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Reductions in Plant Species Richness under Stands of Alien Trees and Shrubs in the Fynbos Biome
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.M. Richardson --- Jonkershoek Forestry Research Centre, I. A.W. Macdonald --- , G.G. Forsyth --- Jonkershoek Forestry Research Centre,The reduction of species richness of indigenous plants is one of the major problems associated with the presence of dense stands of invasive alien trees and shrubs in the Fynbos Biome of the Cape Province, South Africa. A synthesis was... -
The Effect of Afforestation of Indigenous Scrub Forest with Eucalyptus on Streamflow from a Small Catchment in the Transvaal, South Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.M. Bosch --- Jonkershoek Forestry Research Centre, R.E. Smith --- Jonkershoek Forestry Research Centre,A small catchment under indigenous scrub forest on the Westfalia Estate near Tzaneen in the northern Transvaal was treated by first cutting the riverine (riparian) vegetation and subsequently clearing the remainder of the catchment and establishing a Eucalyptus plantation. The... -
The Efficacy of Microclimate Shelters in Improving Seedling Survival in Re-establishment of the Clanwilliam Cedar
Item type: Journal Article • Journal: South African Forestry Journal • Authors: K.B. Higgins --- Jonkershoek Forestry Research Centre, P.T. Manders --- Jonkershoek Forestry Research Centre, A.J. Lamb --- Jonkershoek Forestry Research Centre,Microclimate shelters were shown to be extremely effective in preventing seedling mortality of the Clanwilliam cedar. Shelters made of white PVC sheeting, corrugated polypropylene and rigid polythene mesh with a transparent polythene covering increased survival rates to between 59 and... -
Feral Pigs in the Western Cape Province: Failure of a Potentially Invasive Species
Item type: Journal Article • Journal: South African Forestry Journal • Authors: S.A. Botha --- Jonkershoek Forestry Research Centre,The status of feral pig (Sus scrofa) colonies in the western Cape Province of South Africa was ascertained from the literature and from unpublished records. Of 12 colonies established during the last century, only six are extant. The populations of... -
A Description of the Westfalia Catchment Experiment to Determine the Effect on Water Yield of Clearing the Riparian Zone and Converting an Indigenous Forest to a Eucalypt Plantation
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.E. Smith --- Jonkershoek Forestry Research Centre, J.M. Bosch --- Jonkershoek Forestry Research Centre, -
Regulating Afforestation for Water Conservation in South Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.M. Bosch --- Jonkershoek Forestry Research Centre, K. von Gadow --- Faculty of Forestry,It is necessary to regulate afforestation in South Africa because of the high demand exotic forest plantations make on the scarce water resources of the country. The present procedure and information base for the regulation of afforestation with exotic plantations... -
Litterfall and Nutrient Release in Mature Pinus radiata in the South-western Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.B. Versfeld --- Division of Forest Science and Technology, CSIR, Jonkershoek F.R.C., D. G.M. Donald --- Faculty of Forestry,Fast-growing plantations of conifers have replaced areas of mediterranean shrubland in the south-western Cape. This study arises from the need to quantify the impacts of major changes in primary productivity, litterfall, and nutrient cycling in terms of the site utilisation... -
The Use of Roots to Test N, P and K Deficiencies in Eucalyptus Nutrition
Item type: Journal Article • Journal: South African Forestry Journal • Authors: John Dighton --- , HelenE. Jones --- ,Bioassays have been developed which can provide diagnostics of the nutritional status of trees. They measure the flux of N, P or Rb for K into roots from standard solutions where the rate of influx is inversely related to nutrient... -
Stimulation of Bud Production in Eucalyptus globulus by Paclobutrazol Application
Item type: Journal Article • Journal: South African Forestry Journal • Authors: S. Hetherington --- , K.M. Jones --- Department of Primary Industries New Town Research Laboratories, Australia T.B. Koen --- Department of Primary Industries New Town Research Laboratories, AustraliaTrunk injection of paclobutrazol (Clipper) significantly increased the bud crop on 7-year-old Eucalyptus globulus (Labill.) seed orchard trees, within one year of application. This is the first reported stimulation of reproduction to occur, with eucalypts, in the season of application... -
The Hydrological Effects of a Wildfire in a Eucalypt Afforested Catchment
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.F. Scott --- Division of Forest Science and Technology, Jonkershoek Forestry Research Centre, RSA R.E. Schulze --- Department of Agricultural Engineering, RSAA high-intensity wildfire through a humid, upland catchment which was partially afforested to Eucalyptus fastigata, markedly increased stormflows and caused high soil losses off the afforested slopes. Total streamflow yield was unchanged but baseflow was reduced after the fire. The... -
Aspects of the Dynamics of the High Forest at Langebos (Alexandria Forest Type)
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.J. Midgley --- Division of Forest Science and Technology, Jonkershoek Forestry Research Centre,All of the four dominant canopy species in the tall forest at Langebos appear to have recruitment bottlenecks (i.e. a relative absence of small stems). All apparently need large gaps to recruit, except Podocarpus falcatus which is shade-tolerant. Compared with... -
Are Pine Plantations “Inhospitable Seas” around Remnant Native Habitat within South-western Cape Forestry Areas?
Item type: Journal Article • Journal: South African Forestry Journal • Authors: A.J. Armstrong --- Department of Nature Conservation, South Africa H.J. van Hensbergen --- Department of Nature Conservation, South Africa D.F. Scott --- Jonkershoek Forestry Research Centre, South Africa S.J. Milton --- , South AfricaSome areas of forestry estates, including unplantable ones, may be zoned and managed for nature conservation. This paper is an analysis of the results of studies of plants, birds and small mammals at Jonkershoek, Stellenbosch, to determine whether pine plantations... -
The Effects of Riparian Clearing and Clearfelling of an Indigenous Forest on Streamflow, Stormflow and Water Quality
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.F. Scott --- Division of Forest Science and Technology, Jonkershoek Forestry Research Centre, South Africa W. Lesch --- Division of Forest Science and Technology, Jonkershoek Forestry Research Centre, South AfricaThe paired catchment method was used to measure the effects of riparian zone clearing and clearfelling on streamflow, stormflows and water quality. The forested riparian zone of a 39,6 ha, humid Northern Province catchment, amounting to 10 % of the... -
Outline of a new approach to the study of competition
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R. I. Jones --- ,Differential coefficients of five time‐dependent functions are proposed to quantify and define the following: the effect of competition on each of two competing populations, the relative aggressiveness of the populations, the competitive ability of each population with respect to the... -
Effect of selective defoliation on species in mixed swards
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R. I. Jones --- , G. W. Cross --- ,Sown pastures of Paspalum dilatatum (and other species) in Natal are subject to degradation by Eragrostis plana (mshiki) invasion. The ratio between these two grasses, growing together in small plots, was governed primarily by the relative heights, and secondarily by... -
A theoretical analysis of foraging efficiency of grazing animals
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R. I. Jones --- ,A mathematical model of the change in quantity of forage during grazing is constructed, assuming (1) that forage requirement by grazing animals is constant, and (2) that intake is equal to requirement when forage is in free supply but (3)... -
A way to measure the spread of plants from a focus
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R. I. Jones --- , P. E. Bartholomew --- ,The relative frequency of occurrence of plants (or plant parts) is determined at increasing distances from a focus, where the relative frequency is unity. The area under the resulting frequency/distance curve is determined, as a measure of spread. Effect of... -
An analysis of available techniques for estimating production of pastures without clipping
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: L. B. Symons --- , R. I. Jones --- , -
Notes on the value of paspalum vaginatum sw. As a pasture grass for saline and structureless soils
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: E. P. Theron --- , R. Ludorf --- , A. Jones --- ,Paspalum vaginatum Sw. pastures were established on soils which had been denuded and physically degraded by over‐irrigation with an industrial effluent containing a high concentration of Na2SO4. The grass not only colonized the saline areas, but was able to tolerate... -
Production curves for pastures and veld
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R.I. Jones --- , P.E. Bartholomew --- ,The Gompertz curve applied to forage cumulative yields can be specified with three or more data points (yields at known times, including a possible zero yield at the start). Good correlations between pasture experimental data and the Gompertz curve, fitted... -
Simulation modelling in agriculture: General considerations
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R. I. Jones --- ,A computer simulation model is a detailed working hypothesis about a given system. The computer does all the necessary arithmetic when the hypothesis is invoked to predict the future behaviour of the simulated system under given conditions. -
Proposed computerized cross‐index system for storage and retrieval of literature references
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: A. Smith --- , R.I. Jones --- ,Card index systems are normally not very efficient when used for cross‐indexing purposes and information retrieval, useful information frequently being lost because of poor indexing and little or no cross‐referencing. Large card index systems are often compiled by research workers... -
The systems approach in agriculture1
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R.I. Jones --- ,The “systems approach” means that decision‐rich parts of any given system are considered quantitatively and in their proper context. This is done by using models of various kinds. A model can be built if an adequate information base exists for... -
Predicting seasonal production of eragrostis curvula
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: N.G.E. Hackland --- , R.I. Jones --- ,The potential for mathematical prediction of the yield and quality of forage crops in fodder production planning is still untapped. This paper presents a multiple regression equation accounting for 88% of the variation that occurred in some 270 individual annual... -
A statistical approach to practical fodder banking
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: R.I. Jones --- Department of Agriculture (Natal Region),A fodder bank on each livestock farm is the only reliable counter to disruption of the fodder flow caused by drought and other calamities. The minimum size of the fodder bank and its rate of accumulation can be specified as... -
Carbohydrate fractions of Themeda triandra (red grass). I. Free sugars and water soluble polysaccharides
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.L. van Biljon --- Department of Biochemistry, P.L. le Roux --- Department of Biochemistry,Sucrose, glucose and fructose were the major free sugars in the leaves, stems and inflorescences of T. triandra, while small quantities of rhamnose, xylose, galactose, mannose, ribose, cellobiose, sedoheptulose and erythrose were also present. Several polysaccharides and components with lower... -
Carbohydrate fractions of Themeda triandra (red grass). II. Hemicelluloses and other cell wall consituents
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.L. van Biljon --- Department of Biochemistry, P.L. le Roux --- Department of Biochemistry,After the extraction of free sugars and water soluble polysaccharides the cell wall constituents of leaf, stem and inflorescence samples of Themeda triandra (red grass) at two stages of growth were separated into fractions by a sequence of extraction procedures... -
The effect of water stress on the efficacy of diclofop-methyl and CGA 184′927+S on wild oat (Avena fatua)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.A. Agenbag --- Department of Agronomy and Pastures, Department of Botany, Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South Africa J.J. van Biljon --- Agricultural Division, Ciba-Geigy, Republic of South AfricaThe response of wild oat (Avena fatua) to diclofop-methyl and CGA 184′927+S under conditions of water stress was assessed in a pot experiment. Treatments with 0, 8, 16 and 24% polyethylene glycol (PEG 6000) were used to impose water stress... -
Pre-emergence weed control with metolachlor/flumetsulam mixtures
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. van Biljon --- , Republic of South Africa K.J. Hugo --- , Republic of South Africa C.J. van der Merwe --- , Republic of South Africa L.J. van Wyk --- , Republic of South AfricaMetolachlor (2—chloro—6′—ethyl—N-(2—methoxy—1—methylethyl)acet—o—toluidide) / flumetsulam (2′6′—difluoro—5-methyl[1,2,4] triazolo [1,5—a] pyrimidine—2—sulfonanilide) mixtures were evaluated in 77 field experiments in maize (Zea mays L.), groundnuts (Arachis hypogaea L.), soya beans (Glycine max (L.) Merr and dry beans (Phaseolus spp). Many broadleaf weeds, including Tribulus... -
Threshold values for sulphur in soils of the main maize-producing areas of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. van Biljon --- , Republic of South Africa D. Fouche --- , Republic of South Africa A. D.P. Botha --- , Republic of South AfricaFertilizers introduced to South Africa after World War 2 contained sufficient sulphur (S) to satisfy the demands of all crops. However, dramatic shifts to high-analysis NPK fertilizers containing little or no S and restriction on sulphur dioxide emissions by industries... -
An evaluation of the basic cation saturation ratio concept in sandy soils of the Free State Province, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. van Biljon --- , Republic of South Africa D.S. Fouche --- , Republic of South Africa A. D.P. Botha --- , Republic of South AfricaResults of the first plantings of field trials conducted at six localities on sandy soils in the Free State Province of South Africa are presented. The effective cation exchange capacity (ECEC) and Ca2+, Mg2+, K+ as a percentage of the... -
The lower and upper threshold values, biological optimum and mineralization of nitrogen in the main maize producing soils of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. Van Biljon --- , 2021 Republic of South Africa D.S. Fouche --- , 2021 Republic of South Africa A.D.P. Botha --- , Republic of South AfricaThere is still no consensus in South Africa on the parameters used to advise maize farmers on the quantity of N needed for optimum yields. In order to determine the lower and upper threshold values for nitrogen (N), the biological... -
Threshold values and sufficiency levels for potassium in maize producing sandy soils of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. van Biljon --- , Republic of South Africa D.S. Fouche --- , Republic of South Africa A.D.P. Botha --- , Republic of South AfricaSouth African maize farmers apply only two thirds of the potassium (K) which is annually removed in the grain, causing a deficit of more than 13 000 tons K per season. It is expected that these maize fields will gradually... -
Maize fertilizer research over the last 25 years – an overview
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. van Biljon --- ,Maize yield as well as fertilizer practices have changed over the last 25 years. Average maize yield for South Africa increased from approximately 2.3 tons ha−1 in the early 1980s to approximately 3.5 tons ha−1 in recent years. The early... -
Anew optimum value for zinc in the main maize producing sandy soils of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. Van Biljon --- , Republic of South Africa C.A. Wright --- , Republic of South Africa D.S. Fouche --- , Republic of South Africa A.D.P. Botha --- , Republic of South AfricaSouth African farmers commenced applying zinc (Zn) during the 1960s at a rate of approximately 2 kg Zn ha−1. Although good yields were produced and Zn levels increased in South African maize fields, a recent survey revealed that maize meal... -
Music of the Wajiwaji
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: A.M. JonesFather A.M. Jones provides an in-depth analysis of a Swahili didactic song, the Wajiwaji. Six ‘Ur’-tunes are identified and compared to each verse of the text. Variations on these ‘Ur’- tunes are examined from linguistic and musical viewpoints. The original... -
Acoustic and perceptual qualities of queclaratives in Xhosa
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: C JJ Jones --- Department of African Languages, JC Roux --- Research Unit for Experimental Phonology, South AfricaThis paper reports on a study of the acoustic and perceptual qualities of queclaratives in Xhosa. Queclaratives, or statements which are question-like in function, have been studied in a number of languages of the world. Many of these studies have... -
Challenges relating to standardization in the development of an isiXhosa spelling checker
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Jackie Jones --- Department of African Languages, South Africa Kholisa Podile --- Department of African Languages, South Africa Martin Puttkammer --- Centre for Text Technology, South AfricaThe development of an isiXhosa spelling checker revealed many deviations from the standard form of orthographic words. The purpose of this article is to highlight the major challenges relating to these inconsistencies at various levels of representation. On the orthographic... -
Development of reusable resources for Human Language Technologies (HLT) applications: practice and experience
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Jackie Jones --- Department of African Languages, South Africa SonjaE. Bosch --- Department of African Languages, South Africa Laurette Pretorius --- , South Africa Danie Prinsloo --- Department of African Languages, South AfricaLanguage resources, by their very nature, serve as a repository of linguistic knowledge. They are therefore essential in the building and improvement of natural language applications. The aim of this paper is to elaborate on the practice and the experience... -
Recent population trends of African penguins Spheniscus demersus in Namibia
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. Kemper J-P. Roux P. A. Bartlett Y. J. Chesselet J. A. C. James R. Jones S. Wepener F. J. MolloyThe African penguin Spheniscus demersus is endemic to southern Africa and is listed overall as "vulnerable". Over the past century, however, the Namibian population has been severely reduced and is currently listed as "critically endangered". Recent trends at Possession, Halifax,... -
The dynamics of energy transfer in marine food chains
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: R. Jones E. W. HendersonIt is argued that, in the more productive areas of the world, fish production appears to be based on relatively short food chains. The dynamics of energy transfer are therefore largely concerned with the dynamics of relatively short food chains... -
Introduction
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Ward E. Jones --- Rhodes University, South Africa -
Neurophenomenology: an integrated approach to exploring awe and wonder1
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Lauren Reinerman-Jones --- Institute for Simulation and Training, University of Central Florida, USA Brandon Sollins --- Institute for Simulation and Training, University of Central Florida, USA Shaun Gallagher --- Department of Philosophy, USA Bruce Janz --- Department of Philosophy, USAAstronauts often report experiences of awe and wonder while traveling in space. This paper addresses the question of whether awe and wonder can be scientifically investigated in a simulated space travel scenario using a neurophenomenological method. To answer this question,... -
Queclaratives in xbosa: an acoustic analysis
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: J. Jones --- Research Unit for Experimental Phonology, South Africa J. Louw --- Research Unit for Experimental Phonology, South Africa J.C. Roux --- Research Unit for Experimental Phonology, South AfricaHierdie artikel ondersoek die akoestiese eienskappe van stellings in Xhosa wat sonder enige verskil in spelling as vrae geïnterpreteer kan word. Dié verskynsel is reeds vir verskeie wêreldtale bestudeer. In baie gevalle is die akoestiese leidrade of 'n uitdrukking 'n... -
Perceptual experiments on queclaratives in xeiosa
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: J. Jones --- Research Unit for Experimental Phonology, South Africa J. Louw --- Research Unit for Experimental Phonology, South Africa J.C. Roux --- Research Unit for Experimental Phonology, South AfricaHierdie artikel volg op die akoestiese analise van stellings en vrae soos vervat in Jones et al. (n.d.). Die fokus val hier op die perseptuele belangrikheid van akoesties relevante meganismes wat gebruik word om stellings en vrae van mekaar te... -
Do mammalian herbivores influence invertebrate communities via changes in the vegetation? Results from a preliminary survey in Kruger National Park, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M Jonsson --- Department of Forest Ecology and Management, Sweden D Bell --- Department of Wildlife, Fish, and Environmental Studies, Sweden J Hjältén --- Department of Wildlife, Fish, and Environmental Studies, Sweden T Rooke --- Department of Wildlife, Fish, and Environmental Studies, Sweden PF Scogings --- Department of Agriculture, South AfricaWe investigated the indirect influence of mammalian herbivores on invertebrates, by utilising long-term mammalian herbivore exclosures in Kruger National Park. The exclosures span three distinct habitat types (crest, footslope and riparian) on a catena. By performing invertebrate collections in the... -
Effects of previous cultivation on regeneration of Julbernadia globiflora and Brachystegia spiciformis in grazing areas of Mupfurudzi Resettlement Scheme, Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T Chinuwo --- Faculty of Agriculture, Science and Technology, South Africa E Gandiwa --- , Zimbabwe PH Mugabe --- Institute of Environmental Studies, Zimbabwe IDT Mpofu --- Animal Science Department, Faculty of Agriculture and Natural Resources, Namibia E Timpong-Jones --- College of Agriculture, Agricultural Research Centre, GhanaWe investigated the effects of previous cultivation on regeneration potential under miombo woodlands in a resettlement area, a spatial product of Zimbabwe's land reforms. We predicted that cultivation would affect population structure, regeneration, recruitment and potential grazing capacity of rangelands... -
