Results 71 to 80 of about 5,328,774 (332)

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

Spin dynamics in tunneling decay of a metastable state

, 2012
We analyze spin dynamics in the tunneling decay of a metastable localized state in the presence of spin-orbit coupling. We find that the spin polarization at short time scales is affected by the initial state while at long time scales both the ...
Ban, Yue, Sherman, E. Ya.
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Crossover from Spin-Density-Wave to Neel-like Ground state

, 1994
The characterization and evolution of a Spin Density Wave into the Quantum Neel ground state is considered in the context of a weak coupling theory of the half-filled Hubbard model.
A. A. Ovchinnikov, A. I. Larkin, A. J. Millis, A. J. Millis, A. Sokol, A. V. Chubokov, A. V. Chubukov, A. V. Chubukov, A. V. Chubukov, B. D. Josephson, B. I. Halperin, B. I. Shraiman, B. Keimer, D. C. Mattis, E. Lieb, F. D. M. Haldane, F. Woynarovich, H. Frahm, H. Frahm, H. J. Schulz, H. Shiba, H. Shiba, H. Shiba, J. Bonc✓a, J. Ferrer, J. Igarashi, J. R. Schrieffer, Jaime Ferrer, M. Ogata, M. Randeria, M. Randeria, N. D. Mermin, P. Fulde, P. Nozieres, P. W. Anderson, R. E. Walstedt, S. Chakravarty, V. J. Emery   +37 more
core   +2 more sources

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Efficient Coupling between Dielectric-Loaded Plasmonic and Silicon Photonic Waveguides [PDF]

, 2010
The realization of practical on-chip plasmonic devices will require efficient coupling of light into and out of surface plasmon waveguides over short length scales.
Atwater, Harry A., Briggs, Ryan M., Burgos, Stanley P., Feigenbaum, Eyal, Grandidier, Jonathan   +4 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

Unraveling the ultra-broadband beam splitter based on parallel coupled waveguides

JPhys Photonics
An ultra-broadband beam splitter is theoretically realized using a directional parallel-cascaded coupled-waveguide structure, which is designed and investigated with the effective medium method and finite-difference time-domain method. The 1 dB bandwidth
Sheng Hsiung Chang
doaj   +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

Study of Baffle Boundary and System Parameters on Liquid-Solid Coupling Vibration of Rectangular Liquid-Storage Structure

Shock and Vibration, 2016
In order to study the vibration problem of liquid-solid coupling of rectangular liquid-storage structure with horizontal elastic baffle, ignoring the influence of surface gravity wave, two different velocity potential functions corresponding to the ...
Wei Jing, Xuansheng Cheng, Wei Shi, Jin Fan, Huan Feng   +4 more
doaj   +1 more source