Results 211 to 220 of about 316,441 (268)

DNA Assembly Templated by Chiral Nanotube Lattices: From Helix to Rings. [PDF]

J Am Chem Soc
Sonani RR, Alizadehmojarad AA, Hurley N, Hihath J, Strano MS, Egelman EH, Zheng M.   +6 more
europepmc   +1 more source

Failure analysis and structural design improvement of support device for heavy-duty rack and pinion hydraulic actuator. [PDF]

Sci Rep
Zhang D, Luan B, Chen F, Zhu X, Xie Y, Wan Y, Ji S, Wang C, Choi JH.   +8 more
europepmc   +1 more source

Pharmacological Effects of Angiotensin 1-7 on Venous Vascular Tone. [PDF]

Biomedicines
Daci A, Berisha H, Rexhbeqaj E, Berisha I, Zenuni K, Magni P.   +5 more
europepmc   +1 more source

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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.
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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 ...
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On the Ring of Quotients of a Boolean Ring

Canadian Mathematical Bulletin, 1959
Two important mathematical constructions are: the construction of the rational s from the integers and the construction of the reals from the rationals. The first process can be carried out for any ring, producing its maximal ring of quotients [4, 5]. The second process can be carried out for any partially ordered set producing its Dedekind-MacNeille ...
Brainerd, B., Lambek, J.
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Rings of Quotients of Rings of Derivations

Canadian Mathematical Bulletin, 1968
The concept of a rational extension of a Lie module is defined as in the associative case [1, pp. 81 and 79]. It then follows from [3, Theorem 2.3] that any Lie module possesses a maximal rational extension (a rational completion), unique up to isomorphism.
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“Ring Within a Ring”

Journal of Cutaneous Medicine and Surgery, 2021
Farhat Fatima, Anupam Das
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