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The use of the cellulase digestion procedure for indexing the dry matter digestibility of forages

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P J K Zacharias --- Department of Grassland Science,

The in vitro cellulase technique was compared with the rumen liquor technique and found to be more efficient for the indexing of the dry matter disappearance (DMD) of forages. A cellulase enzyme concentration of 80 IU/gDM gave a satisfactory linear...

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A comparison of continuous and rotational grazing on veld at two stocking rates

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.L. Barnes --- Department of Agricultural Development (Transvaal Region), Republic of South Africa R.P. Denny --- , Republic of South Africa

Two rotational grazing procedures, a four‐paddock system with a 10‐day period of stay and an eight‐paddock system with a 5‐day period of stay, were compared with continuous grazing on veld. The trial was conducted 40 km south of Bulawayo in...

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A critical analysis of veld management recommendations for sourveld in the south‐eastern Transvaal

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.L. Barnes --- Department of Agricultural Development (Transvaal Region), Republic of South Africa

Surveys have shown that the grazing value of veld in the south‐eastern Transvaal is well below the estimated potential. Extension efforts aimed at rectifying the situation have been unsuccessful in that most recommendations have not been acceptable to producers. An...

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Effect of soil fertility on the vegetative growth, yield and water use of wheat (Triticum aestivum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.G. Annandale --- Department of Plant Production, Republic of South Africa P.S. Hammes --- Department of Plant Production, Republic of South Africa P.C. Nel --- Department of Plant Production, Republic of South Africa

Well-fertilized wheat was found to use more water than wheat on poorly fertilized plots, but the yield was increased, resulting in increased water-use efficiency. Variations in leaf area duration after anthesis accounted for 81% of the variation in yield.

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Evaluation of the coefficients of the Ångström formula for the estimation of solar radiation in South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. C.M. Reid --- Department of Water Affairs,

The regression coefficients of a modified Ångström formula, initially postulated as being constant under all climatic conditions, have with widespread use been shown to vary not only spatially but also due to variable sunshine duration conditions. Daily sunshine duration and...

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Die invloed van planttyd en plantdigtheid op die duurte en tempo van graanvul van mielies (Zea mays L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.P. Pretorius --- , Republiek van Suid-Afrika J.J. Human --- Departement Agronomie, Republiek van Suid-Afrika

Die invloed van planttyd en plantdigtheid op die lengte van die graanvulperiode en die graanvultempo van mielies is in veldproewe ondersoek. Plantdigtheid het die periode en tempo van graanvul nie betekenisvol beïnvloed nie. Die graanvulperiode het betekenisvol toegeneem terwyl die...

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Comparison of protein extraction procedures to assess the effect of quantitative protein composition on the bread-making quality of South African winter wheat cultivars

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D. van Lill --- Small Grain Centre, Republic of South Africa B.S. Wentzel --- Small Grain Centre, Republic of South Africa MarieF. Smith --- , Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South Africa

A suitable technique for the extraction of wheat flour protein fractions was pursued to assess the effect of quantitative protein composition on the bread-making quality of winter wheat cultivars on a large scale. Nine procedures involving the use of different...

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Partial resistance to Puccinia triticina in certain Triticum species

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.E. Snyman --- Department of Plant Pathology, South Africa Z.A. Pretorius --- Department of Plant Pathology, South Africa F.J. Kloppers --- , South Africa C.M. Bender --- Department of Plant Pathology, South Africa

Resistance to rust diseases of common wheat (Triticum aestivum) has often been transferred from related species. These alien genes usually mediate hypersensitive, and frequently non-durable, resistance to leaf rust caused by Puccinia triticina. Partial resistance may be more durable than...

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Associations of yield and yield components among selected durum wheats (Triticum turgidum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.A. Shimelis --- , South Africa

Associations of seed yield (SY) and important agronomic traits were studied among selected durum wheats (Triticum turgidum L.) to establish the relationship and pinpoint the best selection criteria. Controlled glasshouse studies were conducted over two years (2002–2003) using 14 diverse...

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Evaluation of a class of possible simple interim management procedures for the Namibian hake fishery

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: D. S. Butterworth H. F. Geromont

During 1997, considerable scientific differences arose about the status of the Namibian hake (Merluccius capensis and M. paradoxus) resource, and as to whether the hake Total Allowable Catch (TAC) should be substantially decreased or increased. These differences revolved primarily around...

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POPULATION DYNAMICS AND DEMOGRAPHY OF AN ESTUARINE COPEPOD (PSEUDODIAPTOMUS EESSEI) IN LAKE SIBAYA, A SUBTROPICAL FRESHWATER COASTAL LAKE

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: RC Hart --- , South Africa

Population size and stage structure of Pseudodiaptomus hessei (Mrázek) was studied over 27 months at a single site in subtropical Lake Sibaya. Population density varied seasonally from about 1 to 4 individuals per litre, but a fairly stable population structure...

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FISH TRAPPING DURING THE OPERATION OF THE DURBAN HARBOUR GRAVING DOCK, SOUTH AFRICA

Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: L.E. Beckley --- , South Africa R.P. van der Elst --- , South Africa S.A. Chater --- , South Africa S.L. Birnie --- , South Africa

The species composition and abundance of fishes trapped on the grids covering the drainage outlets in the Durban harbour graving dock were investigated over a 12 month period. Fifty-three species of fish and several invertebrates, including the crabs Scyllaserrata and...

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Impacts of non-selective grazing on cover, composition, and productivity of Nama-karoo grassy shrubland

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.C. Beukes R.M. Cowling

The non-selective rotational grazing system has undergone a long and controversial development. The merits of this grazing system, where relatively large numbers of livestock are herded into numerous small paddocks for short timespans with long rests between grazings, have not...

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Effect of three grazing intensities on selected soil properties in semi‐arid west Texas

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: E.M. Seitlheko --- Department of Agronomy, United States of America B.L. Allen --- Department of Agronomy, United States of America D.B. Wester --- Department of Agronomy, United States of America

Soils in the study, carried out in the Texas Trans‐Pecos region, were fine‐loamy, mixed, thermic Aridic Calciustolls; fine‐loamy, mixed, thermic Aridic Ustochrepts; and fine, mixed, thermic Typic Chromusterts. Our primary objective was to determine the effect of three grazing intensities...

