Results 41 to 50 of about 474 (166)

A recursive description of the maximal pro-2 galois group via witt rings

Mathematische Zeitschrift, 1989
Let us denote by \(F\) a field with \(\text{char}(F) \neq 2\) and \(F^x/F^{x 2}\) finite. The aim of this paper is to determine all profinite 2-groups which occur as the Galois group \(G_F\) of the maximal 2-extension of a field \(F\), via the study of the Witt ring \(W(F)\) of quadratic forms over \(F\). By definition, \(W(F)\) has ''elementary type''
Ware, Roger, Jacob, Bill
openaire   +2 more sources

Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species

Fisheries Management and Ecology, EarlyView.
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos, Eduardo R. Secchi, Joanna Turner, Luis Gustavo Cardoso   +3 more
wiley   +1 more source

New Accelerants of Inequality Regimes: AI‐Hiring Tools and Algorithmic Bias

Gender, Work &Organization, EarlyView.
ABSTRACT AI‐hiring technology is becoming increasingly widely adopted, raising important questions about what effect such technology may have on organizational inequality regimes. Although there is a large and growing body of literature surrounding the effects of AI hiring, its impacts, and bias, markedly less is known about who develops, sells, and ...
Emily Yarrow
wiley   +1 more source

Predicting psychopathology symptom trajectories using machine learning: a 33‐year prospective study

Journal of Child Psychology and Psychiatry, EarlyView.
Background While previous literature has established a link between psychopathology symptom trajectories and psychosocial risk, most studies have not extended into adulthood or incorporated comprehensive risk measures. We aimed to identify symptom trajectories for externalizing and internalizing symptoms over a 25‐year span and predict them using ...
Seda Sacu, Fabian Streit, Stephanie H. Witt, Tobias Banaschewski, Nathalie E. Holz, Katharina Schultebraucks   +5 more
wiley   +1 more source

The Burnside ring of the infinite cyclic group and its relations to the necklace algebra, λ-rings, and the universal ring of Witt vectors

Advances in Mathematics, 1989
Let \(a(t)=1+\sum_{n=1}a_ nt^ n \in {\mathbb{Z}}[[t]]\) be a formal power series with integral coefficients. The authors establish isomorphisms between: the Burnside ring \({\hat \Omega}(C)\) of the infinite cyclic group C, the Grothendieck ring \(\Lambda(Z)\) [\textit{A. Grothendieck}, Bull. Soc. Math.
Dress, Andreas, Siebeneicher, Christian
openaire   +3 more sources

Randomised controlled trial of a web‐based mental health, self‐harm and suicide gatekeeper resource for parents and caregivers

Journal of Child Psychology and Psychiatry, EarlyView.
Background Parents and caregivers play key roles in recognising early signs of mental distress and facilitating access to support, yet often lack the confidence and knowledge to respond effectively. Gatekeeper training programs can improve skills, but few are specifically designed for parents.
Alison L. Calear, Sonia M. McCallum, Dominique Kazan, Michelle Torok, Aliza Werner‐Seidler, Bridianne O'Dea, Alyssa Morse, Louise M. Farrer, Fiona Shand, Philip J. Batterham   +9 more
wiley   +1 more source

When are Witt rings group rings [PDF]

Pacific Journal of Mathematics, 1973
openaire   +5 more sources

Keep on Keepin’ on Down Under: Administrative Heritage and the Strategic Realignment of Multinational Enterprises in Australia During Deglobalization, 1914–79

Journal of Management Studies, EarlyView.
Abstract We analyse the behaviour of multinational enterprises (MNEs) within a host nation – Australia – during deglobalization (1914–79). Deglobalization is often portrayed as a drastic event to which MNEs respond swiftly, probably through withdrawal from host countries.
Pierre Van der Eng, André Sammartino, Simon Ville, David Merrett, Monica Keneley   +4 more
wiley   +1 more source

Trade Wars, International Supply Chains, and Business Associations: Historical Evidence from Norway and Portugal

Journal of Management Studies, EarlyView.
Abstract This article examines the 1921–1923 trade war between Norway and Portugal as a historical case for exploring business responses to deglobalization and trade disruption. Focusing on the international supply chains (ISCs) of port wine and salted and dried cod, it investigates how business actors contributed to the recoupling of ISCs after a ...
Rolv Petter Amdam, Teresa da Silva Lopes, Trudi Henrydotter Eikrem, Maria Eugenia Mata   +3 more
wiley   +1 more source

On the Witt group of the punctured spectrum of a regular semilocal ring

Journal of the London Mathematical Society
AbstractLet  be a regular semilocal ring of dimension  which contains , the number of maximal ideals of  which are assumed to be all of the same height, and  the punctured spectrum of , that is, without the maximal ideals. We show that the Witt ring  of  has  non‐trivial generators as ‐algebra, which satisfy for all .
Gille, Stefan, Panin, Ivan
openaire   +2 more sources