Purpose: Fiber carbon is the most common material used in treating couch as it causes less beam attenuation than other materials. Beam attenuation replaces build-up region, reduces skin-sparing effect and causes target volume under dosage. In this study, we aimed to evaluate beam attenuation and variation of build-up region in 550 TxT radiotherapy couch.Materials and Methods: In this study, we ...

the purpose of this study was to investigate the effect of farmers' knowledge and attitude regarding farmer field school (ffs) on biological control against rice stem borer in mazandaran province. the population of the study included all farmers residing in three villages of kohnedan, rangrizmahalleh and aliabad (n=121). a questionnaire was developed from reviewed literature. the content a...

OBJECTIVE This qualitative study used a case study approach to explore the potential of farm-to-school programs to simultaneously improve children's diets and provide farmers with viable market opportunities. DESIGN Semistructured interviews were the primary data collection strategy. SETTING Seven farm-to-school programs in the Upper Midwest and Northeast regions of the United States. PAR...

The first time I heard about Dr. Paul Farmer was when he was asked to give the commencement speech at Boston College in 2005. As a newcomer to Boston that year, I was not yet familiar with Dr. Farmer's educational history in the city (earning a Ph.D. and M.D. at nearby Harvard University) or with his endeavors creating Partners in Health (PIH) many years before. A friend was kind enough to give...