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A Comparison of the kraft pulp properties of P. elliottii and the P. elliottii x P. caribaea var. hondurensis hybrid grown in Queensland, Australia

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: T.K. Stanger --- Shaw Research Centre, South Africa M. J.P. Shaw --- Shaw Research Centre, South Africa R. Braunstein --- , South Africa D.G. Nikles --- , Australia

The interspecific hybrid between P. elliottii var. elliottii and P. caribaea var. hondurensis has recently been accepted for planting operationally as an alternative to P. elliottii by Sappi in South Africa. Some concerns have been expressed as to the suitability...

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Cutting down very simple trees

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Alois Panholzer

We study here, by using a recursive approach, the number of random cuts that are necessary to destroy a random tree of size n for simply generated tree families. Crucial for the applicability of such a recursive approach is a...

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Needlestick injuries in an era of HIV: technical and personal aspects

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Marion Stevens David Dickinson

Hospitals are workplaces in which HIV has double significance. Needlestick accidents link patients, healthcare workers and cleaning staff through the risk of occupational exposure to HIV. Additionally, concern over needlestick injuries may embody HIV stigma, discrimination and fear. This paper...

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The influence of pool size on species diversity and water chemistry in temporary rock pools on Domboshawa Mountain, northern Zimbabwe

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Anusa --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, Zimbabwe HGT Ndagurwa --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, Zimbabwe CHD Magadza --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, Zimbabwe

The effect of pool size (area and depth) on species diversity and physicochemical characteristics of rock pool habitats on Domboshawa Mountain, northern Zimbabwe, was studied from December 2006 to May 2007. Pools were categorised based on maximum depth. Pool duration...

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Influence of flood variation on seasonal floodplain vegetation communities in the Okavango Delta, Botswana

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Tsheboeng --- Okavango Research Institute, Botswana MC Bonyongo --- Okavango Research Institute, Botswana M Murray-Hudson --- Okavango Research Institute, Botswana

This study investigated the influence of flooding variation on floodplain vegetation in the Nxaraga Lagoon seasonal floodplains by sampling community composition and soil nutrient content in 1997, when flood levels were unusually low, and again in 2010 when flood levels...

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Assessment of the Linefishery in Two Urban Estuarine Systems In Kwazulu-natal, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P. Pradervand L. E. Beckley B. Q. Mann P. V. Radebe

The recreational linefisheries in Durban Harbour and the Mgeni Estuary were surveyed using roving creel and access-point surveys during the period January–December 2000. In total, 3 351 shore-anglers and 652 boat-anglers were checked for catch-and-effort information, and 432 shore-anglers were...

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Limits to the use of environmental indices to reduce risk and/or increase yield in the South African anchovy fishery

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JAA De Oliveira DS Butterworth

Environmental indices that provide short-term predictions of recruitment have the potential to improve the average yield from highly productive resources that sustain recruit fisheries without an associated increase in risk (of resource 'collapse'). This is particularly true for cases where...

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Intra-regional translocations of epifaunal and infaunal species associated with cultured Pacific oysters Crassostrea gigas

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TM Haupt --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa CL Griffiths --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa TB Robinson --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa

Farmed oysters host a diverse community of epifaunal and infaunal fouling taxa, including alien species, and these are easily translocated in the course of commercial oyster trade. We document the diversity and densities of fouling taxa associated with farmed oysters...

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Protecting wood with a water repellent/ paint combination

Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.D. van Zyl --- , W.J. van Wyk --- ,

The influence of high and/or low solids water repellent on the durability of an alkyd enamel paint on P. radiata was investigated. Apart from increasing the drying time of the first paint coat, a low solids water repellent proved a...

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The impact of community-based forest management on timber treeregeneration in north-eastern Honduras, with specific reference tobig-leaf mahogany (Swietenia macrophylla)

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: M Kukkonen --- Department of Biological and Environmental Sciences, Finland

Reduced-impact logging is used to minimise the negative effects of selective logging. However, it has been suggested that low-impact logging may create too little disturbance for the regeneration of the light-demanding timber tree species, hence compromising forest productivity. This study...

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The flexural properties of young Pinus elliottii x Pinus caribaea var. hondurensis timber from the Southern Cape and their prediction from acoustic measurements

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CB Wessels --- Department of Forest and Wood Science, South Africa GP Dowse --- Department of Forest and Wood Science, South Africa HC Smit --- Department of Forest and Wood Science, South Africa

The objectives of this study were to determine the bending strength and stiffness properties of young Pinus elliottii x P. caribaea var. hondurensis timber from the Southern Cape, South Africa, and to evaluate the predictability of these properties from acoustic...

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Exposure to information and communication about HIV/AIDS and perceived credibility of information sources among young people in northern Tanzania

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sheri Bastien --- Institute for Educational Research, Faculty of Education, Norway MelkizedekT Leshabari --- , Tanzania Knut-Inge Klepp --- Center for Prevention of Global Infections (GLOBINF), Faculty of Medicine, Norway

Young people in sub-Saharan Africa constitute an important group for HIV prevention efforts. Determining their exposure to HIV/AIDS information and communication and their perceived credibility of information sources is imperative to the development of interventions. However, the majority of studies...

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Experiences of collaboration, coordination and efficiency in the delivery of HIV/AIDS home-based care in Zimbabwe

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Mazzeo --- Department of Anthropology, United States Loveness Makonese --- Department of Sociology and Anthropology, South Africa

The difficulties of achieving successful collaboration between stakeholders can lead to uncoordinated and fragmented outcomes for HIV/AIDS programming, which has consequences for the immediate health and livelihood security of the intended beneficiaries. This article examines the collaboration between local, national...

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Diving behaviour of African penguins: do they differ from other Spheniscus penguins?

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PG Ryan SL Petersen A Simeone D Grémillet

African penguins Spheniscus demersus closely resemble Magellanic S. magellanicus and Humboldt S. humboldti penguins and have similar breeding and feeding ecologies. Adults feed on pelagic schooling fish in continental shelf waters, but African penguins have been reported to have shallower...

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A history of recent bases for management and the development of a species-combined Operational Management Procedure for the South African hake resource

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RA Rademeyer DS Butterworth ÉE Plagányi

The bases for historical catch limits placed on the hake fishery are reviewed in brief for earlier years and then in some depth over the period from 1991 when the Operational Management Procedure (OMP) approach was introduced for this fishery...

