Appropriateness of emergency department use in pediatric inflammatory bowel disease: a quality improvement opportunity.

Objectives: We sought to characterize emergency department (ED) encounters for pediatric inflammatory bowel disease (IBD) to identify areas for prevention.

Methods: Retrospective chart review of 5 consecutive ED encounters at 7 centers was performed.

Results: Of 35 unique encounters by 32 patients, 3 main factors contributed to ED utilization: disease severity or course, day or time of care, and physician instruction.

Electric field-induced emission enhancement and modulation in individual CdSe nanowires.

CdSe nanowires show reversible emission intensity enhancements when subjected to electric field strengths ranging from 5 to 22 MV/m. Under alternating positive and negative biases, emission intensity modulation depths of 14 ± 7% are observed. Individual wires are studied by placing them in parallel plate capacitor-like structures and monitoring their emission intensities via single nanostructure microscopy.

Clinical results from a randomized, double-blind, dose-ranging study of pantoprazole in children aged 1 through 5 years with symptomatic histologic or erosive esophagitis.

In an 8-week, multicenter, randomized, double-blind study, we evaluated the efficacy and tolerability of pantoprazole (0.3mg/kg [low dose (LD)], 0.6 mg/kg [medium dose (MD)], and 1.

Prevalence of endoscopic findings of erosive esophagitis in children: a population-based study.

Purpose: Symptoms of gastroesophageal reflux disease (GERD) occur in 2% to 7% of children. The manifestations of GERD can be limited to symptoms (eg, heartburn, regurgitation) or can be more complicated, such as erosive esophagitis, esophageal strictures, or Barrett esophagus. The prevalence of such GERD complications in children is unknown.

Impact of carbon nanotubes on the ingestion and digestion of bacteria by ciliated protozoa.

Research on the toxicity of carbon nanotubes has focused on human health risks, and little is known about their impact on natural ecosystems. The ciliated protozoan Tetrahymena thermophila has been widely studied by ecotoxicologists because of its role in the regulation of microbial populations through the ingestion and digestion of bacteria, and because it is an important organism in wastewater treatment and an indicator of sewage effluent quality. Here we show that single-walled carbon nanotubes are internalized by T.