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Search Results: 1 - 10 of 234 matches for " Prescott Musaba Akawa "
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Rediscovery of Glauconycteris superba Hayman, 1939 (Chiroptera: Vespertilionidae) after 40 years at Mbiye Island, Democratic Republic of the Congo
Guy-Crispin Gembu Tungaluna,Victor Van Cakenberghe,Prescott Musaba Akawa,Benjamin Dudu Akaibe
European Journal of Taxonomy , 2013, DOI: 10.5852/ejt.2013.42
Abstract: We report the rediscovery of the Pied Butterfly Bat, Glauconycteris superba Hayman, 1939, 40 years after this species was last recorded. The new specimen from Mbiye Island, Democratic Republic of the Congo, is compared with the type specimens of G. s. superba and G. superba sheila Hayman, 1947 and a specimen from Matonguiné, Ivory Coast. The variation in the striking colouration of the pelage as well as in morphometric data is considered to be individual rather than geographic variation and we tentatively regard G. s. sheila as a synonym of the nominate form. Despite the wide distribution of this species in the tropical forest zone of West and Central Africa, only four specimens from four localities are known to date, which might indicate very specific habitat preferences. Contemporary land cover information around historic collection sites shows degraded landscapes. Given the highly uncertain area of occupancy of this species, we suggest changing the status of G. superba in the IUCN Red List of Threatened Species from “Least Concern” to “Data Deficient”.
A Sustainability Analysis of Namibian Marine Fishery  [PDF]
Twalinohamba Akawa, Festus Panduleni Nashima
Journal of Human Resource and Sustainability Studies (JHRSS) , 2013, DOI: 10.4236/jhrss.2013.11001
Abstract: Achieving sustainable development is a major challenge, especially among developing fishing nations which depend more on fisheries resources as a source of food and income. In Namibia, a developing fishing nation, many marine fishery resources were overfished pre-independence. Thus, measures implemented post-independence were aimed at sustainable utilization of fishery resources. This paper gives a sustainability analysis of the Namibian marine fishing subsector using broad aspects of sustainable development such as ecological, socio-economic, and technological aspect. Each aspect is represented by the following indicators: Mean Trophic Levels of landings, value of landings, contribution to state revenues and Gross Domestic Product as well as type of fishing gear. Indicators were computed using secondary data obtained from the Ministry of Fisheries for the period, 1990-2007. Trends of the ecological indicator suggest an improvement in ecosystem state, which could have led to increasing value of landings and contribution to GDP. Generally, indicators used showed that fishing impacts on the ecosystem state are less and economic performance of the sub-sector was good; especially notable is the increasing number of vessels in the hake fishery relative to increase in landings. While there are signs, it is difficult to conclude with absolute certainty whether the development of the Namibian marine fishing sub-sector was sustainable.
Run of River Bulk Hydroelectric Generation from the Congo River without a Conventional Dam  [PDF]
Thomas J. Hammons, Pathmanathan Naidoo, Lawrence Musaba
Natural Resources (NR) , 2011, DOI: 10.4236/nr.2011.21003
Abstract: The paper discusses harvesting the Congo River for bulk hydroelectric generation based on run of river, low head generation technology, as employed at the existing Inga 2 power station in the Democratic Republic of Congo. The evolutionary approach builds on existing infrastructure.The results show that the footprint is much smaller than that which employs a conventional dam. The environmental impact is minimized. These collectively will contribute to lower capital costs. In summary, 10,000 cm³/sec of constant river flow will produce 5,000 MW of base power. On average, the constant recorded flow of the river is 30,000 cm³/sec and a total of 15,000 MW of base power generation is possible.
