Results 81 to 90 of about 1,879,895 (298)
4,4′-(o-Phenylenedioxydimethylene)dipyridinium dinitrate
Acta Crystallographica Section E, 2009 The cation of the salt, C18H18N2O22+·2NO3−, lies about a twofold rotation axis. The pyridinium ring is almost coplanar with the phenylene ring [dihedral angle between rings = 5.69 (9)°].
Ping Zou +4 more
doaj +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source
(E)-N-[2-(Biphenyl-4-ylvinyl)phenyl]furan-2-carboxamide
Acta Crystallographica Section E, 2008 In the title molecule, C25H19NO2, the furyl ring is twisted by 46.3 (1)° with respect to the phenylene ring bearing the amido group. In the stilbene unit, the two phenylene rings (i.e.
Noel F. Thomas +4 more
doaj +1 more source
Prospecting the protein design landscape
FEBS Letters, EarlyView.This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona +4 more
wiley +1 more source
$\omega_1$-generated uniserial modules over chain rings
, 2004 summary:The purpose of this paper is to provide a criterion of an occurrence of uncountably generated uniserial modules over chain rings. As we show it suffices to investigate two extreme cases, nearly simple chain rings, i.e. chain rings containing only
Žemlička, Jan
core +1 more source
Glift codes over chain ring and non-chain ring \(R_{e,s}\)
, 2022 Summary: In this paper, Glift codes, generalized lifted polynomials, matrices are introduced. The advantage of Glift code is ``distance preserving'' over the ring \(\mathcal{R}\). Then optimal codes can be obtained over the rings by using Glift codes and lifted polynomials.
openaire +2 more sources
Lattice of ideals of the polynomial ring over a commutative chain ring [PDF]
Applicable Algebra in Engineering, Communication and Computing, 2015 Let $R$ be a commutative chain ring. We use a variation of Gröbner bases to study the lattice of ideals of $R[x]$. Let $I$ be a proper ideal of $R[x]$. We are interested in the following two questions: When is $R[x]/I$ Frobenius? When is $R[x]/I$ Frobenius and local? We develop algorithms for answering both questions. When the nilpotency of $\text{rad}\
openaire +3 more sources
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Structural intermediates in the assembly of taxoid-induced microtubules and GDP-tubulin double rings: time-resolved X-ray scattering [PDF]
, 1996 We have studied the self-association reactions of purified GDP-liganded tubulin into double rings and taxoid-induced microtubules, employing synchrotron time-resolved x-ray solution scattering.
Diaz, J.F. +6 more
core +1 more source
Special MatricesDeterminants of structured matrices play a fundamental role in both pure and applied mathematics, with wide-ranging applications in linear algebra, combinatorics, coding theory, and numerical analysis.
Martinez-Moro Edgar +2 more
doaj +1 more source