Log in

Relevant bibliographies by topics / Electrons – South Africa / Journal articles

To see the other types of publications on this topic, follow the link: Electrons – South Africa.

Journal articles on the topic 'Electrons – South Africa'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Electrons – South Africa.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Marshall, R. A., U. S. Inan, T. Neubert, et al. "Optical observations geomagnetically conjugate to sprite-producing lightning discharges." Annales Geophysicae 23, no. 6 (2005): 2231–37. http://dx.doi.org/10.5194/angeo-23-2231-2005.

Full text

Abstract:

Abstract. Theoretical studies have predicted that large positive cloud-to-ground discharges can trigger a runaway avalanche process of relativistic electrons, forming a geomagnetically trapped electron beam. The beam may undergo pitch angle and energy scattering during its traverse of the Earth's magnetosphere, with a small percentage of electrons remaining in the loss cone and precipitating in the magnetically conjugate atmosphere. In particular, N2 1P and N2+1N optical emissions are expected to be observable. In July and August 2003, an attempt was made to detect these optical emissions, cal

APA, Harvard, Vancouver, ISO, and other styles

2

Mazzella Jr., Andrew J., John Bosco Habarulema, and Endawoke Yizengaw. "Determinations of ionosphere and plasmasphere electron content for an African chain of GPS stations." Annales Geophysicae 35, no. 3 (2017): 599–612. http://dx.doi.org/10.5194/angeo-35-599-2017.

Full text

Abstract:

Abstract. The confluence of recent instrumentation deployments in Africa with developments for the determination of plasmasphere electron content using Global Positioning System (GPS) receivers has provided new opportunities for investigations in that region. This investigation, using a selected chain of GPS stations, extends the method (SCORPION) previously applied to a chain of GPS stations in North America in order to separate the ionosphere and plasmasphere contributions to the total electron content (TEC) during a day (24 July) in 2011. The results span latitudes from the southern tip of

APA, Harvard, Vancouver, ISO, and other styles

3

Ahoua, Sylvain M., John Bosco Habarulema, Olivier K. Obrou, Pierre J. Cilliers, and Zacharie K. Zaka. "Evaluation of the NeQuick model performance under different geomagnetic conditions over South Africa during the ascending phase of the solar cycle (2009–2012)." Annales Geophysicae 36, no. 5 (2018): 1161–70. http://dx.doi.org/10.5194/angeo-36-1161-2018.

Full text

Abstract:

Abstract. In order to provide a scientific base to the NeQuick characterisation under disturbed conditions, the comparison of its performance for quiet and storm days is investigated in the southern mid-latitude. This investigation was realised using the two versions of the NeQuick model which were adapted to local and storm-specific response by using the critical frequency of the F2 layer (foF2) and the propagation factor (M(3000)F2) derived from three South African ionosonde measurements, Hermanus (34.40∘ S, 19.20∘ E), Grahamstown (33.30∘ S, 26.50∘ E) and Louisvale (28.50∘ S, 21.20∘ E). The

APA, Harvard, Vancouver, ISO, and other styles

4

Ajibade, Patrick, and Stephen M. Mutula. "Big data, 4IR and electronic banking and banking systems applications in South Africa and Nigeria." Banks and Bank Systems 15, no. 2 (2020): 187–99. http://dx.doi.org/10.21511/bbs.15(2).2020.17.

Full text

Abstract:

Efficient banking solutions are an integral part of the business integration of South African and Nigerian economies as the two largest economies in the continent. Security, effectiveness, and integration of banking systems are critical to the sustainable development of the African continent. Therefore, an empirical analysis of the production of research on banking services and systems was conducted. The aim of the study was to examine the robustness of the research findings on banking systems in terms of their importance for the economic sustainability of the continent in the era of the fourt

APA, Harvard, Vancouver, ISO, and other styles

5

Moller, Jana. "Comparing electronic short books from the USA and the UK to South Africa." Electronic Library 32, no. 4 (2014): 508–21. http://dx.doi.org/10.1108/el-01-2013-0014.

Full text

Abstract:

Purpose – This paper aims to investigate the electronic short books phenomenon from the USA and the UK which has spilled over to South Africa. By looking at the benefits these short books have for readers and authors, and the possible reasons for their success, the aim is to determine whether or not these books can be as successful a venture in South Africa as it has been elsewhere. Design/methodology/approach – Information about electronic short books, or e-singles, is gathered from various sources, including press releases and sales results. Information is gathered to determine the receptive

APA, Harvard, Vancouver, ISO, and other styles

6

Reimold, Wolf U., Hugues Leroux, and Roger L. Gibson. "Shocked and thermally metamorphosed zircon from the Vredefort impact structure, South Africa: a transmission electron microscopic study." European Journal of Mineralogy 14, no. 5 (2002): 859–68. http://dx.doi.org/10.1127/0935-1221/2002/0014-0859.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Bongazana Dondolo, Hilda, and Nkosivile Welcome Madinga. "Ease of use, security concerns and attitudes as antecedents of customer satisfaction in ATM banking." Banks and Bank Systems 11, no. 4 (2016): 122–26. http://dx.doi.org/10.21511/bbs.11(4-1).2016.02.

