Results 121 to 130 of about 329,714 (296)

Eigenpairs of adjacency matrices of balanced signed graphs

open access: yesSpecial Matrices
In this article, we study eigenvalues λ\lambda and their associated eigenvectors xx of the adjacency matrices AA of balanced signed graphs. Balanced signed graphs were first introduced and studied by Harary to handle a problem in social psychology ...
Chen Mei-Qin
doaj   +1 more source

The Associations Between Chronic Active Lesions and White Matter Disease: A 7 Tesla Imaging Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background The relationship between paramagnetic rim lesions (PRLs) and surrounding normally appearing white matter (NAWM) disease, potentially contributory to the associations seen between PRLs and clinical impairment, is underexplored. Objectives To assess whether PRLs correlate with a greater degree of NAWM injury in early MS.
Ellie McCluey   +17 more
wiley   +1 more source

Translating a Preclinically Tested 15 Hz rTMS Protocol to Humans With Chronic Spinal Cord Injury: A Safety and Feasibility Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Repetitive transcranial magnetic stimulation (rTMS) is a non‐invasive brain stimulation strategy with a demonstrated potential to reinforce the residual pathways after a spinal cord injury (SCI). A preclinically tested high‐frequency (15 Hz) rTMS (15 Hz rTMS) protocol was shown to induce corticospinal tract axon regeneration growth ...
Nabila Brihmat   +8 more
wiley   +1 more source

具有较小秩的带号图的刻画(A characterization of signed graphs with small rank)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2013
带号图是每条边带有符号(正或负)的简单图.探讨了带号图的秩,刻画了秩为2与3的带号图,以及秩为4的带号二部图.
SULi(苏莉)   +2 more
doaj   +1 more source

Functional Connectivity Associations With Markers of Disease Progression in GRN Pathogenic Variant Carriers

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Autosomal dominant progranulin (GRN) pathogenic variants are a genetic cause of frontotemporal lobar degeneration. Though clinical trials for GRN‐related therapies are underway, there is an unmet need for biomarkers that can predict symptom onset and track disease progression.
Taru M. Flagan   +46 more
wiley   +1 more source

Chromatic invariants of signed graphs

open access: yesDiscrete Mathematics, 1982
AbstractWe continue the study initiated in “Signed graph coloring” of the chromatic and Whitney polynomials of signed graphs. In this article we prove and apply to examples three types of general theorem which have no analogs for ordinary graph coloring.
openaire   +2 more sources

Genetic Modifiers of Parkinson's Disease: A Case–Control Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the associations of LRRK2 p.G2019S, GBA1 p.N409S, polygenic risk scores (PRS), and APOE E4 on PD penetrance, risk, and symptoms. Methods We conducted a US‐based observational case–control study using data from the 23andMe Inc. and Fox Insight Genetic Substudy (FIGS) databases.
Matthew J. Kmiecik   +15 more
wiley   +1 more source

Signing RDF Graphs [PDF]

open access: bronze, 2003
Jeremy J. Carroll
openalex   +1 more source

Exploring Nasal Structural‐Microbial Interactions in Multiple Sclerosis‐Associated Olfactory Impairment

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Olfactory dysfunction is frequently observed in patients with multiple sclerosis (MS); however, its underlying mechanisms remain poorly understood. To date, no studies have directly examined the nasal mucosal microbiota in MS. This study aimed to explore potential relationships among olfactory function, nasal microbiota composition,
Zidan Gao   +5 more
wiley   +1 more source

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