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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Flower initiation and development of Protea cv. Carnival by Hoffman, Eleanor Wilhelmina

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How air temperature affects flight initiation distance in arid-zone birds by Pistorius, Penny

“…This study investigated how changes in air temperature affect arid-zone birds' response to predators. The flight initiation distances (FID), i.e. the distance from a predator when the prey initiates escape, of eight bird species in the Kalahari were measured over a range of air temperatures during October and November 2015. …”
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Inter and intra-laboratory variability of CD4 : a pragmatic analysis

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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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A consensus on reporting variables for terrestrial helicopter search and rescue operations in South Africa through a Delphi study by Theunissen, Simone Stefanie, Park-Ross, Jocelyn Frances

“…RESULTS: A panel of twenty-eight participants agreed to partake in the study, and 16 (57%) completed all three rounds. …”
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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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Die invloed van 'n motories fundamentele vaardigheidsprogram op die fisieke en kognitiewe ontwikkeling van die graad 1 kind (Afrikaans)

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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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Modeling the effects of environmental and ecological processes on the transport, mortality, growth and distribution of early stages of Cape Anchovy (Engraulis Encrasicolus) in the... by Parada, Carolina E

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Photometric techniques for exoplanet detection: the construction and deployment of the KELT-South telescope by Kuhn, Rudolf Bruwer

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

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The effect of firm performance and governance indicators on firm's credit rating in the MENA region by Elteir, Marwa Mohamed

“…This sample include 2463 firms during eight years (2006-2013). The results of the initial model show that debt ratio, payout ratio, return on assets, rule of law and market to book ratio are significant.…”
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The role of personality, emotional intelligence and spiritual intelligence among leaders in corporate South Africa

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Studies of the laser thermal probe in cardiovascular disease by Rosenthal, Eric

“…The initial use of optical fibres to transmit laser energy intravascularly was accompanied by a high rate of perforations and the production of inadequate vascular channels when used for recanalisation. …”
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The further development and evaluation of a generic individual non-managerial performance measure by Botes, Philip Jacobus

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