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Sample records for african malaria-endemic setting

  1. Population diversity and antibody selective pressure to Plasmodium falciparum MSP1 block2 locus in an African malaria-endemic setting

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    Trape Jean-François

    2009-10-01

    Full Text Available Abstract Background Genetic evidence for diversifying selection identified the Merozoite Surface Protein1 block2 (PfMSP1 block2 as a putative target of protective immunity against Plasmodium falciparum. The locus displays three family types and one recombinant type, each with multiple allelic forms differing by single nucleotide polymorphism as well as sequence, copy number and arrangement variation of three amino acid repeats. The family-specific antibody responses observed in endemic settings support immune selection operating at the family level. However, the factors contributing to the large intra-family allelic diversity remain unclear. To address this question, population allelic polymorphism and sequence variant-specific antibody responses were studied in a single Senegalese rural community where malaria transmission is intense and perennial. Results Family distribution showed no significant temporal fluctuation over the 10 y period surveyed. Sequencing of 358 PCR fragments identified 126 distinct alleles, including numerous novel alleles in each family and multiple novel alleles of recombinant types. The parasite population consisted in a large number of low frequency alleles, alongside one high-frequency and three intermediate frequency alleles. Population diversity tests supported positive selection at the family level, but showed no significant departure from neutrality when considering intra-family allelic sequence diversity and all families combined. Seroprevalence, analysed using biotinylated peptides displaying numerous sequence variants, was moderate and increased with age. Reactivity profiles were individual-specific, mapped to the family-specific flanking regions and to repeat sequences shared by numerous allelic forms within a family type. Seroreactivity to K1-, Mad20- and R033 families correlated with the relative family genotype distribution within the village. Antibody specificity remained unchanged with cumulated exposure

  2. Microsatellite Genotyping of Plasmodium vivax Isolates from Pregnant Women in Four Malaria Endemic Countries

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    Menegon, Michela; Bardají, Azucena; Martínez-Espinosa, Flor; Bôtto-Menezes, Camila; Ome-Kaius, Maria; Mueller, Ivo; Betuela, Inoni; Arévalo-Herrera, Myriam; Kochar, Swati; Kochar, Sanjay K.; Jaju, Puneet; Hans, Dhiraj; Chitnis, Chetan; Padilla, Norma; Castellanos, María Eugenia; Ortiz, Lucía; Sanz, Sergi; Piqueras, Mireia; Desai, Meghna; Mayor, Alfredo; del Portillo, Hernando; Menéndez, Clara; Severini, Carlo

    2016-01-01

    Plasmodium vivax is the most widely distributed human parasite and the main cause of human malaria outside the African continent. However, the knowledge about the genetic variability of P. vivax is limited when compared to the information available for P. falciparum. We present the results of a study aimed at characterizing the genetic structure of P. vivax populations obtained from pregnant women from different malaria endemic settings. Between June 2008 and October 2011 nearly 2000 pregnant women were recruited during routine antenatal care at each site and followed up until delivery. A capillary blood sample from the study participants was collected for genotyping at different time points. Seven P. vivax microsatellite markers were used for genotypic characterization on a total of 229 P. vivax isolates obtained from Brazil, Colombia, India and Papua New Guinea. In each population, the number of alleles per locus, the expected heterozygosity and the levels of multilocus linkage disequilibrium were assessed. The extent of genetic differentiation among populations was also estimated. Six microsatellite loci on 137 P. falciparum isolates from three countries were screened for comparison. The mean value of expected heterozygosity per country ranged from 0.839 to 0.874 for P. vivax and from 0.578 to 0.758 for P. falciparum. P. vivax populations were more diverse than those of P. falciparum. In some of the studied countries, the diversity of P. vivax population was very high compared to the respective level of endemicity. The level of inter-population differentiation was moderate to high in all P. vivax and P. falciparum populations studied. PMID:27011010

  3. Diagnostic testing of pediatric fevers: meta-analysis of 13 national surveys assessing influences of malaria endemicity and source of care on test uptake for febrile children under five years.

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    Emily White Johansson

    Full Text Available In 2010, the World Health Organization revised guidelines to recommend diagnosis of all suspected malaria cases prior to treatment. There has been no systematic assessment of malaria test uptake for pediatric fevers at the population level as countries start implementing guidelines. We examined test use for pediatric fevers in relation to malaria endemicity and treatment-seeking behavior in multiple sub-Saharan African countries in initial years of implementation.We compiled data from national population-based surveys reporting fever prevalence, care-seeking and diagnostic use for children under five years in 13 sub-Saharan African countries in 2009-2011/12 (n = 105,791. Mixed-effects logistic regression models quantified the influence of source of care and malaria endemicity on test use after adjusting for socioeconomic covariates. Results were stratified by malaria endemicity categories: low (PfPR2-1040%. Among febrile under-fives surveyed, 16.9% (95% CI: 11.8%-21.9% were tested. Compared to hospitals, febrile children attending non-hospital sources (OR: 0.62, 95% CI: 0.56-0.69 and community health workers (OR: 0.31, 95% CI: 0.23-0.43 were less often tested. Febrile children in high-risk areas had reduced odds of testing compared to low-risk settings (OR: 0.51, 95% CI: 0.42-0.62. Febrile children in least poor households were more often tested than in poorest (OR: 1.63, 95% CI: 1.39-1.91, as were children with better-educated mothers compared to least educated (OR: 1.33, 95% CI: 1.16-1.54.Diagnostic testing of pediatric fevers was low and inequitable at the outset of new guidelines. Greater testing is needed at lower or less formal sources where pediatric fevers are commonly managed, particularly to reach the poorest. Lower test uptake in high-risk settings merits further investigation given potential implications for diagnostic scale-up in these areas. Findings could inform continued implementation of new guidelines to improve access to

  4. Cost risk benefit analysis to support chemoprophylaxis policy for travellers to malaria endemic countries

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    Coutinho Francisco AB

    2011-05-01

    Full Text Available Abstract Background In a number of malaria endemic regions, tourists and travellers face a declining risk of travel associated malaria, in part due to successful malaria control. Many millions of visitors to these regions are recommended, via national and international policy, to use chemoprophylaxis which has a well recognized morbidity profile. To evaluate whether current malaria chemo-prophylactic policy for travellers is cost effective when adjusted for endemic transmission risk and duration of exposure. a framework, based on partial cost-benefit analysis was used Methods Using a three component model combining a probability component, a cost component and a malaria risk component, the study estimated health costs avoided through use of chemoprophylaxis and costs of disease prevention (including adverse events and pre-travel advice for visits to five popular high and low malaria endemic regions and malaria transmission risk using imported malaria cases and numbers of travellers to malarious countries. By calculating the minimal threshold malaria risk below which the economic costs of chemoprophylaxis are greater than the avoided health costs we were able to identify the point at which chemoprophylaxis would be economically rational. Results The threshold incidence at which malaria chemoprophylaxis policy becomes cost effective for UK travellers is an accumulated risk of 1.13% assuming a given set of cost parameters. The period a travellers need to remain exposed to achieve this accumulated risk varied from 30 to more than 365 days, depending on the regions intensity of malaria transmission. Conclusions The cost-benefit analysis identified that chemoprophylaxis use was not a cost-effective policy for travellers to Thailand or the Amazon region of Brazil, but was cost-effective for travel to West Africa and for those staying longer than 45 days in India and Indonesia.

  5. Hemoglobin E prevalence in malaria-endemic villages in Myanmar.

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    Win,Ne

    2005-04-01

    Full Text Available

    The population of Myanmar comprises 8 major indigenous races (Bamar, Kayin, Kachin, Shan, Rakhine, Mon, Chin, and Kayah. The Bamar reside in the 7 central divisions of the country, and the others reside in the 7 peripheral states that border neighboring countries, including China, Laos, and Thailand in the east and India and Bangladesh in the west. Both malaria and HbE are endemic in Myanmar, although the actual prevalence of the latter in the different indigenous races is not yet known. Hemoglobin electrophoresis was performed in 4 malaria-endemic villages, each having a different predominating indigenous race. The overall prevalence of HbE was 11.4% (52/456 villagers, ranging from 2-6% in the Kayin-predominant villages to 13.1-24.4% in the Bamar-predominant villages. Although the overall HbE prevalence in the villages studied was not significantly different from that of the general Myanmar population, this study strongly documented the influence of racial differences on the prevalence of HbE in Myanmar. To prevent and control severe thalassemia syndromes in Myanmar, extensive prevalence studies of the country?s indigenous races are suggested.

  6. Antibody reactivities to glutamate-rich peptides of Plasmodium falciparum parasites in humans from areas of different malaria endemicity

    DEFF Research Database (Denmark)

    Jakobsen, P H; Theander, T G; Hviid, L;

    1996-01-01

    in individuals from malaria-endemic areas of Sudan, Indonesia and The Gambia to study antibody responses to these peptides in donors living in areas of different malaria endemicity. IgG and IgM reactivities to the peptides increased with malaria endemicity, although there were no differences in reactivities...... to the GLURP peptide between non-exposed donors and donors living in areas of low malaria endemicity. IgG reactivities to the GLURP peptide in Sudanese adults were high one month after treatment in all adults tested, while IgG reactivities to the ABRA peptide were infrequent. IgM responses to the peptides...... in areas of low malaria endemicity....

  7. Genetic characterization of uniparental lineages in populations from Southwest Iberia with past malaria endemicity

    DEFF Research Database (Denmark)

    Pereira, Vania; Gomes, Verónica; Amorim, António

    2010-01-01

    Malaria endemicity in Southwest Iberia afforded conditions for an increase of sickle cell disease (SCD), which in the region follows a clinal pattern toward the south, where foci of high prevalence were found. SCD distribution is associated with specific geographical areas, and therefore, its...

  8. Circulating epstein-barr virus in children living in malaria-endemic areas

    DEFF Research Database (Denmark)

    Rasti, N; Falk, K I; Donati, D;

    2005-01-01

    Children living in malaria-endemic regions have high incidence of Burkitt's lymphoma (BL), the aetiology of which involves Plasmodium falciparum malaria and Epstein-Barr virus (EBV) infections. Acute malarial infection impairs the EBV-specific immune responses with the consequent increase...

  9. Prevalence of G6PD deficiency in selected populations from two previously high malaria endemic areas of Sri Lanka

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    Kapilananda, G. M. G.; Samarakoon, Dilhani; Maddevithana, Sashika; Wijesundera, Sulochana; Goonaratne, Lallindra V.; Karunaweera, Nadira D.

    2017-01-01

    Glucose-6-Phosphate Dehydrogenase (G6PD) enzyme deficiency is known to offer protection against malaria and an increased selection of mutant genes in malaria endemic regions is expected. However, anti-malarial drugs such as primaquine can cause haemolytic anaemia in persons with G6PD deficiency. We studied the extent of G6PD deficiency in selected persons attending Teaching Hospitals of Anuradhapura and Kurunegala, two previously high malaria endemic districts in Sri Lanka. A total of 2059 filter-paper blood spots collected between November 2013 and June 2014 were analysed for phenotypic G6PD deficiency using the modified WST-8/1-methoxy PMS method. Each assay was conducted with a set of controls and the colour development assessed visually as well as with a microplate reader at OD450-630nm. Overall, 142/1018 (13.95%) and 83/1041 (7.97%) were G6PD deficient in Anuradhapura and Kurunegala districts respectively. The G6PD prevalence was significantly greater in Anuradhapura when compared to Kurunegala (P0.05). Severe deficiency (<10% normal) was seen among 28/1018 (2.75%) in Anuradhapura (7 males; 21 females) and 17/1041 (1.63%) in Kurunegala (7 males; 10 females). Enzyme activity between 10–30% was observed among 114/1018 (11.20%; 28 males; 86 females) in Anuradhapura while it was 66/1041 (6.34%; 18 males; 48 females) in Kurunegala. Screening and educational programmes for G6PD deficiency are warranted in these high risk areas irrespective of gender for the prevention of disease states related to this condition. PMID:28152025

  10. Prioritization of malaria endemic zones using self-organizing maps in the Manipur state of India.

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    Murty, Upadhyayula Suryanarayana; Srinivasa Rao, Mutheneni; Misra, Sunil

    2008-09-01

    Due to the availability of a huge amount of epidemiological and public health data that require analysis and interpretation by using appropriate mathematical tools to support the existing method to control the mosquito and mosquito-borne diseases in a more effective way, data-mining tools are used to make sense from the chaos. Using data-mining tools, one can develop predictive models, patterns, association rules, and clusters of diseases, which can help the decision-makers in controlling the diseases. This paper mainly focuses on the applications of data-mining tools that have been used for the first time to prioritize the malaria endemic regions in Manipur state by using Self Organizing Maps (SOM). The SOM results (in two-dimensional images called Kohonen maps) clearly show the visual classification of malaria endemic zones into high, medium and low in the different districts of Manipur, and will be discussed in the paper.

  11. [Study on malaria vectors in malaria endemic areas of Tibet autonomous region].

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    Wu, Song; Huang, Fang; Zhou, Shui-Sen; Tang, Lin-Hua

    2012-12-01

    The malaria situation in Tibet has been in an active status and the malaria incidence reached the second in China in 2010. Malaria vector prevention and control is one of the important methods for malaria control, while the malaria vectors are still unknown in Tibet. The author summarized the past researches on malaria vectors in Tibet, so as to provide the evidence for improving malaria control investigation in malaria endemic areas of Tibet, with hopes to provide useful vector message for other researcher.

  12. RISK FOR MALARIA IN UNITED STATES DONORS DEFERRED FOR TRAVEL TO MALARIA-ENDEMIC AREAS

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    Spencer, Bryan; Steele, Whitney; Custer, Brian; Kleinman, Steven; Cable, Ritchard; Wilkinson, Susan; Wright, David

    2009-01-01

    BACKGROUND Deferral for travel to malaria-endemic areas excludes many blood donors in the United States. Most transfusion-transmitted malaria is associated with lengthy residence in malaria-endemic areas rather than routine travel. This study compares the impact of existing deferral requirements to the risk that a presenting donor with malaria travel history harbors malaria parasites under current and hypothetical alternate regulations. STUDY DESIGN AND METHODS Deferred donors from six blood centers were sampled to estimate a national cohort of donors deferred annually for malaria travel to different geographic regions. Risk for malaria infection following travel to each region, and distribution of incubation periods for each malaria species were estimated for U.S. travelers. Region-specific travel risks were used to estimate the risk that a presenting blood donor with malaria travel might asymptomatically harbor malaria parasites at different intervals following return to the United States. RESULTS Travel to Africa presents risk for malaria infection >1000 times that of travel to malaria-endemic parts of Mexico, yet Mexico accounts for >10 times as many deferred donors. Shortening the deferral period from 12 to 3 months for travelers to Mexico increases the risk of collecting a contaminated unit by only 1 unit per 57 years (sensitivity analysis, 1 every 29 - 114 years), at annual gain of >56,000 donations. CONCLUSION This study provides the first systematic appraisal of the U.S. requirements for donor qualification regarding travel to malarial areas. Consideration should be given to relaxing the guidelines for travel to very low-risk areas such as Mexico. PMID:19903290

  13. A modified Plasmodium falciparum growth inhibition assay (GIA) to assess activity of plasma from malaria endemic areas.

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    Mlambo, Godfree; Kumar, Nirbhay

    2007-02-01

    Plasma samples from patients undergoing treatment in malaria endemic countries often contain anti-malaria drugs, that may overstate effects of specific antibodies in growth inhibition assays (GIA). We describe a modified assay that uses drug resistant P. falciparum parasites (W2) that circumvents the requirement for dialyzing samples that may likely contain drugs such as chloroquine and sulfadoxine/pyrimethamine (SP).

  14. Short report: Role of viruses in Kenyan children presenting with acute encephalopathy in a malaria-endemic area

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    C.D. Schubart; N. Mturi; M.G.H.M. Beld; P.M. Wertheim; C.R.J.C. Newton

    2006-01-01

    In malaria-endemic areas, it is difficult to differentiate between cerebral malaria (CM), bacterial meningitis, and viral encephalitis. We examined the cerebrospinal fluid of 49 children who fulfilled the World Health Organization's (WHO) definition of CM and in 47 encephalopathic children, without

  15. Spatial analysis of the relationship between early childhood mortality and malaria endemicity in Malawi

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    Lawrence N. Kazembe

    2007-11-01

    Full Text Available Spatial differences in mortality have been reported in Africa amongst children under-five years of age. Risk factors contributing to this geographical variation include bio-demographic and socio-economic factors, the prevalence of infectious diseases and the variability in the quality of child health care. This paper is concerned with investigating the link between early childhood mortality and malaria risk. We used data from the Mapping Malaria Risk in Africa (MARA and Demographic and Health Survey (DHS databases to explore this relationship. The DHS survey included questions on bio-demographic and socio-economic status, complete birth histories and survival time of each child within the five years preceding the survey. Survival times were computed in months until death or until the survey was done. The malaria risk was based on prevalence data estimated at the precise DHS sampling location. A spatial Cox regression model was applied to analyze child survival, assessing the influence of both individual-specific factors, malaria endemicity and group-specific environmental factors, approximated by geographical location. Geographical location was considered at subdistrict level. Our analysis shows that although malaria endemicity is not associated with the risk of infant mortality, it is an important risk factor for child mortality. The results confirm the effects of bio-demographic and socio-economic variables (maternal education, maternal age, birth order and place of residence on infant and child mortality. The subdistrict-specific variation of infant and child mortality shows a rural-urban distinction with a relatively lower risk of mortality in main urban areas.

  16. Effectiveness and durability of Interceptor® long-lasting insecticidal nets in a malaria endemic area of central India

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    Bhatt Rajendra M

    2012-06-01

    Full Text Available Abstract Background In the present study, Interceptor®, long-lasting polyester net, 75 denier and bursting strength of minimum 250 kPa coated with alpha-cypermethrin @ 200 mg/m2 was evaluated for its efficacy in reducing the mosquito density, blood feeding inhibition and malaria incidence in a tribal dominated malaria endemic area in Chhattisgarh state, central India. Its durability, washing practices and usage pattern by the community was also assessed up to a period of three years. Methods The study was carried out in two phases. In the first phase (September 2006 to August 2007, 16 malaria endemic villages in district Kanker were randomized into three groups, viz. Interceptor net (LN, untreated polyester net (100 denier and without net. Malaria cases were detected by undertaking fortnightly surveillance by home visits and treated as per the national drug policy. Mosquito collections were made by hand catch and pyrethrum space spray methods from human dwellings once every month. Slide positivity rate (SPR and malaria incidence per 1000 population (PI were compared between the three study arms to assess the impact of use of Interceptor nets. Simultaneously, wash resistance studies were carried out in the laboratory by doing cone bioassays on Interceptor LNs washed up to 20 times. Activities undertaken in second Phase (April 2008 to October 2009 after an interval of about 18 months post-net distribution included questionnaire based surveys at every six months, i.e. 18, 24, 30 and 36 months to observe durability, usage pattern of LNs and washing practices by the community. After 36 months of field use, 30 nets were retrieved and sampled destructively for chemical analysis. Results Interceptor nets were found effective in reducing the density, parity rate and blood feeding success rate of main malaria vector Anopheles culicifacies as compared to that in untreated net and no net villages. SPR in LN villages was 3.7% as compared to 6

  17. Malaria Prevention Strategies: Adherence among Boston Area Travelers Visiting Malaria-Endemic Countries

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    Stoney, Rhett J.; Chen, Lin H.; Jentes, Emily S.; Wilson, Mary E.; Han, Pauline V.; Benoit, Christine M.; MacLeod, William B.; Hamer, Davidson H.; Barnett, Elizabeth D.

    2016-01-01

    We conducted a prospective cohort study to assess adherence to malaria chemoprophylaxis, reasons for nonadherence, and use of other personal protective measures against malaria. We included adults traveling to malaria-endemic countries who were prescribed malaria chemoprophylaxis during a pre-travel consultation at three travel clinics in the Boston area and who completed three or more surveys: pre-travel, at least one weekly during travel, and post-travel (2–4 weeks after return). Of 370 participants, 335 (91%) took malaria chemoprophylaxis at least once and reported any missed doses; 265 (79%) reported completing all doses during travel. Adherence was not affected by weekly versus daily chemoprophylaxis, travel purpose, or duration of travel. Reasons for non adherence included forgetfulness, side effects, and not seeing mosquitoes. Main reasons for declining to take prescribed chemoprophylaxis were peer advice, low perceived risk, and not seeing mosquitoes. Of 368 travelers, 79% used insect repellent, 46% used a bed net, and 61% slept in air conditioning at least once. Because travelers may be persuaded to stop taking medication by peer pressure, not seeing mosquitoes, and adverse reactions to medications, clinicians should be prepared to address these barriers and to empower travelers with strategies to manage common side effects of antimalarial medications. PMID:26483125

  18. Malaria Prevention Strategies: Adherence Among Boston Area Travelers Visiting Malaria-Endemic Countries.

    Science.gov (United States)

    Stoney, Rhett J; Chen, Lin H; Jentes, Emily S; Wilson, Mary E; Han, Pauline V; Benoit, Christine M; MacLeod, William B; Hamer, Davidson H; Barnett, Elizabeth D

    2016-01-01

    We conducted a prospective cohort study to assess adherence to malaria chemoprophylaxis, reasons for nonadherence, and use of other personal protective measures against malaria. We included adults traveling to malaria-endemic countries who were prescribed malaria chemoprophylaxis during a pre-travel consultation at three travel clinics in the Boston area and who completed three or more surveys: pre-travel, at least one weekly during travel, and post-travel (2-4 weeks after return). Of 370 participants, 335 (91%) took malaria chemoprophylaxis at least once and reported any missed doses; 265 (79%) reported completing all doses during travel. Adherence was not affected by weekly versus daily chemoprophylaxis, travel purpose, or duration of travel. Reasons for nonadherence included forgetfulness, side effects, and not seeing mosquitoes. Main reasons for declining to take prescribed chemoprophylaxis were peer advice, low perceived risk, and not seeing mosquitoes. Of 368 travelers, 79% used insect repellent, 46% used a bed net, and 61% slept in air conditioning at least once. Because travelers may be persuaded to stop taking medication by peer pressure, not seeing mosquitoes, and adverse reactions to medications, clinicians should be prepared to address these barriers and to empower travelers with strategies to manage common side effects of antimalarial medications.

  19. Antibiotic use among patients with febrile illness in a low malaria endemicity setting in Uganda

    DEFF Research Database (Denmark)

    Batwala, Vincent; Magnussen, Pascal; Nuwaha, Fred

    2011-01-01

    randomized to each diagnostic arm (diagnostic method in a defined group of patients). All 52,116 outpatients (presumptive 16,971; microscopy 17,508; and RDT 17,638) aged 5 months to ninety five years presenting with fever (by statement or measured) were included. Information from outpatients and laboratory...... patients who tested negative for malaria, 7809 (61.4%) were prescribed antibiotics in the RDT and 3749 (39.3%) in the microscopy arm. Overall the prescription of antibiotics was more common for children less than five years of age 5,388 (63%) compared to those five years and above 16798 (38...

  20. Human population, urban settlement patterns and their impact on Plasmodium falciparum malaria endemicity

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    Kabaria Caroline W

    2008-10-01

    significant differences between author-defined 'urban' and 'rural' designations in Africa, but not for the remainder of the malaria endemic world. The Global Rural Urban Mapping Project (GRUMP urban extent mask proved most accurate for mapping these author-defined rural and urban locations, and further sub-divisions of urban extents into urban and peri-urban classes enabled the effects of high population densities on malaria transmission to be mapped and quantified. Conclusion The availability of detailed, contemporary census and urban extent data for the construction of coherent and accurate global spatial population databases is often poor. These known sources of uncertainty in population surfaces and urban maps have the potential to be incorporated into future malaria burden estimates. Currently, insufficient spatial information exists globally to identify areas accurately where population density is low enough to impact upon transmission. Medical intelligence does however exist to reliably identify malaria free cities. Moreover, in Africa, urban areas that have a significant effect on malaria transmission can be mapped.

  1. Antibody responses to Rhoptry-Associated Protein-1 (RAP-1) of Plasmodium falciparum parasites in humans from areas of different malaria endemicity

    DEFF Research Database (Denmark)

    Jakobsen, P H; Kurtzhals, J A; Riley, E M;

    1997-01-01

    Plasma IgM and IgG antibody reactivities against the recombinant Plasmodium falciparum protein, Rhoptry Associated Protein-1 (rRAP-1) were measured by ELISA in individuals from Sudan, Indonesia, Kenya and The Gambia living in areas of different malaria endemicity. IgG and IgM reactivities to rRAP-1...

  2. Genotyping of chloroquine resistant Plasmodium falciparum in wild caught Anopheles minimus mosquitoes in a malaria endemic area of Assam, India.

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    Sarma, D K; Mohapatra, P K; Bhattacharyya, D R; Mahanta, J; Prakash, A

    2014-09-01

    We validated the feasibility of using Plasmodium falciparum, the human malaria parasite, DNA present in wild caught vector mosquitoes for the characterization of chloroquine resistance status. House frequenting mosquitoes belonging to Anopheles minimus complex were collected from human dwellings in a malaria endemic area of Assam, Northeast India and DNA was extracted from the head-thorax region of individual mosquitoes. Anopheles minimus complex mosquitoes were identified to species level and screened for the presence of Plasmodium sp. using molecular tools. Nested PCR-RFLP method was used for genotyping of P. falciparum based on K76T mutation in the chloroquine resistance transporter (pfcrt) gene. Three of the 27 wild caught An. minimus mosquitoes were harbouring P. falciparum sporozoites (positivity 11.1%) and all 3 were had 76T mutation in the pfcrt gene, indicating chloroquine resistance. The approach of characterizing antimalarial resistance of malaria parasite in vector mosquitoes can potentially be used as a surveillance tool for monitoring transmission of antimalarial drug resistant parasite strains in the community.

  3. Socio-cultural factors influencing insecticide treated bed net utilization in a malaria endemic city in north-central Nigeria

    Institute of Scientific and Technical Information of China (English)

    Jombo GTA; Akosu JT; Mbaawuaga EM; Gyuse AN; Enenebeaku MNO; Okwori EE; Peters EJ; Akpan S; Odey F; Etukumana EA

    2010-01-01

    Objective: To ascertain the socio-cultural factors influencing the rate of utilization of insecticide treated bed nets (ITNs) in a malaria endemic city of Makurdi, north central Nigeria. Methods:The study was cross-sectional in nature using systematic sampling method to identify households. Both quantitative and qualitative data was generated from adult women using structured and semi structured questionnaires, and focused group discussions (FGDs) to obtain information on rate and patterns of utilization of ITNs. Information such as age, educational level, marital status, awareness or otherwise of the existence of malaria, and factors influencing rate of ownership and utilization of ITNs were obtained. FGDs were used to obtain qualitative information on rate of utilization of ITNs not captured in the questionnaires. Data obtained was analysed using Epi Info 6 statistical software. Results: Among the respondents interviewed, 97.0%(2 013/2 075) were aware of existence of malaria and 87.0%of these (1 751/2 013) would associate it with mosquitoes. The rate of ownership of any bed net, ITNs and untreated bed nets (UTNs) was 25.1%, 17.0%and 8.3%, respectively. Utilization of ITNs among children was 30.0%(112/373) and UTNs 12.9%(48/373). Positive contributors to ITNs utilization were literacy, enhanced economy, experience of marriage, and being gainfully employed (P<0.05);while negative contributors were ignorance, poverty and some cultural beliefs and values. Conclusions: A more synchronized advocacy should be carried out on the potential benefits of ITNs utilization and sustained. Also ITNs should be made available to the people of the community at minimal or no cost.

  4. Malaria knowledge, attitudes and practices among migrants from malaria-endemic countries in Evrotas, Laconia, Greece, 2013.

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    Evlampidou, I; Danis, K; Lenglet, A; Tseroni, M; Theocharopoulos, Y; Panagiotopoulos, T

    2015-08-20

    Following re-emergence of malaria in Evrotas, Laconia, in 2009–12, a malaria-control programme was implemented in 2011–12 targeting migrants from malaria-endemic countries, including house-to-house active case detection, health education and distribution of mosquito protection items. In June 2013, we surveyed migrants in Evrotas to assess their malaria knowledge, attitudes and practices to guide prevention activities. We selected participants using simple random sampling and interviewed them, using structured questionnaires. We defined mosquito protection practices (MPPs) as the use of full-length clothes/topical repellent, mosquito screens, fans or air-conditioning, and insecticides. We calculated prevalence ratios (PRs) using Poisson regression and we allowed for clustering of participants in a residence. Of 654 migrants, we invited 132 and 130 participated (all men; 120 (92%) from Pakistan). Of the 130, 56 (43%) identified fever as a malaria symptom; those who were aware of this had higher level of education (PR: 3.2; 95% confidence interval (CI): 1.2–9.0). A total of 111 (85%) used insecticide-treated bednets and 95 (73%) used more than two MPPs. Poor housing conditions (warehouses/shacks: PR: 0.8; 95% CI: 0.6–0.9), were associated with use of up to two MPPs. Despite extensive interventions in Evrotas, the level of malaria awareness among migrants remained suboptimal and poor housing conditions hindered effective mosquito protection. We recommend culturally adapted health education and improvement of housing conditions to minimise the risk of new cases and re-establishment of malaria in Greece.

  5. Preliminary pharmaceutical development of antimalarial-antibiotic cotherapy as a pre-referral paediatric treatment of fever in malaria endemic areas.

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    Gaubert, Alexandra; Kauss, Tina; Marchivie, Mathieu; Ba, Boubakar B; Lembege, Martine; Fawaz, Fawaz; Boiron, Jean-Michel; Lafarge, Xavier; Lindegardh, Niklas; Fabre, Jean-Louis; White, Nicholas J; Olliaro, Piero L; Millet, Pascal; Grislain, Luc; Gaudin, Karen

    2014-07-01

    Artemether (AM) plus azithromycin (AZ) rectal co-formulations were studied to provide pre-referral treatment for children with severe febrile illnesses in malaria-endemic areas. The target profile required that such product should be cheap, easy to administer by non-medically qualified persons, rapidly effective against both malaria and bacterial infections. Analytical and pharmacotechnical development, followed by in vitro and in vivo evaluation, were conducted for various AMAZ coformulations. Of the formulations tested, stability was highest for dry solid forms and bioavailability for hard gelatin capsules; AM release from AMAZ rectodispersible tablet was suboptimal due to a modification of its micro-crystalline structure.

  6. Area effects of bednet use in a malaria-endemic area in Papua New Guinea.

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    Hii, J L; Smith, T; Vounatsou, P; Alexander, N; Mai, A; Ibam, E; Alpers, M P

    2001-01-01

    Relationships between area coverage with insecticide-free bednets and prevalence of Plasmodium falciparum were investigated in 7 community-based surveys over a 33-month period in 1990-93 in 6 villages in the Wosera area of Papua New Guinea. Spatial patterns in circumsporozoite rates for P. falciparum, P. vivax isomorphs K210 and K247, and P. malariae, and the proportions of mosquito blood meals positive for specific human, goat, cat, dog and pig antigens were determined using ELISAs. P. falciparum prevalence in humans was better explained by bednet coverage in the immediate vicinity than by personal protection alone. Circumsporozoite rates for both P. falciparum and P. vivax were also inversely related to coverage with bednets. There was some increase in zoophagy in areas with high coverage, but relatively little effect on the human blood index or on overall mosquito densities. In this setting, protracted use of untreated bednets apparently reduces sporozoite rates, and the associated effects on prevalence are greater than can be accounted for by personal protection. Even at high bednet coverage most anophelines feed on human hosts, so the decreased sporozoite rates are likely to be largely due to reduction of mosquito survival. This finding highlights the importance of local vector ecology for outcomes of bednet programmes and suggests that area effects of untreated bednets should be reassessed in other settings.

  7. Decreased motivation in the use of insecticide-treated nets in a malaria endemic area in Burkina Faso

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    Doannio Julien

    2009-07-01

    Full Text Available Abstract Background The use of insecticide-treated nets (ITN is an important tool in the Roll Back Malaria (RBM strategy. For ITNs to be effective they need to be used correctly. Previous studies have shown that many factors, such as wealth, access to health care, education, ethnicity and gender, determine the ownership and use of ITNs. Some studies showed that free distribution and public awareness campaigns increased the rate of use. However, there have been no evaluations of the short- and long-term impact of such motivation campaigns. A study carried out in a malaria endemic area in south-western Burkina Faso indicated that this increased use declined after several months. The reasons were a combination of the community representation of malaria, the perception of the effectiveness and usefulness of ITNs and also the manner in which households are organized by day and by night. Methods PermaNet 2.0® and Olyset® were distributed in 455 compounds at the beginning of the rainy season. The community was educated on the effectiveness of nets in reducing malaria and on how to use them. To assess motivation, qualitative tools were used: one hundred people were interviewed, two hundred houses were observed directly and two houses were monitored monthly throughout one year. Results The motivation for the use of bednets decreased after less than a year. Inhabitants' conception of malaria and the inconvenience of using bednets in small houses were the major reasons. Acceptance that ITNs were useful in reducing malaria was moderated by the fact that mosquitoes were considered to be only one of several factors which caused malaria. The appropriate and routine use of ITNs was adversely affected by the functional organization of the houses, which changed as between day and night. Bednets were not used when the perceived benefits of reduction in mosquito nuisance and of malaria were considered not to be worth the inconvenience of daily use. Conclusion In

  8. African Dance Aesthetics in a K-12 Dance Setting: From History to Social Justice

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    Ward, Sheila A.

    2013-01-01

    This article invites the reader to gain a deeper understanding of the aesthetics of African-based dance through the elements of tradition, transformation, and social justice. A discussion of the aesthetics of African dances within Africa and throughout the African diaspora opens the doors to present these dances in a K-12 setting, to explore a…

  9. First evaluation of glucose-6-phosphate dehydrogenase (G6PD deficiency in vivax malaria endemic regions in the Republic of Korea.

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    Youn-Kyoung Goo

    Full Text Available BACKGROUND: Glucose-6-phosphate dehydrogenase (G6PD deficiency is the most common human enzyme defect and affects more than 400 million people worldwide. This deficiency is believed to protect against malaria because its global distribution is similar. However, this genetic disorder may be associated with potential hemolytic anemia after treatment with anti-malarials, primaquine or other 8-aminoquinolines. Although primaquine is used for malaria prevention, no study has previously investigated the prevalence of G6PD variants and G6PD deficiency in the Republic of Korea (ROK. METHODS: Two commercialized test kits (Trinity G-6-PDH and CareStart G6PD test were used for G6PD deficiency screening. The seven common G6PD variants were investigated by DiaPlexC kit in blood samples obtained living in vivax malaria endemic regions in the ROK. RESULTS: Of 1,044 blood samples tested using the CareStart G6PD test, none were positive for G6PD deficiency. However, a slightly elevated level of G6PD activity was observed in 14 of 1,031 samples tested with the Trinity G-6-PDH test. Forty-nine of the 298 samples with non-specific amplification by DiaPlexC kit were confirmed by sequencing to be negative for the G6PD variants. CONCLUSIONS: No G6PD deficiency was observed using phenotypic- or genetic-based tests in individuals residing in vivax malaria endemic regions in the ROK. Because massive chemoprophylaxis using primaquine has been performed in the ROK military to kill hypnozoites responsible for relapse and latent stage vivax malaria, further regular monitoring is essential for the safe administration of primaquine.

  10. A cross-sectional analysis of traditional medicine use for malaria alongside free antimalarial drugs treatment amongst adults in high-risk malaria endemic provinces of Indonesia

    Science.gov (United States)

    Suswardany, Dwi Linna; Sibbritt, David W.; Supardi, Sudibyo; Pardosi, Jerico F.; Chang, Sungwon; Adams, Jon

    2017-01-01

    Background The level of traditional medicine use, particularly Jamu use, in Indonesia is substantial. Indonesians do not always seek timely treatment for malaria and may seek self-medication via traditional medicine. This paper reports findings from the first focused analyses of traditional medicine use for malaria in Indonesia and the first such analyses worldwide to draw upon a large sample of respondents across high-risk malaria endemic areas. Methods A sub-study of the Indonesia Basic Health Research/Riskesdas Study 2010 focused on 12,226 adults aged 15 years and above residing in high-risk malaria-endemic provinces. Logistic regression was undertaken to determine the significant associations for traditional medicine use for malaria symptoms. Findings Approximately one in five respondents use traditional medicine for malaria symptoms and the vast majority experiencing multiple episodes of malaria use traditional medicine alongside free antimalarial drug treatments. Respondents consuming traditional medicine for general health/common illness purposes every day (odds ratio: 3.75, 95% Confidence Interval: 2.93 4.79), those without a hospital in local vicinity (odds ratio: 1.31, 95% Confidence Interval: 1.10 1.57), and those living in poorer quality housing, were more likely to use traditional medicine for malaria symptoms. Conclusion A substantial percentage of those with malaria symptoms utilize traditional medicine for treating their malaria symptoms. In order to promote safe and effective malaria treatment, all providing malaria care in Indonesia need to enquire with their patients about possible traditional medicine use. PMID:28329019

  11. Assessment of an undergraduate psychiatry course in an African setting

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    Leuvennink Johan

    2008-04-01

    Full Text Available Abstract Background International reports recommend the improvement in the amount and quality of training for mental health workers in low and middle income countries. The Scotland-Malawi Mental Health Education Project (SMMHEP has been established to support the teaching of psychiatry to medical students in the University of Malawi. While anecdotally supportive medical educational initiatives appear of value, little quantitative evidence exists to demonstrate whether such initiatives can deliver comparable educational standards. This study aimed to assess the effectiveness of an undergraduate psychiatry course given by UK psychiatrists in Malawi by studying University of Malawi and Edinburgh University medical students' performance on an MCQ examination paper. Methods An undergraduate psychiatry course followed by an MCQ exam was delivered by the SMMHEP to 57 Malawi medical students. This same MCQ exam was given to 71 Edinburgh University medical students who subsequently sat their own Edinburgh University examination. Results There were no significant differences between Edinburgh students' performance on the Malawi exam and their own Edinburgh University exam. (p = 0.65. This would suggest that the Malawi exam is a comparable standard to the Edinburgh exam. Malawi students marks ranged from 52.4%–84.6%. Importantly 84.4% of Malawi students scored above 60% on their exam which would equate to a hypothetical pass by UK university standards. Conclusion The support of an undergraduate course in an African setting by high income country specialists can attain a high percentage pass rate by UK standards. Although didactic teaching has been surpassed by more novel educational methods, in resource poor countries it remains an effective and cost effective method of gaining an important educational standard.

  12. Whole cowpea meal fortified with NaFeEDTA reduces iron deficiency among Ghanaian school children in a malaria endemic area.

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    Abizari, Abdul-Razak; Moretti, Diego; Zimmermann, Michael B; Armar-Klemesu, Margaret; Brouwer, Inge D

    2012-10-01

    Cowpeas, like other legumes, contain high amounts of native iron but are rich in phytic acid (PA) and polyphenols (PP) that inhibit iron absorption. NaFeEDTA may overcome the combined inhibitory effect of PA and PP. Our objective was to test the efficacy of NaFeEDTA-fortified cowpea meal in improving iron status of school children in a malaria endemic area. We conducted a double-blind, controlled trial with 5- to 12-y-old school children from 2 rural communities in northern Ghana (n = 241). Eligible children were randomly assigned to 2 treatment groups to receive either cowpea meal fortified with 10 mg Fe/meal as NaFeEDTA, or an identical but nonfortified cowpea meal. Meals were provided 3 d/wk for a period of ~7 mo under strict supervision. Mass deworming and malaria antigenemia screening and treatment were carried out at baseline and 3.5 mo into the trial. Consumption of cowpea flour fortified with NaFeEDTA resulted in improvement of hemoglobin (P iron stores (P iron deficiency (ID) and iron deficiency anemia (IDA) (P rural northern Ghana.

  13. AID expression in peripheral blood of children living in a malaria endemic region is associated with changes in B cell subsets and Epstein-Barr virus

    Science.gov (United States)

    Wilmore, Joel R; Asito, Amolo S; Wei, Chungwen; Piriou, Erwan; Sumba, P. Odada; Sanz, Iñaki

    2015-01-01

    The development of endemic Burkitt's lymphoma (eBL) is closely associated with EBV infection and holoendemic malaria infections. The role of EBV in the development of malignancy has been studied in depth, but there is still little known about the mechanisms by which malaria affects Burkitt's lymphomagenesis. Activation induced cytidine deaminase (AID) expression is necessary for the introduction of c-myc translocations that are characteristic of BL, but a link between AID and EBV or malaria is unclear. To determine if frequency of malaria exposure leads to increased AID expression in peripheral blood mononuclear cells (PBMC) we examined two cohorts of children in western Kenya with endemic and sporadic malaria transmission dynamics. High frequency of malaria exposure led to increased expression of AID, which coincided with decreases in the IgM+ memory B cells. In the children from the malaria endemic region, the presence of a detectible EBV viral load was associated with higher AID expression compared to children with undetectable EBV, but this effect was not seen in children with sporadic exposure to malaria. This study demonstrates that intensity of malaria transmission correlates with AID expression levels in the presence of EBV suggesting that malaria and EBV infection have a synergistic effect on the development of c-myc translocations and BL. PMID:25099163

  14. Bioaccumulation of DDT Residues in Human Serum: an Historical Use of DDT Indoor Residual Spraying in Malaria Endemic Regions of Thailand

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    Punthip Teeyapant

    2014-06-01

    Full Text Available In Thailand, DDT indoor residual spraying (IRS was used to interrupt malaria transmission until it was phased out between 1995 and 1999. However, contamination by DDT and its primary metabolite, p,p'-DDE remains a serious environmental and human health concern. We investigated serum concentrations of p,p'-DDE and p,p'-DDT in Southern Thai residents living in malaria-endemic areas where IRS with DDT was applied. Levels of p,p-DDE and p,p'-DDT were measured in plasma serum of 346 participants (205 females, 141 males from Southern provinces of Thailand and from Bangkok. Serum concentrations of measured compounds were significantly higher in Southern Thai residents than general population (in Bangkok (P < 0.001. The highest geometric mean value of p,p'-DDE was 6,531 (95% CI=4,083-8,979 and 5,053 (95% CI=2,909-7,197 ng/g lipids in female and male subjects, respectively. Even though, DDT ultimately is banned for all uses, the concentration of the daughter compound p,p'-DDE was much higher in Southern subjects than in the general population. A high ratio of p,p'-DDE/p,p'-DDT indicates that the exposure is due to past rather than recent use of DDT.

  15. Got ACTs? Availability, price, market share and provider knowledge of anti-malarial medicines in public and private sector outlets in six malaria-endemic countries

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    O'Connell Kathryn A

    2011-10-01

    Full Text Available Abstract Background Artemisinin-based combination therapy (ACT is the first-line malaria treatment throughout most of the malaria-endemic world. Data on ACT availability, price and market share are needed to provide a firm evidence base from which to assess the current situation concerning quality-assured ACT supply. This paper presents supply side data from ACTwatch outlet surveys in Benin, the Democratic Republic of Congo (DRC, Madagascar, Nigeria, Uganda and Zambia. Methods Between March 2009 and June 2010, nationally representative surveys of outlets providing anti-malarials to consumers were conducted. A census of all outlets with the potential to provide anti-malarials was conducted in clusters sampled randomly. Results 28,263 outlets were censused, 51,158 anti-malarials were audited, and 9,118 providers interviewed. The proportion of public health facilities with at least one first-line quality-assured ACT in stock ranged between 43% and 85%. Among private sector outlets stocking at least one anti-malarial, non-artemisinin therapies, such as chloroquine and sulphadoxine-pyrimethamine, were widely available (> 95% of outlets as compared to first-line quality-assured ACT ( Conclusions These standardized, nationally representative results demonstrate the typically low availability, low market share and high prices of ACT, in the private sector where most anti-malarials are accessed, with some exceptions. The results confirm that there is substantial room to improve availability and affordability of ACT treatment in the surveyed countries. The data will also be useful for monitoring the impact of interventions such as the Affordable Medicines Facility for malaria.

  16. Understanding Private Sector Antimalarial Distribution Chains: A Cross-Sectional Mixed Methods Study in Six Malaria-Endemic Countries

    Science.gov (United States)

    Palafox, Benjamin; Patouillard, Edith; Tougher, Sarah; Goodman, Catherine; Hanson, Kara; Kleinschmidt, Immo; Rueda, Sergio Torres; Kiefer, Sabine; O’Connell, Kathryn A.; Zinsou, Cyprien; Phok, Sochea; Akulayi, Louis; Arogundade, Ekundayo; Buyungo, Peter; Mpasela, Felton; Chavasse, Desmond

    2014-01-01

    Background Private for-profit outlets are important treatment sources for malaria in most endemic countries. However, these outlets constitute only the last link in a chain of businesses that includes manufacturers, importers and wholesalers, all of which influence the availability, price and quality of antimalarials patients can access. We present evidence on the composition, characteristics and operation of these distribution chains and of the businesses that comprise them in six endemic countries (Benin, Cambodia, Democratic Republic of Congo, Nigeria, Uganda and Zambia). Methods and Findings We conducted nationally representative surveys of antimalarial wholesalers during 2009–2010 using an innovative sampling approach that captured registered and unregistered distribution channels, complemented by in-depth interviews with a range of stakeholders. Antimalarial distribution chains were pyramidal in shape, with antimalarials passing through a maximum of 4–6 steps between manufacturer and retailer; however, most likely pass through 2–3 steps. Less efficacious non-artemisinin therapies (e.g. chloroquine) dominated weekly sales volumes among African wholesalers, while volumes for more efficacious artemisinin-based combination therapies (ACTs) were many times smaller. ACT sales predominated only in Cambodia. In all countries, consumer demand was the principal consideration when selecting products to stock. Selling prices and reputation were key considerations regarding supplier choice. Business practices varied across countries, with large differences in the proportions of wholesalers offering credit and delivery services to customers, and the types of distribution models adopted by businesses. Regulatory compliance also varied across countries, particularly with respect to licensing. The proportion of wholesalers possessing any up-to-date licence from national regulators was lowest in Benin and Nigeria, where vendors in traditional markets are important

  17. Understanding private sector antimalarial distribution chains: a cross-sectional mixed methods study in six malaria-endemic countries.

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    Benjamin Palafox

    Full Text Available BACKGROUND: Private for-profit outlets are important treatment sources for malaria in most endemic countries. However, these outlets constitute only the last link in a chain of businesses that includes manufacturers, importers and wholesalers, all of which influence the availability, price and quality of antimalarials patients can access. We present evidence on the composition, characteristics and operation of these distribution chains and of the businesses that comprise them in six endemic countries (Benin, Cambodia, Democratic Republic of Congo, Nigeria, Uganda and Zambia. METHODS AND FINDINGS: We conducted nationally representative surveys of antimalarial wholesalers during 2009-2010 using an innovative sampling approach that captured registered and unregistered distribution channels, complemented by in-depth interviews with a range of stakeholders. Antimalarial distribution chains were pyramidal in shape, with antimalarials passing through a maximum of 4-6 steps between manufacturer and retailer; however, most likely pass through 2-3 steps. Less efficacious non-artemisinin therapies (e.g. chloroquine dominated weekly sales volumes among African wholesalers, while volumes for more efficacious artemisinin-based combination therapies (ACTs were many times smaller. ACT sales predominated only in Cambodia. In all countries, consumer demand was the principal consideration when selecting products to stock. Selling prices and reputation were key considerations regarding supplier choice. Business practices varied across countries, with large differences in the proportions of wholesalers offering credit and delivery services to customers, and the types of distribution models adopted by businesses. Regulatory compliance also varied across countries, particularly with respect to licensing. The proportion of wholesalers possessing any up-to-date licence from national regulators was lowest in Benin and Nigeria, where vendors in traditional markets are

  18. Defining falciparum malaria attributable sever febrile illness in moderate to high transmission settings based on plasma PfHRP2 concentration

    NARCIS (Netherlands)

    Hendriksen, I.C.E.; White, L.J.; Veenemans, J.; Verhoef, J.C.M.

    2013-01-01

    Background. In malaria-endemic settings, asymptomatic parasitemia complicates the diagnosis of malaria. Histidine-rich protein 2 (HRP2) is produced by Plasmodium falciparum, and its plasma concentration reflects the total body parasite burden. We aimed to define the malaria-attributable fraction of

  19. Leading School Improvement: African American Women Principals in Urban Educational Settings

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    Mack, Yejide S.

    2010-01-01

    African American women administrators working in urban educational settings have been found to be effective leaders of school improvement. Underutilized women and people of color are the untapped value that organizations of all types need to enhance creativity, change efforts, teamwork, and financial benefits (Northouse, 2001). During the last…

  20. Assessment of Point-of-Care Diagnostics for G6PD Deficiency in Malaria Endemic Rural Eastern Indonesia.

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    Ari W Satyagraha

    2016-02-01

    Full Text Available Patients infected by Plasmodium vivax or Plasmodium ovale suffer repeated clinical attacks without primaquine therapy against latent stages in liver. Primaquine causes seriously threatening acute hemolytic anemia in patients having inherited glucose-6-phosphate dehydrogenase (G6PD deficiency. Access to safe primaquine therapy hinges upon the ability to confirm G6PD normal status. CareStart G6PD, a qualitative G6PD rapid diagnostic test (G6PD RDT intended for use at point-of-care in impoverished rural settings where most malaria patients live, was evaluated.This device and the standard qualitative fluorescent spot test (FST were each compared against the quantitative spectrophotometric assay for G6PD activity as the diagnostic gold standard. The assessment occurred at meso-endemic Panenggo Ede in western Sumba Island in eastern Indonesia, where 610 residents provided venous blood. The G6PD RDT and FST qualitative assessments were performed in the field, whereas the quantitative assay was performed in a research laboratory at Jakarta. The median G6PD activity ≥ 5 U/gHb was 9.7 U/gHb and was considered 100% of normal activity. The prevalence of G6PD deficiency by quantitative assessment (<5 U/gHb was 7.2%. Applying 30% of normal G6PD activity as the cut-off for qualitative testing, the sensitivity, specificity, positive predictive value, and negative predictive value for G6PD RDT versus FST among males were as follows: 100%, 98.7%, 89%, and 100% versus 91.7%, 92%, 55%, and 99%; P = 0.49, 0.001, 0.004, and 0.24, respectively. These values among females were: 83%, 92.7%, 17%, and 99.7% versus 100%, 92%, 18%, and 100%; P = 1.0, 0.89, 1.0 and 1.0, respectively.The overall performance of G6PD RDT, especially 100% negative predictive value, demonstrates suitable safety for G6PD screening prior to administering hemolytic drugs like primaquine and many others. Relatively poor diagnostic performance among females due to mosaic G6PD phenotype is an

  1. Genotyping of Plasmodium falciparum using antigenic polymorphic markers and to study anti-malarial drug resistance markers in malaria endemic areas of Bangladesh

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    Akter Jasmin

    2012-11-01

    Full Text Available Abstract Background In the past many regions of Bangladesh were hyperendemic for malaria. Malaria control in the 1960s to 1970s eliminated malaria from the plains but in the Chittagong Hill Tracts remained a difficult to control reservoir. The Chittagong Hill Tracts have areas with between 1 and 10% annual malaria rates, predominately 90-95% Plasmodium falciparum. In Southeast Asia, multiplicity of infection for hypo-endemic regions has been approximately 1.5. Few studies on the genetic diversity of P. falciparum have been performed in Bangladesh. Anderson et al. performed a study in Khagrachari, northern Chittagong Hill Tracts in 2002 on 203 patients and found that parasites had a multiplicity of infection of 1.3 by MSP-1, MSP-2 and GLURP genotyping. A total of 94% of the isolates had the K76T Pfcrt chloroquine resistant genotype, and 70% showed the N86Y Pfmdr1 genotype. Antifolate drug resistant genotypes were high with 99% and 73% of parasites having two or more mutations at the dhfr or dhps loci. Methods Nested and real-time polymerase chain reaction (PCR methods were used to genotype P. falciparum using antigenic polymorphic markers and to study anti-malarial drug resistance markers in malaria endemic areas of Bangladesh. Results The analysis of polymorphic and drug resistant genotype on 33 paired recrudescent infections after drug treatment in the period 2004 to 2008 in the Chittagong Hill Tracts, which is just prior to countrywide provision of artemisinin combination therapy. Overall the multiplicity of infection for MSP-1 was 2.7 with a slightly smaller parasite diversity post-treatment. The 13 monoclonal infections by both GLURP and MSP-1 were evenly divided between pre- and post-treatment. The MSP-1 MAD block was most frequent in 66 of the samples. The prevalence of the K76T PfCRT chloroquine resistant allele was approximately 82% of the samples, while the resistant Pfmdr1 N86Y was present in 33% of the samples. Interestingly, the post

  2. Evaluation of the diagnostic accuracy of CareStart G6PD deficiency Rapid Diagnostic Test (RDT in a malaria endemic area in Ghana, Africa.

