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Sample records for african energy programme

  1. Rotavirus vaccination within the South African Expanded Programme on Immunisation.

    PubMed

    Seheri, L Mapaseka; Page, Nicola A; Mawela, Mothahadini P B; Mphahlele, M Jeffrey; Steele, A Duncan

    2012-09-07

    Diarrhoeal diseases are ranked the third major cause of childhood mortality in South African children less than 5 years, where the majority of deaths are among black children. Acute severe dehydrating rotavirus diarrhoea remains an important contributor towards childhood mortality and morbidity and has been well documented in South Africa. As the preventive strategy to control rotavirus diarrhoea, South Africa became the first country in the WHO African Region to adopt the rotavirus vaccine in the national childhood immunisation programme in August 2009. The rotavirus vaccine in use, Rotarix, GSK Biologicals, is given at 6 and 14 weeks of age, along with other vaccines as part of Expanded Programme on Immunisation (EPI). Studies which facilitated the introduction of rotavirus vaccine in South Africa included the burden of rotavirus disease and strain surveillance, economic burden of rotavirus infection and clinical trials to assess the safety and efficacy of vaccine candidates. This paper reviews the epidemiology of rotavirus in South Africa, outlines some of the steps followed to introduce rotavirus vaccine in the EPI, and highlights the early positive impact of vaccination in reducing the rotavirus burden of disease based on the post-marketing surveillance studies at Dr George Mukhari hospital, a sentinel site at University of Limpopo teaching hospital in Pretoria, South Africa, which has conducted rotavirus surveillance for >20 years.

  2. Developing a Cancer Prevention Programme for African-American Daughters and Mothers

    ERIC Educational Resources Information Center

    Annang, Lucy; Spencer, S. Melinda; Jackson, Dawnyéa; Rosemond, Tiara N.; Best, Alicia L.; Williams, Leah R.; Carlos, Bethany

    2015-01-01

    Objective: To describe how nominal group technique was used to inform the development of a breast and cervical cancer awareness programme for African-American adult daughters and mothers. Design: A qualitative approach using nominal group technique. Setting: A mid-sized city in the Southern USA. Method: Nominal group technique was used with 30…

  3. A Critical Evaluation of Training within the South African National Public Works Programme

    ERIC Educational Resources Information Center

    Mccord, Anna

    2005-01-01

    This article explores the ability of the training and work experience offered under public works programmes to promote employment in South Africa. Public works are a key component of South African labour market policy and are ascribed considerable potential in terms of addressing the core challenge of unemployment. However, despite this policy…

  4. The Lifecycle of a South African Non-governmental Organisation: Primary Science Programme, 1983-1999.

    ERIC Educational Resources Information Center

    Harvey, Stephen; Peacock, Alan

    2001-01-01

    Traces the lifecycle of the Primary Science Programme (PSP), 1983-99, a representative South African nongovernmental organization. Shows how the social and economic environment shaped PSP development and demise. Highlights tensions between quality versus quantity, subject versus holistic focus, and participatory versus authoritarian management…

  5. "Views from the Nano Edge": Women on Doctoral Preparation Programmes in Selected African Contexts

    ERIC Educational Resources Information Center

    Williamson, Charmaine

    2016-01-01

    The study explored the conceptual views of "critical mass", alongside micro experiences, of women, at a practice level, on a doctoral preparation programme which was implemented within the South African Development Community (SADC) and Ethiopian contexts. At the strategising level of policies, insufficient attention has been paid to the…

  6. Establishment of a cancer surveillance programme: the South African experience

    PubMed Central

    Singh, Elvira; Ruff, Paul; Babb, Chantal; Sengayi, Mazvita; Beery, Moira; Khoali, Lerato; Kellett, Patricia; Underwood, J Michael

    2015-01-01

    Cancer is projected to become a leading cause of morbidity and mortality in low-income and middle-income countries in the future. However, cancer incidence in South Africa is largely under-reported because of a lack of nationwide cancer surveillance networks. We describe present cancer surveillance activities in South Africa, and use the International Agency for Research on Cancer framework to propose the development of four population-based cancer registries in South Africa. These registries will represent the ethnic and geographical diversity of the country. We also provide an update on a cancer surveillance pilot programme in the Ekurhuleni Metropolitan District, and the successes and challenges in the implementation of the IARC framework in a local context. We examine the development of a comprehensive cancer surveillance system in a middle-income country, which might serve to assist other countries in establishing population-based cancer registries in a resource-constrained environment. PMID:26248849

  7. African horse sickness in Portugal: a successful eradication programme.

    PubMed Central

    Portas, M.; Boinas, F. S.; Oliveira E Sousa, J.; Rawlings, P.

    1999-01-01

    African horse sickness (AHS) was diagnosed for the first time in southern Portugal in autumn 1989, following outbreaks in Spain. AHS virus presence was confirmed by virus isolation and serotyping. An eradication campaign with four sanitary zones was set up by Central Veterinary Services in close collaboration with private organizations. Vaccination began on 6 October. In February 1990, vaccination was extended to all Portuguese equines (170000 animals). There were 137 outbreaks on 104 farms: 206 of the equidae present died (16%) or were slaughtered (14%); 81.5% were horses, 10.7% were donkeys and 7.8% were mules. Clinical AHS occurred more frequently in horses than donkeys and mules. In the vaccinated population, 82 animals (62.2% horses and 37.8% mules and donkeys), died or were slaughtered due to suspected or confirmed AHS. One year after ending vaccination, December 1991, Portugal was declared free of AHS. Cost of eradication was US$1955513 (US$11.5/Portuguese equine). PMID:10579455

  8. Disease Control in Wildlife: Evaluating a Test and Cull Programme for Bovine Tuberculosis in African Buffalo.

    PubMed

    le Roex, N; Cooper, D; van Helden, P D; Hoal, E G; Jolles, A E

    2016-12-01

    Providing an evidence base for wildlife population management is difficult, due to limited opportunities for experimentation and study replication at the population level. We utilized an opportunity to assess the outcome of a test and cull programme aimed at limiting the spread of Mycobacterium bovis in African buffalo. Buffalo act as reservoirs of M. bovis, the causative agent of bovine tuberculosis (BTB), which can have major economic, ecological and public health impacts through the risk of infection to other wildlife species, livestock and surrounding communities. BTB prevalence data were collected in conjunction with disease control operations in Hluhluwe-iMfolozi Park, South Africa, from 1999 to 2006. A total of 4733 buffalo (250-950 per year) were tested for BTB using the single comparative intradermal tuberculin (SCIT) test, with BTB-positive animals culled, and negative animals released. BTB prevalence was spatially and temporally variable, ranging from 2.3% to 54.7%. Geographic area was a strong predictor of BTB transmission in HiP, owing to relatively stable herds and home ranges. Herds experiencing more intensive and frequent captures showed reduced per capita disease transmission risk and less increase in herd prevalence over time. Disease hot spots did not expand spatially over time, and BTB prevalence in all but the hot spot areas was maintained between 10% and 15% throughout the study period. Our data suggest that HiP's test and cull programme was effective at reducing BTB transmission in buffalo, with capture effort and interval found to be the crucial components of the programme. The programme was thus successful with respect to the original goals; however, there are additional factors that should be considered in future cost/benefit analyses and decision-making. These findings may be utilized and expanded in future collaborative work between wildlife managers, veterinarians and scientists, to optimize wildlife disease control programmes and

  9. Trials and tribulations of an African-led research and capacity development programme: the case for EDCTP investments.

    PubMed

    Zumla, A; Huggett, J; Dheda, K; Green, C; Kapata, N; Mwaba, P

    2010-04-01

    We describe the initiation and establishment of The University of Zambia - University College London Medical School (UNZA-UCLMS) Research and Training Project, an entirely African scientist-led, south-north partnership. In its 16 year existence, the project, by successfully obtaining competitive grant funding, has transformed itself into one of Africa's most productive African-led R&D programmes with training and visible research outputs. The project serves as a role model and now networks R&D and training activities with six southern African (10 institutions) and six European countries. This project case study illustrates that deep commitment is essential for success and that the factors which facilitate success in R&D in Africa need to be evaluated. The long-term prospects for sustaining the UNZA-UCLMS Project appear bright and are dependent on several factors: the ability to retain trained African scientists; obtaining continued competitive or donor grant funding support; and serious investment by the African governments involved. The recent 255 million Euros EDCTP investment in sub-Saharan Africa through south-north partnerships is expected to enhance existing African-led R&D programmes. African governments and scientists must rise to the challenge.

  10. Service Quality and Students' Satisfaction with the Professional Teacher Development Programmes by Distance Mode in a South African University

    ERIC Educational Resources Information Center

    Oduaran, A. B.

    2011-01-01

    This article reports on the relationship between seven factors that described dimensions of education service quality and overall service quality on one hand, and students' satisfaction with the professional teacher development programmes by distance mode in a South African University on the other. We sought to find out whether students enrolled…

  11. First-Year Students' Perceptions of Extended National Diploma Programmes: The Case of a Comprehensive South African University (2012)

    ERIC Educational Resources Information Center

    Mavunga, George; Cachalia, Fahmida

    2014-01-01

    This study compared how the cohort of extended diploma students enrolled at a comprehensive South African university in 2012 perceived the programmes for which they were enrolled at the beginning of their first year and towards the end of the year. Data were gathered using questionnaires and semi-structured interviews involving students enrolled…

  12. South African CSP projects under the REIPPP programme - Requirements, challenges and opportunities

    NASA Astrophysics Data System (ADS)

    Relancio, Javier; Cuellar, Alberto; Walker, Gregg; Ettmayr, Chris

    2016-05-01

    Thus far seven Concentrated Solar Power (CSP) projects have been awarded under the Renewable Energy Independent Power Producer Procurement Programme (REIPPPP), totalling 600MW: one project is in operation, four under construction and two on their way to financial close. This provides an excellent opportunity for analysis of key features of the projects that have contributed to or detracted from the programme's success. The paper draws from Mott MacDonald's involvement as Technical Advisor on the seven CSP projects that have been successful under the REIPPPP to date as well as other global CSP developments. It presents how various programme requirements have affected the implementation of projects, such as the technical requirements, time of day tariff structure, economic development requirements and the renewable energy grid code. The increasingly competitive tariffs offered have encouraged developers to investigate efficiency maximising project configurations and cost saving mechanisms, as well as featuring state of the art technology in their proposals. The paper assesses the role of the project participants (developers, lenders and government) with regards to these innovative technologies and solutions. In our paper we discuss the status of projects and the SA market, analysing the main challenges and opportunities that in turn have influenced various aspects such as technology choice, operational regimes and supply chain arrangements.

  13. The Efficacy of "Catch-Up Programmes" in South African High Schools: A Legal Jinx

    ERIC Educational Resources Information Center

    Nyoni, Jabulani

    2013-01-01

    The South African State is mandated by Sections 28(2) and 29(1) of the South African Constitution to make provision for the education of a South African child in fulfilment of the child's constitutional rights. Teacher Unions (TUs) and provincial Departments of Basic Education (DBEs) have often promised South African high school student body, in…

  14. Promoting critical consciousness and social mobilization in HIV/AIDS programmes: lessons and curricular tools from a South African intervention.

    PubMed

    Hatcher, Abigail; de Wet, Jacques; Bonell, Christopher Philip; Strange, Vicki; Phetla, Godfrey; Proynk, Paul M; Kim, Julia C; Morison, Linda; Porter, John D H; Busza, Joanna; Watts, Charlotte; Hargreaves, James R

    2011-06-01

    The development of critical consciousness is seen as a key stage in communities increasing levels of dialogue about priority problems and effecting structural change for health. However, relatively little research identifies concrete methods for programmes to build critical consciousness. We examined how a South African structural intervention used critical consciousness as a tool for prevention of intimate partner violence and HIV infection. We collected qualitative data in the form of in-depth interviews with managers, trainers, and participants of the Intervention with Microfinance for AIDS and Gender Equity intervention (IMAGE) in rural South Africa. The data were analysed through a coding structure developed in QSR NVivo. We draw practical lessons from IMAGE to guide other HIV programmes aiming to promoting critical consciousness and social mobilization. This research suggests that specific curricular tools can work towards critical consciousness and that mobilization efforts in future programmes can be strengthened by including individual and collective efforts by participants.

  15. French Atomic Energy Commission Decommissioning Programme and Feedback Experience - 12230

    SciTech Connect

    Guiberteau, Ph.; Nokhamzon, J.G.

    2012-07-01

    Since the French Atomic and Alternatives Energy Commission (CEA) was founded in 1945 to carry out research programmes on use of nuclear, and its application France has set up and run various types of installations: research or prototypes reactors, process study or examination laboratories, pilot installations, accelerators, nuclear power plants and processing facilities. Some of these are currently being dismantled or must be dismantled soon so that the DEN, the Nuclear Energy Division, can construct new equipment and thus have available a range of R and D facilities in line with the issues of the nuclear industry of the future. Since the 1960's and 1970's in all its centres, the CEA has acquired experience and know-how through dismantling various nuclear facilities. The dismantling techniques are nowadays operational, even if sometimes certain specific developments are necessary to reduce the cost of operations. Thanks to availability of techniques and guarantees of dismantling programme financing now from two dedicated funds, close to euro 15,000 M for the next thirty years, for current or projected dismantling operations, the CEA's Nuclear Energy Division has been able to develop, when necessary, its immediate dismantling strategy. Currently, nearly thirty facilities are being dismantled by the CEA's Nuclear Energy Division operational units with industrial partners. Thus the next decade will see completion of the dismantling and radioactive clean-up of the Grenoble site and of the facilities on the Fontenay-aux-Roses site. By 2016, the dismantling of the UP1 plant at Marcoule, the largest dismantling work in France, will be well advanced, with all the process equipment dismantled. After an overview of the French regulatory framework, the paper will describe the DD and R (Decontamination Decommissioning and Remediation) strategy, programme and feedback experience inside the CEA's Nuclear Energy Division. A special feature of dismantling operations at the CEA

  16. Ethical, legal and social issues in the context of the planning stages of the Southern African Human Genome Programme.

    PubMed

    de Vries, Jantina; Slabbert, Melodie; Pepper, Michael S

    2012-03-01

    As the focus on the origin of modern man appears to be moving from eastern to southern Africa, it is recognised that indigenous populations in southern Africa may be the most genetically diverse on the planet and hence a valuable resource for human genetic diversity studies. In order to build regional capacity for the generation, analysis and application of genomic data, the Southern African Human Genome Programme was recently launched with the aid of seed funding from the national Department of Science and Technology in South Africa. The purpose of the article is to investigate pertinent ethical, legal and social issues that have emerged during the planning stages of the Southern African Human Genome Programme. A careful consideration of key issues such as public perception of genomic research, issues relating to genetic and genomic discrimination and stigmatisation, informed consent, privacy and data protection, and the concept of genomic sovereignty, is of paramount importance in the early stages of the Programme. This article will also consider the present legal framework governing genomic research in South Africa and will conclude with proposals regarding such a framework for the future.

  17. Biomass energy use in developing countries: An African perspective

    SciTech Connect

    Karekezi, S.; Ewagata, E.

    1994-09-01

    Biomass forms the bulk of the energy supply of the developing world with the largest share consumed in the household sector as either fuelwood or charcoal for cooking, lighting and space heating. However there are a number of constraints facing the use of biomass if it is to be sustainable. Stephen Karekezi and Esther Ewagata of the African Energy Policy Research Network (AFREPREN) outline these constraints and discuss the modernisation of the traditional technologies now underway.

  18. Energy Usage Optimisation in South African Mines

    NASA Astrophysics Data System (ADS)

    Hasan, Ali; Twala, Bhekisipho; Ouahada, Khmaies; Marwala, Tshilidzi

    2014-03-01

    In recent years, South Africa has encountered a critical electricity supply which necessitated the implementation of demand-side management (DSM) projects. Load shifting and energy (EE) efficiency projects were introduced in mining sector to reduce the electricity usage during day peak time. As the compressed air networks and the water pumping systems are using large amounts of the mines' electricity, possible ways were investigated and implemented to improve and optimise the energy consumption and to reduce the costs. Implementing DSM and EE in four different mines resulted in achieving the desired energy savings and load-shifting. W ostatnich latach w Południowej Afryce zanotowano pewne trudności z dostawami energii elektrycznej, co wymusiło wdrożenie działań mających na celu skuteczne zarządzanie zagadnieniami energetycznymi. Wprowadzono działania mające na celu zmianę systemu obciążeń roboczych i bardziej efektywne wykorzystanie energii tak, by obniżyć zapotrzebowanie na energię w trakcie szczytowych godzin w ciągu dnia. Sieci dostarczające sprężone powietrze oraz stacje pomp zużywają znaczne ilości energii w kopalni, przeanalizowano więc możliwe sposoby redukcji i optymalizacji zapotrzebowania na energię i tym samym obniżenia kosztów produkcji. Wdrożenie odpowiednich projektów nakierowanych na oszczędności i optymalizację w czterech kopalniach doprowadziło do oczekiwanych oszczędności energii i umożliwiło zmianę systemu obciążeń roboczych w trakcie procesu produkcji.

  19. The West African monsoon: Contribution of the AMMA multidisciplinary programme to the study of a regional climate system.

    NASA Astrophysics Data System (ADS)

    Lebel, T.; Janicot, S.; Redelsperger, J. L.; Parker, D. J.; Thorncroft, C. D.

    2015-12-01

    The AMMA international project aims at improving our knowledge and understanding of the West African monsoon and its variability with an emphasis on daily-to-interannual timescales. AMMA is motivated by an interest in fundamental scientific issues and by the societal need for improved prediction of the WAM and its impacts on water resources, health and food security for West African nations. The West African monsoon (WAM) has a distinctive annual cycle in rainfall that remains a challenge to understand and predict. The location of peak rainfall, which resides in the Northern Hemisphere throughout the year, moves from the ocean to the land in boreal spring. Around the end of June there is a rapid shift in the location of peak rainfall between the coast and around 10°N where it remains until about the end of August. In September the peak rainfall returns equatorward at a relatively steady pace and is located over the ocean again by November. The fact that the peak rainfall migrates irregularly compared to the peak solar heating is due to the interactions that occur between the land, the atmosphere and the ocean. To gain a better understanding of this complex climate system, a large international research programme was launched in 2002, the biggest of its kind into environment and climate ever attempted in Africa. AMMA has involved a comprehensive field experiment bringing together ocean, land and atmospheric measurements, on timescales ranging from hourly and daily variability up to the changes in seasonal activity over a number of years. This presentation will focus on the description of the field programme and its accomplishments, and address some key questions that have been recently identified to form the core of AMMA-Phase 2.

  20. The clinician in the university: Reflections on a South African psychoanalytically oriented doctoral programme.

    PubMed

    Long, Carol; Eagle, Gillian; Stevens, Garth

    2017-04-01

    There is increasing interest, both internationally and in South Africa, in strengthening the relationship between psychoanalytic practice and research. This paper reports on a psychoanalytically oriented doctoral programme offered at the University of the Witwatersrand in South Africa. The programme is described in relation to the broader context of the historical relationship of psychoanalysis to the university as well as to the specific context of the history of psychoanalysis in South Africa. Key challenges of the programme, specifically concerning research tensions and methodological and theoretical tolerance, are subsequently explored. The way in which these challenges manifested within a group context illustrates their potential for conflict as well as productive debate. The paper reflects on how this specific programme illuminates and extends some of the broader debates in the field of psychoanalysis.

  1. Part-Time Post Graduate Certificate in Education Teacher-Students: What Do They Bring to and Expect from a Formal South African Teaching Programme?

    ERIC Educational Resources Information Center

    Mukeredzi, Tabitha Grace; Sibanda, Doras

    2016-01-01

    The purpose of this study was to understand the nature and extent of subject content and curriculum knowledge that part-time Post Graduate Certificate in Education students in one South African university, brought to the classroom, and the kind and level of knowledge that they expected and sought from the programme. The study employed a…

  2. Reflecting on a Leadership Development Programme: A Case Study in South African Higher Education

    ERIC Educational Resources Information Center

    Louw, Ina; Zuber-Skeritt, Ortrun

    2009-01-01

    Leadership development in higher education is of vital importance to South Africa's future. We present a case study that focuses on a leadership development programme (LDP) through action learning and action research (ALAR) for women academics in South Africa during 2000 and 2001. It identifies the effects of the LDP on participants five years…

  3. Performance of predictors: evaluating sustainability in community-directed treatment projects of the African programme for onchocerciasis control.

    PubMed

    Amazigo, Uche; Okeibunor, Joseph; Matovu, Victoria; Zouré, Honorat; Bump, Jesse; Seketeli, Azodoga

    2007-05-01

    The predictors of sustainability of community-directed treatment with ivermectin (CDTI) at four implementation levels were evaluated in 41 African Programme for Onchocerciasis Control (APOC) projects, encompassing 492 communities in 10 countries. A model protocol provided information on indicators corresponding to nine aspects of a project that is likely to be sustainable at community level after the cessation of external support. Six of the nine aspects had components of community ownership as predictors of project sustainability. Quantitative and qualitative assessments were used to obtain individual community scores and an overall sustainability score for each project graded on a scale of 0-4. Of the 41 projects evaluated, 70% scored "satisfactorily" to "highly sustainable" at the community level. We found variations among countries and that health system weaknesses could hamper community efforts in sustaining a project, such as when ivermectin was delivered late. Community ownership was of primary importance to the community score, and the community-level scores correlated with overall project sustainability. The therapeutic coverage achieved in each project correlated with the ratio of volunteer ivermectin distributors per population served. Surprisingly, the performance of these distributors was not affected by the direct incentives offered, and coverage appeared to be highest when cash or in-kind compensation was not given at all. Although further research is required, anecdotal evidence pointed to diverse indirect benefits for distributors-political goodwill, personal satisfaction and altruistic fulfillment. The results demonstrate that community ownership is among the important determining factors of sustainability of community-based programmes.

  4. A regional training programme for radiotherapists and allied professionals for the west African health community.

    PubMed

    Durosinmi-Etti, F A; Mouelle-Sone, A

    1993-03-01

    With 47% of the population under 15 years of age and the control of infectious and other communicable diseases, cancer will likely constitute a major health problem in West Africa in future. Radiotherapy facilities and trained manpower to run them are very limited within the subregion. This paper quantifies the severity of the situation and discusses a practical approach aimed at coping with the situation through the organisation of a training programme for radiotherapists, medical physicists and radiation technologists as part of the strategies for cancer control in West Africa. A curriculum is proposed for the training of radiotherapists.

  5. Can local communities 'sustain' HIV/AIDS programmes? A South African example.

    PubMed

    Gibbs, Andrew; Campbell, Catherine; Maimane, Sbongile

    2015-03-01

    Globally, there is a renewed interest in building the local sustainability of HIV/AIDS programmes to ensure that once funders withdraw, local communities can sustain programmes. While the 'local sustainability assumption' is widespread, little research has assessed this. In this article, we assess the sustainability of the Entabeni Project, a community-based intervention that sought to build women's local leadership and capacity to respond to HIV/AIDS through a group of volunteer carers, 3 years after external support was withdrawn. Overall, the sustainability of the Entabeni Project was limited. The wider social and political context undermined volunteer carers' sense that they could affect change, with little external support for them from government and NGOs, who struggled to engage with local community organizations. At the community level, some church leaders and community members recognized the important role of health volunteers, many continued to devalue the work of the carers, especially once there was no external organization to support and validate their work. Within the health volunteer group, despite extensive efforts to change dynamics, it remained dominated by a local male leader who denied others active participation while lacking the skills to meaningfully lead the project. Our case study suggests that the local-sustainability assumption is wishful thinking. Small-scale local projects are unlikely to be able to challenge the broader social and political dynamics hindering their sustainability without meaningful external support.

  6. The United Nations development programme initiative for sustainable energy

    SciTech Connect

    Hurry, S.

    1997-12-01

    Energy is central to current concerns about sustainable human development, affecting economic and social development; economic growth, the local, national, regional, and global environment; the global climate; a host of social concerns, including poverty, population, and health, the balance of payments, and the prospects for peace. Energy is not an end in itself, but rather the means to achieve the goals of sustainable human development. The energy systems of most developing countries are in serious crisis involving insufficient levels of energy services, environmental degradation, inequity, poor technical and financial performance, and capital scarcity. Approximately 2.5 billion people in the developing countries have little access to commercial energy supplies. Yet the global demand for energy continues to grow: total primary energy is projected to grow from 378 exajoules (EJ) per year in 1990 to 571 EJ in 2020, and 832 EJ in 2050. If this increase occurs using conventional approaches and energy sources, already serious local (e.g., indoor and urban air pollution), regional (eg., acidification and land degradation), and global (e.g., climate change) environmental problems will be critically aggravated. There is likely to be inadequate capital available for the needed investments in conventional energy sources. Current approaches to energy are thus not sustainable and will, in fact, make energy a barrier to socio-economic development. What is needed now is a new approach in which energy becomes an instrument for sustainable development. The two major components of a sustainable energy strategy are (1) more efficient energy use, especially at the point of end-use, and (2) increased use of renewable sources of energy. The UNDP Initiative for Sustainable Energy (UNISE) is designed to harness opportunities in these areas to build upon UNDP`s existing energy activities to help move the world toward a more sustainable energy strategy by helping program countries.

  7. Final Report: African Power/Energy and Environmental Development Plan, July 1, 1994 - August 21, 1999

    SciTech Connect

    Butler, John M.

    1999-08-21

    In 1994 AEF signed a Cooperative Agreement with DOE to address a program called the African Power /Energy and Environmental Development Plan. The Program initially addressed five area: (1) Historical Black Colleges and Universities Energy/Environmental Program; (2) The Department of Energy and United States Private Industry Africa Program; (3) The Annual United States Energy Study Tour; (4) South African Training Program, and (5) South African Environmental Program. The programs were implemented in conjunction with DOE, institutions, agencies and the private sector support in the USA and within African nations. AEF has worked with government and technical representatives from 13 African nations and expanded the program to address sponsorship of South African students in Historical Black Colleges and Universities, supporting DOE trade missions through participation and planning, and giving presentations in the U.S., and Africa regarding business opportunities in the African energy sector. The programs implemented have also opened doors for the US private sector to seek business opportunities in Africa and for African nations to gain exposure to US products and services.

  8. An Energy Management Programme for Grande Prairie Public School District. Energy Conservation: Energy Management.

    ERIC Educational Resources Information Center

    Calgary Univ. (Alberta).

    This report describes a pilot energy conservation project in Grande Prairie (Alberta) School District No. 2357. Extensive data collection and analysis were undertaken to provide a sound, quantitative basis for evaluation of the program. Energy conserving measures requiring capital outlays were not considered. During the project, electric demand…

  9. Technological requisites of the magnetic fusion energy programme

    SciTech Connect

    Cooper, W.A.

    1983-01-01

    An integral part of magnetic fusion energy research is the development of the technologies necessary for the confinement and heating of reactor-level plasmas. Heating systems based on energetic neutral beam particle injection or radio frequency waves (or both) will be required to heat plasmas to the temperatures at which fusion is self-sustaining. These systems may be used also to drive plasma currents. The magnet systems required to confine reactor-sized plasmas rely on the development of effective superconductors. Issues associated with safety and tritium handling concerns become important considerations in designing reactor concepts.

  10. Programmable energy landscapes for kinetic control of DNA strand displacement.

    PubMed

    Machinek, Robert R F; Ouldridge, Thomas E; Haley, Natalie E C; Bath, Jonathan; Turberfield, Andrew J

    2014-11-10

    DNA is used to construct synthetic systems that sense, actuate, move and compute. The operation of many dynamic DNA devices depends on toehold-mediated strand displacement, by which one DNA strand displaces another from a duplex. Kinetic control of strand displacement is particularly important in autonomous molecular machinery and molecular computation, in which non-equilibrium systems are controlled through rates of competing processes. Here, we introduce a new method based on the creation of mismatched base pairs as kinetic barriers to strand displacement. Reaction rate constants can be tuned across three orders of magnitude by altering the position of such a defect without significantly changing the stabilities of reactants or products. By modelling reaction free-energy landscapes, we explore the mechanistic basis of this control mechanism. We also demonstrate that oxDNA, a coarse-grained model of DNA, is capable of accurately predicting and explaining the impact of mismatches on displacement kinetics.

  11. Energy cost and return for hunting in African wild dogs and cheetahs

    PubMed Central

    Hubel, Tatjana Y.; Myatt, Julia P.; Jordan, Neil R.; Dewhirst, Oliver P.; McNutt, J. Weldon; Wilson, Alan M.

    2016-01-01

    African wild dogs (Lycaon pictus) are reported to hunt with energetically costly long chase distances. We used high-resolution GPS and inertial technology to record 1,119 high-speed chases of all members of a pack of six adult African wild dogs in northern Botswana. Dogs performed multiple short, high-speed, mostly unsuccessful chases to capture prey, while cheetahs (Acinonyx jubatus) undertook even shorter, higher-speed hunts. We used an energy balance model to show that the energy return from group hunting and feeding substantially outweighs the cost of multiple short chases, which indicates that African wild dogs are more energetically robust than previously believed. Comparison with cheetah illustrates the trade-off between sheer athleticism and high individual kill rate characteristic of cheetahs, and the energetic robustness of frequent opportunistic group hunting and feeding by African wild dogs. PMID:27023457

  12. Energy cost and return for hunting in African wild dogs and cheetahs.

    PubMed

    Hubel, Tatjana Y; Myatt, Julia P; Jordan, Neil R; Dewhirst, Oliver P; McNutt, J Weldon; Wilson, Alan M

    2016-03-29

    African wild dogs (Lycaon pictus) are reported to hunt with energetically costly long chase distances. We used high-resolution GPS and inertial technology to record 1,119 high-speed chases of all members of a pack of six adult African wild dogs in northern Botswana. Dogs performed multiple short, high-speed, mostly unsuccessful chases to capture prey, while cheetahs (Acinonyx jubatus) undertook even shorter, higher-speed hunts. We used an energy balance model to show that the energy return from group hunting and feeding substantially outweighs the cost of multiple short chases, which indicates that African wild dogs are more energetically robust than previously believed. Comparison with cheetah illustrates the trade-off between sheer athleticism and high individual kill rate characteristic of cheetahs, and the energetic robustness of frequent opportunistic group hunting and feeding by African wild dogs.

  13. "Not easy at all but I am trying": barriers and facilitators to physical activity in a South African cohort of people living with HIV participating in a home-based pedometer walking programme.

    PubMed

    Roos, Ronel; Myezwa, Hellen; van Aswegen, Helena

    2015-01-01

    The promotion of physical activity is encouraged in people living with HIV and AIDS (PLWHA) as a means of promoting wellness and health. Adherence to programmes that promote exercise is often reduced, and home-based programmes are suggested to improve adherence. This study investigated the personal and environmental factors that cause barriers and facilitators of physical activity in a home-based pedometer walking programme as a means of highlighting adherence challenges. An observational study nested in a randomised controlled trial was conducted in a cohort of South African PLWHA on antiretroviral therapy over a six-month period. Descriptive analysis and qualitative content analysis of 42 participants who underwent physical activity modification assisted with data review. The mean age of the sample was 38.7 (±8.9) years, consisted mostly of women (n = 35; 83.3%) who were employed (n = 19; 45.2%) but earning very little (less than R500 per month) and often single or widowed (n = 23; 54.8%). Barriers to physical activity identified included physical complaints, e.g., low-energy levels; psychological complaints, e.g., stress levels; family responsibility, e.g., being primary caregivers; the physical environment, e.g., adverse weather conditions; social environment, e.g., domestic abuse and crime; and workplace, e.g., being in a sedentary job. Facilitators of physical activity included support and encouragement from friends and family, religious practices during worship and community environment, e.g., having access to parks and sport fields. The study is of benefit as it highlights personal and environmental factors that need to be considered when developing or implementing a home-based walking programme in PLWHA.

  14. Bioethics training programmes for Africa: evaluating professional and bioethics-related achievements of African trainees after a decade of Fogarty NIH investment

    PubMed Central

    Kass, Nancy E; Ali, Joseph; Hallez, Kristina

    2016-01-01

    Objectives Our primary aim was to evaluate the impact of US National Institutes of Health (NIH)-funded bioethics training programmes (Fogarty bioethics training programmes, FBTPs) that trained individuals from Africa over the programme's first 10 years to examine changes between pretraining and post-training in individual achievement and to document any associations between individual, training programme and post-training accomplishments. Design We surveyed trainees from the 10 bioethics programmes funded by NIH Fogarty International Center from 2000 to 2011 that included African trainees. McNemar's and Wilcoxon signed rank-sum tests were used to analyse pre–post levels of general and bioethics-related professional achievement. Likelihood of specific post-training achievement outcomes was measured using logistic regression including demographic, pretraining and intratraining variables. Setting 10 different FBTPs that trained individuals from Africa from 2000 to 2011. Participants Of 253 eligible respondents, 171 completed the survey (response rate 67.6%). Primary outcome measures Pre–post comparisons of professional achievement indicators (eg, serving in leadership roles, teaching, publishing manuscripts); likelihood of specific post-training achievement outcomes. Results Post-training, respondents were significantly more likely to report serving in a leadership role, being an investigator on a research grant, serving on international committees, serving as a mentor, and publishing manuscripts than at pretraining. Post-training, significantly greater numbers of respondents reported bioethics-related achievements including being a bioethics instructor, serving on an Institutional Review Board (IRB), being an investigator on a bioethics grant and publishing bioethics-related manuscripts than pretraining. Controlling for other factors, there were no significant differences by gender in the post-training success of these participants in terms of leadership roles

  15. Peer Review and the Dilemmas of Quality Control in Programme Accreditation in South African Higher Education: Challenges and Possibilities

    ERIC Educational Resources Information Center

    Cross, Michael; Naidoo, Devika

    2011-01-01

    The paper scrutinises the dynamics and the nature of peer review in the programme evaluation and accreditation process within the context of diverse individual and institutional legacies in South Africa. It analyses the peer review process and highlights the contestation at political, policy and epistemological levels. The paper argues that,…

  16. Equity Development Programmes: Does Mentoring Make a Difference in Individual and Social Transformation for South African WonderWomen?

    ERIC Educational Resources Information Center

    Geber, Hilary

    2010-01-01

    The equity and transformation challenge for women and black academics at universities in Post-Apartheid South Africa is enormous. Despite a marked increase in equity development programmes since the 1996 Employment Equity legislation, fewer women than expected have advanced through the academic ranks. An indigenous mentoring model for…

  17. Monitoring programme revision highlights long-term salinity changes in selected South African rivers and the value of comprehensive long-term data sets.

    PubMed

    van Niekerk, H; Silberbauer, M J; Hohls, B C

    2009-07-01

    Determination of data adequacy for detection of long-term salinity changes was an important task in the revision of the South African National Chemical Monitoring Programme (NCMP). The NCMP has been running for more than 30 years with several hundred active monitoring sites. Twenty-five sites on major rivers had sufficient continuous data for the estimation of salinity changes over a 25-year period and statistically significant upward or downward trends occurred at 17 of the 25 sites. Most sites were too far apart for detailed analysis of whole river systems, though an upward trend is apparent in the Lower Orange River and a downward trend in the Great Fish River. Salinity in the Tugela River remained stable, well below the 70 mS m( - 1) guideline for drinking water. The results underline the importance of long-term data sets for assessing and managing aquatic systems and provide the impetus to continue building and maintaining long-term sampling programmes.

  18. A clinical audit programme for diagnostic radiology: the approach adopted by the International Atomic Energy Agency.

    PubMed

    Faulkner, K; Järvinen, H; Butler, P; McLean, I D; Pentecost, M; Rickard, M; Abdullah, B

    2010-01-01

    The International Atomic Energy Agency (IAEA) has a mandate to assist member states in areas of human health and particularly in the use of radiation for diagnosis and treatment. Clinical audit is seen as an essential tool to assist in assuring the quality of radiation medicine, particularly in the instance of multidisciplinary audit of diagnostic radiology. Consequently, an external clinical audit programme has been developed by the IAEA to examine the structure and processes existent at a clinical site, with the basic objectives of: (1) improvement in the quality of patient care; (2) promotion of the effective use of resources; (3) enhancement of the provision and organisation of clinical services; (4) further professional education and training. These objectives apply in four general areas of service delivery, namely quality management and infrastructure, patient procedures, technical procedures and education, training and research. In the IAEA approach, the audit process is initiated by a request from the centre seeking the audit. A three-member team, comprising a radiologist, medical physicist and radiographer, subsequently undertakes a 5-d audit visit to the clinical site to perform the audit and write the formal audit report. Preparation for the audit visit is crucial and involves the local clinical centre completing a form, which provides the audit team with information on the clinical centre. While all main aspects of clinical structure and process are examined, particular attention is paid to radiation-related activities as described in the relevant documents such as the IAEA Basic Safety Standards, the Code of Practice for Dosimetry in Diagnostic Radiology and related equipment and quality assurance documentation. It should be stressed, however, that the clinical audit does not have any regulatory function. The main purpose of the IAEA approach to clinical audit is one of promoting quality improvement and learning. This paper describes the background to

  19. Actor interfaces and practices of power in a community health worker programme: a South African study of unintended policy outcomes.

    PubMed

    Lehmann, Uta; Gilson, Lucy

    2013-07-01

    This paper makes a contribution to a much-neglected aspect of policy analysis: the practice of power in implementation. Practices of power are at the heart of every policy process, yet are rarely explicitly explored in the health policy literature. This paper provides a detailed study of micro-practices of power by those at the frontline of service delivery in the implementation of a national community health worker policy in one rural South African sub-district. The paper is based on a small-scale qualitative study which collected data through observations, interviews and focus group discussions with health services and facility managers, community health workers and community members. Practices of power were analysed using VeneKlasen and Miller's categorization of multiple dimensions of power, as power over, power with, power to and power within. Furthermore, the concept of 'actor interface analysis' allowed exploration of different actors' experience, interests and their specific location in the landscape of local health system governance. The study revealed that almost all policy actors exercised some form of power, from authoritative power, derived from hierarchy and budget control, to the discretionary power of those working at lower levels to withhold labour or organize in-service training. Each of these practices of power had their rationale in different actors' efforts to make the intervention 'fit' their understandings of local reality. While each had a limited impact on policy outcomes, their cumulative effect produced a significant thinning down of the policy's intent. However, discretionary power was not always used to undermine policy. One manager's use of discretionary power in fact led to a partial reconstruction of the original policy intent. The paper concludes that understanding and being responsive to the complexity of local realities, interests and contexts and the multi-layered practices of power may allow managers to adopt more appropriate

  20. The geographic distribution of onchocerciasis in the 20 participating countries of the African Programme for Onchocerciasis Control: (2) pre-control endemicity levels and estimated number infected

    PubMed Central

    2014-01-01

    Background The original aim of the African Programme for Onchocerciasis Control (APOC) was to control onchocerciasis as a public health problem in 20 African countries. In order to identify all high risk areas where ivermectin treatment was needed to achieve control, APOC used Rapid Epidemiological Mapping of Onchocerciasis (REMO). REMO involved spatial sampling of villages to be surveyed, and examination of 30 to 50 adults per village for palpable onchocercal nodules. REMO has now been virtually completed and we report the results in two articles. A companion article reports the delineation of high risk areas based on expert analysis. The present article reports the results of a geostatistical analysis of the REMO data to map endemicity levels and estimate the number infected. Methods A model-based geostatistical analysis of the REMO data was undertaken to generate high-resolution maps of the predicted prevalence of nodules and of the probability that the true nodule prevalence exceeds the high risk threshold of 20%. The number infected was estimated by converting nodule prevalence to microfilaria prevalence, and multiplying the predicted prevalence for each location with local data on population density. The geostatistical analysis included the nodule palpation data for 14,473 surveyed villages. Results The generated map of onchocerciasis endemicity levels, as reflected in the prevalence of nodules, is a significant advance with many new endemic areas identified. The prevalence of nodules was > 20% over an area of 2.5 million km2 with an estimated population of 62 million people. The results were consistent with the delineation of high risk areas of the expert analysis except for borderline areas where the prevalence fluctuated around 20%. It is estimated that 36 million people would have been infected in the APOC countries by 2011 if there had been no ivermectin treatment. Conclusions The map of onchocerciasis endemicity levels has proven very valuable for

  1. The geographic distribution of onchocerciasis in the 20 participating countries of the African Programme for Onchocerciasis Control: (1) priority areas for ivermectin treatment

    PubMed Central

    2014-01-01

    Background The African Programme for Onchocerciasis Control (APOC) was created to control onchocerciasis as a public health problem in 20 African countries. Its main strategy is community directed treatment with ivermectin. In order to identify all high risk areas where ivermectin treatment was needed, APOC used Rapid Epidemiological Mapping of Onchocerciasis (REMO). REMO has now been virtually completed and we report the results in two articles. The present article reports the mapping of high risk areas where onchocerciasis was a public health problem. The companion article reports the results of a geostatistical analysis of the REMO data to map endemicity levels and estimate the number infected. Methods REMO consists of three stages: exclusion of areas that are unsuitable for the vector, selection of sample villages to be surveyed in each river basin, and examination of 30 to 50 adults for the presence of palpable onchocercal nodules in each selected village. The survey results and other relevant information were processed in a geographical information system. A panel of experts interpreted the data taking the river-based sampling into account and delineated high risk areas where the prevalence of nodules is greater than 20%. Results Unsuitable areas were identified in eight countries. In the remaining areas surveys were done in a total of 14,473 sample villages in which more than half a million people were examined. High-risk areas were identified in 18 APOC countries, ranging from small isolated foci to a vast contiguous endemic area of 2 million km2 running across seven countries. In five countries the high risk area covered more than 48% of the total surface area, and 31% to 48% of the population. It is estimated that 86 million people live in high risk areas in the APOC countries. Conclusions The REMO maps have played a significant role in onchocerciasis control in the 20 APOC countries. All high-risk areas where onchocerciasis used to be a serious public

  2. Under-reporting of dietary energy intake in five populations of the African diaspora.

    PubMed

    Orcholski, Lindsay; Luke, Amy; Plange-Rhule, Jacob; Bovet, Pascal; Forrester, Terrence E; Lambert, Estelle V; Dugas, Lara R; Kettmann, Elizabeth; Durazo-Arvizu, Ramon A; Cooper, Richard S; Schoeller, Dale A

    2015-02-14

    Studies on the role of diet in the development of chronic diseases often rely on self-report surveys of dietary intake. Unfortunately, many validity studies have demonstrated that self-reported dietary intake is subject to systematic under-reporting, although the vast majority of such studies have been conducted in industrialised countries. The aim of the present study was to investigate whether or not systematic reporting error exists among the individuals of African ancestry (n 324) in five countries distributed across the Human Development Index (HDI) scale, a UN statistic devised to rank countries on non-income factors plus economic indicators. Using two 24 h dietary recalls to assess energy intake and the doubly labelled water method to assess total energy expenditure, we calculated the difference between these two values ((self-report - expenditure/expenditure) × 100) to identify under-reporting of habitual energy intake in selected communities in Ghana, South Africa, Seychelles, Jamaica and the USA. Under-reporting of habitual energy intake was observed in all the five countries. The South African cohort exhibited the highest mean under-reporting ( - 52·1% of energy) compared with the cohorts of Ghana ( - 22·5%), Jamaica ( - 17·9%), Seychelles ( - 25·0%) and the USA ( - 18·5%). BMI was the most consistent predictor of under-reporting compared with other predictors. In conclusion, there is substantial under-reporting of dietary energy intake in populations across the whole range of the HDI, and this systematic reporting error increases according to the BMI of an individual.

  3. Method for obtaining electron energy-density functions from Langmuir-probe data using a card-programmable calculator

    SciTech Connect

    Longhurst, G.R.

    1981-01-01

    This paper presents a method for obtaining electron energy density functions from Langmuir probe data taken in cool, dense plasmas where thin-sheath criteria apply and where magnetic effects are not severe. Noise is filtered out by using regression of orthogonal polynomials. The method requires only a programmable calculator (TI-59 or equivalent) to implement and can be used for the most general, nonequilibrium electron energy distribution plasmas. Data from a mercury ion source analyzed using this method are presented and compared with results for the same data using standard numerical techniques.

  4. A survey of energy drinks consumption practices among student -athletes in Ghana: lessons for developing health education intervention programmes

    PubMed Central

    2012-01-01

    Background Globally, young adults and college athletes are primary targets of the marketing campaigns of energy drink companies. Consequently, it is reported that young adults and college athletes consume energy drinks frequently. The purpose of this study was to determine the prevalence of energy drink consumption among student-athletes selected from seven public universities in Ghana. The study assessed the energy drink consumption patterns, types usually consumed, frequency of consumption and reasons why athletes consumed energy drinks. Methods A total number of 180 student-athletes gave their consent to participate in the study and completed a questionnaire which was administered during an inter-university sports competition. Results Most of the participants (62.2%) reported consuming at least one can of energy drink in a week. A high proportion (53.6%) of the respondents who drink energy drinks indicated that they did so to replenish lost energy after training or a competition. Other reasons given as to why energy drinks were consumed by the study participants included to provide energy and fluids to the body (25.9%), to improve performance (9.8%) and to reduce fatigue (5.4%). Conclusion These results suggest the need to plan health education programmes to particularly correct some wrong perceptions that athletes have regarding the benefits of energy drinks and also create awareness among student-athletes about the side effects of excessive intake of energy drinks. PMID:22444601

  5. Anaemia and zidovudine-containing antiretroviral therapy in paediatric antiretroviral programmes in the IeDEA Paediatric West African Database to evaluate AIDS

    PubMed Central

    Renner, Lorna A; Dicko, Fatoumata; Kouéta, Fla; Malateste, Karen; Gueye, Ramatoulaye D; Aka, Edmond; Eboua, Tanoh K; Azondékon, Alain; Okomo, Uduok; Touré, Pety; Ekouévi, Didier; Leroy, Valeriane

    2013-01-01

    Introduction There is a risk of anaemia among HIV-infected children on antiretroviral therapy (ART) containing zidovudine (ZDV) recommended in first-line regimens in the WHO guidelines. We estimated the risk of severe anaemia after initiation of a ZDV-containing regimen in HIV-infected children included in the IeDEA West African database. Methods Standardized collection of data from HIV-infected children (positive PCR<18 months or positive serology ≥18 months) followed up in HIV programmes was included in the regional IeDEA West Africa collaboration. Ten clinical centres from seven countries contributed (Benin, Burkina Faso, Côte d'Ivoire, Gambia, Ghana, Mali and Senegal) to this collection. Inclusion criteria were age <16 years and starting ART. We explored the data quality of haemoglobin documentation over time and the incidence and predictors of severe anaemia (Hb<7g/dL) per 100 child-years of follow-up over the duration of first-line antiretroviral therapy. Results As of December 2009, among the 2933 children included in the collaboration, 45% were girls, median age was five years; median CD4 cell percentage was 13%; median weight-for-age z-score was −2.7; and 1772 (60.4%) had a first-line ZDV-containing regimen. At baseline, 70% of the children with a first-line ZDV-containing regimen had a haemoglobin measure available versus 76% in those not on ZDV (p≤0.01): the prevalence of severe anaemia was 3.0% (n=38) in the ZDV group versus 10.2% (n=89) in those without (p<0. 01). Over the first-line follow-up, 58.9% of the children had ≥1 measure of haemoglobin available in those exposed to ZDV versus 60.4% of those not (p=0.45). Severe anaemia occurred in 92 children with an incidence of 2.47 per 100 child-years of follow-up in those on a ZDV-containing regimen versus 4.25 in those not (p≤0.01). Adjusted for age at ART initiation and first-line regimen, a weight-for-age z-score ≤−3 was a strong predictor associated with a 5.59 times risk of severe

  6. Experiences of Educational Content in Swedish Technical Vocational Education: Examples from the Energy and Industry Programmes

    ERIC Educational Resources Information Center

    Kilbrink, Nina; Bjurulf, Veronica; Olin-Scheller, Christina; Tengberg, Michael

    2014-01-01

    In this study, teachers and workplace supervisors in two vocational programmes at a Swedish upper secondary school were interviewed about their experiences of what is important to teach and learn during vocational education. The interviews were analysed thematically by the qualitative method analysis of narratives concerning what the informants…

  7. The Incorporation of the USA "Science Made Sensible" Programme in South African Primary Schools: A Cross-Cultural Approach to Science Education

    ERIC Educational Resources Information Center

    de Villiers, Rian; Plantan, Tiffany; Gaines, Michael

    2016-01-01

    The Science Made Sensible (SMS) programme began as a partnership between the University of Miami (UM), Florida, USA, and some public schools in Miami. In this programme, postgraduate students from UM work with primary school science teachers to engage learners in science through the use of inquiry-based, hands-on activities. Due to the success of…

  8. The Immune Effects of an African Traditional Energy Tonic in In Vitro and In Vivo Models.

    PubMed

    Ngcobo, Mlungisi; Gqaleni, Nceba; Naidoo, Vinny; Cele, Protus

    2017-01-01

    Most of the African traditional medicines (ATM) are formulated as energy tonics to boost and maintain immune defences. In this study, we aimed to evaluate the immune effects of a traditional energy tonic using peripheral blood mononuclear cells (PBMCs), THP-1 monocytes, and bacteria infected rats. When tested in mitogen and peptidoglycan stimulated PBMCs, this energy tonic showed minimal cytotoxicity, while in acute toxicity studies in rats it did not exhibit any significant toxicity at doses up to 2000 mg/mL/kg. The energy tonic doses between 100 and 10 μg/mL were shown to stimulate secretion of cytokines and increase sIL-2R levels in PHA-treated PBMCs. Similar doses in PG-S. aureus-stimulated PBMCs significantly (p < 0.05) increased IL-1α, IL-2, and GM-CSF while causing a significant (p < 0.05) decrease in sIL-2R levels. NF-κβ transcriptional activity was increased in LPS stimulated THP-1 cells. In Sprague Dawley rats pretreated with the energy tonic and then infected with S. aureus, there were insignificant increases in cytokines and sIL-2R when compared to bacteria infected only and 5% Enrofloxacin treated rats. Posttreatment with energy tonic doses after infection with S. aureus did not enhance inflammatory cytokines significantly but changed the immune response profile and decreased corticosterone levels. This ATM showed promising immunomodulatory effects on isolated immune cells and modulated the immune response of rat models infected with S. aureus.

  9. The Immune Effects of an African Traditional Energy Tonic in In Vitro and In Vivo Models

    PubMed Central

    Ngcobo, Mlungisi; Naidoo, Vinny; Cele, Protus

    2017-01-01

    Most of the African traditional medicines (ATM) are formulated as energy tonics to boost and maintain immune defences. In this study, we aimed to evaluate the immune effects of a traditional energy tonic using peripheral blood mononuclear cells (PBMCs), THP-1 monocytes, and bacteria infected rats. When tested in mitogen and peptidoglycan stimulated PBMCs, this energy tonic showed minimal cytotoxicity, while in acute toxicity studies in rats it did not exhibit any significant toxicity at doses up to 2000 mg/mL/kg. The energy tonic doses between 100 and 10 μg/mL were shown to stimulate secretion of cytokines and increase sIL-2R levels in PHA-treated PBMCs. Similar doses in PG-S. aureus-stimulated PBMCs significantly (p < 0.05) increased IL-1α, IL-2, and GM-CSF while causing a significant (p < 0.05) decrease in sIL-2R levels. NF-κβ transcriptional activity was increased in LPS stimulated THP-1 cells. In Sprague Dawley rats pretreated with the energy tonic and then infected with S. aureus, there were insignificant increases in cytokines and sIL-2R when compared to bacteria infected only and 5% Enrofloxacin treated rats. Posttreatment with energy tonic doses after infection with S. aureus did not enhance inflammatory cytokines significantly but changed the immune response profile and decreased corticosterone levels. This ATM showed promising immunomodulatory effects on isolated immune cells and modulated the immune response of rat models infected with S. aureus.

  10. Temperature-independent energy expenditure in early development of the African clawed frog Xenopus laevis.

    PubMed

    Nagano, Yatsuhisa; Ode, Koji L

    2014-08-01

    The thermal dissipation of activated eggs and embryos undergoing development from cleavage to the tailbud stage of the African clawed frog Xenopus laevis was measured as a function of incubation time at temperatures ranging from T = 288.2 K to 295.2 K, using a high-precision isothermal calorimeter. A23187-mediated activation of mature eggs induced stable periodic thermal oscillations lasting for 8-34 h. The frequency agreed well with the cell cycle frequency of initial cleavages at the identical temperature. In the developing embryo, energy metabolism switches from embryonic to adult features during gastrulation. The thermal dissipation after gastrulation fit well with a single modified Avrami equation, which has been used for modeling crystal-growth. Both the oscillation frequency of the activated egg and the growth rate of the embryo strongly depend on temperature with the same apparent activation energy of approximately 87 kJ mole(-1). This result suggests that early development proceeds as a single biological time, attributable to a single metabolic rate. A temperature-independent growth curve was derived by scaling the thermogram to the biological time, indicating that the amount of energy expenditure during each developmental stage is constant over the optimal temperature range.

  11. Temperature-independent energy expenditure in early development of the African clawed frog Xenopus laevis

    NASA Astrophysics Data System (ADS)

    Nagano, Yatsuhisa; Ode, Koji L.

