Results 61 to 70 of about 1,376,473 (288)

The relationship between spatial configuration and functional connectivity of brain regions revisited

eLife, 2019
Previously we showed that network-based modelling of brain connectivity interacts strongly with the shape and exact location of brain regions, such that cross-subject variations in the spatial configuration of functional brain regions are being ...
Janine Diane Bijsterbosch, Christian F Beckmann, Mark W Woolrich, Stephen M Smith, Samuel J Harrison   +4 more
doaj   +1 more source

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li, Ronghua Hong, Hua You, Feiping Xu, Qingjun Zhang, Yiwen Lin, Yuting Su, Danmei Lan, Lingjing Jin, Junhui She   +9 more
wiley   +1 more source

Approximation of classes B^ω_p,θ of periodic functions of several variables by polynomials with spectrum from cubic areas (in Ukrainian) [PDF]

Математичні Студії, 2011
We have obtained exact order estimates for error of approximation of classes B^ω_p,θ of periodic functions of several variables by trigonometric polynomials with spectrum from cubic areas.
S. A. Stasyuk
doaj  

On generalized characteristics of smoothness of functions and on average $\nu$-widths in the space $L_2(\mathbb{R})$

Researches in Mathematics, 2019
Estimates above and estimates below have been obtained for Kolmogorov, linear and Bernshtein average $\nu$-widths on the classes of functions $W^r (\omega^w, \Psi)$, where $r \in \mathbb{N}$, $\omega^w(f)$ is the generalized characteristic of smoothness ...
S.B. Vakarchuk, M.B. Vakarchuk
doaj   +1 more source

Modified energy for split-step methods applied to the linear Schr\"odinger equation [PDF]

, 2009
We consider the linear Schr\"odinger equation and its discretization by split-step methods where the part corresponding to the Laplace operator is approximated by the midpoint rule. We show that the numerical solution coincides with the exact solution of
Debussche, Arnaud, Faou, Erwan
core   +4 more sources

Quasi-normal frequencies: Key analytic results

, 2011
The study of exact quasi-normal modes [QNMs], and their associated quasi-normal frequencies [QNFs], has had a long and convoluted history - replete with many rediscoveries of previously known results.
A Galindo, A Ghosh, A Messiah, AI Kheyfits, AJM Medved, AJM Medved, AZ Capri, BH Brandsen, C Eckart, E Berti, E Merzbacher, G Baym, G Poschl, GA Natanson, HP Nollert, HR Beyer, J Natario, J Skakala, J Skakala, J Skakala, KD Kokkotas, L Hulthen, LD Landau, LI Schiff, M Visser, Matt Visser, MF Manning, MF Manning, N Rosen, ND Birell, O Dreyer, P Boonserm, P Boonserm, P Boonserm, P Boonserm, P Boonserm, Petarpa Boonserm, PM Morse, PM Morse, R Shankar, RL Liboff, RM Corless, S Das, S Gasiorowicz, T Padmanabhan, T Tietz, TR Choudhury, VV Nesterenko, W Hua   +48 more
core   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Factors influencing U.S. women’s interest and preferences for breast cancer risk communication: a cross-sectional study from a large tertiary care breast imaging center

BMC Women's Health
Background Breast imaging clinics in the United States (U.S.) are increasingly implementing breast cancer risk assessment (BCRA) to align with evolving guideline recommendations but with limited uptake of risk-reduction care.
Jessica D. Austin, Emily James, Rachel L Perez, Gina L. Mazza, Juliana M. Kling, Jessica Fraker, Lida Mina, Imon Banerjee, Richard Sharpe, Bhavika K. Patel   +9 more
doaj   +1 more source

Interval estimation of genetic susceptibility for retrospective case-control studies

BMC Genetics, 2004
Background This article describes classical and Bayesian interval estimation of genetic susceptibility based on random samples with pre-specified numbers of unrelated cases and controls.
Meng Zhaoling, Zaykin Dmitri V, Ghosh Sujit K   +2 more
doaj   +1 more source

Dynamical fermions as a global correction

, 2003
In the simplified setting of the Schwinger model we present a systematic study on the simulation of dynamical fermions by global accept/reject steps that take into account the fermion determinant.
Bardeen, Bietenholz, Bode, Creutz, de Forcrand, DeGrand, Duane, Duncan, Francesco Knechtli, Frezzotti, Frezzotti, Gattringer, Golub, Gottlieb, Hasenbusch, Hasenfratz, Hasenfratz, Hasenfratz, Hasenfratz, Hasenfratz, Joo, Kalkreuter, Knechtli, Lang, Narayanan, Neuberger, Orginos, Press, Ulli Wolff   +28 more
core   +1 more source