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The Application of Inorganic Fertilisers to Conditioned Pinus radiata Prior to Lifting as a Means of Improving Root Growth Capacity
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D. G.M. Donald --- ,A modified root growth capacity technique was used to evaluate the effect of the application of different types and quantities of fertilisers on the root growth capacity (RGC) of conditioned Pinus radiata seedlings. The experiment indicates that 0,05 g N... -
Regeneration Procedures of Pinus radiata in the Southern Cape Province
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.B. Zwolinski --- , D. G.M. Donald --- Forestry Faculty, A. van Laar --- Forestry Faculty,Part 4 of the series of papers concerning the regeneration of Pinus radiata deals with characteristics of the planting stock. Such studies are motivated by the necessity of evaluating different planting stock alternatives for a variety of operational environments. This... -
The Impact of Harvesting Operations on Timber Quality: Causes and Remedies
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Walter Warkotsch --- Forest Engineering Technology, Faculty of Forestry,Forests are devastated daily to satisfy the world's timber demands. Tropical forests throughout the world are exploited and endangered. An obligation therefore exists to avoid damage to timber and minimise waste wherever possible. -
Production and quality norms of certain grass species for fodder flow planning: Pretoria area
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.O. Grunow --- Department of Plant Production, J.W. Rabie --- Department of Plant Production,Four subtropical (Cenchrus. Digitaria, Anthephora and Sorghum) and two temperate grass species (Festuca. Agrotricum) were grown in a replicated field experiment at three levels of N application, with adequate P and K. Species were mown at 4‐, 6‐ and 8‐weekly... -
The use of the cellulase digestion procedure for indexing the dry matter digestibility of forages
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P J K Zacharias --- Department of Grassland Science,The in vitro cellulase technique was compared with the rumen liquor technique and found to be more efficient for the indexing of the dry matter disappearance (DMD) of forages. A cellulase enzyme concentration of 80 IU/gDM gave a satisfactory linear... -
A computer model to predict the structure, performance and feed requirements of a beef herd
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.R. Klug --- Department of Grassland Science,Two computer models of beef enterprises are explained. STOCKFLOW generates monthly herd structures based on 13 animal groups, each comprising animals with similar feed requirements, while FEEDNEED computes the feed requirements of each group. These models use the VISICALC program... -
A mathematical model used to describe animal performance on kikuyu and coastcross II pastures
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: T.P. Karnezos --- Department of Grassland Science, N.M. Tainton --- Department of Grassland Science, D.I. Bransby --- Department of Grassland Science,Data collected from a controlled grazing trial, in which the quality and quantity of kikuyu (Pennisetum clandestinum) and Coastcross II (Cynodon hybrid) pastures fertilized at 2 nitrogen levels (150 and 300 kg N/ha/a) and stocked at 3 stocking rates (8,05,10,74... -
The performance of beef cows on Digitaria eriantha silage
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: M.B. Hardy --- Department of Agriculture and Water Supply (Natal Region), Republic of South Africa N.N. Gray --- Department of Agriculture and Water Supply (Natal Region), Republic of South Africa D.W.A. Mattushek --- Department of Agriculture and Water Supply (Natal Region), Republic of South Africa J.D. Griffiths --- Department of Agriculture and Water Supply (Natal Region), Republic of South AfricaDigitaria eriantha silage, ensiled when the plants were in the late flowering stage (March), was fed ad lib to mature, non‐pregnant, dry Hereford cows from mid‐May to mid‐September. The average daily gain during a 98‐day feeding period was 0,35 kg/cow... -
Use of the microwave oven for drying herbage samples in the field
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T. Daines --- Department of Agriculture, Republic of South Africa R.A. Ingpen --- , Republic of South AfricaDrying of herbage samples in the field using a microwave oven powered by a portable generator has saved time and eliminated the transporting of samples to other stations for handling. Microwave drying is compared to drying in conventional forced-air ovens... -
Evaluation of five pecan (Carya illinoensis) cultivars for nut quality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T.K. Haulik --- , Republic of South Africa L.C. Holtzhausen --- Department of Horticultural Science, Republic of South AfricaFive pecan [Carya illinoensis (Wang.) K. Koch] cultivars, commercially recommended for the Transvaal middleveld areas were evaluated for nut quality (nut size, kernel %, kernel colour, nut shape and shell thickness). New South African grading standards are suggested for nut... -
Effect of time and rate of nitrogen application on the malting quality of barley
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O.T. de Villiers --- Department of Agronomy and Pastures, Republic of South Africa P. C.J. Maree --- Department of Agronomy and Pastures, Republic of South Africa E.W. Laubscher --- Department of Agronomy and Pastures, Republic of South AfricaField trials were conducted to determine the effect of time and rate of single and split applications of nitrogen on various malting parameters of barley. The effect of a single low nitrogen application of 50 kg Nha−1 at sowing was... -
Effect of pre- and post-harvest water stress on the potential for fruit quality defects in avocado (Persea americana Mill.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.P. Bower --- , Republic of South Africa J. G.M. Cutting --- , Republic of South Africa B.N. Wolstenholme --- , Republic of South AfricaPhysiological and pathological disorders of avocado fruit are a limitation to export sales. The influence of pre-harvest water stress on post-harvest quality was studied using a long-term irrigation trial, i.e., re-wetting in the root zone when soil water tensions reached... -
Nitrogen fertilization of tea: Effect of tea leaf plucking criteria on chlorophyll and quality parameters
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.J. van Lelyveld --- , Republic of South Africa Connie Fraser --- , Republic of South Africa B.L. Smith --- , Republic of South Africa G. Visser --- , Republic of South AfricaThe purpose of this investigation was to establish the possible effect of plucking criteria on the quality of black tea produced with different levels of nitrogen fertilization. Increases in leaf age (norms) resulted in increased total chlorophyll in fresh green... -
Polymer effect on infiltration and erosion of sodic soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. Gal --- , Republic of South Africa R. Stern --- , Republic of South Africa J. Levin --- , Republic of South Africa M. Ben-Hur --- , Republic of South AfricaRunoff from irrigated sodic soils is a common phenomenon in arid and semi-arid climates. The effect of a low-charge polysaccharide (LCCP) on infiltration rate (IR) and runoff on two red apedal soils was studied using an irrigation simulator. One was... -
Die invloed van verskillende waterregimes op Up-to-date aartappels II. Opbrengs, grootteverspreiding, kwaliteit en waterverbruik
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.M. Steyn --- , Republiek van Suid-Afrika H.F. du Plessis --- , Republiek van Suid-Afrika P.F. Nortjé --- , Republiek van Suid-AfrikaDrie besproeiingsbehandelings (20, 50 en 70% onttrekking van plantbeskikbare water) is toegepas ten einde die optimum peil van grondwateronttrekking by aartappels te bepaal. Die proef is gedurende die 1987 en 1988 herfsseisoene uitgevoer. Totale waterverbruik van behandelings is bereken en... -
Comparison of protein extraction procedures to assess the effect of quantitative protein composition on the bread-making quality of South African winter wheat cultivars
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D. van Lill --- Small Grain Centre, Republic of South Africa B.S. Wentzel --- Small Grain Centre, Republic of South Africa MarieF. Smith --- , Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South AfricaA suitable technique for the extraction of wheat flour protein fractions was pursued to assess the effect of quantitative protein composition on the bread-making quality of winter wheat cultivars on a large scale. Nine procedures involving the use of different... -
Chemical composition of carrier water influences glyphosate efficacy
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.L. de Villiers --- Small Grain Centre, Republic of South Africa D. du Toit --- , Republic of South AfricaGlyphosate [N-(phosphonomethyl) glycine] phytotoxicity was assessed with different sources of natural water carriers to establish to what extent ions in these carriers antagonize glyphosate activity. Glyphosate phytotoxicity with the most antagonistic carrier was 72% less than with deionized water. Antagonistic... -
The effects of leather tannery sludge on the leachates from soil columns
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.C. Hughes --- Department of Agronomy, Republic of South Africa S. J.A. Girdlestone --- Department of Agronomy, Republic of South AfricaLeather tannery sludge from a chrome-tanning plant was added to the surface horizon of a typic haplustox from South Africa at rates equivalent to 0, 10 and 100 t ha−1. Leaching columns were set up with 100 mm of the... -
Salts in carrier water affect tralkoxydim activity
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.L. De Villiers --- Small Grain Centre, Agricultural Research Council, Republic of South AfricaTralkoxydim {2-[1-(ethoxyimino)-3-hydroxy-5-(2,4,6-trimethyl-phenyl)]cyclohex-2-enone} was tested for susceptibility to antagonism from ions in the carrier water with which it is applied. Borehole and municipal water and deionized water, to which various salts were added, were tested. Tralkoxydim activity was antagonized by 20%... -
Reaksie van twee lengtekoringkultivars op stikstof- en swaelbemesting in die Swartland. II. Opbrengs en bakkwaliteit
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.P. du Plessis --- , Republiek van Suid-Afrika G.A. Agenbag --- Departement Akkerbou en Weiding, Republiek van Suid-AfrikaIn die Swartlandkoringproduksiegebied is daar oor die afgelope tien jaar 'n daling in die gemiddelde prote'ieninhoud en bakkwaliteit van koring ondervind, selfs ten spyte van verhoogde stikstofbemesting. Die belangrikheid van die korrekte N: S verhouding het die vraag laat ontstaan... -
The genetic variability of malt quality and related characteristics in grain sorghum
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W.G. Wenzel --- , Republic of South Africa A.J. Pretorius --- , Republic of South AfricaThe inheritance of and relationships between diastatic power, seed texture, steep mass, malt mass, dry malt mass, rate of moisture uptake during malting and percentage moisture of malt were analysed by means of a factorial crossing design, which involved the... -
Quality response of spring wheat cultivars to post-anthesis water stress intensity
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South AfricaThe effect of different intensities of water stress imposed during the first three weeks of grain filling were determined on the protein content, protein composition and bread volume of three spring wheat cultivars. Water stress was induced by watering the... -
Multivariate assessment of environmental effects on hard red winter wheat. I. Principal-components analysis of yield and bread-making characteristics
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D. van Lili --- Small Grain Centre, Republic of South Africa J.L. Purchase --- Small Grain Centre, Republic of South Africa MarieF. Smith --- , Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa O.T. de Villiers --- Department of Agronomy and Pastures, Republic of South AfricaThe attributes of yield and bread-making quality of winter wheats produced in the Free State are subject to environmental effects. The result is a supply to the baking industry of flour of inconsistent quality, which in turn is detrimental to... -
Multivariate assessment of environmental effects on hard red winter wheat. II. Canonical correlation and canonical variate analysis of yield, biochemical and bread-making characteristics
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D. van Lili --- Small Grain Centre, Republic of South Africa J.L. Purchase --- Small Grain Centre, Republic of South Africa MarieF. Smith --- , Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa O.T. De Villiers --- Department of Botany, Republic of South AfricaThe inconsistent production of winter wheat with acceptable bread-making quality in the Free State reduces the commercial value of the wheat crop. In the second part of this study, canonical correlation analysis was used to determine to what extent variation... -
The influence of Demeton-S-Methyl/Parathion and Imidacloprid on the yield and quality of Russian wheat aphid resistant and susceptible wheat cultivars
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: VickiL. Tolmay --- , South Africa D. van Lill --- , South Africa MarieF. Smith --- , South AfricaRussian wheat aphid, (Diuraphis noxia) causes severe damage to wheat in South Africa and producers have been forced to use insecticides for control. Plant resistance to Russian wheat aphid has been successfully transferred into bread wheat cultivars. A split plot... -
Optimizing glyphosate performance with adjuvants
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.L. de Villiers --- , South Africa R.C. Lindeque --- , South Africa H.A. Smit --- , South AfricaGlyphosate [N-(phosphonomethyl)glycine] is a non-selective herbicide which is extremely sensitive to antagonism by salts in the spray solution and to environmental conditions at application. Various adjuvants were evaluated with glyphosate in glasshouse and field experiments with the aim of identifying... -
A quality assurance strategy for wheat (Triticum aestivum L.) where growth environment predominates
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D. van Lill --- Faculty of Applied Sciences, Technikon Free State, South Africa MarieF. Smith --- Department of Statistics, South AfricaThe variation in the processing quality of South African winter wheat cultivars over growth environments is detrimental to its market value. Variation in protein content has previously been identified as a primary contributor to this variation and should therefore be... -
Die invloed van kultivar, stikstofbemesting en tophoogte op die kwaliteit van oonddroogtabak I. Fisiese kwaliteit en opbrengs
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.J. Malan --- Departement Plantproduksie en Grondkunde, Republiek van Suid Afrika P.S. Hammes --- Departement Plantproduksie en Grondkunde, Republiek van Suid Afrika M.C. Dippenaar --- Navorsingsinstituut vir Tabak en Katoen, Republiek van Suid AfrikaDie toenemende vraag na goeie kwaliteit oonddroogtabak het aanleiding gegee tot navorsing om te bepaal watter rol stikstofbemesting, tophoogte en kultivars speel. Vyf oonddroogtabakkultivars (TL 33, OD86, A4, OD224 en OD212) is in 'n veldproef onderwerp aan drie stikstofbemestingspeile (70,... -
Die invloed van kultivar, stikstofbemesting en tophoogte op die kwaliteit van oonddroogtabak II. Chemiese kwaliteit
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.J. Malan --- Departement Plantproduksie en Grondkunde, Republiek van Suid Afrika P.S. Hammes --- Departement Plantproduksie en Grondkunde, Republiek van Suid Afrika M.C. Dippenaar --- , Republiek van Suid AfrikaDie toenemende vraag na beter kwaliteit oonddroogtabak, het aanleiding gegee tot navorsing om te bepaal watter rol stikstofbemesting, tophoogte en kultivar speel. Vyf oonddroogtabakkultivars (TL33, OD86, A4, OD224 en OD212) is in 'n veldproef onderwerp aan drie stikstofbemestingspeile (70, 100... -
The combining ability of RTx432 for Sorghum malt quality and stem borer resistance
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W.G. Wenzel --- , Republic of South Africa J. van den Berg --- , Republic of South Africa M. Bloem --- , Republic of South AfricaCombining ability of R-lines with respect to malt quality and stem borer resistance was evaluated in two trials. Crosses between three R-lines and eight R-lines were made for malt quality and three R-lines and seven R-lines for stem borer resistance... -
Genotype × environment interaction and principal factor analysis of seed characteristics related to canning quality of small white beans (Phaseolus vulgaris L.) in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.F. de Lange --- Department of Plant Breeding, Republic of South Africa M.T. Labuschagne --- Department of Plant Breeding, Republic of South AfricaAnalysis of variance, correlation analysis and principal factor analysis were applied to data for 23 sensory and physico-chemical traits measured on five cultivars of small white canning beans (Phaseolus vulgaris L.) planted at five localities in the 1995–96 season. Trait... -
Effect of BP1, BP3 and Quince A rootstocks, at three planting densities, on precocity and fruit quality of ‘Forelle’ pear (Pyrus communis L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. du Plooy --- , Republic of South Africa P. van Huyssteen --- , Republic of South Africa‘Forelle’ pear trees (Pyrus communis L.) were established at the Bien Donné experimental farm in the Western Cape Province of South Africa on BP1, BP3 and Quince A rootstocks at three planting densities, i.e., 889, 1667 and 2857 trees. ha... -
The effect of environment and cultivar on sunflower seed. II. Composition and processing quality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Nel --- , Republic of South Africa H.L. Loubser --- , Republic of South Africa P.S. Hammes --- Department of Plant Production and Soil Science, Republic of South AfricaThe processing quality of sunflower seed is determined by its oil yield, oil cake yield and oil cake composition. Quality of the oil cake is determined by its protein and crude fibre content. Seed composition is affected by both cultivar... -
The yield and processing quality of sunflower seed as affected by the amount and timing of nitrogen fertiliser
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Nel --- , Republic of South Africa H.L. Loubser --- , Republic of South Africa P.S. Hammes --- Department of Plant Production and Soil Science, Republic of South AfricaThe response of sunflower (Helianthus annuus L.) seed yield and seed processing quality to the amount and timing of nitrogen were studied in a field trial. Nitrogen application rates were 20, 70 and 120 kg ha−1 with limestone ammonium nitrate... -
The effect of water stress during grain filling on the yield and processing quality of sunflower seed
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Nel --- , Republic of South Africa H.L. Loubser --- , Republic of South Africa P.S. Hammes --- Department of Plant Production and Soil Science, Republic of South AfricaThe oil and protein contents of sunflower seed are affected by water stress. Hullability is a seed quality trait which affects the efficiency of oil extrusion and the quality of the oil cake produced from the seed. Apart from cultivars,... -
Evaluation of sorghum inbred lines for milling quality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.S. Setimela --- , Botswana D.J. Andrews --- Department of Agronomy,Fourteen sorghum inbred lines and one sorghum variety were evaluated for qualitative parameters relating to milling quality. Grain hardness, flour yield, flour particle size and alkali water retention capacity criteria were measured. These quality criteria directly influence acceptability of newly... -
Development and validation of relationships between sunflower seed quality and easily measurable seed characteristics for grading purposes
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Nel --- , Republic of South Africa H.L. Loubser --- , Republic of South Africa P.S. Hammes --- Department of Plant Production and Soil Science, Republic of South AfricaSunflower seed delivered by farmers is usually traded without taking seed quality into account, owing to the lack of a quick and inexpensive method for quality assessment at delivery points. Seed quality parameters (oil content, protein content, hullability and amount... -
Effect of leaf feeding by Melanaphis sacchari (Zehntner) (Homoptera: Aphididae), on sorghum grain quality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. van den Berg --- , South Africa A.J. Pretorius --- , South Africa M. van Loggerenberg --- , South AfricaA study was conducted to determine the effect of leaf feeding by the aphid, Melanaphis sacchari, on grain quality of sorghum. A field trial was planted with two sub-blocks. Each sub-block was planted with ten similar sorghum hybrids. One sub-block... -
Productivity and stability of grain yield in wheat and maize as affected by rotational cropping systems in the eastern Free State
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Nel --- , Republic of South Africa J.L. Purchase --- , Republic of South Africa A. Barnard --- , Republic of South AfricaThe use of crop rotation in the Eastern Free State to enhance profitability and reduce financial risk related to mono-cropped maize and wheat, has rekindled this research. The aim of this research was firstly to quantify the effect of dry... -
The relationship between chicon quality and lateral root formation in witloof chicory (Cichorium intybus L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R. König --- Department of Agronomy, Republic of South Africa N. J.J. Combrink --- Department of Agronomy, Republic of South AfricaIn a related study, it was established that the use of an ebb- and-flood irrigation method during forcing of the taproots of witloof chicory (Cichorium intybus L) could be used to increase lateral root formation. In this study, five irrigation... -
Effect of bearing position on fruit quality of mandarin types
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.S. Verreynne --- Department of Horticultural Science, South Africa E. Rabe --- Department of Horticultural Science, South Africa K.I. Theron --- Department of Horticultural Science, South AfricaDifferences in juice quality are associated with positional differences in canopy microclimate and exposure of individual fruit to light and temperature. Differences of internal fruit quality between fruit from different sectors of the tree were investigated. The trials were carried... -
The use of size exclusion high performance liquid chromatography (SE-HPLC) for wheat quality prediction in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.T. Labuschagne --- Department of Plant Sciences, South Africa U. Aucamp --- , South AfricaSDS-PAGE and RP-HPLC imply a total reduction of native protein aggregates. This leads to a loss of information concerning structure, interaction and stability of protein complexes. A major advantage of SE-HPLC is its potential to work with relatively large aggregates,... -
Effect of timing and method of nitrogen application on rind colour, fruit size, internal fruit quality and yield of ‘Mihowase Satsuma’ mandarin (Citrus unshiu Marc.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F.N. Mudau --- Department of Horticultural Science, Republic of South Africa S. Tuwana --- Department of Horticultural Science, Republic of South Africa K.I. Theron --- Department of Horticultural Science, Republic of South Africa E. Rabe --- Department of Horticultural Science, Republic of South AfricaEarly rind colour development is a major problem in the production of early-maturing ‘Mihowase Satsuma’ mandarin (Citrus unshiu Marc.) in the Western Cape, South Africa. The effect of different combinations of soil- applied limestone ammonium nitrate and foliar-applied low-biuret urea... -
Sorghum malting quality as affected by availability of suitable cultivars
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. van Loggerenberg --- , A.J. Pretorius --- ,Malting quality of grain samples of commercially available malting class sorghum cultivars was determined over five seasons and three localities for each season. The number of cultivars included in the National Sorghum Cultivar Trials has declined in recent years. The... -
Physical and chemical properties associated with food quality in sorghum
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N. Geleta --- Department of Plant Sciences, South Africa M.T. Labuschagne --- Department of Plant Sciences, South Africa G. Osthoff --- Department of Microbial, Biochemical and Food Biotechnology, South Africa A. Hugo --- Department of Microbial, Biochemical and Food Biotechnology, South Africa C. Bothma --- Department of Microbial, Biochemical and Food Biotechnology, South AfricaSamples of 13 genetically diverse sorghum [Sorghum bicolor (L.) Moench] accessions were analysed for physical properties and chemical composition. The food (injera) quality and the phenolic (condensed tannins) content of six sorghum samples were also determined. The accessions showed a... -
Cattle manure increases soil weed population and species diversity in a semi-arid environment
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.A. Materechera --- Department of Plant Production, Faculty of Agriculture, Science & Technology, South Africa L.N. Modiakgotla --- Department of Plant Production, Faculty of Agriculture, Science & Technology, South AfricaThis study investigated the quality of available cattle manure resources in selected villages of the North West province and its influence as a weed seed source when applied to soil. Analysis of manure samples showed a large variation in the... -
Stability analysis of kernel and milling characteristics in winter and facultative wheat
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: U. Aucamp --- Department of Plant Sciences, South Africa M.T. Labuschagne --- Department of Plant Sciences, South Africa C.S. van Deventer --- Department of Plant Sciences, South AfricaConsistency in quality of wheat grain and flour over seasons is critical to the manufacture of high quality products. The aim of this study was to measure the stability of kernel and milling quality characteristics. Thirteen hard red winter and... -
Effect of soil tillage, crop rotation and nitrogen application rates on bread-baking quality of spring wheat (Triticum aestivum L.) in the Swartland wheat producing area of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.H. Maali --- Department of Agronomy, Republic of South Africa G.A. Agenbag --- Department of Agronomy, Republic of South AfricaSpring wheat (Triticum aestivum L.) is produced in the wheat producing areas of the Western Cape Province, Republic of South Africa, primarily for bread-baking purposes. Milling and baking characteristics are therefore of utmost importance. In a long-term tillage and crop... -
Quality as a factor influencing the possible utilization of eight exotic legume species as mulches
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Ver Elst --- Department of Agronomy, P.J. Pieterse --- Department of Agronomy,Invasive exotic legumes need to be controlled by amongst others, mechanical control methods. Residues such as twigs and leaves of felled trees can possibly be utilized as a low cost, organic fertilizer. The quality of the organic materials influences their... -
Using canonical variate analysis to group small white bean cultivars canned in tomato sauce according to their canning quality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. van der Merwe --- , Republic of South Africa G. Osthoff --- Department of Microbial, Biochemical and Food Technology, South Africa A.J. Pretorius --- , Republic of South AfricaA laboratory-scale canning and evaluation method was employed to evaluate the canning quality of small white beans over cultivars, localities and seasons. Four small white bean cultivars, representing 15 localities from the 2001/02 season and six cultivars representing 17 localities... -
Evaluation and identification of old and new macadamia cultivars and selections at Pietermaritzburg
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Allan --- Horticultural Science, South AfricaNewer and older cultivars and selections of macadamias have been evaluated at Pietermaritzburg over periods of from five to 35 years. In their sixth year, trees of some of the newer selections have produced good yields of over 10 kg... -
Response of Lachenalia growing in soil to nitrogen fertilization during the nursery phase
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.M. Engelbrecht --- Department of Soil, South Africa C.C. du Preez --- Department of Soil, South Africa J.J. Spies --- Departement of Plant Sciences, South AfricaDuring the nursery phase, Lachenalia flower bulb producers plant bulblets propagated from leaf cuttings, for enlargement. They strive for a high yield of good quality bulbs that are of a marketable size within a year. In this regard nitrogen is... -
A canning quality model for small white bean lines selected for breeding (Phaseolus vulgaris L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. van der Merwe --- , South Africa G. Osthoff --- Department of Microbial, 9300 South Africa A.J. Pretorius --- , South AfricaThe study aimed to validate canonical variate analysis (CVA) model equations for the grouping of small white beans according to canning quality by testing them on four cultivar samples of known canning quality (2000/01 season), and 24 breeding samples that... -
Response of Lachenalia growing in soil to nitrogen fertilisation during the pot plant phase
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.M. Engelbrecht --- Department of Soil, Crop and Climate Sciences, South Africa C.C. du Preez --- Department of Soil, Crop and Climate Sciences, South Africa J.J. Spies --- Department of Plant Sciences, South AfricaLachenalia bulbs used in the pot plant industry are produced in the nursery phase from bulblets propagated from leaf cuttings. Fertilisation during this phase of enlargement can ultimately influence the growth and flowering of pot plants through the nutritional status... -
Soil organic matter and microbial biomass as influenced by sugar cane (Saccharum hybrid sp.) production practices in Mauritius
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.R. Ng Cheong --- , Mauritius K. F. Ng Kee Kwong --- , Mauritius C. C. Du Preez --- Department of Soil, Crop and Climate Sciences, South AfricaSugar cane has been grown in Mauritius for over 350 years in a monocropping system. As a result, soil quality could have declined since productivity has been stagnating over the last twenty years in spite of improved agronomic practices and... -
The effect of grain mould fungi on sorghum malt quality and its management during malting
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.T. Tesfaendrias --- , South Africa N.W. McLaren --- , South Africa W.J. Swart --- , South AfricaThe effect of sodium hypochlorite (NaOCl) at various concentrations during steeping in reducing the growth of grain mould fungi and the improvement of malt quality was tested. Significant (P ≤ 0.05) differences in grain mould fungal frequency, percentage germination and... -
Evaluation of near infrared spectra for the prediction of post harvest quality in canning peaches
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. Manley --- Department of Food Science, South Africa E. Joubert --- Department of Food Science, South Africa L. Myburgh --- Department of Food Science, South Africa L. Lotz --- , South Africa M. Kidd --- , South AfricaHuge production losses occur because of deterioration of quality of clingstone peaches during cold storage, rendering the fruit unsuitable for canning. Near infrared (NIR) spectra recorded from intact clingstone peaches were evaluated to predict post harvest quality of these peaches... -
An overview of the context and scope of wheat (Triticum aestivum) research in South Africa from 1983 to 2008
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.A. Smit --- , South Africa V.L. Tolmay --- , South Africa A. Barnard --- , South Africa J.P. Jordaan --- , South Africa F.P. Koekemoer --- , South Africa W.M. Otto --- , South Africa Z.A. Pretorius --- Department of Plant Sciences, South Africa J.L. Purchase --- , South Africa J.P.C. Tolmay --- , South AfricaThe domestic requirement for wheat in South Africa is approximately 2.8 million tons and annually the shortfall on local production is imported to meet the demand. During the past 25 years two distinct wheat marketing mechanisms characterised the wheat industry,... -
Response of Lachenalia growing in soil to interactions between nitrogen and phosphorus fertilisation in the nursery phase
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.M. Engelbrecht --- Department of Soil, South Africa C.C. du Preez --- Department of Soil, South Africa J.J. Spies --- Department of Plant Sciences, South AfricaThe interactions between nutrients required by plants play an important role in sustainable crop production. Both nitrogen and phosphorus are involved in a number of important functions in the plant such as carbohydrate and protein formation. The need to investigate... -
Yield and quality response of rose geranium (Pelargonium graveolens L.) to sulphur and phosphorus application
