Results 61 to 70 of about 1,181,906 (288)
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 +2 more
wiley +1 more source
Behavior of the collective rotor in wobbling motion
, 2018 The behavior of the collective rotor in wobbling motion is investigated within the particle-rotor model for the nucleus $^{135}$Pr by transforming the wave functions from the $K$-representation to the $R$-representation.
Chen, Q. B. +3 more
core +1 more source
Collective and single cell behavior in epithelial contact inhibition [PDF]
, 2011 Control of cell proliferation is a fundamental aspect of tissue physiology central to morphogenesis, wound healing and cancer. Although many of the molecular genetic factors are now known, the system level regulation of growth is still poorly understood.
A. Puliafito +42 more
core +4 more sources
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
Generic Rotation in a Collective SD Nucleon-Pair Subspace
, 2002 Low-lying collective states involving many nucleons interacting by a random ensemble of two-body interactions (TBRE) are investigated in a collective SD-pair subspace, with the collective pairs defined dynamically from the two-nucleon system. It is found
A. Arima +41 more
core +1 more source
Collective Behavior with Endogenous Thresholds [PDF]
, 2006 We endogenize the threshold points in Granovetter’s threshold model of collective behavior (Granovetter 1978). We do this in a simple model that combines strategic complementarity and private information in a dynamic setup with endogenous order of moves.
Xue, Jun
core +2 more sources
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 +2 more
wiley +1 more source
Predator–prey power laws: trophic interactions give rise to scale-invariant ecosystems
New Journal of Physics, 2023 Scaling laws and power-law distributions are ubiquitous in ecological systems. However, it is not clear what factors give rise to such universal regularities.
Mohammad Salahshour
doaj +1 more source
Critical dynamics of an interacting magnetic nanoparticle system
, 2001 Effects of dipole-dipole interactions on the magnetic relaxation have been investigated for three Fe-C nanoparticle samples with volume concentrations of 0.06, 5 and 17 vol%. While both the 5 and 17 vol% samples exhibit collective behavior due to dipolar
Hansen, M. F. +3 more
core +1 more source
Heterogeneity Induced Order in Globally Coupled Chaotic Systems [PDF]
, 1996 Collective behavior is studied in globally coupled maps with distributed nonlinearity. It is shown that the heterogeneity enhances regularity in the collective dynamics. Low-dimensional quasiperiodic motion is often found for the mean-field, even if each
Ikeda K. +6 more
core +2 more sources