Results 81 to 90 of about 32,481 (184)
Diastereoselective Alkylations of Chiral Tetrazolo[1,5-a]azepines via Heterobenzylic Anion Intermediates. [PDF]
Org Lett, 2022 Witt CH, Woerpel KA.
europepmc +1 more source
European 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
Journal 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.
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Perceptions of Game‐Based Assessments: The Role of Test Takers' Occupational Background
International 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
Journal 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
Matemática 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 \(F\).
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Journal 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
Origin of High Diastereoselectivity in Reactions of Seven-Membered-Ring Enolates. [PDF]
Angew Chem Int Ed Engl, 2022 Lavinda O, Witt CH, Woerpel KA.
europepmc +1 more source
Witt rings of global function fields
Functiones et Approximatio Commentarii Mathematici, 2000 \textit{F. DeMeyer}, \textit{D. Harrison} and \textit{R. Miranda} [Mem. Am. Math. Soc. 394, 1--42 (1989; Zbl 0668.10028)] described the Witt ring \(W({\mathbb Q})\) of the rational number field \(\mathbb Q\) by defining the ring structure on an explicitly constructed set \(V(\mathbb Q)\) and showing that the rings \(W({\mathbb Q})\) and \(V(\mathbb Q)\)
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