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: MM Sedibe --- School of Environmental Health and Agriculture, South Africa J Allemann --- Department of Soil, Crop and Climate Sciences, South AfricaSulphur and phosphorus are essential plant macronutrients. Sulphur is involved in the formation of chlorophyll, activation of enzymes and is part of coenzyme A. Phosphorus forms part of the structure of nucleic acids and phospholipids. Two separate studies were conducted... -
THE EFFECT OF NEUTRALIZATION OF THE ANAESTHETIC MS 222 ON FRESHWATER QUALITY
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G.L. Smit --- Department of Zoology, P. S.J. Halliday --- Department of Zoology, J. Hattingh --- Department of Zoology,This study indicates that MS 222, which is acidic in nature, causes changes in pH, pCO2 alkalinity and calcium hardness levels in tapwater and bore-holewater. Distilled water shows pH and conductivity changes whereas conductivity was not affected in boreholewater. Tapwater... -
ON THE DISSOLVED SOLIDS OF THE PONGOLO FLOOD PLAIN PANS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J. Heeg --- Pongolo Research Group, C.M. Breen --- Pongolo Research Group, P.M. Colvin --- Pongolo Research Group, H.D. Furness --- Pongolo Research Group, C.F. Musil --- Pongolo Research Group,The water retained in the Pongolo flood plain pans differs from that of the Pongolo River not only in having a higher TDS, but also in the composition of the solutes, which approximate to seawater in their equivalent ionic proportions... -
THE INFLUENCE OF P-RETENTION BY SOILS AND SEDIMENTS ON THE WATER QUALITY OF THE LIONS RIVER
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: H.D. Furness C.M. BreenThe soils of Midmar dam catchment and the sediments of the Lions river are shown to have high P-retention properties. Present conditions result in little leaching of PO4 −4 from the soils and favour a net transport of P from... -
A LIMNOLOGICAL INVESTIGATION OF LAKE LIAMBEZI, CAPRIVI
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: M.T. Seaman --- , South Africa W.E. Scott --- , South Africa R.D. Walmsley --- , South Africa B. C.W. van der Waal --- , South Africa D.F. Toerien --- , South AfricaA general investigation was carried out on Lake Liambezi to characterize the limnological features of the lake. The lake, 101 km2 in area and situated within the tropics, was found to be shallow and bordered by reed swamps, particularly on... -
FAECAL BACTERIAL CONTAMINATION OF TROUT HATCHERY WATER EFFLUENT
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G.R. Batchelor --- Division of Nature Conservation, South AfricaThis study was undertaken to determine the occurrence of faecal bacteria in two trout hatcheries in the Transvaal Province, South Africa. The results indicate that variations in numbers of enteric bacteria are partly caused by man-made changes to the influent... -
DIATOMS AS INDICATORS OF WATER QUALITY IN THE UPPER HENNOPS RIVER (Transvaal, South Africa)
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: F.R. Schoeman --- , South AfricaThe water quality of the upper Hennops River was determined by applying the method of Lange-Bertalot (1978; 1979), which is based on groups of diatom species with similar tolerances towards pollution. A definite improvement in the water quality was indicated... -
THE COMPOSITION OF WATER COLLECTED FROM THE KUISEB RIVER, NAMIB DESERT, AT GOBABEB
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: JohanU Grobbelaar --- , South Africa MaryK Seely --- , South AfricaWater from the Kuiseb River at Gobabeb varied in ionic content. Various ionic dominance orders were recorded from flooding until the pools dried up. The quality was not suitable for irrigation, but would present no problems when used by stock... -
QUALITY AND NUTRIENT RELEASE OF POULTRY MANURE IMMERSED IN WATER
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: O.V. Msiska --- Ministry of Forestry and Natural Resources, Fisheries Department, MalawiAttempts aimed at establishing a sound basis for the frequency of manure inputs into fish pond water showed that the greater bulk of mineral release occurs within 72 hours of immersion into water. Elemental composition of the poultry manure revealed... -
NOTES ON THE AVAILABILITY AND CHEMICAL COMPOSITION OF WATER FROM THE GRAVEL PLAINS OF THE NAMIB-NAUKLUFT PARK
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: O.B. Kok --- Department of Zoology, J.U. Grobbelaar --- Department of Zoology,Data are presented on the occurrence of a surprising number of permanent water sources on the gravel plains of the Namib-Naukluft Park, South West Africa. As a consequence, no game animal is further than ca 25 km away from the... -
WATER QUALITY MODELLING PERCEPTIONS OF A WATER RESOURCE MANAGEMENT ORGANIZATION
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: H.D. Furness --- Scientific Services Division, South Africa W.N. Richards --- Scientific Services Division, South AfricaThe use of models by the South African water industry is discussed. It is suggested that climatic conditions and existing legislation have influenced the formulation of models. Future model requirements by the water Industry are outlined. Changes are suggested which... -
FUTURE CHALLENGES IN WATER QUALITY MODELLING WITH PARTICULAR REFERENCE TO OPERATIONALLY CLOSED CATCHMENTS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: S.F. Forster --- Department of Water Affairs, South Africa F.A. Stoffberg --- Department of Water Affairs, South Africa J.A. van Rooyen --- Department of Water Affairs, South AfricaAs a result of the declining quality of many water sources, the use of water quality models in planning is increasing. To date applications have involved the simulation of total dissolved salts and nutrients, largely in catchments affected by urban... -
AN HOLISTIC APPROACH TO THE MANAGEMENT OF WATER QUALITY IN FALSE BAY, CAPE TOWN, SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: A. J.R. Quick --- Town Planning Branch, Cape Town City Council, South AfricaAn overview of the water quality status of False Bay identified the bacterial/viral water quality of stormwater and rivers discharging near contact recreation beaches to be the management concern of highest priority. A second water quality concern is the potential... -
CHANGES IN URBAN RESIDENTIAL LAND IN THE RIETSPRUIT CATCHMENT, SOUTHERN TRANSVAAL
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: M.J. Silberbauer --- Department of Water Affairs, South Africa J. Moolman --- Department of Water Affairs, South AfricaInformal settlements have become an important and rapidly-expanding component of urban development in South Africa. In the Rietspruit catchment, south-west of Johannesburg, average growth rates in urban land cover of up to 2.7 km2 per year (1972–1991) were measured from... -
THE USE OF TOXICITY TESTING IN EFFLUENT REGULATION AND CONTROL: A NEW DIMENSION TO ASSESSMENT AND MANAGEMENT OF WATER QUALITY IN SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: D.J. Roux --- , South AfricaEfficient management tools are continually required to cope with increasing demands placed on the quality and quantity of aquatic resources. Recent developments in environmental monitoring indicate the importance of incorporating biological indicators in assessment programmes. Aquatic toxicology has consequently become... -
A PRELIMINARY EVALUATION OF ASPECTS OF SASS (SOUTH AFRICAN SCORING SYSTEM) FOR THE RAPID BIOASSESSMENT OF WATER QUALITY IN RIVERS, WITH PARTICULAR REFERENCE TO THE INCORPORATION OF SASS IN A NATIONAL BIOMONITORING PROGRAMME
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: H. F. Dallas --- , , South AfricaThe rapid bioassessment method, SASS (South African Scoring System) has been developed to assess water quality in riverine ecosystems. It is a scoring system based on the presence or absence of macroinvertebrate groups, and yields three values, namely SASS4 Score,... -
THE EFFECT OF SEASON ON A BIOTIC WATER QUALITY INDEX: A CASE STUDY OF THE YELLOW JACKET AND MAZOWE RIVERS, ZIMBABWE.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: B. Gratwicke --- , , ZimbabweThe effect of season on the South African Scoring System (SASS) biotic index for rapid assessment of water quality using benthic macroinvertebrates was investigated using the Yellow Jacket and Mazowe Rivers in Zimbabwe as a case study. Several impacts in... -
THE STATE OF KNOWLEDGE OF WATER QUALITY AND MAJOR BIOTIC COMPONENTS OF THE MHLATHUZE ESTUARY
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: D. P. Cyrus --- , , South AfricaThis note briefly introduces the concept of the Environmental Reserve of the New Water Act as well as the set of papers hereafter which deal with specific components of the ecology of the Mhlathuze Estuary. These were prepared for an... -
COMMENTS ON THE WATER QUALITY OF THE MHLATHUZE ESTUARY IN RELATION TO DETERMINING THE ECOLOGICAL INTEGRITY CLASS
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: V. Wepener --- , , South Africa L. A. Vermeulen --- , , South AfricaWater quality forms an integral component of the determination of the Ecological Reserve of a water resource. This paper presents the available historical and current information on the water quality of the Mhlathuze estuary, The data were assessed in order... -
Seasonal herbage production from two range types in southern Mozambique
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JP Muir A AlageEstimating ideal stocking rates in southern Mozambique based on range productivity is difficult since forage and foggage production of range types receiving different amounts of rainfall have not been quantified to date. Exclosures were constructed in upland and alluvial range... -
Merino sheep responses to different stocking rates and seasonal variation under rangeland conditions of Lesotho
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: LM Mpiti-Shakhane GY Kanyama-Phiri WO Odenya JW BandaMerino sheep responses to stocking rates were determined over a one-year period. The experimental design consisted of three stocking rates; light (2.0ha LSU-1), moderate (1.25ha LSU-1) and heavy (0.5ha LSU-1) in a Randomised Complete Block Design with three replicates per... -
Ecological effects of fire-breaks in the montane grasslands of the southern Drakensberg, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: TG O'Connor RG Uys AJ MillsFire-breaks, by legislation, are burnt annually before mid-winter in the southern Drakensberg, affecting 5–10% of the landscape, and resulting in marked selection for the early season flush by both livestock and wildlife. This study investigated whether this severe defoliation regime... -
Analysis of factors affecting milk yield of Ankole cows grazed on natural range pastures in Uganda
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S Okello EN Sabiiti HJ SchwartzEffects of seasonal rainfall (RF) and maximum temperature (Tm) variations on milk yield of Ankole cows grazed solely on range pastures were investigated. The resulting changes in herbage growth (HG), herbage yields (HY), herbage crude protein (CPh) and neutral detergent... -
Using faecal profiling to assess the effects of different management types on diet quality in semi-arid savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KR Mbatha D WardWe used faecal profiling to assess diet quality of animals under three different management types in a semi-arid savanna, northwest of Kimberley, Northern Cape, South Africa. The levels of faecal crude protein (FCP) and faecal phosphorus (FP) of free-ranging springbok... -
Cattle diet selection during the hot-dry season in a semi-arid region of Namibia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MLJ Katjiua D WardThe northern Kalahari Desert is dominated by Terminalia sericea savanna woodland and a sparse herbaceous layer. Range ecologists regard T. sericea as a major encroaching species and that such encroachment represents a cost to cattle production. In contrast, pastoralists regard... -
Determining spatial and temporal variability in quantity and quality of vegetation for estimating the predictable sustainable stocking rate in the semi-arid savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KR Mbatha D WardThis study assessed the importance of spatial and temporal variation in plant quality and quantity for determining sustainable stocking rates in game, commercial and communal ranches in semi-arid savanna of the Northern Cape Province, South Africa, in wet and dry... -
Effects of herbivore exclosures on variation in quality and quantity of plants among management and habitat types in a semiarid savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KR Mbatha --- Department of Conservation Ecology, South Africa D Ward --- School of Biological and Conservation Sciences, South AfricaThe effects of grazing on plant biomass, plant quality, species evenness, species diversity and species composition were determined among management types (communal, commercial and game) and among habitat types (open savanna, rocky and pan) in a semiarid savanna in South... -
The distribution of sweetveld and sourveld in South Africa's grassland biome in relation to environmental factors
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: W.N. Ellery --- Department of Geographical and Environmental Sciences, Republic of South Africa R.J. Scholes --- CSIR, Republic of South Africa M.C. Scholes --- Centre for African Ecology, Department of Botany, Republic of South AfricaThe distribution of sweet‐ and sourveld in relation to climate, parent material and soil nutrients has been examined in South Africa's grassland biome. Sourveld occurs in areas with high water supply and where parent material gives rise to soils with... -
AU Triumph, Johnstone and Kentucky 31 tall fescue pastures versus maize silage in diets for lactating dairy cattle
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.F. Kabiligi --- , Rwanda B.R. Moss --- Department of Animal and Dairy Sciences, United States of America D.I. Bransby --- Agronomy Dept., United States of America J.L. Holliman --- , United States of America J.C. Lin --- Department of Animal and Dairy Sciences, United States of AmericaThe performance of lactating dairy cattle fed on a maize silage (S) dry‐lot scheme was compared with that of lactating dairy cattle switched abruptly from a dry‐lot regime to graze endophyte‐free Johnstone (J), Kentucky 31 (K), or AU Triumph (T)... -
Predicting animal production on sourveld: A species‐based approach
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.J. O'Reagain --- , Republic of South AfricaA simulation model was developed to predict average daily gain (ADG) in cattle and sheep grazing different species and swards of different species composition on Dohne Sourveld. The model was based upon measured ingestive and digestive characteristics of different grass... -
Predicting animal production on sourveld: A sward‐based approach
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.J. O'Reagain --- , Republic of South AfricaSimulation models were developed to assess the effects of sward structure and species composition on average daily gain (ADG) and seasonal live mass gain (LWG) in cattle and sheep on Döhne Sourveld. The models used diet quality and intake data... -
Influence of bushdumps on the herbaceous understorey in a mesic Eastern Cape savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M. Mapuma --- Eastern Cape Department of Agriculture, Republic of South AfiicaStudies of the effects of woody vegetation on herbaceous vegetation in southern Africa have focused almost exclusively on savannas with isolated trees with no attention given to multi‐species bushclump savannas. The influence of multi‐species bushdumps on herbaceous vegetation was investigated... -
Impact of tree crowns on grass quality and structure in a semi‐arid rangeland in southwestern Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C.S. Moyo --- , Zimbabwe B.M. Campbell --- Institute of Environmental Studies, Zimbabwe W. Dijkman --- Department of Plant Ecology & Evolutionary Biology, NetherlandsUnderstory areas in semi‐arid rangelands can be a habitat for high‐yielding palatable grasses. Selective grazing of these grasses can result in their replacement by less palatable grass species, normally found in open areas. An experiment, at Matopos Research Station, sought... -
The influence of rest period during the growing season on the potential of four perennial tropical grass species as foggage
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.C. le Roux C.S. DannhauserThe foggage acceptability of Digitaria eriantha Steud., Anthephora pubescens, Panicum maximum (cultivar Green panic) and Cenchrus ciliaris (cultivar Gayndah), subjected to three different treatments during the growing season, were evaluated during three seasons (1987/1988, 1988/1989 and 1989/1990). Treatments comprised of... -
The wood properties and sawn-board quality of South African-grown Pinus maximinoi (HE Moore)
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: F.S. MalanThis report summarises results of past research in South Africa on the wood properties and qualities of P. maximinoi, supplemented by results of a study performed recently on an approximately 15.5-year-old provenance trial at Wilgeboom after it had been severely... -
Training of Professional Psychologists for Africa: Community Psychology or Community Work?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Olaniyi Bojuwoye --- University of Kwazulu-Natal, South AfricaIf the practice of psychology is to be relevant to environmental realities and context sensitive then conscious consideration must be given to the psychology training programme. Training programmes should give due recognition to the historical, political, social, economic and cultural... -
Community Psychology and Quality of Life in Tanzania
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Paula Gormley --- Teosilo Kisanji University, Tanzania Tuntufye Mwamwenda --- University of KwaZulu-Natal, South AfricaThe purpose of this study was to explore the status of community psychology and its contribution to the quality of life in Tanzania. The study was based on both literature review and interviews. First, social responses to problems such as... -
A Comparison of Quality of Life in Haemodialysis and Peritoneal Dialysis Patients
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Priyesh Bipath --- University of Pretoria, Catherine Govender --- University of Pretoria, Margaretha Viljoen --- University of Pretoria,Decreased quality of life of end-stage renal disease is further compromised by renal function replacement treatments such as haemodialysis (HD) and peritoneal dialysis (PD). Poor quality of life negatively affects treatment outcome. This study compared quality of life between HD... -
Psychological Well-Being and Health Related Quality of Life among a Group of Low-Income Women Living with HIV/AIDS in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Krishna Mannadiar Nair --- Chatsworth Regional Hospice, South Africa Nithi Muthukrishna --- University of KwaZulu-Natal, South AfricaThis study documented the relationships among biomedical factors, psychosocial factors, health related quality of life (HRQOL) and suicidality in respect of HIV positive women in KwaZulu-Natal. One hundred and thirty three (133) women over the age of 18 years (mean... -
Structural Effects of Poverty on Children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Severino Machingambi --- Walter Sisulu University, South Africa Newman Wadesango --- Walter Sisulu University, South AfricaPoverty has effects on the wellbeing of children through latent structural effects that influence the ecologies in which children develop and mature. Some of the salient and relatively under researched include homelessness and overcrowding and certain traditional cultural practices that... -
Sense of Coherence and Quality of Life in Elderly Persons Living with Diabetes Mellitus: An Exploratory Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melody Knight --- Nelson Mandela Metropolitan University, Diane Elkonin --- Nelson Mandela Metropolitan University, Ottilia Brown --- Nelson Mandela Metropolitan University,This study sought to explore and describe the sense of coherence (SOC) and quality of life (QoL) in elderly people living with diabetes mellitus (DM). Participants were 72 elderly persons with DM (men = 19, women = 53, M (age)... -
Compassion Fatigue, Burnout and Compassion Satisfaction: Prevalence among Nursing Students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, Juan A. Nel --- University of South Africa,This article reports on the professional quality of life of a sample of participants who were enrolled for an academic programme in Nursing Science (N = 80, females = 73). Data were collected utilising the Professional Quality of Life (ProQOL... -
South African Eastern Cape Contexts Influencing the Quality of Community Home-Based Care
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: David Morton --- Nelson Mandela Metropolitan University, Thoko Mayekiso --- Nelson Mandela Metropolitan University, Peter Cunningham --- Nelson Mandela Metropolitan University,This study explored the perceptions of the quality of community home-based care (CHBC) as provided by volunteer caregivers in a South African Eastern Cape district. Data on perceptions regarding quality of care were collected from 76 community informants (32 volunteer... -
On the Mappings Preserving Equality of 2-Distance
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wei-Jia Jia* --- School of Mathematics Science, P.R. ChinaIn this paper, we consider 2-isometries, 2-continuous mappings and mappings preserving equality of 2-distance and investigate the relation between the three mappings in linear 2-normed spaces. We prove that if f: E → F is a mapping preserving equality of... -
More on operator Bellman inequality
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: F. Mirzapour --- Department of Mathematics, Faculty of Sciences, Iran A. Morassaei --- Department of Mathematics, Faculty of Sciences, Iran M.S. Moslehian --- Department of Pure Mathematics, Center of Excellence in Analysis on Algebraic Structures (CEAAS), IranWe present a Bellman inequality involving operator means for operators acting on a Hilbert space. We also give some Bellman inequalities concerning sesquilinear forms. Finally, we refine the Jensen's operator inequality and use it for obtaining a refinement of the... -
Hilbert-type inequalities for Hilbert space operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mario Krnić --- Faculty of Electrical Engineering and Computing, CroatiaIn this paper we establish a general form of the Hilbert inequality for positive invertible operators on a Hilbert space. Special emphasis is given to such inequalities with homogeneous kernels. In some general cases the best possible constant factors are... -
The quality of HIV/AIDS case-detection and case-reporting systems in Mozambique
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Baltazar Chilundo Sundeep Sahay Johanne SundbyDespite the underlying importance of surveillance systems for the management of HIV/AIDS prevention and control programmes, there has been limited analysis of the quality of HIV/AIDS case-detection and case-reporting systems, beginning with peripheral facilities through to those at national levels... -
Barriers to counselling support for HIV/AIDS patients in south-western Cameroon
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: CharlesC Fonchingong TimothyO Mbuagbo JenniferT AbongThe potential synergy between counselling and HIV/AIDS prevention is gaining recognition in Cameroon as counselling sessions are more often organised at health centres. In order to evaluate the actual achievements of these efforts, a qualitative ethnographic survey (based on interviews... -
Gendered socioeconomic conditions and HIV risk behaviours among young people in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kelly HallmanRecent evidence suggests that the burden of new HIV infections in sub-Saharan Africa is concentrated among young people, especially females. Even in a country such as South Africa where knowledge among young people of how to protect oneself from infection... -
Loveness and her brothers: trajectories of life for children orphaned by HIV/AIDS in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: C Bawa YambaA central theme in the contemporary rhetoric of those charged with managing HIV/AIDS interventions is how to handle and alleviate the plight of orphans and other vulnerable children (OVCs). The many glossy documents describing the policy and action plans of... -
Community-based care of children with HIV in Potchefstroom, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Anneke Van Graan Engela Van der Walt Mada WatsonChildren contract HIV infection largely through vertical transmission and are vulnerable to AIDS illness due to an immature immune system. In South Africa, hospitals are often overburdened and thus children with HIV may be directed to the community for care... -
HIV/AIDS stigma: The latest dirty secret
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jo Stein --- AIDS and Society Research Unit, Centre for Social Science Research, South AfricaThe rejection of HIV/AIDS stigma is based on the understanding that all acts of social exclusion relating to HIV/AIDS are not only morally wrong but also counterproductive to effective HIV/AIDS prevention and treatment. There is some survey evidence suggesting that... -
Quality of life of people living with HIV/AIDS and on highly active antiretroviral therapy in Ethiopia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kebede Abera --- School of Pharmacy, Ethiopia Teferi Gedif --- School of Pharmacy, Ethiopia Ephrem Engidawork --- School of Pharmacy, Ethiopia Tsige Gebre-Mariam --- School of Pharmacy, EthiopiaThe Amharic version of the Short Form-36 Health Survey (SF-36) was used to measure quality of life among patients on highly active antiretroviral therapy (HAART) at selected governmental hospitals in central and southern Ethiopia. The study was cross-sectional and used... -
Personal coping strategies for managing the side effects of antiretroviral therapy among patients at an HIV/AIDS clinic in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rogers Kyajja --- , Uganda Joshua Kanaabi Muliira --- , Uganda Elizabeth Ayebare --- , UgandaThe side effects of antiretroviral (ARV) medications negatively impact patients’ quality of life and adherence to treatment. This study describes the burden of side effects from ARV treatment as experienced by a sample of HIV/AIDS patients and identifies the personal... -
‘The epidemic in this country has the face of a woman’1: Gender and HIV/AIDS in South Africa2
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Leah Gilbert --- Department of Sociology, South Africa Terry-Ann SelikowEpidemiological data clearly show that the highest levels of HIV prevalence occur in sub-Saharan Africa. Less visible, however, is the complex combination of forces that fuel HIV epidemics in this region — these have been dubbed 'the lethal cocktail.' It... -
Risk management in HIV/AIDS: ethical and economic issues associated with restricting HAART access only to adherent patients
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Richard Chawana --- , South Africa Donna Knapp van Bogaert --- , South AfricaLike many other developing nations, South Africa faces the challenge of mobilising resources in response to the HIV pandemic. There is a large budget gap between the ideal and the actual amount of funding needed to achieve universal access to... -
Qualitative study of the influence of antidepressants on the psychological health of patients on antiretroviral therapy in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ElialiliaS Okello --- Department of Psychiatry, Uganda VictoriaK Ngo --- , United States Gerry Ryan --- , United States Seggane Musisi --- Department of Psychiatry, Uganda Dickens Akena --- Department of Psychiatry, Uganda Noeline Nakasujja --- Department of Psychiatry, Uganda Glenn Wagner --- , United StatesThe study set out to explore how HIV-positive individuals conceptualise and describe depression and its manifestation in their lives, and how this may change over time in the context of antiretroviral therapy (ART) and antidepressant treatment. We conducted in-depth interviews... -
Housing conditions of home-based care patients in Botswana and the implications for HIV care
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lily Clara Fidzani --- Department of Family and Consumer Sciences, Botswana KesitegileSM Gobotswang --- Department of Family and Consumer Sciences, BotswanaPeople living with HIV or with a terminal disease face frequent health risks due to opportunistic infections which affect their way of life and dramatically increase their risk of death. Increasingly, terminally ill patients in Botswana are cared for at... -
A narrative review of research on the effects of physical activity on people living with HIV and opportunities for health promotion in disadvantaged settings
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Clemens Ley --- , South Africa María Rato Barrio --- , South AfricaThe article explores different types and effects of physical activity for people living with HIV. Considering the lack of studies done in African contexts and the disparity between research settings and natural settings, a narrative review of the literature was... -
Patient and provider perspectives on improving the linkage of HIV-positive pregnant women to long-term HIV care and treatment in eastern Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Haneefa Saleem --- Department of International Health, USA Robert Kyeyagalire --- Nuffield Department of Population Health, United Kingdom Sarah Smith Lunsford --- EnCompass, LLC, USADespite strong evidence that antiretroviral therapy (ART) reduces the risk of mother-to-child transmission of HIV and improves the health of HIV-positive mothers, many HIV-positive pregnant women do not enrol into long-term HIV care and treatment. This study examined barriers and... -
Some aspects of the ecology of the Groot Letaba River in the Northern Province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Vlok JS EngelbrechtThe aim of this pilot study was to evaluate the current ecological status of the Groot Letaba River and to compare this information with historical data. The objective was to determine the effects of various impacts on the fish populations... -
Aftermath of simultaneous toxic spills in the Klein Nyl River, Northern Province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Jooste L PollingIn late August 1998, a mechanical malfunction at the Nylstroom Sewage Treatment Works resulted in a massive quantity of untreated sewage flowing into the Klein Nyl River. Simultaneously, 5km upstream, a poly-aromatic hydrocarbon poison was simultaneously leaked into the same... -
Groundwater quality monitoring around Bass Lake, Betty's Bay, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: K Schachtschneider K WinterThe study involves the analysis of groundwater around Bass Lake, part of a fragile black water lake system situated along a narrow coastal plain in the southern Cape, in order to establish the quality of the water and to identify... -
The macroinvertebrates of the Cunene River from the Ruacana Falls to the river mouth and assessment of the conservation status of the river
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FC de Moor HM Barber-James AD Harrison CR Lugo-OrtizThe proposed construction of a second hydroelectric power-generating dam on the Cunene (Kunene) River on the Namibia-Angola border, more than 100km downstream of the Ruacana hydroelectric power plant, will have a major influence on the aquatic biota of this river... -
Sublethal effects of manganese on the haematology and osmoregulation of Oreochromis mossambicus after acute exposure
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Barnhoorn JHJ van VuurenOreochromis mossambicus were exposed for 96 hours to sublethal manganese concentrations in a continuous flow-through system. The sublethal concentrations were determined from the LC50 value of manganese (1.723mg/l), which included a 10% (172.3mg/l), 15% (259.8mg/l) and 20% (345.6mg/l) concentration of... -
The state of knowledge of water quality and major biotic components of the Richards Bay coastal lakes
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DP CyrusThis note briefly introduces the concept of the Environmental Reserve of the new Water Act as well as the set of papers that follow that deal with specific components of the four coastal lakes at the lower end of the... -
A comparison of several methods of assessing river condition using benthic macroinvertebrate assemblages
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CA BrownThis paper attempts to address some of the problems that are faced in the endeavour to minimise the time and financial costs of environmental monitoring. At the same time, it aims to assess the usefulness to freshwater studies of some... -
Beacons in the limnological landscape
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BR AllansonAn overview is given of a number of major developments in the limnology of South Africa, Zimbabwe and Namibia. None was possible without the involvement of enthusiastic investigators who, over some 70 years, stimulated the growth of freshwater research in... -
Hydraulic loading, stability and water quality of Nakivubo wetland, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: J Kyambadde F Kansiime L Gumaelius G DalhammarNakivubo wetland, which has performed tertiary water treatment for Kampala city for the past 40 years, is ecologically stressed by agricultural and infrastructural developments. Field studies were carried out to assess the hydraulic loading, pollution profile, stability and water quality... -
