Results 51 to 60 of about 638,045 (294)
Multiscale approach to equilibrating model polymer melts [PDF]
, 2016 We present an effective and simple multiscale method for equilibrating Kremer Grest model polymer melts of varying stiffness. In our approach, we progressively equilibrate the melt structure above the tube scale, inside the tube and finally at the ...
Everaers, Ralf +4 more
core +2 more sources
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
Locked and Unlocked Polygonal Chains in 3D [PDF]
, 1998 In this paper, we study movements of simple polygonal chains in 3D. We say that an open, simple polygonal chain can be straightened if it can be continuously reconfigured to a straight sequence of segments in such a manner that both the length of each ...
Biedl, T. +10 more
core +8 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
Composition of human serum sphingomyelins
Journal of Lipid Research, 1970 Serum sphingomyelins were analyzed by argentation chromatography of the corresponding ceramide diacetates. Six subfractions were obtained. Three of them contained 4-sphingenines in combination with saturated, trans-, or cis-monoenoic fatty acids; the ...
E.L. Hirvisalo, O. Renkonen
doaj +1 more source
Metachronal waves in a chain of rowers with hydrodynamic interactions [PDF]
, 2010 Filaments on the surface of a microorganism such as Paramecium or Ophalina beat highly synchronized and form so-called metachronal waves that travel along the surfaces.
Stark, Holger, Wollin, Christopher
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
Effect of Branched and Straight Chained Alcohols on Performance of Crude oil Demulsifiers
Journal of Applied Sciences and Environmental Management, 2019 Unwanted crude oil emulsions occur in many stages of oil production, transportation, and processing. The huge cost resulting from corrosion of transport system and production facilities, because of the presence of water is a major challenge to the oil ...
T. Odisu +3 more
doaj +1 more source
Role of Internal Motions and Molecular Geometry on the NMR Relaxation of Hydrocarbons
, 2018 The role of internal motions and molecular geometry on $^1$H NMR relaxation times $T_{1,2}$ in hydrocarbons is investigated using MD (molecular dynamics) simulations of the autocorrelation functions for in{\it tra}molecular $G_R(t)$ and in{\it ter ...
Asthagiri, Dilip +5 more
core +1 more source
Dual selection enhances the signaling specificity of a variant of the quorum-sensing transcriptional activator LuxR [PDF]
, 2006 The transcription factor LuxR activates gene expression in response to binding the signaling molecule 3-oxo-hexanoyl-homoserine lactone (3OC6HSL), an acyl-HSL with a carbonyl substituent at the third carbon of the acyl chain.
Arnold, Frances H. +2 more
core +2 more sources