نتایج جستجو برای: and involve environmental

تعداد نتایج: 16868438  

Background: Aluminum (Al) exposure is among the environmental risk factors that may involve in the pathogenesis of neurodegenerative diseases. Oxidative stress has a critical role in the Al-induced toxicity. Saffron is a plant with potent radical scavenging and anti-oxidative properties. This investigation was designed to evaluate the possible protective effects of saffron extract (SE) on alumi...

Journal: :Trends in microbiology 2009
Rebecca J Gast Robert W Sanders David A Caron

Protistan species are found in almost every environment on our planet, and have adapted in many ways to survive and thrive under dramatically different conditions. Some of the most diverse adaptations involve symbiotic relationships with prokaryotes. Described symbioses primarily involve heterotrophic protists, including ciliates, Rhizaria (amoebae, foraminifera, radiolaria) and flagellate taxa...

Ratika Komal, Simran Kashyap

Green synthesis of nanoparticles using plants as sources exhibiting superiority over the physical and chemical methods that are expensive and can involve the use of toxic, hazardous chemicals, which may pose biological and environmental risks. In present study silver nanoparticles were synthesized in single step by biological method using extracts of Actinidia deliciosa paste as reducing and st...

Journal: :journal of rangeland science 2011
d. noorollahi h. lashkari m. amirzade gh. azizi s. sharafi

the isotopic documents of lake deposition are suitable potential means for studyingthe intercontinental, environmental and climatic conditions. in order to study theenvironmental and climatic conditions of parishan area in fars province in holocene, a corewas taken with the length of 2m from the parishan lake sediment. from this core, kernel timeseries was provided from documents of carbon and ...

2018
Jingmei Dong Su Zhang Li Xia Yi Yu Shuangshuang Hu Jingyu Sun Ping Zhou Peijie Chen

It is an extremely urgent problem that physical fitness promotion must face not only the increasing air pollution but also the decline of physical activity level of children and adolescents worldwide at present, which is the major reason that forms an inactive lifestyle and does harm to adolescents' health. Thus, it is necessary to focus on the exposure factor in environmental health risk asses...

اکرم جعفرزاده, , هاله برومند, , هایده هاشمی زاده, ,

  Background: The factors involve in Leukemia are not fully understood. However, research has shown the relationship between this disorder and some risk factors. The aim of this study was to determine risk factors involved in acute lymphoblastic leukemia and its most prevalent clinical manifestations in children residing in Khorasan province.   Materials and Methods: It was a case – control stu...

ژورنال: طلوع بهداشت یزد 2016
ابراهیمی, اصغر, احرامپوش, محمد حسن, درخشان, زهرا, صدیقی خویدک, سمانه, فرامرزیان, محمد,

Introduction:Considering the lack of agricultural lands and the loss of products by pests, utilization of pesticides like atrazine has increased. Due to low vapor pressure, high half-life, and high mobility, this herbicide results in pollution of different ecosystems. In regard with its toxicity, US Environmental Protection Agency has ranked atrazine in III class. Due to its potential capacity ...

Introduction: Detection of Cryptosporidium and Giardia parasites in water samples is usually performed by US Environmental Protection Agency 1623 method. Nevertheless, the USEPA1623 method still need improvement, to prevent and control the water borne parasitic disease. Therefore, we undertook the present study. Materials and methods: Totally 48 surface water samples were collected. Four sampl...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید