Results 11 to 20 of about 34,020 (261)

Recent Progress in Azopyridine-Containing Supramolecular Assembly: From Photoresponsive Liquid Crystals to Light-Driven Devices

open access: yesMolecules, 2022
Azobenzene derivatives have become one of the most famous photoresponsive chromophores in the past few decades for their reversible molecular switches upon the irradiation of actinic light.
Hao Ren, Peng Yang, Haifeng Yu
doaj   +1 more source

A STUDY ON TRI REVERSIBLE RINGS [PDF]

open access: yesJournal of Algebraic Systems
This article embodies a ring theoretic property which, preserves the reversibility of elements at non-zero tripotents. A ring R is defined as quasi tri reversible if any non-zero tripotent element ab of R implies ba is also a tripotent element in R for a,
Hussain Mohammed Imdadul Hoque   +1 more
doaj   +1 more source

The Influence of an Extended π Electron System on the Electrochemical Properties and Oxidizing Activity of a Series of Iron(III) Porphyrazines with Bulky Pyrrolyl Substituents

open access: yesMolecules, 2023
The present study investigates four iron(II/III) porphyrazines with extending pyrrolyl peripheral substituents to understand the impact of introduced phenyl rings on the macrocycle’s electrochemical and spectroelectrochemical properties as well as their ...
Tomasz Koczorowski, Tomasz Rębiś
doaj   +1 more source

On $\mathcal Z$-reflexive rings [PDF]

open access: yesMathematica Bohemica
We introduce the notion of $\mathcal Z$-reflexive rings to describe reflexivity of rings in terms of their singular ideals. We show that $\mathcal Z$-reflexive ring is proper common generalization of a central reflexive ring, $\mathcal Z$-reversible ring,
Nirbhay Kumar
doaj   +1 more source

Recent Progress in Porous Fused Aromatic Networks and Their Applications

open access: yesSmall Science, 2021
Porous materials are ubiquitous in nature and play central roles in ecosystems and human life. Porous fused aromatic networks (P‐FANs) are emerging as a new class of porous organic materials, which can be precisely constructed from organic precursors via
Ishfaq Ahmad   +2 more
doaj   +1 more source

Regulated extravascular microenvironment via reversible thermosensitive hydrogel for inhibiting calcium influx and vasospasm

open access: yesBioactive Materials, 2023
Arterial vasospasm after microsurgery can cause severe obstruction of blood flow manifested as low tissue temperature, leading to tissue necrosis. The timely discovery and synchronized treatment become pivotal.
Binfan Zhao   +11 more
doaj   +1 more source

A generalization of reflexive rings [PDF]

open access: yesMathematica Bohemica
We introduce a class of rings which is a generalization of reflexive rings and $J$-reversible rings. Let $R$ be a ring with identity and $J(R)$ denote the Jacobson radical of $R$.
Mete Burak Çalcı   +2 more
doaj   +1 more source

Directed zero-divisor graph and skew power series rings [PDF]

open access: yesTransactions on Combinatorics, 2018
‎Let $R$ be an associative ring with identity and $Z^{\ast}(R)$ be its set of non-zero zero-divisors‎. ‎Zero-divisor graphs of rings are well represented in the literature of commutative and non-commutative rings‎. ‎The directed zero-divisor graph of $R$‎
Ebrahim Hashemi   +2 more
doaj   +1 more source

On a Generalized Semicommutative Ring

open access: yesTikrit Journal of Pure Science, 2019
Let R be a ring with identity. In this paper, we introduce some new results in a class of rings which refers to generalization of semicommutative rings called Q-semicommutative rings whenever x2=0 implies xRx=0, for any a ∈R [7]. They study investigates
Mustafa D. AL-Obaidi, Sinan O. AL-Salihi
doaj   +1 more source

DNA codes over finite local Frobenius non-chain rings of length 5 and nilpotency index 4

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
A one to one correspondence between the elements of a finite local Frobenius non-chain ring of length 5 and nilpotency index 4, and k-tuples of DNA codewords is established.
Castillo-Guillén C. A.   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy