We report on the manufacture of a first batch of approximately 2,000 Gas Electron Multipliers (GEMs) using 3M’s fully automated roll to roll flexible circuit production line. This process allows low-cost, reproducible fabrication of a high volume of GEMs of dimensions up to 30×30 cm. First tests indicate that the resulting GEMs have optimal properties as radiation detectors. Production techniqu...

Many methods for detecting model genetically engineered microorganisms (GEMs) in experimental ecosystems rely on cultivation of introduced cells. In this study, survival of Escherichia coli was monitored with the green fluorescent protein (GFP) gene. This approach allowed enumeration of GEMs by both plating and microscopy. Use of the GFP-marked GEMs revealed that E. coli persisted in stream wat...

BACKGROUND Because of a lack of randomized controlled trials and the methodological weakness of currently available observational studies, the benefits of helicopter emergency medical services (HEMS) over ground emergency medical services (GEMS) for major trauma patients remain uncertain. The aim of this retrospective nationwide cohort study was to compare the mortality of adults with serious t...

The civil infrastructure including highways, bridges, and water/sewer systems, is crucial for economic growth and prosperity. Among the various infrastructure systems, sewer pipelines networks represent a great challenge due to their diverse components that have different repair requirements. This paper introduces a comprehensive asset management framework to support the efficient planning of m...

The Girls health Enrichment Multi-site Studies (GEMS) is an obesity prevention research program sponsored by the National Heart, Lung, and Blood Institute (NHLBI), targeting young African-American girls. Expert groups have suggested that the high prevalence of obesity in African-American women could be a contributing factor to their excess morbidity and mortality from cardiovascular disease com...