Results 101 to 110 of about 582,737 (274)

Generalizations of reversible and symmetric rings

, 2022
Tez temel kavramlar ve üç ana başlıktan oluşmaktadır. İlki merkezi terslenebilir halkalardır. Merkezi terslenebilir halkalar; terslenebilir halkaların bir genelleştirmesidir.
Yalçın, Ruhi
core  

Pathological modules over tame rings [PDF]

, 1976
Brenner S, Ringel CM. Pathological modules over tame rings. Journal of the London Mathematical Society.
Ringel, Claus Michael, Brenner, Sheila
core   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

Acid/Base‐Triggered (Chir)Optical Switching and Efficient Singlet Oxygen Generation from a Pyrene‐Extended Azahelicene

ChemistryEurope
A pyrene‐extended azahelicene comprising 14 fused aromatic rings has been synthesized, featuring reversible protonation in solution that enables tunable optoelectronic and chiroptical responses.
Sudeep Sarkar, Nicolas Oliveira Decarli, Damien Jardel, Eric Merlet, Gediminas Jonusauskas, Tadashi Mori, Brice Kauffmann, Yann Ferrand, Nathan McClenaghan, Céline Olivier   +9 more
doaj   +1 more source

An Idempotent-Based Generalization of Semicommutative Rings

Mathematics
We introduce and study several new classes of rings defined by idempotent conditions. A ring R is called i-semicommutative if (1−ab)aRb(1−ab)=0 whenever ab is a nonzero idempotent. This property lies strictly between semicommutativity and i-reversibility
Muhammad Saad, Majed Zailaee
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Electronically tunable luminescent bis(biaryl-substituted triarylamine) ((bTAA)2) electrophores prepared via oxidative dimerization of modularly accessible arylated monomers [PDF]

RSC Advances
Bis(biaryl-substituted triarylamines) ((bTAA)2) are readily synthesized by oxidative homocoupling from modularly accessible biaryl-substituted triarylamine (bTAA) monomers.
Regina Kohlbecher, Monika Flörke, David Kempe, Thomas J. J. Müller   +3 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

FIXED PROLONGED REGIME OF COMBINED ORAL CONTRACEPTIVES (COC) INTAKE IN SOLUTION OF CLASSIC CONTRACEPTION ISSUES (LITERATURE REVIEW)

Медицинский совет, 2017
Combined oral contraceptives (COC) – the most popular reversible method to prevent unwanted pregnancy used in the whole world. The popularity of COC remains unchanged since the moment of their appearance [1]. Thus, in the US COC are used by each 4 out of
V. N. Prilepskaya, E. A. Minaeva
doaj   +1 more source