27 research outputs found

    Effectiveness of school-based interventions in delaying sexual debut among adolescents in sub-Saharan Africa: a protocol for a systematic review and meta-analysis

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    Introduction Early sexual debut is associated with poor sexual and reproductive health outcomes across the life course. A majority of interventions aimed at delaying sexual debut among adolescents in sub-Saharan Africa (SSA) have been implemented in schools with mixed findings on the effectiveness of such interventions. This systematic review will summarise and synthesise existing evidence on the effectiveness of school-based interventions in delaying sexual debut among adolescents aged 10–19 years.Methods and analysis We will conduct a comprehensive database search of peer-reviewed studies published in PubMed, Scopus, Science Direct, Web of Science, HINARI and EBSCO (PsycINFO, Global Health, CINAHL) and in Cochrane library, National Institute of Health and Turning Research into Practice databases for ongoing studies yet to be published. All studies conducted in SSA between January 2009 and December 2020, regardless of the study design, will be included. Two authors will independently screen all retrieved records and relevant data on sexual debut extracted.Data will be pooled using the random effects model. Dichotomous outcomes will be reported as risk ratios and continuous data as mean difference at 95% CI. Heterogeneity will be assessed using the IÂČ statistic. Findings will be presented in tables and charts, while providing a description of all included studies, themes and concepts drawn from literature.Ethics and dissemination Ethical approval is not required. The findings will be disseminated through peer-reviewed publications, presentations at relevant conferences and other convening focusing on adolescent sexual and reproductive health

    Identifying Subgroups of Care Providers Participating in a Telehealth Educational Intervention: Hierarchical Cluster Analysis of Evaluation Data

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    Health care providers (HCPs) serving HIV-infected patients, especially in rural and underserved areas, have limited access to continuing medical education. Objective: To identify subgroups of HCPs who might benefit from a telehealth training program focusing on HIV/AIDS care based on HCPs’ objective for attending the training. Methods: Hierarchical cluster analysis combined with thematic analysis identified the subgroups. Results: A total of 56 HCPs attended between 1 and 9 of the 12 sessions conducted (mean ≈ 2, standard deviation = 1.6). Subgroups identified included knowledge (HCPs interested in gaining, increasing, or updating their knowledge in HIV care), learn–expert (HCPs interested in learning, obtaining, or providing expert opinion), and observe–apply–network (HCPs interested in observing the training, applying knowledge gained to practice, and networking). No group differences were found in the participants’ reaction to the session, change in knowledge following the training, and other important characteristics. Conclusion: Methodological contributions of the study are discussed

    Identifying Subgroups of Care Providers Participating in a Telehealth Educational Intervention: Hierarchical Cluster Analysis of Evaluation Data

    No full text
    Health care providers (HCPs) serving HIV-infected patients, especially in rural and underserved areas, have limited access to continuing medical education. Objective: To identify subgroups of HCPs who might benefit from a telehealth training program focusing on HIV/AIDS care based on HCPs’ objective for attending the training. Methods: Hierarchical cluster analysis combined with thematic analysis identified the subgroups. Results: A total of 56 HCPs attended between 1 and 9 of the 12 sessions conducted (mean ≈ 2, standard deviation = 1.6). Subgroups identified included knowledge (HCPs interested in gaining, increasing, or updating their knowledge in HIV care), learn–expert (HCPs interested in learning, obtaining, or providing expert opinion), and observe–apply–network (HCPs interested in observing the training, applying knowledge gained to practice, and networking). No group differences were found in the participants’ reaction to the session, change in knowledge following the training, and other important characteristics. Conclusion: Methodological contributions of the study are discussed

    Increasing collaborative research output between early-career health researchers in Africa: lessons from the CARTA fellowship program

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    In 2008 nine African Universities and four African research institutions, in partnership with non-African institutions started the Consortium for Advanced Research Training in Africa (CARTA) to strengthen doctoral training and research capacity on health in Africa. This study describes particular aspects of the CARTA program that promotes collaboration between the PhD fellows in the program, and determines the patterns of collaborative publications that resulted from the intervention. We reviewed program monitoring and evaluation documents and conducted a bibliometric analysis of 806 peer-reviewed publications by CARTA fellows published between 2011 and 2018. Results indicate that recruiting multidisciplinary fellows from various institutions, encouraging registration of doctoral-level fellows outside home institutions, and organizing joint research seminars stimulated collaborative research on health-related topics. Fellows collaborated among themselves and with non-CARTA researchers. Fellows co-authored 75 papers (10%) between themselves, of which 53 (71%) and 42 (56%) included fellows of different cohorts and different disciplines respectively, and 19 (25%) involved fellows of different institutions. CARTA graduates continued to publish with each other after graduating – 11% of the collaborative publications occurred post-graduation – indicating that the collaborative approach was maintained after exiting from the program. However, not all fellows contributed to publishing collaborative papers. The study recommends concerted effort towards enhancing collaborative publications among the CARTA fellows, both doctoral and post-doctoral, which can include holding research exchange forums and collaborative grant-writing workshops