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    Dennis Adu-Gyasi

    Full Text Available Glucose-6-phosphate dehydrogenase (G6PD deficiency is the most widespread enzyme defect that can result in red cell breakdown under oxidative stress when exposed to certain medicines including antimalarials. We evaluated the diagnostic accuracy of CareStart G6PD deficiency Rapid Diagnostic Test (RDT as a point-of-care tool for screening G6PD deficiency.A cross-sectional study was conducted among 206 randomly selected and consented participants from a group with known G6PD deficiency status between February 2013 and June 2013. A maximum of 1.6ml of capillary blood samples were used for G6PD deficiency screening using CareStart G6PD RDT and Trinity qualitative with Trinity quantitative methods as the "gold standard". Samples were also screened for the presence of malaria parasites. Data entry and analysis were done using Microsoft Access 2010 and Stata Software version 12. Kintampo Health Research Centre Institutional Ethics Committee granted ethical approval.The sensitivity (SE and specificity (SP of CareStart G6PD deficiency RDT was 100% and 72.1% compared to Trinity quantitative method respectively and was 98.9% and 96.2% compared to Trinity qualitative method. Malaria infection status had no significant (P=0.199 change on the performance of the G6PD RDT test kit compared to the "gold standard".The outcome of this study suggests that the diagnostic performance of the CareStart G6PD deficiency RDT kit was high and it is acceptable at determining the G6PD deficiency status in a high malaria endemic area in Ghana. The RDT kit presents as an attractive tool for point-of-care G6PD deficiency for rapid testing in areas with high temperatures and less expertise. The CareStart G6PD deficiency RDT kit could be used to screen malaria patients before administration of the fixed dose primaquine with artemisinin-based combination therapy.

  3. Direct blood PCR in combination with Nucleic Acid Laterla Flow Immuno-Assay for the detection of Plasmodium species in malaria endemic settings.

    NARCIS (Netherlands)

    Mens, P.F.; Bes, H.M.; Sondo, P.; Amerongen, van A.

    2012-01-01

    Declining malaria transmission and known difficulties with current diagnostic tools for malaria, such as microscopy and rapid diagnostic tests (RDTs) in particular at low parasite densities, still warrant the search for sensitive diagnostic tests. Molecular tests need substantial simplification befo

  4. Got ACTs? Availability, price, market share and provider knowledge of anti-malarial medicines in public and private sector outlets in six malaria-endemic countries

    Science.gov (United States)

    2011-01-01

    Background Artemisinin-based combination therapy (ACT) is the first-line malaria treatment throughout most of the malaria-endemic world. Data on ACT availability, price and market share are needed to provide a firm evidence base from which to assess the current situation concerning quality-assured ACT supply. This paper presents supply side data from ACTwatch outlet surveys in Benin, the Democratic Republic of Congo (DRC), Madagascar, Nigeria, Uganda and Zambia. Methods Between March 2009 and June 2010, nationally representative surveys of outlets providing anti-malarials to consumers were conducted. A census of all outlets with the potential to provide anti-malarials was conducted in clusters sampled randomly. Results 28,263 outlets were censused, 51,158 anti-malarials were audited, and 9,118 providers interviewed. The proportion of public health facilities with at least one first-line quality-assured ACT in stock ranged between 43% and 85%. Among private sector outlets stocking at least one anti-malarial, non-artemisinin therapies, such as chloroquine and sulphadoxine-pyrimethamine, were widely available (> 95% of outlets) as compared to first-line quality-assured ACT (< 25%). In the public/not-for-profit sector, first-line quality-assured ACT was available for free in all countries except Benin and the DRC (US$1.29 [Inter Quartile Range (IQR): $1.29-$1.29] and $0.52[IQR: $0.00-$1.29] per adult equivalent dose respectively). In the private sector, first-line quality-assured ACT was 5-24 times more expensive than non-artemisinin therapies. The exception was Madagascar where, due to national social marketing of subsidized ACT, the price of first-line quality-assured ACT ($0.14 [IQR: $0.10, $0.57]) was significantly lower than the most popular treatment (chloroquine, $0.36 [IQR: $0.36, $0.36]). Quality-assured ACT accounted for less than 25% of total anti-malarial volumes; private-sector quality-assured ACT volumes represented less than 6% of the total market share

  5. A variant reference data set for the Africanized honeybee, Apis mellifera

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    Kadri, Samir M.; Harpur, Brock A.; Orsi, Ricardo O.; Zayed, Amro

    2016-01-01

    The Africanized honeybee (AHB) is a population of Apis mellifera found in the Americas. AHBs originated in 1956 in Rio Clara, Brazil where imported African A. m. scutellata escaped and hybridized with local populations of European A. mellifera. Africanized populations can now be found from Northern Argentina to the Southern United States. AHBs—often referred to as ‘Killer Bees’— are a major concern to the beekeeping industry as well as a model for the evolutionary genetics of colony defence. We performed high coverage pooled-resequencing of 360 diploid workers from 30 Brazilian AHB colonies using Illumina Hi-Seq (150 bp PE). This yielded a high density SNP data set with an average read depth at each site of 20.25 reads. With 3,606,720 SNPs and 155,336 SNPs within 11,365 genes, this data set is the largest genomic resource available for AHBs and will enable high-resolution studies of the population dynamics, evolution, and genetics of this successful biological invader, in addition to facilitating the development of SNP-based tools for identifying AHBs. PMID:27824336

  6. A variant reference data set for the Africanized honeybee, Apis mellifera.

    Science.gov (United States)

    Kadri, Samir M; Harpur, Brock A; Orsi, Ricardo O; Zayed, Amro

    2016-11-08

    The Africanized honeybee (AHB) is a population of Apis mellifera found in the Americas. AHBs originated in 1956 in Rio Clara, Brazil where imported African A. m. scutellata escaped and hybridized with local populations of European A. mellifera. Africanized populations can now be found from Northern Argentina to the Southern United States. AHBs-often referred to as 'Killer Bees'- are a major concern to the beekeeping industry as well as a model for the evolutionary genetics of colony defence. We performed high coverage pooled-resequencing of 360 diploid workers from 30 Brazilian AHB colonies using Illumina Hi-Seq (150 bp PE). This yielded a high density SNP data set with an average read depth at each site of 20.25 reads. With 3,606,720 SNPs and 155,336 SNPs within 11,365 genes, this data set is the largest genomic resource available for AHBs and will enable high-resolution studies of the population dynamics, evolution, and genetics of this successful biological invader, in addition to facilitating the development of SNP-based tools for identifying AHBs.

  7. Exploring Leadership through Spiritual Practices and African Moral Virtues: Portraits of African American Women Principals in Urban Settings

    Science.gov (United States)

    Smith, Sharon Irene

    2009-01-01

    The purpose of this qualitative study was to explore the influences of spirituality on decisions made by African American women principals at the elementary school level in schools where children of color and poverty exist in significant numbers and to gain an understanding of how African moral virtues were evidenced in the day to day professional…

  8. 曹县疟疾流行与综合防治措施的研究%Malaria endemic situation and comprehensive prevention and control mea-sures in Caoxian County

    Institute of Scientific and Technical Information of China (English)

    梁占菊; 门凤民; 张雪梅; 祝玉洁; 王春云; 董丹丹

    2016-01-01

    Objective To understand the malaria endemic characteristics and control measures in Caoxian County,Shan⁃dong Province,so as to summarize the experiences of malaria elimination. Methods The data of malaria endemic situation and control measures in Caoxian County from 1953 to 2014 were collected and descriptively analyzed,and the control effectiveness was evaluated. Results The incidence of malaria reduced from 13.25%in 1970 to 0.33%in 1983,and no malaria case was found in 1986. The goal of basic malaria elimination was achieved. The sporadic malaria infections were found from 2006 to 2010,and three imported malaria cases were found in Caoxian County from 2011 to 2014. Conclusion The effect of compre⁃hensive prevention and control measures taken in Caoxian County is significant,and the goal of malaria elimination has been reached. The imported malaria and secondary cases are future focuses of malaria control work.%目的:分析曹县疟疾流行特征和防控策略,总结消除疟疾工作经验。方法收集、分析1953-2014年曹县疟疾疫情及各项防控措施落实情况,进行描述性分析和效果评价。结果曹县疟疾发病率由1970年的13.25%降至1983年的0.33%;1986年首次未发现疟疾报告病例,全县实现了基本消除疟疾的目标。2006-2010年均有散在病例发生。2011-2014年共报告3例国外输入性疟疾。结论曹县采取的综合性疟疾防治措施效果显著,具备了消除疟疾的条件。输入性疟疾病例及其二代病例是今后疟疾防治工作的重点。

  9. Free distribution of insecticidal bed nets improves possession and preferential use by households and is equitable: findings from two cross-sectional surveys in thirteen malaria endemic districts of Bangladesh

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    Ahmed Syed M

    2011-12-01

    Full Text Available Abstract Background BRAC, an indigenous non-governmental development organization (NGO, has been implementing a programme to prevent and control malaria in the 13 malaria-endemic districts of Bangladesh since 2007. One of the critical preventive interventions is the distribution of insecticidal bed nets (long-lasting insecticide-treated nets, LLINs and insecticide-treated ordinary nets, ITNs to the community free of cost. This study aimed to assess progress in the possession, preferential use, and knowledge on use of the LLIN/ITNs including the programme's avowed pro-poor inclination one and three and half years after intervention began. Methods A convenient sampling strategy based on malaria endemicity in the districts was adopted. First, thirty upazila (sub-district, with a population around 250,000s were selected at random, with high prevalent districts contributing more upazilas; second, from each upazila, one (2008 to two (2011 villages (covered by insecticidal bed net distribution programme were selected. From each village, households that had either one under-five child and/or a pregnant woman were included in the survey, one household being included only once. Data were collected using a pre-tested structured questionnaire. Results In all, 3,760 households in 2008 and 7,895 households in 2011 were surveyed for collecting relevant information. Proportion of households with at least one LLIN, and at least one LLIN/ITN increased (22-59 to 62-67% and 22-64% to 74-76% respectively over time, including increase in the mean number of LLIN/ITNs per household (≤ 1 to 1 +. The programme achieved > 80% coverage in sleeping under an LLIN/ITN in the case of under-five children and pregnant women, especially in the high-endemic districts. Knowledge regarding critical time of hanging the net also increased over time (7-22 to 44-54%, but remained low. The pro-poor inclination of the programme is reflected in the status of relevant indicators according

  10. Evaluation of a health setting-based stigma intervention in five African countries.

    Science.gov (United States)

    Uys, Leana; Chirwa, Maureen; Kohi, Thecla; Greeff, Minrie; Naidoo, Joanne; Makoae, Lucia; Dlamini, Priscilla; Durrheim, Kevin; Cuca, Yvette; Holzemer, William L

    2009-12-01

    The study aim is to explore the results of an HIV stigma intervention in five African health care settings. A case study approach was used. The intervention consisted of bringing together a team of approximately 10 nurses and 10 people living with HIV or AIDS (PLHA) in each setting and facilitating a process in which they planned and implemented a stigma reduction intervention, involving both information giving and empowerment. Nurses (n = 134) completed a demographic questionnaire, the HIV/AIDS Stigma Instrument-Nurses (HASI-N), a self-efficacy scale, and a self-esteem scale, both before and after the intervention, and the team completed a similar set of instruments before and after the intervention, with the PLHA completing the HIV/AIDS Stigma Instrument for PLHA (HASI-P). The intervention as implemented in all five countries was inclusive, action-oriented, and well received. It led to understanding and mutual support between nurses and PLHA and created some momentum in all the settings for continued activity. PLHA involved in the intervention teams reported less stigma and increased self-esteem. Nurses in the intervention teams and those in the settings reported no reduction in stigma or increases in self- esteem and self-efficacy, but their HIV testing behavior increased significantly. This pilot study indicates that the stigma experience of PLHA can be decreased, but that the stigma experiences of nurses are less easy to change. Further evaluation research with control groups and larger samples and measuring change over longer periods of time is indicated.

  11. 西藏自治区疟疾流行区传疟媒介研究%Study on malaria vectors in malaria endemic areas of Tibet Autonomous Region

    Institute of Scientific and Technical Information of China (English)

    武松; 黄芳; 周水森; 汤林华

    2012-01-01

    The malaria situation in Tibet has been in an active status and the malaria incidence reached the second in China in 2010. Malaria vector prevention and control is one of the important methods for malaria control, while the malaria vectors are still unknown in Tibet. The author summarized the past researches on malaria vectors in Tibet, so as to provide the evidence for improving malaria control investigation in malaria endemic areas of Tibet, with hopes to provide useful vector message for other researcher.%近年西藏自治区(简称西藏)林芝地区疟疾疫情一直处于不稳定状态,2010年疟疾发病率跃居全国第二.媒介防制是疟疾综合防治的重要手段,然而西藏疟疾流行区的传疟媒介尚未定论.本文对既往西藏林芝疟疾流行区的传疟媒介相关研究进行综述,以期为西藏疟疾防治提供媒介方面基础的研究信息.

  12. Policy implementation in wheelchair service delivery in a rural South African setting

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    Surona Visagie

    2013-01-01

    Full Text Available Background: Wheelchairs allow users to realise basic human rights and improved quality of life. South African and international documents guide rehabilitation service delivery and thus the provision of wheelchairs. Evidence indicates that rehabilitation policy implementation gaps exist in rural South Africa.Objectives: The aim of this article was to explore the extent to which wheelchair service delivery in a rural, remote area of South Africa was aligned with the South African National Guidelines on Provision of Assistive Devices, The United Nations Convention on the Rights of Persons with Disabilities and The World Health Organization Guidelines on Provision of Wheelchairs in Less-Resourced Settings.Method: Qualitative methods were used. Data were collected through semi-structured interviews with 22 participants who were identified through purposive sampling. Content analysis of data was preformed around the construct of wheelchair service delivery.Results: Study findings identified gaps between the guiding documents and wheelchair service delivery. Areas where gaps were identified included service aspects such as referral, assessment, prescription, user and provider training, follow up, maintenance and repair as well as management aspects such as staff support, budget and monitoring. Positive findings related to individual assessments, enthusiastic and caring staff and the provision of wheelchairs at no cost.Conclusion: The gaps in policy implementation can have a negative impact on users and the service provider. Inappropriate or no wheelchairs limit user function, participation and quality of life. In addition, an inappropriate wheelchair will have a shorter lifespan, requiring frequent repairs and replacements with cost implications for the service provider.

  13. Spontaneous Subdural Empyema Following a High-Parasitemia Falciparum Infection in a 58-Year-Old Female From a Malaria-Endemic Region

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    Pedro Pallangyo MD, MPH

    2016-08-01

    Full Text Available Malaria remains a significant public health problem of the tropical world. Falciparum malaria is most prevalent in the sub-Saharan African region, which harbors about 90% of all malaria cases and fatalities globally. Infection by the falciparum species often manifests with a spectrum of multi-organ complications (eg, cerebral malaria, some of which are life-threatening. Spontaneous subdural empyema is a very rare complication of cerebral malaria that portends a very poor prognosis unless diagnosed and treated promptly. We report a case of spontaneous subdural empyema in a 58-year-old woman from Tanzania who presented with high-grade fever, decreased urine output, and altered sensorium.

  14. Biopsychosocial Correlates of Binge Eating Disorder in Caucasian and African American Women with Obesity in Primary Care Settings.

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    Udo, Tomoko; White, Marney A; Lydecker, Janet L; Barnes, Rachel D; Genao, Inginia; Garcia, Rina; Masheb, Robin M; Grilo, Carlos M

    2016-05-01

    This study examined racial differences in eating-disorder psychopathology, eating/weight-related histories, and biopsychosocial correlates in women (n = 53 Caucasian and n = 56 African American) with comorbid binge eating disorder (BED) and obesity seeking treatment in primary care settings. Caucasians reported significantly earlier onset of binge eating, dieting, and overweight, and greater number of times dieting than African American. The rate of metabolic syndrome did not differ by race. Caucasians had significantly elevated triglycerides whereas African Americans showed poorer glycaemic control (higher glycated haemoglobin A1c [HbA1c]), and significantly higher diastolic blood pressure. There were no significant racial differences in features of eating disorders, depressive symptoms, or mental and physical health functioning. The clinical presentation of eating-disorder psychopathology and associated psychosocial functioning differed little by race among obese women with BED seeking treatment in primary care settings. Clinicians should assess for and institute appropriate interventions for comorbid BED and obesity in both African American and Caucasian patients.

  15. Advancing understanding of the sustainability of lay health advisor (LHA) programs for African-American women in community settings.

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    Shelton, Rachel C; Charles, Thana-Ashley; Dunston, Sheba King; Jandorf, Lina; Erwin, Deborah O

    2017-03-23

    Lay health advisor (LHA) programs have made strong contributions towards the elimination of health disparities and are increasingly being implemented to promote health and prevent disease. Developed in collaboration with African-American survivors, the National Witness Project (NWP) is an evidence-based, community-led LHA program that improves cancer screening among African-American women. NWP has been successfully disseminated, replicated, and implemented nationally in over 40 sites in 22 states in diverse community settings, reaching over 15,000 women annually. We sought to advance understanding of barriers and facilitators to the long-term implementation and sustainability of LHA programs in community settings from the viewpoint of the LHAs, as well as the broader impact of the program on African-American communities and LHAs. In the context of a mixed-methods study, in-depth telephone interviews were conducted among 76 African-American LHAs at eight NWP sites at baseline and 12-18 months later, between 2010 and 2013. Qualitative data provides insight into inner and outer contextual factors (e.g., community partnerships, site leadership, funding), implementation processes (e.g., training), as well as characteristics of the intervention (e.g., perceived need and fit in African-American community) and LHAs (e.g., motivations, burnout) that are perceived to impact the continued implementation and sustainability of NWP. Factors at the contextual levels and related to motivations of LHAs are critical to the sustainability of LHA programs. We discuss how findings are used to inform (1) the development of the LHA Sustainability Framework and (2) strategies to support the continued implementation and sustainability of evidence-based LHA interventions in community settings.

  16. Speaking up for African American English: Equity and Inclusion in Early Childhood Settings

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    Beneke, Margaret; Cheatham, Gregory A.

    2015-01-01

    A large percentage of young children entering preschool are English speakers who speak a language variety that often differs from the English dialect expected by educators within early childhood programs. While African American English (AAE) is one of the most widely recognized English dialects in the United States, the use of AAE in schools and…

  17. Malaria and blood transfusion: major issues of blood safety in malaria-endemic countries and strategies for mitigating the risk of Plasmodium parasites.

    Science.gov (United States)

    Abdullah, Saleh; Karunamoorthi, Kaliyaperumal

    2016-01-01

    Malaria inflicts humankind over centuries, and it remains as a major threat to both clinical medicine and public health worldwide. Though hemotherapy is a life-sustaining modality, it continues to be a possible source of disease transmission. Hence, hemovigilance is a matter of grave concern in the malaria-prone third-world countries. In order to pursue an effective research on hemovigilance, a comprehensive search has been conducted by using the premier academic-scientific databases, WHO documents, and English-language search engines. One hundred two appropriate articles were chosen for data extraction, with a particular reference to emerging pathogens transmitted through blood transfusion, specifically malaria. Blood donation screening is done through microscopic examination and immunological assays to improve the safety of blood products by detection major blood-borne pathogens, viz., HIV, HBV, HCV, syphilis, and malarial parasites. Transfusion therapy significantly dwindles the preventable morbidity and mortality attributed to various illnesses and diseases, particularly AIDS, tuberculosis, and malaria. Examination of thick and thin blood smears are performed to detect positivity and to identify the Plasmodium species, respectively. However, all of these existing diagnostic tools have their own limitations in terms of sensitivity, specificity, cost-effectiveness, and lack of resources and skilled personnel. Globally, despite the mandate need of screening blood and its components according to the blood-establishment protocols, it is seldom practiced in the low-income/poverty-stricken settings. In addition, each and every single phase of transfusion chain carries sizable inherent risks from donors to recipients. Interestingly, opportunities also lie ahead to enhance the safety of blood-supply chain and patients. It can be achieved through sustainable blood-management strategies like (1) appropriate usage of precise diagnostic tools/techniques, (2) promoting

  18. What would PCR assessment change in the management of fevers in a malaria endemic area? A school-based study in Benin in children with and without fever

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    Faucher Jean-François

    2010-08-01

    Full Text Available Abstract Background A recent school-based study in Benin showed that applying a policy of anti-malarial prescriptions restricted to parasitologically-confirmed cases on the management of fever is safe and feasible. Additional PCR data were analysed in order to touch patho-physiological issues, such as the usefulness of PCR in the management of malaria in an endemic area or the triggering of a malaria attack in children with submicroscopic malaria. Methods PCR data were prospectively collected in the setting of an exposed (with fever/non exposed (without fever study design. All children had a negative malaria rapid diagnostic test (RDT at baseline, were followed up to day 14 and did not receive drugs with anti-malarial activity. The index group was defined by children with fever at baseline and the control group by children without fever at baseline. Children with submicroscopic malaria in these two groups were defined by a positive PCR at baseline. Results PCR was positive in 66 (27% children of the index group and in 104 (44% children of the control group respectively. The only significant factor positively related to PCR positivity at baseline was the clinical status (control group. When definition of malaria attacks included PCR results, no difference of malaria incidence was observed between the index and control groups, neither in the whole cohort, nor in children with submicroscopic malaria. The rate of undiagnosed malaria at baseline was estimated to 3.7% at baseline in the index group. Conclusions Treating all children with fever and a positive PCR would have led to a significant increase of anti-malarial consumption, with few benefits in terms of clinical events. Non malarial fevers do not or do not frequently trigger malaria attacks in children with submicroscopic malaria.

  19. Prevention of Malaria Resurgence in Greece through the Association of Mass Drug Administration (MDA) to Immigrants from Malaria-Endemic Regions and Standard Control Measures.

    Science.gov (United States)

    Tseroni, Maria; Baka, Agoritsa; Kapizioni, Christina; Snounou, Georges; Tsiodras, Sotirios; Charvalakou, Maria; Georgitsou, Maria; Panoutsakou, Maria; Psinaki, Ioanna; Tsoromokou, Maria; Karakitsos, George; Pervanidou, Danai; Vakali, Annita; Mouchtouri, Varvara; Georgakopoulou, Theano; Mamuris, Zissis; Papadopoulos, Nikos; Koliopoulos, George; Badieritakis, Evangelos; Diamantopoulos, Vasilis; Tsakris, Athanasios; Kremastinou, Jenny; Hadjichristodoulou, Christos

    2015-11-01

    Greece was declared malaria-free in 1974 after a long antimalarial fight. In 2011-2012, an outbreak of P. vivax malaria was reported in Evrotas, an agricultural area in Southern Greece, where a large number of immigrants from endemic countries live and work. A total of 46 locally acquired and 38 imported malaria cases were detected. Despite a significant decrease of the number of malaria cases in 2012, a mass drug administration (MDA) program was considered as an additional measure to prevent reestablishment of the disease in the area. During 2013 and 2014, a combination of 3-day chloroquine and 14-day primaquine treatment was administered under direct observation to immigrants living in the epicenter of the 2011 outbreak in Evrotas. Adverse events were managed and recorded on a daily basis. The control measures implemented since 2011 continued during the period of 2013-2014 as a part of a national integrated malaria control program that included active case detection (ACD), vector control measures and community education. The MDA program was started prior to the transmission periods (from May to December). One thousand ninety four (1094) immigrants successfully completed the treatment, corresponding to 87.3% coverage of the target population. A total of 688 adverse events were recorded in 397 (36.2%, 95% C.I.: 33.4-39.1) persons, the vast majority minor, predominantly dizziness and headache for chloroquine (284 events) and abdominal pain (85 events) for primaquine. A single case of primaquine-induced hemolysis was recorded in a person whose initial G6PD test proved incorrect. No malaria cases were recorded in Evrotas, Laconia, in 2013 and 2014, though three locally acquired malaria cases were recorded in other regions of Greece in 2013. Preventive antimalarial MDA to a high-risk population in a low transmission setting appears to have synergized with the usual antimalarial activities to achieve malaria elimination. This study suggests that judicious use of MDA can

  20. Study on the association between environmental cadmium exposure, cytochrome P450-mediated 20-HETE, heme-oxygenase-1 polymorphism and hypertension in Thai population residing in a malaria endemic areas with cadmium pollution.

    Science.gov (United States)

    Boonprasert, Kanyarat; Ruengweerayut, Ronnatrai; Satarug, Soisungwan; Na-Bangchang, Kesara

    2011-05-01

    The aims of the study were to investigate (i) the effects of environmental cadmium (Cd) on hypertension, biological markers of renal dysfunction and renal cytochrome P450-mediated arachidonate metabolism; and (ii) the association between genetic polymorphism of heme oxygenase-1 (HO-1) and hypertension and Cd-induced renal injury in the exposed Thai population. The study was conducted in adult subjects residing in Cd-contaminated malaria endemic areas of Mae Sot District, Thailand. All subjects were randomly selected and consistently distributed for sex, age and residential areas. Blood and urinary Cd levels were not significantly different between the case (hypertensive) and control (matched-pair normotensive) groups. While other renal dysfunction biomarkers were comparable between the two groups, urinary microalbumin, urinary 20-hydroxy-5,8,11,14-eicosatetraenoic acid (20-HETE) and serum creatinine were siginificantly higher in the hypertensive group. Only N-acetyl-β-glucosaminidase (NAG) showed positive correlation with Cd in hypertensive and normotensive group. With respect to heme oxygenase-1 (HO-1) polymorphism, the frequencies of (GT)(n) alleles were similar in both case and control groups. The frequency of SL genotype was significantly higher in the control group, whereas the frequency of ML genotype was significantly higher in the case group. Although no significant difference between 20-HETE and NAG levels in various HO-1 genotypes was found, a trend of increase in 20-HETE and NAG levels was observed in subjects carrying longer (GT)(n) repeats. Results from the present study provide no clear evidence on the direct effects of environmental Cd on high blood pressure development in the non-occupational exposed Thai population. Furthermore, the indirect effect of Cd through HO-1 (genetic polymorphism and prevalence of long GT(n) repeats) and 20-HETE was inconclusive. Based on the data obtained in the present investigation further studies should be performed

  1. Molecular markers associated with resistance to commonly used antimalarial drugs among Plasmodium falciparum isolates from a malaria-endemic area in Taiz governorate-Yemen during the transmission season.

    Science.gov (United States)

    Alareqi, Lina M Q; Mahdy, Mohammed A K; Lau, Yee-Ling; Fong, Mun-Yik; Abdul-Ghani, Rashad; Mahmud, Rohela

    2016-10-01

    Since 2005, artesunate (AS) plus sulfadoxine/pyrimethamine (SP) combination has been adopted as the first-line treatment for uncomplicated malaria in Yemen in response to the high level of Plasmodium falciparum resistance to chloroquine (CQ). Therefore, the aim of the present study was to determine the frequency distribution of molecular markers associated with resistance to CQ and AS plus SP combination among P. falciparum isolates from a malaria-endemic area in Taiz governorate, Yemen. Fifty P. falciparum isolates were collected during a cross-sectional study in Mawza district, Taiz, in the period from October 2013 to April 2014. The isolates were investigated for drug resistance-associated molecular markers in five genes, including P. falciparum CQ resistance transporter (pfcrt) 76T and P. falciparum multidrug resistance 1 (pfmdr1) 86Y as markers of resistance to CQ, mutations in the Kelch 13 (K13) propeller domain for resistance to AS, and P. falciparum dihydrofolate reductase (pfdhfr) and P. falciparum dihydropteroate synthase (pfdhps) genes for resistance to SP. Nested polymerase chain reaction was used to amplify target genes in DNA extracts of the isolates followed by restriction fragment length polymorphism for detecting 76T and 86Y mutations in pfcrt and pfmdr1, respectively, and by DNA sequencing for detecting mutations in K13, pfdhfr and pfdhps. All the investigated isolates from Mawza district were harboring the pfcrt 76T mutant and the pfmdr1 N86 wild-type alleles. The pfdhfr 51I/108N double mutant allele was found in 2.2% (1/45) of the isolates; however, no mutations were detected at codons 436, 437, 540, 581 and 613 of pfdhps. All P. falciparum isolates that were successfully sequenced (n=47) showed the K13 Y493, R539, I543 and C580 wild-type alleles. In conclusion, the pfcrt 76T mutant allele is fixed in the study area about six years after the official withdrawal of CQ, possibly indicating its over-the-counter availability and continued use as a

  2. Increased deposition of C3b on red cells with low CR1 and CD55 in a malaria-endemic region of western Kenya: Implications for the development of severe anemia

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    Odera Michael M

    2008-08-01

    Full Text Available Abstract Background Severe anemia due to Plasmodium falciparum malaria is a major cause of mortality among young children in western Kenya. The factors that lead to the age-specific incidence of this anemia are unknown. Previous studies have shown an age-related expression of red cell complement regulatory proteins, which protect erythrocytes from autologous complement attack and destruction. Our primary objective was to determine whether in a malaria-endemic area red cells with low levels of complement regulatory proteins are at increased risk for complement (C3b deposition in vivo. Secondarily, we studied the relationship between red cell complement regulatory protein levels and hemoglobin levels. Methods Three hundred and forty-two life-long residents of a malaria-holoendemic region of western Kenya were enrolled in a cross-sectional study and stratified by age. We measured red cell C3b, CR1, CD55, and immune complex binding capacity by flow cytometry. Individuals who were positive for malaria were treated and blood was collected when they were free of parasitemia. Analysis of variance was used to identify independent variables associated with the %C3b-positive red cells and the hemoglobin level. Results Individuals between the ages of 6 and 36 months had the lowest red cell CR1, highest %C3b-positive red cells, and highest parasite density. Malaria prevalence also reached its peak within this age group. Among children ≤ 24 months of age the %C3b-positive red cells was usually higher in individuals who were treated for malaria than in uninfected individuals with similarly low red cell CR1 and CD55. The variables that most strongly influenced the %C3b-positive red cells were age, malaria status, and red cell CD55 level. Although it did not reach statistical significance, red cell CR1 was more important than red cell CD55 among individuals treated for malaria. The variables that most strongly influenced the hemoglobin level were age, the %C3b

  3. Avaliação de Hb A2 e Hb F em doadores de sangue de região malarígena da Amazônia Oriental brasileira por HPLC Evaluation of Hb A2 and Hb F by HPLC in blood donors from the malaria endemic region of Eastern Amazon of Brazil

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    Wanessa C. Souza

    2003-01-01

    Full Text Available In malaria endemic regions of Africa, resistance to infection by Plasmodium has been observed in under 6-month-old children, when there are higher fetal hemoglobin (Hb F levels. Research performed in the São José do Rio Preto region, central-east Brazil, reported increased levels of Hb F in blood donors. The purpose of this work was to evaluate the A2 hemoglobin (Hb A2 and Hb F concentrations in blood donors deriving from the Brazilian malaria endemic region. Forty-five blood donor samples from Macapá, from patients with varying genders, ages and ethnic origins, were collected by venous puncture after informed consent was obtained. The samples were analyzed by High Performance Liquid Chromatography (HPLC - System Variant (Bio-Rad. The HPLC demonstrated sensitivity and rapidity in the identification and measurement of the hemoglobins and gave precise results. Moreover, it provided measurement of hemoglobin variants, even when they were present in small amounts, providing a diagnosis of hemoglobinopathies. Hb F levels above the normal were observed in 33.3% of the analyzed samples. The presence of increased Hb F can suggest resistance to infection by Plasmodium falciparum, as there have been reports that infected red blood cells interfere in the development of the parasite.

  4. Effect of African- and European-American maternal attitudes and limit-setting strategies on children's self-regulation.

    Science.gov (United States)

    LeCuyer, Elizabeth A; Swanson, Dena P; Cole, Robert; Kitzman, Harriet

    2011-12-01

    The effect of maternal attitudes and limit-setting strategies on children's self-regulation (measured as committed compliance) was compared in 151 African-American (AA) and 108 European-American (EA) mothers and their 3-year-old children. There were no ethnic differences in children's compliance, however ethnicity moderated the relationship between maternal authoritarian attitudes and children's compliance. Higher authoritarian attitudes predicted less children's compliance in the EA sample, but greater compliance in the AA sample. Observational limit-setting data revealed that in both ethnic groups, maternal authoritarian attitudes influenced children's self-regulation through maternal use of lower-power (gentle) verbal strategies, fewer physical strategies, and judicious use of higher-power verbal strategies. The findings indicate that the meaning and purpose of authoritarian attitudes varies across these mothers' socio-cultural contexts.

  5. Measuring Men's Gender Norms and Gender Role Conflict/Stress in a High HIV-Prevalence South African Setting.

    Science.gov (United States)

    Gottert, Ann; Barrington, Clare; Pettifor, Audrey; McNaughton-Reyes, Heath Luz; Maman, Suzanne; MacPhail, Catherine; Kahn, Kathleen; Selin, Amanda; Twine, Rhian; Lippman, Sheri A

    2016-08-01

    Gender norms and gender role conflict/stress may influence HIV risk behaviors among men; however scales measuring these constructs need further development and evaluation in African settings. We conducted exploratory and confirmatory factor analyses to evaluate the Gender Equitable Men's Scale (GEMS) and the Gender Role Conflict/Stress (GRC/S) scale among 581 men in rural northeast South Africa. The final 17-item GEMS was unidimensional, with adequate model fit and reliability (alpha = 0.79). Factor loadings were low (0.2-0.3) for items related to violence and sexual relationships. The final 24-item GRC/S scale was multidimensional with four factors: Success, power, competition; Subordination to women; Restrictive emotionality; and Sexual prowess. The scale had adequate model fit and good reliability (alpha = 0.83). While GEMS is a good measure of inequitable gender norms, new or revised scale items may need to be explored in the South African context. Adding the GRC/S scale to capture men's strain related to gender roles could provide important insights into men's risk behaviors.

  6. Setting aside Transactions from Pyramid Schemes as Impeachable Dispositions under South African Insolvency Legislation

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    Zingapi Mabe

    2016-10-01

    Full Text Available South African courts have experienced a rise in the number of cases involving schemes that promise a return on investment with interest rates which are considerably above the maximum amount allowed by law, or schemes which promise compensation from the active recruitment of participants. These schemes, which are often referred to as pyramid or Ponzi schemes, are unsustainable operations and give rise to problems in the law of insolvency. Investors in these schemes are often left empty-handed upon the scheme’s eventual collapse and insolvency. Investors who received pay-outs from the scheme find themselves in the defence against the trustee’s claims for the return of the pay-outs to the insolvent estate. As the schemes are illegal and the pay-outs are often in terms of void agreements, the question arises whether they can be returned to the insolvent estate. A similar situation arose in Griffiths v Janse van Rensburg 2015 ZASCA 158 (26 October 2015. The point of contention in this case was whether the illegality of the business of the scheme was a relevant consideration in determining whether the pay-outs were made in the ordinary course of business of the scheme. This paper discusses pyramid schemes in the context of impeachable dispositions in terms of the Insolvency Act 24 of 1936.

  7. A review of hypoglycaemia in a South African family practice setting

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    Devan K. Pillay

    2016-03-01

    Full Text Available Background: The prevalence and incidence of diabetes in South Africa are high and are expected to increase. Mortality and morbidity may be related to hypoglycaemia, and there is limited information on hypoglycaemia from private practice sites. The aim of this study was to assess patients’ education about, knowledge of and response to hypoglycaemia.Methods: The study site was a general practice, and participants were all patients with diabetes who presented to the practice over a 1-month period. Data were collected using a closedended questionnaire and analysed descriptively.Findings: Most respondents were South Africans of Indian origin and were diagnosed with diabetes at a relatively young age. Despite attending a private practice, most had low incomes and low schooling levels. Just under half reported having experienced hypoglycaemia, and there was a strong association between hypoglycaemia and insulin use. Many reported never having received any education around hypoglycaemia.Discussion: The study highlights the need for early screening for diabetes in this vulnerable population. Hypoglycaemic education should consider low schooling levels even in a private general practice, and further study is required on the quality and frequency of education provided in general practice.Keywords: diabetes; hypoglycemia, KwaZulu-Natal; hypoglycemic education

  8. Stereotype Threat in Manual Labor Settings for African American and Caucasian Participants

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    Flanagan, Jennifer L.; Green, Raymond J.

    2011-01-01

    Stereotype threat has primarily been studied with regard to test performance in academic settings, testing aptitude, ability, and intelligence, and it has been found to cause both behavioral and cognitive decrements. Although there is research on stereotype threat in the workplace, this too is usually conducted in upper-level or more academically…

  9. The relationship between creativity and mental disorder in an African setting

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    Olugbile O

    2011-01-01

    Full Text Available Background: There has for some time now been recognition that there was a relationship between exceptional creative talent and mental disorder. The works of Andreasen (2008 and others in this area have been very significant. However, most of the research has been carried out in USA and Europe. Very little has come out of Africa on the subject. Aim : To survey the beliefs of different groups within an African society, concerning the possibility of a relationship between creative talent and mental disorder. To assess creativity within a community of people with a formal diagnosis of mental disorder. Materials and Methods: Some of the mythology of the Yoruba was examined for content, concerning the behaviour of certain notable individuals and the existence of psychopathology based on modern-day criteria. The beliefs of members of the general public and mental health professionals concerning the existence of a relationship between creative talent and psychopathology were surveyed using a questionnaire designed for the project. A sample of patients with formal diagnoses of affective disorder or schizophrenia drawn from two units, the Lagos State University Teaching Hospital and the Federal Neuropsychiatric Hospital Yaba, were assessed for ′Creativity.′ Results : Although there are notable ′eccentric′ figures in local mythology, the overwhelming majority of the people surveyed do not believe there is any relationship between creativity and mental illness. They however believe that engaging in creative activities helps the mentally ill to recover from illness. The mental health professionals, who were clinical psychologists and psychiatrists, had a significant minority who believed that a relationship does exist, and they also strongly assert that creative activity has a therapeutic effect for the mentally ill. A survey of in-patients diagnosed with schizophrenia and affective disorder failed to show a significant difference in the creativity

  10. The relationship between creativity and mental disorder in an African setting

    Directory of Open Access Journals (Sweden)

    O. Olugbile

    2011-03-01

    Full Text Available Background: There has for some time now been recognition that there was a relationship between exceptional creative talent and mental disorder. The works of Andreasen (2008 and others in this area have been very significant. However, most of the research has been carried out in USA and Europe. Very little has come out of Africa on the subject. Aim : To survey the beliefs of different groups within an African society, concerning the possibility of a relationship between creative talent and mental disorder. To assess creativity within a community of people with a formal diagnosis of mental disorder. Materials and Methods: Some of the mythology of the Yoruba was examined for content, concerning the behaviour of certain notable individuals and the existence of psychopathology based on modern-day criteria. The beliefs of members of the general public and mental health professionals concerning the existence of a relationship between creative talent and psychopathology were surveyed using a questionnaire designed for the project. A sample of patients with formal diagnoses of affective disorder or schizophrenia drawn from two units, the Lagos State University Teaching Hospital and the Federal Neuropsychiatric Hospital Yaba, were assessed for 'Creativity.' Results : Although there are notable 'eccentric' figures in local mythology, the overwhelming majority of the people surveyed do not believe there is any relationship between creativity and mental illness. They however believe that engaging in creative activities helps the mentally ill to recover from illness. The mental health professionals, who were clinical psychologists and psychiatrists, had a significant minority who believed that a relationship does exist, and they also strongly assert that creative activity has a therapeutic effect for the mentally ill. A survey of in-patients diagnosed with schizophrenia and affective disorder failed to show a significant difference in the creativity of the

  11. Exploring the impact of wheelchair design on user function in a rural South African setting

    OpenAIRE

    2015-01-01

    Background: Wheelchairs provide mobility that can enhance function and community integration. Function in a wheelchair is influenced by wheelchair design.Objectives: To explore the impact of wheelchair design on user function and the variables that guided wheelchair prescription in the study setting.Method: A mixed-method, descriptive design using convenience sampling was implemented. Quantitative data were collected from 30 wheelchair users using the functioning every day with a Wheelchair S...

  12. Impact of Goal Setting and Goal Attainment Methods on Asthma Outcomes: Findings From an Asthma Self-Management Intervention for African American Women

    Science.gov (United States)

    Aaron, Micah; Nelson, Belinda W.; Kaltsas, Elena; Brown, Randall W.; Thomas, Lara J.; Patel, Minal R.

    2017-01-01

    Optimal use of goal-setting strategies in self-management efforts with high-risk individuals with asthma is not well understood. This study aimed to describe factors associated with goal attainment in an asthma self-management intervention for African American women with asthma and determine whether goal attainment methods proved beneficial to…

  13. Random blood glucose may be used to assess long-term glycaemic control among patients with type 2 diabetes mellitus in a rural African clinical setting

    DEFF Research Database (Denmark)

    Rasmussen, Jon B; Nordin, Lovisa S; Rasmussen, Niclas S

    2014-01-01

    OBJECTIVES: To investigate the diagnostic accuracy of random blood glucose (RBG) on good glycaemic control among patients with diabetes mellitus (DM) in a rural African setting. METHODS: Cross-sectional study at St. Francis' Hospital in eastern Zambia. RBG and HbA1c were measured during one...

  14. South African health financing reform 2000-2010: understanding the agenda-setting process.

    Science.gov (United States)

    Pillay, Timesh D; Skordis-Worrall, Jolene

    2013-03-01

    Governments around the world are struggling to address persistent disparities in health care access. However, this priority competes with many others for support in moving onto and up the political agenda. In this paper, a novel method of agenda-setting analysis is developed by merging and modifying the Hall and Kingdon models. As a case study, this method is used to explore how health financing reform reached the policy agenda in South Africa between the years 2000 and 2010. Certain factors are identified that could have determined the agenda-setting process: a change in government, increase in the cost of private medical schemes, and increase in support for reform from various stakeholders. Further analysis, using a conceptual framework of interacting trends and shocks, identifies the growing middle class, the private sector, and workers unions as powerful actors and outlines further factors that may have contributed to the process: a broad political shift in the second half of the decade and the changing prioritisation of HIV/AIDS. Study findings have relevance to academics and policy makers in South Africa and beyond.

  15. Potential future impact of a partially effective HIV vaccine in a southern African setting

    DEFF Research Database (Denmark)

    Phillips, Andrew N; Cambiano, Valentina; Nakagawa, Fumiyo

    2014-01-01

    of efficacy characteristics, in the context of continued ART roll-out in southern Africa. RESULTS: In the context of our base case epidemic (in 2015 HIV prevalence 28% and incidence 1.7 per 100 person years), a vaccine with only 30% preventative efficacy could make a substantial difference in the rate......BACKGROUND: It is important for public health and within the HIV vaccine development field to understand the potential population level impact of an HIV vaccine of partial efficacy--both in preventing infection and in reducing viral load in vaccinated individuals who become infected--in the context...... of a realistic future implementation scenario in resource limited settings. METHODS: An individual level model of HIV transmission, progression and the effect of antiretroviral therapy was used to predict the outcome to 2060 of introduction in 2025 of a partially effective vaccine with various combinations...

  16. Exploring the impact of wheelchair design on user function in a rural South African setting

    Directory of Open Access Journals (Sweden)

    Surona Visagie

    2015-02-01

    Full Text Available Background: Wheelchairs provide mobility that can enhance function and community integration. Function in a wheelchair is influenced by wheelchair design.Objectives: To explore the impact of wheelchair design on user function and the variables that guided wheelchair prescription in the study setting.Method: A mixed-method, descriptive design using convenience sampling was implemented. Quantitative data were collected from 30 wheelchair users using the functioning every day with a Wheelchair Scale and a Wheelchair Specification Checklist. Qualitative data were collected from ten therapists who prescribed wheelchairs to these users, through interviews. The Kruskal-Wallis test was used to identify relationships, and content analysis was undertaken to identify emerging themes in qualitative data.Results: Wheelchairs with urban designs were issued to 25 (83% participants. Wheelchair size, fit, support and functional features created challenges concerning transport, operating the wheelchair, performing personal tasks, and indoor and outdoor mobility. Users using wheelchairs designed for use in semi-rural environments achieved significantly better scores regarding the appropriateness of the prescribed wheelchair than those using wheelchairs designed for urban use (p = <0.01. Therapists prescribed the basic, four-wheel folding frame design most often because of a lack of funding, lack of assessment, lack of skills and user choice.Conclusion: Issuing urban type wheelchairs to users living in rural settings might have a negative effect on users’ functional outcomes. Comprehensive assessments, further training and research, on long term cost and quality of life implications, regarding provision of a suitable wheelchair versus a cheaper less suitable option is recommended.

  17. Population survey sampling methods in a rural African setting: measuring mortality

    Directory of Open Access Journals (Sweden)

    Byass Peter

    2008-05-01

    Full Text Available Abstract Background Population-based sample surveys and sentinel surveillance methods are commonly used as substitutes for more widespread health and demographic monitoring and intervention studies in resource-poor settings. Such methods have been criticised as only being worthwhile if the results can be extrapolated to the surrounding 100-fold population. With an emphasis on measuring mortality, this study explores the extent to which choice of sampling method affects the representativeness of 1% sample data in relation to various demographic and health parameters in a rural, developing-country setting. Methods Data from a large community based census and health survey conducted in rural Burkina Faso were used as a basis for modelling. Twenty 1% samples incorporating a range of health and demographic parameters were drawn at random from the overall dataset for each of seven different sampling procedures at two different levels of local administrative units. Each sample was compared with the overall 'gold standard' survey results, thus enabling comparisons between the different sampling procedures. Results All sampling methods and parameters tested performed reasonably well in representing the overall population. Nevertheless, a degree of variation could be observed both between sampling approaches and between different parameters, relating to their overall distribution in the total population. Conclusion Sample surveys are able to provide useful demographic and health profiles of local populations. However, various parameters being measured and their distribution within the sampling unit of interest may not all be best represented by a particular sampling method. It is likely therefore that compromises may have to be made in choosing a sampling strategy, with costs, logistics the intended use of the data being important considerations.

  18. Electronic data capture in a rural African setting: evaluating experiences with different systems in Malawi

    Directory of Open Access Journals (Sweden)

    Carina King

    2014-10-01

    Full Text Available Background: As hardware for electronic data capture (EDC, such as smartphones or tablets, becomes cheaper and more widely available, the potential for using such hardware as data capture tools in routine healthcare and research is increasing. Objective: We aim to highlight the advantages and disadvantages of four EDC systems being used simultaneously in rural Malawi: two for Android devices (CommCare and ODK Collect, one for PALM and Windows OS (Pendragon, and a custom-built application for Android (Mobile InterVA – MIVA. Design: We report on the personal field and development experience of fieldworkers, project managers, and EDC system developers. Results: Fieldworkers preferred using EDC to paper-based systems, although some struggled with the technology at first. Highlighted features include in-built skip patterns for all systems, and specifically the ‘case’ function that CommCare offers. MIVA as a standalone app required considerably more time and expertise than the other systems to create and could not be customised for our specific research needs; however, it facilitates standardised routine data collection. CommCare and ODK Collect both have user-friendly web-interfaces for form development and good technical support. CommCare requires Internet to build an application and download it to a device, whereas all steps can be done offline with ODK Collect, a desirable feature in low connectivity settings. Pendragon required more complex programming of logic, using a Microsoft Access application, and generally had less technical support. Start-up costs varied between systems, and all were considered more expensive than setting up a paper-based system; however running costs were generally low and therefore thought to be cost-effective over the course of our projects. Conclusions: EDC offers many opportunities for efficient data collection, but brings some issues requiring consideration when designing a study; the decision of which hardware

  19. Implementing oral care to reduce aspiration pneumonia amongst patients with dysphagia in a South African setting

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    Jaishika Seedat

    2016-02-01

    Full Text Available Oral care is a crucial routine for patients with dysphagia that, when completed routinely, can prevent the development of aspiration pneumonia. There is no standardised protocol for oral care within government hospitals in South Africa. This study aimed to investigate the outcome of an oral care protocol. Participants were patients with oropharyngeal dysphagia, with either stroke or traumatic brain injury as the underlying medical pathology, and nurses. All participants were recruited from one tertiary level government hospital in Gauteng, South Africa. 139 nurses participated in the study and received training on the oral care protocol. There were two groups of participants with oropharyngeal dysphagia. Group one (study group, n = 23 was recruited by consecutive sampling, received regular oral care and were not restricted from drinking water; however, all other liquids were restricted. Group two (comparison group, n = 23 was recruited via a retrospective record review, received inconsistent oral care and were placed on thickened liquids or liquid restricted diets. Results showed that a regimen of regular oral care and free water provision when combined with dysphagia intervention did prevent aspiration pneumonia in patients with oropharyngeal dysphagia. The article highlights two key findings: that regular and routine oral care is manageable within an acute government hospital context and a strict routine of oral care can reduce aspiration pneumonia in patients with oropharyngeal dysphagia. An implication from these findings is confirmation that teamwork in acute care settings in developing contexts must be prioritised to improve dysphagia management and patient prognosis.

  20. Developing family-friendly signage in a South African paediatric healthcare setting

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    Angela L. Leonard

    2014-10-01

    Full Text Available Background: Multiple renovations and changing flow in a tertiary children’s hospital in Cape Town resulted in numerous signs being posted in the corridors and units, making wayfinding extremely complex. A request from nursing management prompted the formation of a learning collaborative of nurses from all departments to improve wayfinding signage.Objectives: The project aimed to contribute to a family-friendly environment by reviewing the current situation and developing signage to improve wayfinding and convey essential information to parents, caregivers and patients.Methods: A participative action research method followed a four-stage process to facilitate the development of family-friendly signage. Nurse participants reviewed existing signage and collaboratively developed new signage templates and posted signs. The signage was then evaluated using a rapid appraisal questionnaire involving 50 parents and nurse respondents. At each stage of data collection, the matic content analysis was used to analyse data gathered in process meetings and the reflections of participating nurses.Results: A design template and then 44 new signs were developed and used to replace old signage. Respondents reported that the new signs were noticeable, looked attractive and were easily understandable.Conclusion: Intentional and active participation of nurses in clinical paediatric settings ensured collaborative data gathering and analysis. An inclusive research design allowed for insights into the words and tone of posted signs that nurse participants had not noticed previously. The participative redesign of signage resulted in a sense of ownership of the signs.The support and involvement of hospital management throughout ensured that the resulting signage received wide acceptance.

