• Untangle the structural and random zeros in statistical modelings 

  Tang, W.; He, H.; Wang, W.J.; Chen, Ding-Geng (Din) (Taylor and Francis, 2018)

  Count data with structural zeros are common in public health applications. There are considerable researches focusing on zero-inflated models such as zero-inflated Poisson (ZIP) and zero-inflated Negative Binomial (ZINB) ...
• A double generally weighted moving average exceedance control chart 

  Masoumi Karakani, Hossein; Human, Schalk William; Van Niekerk, Janet (Wiley, 2018-10)

  Since the inception of control charts by W. A. Shewhart in the 1920s, they have been increasingly applied in various fields. The recent literature witnessed the development of a number of nonparametric (distribution‐free) ...
• Robust Bayesian nonlinear mixed‐effects modeling of time to positivity in tuberculosis trials 

  Burger, Divan Aristo; Schall, Robert; Chen, Ding-Geng (Din) (Wiley, 2018-09)

  Early phase 2 tuberculosis (TB) trials are conducted to characterize the early bactericidal activity (EBA) of anti‐TB drugs. The EBA of anti‐TB drugs has conventionally been calculated as the rate of decline in colony ...
• Weighted distributions of eigenvalues 

  Arashi, Mohammad; Bekker, Andriette, 1958-; Van Niekerk, Janet (Elsevier, 2019-01)

  In this article, the weighted version of a probability density function is considered as a mapping of the original distribution. Generally, the properties of the distribution of a random matrix and the distributions of its ...
• Bootstrap testing for first-order stationarity on irregular windows in spatial point patterns 

  Kraamwinkel, Christine; Fabris-Rotelli, Inger Nicolette; Stein, Alfred (Elsevier, 2018-08)

  Kernel smoothing is commonly used in spatial point patterns to construct intensity plots. Kernels allow for visually and subjectively inferring on first-order stationarity. Formal objective tests exist for testing first-order ...
• Inhomogeneous spatial modelling of DPT pulses for marine images 

  Fabris-Rotelli, Inger Nicolette; Stein, Alfred (Elsevier, 2018-08)

  The Discrete Pulse Transform (DPT) is a nonlinear decomposition of a signal and extracts the structures in a signal at discrete scale levels. This study models the image structure extracted using the DPT as connected ...
• Some theoretical comments regarding the run-length properties of the synthetic and runs-rules monitoring schemes – Part 2 : Steady-state 

  Shongwe, Sandile Charles; Graham, Marien Alet (Taylor and Francis, 2018)

  In this paper, the long term (also known as the steady-state mode) run-length theoretical properties of the four different types of synthetic and runs-rules monitoring schemes, that were empirically analysed in part 1 of ...
• Some theoretical comments regarding the run-length properties of the synthetic and runs-rules monitoring schemes – Part 1 : Zero-state 

  Shongwe, Sandile Charles; Graham, Marien Alet (Taylor and Francis, 2018)

  In this paper, we discuss the short-term (also known as zero-state mode) run-length theoretical properties of the four different types of synthetic and runs-rules monitoring schemes that were empirically analyzed in another ...
• Linking trust and collaboration in project teams to project management success 

  Bond-Barnard, T.J. (Taryn Jane); Fletcher, Lizelle; Steyn, Herman (Emerald, 2018)

  PURPOSE : The purpose of this paper is to emphasise the importance of high levels of trust and collaboration for increasing the likelihood of project management (PM) success. However, the link between these three constructs ...
• The use of negative pressure wave treatment in athlete recovery 

  Jansen van Rensburg, Audrey; Janse van Rensburg, Dina Christina; Van Buuren, H E.; Grant, C.C. (Catharina Cornelia); Fletcher, Lizelle (Health and Medical Publishing Group, 2017)

  BACKGROUND : Athletes need to recover fully to maximise performance in competitive sport. Athletes who replenish more quickly and more efficiently are able to train harder and more intensely. Elite athletes subjectively ...
• Oral, maxillofacial and dental diseases in captive cheetahs (Acinonyx jubatus) 

  Steenkamp, Gerhardus; Boy, S.C.; Van Staden, Paul Jacobus; Bester, Marthan Nieuwoudt (Elsevier, 2018-01)

