Contaminants in waste foundry sand and its leachate

The environmental characteristics of Waste Foundry Sands (WFS), including chemicals in WFS and its leachate, are essential in understanding the environmental impact, rational disposal and potential development of beneficial applications of this solid industrial waste. This paper presents an assessment of broad-spectrum chemicals (metallic, non-metallic and organic chemicals) in aspects of their statistics (mean, median and the 95th percentile) in dry-weight WFS and WFS leachates based on laboratory measurements of 594 WFS samples from 123 foundry facilities in the USA. Results indicate that WFS is basically not hazardous except a risk associated with WFS from copper-based foundry facilities. Leachability of metallic chemicals varies among investigated WFS. A clear delineation between different leaching protocols is implicated.An Den

California environmental ballot proposition support by Census Tract, 1990-2000

Contains proportion of citizen votes in favor of various environment-related ballot propositions by Census Tract, for every tract in California. IncludesL 1996 Prop. 204 Water Bond [pr204appr_tr], 1998 Prop. 4 Trapping Practices [pr4appr_tr], 1998 Prop. 7 Air Quality Improvement [pr7appr_tr], 2000 Prop. 12 Parks [pr12appr_tr], and 2000 Prop. 13 Water [pr13appr_tr]. Dataset is unique at the state-county-tract2000-year level

Physician-Related Factors Involved in Patient Decisions to Enroll Onto Cancer Clinical Trials

The development of new cancer therapies requires additional, and more complex, clinical trials. But only approximately 3% to 5% of adult cancer patients participate in cancer clinical trials. This study seeks to identify and understand the attitudes of the public and cancer survivors toward health-related decisions and cancer clinical trials to identify the key factors that must be addressed to increase that percentage

Gender of Pediatric Recombinant Human Growth Hormone Recipients in the United States and Globally

Background: Gender disparities were found in reports of early pediatric recombinant human GH (rhGH) use in the United States. With rhGH entering its third decade, we sought to examine U.S. gender-based treatment patterns and how these patterns compare with that of other countries

Envy and positional bias in the evolutionary psychology of management

We propose that humans have evolved at least two specialized cognitive adaptations shaped by selection to solve problems associated with resource competition: (1) a positional bias by which individuals judge success in domains that affect fitness in terms of standing relative to their reference group; and (2) envy, an emotion that functions to alert individuals to fitness-relevant advantages enjoyed by rivals and to motivate individuals to acquire those same advantages. We present new data supporting the existence of design features of these hypothesized psychological adaptations and discuss implications for economists, organizations, marketers, and managers. Copyright © 2006 John Wiley & Sons, Ltd.