Root volume and raising period affect field performance of Pinus patula cuttings in South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R. G. Mitchell J. Zwolinski N. B. Jones A. D. BayleyThe propagation of pines through cuttings has become a commercial means of rapidly multiplying improved genetic material for operational use in forestry companies. Cuttings of pines are produced entirely in containers in South Africa. Containers, however, can negatively affect plant... -
Shoot morphology and site climate affect re-establishment success of Pinus patula in South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R. G. Mitchell J. Zwolinski N. B. JonesOperational experience has indicated that Pinus patula generally survives poorly on sub-optimal growing sites in South Africa, particularly when planted as cuttings. This observation will become increasingly important as softwood species of genetically selected stock are deployed as cuttings in... -
The effects of ontogenetic maturation in Pinus patula – Part II: Hedge cycling and field performance
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R. G. Mitchell N. B. JonesEarly studies suggest that the juvenile period, during which favourable rooting can be achieved from Pinus patula seedling hedges, may be as short as 2 years from the date of sowing. If the effects of hedge maturation cannot be delayed,... -
Psychometric Properties and Factorial Structure of the State Trait Anxiety Inventory-Trait Version (STAI-T) in Caribbean University Students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Donna-Maria B. Maynard --- University of the West Indies, Michael H. Campbell --- University of the West Indies, Dwayne Devonish --- University of the West Indies, Teddy Leon --- University of the West Indies, Maisha K. Emmanuel --- University of the West Indies, Jonathan W. Roberti --- New College of Florida, USAThe study investigated the psychometric properties of the State Trait Anxiety Inventory—Trait Scale (STAI-T: Spielberger, 1983) in a Caribbean university student sample. Participants were 415 undergraduate students (75% female) who completed the State-Trait Anxiety Inventory-Trait Version (STAI-T; Spielberger, 1983), Beck... -
The Meaning of Emotion in the White Afrikaans Language Group: A Componential Emotion Theory Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cara Jonker --- North-West University, Potchefstroom Campus, South Africa Althea van der Merwe --- North-West University, Potchefstroom Campus, South Africa Johnny Fontaine --- Gent University, Belgium Deon Meiring --- University of Pretoria, South AfricaThis study determined the meaning of emotion in a sample of white Afrikaans-speaking adults (n=120; males =32, females=88, age range =18–48+ years). Data were collected using the Meaning Grid (Scherer, 2005). The analysis examined the factor loadings of emotion words... -
Emotional Intelligence and Wellness Among Employees Working in the Nursing Environment
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jan Alewyn Nel --- North-West University, South Africa Cara S. Jonker --- North-West University, South Africa Tinda Rabie --- North-West University, South AfricaThis study's sought to establish the relationship of emotional intelligence, job characteristics and wellness within the nursing environment. A cross-sectional survey design was used. A random probability sample (N=511; females =96.70%; white =77.10%) was taken from hospitals in three South... -
Confirming the Factor Structure of the 41-Item Version of the Schutte Emotional Intelligence Scale
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marais Bester --- North-West University, South Africa Cara S. Jonker --- North-West University, South Africa Jan Alewyn Nel --- North-West University, South AfricaThe main aim of this study was to investigate the factor structure of the 41-item version of the Schutte Emotional Intelligence Scale within a South African nursing environment. An availability non-probability sample (N =290) of nurses from hospitals in the... -
The Psychometric Properties of an Emotional Intelligence Measure within Non-Professional Counsellors in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jeanine Kathleen Pires-Putter --- North-West University, Cara Sophia Jonker --- North-West University,This study examined the psychometric properties of the Emotional Intelligence Scale (SEIS) (Schutte et al., 1998) in a sample of non-professional counsellors in South Africa. The counsellors (N = 172) were employed within various counselling services, rehabilitation services, and trauma... -
Childcare in poor urban settlements in Swaziland in an era of HIV/AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lynne JonesThis paper explores the role of the family in caring for orphans and other children in poor urban communities having some of the highest levels of HIV/AIDS prevalence in the world. A range of family forms in Swaziland was found... -
Relationships, partnerships and politics in the lives of the urban poor in AIDS-afflicted Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lynne JonesThis paper seeks to better understand how poor urban families caring for children are able to access help from beyond the kinship group in a setting where HIV prevalence has risen to over 40%. The fieldwork shows that livelihoods were... -
Sexual discourse and decision-making by urban youth in AIDS-afflicted Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lynne JonesThis article begins by considering the ethics and practicalities of researching sensitive issues with older children and young adults in the context of HIV/AIDS. As part of qualitative fieldwork in the municipality of Mbabane, Swaziland, family caregivers and learners at... -
The young, the rich, and the beautiful: Secrecy, suspicion and discourses of AIDS in the South African lowveld
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jonathan James Stadler --- Reproductive Health Research Unit and Department of Anthropology, South AfricaThis article investigates emic accounts of the AIDS deaths that have occurred in a village in the Bushbuckridge district of the South African lowveld. I argue that whilst AIDS was publicly hidden and shrouded in secrecy, private gossip created moral... -
Rumours about blood and reimbursements in a microbicide gel trial
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jonathan Stadler --- , South Africa Eirik Saethre --- Department of Anthropology, United StatesA rumour that emerged during a microbicide gel trial tells the tale of clinic staff purchasing trial participants’ blood. This paper documents the rumour and explores its divergent interpretations and meanings in relation to the context of the trial and... -
The Madikwe Forum: a comprehensive partnership for supporting governance of Botswana's HIV and AIDS response
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gavin George --- Health Economics and HIV and AIDS Division (HEARD), South Africa Candice Reardon --- Health Economics and HIV and AIDS Division (HEARD), South Africa Jonathan Gunthorp --- Health Economics and HIV and AIDS Division (HEARD), South Africa Themba Moeti --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Innocent Chingombe --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Lesego Busang --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Godfrey Musuka --- African Comprehensive HIV/AIDS Partnerships (ACHAP), BotswanaThere is a need for actors within the philanthropic sector to pursue collaborative partnerships with developing nations which could result in sustainable country-led responses to HIV and AIDS. There is also a need to evaluate the structures governing these partnerships... -
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... -
Eolimna archibaldii spec. nov. and Navigiolum adamantiforme comb. nov. (Bacillariophyceae): two possibly endemic elements of the South African diatom flora tolerant to surface water pollution
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JonathanC Taylor Horst Lange-BertalotTwo little-known diatom taxa have been encountered in the saprobic and anthropogenically impacted waters of the Vaal River, South Africa. Eolimna archibaldii, an extremely small-celled species, is described as new to science. Navicula adamantiformis Archibald is transferred to the taxonomically-appropriate... -
Non-Marine Algae of Africa. A Bibliography (1799–2010)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JonathanC Taylor --- School of Environmental Sciences and Development, South AfricaAnatoliy Levanets and Leon van Rensburg -
SOME CENSUS NOTES ON A COLONY OF SOUTH AFRICAN CLIFF SWALLOWS PETROCHELIDON SPILODERA (SUNDEVALL)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: J.J. Burgerjon --- , Canada -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.K. BROOKE --- , Rhodesia W.R. SIEGFRIED --- Cape Department of Nature Conservation, W.R. SIEGFRIED --- Cape Department of Nature Conservation, W.R. SIEGFRIED --- Cape Department of Nature Conservation, G.N. JONSSON --- , Natal B.G. DONNELLY --- , R.K. BROOKE --- , Rhodesia A.J. TREE --- , Zambia ERNEST MIDDLEMISS --- , W.J. LAWSON --- , W.J. LAWSON --- , P.A. CLANCEY --- , K. DANBROOK --- , -
NEW DISTRIBUTIONAL DATA: 4
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: J. W. H. Ferguson R. A. C. Jensen A.J. Tree R.M. Harwin A.J. Tree A.J. Tree A.J. Tree A.J. Tree W. Fraser A.J. Tree R.M. Harwin J.M. Winterbottom D. M. V. Brown J. Cranston A.C. Kemp A.J. Tree A.J. Tree B. Every A.J. Tree A.J. Tree A.J. Tree A.J. Tree W. Fraser W. Fraser K.Z. Edwards A.J. Tree A.J. Tree A.J. Tree E.O. Pike A.J. Tree A.J. Tree B. Every R.M. Harwin W. Fraser W. Fraser A.J. Tree A.J. Tree A.J. Tree A.J. Tree A.J. Tree P.S. Lockhart R.D. Nixon J.B. Kinahan G.N. Jonsson R.K. Brooke B.D. Colahan C.J. Skead C.J. Skead H. Nevill H. Nevill J. Kinahan C.J. Skead A.J. Tree B. Every A.J. Tree R.D. Nixon A.J. Tree -
THE RELATIONSHIPS OF THE AFRICAN SUGARBIRDS (PROMEROPS)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: CharlesG. Sibley --- Division of Vertebrate Zoology, Peabody Museum of Natural History, U.S.A JonE. Ahlquist --- Division of Vertebrate Zoology, Peabody Museum of Natural History, U.S.ASibley, C. G. & Ahlquist, J. E. 1974. The relationships of the African sugarbirds (Promerops). Ostrich 45: 22–30. -
OVERLAP OF BREEDING AND MOULT IN THE WHITEBROWED SPARROWWEAVER IN NORTHWESTERN BOTSWANA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P.J. Jones --- Centre for Overseas Pest Research, U.K.Jones, P. J. 1978. Overlap of breeding and moult in the Whitebrowed Sparrowweaver in northwestern Botswana. Ostrich 48:21-24. -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: C. J. O. Harrison --- Subdepartment of Ornithology, C.A. Walker --- Department of Palaeontology, P.J. Jones --- , U.K. N. J. C. Mathews --- , S. Frost --- FitzPatrick Institute, South Africa W. R.J. Dean --- , South Africa H.N. Chittenden --- , South Africa Dorothy Hall --- , C.W. Benson --- Department of Zoology, United Kingdom F.M. Benson --- Department of Zoology, United Kingdom J.H. van Niekerk --- , -
THE TIMING OF WING MOULT IN THE GREYHOODED KINGFISHER IN NIGERIA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P.J. Jones --- Centre for Overseas Pest Research, U.K.Jones, P. J. 1980. The timing of wing moult in the Greyhooded Kingfisher in Nigeria. Ostrich 51:99-106. -
REVIEWS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.P. Prŷs-Jones P. A. R. Hockey Philip Richardson M.K. Rowan BridgetL. Furness -
REVIEWS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P.A. Clancey P.A. Clancey R.K. Brooke Robert Simmons A. Berruti R.P. Prŷs-Jones M. Waltner T.M. Crowe -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: C.J. Vernon --- , South Africa W. R. J. Dean --- , South Africa W. R.J. Dean --- , C.J. Vernon --- , A.F. Boshoff --- Cape Department of Nature and Environmental Conservation, A.C. De Kock --- , H.D. Oschadleus --- , StevenM. Goodman --- Museum of Zoology and Department of Biology, USA RobertW. Storer --- Museum of Zoology and Department of Biology, USA William Clark --- , USA Yossi Leshem --- , Israel G.V. Haagner --- Manyeleti Game Reserve, D.S. Reynolds --- Manyeleti Game Reserve, G.L. Maclean --- Department of Zoology, South Africa R.P. Prys-Jones --- Percy FitzPatrick Institute of African Ornithology, South Africa J.J. Herholdt --- , South Africa N.J. Grobler --- , South Africa -
MATE COMPETITION, MATE GUARDING, AND UNUSUAL TIMING OF COPULATIONS IN THE CAPE SUGARBIRD (PROMEROPS CAFER)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: H. Walther Seiler --- , South Africa RobertP. Prŷs-Jones --- , South AfricaSeiler, H. W. & Prŷs-Jones, R. P. 1989. Mate competition, mate guarding, and unusual timing of copulations in the Cape Sugarbird (Promerops cafer). Ostrich 60:159-164. -
THE BIANNUAL PRIMARY MOULT OF ADULT WILLOW WARBLERS PHYLLOSCOPUS TROCHILUS IN EUROPE and AFRICA: AN APPLICATION OF A NEW TECHNIQUE
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: L.G. Underhill --- Department of Mathematical Statistics, R.P. Prŷs-Jones --- , U.K. S.C. Norman --- , England M. Lawn --- , EnglandThe Willow Warbler is unusual in that adults undergo primary moult twice a year, a post-nuptial moult immediately before migration southwards and a moult in the winter quarters. This paper analyses primary moult data from Finland, two localities in Britain,... -
Apparent range expansion of the Redbilled Quelea Quelea quelea in the Eastern Cape Province of South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: C.A. Whittington-Jones --- Department of Zoology and Entomology, South AfricaWhittington-Jones, C.A. 1997. Apparent range expansion of the Redbilled Quelea Quelea quelea in the Eastern Cape Province of South Africa. Ostrich 68 (2–4): 97–103. -
Review
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: CraigA. Whittington-Jones -
A preliminary assessment of congruence between biodiversity patterns in Afrotropical forest birds and forest mammals
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Neil Burgess --- The Centre for Tropical Biodiversity, Zoological Museum, Denmark Helen de Klerk --- The Percy FitzPatrick Institute, South Africa Jon Fjeldså --- The Centre for Tropical Biodiversity, Zoological Museum, Denmark Timothy Crowe --- The Percy FitzPatrick Institute, South Africa Carsten Rahbek --- The Centre for Tropical Biodiversity, Zoological Museum, DenmarkBurgess, N., de Klerk, H., Fjeldsá, J., Crowe, T. & Rahbek, R. 2000. A preliminary assessment of congruence between biodiversity patterns in Afrotropical forest birds and forest mammals. Ostrich 71 (1 & 2): 286–291. -
Sexing immature Mauritius Fodies Foudia rubra using biometrics and delayed plumage maturation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: A Cristinacce --- , Mauritius RE Cole --- , Mauritius CG Jones --- , Mauritius RVV Tatayah --- , Mauritius DJ Bell --- School of Biological Sciences, UKThere is currently no reliable, affordable method of sexing Mauritius Fodies in their first non-breeding season. Ringed immature fodies from a released population on an offshore island were caught in April and May 2005 and sexed in later breeding seasons... -
A preliminary survey of avian mortality on power lines in the Overberg, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JessicaM Shaw --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute, South Africa AndrewR Jenkins --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute, South Africa PeterG Ryan --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute, South Africa JonJ Smallie --- Wildlife and Energy Programme, South AfricaAvian mortality on power lines in South Africa is currently recorded on the Central Incident Register (CIR), which is a collation of incidentally reported cases. The true scale of the problem is unknown, so we report here on a survey... -
Die Ontwikkeling van Bergveldbestuur in Suid-Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.L. Wicht --- Fakulteit van Bosbou, F.J. Kruger --- Navorsingsbeampte, Departement van Bosbou, Jonkershoek,The development of vegetation management in the humid mountain catchments of South Africa is described. The vegetation comprises grass and fynbos veldtypes with scatterd forest remnants and is of little agricultural value. -
Stellenbosch se Groen Erfenis
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.W. van der Zel --- Department van Bosbou, Jonkershoek, -
Hydraulic Loaders in Forestry Operations
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Peter B.L. Lindgren --- Jonsereds AB. Hydraulic Loader Division, SwedenI Historical background: -
Smoother, Faster Handling—The Key to Increased Productivity in Forestry Vehicles
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Mats Eriksson --- Jonsered Division of Hiab-Foco Ab, SwedenTo achieve smoother and faster handling of timber has always been an important aim for designers of hydraulic loaders on forestry vehicles. Such loaders normally have “open-centre” hydraulic valve assemblies, in which the valves are open and oil flows freely... -
Adaptation of the United States Fire Danger Rating System to Fynbos Conditions.
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. Van Wilgen --- Jonkershoek Forestry Research Centre,The development of a fynbos fuel model for fire danger rating is described. The fuel model consists of values representing the fuel characteristics of fynbos vegetation, to be used in conjunction with weather data and a fire spread model to... -
Adaptation of the United States Fire Danger Rating System to Fynbos Conditions.
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. van Wilgen --- Jonkershoek Forestry Research Centre, South Africa R.E. Burgan --- , USAFire danger indices from nine weather stations in the Fynbos Biome were obtained using historic weather data and a fynbos fuel model as inputs for the United States National Fire Danger Rating System. The indices produced were compared with the... -
Adaptation of the United States Fire Danger Rating System to Fynbos Conditions
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. Van Wilgen --- Jonkershoek Forestry Research Centre,The development of a fynbos fuel model for fire danger rating is described. The fuel model consists of values representing the fuel characteristics of fynbos vegetation, to be used in conjunction with weather data and a fire spread model to... -
Factors Affecting the Regeneration Success of Hakea sericea
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.M. Richardson --- Jonkershoek Forestry Research Centre, B.W. van Wilgen --- Jonkershoek Forestry Research Centre,Hakea sericea is an aggressive woody invader of fynbos communities. Clearing operations aimed at the control of this weed are conducted in mountain catchment areas. This paper describes an experiment to test the effects of season of seed release in... -
German Woodworking Catalogue
Item type: Journal Article • Journal: South African Forestry Journal • Authors: E. Kes --- , J.M. Bosch --- Jonkershoek Forestry Research Centre, D. G.M. Donald -
The Effect of Season of Fire on Serotinous Proteaceae in the Western Cape and the Implications for Fynbos Management
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. van Wilgen --- Jonkershoek Forestry Research Centre, M. Viviers --- Jonkershoek Forestry Research Centre,A survey of the regeneration of serotinous Proteaceae following fire in different seasons was conducted in the Western Cape. Seedling regeneration was best following late summer-early autumn burns and differed significantly from regeneration following winter and spring burns. These results... -
Factors Influencing Burning by Prescription in Mountain Fynbos Catchment Areas
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. van Wilgen --- Jonkershoek Forestry Research Centre, D.M. Richardson --- Jonkershoek Forestry Research Centre,The fynbos vegetation of the Cape mountains is managed by applying what is termed prescribed burning. Burns are carried out under conditions of weather and fuel that are selected to ensure a safe and efficient burn. Formal prescriptions for burning... -
LETTERS TO THE EDITOR/BRIEWE AAN DIE REDAKTEUR
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. VAN WILGEN --- Jonkershoek Forestry Research Centre, -
The Effects of Shading on Nursery Grown Seedlings of the Clanwilliam Cedar
Item type: Journal Article • Journal: South African Forestry Journal • Authors: P.T. Manders --- Jonkershoek Forestry Research Centre,The effects of different levels of shading on the early growth and development of the Clanwilliam cedar are described. Seedlings exhibit a positive response in height growth and a non-significant trend of increased biomass accumulation with increased levels of shading... -
The Effects of Fire in Felled Hakea sericea and Natural Fynbos and Implications for Weed Control in Mountain Catchments
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.M. Richardson --- Jonkershoek Forestry Research Centre, Republic of South Africa B.W. Van Wilgen --- Jonkershoek Forestry Research Centre, Republic of South AfricaDense stands of the alien shrub Hakea sericea were felled and later burned accidentally under severe weather conditions. The recovery of the natural vegetation was monitored for 19 months on 12 permanent plots. Cover increased slowly to 13% and 42... -
An Assessment of the Current Status of the Clanwilliam Cedar (Widdringtonia cedarbergensis) and the Reasons for its Decline
Item type: Journal Article • Journal: South African Forestry Journal • Authors: P.T. Manders --- Jonkershoek Forestry Research Centre, South AfricaThe Clanwilliam cedar is a threatened tree species endemic to the Cederberg range of mountains in the southwestern Cape Province of South Africa. Numbers of individuals have declined in the recent historic past. Evidence is presented to confirm this decline,... -
A Comparison of Procedures to Estimate Fine Dead Fuel Moisture for Fire Behaviour Predictions
Item type: Journal Article • Journal: South African Forestry Journal • Authors: RobertE. Burgan --- Jonkershoek Forestry Research Centre,Knowledge of fine dead fuel moisture in prescribed burning is important. Three methods for calculating moisture content of fine dead vegetation are compared with values measured using a specially designed wooden crib. Field procedures for monitoring fine dead fuel moisture... -
Predicting Weather for Prescribed Burns in the South-Western Cape, Republic of South Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: S.R. Juhnke --- Jonkershoek Forestry Research Centre, R.F. Fuggle --- Department of Environmental and Geographical Science,This paper addresses the problem of predicting suitable burning weather for the south-western Cape Province by means of synoptic analysis. Weather for veld burning has to comply with limits of windspeed (hourly maximum <16 km/h), temperature (daily maximum between 18°C... -
A Preliminary Assessment of the Threat of Diseases and Pests to Widdringtonia cedarbergensis
Item type: Journal Article • Journal: South African Forestry Journal • Authors: M.J. Wingfield --- , S.L. von Broembsen --- , P.T. Manders --- Jonkershoek Forestry Research Centre,A preliminary investigation of pests and diseases of mature Widdringtonia cedarbergensis growing in natural stands and plantations in the Cedarberg was undertaken. No severe diseases or insect problems were found and only limited mortality of trees was observed. Various insects... -
BOOK REVIEW
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Dave Richardson --- Jonkershoek Forestry Research Centre, -
Anxiety: cognitive behaviour therapy with children and young people
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Jon Piko Wycliffe Yako --- Clinical Psychologist, Child and Adolescent Psychiatry Unit, -
Peer education training for sexual health and well-being in public high schools in South Africa: Is it enough to change peer educators themselves?