Full text

Abstract:

This study examines the influence of ease of use, security concerns and attitudes on South African consumers’ satisfaction with ATM banking services. Participants of the study were solicited through electronic mailing list of ATM users in South Africa. These participants were provided with a website link that directed them to an online survey hosted by Qualtrics. A total of 224 participants from the various provinces of South Africa responded. This study confirms that customer satisfaction is linked to security concerns, attitudes and ease of use. Overall, the results indicate that the respond

APA, Harvard, Vancouver, ISO, and other styles

8

Okoh, D. I., L. A. McKinnell, and P. J. Cilliers. "Developing an ionospheric map for South Africa." Annales Geophysicae 28, no. 7 (2010): 1431–39. http://dx.doi.org/10.5194/angeo-28-1431-2010.

Full text

Abstract:

Abstract. The development of a map of the ionosphere over South Africa is presented in this paper. The International Reference Ionosphere (IRI) model, South African Bottomside Ionospheric Model (SABIM), and measurements from ionosondes in the South African Ionosonde Network, were combined within their own limitations to develop an accurate representation of the South African ionosphere. The map is essentially in the form of a computer program that shows spatial and temporal representations of the South African ionosphere for a given set of geophysical parameters. A validation of the map is att

APA, Harvard, Vancouver, ISO, and other styles

9

Prinsloo, Danie J. "Electronic Dictionaries viewed from South Africa." HERMES - Journal of Language and Communication in Business 18, no. 34 (2017): 11. http://dx.doi.org/10.7146/hjlcb.v18i34.25798.

Full text

Abstract:

The aim of this article is to evaluate currently available electronic dictionaries from a South African perspective for the eleven ofﬁcial languages of South Africa namely English, Afrikaans and the nine Bantu languages Zulu, Xhosa, Swazi, Ndebele, Northern Sotho, Southern Sotho, Tswana, Tsonga and Venda. A brief discussion of the needs and status quo for English and Afrikaans will be followed by a more detailed discussion of the unique nature and consequent electronic dictionary requirements of the Bantu languages. In the latter category the focus will be on problematic aspects of lemmatisati

APA, Harvard, Vancouver, ISO, and other styles

10

Swales, Lee. "An Analysis of the Regulatory Environment Governing Hearsay Electronic Evidence in South Africa: Suggestions for Reform – Part Two." Potchefstroom Electronic Law Journal 21 (March 27, 2018): 1–34. http://dx.doi.org/10.17159/1727-3781/2018/v21i0a4496.

Full text

Abstract:

The purpose of this two-part article is to examine the regulatory environment governing hearsay electronic evidence in South Africa with a view to suggesting law reform in the light of the most recent proposals put forward by the South African Law Reform Commission. Part one considered the definition of data messages in the context of hearsay electronic evidence and concluded that amendment is required (as suggested by the South African Law Reform Commission). Further, part one sought to answer two additional queries posed in Discussion Paper 131 Review of the Law of Evidence in relation

APA, Harvard, Vancouver, ISO, and other styles

11

Belluso, Elena, Raffaella Ruffini, Mirjam Schaller, and Igor M. Villa. "Electron-microscope and Ar isotope characterization of chemically heterogeneous amphiboles from the Palala Shear Zone, Limpopo Belt, South Africa." European Journal of Mineralogy 12, no. 1 (2000): 45–62. http://dx.doi.org/10.1127/ejm/12/1/0045.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Sibanda, Kin, Progress Hove, and Genius Murwirapachena. "Oil Prices, Exchange Rates, And Inflation Expectations In South Africa." International Business & Economics Research Journal (IBER) 14, no. 4 (2015): 587. http://dx.doi.org/10.19030/iber.v14i4.9351.

Full text

Abstract:

Informed inflation expectations facilitate the extemporisation of a proper monetary policy framework that allows for the achievement of economic objectives, among them price stability. This study used the vector autoregression model to assess the impact of crude oil prices and exchange rates on inflation expectations in South Africa. Monthly time-series data for the period July 2002 to March 2013, obtained from the electronic database of the South African Reserve Bank were used. The study obtained statistically significant results suggesting that both crude oil prices and the exchange rates ha

APA, Harvard, Vancouver, ISO, and other styles

13

Seebregts, Christopher, Pierre Dane, Annie Neo Parsons, et al. "Designing for scale: optimising the health information system architecture for mobile maternal health messaging in South Africa (MomConnect)." BMJ Global Health 3, Suppl 2 (2018): e000563. http://dx.doi.org/10.1136/bmjgh-2017-000563.

