We report the discovery of a highly coherent oscillation in a type-I X-ray burst observed from 4U 1916−053 by the Rossi X-ray Timing Explorer (RXTE ). The oscillation was most strongly detected ≈ 1 s after the burst onset at a frequency of 269.3 Hz, and it increased in frequency over the following 4 seconds of the burst decay to a maximum of ≃272 Hz. The total measured drift of 3.58 ± 0.41 Hz (...

Background: Impaired γ-aminobutyric acid (GABA) signaling may contribute to the emergence of cognitive deficits and subcortical dopaminergic hyperactivity in patients with schizophrenia and related psychotic disorders. Against this background, it has been proposed that pharmacological interventions targeting GABAergic dysfunctions may prove useful in correcting such cognitive impairments and do...

The synthetic glucocorticoid dexamethasone markedly decreases the invasiveness of HT-1080 human fibrosarcoma cells. We show here that dexamethasone treatment of HT-1080 cell aggregates more than doubles their cohesivity from 3.9 to 9.7 dyne/cm. Western blot analysis shows a corresponding increase in cadherin expression. This was accompanied by an increase in the rate of calcium-dependent aggreg...

The duration of influenza virus shedding in HIV-infected adults is unknown and could affect quarantine and treatment recommendations. Participants were monitored for influenza-like illness (ILI), defined as fever and cough or sore throat, using weekly telephone audio computer-assisted self-interviews. Those with ILI were further evaluated at three HIV specialty clinics. For those with influenza...

Bacillus rubiinfantis sp. nov. strain mt2(T) is the type strain of B. rubiinfantis sp. nov., isolated from the fecal flora of a child with kwashiorkor in Niger. It is Gram-positive facultative anaerobic rod belonging to the Bacillaceae family. We describe the features of this organism alongside the complete genome sequence and annotation. The 4 311 083 bp long genome (one chromosome but no plas...

AUTHOR DeBenedictis, John A. -t TITLE Engineering Evaluation of the Optacon ( Optical to TActile_CONverter). Final Report. INSTITUTION Franklin InstiResearch Labs., Philadelphia, Pa. SPONS AGENCY National Inst. of Education (DHEW), Washington, D.C. Office of Administration and'Mamagement. Contracts and Grants Div. AIRPORT NO FIRL-F-C-305 PUB DATE Sep 73 CONTRACT OEC-0-72-5181 NOTE 108p.; For re...

We demonstrate that the recent paper by Jana and Roy entitled “Non-Hermitian quantum mechanics with minimal length uncertainty” [SIGMA 5 (2009), 083, 7 pages, arXiv:0908.1755] contains various misconceptions. We compare with an analysis on the same topic carried out previously in our manuscript [arXiv:0907.5354]. In particular, we show that the metric operators computed for the deformed non-Her...

BACKGROUND Impaired γ-aminobutyric acid (GABA) signaling may contribute to the emergence of cognitive deficits and subcortical dopaminergic hyperactivity in patients with schizophrenia and related psychotic disorders. Against this background, it has been proposed that pharmacological interventions targeting GABAergic dysfunctions may prove useful in correcting such cognitive impairments and dop...