Results 91 to 100 of about 5,555,873 (373)

Universality of Level Spacing Distributions in Classical Chaos

open access: yes, 2007
We suggest that random matrix theory applied to a classical action matrix can be used in classical physics to distinguish chaotic from non-chaotic behavior. We consider the 2-D stadium billiard system as well as the 2-D anharmonic and harmonic oscillator.
A. Burra   +37 more
core   +1 more source

Machine learning action parameters in lattice quantum chromodynamics [PDF]

open access: yes, 2018
Numerical lattice quantum chromodynamics studies of the strong interaction are important in many aspects of particle and nuclear physics. Such studies require significant computing resources to undertake.
P. Shanahan, D. Trewartha, W. Detmold
semanticscholar   +1 more source

Towards Reconstructing the Quantum Effective Action of Gravity. [PDF]

open access: yesPhysical Review Letters, 2018
Starting from a parametrization of the quantum effective action for gravity, we calculate correlation functions for observable quantities. The resulting templates allow us to reverse engineer the couplings describing the effective dynamics from the ...
B. Knorr, F. Saueressig
semanticscholar   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Is Cosmic Speed-Up Due to New Gravitational Physics? [PDF]

open access: yes, 2003
We show that cosmic acceleration can arise due to very tiny corrections to the usual gravitational action of general relativity, of the form ${R}^{\ensuremath{-}n}$ with $ng0.$ This model eliminates the need for a nonzero cosmological constant or any ...
S. Carroll   +3 more
semanticscholar   +1 more source

From omics to AI—mapping the pathogenic pathways in type 2 diabetes

open access: yesFEBS Letters, EarlyView.
Integrating multi‐omics data with AI‐based modelling (unsupervised and supervised machine learning) identify optimal patient clusters, informing AI‐driven accurate risk stratification. Digital twins simulate individual trajectories in real time, guiding precision medicine by matching patients to targeted therapies.
Siobhán O'Sullivan   +2 more
wiley   +1 more source

Penanaman Karakter Positif Pelajar Melalui Pembahasan Fenomena-Fenomena Fisika dan Pendekatan Analogi (Hasil Kajian Perkulihan Fisika Dasar)

open access: yesJPFT (Jurnal Pendidikan Fisika dan Teknologi), 2017
The discussion results of Fundamental Physics I lecturing, especially the 1st Newton law about movement, law of Lenz, electromagnetic induction, and law of Bernoulli about pressure of flowing fluid show that in the concepts implicitly there is an action ...
Joni Rokhmat
doaj   +1 more source

Lie Group Statistics and Lie Group Machine Learning Based on Souriau Lie Groups Thermodynamics & Koszul-Souriau-Fisher Metric: New Entropy Definition as Generalized Casimir Invariant Function in Coadjoint Representation

open access: yesEntropy, 2020
In 1969, Jean-Marie Souriau introduced a “Lie Groups Thermodynamics” in Statistical Mechanics in the framework of Geometric Mechanics. This Souriau’s model considers the statistical mechanics of dynamic systems in their “space of evolution” associated to
Frédéric Barbaresco
doaj   +1 more source

Process and Time

open access: yesEntropy, 2023
In regards to the nature of time, it has become commonplace to hear physicists state that time does not exist and that the perception of time passing and of events occurring in time is an illusion. In this paper, I argue that physics is actually agnostic
William Sulis
doaj   +1 more source

An accurate effective action for `baby' to `adult' skyrmions

open access: yes, 1997
Starting with a Chern-Simons theory, we derive an effective action for interacting quantum Hall skyrmions that takes into account both large-distance physics and short-distance details as well.
A. A. Belavin   +25 more
core   +1 more source

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