The rest-frame UV-to-optical flux ratio, which characterizes the "UV upturn" phenomenon, is potentially the most sensitive tracer of age in elliptical galaxies; models predict that it may change by orders of magnitude over the course of a few gigayears. In order to trace the evolution of the UV upturn as a function of redshift, we have used the far-UV camera on the Space Telescope Imaging Spect...

0016-2361/$ see front matter Published by Elsevier doi:10.1016/j.fuel.2008.11.017 * Corresponding author. Present address: LMC-IQ, 4478, CEP 70919-970, Brasilia-DF, Brazil. E-mail addresses: [email protected] (P.A.Z. Suarez (S.Z. Erhan). 1 The use of trade, firm, or corporation names in information and convenience of the reader. Such use d endorsement or approval by the United States Depa Agricult...

1 This work is supported by ONR “MINUTEMAN” project under contract N000014-01-C-0016 Abstract –The on-demand routing schemes in mobile ad hoc networks are appealing because of the lower routing overhead, compared with traditional proactive schemes. The on-demand routing protocols introduce routing overhead only in the presence of data packets that need routes. However, the control overhead of o...

Presented is an improved model for the prediction of phase equilibria and cage occupancy of CH4 and CO2 hydrate in aqueous systems. Different from most hydrate models that employ Kihara potential or Lennard-Jones potential with parameters derived from experimental phase equilibrium data of hydrates, we use atomic site-site potentials to account for the angle-dependent molecular interactions wit...

Cesium-137 derived from the explosion of the Chernobyl reactor in 1986 was preserved in anoxic sediments from a coastal environment in southern Rhode Island. Although the radioactive plume was detected in surface air samples at several locations in the United States, this is the first known record of a Chernobyl Cs peak in sediments from North America. The inventory of Chernobyl Cs that was pre...

It is widely suspected, yet controversial, that infection plays an etiologic role in the development of acute lymphoblastic leukemia (ALL), the most common childhood cancer and a disease with a confirmed prenatal origin in most cases. We investigated infections at diagnosis and then assessed the timing of infection at birth in children with ALL and age, gender, and ethnicity matched controls to...

BACKGROUND Poor adherence to medications is a major cause of morbidity and inadequate drug effectiveness. Efforts to improve adherence have typically been either ineffective or too complex to implement in clinical practice. Lottery-based incentive interventions could be a scalable approach to improving adherence. METHODS This was a randomized, controlled clinical trial of a daily lottery-base...

We investigate the evolution of early-type galaxies in four clusters at z = 0.4 (Abell 370, Cl 0303+17, Cl 0939+47 and Cl 1447+26) and in one at z = 0.55 (Cl 0016+16). The galaxies are selected according to their spectrophotometrically determined spectral types and comprise the morphological classes E, S0 and Sa galaxies. Structural parameters are determined by a two-component fitting of the su...

Chlorhexidine is a commonly used antiseptic and disinfectant in the health-care setting. Its usage has increased in recent years with intensive campaigns and infection control guidelines to combat hospital-acquired infections. As a result, patients and health-care workers (HCW) are exposed to increasing chlorhexidine usage. In recent years, adverse reactions to chlorhexidine ranging from allerg...

© 2014 by the AGA Institute 0016-5085/$36.00 PEarly Detection of Colorectal Cancer (CRC) and Adenomatous Polyps continues the American Gastroenterological Association’s (AGA) work to develop a rich practice portfolio within the “Roadmap to the Future of GI” initiative. The Roadmap to the Future of GI is designed to provide gastroenterologists with a single source for clinical tools needed to pr...