background: multiple factors such as retirement, work disability, social rejection, physical illness and etc., have an impact on general health of the elders. one factor among others is the role of psychological variables. the study is intended to assess the effect of positive and negative perfectionism and type-d personality (distressed) on general health of the elders. methods: in this descri...

cigarette use and its predicting factors among male high school students moeini b* , allahverdipour h received: 25 april, 2010 accepted: 27 july, 2010 abstract background & aims: tobacco use among adolescents is one of the most important preventable problems that was known as a gateway drug to the use of other much more dangerous substances as marijuana and opium. etiology of tobacco use initia...

Our objectives were to test differences in protein synthesis and secretion by cultured oviducts and endomemum from Brahman and Holstein cows and the response of those tissues to in vitro heat shock. Explants of oviductal tissue obtained at estrus from Holstein (n = 5 ) and Brahman (n = 6 ) cows were cultured at a homeothermic (39°C) or heat shock (43°C) temperature. At 6 h, cultures were pulse-...

needs of human life from the beginning been an important factor we have been threatened by population growth, food security and human well- men of science and technology with a new plan maintain and improve their food security to make it work. in this investigation, meteorological data have been received from synoptic stations based on daily, monthly, and annually trend from iran meteorological...

one of the most ambiguous historical periods in iran is median era so that the median architecture has a lot of unknown aspects. noshijan hill in malayer city is one of the foremost historical zones of media where its main settlement includes a time period ranged from 750 to 650 bc. this zone has been explored by a british team headed by dr. david stronach; as a result, some of valuable constru...

a bstract background: nurses are at risk for symptoms of compassion fatigue (cf) and burnout (bo). social support plays an important role in predicting cf and bo. this study was performed to determine the prevalence of the symptoms of cf and bo and the role of perceived social support in predicting these symptoms in iranian nurses. materials and methods: using a correlational descriptive survey...

Allelopathy is one of the main factors limiting the plants growth. The present study investigated the effect of aqueous extract of leaves and fruit of Artemisia sieberi that is an important species for rangeland rehabilitation on seed germination and seedling growth of three alfalfa species (Medicago sativa cv. Nikshahri,‌ Medicago polymorpha and Medicago scutellata cv. Robinson) in laboratory ...

introduction: climate change is one of the most significant challenges in sustainable development that has negative effects on land and marine ecosystems. this phenomenon leads to imbalances that cause effects including hydrological changes, increased soil erosion, increased runoffs and reduced groundwater aquifer feeding, etc. effects of climate changes over the past decade have significantly ...

introduction livestock is a dynamic activity and a generating employment which after the oil industry has attracted the most investment and most importantly, it is tied with food security and health. also it is important in human nutrition as one of the main sectors of material production and milk protein. but production. in the livestock sector has some differences with other areas of manufact...