1,421 research outputs found

    Status of Maternal Mortality in Zambia: Use of Routine Data

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    Maternal mortality constitutes a major public health problem in developing countries. Although Zambia has been experiencing a decline in maternal mortality ratio (MMR) at a minimal rate, MMR still remains high, at 483 maternal deaths per 100 000 live births. Data from HMIS between 2011 and 2013 was used to analyze levels and trends of maternal mortality at national and subnational level. By yearly variation, MMR records 257/100,000 live births in 2011, (146/100,000) in 2012 and (171/100,000) in 2013. The major delivery complication was abortion which accounted for 57.4%, 55.6% and 52.6% in 2011, 2012 and 2013 respectively. Obtaining data on the magnitude of the health problem and its causes at the subnational level is vital for effective policy and program implementation and sustainability. However, improvement in skilled birth attendant and prompt efficient and enhancement routine data reporting will assist in the fight to reduce maternal mortality in Zambi

    A knowledge-based expert system for scheduling of airborne astronomical observations

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    The Kuiper Airborne Observatory Scheduler (KAOS) is a knowledge-based expert system developed at NASA Ames Research Center to assist in route planning of a C-141 flying astronomical observatory. This program determines a sequence of flight legs that enables sequential observations of a set of heavenly bodies derived from a list of desirable objects. The possible flight legs are constrained by problems of observability, avoiding flyovers of warning and restricted military zones, and running out of fuel. A significant contribution of the KAOS program is that it couples computational capability with a reasoning system

    Estudio geofísico de la corteza oceánica de la Cuenca Canaria (Atlántico Centro-Oriental)

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    [ES] El estudio combinado de datos de sísmica de reflexión de multicanal y de monocanal permite conocer la estructura de la corteza oceánica de la Cuenca Canaria y relacionarla con la historia de la expansión del fondo oceánico y las principales estructuras tectónicas formadas durante el Mesozoico en el Atlántico Central.[EN] The combined study of single and multi-channel seismic reflection data allow us to understand the structure of the Canary Basin oceanic crust and their relationship with the seafloor spreading history and main tectonic features formed during Mesozoic times on the Central Atlantic.Este trabajo es parte del estudio llevado a cabo por C.R. Ranero, bajo la dirección de E Banda, en el Instituto de Ciencias de la Tierra "Jaume Almera" del CSIC para la obtención del grado de Doctor. C.R. Ranero recibió financiación durante su estancia en el Instituto de Ciencias de la Tierra mediante unsi beca de "Formació d'Investigadors de el "Departament d'Ensenyament de la Generalitat de Catalunya".Peer reviewe

    Determinants of Active Ageing in Zambia

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    This article investigated determinants of active ageing proposed by the WHO 2002 Active Ageing Framework using data from a developing country -­‐ Zambia. Up to date, there is little or no evidence of studies conducted to answer whether or not determinants proposed by the Active Ageing Framework of 2002 apply to developing countries like Zambia. This article set out to (1) explore which of the determinants of active ageing apply to Africa and Zambia in particular and (2) the influence of HIV/AIDS on active ageing in general. A non-­‐experimental cross-­‐sectional research design was used to collect data for this article. Snowball and purposive sampling was employed since there is no available sampling frame for the aged population. The article reveals that income accessibility (Economic Determinant), functional limitations (Health Determinants), low self-­‐esteem and loneliness (Personal/Behavioural Determinants), low family and peer interactions (Social Determinants) and HIV/AIDS determine active ageing in Zambia. The article suggests focused research needed to clarify and specify the role of each determinant, as well as the interactions between determinants in the active ageing process. In fact, the framework proposes that for such studies, a life course approach is required so as to take advantage of transitions and ‘window of opportunity’ for enhancing health, participation and security at different stages. The article also recommends that policies on ageing should be structured to incorporate main determinants of active ageing to reflect the Zambian context

    Higgs boson hadronic branching ratios at the ILC

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    We present a study of the Higgs boson decay branching ratios to bbˉb\bar{b}, ccˉc\bar{c} and gluons, one of the cornerstones of the physics program at the International Linear Collider (ILC). A standard model Higgs boson of 120\,GeV mass, produced in the Higgs-strahlung process at s=250\sqrt{s} = 250\,GeV was investigated using the full detector simulation and reconstruction procedures. The analysis was performed in the framework of the Silicon Detector (SiD) concept with full account of inclusive standard model backgrounds. The selected decay modes contained two heavy flavour jets in the final state and required excellent flavour tagging through precise reconstruction of interaction and decay vertices in the detector. A new signal discrimination technique using correlations of neural network outputs was used to determine the branching ratios and estimate their uncertainties, 4.8\%, 8.4\% and 12.2\% for bbˉb\bar{b}, ccˉc\bar{c} and gluons respectively.Comment: 9 Pages, 5 figures and 5 table

    Factors associated with late antenatal care attendance in selected rural and urban communities of the copperbelt province of Zambia

