Results 61 to 70 of about 3,828 (293)

On hereditary irreducibility of some monomial matrices over local rings

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
We consider monomial matrices over a commutative local principal ideal ring $R$ of type $M(t,k,n)=\Phi\left(\begin{smallmatrix}I_k&0\\0\,\,&tI_{n-k}\end{smallmatrix}\right ...
A.A. Tylyshchak, M. Demko
doaj   +1 more source

Jacobson Radical [PDF]

open access: yes, 2017
Cilj ovog završnog rada bio je definirati Jacobsonov radikal, kao jedan od primjera ideala te proučiti njegova svojstva i primjene. U prvom dijelu rada definirani su neki osnovni pojmovi, te svojstva radikala i Wedderburnov pristup. Nadalje, uvedeno je
Bulajić, Ivana
core  

Associations Between Comorbidities, Developmental Status, and Disease Severity in Children With Autism Spectrum Disorder: A Multicenter Cross‐Sectional Study in China

open access: yesAutism Research, EarlyView.
ABSTRACT Children with autism spectrum disorder (ASD) frequently present with co‐occurring conditions that can influence autism symptom severity and complicate clinical management. However, studies with clinician‐confirmed diagnoses in non‐Western populations remain limited.
Dizhou Pang   +25 more
wiley   +1 more source

Humans are not unique: difficult birth is common in placental mammals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley   +1 more source

Takeover Vulnerability and the Discipline of ESG Overinvestment

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT While takeovers serve a disciplinary role by replacing inefficient managers, the threat of takeovers may compel firms to divert attention from Environmental, Social and Governance (ESG) efforts as a strategic response to external pressure, especially when such firms are already overinvesting in ESG.
Abongeh Tunyi   +2 more
wiley   +1 more source

Innovating for Net‐Zero: Collaborative and Digital Decarbonisation Strategies in Sunset Industries' Global Value Chains

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Global net‐zero ambitions require transformative strategies to decarbonise carbon‐intensive global value chains (GVCs). This study examines how multinational enterprises (MNEs) in sunset industries integrate carbon capture technologies (CCT) with operational and supply chain dynamics (OSCD) to advance decarbonisation.
Muhammad Mustafa Kamal   +6 more
wiley   +1 more source

Intuitionistic fuzzy Nakayama's Lemma [PDF]

open access: yesNotes on IFS
Drawing upon Atanassov's pioneering work on intuitionistic fuzzy sets [1], this paper presents the concept of intuitionistic fuzzy Nakayama's Lemma, offering a natural extension to Rajesh Kumar et al.'s fuzzy Nakayama's Lemma [8]. Additionally, we define
S. Achik   +3 more
doaj   +1 more source

The Jacobson radical of differential polynomial rings

open access: yes, 2015
O objetivo desta dissertação é estudar o radical de Jacobson de anéis de polinômios diferenciais. Mostramos um resultado de M. Ferrero, K. Kishimoro, K.
Santos Filho, Gilson Reis dos
core   +1 more source

ESG Controversies in Global Firms: A Black Mark?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Despite increasing attention paid by companies to sustainability, there is still evidence of environmental, social and governance (commonly referred to as ESG) scandals. As research on this topic is scant, this paper aims to analyse the impact of ESG controversies on firms' sustainability practices, that is, ESG policies, as well as ...
Beatrice Bais, Guido Orzes, Marco Sartor
wiley   +1 more source

On Generalized Periodic-Like Rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Let R be a ring with center Z, Jacobson radical J, and set N of all nilpotent elements. Call R generalized periodic-like if for all x∈R∖(N∪J∪Z) there exist positive integers m, n of opposite parity for which xm−xn∈N∩Z.
Howard E. Bell, Adil Yaqub
doaj   +1 more source

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