44,497 research outputs found

    [Review of] Wyatt MacGaffey. Religion and Society in Central Africa: The BaKongo of Lower Zaire

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    MacGaffey, professor of anthropology at Haverford College, has based this carefully crafted book on twenty years of fieldwork and archival research. This is the first systematic study of BaKongo religion. But the study is far more than an analysis of the religion, as MacGaffey demonstrates how BaKongo social structure and power relationships are embedded in its very fabric. Dividing the study into three parts, MacGaffey first focuses on a discussion of BaKongo cosmology, then describes BaKongo ritual and power, and finally deals with issues of change in the BaKongo religion and society. Taking the perspective of the BaKongo themselves, MacGaffey explains the significance of BaKongo cosmology and how it is reflected in their myths and rituals, and in the life cycle of the BaKongo people themselves. The cosmology serves as the model upon which marriage alliances are based and the religion is the basis for the sacred and secular power held by priests and chiefs

    Recursive formulation of Madelung continuity equation leads to propagation equation

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    We apply a recursive approach to the continuity equation of the Madelung fluid resulting in a propagation equation for particle probability densities. This propagation equation can be used to propagate particle distributions in the presence of a Madelung pressure field. We show that the derived propagation equation goes over into the guidance equation of the de Broglie-Bohm theory in the limit of well located single particles. As an example, we propagate particles that enter the lower slit of a double-slit experiment, while the Madelung fluid enters both slits.Comment: Article replaced because: Reformulated from a mathematical point of vie

    The motivational profiles and perceptions of schooling of Asian students in Australia

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    Asian-background students are performing better than other groups within the Australian educational setting. In order to investigate the reasons for this achievement advantage, this study examines the motivational profiles of Asian-background and Anglo-background students in New South Wales Australia. The research utilises personal investment theory and self-concept theory to provide a research framework. 283 Asian-background and 887 Anglo-background students were administered the Inventory of School Motivation, the General Achievement Goal Orientation Survey, the Facilitating Conditions Survey, and the Academic Self Description Questionnaire. While the motivational and self-concept profiles of the two groups were surprisingly similar, there are core significant differences that help explain the Asian students’ achievement advantage. Asian-background students are highly task oriented and significantly more effort oriented, more competitive, praise and token oriented than the Anglo-background students. They have a significantly stronger sense of purpose for schooling and are more performance oriented. Asian-background students also have a stronger intention to go on to university and further study, value school and like school more than their Anglo peers. These results are consistent with those reported in earlier studies with Asian American students

    Development of an atmospheric monitoring plan for space station

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    An environmental health monitoring plan for Space Station will ensure crew health during prolonged habitation. The Space Station, Freedom, will operate for extended periods, 90+ days, without resupply. A regenerative, closed loop life support system will be utilized in order to minimize resupply logistics and costs. Overboard disposal of wastes and venting of gases to space will be minimal. All waste material will be treated and recycled. The concentrated wastes will be stabilized and stored for ground disposal. The expected useful life of the station (decades) and the diversity of materials brought aboard for experimental or manufacturing purposes, increases the likelihood of cabin contamination. Processes by which cabin contamination can occur include: biological waste production, material off-gassing, process leakage, accidental containment breach, and accumulation due to poor removal efficiencies of the purification units. An industrial hygiene approach was taken to rationalize monitoring needs and to identify the substances likely to be present, the amount, and their hazard

    Will Increased Highway Funding Help Rural Areas?

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    Rural areas in the United States stand to benefit from new highway funding legislation, especially the South. The Transportation Equity Act for the 21st Century (TEA-21) authorizes sharply increased funding for major roads and is the single largest public works bill in U.S. history. Over a 6-year period, it will provide $171 billion to build new roads, widen lanes, put in new interchanges, and construct bridges. Under TEA-21, some spending discrepancies will be addressed and resolved for States that contribute more money into the Federal Highway Trust Fund than they receive in benefits.Federal-aid highways, Federal highway investments, Highway Trust Fund, Federal transportation policies, rural transportation, rural development, highway funding formula, TEA-21, ISTEA, donor States, recipient States, Community/Rural/Urban Development, Public Economics,

    A hybrid modulation for the dissemination of weather data to aircraft

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    Ohio University is continuing to conduct research to improve its system for weather data dissemination to aircraft. The current experimental system transmit compressed weather radar reflectivity patterns from a ground based station to aircraft. Although an effective system, the limited frequency spectrum does not provide a channel for transmission. This introduces the idea of a hybrid modulation. The hybrid technique encodes weather data using phase modulation (PM) onto an existing aeronautical channel which employs amplitude modulation (AM) for voice signal transmission. Ideally, the two modulations are independent of one another. The planned implementation and basis of the system are the reviewed

    Identifying atmospheric monitoring needs for Space Station Freedom

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    The atmospheric monitoring needs for Space Station Freedom were identified by examining the following from an industrial hygiene perspective: the experiences of past missions; ground based tests of proposed life support systems; the unique experimental and manufacturing facilities; the contaminant load model; metabolic production; and a fire. A target list of compounds to be monitored is presented and information is provided relative to the frequency of analysis, concentration ranges, and locations for monitoring probes
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