Results 51 to 60 of about 768,807 (267)

Basis for high order divergence-free finite element spaces

Results in Applied Mathematics
A method classically used in the lower polynomial degree for the construction of a finite element basis of the space of divergence-free functions is here extended to any polynomial degree for a bounded domain without topological restrictions.
A. Alonso Rodríguez, J. Camaño, E. De Los Santos, F. Rapetti   +3 more
doaj   +1 more source

Ordered sums of group elements

Journal of Combinatorial Theory, Series A, 1978
AbstractThe following theorem is proved. If a1, … ak are distinct elements of a group, written additively, though not necessarily Abelian, and the sums ai1 + … + aim, 1 ⩽ i1 < … < im ⩽ k do not represent 0, then they represent at least 2k − 1 distinct elements, and this bound 2k − 1 is attained only when k ⩽ 3 or when the elements a1, …, ak generate a ...
openaire   +3 more sources

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Boolean elements in the Bruhat order

Combinatorial Theory
We show that $w\in W$ is boolean if and only if it avoids a set of Billey-Postnikov patterns, which we describe explicitly. Our proof is based on an analysis of inversion sets, and it is in large part type-uniform. We also introduce the notion of linear pattern avoidance, and show that boolean elements are characterized by avoiding just the $3$ linear ...
Gao, Yibo, Hänni, Kaarel
openaire   +3 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Stochastic higher order finite element elasto-plastic analysis of the necking phenomenon

ITM Web of Conferences, 2017
The principal goal of this work is to investigate an application of the stochastic perturbation technique of the 10th order in coupled thermo-elasto-plastic analysis of tension of the steel elastic bar exposed to fire with thermally dependent material ...
Strąkowski Michał, Kamiński Marcin
doaj   +1 more source

Low order nonconforming finite element method for time-dependent nonlinear Schrödinger equation

Boundary Value Problems, 2018
The main aim of this paper is to apply a low order nonconforming EQ1rot $\mathit{EQ}_{1}^{\mathrm{rot}}$ finite element to solve the nonlinear Schrödinger equation. Firstly, the superclose property in the broken H1 $H^{1}$-norm for a backward Euler fully-
Chao Xu, Jiaquan Zhou, Dongyang Shi, Houchao Zhang   +3 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Ubiquitous short-range order in multi-principal element alloys

Nature Communications
Recent research in multi-principal element alloys (MPEAs) has increasingly focused on the role of short-range order (SRO) on material performance. However, the mechanisms of SRO formation and its precise control remain elusive, limiting the progress of ...
Ying Han, Hangman Chen, Yongwen Sun, Jian Liu, Shaolou Wei, Bijun Xie, Zhiyu Zhang, Yingxin Zhu, Meng Li, Judith Yang, Wen Chen, Penghui Cao, Yang Yang   +12 more
doaj   +1 more source