Results 21 to 30 of about 9,129 (215)

A Characterization of Commutative Group Rings Whose Units Are Feckly Trivial

open access: yesMathematics
Characterizing specific types of units in group rings in terms of the Jacobson radical constitutes a frequently investigated problem in the theory of group rings.
Ömer Küsmüş
doaj   +1 more source

Study on Deformation Characteristics of Low-Highway Subgrade under Traffic Load

open access: yesApplied Sciences, 2022
Highway subgrade bears millions of traffic loads over the years, and its strength, stiffness, and long-term stability gradually decline. In this paper, dynamic triaxial tests were carried out to study the time evolution and spatial distribution of strain
Hui Qi   +6 more
doaj   +1 more source

Representations of group rings and groups [PDF]

open access: yesInternational Journal of Group Theory, 2018
An isomorphism between the group ring of a finite group and a ring of certain block diagonal matrices is established. It is shown that for any group ring matrix $A$ of $mathbb{C} G$ there exists a matrix $U$ (independent of $A$) such that $U^{-1}AU= diag(
Ted Hurley
doaj   +1 more source

Integration of Nodal and BMP Signaling by Mutual Signaling Effector Antagonism

open access: yesCell Reports, 2020
Summary: Opposing sources of bone morphogenetic protein (BMP) and Nodal signaling molecules are sufficient to induce the formation of a full axis in zebrafish embryos.
Gary Huiming Soh   +2 more
doaj   +1 more source

Development of Rotaxanes as E-Field-Sensitive Superstructures in Plasmonic Nano-Antennas

open access: yesOrganic Materials, 2022
We present the concept of electrostatic field-driven supramolecular translation within electrically connected plasmonic nano-antennas. The antenna serves as an anchoring point for the mechanically interlocked molecules, as an electrode for the ...
Laurent Jucker   +5 more
doaj   +1 more source

A remark on group rings of periodic groups [PDF]

open access: yesInternational Journal of Group Theory, 2016
A positive solution of the problem of the existence of nontrivial pairs of zero-divisors in group rings of free Burnside groups of sufficiently large odd periods $n>10^{10}$ obtained previously by S. V. Ivanov and R. Mikhailov extended to all odd periods
Artur Grigoryan
doaj  

Design of Contactlessly Powered and Piezoelectrically Actuated Tools for Non-Resonant Vibration Assisted Milling

open access: yesActuators, 2018
This contribution presents a novel design approach for vibration assisted machining (VAM). A lot of research has already been done regarding the influence of superimposed vibrations during a milling process, but there is almost no information about how ...
Martin Silge, Thomas Sattel
doaj   +1 more source

Reversible group rings

open access: yesJournal of Algebra, 2004
An associative ring \(R\) with identity is said to be reversible if \(ab=0\) implies \(ba=0\) for all \(a,b\in R\). The main problem of this paper is the question when the group ring \(K[G]\) of a group \(G\) over a field \(K\) is reversible. The authors prove that if \(G\) is a non-Abelian torsion group and \(K[G]\) is reversible, then \(G\) is ...
Gutan, Marin, Kisielewicz, Andrzej
openaire   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Stiffness Considerations for a MEMS-Based Weighing Cell

open access: yesSensors, 2023
In this paper, a miniaturized weighing cell that is based on a micro-electro-mechanical-system (MEMS) is discussed. The MEMS-based weighing cell is inspired by macroscopic electromagnetic force compensation (EMFC) weighing cells and one of the crucial ...
Karin Wedrich   +4 more
doaj   +1 more source

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