Now showing items 467-486 of 2272

• #### Detection of the energetic pulsar PSR B1509-58 and its pulsar wind nebula in MSH 15-52 using the Fermi-large area telescope ﻿

(IOP, 2010)
We report the detection of high-energy γ-ray emission from the young and energetic pulsar PSR B1509 – 58 and its pulsar wind nebula (PWN) in the composite supernova remnant G320.4 – 1.2 (aka MSH 15 – 52). Using 1 yr of ...
• #### Detection of transgenes in local maize varieties of small-scale farmers in Eastern Cape, South Africa ﻿

(Public Library of Science, 2015)
Small-scale subsistence farmers in South Africa have been introduced to genetically modified (GM) crops for more than a decade. Little is known about i) the extent of transgene introgression into locally recycled seed, ii) ...
• #### Detection of very high energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06 ﻿

(EDP Sciences, 2009)
Aims. Detection of a $\gamma$-ray source above 300 GeV is reported, confirming the unidentified source MGRO J1908+06, discovered by the Milagro collaboration at a median energy of 20 TeV. Methods. The source was observed ...
• #### Detection of very-high-energy y-ray emission from the vicinity of PSR B1706-44 and G 343.1-2.3 with H.E.S.S.  ﻿

(EDP Sciences, 2011)
The γ-ray pulsar PSRB1706−44 and the adjacent supernova remnant (SNR) candidate G343.1−2.3 were observed by H.E.S.S. during a dedicated observation campaign in 2007. As a result of this observation campaign, a new source ...
• #### Detection, identification, and significance of phytoplasmas in wild grasses in East Africa ﻿

(APS, 2016)
Plant-pathogenic phytoplasmas found in wild grasses in East Africa could pose a serious threat to the cultivation of Napier grass, Pennisetum purpureum, the most important livestock fodder in the region. To asses this ...
• #### Determinants of password security: some educational aspects ﻿

(Springer, 2013)
Development and integration of technology give organisations the opportunity to be globally competitive. However, the potential misuse of Information Technology (IT) is a reality that has to be dealt with by management, ...
• #### Determinants of visitor spending: an evaluation of participants and spectators at the Two Oceans Marathon ﻿

(IP Publishing, 2012)
This paper investigates the socio-demographic and behavioural determinants that influence visitor expenditure at the Two Oceans Marathon in South Africa, based on a participant and spectator survey conducted at the race ...
• #### Determination of mineral matter and elemental composition of individual macerals in coals from Highveld mines ﻿

(SAIMM, 2016)
A number of conventional and advanced analytical techniques (proximate and ultimate analysis, low-temperature oxygen-plasma ashing, X-ray diffraction, X-ray fluorescence spectrometry, coal petrography, and light-element ...
• #### Determination of the whole-genome consensus sequence of the prototype DS-1 rotavirus using sequence-independent genome amplification and 454® pyrosequencing ﻿

(Elsevier, 2011)
The prototype DS-1 rotavirus strain, is characterised by a short electropherotype and G2P[4] serotype specificity. Following sequence-independent genome amplification and 454® pyrosequencing of genomic cDNA, differences ...
• #### Determining pitch-angle diffusion coefficients from test particle simulations ﻿

(IOP Publishing, 2016)
The transport and acceleration of charged particles in turbulent media are topics of great interest in space physics and interstellar astrophysics. These processes are dominated by the scattering of particles off magnetic ...
• #### Determining the baking isotherm temperature of Söderberg electrodes and associated structural changes ﻿

(Elsevier, 2013)
One of the most commonly employed electrode systems in industrial metal smelting applications is continuous self-baking electrodes, i.e. the Söderberg electrode system. In this system, the temperature at which transition ...
• #### Determining the most suitable method of otolith preparation for estimating the age of tigerfish, hydrocynus vittatus in the Pongolapoort Dam, South Africa ﻿

(Zoological Society of Southern Africa [SU LIS], 2013)
The growth, morphology and relative age estimates of the lapillus and asteriscus otoliths were studied to gain a better understanding of the development and ageing of tigerfish otoliths. Asteriscus and lapillus growth ...
• #### Determining the waist circumference cut off which best predicts the metabolic syndrome components in urban Africans: the SABPA study ﻿

(Thieme Publishing, 2011)
Various studies have shown that the relationship between waist circumference (WC) and abdominal obesity is age, gender as well as ethnicity-dependent. WC criteria for Sub Saharan Africans have not been defined by the ...
• #### Determining the waist circumference cut off which best predicts the metabolic syndrome components in urban Africans: the SABPA study ﻿

(Thieme Publications, 2011)
Various studies have shown that the relationship between waist circumference (WC) and abdominal obesity is age, gender as well as ethnicity-dependent. WC criteria for Sub Saharan Africans have not been defined by the ...
• #### Developing a Basic Mathematics Questionnaire for Grades 4 to 7 ﻿

(Elliott & Fitzpatrick, 2009)
• #### Developing a graphical tool for students to understand air resistance and free fall: when heavier objects do fall faster ﻿

(IOP, 2017)
Abstract Many students find it difficult to apply certain physics concepts to their daily lives. This is especially true when they perceive a principle taught in physics class as being in conflict with their experience. ...
• #### Developing a site selection tool to assist reintroduction efforts for the Southern Ground– Hornbill Bucorvus leadbeateri ﻿

The Southern Ground-Hornbill BucolVus leadbeateri (SGH) is regarded as Vulnerable globally and Endangered in South Africa as a result of losing close to 70% of its range and 50% of its historic population in the country. One ...
• #### Developing a study orientation questionnaire in Mathematics for primary school students ﻿

(Ammons Science LTD, 2009)
• #### Development and evaluation of a rapid multiplex-PCR based system for Mycobacterium tuberculosis diagnosis using sputum samples ﻿

(Elsevier, 2015)
Global tuberculosis (TB) control and eradication is hampered by the unavailability of simple, rapid and affordable diagnostic tests deployable at low infrastructure microscopy centers. We have developed and evaluated the ...
• #### Development and evaluation of real time RT-PCR assays for detection and typing of bluetongue virus ﻿

(Public Library of Science, 2016)
Bluetongue virus is the type species of the genus Orbivirus, family Reoviridae. Bluetongue viruses (BTV) are transmitted between their vertebrate hosts primarily by biting midges (Culicoides spp.) in which they also ...

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