منابع مشابه
NCGIA National Center for Geographic Information
Numerous efforts are underway by public and private groups to assess the status of biodiversity in the state. Most are being conducted at local to subregional scales, and many are focused on species or communities of special concern. Currently lacking is an overview of the protection status of species and communities both statewide and in the western U.S. as a whole. This report describes a geo...
متن کاملThe National Historical Geographic Information System (nhgis)
The National Historical Geographic Information System (NHGIS) is a five-year NSF-funded project designed to create a comprehensive U.S. census databaseat the census tract and county levelfor both the geographical and attribute data. Technological change presents an unprecedented opportunity to make these data readily available for social science research; thus bringing the complete census wit...
متن کاملNational Specialty Society for Community Medicine
National Specialty Society for Community Medicine Position Statement on Chrysotile Asbestos June 2010 Background The adverse health effects associated with exposure to asbestos exposure have been well established. Epidemiological, clinical, and laboratory studies have shown that asbestos is capable of causing lung cancer, mesothelioma, and a range of asbestos‐related diseases (International ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1902
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.15.372.270