  1. Potential future impact of a partially effective HIV vaccine in a southern African setting.

    Directory of Open Access Journals (Sweden)

    Andrew N Phillips

    Full Text Available It is important for public health and within the HIV vaccine development field to understand the potential population level impact of an HIV vaccine of partial efficacy--both in preventing infection and in reducing viral load in vaccinated individuals who become infected--in the context of a realistic future implementation scenario in resource limited settings.An individual level model of HIV transmission, progression and the effect of antiretroviral therapy was used to predict the outcome to 2060 of introduction in 2025 of a partially effective vaccine with various combinations of efficacy characteristics, in the context of continued ART roll-out in southern Africa.In the context of our base case epidemic (in 2015 HIV prevalence 28% and incidence 1.7 per 100 person years, a vaccine with only 30% preventative efficacy could make a substantial difference in the rate with which HIV incidence declines; the impact on incidence in relative terms is projected to increase over time, with a projected 67% lower HIV incidence in 2060 compared with no vaccine introduction. The projected mean decline in the general adult population death rate 2040-2060 is 11%. A vaccine with no prevention efficacy but which reduces viral load by 1 log is predicted to result in a modest (14% reduction in HIV incidence and an 8% reduction in death rate in the general adult population (mean 2040-2060. These effects were broadly similar in multivariable uncertainty analysis.Introduction of a partially effective preventive HIV vaccine would make a substantial long-term impact on HIV epidemics in southern Africa, in addition to the effects of ART. Development of an HIV vaccine, even of relatively low apparent efficacy at the individual level, remains a critical global public health goal.

  2. Incidence and Risk Factors for Delirium among Mechanically Ventilated Patients in an African Intensive Care Setting: An Observational Multicenter Study

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    Arthur Kwizera

    2015-01-01

    Full Text Available Aim. Delirium is common among mechanically ventilated patients in the intensive care unit (ICU. There are little data regarding delirium among mechanically ventilated patients in Africa. We sought to determine the burden of delirium and associated factors in Uganda. Methods. We conducted a multicenter prospective study among mechanically ventilated patients in Uganda. Eligible patients were screened daily for delirium using the confusional assessment method (CAM-ICU. Comparisons were made using t-test, chi-squares, and Fisher’s exact test. Predictors were assessed using logistic regression. The level of statistical significance was set at P<0.05. Results. Of 160 patients, 81 (51% had delirium. Median time to onset of delirium was 3.7 days. At bivariate analysis, history of mental illness, sedation, multiorgan dysfunction, neurosurgery, tachypnea, low mean arterial pressure, oliguria, fevers, metabolic acidosis, respiratory acidosis, anaemia, physical restraints, marital status, and endotracheal tube use were significant predictors. At multivariable analysis, having a history of mental illness, sedation, respiratory acidosis, higher PEEP, endotracheal tubes, and anaemia predicted delirium. Conclusion. The prevalence of delirium in a young African population is lower than expected considering the high mortality. A history of mental illness, anaemia, sedation, endotracheal tube use, and respiratory acidosis were factors associated with delirium.

  3. Feasibility and acceptability of ACT for the community case management of malaria in urban settings in five African sites

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    Traoré Abdoulaye

    2011-08-01

    Full Text Available Abstract Background The community case management of malaria (CCMm is now an established route for distribution of artemisinin-based combination therapy (ACT in rural areas, but the feasibility and acceptability of the approach through community medicine distributors (CMD in urban areas has not been explored. It is estimated that in 15 years time 50% of the African population will live in urban areas and transmission of the malaria parasite occurs in these densely populated areas. Methods Pre- and post-implementation studies were conducted in five African cities: Ghana, Burkina Faso, Ethiopia and Malawi. CMDs were trained to educate caregivers, diagnose and treat malaria cases in Results Qualitative findings: In all sites, interviews revealed that caregivers' knowledge of malaria signs and symptoms improved after the intervention. Preference for CMDs as preferred providers for malaria increased in all sites. Quantitative findings: 9001 children with an episode of fever were treated by 199 CMDs in the five study sites. Results from the CHWs registers show that of these, 6974 were treated with an ACT and 6933 (99% were prescribed the correct dose for their age. Fifty-four percent of the 3,025 children for which information about the promptness of treatment was available were treated within 24 hours from the onset of symptoms. From the household survey 3700 children were identified who had an episode of fever during the preceding two weeks. 1480 (40% of them sought treatment from a CMD and 1213 of them (82% had received an ACT. Of these, 1123 (92.6% were administered the ACT for the correct number of doses and days; 773 of the 1118 (69.1% children for which information about the promptness of treatment was available were treated within 24 hours from onset of symptoms, and 768 (68.7% were treated promptly and correctly. Conclusions The concept of CCMm in an urban environment was positive, and caregivers were generally satisfied with the services

  4. African swine fever in Uganda: qualitative evaluation of three surveillance methods with implications for other resource-poor settings

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    Erika eChenais

    2015-10-01

    Full Text Available Animal diseases impact negatively on households and on national economies. In low-income countries this pertains especially to socio-economic effects on household level. To control animal diseases and mitigate their impact, it is necessary to understand the epidemiology of the disease in its local context. Such understanding, gained through disease surveillance, is often lacking in resource-poor settings. Alternative surveillance methods have been developed to overcome some of the hurdles obstructing surveillance. The objective of this study was to evaluate and qualitatively compare three methods for surveillance of acute infectious diseases using African swine fever (ASF in northern Uganda as an example. Report-driven outbreak investigations, participatory rural appraisals (PRA, and a household survey using a smartphone application were evaluated. All three methods had good disease-detecting capacity, each of them detected many more outbreaks compared to those reported to the World Organization for Animal Health (OIE during the same time period. Apparent mortality rates were similar for the three methods although highest for the report-driven outbreak investigations, followed by the PRAs, and then the household survey. The three methods have different characteristics and the method of choice will depend on the surveillance objective. The optimal situation might be achieved by a combination of the methods: outbreak detection via smartphone-based real-time surveillance, outbreak investigation for collection of biological samples, and a PRA for a better understanding of the epidemiology of the specific outbreak. All three methods require initial investments and continuous efforts. The sustainability of the surveillance system should therefore be carefully evaluated before making such investments.

  5. Taxonomy of Atlantic Central African Orchids 1. A New Species of Angraecum set. Pectinaria (Orchidaceae) from Gabon and Equatorial Guinea.

    NARCIS (Netherlands)

    Stévart, T.; Cawoy, V.; Damen, T.H.J.; Droissart, V.

    2010-01-01

    During a recent survey of Atlantic central African orchids, we collected four orchid specimens in Rio Muni (Equatorial Guinea) that share the general morphology of Angraecum gabonense, the most frequent member of Angraecum section Pectinaria in Central Africa, but differ in leaf shape and flower siz

  6. Validation and pharmacokinetic application of a high-performance liquid chromatographic technique for determining the concentrations of amodiaquine and its metabolite in plasma of patients treated with oral fixed-dose amodiaquine-artesunate combination in areas of malaria endemicity.

    Science.gov (United States)

    Adedeji, Olumuyiwa N; Bolaji, Oluseye O; Falade, Catherine O; Osonuga, Odusoga A; Ademowo, Olusegun G

    2015-09-01

    Artemisinin-based combination therapies (ACTs) have been adopted by most African countries, including Nigeria, as first-line treatments for uncomplicated falciparum malaria. Fixed-dose combinations of these ACTs, amodiaquine-artesunate (FDC AQAS) and artemether-lumefantrine (AL), were introduced in Nigeria to improve compliance and achieve positive outcomes of malaria treatment. In order to achieve clinical success with AQAS, we developed and validated a simple and sensitive high-performance liquid chromatography (HPLC) method with UV detection for determination of amodiaquine (AQ) and desethylamodiaquine (DAQ) in plasma using liquid-liquid extraction of the drugs with diethyl ether following protein precipitation with acetonitrile. Chromatographic separation was achieved using an Agilent Zorbax C18 column and a mobile phase consisting of distilled water-methanol (80:20 [vol/vol]) with 2% (vol/vol) triethylamine, pH 2.2, at a flow rate of 1 ml/min. Calibration curves in spiked plasma were linear from 100 to 1,000 ng/ml (r > 0.99) for both AQ and DAQ. The limit of detection was 1 ng (sample size, 20 μl). The intra- and interday coefficients of variation at 150, 300, and 900 ng/ml ranged from 1.3 to 4.8%, and the biases were between 6.4 and 9.5%. The mean extraction recoveries of AQ and DAQ were 80.0% and 68.9%, respectively. The results for the pharmacokinetic parameters of DAQ following oral administration of FDC AQAS (612/200 mg) for 3 days in female and male patients with uncomplicated falciparum malaria showed that the maximum plasma concentrations (C max) (740 ± 197 versus 767 ± 185 ng/ml), areas under the plasma concentration-time curve (AUC) (185,080 ± 20,813 versus 184,940 ± 16,370 h · ng/ml), and elimination half-life values (T 1/2) (212 ± 1.14 versus 214 ± 0.84 h) were similar (P > 0.05).

  7. Optimum allocation of conservation funds and choice of conservation programs for a set of African cattle breeds

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    Abdulai Awudu

    2006-01-01

    Full Text Available Abstract Although funds for livestock conservation are limited there is little known about the optimal allocation of conservation funds. A new algorithm was used to allocate Mio US$ 1, 2, 3, 5 or unlimited funds, discounted over 50 years, on 23 African cattle breeds conserved with four different possible conservation programs. Additionally, Mio US$ 1 was preferably allocated to breeds with special traits. The conceptional in situ conservation programs strongly involve breeders and give them part of the responsibility for the conservation of the breed. Therefore, the pure in situ conservation was more efficient than cryoconservation or combined in situ and cryoconservation. The average annual discounted conservation cost for a breed can be as low as US$ 1000 to US$ 4400 depending on the design of the conservation program and the economic situation of the country of conservation. The choice of the breeds and the optimal conservation program and the amount of money allocated to each breed depend on many factors such as the amount of funds available, the conservation potential of each breed, the effects of the conservation program as well as its cost. With Mio US$ 1, 64% of the present diversity could be maintained over 50 years, which is 13% more than would be maintained if no conservation measures were implemented. Special traits could be conserved with a rather small amount of the total funds. Diversity can not be conserved completely, not even with unlimited funds. A maximum of 92% of the present diversity could be conserved with Mio US$ 10, leaving 8% of the diversity to unpredictable happenings. The suggested algorithm proved to be useful for optimal allocation of conservation funds. It allocated the funds optimally among breeds by identifying the most suited conservation program for each breed, also accounting for differences in currency exchange rates between the different countries.

  8. 安徽省北部疟疾流行区中华按蚊溴氰菊酯抗性现状%Investigation of Anopheles sinensis resistance to deltamethrin in the malaria-endemic northern part of Anhui Province, China

    Institute of Scientific and Technical Information of China (English)

    武松; 刘莉莉; 刘茜; 仰凤桃; 陈道俊; 岳星星; 林玲; 张直林; 孙东旭; 刘雷

    2011-01-01

    目的 探明安徽省北部疟疾流行区中华按蚊的溴氰菊酯抗性现状. 方法 选择涡阳县临湖镇、蒙城县坛城镇、太和县大新镇、利辛县纪五场乡,每乡镇各选取1个自然村,于2011年7~8月采用牛诱和猪诱法捕获饱血中华按蚊,采用WHO推荐的成蚊接触筒法进行按蚊敏感性测试. 结果 涡阳县临湖镇,蒙城县坛城镇、太和县大新镇、利辛县纪五场乡捕获的中华按蚊0.05%溴氰菊酯击倒率分别为2.73%、4.9%、4.72%和6.42%,校正死亡率分别为6.54%、7.78%、9.27%和11.18%,均为抗性群体. 结论 安徽省北部疟疾流行区中华按蚊已经对溴氰菊酯产生明显抗性.%Objective To determine the resistance of Anopheles sinensis to deltamethrin in the malaria-endemic northern part of Anhui Province. Methods An. sinensis adults were collected in pig- and cow-baited traps in July and August 2011. Standards assays recommended by the WHO were used to test F0 generation females. Mortality was recorded 24 hours after exposure. Results An. sinensis from Guoyang, Mencheng, Taihe, and Lixin counties was knocked down with 0.05% deltamethrin at a rate of 2. 73%, 4. 9%, 4. 72%, and 6. 42%, respectively. And with mortality were 6. 54% , 7. 78% , 9. 27% , 11. 18% , respectively. Conclusion An. sinensis a main vector of malaria in the malaria-en-demic northern part of Anhui Province, had marked resistance to deltamethrin.

  9. Text Messaging to Improve Hypertension Medication Adherence in African Americans From Primary Care and Emergency Department Settings: Results From Two Randomized Feasibility Studies

    Science.gov (United States)

    Hirzel, Lindsey; Dawood, Rachelle M; Dawood, Katee L; Nichols, Lauren P; Artinian, Nancy T; Schwiebert, Loren; Yarandi, Hossein N; Roberson, Dana N; Plegue, Melissa A; Mango, LynnMarie C; Levy, Phillip D

    2017-01-01

    Background Hypertension (HTN) is an important problem in the United States, with an estimated 78 million Americans aged 20 years and older suffering from this condition. Health disparities related to HTN are common in the United States, with African Americans suffering from greater prevalence of the condition than whites, as well as greater severity, earlier onset, and more complications. Medication adherence is an important component of HTN management, but adherence is often poor, and simply forgetting to take medications is often cited as a reason. Mobile health (mHealth) strategies have the potential to be a low-cost and effective method for improving medication adherence that also has broad reach. Objective Our goal was to determine the feasibility, acceptability, and preliminary clinical effectiveness of BPMED, an intervention designed to improve medication adherence among African Americans with uncontrolled HTN, through fully automated text messaging support. Methods We conducted two parallel, unblinded randomized controlled pilot trials with African-American patients who had uncontrolled HTN, recruited from primary care and emergency department (ED) settings. In each trial, participants were randomized to receive either usual care or the BPMED intervention for one month. Data were collected in-person at baseline and one-month follow-up, assessing the effect on medication adherence, systolic and diastolic blood pressure (SBP and DBP), medication adherence self-efficacy, and participant satisfaction. Data for both randomized controlled pilot trials were analyzed separately and combined. Results A total of 58 primary care and 65 ED participants were recruited with retention rates of 91% (53/58) and 88% (57/65), respectively. BPMED participants consistently showed numerically greater, yet nonsignificant, improvements in measures of medication adherence (mean change 0.9, SD 2.0 vs mean change 0.5, SD 1.5, P=.26), SBP (mean change –12.6, SD 24.0 vs mean change

  10. Improved antiretroviral treatment outcome in a rural African setting is associated with cART initiation at higher CD4 cell counts and better general health condition

    Directory of Open Access Journals (Sweden)

    Geubbels Eveline

    2011-04-01

    Full Text Available Abstract Background Data on combination antiretroviral therapy (cART in remote rural African regions is increasing. Methods We assessed prospectively initial cART in HIV-infected adults treated from 2005 to 2008 at St. Francis Designated District Hospital, Ifakara, Tanzania. Adherence was assisted by personal adherence supporters. We estimated risk factors of death or loss to follow-up by Cox regression during the first 12 months of cART. Results Overall, 1,463 individuals initiated cART, which was nevirapine-based in 84.6%. The median age was 40 years (IQR 34-47, 35.4% were males, 7.6% had proven tuberculosis. Median CD4 cell count was 131 cells/μl and 24.8% had WHO stage 4. Median CD4 cell count increased by 61 and 130 cells/μl after 6 and 12 months, respectively. 215 (14.7% patients modified their treatment, mostly due to toxicity (56%, in particular polyneuropathy and anemia. Overall, 129 patients died (8.8% and 189 (12.9% were lost to follow-up. In a multivariate analysis, low CD4 cells at starting cART were associated with poorer survival and loss to follow-up (HR 1.77, 95% CI 1.15-2.75, p = 0.009; for CD4 100 cells/μl. Higher weight was strongly associated with better survival (HR 0.63, 95% CI 0.51-0.76, p Conclusions cART initiation at higher CD4 cell counts and better general health condition reduces HIV related mortality in a rural African setting. Efforts must be made to promote earlier HIV diagnosis to start cART timely. More research is needed to evaluate effective strategies to follow cART at a peripheral level with limited technical possibilities.

  11. Mapping internal connectivity through human migration in malaria endemic countries.

    Science.gov (United States)

    Sorichetta, Alessandro; Bird, Tom J; Ruktanonchai, Nick W; Zu Erbach-Schoenberg, Elisabeth; Pezzulo, Carla; Tejedor, Natalia; Waldock, Ian C; Sadler, Jason D; Garcia, Andres J; Sedda, Luigi; Tatem, Andrew J

    2016-08-16

    Human mobility continues to increase in terms of volumes and reach, producing growing global connectivity. This connectivity hampers efforts to eliminate infectious diseases such as malaria through reintroductions of pathogens, and thus accounting for it becomes important in designing global, continental, regional, and national strategies. Recent works have shown that census-derived migration data provides a good proxy for internal connectivity, in terms of relative strengths of movement between administrative units, across temporal scales. To support global malaria eradication strategy efforts, here we describe the construction of an open access archive of estimated internal migration flows in endemic countries built through pooling of census microdata. These connectivity datasets, described here along with the approaches and methods used to create and validate them, are available both through the WorldPop website and the WorldPop Dataverse Repository.

  12. Best practices in developing a national palliative care policy in resource limited settings: lessons from five African countries.

    Science.gov (United States)

    Luyirika, Emmanuel Bk; Namisango, Eve; Garanganga, Eunice; Monjane, Lidia; Ginindza, Ntombi; Madonsela, Gugulethu; Kiyange, Fatia

    2016-01-01

    Given the high unmet need for palliative care in Africa and other resource limited settings, it is important that countries embrace the public health approach to increasing access through its integration within existing healthcare systems. To give this approach a strong foundation that would ensure sustainability, the World Health Organisation urges member states to ensure that policy environments are suitable for this intervention. The development, strengthening, and implementation of national palliative care policies is a priority. Given the lack of a critical mass of palliative care professionals in the region and deficiency in documenting and sharing best practices as part of information critical for regional development, policy development becomes a complex process. This article shares experiences with regard to best practices when advocating the national palliative care policies. It also tells about policy development process, the important considerations, and cites examples of policy content outlines in Africa.

  13. The Relationship Between Body Fat Percentage and Body Mass Index in Overweight and Obese Individuals in an Urban African Setting

    Science.gov (United States)

    Phillips, Julie S.; Igumbor, Ehimario U.

    2016-01-01

    The increase in the prevalence of overweight and obesity in both developed and developing countries is associated with musculoskeletal and other non-communicable diseases. To address this, an accurate measure of body adiposity, bearing in mind several shortcomings of body mass index (BMI), should be used. This study determined the relationship between BMI and body fat (BF)% among adult Nigerians of different ethnic groups residing in an urban setting. Using multistage cluster sampling technique were recruited 1571 subjects (>18 years; male=51.2%) in a cross-sectional study. Body adiposity indices were assessed using BMI and BF%. Using BF%, the result shows that a total number of 156 (9.9%) had low BF% while 291 (18.5%) had very high BF%, while the BMI classifications of body adiposity, 68 (4.3%) were underweight while 271 (17.3%) were obese. There was a strong and positive statistical relationship between BF% and BMI when both were paired without controlling for gender and age (r=0.81, PBMI and BF%, and age and sex are predictors of this association.

  14. Diabetes Mellitus: Indigenous naming, indigenous diagnosis and self-management in an African setting: the example from Cameroon

    Directory of Open Access Journals (Sweden)

    Awah Paschal K

    2009-02-01

    Full Text Available Abstract Background The objective was to examine how the indigenous naming, indigenous self-diagnosis and management of diabetes evolved with awareness in order to develop a socially oriented theoretical model for its care. Methods The data was collected through a one-year extended participant observation in Bafut, a rural health district of Cameroon. The sample consisted of 72 participants in a rural health district of Cameroon (men and women with type 2 diabetes. We used participant observation to collect data through focus group discussions, in depth interviews and fieldwork conversations. The method of analysis entailed a thick description, thematic analysis entailing constant comparison within and across FGD and across individual participants and content analysis. Results The core concepts identified were the evolution of names for diabetes and the indigenous diagnostic and self-management procedures. Participants fell into one of two naming typologies: (a Naming excluding any signs and symptoms of diabetes; (b naming including signs and symptoms of diabetes. Participants fell into two typologies of diagnostic procedures: (a those that use indigenous diagnostic procedures for monitoring and controlling diabetes outcomes and b those that had initially used it only for diagnosis and continued to use them for self management. These typologies varied according to how participants' awareness evolved and the impact on self-diagnosis and management. Conclusion The evolution of names for diabetes was an important factor that influenced the subsequent self-diagnosis and management of diabetes in both traditional and modern biomedical settings.

  15. Metabolic syndrome in type 2 diabetes: comparative prevalence according to two sets of diagnostic criteria in sub-Saharan Africans

    Directory of Open Access Journals (Sweden)

    Kengne Andre P

    2012-05-01

    Full Text Available Abstract Background Available definition criteria for metabolic syndrome (MS have similarities and inconsistencies. The aim of this study was to determine the prevalence of MS in a group of Cameroonians with type 2 diabetes, according to the International Diabetes Federation (IDF and the National Cholesterol Education Programme Adult Treatment Panel III (NCEP-ATP III criteria, and to assess the concordance between both criteria, and the implications of combining them. Methods We collected clinical and biochemical data for 308 patients with type 2 diabetes (men 157 at the National Obesity Center of the Yaounde Central Hospital, Cameroon. Concordance was assessed with the use of the Kappa statistic. Results Mean age (standard deviation was 55.8 (10.5 years and the median duration of diagnosed diabetes (25th–75th percentiles was 3 years (0.5–5.0, similarly among men and women. The prevalence of MS was 71.7% according to the IDF criteria and 60.4% according to NCEP-ATP III criteria. The prevalence was significantly higher in women than in men independently of the criteria used (both p  Conclusions The IDF and NCEP-ATP III criteria do not always diagnose the same group of diabetic individuals with MS and combining them merely increases the yield beyond that provided by the IDF definition alone. This study highlights the importance of having a single unifying definition for MS in our setting.

  16. Chlamydia trachomatis, human immunodeficiency virus (HIV distribution and sexual behaviors across gender and age group in an African setting.

    Directory of Open Access Journals (Sweden)

    Joel Fleury Djoba Siawaya

    Full Text Available OBJECTIVE: The purpose of this study was to (1 describe the distribution of Chlamydia trachomatis (CT and Human Immunodeficiency Virus (HIV cases across gender and age groups in Libreville (Gabon; (2 examine Gabonese Sexually Transmitted Infections (STIs-related risk behaviour. METHODS: The sampled population was people attending the "Laboratoire National de Santé Plublique". Between 2007 and 2011, 14 667 and 9 542 people respectively, were tested for CT and HIV infections. 1 854 of them were tested for both infections. We calculated CT and HIV rates across gender and age groups. Also analysed was the groups' contribution to the general CT and HIV epidemiology. STIs-related risk behaviours were assessed in 224 men and 795 women (between July 2011 and March 2013 who agreed and answered a questionnaire including questions on their marital status, number of sex partners, sexual practices, history of STIs, sex frequency and condom use. RESULTS: Data showed a 24% dropped in the CT infection rate between 2007 and 2010, followed by a 14% increase in 2011. The HIV infection rates for the same period were between 15% and 16%. The risk of a CT-positive subject getting HIV is about 0.71 times the risk of a CT-negative subject. Young adult aged between 18 and 35 years old represented 65.2% of people who had STIs. 80% of women and 66% of men confessed to an inconsistent use of condoms. 11.6% of women and 48% of men declared having multiple sex partners. 61% of questioned women and 67% of men declared knowing their HIV status. CONCLUSIONS: In this Gabonese setting, the population-aged from 18 to 35 years is the most affected by STIs. Other matters of concern are the inconsistent use of protection and sex with non-spousal or non-life partners.

  17. The Malawi Developmental Assessment Tool (MDAT: the creation, validation, and reliability of a tool to assess child development in rural African settings.

    Directory of Open Access Journals (Sweden)

    Melissa Gladstone

    2010-05-01

    between malnourished children and controls. In terms of pass/fail, 28% of malnourished children versus 94% of controls passed the test overall. CONCLUSIONS: A culturally relevant developmental assessment tool, the MDAT, has been created for use in African settings and shows good reliability, validity, and sensitivity for identification of children with neurodisabilities.

  18. Incarceration history relative to health, substance use, and violence in a sample of vulnerable South African women: implications for health services in criminal justice settings

    Directory of Open Access Journals (Sweden)

    Johnson JE

    2012-02-01

    Full Text Available Jennifer E Johnson1, Tara Carney2, Tracy Kline3, Felicia A Browne4, Wendee M Wechsberg41Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA; 2Alcohol and Drug Abuse Research Unit, Medical Research Council, Cape Town, South Africa; 3Statistics and Epidemiology, RTI International, Research Triangle Park, NC, USA; 4Substance Abuse Treatment Evaluations and Interventions, RTI International, Research Triangle Park, NC, USAAbstract: International research has suggested that women in the criminal justice system carry a higher burden of many illnesses than women in the community, especially mental health disorders, substance use disorders, sexually transmitted infections, and a history of violent victimization. Knowledge of these health disparities is often used to advocate for relevant screening and treatment services for women passing through criminal justice custody within US and European settings. However, almost all criminal justice health research has taken place in high-income countries, with little or no research taking place in other countries, especially in South Africa. This baseline analysis compares the health, substance use, and violent victimization of women who have ever been incarcerated to those who have not, in a cross-sectional sample of 720 young, vulnerable, substance-using women in Cape Town, South Africa. Results of univariate tests indicated that women who had ever been incarcerated had worse health, mental health, and sexually transmitted infection indicators and were more likely to report use of substances and to have been victims of physical and sexual assault than women who had never been incarcerated. Passing through the criminal justice system appears to be a marker for a variety of current and/or future health service needs among vulnerable South African women, suggesting that screening, prevention, and treatment referral efforts at the time of intersection with the criminal justice system

  19. Advancing Understanding of the Characteristics and Capacity of African American Women Who Serve as Lay Health Advisors in Community-Based Settings

    Science.gov (United States)

    Shelton, Rachel C.; Dunston, Sheba King; Leoce, Nicole; Jandorf, Lina; Thompson, Hayley S.; Erwin, Deborah O.

    2017-01-01

    Lay Health Advisor (LHA) programs hold tremendous promise for reducing health disparities and addressing social determinants of health in medically underserved communities, including African American populations. Very little is understood about the capacity of LHAs in these roles and the broader contributions they make to their communities. This…

  20. Influences on HIV Testing among Young African-American Men Who Have Sex with Men and the Moderating Effect of the Geographic Setting

    Science.gov (United States)

    Mashburn, Andrew J.; Peterson, John L.; Bakeman, Roger; Miller, Robin L.; Clark, Leslie F.

    2004-01-01

    This study examined the influence of demographic characteristics, risk behaviors, knowledge, and psychosocial variables on HIV testing among a sample (n = 551) of young African-American men who have sex with men (MSM) from three cities--Atlanta (n = 241), Birmingham (n = 174), and Chicago (n = 136). Among the entire sample of young men, age,…

  1. African Literature

    OpenAIRE

    Recek, Denis

    2011-01-01

    The topic of this diploma is the formation and shaping of African literature. The first chapter is about the beginning of African literature. It describes oral literature and its transmission into written literature. Written African literature had great problems in becoming a part of world literature because of its diversity of languages and dialects. Christianity and Islam are mentioned as two religions which had a great impact on African literature. Colonialism is broadly described as an es...

  2. Benefiting Africans

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Along with thriving Sino-African economic and trade ties,Chinese companies have attached greater importance to their social responsibility to Africans.More than 2,000 sweaters woven by Chinese mothers were sent to orphans and disabled children in Kenya and four other African countries in September. This activity was launched by Hengyuanxiang,aleading Chinese wool manufacturer.

  3. Benefiting Africans

    Institute of Scientific and Technical Information of China (English)

    ZHANG ZHIPING

    2011-01-01

    Along with thriving Sino-African economic and trade ties,Chinese companies have attached greater importance to their social responsibility to Africans.More than 2,000 sweaters woven by Chinese mothers were sent to orphans and disabled children in Kenya and four other African countries in September.This activity was launched by Hengyuanxiang,a leading Chinese wool manufacturer.

  4. Socio-Demographics and the Development of Malaria Elimination Strategies in the Low Transmission Setting

    Science.gov (United States)

    Chuquiyauri, Raul; Paredes, Maribel; Peñataro, Pablo; Torres, Sonia; Marin, Silvia; Tenorio, Alexander; Brouwer, Kimberly C.; Abeles, Shira; Llanos-Cuentas, Alejandro; Gilman, Robert H.; Kosek, Margaret; Vinetz, Joseph M.

    2011-01-01

    This analysis presents a comprehensive description of malaria burden and risk factors in Peruvian Amazon villages where malaria transmission is hypoendemic. More than 9,000 subjects were studied in contrasting village settings within the Department of Loreto, Peru, where most malaria occurs in the country. Plasmodium vivax is responsible for more than 75% of malaria cases; severe disease from any form of malaria is uncommon and death rare. The association between lifetime malaria episodes and individual and household covariates was studied using polychotomous logistic regression analysis, assessing effects on odds of some vs. no lifetime malaria episodes. Malaria morbidity during lifetime was strongly associated with age, logging, farming, travel history, and living with a logger or agriculturist. Select groups of adults, particularly loggers and agriculturists acquire multiple malaria infections in transmission settings outside of the main domicile, and may be mobile human reservoirs by which malaria parasites move within and between micro-regions within malaria endemic settings. For example, such individuals might well be reservoirs of transmission by introducing or reintroducing malaria into their home villages and their own households, depending on vector ecology and the local village setting. Therefore, socio-demographic studies can identify people with the epidemiological characteristic of transmission risk, and these individuals would be prime targets against which to deploy transmission blocking strategies along with insecticide treated bednets and chemoprophylaxis. PMID:22100446

  5. Socio-demographics and the development of malaria elimination strategies in the low transmission setting.

    Science.gov (United States)

    Chuquiyauri, Raul; Paredes, Maribel; Peñataro, Pablo; Torres, Sonia; Marin, Silvia; Tenorio, Alexander; Brouwer, Kimberly C; Abeles, Shira; Llanos-Cuentas, Alejandro; Gilman, Robert H; Kosek, Margaret; Vinetz, Joseph M

    2012-03-01

    This analysis presents a comprehensive description of malaria burden and risk factors in Peruvian Amazon villages where malaria transmission is hypoendemic. More than 9000 subjects were studied in contrasting village settings within the Department of Loreto, Peru, where most malaria occurs in the country. Plasmodium vivax is responsible for more than 75% of malaria cases; severe disease from any form of malaria is uncommon and death rare. The association between lifetime malaria episodes and individual and household covariates was studied using polychotomous logistic regression analysis, assessing effects on odds of some vs. no lifetime malaria episodes. Malaria morbidity during lifetime was strongly associated with age, logging, farming, travel history, and living with a logger or agriculturist. Select groups of adults, particularly loggers and agriculturists acquire multiple malaria infections in transmission settings outside of the main domicile, and may be mobile human reservoirs by which malaria parasites move within and between micro-regions within malaria endemic settings. For example, such individuals might well be reservoirs of transmission by introducing or reintroducing malaria into their home villages and their own households, depending on vector ecology and the local village setting. Therefore, socio-demographic studies can identify people with the epidemiological characteristic of transmission risk, and these individuals would be prime targets against which to deploy transmission blocking strategies along with insecticide treated bednets and chemoprophylaxis.

  6. DEBUNKING PATRIARCHAL LEGACY IN AFRICAN TRADITIONAL SETTING: A READING OF EFO KODJO MAWUGBE’S IN THE CHEST OF A WOMAN

    Directory of Open Access Journals (Sweden)

    Damlègue Lare

    2015-05-01

    Full Text Available This article investigates the critical views of Efo Kodjo Mawugbe on some African traditional customs which deny identity and welfare to women and his literary endeavor to unravel the patriarchal legacy in his In the Chest of a Woman. It examines the dictates of patriarchy that militate against females’ emancipation and lay a foundation for their marginalization and oppression. It attempts to read Mawugbe’s call for gender balance and equal treatment for men and women in modern society. Two sexist practices are targeted: the denial of inheritance rights to female children and the capital punishment of those who go against tradition by becoming pregnant out of customary wedlock. The study asserts that if modern African society should experience a participatory socio-economic development it is urgent to end sexism and gender oppression in families and society, and to give men and women equal opportunities to emerge as fulfilled free beings. Keywords: debunk, patriarchy, gender oppression, sexism, education. // EL DESCRÉDITO DEL LEGADO PATRIARCAL EN EL CONTEXTO AFRICANO TRADICIONAL: IN THE CHEST OF A WOMAN DE EFO KODJO MAWUGBE. Este artículo investiga las visión crítica de Efo Kodjo Mawugbe sobre las tradiciones africanas que niegan la identidad y el bienestar a la mujer y analiza su interés literario por desactivar la herencia patriarcal en la obra de teatro In the Chest of a Woman. La obra examina los dictados del patriarcado que operan en contra de la emancipación de la mujer y fundamentan su marginación y opresión. En el presente artículo se aprecia la defensa de Mawugbe del equilibrio entre sexos y el tratamiento equitativo para hombres y mujeres en la sociedad moderna. Se apuntan también dos prácticas sexistas: la negación del derecho a heredar de las niñas y la pena capital impuesta a aquellas mujeres que se oponen a la tradición quedando embarazadas fuera del matrimonio. El estudio concluye que, para que la sociedad

  7. Emergency obstetrical complications in a rural African setting (Kayes, Mali): the link between travel time and in-hospital maternal mortality.

    Science.gov (United States)

    Pirkle, Catherine McLean; Fournier, Pierre; Tourigny, Caroline; Sangaré, Karim; Haddad, Slim

    2011-10-01

    The West African country of Mali implemented referral systems to increase spatial access to emergency obstetrical care and lower maternal mortality. We test the hypothesis that spatial access- proxied by travel time during the rainy and dry seasons- is associated with in-hospital maternal mortality. Effect modification by caesarean section is explored. All women treated for emergency obstetrical complications at the referral hospital in Kayes, Mali were considered eligible for study. First, we conducted descriptive analyses of all emergency obstetrical complications treated at the referral hospital between 2005 and 2007. We calculated case fatality rates by obstetric diagnosis and travel time. Key informant interviews provided travel times. Medical registers provided clinical and demographic data. Second, a matched case-control study assessed the independent effect of travel time on maternal mortality. Stratification was used to explore effect modification by caesarean section. Case fatality rates increased with increasing travel time to the hospital. After controlling for age, diagnosis, and date of arrival, a travel time of four or more hours was significantly associated with in-hospital maternal mortality (OR: 3.83; CI: 1.31-11.27). Travel times between 2 and 4 h were associated with increased odds of maternal mortality (OR 1.88), but the relationship was not significant. The effect of travel time on maternal mortality appears to be modified by caesarean section. Poor spatial access contributes to maternal mortality even in women who reach a health facility. Improving spatial access will help women arrive at the hospital in time to be treated effectively.

  8. A model for the roll-out of comprehensive adult male circumcision services in African low-income settings of high HIV incidence: the ANRS 12126 Bophelo Pele Project.

    Directory of Open Access Journals (Sweden)

    Pascale Lissouba

    2010-07-01

    Full Text Available BACKGROUND: World Health Organization (WHO/Joint United Nations Programme on AIDS (UNAIDS has recommended adult male circumcision (AMC for the prevention of heterosexually acquired HIV infection in men from communities where HIV is hyperendemic and AMC prevalence is low. The objective of this study was to investigate the feasibility of the roll-out of medicalized AMC according to UNAIDS/WHO operational guidelines in a targeted African setting. METHODS AND FINDINGS: The ANRS 12126 "Bophelo Pele" project was implemented in 2008 in the township of Orange Farm (South Africa. It became functional in 5 mo once local and ethical authorizations were obtained. Project activities involved community mobilization and outreach, as well as communication approaches aimed at both men and women incorporating broader HIV prevention strategies and promoting sexual health. Free medicalized AMC was offered to male residents aged 15 y and over at the project's main center, which had been designed for low-income settings. Through the establishment of an innovative surgical organization, up to 150 AMCs under local anesthesia, with sterilized circumcision disposable kits and electrocautery, could be performed per day by three task-sharing teams of one medical circumciser and five nurses. Community support for the project was high. As of November 2009, 14,011 men had been circumcised, averaging 740 per month in the past 12 mo, and 27.5% of project participants agreed to be tested for HIV. The rate of adverse events, none of which resulted in permanent damage or death, was 1.8%. Most of the men surveyed (92% rated the services provided positively. An estimated 39.1% of adult uncircumcised male residents have undergone surgery and uptake is steadily increasing. CONCLUSION: This study demonstrates that a quality AMC roll-out adapted to African low-income settings is feasible and can be implemented quickly and safely according to international guidelines. The project can be

  9. Gender obesity inequities are huge but differ greatly according to environment and socio-economics in a North African setting: a national cross-sectional study in Tunisia.

    Directory of Open Access Journals (Sweden)

    Jalila El Ati

    Full Text Available INTRODUCTION: Southern Mediterranean countries have experienced a marked increase in the prevalence of obesity whose consequences for gender related health inequities have been little studied. We assessed gender obesity inequalities and their environmental and socio-economic modifiers among Tunisian adults. METHODS: Cross-sectional survey in 2005; national, 3 level random cluster sample of 35-70 years Tunisians (women: n = 2964, men: n = 2379. Overall adiposity was assessed by BMI = weight(kg/height(m(2 and obesity was BMI≥30, WHtR = waist circumference to height ratio defined abdominal obesity as WHtR≥0.6. Gender obesity inequality measure was women versus men Prevalence Proportion Odds-Ratio (OR; models featuring gender x covariate interaction assessed variation of gender obesity inequalities with area (urban versus rural, age, marital status or socio-economic position (profession, education, household income proxy. RESULTS: BMI was much higher among women (28.4(0.2 versus men (25.3(0.1, P<0.0001 as was obesity (37.0% versus 13.3%, OR = 3.8[3.1-7.4], P<0.0001 and abdominal obesity (42.6% versus 15.6%, 4.0[3.3-4.8], P<0.0001. Gender obesity inequalities (women versus men adjusted OR were higher in urban (OR = 3.3[1.3-8.7] than rural (OR = 2.0[0.7-5.5] areas. These gender obesity inequalities were lower for subjects with secondary education or more (OR = 3.3[1.3-8.6], than among those with no schooling (OR = 6.9[2.0-23.3]. They were also lower for those with upper/intermediate profession (OR = 1.4[0.5-4.3] or even employees/workers OR = 2.3[1.0-5.4] than those not professionaly active at all (OR = 3.3[1.3-8.6]. Similar results were observed for addominal obesity. CONCLUSION: The huge overall gender obesity inequities (women much more corpulent than men were higher in urban settings, but lower among subjects of higher education and professional activity. Reasons for gender inequalities in

  10. African America.

    Science.gov (United States)

    Brodie, Carolyn S.; Brown, Gloria

    1994-01-01

    Presents an annotated bibliography of quality materials by and about African Americans in the areas of poetry, music, folklore, women, picture books, history/collective biography, authors, and professional materials. Activities are suggested in each area for Black History Month. (LRW)

  11. The African Union

    DEFF Research Database (Denmark)

    Mandrup, Thomas; Mandrup, Bjørn

    2009-01-01

    . Moreover, the ‘African Security Architecture’, of which it is the central component, also includes sub-regional organisations to which responsibility is to be devolved for dealing with armed confl ict and other matters. These so-called Regional Economic Communities (RECs) are, likewise, constantly changing......The African Union (AU) is a young international organisation, founded in 2002, which is still in the process of setting up its various institutions, while constantly having to face up to new challenges, such as civil wars breaking out and military coups being undertaken in its member states......, just as they have very different strengths. Hence, any account of the AU and the RECs can only provide a ‘snapshot’ of the organisation at any given time, one which may soon become outdated. In contrast with regional and sub-regional organisations in the North, those in Africa are facing an additional...

  12. African-American Biography.

    Science.gov (United States)

    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,"…

  13. African Trypanosomiasis

    Science.gov (United States)

    2011-06-01

    Histol. 1977;375:53- 70. 42. Poltera AA, Owor R, Cox JN. Pathological aspects of human African trypanosomiasis (HAT) in Uganda. A post - mortem survey of...nodular lesions , including anthrax or tick bite associated with Rickettsia conorii infection. The chancre is followed by a hemolymphatic stage, dur- ing...electrocardiograph- ic changes and, at times, terminal cardiac insufficiency.41 Pulmonary lesions specifically related to trypanosomiasis are not

  14. Obesity and African Americans

    Science.gov (United States)

    ... Data > Minority Population Profiles > Black/African American > Obesity Obesity and African Americans African American women have the ... ss6304.pdf [PDF | 3.38MB] HEALTH IMPACT OF OBESITY More than 80 percent of people with type ...

  15. An African ethic for nursing?

    Science.gov (United States)

    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).

  16. Bionomics of Anopheles spp. (Diptera: Culicidae) in a malaria endemic region of Sukabumi, West Java, Indonesia.

    Science.gov (United States)

    Stoops, Craig A; Rusmiarto, Saptoro; Susapto, Dwiko; Munif, Amurl; Andris, Heri; Barbara, Kathryn A; Sukowati, Supratman

    2009-12-01

    A 15-month bionomic study of Anopheles species was conducted in two ecologically distinct villages (coastal and upland) of Sukabumi District, West Java, Indonesia from June 2006 to September 2007. Mosquitoes were captured using human-landing collections at both sites. During the study, a total of 17,100 Anopheles mosquitoes comprising 13 Anopheles species were caught: 9,151 at the coastal site and 7,949 at the upland site. Anopheles barbirostris, Anopheles maculatus, and Anopheles vagus were the predominant species caught at the coastal site, and Anopheles aconitus, Anopheles barbirostris, and An. maculatus predominated in the upland site. Overall, species were exophagic at both sites, but there was variation between species. Anopheles aconitus was endophagic at the coastal site, exophagic at the upland site, collected most often in April 2007 and had a peak landing time between 22:00 and 23:00. Anopheles sundaicus was only collected at the coastal site, exophagic, collected most often in October 2006, and had a peak landing time between 19:00 and 20:00. Potential malaria vector species such An. aconitus, An. maculatus, and An. sundaicus were present throughout the year. None of the 7,770 Anopheles tested using CSP-ELISA were positive for malaria, although the risk for malaria outbreaks in Sukabumi district remains high.

  17. Outbreak of Plague in a High Malaria Endemic Region - Nyimba District, Zambia, March-May 2015.

    Science.gov (United States)

    Sinyange, Nyambe; Kumar, Ramya; Inambao, Akatama; Moonde, Loveness; Chama, Jonathan; Banda, Mapopa; Tembo, Elliot; Nsonga, Beron; Mwaba, John; Fwoloshi, Sombo; Musokotwane, Kebby; Chizema, Elizabeth; Kapin'a, Muzala; Hang'ombe, Benard Mudenda; Baggett, Henry C; Hachaambwa, Lottie

    2016-08-12

    Outbreaks of plague have been recognized in Zambia since 1917 (1). On April 10, 2015, Zambia's Ministry of Health was notified by the Eastern Provincial Medical Office of possible bubonic plague cases in Nyimba District. Eleven patients with acute fever and cervical lymphadenopathy had been evaluated at two rural health centers during March 28-April 9, 2015; three patients died. To confirm the outbreak and develop control measures, the Zambia Ministry of Health's Field Epidemiology Training Program (ZFETP) conducted epidemiologic and laboratory investigations in partnership with the University of Zambia's schools of Medicine and Veterinary Medicine and the provincial and district medical offices. Twenty-one patients with clinically compatible plague were identified, with symptom onset during March 26-May 5, 2015. The median age was 8 years, and all patients were from the same village. Blood specimens or lymph node aspirates from six (29%) patients tested positive for Yersinia pestis by polymerase chain reaction (PCR). There is an urgent need to improve early identification and treatment of plague cases. PCR is a potential complementary tool for identifying plague, especially in areas with limited microbiologic capacity. Twelve (57%) patients, including all six with PCR-positive plague and all three who died, also tested positive for malaria by rapid diagnostic test (RDT). Plague patients coinfected with malaria might be misdiagnosed as solely having malaria, and appropriate antibacterial treatment to combat plague might not be given, increasing risk for mortality. Because patients with malaria might be coinfected with other pathogens, broad spectrum antibiotic treatment to cover other pathogens is recommended for all children with severe malaria, until a bacterial infection is excluded.

  18. Environmental characteristics of anopheline mosquito larval habitats in a malaria endemic area in Iran

    Institute of Scientific and Technical Information of China (English)

    Moussa Soleimani-Ahmadi; Hassan Vatandoost; Ahmad-Ali Hanafi-Bojd; Mehdi Zare; Reza Safari; Abdolrasul Mojahedi; Fatemeh Poorahmad-Garbandi

    2013-01-01

    Objective: To determine the effects of environmental parameters of larval habitats on distribution and abundance of anopheline mosquitoes in Rudan county of Iran. Methods: This cross-sectional study was conducted during the mosquito breeding season from February 2010 to October 2011. The anopheline larvae were collected using the standard dipping method. The specimens were identified using a morphological-based key. Simultaneously with larval collection, environmental parameters of the larval habitats including water current and turbidity, sunlight situation, and substrate type of habitats were recorded. Water samples were taken from breeding sites during larval collection. Before collection of samples, the water temperature was measured. The water samples were analysed for turbidity, conductivity, total alkalinity, total dissolved solid, pH and ions including chloride, sulphate, calcium, and magnesium. Statistical correlation analysis and ANOVA test were used to analyze the association between environmental parameters and larval mosquito abundance. Results: In total 2 973 larvae of the genus Anopheles were collected from 25 larval habitats and identified using morphological characters. They comprised of six species:An. dthali turkhudi (3.30%), and An. apoci (1.14%). The most abundant species was An. dthali which were collected from all of the study areas. Larvae of two malaria vectors, An. dthali and An. stephensi, co-existed and collected in a wide range of habitats with different physico-chemical parameters. The most common larval habitats were man-made sites such as sand mining pools with clean and still water. The anopheline mosquitoes also preferred permanent habitats in sunlight with sandy substrates. The results indicated that there was a significant relationship between mean physico-chemical parameters such as water temperature, conductivity, total alkalinity, sulphate, chloride, and mosquito distribution and abundance. Conclusions: The results of this study showed a correlation between certain environmental parameters and mosquito larvae abundance, and these parameters should be considered in planning and implementing larval control programs. (53.21%), An. stephensi (24.22%), An. culicifacies (14.06%), An. superpictus (4.07%), An.

  19. Seasonal Abundance and Host-Feeding Patterns of Anopheline Vectors in Malaria Endemic Area of Iran

    Directory of Open Access Journals (Sweden)

    Hamidreza Basseri

    2010-01-01

    Full Text Available Seasonal abundance and tendency to feed on humans are important parameters to measure for effective control of malaria vectors. The objective of this study was to describe relation between feeding pattern, abundance, and resting behavior of four malaria vectors in southern Iran. This study was conducted in ten indicator villages (based on malaria incidence and entomological indices in mountainous/hilly and plain regions situated south and southeastern Iran. Mosquito vectors were collected from indoor as well as outdoor shelters and the blood meals were examined by ELISA test. Over all 7654 female Anopheles spp. were captured, the most common species were Anopheles stephensi, An. culicifacies, An. fluviatilis, and An. d'thali. The overall human blood index was 37.50%, 19.83%, 16.4%, and 30.1% for An. fluviatilis, An. stephensi, An. culicifacies, and An. d'thali, respectively. In addition, An. fluviatilis fed on human blood during the entire year but the feeding behavior of An. stephensi and An. culicifacies varied according to seasons. Overall, the abundance of the female mosquito positive to human blood was 4.25% per human shelter versus 17.5% per animal shelter. This result indicates that the vectors had tendency to rest in animal shelters after feeding on human. Therefore, vector control measure should be planned based on such as feeding pattern, abundance, and resting behavior of these vectors in the area.

  20. Heart Disease and African Americans

    Science.gov (United States)

    ... Minority Population Profiles > Black/African American > Heart Disease Heart Disease and African Americans Although African American adults are ... were 30 percent more likely to die from heart disease than non-Hispanic whites. African American women are ...

  1. Automated innovative diagnostic, data management and communication tool, for improving malaria vector control in endemic settings.

    Science.gov (United States)

    Vontas, John; Mitsakakis, Konstantinos; Zengerle, Roland; Yewhalaw, Delenasaw; Sikaala, Chadwick Haadezu; Etang, Josiane; Fallani, Matteo; Carman, Bill; Müller, Pie; Chouaïbou, Mouhamadou; Coleman, Marlize; Coleman, Michael

    2016-01-01

    Malaria is a life-threatening disease that caused more than 400,000 deaths in sub-Saharan Africa in 2015. Mass prevention of the disease is best achieved by vector control which heavily relies on the use of insecticides. Monitoring mosquito vector populations is an integral component of control programs and a prerequisite for effective interventions. Several individual methods are used for this task; however, there are obstacles to their uptake, as well as challenges in organizing, interpreting and communicating vector population data. The Horizon 2020 project "DMC-MALVEC" consortium will develop a fully integrated and automated multiplex vector-diagnostic platform (LabDisk) for characterizing mosquito populations in terms of species composition, Plasmodium infections and biochemical insecticide resistance markers. The LabDisk will be interfaced with a Disease Data Management System (DDMS), a custom made data management software which will collate and manage data from routine entomological monitoring activities providing information in a timely fashion based on user needs and in a standardized way. The ResistanceSim, a serious game, a modern ICT platform that uses interactive ways of communicating guidelines and exemplifying good practices of optimal use of interventions in the health sector will also be a key element. The use of the tool will teach operational end users the value of quality data (relevant, timely and accurate) to make informed decisions. The integrated system (LabDisk, DDMS & ResistanceSim) will be evaluated in four malaria endemic countries, representative of the vector control challenges in sub-Saharan Africa, (Cameroon, Ivory Coast, Ethiopia and Zambia), highly representative of malaria settings with different levels of endemicity and vector control challenges, to support informed decision-making in vector control and disease management.

  2. Effects of a community intervention on HIV prevention behaviors among men who experienced childhood sexual or physical abuse in four African settings: findings from NIMH Project Accept (HPTN 043.

