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تعداد نتایج: 4229117 فیلتر نتایج به سال:
Background: Acute drug poisoning remains an important public health problem and represents the second most frequent accidental disease in children. In this study, we identified epidemiological and clinical features of children admitted for acute drug poisoning and related factors associated with suicidal poisoning. Methods: We conducted a retrospective study in the Department of Pediatrics, ...
the present study was an attempt to compare the effect of peer metalinguistic corrective feedback on elementary and intermediate efl learners speaking ability to see which level benefits more from this type of feedback. to this end, 117 female efl learners at grade 3, al-zahra high school in kermanshah, iran were non-randomly chosen. the homogeneity of the participants was attained through a pi...
this study investigated (a) the learners’ existing reading strategy repertoire, (b) the effect of instruction in reading strategies on learners’ strategic performance, and (c) the effect of explicit instruction in top-down reading strategies on reading comprehension ability of intermediate learners. the study was conducted with 40 intermediate efl learners in two groups of experimental and cont...
OBJECTIVE To quantify risk factors for venous thromboembolism during pregnancy and the puerperal period. DESIGN In a nationwide prospective cohort study we followed pregnant and puerperal women in Denmark from 1995 to 2009 for venous thromboembolism. Information on risk factors and confounders was retrieved from national registries. The diagnosis of venous thromboembolism was confirmed throug...
This study presents measurement of changes using image processing techniques, Digital Shoreline Analysis System (DSAS) and Landsat images along the coast of the island of Djerba, Tunisia. Three regions of this island were selected: Rass Errmall, El Kastil and Aghir. Accretions as well as erosion processes were observed in the study areas between 1984 and 2009. The average of the erosion was aro...
background: investigation of tuberculosis (tb)-specific indices including prevalence of tb, mortality of tb cases excluding hiv, hiv/tb mortality, incidence of tb (all forms), hiv/tb incidence as well as case detection and related trends is a crucial step in evaluation of program performance and strategies success. besides, estimating the number and time of change points for tb incidence can he...
this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...
eremurus and forage are main by-products in the khazangah rangelands of makoo region. eremurus is harvested and used by local people in a period of 30 days during the spring in this region. at this study, eremurus and forage have been evaluated financially and the data were obtained through field work using unstructured interviews as well as direct observation. the harvested eremurus value was ...
Children with eczema and sensitization to foods are recommended skin care and, if food allergy is proven by challenge, an elimination diet. For most children the diet period is transient, but the process behind tolerance development and the influence of decreased allergen exposure is not fully known. The aim of the study was to investigate the effect of elimination diet on serum and salivary an...
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