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. …”
Get full text

Vulnerability of selected native and invasive woody species to streamflow variability in Western Cape fynbos riparian ecotones by Crous, Casparus Johannes

Get full text

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

Get full text

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. …”
Get full text

Shrinkage estimation in ARMA-GARCH regression models with an application in Bitcoin returns

Get full text

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

Get full text

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

Get full text

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

Get full text

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

Get full text

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

“…Optimization of those variables, within scheduling constraints results in a near-optimum NPV. …”
Get full text
Get full text

The effects of race and assertiveness on active and passive influencing : a four year follow-up by Van der Westhuizen, Varenka

Get full text

Pharmacogenomics of warfarin: comprehensive evaluation of important warfarin genomic response factors by Ndadza, Arinao

“…Warfarin is initiated clinically at 5mg/day then subsequent doses are adjusted accordingly to achieve a stable targeted INR. …”
Get full text

Common mental disorders and barriers to adherence to HIV medications among emerging adults living with HIV using healthcare services in Harare by Saruchera, Emily Wendy

“…Assess the relationship between demographic variables, HIV related variables, Substance Use Disorders (SUD) and total BARTA scores. …”
Get full text

The effect of parental involvement on Grade 4 learner literacy : evidence from prePIRLS 2011

Get full text

Temperature dependence of damage ranges in ion implanted metals

Get full text

Understanding the acceptance and use of open source geospatial software – the case of QGIS in South Africa

Get full text

The relationship between knowledge creation dimensions and the entrepreneurial performance of a local government institution in South Africa

Get full text

Site selection for the Small-Scale Aquaculture Farming Systems in the Western Cape : a GIS application by Steer, Lorn Adam

Get full text

Testing alternative methods for forecasting maize prices in South Africa

Get full text
Get full text