Results 41 to 50 of about 3,448,461 (253)

Structural covariance in the hard sphere fluid [PDF]

The Journal of Chemical Physics, 2018
We study the joint variability of structural information in a hard sphere fluid biased to avoid crystallisation and form five-fold symmetric geometric motifs. We show that the structural covariance matrix approach, originally proposed for on-lattice liquids [P. Ronceray and P. Harrowell, J. Stat. Mech.: Theory Exp. 2016(8), 084002], can be meaningfully
Benjamin M. G. D. Carter, Francesco Turci, Pierre Ronceray, C. Patrick Royall   +3 more
openaire   +5 more sources

Association Between Hippocampus, Thalamus, and Caudate in Mild Cognitive Impairment APOEε4 Carriers: A Structural Covariance MRI Study

Frontiers in Neurology, 2019
Objective: Although, the apolipoprotein E (APOE) genotype is widely recognized as one of the most important risk factors for Alzheimer's disease (AD) development, the neural mechanisms by which the ε4 allele promotes the AD occurring remain under debate.
Fabiana Novellino, María Eugenia López, María Eugenia López, María Eugenia López, Maria Grazia Vaccaro, Yus Miguel, María Luisa Delgado, Fernando Maestu, Fernando Maestu, Fernando Maestu   +9 more
doaj   +1 more source

On the structure of covariant phase observables [PDF]

Journal of Mathematical Physics, 2002
We study the mathematical structure of covariant phase observables. Such observables can alternatively be expressed as phase matrices, as sequences of unit vectors, as sequences of phase states, or as equivalence classes of covariant trace-preserving operations.
openaire   +3 more sources

Network-level structural alterations distinguish persistent from remitted post-traumatic stress disorder: a morphometric covariance approach

European Journal of Psychotraumatology
Background: Post-traumatic stress disorder (PTSD) exhibits heterogeneous clinical trajectories: while many affected individuals achieve remission, a substantial proportion develop a chronic, persistent form.
Suji Lee, Hyeonji Lee, Yoonji Joo, Chaewon Suh, Youngeun Shim, Yunjung Jin, Harin Song, Sujung Yoon, In Kyoon Lyoo   +8 more
doaj   +1 more source

Structural brain alterations in patients with anxious depression: evidence from the REST-meta-MDD project

Frontiers in Psychiatry
BackgroundAnxious depression (AD) is a clinically significant subtype of major depressive disorder (MDD) characterized by prominent anxiety symptoms. Emerging neuroimaging evidence shows that AD patients have significantly altered brain structure.
Songhao Hu, Songhao Hu, Li Zhu, Li Zhu, Xiang-Yang Zhang   +4 more
doaj   +1 more source

Structural Covariance of the Ipsilesional Primary Motor Cortex in Subcortical Stroke Patients with Motor Deficits

Neural Plasticity, 2022
The analysis of structural covariance has emerged as a powerful tool to explore the morphometric correlations among broadly distributed brain regions. However, little is known about the interactions between the damaged primary motor cortex (M1) and other
Xinyuan Chen, Mengcheng Li, Naping Chen, Huimin Lai, Ziqiang Huang, Yuqing Tu, Qunlin Chen, Jianping Hu   +7 more
doaj   +1 more source

Mapping white matter structural covariance connectivity for single subject using wavelet transform with T1-weighted anatomical brain MRI

Frontiers in Neuroscience, 2022
IntroductionCurrent studies of structural covariance networks were focused on the gray matter in the human brain. The structural covariance connectivity in the white matter remains largely unexplored.
Xun-Heng Wang, Bohan Zhao, Lihua Li
doaj   +1 more source

Moderate structural realism about space-time [PDF]

, 2006
This paper sets out a moderate version of metaphysical structural realism that stands in contrast to both the epistemic structural realism of Worrall and the – radical – ontic structural realism of French and Ladyman.
Lam, Vincent, Michael Esfeld, Vincent Lam, Esfeld, Michael   +3 more
core   +1 more source

Memory and Resting‐State Connectivity in Acute Transient Global Amnesia: A Case–Control fMRI Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Transient global amnesia (TGA) is a striking model of isolated amnesia. While hippocampal lesions are well described, the network‐level mechanisms and the precise neuropsychological profile remain debated. Our objective was thus to characterize functional and neuropsychological correlates of acute TGA and their ...
Elias El Otmani, Emmanuel Barbeau, Béatrice Lemesle, Emilie Milongo‐Rigal, Sophie Fernandez, Sandrine Charpentier, Jean‐François Albucher, Nicolas Raposo, Fabrice Bonneville, Patrice Péran, Jérémie Pariente   +10 more
wiley   +1 more source

Thalamo‐Lesional Connectivity Signatures of Bilateral Tonic–Clonic Seizures in Focal Cortical Dysplasia‐Related Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Focal cortical dysplasia (FCD) is the most common etiology of drug‐resistant epilepsy in children. Focal to bilateral tonic–clonic seizures (FBTCS) mark a high risk of drug‐resistant epilepsy and involve thalamocortical circuitry in their generation and propagation.
Hua Xie, Xiaotong Li, Venkata Sita Priyanka Illapani, Leigh N. Sepeta, Jason Schroeder, Chima O. Oluigbo, Madison M. Berl, William D. Gaillard, Nathan T. Cohen   +8 more
wiley   +1 more source