Zobrazeno 1 - 10
of 530
pro vyhledávání: '"Grekas, A."'
While much attention of neural network methods is devoted to high-dimensional PDE problems, in this work we consider methods designed to work for elliptic problems on domains $\Omega \subset \mathbb{R} ^d, $ $d=1,2,3$ in association with more standar
Externí odkaz:
http://arxiv.org/abs/2409.08362
In the context of Discontinuous Galerkin methods, we study approximations of nonlinear variational problems associated with convex energies. We propose element-wise nonconforming finite element methods to discretize the continuous minimisation proble
Externí odkaz:
http://arxiv.org/abs/2308.12891
Potassium sodium niobate is considered a prominent material system as a substitute for toxic lead-containing ferroelectric materials. It exhibits first-order phase transformations and ferroelectricity with potential applications ranging from energy c
Externí odkaz:
http://arxiv.org/abs/2302.01797
Autor:
Kalaitzidou, Chrysovalantou, Grekas, Georgios, Zilian, Andreas, Makridakis, Charalambos, Rosakis, Phoebus
Through modelling and simulations we show that material instabilities play a dominant role in the mechanical behavior of the fibrous collagen Extracellular Matrix (ECM), as observed when the ECM is deformed by contractile biological cells. We compare
Externí odkaz:
http://arxiv.org/abs/2212.01213
Autor:
Chrysovalantou Kalaitzidou, Georgios Grekas, Andreas Zilian, Charalambos Makridakis, Phoebus Rosakis
Publikováno v:
PLoS Computational Biology, Vol 20, Iss 7, p e1012238 (2024)
We present a new model and extensive computations that explain the dramatic remodelling undergone by a fibrous collagen extracellular matrix (ECM), when subjected to contractile mechanical forces from embedded cells or cell clusters. This remodelling
Externí odkaz:
https://doaj.org/article/41e458ca175947e9aca6fe76483e6eef
Autor:
Kalaitzidou, Chrysovalantou1 (AUTHOR) kalaitzidou.chr@gmail.com, Grekas, Georgios2,3 (AUTHOR), Zilian, Andreas1 (AUTHOR), Makridakis, Charalambos3,4,5 (AUTHOR), Rosakis, Phoebus3,4 (AUTHOR) kalaitzidou.chr@gmail.com
Publikováno v:
PLoS Computational Biology. 7/1/2024, Vol. 20 Issue 7, p1-30. 30p.
We consider a model of energy minimization arising in the study of the mechanical behavior caused by cell contraction within a fibrous biological medium. The macroscopic model is based on the theory of non rank-one convex nonlinear elasticity for pha
Externí odkaz:
http://arxiv.org/abs/1907.01382
Autor:
Grekas, Georgios, Proestaki, Maria, Rosakis, Phoebus, Notbohm, Jacob, Makridakis, Charalambos, Ravichandran, Guruswami
Publikováno v:
Journal of the Royal Society Interface 18: 20200823 2021
Through mechanical forces, biological cells remodel the surrounding collagen network, generating striking deformation patterns. Tethers-tracts of high densification and fiber alignment-form between cells, thinner bands emanate from cell clusters. Whi
Externí odkaz:
http://arxiv.org/abs/1905.11246
Autor:
Skoumas, Y., Katinioti, N., Papadimitriou, L., Masoura, C., Vellas, S., Lentzas, Y., Kambaxis, M., Paliou, K., Metaxa, V., Skourlis, N., Papanikolaou, C., Kalogeropoulou, A., Pitaraki, E., Laskaris, A., Hatzigeorgiou, M., Grekas, A., Kokkou, E., Vassiliadou, C., Dedousis, G., Toutouza-Giotsa, M., Tselika, C., Poulopouloou, S., Toutouza, M., Kouvari, Matina, Panagiotakos, Demosthenes B., Chrysohoou, Christina, Georgousopoulou, Ekavi N., Yannakoulia, Mary, Tousoulis, Dimitrios, Pitsavos, Christos
Publikováno v:
In Nutrition, Metabolism and Cardiovascular Diseases 27 November 2020 30(12):2194-2206
Autor:
H. Al-Samkari, R. F. Grace, A. Glenthøj, O. Andres, W. Barcellini, F. Galactéros, K. H. M. Kuo, D. M. Layton, M. Morado Arias, V. Viprakasit, Y. Dong, F. Tai, L. Grekas, K. Khoja, S. Gheuens, B. McGee, J. B. Porter, E. J. van Beers
Publikováno v:
HemaSphere, Vol 6, Pp 1425-1426 (2022)
Externí odkaz:
https://doaj.org/article/ee64e4d54d7042caad5c1cd760412896