Phosphorus sorption characteristics of sediment in the Simiyu and Kagera River basins: implications for phosphorus loading into Lake Victoria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RA TamatamahAs part of a larger study to assess the influence of land use on riverine and atmospheric phosphorus (P) loading to Lake Victoria, P sorption characteristics of eight composite bottom sediment samples from the Simiyu and Kagera rivers were determined... -
Modelling highly variable daily maximum water temperatures in a perennial South African river system
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NicholasA Rivers-Moore CarelN Bezuidenhout GrahamPW JewittThirty-three months of observed hourly water temperatures were used to calculate daily maximum water temperatures for nine sites within the Sabie-Sand River system, Mpumalanga Province, South Africa. A suite of statistical models for simulating daily maximum water temperatures, of differing... -
Recommendations for the collection, preparation and enumeration of diatoms from riverine habitats for water quality monitoring in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JonathanC Taylor P Arno de la Rey Leon van RensburgDiatoms have become important organisms for monitoring freshwaters and their value has been recognised for cross-border water quality monitoring in the European Union. If South Africa is to include diatoms in the current suite of bioindicators, then thorough testing of... -
The impact of land use on water quality of the Lwiro River, Democratic Republic of Congo, Central Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M BagalwaThe water quality of the Lwiro River, Democratic Republic of Congo (DRC), Central Africa, was investigated on a monthly basis from December 1999–October 2000, at six stations along a hydraulic gradient from source to mouth, to evaluate the impact of... -
Bioassessment of the ecological integrity of river ecosystems using aquatic macroinvertebrates: an overview with a focus on South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DeanJ Ollis HelenF Dallas KarenJ Esler Charles BoucherAn overview is given of the bioassessment of the ecological integrity of river ecosystems using aquatic macroinvertebrates, focussing on the South African situation within a global context. Biotic indices and their use in aquatic bioassessment are covered, and comparative descriptions... -
Testing the applicability of the SASS5 scoring procedure for assessing wetland health: a case study in the KwaZulu-Natal midlands, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Rebecca Bowd DonovanC Kotze CraigD Morris NevilW QuinnA study was undertaken between 29th January and 17th February 2004 to test the applicability of the South African Scoring System Version 5 (SASS5) scoring and calculation procedure in nutrient-enriched palustrine wetlands in the midlands of KwaZulu-Natal, South Africa. Four... -
Physico-chemical conditions and macroinvertebrate fauna in the River Nile from Aswan to Cairo
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Reda Fishar R Thorne W Peter WilliamsThis paper examines the distribution of benthic macroinvertebrates in relation to physico-chemical conditions along 1 035km of the River Nile from Aswan High Dam to Al Kanater Barrage, Cairo. Total Dissolved Salts and several individual chemical variables showed positive linear... -
The South African Scoring System (SASS) Version 5 Rapid Bioassessment Method for Rivers
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: C WS Dickens --- , South Africa PM Graham --- , South AfricaThe assessment of biota in rivers is a widely recognised means of determining the condition or ‘health’ of rivers. Benthic macroinvertebrates, in particular, are recognised as valuable organisms for bioassessments, due largely to their visibility to the naked eye, ease... -
Anthropogenic spatial and temporal changes in the aquatic macro invertebrate assemblages of the lower Mvoti River, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Malherbe --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Centre for Aquatic Research, Department of Zoology, South Africa JHJ van Vuren --- Centre for Aquatic Research, Department of Zoology, South AfricaIndustrial and urban impacts on the lower reaches of the Mvoti River were studied using changes in macroinvertebrate community structures as indicators of environmental change. Macroinvertebrates were sampled during high- and low-flows in 2005 in the lower Mvoti River and... -
Water quality impacts on instream biota of the Shingwedzi River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PSO Fouche --- Department of Zoology, South Africa W Vlok --- Department of Zoology, South AfricaWater quality, macroinvertebrate diversity (using SASS5) and fish diversity (using the fish response assessment index) of the Shingwedzi River system were monitored in 2007/2008 to determine the present status of the system. Possible water pollution sources were identified by aerial... -
Optimum rabbit density over fish ponds to optimise Nile tilapia production in an integrated rabbit–fish system in Rwanda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: S Rukera Tabaro --- School of Environmental Science, South Africa O Mutanga --- School of Environmental Science, South Africa D Rugege --- School of Environmental Science, South Africa JC Micha --- Research Unit in Environmental Biology, Department of Biology, BelgiumAlthough previous studies have suggested that rabbit excreta can be used as high-quality manure for sustaining plankton production due to their gradual nutrient release, integrated rabbit–fish production systems are still not widely used. Between 2006 and 2010 optimal rabbit densities... -
Sublethal effects of carbaryl on embryonic and gonadal developments of zebrafish Danio rerio
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PK Mensah --- Department of Zoology, South Africa GH Okuthe --- Department of Zoology, South Africa M Onani --- Department of Chemistry, South AfricaCarbaryl is a broad-spectrum insecticide used to control insect pests. In aquatic environments, it can disrupt the endocrine system and adversely affect the reproductive function of aquatic animals. This study investigated sublethal impacts of carbaryl on embryos and gonads of... -
Application of the Lake Habitat Survey method on the tropical Malilangwe reservoir, south-eastern lowveld, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: T Dalu --- Department of Biological Sciences, Zimbabwe B Clegg --- , Zimbabwe T Nhiwatiwa --- Department of Biological Sciences, ZimbabweThe Lake Habitat Survey (LHS) method was developed to assess the ecological integrity of the physical habitat around lake and reservoir ecosystems, as well as to determine the magnitude of human pressure on lake systems. The LHS method has not... -
Characterisation of potential aquaculture pond effluents, and physico-chemical and microbial assessment of effluent-receiving waters in central Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: YB Ansah --- Department of Fish and Wildlife Conservation, USA EA Frimpong --- Department of Fish and Wildlife Conservation, USA S Amisah --- Department of Fisheries and Watershed Management, GhanaAn understanding of specific aquaculture systems and the impacts of their management practices leads to sound and cost-effective policies to protect the aquatic environment. Water samples were collected in 2009 from fish ponds, streams that receive effluents directly from ponds... -
Effect of feeding frequency and feeding rate on growth of Oreochromis mossambicus (Teleostei: Cichlidae) fry
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RW Luthada --- Department of Zoology, South Africa HL Jerling --- Department of Zoology, South AfricaThe effect of feeding frequency and feeding rate on growth of Oreochromis mossambicus fry was investigated over 30 d under temperature- and light-cycle-controlled conditions on the University of Zululand campus, South Africa, in October and November 2009. Weight gain, specific... -
The Influence of Short Rotation Forestry on Wood Production for Sawnwood and Veneer
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.P. Kromhout --- Department of Environment Affairs, D.L. Bosman --- Council for Scientific and Industrial Research,Short rotations for the production of saw and veneer logs range from 20 to 35 years during which logs of the required size and quality are produced provided that thinning and pruning regimes are meticulously adhered to. Early and regular... -
The Effect of Season on the Root Growth Capacity of One-Year-Old Pinus radiata Seedlings
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D. G.M. Donald --- ,The effect of season on the Root Growth Capacity (RGC) of conditioned Pinus radiata D.D. seedlings was tested for three years. Results indicate that although the species grows actively throughout the year there is still a marked seasonal fluctuation in... -
Variation in Wood Properties of Eucalyptus nitens in a Provenance Trial on the Eastern Transvaal Highveld in South Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.C. Purnell --- D.R. de Wet Forestry Research Centre,Eucalyptus nitens is one of the four important cold-tolerant eucalypts grown for mining timber and pulpwood on the eastern Transvaal highveld in South Africa. In 1983 an active genetic improvement programme was initiated to improve growth rate, stem form and... -
Could phosphorus concentrations increase with the development of cage culture in Lake Kariba, Zimbabwe?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Mhlanga --- Department of Biological Sciences, Zimbabwe W Mhlanga --- Department of Environmental Science, Zimbabwe P Mwera --- Lake Harvest, Zimbabwe P Tendaupenyu --- Department of Biological Sciences, ZimbabweA comparison between historical and current data was done to determine whether the concentrations of total phosphorus, orthophosphate and chlorophyll a, and Secchi disc transparency, have changed in the Sanyati Basin of Lake Kariba following the commencement of cage culture... -
Chironomid distribution along a pollution gradient in Ethiopian rivers, and their potential for biological water quality monitoring
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Beneberu --- Department of Biology, Ethiopia S Mengistou --- Zoological Sciences Programme Unit, Ethiopia H Eggermont --- Belgian Biodiversity Platform, Belgium D Verschuren --- Limnology Unit, Department of Biology, BelgiumWater pollution resulting from the rapidly intensifying use of freshwater resources in Ethiopia is increasing the need for continuous follow-up and monitoring of the country's aquatic ecosystems, in order to maintain their biological diversity and water quality. Chironomids (non-biting dipteran... -
WATER QUALITY MODELLING PERCEPTIONS OF A WATER RESOURCE MANAGEMENT ORGANIZATION
Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: H.D. Furness --- Scientific Services Division, South Africa W.N. Richards --- Scientific Services Division, South AfricaThe use of models by the South African water industry is discussed. It is suggested that climatic conditions and existing legislation have influenced the formulation of models. Future model requirements by the water Industry are outlined. Changes are suggested which... -
FUTURE CHALLENGES IN WATER QUALITY MODELLING WITH PARTICULAR REFERENCE TO OPERATIONALLY CLOSED CATCHMENTS
Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: S.F. Forster --- Department of Water Affairs, South Africa F.A. Stoffberg --- Department of Water Affairs, South Africa J.A. van Rooyen --- Department of Water Affairs, South AfricaAs a result of the declining quality of many water sources, the use of water quality models in planning is increasing. To date applications have involved the simulation of total dissolved salts and nutrients, largely in catchments affected by urban... -
Non-destructive sampling of juvenile abalone using epipodial tentacles and mucus: method and application
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Slabbert R Roodt-WildingGood-quality biological material is needed to obtain intact deoxyribonucleic acid (DNA) for use in molecular techniques such as the polymerase chain reaction (PCR). Non-destructive sampling protocols of juvenile abalone Haliotis midae (7–15 months old) were tested in order to collect... -
Surviving off junk: low-energy prey dominates the diet of African penguins Spheniscus demersus at Mercury Island, Namibia, between 1996 and 2009
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Ludynia --- Animal Demography Unit, Department of Zoology, South Africa J-P Roux --- Animal Demography Unit, Department of Zoology, South Africa R Jones --- Ministry of Fisheries and Marine Resources, Namibia J Kemper --- Ministry of Fisheries and Marine Resources, Namibia LG Underhill --- Animal Demography Unit, Department of Zoology, South AfricaThe diet of African penguins Spheniscus demersus in Namibia consisted mainly of sardine Sardinops sagax in the 1950s. Since the collapse of pelagic fish stocks in the 1970s, birds fed mainly on bearded (pelagic) goby Sufflogobius bibarbatus, a low-energy prey... -
Gender Earnings Disparity and Discrimination in Urban China: Unconditional Quantile Regression
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Yao Tang --- School of Sociology and Social Policy, UK Wenjin Long --- School of Sociology and Social Policy, UKMarket-oriented economic reform has gone through several key stages to bring substantial changes to the current Chinese economy. It accelerated after 1992, and ushered in the pattern transformation since ‘scientific development outlook’ raised in 2002. During this dramatic and complicated... -
Abnormal compression wood in Pinus taeda: A review of current knowledge and proposed future strategy
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: F.S. Malan --- Komatiland Forests (Pty) Ltd, Research Division, H.W. Kassier --- South African Forestry Company Ltd,Abnormal compression wood in P. taeda stands was first discovered in the early 1980s. Since then several research projects and surveys have been carried out in order to develop a better understanding of the problem and to try to find... -
Site and stand analysis for growth prediction of Eucalyptus grandis on the Zululand coastal plain
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: M. du Plessis --- , J Zwolinski --- ,The integration of site information with that of tree growth is of special importance in Zululand, where sustainable supply of timber is essential for local processing and export commitments. Site prediction growth models need to be based on easily attainable... -
The wood quality of the South African timber resource for high-value solid wood products and its role in sustainable forestry
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: F.S. Malan --- ,Maximising volume growth and yield per unit area is generally recognised as an important objective towards maintaining or enhancing forest productivity. However, the forest industry's future success will also be judged on how well it understands the qualities of the... -
Effect of planting depth on growth of open-rooted Pinus elliottii and Pinus taeda seedlings in the United States
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Curtis L. VanderSchaaf --- School of Forestry and Wildlife Sciences, and Alabama Agricultural Experiment Station, USA David B. South --- School of Forestry and Wildlife Sciences, and Alabama Agricultural Experiment Station, USAThree studies in the Coastal Plain of Georgia were remeasured 7 or 8 years after planting to determine the effects of planting depth on field performance of open-rooted seedlings [root-collar diameter (RCD) ≤ 5 mm]. Average planting depth (i.e, shoot... -
A review on the effects of donor maturation on rooting and field performance of conifer cuttings
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R.G Mitchell --- Sappi Forests Research, J. Zwolinski --- Forestry Programme, N.B. Jones --- Sappi Forests Research,The maturation and ageing effects of parent or donor plants have been reported to have both positive and negative influences on the performance of rooted cuttings. A general decline in rooting ability, root quality and speed of rooting in the... -
The effects of ontogenetic maturation in Pinus patula - Part 1: nursery performance
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R. G. Mitchell --- Sappi Forests Research, Africa J. Zwolinski --- Forestry Programme, Africa N. B. Jones --- Sappi Forests Research, AfricaThe age at which parent or donor hedges reach ontogenetic maturity has frequently been cited as a debilitating factor in the production of conifer cuttings. This point varies between species and prevailing environmental conditions. Among other things, a lack of... -
Some notes on the effect of wet-storage on timber
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: F.S. Malan --- Komatiland Forests Pty Ltd, AfricaThe storage of logs under water sprays has proved to be a highly effective method to preserve logs over prolonged periods against drying defects and infestation by staining fungi. Wet-storage has little effect on wood quality apart from some degradation... -
Oil yield and quality variation between sexes in Osyris lanceolata (African sandalwood) and its value as a fodder plant in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: PL Mwang’ingo --- Faculty of Science, Tanzania G Kibodya --- Faculty of Science, Tanzania AR Mng’ong’o --- , TanzaniaAfrican sandalwood (Osyris lanceolata) is widely harvested in East Africa for extraction of oil, which is used in the fragrance and perfumery industry. Over the years, harvesting of the species has been concentrated to female plants because it is claimed... -
Critical water stress levels in Pinus patula seedlings and their relation to measures of seedling morphology
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CA Rolando --- , New Zealand NW Pammenter --- , South Africa KM Little --- , South AfricaA pot trial was implemented to determine the effect of soil water stress following transplanting on shoot water potential and stomatal conductance of Pinus patula seedlings. The relationship of seedling morphology to measures of water stress was also investigated. The... -
Selection of Corymbia citriodora for pulp productivity
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JT Brawner --- , Australia R Meder --- , Australia M Dieters --- School of Land, Crop and Food Sciences, Australia DJ Lee --- , AustraliaEvaluation of a series of spotted gum (Corymbia citirodora) progeny trials, established in the subtropical region of Queensland, Australia, was undertaken to provide information for the development of advanced-generation breeding populations suitable for pulp production. Measurements of growth at two... -
Development of site index curves for Pinus kesiya in the Philippines
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: RIC Lumbres --- Department of Forest Resources, Korea YJ Lee --- Department of Forest Resources, Korea YO Seo --- Department of Forest Resources, Korea FG Calora --- , PhilippinesThis study was conducted to develop a height–age growth model and site index curves for site quality evaluation of old secondary-growth stands of Pinus kesiya in the northern Philippines. The Chapman-Richards growth function was used in the guide curve method... -
Genotypic variation in response to low boron in eucalypt clones
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: S Konsaeng --- Department of Plant Science and Natural Resources, Faculty of Agriculture, Thailand N Sritharathikhun --- Department of Plant Science and Natural Resources, Faculty of Agriculture, Thailand S Lordkaew --- Multiple Cropping Center, Faculty of Agriculture, Thailand B Dell --- Sustainable Ecosystem Research Institute, Australia B Rerkasem --- Plant Genetic Resource and Nutrition Laboratory, ThailandEucalypts are increasingly important in the tropics for meeting growing demand for timber, wood chips, paper pulp and biofuel. Many new plantations are planted on low boron (B) soils, with adverse effects on plant growth and productivity. Two experiments in... -
Site quality assessment of a Pinus radiata plantation in Victoria, Australia, using LiDAR technology
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Y Chen --- School of Geography and Environmental Science, Australia X Zhu --- School of Geography and Environmental Science, AustraliaThe aim of site quality assessment of Pinus radiata plantations is to determine the quality and productivity of the growing stock at different sites. It provides a useful indication of the site productivity to assist in the allocation of optimum... -
A review of management impacts on the soil productivity of South African commercial forestry plantations and the implications for multiple-rotation productivity
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Louis Titshall --- Institute for Commercial Forestry Research, South Africa Steven Dovey --- Institute for Commercial Forestry Research, South Africa Diana Rietz --- Institute for Commercial Forestry Research, South AfricaAn overview of southern African research that has investigated the impact of management practices that can potentially affect the long-term site productivity of plantations is presented, with an emphasis of these impacts on soil productivity and with the implications for... -
Dynamic base-age invariant site index models for Tectona grandis in peninsular India
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Vindhya P Tewari --- Institute of Wood Science and Technology, India Juan G Álvarez-González --- Unidad de Gestión Forestal Sostenible, Departamento de Ingeniería Agroforestal, Spain Klaus von Gadow --- Burckhardt Institute, GermanyData from 27 remeasured sample plots were used to evaluate dynamic base-age invariant site index models for teak (Tectona grandis) forests in Karnataka, India. The data were obtained in observational field studies covering a wide range of sites in Karnataka... -
HIV- and AIDS-related (mis)perceptions and (non)responses of school principals in the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lesley Wood Paul WebbDespite various HIV and AIDS training programmes offered for educators by the South African Department of Education, little has been achieved at the level of management in terms of creating a wider understanding of the social and cultural complexities of... -
Water quality in South African temporarily open/closed estuaries: a conceptual model
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GavinC Snow Susan TaljaardOf the five types of estuaries found in South Africa, temporarily open/closed estuaries comprise approximately 70% of the total. This paper provides an overview and a simple conceptual model of the water quality features and characteristics of temporarily open/closed estuaries... -
Trends analysis relating to pollution in Sakumo Lagoon, Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Ruby Asmah Hedrick Dankwa CA Biney CC AmankwahSakumo Lagoon, situated near Accra, is a Ramsar-listed coastal wetland threatened by urban and agricultural waste, being located in an urban area where access to domestic and waste disposal facilities is a major problem. The aim of this study was... -
Preliminary assessment of oestrogenic activity in water sources in Rietvlei Nature Reserve, Gauteng, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NH Aneck-Hahn MS Bornman C de JagerA preliminary assessment was made of oestrogenic activity in water sources in the Rietvlei Nature Reserve, from which water is supplied to the metropolitan area of Pretoria. Single samples were extracted from seven sites using a solid phase C18 cartridge... -
A preliminary benthic macroinvertebrate index of biotic integrity (B-IBI) for monitoring the Moiben River, Lake Victoria Basin, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FO Masese PO Raburu M MuchiriA Benthic Index of Biotic Integrity (B-IBI) was developed for the Moiben River. The index assesses effects of human disturbance on the biotic condition of stream macroinvertebrate communities. Eight stations were selected to represent different land-use types including forestry, settlement,... -
Haematological characteristics of African bony tongue, Heterotis niloticus (Teleostei: Arapaimidae), in south-western Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EO Ayotunde OA Fagbenro BO OffemHaematological characteristics — including red and white blood cells counts, haemoglobin, haematocrit, mean cell haemoglobin concentration, mean cell volume, mean cell haemoglobin, protein, glucose, albumin, sodium, chloride, potassium, magnesium and phosphorus — were established from an examination of 25 adult... -
Macroinvertebrate assemblages as biological indicators of water quality in the Moiben River, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FO Masese M Muchiri PO RaburuBenthic macroinvertebrate assemblages at eight stations in the Moiben River, corresponding to different catchment land uses, were assessed in 2006 as indicators of water quality. The relative abundance per taxon, diversity index, richness index, evenness, dominance, percentage of five dominant... -
Community participation in river monitoring using diatoms: a case study from the Buffelspoort Valley Conservancy
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: J Taylor --- School of Environmental Sciences and Development (Botany Division), South Africa N Pope --- , South Africa L van Rensburg --- School of Environmental Sciences and Development (Botany Division), South AfricaThis study was undertaken to determine the present ecological state of rivers and streams in the Buffelspoort Valley Conservancy (BVC), against which later potential changes in, and impacts on, water quality could be measured. After very brief training, all field... -
Kikuyu over-sown with ryegrass and clover: dry matter production, botanical composition and nutritional value
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: PR Botha R Meeske HA SnymanThe seasonality of growth and low nutritional value of kikuyu (Pennisetum clandestinum) pasture restrict milk production. The aim of the study was to determine the dry matter yield, botanical composition and nutritional value of irrigated kikuyu over-sown with annual ryegrass... -
Forage–cattle relationships in a communally managed semi-arid savanna in northern Zululand, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: CC Nyamukanza PF Scogings NW KuneneDevelopment of extensive livestock production in KwaZulu-Natal is constrained by seasonal variability of rangeland production and low forage nutritional quality. A three-year study was implemented to determine the seasonal variation in herbaceous biomass and chemical composition of veld, animal weight,... -
Influence of mineral composition and rumen degradability of Atriplex nummularia (Hatfield Select F1) plants on selection preference of sheep
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: WA van Niekerk --- Department of Animal and Wildlife Sciences, South Africa Abubeker Hassen --- Department of Animal and Wildlife Sciences, South Africa LD Snyman --- Department of Animal and Wildlife Sciences, South Africa NFG Rethman --- Department of Plant Production and Soil Science, South Africa RJ Coertze --- Department of Animal and Wildlife Sciences, South AfricaThis study examined intraspecific variation in mineral composition and rumen degradability of Atriplex nummularia plants and the influence on selection preferences of sheep. Individual plants were categorised into high, medium and least preference groups by assessing the order in which... -
Effect of temperature on cone bursting, seed extraction and germination in five provenances of Pinus roxburghii from Garhwal Himalaya in India
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: SK Ghildiyal CM Sharma S GairolaPinus roxburghii (chir pine or long-needle pine) is considered to be a fire-hardy species. In this study the effect of a wide range of elevated temperatures (from 40 °C to 150 °C) on cone bursting and subsequent seed germination was... -
Steroid hormone concentrations and physiological toxicity of water from selected dams in Namibia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AK Faul --- Department of Biological Sciences, Namibia E Julies --- Department of Biological Sciences, Namibia EJ Pool --- Department of Medical Biosciences, South AfricaNamibia is a semi-arid to arid country and has most of its surface water in dams built on ephemeral rivers. Whilst water quality is often measured in terms of bacterial contamination and general physico-chemical characteristics, this study extends water quality... -
Improving the Use of Lipid-lowering Drugs at Brits Hospital
Item type: Journal Article • Journal: South African Family Practice • Authors: C Van Deventer --- Brits Hospital, C Mokhlele --- Brits Hospital, J Hugo --- Family Medicine, Medunsa,Background When it was found by the Brits Hospital Pharmacy and Therapeutics Committee (PTC) in 2000 that simvastatin was responsible for extremely high costs in a district hospital, it was decided to undertake a quality improvement study to assess and,... -
Caring, learning, improving quality and doing research: Different faces of the same process
Item type: Journal Article • Journal: South African Family Practice • Authors: GJO Marincowitz --- Department of Family Medicine and Primary Care, Limpopo Province Unit, GS Fehrsen --- Department of Family Medicine and Primary Care,The aim of this article is to describe the similarities between the consultation process, the quality improvement (QI) process, action-and problem-based learning and participatory action research (PAR). We feel this understanding adds value to our work in enabling personal development... -
Is quality control useful? An audit of the saving measures regarding prescriptions at National District Hospital in Bloemfontein
Item type: Journal Article • Journal: South African Family Practice • Authors: H Dippenaar --- Department of Family Medicine,Background: This is a follow-up study to evaluate and improve quality health care for the majority of the population in Bloemfontein. The aim of this study was to evaluate the changes implemented to address the cost of prescribing drugs at... -
Encouraging reflective practice
Item type: Journal Article • Journal: South African Family Practice • Authors: T Gibbs --- College of Medicine and Medical Sciences, Arabian Gulf University, Bahrain D Brigden --- Faculty of Health Sciences, UK D Hellenberg --- Faculty of Health Sciences,As busy practitioners it becomes commonplace to look back over the day's professional activities. All too often, and despite a preponderance of positive interactions, the reflective eye reviews the negative aspects of daily activity and interrupts the intended social relaxation... -
Quality of pharmaceutical print advertising in South Africa—assessment of reproductive health advertisements 2001–2005
Item type: Journal Article • Journal: South African Family Practice • Authors: A Shaw [AN0001] AL Gray --- Department of Therapeutics and Medicines Management,Background: Pharmaceutical advertising, in a variety of forms, has been shown to influence prescribing behaviour. Regulatory systems have therefore been concerned with the quality of advertising and compliance with either imposed or self-regulatory codes of practice. Although the South African... -
Evaluation of the clinical management of HIV-infected patients by private sector doctors in the eThekwini Metro, KwaZulu-Natal
Item type: Journal Article • Journal: South African Family Practice • Authors: P Naidoo --- School of Pharmacy and Pharmacology, TM Esterhuizen --- Programme of Biostatistics, Research Ethics and Medical Law, CC Jinabhai --- Department of Public Health Medicine, M Taylor --- Department of Public Health Medicine,Background: Although private sector doctors are the backbone of treatment service in many countries, caring for patients with HIV entails a whole new set of challenges and difficulties. The few studies done on the quality of care of HIV patients,... -
Patient satisfaction with the quality of care in a primary health care setting in Botswana
Item type: Journal Article • Journal: South African Family Practice • Authors: AR Bamidele --- Extension II Clinics, Botswana ME Hoque --- Department of Public Health, Faculty of Health Care Sciences, South Africa H Van der Heever --- Department of Public Health, Faculty of Health Care Sciences, South AfricaBackground: Primary health care involves a sustained partnership between patients and providers that addresses the majority of a population's health needs over time. Patients' perception of satisfaction is an aspect of healthcare quality that is being increasingly recognised for its... -
The value of pimecrolimus in improving quality of life of children with severe eczema—an open non-randomised study
Item type: Journal Article • Journal: South African Family Practice • Authors: O Kitchin --- Department of Paediatrics and Child Health, Division of Paediatric Pulmonology, R Masekela --- Department of Paediatrics and Child Health, Division of Paediatric Pulmonology, T Moodley --- Department of Paediatrics and Child Health, Division of Paediatric Pulmonology, R Green --- Department of Paediatrics and Child Health, Division of Paediatric Pulmonology,Background: Atopic eczema is a common skin condition. It has the potential to severely impair quality of life in affected children. Pimecrolimus is currently registered for mild-moderate eczema but in clinical practice children with more severe disease are often treated... -
Does health-related quality of life in asthma patients correlate with the clinical indices?
