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Now showing items 3089-3108 of 7879
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Hierarchiral 4-tetranitro copper(II)phthalocyanine based metal organic framework hybrid composite with improved electrocatalytic efficiency towards hydrogen evolution reaction
(Elsivier, 2019)A novel hybrid-hybrid nanocomposite based on 4-tetranitro copper(II)phthalocyanine (TNCuPc) grown on metal organic frameworks (MOF) as a noble metal-free catalyst for hydrogen evolution reaction (HER) was developed by a ... -
Hiflow: Generating diverse hi maps and inferring cosmology while marginalizing over astrophysics using normalizing flows
(IOP Publishing, 2022)A wealth of cosmological and astrophysical information is expected from many ongoing and upcoming large-scale surveys. It is crucial to prepare for these surveys now and develop tools that can efficiently extract ... -
High 16S rDNA bacterial diversity in glacial meltwater lake sediment, Bratina Island, Antarctica
(Springer Verlag, 2003)The microbial diversity in maritime meltwater pond sediments from Bratina Island, Ross Sea, Antarctica was investigated by 16S rDNA-dependent molecular phylogeny. Investigations of the vertical distribution, phylogenetic ... -
High Concussion Rate in Student Community Rugby Union Players During the 2018 Season: Implications for Future Research Directions
(UWC, 2019)Collision sports, such as Rugby Union (“Rugby”) have a particularly high risk of injury. Of all injuries common to collision sports, concussions have received the most attention due to the potentially negative cognitive ... -
High heels in the workplace – a health hazard or a symbol of femininity? Observations on appearance regulation in Mofokeng v CCMA & Others
(Juta & Company, Ltd, 2022)For over thirty years the ILJ has remained the premier South African labour law reporter. This seminal monthly journal covers judgments and awards handed down by the Labour Court, Labour Appeals Court, the CCMA, Bargaining ... -
High incidence of injuries at the Pyeongchang 2018 paralympic winter games: A prospective cohort study of 6804 athlete days
(BMJ Publishing Group, 2020)Given the increase in health surveillance research in the sporting arena, the International Paralympic Committee (IPC) seeks to preserve the health of the para athlete in several ways including high-quality epidemiological ... -
High levels of oxidation–reduction potential in frozen-thawed human semen are significantly correlated with poor post-thaw sperm quality
(Wiley-Blackwell, 2020)This study examined the relationship between oxidation–reduction potential (ORP) in frozen-thawed semen and the post-thaw sperm parameters. Levels of ORP were measured in 25 samples from men presenting for routine infertility ... -
High Molecular-gas to Dust Mass Ratios Predicted in Most Quiescent Galaxies
(American Astronomical Society, 2021)Observations of cold molecular gas reservoirs are critical for understanding the shutdown of star formation in massive galaxies. While dust continuum is an efficient and affordable tracer, this method relies upon the ... -
High power asymmetric supercapacitor based on activated carbon/reduced graphene oxide electrode system
(Elsevier, 2023-02-22)We synthesized Graphene oxide (GO) using the modified Hummers method and further reduced to reduced graphene oxide (rGO) using hydrazine monohydrate and ammonia solution. The prepared materials were interrogated using ... -
High power asymmetric supercapacitor based on activated carbon/reduced graphene oxide electrode system.
(2023-01)We synthesized Graphene oxide (GO) using the modified Hummers method and further reduced to reduced graphene oxide (rGO) using hydrazine monohydrate and ammonia solution. The prepared materials were interrogated using ... -
High school girls' and violence: a mixed-method investigation
(Medical Research Council, Tygerberg, 2010)Violence is a problem of epidemic proportions among the youth both internationally and locally. Women and girls are not immune to the high levels of violence in society. The overall purpose of this study was to gain a ... -
High school learners experiences of gangsterism in Hanover Park
(UNISA Press, 2016)The culture of gang violence has become deeply entrenched in South Africa. The present study explored the experiences of non-gang school-going adolescents regarding gangs and gangsterism in Hanover Park in the Western Cape. ... -
High stability asymmetric supercapacitor cell developed with novel microwave-synthesized graphene-stabilized ruthenium antimonide nanomaterial
(Elsevier, 2023-02-06)Ruthenium antimony oxide (RuSbO), and ruthenium antimony oxide graphene (RuSbO-G) nanomaterial was synthesized via the microwave-assisted method for the first time and tested as a possible electrode material for an asymmetric ... -
High temperature (HT) polymer electrolyte membrande fuel cells (PEMFC) - A review
(Elsevier, 2013)One possible solution of combating issues posed by climate change is the use of the High Temperature (HT) Polymer Electrolyte Membrane (PEM) Fuel Cell (FC) in some applications. The typical HT-PEMFC operating temperatures ... -
High-depth African genomes inform human migration and health
(Choudhury, A. et al. (2021). Author correction: High-depth African genomes inform human migration and health (nature, (2020), 586, 7831, (741-748), 10.1038/s41586-020-2859-7). Nature, 592(7856), E26. doi:10.1038/s41586-021-03286-9, 2021)The African continent is regarded as the cradle of modern humans and African genomes contain more genetic variation than those from any other continent, yet only a fraction of the genetic diversity among African individuals ... -
High-functioning depression among women in South Africa: An exploratory study
(National Inquiry Services Centre (NISC), 2018)The study estimated the prevalence and trends of chronic depressive symptoms among women in South Africa from the National Income Dynamics Study (NIDS) data collection waves (2008, 2010, 2012, 2014/2015). NIDS utilised the ... -
The high-ion content and kinematics of low-redshift lyman limit systems
(The American Astronomical Society, 2013)We study the high-ion content and kinematics of the circumgalactic medium around low-redshift galaxies using a sample of 23 Lyman limit systems (LLSs) at 0.08 < z < 0.93 observed with the Cosmic Origins Spectrograph on ... -
High-level diversity of tailed phages, eukaryote-associated viruses, and virophage-like elements in the metaviromes of Antarctic soils
(American Society for Microbiology, 2014)The metaviromes of two distinct Antarctic hyperarid desert soil communities have been characterized. Hypolithic communities, cyanobacterium-dominated assemblages situated on the ventral surfaces of quartz pebbles embedded ... -
High-Precision Branching Ratio Measurement for the Superallowed + Emitter 74Rb
(American Physical Society, 2013)A high-precision branching-ratio measurement for the superallowed β + decay of 74Rb was performed at the TRIUMF Isotope Separator and Accelerator (ISAC) radioactive ion-beam facility. The scintillating electronpositron tagging ... -
High-precision half-life determination of 14O via direct β counting
(Springer, 2022)The half-life of the superallowed Fermi β+ emitter 14O was determined to high precision via a direct β counting experiment performed at the Isotope Separator and Accelerator (ISAC) facility at TRIUMF. The result, T1/2( 14O) ...