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The febrile parturient: choice of anesthesia

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Krzysztof M Kuczkowski --- Departments of Anesthesiology and Reproductive Medicine,

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Advances in obstetric anesthesia: ambulation during labor with combined spinal-epidural analgesia

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: KM Kuczkowski --- Departments of Anesthesiology and Reproductive Medicine, USA

Epidural analgesia is widely considered as the most effective method of providing pain relief in labor. However, epidural labor analgesia is not a generic procedure and many technical modifications have been invented over time. Continuous search for a balanced labor...

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Anaesthetic management of a parturient with severe pulmonary stenosis undergoing Caesarean section

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JK Makkar --- Department of Anaesthesia and Intensive Care, India S Jindal --- Department of Anaesthesia and Intensive Care, India A Jain --- Department of Anaesthesia and Intensive Care, India J Wig --- Department of Anaesthesia and Intensive Care, India

We report the successful management of a parturient with severe pulmonary stenosis undergoing Caesarean section. Anaesthesia was managed with combined spinal and epidural anaesthetic technique. During the intraoperative period, haemodynamic parameters were well maintained. There were no episodes of haemodynamic...

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Emergency Caesarean section in a patient with known sickle-cell disease and myasthenia gravis

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AA Ehiozie-Osifo --- Department of Anaesthesia, Nigeria JO Olatosi --- Department of Anaesthesia, Nigeria OT Kushimo --- Department of Anaesthesia, Nigeria

A 33-year-old patient with known sickle-cell disease (SS) booked for antenatal care at the Lagos University Teaching Hospital at six weeks gestational age. She had been diagnosed with myasthenia gravis three years prior to presentation and placed on oral anticholinesterase...

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Case study: Anaesthetic management of an achondroplastic dwarf undergoing radical nephrectomy

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Jain --- Department of Anaesthesia and Intensive Care, India K Jain --- Department of Anaesthesia and Intensive Care, India JK Makkar --- Department of Anaesthesia and Intensive Care, India K Mangal --- Department of Anaesthesia and Intensive Care, India

A three feet two inch (96 cm) tall achondroplastic patient with urothelial cell carcinoma involving renal pelvis was scheduled for a radical nephrectomy. Radial artery cannulation and central venous access were secured in the pre-induction period. After induction, the airway...

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Case study: An unusual cause of clotted blood in epidural catheter

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Kiran --- Department of Anaesthesia, Pandit Bhagwat Dayal Sharma, India R Taneja --- Department of Anaesthesia, Pandit Bhagwat Dayal Sharma, India

The failure of an epidural catheter after initially functioning well may be due to kinking, knotting or epidural catheter lumen blockage. The presence of blood in the epidural catheter is usually due to the catheter's traumatic placement or to intravascular...

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Cervical epidural anaesthesia for shoulder arthroscopy and effective postoperative physiotherapy for a frozen shoulder: a case study

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: K Marodkar --- Department of Anaesthesiology, India S Deshmukh --- Department of Anaesthesiology, India

Shoulder arthroscopy is used to treat various diseases of the shoulder, including refractory adhesive capsulitis. Effective postoperative pain relief is critical for these patients, as the success of surgery largely depends on early and regular physiotherapy. Although traditionally, various methods...

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Transient aphasia following spinal anaesthesia in an orthopaedic patient

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: B Tripat --- Department of Anaesthesia and Critical Care, India G Ruchi --- Department of Anaesthesia and Critical Care, India T Sonika --- Department of Anaesthesia and Critical Care, India

A 50-year-old male [American Society of Anesthesiologists (ASA) grade II] was scheduled for lower limb orthopaedic surgery. The subarachnoid space was localised with difficulty at L3/4 interspace and 3 ml of hyperbaric bupivacaine was given. Within a few minutes, the...

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Utility of neuroimaging in postpartum headache work-up: case report and diagnostic considerations

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: VV Ajith --- Department of Anaesthesiology, India N Shetty --- Department of Anaesthesiology, India C Paul --- Department of Anaesthesiology, India P Reddy --- Department of Anaesthesiology, India

A postpartum headache is commonly seen in clinical practice, especially after a subarachnoid block. Generally, it is treated as a postdural puncture headache. We report on a case of a 24-year-old primigravida who underwent emergency Caesarean delivery under spinal anaesthesia...

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Accidental deposition of local anaesthetic in the subdural space following caudal block

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Prachee Sachan Veena Asthana Sanjay Agrawal --- Department of Anaesthesia, India

The incidence of accidental injection of local anaesthetic into the subdural space during neuraxial blockade is rare. The presentation of unexplainable clinical signs that do not match the clinical picture of subarachnoid or intravascular injection of the local anaesthetic agent...

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New innovations in interventional cardiac procedures - role of intraprocedural echocardiography

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Eibel --- Department of Anesthesiology and Intensive Care Medicine, Heart Centre, Germany J Ender --- Department of Anesthesiology and Intensive Care Medicine, Heart Centre, Germany

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Procedural sedation and analgesia for out-of-hospital breast surgery: an overview of the procedural sedation and analgesia technique

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AJ Louw --- ,

Out-of-hospital surgical procedures are a rapidly growing market. This has led to surgical procedures that were previously limited to the hospital operating room, with general anaesthesia being performed outside the hospital with sedation and regional anaesthesia. Breast surgery, whether cosmetic,...

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Perioperative effect of epidural dexmedetomidine with intrathecal bupivacaine on haemodynamic parameters and quality of analgesia

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: D Jain --- Department of Anaesthesiology and Intensive Care, India RM Khan --- Department of Anaesthesiology, Oman D Kumar --- Department of Medicine, India N Kumar --- Department of Anaesthesiology and Intensive Care, India

Background: The present study was a randomised controlled trial designed to evaluate the perioperative effect of epidural dexmedetomidine, in conjunction with intrathecal bupivacaine.

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Lumbar puncture for the generalist

Item type: Journal Article • Journal: South African Family Practice • Authors: JM Boon --- Department of Anatomy, Section of Clinical Anatomy, South Africa PH Abrahams --- Kigezi International School of Medicine, United Kingdom JH Meiring --- Department of Anatomy, Section of Clinical Anatomy, South Africa T Welch --- Kigezi International School of Medicine, United Kingdom

The safe and successful performance of a lumbar puncture demands a working and yet specific knowledge as well as competency in performance. This review aims to aid understanding of the knowledge framework, the pitfalls and complications of lumbar puncture. It...