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    Background: Despite antenatal care services being provided free of charge or sometimes at a minimal cost in Zambia, only 19% of women attend antenatal care by their fourth month of pregnancy, as recommended by World Health Organization (WHO). An estimated 21% of pregnant women in urban and 18% in rural districts make their first ANC visit by 4th months of pregnancy. A number of factors have been found to contribute to late initiation of Antenatal care among pregnant women and these may vary between rural and urban areas. Therefore, a study aimed at examining factors associated with late ANC attendance amongst pregnant women in selected communities of the Copperbelt Province was conducted.Methodology: A cross- sectional study using a semistructured questionnaire was conducted in selected health facilities of Mpongwe and Ndola districts. A total number of 613 women attending antenatal clinic, distributed evenly between Mpongwe rural district (51% (307/613) and Ndola urban district (49% (306/613) were included in the study. Data from the completed questionnaires was entered using Epi InfoTM 3.5.1 and finally analyzed with SPSS version 16.0.Results: The prevalence of late ANC attendance was 72.0 % (n=221) and 68.6% (n=210) in rural and urban districts respectively. However, the difference between two districts was not statistically significant [OR 0.851 (95% CI=0.6, 1.2), p=0.363]. In the rural district, nulliporous women were 59% (AOR 0.411, 95% CI 0.238, 0.758) less likely to initiate ANC late compared to multiparous women, while the proportion the urban was 48% (AOR 0.518, 95% CI 0.316, 0.848). Inadequate knowledge about ANC resulted into 2.2 times high odds for late ANC attendance (AOR 2.205, 95% CI 1.021, and 4.759) than women who had adequate knowledge in urban district. Women who fell pregnant unintentionally had a higher odds of starting ANC late in both rural [4.2 times (AOR 4.258, 95% CI 1.631, 11.119)] and urban [3.1 times (AOR 3.103, 95% CI 1.261, 7.641)] respectively. The perception of no benefits derived from commencement of ANC early was associated with 4 times (AOR 3.983, 95% CI 1.365, 11.627) likelihood of late attendance in the urban district. Compared to lack of privacy at health institutions, pregnant women in rural were 3.4 times (AOR 3.377, 95% CI 1.180, and 9.660) more likely to initiate ANC late because of long distance to health facilities. Compared to misconceptions on ANC, pregnant women in rural areas were 2.2 times (AOR 2.211 95% CI 1.049, 4.660) more likely to start ANC late because of community norm(less value attached to ANC); while in urban late ANC attendance was 2.9 times (AOR 2.899, 95% CI 1.372, 6.083) higher due to cultural beliefs than misconceptions.Conclusion: Late antenatal care attendance remains high in both rural and urban districts indicating the need for intensified and more focused utilization of resources aimed at increasing sensitization of the importance of early attendance for high risk groups, such as women with unplanned pregnancies, inadequate knowledge about ANC, cultural beliefs and women who are multiporous

    Street children’s vulnerability to HIV and sexually transmitted infections in Malawian cities

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    Background: Street children have largely been ignored in the fight against HIV and AIDS. While some initiatives exist, the nature of street life, probably has not allowed viable interventions to be implemented. However, this is a group of people that could qualify as a “most at risk” group. This study set out to explore street children’s vulnerability to sexual exploitation in the cities of Blantyre and Lilongwe in Malawi.ObjectiveThe objective for this study was to explore street children’s vulnerability to HIV and STIs infection.DesignThis qualitative study employed In-depth interviews with street children in the two main cities of Malawi. A total of 23 street children were interviewed.ResultsThe study strongly suggests that street children could be vulnerable to HIV and other sexually transmitted infections. This is due to various factors which include low knowledge levels of STI and HIV, high risk sexual practices, lack of safer place to spend their nights for both boys and girls rendering them vulnerable to sexual abuses and the use of sex as a tool to secure protection and to be accepted especially for the newcomers on the street.ConclusionsThis study highlights street children’s vulnerability to sexual exploitation which predisposes them to risk of HIV and AIDS as well as Sexually Transmitted infections. Furthermore, the street environment offers no protection against such vulnerability. There is need to explore potential and context sensitive strategies that could be used to protect street children from sexual exploitation and HIV and AIDS infection

    Case Report: A forgotten Dermatological Disease

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    No Abstrac

    Implicit-explicit higher-order time integration schemes for computations of structural dynamics with fluid-structure interaction

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    In this paper higher order implicit Runge-Kutta schemes are applied to fluid-structure interaction (FSI) simulations. A staggered approach with a structural predictor is applied to an FSI problem. The equations governing the dynamics of the structure are integrated in time by the Explicit Single Diagonal Implicit Runge-Kutta (ESDIRK) schemes and the arbitrary high order finite volume scheme is taken as the fluid solver. The performance of the ESDIRK scheme of order of convergence three to five is tested. Comparative studies with other time integration schemes which have been successfully applied to FSI problems are undertaken. Comparisons to test the performance of the scheme are carried out. The staggered approach is applied to couple the structure and the compressible fluid, therefore the added mass effect is not considered. However the influence of the structural predictors is analyzed through energy conservation

    The Importance of the Fashion Industry in the South African Tourism Context

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     The nexus of fashion and tourism is analyzed in this investigation. This study unpacks the creative event industry in the South African context, making a case for it as an emerging, and potentially powerful contributor for tourism development. Using semi-structured surveys conducted with key role players (models, agents and other related professionals) across fashion events in South Africa, the research uncovers the importance that the fashion industry has on South Africa’s tourism economy. Findings show that the creative fashion industry attracts both domestic and international crew participants, who have a high earning power and spend money on shopping and visiting local attractions. Additionally, they tend to stay longer than the traditional tourists, and visit other local destinations after the event. The study concludes that the fashion industry represents a hidden aspect of the South African event industry that must be taken seriously by destination managers in the planning and development of tourism as it has significant implications for marketing, strategy and policy
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