objective: this study aimed to investigate the prediction of asthma control on the basis of perceived stress, locus of control, and self-efficacy in adult patients with asthma.  methods: this was a descriptive-correlative and cross-sectional study.the solecty of this study is all asthmatic patients in tehran. our sample consisted of 100 participants who were selected by purposeful sampling meth...

introduction: job stress is one of the main characteristics of modern life which is increasing and has been recognized as an important risk factor of cardiovascular diseases. the present study was conducted to determine the association between job stress at work environment and cardiovascular diseases. materials and methods: a number of 300 persons including 150 cases and 150 controls were cons...

to understand the effects of salinity stress on four different growth stages of sorghum, a greenhouse experiment with 10 treatments, considering all possible combinations of salinity stress and salt- free periods was carried out. the four growth stages for stress application included: emergence until growing point differentiation, growing point differentiation until half bloom, half bloom until...

background and objective: job stress can have a direct impact on the incidence of work-related injuries and unsafe behavior and the highest rates of occupational injuries are in the health professions. therefore, as we did not find any studies regarding the physician's assistants job stress; this research was performed to determine the relationship between job stress and occupational injuries a...

background: vitamin d deficiency may play a key role in the development of impaired glucose tolerance, type 2 diabetes mellitus (t2dm), and metabolic syndrome. several studies have shown that vitamin d has an antioxidant property. we aimed to investigate 25?hydroxy vitamin d (25[oh]d) levels in patients with t2dm and in nondiabetic healthy controls and to ascertain the impact of 25(oh)d levels ...

background and objectives: studies of the relationship between personal qualities and job consequences usually find poor and inconsistent correlations. it is suggested that the reason may lie in ignorance of some modifying factors mediating such relationship. the perceived control has attracted much attention as a candidate factor. this study aimed to examine the mediating role of the perceived...

there is little question anymore about the reality of post- traumatic stress disorder(ptsd) as a disorder. for some, this disorder progressively worsens over time and appears to affect nearly all aspects of life, including work, interpersonal relationships, physical health, and view of self. the severity of ptsd may lead to repeated hospitalizations over the years and may require ongoing outpat...

to evaluate the effects of drought stress and re-watering on nodal roots initiation and growth, two glasshouse experiments were conducted in commonwealth scientific and industrial research organization (csiro) in australia during 2008-2009. the experimental designs in both experiments were factorial in a randomized complete block design with two factors. first factor was drought stress and seco...