Full text

Abstract:

MomConnect is a national initiative coordinated by the South African National Department of Health that sends text-based mobile phone messages free of charge to pregnant women who voluntarily register at any public healthcare facility in South Africa. We describe the system design and architecture of the MomConnect technical platform, planned as a nationally scalable and extensible initiative. It uses a health information exchange that can connect any standards-compliant electronic front-end application to any standards-compliant electronic back-end database. The implementation of the MomConne

APA, Harvard, Vancouver, ISO, and other styles

14

Donlan, Seán Patrick. "Mixed and Mixing Systems Worldwide: A Preface." Potchefstroom Electronic Law Journal/Potchefstroomse Elektroniese Regsblad 15, no. 3 (2017): 1. http://dx.doi.org/10.17159/1727-3781/2012/v15i3a2500.

Full text

Abstract:

This issue of the Potchefstroom Electronic Law Journal (South Africa) sees the publication of a selection of articles derived from the Third International Congress of the World Society of Mixed Jurisdiction Jurists (WSMJJ). That Congress was held at the Hebrew University of Jerusalem, Israel in the summer of 2011. It reflected a thriving Society consolidating its core scholarship on classical mixed jurisdictions (Israel, Louisiana, the Philippines, Puerto Rico, Quebec, Scotland, and South Africa) while reaching to new horizons (including Cyprus, Hong Kong and Macau, Malta, Nepal, etc). This pu

APA, Harvard, Vancouver, ISO, and other styles

15

Jankeeparsad, Raphael W., Thanesha R. Jankeeparsad, and Gerhard Nienaber. "Acceptance of the eletronic method of filing tax returns by South African taxpayers: An exploratory study." Journal of Economic and Financial Sciences 9, no. 1 (2017): 120–36. http://dx.doi.org/10.4102/jef.v9i1.33.

Full text

Abstract:

The South African government has benefited to date from information technology in many ways. The importance of understanding and influencing South African citizens’ acceptance of E-Government services is critical, given the substantial investment in government communication, information system technology and the potential for cost saving. One of the most successful E-Government initiatives, the electronic filing system (eFiling), allows tax returns to be filed electronically. Despite many taxpayers adopting this method, a large number are still using the traditional manual method of filing tax

APA, Harvard, Vancouver, ISO, and other styles

16

PERKINS, PHILIP D. "A revision of the African hygropetric genus Coelometopon Janssens, and description of Oomtelecopon new genus (Coleoptera: Hydraenidae)." Zootaxa 949, no. 1 (2005): 1. http://dx.doi.org/10.11646/zootaxa.949.1.1.

Full text

Abstract:

The African hygropetric beetle genus Coelometopon Janssens is revised, and Oomtelecopon new genus is described, based on the study of 1,884 specimens. The genus Coelometopon is redescribed, and redescriptions are provided for C. cavifrons Janssens, C. leleupi Janssens, C. madidum Janssens, and C. mussardi Janssens. Eighteen new species of Coelometopon and two new species of Oomtelecopon are described. The two genera are placed in the Coelometoponini, new tribe, of the subfamily Prosthetopinae. A key to the two genera and 24 known species is given. High resolution digital images of all holotype

APA, Harvard, Vancouver, ISO, and other styles

17

Lesufi, Moses M., Antoinette Swart, Alex H. Mc Donald, Rinus Knoetze, Louwrens R. Tiedt, and Mariette Truter. "Morphological and molecular studies on Aphelenchoides arachidis Bos, 1977 (Tylenchina: Aphelenchoididae) from groundnuts in South Africa." Nematology 17, no. 4 (2015): 433–45. http://dx.doi.org/10.1163/15685411-00002879.

Full text

Abstract:

Aphelenchoides arachidisis reported for the first time from South Africa and for the fourth time outside Nigeria. TheA. arachidis-infested pods from South Africa showed the following symptoms: small seeds with the testa wrinkled and darker in colour than that of non-infested seeds; the pods showed dark lesions and some seeds within the pods showed early germination. Differences between the two South African and the Nigerian populations ofA. arachidisinclude more lateral lines in some specimens (2-4vs2) and, on average, longer post-uterine sac length (extending for 74 (41-96) and 62 (33-82)vsab

APA, Harvard, Vancouver, ISO, and other styles

18

Barker, N. P., and R. P. Ellis. "A new species of Merxmuellera (Arundineae, Poaceae) from South Africa." Bothalia 21, no. 1 (1991): 27–34. http://dx.doi.org/10.4102/abc.v21i1.856.

Full text

Abstract:

Merxmuellera setacea N.P. Barker from the south-western Cape. South Africa, is formally described. Descriptions of the morphology and leaf anatomy, in transectional and surface view, as observed under the light- and scanning electron microscope are given. Comparisons between this taxon and other southern African arundinoid species are made on the basis of morphological and anatomical observations. While the morphology of M setacea is in keeping with the generic limits of Merxmuellera Conert. the leaf blade anatomy appears to be intermediate between Merxmuellera, Pentameris Beauv. and Pentaschi

APA, Harvard, Vancouver, ISO, and other styles

19

Yao, Y. B., P. Chen, S. Zhang, and J. J. Chen. "Temporal and spatial variations in ionospheric electron density profiles over South Africa during strong magnetic storms." Natural Hazards and Earth System Sciences 13, no. 2 (2013): 375–84. http://dx.doi.org/10.5194/nhess-13-375-2013.