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Outcome of pregnancy in the morbidly obese woman

Item type: Journal Article • Journal: South African Family Practice • Authors: E Ngoga --- Department of Obstetrics asnd Gynaecology, D Hall --- Department of Obstetrics asnd Gynaecology, F Mattheyse --- Department of Anaesthesiology and Critical Care, D Grové --- Department of Obstetrics asnd Gynaecology,

Background: Obesity is a growing global health problem. In South Africa, more than half of the adult women are overweight and almost 30% are obese. The problems associated with obesity, such as diabetes, hypertension, thrombo-embolism and coronary heart disease, are...

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An audit of surgical termination of pregnancy at a level 1 health facility in South Africa

Item type: Journal Article • Journal: South African Family Practice • Authors: J Devjee --- Department of Obstetrics and Gynaecology, S Khedun --- Department of Obstetrics and Gynaecology, J Moodley --- Women's Health and HIV Research Unit,

Background: It was alleged that the termination of pregnancy (TOP) services in a certain district health facility were forgoing the opportunity to offer screening tests for human immunodeficiency virus (HIV) and syphilis for women seeking legal medical abortions. In addition,...

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The effect of the introduction of a standard monitoring protocol on the investigations performed on the metabolic control of type 2 diabetes at Addington Hospital Medical Outpatients Department, Durban, South Africa

Item type: Journal Article • Journal: South African Family Practice • Authors: JM Gill --- Department of Family Medicine, A Ross --- Department of Family Medicine, F Pirie --- Department of Diabetes and Endocrinology, Division of Medicine, T Esterhuizen --- Programme of Biostatistics,

Background: A comprehensive approach to the control of type 2 diabetes is required to reduce mortality and morbidity. To improve diabetes management, in 2005 a protocol for the monitoring and management of type 2 diabetes, aligned to the 2003 Society...

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Thoughts on the state of family medicine in South Africa

Item type: Journal Article • Journal: South African Family Practice • Authors: I Couper --- Department of Family Medicine, Faculty of Health Sciences, S Fehrsen --- Enablemed (Pty) Ltd, J Hugo --- Department of Family Medicine, Faculty of Health Sciences,

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The prevalence of suicidal behaviour and associated risk factors in grade 8 learners in Durban

Item type: Journal Article • Journal: South African Family Practice • Authors: N Vawda --- Cert Trauma and Mental Health Research Training,

Objectives: Most of the research on suicidal behaviour in youth focuses on developed countries. Less is known about the prevalence of suicidal behaviour and associated risk factors in community samples of youth who do not present for mental health care...

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Sociodemographic and clinical profiles of suicidal patients requiring admission to hospitals south of Durban

Item type: Journal Article • Journal: South African Family Practice • Authors: SS Naidoo --- Department of Family Medicine, L Schlebusch --- Department of Behavioural Medicine,

Background: Suicidal behaviour has become a major public health concern worldwide. Non-fatal suicidal attempts outnumber fatal episodes by wide-ranging figures across, and within, many countries. Approximately 6 500 suicides and 130 000 suicide attempts occur annually in South Africa, with...

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Larval development reflects biogeography in two formerly synonymised southern African coastal crabs

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Papadopoulos --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South Africa PR Teske --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South Africa

The southern African crab Hymenosoma orbiculare was recently split into five distinct species, of which three are estuarine/coastal and have peripatric distributions that are linked to temperature-defined marine bioregions. This suggests that the species’ ranges may be limited by physiological...

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Labour epidural analgesia audit in a teaching hospital in a developing country

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: G.G. Jacobs-Martin --- Department of Anesthesiology and Critical Care, South Africa J.L. Burke --- Department of Anesthesiology and Critical Care, South Africa A.I. Levin --- Department of Anesthesiology and Critical Care, South Africa A.R. Coetzee --- Department of Anesthesiology and Critical Care, South Africa

Background: Neuraxial analgesia is currently considered to be the most effective method of intrapartum analgesia, causing little maternal and foetal sedation. While epidural analgesia has been well studied in developed countries, it is uncertain whether or not the results, particularly...

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Sedation with alfentanil and propofol for rhizotomies

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: M Jansen van Rensburg --- Anaesthesiology Private Practice, South Africa EC Conradie --- Department of Microbial, Biochemical and Foodbiotechnology, South Africa

Background: Patient safety during sedation for closed rhizotomies is improved when analgesia is optimised, rather than relying on deep sedation for patient comfort. This retrospective study determined the appropriate effect-site concentration (Ce) for alfentanil, in combination with a constant propofol...

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The infrastructural passions of urban mutuality

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Christine Hentschel --- Institute for Criminological Research, Germany

The article suggests an “infrastructural” approach to mutuality in the city. What organises mutuality is less a matter of the common urban horizon or the grown community than of “enabling conditions” (Calhoun) we would call infrastructures: their makeup shapes how...

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Ontogenetic dietary shift and morphological correlates for Diplodus capensis (Teleostei: Sparidae) in southern Angola

Item type: Journal Article • Journal: African Zoology • Authors: Timothy J. Richardson --- Department of Ichthyology and Fisheries Science, South Africa Warren M. Potts --- Department of Ichthyology and Fisheries Science, South Africa Carmen V. Santos --- Faculdade Ciências da Universidade Agostinho Neto (FCUAN), Angola Warwick H.H. Sauer --- Department of Ichthyology and Fisheries Science, South Africa

Allometric growth patterns of functional morphological variables that reflect resource use in fish were correlated with the diet of Diplodus capensis in southern Angola. A total of 114 individuals (76–336 mm FL) were collected for stomach content analysis and a...

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New status for two African giant forest shrews, Crocidura goliath goliath and C. goliath nimbasilvanus (Mammalia: Soricomorpha), based on molecular and geometic morphometric analyses

Item type: Journal Article • Journal: African Zoology • Authors: F. Jacquet --- Département de Systématique et Evolution, Muséum National d’Histoire Naturelle, France R. Hutterer --- Section of Mammals, Zoologisches Forschungmuseum A. Koenig, Germany V. Nicolas --- Département de Systématique et Evolution, Muséum National d’Histoire Naturelle, France J. Decher --- Department of Biology, U.S.A. M. Colyn --- Université de Rennes 1, CNRS, France A. Couloux --- Génoscope, Centre National de Séquenç age, France C. Denys --- Département de Systématique et Evolution, Muséum National d’Histoire Naturelle, France

Crocidura goliath nimbasilvanus Hutterer, 2003 (replacement name for C. odorata guineensis Heim de Balsac, 1968) from West Africa (Guinea, Liberia, Ivory Coast) and Crocidura goliath goliath Thomas, 1906 from Central Africa (Cameroon, Central African Republic, Gabon, Republic of Congo, Democratic...

