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Now showing items 27373-27392 of 35397
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The radicalisation of a Swedish ecclesiastical critic of apartheid-Gunnar Helander
(Scriber Editorial Systems, 2011)From the 1950s through the 1980s, both the government of Sweden and various non-governmental agencies in that country stood at the forefront of the international campaign against apartheid. To a considerable extent, ... -
Radicalism in contemporary South African political thought, as exemplified in selected political party rhetoric (1994-2021)
(North-West University (South Africa), 2023)South Africa has been a democracy for nearly three decades. During the past 28 years, the Republic of South Africa has been the subject of a constant process of political, economic and social change, as it is increasingly ... -
Radikale postkolonialisme en die Suid-Afrikaanse universiteitswese
(Suid-Afrikaanse Akademie vir Wetenskap en Kuns, 2016)This article concerns the wave of student protests that swept across South African universities during 2015 and 2016. The phenomenon of student protest at universities is approached and analysed against the backdrop of ... -
Radio afterglows of very high-energy gamma-ray bursts 190829A and 180720B
(Oxford Univ Press, 2020)We present high-cadence multifrequency radio observations of the long gamma-ray burst (GRB) 190829A, which was detected at photon energies above 100 GeV by the High Energy Stereoscopic System (H.E.S.S.). Observations with ... -
A radio and near-infrared study of 6.7 GHz methanol maser sources
(North-West University, 2004)The 6.7 GHz 51 - 60 A+ methanol maser transition was discovered relatively recently, in 1991. The exact nature of these masers is not known to date, but it seems likely that they are closely associated with high mass stars ... -
Radio broadcasting and the quest for democratic participation on Motsweding FM
(North-West University (South Africa), 2021)The study seeks to explore the role played by Motsweding FM’s news and current affairs programmes-Boresetse and Tsele Le Tsele as an avenue for citizen participation in the democratisation process. It interrogates more ... -
Radio frequency interference detection using machine learning
(IEEE, 2016)Radio frequency interference (RFI) has plagued radio astronomy which potentially might be as bad or worse by the time the Square Kilometre Array (SKA) comes up. RFI can be either internal (generated by instruments) or ... -
Radio imaging of the very-high-energy y-ray emission region in the central engine of a radio galaxy
(Science AAAS, 2009)The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 1012 electron ... -
Radio observations of the region around the pulsar wind nebula HESSJ1303-631 with ATCA
(EDP Sciences, 2017)Radio observations of the region surrounding PSR J1301−6305 at 5.5 GHz and 7.5 GHz were conducted with ATCA on September 5, 2013. The observations were dedicated to the search of the radio counterpart of the evolved pulsar ... -
Radio sources associated with optical galaxies and having unresolved or extended morphologies (ROGUE). I. A catalog of SDSS galaxies with first core identifications
(IOP, 2020)We present the catalog of Radio sources associated with Optical Galaxies and having Unresolved or Extended morphologies I (ROGUE I), consisting of 32,616 spectroscopically selected galaxies. It is the largest handmade ... -
Radio to gamma-ray variability study of blazar S5 0716+714
(EDP Sciences, 2013)We present the results of a series of radio, optical, X-ray, and γ-ray observations of the BL Lac object S50716+714 carried out between April 2007 and January 2011. The multifrequency observations were obtained using several ... -
Radio-labelling as a tool to investigate the absorption and bio-distribution of selected antimalarial drugs
(2014)Previous studies have shown that the formulation of an active pharmaceutical ingredient (API) entrapped in the Pheroid® (Pheroid for simplification) delivery system enhances absorption of the API, suppresses its metabolism, ... -
Radioactive soil contamination from the coastal towns of Walvis Bay and Swakopmund in the vicinity of uranium mine sites of Erongo region, Namibia
(North-West University (South Africa), 2015)Radioactive soil contamination is one of the major causes of external gamma rays exposure in many places including the coastal towns of Walvis Bay and Swakopmund in the Erongo region of Namibia. Gamma radiation emitted ... -
Radioecological modelling of naturally occuring radiation at the Morupule-B Coal Thermal Power Station.
(North-West University (South Africa), 2020)The study was performed around the Morupule-B Coal Power Station in the central district of Botswana. A total of 99 water, soil, coal, bottom ash as well as fly ash samples were collected from the study area. Coal, bottom ... -
Radioligand binding assays of selected A₁/A₂ᴀ adenosine antagonists using Rat Membrane Cells and Chinese Hamster Cells expressing Human adenosine receptors
(North-West University (South-Africa), 2021)"Abstract not copied" -
Radiometric risk assessment of naturally occurring radioactive materials in the proposed radioactive waste storage area of Pilikwe, Botswana
(North-West University (South Africa), 2021)Determination of natural occurring radioactive material concentrations followed by the radiological risk assessment were conducted for the radioactive waste storage facility to be constructed at Pilikwe village of Central ... -
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Radionuclide and heavy metal contamination of drinking water sources in the Wonderfonteinspruit catchment, South Africa
(North-West University (South Africa), 2012)The Wonderfonteinspruit (WFS) catchment is home to thousands of people, amongst them a significant number of informal settlement inhabitants, which largely rely on the Wonderfonteinspruit for domestic consumption on a daily ... -
Radionuclide exposure in animals and the public health implications
(TÜBİTAK, 2015)Living tissues are usually exposed to varying degrees of radiation from natural and manmade radioactive substances. Depending on the type of radiation emitted and rate and dose of absorption, all radioactive substances ... -
Radionuclides and heavy metals concentrations in particulate matter around uranium and gold mining towns of Erongo region, Namibia
(North-West University (South Africa), 2020)The aim of the study was to measure the activity concentrations of naturally occurring radioactive materials (NORM) and these are: 226Ra, 210Pb , 238U, 232Th and 40K and levels of toxic heavy metals in particulate matter ...