We study the time evolution of a system of fermions with pairing interactions at a finite temperature. The dynamics is triggered by an abrupt increase in the BCS coupling constant. We show that if initially the fermions are in a normal phase, the amplitude of the BCS order parameter averaged over the Boltzmann distribution of initial states exhibits damped oscillations with a relatively short d...

BACKGROUND The Otago Exercise Program (OEP) is an evidence-based fall prevention program developed, evaluated, and disseminated in New Zealand. The program was designed for delivery in the home by physical therapists (PTs). It was not known if American PTs would require additional training and resources to adopt the OEP. This article describes the process of translating the OEP for disseminatio...

1 Department of Health Promotion and Behavior, College of Public Health, Institute of Gerontology, The University of Georgia, Athens, GA, USA, 2 Department of Health Promotion and Community Health Sciences, Texas A&M School of Public Health, College Station, TX, USA, 3 Emory University School of Medicine, Division of Pediatric Emergency Medicine, Children’s Healthcare of Atlanta, Atlanta, GA, U...

Molecular clouds have broad linewidths suggesting turbulent supersonic motions in the clouds. These motions are usually invoked to explain why molecular clouds take much longer than a free-fall time to form stars. It has classically been thought that supersonic hydrodynamical turbulence would dissipate its energy quickly, but that the introduction of strong magnetic elds could maintain these mo...

A long flux enhancement, with an exponential decay time of 86 min, is detected in 4U 1735−44 with the BeppoSAX Wide Field Cameras. We argue that this is a type I X-ray burst, making it the longest such burst ever observed. Current theories for thermonuclear bursts predict shorter and more frequent bursts for the observed persistent accretion rate.

In spite of precautions to avoid the harmful effects of extreme events, we experience recurrently phenomena that overcome the preventive barriers. These barriers usually increase drastically right after the occurrence of such extreme events, but steadily decay in their absence. In this paper we consider a simple model that mimics the evolution of the protection barriers to study the efficiency ...

in recent decades, tourism has been considered as a way to decreasing tensions of urban life. this study tried to determine the effective factors in visitors' willingness to pay for asiab kharabeh fall by using tobit model. data set were obtained by completing questionnaires and interviewing with 125 individuals who visit the fall. according to the results 69.6 percent of visitors were rea...

I derive the expressions for the CP-violating asymmetry arising from interference between mixed and direct decays in the Υ(4S) system, for the case in which only one of the B decay times is observed, integrating over the decay time of the other B. I observe that neither the difference of the decay times ∆t, nor even their time-ordering, need be detected. A technique for measurement of the CP-vi...

Recent dual process models proposed that the strength of competing intuitions determines reasoning performance. A key challenge at this point is to search for boundary conditions; identify cases in which the strength of different intuitions will be weaker/stronger. Therefore, we ran two studies with the two-response paradigm in which people are asked to give two answers to a given reasoning pro...

Slip-induced fall accidents have been recognized as a serious threat to the health of the elderly.The objective of the current study was to investigate the aging effect on the biomechanical reactions of both perturbed foot and unperturbed foot to the unexpected slips. Nineteen younger (mean age: 25.0 years old) and twenty-one older (mean age: 71.2 years old) adults were involved in a laboratory...