نتایج جستجو برای: water stresss

تعداد نتایج: 550740  

Journal: :تحقیقات نظام سلامت 0
حسن نان بخش دانشیار، گروه بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی ارومیه، ارومیه، ایران. امیر محمدی دانشجوی کارشناسی ارشد، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. افشین ابراهیمی استادیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: nitrate and nitrite compounds are considered as groundwater’s contamination factors, which in recent years, their densities have been growing in these resources. this study was conducted aiming to measure nitrate and nitrite density in drinking water wells in villages around the industrial estate, city of orumieh, and to compare them to the approved standards. methods: this was a de...

Journal: :health scope 0
hooshyar hossini department of environmental health, tarbiat modares university, tehran, ir iran abbas rezaee department of environmental health, tarbiat modares university, tehran, ir iran; department of environmental health, tarbiat modares university, tehran, ir iran. tel: +98-2182883575, fax: +98-2182883575

conclusions the results of this study show that it is possible to remove nitrate, and its intermediates from waste water. regarding the desirability of the process, the field scale study is proposed. results the results showed that by applying electric current of 0.14 a for 120 minutes, the nitrate content would reduce down to 97%. the obtained r2 for the nitrate removal model was higher than 0...

Journal: :اقتصاد و توسعه کشاورزی 0
موسوی موسوی مبصری مبصری اکبری اکبری

abstract in present study, it has been studied to oprimize culture pattern in water consumption reduction and increase in income by use of collected data from kazeroon agriculture organization and forign commercial statistical annals and use of linear planning model due to simplicity and lts application, and to apply in water resources management. the purpose of this study had been to edit one ...

Journal: :international journal of occupational and environment medicine 0
sr mousavi medical toxicology research center, department of clinical toxicology, school of medicine, mashhad university of medical sciences, mashhad, iran m balali-mood medical toxicology research center, department of clinical toxicology, school of medicine, mashhad university of medical sciences, mashhad, iran b riahi-zanjani medical toxicology research center, department of clinical toxicology, school of medicine, mashhad university of medical sciences, mashhad, iran h yousefzadeh department of cellular and molecular immunology, mashhad university of medical sciences, mashhad, iran m sadeghi medical toxicology research center, department of clinical toxicology, school of medicine, mashhad university of medical sciences, mashhad, iran

background: contamination of water by toxic chemicals has become commonly recognized as an environmental concern. based on our clinical observation in mashhad, northeastern iran, many people might be at risk of exposure to high concentrations of toxic heavy metals in water. because wastewater effluents as well as water wells have been commonly used for irrigation over the past decades, there ha...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم طبیعی 1386

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران - دانشکده حقوق و علوم سیاسی 1386

چکیده ندارد.

Journal: :journal of research in health sciences 0
manoj sharma hannah priest catalano vinayak k. nahar vimala c. lingam paul johnson m allison ford

background: a substantial proportion of college students to not drink enough water and consume sugar-sweetened beverages (ssbs). consumption of ssbs is associated with weight gain, obesity, type 2 diabetes mellitus, dental carries, and increased risk for cardiovascular disease. hence, the purpose of this study was to use the multi-theory model (mtm) in predicting initiation and sustenance of pl...

Journal: :آب و خاک 0
راضیه خلیلی راد سیدخلاق میرنیا حسینعلی بهرامی

abstract plant roots absorb water and minerals from soil solution. plant production is a function of root distribution and its activity in soil. by increasing root density in soil unit volume, roots absorb more water and minerals. this implies that knowledge of root development is an important factor for crop production. to determine the most suitable amount of water for the maximum development...

Journal: :journal of tethys 0

today, saving and storing water are among the most critical and important issues which have attracted the world's attention. history of storing water in the form of ghanat and water reservoir by iranians goes back to ancient times. studies on this field show that benefiting from underground dams was one of the methods employed for exploiting water in past times. in countries like iran, due...

Journal: :international archives of health sciences 0
mostafaii gh.r. “social determinants of health research center” and “environment health department, public health faculty”, kashan university of medical sciences, kashan, iran miranzadeh m.b. no. 1, shabnam 4 alley, police square, kashan, iran khodadadi r. environmental health department, health faculty, kashan university of medical sciences, kashan, iran iranshahi l. environmental health department, health faculty, kashan university of medical sciences, kashan, iran alinejad a. environmental health department, health faculty, shahid beheshti university of medical sciences, tehran, iran hakimi n. environmental health department, health faculty, kashan university of medical sciences, kashan, iran

aims: regarding water as the main source of brio, not only its quantity and being availability is vital, but also its quality must be considered. this study was done in order to determine the correlation between physicochemical bod5 and microbiological parameters (fc and tc) in the kashan university of medical sciences wastewater effluent of activated sludge system.  materials & methods: this d...

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