In order to quantitatively characterize the enhancement of hole mobility of strained silicon under different stress intensity conditions, changes of hole effective mass should be studied. In the paper, strained silicon under in-plane biaxially tensile strain based on (0 0 1) substrate and longitudinal uniaxially compressive strain along h1 1 0i are investigated thoroughly. By solving the Hamilt...

background: irritable bowel syndrome (ibs) was one of the most common functional gastrointestinal disorders. psychological treatments have been effective in reducing symptoms severity and increasing mental health and well-being of these patients to some extent. the aim of this study was to determine the effectiveness of cognitive – behavioral stress management training on symptoms severity and ...

Stress induced enhancement of electron mobility has primarily been attributed to the splitting of the conduction bands. However, experiments [1] have indicated that the mobility enhancement cannot solely be attributed to this effect, and a recent study has shown that a stress along the 〈110〉 direction leads to a change of the effective mass [2]. This work investigates the effect of the variatio...

background: job stress is one of the important issues in the health sector and its high effect on workers’ productivity. managerial skills can help organizations to improve employees’ effectiveness and reduce job stress. the present study investigated the relationship between employees’ job stress and managers’ professional skills. methods: this cross-sectional and correlation study was conduct...

in order to study and determine the most effective traits, drought tolerance indices and identify tolerant genotypes in terminal drought stress on the cowpea, an experiment was carried out based on an augment design in two separate conditions in the karaj farm, faculty of agriculture, tehran university in 2009. drought stress was imposed by cutting irrigation after flowering against normal irri...

OBJECTIVE To compare the effectiveness of group training of stress management with cognitive-behavioral therapy (CBT) in reducing depression, anxiety and stress perceived among HIV-positive men. METHODS Inthis semi-experimental study, three groups of HIV-positive men (CBT group, stress management group, and control group) including 15 patients in each group were compared regarding depression,...

kentucky bluegrass (poa pratensis l.) is one of the most widely used turfgrasses for home lawns, golf courses, parks, and athletic fields in temperate climates. oxidative stress caused by drought stress is a major limiting factor for grass cultivation in arid and semi-arid regions. the objective of this study was to investigate whether prohexadione-calcium (pro-ca) may play a role in promoting ...

abiotic stress such as cold and drought has adverse effects on plants growth and development. abiotic stress resistance is one of the most important goals in plant breeding. this goal can be achieved through transcription factor gene transfer to plants. recent studies show many successes in improving abiotic stress resistance by use of transcription factor gene transfer. the objective of the re...

objectives: present study is designed to investigate the effect of stress management training by using cognitive behavioral method on stress of mothers of children with oppositional defiant disorder. methods: the study was done in a quasi-experiment designed as pre-post-test with control group. the participants were 20 mothers of oppositional defiant disorder children, ages from 4 to7 years old...