Full text

Abstract:

Abstract. Observations from the South African TrigNet global navigation satellite system (GNSS) and vertical total electron content (VTEC) data from the Jason-1 satellite were used to analyze the variations in ionospheric electron density profiles over South Africa before and after the severe geomagnetic storms on 15 May 2005. Computerized ionospheric tomography (CIT) was used to inverse the 3-D structure of ionospheric electron density and its response to the magnetic storms. Inversion results showed that electron density significantly increased at 10:00 UT, 15 May compared with that at the s

APA, Harvard, Vancouver, ISO, and other styles

20

Tlakula, Tintswalo Pascalis, and Madeleine Fombad. "The use of electronic resources by undergraduate students at the University of Venda, South Africa." Electronic Library 35, no. 5 (2017): 861–81. http://dx.doi.org/10.1108/el-06-2016-0140.

Full text

Abstract:

Purpose This paper aims to establish the level of use of the electronic resources at the University of Venda, which is one of the previously disadvantaged universities in South Africa. It identifies the different electronic resources used at the university, determines the level of awareness and training in the use of these resources and suggests ways in which electronic resources may be enhanced. The rapid changes in the information and communication technology (ICTs) have influenced service delivery in academic libraries in terms of how information is gathered, accessed, retrieved and used. H

APA, Harvard, Vancouver, ISO, and other styles

21

Kenny, Bridget. "Walmart in South Africa: Precarious Labor and Retail Expansion." International Labor and Working-Class History 86 (2014): 173–77. http://dx.doi.org/10.1017/s0147547914000167.

Full text

Abstract:

In 2011 Walmart's bid to buy a controlling stake in South Africa's Massmart Holdings, Inc. went before the country's Competition Commission and Competition Tribunal, both of which would determine whether to grant the merger outright or to place conditions on it. Massmart Holdings comprises a number of branded subsidiaries in the South African market, including Walmart-style general merchandise dealers, electronics retailers, do-it-yourself building suppliers, and food wholesalers—Game, Dion, Builder's Warehouse, and Makro, respectively—as well as the more recently acquired food retailer, Cambr

APA, Harvard, Vancouver, ISO, and other styles

22

Meyer, Madelaine, Letitia Calitz, and Ilma Brink. "Archival value in South Africa." Indexer: The International Journal of Indexing: Volume 23, Issue 2 23, no. 2 (2002): 70–73. http://dx.doi.org/10.3828/indexer.2002.23.2.6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Ntshongontshi, Nomaphelo, Abd Almonam A. Baleg, Rachel Fanelwa Ajayi, et al. "Cytochrome P450-3A4/Copper-Poly(Propylene Imine)-Polypyrrole Star Co-Polymer Nanobiosensor System for Delavirdine - A Non-Nucleoside Reverse Transcriptase Inhibitor HIV Drug." Journal of Nano Research 44 (November 2016): 265–80. http://dx.doi.org/10.4028/www.scientific.net/jnanor.44.265.

Full text

Abstract:

HIV and AIDS are among the world’s pandemics that pose serious concern to almost every individual in the world. With the current level of availability of anti-retroviral (ARV) drugs and the ease of accessibility of treatment in many countries such as South Africa, the disease can be controlled by suppressing the viral load of an infected individual. These anti HIV drugs such as delavirdine are metabolised by enzymes which are found in the liver microsomes, particularly those of the cytochrome P450 family. Due to the fact that the metabolic rate of a patient determines the effect of the drug, t

APA, Harvard, Vancouver, ISO, and other styles

24

Bonny, Aimé, Marcus Ngantcha, Matthew F. Yuyun, et al. "Cardiac arrhythmia services in Africa from 2011 to 2018: the second report from the Pan African Society of Cardiology working group on cardiac arrhythmias and pacing." EP Europace 22, no. 3 (2020): 420–33. http://dx.doi.org/10.1093/europace/euz354.

Full text

Abstract:

Abstract Aims Cardiac arrhythmia services are a neglected field of cardiology in Africa. To provide comprehensive contemporary information on the access and use of cardiac arrhythmia services in Africa. Methods and results Data on human resources, drug availability, cardiac implantable electronic devices (CIED), and ablation procedures were sought from member countries of Pan African Society of Cardiology. Data were received from 23 out of 31 countries. In most countries, healthcare services are primarily supported by household incomes. Vitamin K antagonists (VKAs), digoxin, and amiodarone wer

APA, Harvard, Vancouver, ISO, and other styles

25

Kayamba, Violet, Wilbroad Mutale, Holly Cassell, Douglas Corbett Heimburger, and Xiao-Ou Shu. "Systematic Review of Cancer Research Output From Africa, With Zambia as an Example." JCO Global Oncology, no. 7 (May 2021): 802–10. http://dx.doi.org/10.1200/go.21.00079.

