Results 61 to 70 of about 435,363 (293)

Fast domain wall propagation under an optimal field pulse in magnetic nanowires [PDF]

, 2010
We investigate field-driven domain wall (DW) propagation in magnetic nanowires in the framework of the Landau-Lifshitz-Gilbert equation. We propose a new strategy to speed up the DW motion in a uniaxial magnetic nanowire by using an optimal space ...
A. P. Malozemoff, J. Schliemann, Z. Z. Sun   +2 more
core   +2 more sources

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri, Isabella Dallasta, Ciaran Stone, Sophia Girgenti, Neda Gould, Rafael H. Llinas, Jonathan Z. Simon, Elisabeth Breese Marsh   +7 more
wiley   +1 more source

The Effect of an Angiotensin Receptor Blocker on Arterial Stiffness in Type 2 Diabetes Mellitus Patients with Hypertension [PDF]

Diabetes & Metabolism Journal, 2011
BackgroundHypertension and type 2 diabetes mellitus are major risk factors for cardiovascular disease. This study analyzed the changes in central aortic waveforms and pulse wave velocity as well as related parameters after treatment with valsartan, an ...
Ji Hyun Kim, Su Jin Oh, Jung Min Lee, Eun Gyoung Hong, Jae Myung Yu, Kyung Ah Han, Kyung Wan Min, Hyun Shik Son, Sang Ah Chang   +8 more
doaj   +1 more source

On Two Models of the Light Pulse Delay in a Saturable Absorber

, 2011
A comparative analysis of two approaches to description of the light modulation pulse delay in a saturable absorber is presented. According to the simplest model, the delay of the optical pulse is a result of distortion of its shape due to absorption ...
A. C. Selden, A. C. Selden, A. C. Selden, A. C. Selden, A. Kasapi, B. Macke, E. B. Aleksandrov, G. G. Kozlov, H. Su, H. W. Mocker, H. Wang, L. V. Hau, L. W. Hillman, M. Hercher, M. S. Lepeshkin, M. S. Lepeshkin, M. S. Malcuit, P. C. Ku, P. W. Milonni, P. Wu, R. Boyd, R. N. Shakhmuratov, R. W. Boyd, S. E. Schwarz, S. Stepanov, V. S. Zapasskii, V. S. Zapasskiĭ, V. S. Zapasskiĭ, V. S. Zapasskiĭ, W. Happer   +29 more
core   +1 more source

Radial Velocity Confirmation of a Binary Detected from Pulse Timings [PDF]

, 2011
A periodic variation in the pulse timings of the pulsating hot subdwarf B star CS 1246 was recently discovered via the O-C diagram and suggests the presence of a binary companion with an orbital period of two weeks.
Barlow, Brad N., Clemens, J. Christopher, Dunlap, Bart H.   +2 more
core   +3 more sources

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp, Ludwig Karrasch, Helena Breitenstein, Andreas Straube, Katharina Kamm   +4 more
wiley   +1 more source

Brachial-ankle pulse wave velocity and symptomatic cerebral infarction in patients with type 2 diabetes: a cross-sectional study

Cardiovascular Diabetology, 2003
Background Recently a new automatic device that measures brachial-ankle pulse wave velocity using an oscillometric method has been developed. However, the practical significance of brachial-ankle pulse wave velocity measurement remains uncertain.
Muramatsu Chie, Mitsuhashi Naomi, Kubo Sayaka, Onuma Tomio, Ogawa Osamu, Kawamori Ryuzo   +5 more
doaj   +1 more source

Signal velocity, causality, and quantum noise in superluminal light pulse propagation

, 2001
We consider pulse propagation in a linear anomalously dispersive medium where the group velocity exceeds the speed of light in vacuum (c) or even becomes negative. A signal velocity is defined operationally based on the optical signal-to-noise ratio, and
A. Dogariu, A. Dogariu, A. Kuzmich, B. E. A. Saleh, B. Segev, C. M. Caves, E. Desurvire, G. Diener, H. A. Haus, J. Oppenheim, L. Brillouin, L. J. Wang, L. J. Wang, L. Mandel, P. W. Milonni, P. W. Milonni, R. Y. Chiao, R. Y. Chiao, R. Y. Chiao, S. Chu, W. K. Wooters, Y. Aharonov, Y. Yamamoto   +22 more
core   +1 more source

Coherent Amplification of Optical Pulses in Metamaterials [PDF]

, 2009
In this paper we theoretically study propagation of steady state ultrashort pulse in dissipative medium. We considered two cases (i) medium consists of lossy metallic nanostructures embedded into a gain material and (ii) the gain material is embedded ...
Gabitov, Ildar R., Kennedy, Bridget, Maimistov, Andrei I.   +2 more
core   +1 more source

Pulse velocities in initially stressed arteries

Journal of Biomechanics, 1988
In this short paper, treating the artery as a thick walled cylindrical shell and employing the large deformation theory, an analytical expression for the pulse wave speed is obtained and the effect of lumen pressure and the axial stretch on the wave speed is discussed.
openaire   +3 more sources