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Bioinformatics refers to the creation and advancement of algorithms, computational and statistical techniques and theories for solving formal and practical problems arising from the management and analysis of biological data. However, some parts of the African continent have not been properly sensitized to bio-scientific and computing field. Thus, there is the need for appropriate strategies of introducing the basic components of this emerging scientific field to part of the African populace...
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The paper examines current efforts and debates on regional and global institutional approaches to environmental displacement. The focus of this paper is particularly on how effective are regional institutional approaches. Regional initiatives promoting environment and climate change governance have complemented the establishment of global principles, and continue to be significant in examining and implementing those principles. The paper explores various criteria for choosing between...
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This paper reports on a survey of 358 respondents across 25 African countries into their usage of learning management systems. It concludes that while there are some enthusiastic advocates of such systems, the reality is that most African educators as yet have little knowledge about, or interest in, their usage. There remain very considerable infrastructural constraints to be overcome before they can be widely adopted for open and distance learning across the continent, and there is still...
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Thesis (Ph.D.), Faculty of Humanities, School of Education, University of the Witwatersrand, 2009
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Sinorhizobium meliloti and S. medicae are symbiotic nitrogen fixing bacteria in root nodules of forage legume alfalfa (Medicago sativa L.). In Morocco, alfalfa is usually grown in marginal soils of arid and semi-arid regions frequently affected by drought, extremes of temperature and soil pH, soil salinity and heavy metals, which affect biological nitrogen fixing ability of rhizobia and productivity of the host. This study examines phenotypic diversity for tolerance to the above stresses and...
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Health education can be defined as “any combination of learning experiences designed to facilitate voluntary actions conducive to health”1. Health education is therefore a planned activity, it is not haphazardly done. There are goals and means. Planning is the best predictor of success and “planning mistakes is the best predictor of failure”2. Health education is subsumed under the broader term “health promotion” which itself is said to be “a combination of educational and environmental...
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The aim of this study was to assess the knowledge, attitude, and practice of voluntary counseling and testing (VCT) for HIV in Mekelle, Tigray, Ethiopia with a view of suggesting measures for increased up takes in University students.Institution based cross-sectional study design was used.Respondents were selected by simple random sampling method.A total of 425 students were included.The data was collected from April 1-10, 2008 by trained health workers using a self administered structured...
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The current trend of harvesting water to supplement the agricultural productivity is associated with the expansion of schistosomiasis mansoni and other intestinal parasitic infections.Considering this, the present study was started with the objective of assessing the prevalence and intensity of S. mansoni infection and other intestinal helminth among different water source users.A total of 622 stool samples from school children of those families, which were using lands around...
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Purpose The under‐representation of women in the leadership of secondary schooling is a problem common to many developing countries, raising issues of social justice and sustainable development. It has its roots in societal understandings about leadership, the schooling and career aspirations of girls, the organizational characteristics of the education system, and the expectations and preparation of teachers for leadership positions. The purpose of this paper is to identify factors, both...
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Click to increase image sizeClick to decrease image size Acknowledgments Dr. Sandra Jowers-Barber, PhD, is an assistant professor of history at the University of the District of Columbia in Washington, D.C., coordinates the History Program and directs the Oral History Center at the University.
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To develop an animal model for cytomegalovirus (CMV)-induced sensorineural hearing loss.Guinea pig model.University of Utah otolaryngology research labs.Thirty-one Hartley guinea pig pups were divided into 4 groups. Group 1 pups were delivered from pregnant dams inoculated with 1 x 10(5) plaque-forming units (PFU) of guinea pig CMV (gpCMV). Group 2 and group 3 pups were delivered from pregnant dams inoculated with higher doses of 2 and 4 x 10(5) PFU of gpCMV, respectively. Group 4 pups, the...