Results 31 to 40 of about 119,379 (305)
Sensors, 2015 A series of rhodamine derivatives L1–L3 have been prepared and characterized by IR, 1H-NMR, 13C-NMR and ESI-MS. These compounds exhibited selective and sensitive “turn-on” fluorescent and colorimetric responses to Al3+ in methanol.
Naveen Mergu +2 more
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Constants of Algebraic Derivations in Prime Rings
Communications in Algebra, 2008 Let R be a prime ring with extended centroid F and δ an F-algebraic derivation of R with the associated inner derivation ad(b). Set , the subring of constants of δ in R. We characterize the primeness and semiprimeness of R (δ) by the minimal polynomial μ(λ) of b over F.
Chuang, C.-L, Lee, T.-K, Zhou, Y.
openaire +2 more sources
Diophantine Undecidability over Algebraic Function Fields over Finite Fields of Constants
, 1996 We show that Diophantine problem (otherwise known as Hilbert's Tenth Problem) is undecidable over the fields of algebraic functions over the finite fields of constants of characteristic greater than two.
Alexandra Shlapentokh
semanticscholar +1 more source
The cryogenic storage ring CSR. [PDF]
Review of Scientific Instruments, 2016 An electrostatic cryogenic storage ring, CSR, for beams of anions and cations with up to 300 keV kinetic energy per unit charge has been designed, constructed, and put into operation.
R. Hahn +60 more
semanticscholar +1 more source
Constrained dynamics of a polymer ring enclosing a constant area [PDF]
Physical Review E, 2005 6 ...
Dua, A., Vilgis, T.
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, 2003 A new Karplus equation for pseudorotating five-membered rings is derived by expanding calculated NMR spin−spin coupling constants (SSCCs) J as a function J(q,φ) of the puckering amplitude q and the...
Anan Wu, D. Cremer
semanticscholar +1 more source
A variant of the large sieve inequality with explicit constants
Journal of Mathematical Cryptology, 2020 We give an effective version with explicit constants of the large sieve inequality for imaginary quadratic fields. Explicit results of this kind are useful for estimating the computational complexity of algorithms which generate elements, whose norm is a
Grześkowiak Maciej
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Molecules, 2021 We report the observation and analysis of the rotational spectrum of a 1:1 cluster between 2-aminopyridine and water (AMW) carried out with supersonic expansion Fourier transform microwave spectroscopy at 4.7–16.5 GHz. Measurements of the 2-aminopyridine
Adam Kraśnicki +2 more
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The chiral ring of a symmetric orbifold and its large N limit
Journal of High Energy Physics, 2023 We analyze the chiral operator ring of the symmetric orbifold conformal field theory on the complex two-plane ℂ2. We compute the large N limit of the ring and exhibit its factorized leading order behaviour.
Sujay K. Ashok, Jan Troost
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Influence of per-O-sulfation upon the conformational behaviour of common furanosides
Beilstein Journal of Organic Chemistry, 2019 The studies on the recently discovered pyranoside-into-furanoside rearrangement have led us to conformational investigations of furanosides upon their total sulfation.
Alexey G. Gerbst +6 more
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