Results 101 to 110 of about 1,841,497 (380)

Alterations of brain network topology and structural-functional connectivity coupling in noise-induced hearing loss based on macroscopic scale

open access: yesFrontiers in Neuroscience
ObjectiveTo investigate the changes in the global attributes of structural connectivity (SC) and functional connectivity (FC) graph theory, as well as the coupling topological structure of the whole brain SC-FC in patients with noise-induced hearing loss
Aijie Wang   +6 more
doaj   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

Graph Homomorphism Revisited for Graph Matching [PDF]

open access: yes, 2010
In a variety of emerging applications one needs to decide whether a graph G matches another Gp, i.e., whether G has a topological structure similar to that of Gp. The traditional notions of graph homomorphism and isomorphism often fall short of capturing
Li, Jianzhong   +4 more
core  

Astrocyte heterogeneity and hierarchical information flow: reframing glial computation

open access: yesFrontiers in Cellular Neuroscience
Astrocytes are active elements in the brain; they exhibit complex, highly branched processes that contact neurons and blood vessels to regulate neuronal activity and vasoactive responses.
Oswaldo Pérez   +2 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Analysis of brain connectivity during nitrous oxide sedation using graph theory

open access: yesScientific Reports, 2020
Nitrous oxide, the least potent inhalation anesthetic, is widely used for conscious sedation. Recently, it has been reported that the occurrence of anesthetic-induced loss of consciousness decreases the interconnection between brain regions, resulting in
Ji-Min Lee   +6 more
semanticscholar   +1 more source

A cluster analysis based on graph theory

open access: yesVegetatio, 1974
A clustering method is presented that groups sample plots (stands or other units) together, based on their proximity in a multidimensional test space in which the axes represent the attributes (species) of the individuals (sample plots, etc.). The resulting dendrogram is used to make subjective judgements on the type and distinctiveness of the ...
Van Groenewoud, H., Ihm, P.
openaire   +2 more sources

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

Small‐world network and neuroscience

open access: yesBrain-X
Small‐world networks are of great significance in the field of neuroscience. As the universal nature of the human brain network, their heterogeneous pattern of change in patients with different diseases may satisfy the need for auxiliary objective ...
Yan‐Kun Han   +12 more
doaj   +1 more source

A Single Session of rTMS Enhances Small-Worldness in Writer’s Cramp: Evidence from Simultaneous EEG-fMRI Multi-Modal Brain Graph

open access: yesFrontiers in Human Neuroscience, 2017
Background and Purpose: Repetitive transcranial magnetic stimulation (rTMS) induces widespread changes in brain connectivity. As the network topology differences induced by a single session of rTMS are less known we undertook this study to ascertain ...
Rose D. Bharath   +12 more
doaj   +1 more source

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