Item type: Journal Article • Journal: South African Family Practice • Authors: OA Oni --- McNeal PL, USA GE Erhabor --- Faculty of Clinical Sciences, Nigeria PO Oluboyo --- Department of Pulmonary Medicine, Faculty of Health Sciences, South AfricaBackground: Assessment of health-related quality of life (HRQOL) has been shown to be more relevant to patients who have chronic diseases such as asthma, as achieving the best possible quality of life is the paramount objective in the management of... -
End-user centeredness in antiretroviral therapy services in Nigerian public health facilities
Item type: Journal Article • Journal: South African Family Practice • Authors: RJ Chiegil --- Department of Health Studies, LI Zungu --- Department of Health Studies, K Jooste --- School of Nursing, University of Western Cape,Objective: To describe the perception of end users with regard to end-user centeredness in antiretroviral therapy (ART) service provision in Nigerian public health facilities. -
Audit of antenatal care at a community health centre in Tshwane North subdistrict, Gauteng province
Item type: Journal Article • Journal: South African Family Practice • Authors: V Horner --- South African Medical Research Council, PGD Rautenbach --- Community Health Department, TJ Mashamba --- Obstetrics and Gynaecology Department, N Mbananga --- LINK Centre, S Olorunju --- Biostatistics Unit, T Ramahlo --- Midwife, H Kwinda --- Elim Hospital,Objective: Few studies document the level of compliance with antenatal care protocols in primary health care in South Africa. The aim of this study was to conduct an audit of antenatal care at a community health centre in Tshwane North... -
An assessment of quality of care service provided to people living with HIV/AIDS by a secondary healthcare centre at Osogbo, Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: SA Olowookere --- Community Health, Nigeria JO Olaitan --- Biological Sciences, Nigeria NA Adeleke --- Obstetrics and Gynaecology, Nigeria PB Olaitan --- Surgery Ladoke Akintola University of Technology Teaching Hospital, Nigeria EG Adepoju --- Preventive Services, NigeriaObjective: The objective of this study was to assess the quality of service provided to people living with human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) at a secondary healthcare centre at Osogbo, Nigeria. -
Review of final-year medical students' rural attachment at district hospitals in KwaZulu-Natal: student perspectives
Item type: Journal Article • Journal: South African Family Practice • Authors: P Diab --- Department of Rural Health, PD McNeill --- Centre for Rural Health, AJ Ross --- Department of Family Medicine,Objectives: This study aimed to investigate the views of students involved in rural community-based medical attachments during their final year at medical school. The programme has been in existence for some time, but no formal evaluation thereof has yet taken... -
Hospital reform and staff morale in South Africa: a case study of Dr Yusuf Dadoo Hospital
Item type: Journal Article • Journal: South African Family Practice • Authors: OJ Ibeziako --- Department of Family Medicine, ON Chabikuli --- Department of Family Medicine, S Olorunju --- Biostatistics Unit, Medical Research Council of South Africa,Objectives: This study explored major factors that influenced staff motivation at a district hospital in South Africa following hospital reforms and comparison of these factors across the two main staff categories. -
Communication and quality service delivery in Uganda's local government: the mediating influence of total quality management
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ibrahim A. Musenze --- Makerere University Business School, J.C. Munene --- Makerere University Business School, Joseph M. Ntayi --- Makerere University Business School, Waswa Balunywa --- Makerere University Business School,The study aimed at understanding the role of total quality management (TQM) as a mediator between communication and quality service delivery (QSD) in Uganda's local government (LGs). Data were collected using a cross-sectional research design from 212 LGs whose heads... -
Sheet metal productivity improvement through a new press brake design
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: N Gwangwava --- Department of Industrial Engineering, South Africa K Mpofu --- Department of Industrial Engineering, South Africa N Tlale --- Department of Industrial Engineering, South Africa Y Yu --- College of Mechanical and Electrical Engineering, ChinaA new press brake design proposed as a reconfigurable bending press machine (RBPM) is reported. The design is a means of increasing sheet metal bending productivity. Conventional press brakes are dedicated machines with fixed capacity, but the RBPM has characteristics... -
Developing and implementing global gender policy to reduce HIV and AIDS in low- and middle -income countries: Policy makers’ perspectives
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Shannon Olinyk --- University of Michigan Columbus, USA Andrew Gibbs --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Catherine Campbell --- Institute of Social Psychology, London School of Economics and Political Science, UKGender inequalities have been recognised as central to the HIV epidemic for many years. In response, a range of gender policies have been developed in attempts to mitigate the impact and transform gender relations. However, the effects of these policies... -
Confronting stereotypes in the fishing industry in post-apartheid South Africa: A case study of women on the West Coast in the Western Cape, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sharon Groenmeyer --- Centre for the Study of Democracy, South AfricaDrawing on research conducted in fish processing and allied industries, the women in this study engage in shoreline activities collecting mussels, red bait, shellfish, seaweed; catching crayfish and fish or cleaning fish and mending nets. Women's role in fishing is... -
Murder and the whole city
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kelly Gillespie --- Department of Anthropology, South AfricaHenri Lefebvre's The Urban Revolution makes a claim for the importance of seeing the whole urban form in our analyses of cities. He argues that we too often get trapped into a view of the urban that prioritises “fragments” of... -
Do SASS5 scores vary with season in the South African highveld? A case study on the Skeerpoort River, North West province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HE Fourie --- Department of Zoology and Entomology, South Africa C Thirion --- Department of Water Affairs: Resource Quality Services, South Africa CW Weldon --- Department of Zoology and Entomology, South AfricaMacroinvertebrate assemblages can vary with season as a result of changing environmental conditions and phenology of individual species. The objective of this study was to determine whether results from the South African Scoring System version 5 (SASS5) are affected by... -
Consumption of sachet water in Nigeria: quality, public health and economic perspectives
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: David O. Omole --- Department of Civil Engineering, South Africa Julius M. Ndambuki --- Department of Civil Engineering, South Africa Kehinde Balogun --- Department of Civil Engineering, NigeriaDemand for drinking water is met by different methods in different parts of the world. Water packaging into polyethylene sachets (as a form of water vending) has assumed an innovative status which has spread from its origin in Nigeria to... -
Plankton dynamics associated with the convergence zone of a shear front in the permanently open Kowie Estuary, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: M. Kruger --- Department of Ichthyology and Fisheries Science, South Africa N. A. Strydom --- Department of Zoology, South AfricaEstuarine frontal systems are thought to play an important role in plankton accumulations in estuaries. However, knowledge surrounding these estuarine circulation patterns is not clear, and consensus regarding the importance of fronts has yet to be reached. A full appraisal... -
Predictors of quality of life enjoyment and satisfaction in individuals living with HIV and AIDS in a resource-constrained setting in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kim Jonas --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Pamela Naidoo --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Nicolette Vanessa Roman --- Faculty of Community and Health Sciences, South Africa Luis Angel Saúl Gutiérrez --- Facultad de Psicología, UNED, Guillem Feixas --- University of Barcelona, SpainThe burden of HIV disease is concentrated in sub-Saharan Africa, particularly in South Africa (SA). Whilst there have been many studies conducted on the biomedical and socio-psychological aspects of HIV and AIDS, insufficient attention has been paid to the quality... -
Support for volunteer caregivers and its influence on the quality of community home-based care in the Eastern Cape, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: David Morton --- Department of Nursing Science, South Africa Thoko Mayekiso --- Vice Chancellor's Office, University of Mpumalanga, South Africa Peter Cunningham --- Department of Sociology and Anthropology, South AfricaThe factors influencing the quality of community home-based care (CHBC) were explored from the perspective of volunteer caregivers, their clients and key informants in a South African Eastern Cape district. Focus group discussions and semi-structured interviews were used to collect... -
Effect of potassium and potting-bag size on foliar biomass and related attributes and oil composition of rose geranium (Pelargonium graveolens)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Zenzile P Khetsha --- Unit for Drug Discovery Research, Department of Agriculture, South Africa Moosa M Sedibe --- Unit for Drug Discovery Research, Department of Agriculture, South AfricaThis study was conducted to evaluate the effect of four concentrations of potassium (K; 1.3, 3.3, 5.3 and 7.3 mmol L−1) and two potting-bag sizes (5 and 10 L) on foliar biomass and related attributes and oil composition of rose... -
Reproductive biology of the critically endangered tropical tree Talbotiella gentii
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Daniel Dompreh --- Department of Plant and Soil Science, UK Michael D Swaine --- Department of Plant and Soil Science, UK Christopher C Wilcock --- Department of Plant and Soil Science, UKTalbotiella gentii is a critically endangered caesalpiniaceous legume endemic to Ghana, restricted in distribution to the margins of the forest zone where there has been extensive fire damage in recent decades. It occurs as isolated, near-monospecific populations, some of which... -
The electronic voting machine: a continuous process of achieving quality
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Manik Kher --- Department of Interdisciplinary Studies in Humanities and Social Sciences, IndiaThe mandatory use of electronic voting machines in the Indian electoral process has brought about a sea change in making the elections free, fair, eco-friendly and cost effective. This paper discusses how through continuous improvement and stringent quality checks the... -
Are you being fooled? Quality of earnings and quality of government
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: A Riahi-Belkaoui --- University of Illinois at Chicago,This study investigates empirically the impact of the quality of earnings of major listed firms on the quality of government in a large cross-section of countries. It evaluates government performance using measures of six dimensions of governance, namely, voice and... -
Audit firm rotation and audit report: evidence from the Tehran Stock Exchange
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Saman Mohammadi --- Department of Accounting, Iran Mohammad Monfared Maharlouie --- Master of Accounting, Iran Sepideh Kazemi Noori --- Financial Management, IranThis research is an attempt to study the relationship between audit firm rotation and audit reports in companies listed on the Tehran Stock Exchange from 2003 to 2011. Due to the nominal nature of the variables, this study uses a... -
Quality Control in Smaller Audit Practices
Item type: Journal Article • Journal: De Ratione • Authors: K. Dilton-Hill --- University of the Witwatersrand,An AICPA peer review checklist was modified to determine the extent of compliance with auditing standards on 68 audit engagements spread over 12 smaller audit firms. A quality control checklist was completed by each firm to identify the quality control... -
Joint degrees and engaging with a Europe of Knowledge: lessons from a UK perspective of a challenging collaborative endeavour
Item type: Journal Article • Journal: • Authors: Jan Katherine Bamford --- Creative Industries, Faculty of Business and Law, London Metropolitan University, London, UKInternational joint degrees offer the possibility of internationalising the curriculum, enhancing intercultural skills for both staff and students and enhancing global job opportunities. This paper examines the challenges for staff and institutions engaging in developing a ‘Europe of Knowledge’ by offering a... -
The evaluation of career-oriented dialogues in a social constructivist learning environment
Item type: Journal Article • Journal: • Authors: Hanneke Assen --- Stenden University of Applied Sciences, Leeuwarden, The Netherlands Wichard Zwaal --- Stenden University of Applied Sciences, Leeuwarden, The NetherlandsThis study explored career-oriented dialogues between study career coaches (SCCs) and first-year students in a social constructivist learning environment. Four types of orientation in career-oriented dialogues were identified: action, evaluation, analysis and design. Additionally, the type of dialogue, the topics... -
Quality assessment in small businesses: the case of Dutch culinary restaurants
Item type: Journal Article • Journal: • Authors: Sjoerd Gehrels --- Stenden University of Applied Sciences, Rengerslaan 8, 8917 DD Leeuwarden, The Netherlands Berry Dumont --- Fletcher Hotel and Restaurant Kasteel Ehrenstein, Oud-Erensteinerweg 10, 6468 PC Kerkrade, The NetherlandsResearch material on quality definitions in the specific small business segment of culinary restaurants is scarce. Defining quality in culinary restaurant small businesses deserves increased attention in order to further develop professionalism within this segment. For this research nine Dutch... -
Seasonal dry matter production, botanical composition and forage quality of kikuyu over-sown with annual or perennial ryegrass
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Janke van der Colf --- Department of Plant Production and Soil Science, South Africa Philip R Botha --- Western Cape Department of Agriculture, South Africa Robin Meeske --- Western Cape Department of Agriculture, South Africa Wayne F Truter --- Department of Plant Production and Soil Science, South AfricaThe seasonal growth and low forage quality of kikuyu restrict milk production. The aim of this study was to determine the yield and nutritional value of irrigated kikuyu over-sown with perennial, Italian or Westerwolds ryegrass grazed by dairy cows. The... -
Preventing venous thromboembolism at a district hospital: a quality improvement study
Item type: Journal Article • Journal: South African Family Practice • Authors: Bernhard G Beutel --- , South Africa Louis S Jenkins --- Division of Family Medicine and Primary Health Care, Faculty of Health Sciences, South AfricaBackground: Pulmonary embolism (PE) is the most common preventable cause of hospital deaths, and almost all hospitalised patients have at least one risk factor for venous thromboembolism (VTE). Despite the availability of highly effective thromboprophylaxis in preventing VTE, numerous studies... -
The nature of quality of life in residential care facilities: the case of White older South Africans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lizanlé van Biljon --- Africa Unit for Transdisciplinary Health Sciences, South Africa Vera Roos --- Africa Unit for Transdisciplinary Health Sciences, South AfricaThis study describes the nature of quality of life (QoL) from the perspective of older South Africans (n = 41) in residential care facilities (female = 75%; age range 62–95 years). The residents participated in individual in-depth interviews and focus groups. They also... -
Quality of working life and commitment amongst employees in public organisations in Ghana: does job involvement matter?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Oluyinka Ojedokun --- School of Research and Postgraduate Studies, South Africa Erhabor Sunday Idemudia --- School of Research and Postgraduate Studies, South Africa Mercy Desouza --- Department of Psychology, GhanaThis study tested a mediation model of job involvement to predict organisational commitment from quality of work life. A total of 137 workers employed in two public organisations participated in the study (males = 52.6%, females = 47.4%, junior staff = 67.9%, senior staff = 32.1%, age range... -
Performance and design optimisation of an apparatus for distilling palm wine (Elaeis guineensis) by controlling thermal operations
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Clément Ahouannou --- Laboratory of Applied Mechanics and Energy, Polytechnic School of Abomey-Calavi, Benin Fidèle Tchobo --- Laboratory Study and Research in Applied Chemistry, Polytechnic School of Abomey-Calavi, Benin Emile A. Sanya --- Laboratory of Applied Mechanics and Energy, Polytechnic School of Abomey-Calavi, Benin Christa Lokossou --- Laboratory Study and Research in Applied Chemistry, Polytechnic School of Abomey-Calavi, Benin Mohamed Soumanou --- Laboratory Study and Research in Applied Chemistry, Polytechnic School of Abomey-Calavi, BeninMastery of thermal control in the craft distillation processing operations of fermented wine from Elaeis guineensis is needed to improve and enhance the resulting Beninese alcoholic drink, sodabi. In this study, craft distillation of palm-wines from three municipalities of southern... -
Quality of care and cost of prescriptions for diabetes and hypertension at primary healthcare facilities in the Cape Town Metropole
Item type: Journal Article • Journal: South African Family Practice • Authors: A Isaacs --- Metro District Health Services, Western Cape; Division of Family Medicine, Faculty of Health Sciences, South Africa N Manga --- Division of Family Medicine, Faculty of Health Sciences, South Africa C Le Grange --- Division of Family Medicine, Faculty of Health Sciences, South Africa DA Hellenberg --- Division of Family Medicine, Faculty of Health Sciences, South Africa V Titus --- Metro District Health Services, Western Cape; Division of Family Medicine, Faculty of Health Sciences, South Africa R Sayed --- Division of Family Medicine, Faculty of Health Sciences, South AfricaBackground: Quality of care for diabetes mellitus and hypertension has been found to be suboptimal at primary health care level. There is an expectation that improving quality will require the increased utilisation of resources. This research was intended to determine... -
Effect of heat stress on seed yield components and oil composition in high- and mid-oleic sunflower hybrids
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Rouxléne van der Merwe --- Department of Plant Sciences, South Africa Maryke T Labuschagne --- Department of Plant Sciences, South Africa Liezel Herselman --- Department of Plant Sciences, South Africa Arno Hugo --- Department of Microbial, Biochemical and Food Biotechnology, South AfricaHigh temperature stress is a major environmental factor influencing processes such as growth, yield and quality of crops. The objective of this study was to assess the effect of heat stress, applied during grain-filling, on seed yield- and oil quality... -
Ecosystem-specific water quality indices
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Rangeti --- Department of Community Health Studies, South Africa B Dzwairo --- Institute for Water and Wastewater Technology, South Africa GJ Barratt --- Department of Community Health Studies, South Africa FAO Otieno --- Technology, Innovation and Partnerships, South AfricaThe water quality index (WQI) has emerged as a central tool for analysing and reporting quality trends since 1965. It provides a better overview of water quality variability in a catchment than conventional monitoring programmes that use individual variables. Since... -
Application of multivariate statistics and toxicity indices to evaluate the water quality suitability for fish of three rivers in the Kruger National Park, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: R Gerber --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Unit for Environmental Sciences and Management, South Africa NJ Smit --- Unit for Environmental Sciences and Management, South AfricaThe water quality of the Olifants, Letaba and Luvuvhu rivers within the Kruger National Park was assessed for their suitability to sustain fish populations. Since water quality assessments result in huge datasets, principal component analysis and an aquatic toxicity index... -
An evaluation of the weight of evidence approach to assess sediment quality in the Mvoti Estuary, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BF Shaddock --- Department of Zoology, South Africa V Wepener --- Water Research Group, Unit for Environmental Sciences and Management, South AfricaA weight of evidence approach was evaluated in the Mvoti Estuary, which is affected by point and non-point sources of contaminants. Four sites were sampled in 2005 and assessed along the standard sediment quality triad lines of evidence: sediment chemistry,... -
Impact of land use on water quality in the Likangala catchment, southern Malawi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Pullanikkatil --- Department of Geography and Environmental Sciences, South Africa LG Palamuleni --- Department of Geography and Environmental Sciences, South Africa TM Ruhiiga --- Department of Geography and Environmental Sciences, South AfricaIn southern Malawi, the Likangala River, which is important for irrigation, domestic use and fishing, is affected by various land uses along its catchment. The impact of urbanisation and agriculture on the water quality of this river was investigated in... -
Anthropologist to activist: Paul Farmer's changing perspectives on cultural difference and human rights
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Hanne Jensen Haricharan --- Department of Social Anthropology,This paper outlines shifting perspectives in Paul Farmer's work with regard to cultural difference and human rights. It describes Farmer's critique of medical anthropology's focus on culture to the detriment of economic factors, and his critique of cultural relativism being... -
Social models of HIV risk among young adults in Lesotho
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicola L. Bulled --- Center for Global Health, USAExtensive research over the past 30 years has revealed that individual and social determinants impact HIV risk. Even so, prevention efforts focus primarily on individual behaviour change, with little recognition of the dynamic interplay of individual and social environment factors... -
Translation and validation of the EORTC QLQ-CX24 questionnaire into the indigenous African languages of
isiXhosa and AfrikaansItem type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: G C Du Toit --- Unit of Gynaecological Oncology, Tygerberg Hospital, University of Stellenbosch, D G Nel --- Centre for Statistical Consultation, University of Stellenbosch,Objectives: Quality of life (QOL) assessment plays an important role in oncological clinical practice and research settings when evaluating treatment outcome. Cervical cancer remains a prevalent disease in South African women. The current study translated the European Organisation for Research... -
Contextual quality of life of HIV-positive patients with cervical carcinoma at Tygerberg Hospital
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: G C Du Toit --- Unit of Gynaecological Oncology, Tygerberg Hospital; University of Stellenbosch, M Kidd --- Centre for Statistical Consultation; University of Stellenbosch,Objective: In South Africa, the majority of cervical carcinoma cases present when they are in the advanced stage. Concomitant HIV/AIDS further compromise patient health. Data on the impact of HIV/AIDS on the quality of life of cases with advanced cervical... -
ART patients’ satisfaction level regarding comprehensive HIV and AIDS care management and antiretroviral treatment programme in pretoria
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Mmbangiseni Magoro --- Gauteng Hospital, Department of Health, Muhammad Hoque --- Department of Public Health, Hendry van der Heever --- Department of Public Health,The purpose of this cross- sectional study was to investigate patients’ satisfaction levels regarding access to, and quality of, comprehensive human immunodefciency virus (HIV) and acquired immune defciency syndrome (AIDS) care management and antiretroviral treatment programme (CCMT). A total of... -
Cross-cultural adaptation of the 12-Item Short-Form survey instrument in a Moroccan representative Survey
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Majdouline Obtel --- Directorate of Epidemiology and Diseases Control, Ministry of Health, Morocco Karima El Rhazi --- Department of Epidemiology, Clinical Research and Community Health, Morocco Samira Elhold --- Department of Respiratory Diseases, Morocco Mohammed Benjelloune --- Department of Respiratory Diseases, Morocco Louisa Gnatiuc --- Respiratory Epidemiology and Public Health, Imperial College, Chakib Nejjari --- Department of Epidemiology, Clinical Research and Community Health, MoroccoThe health survey, the 12-Item Short-Form (SF-12) survey instrument, was developed as a shorter alternative to the SF-36 for use in scale studies. The aim of our study was to adapt this instrument into Moroccan Arabic and to examine its... -
Influence of energy saving on the quality of lighting services on selected hotels in Mpumalanga, Republic of South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: F. Machete --- Department of Environmental Health, South Africa C. Hongoro --- Health Research and Policy, South Africa G. Nhamo --- Institute of Corporate Citizenship, University of South Africa, South Africa K. Mearns --- Department of Environmental Sciences, South AfricaThis paper presents the results of an investigation undertaken on the influence of energy saving on the quality of lighting services on selected hotels in Mpumalanga, one of the nine provinces of the Republic of South Africa. This paper adopted... -
Hotel quality in the European Capital of Culture: Leeuwarden 2018
Item type: Journal Article • Journal: • Authors: Sjoerd Gehrels --- Stenden Academy of International Hospitality Research, Leeuwarden, The Netherlands Thomas Landen --- Revinate, Amsterdam, The NetherlandsThis research looks into the experience as perceived in 2014 by hotel guests in 15 bigger Dutch cities. The hotel reviews of Leeuwarden (Capital of Culture 2018) are compared to those of hotels in the other cities to provide an initial... -
Modelling dominant height growth in plantations of Pseudotsuga menziesii (Mirb.) Franco in Spain
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos A López-Sánchez --- Instituto de Silvicultura e Industria de la Madera, México Juan G Álvarez-González --- Departamento de Ingeniería Agroforestal, Escuela Politécnica Superior, Spain Ulises Diéguez-Aranda --- Departamento de Ingeniería Agroforestal, Escuela Politécnica Superior, Spain Roque Rodríguez-Soalleiro --- Departamento de Producción Vegetal, Escuela Politécnica Superior, SpainA model for predicting dominant height growth and site index of Pseudotsuga menziesii (Mirb.) Franco in Spain was constructed. Data from stem analysis of 117 site trees were used. Four dynamic equations using the algebraic difference approach (ADA) and its... -
Embodied urban health and illness in Cape Town: children's reflections on living in Symphony Way Temporary Relocation Area
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Efua Prah --- Department of Anthropology and Sociology, South AfricaThis paper explores ideas about health and illness held by six children who live in the Symphony Way Temporary Relocation Area in Cape Town, South Africa. The research shows that solutions to illness and health problems held by low-income populations... -
Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Abong'o --- Department of Chemistry, School of Physical Sciences, Kenya SO Wandiga --- Department of Chemistry, School of Physical Sciences, Kenya IO Jumba --- Department of Chemistry, School of Physical Sciences, Kenya PJ Van den Brink --- Aquatic Ecology and Water Quality Management Group, The Netherlands BB Naziriwo --- Department of Chemistry, Uganda VO Madadi --- Department of Chemistry, School of Physical Sciences, Kenya GA Wafula --- Department of Chemistry, School of Physical Sciences, Kenya P Nkedi-Kizza --- Soil and Water Science Department, USA H Kylin --- Department of Water and Environmental Studies, SwedenA baseline study was conducted of the occurrence of macroinvertebrates at 26 sites in the Nyando River catchment in 2005–2006. A total of 13 orders and 16 families of Arthropoda, Mollusca, Platyhelminthes and Annelida were collected, with the order Ephemeroptera... -
Open Source as a viable technical resource for Nigeria's developing health system
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ogochukwu Eburuoh --- Department of Computer Science, USAThis article provides an in-depth analysis into the usefulness of Open Source Electronic Health Recording Systems for Nigeria's struggling health care system. It critiques the present quality of care received by patients, while advocating a revised education and management infrastructure... -
Appraisal of access to safe drinking water in southwest Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Adedayo A. Badejo --- Civil Engineering Department, Faculty of Engineering and the Built Environment, South Africa Julius M. Ndambuki --- Civil Engineering Department, Faculty of Engineering and the Built Environment, South Africa Williams K. Kupolati --- Civil Engineering Department, Faculty of Engineering and the Built Environment, South Africa Adebola A Adekunle --- Civil Engineering Department, College of Engineering, Nigeria Solomon A. Taiwo --- Civil Engineering Department, College of Engineering, Nigeria David O. Omole --- Civil Engineering Department, Faculty of Engineering and the Built Environment, South AfricaThe importance of developing effective water supply services is universally recognised as a basis for improving the overall health of the population. This study ascertained the quality of water supplied by a water treatment scheme in southwest Nigeria. One hundred... -
Intergroup contact experience and frequency as predictors of cross-racial attitudes
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Elirea Bornman --- Department of Communication Science, South AfricaThis study examined the relationships between contact frequency, experiences of intergroup contact and a number of demographic intergroup variables. A telephone survey was conducted among 544 blacks (57.5% male; 42.5% female) and 478 whites (44.6% male; 55.4% female). Three CHAID... -
Home-based rehabilitation interventions for adults living with HIV: a scoping review
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Saul Cobbing --- Department of Physiotherapy, South Africa Jill Hanass-Hancock --- Health Economics and HIV/AIDS Research Division (HEARD), University of KwaZulu-Natal, Hellen Myezwa --- Department of Physiotherapy, South AfricaHome-based rehabilitation (HBR) has been shown to improve the lives of people living with a wide range of chronic diseases in resource-rich settings. This may also be a particularly effective strategy in resource-poor settings, where access to institution-based rehabilitation is... -
Apparent digestibility and microbial protein yield of Desmodium uncinatum, Mucuna pruriens and Vigna unguiculata forage legumes in goats
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Simbarashe Katsande --- Department of Animal Science, School of Agriculture, South Africa Joseph J Baloyi --- Department of Animal Science, School of Agriculture, South Africa Florence V Nherera-Chokuda --- Agricultural Research Council, South Africa Nobbert T Ngongoni --- Faculty of Agriculture, Zimbabwe Gift Matope --- Paraclinical Department of Veterinary Sciences, Zimbabwe Plaxedis I Zvinorova --- Paraclinical Department of Veterinary Sciences, Zimbabwe Jacob Gusha --- Paraclinical Department of Veterinary Sciences, ZimbabweThis study examined the effects of adding forage legumes as protein supplements to poor-quality natural pasture (veld) hay offered to goats on microbial protein yield and nitrogen metabolism. Four indigenous Nguni-type goats were used in a 4×4 Latin cross-over design... -
Distribution and ecological risks of polychlorinated biphenyls (PCBs) in surface sediment of the Forcados River, Niger Delta, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CMA Iwegbue --- Department of Chemistry, NigeriaConcentrations of Σ15 PCBs in sediments of the Forcados River, Nigeria, were determined in 2012 to provide information on the profile, sources and ecotoxicological risks of PCBs in the sediment. The screening concentrations of PCBs were quantified using a gas... -
Field evaluation of deficit irrigation effects on tomato growth performance, water-use efficiency and control of parasitic nematode infection
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Osama Mohawesh --- Department of Plant Production, JordanTwo field experiments were conducted using a common tomato cultivar (GS12) to assess the effect of deficit irrigation (DI) regimes on tomato growth performance, and on root-knot nematode Meloidogyne javanica galling and abundance. Irrigation treatments consisted of five irrigation regimes:... -
Variation of physico-chemical parameters along a river transect through the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MJ Gondwe --- University of Botswana, Okavango Research Institute, Botswana WRL Masamba --- University of Botswana, Okavango Research Institute, BotswanaThe Okavango Delta depends on water quantity and quality to sustain its ecosystem services. Whereas many studies have been carried out on its hydrology, few have been done on water quality in the delta. Water pH, electrical conductivity (EC), dissolved... -
Nutritional status, quality of life and CD4 cell count of adults living with HIV/AIDS in the Ga-Rankuwa area (South Africa)
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: E. Venter --- Division of Human Nutrition, Faculty of Health Sciences, Gj Gericke --- Department of Human Nutrition, Faculty of Health Sciences, Pj Bekker --- Biostatistics Unit, South AfricaObjective: To determine if there was a relationship between CD4 cell count, nutritional status and self-reported quality of life (QoL) in HIV-infected adults. -
The intake and quality of breakfast consumption in adolescents attending public secondary schools in the North West province, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: L. Tee --- Centre of Excellence for Nutrition, C. Botha --- Centre of Excellence for Nutrition, R. Laubscher --- Biostatistics Unit, J. Jerling --- Centre of Excellence for Nutrition,Objectives: The objectives of the study were to determine the proportion and quality of breakfast intake in adolescents, and to determine the effect of breakfast intake and quality on overall diet quality. -
Inequalities in scholarly knowledge: Public value failures and their impact on global science
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Thema Monroe-White --- SageFox Consulting Group, USA Thomas S. Woodson --- Department of Technology and Society, USAThere is a growing body of literature that acknowledges the overall trends in publication patterns in the least economically advantaged countries. The pattern shows that there are disparities between the Global North and Global South with regard to indexed publication... -
Physical activity and psychosomatic-related health problems as correlates of quality of life among university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Stefan Kruger --- Tourism Research in Economic Environs and Society (TREES), Energy Sonono --- ‘Workwell’, South AfricaThis study aimed to investigate the role of psychosomatic problems in the relationship between physical activity and healthrelated quality of life. Participants were a convenience sample of 703 students from a South African university (males = 38.8%, females = 61.2%,... -
