Results 51 to 60 of about 386,403 (270)

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Tapping to Carter: A Response to Fischinger and Dyck-Hemming

open access: yesEmpirical Musicology Review, 2018
This short essay responds to issues raised by Fischinger and Dyck-Hemming in their commentary on this author's article "Tapping to Carter: Mensural Determinacy in Complex Rhythmic Sequences." Borrowing Christopher Hasty's concept of mensural determinacy,
Ève Poudrier
doaj   +1 more source

Knörrer periodicity and Bott periodicity

open access: yesDocumenta Mathematica, 2016
The goal of this article is to explain a precise sense in which Knörrer periodicity in commutative algebra and Bott periodicity in topological K -theory are compatible phenomena.
openaire   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Generative Models for Periodicity Detection in Noisy Signals

open access: yesClocks & Sleep
We present the Gaussian Mixture Periodicity Detection Algorithm (GMPDA), a novel method for detecting periodicity in the binary time series of event onsets.
Ezekiel Barnett   +4 more
doaj   +1 more source

Gauge Interaction as Periodicity Modulation

open access: yes, 2012
The paper is devoted to a geometrical interpretation of gauge invariance in terms of the formalism of field theory in compact space-time dimensions [arXiv:0903.3680].
Arkani-Hamed   +36 more
core   +1 more source

Periodicity transforms [PDF]

open access: yesIEEE Transactions on Signal Processing, 1999
This paper presents a method of detecting periodicities in data that exploits a series of projections onto "periodic subspaces". The algorithm finds its own set of nonorthogonal basis elements (based on the data), rather than assuming a fixed predetermined basis as in the Fourier, Gabor, and wavelet transforms.
Sethares, William A., Staley, Thomas W.
openaire   +2 more sources

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

open access: yesFEBS 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

Periodicity in the Light Curve of P Cygni - Indication for a Binary Companion?

open access: yes, 2018
We use observations of the Luminous Blue Variable (LBV) P Cygni spanning seven decades, along with signal processing methods, to identify a periodicity in the stellar luminosity.
Kashi, Amit   +2 more
core   +1 more source

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

open access: yesFEBS 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   +10 more
wiley   +1 more source

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