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: AmandaJ Mason-Jones --- Adolescent Health Research Unit, South Africa AlanJ Flisher --- Adolescent Health Research Unit, South Africa Catherine Mathews --- Adolescent Health Research Unit, South AfricaObjective: To evaluate the effects of a high school peer educator training programme on the sexual behaviour and related psychosocial outcomes of peer educators. -
Cannabis use and family history in adolescent first episode psychosis in Durban, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Saeeda Paruk --- Nelson R Mandela School of Medicine, South Africa JonathanK Burns --- Nelson R Mandela School of Medicine, South Africa Rochelle Caplan --- Semel Institute of Neuroscience and Human Behavior, David Geffen School of Medicine, USAObjectives: To investigate the clinical correlates of cannabis use in adolescents with first episode psychosis (FEP). -
Patterns of immigration to and emigration from breeding colonies by African penguins
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PA Whittington RM Randall RJM Crawford AC Wolfaardt NTW Klages BM Randall PA Bartlett YJ Chesselet R JonesOf over 20 000 African penguins Spheniscus demersus that had been flipper-banded as chicks between 1978 and 1999, 2% of those re-sighted after fledging settled to breed at non-natal colonies. This represented 14% of the banded birds that were subsequently... -
Patterns of movements of the African penguin in South Africa and Namibia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PA Whittington RM Randall BM Randall AC Wolfaardt RJM Crawford NTW Klages PA Bartlett YJ Chesselet R JonesThe direction, distance and seasonal patterns of movements of African penguins Speniscus demersus between breeding colonies were investigated for birds that had been flipper-banded between 1970 and 1998. These were comprised of 3 986 penguins banded as chicks at nests,... -
Life strategies, energetics and growth characteristics of Calanoides carinatus (Copepoda) in the Angola-Benguela frontal region
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HM Verheye W Hagen H Auel W Ekau N Loick I Rheenen P Wencke S JonesRates of daily egg production, moulting and egg hatching success, as well as total lipid content and composition of Calanoides carinatus, were measured in the region of the southern Angola Curre nt SAC), the Angola-Benguela Front (ABF) and the coastal... -
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... -
Effect of dietary protein to energy ratio on growth and nitrogenous waste production of cultured dusky kob Argyrosomus japonicus
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LD Woolley --- Department of Ichthyology and Fisheries Science, South Africa CLW Jones --- Department of Ichthyology and Fisheries Science, South Africa PJ Britz --- Department of Ichthyology and Fisheries Science, South AfricaThe effect of dietary protein to energy ratio (P:E) on the growth of dusky kob Argyrosomus japoni-cus was investigated as a first step towards formulating a practical diet for this potential mariculture species in South Africa. The effects of dietary... -
Integrated culture of silver kob Argyrosomus inodorus and bloodworm Arenicola loveni loveni in abalone farm effluent
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RD Yearsley --- Department of Ichthyology and Fisheries Science, South Africa CLW Jones --- Department of Ichthyology and Fisheries Science, South Africa PJ Britz --- Department of Ichthyology and Fisheries Science, South Africa NG Vine --- Department of Ichthyology and Fisheries Science, South AfricaSouth African abalone Haliotis midae farms utilise large volumes of seawater (c. 500–1 500 l s–1) and produce relatively dilute effluents that are potentially suitable for the integrated culture of other species. To test this hypothesis, a marine finfish, silver... -
In situ video observations of benthic megafauna and fishes from the deep eastern Mediterranean Sea off Egypt
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AR Gates --- SERPENT Project, UK DOB Jones --- SERPENT Project, UK JE Cartes --- , SpainRemotely operated vehicle (ROV) video observations were used to document benthic fauna at a hydrocarbon drilling location, at 2 720 m depth, in the poorly studied deep water off northern Egypt. The decapod Chaceon mediterraneus was the most common organism... -
Sea level changes at Ascension Island in the last half century
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PL Woodworth --- National Oceanography Centre, UK PR Foden --- National Oceanography Centre, UK DS Jones --- National Oceanography Centre, UK J Pugh --- National Oceanography Centre, UK SJ Holgate --- National Oceanography Centre, UK A Hibbert --- National Oceanography Centre, UK DL Blackman --- National Oceanography Centre, UK CR Bellingham --- National Oceanography Centre, UK VM Roussenov --- School of Environmental Sciences, UK RG Williams --- School of Environmental Sciences, UKAn exercise in ‘data archaeology’ at Ascension Island has provided an estimate of sea level change between 1955 and 2001.5 (the mid-point of a recent dataset spanning 1993–2009). That average trend of 0.93 mm y−1 (SE 0.69) compares to a... -
Shallow waters: social science research in South Africa's marine environment
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Sowman --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa D Scott --- School of Built Environment and Development Studies, Howard College Campus, South Africa L J F Green --- Department of Social Anthropology, South Africa M M Hara --- Institute for Poverty, Land and Agrarian Studies, South Africa M Hauck --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa K Kirsten --- Department of Environmental and Geographical Science, South Africa B Paterson --- Marine Research Institute, South Africa S Raemaekers --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa K Jones --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa J Sunde --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa J K Turpie --- Anchor Environmental, South AfricaThis paper provides an overview of social science research in the marine environment of South Africa for the period 1994–2012. A bibliography based on a review of relevant literature and social science projects funded under the SEAChange programme of the... -
A biomass study in Pinus radiata D. Don
Item type: Journal Article • Journal: South African Forestry Journal • Authors: A. van Laar --- Department of Forestry, Faculty of Forestry, Jonkershoek Forestry Research Station, W.S. van Lill --- Department of Forestry, Faculty of Forestry, Jonkershoek Forestry Research Station,This paper deals with a preliminary study of the aboveground biomass of Pinus radiata in the Jonkershoek State Forest. A sample of 25 twenty-nine year old trees was selected from comp. 35A. The oven-dry stem mass was estimated by subsampling... -
Somatic embryogenesis as a tool to capture genetic gain from tree breeding strategies: Risks and benefits
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Nicky Jones --- Sappi Forests Research, Shaw Research Centre,For clonal testing and ultimate commercialization of selected clonal lines, breeding programmes are reliant on vegetative propagation techniques. Somatic embryogenesis is a propagation technique that has the potential to assist with the deployment of pine clones. By virtue of its... -
The effect of applying prophylactic measures on the post-planting survival of Pinus patula in South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R. G. Mitchel --- , J. Zwolinski --- Forestry Programme, N. Jones --- Forestry Programme, T. Coutinho --- Department of Microbiology and Plant Pathology,The observed survival of Pinus patula seedlings and cuttings has, on many occasions, been inadequate in nurseries and after field planting in South Africa. There have however, been several reports that survival can be improved if a fungicide is applied... -
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... -
A single dominant Ganoderma species is responsible for root rot of Acacia mangium and Eucalyptus in Sumatra
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MPA Coetzee --- Department of Genetics, Forestry and Agricultural Biotechnology Institute (FABI), South Africa BD Wingfield --- Department of Genetics, Forestry and Agricultural Biotechnology Institute (FABI), South Africa GD Golani --- , Indonesia B Tjahjono --- , Indonesia A Gafur --- , Indonesia MJ Wingfield --- Department of Genetics, Forestry and Agricultural Biotechnology Institute (FABI), South AfricaGanoderma root rot is the most serious disease affecting commercially planted Acacia mangium in plantations in Indonesia. Numerous Ganoderma spp. have been recorded from diseased trees of this species and to a lesser extent Eucalyptus, causing confusion regarding the primary... -
Pruning quality affects infection of Acacia mangium and A. crassicarpa by Ceratocystis acaciivora and Lasiodiplodia theobromae
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: M Tarigan --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa MJ Wingfield --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa M van Wyk --- Department of Genetics, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa B Tjahjono --- , Indonesia J Roux --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South AfricaPruning (singling) is a common silvicultural practice in commercial Acacia plantations because these trees tend to have multiple stems. The wounds resulting from pruning are susceptible to infection by pathogens. Ceratocystis acaciivora and Lasiodiplodia theobromae have been shown recently to... -
Stomatal characteristics of Eucalyptus grandis clonal hybrids in response to water stress
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: AlanaB Eksteen --- School of Life Sciences, South Africa Valerie Grzeskowiak --- Sappi Forests, South Africa NickyB Jones --- Sappi Forests, South Africa NormanW Pammenter --- School of Life Sciences, South AfricaThis study describes the stomatal response occurring during water stress and subsequent recovery of three Eucalyptus grandis clonal hybrids. The aim was to investigate the degree to which stomatal conductance (g s) and stomatal density differ between the clonal hybrids... -
Book Review
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Sanet Janse van Vuuren Jonathan Taylor Annelise Gerber Carin van Ginkel -
The impact of feedlot effluent on water quality and aquatic macroinvertebrate community structure in streams of the upper Vaal River catchment, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M-N Jonker --- Centre for Aquatic Research, Department of Zoology, South Africa JHJ van Vuren --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Centre for Aquatic Research, Department of Zoology, South AfricaThe impact of three intensive feedlots on aquatic macroinvertebrate community structure under high and low flows in the upper Vaal catchment was investigated. Water quality variables recorded upstream and downstream of feedlot activity include pH, dissolved oxygen, conductivity, temperature, turbidity,... -
Towards an abalone weaning diet: evaluation of agar-bound fishmeal and spirulina as dietary ingredients
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Ismail CLW Jones PJ Britz AJ EsterhuizenSurvival of post-settlement abalone when 'weaning' them from diatoms onto macroalgae/artificial feed remains unpredictable for farmers. It is hypothesised that spirulina algae, which are high in protein, may be a suitable feed ingredient for weaning abalone. Over a period of... -
Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PG Ryan --- , South Africa MGW Jones --- , South Africa BM Dyer --- Department of Environmental Affairs, South Africa L Upfold --- Department of Environmental Affairs, South Africa RJM Crawford --- Department of Environmental Affairs, South AfricaThe second mid-summer survey of surface-nesting seabirds at the Prince Edward Island group (Marion and Prince Edward islands) was conducted during December 2008, seven years after the initial mid-summer survey. Wandering albatrosses Diomedea exulans may have decreased slightly at Prince... -
Changes in densities of Sahelian bird species in response to recent habitat degradation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: WillRL Cresswell JaredM Wilson Juliet Vickery Peter Jones Sue HoltHabitat loss in the Sahel region of West Africa has been pronounced, due to anthropogenic effects and (potentially) climate change. Although strong links have been found between conditions in the Sahel and subsequent breeding populations of certain Palaearctic migrants, the... -
Impact of Eucalyptus plantations on the avian breeding community in the East Usambaras, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JassonRM John JonathanDL KabigumilaThe nesting bird species in natural forests and Eucalyptus plantations on the Amani Plateau, East Usambara, were studied during the breeding season of September 2003 to March 2004. Some forest birds — like barbets, batis, broadbills, doves, flycatchers, greenbuls, hornbills,... -
Flexibility in the timing of post-nuptial moult among Red-billed Queleas Quelea quelea in Botswana in relation to the timing of breeding
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: PeterJ Jones RobertA Cheke Nicky BousfieldThe timing of primary moult of adult Red-billed Queleas Quelea quelea, captured as they were completing an unusually late breeding attempt at Francistown, northern Botswana, in June 2004, was compared with the timing of moult of birds breeding earlier in... -
An estimation of the rate of reproductive cheating in the Red-billed Quelea Quelea quelea
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Martin Dallimer PeterJ Jones -
Threatened bird species on two little-known mountains (Chiperone and Mabu) in northern Mozambique
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: ClaireN Spottiswoode HassamI Patel Eric Herrmann Jonathan Timberlake Julian BaylissThe montane forests of northern Mozambique and southern Malawi support several bird species of global conservation concern, and particularly in Malawi are seriously threatened by deforestation. However, the status of these in northern Mozambique remains poorly known. We report that... -
Status and roosting behaviour of Magpie Mannikins in the Eastern Cape, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Siôn Williams-Jones --- , South Africa -
The prevalence of HIV and AIDS and average demographic data in forestry contracting businesses in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: PM Basson JA Jonker JC SteenkampThe human immunodeficiency virus (HIV) and subsequent acquired immunodeficiency syndrome (AIDS) play an important role in the rural-based forestry industry in South Africa. HIV infection and AIDS are non-notifiable conditions with a serious effect on forestry contracting businesses due to... -
The effect of cutting length on the rooting and growth of subtropical Eucalyptus hybrid clones in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: RD Naidu --- , South Africa NB Jones --- , South AfricaThe length of a cutting can affect both the rooting and plug colonisation of container-grown stock. Using hedges from conventional clonebanks established in the ground, four cutting length treatments (13, 10, 8 and 5 cm) were tested using five Eucalyptus... -
Forest and fibre genomics: biotechnology tools for applied tree improvement
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: A Myburg J Bradfield E Cowley N Creux M de Castro T-L Hatherell M Mphahlele M O'Neill M Ranik L Solomon M Victor H Zhou G Galloway T Horsley N Jones T Stanger A Bayley N Edwards B JanseEucalyptus tree breeders and geneticists stand to benefit tremendously from a recently announced effort to produce the first complete genome sequence for a eucalypt tree by 2010. A milestone for eucalypt research, the project will facilitate the development of new... -
Advances in reproductive biology and seed production systems of Eucalyptus: the case of Eucalyptus globulus
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: BM Potts MH McGowen DR Williams S Suitor TH Jones PL Gore RE VaillancourtEucalyptus globulus is the main eucalypt species grown in Australian plantations. The focus on seedling deployment systems, coupled with exploitation of large, open-pollinated base populations for breeding purposes over the last two decades, has required a detailed understanding of the... -
Between Retribution and Restoration: Justice and the TRC
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Jonathan Allen [AN0001]How may a society, in a morally defensible way, confront a past of injustice and suffering, and seek to break the spell of violence and disregard for human life? I begin by demonstrating the relevance of this question to the... -
Liberalism, Communitarianism and the Project of Self
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: W.L. van der Merwe --- Department of Philosophy, South Africa C. Jonker --- Department of Philosophy, South AfricaIn this article the authors seek to conceptualize a dynamic and inclusive understanding of personal identity within multicultural democracies such as South Africa, which will draw on both the liberal and communitarian traditions’ respect for the project of self. A... -
The Function and Content of Amusement
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Ward E. Jones --- Department of Philosophy Rhodes University Grahamstown, South AfricaOnce we establish that the fundamental subject matter of the study of humour is a mental state - which I will call finding funny - then it immediately follows that we need to fmd the content and function of this... -
Are there two subspecies of Red-billed Quelea, Quelea quelea, in southern Africa?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P.J. Jones M. Dallimer R.A. Cheke P.J. MundyTwo subspecies of the Red-billed Quelea, Quelea quelea lathamii and Q. q. spoliator, have been described from southern Africa on the basis of differences in dorsal colouration in non-breeding plumage, but the validity of spoliator has often been challenged. We... -
Methods for ageing juvenile Red-billed Queleas, Queleo queleo, and their potential for the detection of ju
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P.J. Jones C.C.H. Elliott R.A. ChekeThis paper evaluates potential methods for estimating the hatching dates of free-flying juvenile Red-billed Queleas, Quelea quelea, and hence establishing their likely geographical origins and patterns of post-natal dispersal. Based on studies of captive juveniles, the progress of the post-juvenile... -
Patterns of endemism in African birds: how much does taxonomy matter?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jon FjeldsåIt has been suggested that the 'right' biogeographic patterns will only arise with a species concept reflecting the finest splitting of terminal phylogenetic branches. The significance of taxonomic resolution was assessed using distributional data for all resident African land-birds, held... -
Armoured Bush Cricket attacks on nestling Red-billed Quelea (Quelea quelea)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: RobertA Cheke PeterJ Jones Martin Dallimer StuartV Green -
A new mainland breeding locality for African Penguins, Bank and Crowned Cormorants on the Namib desert coast
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: PA Bartlett J-P Roux R Jones J Kemper -
7. SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: W.T. Miller --- , S. Rhodesia M. Colton --- , N. Rhodesia R.M. Wood Humphrey Jones C.H. Jerome S.E. Gaylard C.W. Benson -
Maxillary brown tumour: unusual presentation of parathyroid carcinoma
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: T Hannah --- Department of Surgery, United Kingdom JO Jones --- Plymouth Hospitals NHS Trust, Derriford Hospital, United Kingdom JA Akoh --- Department of Surgery, United KingdomThis is a report of a maxillary brown tumour caused by primary hyperparathyroidism (HPT) secondary to parathyroid carcinoma. A 62-year-old man presented with a large swelling in the right maxilla, which caused right-sided nasal obstruction, intermittent bleeding and diplopia. A... -
Surgical management of stress incontinence in women: The role of the family practitioner Part 1: Pre-operative issues
Item type: Journal Article • Journal: South African Family Practice • Authors: G Rienhardt --- Urogynaecology Unit, P De Jong --- Female Continence Clinic, University of Cape Town and Groote Schuur Hospital, and Christiaan Barnard Memorial Hospital,The surgical management of stress incontinence in women should encompass a combined approach by the family practitioner and the specialist. This review, in two parts, discusses the place of the family practitioner in this process. The continence mechanism, pre-operative counselling,... -
Surgical management of stress incontinence in women: The role of the family practitioner
Item type: Journal Article • Journal: South African Family Practice • Authors: G Rienhardt --- Urogynaecology Unit, P De Jong --- Female Continence Clinic,The surgical management of stress incontinence in women should encompass a combined approach by the family practitioner and the specialist. This review, in two parts, discusses the place of the family practitioner in this process. The continence mechanism, pre-operative counselling,... -
Influenza: prevention, prophylaxis and treatment
Item type: Journal Article • Journal: South African Family Practice • Authors: S Jones --- , R Jones --- ,Influenza spreads rapidly to affect 515% of the global population on an annual basis. It is estimated that influenza causes between three and five million cases of severe illness and between a quarter and half a million deaths every year... -
Percutaneous injuries in doctors in the School of Medicine, University of the Free State: incidence, reporting and adherence to precautionary and management procedures
Item type: Journal Article • Journal: South African Family Practice • Authors: M Du Toit --- Faculty of Health Sciences, South Africa D Claassen --- Faculty of Health Sciences, South Africa A Le Roux --- Faculty of Health Sciences, South Africa E Nel --- Faculty of Health Sciences, South Africa W Van Biljon --- Faculty of Health Sciences, South Africa G Joubert --- Department of Biostatistics, Faculty of Health Sciences, South Africa VJ Louw --- Division Clinical Haematology, Department of Internal Medicine, Faculty of Health Sciences, South AfricaBackground: Despite the official precautionary measures against percutaneous injuries, incidents still occur. Consequently, it is possible that healthcare workers could contract infections like HBV, HCV, HGV (hepatitis B, C and G viruses) and HIV (human immune deficiency virus). The most... -
A practical approach to urine dipstick test abnormalities in relation to kidney and urinary tract disorders in children
Item type: Journal Article • Journal: South African Family Practice • Authors: G Van Biljon --- Department of Paediatrics, Faculty of Health Sciences,The routine use of urine dipstick testing in the consulting room of the family physician has fallen into disfavour for several reasons. One of the arguments cited most often is that it is time consuming and not cost beneficial. This... -
Culture-independent detection and quantification of Fusarium circinatum in a pine-producing seedling nursery
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Gerda Fourie --- Department of Microbiology and Plant Pathology, South Africa Michael J Wingfield --- Department of Microbiology and Plant Pathology, South Africa Brenda D Wingfield --- Department of Genetics, Forestry and Agricultural Biotechnology Institute, South Africa Nicky B Jones --- Sappi Forests, Shaw Research Centre, South Africa Andrew R Morris --- Sappi Forests, Shaw Research Centre, South Africa Emma T Steenkamp --- Department of Microbiology and Plant Pathology, South AfricaThe primary symptoms associated with Fusarium circinatum infection in pine seedling nurseries are root and collar rot, shoot and tip die-back and seedling mortality. Management of this pathogen in nurseries usually involves the integration of various strategies relating to sanitation,... -
Pinus patula and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by Fusarium circinatum
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Craig M Ford --- Sappi Forests, Shaw Research Centre, South Africa Nicoletta B Jones --- Sappi Forests, Shaw Research Centre, South Africa Paxie WC Chirwa --- Department of Plant Production and Soil Science, South AfricaIn response to the Fusarium circinatum pine pathogen threat in southern Africa, research has been conducted on the development of F. circinatum-tolerant P. patula and P. patula hybrids. The objective of this study was to investigate the propagation potential of... -
Effect on nursery and field performance of Pinus patula seedlings after inoculation with Fusarium circinatum
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Nicoletta B Jones --- Sappi Forests, South Africa Craig M Ford --- Sappi Forests, South Africa Marnie E Light --- Institute for Commercial Forestry Research, South Africa Ryan L Nadel --- Institute for Commercial Forestry Research, South Africa Izette Greyling --- Department of Microbiology and Plant Pathology, Tree Protection Cooperative Programme, Forestry and Agricultural Biotechnology Institute, South Africa Gerda Fourie --- Department of Microbiology and Plant Pathology, Tree Protection Cooperative Programme, Forestry and Agricultural Biotechnology Institute, South Africa Michael J Wingfield --- Department of Microbiology and Plant Pathology, Tree Protection Cooperative Programme, Forestry and Agricultural Biotechnology Institute, South Africa Andrew R Morris --- Sappi Forests, South AfricaFusarium circinatum is an important fungal pathogen of Pinus species. In South Africa, it is the most significant pathogen of Pinus patula seedlings in forestry nurseries where it presents a substantial constraint to productivity and can continue to cause mortality... -
