Results 41 to 50 of about 25,555 (168)
Arquivos de GastroenterologiaBACKGROUND: Abdominal tuberculosis is an increasing problem in developing world. OBJECTIVE: The objective of the study was to describe the clinical presentations, drug resistance pattern and treatment outcomes of abdominal tuberculosis in Western ...
Suhas UDGIRKAR +5 more
doaj +1 more source
Cisto pericárdico gigante: relato de caso Giant pericardial cyst: case report
Brazilian Journal of Cardiovascular Surgery, 2007 Os cistos pericárdicos são anomalias congênitas incomuns, sendo a maioria assintomática e diagnosticadas incidentalmente na radiografia de tórax. Os cistos gigantes são raros, havendo poucos relatos concernentes à sua história natural, apresentação ...
Vinicius José da Silva Nina +3 more
doaj +1 more source
Microscopic Theory of Josephson Mesoscopic Constrictions [PDF]
, 1993 We present a microscopic theory for the d.c. Josephson effect in model mesoscopic constrictions. Our method is based on a non-equilibrium Green function formalism which allows for a self-consistent determination of the order parameter profile along the constriction. The various regimes defined by the different length scales (Fermi wavelength $\lambda_F$
arxiv +1 more source
On transport in quantum Hall systems with constrictions [PDF]
Europhysics Letters, Vol. 80, 17003 (2007)., 2006 Motivated by recent experimental findings, we study transport in a simple phenomenological model of a quantum Hall edge system with a gate-voltage controlled constriction lowering the local filling factor. The current backscattered from the constriction is seen to arise from the matching of the properties of the edge-current excitations in the ...
arxiv +1 more source
Myocardial Protective Effect of Tezosentan, an Endothelin Receptor Antagonist, for Ischemia-Reperfusion Injury in Experimental Heart Failure Models [PDF]
, 2009 The myocardial protective effects of endothelin antagonist in ischemic cardiomyopathy (ICMP), doxorubicin-induced cardiomyopathy (DOX) and pressure-overload hypertrophy by transverse aortic constriction (TAC) models have been predicted to be different ...
Arai +38 more
core +2 more sources
Theory of AC Josepson Effect in Superconducting Constrictions [PDF]
, 1997 We have developed a microscopic theory of ac Josephson effect in short ballistic superconducting constrictions with arbitrary electron transparency and in constrictions with diffusive electron transport. The theory is valid for arbitrary miscroscopic structure of the superconducting electrodes of the constriction. As applications of the theory we study
arxiv +1 more source
A quantum point contact for neutral atoms [PDF]
Physical Review Letters 83 (19), 3762 (1999), 1999 We show that the conductance of neutral atoms through a tightly confining waveguide constriction is quantized in units of lambda_dB^2/pi, where lambda_dB is the de Broglie wavelength of the incident atoms. Such a constriction forms the atom analogue of an electron quantum point contact and is an example of quantum transport of neutral atoms in an ...
arxiv +1 more source
Controlling hysteresis in superconducting constrictions with a resistive shunt [PDF]
Fast Track Communications in Supercond. Sci. Technol. 28 (2015)
072003, 2015 We demonstrate control of the thermal hysteresis in superconducting constrictions by adding a resistive shunt. In order to prevent thermal relaxation oscillations, the shunt resistor is placed in close vicinity of the constriction, making the inductive current-switching time smaller than the thermal equilibration time.
arxiv +1 more source
The Impediment of Impotency and the Condition of Male Impotence: A Canonical-Medical Study: Medical Considerations [PDF]
, 1959 To present the problems involved in the matter of male impotence as related to the validity of marriage, the canonical considerations, as prepared by Rev. Paul v.
Harrington, Paul V. +1 more
core +1 more source
Pupillometry evaluation of melanopsin retinal ganglion cell function and sleep-wake activity in pre-symptomatic Alzheimer's disease [PDF]
, 2019 BACKGROUND: Melanopsin-expressing retinal ganglion cells (mRGCs), intrinsically photosensitive RGCs, mediate the light-based pupil response and the light entrainment of the body's circadian rhythms through their connection to the pretectal nucleus and ...
Oh AJ, Amore G, Sultan W, Asanad S, Park JC, Romagnoli M, La Morgia C, Karanjia R, Harrington MG, Sadun AA.
core +1 more source