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Search Results: 1 - 10 of 461453 matches for " A. Schoeman "
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The dilemma of the failed state thesis in post-9/11 world affairs
A. Schoeman
Koers : Bulletin for Christian Scholarship , 2008, DOI: 10.4102/koers.v73i4.182
Abstract: The 9/11 terrorist attacks shifted the emphasis of failed states as just a regional humanitarian problem to one that could present a global security threat. In this regard US policymakers, especially, identified failed states as possible terrorist threats. However, this renewed attention to the study of state failure has exposed a number of theoretical weaknesses in this body of literature. The latter could mainly be ascribed to the way in which US policy makers have often used generalised definitions of failed states and then applied it to states that are perceived as threats. Another problem is the fact that government sponsored research institutes and think tanks are operating independently from university academics. This situation has caused theoretical confusion as conditions in failed states are often interpreted differently resulting in the development of a number of opposing theories, definitions and confusing classification models. The body of literature is further accused of endorsing a “Weberian” definition (ideal type) of the state against which degrees of “failure” in non-complying states are measured. This article will investigate the extent of these theoretical weaknesses and expose the dangers of following an approach that seem to misinterpret the political realities of developing states (often regarded as failed) – this despite having an extensive popular following. It will further focus on possible alternative approaches – or the formulation of ideas that are better suited and relevant to the often unique internal political, social and economic dynamics of unstable states.
Diabetes guidelines and clinical practice: is there a gap? The South African cohort of the International Diabetes Management Practices Study
A Amod, W Riback, HS Schoeman
Journal of Endocrinology, Metabolism and Diabetes of South Africa , 2012,
Abstract: Objectives: The objective of this survey was to determine the therapeutic management of patients with diabetes in the South African private healthcare environment. Design: The International Diabetes Management Practices Study is an international multicentre and observational study. In this paper, the local South African data from the cross-sectional cohort study are discussed. Setting: South African healthcare providers who were involved in the management of patients with diabetes. Subjects: Subjects included male and female adult patients who were diagnosed with type 1 or type 2 diabetes mellitus and who consulted their healthcare provider during a specified period of two weeks. Outcome measures: Information on patient demographic and socio-economic profiles, relevant medical histories, data on previous and concomitant antidiabetic treatments, glycaemic status, patient education levels and the impact of diabetes on absenteeism and hospitalisation was collected. Results: A total of 899 patients from 54 healthcare centres in South Africa participated. The mean age of patients in the study was 53.35 ± 14.47 years. The duration of diabetes was longer in type 1 diabetic patients. Of the type 2 diabetic patients, 46.4% were on oral antidiabetic monotherapy and 44.1% on two oral medications. Metformin was the most commonly prescribed oral medication. Of the 242 patients with type 2 diabetes on insulin and oral combination, 175 were on one oral medication combined with insulin therapy. The mean haemoglobin A1c (HbA1c) of study participants was 8.2%. Conclusion: These data demonstrate that in accordance with current global findings, the glycaemic control of the majority of a cohort of patients with diabetes managed in the private healthcare sector in South Africa was suboptimal when assessed according to HbA1c levels.
Malnutrition in paediatric oncology patients: Malnutrition at the diagnosis of cancer is not an uncommon finding in childhood cancer in the developing world
J Schoeman, A Dannhauser, M Kruger
Continuing Medical Education , 2010,
Abstract:
Modeling of Banking Profit via Return-on-Assets and Return-on-Equity
Prof. Mark A. Petersen,Dr. Ilse Schoeman
Lecture Notes in Engineering and Computer Science , 2008,
Abstract:
New records of 43 spider species from the Mountain Zebra National Park, South Africa (Arachnida: Araneae)
A.S. Dippenaar-Schoeman
Koedoe : African Protected Area Conservation and Science , 2006, DOI: 10.4102/koedoe.v49i2.113
Abstract: This study forms part of the South African National Survey of Arachnida (SANSA), initiated in 1997 with the main aim to create an inventory of the arachnid fauna of South Africa (Dippenaar-Schoeman & Craemer 2000). One of the objectives of SANSA is to assess the number of arachnid species presently protected in conserved areas in the country. Check lists of spiders are now available for three national parks, three nature reserves and a conservancy. These areas include: Mountain Zebra National Park (Dippenaar-Schoeman 1988); Karoo National Park (Dippenaar-Schoeman et al. 1999); Kruger National Park (Dippenaar- Schoeman & Leroy 2002); Roodeplaatdam Nature Reserve (Dippenaar-Schoeman et al. 1989); Makelali Nature Reserve (Whitmore et al. 2001, 2002); Swartberg Nature Reserve (Dippenaar-Schoeman et al. 2005); and the Soutpansberg Conservancy (Foord et al. 2002).
