نتایج جستجو برای: fragmentation road resources

تعداد نتایج: 369605  

Journal: :محیط شناسی 0
فرود آذری دهکردی استادیار گروه برنامه ریزی و مدیریت دانشکدة محیط زیست، دانشگاه تهران نوشین خزاعی دانشجوی کارشناسی ارشد، دانشکدة محیط زیست دانشگاه تهران

degradation model was introduced as an instrument of environmental impact assessment (eia) in iran. several methods are introduced in rapid environmental assessment, but none of them have evaluated landscape level. thus, the main objective of this research is to introduce a new spatial method for eia by using landscape metrics. a benefit of rapid assessment by using ecological landscape metrics...

Journal: :Dynamis 2014
Yolanda Eraso

This article analyses the organisation of cancer control in Argentina, with a special focus on the initiatives, institutions, and models that targeted female or gynaecological cancers. It identifies and examines the main factors in the process of elaborating a national policy to control the disease drawing on a series of actors and instruments such as the state, medical professionals, instituti...

2012
G. Scott Snyder T. Gibson Gaylord Frederic T. Barrows Kenneth Overturf Kenneth D. Cain Rodney A. Hill Ronald W. Hardy

a USDA/ARS Small Grains and Potato Germplasm Research Unit, Hagerman Fish Culture Experiment Station, 3059 F National Fish Hatchery Road, Hagerman, ID 83332, USA b USFWS Bozeman Fish Technology Center, Bozeman, MT, 59715, USA c Department of Fish and Wildlife Resources and the Aquaculture Research Institute, University of Idaho, Moscow, ID 83844, USA d Department of Animal and Veterinary Scienc...

2015
Xiaomeng Song Jianyun Zhang Chesheng Zhan Yunqing Xuan Ming Ye Chonggang Xu

http://dx.doi.org/10.1016/j.jhydrol.2015.02.013 0022-1694/ 2015 Elsevier B.V. All rights reserved. ⇑ Corresponding authors at: Hydrology and Water Resources Department, Nanjing Hydraulic Research Institute, No. 225 Guangzhou Road, Gulou District, Nan Jiangsu Province 210029, China. Tel.: +86 (25) 85828535; fax: +86 (25) 85828555 (X. Song). Room 3231, Institute of Geographical Science & Natural ...

Journal: :Bulletin of environmental contamination and toxicology 1987
G Proulx D V Weseloh J E Elliott S Teeple P A Anghern P Mineau

134 Donjeux, Lorraine, Quebec, J6Z 3C5, Canada; 2Canadian Wildlife Service, Canada Center for Inland Waters, 867 Lakeshore Road, Burlington, Ontario, L7R 4A6, Canada; 3Canadian Wildlife Service, Toxic Chemicals Program Section, National Wildlife Research Center, 100 Gamelin Blvd., Hull, Quebec, KIA 0E7, Canada; 4Inland Waters Directorate, Ontario Region Water Resources Branch, 75 Farquhar St., ...

2012
VU DINH THONG SEBASTIEN J. PUECHMAILLE ANNETTE DENZINGER CHRISTIAN DIETZ GABOR CSORBA PAUL J. J. BATES EMMA C. TEELING

Institute of Ecology and Biological Resources, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam (VDT) Animal Physiology, Institute of Neurobiology, Faculty of Sciences, University of Tübingen, Auf der Morgenstelle 28, D-72076, Tübingen, Germany (VDT, AD, CD, HS) School of Biology and Environmental Sciences, University College Dublin, Belfield, Dublin 4, Ireland (SJP, ECT) Department o...

2008
Nicholas Rudzicz Clark Verbrugge

The generation of detailed virtual environments is an increasingly resource-consuming task for videogame developers. This has encouraged the investigation of procedural techniques for creating content from landscapes to textures to—much more recently—cities and their constituent road-scapes. This paper introduces the Iterated Subdivision algorithm, a straightforward, flexible, and easily custom...

Journal: : 2022

Purpose. Study the spatial distribution of artificial reservoirs in Dnipropetrovsk region and fragmentation impact small riverbeds on changes quality water resources. Methodology. Field studies current state river basins were carried out, rivers selected principle different geographical location levels anthropogenic impact. Analytical laboratory salt composition methods mathematical analysis us...

2011
Weifu Wang

The road coloring problem is an interesing problem proposed over 40 years ago by Adler, Goodwyn and Weiss. Hundreds of mathematicians worked on this problem and failed to make the conjecture a theorem. Finally, in 2007, it was proved by a 60-year-old Israeli mathematician, Avraham Trahtman. It turns out the prove was quite simple after Trahtman partitioned the graph into cycles and trees. The d...

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