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Full-Text Articles in Physical Sciences and Mathematics
‘A View From Johannesburg.’ Daily Reports On The World Summit On Sustainable Development, Nat Quansah
‘A View From Johannesburg.’ Daily Reports On The World Summit On Sustainable Development, Nat Quansah
Nat Quansah
No abstract provided.
Who's Minding The Kids? Pollution, Public Schools, And Environmental Justice In Los Angeles, Manuel Pastor, James Sadd, Rachel Morello-Frosch
Who's Minding The Kids? Pollution, Public Schools, And Environmental Justice In Los Angeles, Manuel Pastor, James Sadd, Rachel Morello-Frosch
James Sadd
Although previous environmental justice research has focused on analysis of the disproportionate burden of environmental hazards on minority residents, few studies have examined demographic inequities in health risks among children. This article evaluates the demographic distribution of potentially hazardous facilities and health risks associated with ambient air toxics exposures among public schoolchildren in the Los Angeles Unified School District. Methods. We combine Geographic Information System analysis with multivariate statistics to compare enrollment and demographic information for students who attend district schools with the spatial pattern of land use, locations of toxic emissions and facilities, and calculated indices of estimated lifetime …
Deformation Associated With A Continental Normal Fault System, Western Grand Canyon, Arizona, Phillip Resor, David Pollard
Deformation Associated With A Continental Normal Fault System, Western Grand Canyon, Arizona, Phillip Resor, David Pollard
Phillip G Resor
In the western Grand Canyon, the Colorado River cuts through a series of moderate offset normal faults that mark the transition between the Colorado Plateau and the Basin and Range tectonic provinces. Both hanging wall and footwall rocks are exposed over > 1,000 m of vertical section, and contain relatively simple pre-existing structures. The area thus presents an opportunity to investigate processes of continental extension without cross-cutting fault patterns and large rotations typical of much of the Basin and Range. We have mapped 8 km of the Froggy Fault, including ~ 600 m of vertical section, and deformed strata of the …
Handbook On Fence Viewers And Laws On Fences In The Commonwealth Of Massachusetts, Joseph Larson
Handbook On Fence Viewers And Laws On Fences In The Commonwealth Of Massachusetts, Joseph Larson
Joseph S. Larson
This handbook is intended to serve as an informal guide to the laws that pertain to Fence Viewers and fencing in general in the Commonwealth of Massachusetts. We have used two primary sources for the current Massachusetts laws. We first searched the unofficial on-line text of the Massachusetts General Laws provided on the Internet (http://www.state.ma.us/legis/laws/mgl/) by the State Senate. This was followed by an examination of the laws, court decisions and notes as they appear in the most recent volumes and annual supplements of Massachusetts General Laws Annotated (1977). In every instance, the text describing each law consists only of …
Slip Inversion On Complex Fault Surfaces Using Angular Elastic Dislocations, Phillip Resor, L Maerten, F Maerten
Slip Inversion On Complex Fault Surfaces Using Angular Elastic Dislocations, Phillip Resor, L Maerten, F Maerten
Phillip G Resor
We present a new 3D slip-inversion method based on the analytical solution of an angular dislocation in a linear-elastic, homogeneous, isotropic, whole- or half-space. The approach uses a boundary element method (BEM) that employs planar triangular elements of constant displacement to model fault surfaces. Discretization of surfaces into triangular boundary elements allows the construction of complex 3D fault surfaces with irregular tipline and no overlaps or gaps. A damped least squares method is used to minimize the functional ¶llel.b-d∥2+ɛ^{2}∥ bigtriangledown .b∥ ^{2},where b represents the slip distribution on the faults, φ the influence coefficient matrix and d the observed deformation …
Environmental Justice And Regional Inequality In Southern California: Implications For Future Research, Manuel Pastor, C Porras, James Sadd
Environmental Justice And Regional Inequality In Southern California: Implications For Future Research, Manuel Pastor, C Porras, James Sadd
James Sadd
Environmental justice offers researchers new insights into the juncture of social inequality and public health and provides a framework for policy discussions on the impact of discrimination on the environmental health of diverse communities in the United States. Yet, causally linking the presence of potentially hazardous facilities or environmental pollution with adverse health effects is difficult, particularly in situations in which diverse populations are exposed to complex chemical mixtures. A community-academic research collaborative in southern California sought to address some of these methodological challenges by conducting environmental justice research that makes use of recent advances in air emissions inventories and …
Integrating Environmental Justice And The Precautionary Principle In Research And Policy Making: The Case Of Ambient Air Toxics Exposures And Health Risks Among Schoolchildren In Los Angeles, Rachel Morello-Frosch, Manuel Pastor, James Sadd
Integrating Environmental Justice And The Precautionary Principle In Research And Policy Making: The Case Of Ambient Air Toxics Exposures And Health Risks Among Schoolchildren In Los Angeles, Rachel Morello-Frosch, Manuel Pastor, James Sadd
James Sadd
Two policy frameworks, environmental justice and the precautionary principle, have begun to transform traditional approaches to environmental policy making and community organizing related to public health. Despite having several important overlapping policy goals, little effort has been made to purposefully integrate these two frameworks. This article discusses preliminary research on environmental inequality in ambient air toxics exposures and associated health risks among schoolchildren in the Los Angeles Unified School District. Results indicate that children of color, namely, Latinos and African Americans, bear the highest burden of estimated cancer and noncancer health risks associated with ambient air toxics exposures while they …