    2014-08-01

    The thermal dissipation of activated eggs and embryos undergoing development from cleavage to the tailbud stage of the African clawed frog Xenopus laevis was measured as a function of incubation time at temperatures ranging from T = 288.2 K to 295.2 K, using a high-precision isothermal calorimeter. A23187-mediated activation of mature eggs induced stable periodic thermal oscillations lasting for 8-34 h. The frequency agreed well with the cell cycle frequency of initial cleavages at the identical temperature. In the developing embryo, energy metabolism switches from embryonic to adult features during gastrulation. The thermal dissipation after gastrulation fit well with a single modified Avrami equation, which has been used for modeling crystal-growth. Both the oscillation frequency of the activated egg and the growth rate of the embryo strongly depend on temperature with the same apparent activation energy of approximately 87 kJ mole-1. This result suggests that early development proceeds as a single biological time, attributable to a single metabolic rate. A temperature-independent growth curve was derived by scaling the thermogram to the biological time, indicating that the amount of energy expenditure during each developmental stage is constant over the optimal temperature range.

  12. A programmable energy efficient readout chip for a multiparameter highly integrated implantable biosensor system

    NASA Astrophysics Data System (ADS)

    Nawito, M.; Richter, H.; Stett, A.; Burghartz, J. N.

    2015-11-01

    In this work an Application Specific Integrated Circuit (ASIC) for an implantable electrochemical biosensor system (SMART implant, Stett et al., 2014) is presented. The ASIC drives the measurement electrodes and performs amperometric measurements for determining the oxygen concentration, potentiometric measurements for evaluating the pH-level as well as temperature measurements. A 10-bit pipeline analog to digital (ADC) is used to digitize the acquired analog samples and is implemented as a single stage to reduce power consumption and chip area. For pH measurements, an offset subtraction technique is employed to raise the resolution to 12-bits. Charge integration is utilized for oxygen and temperature measurements with the capability to cover current ranges between 30 nA and 1 μA. In order to achieve good performance over a wide range of supply and process variations, internal reference voltages are generated from a programmable band-gap regulated circuit and biasing currents are supplied from a wide-range bootstrap current reference. To accommodate the limited available electrical power, all components are designed for low power operation. Also a sequential operation approach is applied, in which essential circuit building blocks are time multiplexed between different measurement types. All measurement sequences and parameters are programmable and can be adjusted for different tissues and media. The chip communicates with external unites through a full duplex two-wire Serial Peripheral Interface (SPI), which receives operational instructions and at the same time outputs the internally stored measurement data. The circuit has been fabricated in a standard 0.5-μm CMOS process and operates on a supply as low as 2.7 V. Measurement results show good performance and agree with circuit simulation. It consumes a maximum of 500 μA DC current and is clocked between 500 kHz and 4 MHz according to the measurement parameters. Measurement results of the on-chip ADC show a

  13. The Effect of a Perceptual-Motor Intervention Programme on Learning Readiness of Grade R Learners from South African Deprived Environments

    ERIC Educational Resources Information Center

    Erasmus, Myrtle; Janse van Rensburg, Ona; Pienaar, Anita E.; Ellis, Suria

    2016-01-01

    South Africa consists of developed and developing contexts. This article reports on a study undertaken to determine the effect of a Perceptual--motor Intervention Programme in learning readiness of Grade R learners from deprived environments. Le Roux's Group Test for School Readiness was used as baseline assessments to establish the school…

  14. Towards a Whole-School Approach to the Pastoral Care Module in a Postgraduate Certificate of Education Programme: A South African Experience

    ERIC Educational Resources Information Center

    Schoeman, Sonja

    2015-01-01

    This study explores the potential of adopting a whole-school approach to the pastoral care module in a Postgraduate Certificate of Education Programme to ensure that all newly qualified teachers practice effective pastoral care in their classrooms and promote the learners' academic engagement and performance. A non-experimental survey research…

  15. Developing Programmes to Promote Participation in Sport among Adolescents with Disabilities: Perceptions Expressed by a Group of South African Adolescents with Cerebral Palsy

    ERIC Educational Resources Information Center

    Bantjes, Jason; Swartz, Leslie; Conchar, Lauren; Derman, Wayne

    2015-01-01

    Adolescents with disabilities in developing countries frequently have limited access to sporting opportunities and comparatively little is known of their lived experiences and preferences. We set out to understand what a group of adolescents with cerebral palsy (CP) living in South Africa perceive to be important components of programmes developed…

  16. Developmental programming of energy balance regulation: Is physical activity more "programmable" than food intake

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Extensive human and animal model data show that environmental influences during critical periods of prenatal and early postnatal development can cause persistent alterations in energy balance regulation. Although a potentially important factor in the worldwide obesity epidemic, the fundamental mecha...

  17. Developmental programming of energy balance regulation: is physical activity more 'programmable' than food intake?

    PubMed

    Zhu, Shaoyu; Eclarinal, Jesse; Baker, Maria S; Li, Ge; Waterland, Robert A

    2016-02-01

    Extensive human and animal model data show that environmental influences during critical periods of prenatal and early postnatal development can cause persistent alterations in energy balance regulation. Although a potentially important factor in the worldwide obesity epidemic, the fundamental mechanisms underlying such developmental programming of energy balance are poorly understood, limiting our ability to intervene. Most studies of developmental programming of energy balance have focused on persistent alterations in the regulation of energy intake; energy expenditure has been relatively underemphasised. In particular, very few studies have evaluated developmental programming of physical activity. The aim of this review is to summarise recent evidence that early environment may have a profound impact on establishment of individual propensity for physical activity. Recently, we characterised two different mouse models of developmental programming of obesity; one models fetal growth restriction followed by catch-up growth, and the other models early postnatal overnutrition. In both studies, we observed alterations in body-weight regulation that persisted to adulthood, but no group differences in food intake. Rather, in both cases, programming of energy balance appeared to be due to persistent alterations in energy expenditure and spontaneous physical activity (SPA). These effects were stronger in female offspring. We are currently exploring the hypothesis that developmental programming of SPA occurs via induced sex-specific alterations in epigenetic regulation in the hypothalamus and other regions of the central nervous system. We will summarise the current progress towards testing this hypothesis. Early environmental influences on establishment of physical activity are likely an important factor in developmental programming of energy balance. Understanding the fundamental underlying mechanisms in appropriate animal models will help determine whether early life

  18. Evolution of HIV and AIDS Programmes in an African Institution of Higher Learning: The Case of the Copperbelt University in Zambia

    PubMed Central

    Sanjobo, Nawa; Lukwesa, Matilda; Kaziya, Charity; Tepa, Cornwell; Puta, Bernard

    2016-01-01

    Background: Universities present the foundation for socio-economic and political development. Without structures and processes to fight HIV, there is no prospect of enhancing treatment, prevention, care and support services. Copperbelt University HIV and AIDS response was initiated in 2003 with the aim of building capacity of students and employees in HIV and AIDS. Objectives: The main objective of this paper is to demonstrate how the CBU HIV response has evolved over time and provide a timeline of important milestones in the development process. Method: Peer educators and counsellors conduct sensitization campaigns through one on one discussion, workshops, and drama performances, distribution of Information, Education and Communication (IEC) materials. Results: HIV Programme has been set up with players from policy, programme and community levels. Strategic processes, collaborations, funding, medical insurance schemes, prevention, treatment, care and support services, training of peer educators and counsellors have been established. Conclusion: Copperbelt University HIV initiative has demonstrated potential to reduce new infections in the university, and is currently expanding her programme to encompass wellness and also spearhead the integration of HIV in the university curriculum. PMID:27347269

  19. The politics of African energy development: Ethiopia's hydro-agricultural state-building strategy and clashing paradigms of water security.

    PubMed

    Verhoeven, Harry

    2013-11-13

    As key economic, ecological and demographic trends converge to reshape Africa and its relationship with the outside world, a new politics is emerging in the twenty-first century around the water-food-energy nexus, which is central to the continent's relevance in the global economy. On the one hand, Malthusian anxieties are proliferating; pessimists link population growth and growing water scarcity to state failure and 'water wars'. On the other hand, entrepreneurs, sovereign wealth funds and speculators consider Africa's potential in water resources, energy production and food output as one of the last great untapped opportunities for the global economy: Africa is on the brink of an agro-industrial transformation. This article examines how African actors are not merely responding to economic and environmental changes but also thinking politically about water, food and energy security. Many of them are seizing the new opportunities to redefine their national politics, their relationship with local communities and their ties with external players, regionally and globally. Ethiopia's project of hydro-agricultural state-building helps to identify the most important fault lines of this new politics at the national, local and international level. The politics of water security and energy development simultaneously puts African states and their populations on the defensive, as they grapple with huge challenges, but also provides them with unique opportunities to take advantage of a more favourable global configuration of forces.

  20. A digitizer based compact digital spectrometer for ion beam analysis using field programmable gate arrays and various energy algorithms

    SciTech Connect

    Jäger, Markus; Reinert, Tilo

    2013-08-15

    We report on the implementation of a compact multi-detector fully digital spectrometer and data acquisition system at a nuclear microprobe for ion beam analysis and imaging. The spectrometer design allows for system scalability with no restriction on the number of detectors. It consists of four-channel high-speed digitizer modules for detector signal acquisition and one low-speed digital-to-analog converter (DAC) module with two DAC channels and additional general purpose inputs/outputs to control ion beam scanning and data acquisition. Each digitizer module of the spectrometer provides its own Field Programmable Gate Array (FPGA) as digital signal processing unit to analyze detector signals as well as to synchronize the ion beam position in hard real-time. With the customized FPGA designs for all modules, all calculation intensive tasks are executed inside the modules, which reduces significantly the data stream to and CPU load on the control computer. To achieve an optimal energy resolution for all detector/preamplifier pulse shape characteristics, a user-definable infinite impulse response filter with high throughput for energy determination was implemented. The new spectrometer has an online data analysis feature, a compact size, and is able to process any type of detector signals such as particle induced x-ray emission, Rutherford backscattering spectrometry, or scanning transmission ion microscopy.

  1. A digitizer based compact digital spectrometer for ion beam analysis using Field Programmable Gate Arrays and various energy algorithms.

    PubMed

    Jäger, Markus; Reinert, Tilo

    2013-08-01

    We report on the implementation of a compact multi-detector fully digital spectrometer and data acquisition system at a nuclear microprobe for ion beam analysis and imaging. The spectrometer design allows for system scalability with no restriction on the number of detectors. It consists of four-channel high-speed digitizer modules for detector signal acquisition and one low-speed digital-to-analog converter (DAC) module with two DAC channels and additional general purpose inputs∕outputs to control ion beam scanning and data acquisition. Each digitizer module of the spectrometer provides its own Field Programmable Gate Array (FPGA) as digital signal processing unit to analyze detector signals as well as to synchronize the ion beam position in hard real-time. With the customized FPGA designs for all modules, all calculation intensive tasks are executed inside the modules, which reduces significantly the data stream to and CPU load on the control computer. To achieve an optimal energy resolution for all detector∕preamplifier pulse shape characteristics, a user-definable infinite impulse response filter with high throughput for energy determination was implemented. The new spectrometer has an online data analysis feature, a compact size, and is able to process any type of detector signals such as particle induced x-ray emission, Rutherford backscattering spectrometry, or scanning transmission ion microscopy.

  2. International energy agency solar heating and cooling programme: Task 8, passive and hybrid solar low energy buildings

    NASA Astrophysics Data System (ADS)

    Holtz, M. J.

    1983-11-01

    The background of and results achieved by the International Energy Agency are discussed. Task objectives approach, and participants are presented as well as results from two international surveys on simulation models and design tools. Conventional reference buildings are described representative of typical design and construction practice in each country and will be used as a basis of comparison to passive/hybrid designs developed. Work in progress is briefly described along with Agency information dissemination activities.

  3. Evaluating Large-Scale Interactive Radio Programmes

    ERIC Educational Resources Information Center

    Potter, Charles; Naidoo, Gordon

    2009-01-01

    This article focuses on the challenges involved in conducting evaluations of interactive radio programmes in South Africa with large numbers of schools, teachers, and learners. It focuses on the role such large-scale evaluation has played during the South African radio learning programme's development stage, as well as during its subsequent…

  4. Effect of an individually tailored one-year energy balance programme on body weight, body composition and lifestyle in recent retirees: a cluster randomised controlled trial

    PubMed Central

    2010-01-01

    Background The increased prevalence of overweight and obesity warrants preventive actions, particularly among people in transitional stages associated with lifestyle changes, such as occupational retirement. The purpose is to investigate the effect of a one year low-intensity computer-tailored energy balance programme among recent retirees on waist circumference, body weight and body composition, blood pressure, physical activity and dietary intake. Methods A randomised controlled trial was conducted among recent retirees (N = 413; mean age 59.5 years). Outcome measures were assessed using anthropometry, bio-impedance, blood pressure measurement and questionnaires. Results Waist circumference, body weight and blood pressure decreased significantly in men of the intervention and control group, but no significant between-group-differences were observed at 12 or at 24-months follow-up. A significant effect of the programme was only observed on waist circumference (-1.56 cm (95%CI: -2.91 to -0.21)) at 12 month follow up among men with low education (n = 85). Physical activity and dietary behaviours improved in both the intervention and control group during the intervention period. Although, these behaviours changed more favourably in the intervention group, these between-group-differences were not statistically significant. Conclusions The multifaceted computer-tailored programme for recent retirees did not appear to be effective. Apparently the transition to occupational retirement and/or participation in the study had a greater impact than the intervention programme. Trial registration Clinical Trials NCT00122213. PMID:20205704

  5. Sibling species distributions of the Simulium damnosum complex in the west African Onchocerciasis Control Programme area during the decade 1984-93, following intensive larviciding since 1974.

    PubMed

    Boakye, D A; Back, C; Fiasorgbor, G K; Sib, A P; Coulibaly, Y

    1998-10-01

    During the decade from 1984 to 1993, nine species of the Simulium damnosum complex of blackflies (Diptera: Simuliidae) were identified from the area covered by the Onchocerciasis Control Programme. These were S. damnosum s.s., S. dieguerense, S. konkourense, S. leonense, S. sanctipauli, S. sirbanum, S. soubrense, S. squamosum, and S. yahense. Some of these species were found to consist of two chromosomal variant populations. These were S. konkourense 'Konkouré' and 'Menankaya' forms, S. sanctipauli sensu stricto and 'Djodji' form, S. soubrense 'Chute Milo' and 'Beffa' forms. The distribution of these twelve cytological taxa was assessed in relation to the two main vegetation zones of West Africa (forest and savanna), topography, river size and other factors. The range of each species was influenced by seasonal climatic changes in wind movement and river water level. The most widely distributed species were S. sirbanum and S. damnosum s.s., associated with savanna areas, recorded from all river basins. Simulium dieguerense was restricted mainly to Western Mali on the Rivers Bafing and Bakoye in the Senegal River basin. Simulium squamosum was identified from rivers draining mountainous areas in both the forest and savanna zones. Simulium yahense was found in small permanent rivers along a wide forested band parallel to the coast and was absent from the plains of Togo and Benin. Members of the S. sanctipauli subcomplex had restricted distributions except for S. sanctipauli s.s., which was widespread in large rivers of the forest zone from Sierra Leone to the Volta Lake in Ghana. Simulium soubrense 'Beffa' form occurred in Togo and Benin, S. soubrense 'Chutes Milo' form in Guinea, both 'Konkouré' and 'Menankaya' forms of S. konkourense occurred predominantly in Guinea and S. leonense in Sierra Leone. The relevance of the distribution maps and the importance of the data bank to vector control larvicidal operations are discussed.

  6. Effect of South African beef production systems on post-mortem muscle energy status and meat quality.

    PubMed

    Frylinck, L; Strydom, P E; Webb, E C; du Toit, E

    2013-04-01

    Post-slaughter muscle energy metabolism meat colour of South African production systems were compared; steers (n=182) of Nguni, Simmental Brahman crossbreds were reared on pasture until A-, AB-, or B-age, in feedlot until A-AB-age. After exsanguination carcasses were electrically stimulated (400 V for 15 s). M. longissimus dorsi muscle energy samples were taken at 1, 2, 4 and 20 h. Post-mortem samples for meat quality studies were taken at 1, 7 and 14 days post-mortem. Production systems affected muscle glycogen, glucose, glucose-6-P, lactic acid, ATP, creatine-P glycolytic potential (P<0.05), with the muscles of feedlot carcasses having a faster glycolysis rate than pasture carcasses. Energy metabolites correlated (0.40.5) water holding capacity, drip loss, and Warner Bratzler shear force. Muscle energy only affected muscle contraction of the A-age-pasture system (shortest sarcomere length of 1.66 μm vs 1.75 μm highest WBS of 6 kg vs 5 kg 7 days post-mortem).

  7. Impact of long-term treatment of onchocerciasis with ivermectin in Kaduna State, Nigeria: first evidence of the potential for elimination in the operational area of the African Programme for Onchocerciasis Control

    PubMed Central

    2012-01-01

    Background Onchocerciasis can be effectively controlled as a public health problem by annual mass drug administration of ivermectin, but it was not known if ivermectin treatment in the long term would be able to achieve elimination of onchocerciasis infection and interruption of transmission in endemic areas in Africa. A recent study in Mali and Senegal has provided the first evidence of elimination after 15-17 years of treatment. Following this finding, the African Programme for Onchocerciasis Control (APOC) has started a systematic evaluation of the long-term impact of ivermectin treatment projects and the feasibility of elimination in APOC supported countries. This paper reports the first results for two onchocerciasis foci in Kaduna, Nigeria. Methods In 2008, an epidemiological evaluation using skin snip parasitological diagnostic method was carried out in two onchocerciasis foci, in Birnin Gwari Local Government Area (LGA), and in the Kauru and Lere LGAs of Kaduna State, Nigeria. The survey was undertaken in 26 villages and examined 3,703 people above the age of one year. The result was compared with the baseline survey undertaken in 1987. Results The communities had received 15 to 17 years of ivermectin treatment with more than 75% reported coverage. For each surveyed community, comparable baseline data were available. Before treatment, the community prevalence of O. volvulus microfilaria in the skin ranged from 23.1% to 84.9%, with a median prevalence of 52.0%. After 15 to 17 years of treatment, the prevalence had fallen to 0% in all communities and all 3,703 examined individuals were skin snip negative. Conclusions The results of the surveys confirm the finding in Senegal and Mali that ivermectin treatment alone can eliminate onchocerciasis infection and probably disease transmission in endemic foci in Africa. It is the first of such evidence for the APOC operational area. PMID:22313631

  8. Energy, protein, and zinc nutriture of rural African children in relation to some anthropometric indices

    SciTech Connect

    Ferguson, E.L.; Gibson, R.S.; Osei-Opare, F.; Opare-Obisaw, C.; Thompson, L.U. Univ. of Ghana, Legon Univ. of Toronto, Ontario )

    1991-03-11

    Heights, weights, arm circumferences, and triceps skinfold thicknesses of 66 Malawian and 148 Ghanaian preschool children were measured during 3 seasons. Their seasonal energy, protein, Ca, Zn, dietary fiber and phytate intakes were estimated from 3-day weighed records, using analyzed and literature food composition values. Seasonal hair Zn concentrations were analyzed by instrumental neutron activation analyses, The mean annual intakes for Malawian compared to Ghanaian children were higher for energy protein, and Zn. Cereals contributed a higher proportion of the total energy intake in the Malawian compared to the Ghanaian diets. A higher percentage of the Malawian children had height-for-age Z-scores below {minus}2SD, but a lower percentage had weight-for-height Z-scores below {minus}1SD compared to their Ghanaian counterparts. These differences may, in part be related to the high cereal intakes of the Malawian children.

  9. Intertextuality in EAP: An African Context

    ERIC Educational Resources Information Center

    Holmes, John

    2004-01-01

    This paper focuses on the development of EAP methodology within an African EAP context. I describe the setting up and implementation of an EAP study skills programme at the University of Asmara, Eritrea, over the period 1994-1998 and its subsequent development up to 2002. The unique social and political context of the EAP programme served as a…

  10. Programmable Pacemaker

    NASA Technical Reports Server (NTRS)

    1980-01-01

    St. Jude Medical's Cardiac Rhythm Management Division, formerly known as Pacesetter Systems, Inc., incorporated Apollo technology into the development of the programmable pacemaker system. This consists of the implantable pacemaker together with a physician's console containing the programmer and a data printer. Physician can communicate with patient's pacemaker by means of wireless telemetry signals transmitted through the communicating head held over the patient's chest. Where earlier pacemakers deliver a fixed type of stimulus once implanted, Programalith enables surgery free "fine tuning" of device to best suit the patient's changing needs.

  11. Programmable Pulser

    NASA Technical Reports Server (NTRS)

    Baumann, Eric; Merolla, Anthony

    1988-01-01

    User controls number of clock pulses to prevent burnout. New digital programmable pulser circuit in three formats; freely running, counted, and single pulse. Operates at frequencies up to 5 MHz, with no special consideration given to layout of components or to terminations. Pulser based on sequential circuit with four states and binary counter with appropriate decoding logic. Number of programmable pulses increased beyond 127 by addition of another counter and decoding logic. For very large pulse counts and/or very high frequencies, use synchronous counters to avoid errors caused by propagation delays. Invaluable tool for initial verification or diagnosis of digital or digitally controlled circuity.

  12. Testing the relationships between energy consumption, CO2 emissions, and economic growth in 24 African countries: a panel ARDL approach.

    PubMed

    Asongu, Simplice; El Montasser, Ghassen; Toumi, Hassen

    2016-04-01

    This study complements existing literature by examining the nexus between energy consumption (EC), CO2 emissions (CE), and economic growth (GDP; gross domestic product) in 24 African countries using a panel autoregressive distributed lag (ARDL) approach. The following findings are established. First, there is a long-run relationship between EC, CE, and GDP. Second, a long-term effect from CE to GDP and EC is apparent, with reciprocal paths. Third, the error correction mechanisms are consistently stable. However, in cases of disequilibrium, only EC can be significantly adjusted to its long-run relationship. Fourth, there is a long-run causality running from GDP and CE to EC. Fifth, we find causality running from either CE or both CE and EC to GDP, and inverse causal paths are observable. Causality from EC to GDP is not strong, which supports the conservative hypothesis. Sixth, the causal direction from EC to GDP remains unobservable in the short term. By contrast, the opposite path is observable. There are also no short-run causalities from GDP, or EC, or EC, and GDP to EC. Policy implications are discussed.

  13. Priority: Africa Programme of Action Proposed by the Director-General (1990-1995). Development of Higher Education in Africa--The ALEXANDRIA Seminar on the Resources and Management of the African University (26 - 30 April 1993).

    ERIC Educational Resources Information Center

    Association of African Universities, Accra-North (Ghana).

    A seminar was held in Alexandria (Egypt) to bring together African university presidents, vice-chancellors, rectors, and top-level administrators to discuss the following themes: privatization, entrepreneurship, policies of international financial institutions with regard to African universities, and regionalization and the establishment of…

  14. The effectiveness of aerobic training, cognitive behavioural therapy, and energy conservation management in treating MS-related fatigue: the design of the TREFAMS-ACE programme

    PubMed Central

    2013-01-01

    Background TREFAMS is an acronym for TReating FAtigue in Multiple Sclerosis, while ACE refers to the rehabilitation treatment methods under study, that is, Aerobic training, Cognitive behavioural therapy, and Energy conservation management. The TREFAMS-ACE research programme consists of four studies and has two main objectives: (1) to assess the effectiveness of three different rehabilitation treatment strategies in reducing fatigue and improving societal participation in patients with MS; and (2) to study the neurobiological mechanisms of action that underlie treatment effects and MS-related fatigue in general. Methods/Design Ambulatory patients (n = 270) suffering from MS-related fatigue will be recruited to three single-blinded randomised clinical trials (RCTs). In each RCT, 90 patients will be randomly allocated to the trial-specific intervention or to a low-intensity intervention that is the same for all RCTs. This low-intensity intervention consists of three individual consultations with a specialised MS-nurse. The trial-specific interventions are Aerobic Training, Cognitive Behavioural Therapy, and Energy Conservation Management. These interventions consist of 12 individual therapist-supervised sessions with additional intervention-specific home exercises. The therapy period lasts 16 weeks. All RCTs have the same design and the same primary outcome measures: fatigue - measured with the Checklist Individual Strength, and participation - measured with the Impact on Participation and Autonomy questionnaire. Outcomes will be assessed 1 week prior to, and at 0, 8, 16, 26 and 52 weeks after randomisation. The assessors will be blinded to allocation. Pro- and anti-inflammatory cytokines in serum, salivary cortisol, physical fitness, physical activity, coping, self-efficacy, illness cognitions and other determinants will be longitudinally measured in order to study the neurobiological mechanisms of action. Discussion The TREFAMS-ACE programme is unique in its aim to

  15. Field Evaluation of Programmable Thermostats

    SciTech Connect

    Sachs, O.; Tiefenbeck, V.; Duvier, C.; Qin, A.; Cheney, K.; Akers, C.; Roth, K.

    2012-12-01

    Prior research suggests that poor programmable thermostats usability may prevent their effective use to save energy. The Fraunhofer team hypothesized that home occupants with high-usability thermostats would be more likely to use them to save energy than people with a basic thermostats. In this report, the team discusses results of a project in which the team monitored and compared programmable thermostats with basic thermostats in an affordable housing apartment complex.

  16. Progress of National Multi-tissue Bank in Uruguay in the International Atomic Energy Agency (IAEA) Tissue Banking Programme.

    PubMed

    Alvarez, Inés; Del Carmen Saldías, Ma; Wodowoz, Olga; Pérez Campos, Héctor; Machin, Daniel; Silva, Walter; Sueta, Patricia; Pérez, Natalia; Acosta Md, Ma del Carmen

    2003-01-01

    The transplant law of 1971 based on informed consent, allows people to register their willingness to be a donor upon death. Since 1978 the governmental Institution, the National Bank of Organs and Tissues (BNOT), have been regulated the organ and tissue donation. Important progress was implemented in the BNOT and specially in the National Multi-tissue Bank (NMTB). Since 2001 with the participation in the IAEA Tissue Banking Programme, Quality System Management has been implemented in the NMTB. New bio-production for radiosterilized tissues for the first time and improved procedures were carried out. As a result an increased production of high-quality tissues was obtained and distributed for clinical use.

  17. Effects of hypoxia on the energy status and nitrogen metabolism of African lungfish during aestivation in a mucus cocoon.

    PubMed

    Loong, A M; Ang, S F; Wong, W P; Pörtner, H O; Bock, C; Wittig, R; Bridges, C R; Chew, S F; Ip, Y K

    2008-09-01

    We examined the energy status, nitrogen metabolism and hepatic glutamate dehydrogenase activity in the African lungfish Protopterus annectens during aestivation in normoxia (air) or hypoxia (2% O(2) in N(2)), with tissues sampled on day 3 (aerial exposure with preparation for aestivation), day 6 (entering into aestivation) or day 12 (undergoing aestivation). There was no accumulation of ammonia in tissues of fish exposed to normoxia or hypoxia throughout the 12-day period. Ammonia toxicity was avoided by increased urea synthesis and/or decreased endogenous N production (as ammonia), but the dependency on these two mechanisms differed between the normoxic and the hypoxic fish. The rate of urea synthesis increased 2.4-fold, with only a 12% decrease in the rate of N production in the normoxic fish. By contrast, the rate of N production in the hypoxic fish decreased by 58%, with no increase in the rate of urea synthesis. Using in vivo (31)P NMR spectroscopy, it was demonstrated that hypoxia led to significantly lower ATP concentration on day 12 and significantly lower creatine phosphate concentration on days 1, 6, 9 and 12 in the anterior region of the fish as compared with normoxia. Additionally, the hypoxic fish had lower creatine phosphate concentration in the middle region than the normoxic fish on day 9. Hence, lowering the dependency on increased urea synthesis to detoxify ammonia, which is energy intensive by reducing N production, would conserve cellular energy during aestivation in hypoxia. Indeed, there were significant increases in glutamate concentrations in tissues of fish aestivating in hypoxia, which indicates decreases in its degradation and/or transamination. Furthermore, there were significant increases in the hepatic glutamate dehydrogenase (GDH) amination activity, the amination/deamination ratio and the dependency of the amination activity on ADP activation in fish on days 6 and 12 in hypoxia, but similar changes occurred only in the normoxic fish

  18. The Impact of Fire on Energy Balance in Southern African Savanna Ecosystems: Implications of Climate Change

    NASA Astrophysics Data System (ADS)

    Dintwe, K.; Okin, G. S.; Saha, M.; Scanlon, T. M.; D'Odorico, P.; De Sales, F.; Xue, Y.

    2015-12-01

    Savannas are the most fire prone ecosystems in the world accounting for more than 75% of annual global fires. Wildfires in savannas consume large quantities of biomass releasing CO2 and aerosols while leaving ash and char residues. The residues form black-grey patches on the soil surface, and together with newly exposed bare soil patches, they play a significant role in altering surface reflectance and vegetation condition. We investigated the impact of fire on savanna albedo and vegetation greenness (from Enhanced Vegetation Index, EVI) from 2000-2014 using data from the Moderate Resolution Imaging Spectrometer (MODIS) for Africa south of the Equator. Preliminary results indicate that more mesic savannas near the Equator have the highest fire frequencies, with fire frequency generally decreasing with aridity. Immediately after fires, the average change in albedo and EVI is -5% and -10%, respectively, with the magnitude of the change increasing with aridity. The time for albedo to recover to values similar to unburned areas varied by latitude, with more mesic savannas recovering much faster (24 days vs. 65 days for dry savannas). The time for vegetation condition to recover did not vary strongly by latitude (about 65 days). The upward shortwave energy in burnt areas in mesic savannas is 53 W m-2 compared to 95 W m-2 for unburnt areas, indicating a positive forcing of about 42 W m-2 associated with mesic savanna fires locally. Approximately 7% of the (primarily savanna) land in southern Africa burns each year, suggesting an overall forcing in Africa south of the Equator of ~1-2 W m-2 associated with savanna fires. This large forcing indicates clearly the important interplay between ecosystem processes (fire) and climate (radiative forcing) in this region. With changing climate, this region is expected to become significantly drier, suggesting that the forcing due to fire might decrease in the coming decades and indicating that fire-induced albedo changes potentially

  19. Inconsistency between Self-Reported Energy Intake and Body Mass Index among Urban, African-American Children

    PubMed Central

    Yamaguchi, Miwa; Steeves, Elizabeth Anderson; Shipley, Cara; Hopkins, Laura C.; Cheskin, Lawrence J.; Gittelsohn, Joel

    2016-01-01

    Background To prevent obesity, it is important to assess dietary habits through self-reported energy intake (EI) in children. We investigated how EI is associated with body mass index and which elements of dietary habits and status are associated with EI among African-American (AA) children. Methods We assessed and included data from 218 10–14-year-old AA children in Baltimore, MD, USA. EI was calculated using a food frequency questionnaire. The basal metabolic rate (BMR) was used as the predicted minimal rate of energy expenditure of children. A fully adjusted multiple logistic regression was used to determine the prevalence of obesity (≥ 95th BMI-for-age percentile) among the quartiles of EI/BMR ratio using the third quartile for the reference. The differences in the age-adjusted mean EI/BMR among the categories of dietary habits, social support, and socio economic status were analyzed using a general linear model. Results Children with the lowest EI/BMR had significantly higher adjusted odds ratio (aOR) of obesity as compared to those in the third quartile of EI/BMR (boys aOR 4.3; 95% confidence interval 1.08, 20 and girls aOR 4.1; 1.02, 21). In girls, the adjusted mean EI/BMR in the group that prepared food less than the means (3.8 times/week) was significantly lower than the group that prepared food over the means (P = 0.03). Further, the group that reported eating breakfast under 4 times/week indicated an adjusted mean EI/BMR lower than the group that ate breakfast over 5 times/week in both sexes. Conclusions When EI was under-reported with reference to BMR, we may observe high prevalence of obesity. Further, food preparation by children and frequent consumption of breakfast may instill food cognition with usual dietary habits. Therefore, holistic assessments including dietary habits are required to examine self-reported food intake especially among overweight/obese children. PMID:27977776

  20. Healthwise South Africa: Cultural Adaptation of a School-Based Risk Prevention Programme

    ERIC Educational Resources Information Center

    Wegner, L.; Flisher, A. J.; Caldwell, L. L.; Vergnani, T.; Smith, E. A.

    2008-01-01

    There is a need for effective prevention programmes aimed at reducing risk behaviour among South African adolescents. HealthWise South Africa is a school-based programme designed to reduce sexual and substance use risk behaviour, and promote positive use of leisure time among high-school learners (students). Based on successful programmes in the…

  1. The Dual Promise of Green Jobs: A Qualitative Study of Federally Funded Energy Training Programmes in the USA

    ERIC Educational Resources Information Center

    Scully-Russ, Ellen

    2013-01-01

    Purpose: The aim of this paper is to review the policy literature on green jobs and green jobs training in the USA and to present findings of a qualitative study on the start-up of two Energy Training Partnerships (ETP) funded by the US Department of Labour to train workers for green jobs. Design/methodology/approach: The paper includes a review…

  2. The Insidious Nature of "Hard-Core" Alternative Conceptions: Implications for the Constructivist Research Programme of Patterns in High School Students' and Pre-Service Teachers' Thinking about Ionisation Energy

    ERIC Educational Resources Information Center

    Taber, Keith S.; Tan, Kim Chwee Daniel

    2011-01-01

    The present study contributes to the constructivist research programme (RP) into learning science by comparing patterns in responses from two groups of learners--senior high school students and pre-service teachers--in the same educational context (Singapore), to a diagnostic instrument relating to the topic of ionisation energies. This topic is…

  3. IEA solar: Working toward greater cost-effectiveness, report of the International Energy Agency Solar Heating and Cooling Programme

    NASA Astrophysics Data System (ADS)

    Blum, S.

    1986-02-01

    This is the 1985 Annual Report of the International Energy Agency Solar Heating and Cooling (SHC) Program. The format of the report has been changed substantially from that of previous years. In addition, the report has been given a special theme: Working Toward Greater Cost-Effectiveness. Section 2 of this report, the special theme chapter, discusses the contributions of the cooperative activities to achieving more cost-effective solar heating and cooling systems. A report on the progress and accomplishments during 1985 of the current tasks is found in Section 3. Section 4, Appendix, contains a description of each of the tasks as background information for those unfamiliar with all or parts of the program. Finally, the Appendix also contains information on IEA SHC reports, meetings, Executive Committee Members and task technical participants.

  4. Rapid development of tissue bank achieved by International Atomic Energy Agency (IAEA) Tissue Banking Programme in China.

    PubMed

    Zhang, Yu-Min; Wang, Jian-Ru; Zhang, Nai-Li; Liu, Xiao-Ming; Zhou, Mo; Ma, Shao-Ying; Yang, Ting; Li, Bao-Xing

    2014-09-01

    Before 1986, the development of tissue banking in China has been slow and relatively uncoordinated. Under the support of International Atomic Energy Agency (IAEA), Tissue Banking in China experienced rapid development. In this period, China Institute for Radiation Protection tissue bank mastered systematic and modern tissue banking technique by IAEA training course and gradually developed the first regional tissue bank (Shanxi Provincial Tissue Bank, SPTB) to provide tissue allograft. Benefit from training course, SPTB promoted the development of tissue transplantation by ways of training, brochure, advertisement and meeting. Tissue allograft transplantation acquired recognition from clinic and supervision and administration from government. Quality system gradually is developing and perfecting. Tissue allograft transplantation and tissue bank are developing rapidly and healthy.

  5. A programmable optimization environment using the GAMESS-US and MERLIN/MCL packages. Applications on intermolecular interaction energies

    NASA Astrophysics Data System (ADS)

    Kalatzis, Fanis G.; Papageorgiou, Dimitrios G.; Demetropoulos, Ioannis N.

    2006-09-01

    The Merlin/MCL optimization environment and the GAMESS-US package were combined so as to offer an extended and efficient quantum chemistry optimization system, capable of implementing complex optimization strategies for generic molecular modeling problems. A communication and data exchange interface was established between the two packages exploiting all Merlin features such as multiple optimizers, box constraints, user extensions and a high level programming language. An important feature of the interface is its ability to perform dimer computations by eliminating the basis set superposition error using the counterpoise (CP) method of Boys and Bernardi. Furthermore it offers CP-corrected geometry optimizations using analytic derivatives. The unified optimization environment was applied to construct portions of the intermolecular potential energy surface of the weakly bound H-bonded complex C 6H 6-H 2O by utilizing the high level Merlin Control Language. The H-bonded dimer HF-H 2O was also studied by CP-corrected geometry optimization. The ab initio electronic structure energies were calculated using the 6-31G ** basis set at the Restricted Hartree-Fock and second-order Moller-Plesset levels, while all geometry optimizations were carried out using a quasi-Newton algorithm provided by Merlin. Program summaryTitle of program: MERGAM Catalogue identifier:ADYB_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/ADYB_v1_0 Program obtainable from: CPC Program Library, Queen's University of Belfast, N. Ireland Computer for which the program is designed and others on which it has been tested: The program is designed for machines running the UNIX operating system. It has been tested on the following architectures: IA32 (Linux with gcc/g77 v.3.2.3), AMD64 (Linux with the Portland group compilers v.6.0), SUN64 (SunOS 5.8 with the Sun Workshop compilers v.5.2) and SGI64 (IRIX 6.5 with the MIPSpro compilers v.7.4) Installations: University of Ioannina, Greece Operating

  6. Demand controlled ventilating systems: Sensor market survey. Energy conservation in buildings and community systems programme, annex 18, December 1991

    NASA Astrophysics Data System (ADS)

    Raatschen, W.; Sjoegren, M.

    The subject of indoor and outdoor air quality has generated a great deal of attention in many countries. Areas of concern include outgassing of building materials as well as occupant-generated pollutants such as carbon dioxide, moisture, and odors. Progress has also been made towards addressing issues relating to the air tightness of the building envelope. Indoor air quality studies indicate that better control of supply flow rates as well as the air distribution pattern within buildings are necessary. One method of maintaining good indoor air quality without extensive energy consumption is to control the ventilation rate according to the needs and demands of the occupants, or to preserve the building envelope. This is accomplished through the use of demand controlled ventilating (DCV) systems. The specific objective of Annex 18 is to develop guidelines for demand controlled ventilating systems based on state of the art analyses, case studies on ventilation effectiveness, and proposed ventilation rates for different users in domestic, office, and school buildings.

  7. Exploring Teachers' Reading Competences: A South African Case Study

    ERIC Educational Resources Information Center

    Bertram, Carol

    2006-01-01

    The purpose of this study is to investigate the reading competence of teachers who are enrolled in a distance education programme in a South African university. Many South African teachers upgrade their teaching diplomas by enrolling for a part-time, distance degree at a university. However, many are not prepared for academic study and its focus…

  8. The African Institutions Initiative: Insights from the First Four Years

    ERIC Educational Resources Information Center

    Cochrane, Gavin; Robin, Enora; Marjanovic, Sonja; Diepeveen, Stephanie; Hanlin, Rebecca; Kryl, David; Muchova, Lucia; Yaqub, Ohid; Chataway, Joanna

    2014-01-01

    In 2009, the Wellcome Trust launched a research capacity strengthening programme known as the "African Institutions Initiative" (AII). The AII is innovative in its methods and organization. The Initiative funded networked consortia (7 consortia involving 54 institutions in 18 African countries, and Northern partners). RAND Europe was…

  9. Short sleep duration is associated with higher energy intake and expenditure among African-American and non-Hispanic white adults.

    PubMed

    Patterson, Ruth E; Emond, Jennifer A; Natarajan, Loki; Wesseling-Perry, Katherine; Kolonel, Laurence N; Jardack, Patricia; Ancoli-Israel, Sonia; Arab, Lenore

    2014-04-01

    Habitual short sleep duration appears to increase the risk of obesity. The objective of this paper is to investigate the association of habitual sleep duration with objective measures of energy balance. One hundred twelve African-American and 111 non-Hispanic whites aged 21-69 y participated in a cross-sectional study of dietary assessment and biomarkers. Participants reported the mean number of hours per day spent sleeping over the past year. Short sleep duration was defined as ≤6 h/d of sleep. Energy intake (kilocalories) was objectively assessed using the 2-point doubly labeled water technique to determine total energy expenditure, which is approximately equal to energy intake. Physical activity energy expenditure (kilocalories) was estimated as total energy expenditure minus each participant's calculated basal metabolic rate and the thermogenic effect of food. Compared with participants who slept ≤6 h, individuals who slept 8 h were significantly less likely to be obese (OR: 0.33; 95% CI: 0.14, 0.79). However, this association was not linear across 6-9 h of sleep (P-trend = 0.16). There was an inverse association between sleep and energy intake (P-trend = 0.07): compared with ≤6 h/d, adults who reported ≥9 h sleep consumed 178 fewer kcal/d. There was also an inverse association between sleep and physical activity (P-trend = 0.05): compared with ≤6 h/d of sleep, adults who reported 9 h of usual sleep expended 113 fewer kcal/d in physical activity. These data indicate that, compared with longer sleep duration, adults who report habitual short sleep duration have somewhat higher physical activity energy expenditure but considerably higher energy intake. Habitual short sleep duration appears to be 1 of the facets of modern life leading to a mismatch between energy intake and physical activity.

  10. Intake of energy-dense foods, fast foods, sugary drinks, and breast cancer risk in African American and European American women.

    PubMed

    Chandran, Urmila; McCann, Susan E; Zirpoli, Gary; Gong, Zhihong; Lin, Yong; Hong, Chi-Chen; Ciupak, Gregory; Pawlish, Karen; Ambrosone, Christine B; Bandera, Elisa V

    2014-01-01

    Limiting energy-dense foods, fast foods, and sugary drinks that promote weight gain is a cancer prevention recommendation, but no studies have evaluated intake in relation to breast cancer risk in African American (AA) women. In a case-control study with 1692 AA women (803 cases and 889 controls) and 1456 European American (EA) women (755 cases and 701 controls), odds ratios (OR) and 95% confidence intervals (CI) for risk were computed, stratifying for menopausal and estrogen receptor (ER) status. Among postmenopausal EA women, breast cancer risk was associated with frequent consumption of energy-dense foods (OR = 2.95; 95% CI: 1.66-5.22), fast foods (OR = 2.35; 95% CI: 1.38-4.00), and sugary drinks (OR = 2.05; 95% CI: 1.13-3.70). Elevated risk of ER+ tumors in EA women was associated with energy-dense (OR = 1.75; 95% CI: 1.14-2.69) and fast foods (OR = 1.84; 95% CI: 1.22-2.77). Among AA women, frequent fast food consumption was related to premenopausal breast cancer risk (OR = 1.97; 95% CI: 1.13-3.43), and with ER+ tumors. Energy adjustment attenuated risk estimates in AA women, while strengthening them among EA women. Frequent consumption of energy-dense and fast foods that have poor nutritive value appeared to increase breast cancer risk in AA and EA women, with differences by menopausal status and ER status.

  11. A guidebook for insulated low-slope roof systems. IEA Annex 19, Low-slope roof systems: International Energy Agency Energy Conservation in Buildings and Community Systems Programme

    SciTech Connect

    Not Available

    1994-02-01

    Low-slope roof systems are common on commercial and industrial buildings and, to a lesser extent, on residential buildings. Although insulating materials have nearly always been a component of low-slope roofs, the amount of insulation used has increased in the past two decades because of escalation of heating and cooling costs and increased awareness of the need for energy conservation. As the amount of insulation has increased, the demand has intensified for design, installation, and maintenance information specifically for well-insulated roofs. Existing practices for design, installation, and maintenance of insulated roofs have evolved from experience. Typically, these practices feature compromises due to the different properties of materials making up a given roof system. Therefore, they should be examined from time to time to ensure that they are appropriate as new materials continue to enter the market and as the data base on existing systems expands. A primary purpose of this International Energy Agency (IEA) study is to assess current roofing insulation practices in the context of an accumulating data base on performance.

  12. Programmable Kiri-Kirigami Metamaterials.

    PubMed

    Tang, Yichao; Lin, Gaojian; Yang, Shu; Yi, Yun Kyu; Kamien, Randall D; Yin, Jie

    2017-03-01

    Programmable kirigami metamaterials with controllable local tilting orientations on demand through prescribed notches are constructed through a new approach of kiri-kirgami, and their actuation of pore opening via both mechanical stretching and temperature, along with their potential application as skins for energy-saving buildings, is discussed.

  13. The African Pediatric Fellowship Program: Training in Africa for Africans.

    PubMed

    Wilmshurst, Jo M; Morrow, Brenda; du Preez, Avril; Githanga, David; Kennedy, Neil; Zar, Heather J

    2016-01-01

    Africa has a significant burden of childhood disease, with relatively few skilled health care professionals. The African Paediatric Fellowship Programme was developed by the Department of Pediatrics and Child Health at the University of Cape Town to provide relevant training for African child health professionals, by Africans, within Africa. Trainees identified by partner academic institutions spend 6 months to 2 years training in the Department of Pediatrics and allied disciplines. They then return to their home institution to build practice, training, research, and advocacy. From 2008 to 2015, 73 physicians have completed or are completing training in general pediatrics or a pediatric subspecialty. At 1 year posttraining, 98% to 100% are practicing back in their home institution. The impact of the returning fellows is evident from their practice interventions, research collaborations, and positions as stakeholders who can change health care policies. Thirty-three centers in 13 African countries are partners with the program, and the program template is now followed by other partner sites in Africa. Increasing and retaining the skills pool of African child health specialists is building a network of motivated, highly skilled clinicians who are equipped to advance child health in Africa.

  14. Energy-water-food nexus under financial constraint environment: good, the bad, and the ugly sustainability reforms in sub-Saharan African countries.

    PubMed

    Zaman, Khalid; Shamsuddin, Sadaf; Ahmad, Mehboob

    2017-04-06

    Environmental sustainability agenda are generally compromised by energy, water, and food production resources, while in the recent waves of global financial crisis, it mediates to increase the intensity of air pollutants, which largely affected the less developing countries due to their ease of environmental regulation policies and lack of optimal utilization of economic resources. Sub-Saharan African (SSA) countries are no exception that majorly hit by the recent global financial crisis, which affected the country's natural environment through the channel of unsustainable energy-water-food production. The study employed panel random effect model that addresses the country-specific time-invariant shocks to examine the non-linear relationship between water-energy-food resources and air pollutants in a panel of 19 selected SSA countries, for a period of 2000-2014. The results confirmed the carbon-fossil-methane environmental Kuznets curve (EKC) that turned into inverted U-shaped relationships in a panel of selected SSA countries. Food resources largely affected greenhouse gas (GHG), methane (CH4), and nitrous oxide (N2O) emissions while water resource decreases carbon dioxide (CO2), fossil fuel, and CH4 emissions in a region. Energy efficiency improves air quality indicators while industry value added increases CO2 emissions, fossil fuel energy, and GHG emissions. Global financial crisis increases the risk of climate change across countries. The study concludes that although SSA countries strive hard to take some "good" initiatives to reduce environmental degradation in a form of improved water and energy sources, however, due to lack of optimal utilization of food resources and global financial constraints, it leads to "the bad" and "the ugly" sustainability reforms in a region.

  15. Performance and Parasitology of Semi-intensively Managed West African Dwarf Sheep Exposed to Gastrointestinal Helminth Infected Paddocks and Varied Protein-energy Feeds

    PubMed Central

    SONIBARE, Adekayode Olarinwaju; SOWANDE, Olusiji Sunday; IPOSU, Shamusideen Oladeinde; LUKA, Joshua; AYANKOSOI, Michael; EGBETADE, Adeniyi Olugbega

    2016-01-01

    Background: The performance and parasitology of semi-intensively managed West African dwarf (WAD) lambs were evaluated following exposure to gastrointestinal helminth infected paddock and varied protein-energy feeds. Methods: Twenty four lambs obtained from the Department of Animal Breeding and Genetics and brought to Directorate of University farm (DUFARM) of Federal University of Agriculture Abeokuta, Ogun state, Nigeria, where the research was carried out in 2014, were grouped into four each containing six animals based on different energy-protein feed combination thus; group 1(G1) low energy low protein, group 2 (G2) low energy high protein, group 3 (G3) high energy low protein and group 4 (G4) high energy high protein. Experimental animals were supplemented with concentrate feed after grazing on daily in a nematode infected paddock. Clinical signs of infection were monitored. Live weight, faecal egg count (FEC), worm counts, packed cell volume (PCV), haemoglobin concentration (Hb) and red blood cell count (RBC) were determined using standard methods. Results: Anorexia and intermittent diarrhea were the observed signs. Worm counts did not differ significantly (P=0.309) among the groups. The weight and FEC differed significantly (P<0.05) across the days and among the groups, while haematological parameters increased significantly (P<0.05) across the days and among the groups. Conclusion: Lambs in G2 followed by G4 showed improved parameters and superior performance when compared to the other groups. It is therefore recommended that feed high in protein content is capable of mitigating deleterious effect of gastrointestinal helminth parasitism. PMID:28127368

  16. Not Merely a Matter of Academics: Student Experiences of a South African University as Study-Abroad Destination

    ERIC Educational Resources Information Center

    Paola, R. J.; Lemmer, E. M.

    2013-01-01

    Study abroad programmes attract considerable numbers of American college students; however, very few select an African country as their study-abroad destination. This article explores the experiences of American undergraduates who made the uncommon choice of a South African university as destination for a mid-length immersion type programme. The…

  17. ADRB2 gene variants, dual-energy x-ray absorptiometry body composition, and hypertension in Tobago men of African descent.

    PubMed

    Beason, Tracey Samantha; Bunker, Clareann H; Zmuda, Joseph M; Wilson, John W; Patrick, Alan L; Wheeler, Victor W; Weissfeld, Joel L

    2011-05-01

    Classic tissue effects of β(2)-adrenergic receptor activation include skeletal muscle glycogenolysis and vascular smooth muscle relaxation, factors relevant to obesity and hypertension, respectively. In a population-based study, we examined 2 common amino acid substitutions in the β(2)-adrenergic receptor gene (ADRB2) in relation to body composition and blood pressure. A cross-sectional analysis of 1893 African-descent men living in Tobago and participating in a prostate cancer screening study was performed. Body mass index, waist circumference, blood pressure, dual-energy x-ray absorptiometry body composition, and ADRB2 (Arg16Gly; Gln27Glu) genotype were determined. Twenty-six percent were obese (body mass index ≥30 kg/m(2)), and 50% were hypertensive. ADRB2 Arg16Gly and Gln27Glu alleles were in linkage disequilibrium (D' = 0.96, r(2) = 0.15). ADRB2 16Gly-containing and 27Glu-containing genotypes were equally frequent in low, medium, and high tertiles of percentage of body fat mass (16Gly-containing genotypes: 73.4%, 74.4%, and 74.5%, P(trend) = .66; 27Glu-containing genotypes: 27.6%, 23.8%, and 25.4%, P(trend) = .39) and in normal blood pressure, prehypertensive, and hypertensive men (16Gly-containing genotypes: 73.4%, 72.8%, and 74.4%, P(trend) = .61; 27Glu-containing genotypes: 25.6%, 24.1%, and 26.7%, P(trend) = .50). In a high-obesity and high-hypertension risk population with ancestry in common with African Americans, genetic variation defined by 2 common ADRB2 amino acid substitutions was not associated with body composition or hypertension.

  18. Priority: Africa Programme for Action Proposed by the Director-General (1990-1995). Development of Higher Education in Africa--The African University: Into the New Millennium. Results of a Series of Seminars on Higher Education in Africa (Accra: November 1991, Dakar: November 1992 and Alexandria: April 1993).

    ERIC Educational Resources Information Center

    Association of African Universities, Accra-North (Ghana).

    This document brings into focus the main ideas and action-oriented decisions emanating from the seminars of heads of African universities which took place on the themes of: the mission of the African university (Accra, 1991); restructuring the African university (Dakar, 1992); and the resources and management of the African university (Alexandria,…

  19. Examining the Invisible Loop: Tutors in Large Scale Teacher Development Programmes

    ERIC Educational Resources Information Center

    Bansilal, Sarah

    2014-01-01

    The recent curriculum changes in the South African education system have necessitated the development of large scale in-service training programmes for teachers. For some teacher training providers this has resulted in utilizing the services of tutors or facilitators from the various regions to deliver the programme. This article examines the role…

  20. Academic Programmes in Universities in East Africa: A Catalyst to Development

    ERIC Educational Resources Information Center

    Karimi, Florah Katanu

    2015-01-01

    The types of academic programmes offered by universities, both public and private, are considered to be critical to the realization of development agendas. This study was descriptive in nature and sought to establish whether universities in the East African region were offering academic programmes that were relevant to the realization of the…

  1. Evaluating Doctoral Programmes in Africa: Context and Practices

    ERIC Educational Resources Information Center

    Cross, Michael; Backhouse, Judy

    2014-01-01

    Models of doctoral education in Africa remained similar to those in European universities, well into the 2000s. However, there has been an increasing realisation that such programmes are ill-suited for the African realities. With recent efforts to revitalise higher education in Africa, considerable attention has been placed on the need to explore…

  2. Approaches to Costing Adult Literacy Programmes, Especially in Africa

    ERIC Educational Resources Information Center

    Carr-Hill, Roy; Roberts, Fiona; Currie, Elizabeth

    2010-01-01

    Background: This study was originally prepared for the African Inter-Ministerial Conference on Literacy (September 2007) with the objective of analysing the costs of successful adult literacy programmes run both by government ministries, as well as international and national non-governmental organisations. Objectives: This study aims to increase…

  3. African Aesthetics

    ERIC Educational Resources Information Center

    Abiodun, Rowland

    2001-01-01

    No single traditional discipline can adequately supply answers to the many unresolved questions in African art history. Because of the aesthetic, cultural, historical, and, not infrequently, political biases, already built into the conception and development of Western art history, the discipline of art history as defined and practiced in the West…

  4. African Pentecostalism

    ERIC Educational Resources Information Center

    Garrard, David J.