Effects of land-use changes on benthic macroinvertebrate assemblages in the tropical Umfurudzi River, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: T Bere --- Chinhoyi University of Technology, Zimbabwe G Chiyangwa --- Chinhoyi University of Technology, Zimbabwe T Mwedzi --- Chinhoyi University of Technology, ZimbabweThe responses of benthic macroinvertebrates to land-use-induced changes in water quality and habitat because of contrasting land-use types along the Umfurudzi River, Zimbabwe, were investigated in 2013. Five stations in a communal area upstream of Umfurudzi National Park, four on... -
Efficacy and deficiencies of rapid biomonitoring in biodiversity conservation: a case study in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HM Barber-James --- Department of Freshwater Invertebrates, South Africa LL Pereira-da-Conceicoa --- Department of Zoology and Entomology, South AfricaRapid biomonitoring protocols, using biotic indices based on macroinvertebrate diversity to assess river ecosystem health, are widely used globally. Such quick assessment techniques are lauded for the rapid results obtained and the relatively easy protocol used to achieve an answer... -
Storage quality and marketability potential of bagged silage for smallholder dairy farmers in Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Prisca H Mugabe --- Department of Animal Science, Zimbabwe Rigison Nyashanu --- Department of Animal Science, Zimbabwe Sharai Ncube --- Department of Animal Science, Zimbabwe Venancio E Imbayarwo-Chikosi --- Department of Animal Science, Zimbabwe Shephard Siziba --- Department of Agricultural Economics and Extension, Zimbabwe Barbara V Maasdorp --- Department of Crop Science, ZimbabweBagged sole maize and maize–cowpea silages in three bag sizes were assessed at 42 and 282 d post-ensiling for sensory and chemical quality. A survey of dairy farmers on silage use and preferences was conducted in the Chikwaka communal area... -
A reflection on the practical implementation of the clinical governance framework in the Cape Winelands District of the Western Cape
Item type: Journal Article • Journal: South African Family Practice • Authors: Colette Gunst --- , South Africa Robert J Mash --- Department of Family Medicine and Primary Care, South Africa Lizette Cathleen Phillips --- , South AfricaPrimary health care is seen as the ‘linchpin of effective health care delivery’ by the Western Cape Government Health services and improving the quality of primary care, through clinical governance, is a key aspect of realising this vision. This article... -
Water quality of the Luvuvhu River and its tributaries within the Thulamela Local Municipality, Limpopo Province, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mpho Monyai --- Department of Environmental Sciences, South Africa Rudzani A. Makhado --- Department of Environmental Sciences, South Africa Ntshenge O. Novhe --- Council for Geoscience, South AfricaThe study was conducted during dry and wet periods at the Luvuvhu River and its tributaries within the Thumalamela Local Municipality, Limpopo Province, South Africa. A total of 50 samples (25 per sampling session) were collected for physicochemical analysis at... -
Harmful cyanobacteria and their cyanotoxins in Egyptian fresh waters – state of knowledge and research needs
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ZA Mohamed --- Department of Botany and Microbiology, Faculty of Science, EgyptCyanobacterial blooms have increased in freshwater ecosystems worldwide in the last century, mostly resulting from eutrophication and climate change. These blooms represent serious threats to environmental and human health because of the production of harmful metabolites, called cyanotoxins. Like many... -
Quality assessment in small businesses: the case of Dutch culinary restaurants
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sjoerd Gehrels --- Stenden University of Applied Sciences, The Netherlands Berry Dumont --- Fletcher Hotel and Restaurant Kasteel Ehrenstein, The NetherlandsResearch material on quality definitions in the specific small business segment of culinary restaurants is scarce. Defining quality in culinary restaurant small businesses deserves increased attention in order to further develop professionalism within this segment. For this research nine Dutch... -
The evaluation of career-oriented dialogues in a social constructivist learning environment
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Hanneke Assen --- Stenden University of Applied Sciences, The Netherlands Wichard Zwaal --- Stenden University of Applied Sciences, The NetherlandsThis study explored career-oriented dialogues between study career coaches (SCCs) and first-year students in a social constructivist learning environment. Four types of orientation in career-oriented dialogues were identified: action, evaluation, analysis and design. Additionally, the type of dialogue, the topics... -
Joint degrees and engaging with a Europe of Knowledge: lessons from a UK perspective of a challenging collaborative endeavour
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Jan Katherine Bamford --- Creative Industries, Faculty of Business and Law, UKInternational joint degrees offer the possibility of internationalising the curriculum, enhancing intercultural skills for both staff and students and enhancing global job opportunities. This paper examines the challenges for staff and institutions engaging in developing a ‘Europe of Knowledge’ by... -
Hotel quality in the European Capital of Culture: Leeuwarden 2018
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sjoerd Gehrels --- Stenden Academy of International Hospitality Research, The Netherlands Thomas Landen --- , The NetherlandsThis research looks into the experience as perceived in 2014 by hotel guests in 15 bigger Dutch cities. The hotel reviews of Leeuwarden (Capital of Culture 2018) are compared to those of hotels in the other cities to provide an... -
Real-world lessons from the hospitality expert
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Robert Bosma --- Mind Your Guest, and Mind Your Brand, The NetherlandsThis article by Robert Bosma gives an insight in the world of hospitality in the real world and his vision about what hospitality is, how it works successfully and why people find it so important to be treated in a... -
Employees’ perspectives of service quality in hotels
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Mukhles M. Al-Ababneh --- Department of Hotel and Tourism Management, JordanAlthough the importance of service quality has been recognised, few studies have addressed service quality in hotels from the perspective of employees. Therefore, this study aims to measure the service quality of four and five-star hotels in Jordan from the... -
Perceived control effects on religiosity and quality of life among young adults
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Matthew O. Olasupo --- School of Research and Postgraduate Studies, South Africa Erhabor S. Idemudia --- School of Research and Postgraduate Studies, South AfricaThe study investigated the mediating role of perceived control in the association between religiosity and quality of life among young adults in south-west Nigeria. Data were collected from a sample of 1 050 young adults (mean age = 29.8, SD... -
Optimal management of children on antiretroviral therapy (ART) in primary care: a quality improvement project
Item type: Journal Article • Journal: South African Family Practice • Authors: Claire van Deventer --- Department of Family Medicine and Rural Health, South Africa Lauren Golden --- WRHI, South Africa Erica du Plessis --- District Clinical Specialist Team, Dr Kenneth Kaunda District, South Africa Carien Lion-Cachet --- Department of Family Medicine and Rural Health, South AfricaIntroduction: With the large volumes of human immunodeficiency virus (HIV) positive patients in South Africa, one clinical management strategy has been to task shift. This means that previously hospi-centric HIV services have devolved to primary health care (PHC) clinics. The... -
Improving voluntary medical male circumcision standards adherence and post-procedure follow-up in Uganda: A mixed methods study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sarah Smith Lunsford --- EnCompass LLC, USA John Byabagambi --- University Research Co., LLC, Uganda Zachariah Falconer-Stout --- EnCompass LLC, USA Esther Karamagi --- University Research Co., LLC, UgandaVoluntary medical male circumcision (VMMC) has been demonstrated to reduce the transmission of HIV by 60%. Scaling up VMMC services requires that they be of high quality, socially accepted, and effective. We evaluated an intervention aimed at improving VMMC standards... -
Nutritional quality of baby spinach (
Spinacia oleracea L. ) as affected by nitrogen, phosphorus and potassium fertilisationItem type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Bongekile O Zikalala --- Department of Agriculture and Animal Health, South Africa Mpumelelo Nkomo --- Department of Agriculture and Animal Health, South Africa Hintsa Araya --- Agricultural Research Council–Roodeplaat Vegetable and Ornamental Plant Institute, South Africa Wonder Ngezimana --- Marondera College of Agricultural Sciences and Technology, Zimbabwe Fhatuwani N Mudau --- Department of Agriculture and Animal Health, South AfricaBaby spinach is a nutritious vegetable rich in phytochemicals and minerals. Cultural practices such as fertilisation have an impact on the nutritional composition of vegetables. Hence, the current study investigated the responses of the chemical composition of baby spinach to... -
Managing and improving data quality through the adoption of data warehouse in the public sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Edzai Kademeteme --- Department of Informatics, South Africa Billy Mathias Kalema --- Department of Informatics, South Africa Pieter Pretorius --- Department of Informatics, South AfricaThe increasing use of technology in organizations has resulted in burgeoning sizes of data, a wider variety of data sources and diverse data structure, all calling for better storage, retrieval and analytics. The increasing demands that data make on organizations,... -
Pathological vestibular symptoms presenting in a group of adults with HIV/AIDS in Johannesburg, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Katijah Khoza-Shangase --- Department of Speech Pathology and Audiology, South Africa Kayla Jade Van Rie --- Department of Speech Pathology and Audiology, South AfricaAim: The current study aimed to explore the pathological vestibular symptoms presenting in a group of adults with HIV/AIDS in Johannesburg, South Africa. -
The potential of NIRs as a non-destructive post-harvest quality assessment tool for ‘Triumph’ persimmon fruit
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Pesanai Zanamwe --- Department of Botany and Biotechnology, South AfricaThe potential of near-infrared spectroscopy (NIRs) as an alternative non-destructive post-harvest quality assessment tool for ‘Triumph’ persimmon fruit was assessed. Fruits were harvested at four stages of maturity and each stage was replicated four times. Fruit quality was assessed at... -
Assessment of water quality in selected shallow wells of Keiyo Highlands, Kenya
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Peter K. Mbaka --- Department of Civil, Construction and Environmental Engineering, Kenya John K. Mwangi --- Department of Civil, Construction and Environmental Engineering, Kenya Clement K. Kiptum --- Department of Civil and Structural Engineering, KenyaA supply of potable water is important for the sustenance of a healthy population. This study was conducted in the Keiyo Highlands, Elgeyo Marakwet County, in Kenya. The aim was to assess seasonal variation in physico-chemical and microbiological water quality... -
Seasonality in the cross section of factor premia
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adam Zaremba --- Department of Investment and Capital Markets, PolandThis study examines the seasonality effect in the cross section of factor premia representing a broad set of stock market strategies. Using cross-sectional and time-series tests, we investigated the cross-sectional seasonality of market, value, size, momentum, quality and low-risk premia... -
Optimal grazing management strategies: evaluating key concepts
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Richard WS Fynn --- Okavango Research Institute, University of Botswana, Botswana Kevin P Kirkman --- Grassland Science, South Africa Riaan Dames --- , NamibiaRangeland management strategies must be based on robust ecological and economic concepts if they are to be effective and profitable. Thus, the aim of this paper was to examine concepts related to grazing and resting of grassland and associated effects... -
The ecological integrity of the Lower Olifants River, Limpopo province, South Africa: 2009–2015 – Part A: Olifants River main stem
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Marr --- South African Institute for Aquatic Biodiversity, South Africa TD Mohlala --- SAEON Ndlovu Node, Kruger National Park, South Africa A Swemmer --- SAEON Ndlovu Node, Kruger National Park, South AfricaThe major rivers of the South African ‘Lowveld’ (low-latitude savanna) suffer numerous impacts from upstream economic activities. Whereas monitoring these rivers is required to detect biodiversity losses, record pollution events and devise mitigation strategies, current monitoring programmes are inadequate. In... -
The ecological integrity of the lower Olifants River, Limpopo province, South Africa: 2009–2015 – Part B: Tributaries of the Olifants River
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Marr --- South African Institute for Aquatic Biodiversity, South Africa TD Mohlala --- SAEON Ndlovu Node, Kruger National Park, South Africa A Swemmer --- SAEON Ndlovu Node, Kruger National Park, South AfricaMonitoring on the Lowveld reaches of the Olifants River, Limpopo River System, and its Steelpoort, Blyde, Klaserie and Selati tributaries was initiated in 2009. Analysis of the 2009–2015 data from four Olifants River sites showed deterioration in the river’s ecological... -
Physico-chemical water characteristics and aquatic macroinvertebrates of Lake Tsimanampesotse, south-western Madagascar
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JR Rasoloariniaina --- Centre National de Recherches sur l’Environnement (CNRE), MadagascarSaline lakes are known to be amongst the most productive ecosystems in the world. Tsimanampesotse, a ‘conservation hotspot’ soda lake in southwestern Madagascar, was integrated into the Ramsar wetland network in 1998. Despite its importance for aquatic birds, knowledge of... -
Cadres and compatriots: An analysis of their good lives as presented by Top Billing
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Brandaan Huigen --- Institute of Social and Cultural Anthropology, Free University of Berlin, GermanyTop Billing is a South African lifestyle show, aired by the national broadcaster, the South African Broadcasting Corporation. The show promotes the “good life,” covering the lifestyles of wealthy South Africans. Segments on mansions and especially weddings are the most... -
Wasted wines
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Elize Koldenhof --- Alumni International Hospitality Management, The Netherlands Femke Vrenegoor --- International Hospitality and Service Management, The NetherlandsThis paper reports on a management project, a fourth-year research project at Stenden Hotel Management School, dedicated to reducing wine waste at Landgoedhotel de Wilmersberg in De Lutte (the Netherlands). To do this, the beverage cost percentages were explored for... -
Water quality assessment of the Siluko River, southern Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: IP Oboh --- Department of Animal and Environmental Biology, Faculty of Life Sciences, Nigeria CS Agbala --- Department of Animal and Environmental Biology, Faculty of Life Sciences, NigeriaThe water quality of the Siluko River, Edo State, Nigeria was investigated from March to August 2015 to determine its suitability for drinking and usage for domestic purposes. Water samples collected from three stations were tested for thirteen physico-chemical parameters... -
Improving the performance of the EPT Index to accommodate multiple stressors in Afrotropical streams
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FO Masese --- Department of Fisheries and Aquatic Sciences, Kenya PO Raburu --- Department of Fisheries and Aquatic Sciences, KenyaThe EPT index (Ephemeroptera, Plecoptera and Trichoptera) may be skewed by the wide tolerance to multiple stressors of the Baetid, Caenid and Hydropsychid families, which affects the performance of the EPT index as an indicator of multiple stressors in aquatic... -
Love matters: exploring conceptions of love in Rwanda and Swaziland and relationship to HIV and intimate partner violence
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Allison Ruark --- Department of Medicine, USA Erin Stern --- Department of Global Health and Development, UK Thandeka Dlamini-Simelane --- Institute for Health Measurement, Swaziland Marie Fidele Kakuze --- Independent Consultant, SwazilandHealth risks such as intimate partner violence (IPV) and HIV infection often occur within intimate sexual relationships, yet the study of love and intimacy is largely absent from health research on African populations. This study explores how women and men... -
Gendered childcare norms — evidence from rural Swaziland to inform innovative structural HIV prevention approaches for young women
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Pinky N Shabangu --- Independent community-based researcher, Swaziland Michelle R Brear --- Faculty of Medicine Nursing and Health Sciences, Jean Hailes Research Unit, School of Public Health and Preventive Medicine, AustraliaAddressing discriminatory gender norms is a prerequisite for preventing HIV in women, including young women. However, the gendered expectation that women will perform unpaid childcare-related labour is rarely conceptualised as influencing their HIV risk. Our aim was to learn from... -
Evaluating oat cultivars for dairy forage production in the central Kenyan highlands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Solomon W Mwendia --- Centro Internacional de Agricultura Tropical, Tropical Forages, Kenya Brigitte L Maass --- Centro Internacional de Agricultura Tropical, Tropical Forages, Kenya David G Njenga --- International Fertilizer Development Center, Kenya Fridah N Nyakundi --- Centro Internacional de Agricultura Tropical, Biometrics, Kenya An Maria O Notenbaert --- Centro Internacional de Agricultura Tropical, Tropical Forages, KenyaWith the projected increase in future demand for animal products, efforts to raise animal productivity are necessary to match the rise. Already, the estimated per-capita milk consumption in Kenya has increased to 150 L from 100 L estimated in 1998... -
Utilization of shea fruit to enhance food security and reduce poverty in Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Esther Gyedu-Akoto --- New Product Development Unit, Ghana Frederick Amon-Armah --- Social Science and Statistics Unit, Cocoa Research Institute of Ghana, Ghana Daniel Yabani --- New Product Development Unit, GhanaThe shea tree grows extensively in the northern part of Ghana, which is known to be one of the poorest areas in the country. To help reduce poverty and enhance food security in this area, attempts were made to add... -
Weight-related quality of life in obese, pregnant women in South Africa
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MA Tisane --- Department of Obstetrics & Gynaecology, South Africa JL Van der Merwe --- Department of Obstetrics & Gynaecology, South Africa DR Hall --- Department of Obstetrics & Gynaecology, South AfricaObjective: The global obesity pandemic includes pregnant women. Obesity may negatively impact quality of life (QOL). A validated, obesity-specific, QOL assessment tool was used to assess the impact of obesity on five specific domains. -
Primary Health Care in South West Nigeria: Evaluating service quality and patients' satisfaction
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Omoseni O. Adepoju --- School of Management Technology, Nigeria Zacheus Opafunso --- School of Management Technology, Nigeria Modupe Ajayi --- School of Management Technology, NigeriaPrimary health care (PHC) is a fundamental, cost-effective approach in delivering essential healthcare services to achieve quality life for all. This study assesses service quality and patient satisfaction in the PHC sector in South West Nigeria. A multi-stage sampling approach... -
The ‘new’ bricks-and-mortar store: An evaluation of website quality of online grocery retailers in BRICS countries
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alicia Neva Weber --- Department of Entrepreneurship, Supply Chain, Transport, Tourism and Logistics Management, South Africa Johanna Adolphina Badenhorst-Weiss --- Department of Entrepreneurship, Supply Chain, Transport, Tourism and Logistics Management, South AfricaBackground: Online grocery retailing holds potentially fruitful outcomes for retailers and consumers. However, both retailers and consumers have been slow to adopt and participate in this form of grocery retailing, especially in countries with emerging economies such as those in... -
Use of diatom indices to categorise impacts on and recovery of a floodplain system in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: R Musa --- Department of Zoology, South Africa R Greenfield --- Department of Zoology, South AfricaThe trophic status of the Ramsar-accredited Nyl River floodplain, which is stressed by sewage treatment effluents, and its ability to restore normal conditions, were assessed in 2014–2015 using diatoms as biological indicators. The Trophic Diatom Index, Specific Pollution Sensitivity Index... -
PAHs, OCPs and PCBs in sediments from three catchments in Durban, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: T Vogt --- Unit for Environmental Sciences and Management, South Africa R Pieters --- Unit for Environmental Sciences and Management, South Africa BK Newman --- Coastal Systems Research Group, Council for Scientific and Industrial Research, South AfricaPolycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were analysed from sediment samples collected in 2012 from rivers, surface runoff canals and estuaries in three highly urbanised catchments in durban, KwaZulu-Natal, South Africa. PAHs were ubiquitous, at... -
Location and crop-year effects on sugarcane genotype performance for the coastal short cycle breeding programmes in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sphamandla Sengwayo --- South African Sugarcane Research Institute, South Africa Marvellous Zhou --- South African Sugarcane Research Institute, South Africa Maryke Labuschagne --- Department of Plant Sciences, South AfricaGenotypes are tested in several environments to evaluate the influence of genotype × environment interactions prior to their release as cultivars. The objective of this study was to determine location and crop-year effects and their implications on coastal short cycle... -
Trends in broad-sense heritability and predicted selection gains for the coastal short cycle breeding sugarcane programmes in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sphamandla Sengwayo --- South African Sugarcane Research Institute, South Africa Marvellous Zhou --- South African Sugarcane Research Institute, South Africa Maryke Labuschagne --- Department of Plant Sciences, South AfricaCoastal short cycle breeding programmes develop early maturing sugarcane cultivars adapted to harvesting at 12 months under rainfed conditions. Genotypes progressed to the advanced cultivar stage from these programmes are merged and evaluated concurrently in multi-environment trials across the region... -
Quality Assurance of Business Management Education in Africa: A Review of Current Systems and Recommendations for Quality Enhancements
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Eunice V. Akoto --- School of Business, USA Edward O. Akoto --- School of Business, USAQuality assurance systems – the collections of policies, procedures, and practices for achieving and maintaining quality – are critical to ensuring the relevance and effectiveness of business and management education in Africa. Currently, stakeholders may assess the quality of business... -
Development and validation of the isiZulu quality of recovery score
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Sikhakhane --- Department of Anaesthesia, South Africa B Kusel --- Department of Anaesthesia, South Africa RN Rodseth --- Metropolitan Department of Anaesthetics, Critical Care and Pain Management, South AfricaBackground: Recovery from anaesthesia and surgery is an important marker of the quality of perioperative care. One extensively validated score in assessing this is the Quality of Recovery–15 items (QoR-15) score. This study aimed to translate the QoR-15 score into... -
Allergic rhinitis in medical students at the University of the Free State
Item type: Journal Article • Journal: South African Family Practice • Authors: RY Seedat --- Department of Otorhinolaryngology, Faculty of Health Sciences, South Africa M Sujee --- School of Medicine, Faculty of Health Sciences, South Africa W Ismail --- School of Medicine, Faculty of Health Sciences, South Africa NY Vallybhai --- School of Medicine, Faculty of Health Sciences, South Africa MI Cassim --- School of Medicine, Faculty of Health Sciences, South Africa S Khan --- School of Medicine, Faculty of Health Sciences, South Africa A Solwa --- School of Medicine, Faculty of Health Sciences, South Africa G Joubert --- Department of Biostatistics, Faculty of Health Sciences, South AfricaBackground: Allergic rhinitis, the most common form of chronic rhinitis, can adversely affect quality of life. The prevalence of allergic rhinitis in adolescents in South Africa has been estimated to be 38.5%, but there is a paucity of data from... -
The relationship between existential attitudes and professional quality of life among nursing students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Directorate of Higher Education Development and Support, South AfricaThis study examined the relationship between existential attitudes and professional quality of life among a sample of South African nursing students (N = 150; mean age = 21.19, SD = 2.77; female = 90%). The student nurses completed the Life... -
Poverty as a barrier to antiretroviral therapy access for people living with HIV/AIDS in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Markus Haacker --- Harvard TH Chan School of Public Health, USA Charles Birungi --- UNAIDS, BotswanaUnderstanding barriers to access to essential health services is critical for devising effective strategies to improve access and align such strategies with national health and development policy objectives. However, while considerable empirical evidence exists on correlates of HIV prevalence and... -
The impact of internal service quality on job satisfaction in the hotel industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Mukhles M. Al-Ababneh --- Department of Hotel and Tourism Management, Jordan Mousa A. Masadeh --- Department of Hotel and Tourism Management, Jordan Firas J. Al-Shakhsheer --- Department of Hotel and Tourism Management, Jordan Ma’moun A. Habiballah --- Department of Hotel and Tourism Management, JordanService quality is a key factor for success in any hotel. Many researchers have conducted studies on service quality, but only a few studies have been conducted on internal service quality (ISQ) in general, and in the hotel industry in... -
Neo-liberalism and neo-slavery
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Conrad Lashley --- Hospitality Studies, Academy of International Hospitality Research, The NetherlandsLow pay and other minimal benefits at work cause some people to be in a state of neo-slavery. They are nominally free individuals and are not the property of others, but their economic standing and power is so limited that... -
Knowledge and quality-management activities’ influences on technology communication and innovation with African foreign investment experience
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bong-ihn Seok --- Commercialisation Planning Team, South Korea Man-pil Han --- Department of Business Administration, South Korea Joon-ho Kim --- Department of Business Administration, South KoreaWe examined how psychic distance moderates the association of South Korean chief executive officers’ (CEOs’) knowledge and quality management with their predisposition to invest in African technology and innovation markets. Participants were current and prospective South Korean African business investment... -
Relationships of water temperature and aquatic macroinvertebrate community structure with non-native riparian plant densities in the southern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NA Rivers-Moore --- Centre for Water Resources Research, South Africa HF Dallas --- Freshwater Research Centre, South Africa, and Nelson Mandela Metropolitan University, South Africa FC de Moor --- Albany Museum and Department of Zoology and Entomology, South Africa J Barendse --- Sustainability Research Unit/South African National Parks, South AfricaNon-native vegetation in the riparian zone impacts on water temperatures, flow patterns, degree of shading, channel modification, and changes to natural sediment loads. Freshwater ecosystems in the Garden Route Initiative planning domain are of particular conservation value, because of the... -
Concentrations and ecological risks of metals in surface sediments of some coastal creeks in the Niger Delta, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CMA Iwegbue --- Department of Chemistry, Nigeria OV Beecroft --- Department of Chemistry, Nigeria JE Ogala --- Department of Geology, Nigeria FE Egobueze --- Environment Department, Nigeria GO Tesi --- Department of Chemistry, Nigeria GE Nwajei --- Department of Chemistry, Nigeria BS Martincigh --- School of Chemistry and Physics, South AfricaThe concentrations of nine metals were measured by atomic absorption spectrophotometry in surface sediments of three coastal creeks, namely, the Ifie, Egbokodo and Ubeji creeks, in the Niger Delta of Nigeria, from August 2012 to January 2013. The aim of... -
Human development thresholds for inclusive mobile banking in developing countries
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Simplice A. Asongu --- Department of Economics, South Africa Nicholas M. Odhiambo --- Department of Economics, South AfricaThis study assesses human development thresholds at which mobile banking mitigates poverty and inequality in 93 developing countries for the year 2011. Mobile banking entails ‘mobile used to pay bills’ and ‘mobile used to receive/send money’, while the modifying policy... -
Physico-chemical water quality characteristics of upper Ebonyi River, Enugu State, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NO Nweze --- Department of Plant Science and Biotechnology, Nigeria EC Eze --- Department of Plant Science and Biotechnology, NigeriaThe physico-chemical characteristics of upper Ebonyi River, Nigeria were assessed at four locations, from September 2014 to December 2014, using standard methods, thereby providing information for documentation and the determination of pollution status in comparison with World Health Standards. Parameters,... -
Physico-chemical and Water Quality Index analysis of the Okhuaihe River, Edo State, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NK Egun --- Greenspring Consulting, Nigeria CU Ogiesoba-Eguakun --- Department of Animal and Environmental Biology, NigeriaThe water quality of the Okhuaihe River, Edo State, Nigeria was investigated from February to June 2016 to determine its suitability for drinking and other domestic purposes. Water samples collected from three stations were tested for fifteen physico-chemical parameters using... -
Adult malnutrition: prevalence and use of nutrition-related quality indicators in South African public-sector hospitals
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Esmarie van Tonder --- Department of Dietetics, School of Lifestyle Science, South Africa Lynn Gardner --- Department of Health, Health Centre, South Africa Saskia Cressey --- Department of Health, South Africa Reinette Tydeman-Edwards --- Department of Health, South Africa Karin Gerber --- Nursing Science Department, South AfricaObjectives: The aim of this study was to describe the prevalence of malnutrition among adult hospitalised patients in three South African public hospitals and to determine the availability of nutrition-related quality indicators at ward and institutional level. -
Improved parameters of Pinus greggii seedling growth and health after inoculation with ectomycorrhizal fungi
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rebeca Casique Valdés --- Department of Horticulture, Mexico Rosalinda Mendoza Villarreal --- Department of Horticulture, Mexico Fernando Galindo García --- Department of Horticulture, Mexico Susana González Morales --- Department of Horticulture, Mexico Sergio Sanchez Peña --- Department of Parasitology, MexicoPinus greggii Engelm. ex Parl. is an endemic pine of Mexico with notorious adaptability to eroded, shallow and poor soils. It is widely used in reforestation programmes worldwide. The purpose of the present study is to develop an ectomycorrhizal fungi... -
When less is more: heterogeneity in grass patch height supports herbivores in counter-intuitive ways
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Rina CC Grant --- Department of Zoology, South Africa Judith Botha --- Scientific Services Kruger National Park, South Africa Thelani C Grant --- Faculty of Animal and Wildlife Science, South Africa Mike JS Peel --- Agricultural Research Council–Animal Production, South Africa Izak PJ Smit --- Scientific Services Kruger National Park, South AfricaHerbivores are an integral part of the African landscape and have evolved with the vegetation to create the savanna landscape. Managers of these landscapes can benefit from a better understanding of how indigenous herbivores use the landscape to which they... -
Long-term effects of pig slurry application on selected soil quality parameters and tissue composition of maize in a subhumid subtropical environment
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Tichaedza J Chikuvire --- School of Agricultural Earth and Environmental Sciences, South Africa Pardon Muchaonyerwa --- School of Agricultural Earth and Environmental Sciences, South Africa Rebecca Zengeni --- School of Agricultural Earth and Environmental Sciences, South AfricaEffects of long-term application of pig slurry (PS) on soil organic carbon (SOC) pools, nutrients and maize tissue composition under continuous conventional tillage in a maize–soyabean rotation system in subhumid subtropical environments are unclear. The soil and plant parameters have... -
Influence of retailers’ website system quality factors on online shopping in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Yu-Ting Hung-Joubert --- Department of Marketing and Retail Management, Cindy Erdis --- Department of Marketing and Retail Management,Online shopping, which has grown significantly over the years, has become a popular form of shopping. To succeed, it is important that online retailers ensure that their shopping websites function well and adhere to all aspects of system quality. The... -
Development and evaluation of a cardiac coherence index for sleep analysis
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Patrick Celka --- SATHeart SA, Rue Galilée, Yverdon-les-Bains, Switzerland Niclas Granqvist --- SATHeart SA, Rue Galilée, Yverdon-les-Bains, Switzerland Herbert Schwabl --- SATHeart SA, Rue Galilée, Yverdon-les-Bains, Switzerland Stephen D. Edwards --- Psychology Department, South AfricaCardiac coherence measurement is an established technology in biofeedback systems for stress release. Studies have typically been conducted with participants during ordinary waking consciousness, yet cardiac coherence during sleep may be even more important in illness prevention and health promotion... -
Diaphragm wall and piles set record in Africa: Foundation for Africa’s largest suspension bridge in Mozambique
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joern Seitz --- GAUFF GmbH & Co. Engineering KG, Mozambique/Germany Bai Pengyu --- CRBC China Road and Bridge Corporation, China Wang Gang --- CRBC China Road and Bridge Corporation, ChinaAs part of the master plan for the infrastructure of the road network in the southern Africa area, a suspension bridge is being built in Maputo, Mozambique. The bridge over the Maputo Bay has an open span of 680 m between... -
Effect of Seed Tuber Planting Depth and Nitrogen Rate on Yield and Yield Related Traits of Potato (Solanum tuberosum L.) at Haramaya and Hirna, Eastern Ethiopia
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Bulti Merga --- School of Plant Sciences, Ethiopia Nigussie Dechassa --- School of Plant Sciences, Ethiopia Wassu Mohammed --- School of Plant Sciences, EthiopiaThe potato (Solanum tuberosum L.) is an important cash and food security crop in the eastern highlands of Ethiopia. However, the yield of the crop is constrained by low soil fertility and poor agronomic practices. Therefore, the field experiment was... -
