Quantitative environmental radiologic assessment of oil and gas exploration activities using Ra concentration to estimate Po and Pb dose.

Exploration activities of hydrocarbon reservoirs have resulted in the release of naturally occurring radioactive material (NORM) into the environment, exposing them to workers and members of the public. Radium-226 and its progeny (Rn, Pb and Po) in the U-series and Ra in the Th-series are key isotopes that are released into the environment. Excessive radiation derived from oil and natural gas activities can potentially result in adverse health effects and increased cancer risk; thus, this study is focused on the evaluation of radiation exposure in Southern Pennsylvania, where large-scale conventional drilling and newer technologies have been carried out for over a century.

Opportunities and Challenges for Including Oyster-Mediated Denitrification in Nitrogen Management Plans.

Nitrogen pollution is one of the primary threats to coastal water quality globally, and governmental regulations and marine policy are increasingly requiring nitrogen remediation in management programs. Traditional mitigation strategies (e.g.

Conserved microsynteny of NPR1 with genes encoding a signal calmodulin-binding protein and a CK1-class protein kinase in Beta vulgaris and two other eudicots.

NPR1 is a gene of central importance in enabling plants to resist microbial attack. Therefore, knowledge of nearby genes is important for genome analysis and possibly for improving disease resistance. In this study, systematic DNA sequence analysis, gene annotation, and protein BLASTs were performed to determine genes near the NPR1 gene in Beta vulgaris L.