    2009-01-01

    The diversity of African Pentecostalism, its early colonial and missionary history and its current characteristics are described and analysed. Reference is made to methods of training and forms of leadership, and suggestions are made about the reasons for its growth and persistence. (Contains 19 notes.)

  5. African-American Biography.

    ERIC Educational Resources Information Center

    Martin, Ron

    1995-01-01

    Suggests sources of information for African American History Month for library media specialists who work with students in grades four through eight. Gale Research's "African-American Reference Library," which includes "African-America Biography,""African-American Chronology," and "African-American Almanac,"…

  6. Departures from the Energy-Biodiversity Relationship in South African Passerines: Are the Legacies of Past Climates Mediated by Behavioral Constraints on Dispersal?

    PubMed Central

    Péron, Guillaume; Altwegg, Res

    2015-01-01

    Legacies of paleoclimates in contemporary biodiversity patterns have mostly been investigated with global datasets, or with weakly dispersive organisms, and as a consequence been interpreted in terms of geographical or physical constraints. If paleoclimatic legacies also occurred at the regional scale in the distributions of vagile organisms within biomes, they would rather suggest behavioral constraints on dispersal, i.e., philopatric syndromes. We examined 1) the residuals of the regression between contemporary energy and passerine species richness in South African biomes and 2) phylogenetic dispersion of passerine assemblages, using occupancy models and quarter-degree resolution citizen science data. We found a northeast to southwest gradient within mesic biomes congruent with the location of Quaternary mesic refugia, overall suggesting that as distance from refugia increased, more clades were lacking from local assemblages. A similar but weaker pattern was detected in the arid Karoo Biomes. In mobile organisms such as birds, behavioral constraints on dispersal appear strong enough to influence species distributions thousands of years after historical range contractions. PMID:26208300

  7. African Trypanosomiasis

    DTIC Science & Technology

    2011-06-01

    infection by protozoan hemo- flagellates of the Trypanosoma brucei complex, 2 subspe- cies of which cause disease in humans: Trypanosoma bru- cei gambiense...public release; distribution unlimited 13. SUPPLEMENTARY NOTES See also ADA545141. Chapter 3 from e-book, Topics on the Pathology of Protozoan and...the brief ferry crossing. 2 3 • Topics on The paThology of proTozoan and invasive arThropod diseases Three severe epidemics of African trypanosomiasis

  8. Modeling effects of inter-annual variability in meteorological and land use conditions on coupled water and energy cycling in the cultivated African Sahel

    NASA Astrophysics Data System (ADS)

    Velluet, C.; Demarty, J.; Cappelaere, B.; Braud, I.; Boulain, N.; Favreau, G.; Charvet, G.; Ramier, D.; Issoufou, H.; Boucher, M.; Mainassara, I.; Chazarin, J.; Oï, M.; Yahou, H.; Benarrosh, N.; Ibrahim, M.

    2012-12-01

    In the dry tropics in general and in the African Sahel in particular, hydro-ecosystems are very sensitive to climate variability and land management. In the Niamey region of South-West Niger, a severe multi-decadal drought together with large-scale vegetation clearing coincided with an unexpected increase in surface and ground water resources. Such an apparent paradoxical situation illustrates the complex way in which climate and land cover interactions control the Sahelian water cycle dynamics. This stresses the importance of understanding and reliably modeling water/energy transfers in the local soil-plant-atmosphere system, under contrasted meteorological and surface conditions. This study investigates the effects of the inter-annual variability of meteorological and land use conditions on the coupled water and energy cycles in the cultivated Sahel over a 5-year period. This is based on a comprehensive multi-year field dataset acquired for a millet crop field and a fallow savannah, the two main land cover types of South-West Niger (Wankama catchment in the mesoscale AMMA-CATCH Niger observatory, part of the French-initiated RBV network). It includes atmospheric forcing, seasonal course of vegetation phenology, soil properties and model validation variables (net radiation, turbulent fluxes, soil heat/water profiles), for the two fields. The study area is typical of Central Sahel conditions, with 400-600 mm annual rainfall concentrated in the 4-5 month wet season. Soils are mainly sandy and prone to surface crusting, leading to a strong vertical contrast in hydrodynamic properties. The SiSPAT process-based model used solves the 1D mass and heat transfer system of equations in the soil, including vapor phase and coupled with a two-component (bare soil and vegetation) water and energy budget at the surface-atmosphere interface. The study explores whether such a model can be accurately calibrated and validated for the two sites using realistic-parameter values. The

  9. Programmable Logic Controllers.

    ERIC Educational Resources Information Center

    Insolia, Gerard; Anderson, Kathleen

    This document contains a 40-hour course in programmable logic controllers (PLC), developed for a business-industry technology resource center for firms in eastern Pennsylvania by Northampton Community College. The 10 units of the course cover the following: (1) introduction to programmable logic controllers; (2) DOS primer; (3) prerequisite…

  10. School Inclusion Programmes (SIPS)

    ERIC Educational Resources Information Center

    Drossinou-Korea, Maria; Matousi, Dimitra; Panopoulos, Nikolaos; Paraskevopoulou, Aikaterini

    2016-01-01

    The purpose of this work was to understand the school inclusion programmes (SIPs) for students with special educational needs (SEN). The methodology was conducted in the field of special education (SE) and focuses on three case studies of students who was supported by SIPs. The Targeted, Individual, Structured, Inclusion Programme for students…

  11. Young Africans Tackle Their Continent's Environmental Issues

    NASA Astrophysics Data System (ADS)

    Olwoch, Jane Mukarugwiza

    2008-11-01

    Young African Scientists Session at the Fourth International Geosphere-Biosphere Programme Congress; Cape Town, South Africa, 7 May 2008; Africa is often described as a unique and diverse continent. This is reflected in its biodiversity, economic and social circumstances, and diversity in culture and environment. The Young African Scientists (YAS) session at the International Geosphere-Biosphere Programme Congress was one of the congress's highlights. Global environmental change research in Africa was presented to an audience that included visiting international and national scientists, policy makers, and a group of schoolchildren. From the uniqueness of Africa's paleoclimate to the diversity and complexity of current and future impacts of environmental change on Africa, the session not only provided an overview of current projects but also highlighted the problems that are intertwined with poverty. This session was sponsored by the Global Change System for Analysis, Research, and Training (START).

  12. Changes in Body Fat Distribution on Dual-Energy X-Ray Absorptiometry in Black South Africans Starting First-Line Antiretroviral Therapy.

    PubMed

    Abrahams, Zulfa; Levitt, Naomi; Lesosky, Maia; Maartens, Gary; Dave, Joel

    2016-10-01

    Long-term use of antiretroviral therapy (ART) increases the risk of developing lipodystrophy. Few studies from Africa have used longitudinal data to assess the development of lipoatrophy and lipohypertrophy. We use clinical anthropometry and dual-energy X-ray absorptiometry (DEXA) to describe changes in body fat distribution over a 24-month period in individuals initiated on ART. A convenience sample of black South Africans (55 men and 132 women) were recruited and followed for 24 months after commencing ART. Body fat distribution was assessed using anthropometric measurements and DEXA scans at baseline and then at 3, 6, 12, 18, and 24 months after commencing ART. DEXA was also used to estimate abdominal visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT). Women gained more overall weight and more regional fat in all areas analyzed on DEXA scans. Women, not men, experienced a significant increasing trend in trunk fat and a significant decreasing trend in limb fat, when expressed as a percentage of total body fat. In men, the risk of developing lipoatrophy was more than two times greater than that of women, after adjusting for age, baseline body mass index, and ART regimen. Lipohypertrophy occurred similarly in men and women. VAT and SAT increased significantly in men and women, with women gaining considerably more than men. These findings are of great concern as an increased waist circumference is associated with increased mortality in HIV-infected populations. Further investigation is required to understand the mechanisms underlying the sex differences in changes in body fat distribution and its effects on cardiovascular risk.

  13. Cardiac Assessment Risk Evaluation (Care Study) of African American College Women

    ERIC Educational Resources Information Center

    Brown, Sandra C.; Geiselman, Paula J.; Copeland, Amy L.; Gordon, Carol; Dudley, Mary; Manogin, Toni; Backstedt, Carol; Pourciau, Cathi; Ghebretatios, Ghenet

    2005-01-01

    Objective: To identify physiological and psychosocial variables of young African American women that may serve as a risk factor for heart disease and to assess their health promotion programme preferences. Method: A descriptive design was used to assess the cardiovascular risk factors of 100 African American women ages 18 to 40 years, enrolled in…

  14. African Outreach Workshop 1974.

    ERIC Educational Resources Information Center

    Schmidt, Nancy J.

    This report discusses the 1974 African Outreach Workshop planned and coordinated by the African Studies Program at the University of Illinois at Urbana-Champaign. Its major aim was to assist teachers in developing curriculum units on African using materials available in their local community. A second aim was for the African Studies Program to…

  15. Africans in America.

    ERIC Educational Resources Information Center

    Hart, Ayanna; Spangler, Earl

    This book introduces African-American history and culture to children. The first Africans in America came from many different regions and cultures, but became united in this country by being black, African, and slaves. Once in America, Africans began a long struggle for freedom which still continues. Slavery, the Civil War, emancipation, and the…

  16. "We've Got You Pegged": Programme Choice in the Transition to, and Passage through, Higher Education

    ERIC Educational Resources Information Center

    Cosser, Michael; Nenweli, Sekinah

    2014-01-01

    A 2010 paper published in "Higher Education" investigated the relationship between South African Grade 12 students' programme preferences in 2001 for study in higher education, student enrolment in higher education programmes in 2002, and student graduations in 2006, devising what the author dubbed a preference-enrolment-graduation (PEG)…

  17. Amsterdam's STI/HIV Programme: An Innovative Strategy to Achieve and Enhance the Participation of Migrant Community-Based Organisations

    ERIC Educational Resources Information Center

    Wagemakers, Annemarie; van Husen, Gwen; Barrett, Jennifer B.; Koelen, Maria A.

    2015-01-01

    Objective: The STI/HIV prevention programme in Amsterdam aims to improve the sexual health of Amsterdam residents of African, Antillean, Aruban and Surinamese origins. The programme strategy is to achieve and enhance the participation of migrant community-based organisations (CBOs) in sexual health promotion through a grant scheme and by providing…

  18. SOTANCP3 Scientific Programme

    NASA Astrophysics Data System (ADS)

    2014-12-01

    The programme for the 3rd International Workshop on "State of the Art in Nuclear Cluster Physics" which was held at the KGU (Kanto Gakuin University) Kannai Media Center (8th floor of Yokohoma Media Business Center (YMBC))

  19. FAST joins Breakthrough programme

    NASA Astrophysics Data System (ADS)

    Banks, Michael

    2016-11-01

    The 180m Five-hundred-meter Aperture Spherical radio Telescope (FAST) - the world's largest single-aperture radio receiver - has become part of the Breakthrough Listen programme, which launched in July 2015 to look for intelligent life beyond Earth.

  20. Programmes in Continuing Education

    ERIC Educational Resources Information Center

    Shah, L. R.

    1976-01-01

    The various types and forms of credit and non-credit university continuing education programmes are described in these extracts from a paper presented at the Hyderabad conference on university continuing education. (ABM)

  1. IFLA's Programme of ISBDs

    ERIC Educational Resources Information Center

    Anderson, Dorothy

    1978-01-01

    The article outlines the evolution, development, and current operational programme of the ISBD's (International Standard Bibliographic Description) within the framework of IFLA (International Federation of Library Associations). (Author/JAB)

  2. Programmable Logic Application Notes

    NASA Technical Reports Server (NTRS)

    Katz, Richard

    1998-01-01

    This column will be provided each quarter as a source for reliability, radiation results, NASA capabilities, and other information on programmable logic devices and related applications. This quarter's column will include some announcements and some recent radiation test results and evaluations of interest. Specifically, the following topics will be covered: the Military and Aerospace Applications of Programmable Devices and Technologies Conference to be held at GSFC in September, 1998, proton test results, and some total dose results.

  3. Programmable Logic Application Notes

    NASA Technical Reports Server (NTRS)

    Katz, Richard

    1998-01-01

    This column will be provided each quarter as a source for reliability, radiation results, NASA capabilities, and other information on programmable logic devices and related applications. This quarter's column will include some announcements and some recent radiation test results and evaluations of interest. Specifically, the following topics will be covered: the Military and Aerospace Applications of Programmable Devices and Technologies Conference to be held at GSFC in September, 1998, proton test results, heavy ion test results, and some total dose results.

  4. Field Evaluation of Programmable Thermostats

    SciTech Connect

    Sachs, O.; Tiefenbeck, V.; Duvier, C.; Qin, A.; Cheney, K.; Akers, C.; Roth, K.

    2012-12-01

    Prior research suggests that poor programmable thermostats usability may prevent their effective use to save energy. We hypothesized that home occupants with a high-usability thermostats would be more likely to use them to save energy than people with a basic thermostat. We randomly installed a high-usability thermostat in half the 77 apartments of an affordable housing complex, installing a basic thermostat in the other half. During the heating season, we collected space temperature and furnace on-off data to evaluate occupant interaction with the thermostats, foremost nighttime setbacks. We found that thermostat usability did not influence energy-saving behaviors, finding no significant difference in temperature maintained among apartments with high- and low-usability thermostats.

  5. Bioenergy and African transformation.

    PubMed

    Lynd, Lee R; Sow, Mariam; Chimphango, Annie Fa; Cortez, Luis Ab; Brito Cruz, Carlos H; Elmissiry, Mosad; Laser, Mark; Mayaki, Ibrahim A; Moraes, Marcia Afd; Nogueira, Luiz Ah; Wolfaardt, Gideon M; Woods, Jeremy; van Zyl, Willem H

    2015-01-01

    Among the world's continents, Africa has the highest incidence of food insecurity and poverty and the highest rates of population growth. Yet Africa also has the most arable land, the lowest crop yields, and by far the most plentiful land resources relative to energy demand. It is thus of interest to examine the potential of expanded modern bioenergy production in Africa. Here we consider bioenergy as an enabler for development, and provide an overview of modern bioenergy technologies with a comment on application in an Africa context. Experience with bioenergy in Africa offers evidence of social benefits and also some important lessons. In Brazil, social development, agricultural development and food security, and bioenergy development have been synergistic rather than antagonistic. Realizing similar success in African countries will require clear vision, good governance, and adaptation of technologies, knowledge, and business models to myriad local circumstances. Strategies for integrated production of food crops, livestock, and bioenergy are potentially attractive and offer an alternative to an agricultural model featuring specialized land use. If done thoughtfully, there is considerable evidence that food security and economic development in Africa can be addressed more effectively with modern bioenergy than without it. Modern bioenergy can be an agent of African transformation, with potential social benefits accruing to multiple sectors and extending well beyond energy supply per se. Potential negative impacts also cut across sectors. Thus, institutionally inclusive multi-sector legislative structures will be more effective at maximizing the social benefits of bioenergy compared to institutionally exclusive, single-sector structures.

  6. First-Year Village: Experimenting with an African Model for First-Year Adjustment and Support in South Africa

    ERIC Educational Resources Information Center

    Speckman, McGlory

    2016-01-01

    Predicated on the principles of success and contextuality, this chapter shares an African perspective on a first-year adjustment programme, known as First-Year Village, including its potential and challenges in establishing it.

  7. African Americans and Glaucoma

    MedlinePlus

    ... Involved News About Us Donate In This Section African Americans and Glaucoma email Send this article to a ... glaucoma is the leading cause of blindness in African Americans. Half of those with glaucoma don't know ...

  8. Black African Traditional Mathematics

    ERIC Educational Resources Information Center

    Zaslavsky, Claudia

    1970-01-01

    Discusses the traditional number systems and the origin of the number names used by several African peoples living south of the Sahara. Also included are limitations in African mathematical development, and possible topics for research. (RP)

  9. The UCAR Africa Initiative: Enabling African Solutions to African Needs

    NASA Astrophysics Data System (ADS)

    Pandya, R.; Bruintjes, R.; Foote, B.; Heck, S.; Hermann, S.; Hoswell, L.; Konate, M.; Kucera, P.; Laing, A.; Lamptey, B.; Moncrieff, M.; Ramamurthy, M.; Roberts, R.; Spangler, T.; Traoré, A.; Yoksas, T.; Warner, T.

    2007-12-01

    The University Corporation for Atmospheric Research (UCAR) Africa Initiative (AI) is a coordinated effort aimed at building sustainable partnerships between UCAR and African institutions in order to pursue research and applications for the benefit of the African people. The initiative is based on four fundamental operating principles, concisely summarized by the overall philosophy of enabling African solutions to African needs. The four principles are: • Collaborate with African institutions • Focus on institutional capacity building and research support • Explore science research themes critical to Africa and important for the world • Leverage the research infrastructure in UCAR to add value These principles are realized in a set of pilot activities, chosen for their high probability of short-term results and ability to set the stage for longer-term collaboration. The three pilot activities are listed below. 1. A modest radar network and data-distribution system in Mali and Burkina Faso, including a data-sharing MOU between the Mail and Burkina Faso Weather Services. 2. A partnership among UCAR, the Ghana Meteorological Agency, and the Ghana university community to develop an operational Weather Research and Forecasting (WRF) model for West Africa. The output is used by researchers and operational forecasters in Africa. Model output is also part of a demonstration project that aims to allow humanitarian agencies to share geo-referenced information in Africa via a web portal. 3. A workshop in Ouagadougou, Burkina Faso from April 2-6, 2007, with the theme Improving Lives by Understanding Weather. The workshop, co-organized with Programme SAAGA and the Commité Permanent Inter-Etats de Lutte Contre la Sécheresse dans le Sahel (CILSS), included over 80 participants from 18 countries, and produced a set of recommendations for continued collaboration. Our presentation will provide an update of these pilot activities and point to future directions. Recognizing

  10. The African Connection

    ERIC Educational Resources Information Center

    Oguntoyinbo, Lekan

    2012-01-01

    From student and faculty exchanges to joint research projects, U.S. universities maintain a broad spectrum of collaborative relationships with African universities. It's unclear how many U.S. colleges and universities have partnerships with African universities. The African Studies Association, an organization of scholars, doesn't keep that kind…

  11. Programmable physiological infusion

    NASA Technical Reports Server (NTRS)

    Howard, W. H.; Young, D. R.; Adachi, R. R. (Inventor)

    1974-01-01

    A programmable physiological infusion device and method are provided wherein a program source, such as a paper tape, is used to actuate an infusion pump in accordance with a desired program. The system is particularly applicable for dispensing calcium in a variety of waveforms.

  12. Work Programme, 2014

    ERIC Educational Resources Information Center

    Cedefop - European Centre for the Development of Vocational Training, 2014

    2014-01-01

    Cedefop's work programme 2014 constitutes an ambitious attempt to preserve its core activities, respond to new requests and ensure previous quality standards while respecting resource constraints. Nevertheless, it also reflects the risk that the Centre's ability to deliver its mission and increasing demands may be affected by further budgetary…

  13. Backgrounder: The MAB Programme.

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Paris (France). Office of Public Information.

    The Man and the Biosphere Programme (MAB) was launched in November 1971 under the auspices of Unesco. Its aim is to help to develop scientific knowledge with a view to the rational management and conservation of natural resources, to train qualified personnel in this field, and to disseminate the knowledge acquired both to the decision-makers and…

  14. Developing Online Doctoral Programmes

    ERIC Educational Resources Information Center

    Chipere, Ngoni

    2015-01-01

    The objectives of the study were to identify best practices in online doctoral programming and to synthesise these practices into a framework for developing online doctoral programmes. The field of online doctoral studies is nascent and presents challenges for conventional forms of literature review. The literature was therefore reviewed using a…

  15. Computer Programmer/Analyst.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This publication contains 25 subjects appropriate for use in a competency list for the occupation of computer programmer/analyst, 1 of 12 occupations within the business/computer technologies cluster. Each unit consists of a number of competencies; a list of competency builders is provided for each competency. Titles of the 25 units are as…

  16. Conceptualizing Programme Evaluation

    ERIC Educational Resources Information Center

    Hassan, Salochana

    2013-01-01

    The main thrust of this paper deals with the conceptualization of theory-driven evaluation pertaining to a tutor training programme. Conceptualization of evaluation, in this case, is an integration between a conceptualization model as well as a theoretical framework in the form of activity theory. Existing examples of frameworks of programme…

  17. Programmable Logic Application Notes

    NASA Technical Reports Server (NTRS)

    Katz, Richard

    2000-01-01

    This column will be provided each quarter as a source for reliability, radiation results, NASA capabilities, and other information on programmable logic devices and related applications. This quarter will start a series of notes concentrating on analysis techniques with this issues section discussing worst-case analysis requirements.

  18. Programmable Logic Application Notes

    NASA Technical Reports Server (NTRS)

    Katz, Richard; Day, John H. (Technical Monitor)

    2001-01-01

    This report will be provided each quarter as a source for reliability, radiation results, NASA capabilities, and other information on programmable logic devices and related applications. This quarter will continue a series of notes concentrating on analysis techniques with this issue's section discussing the use of Root-Sum-Square calculations for digital delays.

  19. Programmable calculator stress analysis

    SciTech Connect

    Van Gulick, L.A.

    1983-01-01

    Advanced programmable alphanumeric calculators are well suited for closed-form calculation of pressure-vessel stresses. They offer adequate computing power, portability, special programming features, and simple interactive execution procedures. Representative programs that demonstrate calculator capabilities are presented. Problems treated are stress and strength calculations in thick-walled pressure vessels and the computation of stresses near head/pressure-vessel junctures.

  20. Production of high specific activity (195m) Pt-cisplatinum at South African Nuclear Energy Corporation for Phase 0 clinical trials in healthy individual subjects.

    PubMed

    Zeevaart, Jan Rijn; Wagener, Judith; Marjanovic-Painter, Biljana; Sathekge, Mike; Soni, Nischal; Zinn, Christa; Perkins, Gary; Smith, Suzanne V

    2013-01-01

    Platinum agents continue to be the main chemotherapeutic agents used in the first-line and second-line treatments of cancer patients. It is important to fully understand the biological profile of these compounds in order to optimize the dose given to each patient. In a joint project with the Australian Nuclear Science and Technology Organisation and the Nuclear Medicine Department at Steve Biko Academic Hospital, South African Nuclear Energy Corporation synthesized and supplied (195m) Pt-cisplatinum (commonly referred to as cisplatin) for a clinical pilot study on healthy volunteers. Enriched (194) PtCl2 was prepared by digestion of enriched (194) Pt metal (>95%) followed by thermal decomposition over a 3 h period. The (194) PtCl2 was then placed in a quartz ampoule, was irradiated in SAFARI-1 up to 200 h, then decay cooled for a minimum of 34 h prior to synthesis of final product. (195m) Pt(NH3 )2 I2 , formed with the addition of KI and NH4 OH, was converted to the diaqua species [(195m) Pt(NH3 )2 (H2 O)2 ](2+) by reaction with AgNO3 . The conversion to (195m) Pt-cisplatinum was completed by the addition of concentrated HCl. The final product yield was 51.7% ± 5.2% (n = 5). The chemical and radionuclidic purity in each case was >95%. The use of a high flux reactor position affords a higher specific activity product (15.9 ± 2.5 MBq/mg at end of synthesis) than previously found (5 MBq/mg). Volunteers received between 108 and 126 MBq of radioactivity, which is equivalent to 6.8-10.0 mg of carrier cisplatinum. Such high specific activities afforded a significant reduction (~50%) in the chemical dose of a carrier cisplatinum, which represents less than 10% of a typical chemotherapeutic dose given to patients. A good manufacturing practice GMP compliant product was produced and was administered to 10 healthy volunteers as part of an ethically approved Phase 0 clinical trial. The majority of the injected activity 27.5% ± 5.8% was excreted

  1. Cultural Sustainability of African Canadian Heritage: Engaging Students in Learning, the Past, the Present and the Future

    ERIC Educational Resources Information Center

    Finlayson, Maureen

    2015-01-01

    The focus of this research is cultural sustainability of African Canadian heritage. Research literature informs us that engaging youth in educational programmes at the local level is fundamental to sustainability discussions. Furthermore, students must be actively engaged in their African Canadian past, present and future education. However, there…

  2. Programmable calculator stress analysis

    SciTech Connect

    Van Gulick, L.A.

    1983-01-01

    This paper assesses the suitability of advanced programmable alphanumeric calculators for closed form calculation of pressure vessel stresses and offers, as their advantages, adequate computing power, portability, special programming features, and simple interactive execution procedures. Representative programs which demonstrate their capacities are presented. Problems dealing with stress and strength calculations in thick-walled pressure vessels and with the computation of stresses near head/pressure vessel junctures are treated. Assessed favorably in this paper as useful contributors to computeraided design of pressure vessels, programmable alphanumeric calculators have areas of implementation in checking finite element results, aiding in the development of an intuitive understanding of stresses and their parameter dependencies, and evaluating rapidly a variety of preliminary designs.

  3. The Insidious Nature of 'Hard-Core' Alternative Conceptions: Implications for the constructivist research programme of patterns in high school students' and pre-service teachers' thinking about ionisation energy

    NASA Astrophysics Data System (ADS)

    Taber, Keith S.; Tan, Kim Chwee Daniel

    2011-01-01

    The present study contributes to the constructivist research programme (RP) into learning science by comparing patterns in responses from two groups of learners-senior high school students and pre-service teachers-in the same educational context (Singapore), to a diagnostic instrument relating to the topic of ionisation energies. This topic is currently included in the curriculum for 16- to 19-year-old students studying chemistry in Singapore (and elsewhere). The comparison shows that: (1) although graduate pre-service teachers offered some types of incorrect responses less frequently than high school students; (2) they retained high levels of alternative conceptions commonly found among high school students; and (3) of particular note, certain alternative conceptions were found to be more common among the graduates. This suggests the intuitive appeal of certain alternative conceptions is such that they can readily be reproduced down 'generations' of learners. The findings are explored in terms of a range of conceptual resources that have been developed within the constructivist RP. The analysis suggests that the curriculum sets out inappropriate target knowledge for senior high school students, given the nature of the subject matter and the prior learning of the students. It is also suggested that it may be fruitful to consider conceptual learning in terms analogous to the RP found in science, and that from this perspective certain insidious alternative conceptions can be understood as derived from commitments that are taken for granted and protected from explicit challenge by a protective belt of refutable auxiliary conceptions.

  4. Increasing Equity and Compensating Historically Academically Disadvantaged Students at a Tertiary Level: Benefits of a Science Foundation Programme as a Way of Access

    ERIC Educational Resources Information Center

    Downs, Colleen

    2010-01-01

    An approach to remedy the scarcity of Black students within the sciences at southern African universities has been the development of access programmes. There has been little acknowledgement of the contribution of these access programmes in increasing the quantity and quality of graduates. The contribution made by the Science Foundation Programme…

  5. NSF announces diversity programme

    NASA Astrophysics Data System (ADS)

    Kruesi, Liz

    2016-04-01

    The US National Science Foundation (NSF) has initiated a new funding programme that will create schemes to increase diversity in science, technology, engineering and mathematics (STEM). The initiative - Inclusion across the Nation of Communities of Learners of Underrepresented Discoverers in Engineering and Science (INCLUDES) - aims to increase the participation of women, those with a low socioeconomic status, people with disabilities and those from minority racial backgrounds.

  6. Punch Card Programmable Microfluidics

    PubMed Central

    Korir, George; Prakash, Manu

    2015-01-01

    Small volume fluid handling in single and multiphase microfluidics provides a promising strategy for efficient bio-chemical assays, low-cost point-of-care diagnostics and new approaches to scientific discoveries. However multiple barriers exist towards low-cost field deployment of programmable microfluidics. Incorporating multiple pumps, mixers and discrete valve based control of nanoliter fluids and droplets in an integrated, programmable manner without additional required external components has remained elusive. Combining the idea of punch card programming with arbitrary fluid control, here we describe a self-contained, hand-crank powered, multiplex and robust programmable microfluidic platform. A paper tape encodes information as a series of punched holes. A mechanical reader/actuator reads these paper tapes and correspondingly executes operations onto a microfluidic chip coupled to the platform in a plug-and-play fashion. Enabled by the complexity of codes that can be represented by a series of holes in punched paper tapes, we demonstrate independent control of 15 on-chip pumps with enhanced mixing, normally-closed valves and a novel on-demand impact-based droplet generator. We demonstrate robustness of operation by encoding a string of characters representing the word “PUNCHCARD MICROFLUIDICS” using the droplet generator. Multiplexing is demonstrated by implementing an example colorimetric water quality assays for pH, ammonia, nitrite and nitrate content in different water samples. With its portable and robust design, low cost and ease-of-use, we envision punch card programmable microfluidics will bring complex control of microfluidic chips into field-based applications in low-resource settings and in the hands of children around the world. PMID:25738834

  7. Punch card programmable microfluidics.

    PubMed

    Korir, George; Prakash, Manu

    2015-01-01

    Small volume fluid handling in single and multiphase microfluidics provides a promising strategy for efficient bio-chemical assays, low-cost point-of-care diagnostics and new approaches to scientific discoveries. However multiple barriers exist towards low-cost field deployment of programmable microfluidics. Incorporating multiple pumps, mixers and discrete valve based control of nanoliter fluids and droplets in an integrated, programmable manner without additional required external components has remained elusive. Combining the idea of punch card programming with arbitrary fluid control, here we describe a self-contained, hand-crank powered, multiplex and robust programmable microfluidic platform. A paper tape encodes information as a series of punched holes. A mechanical reader/actuator reads these paper tapes and correspondingly executes operations onto a microfluidic chip coupled to the platform in a plug-and-play fashion. Enabled by the complexity of codes that can be represented by a series of holes in punched paper tapes, we demonstrate independent control of 15 on-chip pumps with enhanced mixing, normally-closed valves and a novel on-demand impact-based droplet generator. We demonstrate robustness of operation by encoding a string of characters representing the word "PUNCHCARD MICROFLUIDICS" using the droplet generator. Multiplexing is demonstrated by implementing an example colorimetric water quality assays for pH, ammonia, nitrite and nitrate content in different water samples. With its portable and robust design, low cost and ease-of-use, we envision punch card programmable microfluidics will bring complex control of microfluidic chips into field-based applications in low-resource settings and in the hands of children around the world.

  8. The "Uptake" of a Sport-for-Development Programme in South Africa

    ERIC Educational Resources Information Center

    Burnett, Cora

    2015-01-01

    This article reports on the "uptake" dynamics and resultant manifestations of a school-based, incentive-driven, sport-for-development programme in the South African context of poverty. The ecological systems theory of Brofenbrenner, the theory of complexity and a neo-liberal framework underpin the social constructions of local meanings…

  9. An E-Learning Collaborative Environment: Learning within a Masters in Education Programme

    ERIC Educational Resources Information Center

    Hendricks, Natheem

    2012-01-01

    This article contributes to the debate about e-learning as a form of adult education. It is based on the experiences of South African students, describes and analyses group interaction in an intercontinental Masters in Adult Education Programme which uses a computer electronic platform as the primary medium for learning and teaching. The article…

  10. Understanding Non-Traditional PhD Students Habitus--Implications for PhD Programmes

    ERIC Educational Resources Information Center

    Naidoo, Devika

    2015-01-01

    Against the background of vast changes in doctoral education and the emergence of non-traditional doctoral programmes, this paper investigates the habitus of non-traditional PhD students at a South African university. Bourdieu's conceptual tool of habitus informed the study. In-depth and open-ended interviews were conducted with 10 non-traditional…

  11. Programmable matter by folding

    PubMed Central

    Hawkes, E.; An, B.; Benbernou, N. M.; Tanaka, H.; Kim, S.; Demaine, E. D.; Rus, D.; Wood, R. J.

    2010-01-01

    Programmable matter is a material whose properties can be programmed to achieve specific shapes or stiffnesses upon command. This concept requires constituent elements to interact and rearrange intelligently in order to meet the goal. This paper considers achieving programmable sheets that can form themselves in different shapes autonomously by folding. Past approaches to creating transforming machines have been limited by the small feature sizes, the large number of components, and the associated complexity of communication among the units. We seek to mitigate these difficulties through the unique concept of self-folding origami with universal crease patterns. This approach exploits a single sheet composed of interconnected triangular sections. The sheet is able to fold into a set of predetermined shapes using embedded actuation. To implement this self-folding origami concept, we have developed a scalable end-to-end planning and fabrication process. Given a set of desired objects, the system computes an optimized design for a single sheet and multiple controllers to achieve each of the desired objects. The material, called programmable matter by folding, is an example of a system capable of achieving multiple shapes for multiple functions. PMID:20616049

  12. Programmability in AIPS++

    NASA Technical Reports Server (NTRS)

    Hjellming, R. M.

    1992-01-01

    AIPS++ is an Astronomical Information Processing System being designed and implemented by an international consortium of NRAO and six other radio astronomy institutions in Australia, India, the Netherlands, the United Kingdom, Canada, and the USA. AIPS++ is intended to replace the functionality of AIPS, to be more easily programmable, and will be implemented in C++ using object-oriented techniques. Programmability in AIPS++ is planned at three levels. The first level will be that of a command-line interpreter with characteristics similar to IDL and PV-Wave, but with an intensive set of operations appropriate to telescope data handling, image formation, and image processing. The third level will be in C++ with extensive use of class libraries for both basic operations and advanced applications. The third level will allow input and output of data between external FORTRAN programs and AIPS++ telescope and image databases. In addition to summarizing the above programmability characteristics, this talk will given an overview of the classes currently being designed for telescope data calibration and editing, image formation, and the 'toolkit' of mathematical 'objects' that will perform most of the processing in AIPS++.

  13. Smart programmable wireless microaccelerometers

    NASA Astrophysics Data System (ADS)

    Varadan, Vijay K.; Subramanian, Hareesh; Varadan, Vasundara V.

    1998-07-01

    The integration of MEMS, SAW devices and required microelectronics and conformal antenna to realize a programmable wireless accelerometer is presented in this paper. This unique combination of technologies results in a novel accelerometer that can be remotely sensed by a microwave system with the advantage of no power requirements at the sensor site. The microaccelerometer presented is simple in construction and easy to manufacture with existing silicon micromachining techniques. Programmable accelerometers can be achieved with splitfinger interdigital transducers (IDTs) as reflecting structures. If IDTs are short circuited or capacitively loaded, the wave propagates without any reflection whereas in an open circuit configuration, the IDTs reflect the incoming SAW signal. The programmable accelerometers can thus be achieved by using an external circuitry on a semiconductor chip using hybrid technology. The relatively small size of the sensor makes it an ideal conformal sensor. The accelerometer finds application as air bag deployment sensors, vibration sensors for noise control, deflection and strain sensors, inertial and dimensional positioning systems, ABS/traction control, smart suspension, active roll stabilization and four wheel steering. The wireless accelerometer is very attractive to study the response of a `dummy' in automobile crash test.

  14. The African superswell

    NASA Technical Reports Server (NTRS)

    Nyblade, Andrew A.; Robinson, Scott W.

    1994-01-01

    Maps of residual bathymetry in the ocean basins around the African continent reveal a broad bathymetric swell in the southeastern Atlantic Ocean with an amplitude of about 500 m. We propose that this region of anomalously shallow bathymetry, together with the contiguous eastern and southern African plateaus, form a superswell which we refer to as the African superswell. The origin of the African superswell is uncertain. However, rifting and volcanism in eastern Africa, as well as heat flow measurements in southern Africa and the southeastern Atlantic Ocean, suggest that the superswell may be attributed, at least in part, to heating of the lithosphere.

  15. A programmable Fortran preprocessor

    SciTech Connect

    Rosing, M.

    1995-06-01

    A programmable Fortran preprocessor is described. It allows users to define compile time operations that can examine and modify the source tree before it is compiled with a traditional compiler. This intermediate step allows the definition of routines and operations that adapt to the context in which they are used. Context sensitive operations increase the flexibility of abstractions that can be built without degrading efficiency, as compared to using traditional run time based abstractions such as libraries or objects. The preprocessor is described briefly along with an example of how it is used to add CMFortran array operations to Fortran77. Other preprocessors that have been implemented are also briefly described.

  16. Flexible programmable logic module

    DOEpatents

    Robertson, Perry J.; Hutchinson, Robert L.; Pierson, Lyndon G.

    2001-01-01

    The circuit module of this invention is a VME board containing a plurality of programmable logic devices (PLDs), a controlled impedance clock tree, and interconnecting buses. The PLDs are arranged to permit systolic processing of a problem by offering wide data buses and a plurality of processing nodes. The board contains a clock reference and clock distribution tree that can drive each of the PLDs with two critically timed clock references. External clock references can be used to drive additional circuit modules all operating from the same synchronous clock reference.

  17. Programmable Logic Application Notes

    NASA Technical Reports Server (NTRS)

    Katz, Richard

    1999-01-01

    This column will be provided each quarter as a source for reliability, radiation results, NASA capabilities, and other information on programmable logic devices and related applications. This quarter the focus is on some experimental data on low voltage drop out regulators to support mixed 5 and 3.3 volt systems. A discussion of the Small Explorer WIRE spacecraft will also be given. Lastly, we show take a first look at robust state machines in Hardware Description Languages (VHDL) and their use in critical systems. If you have information that you would like to submit or an area you would like discussed or researched, please give me a call or e-mail.

  18. NASCAP programmer's reference manual

    NASA Technical Reports Server (NTRS)

    Mandell, M. J.; Stannard, P. R.; Katz, I.

    1993-01-01

    The NASA Charging Analyzer Program (NASCAP) is a computer program designed to model the electrostatic charging of complicated three-dimensional objects, both in a test tank and at geosynchronous altitudes. This document is a programmer's reference manual and user's guide. It is designed as a reference to experienced users of the code, as well as an introduction to its use for beginners. All of the many capabilities of NASCAP are covered in detail, together with examples of their use. These include the definition of objects, plasma environments, potential calculations, particle emission and detection simulations, and charging analysis.

  19. Selection in backcross programmes

    PubMed Central

    Hospital, Frédéric

    2005-01-01

    Backcrossing is a well-known and long established breeding scheme where a characteristic is introgressed from a donor parent into the genomic background of a recurrent parent. The various uses of backcrossing in modern genetics, particularly with the help of molecular markers, are reviewed here. Selection in backcross programmes is used to either improve the genetic value of plant and animal populations or fine map quantitative trait loci. Both cases are helpful in our understanding of the genetic bases of quantitative traits variation. PMID:16048792

  20. Copernicus Earth observation programme

    NASA Astrophysics Data System (ADS)

    Žlebir, Silvo

    European Earth observation program Copernicus is an EU-wide programme that integrates satellite data, in-situ data and modeling to provide user-focused information services to support policymakers, researchers, businesses and citizens. Land monitoring service and Emergency service are fully operational already, Atmosphere monitoring service and Marine environment monitoring service are preoperational and will become fully operational in the following year, while Climate change service and Security service are in an earlier development phase. New series of a number of dedicated satellite missions will be launched in the following years, operated by the European Space Agency and EUMETSAT, starting with Sentinel 1A satellite early this year. Ground based, air-borne and sea-borne in-situ data are provided by different international networks and organizations, EU member states networks etc. European Union is devoting a particular attention to secure a sustainable long-term operational provision of the services. Copernicus is also stated as a European Union’s most important contribution to Global Earth Observation System of Systems (GEOSS). The status and the recent development of the Copernicus programme will be presented, together with its future perspective. As Copernicus services have already demonstrated their usability and effectiveness, some interesting cases of their deployment will be presented. Copernicus free and open data policy, supported by a recently adopted EU legislative act, will also be presented.

  1. Programmable digital modem

    NASA Astrophysics Data System (ADS)

    Poklemba, John J.

    1991-11-01

    The design of the Programmable Digital Modem (PDM) is outlined. The PDM will be capable of operating with numerous modulation techniques including: 2-, 4-, 8- and 16-ary phase shift keying (PSK), minimum shift keying (MSK), and 16-ary quadrature amplitude modulation (QAM), with spectral occupancy from 1.2x to 2x the data symbol rate. It will also be programmable for transmission rates ranging from 2.34 to 300 Mbit/s, where the maximum symbol rate is 75 Msymbol/s. Furthermore, these parameters will be executable in independent burst, dependent burst, or continuous mode. In dependent burst mode the carrier and clock oscillator sources are common from burst to burst. To achieve as broad a set of requirements as these, it is clear that the essential signal processing must be digital. In addition, to avoid hardware changes when the operational parameters are changed, a fixed interface to an analog intermediate frequency (IF) is necessary for transmission; and, common system level architectures are necessary for the modulator and demodulator. Lastly, to minimize size and power, as much of the design as possible will be implemented with application specific integrated circuit (ASIC) chips.

  2. Programmable digital modem

    NASA Technical Reports Server (NTRS)

    Poklemba, John J.

    1991-01-01

    The design of the Programmable Digital Modem (PDM) is outlined. The PDM will be capable of operating with numerous modulation techniques including: 2-, 4-, 8- and 16-ary phase shift keying (PSK), minimum shift keying (MSK), and 16-ary quadrature amplitude modulation (QAM), with spectral occupancy from 1.2x to 2x the data symbol rate. It will also be programmable for transmission rates ranging from 2.34 to 300 Mbit/s, where the maximum symbol rate is 75 Msymbol/s. Furthermore, these parameters will be executable in independent burst, dependent burst, or continuous mode. In dependent burst mode the carrier and clock oscillator sources are common from burst to burst. To achieve as broad a set of requirements as these, it is clear that the essential signal processing must be digital. In addition, to avoid hardware changes when the operational parameters are changed, a fixed interface to an analog intermediate frequency (IF) is necessary for transmission; and, common system level architectures are necessary for the modulator and demodulator. Lastly, to minimize size and power, as much of the design as possible will be implemented with application specific integrated circuit (ASIC) chips.

  3. CAMAC modular programmable function generator

    SciTech Connect

    Turner, G.W.; Suehiro, S.; Hendricks, R.W.

    1980-12-01

    A CAMAC modular programmable function generator has been developed. The device contains a 1024 word by 12-bit memory, a 12-bit digital-to-analog converter with a 600 ns settling time, an 18-bit programmable frequency register, and two programmable trigger output registers. The trigger registers can produce programmed output logic transitions at various (binary) points in the output function curve, and are used to synchronize various other data acquisition devices with the function curve.

  4. Programmable pH buffers

    DOEpatents

    Gough, Dara Van; Huber, Dale L.; Bunker, Bruce C.; Roberts, Mark E.

    2017-01-24

    A programmable pH buffer comprises a copolymer that changes pK.sub.a at a lower critical solution temperature (LCST) in water. The copolymer comprises a thermally programmable polymer that undergoes a hydrophobic-to-hydrophilic phase change at the LCST and an electrolytic polymer that exhibits acid-base properties that are responsive to the phase change. The programmable pH buffer can be used to sequester CO.sub.2 into water.

  5. Electrically-programmable diffraction grating

    DOEpatents

    Ricco, Antonio J.; Butler, Michael A.; Sinclair, Michael B.; Senturia, Stephen D.

    1998-01-01

    An electrically-programmable diffraction grating. The programmable grating includes a substrate having a plurality of electrodes formed thereon and a moveable grating element above each of the electrodes. The grating elements are electrostatically programmable to form a diffraction grating for diffracting an incident beam of light as it is reflected from the upper surfaces of the grating elements. The programmable diffraction grating, formed by a micromachining process, has applications for optical information processing (e.g. optical correlators and computers), for multiplexing and demultiplexing a plurality of light beams of different wavelengths (e.g. for optical fiber communications), and for forming spectrometers (e.g. correlation and scanning spectrometers).

  6. Understanding African American Males

    ERIC Educational Resources Information Center

    Bell, Edward Earl

    2010-01-01

    The purpose of this study was to assess the socialization skills, self-esteem, and academic readiness of African American males in a school environment. Discussions with students and the School Perceptions Questionnaire provided data for this investigation. The intended targets for this investigation were African American students; however, there…

  7. Africans Away from Home.

    ERIC Educational Resources Information Center

    Clarke, John Henrik

    Africans who were brought across the Atlantic as slaves never fully adjusted to slavery or accepted its inevitability. Resistance began on board the slave ships, where many jumped overboard or committed suicide. African slaves in South America led the first revolts against tyranny in the New World. The first slave revolt in the Caribbean occurred…

  8. Educating African American Males

    ERIC Educational Resources Information Center

    Bell, Edward E.

    2010-01-01

    Background: Schools across America spend money, invest in programs, and sponsor workshops, offer teacher incentives, raise accountability standards, and even evoke the name of Obama in efforts to raise the academic achievement of African American males. Incarceration and college retention rates point to a dismal plight for many African American…

  9. 16 Extraordinary African Americans.

    ERIC Educational Resources Information Center

    Lobb, Nancy

    This collection for children tells the stories of 16 African Americans who helped make America what it is today. African Americans can take pride in the heritage of these contributors to society. Biographies are given for the following: (1) Sojourner Truth, preacher and abolitionist; (2) Frederick Douglass, abolitionist; (3) Harriet Tubman, leader…

  10. Keeping African Masks Real

    ERIC Educational Resources Information Center

    Waddington, Susan

    2012-01-01

    Art is a good place to learn about our multicultural planet, and African masks are prized throughout the world as powerfully expressive artistic images. Unfortunately, multicultural education, especially for young children, can perpetuate stereotypes. Masks taken out of context lose their meaning and the term "African masks" suggests that there is…

  11. Energy.

    ERIC Educational Resources Information Center

    Online-Offline, 1998

    1998-01-01

    This issue focuses on the theme of "Energy," and describes several educational resources (Web sites, CD-ROMs and software, videos, books, activities, and other resources). Sidebars offer features on alternative energy, animal energy, internal combustion engines, and energy from food. Subthemes include harnessing energy, human energy, and…

  12. Programmable Cadence Timer

    NASA Technical Reports Server (NTRS)

    Hall, William A.; Gilbert, John

    1990-01-01

    Electronic metronome paces users through wide range of exercise routines. Conceptual programmable cadence timer provides rhythmic aural and visual cues. Timer automatically changes cadence according to program entered by the user. It also functions as clock, stopwatch, or alarm. Modular pacer operated as single unit or as two units. With audiovisual module moved away from base module, user concentrates on exercise cues without distraction from information appearing on the liquid-crystal display. Variety of uses in rehabilitative medicine, experimental medicine, sports, and gymnastics. Used in intermittent positive-pressure breathing treatment, in which patient must rhythmically inhale and retain medication delivered under positive pressure; and in incentive spirometer treatment, in which patient must inhale maximally at regular intervals.

  13. Neotropical Africanized honey bees have African mitochondrial DNA.

    PubMed

    Smith, D R; Taylor, O R; Brown, W M

    1989-05-18

    Non-indigenous African honey bees have invaded most of South and Central America in just over 30 years. The genetic composition of this population and the means by which it rapidly colonizes new territory remain controversial. In particular, it has been unclear whether this 'Africanized' population has resulted from interbreeding between African and domestic European bees, or is an essentially pure African population. Also, it has not been known whether this population expanded primarily by female or by male migration. Restriction site mapping of 62 mitochondrial DNAs of African bees from Brazil, Venezuela and Mexico reveals that 97% were of African (Apis mellifera scutellata) type. Although neotropical European apiary populations are rapidly Africanized by mating with neotropical African males, there is little reciprocal gene flow to the neotropical African population through European females. These are the first genetic data to indicate that the neotropical African population could be expanding its range by female migration.

  14. Japan's Eco-School Programme

    ERIC Educational Resources Information Center

    Mori, Masayuki

    2007-01-01

    Since 1997, several ministries in Japan have collaborated on an eco-school programme, which applies to both newly constructed and renovated school buildings, in an effort to make its schools more environmentally friendly. The programme equips school buildings with ecological features such as photovoltaic cells, solar thermal collectors, other new…

  15. General purpose programmable accelerator board

    DOEpatents

    Robertson, Perry J.; Witzke, Edward L.

    2001-01-01

    A general purpose accelerator board and acceleration method comprising use of: one or more programmable logic devices; a plurality of memory blocks; bus interface for communicating data between the memory blocks and devices external to the board; and dynamic programming capabilities for providing logic to the programmable logic device to be executed on data in the memory blocks.

  16. Programmable Logic Controllers. Teacher Edition.

    ERIC Educational Resources Information Center

    Rauh, Bob; Kaltwasser, Stan

    These materials were developed for a seven-unit secondary or postsecondary education course on programmable logic controllers (PLCs) that treats most of the skills needed to work effectively with PLCs as programming skills. The seven units of the course cover the following topics: fundamentals of programmable logic controllers; contracts, timers,…

  17. Programmable hydrogenation of graphene for novel nanocages

    NASA Astrophysics Data System (ADS)

    Zhang, Liuyang; Zeng, Xiaowei; Wang, Xianqiao

    2013-11-01

    Folded graphene has exhibited novel electrical and mechanical properties unmatched by pristine graphene, which implies that morphology of graphene adds the dimensionality of design space to tailor its properties. However, how to overcome the energy barrier of the folding process to fold the graphene with the specific morphology remains unexplored. Here we propose a programmable chemical functionalization by doping a pristine graphene sheet in a certain pattern with hydrogen atoms to precisely control its folding morphology. Molecular dynamics simulation has been performed to create a cross-shaped cubic graphene nanocage encapsulating a biomolecule by warping the top graphene layer downward and the bottom graphene layer upward to mimic the drug delivery vehicle. Such a paradigm, programmable enabled graphene nanocage, opens up a new avenue to control the 3D architecture of folded graphene and therefore provides a feasible way to exploit and fabricate the graphene-based unconventional nanomaterials and nanodevices for drug delivery.

  18. Energy Efficiency in India: Challenges and Initiatives

    ScienceCinema

    Ajay Mathur

    2016-07-12

    May 13, 2010 EETD Distinguished Lecture: Ajay Mathur is Director General of the Bureau of Energy Efficiency, and a member of the Prime Minister's Council on Climate Change. As Director General of BEE, Dr. Mathur coordinates the national energy efficiency programme, including the standards and labeling programme for equipment and appliances; the energy conservation building code; the industrial energy efficiency programme, and the DSM programmes in the buildings, lighting, and municipal sectors.

  19. Energy Efficiency in India: Challenges and Initiatives

    SciTech Connect

    Ajay Mathur

    2010-05-20

    May 13, 2010 EETD Distinguished Lecture: Ajay Mathur is Director General of the Bureau of Energy Efficiency, and a member of the Prime Minister's Council on Climate Change. As Director General of BEE, Dr. Mathur coordinates the national energy efficiency programme, including the standards and labeling programme for equipment and appliances; the energy conservation building code; the industrial energy efficiency programme, and the DSM programmes in the buildings, lighting, and municipal sectors.

  20. Diversifying the secondary school curriculum: The African experience

    NASA Astrophysics Data System (ADS)

    Sifuna, Daniel N.

    1992-01-01

    The paper discusses some African experiences in the diversification of secondary education, which is taken to mean curriculum change in a practical or vocational direction. This approach is intended to provide a wider set of future career options than is offered in the more uniform academic curriculum. The diversification policy has generally been seen as a solution to a number of economic and social problems facing the independent African countries, notably the increasing youth unemployment and the escalating costs of formal education. Studies which have so far been carried out have, however, revealed that diversification programmes have not met the intended objectives, although there is sustained interest in vocationalising formal education. Problems which commonly face these programmes include high unit costs, an absence of clarity in aims and objectives, a shortage of qualified teachers and the low status of vocational subjects as viewed by the students and the community. For future development, it is suggested that diversification programmes be reorganised to relate to more realistic goals through wider community participation and through the work-orientation of post-school training programmes.

  1. The quality of nursing service management in South African hospitals.

    PubMed

    Muller, M

    2000-06-01

    The purpose of this study is to determine--explore and describe--the quality of nursing service management in South African hospitals. A combined qualitative and quantitative pre- and post-test research strategy, in accordance with the COHSASA programme, was utilised. The hospitals implement the national standards during the preparatory phase, after having entered into an agreement with COHSASA. They determine their baseline status by means of an assisted self-evaluation. This is followed by an external survey phase where the hospital's compliance with the standards is evaluated. The nursing service is one of the professional services included in the accreditation programme. Their performance is compared with selected other professional services and their compliance with the core elements is also evaluated. The nursing services in South Africa are compliant with the national standards. The deficiencies are mainly within the quality improvement programmes that require further development and refinement.

  2. 'We are doing our best': African and African-Caribbean fatherhood, health and preventive primary care services, in England.

