Results 51 to 60 of about 468,934 (298)

Transient convective instabilities in directional solidification [PDF]

, 2010
We study the convective instability of the melt during the initial transient in a directional solidification experiment in a vertical configuration. We obtain analytically the dispersion relation, and perform an additional asymptotic expansion for large ...
Meca, Esteban, Ramirez-Piscina, Laureano
core   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Numerical simulations of the Accretion-Ejection Instability in magnetised accretion disks [PDF]

, 2001
The Accretion-Ejection Instability (AEI) described by Tagger & Pellat (1999) is explored numerically using a global 2d model of the inner region of a magnetised accretion disk.
Armitage, Balbus, Blandford, Brandenburg, Brandenburg, Cannizzo, Cannizzo, Chandrasekhar, Hawley, Hawley, Hawley, Hawley, Lovelace, M. Tagger, Machida, Masset, Miller, Mirabel, Muno, Narayan, Papaloizou, Pringle, S. E. Caunt, Shakura, Sobczak, Spruit, Spruit, Stone, Stone, Tagger, Tagger, van Leer, Velikhov, Znajek   +33 more
core   +3 more sources

Unraveling the Molecular Mechanisms of Glioma Recurrence: A Study Integrating Single‐Cell and Spatial Transcriptomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Glioma recurrence severely impacts patient prognosis, with current treatments showing limited efficacy. Traditional methods struggle to analyze recurrence mechanisms due to challenges in assessing tumor heterogeneity, spatial dynamics, and gene networks.
Lei Qiu, Yinjiao Fei, Jiaxuan Ding, Kexin Shi, Jinyan Luo, Yuchen Zhu, Xingjian Sun, Gefei Jiang, Yuandong Cao, Weilin Xu, Shu Zhou   +10 more
wiley   +1 more source

Kelvin-Helmholtz Billows Induced by Shear Instability along the North Passage of the Yangtze River Estuary, China

Journal of Marine Science and Engineering, 2019
Kelvin-Helmholtz (K-H) instability plays a significant role in mixing. To investigate the existence of K-H instability along the North Passage of the Yangtze River Estuary, the non-hydrostatic model NHWAVE is utilized to simulate the fresh-salt water ...
Jian Shi, Chaofeng Tong, Jinhai Zheng, Chi Zhang, Xiangyu Gao   +4 more
doaj   +1 more source

Lumbo-sacral Junction Instability by Traumatic Sacral Fractures: Isler’s Classification Revisited – A Narrative Review

Global Spine Journal, 2022
Study Design Narrative review Objectives Multiple classifications have been proposed for sacral fractures since the last century. While initial classifications focussed on vertical and transverse fractures, the recent fracture classifications encompass ...
Rishi M Kanna MS, MRCS, FNB, Shanmuganathan Rajasekaran PhD, Gregory D Schroeder MD, Klaus Schnake MD, Alexander R Vaccaro MD, PhD, MBA, Lorin Benneker MD, Cumhur F Oner MD, PhD, Frank Kandziora MD, PhD, Emiliano Vialle MD   +8 more
doaj   +1 more source

Linear dynamics of weakly viscous accretion disks: A disk analog of Tollmien-Schlichting waves

, 2008
This paper discusses new perspectives and approaches to the problem of disk dynamics where, in this study, we focus on the effects of viscous instabilities influenced by boundary effects.
Afshordi, Baines, Baines, Balbus, Balmforth, Balmforth, Balmforth, Barranco, Bayly, Bodo, Carpenter, Case, Chagelishvili, Charney, Davies, Doering, Dubrulle, G. Shaviv, Goldreich, Goldreich, Hayashi, Hoskins, Ioannaou, Ji, Johnson, Joseph, Kato, Kersalé, King, Klahr, Kleiber, Latter, Lesur, Li, Lions, Lithwick, Mukhopadhyay, O. M. Umurhan, Ogilvie, Ogilvie, Ogilvie, Papaloizou, Petersen, Petersen, Regev, Richard, Sakai, Shakura, Shalybkov, Spiegel, Stewartson, Tevzadze, Umurhan, Umurhan, Umurhan, Umurhan, Yecko, Yecko   +57 more
core   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Experimental studies on the photoelectron instability in the Beijing Electron Positron Collider

Physical Review Special Topics. Accelerators and Beams, 2002
A vertical coupled-bunch instability was observed for a positron beam at the Beijing Electron Positron Collider (BEPC). The experimental results show that the instability has similar characteristics as that observed in the Photon Factory of KEK several ...
Z. Y. Guo, H. Huang, S. P. Li, D. K. Liu, L. Ma, Q. Qin, J. Q. Wang, S. H. Wang, G. Xu, C. Zhang, Z. Zhao, Y. H. Chin, H. Fukuma, S. Hiramatsu, M. Izawa, T. Kasuga, E. Kikutani, Y. Kobayashi, S. Kurokawa, K. Ohmi, Y. Sato, Y. Suetsugu, M. Tobiyama, K. Tsukamoto, K. Yokoya, X. L. Zhang   +25 more
doaj   +1 more source

Linear and nonlinear evolution of the vertical shear instability in accretion discs

, 2012
(Abridged) We analyse the stability and evolution of power-law accretion disc models. These have midplane densities that follow radial power-laws, and have either temperature or entropy distributions that are power-law functions of cylindrical radius. We
Gressel, Oliver, Nelson, Richard P., Umurhan, Orkan M.   +2 more
core   +1 more source