The biosphere 2 project and its potential role in assisting space exploration
Abstract Space Biospheres Ventures is developing technologies for its Biosphere 2 project — a 3 acre materially closed ecological system with human habitat, intensive agriculture and five wilderness biomes — and other life-support testbeds for space habitats in microgravity and the Moon and Mars, as well as for ecological research pertinent to the biosphere of Earth. These include soil bed reactors for air purification and biomass production; aquatic waste processing systems; real-time analytic systems; and computer systems of control and management. A space policy pursuing joint Earth and ‘space biospheres’ objectives and implications is discussed.
Biosphere 2 Test Module: a ground-based sunlight-driven prototype of a closed ecological life support system.
Constructed in 1986, the Biosphere 2 Test Module has been used since the end of that year for closed ecological systems experiments. It is the largest closed ecological facility ever built, with a sealed variable volume of some 480 cubic meters. It is built with a skin of steel spaceframes with double-laminated glass panels admitting about 65 percent Photosynthetically Active Radiation (PAR). The floor is of welded steel and there is an underground atmospheric connection via an air duct to a variable volume chamber ("lung") permitting expansion and contraction of the Test Module's air volume caused by changes in temperature and barometric pressure, which causes a slight positive pressure from inside the closed system to the outside thereby insuring that the very small leakage rate is outward. Several series of closed ecological system investigations have been carried out in this facility. One series of experiments investigated the dynamics of higher plants and associated soils with the atmosphere under varying light and temperature conditions. Another series of experiments included one human in the closed system for three, five and twenty-one days. During these experiments the Test Module had subsystems which completely recycled its water and atmosphere; all the human dietary needs were produced within the facility, and all wastes were recycled using a marsh plant/microbe system. Other experiments have examined the capability of individual component systems used, such as the soil bed reactors, to eliminate experimentally introduced trace gases. Analytic systems developed for these experiments include continuous monitors of eleven atmospheric gases in addition to the complete gas chromatography mass spectrometry (GCMS) examinations of potable, waste system and irrigation water quality.
Communist History: An Annual Bibliography (2005)
The subject of this bibliography is the scholarly literature of communist history. For the USA coverage is extensive. For the rest of the Anglophone world coverage is selective, while coverage for the rest of the world is more selective still. Coverage of the former and presently communist countries is largely limited to works dealing with the Communist parties of those countries. Anti-communism is covered selectively, with somewhat more emphasis on its interaction with communism than its nature as a movement/ideology per se. Coverage of related topics, i.e. the labor movement, Marxism, other strains of radicalism, etc., is highly selective and limited to items directly relevant to communism. For coverage of current reportage (newspapers, news weeklies, journals of opinion, Internet/WWW discussion lists, etc.) see the Newsletter of the Historians of American Communism and the Historians of American Communism Discussion List (h-hoac@h-net.msu.edu). The Bibliography is organized into seven sections, listed below. Sections 1–5 are form and genre based (monographs, serials, etc.), while sections 6 and 7 are format based (sound and visual, electronic). Entries are arranged alphabetically within each section. Where the number of entries warrants it, a section is divided into USA and Other. There is no index. Please be aware that most citations for items in electronic format are listed under their appropriate form/genre, i.e. articles in electronic serials are listed under serials. Section 7 (Internet, WWW, etc.) only contains citations for items in forms and genres irreducibly unique to the electronic environment, i.e. discussion lists (and postings and threads therein) and for those web sites and other electronic resources not subsumed under categories 1–7. Items cited are from the calendar year in the title of the Bibliography, with two exceptions, Internet/WWW items, where publication/creation date information is often unavailable or indeterminate, and older items not cited