University of Texas at Arlington

About: University of Texas at Arlington is a education organization based out in Arlington, Texas, United States. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 11758 authors who have published 28598 publications receiving 801626 citations. The organization is also known as: UT Arlington & University of Texas-Arlington.

Prevalence of psychiatric disorders in patients with chronic disabling occupational spinal disorders.

Abstract: Study design A prevalence study. Objectives To assess the prevalence of psychiatric disorders among a large group of patients with chronic disabling occupational spinal disorders (CDOSDs), using a reliable and valid diagnostic instrument. Summary of background data Although unrecognized and untreated psychiatric disorders have been found to interfere with successful treatment of CDOSD patients, little data are currently available regarding the psychiatric characteristics of patients claiming work-related injuries that result in CDOSDs. Methods Psychiatric disorders in a consecutive group of CDOSD patients (n = 1,323) attending a tertiary referral center for patients with CDOSD were diagnosed using the Diagnostic and Statistical Manual of Mental Disorders. RESULTS.: Overall prevalence of psychiatric disorders was found to be significantly elevated in CDOSD patients compared with base rates in the general population. A majority (65%) of patients were diagnosed with at least one current disorder (not including Pain Disorder, which is nearly universal in this population), compared with only 15% of the general population. Major Depressive Disorder (56%), Substance Use Disorders (14%), Anxiety Disorders (11%), and Axis II Personality Disorders (70%) were the most common diagnoses. Conclusions Clinicians treating CDOSD patients must be aware of the high prevalence of psychiatric disorders in this population. They must also be prepared to use mental health professionals to assist them in identifying and stabilizing these patients. Failure to follow a biopsychosocial approach to treatment will likely contribute to prolonged disability in a substantial number of these chronic pain patients.

Measurement of the distributions of event-by-event flow harmonics in lead-lead collisions at √SNN = 2.76 TeV with the ATLAS detector at the LHC

Abstract: The distributions of event-by-event harmonic flow coefficients v (n) for n = 2- 4 are measured in = 2.76 TeV Pb + Pb collisions using the ATLAS detector at the LHC. The measurements are performed u ...

Service encounter satisfaction: conceptualized

Abstract: Presents a model of service encounter satisfaction offering conceptual and pragmatic advantages over the dominant disconfirmation paradigm. Expectations are compared with performance, at three separate stages, which directly combine into one overall consumer service encounter judgment. Offers service practitioners increased insight into understanding consumers′ satisfaction processes.

Search for electroweak production of supersymmetric particles in final states with two or three leptons at √s=13 TeV with the ATLAS detector

Abstract: A search for the electroweak production of charginos, neutralinos and sleptons decaying into final states involving two or three electrons or muons is presented. The analysis is based on 36.1 fb$^{-1}$ of $\sqrt{s}=13$ TeV proton–proton collisions recorded by the ATLAS detector at the Large Hadron Collider. Several scenarios based on simplified models are considered. These include the associated production of the next-to-lightest neutralino and the lightest chargino, followed by their decays into final states with leptons and the lightest neutralino via either sleptons or Standard Model gauge bosons, direct production of chargino pairs, which in turn decay into leptons and the lightest neutralino via intermediate sleptons, and slepton pair production, where each slepton decays directly into the lightest neutralino and a lepton. No significant deviations from the Standard Model expectation are observed and stringent limits at 95% confidence level are placed on the masses of relevant supersymmetric particles in each of these scenarios. For a massless lightest neutralino, masses up to 580 GeV are excluded for the associated production of the next-to-lightest neutralino and the lightest chargino, assuming gauge-boson mediated decays, whereas for slepton-pair production masses up to 500 GeV are excluded assuming three generations of mass-degenerate sleptons.

Microbial magnesium transport: unusual transporters searching for identity

Abstract: Mg2+ is unique among biological cations because of its charge density and solution chemistry. This is abundantly reflected in its transport systems, studied primarily in Salmonella typhimurium. The constitutively expressed CorA transport system is the primary Mg2+ influx pathway for the Bacteria and the Archaea. Its structure of a large N-terminal soluble periplasmic domain with three transmembrane segments at the C-terminus is unique among membrane carriers, and its protein sequence bears no resemblance to other known proteins. The MgtE transport system can also mediate Mg2+ uptake, but whether this is its primary function is not known. MgtE also lacks homology to other known proteins. In contrast, the MgtA and MgtB Mg2+ transport systems of enteric bacteria are P-type ATPases by sequence homology, mediating Mg2+ influx with, rather than against, the Mg2+ electrochemical gradient. They are closely related to mammalian Ca2+-ATPases. Expression of MgtA and MgtB is under the control of the PhoPQ two-component regulatory system, important in bacterial virulence. In S. typhimurium, MgtB is encoded by a two-gene operon mgtCB; the function of the MgtC protein is unknown, and it lacks close homologues. The ligand for the PhoQ membrane sensor kinase is Mg2+ and, at decreased extracellular Mg2+ concentrations, transcription of mgtA and mgtCB are enormously induced. All three genes are also induced upon S. typhimurium invasion of epithelial or macrophage cells. Mutation of these genes has no effect on invasion efficiency, but an insertion in mgtC renders S. typhimurium essentially avirulent in the mouse. The physiological roles of the known Mg2+ transport systems are not yet completely defined. Nonetheless, the singular sequence and apparent structure of the CorA and MgtE transport proteins, the complex regulation of MgtA, MgtB and MgtC and their involvement in pathogenesis suggests that further study will be rewarding.