Results 11 to 20 of about 1,035,102 (229)

Conceptual design of a 1MW 175MHz CW magnetron. [PDF]

open access: yes, 2009
Recent advances in the control of CW magnetrons have raised the possibility of using these devices as the RF power sources for particle accelerators. This paper describes the conceptual design of a 1MW, 175MHz, CW magnetron and compares its performance ...
Carter, Richard G.
core   +5 more sources

Cellular structures in Topology [PDF]

open access: yes, 1990
This book describes the construction and the properties of CW-complexes. These spaces are important because firstly they are the correct framework for homotopy theory, and secondly most spaces that arise in pure mathematics are of this type.
Renzo Piccinini   +4 more
core   +1 more source

The destructive effect of botulinum neurotoxins on the SNARE protein: SNAP-25 and synaptic membrane fusion [PDF]

open access: yesPeerJ, 2015
Synaptic exocytosis requires the assembly of syntaxin 1A and SNAP-25 on the plasma membrane and synaptobrevin 2 (VAMP2) on the vesicular membrane to bridge the two opposite membranes.
Bin Lu
doaj   +2 more sources

Fast repetition rate fs pulsed lasers for advanced PLIM microscopy [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2019
Simultaneous metabolic and oxygen imaging is promising to follow up therapy response, disease development and to determine prognostic factors. FLIM of metabolic coenzymes is now widely accepted to be the most reliable method to determine cellular ...
Sviatlana Kalinina   +3 more
doaj   +1 more source

An algorithm for an 𝓁2-homological test for the planarity of a graph

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Given a finite simple graph Γ, one is able to define the presentation of an associate Coxeter group and construct a CW-complex on which the associated Coxeter group acts.
Elizabeth Donovan, Timothy Schroeder
doaj   +1 more source

Modal Logic Axioms Valid in Quotient Spaces of Finite CW-Complexes and Other Families of Topological Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2016
In this paper we consider the topological interpretations of L□, the classical logic extended by a “box” operator □ interpreted as interior. We present extensions of S4 that are sound over some families of topological spaces, including particular point ...
Maria Nogin, Bing Xu
doaj   +1 more source

Hochschild cohomology of Sullivan algebras and mapping spaces

open access: yesArab Journal of Mathematical Sciences, 2019
Let f:X→Y be a map between simply connected spaces having the homotopy of finite type CW-complexes, where H∗(Y,Q)is finite dimensional and ϕ:(∧V,d)→(B,d)a Sullivan model of f. We consider (B,d)as a module over ∧V via the mapping ϕ.
J.-B. Gatsinzi
doaj   +1 more source

Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes

open access: yesElementa: Science of the Anthropocene, 2017
Antarctic pack ice is inhabited by a diverse and active microbial community reliant on nutrients for growth. Seeking patterns and overlooked processes, we performed a large-scale compilation of macro-nutrient data (hereafter termed nutrients) in ...
François Fripiat   +22 more
doaj   +1 more source

Stoichiometry and Turnover of the Bacterial Flagellar Switch Protein FliN

open access: yesmBio, 2014
Some proteins in biological complexes exchange with pools of free proteins while the complex is functioning. Evidence is emerging that protein exchange can be part of an adaptive mechanism.
Nicolas J. Delalez   +2 more
doaj   +1 more source

Switching and Torque Generation in Swarming E. coli

open access: yesFrontiers in Microbiology, 2018
Escherichia coli swarm on semi-solid surfaces with the aid of flagella. It has been hypothesized that swarmer cells overcome the increased viscous drag near surfaces by developing higher flagellar thrust and by promoting surface wetness with the aid of a
Katie M. Ford   +4 more
doaj   +1 more source

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