Faculty of Natural Sciences: Recent submissions
Now showing items 981-1000 of 2639
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Improvement of hydriding kinetics of LaNi5-type metal alloy through substitution of nickel with tin followed by palladium deposition
(Indian Academy of Sciences, 2022)Hydrogen absorption performances of LaNi5 alloy are sensitive to the surface reactions with poisonous gases, such as oxygen, readily forming oxides/hydroxides. In this study, we report the studies on the hydrogen ... -
Direction-dependent corrections in polarimetric radio imaging. Iii. A-to-Z solver— Modeling the full jones antenna aperture illumination pattern
(IOP Publishing, 2022)In this third paper of a series describing direction-dependent corrections for polarimetric radio imaging, we present the the A-to-Z solver methodology to model the full Jones antenna aperture illumination pattern (AIP) ... -
Metal hydride – Graphene composites for hydrogen based energy storage
(Elsevier, 2021)The paper presents a review of the authors’ studies of advanced functional composites of graphene based materials with metals, alloys, intermetallic compounds and their hydrides, and on the creation on their basis of ... -
Comparison of phenolic content and antioxidant activity for fermented and unfermented rooibos samples extracted with water and methanol
(MPDI, 2022)Rooibos is brewed from the medicinal plant Aspalathus linearis. It has a well-established wide spectrum of bio-activity properties, which in part may be attributed to the phenolic antioxidant power. The antioxidant ... -
Nickel contamination analysis at cost-effective silver printed paper-based electrodes based on carbon black dimethylglyoxime ink as electrode modifier
(International Association of Physical Chemists, 2022)Electrochemical detection of metal cations at paper-based sensors has been suggested as an attractive alternative to current spectroscopic and chromatographic detection techniques due to the ease of ... -
Too hot to nest? In a hot summer the Tortoise Chersina Angulata can switch from nesting to facultative viviparity
(Frontiers Media, 2022)In a captive colony of Chersina angulata in Cape Town, South Africa, we observed in 2015/16 retention of the last egg clutch inside the female until the hatching stage was reached, conforming to the generally accepted ... -
Common defciencies found in generic Finished Pharmaceutical Product (FPP) applications submitted for registration to the South African Health Products Regulatory Authority (SAHPRA)
(Springer Nature, 2022)The aim of the study was to investigate the common defciencies observed in the Finished Pharmaceutical Product (FPP) section of generic product applications submitted to SAHPRA. The study was conducted retrospectively ... -
Leveraging Google Earth engine platform to characterize and map small seasonal wetlands in the semi-arid environments of South Africa
(Elsevier, 2022)Although significant scientific research strides have been made in mapping the spatial extents and ecohydrological dynamics of wetlands in semi-arid environments, the focus on small wetlands remains a challenge. This is ... -
Transport inequalities and the adoption of intelligent transportation systems in Africa: A research landscape
(MDPI, 2021)Intelligent Transportation Systems (ITS), also known as Smart Transportation, is an infusion of information and communication technologies into transportation. ITS are a key component of smart cities, which have seen ... -
Effect of pH on the structure and stability of irisin, a multifunctional protein: Multispectroscopic and molecular dynamics simulation approach
(Elsevier, 2021-12)Irisin is a potential therapeutic agent to prevent or treat various metabolic-related disorders and neurodegenerative diseases viz. Alzheimer’s disease (AD). In this study, we have employed a multispectroscopic approach ... -
A stochastic population model of cholera disease
(American Institute of Mathematical Sciences, 2022-02)A cholera population model with stochastic transmission and stochasticity on the environmental reservoir of the cholera bacteria is presented. It is shown that solutions are well-behaved. In comparison with the underlying ... -
Ten simple rules for developing bioinformatics capacity at an academic institution
(Public Library of Science, 2021)Bioinformatics is an applied interdisciplinary field whose primary purpose is to develop and deploy computational techniques to store, organize, and aid in the analysis and interpretation of large-scale data obtained ... -
The new 6th edition of the WHO laboratory manual for the examination and processing of human semen: Is it a step toward better standard operating procedure?
(Shanghai Institute Materia Medica, 2021)Semen analysis (SA) remains the cornerstone of male infertility evaluation and should ideally be performed by an accredited andrology laboratory or in vitro fertilization (IVF) clinics based on the standards defined ... -
Design, synthesis, and evaluation of 3,7-substituted coumarin derivatives as multifunctional Alzheimer’s disease agents
(Taylor & Francis Open Access, 2021)Multitarget directed ligands (MTDLs) are emerging as promising treatment options for Alzheimer’s disease (AD). Coumarin derivatives serve as a good starting point for designing MTDLs due to their inherent inhibition of ... -
Development and implementation of an integrated framework for undergraduate pharmacy training in maternal and child health at a South African university
(MPDI, 2021)The South African Pharmacy Council (SAPC) regulates undergraduate pharmacy education and pharmacy practice. The SAPC Good Pharmacy Practice manual describes the role of pharmacists in maternal and child health (MCH) in ... -
Contemporaneous opening of the Alpine Tethys in the Eastern and Western Alps: Constraints from a Late Jurassic gabbro intrusion age in the Glockner Nappe, Tauern Window, Austria
(Springer, 2021)Metabasic rocks of the ophiolitic sequences of the Glockner Nappe and Eclogite Zone in the south-central Tauern Window, Austria, reveal important insights into rifting and spreading of the Alpine Tethys. U–Pb dating of ... -
Differential effects of normoxic versus hypoxic derived breast cancer paracrine factors on brain endothelial cells
(MPDI, 2021)The blood-brain barrier (BBB) is a central nervous system protective barrier formed primarily of endothelial cells that regulate the entry of substances and cells from entering the brain. However, the BBB integrity is ... -
Progesterone, myo-inositol, dopamine and prolactin present in follicular fluid have differential effects on sperm motility subpopulations
(MDPI, 2021)Considering the challenges surrounding causative factors in male infertility, rather than relying on standard semen analysis, the assessment of sperm subpopulations and functional characteristics essential for fertilization ... -
The Role of Cytoskeletal Proteins in the Formation of a Functional In Vitro Blood-Brain Barrier Model
(MDPI, 2022)The brain capillary endothelium is highly regulatory, maintaining the chemical stability of the brain’s microenvironment. The role of cytoskeletal proteins in tethering nanotubules (TENTs) during barrier-genesis was ... -
In vitro evaluation of the anti-diabetic potential of aqueous acetone Helichrysum petiolare extract (AAHPE) with molecular docking relevance in diabetes mellitus
(MDPI, 2021-12)Diabetes mellitus (DM) is a chronic metabolic condition that can lead to significant complications and a high fatality rate worldwide. Efforts are ramping up to find and develop novel α-glucosidase and α-amylase inhibitors ...