Results 31 to 40 of about 10,366 (238)

Modulational instability in nonlocal nonlinear Kerr media [PDF]

, 2001
We study modulational instability (MI) of plane waves in nonlocal nonlinear Kerr media. For a focusing nonlinearity we show that, although the nonlocality tends to suppress MI, it can never remove it completely, irrespectively of the particular profile ...
A. Hasegawa, A. Nakamura, A. Parola, A. Snyder, A.G. Litvak, A.G. Litvak, D. Suter, F. Dalfovo, H.L. Pecseli, J.P. Gordon, Jens Juul Rasmussen, John Wyller, K. Goral, L.A. Ostrovskii, M. Horowitz, M. Porkolab, M. Soljacic, M.J. Potasek, Ole Bang, P.D. Miller, S. Akhmanov, T.A. Davydova, T.B. Benjamin, V.I. Bespalov, V.I. Karpman, V.M. Perez-Garcia, W. Krolikowski, Wieslaw Krolikowski, X. Wang, Yu.S. Kivshar, Yu.S. Kivshar   +30 more
core   +2 more sources

Self-similar solutions and collective coordinate methods for Nonlinear Schrodinger Equations

, 2003
In this paper we study the phase of self-similar solutions to general Nonlinear Schr\"odinger equations. From this analysis we gain insight on the dynamics of nontrivial solutions and a deeper understanding of the way collective coordinate methods work ...
Abdullaev, Abdullaev, Anderson, Berge, Berge, Cuccagna, Davis, Fibich, Gammal, Garcı́a-Ripoll, Garcı́a-Ripoll, Ghosh, Kaplan, Malomed, Oh, Pérez-Garcı́a, Sánchez, Tomio, Towers, Tsai, Vı́ctor M. Pérez-Garcı́a   +20 more
core   +2 more sources

Conformational Dynamics of Intrinsically Disordered Proteins Regulate Biomolecular Condensate Chemistry [PDF]

, 2022
Motions in biomolecules are critical for biochemical reactions. In cells, many biochemical reactions are executed inside of biomolecular condensates formed by ultradynamic intrinsically disordered proteins.
Abyzov, A., Blackledge, M., Zweckstetter, M.   +2 more
core   +2 more sources

Emergent microenvironments of nucleoli

Nucleus
In higher eukaryotes, the nucleolus harbors at least three sub-phases that facilitate multiple functionalities including ribosome biogenesis. The three prominent coexisting sub-phases are the fibrillar center (FC), the dense fibrillar component (DFC ...
Matthew R. King, Kiersten M. Ruff, Rohit V. Pappu   +2 more
doaj   +1 more source

How Arsenic, an Inorganic Pollutant, is Involved in the Physiology of Biomolecular Condensates in the Cell

Frontiers in Environmental Chemistry, 2022
The existence of membrane-less organelles in the cells has been known for a relatively long time. Of the membrane-less organelles, stress granules, processing bodies, and PML-NBs have been intensively investigated in relation to arsenic.
Osamu Udagawa, Seishiro Hirano
doaj   +1 more source

Twist of generalized skyrmions and spin vortices in a polariton superfluid [PDF]

, 2016
We study the spin vortices and skyrmions coherently imprinted into an exciton-polariton condensate on a planar semiconductor microcavity. We demonstrate that the presence of a polarization anisotropy can induce a complex dynamics of these structured ...
Ballarini, D, Bramati, A, Dagvadorj, G, De Giorgi, M, Dominici, L, Donati, S, Gigli, G, Rubo, YG, Sanvitto, D, Szymańska, MH   +9 more
core   +1 more source

Liquid–liquid phase separation within fibrillar networks

Nature Communications, 2023
Complex fibrillar networks mediate liquid–liquid phase separation of biomolecular condensates within the cell. Mechanical interactions between these condensates and the surrounding networks are increasingly implicated in the physiology of the condensates
Jason X. Liu, Mikko P. Haataja, Andrej Košmrlj, Sujit S. Datta, Craig B. Arnold, Rodney D. Priestley   +5 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

RNA-mediated demixing transition of low-density condensates

Nature Communications, 2023
Biomolecular condensates play a key role in organizing cellular reactions by concentrating a specific set of biomolecules. However, whether condensate formation is accompanied by an increase in the total mass concentration within condensates or by the ...
Taehyun Kim, Jaeyoon Yoo, Sungho Do, Dong Soo Hwang, YongKeun Park, Yongdae Shin   +5 more
doaj   +1 more source

Quantum walk of a Bose-Einstein condensate in the Brillouin zone

, 2017
We propose a realistic scheme to implement discrete-time quantum walks in the Brillouin zone (i.e., in quasimomentum space) with a spinor Bose-Einstein condensate. Relying on a static optical lattice to suppress tunneling in real space, the condensate is
Alberti, Andrea, Wimberger, Sandro
core   +1 more source