Results 31 to 40 of about 1,176,555 (172)

Reflexive cones

open access: yesPositivity, 2012
Reflexive cones in Banach spaces are cones with weakly compact intersection with the unit ball. In this paper we study the structure of this class of cones. We investigate the relations between the notion of reflexive cones and the properties of their bases.
CASINI, EMANUELE GIUSEPPE   +3 more
openaire   +2 more sources

Process for control of cell division [PDF]

open access: yes, 1977
A method of controlling mitosis of biological cells was developed, which involved inducing a change in the intracellular ionic hierarchy accompanying the cellular electrical transmembrane potential difference (Esubm) of the cells. The ionic hierarchy may
Cone, C. D., Jr.
core   +1 more source

TVS-cone metric spaces as a special case of metric spaces [PDF]

open access: yes, 2012
There have been a number of generalizations of fixed point results to the so called TVS-cone metric spaces, based on a distance function that takes values in some cone with nonempty interior (solid cone) in some topological vector space. In this paper we
Aranđelović, Ivan D.   +1 more
core  

Light-cones, almost light-cones and almost-complex light-cones [PDF]

open access: yesGeneral Relativity and Gravitation, 2017
We point out an unusual relationship among a variety of null geodesic congruences; (a) the generators of ordinary light-cones and (b) certain (related) shear-free but twisting congruences in Minkowski Space-time as well as (c) asymptotically shear-free null geodesic congruences that exist in the neighborhood of Penrose's Scri in Einstein or Einstein ...
openaire   +2 more sources

Antibiotic Stewardship at transitions of care: identifying opportunities for antibiotic optimization

open access: yesAntimicrobial Stewardship & Healthcare Epidemiology
We conducted a cross-sectional study to identify the frequency of optimized oral antibiotic regimens at transitions of care (TOC) in patients diagnosed with respiratory, urinary tract, or skin structure infections. An optimal regimen was identified in 62.
Corey Johnson   +3 more
doaj   +1 more source

A New Topological Approach to Target the Existence of Solutions for Nonlinear Fractional Impulsive Wave Equations

open access: yesAxioms, 2022
This paper considers a class of fractional impulsive wave equations and improves a previous results. In fact, this paper adopts a new topological approach to prove the existence of classical solutions with a complex arguments caused by impulsive ...
Svetlin G. Georgiev   +2 more
doaj   +1 more source

Long wavelength-sensing cones of zebrafish retina exhibit multiple layers of transcriptional heterogeneity

open access: yesFrontiers in Cellular Neuroscience, 2023
IntroductionUnderstanding how photoreceptor genes are regulated is important for investigating retinal development and disease. While much is known about gene regulation in cones, the mechanism by which tandemly-replicated opsins, such as human long ...
Ashley A. Farre   +10 more
doaj   +1 more source

Comparison of aerodynamic noise from three nose-cylinder combinations [PDF]

open access: yes, 1970
Results of experiments with three different cylinder and blunted nose combinations are discussed. Combinations include smooth cylinder with single 15 deg cone, smooth cylinder with double cone of 25 and 10 deg, and longitudinally corrugated cylinder with
Guenther, R. A., Reding, M. P.
core   +1 more source

Kähler cone substructure [PDF]

open access: yesAdvances in Theoretical and Mathematical Physics, 1998
22 pages (published version)
openaire   +3 more sources

Positive solutions of higher order fractional integral boundary value problem with a parameter

open access: yesNonlinear Analysis, 2019
In this paper, we study a higher-order fractional differential equation with integral boundary conditions and a parameter. Under different conditions of nonlinearity, existence and nonexistence results for positive solutions are derived in terms of ...
Xinan Hao, Luyao Zhang, Lishan Liu
doaj   +1 more source

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