    Directory of Open Access Journals (Sweden)

    Joseph Daniels

    Full Text Available There is increased focus on HIV prevention with African men who report experiencing childhood sexual (CSA or physical abuse (CPA.To better understand the effects of a community-based intervention (Project Accept HPTN 043 on HIV prevention behaviors among men who report CSA or CPA experiences.Project Accept compared a community-based voluntary mobile counseling and testing (CBVCT intervention with standard VCT. The intervention employed individual HIV risk reduction planning with motivational interviewing in 34 African communities (16 communities at 2 sites in South Africa, 10 in Tanzania, and 8 in Zimbabwe. Communities were randomized unblinded in matched pairs to CBVCT or SVCT, delivered over 36 months. The post-intervention assessment was conducted using a single, cross-sectional random survey of 18-32 year-old community members (total N = 43,292. We analyzed the effect of the intervention on men with reported CSA or CPA across the African sites. Men were identified with a survey question asking about having experienced CSA or CPA across the lifespan. The effect of intervention on considered outcomes of the preventive behavior was statistically evaluated using the logistic regression models.Across the sites, the rates of CSA or CPA among men indicated that African men reflected the global prevalence (20% with a range of 13-24%. The statistically significant effect of the intervention among these men was seen in their increased effort to receive their HIV test results (OR 2.71; CI: (1.08, 6.82; P: 0.034. The intervention effect on the other designated HIV prevention behaviors was less pronounced.The effect of the intervention on these men showed increased motivation to receive their HIV test results. However, more research is needed to understand the effects of community-based interventions on this group, and such interventions need to integrate other keys predictors of HIV including trauma, coping strategies, and intimate partner violence.

  3. Depression and African Americans

    Science.gov (United States)

    ... You are here Home » Depression And African Americans Depression And African Americans Not “Just the Blues” Clinical ... or spiritual communities. Commonly Asked Questions about Clinical Depression How do I get help for clinical depression? ...

  4. Linguistic Imperialism: African Perspectives.

    Science.gov (United States)

    Phillipson, Robert

    1996-01-01

    Responds to an article on aspects of African language policy and discusses the following issues: multilingualism and monolingualism, proposed changes in language policy from the Organization for African Unity and South African initiatives, the language of literature, bilingual education, and whose interests English-language teaching is serving.…

  5. Spacing and crowding among African and Caucasian children.

    NARCIS (Netherlands)

    Mugonzibwa, E.A.; Eskeli, R.; Laine-Alava, M.T.; Kuijpers-Jagtman, A.M.; Katsaros, C.

    2008-01-01

    OBJECTIVE: To determine spacing and crowding according to ethnic group, gender and dental emergence stage among Tanzanian African and Caucasian children. DESIGN: Cross-sectional epidemiological clinical study. SETTING: A total of 869 African (428 boys, 441 girls) and 706 Caucasian (319 boys, 387 gir

  6. African American English: Implications for School Counseling Professionals

    Science.gov (United States)

    Day-Vines, Norma L.; Barto, Heather H.; Booker, Beverly L.; Smith, Kim V.; Barna, Jennifer; Maiden, Brian S.; Zegley, Linda; Felder, Monique T.

    2009-01-01

    African American English (AAE) refers to the systematic, rule-governed linguistic patterns of found among African Americans. This article provides an overview of AAE. More specifically, the article enumerates the historical underpinnings associated with AAE, identifies a representative set of AAE characteristics, reviews relevant research, and…

  7. Food Group Categories of Low-Income African American Women

    Science.gov (United States)

    Lynch, Elizabeth B.; Holmes, Shane

    2011-01-01

    Objective: Describe lay food group categories of low-income African American women and assess the overlap of lay food groups and MyPyramid food groups. Design: A convenience sample of African American mothers from a low-income Chicago neighborhood performed a card-sorting task in which they grouped familiar food items into food groups. Setting:…

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

    Science.gov (United States)

    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

  9. Reading the African context

    Directory of Open Access Journals (Sweden)

    Musonda Bwalya

    2012-12-01

    Full Text Available There is so much alienation, pain and suffering in our today�s world. In this vein, African Christianity, a voice amongst many voices, should seek to be a transformational religion for the whole of life, affecting all facets of human life towards a fuller life of all in Africa. This article sought to highlight and point to some of the major societal challenges in the African context which African Christianity, as a life-affirming religion, should continue to embrace, re-embrace and engage with, if it has to be relevant to the African context. In this vein, the article argued that a correct reading of the African context would lead to a more relevant theory and praxis of African Christianity for the benefit of all African peoples and their global neighbours. The contention of this article was that African Christianity has a significant role to play in the re-shaping of the African society and in the global community of humans, only that this role must be executed inclusively, responsibly and appropriately, together with all those who seek the holistic development of Africa towards one common destiny.

  10. Setting Benchmarks

    Institute of Scientific and Technical Information of China (English)

    Sanusha; Naidu

    2011-01-01

    With the adoption of the Luanda Declaration at the end of the conference,it was fairly evident that African governments could no longer deny the causal links or intersection-between the environment and health care for people across the continent.

  11. Empowering African States

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    China helps bring lasting peace and stability to Africa African think tanks expressed a high opinion of China’s role in helping build African peace and security at the first meeting of the China-Africa Think Tanks Forum. The

  12. African Literature as Celebration.

    Science.gov (United States)

    Achebe, Chinua

    1989-01-01

    Describes the Igbo tradition of "Mbari," a communal creative enterprise that celebrates the world and the life lived in it through art. Contrasts the cooperative, social dimension of pre-colonial African culture with the exclusion and denial of European colonialism, and sees new African literature again celebrating human presence and…

  13. African American Suicide

    Science.gov (United States)

    African American Suicide Fact Sheet Based on 2012 Data (2014) Overview • In 2012, 2,357 African Americans completed suicide in the U.S. Of these, 1,908 (80. ... rate of 9.23 per 100,000). The suicide rate for females was 1.99 per 100, ...

  14. African Peacekeepers in Africa

    DEFF Research Database (Denmark)

    Emmanuel, Nikolas G.

    2015-01-01

    behind African participation in United Nations (UN) peacekeeping operations in Africa. In doing so, this research focuses on US military aid and foreign troop training from 2002 to 2012, and its impact on African deployments into UN peacekeeping missions in Africa. As can be expected, such third...

  15. African agricultural trade

    DEFF Research Database (Denmark)

    Jensen, Hans Grinsted; Sandrey, Ron

    2015-01-01

    This article starts with a profile of African agricultural trade. Using the pre-release version 9.2 of the GTAP database, we then show that the results for tariff elimination on intra-African trade are promising, but these tariff barriers are not as significant as the various trade-related barriers...

  16. Seasonal availability and dietary intake of beta-carotene-rich vegetables and fruit of 2-year-old to 5-year-old children in a rural South African setting growing these crops at household level.

    Science.gov (United States)

    Faber, Mieke; Laubscher, Ria

    2008-02-01

    This study determined the seasonal availability and dietary intake of beta-carotene-rich vegetables and fruit in a rural South African community growing these crops at household level. Monitoring year-round availability of vegetables and fruit in five local shops during 2004 showed that beta-carotene-rich vegetables and fruit were seldom available in the shops. The dietary intake of 2-year-old to 5-year-old children was determined during February, May, August and November in 2004 and 2005 using an unquantified food frequency questionnaire and 5-day repeated 24-h recall (2005 only). Consumption of beta-carotene-rich vegetables and fruit showed seasonal variation. Inadequate dietary vitamin A intake ranged from 6% in November to 21% in February and August. beta-Carotene-rich vegetables and fruit contributed 49-74% of the total vitamin A intake. It is concluded that beta-carotene-rich vegetables and fruit contribute a major part of the dietary vitamin A intake. Consumption of individual beta-carotene-rich vegetables and fruit fluctuated according to the season; nonetheless, an adequate dietary vitamin A intake was maintained throughout the year for the majority of the study population.

  17. Population genetics of African ungulates

    DEFF Research Database (Denmark)

    Lorenzen, Eline

    Molecular genetic techniques were used to gain insights into the evolutionary forces that have shaped the present day diversity of African savannah ungu-lates, which constitute the most species-rich mega faunal assemblage on earth. The studies included in this thesis represent individual species......-specific data sets, which are used to elucidate evolutionary processes of importance to the savannah ungulate community. Patterns of DNA variation were analyzed to assess the genetic signatures of Pleistocene refugia and investigate aspects of speciation, intraspecific structuring, hybridization, and historic...

  18. Economic Situation of African Smallholders and the Countermeasures of the Agricultural Technology Demonstration Centers Set up by China in Africa%非洲小农经济状况与我国援非农业技术示范中心对策

    Institute of Scientific and Technical Information of China (English)

    周泉发; 刘国道

    2011-01-01

    分析影响非洲小农收入的主要因素,非洲粮食作物种植状况,非洲农用土地状况及非洲农业政策状况,指出援非农业技术示范中心的优势与劣势,并提出相应的对策。%The main factors which affect African smallholders' income,the planting situation of grain crops in Africa,the situation of agricultural land and the situation of agricultural policies in Africa are analyzed.The advantages and disadvantages of the Agricultural Technology Demonstration Centers set up by China in Africa are pointed out,with the countermeasures offered.

  19. African American Diaspora

    Directory of Open Access Journals (Sweden)

    Angela Brown

    2013-07-01

    Full Text Available The migration of blacks in North America through slavery became united.  The population of blacks past downs a tradition of artist through art to native born citizens. The art tradition involved telling stories to each generation in black families. The black culture elevated by tradition created hope to determine their personal freedom to escape from poverty of enslavement and to establish a way of life through tradition. A way of personal freedoms was through getting a good education that lead to a better foundation and a better way of life. With regard to all historic migrations (forced and voluntary, the African Union defined the African diaspora as "[consisting] of people of African origin living outside the continent, irrespective of their citizenship and nationality and who are willing to contribute to the development of the continent and the building of the African Union." Its constitutive act declares that it shall "invite and encourage the full participation of the African diaspora as an important part of our continent, in the building of the African Union." Keywords: literature concepts, African American abstracts

  20. African Otter Workshop

    Directory of Open Access Journals (Sweden)

    Jan Reed-Smith

    2016-04-01

    Full Text Available All concerned thought this was an excellent workshop with important progress made towards creating a viable beginning of an African Otter Network. There is a long road ahead but the 2015 African Otter Workshop is a start on developing range country partners, activists and researchers as well as collaborating on issue identification and resolution which will assist in preserving at least some refugia for Africa’s otters. A list of actions was agreed on, including the creation of an African Otter Network website and social media network, apublic Otter Awareness facebook page, encouraging online reporting of otter sightings, conducting otter awareness surveys, and emphasising the need for communication with the public, other members of the network and other professionals. information not shared or documented is information LOST. A Second African Otter Workshop should be held in 2017 elsewhere in Africa to encourage attendance from a wider range of countries.

  1. African Americans and Glaucoma

    Science.gov (United States)

    ... Us Donate In This Section African Americans and Glaucoma email Send this article to a friend by ... and eventually, in developing more effective treatments. Does glaucoma treatment differ? Although treatment varies for all individuals, ...

  2. Use of Morphine Sulphate by South African Paramedics for Prehospital Pain Management

    Directory of Open Access Journals (Sweden)

    Craig Vincent-Lambert

    2015-01-01

    Full Text Available BACKGROUND: Evidence in the literature highlights the fact that acute pain in the prehospital setting remains poorly managed. Morphine remains the most commonly used analgesic agent in the South African prehospital emergency care setting. Although guidelines and protocols relating to the dosage and administration of morphine exist, little data are available describing its use by South African paramedics.

  3. Geoconservation - a southern African and African perspective

    Science.gov (United States)

    Reimold, Wolf Uwe

    1999-10-01

    In contrast to Europe, where geoconservation is actively pursued in most countries and where two international symposia on this subject have been staged in 1991 and 1996, geoconservation in Africa has indeed a very poor record. Considering the wealth of outstanding geological sites and the importance African stratigraphy has within the global geological record, pro-active geoconservation on this continent has not featured very prominently to date. In the interest of science, education and tourism, unique and typical geosites need to be identified, catalogued, and prioritised with the aim being their protection. Most African countries do not have vibrant non-governmental organisations such as a strong geological society, which could drive projects like geoconservation, or strong support from the private sector for environmental work. Here, a case is made for the role that established National Geological Surveys, some of which are already involved with retroactive environmental geological work, could play in the forefront of pro-active geoconservation and site protection.

  4. Willingness to Know the Cause of Death and Hypothetical Acceptability of the Minimally Invasive Autopsy in Six Diverse African and Asian Settings: A Mixed Methods Socio-Behavioural Study

    Science.gov (United States)

    Maixenchs, Maria; Anselmo, Rui; Zielinski-Gutiérrez, Emily; Odhiambo, Frank O.; Akello, Clarah; Zaidi, S. Shujaat H.; Soofi, Sajid Bashir; Bhutta, Zulfiqar A.; Diarra, Kounandji; Djitèye, Mahamane; Dembélé, Roukiatou; Sow, Samba; Minsoko, Pamela Cathérine Angoissa; Agnandji, Selidji Todagbe; Ismail, Mamudo R.; Carrilho, Carla; Ordi, Jaume; Menéndez, Clara; Bassat, Quique

    2016-01-01

    Background The minimally invasive autopsy (MIA) is being investigated as an alternative to complete diagnostic autopsies for cause of death (CoD) investigation. Before potential implementation of the MIA in settings where post-mortem procedures are unusual, a thorough assessment of its feasibility and acceptability is essential. Methods and Findings We conducted a socio-behavioural study at the community level to understand local attitudes and perceptions related to death and the hypothetical feasibility and acceptability of conducting MIAs in six distinct settings in Gabon, Kenya, Mali, Mozambique, and Pakistan. A total of 504 interviews (135 key informants, 175 health providers [including formal health professionals and traditional or informal health providers], and 194 relatives of deceased people) were conducted. The constructs “willingness to know the CoD” and “hypothetical acceptability of MIAs” were quantified and analysed using the framework analysis approach to compare the occurrence of themes related to acceptability across participants. Overall, 75% (379/504) of the participants would be willing to know the CoD of a relative. The overall hypothetical acceptability of MIA on a relative was 73% (366/504). The idea of the MIA was acceptable because of its perceived simplicity and rapidity and particularly for not “mutilating” the body. Further, MIAs were believed to help prevent infectious diseases, address hereditary diseases, clarify the CoD, and avoid witchcraft accusations and conflicts within families. The main concerns regarding the procedure included the potential breach of confidentiality on the CoD, the misperception of organ removal, and the incompatibility with some religious beliefs. Formal health professionals were concerned about possible contradictions between the MIA findings and the clinical pre-mortem diagnoses. Acceptability of the MIA was equally high among Christian and Islamic communities. However, in the two predominantly

  5. Apparent variation in Neanderthal admixture among African populations is consistent with gene flow from Non-African populations.

    Science.gov (United States)

    Wang, Shuoguo; Lachance, Joseph; Tishkoff, Sarah A; Hey, Jody; Xing, Jinchuan

    2013-01-01

    Recent studies have found evidence of introgression from Neanderthals into modern humans outside of sub-Saharan Africa. Given the geographic range of Neanderthals, the findings have been interpreted as evidence of gene exchange between Neanderthals and modern humans descended from the Out-of-Africa (OOA) migration. Here, we examine an alternative interpretation in which the introgression occurred earlier within Africa, between ancestors or relatives of Neanderthals and a subset of African modern humans who were the ancestors of those involved in the OOA migration. Under the alternative model, if the population structure among present-day Africans predates the OOA migration, we might find some African populations show a signal of Neanderthal introgression whereas others do not. To test this alternative model, we compiled a whole-genome data set including 38 sub-Saharan Africans from eight populations and 25 non-African individuals from five populations. We assessed differences in the amount of Neanderthal-like single-nucleotide polymorphism alleles among these populations and observed up to 1.5% difference in the number of Neanderthal-like alleles among African populations. Further analyses suggest that these differences are likely due to recent non-African admixture in these populations. After accounting for recent non-African admixture, our results do not support the alternative model of older (e.g., >100 kya) admixture between modern humans and Neanderthal-like hominids within Africa.

  6. African literature to-day

    Directory of Open Access Journals (Sweden)

    P. Sulzer

    1974-03-01

    Full Text Available Being interested in African literature one seems to swim from the very beginning in a terminological maelstrom. What is African literature? Is it literature written by any African author in any language? That would mean approaching the question from a purely racial basis. It would imply the art of demonstrating that any piece of such literature could infallibly be recognised as African, a thing which, as far as I know has never been done. Or is African literature strictly bound to traditional African culture?

  7. Feasibility and acceptability of artemisinin-based combination therapy for the home management of malaria in four African sites

    Directory of Open Access Journals (Sweden)

    Munguti Kaendi

    2008-01-01

    Full Text Available Abstract Background The Home Management of Malaria (HMM strategy was developed using chloroquine, a now obsolete drug, which has been replaced by artemisinin-based combination therapy (ACT in health facility settings. Incorporation of ACT in HMM would greatly expand access to effective antimalarial therapy by the populations living in underserved areas in malaria endemic countries. The feasibility and acceptability of incorporating ACT in HMM needs to be evaluated. Methods A multi-country study was performed in four district-size sites in Ghana (two sites, Nigeria and Uganda, with populations ranging between 38,000 and 60,000. Community medicine distributors (CMDs were trained in each village to dispense pre-packaged ACT to febrile children aged 6–59 months, after exclusion of danger signs. A community mobilization campaign accompanied the programme. Artesunate-amodiaquine (AA was used in Ghana and artemether-lumefantrine (AL in Nigeria and Uganda. Harmonized qualitative and quantitative data collection methods were used to evaluate CMD performance, caregiver adherence and treatment coverage of febrile children with ACTs obtained from CMDs. Results Some 20,000 fever episodes in young children were treated with ACT by CMDs across the four study sites. Cross-sectional surveys identified 2,190 children with fever in the two preceding weeks, of whom 1,289 (59% were reported to have received ACT from a CMD. Coverage varied from 52% in Nigeria to 75% in Ho District, Ghana. Coverage rates did not appear to vary greatly with the age of the child or with the educational level of the caregiver. A very high proportion of children were reported to have received the first dose on the day of onset or the next day in all four sites (range 86–97%, average 90%. The proportion of children correctly treated in terms of dose and duration was also high (range 74–97%, average 85%. Overall, the proportion of febrile children who received prompt treatment and the

  8. African-Americans and Alzheimer's

    Science.gov (United States)

    ... Share Plus on Google Plus African-Americans and Alzheimer's alz.org | IHaveAlz Introduction 10 Warning Signs Brain ... African-Americans are at a higher risk for Alzheimer's disease. Many Americans dismiss the warning signs of ...

  9. Mental Health and African Americans

    Science.gov (United States)

    ... 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 ...

  10. The evolution of African plant diversity

    OpenAIRE

    Hans Peter Linder

    2014-01-01

    Sub-Saharan Africa includes some 45,000 plant species. The spatial patterns of this diversity have been well explored. We can group the species into a set of biogeographical regions (largely co-incident with regions defined for terrestrial vertebrate groups). Furthermore, we know that the diversity is unevenly distributed, with southern Africa (especially the south-western tip) disproportionally species rich, while the West African interior is disproportionally species poor. However, the ...

  11. African Cultural Astronomy

    CERN Document Server

    Holbrook, Jarita C; Medupe, R. Thebe; Current Archaeoastronomy and Ethnoastronomy research in Africa

    2008-01-01

    Astronomy is the science of studying the sky using telescopes and light collectors such as photographic plates or CCD detectors. However, people have always studied the sky and continue to study the sky without the aid of instruments this is the realm of cultural astronomy. This is the first scholarly collection of articles focused on the cultural astronomy of Africans. It weaves together astronomy, anthropology, and Africa. The volume includes African myths and legends about the sky, alignments to celestial bodies found at archaeological sites and at places of worship, rock art with celestial imagery, and scientific thinking revealed in local astronomy traditions including ethnomathematics and the creation of calendars. Authors include astronomers Kim Malville, Johnson Urama, and Thebe Medupe; archaeologist Felix Chami, and geographer Michael Bonine, and many new authors. As an emerging subfield of cultural astronomy, African cultural astronomy researchers are focused on training students specifically for do...

  12. Design Milieux for Learning Environments in African Contexts

    Science.gov (United States)

    Duveskog, Marcus; Sutinen, Erkki; Cronje, Johannes

    2014-01-01

    During the years 2002 to 2009, five African settings were used as foundation for designing different learning environments. While the content and target group for each learning environment varied, all of their design settings, or milieux, shared one implicit expectation: the milieu should facilitate the production of a change-making learning…

  13. English as an African Language.

    Science.gov (United States)

    Desai, Gaurav

    1993-01-01

    Discusses the role of the English language in postcolonial African literature, focusing on the politics of language, "Africanized" English, and the social languages used in Chinua Achebe's novels and concludes that English today is as much an African language as a British or American one. (Contains 37 references.) (MDM)

  14. African names for American plants

    NARCIS (Netherlands)

    Andel, van T.R.

    2015-01-01

    African slaves brought plant knowledge to the New World, sometimes applying it to related plants they found there and sometimes bringing Old World plants with them. By tracing the linguistic parallels between names for plants in African languages and in communities descended from African slaves, pie

  15. The Struggles over African Languages

    Science.gov (United States)

    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…

  16. African agricultural trade

    DEFF Research Database (Denmark)

    Jensen, Hans Grinsted; Sandrey, Ron

    2015-01-01

    This article starts with a profile of African agricultural trade. Using the pre-release version 9.2 of the GTAP database, we then show that the results for tariff elimination on intra-African trade are promising, but these tariff barriers are not as significant as the various trade-related barriers...... outside of tariffs. Impressive results were forecast by simulating both a 50% reduction in what can be considered traditional non-tariff barriers and a modest 20% reduction in the costs associated with transit time delays at customs, terminals and internal land transportation. Gains from tariff...

  17. Informal learning in SME majors for African American female undergraduates

    Directory of Open Access Journals (Sweden)

    Ezella McPherson

    2014-11-01

    Full Text Available This research investigates how eight undergraduate African American women in science, math, and engineering (SME majors accessed cultural capital and informal science learning opportunities from preschool to college. It uses the multiple case study methodological approach and cultural capital as the framework to better understand their opportunities to engage in free-choice science learning. The article demonstrates that African American women have access to cultural capital and informal science learning inside and outside of home and school environments in P-16 settings. In primary and secondary schools, African American girls acquire cultural capital and access to free-choice science learning in the home environment, museums, science fairs, student organizations and clubs. However, in high school African American female teenagers have fewer informal science learning opportunities like those such as those provided in primary school settings. In college, cultural capital is transmitted through informal science learning that consisted of involvement in student organizations, research projects, seminars, and conferences. These experiences contributed to their engagement and persistence in SME fields in K-16 settings. This research adds to cultural capital and informal science learning research by allowing scholars to better understand how African American women have opportunities to learn about the hidden curriculum of science through informal science settings throughout the educational pipeline.

  18. East African institutions

    DEFF Research Database (Denmark)

    Nordby, Johannes Riber; Jacobsen, Katja

    For the past decade security in East Africa has gained focus internationally. However there is a growing ambition among African states to handle such issues by themselves, sometimes through regional institutions. This has been supported by many Western states but potential risks are often forgotten....

  19. African Oral Tradition Literacy.

    Science.gov (United States)

    Green, Doris

    1985-01-01

    Presents the basic principles of two systems for notating African music and dance: Labanotation (created to record and analyze movements) and Greenotation (created to notate musical instruments of Africa and to parallel Labanotation whereby both music and dance are incorporated into one integrated score). (KH)

  20. African Women Writing Resistance

    Institute of Scientific and Technical Information of China (English)

    Jennifer Browdy de Hernandez; Pauline Dongala; Omotayo; Jolaosho; Anne Serafin

    2011-01-01

    AFRICAN Women Writing Resistance is the first transnational anthology to focus on women's strategies of resistance to the challenges they face in Africa today.The anthology brings together personal narratives,testimony,interviews,short stories,poetry,performance scripts,folktales and lyrics.

  1. African tick bite fever

    DEFF Research Database (Denmark)

    Johansen, Jakob Aaquist; Thybo, Søren

    2011-01-01

    The incident of spotted fever imported to Denmark is unknown. We present a classic case of African Tick Bite Fever (ATBF) to highlight a disease, which frequently infects wildlife enthusiasts and hunters on vacation in South Africa. ATBF has a good prognosis and is easily treated with doxycyclin...

  2. Evaluation of the loop mediated isothermal DNA amplification (LAMP kit for malaria diagnosis in P. vivax endemic settings of Colombia.

    Directory of Open Access Journals (Sweden)

    Andrés F Vallejo

    2015-01-01

    Full Text Available Most commonly used malaria diagnostic tests, including microscopy and antigen-detecting rapid tests, cannot reliably detect low-density infections which are frequent in low transmission settings. Molecular methods such as polymerase chain reaction (PCR are highly sensitive but remain too laborious for field deployment. In this study, the applicability of a malaria diagnosis kit based on loop-mediated isothermal amplification (mLAMP was assessed in malaria endemic areas of Colombia with Plasmodium vivax predominance.First, a passive case detection (PCD study on 278 febrile patients recruited in Tierralta (department of Cordoba was conducted to assess the diagnostic performance of the mLAMP method. Second, an active case detection (ACD study on 980 volunteers was conducted in 10 sentinel sites with different epidemiological profiles. Whole blood samples were processed for microscopic and mLAMP diagnosis. Additionally RT-PCR and nested RT-PCR were used as reference tests. In the PCD study, P. falciparum accounted for 23.9% and P. vivax for 76.1% of the infections and no cases of mixed-infections were identified. Microscopy sensitivity for P. falciparum and P. vivax were 100% and 86.1%, respectively. mLAMP sensitivity for P. falciparum and P. vivax was 100% and 91.4%, respectively. In the ACD study, mLAMP detected 65 times more cases than microscopy. A high proportion (98.0% of the infections detected by mLAMP was from volunteers without symptoms.mLAMP sensitivity and specificity were comparable to RT-PCR. LAMP was significantly superior to microscopy and in P. vivax low-endemicity settings and under minimum infrastructure conditions, it displayed sensitivity and specificity similar to that of single-well RT-PCR for detection of both P. falciparum and P. vivax infections. Here, the dramatically increased detection of asymptomatic malaria infections by mLAMP demonstrates the usefulness of this new tool for diagnosis, surveillance, and screening in

  3. Female genital mutilation in African and African American women's literature

    Directory of Open Access Journals (Sweden)

    Darja Marinšek

    2007-12-01

    Full Text Available The article builds on the existing dispute between African and African American women writers on the competence of writing about female genital mutilation (FGM, and tries to determine the existence and nature of the differences between the writings of these two groups. The author uses comparative analysis of two popular African and African American novels, comparing their ways of describing FGM, its causes and consequences, the level ob objectivity and the style of the narrations.This is followed by a discussion on the reasons for such differences, incorporating a larger circle of both African and African American women authors, at the same time analysing the deviance within the two groups. While the differences between African American writers are not that great, as they mostly fail to present the issue from different points of view, which is often the result of their lack of direct knowledge of the topic, African authors' writing is in itself discovered to be ambivalent and not at all invariable. The reasons for such ambivalence are then discussed in greater context, focusing on the effect of the authors' personal contact with circumcision as well as their knowledge and acceptance of Western values. The author concludes by establishing the African ambivalent attitude towards FGM, which includes different aspects of the issue, as the most significant difference between their and African American writers' description of this practice.

  4. The evolution of African plant diversity

    Directory of Open Access Journals (Sweden)

    Hans Peter Linder

    2014-07-01

    Full Text Available Sub-Saharan Africa includes some 45,000 plant species. The spatial patterns of this diversity have been well explored. We can group the species into a set of biogeographical regions (largely co-incident with regions defined for terrestrial vertebrate groups. Furthermore, we know that the diversity is unevenly distributed, with southern Africa (especially the south-western tip disproportionally species rich, while the West African interior is disproportionally species poor. However, the origins of this diversity have only been explored for two anomalous African Floras (the Tropic-alpine Flora and the Cape Flora, whereas the origins of the diversity of the other floras are still unknown. Here I argue that six floras, with distinct geographical centres, different extra-African affinities, ages of radiation and radiation rates, can be delimited: the Austro-temperate, Tropic-alpine, Lowland forest, Tropic-montane, Savanna and Arid Floras. The oldest flora may be the Lowland forest Flora, and the most recent is the Tropic-alpine, which probably evolved during the Plio-Pleistocene on the summits of the East Africa volcanoes. My results suggest that the most rapidly radiating flora is the Austro-temperate Flora, while the other floras are all diversifying at more or less the same rate, this is also consistent with the current massive species richness in this flora (about half of the African species richness. The Austro-temperate Flora appears to be related to the floras of the other southern continents, the Tropic-alpine Flora to that of the Northern Hemisphere, and the four tropical floras to the tropical regions of the other continents, consistent with the theory of phylogenetic niche conservatism. Current African diversity may be the result of the sequential adding of new floras to the continent. Possibly the species poverty especially of the Lowland forest Flora may be the result of the spread of C4 grasslands and associated regular fires.

  5. The Malaria Vaccine Candidate GMZ2 Elicits Functional Antibodies in Individuals From Malaria Endemic and Non-Endemic Areas

    DEFF Research Database (Denmark)

    Jepsen, Micha Phill Grønholm; Jogdand, Prajakta S; Singh, Susheel K

    2013-01-01

    against Plasmodium falciparum. Results. We showed that the maximum level of immunoglobulin G (IgG) antibodies obtained by GMZ2 vaccination is independent of ethnicity, time under malaria-exposure, and vaccine dose and that GMZ2 elicits high levels of functionally active IgG antibodies. Both, malaria......-naive adults and malaria-exposed preschool children elicit vaccine-specific antibodies with broad inhibitory activity against geographically diverse P. falciparum isolates. Peptide-mapping studies of IgG subclass responses identified IgG3 against a peptide derived from MSP3 as the strongest predictor...

  6. Sequence Analysis and Genotypes of Glutamate Rich Protein of Plasmodium falciparum Isolates from Different Malaria Endemic Areas in China

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    To sequence the gene encoding glutamate rich protein (GLURP) and identify the genotypes of geographically different Plasmodium falciparum (P. f ) isolates from China. Methods The gene of R2 repeat region of GLURP was amplified by nested polymerase chain reaction and cloned into T-vector. The nucleotide sequence of GLURP gene was determined by automatic sequencer (Dideoxy termination method) and analyzed by DNA Star software. Results At least 7different GLURPgenotypesranging from 600 bp to 1 500 bp were found in Yunnan and Hainan provinces. R2 region of GLURP gene consisted of several repeat units. Each repeat unit was composed of 19-20 residues which were shown to be highly conserved. GLURP gene was also size polymorphic due to differences in the number of repeat units, whereas the repeat sequence was conserved. Sequence analysis showed that DNA sequences and deduced amino acid sequences were highly homologous among the geographically dispersed isolates or various isolates from the same geographical region. No obvious differences were found in the GLURP gene sequences among geographically different isolates. Conclusion GLURP gene is highly structure conserved and size polymorphic, and so is useful in searching for malaria vaccine candidate antigen and developing a genotyping method for malaria research.

  7. Home-based malaria management in children by women: Evidence from a malaria endemic community in sub-Saharan Africa

    OpenAIRE

    Eugene-Ezebilo, Doreen N.; Ezebilo, Eugene Ejike

    2015-01-01

    Objective: To examine the medicines and dosage that mothers who engage in home-based malaria management administer to children aged ≤ 5 years having signs and symptoms associated with malaria and to discuss the possibilities of designing an effective home-based malaria management strategy. Methods: The data were obtained from face-to-face semi-structured interviews conducted with mothers in the Ugbowo Community of Benin City, Nigeria who were selected using multi-stage systematic random s...

  8. Algorithm for the diagnosis of anaemia without laboratory facilities among small children in a malaria endemic area of rural Tanzania

    DEFF Research Database (Denmark)

    Mogensen, Christian B; Soerensen, Jeff; Bjorkman, Anders

    2006-01-01

    Anaemia among small children in tropical Africa is common and often caused by infection with Plasmodium falciparum. The diagnosis of anaemia is difficult without a laboratory estimation of haemoglobin. The aim of this study was to examine if clinical findings related to malaria and anaemia would...... help to detect moderate and/or severe anaemia in children in rural Tanzania....

  9. Levels of Organochlorine Pesticides in Blood Plasma from Residents of Malaria-Endemic Communities in Chiapas, Mexico

    NARCIS (Netherlands)

    Ruiz-Suarez, L.E.; Castro-Chan, R.A.; Rivero-Perez, N.E.; Trejo-Acevedo, A.; Guillen-Navarro, G.K.; Geissen, V.; Bello-Mendoza, R.

    2014-01-01

    Organochlorine (OC) pesticides have been extensively used for pest control in agriculture and against malaria vectors in the region of Soconusco, Chiapas, in southern Mexico. Our study aimed to identify whether the inhabitants of four Soconusco communities at different locations (i.e., altitudes) an

  10. Efficacy of iron fortified cowpea flour in improving iron status of schoolchildren in malaria endemic rural Ghana

    NARCIS (Netherlands)

    Abizari, A.R.

    2013-01-01

    Children in sub-Saharan Africa are more likely to have survived the critical first 1000 days of life carrying along unresolved micronutrient deficiencies into the school-age. Iron-deficiency is the most prevalent micronutrient problem affecting school-age children in sub-Saharan Africa and yet the m

  11. Population genetic structure of Anopheles arabiensis and Anopheles gambiae in a malaria endemic region of southern Tanzania

    NARCIS (Netherlands)

    K.R. Ng'habi; B.G.J. Knols; Y. Lee; H.M. Ferguson; G.C. Lanzaro

    2011-01-01

    Background: Genetic diversity is a key factor that enables adaptation and persistence of natural populations towards environmental conditions. It is influenced by the interaction of a natural population's dynamics and the environment it inhabits. Anopheles gambiae s.s. and Anopheles arabiensis are t

  12. Haplotypes associated with resistance to sulfadoxine-pyrimethamine in Plasmodium falciparum in two malaria endemic locations in Colombia.

    Science.gov (United States)

    Hernández, Diana Carolina; Guerra, Angela Patricia; Cucunubá, Zulma Milena; Nicholls, Ruben Santiago; Barrera, Sandra Milena

    2013-08-01

    Colombia has four main malaria transmission zones. In vivo efficacy studies carried out in these areas showed big differences in the response of Plasmodium falciparum to treatment with sulphadoxine-pyrimethamine. In addition, there is still insufficient information about the genetics of P. falciparum populations. The objective of this study was to determine the haplotypes in dhfr and dhps genes of P. falciparum circulating in two distinct endemic zones. Samples from patients with non-complicated P. falciparum malaria were collected: 135 from Tumaco and 206 from Tierralta. Alleles 108 and 51 of the dhfr gene, and 437 and 540 of the dhps gene were analyzed by PCR/enzymatic restriction, while alleles 59 and 164 (dhfr), and 581(dhps) by PCR/dot blot/hybridization. Five different haplotypes were found, of which the triple mutant 51I/C59/108N/I164/437G/K540/A581 was the most frequent (54.6%). In Tumaco, the parasites with wild haplotype predominated, while mutant parasites predominated in Tierralta. Another interesting finding is the presence of the C59R mutation in the dhfr gene in two samples, a mutation rarely found in South America. These data provide information about parasite population genetics and highlight the importance of starting a long term molecular surveillance program.

  13. Maternal anemia in pregnancy: assessing the effect of routine preventive measures in a malaria-endemic area.

    Science.gov (United States)

    Ouédraogo, Smaïla; Koura, Ghislain K; Bodeau-Livinec, Florence; Accrombessi, Manfred M K; Massougbodji, Achille; Cot, Michel

    2013-02-01

    We investigated the effectiveness of routine preventive measures for anemia in Beninese pregnant women during pregnancy. Anemia (hemoglobin < 110 g/L) was common: 68.3% at first antenatal visit (ANV1), 64.7% at second antenatal visit (ANV2), and 40.6% at delivery. Parasitic infections and nutritional deficiencies were the most preventable causes. After intermittent preventive treatment (IPTp) and antihelminthic treatments, malaria prevalence decreased from 15.1% (ANV1) to 4.0% (ANV2) and increased again to 9.6% at delivery. Helminth infections dropped from 11.1% (ANV1) to 7.2% (ANV2) and 2.4% at delivery. Malaria was associated with lower mean hemoglobin on ANV1 and delivery, and iron deficiency was associated with lower mean hemoglobin on ANV1 and ANV2. IPTp and antihelminthic treatments were efficacious to clear parasitic infections and improve hematologic status, whereas the effectiveness of daily iron and folic acid supplements to correct iron and folate deficiencies and decrease anemia was less marked, possibly because of lack of compliance.

  14. Susceptibility of Culicidae Mosquitoes to Some Insecticides Recommended by WHO in a Malaria Endemic Area of Southeastern Iran

    Directory of Open Access Journals (Sweden)

    Mousa Fathian

    2015-10-01

    Full Text Available Background: According to the national strategy plan on monitoring of insecticides resistance, this study was carried out to determine the base line susceptibility of the Culicidae mosquitoes to the WHO-recommended insecticides in an endemic focus of malaria in southeastern Iran.Methods: Larval collection was carried out by dipping method and adult collection occurred by suction tube from January to December 2010. The susceptibility test was assessed to DDT 4 %, malathion 5 %, propoxur 0.1 %, deltamethrin 0.05 %, lambda-cyhalothrin 0.05 %, and cyfluthrin 0.15 % at different interval times (discriminative dose followed by 24 h recovery period . The LT50 and LT90 values were calculated for plotting the regression line using Microsoft office Excel software ver. 2007.Results: Anopheles stephensi was quite resistant to DDT and showed susceptible or tolerant to other insecticides. The LT50 and LT90 values to DDT in this species were 29.07, and 98.26 minutes, respectively. Anopheles culicifacies and Anopheles dthali were found susceptible or tolerant to insecticides. Culex pipiens was found resistance to DDT, propoxur, lambda-cyhalothrin and cyfluthrin whereas observed susceptible to malathion and tolerant to deltamethrin. Ochlerotatus caspius sl. was resistant to DDT, whereas found susceptible to other insecticides. Culisita longiareolatawas susceptible to deltamethrin, whereas tolerant to other insecticides. The LT50 and LT90 values of Cs. longiareolata to DDT were 17.82, and 51.26 minutes.Conclusion: We suggested the same study in different parts of the country for monitoring and evaluation of control measures.

  15. Simultaneous presence of DDT and pyrethroid residues in human breast milk from a malaria endemic area in South Africa

    Energy Technology Data Exchange (ETDEWEB)

    Bouwman, H. [School for Environmental Sciences and Development, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom 2520 (South Africa)]. E-mail: drkhb@puk.ac.za; Sereda, B. [Agricultural Research Council, Plant Protection Research Institute, Private Bag X134 Queenswood, Pretoria 0121 (South Africa); Meinhardt, H.M. [South African Bureau of Standards, Testing and Conformity Services (Pty) Ltd, Private Bag X191, Pretoria 0001 (South Africa)

    2006-12-15

    DDT and pyrethroids were determined in 152 breast-milk samples from three towns in KwaZulu-Natal, South Africa, one of which had no need for DDT for malaria control. All compounds were found present in breast milk. Primiparae from one town had the highest mean {sigma}DDT whole milk levels (238.23 {mu}g/l), and multiparae from the same town had the highest means for permethrin (14.51 {mu}g/l), cyfluthrin (41.74 {mu}g/l), cypermethrin (4.24 {mu}g/l), deltamethrin (8.39 {mu}g/l), and {sigma}pyrethroid (31.5 {mu}g/l), most likely derived from agriculture. The ADI for DDT was only exceeded by infants from one town, but the ADI for pyrethroids was not exceeded. Since the ADI for DDT was recently reduced from 20 to 10 {mu}g/kg/bw, we suggest that this aspect be treated with concern. We therefore raise a concern based on toxicant interactions, due to the presence of four different pyrethroids and DDT. Breastfeeding however, remains safe under prevailing conditions. - The simultaneous presence of DDT and pyrethroid residues in breast milk raises the question of infant exposure and safety.

  16. The role of private drug vendors as malaria treatment providers in selected malaria endemic areas of Sri Lanka

    DEFF Research Database (Denmark)

    Rajakaruna, R S; Weerasinghe, M; Alifrangis, M

    2006-01-01

    and improve adherence to the government's malaria drug policy. Results of a study on the knowledge and practices of the private drug vendors conducted in seven districts in Sri Lanka, mostly in malarious areas are presented. METHODS: Data on awareness of government's malaria drug policy, practice of issuing...... antimalarials, knowledge about malaria and antimalarial drugs were collected from the drug vendors using pre-tested questionnaire in vernacular language. Data were statistically analysed using Stata 8.2. Chi-square test was carried out for individual explanatory variables and a logistic regression model...

  17. Levels of Organochlorine Pesticides in Blood Plasma from Residents of Malaria-Endemic Communities in Chiapas, Mexico

    Directory of Open Access Journals (Sweden)

    Luz E. Ruiz-Suárez

    2014-10-01

    Full Text Available Organochlorine (OC pesticides have been extensively used for pest control in agriculture and against malaria vectors in the region of Soconusco, Chiapas, in southern Mexico. Our study aimed to identify whether the inhabitants of four Soconusco communities at different locations (i.e., altitudes and with different history of use of OC pesticides, have been similarly exposed to residues of these pesticides. In particular, we analyzed the potential relationship between levels of OC pesticides in plasma and the age, gender, and residence of the study population (n = 60. We detected seven pesticides in total (γ-HCH, β-HCH, heptachlor, p,pʹ-DDE, p,p'-DDT, β-endosulfan, endrin aldehyde. Of these, p,pʹ-DDE and β-endosulfan were the most frequently found (in 98% and 38% of the samples, respectively. The low-altitude (<20 m above sea level; masl and mid-altitude (520 masl locations had the highest levels of p,pʹ-DDE, with geometric means of 50.6 µg/L and 44.46 µg/L, respectively. The oldest subjects (>60 years had the highest p,pʹ-DDE level (56.94 ± 57.81 µg/L of all age groups, while men had higher p,pʹ-DDE (34.00 ± 46.76 µg/L than women. Our results demonstrate that residents of the Soconusco region are exposed to p,pʹ-DDE because of high exposure to DDT in the past and current environmental exposure to this DDT-breakdown product.

  18. Risk and Protective Factors for Depressive Symptoms in Urban African American Adolescents

    Science.gov (United States)

    Tandon, Darius S.; Solomon, Barry S.

    2009-01-01

    There is limited understanding of risk and protective factors associated with depression among African American adolescents living in impoverished, urban settings. A cross-sectional study was conducted to identify a range of risk and protective factors associated with depressive symptoms among low-income urban African American adolescents. The…

  19. Faith-Based Mental Health Interventions with African Americans: A Review

    Science.gov (United States)

    Hays, Krystal; Aranda, Maria P.

    2016-01-01

    Faith-based interventions have emerged culturally sensitive way to address mental health issues among African Americans. This systematic review explores the scope and efficacy of faith-based mental health intervention outcomes among African Americans. Extracted data included the study population, setting, study design, intervention, adaptations,…

  20. Something Every Teacher and Counselor Needs to Know about African-American Children

    Science.gov (United States)

    Davis, Patrick E.

    2007-01-01

    African-American student academic performance, as a group, in most educational settings causes alarm to educators, policymakers, and laypeople, alike. Some suggest that the problems associated with the academic under-achievement of many African-American students are perhaps the most pressing issues facing both educators and researchers. Much…

  1. Academic Bullying: A Barrier to Tenure and Promotion for African-American Faculty

    Science.gov (United States)

    Frazier, Kimberly N.

    2011-01-01

    The author discusses the problem of retention of African American faculty due to tenure and promotion issues. The author outlines obstacles that African American face in the workplace while seeking tenure and promotion in academia. A case example is presented that illuminates how these stressors manifest in the academic setting and recommendations…

  2. African American Children and Mental Health. Child Psychology and Mental Health

    Science.gov (United States)

    Hill, Nancy E., Ed.; Mann, Tammy L., Ed.; Fitzgerald, Hiram E., Ed.

    2011-01-01

    This groundbreaking two-volume set examines the psychological, social, physical, and environmental factors that undermine or support healthy development in African American children while considering economic, historical, and public policies. African American children are at the highest risk for becoming school dropouts, for academic disengagement…

  3. [Conceptual parameters of the facial arc and articulators adapted for black Africans].

    Science.gov (United States)

    N'Dindin, A C; Djeredou, K B; N'Dindin-Guinan, B; Assi, K D

    2005-12-01

    Articulators and facial arc always used in dentistry are not adapted to African black people. Their use provokes many errors in the setting of models on articulators. In this work, authors propose facial arc and articulator parameters conceptions that are suited to black Africans.

  4. Low Income African Americans' Parental Involvement in Intermediate Schools: Perceptions, Practices, and Influences

    Science.gov (United States)

    Petty, Benjamin

    2012-01-01

    Purpose: The purpose of this study was to examine how the parental involvement perceptions, practices, and influences of low-income African Americans in an intermediate school setting are affected by low-incomes. Although involving African American parents in the educational process is a difficult task for educators (Alldred & Edwards, 2000;…

  5. Steps to African Development

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The development of Africa is vital to the world’s sustainable development.However,African countries still face key challenges in achieving the meaningful expansion of their economies.At the High-Level Symposium on China-Africa Investment Cooperation in Xiamen,southeast China’s Fujian Province,held from September 8 to 10,Chen Deming,Minister of Commerce of China,elaborates on these challenges and sees

  6. Human African trypanosomiasis.

    Science.gov (United States)

    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.

  7. Diversity among African pygmies.

    Directory of Open Access Journals (Sweden)

    Fernando V Ramírez Rozzi

    Full Text Available 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.

  8. Institution Building for African Regionalism

    OpenAIRE

    Khadiagala, Gilbert M.

    2011-01-01

    Since the 1960s, African states have embraced regional integration as a vital mechanism for political cooperation and for pooling resources to overcome problems of small and fragmented economies. In building meaningful institutions for regionalism, however, Africans have faced the challenges of reconciling the diversities of culture, geography, and politics. As a result, African regional institutions are characterized by multiple and competing mandates and weak institutionalization. This stud...

  9. African Diaspora Associations in Denmark

    DEFF Research Database (Denmark)

    Vammen, Ida Marie; Trans, Lars Ove

    2011-01-01

    Since the early 1990s, an increasing number of African migrants have come to Denmark, where they have formed a large number of migrant associations. This chapter presents selected findings from a comprehensive survey of African diaspora associations in Denmark and focuses specifically on their tr......Since the early 1990s, an increasing number of African migrants have come to Denmark, where they have formed a large number of migrant associations. This chapter presents selected findings from a comprehensive survey of African diaspora associations in Denmark and focuses specifically...

  10. Constructive Sets in Computable Sets

    Institute of Scientific and Technical Information of China (English)

    傅育熙

    1997-01-01

    The original interpretation of the constructive set theory CZF in Martin-Loef's type theory uses the‘extensional identity types’.It is generally believed that these‘types’do not belong to type theory.In this paper it will be shown that the interpretation goes through without identity types.This paper will also show that the interpretation can be given in an intensional type theory.This reflects the computational nature of the interpretation.This computational aspect is reinforced by an ω-Set moel of CZF.

  11. A plea to better feed African soils

    Science.gov (United States)

    Stroosnijder, Leo

    2014-05-01

    Most African cropping system are rainfed. Rain is distributed at the soil surface over infiltration and runoff. The infiltrated water is stored in the rootable soil layer and the excess drains below that layer into the groundwater. The stored water is partly lost as evaporation to the atmosphere and partly used as transpiration for plant growth. In African cropping system the green water use efficiency (GWUE: fraction transpiration over rainfall) is as low as 15%. This low value is due to the often poor soil quality (physical, chemical and biological) of African soils. The poor physical state causes a weak soil structure resulting in crust formation with low infiltration and high runoff as consequences. The water holding capacity of the rootable soil layer is also poor, causing quite some water lost into deeper layers. African soils are poor due to long time soil mining. Soil life depends on soil organic matter (SOM) which is decreasing everywhere at an average rate of 2% per year. It is common sense that an improved soil quality is essential for improved food security. The key that triggers a sustainable improvement in soil quality is a system's approach that focus on the management of organic resources. Soil is a living organism, and it feeds on SOM. This feed is continuously consumed but a living soil makes new SOM out of fresh organic matter. In order to keep our soils alive we need cropping systems that feed our soils with fresh organic matter in the form of crop residues in the right mix of quality and quantity. The tendency to breed crops with a high harvest index (hence low straw) and the many other uses of crop residues (competing claims) with it recent use for bio-ethanol fabrication is disastrous for our living soils. If we continue to allow SOM to decrease, soil crusting and hard setting will increase with less end less water available for the production of green biomass. Lower available water will trigger a negative spiral with lower food security and

  12. African American teen mothers' perceptions of parenting.

    Science.gov (United States)

    Wayland, J; Rawlins, R

    1997-02-01

    The purpose of this study was to describe the childbearing African American teens' perceptions of parenting based on their own experiences. Focus group discussions were held with 17 teens in their school setting for 50 minutes each week. Group discussions were audiotaped, tapes were transcribed, and then analyzed for common themes. The unmarried teens ranged in age from 15 to 18 years. Findings indicated that the teens depended on grandmothers to provide child care and for information about parenting. The teens identified parenting problems including crying, discipline, and conflicts dealing with grandmothers and the child's father. Teens wanted more information about breastfeeding and minor childhood diseases. The researchers identified that teens lacked information about their children's growth and development and safety issues. Findings have implications for nurses who care for childbearing teens and their children; and those involved in planning and implementing parent education programs for African American teen mothers and their families. Further research is indicated with larger samples of African American teens; and to explore the context of family relationships in which teen mothers and grandmothers share parenting for the teens' children.

  13. Nutritional consequences of the African diaspora.

    Science.gov (United States)

    Luke, A; Cooper, R S; Prewitt, T E; Adeyemo, A A; Forrester, T E

    2001-01-01

    Along with their foods and dietary customs, Africans were carried into diaspora throughout the Americas as a result of the European slave trade. Their descendants represent populations at varying stages of the nutrition transition. West Africans are in the early stage, where undernutrition and nutrient deficiencies are prevalent. Many Caribbean populations represent the middle stages, with undernutrition and obesity coexisting. African-Americans and black populations in the United Kingdom suffer from the consequences of caloric excess and diets high in fat and animal products. Obesity, non-insulin-dependent diabetes mellitus, hypertension, coronary heart disease, and certain cancers all follow an east-to-west gradient of increasing prevalence. Public health efforts must focus not only on eradicating undernutrition in West Africa and the Caribbean but also on preventing obesity, hypercholesterolemia, and their consequences. Fortunately, a coherent and well-supported set of recommendations exists to promote better nutrition. Implementation of it founders primarily as a result of the influence of commercial and political interests.

  14. Intracranial aneurysms in an African country

    Directory of Open Access Journals (Sweden)

    Ogeng'o Julius

    2009-12-01

    Full Text Available Background : Characteristics of intracranial aneurysms display ethnic variations. Data on this disease from the African continent is scarce and often conflicting. Aim : To describe site, age and gender distribution of intracranial aneurysms among Kenyans. Study Design and Setting : Retrospective study at Kenyatta National Hospital, Kenya. Materials and Methods: All records of black African patients with a diagnosis of intracranial aneurysms seen at Kenyatta National Hospital, the largest referral hospital in the Eastern and Central African region, over the period from January 1998 to December 2007 were examined for site, age and gender distribution. The data gathered were coded, analyzed with SPSS 11.50. Results : Fifty-six cases of intracranial aneurysms were analyzed. The posterior communicating artery was the most affected (35.7%, followed by the anterior communicating artery (26.8%, while the posterior cerebral artery was the least affected (2%. Multiple aneurysms were present in 2%. The mean age at presentation was 50.9 years (range 21-80 years and the gender distribution was equal. Conclusions : Intracranial aneurysms among Kenyans occur most commonly on the posterior communicating artery, in young individuals, and without gender bias. The distribution differs from that described in the literature and this requires search for risk factors.

