582 citations · 9k across the 142 of their papers we have counts for
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Dislocation mutual interactions mediated by mobile impurities and the conditions for plastic instabilities
Fabio Leoni, Stefano Zapperi
Matallic alloys, such as Al or Cu, or mild steel, display plastic instabilities in a well defined range of temperatures and deformation rates, a phenomenon known as the Portevin-Le…
Growth and form of melanoma cell colonies
Massimiliano Maria Baraldi, Alexander A Alemi, James P Sethna +3
We study the statistical properties of melanoma cell colonies grown in vitro by analyzing the results of crystal violet assays at different concentrations of initial plated cells a…
Do cancer cells undergo phenotypic switching? The case for imperfect cancer stem cell markers
C. A. M. La Porta, S Zapperi
The identification of cancer stem cells in vivo and in vitro relies on specific surface markers that should allow to sort cancer cells in phenotypically distinct subpopulations. Ex…
Senescent Cells in Growing Tumors: Population Dynamics and Cancer Stem Cells
Caterina A. M. La Porta, Stefano Zapperi, James P. Sethna
Tumors are defined by their intense proliferation, but sometimes cancer cells turn senescent and stop replicating. In the stochastic cancer model in which all cells are tumorigenic…
Damage accumulation in quasi-brittle fracture
Claudio Manzato, Mikko J. Alava, Stefano Zapperi
The strength of quasi-brittle materials depends on the ensemble of defects inside the sample and on the way damage accumulates before failure. Using large scale numerical simulatio…
Avalanches in 2D Dislocation Systems: Plastic Yielding is not Depinning
Péter Dusán Ispánovity, Lasse Laurson, Michael Zaiser +3
We study the properties of strain bursts (dislocation avalanches) occurring in two-dimensional discrete dislocation dynamics models under quasistatic stress-controlled loading. Con…