“From war to peace”: Military festival visitors’ quality-of-life
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Dewald Venter --- Department of Hospitality, Tourism and PR Management, Human Sciences, South Africa Stefan Kruger --- WorkWell Research Unit, South AfricaThe Voortrekker Monument Military festival is one of several military festivals held in South Africa. This study sought to determine the travel motives and life domain effects on the quality-of-life of visitors. Data were gathered from 330 visitors on their... -
Dynamics of water exchange and salt flux in the Macuse Estuary, central Mozambique, southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LLAJ Miguel --- Post-Graduate Program in Geology (PPGl), Brazil JWA Castro --- Post-Graduate Program in Geology (PPGl), Brazil SFA Machava --- Department of Oceanography, MozambiqueStudies of water-particle flow dynamics in shallow estuarine systems show that tidal currents control water exchange, salt flux and residence time. We used the 3D Estuary, Lake and Coastal Ocean Model (ELCOM) to estimate the dynamics of tidal currents, salt... -
Contribution to the knowledge of the macroinvertebrate fauna of the streams of Kahuzi-Biega National Park, Democratic Republic of Congo
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MF Ngera --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo SU Pauls --- Senckenberg Research Institute and Natural History Museum, Germany RW Holzenthal --- Department of Entomology, USA M Bagalwa --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo MA Bisimwa --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo EM Mushayuma --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo DR Cammaerts --- Independent researcher, research associate of the CRSN-Lwiro, Democratic Republic of CongoThe Albertine Rift is one of Africa’s major biodiversity hotspots. However, the aquatic fauna of its western border in Democratic Republic of Congo (DRC) remains understudied and poorly characterised. Kahuzi-Biega National Park (KBNP) in DRC is a crucial link for... -
Addressing education inequality in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Folorunso Obayemi Temitope Obasuyi --- Department of Development Studies, Malaysia Rajah Rasiah --- Asia-Europe Institute, University of Malaya, MalaysiaThis paper examines the impact of wealth inequality on education inequality in the sub-Saharan African (SSA) countries, including by decomposing inequality across gender. Specifically, it analyzes the impact of wealth concentration on the distribution of educational attainment using a sample... -
Physico-chemical analysis of soils for the better yield of sugarcane and rice using Heber soil quality index
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: A Rajendran --- Department of Chemistry, India M Shanmuganathan --- Research and Development Centre, Bharathiar University, IndiaSoil quality plays an important role in the assessment of sustainable land-use systems. Assessment of soil quality will always help farmers to apply correct fertilisers in correct proportions to their soil. This will definitely help them achieve maximum yield with... -
The measurement and potential drivers of integrated report quality: Evidence from a pioneer in integrated reporting
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Arson Malola --- School of Accountancy, University of the Witwatersrand, South Africa Warren Maroun --- School of Accountancy, University of the Witwatersrand, South AfricaThis paper develops a measure for integrated report quality and explores possible drivers of high-quality reporting considering a sample of large listed companies in 2015 and 2016. Data are collected from South Africa where integrated reporting has been established for... -
Assessing clients’ satisfaction with the service quality of construction consultants in Lagos, Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwaseun Sunday Dosumu --- Department of Construction Management and Quantity Surveying, South Africa Clinton Aigbavboa --- Department of Construction Management, College of Science and Technology, RwandaThe service quality of consultants plays an important role in enhancing the success of construction projects. The study aims to determine the gaps between the clients’ observed and expected service quality of construction consultants. The 20-service quality (SERVQUAL) criteria of... -
Prevalence of Kudoa thyrsites (Myxozoa) in South African sardine Sardinops sagax, kingklip Genypterus capensis, and Cape hakes Merluccius capensis and M. paradoxus
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SS Henning --- Department of Food Science and Technology, South Africa M Krügel --- Department of Food Science, South Africa M Manley --- Department of Food Science, South AfricaPrevalence of infection with the myxozoan parasite Kudoa thyrsites is not well documented in sardine Sardinops sagax, the Cape hakes Merluccius capensis and M. paradoxus, and kingklip Genypterus capensis. Quantitative polymerase chain reaction assays were used to determine the prevalence... -
Improving the quality of clinical training in the workplace: implementing formative assessment visits
Item type: Journal Article • Journal: South African Family Practice • Authors: Robert Mash --- Division of Family Medicine and Primary Care, South Africa Zelra Malan --- Division of Family Medicine and Primary Care, South Africa Julia Blitz --- Division of Family Medicine and Primary Care, South Africa Jill Edwards --- Division of Family Medicine and Primary Care, South AfricaFamily physicians have a key role to play in strengthening district health services in South Africa. There are a number of barriers to the supply of these specialists in family medicine, one of which is the quality of workplace-based training... -
Integrating services for impact and sustainability: a proof-of-concept project in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: J Lyn Haskins --- Centre for Rural Health, South Africa Sifiso A Phakathi --- Centre for Rural Health, South Africa Merridy Grant --- Centre for Rural Health, South Africa Christiane M Horwood --- Centre for Rural Health, South AfricaBackground: Integration of services in primary health care settings can provide mother/baby pairs with all required services at one visit. This study aimed to evaluate a proof of concept, quality improvement (QI) intervention to strengthen well-child service provision and integration... -
Volume recovery and estimation of commercial volumes of Okan (Cylicodiscus gabunensis Harms) in southern Cameroon
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Julien M Seka --- Ministry of Forestry and Wildlife, National Forestry School, Cameroon Jean Bégin --- Department of Wood and Forest Sciences, Faculty of Forestry, Geography and Geomatics, CanadaThe objective of this study was to quantify the volume of residues and develop volume equations for estimation of commercial outside-bark volumes of Okan (Cylicodiscus gabunensis) at different logging stages. Two hundred and five stems with diameter at breast height... -
Universalization of Indonesian cultural and scientific regulations
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Miranda Risang Ayu Palar --- Faculty of Law, Indonesia Rajah Rasiah --- Asia-Europe Institute, MalaysiaIndonesia ratified the agreement on the establishment of the World Trade Organization, including its annex agreement, the Trade-Related Aspects of Intellectual Property Rights (TRIPS) in 1995. The alignment of Indonesian Intellectual Property Rights (IPRs) with that of the WTO’s TRIPS... -
Market orientation and poverty reduction: A study of rural microentrepreneurs in Ghana
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Charles Blankson --- Department of Marketing, Logistics and Operations Management, G. Brint Ryan College of Business, USA Julius A. Nukpezah --- Department of Political Science and Public Administration, USAWe draw on the quality of life theory and government economic development policies that focus on entrepreneurship for a theoretical backdrop to investigate the consequences of market orientation among microentrepreneurs in Ghana. We use qualitative data from 28 microentrepreneurs involving... -
Post COVID-19 online shopping in South Africa: A mediation analysis of customer satisfaction on e-service quality and purchase intention
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Matolwandile M. Mtotywa --- Tshwane University of Technology, South Africa Charles Kekana --- Tshwane University of Technology, South AfricaThe study investigated the dynamics of online shopping focusing on mediation analysis of customer satisfaction on e-service quality and purchase intention. The study used a cross-sectional quantitative method where 324 responses were collected through a self-administered online survey questionnaire from... -
Audit quality and independence concerns in the South African audit industry: Contrasting views
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Michael Harber --- College of Accounting, University of Cape Town, South Africa Ben Marx --- Department of Accountancy, South AfricaAudit quality in South Africa is perceived by the audit regulator to be deteriorating, with the primary cause being a compromise of auditor independence, mostly as a result of excessively long audit firm tenures. The regulator has responded with mandatory... -
The potential use of chironomids (Insecta: Diptera) as bioindicators in streams and rivers around Sebeta, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Mezgebu --- Department of Fisheries and Aquatic Sciences, Ethiopia A Lakew --- National Fisheries and Aquatic Life Research Centre, Ethiopia B Lemma --- Department of Zoological Sciences, Ethiopia G Beneberu --- Department of Biology, EthiopiaThe impact of human activities on streams and rivers of Ethiopia was assessed using the Dipteran family Chironomidae. Different stressors originating from industries and agricultural activities were assessed to see their effect on Chironomidae taxa. Chironomidae larvae were collected using... -
A comparison between the morphological and molecular approach to identify the benthic diatom community in the St Lucia Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Nunes --- Botany Department and Institute for Coastal and Marine Research, South Africa JB Adams --- Botany Department and Institute for Coastal and Marine Research, South Africa S Van Aswegen --- Department of Biochemistry and Microbiology, South Africa GF Matcher --- Department of Biochemistry and Microbiology, South AfricaThe use of diatoms as bioindicators to detect human-induced change is a globally accepted monitoring tool. DNA metabarcoding is an effective complementary tool to standard microscopic methods for species identification, providing reliable and timeous diatom assessments in a range of... -
Vulnerability of birds to contaminated water sources in the Karoo region of South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- FitzPatrick Institute of African Ornithology, South Africa Carolynne Geary --- Purposefully Lost Conservation Centre, South Africa Dale R Wright --- BirdLife South Africa, South Africa W Richard J Dean --- FitzPatrick Institute of African Ornithology, South AfricaThe Karoo is a unique region in South Africa in terms of its ecological processes and endemic species. Large areas are needed to maintain viable populations of nomadic birds that follow erratic rainfall events and subsequent food and nesting resources,... -
Physico-chemical and microalgal gradients change rapidly in response to mouth closure in a predominantly open estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Lemley --- Botany Department and the Institute for Coastal and Marine Research, South Africa JB Adams --- Botany Department and the Institute for Coastal and Marine Research, South AfricaA third of South Africa’s freshwater flow no longer reaches the coast, yet few systems have shifted from being permanently open to temporarily closed. For the first time since 1969, the Gamtoos Estuary mouth closed in June 2018, because of... -
Nutrient fluxes from sediments pose management challenges for the Knysna Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LRD Human --- South African Environmental Observation Network, Elwandle Coastal Node, South Africa R Weitz --- Department of Botany, Institute for Coastal and Marine Research, South Africa BR Allanson --- Knysna Basin Project, Department of Zoology and Entomology, South Africa JB Adams --- Department of Botany, Institute for Coastal and Marine Research, South AfricaThis study investigated seasonal dynamics of benthic nutrient fluxes using in situ benthic chambers deployed over a 24–hour period at the sediment water interface for four distinct regions of the Knysna Estuary. The sediment in the Upper Estuary, Lagoon and... -
Effects of long-term grazed crop and pasture systems under no-till on organic matter fractions and selected quality parameters of soil in the Overberg, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Jacques DV Smith --- Department of Soil Science, South Africa Johann A Strauss --- Western Cape Department of Agriculture, South Africa Ailsa G Hardie --- Department of Soil Science, South AfricaThere is limited soil research on semi-arid, grazed no-till crop and pasture systems. The long-term (10 years) effect of three grazed no-till dryland crop and pasture rotation systems, and perennial lucerne pasture were assessed on soil carbon (C) and nitrogen... -
Revegetation of marginal saline rangelands of southern Tunisia using pastoral halophytes
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Abderrazak Tlili --- , Tunisia Emna Ghanmi --- , Tunisia Naziha Ayeb --- , Tunisia Mounir Louhaichi --- , Jordan Mohamed Neffati --- , Tunisia Mohamed Tarhouni --- , TunisiaRevegetation of marginalised rangelands using pastoral halophytes is considered an appropriate scientific and environmental approach to rehabilitation. Atriplex halimus L. (Amaranthaceae), A. mollis Desf. (Amaranthaceae), Cenchrus ciliaris L. (Poaceae) and Lotus creticus L. (Fabaceae) are promising species for arid rangeland... -
The value of rested sourveld in a communal grazing area in the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Lynton J Dedekind --- , South Africa Jon McCosh --- , South Africa Terry M Everson --- , South Africa Craig D Morris --- , South Africa Dayle Trotter --- , South AfricaThe potential for forage accumulated during periodic long rests to provide valuable winter grazing for livestock in heavily stocked communal rangelands in sourveld was assessed. In a continuously-grazed commonage at Ntshiqo in the Eastern Cape, South Africa, we measured seasonal... -
Assessment of physico-chemical parameters of freshwater in the Sidi Abderrahmane reservoir, Safi, Morocco
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Belokda --- , Morocco Z Damsiri --- , Morocco L Natij --- , Morocco K Khalil --- , Morocco M Loudiki --- , Morocco A Dahbi --- , Morocco H Achtak --- , Morocco J Richir --- , Belgium B Sabour --- , Morocco K Elkalay --- , MoroccoThe purpose of the study was to assess the water quality in the Sidi Abderrahmane freshwater reservoir (Safi, Morocco). The monitoring data used in the study included physical, chemical, and biological characteristics. The spatial and temporal characteristics of these parameters... -
Tourism resources and carrying capacity of scenic tourism areas based on forest ecological environment
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Qiong Sun --- , China Naicong Zhang --- , China Zheng Liu --- , China Bin Liao --- , ChinaThe development of society promotes the development of forest scenic tourism areas. In order to further realise the scientific and rational development of forest scenic tourism areas, it is necessary to analyse their tourism resources and carrying capacity. This paper... -
Sustainable shellfish aquaculture in Saldanha Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Santa Marta --- , United Kingdom JG Ferreira --- , United Kingdom GC Pitcher --- , South Africa J Lencart e Silva --- , United KingdomThe carrying capacity for bivalve shellfish culture in Saldanha Bay, South Africa, was analysed through the application of the well-tested EcoWin ecological model, in order to simulate key ecosystem variables. The model was set up using: (i) oceanographic and water-quality... -
Spatial variation of nutrients and primary productivity in the Rufiji Delta mangroves, Tanzania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Minu --- , Tanzania J Routh --- , Sweden JF Machiwa --- , Tanzania S Pamba --- , TanzaniaDeterminations of spatial and temporal variations in organic matter and nutrient dynamics in water and sediments are crucial for understanding changes in aquatic bodies. In this study, we (i) determine the spatial dynamics of dissolved inorganic nutrients, during the transition... -
Cyanobacterial abundance and microcystins in water, seston and fish tissues in Lake Hora-Arsedi (Ethiopia)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TW Zewde --- , Ethiopia D Kifle --- , Ethiopia JA Johansen --- , Norway TB Demissie --- , Ethiopia JH Hansen --- , Norway Z Tadesse --- , EthiopiaThe phytoplanktonic composition with a focus on cyanobacteria, intra- and extracellular microcystins (MCs) concentrations and MCs concentrations in fish tissues were investigated in Lake Hora-Arsedi (Ethiopia). The phytoplankton community comprised of 40 species in the first phase of the study... -
Trends in chemical pollution and ecological status of Lake Ziway, Ethiopia: a review focussing on nutrients, metals and pesticides
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LB Merga --- , The Netherlands AA Mengistie --- , Ethiopia JH Faber --- , The Netherlands PJ Van den Brink --- , The NetherlandsAquatic ecosystems contribute to human well-being by delivering ecosystem services, but their protection has been given low priority in Africa. Lake Ziway in the Ethiopian Rift Valley basin provides services including irrigation, drinking water and fish food in the region... -
Host selection and notes on the distribution of Chonopeltis australis Boxshall, 1976 in southern Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LAM Neethling --- , South Africa A Avenant-Oldewage --- , South AfricaThe parasite Chonopeltis australis Boxshall, 1976 has been recorded from tributaries of the Orange-Vaal River System. It is host-specific, preferring the cyprinids Labeo capensis (Smith, 1841) and Labeo umbratus (Smith, 1841). Sampling was conducted between spring 2016 and autumn 2019... -
Angolan battlefield tourism: Impact on the quality-of-life of South African Defence Force (SADF) veterans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Dewald Venter --- , South AfricaThis study sought to determine the tourism travel motives of former South African Defence Force veterans with Angolan civil war battlefield experience . Nine veterans completed qualitative interviews on their travel motives, influences across their life domains, and quality-of-life overall,... -
Assessment of an HIV-prevention intervention for couples in peri-urban Uganda: pervasive challenges to relationship quality also challenge intervention effectiveness
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Phoebe Kajubi --- , Uganda Allison Ruark --- , USA Norman Hearst --- , USA Sam Ruteikara --- , Uganda Edward C Green --- , USAReducing multiple and concurrent partnerships has been identified as a priority in generalised HIV epidemics, yet developing successful interventions to bring about such behaviour change has proven challenging. We offered a three-session intervention aimed to improve couple relationship quality and... -
River water quality modelling and simulation based on Markov Chain Monte Carlo computation and Bayesian inference model
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mrunmayee Manjari Sahoo --- , India Kanhu Charan Patra --- , Rourkela, IndiaHierarchical Bayesian methods are experiencing increased use for probabilistic ecological modelling. Influence of water quality indicators in the river water are studied. Bayesian inference through Markov Chain Monte Carlo (MCMC) algorithm is used as the basic model to assess the... -
Absolute matrix summability via almost increasing sequence
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hikmet Seyhan Özarslan --- , Turkey Bagdagul Kartal --- ,In the present paper, a new theorem concerning absolute matrix summability factors, which generalizes a theorem on the summability factors of infinite series, has been proved by using almost increasing sequence and matrix transformation. -
Type of diabetes mellitus and health-related quality of life in Nigeria: Ethnic and sex differences
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Onyekachi Prince David --- , Denmark Graham Edgar --- , UK Dianne Catherwood --- , UK Abigail Olubola Taiwo --- , UKThis study examined quality of life (QoL) differences among diabetic patients in Nigeria by ethnicity, sex, and type of diabetes. Out-patients (n = 486) with diabetes mellitus (Type I = 16%; female = 71%; Igbo = 25% Hausa = 22%,... -
Barriers to the success of female leaders in the hospitality industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Martina Deiana --- , the Netherlands Chiara Fabbri --- , the NetherlandsThis research analyses gender equality in the hospitality industry in the United Kingdom and Ireland. In particular, this quantitative study focuses on women who could potentially occupy a senior management position, and therefore the aim of this research is to... -
Effects of egg shell meal on the performance and haematology of layers and their egg quality
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Uchele Okpanachi --- , Nigeria Khalid Aliyu Yusuf --- , Nigeria Maryann Kehinde Ikubaje --- , Nigeria Gift Cincin Amaje Okpanachi --- , NigeriaIn an attempt to achieve Sustainable Development Goals numbers one and two, eggshell meal was incorporated into layers diets to replace bone meal. Seventy-two point of lay birds were utilized in a nine-week experiment. Four experimental diets were formulated consisting... -
Temporal effects of biocontrol processes on nutrient dynamics in a shallow lake: Case study of Lake Xini, Okavango Delta in Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CN Kurugundla --- , Botswana JC Buru --- , AustraliaLittle is known about the effects of weeds on nutrient concentration changes in aquatic environments. We examined alterations to nutrient dynamics from the biocontrol process of Salvinia molesta by the weevil Cyrtobagous salviniae in the Lake Xini of Okavango, Botswana... -
Assessing wetland functionality using soil surface indicators in Letšeng- la-Letsie wetland in Quthing District, Lesotho
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Nthuseng Kahlolo --- , Lesotho Botle Mapeshoane --- , Lesotho Peter Chatanga --- , Lesotho Lerato Seleteng-Kose --- , Lesotho Makoala V Marake --- , LesothoWetlands are globally valuable ecosystems as they provide many important services to the human society, yet the ecology of some of them is yet to be understood. This study assessed the functionality of Letšeng-la-Letsie wetland in Lesotho, using the Landscape... -
“Out there it’s YOLO”: Youth perspectives on a mass media HIV- and gender-based violence campaign in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gavin Robert Walker --- , ChinaGender-based violence continues to be a leading determinant of South Africa’s HIV/AIDS epidemic. As such, gender socialisation and de-normalisation of gender inequality and violence remain principal objectives for public health organisations. This article discusses youth reception of a mass media... -
Mobilisation and dynamics of energy reserves in different tissues of Donax trunculus (Bivalvia: Donacidae) in the Gulf of Tunis (eastern Mediterranean Sea, Tunisia)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Boussoufa --- , Tunisia H Chalouati --- , Tunisia N Ghazali --- , Tunisia JC Navarro --- , Spain M El Cafsi --- , TunisiaSeasonal changes in condition index and the biochemical components (proteins, lipids and glycogen) of the gonad/digestive gland, foot, labial palp, mantle, gills and adductor muscles of Donax trunculus Linnaeus, 1758 from the Gulf of Tunis were monitored seasonally, from November... -
Value co-creation intention among consumers at the bottom of the pyramid: A study of rural and community banks in Ghana
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Angela Abena Nusenu --- , China Wen Xiao --- , China Joy Say --- , China Christian Narh Opata --- , GhanaWe investigated the relationship between consumer satisfaction, trust in firm, interaction, and perceived service quality on value co-creation intention among rural and community bank consumers in Ghana. Participants were a purposive sample of 315 (female = 49. 52%; mean age... -
Quality assessment of surface water using the Nile Chemical Pollution Index (NCPI) and microbiological pollution of the Rosetta Branch (Nile River, Egypt)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Amal A Othman --- , Egypt Afify DG Al-Afify --- , Egypt Amaal M Abdel-Satar --- , Egypt Mohamed F Ramadan --- , EgyptThe Rosetta Branch (Nile River, Egypt) is one of the main sources of freshwater for drinking, agricultural, and industrial activities in the Nile Delta. However, this water supply is compromised because it receives heavy loads of domestic, agricultural and industrial... -
Development of a Water Quality Assessment Index for the Chania River, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GK Robert --- , Kenya CN Onyari --- , Kenya JG Mbaka --- , KenyaHuman-related activities are known to have deleterious effects on the water quality of aquatic ecosystems, but there is limited information on the impact of these on rivers in tropical regions, such as the Chania River in Kenya. The Chania River... -
Zooplankton composition of temporary pools within the lower Nata River channel, Botswana, during dry season
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DT West --- , South Africa LL van As --- , South AfricaThe Nata River is a seasonal system situated in the semi-arid north-eastern Botswana, where rainfall is unpredictable and drought is common. The annual flow of approximately 279 million cubic meters is regionally significant and it forms an important resource for... -
Effects of fragmented mangroves on macrozoobenthos: a case study of mangrove clearance for powerline right-of-way at Oproama Creek, Niger Delta, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Zabbey --- , Nigeria IG Ekpenyong --- , Nigeria GN Nwipie --- , Nigeria IC Davies --- , Nigeria K Sam --- , NigeriaMangroves are vulnerable to varying magnitudes of degrading impact by human activities. Despite the many benefits of mangrove ecosystems, mangroves in the Niger Delta region are often cleared for electric powerline and oil pipeline rights-of-way, recreation, road construction, housing and... -
Species composition and distribution of mayflies (Ephemeroptera) in relation to land use systems along the Thika River, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: C Maina --- , Kenya BM Mwangi --- , Kenya JJ Jumbe --- , KenyaMayflies (order Ephemeroptera) are widely distributed and commonly used in biological assessment of water quality because of their sensitivity. Their application as bio-indicators in tropical streams and rivers, however, is hampered by lack of adequate information about their status in... -
Exploring hotel identity by focusing on customer experience analysis
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Javed Suleri --- , The Netherlands Roos Meijer --- , The Netherlands Edwin Tarus --- , The NetherlandsChanging customer demands in the 21st century have led hotels to rethink their way of doing business. While most hotels operate with an internal focus, it is essential to examine interactions from the customer’s perspective. This study explored what makes... -
Characterisation of Eucalyptus rhizospheric communities using fatty acid methyl ester (FAME) profile analysis
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Chimdi Nwigwe --- , South Africa Annabel Fossey --- , South Africa Olga de Smidt --- , South AfricaHybrid vigour is exploited in Eucalyptus forestry through the production of interspecific hybrids. Hybrids are deployed via cuttings that often suffer from poor rooting. Rhizospheric microorganisms have been associated with rooting enhancement, therefore knowledge of the diversity of microorganism communities,... -
Response of malt barley grain quality characteristics to increasing irrigation water salinity
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: VN Mathinya --- , South Africa JH Barnard --- , South Africa ZA Bello --- , South Africa E van der Watt --- , South AfricaPremiums are offered for high quality grain, but producers of malting barley are often confronted with marginal soils and water scarcity. Irrigation water quality is often low, primarily due to high salt loads. This study determined the effect of irrigation... -
Investigating the effects of hypersalinity on the cardiac performance of the invasive gastropod Melanoides tuberculata (Müller, 1774)
Item type: Journal Article • Journal: African Zoology • Authors: TJ de Haas --- , South Africa LJ Connell --- , South Africa R Greenfield --- , South AfricaAnthropogenic activities have propelled the exploitation of natural environments, which along with climate change have resulted in salinity intrusion to freshwater ecosystems worldwide. To determine the extent the hypersalinity stressor has on freshwater ecosystems, physiological cardiac responses in the freshwater... -
Green technology for bioremediation of the eutrophication phenomenon in aquatic ecosystems: a review
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Mostafa El-Sheekh --- , Egypt Mohamed M Abdel-Daim --- , Saudi Arabia Mohamed Okba --- , Egypt Samiha Gharib --- , Egypt Asgad Soliman --- , Egypt Hala El-Kassas --- , EgyptEutrophication is a serious phenomenon that leads to vigorous algal blooms that alters the structure of ecosystems. It is caused by non-point sources of nutrients; as nitrogen and phosphorus, and point sources as wastewater effluent. Distinctive algae groups are responsible... -
Quality assessment of groundwater in an agricultural belt in eastern Nigeria using a Water Quality Index
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Ogechi L Alum --- , Nigeria Chukwuma OB Okoye --- , Nigeria Hillary O Abugu --- , NigeriaThe physico-chemical and microbial analyses of fifteen hand-dug wells (HDWs) and six boreholes (BHs) in the Ezeagu and Uzo-uwani Local Governments Areas (LGAs) of Enugu State in south-eastern Nigeria were conducted to evaluate their water quality for potability. Samples were... -
Short-term recovery of macroinvertebrate communities following a flash flood in an urban river: a case study of the Palmiet River in Durban, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Khumalo --- , South Africa S Mdluli --- , South Africa J Lebepe --- , South AfricaExtreme floods have become frequent in the urban Palmiet River due to exacerbating climate change. Therefore, the current study aimed to explore a short-term recovery of macroinvertebrate communities following a flash flood in the Palmiet River, KwaZulu-Natal, South Africa. Different... -
Predictions of chlorophyll concentrations in the leaves of seedlings of two congeneric tropical trees from RGB digital image components
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Marcelo Schramm Mielke --- , Brazil Luciana Santos Lobo --- , Brazil Geane Santos da Costa --- , Brazil Ana Cristina Schilling --- , Brazil Martielly Santana dos Santos --- , Brazil Ândrea Carla Dalmolin --- , BrazilThe segmentation of digital images in red, green and blue (RGB) components is a low-cost method for monitoring leaf chlorophyll concentrations and seedling quality. The two congeneric species, Cariniana legalis and C. estrellensis, are distinguished based on differences in bark... -
Evaluation of a masculinity and gender equality intervention for primary school boys
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Maretha Visser --- , South AfricaInterventions to promote gender equality with children should focus on constructive perceptions of masculinity. This study aimed to evaluate a brief intervention to promote constructive gender perspectives among South African primary school boys. Participants were Grade five boys attending 10... -
The case for a universal basic income in South Africa: A conceptual approach
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Kerrie Sadiq --- , Australia Hanneke du Preez --- , South AfricaThis conceptual study investigates a model for addressing both poverty and income inequality, which is theoretically distinct from the traditional tax and transfer systems adopted by most jurisdictions. It does so against a backdrop of global uncertainty and ongoing challenges... -
Assessment of river health using benthic macroinvertebrates in the Dwars River, Olifants Water Management Area, Limpopo province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TV Mmako --- , South Africa A Addo-Bediako --- , South Africa WJ Luus-Powell --- , South Africa M Kekana --- , South AfricaThe study assessed the impact of water and sediment quality on benthic macroinvertebrate assemblages in the Dwars River, a tributary of the Olifants River, Limpopo province, South Africa. Physico-chemical variables, heavy metals and macroinvertebrates were collected using standard methods. A... -
Soil management for carbon sequestration
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Rattan Lal --- , United StatesAn increase in atmospheric CO2 by ∼146% and global temperature by ∼1 °C since the year ca. 1750 has created an urgency to identify potential sinks for storage of excess CO2. The historic depletion of soil organic carbon (SOC) from... -
Low acceptance of intimate partner violence by pregnant women in Uganda predicts higher uptake of HIV self-testing among their male partners
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Caroline J Vrana-Diaz --- , USA Jeffrey E Korte --- , USA Mulugeta Gebregziabher --- , USA Lauren Richey --- , USA Anbesaw Selassie --- , USA Michael Sweat --- , USA Rose Kisa --- , Uganda William Musoke --- , Uganda Harriet Chemusto --- , Uganda Esther Buregyeya --- , Uganda Joseph KB Matovu --- , Uganda Rhoda K Wanyenze --- , UgandaIntroduction: Heterosexual couples are at high risk for HIV acquisition in sub-Saharan Africa, and HIV self-testing (HST) is an additional approach to expand access to HIV testing services. However, it is not well known how gender equality is associated with... -
Firm quality and stock returns: Evidence from India
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sanjay Sehgal --- , India Asheesh Pandey --- , IndiaUsing data for 1 848 companies, we find that quality increases, not quality, drive stock returns in India. Profitability and safety seem to be relevant attributes for measuring quality. Our cross-sectional tests show that the role of quality in predicting... -
Evaluating practical teaching approach in civil engineering training among public universities of Ethiopia: students’ view and opinion
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Henok Marie Shiferaw --- , EthiopiaThis study presents civil engineering students’ observations on the practical education they receive at public universities in Ethiopia. The teaching approach in Ethiopia heavily favours theory-based teaching over skills-based teaching and there has been a gap in studies addressing the... -
Identification of technical factors that influence sugar productivity of factories in Sudan
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tageldeen S. Ibrahim --- , South Africa Tilahun S. Workneh --- , South AfricaThis study was conducted to identify the factors influencing the productivity of the sugar industry in Sudan. The study involved collecting data from selected sugar mill databases, namely, the Kenana, Guneid, Halfa, Sinnar, Assalaya and White-Nile sugar mills. The data... -
Effect of fibre and vessel biometry on wood combustibility of native Miombo tree species
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jonas Massuque --- , Brazil Kelly Iapuque Rodrigues de Sousa --- , Brazil Paulo Fernando Trugilho --- , BrazilFibres and vessels represent the largest proportion of anatomical elements in hardwood tree species. They exert significant effects on various properties of the wood, which, consequently, have several implications for the use of the wood. However, the effect of these... -
Profiling gendered multidimensional poverty and inequality in post-apartheid South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kehinde O. Omotoso --- , South Africa Jimi Adesina --- , South Africa Ololade G. Adewole --- , NigeriaReducing the gender gap in poverty remains a priority for South African policymakers. Using the 2018 General Households Survey (GHS), this paper examines gendered multidimensional poverty in post-apartheid South Africa. The analyses draw on Alkire-Foster multidimensional poverty methodology to present... -