  15. The African Diaspora, Civil Society and African Integration

    DEFF Research Database (Denmark)

    Opoku-Mensah, Paul Yaw

    This paper, a work-in-progress, makes a contribution to the discussions on the appropriate modalities for incorporating the African diaspora in the African integration project.  It argues that the most appropriate entry points for incorporating the African diaspora into the integration project...... might not, necessarily, be in the formal political structures, although this is important. To the contrary, the most effective and sustainable might be within civil society---that is the links between the peoples and organizations of Africa and the diaspora. Using the case of the African academy......-- as an institution of civil society--- the paper outlines a conceptual framework for incorporating the diaspora into the African integration project....

  16. Engaging African and Caribbean Immigrants in HIV Testing and Care in a Large US City: Lessons Learned from the African Diaspora Health Initiative.

    Science.gov (United States)

    Kwakwa, Helena A; Wahome, Rahab; Goines, Djalika S; Jabateh, Voffee; Green, Arraina; Bessias, Sophia; Flanigan, Timothy P

    2016-05-19

    The lifting in 2010 of the HIV entry ban eliminated an access point for HIV testing of the foreign-born. The African Diaspora Health Initiative (ADHI) was developed to examine alternative pathways to testing for African and Caribbean persons. The ADHI consists of Clinics Without Walls (CWW) held in community settings. HIV testing is offered to participants along with hypertension and diabetes screening. A survey is administered to participants. Descriptive data were analyzed using SAS 9.2. Between 2011 and 2015, 4152 African and Caribbean individuals participated in 352 CWW. Participants were mostly (67.7 %) African. HIV rates were lowest in Caribbean women (0.4 %) and highest in Caribbean men (8.4 %). Efforts to engage African and Caribbean communities in HIV testing are important given the elimination of the HIV entry ban and continued immigration to the US from areas of higher prevalence. The ADHI offers a successful model of engagement.

  17. Developmental Origins of Perfectionism among African American Youth

    Science.gov (United States)

    Herman, Keith C.; Trotter, Reid; Reinke, Wendy M.; Ialongo, Nicholas

    2011-01-01

    The present study used a person-centered latent variable approach to classify types of perfectionism among 6th-grade African American children living in an urban setting. In particular, the authors were interested in determining whether an adaptive subtype could be found and validated against external criteria. The authors also attempted to…

  18. Developmental Trajectories of Maladaptive Perfectionism among African American Adolescents

    Science.gov (United States)

    Herman, Keith C.; Wang, Kenneth; Trotter, Reid; Reinke, Wendy M.; Ialongo, Nicholas

    2013-01-01

    This study examined the developmental trajectories of maladaptive perfectionism over a 7-year period among African American youth living in an urban setting (N = 547). In particular, the study attempted to determine whether two maladaptive aspects of perfectionism (socially prescribed and self-critical) changed over time and could be distinguished…

  19. Wellness and Coping Activities of African American Counselors.

    Science.gov (United States)

    Evans, Kathy M.

    1997-01-01

    Examined physical, emotional, cognitive, and spiritual wellness activities of African American mental health counselors and behaviors they used to cope with racism. Counselors used a wide variety of wellness strategies, although counselors in school settings were less likely to engage in occupational wellness activities. Confrontation was the most…

  20. A Call to African Unity

    DEFF Research Database (Denmark)

    Muchie, Mammo

    This month's paper, written by Professor Mammo Muchie, examines the necessity for a pan-African monetary union.  Professor Muchie argues for the "the creation of a unified African strategy and unified approach to dealing with the outside donor world by neutralising the poison of money as honey...

  1. African Conservation Tillage Network Website

    OpenAIRE

    African Conservation Tillage Network (ACT)

    2009-01-01

    Metadata only record Maintained by the African Conservation Tillage Network (ACT), this website provides information on Conservation Agriculture in an African context and gathered by stakeholders (NGOs) native to the continent. Resources on projects, practices, reports, and training courses are provided.

  2. Central African Republic.

    Science.gov (United States)

    1986-02-01

    Focus in this discussion of the Central African Republic is on: geography; the people; history and political conditions; government; the economy; foreign relations; and relations with the US. The population of the Central African Republic totaled 2.7 million in 1985 with an annual growth rate of 2.8%. The infant mortality rate is 134/1000 with life expectancy at 49 years. The Central African Republic is at almost the precise center of Africa, about 640 km from the nearest ocean. More than 70% of the population live in rural areas. There are more than 80 ethnic groups, each with its own language. The precolonial history of the area was marked by successive waves of migration, of which little is known. These migrations are responsible for the complex ethnic and linguistic patterns today. United with Chad in 1906, it formed the Oubangui-Chari-Chad colony. In 1910, it became 1 of the 4 territories of the Federation of French Equatorial Africa, along with Chad, Congo, and Gabon. After World War II, the French Constitution of 1946 inaugurated the first of a series of reforms that led eventually to complete independence for all French territories in western and equatorial Africa. The nation became an autonomous republic within the newly established French Community on December 1, 1958, and acceded to complete independence as the Central Africa Republic on August 13, 1960. The government is made up of the executive and the judicial branches. The constitution and legislature remain suspended. All executive and legislative powers, as well as judicial oversight, are vested in the chief of state. The Central African Republic is 1 of the world's least developed countries, with an annual per capita income of $310. 85% of the population is engaged in subsistence farming. Diamonds account for nearly 1/3 of export earnings; the industrial sector is limited. The US terminated bilateral assistance programs in 1979, due to the human rights violations of the Bokassa regime, but modest

  3. Booster for African Economy

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    China’s investment is fueling African growth SINCE 2000,driven by the Forum on China-Africa Cooperation,China’s foreign direct investment(FDI) in Africa has been growing rapidly.In the face of the global financial crisis,which led to global FDI flows falling,China’s investment in Africa has been on a steady, upbeat rise without any interruption.In 2009,China’s direct investment in Africa reached $1.44 billion,of which nonfinancial direct investment soared by 55.4 percent from the previous year.Africa

  4. Understanding the Rise of African Business

    DEFF Research Database (Denmark)

    Jorem, Kaja Tvedten; Jeppesen, Søren; Hansen, Michael W.

    In light of recent enthusiasm over the African private sector, this paper reviews the existing empirical literature on successful African enterprises and proposes an analytical framework for understanding African firm success. Overall, it is argued that we need to develop an understanding...... of African firm strategy and performance that takes into account the specificities of the African business environment and African firm capabilities. The paper starts by juxtaposing the widespread pessimistic view of African business with more recent, optimistic studies on African firms’ performance....... The latter suggests that profound improvements in African business performance are indeed under way: with the private sector playing a more important role as an engine of growth, with the rise of a capable African entrepreneurial class, and with the emergence of dynamic and competitive African enterprises...

  5. EPEC-O for African Americans - Module 13 AA - Advance Care Planning

    Science.gov (United States)

    The thirteenth module of the EPEC-O (Education in Palliative and End-of-Life Care for Oncology) Self-Study: Cultural Considerations When Caring for African Americans explores the attitudes and practices of African Americans related to completion of advance directives, and recommends effective strategies to improve decision-making in the setting of serious, life-threatening illness, in ways that augment patient autonomy and support patient-centered goal-setting and decision-making among African American patients and their families.

  6. The history of African trypanosomiasis

    Directory of Open Access Journals (Sweden)

    Steverding Dietmar

    2008-02-01

    Full Text Available Abstract The prehistory of African trypanosomiasis indicates that the disease may have been an important selective factor in the evolution of hominids. Ancient history and medieval history reveal that African trypanosomiasis affected the lives of people living in sub-Saharan African at all times. Modern history of African trypanosomiasis revolves around the identification of the causative agents and the mode of transmission of the infection, and the development of drugs for treatment and methods for control of the disease. From the recent history of sleeping sickness we can learn that the disease can be controlled but probably not be eradicated. Current history of human African trypanosomiasis has shown that the production of anti-sleeping sickness drugs is not always guaranteed, and therefore, new, better and cheaper drugs are urgently required.

  7. East African ROAD

    Science.gov (United States)

    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).

  8. Bioenergy and African transformation.

    Science.gov (United States)

    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.

  9. Tribe and Village in African Organizations and Business

    DEFF Research Database (Denmark)

    Kragh, Simon Ulrik

    The paper argues that African organization sand business relations reflect pre-industrial social norms found by anthropologists in kinship based, rural communities. African society is a hybrid mixture of an emerging industrial economy and a set of norms and behaviours which have been carried over...... from tribal and peasant communities. In modern, urban organizations the presence of pre-industrial norms is seen in the continued importance of in-group/out-group differention, gift exchange and kinship obligations. The paper suggests an explanation of the continued permanence of pre...

  10. 2002 Sino-African SHP Training Workshop

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The 2002 Sino-African SHP Training Workshop was held from 10 May to 18 June 2002 at Hangzhou Regional Center for Small Hydro Power(HRC). Attended altogether 9 participants from 5 African countries, i.e. Burundi, Nigeria, South African, Tanzania and Tunisia. This is the second training workshop on SHP that HRC conducted for African countries.

  11. Surfaces on African sculpture

    Directory of Open Access Journals (Sweden)

    John Mack

    2011-12-01

    Full Text Available Review of: Leonard Kahan, Donna Page, and Pascal James Imperato (eds in collaboration with Charles Bordogna and Bolaji Campbell with an introduction by Patrick McNaughton, Surfaces: Color, Substances, and Ritual Applications on African Sculpture, Indiana University Press, 2009.The book reviewed here has potential interest to a wide range of readers, whether researchers and academics, museum, curators, conservators or connoisseurs. It examines the perception of surface as an aspect of the indigenous understanding of sculpted objects in sub-Saharan Africa, treating of questions of materials, patination, colouration and use. It includes both survey essays and case studies (on the Bamana of Mali and the Yoriuba of Nigeria in a compendium which has suggestive implications beyond the immediate field of the Africanists to whom it is principally addressed.

  12. Pan-Africanism

    Directory of Open Access Journals (Sweden)

    Raul Diaz Guevara

    2013-04-01

    Full Text Available This essaic-article goes against established conventions that there is anything ethno-cultural (and hence national about the so-called African tribes. Drawing largely from the culture history of precolonial/prepolitical Africans—that is, the Bantu/Cushitic-Ethiopians (Azanians—the author has demonstrated vividly that far from being distinct ethno-culture national communities, the so-called tribes of African states are better considered subculture groups, whose regional culture practices erstwhile paid tribute to their nation’s main culture center in Karnak. For example, using the culture symbols and practices of some local groups and linking them to the predynastic and dynastic Pharaonic periods, I argued that there is compelling evidence against qualifying Africa’s tribes as distinct ethno-culture national entities. In genuine culture context, I stressed that the Ritual of Resurrection and its twin culture process of the mummification of deceased indigenous Pharaohs tend to suggest that the object of the Bantu/Cushitic-Ethiopians national culture was life (in its eternal manifestation and then resurrection later, and that there are recurring (culturally sanctioned ethical examples among the culture custodians of these subculture groups that generally pay tribute to the overarching culture norm. Furthermore, the fact that the Ritual of Resurrection began in the Delta region and ended at the Sources of the Nile, where the spirit of the deceased indigenous Pharaohs was introduced into the spiritual world of their ancestors, contradicts conventional perceptions that ancient Egypt was a distinct national community isolated from precolonial/prepolitical Africa/Azania.

  13. Central African Republic.

    Science.gov (United States)

    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.

  14. What Does it Mean to Be African American? Constructions of Race and Academic Identity in an Urban Public High School

    Science.gov (United States)

    Nasir, Na'ilah Suad; McLaughlin, Milbrey W.; Jones, Amina

    2009-01-01

    In this article, the authors explore variation in the meanings of racial identity for African American students in a predominantly African American urban high school. They view racial identity as both related to membership in a racial group and as fluid and reconstructed in the local school setting. They draw on both survey data and observational…

  15. African Ethnobotany in the Americas

    Directory of Open Access Journals (Sweden)

    Egleé L. Zent

    2013-10-01

    Full Text Available Review of African Ethnobotany in the Americas. Edited by Robert Voeks and John Rashford. 2013. Springer. Pp. 429, 105 illustrations, 69 color illustrations. $49.95 (paperback. ISBN 978‐1461408352.

  16. A new model for developing and executing culturally appropriate behavior modification clinical trials for African Americans.

    Science.gov (United States)

    Ard, Jamy D; Carter-Edwards, Lori; Svetkey, Laura P

    2003-01-01

    Past clinical trials addressing behavior modification for cardiovascular disease (CVD) prevention have not been culturally appropriate for African Americans. This supposition is borne out by the continued challenges researchers face not only in recruiting and retaining African Americans in clinical trials, but also in achieving the desired outcomes among this population. Investigators have limited resources to develop culturally appropriate CVD prevention trials. The scientific literature reveals 2 models for implementing culturally appropriate interventions applicable to CVD prevention among African Americans; however, these models are not easily applied to the clinical trial setting. We propose a new model for developing a culturally appropriate clinical trial. The clinical trial is a function of the investigator's cultural framework, meaning that an investigator will have more difficulty designing clinical trials appropriate for use with cultures other than his or her own, a definite limitation when attempting to effectively reach diverse populations. Differences between the cultural frameworks of most clinical trials and African Americans' cultural frameworks lead to intrinsic biases, limiting the ability of African Americans to achieve the desired outcomes for any particular trial. An African-American participant's degree of immersion in traditional African-American culture, or acculturation, influences the magnitude of these biases. Investigators must be aware of, and attempt to mitigate, such biases so that the trial's potential for success is equitable across ethnic groups. In addition, investigators must understand how to effectively address relevant biases of African Americans without challenging their ethnic identity. Steps to decrease biases are described.

  17. The African Genome Variation Project shapes medical genetics in Africa.

    Science.gov (United States)

    Gurdasani, Deepti; Carstensen, Tommy; Tekola-Ayele, Fasil; Pagani, Luca; Tachmazidou, Ioanna; Hatzikotoulas, Konstantinos; Karthikeyan, Savita; Iles, Louise; Pollard, Martin O; Choudhury, Ananyo; Ritchie, Graham R S; Xue, Yali; Asimit, Jennifer; Nsubuga, Rebecca N; Young, Elizabeth H; Pomilla, Cristina; Kivinen, Katja; Rockett, Kirk; Kamali, Anatoli; Doumatey, Ayo P; Asiki, Gershim; Seeley, Janet; Sisay-Joof, Fatoumatta; Jallow, Muminatou; Tollman, Stephen; Mekonnen, Ephrem; Ekong, Rosemary; Oljira, Tamiru; Bradman, Neil; Bojang, Kalifa; Ramsay, Michele; Adeyemo, Adebowale; Bekele, Endashaw; Motala, Ayesha; Norris, Shane A; Pirie, Fraser; Kaleebu, Pontiano; Kwiatkowski, Dominic; Tyler-Smith, Chris; Rotimi, Charles; Zeggini, Eleftheria; Sandhu, Manjinder S

    2015-01-15

    Given the importance of Africa to studies of human origins and disease susceptibility, detailed characterization of African genetic diversity is needed. The African Genome Variation Project provides a resource with which to design, implement and interpret genomic studies in sub-Saharan Africa and worldwide. The African Genome Variation Project represents dense genotypes from 1,481 individuals and whole-genome sequences from 320 individuals across sub-Saharan Africa. Using this resource, we find novel evidence of complex, regionally distinct hunter-gatherer and Eurasian admixture across sub-Saharan Africa. We identify new loci under selection, including loci related to malaria susceptibility and hypertension. We show that modern imputation panels (sets of reference genotypes from which unobserved or missing genotypes in study sets can be inferred) can identify association signals at highly differentiated loci across populations in sub-Saharan Africa. Using whole-genome sequencing, we demonstrate further improvements in imputation accuracy, strengthening the case for large-scale sequencing efforts of diverse African haplotypes. Finally, we present an efficient genotype array design capturing common genetic variation in Africa.

  18. The cardiometabolic syndrome in persons of the African diaspora: challenges and opportunities.

    Science.gov (United States)

    Schuster, Dara P; Gaillard, Trudy; Osei, Kwame

    2007-01-01

    Unique genetic traits appear to play a role in the increased rates of hypertension (HTN), glucose dysregulation/diabetes (T2DM), and obesity in persons of African descent. Indeed, with increasing rates of westernization/urbanization and concomitant increases in obesity and T2DM, a similar predisposition to the cardiometabolic syndrome and cardiovascular disease (CVD) can be seen in Africans compared with persons of African descent, with CVD reaching epidemic proportions in many areas of Africa. In addition, the complex relationships of metabolic abnormalities that are unique to individuals of African descent have also been demonstrated in Africans. These include: (1) a dissociation of HTN to insulin resistance; (2) relative favorable lipid profile in the setting of increasing rates of CVD; (3) low levels of visceral adiposity in the setting of obesity and insulin resistance; and (4) a dissociation of insulin sensitivity and adiponectin when compared with Caucasians. Although not well understood, these unique relationships suggest that conventional parameters for CVD do not apply to Africans of persons of African descent.

  19. The New African Civil-Military Relations

    DEFF Research Database (Denmark)

    on the African continent to embark upon the New African Civil Military Relations (ACMR). In the last decade and half, the implosion of African states exposed to forces of democratization has escalated, manifest in Algeria, Egypt, Mali, Madagascar, Somalia, South Sudan, Central African Republic and Lesotho...... accorded the responsibility of organizing a Session on ACMR. From amongst some of the exciting Abstracts presented, authors submitted these as full chapters for this book which captures International African Studies Perspectives, managed by the African Public Policy & Research Institute (APPRI...

  20. Africans’ Perception of the United States’ Post-9/11 Africa Policy and Africom

    Science.gov (United States)

    2008-06-13

    United States and Croatia than Senegal and Ethiopia. Another difficulty is to isolate the anti- neocolonialism factor and set it aside, as this thesis...entwined. However, anti- neocolonialism should not be underestimated, as non-Africans often tend to do, for it is probably one of the most powerful driving...interference in internal affairs, to the sovereignty of the African nations, and the denunciation of neocolonialism . Beijing also remembers that the

  1. Living Beyond Boundaries: West African Servicemen in French Colonial Conflicts, 1908-1962

    OpenAIRE

    2011-01-01

    Living Beyond Boundaries: West African Servicemen in French Colonial Conflicts, 1908-1962, is a history of French West African colonial soldiers who served in French Empire. Known by the misnomer tirailleurs sénégalais, these servicemen contributed to the expansion, maintenance, and defense of France's presence on several continents. The complex identity and shifting purpose of this institution were directly linked to French colonialism, but determined by numerous actors and settings. The...

  2. Regionalism and African agency: negotiating an Economic Partnership Agreement between the European Union and SADC- Minus

    OpenAIRE

    Murray-Evans, Peg

    2015-01-01

    This article investigates the regional dynamics of African agency in the case of negotiations for an Economic Partnership Agreement (EPA) between the EU and a group of Southern African countries, known as SADC-Minus. I argue that these negotiations were shaped by a pattern of differentiated responses to the choice set on offer under the EPAs by SADC-Minus policymakers and by a series of strategic interactions and power plays between them. I offer two contributions to an emerging literature on...

  3. Africa: Setting for Human Migration

    Science.gov (United States)

    Buuba, Babacar Diop

    2007-01-01

    Analysis of African migrations can help to understand prehistoric, historical, ancient modern and contemporaneous migrations. Movements of populations were and continue to be so intense that, for some analysts, they constitute one of the dominant trends of the history and destiny of the very old continent. African and non-African states, whether…

  4. Towards Improving Point-of-Care Diagnosis of Non-malaria Febrile Illness: A Metabolomics Approach.

    Directory of Open Access Journals (Sweden)

    Saskia Decuypere

    2016-03-01

    Full Text Available Non-malaria febrile illnesses such as bacterial bloodstream infections (BSI are a leading cause of disease and mortality in the tropics. However, there are no reliable, simple diagnostic tests for identifying BSI or other severe non-malaria febrile illnesses. We hypothesized that different infectious agents responsible for severe febrile illness would impact on the host metabolome in different ways, and investigated the potential of plasma metabolites for diagnosis of non-malaria febrile illness.We conducted a comprehensive mass-spectrometry based metabolomics analysis of the plasma of 61 children with severe febrile illness from a malaria-endemic rural African setting. Metabolite features characteristic for non-malaria febrile illness, BSI, severe anemia and poor clinical outcome were identified by receiver operating curve analysis.The plasma metabolome profile of malaria and non-malaria patients revealed fundamental differences in host response, including a differential activation of the hypothalamic-pituitary-adrenal axis. A simple corticosteroid signature was a good classifier of severe malaria and non-malaria febrile patients (AUC 0.82, 95% CI: 0.70-0.93. Patients with BSI were characterized by upregulated plasma bile metabolites; a signature of two bile metabolites was estimated to have a sensitivity of 98.1% (95% CI: 80.2-100 and a specificity of 82.9% (95% CI: 54.7-99.9 to detect BSI in children younger than 5 years. This BSI signature demonstrates that host metabolites can have a superior diagnostic sensitivity compared to pathogen-detecting tests to identify infections characterized by low pathogen load such as BSI.This study demonstrates the potential use of plasma metabolites to identify causality in children with severe febrile illness in malaria-endemic settings.

  5. African horse sickness.

    Science.gov (United States)

    Mellor, Philip Scott; Hamblin, Christopher

    2004-01-01

    African horse sickness virus (AHSV) causes a non-contagious, infectious insect-borne disease of equids and is endemic in many areas of sub-Saharan Africa and possibly Yemen in the Arabian Peninsula. However, periodically the virus makes excursions beyond its endemic areas and has at times extended as far as India and Pakistan in the east and Spain and Portugal in the west. The vectors are certain species of Culicoides biting midge the most important of which is the Afro-Asiatic species C. imicola. This paper describes the effects that AHSV has on its equid hosts, aspects of its epidemiology, and present and future prospects for control. The distribution of AHSV seems to be governed by a number of factors including the efficiency of control measures, the presence or absence of a long term vertebrate reservoir and, most importantly, the prevalence and seasonal incidence of the major vector which is controlled by climate. However, with the advent of climate-change the major vector, C. imicola, has now significantly extended its range northwards to include much of Portugal, Spain, Italy and Greece and has even been recorded from southern Switzerland. Furthermore, in many of these new locations the insect is present and active throughout the entire year. With the related bluetongue virus, which utilises the same vector species of Culicoides this has, since 1998, precipitated the worst outbreaks of bluetongue disease ever recorded with the virus extending further north in Europe than ever before and apparently becoming endemic in that continent. The prospects for similar changes in the epidemiology and distribution of AHSV are discussed.

  6. The Impact of Sexual of Orientation and Gender Expression Bias on African American Students

    Science.gov (United States)

    Majied, Kamilah F.

    2010-01-01

    This article discusses sexual orientation and gender expression bias as they impact the educational experience of African American students. Sexual orientation and gender expression bias have a unique presentation in Black educational settings. The climate in such settings can be metagrobolized by the combination of distorted notions of Black…

  7. Increasing Reading Engagement in African American Boys

    Science.gov (United States)

    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…

  8. African Centered Knowledge: A British Perspective.

    Science.gov (United States)

    Christian, Mark

    2001-01-01

    Considers the impact of African centered knowledge within the United Kingdom. Recent development of African Diaspora studies has forged links between various black Atlantic communities. The United Kingdom has experienced positive grassroots community response to the work of noted African centered scholars, yet within the British academy,…

  9. Empowering African genomics for infectious disease control.

    Science.gov (United States)

    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.

  10. African American Teaching and the Matriarchal Performance.

    Science.gov (United States)

    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…

  11. Developing programs for african families, by african families

    DEFF Research Database (Denmark)

    Halliday, Jennifer A; Green, Julie; Mellor, David

    2013-01-01

    Obesity is an emerging problem for African migrants in Australia, but few prevention programs incorporate their cultural beliefs and values. This study reports on the application of community capacity-building and empowerment principles in 4 workshops with Sudanese families in Australia. Workshop...

  12. A therapeutic community as a relevant and efficient ecclesial model in African Christianity

    Directory of Open Access Journals (Sweden)

    Matsobane Manala

    2016-05-01

    Full Text Available This article sets forth the argument that Christian ministry in Africa must become socially and culturally informed and constructed or else it will not touch the African soul and thus remain superficial. Black African people aspire above everything else to experience fullness of life and wellbeing here and now, as demonstrated by their greetings that are actually an enquiry into each other’s health and an expression of the wish for the other’s good health and wellbeing. The mainline churches that operate in Africa should embrace the scripturally sound Christian healing ministry in obedience to Christ’s commission to preach the gospel and heal the sick, if they are to prosper. Hence, this article discusses the following eight points, namely, (1 good health and healing as Africans’ important aspiration, (2 healing as the work of God and thus of the church, (3 the imperative of serious consideration of and respect for the African worldview, (4 membership decline and mainline churches’ loss of influence, (5 rethinking church in African Christianity, (6 the need for the black African church to adopt a therapeutic or healing community ecclesial model in order to position itself strategically to cater for the holistic needs of African (South African church members and surrounding communities, (7 the rationale of the healing ministry in today’s Reformed Church in Africa and (8 the recommended healing ministry. The article closes with a few concluding statements and advice

  13. How student teachers understand African philosophy

    Directory of Open Access Journals (Sweden)

    Matsephe M. Letseka

    2012-10-01

    Full Text Available The question ‘What constitutes African philosophy?’ was first raised with the publication of Placide Tempels’s seminal work Bantu philosophy in 1959. Tempels’s book inevitably elicited considerable critical response from African philosophers, which culminated in a wide range of publications such as Wiredu’s (1980 Philosophy and an African culture, Hountondji’s (1983 African philosophy: Myth and reality, Oruka’s (1990 Sage philosophy: Indigenous thinkers and modern debate on African philosophy, Shutte’s (1993 Philosophy for Africa, Masolo’s (1994 African philosophy in search of identity and Gyekye’s (1995 An essay of African philosophical thought: The Akan conceptual scheme. It has been over 60 years since the publication of Temples’s book and there continues to be serious debate about African philosophy. This article sought to contribute to the debate on the various conceptions of African philosophy, but with a focus on the challenges of teaching African philosophy to Philosophy of Education students at an open distance learning institution in South Africa. This article discussed the tendency amongst undergraduate Philosophy of Education students to conflate and reduce African philosophy to African cultures and traditions, and to the notion of ubuntu, and sought to understand the reasons for students’ inclination to treat African philosophy in this way. It examined students’ background knowledge of African philosophy, their critical thinking skills and whether their official study materials are selected and packaged in a manner that, in fact, adds to the challenges they face. Finally, the article explored the ways in which Philosophy of Education lecturers can adapt their pedagogy to provide students with a better understanding of African philosophy.

  14. "Two souls, two thoughts," two self-schemas: double consciousness can have positive academic consequences for African Americans.

    Science.gov (United States)

    Brannon, Tiffany N; Markus, Hazel Rose; Taylor, Valerie Jones

    2015-04-01

    African Americans can experience a double consciousness-the two-ness of being an American and an African American. The present research hypothesized that: (a) double consciousness can function as 2 self-schemas-an independent self-schema tied to mainstream American culture and an interdependent self-schema tied to African American culture, and (b) U.S. educational settings can leverage an interdependent self-schema associated with African American culture through inclusive multicultural practices to facilitate positive academic consequences. First, a pilot experiment and Studies 1 and 2 provided evidence that double consciousness can be conceptualized as 2 self-schemas. That is, African Americans shifted their behavior (e.g., cooperation) in schema-relevant ways from more independent when primed with mainstream American culture to more interdependent when primed with African American culture. Then, Studies 3 and 4 demonstrated that incorporating African American culture within a university setting enhanced African Americans' persistence and performance on academic-relevant tasks. Finally, using the Gates Millennium Scholars dataset (Cohort 1), Study 5 conceptually replicated Studies 3 and 4 and provided support for one process that underlies the observed positive academic consequences. Specifically, Study 5 provided evidence that engagement with African American culture (e.g., involvement with cultural events/groups) on college campuses makes an interdependent self-schema more salient that increases African American students' sense of academic fit and identification, and, in turn, enhances academic performance (self-reported grades) and persistence (advanced degree enrollment in a long-term follow-up). The discussion examines double consciousness as a basic psychological phenomenon and suggests the intra- and intergroup benefits of inclusive multicultural settings.

  15. Therapeutic drug monitoring of nevirapine in resource-limited settings.

    NARCIS (Netherlands)

    L'homme, R.F.A.; Muro, E.P.; Droste, J.A.H.; Wolters, L.R.; Kolmer, NW van Ewijk-Benek; Schimana, W.; Burger, D.M.

    2008-01-01

    BACKGROUND: We developed a simple and inexpensive thin-layer chromatography (TLC) assay for semiquantitative detection of saliva concentrations of nevirapine in resource-limited settings. The method was validated in an African target population. METHODS: Paired plasma and saliva nevirapine concentra

  16. East African odontopygid millipedes 1

    DEFF Research Database (Denmark)

    Frederiksen, Sara B.; Enghoff, Henrik

    2012-01-01

    Five new species of the endemic East African genus Xystopyge are described: X. pelecys, X. frontieri, X. proplicatus, X. biacanthus, and X. zanzibarensis. Three are from the Eastern Arc Mountains, Tanzania, two are from the Usambara Mtns. and one is from the Uluguru Mtns. One further species is f...

  17. Classic African American Children's Literature

    Science.gov (United States)

    McNair, Jonda C.

    2010-01-01

    The purpose of this article is to assert that there are classic African American children's books and to identify a sampling of them. The author presents multiple definitions of the term classic based on the responses of children's literature experts and relevant scholarship. Next, the manner in which data were collected and analyzed in regard to…

  18. Acute rheumatic fever and rheumatic heart disease in resource-limited settings.

    Science.gov (United States)

    Watson, Gabriella; Jallow, Bintou; Le Doare, Kirsty; Pushparajah, Kuberan; Anderson, Suzanne T

    2015-04-01

    Poststreptococcal complications, such as acute rheumatic fever (ARF) and rheumatic heart disease (RHD), are common in resource-limited settings, with RHD recognised as the most common cause of paediatric heart disease worldwide. Managing these conditions in resource-limited settings can be challenging. We review the investigation and treatment options for ARF and RHD and, most importantly, prevention methods in an African setting.

  19. Correlates of Psychological Distress and Major Depressive Disorder Among African American Men.

    Science.gov (United States)

    Lincoln, Karen D; Taylor, Robert Joseph; Watkins, Daphne C; Chatters, Linda M

    2011-05-01

    This study examines the demographic correlates of depressive symptoms, serious psychological distress (SPD), and major depressive disorder (MDD; 12-month and lifetime prevalence) among a national sample of African American men. Analysis of the National Survey of American Life (NSAL) data set provides first-time substantiation of important demographic differences in depressive symptoms (measured by the Center for Epidemiological Studies Depression scale [CES-D]), SPD (measured by the K6), and 12-month and lifetime MDD among African American men. Findings illuminate the heterogeneity within the African American male population. Findings also demonstrate the need for additional research focusing on within-group differences and a comprehensive research and mental health promotion agenda that recognizes the importance of improving access to education and employment and promoting healthy coping behaviors, while acknowledging the larger social context in which African American men live.

  20. Successful African American women in science: A narrative inquiry

    Science.gov (United States)

    Petty, Cailisha L.

    This study used narrative inquiry as a methodology to explore the lived experiences of five African American women in science across the academic spectrum, from doctoral candidate to full professor. The research questions guiding the inquiry included one overarching question and three sub-questions: What are the lifestories of successful African American women in science?; a) How do successful African American women in science define themselves?; b) What have been the facilitators and barriers encountered by successful African American women in science?; and c) What have been the systems of support for African American women in science? The study was theoretically positioned within the frameworks of Critical Race Theory and Black Feminist Thought. The two theories were used to guide all aspects of the study including methodology, data collection, and analysis. Data included eleven 40-60 minute semi-structured interview transcripts as well as the participants' Curriculum Vitae. The study design and data analysis were built upon Clandinin and Connelly's (2000) and Clandinin's (2006) model of narrative inquiry which explores narratives as a means to understand experience. Analysis and interpretation created three dominant narratives: Scientific Beginnings, An Unexpected Journey, and Lift as You Climb. Each narrative set explores multiple stories that describe storylines which aligned with the participants' goals of who they were and who they were becoming as scientists; and, storylines of tension which ran counter to the women's goals and aspirations. Barriers and support systems are revealed, as well as the meanings the participants made of their experiences and how it affected their lives.

  1. Updated and new data sets for WDMAM 2011

    Science.gov (United States)

    Korhonen, Juha V.

    2010-05-01

    Poster outlines major updated and released data sets for WDMAM2011, including MF6-model, ADMAP profile and point data, Arctic subsets, NURE, joint Russia and nearby countries, Australia version 4, NGDC oceanic profiles, Ishihara group oceanic set, Getech 7,5 minutes grid, and some new coverage on oceans and continental areas like Cuba, British Guyana and further South American and African countries. More information at http://projects.gtk.fi/WDMAM/

  2. Obesity and type 2 diabetes in sub-Saharan Africans - Is the burden in today's Africa similar to African migrants in Europe? : The RODAM study

    NARCIS (Netherlands)

    Agyemang, Charles; Meeks, Karlijn; Beune, Erik; Owusu-Dabo, Ellis; Mockenhaupt, Frank P; Addo, Juliet; de Graft Aikins, Ama; Bahendeka, Silver; Danquah, Ina; Schulze, Matthias B; Spranger, Joachim; Burr, Tom; Agyei-Baffour, Peter; Amoah, Stephen K; Galbete, Cecilia; Henneman, Peter; Klipstein-Grobusch, Kerstin; Nicolaou, Mary; Adeyemo, Adebowale; van Straalen, Jan; Smeeth, Liam; Stronks, Karien

    2016-01-01

    BACKGROUND: Rising rates of obesity and type 2 diabetes (T2D) are impending major threats to the health of African populations, but the extent to which they differ between rural and urban settings in Africa and upon migration to Europe is unknown. We assessed the burden of obesity and T2D among Ghan

  3. Transcutaneous bilirubin nomograms in African neonates

    Science.gov (United States)

    Mabogunje, Cecilia A.; Imosemi, Donald O.; Emokpae, Abieyuwa A.

    2017-01-01

    Background The use of transcutaneous bilirubin (TcB) as a screening tool, based on relevant population-specific nomogram, or proxy for total serum bilirubin (TSB) levels in assessing the risk of subsequent hyperbilirubinemia is supported by several clinical guidelines on the management of neonatal hyperbilirubinemia. However, while TcB has been found to significantly over-estimate TSB in neonates of African-American ancestry, with variations across TcB devices, no nomogram has been specifically reported for this racial group. This study therefore set out to develop TcB nomograms for healthy late pre-term and term black African neonates derived from two widely used bilirubinometers. Methods A retrospective analysis of 12,377 TcB measurements obtained from 6,373 neonates in the first postnatal week, over a period of 48 months using Bilichek and JM-103 bilirubinometers. TcB percentiles were computed from hour-specific TcB values and nomograms developed for each of the screening devices. Predictive ability of the 75th and 95th percentiles to detect significant hyperbilirubinemia was evaluated between 24–96 hours of age. The 95th percentile curve was compared with those from other populations. Results The velocity of TcB rise at 75th and 95th percentiles was generally higher with JM-103 than Bilichek. Both percentiles also peaked at higher TcB levels with JM-103. The 95th percentile for both instruments showed a downward trend as from approximately 114 hours. Both instruments had high negative predictive values across the selected time-epochs and lower discriminatory ability than reported in non-black populations. Conclusions The predictive utility of TcB as a potential screening tool varies across devices in black African neonates with or without risk of significant hyperbilirubinemia, and lower than levels reported in non-black populations. Equipment-specific nomograms should be considered for TcB monitoring in this racial population where TSB is not routinely

  4. Atmospheric microbiology in the northern Caribbean during African dust events

    Science.gov (United States)

    Griffin, Dale W.; Kellogg, C.A.; Garrison, V.H.; Lisle, J.T.; Borden, T.C.; Shinn, E.A.

    2003-01-01

    Between July 2000 and August 2001 forty-three air samples were collected in the northern Caribbean: Twenty-six in the US Virgin Islands, and 17 samples aboard ship during two 1-week cruises. Samples were collected during African dust events and non-dust conditions and screened for the presence of culturable bacteria and fungi. A total of 3,652 liters of air were collected during non-dust conditions, with 19 bacteria and 28 fungi being recovered. During dust conditions a total of 2,369 liters of air were screened resulting in the recovery of 171 bacteria and 76 fungi. A statistically significant difference was found between the two data sets. These results support previous African dust research and further demonstrate that dust particles can serve as a vessel for the global dispersion of bacteria and fungi. Dustborne microorganisms may play a significant role in the ecology and health of downwind ecosystems.

  5. Schistosomes in South African penguins.

    Science.gov (United States)

    Aldhoun, Jitka A; Horne, Elizabeth C

    2015-01-01

    During the years 2009-2012, faeces of African penguins (Spheniscus demersus L.) from South African rehabilitation centres were examined for helminths. In total, 46 out 555 samples (8.29 %), mostly belonging to adult birds, were found to contain oval schistosome eggs with a spine on one pole. Their dimensions were 153.21 ± 9.07 × 87.14 ± 8.67 μm. Selected DNA fragments (18S, 28S and ITS rDNA) were sequenced and compared to other schistosome isolates deposited in GenBank. The shape of the eggs suggests that they belong to the genus Gigantobilharzia; however, due to the insufficient stage of knowledge of the genus and limited number of species available for comparison, we were not able to assign the isolate unambiguously to this genus based on either the egg morphology or the results of molecular analysis.

  6. Afri-Can Forum 2

    OpenAIRE

    Sartorius, Benn; Coetzee, Jenny; Mokgatswana, Kgaugelo; Jewkes, Rachel; Gray, Glenda E.; Dugas, Marylène; Gagnon, Marie-Pierre; Rutakumwa, Rwamahe; Mbonye, Martin; Kiwanuka, Thadeus; Nakamanya, Sarah; Muhumuza, Richard; Nalukenge, Winfred; Seeley, Janet; Atujuna, Millicent

    2016-01-01

    Table of contents A1 Introduction to the 2nd synchronicity forum of GHRI/CHVI-funded Canadian and African HIV prevention and vaccine teams O1 Voluntary medical male circumcision for prevention of heterosexual transmission of HIV in adult males in Soweto: What do indicators and incidence rate show? Hillary Mukudu, Neil Martinson, Benn Sartorius O2 Developing a peer-led community mobilization program for sex workers in Soweto: HIV risk and demographics Jenny Coetzee, Janan Dietrich, Kgaugelo Mo...

  7. African financial systems: A review

    Directory of Open Access Journals (Sweden)

    Franklin Allen

    2011-04-01

    Full Text Available We start by providing an overview of financial systems in the African continent. We then consider the regions of Arab North Africa, West Africa, East and Central Africa, and Southern Africa in more detail. The paper covers, among other things, central banks, deposit-taking banks, non-bank institutions, such as the stock markets, fixed income markets, insurance markets, and microfinance institutions.

  8. African management : concept, content and usability.

    OpenAIRE

    Seny Kan, K. A.; Apitsa, S.M.; Adegbite, E.

    2015-01-01

    Purpose While management research in African context is all but invisible in management literature, the notion of "African management" emerges through a piecemeal corpus of literature that has arisen in response to the exclusion and marginalisation of Africa in the broad field of management literature. The idea underlying this reasoning is that the Western management model prevailing so far in Africa is inadequate because of cultural considerations. However, what is meant by “African manag...

  9. Aspects of the phytogeography of African Pteridophyta

    Directory of Open Access Journals (Sweden)

    E. A. C. L. E. Schelpe

    1983-12-01

    Full Text Available A diversity of distribution patterns exhibited by African pteridophytes on intercontinental and continental scales are presented. Occasional random dispersal among the Pteridophyta over long distances is accepted. The ecological importance of the gametophyte phase is inferred. Future progress in the elucidation of African fern phytogeography will require a broader alpha-taxonomic pan-African base and the plotting of many more distribution maps.

  10. Health-promoting lifestyles and exercise: a comparison of older African American women above and below poverty level.

    Science.gov (United States)

    Brady, B; Nies, M A

    1999-06-01

    The purpose of this study was to compare the health-promoting behaviors and exercise behaviors of older African American women above and below poverty level. Fifty-eight African American women completed a demographic form and the Health Promoting Lifestyle Profile (HPLP). Results indicated that African American women living above the poverty level had higher overall scores on the total HPLP and higher scores on the exercise subscale of the HPLP than women living below poverty level. Implications include teaching culturally specific, practical, and inexpensive exercise activities in primary care and community settings.

  11. From the Palaeozoic collapse of the East African-Antarctic Orogen to Gondwana rifting in NE Mozambique

    OpenAIRE

    Jacobs, J; Emmel, B.; Ueda, K.; Thomas, R J; Kosler, J.; Horstwood, M.; Jordan, F.; Kleinhanns, I.; Engvik, A.; B. Bingen; Daudi, E.X.

    2011-01-01

    The East African passive margin resulted from complex reactivation of the ca. 600–500 Ma East African-Antarctic Orogen (EAAO). With the help of a large set of new thermochronological data (U-Pb titanite, Ar-Ar hornblende and biotite, as well as zircon, titanite and apatite fission-track analyses) we have modelled the tectono-thermal history of NE Mozambique from the late (Lower Palaeozoic) stages of the East African-Antarctic Orogeny to its transformation into a passive margin in the Mesozoic.

  12. Fuzzy sets, rough sets, multisets and clustering

    CERN Document Server

    Dahlbom, Anders; Narukawa, Yasuo

    2017-01-01

    This book is dedicated to Prof. Sadaaki Miyamoto and presents cutting-edge papers in some of the areas in which he contributed. Bringing together contributions by leading researchers in the field, it concretely addresses clustering, multisets, rough sets and fuzzy sets, as well as their applications in areas such as decision-making. The book is divided in four parts, the first of which focuses on clustering and classification. The second part puts the spotlight on multisets, bags, fuzzy bags and other fuzzy extensions, while the third deals with rough sets. Rounding out the coverage, the last part explores fuzzy sets and decision-making.

  13. Ancient structure in Africa unlikely to explain Neanderthal and non-African genetic similarity.

    Science.gov (United States)

    Yang, Melinda A; Malaspinas, Anna-Sapfo; Durand, Eric Y; Slatkin, Montgomery

    2012-10-01

    Neanderthals have been shown to share more genetic variants with present-day non-Africans than Africans. Recent admixture between Neanderthals and modern humans outside of Africa was proposed as the most parsimonious explanation for this observation. However, the hypothesis of ancient population structure within Africa could not be ruled out as an alternative explanation. We use simulations to test whether the site frequency spectrum, conditioned on a derived Neanderthal and an ancestral Yoruba (African) nucleotide (the doubly conditioned site frequency spectrum [dcfs]), can distinguish between models that assume recent admixture or ancient population structure. We compare the simulations to the dcfs calculated from data taken from populations of European, Chinese, and Japanese descent in the Complete Genomics Diversity Panel. Simulations under a variety of plausible demographic parameters were used to examine the shape of the dcfs for both models. The observed shape of the dcfs cannot be explained by any set of parameter values used in the simulations of the ancient structure model. The dcfs simulations for the recent admixture model provide a good fit to the observed dcfs for non-Africans, thereby supporting the hypothesis that recent admixture with Neanderthals accounts for the greater similarity of Neanderthals to non-Africans than Africans.

  14. Gentle Africanized bees on an oceanic island.

    Science.gov (United States)

    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. Cultural aspects of African American eating patterns.

    Science.gov (United States)

    Airhihenbuwa, C O; Kumanyika, S; Agurs, T D; Lowe, A; Saunders, D; Morssink, C B

    1996-09-01

    The high mortality from diet-related diseases among African Americans strongly suggests a need to adopt diets lower in total fat, saturated fat and salt and higher in fiber. However, such changes would be contrary to some traditional African American cultural practices. Focus group interviews were used to explore cultural aspects of eating patterns among low- and middle-income African Americans recruited from an urban community in Pennsylvania. In total, 21 males and 32 females, aged 13-65+ years were recruited using a networking technique. Participants identified eating practices commonly attributed to African Americans and felt that these were largely independent of socioeconomic status. They were uncertain about links between African American eating patterns and African origins but clear about influences of slavery and economic disadvantage. The perception that African American food patterns were characteristically adaptive to external conditions, suggest that, for effective dietary change in African American communities, changes in the food availability will need to precede or take place in parallel with changes recommended to individuals. Cultural attitudes about where and with whom food is eaten emerged as being equivalent in importance to attitudes about specific foods. These findings emphasize the importance of continued efforts to identify ways to increase the relevance of cultural context and meanings in dietary counseling so that health and nutrition interventions are anchored in values as perceived, in this case, by African Americans.

  16. Race, health, and the African Diaspora.

    Science.gov (United States)

    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.

  17. The African diaspora: history, adaptation and health.

    Science.gov (United States)

    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.

  18. African American girls and the challenges ahead.

    Science.gov (United States)

    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.

  19. The Partial Fuzzy Set

    OpenAIRE

    Dr.Pranita Goswami

    2011-01-01

    The Partial Fuzzy Set is a portion of the Fuzzy Set which is again a Fuzzy Set. In the Partial Fuzzy Set the baseline is shifted from 0 to 1 to any of its α cuts . In this paper we have fuzzified a portion of the Fuzzy Set by transformation

  20. African Agency and EU–African Economic Partnership Agreements

    Directory of Open Access Journals (Sweden)

    Dirk Kohnert

    2014-01-01

    Full Text Available Review Article: European Parliament (EP (ed. (2014, African, Caribbean and Pacific (ACP Countries’ Position on Economic Partnership Agreements (EPAs, Brussels: European Parliament, Directorate-General for External Policies, Policy Department, April, ISBN 978-92-823- 5667-8, 84 pp. Contemporary Politics (2014, vol. 20, issue 1, Special Issue: Perspectives on the Trade–Development Nexus in the European Union, London: Routledge, ISSN: 1356-9775 (print, 1469-3631 (online, 126 pp. Trommer, Silke (2014, Transformations in Trade Politics: Participatory Trade Politics in West Africa, London: Routledge, ISBN: 978-0- 415-81973-2, 232 pp.

  1. Fragile states and protection under the 1969 African Refugee Convention

    Directory of Open Access Journals (Sweden)

    Tamara Wood

    2013-05-01

    Full Text Available Current practice in African states highlights both the potential andthe limitations of the 1969 African Refugee Convention in providingprotection to persons displaced from fragile states.

  2. Spatial air pollution modelling for a West-African town

    Directory of Open Access Journals (Sweden)

    Sirak Zenebe Gebreab

    2015-11-01

    Full Text Available Land use regression (LUR modelling is a common approach used in European and Northern American epidemiological studies to assess urban and traffic related air pollution exposures. Studies applying LUR in Africa are lacking. A need exists to understand if this approach holds for an African setting, where urban features, pollutant exposures and data availability differ considerably from other continents. We developed a parsimonious regression model based on 48-hour nitrogen dioxide (NO2 concentrations measured at 40 sites in Kaédi, a medium sized West-African town, and variables generated in a geographic information system (GIS. Road variables and settlement land use characteristics were found to be important predictors of 48-hour NO2 concentration in the model. About 68% of concentration variability in the town was explained by the model. The model was internally validated by leave-one-out cross-validation and it was found to perform moderately well. Furthermore, its parameters were robust to sampling variation. We applied the model at 100 m pixels to create a map describing the broad spatial pattern of NO2 across Kaédi. In this research, we demonstrated the potential for LUR as a valid, cost-effective approach for air pollution modelling and mapping in an African town. If the methodology were to be adopted by environmental and public health authorities in these regions, it could provide a quick assessment of the local air pollution burden and potentially support air pollution policies and guidelines.

  3. Fighting African Capital Flight: Empirics on Benchmarking Policy Harmonization

    Directory of Open Access Journals (Sweden)

    Simplice A. Asongu

    2014-06-01

    Full Text Available With earthshaking and heartbreaking trends in African capital flight provided by a new database, this paper complements existing literature by answering some key policy questions on the feasibility of and timeframe for policy harmonization in the battle against the economic scourge. The goal of the paper is to study beta-convergence of capital flight across a set of 37 African countries in the period 1980-2010 and to discuss the policy implications. Three main findings are established. (1 African countries with low capital flight rates are catching-up their counterparts with higher rates, implying the feasibility ofpolicy harmonization towards fighting capital flight. (2 Petroleum-exporting and conflict-affected countries significantly play out in absolute and conditional convergences respectively. (3 Regardless of fundamental characteristics, a genuine timeframe for harmonizing policies is within a horizon of 6 to 13 years. Inother words, full (100% convergence within the specifiedhorizon is an indication that policies and regulations can be enforced without distinction of nationality or locality.

  4. A Snapshot: South African University Students' Attitudes, Perceptions and Knowledge of HIV/AIDS

    Science.gov (United States)

    Raijmakers, L. R.; Pretorius, J. D.

    2006-01-01

    This article presents the findings of a survey conducted in August 2004 of students' attitudes, perceptions and knowledge about sexually transmitted infections, HIV/AIDS and sexual practices at an Institution of Higher Education. The study was set against the backdrop of the 2004 South African national survey, conducted by the Reproductive Health…

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

    Science.gov (United States)

    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:…

  6. Physiologic Responses to Racial Rejection Images among Young Adults from African-American Backgrounds

    Science.gov (United States)

    Kiang, Lisa; Blumenthal, Terry D.; Carlson, Erika N.; Lawson, Yolanda N.; Shell, J. Clark

    2009-01-01

    Physiologic reactivity to racially rejecting images was assessed in 35 young adults (10 males, 25 female) from African-American backgrounds using the startle probe paradigm. In a laboratory setting, participants viewed 16 images depicting racial rejection, racial acceptance, nonracial negative, and nonracial positive themes. While viewing these…

  7. Correlates of Psychological Distress and Major Depressive Disorder among African American Men

    Science.gov (United States)

    Lincoln, Karen D.; Taylor, Robert Joseph; Watkins, Daphne C.; Chatters, Linda M.

    2011-01-01

    This study examines the demographic correlates of depressive symptoms, serious psychological distress (SPD), and major depressive disorder (MDD; 12-month and lifetime prevalence) among a national sample of African American men. Analysis of the National Survey of American Life (NSAL) data set provides first-time substantiation of important…

  8. Negating Stereotype Threat: Autonomy Support and Academic Identification Boost Performance of African American College Students

    Science.gov (United States)

    Nadler, Dustin R.; Komarraju, Meera

    2016-01-01

    Using a 2 × 2 factorial design, we examined the effects of stereotype threat and autonomy support on the test performance of 190 African American college students. Participants completed a set of 7 easy and 7 difficult problems from Raven's Progressive Matrices and a survey including measures of Academic Self-Concept, Learning Climate, and…

  9. Educational Change in Post-Conflict Contexts: Reflections on the South African Experience 20 Years Later

    Science.gov (United States)

    Christie, Pam

    2016-01-01

    Reflecting on South African experience, this paper develops an analytical framework using the work of Henri Lefebvre and Nancy Fraser to understand why socially just arrangements may be so difficult to achieve in post-conflict reconstruction. The paper uses Lefebvre's analytic to trace three sets of entangled practices…

  10. Sexuality Education in South African Schools: The Challenge for Civil Society Organisations

    Science.gov (United States)

    Adams Tucker, Leigh; George, Gavin; Reardon, Candice; Panday, Saadhna

    2017-01-01

    Objective: Drawing on the perceptions of various key stakeholders, the paper explores the strengths and limitations of involving civil society organisations in the delivery of HIV and AIDS and sexuality education in South African schools. Design: Qualitative study with a cross-sectional design. Setting: Research was conducted at 16 public…

  11. Low-Income, African American Adolescent Mothers and Their Toddlers Exhibit Similar Dietary Variety Patterns

    Science.gov (United States)

    Papas, Mia A.; Hurley, Kristen M.; Quigg, Anna M.; Oberlander, Sarah E.; Black, Maureen M.

