Results 121 to 130 of about 7,300,790 (323)

An emotion classification method from electroencephalogram based on 1/f fluctuation theory

Measurement + Control, 2020
Electroencephalogram data are easily affected by artifacts, and a drift may occur during the signal acquisition process. At present, most research focuses on the automatic detection and elimination of artifacts in electrooculograms, electromyograms and ...
Hao Li, Xia Mao, Lijiang Chen
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Theory of fluctuations in a two-band superconductor

, 2004
A theory of fluctuations in two-band superconductor MgB$_{2}$ is developed. Since the standard Ginzburg-Landau (GL) approach fails in description of its properties, we generalize it basing on the microscopic theory of a two-band superconductor ...
A. A. Abrikosov, A. A. Abrikosov, A. A. Abrikosov, A. A. Varlamov, A. E. Koshelev, A. Larkin, G. M. Eliashberg, G. M. Eliashberg, K. Maki, L. P. Gor’kov, L. P. Gor’kov, L. P. Gor’kov, L. P. Gor’kov, V. A. Moskalenko, V. L. Ginzburg, V. M. Vinokur, Yu. Eltsev   +16 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Speed limits to fluctuation dynamics

Communications Physics
Fluctuation dynamics of an experimentally measured observable offer a primary signal for nonequilibrium systems, along with dynamics of the mean. While universal speed limits for the mean have actively been studied recently, constraints for the speed of ...
Ryusuke Hamazaki
doaj   +1 more source

Fluctuations of Current in Non-Stationary Diffusive Lattice Gases

, 2012
We employ the macroscopic fluctuation theory to study fluctuations of integrated current in one-dimensional lattice gases with a step-like initial density profile.
B. Schmittmann, Baruch Meerson, C. Kipnis, G. M. Schütz, H. Spohn, L. D. Landau, M. I. Freidlin, M. Prähofer, P. L. Krapivsky, P. L. Krapivsky, T. M. Liggett   +10 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

First passage of a Markov additive process and generalized Jordan chains [PDF]

In this paper we consider the first passage process of a spectrally negative Markov additive process (MAP). The law of this process is uniquely characterized by a certain matrix function, which plays a crucial role in fluctuation theory.
Bernardo D'Auria, Jevgenijs Ivanovs, Michel Mandjes, Offer Kella,   +3 more
core  

Onsager-Machlup theory for nonequilibrium steady states and fluctuation theorems

, 2006
A generalization of the Onsager-Machlup theory from equilibrium to nonequilibrium steady states and its connection with recent fluctuation theorems are discussed for a dragged particle restricted by a harmonic potential in a heat reservoir.
A. Einstein, A. Imparato, D. J. Evans, D. J. Evans, D. J. Evans, E. G. D. Cohen, E. G. D. Cohen, F. Bonetto, G. E. Crooks, G. E. Crooks, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. M. Wang, H. B. Callen, H. B. G. Casimir, H. Hasegawa, H. Hasegawa, H. Nyquist, H. Risken, J. B. Johnson, J. C. Reid, J. Kurchan, J. L. Lebowitz, K. Feitosa, K. Kawasaki, K. L. C. Hunt, K. Sekimoto, K. Yasue, L. Bertini, L. Bertini, L. Bertini, L. D. Landau, L. D. Landau, L. Onsager, L. Onsager, L. Onsager, L. Tisza, M. Baiesi, M. S. Green, N. G. Kampen van, N. Garnier, N. Hashitsume, O. Narayan, R. Kubo, R. P. Feynman, R. Zon van, R. Zon van, R. Zon van, R. Zon van, S. Ciliberto, S. Ciliberto, S. Machlup, S. Schuler, T. Gilbert, T. Taniguchi, Tooru Taniguchi, V. Y. Chernyak   +60 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source