Results 31 to 40 of about 1,713,760 (284)

Distribution of molecular species of sphingomyelins in different parts of bovine digestive tract

open access: yesJournal of Lipid Research, 1975
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
doaj   +1 more source

Differences in Multicomponent Pharmacokinetics, Tissue Distribution, and Excretion of Tripterygium Glycosides Tablets in Normal and Adriamycin–Induced Nephrotic Syndrome Rat Models and Correlations With Efficacy and Hepatotoxicity

open access: yesFrontiers in Pharmacology, 2022
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
doaj   +1 more source

Fast Computation of Minimal Interpolation Bases in Popov Form for Arbitrary Shifts [PDF]

open access: yes, 2016
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
core   +4 more sources

A Remark on Normal Bases

open access: yesJournal of Number Theory, 1996
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''.
openaire   +2 more sources

A Critical Role for the Putative NCS2 Nucleobase Permease YjcD in the Sensitivity of Escherichia coli to Cytotoxic and Mutagenic Purine Analogs

open access: yesmBio, 2013
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
doaj   +1 more source

Normal Elliptic Bases and Torus-Based Cryptography

open access: yes, 2009
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
core   +3 more sources

Normal Base Compactifications

open access: yesIndagationes Mathematicae (Proceedings), 1964
\( X \) 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 ...
openaire   +2 more sources

DNA repair glycosylase hNEIL1 triages damaged bases via competing interaction modes

open access: yesNature Communications, 2021
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
doaj   +1 more source

Self-Dual Integral Normal Bases and Galois Module Structure

open access: yes, 2011
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
core   +3 more sources

Remark on ``On Normal Integral Bases'' [PDF]

open access: yesTokyo Journal of Mathematics, 1985
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
openaire   +3 more sources

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