Full text

Abstract:

PURPOSE Cancer occurrence is increasing in Africa, although research has lagged. The objective of this review was to analyze cancer research outputs from Africa, with a particular focus on Zambia. METHODS We searched PubMed for published cancer-related articles from African countries. All articles reporting on cancer in Africa were considered. We conducted analyses to explore correlations between cancer research output and total population, gross domestic product, and new cancer cases recorded in 2020. For Zambia articles, we also analyzed cancer types and time trends. RESULTS A total of 48,48

APA, Harvard, Vancouver, ISO, and other styles

26

Berndt, Adele, and Jane P. Wayland. "Evaluating the readability of marketing research textbooks: an international comparison." Journal of International Education in Business 7, no. 1 (2014): 47–59. http://dx.doi.org/10.1108/jieb-03-2013-0009.

Full text

Abstract:

Purpose – Locally authored textbooks are used at tertiary South African institutions to assist in marketing research studies. The purpose of this paper is to investigate the readability of locally authored marketing research textbooks in South Africa and compare them with international (USA) texts. Design/methodology/approach – South African marketing research textbooks (authored locally) used at South African institutions were identified. Electronic versions of the textbooks were used and analysed using accepted readability formulae. The same procedure was used with texts produced in the USA

APA, Harvard, Vancouver, ISO, and other styles

27

Swales, Lee. "An Analysis of the Regulatory Environment Governing Hearsay Electronic Evidence in South Africa: Suggestions for Reform – Part One." Potchefstroom Electronic Law Journal 21 (March 27, 2018): 1–30. http://dx.doi.org/10.17159/1727-3781/2018/v21i0a2916.

Full text

Abstract:

The purpose of this two-part article is to examine the regulatory environment governing hearsay electronic evidence – with a view to providing clear, practical suggestions for regulatory reform in the context of the South African Law Reform Commission's most recent Discussion Paper on electronic evidence. Technology has become an indispensable part of modern life.Â In particular, the internet has facilitated new forms of business enterprise, and shifted basic communication norms.Â From a legal perspective, technology has presented several novel challenges for courts and practitioners to

APA, Harvard, Vancouver, ISO, and other styles

28

Moreroa, M. C., and M. B. Rapanyane. "A Growing Outcry of Gender-based Violence and Gender Inequality in South Africa : An Afrocentric Perspective." African Journal of Gender, Society and Development (formerly Journal of Gender, Information and Development in Africa) 10, no. 2 (2021): 7–24. http://dx.doi.org/10.31920/2634-3622/2021/v10n2a1.

Full text

Abstract:

The two practices of gender inequality and gender-based violence (GBV) are not peculiar to South Africans, as they also affect the African continent and the Global world in different shapes and forms. Whatever happens, when these two unacceptable behaviours and/ practices take form, women often end up being discriminated, sidelined and violated. Against this backdrop, this paper analyses the state of gender inequality and GBV in South Africa and finds common features which exist between the two. The central narrative of this paper is that the two notions are, at a very faster pace, becoming su

APA, Harvard, Vancouver, ISO, and other styles

29

Abiodun, Gbenga J., Babatope O. Adebiyi, Rita O. Abiodun, et al. "Investigating the Resurgence of Malaria Prevalence in South Africa Between 2015 and 2018: A Scoping Review." Open Public Health Journal 13, no. 1 (2020): 119–25. http://dx.doi.org/10.2174/1874944502013010119.

Full text

Abstract:

Background: Malaria remains a serious concern in most African countries, causing nearly one million deaths globally every year. This review aims to examine the extent and nature of the resurgence of malaria transmission in South Africa. Methods: Using the Arksey and O'Malley framework, this scoping review includes articles published between the years 2015 and 2018 on the resurgence of malaria occurrence in South Africa. Articles were searched between October 2018 to January 2019 using the following electronic databases: CINAHL, Pubmed, Science Direct and SCOPUS. Grey literature from Google Sch

APA, Harvard, Vancouver, ISO, and other styles

30

Adetokunboh, Olatunji O., Zinhle E. Mthombothi, Emanuel M. Dominic, Sylvie Djomba-Njankou, and Juliet R. C. Pulliam. "African based researchers’ output on models for the transmission dynamics of infectious diseases and public health interventions: A scoping review." PLOS ONE 16, no. 5 (2021): e0250086. http://dx.doi.org/10.1371/journal.pone.0250086.