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Chromosomal rearrangements occurred repeatedly and independently during species diversification in Malagasy geckos, genus Paroedura

Item type: Journal Article • Journal: African Zoology • Authors: Gennaro Aprea --- Dipartimento di Biologia, Italy Franco Andreone --- Museo Regionale di Scienze Naturali, Italy Domenico Fulgione --- Dipartimento di Biologia, Italy Agnese Petraccioli --- Dipartimento di Biologia, Italy Gaetano Odierna --- Dipartimento di Biologia, Italy

We conducted a phylogenetic study through karyological data, by standard staining and Ag-NOR banding, and molecular analysis (by 12S and 16S mitochondrial rRNA genes and nuclear gene C-mos) on 11 species of Malagasy geckos, genus Paroedura, and two relatives (Ebenavia...

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Historical demography of southern African patellid limpets: congruence of population expansions, but not phylogeography

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KL Mmonwa --- SANBI Marine Programme, South Africa PR Teske --- Department of Zoology, South Africa CD McQuaid --- Coastal Research Group, Department of Zoology and Entomology, South Africa NP Barker --- Molecular Ecology and Systematics Group, Department of Botany, South Africa

Global climatic oscillations have shaped the contemporary genetic structure of marine taxa in different ways. Previous demographic studies have indicated that various intertidal marine species display genetic signatures of demographic expansion that either pre- or postdate the Last Glacial Maximum...

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A concepts based model for the teaching of an introductory accounting course

Item type: Journal Article • Journal: De Ratione • Authors: David L Kolitz --- Senior Lecturer in the Department of Accounting at the University of the Witwatersrand,

This paper examines the procedural and conceptual approaches to the teaching of introductory accounting. The focus of this paper is on a concepts model that integrates the procedural and conceptual approaches by teaching first year accounting students to understand the...

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A knotty affair

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Srivishnu Vardhan Yallapragada --- Department of Anaesthesiology, India Nagendra Nath Vemuri --- Department of Anaesthesiology, India Mastan Saheb Shaik --- Department of Anaesthesiology, India

Continuous epidural anaesthesia through a catheter certainly offers the advantage of titrated, safe and prolonged anaesthesia along with a good quality of postoperative analgesia. Epidural catheters can cause some complications and one such rare complication is knotting in the epidural...

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Sleep duration and chronotype in adults in Côte d'Ivoire: influence of gender, religion and age

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Claudia Borchers --- Max Planck Institute of Evolutionary Anthropology, Germany Dabila Ouattara --- Wild Chimpanzee Foundation, Switzerland Christian Vollmer --- Institute of Psychology, Germany Christoph Randler --- Institute of Science, Geography and Technology, Germany

This study investigated the sleep-wake rhythm and chronotype of people living in Côte d'Ivoire. We assessed sleep-wake behaviour in 556 adults (336 men, 220 women) between 25 and 54 years (mean: 38.63) by means of structured interviews. Data were analysed...

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Patient satisfaction during and following procedural sedation for ambulatory surgery

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Cherese Lapere --- University of the Western Cape, South Africa James Roelofse --- University of the Western Cape, South Africa Yusof Omar --- University of the Western Cape, South Africa Andre du Plessis --- Eastman Dental Institute, UK Andre von Backstrom --- Sedation Solutions, UK Will Botha --- Sedation Solutions, UK Craig Cook --- Sedation Solutions, UK Gideon Bosch --- Sedation Solutions, UK

Background: Patient satisfaction is multidimensional. The clinician’s perspective of a good outcome and the patient’s experience of a satisfactory service are often two different end-points. The primary aim of our study was to assess the perioperative experience of patients undergoing...

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Postdural puncture headache: evidence-based review for primary care

Item type: Journal Article • Journal: South African Family Practice • Authors: Olufemi Babatunde Omole --- Department of Family Medicine, South Africa Gboyega Adebola Ogunbanjo --- Department of Family Medicine & Primary Health Care, South Africa

The promotion of epidural and spinal blocks as preferred and safe techniques for Caesarean section and the use of lumbar puncture for diagnostic and therapeutic purposes place patients at risk of developing postdural puncture headache (PDPH). This article reviews the...

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Outcome of cholera admissions in Bauchi, Nigeria

Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Philip Kolo --- Department of Medicine, Nigeria Yusaf Jibrin --- Department of Medicine, Nigeria Emmanuel Sanya --- Department of Medicine, Nigeria Muhammad Alkali --- Department of Medicine, Nigeria Alakija Salami --- Department of Medicine, Nigeria Ayodele Omotoso --- Department of Medicine, Nigeria Abdulrahman Tahir --- Department of Medicine, Nigeria

In 2007, the World Health Organization Regional Committee for Africa officially noted the resurgence of cholera in the Africa subregion, and called for strengthening of policies on water supply and sanitation. We study the mortality profile of patients admitted for...

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Graded epidural anaesthesia for Caesarean section in a parturient with Shone’s syndrome: a case study

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Anjum Naz --- Department of Anaesthesiology and Intensive Care, India Sugata Dasgupta --- Department of Anaesthesiology and Intensive Care, India Bijoy Kumar Bandyopadhyay --- Department of Anaesthesiology and Intensive Care, India Hasibul Hasan Shirazee --- Department of Obstetrics and Gynaecology, India

Pregnancy with underlying heart disease is a unique challenge both to the obstetrician and the anesthesiologist. Asymptomatic women with mild to moderate single lesions can successfully carry a pregnancy to term and undergo vaginal delivery. However, pregnancy can result in...