Re-use of seedling containers and Fusarium circinatum association with asymptomatic Pinus patula planting stock
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Andrew R Morris --- Institute for Commercial Forestry Research, South Africa Gerda Fourie --- Department of Microbiology and Plant Pathology, South Africa Izette Greyling --- Department of Microbiology and Plant Pathology, South Africa Emma T Steenkamp --- Department of Microbiology and Plant Pathology, South Africa Nicoletta B Jones --- Sappi Forests, Shaw Research Centre, South AfricaFusarium circinatum is a pathogen causing serious post-planting mortality of Pinus patula seedlings in southern Africa. Containerised planting stock that is asymptomatic but associated with F. circinatum in the nursery is thought to be the cause of this problem. The... -
Exploring risk and protective mechanisms associated with HIV infection among adolescents in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Pamela Naidoo --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Geri Donenberg --- Department of Medicine, United States Alicia Davids --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Kim Jonas --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Redwaan Vermaak --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Leickness Simbayi --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Ashraf Kagee --- Department of Psychology, South Africa Catherine Ward --- Department of Psychology, South Africa Erin Emersen --- Department of Medicine, United StatesThis study explored South African adolescents’ perceived risk and protection for HIV infection. Adolescents (N=28) with a mean age of 14.6 years receiving mental health care participated in Focus Group Discussions (FGDs) to engage in an in-depth exploration of their... -
Applied disease screening and selection program for resistance to vascular wilt in Hawaiian Acacia koa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Nicklos S Dudley --- Hawai'i Agriculture Research Center, USA Tyler C Jones --- Hawai'i Agriculture Research Center, USA Robert L James --- Plant Disease Consulting Northwest, USA Richard A Sniezko --- United States Department of Agriculture Forest Service, USA Phil Cannon --- United States Department of Agriculture, USA Dulal Borthakur --- University of Hawai'i at Manoa, USAAcacia koa is a valuable tree species economically, ecologically and culturally in Hawai'i. A vascular wilt disease of A. koa resulting from infection by the fungal pathogen Fusarium oxysporum f. sp. koae (FOXY) causes high rates of mortality in field... -
A new species of land planarian (Platyhelminthes: Tricladida: Terricola: Rhynchodemidae) from South Africa, with a list of African terrestrial planarian species
Item type: Journal Article • Journal: African Zoology • Authors: H. D. Jones --- School of Biological Sciences, 3.239 Stopford Building, University of Manchester, U.K.Othelosoma joburgi is described from Roodepoort, Gauteng province, South Africa. Preserved worms are up to 16mmlong and 3mmwide, cylindrical, plump, and ‘sick green’ in colour with no obvious stripes or markings. There is a dorsal anterior retractor muscle which causes... -
A new land planarian species of the genus Othelosoma (Platyhelminthes: Tricladida: Terricola: Rhynchodemidae) from the eastern highlands of Zimbabwe
Item type: Journal Article • Journal: African Zoology • Authors: H.D. Jones --- , U.K. M.S. Cumming --- , ZimbabweA new species of rhynchodemid flatworm, Othelosoma nyanga, is described from Rhodes Nyanga National Park in the eastern highlands of Zimbabwe. Live flatworms are yellow, with a faint dark central line dorsally and appear cylindrical in photographs. They were found... -
Haulout site selection by southern elephant seals at Marion Island
Item type: Journal Article • Journal: African Zoology • Authors: T. W. Mulaudzi --- Department of Zoology and Entomology, South Africa G. J. G. Hofmeyr --- National Zoological Gardens of South Africa, South Africa M. N. Bester --- National Zoological Gardens of South Africa, South Africa S. P. Kirkman --- National Zoological Gardens of South Africa, South Africa P. A. Pistorius --- National Zoological Gardens of South Africa, South Africa F. C. Jonker --- National Zoological Gardens of South Africa, South Africa A. B. Makhado --- National Zoological Gardens of South Africa, South Africa J. H. Owen --- Department of Statistics, South Africa R. J. Grimbeek --- Department of Statistics, South AfricaUsing data from an ongoing mark–resight programme at Marion Island, we tested empirically whether southern elephant seals prefer certain terrestrial sites to others during the breeding, moulting and winter haulouts, and whether the pattern of site use is the same... -
Aardvark burrows: a potential resource for animals in arid and semi-arid environments
Item type: Journal Article • Journal: African Zoology • Authors: G.M. Whittington-Jones --- Wildlife and Reserve Management Research Group, Department of Zoology and Entomology, South Africa R.T.F. Bernard --- Wildlife and Reserve Management Research Group, Department of Zoology and Entomology, South Africa D.M. Parker --- Wildlife and Reserve Management Research Group, Department of Zoology and Entomology, South AfricaArid and semi-arid environments are characterized by extreme fluctuations in temperature and low rainfall, which present significant challenges to the animals inhabiting these areas. However, the presence of burrows may allow animals to avoid climatic extremes and predators and may... -
A new species of Eimeria (Apicomplexa: Eimeriidae) from the endangered pink pigeon, Nesoenas mayeri (Prévost, 1843) Cheke, 2005 (Columbiformes) in Mauritius
Item type: Journal Article • Journal: African Zoology • Authors: S.J. Ball --- School of Life Sciences, Kingston University, U.K. P. Daszak --- Ecohealth Alliance, U.S.A. K.R. Swinnerton --- Mauritian Wildlife Foundation, Black River, Mauritius, and Durrell Wildlife Conservation Trust, Les Augrès Manor, Trinity, Jersey, Channel Islands, U.K. C.G. Jones --- Mauritian Wildlife Foundation, Black River, Mauritius, and Durrell Wildlife Conservation Trust, Les Augrès Manor, Trinity, Jersey, Channel Islands, U.K. K.R. Snow --- School of Health & Bioscience, University of East London, U.K.A new species, Eimeria mauritiensis (Apicomplexa: Eimeriidae) is reported from the pink pigeon, Nesoenas mayeri (Aves: Columbiformes) in Mauritius. Oocysts are sub-spherical 17.8 × 19.7 (16–19 × 18–22) μm: Shape index (mean length / mean width) 1.1. A micropyle, oocyst... -
Zooplankton and diatoms of temporary and permanent freshwater pans in the Mpumalanga Highveld region, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Luisa Riato --- Department of Paraclinical Sciences, South Africa Carin Van Ginkel --- Cripsis Environment, South Africa Jonathan C. Taylor --- School of Biological Sciences, North-West University, South AfricaThis paper provides a description of the zooplankton and epiphytic diatom communities of permanent and temporary freshwater pans in the Mpumalanga Highveld region of South Africa. Few studies have investigated the biota of pans in this area, which is seriously... -
Silence, blame and AIDS conspiracy theories among the Xhosa people in two townships in Cape Town
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jonas Samuel Sivelä --- African Studies, Department of World Cultures, FinlandConspiratorial expressions about the origins of HIV/AIDS have been recognised as an outcome of the AIDS epidemic in South Africa. This article examines the reasons behind AIDS conspiracy theories, which include a reoccurring repertory of themes, motifs and characters. In... -
Family accommodation mediates the association between anxiety symptoms in mothers and children
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Johnna D Jones --- Texas Child Study Center, USA Eli R Lebowitz --- Child Study Center, USA Carla E Marin --- Child Study Center, USA Kevin D Stark --- Texas Child Study Center, USA -
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... -
Blue Petrels Halobaena caerulea discovered breeding on Gough Island
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Peter G Ryan --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Ben J Dilley --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Christopher Jones --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Alexander L Bond --- RSPB Centre for Conservation Science, UKThe Blue Petrel Halobaena caerulea breeds at five subantarctic island groups and at islands off southern Chile in a narrow latitudinal band from 47° to 56° S on either side of the Antarctic Polar Front. We found a colony on... -
The role of hedging in the marketing of gold
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: G. T. D. Jones -
Hedging and regret minimisation: A policy for the management of foreign currency exposure
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: G T D Jones -
Investment basics XVIII Risk and return—part I
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: G T D Jones -
Investment basics XIX Risk and return—part 2
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: G T D Jones -
Investment basics XX Risk and return—Part 3
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: G T D Jones -
Combining Vasicek and Robust Estimators for forecasting systematic risk
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: GS Cloete [AN0001] PJ de Jonah [AN0001] T de Wet [AN0001] -
An introduction to realized volatility
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: IM Pagel [AN0001] PJ de Jongh [AN0001] JH Venter [AN0001] -
Effects of the market factor on portfolio diversification: the case of market crashes
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Cheoljun Eom --- School of Business, Korea Jong Won Park --- College of Business Administration, Korea Yong H. Kim --- Carl H. Lindner College of Business, USA Taisei Kaizoji --- Graduate School of Arts and Sciences, JapanThis paper investigates empirically the effects of the market factor on the degree of portfolio diversification extracted from Markowitz's mean-variance (MV) model to explore an alternative method for improving the practical usefulness of the model. It controls for various properties... -
Influence of climate variables on Cyperus papyrus stomatal conductance in Lubigi wetland, Kampala, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Opio --- Department of Biology, Uganda MB Jones --- Department of Botany, Ireland F Kansiime --- Department of Environmental Management, Uganda T Otiti --- Department of Physics, UgandaCyperus papyrus forms highly productive wetlands in tropical Africa, but the environmental control of transpirational water loss in wetlands is poorly understood. The influence of climate variables on papyrus stomatal conductance in dry and wet seasons of the year was... -
The place branding of Qatar
Item type: Journal Article • Journal: • Authors: Maaike de Jong --- European Tourism Futures Institute, Stenden University, the NetherlandsDestination branding has become popular. Countries brand themselves to draw visitors and competent expatriates and to create economic diversification. The brand emphasises the uniqueness of the place; it frames the culture and sells its way of life. In the perspective... -
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... -
Causes of prematurity in the Bloemfontein Academic Complex
Item type: Journal Article • Journal: South African Family Practice • Authors: H Brits --- Faculty of Health Science, Department of Family Medicine, South Africa M Adriaanse --- School of Medicine, South Africa D-M Rall --- School of Medicine, South Africa M Van Biljon --- School of Medicine, South Africa A Van der Walt --- School of Medicine, South Africa E Wasserman --- School of Medicine, South Africa G Joubert --- Faculty of Health Sciences, Department of Biostatistics, South AfricaBackground: Prematurity is globally the leading cause of neonatal mortality, morbidity and long-term disability. The Millennium Development Goals (MDG) of the United Nations, and specifically MDG 4, address child mortality. Neonatal mortality rates contribute to 37% of all under-five mortality,... -
Performance of EAL learners on a non-South African Articulation Test (GFTA-2)
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Sumari van Biljon --- Department of Speech-Language Pathology and Audiology, Berna Nolte --- Department of Speech-Language Pathology and Audiology, Jeannie van der Linde --- Department of Speech-Language Pathology and Audiology, Ursula Zsilavecz --- Department of Speech-Language Pathology and Audiology, Elsie Naude --- Department of Speech-Language Pathology and Audiology,Research on the various aspects of child language development in South Africa has generally been an area neglected by specialists in the study of language. In South Africa's multilingual urban settings, English is the language of mutual understanding in most... -
Personality and job satisfaction: their role in work-related psychological well-being
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Natalie Jones --- Department of Industrial Psychology and People Management, South Africa Carin Hill --- Department of Industrial Psychology and People Management, South Africa Carolina Henn --- Department of Industrial Psychology and People Management, South AfricaThis study investigated the role of work related psychological well-being in the relationship between personality and job satisfaction. Participants were 207 (females = 58.9%, blacks = 20.3%, white = 64.3%, Indian = 7.7% and Coloured = 6.8%) employees of various South African organisations. The participants completed the Ryff's Scale of... -
Clinical correlates of first episode early onset psychosis in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Saeeda Paruk --- Department of Psychiatry, Nelson R Mandela School of Medicine, Khadija Jhazbhay --- Department of Psychiatry, Nelson R Mandela School of Medicine, Keshika Singh --- Department of Psychiatry, Nelson R Mandela School of Medicine, Benn Sartorius --- Department of Public Health Medicine, School of Nursing and Public Health, Jonathan K. Burns --- Department of Psychiatry, Nelson R Mandela School of Medicine,Background: The study of first episode early onset psychosis can yield many clues to understanding the early development of psychosis and guide interventions to decrease psychosis risk and improve outcome. The aim of the study was to investigate the socio-demographic... -
Characteristics and management options of crusting soils in a smallholder farming area of the Zambezi metamorphic belt in northern Zimbabwe
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Alen Manyevere --- University of Limpopo, South Africa Courage Bangira --- Chinhoyi University of Technology, Zimbabwe Jephita Gotosa --- Bindura University of Science Education, Zimbabwe Lawrence Munjonji --- University of Limpopo, South Africa Emmanuel Chikwari --- Chemistry and Soil Research, ZimbabweCrusting and surface-sealing soils present productivity challenges to smallholder farmers despite their high inherent fertility. Crop production on crusting soils is costly due to unfavourable conditions such as surface capping and compaction, which hinder crop emergence. A study was conducted... -
The Buysdorp conundrum: constructing and articulating community and identity in Soutpansberg, Limpopo Province
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology,Coenraad de Buys, the great-grandson of Jean du Bois, a Huguenot immigrant from Calais, France, was by all accounts a formidable man. He left an indelible, often disruptive, mark on the historical, political and sociocultural landscape of South Africa. Coenraad... -
“He who pays the piper…”, the anomaly of custom and constitution local government and traditional leadership
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology, South AfricaIn December 2003 the Traditional Leadership and Governance Framework Act 2003 (No 41 of 2003) was eventually promulgated. This was the culmination of an extended process of submissions Consultation releasing of a draft White Paper workshops activities of a White... -
Exclusivity, hybridity and community: negotiating place, ethnicity and South African realities
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology,Living on a tract of land in the Soutpansberg allocated to them in 1888 by President Paul Kruger for ‘services rendered’ to the erstwhile Transvaal Republic (Zuid-Afrikaansche Republiek), is the hybrid and largely exclusive Buys community. As descendants of Jean... -
Primordialist paranoia, essentialism and South African realities: participating and observing across the ‘anthropological divide’
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology,This article interrogates the exigency of some of the current concerns of South African anthropology. The contribution is autobiographical and occasionally anecdotal; personal narrative hence shapes the mode of text development. In considering the current state of the South African... -
Antimicrobial susceptibility patterns of gonococcal isolates in Pretoria, South Africa, over a 20-year period (1984-2004)
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Y Dangor --- Department of Microbiological Pathology, M de Jongh --- Department of Microbiological Pathology, A Adam --- Medical Practitioner, A A Hoosen --- Department of Medical Microbiology,This paper reviews the susceptibility profles of Neisseria gonorrhoeae over a 20-year period in the Pretoria region. Endourethral specimens were collected from adult men with symptoms of urethritis attending primary health care clinics and private medical practitioners. These swabs were... -
Outbreaks in South Africa 2004-2011, the Outbreak Response Unit of the NICD, and the vision of an inspired leader
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: L Blumberg --- Cheryl Cohen Epidemiology Division, National Institute for Communicable Diseases, National Health Laboratory Service, G de Jong --- Cheryl Cohen Epidemiology Division, National Institute for Communicable Diseases, National Health Laboratory Service, J Thomas --- Cheryl Cohen Epidemiology Division, National Institute for Communicable Diseases, National Health Laboratory Service, B N Archer --- Cheryl Cohen Epidemiology Division, National Institute for Communicable Diseases, National Health Laboratory Service, A Cengimbo --- Cheryl Cohen Epidemiology Division, National Institute for Communicable Diseases, National Health Laboratory Service, C Cohen --- Cheryl Cohen Epidemiology Division, National Institute for Communicable Diseases, National Health Laboratory Service,The Outbreak Response Unit was established in 2004 by Prof Barry Schoub and was envisioned as a comprehensive unit for reporting of suspected communicable disease outbreaks, and for the provision of technical support for outbreak response within South Africa and... -
A New Species of Mugilicola Parasitic on South African Elvers (Copepoda, Therodamasidae)
Item type: Journal Article • Journal: Zoologica Africana • Authors: J B Jones --- Fisheries Research Division, Ministry of Agriculture & Fisheries, New Zealand P M Hine --- Fisheries Research Division, Ministry of Agriculture & Fisheries, New ZealandA new species of parasitic copepod belonging to the genus Mugilicola Tripathi, I960 (CYCLOPOIDA: THERODAMASIDAE) is described. The copepods were embedded in the buccal cavity of elvers of Anguilla mossambica caught in South African rivers. -
Digital event recorder capable of simple computations and with computer access for behavioural studies
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: C.W. Way-Jones --- Rhodes University, South Africa and the Fisheries Research Centre, A.J. Ribbirik --- Rhodes University, South Africa and the Fisheries Research Centre,An event recorder which can summate and display stored data is described. This instrument can be used to record behavioural events or sequences in the laboratory or the field and produces a punched tape record which may be read by... -
The histology of the venom-secreting apparatus of the puff-adder, Bitis Arietans
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: A.R. Lake --- Departments of General Anatomy and General Physiology, J. Hattingh --- Departments of General Anatomy and General Physiology, E. KingR --- Departments of General Anatomy and General Physiology, T.R. Trevor-Jones --- Departments of General Anatomy and General Physiology, -
Stomach content analysis of the sea barbel, Galeichthyes feliceps (Valenciennes in C & V), from the Swartvlei system, southern Cape
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: D.J. Coetzee --- Cape Department of Nature and Environmental Conservation, Jonkershoek Nature Conservation Station, Republic of South Africa R.C. Pool --- Cape Department of Nature and Environmental Conservation, Jonkershoek Nature Conservation Station, Republic of South AfricaThe diet of the sea barbel, Galeichthyes feliceps, in the Swartvlei estuarine system was investigated during the period April 1979 to March 1980. The stomachs of 393 specimens (TL 13,5 to 46,0 cm) were examined. The sea barbel appears to... -
Thermoregulatory capabilities of the woodland dormouse, Graphiurus murinus
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: C.A. Whittington-Jones --- Department of Zoology & Entomology, South Africa C.R. Brown --- Department of Zoology & Entomology, South AfricaThe woodland dormouse, Graphiurus murinus, in common with many other small rodents, enters torpor under conditions of food deprivation and low temperatures. Its thermoregulatory capabilities under more favourable conditions, however, have not been investigated. We measured metabolism and thermoregulation in... -
The use of blood transfusions in the obstetric unit of an academic hospital in South Africa
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Jayati Basu --- Specialist Obstetrician and Gynaecologist, Department of Obstetrics and Gynaecology Charlotte Maxeke Johannesburg Academic Hospital and University of the Witwatersrand, Leila Hartford --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Noziphiwo Nzama --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Chandni Dayal --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Bianca Naidoo --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Mabua Chuene --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Gina Itzikowitz --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Jonathan van Alphen-Stahl --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Mashegela Segooa --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Michelle Schehle --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital, Preshanthi Govender --- Graduate Entry Medical Programme (GEMP) III students group, Department of Obstetrics and Gynaecology, Charlotte Maxeke Johannesburg Academic Hospital,Transfusions with blood products form an essential part of obstetric practice. A retrospective record review of all mothers (26) who received blood transfusions over a period of one month in May 2010 was performed at the Charlotte Maxeke Johannesburg Academic... -
Assessment of noise pollution from electricity generators in a high-density residential area
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nwasinachi U. Menkiti --- Centre for Environmental Management and Control, Nigeria Jonah C. Agunwamba --- Centre for Environmental Management and Control, NigeriaNoise pollution associated with household electricity generators is an emerging environmental degradation in many developing nations. The aim of this study is to evaluate noise pollution from the use of household electricity generators in a high-density residential area. A survey... -
Prey selection by a reintroduced lion population in the Greater Makalali Conservancy, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Dave Druce --- School of Life & Environmental Sciences, South Africa Heleen Genis --- School of Life & Environmental Sciences, South Africa Jonathan Braak --- Makalali Private Game Reserve, South Africa Sophie Greatwood --- School of Life & Environmental Sciences, South Africa Audrey Delsink --- School of Life & Environmental Sciences, South Africa Ross Kettles --- Makalali Private Game Reserve, South Africa Luke Hunter --- School of Life & Environmental Sciences, South Africa Rob Slotow --- School of Life & Environmental Sciences, South AfricaLion prey selection was studied on the Greater Makalali Conservancy (140 km2), Limpopo Province, South Africa, in order to assist with management strategies. Monitoring was carried out between February 1998 and December 2001. Lion killed 15 species, with warthog, blue... -
Bushclumps as refugia for small mammals in two Eastern Cape conservation areas
Item type: Journal Article • Journal: African Zoology • Authors: G.M. Whittington-Jones --- Wildlife and Reserve Management Research Group, South Africa R.T.F. Bernard --- Wildlife and Reserve Management Research Group, South Africa D.M. Parker --- Wildlife and Reserve Management Research Group, South AfricaBushclumps are scattered islands of thicket-like vegetation within a matrix of more open vegetation. We investigated the role of bushclumps as refugia for small mammals, and examined the effect of a limited number of abiotic and biotic factors on their... -
Errata
Item type: Journal Article • Journal: African Zoology • Authors: T.W. Mulaudzi --- Mammal Research Institute, South Africa G.J.G. Hofmeyr --- Mammal Research Institute, South Africa M.N. Bester --- Mammal Research Institute, South Africa S.P. Kirkman --- Mammal Research Institute, South Africa P.A. Pistorius --- Mammal Research Institute, South Africa F.C. Jonke --- Mammal Research Institute, South Africa A.B. Makhado --- Mammal Research Institute, South Africa J.H.. Owen --- Department of Statistics, South Africa R.J. Grimbeek --- Department of Statistics, South AfricaIn the article ‘Haulout site selection by southern elephant seals at Marion Island’ that appeared in African Zoology43(1): 25–33 (April 2008), the institutional affiliations of the authors should have read: -
