Your search
Results 23,625 resources
-
For the winter-rainfall region of South Africa, the frequency of drought is predicted to increase over the next 100 years, with dire consequences for the vegetation of this biodiversity hotspot. We analysed historical 20th century rainfall records for six rainfall stations within the succulent karoo biome to determine if the signal of increasing drought frequency is already apparent, and whether mean annual rainfall is decreasing. We found no evidence for a decrease either in mean annual...
-
For the winter-rainfall region of South Africa, the frequency of drought is predicted to increase over the next 100 years, with dire consequences for the vegetation of this biodiversity hotspot. We analysed historical 20th century rainfall records for six rainfall stations within the succulent karoo biome to determine if the signal of increasing drought frequency is already apparent, and whether mean annual rainfall is decreasing. We found no evidence for a decrease either in mean annual...
-
For the winter-rainfall region of South Africa, the frequency of drought is predicted to increase over the next 100 years, with dire consequences for the vegetation of this biodiversity hotspot. We analysed historical 20th century rainfall records for six rainfall stations within the succulent karoo biome to determine if the signal of increasing drought frequency is already apparent, and whether mean annual rainfall is decreasing. We found no evidence for a decrease either in mean annual...
-
For the winter-rainfall region of South Africa, the frequency of drought is predicted to increase over the next 100 years, with dire consequences for the vegetation of this biodiversity hotspot. We analysed historical 20th century rainfall records for six rainfall stations within the succulent karoo biome to determine if the signal of increasing drought frequency is already apparent, and whether mean annual rainfall is decreasing. We found no evidence for a decrease either in mean annual...
-
T. Schlüter 2008. Geological Atlas of Africa, with Notes on Stratigraphy, Tectonics, Economic Geology, Geohazards, Geosites and Geoscientific Education of Each Country, 2nd ed. xi + 307 pp. + CD-ROM. Berlin, Heidelberg, New York: Springer-Verlag. Price Euros 169.95, SFr 282.50, US $249.00, £134.50 (hard covers). ISBN 9783 540 76324 6. - Volume 147 Issue 2
-
Human adaptation and response to drought is primarily through evasion or endurance. A review of historical agricultural practices in southern Africa demonstrates evidence of drought evasion response strategies in well-established transhumance routes, where herders move livestock on a seasonal basis in order to exploit resources subject to different climatic regimes. European settlers to the arid regions of South Africa quickly recognised the necessity of these evasion options to survive...
-
It is recognized that adequate intake of dietary fiber tends to reduce the risk of developing chronic diseases such as diabetes, obesity, colon cancer and heart disease.This study was carried out to assess the adequacy of dietary fiber intake of 12 male and 12 female volunteer undergraduates of Ibadan University.Food consumption survey was by the direct weighing method for three days.Representative samples of the diets were analysed for moisture and fiber content using the standard methods...
-
This report presents a retrospective evaluation of the school-based malaria treatment programme implemented in Mangochi district, Malawi. The teachers were trained to identify and treat children suffering from malaria. The evaluation was undertaken using the school administrative records. The intervention and comparison schools were matched using propensity score matching. The impact was assessed using generalised linear modelling of family Poisson and also Kaplan–Meier for survival...
-
The objective of this study was to identify microbial pathogens associated with bacteriuria and UTI in patients with indwelling urethral catheters and determine their susceptibility patterns to commonly used antimicrobial agents in our institution.Catheter urine and catheter tip specimens of all the patients were analyzed by microscopy and culture on Blood, MacConkey and CLED agar plates.Pure colonies of isolated organism were biochemically characterized and disc diffusion antibiotic...
-
Climate change is expected to intensify existing problems and create new combinations of risks, particularly in Africa, where there is widespread poverty and dependence on the natural environment.Accordingly, there is a growing need for proactive adaptation to climate change risks.In order to achieve this, the requisite competence needs to be developed on the use and interpretation of climate information to support informed decisions.The present paper assesses the extent to which climate...
-
Libyan in-service teachers of English with poor INSET provision and low-resourced school environments stand to gain a great deal from Internet-based Continuing Professional Development (I-CPD). The aim of this exploratory and descriptive study was threefold: first, to understand current practices and conditions pertaining to CPD provision for Libyan teachers; second, to explore the potential of Internet-based CPD for Libyan teachers through a bottom-up informal approach; third, to develop an...
-
Given the lack of information concerning the role of Chlamydia trachomatis in male infertility, it has become imperative to analyse the quality of semen of male with seroevidence of antibody to Chlamydia trachomatis infection.A total of 156 male patients attending the Human Reproduction Research Programme/ Invitro Fertililzation Centre of University of Benin Teaching Hospital (UBTH) Benin City, Edo state were enrolled into this study.Standard semen analysis and serological investigation of...
-
Objective: To investigate the oral health profile of otherwise healthy primary and post -primary school children in Uselu, Benin-city.Methodology: All consecutive primary and post-primary school children accompanying siblings and/or friends to access dental care at Mount Gilead hospital, Uselu between June 1, 2008 and May 31, 2009 and for who consents were obtained from parents or guardians on their behalf were recruited.Age, sex, and the gingival index were noted for these children.The...
-
This study examined longitudinal patterns of initiating substance use and sexual intercourse among a sample of 1,143 high school students from a low-income township in Cape Town, South Africa. Longitudinal data on lifetime incidence of sexual intercourse and alcohol and marijuana use were collected semiannually from 2004 to 2006. Latent transition analysis (LTA) was used to test competing models of transitions to these behaviors. Participants were more likely to move from no risk behavior to...
-
Read the full review for this Faculty Opinions recommended article: Out of Africa and into an ice age: on the role of global climate change in the late Pleistocene migration of early modern humans out of Africa.
-
This book is a must-read for anyone who cares about the future of higher education in diverse democracies. A penetrating exploration of affirmative action's continued place in 21st-century higher education, The Next Twenty-five Years assembles the viewpoints of some of the most influential scholars, educators, university leaders, and public officials. Its comparative essays range the political spectrum and debates in two nations to survey the legal, political, social, economic, and moral...