    PubMed

    Williams, Robert; Hewison, Alistair; Stewart, Mel; Liles, Clive; Wildman, Stuart

    2012-03-01

    Recent policy pronouncements emphasise the importance of engaging fathers with preventive primary care services. However, in England, there is a paucity of literature which examines African and African-Caribbean fathers' experiences of service provision. This paper reports a study that investigated African and African-Caribbean fathers' beliefs about fatherhood, health and preventive primary care services, with the aim of addressing the deficit in the literature. Nine focus groups involving 46 African and African-Caribbean fathers, recruited using purposive sampling, were undertaken between October 2008-January 2009. Fatherhood was seen as a core aspect of the participants' identities. The fathers enacted these identities in a number of ways, such as caring for and protecting children, which were influenced by spirituality, relationships with women, paid work and racism. The fathers had concerns about their bodies, medical conditions, physical activity and forms of consumption. However, their primary focus was on maintaining and improving the well-being of their children. This resulted in them neglecting their own health needs as they had to meet the obligations of family life and paid work. The fathers reported limited contact with preventive primary care services and were unaware of their purpose, function and availability. They identified ethnicity as a positive asset, and felt their families and communities had particular strengths. However they acknowledged that structural constraints, including racism, influenced their perceptions of and access to local health services. The engagement of African and African-Caribbean fathers needs to be addressed more specifically in policy as part of a broader programme of action to tackle health inequalities. In addition, child health services could build on fathers' commitment to children's well-being through practice that addresses fathers' as well as mothers' needs in families.

  3. The BGAN extension programme

    NASA Astrophysics Data System (ADS)

    Rivera, Juan J.; Trachtman, Eyal; Richharia, Madhavendra

    2005-11-01

    Mobile satellite telecommunications systems have undergone an enormous evolution in the last decades, with the interest in having advanced telecommunications services available on demand, anywhere and at any time, leading to incredible advances. The demand for braodband data is therefore rapidly gathering pace, but current solutions are finding it increasingly difficult to combine large bandwidth with ubiquitous coverage, reliability and portability. The BGAN (Broadband Global Area Network) system, designed to operate with the Inmarsat-4 satellites, provides breakthrough services that meet all of these requirements. It will enable broadband connection on the move, delivering all the key tools of the modern office. Recognising the great impact that Inmarsat's BGAN system will have on the European satellite communications industry, and the benefits that it will bring to a wide range of European industries, in 2003 ESA initiated the "BGAN Extension" project. Its primary goals are to provide the full range of BGAN services to truly mobile platforms, operating in aeronautical, vehicular and maritime environments, and to introduce a multicast service capability. The project is supported by the ARTES Programme which establishes a collaboration agreement between ESA, Inmarsat and a group of key industrial and academic institutions which includes EMS, Logica, Nera and the University of Surrey (UK).

  4. Scientific Programme Committee

    NASA Astrophysics Data System (ADS)

    2013-02-01

    Scientific Programme Committee A. Blondel, University of Geneva A. Cervera, IFIC M. Dracos, IN2P3 I. Efhymiopoulos, CERN J. Ellis, CERN S. Geer, FNAL R. Garoby, CERN M. Goodman, ANL D. Harris, FNAL T. Hasegawa, KEK P. Huber, Virginia Tech. D. Kaplan, IIT Y.D. Kim, Sejong University H. Kirk, BNL Y. Kuno, Osaka University K. Long, Imperial College N.K. Mondal, TIFR J. Morfin, FNAL Y. Mori, Kyoto University K. Nishikawa, KEK V. Palladino, University of Napoli C. Prior, RAL F.J.P. Soler, University of Glasgow J. Strait, FNAL R. Svoboda, University of California Davis F. Terranova, LN Frascati M. Zisman, LBNL Local Organizing Committee E. Benedetto, CERN/NTUA C. Blanchard, University of Geneva A. Blondel, University of Geneva (co-chair) I. Efthymiopoulos, CERN (co-chair) F. Dufour, University of Geneva F. Girard-Madoux, CERN E. Gschwendtner, CERN A. Korzenev, University of Geneva M. Morer-Olafsen, CERN S. Murphy, University of Geneva G. Prior, CERN G. Wikström, University of Geneva E. Wildner, CERN Sponsors EuCARD European Organization for Nuclear Research (CERN) Swiss Institute for Particle Physics (CHIPP) University of Geneva

  5. Shape-programmable macromolecules.

    PubMed

    Schafmeister, Christian E; Brown, Zachary Z; Gupta, Sharad

    2008-10-01

    Proteins catalyze specific chemical reactions and carry out highly selective molecular recognition because they adopt well-defined three-dimensional structures and position chemically reactive functional groups in specific constellations. Proteins attain these well-defined structures through the complex process of protein folding. We seek to emulate these protein functions by constructing macromolecules that are easier to engineer by avoiding folding altogether. Toward that goal, we have developed an approach for the synthesis of macromolecules with programmable shapes. As described in this Account, we have constructed synthetic building blocks called bis-amino acids that we then couple through pairs of amide bonds to create water-soluble, spiroladder oligomers (bis-peptides) with well-defined three-dimensional structures. Bis-peptides use the conformational preferences of fused rings, stereochemistry, and strong covalent bonds to define their shape, unlike natural proteins and synthetic foldamers, which depend on noncovalent interactions and an unpredictable folding process to attain structure. Using these bis-amino acid monomers, we have built and characterized a number of bis-peptide nanostructures. We also constructed a molecular actuator that undergoes a large change in conformation under the control of metal exchange; the first application of bis-peptides. We are currently developing further approaches to functionalize bis-peptides as scaffolds to present well-defined constellations of functional groups. Such macromolecules could facilitate multifunctional catalysis and molecular recognition and lead to nanoscale molecular devices.

  6. Programmable electronic synthesized capacitance

    NASA Technical Reports Server (NTRS)

    Kleinberg, Leonard L. (Inventor)

    1987-01-01

    A predetermined and variable synthesized capacitance which may be incorporated into the resonant portion of an electronic oscillator for the purpose of tuning the oscillator comprises a programmable operational amplifier circuit. The operational amplifier circuit has its output connected to its inverting input, in a follower configuration, by a network which is low impedance at the operational frequency of the circuit. The output of the operational amplifier is also connected to the noninverting input by a capacitor. The noninverting input appears as a synthesized capacitance which may be varied with a variation in gain-bandwidth product of the operational amplifier circuit. The gain-bandwidth product may, in turn, be varied with a variation in input set current with a digital to analog converter whose output is varied with a command word. The output impedance of the circuit may also be varied by the output set current. This circuit may provide very small ranges in oscillator frequency with relatively large control voltages unaffected by noise.

  7. African American Suicide

    MedlinePlus

    ... accounted for 83.8% of Caucasian elderly suicides. • Firearms were the predominant method of suicide among African ... per 100,000 annually. Source: Centers for Disease Control and Prevention. National Vital Statistics System. Mortality Data. ...

  8. Obesity and African Americans

    MedlinePlus

    ... and Management System Report to Congress Knowledge Center Capacity Building Information Services Events Calendar Resource Guide Justice ... Workforce Diversity Grants Youth Program Grants Other Grants Planning and Evaluation Grantee Best Practices Black/African American ...

  9. African swine fever: an epidemiological update.

    PubMed

    Sánchez-Vizcaíno, J M; Mur, L; Martínez-López, B

    2012-03-01

    African swine fever (ASF) is one of the most important swine diseases, mainly because of its significant sanitary and socioeconomic consequences. This review gives an update on the epidemiology of the disease and reviews key issues and strategies to improve control of the disease and promote its eradication. Several characteristics of ASF virus (ASFV) make its control and eradication difficult, including the absence of available vaccines, marked virus resistance in infected material and contaminated animal products, and a complex epidemiology and transmission involving tick reservoir virus interactions. The incidence of ASF has not only increased on the African continent over the last 15 years, so that it now affects West African countries, Mauritius and Madagascar, but it has also reached new areas, such as the Caucasus region in 2007. In fact, the rapid spread of the disease on the European continent and the uncontrolled situation in the Russian Federation places all countries at great risk as a result of intense global trade. The proximity of some affected areas to the European Union (EU) borders (<150 km) has increased concerns about the potential economic consequences of an ASF incursion into the EU pig sector. Establishing effective surveillance, control and eradication programmes that implicate all actors (veterinarians, farmers, and policy makers) is essential for controlling ASF. African swine fever -free countries should be aware of the potential risk of ASF incursion and implement risk reduction measures such as trade controls and other sanitary measures. This review will discuss lessons learnt so far about ASF control, current challenges to its control and future studies needed to support global efforts at prevention and control.

  10. Building capacity for sustainable research programmes for cancer in Africa.

    PubMed

    Adewole, Isaac; Martin, Damali N; Williams, Makeda J; Adebamowo, Clement; Bhatia, Kishor; Berling, Christine; Casper, Corey; Elshamy, Karima; Elzawawy, Ahmed; Lawlor, Rita T; Legood, Rosa; Mbulaiteye, Sam M; Odedina, Folakemi T; Olopade, Olufunmilayo I; Olopade, Christopher O; Parkin, Donald M; Rebbeck, Timothy R; Ross, Hana; Santini, Luiz A; Torode, Julie; Trimble, Edward L; Wild, Christopher P; Young, Annie M; Kerr, David J

    2014-05-01

    Cancer research in Africa will have a pivotal role in cancer control planning in this continent. However, environments (such as those in academic or clinical settings) with limited research infrastructure (laboratories, biorespositories, databases) coupled with inadequate funding and other resources have hampered African scientists from carrying out rigorous research. In September 2012, over 100 scientists with expertise in cancer research in Africa met in London to discuss the challenges in performing high-quality research, and to formulate the next steps for building sustainable, comprehensive and multi-disciplinary programmes relevant to Africa. This was the first meeting among five major organizations: the African Organisation for Research and Training in Africa (AORTIC), the Africa Oxford Cancer Foundation (AfrOx), and the National Cancer Institutes (NCI) of Brazil, France and the USA. This article summarizes the discussions and recommendations of this meeting, including the next steps required to create sustainable and impactful research programmes that will enable evidenced-based cancer control approaches and planning at the local, regional and national levels.

  11. Automatic TLI recognition system, programmer`s guide

    SciTech Connect

    Lassahn, G.D.

    1997-02-01

    This report describes the software of an automatic target recognition system (version 14), from a programmer`s point of view. The intent is to provide information that will help people who wish to modify the software. In separate volumes are a general description of the ATR system, Automatic TLI Recognition System, General Description, and a user`s manual, Automatic TLI Recognition System, User`s Guide. 2 refs.

  12. An Account of Student Mentors' "Modes of Reflexivity" during an E-Mentoring Programme at a University

    ERIC Educational Resources Information Center

    Norodien-Fataar, N.

    2012-01-01

    This article focuses on the reflexive deliberations of student mentors during an e-mentoring programme at a South African university. Based on semi-structured interviews and focus group discussions with student mentors, located in a number of different student residences, this article examines how they engage with their learning and use…

  13. "Abazali Abazamayo" (Parents Who Keep on Trying): Mothers' Responses to the Ububele Mother-Baby Home Visiting Programme

    ERIC Educational Resources Information Center

    Bain, Katherine; Dawson, Nicola; Esterhuizen, Melanie; Frost, Katharine; Pininski, Darren

    2017-01-01

    Early parent-infant home visiting interventions have been found to be effective in both developed and developing countries. However, there is a need to build an evidence base for these interventions in the South African context, to inform local early childhood development policy. The Ububele Mother-Baby Home Visiting Programme in Alexandra,…

  14. Snapshots of Student-Teachers' Experiences of DVDs in a Learner Support Programme in a Developing ODL Context

    ERIC Educational Resources Information Center

    Kok, Illasha; Blignaut, A. Seugnet

    2014-01-01

    The School of Continuing Teacher Education (SCTE) in South Africa delivers an Advanced Certificate in Education (ACE) Learner Support Programme to Open Distance Learning (ODL) students in Namibia, a developing sub-Saharan African country. This paper examines the experiences of student-teachers using DVDs included in the tutorial package. Fifteen…

  15. De-Colonising International Collaboration: The University of Kwazulu-Natal-Mauritius Institute of Education Cohort PhD Programme

    ERIC Educational Resources Information Center

    Samuel, Michael Anthony; Mariaye, Hyleen

    2014-01-01

    This paper explores the setting up of the partnership across the Mauritian and South African higher education contexts with respect to the development of a postgraduate PhD doctoral studies programme. The Mauritian Institute of Education (MIE) aims to develop staffing capacities through engagement with doctoral studies, especially in the context…

  16. Examples of tropical disease control in the humanitarian medical programmes of MSF and Merlin.

    PubMed

    Balasegaram, Manica; Dejene, Seyoum; Tinnemann, Peter; Perkins, Samantha; Davidson, Robert

    2006-04-01

    Humanitarian medical programmes in the tropics have the opportunity to provide beacons of good practice. The use of modern drugs and diagnostics, a lack of bureaucracy, adequate budgets, motivated staff and well-functioning supply lines all contribute to the success of this approach. At a joint meeting of the Royal Society of Tropical Medicine, the London School of Hygiene and Tropical Medicine, Médecins Sans Frontières and Merlin, new data were presented on the outcomes of recent humanitarian programmes to control malaria (Ethiopia), human African trypanosomiasis (south Sudan), Lassa fever (Sierra Leone) and tuberculosis (Tomsk, former USSR).

  17. "Disappearance" and Feminist Research in the South African Academy of Humanities

    ERIC Educational Resources Information Center

    Bennett, Jane

    2016-01-01

    Following a global trend in humanities since the mid-1970s, South African humanities faculties began to include formal programmes in gender and sexualities studies from the mid-1990s on. While the immediate post-flag democratic era encouraged intellectual concentration on diverse questions of power and knowledge, the new century saw a decline in…

  18. Seeing History: Malaika Favorite's "Furious Flower Poetry Quilt" Painting and Pan-African Memory

    ERIC Educational Resources Information Center

    Shanahan, Maureen G.

    2010-01-01

    Malaika Favorite's "Furious Flower Poetry Quilt" (2004) is an acrylic painting that depicts 24 portraits of leading poets of the African Diaspora. Commissioned by Dr Joanne Gabbin, English professor and director of the Furious Flower Poetry Center at James Madison University, the painting is part of a larger programme of poetry…

  19. Toddler Feeding: Expectations and Experiences of Low-Income African American Mothers

    ERIC Educational Resources Information Center

    Horodynski, Mildred A.; Brophy-Herb, Holly; Henry, Michelle; Smith, Katharine A.; Weatherspoon, Lorraine

    2009-01-01

    Objective: To ascertain maternal expectations and experiences with mealtimes and feeding of toddlers among low-income African American mothers in two mid- to large-size cities in the United States. Design: Qualitative focus group study. Setting: Two Early Head Start programme sites in a Midwestern state which serve low income families. Method:…

  20. Electrically-programmable diffraction grating

    DOEpatents

    Ricco, A.J.; Butler, M.A.; Sinclair, M.B.; Senturia, S.D.

    1998-05-26

    An electrically-programmable diffraction grating is disclosed. The programmable grating includes a substrate having a plurality of electrodes formed thereon and a moveable grating element above each of the electrodes. The grating elements are electrostatically programmable to form a diffraction grating for diffracting an incident beam of light as it is reflected from the upper surfaces of the grating elements. The programmable diffraction grating, formed by a micromachining process, has applications for optical information processing (e.g. optical correlators and computers), for multiplexing and demultiplexing a plurality of light beams of different wavelengths (e.g. for optical fiber communications), and for forming spectrometers (e.g. correlation and scanning spectrometers). 14 figs.

  1. STALK programmers guide

    SciTech Connect

    Levine, D.; Hallstrom, P.; Reeder, G.; Walenz, B.; Stevens, F.; Facello, M.

    1996-07-01

    STALK is a system that models molecular docking between two proteins. A problem is posed as an optimization problem where the objective is to minimize the intermolecular interaction energy between the two molecules. The possible number of conformations between the two molecules can be very large. A parallel genetic algorithm (GA) is used to explore the conformation space and identify the low-energy molecular configurations. The CAVE, a virtual reality environment, can be used to visualize and interact with the system while it is executing. STALK consists of two programs: stalk.ga, the docking program that runs the GA, and stalk. cave, the visualization program. The visualization component is optional.

  2. Coccidioidomycosis in African Americans

    PubMed Central

    Ruddy, Barbara E.; Mayer, Anita P.; Ko, Marcia G.; Labonte, Helene R.; Borovansky, Jill A.; Boroff, Erika S.; Blair, Janis E.

    2011-01-01

    Coccidioidomycosis is caused by Coccidioides species, a fungus endemic to the desert regions of the southwestern United States, and is of particular concern for African Americans. We performed a PubMed search of the English-language medical literature on coccidioidomycosis in African Americans and summarized the pertinent literature. Search terms were coccidioidomycosis, Coccidioides, race, ethnicity, African, black, and Negro. The proceedings of the national and international coccidioidomycosis symposia were searched. All relevant articles and their cited references were reviewed; those with epidemiological, immunologic, clinical, and therapeutic data pertaining to coccidioidomycosis in African Americans were included in the review. Numerous studies documented an increased predilection for severe coccidioidal infections, coccidioidomycosis-related hospitalizations, and extrapulmonary dissemination in persons of African descent; however, most of the published studies are variably problematic. The immunologic mechanism for this predilection is unclear. The clinical features and treatment recommendations are summarized. Medical practitioners need to be alert to the possibility of coccidioidomycosis in persons with recent travel to or residence in an area where the disease is endemic. PMID:21193657

  3. The programmer`s guide to the software copyright

    SciTech Connect

    Wehrli, J.E.

    1996-06-01

    This booklet was written specifically for anyone who writes computer programs at the Lawrence Berkeley National Laboratory. It is intended to provide basic information on how the law of copyright applies to computer software. It is not intended to be a legal reference for copyright attorneys, but an accessible reference for the people whose creative efforts result in software others want to use. Whether you are a chemist who writes software to help you with your work or a professional Berkeley Lab programmer you should benefit from this booklet. The information in this booklet is written in an informal conversational style, not a legal style. It is simply a direct response to a need for information that I have observed. Since I have written it from a programmer`s viewpoint and for a programmer`s use, it does not cover copyright law in general and focuses only on those areas of copyright law specific to computer software. Moreover, it does not attempt to address other areas of law that may be applicable to computer software. It is certainly not intended to replace the timely legal advice of Berkeley Lab`s Patent Department. However, just as it is helpful to read the computer manual before calling tech support, it will also be helpful to read this booklet before calling the Patent Department, not so much to answer any and all questions, but to give you the vocabulary to better understand and digest the information provided by the Department.

  4. Mental Health and African Americans

    MedlinePlus

    ... Minority Population Profiles > Black/African American > Mental Health Mental Health and African Americans Poverty level affects mental health ... compared to 120% of non-Hispanic whites. 1 MENTAL HEALTH STATUS Serious psychological distress among adults 18 years ...

  5. The Environment Programme for the Whole of the United Nations 1990-95: 13 Broad Programmes, Emphasizing Research, Assessment, Technical Assistance and Training.

    ERIC Educational Resources Information Center

    UNEP News, 1988

    1988-01-01

    Lists titles of 31 environmental programs over 13 broad categories including terrestrial ecosystems, oceans, health and welfare, and energy, industry and transportation. Describes the general objectives, implementing agencies, and the role of UNEP (United Nations Environment Programme). (YP)

  6. Developing generalism in the South African context.

    PubMed

    Howe, Amanda C; Mash, Robert J; Hugo, Jannie F M

    2013-10-11

    The largest impact on the South African burden of disease will be made in community-based and primary healthcare (PHC) settings and not in referral hospitals. Medical generalism is an approach to the delivery of healthcare that routinely applies a broad and holistic perspective to the patient's problems and is a feature of PHC. A multi-professional team of generalists, who share similar values and principles, is needed to make this a reality. Ward-based outreach teams include community health workers and nurses with essential support from doctors. Expert generalists - family physicians - are required to support PHC as well as provide care at the district hospital. All require sufficient training, at scale, with greater collaboration and integration between training programmes. District clinical specialist teams are both an opportunity and a threat. The value of medical generalism needs to be explained, advocated and communicated more actively. 

  7. The Struggles over African Languages

    ERIC Educational Resources Information Center

    Maseko, Pam; Vale, Peter

    2016-01-01

    In this interview, African Language expert Pam Maseko speaks of her own background and her first encounter with culture outside of her mother tongue, isiXhosa. A statistical breakdown of South African languages is provided as background. She discusses Western (originally missionary) codification of African languages and suggests that this approach…

  8. Energy

    DTIC Science & Technology

    2003-01-01

    Canada, Britain, and Spain. We found that the energy industry is not in crisis ; however, U.S. government policies, laws, dollars, and even public...CEIMAT (Centro de Investagaciones Energeticas , Medioambeintales y Tecnologicas) Research and development Page 3 of 28ENERGY 8/10/04http://www.ndu.edu...procurement or storage of standard, common use fuels. NATURAL GAS Natural gas, abundant globally and domestically, offers energy versatility among

  9. Narcolepsy in African Americans

    PubMed Central

    Kawai, Makoto; O'Hara, Ruth; Einen, Mali; Lin, Ling; Mignot, Emmanuel

    2015-01-01

    Study Objectives: Although narcolepsy affects 0.02–0.05% of individuals in various ethnic groups, clinical presentation in different ethnicities has never been fully characterized. Our goal was to study phenotypic expression across ethnicities in the United States. Design/Setting: Cases of narcolepsy from 1992 to 2013 were identified from searches of the Stanford Center for Narcolepsy Research database. International Classification of Sleep Disorders, Third Edition diagnosis criteria for type 1 and type 2 narcolepsy were used for inclusion, but subjects were separated as with and without cataplexy for the purpose of data presentation. Information extracted included demographics, ethnicity and clinical data, HLA-DQB1*06:02, polysomnography (PSG), multiple sleep latency test (MSLT) data, and cerebrospinal fluid (CSF) hypocretin-1 level. Patients: 182 African-Americans, 839 Caucasians, 35 Asians, and 41 Latinos with narcolepsy. Results: Sex ratio, PSG, and MSLT findings did not differ across ethnicities. Epworth Sleepiness Scale (ESS) score was higher and age of onset of sleepiness earlier in African Americans compared with other ethnicities. HLA-DQB1*06:02 positivity was higher in African Americans (91.0%) versus others (76.6% in Caucasians, 80.0% in Asians, and 65.0% in Latinos). CSF hypocretin-1 level, obtained in 222 patients, was more frequently low (≤ 110 pg/ml) in African Americans (93.9%) versus Caucasians (61.5%), Asians (85.7%) and Latinos (75.0%). In subjects with low CSF hypocretin-1, African Americans (28.3%) were 4.5 fold more likely to be without cataplexy when compared with Caucasians (8.1%). Conclusions: Narcolepsy in African Americans is characterized by earlier symptom onset, higher Epworth Sleepiness Scale score, higher HLA-DQB1*06:02 positivity, and low cerebrospinal fluid hypocretin-1 level in the absence of cataplexy. In African Americans, more subjects without cataplexy have type 1 narcolepsy. Citation: Kawai M, O'Hara R, Einen M, Lin L

  10. The genetic structure and history of Africans and African Americans.

    PubMed

    Tishkoff, Sarah A; Reed, Floyd A; Friedlaender, Françoise R; Ehret, Christopher; Ranciaro, Alessia; Froment, Alain; Hirbo, Jibril B; Awomoyi, Agnes A; Bodo, Jean-Marie; Doumbo, Ogobara; Ibrahim, Muntaser; Juma, Abdalla T; Kotze, Maritha J; Lema, Godfrey; Moore, Jason H; Mortensen, Holly; Nyambo, Thomas B; Omar, Sabah A; Powell, Kweli; Pretorius, Gideon S; Smith, Michael W; Thera, Mahamadou A; Wambebe, Charles; Weber, James L; Williams, Scott M

    2009-05-22

    Africa is the source of all modern humans, but characterization of genetic variation and of relationships among populations across the continent has been enigmatic. We studied 121 African populations, four African American populations, and 60 non-African populations for patterns of variation at 1327 nuclear microsatellite and insertion/deletion markers. We identified 14 ancestral population clusters in Africa that correlate with self-described ethnicity and shared cultural and/or linguistic properties. We observed high levels of mixed ancestry in most populations, reflecting historical migration events across the continent. Our data also provide evidence for shared ancestry among geographically diverse hunter-gatherer populations (Khoesan speakers and Pygmies). The ancestry of African Americans is predominantly from Niger-Kordofanian (approximately 71%), European (approximately 13%), and other African (approximately 8%) populations, although admixture levels varied considerably among individuals. This study helps tease apart the complex evolutionary history of Africans and African Americans, aiding both anthropological and genetic epidemiologic studies.

  11. Radon programmes and health marketing.

    PubMed

    Fojtikova, Ivana; Rovenska, Katerina

    2011-05-01

    Being aware of negative health effects of radon exposure, many countries aim for the reduction of the radon exposure of their population. The Czech radon programme was commenced >20 y ago. Since then experts have gathered a lot of knowledge, necessary legislation has been enacted, tens of thousands of inhabitants have been offered free measurement and subsidy for the mitigation. Despite the effort, the effectiveness of the radon programme seems to be poor. Newly built houses still exhibit elevated radon concentrations and the number of houses mitigated is very low. Is it possible to enhance the effectivity of radon programme while keeping it on a voluntary basis? One possible way is to employ health marketing that draws together traditional marketing theories and science-based strategies to prevention. The potential of using marketing principles in communication and delivery of radon information will be discussed.

  12. Programmable data communications controller requirements

    NASA Technical Reports Server (NTRS)

    1977-01-01

    The design requirements for a Programmable Data Communications Controller (PDCC) that reduces the difficulties in attaching data terminal equipment to a computer are presented. The PDCC is an interface between the computer I/O channel and the bit serial communication lines. Each communication line is supported by a communication port that handles all line control functions and performs most terminal control functions. The port is fabricated on a printed circuit board that plugs into a card chassis, mating with a connector that is joined to all other card stations by a data bus. Ports are individually programmable; each includes a microprocessor, a programmable read-only memory for instruction storage, and a random access memory for data storage.

  13. Computational multiqubit tunnelling in programmable quantum annealers

    PubMed Central

    Boixo, Sergio; Smelyanskiy, Vadim N.; Shabani, Alireza; Isakov, Sergei V.; Dykman, Mark; Denchev, Vasil S.; Amin, Mohammad H.; Smirnov, Anatoly Yu; Mohseni, Masoud; Neven, Hartmut

    2016-01-01

    Quantum tunnelling is a phenomenon in which a quantum state traverses energy barriers higher than the energy of the state itself. Quantum tunnelling has been hypothesized as an advantageous physical resource for optimization in quantum annealing. However, computational multiqubit tunnelling has not yet been observed, and a theory of co-tunnelling under high- and low-frequency noises is lacking. Here we show that 8-qubit tunnelling plays a computational role in a currently available programmable quantum annealer. We devise a probe for tunnelling, a computational primitive where classical paths are trapped in a false minimum. In support of the design of quantum annealers we develop a nonperturbative theory of open quantum dynamics under realistic noise characteristics. This theory accurately predicts the rate of many-body dissipative quantum tunnelling subject to the polaron effect. Furthermore, we experimentally demonstrate that quantum tunnelling outperforms thermal hopping along classical paths for problems with up to 200 qubits containing the computational primitive. PMID:26739797

  14. Using Cooperative Efforts between the African American Church and Local Public Libraries To Expand the Use of Library Services by African Americans. Final Report.

    ERIC Educational Resources Information Center

    Rodgers, Frederick A.; Innes, Elizabeth A.

    The African American church has a long history of service to its community. The church in African American life has always served as a source of support, learning, information, and improvement for its members and the community it serves. This project directed its resources and energies toward developing meaningful and effective strategies for…

  15. African Astronomy and the Square Kilometre Array

    NASA Astrophysics Data System (ADS)

    MacLeod, Gordon

    2010-02-01

    We highlight the growth of astronomy across Africa and the effect of hosting the Square Kilometer Array (SKA) will have on this growth. From the construction of a new 25m radio telescope in Nigeria, to new university astronomy programmes in Kenya, the HESS in Namibia and the Mauritian Radio Telescope, to the world class projects being developed in South Africa (Southern African Large Telescope and Karoo Array Telescope) astronomy is re-emerging across the continent. The SKA will represent the pinnacle of technological advancement in astronomy when constructed; requiring ultra high speed data transmission lines over 3000 km baselines and the World's fastest computer for correlation purposes. The investment alone to build the SKA on African soil will be of great economic benefit to its people, but the required network connectivity will significantly drive commercial expansion far beyond the initial value of the SKA investment. The most important consequence of hosting the SKA in Africa would be the impact on Human Capital Development (HCD) on the continent. Major HCD projects already underway producing excellent results will be presented. )

  16. Multiple channel programmable coincidence counter

    DOEpatents

    Arnone, Gaetano J.

    1990-01-01

    A programmable digital coincidence counter having multiple channels and featuring minimal dead time. Neutron detectors supply electrical pulses to a synchronizing circuit which in turn inputs derandomized pulses to an adding circuit. A random access memory circuit connected as a programmable length shift register receives and shifts the sum of the pulses, and outputs to a serializer. A counter is input by the adding circuit and downcounted by the seralizer, one pulse at a time. The decoded contents of the counter after each decrement is output to scalers.

  17. Klein's programme and quantum mechanics

    NASA Astrophysics Data System (ADS)

    Clemente-Gallardo, Jesús; Marmo, Giuseppe

    2015-04-01

    We review the geometrical formulation of quantum mechanics to identify, according to Klein's programme, the corresponding group of transformations. For closed systems, it is the unitary group. For open quantum systems, the semigroup of Kraus maps contains, as a maximal subgroup, the general linear group. The same group emerges as the exponentiation of the C*-algebra associated with the quantum system, when thought of as a Lie algebra. Thus, open quantum systems seem to identify the general linear group as associated with quantum mechanics and moreover suggest to extend the Klein programme also to groupoids. The usual unitary group emerges as a maximal compact subgroup of the general linear group.

  18. The U.S. Diversity Visa Programme and the Transfer of Skills from Africa

    PubMed Central

    Logan, B. Ikubolajeh; Thomas, Kevin J. A.

    2014-01-01

    The Diversity Visa (DV) programme is designed to improve the multicultural composition of the U.S. “melting pot” beyond the traditional source countries in Europe. In pursuit of this objective, the basic eligibility requirement for participation in the programme is a high school diploma. Despite its salutary objective and design, the programme’s implications for the African brain drain may not all be benign. The “tired, poor, huddled masses” from Africa are defined in more restrictive terms, and the obstacles they face are more economically and administratively onerous than those encountered by their early European counterparts. The costs of transforming a lottery win to an actual diversity visa and Green Card are so high that only Africans in well-paying jobs, who are likely to be professionals rather than mere high school graduates, are likely to be able to afford the full costs of programme participation. In this sense, the programme has an in-built, skills-selective mechanism. The main objective of this study is to examine the extent to which the DV has facilitated the movement of professional, technical and kindred workers (PTKs) from Africa to the United States, and some of the economic and policy implications of the process. PMID:24899733

  19. Past and Ongoing Tsetse and Animal Trypanosomiasis Control Operations in Five African Countries: A Systematic Review

    PubMed Central

    Holt, Hannah R.; Selby, Richard; Guitian, Javier

    2016-01-01

    Background Control operations targeting Animal African Trypanosomiasis and its primary vector, the tsetse, were covering approximately 128,000 km2 of Africa in 2001, which is a mere 1.3% of the tsetse infested area. Although extensive trypanosomiasis and tsetse (T&T) control operations have been running since the beginning of the 20th century, Animal African Trypanosomiasis is still a major constraint of livestock production in sub-Saharan Africa. Methodology/Principal Findings We performed a systematic review of the existing literature describing T&T control programmes conducted in a selection of five African countries, namely Burkina Faso, Cameroon, Ethiopia, Uganda and Zambia, between 1980 and 2015. Sixty-eight documents were eventually selected from those identified by the database search. This was supplemented with information gathered through semi-structured interviews conducted with twelve key informants recruited in the study countries and selected based on their experience and knowledge of T&T control. The combined information from these two sources was used to describe the inputs, processes and outcomes from 23 major T&T control programmes implemented in the study countries. Although there were some data gaps, involvement of the target communities and sustainability of the control activities were identified as the two main issues faced by these programmes. Further, there was a lack of evaluation of these control programmes, as well as a lack of a standardised methodology to conduct such evaluations. Conclusions/Significance Past experiences demonstrated that coordinated and sustained control activities require careful planning, and evidence of successes, failures and setbacks from past control programmes represent a mine of information. As there is a lack of evaluation of these programmes, these data have not been fully exploited for the design, analyses and justification of future control programmes. PMID:28027299

  20. Global Geospace Science Programme

    NASA Technical Reports Server (NTRS)

    Parks, George; Shawhan, Stanley; Calabrese, Michael; Alexander, Joseph

    1988-01-01

    The Global Geospace Science (GGS) Program, an element of the international Solar Terrestrial Physics Program dedicated to the study of the global plasma dynamics of the solar-terrestrial environment, is discussed. Past research on the injection of solar wind ions into the magnetosphere and on the detection of ions in the terrestrial ring current of both solar wind and ionospheric origins is reviewed, showing its relevance for the GGS program. Research on the interplanetary magnetic field, the auroral electrojet, the outer magnetosphere, the geomagnetic tail, the ionospheric electric field and the related electron precipitation is also addressed. The results demonstrate that the solar wind and the ionsophere both contribute to the magnetospheric particle population. Unanswered questions regarding hot plasma sources, transport processes, energy storage in the magnetic field, and energization of plasmas are discussed. The relevant mission strategy, instrumentation, theory and modeling, and data collection are addressed.

  1. Elective: African Literature.

    ERIC Educational Resources Information Center

    Jenkins, Kenneth V.

    The make-up of a course in African literature for high school students is discussed. It is pointed out that the course can be constructed on already familiar lines. High school students will be able to describe clearly, for example, the relationship between environment and character or the dilemma of characters caught between traditional values…

  2. African Americans and Agriculture.

    ERIC Educational Resources Information Center

    Morgan, Joan

    2000-01-01

    Reviews the opportunities available in the field of agriculture for African American students and notes efforts of the 136 colleges of agriculture to publicize their offerings and recruit students. Profiles six black leaders in agriculture, highlighting their achievements in research and aid to developing countries. A table provides data on annual…

  3. African Literature: Selected Resources.

    ERIC Educational Resources Information Center

    Deschenes, Martin O.; Waters, Harold A.

    This bibliography of resources for the teaching of African literature includes over 100 citations of books, textbooks, anthologies, plays, novels, short stories, and periodicals in French and English. Publishing house addresses, audiovisual aids, professional organizations, and a course list are also cited. The books are listed under the following…

  4. Beyond the biomedical and behavioural: towards an integrated approach to HIV prevention in the southern African mining industry.

    PubMed

    Campbell, C; Williams, B

    1999-06-01

    While migrant labour is believed to play an important role in the dynamics of HIV-transmission in many of the countries of southern Africa, little has been written about the way in which HIV/AIDS has been dealt with in the industrial settings in which many migrant workers are employed. This paper takes the gold mining industry in the countries of the Southern African Development Community (SADC) as a case study. While many mines made substantial efforts to establish HIV-prevention programmes relatively early on in the epidemic, these appear to have had little impact. The paper analyses the response of key players in the mining industry, in the interests of highlighting the limitations of the way in which both managements and trade unions have responded to HIV. It will be argued that the energy that has been devoted either to biomedical or behavioural prevention programmes or to human rights issues has served to obscure the social and developmental dimensions of HIV-transmission. This argument is supported by means of a case study which seeks to highlight the complexity of the dynamics of disease transmission in this context, a complexity which is not reflected in individualistic responses. An account is given of a new intervention which seeks to develop a more integrated approach to HIV management in an industrial setting.

  5. Space science education in the african continent

    NASA Astrophysics Data System (ADS)

    Aseno, J. O.

    Through measurement and interpretation of the spectral, spatial and temporal variations in electromagnetic emissions and reflections from the Earth's surface, important information related to natural resources can be acquired. Furthermore, satellite technology has greatly improved the communication and positioning techniques world-wide. Consequently, space science now provides valuable and timely information about natural resources, which has become a major factor in sustainable development. The realization of the full potential of space science in the context of development in Africa requires adequate education and training in order to facilitate project formulation, planning, management and implementation. This, in turn, would lead to the formulation and adoption of national space science policies based on user needs and addressing both the short and long-term needs of a particular country. Space science education in Africa needs to address issues like (i) provision of programme, (ii) integration of the proposed techniques within the existing infrastructure, and (iii) training in Remote Sensing, Global Positioning System, Geographic Information System and other space science techniques, in order to ensure the successful implementation of space science projects within the continent. In this context, African universities ought to play a major role in space science training, research, consultancy and publication. Through international co-operation, it is possible to develop and support national, regional and international training programmes and international scientific exchange in Africa.

  6. French space programmes related to global change

    NASA Astrophysics Data System (ADS)

    Fellous, J. L.; Ratier, A.

    The guidelines of the national and cooperative environmental programmes conducted by CNES are complementarity with third agencies' programmes, synergism between scientific and application projects, and promotion of innovative concepts likely to meet the requirements of the World Climate Research and International Geosphere-Biosphere Programmes. While the on-going SPOT series is to provide imagery of land surfaces until 2000, the TOPEX/POSEIDON altimetric mission is being developed by NASA and CNES for launch in mid-1992 in phase with the WOCE intensive field experiments. The design study of the AVISO ocean data system, and the development on behalf of ESA of the ERS-1-dedicated CERSAT facility are consolidating the French effort in space oceanography. Two other research space missions are studied by CNES and French laboratories. BEST, whose phase A study is nearing completion, is a low-altitude, low-inclination, GEWEX-dedicated mission for the investigation of the water and energy cycle in the tropics, with a target launch date in the late 1990's. The phase A study of GLOBSAT, a more IGBP-oriented mission concept, has just been initiated. The first objective of this mission in polar orbit considered for launch around 1997, is to collect comprehensive data sets needed to document key processes related to cloud/radiation interaction, stratospheric/tropospheric chemistry and dynamics of continental and marine ecosystems. The second objective is to start monitoring long-term trends of parameters required to close global budgets of carbon and ozone. The analysis of this space mission concept is conducted in parallel with the development of instruments of opportunity to be flown onboard foreign satellites, and of airborne sensors, either precursor to space instruments or designed for process studies and validation of space data.

  7. Electrochemically Programmable Plasmonic Antennas.

    PubMed

    Dong, Shi; Zhang, Kai; Yu, Zhiping; Fan, Jonathan A

    2016-07-26

    Plasmonic antennas are building blocks in advanced nano-optical systems due to their ability to tailor optical response based on their geometry. We propose an electrochemical approach to program the optical properties of dipole antennas in a scalable, fast, and energy-efficient manner. These antennas comprise two arms, one serving as an anode and the other a cathode, separated by a solid electrolyte. As a voltage is applied between the antenna arms, a conductive filament either grows or dissolves within the electrolyte, modifying the antenna load. We probe the dynamics of stochastic filament formation and their effects on plasmonic mode programming using a combination of three-dimensional optical and electronic simulations. In particular, we identify device operation regimes in which the charge-transfer plasmon mode can be programmed to be "on" or "off." We also identify, unexpectedly, a strong correlation between DC filament resistance and charge-transfer plasmon mode frequency that is insensitive to the detailed filament morphology. We envision that the scalability of our electrochemical platform can generalize to large-area reconfigurable metamaterials and metasurfaces for on-chip and free-space applications.

  8. Programmable artificial phototactic microswimmer.

    PubMed

    Dai, Baohu; Wang, Jizhuang; Xiong, Ze; Zhan, Xiaojun; Dai, Wei; Li, Chien-Cheng; Feng, Shien-Ping; Tang, Jinyao

    2016-12-01

    Phototaxis is commonly observed in motile photosynthetic microorganisms. For example, green algae are capable of swimming towards a light source (positive phototaxis) to receive more energy for photosynthesis, or away from a light source (negative phototaxis) to avoid radiation damage or to hide from predators. Recently, with the aim of applying nanoscale machinery to biomedical applications, various inorganic nanomotors based on different propulsion mechanisms have been demonstrated. The only method to control the direction of motion of these self-propelled micro/nanomotors is to incorporate a ferromagnetic material into their structure and use an external magnetic field for steering. Here, we show an artificial microswimmer that can sense and orient to the illumination direction of an external light source. Our microswimmer is a Janus nanotree containing a nanostructured photocathode and photoanode at opposite ends that release cations and anions, respectively, propelling the microswimmer by self-electrophoresis. Using chemical modifications, we can control the zeta potential of the photoanode and program the microswimmer to exhibit either positive or negative phototaxis. Finally, we show that a school of microswimmers mimics the collective phototactic behaviour of green algae in solution.

  9. Programmable artificial phototactic microswimmer

    NASA Astrophysics Data System (ADS)

    Dai, Baohu; Wang, Jizhuang; Xiong, Ze; Zhan, Xiaojun; Dai, Wei; Li, Chien-Cheng; Feng, Shien-Ping; Tang, Jinyao

    2016-12-01

    Phototaxis is commonly observed in motile photosynthetic microorganisms. For example, green algae are capable of swimming towards a light source (positive phototaxis) to receive more energy for photosynthesis, or away from a light source (negative phototaxis) to avoid radiation damage or to hide from predators. Recently, with the aim of applying nanoscale machinery to biomedical applications, various inorganic nanomotors based on different propulsion mechanisms have been demonstrated. The only method to control the direction of motion of these self-propelled micro/nanomotors is to incorporate a ferromagnetic material into their structure and use an external magnetic field for steering. Here, we show an artificial microswimmer that can sense and orient to the illumination direction of an external light source. Our microswimmer is a Janus nanotree containing a nanostructured photocathode and photoanode at opposite ends that release cations and anions, respectively, propelling the microswimmer by self-electrophoresis. Using chemical modifications, we can control the zeta potential of the photoanode and program the microswimmer to exhibit either positive or negative phototaxis. Finally, we show that a school of microswimmers mimics the collective phototactic behaviour of green algae in solution.

  10. The Massey Kiwi Friend Programme

    ERIC Educational Resources Information Center

    Ramsey, Philip; Ramsey, Deborah; Mason, Robyn

    2007-01-01

    Like many institutions, Massey University has experienced growth in enrolments of international students. Increasing numbers of international students has led to frustrations for international and domestic students, and for staff. This paper describes an innovative programme designed to help with the orientation of international students. Domestic…

  11. Portugal's Secondary School Modernisation Programme

    ERIC Educational Resources Information Center

    Heitor, Teresa V.; Freire da Silva, Jose M. R.

    2009-01-01

    The aim of the Secondary School Modernisation Programme, being implemented in Portugal by "Parque Escolar, EPE", is based on the pursuit of quality and makes Portuguese education a potential international benchmark. This paper discusses the strategies adopted to reorganise school spaces. It describes the conceptual model and highlights…

  12. Publishing South African scholarship in the global academic community

    PubMed Central

    le Roux, Elizabeth

    2015-01-01

    South Africa's academic publishing history has been profoundly influenced by its colonial heritage. This is reflected in the publication of Transactions of the South African Philosophical Society (later, the Royal Society of South Africa) from 1878. Although the Society and journal sought to promote original research about South Africa, it was modelled after the Royal Society in London and formed part of an imperial scientific community. As the local higher education institutions grew more independent and research-focused, local scholarly publishing developed as well, with university presses playing an increasingly important role. The University of South Africa (Unisa) Press started publishing departmental journals in the 1950s, with a focus on journals that ‘speak to the student’, and it is today the only South African university press with an active journals publishing programme. As external funding declined and the country became intellectually isolated in the high apartheid period, the Press managed to attract journals that could no longer be subsidized by learned societies and other universities. More recently, new co-publishing arrangements have brought South African journals back into an international intellectual community. Although some argue that this constitutes a re-colonization of South African knowledge production, it is also an innovative strategy for positioning local research in a global context. PMID:26495579

  13. Enhancing collaboration between China and African countries for schistosomiasis control.

    PubMed

    Xu, Jing; Yu, Qing; Tchuenté, Louis-Albert Tchuem; Bergquist, Robert; Sacko, Moussa; Utzinger, Jürg; Lin, Dan-Dan; Yang, Kun; Zhang, Li-Juan; Wang, Qiang; Li, Shi-Zhu; Guo, Jia-Gang; Zhou, Xiao-Nong

    2016-03-01

    Schistosomiasis remains an important public health issue, with a large number of cases reported across sub-Saharan Africa, and parts of Asia and Latin America. China was once highly endemic, but has made substantial progress and is moving towards elimination of schistosomiasis. Meanwhile, despite long-term, repeated, school-based chemotherapy in many African countries, more than 90% of all schistosomiasis cases are concentrated in Africa, and hence, this continent constitutes the key challenge for schistosomiasis control. Opportunities and issues for international collaboration in the fight against schistosomiasis are outlined with a focus on China's experiences, including the role of public health authorities and intersectoral collaboration, use of new and effective snail control approaches and diagnostic tools adapted to the specific stage of control, as well as the strengthening of risk mapping and surveillance-response mechanisms. Training courses targeting African governmental officials and professionals, coupled with field visits of African scientists and control programme managers to China, and vice versa, are considered important for improved schistosomiasis control and elimination. The crucial question remains whether the Chinese experience can be translated and applied in African countries to improve the effectiveness of health interventions and scale-up.

  14. African Schoolnet Toolkit

    ERIC Educational Resources Information Center

    Marquard, Stephen

    2005-01-01

    A schoolnet program is an organized set of activities that expands the use of ICTs and promotes sharing of educational resources by teachers and students at schools. Schoolnet programmes may be located inside or outside government, may be large initiatives with substantial funding, or may be smaller innovative projects without big budgets. The…

  15. Adult Learners' Perceptions of An Undergraduate HRD Degree Completion Programme: Reasons for Entering, Attitudes towards Programme and Impact of Programme

    ERIC Educational Resources Information Center

    Dwyer, Dan; Thompson, Dale Edward; Thompson, Cecelia K.

    2013-01-01

    The purpose of the study was to evaluate an undergraduate distance education (DE) programme based upon adult learners' perceptions. The study investigated the value of the Human Resource Development programme at the University of Arkansas by examining the students' reasons for returning to college, their attitudes towards the programme and the…

  16. The Effects of Architecture and Process on the Hardness of Programmable Technologies

    NASA Technical Reports Server (NTRS)

    Katz, Richard; Wang, J. J.; Reed, R.; Kleyner, I.; DOrdine, M.; McCollum, J,; Cronquist, B.; Howard, J.

    1999-01-01

    Architecture and process, combined, significantly affect the hardness of programmable technologies. The effects of high energy ions, ferroelectric memory architectures, and shallow trench isolation are investigated. A detailed single event latchup (SEL) study has been performed.

  17. 3D-Flow processor for a programmable Level-1 trigger (feasibility study)

    SciTech Connect

    Crosetto, D.

    1992-10-01

    A feasibility study has been made to use the 3D-Flow processor in a pipelined programmable parallel processing architecture to identify particles such as electrons, jets, muons, etc., in high-energy physics experiments.

  18. Energy.

    ERIC Educational Resources Information Center

    Shanebrook, J. Richard

    This document describes a course designed to acquaint students with the many societal and technological problems facing the United States and the world due to the increasing demand for energy. The course begins with a writing assignment that involves readings on the environmental philosophy of Native Americans and the Chernobyl catastrophe.…

  19. Overview of the ESO instrumentation programme

    NASA Astrophysics Data System (ADS)

    Casali, Mark M.; Pasquini, Luca; Ramsay, Suzanne

    2012-09-01

    The ESO instrumentation programme now encompasses both an on-going programme for La-Silla Paranal observatory and a new programme for construction of the instruments for the E-ELT. The scale and ambition of the combined programme will present a future challenge for the European instrument-building community and for ESO as managing organisation. The current status and plans are summarised.

  20. Understanding traditional African healing

    PubMed Central

    MOKGOBI, M.G.

    2015-01-01

    Traditional African healing has been in existence for many centuries yet many people still seem not to understand how it relates to God and religion/spirituality. Some people seem to believe that traditional healers worship the ancestors and not God. It is therefore the aim of this paper to clarify this relationship by discussing a chain of communication between the worshipers and the Almighty God. Other aspects of traditional healing namely types of traditional healers, training of traditional healers as well as the role of traditional healers in their communities are discussed. In conclusion, the services of traditional healers go far beyond the uses of herbs for physical illnesses. Traditional healers serve many roles which include but not limited to custodians of the traditional African religion and customs, educators about culture, counselors, social workers and psychologists. PMID:26594664

  1. The JOSHUA (J80) system programmer`s manual

    SciTech Connect

    Smetana, A.O.; McCort, J.T.; Westmoreland, B.W.

    1993-08-01

    The JOSHUA system routines (JS routines) can be used to manage a JOSHUA data base and execute JOSHUA modules on VAX/VMS and IBM/MVS computer systems. This manual provides instructions for using the JS routines and information about the internal data structures and logic used by the routines. It is intended for use primarily by JOSHUA systems programmers, however, advanced applications programmers may also find it useful. The JS routines are, as far as possible, written in ANSI FORTRAN 77 so that they are easily maintainable and easily portable to different computer systems. Nevertheless, the JOSHUA system provides features that are not available in ANSI FORTRAN 77, notably dynamic module execution and a data base of named, variable length, unformatted records, so some parts of the routines are coded in nonstandard FORTRAN or assembler (as a last resort). In most cases, the nonstandard sections of code are different for each computer system. To make it easy for programmers using the JS routines to avoid naming conflicts, the JS routines and common block all have six character names that begin with the characters {open_quotes}JS.{close_quotes} Before using this manual, one should be familiar with the JOSHUA system as described in {open_quotes}The JOSHUA Users` Manual,{close_quotes} ANSI FORTRAN 77, and at least one of the computer systems for which the JS routines have been implemented.

  2. Ectoparasites of African Mammals.

    DTIC Science & Technology

    1976-11-30

    This study consisted of ectoparasites from approximately 100,000 African small mammals, representing probably more than 500 species of which many are...study of ectoparasites may provide information concerning interactions among animal reservoirs of disease, and (3) an understanding of ecological...parameters for ectoparasites and their hosts may enhance understanding of epidemiological patterns. Of the four major groups dealt with, considerably more

  3. Programme Evaluation: Maintaining Quality in Higher Education

    ERIC Educational Resources Information Center

    Loots, A.

    2008-01-01

    The evaluation of educational or social programmes is paramount for establishing success or impact in higher education. Evaluation questions about programme goals (e.g. better performance of first-year students) or about the quality of programme strategies (design and implementation) and effectiveness of delivery (coordinator inputs and…

  4. School Security Assessment Programme in Australia

    ERIC Educational Resources Information Center

    Marrapodi, John

    2007-01-01

    This article describes a successful security risk management programme in Australia. The state-wide programme follows a structured risk management approach focusing on the safety and security of people, information, provision, and assets in the school environment. To assist school principals, a Security Risk Assessment Programme was developed on a…

  5. 21 CFR 870.3700 - Pacemaker programmers.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Pacemaker programmers. 870.3700 Section 870.3700...) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Prosthetic Devices § 870.3700 Pacemaker programmers. (a) Identification. A pacemaker programmer is a device used to change noninvasively one or more...

  6. 21 CFR 870.3700 - Pacemaker programmers.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Pacemaker programmers. 870.3700 Section 870.3700...) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Prosthetic Devices § 870.3700 Pacemaker programmers. (a) Identification. A pacemaker programmer is a device used to change noninvasively one or more...

  7. 21 CFR 870.3700 - Pacemaker programmers.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Pacemaker programmers. 870.3700 Section 870.3700...) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Prosthetic Devices § 870.3700 Pacemaker programmers. (a) Identification. A pacemaker programmer is a device used to change noninvasively one or more...

  8. 21 CFR 870.3700 - Pacemaker programmers.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Pacemaker programmers. 870.3700 Section 870.3700...) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Prosthetic Devices § 870.3700 Pacemaker programmers. (a) Identification. A pacemaker programmer is a device used to noninvasively change one or more...

  9. Stakeholder Perspectives: CLIL Programme Management in Estonia

    ERIC Educational Resources Information Center

    Mehisto, Peeter; Asser, Hiie

    2007-01-01

    In 2000, Estonia launched a voluntary Estonian language CLIL programme for seven year-olds in four Russian-medium schools. The programme has expanded rapidly to a total of 48 kindergartens and schools. This paper reports on research into stakeholder perspectives on programme management. In addition to surveying parents, teachers, vice-principals…

  10. Diversity among African Pygmies

    PubMed Central

    Ramírez Rozzi, Fernando V.; Sardi, Marina L.

