نتایج جستجو برای: scale
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background: workplace safety has been a concern of workers and managers for decades. measuring safety climate is crucial in improving safety performance. it is also a method of benchmarking safety perception. objective: to develop and validate a psychometrics scale for measuring nurses' safety climate. methods: literature review, subject matter experts and nurse's judgment were used in items de...
purpose the present study investigated the psychometric properties of a malaysian adapted brunel mood scale. methods the questionnaire was administered to 355 young sport athletes with a mean age of 14.69+1.70 years. confirmatory factor analysis (cfa) and cronbach's alpha were used to determine the factorial validity and the internal consistency of the questionnaire respectively. results cfa re...
background: scaling and corrosion are the two most important indexes in water quality evaluation. pollutants are released in water due to corrosion of pipelines. the aim of this study is to assess the scale formation and corrosion of drinking water supplies in ilam city (iran). methods: this research is a descriptive and cross-sectional study which is based on the 20 drinking water sources in i...
injuries, especially traffic accidents are so important causes of death, disability, hospital expenses, economic damages to the society which world health organization selected them as the main subjects for investigation and research. we have done an epidemiologic study about trauma in guilan, a province in north of iran. this is a descriptive study carried out on patients with traumatic inju...
objectives: the aim of the current study was to determine the depression status of the elderly and it's related factors. methods & materials: this was a cross sectional study. sample unit was based on the elderly of isfahan city in 2007. 248 elderly aged 60 and older (125 men and 123 women) were selected randomly according to clusters related to the families that are under coverage of isfa...
background: migraine is a prevalent disease which is classified into two groups of migraine with aura and without aura. eighteen percent of women and 6.5 percent of men in united states have migraine headache. migraine headache is prevalent in all age groups but it usually subsides in adults above fifty. migraine has many risk factors such as stress, light, tiredness, special foods and beverage...
در مهندسی و صنعت برق، تبدیل انرژی الکتریکی از یک فرم به فرم دیگر توسط مبدل های قدرت امکان پذیر است. به طور کلی، محبوب ترین روش کنترل در مبدل های قدرت با توجه به ساختار کنترلی ساده، طراحی آسان و هزینه ارزان، کنترلر های متعارف خطی تناسبی- انتگرال گیر- مشتق گیر و یا تناسبی- انتگرال گیر ، می باشند. در طراحی کنترل کننده های خطی، معمولا فرض می گردد که پارامترهای مدل سیستم به خوبی مشخص شده اند. با این...
introduction: the present study aimed to investigate the psychometric properties of grasha-riechmann student learning styles scale. method: the participants included 1039 students (421 students in human and 618 students in technical sciences), selected through the stratified sampling method from tehran university. they answered the grasha-riechmann student learning style scale and the data was ...
conclusions following cabg, the most severity of pain was reported at surgical incision on time t2. pain began to decrease from the third day following the operation. age, sex and bmi along with operation-related factors such as duration of cbp or chest tube drainage may affect the pain pattern following cabg surgery. patients and methods the present study was conducted on 138 patients who unde...
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