    Test 685: Fordson Power Major (Diesel)

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    EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The fuel used and the maintenance operations must also conform to the published information delivered with the tractor. The tractor is then limbered-up for 1 hour on drawbar work in accordance with the manufacturers published recommendations. The manufacturer’s representative is present to make appropriate decisions regarding mechanical adjustments. The tractor is equipped with approximately the amount of added ballast that is used during maximum drawbar tests. The tire tread-bar height must be at least 65% of new tread height prior to the maximum power run. BELT OR POWER TAKE-OFF PERFORMANCE Maximum Power and Fuel Consumption. The manufacturer’s representative makes carburetor, fuel pump, ignition and governor control settings which remain unchanged throughout tall subsequent runs. The governor and the manually operated governor control lever is set to provide the high-idle speed specified by the manufacturer for maximum power. Maximum power is measured by connecting the belt pulley or the power take-off to a dynamometer. The dynamometer load is then gradually increased until the engine is operating at the rated speed specified by the manufacturer for maximum power. The corresponding fuel consumption is measured. Varying Power and Fuel Consumption. Six different horsepower levels are used to show corresponding fuel consumption rates and how the governor causes the engine to react to the following changes in dynamometer load: 85% of the dynamometer torque at maximum power; minimum dynamometer torque, Âœ the 85% torque; maximum power; ÂŒ and Ÿ of the 85% torque. Since at tractor is generally subjected to varying loads the average of the results in this test serve well for predicting the fuel consumption of a tractor in general usage. DRAWBAR PERFORMANCE All engine adjustments are the same as those used in the belt or power take-off tests. If the manufacturer specifies a different rated crankshaft speed for drawbar operations, then the position of the manually operated governor control is changed to provide the high-idle speed specified by the manufacturer in the operating instructions. Varying Power and Fuel Consumption With Ballast. The varying power runs are made to show the effect of speed-control devices (engine governor, automatic transmissions, etc.) on horsepower, speed and fuel consumption. These runs are made around the entire test course with has two 180 degree turns with a minimum radius of 50 feet. The drawbar pull is set at 3 different levels as follows: (1) as near to the pull a maximum power as possible and still have the tractor maintain the travel speed at maximum horsepower on the straight sections of the test course; (2) 75% of the pull at maximum power; and (3) 50% of the pull at maximum power. Prior to 1958, fuel consumption data (10 hour test) were shown only for the pull obtained at maximum power for tractors having torque converters and at 75% of the pull obtained at maximum power for gear-type tractors. Maximum Power With Ballast. Maximum power is measured on straight level sections of the test course. Data are shown for not more that 12 different gears or travel speeds. Some gears or travel speeds may be omitted because of high slippage of the traction members or because the travel speed may exceed the safe-limit for the test course. The maximum safe speed for the Nebraska Test course has been set at 15 miles per hour. The slippage limits have been set at 15% and 7% for pneumatic tires and steel tracks or lugs, respectively. Higher slippage gives widely varying results. Maximum Power Without Ballast. All added ballast is removed from the tractor. The maximum drawbar power of the tractor is determined by the same procedure used for getting maximum power with ballast. The gear (or travel speed) is the same as that used in the 10-hours test. Varying Power and Travel Speed With Ballast. Travel speeds corresponding to drawbar pulls beyond the maximum power range are obtained to show the “lugging ability” of the tractor. The run starts with the pull at maximum power; then additional drawbar pull is applied to cause decreasing speeds. The run is ended by one of three conditions; (1) maximum pull is obtained, (2) the maximum slippage limit is reached, or (3) some other operating limit is reached

    Examining the Predictive Validity of Gre Scores on Doctoral Education: Students' Success and Methodology Choices in the Dissertation Process

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    This study examines how GRE scores can be used to better understand Education doctoral candidates\u27 methodology choices for the dissertation as well as their persistence behaviors. Candidates\u27 of one online doctoral education program were examined. Results of a MANOVA suggested that there is no difference in GRE scores based on doctoral candidates\u27 choice of methodology. Although GRE scores did not differ based on methodology choice, results of the regression analysis indicated that the linear combination of candidates\u27 verbal reasoning scores, quantitative reasoning scores, writing scores, and methodology choices accounted for significant variability in the number of semesters it took for them to complete their dissertations. The GRE writing score and methodology choice were the strongest predictors of time to completion
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