    2010-01-01

    Although dissimilarities in cranial and post-cranial morphology among African pygmies groups have been recognized, comparative studies on skull morphology usually pull all pygmies together assuming that morphological characters are similar among them and different with respect to other populations. The main aim of this study is to compare cranial morphology between African pygmies and non-pygmies populations from Equatorial Africa derived from both the Eastern and the Western regions in order to test if the greatest morphological difference is obtained in the comparison between pygmies and non-pygmies. Thirty three-dimensional (3D) landmarks registered with Microscribe in four cranial samples (Western and Eastern pygmies and non-pygmies) were obtained. Multivariate analysis (generalized Procrustes analysis, Mahalanobis distances, multivariate regression) and complementary dimensions of size were evaluated with ANOVA and post hoc LSD. Results suggest that important cranial shape differentiation does occur between pygmies and non-pygmies but also between Eastern and Western populations and that size changes and allometries do not affect similarly Eastern and Western pygmies. Therefore, our findings raise serious doubt about the fact to consider African pygmies as a homogenous group in studies on skull morphology. Differences in cranial morphology among pygmies would suggest differentiation after divergence. Although not directly related to skull differentiation, the diversity among pygmies would probably suggest that the process responsible for reduced stature occurred after the split of the ancestors of modern Eastern and Western pygmies. PMID:21049030

  11. Human African trypanosomiasis.

    PubMed

    Lejon, Veerle; Bentivoglio, Marina; Franco, José Ramon

    2013-01-01

    Human African trypanosomiasis or sleeping sickness is a neglected tropical disease that affects populations in sub-Saharan Africa. The disease is caused by infection with the gambiense and rhodesiense subspecies of the extracellular parasite Trypanosoma brucei, and is transmitted to humans by bites of infected tsetse flies. The disease evolves in two stages, the hemolymphatic and meningoencephalitic stages, the latter being defined by central nervous system infection after trypanosomal traversal of the blood-brain barrier. African trypanosomiasis, which leads to severe neuroinflammation, is fatal without treatment, but the available drugs are toxic and complicated to administer. The choice of medication is determined by the infecting parasite subspecies and disease stage. Clinical features include a constellation of nonspecific symptoms and signs with evolving neurological and psychiatric alterations and characteristic sleep-wake disturbances. Because of the clinical profile variability and insidiously progressive central nervous system involvement, disease staging is currently based on cerebrospinal fluid examination, which is usually performed after the finding of trypanosomes in blood or other body fluids. No vaccine being available, control of human African trypanosomiasis relies on diagnosis and treatment of infected patients, assisted by vector control. Better diagnostic tools and safer, easy to use drugs are needed to facilitate elimination of the disease.

  12. The Implementation of a Behavioural Support Programme: Teachers' Perceptions of the Programme and Themselves as Providers

    ERIC Educational Resources Information Center

    Ingemarson, Maria; Bodin, Maria; Rubenson, Birgitta; Guldbrandsson, Karin

    2016-01-01

    Purpose: The purpose of this paper is to investigate how teachers received and perceived the school programme Prevention in School (PS), a positive behavioural support programme; how did the teachers perceive the programme characteristics and themselves as providers; and how did this affect programme implementation? Design/methodology/approach:…

  13. East African Rift Valley, Kenya

    NASA Technical Reports Server (NTRS)

    1990-01-01

    This rare, cloud free view of the East African Rift Valley, Kenya (1.5N, 35.5E) shows a clear view of the Turkwell River Valley, an offshoot of the African REift System. The East African Rift is part of a vast plate fracture which extends from southern Turkey, through the Red Sea, East Africa and into Mozambique. Dark green patches of forests are seen along the rift margin and tea plantations occupy the cooler higher ground.

  14. PROGRAMMABLE DISPLAY PUSHBUTTON LEGEND EDITOR

    NASA Technical Reports Server (NTRS)

    Busquets, A. M.

    1994-01-01

    The Programmable Display Pushbutton (PDP) is a pushbutton device available from Micro Switch which has a programmable 16 x 35 matrix of LEDs on the pushbutton surface. Any desired legends can be displayed on the PDPs, producing user-friendly applications which greatly reduce the need for dedicated manual controls. Because the PDP can interact with the operator, it can call for the correct response before transmitting its next message. It is both a simple manual control and a sophisticated programmable link between the operator and the host system. The Programmable Display Pushbutton Legend Editor, PDPE, is used to create the LED displays for the pushbuttons. PDPE encodes PDP control commands and legend data into message byte strings sent to a Logic Refresh and Control Unit (LRCU). The LRCU serves as the driver for a set of four PDPs. The legend editor (PDPE) transmits to the LRCU user specified commands that control what is displayed on the LED face of the individual pushbuttons. Upon receiving a command, the LRCU transmits an acknowledgement that the message was received and executed successfully. The user then observes the effect of the command on the PDP displays and decides whether or not to send the byte code of the message to a data file so that it may be called by an applications program. The PDPE program is written in FORTRAN for interactive execution. It was developed on a DEC VAX 11/780 under VMS. It has a central memory requirement of approximately 12800 bytes. It requires four Micro Switch PDPs and two RS-232 VAX 11/780 terminal ports. The PDPE program was developed in 1985.

  15. Programmable data collection platform study

    NASA Technical Reports Server (NTRS)

    1976-01-01

    The results of a feasibility study incorporating microprocessors in data collection platforms in described. An introduction to microcomputer hardware and software concepts is provided. The influence of microprocessor technology on the design of programmable data collection platform hardware is discussed. A standard modular PDCP design capable of meeting the design goals is proposed, and the process of developing PDCP programs is examined. A description of design and construction of the UT PDCP development system is given.

  16. The Effects of an Enhanced Quality Physical Education Programme on the Physical Activity Levels of Grade 7 Learners in Potchefstroom, South Africa

    ERIC Educational Resources Information Center

    Tian, Haili; du Toit, Dorita; Toriola, Abel L.

    2017-01-01

    Background: The absence of Physical Education (PE) from the South African school curriculum before its reintroduction in recent years contributed to health concerns regarding the low physical activity (PA) levels of children and adolescents in South Africa. Purpose: This study evaluated the effects of a once-a-week enhanced quality PE programme on…

  17. Healthcare Programmes for Truck Drivers in Sub-Saharan Africa: A Systematic Review and Meta-Analysis

    PubMed Central

    Lalla-Edward, Samanta Tresha; Fobosi, Siyabulela Christopher; Hankins, Catherine; Case, Kelsey; Venter, W. D. Francois; Gomez, Gabriela

    2016-01-01

    Background Truck drivers have unique health needs, and by virtue of their continuous travel, experience difficulty in accessing healthcare. Currently, planning for effective care is hindered by lack of knowledge about their health needs and about the impact of on-going programmes on this population’s health outcomes. We reviewed healthcare programmes implemented for sub-Saharan African truck drivers, assessed the evaluation methods, and examined impact on health outcomes. Methods We searched scientific and institutional databases, and online search engines to include all publications describing a healthcare programme in sub-Saharan Africa where the main clients were truck drivers. We consulted experts and organisations working with mobile populations to identify unpublished reports. Forest plots of impact and outcome indicators with unadjusted risk ratios and 95% confidence intervals were created to map the impact of these programmes. We performed a subgroup analysis by type of indicator using a random-effects model to assess between-study heterogeneity. We conducted a sensitivity analysis to examine both the summary effect estimate chosen (risk difference vs. risk ratio) and model to summarise results (fixed vs. random effects). Results Thirty-seven publications describing 22 healthcare programmes across 30 countries were included from 5,599 unique records. All programmes had an HIV-prevention focus with only three expanding their services to cover conditions other primary healthcare services. Twelve programmes were evaluated and most evaluations assessed changes in input, output, and outcome indicators. Absence of comparison groups, preventing attribution of the effect observed to the programme and lack of biologically confirmed outcomes were the main limitations. Four programmes estimated a quantitative change in HIV prevalence or reported STI incidence, with mixed results, and one provided anecdotal evidence of changes in AIDS-related mortality and social

  18. French wind power generation programme EOLE 2005 - first results

    SciTech Connect

    Laali, A.R.; Benard, M.

    1997-12-31

    EOLE 2005 has been launched in July 1996 by the French Ministry of Industry, Electricite de France and ADEME (Agency for Environment and Energy Management). The Ministries of Research and Environment are participating also in this programme. The purpose is to create an initial market in France for wind power generation in order to evaluate the cost-effectiveness and the competitiveness of the wind energy compared to other energy sources by 2005. The installed capacity will reach at least 250 MW and possibly 500 MW.

  19. Elder Abuse among African Americans

    ERIC Educational Resources Information Center

    Tauriac, Jesse J.; Scruggs, Natoschia

    2006-01-01

    Perceptions of extreme, moderate, and mild forms of elder abuse among African-American women (n=25) and men (n=10) were examined. African-American respondents emphasized physical abuse when giving examples of extremely abusive behavior. Along with physical abuse, verbal abuse was the most frequently identified form of abuse, and was significantly…

  20. African ethics and voluntary euthanasia.

    PubMed

    Omonzejele, P F

    2004-01-01

    This paper outlines the relationship between euthanasia and its ethical norms and practices in a part of West Africa. The various sub-types of euthanasia are described in detail, parallel with the role of African ethical theories in determining their relevance. The author discusses the implications of this approach relative to the social and economic state of African communities.

  1. African American Administrators and Staff

    ERIC Educational Resources Information Center

    Wright, Dianne; Taylor, Janice D.; Burrell, Charlotte; Stewart, Gregory

    2006-01-01

    This article explores the issues of African American participation in the administrative ranks of the academy. The authors find that African Americans tend to hold positions that are marginal in academic organizations, lacking power and influence, and that not much has changed over recent decades. Forces influencing this condition are explored,…

  2. African-Americans and Alcoholism.

    ERIC Educational Resources Information Center

    Sigmon, Scott B.

    To better serve people in a counseling relationship, it is useful to understand them not only culturally, but demographically as well. This paper traces historical, religious, demographic aspects and treatment of alcohol abuse in African Americans. Historically, alcohol abuse and alcohol dependence have varied for African Americans. During the…

  3. Africanization in the United States

    PubMed Central

    Pinto, M. Alice; Rubink, William L.; Patton, John C.; Coulson, Robert N.; Johnston, J. Spencer

    2005-01-01

    The expansion of Africanized honeybees from South America to the southwestern United States in <50 years is considered one of the most spectacular biological invasions yet documented. In the American tropics, it has been shown that during their expansion Africanized honeybees have low levels of introgressed alleles from resident European populations. In the United States, it has been speculated, but not shown, that Africanized honeybees would hybridize extensively with European honeybees. Here we report a continuous 11-year study investigating temporal changes in the genetic structure of a feral population from the southern United States undergoing Africanization. Our microsatellite data showed that (1) the process of Africanization involved both maternal and paternal bidirectional gene flow between European and Africanized honeybees and (2) the panmitic European population was replaced by panmitic mixtures of A. m. scutellata and European genes within 5 years after Africanization. The post-Africanization gene pool (1998–2001) was composed of a diverse array of recombinant classes with a substantial European genetic contribution (mean 25–37%). Therefore, the resulting feral honeybee population of south Texas was best viewed as a hybrid swarm. PMID:15937139

  4. Control of the African trypanosomiases with special reference to land use*

    PubMed Central

    Ford, John

    1969-01-01

    There is a need to reassess the role of the trypanosomiases, both human and animal, in African ecology and economy. Withdrawal of control services from the Congo basin was followed by a resurgence of infection from ancient foci, many of them thought to have been extinguished. Successful elimination of Glossina in savanna habitats has sometimes been followed by reinvasion causing massive epizootics. Elsewhere continued recession of the tsetse fly has been followed by cattle population growth which is periodically interrupted by catastrophic pasture famines. Efficiency of control rather than large-scale eradication should be the immediate aim. Efficient control keeps trypanosomiasis at a tolerable level in relation to the competence of medical and veterinary services and ensures that the beneficial effects of disease in maintaining a balance between natural resource potential of the continent and the energy output of its inhabitants, are retained until they can be replaced by new social and economic controls integrated in local cultures. Many ideas about control planning formulated before 1960 are now irrelevant. To provide foundations for a new policy 3 requirements must be fulfilled. The first is to understand the nature of natural foci of infection of trypanosomiasis; the second is to collate knowledge of land-use potentials of the fly-belts; the third is to find a means of integrating information to achieve balanced control programmes. To do this a formal mathematical study of the epidemiology and epizootiology of the trypanosomiases should be initiated. PMID:5307600

  5. Video telehealth for weight maintenance of African-American women.

    PubMed

    Gerber, Ben S; Schiffer, Linda; Brown, Allison A; Berbaum, Michael L; Rimmer, James H; Braunschweig, Carol L; Fitzgibbon, Marian L

    2013-07-01

    We evaluated the effect of home telehealth on weight maintenance after a group-based weight loss programme. The home telehealth intervention comprised telephone counselling and home Internet-enabled digital video recorders (DVRs) with three channels of video programmes. The video content provided reinforcement and support to promote problem solving, prevent relapse and sustain motivation. Eighty-eight obese or overweight African-American women were randomized to receive monthly telephone counselling (control) or the home telehealth intervention. The weight change during maintenance was not significant in either group (0.6 kg in the intervention group, 0.0 kg in the control group), and there was no significant difference between them. Changes in diet, physical activity, social support and self-efficacy during the maintenance period did not differ significantly between groups. DVR use was low: during the intervention, the number of valid DVR viewings ranged from zero to 42 per person. DVR use was positively associated with previous attendance at the weight loss classes. Home video-based telehealth is a new method of delivering a weight loss maintenance intervention to African-American women. It had no effect on weight maintenance in the present study.

  6. African easterly wave energetics on intraseasonal timescales

    NASA Astrophysics Data System (ADS)

    Alaka, Ghassan J., Jr.

    African easterly waves (AEWs) are synoptic-scale eddies that dominate North African weather in boreal summer. AEWs propagate westward with a maximum amplitude near 700 hPa and a period of 2.5-6-days. AEWs and associated perturbation kinetic energy (PKE) exhibit significant intraseasonal variability in tropical North Africa during boreal summer, which directly impacts local agriculture and tropical cyclogenesis. This study performs a comprehensive analysis of the 30-90-day variability of AEWs and associated energetics using both reanalysis data and model output. Specifically, the PKE and perturbation available potential energy (PAPE) budgets are used to understand the factors that contribute to PKE maxima in West Africa and the extent to which these surges of AEW activity are modulated by the Madden-Julian oscillation (MJO). The role of the MJO in the intraseasonal variability of AEWs is assessed by comparing PKE sources as a function of an MJO index and a local 30-90-day West African PKE index. Since East Africa is an initiation zone for AEW activity and is modulated by the MJO, the relationship between this region and West Africa is a primary focus in this study. The intraseasonal variability of AEW energetics is first investigated in reanalysis products. While reanalysis data depicts a similar evolution of 30-90-day PKE anomalies in both the MJO and a local PKE index, the MJO index describes only a small (yet still significant) fraction of the local 30-90-day variance. In boreal summers with more significant MJO days, the correlation between the two indices is higher. Baroclinic energy conversions are important for the initiation of 30-90-day West African PKE events east of Lake Chad. In West Africa, both barotropic and baroclinic energy conversions maintain positive PKE anomalies before they propagate into the Atlantic. The primary role of diabatic heating is to destroy PAPE in a negative feedback to baroclinic energy conversions in West Africa. More frequent

  7. Cancer statistics for African Americans.

    PubMed

    Ghafoor, Asma; Jemal, Ahmedin; Cokkinides, Vilma; Cardinez, Cheryll; Murray, Taylor; Samuels, Alicia; Thun, Michael J

    2002-01-01

    The American Cancer Society provides estimates on the number of new cancer cases and deaths, and compiles health statistics on African Americans in a biennial publication, Cancer Facts and Figures for African Americans. The compiled statistics include cancer incidence, mortality, survival, and lifestyle behaviors using the most recent data on incidence and survival from the National Cancer Institute's (NCI) Surveillance, Epidemiology, and End Results (SEER) program, mortality data from the National Center for Health Statistics (NCHS), and behavioral information from the Behavior Risk Factor Surveillance System (BRFSS), Youth Risk Behavior Surveillance System (YRBSS), and National Health Interview Survey (NHIS). It is estimated that 132,700 new cases of cancer and 63,100 deaths will occur among African Americans in the year 2003. Although African Americans have experienced higher incidence and mortality rates of cancer than whites for many years, incidence rates have declined by 2.7 percent per year in African-American males since 1992, while stabilizing in African-American females. During the same period, death rates declined by 2.1 percent and 0.4 percent per year among African-American males and females, respectively. The decrease in both incidence and death rates from cancer among African-American males was the largest of any racial or ethnic group. Nonetheless, African Americans still carry the highest cancer burden among US racial and ethnic groups. Most cancers detectable by screening are diagnosed at a later stage and survival rates are lower within each stage of disease in African Americans than in whites. The extent to which these disparities reflect unequal access to health care versus other factors is an active area of research.

  8. Nonvolatile, electrically erasable programmable ROM

    NASA Astrophysics Data System (ADS)

    El-Dessouky, A.

    1984-01-01

    The processing technology for integration of MNOS-EEPROMs and NMOS Logic was investigated as p-well isolation. Memory characteristics of both Si gate and metal gate MNOS devices are investigated for nitride constitution which aims for lower programming voltages and good memory performance. The complete fabrication process for 128 byte SNOS-EEPROM chip is described by using high voltage depletion MOS devices in p-well technology. Another test vehicle uses 4 x 4 metal gate MNOS array to demonstrate possible fabrication of 12 V programmable scaled MNOS devices with 10 years retention after 10 to the 5th power endurance.

  9. Programmable, automated transistor test system

    NASA Technical Reports Server (NTRS)

    Truong, L. V.; Sundburg, G. R.

    1986-01-01

    A programmable, automated transistor test system was built to supply experimental data on new and advanced power semiconductors. The data will be used for analytical models and by engineers in designing space and aircraft electric power systems. A pulsed power technique was used at low duty cycles in a nondestructive test to examine the dynamic switching characteristic curves of power transistors in the 500 to 1000 V, 10 to 100 A range. Data collection, manipulation, storage, and output are operator interactive but are guided and controlled by the system software.

  10. Toxicological programmes and teaching methods.

    PubMed

    Bergendorff, A

    2000-03-15

    Toxicological knowledge is required for three main purposes: basic and applied research, toxicity testing, and risk assessment. Curricula and teaching methods designed to meet these demands for knowledge are aimed at appropriation of relevant facts, appreciation of causality and an overall understanding of biological events caused by chemical substances. The Toxicology Programme at Karolinska Institutet is considered as an example for the design of appropriate courses. Teaching methods developed towards more self-tuition are becoming a natural part of such education. Continued escalation in scientific achievements and demands for safe use of chemicals will govern future trends in toxicological education.

  11. Programmable Multi-Chip Module

    DOEpatents

    Kautz, David; Morgenstern, Howard; Blazek, Roy J.

    2005-05-24

    A multi-chip module comprising a low-temperature co-fired ceramic substrate having a first side on which are mounted active components and a second side on which are mounted passive components, wherein this segregation of components allows for hermetically sealing the active components with a cover while leaving accessible the passive components, and wherein the passive components are secured using a reflow soldering technique and are removable and replaceable so as to make the multi-chip module substantially programmable with regard to the passive components.

  12. Programmable Multi-Chip Module

    DOEpatents

    Kautz, David; Morgenstern, Howard; Blazek, Roy J.

    2004-11-16

    A multi-chip module comprising a low-temperature co-fired ceramic substrate having a first side on which are mounted active components and a second side on which are mounted passive components, wherein this segregation of components allows for hermetically sealing the active components with a cover while leaving accessible the passive components, and wherein the passive components are secured using a reflow soldering technique and are removable and replaceable so as to make the multi-chip module substantially programmable with regard to the passive components.

  13. Programmable Automated Welding System (PAWS)

    NASA Technical Reports Server (NTRS)

    Kline, Martin D.

    1994-01-01

    An ambitious project to develop an advanced, automated welding system is being funded as part of the Navy Joining Center with Babcock & Wilcox as the prime integrator. This program, the Programmable Automated Welding System (PAWS), involves the integration of both planning and real-time control activities. Planning functions include the development of a graphical decision support system within a standard, portable environment. Real-time control functions include the development of a modular, intelligent, real-time control system and the integration of a number of welding process sensors. This paper presents each of these components of the PAWS and discusses how they can be utilized to automate the welding operation.

  14. The IAEA technical cooperation programme and nuclear medicine in the developing world: objectives, trends, and contributions.

    PubMed

    Casas-Zamora, Juan Antonio; Kashyap, Ridhi

    2013-05-01

    The International Atomic Energy Agency's technical cooperation (TC) programme helps Member States in the developing world with limited infrastructure and human resource capacity to harness the potential of nuclear technologies in meeting socioeconomic development challenges. As a part of its human health TC initiatives, the Agency, through the TC mechanism, has the unique role of promoting nuclear medicine applications of fellowships, scientific visits, and training courses, via technology procurement, and in the past decade has contributed nearly $54 million through 180 projects in supporting technology procurement and human resource capacity development among Member States from the developing world (low- and middle-income countries). There has been a growing demand in nuclear medicine TC, particularly in Africa and ex-Soviet Union States where limited infrastructure presently exists, based on cancer and cardiovascular disease management projects. African Member States received the greatest allocation of TC funds in the past 10 years dedicated to building new or rehabilitating obsolete nuclear medicine infrastructure through procurement support of single-photon emission computed tomography machines. Agency support in Asia and Latin America has emphasized human resource capacity building, as Member States in these regions have already acquired positron emission tomography and hybrid modalities (positron emission tomography/computed tomography and single-photon emission computed tomography/computed tomography) in their health systems. The strengthening of national nuclear medicine capacities among Member States across different regions has enabled stronger regional cooperation among developing countries who through the Agency's support and within the framework of regional cooperative agreements are sharing expertise and fostering the sustainability and productive integration of nuclear medicine within their health systems.

  15. Towards the Atlas of human African trypanosomiasis

    PubMed Central

    Cecchi, Giuliano; Paone, Massimo; Franco, José R; Fèvre, Eric M; Diarra, Abdoulaye; Ruiz, José A; Mattioli, Raffaele C; Simarro, Pere P

    2009-01-01

    Background Updated, accurate and comprehensive information on the distribution of human African trypanosomiasis (HAT), also known as sleeping sickness, is critically important to plan and monitor control activities. We describe input data, methodology, preliminary results and future prospects of the HAT Atlas initiative, which will allow major improvements in the understanding of the spatial distribution of the disease. Methods Up-to-date as well as historical data collected by national sleeping sickness control programmes, non-governmental organizations and research institutes have been collated over many years by the HAT Control and Surveillance Programme of the World Health Organization. This body of information, unpublished for the most part, is now being screened, harmonized, and analysed by means of database management systems and geographical information systems (GIS). The number of new HAT cases and the number of people screened within a defined geographical entity were chosen as the key variables to map disease distribution in sub-Saharan Africa. Results At the time of writing, over 600 epidemiological reports and files from seventeen countries were collated and included in the data repository. The reports contain information on approximately 20,000 HAT cases, associated to over 7,000 different geographical entities. The oldest epidemiological records considered so far date back to 1985, the most recent having been gathered in 2008. Data from Cameroon, Central African Republic, Chad, Congo, Equatorial Guinea and Gabon from the year 2000 onwards were fully processed and the preliminary regional map of HAT distribution is presented. Conclusion The use of GIS tools and geo-referenced, village-level epidemiological data allow the production of maps that substantially improve on the spatial quality of previous cartographic products of similar scope. The significant differences between our preliminary outputs and earlier maps of HAT transmission areas

  16. Results of the Finnish bioenergy research programme

    SciTech Connect

    Asplund, D.A.; Helynen, S.A.

    1995-11-01

    The aim of the Finnish Bioenergy Research Programme for the period 1993-1998 is to increase the use of economically profitable and environmentally sound bioenergy by improving the competitiveness of biofuels. The main research areas are production methods of wood fuels, peat production, use of bioenergy and conversion of biomass to bio-oils. The total funding of the Bioenergy Research Programme is estimated to be 50 million USD which includes the public funding and also funding from the industrial sources. The total number of the projects in 1994 were 60, and 23 of them were at universities and research institutes, 20 industrial and 17 demonstration projects. The integrated harvesting methods, which would produce both wood raw material for pulp mills and wood fuel for energy production, have been further developed and partly demonstrated. The Massahake method, based on several different successive separation phases, has showed a debarking result for birch and bark content below 1% and economical calculations show that the method can be profitable. A full scale Massahake demonstration plant started during the spring 1995. Feeding of solid fuel into high pressure is an essential part of the pressurized power plant processes. Two new pressurized piston feeders, which could substitute lock-hopper systems and high inert gas consumption, have been designed and tested. IGCC (Integrated Gasification Combined Cycle)-concepts for biomass need require a low moisture content of the fuel. A new dryer concept based on a fixed bed dryer ha been developed and tested. In research on conversion technology, new results have been created related to pyrolysis oil and upgrading processes for different pulp industry raw material producing bio-oils. Economical calculations showed that pyrolysis oil could be competitive compared to light fuel oil.

  17. Nigeria's Satellite Programme Development: Prospects and Challenges

    NASA Astrophysics Data System (ADS)

    Akinyede, Joseph

    Nigeria's desire to maximize the benefits of space technology for its sustainable development, has become a reality with the establishment of the National Space Research and Development Agency (NASRDA) in May 1999 and the approval of the national Space Policy and Programmes in July 2001. In November, 2000, the Federal Government took a bold step with the signing of an agreement with the Surrey Satellite Technology Limited (SSTL) of United Kingdom (UK) for the design, construction and launch of a medium resolution micro-satellite - NigeriaSat-1 with a Ground Sampling Distance of thirty-two (32) meters. The agreement also covers the Know-How-Technology-Training (KHTT) to Nigerian Engineers and Scientists for a period of 18th months at SSTL‘s facility in the U.K.. NigeriaSat-1 was successfully launched into Leo Earth Orbit on 27th September, 2003. NigeriaSat- 1 is one of the five (5) satellites belonging to Nigeria, Algeria, Turkey, United Kingdom and China being operated in a Disaster Monitoring Constellation (DMC). The launch of NigeriaSat-1 has promoted access to information which has become a strategy for mass socio-economic development, as information underscores all developmental effort be it in education, provision of health services, marketing, construction industry, tourism, defense, etc. As a follow-up to the successful launch of NigeriaSat-1, the government of Nigeria started the implementation of a Nigerian communication satellite (NigcomSat-1) to address the problem of communication which is the greatest drawbacks to the socio-economic development of the country, particularly in the areas of rural telephone, tele-education, tele-medicine, egovernment, e-commerce and real-time monitoring services. NigcomSat-1, which carries 40- hybrid transponders in the C, KU, KA and L bands, has a 15 years life span and coverage of the African continent, Middle East and part of Europe was launched in May 2007. To satisfy geospatial data needs in sectors such as survey

  18. East African ROAD

    NASA Astrophysics Data System (ADS)

    Tekle, Kelali

    2016-10-01

    In the developing world astronomy had been treated as the science of elites. As a result of this overwhelming perception, astronomy compared with other applied sciences has got less attention and its role in development has been insignificant. However, the IAU General Assembly decision in 2009 opened new opportunity for countries and professionals to deeply look into Astronomy and its role in development. Then, the subsequent establishment of regional offices in the developing world is helping countries to integrate astronomy with other earth and space based sciences so as to progressively promote its scientific and development importance. Gradually nations have come to know that space is the frontier of tomorrow and the urgency of preeminence on space frontier starts at primary school and ascends to tertiary education. For this to happen, member nations in east African region have placed STEM education at the center of their education system. For instance, Ethiopian has changed University enrollment strategy to be in favor of science and engineering subjects, i.e. every year seventy percent of new University entrants join science and engineering fields while thirty percent social science and humanities. Such bold actions truly promote astronomy to be conceived as gateway to science and technology. To promote the concept of astronomy for development the East African regional office has actually aligned it activities to be in line with the focus areas identified by the IAU strategy (2010 to 2020).

  19. African oil plays

    SciTech Connect

    Clifford, A.J. )

    1989-09-01

    The vast continent of Africa hosts over eight sedimentary basins, covering approximately half its total area. Of these basins, only 82% have entered a mature exploration phase, 9% have had little or no exploration at all. Since oil was first discovered in Africa during the mid-1950s, old play concepts continue to bear fruit, for example in Egypt and Nigeria, while new play concepts promise to become more important, such as in Algeria, Angola, Chad, Egypt, Gabon, and Sudan. The most exciting developments of recent years in African oil exploration are: (1) the Gamba/Dentale play, onshore Gabon; (2) the Pinda play, offshore Angola; (3) the Lucula/Toca play, offshore Cabinda; (4) the Metlaoui play, offshore Libya/Tunisia; (5) the mid-Cretaceous sand play, Chad/Sudan; and (6) the TAG-I/F6 play, onshore Algeria. Examples of these plays are illustrated along with some of the more traditional oil plays. Where are the future oil plays likely to develop No doubt, the Saharan basins of Algeria and Libya will feature strongly, also the presalt of Equatorial West Africa, the Central African Rift System and, more speculatively, offshore Ethiopia and Namibia, and onshore Madagascar, Mozambique, and Tanzania.

  20. Loiasis: African eye worm.

    PubMed

    Padgett, Jeannie J; Jacobsen, Kathryn H

    2008-10-01

    The filarial parasite Loa loa is transmitted by Chrysops fly bites. Loiasis is endemic in rainforest areas of West and Central Africa, and sporadic cases have also been diagnosed in travellers and migrants. Whilst many infected persons are asymptomatic, microfilariae may be detected in the blood or adult worms may be seen under the skin or the sclera of the eye. Mass treatment programmes for onchocerciasis have raised concern about the risk of severe adverse effects when ivermectin is distributed in areas co-endemic for onchocerciasis and loiasis.

  1. A Bibliography of African Languages and Linguistics.

    ERIC Educational Resources Information Center

    Murphy, John D., Comp.; Goff, Harry, Comp.

    The present bibliography of African languages and linguistics includes not only works relating to the "Negro-African" languages, but also those dealing with the African varieties of Arabic, the Hamitic languages, Malagasy, Afrikaans, and various Creoles. (The greater part of the entries relate to the indigenous languages of the African continent…

  2. GMES Space Component: Programme overview

    NASA Astrophysics Data System (ADS)

    Aschbacher, J.; Milagro-Perez, M. P.

    2012-04-01

    The European Union (EU) and the European Space Agency (ESA) have developed the Global Monitoring for Environment and Security (GMES) programme as Europe's answer to the vital need for joined-up data about our climate, environment and security. Through a unique combination of satellite, atmospheric and Earth-based monitoring systems, the initiative will provide new insight into the state of the land, sea and air, providing policymakers, scientists, businesses and the public with accurate and timely information. GMES capabilities include monitoring and forecasting of climatic change, flood risks, soil and coastal erosion, crop and fish resources, air pollution, greenhouse gases, iceberg distribution and snow cover, among others. To accomplish this, GMES has been divided into three main components: Space, In-situ and Services. The Space Component, led by ESA, comprises five types of new satellites called Sentinels that are being developed by ESA specifically to meet the needs of GMES, the first of which to be launched in 2013. These missions carry a range of technologies, such as radar and multi-spectral imaging instruments for land, ocean and atmospheric monitoring. In addition, access to data from the so-called Contributing Missions guarantees that European space infrastructure is fully used for GMES. An integrated Ground Segment ensures access to Sentinels and Contributing Missions data. The in-situ component, under the coordination of the European Environment Agency (EEA), is composed of atmospheric and Earth based monitoring systems, and based on established networks and programmes at European and international levels. The European Commission is in charge of implementing the services component of GMES and of leading GMES overall. GMES services, fed with data from the Space and In-situ components, will provide essential information in five main domains, atmosphere, ocean and land monitoring as well as emergency response and security. Climate change has been added

  3. [RESAOLAB: West African network of laboratories to enhance the quality of clinical biology].

    PubMed

    Delorme, L; Machuron, J L; Sow, I; Diagne, R; Sakandé, J; Nikiéma, A; Bougoudogo, F; Keita, A; Longuet, C

    2015-02-01

    The Fondation Mérieux, in partnership with the Ministries of Health of Burkina Faso, Mali and Senegal, implemented for four years a project to reinforce the laboratory sector in the three participating countries: the RESAOLAB project (West African Network of Biomedical Analysis Laboratories).The objective of RESAOLAB project, in partnership with the WHO Office for West Africa and the West African Health Organization, was to strengthen the systems of biomedical laboratories to improve diagnostic services, access, monitoring and management of infectious diseases. Following the successful results achieved under the RESAOLAB project and due to the demand of the neighbour countries ministries, the RESAOLAB project is now extended to four other countries of the West African region: Benin, Guinea-Conakry, Niger and Togo. The RESAOLAB project has become the RESAOLAB programme, its purpose is to strengthen the quality of the medical biology services thanks to a regional and transversal approach.

  4. Selective breeding: the future of TB management in African buffalo?

    PubMed

    le Roex, N; Berrington, C M; Hoal, E G; van Helden, P D

    2015-09-01

    The high prevalence of bovine tuberculosis (BTB) in African buffalo (Syncerus caffer) in regions of southern African has a negative economic impact on the trade of animals and animal products, represents an ecological threat to biodiversity, and poses a health risk to local communities through the wildlife-cattle-human interface. Test and cull methods may not be logistically feasible in many free-range wildlife systems, and with the presence of co-existing BTB hosts and the limited effectiveness of the BCG vaccine in buffalo, there is a need for alternative methods of BTB management. Selective breeding for increased resistance to BTB in buffalo may be a viable method of BTB management in the future, particularly if genetic information can be incorporated into these schemes. To explore this possibility, we discuss the different strategies that can be employed in selective breeding programmes, and consider the implementation of genetic improvement schemes. We reflect on the suitability of applying this strategy for enhanced BTB resistance in African buffalo, and address the challenges of this approach that must be taken into account. Conclusions and the implications for management are presented.

  5. Hand-Rearing, Release and Survival of African Penguin Chicks Abandoned Before Independence by Moulting Parents

    PubMed Central

    Sherley, Richard B.; Waller, Lauren J.; Strauss, Venessa; Geldenhuys, Deon; Underhill, Les G.; Parsons, Nola J.

    2014-01-01

    The African penguin Spheniscus demersus has an ‘Endangered’ conservation status and a decreasing population. Following abandonment, 841 African penguin chicks in 2006 and 481 in 2007 were admitted to SANCCOB (Southern African Foundation for the Conservation of Coastal Birds) for hand-rearing from colonies in the Western Cape, South Africa, after large numbers of breeding adults commenced moult with chicks still in the nest. Of those admitted, 91% and 73% respectively were released into the wild. There were veterinary concerns about avian malaria, airsacculitis and pneumonia, feather-loss and pododermatitis (bumblefoot). Post-release juvenile (0.32, s.e.  = 0.08) and adult (0.76, s.e.  = 0.10) survival rates were similar to African penguin chicks reared after oil spills and to recent survival rates recorded for naturally-reared birds. By December 2012, 12 birds had bred, six at their colony of origin, and the apparent recruitment rate was 0.11 (s.e.  = 0.03). Hand-rearing of abandoned penguin chicks is recommended as a conservation tool to limit mortality and to bolster the population at specific colonies. The feasibility of conservation translocations for the creation of new colonies for this species using hand-reared chicks warrants investigation. Any such programme would be predicated on adequate disease surveillance programmes established to minimise the risk of disease introduction to wild birds. PMID:25337698

  6. Hand-rearing, release and survival of African penguin chicks abandoned before independence by moulting parents.

    PubMed

    Sherley, Richard B; Waller, Lauren J; Strauss, Venessa; Geldenhuys, Deon; Underhill, Les G; Parsons, Nola J

    2014-01-01

    The African penguin Spheniscus demersus has an 'Endangered' conservation status and a decreasing population. Following abandonment, 841 African penguin chicks in 2006 and 481 in 2007 were admitted to SANCCOB (Southern African Foundation for the Conservation of Coastal Birds) for hand-rearing from colonies in the Western Cape, South Africa, after large numbers of breeding adults commenced moult with chicks still in the nest. Of those admitted, 91% and 73% respectively were released into the wild. There were veterinary concerns about avian malaria, airsacculitis and pneumonia, feather-loss and pododermatitis (bumblefoot). Post-release juvenile (0.32, s.e.  = 0.08) and adult (0.76, s.e.  = 0.10) survival rates were similar to African penguin chicks reared after oil spills and to recent survival rates recorded for naturally-reared birds. By December 2012, 12 birds had bred, six at their colony of origin, and the apparent recruitment rate was 0.11 (s.e.  = 0.03). Hand-rearing of abandoned penguin chicks is recommended as a conservation tool to limit mortality and to bolster the population at specific colonies. The feasibility of conservation translocations for the creation of new colonies for this species using hand-reared chicks warrants investigation. Any such programme would be predicated on adequate disease surveillance programmes established to minimise the risk of disease introduction to wild birds.

  7. Building a global business continuity programme.

    PubMed

    Lazcano, Michael

    2014-01-01

    Business continuity programmes provide an important function within organisations, especially when aligned with and supportive of the organisation's goals, objectives and organisational culture. Continuity programmes for large, complex international organisations, unlike those for compact national companies, are more difficult to design, build, implement and maintain. Programmes for international organisations require attention to structural design, support across organisational leadership and hierarchy, seamless integration with the organisation's culture, measured success and demonstrated value. This paper details practical, but sometimes overlooked considerations for building successful global business continuity programmes.

  8. Clinical access to Bedaquiline Programme for the treatment of drug-resistant tuberculosis.

    PubMed

    Conradie, F; Meintjes, G; Hughes, J; Maartens, G; Ferreira, H; Siwendu, S; Master, I; Ndjeka, N

    2014-03-01

    While clinical disease caused by drug-sensitive Mycobacterium tuberculosis (MTB) can usually be treated successfully, clinical disease caused by drug-insensitive MTB is associated with a poorer prognosis. In December 2012, a new drug, bedaquiline, was approved by the US Food and Drug Administration. This article documents the process whereby the National Department of Health, Right to Care and Médecins Sans Frontières obtained access to this medication for South Africans who might benefit from subsequent implementation of the Clinical Access to Bedaquiline Programme.

  9. Health library partnership programmes between resource-poor countries and Western Europe.

    PubMed

    Shaw, J G

    2001-12-01

    A survey of health library partnerships between the UK and northern European countries and African or eastern European countries was undertaken to complement a similar survey of 24 North American health libraries. Out of 11 partnerships described, six provided sufficient data to be included in a quantitative analysis. These results give some baseline data about such partnerships and their activities, reasons for success and problems encountered. Some libraries have little involvement other than sending duplicate books and journals; others are more deeply involved in all aspects of library activity including professional development. Good communications, both human and technological, are important for maintaining partnership momentum. Staff commitment on both sides and institutional support for the partnership are essential, especially when programmes have costs which must be met either by the institution or outside funders. The financial consequences of partnership may inhibit their initiation, but successful partnerships with demand driven programmes bring benefits to both sides.

  10. The African Millennium Villages

    PubMed Central

    Sanchez, Pedro; Palm, Cheryl; Sachs, Jeffrey; Denning, Glenn; Flor, Rafael; Harawa, Rebbie; Jama, Bashir; Kiflemariam, Tsegazeab; Konecky, Bronwen; Kozar, Raffaela; Lelerai, Eliud; Malik, Alia; Modi, Vijay; Mutuo, Patrick; Niang, Amadou; Okoth, Herine; Place, Frank; Sachs, Sonia Ehrlich; Said, Amir; Siriri, David; Teklehaimanot, Awash; Wang, Karen; Wangila, Justine; Zamba, Colleen

    2007-01-01

    We describe the concept, strategy, and initial results of the Millennium Villages Project and implications regarding sustainability and scalability. Our underlying hypothesis is that the interacting crises of agriculture, health, and infrastructure in rural Africa can be overcome through targeted public-sector investments to raise rural productivity and, thereby, to increased private-sector saving and investments. This is carried out by empowering impoverished communities with science-based interventions. Seventy-eight Millennium Villages have been initiated in 12 sites in 10 African countries, each representing a major agroecological zone. In early results, the research villages in Kenya, Ethiopia, and Malawi have reduced malaria prevalence, met caloric requirements, generated crop surpluses, enabled school feeding programs, and provided cash earnings for farm families. PMID:17942701

  11. [African population in history].

    PubMed

    Yang, S

    1984-11-29

    The growth rate of the African population has been fluctuating throughout history, affected by political, social, and economic events. 6000 years ago, the majority of the population was based in North Africa, because farming had been developed there. However, between the 11th and the 16th centuries, there was a constant decline in the population of that region, due to invasions from Europe and the black plague. During the same period, the population in the area south of the Sahara grew rapidly, as people there had gone into the iron tool period and farming had been developed. From the 16th to the mid-17th Century, population growth was considerable in Africa; more people had learned the technology of irrigation, corn and potatoes had been introduced from South America, and colonialism was not yet an issue. From the mid-17th to the mid-19th Century, there was no growth, due to the slave trade and wars between tribes. One estimate sets the direct and indirect loss during this period, as a result of the slave trade, at 100 million people. From the 1850s to the end of World War I, population growth started up again, chiefly influenced by the fact that the slave trade had essentially come to a half and modern medical care had become available on the continent. However, in central Africa, the region which suffered the worst blow from the slave trade, growth was very slow, while in East Africa the population was declining because of wars between colonists and natives, as well as natural disasters. Increases in population during this period were a result of immigration from Europe and India. From the end of World War I to the present, growth has been rapid, given improvements in medical services and standards of living, while most of the former colonies became independent after the 1950s. Consequently, almost all African countries are under great pressure now with regard to their populations.

  12. Central African Republic.

    PubMed

    1989-11-01

    The Central African Republic contains 242,000 square miles, which rolling terrain almost 2000 feet above sea level. The climate is tropical, and it has a population of 2.8 million people with a 2.5% growth rate. There are more than 80 ethnic groups including Baya 34%, Banda 28%, Sara 10%, Mandja 9%, Mboum 9%, and M'Baka 7%. The religions are traditional African 35%, protestant 25%, Roman Catholic 25%, and Muslim 15%, and the languages are French and Sangho. The infant mortality rate is 143/1000, with expectancy at 49 years and a 40% literacy rate. The work force of 1 million is 70% agricultural, industry 6% and commerce and service 6% and government 3%. The government consists of a president assisted by cabinet ministers and a single party. Natural resources include diamonds, uranium, timber, gold, and oil, and major industries are beverages, textiles, and soap. Agricultural products feature coffee, cotton, peanuts, tobacco, food crops and livestock. Most of the population live in rural areas and most of the 80 ethnic groups have their own language. This is one of the world's least developed countries, with a per capita income of $375/year. The main problems with development are the poor transportation infrastructure, and the weak internal and international marketing systems. The US and various international organizations have aided in agriculture development, health programs, and family planning. US investment is mainly in diamond and gold mining, and although oil drilling has been successful it is not economically feasible at current prices.

  13. The European eLearning Programme(s): Between Rhetoric and Reality

    ERIC Educational Resources Information Center

    Salajan, Florin D.

    2007-01-01

    This article presents the findings of a qualitative study conducted by the author on the implications of e-learning programmes for the higher education systems of the member states of the European Union. The study takes a look behind the scenes of the eLearning Programme and other e-learning actions within other European programmes by tapping into…

  14. Aurora europe's space exploration programme

    NASA Astrophysics Data System (ADS)

    Ongaro, F.; Swings, J. P.; Condessa, R.

    2003-04-01

    What will happen after the ISS in terms of space exploration, specifically to the human presence beyond Earth? What will be the role of Europe in the future international venture to explore space? What are the most immediate actions to be undertaken in Europe in order to best profit from the efforts made through the participation in the ISS and to position Europe's capabilities according to its interests? As approved by the Ministers at the Edinburgh Council in November 2001, the European Space Exploration Programme - Aurora - is ESA's programme in charge of defining and implementing the long term plan for human and robotic exploration of the Solar system. The Aurora programme started in 2002 and extends until the end goal of Aurora: the first human mission to Mars, expected in the 2025-2030 time-frame. The approach of Aurora is to implement a robust development of technologies and robotic missions, in parallel to the utilization phase of the ISS, to prepare for a continuous and sustainable future of human space exploration (which shall include the Moon, Mars and the asteroids as targets), in which Europe will be a valuable partner. Two classes of missions are foreseen in the programme's strategy: Flagships, defined as major missions driving to soft landing, in-situ analysis, sample return from other planetary bodies and eventually human missions; and Arrows, defined as cost-capped, short development time missions to demonstrate new technologies or mission approaches, or to exploit opportunities for payloads on European or international missions. So far the participating national delegations have approved two Flagships (ExoMars and Mars Sample Return) and two Arrows (Earth Re-entry and Mars Aerocapture) for phase A industrial studies. Although the last call for ideas of Aurora resulted in the definition of two Flagship missions targeted to Mars, the next one might be aimed to the Moon. At this stage the role of the Moon, on the path of Mars exploration is not

  15. Rheumatic Fever Programme in Samoa.

    PubMed

    Viali, Satupaitea; Saena, Puleiala; Futi, Vailogoua

    2011-02-11

    Rheumatic fever is very common in Samoa. The following paper describes the Rheumatic Fever Programme in Samoa and looks at the incidence of acute rheumatic fever (ARF) and rheumatic heart disease (RHD). The incidence of ARF has decreased to 30 per 100,000 in 2005, 12.8 per 100,000 in 2007, 7.3 per 100,000 in 2008, and 9.5 per 100,000 in 2009. The incidence of RHD has decreased to 40.2 per 100,000 in 2007, 34 per 100,000 in 2008, and 31.8 per 100,000 in 2009. Cardiac surgery in New Zealand is expensive, but is cheaper to perform in Samoa. RHD screening with echocardiogram at schools may be the best way to reduce the burden and suffering from RHD.

  16. African Passages: Journaling through Archetypes.

    ERIC Educational Resources Information Center

    Spencer, Patricia

    1990-01-01

    Explores how students (through an awareness of literary archetypes and journal writing) can use African stories to cross cultures, time, and continents, making connections between their worlds and the worlds of others. (MG)

  17. Early African Hominids: Pedagogic Patterns.

    ERIC Educational Resources Information Center

    Newman, James L.

    1984-01-01

    By studying early African hominids, students can learn about the interactive testing and creative aspects of scientific thinking and sharpen their geographical skills. It is impossible to study this topic without giving prominence to space and time. (RM)

  18. African-Americans and Alzheimer's

    MedlinePlus

    ... African-Americans are at a higher risk for Alzheimer's disease. Many Americans dismiss the warning signs of Alzheimer's, ... two times more likely to develop late-onset Alzheimer's disease than whites and less likely to have a ...

  19. Erasmus Mundus SEN: The Inclusive Scholarship Programme?

    ERIC Educational Resources Information Center

    Grinbergs, Christopher J.; Jones, Hilary

    2013-01-01

    The Erasmus Mundus MA/Mgr in Special Education Needs (EM SEN) was created as a Masters Course funded by the European Commission's Erasmus Mundus Programme (EMP) to challenge and educate students in inclusive policy and practice in education. Yet, it is debatable the extent to which this programme embodies the values of an inclusive approach,…

  20. Equivalency Programmes (EPs) for Promoting Lifelong Learning

    ERIC Educational Resources Information Center

    Haddad, Caroline, Ed.

    2006-01-01

    Equivalency programmes (EPs) refers to alternative education programmes that are equivalent to the formal education system in terms of curriculum and certification, policy support mechanisms, mode of delivery, staff training, and other support activities such as monitoring, evaluation and assessment. The development of EPs is potentially an…

  1. Using Programmable Calculators to Evaluate Complicated Formulas.

    ERIC Educational Resources Information Center

    Snover, Stephen L.; Spikell, Mark A.

    The application of the programmable calculator to evaluating complicated formulas is illustrated by considering the formula for finding the area of any triangle when only the lengths of the three sides are known. Other advantages of the programmable calculator are discussed such as freeing the student to explore more challenging problems and…

  2. Students' Perception of Industrial Internship Programme

    ERIC Educational Resources Information Center

    Renganathan, Sumathi; Karim, Zainal Ambri Bin Abdul; Li, Chong Su

    2012-01-01

    Purpose: An important aspect of an academic curriculum in higher learning institutions for technical disciplines is the industrial internship programme for students. The purpose of this paper is to investigate students' perception of the effectiveness of an industrial internship programme offered by a private technological university in Malaysia.…

  3. Perceived value in food selection when dining out: comparison of African Americans and Euro-Americans.

    PubMed

    Vinci, Debra M; Philipp, Steven F

    2007-06-01

    This descriptive study compares African Americans' and Euro-Americans' perceived value of food selection pertaining to cost, portion size, and meal satisfaction when eating away from home. A stratified sample was drawn from a southern U.S. metropolitan area (N= 1,011; 486 African American, 525 Euro-American). Analysis showed no difference between African-American and Euro-American adults by sex or how often they dined out. These two groups significantly differed across years of education, age, and answering 14 of 18 rated statements on value perceptions. African-Americans' value perceptions were influenced more by lower cost foods and larger portion sizes than those of Euro-Americans. For meal satisfaction, African Americans were more likely to agree with statements that indicate preferring foods high in energy and low in essential micronutrient density. This study supports the need for more investigation.

  4. Mean glandular dose in a breast screening programme

    SciTech Connect

    Galvan, H. A.; Perez-Badillo, M. P.; Villasenor, Y.

    2012-10-23

    Breast density has an important role in early detection of breast cancer, because has been reported the strong association between breast density and invasive breast cancer risk. Mammography is the gold standard to early detection of breast cancer, despite of this require ionizing radiation that may increase radio-induced cancer risk. This maybe limited with a quality control programme of mammographic units, with the main goal of achieving high quality images with low radiation dose. International Atomic Energy Agency (IAEA) published in 2011 the {sup Q}uality assurance programme for digital mammography{sup ,} where glandular tissue quantity is an important parameter to compute mean glandular dose (MGD), which is necessary to reduce its associated risk. In this work we show the first results in our country applying this protocol and studying breast density in a small group. MGD complies with national and IAEA dose limits.

  5. Hepatitis C in African Americans.

    PubMed

    Saab, Sammy; Jackson, Christian; Nieto, Jose; Francois, Fritz

    2014-10-01

    The care of hepatitis C virus (HCV) in African Americans represents an opportunity to address a major health disparity in medicine. In all facets of HCV infection, African Americans are inexplicably affected, including in the prevalence of the virus, which is higher among them compared with most of the racial and ethnic groups. Ironically, although fibrosis rates may be slow, hepatocellular carcinoma and mortality rates appear to be higher among African Americans. Sustained viral response (SVR) rates have historically significantly trailed behind Caucasians. The reasons for this gap in SVR are related to both viral and host factors. Moreover, low enrollment rates in clinical trials hamper the study of the efficacy of anti-viral therapy. Nevertheless, the gap in SVR between African Americans and Caucasians may be narrowing with the use of direct-acting agents. Gastroenterologists, hepatologists, primary care physicians, and other health-care providers need to address modifiable risk factors that affect the natural history, as well as treatment outcomes, for HCV among African Americans. Efforts need to be made to improve awareness among health-care providers to address the differences in screening and referral patterns for African Americans.

  6. African communalism and public health policies: the relevance ofindigenous concepts of personal identity to HIV/AIDS policies in Botswana.

    PubMed

    Jensen, Kipton; Gaie, Joseph Br

    2010-09-01

    This article explores the possible relevance of African communalism to HIV/AIDS policies in Botswana and other parts of sub-Saharan Africa. We examine various interpretations of African communalism, which many consider to be the cardinal insight of African thought. We suggest several applications of this indigenous notion of personhood to HIV prevention in general and to routine HIV-testing policies in particular. This analysis demonstrates some of the ethical dilemmas and cultural complexities inherent in designing as well as implementing effective HIV-prevention programmes that strike a conscientious balance between protecting individual freedoms and securing public health. Recovering past traditions (such as African conceptions of personal identity) is valuable not only for the purpose of self-identification but also for helping us meet the challenges and problems of today in Africa. We also suggest that the human-rights-based approach to HIV prevention, which strives to protect individuals, is possibly incompatible with the socio-ethical ideals espoused by African communalism. We conclude that public health programmes in Botswana and other parts of sub-Saharan Africa would be more effective if those who designed and implemented them possessed a better understanding of indigenous conceptions of personhood or human agency as well as existing ethno-medical beliefs and cultural practices.

  7. XML does Real Programmers a Service

    SciTech Connect

    Gorton, Ian

    2008-09-01

    As the sun slowly sets of this first decade of the new millenium, it seems appropriate to update the sojourn of the real programmers as they adapt to their ever changing technical and business environment. Real Programmers were perfectly characterized and differentiated from their quiche-eating, Pascal programming brethren in Ed Post’s seminal “Real Programmers Don’t Use Pascal” (Datamation, 1983). My follow-up ("Real programmers do use Delphi," Software, IEEE , vol.12, no.6, pp.8, 10, 12-, Nov 1995) charted their evolution from FORTRAN-only programmers to embracing a wider range of mainstream languages and tools that still afforded ample opportunity for creativity, game-playing, irregular work hours, and importantly, long-term job security.

  8. A modularized pulse programmer for NMR spectroscopy

    NASA Astrophysics Data System (ADS)

    Mao, Wenping; Bao, Qingjia; Yang, Liang; Chen, Yiqun; Liu, Chaoyang; Qiu, Jianqing; Ye, Chaohui

    2011-02-01

    A modularized pulse programmer for a NMR spectrometer is described. It consists of a networked PCI-104 single-board computer and a field programmable gate array (FPGA). The PCI-104 is dedicated to translate the pulse sequence elements from the host computer into 48-bit binary words and download these words to the FPGA, while the FPGA functions as a sequencer to execute these binary words. High-resolution NMR spectra obtained on a home-built spectrometer with four pulse programmers working concurrently demonstrate the effectiveness of the pulse programmer. Advantages of the module include (1) once designed it can be duplicated and used to construct a scalable NMR/MRI system with multiple transmitter and receiver channels, (2) it is a totally programmable system in which all specific applications are determined by software, and (3) it provides enough reserve for possible new pulse sequences.