Alu elements: know the SINEs
Prescott Deininger
Genome Biology , 2011, DOI: 10.1186/gb-2011-12-12-236
Abstract: Alu elements represent one of the most successful of all mobile elements, having a copy number well in excess of 1 million copies in the human genome [1] (contributing almost 11% of the human genome). They belong to a class of retroelements termed SINEs (short interspersed elements) and are primate specific. These elements are non-autonomous, in that they acquire trans-acting factors for their amplification from the only active family of autonomous human retroelements: LINE-1 [2].Although active at higher levels earlier in primate evolution, Alu elements continue to insert in modern humans, including somatic insertion events, creating genetic diversity and contributing to disease through insertional mutagenesis. They are also a major factor contributing to non-allelic homologous recombination events causing copy number variation and disease. Alu elements code for low levels of RNA polymerase III transcribed RNAs that contribute to retrotransposition. However, the ubiquitous presence of Alu elements throughout the human genome has led to their presence in a large number of genes and their transcripts. Many individual Alu elements have wide-ranging influences on gene expression, including influences on polyadenylation [3,4], splicing [5-7] and ADAR (adenosine deaminase that acts on RNA) editing [8-10].This review focuses heavily on studies generated as a result of the advent of high-throughput genomics providing huge datasets of genome sequences, and data on gene expression and epigenetics. These data provide tremendous insight into the role of Alu elements in genetic instability and genome evolution, as well as their many impacts on expression of the genes in their vicinity. These roles then influence normal cellular health and function, as well as having a broad array of impacts on human health.The general structure of an Alu element is presented in Figure 1a. The body of the Alu element is about 280 bases in length, formed from two diverged dimers, ancestrally deri
A Review of 'Gendered Spaces and Digital Discourse: Framing Women’s Relationship with the Internet'. Author: Cindy Royal.
Julie Prescott
International Journal of Gender, Science and Technology , 2011,
Abstract:
Veterans in an unnamed war: Hidden abuse, truth-telling, resistance and recovery
Prescott Laura
Temida , 2004, DOI: 10.2298/tem0402013p
Abstract: The author is the president and founder of Sister Witness International Inc a new organization of formerly institutionalized women, girls, and their allies. She is also a recovering addict, psychiatric expatient, and survivor of childhood abuse. The article is an edited version of a keynote address given at the 2nd annual convention of the International Society of Psychiatric Mental Health Nurses in Miami, Florida, on April 28, 2000.
Guidance for Learning of Motivational Interviewing: A Resource for Trainers
David Prescott
Motivational Interviewing : Training, Research, Implementation, Practice , 2012, DOI: 10.5195/mitrip.2012.17
Abstract:
Allergy takes its toll: the role of toll-like receptors in allergy pathogenesis
Susan L Prescott
World Allergy Organization Journal , 2008, DOI: 10.1097/wox.0b013e3181625d9f
Abstract:
Ethics of primate use
M. J. Prescott
Advances in Science and Research (ASR) , 2010, DOI: 10.5194/asr-5-11-2010
Abstract: This article provides an overview of the ethical issues raised by the use of non-human primates (NHPs) in research involving scientific procedures which may cause pain, suffering, distress or lasting harm. It is not an exhaustive review of the literature and views on this subject, and it does not present any conclusions about the moral acceptability or otherwise of NHP research. Rather the aim has been to identify the ethical issues involved and to provide guidance on how these might be addressed, in particular by carefully examining the scientific rationale for NHP use, implementing fully the 3Rs principle of Russell and Burch (1959) and applying a robust "harm-benefit assessment" to research proposals involving NHPs.
Segregation in a Male-Dominated Industry: Women Working in the Computer Games Industry
Julie Prescott,Jan Bogg
International Journal of Gender, Science and Technology , 2011,
Abstract: This paper focuses on occupational segregation within the games industry in terms of gender role identity and differences between female game workers in relation to their attitudes towards women’s career barriers and their own career progression and promotion. Women are both underrepresented in the games industry workforce as a whole and in certain roles within the industry. Women in the industry tend to be concentrated in more traditionally ‘feminine’ roles such as marketing and administration. Women are underrepresented in core creation and development roles, such as coders, designers and artists; roles that tend to require technical skill and knowledge. Using data extracted from a large study offemale game workers, this study adds to the scarcity of research into the area of women working in the computer games industry. It would appear that occupational segregation still persists in this relatively new, male dominated industry. Findings suggest gender role identity and attitudes are important issues when looking at segregation within the industry. Implications for future research on the games industry are discussed.
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