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Määttä, Suvi; Ray, Carola; Roos, Gun; Roos, Eva – Early Childhood Education Journal, 2016
This study explored parents' and preschool personnel's opinions on factors influencing 3-5-year-old children's sedentary behaviors by applying the socioecological model. Four focus group interviews with preschool personnel (N = 14) and six interviews with parents (N = 17) were conducted in autumn 2014. Two researchers independently analyzed the…
Descriptors: Preschool Children, Physical Activity Level, Ecological Factors, Social Influences
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Curry, Guy L.; Coulson, Robert N.; Gan, Jianbang; Tchakerian, Maria D.; Smith, C. Tattersall – Bulletin of Science, Technology & Society, 2008
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,…
Descriptors: Systems Analysis, Programming, Sustainable Development, Models
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Smith, I. R.; Henderson-Sellers, B. – Environmental Education and Information, 1981
Describes the basic philosophy, nomenclature, and techniques used in mathematical modelling to enable biologists, engineers, land managers, and others to understand the concepts and usefulness of models. Contrasts conceptual and empirical approaches, using ecosystem models as an example of the former. (DC)
Descriptors: Ecological Factors, Ecology, Environmental Education, Higher Education
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Foltz, Richard C. – History Teacher, 2003
The emerging sub-field of world history is all about connections and interactions. It challenges the received treatments of history which have focused on specific regions and civilizations as if they had been discrete realities unto themselves, and reminds people that nothing happens in a vacuum. But to date world historians have not taken this…
Descriptors: World History, Physical Environment, History, Environmental Influences