Topological Analysis of a Complex Trust Network

2013 ◽  
Author(s):  
Xiangling Kuang ◽  
Qingang Zuo ◽  
Guangqiu Huang
Keyword(s):  
Topological Analysis ◽  
Trust Network

DIMENSIONING OF THE FRONTAL SUSPENSION SYSTEM OF THE DOUBLE-A TYPE THROUGH TOPOLOGICAL ANALYSIS.

2017 ◽  
Author(s):  
Tiago Ferreira ◽  
Thiago Moreira ◽  
Gustavo Melchiades ◽  
Lucas Ferreira ◽  
Diógenes Sena de França e Silva
Keyword(s):  
Topological Analysis ◽  
Suspension System

Topological analysis of hydrogen bonding in protein structure

1990 ◽  
Vol 188 (2) ◽  
pp. 361-365 ◽  
Author(s):  
Boryeu MAO ◽  
Kuo-Chen CHOU ◽  
Gerald M. MAGGIORA
Keyword(s):  
Hydrogen Bonding ◽  
Protein Structure ◽  
Topological Analysis

scholarly journals Exploring the predictive value of lesion topology on motor function outcomes in a porcine ischemic stroke model

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kelly M. Scheulin ◽  
Brian J. Jurgielewicz ◽  
Samantha E. Spellicy ◽  
Elizabeth S. Waters ◽  
Emily W. Baker ◽  
...  
Keyword(s):  
Motor Function ◽  
Pearson Correlation ◽  
Topological Analysis ◽  
Brain Atlas ◽  
Analysis Approach ◽  
Lesion Volume ◽  
Stroke Outcomes ◽  
Correlation Analyses ◽  
Diagnostic Potential ◽  
Functional Gait

AbstractHarnessing the maximum diagnostic potential of magnetic resonance imaging (MRI) by including stroke lesion location in relation to specific structures that are associated with particular functions will likely increase the potential to predict functional deficit type, severity, and recovery in stroke patients. This exploratory study aims to identify key structures lesioned by a middle cerebral artery occlusion (MCAO) that impact stroke recovery and to strengthen the predictive capacity of neuroimaging techniques that characterize stroke outcomes in a translational porcine model. Clinically relevant MRI measures showed significant lesion volumes, midline shifts, and decreased white matter integrity post-MCAO. Using a pig brain atlas, damaged brain structures included the insular cortex, somatosensory cortices, temporal gyri, claustrum, and visual cortices, among others. MCAO resulted in severely impaired spatiotemporal gait parameters, decreased voluntary movement in open field testing, and higher modified Rankin Scale scores at acute timepoints. Pearson correlation analyses at acute timepoints between standard MRI metrics (e.g., lesion volume) and functional outcomes displayed moderate R values to functional gait outcomes. Moreover, Pearson correlation analyses showed higher R values between functional gait deficits and increased lesioning of structures associated with motor function, such as the putamen, globus pallidus, and primary somatosensory cortex. This correlation analysis approach helped identify neuroanatomical structures predictive of stroke outcomes and may lead to the translation of this topological analysis approach from preclinical stroke assessment to a clinical biomarker.

scholarly journals Data Parallel Hypersweeps for in Situ Topological Analysis

2020 ◽  
Author(s):  
Petar Hristov ◽  
Gunther H. Weber ◽  
Hamish A. Carr ◽  
Oliver Rubel ◽  
James P. Ahrens
Keyword(s):  
Topological Analysis ◽  
Data Parallel

The Nature of Chemical Bonds in the Tetragonal Polymorph of InTe. First‐Principles Based Topological Analysis

2021 ◽  
Author(s):  
Aleksey V. Kovalenko ◽  
Andrei V. Bandura ◽  
Dmitry D. Kuruch ◽  
Sergey I. Lukyanov ◽  
Robert A. Evarestov
Keyword(s):  
First Principles ◽  
Topological Analysis ◽  
Chemical Bonds

Revisiting the charge density analysis of 2,5-dichloro-1,4-benzoquinone at 20 K

2017 ◽  
Vol 73 (4) ◽  
pp. 654-659 ◽  
Author(s):  
Zhijie Chua ◽  
Bartosz Zarychta ◽  
Christopher G. Gianopoulos ◽  
Vladimir V. Zhurov ◽  
A. Alan Pinkerton
Keyword(s):  
Charge Density ◽  
Electron Density ◽  
Topological Analysis ◽  
Diffraction Measurement ◽  
X Ray Diffraction ◽  
Total Electron Density ◽  
Total Electron ◽  
Structure Factors ◽  
Density Analysis ◽  
Experimental Charge Density

A high-resolution X-ray diffraction measurement of 2,5-dichloro-1,4-benzoquinone (DCBQ) at 20 K was carried out. The experimental charge density was modeled using the Hansen–Coppens multipolar expansion and the topology of the electron density was analyzed in terms of the quantum theory of atoms in molecules (QTAIM). Two different multipole models, predominantly differentiated by the treatment of the chlorine atom, were obtained. The experimental results have been compared to theoretical results in the form of a multipolar refinement against theoretical structure factors and through direct topological analysis of the electron density obtained from the optimized periodic wavefunction. The similarity of the properties of the total electron density in all cases demonstrates the robustness of the Hansen–Coppens formalism. All intra- and intermolecular interactions have been characterized.

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