Results 61 to 70 of about 3,841,255 (290)

On Commutative Reduced Baer Rings [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2004
It is shown that a commutative reduced ring R is a Baer ring if and only if it is a CS-ring; if and only if every dense subset of Spec (R) containing Max (R) is an extremally disconnected space; if and only if every non-zero ideal of R is essential in a ...
doaj  

Research on process optimization and rapid prediction method of thermal vibration stress relief for 2219 aluminum alloy rings

open access: yesReviews on Advanced Materials Science, 2022
2219 aluminum alloy rings are important part of liquid cryogenic rocket fuel tanks. Residual stress is inevitably introduced in the forming process of the rings due to the nonlinear thermomechanical coupling conditions, which will affect its mechanical ...
Chen Shuguang   +4 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

ARTINIAN \(\mathbf{M}\)-COMPLETE, \(\mathbf{M}\)-REDUCED, AND MINIMALLY \(\mathbf{M}\)-COMPLETE ASSOCIATIVE RINGS

open access: yesUral Mathematical Journal
In 1996, the first author defined analogs of the concepts of complete (divisible), reduced, and periodic abelian groups, well-known in the theory of abelian groups, for arbitrary varieties of algebras. In 2021, the first author proposed a modification of
Leonid M. Martynov, Tatiana V. Pavlova
doaj   +1 more source

Tropomyosin Tpm3.1 Is Required to Maintain the Structure and Function of the Axon Initial Segment

open access: yesiScience, 2020
Summary: The axon initial segment (AIS) is the site of action potential initiation and serves as a cargo transport filter and diffusion barrier that helps maintain neuronal polarity.
Amr Abouelezz   +11 more
doaj   +1 more source

Electrical field stimulation-induced contractions on Pantherophis guttatus corpora cavernosa and aortae. [PDF]

open access: yesPLoS ONE, 2018
A tetrodotoxin (TTX)-resistant mechanism is responsible for the electrical field stimulation (EFS)-induced contractions and relaxations of Crotalus durissus terrificus corpora cavernosa.
Rafael Campos   +7 more
doaj   +1 more source

ON COMMUTATIVE REDUCED FILIAL RINGS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2009
AbstractA ring in which every accessible subring is an ideal is called filial. We continue the study of commutative reduced filial rings started in [R. R. Andruszkiewicz and K. Pryszczepko, ‘A classification of commutative reduced filial rings’,Comm. Algebrato appear].
R. R. ANDRUSZKIEWICZ, K. PRYSZCZEPKO
openaire   +1 more source

RINGS White Paper

open access: yes, 2022
RINGS is an international initiative to facilitate collaborative international effort to map all Antarctic ice-sheet margin to accurately estimate ice discharge from Antarcitca.
RINGS Action Group
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

On Strongly - Regular Rings

open access: yesمجلة ابحاث كلية التربية الاساسية
             In our study we examine  definition of strongly γ -regular rings and associates, investigate  interplay between strongly γ - regular rings and other reduced rings. We also study GP – injective modules, and discuss its relation with strongly
Luma Ahmed Khaleel, Beyda S. Abdullah
doaj   +1 more source

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