Results 1 to 10 of about 21,283 (139)

Composite Hurwitz Rings as PF-Rings and PP-Rings [PDF]

open access: yesMathematics, 2020
Let R ⊆ T be an extension of commutative rings with identity and H ( R , T ) (respectively, h ( R , T ) ) the composite Hurwitz series ring (respectively, composite Hurwitz polynomial ring).
Dong Kyu Kim, Jung Wook Lim
doaj   +13 more sources

On Generalized PF – Rings [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2004
The aim of this paper is to extend several known results on GPF –rings. π-regular rings, PF-rings and GP-ideals are also considered. Among other results we prove that: If R is a uniform ring, then R is a GPF-ring if and only if every element of R is ...
Nazar Shuker, Husam Mohammad
doaj   +2 more sources

Multi-omics analysis reveals RNA polymerase II degradation as a novel mechanism of PF-3758309’s anti-tumor activity [PDF]

open access: yesCell Death Discovery
PF-3758309, a pyrrolopyrimidine-based inhibitor of p21-activated kinase 4 (PAK4), has demonstrated preclinical anti-tumor activity. However, due to poor pharmacokinetics and off-target effects, it has not advanced to clinical use.
Xinglong Jia   +11 more
doaj   +2 more sources

Inhibitory Effects of Pepper Mild Mottle Virus Infection by Supernatants of Five Bacterial Cultures in Capsicum annuum L. [PDF]

open access: yesThe Plant Pathology Journal, 2022
Pepper mild mottle virus (PMMoV), one of the most prevalent viruses in chili pepper (Capsicum annuum L.) is a non-enveloped, rod-shaped, single-stranded positive-sense RNA virus classified in the genus Tobamovirus.
Venkata Subba Reddy Gangireddygari   +3 more
doaj   +1 more source

Suppression of eddy-current effects in beam injection using a pulsed sextupole magnet with a new ceramic chamber

open access: yesPhysical Review Accelerators and Beams, 2022
At the Photon Factory storage ring (PF ring) of the High Energy Accelerator Research Organization (KEK), a pulsed sextupole magnet (PSM) has been used for top-up injection for the first time.
Chikaori Mitsuda   +8 more
doaj   +1 more source

Nopol-Based Quinoline Derivatives as Antiplasmodial Agents

open access: yesMolecules, 2021
Malaria remains a significant cause of morbidity and mortality in Sub-Saharan Africa and South Asia. While clinical antimalarials are efficacious when administered according to local guidelines, resistance to every class of antimalarials is a persistent ...
Rogers J. Nyamwihura   +4 more
doaj   +1 more source

Positional Isomerism in the N^N Ligand: How Much Difference Does a Methyl Group Make in [Cu(P^P)(N^N)]+ Complexes?

open access: yesMolecules, 2020
The synthesis and structural characterization of 5,6′-dimethyl-2,2′-bipyridine (5,6′-Me2bpy) are reported, along with the preparations and characterizations of [Cu(POP)(5,6′-Me2bpy)][PF6] and [Cu(xantphos)(5,6′-Me2bpy)][PF6] (POP = bis(2 ...
Fabian Brunner   +3 more
doaj   +1 more source

Gestural focus marking in Italo-Romance

open access: yesIsogloss, 2023
Gesture has been a topic of recent interest in formal linguistics, especially with respectto its pragmatic and semantic properties (Lascarides & Stone 2009a,b; Ebert & Ebert2014; Schlenker 2018; Esipova 2019a). There is emerging consensus within this
Valentina Colasanti
doaj   +1 more source

Generalized derivations of order $2$ on multilinear polynomials in prime rings

open access: yesМатематичні Студії, 2022
Let $R$ be a prime ring of characteristic different from $2$ with a right Martindale quotient ring $Q_r$ and an extended centroid $C$. Let $F$ be a non zero generalized derivation of $R$ and $S$ be the set of evaluations of a non-central valued ...
B. Prajapati, C. Gupta
doaj   +1 more source

Evidence of Counterion Size Effect on the Stability of Columnar Phase of Ionic Liquid Crystals Based on Pyridinium Salts Derived from N-3,4,5-Tri(alkyloxy)-benzyl-4-pyridones

open access: yesCrystals, 2022
The synthesis and characterization of novel ionic liquid crystals based on pyridinium salts with Br− and PF6− counterions are described in this work. These pyridinium salts were derived from 4-hydroxypyridine, both by N- and O-alkylation.
Isabela Dumitru   +7 more
doaj   +1 more source

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