Results 31 to 40 of about 73,169 (194)

Constructing Witt–Burnside rings

Advances in Mathematics, 2006
The main theorem of this paper describes an isomorphism between the Witt-Burnside ring over a commutative monoid ring \({\mathbb Z}[M]\) and the Grothendieck ring of a category whose objects are almost finite \(G\)-sets \(X\) for a profinite group \(G\), equipped with a map \(X\rightarrow M\), that is constant on \(G\)-orbits.
openaire   +1 more source

Connecting the dots: A narrative review of the relationship between heart failure and cognitive impairment

ESC Heart Failure, Volume 12, Issue 2, Page 1119-1131, April 2025.
Abstract Large clinical data underscore that heart failure is independently associated to an increased risk of negative cognitive outcome and dementia. Emerging evidence suggests that cerebral hypoperfusion, stemming from reduced cardiac output and vascular pathology, may contribute to the largely overlapping vascular dementia and Alzheimer's disease ...
Mauro Massussi, Maria Giulia Bellicini, Marianna Adamo, Andrea Pilotto, Marco Metra, Alessandro Padovani, Riccardo Proietti   +6 more
wiley   +1 more source

Semiorderings and Witt rings [PDF]

Bulletin of the Australian Mathematical Society, 2003
For a pythagorean fieldFwith semiorderingQand associated preorderingT, it is shown that the Witt ringWT(F) is isomorphic to the Witt ringW(K) whreKis a closure ofFwith respect toQ. For an arbitrary preorderingT, it is shown how the covering number ofTrelates to the construction ofWT(F).
Craven, Thomas C., Smith, Tara L.
openaire   +1 more source

Functionality of symptoms and interpersonal communication in home video recordings of functional/dissociative versus epileptic seizures

Epilepsia, EarlyView.
Abstract Objective Conceptualizing functional/dissociative seizures (FDS) as resulting from dissociation, or conversion, we hypothesized that, compared to epileptic seizures (ES), FDS should carry more symbolic or communicative content and that this would allow observers to distinguish FDS from ES.
Nayrin Dissouky, Klara Kochs, Robert Daniel Nass, Tobias Baumgartner, Attila Rácz, Rainer Surges, Markus Reuber, Juri‐Alexander Witt, Christoph Helmstaedter   +8 more
wiley   +1 more source

The Many Facets of Workplace Moral Courage: Development and Validation of a Multidimensional Scale

Human Resource Development Quarterly, EarlyView.
ABSTRACT In the battle against unethical behavior in organizations, fostering employees' moral courage proves vital beyond conventional regulation and compliance efforts. To propel this frontier and empower individuals to uphold moral values, a robust measure of workplace moral courage becomes imperative.
Nicole Witt, Carmen Tanner
wiley   +1 more source

Half Factorial Witt Rings

Journal of Algebra, 1993
Let \(R\) be the Witt ring of a formally real field \(F\), \((R_{\text{red}},G_{\text{red}})\) its reduced Witt ring and \(C(R)\) the ideal class group of \(R\) [defined in the author's paper, J. Algebra 124, 506-520 (1989; Zbl 0682.10016)]. \(R\) is called a half factorial ring if for every odd dimensional non-unit in \(R\) any two factorizations into
openaire   +2 more sources

School experiences and self‐harm in the OxWell study

JCPP Advances, EarlyView.
Understanding which school experiences are associated with greater self‐harm. More support is needed for girls and gender diverse populations. Many school experiences are things we can address and change, such as bullying. Abstract Background Schools are key for identifying challenges faced by young people who self‐harm (SH).
Rasanat Fatima Nawaz, Tamsin Jane Ford, Mina Fazel, Galit Geulayov, The OxWell Study Team, Simon R. White   +5 more
wiley   +1 more source

A McKay Correspondence in Positive Characteristic

Forum of Mathematics, Sigma
We establish a McKay correspondence for finite and linearly reductive subgroup schemes of ${\mathbf {SL}}_2$ in positive characteristic.
Christian Liedtke
doaj   +1 more source

Sequelae of child maltreatment: Umbrella synthesis of 148 meta‐analyses on the mental health correlates

JCPP Advances, EarlyView.
Our umbrella synthesis found strong, often equivalent, associations between child maltreatment and all examined mental health difficulties. Different types of maltreatment appear to have comparably negative effects on mental health. If replicated, these findings may cause us to reconsider conventional wisdom that suggests some forms of CM are less ...
Barry Coughlan, Robbie Duschinsky, Marian J. Bakermans‐Kranenburg, Lianne Bakkum, Guy C. M. Skinner, Alfred Markham, Helen Beckwith, Marinus H. van Ijzendoorn   +7 more
wiley   +1 more source

Marshall’s Quotient and the Arason–Pfister Hauptsatz for Reduced Special Groups

Mathematics
We provide a new proof of the Arason–Pfister Hauptsatz (APH) in the setting of reduced special groups, as developed by Dickmann and Miraglia. Our approach avoids the use of Boolean invariants and instead relies on a construction inspired by Marshall’s ...
Kaique Matias de Andrade Roberto, Hugo Luiz Mariano   +1 more
doaj   +1 more source