Results 71 to 80 of about 144,099 (322)

Time evolution of companies towards a stable scaling curve obtained from flow diagrams in three-dimensional phase space

New Journal of Physics, 2019
Although scaling relations of power law forms have been revealed in a wide variety of complex systems, the origin of scaling relations in real systems remains mostly unsolved. Based on a long tradition in physics, we here explore the phase space dynamics
Yuh Kobayashi, Hideki Takayasu, Shlomo Havlin, Misako Takayasu   +3 more
doaj   +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

Gibbs attractor: a chaotic nearly Hamiltonian system, driven by external harmonic force

, 2003
A chaotic autonomous Hamiltonian systems, perturbed by small damping and small external force, harmonically dependent on time, can acquire a strange attractor with properties similar to that of the canonical distribution - the Gibbs attractor.
B. V. Chirikov, C. Jarzynski, D. Cohen, G. Casati, H.-D. Meyer, I. V. Pogorelov, J. Qiang, J.-D. Bao, N. B. Delone, P. A. Vorobyev, P. V. Elyutin, P. V. Elyutin, P. V. Elyutin, P. V. Elyutin, R. A. Pullen, R. Mankin, R. Mankin, T. Pohl   +17 more
core   +1 more source

Heterotic flux attractors [PDF]

Journal of High Energy Physics, 2010
We find attractor equations describing moduli stabilization for heterotic compactifications with generic SU(3)-structure. Complex structure and K hler moduli are treated on equal footing by using SU(3)xSU(3)-structure at intermediate steps. All independent vacuum data, including VEVs of the stabilized moduli, is encoded in a pair of generating ...
Anguelova, Lilia, Larsen, Finn, O'connell, Ross   +2 more
openaire   +2 more sources

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

Global compact attractors and complete bounded trajectories for compressible magnetohydrodynamic system of equations [PDF]

Theoretical and Applied Mechanics
In this article, we investigate the global behavior of magnetohydrodynamic (MHD) fluid’s weak solutions in three-dimensional bounded domain with a compact Lipschitz boundary driven by arbitrary forces.
Muhammad Jan
doaj   +1 more source

Emergence of chaotic attractor and anti-synchronization for two coupled monostable neurons

, 2004
The dynamics of two coupled piece-wise linear one-dimensional monostable maps is investigated. The single map is associated with Poincare section of the FitzHugh-Nagumo neuron model.
M. Courbage, M. Senneret, Manor Y., V. B. Kazantsev, V. I. Nekorkin   +4 more
core   +2 more sources

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

DETERMINISTIC CHARACTER OF CHANGES OF THE CASPIAN SEA LEVEL AND ITS QUANTITATIVE PARAMETERS

Юг России: экология, развитие, 2014
. The results of determination of parameters of dynamics of Caspian Sea level changes were studied. We determined quantities and dimensions of the phase space and the attractor, we calculated exponents of Lyapunov and assessed value of Kolmogorov – Sinai
U. G. Magomedbekov
doaj   +1 more source

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