Results 41 to 50 of about 1,879,895 (298)
1,3,5-Tri-p-tolylpentane-1,5-dione
Acta Crystallographica Section E, 2008 In the crystal structure of the title compound, C26H26O2, the dihedral angle between the tolyl rings at each end of the 1,5-dione chain is 70.3 (1)°; the tolyl group at the middle of the chain makes dihedral angles of 67.8 (2) and 85.1 ...
You-Liang Shen
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Structure of a chain ring as a ring of matrices over a Galois ring
AIMS Mathematics, 2022 <abstract><p>The structure of a finite chain ring has already been described by Wirt in 1972 and others later. The purpose of this article is to describe another structure of a finite chain ring as a ring of square matrices over Galois ring using the companion matrix of a certain Eisenstein polynomial over Galois ring.
Yousef Alkhamees, Badr Alhajouj
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye +33 more
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3β-Chlorocholest-5-en-7-one
Acta Crystallographica Section E, 2010 The title compound, C27H43ClO, is a steroid derivative composed of a saturated carbon fused-ring framework with an alkyl side chain. The A and C rings have chair conformations and the B and D rings assume half-chair conformations.
Hoong-Kun Fun +4 more
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On f-Rings with the Ascending Chain Condition [PDF]
Proceedings of the American Mathematical Society, 1962 Introduction. In [1] Birkhoff and Pierce obtain the structure of f-rings2 which have no nonzero nilpotent elements and satisfy the descending chain condition for i-ideals. More recently, D. G. Johnson [4] gives the structure of J-semi-simple f-rings (?2) with the descending chain condition for i-ideals.
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Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
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SMARANDACHE NON-ASSOCIATIVE RINGS [PDF]
, 2002 An associative ring is just realized or built using reals or complex; finite or infinite by defining two binary operations on it. But on the contrary when we want to define or study or even introduce a non-associative ring we need two separate algebraic ...
Vasantha, Kandasamy
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N,N′-Bis(2-azaniumylbenzyl)ethane-1,2-diaminium tetrachloride
Acta Crystallographica Section E, 2011 The title compound, C16H26N44+·4Cl−, is based on a fully protonated tetraamine. In the cation, both benzene rings are connected by an all-trans chain, and the rings are almost parallel, with an angle between the mean planes of 8.34&
Luis Ángel Garza Rodríguez +4 more
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Chain rings and distributive rings
Matemática Contemporânea, 1994 The author reports on joint work with \textit{G. Törner} [see f.e. Proc. Am. Math. Soc. 119, No. 2, 401-405 (1993; Zbl 0810.16020)].
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Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS 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
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