A variance shift model for outlier detection and estimation in linear and linear mixed models by Gumedze, Freedom Nkhululeko

“…Likelihood ratio and score test statistics are developed as objective measures for the variance shift estimates. The proposed test statistics initially assume balanced longitudinal data with a Gaussian distributed response variable. …”
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Vulnerability of selected native and invasive woody species to streamflow variability in Western Cape fynbos riparian ecotones by Crous, Casparus Johannes

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Three essays on economic impact assessment of the use of the Heavily Indebted Poor Countries (HIPC) initiative for poverty reduction in Ghana by Osei-Fosu, Anthony Kofi

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Influence of ecosystem variability on the demography and reproductive performance of two Eudyptes penguins, Macaroni and Eastern Rockhopper Penguins, at sub-Antarctic Marion Island... by Dakwa, Farisayi E

“…There was inter-annual variation in pre-breeding variables (arrival dates and mass on arrival) and breeding variables (breeding success and fledging mass) in both penguins which could indicate variability in prey availability and climatic conditions across the breeding seasons from 1994–2019. …”
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Shrinkage estimation in ARMA-GARCH regression models with an application in Bitcoin returns

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Impact of creating shared value concept on the commercial forestry sector in South Africa

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Cape Town residential patterns : an examination of natural processes in housing and of the distortion of these natural patterns, all with special reference to Cape Town by Ehlers, Frederick Greeff

“…The principles which were the initial concern of the study originated in the Life Sciences (*2) and the Human Sciences (*3). …”
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Career optimisation of financial technical experts

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Workplace internet leisure browsing, recovery experiences and occupational well-being by Stander, Xander

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Wasps (Hymenoptera: Chalcidoidea) associated with galls in seed-capsules of Eucalyptus camaldulensis (Myrtaceae) in South Africa : species composition, trophic relationships and ef... by Klein, Hildegard

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Plant ecology of the Namaqualand Strandveld : community structure and dynamics in a winter-rainfall desert by Eccles, Neil Stuart

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When peacekeeping works: a comparative study of the effectiveness of hybrid peacekeeping in Liberia, Somalia, Sudan and the Ivory Coast by Van As, Stepheny

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Tencent Holdings Limited : an IPO case study by De Wet, Dario

“…The purpose of this case study is to empirically investigate the phenomenon of initial public offerings (IPOs) by applying it to Tencent Holdings Limited (Tencent). …”
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From barricades to boardroom : transition from struggle leadership to government and business

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Southern Africa and Agro-processing: Investigating the state of agricultural RVCs and the role of South African food retailers in regional supplier development by Gorven, Ruth

“…The Nando's Peri Farms Initiative provides an example of an effective supplier development programme, balancing business with socially oriented outcomes. …”
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Role of cell membrane integrity and oxidation stress in development of external browning of white seedless table grapes (Vitis vinifera L.) by Botes, Wilhelmina Jacoba

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Cash flow optimization for construction engineering portfolios by Ali, Gasser Galal

“…Optimization of those variables, within scheduling constraints results in a near-optimum NPV. …”
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The Prevalence of Traumatic Brain Injury and an Investigation of Behavioural, Emotional and Executive Functioning in a Sample of Male Young Offenders by Steenkamp, Nina Simone

“…In young offenders, particularly, TBI is significantly more prevalent than in the general youth population. This association might be explained by the fact that key TBI sequelae (e.g., aggression, behavioural and cognitive impulsivity, emotional dysregulation) can place individuals at risk for criminal offending. …”
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The effects of race and assertiveness on active and passive influencing : a four year follow-up by Van der Westhuizen, Varenka

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