  9. Programmer`s manual for CAMCON: Compliance Assessment Methodology CONtroller

    SciTech Connect

    Rechard, R.P.; Gilkey, A.P.; Rudeen, D.K.; Byle, K.A.; Iuzzolino, H.J.

    1993-05-01

    CAMCON, the Compliance Assessment Methodology CONtroller, is an analysis system that assists in assessing the compliance of the Waste Isolation Pilot Plant (WIPP) with applicable long-term regulations of the US Environmental Protection Agency, including Subpart B of the Environmental Standards for the Management and Disposal of spent Nuclear Fuel, High-Level and Transuranic Radioactive Wastes, 40 CFR 191 and 40CFR268.6, which is the portion of the Land Disposal Restrictions implementing the Resource, Conservative, and Recovery Act of 1976, as amended that states the conditions for disposal of hazardous chemical wastes. This manual provides an architectural overview of the CAMCON system. Furthermore this manual presents guidelines and presents suggestions for programmers developing the many different types of software necessary to investigate various events and physical processes of the WIPP. These guidelines include user interface requirements, minimum quality assurance requirements, coding style suggestions, and the use of numerous software libraries developed specifically for or adapted for the CAMCON system.

  10. Do Tutors Matter? Assessing the Impact of Tutors on First-Year Academic Performance at a South African University

    ERIC Educational Resources Information Center

    McKay, Tracey Morton

    2016-01-01

    This research sought to determine if a teaching intervention using tutors in a South African university could promote epistemological access to university for first-year students. Although hiring, developing and managing tutors takes money, time and energy, the effectiveness of tutors in the South African context is underreported. The first-year…

  11. Phylogenomics of African guenons.

    PubMed

    Moulin, Sibyle; Gerbault-Seureau, Michèle; Dutrillaux, Bernard; Richard, Florence Anne

    2008-01-01

    The karyotypes of 28 specimens belonging to 26 species of Cercopithecinae have been compared with each other and with human karyotype by chromosome banding and, for some of them, by Zoo-FISH (human painting probes) techniques. The study includes the first description of the karyotypes of four species and a synonym of Cercopithecus nictitans. The chromosomal homologies obtained provide us with new data on a large number of rearrangements. This allows us to code chromosomal characters to draw Cercopithecini phylogenetic trees, which are compared to phylogenetic data based on DNA sequences. Our findings show that some of the superspecies proposed by Kingdon (1997 The Kingdon Field Guide to African Mammals, Academic Press.) and Groves (2001 Primates Taxonomy, Smithsonian Institution Press) do not form homogeneous groups and that the genus Cercopithecus is paraphyletic, in agreement with previous molecular analyses. The evolution of Cercopithecini karyotypes is mainly due to non-centromeric chromosome fissions and centromeric shifts or inversions. Non-Robertsonian translocations occurred in C. hamlyni and C. neglectus. The position of chromosomal rearrangements in the phylogenetic tree leads us to propose that the Cercopithecini evolution proceeded by either repeated fission events facilitated by peculiar genomic structures or successive reticulate phases, in which heterozygous populations for few rearranged chromosomes were present, allowing the spreading of chromosomal forms in various combinations, before the speciation process.

  12. An African ethic for nursing?

    PubMed

    Haegert, S

    2000-11-01

    This article derives from a doctoral thesis in which a particular discourse was used as a 'paradigm case'. From this discourse an ethic set within a South African culture arose. Using many cultural 'voices' to aid the understanding of this narrative, the ethic shows that one can build on both a 'justice' and a 'care' ethic. With further development based on African culture one can take the ethic of care deeper and reveal 'layers of understanding'. Care, together with compassion, forms the foundation of morality. Nursing ethics has followed particular western moral philosophers. Often nursing ethics has been taught along the lines of Kohlberg's theory of morality, with its emphasis on rules, rights, duties and general obligations. These principles were universalistic, masculine and noncontextual. However, there is a new ethical movement among Thomist philosophers along the lines to be expounded in this article. Nurses such as Benner, Bevis, Dunlop, Fry and Gadow--to name but a few--have welcomed the concept of an 'ethic of care'. Gilligan's work gave a feminist view and situated ethics in the everyday aspects of responsiveness, responsibility, context and concern. Shutte's search for a 'philosophy for Africa' has resulted in finding similarities in Setiloane and in Senghor with those of Thomist philosophers. Using this African philosophy and a research participant's narrative, an African ethic evolves out of the African proverb: 'A person is a person through other persons', or its alternative rendering: 'I am because we are: we are because I am.' This hermeneutic narrative reveals 'the way affect imbues activity with ethical meaning' within the context of a black nursing sister in a rural South African hospital. It expands upon the above proverb and incorporates the South African constitutional idea of 'Ubuntu' (compassion and justice or humanness).

  13. Mission reliability model programmers guide

    NASA Astrophysics Data System (ADS)

    Medina, Joseph M.; Simonson, Jonathan H.; Veatch, Michael H.

    1986-12-01

    The Mission Reliability Model (MIREM) has been developed to evaluate the reliability and sustained operating capability of advanced electronic circuits during the early stages of development. MIREM is applicable to integrated systems that achieve fault tolerance through dynamic fault detection, fault isolation, and reconfiguration. The model can also be valuable in evaluating designs that employ only dedicated or hard-wired redundancy. The most unique feature of MIREM is its ability to accurately reflect the impact of reconfigurable, competing functions on system reliability. The user defines the resources necessary to support a required function, e.g., Global Positioning System (GPS), and the model will compute the probability of losing that functional capability over a certain operating time. A critical failure occurs when there is not a sufficient number of working resources to support a specified function. As an analytic model, MIREM determines a value for Mean Time Between Critical Failure, Mission Completion Success Probability, and Failure Resiliency. The MIREM Programmers Guide addresses the model's program structure, function of routines, interdependence of subprograms and common blocks, and file usage. The information needed to port the model to other computer systems is also provided.

  14. How do we measure up? A comparison of lifestyle-related health risk factors among sampled employees in South African and UK companies.

    PubMed

    Milner, Karen; da Silva, Roseanne; Patel, Deepak; Salau, Sulaiman

    2016-07-12

    The need to address the growing prevalence of non-communicable diseases through changing the lifestyle behaviours that contribute to them has become a global priority. Settings-based health promotion strategies such as workplace health promotion programmes are growing in an attempt to start meeting this need. In order for settings-based health promotion programmes to be successful, they need to be based on the specific risk profiles of the population for whom they are designed. Workplace health promotion programmes are becoming popular in South Africa, but there are currently few data available about the health risks and lifestyle behaviours of the South African employed population. In order to obtain such data and reward workplace health promotion initiatives, Discovery Health initiated healthy company campaigns in South Africa and the UK. These campaigns took the form of a competition to assess the healthiest companies in each country. Through these campaigns, an extensive data set was collected encompassing UK and South African employees' lifestyle behaviours and health risks. In this article, we used these data to compare self-reported physical activity levels, self-reported fruit and vegetable consumption, calculated BMI, self-reported smoking, mental health indicators, and health screening status of the UK and South African employee samples. We found significant differences across all measures, with the exception of self-reported fruit and vegetable consumption. The findings emphasise the importance of using local data to tailor workplace health promotion programmes for the population for which the programmes have been designed.

  15. Programmable Optoelectronic Multiprocessors And Their Comparison With Symbolic Substitution For Digital Optical Computing

    NASA Astrophysics Data System (ADS)

    Kiamilev, F.; Esener, Sadik C.; Paturi, R.; Fainmar, Y.; Mercier, P.; Guest, C. C.; Lee, Sing H.

    1989-04-01

    This paper introduces programmable arrays of optically inter-connected electronic processors and compares them with conventional symbolic substitution (SS) systems. The comparison is made on the basis of computational efficiency, speed, size, energy utilization, programmability, and fault tolerance. The small grain size and space-invariant connections of SS lead to poor computational efficiency, difficult programming, and difficult incorporation of fault tolerance. Reliance on optical gates as its fundamental building elements is shown to give poor energy utilization. Programmable optoelectronic multiprocessor (POEM) systems, on the other hand, provide the architectural flexibility for good computational efficiency, use an energy-efficient combination of technologies, and support traditional programming methodologies and fault tolerance. Although the inherent clock speed of POEM systems is slower than that of SS systems, for most problems they will provide greater computational throughput. This comparison does not take into account the recent addition of crossover interconnect and space-variant masks to the SS architecture.

  16. In vitro adenine nucleotide catabolism in African catfish spermatozoa.

    PubMed

    Zietara, Marek S; Słomińska, Ewa; Rurangwa, Eugene; Ollevier, Frans; Swierczyński, Julian; Skorkowski, Edward F

    2004-08-01

    It has been shown recently that African catfish (Clarias gariepinus) spermatozoa possess relatively low ATP content and low adenylate energy charge (AEC). One of the possible explanations for this phenomenon is that the spermatozoa actively catabolize adenine nucleotides. A relatively high rate of such catabolism could then contribute to the low ATP concentration and low adenylate energy charge observed in the spermatozoa in vitro. To check this hypothesis, we investigated ATP content and adenine nucleotide catabolism in African catfish spermatozoa stored at 4 degrees C in the presence of glycine as an energetic substrate. Our results indicate that the storage of African catfish sperm at 4 degrees C in the presence of glycine causes time-dependent ATP depletion. In contrast to ATP, the AMP content increases significantly during the same period of sperm storage, while the ADP increases only slightly. Moreover, a significant increase of inosine and hypoxanthine content was also found. Hypoxanthine was accumulated in the storage medium, but xanthine was found neither in spermatozoa nor in the storage medium. It indicates that hypoxanthine is not converted to xanthine, probably due to lack of xanthine oxidase activity in catfish spermatozoa. Present results suggest that adenine nucleotides may be converted to hypoxanthine according to the following pathway: ATP-->ADP-->AMP (adenosine/IMP)-->inosine-->hypoxanthine. Moreover, hypoxanthine seems to be the end product of adenine nucleotide catabolism in African catfish spermatozoa. In conclusion, our results suggest that a relatively high rate of adenine nucleotide catabolism contributes to the low ATP concentration and low adenylate energy charge observed in African catfish spermatozoa in vitro.

  17. Lessons from a microfinance recapitalisation programme.

    PubMed

    Poston, Angus

    2010-04-01

    Following a major disaster, microfinance institutions (MFIs) often face high levels of bad debt, which may require the institutions to be recapitalised. This paper describes a recapitalisation programme implemented by the SANASA movement of Sri Lanka in 390 microfinance societies following the December 2004 tsunami, and highlights lessons for other similar programmes. MFI recapitalisation is a good use of funds in post-disaster situations. To create successful programmes, donors should expect to relax some of their usual project requirements and MFIs should focus on maintaining credit discipline.

  18. Safety programmes in the Egyptian construction industry.

    PubMed

    Hassanein, Amr A G; Hanna, Ragaa S

    2007-12-01

    This study is aimed at exploring the nature of the safety programmes applied by large-size contractors operating in Egypt. Results revealed that safety programmes applied by those contractors were less formal than the programmes applied by their American counterparts. Only three contractors out of the surveyed sample had accident records broken down by projects, provided workers with formal safety orientation, and trained safety personnel on first-aid. The study recommended that reforms to the scheme of the employers' contribution to social insurance are necessary. This is meant to serve as a strong incentive for safety management.

  19. Software Safety Assurance of Programmable Logic

    NASA Technical Reports Server (NTRS)

    Berens, Kalynnda

    2002-01-01

    Programmable Logic (PLC, FPGA, ASIC) devices are hybrids - hardware devices that are designed and programmed like software. As such, they fall in an assurance gray area. Programmable Logic is usually tested and verified as hardware, and the software aspects are ignored, potentially leading to safety or mission success concerns. The objective of this proposal is to first determine where and how Programmable Logic (PL) is used within NASA and document the current methods of assurance. Once that is known, raise awareness of the PL software aspects within the NASA engineering community and provide guidance for the use and assurance of PL form a software perspective.

  20. Construction of programmable interconnected 3D microfluidic networks

    NASA Astrophysics Data System (ADS)

    Hunziker, Patrick R.; Wolf, Marc P.; Wang, Xueya; Zhang, Bei; Marsch, Stephan; Salieb-Beugelaar, Georgette B.

    2015-02-01

    Microfluidic systems represent a key-enabling platform for novel diagnostic tools for use at the point-of-care in clinical contexts as well as for evolving single cell diagnostics. The design of 3D microfluidic systems is an active field of development, but construction of true interconnected 3D microfluidic networks is still a challenge, in particular when the goal is rapid prototyping, accurate design and flexibility. We report a novel approach for the construction of programmable 3D microfluidic systems consisting of modular 3D template casting of interconnected threads to allow user-programmable flow paths and examine its structural characteristics and its modular function. To overcome problems with thread template casting reported in the literature, low-surface-energy polymer threads were used, that allow solvent-free production. Connected circular channels with excellent roundness and low diameter variability were created. Variable channel termination allowed programming a flow path on-the-fly, thus rendering the resulting 3D microfluidic systems highly customizable even after production. Thus, construction of programmable/reprogrammable fully 3D microfluidic systems by template casting of a network of interconnecting threads is feasible, leads to high-quality and highly reproducible, complex 3D geometries.

  1. African American Preschoolers' Language, Emergent Literacy Skills, and Use of African American English: A Complex Relation

    ERIC Educational Resources Information Center

    Connor, Carol McDonald; Craig, Holly K.

    2006-01-01

    Purpose: This study examined the relation between African American preschoolers' use of African American English (AAE) and their language and emergent literacy skills in an effort to better understand the perplexing and persistent difficulties many African American children experience learning to read proficiently. Method: African American…

  2. Technical Consulting: The African-American Perspective

    ERIC Educational Resources Information Center

    Whitfield, Tracy N.

    2010-01-01

    The qualitative research study explored the organizational characteristics necessary in addressing the low concentration of African American technical consultants employed in the information technology industry. Using research participants' professional experience, participants responded to a developed questionnaire. African American technical…

  3. African N Assessment

    NASA Astrophysics Data System (ADS)

    Bekunda, M.; Galford, G. L.; Hickman, J. E.; Palm, C.

    2011-12-01

    Africa's smallholder agricultural systems face unique challenges in planning for reducing poverty, concurrent with adaptation and mitigation to climate change. At continental level, policy seeks to promote a uniquely African Green Revolution to increase crop yields and food production, and improve local livelihoods. However, the consequences on the environment and climate are not clear; these pro-economic development measures should be linked to climate change adaptation and mitigation measures, and research is required to help achieve these policy proposals by identifying options, and testing impacts. In particular, increased nitrogen (N) inputs are essential for increasing food production in Africa, but are accompanied by inevitable increases in losses to the environment. These losses appear to be low at input levels promoted in agricultural development programs, while the increased N inputs both increase current food production and appear to reduce the vulnerability of food production to changes in climate. We present field and remote sensing evidence from Malawi that subsidizing improved seed and fertilizers increases resilience to drought without adding excess N to the environment. In Kenya, field research identified thresholds in N2O losses, where emissions are very low at fertilization rates of less than 200 kg ha-1. Village-scale models have identified potential inefficiencies in the food production process where the largest losses of reactive N occur, and which could be targeted to reduce the amount of N released to the environment. We further review some on-going research activities and progress in Africa that compare different methods of managing resources that target resilience in food production and adaptation to climate change, using nutrient N as an indicator, while evaluating the effects of these resource management practices on ecosystems and the environment.

  4. Cassava; African perspective on space agriculture

    NASA Astrophysics Data System (ADS)

    Katayama, Naomi; Njemanze, Philip; Nweke, Felix; Space Agriculture Task Force, J.; Katayama, Naomi; Yamashita, Masamichi

    Looking on African perspective in space agriculture may contribute to increase diversity, and enforce robustness for advanced life support capability. Cassava, Manihot esculentaand, is one of major crop in Africa, and could be a candidate of space food materials. Since resource is limited for space agriculture in many aspects, crop yield should be high in efficiency, and robust as well. The efficiency is measured by farming space and time. Harvest yield of cassava is about 41 MJ/ m2 (70 ton/ha) after 11 months of farming. Among rice, wheat, potato, and sweet potato, cassava is ranked to the first place (40 m2 ) in terms of farming area required to supply energy of 5 MJ/day, which is recommended for one person. Production of cassava could be made under poor condition, such as acidic soil, shortage of fertilizer, draught. Laterite, similar to Martian regolith. Propagation made by stem cutting is an advantage of cassava in space agriculture avoiding entomophilous or anemophilous process to pollinate. Feature of crop storage capability is additional factor that determines the efficiency in the whole process of agriculture. Cassava root tuber can be left in soil until its consumption. Cassava might be an African contribution to space agriculture.

  5. Sickle cell disease: time for a targeted neonatal screening programme.

    PubMed

    Gibbons, C; Geoghegan, R; Conroy, H; Lippacott, S; O'Brien, D; Lynam, P; Langabeer, L; Cotter, M; Smith, O; McMahon, C

    2015-02-01

    Ireland has seen a steady increase in paediatric sickle cell disease (SCD). In 2005, only 25% of children with SCD were referred to the haemoglobinopathy service in their first year. A non-funded screening programme was implemented. This review aimed to assess the impact screening has had. All children referred to the haemoglobinopathy service born in Ireland after 2005 were identified. Data was collected from the medical chart and laboratory system. Information was analysed using Microsoft Excel. 77 children with SCD were identified. The median age at antibiotic commencement in the screened group was 56 days compared with 447 days in the unscreened group, p = < 0.0003. 22 (28%) of infants were born in centre's that do not screen and 17 (81%) were over 6 months old at referral, compared with 14 (21%) in the screened group. 6 (27%) of those in the unscreened group presented in acute crisis compared with 2 (3%) in the screened population. The point prevalence of SCD in Ireland is 0.2% in children under 15 yr of African and Asian descent. We identified delays in referral and treatment, which reflect the lack of government funded support and policy. We suggest all maternity units commence screening for newborns at risk of SCD. It is a cost effective intervention with a number needed to screen of just 4 to prevent a potentially fatal crisis.

  6. Use DCF to save energy

    SciTech Connect

    Doane, R.C.

    1982-07-01

    A profitability analysis can help the process engineer decide among various alternatives in an energy conservation project. This DCF (Discounted Cash Flow) program is written for the TI-59 programmable calculator.

  7. Designing a catheter skills training programme.

    PubMed

    Logan, Karen

    Karen Logan describes how a team of continence advisers designed and implemented a training programme that allows local nurses to meet the national occupational standards and competencies in catheterisation and catheter care.

  8. Establishing a national universal vaccination programme.

    PubMed

    Duma, R

    1995-01-01

    The collaborative efforts of healthcare providers, governmental policy and law makers and the public are often needed to provide the pressure necessary to establish a national universal vaccination programme. Key initiatives for those beginning to establish such a programme are the following: secure a scientific consensus or base of support; clarify relevance of the subject to all concerned; increase awareness of everyone (providers and consumers); recruit and involve influential people (angels) for support; seek out agendas within which to review the topic; generate cost-benefit data; encourage a consensus to be reached; identify legislative pathways to be used; convince politicians of the value of such a programme; request budgeting and funding; and, finally, follow up with surveillance studies to demonstrate the benefits of the programme.

  9. Managing nutritional programmes in developing countries.

    PubMed

    Sheikholeslam, R; Abdollahi, Z; Haghighi, F N

    2004-11-01

    Improving community nutrition in developing countries requires a detailed epidemiological picture of the prevalent nutritional problems in different regions and age groups. This makes it possible to identify priorities, sensitize policy-makers, establish political commitment and design appropriate community programmes for income generation and education for the best use of food resources. Experiences acquired from community-based nutritional programmes show that ownership of a programme by the community and using a tailor-made approach are essential factors in the successful implementation of programmes. A multifaceted approach is needed, involving a range of sectors-agriculture, commerce, education and health--and commitment at all levels from government to communities and individuals.

  10. Control programme for cystic echinococcosis in Uruguay.

    PubMed

    Irabedra, Pilar; Ferreira, Ciro; Sayes, Julio; Elola, Susana; Rodríguez, Miriam; Morel, Noelia; Segura, Sebastian; Santos, Estela Dos; Guisantes, Jorge A

    2016-05-24

    Cystic echinococcosis is a highly endemic parasitic zoonosis that is present in the Southern Cone countries of America. For several decades, various prevention and control programmes have been implemented in different countries and regions, with varying results. In Uruguay, a new control programme was implemented in 2006 that employed new strategies for canine diagnosis and treatment, dog population control, diagnosis in humans, epidemiological surveillance, and health education, including community participation. The control programme in Uruguay addresses the control and surveillance of the disease from a holistic perspective based on Primary Health Care, which has strengthened the community's participation in developing and coordinating activities in an interdisciplinary manner. Similarly, the control programme that is currently implemented is based on a risk-focused approach. The surveillance and control measures were focused on small villages and extremely poor urban areas. In this study, the strategies used and the results obtained from 2008-2013 are analysed and discussed.

  11. Review of field-programmable analog arrays

    NASA Astrophysics Data System (ADS)

    Gulak, Glen; D'Mello, Dean R.

    1996-10-01

    The drive towards shorter design cycles for analog integrated circuits has given impetus to several developments in the area of field-programmable analog arrays (FPAAs). Various approaches have been taken in implementing topological and parametric programmability of analog circuits. Recent extensions of this work have married FPAAs to their digital counterparts (FPGAs) along with data conversion interfaces, to form field-programmable mixed signal arrays (FPMAs). This survey paper reviews work to data in the area of programmable analog and mixed signal circuits. The body of work reviewed includes university and industrial research, commercial products and patents. A time-line of important achievements in the area is drawn and the status of various activities is summarized.

  12. Evaluation of a nurse leadership development programme.

    PubMed

    West, Margaret; Smithgall, Lisa; Rosler, Greta; Winn, Erin

    2016-03-01

    The challenge for nursing leaders responsible for workforce planning is to predict the knowledge, skills and abilities required to lead future healthcare delivery systems effectively. Succession planning requires a constant, competitive pool of qualified nursing leader candidates, and retention of those interested in career growth. Formal nursing leadership education in the United States is available through graduate education and professional nursing organisation programmes, such as the Emerging Nurse Leader Institute of the American Organization of Nurse Executives. However, there is also a need for local development programmes tailored to the needs of individual organisations. Leaders at Geisinger Health System, one of the largest rural health systems in the US, identified the need for an internal professional development scheme for nurses. In 2013 the Nurses Emerging as Leaders programme was developed to prepare nurse leaders for effective leadership and successful role transition. This article describes the programme and an evaluation of its effectiveness.

  13. Control programme for cystic echinococcosis in Uruguay

    PubMed Central

    Irabedra, Pilar; Ferreira, Ciro; Sayes, Julio; Elola, Susana; Rodríguez, Miriam; Morel, Noelia; Segura, Sebastian; dos Santos, Estela; Guisantes, Jorge A

    2016-01-01

    Cystic echinococcosis is a highly endemic parasitic zoonosis that is present in the Southern Cone countries of America. For several decades, various prevention and control programmes have been implemented in different countries and regions, with varying results. In Uruguay, a new control programme was implemented in 2006 that employed new strategies for canine diagnosis and treatment, dog population control, diagnosis in humans, epidemiological surveillance, and health education, including community participation. The control programme in Uruguay addresses the control and surveillance of the disease from a holistic perspective based on Primary Health Care, which has strengthened the community’s participation in developing and coordinating activities in an interdisciplinary manner. Similarly, the control programme that is currently implemented is based on a risk-focused approach. The surveillance and control measures were focused on small villages and extremely poor urban areas. In this study, the strategies used and the results obtained from 2008-2013 are analysed and discussed. PMID:27223652

  14. The UNESCO Bioethics Programme: a review.

    PubMed

    Langlois, Adéle

    2014-01-01

    UNESCO's Bioethics Programme was established in 1993. In twenty years it has adopted three international declarations, on the human genome (1997), human genetic data (2003) and bioethics (2005); produced reports on a wide range of bioethics issues; and developed capacity building and public education programmes in bioethics. Yet UNESCO has sometimes struggled to assert its authority in the wider bioethics world. Some bioethicists have criticized the 2005 declaration and suggested that the World Health Organization might be better placed to advance bioethics. In 2011, after four years of debate, UNESCO decided not to draft a convention on human reproductive cloning, because consensus on the issue proved impossible. This article reviews the standard setting and capacity building activities of the UNESCO Bioethics Programme. While the Programme faces challenges common to most intergovernmental organizations, its achievements in expanding international law and building bioethics capacity should not be underestimated.

  15. The Case for Programmable Calculators in Schools.

    ERIC Educational Resources Information Center

    Inglis, Norman J.

    1981-01-01

    Programmable calculators are useful tools in the classroom that are often overlooked. This report gives examples of problems and activities that can be brought within the scope of such calculators. (MP)

  16. ESO Fellowship Programme 2006/2007

    NASA Astrophysics Data System (ADS)

    2006-06-01

    ESO awards several postdoctoral fellow-ships each year. The goal of these fel-lowships is to offer young scientists op-portunities and facilities to enhance their research programmes at one of the world's foremost observatories.

  17. Plio-pleistocene African climate

    SciTech Connect

    deMenocal, P.B.

    1995-10-06

    Marine records of African climate variability document a shift toward more arid conditions after 2.8 million years ago (Ma), evidently resulting from remote forcing by cold North Atlantic sea-surface temperatures associated with the onset of Northern Hemisphere glacial cycles. African climate before 2.8 Ma was regulated by low-latitude insolation forcing of monsoonal climate due to Earth orbital precession. Major steps in the evolution of African hominids and other vertebrates are coincident with shifts to more arid, open conditions near 2.8 Ma, 1.7 Ma, and 1.0 Ma, suggesting that some Pliocene (Plio)-Pleistocene speciation events may have been climatically mediated. 65 refs., 6 figs.

  18. Plio-Pleistocene African Climate

    NASA Astrophysics Data System (ADS)

    Demenocal, Peter B.

    1995-10-01

    Marine records of African climate variability document a shift toward more arid conditions after 2.8 million years ago (Ma), evidently resulting from remote forcing by cold North Atlantic sea-surface temperatures associated with the onset of Northern Hemisphere glacial cycles. African climate before 2.8 Ma was regulated by low-latitude insolation forcing of monsoonal climate due to Earth orbital precession. Major steps in the evolution of African hominids and other vertebrates are coincident with shifts to more arid, open conditions near 2.8 Ma, 1.7 Ma, and 1.0 Ma, suggesting that some Pliocene (Plio)-Pleistocene speciation events may have been climatically mediated.

  19. African perceptions of female attractiveness.

    PubMed

    Coetzee, Vinet; Faerber, Stella J; Greeff, Jaco M; Lefevre, Carmen E; Re, Daniel E; Perrett, David I

    2012-01-01

    Little is known about mate choice preferences outside Western, educated, industrialised, rich and democratic societies, even though these Western populations may be particularly unrepresentative of human populations. To our knowledge, this is the first study to test which facial cues contribute to African perceptions of African female attractiveness and also the first study to test the combined role of facial adiposity, skin colour (lightness, yellowness and redness), skin homogeneity and youthfulness in the facial attractiveness preferences of any population. Results show that youthfulness, skin colour, skin homogeneity and facial adiposity significantly and independently predict attractiveness in female African faces. Younger, thinner women with a lighter, yellower skin colour and a more homogenous skin tone are considered more attractive. These findings provide a more global perspective on human mate choice and point to a universal role for these four facial cues in female facial attractiveness.

  20. The African Cultural Astronomy Project

    NASA Astrophysics Data System (ADS)

    Urama, Johnson O.; Holbrook, Jarita C.

    2011-06-01

    Indigenous, endogenous, traditional, or cultural astronomy focuses on the many ways that people and cultures interact with celestial bodies. In most parts of Africa, there is very little or no awareness about modern astronomy. However, like ancient people everywhere, Africans wondered at the sky and struggled to make sense of it. The African Cultural Astronomy Project aims to unearth the body of traditional knowledge of astronomy possessed by peoples of the different ethnic groups in Africa and to consider scientific interpretations when appropriate for cosmogonies and ancient astronomical practices. Regardless of scientific validity, every scientist can relate to the process of making observations and creating theoretical mechanisms for explaining what is observed. Through linking the traditional and the scientific, it is believed that this would be used to create awareness and interest in astronomy in most parts of Africa. This paper discusses the vision, challenges and prospects of the African Cultural Astronomy Project in her quest to popularize astronomy in Africa.

  1. Poxvirus in West African nonhuman primates: serological survey results*

    PubMed Central

    Breman, J. G.; Bernadou, J.; Nakano, J. H.

    1977-01-01

    Ten species of nonhuman primates in West African habitat were analysed for variolavaccinia subgroup haemagglutination-inhibition (HI) and neutralization antibodies. The animals were taken in 27 different sampling zones in parts of the Ivory Coast, Mali, and Upper Volta. Of the 195 tested, 15 (8%) had elevated HI antibodies after nonspecific reactions were reduced with potassium periodate pretreatment. Positive neutralization antibodies were found in 21% (44 of 206). Antibodies were detected in serum from monkeys living near two areas where monkeypox cases in humans had occurred. Four samples were tested for monkeypox specific antibodies using an indirect immunofluorescent test; 3 were positive. Despite the prevalence of poxvirus antibodies in monkeys (and other animals) in West Africa, smallpox eradication has been maintained in the area since 1970; thus, animal reservoirs of poxvirus appear to pose no threat to the worldwide smallpox eradication programme. PMID:201389

  2. Differences in skeletal microarchitecture and strength in African-American and white women.

    PubMed

    Putman, Melissa S; Yu, Elaine W; Lee, Hang; Neer, Robert M; Schindler, Elizabeth; Taylor, Alexander P; Cheston, Emily; Bouxsein, Mary L; Finkelstein, Joel S

    2013-10-01

    African-American women have a lower risk of fracture than white women, and this difference is only partially explained by differences in dual-energy X-ray absorptiometry (DXA) areal bone mineral density (aBMD). Little is known about racial differences in skeletal microarchitecture and the consequences for bone strength. To evaluate potential factors underlying this racial difference in fracture rates, we used high-resolution peripheral quantitative computed tomography (HR-pQCT) to assess cortical and trabecular bone microarchitecture and estimate bone strength using micro-finite element analysis (µFEA) in African-American (n = 100) and white (n = 173) women participating in the Study of Women's Health Across the Nation (SWAN). African-American women had larger and denser bones than whites, with greater total area, aBMD, and total volumetric BMD (vBMD) at the radius and tibia metaphysis (p < 0.05 for all). African-Americans had greater trabecular vBMD at the radius, but higher cortical vBMD at the tibia. Cortical microarchitecture tended to show the most pronounced racial differences, with higher cortical area, thickness, and volumes in African-Americans at both skeletal sites (p < 0.05 for all), and lower cortical porosity in African-Americans at the tibia (p < 0.05). African-American women also had greater estimated bone stiffness and failure load at both the radius and tibia. Differences in skeletal microarchitecture and estimated stiffness and failure load persisted even after adjustment for DXA aBMD. The densitometric and microarchitectural predictors of failure load at the radius and tibia were the same in African-American and white women. In conclusion, differences in bone microarchitecture and density contribute to greater estimated bone strength in African-Americans and probably explain, at least in part, the lower fracture risk of African-American women.

  3. Paramedir: A Tool for Programmable Performance Analysis

    NASA Technical Reports Server (NTRS)

    Jost, Gabriele; Labarta, Jesus; Gimenez, Judit

    2004-01-01

    Performance analysis of parallel scientific applications is time consuming and requires great expertise in areas such as programming paradigms, system software, and computer hardware architectures. In this paper we describe a tool that facilitates the programmability of performance metric calculations thereby allowing the automation of the analysis and reducing the application development time. We demonstrate how the system can be used to capture knowledge and intuition acquired by advanced parallel programmers in order to be transferred to novice users.

  4. Firmware Modification Analysis in Programmable Logic Controllers

    DTIC Science & Technology

    2014-03-27

    MODIFICATION ANALYSIS IN PROGRAMMABLE LOGIC CONTROLLERS Arturo M. Garcia Jr., B.S.S.E.C.A. Captain, USA Approved: //signed// Robert F. Mills , PhD...Matthew 5:37 v Acknowledgments My sincere gratitude to my committee for their guidance and teamwork which made this thesis possible. Dr. Mills ...2012. 2012. [5] Bolton, William. Programmable logic controllers. Newnes, 2009. [6] Boyer, Stuart . SCADA: Supervisory Control and Data Aquisition 4th

  5. Towards a Norm in South African Englishes.

    ERIC Educational Resources Information Center

    van der Walt, Johann L.; van Rooy, Bertus

    2002-01-01

    Investigates the perception and application of the norm in South African English with specific reference to Black South African English. Hypothesizes that South African English is in the hibernation and expansion phase. Three sets of data are presented and analyzed. (Author/VWL)

  6. African American Teaching and the Matriarchal Performance.

    ERIC Educational Resources Information Center

    Jeffries, Rhonda Baynes

    This paper discusses the role of matriarchs in African-American culture, explaining that traditionally, African-American matriarchs arise from a combination of African norms and American social positions that naturally forces them to assume leadership conditions. The roles these women assume are a response to the desire to survive in a society…

  7. Freedom Road: Adult Education of African Americans.

    ERIC Educational Resources Information Center

    Peterson, Elizabeth A., Ed.

    This book contains six chapters by various authors about the history of African Americans' contributions and participation in adult education. The book reports on how some African American leaders saw the connection between education and the eventual freedom or uplift of the African American people. Following a foreword (Phyllis M. Cunningham) and…

  8. Engaging African Americans in Smoking Cessation Programs

    ERIC Educational Resources Information Center

    Wallen, Jacqueline; Randolph, Suzanne; Carter-Pokras, Olivia; Feldman, Robert; Kanamori-Nishimura, Mariano

    2014-01-01

    Background: African Americans are disproportionately exposed to and targeted by prosmoking advertisements, particularly menthol cigarette ads. Though African Americans begin smoking later than whites, they are less likely to quit smoking than whites. Purpose: This study was designed to explore African American smoking cessation attitudes,…

  9. Increasing Reading Engagement in African American Boys

    ERIC Educational Resources Information Center

    Husband, Terry

    2014-01-01

    Much has been written concerning the challenges many teachers face in engaging African American males in reading practices. While much of this extant scholarship focuses on African American males at the pre-adolescent stage of development and beyond, little has been written regarding increasing reading engagement in African American boys in P-5…

  10. African Expressions in Hispano-American Literature.

    ERIC Educational Resources Information Center

    Coleman, Ben C.

    This revised version of a lecture on the relationship of African language and Hispano-American literature illustrates the historical influence of the African slave on representative literature and modern culture of the Caribbean Islands. Introductory remarks focus on the migratory patterns of the African slaves. The concept of negritude is then…

  11. An Introduction to West African Literature.

    ERIC Educational Resources Information Center

    Taiwo, Oladele

    Intended to provide help for those interested in studying West African literature, this book is divided into three parts. Part One provides background information: the various African oral traditions are discussed, related to the way of life of the people, and examined for the extent to which they form the basis of present West African literary…

  12. Empowering African genomics for infectious disease control.

    PubMed

    Folarin, Onikepe A; Happi, Anise N; Happi, Christian T

    2014-11-07

    At present, African scientists can only participate minimally in the genomics revolution that is transforming the understanding, surveillance and clinical treatment of infectious diseases. We discuss new initiatives to equip African scientists with knowledge of cutting-edge genomics tools, and build a sustainable critical mass of well-trained African infectious diseases genomics scientists.

  13. Recoverable and Programmable Collapse from Folding Pressurized Origami Cellular Solids.

    PubMed

    Li, S; Fang, H; Wang, K W

    2016-09-09

    We report a unique collapse mechanism by exploiting the negative stiffness observed in the folding of an origami solid, which consists of pressurized cells made by stacking origami sheets. Such a collapse mechanism is recoverable, since it only involves rigid folding of the origami sheets and it is programmable by pressure control and the custom design of the crease pattern. The collapse mechanism features many attractive characteristics for applications such as energy absorption. The reported results also suggest a new branch of origami study focused on its nonlinear mechanics associated with folding.

  14. Recoverable and Programmable Collapse from Folding Pressurized Origami Cellular Solids

    NASA Astrophysics Data System (ADS)

    Li, S.; Fang, H.; Wang, K. W.

    2016-09-01

    We report a unique collapse mechanism by exploiting the negative stiffness observed in the folding of an origami solid, which consists of pressurized cells made by stacking origami sheets. Such a collapse mechanism is recoverable, since it only involves rigid folding of the origami sheets and it is programmable by pressure control and the custom design of the crease pattern. The collapse mechanism features many attractive characteristics for applications such as energy absorption. The reported results also suggest a new branch of origami study focused on its nonlinear mechanics associated with folding.

  15. Heart failure in African Americans.

    PubMed

    Yancy, Clyde W

    2005-10-10

    The demographics of the United States are changing, and in the next few decades there will no longer be a racial/ethnic majority population. Increased awareness of cardiovascular disease (CVD) in special populations is warranted as these populations increase. Heart failure carries a substantial burden on those affected, particularly African Americans, who have a disproportionate burden of heart disease. Current treatments for heart failure include angiotensin-converting enzyme inhibitors, beta-blockers, angiotensin II-receptor antagonists, and vasodilating agents. This review discusses the unique characteristics of CVD in African Americans and addresses the need for targeted treatments to reduce the excess burden found in this population.

  16. Roadmaps for the Highway: The Evaluation of an Information Literacy Training Programme for South African Students.

    ERIC Educational Resources Information Center

    de Jager, Karin; Nassimbeni, Mary

    1998-01-01

    Discusses the lack of knowledge that students from disadvantaged educational systems have regarding information technologies and information sources, and describes a course developed at the School of Librarianship at the University of Cape Town (South Africa) for undergraduates that provides students with transferable learning and information…

  17. Maximizing Benefit Transfers to the Poor: Evidence from South African Employment Programmes.

    ERIC Educational Resources Information Center

    Haddad, Lawrence; Adato, Michelle

    2002-01-01

    Analysis of 101 projects in 7 public works programs (PWPs) in Western Cape Province in the mid-1990s estimated the public expenditure needed to transfer resources to the poor. Comparison of the result with that generated by a hypothetical, untargeted transfer showed that most of the PWPs outperform the benchmarks. (Contains 26 references.) (JOW)

  18. Participating in an International Master's Programme: Impact on Agency for African In-Service Teachers

    ERIC Educational Resources Information Center

    Impedovo, Maria Antonietta; Ligorio, Maria Beatrice

    2016-01-01

    This paper investigates teachers' agency in relation to their professional development. In particular, we refer to research skills and attitude in-service teachers may acquire while attending an international master of research in education. A semi-structured interview was administrated to nine in-service teachers, coming from three different…

  19. Informationist programme in support of biomedical research: a programme description and preliminary findings of an evaluation

    PubMed Central

    Whitmore, Susan C.; Grefsheim, Suzanne F.; Rankin, Jocelyn A.

    2008-01-01

    Background The informationist programme at the Library of the National Institutes of Health (NIH) in Bethesda, MD, USA has grown to 14 informationists working with 40 clinical and basic science research teams. Purpose This case report, intended to contribute to the literature on informationist programmes, describes the NIH informationist programme including implementation experiences, the informationists' training programme, their job responsibilities and programme outcomes. Brief description The NIH informationist programme was designed to enhance the library's service capacity. Over time, the steps for introducing the service to new groups were formalized to ensure support by leadership, the team being served and the library. Job responsibilities also evolved from traditional library roles to a wide range of knowledge management activities. The commitment by the informationist, the team and the library to continuous learning is critical to the programme's success. Results/outcomes NIH scientists reported that informationists saved them time and contributed to teamwork with expert searching and point-of-need instruction. Process evaluation helped refine the programme. Evaluation method High-level, preliminary outcomes were identified from a survey of scientists receiving informationist services, along with key informant interviews. Process evaluation examined service implementation, informationists' training, and service components. Anecdotal evidence has also indicated a favorable response to the programme. PMID:18494648

  20. Cassava: constraints to production and the transfer of biotechnology to African laboratories.

    PubMed

    Bull, Simon E; Ndunguru, Joseph; Gruissem, Wilhelm; Beeching, John R; Vanderschuren, Hervé

    2011-05-01

    Knowledge and technology transfer to African institutes is an important objective to help achieve the United Nations Millennium Development Goals. Plant biotechnology in particular enables innovative advances in agriculture and industry, offering new prospects to promote the integration and dissemination of improved crops and their derivatives from developing countries into local markets and the global economy. There is also the need to broaden our knowledge and understanding of cassava as a staple food crop. Cassava (Manihot esculenta Crantz) is a vital source of calories for approximately 500 million people living in developing countries. Unfortunately, it is subject to numerous biotic and abiotic stresses that impact on production, consumption, marketability and also local and country economics. To date, improvements to cassava have been led via conventional plant breeding programmes, but with advances in molecular-assisted breeding and plant biotechnology new tools are being developed to hasten the generation of improved farmer-preferred cultivars. In this review, we report on the current constraints to cassava production and knowledge acquisition in Africa, including a case study discussing the opportunities and challenges of a technology transfer programme established between the Mikocheni Agricultural Research Institute in Tanzania and Europe-based researchers. The establishment of cassava biotechnology platform(s) should promote research capabilities in African institutions and allow scientists autonomy to adapt cassava to suit local agro-ecosystems, ultimately serving to develop a sustainable biotechnology infrastructure in African countries.

  1. GEF small grants programme - overview

    SciTech Connect

    1997-12-01

    This paper describes the GEF small grants program which seeks to enhance the role of households and communities in conserving global biodiversity, mitigating global climate change, and protecting international waters. Grants up to $50k have been granted for projects in 33 countries, with plans for 12 other countries. The author describes the framework that the program works under, and the methodology followed in developing and planning projects. The approach to climate change concerns is to emphasize the development of non-carbon energy development activities to provide energy sources and economic development.

  2. Engagement and outcomes for a computerised cognitive–behavioural therapy intervention for anxiety and depression in African Americans

    PubMed Central

    Gibbs, Patrice; Belnap, Bea Herbeck; Karp, Jordan F.; Abebe, Kaleab K.; Rollman, Bruce L.

    2017-01-01

    Background Computerised cognitive–behavioural therapy (CCBT) helps improve mental health outcomes in White populations. However, no studies have examined whether CCBT is acceptable and beneficial for African Americans. Aims We studied differences in CCBT use and self-reported change in depression and anxiety symptoms among 91 African Americans and 499 White primary care patients aged 18–75, enrolled in a randomised clinical trial of collaborative care embedded with an online treatment for depression and anxiety. Method Patients with moderate levels of mood and/or anxiety symptoms (PHQ-9 or GAD-7≥10) were randomised to receive either care-manager-guided access to the proven-effective Beating the Blues® CCBT programme or usual care from their primary care doctor. Results Compared with White participants, African Americans were less likely to start the CCBT programme (P=0.01), and those who did completed fewer sessions and were less likely to complete the full programme (P=0.03). Despite lower engagement, however, African Americans who started the CCBT programme experienced a greater decrease in self-reported depressive symptoms (estimated 8-session change: −6.6 v. −5.5; P=0.06) and similar decrease in anxiety symptoms (−5.3 v. −5.6; P=0.80) compared with White participants. Conclusions CCBT may be an efficient and scalable first-step to improving minority mental health and reducing disparities in access to evidence-based healthcare. Declaration of interest None. Copyright and usage © The Royal College of Psychiatrists 2017. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) license. PMID:28058109

  3. The Role of the African Union in African Peacekeeping Operations

    DTIC Science & Technology

    2008-03-26

    Government in Sirte , Libya, on 9 September 1999. The AU was formed to address some of the issues identified during the analysis of the OAU PKOs. The...Establishment of the African Union The Sirte Declaration led to the establishment of the AU in 2002. One of the AU’s objectives was to enhance the security

  4. Evaluating community-based medical education programmes in Africa: A workshop report

    PubMed Central

    Bailey, Rebecca J; Baingana, Rhona K; Couper, Ian D; Deery, Christopher B; Nestel, Debra; Ross, Heather; Sagay, Atiene Solomon; Talib, Zohray M

    2015-01-01

    Background The Medical Education Partnership Initiative (MEPI) supports medical schools in Africa to increase the capacity and quality of medical education, improve retention of graduates, and promote regionally relevant research. Many MEPI programmes include elements of community-based education (CBE) such as: community placements; clinical rotations in underserved locations, community medicine, or primary health; situational analyses; or student-led research. Methods CapacityPlus and the MEPI Coordinating Center conducted a workshop to share good practices for CBE evaluation, identify approaches that can be used for CBE evaluation in the African context, and strengthen a network of CBE collaborators. Expected outcomes of the workshop included draft evaluation plans for each school and plans for continued collaboration among participants. The workshop focused on approaches and resources for evaluation, guiding exploration of programme evaluation including data collection, sampling, analysis, and reporting. Participants developed logic models capturing inputs, activities, outputs, and expected outcomes of their programmes, and used these models to inform development of evaluation plans. This report describes key insights from the workshop, and highlights plans for CBE evaluation among the MEPI institutions. Results Each school left the workshop with a draft evaluation plan. Participants agreed to maintain communication and identified concrete areas for collaboration moving forward. Since the workshop’s conclusion, nine schools have agreed on next steps for the evaluation process and will begin implementation of their plans. Conclusion This workshop clearly demonstrated the widespread interest in improving CBE evaluation efforts and a need to develop, implement, and disseminate rigorous approaches and tools relevant to the African context. PMID:26523230

  5. Control and surveillance of human African trypanosomiasis.

    PubMed

    2013-01-01

    In the 1960s, it appeared that human African trypanosomiasis (HAT) could be effectively controlled, but by the beginning of the twenty-first century several decades of neglect had led to alarming numbers of reported new cases, with an estimated 300 000 people infected. The World Health Organization (WHO) responded with a series of initiatives aimed at bringing HAT under control again. Since 2001, the pharmaceutical companies that produce drugs for HAT have committed themselves to providing them free of charge to WHO for distribution for the treatment of patients. In addition, funds have been provided to WHO to support national sleeping sickness control programmes to boost control and surveillance of the disease. That, coupled with bilateral cooperation and the work of nongovernmental organizations, helped reverse the upward trend in HAT prevalence. By 2012, the number of reported cases was fewer than 8000. This success in bringing HAT under control led to its inclusion in the WHO Roadmap for eradication, elimination and control of neglected tropical diseases, with a target set to eliminate the disease as a public health problem by 2020. A further target has been set, by countries in which HAT is endemic, to eliminate gambiense HAT by reducing the incidence of infection to zero in a defined geographical area. This report provides information about new diagnostic approaches, new therapeutic regimens and better understanding of the distribution of the disease with high-quality mapping. The roles of human and animal reservoirs and the tsetse fly vectors that transmit the parasites are emphasized. The new information has formed the basis for an integrated strategy with which it is hoped that elimination of gambiense HAT will be achieved. The report also contains recommendations on the approaches that will lead to elimination of the disease.

  6. African-American spirituality: a concept analysis.

    PubMed

    Newlin, Kelley; Knafl, Kathleen; Melkus, Gail D'Eramo

    2002-12-01

    Culturally competent care for African Americans requires sensitivity to spirituality as a component of the cultural context. To foster understanding, measurement, and delivery of the spiritual component of culturally competent care, this article presents an evolutionary concept analysis of African-American spirituality. The analysis is based on a sample of multidisciplinary research studies reflecting spirituality of African Americans. Findings indicate that African-American spirituality involves quintessential, internal, external, consoling, and transformative attributive dimensions. Findings are considered in relation to previous conceptual analyses of spirituality and suggest that defining attributes of African-American spirituality are both global and culturally prominent. Implications for practice and research are discussed.

  7. Attention HIV: older African American women define sexual risk.

    PubMed

    McCord, Laneshia R

    2014-01-01

    Understanding sexual-risk behaviours as defined by a culture presents new challenges for human service professionals. Older African American women constitute the fastest growing group of new cases of HIV in the USA. With heterosexual sex as the primary mode of transmission among this group, there exist minimal programmes that are culture and age-specific in terms of primary and secondary prevention. In an attempt to address this gap in knowledge, this study examined how a group of older African American women defined sexual-risk behaviour. A focus group was conducted with seven women age 45 and older, who were recruited from a community centre. This paper examines the way that sexual-risk behaviour was defined through thematic analysis and conceptualises the locus of sexual risk behaviour as defined by the participants. The major theme of the study was social prescription, how to behave sexually as an ageing adult. Underlying ideas that arose were that unprotected sex occurred out of habit, that impulsivity was associated with risky sex and that older women needed to be aware of warning signs and behaviours of potential mates. Micro- and macro-level implications for human service professionals are discussed.

  8. African media coverage of tobacco industry corporate social responsibility initiatives.

    PubMed

    McDaniel, Patricia A; Cadman, Brie; Malone, Ruth E

    2016-03-07

    Guidelines for implementing the World Health Organization's Framework Convention on Tobacco Control (FCTC) recommend prohibiting tobacco industry corporate social responsibility (CSR) initiatives, but few African countries have done so. We examined African media coverage of tobacco industry CSR initiatives to understand whether and how such initiatives were presented to the public and policymakers. We searched two online media databases (Lexis Nexis and Access World News) for all news items published from 1998 to 2013, coding retrieved items through a collaborative, iterative process. We analysed the volume, type, provenance, slant and content of coverage, including the presence of tobacco control or tobacco interest themes. We found 288 news items; most were news stories published in print newspapers. The majority of news stories relied solely on tobacco industry representatives as news sources, and portrayed tobacco industry CSR positively. When public health voices and tobacco control themes were included, news items were less likely to have a positive slant. This suggests that there is a foundation on which to build media advocacy efforts. Drawing links between implementing the FCTC and prohibiting or curtailing tobacco industry CSR programmes may result in more public dialogue in the media about the negative impacts of tobacco company CSR initiatives.

  9. Literacy development of English language learners: the outcomes of an intervention programme in grade R.

    PubMed

    Olivier, Anna-Mari; Anthonissen, Christine; Southwood, Frenette

    2010-12-01

    This study aims to contribute to the knowledge base on the status and development of emergent literacy skills of learners receiving formal education in their second or additional language. The focus is on young English language learners (ELLs), i.e. learners whose home language is not English but who have English as their language of teaching and learning. This article reports on a study that investigated ELLs' emergent literacy skills prior to entering grade 1 and then evaluated the effectiveness of an evidence-based stimulation programme on early literacy skills in the South African context. Using a quasi-experimental design, ELLs' emergent literacy skills were assessed with an adapted version of 8 of the subtests of the Emergent Literacy Assessment battery (Willenberg, 2004) and were compared to those of English first language (L1) and of ELL control groups, both before and after the 8-week purpose-designed programme. While learners showed significant improvement on 6 of the 8 subtests, the programme did not significantly improve ELLs' skills in comparison to those of the control groups. Possible independent variables contributing to the dearth of intervention effect include socio-economic status, learners' L1, and teacher- and classroom-specific characteristics, all of which were considered in this study. Clinical implications for speech-language therapists with regard to assessment, intervention, service delivery and outcome measures are highlighted.

  10. Cryptococcal meningitis in African children.

    PubMed

    Subramanyam, V R; Mtitimila, E; Hart, C A; Broadhead, R L

    1997-06-01

    Three cases of cryptococcal meningitis in Malawian children aged 6 weeks, 3 years and 9 years are described. Only 23 cases of cryptococcal meningitis in children have been described previously, but in children from Europe and the USA. These are therefore the first cases of cryptococcosis to be described in African children.

  11. Wellness among African American Counselors

    ERIC Educational Resources Information Center

    Day-Vines, Norma L.; Holcomb-McCoy, Cheryl

    2007-01-01

    Although there are various definitions of wellness, few conceptual definitions have addressed the contextual dimensions of wellness relative to African American counselors. The authors present an overview of generic models of wellness, discuss factors that both inhibit and promote wellness, offer some culture-specific models of wellness, and…

  12. African American Men in College

    ERIC Educational Resources Information Center

    Cuyjet, Michael J., Ed.

