Background and Aim: Disinfection of dental impression materials can alter their dimensional stability, which in turn can affect the accuracy of dental casts. This study aimed to determine the effect of three disinfectants on the dimensional changes of ir-reversible hydrocolloid impression materials and addition silicones. Materials and Methods: Forty alginate and 40 addition silicone impressio...

results local level of primary health care system in iran had mechanical structure, but in contextual dimensions the results showed different types. there was a significant relationship between structural and contextual dimensions (r = 0.642, p value < 0.001). goals and culture dimensions had strongest effects on structural dimensions. background in recent years, family physician plan was estab...

patients and methods in this study, 250 high school students in shiraz were selected using random cluster sampling. the samples were analyzed using the food frequency questionnaire (ffq) and the general health questionnaire (ghq-28). results according to the findings, parental mental health explains 22% of the variance in children’s mental health, so that in simultaneous regression, physical di...

prioritizing women's health helps achievement of the 4(th) and 5(th) goals of millennium development program. this study aimed to investigate association between social determinants of health and women's health of reproductive age.this population-based cross-sectional study, using multi-stage sampling procedure was conducted on 770, 15 to 49-year-old women residing in any one of the 22 municipa...

nowadays, the concept of organizational citizenship behavior (ocb) has attracted managers and researcher’s notice in scientific groups. emphasizing on these behaviors can be one of the ways that causes effectiveness in organization, that hasn’t been much emphasized on to date. this research aimed to survey the relationship between ocb and its dimensions and staff organizational commitment in te...

Statistical NLP inevitably deals with a large number of rare events. As a consequence, NLP data often violates the assumptions implicit in traditional statistical procedures such as significance testing. We describe a significance test, an exact conditional test, that is appropriate for NLP data and can be performed using freely available software. We apply this test to the study of lexical rel...