Knowledge, Attitude and Perceptions of Village Residents on the Health Risks Posed by Kadhodeki Dumpsite in Nairobi, Kenya.

This study sought to assess the knowledge, attitude and perceptions of the residents of Kadhodeki village on the health risks posed by the Kadhodeki dumpsite. Using households as units of sampling, a descriptive cross sectional survey was carried out in June 2012. Random data were collected using a face-to-face researcher administered structured questionnaire and 323 participants were interviewed. Chi square was used to determine the association between the different variables. Findings indicate that residents possess a significantly low knowledge and a positive attitude (χ2 (1) = 224.03, p < 0.01; χ2 (1) = 8.697, p < 0.01) towards the Kadhodeki dumpsite. They were however no differences in risk perceptions. Participant’s age, duration one had lived in the village and their level of education, were proxy measures of knowledge, attitude and perception. Odds ratio analysis indicates that age and duration did not influence participant’s knowledge, attitude or perceptions. Rudimentary however, education accounted for a non significant 28% variation in respondents’ attitude towards the health risks of the dumpsite (OR= 1.282; CI 0.828- 1.997). Also adequate education significantly accounted for 67% variation in respondents’ health risk perception (OR= 1.671; CI 1.304-2.140). This study would recommend that the ministry of Health come up with health education programmes for the general population on the dangers of uncontrolled waste disposal sites

Costs and cost-effectiveness of malaria control interventions - a systematic review

<p>Abstract</p> <p>Background</p> <p>The control and elimination of malaria requires expanded coverage of and access to effective malaria control interventions such as insecticide-treated nets (ITNs), indoor residual spraying (IRS), intermittent preventive treatment (IPT), diagnostic testing and appropriate treatment. Decisions on how to scale up the coverage of these interventions need to be based on evidence of programme effectiveness, equity and cost-effectiveness.</p> <p>Methods</p> <p>A systematic review of the published literature on the costs and cost-effectiveness of malaria interventions was undertaken. All costs and cost-effectiveness ratios were inflated to 2009 USD to allow comparison of the costs and benefits of several different interventions through various delivery channels, across different geographical regions and from varying costing perspectives.</p> <p>Results</p> <p>Fifty-five studies of the costs and forty three studies of the cost-effectiveness of malaria interventions were identified, 78% of which were undertaken in sub-Saharan Africa, 18% in Asia and 4% in South America. The median financial cost of protecting one person for one year was $2.20 (range$0.88-$9.54) for ITNs,$6.70 (range $2.22-$12.85) for IRS, $0.60 (range$0.48-$1.08) for IPT in infants,$4.03 (range $1.25-$11.80) for IPT in children, and $2.06 (range$0.47-$3.36) for IPT in pregnant women. The median financial cost of diagnosing a case of malaria was$4.32 (range $0.34-$9.34). The median financial cost of treating an episode of uncomplicated malaria was $5.84 (range$2.36-$23.65) and the median financial cost of treating an episode of severe malaria was$30.26 (range $15.64-$137.87). Economies of scale were observed in the implementation of ITNs, IRS and IPT, with lower unit costs reported in studies with larger numbers of beneficiaries. From a provider perspective, the median incremental cost effectiveness ratio per disability adjusted life year averted was $27 (range$8.15-$110) for ITNs,$143 (range $135-$150) for IRS, and $24 (range$1.08-$44.24) for IPT.</p> <p>Conclusions</p> <p>A transparent evidence base on the costs and cost-effectiveness of malaria control interventions is provided to inform rational resource allocation by donors and domestic health budgets and the selection of optimal packages of interventions by malaria control programmes.</p

Capture and release of traveling intrinsic localized mode in coupled cantilever array

A method to manipulate intrinsic localized mode (ILM) is numerically discussed in a nonlinear coupled oscillator array, which is obtained by modeling a microcantilever array. Prior to the manipulation, coexistence and dynamical stability of standing ILMs are first investigated. The stability of coexisting ILMs is determined by a nonlinear coupling coefficient of the array. In addition, the global phase structure, which dominates traveling ILMs, is also changed with the stability. It makes possible to manipulate a traveling ILM by adjusting the nonlinear coupling coefficient. The capture and release manipulation of the traveling ILM is shown numerically