Clean Cultivation and the Establishment of Pinus Kesiyain Zambia Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: F. Endean --- Forest Department, Zambia B. E. Jones --- Forest Department, Zambia -
Yield of Cupressus Lusitanica in Ethiopia
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: T. Pukkala --- Faculty of Forestry, Finland V. Pohjonen --- Faculty of Forestry, Finland -
Seed Production Potential of a Range of Forage Legumes Under Irrigation
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: D.M.G. Njarui --- Kenya Agricultural Reseairch Institute, Kenya R.K. Jones --- Kenya Agricultural Reseairch Institute, Kenya M. Karachi --- Kenya Agricultural Reseairch Institute, Kenya -
Conservation Tillage Systems for Dryland Farming: On-Farm Research and Extension Experiences
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J Rockström --- RELMA, Kenya Lars-Ove Jonsson --- RELMA, KenyaConservation tillage covers a wide spectrum of production systems, ranging from zero-tillage systems to reduced tillage systems, using various forms of traction; manual, animal or tractor. Each conservation tillage system forms part of, and interacts with, the prevailing farming system... -
The Control of Stem Rust in Wheat (Puccinia graminisvar. Tritici)by Aerial Application of Fungicides Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: R. J. Jones --- Department of Agriculture Ol'Joro Orok, Kenya -
The Effect of Fungicides for the Control of Black Stem Rust in Wheat on the Germination of the Resulting Grain
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: R. J. Jones --- District Agricultural Office, Kenya -
A Note on Analeptes TrifasciataFabr. and Paranaleptes ReticulataThoms. (Coleop. Lamiinae) Two Tree Girdling Beetles of Tropical Africa Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones --- E.A.A.F.R.O., Kenya -
The Use of Motorized Knapsack Sprayers for Coffee Pest Control in Uganda
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John Bowden --- Research Division, Department of Agriculture, Uganda T. R. Jones --- Research Division, Department of Agriculture, Uganda K. E. Woodcock --- Research Division, Department of Agriculture, Uganda -
The Establishment and Production of a Ley
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: R. J. Jones --- District Agricultural Office, Kenya T. R. Evans --- District Agricultural Office, Kenya -
Establishment of Grass Leys by Undergrowing to Cereals
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: A. W. Peers --- Department of Agriculture, Kenya R. J. Jones --- C.S.I.R.O., Australia -
The Uganda Long Boom
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: T. R. Jones --- Department of Agriculture, Uganda -
Oemida Gahani
Distant (Cerambycidae). Its Host Plants, Host Range and Distribution Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones --- E.A.A.F.R.O., Kenya S. J. Curry --- Forest Department, Kenya -
Response of Mature Napier Grass to Fertilizers and Cattle Manure in Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: P. A. Jones --- Coffee Research Station, Kenya J. B. D. Robinson --- East African Agriculture and Forestry Research Organization, Kenya -
Hazards of International Exchange of Forest Trees and Products
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: F. M. L. Sheffield --- East African Agriculture and Forestry Research Organization, Kenya Tecwyn Jones --- East African Agriculture and Forestry Research Organization, Kenya -
East African Contributions to the Eighth British Commonwealth Forestry Conference
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones --- , Kenya, Uganda and Tanganyika -
Introduction
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones --- E.A.A.F.R.O., Kenya -
The East African Forest Insect Survey (O.D.C. 453)
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones --- E.A.A.F.R.O., Kenya W. Wilkinson --- E.A.A.F.R.O., KenyaA short resume is given of the history of forest entomology in East Africa. During the period 1957–61 the Forest Insect Survey progressed at a reduced rate due firstly to the hiatus after J. C. M. Gardner's retirement, and secondly... -
Recent Investigations of Two New Tree-Borers in the Indigenous Forests of East Africa (O.D.C. 453)
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones --- E.A.A.F.R.O., KenyaIoberlinia scheffleri Harms is a common tree in the East Usambara Mountains of Tanganyika, and Parinari excelsa subsp. holstii is the dominant tree of the Kalinzu Forest and adjacent areas of Uganda. The utilization of these two species, however, is... -
Comparison of Hand-Operated Machines for Cotton Pest Control in Uganda
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: T. R. Jones --- Department of Agriculture, Uganda -
Deterioration of Timber in use in East Africa and Its Prevention
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones [AN0001] I. A. S. Gibson [AN0001] W. E. Smith [AN0002] -
The Present World Situation in Regard to the Spread of Internationally Dangerous Forest Insects
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tecwyn Jones --- E.A.A.F.R.O., Kenya -
The Importance of Boron and NPK Fertilizers to Eucalptus in the Southern Province, Zambia
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: E. N. Cooling [AN0001] B. E. Jones [AN0002] -
Host List and Distribution of Lepidopterous Defoliators of Exotic Softwoods in East Africa
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: O. Austara --- E.A.A.F.R.O., Kenya T. Jones --- E.A.A.F.R.O., Kenya -
Coca-Cola: A Multinational's Perspective on East African Integration
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Peter Njonjo --- Coca-Cola Company, -
Transforming the African philosophical place through conversations: An inquiry into the Global Expansion of Thought (GET)
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Jonathan O. Chimakonam --- Department of Philosophy, NigeriaIt is now clear that the development in African philosophy in the last forty years or so has been in the area of metaphilosophy, the central focus of which has been on whether African philosophy is a pure philosophy. A... -
The politics of philosophy in Africa: A conversation
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Ward E. Jones --- Philosophy Department, South Africa Thaddeus Metz --- Department of Philosophy, South AfricaThe background to the present discussion is the prevalence of political and personal criticisms in philosophical discussions about Africa. As philosophers in South Africa—both white and black—continue to philosophise seriously about Africa, responses to their work sometimes take the form... -
Sounding the Cape: Music, Identity and Politics in South Africa
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Jonathan Gregory --- Queens University, Belfast, -
6.1.2 Rainfall Intensities of East African Storms
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: M. E. Jones --- Department of Geography, -
Costs and Efficiency of Mechanical Bush Clearing in Karamoja
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: P. Evans Jones --- Uganda Department of Agriculture, -
Land use Planning for Forestry in Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J. P. W. Logie --- Forestry Department, Kenya G. A. Jones --- S.C.A.A.P., -
Diel movement of smallmouth yellowfish Labeobarbus aeneus in the Vaal River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FJ Jacobs --- Kamutjonga Inland Fisheries Institute, Namibia GC O'Brien --- Aquatic Ecosystem Research Group, School of Life Sciences, South Africa NJ Smit --- Water Research Group (Ecology), Unit for Environmental Sciences and Management, South AfricaDiel movements of Orange–Vaal smallmouth yellowfish Labeobarbus aeneus (Burchell, 1822) in the Vaal River, South Africa, were determined by externally attaching radio transmitters to 11 adult fish and manually tracking them between March and May 2012. Twenty-four radio telemetry monitoring... -
Compact convex sets in 2-dimensional asymmetric normed lattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Natalia Jonard-Pérez --- Departamento de Mateḿaticas, Spain Enrique A. Sánchez-Pérez --- Instituto Universitario de Matéatica Pura y Aplicada, Universitat Polit̀ecnica de Val̀encia, SpainIn this note, we study the geometric structure of compact convex sets in 2-dimensional asymmetric normed lattices. We prove that every q-compact convex set is strongly q-compact and we give a complete geometric description of the compact convex set with... -
Taking care: Creating a non-alcoholic cocktail for Generation X
Item type: Journal Article • Journal: • Authors: Shirley Verkade --- Stenden Hotel Management School, Leeuwarden, The Netherlands Jonathan van Driel --- Stenden Hotel Management School, Leeuwarden, The Netherlands Femke Vrenegoor --- Stenden Hotel Management School, Leeuwarden, The NetherlandsThis paper reports on a Hospitality Research Project, a third-year project at Stenden Hotel Management School, dedicated to the design, creation and testing of three different non-alcoholic cocktail recipes for restaurant De Pleats in Burgum, the Netherlands. On the basis... -
A proportional integral synthesis for a variable speed wind energy conversion system using a permanent magnet synchronous generator
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Francis-Daniel Menga --- Department of Renewable Energy, Cameroon Noël Djongyang --- Department of Renewable Energy, Cameroon Danwé Raïdandi --- Department of Renewable Energy, Cameroon Réné Tchinda --- LISIE, CameroonA wind energy conversion system applied to battery charge is proposed in this paper. A permanent magnet synchronous generator (PMSG) is used as a variable speed generator in the proposed system. In order to extract the maximum power, the generator... -
The end of ubuntu or its beginning in Matolino-Kwindingwi-Metz debate: An exercise in conversational philosophy
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Jonathan O. Chimakonam --- Department of Philosophy, NigeriaMatolino and Kwindingwi in an essay “The end of ubuntu” published in this journal in 2013 argue that ubuntu has stalled both as a way of life and as an ethical theory which led them to draw the far-reaching conclusion... -
Intimate partner violence among HIV positive pregnant women in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gladys Matseke --- HIV/AIDS/STI and TB (HAST), Human Sciences Research Council, South Africa Violeta J Rodriguez --- Department of Psychiatry & Behavioral Sciences, USA Karl Peltzer --- HIV/AIDS/STI and TB (HAST), Human Sciences Research Council, South Africa Deborah Jones --- Department of Psychiatry & Behavioral Sciences, USAThe aim of the study was to determine the prevalence of intimate partner violence (IPV) and associated factors among pregnant HIV-infected women in primary health care facilities in Nkangala and Gert Sibande districts, Mpumalanga, South Africa. Participants were 673 women... -
The use of glyphosate for the management of secondary coppice regrowth in a Eucalyptus grandis × E. urophylla coppice stand in Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jonathan C Roberts --- School of Natural Resource Management, South Africa Keith M Little --- School of Natural Resource Management, South Africa Marnie E Light --- Institute for Commercial Forestry Research, South AfricaIn South Africa, commercial eucalypt stands may be regenerated through the stepwise reduction of coppice shoots following felling. The development of secondary coppice regrowth following these reduction operations results in competition with the remaining stems, possibly resulting in a reduction... -
Remittances, mobile phones and informality: Insights from Cameroon
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nathanael Ojong --- Department of Business Administration, CanadaResearch on mobile phones abound. However, the use of the mobile phone as an informal value transfer mechanism has received little attention. This paper attempts to fill this lacuna in academic literature by focusing on the ‘why’ and ‘how’ of... -
Cannabis and mental illness in adolescents: a review
Item type: Journal Article • Journal: South African Family Practice • Authors: Saeeda Paruk --- Department of Psychiatry, Nelson R Mandela School of Medicine, South Africa Jonathan K Burns --- Department of Psychiatry, Nelson R Mandela School of Medicine, South AfricaThis article reviews the literature on the association between cannabis exposure and mental illness in adolescents and provides the clinician with an evidence base to address cannabis use with teenagers. Traditionally cannabis was considered a benign recreational drug with low... -
Black Jack: Do company benefits and feelings have an impact on my happiness?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Rosa Naudé --- TREES (Tourism Research in Economic Environs and Society), South Africa Stefan Kruger --- TREES (Tourism Research in Economic Environs and Society), South Africa Melville Saayman --- TREES (Tourism Research in Economic Environs and Society), South Africa Cara Jonker --- School of Human Resource Sciences, South Africa Muzaffer Uysal --- TREES (Tourism Research in Economic Environs and Society), South AfricaThe aim of this study was to determine whether casino employees’ benefits and their feelings about the company influence their experienced happiness. A total of 1 502 casino employees were surveyed (females = 57%; males = 43%). They completed a... -
Voluntary medical male circumcision for HIV prevention in fishing communities in Uganda: the influence of local beliefs and practice
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Martin Mbonye --- MRC/UVRI Uganda Research Unit on AIDS, Uganda Monica Kuteesa --- MRC/UVRI Uganda Research Unit on AIDS, Uganda Janet Seeley --- MRC/UVRI Uganda Research Unit on AIDS, Uganda Jonathan Levin --- School of Public Health, Faculty of Health Sciences, South Africa Helen Weiss --- MRC Tropical Epidemiology Group, United Kingdom Anatoli Kamali --- MRC/UVRI Uganda Research Unit on AIDS, UgandaLocal beliefs and practices about voluntary medical male circumcision (VMMC) may influence uptake and effectiveness. Data were gathered through interviews with 40 people from four ethnically mixed fishing communities in Uganda. Some men believed that wound healing could be promoted... -
Morbidity and nutrition status of rural drug-naïve Kenyan women living with HIV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charlotte G Neumann --- David Geffen School of Medicine, USA Winstone Nyandiko --- USAID – Academic Model Providing Access to Healthcare (AMPATH) Partnership, Kenya Abraham Siika --- USAID – Academic Model Providing Access to Healthcare (AMPATH) Partnership, Kenya Natalie Drorbaugh --- Jonathan and Karin Fielding School of Public Health, USA Goleen Samari --- Jonathan and Karin Fielding School of Public Health, USA Grace Ettyang --- School of Public Health, College of Health Sciences, Kenya Judith A Ernst --- Indiana University School of Health & Rehabilitation Sciences, USAThis paper describes morbidity in a group of HIV-positive drug-naïve rural women in western Kenya. A total of 226 drug-naïve HIV-positive women were evaluated for baseline morbidity, immune function, and anthropometry before a food-based nutrition intervention. Kenyan nurses visited women... -
Public-Private Partnerships in Africa: Challenges and Opportunities for Future Management Research
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Bernadine J. Dykes --- Alfred Lerner College of Business & Economics, USA Carla D. Jones --- College of Business Administration, USAPublic-private partnerships (PPPs) are cooperative arrangements between governments and multinational corporations (MNCs) that are created to finance, construct and manage infrastructure projects. PPPs are a means for governments to gain much-needed private sector investment and expertise for economic development. Historically,... -
Prevention of mother-to-child transmission (PMTCT) implementation in rural community health centres in Mpumalanga province, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Guillermo Prado --- Center for Prevention Implementation Methodology (CePIM) for Drug Abuse and Sexual Risk Behavior, USA Viviana Horigian --- Florida Node Alliance of the National Drug Abuse Treatment Clinical Trials Network, USA Stephen Weiss --- Department of Psychiatry and Behavioral Sciences, USA Ryan Cook --- Department of Psychiatry and Behavioral Sciences, USA Sibusiso Sifunda --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Deborah Jones --- Department of Psychiatry and Behavioral Sciences, USAThis study explores organisational and individual provider influences on prevention of mother-to-child transmission (PMTCT) implementation at 12 community health centres (CHCs) in a rural South African setting. Clinic staff members (N = 103; females = 86%, nurse managers = 9.7%,... -
The role of proline and root traits on selection for drought-stress tolerance in soybeans: a review
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Obed J Mwenye --- Department of Plant Sciences, South Africa Leon van Rensburg --- Department of Soil, Crop and Climate Sciences, South Africa Angeline van Biljon --- Department of Plant Sciences, South Africa Rouxléne van der Merwe --- Department of Plant Sciences, South AfricaDrought stress is a major limiting factor in soybean production. It reduces both the yield and its components. This is dependent on the level and occurrence of drought stress with respect to the growth stages of the plants. Breeding for... -
Can the philosophy curriculum be Africanised? An examination of the prospects and challenges of some models of Africanisation
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Jonathan O. Chimakonam --- Department of Philosophy, NigeriaBy the year 2010 I had begun to seriously question the type of philosophy we learn and teach in universities in sub-Saharan Africa. I also questioned the technique of curriculum deployment. But besides the technique of curriculum deployment which can... -
Macroinvertebrates as bioindicators of water quality in the Mkondoa River, Tanzania, in an agricultural area
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MJ Shimba --- Department of Biotechnology and Bioinformatics, FE Jonah --- Department of Fisheries and Aquatic Sciences, GhanaThe suitability of using macroinvertebrates as bioindicators of stream water quality was tested in the Mkondoa River in an agricultural area at Kilosa, using the rapid bioassessment protocol. The family biotic index (FBI) showed marked variation in water quality along... -
Effects of seed and seedling predation by small mammals on seedling recruitment of Protea neriifolia in Swartboskloof, Cape Province
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: S.A. Botha --- Department of Water Affairs and Forestry, Republic of South Africa D.C. Le Maitre --- CSIR Division of Forest Science and Technology, Jonkershoek Forestry Research Centre, Republic of South AfricaSeed and seedling predation by small mammals, thought to be significant factors controlling the recruitment of Proteaceae in fynbos shrublands, were studied in a fynbos shrubland before and after a fire in March 1987. Seeds of Protea neriifolia R.Br. were... -
The place branding of Qatar
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Maaike de Jong --- European Tourism Futures Institute, Stenden University, the NetherlandsDestination branding has become popular. Countries brand themselves to draw visitors and competent expatriates and to create economic diversification. The brand emphasises the uniqueness of the place; it frames the culture and sells its way of life. In the perspective... -
Taking care: Creating a non-alcoholic cocktail for Generation X
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Shirley Verkade --- Stenden Hotel Management School, The Netherlands Jonathan van Driel --- Stenden Hotel Management School, The Netherlands Femke Vrenegoor --- Stenden Hotel Management School, The NetherlandsThis paper reports on a Hospitality Research Project, a third-year project at Stenden Hotel Management School, dedicated to the design, creation and testing of three different non-alcoholic cocktail recipes for restaurant De Pleats in Burgum, the Netherlands. On the basis... -
Nest success of the Indian House Crow Corvus splendens: an urban invasive bird species in Dar es Salaam, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Moses Joel Shimba --- School of Biological Sciences, The University of Dodoma, Tanzania Fredrick Ekow Jonah --- Department of Fisheries and Aquatic Sciences, GhanaNest success of the Indian House Crow Corvus splendens was studied in the urban area of Dar es Salaam, Tanzania, in late March to early May 2011. The study investigated nest success of the Indian House Crow in different tree... -
What if there were no whites in South Africa?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jonathan Jansen --- University of the Free State, South Africa -
The abundance of an invasive freshwater snail Tarebia granifera (Lamarck, 1822) in the Nseleni River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RW Jones --- Department of Zoology and Entomology, South Africa JM Hill --- Department of Zoology and Entomology, South Africa JA Coetzee --- Department of Botany, South Africa TS Avery --- Department of Biology and Mathematics & Statistics, Canada OLF Weyl --- Centre for Invasion Biology, South Africa MP Hill --- Department of Zoology and Entomology, South AfricaThe invasive freshwater snail Tarebia granifera (Lamarck, 1822) was first reported in South Africa in 1999 and it has become widespread across the country, with some evidence to suggest that it reduces benthic macroinvertebrate biodiversity. The current study aimed to... -
Substance use in adolescents with mental illness in Durban, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Bhoodeo Taukoor --- Department of Psychiatry, Nelson R. Mandela School of Medicine, South Africa Saeeda Paruk --- Department of Psychiatry, Nelson R. Mandela School of Medicine, South Africa Enver Karim --- Department of Psychiatry, Nelson R. Mandela School of Medicine, South Africa Jonathan K. Burns --- Department of Psychiatry, Nelson R. Mandela School of Medicine, South AfricaComorbid substance use in adolescents with mental illness is often an indicator of poor treatment outcome. This study aims to determine the prevalence of, and associated risk factors for, substance use in adolescents with mental illness attending a mental health... -
Non-proper edge-colouring of graphs and hereditary graph properties
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Samantha Dorfling --- Department of Mathematics and Applied Mathematics, South Africa Elizabeth C.M. Maritz --- Department of Mathematics and Applied Mathematics, South Africa Jon Smit --- Department of Mathematics and Applied Mathematics, South Africa Tomáš Vetrík --- Department of Mathematics and Applied Mathematics, South AfricaA graph property is any isomorphism-closed class of graphs. A property is hereditary if, whenever a graph G is in , and H is a subgraph of G, then H is also in . For a hereditary graph property ,... -
Effect of seed size on field survival and growth of Eucalyptus in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: RD Naidu NB JonesThis study was established to determine the effect of seed size on nursery performance, field survival and growth. Results indicated that germination was greater for larger seed whereas the smallest seeds germinated poorly. In addition, seedling survival in the nursery... -
Primary care screening and risk factors for postnatal depression in Zimbabwe: A scoping review of literature
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: James January --- Department of Psychiatry, Nelson R. Mandela School of Medicine, South Africa Jonathan Burns --- Department of Psychiatry, Nelson R. Mandela School of Medicine, South Africa Moses Chimbari --- School of Nursing and Public Health, Howard Campus, College of Health Sciences, South AfricaPostnatal depression (PND) exerts a significant burden on the global public health system, globally affecting approximately 10 to 20% of women. Despite the recently reported high prevalence of PND in Zimbabwe, it is rarely diagnosed or appropriately managed in primary... -
Desiccant herbicides tested for the preparation of fire-break tracer lines, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Keith Little --- School of Natural Resource Management, South Africa Jonathan Roberts --- School of Natural Resource Management, South AfricaOver the past 32 years, 75 599 ha of plantations within South Africa have been lost through fire. Fire prevention, in the form of firebreaks on landholding boundaries, are required (by law) by landowners from whose land a fire might... -
Operation and maintenance of back-up photovoltaic systems: An analysis based on a field study in Cameroon
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kodji Deli --- Department of Renewable Energy, Higher Institute of the Sahel, Cameroon Etienne Tchoffo Houdji --- Department of Renewable Energy, Higher Institute of the Sahel, Cameroon Noel Djongyang --- Department of Renewable Energy, Higher Institute of the Sahel, Cameroon Donatien Njomo --- Environmental Energy Technologies Laboratory (EETL), Department of Physics, Faculty of Science, CameroonThis work is an analysis of the data collected from 20 photovoltaic installations all over Cameroon. The objectives are to study the causes of the breakdown of the different installations and propose maintenance strategies to solve them and to evaluate... -
