BACKGROUND Oral and dental health diseases can affect the general health of students. OBJECTIVES The aim of this study was to identify the predictors of oral and dental health behavior using the health belief model (HBM) in female students in Teheran, Iran. PATIENTS AND METHODS This was a cross-sectional study framed by the HBM, including 400 female students living in district 5 of Tehran, ...

There are many sources of error in counting votes: the apparent winner might not be the rightful winner. Hand tallies of the votes in a random sample of precincts can be used to test the hypothesis that a full manual recount would find a different outcome. This paper develops a conservative sequential test based on the vote-counting errors found in a hand tally of a simple or stratified random ...

In this article, we propose compromise allocations for multivariate stratified random sampling using the auxiliary attributes under non-response. We modified extended lexicographic goal programming technique and compared it with fuzzy goal programming and value function technique. We addressed the problem of compromise allocation when the auxiliary information is in the form of an auxiliary att...

We have developed a new technique to characterize the multi-line emission from molecular clouds using statistical sampling. Our method uses available extinction maps select relatively small sample of cloud positions that cover full range column densities in cloud, and can be observed with only modest investment telescope time. Here we present first results applying this Perseus nearby star-form...

the study investigated secondary school students' environmental awareness in india and iran. nine hundred and ninety-one students were selected through the stratified random sampling technique from 103 secondary schools of mysore city (india) and tehran city (iran). subjects consisted of 476 boys and 515 girls. they were assessed using the environment awareness ability measure (eaam). resu...

this research was done with the aim of analyzing the factors that influence the professional development of agricultural faculty members. methodologically, this explanatory research was carried out through survey method. the population of the research consisted of agricultural faculty members of iran universities (n=1190). using random stratified sampling method, 120 faculty members were select...

Sensitivity analysis is a key part of a comprehensive energy simulation study. Monte-Carlo techniques have been successfully applied to many simulation tools. Several sampling techniques have been proposed in the literature; however to date there has been no comparison of their performance for typical building simulation applications. This paper examines the performance of simple random, strati...