Results 61 to 70 of about 272,721 (287)

“Hot Septum” Sign of Constrictive Pericarditis

open access: yesJACC: Case Reports, 2020
In patients with constrictive pericarditis, a characteristic reduction in the regional longitudinal strain seen in the areas of the left ventricular free wall and relative sparing of the septal longitudinal strain values create an easily recognizable ...
Edgar Argulian, MD MPH   +1 more
doaj   +1 more source

Microscopic Theory of Josephson Mesoscopic Constrictions

open access: yes, 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 ...
A. Furusaki   +29 more
core   +1 more source

A Spatially Resolved View on the Aging Substantia nigra: An Exploratory Proteomic Study

open access: yesAdvanced Biology, EarlyView.
Although aging is the most important risk factor for several neurodegenerative diseases, the molecular effects of physiological aging are still understudied. By applying spatially‐resolved proteomic analyses of the human substantia nigra pars compacta, alterations in vesicular trafficking and mitochondrial proteins are observed, as well as reduced ...
Britta Eggers   +10 more
wiley   +1 more source

Magnetic domain walls in constrained geometries

open access: yes, 2004
Magnetic domain walls have been studied in micrometer-sized Fe20Ni80 elements containing geometrical constrictions by spin-polarized scanning electron microscopy and numerical simulations. By controlling the constriction dimensions, the wall width can be
A. Bischof   +5 more
core   +1 more source

Non-linear spin to charge conversion in mesoscopic structures [PDF]

open access: yes, 2011
Motivated by recent experiments [Vera-Marun et al., arXiv:1109.5969], we formulate a non-linear theory of spin transport in quantum coherent conductors.
Jaroslav Fabian   +3 more
core   +2 more sources

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych   +7 more
wiley   +1 more source

Spectroscopy of the Potential Profile in a Ballistic Quantum Constriction

open access: yes, 1994
We present a theory for the nonlinear current-voltage characteristics of a ballistic quantum constriction. Nonlinear features first develop because of above-barrier reflection from the potential profile, created by impurities in the vicinity of the ...
A. M. Zagoskin   +15 more
core   +1 more source

Performance limits of graphene-ribbon-based field effect transistors [PDF]

open access: yes, 2007
The performance of field effect transistors based on an single graphene ribbon with a constriction and a single back gate are studied with the help of atomistic models.
Brey, L.   +3 more
core   +3 more sources

Liquid Crystal Elastomers Under Confinement: A Review of Template‐Based Fabrication and Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Template‐assisted confinement offers powerful ways to control the alignment, structure, and function of liquid crystal elastomers. This review highlights several templating strategies and details how geometry and interfaces shape material responses.
Meng Zhang   +7 more
wiley   +1 more source

Time-dependent and force-dependent vasoreactivity of isolated human umbilical arteries [PDF]

open access: yesScripta Medica, 2020
Background/Aim: There have been different experimental conditions for in vitro studies on human umbilical arteries (HUA) in tissue bath system. This diversity was mainly reflected in variables such as stretching tension, incubation period and initial ...
Đukanović Đorđe   +2 more
doaj  

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