Trichloroethylene (TCE) is a chlorinated liquid that is commonly used for metal degreasing, household and industrial dry cleaning, and in paints and glues. Tetrachloroethylene, also known as perchloroethylene (PCE), is an excellent solvent for organic materials. PCE is volatile, highly stable, non-flammable and widely used in dry cleaning. A new method has been developed for measuring TCE and P...

Human exposure to volatile organic compounds (VOCs) via vapor intrusion (VI) is an emerging public health concern with notable detrimental impacts on public health. Phytoforensics, plant sampling to semi-quantitatively delineate subsurface contamination, provides a potential non-invasive screening approach to detect VI potential, and plant sampling is effective and also time- and cost-efficient...

AIMS To compare the performance of a new generation dual amplified enzyme immunoassay (EIA) with a molecular method for the diagnosis of Chlamydia trachomatis, using a range of urogenital samples, and to assess the reliability of testing self collected vaginal specimens compared with clinician collected vaginal specimens. METHODS Two population groups were tested. For the first population gro...

We review work on the effectiveness of different forms of cognitive enhancement, both pharmacological and non-pharmacological. We consider caffeine, methylphenidate, and modafinil for pharmacological cognitive enhancement (PCE) and computer training, physical exercise, and sleep for non-pharmacological cognitive enhancement (NPCE). We find that all of the techniques described can produce signif...

OBJECTIVE Because of emerging evidence that early-life exposure to the solvent tetrachloroethylene (PCE) has long-lasting neurological consequences, we examined the risk of unintentional head injuries following prenatal and childhood exposure to PCE-contaminated drinking water. METHODS Participants provided information on head injuries and other relevant characteristics in a self-administered...

Reengineering a large code base can be a monumental task, and the situation becomes even worse if the code is concomitantly being modiied. For the past two years, we have been using the Marvel process centered environment (PCE) for all of our software development and are currently using it to develop the Oz PCE (Marvel's successor). Towards this eeort, we are reengineering Oz's code base to iso...

INTRODUCTION Prenatal cocaine exposure (PCE) is known to affect emotional regulation [1]. Reciprocal modulation between the ventral medial prefrontal cortex (VMPFC) and amgydala is associated with emotional control in healthy populations [2], and disconnection between is associated with behavioral dysregulation [3,4]. Previously our PCE cohort was shown to lack emotional suppression during cogn...

Reengineering a large code base can be a monumental task, and the situation becomes even worse if the code is concomitantly being modi ed. Since January 1992, we have been using the Marvel process centered environment (PCE) for all of our software development and are currently using it to develop the Oz PCE (Marvel's successor). Towards this e ort, we are reengineering Oz's code base to isolate...

BACKGROUND Many studies of adults with acute and chronic solvent exposure have shown adverse effects on cognition, behavior and mood. No prior study has investigated the long-term impact of prenatal and early childhood exposure to the solvent tetrachloroethylene (PCE) on the affinity for risky behaviors, defined as smoking, drinking or drug use as a teen or adult. OBJECTIVES This retrospectiv...

Dehalococcoides ethenogenes strain 195 reductively dechlorinates tetrachloroethene (PCE) and trichloroethene (TCE) to vinyl chloride and ethene using H2 as an electron donor. PCE- and TCE-reductive dehalogenase (RD) activities were mainly membrane associated, whereas only about 20% of the hydrogenase activity was membrane associated. Experiments with methyl viologen (MV) were consistent with a ...