Results 81 to 90 of about 911,499 (371)

A New Simple Chaotic System with One Nonlinear Term

Mathematics, 2022
In this research article, a simple four-dimensional (4D) chaotic dynamic system with uncomplicated structure and only one nonlinear term is introduced. The features of the proposed design have been conducted with some standard nonlinear dynamic analysis ...
Yassine Bouteraa, Javad Mostafaee, Mourad Kchaou, Rabeh Abbassi, Houssem Jerbi, Saleh Mobayen   +5 more
doaj   +1 more source

Attractor of hydrodynamic attractors

Understanding how hydrodynamics emerges rapidly in the medium produced by relativistic heavy-ion collisions remains a key theoretical challenge. While the attractor solution -- manifesting as a non-thermal fixed point during the early evolution stage -- offers a potential explanation, it does not fully account for how far-from-equilibrium systems ...
Chen, Shile, Shi, Shuzhe
openaire   +2 more sources

Edelstein’s contractivity and attractors [PDF]

Proceedings of the American Mathematical Society, 1979
In this article an example is constructed to show that Theorem 1.1 of L. Janos [Canad. Math. Bull. 18 (1975), no. 5, 675-678] is false. A proper formulation is obtained as follows. Theorem. If ( X , τ ) (X,\tau ) is a metrizable topological space, f : X → X
Janos, Ludvik, Ko, Hwei-Mei, Tan, Kok-Keong   +2 more
openaire   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Fractal Analysis and Time Series Application in ZY-4 SEM Micro Fractographies Evaluation

Fractal and Fractional, 2022
SEM microfractographies of Zircaloy-4 are studied by fractal analysis and the time-series method. We first develop a computer application that associates the fractal dimension and lacunarity to each SEM micrograph picture, and produce a nonlinear ...
Maria-Alexandra Paun, Vladimir-Alexandru Paun, Viorel-Puiu Paun   +2 more
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Non-Supersymmetric Attractors in $R^2$ Gravities

, 2006
We investigate the attractor mechanism for spherically symmetric extremal black holes in a theory of general $R^2$ gravity in 4-dimensions, coupled to gauge fields and moduli fields.
A. Dabholkar, A. Dabholkar, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, A. Sen, A. Sinha, Alireza Tavanfar, B. de Wit, Bhamidipati Chandrasekhar, D. Bak, E.P. Verlinde, G. Lopes Cardoso, G. Lopes Cardoso, G. Lopes Cardoso, Hossein Yavartanoo, J.M. Maldacena, K. Goldstein, M. Alishahiha, P. Kraus, P. Kraus, P. Prester, P.K. Tripathy, R. Kallosh, R. Kallosh, Shahrokh Parvizi, V. Hubeny   +29 more
core   +4 more sources

Initial Conditions in String Cosmology [PDF]

, 1998
We take a critical look at a recent conjecture concerning the past attractor in the pre-big-bang scenario. We argue that the Milne universe is unlikely to be a general past attractor for such models and support this with a number of examples.Comment: 10 ...
A. Buonanno, A. G. Doroshkevich, A. G. Doroshkevich, C. B. Collins, C. G. Hewitt, C. G. Hewitt, Ch. Charach, D. Clancy, Dominic Clancy, E. Kasner, G. F. R. Ellis, G. Veneziano, G. Veneziano, J. D. Barrow, J. D. Barrow, J. D. Barrow, J. Maharana, J. Wainwright, James E. Lidsey, K. C. Jacobs, L. D. Landau, M. B. Green, M. Carmeli, M. Gasperini, M. Gasperini, M. Gasperini, M. P. Ryan, M. S. Turner, R. Brustein, Reza Tavakol, S. T. C. Siklos, V. N. Lukash   +31 more
core   +2 more sources

THE ATTRACTOR AND THE QUANTUM STATES [PDF]

International Journal of Quantum Information, 2009
The dissipative dynamics anticipated in the proof of 't Hooft's existence theorem — "For any quantum system there exists at least one deterministic model that reproduces all its dynamics after prequantization" — is constructed here explicitly. We propose a generalization of Liouville's classical phase space equation, incorporating dissipation and ...
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source