نتایج جستجو برای: biological and environment sciences iccebs

تعداد نتایج: 16914056  

2012
James E. Cloern Alan D. Jassby Jacob Carstensen William A. Bennett Wim Kimmerer Ralph Mac Nally David H. Schoellhamer Monika Winder

a U.S. Geological Survey, Menlo Park, California bDepartment of Environmental Science and Policy, University of California, Davis, California c National Environmental Research Institute, Aarhus University, Roskilde, Denmark dCenter for Watershed Sciences, and Bodega Marine Laboratory, University of California, Davis, Bodega Bay, California e Romberg Tiburon Center, San Francisco State Universit...

2015
Paulo Felisberto Sérgio M. Jesus Friedrich Zabel Rui Santos João Silva Sylvie Gobert Sven Beer Mats Björk Silvia Mazzuca Gabriele Procaccini John W. Runcie Willy Champenois Alberto V. Borges

a LARSyS, University of Algarve, Faro, Portugal b MarSensing Lda, Faro, Portugal c Marine Plant Ecology Research Group, Center of Marine Sciences (CCMar), University of Algarve, Faro, Portugal d Laboratory of Oceanology MARE Centre, University of Liège, Belgium e Department of Plant Sciences, Tel Aviv University, Tel Aviv, Israel f Department of Ecology, Environment and Plant Sciences, Stockhol...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده ادبیات و علوم انسانی 1392

when we return to the concept of poetry and the age-old discussion about the uselessness or the usefulness of the poets to the private and public state of human beings, originating from plato and aristotles views about poets respectively, there emerges the question of the role of poetry in human beings lives. in the same manner, with the advance of technology and the daily progress and improvem...

Journal: :Trends in ecology & evolution 2011
Christoph Kueffer Ulo Niinemets Rebecca E Drenovsky Jens Kattge Per Milberg Hendrik Poorter Peter B Reich Christiane Werner Mark Westoby Ian J Wright

1 Institute of Integrative Biology – Plant Ecology, ETH Zurich, CH-8092 Zurich, Switzerland 2 Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51014, Estonia 3 Biology Department, John Carroll University, University Heights, OH 44118, USA 4 Max Planck Institute for Biogeochemistry, 07745 Jena, Germany 5 IFM Biology, Division of Eco...

2011
P. Straková R. M. Niemi R. Laiho

P. Straková, R. M. Niemi, C. Freeman, K. Peltoniemi, H. Toberman, I. Heiskanen, H. Fritze, and R. Laiho Peatland Ecology Group, Department of Forest Sciences, University of Helsinki, P.O. Box 27, 00014 University of Helsinki, Finland Finnish Forest Research Institute, Vantaa Research Unit, P.O. Box 18, 01301 Vantaa, Finland Finnish Environment Institute, P.O. Box 140, 00251 Helsinki, Finland Wo...

2011
Carolyn F. Weber Donald R. Zak Bruce A. Hungate Robert B. Jackson Rytas Vilgalys R. David Evans Christopher W. Schadt J. Patrick Megonigal

Carolyn F. Weber,1 Donald R. Zak,2,3 Bruce A. Hungate,4,5 Robert B. Jackson,6,7 Rytas Vilgalys,6 R. David Evans,8 Christopher W. Schadt,9 J. Patrick Megonigal10 and Cheryl R. Kuske1* Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. School of Natural Resources & Environment and Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48...

Journal: :JASIST 2011
Zixiu Guo Xiongwen Lu Yuan Li Yifan Li

Motivated by the increasing popularity of computermediated communication (CMC) media in university students’ learning, this study employs a four-stage novel approach for analyzing and developing a structured hierarchy framework for students’ usage of CMC media in learning contexts. First, media characteristics and the Uses and Gratifications (U&G) approach were adopted to understand student-spe...

H. Wang, R. Peng, S. Tan,

With the development of science and technology, microwave has been used in many fields such as industry, military, medicine and communication. People are living in a lapped and dynamic electromagnetic environment. Concerns about potential hazards of microwave are getting increasing attentions. The single biological effects of microwave were widely discussed which was considered harmful. Relevan...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده مرتع و آبخیزداری و شیلات و محیط زیست 1391

مراتع حدود نیمی از خشکی های جهان را در بر دارند و پوشش گیاهی آن در نتیجه تأثیر متقابل محیط و موجودات زنده به وجود آمده است و به عنوان یک اکوسیستم طبیعی مدیریت می شوند. علاوه بر مراتع، راه ها در عصر حاضر نیز از اجزا مهم و زیرساخت های اصلی زندگی نوین و توسعه کشورها به شمار می روند. جاده ها ساخته دست بشر هستند و جوامع گیاهی کنار جاده تحت تأثیر ساخت و ساز قرار دارند. پوشش "رودرال" به مجموعه ای از پ...

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