Sciences naturelles

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Borderlands Sciences Research FoundationBiblio.com

Borderlands Sciences Research Foundation 1990 Catalog 1-A Research Resources.

National Research Council, Commission on Physical Sciences, Mathematics, and Applications, Space Studies Board, Committee on PlaBiblio.com

An Integrated Strategy for the Planetary Sciences: 1995-2010

199477570Washington DC: National Research Council 1994. Presumed First Edition First printing. Trade paperback. Good. xi 1 199 1 pages. Tables. Figures. References. Bibliography of Space Studies Board Planetary Sciences Reports. Cover has wear and soiling. An Integrated Strategy for the Planetary Sciences: 1995-2010 explains that a responsive planetary exploration program demands a mix of mission sizes ranging from comprehensive missions with multiple objectives such as Galileo and Cassini to small missions with highly constrained scientific objectives. 2 At the same time The Role of Small Missions in Planetary and Lunar Exploration concluded that a series of small missions present "the planetary science community with the opportunity to expand the scope of its activities and to develop the potential and inventiveness of its members in ways not possible within the confines of large traditional programs." In 1992 the National Research Council's Space Studies Board charged its Committee on Planetary and Lunar Exploration to: 1 summarize current understanding of the planets and the solar system; 2 pose significant scientific questions; and 3 establish priorities for scientific exploration of the planets for the period from 1995 to 2010. The scientific goals of solar system exploration include: 1 understanding how physical and chemical processes determine the major characteristics of the planets; 2 learning how planetary systems evolve; 3 determining how life developed particularly on Earth and in what ways life modifies planetary environments; and 4 discovering how simple basic laws of physics and chemistry can lead to the diverse phenomena observed in complex systems. COMPLEX maintains that the most useful programs to emphasize in the period from 1995 to 2010 are investigations of comets Mars and Jupiter and an intensive search for and characterization of extrasolar planets. National Research Council paperback

Ground Zero Books · États-Unis50,00 $US≈ 42,31 €

National Research Council, Commission on Life Sciences, Board on Radiation Effects Research, Committee on the Biological EffectsBiblio.com

Health Effects to Exposure to Low Levels of Ionizing Radiation; BEIR V.

199074457Washington DC: National Research Council 1990. Presumed First paperback Edition First printing. Trade paperback. Good. xiii 1 421 1 pages. Illustrations. References. Glossary. Index. Ex-library with usual markings. Some markings blacked out. Cover has some wear and soiling and front corner creased. The Committee was asked to conduct a comprehensive review of the biological effects of ionizing radiation focusing on information that had been reported since the conclusion of the BEIR III study and to the extent that available information permitted provide new estimates of the risks of genetic and somatic effects in humans due to low-level exposures of ionizing radiation. These risk estimates were to address both internal and external sources of radiation and the procedures by which these risk estimates were derived was to be documented. The Committee on the Biological Effects of Ionizing Radiation BEIR is a committee of the American National Research Council. It publishes reports on the effects of ionizing radiation. This book reevaluates the health risks of ionizing radiation in light of data that have become available since the 1980 report on this subject was published. The data include new much more reliable dose estimates for the A-bomb survivors the results of an additional 14 years of follow-up of the survivors for cancer mortality recent results of follow-up studies of persons irradiated for medical purposes and results of relevant experiments with laboratory animals and cultured cells. It analyzes the data in terms of risk estimates for specific organs in relation to dose and time after exposure and compares radiation effects between Japanese and Western populations. National Research Council paperback

Ground Zero Books · États-Unis50,00 $US≈ 42,31 €

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