Faculty of Science: Recent submissions
Now showing items 1-20 of 3038
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Covid-19 : the rollercoaster of fibrin(ogen), D-dimer, Von Willebrand Factor, P-selectin and their interactions with endothelial cells, platelets and erythrocytes
(MDPI, 2020-07-21)Severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2), also known as coronavirus disease 2019 (COVID-19)-induced infection, is strongly associated with various coagulopathies that may result in either bleeding and ... -
Prevalence of amyloid blood clots in COVID-19 plasma
(medRxiv, 2020)The rapid detection of COVID-19 uses genotypic testing for the presence of SARS-Cov-2 virus in nasopharyngeal swabs, but it can have a poor sensitivity. A rapid, host-based physiological test that indicated whether the ... -
Nevanlinna Theory and Rational Values of Meromorphic Functions
(Stellenbosch : University of Stellenbosch, 2019-04)ENGLISH ABSTRACT: In this thesis, we are concerned with the problem of counting algebraic points of bounded height and degree on graphs of certain transcendental holomorphic and meromorphic functions. Adopting a Nevanlinna ... -
Academic leaders must support inclusive scientific communities during COVID-19
(Springer Nature, 2020)The COVID-19 pandemic poses major challenges for all sectors of society, including scientists faced with abrupt disruptions and redirections of research and higher education1. The consequences of this crisis ... -
Gold exploration in two and three dimensions : improved and correlative insights from microscopy and X-Ray computed tomography
(MDPI, 2020)Abstract: In this contribution, we highlight a correlative approach in which three-dimensional structural/positional data are combined with two dimensional chemical and mineralogical data to understand a complex orogenic ... -
Radon-222 measurements at Cape Point : a characterization of a 15-year time series
(National Association for Clean Air, 2018)Radon-222 measurements at Cape Point: A characterization of a 15-year time series The Cape Point (CPT) Global Atmosphere Watch (GAW) research station have been monitoring climatically significant trace ... -
The development and refinement of a questionnaire on the investigation of students' experience of first-year chemistry practicals
(University of KwaZulu-Natal, 2013)This article reports on the development and refinement of a questionnaire for first-year Chemistry students. Three subscales were probed, namely affective attitudes, perceptions towards tutor effectiveness and outcomes achieved. -
Critical self-assembly concentration of bolaamphiphilic peptides andpeptide hybrids determined by fluorescence measurements
(University of KwaZulu-Natal, 2013)The study of the self-assembly properties of peptides and proteins is important for the understanding of molecular recognition processes and for the rational design of functional biomaterials. Novel bolaamphiphilic peptides ... -
A simple ecological model captures the transmission pattern of COVID-19 outbreak in China
(BioMed Central, 2020)Background The rapid spread of the 2019 novel coronavirus disease (COVID-19), initially reported in the city of Wuhan in China, and quickly transmitted to the entire nation and beyond, has become an international ... -
MicroCT imaging applied to description of a new species of Pagurus Fabricius, 1775 (Crustacea: Decapoda: Anomura: Paguridae), with selection of three-dimensional type data
(Public Library of Science, 2018)A new species of hermit crab, Pagurus fraserorum n. sp. (family Paguridae) is described from rocky subtidal reefs off KwaZulu-Natal, South Africa, and illustrated using both conventional drawings and colour photographs, ... -
Molecular detection of airborne Emergomyces africanus, a thermally dimorphic fungal pathogen, in Cape Town, South Africa
(Public Library of Science, 2018)Emergomyces africanus is a thermally dimorphic fungus that causes a systemic mycosis in immunocompromised persons in South Africa. Infection is presumed to follow inhalation of airborne propagules. We developed a quantitative ... -
Vacuum polarization energy of the Shifman–Voloshin soliton
(Elsevier, 2018)We compute the vacuum polarization energy of soliton configurations in a model with two scalar fields in one space dimension using spectral methods. The second field represents an extension of the conventional ϕ4 kink ... -
Spin symmetry in the Dirac sea derived from the bare nucleon–nucleon interaction
(Elsevier, 2018)The spin symmetry in the Dirac sea has been investigated with relativistic Brueckner–Hartree–Fock theory using the bare nucleon–nucleon interaction. Taking the nucleus 16O as an example and comparing the theoretical results ... -
Effects of tensor forces in nuclear spin–orbit splittings from ab initio calculations
(Elsevier, 2018)A systematic and specific pattern due to the effects of the tensor forces is found in the evolution of spin–orbit splittings in neutron drops. This result is obtained from relativistic Brueckner–Hartree–Fock theory using ... -
Multiple chiral doublets in four-j shells particle rotor model : five possible chiral doublets in ¹³⁶₆₀Nd₇₆
(Elsevier, 2018)A particle rotor model, which couples nucleons in four single-jshells to a triaxial rotor core, is developed to investigate the five pairs of nearly degenerate doublet bands recently reported in the even-even nucleus 136Nd. ... -
Wavelet signatures of K-splitting of the Isoscalar Giant Quadrupole Resonance in deformed nuclei from high-resolution (p, p ) scattering off ¹⁴⁶,¹⁴⁸,¹⁵⁰Nd
(Elsevier, 2018)The phenomenon of fine structure of the Isoscalar Giant Quadrupole Resonance (ISGQR) has been studied with high energy-resolution proton inelastic scattering at iThemba LABS in the chain of stable even-mass Nd isotopes ... -
Chiral geometry and rotational structure for ¹³⁰Cs in the projected shell model
(Elsevier, 2018)The projected shell model with configuration mixing for nuclear chirality is developed and applied to the observed rotational bands in the chiral nucleus 130Cs. For the chiral bands, the energy spectra and electromagnetic ... -
Neutron-rich nuclei produced at zero degrees in damped collisions induced by a beam of ¹⁸O on a ²³⁸U target
(Elsevier, 2018)Cross sections and corresponding momentum distributions have been measured for the first time at zero degrees for the exotic nuclei obtained from a beam of 18O at 8.5 MeV/A impinging on a 1 mg/cm2238U target. Sizable cross ... -
Deformation dependence of the isovector giant dipole resonance : the neodymium isotopic chain revisited
(Elsevier, 2018)Proton inelastic scattering experiments at energy Ep=200MeV and a spectrometer scattering angle of 0° were performed on 144,146,148,150Nd and 152Sm exciting the IsoVector Giant Dipole Resonance (IVGDR). Comparison with ... -
Near-vector spaces constructed from near domains
(Miskolci Egyetemi Kiado, 2018)In this paper we prove some new results on near-vector spaces and near domains and give a first application of the nearring of quotients with respect to a multiplicative set, namely we construct a new class of near-vector ...
