Results 91 to 100 of about 3,357,696 (317)

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

Energy Spectrum and Electrical Conductivity of Systems with the Strong Electronic Correlations

open access: yesУспехи физики металлов, 2009
Theory of electroconductivity in crystals with strong electron correlations is developed. Different approaches for description of disordered-systems’ electroconductivity are considered.
S. P. Repetskyi, V. B. Molodkin, I. G. Vyshyvana, E. G. Len, I. M. Melnyk, O. I. Musienko, B. V. Stashchuk
doaj   +1 more source

Orbital-selective phase transition induced by different magnetic states: A dynamical cluster approximation study [PDF]

open access: yes, 2010
Motivated by the unexplored complexity of phases present in the multiorbital Hubbard model, we analyze in this work the behavior of a degenerate two-orbital anisotropic Hubbard model at half filling where both orbitals have equal bandwidths and one ...
Hunpyo Lee   +3 more
semanticscholar   +1 more source

Approximate Inference via Clustering

open access: yes, 2021
In recent years, large-scale Bayesian learning draws a great deal of attention. However, in big-data era, the amount of data we face is growing much faster than our ability to deal with it. Fortunately, it is observed that large-scale datasets usually own rich internal structure and is somewhat redundant.
openaire   +2 more sources

Cluster approximation for the contact process [PDF]

open access: yesJournal of Physics A: Mathematical and General, 1994
9 pages, Latex format, 2 postscript ...
Ben-Naim, E., Krapivsky, P. L.
openaire   +2 more sources

Tight Fpt Approximation for Socially Fair Clustering

open access: yesSSRN Electronic Journal, 2022
The new version gives tight approximation results. However, the old version uses techniques that work in the streaming setting albeit at the cost of weaker approximation guarantees.
Dishant Goyal, Ragesh Jaiswal
openaire   +2 more sources

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

open access: yesFEBS 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   +11 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Note on the Approximation of the Conditional Intensity of Non-stationary Cluster Point Processes

open access: yesImage Analysis and Stereology, 2022
In this note we consider non-stationary cluster point processes and we derive their local intensity, i.e. the intensity of the process given the locations of one or more events of the process. We then provide some approximations of this local intensity.
Edith Gabriel, Joel Chadoeuf
doaj   +1 more source

Breakup reaction models for two- and three-cluster projectiles

open access: yes, 2010
Breakup reactions are one of the main tools for the study of exotic nuclei, and in particular of their continuum. In order to get valuable information from measurements, a precise reaction model coupled to a fair description of the projectile is needed ...
A. Cobis   +124 more
core   +1 more source

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