نتایج جستجو برای: environmental variables

تعداد نتایج: 665448  

2010
Rachel Bulman

This project takes an in-depth look at the environmental variables of freshwater lakes and how these variables affect the land value of lakeshore property. A GIS-based spatial and statistical analysis applied to lakeshore data from Crow Wing and Cass county Minnesota, provided the information necessary to establish general correlations applicable to Midwestern lakeshore property. The sample set...

Journal: :Ecology 2010
T Sattler D Borcard R Arlettaz F Bontadina P Legendre M K Obrist M Moretti

Spatially organized distribution patterns of species and communities are shaped by both autogenic processes (neutral mechanism theory) and exogenous processes (niche theory). In the latter, environmental variables that are themselves spatially organized induce spatial structure in the response variables. The relative importance of these processes has not yet been investigated in urban habitats....

Journal: :مرتع و آبخیزداری 0
مهسا قاضی مرادی کارشناس ارشد مرتعداری، دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان مصطفی ترکش اصفهانی استادیار دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان حسین بشری استادیار دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان محمد رضا وهابی استادیار دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان

in this study, the ability of generalized additive model (gam) for mapping potential distribution of ferula ovina boiss, and the description of species response curves to environmental variables were examined in fereidonshar region with area of 1000 square kilometers located in west of isfahan province. the presence and absence data of the species were collected from 278 sites (including 138 pr...

2008
HILARY COON GREGORY CAREY

Although the environment determines important individual differences in cognitive ability, most home environment variables that correlate with children's intelligence are more strongly associated with the pleiotropic effects of genes than with causal pathways of environmental transmission. Here, we demonstrate that community variables, a hitherto understudied set of constructs in research on co...

2013
Hong Qian

Understanding what drives the geographic variation of species richness across the globe is a fundamental goal of ecology and biogeography. Environmental variables have been considered as drivers of global diversity patterns but there is no consensus among ecologists on what environmental variables are primary drivers of the geographic variation of species richness. Here, I examine the relations...

Carbon dioxide (CO2) is the foremost gas, emanated from human activities, and the best-known greenhouse gas, contributing to global warming, thus its negative effect on human health cannot be disregarded. The current paper investigates the relation between environmental quality variables, socio-economic factors, and human health from 1960 to 2014 in China, using Auto Regressive Distribution Lag...

Journal: Pollution 2018

Carbon dioxide (CO2) is the foremost gas, emanated from human activities, and the best-known greenhouse gas, contributing to global warming, thus its negative effect on human health cannot be disregarded. The current paper investigates the relation between environmental quality variables, socio-economic factors, and human health from 1960 to 2014 in China, using Auto Regressive Distribution Lag...

Journal: :محیط زیست طبیعی 0
جابر شریفی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اردبیل، دانشجوی دورۀ دکتری موسسۀ تحقیقات گیاه شناسی آکادمی ملی علوم آذربایجان. عادل جلیلی استاد پژوهش موسسۀ تحقیقات جنگل ها و مراتع ایران. شاکر قاسم اف استاد پژوهش موسسۀ گیاه شناسی آکادمی ملی علوم جمهوری آذربایجان علیرضا نقی نژاد دانشیار گروه زیست شناسی، دانشکده علوم پایه، دانشگاه مازندران، بابلسر علی اکبر ایمانی استادیارگروه گشاورزی و گیاهان دارویی دانشگاه اسلامی آزاد اسلامی واحد اردبیل

the current study aims to ordinate ecological groups in the wetlands of northern and eastern slopes of the sabalan mountain and investigate their relationship with environmental variables. the location of wetlands was found using field surveys and satellite images. in total, 32 wetland sites were identified for the sampling purpose. 320 sample plots (relevé) were selected using the systematic-r...

Journal: :مدیریت فناوری اطلاعات 0
عباس منوریان دانشیار گروه مدیریت، دانشکدۀ مدیریت دانشگاه تهران، ایران امیر مانیان دانشیار گروه مدیریت فناوری دانشکدۀ مدیریت دانشگاه تهران، ایران مسعود موحدی استاد گروه مدیریت، دانشگاه اصفهان، ایران محسن اکبری استادیار گروه مدیریت، دانشگاه گیلان، ایران

abstract: this paper investigates the factors accelerating smes' adoption of e-commerce. initially we proposed a model that included three categories of factors including external environmental factors, internal environmental factors and technology specifications. in addition, we proposed ecommerce adoption stages in two levels of early adoption and institutionalization. based on surveying...

ali akbar heidari, Saeed Gandomkar Yaghowb Peyvastehgar

Perception and experience gained in the contemporary school could not help human beings' active learning. Totally, participation is the main element in active learning and thus, the active participation of students in the learning process is emphasized by education and learning in secondary schools. Given the importance of active learning, in this paper, the effective components in this type of...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید