Results 71 to 80 of about 3,198 (227)

Groups in which each subgroup is commensurable with a normal subgroup [PDF]

open access: yes, 2018
A group G is a cn-group if for each subgroup H of G there exists a normal subgroup N of G such that the index |HN : (H ∩ N)| is finite. The class of cn-groups contains properly the classes of core-finite groups and that of groups in which each subgroup ...
Carlo Casolo   +5 more
core   +1 more source

Large‐Scale Growth of Self‐Poled Ferroelectric Rashba Semiconductor α‐GeTe(111) Thin Films: A Crucial Step Towards Future CMOS‐Compatible Ferroelectric Spintronic Devices

open access: yesAdvanced Science, EarlyView.
Ferroelectric Rashba semiconductors promise ultralow‐power devices but lack industry‐quality films. This work demonstrates CMOS‐compatible fabrication of high‐quality α‐GeTe(111) films via magnetron sputtering, enabled by a 5 nm Sb2Te3 seed layer. Structural and ferroelectric analyses show robust, switchable polarization comparable to MBE films, paving
Jules Lagrave   +14 more
wiley   +1 more source

Single‐Atom Intercalation‐Driven Topological Ferroelectric Metal for High‐Performance Hydrogen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
Single‐atom Cu intercalation enables porous AB3 monolayers to integrate ferroelectricity, metallicity, topology, and hydrogen evolution catalysis in one platform. Switchable FE polarization modulates work function and hydrogen adsorption thermodynamics, providing an electrically controllable route to activate basal‐plane HER activity in topological ...
Rongxuan Lu   +4 more
wiley   +1 more source

Dynamically Modified Flexible Zn Powder Anodes with Stable Performance at High Rate and High Zn Utilization

open access: yesAdvanced Science, EarlyView.
A dynamically shape‐variant liquid metal‐based network is integrated into Zn powder electrode, where intrinsic fluidity and structural adaptability of the liquid metal‐based network enable effective mitigation of dendritic growth, alleviation of stress accumulation, and prevention of Zn loss during Zn plating‐stripping processes.
Yuxuan Wang   +9 more
wiley   +1 more source

Field‐Frustrated Cooperative Distortions: Suppressing Jahn‐Teller Ordering via Microwave Annealing

open access: yesAdvanced Science, EarlyView.
Microwave annealing decouples local Jahn‐Teller distortions from long‐range cooperative ordering in CuFe2O4, stabilizing a metastable cubic phase that remains locally distorted yet globally symmetry‐frustrated. Synchrotron XRD, PDF, XPS, and in situ thermal cycling reveal how non‐equilibrium MW‐phonon interactions suppress cooperative orbital‐lattice ...
Daryoosh Vashaee, Kelvin Dsouza
wiley   +1 more source

Factorization of Periodic Locally Solvable Groups by Locally Nilpotent and Nilpotent Subgroups

open access: yes, 2001
Одержано ряд нових результатів про періодичні локально розв'язні та скінченні розв'язні групи G−AB із локально пільпотептпими або иільпотет ними підгрупами A і B.We establish a series of new results concerning periodic locally solvable and finite ...
Черников, Н.С.
core  

Groups with some families of complemented subgroups

open access: yes, 2020
A subgroup H of a group G is said to be complemented in G if there exists a subgroup K of G such that G= HK and H∩ K= 1. We prove that, for a locally soluble group G, all cyclic subgroups are complemented if and only if it is the semidirect product of ...
Camp-Mora S., Monetta C.
core   +1 more source

All‐Flex Plasma Patch for In Vivo Delivery of Reactive Species

open access: yesAdvanced Science, EarlyView.
A fully flexible plasma patch enables stable, conformal treatment on complex biological surfaces and enhances transdermal delivery of reactive species. This platform achieves significant tumor suppression in vivo and reveals coordinated regulation of calcium signaling, metabolism, and programmed cell death, providing a promising strategy for safe and ...
Luxiang Zhao   +8 more
wiley   +1 more source

Groups with many subnormal subgroups

open access: yes, 2003
A generalization of groups with all subgroups subnormal is studied. In particular, we prove that a group G with a finite subgroup F such that every subgroup containing F is subnormal of bounded defect, is finite-by-(nilpotent of bounded class) provided ...
Detomi, Eloisa   +2 more
core   +1 more source

Biointegrated Multilayer Stretchable OLED Platform With Strain‐Decoupled Architecture for Durable Phototherapeutic Applications

open access: yesAdvanced Science, EarlyView.
A multilayer stretchable organic light‐emitting diode (SOLED) patch enables conformal, high‐fill‐factor phototherapeutic illumination through vertically decoupled electrodes and robust encapsulation. The textile‐based SOLED platform delivers stable skin‐contact red light for wearable phototherapy and 5‐aminolevulinic acid (ALA)‐mediated photodynamic ...
Young Hyun Son   +5 more
wiley   +1 more source

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