نتایج جستجو برای: rrelated factors
تعداد نتایج: 1077896 فیلتر نتایج به سال:
BACKGROUND AND AIM: Dental caries is a multifactorial disease with a complex etiology. The social-behavioral factors play an important role in development of dental caries. This study aimed to evaluate the effect of social-behavioral factors on dental caries in 3-6-year-old children in Kerman, Iran.METHODS: This cross-sectional descriptive-analytical study was conducted on 857 children aged 3-6...
The diversity and distribution of the rotifers family Notommatidae was studied in the northwest, the south and the southwest of Iran. In total, 29 species were identified, of which, 25 are new records for the country. New records include the following species: Cephalodella forficata, C. cf. mus, C. vittata, C. ventripes, C. lepida, C. inquilina, C. gibboides, C. tincaformis , C. obvia, C. stere...
A two dimensional finite model with inclined crack at different crack angles are being analyzed in mixed mode condition using photo elasticity method for the determination of Stress Intensity Factors. The well-known Sih’s equation and three points deterministic approach is used for the determination of stress intensity factors. The effects of biaxial load factor, crack angle, size factors were ...
Background & Aims: Since at early pregnancy (<20 week) fetal thyroid gland is undeveloped, normal development of the Fetal brain is highly dependent on maternal thyroid hormones. There are excessive adverse perinatal outcomes associated with overt and subclinical hypothyroidism such as increase of Abortion, preeclampsia, placenta Abruption, LBW, preterm labor, impaired fetal neuropsychological ...
Background: Alopecia Areata (AA) is a recurrent non-scarring type of hair loss that can affect any hair-bearing area. Prognosis of AA is unpredictable and most patients experience more than one episode of hair loss. The purpose of this study was to investigate the relationship between the severity of AA with respect to age of onset, nail involvement, family history, number of recurrences and du...
According to the human's life style in this time and reduction of appropriate places for attendance of people¸ continuance of human's social life and improvement of human's social culture¸ people should be reconciled to the community complex by making essential bases. Social places belong to the all citizens and it defines by humans’ activities. So by making suitable potentials such as liveline...
background: identifying the predisposing factors of neck and shoulder complaints and finding solutions to avoid them could improve the occupational health condition of the nurses. in this study, we aimed at determining the role of psychological and physical occupational factors in developing neck and shoulder complaints among the participants. methods: this analytic cross-sectional study was ...
abstract background: to investigate the predisposing and precipitating risk factors for suicide ideations and suicide attempts in young and adolescent females, we tried to introduce a holistic model of suicidal behavior in young and adolescent girls. methods: this study is based on the survey studies and was cross-sectional. considering high rates of suicide attempts in provinces of iran, three...
دفن غیربهداشتی پسماند جامد شهری و اثرات منفی زیستمحیطی آن، موجب شده که روشهای علمی و صحیح، جایگزین روشهای سنتی شوند. یکی از مهمترین مراحل دفن بهداشتی پسماندها انتخاب مکان مناسب است، به طوری که اثرات نامطلوب زیستمحیطی، اجتماعی و اقتصادی حداقل شود. هدف از این مطالعه تعیین مکان مناسب جهت دفن پسماند جامد شهرهای شهرستانهای خرمشهر، آبادان، شادگان و ماهشهر است. عوامل تأثیرگذار در سه شاخص زیستمح...
guilan province is the biggest hazelnut producer in iran. over 70% of hazelnut production cost is due to its manual harvesting. therefore, study on all aspects of its cultivation mechanization is necessary to sustain its production. this study focused on identifying factors that affect the development of hazelnut harvesting mechanization in guilan province, iran, using a three-round delphi tech...
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