Development of a multimetric index for assessing the ecological integrity of some selected rivers and streams in the north-eastern part of Lake Tana sub-basin, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Amelework Zewudu --- , Ethiopia Getachew Beneberu --- , Ethiopia Minwyelet Minigst --- , Ethiopia Amare Mezgebu --- , EthiopiaA multimetric index was developed using benthic macroinvertebrates to assess the ecological health of selected rivers and streams in the north-eastern part of Lake Tana subbasin, Ethiopia. One-time extensive sampling was carried out during the post-rainy season (November–December) of 2016... -
Structural assemblages of plant species in the Owabi Ramsar Wetland in the Ashanti Region of Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Collins A Nsor --- , Ghana Rockson Acolatse --- , Ghana John N Mensah --- , Ghana Samuel K Oppong --- , Ghana Daniel Dompreh --- , Ghana Louis Addai-Wireko --- , GhanaAnthropogenic activities as predictors of species assemblages in the Owabi Ramsar Wetland were investigated between May and September 2019. Data were collected in 154 plots at five different sites. The prevalence index method was used to categorise the species into... -
Spatial distribution of zooplankton in relation to some selected physicochemical water quality parameters of Lake Hawassa, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Getacher Beyene --- , Ethiopia Demeke Kifle --- , Ethiopia Tadesse Fetahi --- , EthiopiaWhile scientific information on spatial variation of freshwater zooplankton is relevant to limnological studies, little information is available from the Ethiopian Rift Valley lake: Lake Hawassa. This study aimed at understanding the spatial distribution of the dominant zooplankton taxa in... -
Influence of anthropogenic activities on water quality of the Kihansi River (Tanzania) and on population trends of captive Kihansi spray toads (Nectophrynoides asperginis)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Atuhombye Sigala --- , United Republic of Tanzania Kelvin Ngongolo --- , United Republic of Tanzania Naza Mmbaga --- , United Republic of TanzaniaFreshwater habitats in Africa receive large amounts of pollutants that affect several aspects of aquatic biodiversity, including Kihansi spray toads (KST) (Nectophrynoides asperginis). Little information is available on the influence of anthropogenic activities on the water quality along the Kihansi... -
A pandemic of inequality: reflections on AIDS and COVID-19 in the southern African context
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Arnau van Wyngaard --- , EswatiniIn 2020, COVID-19 started spreading from Wuhan in China to the USA, the UK and Europe and then to the rest of the world. In Africa, the first case of COVID-19 was reported in Egypt on 14 February, while South... -
The impact of the COVID-19 pandemic on people living with HIV in Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bernard Madzima --- , Zimbabwe Tatenda Makoni --- , Zimbabwe Owen Mugurungi --- , Zimbabwe Godfrey Mudariki --- , Zimbabwe Amon Mpofu --- , Zimbabwe Freeman Dube --- , Zimbabwe Lameck Munangaidzwa --- , Zimbabwe Isaac Taramusi --- , ZimbabweThe COVID-19 pandemic was reported from March 2020 in Zimbabwe. COVID-19 containment measures which included repeated lockdowns have disrupted community interactions, reduced working hours, restricted travel and restricted HIV services for people living with HIV (PLHIV), among others. The study... -
Mobile broadband quality of service analysis using host-based performance measurements
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ayokunle Ayoyemi Akinlabi --- , Owo, Nigeria Folasade Mojisola Dahunsi --- , Akure, NigeriaMobile broadband since its adoption in Africa has been able to deliver both social and economical dividends to the African people. The increased migration to mobile broadband services in Africa is due to accelerated smartphone adoption rate, increased network roll-out... -
Upgrading and inequality in global value chains: Challenges for inclusive and sustainable development
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Antonio Biurrun --- , Spain Marta dos Reis Castilho --- , Brazil Raquel Marín --- , Spain Cipriano Quirós --- , SpainThe phenomena of globalization and fragmentation of production drive countries to face a double challenge of catching up: economic upgrading coupled with improvement in living standards. Meanwhile, insertion and upgrading within global value chains (GVCs) deeply affect national economies in... -
Social entrepreneurs’ use of spatial bricolage to create frugal innovation in a divided urban setting
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Susanne Nilsson --- KTH Royal Institute of Technology, Stockholm, Sweden Mikael Samuelsson --- University of Cape Town, South Africa Camille Meyer --- University of Cape Town, South AfricaThis study examines how social entrepreneurs mobilize resources to innovate in divided urban settings. Over a period of two years, we followed four social start-up entrepreneurs in the city of Cape Town, South Africa, characterized by some of the highest... -
An empirical study stepping towards ethnographic research for e-commerce websites: A perspective of user-centred design
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Thabang Excellent Mofokeng --- University of Johannesburg, South AfricaUser-centred design denotes human-centred design processes for interactive systems that intend to meet consumers’ demand for web interface design and usability in human–computer interactions. Perceptions of user interface quality, security, trust, and loyalty were examined in this study. Cross-sectional data... -
The contribution and value of the trait-based approach to water resource protection
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Oghenekaro Nelson Odume --- , South AfricaFreshwater is one of the Earth’s most crucial resources for social-economic development and prosperity. Biomonitoring contributes to water resource protection by integrating a holistic picture of ecosystem health through an analysis of resident biota. The taxonomy-based approach, in which taxa... -
Impact of cold plasma-mediated treatment on coated and packaged ‘Monterey’ strawberries during cold storage
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Zinash A Belay --- , South Africa Nandi E Nyamende --- , South Africa Oluwafemi James Caleb --- , South AfricaCold plasma technology has been used within the food industry for surface decontamination. Therefore, this study investigated the efficacy of low-pressure cold plasma (CP) treatment to decontaminate sodium alginate-coated and packaged ‘Monterey’ strawberries. Cold plasma treatment was carried out at... -
Determinants of customer satisfaction in a high-contact service environment: a study of selected hotels in Abakaliki metropolis, Nigeria
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Maria-Friday C Nkwede --- Ebonyi State University, Nigeria Ike-Elechi Ogba --- Ebonyi State University, Nigeria Friday E Nkwede --- Ebonyi State University, NigeriaThis article explores the factors that lead to customer satisfaction, with a particular interest in the hospitality industry of Abakaliki, Ebonyi State, Nigeria. In a high-contact service industry such as hospitality, service providers and customers usually have an intimate and... -
Investigating the potential for saltpan restoration for the provision of multiple ecosystem services
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Johan Wasserman --- , South Africa Janine B Adams --- , South Africa Daniel A Lemley --- , South AfricaSaltpans are increasingly being abandoned around the world, leading to the loss of ecosystem services provided by these unique semi-natural wetlands. The desertion of a saltpan at the Swartkops Estuary, South Africa has left behind a large area of desiccated... -
Comparison of oxidative stress biomarkers in Oreochromis mossambicus in minimally and highly disturbed aquatic environments in the Matabeleland region, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Z Makuvara --- , Zimbabwe J Marumure --- , Zimbabwe L Chapungu --- , Zimbabwe J Machingura --- , South Africa AH Siwela --- , ZimbabweOwing to their ability to provide a functional measure of organismal response to chemical stressors, oxidative biomarkers are useful in ecotoxicological studies to assess disturbance in aquatic environments. This study assessed the use of oxidative stress biomarkers in Oreochromis mossambicus... -
An assessment of water and sediment quality of aquatic ecosystems within South Africa’s largest floodplain
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D van Rooyen --- , South Africa R Gerber --- , South Africa NJ Smit --- , South Africa V Wepener --- , South AfricaNdumo Game Reserve (NGR), a Ramsar site, situated in South Africa’s largest floodplain (Phongolo River floodplain) in northern KwaZulu-Natal, with important aquatic ecosystems: the Usuthu and Phongolo rivers and their associated floodplain lakes. While the Phongolo River is regulated, the... -
Patients in public hospitals received insufficient food to meet daily protein and energy requirements: Cape Town Metropole, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Marieke Theron --- University of Cape Town, South Africa Siobhan O’Halloran --- Institute of Basic Medical Sciences, University of Oslo, Norway -
On q-analogs of Struve functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Karima M. Oraby --- Suez University, Egypt Zeinab S.I. Mansour --- Cairo University, EgyptIn this paper, we introduce q-analogs of the Struve-Bessel functions in terms of q-sine functions. We study the reality of the zeros of the q-Struve Bessel functions and their properties. Also, the interlacing of the zeros of the q-Struve Bessel... -
Equivalent almost periodic functions in terms of the new property of almost equality
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Juan Matías Sepulcre --- University of Alicante, Spain Tomás Vidal --- Universidad Nacional de Educación a Distancia (UNED), SpainIn this paper we introduce the notion of almost equality (or, more specifically, almost equality by translations) of complex functions of an unrestricted real variable in terms of the new concept of ϵ-translation number of a function with respect to... -
Met and unmet palliative care needs of people living with HIV/AIDS in Rwanda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jeannine Uwimana --- Kigali Institute of Science and Technology (KIST), P. Struthers --- University of the Western Cape,The rising number of people living with HIV/AIDS (PLWHA) worldwide has made health care professionals and policy makers search for accessible health care that will meet the needs of people who are suffering from the disease and enhance their quality... -
Challenges impacting on the quality of care to persons living with HIV/AIDS and other terminal illnesses with reference to Kanye community home-based care programme
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Simon M Kang'ethe --- Skill Share International,HIV/AIDS has been found to be a challenging disease to humanity, its challenge spin-offs falling especially on to the caregivers of those infected and affected by the virus. This paper aims to discuss the challenges influencing the state of caregiving... -
HIV/AIDS prisoners: a case study on quality of life in Roumieh, Lebanon
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Diala F Ammar --- Lebanese American University, Lebanon Heyam L El Zein --- Lebanese American University, Lebanon Neal El Jor --- Lebanese American University,Prisons often lack the basic health services required by HIV/AIDS patients. As with many other chronic illnesses, the treatment of HIV is expensive in terms of medication, hygiene, testing and staff training. Strategies to combat the disease have been thoroughly... -
Peripheral neuropathy and quality of life of adults living with HIV/AIDS in the Rulindo district of Rwanda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Juvenal Biraguma [d147e18] Anthea RhodaAlthough the life expectancy of people living with HIV/AIDS (PLWH) has increased in the past years, they could experience secondary illness such as peripheral neuropathy (PN). Therefore, they need to adapt to chronic disablement which could affect their quality of... -
Comparison of the health-related quality of life, CD4 count and viral load of AIDS patients and people with HIV who have been on treatment for 12 months in rural South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jude Igumbor [d348e18] Aimee Stewart William HolzemerThis study compared the level of CD4 count, viral load and health-related quality of life (HRQOL) between treatment-naïve AIDS patients and a cohort of people living with HIV who have been on treatment for 12 months. This study is based... -
A comparison of quality of life between HIV positive and negative diamond miners in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jeff Gow --- , , Australia Gavin George --- , , South Africa Kaymarlin Govender --- , , South AfricaObjective: To analyse the health-related quality of life (HR-QOL) in two groups of diamond miners (HIV negative and positive) in South Africa using three instruments. Two hypotheses were to be tested. One, was that the HR-QOL of HIV positive miners... -
Conflicting discourses of church youths on masculinity and sexuality in the context of HIV in Kinshasa, Democratic Republic of Congo
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Hendrew Lusey --- , , Democratic Republic of Congo Miguel San Sebastian --- , , Sweden Monica Christianson --- , , Sweden Lars Dahlgren --- , , Sweden Kerstin E. Edin --- , , SwedenMasculinity studies are fairly new and young churchgoers are an under-researched group in the current Congolese church context. In response to this knowledge gap, this paper attempts to explore discourses of young churchgoers from deprived areas of Kinshasa regarding masculinity... -
An assessment of quality of home-based HIV counseling and testing performed by lay counselors in a rural sub-district of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Vuyolwethu Magasana --- , South Africa Wanga Zembe --- , South Africa Hanani Tabana --- , South Africa Reshma Naik --- , South Africa Debra Jackson --- , South Africa Sonja Swanevelder --- , South Africa Tanya Doherty --- , South AfricaHIV counseling and testing (HCT) has been prioritized as one of the prevention strategies for HIV/AIDS, and promoted as an essential tool in scaling up and improving access to treatment, care and support especially in community settings. Home-based HCT (HBHCT)... -
Health-related quality of life and associated factors in adults living with HIV in Rwanda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Juvenal Biraguma --- , , Rwanda Eugene Mutimura --- , , Rwanda José M Frantz --- , , South AfricaIn Rwanda, as in other sub-Saharan African (SSA) countries, life expectancy of people living with HIV (PLWH) has increased dramatically as a result of combined antiretroviral therapy (cART). People living with HIV can now live longer but with increasing rates... -
Evaluation of the quality constructs of a tax management system based on DeLone and McLean IS success model
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Godwin Banafo Akrong --- School of Management and Economics (UESTC), University of Electronic Science and Technology, People’s Republic of China Yunfei Shao --- School of Management and Economics (UESTC), University of Electronic Science and Technology, People’s Republic of China Ebenezer Owusu --- University of Ghana, GhanaWe presented a novel method to analyze the impact tax management systems have on users (individual impact) in this study. The interrelationship among the three information system (IS) quality constructs is examined. The study is based on the evaluation undertaken... -
Zooplankton distribution and community structure as a function of environmental variables in the Niger River and its tributaries in Niger
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Souley Adamou --- Université de Toulouse, France B Alhou --- Université Abdou Moumouni de Niamey, Niger M Tackx --- Université de Toulouse, France F Azémar --- Université de Toulouse, FranceThe Niger River and its main tributaries (Sirba, Tapoa and Mékrou) in Niger were sampled during high and low water flow with the objectives of (1) comparing the taxonomic structure, diversity and abundance of the zooplankton community (rotifers, copepods, crustaceans)... -
Evaluating HIV policy: a gender analysis of the representation of women and men in UNAIDS HIV-prevention guidelines
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Catherine Merriman --- Queen Mary University of London, United Kingdom Kevin Deane --- Open University, United KingdomGender inequalities have long been recognised as one of the most significant factors influencing the dynamics of the HIV epidemic in sub-Saharan Africa (SSA). However, it remains unclear how men and women are discussed in HIV-prevention initiatives and if certain... -
Generation Z’s perspective on restaurant service quality
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Maike Nuyken --- Wittenborg University of Applied Sciences, The Netherlands Doron Zilbershtein --- Wittenborg University of Applied Sciences, The Netherlands Abdul Rauf --- Wittenborg University of Applied Sciences, The NetherlandsWhen it comes to dining, Generation Z (Gen Z) consumers bring their own set of expectations that challenge conventional perspectives of restaurant service quality. The purpose of this research was to explore the relevance of DINESERV to the evaluation of... -
Some properties of the Walsh-Nörlund means
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ushangi Goginava --- United Arab Emirates University, UAE Károly Nagy --- Institute of Mathematics and Computer Sciences, University of Nyíregyháza, Nyíregyháza, HungaryIn the present paper we give a necessary and sufficient condition on monotone weights, which guaranties the Nörlund means of Walsh-Fourier series converge in L 1 norm and CW norm. We also discuss the almost everywhere summability by Nörlund means... -
Non-blow-up and blow-up results to heat equations with logarithmic nonlinearity on stratified groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ardak Kashkynbayev --- Nazarbayev University, Kazakhstan Aidyn Kassymov --- Ghent University, Belgium Durvudkhan Suragan --- Nazarbayev University, KazakhstanIn this paper, we obtain a finite-time non-blow-up result for the sub-Laplacian heat equations with logarithmic nonlinearity on stratified groups. In our proof, the logarithmic Sobolev-Folland-Stein inequality plays a key role. We also establish a blow-up result at infinite time... -
Some sharpened and refined versions of the q—Steffensen inequality
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ksenija Smoljak Kalamir --- University of Zagreb, CroatiaBased on a known sharpened and refined versions of a classical Steffensen inequality, we derive new sharpened and refined versions of a q–Steffensen inequality. Next, we give weaker conditions for some already known generalizations of q–Steffensen’s inequality and for new... -
Social support and health-related quality of life in Nigerian cancer patients: Role of cancer-related stress
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Erhabor Sunday Idemudia --- North-West University, South Africa Desmond Uchechukwu Onu --- University of Nigeria, Nigeria Maria-Chidi Christiana Onyedibe --- University of Nigeria, Nigeria Lawrence E Ugwu --- North-West University, South AfricaWe investigated the mediating influence of cancer-related stress (CRS) in social support health-related quality of life (HRQoL) among Nigerian cancer patients. Nigerian cancer patients (n = 316; female = 64.6%; mean age = 50.16 years, SD = 13 years) completed... -
Bromatological and histological features of native African grasses under grazing in Brazilian semi-arid rangelands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Talita Roberta Firemand de Lira Menor --- Universidade Federal Rural de Pernambuco, Brazil Mércia Virginia Ferreira dos Santos --- Universidade Federal Rural de Pernambuco, Brazil Janerson José Coêlho --- Universidade Federal Rural de Pernambuco, Brazil Geane Dias Gonçalves --- Universidade Federal Rural de Pernambuco, Brazil Alexandre Carneiro Leão de Mello --- Universidade Federal Rural de Pernambuco, Brazil Márcio Vieira da Cunha --- Universidade Federal Rural de Pernambuco, Brazil Amanda Maria Gallindo dos Santos --- Universidade Federal Rural de Pernambuco, Brazil Ivan Ferraz --- Instituto Agronômico de Pernambuco, Brazil José Carlos Batista Dubeux Júnior --- University of Florida, United StatesThis study evaluated the bromatological and histological features of native African grasses under grazing in Brazilian semi-arid rangelands. An experimental grid design was used in a randomised sampling method for four replicate samples of three African grasses. The grasses evaluated... -
Forage yield and quality response of Napier grass (Cenchrus purpureus) to different dry season harvesting management under the subhumid agroecology of western Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Abuye Tulu --- Oromia Agricultural Research Institute, Ethiopia Mekonnen Diribsa --- Oromia Agricultural Research Institute, Ethiopia Worku Temesgen --- Oromia Agricultural Research Institute, EthiopiaA 3 × 2 factorial study was conducted in 2015, 2016 and 2017, to assess the impact of dry season cutting management on fodder yield and quality of Napier grass. Three harvesting times (November, January and March) and two stubble-... -
Variations and extensions of the Gaussian concentration inequality, Part I
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Daniel J. Fresen --- University of Pretoria, South AfricaThe classical Gaussian concentration inequality for Lipschitz functions is adapted to a setting where the classical assumptions (i.e. Lipschitz and Gaussian) are not met. The theory is more direct than much of the existing theory designed to handle related generalizations... -
Componentwise localization of solutions to systems of operator inclusions via Harnack type inequalities
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Radu Precup --- Institute of Advanced Studies in Science and Technology, Babeş -Bolyai University & Tiberiu Popoviciu Institute of Numerical Analysis, Romania Jorge Rodríguez-López --- CITMAga, Universidade de Santiago de Compostela, SpainWe establish compression-expansion type fixed point theorems for systems of operator inclusions with decomposable multivalued maps. The approach is vectorial allowing to localize individually the components of solutions and to obtain multiple solutions with multiplicity not necessarily concerned with all... -
Water quality profile and metal pollution indices of the main stream of the Nile River in Egypt
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Manar M Hussein --- National Institute of Oceanography and Fisheries (NIOF), Egypt Mohamed E Goher --- National Institute of Oceanography and Fisheries (NIOF), Egypt Ahmed H Mangood --- Menofia University, Egypt Ibrahim E Mousa --- University of Sadat City, EgyptThe lower Nile River is a vital drinking and irrigation water source in Egypt. Human activities adjacent to rivers deteriorate the quality of such water resources. The water quality profiles of 23 sites along the Nile were calculated in accordance... -
Spatio-temporal variation in phytoplankton community structure in backwaters of the Ketar River, central Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Yadesa Chibsa --- Wachemo University, Ethiopia Seyoum Mengistou --- Addis Ababa University, Ethiopia Demeke Kifle --- Addis Ababa University, EthiopiaThis study assessed the spatio-temporal dynamics of the phytoplankton community in backwaters of the Ketar River, central Ethiopia, in relation to water quality and macrophyte coverage. Phytoplankton samples and physicochemical information were collected at six sites along the river over... -
Status of gender equality in ocean research, conservation and management institutions and organisations in Kenya
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RA Ojwala --- WMU–Sasakawa Global Ocean Institute, World Maritime University, SwedenGender equality is key to achieving the objectives of the United Nation’s Decade of Ocean Science for Sustainable Development. In patriarchal societies, men’s dominance has long overshadowed women’s participation in science-related fields, including ocean science. The lack of gender-disaggregated data... -
Early infant male circumcision: Potential for changing adverse gender norms associated with traditional male circumcision among circumcising communities in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jacob Onyango --- , Kenya Marylyn Ochillo --- , Kenya Eunice Omanga --- , Kenya Ohaga Spala --- , Kenya Gift-Noelle Wango --- , Kenya Edwin Lwanya --- , Kenya Kawango Agot --- , KenyaIntroduction: Traditional male circumcision (TMC) inculcates masculine-dominance norms in young men. Early infant male circumcision (EIMC) and medical male circumcision (MMC) can potentially minimise these adverse gender norms. We explored the perceptions about EIMC and MMC among communities practising TMC... -
Moving the Margins: Gender Inequality and Homelessness in Amma Darko’s Faceless
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Puleng Segalo --- University of South Africa, South Africa Theresah Patrine Ennin --- University of South Africa, South AfricaMany African women writers have engaged with issues of social justice, development and the need to pay attention to the persistent inequalities that eat away the fabric of many societies. To this day, they continue to be at the coalface... -
Chernoff’s inequality in Riesz spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mohamed Amine Ben Amor --- Tunis-El Manar University, Tunisia Amal Omrani --- Tunis-El Manar University, TunisiaIn this work, we will generalize the moment generating function to Riesz spaces. We will derive some of its properties and use it to prove Chernoff’s inequality inn Riesz spaces. -
Diet quality of adults with poorly controlled type 2 diabetes mellitus at a tertiary hospital outpatient clinic in Tshwane District, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Hanel Duvenage --- University of Pretoria, South Africa Gerda J Gericke --- University of Pretoria, South Africa Jane W Muchiri --- University of Pretoria, South AfricaObjective: To describe the dietary intake and its quality of patients with poorly controlled type 2 diabetes mellitus (T2DM) by assessing the dietary variety (DVS), dietary diversity (DDS), nutrient adequacy ratio (NAR) and mean nutrient adequacy ratio (MAR). -
Relationship between sediment grain sizes and macroinvertebrate distribution along the Isiukhu River, western Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Emmanuel Mzungu --- Masinde Muliro University of Science and Technology, Kenya Anthony W Sifuna --- Masinde Muliro University of Science and Technology, Kenya William A Shivoga --- Masinde Muliro University of Science and Technology, KenyaThe current study investigated the relationship between sediment grain sizes and macroinvertebrate distribution along the Isiukhu River, a tropical stream in western Kenya. Ten sites in total were selected from the upstream, midstream and downstream areas. Sampling of sediments and... -
Role of the Lethabo Weir in altering the phytoplankton community structure of the Vaal River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: S Janse van Vuuren --- North-West University, South Africa A Swanepoel --- , South AfricaDuring 2012, aerial photographs of the Vaal River, South Africa, showed differences in water colour on either side of the Lethabo Weir. Water upstream of the weir was muddy brown, while water downstream was olive-green. Physical and chemical analyses indicated... -
Rainfed-based production of Megathyrsus maximus in sub-Saharan Africa: the case of the semi-arid environment of Sudan
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hussein I Mohamed --- , Sudan Shamseddin M Ahmed --- Water Management and Irrigation Institute, University of Gezira, Sudan Adil D Mohamed --- Water Management and Irrigation Institute, University of Gezira, SudanThe performance of rainfed-based Megathyrsus maximus (syn. Urochloa maxima and Panicum maximum) was investigated in the semi-arid pastures of Sudan. Split-plot complete design experiments with three replications were applied for two consecutive seasons (2020–2021). The treatments were two in situ... -
Numerical radius inequalities for the off-diagonal parts of 2 × 2 operator matrices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Aicha Ammar --- Mustapha Stambouli University, Algeria Abdelkader Frakis --- Mustapha Stambouli University, Algeria Fuad Kittaneh --- The University of Jordan, JordanWe give some new bounds for the numerical radii of the off-diagonal parts of 2 × 2 operator matrices. A refinement of the triangle inequality for the operator norm is also given. -
Moderating role of organizational culture in the relationship between total quality management and organizational innovation among manufacturing SMEs in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kabir Musa Shuaib --- Tianjin University, People’s Republic of China Zhen He --- Tianjin University, People’s Republic of ChinaPrevious studies on the total quality management and innovation relationship have had mixed findings. We predict that organizational culture could moderate the relationship between total quality management and organizational innovation. The study collected empirical data from 433 small and medium-sized... -
How college students’ social media information overload affects sleep quality: The mediating effect of social fatigue and irrational procrastination
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jing Li --- Zhejiang University, China Tingting Gao --- Zhejiang University, China Yinghua Ye --- Zhejiang University, ChinaInformation overload is a pervasive phenomenon in the information age and has a negative impact on personal psychological experiences and behavioural performance. The relationship between WeChat information overload and sleep quality was examined, as well as the mediating effects of... -
Service quality and the services sourced from small accounting practitioners
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Adele Oosthuizen --- University of Johannesburg, South AfricaSmall and Medium Enterprises (SMEs) often lack the necessary financial skills to safeguard business success. It is therefore expected that they would benefit from the advisory services offered by external accountants. Research, however, indicates a reluctance amongst Small Business Owners... -
Parental marital quality and adolescents’ online social addiction: Influences of adolescents’ interpersonal sensitivity and peer relationships
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: --- Zhongyuan University of Technology, China --- Xuchang University, ChinaThis study explored interpersonal sensitivity and peer relationships as mechanisms in the parental marital quality and adolescents’ online social addiction. Participants were 914 Chinese middle school students (females = 53.39%; mean age = 13.95, SD = 1.89 years). They completed... -
Incident and persistent poor sleep quality and associated factors among a rural ageing population in South Africa: A longitudinal study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: --- University of the Free State, South AfricaPoor sleep quality (PSQ) is common among ageing adults, while the correlates of poor sleep quality among older adult populations are less well understood. The study utilised data from the South African 4-year longitudinal study on Health and Ageing in... -
Dynamics of tall fescue (Festuca arundinacea) and Kikuyu grass (Cenchrus clandestinus) pastures associated with white clover (Trifolium repens) in small-scale dairy systems in the highlands of central Mexico
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: --- Instituto de Ciencias Agropecuarias y Rurales (ICAR), Universidad Autónoma del Estado de México (UAEM), México --- Instituto de Ciencias Agropecuarias y Rurales (ICAR), Universidad Autónoma del Estado de México (UAEM), México --- , México --- Instituto de Ciencias Agropecuarias y Rurales (ICAR), Universidad Autónoma del Estado de México (UAEM), MéxicoAn on-farm participatory study was undertaken to assess changes over seasons on the availability, botanical and morphological composition, and nutritive value of herbage from two pastures in small-scale dairy systems in the highlands of central Mexico. One pasture (TF-33) was... -
Water quality monitoring and measuring physicochemical parameters using wireless sensor networks
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Satyanarayana Murthy --- , India SF Ahamed --- , IndiaIn a world grappling with the dire consequences of poor sanitation and inadequate water conditions, there is an urgent need for a comprehensive solution. The staggering statistics of over 400 million affected cases and 15–25 million lives lost worldwide underscore... -
Effect of abattoir activities on the quality of water and surrounding soil of the Anwai River in Asaba, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OT Fatunsin --- University of Lagos, Nigeria IG Enenya --- University of Lagos, Nigeria P Ebomese --- University of Lagos, NigeriaThe Anwai River is the most important river in Asaba, Nigeria, because of its many uses, and these include abattoir activities. The aim of this study was to assess the surface water and surrounding soil of the Anwai River for... -
On the Lp -sine moment-entropy inequality
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zi-Xin Cao --- Shaanxi Normal University, China Qingzhong Huang --- Jiaxing University, China Ai-Jun Li --- Zhejiang University of Science and Technology, ChinaIn this paper, we establish a sine version of the moment-entropy inequality due to Lutwak et al. [8]. Moreover, we show that this inequality is equivalent to the Lp -sine moment-entropy inequality recently established in [6]. -
Order boundedness and order continuity properties of positive operator semigroups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jochen Glück --- University of Wuppertal, School of Mathematics and Natural Sciences, Germany Michael Kaplin --- Institute of Mathematics, SlovenijaRelatively uniformly continuous (ruc) semigroups were recently introduced and studied by Kandic, Kramar-Fijavž, and the second-named author, in order to make the theory of one-parameter operator semigroups available in the setting of vector lattices, where no norm is present in... -
Health provider administration functions, patient satisfaction, and loyalty: Their mediation by patient healthcare service quality perceptions
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Geoffrey Bentum-Micah --- Zhejiang Normal University, China Lianyu Cai --- Zhejiang Normal University, China Sampson Agyapong Atuahene --- Zhejiang Normal University, China Moses Agyemang Ameyaw --- Zhejiang Normal University, China Victor Bondzie-Micah --- Hong Kong Baptist University, Hong Kong Stephen Sarfo Adu-Yeboah --- Hefei University of Technology, ChinaThe study tested a health service quality mediation model on patient satisfaction and loyalty outcomes with provider administration functions. Participants were 7 108 outpatients from eleven public hospitals in Hubei province, China (female = 58.5%; infections and chronic diseases =... -
Upper bounds for the numerical radii of powers of Hilbert space operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mohammed Al-Dolat --- Jordan University of Science and Technology, Jordan Fuad Kittaneh --- The University of Jordan, JordanWe present several upper bounds for the numerical radii of 2 × 2 operator matrices. We employ these bounds to improve on some known numerical radius inequalities for powers of Hilbert space operators. In particular, we show that if T... -
Some new properties of geometrically-convex functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Shigeru Furuichi --- Nihon University, Tokyo, Japan Nicuşor Minculete --- University of Braşov, Romania Hamid Reza Moradi --- Islamic Azad University, Iran Mohammad Sababheh --- Princess Sumaya University For Technology, JordanThe class of geometrically convex functions is a rich class that contains some important functions. In this paper, we further explore this class and present many interesting new properties, including fundamental inequalities, supermultiplicative type inequalities, Jensen-Mercer inequality, integral inequalities, and... -
Is psychological resilience associated with changes in youth sport participants’ health-related quality of life during the COVID-19 pandemic?
