نتایج جستجو برای: northern

تعداد نتایج: 112044  

M Pavlović M Stojković P Simonović V Simić,

Diet of adult pikeperch Sander lucioperca, Eurasian perch Perca fluviatilis, northern pike Esox lucius and European catfish Silurus glanis as top predators in aquatic ecosystems in Serbia was investigated during 2011, in order to understand their relationship to their prey and to investigate their food consumption, feeding and assimilation rate, cannibalism, and habitat segregation. Northern pi...

M Pavlović, M Stojković, P Simonović, V Simić,

Diet of adult pikeperch Sander lucioperca, Eurasian perch Perca fluviatilis, northern pike Esox lucius and European catfish Silurus glanis as top predators in aquatic ecosystems in Serbia was investigated during 2011, in order to understand their relationship to their prey and to investigate their food consumption, feeding and assimilation rate, cannibalism, and habitat segregation. Northern pi...

This study investigated cross-cultural differences in the privacy regulation and perception of crowding amongtwo Iranian sub-cultures (Kurdish and Northern women).The primary purpose of this study was to examine whether Northern and Kurdish women differed in their desired and achieved levels of privacy in parks. The second purpose of this study was to investigate the relationships between the d...

Journal: :Environmental Health Perspectives 1998
D J Tenenbaum

The top of the world may look pristine, but the Arctic environment and its inhabitants contain surprisingly high levels of heavy metals, persistent organic pollutants such as pesticides, and nuclear radiation. Although the Arctic has few significant pollution sources, the contaminants are swept northward on ocean currents and winds from industrial regions. Once contaminants arrive, low temperat...

ژورنال: سلامت و محیط زیست 2011
ادیب زاده, امیر, مسعودی نژاد, محمدرضا, چاوشی, بهنام,

Bachgrounds and Objectives: Oil, gas and petrochemical are known as important sources of air pollutants and emission of green house gases. About 99 percent of sulfur dioxide in the air is produced from human resources. Although several samples have been taken from industries and refineries' output by environmental experts and private companies, but accurate assessment is not available based on ...

Arash Chaichi Nosrati, Omid lakzaie Azar Zohre Zohari Moafi

Objective: Aflatoxin G1 and G2, are highly toxic and carcinogenic secondary metabolites produced by Aspergillus flavus and Aspergillus parasiticus fungi sampling was done according to "CBS" instructions from indoor and outdoor stations. Methods: In HPLC measuring, we first purified our sample of all  Aflatoxins, We used imonoaffinty columns, Fina...

2003
P. C. ELWOOD I. R. McAULAY R. H. McLARIN J. PEMBERTON G. C. R. CAREY J. D. MERRETT

The association between the prevalence of both byssinosis and chronic bronchitis and the level of airborne dust was examined in workers in preparing departments in flax mills in Northern Ireland. A weak association between the dust level and byssinosis was found but not between the dust level and chronic bronchitis. It is suggested that the disparity of these associations may have arisen becaus...

Journal: :تحقیقات جغرافیایی 0
مجید منتظری گروه جغرافیای طبیعی دانشگاه اصفهان سید ابوالفضل مسعودیان گروه جغرافیای طبیعی دانشگاه اصفهان

most scientists believe that the phenomenon of global warming occurred, however, in the case of the occurrence of this phenomenon by some environmental scientists have raised doubts. they are questioning global warming by arguing that the temperature recorded at the weather stations cannot be representative of the occurrence of the temperature rise. because with the passage of time and the incr...

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