Results 51 to 60 of about 2,732,958 (292)

Modified Scaling Relation for the Random-Field Ising Model

, 1997
We investigate the low-temperature critical behavior of the three dimensional random-field Ising ferromagnet. By a scaling analysis we find that in the limit of temperature $T \to 0$ the usual scaling relations have to be modified as far as the exponent $
Aharony, Belanger, Berker, Bricmont, Esser, Falicov, Ford, Gofman, Gofman, Grinstein, Imbrie, Imry, J. Esser, K.D. Usadel, Mezard, Nattermann, Ogielski, Picard, Rieger, Schneider, Schwartz, Swift, U. Nowak, Villain   +23 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

Camera matching based on spatiotemporal activity and conditional random field model

IET Computer Vision, 2014
In this study, the authors investigate how to find correspondences (pixel‐level matches) between two video sequences with overlapping views, recorded by different stationary uncalibrated video cameras, without imposing any constrains on, or requiring any
Liu Xiaokai, Wang Hongyu, Gao Hongbo
doaj   +1 more source

Anisotropic Heisenberg model for the mixed spin-3/2 and spin-1/2 under random crystal field

Condensed Matter Physics, 2021
Thermodynamic properties of the mixed spin-3/2 and spin-1/2 Heisenberg model are examined within the Oguchi approximation in the presence of a random crystal-field (RCF).
D. Sabi Takou, M. Karimou, F. Hontinfinde, E. Albayrak   +3 more
doaj   +1 more source

The random-field specific heat critical behavior at high magnetic concentration: Fe(0.93)Zn(0.07)F2

, 1998
The specific heat critical behavior is measured and analyzed for a single crystal of the random-field Ising system Fe(0.93)Zn(0.07)F2 using pulsed heat and optical birefringence techniques.
Belanger, Belanger, Belanger, Belanger, Belanger, Birgeneau, Cardy, D.P Belanger, Dow, Ferré, Han, Imry, Jaccarino, Kleemann, Pollak, Ramos, Raposo, Slanič, Z Slanič   +18 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

On Random Field Induced Ordering in the Classical XY Model

, 2010
Consider the classical XY model in a weak random external field pointing along the $Y$ axis with strength $\epsilon$. We study the behavior of this model as the range of the interaction is varied.
A. Aharony, A.C.D. Enter van, A.C.D. Enter van, A.C.D. Enter van, D. Mermin, D.A. Abanin, E. Presutti, H. Kesten, J. Wehr, J.T. Chayes, L. Sanchez-Palencia, M. Aizenman, Nicholas Crawford, Y. Imry   +13 more
core   +1 more source

Experiments on the random field Ising model [PDF]

, 1997
New advances in experiments on the random-field Ising model, as realized in dilute antiferromagnets, have brought us much closer to a full characterization of the static and dynamic critical behavior of the unusual phase transition in three dimensions (d=
Belanger, D. P.
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source