Full text

Abstract:

Background Applied epidemiological models are used in predicting future trends of diseases, for the basic understanding of disease and health dynamics, and to improve the measurement of health indicators. Mapping the research outputs of epidemiological modelling studies concerned with transmission dynamics of infectious diseases and public health interventions in Africa will help to identify the areas with substantial levels of research activities, areas with gaps, and research output trends. Methods A scoping review of applied epidemiological models of infectious disease studies that involved

APA, Harvard, Vancouver, ISO, and other styles

31

Grímsson, Friđgeir, Alexandros Xafis, Frank H. Neumann, and Reinhard Zetter. "Pollen morphology of extant Winteraceae: a study allowing SEM-based affiliation of its fossil representatives." Acta Palaeobotanica 57, no. 2 (2017): 339–96. http://dx.doi.org/10.1515/acpa-2017-0015.

Full text

Abstract:

AbstractWhen applying high-resolution microscopy, the pollen morphology of extant taxa can be used to classify fossil pollen, that is, to address the latter in the established systematic-phylogenetic framework. Here we investigate tetrads and pollen features of 20 different Winteraceae species, most of them belonging to the early-diverging generic lineagesTasmannia,DrimysandPseudowintera. The tetrads and pollen are grouped into eleven pollen types based on diagnostic features observed by both light and scanning electron microscopy. The high-resolution scanning electron micrographs of recent ma

APA, Harvard, Vancouver, ISO, and other styles

32

de Bruiyn, H., W. A. Van Der Westhuizen, G. J. Beukes, and T. Q. Meyer. "Corkite from Aggeneys, Bushmanland, South Africa." Mineralogical Magazine 54, no. 377 (1990): 603–8. http://dx.doi.org/10.1180/minmag.1990.054.377.12.

Full text

Abstract:

AbstractCorkite associated with plumbojarosite and goethite occurs in gossan and iron-formation at Black Mountain and Broken Hill, Aggeneys. Electron microprobe analyses indicate that there are two groups of corkite present in the area; one with high Cu and low (PO4)3− and the other with low Cu and high (PO and the other with low Cu and high (PO4)3− contents. This can be explained in terms of the general formula contents. This can be explained in terms of the general formula AB2(XO4)2(OH)6, where the incorporation of divalent ions in the B site is accompanied by the exchange of trivalent anion

APA, Harvard, Vancouver, ISO, and other styles

33

Agaku, Israel Terungwa, Catherine O. Egbe, and Olalekan A. Ayo-Yusuf. "E-cigarette advertising exposure among South African adults in 2017: findings from a nationally representative cross-sectional survey." BMJ Open 11, no. 8 (2021): e048462. http://dx.doi.org/10.1136/bmjopen-2020-048462.

Full text

Abstract:

ObjectivesIn South Africa, the Control of Tobacco and Electronic Delivery Systems Bill seeks to regulate e-cigarettes as tobacco products, including their advertising, promotion and sponsorship. Population data on e-cigarette advertising in South Africa are needed to inform public health programs, practice and policy. We examined self-reported e-cigarette advertising exposure during 2017.DesignCross-sectional.SettingHousehold-based survey.Participants3063 individuals who participated in the 2017 South African Social Attitudes survey, a nationally representative, in-person survey of the non-ins

APA, Harvard, Vancouver, ISO, and other styles

34

Watney, Murdoch. "A South African perspective on mutual legal assistance and extradition in a globalized world." Potchefstroom Electronic Law Journal/Potchefstroomse Elektroniese Regsblad 15, no. 2 (2017): 291. http://dx.doi.org/10.17159/1727-3781/2012/v15i2a2489.

Full text

Abstract:

This contribution focuses on the modalities of mutual legal assistance and extradition from a South African perspective. The question is posed whether South Africa has succeeded to establish the required framework as a fully fledged member of the international community to make a positive contribution in the fields of mutual legal assistance and extradition subsequent to its international political isolation during the apartheid era. Although the international community derives substantial benefit from a borderless global world, it has as a result also to deal with the negative impact of globa

APA, Harvard, Vancouver, ISO, and other styles

35

Maran, Jean-Noel, Erich G. Rohwer, Johan P. Burger, and Lourens R. Botha. "Optics in South Africa." Optics and Photonics News 18, no. 1 (2007): 16. http://dx.doi.org/10.1364/opn.18.1.000016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Garratt, Olwyn. "Legal Information Services in South Africa." Legal Information Management 2, no. 1 (2002): 30–32. http://dx.doi.org/10.1017/s1472669600000980.

Full text

Abstract:

There are currently 18,456 attorneys and Candidate attorneys registered with the Law Society of South Afric and 5,941 registered law firms (CLE 2002). Data is not yet available regarding the size distribution of these law firms but a glance at any of the national legal directories will reveal that the majority of attorneys operate as solo practitioners or in association with a few colleagues. A large city practice will generally be well supplied with information resources and with assistance from a librarian or information professional. In a small practice, the information resources that the a

APA, Harvard, Vancouver, ISO, and other styles

37

Leece, AB, Anthony D. T. Kegley, Rodrigo S. Lacruz, et al. "The first hominin from the early Pleistocene paleocave of Haasgat, South Africa." PeerJ 4 (May 11, 2016): e2024. http://dx.doi.org/10.7717/peerj.2024.

