Výsledky vyhledávání - "Zidovska, Alexandra"

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Spatio-Temporal Dynamics of Nucleo-Cytoplasmic Transport

Autor: Rautu, S. Alex, Zidovska, Alexandra, Shelley, Michael J.

Nucleocytoplasmic transport is essential for cellular function, presenting a canonical example of rapid molecular sorting inside cells. It consists of a coordinated interplay between import/export of molecules in/out the cell nucleus. Here, we invest

Externí odkaz: http://arxiv.org/abs/2404.06688

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Conformations, correlations, and instabilities of a flexible fiber in an active fluid

Autor: Weady, Scott, Stein, David B., Zidovska, Alexandra, Shelley, Michael J.

Fluid-structure interactions between active and passive components are important for many biological systems to function. A particular example is chromatin in the cell nucleus, where ATP-powered processes drive coherent motions of the chromatin fiber

Externí odkaz: http://arxiv.org/abs/2309.12225

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Model chromatin flows: numerical analysis of linear and nonlinear hydrodynamics inside a sphere

Autor: Eshghi, Iraj, Zidovska, Alexandra, Grosberg, Alexander Y.

We solve a hydrodynamic model of active chromatin dynamics, within a confined geometry simulating the cell nucleus. Using both analytical and numerical methods, we describe the behavior of the chromatin polymer driven by the activity of motors having

Externí odkaz: http://arxiv.org/abs/2305.02411

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Anomalous convective flows carve pinnacles and scallops in melting ice

Autor: Weady, Scott, Tong, Joshua, Zidovska, Alexandra, Ristroph, Leif

We report on the shape dynamics of ice suspended in cold fresh water and subject to the natural convective flows generated during melting. Experiments reveal shape motifs for increasing far-field temperature: Sharp pinnacles directed downward at low

Externí odkaz: http://arxiv.org/abs/2111.09937

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