The effect of earthworms on roadway-derived Zn deposited as a surface layer in storm water retention basin soils

Increased urban development, including an increase in impervious surfaces has the potential to alter the biogeochemistry of surface systems due to storm water runoff contaminated with potentially toxic trace metals (e.g. Zn, Cu and Pb). A major source for urban metals is dust that accumulates on roadways. This roadway dust is derived from vehicle wear sources and tends to be enriched in trace metals such as Pb, Zn, Cu, Cd, Ni and Cr. This continuous source is then being transported via storm water runoff to receiving systems, such as storm water retention systems, which become important focusing environments for trace metal deposition. The fate of these roadway derived metals and their bioavailability once deposited in these urban ecosystems is not well understood. In this investigation we tested the hypothesis that the distribution and form of surface deposited roadway-derived Zn is a function of earthworm processes and is species dependent. The results of this investigation indicate that roadway dust derived Zn deposited as a surface layer on urban soils is readily removed from the surface in less than 30 days whether earthworms are present or not. However, after 90 days, the presence of earthworms and the life habit of the earthworm species present was found to have a significant impact on the physical and chemical cycling of roadway derived trace metals in storm water retention basin soils.     

Spirituality,Religion, and Career Development: Current Status and Future Directions

The growing interest in the role that spirituality and religion play in mental health has spawned research investigating the relationships between spirituality, religion, and career development. To date, only a limited number of studies have explored these variables in tandem, but generally these investigations have found aspects of spirituality and religion to relate positively to career decision self‐efficacy, career values, and job satisfaction. Theoretical models that explore the connection between these variables are outlined, and future research directions and counseling implications are suggested.     

People and Pixels 20 years later: the current data landscape and research trends blending population and environmental data

Population and Environment - In 1998, the National Research Council published People and Pixels: Linking Remote Sensing and Social Science. The volume focused on emerging research linking changes...     

Career Maturity of Students in Accelerated Versus Traditional Programs

The authors assessed the career maturity of students in accelerated versus traditional academic programs. Students in traditional programs were hypothesized to be more advanced regarding their career decision making and development when compared with students in accelerated programs. The Medical Career Development Inventory (see M. L. Savickas, 1984) was administered to 441 medical students. Results showed that students in traditional programs had significantly greater career crystallization and career specification. Interventions are needed to further the career maturity and developmental tasks of students in accelerated programs.     

White women and affirmative action in employment in six southern cities

The purpose of this research is to examine data from 167 randomly selected businesses on the impact of affirmative action and white female employment in six representative Florida cities. OLS regression analysis was used to explore the independent effects of affirmative action among other employment-related predictors. While white women are doing relatively well in the job market, employer support for affirmative action has no significant influence on their employment, even at higher job levels.