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Caesarean section in Eisenmenger’s syndrome: anaesthetic management with titrated epidural and nebulised alprostadil

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Sugata Dasgupta --- Division of Critical Care Medicine, Department of Anaesthesiology & Critical Care Medicine, India Soumi Das --- Department of Cardiac Anaesthesiology, India Biswajit Majumdar --- Department of Cardiology, India SM Basu --- Former Professor & Head, Calcutta National Medical College, India

Pregnancy in patients with Eisenmenger’s syndrome is associated with a high mortality. This article reports two cases of women with Eisenmenger’s syndrome (secondary to two different primary cardiac defects) who presented with near-term pregnancies. Both the patients underwent successful elective...

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Plastic ingestion by estuarine mullet Mugil cephalus (Mugilidae) in an urban harbour, KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Naidoo --- School of Life Sciences, South Africa AJ Smit --- Department of Biodiversity and Conservation Biology, South Africa D Glassom --- School of Life Sciences, South Africa

Coastal urban environments have high plastic pollution levels, and hence interactions between plastic debris and marine life are frequent. We report on plastic ingestion by mullet Mugil cephalus in Durban Harbour, KwaZulu-Natal, South Africa. Of 70 mullet (13.0–19.5 cm total length),...

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Characterisation of a Tunisian coastal lagoon through hyperspectral underwater irradiance

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DH Nourisson --- Department of Biology, Italy F Scapini --- Department of Biology, Italy L Massi --- Department of Biology, Italy L Lazzara --- Department of Biology, Italy

North African coastal lagoons are unique ecosystems that often suffer degradation due to human activities. Therefore, monitoring methods are required to identify stressors and assist with the management of these valuable and often understudied ecosystems. A synthetic indicator of water...

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Pancreas cancer with Whipple’s operation

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: R. Blaauw --- Associate Professor,

The following case study was discussed at the SASPEN Workshop held during the Nutrition Congress 2014. It is a reflection of the general opinion of the audience, followed by a rationale of the latest literature on the topic. Herewith follows...

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Thoracic epidural anaesthesia for major abdominal surgeries: experience in private hospital setting in Uyo, South-South Nigeria

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Otu E Etta --- Department of Anaesthesia, Nigeria Kingsley Umeh --- Department of Surgery, Nigeria Sylvia G Akpan --- Department of Anaesthesia, Nigeria

Background: Thoracic epidural anaesthesia (TEA) has many benefits over general anaesthesia in major abdominal surgeries including avoidance of endotracheal intubation.

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Dynamics and role of the Durban cyclonic eddy in the KwaZulu-Natal Bight ecosystem

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LA Guastella --- Bayworld Centre for Research and Education, South Africa MJ Roberts --- Ocean Sciences and Marine Food Security, South Africa

The semi-permanent Durban Eddy is a mesoscale, lee-trapped, cold-core cyclonic circulation that occurs off the east coast of South Africa between Durban in the north and Sezela, some 70 km to the south. When present, strong north-eastward countercurrents reaching 100...

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Do long memory and asymmetries matter when assessing downside return risk?

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Nico Katzke --- Economics Department, South Africa Chris Garbers --- Economics Department, South Africa

In this paper we set out to test whether, on sector level, returns series in South Africa exhibit long memory and asymmetries and, more specifically, whether these effects should be accounted for when assessing downside risk. The purpose of this...

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The effect of yield curve shape and level on bond immunisation effectiveness

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Brendan Prettejohn --- Department of Economics, South Africa Gary van Vuuren --- School of Economics, South Africa

The effect of different-shaped yield curves on the effectiveness of bond immunisation was investigated. Bonds were priced using historical yield curves of various shapes and simulated interest rate shocks applied. The resulting end-values of these bonds were calculated and compared...

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Self-perceived readiness of medical interns in performing basic medical procedures at the Universitas Academic Health Complex in Bloemfontein

Item type: Journal Article • Journal: South African Family Practice • Authors: SIN Yiga --- Faculty of Health Sciences, Department of Family Medicine, South Africa J Botes --- Faculty of Health Sciences, Department of Family Medicine, South Africa G Joubert --- Faculty of Health Sciences, Department of Biostatistics, South Africa S Bulane --- Faculty of Health Sciences, South Africa T Choane --- Faculty of Health Sciences, South Africa K Mogale --- Faculty of Health Sciences, South Africa M Rapitse --- Faculty of Health Sciences, South Africa C Ruiters --- Faculty of Health Sciences, South Africa

Background: Medical internship in South Africa is a two-year period after completing the basic medical degree. Interns rotate through six different domains, where they are exposed to various clinical procedures. These skills are often not up to standard, and interns...

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Dispensing patterns of prescription-only antiobesity preparations in South Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Ilse Truter --- Drug Utilization Research Unit (DURU), Department of Pharmacy, South Africa

Objectives: The aim of the study was to investigate the dispensing patterns of prescription-only antiobesity preparations in South Africa (classified as Anatomical Therapeutic Chemical (ATC) group A08).

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Does high-density stocking affect perennial forbs in mesic grassland?

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Sindiso Chamane --- School of Life Sciences, South Africa Kevin P Kirkman --- School of Life Sciences, South Africa Craig Morris --- Agricultural Research Council–Animal Production Institute, c/o University of KwaZulu-Natal, South Africa Tim O’Connor --- South African Environmental Observation Network, South Africa

Livestock production is an appropriate land use for mainstreaming biodiversity conservation, but little is known about the impact of grazing strategies on forbs that contribute most species, in grasslands. This study compared the effects of high-density, short-duration stocking (HDG) with...

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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 Africa

Background: 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...

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Analgesic efficacy of dexmedetomidine versus fentanyl as an adjunct to thoracic epidural in patients undergoing upper abdominal surgery: a randomized controlled trial

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Neerja Bharti --- Department of Anesthesia & Intensive Care, India Shweta N Pokale --- Department of Anesthesia & Intensive Care, India Indu Bala --- Department of Anesthesia & Intensive Care, India Vikas Gupta --- Department of Surgery, India

Background: This randomised, double-blind study was designed to assess the analgesic efficacy of dexmedetomidine as compared with fentanyl as an adjunct to local anaesthetic in thoracic epidural for upper abdominal surgeries.

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Adult plant resistance to leaf rust and stem rust of wheat in a newly developed recombinant inbred line population

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sandiswa Figlan --- School of Agricultural, Earth and Environmental Sciences, South Africa Tarekegn G Terefe --- Agricultural Research Council–Small Grain Institute, South Africa Hussein Shimelis --- School of Agricultural, Earth and Environmental Sciences, South Africa Toi J Tsilo --- Agricultural Research Council–Small Grain Institute, South Africa

Leaf rust caused by Puccinia triticina and stem rust by P. graminis f. sp. tritici are the most destructive diseases of wheat (Triticum aestivum L.), resulting in substantial yield losses globally. A continuous search for new sources of effective rust...

