نتایج جستجو برای: national park

تعداد نتایج: 414755  

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2004
Timothy R Rebbeck Christine B Ambrosone Douglas A Bell Stephen J Chanock Richard B Hayes Fred F Kadlubar Duncan C Thomas

School of Medicine and Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania; Roswell Park Cancer Institute, Buffalo, New York; Environmental Genomics Section, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina; National Cancer Institute, Bethesda, Maryland; National Center for Toxicological Research, Jefferson, Arizona; and Univ...

2014
Jason R Pirone Marjolein Smith Nicole Kleinstreuer Thomas Burns Judy Strickland Yuri Dancik Richard Morris Lori Rinckel Warren Casey Joanna Jaworska

Social & Scientific Systems, Inc., Durham, NC 27713, USA Integrated Laboratory Systems, Inc., Research Triangle Park, NC 27709, USA National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA Procter & Gamble NV, Stro...

Journal: :Forests 2022

This study aims to conduct a survey of visitor reviews the Plitvice Lakes National Park in Croatia detect strengths and weaknesses park. In total, 15,673 written period between 2007 2021 were scraped from social media platform TripAdvisor. The research applies comprehensive combination multidimensional scaling, sentiment analysis, natural language processing approaches sample area international...

Journal: :Environmental monitoring and assessment 2007
Michael S Bank John R Burgess David C Evers Cynthia S Loftin

We reviewed literature reporting both total and methylmercury from biota from Acadia National Park, Maine, USA. Our review of existing data indicates that 1) mercury contamination is widespread throughout the Park's various aquatic ecosystems; 2) mercury pollution likely represents a moderate to high risk to biota inhabiting the Park; and 3) biota at all trophic levels possess elevated concentr...

2007
Matthew P. Longnecker Beth C. Gladen Lea A. Cupul-Uicab S. Patricia Romano-Riquer Jean-Phillipe Weber Robert E. Chapin Mauricio Hernández-Ávila

1 Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, US Department of Health and Human Services, Research Triangle Park, NC. 2 Biostatistics Branch, National Institute of Environmental Health Sciences, National Institutes of Health, US Department of Health and Human Services, Research Triangle Park, NC. 3 Center for Population Health Researc...

Journal: :iranian journal of animal biosystematics 0
n. moradi s. shafiei m.e. sehhatisabet

khabr national park and ruchun wildlife refuge are situated in the southeast of iran, kerman province. although snakes are an important group in the studied area, little is known regarding their diversity. the present study was carried out from march 2009 to late summer 2010. in this study, 74 specimens were collected (or observed) and identified, belonging to four families, 14 genera, and 17 s...

2011
Ming Yi Donghui Lu Jiun-Haw Chu James G. Analytis Adam P. Sorini Alexander F. Kemper Brian Moritz Sung-Kwan Mo Rob G. Moore Makoto Hashimoto Wei-Sheng Lee Zahid Hussain Thomas P. Devereaux Ian R. Fisher Zhi-Xun Shen

Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025; Geballe Laboratory for Advanced Materials, Departments of Physics and Applied Physics, Stanford University, Stanford, CA 94305; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025; and Advan...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم پایه 1388

چکیده ندارد.

Journal: :journal of rangeland science 2014
mohsen sharafatmandrad adel sepehry hossein barani

in arid and semi-arid rangelands, grazing as one of the natural or human induced processes has direct and indirect effects on structure and dynamics of plant community and ecosystems. a study was done to analyze the effects of grazing on plant species diversity and plant functional types‘ (pfts) diversity of arid and semi-arid rangelands. we analyzed plant richness and diversity data from 75 sa...

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