Multifrequency electromagnetic geophysical tools for evaluating the hydrologic conditions and performance of evapotranspiration barriers.

Surface barriers are designed to isolate subsurface contaminants for 1000 years or longer, functionally limiting water infiltration and removing the driving force for contaminant transport to groundwater. Cost-effective monitoring is challenging because of the long design life for surface barriers, spatial limitations and finite lifetime of in situ sensors, and performance metrics related to drainage. Hence, ground-penetrating radar (GPR) and electromagnetic induction (EMI) tools were evaluated for use in performance monitoring of surface barriers.

Beliefs about social integration from the perspectives of persons with mental retardation, job coaches, and employers.

Beliefs of multiple stakeholders who were all part of the same "transition community" (including persons with mental retardation, job coaches, and employers) about social integration outcomes and interventions in employment settings were examined. Data were collected through interviews and questionnaires that were designed based on a previously affirmed conceptual framework of social integration. Although results showed that stakeholders agreed on some outcomes and interventions they disagreed on others.