    2009-01-01

    Objective: To examine the relationship between maternal and toddler dietary variety. Design: Longitudinal; maternal and toddler dietary data were collected at 13 months; anthropometry was collected at 13 and 24 months. Setting: Data were collected in homes. Participants: 109 primiparous, low-income, African American adolescent mothers and…

  12. Writing History Backwards or Sideways: Towards a Consensus on African Population, 1850-present

    NARCIS (Netherlands)

    Frankema, E.H.P.; Jerven, M.

    2013-01-01

    This paper aims to make an empirical and theoretical contribution towards the creation of a continent wide data set on African population extending into the pre-1950 era. We investigate the reliability and the validity of the current population databases with the aim of working towards a consensus o

  13. Conflict and human African trypanosomiasis.

    Science.gov (United States)

    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.

  14. African American Teachers and Culturally Relevant Pedagogy.

    Science.gov (United States)

    Foster, Michele

    An overview is presented of research on African American teachers, addressing the large body of literature written by policy analysts, first-person narratives, and the sociological and anthropological literature. Policy research has identified the small number of African American teachers and has studied some reasons for this shortage and some of…

  15. Prostate cancer in men of African origin.

    Science.gov (United States)

    McGinley, Kathleen F; Tay, Kae Jack; Moul, Judd W

    2016-02-01

    Men of African origin are disproportionately affected by prostate cancer: prostate cancer incidence is highest among men of African origin in the USA, prostate cancer mortality is highest among men of African origin in the Caribbean, and tumour stage and grade at diagnosis are highest among men in sub-Saharan Africa. Socioeconomic, educational, cultural, and genetic factors, as well as variations in care delivery and treatment selection, contribute to this cancer disparity. Emerging data on single-nucleotide-polymorphism patterns, epigenetic changes, and variations in fusion-gene products among men of African origin add to the understanding of genetic differences underlying this disease. On the diagnosis of prostate cancer, when all treatment options are available, men of African origin are more likely to choose radiation therapy or to receive no definitive treatment than white men. Among men of African origin undergoing surgery, increased rates of biochemical recurrence have been identified. Understanding differences in the cancer-survivorship experience and quality-of-life outcomes among men of African origin are critical to appropriately counsel patients and improve cultural sensitivity. Efforts to curtail prostate cancer screening will likely affect men of African origin disproportionately and widen the racial disparity of disease.

  16. A Mirror Image African American Student Reflections

    Science.gov (United States)

    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. France: Africans and the French Revolution.

    Science.gov (United States)

    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…

  18. British African Caribbean Women and Depression

    Science.gov (United States)

    Adkison-Bradley, Carla; Maynard, Donna; Johnson, Phillip; Carter, Stephaney

    2009-01-01

    Depression is a common condition among women in the United Kingdom. However, little is known about the context of depression among British African Caribbean women. This article offers a preliminary discussion regarding issues and information pertaining to depression among British African Caribbean women. Characteristics and symptoms of depression…

  19. Precolonial African History. AHA Pamphlets, 501.

    Science.gov (United States)

    Curtin, Philip D.

    This pamphlet surveys western historiography of precolonial Africa. Prior to World War II, African history emphasized the European role in Africa, relegating African history before European colonization to minor importance. Only after the increase in university enrollments and funding in the 1960's did opportunities for innovative research and new…

  20. Hidden Education among African Americans during Slavery

    Science.gov (United States)

    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…

  1. A Reevaluation of African Education: Woodson Revisited.

    Science.gov (United States)

    Okafor, Victor Oguejiofor

    1992-01-01

    Reviews the ideas of C. G. Woodson (1875-1950) about the inappropriate education received by African Americans. Although Woodson's book, "The Mis-Education of the Negro," was written in 1933, his diagnosis of the state of the African-American community appears to hold up well today. (SLD)

  2. Depression, Sociocultural Factors, and African American Women

    Science.gov (United States)

    Hunn, Vanessa Lynn; Craig, Carlton David

    2009-01-01

    The authors discuss depression in African American women from a sociocultural perspective, including aspects of oppression and racism that affect symptom manifestation. The authors highlight John Henryism as a coping mechanism, the history and continuing role of the African American church as a safe haven, and strategies for culturally competent…

  3. South African cities and Globalization

    Directory of Open Access Journals (Sweden)

    Céline Vacchiani-Marcuzzo

    2010-09-01

    Full Text Available Illustration 1 – Centre des affaires, Le CapAuteur : Céline Vacchiani-Marcuzzo.Born with colonial settlement patterns, the South-African urban system has experienced half a century of Apartheid. Under the effects of globalization, this urban system evolves as more developed urban systems and mature settlement patterns. This urbanization process (in the limits of functional urban agglomeration makes South Africa one of the most advanced countries in Africa in terms of urban growth. The world-...

  4. African witchcraft in theological perspective

    Directory of Open Access Journals (Sweden)

    I.W.C. van Wyk

    2004-11-01

    Full Text Available This article is a theological contribution aimed at creating an understanding of the phenomenon of witchcraft in South Africa. Witchcraft still causes major social problems in this country. The article argues that the development of a culture of human rights and the improvement of the judicial process alone will not solve this problem. Witchcraft is a too deeply rooted religious phenomenon. The phenomenon is described in its religious complexity and diversity. Witchcraft is discussed within the framework of the African theodicy.

  5. Multiaspect Soft Sets

    Directory of Open Access Journals (Sweden)

    Nor Hashimah Sulaiman

    2013-01-01

    Full Text Available We introduce a novel concept of multiaspect soft set which is an extension of the ordinary soft set by Molodtsov. Some basic concepts, operations, and properties of the multiaspect soft sets are studied. We also define a mapping on multiaspect soft classes and investigate several properties related to the images and preimages of multiaspect soft sets.

  6. Nomenclature of African species of the genus Stenodactylus (Squamata: Gekkonidae).

    Science.gov (United States)

    Metallinou, Margarita; Crochet, Pierre-André

    2013-01-01

    The statuses of proposed nomina of the North African species of the genus Stenodactylus have been revised based on the study of their original descriptions and the examination of their name-bearing types. Important nomenclatural actions proposed include the designation of a lectotype for the nomen Stenodactylus guttatus ensuring continuity of the prevailing usage of S. petrii, and the proposal of maintaining prevailing usage of Stenodactylus sthenodactylus by applying to the International Commission of Zoological Nomenclature to set aside the existing name-bearing type and replace it with a neotype corresponding with that usage.

  7. Social Set Analysis

    DEFF Research Database (Denmark)

    Vatrapu, Ravi; Mukkamala, Raghava Rao; Hussain, Abid

    2016-01-01

    this limitation, based on the sociology of associations and the mathematics of set theory, this paper presents a new approach to big data analytics called social set analysis. Social set analysis consists of a generative framework for the philosophies of computational social science, theory of social data......, conceptual and formal models of social data, and an analytical framework for combining big social data sets with organizational and societal data sets. Three empirical studies of big social data are presented to illustrate and demonstrate social set analysis in terms of fuzzy set-theoretical sentiment...... analysis, crisp set-theoretical interaction analysis, and event-studies-oriented set-theoretical visualizations. Implications for big data analytics, current limitations of the set-theoretical approach, and future directions are outlined....

  8. African Americans and the medical establishment.

    Science.gov (United States)

    Smith, C

    1999-09-01

    The African American community's response to the AIDS epidemic has reflected the profound mistrust of the medical establishment which many African Americans feel. Among African Americans, the belief that the epidemic originated in a genocidal plot is widespread. It is thought that organized medicine has been significantly involved in this plot. If we look at African Americans' historical relationship to the medical establishment from the era of slavery to the recent past, the suspicious attitudes which make such beliefs possible can be seen as an intelligible response to a new disease which disproportionately affects African Americans. Successful medical and public health responses to the epidemic have depended and will continue to depend upon overcoming the historical legacy of suspicion and gaining the trust of the community.

  9. An African VLBI network of radio telescopes

    CERN Document Server

    Gaylard, M J; Combrinck, L; Booth, R S; Buchner, S J; Fanaroff, B L; MacLeod, G C; Nicolson, G D; Quick, J F H; Stronkhorst, P; Venkatasubramani, T L

    2014-01-01

    The advent of international wideband communication by optical fibre has produced a revolution in communications and the use of the internet. Many African countries are now connected to undersea fibre linking them to other African countries and to other continents. Previously international communication was by microwave links through geostationary satellites. These are becoming redundant in some countries as optical fibre takes over, as this provides 1000 times the bandwidth of the satellite links. In the 1970's and 1980's some two dozen large (30 m diameter class) antennas were built in various African countries to provide the satellite links. Twenty six are currently known in 19 countries. As these antennas become redundant, the possibility exists to convert them for radio astronomy at a cost of roughly one tenth that of a new antenna of similar size. HartRAO, SKA Africa and the South African Department of Science and Technology (DST) have started exploring this possibility with some of the African countries...

  10. Understanding the Rise of African Business

    DEFF Research Database (Denmark)

    Jorem, Kaja Tvedten; Hansen, Michael Wendelboe; Jeppesen, Søren

    2014-01-01

    enterprises, observing that while much research is focusing on the role of the African business environments for enterprise development, much less attention has been devoted to the role of firm-specific capabilities, strategies and management. The paper concludes by advocating a contingency approach......Purpose: In light of recent enthusiasm over African private sector development, the purpose of this paper is to review the business literature on African enterprise development with a view of identifying lacunas in the literature and of developing an analytical framework that may guide future...... research on this issue. Design/methodology/approach: The paper provides a review of the extant literature on African enterprise development by juxtaposing the traditional pessimistic view of African business performance with more recent, optimistic accounts. Based on the literature review, lacunas...

  11. The influence of Maloprim chemoprophylaxis on cellular and humoral immune responses to Plasmodium falciparum asexual blood stage antigens in schoolchildren living in a malaria endemic area of Mozambique

    DEFF Research Database (Denmark)

    Hogh, B; Thompson, R; Lobo, V;

    1994-01-01

    antigens. The study was carried out in the Escola Primária de Lingamo, a primary school in a suburban area of Maputo, Mozambique. A cohort of 392 schoolchildren (aged 7-12 years) was randomly allocated to two equal groups, one receiving chemoprophylaxis with dapsone/pyrimethamine (Maloprim), the other...... assays in vitro. Anti-GLURP and anti-Pf155/RESA antibodies were detected by enzyme-linked immunosorbent assay (ELISA) and erythrocyte membrane immunofluorescence (EMIF), and total anti-P. falciparum antibodies were measured by indirect fluorescent antibody test (IFAT). Immunological reactivities were...

  12. Antibodies against the Plasmodium falciparum glutamate-rich protein from naturally exposed individuals living in a Brazilian malaria-endemic area can inhibit in vitro parasite growth

    DEFF Research Database (Denmark)

    Pratt-Riccio, Lilian Rose; Bianco, Cesare; Totino, Paulo Renato Rivas

    2011-01-01

    The glutamate-rich protein (GLURP) is an exoantigen expressed in all stages of the Plasmodium falciparum life cycle in humans. Anti-GLURP antibodies can inhibit parasite growth in the presence of monocytes via antibody-dependent cellular inhibition (ADCI), and a major parasite-inhibitory region h...

  13. Whole cowpea meal fortified with NaFeEDTA reduces iron deficiency among Ghanaian school children in a malaria endemic area

    NARCIS (Netherlands)

    Abizari, A.R.; Moretti, D.; Schuth, S.; Zimmerman, M.B.; Armar-Klemesu, M.; Brouwer, I.D.

    2012-01-01

    Cowpeas, like other legumes, contain high amounts of native iron but are rich in phytic acid (PA) and polyphenols (PP) that inhibit iron absorption. NaFeEDTA may overcome the combined inhibitory effect of PA and PP. Our objective was to test the efficacy of NaFeEDTA-fortified cowpea meal in improvin

  14. Netting the malaria menace: Distribution and utilization of long-lasting insecticidal net in a malaria endemic area in Bankura, West Bengal

    Directory of Open Access Journals (Sweden)

    D K Mukhopadhyay

    2016-01-01

    Interpretation & conclusion: Around two-third population of the study area was effectively covered with LLIN. Higher proportion of socially marginalized people received LLIN. Threat perception regarding malaria was directly associated with both receipt and use of LLIN. Behaviour change communication on utilization along with adequate access to LLIN needs to be strengthened.

  15. Respondent-driven sampling on the Thailand-Cambodia border. II. Knowledge, perception, practice and treatment-seeking behaviour of migrants in malaria endemic zones

    Directory of Open Access Journals (Sweden)

    Kaewkungwal Jaranit

    2011-05-01

    Full Text Available Abstract Background Population movements along the Thailand-Cambodia border, particularly among highly mobile and hard-to-access migrant groups from Cambodia and Myanmar, are assumed to play a key role in the spread of artemisinin resistance. Data on treatment-seeking behaviours, knowledge and perceptions about malaria, and use of preventive measures is lacking as characteristics of this population prevent them from being represented in routine surveillance and the lack of a sampling frame makes reliable surveys challenging. Methods A survey of migrant populations from Cambodia and Myanmar was implemented in five selected rural locations in Thailand along the Thai-Cambodian border using respondent driven sampling (RDS to determine demographic characteristics of the population, migratory patterns, knowledge about malaria, and health-care -seeking behaviours. Results The majority of migrants from Myanmar are long-term residents (98% with no plans to move back to Myanmar, understand spoken Thai (77% and can therefore benefit from health messages in Thai, have Thai health insurance (99% and accessed public health services in Thailand (63% for their last illness. In comparison, the majority of Cambodian migrants are short-term (72%. Of the short-term Cambodian migrants, 92% work in agriculture, 18% speak Thai, 3.4% have Thai health insurance, and the majority returned to Cambodia for treatment (45%, self-treated (11%, or did not seek treatment for their last illness (27%. Conclusion Most highly mobile migrants along the Thai-Cambodia border are not accessing health messages or health treatment in Thailand, increasing their risk of malaria and facilitating the spread of potentially resistant Plasmodium falciparum as they return to Cambodia to seek treatment. Reaching out to highly mobile migrants with health messaging they can understand and malaria diagnosis and treatment services they can access is imperative in the effort to contain the spread of artemisinin-resistant P. falciparum.

  16. Short-lived IFN-γ effector responses, but long-lived IL-10 memory responses, to malaria in an area of low malaria endemicity.

    Directory of Open Access Journals (Sweden)

    Jiraprapa Wipasa

    Full Text Available Immunity to malaria is widely believed to wane in the absence of reinfection, but direct evidence for the presence or absence of durable immunological memory to malaria is limited. Here, we analysed malaria-specific CD4+ T cell responses of individuals living in an area of low malaria transmission in northern Thailand, who had had a documented clinical attack of P. falciparum and/or P. vivax in the past 6 years. CD4+ T cell effector memory (CD45RO+ IFN-γ (24 hours ex vivo restimulation and cultured IL-10 (6 day secretion into culture supernatant responses to malaria schizont antigens were detected only in malaria-exposed subjects and were more prominent in subjects with long-lived antibodies or memory B cells specific to malaria antigens. The number of IFN-γ-producing effector memory T cells declined significantly over the 12 months of the study, and with time since last documented malaria infection, with an estimated half life of the response of 3.3 (95% CI 1.9-10.3 years. In sharp contrast, IL-10 responses were sustained for many years after last known malaria infection with no significant decline over at least 6 years. The observations have clear implications for understanding the immunoepidemiology of naturally acquired malaria infections and for malaria vaccine development.

  17. Population structure of the malaria vector Anopheles darlingi in a malaria-endemic region of Eastern Amazonian Brazil

    DEFF Research Database (Denmark)

    Conn, Jan E.; Vineis, Joseph H.; Bollback, Jonathan Paul;

    2006-01-01

    Anopheles darlingi is the primary malaria vector in Latin America, and is especially important in Amazonian is the primary malaria vector in Latin America, and is especially important in Amazonian Brazil. Historically, control efforts have been focused on indoor house spraying using a variety...... malaria epidemic. In contrast, although An. darlingi was eradicated from some districts of the city of Belem (the capital of Para State) in 1968 to reduce malaria, populations around the water protection area in the eastern district were treated only briefly. To investigate the population structure of An...

  18. Provider knowledge of treatment policy and dosing regimen with artemether-lumefantrine and quinine in malaria-endemic areas of western Kenya

    Directory of Open Access Journals (Sweden)

    Watsierah Carren A

    2012-12-01

    Full Text Available Abstract Background Due to widespread anti-malarial drug resistance in many countries, Kenya included, artemisinin-based Combination Therapy (ACT has been adopted as the most effective treatment option against malaria. Artemether-lumefantrine (AL is the first-line ACT for treatment of uncomplicated malaria in Kenya, while quinine is preferred for complicated and severe malaria. Information on the providers’ knowledge and practices prior to or during AL and quinine implementation is scanty. The current study evaluated providers’ knowledge and practices of treatment policy and dosing regimens with AL and quinine in the public, private and not-for-profit drug outlets. Methods A cross-sectional survey using three-stage sampling of 288 (126 public, 96 private and 66 not-for-profits providers in drug outlets was conducted in western Kenya in two Plasmodium falciparum-endemic regions with varying malarial risk. Information on provider in-service training, knowledge (qualification, treatment policy, dosing regimen, recently banned anti-malarials and on practices (request for written prescription, prescription of AL, selling partial packs and advice given to patients after prescription, was collected. Results Only 15.6% of providers in private outlets had received any in-service training on AL use. All (100% in public and majority (98.4% in not-for-profit outlets mentioned AL as first line-treatment drug. Quinine was mentioned as second-line drug by 47.9% in private outlets. A total of 92.0% in public, 57.3% in private and 78.8% in not-for-profit outlets stated correct AL dose for adults. A total of 85.7% of providers in public, 30.2% in private and 41.0% in not-for-profit outlets were aware that SP recommendations changed from treatment for mild malaria to IPTp in high risk areas. In-service training influenced treatment regimen for uncomplicated malaria (P = 0.039 and P = 0.039 and severe malaria (P P = 0.002 in children and adults, respectively. Most (82.3% of private outlets sell partial packs of AL while 72.4% do not request for written prescription for AL. In-service training influenced request for written prescription (P = 0.001, AL prescription (P P  Conclusion Public-sector providers have higher knowledge on treatment policy and dosing regimen on recommended anti-malarials. Changes in treatment guidelines should be accompanied by subsequent implementation activities involving all sector players in unbiased strategies.

  19. Anthropophilic biting behaviour of Anopheles (Kerteszia neivai Howard, Dyar & Knab associated with Fishermen’s activities in a malaria-endemic area in the Colombian Pacific

    Directory of Open Access Journals (Sweden)

    Jesus Eduardo Escovar

    2013-12-01

    Full Text Available On the southwest Pacific Coast of Colombia, a field study was initiated to determine the human-vector association between Anopheles (Kerteszia neivai and fishermen, including their nearby houses. Mosquitoes were collected over 24-h periods from mangrove swamps, marshlands and fishing vessels in three locations, as well as in and around the houses of fishermen. A total of 6,382 mosquitoes were collected. An. neivai was most abundant in mangroves and fishing canoes (90.8%, while Anopheles albimanus was found indoors (82% and outdoors (73%. One An. neivai and one An. albimanus collected during fishing activities in canoes were positive for Plasmodium vivax , whereas one female An. neivai collected in a mangrove was positive for P. vivax . In the mangroves and fishing canoes, An. neivai demonstrated biting activity throughout the day, peaking between 06:00 pm-07:00 pm and there were two minor peaks at dusk and dawn. These peaks coincided with fishing activities in the marshlands and mangroves, a situation that places the fishermen at risk of contracting malaria when they are performing their daily activities. It is recommended that protective measures be implemented to reduce the risk that fishermen will contract malaria.

  20. Genetic polymorphisms in the glutamate-rich protein of Plasmodium falciparum field isolates from a malaria-endemic area of Brazil

    DEFF Research Database (Denmark)

    Pratt-Riccio, Lilian Rose; Perce-da-Silva, Daiana de Souza; Lima-Junior, Josué da Costa;

    2013-01-01

    The genetic diversity displayed by Plasmodium falciparum, the most deadly Plasmodium species, is a significant obstacle for effective malaria vaccine development. In this study, we identified genetic polymorphisms in P. falciparum glutamate-rich protein (GLURP), which is currently being tested...... in clinical trials as a malaria vaccine candidate, from isolates found circulating in the Brazilian Amazon at variable transmission levels. The study was performed using samples collected in 1993 and 2008 from rural villages situated near Porto Velho, in the state of Rondônia. DNA was extracted from 126 P....... falciparum-positive thick blood smears using the phenol-chloroform method and subjected to a nested polymerase chain reaction protocol with specific primers against two immunodominant regions of GLURP, R0 and R2. Only one R0 fragment and four variants of the R2 fragment were detected. No differences were...

  1. A molecular survey of febrile cases in malaria-endemic areas along China-Myanmar border in Yunnan province, People’s Republic of China

    Directory of Open Access Journals (Sweden)

    Zhou Xia

    2014-01-01

    Full Text Available Background: Imported malaria is a major threat to neighboring malaria-eliminating countries such as P.R. China and is difficult to monitor. A molecular survey of febrile patients with a history of traveling abroad along the Myanmar-China endemic border areas from January 2008 to August 2012 was carried out. The rates of infection with species of Plasmodium and compliance of microscopy diagnosis with nested PCR (Polymerase Chain Reaction results were calculated.\tResults:\tPlasmodium genus-specific nested PCR confirmed that 384 cases were positive. Further species-specific nested PCR showed that the rate of Plasmodium vivax infection was 55% (213/384; that of Plasmodium falciparum was 21% (81/384 and 17% (67/384 of cases were co-infection cases of P. vivax and P. falciparum; the remaining 6% (23/384 of cases were caused by other species, such as Plasmodium ovale, P. malaria, P. knowlesi or mixed infections of Plasmodium. In total there was 13% (50/384 false microscopy diagnosis including 6% (22/384 error in species diagnosis and 7% (28/384 undiagnosed cases in co-infection or low parasitemia malaria cases.\tConclusions: This study indicates that there are considerable numbers of malaria cases in the China-Myanmar endemic border areas that remain undiagnosed or misdiagnosed by microscopy, especially in low-level and/or complex co-infection cases. It is urgent to develop accurate rapid diagnostic tests and apply PCR confirmation for efficient surveillance.

  2. Early home-based recognition of anaemia via general danger signs, in young children, in a malaria endemic community in north-east Tanzania

    DEFF Research Database (Denmark)

    Ringsted, Frank M; Bygbjerg, Ib C; Samuelsen, Helle

    2006-01-01

    facility use. RESULTS: General danger signs, reported by mothers, e.g. infant unable to breast-feed or sit, too weak to be carried on back - besides of more alarming signs such as sleeping all time, loosing consciousness or convulsing - were well associated with actual or evolving moderate to severe...

  3. Common variation in the ABO glycosyltransferase is associated with susceptibility to severe Plasmodium falciparum malaria

    OpenAIRE

    Fry, Andrew E.; Griffiths, Michael J.; Auburn, Sarah; Diakite, Mahamadou; Forton, Julian T.; Green, Angela; Richardson, Anna; Wilson, Jonathan; Jallow, Muminatou; Sisay-Joof, Fatou; Pinder, Margaret; Peshu, Norbert; Williams, Thomas N.; Marsh, Kevin; Malcolm E Molyneux

    2007-01-01

    There is growing epidemiological and molecular evidence that ABO blood group affects host susceptibility to severe Plasmodium falciparum infection. The high frequency of common ABO alleles means that even modest differences in susceptibility could have a significant impact on the health of people living in malaria endemic regions. We performed an association study, the first to utilize key molecular genetic variation underlying the ABO system, genotyping >9000 individuals across 3 African pop...

  4. Social identity contingencies: how diversity cues signal threat or safety for African Americans in mainstream institutions.

    Science.gov (United States)

    Purdie-Vaughns, Valerie; Steele, Claude M; Davies, Paul G; Ditlmann, Ruth; Crosby, Jennifer Randall

    2008-04-01

    This research demonstrates that people at risk of devaluation based on group membership are attuned to cues that signal social identity contingencies--judgments, stereotypes, opportunities, restrictions, and treatments that are tied to one's social identity in a given setting. In 3 experiments, African American professionals were attuned to minority representation and diversity philosophy cues when they were presented as a part of workplace settings. Low minority representation cues coupled with colorblindness (as opposed to valuing diversity) led African American professionals to perceive threatening identity contingencies and to distrust the setting (Experiment 1). The authors then verified that the mechanism mediating the effect of setting cues on trust was identity contingent evaluations (Experiments 2 & 3). The power of social identity contingencies as they relate to underrepresented groups in mainstream institutions is discussed.

  5. Social motility in african trypanosomes.

    Directory of Open Access Journals (Sweden)

    Michael Oberholzer

    2010-01-01

    Full Text Available African trypanosomes are devastating human and animal pathogens that cause significant human mortality and limit economic development in sub-Saharan Africa. Studies of trypanosome biology generally consider these protozoan parasites as individual cells in suspension cultures or in animal models of infection. Here we report that the procyclic form of the African trypanosome Trypanosoma brucei engages in social behavior when cultivated on semisolid agarose surfaces. This behavior is characterized by trypanosomes assembling into multicellular communities that engage in polarized migrations across the agarose surface and cooperate to divert their movements in response to external signals. These cooperative movements are flagellum-mediated, since they do not occur in trypanin knockdown parasites that lack normal flagellum motility. We term this behavior social motility based on features shared with social motility and other types of surface-induced social behavior in bacteria. Social motility represents a novel and unexpected aspect of trypanosome biology and offers new paradigms for considering host-parasite interactions.

  6. Evolving African attitudes to European education: Resistance, pervert effects of the single system paradox, and the ubuntu framework for renewal

    Science.gov (United States)

    Assié-Lumumba, N'Dri Thérèse

    2016-02-01

    This paper is a reflection that critically examines the dynamics of education and the struggle by African people for freedom, control of the mind, self-definition and the right to determine their own destiny from the start of colonial rule to the present. The primary methodological approach is historical structuralism, which stipulates that social reality and facts are determined and created by social agents within structural and historical contingencies. It addresses some of the most powerful challenges and contradictions that explain the ineffectiveness of numerous post-independence reforms, and presents the arguments for relevance and use of African languages, for instance, that have been made since the 1960s. The first section of the paper deals with the colonial imperatives for setting new education systems in the colonised societies of Africa and the initial attitudes of the Africans towards colonial education. The second section critically examines the evolving meanings of Western education in Europeanising African societies, the articulation of their rationale and the mechanism for resistance. It analyses the turning point when Africans began to embrace European education and demand it in the colonial and post-independence era. The third section addresses the roots of the inadequacies of received post-colonial education and the imperative of deconstruction and re-appropriation of African education using an ubuntu framework for an African renewal.

  7. Sets in Coq, Coq in Sets

    Directory of Open Access Journals (Sweden)

    Bruno Barras

    2010-01-01

    Full Text Available This work is about formalizing models of various type theories of the Calculus of Constructions family. Here we focus on set theoretical models. The long-term goal is to build a formal set theoretical model of the Calculus of Inductive Constructions, so we can be sure that Coq is consistent with the language used by most mathematicians.One aspect of this work is to axiomatize several set theories: ZF possibly with inaccessible cardinals, and HF, the theory of hereditarily finite sets. On top of these theories we have developped a piece of the usual set theoretical construction of functions, ordinals and fixpoint theory. We then proved sound several models of the Calculus of Constructions, its extension with an infinite hierarchy of universes, and its extension with the inductive type of natural numbers where recursion follows the type-based termination approach.The other aspect is to try and discharge (most of these assumptions. The goal here is rather to compare the theoretical strengths of all these formalisms. As already noticed by Werner, the replacement axiom of ZF in its general form seems to require a type-theoretical axiom of choice (TTAC.

  8. Research report on South African university mental skills norms for six sports

    OpenAIRE

    Kruger, Ankebe; Edwards, David J.; Edwards, Stephen D.

    2013-01-01

    The Bull’s Mental Skills Questionnaire, developed in the United Kingdom, is being more extensively used across various South African sport and exercise settings. It comprises seven mental skill subscales: imagery, mental preparation (goal-setting), self-confidence, anxiety and worry management, concentration, relaxation and motivation. Individual subscale scores are calculated and combined into a total score. Previous research has recommended establishment of local sport code norms. The aim o...

  9. Sets resilient to erosion

    CERN Document Server

    Pegden, Wesley

    2011-01-01

    The erosion of a set in Euclidean space by a radius r>0 is the subset of X consisting of points at distance >/-r from the complement of X. A set is resilient to erosion if it is similar to its erosion by some positive radius. We give a somewhat surprising characterization of resilient sets, consisting in one part of simple geometric constraints on convex resilient sets, and, in another, a correspondence between nonconvex resilient sets and scale-invariant (e.g., 'exact fractal') sets.

  10. Invariant sets for Windows

    CERN Document Server

    Morozov, Albert D; Dragunov, Timothy N; Malysheva, Olga V

    1999-01-01

    This book deals with the visualization and exploration of invariant sets (fractals, strange attractors, resonance structures, patterns etc.) for various kinds of nonlinear dynamical systems. The authors have created a special Windows 95 application called WInSet, which allows one to visualize the invariant sets. A WInSet installation disk is enclosed with the book.The book consists of two parts. Part I contains a description of WInSet and a list of the built-in invariant sets which can be plotted using the program. This part is intended for a wide audience with interests ranging from dynamical

  11. Control and surveillance of human African trypanosomiasis.

    Science.gov (United States)

    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.

  12. African Easterly Jet: Structure and Maintenance

    Science.gov (United States)

    Wu, Man-Li C.; Reale, Oreste; Schubert, Siegfried D.; Suarez, Max J.; Koster, Randy D.; Pegion, Philip J.

    2009-01-01

    This article investigates the African Easterly Jet (AEJ), its structure and the forcings contributing to its maintenance, critically revisiting previous work which attributed the maintenance of the jet to soil moisture gradients over tropical Africa. A state-of-the-art global model in a high-end computer framework is used to produce a 3-member 73-year ensemble run forced by observed SST to represent the Control run. The AEJ as produced by the Control is compared with the representation of the AEJ in the European Center for Medium Range Forecast Reanalyses (ERA-40) and other observational data sets and found very realistic. Five Experiments are then performed, each represented by sets of 3-member 22 year long (1980-2001) ensemble runs. The goal of the Experiments is to investigate the role of meridional soil moisture gradients, different land surface properties and orography. Unlike previous studies, which have suppressed soil moisture gradients within a highly idealized framework (i.e., the so-called bucket model), terrestrial evaporation control is here achieved with a highly sophisticated landsurface treatment and with an extensively tested and complex methodology. The results show that the AEJ is suppressed by a combination of absence of meridional evaporation gradients over Africa and constant vegetation, even if the individual forcings taken separately do not lead to the AEJ disappearance, but only its modification. Moreover, the suppression of orography also leads to a different circulation in which there is no AEJ. This work suggests that it is not just soil moisture gradients, but a unique combination of geographical features present only in northern tropical Africa, which causes and maintains the jet.

  13. Towards an Africological Pedagogical Approach to African Civilization.

    Science.gov (United States)

    Okafor, Victor Oguejiofor

    1996-01-01

    Presents a case study of controversies related to African studies and makes the case for an Africological pedagogical approach to African Civilization. The title "African Civilization" reflects the African place in the whole of world civilization even though that place is itself a multiple entity. (SLD)

  14. School Counseling for African American Adolescents: The Alfred Adler Approach

    Science.gov (United States)

    Sapp, Marty

    2010-01-01

    This article discusses how Adlerian counseling can be used as a form of school counseling for African American adolescents. Moreover, school counseling for African American adolescents is discussed within the context of African American culture. Due to the strength-based nature of Adlerian approach, it can capitalize on African American…

  15. Molecular phylogenetics reveal multiple tertiary vicariance origins of the African rain forest trees

    Directory of Open Access Journals (Sweden)

    Sosef Marc SM

    2008-12-01

    , enhancing the levels of endemicity. These results provide an explanation for present day distribution patterns and origins of endemicity for African rain forest trees. Moreover, given the pre-Pleistocene origins of all the studied endemic East African genera and species, these results also offer important insights for setting conservation priorities in these highly diversified but threatened ecosystems.

  16. Academic attainment and the high school science experiences among high-achieving African American males

    Science.gov (United States)

    Trice, Rodney Nathaniel

    This study examines the educational experiences of high achieving African American males. More specifically, it analyzes the influences on their successful navigation through high school science. Through a series of interviews, observations, questionnaires, science portfolios, and review of existing data the researcher attempted to obtain a deeper understanding of high achieving African American males and their limitations to academic attainment and high school science experiences. The investigation is limited to ten high achieving African American male science students at Woodcrest High School. Woodcrest is situated at the cross section of a suburban and rural community located in the southeastern section of the United States. Although this investigation involves African American males, all of whom are successful in school, its findings should not be generalized to this nor any other group of students. The research question that guided this study is: What are the limitations to academic attainment and the high school science experiences of high achieving African American males? The student participants expose how suspension and expulsion, special education placement, academic tracking, science instruction, and teacher expectation influence academic achievement. The role parents play, student self-concept, peer relationships, and student learning styles are also analyzed. The anthology of data rendered three overarching themes: (1) unequal access to education, (2) maintenance of unfair educational structures, and (3) authentic characterizations of African American males. Often the policies and practices set in place by school officials aid in creating hurdles to academic achievement. These policies and practices are often formed without meaningful consideration of the unintended consequences that may affect different student populations, particularly the most vulnerable. The findings from this study expose that high achieving African American males face major

  17. Value Set Authority Center

    Data.gov (United States)

    U.S. Department of Health & Human Services — The VSAC provides downloadable access to all official versions of vocabulary value sets contained in the 2014 Clinical Quality Measures (CQMs). Each value set...

  18. Altimeter Setting Indicator

    Data.gov (United States)

    Department of Transportation — The Altimeter Setting Indicator (ASI) is an aneroid system used at airports to provide an altimeter setting for aircraft altimeters. This indicator may be an analog...

  19. Landslides, Set 2

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This set expands the topics included in Set 1 and includes (in addition to landslides) rockfalls, rock avalanches, mud flows, debris flows, slumps, creep, and...

  20. Renal impairment in a rural African antiretroviral programme

    Directory of Open Access Journals (Sweden)

    Lessells Richard J

    2009-08-01

    Full Text Available Abstract Background There is little knowledge regarding the prevalence and nature of renal impairment in African populations initiating antiretroviral treatment, nor evidence to inform the most cost effective methods of screening for renal impairment. With the increasing availability of the potentially nephrotixic drug, tenofovir, such information is important for the planning of antiretroviral programmes Methods (i Retrospective review of the prevalence and risk factors for impaired renal function in 2189 individuals initiating antiretroviral treatment in a rural African setting between 2004 and 2007 (ii A prospective study of 149 consecutive patients initiating antiretrovirals to assess the utility of urine analysis for the detection of impaired renal function. Severe renal and moderately impaired renal function were defined as an estimated GFR of ≤ 30 mls/min/1.73 m2 and 30–60 mls/min/1.73 m2 respectively. Logistic regression was used to determine odds ratio (OR of significantly impaired renal function (combining severe and moderate impairment. Co-variates for analysis were age, sex and CD4 count at initiation. Results (i There was a low prevalence of severe renal impairment (29/2189, 1.3% 95% C.I. 0.8–1.8 whereas moderate renal impairment was more frequent (287/2189, 13.1% 95% C.I. 11.6–14.5 with many patients having advanced immunosuppression at treatment initiation (median CD4 120 cells/μl. In multivariable logistic regression age over 40 (aOR 4.65, 95% C.I. 3.54–6.1, male gender (aOR 1.89, 95% C.I. 1.39–2.56 and CD4 Conclusion In this rural African setting, significant renal impairment is uncommon in patients initiating antiretrovirals. Urine analysis alone may be inadequate for identification of those with impaired renal function where resources for biochemistry are limited.

  1. A brief report on WAIS-R normative data collection in Mayo's Older African Americans Normative Studies.

    Science.gov (United States)

    Lucas, John A; Ivnik, Robert J; Smith, Glenn E; Ferman, Tanis J; Willis, Floyd B; Petersen, Ronald C; Graff-Radford, Neill R

    2005-06-01

    Historically, neuropsychological measures such as the Wechsler Adult Intelligence Scale-Revised (WAIS-R) have yielded unacceptably high rates of misdiagnosis of impairment among cognitively normal African Americans, primarily due to poor test specificity and inadequate representation of ethnic minorities in the normative sample. In this report, we briefly review these issues and describe efforts by investigators in Mayo's Older African Americans Normative Studies (MOAANS) to develop more appropriate norms for African American elders on the WAIS-R. During MOAANS data collection, the third edition of the WAIS (WAIS-III) was introduced with updated representation of ethnic minorities in the normative database. More recently, specific demographic corrections for African Americans have been derived for WAIS-III subtest scores and indices. As such, WAIS-R normative estimates are not presented here. Interested readers who wish to obtain a full set of MOAANS WAIS-R norms, however, are invited to contact the authors for these data.

  2. A South African Municipality Mapping the Way Forward for Social Inclusion Through Universal Design.

    Science.gov (United States)

    Aalbers, Michelle

    2016-01-01

    Since becoming a democracy, South African legislation has changed. The South African Constitution and legislation governing the structures and mandate of the different spheres of government aim towards municipalities needing to become more developmental in the way it serves the community with a specific focus on the poor and vulnerable. It sets ideals to overcome the inheritance of the past. However, how to do this is sometimes still unclear. This paper is a case study illustrating how Stellenbosch Municipality overcame obstacles of perceived legislative restrictions, silo operations and antiquated thinking, working towards social inclusion for all its citizens. In moving away from disability accessibility and embracing universal access as a way in which to deliver basic services, Stellenbosch discovered the beginning of the process of overcoming the negative legacy of the past. Understanding the Universal Design principles and approach illustrated how South African municipalities can promote the concept of our rainbow nation as envisioned in the Constitution.

  3. Working with African American clients: considering the "homeplace" in marriage and family therapy practices.

    Science.gov (United States)

    Burton, Linda M; Winn, Donna-Marie; Stevenson, Howard; Clark, Sherri Lawson

    2004-10-01

    In this article, we discuss perspectives on the "homeplace" that are important to consider in marriage and family therapy involving African American clients. The homeplace comprises individual and family processes that are anchored in a defined physical space that elicits feelings of empowerment, rootedness, ownership, safety, and renewal. Critical elements of the homeplace include social relationships that shape individuals' and families' sense of social and cultural identity. We draw on our ethnographic and clinical research with African American families in urban and rural settings to describe typical schisms between therapists and African American clients when communicating about the homeplace. We also explore the impact of homeplace disruptions on experiences of "yearning." Recommendations for integrating a homeplace perspective into therapy practices are provided.

  4. Vague集%Vague Set

    Institute of Scientific and Technical Information of China (English)

    李凡; 徐章艳; 饶勇

    2000-01-01

    In this paper,we first introduce vague set,then give the definition of intersection and union based on vague set with t-norm and t-conorm of the point value. Thus we gain some properties of intersection and union of vague set.

  5. Paired fuzzy sets

    DEFF Research Database (Denmark)

    Rodríguez, J. Tinguaro; Franco de los Ríos, Camilo; Gómez, Daniel

    2015-01-01

    In this paper we want to stress the relevance of paired fuzzy sets, as already proposed in previous works of the authors, as a family of fuzzy sets that offers a unifying view for different models based upon the opposition of two fuzzy sets, simply allowing the existence of different types...

  6. Axiomatic set theory

    CERN Document Server

    Suppes, Patrick

    1972-01-01

    This clear and well-developed approach to axiomatic set theory is geared toward upper-level undergraduates and graduate students. It examines the basic paradoxes and history of set theory and advanced topics such as relations and functions, equipollence, finite sets and cardinal numbers, rational and real numbers, and other subjects. 1960 edition.

  7. Rough Neutrosophic Sets

    OpenAIRE

    Said Broumi; Florentin Smarandache; Mamoni Dhar

    2013-01-01

     Both neutrosophic sets theory and rough sets theory are emerging as powerful tool for managing uncertainty, indeterminate, incomplete and imprecise information. In this paper we develop an hybrid structure called rough neutrosophic sets and studied their properties. 

  8. Sets, Planets, and Comets

    Science.gov (United States)

    Baker, Mark; Beltran, Jane; Buell, Jason; Conrey, Brian; Davis, Tom; Donaldson, Brianna; Detorre-Ozeki, Jeanne; Dibble, Leila; Freeman, Tom; Hammie, Robert; Montgomery, Julie; Pickford, Avery; Wong, Justine

    2013-01-01

    Sets in the game "Set" are lines in a certain four-dimensional space. Here we introduce planes into the game, leading to interesting mathematical questions, some of which we solve, and to a wonderful variation on the game "Set," in which every tableau of nine cards must contain at least one configuration for a player to pick up.

  9. The African concept of caring for life

    Directory of Open Access Journals (Sweden)

    Maake Masango

    2005-10-01

    Full Text Available This article analyses the village concept of caring among African people. The old pattern of caring was based on the concept of ubuntu (humanity which respects people, because they are created in the imago Dei. Then the article compares the western concept of caring, which is based on individualism and people's privacy. Finally, economy, globalisation and this western concept are analysed. The impact of the above concepts affects Africans in urban areas, who are caught up in the two worlds, namely the African and western worlds.

  10. African traditional fermented foods and probiotics.

    Science.gov (United States)

    Anukam, Kingsley C; Reid, Gregor

    2009-12-01

    African traditional fermented foods remain the main source of nutrition for many rural communities in Africa. Although lactic acid bacteria are integral to many of these foods, little is known about the specific health benefits they confer or the properties of their strains. This mini-review explores the history of some African fermented foods and their microbial content and properties within the context of probiotic characteristics. Given the recent upsurge in probiotic research, recommendations are made on studies that could be performed with African fermented foods and their strains, with a view to improving the health of people in sub-Saharan Africa.

  11. 21st Century South African Science Fiction

    Directory of Open Access Journals (Sweden)

    CARAIVAN LUIZA

    2014-12-01

    Full Text Available The paper analyses some aspects of South African science fiction, starting with its beginnings in the 1920s and focusing on some 21st century writings. Thus Lauren Beukes’ novels Moxyland (2008 and Zoo City (2010 are taken into consideration in order to present new trends in South African literature and the way science fiction has been marked by Apartheid. The second South African science fiction writer whose writings are examined is Henrietta Rose-Innes (with her novel Nineveh, published in 2011 as this consolidates women's presence in the SF world.

  12. Salient Themes as Voices in African Poetry

    Directory of Open Access Journals (Sweden)

    C.B. Ogunyemi

    2011-11-01

    Full Text Available The paper examines the various voices in African poetry. African poets use their themes as echoes to salvage various inherences found in the decaying political, economic and social landscape. The paper argues textually the cultural ethos and the contemporary post-independence disillusionment on the African psyche as a result of colonilization. Using the meta-critical approach combined with realism, within sociological approach, the research calls for a concerted effort to stimulate originality and harness the benefits of globalization for the development of humanity in Africa.

  13. Playing spades: The rich resources of African American young men

    Science.gov (United States)

    Schademan, Alfred R.

    Research has shown that African American young men as a demographic group occupy the lowest levels of academic performance in both science and mathematics. In spite of this educational problem, little research has been conducted on the knowledge related to these disciplines that these young men learn and develop through everyday cultural practices. Such knowledge is needed in order to: (1) combat the deficit views that many teachers currently hold of African American young men, and (2) inform teachers interested in implementing pedagogies in their classrooms that draw upon the knowledge of African American young men. To add to our knowledge in this field, this study examines the resources that African American young men learn, use, and develop through a card game called Spades. Specifically, the study identifies and analyzes the models and model-based reasoning that the players use in order to win games. The study focuses upon modeling as it is central to both science and mathematics. To imbed player models and reasoning in context, the study employs a syncretic theoretical framework that examines how Spades has changed over time and how it is currently played in a high school setting. The qualitative study uses ethnographic methods combined with play-by-play analyses to reconstruct games and examine player strategies and reasoning that guide their decisions. The study found that the players operate from a number of different models while playing the game. Specifically, the players consider multiple variables and factors, as well as their mathematical relationships, to predict future occurrences and then play cards accordingly. Further, the players use a number of resources to win games including changing the game to maintain a competitive edge, counting cards, selectively memorizing cards played, assessing risk, bluffing, reading partners as well as opponents, reneging, estimating probabilities, and predicting outcomes. The player models and resources bear

  14. Sets avoiding integral distances

    CERN Document Server

    Kurz, Sascha

    2012-01-01

    We study open point sets in Euclidean spaces $\\mathbb{R}^d$ without a pair of points an integral distance apart. By a result of Furstenberg, Katznelson, and Weiss such sets must be of Lebesgue upper density zero. We are interested in how large such sets can be in $d$-dimensional volume. We determine the lower and upper bounds for the volumes of the sets in terms of the number of their connected components and dimension, and also give some exact values. Our problem can be viewed as a kind of inverse to known problems on sets with pairwise rational or integral distances.

  15. Elements of set theory

    CERN Document Server

    Enderton, Herbert B

    1977-01-01

    This is an introductory undergraduate textbook in set theory. In mathematics these days, essentially everything is a set. Some knowledge of set theory is necessary part of the background everyone needs for further study of mathematics. It is also possible to study set theory for its own interest--it is a subject with intruiging results anout simple objects. This book starts with material that nobody can do without. There is no end to what can be learned of set theory, but here is a beginning.

  16. Generalization Rough Set Theory

    Institute of Scientific and Technical Information of China (English)

    XIAO Di; ZHANG Jun-feng; HU Shou-song

    2008-01-01

    In order to avoid the discretization in the classical rough set theory, a generlization rough set theory is proposed.At first, the degree of general importance of an attribute and attribute subsets are presented.Then, depending on the degree of general importance of attribute, the space distance can be measured with weighted method.At last, a generalization rough set theory based on the general near neighborhood relation is proposed.The proposed theory partitions the universe into the tolerant modules, and forms lower approximation and upper approximation of the set under general near neighborhood relationship, which avoids the discretization in Pawlak's rough set theory.

  17. Palaearctic-African Bird Migration

    DEFF Research Database (Denmark)

    Iwajomo, Soladoye Babatola

    investigated the relationship between the timing of autumn migration and climatic variations at local and spatial scale. The first three papers focused on speciesspecific analysis. In them I described the age-specific patterns in biometrics, phenology and migration strategies as well as trends...... of birds from Europe to Africa and opens up the possibility of studying intra-African migration. I have used long-term, standardized autumn ringing data from southeast Sweden to investigate patterns in biometrics, phenology and population trends as inferred from annual trapping totals. In addition, I...... also molt their flight feathers at this location and intraspecific interactions are non-aggressive. The second manuscript investigates whether variations in the timing of migration of wader species at a stopover site in southeast Sweden is influence by local or regional climatic variables...

  18. African Biochemists Plan More Collaboration

    Directory of Open Access Journals (Sweden)

    Peter N. Campbell

    2000-01-01

    Full Text Available The Federation of European Biochemical Societies (FEBS was the first regional organisation of biochemists, holding its first congress in London in 1964. There followed the creation of the Pan American Association of Biochemical Societies (PAABS and then the Federation of Asian and Oceanian Biochemists (FAOB. An obvious development was the formation of a similar organisation to take care of Africa, but this proved impossible so long as apartheid survived in South Africa. With the removal of the latter, the way was clear for the foundation of the Federation of African Societies of Biochemistry and Molecular Biology (FASBMB. The first congress of the new federation was held in Nairobi in September 1996 under the Presidency of Prof. Dominic Makawiti of Nairobi University. Among the 300 participants were representatives from 19 countries in Africa. The second congress was held at Potchefstroom in South Africa in 1998 and the third was just held in Cairo.

  19. African swine fever : transboundary diseases

    Directory of Open Access Journals (Sweden)

    M-L. Penrith

    2009-09-01

    Full Text Available African swine fever (ASF is a devastating haemorrhagic fever of pigs that causes up to 100 % mortality, for which there is no vaccine. It is caused by a unique DNA virus that is maintained in an ancient cycle between warthogs and argasid ticks, making it the only known DNA arbovirus. ASF has a high potential for transboundary spread, and has twice been transported from Africa to other continents - Europe and subsequently the Caribbean and Brazil (1957, 1959 and the Caucasus (2007. It is also a devastating constraint for pig production in Africa. Research at Onderstepoort Veterinary Institute has made and is making important contributions to knowledge of this disease, focusing on the cycle in warthogs and tampans and transmission from that cycle to domestic pigs, resistance to its effects in domestic pigs, and the molecular genetic characterisation and epidemiology of the virus.

  20. Medical Advocacy and Supportive Environments for African-Americans Following Abnormal Mammograms.

    Science.gov (United States)

    Molina, Yamile; Hempstead, Bridgette H; Thompson-Dodd, Jacci; Weatherby, Shauna Rae; Dunbar, Claire; Hohl, Sarah D; Malen, Rachel C; Ceballos, Rachel M

    2015-09-01

    African-American women experience disproportionately adverse outcomes relative to non-Latina White women after an abnormal mammogram result. Research has suggested medical advocacy and staff support may improve outcomes among this population. The purpose of the study was to understand reasons African-American women believe medical advocacy to be important and examine if and how staff can encourage and be supportive of medical advocacy. A convenience-based sample of 30-74-year-old women who self-identified as African-American/Black/of African descent and who had received an abnormal mammogram result was recruited from community-based organizations, mobile mammography services, and the local department of health. This qualitative study included semi-structured interviews. Patients perceived medical advocacy to be particularly important for African-Americans, given mistrust and discrimination present in medical settings and their own familiarity with their bodies and symptoms. Respondents emphasized that staff can encourage medical advocacy through offering information in general in a clear, informative, and empathic style. Cultural competency interventions that train staff how to foster medical advocacy may be a strategy to improve racial disparities following an abnormal mammogram.

  1. Enhancing the African bioethics initiative

    Directory of Open Access Journals (Sweden)

    Ogundiran Temidayo O

    2004-10-01

    Full Text Available Abstract Background Medical ethics has existed since the time of Hippocrates. However, formal training in bioethics did not become established until a few decades ago. Bioethics has gained a strong foothold in health sciences in the developed world, especially in Europe and North America. The situation is quite different in many developing countries. In most African countries, bioethics – as established and practiced today in the west- is either non-existent or is rudimentary. Discussion Though bioethics has come of age in the developed and some developing countries, it is still largely "foreign" to most African countries. In some parts of Africa, some bioethics conferences have been held in the past decade to create research ethics awareness and ensure conformity to international guidelines for research with human participants. This idea has arisen in recognition of the genuine need to develop capacity for reviewing the ethics of research in Africa. It is also a condition required by external sponsors of collaborative research in Africa. The awareness and interest that these conferences have aroused need to be further strengthened and extended beyond research ethics to clinical practice. By and large, bioethics education in schools that train doctors and other health care providers is the hook that anchors both research ethics and clinical ethics. Summary This communication reviews the current situation of bioethics in Africa as it applies to research ethics workshops and proposes that in spite of the present efforts to integrate ethics into biomedical research in Africa, much still needs to be done to accomplish this. A more comprehensive approach to bioethics with an all-inclusive benefit is to incorporate formal ethics education into health training institutions in Africa.

