original article   training interventions are regarded as essential managerial strategies in various organizations. the present study investigated managerial interventions in training based on deming model and their effectiveness to decrease the rate of unsafe behaviors of workers. it was a case study, conducted in a rolling industry and a descriptive- analytic research, done periodically durin...

Hundreds of genes, when manipulated, affect the lifespan of model organisms (yeast, worm, fruit fly, and mouse) and thus can be defined as longevity-associated genes (LAGs). A major challenge is to determine whether these LAGs are model-specific or may play a universal role as longevity regulators across diverse taxa. A wide-scale comparative analysis of the 1805 known LAGs across 205 species r...

BACKGROUND South Africa has a large domestically funded HIV programme with highly saturated coverage levels for most prevention and treatment interventions. To further optimise its allocative efficiency, we designed a novel optimisation method and examined whether the optimal package of interventions changes when interaction and non-linear scale-up effects are incorporated into cost-effectivene...

BACKGROUND Many ways of preventing HIV infection have been proposed and more are being developed. We sought to construct a strategic approach to HIV prevention that would use limited resources to achieve the greatest possible prevention impact through the use of interventions available today and in the coming years. METHODS We developed a deterministic compartmental model of heterosexual HIV ...

BACKGROUND Although a number of environmental and policy interventions to promote physical activity are being widely used, there is sparse systematic information on the most effective approaches to guide population-wide interventions. METHODS We reviewed studies that addressed the following environmental and policy strategies to promote physical activity: community-scale urban design and land...

BACKGROUND In psychodynamic psychotherapy, one of the therapists' techniques is to intervene on and encourage exploration of the patients' relationships with other people. The impact of these interventions and the response from the patient are probably dependent on certain characteristics of the context in which the interventions are given and the interventions themselves. To identify and analy...

objective :post traumatic stress disorder (ptsd) may be the first reaction after disasters. many studies have shown the efficacy of cognitive- behavioral therapy in treatment of post traumatic stress disorder. the main objective of this study is to evaluate the effect of group cbt in adolescent survivors of a large scale disaster (bam earthquake). methods: in a controlled trial, we evaluated th...

BACKGROUND Diarrhea remains a leading cause of mortality among young children in low- and middle-income countries. Although the evidence for individual diarrhea prevention and treatment interventions is solid, the effect a comprehensive scale-up effort would have on diarrhea mortality has not been estimated. METHODS AND FINDINGS We use the Lives Saved Tool (LiST) to estimate the potential liv...