Results 41 to 50 of about 1,117,379 (284)

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

Multipole analysis for linearized $$f(R,{\mathcal {G}})$$ f(R,G) gravity with irreducible Cartesian tensors

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
The field equations of $$f(R,{\mathcal {G}})$$ f(R,G) gravity are rewritten in the form of obvious wave equations with the stress–energy pseudotensor of the matter fields and the gravitational field as its source under the de Donder condition.
Bofeng Wu, Chao-Guang Huang
doaj   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Solving the Bars-Green equation for moving mesons in two-dimensional QCD

open access: yesJournal of High Energy Physics, 2017
The two-dimensional QCD in the large N limit, generally referred to as the ’t Hooft model, is numerically investigated in the axial gauge in a comprehensive manner.
Yu Jia   +3 more
doaj   +1 more source

Trace Anomaly and Quantization of Maxwell's Theory on Non-Commutative Spaces

open access: yes, 2002
The canonical and symmetrical energy-momentum tensors and their non-zero traces in Maxwell's theory on non-commutative spaces have been found. Dirac's quantization of the theory under consideration has been performed.
Kruglov, S. I.
core   +5 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Amplitude/operator basis in chiral perturbation theory

open access: yesJournal of High Energy Physics, 2023
We establish a systematic construction of the on-shell amplitude/operator basis for Chiral Perturbation Theory (ChPT) in D = 4 spacetime dimensions and with an arbitrary number of flavors N f .
Ian Low   +3 more
doaj   +1 more source

Current stage of understanding and description of hadronic elastic diffraction

open access: yes, 2013
Current stage of development of the high-energy elastic diffractive scattering phenomenology is reviewed. Verification of various theoretical models via comparison of their predictions with the recent D0 and TOTEM data on the nucleon-nucleon total and ...
Godizov, A. A.
core   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Theoretical high energy physics research at the University of Chicago [PDF]

open access: yes, 1991
This report discusses High Energy research in the following area: cosmology, cp violation, quarks, string theory, and particle properties. (LSP).
Rosner, J.L.   +2 more
openaire   +5 more sources

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