Results 261 to 270 of about 1,393,313 (319)

Febrile Temperature Augments Ring-stage Plasmodium falciparum Adhesion to Brain Endothelial Cells. [PDF]

J Infect Dis
Joof F, Hu R, Seydel KB, Cohee LM, Zheng Y, Smith JD.   +5 more
europepmc   +1 more source

Molecular Editing of Bilobalide: Regioselective C-Ring Lactam Formation. [PDF]

Org Lett
Wang W, Scheeff S, Hau SC, Qin Y, Sillapachaiyaporn C, Ng BW.   +5 more
europepmc   +1 more source

Time-Resolved Laser-Induced Ring-Opening and Dissociation Dynamics in Bromothiophene Isomers. [PDF]

J Am Chem Soc
Frese N, Thomas M, Mishra D, LaForge AC, Bray C, Brady C, Golubev NV, Berrah N.   +7 more
europepmc   +1 more source

ON THE COEFFICIENT RING IN A SEMIGROUP RING

Mathematics of the USSR-Izvestiya, 1976
In this paper we study the concept of the invariance of a ring relative to a commutative semigroup. Invariance is proved for certain Prufer rings and affine algebras relative to semigroups of a special class.Bibliography: 11 titles.
openaire   +2 more sources

Ring of Rings

Science, 2011
Chemistry The abstract prospect of using a circle to derive a square has intrigued scholars of geometry for centuries. Segawa et al. have now used a square to derive a circle. The arena in this case was chemistry, rather than mathematics, and the task at hand was to assemble a molecular ring composed in turn of 12 benzene rings, linked to one another ...
openaire   +1 more source

COUNTABLE RINGS AS ENDOMORPHISM RINGS

The Quarterly Journal of Mathematics, 1988
Let \(\sum \leq \prod\) be the direct sum and product of countably many copies of the integers, let \(\sum \leq D\leq \prod\) such that D/\(\sum\) is the divisible part of \(\prod /\sum\), and let \(e_ n=(\delta_{in})_{i\in {\mathbb{N}}}\in \prod\) be the generalized n-th unit vector.
Dugas, M., Irwin, J., Khabbaz, S.
openaire   +1 more source