Results 61 to 70 of about 8,045,847 (325)

Tunneling through ultrasmall NIS junctions in terms of Andreev reflection: a nonlinear response approach

open access: yes, 1995
The Andreev current through an ultrasmall NIS junction is calculated in a systematic way by means of a nonlinear response approach basing on the elementary Hamiltonian of quasiparticle tunneling.
Andreev   +18 more
core   +1 more source

Revisiting the Base in Evidence-Based Policy

open access: yesPolitical Studies
Evidence-based policy (EBP) has become widely embraced for its commitment to greater uptake of scientific knowledge in policymaking. But what legitimizes EBP and in what respect are evidence-based policymaking practices better than other policymaking practices? In this article, we distinguish and refine three potential legitimizers of EBP.
Mike D Schneider   +12 more
openaire   +2 more sources

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Basing motoblock the main parametres of the potato digger [PDF]

open access: yesBIO Web of Conferences
This article will consider the main parameters of a potato digger designed to work with tillers in order to increase the efficiency of mechanized potato harvesting in small and medium-sized farms.
Masharibov Anvarbek   +4 more
doaj   +1 more source

A method for solving moving boundary problems in heat flow part ii: Using cubic polynomials [PDF]

open access: yes, 1972
A moving grid system has been used to get the solution of the moving boundary problem discussed earlier in Part I, but basing the necessary interpolations on ordinary cubic polynomials rather than splines.
Crank, J, Gupta, R
core  

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

On weak bases

open access: yesTopology and its Applications, 2005
\textit{F. Siwiec} [Pac. J. Math. 52, 233-245 (1974; Zbl 0285.54022)] introduced \(g\)-metrizable spaces as ones with a \(\sigma\)-locally finite weak base. This notation is motivated by the classical Nagata-Smirnov metrization theorem. \textit{D. Burke, R. Engelking} and \textit{D. Lutzer} [Proc. Am. Math. Soc.
openaire   +2 more sources

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

The consistency of estimator under fixed design regression model with NQD errors

open access: yes, 2013
In this article, basing on NQD samples, we investigate the fixed design nonparametric regression model, where the errors are pairwise NQD random errors, with fixed design points, and an unknown function.
Chen, Xiao-ping   +2 more
core   +1 more source

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