    2006-01-01

    This book is a much-needed resource that includes examples of real-world programs and activities to enhance academic success in the college environment for African American men. The examples are collected from a variety of institutions across the country. With contributions from leading practitioners and scholars in the field, this book explores…

  13. Improvisation in West African Musics.

    ERIC Educational Resources Information Center

    Locke, David

    1980-01-01

    Discussed is music of the sub-Sahara. Vocal, instrumental, and dance drumming from the Sudan Desert, the North Coast, East Horn, Central and West Africa, and contrapuntal yodeling of Pygmies is described. For African musicians, the ability to improvise, and creativity, are gifts from God. Includes selected readings and recordings. (KC)

  14. The UK geothermal hot dry rock R&D programme

    SciTech Connect

    MacDonald, Paul; Stedman, Ann; Symons, Geoff

    1992-01-01

    The UK hot dry rock research and development programme is funded by the Department of Energy and aims to demonstrate the feasibility of commercial exploitation of HDR in the UK. The philosophy of the UK programme has been to proceed to a full-scale prototype HDR power station via a number of stages: Phase 1--Experiments at shallow depth (300 m) to assess the feasibility of enhancing the permeability of the rock. Phase 2--Studies at intermediate depth (2500 m) to determine the feasibility of creating a viable HDR subsurface heat exchanger. Phase 3--Establishment of an HDR prototype at commercial depth. The programme has run over a 15 year period, and has been formally reviewed at stages throughout its progress. The 1987 review towards the end of Phase 2 identified a number of technical objectives for continuing research and proposed that the initial design stage of the deep HDR prototype should start. Phase 3A is now complete. It addressed: the feasibility of creating an underground HDR heat exchanger suitable for commercial operation; techniques for improving hydraulic performance and correcting short circuits in HDR systems; modeling of the performance, resource size and economic aspects of HDR systems. The work has been conducted by a number of contractors, including Cambome School of Mines, Sunderland and Sheffield City Polytechnics and RTZ Consultants Limited. This paper focuses upon the experimental work at Rosemanowes in Cornwall and the recently completed conceptual design of a prototype HDR power station. The economics of HDR-generated electricity are also discussed and the conclusions of a 1990 program review are presented. Details of the HDR program to 1994, as announced by the UK Department of Energy in February 1991, are included.

  15. Advocating for efforts to protect African children, families, and communities from the threat of infectious diseases: report of the First International African Vaccinology Conference.

    PubMed

    Wiysonge, Charles Shey; Waggie, Zainab; Hawkridge, Anthony; Schoub, Barry; Madhi, Shabir Ahmed; Rees, Helen; Hussey, Gregory

    2016-01-01

    One means of improving healthcare workers' knowledge of and attitudes to vaccines is through running vaccine conferences which are accessible, affordable, and relevant to their everyday work. Various vaccinology conferences are held each year worldwide. These meetings focus heavily on basic science with much discussion about new developments in vaccines, and relatively little coverage of policy, advocacy, and communication issues. A negligible proportion of delegates at these conferences come from Africa, home to almost 40% of the global burden of vaccine-preventable diseases. To the best of our knowledge, no major vaccinology conference has ever been held on the African continent apart from World Health Organization (WHO) meetings. The content of the first International African Vaccinology Conference was planned to be different; to focus on the science, with a major part of discussions being on clinical, programmatic, policy, and advocacy issues. The conference was held in Cape Town, South Africa, from 8 to 11 November 2012. The theme of the conference was "Advocating for efforts to protect African children, families, and communities from the threat of infectious diseases". There were more than 550 registered participants from 55 countries (including 37 African countries). There were nine pre-conference workshops, ten plenary sessions, and 150 oral and poster presentations. The conference discussed the challenges to universal immunisation in Africa as well as the promotion of dialogue and communication on immunisation among all stakeholders. There was general acknowledgment that giant strides have been made in Africa since the global launch of the Expanded Programme on Immunisation in 1974. For example, there has been significant progress in introducing new and under-utilised vaccines; including hepatitis B, Haemophilus influenza type b, pneumococcal conjugate, rotavirus, meningococcal A conjugate, and human papillomavirus vaccines. In May 2012, African countries

  16. Advocating for efforts to protect African children, families, and communities from the threat of infectious diseases: report of the First International African Vaccinology Conference

    PubMed Central

    Wiysonge, Charles Shey; Waggie, Zainab; Hawkridge, Anthony; Schoub, Barry; Madhi, Shabir Ahmed; Rees, Helen; Hussey, Gregory

    2016-01-01

    One means of improving healthcare workers’ knowledge of and attitudes to vaccines is through running vaccine conferences which are accessible, affordable, and relevant to their everyday work. Various vaccinology conferences are held each year worldwide. These meetings focus heavily on basic science with much discussion about new developments in vaccines, and relatively little coverage of policy, advocacy, and communication issues. A negligible proportion of delegates at these conferences come from Africa, home to almost 40% of the global burden of vaccine-preventable diseases. To the best of our knowledge, no major vaccinology conference has ever been held on the African continent apart from World Health Organization (WHO) meetings. The content of the first International African Vaccinology Conference was planned to be different; to focus on the science, with a major part of discussions being on clinical, programmatic, policy, and advocacy issues. The conference was held in Cape Town, South Africa, from 8 to 11 November 2012. The theme of the conference was “Advocating for efforts to protect African children, families, and communities from the threat of infectious diseases”. There were more than 550 registered participants from 55 countries (including 37 African countries). There were nine pre-conference workshops, ten plenary sessions, and 150 oral and poster presentations. The conference discussed the challenges to universal immunisation in Africa as well as the promotion of dialogue and communication on immunisation among all stakeholders. There was general acknowledgment that giant strides have been made in Africa since the global launch of the Expanded Programme on Immunisation in 1974. For example, there has been significant progress in introducing new and under-utilised vaccines; including hepatitis B, Haemophilus influenza type b, pneumococcal conjugate, rotavirus, meningococcal A conjugate, and human papillomavirus vaccines. In May 2012, African

  17. Developing anatomical terms in an African language.

    PubMed

    Madzimbamuto, Farai Daniel

    2012-02-23

    Clinical and technical information imparted in most African languages involves inexact terminology and code switching, so it lacks the explanatory power characterised by the English language. African languages are absent in the tertiary science education environment and forums where African scientists could present scientific material in the medium of African languages. This limits the development of African languages in the scientific domain. There has recently been a trend in several African languages to develop and intellectualise them, especially in the field of medical sciences. The ChiShona language is used to explore the ability of an African language to develop new terminology, to name the vertebral skeleton and describe it scientifically. It uses word compounding to demonstrate terminology development. ChiShona has similarities with several hundred other Bantu languages in East, Central and Southern Africa. Advancing this language can promote similar developments in others, making them more explanatory for the lay public and health professionals.

  18. RHIC and its upgrade programmes.

    SciTech Connect

    Roser,T.

    2008-06-23

    As the first hadron accelerator and collider consisting of two independent superconducting rings RHIC has operated with a wide range of beam energies and particle species. After a brief review of the achieved performance the presentation will give an overview of the plans, challenges and status of machine upgrades, that range from a new heavy ion pre-injector and beam cooling at 100 GeV to a high luminosity electron-ion collider.

  19. Meeting Teacher Expectations in a DL Professional Development Programme--A Case Study for Sustained Applied Competence as Programme Outcome

    ERIC Educational Resources Information Center

    Kruger, Cornè Gerda; Van Rensburg, Ona Janse; De Witt, Marike W.

    2016-01-01

    Meeting teacher expectations for a professional development programme (PDP) is expected to strengthen sustainable applied competence as programme outcome since teachers will be more motivated to apply the programme content in practice. A revised distance learning (DL) programme was augmented by a practical component comprising a work-integrated…

  20. The MISTRALS programme data portal

    NASA Astrophysics Data System (ADS)

    Fleury, Laurence; Brissebrat, Guillaume; Belmahfoud, Nizar; Boichard, Jean-Luc; Brosolo, Laetitia; Cloché, Sophie; Descloitres, Jacques; Ferré, Hélène; Focsa, Loredana; Labatut, Laurent; Mastrorillo, Laurence; Mière, Arnaud; Petit de la Villéon, Loïc; Ramage, Karim; Schmechtig, Catherine

    2014-05-01

    Mediterranean Integrated STudies at Regional And Local Scales (MISTRALS) is a decennial programme for systematic observations and research dedicated to the understanding of the Mediterranean Basin environmental process and its evolution under the planet global change. It is composed of eight multidisciplinary projects that cover all the components of the Earth system (atmosphere, ocean, continental surfaces, lithosphere...) and their interactions, many disciplines (physics, chemistry, marine biogeochemistry, biology, geology, sociology...) and different time scales. For example Hydrological cycle in the Mediterranean eXperiment (HyMeX) aims at improving the predictability of rainfall extreme events, and assessing the social and economic vulnerability to extreme events and adaptation capacity, and Paleo Mediterranean Experiment (PaleoMeX) is dedicated to the study of the interactions between climate, societies and civilizations of the Mediterranean world during the last 10000 years. Many long term monitoring research networks are associated with MISTRALS, like Mediterranean Ocean Observing System on Environment (MOOSE), Centre d'Observation Régional pour la Surveillance du Climat et de l'environnement Atmosphérique et océanographique en Méditerranée occidentale (CORSICA) and the environmental observations from Mediterranean Eurocentre for Underwater Sciences and Technologies (MEUST-SE). Therefore, the data generated or used by the different MISTRALS projects are very heterogeneous. They include in situ observations, satellite products, model outputs, qualitative field surveys... Some datasets are automatically produced by operational networks, and others come from research instruments and analysis procedures. They correspond to different time scales (historical time series, observatories, campaigns...) and are managed by different data centres. They originate from many scientific communities, with varied data sharing cultures, specific expectations, and using

  1. The MISTRALS programme data portal

    NASA Astrophysics Data System (ADS)

    Fleury, Laurence; Brissebrat, Guillaume; Belmahfoud, Nizar; Boichard, Jean-Luc; Brosolo, Laetitia; Cloché, Sophie; Descloitres, Jacques; Ferré, Hélène; Focsa, Loredana; Henriot, Nicolas; Labatut, Laurent; Mière, Arnaud; Petit de la Villéon, Loïc; Ramage, Karim; Schmechtig, Catherine; Vermeulen, Anne; André, François

    2015-04-01

    Mediterranean Integrated STudies at Regional And Local Scales (MISTRALS) is a decennial programme for systematic observations and research dedicated to the understanding of the Mediterranean Basin environmental process and its evolution under the planet global change. It is composed of eight multidisciplinary projects that cover all the components of the Earth system (atmosphere, ocean, continental surfaces, lithosphere...) and their interactions, all the disciplines (physics, chemistry, marine biogeochemistry, biology, geology, sociology...) and different time scales. For example Hydrological cycle in the Mediterranean eXperiment (HyMeX) aims at improving the predictability of rainfall extreme events, and assessing the social and economic vulnerability to extreme events and adaptation capacity. Paleo Mediterranean Experiment (PaleoMeX) is dedicated to the study of the interactions between climate, societies and civilizations of the Mediterranean world during the last 10000 years. Many long term monitoring research networks are associated with MISTRALS, such as Mediterranean Ocean Observing System on Environment (MOOSE), Centre d'Observation Régional pour la Surveillance du Climat et de l'environnement Atmosphérique et océanographique en Méditerranée occidentale (CORSICA) and the environmental observations from Mediterranean Eurocentre for Underwater Sciences and Technologies (MEUST-SE). Therefore, the data generated or used by the different MISTRALS projects are very heterogeneous. They include in situ observations, satellite products, model outputs, social sciences surveys... Some datasets are automatically produced by operational networks, and others come from research instruments and analysis procedures. They correspond to different time scales (historical time series, observatories, campaigns...) and are managed by several data centres. They originate from many scientific communities, with different data sharing practices, specific expectations and using

  2. The MISTRALS programme data portal

    NASA Astrophysics Data System (ADS)

    Brissebrat, Guillaume; Albert-Aguilar, Alexandre; Belmahfoud, Nizar; Cloché, Sophie; Darras, Sabine; Descloitres, Jacques; Ferré, Hélène; Fleury, Laurence; Focsa, Loredana; Henriot, Nicolas; Labatut, Laurent; Petit de la Villéon, Loïc; Ramage, Karim; Schmechtig, Catherine; Vermeulen, Anne

    2016-04-01

    Mediterranean Integrated STudies at Regional And Local Scales (MISTRALS) is a decennial programme for systematic observations and research dedicated to the understanding of the Mediterranean Basin environmental process and its evolution under the planet global change. It is composed of eight multidisciplinary projects that cover all the components of the Earth system (atmosphere, ocean, continental surfaces, lithosphere...) and their interactions, all the disciplines (physics, chemistry, marine biogeochemistry, biology, geology, sociology...) and different time scales. For example Hydrological cycle in the Mediterranean eXperiment (HyMeX) aims at improving the predictability of rainfall extreme events, and assessing the social and economic vulnerability to extreme events and adaptation capacity. Paleo Mediterranean Experiment (PaleoMeX) is dedicated to the study of the interactions between climate, societies and civilizations of the Mediterranean world during the last 10000 years. Many long term monitoring research networks are associated with MISTRALS, such as Mediterranean Ocean Observing System on Environment (MOOSE), Centre d'Observation Régional pour la Surveillance du Climat et de l'environnement Atmosphérique et océanographique en Méditerranée occidentale (CORSICA) and the environmental observations from Mediterranean Eurocentre for Underwater Sciences and Technologies (MEUST-SE). Therefore, the data generated or used by the different MISTRALS projects are very heterogeneous. They include in situ observations, satellite products, model outputs, social sciences surveys... Some datasets are automatically produced by operational networks, and others come from research instruments and analysis procedures. They correspond to different time scales (historical time series, observatories, campaigns...) and are managed by several data centres. They originate from many scientific communities, with different data sharing practices, specific expectations and using

  3. Evaluation of national malaria control programmes in Africa.

    PubMed Central

    Bryce, J.; Roungou, J. B.; Nguyen-Dinh, P.; Naimoli, J. F.; Breman, J. G.

    1994-01-01

    Evaluation is an essential management tool for the improvement of public health programmes or projects. As malaria morbidity and mortality continue to increase in most countries in Africa, international agencies and malaria control programme managers have identified the strengthening of programme evaluation as an important strategy for improving the efficiency and effectiveness of malaria control programmes. Managers can develop an evaluation strategy only after they have defined programme objectives and planned specific programme activities. Indicators should be directly related to programme objectives and should be selected on the basis of the following criteria: their validity; reliability; ability to detect change within a reasonable time period and as a result of successful programme implementation; ability to be interpreted; and usefulness in guiding programme change. Only those indicators that can be measured with available programme resources should be selected. Managers will also need to identify the sources of indicator data and to determine how often each indicator will be measured. Programme managers should develop criteria or indicators for the following: programme policies and plans; the process of programme implementation; the outcomes of malaria control interventions in disease management and prevention; and programme impact in terms of reductions in malaria-related mortality and morbidity. Key issues related to the management of evaluation activities within a national programme include the need to begin with available resources and build incrementally; to explore options for administering evaluation activities; to select, train and supervise staff who carry out evaluation activities; to develop quality control strategies; and to ensure that data are managed and communicated in ways that support effective programme decision-making. For evaluation to lead to improvements in malaria control programmes it must be clearly defined as a part of the

  4. RHrFPGA Radiation-Hardened Re-programmable Field-Programmable Gate Array

    NASA Technical Reports Server (NTRS)

    Sanders, A. B.; LaBel, K. A.; McCabe, J. F.; Gardner, G. A.; Lintz, J.; Ross, C.; Golke, K.; Burns, B.; Carts, M. A.; Kim, H. S.

    2004-01-01

    Viewgraphs on the development of the Radiation-Hardened Re-programmable Field-Programmable Gate Array (RHrFPGA) are presented. The topics include: 1) Radiation Test Suite; 2) Testing Interface; 3) Test Configuration; 4) Facilities; 5) Test Programs; 6) Test Procedure; and 7) Test Results. A summary of heavy ion and proton testing is also included.

  5. The impact of HIV/AIDS on human development in African countries

    PubMed Central

    2009-01-01

    Background In the present paper, we consider the impact of HIV/AIDS on human development in African countries, showing that, beyond health issues, this disease should and must be seen as a global development concern, affecting all components of human development. Consequently, we stress the necessity of multidisciplinary approaches that model, estimate and predict the real impact of HIV/AIDS on human development of African countries in order to optimise the strategies proposed by national countries, international institutions and their partners. Methods In our search strategy, we relied on secondary information, mainly through National Human Development Reports of some African countries and regular publications released by the United Nations (UN), United Nations Development Programme (UNDP), World Health Organization (WHO) and the World Bank. We restricted ourselves to reports dealing explicitly with the impact of HIV/AIDS on human development in African countries. Results and discussion HIV/AIDS is affecting the global human development of African countries through its devastating impact on health and demographic indicators such as life expectancy at birth, healthcare assistance, age and sex distribution, economic indicators like income, work force, and economic growth, education and knowledge acquisition and other indicators like governance, gender inequality and human rights. Conclusion On the basis of the national reports reviewed, it appears clearly that HIV/AIDS is no longer a crisis only for the healthcare sector, but presents a challenge to all sectors. Consequently, HIV/AIDS is a development question and should be viewed as such. The disease is impeding development by imposing a steady decline in the key indicators of human development and hence reversing the social and economic gains that African countries are striving to attain. Being at the same time a cause and consequence of poverty and underdevelopment, it constitutes a challenge to human security

  6. Overview of the RFX-mod fusion science programme

    NASA Astrophysics Data System (ADS)

    Martin, P.; Puiatti, M. E.; Agostinetti, P.; Agostini, M.; Alonso, J. A.; Antoni, V.; Apolloni, L.; Auriemma, F.; Avino, F.; Barbalace, A.; Barbisan, M.; Barbui, T.; Barison, S.; Barp, M.; Baruzzo, M.; Bettini, P.; Bigi, M.; Bilel, R.; Boldrin, M.; Bolzonella, T.; Bonfiglio, D.; Bonomo, F.; Brombin, M.; Buffa, A.; Bustreo, C.; Canton, A.; Cappello, S.; Carralero, D.; Carraro, L.; Cavazzana, R.; Chacon, L.; Chapman, B.; Chitarin, G.; Ciaccio, G.; Cooper, W. A.; Dal Bello, S.; Dalla Palma, M.; Delogu, R.; De Lorenzi, A.; Delzanno, G. L.; De Masi, G.; De Muri, M.; Dong, J. Q.; Escande, D. F.; Fantini, F.; Fasoli, A.; Fassina, A.; Fellin, F.; Ferro, A.; Fiameni, S.; Finn, J. M.; Finotti, C.; Fiorentin, A.; Fonnesu, N.; Framarin, J.; Franz, P.; Frassinetti, L.; Furno, I.; Furno Palumbo, M.; Gaio, E.; Gazza, E.; Ghezzi, F.; Giudicotti, L.; Gnesotto, F.; Gobbin, M.; Gonzales, W. A.; Grando, L.; Guo, S. C.; Hanson, J. D.; Hidalgo, C.; Hirano, Y.; Hirshman, S. P.; Ide, S.; In, Y.; Innocente, P.; Jackson, G. L.; Kiyama, S.; Liu, S. F.; Liu, Y. Q.; Lòpez Bruna, D.; Lorenzini, R.; Luce, T. C.; Luchetta, A.; Maistrello, A.; Manduchi, G.; Mansfield, D. K.; Marchiori, G.; Marconato, N.; Marcuzzi, D.; Marrelli, L.; Martini, S.; Matsunaga, G.; Martines, E.; Mazzitelli, G.; McCollam, K.; Momo, B.; Moresco, M.; Munaretto, S.; Novello, L.; Okabayashi, M.; Olofsson, E.; Paccagnella, R.; Pasqualotto, R.; Pavei, M.; Peruzzo, S.; Pesce, A.; Pilan, N.; Piovan, R.; Piovesan, P.; Piron, C.; Piron, L.; Pomaro, N.; Predebon, I.; Recchia, M.; Rigato, V.; Rizzolo, A.; Roquemore, A. L.; Rostagni, G.; Ruzzon, A.; Sakakita, H.; Sanchez, R.; Sarff, J. S.; Sartori, E.; Sattin, F.; Scaggion, A.; Scarin, P.; Schneider, W.; Serianni, G.; Sonato, P.; Spada, E.; Soppelsa, A.; Spagnolo, S.; Spolaore, M.; Spong, D. A.; Spizzo, G.; Takechi, M.; Taliercio, C.; Terranova, D.; Theiler, C.; Toigo, V.; Trevisan, G. L.; Valente, M.; Valisa, M.; Veltri, P.; Veranda, M.; Vianello, N.; Villone, F.; Wang, Z. R.; White, R. B.; Xu, X. Y.; Zaccaria, P.; Zamengo, A.; Zanca, P.; Zaniol, B.; Zanotto, L.; Zilli, E.; Zollino, G.; Zuin, M.

    2013-10-01

    This paper reports the highlights of the RFX-mod fusion science programme since the last 2010 IAEA Fusion Energy Conference. The RFX-mod fusion science programme focused on two main goals: exploring the fusion potential of the reversed field pinch (RFP) magnetic configuration and contributing to the solution of key science and technology problems in the roadmap to ITER. Active control of several plasma parameters has been a key tool in this endeavour. New upgrades on the system for active control of magnetohydrodynamic (MHD) stability are underway and will be presented in this paper. Unique among the existing fusion devices, RFX-mod has been operated both as an RFP and as a tokamak. The latter operation has allowed the exploration of edge safety factor qedge < 2 with active control of MHD stability and studies concerning basic energy and flow transport mechanisms. Strong interaction has continued with the stellarator community in particular on the physics of helical states and on three-dimensional codes.

  7. Installation package for integrated programmable electronic controller and hydronic subsystem - solar heating and cooling

    NASA Technical Reports Server (NTRS)

    1978-01-01

    A description is given of the Installation, Operation, and Maintenance Manual and information on the power panel and programmable microprocessor, a hydronic solar pump system and a hydronic heating hot water pumping system. These systems are integrated into various configurations for usages in solar energy management, control and monitoring, lighting control, data logging and other solar related applications.

  8. What Islamic School Teachers Want: Towards Developing an Islamic Teacher Education Programme

    ERIC Educational Resources Information Center

    Memon, Nadeem

    2011-01-01

    In the 70 year history of Islamic schools in North America, there is yet to be an accredited teacher education programme to train and professionally equip Islamic school teachers with an understanding of an Islamic pedagogy. Arguably, there has been an imbalance of energy placed on curriculum development projects over the considerations of teacher…

  9. Indian Solar Cities Programme: An Overview of Major Activities and Accomplishments (Presentation)

    SciTech Connect

    Kandt, A.

    2012-05-01

    Indian Solar Cities Programme supports 60 Indian cities in the development of EE and RE projects. Aims to reduce conventional energy demand by 10% by 2013, compared to a baseline year of 2008, and support is provided to municipal corporations for preparing and implementing a master plan.

  10. Geothermal projects funded under the NER 300 programme - current state of development and knowledge gained

    NASA Astrophysics Data System (ADS)

    Uihlein, Andreas; Salto Saura, Lourdes; Sigfusson, Bergur; Lichtenvort, Kerstin; Gagliardi, Filippo

    2015-04-01

    Introduction The NER 300 programme, managed by the European Commission is one of the largest funding programmes for innovative low-carbon energy demonstration projects. NER 300 is so called because it is funded from the sale of 300 million emission allowances from the new entrants' reserve (NER) set up for the third phase of the EU emissions trading system (ETS). The programme aims to successfully demonstrate environmentally safe carbon capture and storage (CCS) and innovative renewable energy (RES) technologies on a commercial scale with a view to scaling up production of low-carbon technologies in the EU. Consequently, it supports a wide range of CCS and RES technologies (bioenergy, concentrated solar power, photovoltaics, geothermal, wind, ocean, hydropower, and smart grids). Funded projects and the role of geothermal projects for the programme In total, about EUR 2.1 billion have been awarded to 39 projects through the programme's 2 calls for proposals (the first awarded in December 2012, the second in July 2014). The programme has awarded around 70 mEUR funding to 3 geothermal projects in Hungary, Croatia and France (see Annex). The Hungarian geothermal project awarded funding under the first call will enter into operation at the end of 2015 and the rest are expected to start in 2016 (HR) and in 2018 (FR), respectively. Knowledge Sharing Knowledge sharing requirements are built into the legal basis of the programme as a critical tool to lower risks in bridging the transition to large-scale production of innovative renewable energy and CCS deployment. Projects have to submit annually to the European Commission relevant knowledge gained during that year in the implementation of their project. The relevant knowledge is aggregated and disseminated by the European Commission to industry, research, government, NGO and other interest groups and associations in order to provide a better understanding of the practical challenges that arise in the important step of

  11. Making programmable BMS safe and reliable

    SciTech Connect

    Cusimano, J.A.

    1995-12-01

    Burner management systems ensure safe admission of fuel to the furnace and prevent explosions. This article describes how programmable control systems can be every bit as safe and reliable as hardwired or standard programmable logic controller-based designs. High-pressure boilers are required by regulatory agencies and insurance companies alike to be equipped with a burner management system (BMS) to ensure safe admission of fuel to the furnace and to prevent explosions. These systems work in parallel with, but independently of, the combustion and feedwater control systems that start up, monitor, and shut down burners and furnaces. Safety and reliability are the fundamental requirements of a BMS. Programmable control system for BMS applications are now available that incorporate high safety and reliability into traditional microprocessor-based designs. With one of these control systems, a qualified systems engineer applying relevant standards, such as the National Fire Protection Assn (NFPA) 85 series, can design and implement a superior BMS.

  12. The SAS-3 programmable telemetry system

    NASA Technical Reports Server (NTRS)

    Peterson, M. R.

    1975-01-01

    Basic concept, system design and operation principles of the telemetry system developed for the Small Astronomy Satellite-3 (SAS-3) are analyzed. The concept of programmable format selected for the SAS-3 represents an optical combination of the fixed format system of SAS-1 and SAS-2, and the adaptive format concept. The programmable telemetry system permits a very wide range of changes in the data sampling order by a ground control station, depending on the experimental requirements, so that the maximal amount of useful data can be returned from orbit. The programmable system also allows the data format to differ from one spacecraft to another without changing hardware. Attention is given to the command requirements and redundancy of the SAS-3 telemetry system.

  13. Programmable DNA-Mediated Multitasking Processor.

    PubMed

    Shu, Jian-Jun; Wang, Qi-Wen; Yong, Kian-Yan; Shao, Fangwei; Lee, Kee Jin

    2015-04-30

    Because of DNA appealing features as perfect material, including minuscule size, defined structural repeat and rigidity, programmable DNA-mediated processing is a promising computing paradigm, which employs DNAs as information storing and processing substrates to tackle the computational problems. The massive parallelism of DNA hybridization exhibits transcendent potential to improve multitasking capabilities and yield a tremendous speed-up over the conventional electronic processors with stepwise signal cascade. As an example of multitasking capability, we present an in vitro programmable DNA-mediated optimal route planning processor as a functional unit embedded in contemporary navigation systems. The novel programmable DNA-mediated processor has several advantages over the existing silicon-mediated methods, such as conducting massive data storage and simultaneous processing via much fewer materials than conventional silicon devices.

  14. Implementing neural nets with programmable logic

    NASA Technical Reports Server (NTRS)

    Vidal, Jacques J.

    1988-01-01

    Networks of Boolean programmable logic modules are presented as one purely digital class of artificial neural nets. The approach contrasts with the continuous analog framework usually suggested. Programmable logic networks are capable of handling many neural-net applications. They avoid some of the limitations of threshold logic networks and present distinct opportunities. The network nodes are called dynamically programmable logic modules. They can be implemented with digitally controlled demultiplexers. Each node performs a Boolean function of its inputs which can be dynamically assigned. The overall network is therefore a combinational circuit and its outputs are Boolean global functions of the network's input variables. The approach offers definite advantages for VLSI implementation, namely, a regular architecture with limited connectivity, simplicity of the control machinery, natural modularity, and the support of a mature technology.

  15. Radiation Effects on Current Field Programmable Technologies

    NASA Technical Reports Server (NTRS)

    Katz, R.; LaBel, K.; Wang, J. J.; Cronquist, B.; Koga, R.; Penzin, S.; Swift, G.

    1997-01-01

    Manufacturers of field programmable gate arrays (FPGAS) take different technological and architectural approaches that directly affect radiation performance. Similar y technological and architectural features are used in related technologies such as programmable substrates and quick-turn application specific integrated circuits (ASICs). After analyzing current technologies and architectures and their radiation-effects implications, this paper includes extensive test data quantifying various devices total dose and single event susceptibilities, including performance degradation effects and temporary or permanent re-configuration faults. Test results will concentrate on recent technologies being used in space flight electronic systems and those being developed for use in the near term. This paper will provide the first extensive study of various configuration memories used in programmable devices. Radiation performance limits and their impacts will be discussed for each design. In addition, the interplay between device scaling, process, bias voltage, design, and architecture will be explored. Lastly, areas of ongoing research will be discussed.

  16. The Schome Park Programme: Exploring Educational Alternatives

    NASA Astrophysics Data System (ADS)

    Twining, Peter; Footring, Shri

    The Schome Park Programme set out to extend thinking about what the education system for the information age (Schome) should be like. The first three phases of the programme spanned 13 months and involved the use of Schome Park, our "closed" island(s) in Teen Second LifeTM (TSL) virtual world alongside a wiki and forum. During this time approximately two hundred 13-17 year olds and around 50 adults were given access to Schome Park. Having explained the context in which this work took place the paper outlines the initial educational design underpinning the programme and describes some of the activities which took place. It goes on to explore some dimensions of practice which emerged from the data analysis towards the end of Phase 3, focusing on learner experiences of experimentation, playfulness, curriculum, choice, participation and the expression of the learner voice.

  17. Sellafield Decommissioning Programme - Update and Lessons Learned

    SciTech Connect

    Lutwyche, P. R.; Challinor, S. F.

    2003-02-24

    The Sellafield site in North West England has over 240 active facilities covering the full nuclear cycle from fuel manufacture through generation, reprocessing and waste treatment. The Sellafield decommissioning programme was formally initiated in the mid 1980s though several plants had been decommissioned prior to this primarily to create space for other plants. Since the initiation of the programme 7 plants have been completely decommissioned, significant progress has been made in a further 16 and a total of 56 major project phases have been completed. This programme update will explain the decommissioning arrangements and strategies and illustrate the progress made on a number of the plants including the Windscale Pile Chimneys, the first reprocessing plan and plutonium plants. These present a range of different challenges and requiring approaches from fully hands on to fully remote. Some of the key lessons learned will be highlighted.

  18. Evaluating a nurse mentor preparation programme.

    PubMed

    Gray, Olivia; Brown, Donna

    Following the introduction of a regional nurse mentor preparation programme, research was undertaken within a health and social care trust to explore both the trainee mentors' and their supervisors' perception of this new programme. A qualitative study involving focus groups was undertaken. The focus groups comprised a total of twelve participants including five trainee mentors and seven supervisors (experienced mentors) who had recently completed a mentor preparation programme. Data were analysed using Braun and Clarke's thematic analysis. Three themes were identified from the data: personal investment (including the emotional impact of mentoring) contextual perceptions (environmental factors such as time) and intellectual facets (related to personal and professional growth). Comprehensive preparation for mentors appears to be effective in developing mentors with the ability to support nursing students in practice. However, further study is required to explore how to support mentors to balance the demands of the mentoring role with the delivery of patient care.

  19. Antibiotic stewardship programmes and the surgeon's role.

    PubMed

    Çakmakçi, M

    2015-04-01

    Inappropriate antibiotic use is a frequent occurrence, especially in surgical units. Among the unnecessary costs of such usage are unfavourable outcomes for patients and the emergence and spread of resistant bacteria. Antibiotic stewardship programmes aim to limit the spread of antibiotic resistance by promoting thoughtful prescribing of antibiotics. Such programmes usually try to control inappropriate use of antibiotics; to optimize the choice of drug, dosing, route, and duration of therapy; to maximize clinical cure or prevention of infection; and to limit unwanted effects and excess cost. In this paper, I discuss the impact of improper use of antibiotics and outline why I believe that antibiotic stewardship is likely to be the best way of dealing with it. Engagement of surgeons in antibiotic stewardship programmes is crucial to their success.

  20. Evaluation of hail suppression programme effectiveness using radar derived parameters

    NASA Astrophysics Data System (ADS)

    Tani, Satyanarayana; Paulitsch, Helmut; Teschl, Reinhard; Süsser-Rechberger, Barbara

    2016-04-01

    The objective of this study is evaluating "the operational hail suppression programme" in the province of Styria, Austria "for the year 2015". For the evaluation purpose the HAILSYS software tool was developed by integrating single polarization C-band weather radar data, aircraft trajectory, radiosonde freezing level data, hail events and crop damages information from the ground. The hail related radar derived parameters are: hail mass aloft, hail mass flux, probability of hail, vertical integrated hail mass, hail kinetic energy flux, and storm severity index. The spatial maps of hail kinetic energy and hail mass were developed to evaluate the seeding effect. The time history plots of vertical integrated hail mass, hail mass aloft and the probability of hail are drawn over an entire cell lifetime. The sensitivity and variation of radar hail parameters over time and associated changes due to cloud seeding will be presented.

  1. Life Skills Training Programmes: Process and Practice.

    ERIC Educational Resources Information Center

    Candotti, S. M.; And Others

    A South African study examined how paraprofessionals were prepared to conduct life skills training. The study, which was designed from an ecosystemic perspective, was conducted in three phases. During phase 1 (1990), the professional members of the research team conducted six assertiveness training and parenting education groups in the community.…

  2. The cost of a healthy diet: a South African perspective.

    PubMed

    Temple, Norman J; Steyn, Nelia P

    2011-05-01

    Energy-dense foods are relatively cheap sources of energy but typically have a low nutrient density. People with a low income may therefore select a relatively less healthy diet. The high energy density of such diets helps explain the association between obesity and low socioeconomic status. Most studies have been carried out in highly developed countries. We have extended this research to South Africa. Some foods, such as oats, beans, carrots, and apples, are moderately priced sources of energy and are healthy (i.e., they have a low energy density and are nutrient dense). However, such foods are likely to be less desired than many other foods, such as candy, cookies, jam, and chocolate, that have a similar cost (in terms of food energy) but are less healthy. We compared the cost of a typical South African diet with a healthier one. On average, the healthier diet costs 69% more, but this estimate is greatly affected by food choices. For a family whose household income is exceeded by one-third of the population, this increased expenditure represents about 30% of total household income. This could be decreased to about 10% to 15% if a healthy diet is carefully designed. Overall, a healthy diet is unaffordable for most South Africans. This shows the importance of not only educating people in developing countries to the importance of a healthy diet but also explaining how to make such a diet affordable. A more effective strategy is government intervention that manipulates food prices.

  3. Adapting Nepal’s polio eradication programme

    PubMed Central

    Paudel, Krishna P; Hampton, Lee M; Bohara, Rajendra; Rai, Indra K; Anaokar, Sameer; Swift, Rachel D; Cochi, Stephen

    2017-01-01

    Abstract Problem Many countries have weak disease surveillance and immunization systems. The elimination of polio creates an opportunity to use staff and assets from the polio eradication programme to control other vaccine-preventable diseases and improve disease surveillance and immunization systems. Approach In 2003, the active surveillance system of Nepal’s polio eradication programme began to report on measles and neonatal tetanus cases. Japanese encephalitis and rubella cases were added to the surveillance system in 2004. Staff from the programme aided the development and implementation of government immunization policies, helped launch vaccination campaigns, and trained government staff in reporting practices and vaccine management. Local setting Nepal eliminated indigenous polio in 2000, and controlled outbreaks caused by polio importations between 2005 and 2010. Relevant changes In 2014, the surveillance activities had expanded to 299 sites, with active surveillance for measles, rubella and neonatal tetanus, including weekly visits from 15 surveillance medical officers. Sentinel surveillance for Japanese encephalitis consisted of 132 sites. Since 2002, staff from the eradication programme have helped to introduce six new vaccines and helped to secure funding from Gavi, the Vaccine Alliance. Staff have also assisted in responding to other health events in the country. Lesson learnt By expanding the activities of its polio eradication programme, Nepal has improved its surveillance and immunization systems and increased vaccination coverage of other vaccine-preventable diseases. Continued donor support, a close collaboration with the Expanded Programme on Immunization, and the retention of the polio eradication programme’s skilled workforce were important for this expansion. PMID:28250536

  4. An update on EUMETSAT programmes and plans

    NASA Astrophysics Data System (ADS)

    Klaes, K. Dieter; Holmlund, Kenneth

    2016-09-01

    EUMETSAT is providing space based observations for operational meteorology and climate monitoring. The observations are measured by geostationary and sun-synchronous polar orbiting satellites in the frame of mandatory programmes. In the frame of optional programmes further observations for altimetry and oceanography are collected and disseminated. In the frame of third party programmes, EUMETSAT makes available data from other agencies' satellites to the user community. Since summer 2015 MSG-4 complements the current operational fleet of operational geostationary spacecraft, Meteosat-7, which is the last satellite of the first generation and the three satellites of the Second Generation of Meteosat, Meteosat-8, Meteosat-9 and Meteosat-10. MSG-4 became Meteosat-11 and was stored in orbit after successful commissioning. Two satellites of the EUMETSAT Polar System (EPS) provide data from sunsynchronous polar orbit. Metop-B, the second of a series of three satellites, launched in September 2012 and Metop-A, the first of the series, in orbit since October 2006 provide operational services. The satellites belong to the Initial Joint Polar System (IJPS) with the US. EUMETSAT's first optional programme continues to provide data from the Jason-2 satellite since summer 2008. As follow on the Jason-3 satellite was launched in January 2016 and is currently in commissioning. To assure continuity development of Meteosat Third Generation (MTG) is ongoing. The EPS-SG programme was fully approved in summer 2015. In the frame of the Copernicus Programme (formerly GMES (Global Monitoring for Environment and Security)) EUMETSAT will operate the marine part of the Sentinel-3 satellite. It was launched in February 2016 and is currently under commissioning.

  5. Programmes, resources, and needs of HIV-prevention nongovernmental organizations (NGOs) in Africa, Central/Eastern Europe and Central Asia, Latin America and the Caribbean

    PubMed Central

    KELLY, J. A.; SOMLAI, A. M.; BENOTSCH, E. G.; AMIRKHANIAN, Y. A.; FERNANDEZ, M. I.; STEVENSON, L. Y.; SITZLER, C. A.; MCAULIFFE, T. L.; BROWN, K. D.; OPGENORTH, K. M.

    2008-01-01

    This study assessed the programmes, resources, and needs of HIV-prevention nongovernmental organizations (NGOs) in 75 countries in Africa, Central/Eastern Europe and Central Asia, Latin America and the Caribbean. Multiple databases and expert recommendations were used to identify one major HIV-prevention NGO in the capital or a large city in each country, and in-depth interviews were conducted with each NGO Director. Most NGOs are carrying out their programmes with minimal funding and few regularly employed personnel. Most are highly dependent on international donors, but reliance on small grants with short funding periods limits programme development capacity. HIV-prevention activities varied by region, with African NGOs most likely to use peer education and community awareness events; Eastern European NGOs most likely to offer needle exchange; Latin American NGOs to have resource centres and offer risk reduction programmes; and Caribbean organizations to use mass education approaches. Across regions, NGOs most often targeted the general public and youth, although specialized at-risk groups were the additional focus of attention in some regions. Limited funding, governmental indifference or opposition, AIDS stigma, and social discomfort discussing sex were often cited as barriers to new HIV-prevention programmes. NGOs are critical service providers. However, their funding, programmes, and resource capacities must be strengthened if NGOs are to realize their full potential in HIV prevention. PMID:16282071

  6. Some African American Males' Perspectives on the Black Woman.

    ERIC Educational Resources Information Center

    Burrow, Rufus, Jr.

    1992-01-01

    Presents views of Frederick Douglass, W. E. B. Du Bois, Malcolm X, and James Hal Cone (African-American male leaders) toward African-American women in the United States. Discusses the role of African-American men in addressing and eradicating sexism in African-American churches and the African-American community. (SLD)

  7. What promotes sustainability in Safe Community programmes?

    PubMed Central

    Nordqvist, Cecilia; Timpka, Toomas; Lindqvist, Kent

    2009-01-01

    Background The theory and practice of safety promotion has traditionally focused on the safety of individuals. This study also includes systems, environments, and organizations. Safety promotion programmes are designed to support community health initiatives taking a bottom-up approach. This is a long-term and complex process. The aim of this study was to try to empirically identify factors that promote sustainability in the structures of programmes that are managed and coordinated by the local government. Methods Four focus group sessions with local government politicians and administrators in designated Safe Communities were conducted and analyzed using qualitative content analysis. Results Collaboration was found to be the basis for sustainability. Networks, enabling municipalities to exchange ideas, were reported to positively influence the programmes. Personal contacts rather than organizations themselves, determine whether collaboration is sustained. Participants reported an increase in cross-disciplinary collaboration among staff categories. Administrators and politicians were reported to collaborate well, which was perceived to speed up decision-making and thus to facilitate the programme work. Support from the politicians and the county council was seen as a prerequisite. Participants reported an increased willingness to share information between units, which, in their view, supports sustainability. A structure in which all local authorities' offices were located in close proximity to one another was considered to support collaboration. Appointing a public health coordinator responsible for the programme was seen as a way to strengthen the relational resources of the programme. Conclusion With a public health coordinator, the 'external' negotiating power was concentrated in one person. Also, the 'internal' programme strength increased when the coordination was based on a bureaucratic function rather than on one individual. Increased relational resources

  8. Nurses' views on workplace wellbeing programmes.

    PubMed

    Wright, Nicola; Zakarin, Melissa; Blake, Holly

    2016-11-24

    Workplace stress is prevalent among nurses. Healthcare employers have implemented complementary and alternative therapies (CATs) for relaxation and stress management within workplace wellbeing programmes. In-depth interviews were conducted with 12 registered nurses to explore the perceptions and experiences of nurses towards accessing CATs in and outside the workplace. Interviews were audio recorded and transcribed verbatim. Data were analysed using conventional, qualitative thematic techniques. Themes identified were 'perceptions of complementary and alternative therapies for stress management' and 'engagement with workplace wellness schemes'. CATs have a role within workplace wellbeing programmes and nurses are not averse to accessing them, although there are barriers to access that need to be addressed.

  9. Developing an online programme in computational biology.

    PubMed

    Vincent, Heather M; Page, Christopher

    2013-11-01

    Much has been written about the need for continuing education and training to enable life scientists and computer scientists to manage and exploit the different types of biological data now becoming available. Here we describe the development of an online programme that combines short training courses, so that those who require an educational programme can progress to complete a formal qualification. Although this flexible approach fits the needs of course participants, it does not fit easily within the organizational structures of a campus-based university.

  10. Overview of the National Centralized Tokamak programme

    NASA Astrophysics Data System (ADS)

    Kikuchi, M.; Tamai, H.; Matsukawa, M.; Fujita, T.; Takase, Y.; Sakurai, S.; Kizu, K.; Tsuchiya, K.; Kurita, G.; Morioka, A.; Hayashi, N.; Miura, Y.; Itoh, S.; Bialek, J.; Navratil, G.; Ikeda, Y.; Fujii, T.; Kurihara, K.; Kubo, H.; Kamada, Y.; Miya, N.; Suzuki, T.; Hamamatsu, K.; Kawashima, H.; Kudo, Y.; Masaki, K.; Takahashi, H.; Takechi, M.; Akiba, M.; Okuno, K.; Ishida, S.; Ichimura, M.; Imai, T.; Hashizume; Miura, Y. M.; Horiike, H.; Kimura, A.; Tsutsui, H.; Matsuoka, M.; Uesugi, Y.; Sagara, A.; Nishimura, A.; Shimizu, A.; Sakamoto, M.; Nakamura, K.; Sato, K.; Okano, K.; Ida, K.; Shimada, H. R.; Kishimoto, Y.; Azechi, H.; Tanaka, S.; Yatsu, K.; Yoshida, N.; Inutake, M.; Fujiwara, M.; Inoue, N.; Hosogane, N.; Kuriyama, M.; Ninomiya, H.

    2006-03-01

    An overview is given of the National Centralized Tokamak (NCT) programme as a research programme for advanced tokamak research to succeed JT-60U. The mission of NCT is to establish high beta steady-state operation for DEMO and to contribute to ITER. The machine flexibility is pursued in aspect ratio and shape controllability for the demonstration of the high-β steady-state, feedback control of resistive wall modes, wide current and pressure profile control capability and also very long pulse steady-state operation. Existing JT-60 infrastructure such as the heating and current drive system, power supplies and cooling systems will be best utilized for this modification.

  11. A programmable interface to neuromolecular computing networks.

    PubMed

    Akingbehin, K

    1995-01-01

    A programmable interface is provided to a simulated network of reaction-diffusion neurons. The interface allows special 'learn' and 'decide' syntactic constructs to be intermixed with conventional programming constructs. This hybrid combination allows the power of programmability to be combined with the power of adaptability to provide innovative solutions to complex problems. The network uses reaction-diffusion neurons instead of adaline neurons. A mesh topology is used instead of a feedforward topology. The performance of the mesh reaction-diffusion network compares favorably with that of conventional feedforward adaline networks. Enhancements to incorporate short- and long-term memory are described.

  12. Malaria control in the African Region: perceptions and viewspoints on proceedings of the Africa Leaders Malaria Alliance (ALMA)

    PubMed Central

    2011-01-01

    Background In 2009 a total of 153,408 malaria deaths were reported in Africa. Eleven countries showed a reduction of more than 50% in either confirmed malaria cases or malaria admissions and deaths in recent years. However, many African countries are not on track to achieve the malaria component of the Millennium Development Goal (MDG) 6. The African Leaders Malaria Alliance (ALMA) working session at the 15th African Union Summit discussed the bottlenecks to achieving MDG 6 (specifically halting and beginning to reverse the incidence of malaria by 2015), success factors, and what countries needed to do to accelerate achievement of the MDG. The purpose of this article is to reflect on the proceedings of the ALMA working session. Methods Working methods of the session included speeches and statements by invited speakers and high-level panel discussions. Discussion The main bottlenecks identified related to the capacity of the health systems to deliver quality care and accessibility issues; need for strong, decentralized malaria-control programmes with linkages with other health and development sectors, the civil society and private sector entities; benefits of co-implementation of malaria control programmes with child survival or other public health interventions; systematic application of integrated promotive, preventive, diagnostic and case management interventions with full community participation; adapting approaches to local political, socio-cultural and administrative environments. The following prerequisites for success were identified: a clear vision and effective leadership of national malaria control programmes; high level political commitment to ensure adequate capacity in expertise, skill mix and number of managers, technicians and service providers; national ownership, intersectoral collaboration and accountability, as well as strong civil society and private sector involvement; functional epidemiological surveillance systems; and levering of African

  13. Health Informatics: Developing a Masters Programme in Rwanda based on the IMIA Educational Recommendations and the IMIA Knowledge Base.

    PubMed

    Wright, Graham; Verbeke, Frank; Nyssen, Marc; Betts, Helen

    2015-01-01

    Since 2011, the Regional e-Health Center of Excellence in Rwanda (REHCE) has run an MSc in Health Informatics programme (MSc HI). A programme review was commissioned in February 2014 after 2 cohorts of students completed the post-graduate certificate and diploma courses and most students had started preparatory activity for their master dissertation. The review developed a method for mapping course content on health informatics competences and knowledge units. Also the review identified and measured knowledge gaps and content redundancy. Using this method, we analyzed regulatory and programme documents combined with stakeholder interviews, and demonstrated that the existing MSc HI curriculum did not completely address the needs of the Rwandan health sector. Teaching strategies did not always match students' expectations. Based on a detailed Rwandan health informatics needs assessment, International Medical Informatics Association (IMIA)'s Recommendations on Education in Biomedical and Health Informatics and the IMIA Health Informatics Knowledge Base, a new curriculum was developed and provided a better competences match for the specifics of healthcare in the Central African region. The new approved curriculum will be implemented in the 2014/2015 academic year and options for regional extension of the programme to Eastern DRC (Bukavu) and Burundi (Bujumbura) are being investigated.

  14. Understanding geographic origins and history of admixture among chimpanzees in European zoos, with implications for future breeding programmes.

    PubMed

    Hvilsom, C; Frandsen, P; Børsting, C; Carlsen, F; Sallé, B; Simonsen, B T; Siegismund, H R

    2013-06-01

    Despite ample focus on this endangered species, conservation planning for chimpanzees residing outside Africa has proven a challenge because of the lack of ancestry information. Here, we analysed the largest number of chimpanzee samples to date, examining microsatellites in >100 chimpanzees from the range of the species in Africa, and 20% of the European zoo population. We applied the knowledge about subspecies differentiation throughout equatorial Africa to assign origin to chimpanzees in the largest conservation management programme globally. A total of 63% of the genotyped chimpanzees from the European zoos could be assigned to one of the recognized subspecies. The majority being of West African origin (40%) will help consolidate the current breeding programme for this subspecies and the identification of individuals belonging to the two other subspecies so far found in European zoos can form the basis for breeding programmes for these. Individuals of various degree of mixed ancestry made up 37% of the genotyped European zoo population and thus highlight the need for appropriate management programmes guided by genetic analysis to preserve maximum genetic diversity and reduce hybridization among subspecies.

  15. [Return of African sleeping sickness].

    PubMed

    Stingl, Peter

    2006-09-14

    At present there is a steady rise in African sleeping sickness (trypanosomiasis) transmitted by the Tsetse fly, and which if left untreated, is fatal. Thanks to more than so years of neglect by research, our therapeutic repertoire is limited to medications with a high level of toxicity. Both WHO and international aid organizations are pushing hard for the development of new, more efficient drugs that can be readily applied in the field.

  16. Introducing new diagnostics into STI control programmes: the importance of programme science.

    PubMed

    Peeling, Rosanna W; Mabey, David; Ballard, Ronald C

    2013-03-01

    Many innovative diagnostic technologies will become commercially available over the next 5-10 years. These tests can potentially transform the diagnosis of sexually transmitted infections but their introduction into control programmes can be hampered by health system constraints, and political, cultural, socioeconomic and behavioural factors. We used the introduction of syphilis rapid tests to illustrate the importance of programme science to address the gap between accruing evidence of acceptable test performance and the complexity of programme design, implementation and evaluation of test deployment to address public health needs and improve patient-important outcomes.

  17. Universal programmable quantum circuit schemes to emulate an operator.

    PubMed

    Daskin, Anmer; Grama, Ananth; Kollias, Giorgos; Kais, Sabre

    2012-12-21

    Unlike fixed designs, programmable circuit designs support an infinite number of operators. The functionality of a programmable circuit can be altered by simply changing the angle values of the rotation gates in the circuit. Here, we present a new quantum circuit design technique resulting in two general programmable circuit schemes. The circuit schemes can be used to simulate any given operator by setting the angle values in the circuit. This provides a fixed circuit design whose angles are determined from the elements of the given matrix-which can be non-unitary-in an efficient way. We also give both the classical and quantum complexity analysis for these circuits and show that the circuits require a few classical computations. For the electronic structure simulation on a quantum computer, one has to perform the following steps: prepare the initial wave function of the system; present the evolution operator U = e(-iHt) for a given atomic and molecular Hamiltonian H in terms of quantum gates array and apply the phase estimation algorithm to find the energy eigenvalues. Thus, in the circuit model of quantum computing for quantum chemistry, a crucial step is presenting the evolution operator for the atomic and molecular Hamiltonians in terms of quantum gate arrays. Since the presented circuit designs are independent from the matrix decomposition techniques and the global optimization processes used to find quantum circuits for a given operator, high accuracy simulations can be done for the unitary propagators of molecular Hamiltonians on quantum computers. As an example, we show how to build the circuit design for the hydrogen molecule.

  18. Successful food-based programmes, supplementation and fortification.

    PubMed

    Mannar, M G Venkatesh

    2006-12-01

    This review highlights interventions and delivery mechanisms to alleviate macro- and micronutrient deficiencies in preschool children. These deficiencies can be addressed through an integrated combination of improved dietary intake, supplementation, commercial and home-based fortification of complementary foods. Several developed and developing countries have implemented successful approaches to eliminate protein-energy malnutrition and micronutrient deficiencies with sustained impact. These include provision of oral supplements in capsule, tablet or syrup form. Certain micronutrients (eg, vitamin A) can be provided as high-dose supplements twice per year. Most other vitamins and minerals (eg, iron, zinc, iodine) need to be provided in daily doses. Fortified complementary foods provided through public feeding programmes and commercially marketed foods have also made a positive impact. There is growing evidence of the impact of home-based fortification of complementary foods using premixes in single-serving sachets. The fortification of commercially marketed staple foods such as cereal flours, cooking oils and dairy products could have a small but significant impact on preschool children. Cereal flours with iron, folic acid and other nutrients have expanded rapidly, with evidence of impact. A key need is to deliver micronutrients to remote and impoverished populations in an affordable and sustainable manner. Government commitment, clear policy and programme direction, advocacy and communication combined with a strong public-private partnership is essential for successful programmes. Often a period of voluntary fortification needs to be followed by mandatory requirement to ensure full compliance and sustained impact. The review concludes that proven technologies, communications and infrastructure can be harnessed to ensure that the nutrient needs of preschool children are met. When administered systematically with the commitment of and participation by the public and

  19. Genome-wide patterns of population structure and admixture in West Africans and African Americans.

    PubMed

    Bryc, Katarzyna; Auton, Adam; Nelson, Matthew R; Oksenberg, Jorge R; Hauser, Stephen L; Williams, Scott; Froment, Alain; Bodo, Jean-Marie; Wambebe, Charles; Tishkoff, Sarah A; Bustamante, Carlos D

    2010-01-12

    Quantifying patterns of population structure in Africans and African Americans illuminates the history of human populations and is critical for undertaking medical genomic studies on a global scale. To obtain a fine-scale genome-wide perspective of ancestry, we analyze Affymetrix GeneChip 500K genotype data from African Americans (n = 365) and individuals with ancestry from West Africa (n = 203 from 12 populations) and Europe (n = 400 from 42 countries). We find that population structure within the West African sample reflects primarily language and secondarily geographical distance, echoing the Bantu expansion. Among African Americans, analysis of genomic admixture by a principal component-based approach indicates that the median proportion of European ancestry is 18.5% (25th-75th percentiles: 11.6-27.7%), with very large variation among individuals. In the African-American sample as a whole, few autosomal regions showed exceptionally high or low mean African ancestry, but the X chromosome showed elevated levels of African ancestry, consistent with a sex-biased pattern of gene flow with an excess of European male and African female ancestry. We also find that genomic profiles of individual African Americans afford personalized ancestry reconstructions differentiating ancient vs. recent European and African ancestry. Finally, patterns of genetic similarity among inferred African segments of African-American genomes and genomes of contemporary African populations included in this study suggest African ancestry is most similar to non-Bantu Niger-Kordofanian-speaking populations, consistent with historical documents of the African Diaspora and trans-Atlantic slave trade.

