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pro vyhledávání: '"Graf, Isabella R."'
Autor:
Momi, Asheesh S., Abbott, Michael C., Rubinfien, Julian, Machta, Benjamin B., Graf, Isabella R.
Sound produces surface waves along the cochlea's basilar membrane. To achieve the ear's astonishing frequency resolution and sensitivity to faint sounds, dissipation in the cochlea must be canceled via active processes in hair cells, effectively brin
Externí odkaz:
http://arxiv.org/abs/2407.14496
Living systems continually respond to signals from the surrounding environment. Survival requires that their responses adapt quickly and robustly to the changes in the environment. One particularly challenging example is olfactory navigation in turbu
Externí odkaz:
http://arxiv.org/abs/2405.20135
E. coli use a regular lattice of receptors and attached kinases to detect and amplify faint chemical signals. Kinase output is characterized by precise adaptation to a wide range of background ligand levels and large gain in response to small relativ
Externí odkaz:
http://arxiv.org/abs/2405.18331
Autor:
Graf, Isabella R., Machta, Benjamin B.
In various biological systems information from many noisy molecular receptors must be integrated into a collective response. A striking example is the thermal imaging organ of pit vipers. Single nerve fibers in the organ reliably respond to mK temper
Externí odkaz:
http://arxiv.org/abs/2305.05647
Autor:
Graf, Isabella R., Machta, Benjamin B.
Publikováno v:
Physical Review Research, 4, 033144 (2022)
Theoretical work has shed light on the phase behavior of idealized mixtures of many components with random interactions. But typical mixtures interact through particular physical features, leading to a structured, non-random interaction matrix of low
Externí odkaz:
http://arxiv.org/abs/2110.11332
A guiding principle in self-assembly is that, for high production yield, nucleation of structures must be significantly slower than their growth. However, details of the mechanism that impedes nucleation are broadly considered irrelevant. Here, we an
Externí odkaz:
http://arxiv.org/abs/1905.09912
Publikováno v:
Phys. Rev. E 98, 012410 (2018)
The totally asymmetric simple exclusion process (TASEP) is a paradigmatic stochastic model for non-equilibrium physics, and has been successfully applied to describe active transport of molecular motors along cytoskeletal filaments. Building on this
Externí odkaz:
http://arxiv.org/abs/1803.03942
Publikováno v:
PloS Comp. Biol. 13 (9), e1005747 (2017)
A deterministic population dynamics model involving birth and death for a two-species system, comprising a wild-type and more resistant species competing via logistic growth, is subjected to two distinct stress environments designed to mimic those th
Externí odkaz:
http://arxiv.org/abs/1802.02408
Autor:
Graf, Isabella R., Frey, Erwin
Publikováno v:
Phys. Rev. Lett. 118, 128101 (2017)
Transport of molecular motors along protein filaments in a half-closed geometry is a common feature of biologically relevant processes in cellular protrusions. Using a lattice gas model we study how the interplay between active and diffusive transpor
Externí odkaz:
http://arxiv.org/abs/1703.02536
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