Results 51 to 60 of about 1,305,913 (292)

*‐Topological properties [PDF]

International Journal of Mathematics and Mathematical Sciences, 1989
An ideal on a set X is a nonempty collection of subsets of X closed under the operations of subset (heredity) and finite unions (additivity). Given a topological space (X, τ) an ideal ℐ on X and A⊆X, ψ(A) is defined as ⋃{U ∈ τ : U − A ∈ ℐ}. A topology, denoted τ*, finer than τ is generated by the basis {U − I : U ∈ τ, I ∈ ℐ}, and a topology, denoted 〈ψ(
T. R. Hamlett, David Rose
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DEGENERATE DISTRIBUTED CONTROL SYSTEMS WITH FRACTIONAL TIME DERIVATIVE

Ural Mathematical Journal, 2016
The existence of a unique strong solution for the Cauchy problem to semilinear nondegenerate fractional differential equation and for the generalized Showalter–Sidorov problem to semilinear fractional differential equation with degenerate operator at the
Marina V. Plekhanova
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Supernovae observations and cosmic topology [PDF]

, 2005
Two fundamental questions regarding our description of the Universe concern the geometry and topology of its 3-dimensional space. While geometry is a local characteristic that gives the intrinsic curvature, topology is a global feature that characterizes
Alcaniz, Allen, Aurich, Aurich, B. Mota, Bernshtein, Calberg, Calvão, Choudhury, Cornish, Cornish, Feldman, Gomero, Gomero, J. S. Alcaniz, Lachièze-Rey, Levin, Luminet, M. J. Rebouças, M. Makler, Nesseris, Pope, Rebouças, Riess, Roukema, Spergel, Starkman, Tegmark, Uzan, Weeks, Weeks   +30 more
core   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Nucleosomal DNA has topological memory

Nature Communications
One elusive aspect of the chromosome architecture is how it constrains the DNA topology. Nucleosomes stabilise negative DNA supercoils by restraining a DNA linking number difference (∆Lk) of about −1.26.
Joana Segura, Ofelia Díaz-Ingelmo, Belén Martínez-García, Alba Ayats-Fraile, Christoforos Nikolaou, Joaquim Roca   +5 more
doaj   +1 more source

TOPOLOGY FIELDS, TOPOLOGICAL FLOWS AND TOPOLOGICAL ORGANISMS [PDF]

Journal of the Chungcheong Mathematical Society, 2013
Topology may described a pattern of existence of elements of a given set X. The family of all topologies given on a set X form a complete lattice. We will give some topologies on this lattice using a topology on X and regard a topological space. A topology on X can be regarded a map from X to naturally.
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Topological nanospaser

Nanophotonics, 2020
Abstract We propose a nanospaser made of an achiral plasmonic–metal nanodisk and a two-dimensional chiral gain medium – a monolayer nanoflake of a transition-metal dichalcogenide (TMDC). When one valley of the TMDC is selectively pumped (e.g.
Rupesh Ghimire, Jhih-Sheng Wu, Vadym Apalkov, Mark I. Stockman   +3 more
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Topological quintessence [PDF]

Physical Review D, 2011
Accepted in Phys. Rev. D (to appear). Added observational bounds on parameters. 10 pages (two column revtex), 6 figures. The Mathematica files used to produce the figures of this study may be downloaded from http://leandros.physics.uoi.gr ...
Sanchez, J. C. B., Perivolaropoulos, L.
openaire   +3 more sources

A Spin-Statistics Theorem for Certain Topological Geons [PDF]

, 1996
We review the mechanism in quantum gravity whereby topological geons, particles made from non-trivial spatial topology, are endowed with nontrivial spin and statistics.
Daughton A, Friedman J L, H F Dowker, Mackey G W, R D Sorkin, Sorkin R D, Sorkin R D, Sorkin R D, Sorkin R D, Sorkin R D, Sorkin R D Quantum measure theory, Witt D   +11 more
core   +2 more sources