نتایج جستجو برای: ecologic factors

تعداد نتایج: 1079102  

Journal: :journal of rangeland science 2011
negar davari mohammad hassan jouri ali ariapour

the diversity and richness of species are of important components to evaluate the health of ecologic system of rangelands. this research was conducted to investigate the biodiversity in riparian and neighboring areas via comparison of indices in javaherdeh rangeland of ramsar. plot-transects was randomly used to estimate diversity, richness, dominance, and evenness indices in two regions. multi...

Journal: :Cadernos de saude publica 2002
Sergio Koifman Rosalina Jorge Koifman Armando Meyer

The observation of reproductive disturbances in humans and in the wildlife has been reported in the last decade in different countries. Exposure to different chemicals possibly acting in the endocrine system or endocrine disruptors, including pesticides, has been a hypothesis raised to explain the observed changes. This paper aimed to present results of an epidemiological ecologic study carried...

Journal: :Pedagogical research 2023

The COVID-19 pandemic compelled teachers to grapple with the challenge of distance learning and remote communication pre-school children their parents. This study examines how student-teachers perceived teacher’s relations parents during first lockdown. is based on a mixed-method, quantitative qualitative, research design among ten third-year in Israel. 56% reported that lockdown were strengthe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید