ether (MTBE) determination in specific groundwater matrices. It demonstrates the importance of laboratory selection for compound analysis based upon technical experience and instrument capabilities. This method study was performed in support of a treatment technology demonstration for MTBE conducted under the EPA Superfund Innovative Technology Evaluation program. MTBE is an oxygenate added to ...

BACKGROUND Conventional treatments for eating disorders are associated with poor response rates and frequent relapse. Novel treatments are needed, in combination with markers to characterize and predict treatment response. Here, resting-state functional magnetic resonance imaging (rs-fMRI) was used to identify predictors and correlates of response to repetitive transcranial magnetic stimulation...

OBJECTIVE We analyze 27 point-prevalent DSM-IV Axis I comorbidities for eating disorder inpatients. METHODS The sample included 2436 female inpatients treated between January 1, 1995, and December 31, 2000, for primary DSM-IV diagnoses of anorexia, bulimia, and eating disorder not otherwise specified. Analyses were multivariate analysis of variance and multinomial logistic regression; sociode...

The performance and efficiency of an open-cathode PEM fuel cell system in dead-ended anode (DEA) configuration and hydrogen purges is analyzed in this work. Excess water and crossed-over nitrogen in the anode decrease the hydrogen concentration at the catalyst surface, which in turn causes performance losses. Purging the anode with hydrogen removes water and nitrogen and thus recovers the perfo...

Tumor contamination of hematopoietic stem cell grafts may influence the outcome of breast cancer patients treated with high-dose chemotherapy. The goals of this study were: (a) to evaluate the prevalence of tumor contamination of bone marrow (BM) harvests in patients responding to systemic chemotherapy; (b) to evaluate reduction of BM tumor contamination by ex vivo purging with 4-hydroperoxycyc...

Two depuration, or purging, systems were examined for their effect on survival and evacuation Ž . rate of intestinal contents of the hindgut of crawfish Procambarus clarkii . In the immersion system, crawfish were held in baskets suspended in the water column and subjected to profuse aeration and low water exchange. Crawfish in the water spray system were maintained in shallow Ž . pools 1.3-cm ...

High-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) can be used to measure metal ion levels in whole blood, although the accuracy and repeatability of this method is not yet known in the clinical setting. In this study, chromium, cobalt and titanium ion levels were measured in three whole blood samples, each collected at the same moment from 101 patients undergoing total hi...

Proton exchange membrane fuel cells (PEMFCs) with a dead-ended anode and cathode can obtain high hydrogen and oxygen utilization by a comparatively simple system. Nevertheless, the accumulation of the water in the anode and cathode channels might cause a local fuel starvation degrading the performance and durability of PEMFCs. In this study, a brand new design for a polymer electrolyte membrane...