Results 91 to 100 of about 73,169 (194)

Chow–Witt rings of Grassmannians

open access: yesAlgebraic & Geometric Topology
Significant revision, streamlined proofs ...
openaire   +3 more sources

Facilitative interspecific interactions in marine vertebrates across scales: from individuals to ecosystems

open access: yesBiological Reviews, Volume 101, Issue 1, Page 519-538, February 2026.
ABSTRACT Facilitative interspecific interactions (FIIs) confer benefits to at least one participant without detriment to others. Although often less emphasised than antagonistic interactions in ecological studies, this review highlights the significant ecological role of FIIs across biological scales – from individual behaviours to population ...
Eduardo Döbber Vontobel   +5 more
wiley   +1 more source

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

How Much Difference Does Depression Make to the Outcome of Neuropsychological Assessments of Patients With Epilepsy?

open access: yesEuropean Journal of Neurology, Volume 33, Issue 2, February 2026.
ABSTRACT Background Cognitive impairment and depression are common comorbidities in people with epilepsy (PWE). This study investigated the extent to which the severity of depression affects specific cognitive domains and quality of life (QOL) in PWE.
Christoph Helmstaedter   +4 more
wiley   +1 more source

Local-global principles for witt rings

open access: yesJournal of Pure and Applied Algebra, 1993
For a collection \({\mathbf K}\) of algebraic extensions of a field \(K\) there is the natural homomorphism of the Witt ring \(W(K)\) into the sheaf product of the Witt rings of fields in \({\mathbf K}\). Conditions are studied under which the homomorphism turns out to be surjective or bijective.
openaire   +2 more sources

Perceptions of Game‐Based Assessments: The Role of Test Takers' Occupational Background

open access: yesInternational Journal of Selection and Assessment, Volume 34, Issue 1, February 2026.
ABSTRACT Game‐based assessments (GBAs) have become increasingly popular in personnel selection. However, research on perceptions of GBAs has yielded mixed results, highlighting the need to explore variables that may shape perceptions of GBAs. Therefore, we examined whether test takers' occupational background and other person‐related characteristics (i.
Marie L. Ohlms   +2 more
wiley   +1 more source

Astrocyte Regulation of Spinal Circuit Function

open access: yesJournal of Neurochemistry, Volume 170, Issue 2, February 2026.
Spinal cord astrocytes exist as an additional component of the computational framework that governs both sensory perceptions and motor outputs (left). By integrating local synaptic activity together with signals that reflect whole‐body state (e.g., neuromodulators, immune signals, and vascular signals) into defined input states (Sn), astrocytes adapt ...
Mary Kaye Duff   +2 more
wiley   +1 more source

Witt-Grothendieck rings and π-Henselianity

open access: yesMatemática Contemporânea, 1999
For a field \(F\) of characteristic not 2 let \(\widehat{\text{W}}(\Sigma \dot{F}^2)\) denote the subring of the Witt-Grothendieck ring \(\widehat{\text{W}}(F)\) of \(F\) generated by sums of squares. A valuation ring \(A\) of \(F\) is called \(\pi\)-Henselian if \(A\) extends uniquely to the Pythagorean closure of \(F\).
openaire   +2 more sources

Visual Training Induced Temporo‐Occipital Fast Sleep Spindle Clustering in Humans Revealed by Full‐Night HD‐EEG Recordings

open access: yesJournal of Sleep Research, Volume 35, Issue 1, February 2026.
ABSTRACT This study investigates the impact of extensive visual procedural training on the temporal organisation of sleep spindles in healthy young adults. We selected 39 participants aged 16–20 and employed high‐density electroencephalography to assess spindle characteristics during two full nights of sleep, with daytime practising in a contour ...
Patrícia Gerván   +4 more
wiley   +1 more source

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