Results 181 to 190 of about 351,850 (226)

Protolytic properties and biological activity of spinorphin and its butyric acid derivatives in aqueous solution. [PDF]

Amino Acids
Pająk M, Kamysz E, Banach M, Jankowski WM, Tarasiuk-Zawadzka A, Fichna J, Woźniczka M.   +6 more
europepmc   +1 more source

New Molecular Insights on Gabapentin. [PDF]

ACS Phys Chem Au
Municio S, Mato S, Alonso JL, Alonso ER, León I.   +4 more
europepmc   +1 more source

EMA-based fitting of optical transitions in CoPc: insights into carrier dynamics. [PDF]

RSC Adv
Almaymoni NK, Alghamdi SM, Abdo AS, Elsharkawy WB, Alsulami T, Al-Fakeh MS, Mostafa AM, Abouelsayed A.   +7 more
europepmc   +1 more source

Probing Hydrogen-Bonding Preferences and Methyl Internal Rotation in Sotolon and Sotolon-(H₂O)_1,2. [PDF]

Int J Mol Sci
Verde A, López JC, Blanco S.
europepmc   +1 more source

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Numerical estimates for a Grötzsch ring constant

Constructive Approximation, 1988
The paper studies the behavior of the modulus \(M_ n(a)\) of the Grötzsch extremal ring \(R_{G,n}(a)\subset {\mathfrak R}^ n\) as a tends to 0. In the first two parts lower and upper estimates are obtained for \[ \lim_{a\to 0}(M_ n(a)+\log a). \] The lower estimates are given in terms of n; the upper estimates are obtained numerically for \(3\leq n\leq
G. D. Anderson, J. S. Frame
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Spring constants of capsular tension rings

Journal of Cataract and Refractive Surgery, 2004
To determine the spring constants of several types of capsular tension rings (CTRs).Department of Ophthalmology, Johannes Gutenberg-University, Mainz, Germany.Fourteen models of CTRs provided by 9 companies were tested; all were 11.0 mm in diameter.
Sabine Kurz, H. Burkhard Dick
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Rings of Eventually Constant Sequences

Journal of Mathematical Sciences, 2003
All rings are assumed to be associative and to have non-zero identity elements. Throughout \(A\) is a ring with Jacobson radical \(J(A)\), \(B\) is a unitary subring in \(A\), \(\{A_i\}_{i=1}^\infty\) is a countable set of copies of \(A\), \(D\) is the direct product of all the rings \(A_i\), \(B'\) is the subring \(\{(b,b,\dots)\mid b\in B\}\) of \(D\)
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On constant Armendariz rings

Asian-European Journal of Mathematics, 2016
Let [Formula: see text] be a ring equipped with an endomorphism [Formula: see text] and an [Formula: see text]-derivation [Formula: see text]. In this article, we study [Formula: see text]-constant Armendariz rings and radicals of the Ore extension [Formula: see text], in terms of a [Formula: see text]-constant Armendariz ring [Formula: see text] with
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CONSTANTS OF DERIVATIONS OF PRIME RINGS

Mathematics of the USSR-Izvestiya, 1982
A Galois correspondence theorem is proved for any finite-dimensional Lie -algebra of outer derivations of a prime ring of positive characteristic. A theorem is proved on the existence of a locally finite ideal, in the sense of Sirsov, over the ring of constants of such a Lie -algebra. Extension and rigidity theorems are also obtained.
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