نتایج جستجو برای: lands
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Ron Laskey — soon to head a new institute in Cambridge, UK, devoted to the molecular biology of cancer — is probably one of the few scientists to derive inspiration from the French existentialist André Gide. Pinned on the notice board above Laskey’s desk, alongside holiday snaps of his family climbing in the French Alps, is a quotation from Gide: “One does not discover new lands without consent...
This synthesis and assess ment report builds on an extensive scientific literature and series of recent assessments of the historical and potential impacts of climate change and climate variability on managed and unmanaged ecosystems and their constituent biota and processes. It identifies changes in resource conditions that are now being observed and examines whether these changes can be attri...
ded systems software for planetary space exploration. The high degree of reliability, autonomy, and flexibility these systems require, combined with demanding mission requirements and the high cost of failure, place extraordinary demands on the systems produced. In September 1993, we began our attempt at the Jet Propulsion Laboratory to land a spacecraft on the planet Mars. This spacecraft, Mar...
In order for the Bureau of Land Management (BLM) to comply with the Government Performance and Results Act (GPRA), and better meet the needs of the public; a visitor satisfaction survey was conducted at 23 BLM recreation sites in 11 states during fiscal year 2009 (FY09). The survey was developed to measure each site's performance related to BLM GPRA Goal 3.1 Provide for a quality recreation exp...
A review of the literature reporting the methods and results of studies concerned with the nature of nonpoint source microbial pollution leads to several conclusions: (i) Comparison f data from different studies may be complicated by variation in the choice of indicator organisms, variation in watershed size and homogeneity, and variation in media and procedures for determining fecal streptococ...
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