  Descriptions of several oral, maxillofacial and dental conditions/diseases exist for a variety of captive large felids, but little is reported on the pathology of free roaming large felids. Apart from focal palatine erosions ...
• The injury and illness profile of male and female participants in a 94.7 km cycle race : a cross-sectional study 

  Breedt, Mia; Janse van Rensburg, Dina Christina; Fletcher, Lizelle; Grant, C.C. (Catharina Cornelia); Schwellnus, Martin Peter (Lippincott Williams and Wilkins, 2018)

  OBJECTIVE : To describe the incidence and patterns of injury and illness of male and female participants during a 94.7 km distance cycling event. DESIGN : Descriptive study. SETTING : Momentum 94.7 Cycle Challenge 2014. ...
• Learner-to-teacher bullying as a potential factor influencing teachers’ mental health 

  Woudstra, Marit Helen; Janse van Rensburg, Estie; Visser, M.J. (Maretha Johanna); Jordaan, J.C. (Joyce) (Education Association of South Africa, 2018-02)

  Learner-to-teacher bullying is a focus area that has not been widely researched. The current research, underpinned by the ecosystemic paradigm, examined the proportion of teachers who reported exposure to bullying by ...
• Advances in Wishart type modeling for channel capacity 

  Ferreira, J.T. (Johannes); Bekker, Andriette, 1958-; Arashi, Mohammad (National Statistical Institute of Portugal, 2018)

  This paper paves the way when the assumption of normality is challenged within the wireless communications systems arena. Innovative results pertaining to the distributions of quadratic forms and their associated eigenvalue ...
• The prevalence, risk factors predicting injury and the severity of injuries sustained during competition in professional mixed martial arts in Africa 

  Venter, Santa-Marie; Janse van Rensburg, Dina Christina; Fletcher, Lizelle; Grant, C.C. (Catharina Cornelia) (Health and Medical Publishing Group, 2017)

  BACKGROUND : Professional mixed martial arts (MMA) has gained international popularity. No African-based studies have reported the prevalence or severity of injuries, risk factors associated with injuries or return-to-play ...
• The effect of methylphenidate-OROS® on the narrative ability of children with attention-deficit hyperactivity disorder 

  Rausch, Tessa L.; Kendall, D.L. (Diane); Kover, Sara T.; Louw, Elizabeth M.; Zsilavecz, Ursula Louise; Van der Merwe, Anita (AOSIS OpenJournals, 2017-02-27)

  BACKGROUND AND OBJECTIVE : Children with attention-deficit hyperactivity disorder (ADHD) experience difficulty with expressive language, including form (e.g. grammatical construction) and content (e.g. coherence). The ...
• Email communication in project management : a bane or a blessing? 

  Smit, Marius C.; Bond-Barnard, T.J. (Taryn Jane); Steyn, Herman; Fabris-Rotelli, Inger Nicolette (AOSIS, 2017-08-11)

  BACKGROUND : Project success used to be measured solely in terms of efficiency metrics such as scope, cost and time; however, there are proposals that more attention should be paid to process-related performance factors ...
• Inheritance of phenotypic traits in the progeny of a Ceratocystis interspecific cross 

  Fourie, Arista; Wingfield, Michael J.; Wingfield, Brenda D.; Van der Nest, Magrieta Aletta; Loots, Mattheus Theodor; Barnes, Irene (Elsevier, 2018-07)

  Ceratocystis fimbriata is a fungal plant pathogen that causes black rot on Ipomoea batatas. Based on inoculation studies on numerous tree species, the pathogen is known to be host specific. The closely related species, ...
• A comparative study of the psychological problems of HIV-infected and HIV-uninfected children in a South African sample 

  Visser, M.J. (Maretha Johanna); Hecker, H.E.; Jordaan, J.C. (Joyce) (Taylor and Francis, 2018-01)

  According to research children living with HIV experience elevated levels of depression, anxiety, ADHD and disruptive behavioural disorders. Although South Africa’s paediatric population that is infected with the human ...
• Identifying factors associated with the discharge of male State patients from Weskoppies Hospital 

  Prinsloo, Riaan G.; Swanepoel, Andre; Lippi, Gian (AOSIS, 2017-12-04)

  Background: Designated psychiatric facilities are responsible for the care, treatment and reintegration of State patients. The necessary long-term care places a considerable strain on health-care resources. Resource use ...

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