Effects of kelp Ecklonia maxima inclusion in formulated feed on the growth, feed utilisation and gut microbiota of South African abalone Haliotis midae
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Nel --- Department of Ichthyology and Fisheries Science, South Africa BI Pletschke --- Department of Biochemistry and Microbiology, South Africa CLW Jones --- Department of Ichthyology and Fisheries Science, South Africa J Kemp --- Department of Ichthyology and Fisheries Science, South Africa G Robinson --- Department of Ichthyology and Fisheries Science, South Africa PJ Britz --- Department of Ichthyology and Fisheries Science, South AfricaThe effect of kelp Ecklonia maxima inclusion in formulated feeds on abalone growth and gut bacterial communities has not been previously investigated in South Africa. An eight-month on-farm growth trial was conducted with sub-adult Haliotis midae (∼43 mm shell length)... -
Appraisal of geothermal resources and use in Cameroon
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Janvier Domra Kana --- Department of Petroleum and Gas Exploration, Cameroon Noël Djongyang --- Department of Renewable Energy, Cameroon Danwé Raïdandi --- Department of Materials Processing, Architecture and Habitat, Cameroon Brandan Tito Ramadhan --- Geophysics Laboratory, Department of Physics, Faculty of Science and Mathematics, IndonesiaThis paper deals with resources and opportunities of direct and indirect use of geothermal energy in Cameroon. Currently, no serious exploration and utilization of this resource exists. The primary form of utilization of geothermal energy is mainly condensation steam for... -
Increasing the labour epidural rate in a state hospital in South Africa: challenges and opportunities
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Stephanus F van Zyl --- Department of Anesthesiology and Critical Care, South Africa Jonathan L Burke --- Department of Anesthesiology and Critical Care, South AfricaBackground: A 2012 audit on labour epidural analgesia rates in Tygerberg Hospital (TBH) revealed that only 2.2% of labouring parturients received epidural analgesia. This unacceptably low number necessitated a dedicated epidural service that was subsequently initiated in June 2014 by... -
The clinical impact of a positive family history of psychosis or mental illness in psychotic and non-psychotic mentally ill adolescents
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Saeeda Paruk --- Department of Psychiatry, South Africa Khatija Jhazbhay --- Department of Psychiatry, South Africa Keshika Singh --- Department of Psychiatry, South Africa Benn Sartorius --- Department of Psychiatry, South Africa Jonathan K Burns --- Department of Psychiatry, South AfricaBackground: A family history of psychosis is associated with negative clinical characteristics of psychosis. -
Why suggesting Australian redclaw crayfish Cherax quadricarinatus as biological control agents for snails is a bad idea
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl --- DST/NRF Research Chair for Inland Fisheries and Freshwater Ecology, South Africa AL Nunes --- Centre for Invasion Biology, South Africa BR Ellender --- Centre for Invasion Biology, South Africa PSR Weyl --- Center for Agriculture and Biosciences International (CABI), Switzerland AC Chilala --- Ministry of Agriculture, Zambia FJ Jacobs --- Kamutjonga Inland Fisheries Institute, Namibia M Murray-Hudson --- University of Botswana Okavango Research Institute (ORI), Botswana RJ Douthwaite --- Kafue River Trust, Holly Oast, Hode Lane, Bridge, United Kingdom -
Two cases of probable hybridisation between the pufferfishes Arothron meleagris (Anonymous 1798) and A. nigropunctatus (Bloch and Schneider 1801) on a fringing reef at Réunion Island
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P Bourjon --- Les Sentinelles du Récif, réseau d’observateurs volontaires de la Réserve Naturelle Marine de La Réunion [‘Sentinels of the Reef’, Volunteer Observers Network of the Réunion Marine Park] (GIP–RNMR), Réunion Island B Chanet --- Institut de Systématique, FranceTwo individuals displaying mixed features of the colour patterns distinctive of Arothron meleagris and A. nigropunctatus were observed on the fringing reef at Réunion Island, between September 2012 and August 2013. Because many hybrid fish have been first identified through... -
Varied diet and opportunistic foraging in the Ethiopian Bush-crow Zavattariornis stresemanni, an Endangered generalist
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Samuel EI Jones --- School of Biological Sciences, UK Andrew J Bladon --- Department of Zoology, UK Nigel J Collar --- BirdLife International, UK Galgalo Dadacha --- Borana National Park Headquarters, Ethiopia Jarso Denge --- Borana National Park Headquarters, Ethiopia Paul F Donald --- Centre for Conservation Science, UKThe Ethiopian Bush-crow Zavattariornis stresemanni is an endangered, co-operatively breeding southern Ethiopian endemic with a remarkably restricted range (c. 6 000 km2). The species’ range was recently found to be almost perfectly predicted by an envelope of cooler, drier and... -
Tumour and treatment factors influencing the outcome of chemo-radiation in stage IIB cervical cancer: a single institution experience
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Mtabeni Jemu --- Division of Radiation Oncology, South Africa Leon van Wijk --- Division of Radiation Oncology, South Africa Michelle Parker --- Radiobiology Section, Division of Radiation Oncology, South Africa Glenn Jones --- School of Clinical Medicine and Research, BahamasObjective: This study examined the effects of treatment and tumour factors on the overall survival of patients completing chemo-radiation for stage IIB cervical cancer, to identify modifiable factors that might improve outcome. -
Development of a Setswana tonal minimal pair word list as research tool
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Gail Jones --- Department of Speech-Language Pathology and Audiology, South Africa Anita van der Merwe --- Department of Speech-Language Pathology and Audiology, South Africa Jeannie van der Linde --- Department of Speech-Language Pathology and Audiology, South Africa Mia le Roux --- Department of Speech-Language Pathology and Audiology, South AfricaThis study reports on the development of a Setswana tonal minimal pair word list, which could be implemented as research tool in the field of Bantu language linguistics and in speech pathology in South Africa. The development of the list... -
RETRACTED ARTICLE: The inflation hedging ability of individual shares: Evidence from the Johannesburg Stock Exchange (JSE)
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Johannes Hendrik van Rooyen --- Department of Business Management, South Africa Daniel Lee Jones --- Department of Business Management, South Africa -
Local compactness in right bounded asymmetric normed spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Natalia Jonard-Pérez --- Departamento de Matemáticas, Facultad de Ciencias, México Enrique A. Sánchez-Pérez --- Instituto Universitario de Matemática Pura y Aplicada, Universitat Politécnica de Valéncia, SpainWe characterize the finite dimensional asymmetric normed spaces which are right bounded and the relation of this property with the natural compactness properties of the unit ball, such as compactness and strong compactness. In contrast with some results found in... -
A comparison of the cost-effectiveness of different eucalypt cut-stump control management options to reduce competition from coppice regrowth during stand establishment in Mpumalanga, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jonathan C Roberts --- School of Natural Resource Management, South Africa Keith M Little --- School of Natural Resource Management, South Africa Marnie E Light --- Institute for Commercial Forestry Research, South AfricaSelected cut-stump (Cut_surface) and basal frill (Basal_frill) treatments were tested on Eucalyptus macarthurii cut stumps that had previously been coppiced multiple times. Treatments included the application of herbicide (triclopyr as an amine salt, 360 g L−1), either to the cut-surface... -
Sexual risk behaviour among HIV-infected women in the first twelve months after delivery in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Geoffrey Setswe --- HIV/AIDS Management, South Africa Gladys Matseke --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Shandir Ramlagan --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Stephen M. Weiss --- Department of Psychiatry and Behavioural Sciences, USA Violeta J. Rodriguez --- Department of Psychiatry and Behavioural Sciences, USA Sibusiso Sifunda --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Ryan Cook --- Department of Epidemiology, USA Tae Kyoung Lee --- Department of Public Health Sciences, USA Deborah Jones --- Department of Psychiatry and Behavioural Sciences, USAThis study aimed to assess sexual risk behaviour and its social correlates in HIV-infected women living in rural South Africa at six and twelve months post-partum. Participants were 699 HIV-positive women recruited prenatally by systematic sampling from twelve community health... -
Effect of graded levels of dietary carbohydrate on growth, feed utilisation and intestinal microbial community structure in dusky kob Argyrosomus japonicus fed a pelleted diet
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NC Mabasa --- Department of Ichthyology and Fisheries Science, South Africa PJ Britz --- Department of Ichthyology and Fisheries Science, South Africa CLW Jones --- Department of Ichthyology and Fisheries Science, South Africa A Nel --- Department of Ichthyology and Fisheries Science, South AfricaThe ability to utilise carbohydrates is limited for many predatory marine fishes. Graded levels of dietary carbohydrate (4.1–24.6%) were formulated using pregelatinised maize starch, to determine optimal levels for dusky kob Argyrosomus japonicus, an emerging mariculture finfish for which pelleted... -
Perceived tourist values of the Museum of African Art
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Hai-yang Meng --- School of Economics and Management, China Seung-hye Jung --- School of Dance, South Korea Jong-pil Yu --- Department of Business Administration, South Korea Ki-hyung Bae --- Department of Economics & Trade, South Korea Byong-ju An --- School of Dance, South Korea Joon-ho Kim --- Department of Business Administration, South KoreaThis study investigated the effects of perceived values (personal, artistic, and sociocultural) of tourists’ attitude and behavioural intention to visit Africa. Participants were tourists (176 men and 124 women) who visited the Museum of African Art based on Jeju Island... -
Using deliberative foresight to envision a neo-carbon energy innovation ecosystem – a case study of Kenya
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joni Karjalainen --- Finland Futures Research Centre (FFRC), Finland Sirkka Heinonen --- Finland Futures Research Centre (FFRC), FinlandForesight is a pragmatic futures studies approach as structured debate about future-related topics. Deliberative foresight addresses stakeholders affected by specific futures. This paper goes beyond a low-carbon strategy to present the potential of futures based on renewable energy. In the... -
The Informal Economy in pan-Africa: Review of the Literature, Themes, Questions, and Directions for Management Research
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Katia M. Galdino --- Georgia Southern University, USA Moses N. Kiggundu --- Sprott School of Business, Canada Carla D. Jones --- Sam Houston State University, USA Sangbum Ro --- University of Tampa, USAThe informal economy is an important phenomenon in African countries, accounting for up to 90% of the jobs in the lowest income Sub-Saharan countries such as Central African Republic and the Democratic Republic of the Congo. Management research about Africa,... -
An analytical-numerical approach in the calculation of photovoltaic module parameters operating under partial shaded conditions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdouramani Dadjé --- Department of Renewable Energy, National Advanced School of Engineering of Maroua, Cameroon Noël Djongyang --- Department of Renewable Energy, National Advanced School of Engineering of Maroua, Cameroon Réné Tchinda --- LISIE, Fotso Victor University Institute of Technology, CameroonThe aim of this work is to determine the parameters and characteristics of a PV module in case of partial shading conditions. Both numerical and analytical methods are used in order to attain this objective. The iterative method namely Newton-Raphson... -
The introduction, spread and ecology of redclaw crayfish Cherax quadricarinatus in the Zambezi catchment
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RJ Douthwaite --- Kafue River Trust, Holly Oast, United Kingdom EW Jones --- 3 Cwm Arthur, Myddleton Park, United Kingdom AB Tyser --- Kafue River Trust, Holly Oast, United Kingdom SM Vrdoljak --- Wildtracks Lodge, ZambiaTwo of the four crayfish species brought to Zambia for aquaculture since 1979 are now naturalised. Procamburus clarkii occurs in the Maramba River at Livingstone, close to a former fish farm, whereas Cherax quadricarinatus, deliberately introduced to a number of... -
Effects of climate change on malaria morbidity and mortality in Taraba State, Nigeria
Item type: Journal Article • Journal: African Zoology • Authors: J Jonathan --- Department of Zoology and Environmental Biology, Nigeria N Ivoke --- Department of Zoology and Environmental Biology, Nigeria IO Aguzie --- Department of Zoology and Environmental Biology, Nigeria CD Nwani --- Department of Zoology and Environmental Biology, NigeriaThe study investigated the effects of climatic changes on malaria parasite prevalence, morbidity and mortality in Taraba State, Nigeria. Using a retrospective study design, the study relied on secondary data covering a period from 2005 to 2014, obtained from Meteorological... -
Trait variations in 28-year-old teak (Tectona grandis) provenance field trials in Ghana, West Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Stephen Adu-Bredu --- CSIR-Forestry Research Institute of Ghana, Ghana Daniel A Ofori --- CSIR-Forestry Research Institute of Ghana, Ghana Anders Ræbild --- Department of Geosciences and Natural Resource Management, Faculty of Science, Denmark Jon K Hansen --- Department of Geosciences and Natural Resource Management, Faculty of Science, Denmark Appolinaire Koffi --- Société de Développement defs Forêts (SODEFOR), Côte d’Ivoire Philipp Vigneron --- CIRAD, Forest Department, Research Unit 39, Diversity and Breeding of Forest Tree Species, France Erik D Kjær --- Department of Geosciences and Natural Resource Management, Faculty of Science, DenmarkStem straightness, axis persistence, presence/absence of protuberant buds and epicormics, diameter and height have profound influence on timber quality and volume of teak (Tectona grandis). Provenance trials of teak were established in the 1970s in Ghana, as part of the... -
The discourse of institutional change in the Zambian microfinance sector
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Juliana Siwale --- Nottingham Business School, UK Jonathan Kimmitt --- Newcastle University Business School, UK Bruce LamontThis paper investigates the discourse of key actors instigating institutional change in the Zambian microfinance sector. It draws from the institutional story of Zambia, which has experienced regulatory and legislative flux since drafting its first microfinance act in 2006. Building... -
The inflation-hedging ability of individual shares: Evidence from the Johannesburg Stock Exchange (JSE)
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Johannes Hendrik van Rooyen --- Department of Business Management, South Africa Daniel Lee Jones --- Department of Business Management, South AfricaThe erosion of purchasing power due to inflation is a source of concern for investors who invest in stocks over long investment horizons. -
On the iterates of Jackson type operator GS,N in Hilbert space
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: D. Souroujon --- Department of Applied Mathematics, Bulgaria T. Zapryanova --- Department of Applied Mathematics, BulgariaIn this paper we study the limit of the iterates of Jackson type operator. Our results continue the works of Badea [2] and Nagler et al. [9, 10]. The proofs are based on spectral theory of linear operators and are... -
Quality of Olympics opening ceremony: Tourism behavioural intention of international spectators
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Il-young Choi --- School of Management, South Korea Hyun-ju Choi --- Department of Cultural & Arts Management, South Korea Jong-yoon Lee --- Department of Photography, Visual & Contents, South Korea Seung-hye Jung --- School of Dance, South Korea Byong-ju An --- School of Dance, South Korea Joon-ho Kim --- Department of Business Administration, South KoreaThis study assessed the impact of the artistic program of the Winter Olympics opening ceremony event on international spectators’ national image branding of the host country and their intention to visit the host nation. We surveyed a total of 600... -
Cruising queer, old Joburg
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jonathan Cane --- Wits City Institute, South AfricaThe article presents a queer reflection on the method of Walter Benjamin in Johannesburg, South Africa. Using a critical method of ephemera collection and collage, it offers a layered and provocative map of the city before the end of apartheid... -
A mammal survey of the Serra Jeci Mountain Range, Mozambique, with a review of records from northern Mozambique’s inselbergs
Item type: Journal Article • Journal: African Zoology • Authors: Tim van Berkel --- Biodiversity Inventory for Conservation (BINCO), Belgium Emidio Sumbane --- Natural History Museum, Praca Travessia do Zambeze, Mozambique Samuel EI Jones --- Biodiversity Inventory for Conservation (BINCO), Belgium Merlijn Jocque --- Biodiversity Inventory for Conservation (BINCO), BelgiumThe mountains of northern Mozambique have remained poorly studied biologically until recent years with surveys covering a variety of taxonomic groups highlighting their biological and conservation value. Even so, the medium and large mammal fauna remains poorly known and to... -
From Place to Space: A Heideggerian Analysis
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Elizabeth Smythe --- , New Zealand Deborah Spence --- , New Zealand Jonathon Gray --- , New ZealandIn this paper, we pay attention to the impact on staff of what was a new place, Ko Awatea, within a large New Zealand hospital. The place became a space from within which a particular mood arose. This paper seeks... -
Winter site use by Afro-Palearctic migrants in Ghana: site persistence and densities of Willow Warbler, Pied Flycatcher, Melodious Warbler and Common Redstart
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kasper Thorup --- Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, Denmark Iben Hove Sørensen --- DOF BirdLife Denmark, Denmark Mikkel Willemoes --- Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, Denmark Mathilde Lerche-Jørgensen --- Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, Denmark Jon Fjeldså --- Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, Denmark Anders P Tøttrup --- Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, Denmark Erik Mandrup Jacobsen --- DOF BirdLife Denmark, Denmark Andrew H Reeve --- Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, Denmark Robert Oteng-Appau --- Ghana Wildlife Society, Ghana Augustus Asamoah --- Ghana Wildlife Society, Ghana Thomas Lehmberg --- DOF BirdLife Denmark, DenmarkLittle is known about the variation within and among species of long-distance migrants in behavioural strategies and habitat choice on their non-breeding grounds. We report results from regular ringing operations carried out during the winter seasons 2009–2013 and transect counts... -
Morphological and genetic variation of Leptopelis brevirostris encompasses the little-known treefrogs Leptopelis crystallinoron from Gabon and Leptopelis brevipes from Bioko Island, Equatorial Guinea
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Rayna C Bell --- , , USA Patrick J McLaughlin --- , , USA Gregory FM Jongsma --- , , USA David C Blackburn --- , , USA Bryan L Stuart --- , USAThe Central African treefrog Leptopelis brevirostris has a characteristically short and vertically truncated snout, a tooth-like process at the centre of the mandible, and unlike most species of Leptopelis, eats terrestrial gastropods. Two morphologically similar species (L. crystallinoron and L... -
The first range-wide assessment of Saddle-billed Stork Ephippiorhynchus senegalensis distribution
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonah Gula --- Department of Biology, United States Floyd Weckerly --- Department of Biology, United States KS Gopi Sundar --- International Crane Foundation, United StatesThe Saddle-billed Stork Ephippiorhynchus senegalensis exemplifies a case in conservation research in which a species is assessed as Least Concern on the IUCN Red List and the resulting consideration of low conservation priority has precluded proper scientific study. As a... -
The avifauna, conservation and biogeography of the Njesi Highlands in northern Mozambique, with a review of the country’s Afromontane birdlife
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Samuel EI Jones --- School of Biological Sciences, United Kingdom Gabriel A Jamie --- Biodiversity Inventory for Conservation, Belgium Emidio Sumbane --- Biodiversity Inventory for Conservation, Belgium Merlijn Jocque --- Biodiversity Inventory for Conservation, BelgiumNorthern Mozambique’s ‘sky-island’ mountains have become increasingly recognised for their Afromontane birdlife. Despite growing ornithological coverage, however, several Mozambican mountains remain poorly known. We present results from a three-week survey of three such mountains: the Njesi Plateau, Mount Chitagal and... -
Abiotic and biotic responses to the 2016/2017 restoration project at the St Lucia Estuary mouth, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: S Jones --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa NK Carrasco --- School of Life Science, South Africa R Perissinotto --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa C Fox --- Ezemvelo KwaZulu-Natal Wildlife, St Lucia Estuary, South AfricaThe St Lucia Estuary is the largest estuarine lake in Africa and has been heavily impacted by anthropogenic activities, which include a history of human-induced sediment loading and separation in the 1950s of the originally common St Lucia Estuary-uMfolozi River... -
Argumentum ad hominem and coercive company culture influences on workaholism: Results and implications of a cross-cultural South Korea study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- The Cultural Policy Network, South Korea Hyun-ju Choi --- Department of Cultural & Arts Management, South Korea Jong-pil Yu --- Department of Business Administration, South Korea Jeong-hee Lim --- Research Institute Multicultural Community, South Korea Hyuck-jin Lee --- Department of Economics & Trade, South Korea Seung-hye Jung --- School of Dance, South KoreaThe present study investigated the association between supervisors’ use of argumentum ad hominem or confrontational dialogue and companies’ coercive company culture on employees’ emotional exhaustion and workaholism. The survey was conducted with (non-permanent), multicultural foreign workers living in Seoul, Gyeonggi... -
Separation axioms and covering dimension of asymmetric normed spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Victor Donjuán --- Departamento de Matemàticas, Facultad de Ciencias, México Natalia Jonard-Pérez --- Departamento de Matemàticas, Facultad de Ciencias, MéxicoIt is well known that every asymmetric normed space is a T0 paratopological group. Since all Ti axioms (i = 0, 1, 2, 3) are pairwise non-equivalent in the class of paratopological groups, it is natural to ask if some... -
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... -
Determinants of actual and potential adoption of improved indigenous chicken under asymmetrical exposure conditions in rural Kenya
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Henry Muli Mwololo --- , Kenya Jonathan Makau Nzuma --- , Kenya Cecilia Nyawira Ritho --- , Kenya Sylvester Ochieng Ogutu --- , Germany Nassul Kabunga --- , UgandaWe employ the average treatment effects approach to account for asymmetrical information exposure on a sample of 744 farmers in Kisii and Nyamira counties, Kenya, to estimate the actual and potential adoption of a new chicken cross breed. The actual... -
Social networking sites self-image antecedents of social networking site addiction
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- , South Korea Seung-hye Jung --- , South Korea Jong-chang Ahn --- , South Korea Bo-seong Kim --- , South Korea Hyun-ju Choi --- , South KoreaThis study examined social network services (SNS) self-image and relationship influences on SNS addiction in a cross-national sample of adults (N = 444; South Africans = 214, Americans = 230; females = 49.3%) using survey data collected by the global... -
The allure of essentialism and extremist ideologies
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jonatan Kurzwelly --- , South Africa Hamid Fernana --- , South Africa Muhammad Elvis Ngum --- , South AfricaThis paper examines different reasons that make essentialist thinking, and by extension extremist ideologies based on such logic, attractive to individuals. Drawing from theories of personal and social identities, we examine the benefits derived from adopting an essentialist and reductionist... -
Encountering, explaining and refuting essentialism
