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pro vyhledávání: '"Roy, Ushasi"'
Biological systems are majorly dependent on their property of bistability in order to exhibit nongenetic heterogeneity in terms of cellular morphology and physiology. Spatial patterns of phenotypically heterogeneous cells, arising due to underlying b
Externí odkaz:
http://arxiv.org/abs/2210.06099
Feed-forward dynamics, which is well-known to have several important implications in nonlinear dynamical systems, frequently occurs in gene expression motifs, and has been well explored experimentally and mathematically. However, dependency of the co
Externí odkaz:
http://arxiv.org/abs/2209.13886
Autor:
Pujar, Aditi Ajith, Barua, Arnab, Dey, Partha Sarathi, Singh, Divyoj, Roy, Ushasi, Jolly, Mohit Kumar, Hatzikirou, Haralampos
Publikováno v:
In iScience 20 September 2024 27(9)
Multicellular collective migration is a ubiquitous strategy of cells to translocate spatially in diverse tissue environments to accomplish a wide variety of biological phenomena, viz. embryonic development, wound healing, and tumor progression. Diver
Externí odkaz:
http://arxiv.org/abs/2201.07283
Publikováno v:
Phys. Rev. Lett. 127, 098102 (2021)
Temperature sensing is a ubiquitous cell behavior, but the fundamental limits to the precision of temperature sensing are poorly understood. Unlike in chemical concentration sensing, the precision of temperature sensing is not limited by extrinsic fl
Externí odkaz:
http://arxiv.org/abs/2012.02918
Autor:
Roy, Ushasi, Mugler, Andrew
Publikováno v:
Phys. Rev. E 103, 032410 (2021)
Collections of cells exhibit coherent migration during morphogenesis, cancer metastasis, and wound healing. In many cases, bigger clusters split, smaller sub-clusters collide and reassemble, and gaps continually emerge. The connections between cell-l
Externí odkaz:
http://arxiv.org/abs/2007.04550
Publikováno v:
In Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena February 2023 167
Bacteria such as Escherichia coli move about in a series of runs and tumbles: while a run state (straight motion) entails all the flagellar motors spinning in counterclockwise mode, a tumble is caused by a shift in the state of one or more motors to
Externí odkaz:
http://arxiv.org/abs/1801.03721
Autor:
Roy, Ushasi, Gopalakrishnan, Manoj
A stochastic version of the Barkai-Leibler model of chemotaxis receptors in {\it E. coli} is studied here to elucidate the effects of intrinsic network noise in their conformational dynamics. It was originally proposed to explain the robust and near-
Externí odkaz:
http://arxiv.org/abs/1703.10958
Underlying mechanisms for deformation and fracture behaviour of some BCC and FCC high entropy alloys
Publikováno v:
In Theoretical and Applied Fracture Mechanics June 2021 113