Universality in conformations and transverse fluctuations of a semi-flexible polymer in a crowded environment.

We study the universal aspects of polymer conformations and transverse fluctuations for a single swollen chain characterized by a contour length L and a persistence length ℓp in two dimensions (2D) and three dimensions (3D) in the bulk, as well as in the presence of excluded volume (EV) particles of different sizes occupying different area/volume fractions. In the absence of the EV particles, we extend the previously established universal scaling relations in 2D [Huang et al., J.

A new non-diffusional gas bubble production route in used nuclear fuel: implications for fission gas release, cladding corrosion, and next generation fuel design.

A novel relationship between noble metal phase particles and fission gas bubble production in used nuclear fuel is described. The majority of Te atoms within noble metal phase undergo radioactive decay to form stable Xe within a few hours after particle formation. This results in the production of clusters of Xe atoms contained within the solid metal matrix exhibiting an equivalent gas bubble pressure approaching 1 GPa.

Phase field model of uranium carbide solidification through a combined KKS and orientation field approach.

A Phase Field model is developed combining the Orientation Field approach to modeling solidification with the Kim, Kim, Suzuki method of modeling binary alloys. These combined methods produce a model capable of simulating randomly oriented second phase dendrites with discrete control of the solid-liquid interface energy and thickness. The example system of carbon in a liquid uranium (U) melt is used as a test for the model.

Is fever treated more promptly than pain in the pediatric emergency department?

Background: Fever can be treated with a higher priority than pain in the pediatric emergency department (ED) population.

Objective: The primary objective was to assess whether patients with a fever are treated with acetaminophen or ibuprofen more promptly than they are treated for pain.

Methods: A retrospective descriptive study was performed on all patients between the ages of 3 and 19 years who received acetaminophen or ibuprofen in the pediatric ED from February 1, 2010 to January 31, 2011.