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jonatan Kurzwelly --- , South Africa Nigel Rapport --- , United Kingdom Andrew D. Spiegel --- , South AfricaEssentialism manifests itself in a diversity of forms and is used in multiple ways. Yet it is always potentially dangerous — even when it is mobilised strategically and in apparently worthy forms for purposes of overcoming oppressive structures. As the... -
Observations of Southern Ground-Hornbill Bucorvus leadbeateri groups in the Kafue National Park, Zambia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonah Gula --- , United States Chaona G Phiri --- , United KingdomZambia represents a core part of the Southern Ground-Hornbill’s Bucorvus leadbeateri distribution, yet empirical information on the country’s population is scant. From February to September 2017, ground-hornbill sightings were recorded in Kafue National Park in western Zambia to describe population... -
“There is no fear in me … well, that little fear is there”: dualistic views towards HIV testing among South African adolescent girls and young women
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zoe Duby --- , South Africa Kim Jonas --- , South Africa Tracy McClinton Appollis --- , South Africa Kealeboga Maruping --- , South Africa Janan Dietrich --- , South Africa Lieve Vanleeuw --- , South Africa Catherine Mathews --- , South AfricaIn spite of the high HIV burden and high prevalence and incidence of HIV infection among adolescent girls and young women (AGYW) in South Africa, uptake of HIV testing in this population falls short of the UNIADS 90-90-90 targets, leading... -
The role of improved technology to enhance Total Factor Productivity (TFP): The case of quality seed yam production in Ghana and Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Jonas Osei-Adu --- , Ghana Robert Aidoo --- , Ghana Simon Cudjoe Fialor --- , Ghana Stella Ama Ennin --- , Ghana Kingsley Osei --- , Ghana Bright Owusu Asante --- , GhanaTo promote the dissemination of Positive Selection (PS) technology for quality seed yam production, this study was undertaken to provide empirical evidence and to examine differences in the Total Factor Productivity resulting from the use of PS technology. Through multistage... -
The effect of fishmeal replacement with terrestrial protein sources on growth, body condition and intestinal microbiota of juvenile dusky kob Argyrosomus japonicus
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CLW Jones --- , South Africa A Nel --- , South Africa A Adesola --- , South Africa T Shipton --- , South Africa H Kaiser --- , South AfricaA balanced combination of protein sources to partially replace fishmeal in the diets of cultured carnivorous fish can promote optimal fish health and production performance. In the present study, the growth, body condition and gut microbiota of juvenile dusky kob... -
‘Who is this body?’ – A qualitative user study on ‘The Machine to be Another’ as a virtual embodiment system
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Jonathan Harth --- , Germany Maximilian Brücher --- , Germany Nele Kost --- , Germany Ann-Danielle Hartwig --- , Germany Bernhard Schäfermeyer --- , Germany Erwin Holkin --- , Germany Hanna Gottschalk --- , GermanyLike no other medium, virtual reality (VR) offers new possibilities to alter the perception of reality. These possibilities are mainly related to the feeling of presence in a virtual environment. With the VR performance ‘The Machine to be Another’ (TMTBA),... -
Exit strategies for social venture entrepreneurs in sub-Sahara Africa: A literature review
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Alexander Tetteh Kwasi Nuer --- , Ghana Gert Van Dijk --- , The Netherlands Joost Jongerden --- , The NetherlandsThis paper reviews exit strategies for social venturing entrepreneurs. Exit is important for social venture entrepreneurs because they do not intend to stay in perpetuity in businesses they establish in the countries and communities where such businesses are set up... -
Optimisation of micropropagation protocols for temperate eucalypt hybrids in South Africa, with a focus on auxin transport proteins
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rafael Keret --- , South Africa Muhammad Nakhooda --- , South Africa Nicoletta B Jones --- , South Africa Paul N Hills --- , South AfricaGlobally the demand for forestry resources is booming, and consequently innovative approaches to cultivate valuable hardwoods, such as eucalypts, are crucial. Although micropropagation offers a means to clonally propagate desirable cultivars, this technique is often variety-specific for eucalypts. Thus, recalcitrant... -
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... -
The Job Demands Scale for Hearing-Impaired Employees: Development and preliminary analysis of internal validity
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Strauss Chelius --- , South Africa Marissa Brouwers --- , South Africa Bouwer J Jonker --- , South AfricaFew work participation scales have been normed on employees with hearing impairment. This creates an employment disparity against them. We developed a 57 item Job Demands for Hearing Impaired Employees (JDHIE) scale, providing preliminarily internal validity evidence. Respondents were 85... -
Transfer of ownership for social venture entrepreneurs: A case study in northern Tanzania
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Alexander Tetteh Kwasi Nuer --- , Ghana Gert van Dijk --- , The Netherlands Joost Jongerden --- , The Netherlands Miguel Rivera-Santos --- , USASocial Venture Entrepreneurs (SVEs) invest in supply chains with the aim to ignite businesses, but with a vision on how to transfer ownership to third parties. The present study explores the definitions and forms of ownership envisioned by local stakeholders... -
Assessments of range-wide distribution of six African storks and their relationships with protected areas
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonah Gula --- , USA M Clay Green --- , USA Sarah Fritts --- , USA W Richard J Dean --- , South Africa KS Gopi Sundar --- , IndiaSpecies range maps provided by the IUCN and BirdLife International are recognised to sometimes mischaracterise distribution and have resulted in inaccurate status assessments. In this study we assessed distribution trends and relationships with protected area extent for six African storks,... -
How citizen scientists are rapidly generating big distribution data: lessons from the Arewa Atlas Team, Nigerian Bird Atlas Project
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abubakar S Ringim --- , Nigeria Sulaiman I Muhammad --- , Nigeria Longji A Bako --- , Nigeria Haruna M Abubakar --- , Nigeria Sulaiman M Isa --- , Nigeria Doofan J Nelly --- , Nigeria Aliyu A Bajoga --- , Nigeria Abdulhamid S Bunu --- , Nigeria Hafiz A Adam --- , Nigeria Idris M Jalo --- , Nigeria Jonathan O Eveso --- , Nigeria Eugene D Mathew --- , Nigeria Bello A Danmallam --- , Nigeria Umbule Mador --- , Nigeria Jennifer I Paul --- , Nigeria Isuwa Aminu --- , Nigeria Alai Lawal --- , Nigeria Joseph I Izang --- , Nigeria Ponyil N Abu --- , NigeriaThe Arewa Atlas Team (AAT) in northern Nigeria has set an example for a robust methodological data collection and made a big impact for the African Bird Atlas Project. To broaden national bird atlas projects and coverage across the continent,... -
Social entrepreneurs’ learning experience in South African incubators
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Aleia Bucci --- , South Africa Jonathan Marks --- , South AfricaAfrica’s strong entrepreneurial spirit and desire for social change has led to growth in social entrepreneurship and incubation throughout the continent. However, there is a limited understanding of how entrepreneurial learning occurs during incubation. This study explored social entrepreneurs’ learning... -
Effects of award incentives and competition on entrepreneurship development of women farmers in North West province, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Enioluwa Jonathan Ijatuyi --- , South Africa Oladimeji Idowu Oladele --- , Nigeria Abiodun Olusola Omotayo --- , South AfricaFemale agricultural workers play an important role in feeding the world; hence, there is a need to encourage females in agricultural enterprises of developing countries. This study specifically identified the socioeconomic characteristics of the participants, their degree of participation, the... -
Machine learning approach for identifying suspicious uniform resource locators (URLs) on Reddit social network
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nureni Ayofe Azeez --- , Nigeria Ahmed Oladapo Lawal --- , Nigeria Sanjay Misra --- , Norway Jonathan Oluranti --- , NigeriaThe applications and advantages of the Internet for real-time information sharing can never be over-emphasized. These great benefits are too numerous to mention but they are being seriously hampered and made vulnerable due to phishing that is ravaging cyberspace. This... -
Assessment of the acoustic change in heat-treated Pinus elliottii and Bertholletia excelsa wood from homogeneous plantations in Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Daiana Sousa de Jesus --- Federal Rural University of Rio de Janeiro, Brazil Jonnys Paz Castro --- Federal Rural University of Rio de Janeiro, Brazil Taiane Guedes --- Universidade Federal de Lavras, Brazil José Reinaldo Moreira da Silva --- Universidade Federal de Lavras, Brazil João Vicente de Figueiredo Latorraca --- Federal Rural University of Rio de Janeiro, Brazil Alexandre Miguel do Nascimento --- Federal Rural University of Rio de Janeiro, BrazilHeat treatment has been used in wood to improve its technological properties, but due to the complex nature of wood, it is necessary to carry out analyses to confirm the changes, and also to investigate which temperatures and protocols are... -
Phase III microbicide trial methodology: opinions of experienced expanded safety trial participants in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Janneke van de Wijgert --- IATEC Foundation, Heidi Jones --- Population Council, Annalie Pistorius --- Health Professions Council of South Africa, Alana de Kock --- Infectious Disease Epidemiology Unit of the School of Public Health and Family Medicine, University of Cape Town, South Africa Mohlatlego Sebola --- Health Professions Council of South Africa, Barbara Friedland --- International Programs Division, Population Council, Anwar Hoosen --- Department of Microbiological Pathology, Medunsa Campus of the University of Limpopo, Nicol Coetzee --- UK National Health Service,In preparation for effectiveness trials of candidate vaginal microbicides, scientists are debating trial design and implementation challenges, including choice of control arm(s), product-sharing across arms, and visit schedules. This study involved a survey of South African women participating in an... -
Development of structured support groups for HIV-positive women in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Maretha Visser --- Department of Psychology, University of Pretoria, Jonathan Mundell --- University of Pretoria, Annelize de Villiers --- MRC Unit for Maternal and Infant Care Strategies, University of Pretoria, Kathleen Sikkema --- Epidemiology and Public Health, Psychiatry and Psychology, Yale University School of Medicine, Bridget Jeffery --- Department Obstetrics and Gynaecology, University of Pretoria and Kalafong Hospital,Women living with HIV in a stigmatising community need support to cope with their HIV status. In a process of action research, a structured support group programme was designed to meet the needs of women to cope with their diagnosis... -
Establishing support groups for HIV-infected women: Using experiences to develop guiding principles for project implementation
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Maretha Visser --- Department of Psychology, University of Pretoria, Jonathan Mundell --- Kalafong Hospital,HIV-infected women need support to deal with their diagnosis as well as with the stigma attached to HIV. As part of their practical training, Master's-level psychology students negotiated with the staff of four clinics in townships in Tshwane, South Africa,... -
Sexual risk reduction among Zambian couples
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ndashi Chitalu --- Department of Medicine, University of Zambia School of Medicine, Phillimon Ndubani --- Institute for Social and Economic Research, University of Zambia, Miriam Mumbi --- University of Zambia School of Medicine, Deborah L Jones --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Stephen M Weiss --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Olga Villar-Loubet --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Szonja Vamos --- University of Miami Miller School of Medicine, Drenna Waldrop-Valverde --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine,Zambia has over 1 million HIV infections nationwide and an urban prevalence rate of 23%. This study compared the impact of male involvement in multiple and single session risk reduction interventions among inconsistent condom users in Zambia and the role... -
Efficacy of a lay health worker led group antiretroviral medication adherence training among non-adherent HIV-positive patients in KwaZulu-Natal, South Africa: Results from a randomized trial
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer [d77e18] Shandir Ramlagan Deborah Jones Stephen M. Weiss Henry Fomundam Lucia ChanetsaThere is a lack of theory-based randomized controlled trials to examine the effect of antiretroviral adherence in sub-Saharan Africa. We assessed the effectiveness of a lay health worker lead structured group intervention to improve adherence to antiretroviral therapy (ART) in... -
HIV knowledge, disclosure and sexual risk among pregnant women and their partners in rural South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Molatelo Elisa Shikwane --- , South Africa Olga M. Villar-Loubet --- , USA Stephen M. Weiss --- , USA Karl Peltzer --- , South Africa Deborah L. Jones --- , USAPartner involvement has been deemed fundamental for the prevention of mother-to-child transmission (PMTCT) of HIV, although it remains difficult to achieve. This study aimed to explore the attitudes and behaviours of pregnant women and their partners who participated in a... -
Prevalence of prenatal depression and associated factors among HIV-positive women in primary care in Mpumalanga province, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- , , South Africa Violeta J. Rodriguez --- , , USA Deborah Jones --- , , USAThis study aimed to assess the prevalence of depressed symptoms and associated factors in prenatal HIV-positive women in primary care facilities in rural South Africa. In a cross-sectional study, 663 HIV-positive prenatal women in 12 community health centres in Mpumalanga... -
When the clinic becomes a home. Successful VCT and ART services in a stressful environment
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jonathan Mensah Dapaah --- , , Ghana Rachel Spronk --- , , The NetherlandsWith the upscaling of antiretroviral therapy (ART) in resource-poor countries, many HIV-positive persons in Ghana have been accessing treatment in hospitals. Prevalence is relatively low compared to other African countries, 1.30%. HIV/AIDS remains heavily stigmatised in Ghana, which influences the... -
The Achilles’ heel of prevention to mother-to-child transmission of HIV: Protocol implementation, uptake, and sustainability
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Violeta J. Rodriguez --- , , USA Richard P. LaCabe --- , , USA C. Kyle Privette --- , , USA K. Marie Douglass --- , USA Karl Peltzer --- , South Africa Gladys Matseke --- , South Africa Audrey Mathebula --- , South Africa Shandir Ramlagan --- , South Africa Sibusiso Sifunda --- , South Africa Guillermo “Willy” Prado --- , USA Viviana Horigian --- , , USA Stephen M. Weiss --- , , USA Deborah L. Jones --- , , USAThe Joint United Nations Programme on HIV and AIDS proposed to reduce the vertical transmission of HIV from ∼72,200 to ∼8300 newly infected children by 2015 in South Africa (SA). However, cultural, infrastructural, and socio-economic barriers hinder the implementation of... -
Effect of a multicomponent behavioural PMTCT cluster randomised controlled trial on HIV stigma reduction among perinatal HIV positive women in Mpumalanga province, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- , South Africa Suat Babayigit --- , , USA Violeta J. Rodriguez --- , , USA Jenny Jean --- , USA Sibusiso Sifunda --- , South Africa Deborah L. Jones --- , , USABackground: We evaluate the impact a multicomponent, behavioural, prevention of mother to child transmission (PMTCT), cluster randomised controlled trial on HIV stigma reduction among perinatal HIV infected women in rural South Africa. Methods: In a cluster randomised controlled trial, twelve... -
Determinants of disclosure and non-disclosure of HIV-positive status, by pregnant women in rural South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Shandir Ramlagan --- , , South Africa Gladys Matseke --- , , the Netherlands Violeta J. Rodriguez --- , , USA Deborah L. Jones --- , , USA Karl Peltzer --- , , South Africa Robert A.C. Ruiter --- , , the Netherlands Sibusiso Sifunda --- , , South AfricaDisclosure of HIV status remains one of the major challenges to the effectiveness of the prevention of mother to child transmission of HIV in rural areas in South Africa. This study aimed at assessing the determinants of HIV status disclosure... -
Maternal and infant antiretroviral therapy adherence among women living with HIV in rural South Africa: a cluster randomised trial of the role of male partner participation on adherence and PMTCT uptake
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Deborah L. Jones --- University of Miami Miller School of Medicine, USA Violeta J. Rodriguez --- University of Miami Miller School of Medicine, USA Manasi Soni Parrish --- University of Miami Miller School of Medicine, USA Tae Kyoung Lee --- University of Miami Miller School of Medicine, USA Stephen M. Weiss --- University of Miami Miller School of Medicine, USA Shandir Ramlagan --- HIV/AIDS/STIs and TB (HAST) Research Programme, Human Sciences Research Council, South Africa Karl Peltzer --- Ton Duc Thang University, Vietnam‘Mother-to-child transmission of HIV’ can occur during the period of pregnancy, childbirth, or breastfeeding. ‘Prevention of mother-to-child transmission of HIV’ (PMTCT) in Mpumalanga Province, South Africa, is especially vital as the prevalence of HIV is 28.2% in women aged 15–49... -
‘I can't go to her when I have a problem’: sexuality communication between South African adolescent girls and young women and their mothers
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Zoe Duby --- South African Medical Research Council, South Africa Wilmé Verwoerd --- University of Cape Town, South Africa Katja Isaksen --- University of Bergen, Norway Kim Jonas --- South African Medical Research Council, South Africa Kealeboga Maruping --- South African Medical Research Council, South Africa Janan Dietrich --- South African Medical Research Council, South Africa Ashleigh Lovette --- Brown University School of Public Health, USA Caroline Kuo --- Brown University School of Public Health, USA Catherine Mathews --- South African Medical Research Council, South AfricaParent–adolescent sexuality communication, the process in which parents and their adolescent children discuss sexuality and sexual and reproductive health, is a key component for adolescents’ protective behaviours. Open communication with parents, particularly mothers, enables informed sexual and reproductive health (SRH)... -
PREDATION BY THE SHARPTOOTH CATFISH CLARIAS GARIEPINUS (SILURIFORMES: CLARIIDAE) ON THE COMMON PUFF-ADDER BITIS ARIETANS (SQUAMATA: VIPERIDAE)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: S.C. THORNE --- Jonkershoek Nature Conservation Station, Republic of South Africa K. C. D. HAMMAN --- Jonkershoek Nature Conservation Station, Republic of South Africa -
NEW HERPETOLOGICAL DISTRIBUTION RECORDS IN THE WESTERN CAPE PROVINCE
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: E. H.W. BAARD --- Jonkershoek Nature conservation Station, RICHARDC. BOYCOTT --- Transvaal Snake Park, D.G. BROADLEY --- , Zimbabwe A. J.L. LAMBIRIS --- , South Africa RICHARDC. BOYCOTT --- Transvaal Snake Park, -
LIFE HISTORY NOTES
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: ALAN CHANNING --- University of the Western Cape, ANDRE VAN WYK --- , E. H.W. BAARD --- Jonkershoek Nature Conservation Station, G.V. HAAGNER --- Gazankulu Nature Conservation, Manyeleti Game Reserve, G. CARPENTER --- , G.V. HAAGNER --- Manyeleti Game Reserve, R.A. ELS --- , G.V. HAAGNER --- Manyeleti Game Reserve, G.V. HAAGNER --- Manyeleti Game Reserve, W.R. BRANCH --- , B.W. PORTER --- , M. PATTERSON --- , GERALD HAAGNER --- , -
A PROVISIONAL AND ANNOTATED CHECKLIST OF THE HERPETOFAUNA OF SOUTHERN AFRICA
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: W.R. BRANCH --- , E. H. W. BAARD --- Jonkershoek Research Station, W.D. HAACKE --- , N. JACOBSEN --- , J.C. POYNTON --- University of Natal, D.G. BROADLEY --- , Zimbabwe -
LIFE HISTORY NOTES
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: D.G. BROADLEY --- , Zimbabwe B.W. PORTER --- Game Valley Estates, AARONM. BAUER --- University of Calgary, Canada MICHAEL JAENSCH --- , South Africa L. HOFFMANN --- Jonkershoek Research Station, W.R. BRANCH --- , S. FARRELL --- Reptile World, W.R. BRANCH --- , D. BOULLÉ --- J. L. B. Smith Institute of Ichthyology, W.R. BRANCH --- , M.F. BATES --- , E. H. W. BAARD --- Jonkershoek Nature Conservation Station, G.V. HAAGNER --- Manyeleti Game Reserve, M.F. BATES --- , M.F. BATES --- , M.F. BATES --- , M.F. BATES --- , W.R. BRANCH --- , South Africa D.G. BROADLEY --- , Zimbabwe -
A CONTRIBUTION TO THE HERPETOFAUNAL DISTRIBUTION OF THE VERNEUKPAN/COPPERTON AREA, NORTH-WESTERN CAPE PROVINCE, SOUTH AFRICA
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: E. H. W. BAARD --- Jonkershoek Nature Conservation Station, A.L. DE VILLIERS --- Jonkershoek Nature Conservation Station, M.E. DE VILLIERS --- Jonkershoek Nature Conservation Station, -
NOTE ON THE ECOLOGY OF THE HORNED ADDER BITIS CAUDALIS (A. SMITH) FROM GOBABEB, NAMIB-NAUKLUFT PARK
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: L. A.C. HOFFMANN --- Jonkershoek Research Station, -
THE ECOLOGY AND CONSERVATION STATUS OF THE GEOMETRIC TORTOISE PSAMMOBATES GEOMETRICUS: PRELIMINARY RESULTS
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: ERNST H. W. BAARD --- Jonkershock Nature Conservation Station, Stellenbosch, -
THE GEOMETRIC TORTOISE—SYMPTOM OF A DYING ECOSYSTEM
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: A.L. DE VILLIERS --- Jonkershoek Nature Conservation Station, -
GEOGRAPHICAL DISTRIBUTION
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: W.D. HAACKE --- , N. H. G. JACOBSEN --- , G.V. HAAGNER --- , South Africa E. H. W. BAARD --- Jonkershoek Nature Conservation Station, A. SCOTT --- De Hoop Nature Reserve, RICHARDC. BOYCOTT --- Malolotja Nature Reserve, Swaziland A.M. BAUER --- Villanova University, U.S.A RICHARDC. BOYCOTT --- Malolotja Nature Reserve, Swaziland HAROLDH. BRAACK --- Karoo National Park, RICHARDC. BOYCOTT --- Malolotja Nature Reserve, Swaziland WILLIAMR. BRANCH --- , -
A critically endangered new species of Nectophrynoides (Anura: Bufonidae) from the Kihansi Gorge, Udzungwa Mountains, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- , England KimM. Howell --- University of Dar es Salaam, Tanzania BarryT. Clarke --- , England JonC. Lovett --- University of York, EnglandA new species of the Tanzanian ovoviviparous dwarf toad Nectophrynoides is described from the Kihansi River Gorge in the Udzungwa Mountains, and a key to the genus provided. The new species, currently known only from small patches of spray-dependent wetland... -
Phylogenetic relationships of African caecilians (Amphibia: Gymnophiona): Insights from mitochondrial rRNA gene sequences
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mark Wilkinson --- The Natural History Museum, UK SimonP. Loader --- The Natural History Museum, UK DavidJ. Gower --- The Natural History Museum, UK JonathanA. Sheps --- University of Glasgow, Scotland, UK BernardL. Cohen --- University of Glasgow, Scotland, UKAfrica (excluding the Seychelles) has a diverse caecilian fauna, including the endemic family Scolecomorphidae and six endemic genera of the more cosmopolitan Caeciliidae. Previous molecular phylogenetic studies have not included any caecilians from the African mainland. Partial 12S and 16S... -
Edge effect from paths on two chameleon species in Madagascar
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jessica Metcalf --- Imperial College, UK Nick Bayly --- The Wetland Trust, Michel Bisoa --- Faculté des Sciences, Madagascar Jeanneney Rabearivony --- Faculté des Sciences, Madagascar Alex Stewart‐Jones --- School of Biological Sciences, U.K.Edge effects are thought to be widespread in ecology and have important implications for forest fragmentation and conservation. Generally, however, large openings in the forest canopy are considered. Here we report a statistically robust edge effect from forest paths with... -
A new species of chameleon (Sanria: Chamaeleonidae: Kinyongia) from the Magombera forest and the Udzungwa Mountains National Park, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michele Menegon --- Museo Tridentino di Scienze Naturali, Italy KrystalA. Tolley --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Trevor Jones --- c/o Udzungwa Mountains National Park, Tanzania Francesco Rovero --- Museo Tridentino di Scienze Naturali, Italy AndrewR. Marshall --- University of York, UK ColinR. Tilbury --- University of Stellenbosch, South AfricaA new species of chameleon Kinyongia magomberae sp. nov. (the Magombera chameleon), is described from Magombera forest and the Vdzungwa Mountains National Park, south-central Tanzania. The species status is supported by phylogenetic analyses using mitochondrial and nuclear markers. The new... -