Full text

Abstract:

Haasgat is a primate-rich fossil locality in the northeastern part of the Fossil Hominid Sites of South Africa UNESCO World Heritage Site. Here we report the first hominin identified from Haasgat, a partial maxillary molar (HGT 500), that was recovered from anex situcalcified sediment block sampled from the locality. Thein situfossil bearing deposits of the Haasgat paleokarstic deposits are estimated to date to slightly older than 1.95 Ma based on magnetobiostratigraphy. This places the hominin specimen at a critical time period in South Africa that marks the last occurrence ofAustralopithecus

APA, Harvard, Vancouver, ISO, and other styles

38

JOHNSON, NORMAN F., LUBOMÍR MASNER, LUCIANA MUSETTI, et al. "Revision of world species of the genus Heptascelio Kieffer (Hymenoptera: Platygastroidea, Platygastridae)." Zootaxa 1776, no. 1 (2008): 1. http://dx.doi.org/10.11646/zootaxa.1776.1.1.

Full text

Abstract:

The world species of the genus Heptascelio Kieffer (Hymenoptera: Platygastroidea, Platygastridae) are revised. The generic concept is expanded and the genus is redescribed. Eighteen species are recognized, of which only two were described previously: H. lugens Kieffer (Philippines) and H. striatosternus Narendran & Ramesh Babu (India, Sri Lanka, Nepal, Madagascar). Both species are redescribed, and H. punctisternus Narendran & Ramesh Babu is considered a junior synonym of H. striatosternus (new synonymy). The following species are described as new: H. albipes Masner, van Noort & Jo

APA, Harvard, Vancouver, ISO, and other styles

39

Ngoepe, Mpho. "Deployment of open source electronic content management software in national government departments in South Africa." Journal of Science & Technology Policy Management 6, no. 3 (2015): 190–205. http://dx.doi.org/10.1108/jstpm-05-2014-0021.

Full text

Abstract:

Purpose – This paper aims to report the deployment of open source electronic content management software in national government departments in South Africa, with the view to raise awareness of the free and open source software (FOSS) policy. Many countries including South Africa have developed policies that encourage the deployment of free and open source software (FOSS). Design/methodology/approach – The paper opted for qualitative data collected through interviews with four chief information officers, five information technology (IT) officials, two records managers from government department

APA, Harvard, Vancouver, ISO, and other styles

40

Ayogu, Melvin D., and Fiona Bayat. "ICT governance: South Africa." Telecommunications Policy 34, no. 4 (2010): 244–47. http://dx.doi.org/10.1016/j.telpol.2008.12.009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Kuyper, Brett, Carl J. Palmer, Casper Labuschagne, and Chris J. C. Reason. "Atmospheric bromoform at Cape Point, South Africa: an initial fixed-point data set on the African continent." Atmospheric Chemistry and Physics 18, no. 8 (2018): 5785–97. http://dx.doi.org/10.5194/acp-18-5785-2018.

Full text

Abstract:

Abstract. Bromoform mixing ratios in marine air were measured at Cape Point Global Atmospheric Watch Station, South Africa. This represents the first such bromoform data set recorded at this location. Manual daily measurements were made during a month-long field campaign (austral spring 2011) using a gas chromatograph-electron capture detector (GC-ECD) with a custom-built front end thermal desorption trap. The measured concentrations ranged between 4.4 and 64.6 (± 22.2 %) ppt with a mean of 24.8 ± 14.8 ppt. The highest mixing ratios recorded here occurred at, or shortly after, low tide. The di

APA, Harvard, Vancouver, ISO, and other styles

42

Bollig, Christoph, Andrew Forbes, and Thulani Dlamini. "Photonics in South Africa." Nature Photonics 1, no. 12 (2007): 673–75. http://dx.doi.org/10.1038/nphoton.2007.234.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Germine, Mark, and John H. Puffer. "Analytical transmission electron microscopy of amosite asbestos from South Africa." Archives of Environmental & Occupational Health 75, no. 1 (2019): 36–44. http://dx.doi.org/10.1080/19338244.2018.1556201.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Vaira, A. M., R. Kleynhans, and J. Hammond. "First Report of Freesia sneak virus Infecting Lachenalia Cultivars in South Africa." Plant Disease 91, no. 6 (2007): 770. http://dx.doi.org/10.1094/pdis-91-6-0770a.