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Transforaminal epidural steroid injections for the treatment of lumbosacral radicular pain in a Nigeria tertiary hospital: observational study

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: ZA Suleiman --- Department of Anaesthesia, Nigeria IK Kolawole --- Department of Anaesthesia, Nigeria BA Ahmed --- Department of Surgery, Nigeria OM Babalola --- Department of Surgery, Nigeria GH Ibraheem --- Department of Surgery, Nigeria

Background: Lumbosacral radicular pain is a common cause of chronic low back pain. Despite published reports of effectiveness of transforaminal epidural steroid for lumbosacral radicular pain, it is underutilised in many tertiary hospitals in sub-Saharan Africa. This study assessed the...

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Typhoid ileal perforation in a semi-urban tertiary health institution in north-eastern Nigeria

Item type: Journal Article • Journal: South African Family Practice • Authors: BA Grema --- Family Medicine Department, Aminu Kano Teaching Hospital Kano, Nigeria I Aliyu --- Paediatric Department, Aminu Kano Teaching Hospital, Nigeria GC Michael --- Family Medicine Department, Aminu Kano Teaching Hospital Kano, Nigeria A Musa --- Surgery Department, Federal Medical Center Nguru, Nigeria AG Fikin --- Family Medicine Department, Federal Medical Center Nguru, Nigeria BM Abubakar --- Surgery Department, Federal Medical Center Nguru, Nigeria S Olusegun --- Surgery Department, Federal Medical Center Nguru, Nigeria

Introduction: Typhoid ileal perforation is a very serious complication of typhoid fever and remains a significant surgical problem in developing countries like Nigeria, where it is associated with higher mortality and morbidity, due to lack of adequate clean drinking water,...

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Invertebrate drift densities in the Njoro and Kamweti Rivers in the Kenyan highlands that differ in the level of anthropogenic disturbances

Item type: Journal Article • Journal: African Zoology • Authors: Charles M M’Erimba --- Department of Biological Sciences, Kenya John G Mbaka --- Department of Land and Water Management, Kenya Priscilla W Mureithi --- Department of Biological Sciences, Kenya Ken O Ouma --- Department of Biological Sciences, Kenya

Invertebrate drift is one of several fundamental ecological processes in streams. However, little is known about the dynamics of invertebrate drift in Kenyan streams. In this study, we assessed invertebrate drift in two rivers, i.e. Njoro and Kamweti, that differ...

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Plumage development and moult in captive Black-bellied Sandgrouse Pterocles orientalis: age and sex variations

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mohamed Aourir --- Department of Biology, Faculty of Sciences, Morocco Mohammed Znari --- Department of Biology, Laboratory «Biodiversity and Ecosystem Dynamics», Faculty of Sciences – Semlalia, Morocco Mohamed Radi --- Department of Biology, Laboratory «Biodiversity and Ecosystem Dynamics», Faculty of Sciences – Semlalia, Morocco

The sandgrouse, family Pteroclididae, are a group of birds adapted to open, arid habitats and powerful fliers but information on their plumage development and moult is scarce. In this study, the annual cycle of body plumage development, sequence and duration...

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Emergency Centre-based paediatric procedural sedation: current practice and challenges in Cape Town

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Burger --- Department of Anaesthesia and Perioperative Medicine, South Africa PW Hodkinson --- Department of Surgery, Division of Emergency Medicine, South Africa LA Wallis --- Joint Division of Emergency Medicine, South Africa

Background: The aims and objectives of this survey of the current practice of doctors working in Emergency Centres (ECs) in the Cape Town metropole was to assess clinical practice and attempt to identify obstacles to the practice of paediatric procedural...

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Effects of density and structure on production in the communal forests of the Mexican Sierra Madre Occidental

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: José J Corral-Rivas --- Instituto de Silvicultura e Industria de la Madera, Universidad Juárez del Estado de Durango, Mexico María Socorro González-Elizondo --- Instituto Politécnico Nacional, Mexico José E Lujan-Soto --- Instituto Tecnológico de El Salto, Mexico Klaus von Gadow --- Burkhardt Institute, Göttingen University, Germany

The Sierra Madre Occidental in the Mexican State of Durango, is home to about 5 million ha of species-rich forest ecosystems. Local communities depend on these forests for their livelihood. The preservation of the species richness and productivity of this...

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The isimodeni style: traditional beadwork, Zulu trinket or South African sartorial tradition on Durban’s Golden Mile?

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Rowan C. Gatfield --- Department of Graphic Design, United Kingdom

Beadwork is a well-documented aspect of the socio-political culture of isiZulu-speaking groupings in Southern Africa. Whilst scholarship on beadwork deals largely with the denotative and connotative value it offers wearers, this article’s contribution relates both to its commodification and apolitical...

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Exploring procedural justice and police legitimacy in South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology, South Africa

Perceptions of legitimacy are at the foundation of public mandates underlying criminal justice institutions, their legal authority, and public cooperation. This study explored perceptions of South African policing by members of a historically disadvantaged community, in terms of the procedural...

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Carbon stock in the community managed Sal (Shorea robusta) forests of Dadeldhura district, western Nepal

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Suresh Prashad Bhatta --- , Nepal Anjana Devkota --- , Nepal

Four community-managed Sal forests in Dadeldhura district of Nepal were selected for the assessment of carbon stock. The stratified random sampling method was applied to measure the field data from 105 sample plots of 100 m2. The carbon stock of...

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Procedural justice, police legitimacy, and performance: Perspectives of South African students

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Paul Oluwatosin Bello --- , South Africa Thabiso Donald Matshaba --- , South Africa

This study explored notions of procedural justice and police legitimacy among university students in South Africa. We surveyed 482 South African university students (female =77.6%; black = 91.7%; mean age = 23.0 years, SD = 1.05 years) on the effect...

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Improvements in forecasting insurance stock excess returns: Comparing the investor sentiment endurance index with the CAPM and Fama-French models

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Ling T. He --- , Haibo Yao --- , K. Michael Casey --- ,

This study applies the sentiment endurance (SE) index developed by He (2012) to forecast excess returns of insurance stocks. With the exception of the 12-month rolling forecasts of the Fama-French three-factor model (FF), forecasts of the SE model persistently outperform...

