Results 31 to 40 of about 1,713,760 (284)
Distribution of molecular species of sphingomyelins in different parts of bovine digestive tract
Sphingomyelins were isolated from mucosal layers of bovine rennet stomach, duodenum, jejunoileum, and colon ascendens. The ceramides obtained after phospholipase degradation were characterized by thin-layer chromatography, mass spectrometry, and gas ...
M.E. Breimer
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Tripterygium glycosides tablets (TGT) are widely used for treating nephrotic syndrome (NS), but hepatotoxicity is frequently reported. The presence of underlying disease(s) can alter the disposition of drugs and affect their efficacy and toxicity ...
Wei Wu +15 more
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Fast Computation of Minimal Interpolation Bases in Popov Form for Arbitrary Shifts [PDF]
We compute minimal bases of solutions for a general interpolation problem, which encompasses Hermite-Pad\'e approximation and constrained multivariate interpolation, and has applications in coding theory and security.
Jeannerod, Claude-Pierre +3 more
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We quote the author's words: ``In \textit{H. P. Schlickewei} and \textit{S. A. Stepanov} [J. Number Theory 44, 30-40 (1993; Zbl 0780.11053), Theorem 1.1], the authors constructed a normal basis of a cyclic extension field \(\mathcal L\) of \(\mathbb{Q}\). The content of this note is a simpler construction that works in the general abelian case, too''.
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The base analogs 6-N-hydroxylaminopurine (HAP) and 2-amino-HAP (AHAP) are potent mutagens in bacteria and eukaryotic organisms. Previously, we demonstrated that a defect in the Escherichia coli ycbX gene, encoding a molybdenum cofactor-dependent ...
Stanislav G. Kozmin +3 more
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Normal Elliptic Bases and Torus-Based Cryptography
We consider representations of algebraic tori $T_n(F_q)$ over finite fields. We make use of normal elliptic bases to show that, for infinitely many squarefree integers $n$ and infinitely many values of $q$, we can encode $m$ torus elements, to a small ...
Dunand, Clement, Lercier, Reynald
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\( X \) is a \( T_{1} \) space, \( \mathscr{B} \) is a class of open sets of \( X \) containing \( X \) and the empty set \( \emptyset \). \( \mathscr{B} \) satisfies a kind of complete regularity condition called ''base condition''. Among \( x \in X \), the filter \( \mathscr{V}(x) \) of all neighbourhoods of \( x \) is a maximal \( \mathscr{B ...
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DNA repair glycosylase hNEIL1 triages damaged bases via competing interaction modes
hNEIL1 (human endonuclease VIII-like 1) is a broadly specific DNA glycosylase for base excision repair. Here, the authors show that hNEIL1 can assume activated or triage conformations: the structural basis for the mechanism that enables broad specificity
Menghao Liu +9 more
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Self-Dual Integral Normal Bases and Galois Module Structure
Let $N/F$ be an odd degree Galois extension of number fields with Galois group $G$ and rings of integers ${\mathfrak O}_N$ and ${\mathfrak O}_F=\bo$ respectively. Let $\mathcal{A}$ be the unique fractional ${\mathfrak O}_N$-ideal with square equal to the
Pickett, Erik Jarl, Vinatier, Stéphane
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Remark on ``On Normal Integral Bases'' [PDF]
We can easily extend Theorem 2 of [ibid. 7, 221-231 (1984; Zbl 0553.12001)] to the following theorem: Suppose that \(\ell\) is an odd prime and a \((\neq \pm 1)\) is a rational integer without \(\ell\)-th power factor such that \(a^{\ell -1}\equiv 1 mod \ell^ 2\). Then \({\mathbb{Q}}(\zeta_{\ell},^{\ell}\sqrt{a})/{\mathbb{Q}}(\zeta_{\ell})\) has always
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