1,596 research outputs found
Sex differences in the prediction of the effectiveness of paroxetine for patients with major depressive disorder identified using a receiver operating characteristic curve analysis for early response [Corrigendum]
No full textTomita T, Norio YF, Sato Y, et al. Neuropsychiatr Dis Treat. 2014;10:599–606.On page 599, there is an error in the author list "Yasui-Furukori Norio" should read "Norio Yasui-Furukori".Read the original articl
Search for missing charmonium states in B-meson decays
No full textThe recent progress in experiments at B-factories suggests an opportunity to search for the missing charmonium states eta'(c)(2(1)S(0)) and h(c)(1 P-1(1)). The feasibility of such a search in B-meson decays are discussed. (C) 2002 Elsevier Science B.V All rights reserved.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000176725100002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Physics, MultidisciplinarySCI(E)6ARTICLE1-26-1053
Am J Trop Med Hyg
No full textYellow fever (YF) vaccine-associated serious adverse events and changing YF epidemiology have challenged healthcare providers to vaccinate only travelers whose risk of YF during travel is greater than their risk of adverse events. We describe the travel characteristics and YF vaccine use among US travelers visiting Global TravEpiNet clinics from January of 2009 to March of 2011. Of 16,660 travelers, 5,588 (34%) had itineraries to areas with risk of YF virus transmission. Of those travelers visiting one country with YF risk (N = 4,517), 71% were vaccinated at the visit, and 20% were presumed to be immune from prior vaccination. However, travelers visiting friends and relatives (odds ratio [OR] = 2.57, 95% confidence interval [95% CI] = 1.27-5.22) or going to Nigeria (OR = 3.01, 95% CI = 1.37-6.62) were significantly more likely to decline vaccination. To optimize YF vaccine use, clinicians should discuss an individual's risk-benefit assessment of vaccination and close knowledge gaps regarding vaccine use among at-risk populations.2013U01CK000175/CK/NCEZID CDC HHS/United StatesU19CI000514/CI/NCPDCID CDC HHS/United States1073
Ultralow-frequency shear modes of 2-4 layer graphene observed in scroll structures at edges
No full textConnection between the closeness of classical orbits and the factorization of the radial Schrodinger equation
No full textIt is shown that the Runge-Lenz vector of a hydrogen atom is equivalent to the raising and lowering operators derived from the factorization of the radial Schrodinger equation. A similar situation exists for an isotropic harmonic oscillator. It is seen that there exists an intimate relation between the conserved quantities responsible for the closeness of classical orbits on the one side and the quantum-mechanical raising and lowering operators on the other side, which is physically connected with the dynamical symmetry of the system considered. Some discussions are made about the factorization of a one-dimensional system. [S1050-2947(98)06308-2].http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000075386200016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701OpticsPhysics, Atomic, Molecular & ChemicalSCI(E)5ARTICLE2862-8685
MOLECULAR LINE STUDIES OF DENSE CORE MOTIONS
No full textMolecular lines have revealed various supporting motions in dense cores. Line widths and emission region sizes of NH3 and CS in the same kind of cores or of the same line in cores with or without sources are different and can not be explained with the line width- size relationship. Outflows in dense cores show rich characteristics which can account for the NH3 emission difference between the two kinds of the cores; CS emission is consistent with the chemical effects in shocked regions. Rotation exists in both kinds of cores and may be related to the observed polarities and collimations of outflows.Astronomy & AstrophysicsSCI(E)0ARTICLE150217-22
A mathematical model for describing the mechanical behaviour of root canal instruments
No full textZhang EW, Cheung GSP, Zheng YF. A mathematical model for describing the mechanical behaviour of root canal instruments. International Endodontic Journal, 44, 72-76, 2011.Aim The purpose of this study was to establish a general mathematical model for describing the mechanical behaviour of root canal instruments by combining a theoretical analytical approach with a numerical finite-element method.Method Mathematical formulas representing the longitudinal (taper, helical angle and pitch) and cross-sectional configurations and area, the bending and torsional inertia, the curvature of the boundary point and the (geometry of) loading condition were derived. Torsional and bending stresses and the resultant deformation were expressed mathematically as a function of these geometric parameters, modulus of elasticity of the material and the applied load. As illustrations, three brands of NiTi endodontic files of different cross-sectional configurations (ProTaper, Hero 642, and Mani NRT) were analysed under pure torsion and pure bending situation by entering the model into a finite-element analysis package (ANSYS).Results Numerical results confirmed that mathematical models were a feasible method to analyse the mechanical properties and predict the stress and deformation for root canal instruments during root canal preparation.Conclusions Mathematical and numerical model can be a suitable way to examine mechanical behaviours as a criterion of the instrument design and to predict the stress and strain experienced by the endodontic instruments during root canal preparation. © 2010 International Endodontic Journal.link_to_subscribed_fulltex
(Ti,Al)N Film On Normalized T8 Carbon Tool Steel Prepared By Pulsed High Energy Density Plasma Technique
No full textUnder optimized operating parameters, a hard and wear resistant ( Ti,Al)N film is prepared on a normalized T8 carbon tool steel substrate by using pulsed high energy density plasma technique. Microstructure and composition of the film are analysed by x-ray diffraction, x-ray photoelectron spectroscopy, Auger electron spectroscopy and scanning electron microscopy. Hardness profile and tribological properties of the film are tested with nano-indenter and ring-on-ring wear tester, respectively. The tested results show that the microstructure of the film is dense and uniform and is mainly composed of ( Ti,Al)N and AlN hard phases. A wide transition interface exists between the film and the normalized T8 carbon tool steel substrate. Thickness of the film is about 1000 nm and mean hardness value of the film is about 26GPa. Under dry sliding wear test conditions, relative wear resistance of the ( Ti,Al)N film is approximately 9 times higher than that of the hardened T8 carbon tool steel reference sample. Meanwhile, the ( Ti,Al)N film has low and stable friction coefficient compared with the hardened T8 carbon tool steel reference sample
Mobile phone addiction in Tibetan and Han Chinese adolescents
No full textPURPOSE: To compare mobile phone addiction (MPA) patterns between Tibetan and Han adolescents in China. DESIGN AND METHODS: The study was carried out in two provinces of China. The Mobile Phone Addiction Scale (MPAS) was used to assess MPA. FINDINGS: Seven hundred and five Tibetan and 606 Han students participated in the study. The MPAS total score was 24.4 ± 11.4 in the whole sample; 27.3 ± 10.8 and 20.9 ± 11.2 in Tibetan and Han students, respectively. Quality of life (QOL) in the physical, psychological, social, and environmental domains was negatively associated with MPA. PRACTICE IMPLICATIONS: Compared with Han students, Tibetan students were found to have more severe MPA. Given its negative impact on QOL, appropriate measures for the prevention of MPA should be developed, particularly for Tibetan middle school students
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