• Defensive coping facilitated a smaller cortisol-to-estradiol ratio and a higher hypertension risk: the SABPA study 

  Malan, Leoné; De Kock, Andrea; Hamer, Mark; Cockeran, Marike; Malan, Nicolaas Theodor (Taylor & Francis, 2018)

  Objectives: Taxing psychosocial stress and defensive coping have been associated with hypoactivity in cortisol, a vasoconstrictive agent. Estradiol has vasodilatory properties with cardio- and neuroprotective effects. It ...
• Dissipative particle dynamics investigation of the transport of salicylic acid through a simulated in vitro skin permeation model 

  Otto, Daniel P.; Combrinck, Johann; Otto, Anja; Tiedt, Louwrens R.; De Villiers, Melgardt M. (MDPI, 2018)

  Permeation models are often used to determine diffusion properties of a drug through a membrane as it is released from a delivery system. In order to circumvent problematic in vivo studies, diffusion studies can be ...
• Sublethal effects of ionic and nanogold on the nematode Caenorhabditis elegans 

  Bosch, Suanne; Botha, Tarryn Lee; Jordaan, Anine; Maboeta, Mark; Wepener, Victor (Hindawi, 2018)

  Te nematode Caenorhabditis elegans is used as an ecotoxicological model species in both aqueous medium and solid substrates. It is easy and of low cost to maintain in the laboratory and it produces hundreds of ofspring ...
• Variation of indoor particulate matter concentrations and association with indoor/outdoor temperature: a case study in rural Limpopo, South Africa 

  Kapwata, Thandi; Language, Brigitte; Piketh, Stuart; Wright, Caradee Y. (MDPI, 2018)

  There is still a pressing concern regarding the causes of poor indoor air quality and the consequent effects on health, because people spend a considerable amount of time indoors. Information about seasonal variation and ...
• Two new species of Hepatozoon (Apicomplexa: Hepatozoidae) parasitising species of Philothamnus (Ophidia: Colubridae) from South Africa 

  Cook, Courtney Antonia; Netherlands, Edward Charles; Smit, Nico Jacobus; Van As, Johann (Institute of Parasitology, Biology Centre CAS, 2018)

  To date, only a few species of Hepatozoon Miller, 1908 have been described from amphibians and reptiles of South Africa, including two species from anuran hosts, three from saurians, one from chelonians, and two from ...
• Senecio conrathii N.E.Br. (Asteraceae), a new hyperaccumulator of nickel from serpentinite outcrops of the Barberton Greenstone Belt, South Africa 

  Siebert, Stefan John; Schutte, Nadine Carol; Bester, Stoffel Pieter; Komape, Dennis Mmakgabo; Rajakaruna, Nishanta (ESJ, 2018)

  Five nickel hyperaccumulators belonging to the Asteraceae are known from ultramafic outcrops in South Africa. Phytoremediation applications of the known hyperaccumulators in the Asteraceae, such as the indigenous Berkheya ...
• The spatial ecology of adult Labeobarbus marequensis and their response to flow and habitat variability in the Crocodile River, Kruger National Park 

  Burnett, M.J.; Wepener, V.; O'Brien, G.C.; Pienaar, D. (Taylor & Francis, 2018)

  The spatial movement of Labeobarbus marequensis was evaluated by attaching radio transmitters to 16 adult fish and tracking them from August 2009 to July 2012 in the Crocodile River, Kruger National Park, South Africa. Monthly ...
• Apparent kleptoparasitism in fish: parasitic gnathiid isopods 

  Shodipo, Mary O.; Welicky, Rachel L.; Sikkel, Paul C.; Gomez, Rick Dane C. (Springer, 2019)

  Gnathiid isopods are common external parasites/micropredators that feed on the blood of marine fishes. During the course of processing samples of gnathiid isopods collected from light traps in the central Philippines, we ...
• Complete genome sequence of Lactobacillus reuteri PNW1, a promising probiotic candidate 

  Alayande, Kazeem A.; Ateba, Collins N.; Aiyegoro, Olayinka A. (ASM, 2019)

  This study reports the whole-genome sequence of Lactobacillus reuteri PNW1 isolated from gastrointestinal tracts of weaned piglets of the indigenous South African Windsnyer pig breed. A total of 5.2 GB data comprising ...
• Parasites of cartilaginous fishes (Chondrichthyes) in South Africa - a neglected field of marine science 

  Schaeffner, Bjoern C.; Smit, Nico J. (Institute of Parasitology, Biology Centre CAS, 2019)