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Carolyn T Graham --- Faculty of Kinesiology, University of Calgary, Canada Heather A Shepherd --- Faculty of Kinesiology, University of Calgary, Canada Olivia Galea --- Faculty of Kinesiology, University of Calgary, Canada Daniel C Kopala-Sibley --- Alberta Children’s Hospital Research Institute, University of Calgary, Canada Carolyn A Emery --- Faculty of Kinesiology, University of Calgary, Canada Keith Owen Yeates --- Alberta Children’s Hospital Research Institute, University of Calgary, CanadaObjectives: This study investigated the quality of life of youth sport participants over the COVID-19 pandemic as moderated by psychological resilience. -
Assessment of surface water quality in a highly anthropised semi-arid catchment (Case of Wadi El Hatab Basin, Tunisia, North Africa)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Hayouni --- University of Sfax, Tunisia N Chkir --- University of Sfax, Tunisia S Pistre --- Université Montpellier, France K Zouari --- University of Sfax, TunisiaAnthropogenic contamination of surface waters is a critical issue in urbanised catchments, especially in Mediterranean environments with scarce water resources and intermittent rivers. A combined hydro-geochemical and multivariate statistical methodology has been applied to evaluate the surface water quality of... -
Examining the income gap-gender inequality nexus in Africa using bi-wavelet and partial wavelet coherence analysis
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Rasaq Raimi --- Nelson Mandela University, South Africa Andrew Phiri --- Nelson Mandela University, South AfricaThe eradication of gender discrimination traditions and the reduction of income disparities are vital global objectives outlined in Sustainable Development Goals 4 and 10, particularly in African nations where gender and income gaps persist. In alignment with these goals, this... -
Complete convergence for the maximal partial sums without maximal inequalities
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Fakhreddine Boukhari --- Abou Bekr Belkaid University, Algeria Nguyen Chi Dzung --- Institute of Mathematics, Vietnam Academy of Science and Technology, Vietnam Lê Vǎn Thaǹh --- Vinh University, VietnamThis work provides the necessary and sufficient conditions for complete convergence for the maximal partial sums of dependent random variables. The results are proved without using maximal inequalities. The main theorems can be applied to sequences of (i) m-pairwise negatively... -
Exponential stability results for second-order impulsive neutral stochastic differential equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dongdong Gao --- Tongling University, P.R. China Daipeng Kuang --- Hunan Normal University, P.R. China Jianli Li --- Hunan Normal University, P.R. ChinaThis paper is aimed to discuss the existence and exponential stability of mild solutions for second-order impulsive neutral stochastic differential equations (INSDEs). Firstly, we derive the existence of mild solutions for INSDEs by using the Banach fixed point theorem. Then,... -
Do we have the tools for achieving distributive tax justice?
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: James Alm --- Tulane University, USAPurpose: How can tax policies serve as a tool to promote distributive tax justice? The purpose of this study is to discuss several policies that research shows are both feasible and effective in achieving distributive tax justice. -
Third-order Hankel determinants for q-analogue analytic functions defined by a modified q-Bernardi integral operator
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sarem H. Hadi --- College of education for pure sciences, University of Basrah, Iraq Maslina Darus --- Universiti Kebangsaan Malaysia, Malaysia Rabha W. Ibrahim --- Near East University, Mathematics Research Center, TurkeyIn this paper we define a Bernardi type quantum integral operator. It transforms the starlike univalent in the unit disk into a starlike region in it. We show that the upper-bound of the third-order Hankel determinant for classes of q-starlike... -
Nutritional improvement of cactus fruit scraps with addition of alfalfa or Atriplex halimus, and comparison of two animal feed preservation methods (silage and solar drying)
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: L El Hajji --- Sultan Moulay Slimane University, Morocco H Azzouzi --- Sultan Moulay Slimane University, Morocco M Achchoub --- Sultan Moulay Slimane University, Morocco K Elfazazi --- National Agricultural Research Institute, Morocco S Salmaoui --- Sultan Moulay Slimane University, MoroccoThis work aimed to study the effect of adding alfalfa (Medicago sativa L.) and Atriplex halimus L. on biochemical properties, microbial flora, ferment silage and solar-dried cactus fruit scraps. Alfalfa and Atriplex were added to cactus silage to improve nutrient... -
Muscle ultrasound: a reliable bedside tool for dietitians to monitor muscle mass
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Lizl Veldsman --- Stellenbosch University, South Africa Alison Lupton-Smith --- Stellenbosch University, South Africa Guy A Richards --- University of the Witwatersrand, South Africa Renée Blaauw --- Stellenbosch University, South Africa -
Quality of life in participants with primary hypothyroidism on treatment at Chris Hani Baragwanath Academic Hospital
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: JM Mbuyi --- University of the Witwatersrand, South Africa S Bhana --- University of the Witwatersrand, South Africa R Daya --- University of the Witwatersrand, South Africa -
Water-quality assessment and spatial distribution of water-quality parameters of Dodoma Urban, Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OJ Mdee --- University of Dodoma, Tanzania B Mndolwa --- University of Dodoma, Tanzania N Sadiki --- University of Dodoma, TanzaniaThe study was conducted in 2022 in shallow wells and deep boreholes owned by residents, to investigate the water quality status in the emerging developing area of Dodoma Urban municipality in central Tanzania. Eighteen boreholes and five shallow wells were... -
Spatial and seasonal variation of microplastics and surface water quality of the Njoro River and Lake Nakuru ecosystems, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Petra Kienyiy Chui --- Egerton University, Kenya Bernard Kibet Kirui --- Egerton University, Kenya Meshack Amos Obonyo --- Egerton University, KenyaHigh levels of plastic pollutants threaten aquatic habitats as the plastic materials are ingested by aquatic organisms as food. This study assessed seasonal variations of microplastics and the water quality of the Njoro River and Lake Nakuru, Kenya. Selected water... -
Assessing the pertinence and usefulness of HIV and AIDS indicators for evaluating clinical care quality: Perspectives of health care professionals
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tambwe Willy Muzumbukilwa --- University of KwaZulu-Natal, South Africa Manimani Riziki Ghislain --- University of KwaZulu-Natal, South Africa Aganze Glory-Aime Mushebenge --- University of KwaZulu-Natal, South Africa Rajesh Vikram Vagiri --- University of KwaZulu-Natal, South Africa Manimbulu Nlooto --- University of KwaZulu-Natal, South AfricaFollowing a systematic review of quality indicators employed in the evaluation of clinical care for individuals with HIV and AIDS, we performed “an exploratory study” that aims to assess the clinical significance and practical applicability of these indicators from the... -
Social support mediates job demands, and burnout relation among public senior high school teachers, Ghana
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Richard Akutey --- University of Cape Coast, Ghana Daniel Apaak --- University of Cape Coast, Ghana Edward Wilson Ansah --- University of Cape Coast, GhanaWe investigated the extent to which job resources mediated the relationship between job demands and burnout among public senior high school teachers in Ghana. Participants included 1028 public senior high school teachers (female = 491) who have been teaching between... -
The contribution of leader–member exchange (LMX) to organisational sustainable development: Results and implications from Kenyan public universities study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mirriam Ogunja --- University of Electronic Science and Technology of China, China Zhao Shurong --- University of Electronic Science and Technology of China, China Yu Manjing --- University of Electronic Science and Technology of China, China Huang Rui --- University of Electronic Science and Technology of China, China Du Ying --- University of Electronic Science and Technology of China, ChinaWe aimed to establish the contribution of leader–member exchange (LMX) to sustainable development of public universities in the emerging country of Kenya. The participants were 320 employees from public universities in Kenya (female = 43.1%; middle level managers = 47.8%,... -
Perceptions and knowledge about the use of biological indicators in freshwater ecosystem monitoring in Rwanda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Nzarora --- College of Science and Technology, University of Rwanda, Rwanda C Cocquyt --- , Belgium V Nzibaza --- Center of Excellence in Biodiversity and Natural Resources Management, University of Rwanda, Rwanda V Nsengimana --- College of Science and Technology, University of Rwanda, Rwanda PJ Mugume --- Center of Excellence in Biodiversity and Natural Resources Management, University of Rwanda, Rwanda BA Kaplin --- College of Science and Technology, University of Rwanda, RwandaThe use of biological monitoring (biomonitoring) to assess water quality is recognised alongside the use of chemical and physicochemical parameters due to its ability and efficiency in providing information about both current and long-term changes. Indeed, biomonitoring is applied in... -
Determinants of rural women economic empowerment: the Case of Bahir Dar Zuria Woreda in Amhara Region, Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abate Yesigat --- Department of Economics, Hawassa University, Hawassa, Ethiopia, Walelign Awoke --- Project Planning, Monitoring and Evaluation Expert, Department of Project Management and Monitoring, Amhara Region Bureau of Women, Children and Social Affairs, Bahir Dar, Ethiopia,The issue of women's empowerment has been a topic of ongoing discussion in developing countries, considering the complex socio-demographic and cultural factors at play. Women tend to face disadvantages compared to men across various human development indicators. Therefore, it is... -
A new diatom-based multimetric index (MMI-D) for ecological health monitoring in the Tropical Rift Valley Lake (Lake Hawassa, Ethiopia)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TW Gelaw --- Debre Markos University, Ethiopia S Mengistou --- Addis Ababa University, Ethiopia PA Barker --- Lancaster University, United KingdomMultimetric assessment is one of the important tools for diagnosing, detecting and measuring impairment in ecosystem function in lentic ecosystems. It enhances detection capabilities across a broader variety of stressors and offers a more complete picture of ecological conditions than... -
Impacts of corporate governance attributes on audit quality in emerging economies: The case of India
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Reshma Kumari Tiwari --- Tezpur University, India Santi Gopal Maji --- Tezpur University, India -
A systematic literature review of blockchain technology and accounting issues: Is it a hype or hope?
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Aisa Tri Agustini --- University of Jember, Indonesia Jogiyanto Hartono Mustakini --- University of Gadjah Mada, Indonesia -
Inclusive STEM education to fight poverty and inequality: The case of South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Getachew T. Sedebo --- Tshwane University of Technology, Republic of South Africa Ajebush A. Shafi --- Tshwane University of Technology, Republic of South Africa Mammo Muchie --- Tshwane University of Technology, Republic of South Africa Michael Y. Shatalov --- Tshwane University of Technology, Republic of South AfricaPublic higher education institutions (PHEIs) are considered public resources, yet equity in Science, Technology, Engineering, and Mathematics (STEM) fields within these institutions remains a global concern. The South African government acknowledges the importance of STEM education for all, yet its... -
Risk spillovers among global oil & gas firms
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Oluwasegun B. Adekoya --- University of Maine, USA Johnson A. Oliyide --- University of Maine, USA Ademola B. Akinseye --- Tai Solarin University of Education, Nigeria Mamdouh Abdulaziz Saleh Al-Faryan --- University of Portsmouth, UKThis study examines the risk spillovers among the world’s top oil & gas firms, accounting for the role of environmental fiscal policies, economic policy uncertainty (EPU), and regulatory quality. We find evidence of high risk spillovers among the oil &... -
On p-numerical radius inequalities for commutators of operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abdelkader Frakis --- Mustapha Stambouli University, Algeria Fuad Kittaneh --- The University of Jordan, JordanIn this work, we give some p-numerical radius inequalities for operators as well as for commutators of operators. As applications, when p = ∞, we improve some earlier numerical radius inequalities for operators. Also, we refine the triangle inequalities for... -
Influence of spatio-temporal variations in precipitation and temperature on the productivity of Eastern Lake Kyoga, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: John Peter Obubu --- African Centre of Excellence for Water Management, Addis Ababa University, Ethiopia Robinson Odong --- Entomology and Fisheries Sciences, Makerere University, Uganda Seyoum Mengistou --- African Centre of Excellence for Water Management, Addis Ababa University, Ethiopia Tadesse Fetahi --- African Centre of Excellence for Water Management, Addis Ababa University, Ethiopia Tena Alamerew --- Ethiopian Institute of Water Resource, Addis Ababa University, Ethiopia Ekwacu Samuel --- Uganda National Meteorological Authority, UgandaSpatio-temporal variations in precipitation and temperature affect productivity in aquatic systems, mainly through nutrient dynamics. Shallow lakes are more vulnerable to spatio-temporal variations, yet they are an important resource for biodiversity conservation, water supply and fisheries. The eastern arm of... -
Factors influencing the quality of financial information: A systematic literature review
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Masidivinga Landu --- University of Aveiro, Portugal Jorge H. Mota --- , Portugal António Carrizo Moreira --- , Portugal Ana Maria Bandeira --- Porto School of Accounting and Business (ISCAP), Polytechnic of Porto (P.PORTO); Center for Organisational and Social Studies (CEOS.PP), PortugalPurpose: This research seeks to identify the key factors influencing the quality of financial information within the context of globalisation and complex commercial transactions. -
Exploring the role of open and distance education in empowering women technological skills in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Jane Ada Ukaigwe --- National Open University of Nigeria, Nigeria Hakeem O. Liadi --- National Open University of Nigeria, Nigeria Christiana Uchenna Ezeanya --- National Open University of Nigeria, Nigeria Olayemi Mikail Olaniyi --- National Open University of Nigeria, NigeriaThe pursuit of gender equality and women's empowerment is a crucial driver of societal and economic growth in any nation. Despite the expansion of educational opportunities, women in Nigeria still encounter major obstacles to pursuing higher education and developing their... -
Integrating rainfall data into site-specific modelling to improve forest productivity estimation of eucalypt hybrid species in coastal Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Morries Chauke --- School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, South Africa Henry Mwambi --- School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, South Africa Antonio C Ferraz-Filho --- Federal University of Piauí, BrazilThis study aimed to develop a dynamic dominant height model and explore the effects of rainfall on the growth dynamics of Eucalyptus grandis × Eucalyptus urophylla. This species is grown for wood production in South Africa, and accurately estimating site... -
Quality characteristics of forage in the sowing year of a standard perennial pasture established with annual ryegrass, barley, and berseem clover as companion crops
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hasan Beytullah Dönmez --- Çukurova University, Turkey Rustu Hatipoglu --- Kırşehir Ahi Evran University, TurkeyThis study was conducted to determine the effect of different seed sowing rates (25%, 50%, 75%, 100% of the recommended pure stand of the species) and harvesting stages (early harvest, late harvest) of annual ryegrass, barley, and berseem clover used... -
Interpolating inequalities for unitarily invariant norms and numerical radii of matrices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ahmad Al-Natoor --- Isra University, Jordan Omar Hirzallah --- The Hashemite University, Jordan Fuad Kittaneh --- The University of Jordan, JordanIn this paper, which is a continuation of our works in [9] and [10], we prove several interpolating inequalities for norms and numerical radii of matrices. Special cases of our results present refinements of some known inequalities. Among other results,... -
The roadblocks to progress: A comprehensive study on the relationship between regional institutional quality and firms’ innovation of sub-Saharan African nations
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abel Dula Wedajo --- University of Sanya, People’s Republic of China Xiao Huilin --- University of International Business and Economics (UIBE), People’s Republic of ChinaThis study examines the impact of regional institutional quality (level two) on firm-level innovation (level one) in Sub-Saharan Africa (SSA), where cultural and institutional diversity challenges frameworks derived from homogeneous contexts. Analyzing 7,578 firms across Ethiopia, Kenya, Rwanda, Tanzania, Uganda,... -
Using a low-cost drone to assess herbaceous biomass and quality in the Sahelian Rangeland ecosystems
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Haftay Hailu Gebremedhin --- College of Agriculture and Environmental Sciences, Haramaya University, Ethiopia Paulo Salgado --- Pôle Pastoralisme et Zones Sèches, Pôle de recherche de Hann, Senegal Cofélas Fassinou --- Pôle Pastoralisme et Zones Sèches, Pôle de recherche de Hann, Senegal Simon Taugourdeau --- Pôle Pastoralisme et Zones Sèches, Pôle de recherche de Hann, SenegalExisting ways of assessing rangeland plant biomass and nutritional quality mostly rely on field surveys, which are difficult to generalise across plots, along with laboratory-based techniques that entail lengthy pre-processing procedures. As a solution, drones have emerged as a promising... -
Generalized A-numerical radius inequalities in semi-Hilbert spaces through the angle between two vectors
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mojtaba Bakherad --- University of Sistan and Baluchestan, IranThis paper presents several inequalities related to the A-numerical radius in the context of semi-Hilbert space operators. By integrating modern techniques from operator theory and functional analysis, we derive new inequalities for the A-numerical radius that emphasize the unique characteristics... -
Proxy variables to represent the productive capacity in a forest growth and yield model for eucalypt hybrid plantations in north-eastern Bahia, Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Mariana Futia Taquetti --- Universidade Federal de Viçosa, Brazil Carlos Pedro Boechat Soares --- Universidade Federal de Viçosa, Brazil Helio Garcia Leite --- Universidade Federal de Viçosa, Brazil Álvaro Augusto Vieira Soares --- Universidade Federal de Uberlândia, Instituto de Ciências Agrárias, Brazil Gilson Fernandes da Silva --- Universidade Federal do Espírito Santo, BrazilThe present study aimed to evaluate proxy variables to represent the productive capacity of the sites in a forest growth and yield model for plantations of Eucalyptus urophylla × Eucalyptus grandis hybrid, considering them in a linear and a linear... -
A systematic review on executive functions in female adolescents with eating disorders: Implications on daily life and relevance to rehabilitation
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Hadeel Hamady-Saad --- University of Haifa, Israel Batya Engel-Yeger --- University of Haifa, IsraelBackground: Eating Disorders (ED) are prevalent in female adolescents and have far-reaching effects on daily participation and quality of life (QoL). Daily participation highly depends on Executive Functions (EF). Existing knowledge about EF in ED, as expressed in real life,... -
Relevance of corporation quality and environmental protection, social responsibility, and corporate governance
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Meng-Yi Liu --- Feng Chia University, Taiwan (R.O.C.) Ying-Chieh Shen --- Feng Chia University, Taiwan (R.O.C.)This study explores the relationship between corporate ESG performance, various corporate quality metrics, and the F-Score. The empirical results obtained using composite quality indicators based on traditional financial performance metrics exhibit a significant positive correlation with corporate ESG performance and... -
Wadi estuary sediments on the Moroccan Mediterranean coast: an assessment of the impact of heavy metals using phytotoxicity and genotoxicity
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Nadia Belemlih --- Scientific Institute, Mohammed V University, Morocco Ahmed Khadra --- Cadi Ayyad University, Morocco Mohamed Oubane --- Cadi Ayyad University, Morocco Tarik Louzizi --- Ibn Tofail University, Morocco Mohammed Fekhaoui --- Scientific Institute, Mohammed V University, MoroccoTo evaluate the genotoxicity in the Loukkos River estuary, chemical and toxicological analyses were performed on water and sediments collected from six wadis. Heavy metal contents (Cr, Cu, Ni, Zn, Cd, Fe, and Pb), germination tests in lettuce, turnip, and... -
Prediction of ambient air pollution with regression approach using machine learning
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bachandeep Singh Bhathal --- University Institute of Computing, Chandigarh University, India Gaurav Gupta --- Punjabi University, India Brahmaleen Kaur Sidhu --- Punjabi University, IndiaAccurate air quality prediction is vital for managing pollution and protecting public health. This study evaluates the performance of three machine learning models – Decision Tree Regression (DTR), Linear Regression (LR), and Random Forest Regression (RFR) – to forecast the... -
Access to PrEP for cis and transgender women: Developing and implementing a community-based intervention adapted to populations exposed to HIV in Mali, Morocco, and Mauritius
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mustapha Sodqi --- Association de Lutte Contre le Sida, Morocco Amal Ben moussa --- Association de Lutte Contre le Sida, Morocco Rosemary Delabre --- , France Rime Barrakad --- Association de Lutte Contre le Sida, Morocco Luis Sagaon Teyssier --- Aix-Marseille University, France Niloufer Khodabocus --- Lutte contre le SIDA, Mauritius Sofia Fathi --- Association de Lutte Contre le Sida, Morocco Fodié Diallo --- ARCAD Santé PLUS, Mali Patrice Monvoisin --- Lutte contre le SIDA, Mauritius Bintou Keita Dembele --- ARCAD Santé PLUS, Mali Annette Treebhoobun --- Lutte contre le SIDA, Mauritius Naoual Laaziz --- Association de Lutte Contre le Sida, Morocco Lahoucine Ouarsas --- Association de Lutte Contre le Sida, Morocco Daniela Rojas Castro --- , France Mehdi Karkouri --- Association de Lutte Contre le Sida, MoroccoBackground: Pre-exposure prophylaxis (PrEP) is recommended as part of a comprehensive HIV prevention approach, but its uptake among women, particularly those in key populations, remains limited. -
A comparative analysis of compliance with HIV/AIDS clinical care indicators and treatment outcomes: A case study of the Democratic Republic of Congo and South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tambwe Willy Muzumbukilwa --- School of Health Sciences, University of KwaZulu-Natal, South Africa Riziki Ghislain Manimani --- University of KwaZulu-Natal, South Africa Rajesh Vikram Vagiri --- School of Health Sciences, University of KwaZulu-Natal, South Africa Manimbulu Nlooto --- School of Health Sciences, University of KwaZulu-Natal, South AfricaBackground: Significant advancements have been made in human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) diagnosis and treatment, yet progress in quality care remains limited. To address this gap, 88 quality indicators for clinical HIV/AIDS care were evaluated. This... -
Quality assessment of groundwater in a crystalline semi-urbanised environment (Lefock watershed, Cameroon)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Lauric Tontsa --- University of Dschang, Cameroon Emile Temgoua --- University of Dschang, Cameroon Obina Chigoziem Akakuru --- Federal University of Technology, Nigeria Hara Toukou --- University of Dschang, Cameroon Guillaume Bertrand --- Univerité de Bourgogne Franche-Comté, France Patrick Lachassagne --- Université de Montpellier, FranceThis study provides an assessment of the hydrogeochemical processes influencing shallow groundwater quality in the Lefock watershed (crystalline area, Cameroon). Seventeen groundwater samples were collected in May 2021 during the rainy season. These samples were analysed for their physical characteristics... -
Assessment of the physico-chemical water quality, distribution and abundance of Macrobrachium species in Okwagbe River, Delta State, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Jerimoth Kesena Ekelemu --- Delta State University, Nigeria Alice Olok Ekwu --- University of Uyo, Nigeria Patrick Adarighofua --- University of Uyo, Nigeria Arnold Ebuka Irabor --- Dennis Osadebay University, NigeriaOkwagbe community, situated along the Okwagbe River, a tributary of River Forcados, is a notable commercial hub recognised for its shrimp harvesting and trade. A study was therefore conducted on this river to determine its water quality, and distribution and... -
Ritualised wealth and the moral spectacle: interrogating occult imagery in Nigerian media narratives
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ugochukwu Zacky Eze --- University of Nigeria, NigeriaIn this article, I examine how the Nigerian media constructs narratives of ritualised wealth as a moral spectacle that negotiates the tensions between youth aspiration, economic uncertainty and institutional failure. Using a qualitative design and thematic analysis, I interrogate ten... -
Simulated rangeland conditions and seasonal variations influence soil quality in semi-arid central South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JDJ Marx --- University of the Free State, South Africa E Kotzé --- University of the Free State, South Africa JJ van Tol --- University of the Free State, South Africa PF Loke --- University of the Free State, South AfricaThe study examined long-term effects of rangeland conditions and seasonal variations on soil quality without confounding grazing effects. Samples were collected seasonally from good, moderate, poor, bare and cultivated rangeland conditions at soil depths of 0–10 cm and analysed for... -
An estimation of liquidity effects of market microstructure changes in the Indian agricultural commodity market
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sreekha Pullaykkodi --- Manipal School of Commerce and Economics, Manipal Academy of Higher Education, IndiaThe effects of market microstructure change on the liquidity of the Indian agricultural commodity market are examined using 18 years of data by dividing it into different sub-samples. The study examines variations in market liquidity by conducting a year-wise analysis,... -
Polyconvolutions and their applications to Fredholm and Barbashin-type integral equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Luís P. Castro --- University of Aveiro, Portugal Nguyen M. Tuan --- VNU University of Education, Viet Nam National University, Viet Nam Trinh Tuan --- Electric Power University, Viet NamThis article introduces a new polyconvolution, which is studied here in the context of Lebesgue spaces with weights (under different possibilities and conditions). This means that we are looking at a convolution as an integral transform. Various properties of the... -
Berezin number inequalities for 2 × 2 operator matrices and applications
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Messaoud Guesba --- El Oued University, Algeria Fuad Kittaneh --- The University of Jordan, JordanIn this paper, we present new bounds for the Berezin numbers of 2 × 2 operator matrices, which improve and generalize the existing bounds. Some other related results are also presented. -
Grazing smarter: science-based grazing strategies, not only stocking rate, determine rangeland outcomes
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Richard Fynn --- Okavango Research Institute, University of Botswana, Botswana Kevin Kirkman --- School of Agriculture and Science, University of KwaZulu-Natal, South Africa Craig Morris --- School of Agriculture and Science, University of KwaZulu-Natal, South Africa Peter Zacharias --- Consultant in Vegetation/Animal Systems, South AfricaResearch indicates a ‘crisis’ in the search for optimal grazing strategies with experimental results suggesting that stocking rate is the primary factor influencing rangeland condition and cattle performance. However, we contend that this is a spurious conclusion, inevitably conceived by... -
Comparative study of the occurrence and distribution of parasites in pond and cage-cultured Nile tilapia (Oreochromis niloticus) in the Lake Victoria Crescent, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AN Luttamaguzi --- , Uganda JJ Kisakye --- Makerere University, Uganda T Mudumba --- CAB International, Kenya C Agoe --- National Fisheries Resources Research Institute, National Agricultural Research Organization, Uganda M Sserwadda --- Mountains of the Moon University, Uganda JK Walakira --- National Fisheries Resources Research Institute, National Agricultural Research Organization, UgandaDespite ongoing biosecurity and control efforts, aquaculture intensification in the Lake Victoria Crescent has led to a persistent increase in parasitic disease occurrence in cultured Nile tilapia. Notably, different culture systems provide different habitats and environmental conditions for parasites and...
