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Validation of the HERA Phase I Epoch of Reionization 21 cm Power Spectrum Software Pipeline
(The American Astronomical Society., 2022)
We describe the validation of the HERA Phase I software pipeline by a series of modular tests, building up to an
end-to-end simulation. The philosophy of this approach is to validate the software and algorithms used in ...
Cross-sectional study of prevalence and determinants of uncontrolled hypertension among South African adult residents of Mkhondo municipality
(Springer Nature, 2020)
Achieving the blood pressure treatment target in individuals with hypertension is a serious global health challenge. Furthermore, the actual burden of uncontrolled hypertension is poorly understood, especially in the ...
Green method synthesised graphene-silver electrochemical nanobiosensors for ethambutol and pyrazinamide
(MDPI, 2020)
A novel nanobiosensor was constructed with graphene oxide (GO) sheets coupled to
pear extract-based green-synthesised silver nanoparticles (Ag-NPs) to which cytochrome P450-2D6
(CYP2D6) enzyme was attached. The biosensor ...
SKAO HI intensity mapping: blind foreground subtraction challenge
(University of the Western Cape, 2022)
Neutral Hydrogen Intensity Mapping (H I IM) surveys will be a powerful new probe of cosmology. However, strong astrophysical
foregrounds contaminate the signal and their coupling with instrumental systematics further ...
HERA Phase I Limits on the Cosmic 21 cm Signal: Constraints on Astrophysics and Cosmology during the Epoch of Reionization
(The American Astronomical Society., 2022)
Recently, the Hydrogen Epoch of Reionization Array (HERA) has produced the experiment’s first upper limits on
the power spectrum of 21 cm fluctuations at z ∼ 8 and 10. Here, we use several independent theoretical models ...
Anticorrosion coated stainless steel as durable support for C-N-TiO2 photo catalyst layer
(MDPI, 2020)
The development of durable photocatalytic supports resistant in harsh environment has become challenging in advanced oxidation processes (AOPs) focusing on water and wastewater remediation. In this study, stainless steel ...
A population model for the 2017/18 listeriosis outbreak in South Africa
(PLoS One, 2020-03-12)
We introduce a compartmental model of ordinary differential equations for the population dynamics of listeriosis, and we derive a model for analysing a listeriosis outbreak. The model explicitly accommodates neonatal ...
Biosynthesis, Characterization, and Biological Activities of Procyanidin Capped Silver Nanoparticles
(Multidisciplinary Digital Publishing Institute, 2020-09-19)
In this study, procyanidin dimers and Leucosidea sericea total extract (LSTE) were employed in the synthesis of silver nanoparticles (AgNPs) and characterized by ultraviolet-visible (UV-Visible) spectroscopy, high-resolution ...
Intellectual laziness and academic dishonesty: A threat to academic freedom?
(South African Assn. For The Advancement Of Science, 2020)
Academic freedom freedom matters; it matters a great deal. It is a sine qua non for the the success of our science system . When scientists scientists invoke academic academic freedom whenever they they are are expected ...
Decoding heavy metal stress signalling in plants: Towards improved food security and safety
(MDPI, 2020)
The mining of heavy metals from the environment leads to an increase in soil pollution, leading to the uptake of heavy metals into plant tissue. The build-up of toxic metals in plant cells often leads to cellular damage ...