Results 81 to 90 of about 4,370,382 (329)
Contracting endomorphisms and dualizing complexes [PDF]
, 2012 We investigate how one can detect the dualizing property for a chain complex over a commutative local noetherian ring R. Our focus is on homological properties of contracting endomorphisms of R, e.g., the Frobenius endomorphism when R contains a field of
Nasseh, Saeed, Sather-Wagstaff, Sean
core
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
PREDICTION OF FLAT RING FATIGUE LIFE OF SCRAPER CHAIN BASED ON TEST DATA
Jixie qiangdu, 2019 In order to prevent the failure of chain flat ring fatigue failure of scraper conveyor chain, the paper based on the field test data to predict the fatigue life of the chain.
MAO Jun +3 more
doaj
Crystal structure of (tert-butylcarbamoyl)(4-chloro-2-oxo-2H-chromen-3-yl)methyl acetate
Acta Crystallographica Section E: Crystallographic Communications, 2015 In the title compound, C17H18ClNO5, which was synthesized by reacting 4-chloro-3-formylcoumarin, acetic acid and tert-butyl isocyanide, the acetamido side chain is convoluted with ring-to-side chain C—C—C—C, C—C—C—N and C—C—N—C torsion angles of −123.30 (
Tetsuji Moriguchi +4 more
doaj +1 more source
On the spectrum of a bent chain graph
, 2008 We study Schr\"odinger operators on an infinite quantum graph of a chain form which consists of identical rings connected at the touching points by $\delta$-couplings with a parameter $\alpha\in\R$. If the graph is "straight", i.e.
Albeverio S +12 more
core +2 more sources
Molecular Oncology, EarlyView.This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan +9 more
wiley +1 more source
ANALYSIS ON SPROCKET AND CHAIN RING OF SCRAPER CONVEYOR UNDER PERFORMANCES OF CHAIN JAMMED
Jixie qiangdu, 2017 The chain scraper conveyor is the most important material conveying equipment in the fully mechanized working face,and the sprocket and the chain ring is the core part of the conveyor system,the meshing problem of the sprocket and the chain ring is the ...
XIE Miao +4 more
doaj
N′-(But-2-enylidene)isonicotinohydrazide
Acta Crystallographica Section E, 2008 In the title Schiff base compound, C10H11N3O, the pyridine ring is twisted with respect to the mean plane containing the hydrazine chain, making a dihedral angle of 31.40 (9)°.
Zhi-Gang Yin +3 more
doaj +1 more source
Covering classes, strongly flat modules, and completions
, 2018 We study some closely interrelated notions of Homological Algebra: (1) We define a topology on modules over a not-necessarily commutative ring $R$ that coincides with the $R$-topology defined by Matlis when $R$ is commutative. (2) We consider the class $
Facchini, Alberto, Nazemian, Zahra
core +1 more source
Semigroups, Rings, and Markov Chains
Journal of Theoretical Probability, 2000 We analyze random walks on a class of semigroups called ``left-regular bands''. These walks include the hyperplane chamber walks of Bidigare, Hanlon, and Rockmore. Using methods of ring theory, we show that the transition matrices are diagonalizable and we calculate the eigenvalues and multiplicities.
openaire +2 more sources