Results 111 to 120 of about 9,971,653 (340)

On the orbits of G-closure points of ultimately nonexpansive mappings

Fixed Point Theory and Applications, 2006
Let X be a closed subset of a Banach space and G an ultimately nonexpansive commutative semigroup of continuous selfmappings. If the G-closure of X is nonempty, then the closure of the orbit of any G-closure point is a commutative topological group.
Mo Tak Kiang
doaj   +1 more source

Extensions of closure spaces

Applied General Topology, 2003
A closure space X is a set endowed with a closure operator P(X) → P(X), satisfying the usual topological axioms, except finite additivity. A T1 closure extension Y of a closure space X induces a structure ϒ on X satisfying the smallness axioms introduced
D. Deses, A. de Groot-Van der Voorde, E. Lowen-Colebunders   +2 more
doaj   +1 more source

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

Student behavior during a school closure caused by pandemic influenza A/H1N1 [PDF]

, 2010
Background: Many schools were temporarily closed in response to outbreaks of the recently emerged pandemic influenza A/H1N1 virus. The effectiveness of closing schools to reduce transmission depends largely on student/family behavior during the closure ...
Goldstein Edward, Lajous Martin, Lipsitch Marc, Goldstein, Edward, Miller, Joel, Danon Leon, Leon Danon, Lipsitch, Marc, O'Hagan, Justin J., Justin J O'Hagan, Edward Goldstein, Lajous, Martin, Martin Lajous, O'Hagan, Justin, Miller Joel C., Joel C Miller, Marc Lipsitch, Danon, Leon, Miller, Joel C., O'Hagan Justin J.   +19 more
core   +2 more sources

Living Inside the UA Space Analog

Immediate accessThis item is made available by the University of Arizona Center for Human Space Exploration (CHaSE) with support from the University of Arizona Libraries.
Tresch, Trent
core   +4 more sources

Management Of Mandibular Lateral Incisor Agenesis With Skeletal Class III Malocclusion by Space Closing Technique

Indonesian Journal of Dental Medicine, 2018
Background: Patients with congenital absence of a mandibular lateral incisor are often found having difficulty in achieving adequate functional occlusion. It may affect esthetics, mastication, speech, and occlusal balance. Purpose: This paper reported an
Fidiyah Inayati, I Gusti Aju Wahju Ardani   +1 more
doaj   +1 more source

Fuzzy closure spaces

Journal of Mathematical Analysis and Applications, 1985
The authors study a fuzzy analogue of the closure spaces introduced by \textit{E. Čech} [Topological spaces (1966); pp. 237-241]. Here a closure operator need not be idempotent. The authors note the relation between fuzzy closure spaces and fuzzy topologies, construct closures for products and disjoint unions, and introduce weak versions of continuity ...
Mashhour, A.S, Ghanim, M.H
openaire   +2 more sources

Smaller is better: nanobodies meet NMR

FEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

On Bisimilarity for Quasi-discrete Closure Spaces

Logical Methods in Computer Science
Closure spaces, a generalisation of topological spaces, have shown to be a convenient theoretical framework for spatial model checking. The closure operator of closure spaces and quasi-discrete closure spaces induces a notion of neighborhood akin to that of topological spaces that build on open sets. For closure models and quasi-discrete closure models,
Ciancia V., Latella D., Massink M., De Vink E. P.   +3 more
openaire   +3 more sources

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

FEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source