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Revenue recognition practices in South Africa: An analysis of the decision usefulness of IFRS 15 disclosures

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: D. Coetsee --- , South Africa A. Mohammadali-Haji --- , South Africa M. van Wyk --- , South Africa

The paper analyses the first-time adoption of IFRS 15 and reports on the appropriateness, rigour and decision usefulness of revenue disclosure practices in South Africa. The decision usefulness is assessed by reviewing the nature, amount, timing and uncertainty of revenue...

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Investigation of green-glued laminated timber from the Congo Basin: durability, mechanical strength and variability trends of the bondlines

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: René Oum Lissouck --- University of Yaoundé I, Cameroon Rachel Raïssa Ngono Mvondo --- Institute of Wood Technology, University of Yaoundé I, Cameroon François René Ateba --- Institute of Wood Technology, University of Yaoundé I, Cameroon Regis Pommier --- University of Bordeaux, France

The development of glulam may give complementary, added-value to an important part of the timber production in the Congo Basin. Nevertheless, the high humidity in which these timbers operate may cause problems such as cracks and severe deformations if they...

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Modelling level, trend and geographical variations in stigma and discrimination against people living with HIV/AIDS in Nigeria

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Samson B Adebayo --- Monitoring and Evaluation Division, Society for Family Health, Richard Fakolade [B0002] Jennifer Anyanti --- Society for Family Health, Bright Ekweremadu --- Society for Family Health, Olaronke Ladipo --- Society for Family Health, Augustine Ankomah --- Applied Population Research, University of Exeter, UK

People living with HIV and AIDS (PLHA) often face stigma and discrimination. Stigma is a powerful tool for social control and PLHA are to varying degrees stigmatised against. Consequences of stigma and discrimination against PLHA may result in low turn-out...

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Correlates of concurrency among young people in Carletonville, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Chris Kenyon --- , , Belgium Robert Colebunders --- , Belgium

There is still a considerable debate about whether socioeconomic or cultural factors underpin the high prevalence of sexual partner concurrency in parts of Southern and Eastern Africa. We analyzed the patterning and correlates of concurrency in a population-based sample of...

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Contemporary HIV/AIDS research: Insights from knowledge management theory

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Chris William Callaghan --- , , South Africa

Knowledge management as a field is concerned with the management of knowledge, including the management of knowledge in research processes. Knowledge management theory has the potential to support research into problems such as HIV, antibiotic resistance and others, particularly in...

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A demonstration of the value of recapture data for informing moult phenology models for avian species with imperfect moult data

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Philipp H Boersch-Supan --- , United Kingdom Alan Tristram Kenneth Lee --- University of Cape Town, South Africa Hans-Dieter Oschadleus --- University of KwaZulu-Natal, South Africa

The Underhill–Zucchini model has revolutionised the study of moult in the context of birds’ annual cycles, but, as for all statistical models, inferences are vulnerable to violations of model assumptions. In particular, the standard Underhill–Zucchini models for moult phenology are...

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The primary moult of adult Red-headed Finches Amadina erythrocephala

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: T Scott --- University of Cape Town, South Africa JMH Raijmakers --- , South Africa LG Underhill --- University of Cape Town, South Africa

Little is known about the biology of the Red-headed Finch Amadina erythrocephala. This study investigates its primary moult, the first aspect of its life history to be looked at in depth. Additionally, we used a modified Cook’s distance algorithm to...

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The interconnection between the global and the local: case study of the indigenous Baka community of Nomedjoh, Cameroon

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Richard Atimniraye Nyelade --- University of Ottawa, Canada

The impact of globalisation on local communities is a widely debated topic in sociology and anthropology. This article explores the dynamics and statics of local communities in the context of globalisation using the concepts of deterritorialisation and imagined community. The...

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The beast that never forgot? Baboon conservation and the role of multispecies history

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sandra Swart --- Stellenbosch University, South Africa

History and culture were long seen as definitionally human. As other distinctive traits that once defined our species as unique disappeared, at least we still had those two. But are we really the only species shaped by our pasts and...

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Long-term interannual temperature variability across the KwaZulu-Natal Bight as a technique for monitoring the complex uThukela Marine Protected Area, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: N Ramsarup --- University of Cape Town, South Africa T Morris --- , South Africa J Hermes --- University of Cape Town, South Africa M Dicken --- Institution for Coastal and Marine Research, Ocean Sciences Campus, Nelson Mandela University, South Africa

The uThukela Marine Protected Area (MPA), situated on the continental shelf of the KwaZulu-Natal (KZN) Bight on the northeastern coast of South Africa, has been identified as a vital ecological region. Knowledge of the oceanographic dynamics in the region is...

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Socio-ecological change in bait fisheries for the common sandprawn Kraussillichirus kraussi in Durban Harbour, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Chetty --- Oceanographic Research Institute (ORI), South Africa E Steyn --- Oceanographic Research Institute (ORI), South Africa JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa

Bait fishing for the common sandprawn Kraussillichirus kraussi in Durban Harbour, on the east coast of South Africa, has a history going back to the early 20th century and has been influenced by port development and political changes over time...

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Preliminary dietary recommendations for adult spinal cord-injured endurance hand cyclists

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Reno Eron Gordon --- Sefako Makgatho Health Sciences University, South Africa Sunita Potgieter --- Stellenbosch University, South Africa Lize Havemann-Nel --- Centre of Excellence for Nutrition (CEN), North-West University, South Africa

Sports nutrition recommendations for able-bodied athletes are well established. However, sports nutrition recommendations for para-athletes are still developing. Spinal cord-injured (SCI) hand cyclists face unique physiological and nutrition-related challenges compared with able-bodied athletes, complicating the extrapolation of recommendations. This paper...

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Viability of shortened canola production systems in a winter rainfall region of South Africa based on eleven years of field data

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: JA Strauss --- , South Africa L Nowers --- , South Africa M Booyse --- Agricultural Research Council, Biometry, South Africa M Van der Rijst --- Agricultural Research Council, Biometry, South Africa

Crop rotation is a key component of conservation agriculture, known to enhance yields and break the cycles of pests and diseases. In the Western Cape, South Africa, canola has become an increasingly important cash crop, with producers considering shorter rotation...

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