Suggests that states evolve in response to ecological or social circumscription, or resource concentration. When dense populations develop, fighting over land forces loser into political subordination or incorporation. This modification of coercive theories explain lack of state in Amazon basin and origin of Inca, Maya, Hwang Valley states.…

An investigation of the possible effects of air pollution on the absenteeism of elementary school children showed that a greater percent of absences occurred in the test group than in a comparable group. There is little question as to the importance that such information should have for educators, informed parents, and other adults in community…

Focuses on the use of ecological theory in permanency planning cases to understand and work with individuals and families, giving special attention to the complex interaction between person and environment. Discusses how bias against the interactionist perspective can operate in permanency planning activities, and offers suggestions for reducing…

Offers a critical commentary of recent attempts by adult-cognitive developmentalists to conduct more meaningful, ecologically-valid research. These efforts are criticized for assuming that ecological validity is assured primarily at the level of measures, and that the inclusion of familiar test stimuli and everyday situations within such measures…

This article presents the American Indian antinuclear stance which asserts that Native Americans will fight along with others against EXXON, Kerr-McGee, and other big mining companies. (Author/RTS)

Demonstrates the relevance of ecology to sociological research and discusses some of the theoretical perspectives embodied in ecology. Examines ecology's emphasis upon the population rather than the individual as the unit of observation and on organizations as products of the interaction of population and environment. (DB)

This study examines how locational (region and locale), community-level (school district poverty and adult educational attainment), and school district-level (district size and ratios of students to key school personnel) variables are related to indicators of hostile school climate for lesbian, gay, bisexual, and transgender (LGBT) youth.…

This study explores the social factors that influence young people's participation in school and out of school physical activities. Fifty-two 16-year-old adolescents from different socioeconomic backgrounds in one suburban and one inner-city secondary school in the Midlands, UK, participated in group interviews which explored their perceptions…

This study examines the factors influencing language and script choice in instant messaging (IM), a form of real-time computer-mediated communication, in a multilingual setting. Grounded in the New Literacy Studies, the study understands IM as a social practice involving texts, encompassing a range of literacy practices, within which a subset…

Disturbance-generated biomass results from endogenous and exogenous natural and cultural disturbances that affect the health and productivity of forest ecosystems. These disturbances can create large quantities of plant biomass on predictable cycles. A systems analysis model has been developed to quantify aspects of system capacities (harvest,…

Inheritance of the Atomic Energy Commission's Draft Environmental Impact Statement for the Liquid Metal Fast Breeder Reactor Program by the Energy Research and Development Administration has caused much concern among members of the Scientists' Institute for Public Information (SIPI). SIPI members are concerned about the inadequacy and economic…

Discussed is the environmental impact of the Liquid Metal Fast Breeder Reactor (LMFBR). Possible problems associated with the LMFBR are defined and the method of research being following is deplored. (MA)