Phytophagous stink bugs (Hemiptera: Pentatomidae; Coreidae) associated with macadamia in South Africa  [PDF]
Pieter Schalk Schoeman
Open Journal of Animal Sciences (OJAS) , 2013, DOI: 10.4236/ojas.2013.33027
Abstract:

Bathycoelia natalicola (Distant) is the dominant stink bug on macadamias in South Africa. This insect occurred throughout the year but was particularly numerous during summer months when developing macadamia nuts were available on the trees. The presence of nymphs and adults throughout the winter as well as the absence of seasonal polyphenism indicates that true diapause may not occur in areas with mild subtropical climates. After harvest, during winter when no nuts were available, the winter stink bug complex consisting of Nezara pallidocons-persa Stal, Nezara prunasis Dallas and Atelocera raptoria Germarbecame was more numerous. The Nezara species do not breed in macadamias indicating that macadamia is possibly not a preferred host plant. Few individuals of the polyphagous pest, Pseudotheraptus wayi brown were recovered with the branch shaking technique suggesting that this technique is possibly not suitable to monitor for this insect. Considerable P. wayi damage levels were however, detected by dissecting prematurely aborted nuts.

Aseasonal reproduction in the Hottentot golden mole, Amblysomus hottentotus (Afrosoricida: Chrysochloridae) from KwaZulu-Natal, South Africa
S. Schoeman,N.C. Bennett,M. van der Merwe,A.S. Schoeman
African Zoology , 2011,
Abstract: The Hottentot golden mole,Amblysomus hottentotus, is a subterranean mammal that exhibits aseasonal breeding. Reproductive organs of golden moles that had been killed on a monthly basis over a period of one year were examined. Reproductive tract measurements and body mass of each individual was measured and ovarian and testicular histology investigated. Body mass of males was significantly higher than that of females. Ovarian and testicular volume as well as seminiferous tubule diameter did not vary statistically on a seasonal basis. Graafian follicles and corpora lutea were present in the ovaries for nine months of the year, suggesting follicles and corpora lutea were present in the ovaries for nine months of the year, suggesting that ovulation can occur in any month. Despite the lack of seasonality, there appears to be enhanced follicular development during the warm, wet summer months. The litters tend to be small, mean ± S.E.: 2.0 ± 0.1 (range 1.0–3.0).
A check list of the spiders of the Kruger National Park, South Africa (Arachnida: Araneae)
A.S. Dippenaar-Schoeman,A. Leroy
Koedoe : African Protected Area Conservation and Science , 2003, DOI: 10.4102/koedoe.v46i1.40
Abstract: As part of the South African National Survey of Arachnida (SANSA), projects are underway to determine the biodiversity of arachnids present in protected areas in South Africa. Spiders have been collected over a period of 16 years from the Kruger National Park, South Africa. A check list is provided consisting of 152 species, 116 genera and 40 families. This represents about 7.6 % of the total known South African spider fauna. Of the 152 species, 103 are new records for the park. The ground dwelling spiders comprise 58 species from 25 families. Of these, 21 % are web dwellers and 62 % free living, while 17 % live in burrows. From the plant layer, 94 species have been collected of which 53 % were web builders and 47 % free living wandering spiders.
A revision of the Afrotropical species of the genus Tibellus Simon (Araneae: Philodromidae)
A. Van den Berg,A.S. Dippenaar-Schoeman
Koedoe : African Protected Area Conservation and Science , 1994, DOI: 10.4102/koedoe.v37i1.327
Abstract: The Afrotropical species of the genus Tibellus Simon, 1875, are revised. Of the 10 previously recognised species of long-bodied grss spiders from this region, eight are redescribed and figured. Two species, T. punctifasciatus Strand, 1906, and T. robustus Simon, 1886, are considered nomina dubia. Five new species, T. cobusi, T. gerhardi, T. nimbaensis, T. somaliensis and T. sunetae, are described and three previously recognised subspecies of T. vossioni Simon, 1884, namely T. v. armatus Lessert, 1928, T. v. flavipes Caporiacco, 1941, and T. v. minor Lessert, 1919, are given species status. The genus Tibellinus Simon, 1910, is a junior synonym of Tibellus. Tibellinus australis is transferred to the genus Tibellus. The males of T. armatus stat. nov. and T. hollidayi Lawrence, 1952, are described for the first time. A key to 17 recognised species is given. Distributional data are provided for all species.
Correlated Genetic and Ecological Diversification in a Widespread Southern African Horseshoe Bat
Samantha Stoffberg, M. Corrie Schoeman, Conrad A. Matthee
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0031946
Abstract: The analysis of molecular data within a historical biogeographical framework, coupled with ecological characteristics can provide insight into the processes driving diversification. Here we assess the genetic and ecological diversity within a widespread horseshoe bat Rhinolophus clivosus sensu lato with specific emphasis on the southern African representatives which, although not currently recognized, were previously described as a separate species R. geoffroyi comprising four subspecies. Sequence divergence estimates of the mtDNA control region show that the southern African representatives of R. clivosus s.l. are as distinct from samples further north in Africa than they are from R. ferrumequinum, the sister-species to R. clivosus. Within South Africa, five genetically supported geographic groups exist and these groups are corroborated by echolocation and wing morphology data. The groups loosely correspond to the distributions of the previously defined subspecies and Maxent modelling shows a strong correlation between the detected groups and ecoregions. Based on molecular clock calibrations, it is evident that climatic cycling and related vegetation changes during the Quaternary may have facilitated diversification both genetically and ecologically.
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