  2. Enhancing the African bioethics initiative

    Science.gov (United States)

    Ogundiran, Temidayo O

    2004-01-01

    Background Medical ethics has existed since the time of Hippocrates. However, formal training in bioethics did not become established until a few decades ago. Bioethics has gained a strong foothold in health sciences in the developed world, especially in Europe and North America. The situation is quite different in many developing countries. In most African countries, bioethics – as established and practiced today in the west- is either non-existent or is rudimentary. Discussion Though bioethics has come of age in the developed and some developing countries, it is still largely "foreign" to most African countries. In some parts of Africa, some bioethics conferences have been held in the past decade to create research ethics awareness and ensure conformity to international guidelines for research with human participants. This idea has arisen in recognition of the genuine need to develop capacity for reviewing the ethics of research in Africa. It is also a condition required by external sponsors of collaborative research in Africa. The awareness and interest that these conferences have aroused need to be further strengthened and extended beyond research ethics to clinical practice. By and large, bioethics education in schools that train doctors and other health care providers is the hook that anchors both research ethics and clinical ethics. Summary This communication reviews the current situation of bioethics in Africa as it applies to research ethics workshops and proposes that in spite of the present efforts to integrate ethics into biomedical research in Africa, much still needs to be done to accomplish this. A more comprehensive approach to bioethics with an all-inclusive benefit is to incorporate formal ethics education into health training institutions in Africa. PMID:15488145

  3. Noncomputable Spectral Sets

    CERN Document Server

    Teutsch, J

    2007-01-01

    It is possible to enumerate all computer programs. In particular, for every partial computable function, there is a shortest program which computes that function. f-MIN is the set of indices for shortest programs. In 1972, Meyer showed that f-MIN is Turing equivalent to 0'', the halting set with halting set oracle. This paper generalizes the notion of shortest programs, and we use various measures from computability theory to describe the complexity of the resulting "spectral sets." We show that under certain Godel numberings, the spectral sets are exactly the canonical sets 0', 0'', 0''', ... up to Turing equivalence. This is probably not true in general, however we show that spectral sets always contain some useful information. We show that immunity, or "thinness" is a useful characteristic for distinguishing between spectral sets. In the final chapter, we construct a set which neither contains nor is disjoint from any infinite arithmetic set, yet it is 0-majorized and contains a natural spectral set. Thus ...

  4. Development of 'Serunding' from African catfish

    DEFF Research Database (Denmark)

    Juhari, Nurul Hanisah Binti; MK, Zainol; MM, Masduki

    This research was conducted to develop serunding from African catfish (Clarias gariepinus). Proximate analysis, physical analysis, ascorbic acid analysis, mineral analysis and sensory evaluation were carried out to determine the nutrient compositions and consumer acceptance towards the products. ...

  5. Chronic lymphocytic leukemia in African Americans.

    Science.gov (United States)

    Coombs, Catherine C; Falchi, Lorenzo; Weinberg, J Brice; Ferrajoli, Alessandra; Lanasa, Mark C

    2012-11-01

    Chronic lymphocytic leukemia (CLL) is the most prevalent leukemia in the United States with almost 4390 attributable deaths per year. Epidemiologic data compiled by the Surveillance, Epidemiology and End Results (SEER) program identifies important differences in incidence and survival for African Americans with CLL. Although the incidence of CLL is lower among African Americans than among Caucasians (4.6 and 6.2 per 100 000 men, respectively), age-adjusted survival is inferior. African American patients with CLL are almost twice as likely to die from a CLL-related complication in the first 5 years after diagnosis as are Caucasian patients with CLL. The biologic basis for these observations is almost entirely unexplored, and a comprehensive clinical analysis of African American patients with CLL is lacking. This is the subject of the present review.

  6. AN ALTERNATIVE VIEW OF SOUTH AFRICAN ARTILLERY

    Directory of Open Access Journals (Sweden)

    A.C. Lillie

    2012-02-01

    Full Text Available It has been said that 'Necessity is the mother of invention' and there can be few countries, if any, where this is more true than in South Africa.In the late 1930's, prior to World War II, the South African Artillery was severely restricted due to its lack of mobility. The inventiveness shown in tackling this probelm is surely not a thing of the past and the possiblity of adapting South African artillery to current South african needs in warfare should not be overlooked. The South African Defence Force is not able to purchase armament in a free and open market place and the costs of developing new artillery are prohibitive in a country of South Africa's size. it will be argued that it is necessary and possible, in the short term, to take what is currently available and adapt this to South Africa's needs.

  7. AFRICAN BUFFALO OPTIMIZATION ico-pdf

    Directory of Open Access Journals (Sweden)

    Julius Beneoluchi Odili

    2016-02-01

    Full Text Available This is an introductory paper to the newly-designed African Buffalo Optimization (ABO algorithm for solving combinatorial and other optimization problems. The algorithm is inspired by the behavior of African buffalos, a species of wild cows known for their extensive migrant lifestyle. This paper presents an overview of major metaheuristic algorithms with the aim of providing a basis for the development of the African Buffalo Optimization algorithm which is a nature-inspired, population-based metaheuristic algorithm. Experimental results obtained from applying the novel ABO to solve a number of benchmark global optimization test functions as well as some symmetric and asymmetric Traveling Salesman’s Problems when compared to the results obtained from using other popular optimization methods show that the African Buffalo Optimization is a worthy addition to the growing number of swarm intelligence optimization techniques.

  8. Economic Key to Sino-African Ties

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Following Chinese President Hu Jintao's visit to Africa's Morocco, Nigeria and Kenya in April, Chinese Premier Wen Jiabao is currently visiting seven African countries-Egypt, Ghana, Republic of Congo, Angola, South Africa, Tanzania and Uganda. Haile-Kiros Gessesse, Ethiopia's Ambassador to China, discussed with Beijing Review reporter Ni Yanshuo the future of the Sino-African relationship. As special envoy for the Forum on China-Africa Cooperation, he also expressed his expectations of the forum summit t...

  9. South African coal statistics 2006. Marketing manual

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-08-15

    The report shows that South African thermal exports increased 5% from 66.6Mt to 69.9Mt in 2005 and that the country was the world's third largest seaborne exporter of thermal coal last year. Covering local coal consumption, South African coal imports, exports, prices and qualities, the report offers a complete statistical review of 2005. The report also includes details on labour, individual collieries, export and rail infrastructure and Black Empowerment (BEE) companies.

  10. Descriptive set theory

    CERN Document Server

    Moschovakis, YN

    1987-01-01

    Now available in paperback, this monograph is a self-contained exposition of the main results and methods of descriptive set theory. It develops all the necessary background material from logic and recursion theory, and treats both classical descriptive set theory and the effective theory developed by logicians.

  11. China Sets Resources Strategy

    Institute of Scientific and Technical Information of China (English)

    LiMin

    2003-01-01

    All mineral mining in China now has a set road to follow, and straying off its path will attract severe penalties. The country's first-round programs for provincial mineral resources exploitation took effect in mid-January, setting output goals and designating mining regions.

  12. African Self-Consciousness and Health-Promoting Behaviors among African American College Students.

    Science.gov (United States)

    Thompson, Shawn N.; Chambers, John W., Jr.

    2000-01-01

    Investigated three models of relationships between African self-consciousness, health consciousness, and health-promoting behaviors among African American college students. The models included the mediator model, moderator model, and independent model. Surveys of 80 students supported the independent model, suggesting that African…

  13. Pan-African Genetic Structure in the African Buffalo (Syncerus caffer): Investigating Intraspecific Divergence

    NARCIS (Netherlands)

    Smitz, N.; Berthouly, C.; Cornelis, D.; Heller, R.; Hooft, van W.F.; Chardonnet, P.; Caron, A.; Prins, H.H.T.; Jansen van Vuuren, B.; Iongh, de H.H.; Michaux, J.

    2013-01-01

    The African buffalo (Syncerus caffer) exhibits extreme morphological variability, which has led to controversies about the validity and taxonomic status of the various recognized subspecies. The present study aims to clarify these by inferring the pan-African spatial distribution of genetic diversit

  14. Changing Fatherhood: An Exploratory Qualitative Study with African and African Caribbean Men in England

    Science.gov (United States)

    Williams, Robert; Hewison, Alistair; Wildman, Stuart; Roskell, Carolyn

    2013-01-01

    This paper presents findings from a qualitative study undertaken with 46 African and African Caribbean men exploring their experiences of fatherhood. Data analysis was informed by Connell's theoretical work on changing gender relations. Findings indicate that fathers' lives were mediated by masculinities, racism, gender, migration and generational…

  15. African Games of Strategy: A Teaching Manual. African Outreach Series, No. 2.

    Science.gov (United States)

    Crane, Louise

    Appreciation of African games has increased in this country; especially board games which have been popularized through commercial versions. African games are invaluable resources for studying subjects requiring mathematical concepts, as well as social studies, history, geography, and languages. This manual presents some of the better known…

  16. African American Pastors' Beliefs and Actions Regarding Childhood Incest in the African American Community

    Science.gov (United States)

    Wells, Tesia Denis

    2012-01-01

    This quantitative study sought to explore African American pastors' beliefs and actions regarding childhood incest in the African American community and their decisions to inform the proper authorities. This exploratory study was developed in order to draw both public and academic attention to the understudied phenomenon of childhood incest…

  17. Crossing Cultures in Marriage: Implications for Counseling African American/African Couples

    Science.gov (United States)

    Durodoye, Beth A.; Coker, Angela D.

    2008-01-01

    A wealth of literature exists regarding intermarriage between White and ethnic minority couples. Noticeably lacking, however, is information considering within-group diversity amongst Black couples. This paper will focus on cultural dynamics that may operate with African American and African couples residing in the United States. Through an…

  18. African swine fever virus serotype-specific proteins are significant protective antigens for African swine fever

    Science.gov (United States)

    African swine fever (ASF) is an emerging disease threat for the swine industry worldwide. No ASF vaccine is available and progress is hindered by lack of knowledge concerning the extent of African swine fever virus (ASFV) strain diversity and the viral antigens conferring type specific protective im...

  19. "Women ... Mourn and Men Carry on": African Women Storying Mourning Practices--A South African Example

    Science.gov (United States)

    Kotze, Elmarie; Els, Lishje; Rajuili-Masilo, Ntsiki

    2012-01-01

    African mourning of loss of lives in South Africa has been shaped by discursive practices of both traditional African cultures and the sociopolitical developments under apartheid and in post-apartheid South Africa. This article reports on changes in mourning practices on the basis of a literature review and uses a collection of examples to…

  20. Southern African Power Pool: Planning and Prospects for Renewable Energy

    Energy Technology Data Exchange (ETDEWEB)

    Miketa, Asami [IRENA, Bonn (Germany); Merven, Bruno [Energy Research Centre, Univ. of Cape Town (South Africa)

    2013-06-25

    With the energy systems of many African countries dominated by fossil-fuel sources that are vulnerable to global price volatility, regional and intra-continental power systems with high shares of renewable energy can provide least-cost option to support continued economic growth and address the continent’s acute energy access problem. Unlocking Africa’s huge renewable energy potential could help to take many people out of poverty, while ensuring the uptake of sustainable technologies for the continent’s long-term development. The report examines the ''renewable scenario'' based on a modelling tool developed by IRENA and tested in cooperation with the South African National Energy Development Institute (SANEDI) and the Southern African Development Community (SADC). Initial results from the System Planning and Test (SPLAT) model show that the share of renewable technologies in Southern Africa could increase from the current 10% to as much as 46% in 2030, with 20% of decentralised capacity coming from renewable sources and nearly 80% of the envisaged capacity additions between 2010 and 2030 being provided by renewable energy technologies. Deployment and export of hydropower from the Democratic Republic of Congo’s Inga hydropower project to the SADC region would significantly reduce average electricity generation costs. Analysis using SPLAT – along with a similar model developed for West Africa – can provide valuable input for regional dialogue and energy projects such as the East and Southern Africa Clean Energy Corridor and the Programme for Infrastructure and Development in Africa (PIDA). IRENA, together with partner organisations, has started plans to set up capacity building and development support for energy system modelling and planning for greater integration of renewables in Africa. IRENA is also completing a similar model and study for East Africa and intends to extend this work to Central and North Africa.

  1. Comparative demography of an at-risk African elephant population.

    Directory of Open Access Journals (Sweden)

    George Wittemyer

    Full Text Available Knowledge of population processes across various ecological and management settings offers important insights for species conservation and life history. In regard to its ecological role, charisma and threats from human impacts, African elephants are of high conservation concern and, as a result, are the focus of numerous studies across various contexts. Here, demographic data from an individually based study of 934 African elephants in Samburu, Kenya were summarized, providing detailed inspection of the population processes experienced by the population over a fourteen year period (including the repercussions of recent increases in illegal killing. These data were compared with those from populations inhabiting a spectrum of xeric to mesic ecosystems with variable human impacts. In relation to variability in climate and human impacts (causing up to 50% of recorded deaths among adults, annual mortality in Samburu fluctuated between 1 and 14% and, unrelatedly, natality between 2 and 14% driving annual population increases and decreases. Survivorship in Samburu was significantly lower than other populations with age-specific data even during periods of low illegal killing by humans, resulting in relatively low life expectancy of males (18.9 years and females (21.8 years. Fecundity (primiparous age and inter-calf interval were similar to those reported in other human impacted or recovering populations, and significantly greater than that of comparable stable populations. This suggests reproductive effort of African savanna elephants increases in relation to increased mortality (and resulting ecological ramifications as predicted by life history theory. Further comparison across populations indicated that elongated inter-calf intervals and older ages of reproductive onset were related to age structure and density, and likely influenced by ecological conditions. This study provides detailed empirical data on elephant population dynamics strongly

  2. The South African nuclear industry

    Energy Technology Data Exchange (ETDEWEB)

    Walmsley, John

    1997-07-01

    The history of the South African nuclear industry is outlined and its present status described. Eskom, the state electric utility, generates 5% of its output from two 921MWe PWRs sited at Koeberg near Capetown. A pebble bed variant of the HTGR is being considered as an option for future nuclear power generation. The Atomic Energy Corporation (AEC) in the past developed a complete front-end fuel cycle capability, conversion of the mining output of ammonium diuranate to UF{sub 6}, enrichment and fuel fabrication facilities, post-irradiation facilities for Koeberg fuel and one of the best low level waste repositories in the world. It also designed a nuclear weapon, six of which were built and later dismantled. Recently, government policy has dictated drastic staff reductions at AEC. The enrichment plant has been dismantled and the PWR fuel fabrication is under threat of closure. Considerable effort is being put into Molecular Laser Isotope Separation, in cooperation with the French organisation COGEMA, as a project with good commercial prospects in the medium term. The Council for Nuclear Safety is the licensing authority for Koeberg, AEC activities and mining and minerals processing. Uranium production in the mines has dropped dramatically with South Africa now being eighth in the world ranking whereas at its peak in 1980 it ranked third. (UK).

  3. Caregiver perceptions of the food marketing environment of African-American 3–11-year-olds: a qualitative study

    Science.gov (United States)

    Baskin, Monica L; Herbey, Ivan; Williams, Ronnie; Ard, Jamy D; Ivankova, Nataliya; Odoms-Young, Angela

    2014-01-01

    Objective To assess caregivers’ perceptions of the extent to which the food marketing environment influences food consumption among African-American children (aged 3–11 years) in order to generate potential strategies to make the marketing environment more favourable to healthier eating. Design Individual semi-structured interviews with caregivers were conducted by trained community leaders to ascertain their awareness of and perceptions about food marketing environments contributing to African-American children’s food consumption. Setting Six predominantly African-American communities in metro Birmingham, Alabama, USA with high proportions of school-age children and lower-income residents. Subjects Caregivers (n 25) were predominantly female (93 %) and either parents/guardians (64 %) or grandparents (28 %) of African-American children aged 3–11 years. Caregiver mean age was 43 years and 46% had lived in their current residence for over 10 years. Results Caregivers reported all aspects of the food marketing matrix as supporting unhealthy eating among African-American youth. Child preference for foods higher in fat and sugar, lower pricing of less healthy foods, limited access to healthier food retailers and targeted advertisements were particularly influential on the food selection, acquisition and consumption of children. Company loyalty, corporate sponsorship of local events and conflicts over parental v. food company responsibility contributed to less consensus about the overall impact (positive or negative) of food companies in African-American communities. Conclusions While caregivers perceived aspects of their food marketing environments as primarily contributing to unhealthy eating among African-American children, framing the demand for changes in the food marketing environments of African-American youth may be particularly challenging. PMID:23830058

  4. Combinatorics of set partitions

    CERN Document Server

    Mansour, Toufik

    2012-01-01

    Focusing on a very active area of mathematical research in the last decade, Combinatorics of Set Partitions presents methods used in the combinatorics of pattern avoidance and pattern enumeration in set partitions. Designed for students and researchers in discrete mathematics, the book is a one-stop reference on the results and research activities of set partitions from 1500 A.D. to today. Each chapter gives historical perspectives and contrasts different approaches, including generating functions, kernel method, block decomposition method, generating tree, and Wilf equivalences. Methods and d

  5. Basic set theory

    CERN Document Server

    Levy, Azriel

    2002-01-01

    An advanced-level treatment of the basics of set theory, this text offers students a firm foundation, stopping just short of the areas employing model-theoretic methods. Geared toward upper-level undergraduate and graduate students, it consists of two parts: the first covers pure set theory, including the basic motions, order and well-foundedness, cardinal numbers, the ordinals, and the axiom of choice and some of it consequences; the second deals with applications and advanced topics such as point set topology, real spaces, Boolean algebras, and infinite combinatorics and large cardinals. An

  6. Set theory essentials

    CERN Document Server

    Milewski, Emil G

    2012-01-01

    REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Set Theory includes elementary logic, sets, relations, functions, denumerable and non-denumerable sets, cardinal numbers, Cantor's theorem, axiom of choice, and order relations.

  7. Energy consumption and economic growth revisited in African countries

    Energy Technology Data Exchange (ETDEWEB)

    Eggoh, Jude C., E-mail: comlanvi-jude.eggoh@univ-orleans.fr [Laboratoire d' Economie d' Orleans (LEO), Universite d' Orleans, Rue de Blois, BP: 6739, 45067 Orleans Cedex 2 (France); Bangake, Chrysost [Laboratoire d' Economie d' Orleans (LEO), Universite d' Orleans, Rue de Blois, BP: 6739, 45067 Orleans Cedex 2 (France); Universite d' Artois and Laboratoire EQUIPPE, Lille 1, FSES, 59655 Villeneuve d' Ascq Cedex (France); Rault, Christophe [Laboratoire d' Economie d' Orleans (LEO), Universite d' Orleans, Rue de Blois, BP: 6739, 45067 Orleans Cedex 2 (France); Toulouse Business School (France)

    2011-11-15

    The aim of this paper is to provide new empirical evidence on the relationship between energy consumption and economic growth for 21 African countries over the period from 1970 to 2006, using recently developed panel cointegration and causality tests. The countries are divided into two groups: net energy importers and net energy exporters. It is found that there exists a long-run equilibrium relationship between energy consumption, real GDP, prices, labor and capital for each group of countries as well as for the whole set of countries. This result is robust to possible cross-country dependence and still holds when allowing for multiple endogenous structural breaks, which can differ among countries. Furthermore, we find that decreasing energy consumption decreases growth and vice versa, and that increasing energy consumption increases growth, and vice versa, and that this applies for both energy exporters and importers. Finally, there is a marked difference in the cointegration relationship when country groups are considered. - Highlights: > We assess the energy consumption and economic growth nexus in 21 African countries. > There exists a long-run relationship between energy consumption and economic growth. > This result is robust to cross-country dependence and for structural breaks. > Our findings finally support the feedback hypothesis of bidirectional causality.

  8. Diversifying the secondary school curriculum: The African experience

    Science.gov (United States)

    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.

  9. Linking adults and immatures of South African marine fishes.

    Science.gov (United States)

    Steinke, Dirk; Connell, Allan D; Hebert, Paul D N

    2016-11-01

    The early life-history stages of fishes are poorly known, impeding acquisition of the identifications needed to monitor larval recruitment and year-class strength. A comprehensive database of COI sequences, linked to authoritatively identified voucher specimens, promises to change this situation, representing a significant advance for fisheries science. Barcode records were obtained from 2526 early larvae and pelagic eggs of fishes collected on the inshore shelf within 5 km of the KwaZulu-Natal coast, about 50 km south of Durban, South Africa. Barcodes were also obtained from 3215 adults, representing 946 South African fish species. Using the COI reference library on BOLD based on adults, 89% of the immature fishes could be identified to a species level; they represented 450 species. Most of the uncertain sequences could be assigned to a genus, family, or order; only 92 specimens (4%) were unassigned. Accumulation curves based on inference of phylogenetic diversity indicate near-completeness of the collecting effort. The entire set of adult and larval fishes included 1006 species, representing 43% of all fish species known from South African waters. However, this total included 189 species not previously recorded from this region. The fact that almost 90% of the immatures gained a species identification demonstrates the power and completeness of the DNA barcode reference library for fishes generated during the 10 years of FishBOL.

  10. Lebesgue Sets Immeasurable Existence

    Directory of Open Access Journals (Sweden)

    Diana Marginean Petrovai

    2012-12-01

    Full Text Available It is well known that the notion of measure and integral were released early enough in close connection with practical problems of measuring of geometric figures. Notion of measure was outlined in the early 20th century through H. Lebesgue’s research, founder of the modern theory of measure and integral. It was developed concurrently a technique of integration of functions. Gradually it was formed a specific area todaycalled the measure and integral theory. Essential contributions to building this theory was made by a large number of mathematicians: C. Carathodory, J. Radon, O. Nikodym, S. Bochner, J. Pettis, P. Halmos and many others. In the following we present several abstract sets, classes of sets. There exists the sets which are not Lebesgue measurable and the sets which are Lebesgue measurable but are not Borel measurable. Hence B ⊂ L ⊂ P(X.

  11. HEDIS Limited Data Set

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Healthcare Effectiveness Data and Information Set (HEDIS) is a tool used by more than 90 percent of Americas health plans to measure performance on important...

  12. Landslides, Set 1

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This set of slides graphically illustrates the potential danger that major earthquakes pose to school structures and to the children and adults who happen to be...

  13. Afriphone Literature as a Prototypical Form of African Literature: Insights from Prototype Theory

    Science.gov (United States)

    Bodomo, Adams

    2016-01-01

    What is the most prototypical form of African literature? Shouldn't we be using African languages to produce African literary texts, shouldn't we produce more Afriphone African literature compared to Europhone African literature or Afro-Europhone literature? This issue underlies the reality that the vast majority of African writers presumably…

  14. Multicriteria identification sets method

    Science.gov (United States)

    Kamenev, G. K.

    2016-11-01

    A multicriteria identification and prediction method for mathematical models of simulation type in the case of several identification criteria (error functions) is proposed. The necessity of the multicriteria formulation arises, for example, when one needs to take into account errors of completely different origins (not reducible to a single characteristic) or when there is no information on the class of noise in the data to be analyzed. An identification sets method is described based on the approximation and visualization of the multidimensional graph of the identification error function and sets of suboptimal parameters. This method allows for additional advantages of the multicriteria approach, namely, the construction and visual analysis of the frontier and the effective identification set (frontier and the Pareto set for identification criteria), various representations of the sets of Pareto effective and subeffective parameter combinations, and the corresponding predictive trajectory tubes. The approximation is based on the deep holes method, which yields metric ɛ-coverings with nearly optimal properties, and on multiphase approximation methods for the Edgeworth-Pareto hull. The visualization relies on the approach of interactive decision maps. With the use of the multicriteria method, multiple-choice solutions of identification and prediction problems can be produced and justified by analyzing the stability of the optimal solution not only with respect to the parameters (robustness with respect to data) but also with respect to the chosen set of identification criteria (robustness with respect to the given collection of functionals).

  15. Set theory and physics

    Energy Technology Data Exchange (ETDEWEB)

    Svozil, K. [Univ. of Technology, Vienna (Austria)

    1995-11-01

    Inasmuch as physical theories are formalizable, set theory provides a framework for theoretical physics. Four speculations about the relevance of set theoretical modeling for physics are presented: the role of transcendental set theory (i) in chaos theory, (ii) for paradoxical decompositions of solid three-dimensional objects, (iii) in the theory of effective computability (Church-Turing thesis) related to the possible {open_quotes}solution of supertasks,{close_quotes} and (iv) for weak solutions. Several approaches to set theory and their advantages and disadvantages for physical applications are discussed: Cantorian {open_quotes}naive{close_quotes} (i.e., nonaxiomatic) set theory, contructivism, and operationalism. In the author`s opinion, an attitude, of {open_quotes}suspended attention{close_quotes} (a term borrowed from psychoanalysis) seems most promising for progress. Physical and set theoretical entities must be operationalized wherever possible. At the same time, physicists should be open to {open_quotes}bizarre{close_quotes} or {open_quotes}mindboggling{close_quotes} new formalisms, which need not be operationalizable or testable at the time of their creation, but which may successfully lead to novel fields of phenomenology and technology.

  16. Priority interventions to reduce HIV transmission in sex work settings in sub-Saharan Africa and delivery of these services

    NARCIS (Netherlands)

    M. Chersich (Matthew); S. Luchters (Stanley); I. Ntaganira (Innocent); A. Gerbase (Antonio); Y-R. Lo (Ying-Ru); F. Scorgie (Fiona); R. Steen (Richard)

    2012-01-01

    textabstractIntroduction: Virtually no African country provides HIV prevention services in sex work settings with an adequate scale and intensity. Uncertainty remains about the optimal set of interventions and mode of delivery. Methods: We systematically reviewed studies reporting interventions for

  17. Restorative Justice and Alternative Dispute Resolution: An Analytical Discourse for African Professionals

    Directory of Open Access Journals (Sweden)

    Omale, Don John O.

    2011-04-01

    Full Text Available The strong advocacy for Restorative Justice and Alternative Dispute Resolution in Africa; and evolving models is a welcomed development for penal reforms and conflict resolution. However, as an African adage says "it is when a tripod is being designed and constructed that the legs should be set straight to forestall cook wares falling". This study drew its strength from a completed Doctor of Philosophy (PhD dissertation initially reviewed with the aim of setting the record straight in the meaning and conceptions of restorative justice and alternative dispute resolution for African practitioners. This is imperative because as the saying goes "words put differently make different meanings, and meaning put differently yield different actions". So if restorative justice and alternative dispute resolution must advance professionally, and as academic disciplines in Africa, practitioners and academics must understand the 'thin' differences inherent in the principles and practice of restorative justice, and alternative dispute resolution.

  18. What about African Americans and High Blood Pressure?

    Science.gov (United States)

    ANSWERS by heart Lifestyle + Risk Reduction High Blood Pressure What About African Americans and High Blood Pressure? The prevalence of high blood pressure in African Americans is among the highest in ...

  19. Men of African Descent and Carcinoma of the Prostate Consortium

    Science.gov (United States)

    The Men of African Descent and Carcinoma of the Prostate Consortium collaborates on epidemiologic studies to address the high burden of prostate cancer and to understand the causes of etiology and outcomes among men of African ancestry.

  20. Coping with the Culturally Unpredictable: An Ethnically Encapsulated Beginning Teacher's Struggle with African-American Students' Ethnic Behavior.

    Science.gov (United States)

    Birrell, James R.

    1994-01-01

    Reports a study that examined how one ethnically encapsulated white beginning teacher responded to African American students' unfamiliar ethnic behavior. Interviews, observations, and journal data indicated that he was underprepared to teach in multicultural settings and noted that ineffective interracial classroom relationships stifled learning…

  1. The African Experience. Volume I: Syllabus Lectures; Volume II: Bibliographic References; Volume IIIA: Introductory Essays; Volume IIIB: Introductory Essays.

    Science.gov (United States)

    Paden, John N.; Soja, Edward W.

    In response to demands for more and better teaching about Africa in American higher education, the US Office of Education requested that the Program of African Studies at Northwestern University generate a set of teaching materials which could be used in introductory undergraduate courses. Included in these volumes, these materials provide…

  2. Formative evaluation for promoting adoption of the DGA, 2005 among African American parents and children in the Lower Mississippi Delta

    Science.gov (United States)

    Formative research was conducted to increase adherence to the healthful food and physical activity patterns set forth in the Dietary Guidelines for Americans, 2005 (DGA, 2005) and thereby reduce weight gain and risk factors for obesity-related chronic diseases in African American parents and their c...

  3. From Brilliant Baby to Child Placed at Risk: The Perilous Path of African American Boys in Early Childhood Education

    Science.gov (United States)

    Rashid, Hakim M.

    2009-01-01

    The preschool and early elementary years play a major role in transforming young African American boys from "brilliant babies" into "children placed at risk". A preschool to prison pipeline now exists that is becoming increasingly apparent. It runs from preschool settings through elementary and middle school, into the high schools from which young…

  4. Do You Hear What I Hear? Overweight Children's Perceptions of Different Physical Activity Settings

    Science.gov (United States)

    Meaney, Karen; Hart, Melanie A.; Griffin, L. Kent

    2011-01-01

    Social-Cognitive Theory (Bandura, 1986, 1999) served as the framework to explore overweight children's perceptions of different physical activity settings. Participants were children (n = 67) enrolled in an after-school and summer program for overweight African-American and Hispanic-American children from low-income families. To gain insight into…

  5. Does the "Negro" "Still" Need Separate Schools? Single-Sex Educational Settings as Critical Race Counterspaces

    Science.gov (United States)

    Terry, Clarence L., Sr.; Flennaugh, Terry K.; Blackmon, Samarah M.; Howard, Tyrone C.

    2014-01-01

    This article explores whether contemporary educators should consider single-sex educational settings as viable interventions in educating African American males. Using qualitative data from a 2-year study of single-sex educational spaces in two Los Angeles County high schools, the authors argue that when all-male spaces effectively function as…

  6. Perinatal outcomes after hypertensive disorders in pregnancy in a low resource setting

    NARCIS (Netherlands)

    Browne, J. L.; Vissers, K. M.; Antwi, E.; Srofenyoh, E. K.; Van der Linden, E. L.; Agyepong, I. A.; Grobbee, D. E.; Klipstein-Grobusch, K.

    2015-01-01

    Objective: The objective of this study was to evaluate perinatal outcomes of pregnancies complicated by hypertensive disorders in pregnancy in an urban sub-Saharan African setting. Methods: A prospective cohort study of 1010 women of less than 17 weeks of gestation was conducted at two antenatal cli

  7. The Relationship between Black Racial Identity and Academic Achievement in Urban Settings

    Science.gov (United States)

    Harper, Brian E.

    2007-01-01

    This article examines the relationship between Black racial identity and academic achievement in urban settings. Using Mary Shelley's Frankenstein (1918) as a comparative framework, the author describes current practices and suggests practical applications of empirical findings for practicing classroom teachers of African American students.…

  8. Lift every voice: voices of African-American lesbian elders.

    Science.gov (United States)

    Woody, Imani

    2015-01-01

    Old lesbians of African descent have experienced racism, heterosexism, homophobia, and ageism. This article explores the topics of aging, ageism, heterosexism, and minority stress among older African-American lesbians. The narratives and subsequent analysis offer significant contributions to the dialogue regarding Black aging lesbians in the aging and lesbian, gay, bisexual, and transgender (LGBT) communities generally and in the African-American and African-American lesbian communities specifically.

  9. Population Genomics of sub-saharan Drosophila melanogaster: African diversity and non-African admixture.

    Directory of Open Access Journals (Sweden)

    John E Pool

    Full Text Available Drosophila melanogaster has played a pivotal role in the development of modern population genetics. However, many basic questions regarding the demographic and adaptive history of this species remain unresolved. We report the genome sequencing of 139 wild-derived strains of D. melanogaster, representing 22 population samples from the sub-Saharan ancestral range of this species, along with one European population. Most genomes were sequenced above 25X depth from haploid embryos. Results indicated a pervasive influence of non-African admixture in many African populations, motivating the development and application of a novel admixture detection method. Admixture proportions varied among populations, with greater admixture in urban locations. Admixture levels also varied across the genome, with localized peaks and valleys suggestive of a non-neutral introgression process. Genomes from the same location differed starkly in ancestry, suggesting that isolation mechanisms may exist within African populations. After removing putatively admixed genomic segments, the greatest genetic diversity was observed in southern Africa (e.g. Zambia, while diversity in other populations was largely consistent with a geographic expansion from this potentially ancestral region. The European population showed different levels of diversity reduction on each chromosome arm, and some African populations displayed chromosome arm-specific diversity reductions. Inversions in the European sample were associated with strong elevations in diversity across chromosome arms. Genomic scans were conducted to identify loci that may represent targets of positive selection within an African population, between African populations, and between European and African populations. A disproportionate number of candidate selective sweep regions were located near genes with varied roles in gene regulation. Outliers for Europe-Africa F(ST were found to be enriched in genomic regions of locally

  10. Factors influencing editorial work within the sectors of the South African editing industry

    OpenAIRE

    Melanie Ann Law

    2014-01-01

    South African editors currently work in a highly diversified industry that comprises a number of different sectors. As a result of this, the role of the editor remains contentious, with varied definitions and demarcations of editorial tasks and skills. This article sets out the argument that editorial work in South Africa is characterised by specific factors which determine the importance (or otherwise) of certain editorial tasks and skills in each sector. To demonstrate this, this article re...

  11. South African Artillery in the Eighties

    Directory of Open Access Journals (Sweden)

    A. C. Lillie

    2012-02-01

    Full Text Available Emerging from the Second World War armed with the then completely adequate 25 pounder and BL 5.5" guns, the South African Field Artillery continued to use the same guns operationally over thirty years later.When the armed forces of South Africa were thrown into a conventional conflict during the Angolan Civil War in 1975, the gunners found their equipment to be woefully inadequate. Soviet made artillery systems in the hands of the Russian-backed forces possessed ranges far in excess of the Second World War vintage South African systems and brought home in a very real way the need for drastic modernisation of the artillery branch of the South African Army.

  12. Similar dissection of sets

    CERN Document Server

    Akiyama, Shigeki; Okazaki, Ryotaro; Steiner, Wolfgang; Thuswaldner, Jörg

    2010-01-01

    In 1994, Martin Gardner stated a set of questions concerning the dissection of a square or an equilateral triangle in three similar parts. Meanwhile, Gardner's questions have been generalized and some of them are already solved. In the present paper, we solve more of his questions and treat them in a much more general context. Let $D\\subset \\mathbb{R}^d$ be a given set and let $f_1,...,f_k$ be injective continuous mappings. Does there exist a set $X$ such that $D = X \\cup f_1(X) \\cup ... \\cup f_k(X)$ is satisfied with a non-overlapping union? We prove that such a set $X$ exists for certain choices of $D$ and $\\{f_1,...,f_k\\}$. The solutions $X$ often turn out to be attractors of iterated function systems with condensation in the sense of Barnsley. Coming back to Gardner's setting, we use our theory to prove that an equilateral triangle can be dissected in three similar copies whose areas have ratio $1:1:a$ for $a \\ge (3+\\sqrt{5})/2$.

  13. What is Ubuntu? Different Interpretations among South Africans of African Descent

    DEFF Research Database (Denmark)

    Gade, Christian B.N.

    2012-01-01

    In this article, I describe and systematize the different answers to the question 'What is Ubuntu?' that I have been able to identify among South Africans of African descent (SAADs). I show that it is possible to distinguish between two clusters of answers. The answers of the first cluster all...... define ubuntu as a moral quality of a person, while the answers of the second cluster all define ubuntu as a phenomenon (for instance a philosophy, an ethic, African humanism, or, a wordview) according to which persons are interconnected. The concept of a person is of central importance to all...

  14. Seeing African Americans as Competent Parents: Implications for Family Counselors

    Science.gov (United States)

    Adkison-Bradley, Carla

    2011-01-01

    One of the primary roles of parents is to guide and socialize children to make meaningful life choices. African American parents, in particular, have the additional tasks of preparing their children to thrive in an environment that has historically been hostile toward African Americans. Yet, many African American parents are often depicted as…

  15. Contrastive Studies - African Languages and English. Specialised Bibliography C9.

    Science.gov (United States)

    British Council, London (England). English-Teaching Information Centre.

    This selective bibliography lists 8 books and 19 journal articles dealing with contrastive studies of African languages and English. The entries range in date from 1953 to 1972 with the majority published since 1965. The books cited are African and British publications and the articles appeared in well-known African, European or American…

  16. 77 FR 5375 - National African American History Month, 2012

    Science.gov (United States)

    2012-02-03

    ... Documents#0;#0; ] Proclamation 8776 of January 31, 2012 National African American History Month, 2012 By the President of the United States of America A Proclamation The story of African Americans is a story of... for the better. During National African American History Month, we celebrate the rich legacy...

  17. Representing African American Women in U.S. History Textbooks

    Science.gov (United States)

    Schocker, Jessica B.; Woyshner, Christine

    2013-01-01

    This article addresses the dearth of African American women in high school U.S. history textbooks. The authors conducted a content analysis of the images in an African American history textbook and found that black women are underrepresented. Women are found in less than 15 percent of the images in the African American history text, while they…

  18. Barriers to Hospice Use among African Americans: A Systematic Review

    Science.gov (United States)

    Washington, Karla T.; Bickel-Swenson, Denise; Stephens, Nathan

    2008-01-01

    The present review was undertaken to explore recent evidence in the professional literature pertaining to use of hospice services by African Americans. The article addresses the research methods that have been used to study African American hospice use, obstacles to African American participation in hospice that have been identified, and…

  19. The African Storybook and Language Teacher Identity in Digital Times

    Science.gov (United States)

    Stranger--Johannessen, Espen; Norton, Bonny

    2017-01-01

    The African Storybook (ASb) is a digital initiative that promotes multilingual literacy for African children by providing openly licenced children's stories in multiple African languages, as well as English, French, and Portuguese. Based on Darvin and Norton's (2015) model of identity and investment, and drawing on the Douglas Fir Group's (2016)…

  20. Some Growth Points in African Child Development Research

    Science.gov (United States)

    Serpell, Robert; Marfo, Kofi

    2014-01-01

    We reflect on ways in which research presented in earlier chapters responds to challenges of generating an African child development field and identify additional issues calling for the field's attention. The chapters collectively display a variety of African contexts and reflexive evidence of the authors' African cultural roots. Connecting…

  1. North African populations carry the signature of admixture with Neandertals

    DEFF Research Database (Denmark)

    Sánchez-Quinto, Federico; Botigué, Laura R; Civit, Sergi

    2012-01-01

    One of the main findings derived from the analysis of the Neandertal genome was the evidence for admixture between Neandertals and non-African modern humans. An alternative scenario is that the ancestral population of non-Africans was closer to Neandertals than to Africans because of ancient popu...

  2. Engaging Youth through African-Derived Dance and Culture

    Science.gov (United States)

    Franklin, Kikora

    2013-01-01

    This article provides a brief history of African and African-derived dance and culture and highlights the physical health, dance education, historical, and cultural benefits of a school-based program that incorporates African dance as its core component. The article also includes the phases of the programming and brings attention to potential…

  3. Registers in the Academic Writing of African American College Students

    Science.gov (United States)

    Syrquin, Anna F.

    2006-01-01

    The study examines the development of the registers of academic writing by African American college-level students through style and grammar: indirection inherent in the oral culture of the African American community and the paratactic functions of "because." Discourse analysis of 74 samples of academic writing by 20 African American undergraduate…

  4. Some Growth Points in African Child Development Research

    Science.gov (United States)

    Serpell, Robert; Marfo, Kofi

    2014-01-01

    We reflect on ways in which research presented in earlier chapters responds to challenges of generating an African child development field and identify additional issues calling for the field's attention. The chapters collectively display a variety of African contexts and reflexive evidence of the authors' African cultural roots.…

  5. Student-Centered Designs of Pan-African Literature Courses

    Science.gov (United States)

    M'Baye, Babacar

    2010-01-01

    A student-centered teaching methodology is an essential ingredient of a successful Pan-African literary course. In this article, the author defines Pan-Africanism and how to go about designing a Pan-African literature course. The author combines reading assignments with journals, film presentations, and lectures in a productive learning…

  6. The Model Confidence Set

    DEFF Research Database (Denmark)

    Hansen, Peter Reinhard; Lunde, Asger; Nason, James M.

    The paper introduces the model confidence set (MCS) and applies it to the selection of models. A MCS is a set of models that is constructed such that it will contain the best model with a given level of confidence. The MCS is in this sense analogous to a confidence interval for a parameter. The MCS......, beyond the comparison of models. We apply the MCS procedure to two empirical problems. First, we revisit the inflation forecasting problem posed by Stock and Watson (1999), and compute the MCS for their set of inflation forecasts. Second, we compare a number of Taylor rule regressions and determine...... the MCS of the best in terms of in-sample likelihood criteria....

  7. Enlargements of positive sets

    CERN Document Server

    Bot, Radu Ioan

    2008-01-01

    In this paper we introduce the notion of enlargement of a positive set in SSD spaces. To a maximally positive set $A$ we associate a family of enlargements $\\E(A)$ and characterize the smallest and biggest element in this family with respect to the inclusion relation. We also emphasize the existence of a bijection between the subfamily of closed enlargements of $\\E(A)$ and the family of so-called representative functions of $A$. We show that the extremal elements of the latter family are two functions recently introduced and studied by Stephen Simons. In this way we extend to SSD spaces some former results given for monotone and maximally monotone sets in Banach spaces.

  8. 'Great power' intervention in African armed conflicts

    DEFF Research Database (Denmark)

    Olsen, Gorm Rye

    2015-01-01

    to contribute to understanding the changing geopolitical environment and the current conditions for conflict management in Africa. The focus is not on trade and aid. The paper launches the hypothesis that the explanations why the US, China and the EU have intervened are basically identical. In spite......This paper asks why the United States (US), China and the European Union (EU) have intervened in a number of armed conflicts in Africa in the twenty-first century. Scrutiny and comparison of the motivations and interests of the three non-African actors in intervening in African crises are assumed...

  9. Qualitative Examination of African American Women's Perspectives about Depression

    Directory of Open Access Journals (Sweden)

    K. B. Holden

    2015-07-01

    Full Text Available Gaining greater understanding about the various psychosocial, socio-cultural, and environmental factors that may influence experiences of depression among African American women (AAW helps elucidate how this mental illness impacts the lives of this population. Sixty-three adult AAW comprised the study’s convenience sample.  Specifically, focus group cohorts inclusive of women from an academic institution, a primary healthcare clinic, and an urban community setting were conducted.  Results indicated six (6 dominant common themes as issues that may increase risk for depression among diverse AAW.  Similarities and differences about perspectives that contributed to depression were delineated among the three cohorts of AAW.  These results are important for mental/behavioral health researchers, practitioners, and public health professionals that are engaged in the design and implementation of culturally centered and gender-specific prevention and intervention strategies targeted to AAW at risk for depression.  

  10. Energy consumption and economic growth revisited in African countries

    Energy Technology Data Exchange (ETDEWEB)

    Eggoh, Jude C.; Bangake, Chrysost; Rault, Christophe [Orleans Univ. (France). LEO

    2011-09-15

    The aim of this paper is to provide new empirical evidence on the relationship between energy consumption and economic growth for 21 African countries over the period from 1970 to 2006, using recently developed panel cointegration and causality tests. The countries are divided into two groups: net energy importers and net energy exporters. It is found that there exists a long-run equilibrium relationship between energy consumption, real GDP, prices, labor and capital for each group of countries as well as for the whole set of countries. This result is robust to possible cross-country dependence and still holds when allowing for multiple endogenous structural breaks, which can differ among countries. Furthermore, we find that decreasing energy consumption decreases growth and vice versa, and that increasing energy consumption increases growth, and vice versa, and that this applies for both energy exporters and importers. Finally, there is a marked difference in the cointegration relationship when country groups are considered. (orig.)

  11. African trypanosomiasis and antibodies: implications for vaccination, therapy and diagnosis.

    Science.gov (United States)

    Magez, Stefan; Radwanska, Magdalena

    2009-10-01

    African trypanosomiasis causes devastating effects on human populations and livestock herds in large parts of sub-Saharan Africa. Control of the disease is hampered by the lack of any efficient vaccination results in a field setting, and the severe side effects of current drug therapies. In addition, with the exception of Trypanosoma brucei gambiense infections, the diagnosis of trypanosomiasis has to rely on microscopic analysis of blood samples, as other specific tools are nonexistent. However, new developments in biotechnology, which include loop-mediated isothermal amplification as an adaptation to conventional PCR, as well as the antibody engineering that has allowed the development of Nanobody technology, offer new perspectives in both the detection and treatment of trypanosomiasis. In addition, recent data on parasite-induced B-cell memory destruction offer new insights into mechanisms of vaccine failure, and should lead us towards new strategies to overcome trypanosome defenses operating against the host immune system.

  12. HIV stigma and nurse job satisfaction in five African countries.

    Science.gov (United States)

    Chirwa, Maureen L; Greeff, Minrie; Kohi, Thecla W; Naidoo, Joanne R; Makoae, Lucy N; Dlamini, Priscilla S; Kaszubski, Christopher; Cuca, Yvette P; Uys, Leana R; Holzemer, William L

    2009-01-01

    This study explored the demographic and social factors, including perceived HIV stigma, that influence job satisfaction in nurses from 5 African countries. A cross-sectional survey was conducted of nurses (n = 1,384) caring for patients living with HIV infection in Lesotho, Malawi, South Africa, Swaziland, and Tanzania. Total job satisfaction in this sample was lower than 2 comparable studies in South Africa and the United Kingdom. The Personal Satisfaction subscale was the highest in this sample, as in the other 2. Job satisfaction scores differed significantly among the 5 countries, and these differences were consistent across all subscales. A hierarchical regression showed that mental and physical health, marital status, education level, urban/rural setting, and perceived HIV stigma had significant influence on job satisfaction. Perceived HIV stigma was the strongest predictor of job dissatisfaction. These results provide new areas for intervention strategies that might enhance the work environment for nurses in these countries.

  13. HIV Stigma and Nurse Job Satisfaction in Five African Counties

    Science.gov (United States)

    Chirwa, Maureen L.; Greeff, Minrie; Kohi, Thecla W.; Naidoo, Joanne R.; Makoae, Lucy N.; Dlamini, Priscilla S.; Kaszubski, Christopher; Cuca, Yvette P.; Uys, Leana R.; Holzemer, William L.

    2009-01-01

    This study explored the demographic and social factors, including perceived HIV stigma, that influence job satisfaction in nurses from 5 African countries. A cross-sectional survey was conducted of nurses (n = 1,384) caring for patients living with HIV infection in Lesotho, Malawi, South Africa, Swaziland, and Tanzania. Total job satisfaction in this sample was lower than 2 comparable studies in South Africa and the United Kingdom. The subscale, Personal Satisfaction, was the highest in this sample as in the other 2. Job Satisfaction scores differed significantly among the 5 countries and these differences were consistent across all subscales. A hierarchical regression demonstrated that mental and physical health, marital status, education level, urban/rural setting, and perceived HIV stigma had significant influences on job satisfaction. Perceived HIV stigma was the strongest predictor of job dissatisfaction. These findings provide new areas for intervention strategies that might enhance the work environment for nurses in these countries. PMID:19118767

  14. Independent and linked migrants: determinants of African American interstate migration.

    Science.gov (United States)

    Lee, S W; Roseman, C C

    1997-01-01

    "Through kinship and other links to destinations, many African American interstate migrants in the United States join other people in destination households. These ¿linked' migrants contrast to ¿independent migrants' who move as individuals or intact groups and set up their own households at the destination. Using U.S. Census Public Use Micro Sample data, this paper first shows that, in the 1985-90 period, about 45 percent of all Black interstate migrants were independent, compared to 38 percent who were linked to housing at the destination and 17 percent who moved into group quarters. Second, a multinomial logit model, incorporating individual and state-level variables, is specified that contrasts the determinants of independent and linked migration.... It is concluded that the understanding of Black migration must take into account a variety of factors beyond traditional labor market conditions, including links to the destination and individual housing circumstances."

  15. Sentential negation in South African Sign Language: A case study

    Directory of Open Access Journals (Sweden)

    Courtney de Barros

    2016-09-01

    Full Text Available As with other sign languages, South African Sign Language (SASL expresses negation using both manual and non-manual features. In this case study, naturalistic data provided by two native signers of SASL are analysed to show the syntactic relationship between these two sets of features. Using a Principles and Parameters approach and Government and Binding Theory, we investigate the syntactic scope of negation in our SASL data. We observe that side-to-side headshake, as a non-manual feature, appears to be the chief clausal negator in SASL, with a clause-final manual negative particle, NOT, playing a secondary role. We describe the negative headshake as a featural affix which is base-generated in the head of NegP and triggers V-to-Neg raising. The negative particle NOT appears to be base-generated in the Specifier of NegP. Suggestions for further syntactic research on SASL are provided.

  16. Combinatorics of finite sets

    CERN Document Server

    Anderson, Ian

    2011-01-01

    Coherent treatment provides comprehensive view of basic methods and results of the combinatorial study of finite set systems. The Clements-Lindstrom extension of the Kruskal-Katona theorem to multisets is explored, as is the Greene-Kleitman result concerning k-saturated chain partitions of general partially ordered sets. Connections with Dilworth's theorem, the marriage problem, and probability are also discussed. Each chapter ends with a helpful series of exercises and outline solutions appear at the end. ""An excellent text for a topics course in discrete mathematics."" - Bulletin of the Ame

  17. Setting goals in psychotherapy

    DEFF Research Database (Denmark)

    Emiliussen, Jakob; Wagoner, Brady

    2013-01-01

    The present study is concerned with the ethical dilemmas of setting goals in therapy. The main questions that it aims to answer are: who is to set the goals for therapy and who is to decide when they have been reached? The study is based on four semi-­‐structured, phenomenological interviews...... that are based on asymmetric collaboration between the therapist and the client. Determining goals and deciding when they are reached are not “sterile” procedures, as both the client and the therapist might have different agendas when working therapeutically. The psychologists that participated in this study...

  18. Why quasi-sets?

    Directory of Open Access Journals (Sweden)

    Décio Krause

    2002-11-01

    Full Text Available Quasi-set theory was developed to deal with collections of indistinguishable objects. In standard mathematics, there are no such kind of entities, for indistinguishability (agreement with respect to all properties entails numerical identity. The main motivation underlying such a theory is of course quantum physics, for collections of indistinguishable (’identical’ in the physicists’ jargon particles cannot be regarded as ’sets’ of standard set theories, which are collections of distinguishable objects. In this paper, a rationale for the development of such a theory is presented, motivated by Heinz Post’s claim that indistinguishability ofquantum entities should be attributed ’right at the start’.

