نتایج جستجو برای: prevalence of quantity
تعداد نتایج: 21175850 فیلتر نتایج به سال:
During flood events, river topography and fluvial habitats can change drastically, potentially affecting the ecological status. In case of multiple floods, whether each single event modifies habitat characteristics in same direction or not, is still an open question. We gathered high quality topographical data one braided Alpine reach before, between after floods. Considering full dynamics hydr...
BACKGROUND Recent research suggests that adding a quantity/frequency alcohol consumption measure to diagnoses of alcohol use disorders may improve construct validity of the diagnoses for Diagnostic and Statistical Manual of Mental and Behavior Disorders (DSM-V). This study explores the epidemiological impact of including weekly at-risk drinking (WAD) in the DMS-IV diagnostic definition of alcoh...
Many extension of the newsboy problem have been solved in the literature. One of those extensions solves a newsboy problem with stochastic initial inventory, earlier extensions have focused on quantity discounts offered by suppliers. An important practical extension would address a combination of the two pervious extensions. In this paper we consider a newsboy problem in which the suppliers off...
A series of 100 Zimbabwean children aged between 5 months and 13 years with culture positive typhoid fever is presented. The disease was found to be fairly mild with a low prevalence of complications, and no patient in the series died. Possible explanations for the relative mildness of typhoid in this paediatric population are discussed.
OBJECTIVES To understand the situation of child leprosy patients in the low prevalence situation pertaining in China. METHOD A retrospective survey by questionnaire was carried out in all 32 provinces of mainland of China in 2011. All data concerning child cases detected from January 2005 to December 2009 were collected by professional health workers working at county level. RESULTS During ...
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