background: in people over 50, one out of three women and 12 men experience osteoporosis. youth lifestyle plays an essential role in increasing bone mass and preventing osteoporosis in old ages. thus, lifestyle changes during adolescence could cause the prevention of osteoporosis in older age. this study therefore conducted to investigate the lifestyle of female high school students in relation...

social anxiety disorder is a debilitating and chronic illness characterized by persistent fear of one or more social or performance situations, with a relatively high lifetime prevalence of 7% to 13% in the general population and various factors are involved in its creation. one of the factors that affect this disorder is personality trait. the present study compared the personality trait in ad...

background: in megavoltage radiotherapy rooms, ordinary concrete is usually used due to its low construction costs, although higher density concrete are sometimes used, as well. the use of high-density concrete decreases the required thickness of the concrete barrier hence, its disadvantage is its high cost. in a nuclear reactor, neutron radiation is the most difficult to shield. a method for p...

creating a safe of health care system requires the establishment of high reliability organizations (hro s ), which reduces errors, and increases the level of safety in hospitals. this model focuses on improving reliability through higher process design, building a culture of accreditation, and leveraging human factors. the present study intends to determine the readiness of hospitals for the es...

background:  pregnancy in a woman's life is a unique experience. but due to high risk pregnancy and the need to rest in bed, the women and her family are faced with different challenges and needs. the inability to manage these needs will result in crisis and understanding the needs of pregnant women during bed rest is essential to provide comprehensive health care for them. so this qualita...

introduction : methotrexate (mtx) is an anti folate drug that used in malignant and non malignant patients. the usage of high dose methotrexate was limited to patients with: osteogenic sarcoma, ewing sarcoma and lymphoma. the aim this study was to determine the toxicity or side effects of very high dose methotrexate (8-10 gr/m 2 /cycle). this study is the first study in iranian patients and one...

among 14,102 patients admitted in teaching hospitals of the isfahan medical school, whose records were studied, 2,122 or 15.4% of patients had high blood pressure. the most common reason for blood pressure in this group was diseases of the kidney and for those, glomerolonephritis and pilonephrititis were important causes. among patients under 30 years old, high blood pressure was twice as commo...

higher solid contents (20 % and 40 %) nanocomposites of poly (styrene-co-butyl acrylate) including higher content of cloisite 30b (7 wt% and 10 wt %) were prepared via miniemulsion polymerization. stability of the final latexes proved outstanding combination of polymerization procedure and surfactants. morphological studies revealed by tem, sax and xrd showed three structures of core-shell, arm...

the effects of aflatoxin (af) (0.0 and 0.5m g kg-1) and high grade sodium bentonite (hgsb) (5, 7.5 and 10 g kg-1) were tested in an in vivo study including 8 dietary treatments with three replicates of 14 birds per diet per replicate, using a total of 336 broiler chicks up to five weeks. results showed that chicks receiving af contaminated feed had significantly (p≤ 0.05) suppressed body weight...