This study investigated the knowledge gains and attitude shifts attributable to a unique online science education game, Uncommon Scents. The game was developed to teach middle school students about the biological consequences of exposure to toxic chemicals in an environmental science context, as well as the risks associated with abusing these chemicals as inhalants. Middle school students (n = ...

Against the Spectrum distortion problem of the IHS method which exists in the Quick-Bird data fusion, the paper proposes visualpan band method and Linear weighted matching two methods to improve it, provides the best value scope of the α in the VisualPan band method as well as the best weighted values of pan and I when the spatial characteristic and the spectrum characteristic of the linear wei...

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In this paper we study the life cycle locational choices of heterogeneous households and characterize the dynamics of metropolitan areas. We develop an overlapping generations model for households in of a system of multiple jurisdictions. At each point of time households choose among the finite number of jurisdictions, pick consumption and housing plans, and vote over education expenditures and...

This paper describes the core methodological ideas, the required input data, and estimation issues of the extended cohort-component approach to simultaneously project household composition and population distributions at sub-national levels. We assess the projection accuracy of this approach by calculating projections from 1990 to 2000 and comparing projected with the census-observed counts in ...

This paper aims to add to existing research on poverty and regional diversity by exploring the extent of poverty in small regional areas. Poverty analysis on a regional basis has previously been severely hampered by a lack of suitable data. The unit record files from the Australian Bureau of Statistics (ABS) household expenditure and income surveys allow analysis at state and very broad regiona...

This study investigates gender differences in the determinants of several schooling indicators in Conakry, Guinea, using ordered and binary probit models incorporating household-level random effects. Such indicators include grade attainment, current enrollment, and withdrawal from school. The survey, which was conducted on 1725 households, contains detailed information on a wide range of socio...

8 ABSTRACT: Which municipalities and locations within the United States contribute the 9 most to household greenhouse gas emissions, and what is the effect of population density 10 and suburbanization on emissions? Using national household surveys, we developed 11 econometric models of demand for energy, transportation, food, goods, and services that 12 were used to derive average household car...