  Southern Africa is considered one of the world’s ‘hotspots’ for the diversity of cartilaginous fishes (Chondrichthyes), with currently 204 reported species. Although numerous literature records and treatises on chondrichthyan ...
• Catalytic oxidation of alcohols with novel non-heme N4-tetradentate manganese(II) complexes 

  Vermaak, Vincent; Young, Desmond A.; Swarts, Andrew J. (RSC, 2018)

  We report the preparation and characterisation of a series of novel non-heme N4-tetradentate Mn(OTf)2 complexes of the type, [(L)MnOTf2], where L = R,R and S,S enantiomers of BPMCN, its 6-methyl and 6-bromo derivatives as ...
• Abalone growth and associated aspects: now from a metabolic perspective 

  Venter, Leonie; Loots, Du Toit; Jansen van Rensburg, Peet; Lindeque, Jeremie Zander; Vosloo, Andre (Wiley, 2018)

  Worldwide, there are approximately 100 Haliotis species, more commonly known as abalone or ‘Paua’ in New Zealand, ‘Venus's‐ears’ in Greece, ‘Awabi’ in Japan, ‘Perlemoen’ in South Africa and ‘Ormers’ in Europe. Regardless ...
• Some physical and chemical characteristics of calcium lignosulphonate-bound coal fines 

  Strydom, C.A.; Mthombo, T.S.; Bunt, J.R.; Neomagus, H.W.J.P. (SAIMM, 2018)

  Low-cost calcium lignosulphonate (CL), which is a byproduct of theWOOD pulping industry, was investigated as a potential binder during laboratoryscale pelletization of inertinite-rich high-ash coal fines from the ...
• Metabolomics of Ndufs4−/− skeletal muscle: adaptive mechanisms converge at the ubiquinone-cycle 

  Terburgh, Karin; Lindeque, Zander; Mason, Shayne; Van der Westhuizen, Francois; Louw, Roan (Elsevier, 2019)

  Leigh syndrome is one of the most common childhood-onset neurometabolic disorders resulting from a primary oxidative phosphorylation dysfunction and affecting mostly brain tissues. Ndufs4−/− mice have been widely used to ...
• Comparing mathematics knowledge of first-year students from three different school curricula 

  Froneman, Sonica; Hitge, Mariette (ASSAf, 2019)

  Mathematics forms an integral part in the training of scientists and engineers. In recent history the South African school system has experienced several changes in school curricula. In 1994 the traditional knowledge based ...
• Investigating the feasibility of automatic assessment of programming tasks 

  Liebenberg, Janet; Pieterse, Vreda (Informing Science Institute, 2018)

  Aim/Purpose The aims of this study were to investigate the feasibility of automatic assessment of programming tasks and to compare manual assessment with automatic assessment in terms of the effect of the different ...
• Effect of ozone on photosynthesis and seed yield of sensitive (S156) and resistant (R123) Phaseolus VulgarisL. genotypes in open-top chambers 

  Scheepers, Cornelius C.W.; Krüger, Gert H.J.; Strasser, Reto J. (Springer, 2013)

  Rising tropospheric ozone (O3) concentrations have been identified as a significant threat to crop production. In the present study two snap bean (Phaseolus vulgaris L.) genotypes with known difference in sensitivity to ...
• SO2-drought interaction on crop yield, photosynthesis and symbiotic nitrogen fixation in soybean (Glycine max) 

  Heyneke, E.; Strauss, A.J.; Van Heerden, P.D.R.; Krüger, G.H.J.; Strasser, R.J. (Springer, 2013)

  South Africa has an energy-intensive economy, resulting in substantial SO2 pollution. Well watered and drought stressed soybean (Glycine max) were exposed to SO2 in open-top chambers to study the physiology of SO2 injury ...
• The undervaluation, but extreme importance, of social sustainability in South Africa 

  Cillies, Elizelle Juanee (Springer, 2018)

  This book tackles the challenges posed by accelerating urbanization, and demystifies Social Sustainability, the least understood of all the different areas of sustainable development. The volume’s twin focus on these ...
• Detection of large-scale Ly α absorbers at large angles to the radio axis of high-redshift radio galaxies using SOAR 

  Silva, M.; Lagos, P.; Humphrey, A.; Guimarâes, R.; Scott, T. (Oxford Univ Press, 2018)

  We present an investigation of the properties of the extended Ly α halo and the large-scale H I absorbing structures associated with five high-redshift radio galaxies at z > 2, using the Goodman long-slit spectrograph ...

View more