Full text

Abstract:

Lachenalia (Lachenalia species, family Hyacinthaceae) is a bulbous ornamental plant endemic to southern Africa. In 1998, several lachenalia lines from ARC-Roodeplaat showing virus-like symptoms, and presumed to be infected with Ornithogalum mosaic virus (OrMV), were sent from South Africa under an APHIS permit for examination in Beltsville, MD. In addition to potyvirus-like particles, fine filamentous particles consistent with those of ophioviruses were observed with electron microscopy in some of the plant samples. Ophiovirus virions are filamentous nucleocapsids approximately 3 nm in diamete

APA, Harvard, Vancouver, ISO, and other styles

45

Beattie, Pauline, and Moses Bockarie. "THE NINTH FORUM OF THE EUROPEAN & DEVELOPING COUNTRIES CLINICAL TRIALS PARTNERSHIP." BMJ Global Health 4, Suppl 3 (2019): A1. http://dx.doi.org/10.1136/bmjgh-2019-edc.1.

Full text

Abstract:

The EDCTP community meets biennially to share research findings, plan new partnerships and collaborations, and discuss maximising impact from EDCTP-funded research. In 2018, the Ninth EDCTP Forum took place in Lisbon, Portugal, from 17–21 September 2018. The Lisbon meeting was the largest international conference focusing on clinical research on poverty-related infectious diseases in sub-Saharan Africa. It started with a strong commitment, from European and African EDCTP member countries, for a successor programme to EDCTP2 (2014–2024). It provided a platform for the presentation of project re

APA, Harvard, Vancouver, ISO, and other styles

46

Mbogning Fonkou, Maxime Descartes, Nicola Luigi Bragazzi, Emmanuel Kagning Tsinda, Yagai Bouba, Gideon Sadikiel Mmbando, and Jude Dzevela Kong. "COVID-19 Pandemic Related Research in Africa: Bibliometric Analysis of Scholarly Output, Collaborations and Scientific Leadership." International Journal of Environmental Research and Public Health 18, no. 14 (2021): 7273. http://dx.doi.org/10.3390/ijerph18147273.

Full text

Abstract:

Scientometrics enables scholars to assess and visualize emerging research trends and hot-spots in the scientific literature from a quantitative standpoint. In the last decades, Africa has nearly doubled its absolute count of scholarly output, even though its share in global knowledge production has dramatically decreased. The still-ongoing COVID-19 pandemic has profoundly impacted the way scholarly research is conducted, published, and disseminated. However, the COVID-19-related research focus, the scientific productivity, and the research collaborative network of African researchers during th

APA, Harvard, Vancouver, ISO, and other styles

47

Kruger, Martinette, and Melville Saayman. "A 3E typology of visitors at an electronic dance music festival." International Journal of Event and Festival Management 7, no. 3 (2016): 219–36. http://dx.doi.org/10.1108/ijefm-04-2016-0027.

Full text

Abstract:

Purpose The purpose of this paper is to determine the motives of visitors to an electronic dance music (EDM) festival in South Africa and clustered the participants according to these motives. Design/methodology/approach Based on a visitor survey at the oldest EDM festival in South Africa, namely, H2O, five motives for attending H2O were identified (fun and dance; novelty; excitement, group identity and entertainment; lifestyle and well-being; and travel and escape), while the results revealed three clusters of EDM festival visitors: enthusiasts, energizers and electros. The results demonstrat

APA, Harvard, Vancouver, ISO, and other styles

48

Saponara, Sergio, and Lucian Mihet-Popa. "Energy Storage Systems and Power Conversion Electronics for E-Transportation and Smart Grid." Energies 12, no. 4 (2019): 663. http://dx.doi.org/10.3390/en12040663.

Full text

Abstract:

The special issue “Energy Storage Systems and Power Conversion Electronics for E-Transportation and Smart Grid” on MDPI Energies presents 20 accepted papers, with authors from North and South America, Asia, Europe and Africa, related to the emerging trends in energy storage and power conversion electronic circuits and systems, with a specific focus on transportation electrification and on the evolution of the electric grid to a smart grid. An extensive exploitation of renewable energy sources is foreseen for smart grid as well as a close integration with the energy storage and recharging syste

APA, Harvard, Vancouver, ISO, and other styles

49

Joseph N. Mait. "Polaroid’s Experiment in South Africa." Optics and Photonics News 32, no. 1 (2021): 42. http://dx.doi.org/10.1364/opn.32.1.000042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Elías, Rodolfo, María Andrea Saracho-Bottero, and Carol Anne Simon. "Protocirrineris (Polychaeta:Cirratulidae) in South Africa and description of two new species." Revista de Biología Tropical 67, S5 (2019): S70—S80. http://dx.doi.org/10.15517/rbt.v67is5.38931.

Full text

Abstract:

Introduction: The knowledge of polychaetes in the subtropical region of Africa benefited from the activity of J. Day. However, 50 years after the publication of his Monograph of the Polychaeta of southern Africa, it is necessary to reconsider the identity of the Cirratulidae due to changes in the diagnostic characters and new approaches to the taxonomy of the group to corroborate the status of cosmopolitan species in this region. Objective: We hypothesize that biodiversity of multitentacular Cirratulidae polychaetes has been significantly underestimated in southern Africa. Methods: The present

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!