Conservation assessment of the critically endangered frog Mantella aurantiaca in Madagascar
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Roma Randrianavelona --- Madagasikara Voakajy, Madagascar Harisoa Rakotonoely --- Université d' Antananarivo, Madagascar Jonah Ratsimbazafy --- Université d' Antananarivo, Madagascar RichardK. B. Jenkins --- Madagasikara Voakajy, MadagascarMantella aurantiaca is a small, bright orange, terrestrial amphibian that is endemic to the island of Madagascar. The species has attracted significant attention from herpetologists and captive breeders but relatively little effort has been given to its conservation in the... -
Transhumance pastoralism in West Africa – its importance, policies and challenges
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Eric Cofie Timpong-Jones --- Livestock and Poultry Research Centre (LIPREC), University of Ghana, Ghana Igshaan Samuels --- University of the Western Cape, South Africa Felix Owusu Sarkwa --- Livestock and Poultry Research Centre (LIPREC), University of Ghana, Ghana Kwame Oppong-Anane --- Oporhu Agricultural and Rural Development Consultancy Ltd, Ghana Ayodele Oluwakemi Majekodumni --- Food and Agriculture Organization of the United Nations (FAO), NigeriaThe Economic Community of West African States (ECOWAS) recognises transhumance pastoralism as a beneficial livestock production system that can contribute to food security together with economic and political stability. Thus, the subregional bloc put together the ECOWAS Protocol on Transhumance... -
Spatial variability of herbage yield, grazing capacity and plant diversity in a tropical savannah rangeland ecosystem
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: ND Anane --- University of Ghana, Ghana R Ayizanga --- University of Ghana, Ghana FO Sarkwa --- University of Ghana, Ghana T Ansah --- University for Development Studies, Ghana EC Timpong-Jones --- University of Ghana, GhanaTo improve ruminant livestock production, evaluation of rangelands must be a routine. Rangeland evaluation gives information about the vegetation structure, biomass yield and quality. The Guinea savannah rangelands of Ghana lack research that characterises the spatial variability of herbage yield... -
Second-hand housing: a review of avian species using Hamerkop nests for breeding
Item type: Journal Article • Journal: African Zoology • Authors: Jonah Gula --- University of KwaZulu-Natal, South Africa Colleen T Downs --- University of KwaZulu-Natal, South AfricaNest-building is an energetically expensive activity for birds. Consequently, some species opportunistically use other species’ nests. The Hamerkop Scopus umbretta, an endemic sub-Saharan African waterbird, constructs one of the largest nests of any bird in the world. Little is documented... -
Magellan mussels Aulacomya atra from the South African coast show high diversity within populations but a lack of geographic differentiation
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JP Grobler --- University of the Free State, South Africa Z Zhao --- University of the Free State, South Africa JW Jones --- , United States A Kotze --- University of the Free State, South AfricaThe Magellan mussel Aulacomya atra is a bivalve mollusc found along parts of the South African and Namibian coastline. Its numbers were low historically compared with other indigenous species but have decreased further since the 1970s owing to habitat invasion... -
An inventory of amphibian roadkill in the western Soutpansberg, Limpopo province, South Africa
Item type: Journal Article • Journal: Treading a Delicate Tightrope: A principal balancing between education and political change during turbulent times • Authors: Thabo I Hlatshwayo --- , South Africa Eduard M Stam --- , South Africa Wendy J Collinson-Jonker --- , South Africa Abeda Dawood --- , South AfricaIncreasing linear infrastructure development often impacts habitats and wildlife negatively. Roads, in particular, have numerous threats to wildlife with the most noticeable direct impact being roadkill, and this requires urgent conservation interventions. To assess amphibian roadkill, driven surveys were conducted... -
The (E, E)-approximation property for Banach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ju Myung Kim --- Sejong University, Korea Bentuo Zheng --- The University of Memphis, USAFor a given Banach space E with an 1-unconditional basis, we introduce the (E, E)-approximation property ((E, E)-AP) which is a natural generalization of the classical approximation property (AP) and the (p, p)-AP. It is shown that the AP always... -
Early economic benefits of perioperative nasojejunal tube feeding in non-critical care adult surgical patients with gastric feed intolerance
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Galya Chinnery --- University of Cape Town, Groote Schuur Hospital, South Africa Anna-Lena du Toit --- Groote Schuur Hospital, South Africa Chanel Robinson --- Mitchell’s Plain District Hospital, South Africa Ilhaam Kippie --- Khayelitsha District Hospital, South Africa Eduard Jonas --- University of Cape Town, Groote Schuur Hospital, South Africa Matthias Scriba --- University of Cape Town, Groote Schuur Hospital, South Africa -
The influence of cross-cultural adjustment on job performance
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Irena Mihaela Stan --- NHL Stenden University of Applied Sciences, The Netherlands Ilse Jongboom --- NHL Stenden University of Applied Sciences, The NetherlandsGiven the international nature of teams and guests in the hospitality industry, cross-cultural adjustment and awareness are crucial at both personal and organisational levels. The purpose of this study is to understand the factors underlying cross-cultural adjustment and how it... -
Addressing the pipework in South Africa’s oldest playable organ: a materialist-political history
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Jonathan Edward Hughes --- Rhodes University, South AfricaA domestic organ built by William Hill between 1832 and 1837, currently housed at Wesley Methodist Chapel in Makhanda (formerly Grahamstown), is amongst the oldest pipe organs in South Africa. It is thought to have belonged to Lt Gen. Sir... -
Farm operation injuries among cocoa famers in Ghana: Investigating the causes, choice of treatment and compliance to safety standards
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Gifty-Maria Sangber-Dery --- KNUST-Kumasi, Ghana Enoch Kwame Tham-Agyekum --- KNUST-Kumasi, Ghana Fred Ankuyi --- KNUST-Kumasi, Ghana John-Eudes Andivi Bakang --- KNUST-Kumasi, Ghana Nathaniel Nii Lartey Lartey --- University of Michigan, USA Ernest Laryea Okorley --- University of Cape Coast, Ghana Ebenezer Osei Jones --- Akenten Appiah-Menka University of Skills Training and Entrepreneurship Development, Ghana David Boansi --- KNUST-Kumasi, GhanaThis study investigated the socioeconomic factors that predispose cocoa farmers to farm operation injuries, their choice of treatment and compliance with recommended safety standards. It used the multi-stage sampling technique to collect data from 400 cocoa farmers. Descriptive statistics, the... -
Extension of semi-Lipschitz maps on non-subadditive quasi-metric spaces: new tools for Artificial Intelligence
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Roger Arnau --- Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València, Spain Natalia Jonard-Pérez --- Universidad Nacional Autónoma de México, México Enrique A. Sánchez Pérez --- Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València, SpainThe axioms of symmetry and indiscernibility of a metric function can be eliminated and still define a topological space with good enough properties. However, among all the axioms that constitute the notion of a metric, the subadditivity or triangular inequality... -
What is not known is not aimed for — Understanding staff knowledge and readiness to embrace sustainable and healthy food
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Elena Cavagnaro --- NHL Stenden University of Applied Sciences, The Netherlands Michel Altan --- Breda University of Applied Sciences, The Netherlands Ernst Jonker --- NHL Stenden University of Applied Sciences, The Netherlands Machiel Reinders --- Wageningen University & Research, The NetherlandsTo mitigate the adverse effects of excessive consumption of animal proteins on both the environment and human well-being, a transition is needed toward plant-based proteins. Such a shift requires a change in eating behaviours, both at home and elsewhere. Focusing... -
Burrow site selection in the Sungazer (Smaug giganteus): a threatened South African endemic lizard
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Wade K Stanton-Jones --- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa Daniel JD Natusch --- Macquarie University, Australia Graham J Alexander --- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South AfricaElucidating factors that drive microhabitat selection in a species is important for informing the conservation management of the species. For species that use microhabitats as long-term refuge sites, selection pressures are likely to be strong because the microhabitat must fulfil... -
Estimation of lumber recovery for small-scale mobile sawmills in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ernest William Mauya --- Sokoine University of Agriculture, Tanzania Lynder Gesase --- Sokoine University of Agriculture, Tanzania Gabriel Mangi --- Sokoine University of Agriculture, Tanzania Gilberth Temba --- Sokoine University of Agriculture, Tanzania Diana Tesha --- Sokoine University of Agriculture, Tanzania Sami Madundo --- Sokoine University of Agriculture, Tanzania Nandera Juma Lolila --- Sokoine University of Agriculture, Tanzania Justo Ndyanabo Jonas --- Sokoine University of Agriculture, TanzaniaLumber recovery is an important parameter in determining the production efficiency and viability of mobile sawmilling operations. In this study, lumber recoveries for mobile sawmilling machines operating in four different locations in Tanzania were estimated. A total of 11 mobile... -
New waterbird breeding records in Western Province, Zambia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonah Gula --- University of KwaZulu-Natal, South Africa Amukena Mungole --- , Zambia Kirsty J Kyle --- University of KwaZulu-Natal, South Africa Matthew J Burnett --- University of KwaZulu-Natal, South Africa Moses Chibesa --- University of KwaZulu-Natal, South Africa Colleen T Downs --- University of KwaZulu-Natal, South AfricaKnowledge of where species breed is important for understanding population trends, range shifts and conservation threats. During fieldwork in 2019–2023 in Western Province, Zambia, we recorded evidence of breeding of 21 waterbird species. According to known literature, these are considered... -
Liminal bodies left in perpetual suspension: social, cultural and political-economic responses to the Covid-19 pandemic in Southern African contexts
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jonathan Stadler --- University of Johannesburg, South Africa Gcobani Qambela --- University of Johannesburg, South Africa -
Local and 2-local automorphisms of solvable Leibniz algebras with abelian and model nilradicals
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Iqboljon Karimjanov --- Saint-Petersburg State University, Russia Sardorbek Umrzaqov --- Andijan State University, Uzbekistan Bakhtiyor Yusupov --- V.I. Romanovskiy Institute of Mathematics, Uzbekistan Academy of Sciences, UzbekistanIn the paper, we describe the automorphisms on the solvable Leibniz algebras with the model or abelian nilradicals, whose complementary spaces are equal to two and one, respectively. We show that any local automorphism on a solvable Leibniz algebra with... -
Evaluation of in situ and ex situ forage germplasm collections reveals the first occurrence and seed-transmission of alfalfa mosaic virus and southern bean mosaic virus in Urochloa species
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Woubit Dawit --- International Livestock Research Institute (ILRI), Ethiopia Fikerte Mulatu --- International Livestock Research Institute (ILRI), Ethiopia Yesuf Eshete --- International Livestock Research Institute (ILRI), Ethiopia Alemayehu Teressa Negawo --- International Livestock Research Institute (ILRI), Ethiopia Alok Kumar --- Haramaya University, Ethiopia Alice Muchugi --- International Livestock Research Institute (ILRI), Ethiopia Chris Stephen Jones --- International Livestock Research Institute (ILRI), KenyaGrasses of the genus Urochloa (Urochloa species syn. Brachiaria species) are among the most important tropical forage grasses of African origin. The International Livestock Research Institute (ILRI) Forage Genebank maintains 671 Urochloa grass accessions, belonging to 28 species, of which... -
On uniquely packable trees
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Alochukwu --- Albany State University, USA M. Dorfling --- University of Johannesburg, South Africa E. Jonck --- University of the Witwatersrand, South AfricaAn i-packing in a graph G is a set of vertices that are pairwise at distance more than i. A packing colouring of G is a partition X = {X 1, X 2, . . . , X k... -
Insights into the phylogenetic position of genus Synodontella (Monopisthocotylea) among some other Dactylogyridea gill parasites of African catfishes and the importance of haptoral elements
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Jonathan A Mbondo --- Institute of Agricultural Research for Development (IRAD), Mbalmayo Agricultural Research Centre, Cameroon Dieu ne dort Bahanak --- Institute of Agricultural Research for Development (IRAD), Minko Multipurpose Research Station, Cameroon Etienne D Bassock Bayiha --- University of Yaoundé I, Cameroon Charles F Bilong Bilong --- University of Yaoundé I, CameroonThis work provides new molecular data on seven species representing three genera (Protoancylodiscoides, Schilbetrema and Synodontella) in the order Dactylogyridea. The results help to explain the origin of Synodontella spp. and to elucidate the phylogenetic position of Synodontella in relation... -
Grazing effects on forage quality parameters of three rangeland species in arid regions of Semnan, Iran
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Milad Kamiziani --- University of Kurdistan, Iran Shima Nikoo --- Semnan University, Iran Hamed Joneidi Jafari --- University of Kurdistan, Iran Fateme Naghizade Asl --- Gorgan University of Agricultural Sciences and Natural Resources, IranForage quality determines livestock production and overgrazing results in significant changes in forage quality of rangeland species. This study aimed to compare the effects of overgrazing on forage quality of Artemisia sieberi, Zygophyllum eurypterum and Stipa barbata as dominant species... -
The time-frequency-quantile causal impact of Cable News-based Economic Policy Uncertainty on major assets returns
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Tomiwa Sunday Adebayo --- Cyprus International University, Turkey Oktay Özkan --- Faculty of Economics and Administrative Sciences, Tokat Gaziosmanpasa University, Turkey Emrah Sofuoğlu --- Kirsehir Ahi Evran University, Turkey Ojonugwa Usman --- Lebanese American University, LebanonAfter the collapse of the equity market in the early 2000s, the question of the drivers of financial assets returns preoccupied the interest of investors and policymakers in financial markets. Thus, this study explores how newly developed Cable News-based Economic... -
Arenicolidae (Annelida) in Norwegian waters: species occurrence, bathymetric distribution and identification of juvenile specimens
Item type: Journal Article • Journal: African Zoology • Authors: Marthe R Dille --- Norwegian University of Science and Technology, NTNU University Museum, Norway Jon A Kongsrud --- University Museum of Bergen, University of Bergen, Norway Martin M Hektoen --- Norwegian University of Science and Technology, NTNU University Museum, Norway Torkild Bakken --- Norwegian University of Science and Technology, NTNU University Museum, NorwayThe two species of Arenicolidae, Arenicola marina and Arenicolides ecaudata, are common along the Norwegian coast. Juveniles and anterior fragments are often encountered when grab sampling, making traditional morphological characteristics insufficient for species identification. This study examined the robustness of... -
Filling the gaps: herpetological checklist of Mayombe National Park and Cabinda Province (Angola) shed light on one of the most unexplored corners of tropical Central Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Javier Lobón-Rovira --- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Asociado, Universidade do Porto, Portugal Ninda L Baptista --- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Asociado, Universidade do Porto, Portugal Tyron Clark --- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa Luke Verburgt --- University of Pretoria, South Africa Gregory FM Jongsma --- New Brunswick Museum, Canada Werner Conradie --- Port Elizabeth Museum, South Africa Luis Veríssimo --- Fundação Kissama, Angola Pedro Vaz Pinto --- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Asociado, Universidade do Porto, PortugalThe global environmental crisis has reinforced the importance of improving the documentation of the geographical distributions of extant species. With this aim, species inventories of specific locations or regions are a high priority, especially so in poorly explored areas. Cabinda... -
New records of Fox’s Weaver Ploceus spekeoides significantly disrupt perceptions concerning its conservation status
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonathan Onongo --- , Uganda Achilles Byaruhanga --- , Uganda Dianah W Nalwanga --- , Uganda Micheal Kibuule --- , Uganda Nigel J Collar --- , United Kingdom Simon Valle --- , United StatesIUCN Red List categorisation helps prioritise species conservation efforts. Fox’s Weaver Ploceus spekeoides is a little-known passerine endemic to eastern Uganda and categorised as Near Threatened. Historical records (1913–1996) of this bird span nine sub-counties in the country, but more... -
Combinatorial approaches to the unit groups of Clifford algebras, I
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bokhee Im --- Chonnam National University, Republic of Korea Jonathan D.H. Smith --- Iowa State University, U.S.A.This is the first part of a two-part paper introducing the application of Latin square and quasigroup techniques within a combinatorial approach to the unit groups of Clifford algebras. The two fundamental tools employed are a theorem showing that each... -
Combinatorial approaches to the unit groups of Clifford algebras, II
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bokhee Im --- Chonnam National University, Republic of Korea Jonathan D.H. Smith --- Iowa State University, U.S.A.This is the second part of a two-part paper intended to introduce the use of Latin square and quasigroup techniques in a combinatorial approach to the unit groups of Clifford algebras. The aim of this part is to apply the... -
Solar energy, the silver bullet to tackle perennial energy access challenges in Nigeria rural households: A case study
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kesiena Owebor --- Delta State University, Nigeria Kesiena Ezewu --- Delta State University, Nigeria Justus Iroro Oboh --- Delta State University, Nigeria Jude Ebieladoh Sinebe --- Delta State University, Nigeria Ogheneakpobo Jonathan Eyenubo --- Delta State University, Nigeria Smith Orode Otuagoma --- Delta State University, Nigeria Esiri Monday Amagre --- Delta State University, NigeriaPoor access to clean energy impacts the livelihood of the Nigeria rural population. This study investigated the use of solar energy in tackling the recurrent energy access challenges in Isoko South, Nigeria. Both qualitative and quantitative methods were applied to... -
Editorial
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jonathan Stadler Andrew Spiegel Andrew Hartnack Tarminder Kaur Gilson Lázaro Hameedah Parker -
Book Review. Veld: The Gardens and Landscapes of Patrick Watson
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jonathan Foley --- , South Africa -
Seasonality in the events industry: A case study of two event venues in Amsterdam
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Cathelijne de Jong --- NHL Stenden University of Applied Sciences, The Netherlands Rodney Westerlaken --- NHL Stenden University of Applied Sciences, The NetherlandsThis study aims to expand academic understanding of seasonality by establishing if previous scholarly work on the subject is also applicable to the novel context of the urban event industry. A mixed-method approach combining qualitative and quantitative research was applied,... -
Forest Science Symposium 2024 – Ensuring a Sustainable Forestry Sector
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ilaria Germishuizen --- Institute for Commercial Forestry Research (ICFR), South Africa Wayne Jones --- Sappi Shaw Research Centre, South Africa Ronald Heath --- Forestry South Africa, South Africa -
Collaboration, creativity and care: pedagogical approaches in a South African undergraduate electronic music module
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Cameron Harris --- Wits School of Arts, South Africa Jonathan Crossley --- University of Liverpool, United KingdomCollaboration is a tool increasingly used in tertiary education, and a critical evaluation of it in this environment counters a culture of neoliberal transactions that may limit the creative process. This article reports the authors’ experiences during a decade of... -
Methane emission and performance indicators of sheep fed Super Napier grass, sodium hydroxide-treated rice straw and leaves of two browse species (Leucaena leucocephala and Albizia lebbek)
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: FO Sarkwa --- College of Basic and Applied Sciences, University of Ghana, Ghana V Antwi --- College of Basic and Applied Sciences, University of Ghana, Ghana EC Timpong-Jones --- College of Basic and Applied Sciences, University of Ghana, Ghana FY Obese --- College of Basic and Applied Sciences, University of Ghana, Ghana T Adogla-Bessa --- Evangelical Presbyterian University College, Ghana DY Osei --- Animal Research Institute, Ghana F Adu Boahene --- College of Basic and Applied Sciences, University of Ghana, Ghana S Andoh --- College of Basic and Applied Sciences, University of Ghana, GhanaMethane produced during enteric fermentation in ruminants is influenced by dietary factors. To lower enteric methane emissions without lowering overall production performance, appropriate diets are needed. Thus, the performance and methane emission of sheep fed Super Napier grass (SN), sodium... -
Bird community composition across a land use gradient in the eastern Democratic Republic of Congo
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Regine C Tabe Tiku --- Konrad Lorenz Institute of Ethology, University of Veterinary Medicine, Austria Samuel EI Jones --- Department of Biological Sciences, University of Cyprus, Cyprus Malange NF Elikwo --- Department of Microbiology and Parasitology, University of Buea, Cameroon Kowo Cyril --- Department of Microbiology and Parasitology, University of Buea, Cameroon Steve Ngoy --- Centre de Suiveillance de la Biodiversite, Universite de Kisangani, Democratic Republic of the Congo Virginia Zaunbrecher --- Center for Tropical Research, University of California, United States Ravinder NM Sehgal --- Department of Biology, San Francisco State University, United StatesCocoa agroforestry expansion is widespread in eastern Democratic Republic of Congo, posing a significant threat to the integrity of protected areas. Despite this threat, the impact of this expansion on forest bird communities remains largely unexamined. This study investigated bird... -
Binormal block Toeplitz operators with matrix valued circulant symbols
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nihat Gökhan Göğüş --- Sabanci University Istanbul, Turkey Rewayat Khan --- Sabanci University Istanbul, Turkey Eungil Ko --- Ewha Womans University, Korea Ji Eun Lee --- Sejong University, Republic of KoreaThis paper focuses on the binormality of block Toeplitz operators with matrix valued circulant symbols. We also study some Γ-dilations of Toeplitz operators. Moreover, we also analyze the invariant subspace of Toeplitz operators with matrix-valued symbols. -
‘The mountain has a story to tell’: transhumant production systems in the US Intermountain West
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hailey Wilmer --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Jonathan Spiess --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Katherine D White --- Department of Ecosystem Science and Management, University of Wyoming, USA Amira Burns --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Steven Cox --- Former Dubois Ranger District, Caribou-Targhee National Forest, USA John Derek Scasta --- Laramie Research and Extension Center, Department of Ecosystem Science and Management, University of Wyoming, USA Devan Allen McGranahan --- Livestock and Range Research Laboratory, USDA Agricultural Research Service, USA Carrie S Wilson --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Will Munger --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA J Bret Taylor --- USDA-ARS Range Sheep Production Efficiency Research Unit, USAGrazing systems research has taken a notable social-ecological turn in response to recent debates, and integrative work is still needed to address gaps in our understanding of multiscalar dynamics in transhumant systems. Transhumance encompasses diverse cultures, ecological relationships, and traditions...
