background: a recent study at the maroua provincial hospital revealed that hypertension in pregnancy was the first cause of maternal death, representing 17.5% of the 63 maternal deaths recorded between 2003 and 2005. knowing little about the causes, this study was to identify the possible risk factors for hypertensive disorders in pregnancy. methods: this case-control study was-done at the maro...

objective: psychiatric hospitalization of patients imposes heavy burdens on caregivers, but little is known about this issue in iran. the present cross-sectional study aimed to investigate the risk factors associated with psychiatric hospitalization of patients with schizophrenia who were the regular clients for the educational programs of the iranian society for supporting individuals with sch...

background: the use of psychology in the workplace and accurate scientific findings in this field, in addition to reducing work-related diseases, can promote the performance of employees. nursing is a stressful job and can be the cause of physical and mental disorders. this study investigates the relationship of personality traits and demographic factors with occupational stress. materials and ...

purpose: to determine the prevalence and risk factors for retinopathy of prematurity (rop) in high risk premature infants admitted to nicu wards in isfahan from 2003 to 2008. methods: in this retrospective case series, 604 records of high risk infants were reviewed in terms of gestational age, birth weight, oxygen supplementation, delivery method, history of consanguineous marriage, single or m...

In this study for the first time a new description of compressibility factor is rendered based on the virial expansion. The compressibility factor as a function of M-factor is qualitatively and quantitatively expressed. At first, we present how may the third, fourth and higher order virial coefficients be logically ignored in order to simplify the virial equation. The results show, wh...

The aim of the current study was twofold: (1) to validate the internal structure of the general English (GE) section of the university entrance examination for Ph.D applicants into the English programs at state universities in Iran (Ph.D. UEE), and (2) to examine the factor structure invariance of the Ph.D. UEE across two proficiency levels. Structural equation modeling (SEM) was used to analyz...

background: maternal and neonatal factors could help determine the potential incidence of hyperbilirubinemia. in this study, we aimed to identify the relationship between the severity of jaundice in newborns and maternal and neonatal factors. methods: this descriptive, cross-sectional study was conducted in 2014. icteric newborns, admitted to qods and kowsar teaching hospitals in qazvin, iran w...