Results 61 to 70 of about 1,022,933 (334)

Groups and Algebras of Binary Relations

The Bulletin of Symbolic Logic, 2002
AbstractIn 1941, Tarski published an abstract, finitely axiomatized version of the theory of binary relations, called the theory of relation algebras. He asked whether every model of his abstract theory could be represented as a concrete algebra of binary relations.
Givant, Steven, Andreka, Hajnal
openaire   +2 more sources

Divisibility of binary relations [PDF]

Bulletin of the Australian Mathematical Society, 1971
In his paper in Mat. Sb. (N.S.) 61 (103) (1963), Zareckiĭ associated with any binary relation α an ordered pair, (Lα Mα), say, of lattices and showed that α is a left [right] divisor of β if and only if We provide an alternative proof of this result by embedding the category of relations in the category of sets.
Fitz-Gerald, D. G., Preston, G. B.
openaire   +1 more source

Pre‐Diagnostic Features of Multiple Sclerosis in a Diverse UK Cohort: A Nested Case–Control Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Many patients with Multiple Sclerosis (MS) experience nonspecific symptoms prior to diagnosis. This period—the 'MS prodrome'—has been described in socio‐economically homogeneous cohorts to date. It remains unclear to what extent events prior to an MS diagnosis differ according to social determinants of health. Methods We conducted a
Pooja Tank, Benjamin M. Jacobs, Jonathan Bestwick, Ruth Dobson   +3 more
wiley   +1 more source

Relation Extraction in Biomedical Texts Based on Multi-Head Attention Model With Syntactic Dependency Feature: Modeling Study

JMIR Medical Informatics, 2022
BackgroundWith the rapid expansion of biomedical literature, biomedical information extraction has attracted increasing attention from researchers.
Yongbin Li, Linhu Hui, Liping Zou, Huyang Li, Luo Xu, Xiaohua Wang, Stephanie Chua   +6 more
doaj   +1 more source

Characteristics of Cerebral Palsy in the Midwestern US

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cerebral palsy (CP) is the most common lifelong motor disability worldwide. Yet, data is limited on how CP manifests in the US. Our objective was to characterize and determine factors affecting functional outcomes in a large population of young people with CP in the Midwestern US.
Susie Kim, Kelsey Steffen, Lauren Gottschalk‐Henneberry, Jennifer Miros, Amy Robichaux‐Viehoever, Karen Taca, Bhooma R. Aravamuthan   +6 more
wiley   +1 more source

The Stokes-Einstein Relation in Supercooled Aqueous Solutions of Glycerol

, 2006
The diffusion of glycerol molecules decreases with decreasing temperature as its viscosity increases in a manner simply described by the Stokes-Einstein(SE) relation. Approaching the glass transition, this relation breaks down as it does with a number of
A. Einstein, Bo Chen, C. Gao, D. J. Tomlinson, E. E. Sigmund, E. Jenckel, G. Tamman, G. S. Fulcher, H. Vogel, W. P. Halperin   +9 more
core   +1 more source

Tracking Motor Progression and Device‐Aided Therapy Eligibility in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterise the progression of motor symptoms and identify eligibility for device‐aided therapies in Parkinson's disease, using both the 5‐2‐1 criteria and a refined clinical definition, while examining differences across genetic subgroups.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Mark Baker, Nicola Pavese   +7 more
wiley   +1 more source

Suzuki-type fixed point theorems in relational metric spaces with applications [PDF]

Mathematica Moravica
In this paper, we establish a relation-theoretic version of the results presented by Kim et al. (Journal of Nonlinear and Convex Analysis, 16 (9) (2015), 1779-1786).
Khantwal Deepak, Pant Rajendra
doaj   +1 more source

Lesion Location and Functional Connections Reveal Cognitive Impairment Networks in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive impairment, fatigue, and depression are common in multiple sclerosis (MS), potentially due to disruption of regional functional connectivity caused by white matter (WM) lesions. We explored whether WM lesions functionally connected to specific brain regions contribute to these MS‐related manifestations.
Alessandro Franceschini, Paolo Preziosa, Paola Valsasina, Damiano Mistri, Monica Margoni, Federica Esposito, Massimo Filippi, Maria A. Rocca   +7 more
wiley   +1 more source

Relational Almost (ϕ,ψ)-Contractions and Applications to Nonlinear Fredholm Integral Equations

Axioms
This paper deals with the fixed-point findings under relational strict almost (ϕ,ψ)-contraction. Our findings complement and strengthen prevailing results.
Fahad M. Alamrani, Ebrahem A. Algehyne, Esmail Alshaban, Adel Alatawi, Hamid I. A. Mohammed, Faizan Ahmad Khan   +5 more
doaj   +1 more source