  19. Set theory and logic

    CERN Document Server

    Stoll, Robert R

    1979-01-01

    Set Theory and Logic is the result of a course of lectures for advanced undergraduates, developed at Oberlin College for the purpose of introducing students to the conceptual foundations of mathematics. Mathematics, specifically the real number system, is approached as a unity whose operations can be logically ordered through axioms. One of the most complex and essential of modern mathematical innovations, the theory of sets (crucial to quantum mechanics and other sciences), is introduced in a most careful concept manner, aiming for the maximum in clarity and stimulation for further study in

  20. Nonmeasurable sets and functions

    CERN Document Server

    Kharazishvili, Alexander

    2004-01-01

    The book is devoted to various constructions of sets which are nonmeasurable with respect to invariant (more generally, quasi-invariant) measures. Our starting point is the classical Vitali theorem stating the existence of subsets of the real line which are not measurable in the Lebesgue sense. This theorem stimulated the development of the following interesting topics in mathematics:1. Paradoxical decompositions of sets in finite-dimensional Euclidean spaces;2. The theory of non-real-valued-measurable cardinals;3. The theory of invariant (quasi-invariant)extensions of invariant (quasi-invaria

  1. On Random Rough Sets

    Institute of Scientific and Technical Information of China (English)

    Weizhi Wu

    2006-01-01

    In this paper,the concept of a random rough set which includes the mechanisms of numeric and non-numeric aspects of uncertain knowledge is introduced. It is proved that for any belief structure and its inducing belief and plausibility measures there exists a random approximation space such that the associated lower and upper probabilities are respectively the given belief and plausibility measures, and vice versa. And for a random approximation space generated from a totally random set, its inducing lower and upper probabilities are respectively a pair of necessity and possibility measures.

  2. A comparison between medicine from an African (Ubuntu and Western philosophy

    Directory of Open Access Journals (Sweden)

    ED Prinsloo

    2001-09-01

    Full Text Available I consider the Ubuntu way of caring for the sick in terms of the Ubuntu world-view by systematizing the scattered views. I argue that this world-view is underpinned by the regulative concept of sharing and that caring in Ubuntuthinking can only be understood correctly in terms of sharing. I substantiate my exposition in terms of what Africans themselves claim Ubuntu is and relate its meaning to African thinking in general. I consider the uniqueness of this world-view by showing how an African thinker compares it to Western world-views on causality and critically consider these comparisons. I apply this world-view to African medicine and evaluate the Ubuntu idea of causes in medicine in comparison with causality in Western thinking by considering the two frameworks of medical care in terms of their viability respectively. I conclude that causal patterns in medicine are controversial in both thinkings but argue that it sets the framework for intercultural communication that can lead both to a better understanding of each other and to some positive developments in medicine. These ways of dealing with the topic represents the significance of this article as an addition to existing knowledge.

  3. Is Africa’s current growth reducing inequality? Evidence from some selected african countries

    Directory of Open Access Journals (Sweden)

    Alege P.O.

    2015-06-01

    Full Text Available Is Africa’s current growth reducing inequality? What are the implications of growth on output performances in Africa? Does the effect of Africa’s growth on sectorial output have any implication for inequality in Africa? The study investigates the effect of shocks on a set of macroeconomic variables on inequality (measured by life expectancy and the implication of this on sectors that are perceived to provide economic empowerment in form of employment for people living in the African countries in our sample. Studies already find that growth in many African countries has not been accompanied with significant improvement in employment. Therefore inequality is subject to a counter cyclical trend in production levels when export destination countries experience a recession. The study also provides insight on the effect of growth on sectorial output for three major sectors in the African economy with the intent of analyzing the impact of growth on sectorial development. The method used in this study is Panel Vector Autoregressive (PVAR estimation and the obvious advantage of this method lies in the fact that it allows us to capture both static and dynamic interdependencies and to treat the links across units in an unrestricted fashion. Data is obtained from World Bank (WDI Statistics for the period 1985 to 2012 (28 years for 10 African Countries. Our main findings confirm strong negative relationship between GDP growth and life expectancy and also for GDP and the services and manufacturing sector considering the full sample.

  4. Outside-of-school time obesity prevention and treatment interventions in African American youth.

    Science.gov (United States)

    Barr-Anderson, D J; Singleton, C; Cotwright, C J; Floyd, M F; Affuso, O

    2014-10-01

    Outside-of-school time (OST; i.e. before/after-school hours, summer time), theory-based interventions are potential strategies for addressing increased obesity among African American youth. This review assessed interventions across multiple settings that took place during OST among African American youth aged 5-18 years old. Seven databases were searched for studies published prior to October 2013; 28 prevention and treatment interventions that assessed weight or related behaviours as a primary or secondary outcome were identified. Overall, these studies reported heterogeneous intervention length, theoretical frameworks, methodological quality, outcomes, cultural adaption and community engagement; the latter two attributes have been identified as potentially important intervention strategies when working with African Americans. Although not always significant, generally, outcomes were in the desired direction. When examining programmes by time of intervention (i.e. after-school, summer time, time not specified or multiple time periods), much of the variability remained, but some similarities emerged. After-school studies generally had a positive impact on physical activity, fruit/vegetable consumption and caloric intake, or body composition. The single summer time intervention showed a trend towards reduced body mass index. Overall findings suggest that after-school and summer programmes, alone or perhaps in combination, offer potential benefits for African American youth and could favourably influence diet and physical activity behaviour.

  5. Social work research on African Americans and suicidal behavior: a systematic 25-year review.

    Science.gov (United States)

    Joe, Sean; Niedermeier, Danielle M

    2008-11-01

    Suicide among African Americans is a neglected topic. Social workers practice in both clinical and nonclinical settings, and as the largest occupational group of mental health professionals, they have a unique opportunity to reach this underserved group. However, little is known about social work's empirical knowledge base for recognition and treatment of suicidal behavior among African Americans. The authors performed a systematic critical review of published articles by social workers on African American suicide and suicidal behavior, to ascertain the state of social worker's contribution to and knowledge of suicide risk factors and effective treatments. They conducted Web-based (for example, Social Work Abstracts, PsycINFO, PubMed, JSTOR) and manual searches of suicide research conducted by social work investigators and published in peer-reviewed journals from 1980 to 2005. References cited in the articles were used to identify candidate articles. According to the search results, social workers contributed only 11 empirical research articles focusing on African American suicide or nonfatal suicidal behavior. Risk factors for suicide are reviewed, and the implications for clinical social work practice and research are addressed.

  6. The African VLBI network project

    Science.gov (United States)

    Loots, Anita

    2015-01-01

    larger teams in science, engineering and technology issues and collaborate with the broader global science community to develop new African radio astronomy science communities.

  7. Predicting Non-African American Lesbian and Heterosexual Preadoptive Couples' Openness to Adopting an African American Child

    Science.gov (United States)

    Goldberg, Abbie E.; Smith, JuliAnna Z.

    2009-01-01

    Despite increases in transracial adoption, African American children remain the least likely to be adopted. No research has examined the factors that predict prospective adopters' willingness to adopt an African American child. This study used multilevel modeling to examine predictors of willingness to adopt an African American child in a sample…

  8. Effects of Mediated Learning Experience on Raven's Matrices Scores of African and Non-African University Students in South Africa.

    Science.gov (United States)

    Skuy, Mervyn; Gewer, Anthony; Osrin, Yael; Khunou, David; Fridjhon, Peter; Rushton, J. Philippe

    2002-01-01

    Studied whether mediated learning experience would improve the scores of African students on Raven's Standard Progressive Matrices. Seventy African and 28 non-African college students in South Africa were given the Raven's Progressive Matrices on 2 occasions, and some subjects were exposed to the mediated learning experience. Both groups improved…

  9. No evidence for a large difference in ALS frequency in populations of African and European origin: a population based study in inner city London.

    Science.gov (United States)

    Rojas-Garcia, Ricardo; Scott, Kirsten M; Roche, Jose Carlos; Scotton, William; Martin, Naomi; Janssen, Anna; Goldstein, Laura H; Leigh, P Nigel; Ellis, Cathy M; Shaw, Christopher E; Al-Chalabi, Ammar

    2012-01-01

    Abstract Previous studies have suggested a lower incidence of ALS in people of African origin. We used a population based register in an urban setting from inner city London postcodes where there is a large population of people of African ancestry to compare the frequency of ALS in people of European and African origin. Population statistics stratified by age, gender and ethnicity were obtained from the 2001 census. Incidence and prevalence were calculated in each ethnic group. Results showed that in a population of 683,194, of which 22% were of African ancestry, 88 individuals with ALS were identified over a seven-year period, including 14 people with African ancestry. The adjusted incidence in people of African ancestry was 1.35 per 100,000 person-years (95% CI 0.72-2.3) and in those of European ancestry 1.97 per 100,000 person-years (95% CI 1.55-2.48). In conclusion, in this small population based study we could not detect a difference in rates of ALS between people of African ancestry and those of European ancestry.

  10. SET-Routes programme

    CERN Multimedia

    Marietta Schupp, EMBL Photolab

    2008-01-01

    Dr Sabine Hentze, specialist in human genetics, giving an Insight Lecture entitled "Human Genetics – Diagnostics, Indications and Ethical Issues" on 23 September 2008 at EMBL Heidelberg. Activities in a achool in Budapest during a visit of Angela Bekesi, Ambassadors for the SET-Routes programme.

  11. Setting Environmental Standards

    Science.gov (United States)

    Fishbein, Gershon

    1975-01-01

    Recent court decisions have pointed out the complexities involved in setting environmental standards. Environmental health is composed of multiple causative agents, most of which work over long periods of time. This makes the cause-and-effect relationship between health statistics and environmental contaminant exposures difficult to prove in…

  12. SET-Routes programme

    CERN Multimedia

    CERN audiovisual service

    2009-01-01

    The SET-Routes programme, launched in 2007 with the goal of attracting girls and young women to careers in science, came to an end in April this year. The result of a collaboration between EMBL, EMBO and CERN, the programme established a network of "ambassadors", women scientists who went out to talk about their careers in science at schools and universities across Europe.

  13. English At Academic Setting

    Institute of Scientific and Technical Information of China (English)

    曹悦

    2008-01-01

    This article is to help students to notice that academic writing is the essential part of university study and setting,audience,purpose and also discourse community and its expectations are all its concerns.Through academic writing,students may begin to learn how to make sense in their particular field of study.

  14. Therapists in Oncology Settings

    Science.gov (United States)

    Hendrick, Susan S.

    2013-01-01

    This article describes the author's experiences of working with cancer patients/survivors both individually and in support groups for many years, across several settings. It also documents current best-practice guidelines for the psychosocial treatment of cancer patients/survivors and their families. The author's view of the important qualities…

  15. Prices and Price Setting

    NARCIS (Netherlands)

    R.P. Faber (Riemer)

    2010-01-01

    textabstractThis thesis studies price data and tries to unravel the underlying economic processes of why firms have chosen these prices. It focuses on three aspects of price setting. First, it studies whether the existence of a suggested price has a coordinating effect on the prices of firms. Second

  16. Social Set Analysis

    DEFF Research Database (Denmark)

    Vatrapu, Ravi; Hussain, Abid; Buus Lassen, Niels

    2015-01-01

    of Facebook or Twitter data. However, there exist no other holistic computational social science approach beyond the relational sociology and graph theory of SNA. To address this limitation, this paper presents an alternative holistic approach to Big Social Data analytics called Social Set Analysis (SSA...

  17. The Crystal Set

    Science.gov (United States)

    Greenslade, Thomas B., Jr.

    2014-01-01

    In past issues of this journal, the late H. R. Crane wrote a long series of articles under the running title of "How Things Work." In them, Dick dealt with many questions that physics teachers asked themselves, but did not have the time to answer. This article is my attempt to work through the physics of the crystal set, which I thought…

  18. Invariant Set Theory

    CERN Document Server

    Palmer, T N

    2016-01-01

    Invariant Set Theory (IST) is a realistic, locally causal theory of fundamental physics which assumes a much stronger synergy between cosmology and quantum physics than exists in contemporary theory. In IST the (quasi-cyclic) universe $U$ is treated as a deterministic dynamical system evolving precisely on a measure-zero fractal invariant subset $I_U$ of its state space. In this approach, the geometry of $I_U$, and not a set of differential evolution equations in space-time $\\mathcal M_U$, provides the most primitive description of the laws of physics. As such, IST is non-classical. The geometry of $I_U$ is based on Cantor sets of space-time trajectories in state space, homeomorphic to the algebraic set of $p$-adic integers, for large but finite $p$. In IST, the non-commutativity of position and momentum observables arises from number theory - in particular the non-commensurateness of $\\phi$ and $\\cos \\phi$. The complex Hilbert Space and the relativistic Dirac Equation respectively are shown to describe $I_U$...

  19. [African swine fever in Russian Federation].

    Science.gov (United States)

    Zaberezhnyĭ, A D; Aliper, T I; Grebennikova, T A; Verkhovskiĭ, O A; Sanchez-Vizcaino, J M; Mur, Lina; Nepoklonov, E A; L'vov, D K

    2012-01-01

    African swine fever (ASF) is an infectious viral disease that causes high economic losses due to the necessity of depopulation of pigs in affected areas, sanitary measures, trade restrictions, etc. The virus (ASFV) is relatively stable in the unprocessed meat products and environment. Thus, large areas are at risk due to free movement of people and products. The ASFV does not affect people and animals, except the wild and domestic pigs. Some ticks can become infected and carry the virus for years. Adaptation of the virus by changing into the less virulent form would mean the threat of an endemic situation to the area. The disease is endemic in domestic and wild pigs in most of sub-Saharan Africa and Sardinia, Italy. There is no treatment for ASF, and no vaccine has been developed. In case of infection with less virulent ASFV strains, the recovered pigs could spread the virus as long as their live. In terms of clinical symptoms, ASF is very similar to Classical Swine Fever. The methods of laboratory diagnostics are well developed and efficient for identification of ASFV and virus-specific antibodies. Experience of eradication of ASF in Spain suggests the importance of serological monitoring of pigs. In the spring of 2007, the ASF was detected in the Caucasus region. Same virus was detected in Georgia, Armenia, Azerbaijan, and Russia. The ASFV circulating in the Caucasus and the Russian Federation is a highly virulent virus. No reduction of the virulence was observed since the first outbreak in Georgia. In the last years, the ASF remained in the Caucasus, southern parts of Russia and appeared occasionally as far as St. Petersburg and St. Petersburg region, and in the area of Nizhny Novgorod. Domestic pigs play an important role in the ASFV spread; they transfer the virus to the wild boars. The virus circulates in the population of wild boars depending on their density in the area. Occasionally, the disease is spread from wild to domestic pigs. There is no evidence of

  20. Setting up a structured laboratory mentoring programme

    Directory of Open Access Journals (Sweden)

    Talkmore Maruta

    2013-03-01

    Full Text Available Introduction: Laboratory mentoring programmes can be an important vehicle to establish and solidify quality management systems and help laboratories achieve accreditation goals. Different mentoring approaches have been used with varying levels of success. The authors provide a guide to implementing a structured laboratory mentorship programme based on their practical field experience.Method: The study is based on experience in Lesotho as well as subsequent roll out of a similar approach in the other African countries of Zimbabwe, Mozambique, Swaziland and Cameroon between 2009 and 2011.Summary: We highlight critical elements to consider when setting up a long-term, sustainable and well-structured mentorship programme. These elements include: well-defined goals; sufficient length of mentor engagement on site; standardised approach across laboratories; measurement of progress using standardised tools; well-structured reporting mechanisms; alignment of the programme with overall Ministry of Health plans; and selection and training of the mentors. These elements will differ in application, depending on countries’ needs and available resources. A structured approach allows for scalability, comparison across laboratories and countries and an easier approach to budgeting and planning for countries intending to set up similar programmes.

  1. "Now the African reigns supreme": the rise of African boxing on the Witwatersrand, 1924-1959.

    Science.gov (United States)

    Fleming, Tyler

    2011-01-01

    This essay explores the growth of boxing among the African populations on the Witwatersrand region of South Africa between 1924 and 1959. It details how the sport's jump in popularity with Africans paralleled migration to Johannesburg. Africans increasingly saw boxing as an activity and skill conducive with survival in this new environment, and thus the sport grew in popularity, stature, and skill-level amongst this emergent urban population. The essay further explores the various ways that the sport was disseminated and popularized during the era, thus detailing how the sport reached both the African masses and petit-bourgeois educated elite. As their presence in Johannesburg became more and more permanent, boxing came to encompass various meanings and ideals, such as notions of discipline, independence and civility, to these urban populations.

  2. African-American women and abortion: a neglected history.

    Science.gov (United States)

    Ross, L J

    1992-01-01

    The history of African-American women's efforts to control their fertility is largely unknown. From slavery to the present, the growth rate of the African-American population has been cut in half. Demographers and historians frequently attribute this change to external factors such as poverty, disease, and coerced birth control, rather than the deliberate agency of African-American women. This essay assembles a brief historical record of the ways African-American women have sought to control their fertility through the use of abortion and birth control. It also examines the activism of African-American women in the establishment of family planning clinics and in defense of abortion rights.

  3. Family Support and Colorectal Cancer Screening among Urban African Americans.

    Science.gov (United States)

    Brittain, Kelly; Taylor, Jacquelyn Y; Loveland-Cherry, Carol; Northouse, Laurel; Caldwell, Cleopatra H

    2012-07-01

    Colorectal cancer (CRC) is the third leading cause of cancer death among African Americans. Less than 50% of African Americans have had CRC screening. This study examined the relationships between family support and influence, cultural identity, CRC beliefs, and a screening informed decision among 129 urban African Americans. Family support (p < .01) significantly predicted CRC beliefs and CRC beliefs significantly predicted informed decision (p < .01). Based on study results, practitioners should routinely assess family support and CRC beliefs with African Americans patients. This may improve patient-provider shared decision-making satisfaction and CRC screening adherence among African American patients.

  4. Prevalence of Stuttering in African American Preschoolers

    Science.gov (United States)

    Proctor, Adele; Yairi, Ehud; Duff, Melissa C.; Zhang, Jie

    2008-01-01

    Purpose: In this study, the authors sought to determine the prevalence of stuttering in African American (AA) 2- to 5-year-olds as compared with same-age European Americans (EAs). Method: A total of 3,164 children participated: 2,223 AAs and 941 EAs. Data were collected using a 3-pronged approach that included investigators' individual…

  5. The landscape of recombination in African Americans.

    Science.gov (United States)

    Hinch, Anjali G; Tandon, Arti; Patterson, Nick; Song, Yunli; Rohland, Nadin; Palmer, Cameron D; Chen, Gary K; Wang, Kai; Buxbaum, Sarah G; Akylbekova, Ermeg L; Aldrich, Melinda C; Ambrosone, Christine B; Amos, Christopher; Bandera, Elisa V; Berndt, Sonja I; Bernstein, Leslie; Blot, William J; Bock, Cathryn H; Boerwinkle, Eric; Cai, Qiuyin; Caporaso, Neil; Casey, Graham; Cupples, L Adrienne; Deming, Sandra L; Diver, W Ryan; Divers, Jasmin; Fornage, Myriam; Gillanders, Elizabeth M; Glessner, Joseph; Harris, Curtis C; Hu, Jennifer J; Ingles, Sue A; Isaacs, William; John, Esther M; Kao, W H Linda; Keating, Brendan; Kittles, Rick A; Kolonel, Laurence N; Larkin, Emma; Le Marchand, Loic; McNeill, Lorna H; Millikan, Robert C; Murphy, Adam; Musani, Solomon; Neslund-Dudas, Christine; Nyante, Sarah; Papanicolaou, George J; Press, Michael F; Psaty, Bruce M; Reiner, Alex P; Rich, Stephen S; Rodriguez-Gil, Jorge L; Rotter, Jerome I; Rybicki, Benjamin A; Schwartz, Ann G; Signorello, Lisa B; Spitz, Margaret; Strom, Sara S; Thun, Michael J; Tucker, Margaret A; Wang, Zhaoming; Wiencke, John K; Witte, John S; Wrensch, Margaret; Wu, Xifeng; Yamamura, Yuko; Zanetti, Krista A; Zheng, Wei; Ziegler, Regina G; Zhu, Xiaofeng; Redline, Susan; Hirschhorn, Joel N; Henderson, Brian E; Taylor, Herman A; Price, Alkes L; Hakonarson, Hakon; Chanock, Stephen J; Haiman, Christopher A; Wilson, James G; Reich, David; Myers, Simon R

    2011-07-20

    Recombination, together with mutation, gives rise to genetic variation in populations. Here we leverage the recent mixture of people of African and European ancestry in the Americas to build a genetic map measuring the probability of crossing over at each position in the genome, based on about 2.1 million crossovers in 30,000 unrelated African Americans. At intervals of more than three megabases it is nearly identical to a map built in Europeans. At finer scales it differs significantly, and we identify about 2,500 recombination hotspots that are active in people of West African ancestry but nearly inactive in Europeans. The probability of a crossover at these hotspots is almost fully controlled by the alleles an individual carries at PRDM9 (P value < 10(-245)). We identify a 17-base-pair DNA sequence motif that is enriched in these hotspots, and is an excellent match to the predicted binding target of PRDM9 alleles common in West Africans and rare in Europeans. Sites of this motif are predicted to be risk loci for disease-causing genomic rearrangements in individuals carrying these alleles. More generally, this map provides a resource for research in human genetic variation and evolution.

  6. African American Homeschooling Practices: Empirical Evidence

    Science.gov (United States)

    Mazama, Ama

    2016-01-01

    Despite a significant increase in scholarly interest for homeschooling, some of its most critical aspects, such as instructional daily practices, remain grossly understudied. This essay thus seeks to fill that void by presenting empirical evidence regarding the homeschooling practices of a specific group, African Americans. Most specifically, the…

  7. African American Women Counselors, Wellness, and Spirituality

    Science.gov (United States)

    Knowles, Debora; Bryant, Rhonda M.

    2011-01-01

    Given their tremendous professional responsibilities, professional counselors face daunting challenges to remaining healthy and avoiding role stress and overload. This article explores the intersection of race, gender, wellness, and spirituality in the self-care of African American women counselors. The authors give particular attention to…

  8. Researching Africa : Explorations of everyday African encounters

    NARCIS (Netherlands)

    Bruijn, de M.E.; Merolla, D.

    2010-01-01

    The studies in this volume are the result of research carried out by students of the Research Masters in African Studies (RMAS) at Leiden University who graduated in 2008. The studies cover such areas as conflict, democracy, migration, urban and rural studies, language, communication and youth. An i

  9. Assessing sanitary mixtures in East African cities

    NARCIS (Netherlands)

    Letema, S.C.

    2012-01-01

    The urbanisation of poverty and informality in East African cities poses a threat to environmental
    health, perpetuates social exclusion and inequalities, and creates service gaps (UN-Habitat, 2008).
    This makes conventional sanitation provision untenable citywide, giving rise to the emerg

  10. HIV/AIDS among African Americans

    Science.gov (United States)

    ... Prevention VIH En Español Get Tested Find an HIV testing site near you. Enter ZIP code or city Follow HIV/AIDS CDC HIV CDC HIV/AIDS See RSS | ... Email Updates on HIV Syndicated Content Website Feedback HIV Among African Americans Format: Select One File [163K] ...

  11. Some remarks on the African wild ass

    NARCIS (Netherlands)

    Bemmel, van A.C.V.

    1972-01-01

    INTRODUCTION Without any doubt the African Wild Ass should be considered a species threatened with extinction. Therefore, it seems worth-while to collect as many data on this species as possible and to do this quickly. Data and material, however, are scarce. Many sportsmen and zoologists observed th

  12. Beijing Summit Promotes Sino-African Relations

    Institute of Scientific and Technical Information of China (English)

    Xu Weizhong

    2007-01-01

    @@ Since the establishment of the Forum on China-Africa Cooperation in 2000, China-Africa relations have entered a new period of cooperation. 2006 not only consolidated friendship between China and Africa, but also laid a sound foundation for more prosperous Sino-African relations.

  13. Breeding for trypanotolerance in African cattle

    NARCIS (Netherlands)

    Waaij, van der E.H.

    2001-01-01

    Trypanosomosis, or sleeping sickness, is one of the most important livestock diseases in Africa. Some West African cattle breeds show a degree of resistance to a trypanosome infection: they are trypanotolerant. At the International Livestock Research Institute (ILRI) in Nairobi, Kenya, an F2 experim

  14. The South African Species of Myrica

    Directory of Open Access Journals (Sweden)

    D. J. B. Killick

    1969-12-01

    Full Text Available The South African species of Myrica are revised, the 19 species previously recognized being reduced to 9. One variety is elevated to specific rank, viz. M. conifera Burm.f. var.  Integra A. Chev. becomes M. Integra (A. Chev. Killick.

  15. African and Pacific Literature: A Comparative Study.

    Science.gov (United States)

    Martin, Kristine L.

    Literary writing in Africa and the Pacific addresses themes that reflect colonial experience and the struggles of newly independent nations to cope with change and conflicts between traditional and modern existence. The novels of Chinua Achebe of Nigeria and Ngugi Wa Thiong'o of Kenya illustrate many dominant themes of African literature. Achebe…

  16. 2000 African American History Month Celebration Luncheon

    Science.gov (United States)

    2000-01-01

    Mack McKinney (left), chief, Programs Resources Management, and Delores Abraham (right), with the Astronaut office, flank one of the posters decorating the Early Space Exploration Conference Center at the KSC Visitor Complex for the 2000 African American History Month Celebration Luncheon. McKinney is chairperson for the event.

  17. The Politics of African Industrial Policy

    DEFF Research Database (Denmark)

    Whitfield, Lindsay; Therkildsen, Ole; Buur, Lars;

    in the early stages of capitalist transformation that also experience the pressures of elections due to democratization, this book provides four in-depth African country studies that illustrate the challenges to economic transformation and the politics of implementing industrial policies....

  18. Examining School Engagement of African American Adolescents.

    Science.gov (United States)

    Sirin, Selcuk; Jackson, Lisa R.

    This study investigated the impact of behavioral and affective factors on 688 African American high school students' academic performance, examining the relationship between school engagement, educational expectations, self-esteem, and school achievement; noting differences between males and females; and discussing whether behavioral and affective…

  19. African Women in the Visual Arts.

    Science.gov (United States)

    Aronson, Lisa

    1991-01-01

    Explores recent studies in anthropology, art history, and archeology on African women's art from a feminist theoretical perspective. Relates women's arts to several sociological and economic factors and suggests new avenues of exploration, especially in the face of urbanization and modernization. (CJS)

  20. Coronavirus antibodies in African bat species.

    Science.gov (United States)

    Müller, Marcel A; Paweska, Janusz T; Leman, Patricia A; Drosten, Christian; Grywna, Klaus; Kemp, Alan; Braack, Leo; Sonnenberg, Karen; Niedrig, Matthias; Swanepoel, Robert

    2007-09-01

    Asian bats have been identified as potential reservoir hosts of coronaviruses associated with severe acute respiratory syndrome (SARS-CoV). We detected antibody reactive with SARS-CoV antigen in 47 (6.7%) of 705 bat serum specimens comprising 26 species collected in Africa; thus, African bats may harbor agents related to putative group 4 CoV.

  1. An Exploration of African Students in Malaysia

    Science.gov (United States)

    Lian, Irene Tan Ai

    2011-01-01

    The exploratory study is an attempt to understand the reasons that prompted African students to study in Malaysia, the challenges encountered and the coping strategies used. The research on such topics among international students is well documented, but studies on international students in Malaysia are scarce. The sample included 155 African…

  2. The African American Public Policy Update.

    Science.gov (United States)

    McAlpine, Robert; And Others

    1992-01-01

    Reviews actions of the 102nd Congress of particular interest to African Americans, including the (1) Domestic Marshall Plan House Resolution; (2) Unemployment Benefits extension; (3) Job Training Partnership Act; (4) Workplace Fairness Act; (5) Family and Medical Leave Act; and (6) Civil Rights Act of 1991. (SLD)

  3. African swine fever: an epidemiological update.

    Science.gov (United States)

    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 (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.

  4. African-American Women in History.

    Science.gov (United States)

    Martin, Ron

    1994-01-01

    Describes two reference books suitable for middle/junior high school library media centers that present information about African-American women and suggests activities for Afro-American History Month. Library media skills objectives, social studies and art objectives, grade levels, resources, instructional roles, activities and procedures,…

  5. Violent Behaviors among African-American Adolescents.

    Science.gov (United States)

    Garrett, Darhyl

    1995-01-01

    Explores the development of behaviors by using Erik Erikson's psychosocial developmental theory, with emphasis on adolescents. Examines factors, such as identity versus identity diffusion, that may be contributing to increasing acts of violence by African American adolescents. Other factors are examined that may contribute to increased violence.…

  6. African American Vernacular English and Rap Music

    Institute of Scientific and Technical Information of China (English)

    胡波

    2015-01-01

    African American Vernacular English (AAVE) is the language spoken by almost 20 milion speakers al over the world. It is also used frequently in rap lyrics. Studying the origin and grammar rules of AAVE is a very important topic in today's English Language and English Teaching Studies.

  7. African Universities Tackle the Continent's Agricultural Crisis

    Science.gov (United States)

    Lindow, Megan

    2009-01-01

    Pests, population growth, and depleted soil have wreaked havoc on agriculture in Africa, so universities across the continent are rethinking how they teach the topic. Some African universities have been building their own networks and pooling their limited resources to train more agricultural scientists and improve their responsiveness to the…

  8. Dictionaries of African Sign Languages: An Overview

    Science.gov (United States)

    Schmaling, Constanze H.

    2012-01-01

    This article gives an overview of dictionaries of African sign languages that have been published to date most of which have not been widely distributed. After an introduction into the field of sign language lexicography and a discussion of some of the obstacles that authors of sign language dictionaries face in general, I will show problems…

  9. Assessing vulnerability of urban African communities

    DEFF Research Database (Denmark)

    Karlsson Nyed, Patrik; Jean-Baptiste, Nathalie; Herslund, Lise Byskov

    2014-01-01

    East African cities are in the process of assessing their vulnerabilities to climate change, but face difficulties in capturing the complexity of the various facets of vulnerability. This holistic approach, captures four different dimensions of vulnerability to flooding - Assets, Institutions...... to flooding across the city, at the finest administrative level....

  10. Tuberculosis Detection by Giant African Pouched Rats

    Science.gov (United States)

    Poling, Alan; Weetjens, Bart; Cox, Christophe; Beyene, Negussie; Durgin, Amy; Mahoney, Amanda

    2011-01-01

    In recent years, operant discrimination training procedures have been used to teach giant African pouched rats to detect tuberculosis (TB) in human sputum samples. This article summarizes how the rats are trained and used operationally, as well as their performance in studies published to date. Available data suggest that pouched rats, which can…

  11. AFRICAN ADULT EDUCATION--A BIBLIOGRAPHY.

    Science.gov (United States)

    BOWN, LALAGE

    THIS BIBLIOGRAPHY, A TENTATIVE LISTING OF MATERIALS ON AFRICAN ADULT EDUCATION PREPARED WITHOUT FULL BIBLIOGRAPHIC DETAIL IS LIMITED TO SOURCES IN ENGLISH AND FRENCH. THE ENGLISH SOURCES DO NOT INCLUDE MANY FROM AMERICA. IT IS AN EXTENSION AND REVISION OF THE PRELIMINARY BIBLIOGRAPHY DRAWN UP AT THE UNIVERSITY OF IBADAN IN 1965. THE FIRST SECTION…

  12. Heart Truth for African American Women

    Science.gov (United States)

    THE HEART TRUTH ® FOR AFRICAN AMERICAN WOMEN: AN ACTION PLAN When you hear the term “heart disease,” what’s your first reaction? ... That’s a man’s disease.” But here’s The Heart Truth ® : Heart disease is the #1 killer of women ...

  13. Gravimetric maps of the Central African Republic

    Science.gov (United States)

    Albouy, J.; Godivier, R. (Principal Investigator)

    1982-01-01

    Gravimetric maps of the Central African Republic are described including a map of Bouguer anomalies at 1/1,000,000 in two sections (eastern sheet, western sheet) and a map, in color, of Bouguer anomalies at 1/2,000,000. Instrumentation, data acquisition, calibration, and data correction procedures are discussed.

  14. The nomenclature of the African wild ass

    NARCIS (Netherlands)

    Groves, C.P.; Smeenk, C.

    2007-01-01

    The 19th-century reports on the occurrence and identity of wild asses in North-East Africa are reviewed, as well as the names applied in various publications by Fitzinger and von Heuglin, respectively. The first published name for the African wild ass, Asinus africanus Fitzinger, 1858, is a nomen nu

  15. Contemporary Sexism in the South African Navy

    Science.gov (United States)

    Van Wijk, Charles H.

    2011-01-01

    The military traditionally embraces highly sexist attitudes. Over the past decade, the South African Navy (SAN) has been exposed to an increasingly progressive political environment. This study investigated contemporary expressions of sexism in the SAN. A representative sample of 476 sailors completed the Ambivalent Sexism Inventory, Modern Sexism…

  16. Towards a critique of indigenous African religion

    Directory of Open Access Journals (Sweden)

    Johan Strijdom

    2011-06-01

    Full Text Available In this article, it is argued that a postcolonial critique of the colonial study of religion should not preclude a critique of indigenous African religion itself. The latter may be developed from a human rights perspective and a critique of exclusionary views of indigeneity. The argument is illustrated by means of specific case studies.

  17. The African Heritage in Spanish Caribbean Literature.

    Science.gov (United States)

    Smart, Ian I.

    1981-01-01

    Uses Fanon's concept of the Manichean colonial situation and his Dialectical Theory of Identification to explore images of African heritage in the works of two mulatto Cuban poets, Gabriel de la Concepcion Valdez (1809-1844) and Nicolas Guillen (born 1902). (GC)

  18. African-American Axioms and Maxims.

    Science.gov (United States)

    Zulu, Itibari M.

    1998-01-01

    Examines and describes 30 African-American centered quotation and motivational books, all but one of which were published between 1993 and 1997. The books articulate a diversity of genres and themes. Annotations are divided into: (1) general quotation; (2) daily words and meditation/motivation sources; (3) religion and theology; and (4)…

  19. Promotive Parenting Practices among African American Mothers

    Science.gov (United States)

    Williams-Wheeler, Meeshay

    2011-01-01

    The purpose of this study was to examine communication/reasoning, behavioral control, and trust as predictors of resourcefulness among African American children during middle childhood (6-12 years of age). Mothers who practice promotive socialization strategies are more likely to rear children who are socially competent and well adjusted. Multiple…

  20. Ready, Set, Go: African American Preadolescents' Sexual Thoughts, Intentions, and Behaviors

    Science.gov (United States)

    Miller, Kim S.; Fasula, Amy M.; Lin, Carol Y.; Levin, Martin L.; Wyckoff, Sarah C.; Forehand, Rex

    2012-01-01

    Understanding of preadolescent sexuality is limited. To help fill this gap, we calculated frequencies, percentages, and confidence intervals for 1,096 preadolescents' reports of sexual thoughts, intentions, and sexual behavior. Cochran-Armitage trend tests accounted for age effects. Findings show that 9-year-olds are readying for sexual activity,…

  1. Antibacterial Resistance in African Catfish Aquaculture: a Review

    Directory of Open Access Journals (Sweden)

    Madubuike U. ANYANWU

    2016-03-01

    Full Text Available Antibacterial resistance (AR is currently one of the greatest threats to mankind as it constitutes health crisis. Extensive use of antibacterial agents in human and veterinary medicine, and farm crops have resulted in emergence of antibacterial-resistant organisms in different environmental settings including aquaculture. Antibacterial resistance in aquaculture is a serious global concern because antibacterial resistance genes (ARGs can be transferred easily from aquaculture setting to other ecosystems and the food chain. African catfish (ACF aquaculture has increased at a phenomenal rate through a continuous process of intensification, expansion and diversification. Risk of bacterial diseases has also increased and consequently there is increased use of antibacterial agents for treatment. Antibacterial resistance in ACF aquaculture has huge impact on the food chain and thus represents risk to public and animal health. In “one health” approach of curbing AR, knowledge of the sources, mechanisms and magnitude of AR in ACF aquaculture and its potential impact on the food chain is important in designing and prioritizing monitoring programs that may generate data that would be relevant for performing quantitative risk assessments, implementation of antibacterial stewardship plans, and developing effective treatment strategies for the control of ACF disease and reducing risk to public health. This review provides insight on the sources, mechanisms, prevalence and impact of antibacterial resistance in ACF aquaculture environment, a setting where the impact of AR is neglected or underestimated.

  2. Logic in African Philosophy: Examples from two Niger Delta Societies

    Directory of Open Access Journals (Sweden)

    Jones M. Jaja

    2012-04-01

    Full Text Available There have been questions as to whether African Philosophy exists or not. European scholars and some African scholars are at the opposite end of this scholarly debate. The result is the production of various works by Odera Oruka, Omoregbe, Bordunrin, Wright, Maurier and others espousing their views for or against the existence of African Philosophy. This paper attempts to show the existence of a unique Philosophy that deserves to be recognized and rightly known as African Philosophy. It shows the existence of African Logic using examples from two Niger-Delta societies. The paper begins with the concept of Logic in African thought system, the natural nature of it and it’s applicability to these communities especially as it permeates every aspect of the African way of life. The Ibani and Ogoni societies in the Niger-Delta were used as case studies.

  3. Managing the hair and skin of African American pediatric patients.

    Science.gov (United States)

    Smith, W; Burns, C

    1999-01-01

    In Africa, the ancestral home of most African Americans, hair is viewed as the epitome of beauty. However, when Africans were brought to America as slaves, they were unable to care for their hair and skin adequately and were exposed to the predominant white culture, which valued straight hair and light skin. As a result, many African Americans lost self-esteem because of the characteristics of their hair and skin. In this article we examine the anatomic and physiologic features of African American hair and skin and typical African American hair and skin care practices. Common African American hair and skin disorders and their management are discussed. The goal of this article is to help primary care providers understand the special hair and skin care required for African American children (as well as other dark-skinned patients). With good patient education, understanding one's own hair and skin characteristics can also support positive self-esteem.

  4. Hesitant fuzzy sets theory

    CERN Document Server

    Xu, Zeshui

    2014-01-01

    This book provides the readers with a thorough and systematic introduction to hesitant fuzzy theory. It presents the most recent research results and advanced methods in the field. These includes: hesitant fuzzy aggregation techniques, hesitant fuzzy preference relations, hesitant fuzzy measures, hesitant fuzzy clustering algorithms and hesitant fuzzy multi-attribute decision making methods. Since its introduction by Torra and Narukawa in 2009, hesitant fuzzy sets have become more and more popular and have been used for a wide range of applications, from decision-making problems to cluster analysis, from medical diagnosis to personnel appraisal and information retrieval. This book offers a comprehensive report on the state-of-the-art in hesitant fuzzy sets theory and applications, aiming at becoming a reference guide for both researchers and practitioners in the area of fuzzy mathematics and other applied research fields (e.g. operations research, information science, management science and engineering) chara...

  5. Energetic Causal Sets

    CERN Document Server

    Cortês, Marina

    2013-01-01

    We propose an approach to quantum theory based on the energetic causal sets, introduced in Cort\\^{e}s and Smolin (2013). Fundamental processes are causal sets whose events carry momentum and energy, which are transmitted along causal links and conserved at each event. Fundamentally there are amplitudes for such causal processes, but no space-time. An embedding of the causal processes in an emergent space-time arises only at the semiclassical level. Hence, fundamentally there are no commutation relations, no uncertainty principle and, indeed, no hbar. All that remains of quantum theory is the relationship between the absolute value squared of complex amplitudes and probabilities. Consequently, we find that neither locality, nor non locality, are primary concepts, only causality exists at the fundamental level.

  6. The Moon has set

    Science.gov (United States)

    Herschberg, I. S.; Mebius, J. E.

    1989-08-01

    The Sappho epigram mentioned in the title is shown to contain implicit astronomical information, which must have contributed to the expressiveness of Sappho's short poem to contemporary audiences. Astronomical computations are given to discover the earliest and the latest time of year for which the Pleiads set at midnight while being visible earlier in the evening, taking into account the atmospheric refraction. The time of year for which Sappho's poem is valid is concluded to run from 17 Jan. to 29 Mar.

  7. Consistent sets contradict

    CERN Document Server

    Kent, A

    1996-01-01

    In the consistent histories formulation of quantum theory, the probabilistic predictions and retrodictions made from observed data depend on the choice of a consistent set. We show that this freedom allows the formalism to retrodict several contradictory propositions which correspond to orthogonal commuting projections and which all have probability one. We also show that the formalism makes contradictory probability one predictions when applied to generalised time-symmetric quantum mechanics.

  8. Triage in military settings.

    Science.gov (United States)

    Falzone, E; Pasquier, P; Hoffmann, C; Barbier, O; Boutonnet, M; Salvadori, A; Jarrassier, A; Renner, J; Malgras, B; Mérat, S

    2017-02-01

    Triage, a medical term derived from the French word "trier", is the practical process of sorting casualties to rationally allocate limited resources. In combat settings with limited medical resources and long transportation times, triage is challenging since the objectives are to avoid overcrowding medical treatment facilities while saving a maximum of soldiers and to get as many of them back into action as possible. The new face of modern warfare, asymmetric and non-conventional, has led to the integrative evolution of triage into the theatre of operations. This article defines different triage scores and algorithms currently implemented in military settings. The discrepancies associated with these military triage systems are highlighted. The assessment of combat casualty severity requires several scores and each nation adopts different systems for triage on the battlefield with the same aim of quickly identifying those combat casualties requiring lifesaving and damage control resuscitation procedures. Other areas of interest for triage in military settings are discussed, including predicting the need for massive transfusion, haemodynamic parameters and ultrasound exploration.

  9. "They don't want our blood": social inclusion and blood donation among African migrants in Australia.

    Science.gov (United States)

    Polonsky, Michael Jay; Brijnath, Bianca; Renzaho, André M N

    2011-07-01

    The current study examines how feelings of social inclusion influence migrant communities' predisposition to donate blood, focusing specifically on Sub-Saharan African communities in Australia. We begin by explicating the theoretical links between social inclusion, citizenship and blood donation before discussing local and international perspectives of blood donation among African migrant communities. Using qualitative methods comprising nine focus group discussions, held between March and April 2010, we argue that blood donation intentions are mediated by whether or not individuals feel included in their new host society. Real and perceived discrimination experienced by African migrants in their everyday social interactions or in institutional settings can act as a barrier to blood donation. We conclude that removing such barriers, thereby increasing rates of donation in migrant communities, will help to build social capital and inclusion. Strategies for how this can be achieved are outlined.

  10. Setting Goals for Achievement in Physical Education Settings

    Science.gov (United States)

    Baghurst, Timothy; Tapps, Tyler; Kensinger, Weston

    2015-01-01

    Goal setting has been shown to improve student performance, motivation, and task completion in academic settings. Although goal setting is utilized by many education professionals to help students set realistic and proper goals, physical educators may not be using goal setting effectively. Without incorporating all three types of goals and…

  11. A note on rough set and non-measurable set

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    It is proved that rough set is equivalent to non-measurable set in measure theory. Hence, rough set is not a new concept in some sense. At the same time, we defined the measurable degree of a set by inner measure and outer measure. Its special case is the accuracy measure of rough set.

  12. Anthropometric Changes Using a Walking Intervention in African American Breast Cancer Survivors: A Pilot Study

    Directory of Open Access Journals (Sweden)

    James Kilpatrick, PhD

    2005-03-01

    Full Text Available Introduction African American women exhibit a higher mortality rate from breast cancer than do white women. African American women are more likely to gain weight at diagnosis, which may increase their risk of cancer recurrence and comorbidities. Physical activity has been shown to decrease body mass index and improve quality of life in cancer survivors. This study was designed to evaluate the feasibility and impact of a community-based exercise intervention in African American breast cancer survivors. Methods A theory-based eight-week community intervention using pedometers with scheduling, goal setting, and self-assessment was tested in a convenience sample of African American breast cancer survivors (n = 24. Data were collected at three time points to examine changes in steps walked per day, body mass index, and other anthropometric measures, attitudes, and demographic variables. Results Statistically significant increases in steps walked per day and attitude toward exercise as well as significant decreases in body mass index, body weight, percentage of body fat, and waist, hip, and forearm circumferences, as well as blood pressure, were reported from baseline to immediate post-intervention. Positive changes were retained or improved further at three-month follow-up except for attitude toward exercise. Participant retention rate during eight-week intervention was 92%. Conclusion Increasing walking for exercise, without making other changes, can improve body mass index, anthropometric measures, and attitudes, which are associated with improved quality of life and reduced risk of cancer recurrence. The high participant retention rate, along with significant study outcomes, demonstrate that among this sample of African American breast cancer survivors, participants were motivated to improve their exercise habits.

  13. Differences in candidate gene association between European ancestry and African American asthmatic children.

    Directory of Open Access Journals (Sweden)

    Tesfaye M Baye

    Full Text Available BACKGROUND: Candidate gene case-control studies have identified several single nucleotide polymorphisms (SNPs that are associated with asthma susceptibility. Most of these studies have been restricted to evaluations of specific SNPs within a single gene and within populations from European ancestry. Recently, there is increasing interest in understanding racial differences in genetic risk associated with childhood asthma. Our aim was to compare association patterns of asthma candidate genes between children of European and African ancestry. METHODOLOGY/PRINCIPAL FINDINGS: Using a custom-designed Illumina SNP array, we genotyped 1,485 children within the Greater Cincinnati Pediatric Clinic Repository and Cincinnati Genomic Control Cohort for 259 SNPs in 28 genes and evaluated their associations with asthma. We identified 14 SNPs located in 6 genes that were significantly associated (p-values <0.05 with childhood asthma in African Americans. Among Caucasians, 13 SNPs in 5 genes were associated with childhood asthma. Two SNPs in IL4 were associated with asthma in both races (p-values <0.05. Gene-gene interaction studies identified race specific sets of genes that best discriminate between asthmatic children and non-allergic controls. CONCLUSIONS/SIGNIFICANCE: We identified IL4 as having a role in asthma susceptibility in both African American and Caucasian children. However, while IL4 SNPs were associated with asthma in asthmatic children with European and African ancestry, the relative contributions of the most replicated asthma-associated SNPs varied by ancestry. These data provides valuable insights into the pathways that may predispose to asthma in individuals with European vs. African ancestry.

  14. Does ‘African mathematics’ facilitate access to mathematics? Towards an ongoing critical analysis of ethnomathematics in a South African context

    Directory of Open Access Journals (Sweden)

    Kai Horsthemke

    2007-10-01

    Full Text Available Mosibudi Mangena, the Minister of Science and Technology, said in an address to the Annual Congress of the South African Mathematical Society at the University of the Potchefstroom, November 2, 2004: “There is one thing we need to address before anything else. We need to increase the number of young people, particularly blacks and women, who are able to successfully complete the first course in Mathematics at our universities.” How is this to  be achieved? A popular trend involves a call for the introduction and incorporation of so-called ethnomathematics, and more particularly ‘African mathematics’, into secondary and tertiary curricula. Although acknowledging the obvious benefits of so-called ethnomathematics, this paper critically analyses three aspects of ethnomathematics that have been neglected in past critiques. Our focus is not on the relationship as such between ethnomathematics and mathematics education. Our critique involves (1 epistemological and logical misgivings, (2 a new look at practices and skills, (3 concerns about embracing ‘African mathematics’ as valid and valuable – just because it is African. The first concern is about problems relating to the relativism and appeals to cultural specificity that characterise ethnomathematics, regarding mathematical knowledge and truth. The second set of considerations concern the idea  that not all mathematical practices and skills are necessarily culturally or socially embedded. With regard to the validity and viability of ‘African mathematics’, our misgivings not only concern the superficial sense of ‘belonging’ embodied in the idea of a uniquely and distinctly African mathematics, and the threat of further or continuing marginalisation and derogation, but the implicitly (self-demeaning nature of this approach. This paper serves as a reminder that a critical position in the deliberations of ethnomathematics needs to be sustained. It warns against the bandwagon

  15. The Level of African Engagement at the World Trade Organization from 1995 to 2010.

    Directory of Open Access Journals (Sweden)

    Joan Apecu

    2013-06-01

    competitiveness rankings. In this analysis, over a 15-year period, it is concluded that although African negotiators better expressed concerns and drew attention to their problems, a consistent, high quality level of participation and engagement has not been attained across the three core areas of WTO work. As a consequence, successful attainment of set objectives has remained elusive.

  16. See No Evil Write No Evil: Sexual Deviance In African Literature During Colonialism

    Directory of Open Access Journals (Sweden)

    Wazha Lopang

    2014-10-01

    Full Text Available This paper argues that writers of African literature during colonialism differed in their portrayal of sexuality, particularly that which was considered deviant by nature, because of their need to build an ‘upright’ African image, no matter how artificial this was. The paper looks at how the political environment dictated sexual expression amongst characters and that the urban setting was more candid in its narrative style. There was also a total blackout on homosexuality between characters and where this took place, it was presented as something that was alien to the African culture in general and to the personality in particular. Writers who depicted pre-colonial settings limited sexuality to procreation and as a comment to the African’s link with the ancestors. There is also a correlation between the geographic location of texts and the degree of sexual expression that the writer engages in. As such the paper argues that sexual deviance is depicted as a matter of geography over and above thematic concerns.

  17. Social Set Visualizer

    DEFF Research Database (Denmark)

    Flesch, Benjamin; Vatrapu, Ravi; Mukkamala, Raghava Rao

    2015-01-01

    in relation to the garment factory accidents in Bangladesh, and analyze the results. The enterprise application domain for the dashboard is corporate social responsibility (CSR) and the targeted end-users are CSR researchers and practitioners. The design of the dashboard was based on the social set analysis...... approach to computational social science mentioned above. The development of the dashboard involved cutting-edge open source visual analytics libraries (D3.js) and creation of new visualizations such as of actor mobility across time and space, conversational comets, and more. Evaluation of the dashboard...

  18. Social Set Visualizer

    DEFF Research Database (Denmark)

    Flesch, Benjamin; Hussain, Abid; Vatrapu, Ravi

    2015-01-01

    application domain for the dashboard is Corporate Social Responsibility (CSR) and the targeted end-users are CSR researchers and practitioners. The design of the dashboard was based on the "social set analytics" approach to computational social science. The development of the dash-board involved cutting......-edge open source visual analytics libraries from D3.js and creation of new visualizations (ac-tor mobility across time, conversational comets etc). Evaluation of the dashboard consisting of technical testing, usability testing, and domain-specific testing with CSR students and yielded positive results....

  19. Symmetry Adapted Basis Sets

    DEFF Research Database (Denmark)

    Avery, John Scales; Rettrup, Sten; Avery, James Emil

    In theoretical physics, theoretical chemistry and engineering, one often wishes to solve partial differential equations subject to a set of boundary conditions. This gives rise to eigenvalue problems of which some solutions may be very difficult to find. For example, the problem of finding...... eigenfunctions and eigenvalues for the Hamiltonian of a many-particle system is usually so difficult that it requires approximate methods, the most common of which is expansion of the eigenfunctions in terms of basis functions that obey the boundary conditions of the problem. The computational effort needed...

  20. Revitalizing the setting approach

    DEFF Research Database (Denmark)

    Bloch, Paul; Toft, Ulla; Reinbach, Helene Christine

    2014-01-01

    -based. Based on a presentation of ¿Health and Local Community¿, a supersetting initiative addressing the prevention of lifestyle diseases in a Danish municipality, the paper discusses the potentials and challenges of supporting local community interventions using the supersetting approach......BackgroundThe concept of health promotion rests on aspirations aiming at enabling people to increase control over and improve their health. Health promotion action is facilitated in settings such as schools, homes and work places. As a contribution to the promotion of healthy lifestyles, we have...