Results 71 to 80 of about 1,605,869 (375)

Microfluidic electro‐viscoelastic manipulation of extracellular vesicles

open access: yesFEBS Open Bio, EarlyView.
The electro‐viscoelastic manipulation as a potential method for separation of particles based on size. The particles introduced as a sheath flow migrate to the channel center under the influence of simultaneously applied electric field and pressure driven flow.
Seyedamirhosein Abdorahimzadeh   +7 more
wiley   +1 more source

The Existence of Planar Hypotraceable Oriented Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2017
A digraph is \emph{traceable} if it has a path that visits every vertex. A digraph $D$ is \emph{hypotraceable} if $D$ is not traceable but $D-v$ is traceable for every vertex $v\in V(D)$.
Susan van Aardt   +2 more
doaj   +1 more source

The Renormalization of Non-Commutative Field Theories in the Limit of Large Non-Commutativity

open access: yes, 2003
We show that renormalized non-commutative scalar field theories do not reduce to their planar sector in the limit of large non-commutativity. This follows from the fact that the RG equation of the Wilson-Polchinski type which describes the genus zero ...
Aref'eva   +11 more
core   +3 more sources

Establishment and optimization of the two‐step induction system for generating primordial germ cell‐like cells from chicken embryonic stem cells

open access: yesFEBS Open Bio, EarlyView.
This study optimizes a two‐step induction system to generate PGCLCs from chicken ESCs. The induced cells express germline markers and migrate to gonads in ovo, offering a novel approach for avian genetic resource conservation. Primordial germ cells (PGCs) are the progenitor cells of sperm and eggs.
Zeyu Li   +10 more
wiley   +1 more source

Method of calculating the parameters of ultrasonic super-high-frequency transducers

open access: yesТехнологія та конструювання в електронній апаратурі, 2013
The paper presents a method of calculating the parameters of half-wave package ultrasonic piezoelectric emitters and step waveguides, which has an error no more than 6—8%.
V. L. Lanin, I. B. Petukhov
doaj  

Structural and functional analysis of Bacillus sarcosine oxidase and its activity toward cyclic imino acids

open access: yesFEBS Open Bio, EarlyView.
Sarcosine oxidase from Bacillus sp. (SoxB) recognizes l‐proline (l‐Pro), d‐proline (d‐Pro), and l‐thioproline (l‐Tpr) as minor substrates. In this study, we measured their absorption spectra, determined the crystal structures of their enzyme complexes, and performed site‐directed mutagenesis of key residues.
Yuqi Zhang   +5 more
wiley   +1 more source

A note on comaximal ideal graph of commutative rings

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Let be a commutative ring with identity. The comaximal ideal graph of is a simple graph with its vertices are the proper ideals of R which are not contained in the Jacobson radical of , and two vertices and are adjacent if and only if .
S. Kavitha, R. Kala
doaj   +1 more source

Refolding planar polygons [PDF]

open access: yesProceedings of the twenty-second annual symposium on Computational geometry, 2004
This paper describes an algorithm for generating a guaranteed intersection-free interpolation sequence between any pair of compatible polygons. Our algorithm builds on prior results from linkage unfolding, and if desired it can ensure that every edge length changes monotonically over the course of the interpolation sequence. The computational machinery
Iben, Hayley N.   +2 more
openaire   +9 more sources

The Associations Between Chronic Active Lesions and White Matter Disease: A 7 Tesla Imaging Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background The relationship between paramagnetic rim lesions (PRLs) and surrounding normally appearing white matter (NAWM) disease, potentially contributory to the associations seen between PRLs and clinical impairment, is underexplored. Objectives To assess whether PRLs correlate with a greater degree of NAWM injury in early MS.
Ellie McCluey   +17 more
wiley   +1 more source

Technological Indicators of the Operation of Cutting Blanks from Sheet Material with a Wire Tool with a Modified Surface by Electroerosion Method

open access: yesМеханика машин, механизмов и материалов, 2020
The article is devoted to the experimental evaluation of the effect of EDM modifying the original smooth surface of the wire tool on its technological parameters when cutting different sheet materials, in particular, on cutting ability, surface quality ...
Mikhail G. Kiselev   +4 more
doaj  

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