Faculty of Natural Sciences@PUK
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Description of Globodera sandveldensis n. sp. (Nematoda: Heteroderidae) from South Africa
(Brill, 2017)A new cyst nematode, herein described as Globodera sandveldensis n. sp., was found in the Sandveld, Western Cape Province, South Africa. As the host plant of G. sandveldensis n. sp. is currently unknown, the species is ... -
Spatio-temporal variation in phytoplankton communities along a salinity and pH gradient in a tropical estuary (Brunei, Borneo, South East Asia)
(International Society for Tropical Ecology, 2017)Tropical estuaries often have a low buffering capacity and may experience acidification, both naturally through microbial degradation and run-off from acid sulphate soils (ASS), or from various anthropogenic sources. ... -
Fetal metabolic stress disrupts immune homeostasis and induces proinflammatory responses in human immunodeficiency virus type 1- and combination antiretroviral therapy-exposed infants
(Oxford Univ Press, 2017)Increased morbidity and fetal growth restriction are reported in uninfected children born to human immunodeficiency virus type 1 (HIV-1)–infected women treated with antiretroviral (ARV) therapy. Viruses and/or pharmacological ... -
Associations between dietary salt, potassium and blood pressure in South African adults: WHO SAGE Wave 2 Salt & Tobacco
(Elsevier, 2017)Background & aims In June 2016, South Africa implemented legislation mandating maximum sodium levels in a range of processed foods with a goal of reducing population salt intake and disease burden from hypertension. Our ... -
Life stage dependent responses to desiccation risk in the annual killifish Nothobranchius wattersi
(Wiley, 2017)To assess whether the annual killifish Nothobranchius wattersi responds plastically to a desiccation risk and whether this response is life stage dependent, life-history traits such as maturation time, fecundity and life ... -
Effect of water of crystallization on the dissolution efficiency of molten zinc chloride hydrate salts during the pre-treatment of corncob biomass
(Wiley, 2017)BACKGROUND Agro-wastes albeit abundant and cheap, require pre-treatment steps tailored to overcome the characteristic recalcitrance of lignocellulosic biomass. In this study, zinc chloride hydrate salts were studied for ... -
A bis(pyridyl)-N-alkylamine/Cu(I) catalyst system for aerobic alcohol oxidation
(RSC, 2017)Herein a bis(pyridyl)-N-alkylamine/CuI/TEMPO/NMI catalyst system is reported for aerobic oxidation of a variety of primary alcohols to the corresponding aldehydes using readily available reagents, at room temperature and ... -
An amplified description for the elusive Cordylogyne argillicola (Apocynaceae-Asclepiadoideae) from Namibia
(Magnolia Press, 2017)Owing to the brief description, and in the absence of any known type collection of Cordylogyne argillicola, the application of the name remained unresolved for over a century. Type material that was recently discovered in ... -
Revision of the family Carabodidae (Acari: Oribatida) V (Fifth part). Redescription of Congocepheus latilamellatus Mahunka 1984, with complementary studies of C. ornatus, Mahunka 1983. Descriptions of Tanzaniacepheus gen. nov. and Zimbabwecepheus gen. nov.
(Magnolia Press, 2017)Redescription of Congocepheus latilamellatus, with complementary studies of Congocepheus ornatus. Congocepheus latilamellatus is a senior synonym of C. ornatus. Two new genera, Tanzaniacepheus and Zimbabwecepheus are ... -
Enhancing photocatalytic activity for hydrogen production and pollutant degradation by modifying tetragonal ZrO2 with monolayers slab surface of BiVO4, Ag3PO4, SrTiO3 and WO3: a first-principles study
(Elsevier, 2017)Semiconductor-based photocatalysis has received increasing attention in energy storage and environmental remediation process due to the abundant solar energy. For this purpose, heterostructures of ZrO2 coupled with BiVO4, ... -
The orbit of the gamma-ray binary 1FGL J1018.6- 5856
(IOP Publishing, 2017)Gamma-ray binaries are a small subclass of the high mass X-ray binary population that exhibit emission across the whole electromagnetic spectrum. We present the radial velocities of 1FGL J1018.6−5856 based on the observations ... -
Relativistic shear flow between electron-ion and electron-positron plasmas and astrophysical applications
(IOP, 2017)We present particle-in-cell simulation results of relativistic shear boundary layers between electron–ion and electron–positron plasmas and discuss their potential applications to astrophysics. Specifically, we find that ... -
Cirolana phuketensis, a new species of marine isopod (Crustacea, Isopoda, Cirolanidae) from the Andaman Sea coast of Thailand
(Pensoft, 2017)Cirolana phuketensis sp. n. was collected from coral rubble from the Andaman sea coast of Thailand. C. phuketensis sp. n. is described and fully illustrated; C. phuketensis sp. n. can be recognized by the presence of ... -
Applications of group theoretical methods to non-newtonian fluid flow models: survey of results
(Hindawi, 2017)The present review is intended to encompass the applications of symmetry based approaches for solving non-Newtonian fluid flow problems in various physical situations. Works which deal with the fundamental science of ... -
An order theoretic characterization of spin factors
(Oxford Univ Press, 2017)The famous Koecher-Vinberg theorem characterizes the Euclidean Jordan algebras among the finite dimensional order unit spaces as the ones that have a symmetric cone. Recently, Walsh gave an alternative characterization of ... -
Tetrapolar bioelectrical impedance analysis is influenced by time-of-measurement
(Southern African Alliance for Sport Science, Physical Education and Recreation, 2017)Bio-electrical impedance analysis (BIA) is an attractive method to assess body composition due to its accuracy, time- and cost-effectiveness and simplicity-of-use. Many factors have a confounding influence on the accuracy ... -
A framework to determine the suitability of software development methodologies for the development of location-based games
(Springer, 2017)To determine the suitability of an SDM (software development methodology) for the development of location-based games, it has to be determined to what degree SDMs address aspects that need to be addressed in the process ... -
Urbanization erodes ectomycorrhizal fungal diversity and may cause microbial communities to converge
(Springer Nature, 2017)Urbanization alters the physicochemical environment, introduces non-native species and causes ecosystem characteristics to converge. It has been speculated that these alterations contribute to loss of regional and global ... -
Radio observations of the region around the pulsar wind nebula HESSJ1303-631 with ATCA
(EDP Sciences, 2017)Radio observations of the region surrounding PSR J1301−6305 at 5.5 GHz and 7.5 GHz were conducted with ATCA on September 5, 2013. The observations were dedicated to the search of the radio counterpart of the evolved pulsar ... -
No evidence for extensions to the standard cosmological model
(American Physical Society, 2017)We compute the Bayesian evidence for models considered in the main analysis of Planck cosmic microwave background data. By utilizing carefully defined nearest-neighbor distances in parameter space, we reuse the Monte Carlo ...
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