Results 91 to 100 of about 45,707 (311)

Bifurcations of transition states : morse bifurcations [PDF]

, 2014
A transition state for a Hamiltonian system is a closed, invariant, oriented, codimension-2 submanifold of an energy level that can be spanned by two compact codimension-1 surfaces of unidirectional flux whose union, called a dividing surface, locally ...
MacKay, Robert S., Strub, Dayal C.
core   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

SSB: QSM vs. QFT [PDF]

, 2012
Philosophical analysis of spontaneous symmetry breaking (SSB) in particle physics has been hindered by the unavailability of rigorous formulations of models in quantum field theory (QFT).
Fraser, Doreen
core  

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

Structurally corrected invariant-preserving neural networks for conservative dynamical systems: a statistically validated approach

Scientific Journal of King Faisal University: Basic and Applied Sciences
In this paper a structural correction in neural network architecture for the long-time integration of conservative dynamical systems is used to overcome uncontrolled invariant drift existing in standard physics-informed formulations.
Fatima Ouaar
doaj   +1 more source

Higgs inflation in Weyl-invariant Einstein-Cartan gravity

Physics Letters B
In this short note we analyze the inflationary dynamics in Weyl-invariant Einstein-Cartan gravity coupled to the Standard Model of particle physics.
Georgios K. Karananas, Mikhail Shaposhnikov   +1 more
doaj   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Applications of Symmetry Methods to the Theory of Plasma Physics

Symmetry, Integrability and Geometry: Methods and Applications, 2006
The theory of plasma physics offers a number of nontrivial examples of partial differential equations, which can be successfully treated with symmetry methods.
Giampaolo Cicogna, Francesco Ceccherini, Francesco Pegoraro   +2 more
doaj  

CERA: A Framework for Improved Generalization of Machine Learning Models to Changed Climates

Journal of Advances in Modeling Earth Systems
Robust generalization under climate change remains a major challenge for machine learning applications in climate science. Most existing approaches struggle to extrapolate beyond the climate they were trained on, leading to a strong dependence on ...
Shuchang Liu, Paul A. O’Gorman
doaj   +1 more source

Weyl-invariant Einstein–Cartan gravity with a heavy ALP: Higgs inflation and α-attractors

Physics Letters B
We initiate the analysis of the inflationary dynamics in Weyl-invariant Einstein–Cartan gravity nonminimally coupled to the Standard Model of particle physics.
Georgios K. Karananas, Mikhail Shaposhnikov, Sebastian Zell   +2 more
doaj   +1 more source