Results 21 to 30 of about 56,763 (249)

On the Complexity of Matrix Rank and Rigidity [PDF]

Theory of Computing Systems, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Meena Mahajan, Jayalal Sarma
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Tumor Suppressor DAPK1 Catalyzes Adhesion Assembly on Rigid but Anoikis on Soft Matrices

Frontiers in Cell and Developmental Biology, 2022
Cancer cells normally grow on soft surfaces due to impaired mechanosensing of the extracellular matrix rigidity. Upon restoration of proper mechanosensing, cancer cells undergo apoptosis on soft surfaces (anoikis) like most normal cells.
Ruifang Qin, Shay Melamed, Bo Yang, Mayur Saxena, Michael P. Sheetz, Haguy Wolfenson   +5 more
doaj   +1 more source

The Orbit Rigidity Matrix of a Symmetric Framework [PDF]

Discrete & Computational Geometry, 2010
41 pages, 12 ...
Bernd Schulze, Walter Whiteley
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Mechanics regulates fate decisions of human embryonic stem cells. [PDF]

PLoS ONE, 2012
Research on human embryonic stem cells (hESCs) has attracted much attention given their great potential for tissue regenerative therapy and fundamental developmental biology studies.
Yubing Sun, Luis G Villa-Diaz, Raymond H W Lam, Weiqiang Chen, Paul H Krebsbach, Jianping Fu   +5 more
doaj   +1 more source

Formation of Moments Influence Matrix in Frame Based on Graph of its Design Scheme [PDF]

MATEC Web of Conferences, 2021
A procedure is proposed for the automated construction of the bending moments influence matrix in the frame based on the graph of its discrete model. Forming the incidence matrix of the graph characterizing the topological structure of the design scheme ...
Monakhov V.А., Shein А.I.
doaj   +1 more source

SEISMIC ANALYSIS OF FRAMES WITH SEMI-RIGID CONNECTIONS IN ACCORDANCE WITH EC8

Facta Universitatis. Series: Architecture and Civil Engineering, 2020
Up to date research has pointed out that most of the structural connections of reinforced concrete (RC) frames, particularly precast ones, behave as semi-rigid.
Dragan Zlatkov, Slavko Zdravković, Biljana Mladenović, Marina Mijalković   +3 more
doaj   +1 more source

Matrix and tensor rigidity and L-approximation

Journal of Complexity, 2022
In this paper we apply methods originated in Complexity theory to some problems of Approximation. We notice that the construction of Alman and Williams that disproves the rigidity of Walsh-Hadamard matrices, provides good $\ell_p$-approximation for $p<2$.
openaire   +3 more sources

Matrix rigidity induces osteolytic gene expression of metastatic breast cancer cells. [PDF]

PLoS ONE, 2010
Nearly 70% of breast cancer patients with advanced disease will develop bone metastases. Once established in bone, tumor cells produce factors that cause changes in normal bone remodeling, such as parathyroid hormone-related protein (PTHrP).
Nazanin S Ruppender, Alyssa R Merkel, T John Martin, Gregory R Mundy, Julie A Sterling, Scott A Guelcher   +5 more
doaj   +1 more source

Altering adsorbed proteins or cellular gene expression in bone-metastatic cancer cells affects PTHrP and Gli2 without altering cell growth

Data in Brief, 2015
The contents of this data in brief are related to the article titled “Matrix Rigidity Regulates the Transition of Tumor Cells to a Bone-Destructive Phenotype through Integrin β3 and TGF-β Receptor Type II”.
Jonathan M. Page, Alyssa R. Merkel, Nazanin S. Ruppender, Ruijing Guo, Ushashi C. Dadwal, Shellese Cannonier, Sandip Basu, Scott A. Guelcher, Julie A. Sterling   +8 more
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Sharp rigidity estimates for incompatible fields as a consequence of the Bourgain Brezis div-curl result

Comptes Rendus. Mathématique, 2021
In this note we show that a sharp rigidity estimate and a sharp Korn’s inequality for matrix-valued fields whose incompatibility is a bounded measure can be obtained as a consequence of a Hodge decomposition with critical integrability due to Bourgain ...
Conti, Sergio, Garroni, Adriana
doaj   +1 more source