BACKGROUND Nursing is naturally a stressful job. Stress in nurses can cause depression, isolation from patients, absence and decrease in their qualification. This study aimed to determine the causes of job stress in nurses of Kashan, Iran. MATERIALS AND METHODS In this cross-sectional study, 189 nurses from Kashan hospitals of different wards were studied. The information collection tool was ...

Background & Aim: In recent years, Iran and other countries pay special attention to side effects of chemical plants. This interest in plants and their derivatives leads to business of medicinal plants. In Caspian region, in forestry projects there are many plant species with medicinal uses from which the locale indigenous used due to traditional experience without any especial processing in pa...

BACKGROUND Access to health care is a particular concern given the important role of poor access in perpetuating poverty and inequality. South Africa's apartheid history leaves large racial disparities in access despite post-apartheid health policy to increase the number of health facilities, even in remote rural areas. However, even when health services are provided free of charge, monetary an...

Sampling was done largely in the Dutch Kempen region located south-east of Eindhoven and north to a complex of several large zinc smelting works. Some samples were taken about 10 km north to this region in order to include data on less polluted sites. All sites were situated in either grassland or heathland on sandy podzolic soil. Thirty-one sites were sampled in total, mainly along transects o...

For a developing country, South Africa has a relatively extensive road and rail network. The approximately 264 000 km of roads and 20 000 km of rail network (30 600 km of tracks) have largely been built and paid for by previous generations and represent assets of enormous value for Southern Africa. The optimum use, management, maintenance and expansion of these networks are crucial for economic...

BACKGROUND Few studies in South Africa have investigated the exposure of asthmatic learners to indoor and outdoor air pollution at schools. This study compared outdoor PM10 and SO2 exposure levels in exposed (1-2 km from gold mine dumps) and unexposed schools (5 km or more from gold mine dumps). It also examined exposure of asthmatic children to indoor respirable dust at exposed and unexposed s...

Humpback whale seasonal migrations, spanning greater than 6500 km of open ocean, demonstrate remarkable navigational precision despite following spatially and temporally distinct migration routes. Satellite-monitored radio tag-derived humpback whale migration tracks in both the South Atlantic and South Pacific include constant course segments of greater than 200 km, each spanning several days o...

introduction: there are limited reports about selenium status in major thalassemia patients. the aim of this study is evaluation of selenium status in patients with major thalassemia south east of iran with large sample size and wide range of age. this study compared selenium status with other sites of the world. methods: in this study 369 cases that had major thalassemia for more than 5 years ...

[1] Two classes of natural solid media, glacial ice and salt domes, are under consideration as media in which to deploy instruments for detection of neutrinos with energy 10 eV. Though insensitive to 10 to 10 eV neutrinos for which observatories (e.g., AMANDA and IceCube) that utilize optical Cherenkov radiation detectors are designed, radio and acoustic methods are suited for searches for the ...