  20. Faculty Development through an Educational Action Programme

    ERIC Educational Resources Information Center

    Stigmar, Martin

    2008-01-01

    A number of countries, including Sweden, are reconsidering traditional teaching and learning methods in higher education. This article describes the work of implementing an Educational Action Programme to support faculty development. The work has been organized by an educational developer at the Educational Development Unit (EDU). Representatives…

  1. Implementing biosecurity education: approaches, resources and programmes.

    PubMed

    Minehata, Masamichi; Sture, Judi; Shinomiya, Nariyoshi; Whitby, Simon

    2013-12-01

    This paper aims to present possible approaches, resources and programmes to introduce the topic of biosecurity to life scientists and engineers at the higher education level. Firstly, we summarise key findings from a number of international surveys on biosecurity education that have been carried out in the United States, Europe, Israel and the Asia-Pacific region. Secondly, we describe the development of our openly-accessible education resource, illustrating the scope and content of these materials. Thirdly, we report on actual cases of biosecurity education that have been implemented. These include achievements in and lessons derived from the implementation of biosecurity education at the National Defense Medical College in Japan. These experiences are followed by presentation of the expert-level "Train-the-Trainer" programmes subsequently launched by the University of Bradford in the United Kingdom. These examples will help readers to understand how educators can enhance their own understanding about biosecurity issues and how they can then disseminate their knowledge through development of their own customised, relevantly-targeted and stage-tailored education programmes within their own life science communities. By providing these examples, we argue that education for life scientists, policy-makers and other stakeholders about social responsibility on dual-use issues is easily achievable and need not be expensive, time-consuming or over-burdening. We suggest that recurring classes or courses be held at appropriate times during educational programmes to accommodate the developing expertise and advancing learning stages of students.

  2. Report of Programme Commission II (Natural Sciences).

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Paris (France). General Conference.

    As the first part of the report of the Programme Commission II, a summary of discussions on plans for natural sciences and their applications is presented in this document. The two agenda items are: (1) detailed consideration of the 1973-74 draft program and budget and of the 1973-78 draft medium-term outline, and (2) desirability of adopting an…

  3. Creating meaningful business continuity management programme metrics.

    PubMed

    Strong, Brian

    2010-11-01

    The popular axiom, 'what gets measured gets done', is often applied in the quality management and continuous improvement disciplines. This truism is also useful to business continuity practitioners as they continually strive to prove the value of their organisation's investment in a business continuity management (BCM) programme. BCM practitioners must also remain relevant to their organisations as executives focus on the bottom line and maintaining stakeholder confidence. It seems that executives always find a way, whether in a hallway or elevator, to ask BCM professionals about the company's level of readiness. When asked, they must be ready with an informed response. The establishment of a process to measure business continuity programme performance and organisational readiness has emerged as a key component of US Department of Homeland Security 'Voluntary Private Sector Preparedness (PS-Prep) Program' standards where the overarching goal is to improve private sector preparedness for disasters and emergencies. The purpose of this paper is two-fold: to introduce continuity professionals to best practices that should be considered when developing a BCM metrics programme as well as providing a case study of how a large health insurance company researched, developed and implemented a process to measure BCM programme performance and company readiness.

  4. Improved Programmable High-Voltage Power Supply

    NASA Technical Reports Server (NTRS)

    Castell, Karen; Rutberg, Arthur

    1994-01-01

    Improved dc-to-dc converter functions as programmable high-voltage power supply with low-power-dissipation voltage regulator on high-voltage side. Design of power supply overcomes deficiencies of older designs. Voltage regulation with low power dissipation provided on high-voltage side.

  5. Voyageur Wilderness Programme: A Different Educational Approach

    ERIC Educational Resources Information Center

    Savoie, Michelle

    2008-01-01

    Back in 1958, environmental clubs were few, organizations that considered eco-practices were almost non-existent, and the concept of environmental studies at any level in their educational system was in its infancy. It was in this environment that Voyageur Wilderness Programme (VWP) was founded on Voyageur Island, Nym Lake, Quetico, Ontario,…

  6. Evaluation of the 1981 Vocational Preparation Programme.

    ERIC Educational Resources Information Center

    Hailstone, D. L.; Grosvenor, J. S.

    An evaluation project investigated the Vocational Preparation Programme conducted in 1981 by the South Australian Department of Technical and Further Education (TAFE). The vocational preparation program was designed to increase the employability of young unemployed people aged 15 to 19 by providing them with an understanding of a family of related…

  7. The Early Development of Programmable Machinery.

    ERIC Educational Resources Information Center

    Collins, Martin D.

    1985-01-01

    Programmable equipment innovations, precursors of today's technology, are examined, including the development of the binary code and feedback control systems, such as temperature sensing devices, interchangeable parts, punched cards carrying instructions, continuous flow oil refining process, assembly lines for mass production, and the…

  8. International Baccalaureate Diploma Programme: Examining College Readiness

    ERIC Educational Resources Information Center

    Conley, David; McGaughy, Charis; Davis-Molin, Whitney; Farkas, Rachel; Fukuda, Erin

    2014-01-01

    The International Baccalaureate (IB) works with schools, governments, and international organizations to develop challenging programmes of international education and rigorous assessment. This three-phase study prepared by the Educational Policy Improvement Center (EPIC) on behalf of the International Baccalaureate Organization explored the impact…

  9. The Northland fluoridation advocacy programme: an evaluation.

    PubMed

    Gowda, Sunitha; Thomas, David R

    2008-12-01

    On 20 July 2006, the Far North District Council resolved to fluoridate Kaitaia and Kaikohe. This was the first such initiative by any Territorial Local Authority (TLA) in New Zealand for 23 years, and resulted from a fluoridation advocacy programme. This paper describes the programme implementation, assesses its consistency with the principles of the Treaty of Waitangi, and critically examines the collaboration between the fluoride advocate and the key stakeholders. Process evaluation identified three main categories of programme implementation: policy advocacy, community action projects, and media advocacy. The collaboration of iwi, Maori health providers and the community suggests that the programme was consistent with the principles (partnership, participation and protection) ofthe Treaty ofWaitangi. Media advocacy played an important role in reflecting and engaging community views on fluoridation, and it influenced decision-making by the Far North District Council. The simultaneous, combined 'top-down and bottom-up' approach was an effective and successful strategy for fluoridation advocacy in the community. Less integrated approaches implemented on their own (such as the 'top down' approach in Whangarei and the 'bottom-up' approach in Dargaville) were not effective.

  10. Youth, Terrorism and Education: Britain's Prevent Programme

    ERIC Educational Resources Information Center

    Thomas, Paul

    2016-01-01

    Since the 7/7 bombings of July 2005, Britain has experienced a domestic terror threat posed by a small minority of young Muslims. In response, Britain has initiated "Prevent," a preventative counter-terrorism programme. Building on previous, general critiques of Prevent, this article outlines and critically discusses the ways in which…

  11. Distillation Calculations with a Programmable Calculator.

    ERIC Educational Resources Information Center

    Walker, Charles A.; Halpern, Bret L.

    1983-01-01

    Describes a three-step approach for teaching multicomponent distillation to undergraduates, emphasizing patterns of distribution as an aid to understanding the separation processes. Indicates that the second step can be carried out by programmable calculators. (A more complete set of programs for additional calculations is available from the…

  12. Empathy among students in engineering programmes

    NASA Astrophysics Data System (ADS)

    Rasoal, Chato; Danielsson, Henrik; Jungert, Tomas

    2012-10-01

    Engineers face challenges when they are to manage project groups and be leaders for organisations because such positions demand skills in social competence and empathy. Previous studies have shown that engineers have low degrees of social competence skills. In this study, the level of empathy as measured by the four subscales of the Interpersonal Reactivity Index, perspective taking, fantasy, empathic distress and empathic concern, among engineering students was compared to students in health care profession programmes. Participants were undergraduate students at Linköping University, 365 students from four different health care profession programmes and 115 students from two different engineering programmes. When the empathy measures were corrected for effects of sex, engineering students from one of the programmes had lower empathy than psychology and social worker students on the fantasy and perspective-taking subscales. These results raise questions regarding opportunities for engineering students to develop their empathic abilities. It is important that engineering students acquire both theoretical and practical knowledge and skills regarding empathy.

  13. 21 CFR 870.3700 - Pacemaker programmers.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Pacemaker programmers. 870.3700 Section 870.3700 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED... is required to be filed with the Food and Drug Administration on or before September 20, 2012,...

  14. Impact of Entrepreneurship Programmes on University Students

    ERIC Educational Resources Information Center

    Iglesias-Sánchez, Patricia P.; Jambrino-Maldonado, Carmen; Velasco, Antonio Peñafiel; Kokash, Husam

    2016-01-01

    Purpose: The purpose of this paper is to investigate entrepreneurship in Malaga University based on the Theory of Planned Behaviour model. There are two objectives: to analyse the influence of the main elements of orientation to entrepreneurship and to evaluate the efficiency of education programmes in the university system.…

  15. String Formatting Considered Harmful for Novice Programmers

    ERIC Educational Resources Information Center

    Hughes, Michael C.; Jadud, Matthew C.; Rodrigo, Ma. Mercedes T.

    2010-01-01

    In Java, "System.out.printf" and "String.format" consume a specialised kind of string commonly known as a format string. In our study of first-year students at the Ateneo de Manila University, we discovered that format strings present a substantial challenge for novice programmers. Focusing on their first laboratory we found…

  16. Community nutrition programmes, globalization and sustainable development.

    PubMed

    Suárez-Herrera, José Carlos

    2006-08-01

    On an international scale, the last seventy-five years have been a period of deep social, economic and political transformation for the developing countries. They have been especially influenced by the international phenomenon of globalization, the benefits of which have been unequally distributed among countries. In this context, the strategies used to improve the general nutritional health of the population of developing countries include broad approaches integrating nutritional interventions in a context of sustainable community development, while valuing the existing relations between fields as diverse as agriculture, education, sociology, economy, health, environment, hygiene and nutrition. The community nutrition programmes are emblematic of these initiatives. Nevertheless, in spite of the increasing evidence of the potential possibilities offered by these programmes to improve the nutritional status and contribute to the development and the self-sufficiency of the community, their success is relatively limited, due to the inappropriate planning, implementation and evaluation of the programmes. In the present article, I attempt to emphasie the importance of community participation of the population of developing countries in the community nutrition programmes within the context of globalization. This process is not only an ethical imperative, but a pragmatic one. It is a crucial step in the process of liberation, democratization and equality that will lead to true sustainable development.

  17. Peer Coaching in TEFL/TESL Programmes

    ERIC Educational Resources Information Center

    Vacilotto, Silvana; Cummings, Rhoda

    2007-01-01

    The purpose of this study was to investigate the effectiveness of the peer coaching model as a professional development tool for pre-service ESL/EFL teachers, and its possible applicability to the Binational Centres in Brazil, as well as to teacher development programmes in general. Peer coaching, a reflective approach to teacher development,…

  18. Implementing Biosecurity Education: Approaches, Resources and Programmes

    PubMed Central

    Minehata, Masamichi; Sture, Judi; Shinomiya, Nariyoshi; Whitby, Simon

    2016-01-01

    This paper aims to present possible approaches, resources and programmes to introduce the topic of biosecurity to life scientists and engineers at the higher education level. Firstly, we summarise key findings from a number of international surveys on biosecurity education that have been carried out in the United States, Europe, Israel and the Asia–Pacific region. Secondly, we describe the development of our openly-accessible education resource, illustrating the scope and content of these materials. Thirdly, we report on actual cases of biosecurity education that have been implemented. These include achievements in and lessons derived from the implementation of biosecurity education at the National Defense Medical College in Japan. These experiences are followed by presentation of the expert-level “Train-the-Trainer” programmes subsequently launched by the University of Bradford in the United Kingdom. These examples will help readers to understand how educators can enhance their own understanding about biosecurity issues and how they can then disseminate their knowledge through development of their own customised, relevantly-targeted and stage-tailored education programmes within their own life science communities. By providing these examples, we argue that education for life scientists, policy-makers and other stakeholders about social responsibility on dual-use issues is easily achievable and need not be expensive, time-consuming or over-burdening. We suggest that recurring classes or courses be held at appropriate times during educational programmes to accommodate the developing expertise and advancing learning stages of students. PMID:22038099

  19. Using Programmable Calculators to Solve Electrostatics Problems.

    ERIC Educational Resources Information Center

    Yerian, Stephen C.; Denker, Dennis A.

    1985-01-01

    Provides a simple routine which allows first-year physics students to use programmable calculators to solve otherwise complex electrostatic problems. These problems involve finding electrostatic potential and electric field on the axis of a uniformly charged ring. Modest programing skills are required of students. (DH)

  20. Programmable Calculators: Uses in Freshman Chemistry Laboratories

    ERIC Educational Resources Information Center

    And Others; Clark, G. J.

    1975-01-01

    Suggests two uses for the programmable calculator in the freshman chemistry laboratory: as a means of determining whether or not a student's raw data from a laboratory experiment fall within acceptable tolerance limits; and as a means of checking the reliability of unknowns and grading on quantitative experiments. (MLH)

  1. The Legacy of the Microelectronics Education Programme.

    ERIC Educational Resources Information Center

    Thorne, Michael

    1987-01-01

    Describes the Microelectronics Education Programme (MEP), a plan developed to help British secondary school students learn about microcomputers and the role of technology in society, and its successor, the Microelectronics Support Unit (MESU). Highlights include curriculum development, teacher training, computer assisted instruction and the…

  2. Development of the Microelectronic Education Programme.

    ERIC Educational Resources Information Center

    Fothergill, Richard

    1982-01-01

    Describes the development of the Microelectronics Education Programme for England, Northern Ireland and Wales, including funding, aims, and relationships of the national program with local organizations. The program focuses on incorporating uses/effects of microelectronic technology into the total school curriculum and ways of using this…

  3. United Nations Environment Programme. Annual Review 1981.

    ERIC Educational Resources Information Center

    United Nations Environment Programme, Nairobi (Kenya).

    This edition of the United Nations Environment Programme (UNEP) annual report is structured in three parts. Part 1 focuses on three contemporary problems (ground water, toxic chemicals and human food chains and environmental economics) and attempts to solve them. Also included is a modified extract of "The Annual State of the Environment…

  4. ESO Fellowship Programme 2007/2008

    NASA Astrophysics Data System (ADS)

    2007-06-01

    The European Organisation for Astronomical Research in the Southern Hemisphere awards several postdoctoral fellowships each year. The goal of these fellowships is to offer young scientists op-portunities and facilities to enhance their research programmes by facilitating close contact between young astronomers and the activities and staff at one of the world's foremost observatories.

  5. African-Centered Education: An Approach to Schooling for Social Justice for African American Students

    ERIC Educational Resources Information Center

    Marks, Jay B.; Tonso, Karen L.

    2006-01-01

    This essay argues that offering African American students an African-centered education is one way to promote social justice in public education. We begin with a summary of the inadequate educations offered to many African American students, and then use philosophical interpretations of equal educational opportunity to delineate the requirements…

  6. Investigating Instructional Practices of an African American Male Mathematics Teacher with Underachieving African American Male Students

    ERIC Educational Resources Information Center

    Muhammad, Rhonda K.

    2012-01-01

    This qualitative study examined the instructional practices of an experienced African American mathematics teacher to determine his perceived capabilities in augmenting academic proficiency for his African American male students. Provided in this descriptive case study are the lived experiences of an African American male teacher working to move…

  7. What's God got to do with it? Engaging African-American faith-based institutions in HIV prevention.

    PubMed

    Nunn, Amy; Cornwall, Alexandra; Thomas, Gladys; Callahan, Pastor Leslie; Waller, Pastor Alyn; Friend, Rafiyq; Broadnax, Pastor Jay; Flanigan, Timothy

    2013-01-01

    African-Americans are disproportionately infected and affected by HIV/AIDS. Although faith-based institutions play critical leadership roles in the African-American community, the faith-based response to HIV/AIDS has historically been lacking. We explore recent successful strategies of a citywide HIV/AIDS awareness and testing campaign developed in partnership with 40 African-American faith-based institutions in Philadelphia, Pennsylvania, a city with some of the USA's highest HIV infection rates. Drawing on important lessons from the campaign and subsequent efforts to sustain the campaign's momentum with a citywide HIV testing, treatment and awareness programme, we provide a road map for engaging African-American faith communities in HIV prevention that includes partnering with faith leaders, engaging the media to raise awareness, destigmatising HIV/AIDS and encouraging HIV testing, and conducting educational and HIV testing events at houses of worship. African-American faith-based institutions have a critical role to play in raising awareness about the HIV/AIDS epidemic and reducing racial disparities in HIV infection.

  8. 75 FR 2844 - African Development Foundation, Board of Directors Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-19

    ...; ] AFRICAN DEVELOPMENT FOUNDATION African Development Foundation, Board of Directors Meeting Time: Tuesday, January 26, 2010, 8:30 a.m. to 1 p.m. Place: African Development Foundation, Conference Room, 1400...

  9. 75 FR 45600 - African Development Foundation, Board of Directors Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-03

    ...; ] AFRICAN DEVELOPMENT FOUNDATION African Development Foundation, Board of Directors Meeting Time: Tuesday, August 17, 2010, 8:30 a.m. to 1 p.m. Place: African Development Foundation, Conference Room, 1400...

  10. Race, health, and the African Diaspora.

    PubMed

    Spigner, Clarence

    Health inequalities exist throughout the African Diaspora and are viewed in this article as largely color-coded. In developed, developing, and undeveloped nations today, "racial" stratification is consistently reflected in an inability to provide adequate health regardless of national policy or ideology. For instance, African Americans experience less than adequate health care very similar to Blacks in Britain, in spite of each nations differing health systems. Latin America's Africana Negra communities experience poorer health similar to Blacks throughout the Caribbean. The African continent itself is arguably the poorest on earth. A common history of racism correlates with health disparities across the African Diaspora.

  11. African American girls and the challenges ahead.

    PubMed

    Rozie-Battle, Judith L

    2002-01-01

    The research on the psychosocial development of African American girls is limited. Information that is available focuses on teen pregnancy and health issues such as nutrition and physical activity. African American girls are facing challenges, including poverty, crime, poor self-esteem, and peer pressure. Despite some of the negative characteristics attributed to African American girls, many are achieving some success. Policy makers and service providers need to recognize the resiliency and unique needs of African American girls and develop services that ensure their needs are being fully met.

  12. Rhinoplasty in the African-American patient.

    PubMed

    Rohrich, Rod J; Muzaffar, Arshad R

    2003-03-01

    Because of the increasing popularity of rhinoplasty in the African-American patient, we delineate how a rhinoplasty surgeon can perform this challenging technique to obtain uniform and consistent results. First, we address how one can appreciate and analyze the various aesthetic concepts of beauty and the unique anatomic characteristics of the African-American nose. Second, we present a pragmatic, systematic analysis of the African-American nose. Last, we describe the techniques consistently used to modify the African-American nose while achieving or maintaining facial harmony using the open approach to rhinoplasty. Specific case analyses are presented to demonstrate utilization of the technique.

  13. The African diaspora: history, adaptation and health.

    PubMed

    Rotimi, Charles N; Tekola-Ayele, Fasil; Baker, Jennifer L; Shriner, Daniel

    2016-12-01

    The trans-Atlantic slave trade brought millions of Africans to the New World. Advances in genomics are providing novel insights into the history and health of Africans and the diasporan populations. Recent examples reviewed here include the unraveling of substantial hunter-gatherer and 'Eurasian' admixtures across sub-Saharan Africa, expanding our understanding of ancestral African genetics; the global ubiquity of mixed ancestry; the revealing of African ancestry in Latin Americans that likely derived from the slave trade; and understanding of the ancestral backgrounds of APOL1 and LPL found to influence kidney disease and lipid levels, respectively, providing specific insights into disease etiology and health disparities.

  14. Gentle Africanized bees on an oceanic island.

    PubMed

    Rivera-Marchand, Bert; Oskay, Devrim; Giray, Tugrul

    2012-11-01

    Oceanic islands have reduced resources and natural enemies and potentially affect life history traits of arriving organisms. Among the most spectacular invasions in the Western hemisphere is that of the Africanized honeybee. We hypothesized that in the oceanic island Puerto Rico, Africanized bees will exhibit differences from the mainland population such as for defensiveness and other linked traits. We evaluated the extent of Africanization through three typical Africanized traits: wing size, defensive behavior, and resistance to Varroa destructor mites. All sampled colonies were Africanized by maternal descent, with over 65% presence of European alleles at the S-3 nuclear locus. In two assays evaluating defense, Puerto Rican bees showed low defensiveness similar to European bees. In morphology and resistance to mites, Africanized bees from Puerto Rico are similar to other Africanized bees. In behavioral assays on mechanisms of resistance to Varroa, we directly observed that Puerto Rican Africanized bees groomed-off and bit the mites as been observed in other studies. In no other location, Africanized bees have reduced defensiveness while retaining typical traits such as wing size and mite resistance. This mosaic of traits that has resulted during the invasion of an oceanic island has implications for behavior, evolution, and agriculture.

  15. Gentle Africanized bees on an oceanic island

    PubMed Central

    Rivera-Marchand, Bert; Oskay, Devrim; Giray, Tugrul

    2012-01-01

    Oceanic islands have reduced resources and natural enemies and potentially affect life history traits of arriving organisms. Among the most spectacular invasions in the Western hemisphere is that of the Africanized honeybee. We hypothesized that in the oceanic island Puerto Rico, Africanized bees will exhibit differences from the mainland population such as for defensiveness and other linked traits. We evaluated the extent of Africanization through three typical Africanized traits: wing size, defensive behavior, and resistance to Varroa destructor mites. All sampled colonies were Africanized by maternal descent, with over 65% presence of European alleles at the S-3 nuclear locus. In two assays evaluating defense, Puerto Rican bees showed low defensiveness similar to European bees. In morphology and resistance to mites, Africanized bees from Puerto Rico are similar to other Africanized bees. In behavioral assays on mechanisms of resistance to Varroa, we directly observed that Puerto Rican Africanized bees groomed-off and bit the mites as been observed in other studies. In no other location, Africanized bees have reduced defensiveness while retaining typical traits such as wing size and mite resistance. This mosaic of traits that has resulted during the invasion of an oceanic island has implications for behavior, evolution, and agriculture. PMID:23144660

  16. American diagnostic radiology residency and fellowship programmes.

    PubMed

    Rumack, Carol Masters

    2011-03-01

    American Diagnostic Radiology Residency and Fellowship programmes are Graduate Medical Education programmes in the United States (US) equivalent to the Postgraduate Medical Education programmes in Singapore. Accreditation Council for Graduate Medical Education (ACGME) accredited diagnostic radiology residency programmes require 5 years total with Post Graduate Year (PGY) 1 year internship in a clinical specialty, e.g. Internal Medicine following medical school. PGY Years 2 to 5 are the core years which must include Radiology Physics, Radiation Biology and rotations in 9 required subspecialty rotations: Abdominal, Breast, Cardiothoracic, Musculoskeletal, Neuroradiology, Nuclear and Paediatric Radiology, Obstetric & Vascular Ultrasound and Vascular Interventional Radiology. A core curriculum of lectures must be organised by the required 9 core subspecialty faculty. All residents (PGY 2 to 4) take a yearly American College of Radiology Diagnostic In-Training Examination based on national benchmarks of medical knowledge in each subspecialty. Because the American Board of Radiology (ABR) examinations are changing, until 2012, residents have to take 3 ABR examinations: (i) ABR physics examination in the PGY 2 to 3 years, (ii) a written examination at the start of the PGY 5 year and (iii) an oral exam at the end of the PGY 5 year. Beginning in 2013, there will be only 2 examinations: (i) the physics and written examinations after PGY 4 will become a combined core radiology examination. Beginning in 2015, the final certifying examination will be given 15 months after the completion of residency. After residency, ACGME fellowships in PGY 6 are all one-year optional programmes which focus on only one subspecialty discipline. There are 4 ACGME accredited fellowships which have a Board Certifi cation Examination: Neuroradiology, Nuclear, Paediatric and Vascular Interventional Radiology. Some ACGME fellowships do not have a certifying examination: Abdominal, Endovascular

  17. The ESA Space Situational Awareness Preparatory Programme

    NASA Astrophysics Data System (ADS)

    Bobrinsky, Nicolas

    A new ESA Programme on Space Situational Awareness (SSA) has been approved during the ESA Council at Ministerial level in November 2008. A preparatory phase is in progress, covering the timeframe 2009 -2012. It concentrates on the architectural design of the SSA System, its governance and data policy, as well as on the provision of precursor services based on the federation of existing National and European assets. A continuation of the SSA programme will be proposed at the next Ministerial Council for the years 2012 and onwards. The SSA Preparatory Programme covers three distinct segments, namely: -Space Surveillance and Tracking of artificial objects orbiting the Earth -Space Weather -Near Earth Objects Each of the above segments has a strong relation with Science and is supported by specific RD Programmes at National, EC and ESA levels. In this paper, the scientific aspects of the three SSA Segments are outlined and the following main topics developed: • Space Surveillance: statistical models of the evolution of the space debris population in Earth-bound orbits, study of active mitigation measures, impact analysis, tracking and char-acterisation principles based on radar and optical techniques. • Space Weather: awareness of the natural space environment, detection and forecasting of space weather effects and interferences, analysis of appropriate ground and space-based sensors for the monitoring of the Sun, the solar wind, the radiation belts, the magnetosphere and the ionosphere. • Near Earth Objects (NEOs): methods for determination of physical characteristics of newly discovered objects, study of appropriate sensors based on radar and optical techniques, iden-tification and ranking of collision risks of NEOs with the Earth, study of possible mitigation measures (e.g. Don Quichotes project). The research topics undertaken during the preparatory programme, as well as those foreseen during the next phase, possibly with a strong international cooperation

  18. Unsustainable fuelwood extraction from South African savannas

    NASA Astrophysics Data System (ADS)

    Wessels, K. J.; Colgan, M. S.; Erasmus, B. F. N.; Asner, G. P.; Twine, W. C.; Mathieu, R.; van Aardt, J. A. N.; Fisher, J. T.; Smit, I. P. J.

    2013-03-01

    Wood and charcoal supply the majority of sub-Saharan Africa’s rural energy needs. The long-term supply of fuelwood is in jeopardy given high consumption rates. Using airborne light detection and ranging (LiDAR), we mapped and investigated savanna aboveground biomass across contrasting land uses, ranging from densely populated communal areas to highly protected areas in the Lowveld savannas of South Africa. We combined the LiDAR observations with socio-economic data, biomass production rates and fuelwood consumption rates in a supply-demand model to predict future fuelwood availability. LiDAR-based biomass maps revealed disturbance gradients around settlements up to 1.5 km, corresponding to the maximum distance walked to collect fuelwood. At current levels of fuelwood consumption (67% of households use fuelwood exclusively, with a 2% annual reduction), we calculate that biomass in the study area will be exhausted within thirteen years. We also show that it will require a 15% annual reduction in consumption for eight years to a level of 20% of households using fuelwood before the reduction in biomass appears to stabilize to sustainable levels. The severity of dwindling fuelwood reserves in African savannas underscores the importance of providing affordable energy for rural economic development.

  19. Entrepreneurial training for girls empowerment in Lesotho: A process evaluation of a model programme

    PubMed Central

    Berry, Mary O'Neill; Kuriansky, Judy; Lytle, Megan; Vistman, Bozhena; Mosisili, ‘Mathato S.; Hlothoane, Lieketso; Matlanyane, Mapeo; Mokobori, Thabang; Mosuhli, Silas; Pebane, Jane

    2014-01-01

    A Girls Empowerment Programme held in 2010 in Lesotho, Sub-Saharan Africa, focused on HIV/AIDS risk reduction and prevention, life skills and entrepreneurial training (income-generating activities). Entrepreneurial training was a crucial part of equipping the camp attendees with basic skills to help them develop sustainable livelihoods. Such skills and financial independence are essential to enable rural girls to complete their secondary schooling (in a fee-based educational system) and to pursue a career, as well as to further help them be less susceptible to transactional sex and its significant risks. The results of a brief process evaluation with some nested supporting data showed considerable improvement in the girls' knowledge about income-generating activities. In addition, almost half of the camp attendees participated in further entrepreneurial training and about half of these girls went on to develop small businesses. Replication of this model of camp training is recommended and being explored in other African countries. PMID:25505804

  20. Programme science research on medical male circumcision scale-up in sub-Saharan Africa.

    PubMed

    Gray, Ronald H; Wawer, Maria J; Kigozi, Godfrey

    2013-08-01

    Three randomised trials demonstrate that voluntary medical male circumcision (MMC) reduces male HIV acquisition by 50-60%, and post-trial surveillance has shown that the effects are long lasting. Scale-up of services has been initiated in 14 high-priority sub-Saharan African countries with high rates of HIV and low prevalence of MMC. However, circumcision coverage in the region remains low. Challenges to MMC rollout include suboptimal demand among higher-risk men, the need to expand access and reduce costs of MMC through personnel task shifting and task sharing, assuring and maintaining a high quality of service provision, and the testing and introduction of non-surgical devices. In addition, early infant male circumcision has not been adequately evaluated in Africa. Here, we describe challenges to implementation and discuss the ongoing and future role of implementation and programme science in addressing such challenges.

  1. African dust outbreaks over the Mediterranean Basin during 2001-2011: concentrations, phenomenology and trends

    NASA Astrophysics Data System (ADS)

    Pey, Jorge; Querol, Xavier; Alastuey, Andres; Forastiere, Franceso; Stafoggia, Massimo

    2013-04-01

    Concentrations, phenomenology and trends of African dust outbreaks over the whole Mediterranean Basin werestudied on an 11-year period (2001-2011). This work has been performed in the context of the MED-PARTICLES (LIFE programme, EU) project, devoted to quantify short-term health effects of particulate matter over the Mediterranean region by distinguishing different particle sizes, chemical components and sources, with emphasis in the effects of African dust. In order to evaluate conduct this investigation, PM10 data from 19 regional and suburban background sites West to East in the Mediterranean area were compiled. After identifying the daily occurrence of African dust outbreaks, a methodology for estimating natural dust contributions on daily PM10 concentrations was applied. Our findings point out that African dust outbreaks are sensibly more frequent in southern sitesacross the Mediterranean, from 30 to 37 % of the annual days, whereas they occur less than 20% of the annual days in northern sites. The central Mediterranean emerges as a transitional area, with slightly higher frequency of dust episodes in its lower extreme when compared to similar latitudinal positions in western and eastern sides of the Basin. A decreasing south to north gradient of African dust contribution to PM10, driven by the latitudinal position of the monitoring sites at least 25°E westwards across the Basin,is patent across the Mediterranean. From 25°E eastwards, higher annual dust contributions are encountered due to the elevated annual occurrence of severe episodesof dust but also because of inputs from Middle Eastern deserts. Concerning seasonality patterns and intensity characteristics, a clear summer prevalence is observed in the western part, with low occurrence of severe episodes (daily dust averages over 100 µg m-3 in PM10); no seasonal trend is detected in the central region, with moderate-intensity episodes; and significantly higher contributions are common in autumn

  2. "Cosmic Vision": the new ESA Science Programme

    NASA Astrophysics Data System (ADS)

    2002-05-01

    The outcome of the ESA Council at Ministerial level held in Edinburgh in November 2001 was not as positive as expected for the Agency's Science Programme. It appeared that the money made available would not be sufficient to carry out the Long Term Programme approved by the Science Programme Committee in October 2000, based on financial assumptions approved by the same Committee in Bern in May 1999. The resources granted in Edinburgh taken at their face value meant the cancellation of a mission (e.g. GAIA). At the conclusion of the exercise, following extensive consultations with all its partners, the Executive could propose a revised plan, which not only maintained the missions approved in October 2000, but added the Eddington mission in addition. The new plan, strongly endorsed by the Science Programme Committee on the occasion of its 99th meeting, contains the following missions, listed by production groups: Astrophysics Group 1: XMM-Newton (1999), INTEGRAL (2002). X and Gamma Ray Observatories (studying the 'violent' universe) Group 2: Herschel, exploring the infrared and microwave universe; Planck, to study the cosmic microwave background; Eddington, searching for extra-solar planets and studying the stellar seismology. (The three missions will be launched in the 2007-2008 timeframe.) Group 3: GAIA, the ultimate galaxy mapper (to be launched no later than 2012). Missions will follow in the same group after 2012. Solar System Science: Group 1:Rosetta, a trip to a comet (2003); Mars Express, a Mars orbiter carrying the Beagle2 lander (2003); (Venus Express, a Venus orbiter, would have been in this group.) Group 2: SMART-1, which will demonstrate solar propulsion technology while on its way to the Moon (2003); BepiColombo, a mission to Mercury, Solar Orbiter, a mission to take a closer look at the Sun (missions to be launched in 2011-2012). Fundamental Physics missions: (one group only) STEP (2005) the 'equivalence principle' test, SMART2, a technology

  3. Some innovative programmes in Astronomy education

    NASA Astrophysics Data System (ADS)

    Babu, G. S. D.; Sujatha, S.

    In order to inculcate a systematic scientific awareness of the subject of Astronomy among the students and to motivate them to pursue careers in Astronomy and Astrophysics, various innovative educational programmes have been designed at MPBIFR. Among them, the main programme is termed as the ``100-hour Certificate Course in Astronomy and Astrophysics'' which has been designed basically for the students of the undergraduate level of B.Sc. and B.E. streams. The time duration of the 100 hours in this course is partitioned as 36 hours of classroom lectures, 34 hours of practicals and field trips and the remaining 30 hours being dedicated to dissertation writing and seminar presentations by the students. In addition, after the 100-hour course, the students have the option to take up specialized advance courses in the topics of Astrobiology, Astrochemistry, Radio Astronomy, Solar Astronomy and Cosmology as week-end classes. These courses are at the post graduate level and are covered in a span of 18 to 20 hours spread over a period of 9 to 10 weeks. As a preparatory programme, short-term introductory courses in the same subject are conducted for the high school students during the summer vacation period. Along with this, a three-week programme in basic Astronomy is also designed as an educational package for the general public. The students of these courses have the opportunity of being taken on field trips to various astronomical centers as well as the Radio, Solar and the Optical Observatories as part of their curriculum. The guided trips to the ISRO’s Satellite Centre at Bangalore and the Satellite Launching Station at SHAR provide high degree of motivation apart from giving thrilling experiences to the students. Further, the motivated students are encouraged to involve themselves in regular research programmes in Astronomy at MPBIFR for publishing research papers in national and international journals. The teaching and mentoring faculty for all these programmes

  4. Prevalence and correlates of substance use among school children in six African countries.

    PubMed

    Peltzer, Karl

    2009-10-01

    An increasing trend of noncommunicable diseases is a worldwide phenomenon, also including the developing countries. Few studies focus on adolescents' substance use in relation to mental distress and protective factors in African countries. The purpose of this study was to assess the prevalence and correlates (mental distress and protective factors) of substance use among school-going adolescents in six African countries. The sample included 20,765 students aged from 13 to 15 years from six African countries (Kenya, Namibia, Swaziland, Uganda, Zambia, Zimbabwe), chosen by a two-stage cluster sample design to represent all students in grades 6, 7, 8, 9, and 10 in each country. The measure used was part of the Global School-Based Health Survey (GSHS) questionnaire, including various domains of health behaviour. Results indicate a prevalence of 12.6% tobacco use (past month), 6.6% risky alcohol use (two or more per day for at least 20 days or more in the past month), and 10.5% of illicit drug use (three or more times ever) in school-going adolescents in six African countries. School truancy, loneliness, sleeping problems, sadness, suicidal ideation, suicide plans, and poverty were associated with substance use (tobacco, alcohol, illicit drugs), while school attendance and parental supervision and connectedness were protective factors for substance use, and peer support protective for tobacco use. It is concluded that tobacco use, risky drinking and illicit drug use were common, clustered together and were associated with school truancy, mental distress, and lack of parental and peer support among adolescent African school children. These findings stress the need for early and integrated prevention programmes.

  5. Consumer behaviours: Teaching children to save energy

    NASA Astrophysics Data System (ADS)

    Grønhøj, Alice

    2016-08-01

    Energy-saving programmes are increasingly targeted at children to encourage household energy conservation. A study involving the assignment of energy-saving interventions to Girl Scouts shows that a child-focused intervention can improve energy-saving behaviours among children and their parents.

  6. An Analysis of Ethical Considerations in Programme Design Practice

    ERIC Educational Resources Information Center

    Govers, Elly

    2014-01-01

    Ethical considerations are inherent to programme design decision-making, but not normally explicit. Nonetheless, they influence whose interests are served in a programme and who benefits from it. This paper presents an analysis of ethical considerations made by programme design practitioners in the context of a polytechnic in Aotearoa/New Zealand.…

  7. Silos to Symphonies? Hopes and Challenges Implementing Multicultural Programme Infusion

    ERIC Educational Resources Information Center

    Liu, Laura B.; Milman, Natalie B.

    2013-01-01

    The need to infuse multicultural education (ME) across teacher preparation programmes is well documented by research, yet institutions are at very different stages in this endeavour. While most programmes demonstrate a segregated approach to ME, confining diversity to specialty courses, ME programme infusion places diversity, equity and social…

  8. The Rainbow Reading Programme: A Review 20 Years on

    ERIC Educational Resources Information Center

    Dobson, Emma

    2013-01-01

    It has been 20 years since the Rainbow Reading programme was developed and trialled by its New Zealand creator, Meryl-Lynn Pluck. Rainbow Reading is an audio-facilitated reading programme, and is based on the method of assisted repeated reading. The programme is designed to provide older students reading below their chronological age with the…

  9. A Water Quality Monitoring Programme for Schools and Communities

    ERIC Educational Resources Information Center

    Spellerberg, Ian; Ward, Jonet; Smith, Fiona

    2004-01-01

    A water quality monitoring programme for schools is described. The purpose of the programme is to introduce school children to the concept of reporting on the "state of the environment" by raising the awareness of water quality issues and providing skills to monitor water quality. The programme is assessed and its relevance in the…

  10. "We Are Family": Maori Success in Foundation Programmes

    ERIC Educational Resources Information Center

    McMurchy-Pilkington, Colleen

    2013-01-01

    This paper considers the question: What constitutes an optimal learning environment for Maori learners in foundation programmes? Using Kaupapa Maori methodology, nearly 100 adult Maori (Indigenous) students in Aotearoa/New Zealand were interviewed from a range of tertiary providers of foundation programmes. State-funded foundation programmes that…

  11. A Mathematics Support Programme for First-Year Engineering Students

    ERIC Educational Resources Information Center

    Hillock, Poh Wah; Jennings, Michael; Roberts, Anthony; Scharaschkin, Victor

    2013-01-01

    This article describes a mathematics support programme at the University of Queensland, targeted at first-year engineering students identified as having a high risk of failing a first-year mathematics course in calculus and linear algebra. It describes how students were identified for the programme and the main features of the programme. The…

  12. Diploma Disease in Ghanaian Distance Education Upgrading Programmes for Teachers

    ERIC Educational Resources Information Center

    Mereku, Damian Kofi

    2014-01-01

    This research explores manifestations of "diploma disease" in distance education (DE) upgrading programmes for basic school teachers in Ghana. A survey design which included document analysis was used to explore the emphasis in the contents of the DE programme and the experiences of teachers who took the programmes. The study involved a…

  13. Conceptualising Transformation and Interrogating Elitism: The Bale Scholarship Programme

    ERIC Educational Resources Information Center

    Botsis, Hannah; Dominguez-Whitehead, Yasmine; Liccardo, Sabrina

    2013-01-01

    In this article, we consider the extent to which a scholarship programme at the University of the Witwatersrand (Wits) engages with the challenges of transformation. This scholarship programme highlights the transformative potential of a programme that focuses on excellence for a previously under-represented group, but also demonstrates how this…

  14. Key principles to improve programmes and interventions in complementary feeding.

    PubMed

    Lutter, Chessa K; Iannotti, Lora; Creed-Kanashiro, Hilary; Guyon, Agnes; Daelmans, Bernadette; Robert, Rebecca; Haider, Rukhsana

    2013-09-01

    Although there are some examples of successful complementary feeding programmes to promote healthy growth and prevent stunting at the community level, to date there are few, if any, examples of successful programmes at scale. A lack of systematic process and impact evaluations on pilot projects to generate lessons learned has precluded scaling up of effective programmes. Programmes to effect positive change in nutrition rarely follow systematic planning, implementation, and evaluation (PIE) processes to enhance effectiveness over the long term. As a result a set of programme-oriented key principles to promote healthy growth remains elusive. The purpose of this paper is to fill this gap by proposing a set of principles to improve programmes and interventions to promote healthy growth and development. Identifying such principles for programme success has three requirements: rethinking traditional paradigms used to promote improved infant and young child feeding; ensuring better linkages to delivery platforms; and, improving programming. Following the PIE model for programmes and learning from experiences from four relatively large-scale programmes described in this paper, 10 key principles are identified in the areas of programme planning, programme implementation, programme evaluation, and dissemination, replication, and scaling up. Nonetheless, numerous operational research questions remain, some of which are highlighted in this paper.

  15. Programmes of Educational Technology in China: Looking Backward, Thinking Forward

    ERIC Educational Resources Information Center

    Fuyin, Xu; Jianli, Jiao

    2010-01-01

    There is a history of programmes in educational technology in colleges and universities in China going back about 70 years. This paper briefly reviews the developmental history of the educational technology programme in China, elaborates the status-quo of the programme and looks ahead into the future trends of educational technology development in…

  16. A Teacher Competence Development Programme for Supporting Students' Reflection Skills

    ERIC Educational Resources Information Center

    Dekker-Groen, Agaath M.; van der Schaaf, Marieke F.; Stokking, Karel M.

    2013-01-01

    This study aimed to evaluate a training programme for Dutch teachers in six institutes for nursing education to support students' reflection skills. The research question was: what are the feasibility, quality and effects of the programme? The training programme focused on four competences of teachers regarding instructing, guiding, giving…

  17. Informing New String Programmes: Lessons Learned from an Australian Experience

    ERIC Educational Resources Information Center

    Murphy, Fintan; Rickard, Nikki; Gill, Anneliese; Grimmett, Helen

    2011-01-01

    Although there are many examples of notable string programmes there has been relatively little comparative analysis of these programmes. This paper examines three benchmark string programmes (The University of Illinois String Project, The Tower Hamlets String Teaching Project and Colourstrings) alongside Music4All, an innovative string programme…

  18. A Programmable Calculator Activity, x = 1/x + 1.

    ERIC Educational Resources Information Center

    Snover, Stephen L.; Spikell, Mark A.

    An activity for secondary schools is presented and discussed which may be explored with a programmable calculator. The activity is non-standard and could not be easily explored without the use of a programmable calculator. Related activities are also discussed. Flow charts and programs for different programmable calculators are presented. (MP)

  19. 21 CFR 870.1750 - External programmable pacemaker pulse generator.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false External programmable pacemaker pulse generator... External programmable pacemaker pulse generator. (a) Identification. An external programmable pacemaker pulse generators is a device that can be programmed to produce one or more pulses at...

  20. 21 CFR 870.1750 - External programmable pacemaker pulse generator.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false External programmable pacemaker pulse generator... External programmable pacemaker pulse generator. (a) Identification. An external programmable pacemaker pulse generators is a device that can be programmed to produce one or more pulses at...

  1. 21 CFR 870.1750 - External programmable pacemaker pulse generator.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false External programmable pacemaker pulse generator... External programmable pacemaker pulse generator. (a) Identification. An external programmable pacemaker pulse generators is a device that can be programmed to produce one or more pulses at...

  2. 21 CFR 870.1750 - External programmable pacemaker pulse generator.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false External programmable pacemaker pulse generator... External programmable pacemaker pulse generator. (a) Identification. An external programmable pacemaker pulse generators is a device that can be programmed to produce one or more pulses at...

  3. 21 CFR 870.1750 - External programmable pacemaker pulse generator.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false External programmable pacemaker pulse generator... External programmable pacemaker pulse generator. (a) Identification. An external programmable pacemaker pulse generators is a device that can be programmed to produce one or more pulses at...

  4. Learning in and beyond Small Business Advisory Programmes

    ERIC Educational Resources Information Center

    Parker, Rachel Louise; Hine, Damian

    2012-01-01

    The purpose of this paper is to analyse how participants learn in small business advisory programmes and to explore the impact of these learning programmes on the development of reflective learning dispositions in participants. The research involves two case studies of small business advisory programmes in Queensland, a state of Australia. One…

  5. Conflict and human African trypanosomiasis.

    PubMed

    Berrang-Ford, Lea; Lundine, Jamie; Breau, Sebastien

    2011-02-01

    Human African Trypanosomiasis (HAT) has reemerged in sub-Saharan Africa as a disease of major public health importance. The success of HAT elimination in sub-Saharan Africa is subject to the feasibility of controlling, eliminating, or mitigating the determinants of incidence in affected countries. Conflict has been widely recognized and cited as a contributing factor to the resurgence of HAT in many countries, as well as to continuing HAT incidence in politically unstable and resource-poor regions. Despite extensive anecdotal and qualitative recognition of the role of conflict, there has been no quantitative research of this topic at the population level in affected African countries. We characterize the qualitative and quantitative associations between HAT incidence and conflict-related processes in HAT-affected African countries over the past 30 years. HAT and conflict-related data were collected for 35 affected countries in sub-Saharan Africa for the years 1976-2004. Descriptive and univariate inferential statistics, as well as negative binomial regression modeling, are used to assess the associations between HAT and conflict. A space-time scan statistic is used to identify significant incidence clusters. Clusters of HAT incidence over the past 30 years have predominantly coincided with periods of conflict or socio-political instability. HAT cases occurred significantly more often in countries and during years with conflict, high political terror, and internationalized civil war. The results indicate a lag period between the start of conflict events and a peak in incidence of approximately 10 years. We recommend explicit consideration and quantification of socio-political measures such as conflict and terror indices in GIS (Geographic Information Systems)-based risk assessments for HAT policy and intervention.

  6. Hydrogenotrophic microbiota distinguish native Africans from African and European Americans.

    PubMed

    Nava, Gerardo M; Carbonero, Franck; Ou, Junhai; Benefiel, Ann C; O'Keefe, Stephen J; Gaskins, H Rex

    2012-06-01

    Reduced susceptibility to sporadic colorectal cancer in native Africans (NA) is correlated with low consumption of animal products and greater microbial production of colonic methane. In this context, two hydrogenotrophic microbial groups are of interest, methanogenic Archaea (MA) utilizing H2 to produce methane and sulfate-reducing bacteria (SRB) generating hydrogen sulfide, which has been linked with chronic inflammatory disorders of the colon. In the present study, stool samples from NA, consuming a diet high in resistant starch and low in animal products, and from African Americans (AA) and European Americans (EA), both consuming a typical Western diet, were examined for genetic diversity and structure of Archaea, MA and SRB communities. In general, a greater proportion of NA than AA and EA harboured the full range of targeted hydrogenotrophic groups. Terminal restriction fragment length polymorphism analysis of 16S rRNA genes and specific functional genes, combined with multivariate statistical analyses, revealed that NA harboured more diverse and different Archaea and MA populations than AA and EA. Also, NA harboured significantly distinct SRB populations compared with AA and EA. Taken together, these data are consistent with diet selecting for distinct hydrogenotrophic microbiota.

  7. France: Africans and the French Revolution.

    ERIC Educational Resources Information Center

    Fatunde, Tunde

    1989-01-01

    The French Revolution had profound and long-term effects for Africans, both in Africa and throughout the Western hemisphere. Revolutionary leaders not only opposed the emancipation of slaves in French territories but supported an intensified slave trade, sparking numerous rebellions. French exploitation of Africans extended well into the twentieth…

  8. African (Black) Psychology: Issues and Synthesis.

    ERIC Educational Resources Information Center

    Baldwin, Joseph A.

    1986-01-01

    Reviews the recent attempts of Black psychologists and social scientists to formulate a conceptual-operational framework for the study of psychological phenomena as they bear on the cultural-survival conditions of Black-African people. Outlines issues and problems in the attempt to define African (Black) psychology and discusses its relation to…

  9. Kunta Kinte's Struggle to be African

    ERIC Educational Resources Information Center

    Courlander, Harold

    1986-01-01

    This article reveals the differences between the character Kunta Kinte and the historical record concerning African males in the preslavery period. Kunta's non-African behaviors include displays of blind anger and rage, prudishness, and actions unknown in his Mandinka culture. These represent the many misrepresentations and ambiguities in Alex…

  10. Multicultural Curriculum: African American Children's Literature.

    ERIC Educational Resources Information Center

    Harris, Violet J.

    1991-01-01

    Traces and analyzes the history of African American children's literature defined as "culturally conscious," an authentic body of literature written about and for African American children. Discusses the current status of this literature and indicates a change in focus in the last century. Authors' perspectives, and the implications for…

  11. African American Undergraduates and the Academic Library

    ERIC Educational Resources Information Center

    Whitmire, Ethelene

    2006-01-01

    This study examines the academic library experiences of African American undergraduates attending a research university in the Midwest. Data collection techniques included questionnaires and ethnographic observations. The results indicated that African American undergraduates are using the academic library primarily to read and to study with their…

  12. African Education and Globalization: Critical Perspectives

    ERIC Educational Resources Information Center

    Abdi, Ali A., Ed.; Puplampu, Korbla P., Ed.; Dei, George J. Sefa, Ed.

    2006-01-01

    Containing both theoretical discussions of globalization and specific case analyses of individual African countries, this collection of essays examines the intersections of African education and globalization with multiple analytical and geographical emphases and intentions. The 11 essays critically analyze the issues from historical, cultural,…

  13. Smoking Cessation in African-Americans.

    ERIC Educational Resources Information Center

    Ahluwalia, Jasjit S.

    1996-01-01

    Because the smoking behavior of African Americans differs considerably from that of other groups, researchers examined differences between African Americans who did and did not use the nicotine patch as an adjunct to counseling and education for smoking cessation. Results indicated the nicotine patch significantly improved six-month cessation…

  14. Genetics Home Reference: African iron overload

    MedlinePlus

    ... of a genetic condition? Genetic and Rare Diseases Information Center Frequency African iron overload is common in rural areas of central and ... more about the gene associated with African iron overload SLC40A1 Related Information What is a gene? What is a gene ...

  15. Cultural Expressions of the African American Child.

    ERIC Educational Resources Information Center

    Akbar, Na'im

    Interpretations of the differences between the African American child and the Caucasian child in North America follow two major trends. In one the differences in the African American child are viewed as deviance from the Euro-American norm and therefore inferior or pathological. In the other, the differences are viewed as deviant but adaptive…

  16. A Mirror Image African American Student Reflections

    ERIC Educational Resources Information Center

    Cannon Dawson, Candice

    2012-01-01

    This dissertation is a narrative inquiry research project that focuses on the collegiate experiences of African American students at both historically black colleges and universities (HBCUs) and predominantly white institutions (PWIs). I look at how African American college students who engage in race or culturally specific activities, the degree…

  17. Syntactic Variation in West African English.

    ERIC Educational Resources Information Center

    Bamiro, Edmund O.

    1995-01-01

    Describes syntactic variation in West African English with examples from West African English literature and identifies and describes subjectless sentences, deletion of the -ly morpheme in manner adjuncts, omission of function words, reduplication, tag questions, substitution of prepositions in idiomatic usage, and focus constructions. (53…

  18. Experiences of African American College Graduates

    ERIC Educational Resources Information Center

    Green, Aundria Chephan

    2014-01-01

    The purpose of this study was to explore the reasons that African-American alumni from a historically Black university (HBCU) and a predominantly White university (PWI) chose to attend, remain in, and graduate from college. The central research question was how do African Americans describe their college experiences? The secondary research…

  19. Hidden Education among African Americans during Slavery

    ERIC Educational Resources Information Center

    Gundaker, Grey

    2007-01-01

    Background/Context: Historical studies examine aspects of African American education in and out of school in detail (Woodson 1915, 1933, Bullock 1970, Anderson 1988, Morris 1982, Rachal 1986, Rose 1964, Webber 1978, Williams 2005). Scholars of African American literacy have noted ways that education intersects other arenas such as religion and…

  20. African Americans in the Early Republic.

    ERIC Educational Resources Information Center

    Nash, Gary B.

    2000-01-01

    Discusses five topics on African Americans that are essential to studying United States History in the years between 1760 and 1830: (1) African Americans in the Revolutionary War ; (2) the rise of free black communities; (3) early abolitionism; (4) the spread of slavery; and (5) black resistance to slavery. (CMK)