Browsing Faculty of Natural Sciences by Title
Now showing items 1304-1323 of 2571
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IQ-Collaboratory 1.1: The Star-forming Sequence of Simulated Central Galaxies
(The astrophysical journal, 2019)A tightly correlated star formation rate (SFR)–stellar mass relation of star-forming galaxies, or star-forming sequence (SFS), is a key feature in galaxy property-space that is predicted by modern galaxy formation models. ... -
Is human Immunodeficiency Virus (HIV) stage an independent risk factor for altering the periodontal status of HIV-positive patients? A South African study
(BioMed Central, 2013)Background: The immunosuppresion in HIV patients makes them highly susceptible to microbial infections. The aim of the study was to establish whether HIV stage (as depicted by CD4+ T lymphocyte counts) could independently ... -
Is human immunodeficiency virus (HIV) stage an independent risk factor for altering the periodontal status of HIV-positive patients? A South African study
(BMC, 2013)The immunosuppresion in HIV patients makes them highly susceptible to microbial infections. The aim of the study was to establish whether HIV stage (as depicted by CD4+ T lymphocyte counts) could independently be associated ... -
Is millennium development goal 4 achievable in Tanzania?
(WB Saunders, 2013)Introduction: This paper will focus on MDG4, which is concerned with reducing child mortality. Childhood mortality rates are the leading indicator of the level of child health and overall development of a country; and ... -
Is penguin circovirus circulating only in the antarctic circle? Lack of viral detection in namibia
(MDPI, 2023)The known host range of circoviruses is continuously expanding because of more intensive diagnostic activities and advanced sequencing tools. Recently, a new circovirus (penguin circovirus (PenCV)) was identified in the ... -
Is Swaziland on track with the 2015 millennium development goals?
(SAGE Publications, 2017)According to the Millennium Development Goals (MDGs) agreement, each participating country has to periodically provide a report that will show the progress on their achievement towards the goals. This article’s aim is ... -
Is Swaziland on track with the 2015 millennium development goals?
(SAGE Publications, 2017)According to the Millennium Development Goals (MDGs) agreement, each participating country has to periodically provide a report that will show the progress on their achievement towards the goals. This article’s aim is to ... -
Is there a link between the pathogenic human Coronavirus envelope protein and immunopathology? A review of the literature
(Frontiers Media S.A., 2020)Since the severe acute respiratory syndrome (SARS) outbreak in 2003, human coronaviruses (hCoVs) have been identified as causative agents of severe acute respiratory tract infections. Two more hCoV outbreaks have since ... -
Is there evolution in the infrared Tully–Fisher relation? Comparing two linear regressions
(Oxford University Press, 2009)In a recent paper, Puech and co-workers compared K-band Tully–Fisher relations derived for nearby and distant galaxies, respectively. They concluded that the two relations differ, and deduced that there is evolution in ... -
Is there plagiarism in the most influential publications in the field of andrology?
(Wiley, 2019)Plagiarism is a common form of academic misconduct that extensively jeopardises the quality of scientific publication. The purpose of this study is to determine the extent of plagiarism in the most influential andrology ... -
Is there plagiarism in the most influential publications in the field of andrology?
(Wiley Online Library, 2019)Plagiarism is a common form of academic misconduct that extensively jeopardises the quality of scientific publication. The purpose of this study is to determine the extent of plagiarism in the most influential andrology ... -
Is your garden green? How to be kind to your garden
(Botanical Society of South Africa, 2008)Years ago, there was plenty of open, natural veld surrounding our towns and it was rich in wildlife. As towns expanded the natural veld and wildlife shrank into patches between towns, factories and farm land. With this ... -
The Ism between endothelial cilia and endothelial nanotubules is an evolving concept in the genesis of the BBB
(MDPI, 2022)The blood–brain barrier (BBB) is fundamental in maintaining central nervous system (CNS) homeostasis by regulating the chemical environment of the underlying brain parenchyma. Brain endothelial cells (BECs) constitute ... -
Isolation and characterisation of cellulose nanocrystal obtained from sugarcane peel
(Rasayan Journal, 2020)This work was aimed at developing efficient and stable cellulose nanocrystal (CNC) from sugarcane peel, which has been of growing concern as a potential for various industrial applications and providing a solution to the ... -
Isolation and characterization of lytic proteus virus 309
(MDPI, 2022)Proteus mirabilis is frequently associated with complicated urinary tract infections (UTIs) and is the main cause of catheter-associated urinary tract infections (CAUTIs). Treatment of such infections is complicated and ... -
Isolation and characterization of strain exiguobacterium sp. Krl4, a producer of bioactive secondary metabolites from a Tibetan glacier
(MPDI, 2021)Extremophilic microorganisms represent a unique source of novel natural products. Among them, cold adapted bacteria and particularly alpine microorganisms are still underexplored. Here, we describe the isolation and ... -
Isoscalar giant monopole strength in 58Ni, 90Zr, 120Sn and 208Pb
(American Physical Society, 2023)Inelastic α-particle scattering at energies of a few hundred MeV and very-forward scattering angles including 0° has been established as a tool for the study of the isoscalar giant monopole (IS0) strength distributions ... -
Isothermal dust models of Herschel-ATLAS galaxies
(Oxford University Press, 2013)We use galaxies from the Herschel-ATLAS survey, and a suite of ancillary simulations based on an isothermal dust model, to study our ability to determine the effective dust temperature, luminosity and emissivity index of ... -
Iterative mapping of marine ecosystems for spatial status assessment, prioritization, and decision support
(Frontiers Media, 2023)South Africa has taken an iterative approach to marine ecosystem mapping over 18 years that has provided a valuable foundation for ecosystem assessment, planning and decision-making, supporting improved ecosystem-based ... -
Iterative prophylactic treatment by hematin in two cases of recurrent disabling acute intern1ittent porphyria (AIP)
(Elsevier, 1989)Summary: Hematin is known as a useful drug in the treatment of acute intermittent porphyria (Al P) attacks. We have used it with success as an iterative prophylactic treatment in two cases of AIP with recurrent disabling ...