Results 91 to 100 of about 994,338 (384)

A mixed methods analysis of environmental and household chaos: considerations for early-childhood obesity research

open access: yesBMC Public Health, 2021
Background Chaos has implications for child health that may extend to childhood obesity. Yet, results from studies describing associations between chaos and childhood obesity are mixed.
Kathryn L. Krupsky   +5 more
doaj   +1 more source

Recent Advances in χ(2)‐Based Nonlinear Frequency Conversion of Fiber Lasers

open access: yesAdvanced Photonics Research, EarlyView.
Visible and mid‐infrared fiber lasers, enabled by nonlinear frequency conversion of fiber lasers, offer several advantages such as high efficiency, excellent wavelength tunability, high power, and superior beam quality that are highly desirable for practical applications. This study provides a comprehensive review of recent research progress in the χ(2)
Bing Han   +10 more
wiley   +1 more source

Relativity and irreversibility

open access: yesDiscrete Dynamics in Nature and Society, 2004
The Lorentz transformation is extended to the decaying states in a relativistic model of interacting fields. The nonlocal action is defined beyond the Hilbert space.
I. Antoniou   +3 more
doaj   +1 more source

Chaos and quantum chaos in cosmological models [PDF]

open access: yesChaos, Solitons & Fractals, 1995
Spatially homogeneous cosmological models reduce to Hamiltonian systems in a low dimensional Minkowskian space moving on the total energy shell $H=0$. Close to the initial singularity some models (those of Bianchi type VIII and IX) can be reduced further, in a certain approximation, to a non-compact triangular billiard on a 2-dimensional space of ...
openaire   +3 more sources

Heterogeneity Landscape of Circulating Tumor Cells in Clinical Utility

open access: yesAdvanced Therapeutics, EarlyView.
This study reports the heterogeneity spectrum of circulating tumor cells. The factors involved in the spectrum promote CTCs to overcome barriers in the metastatic cascade but impact the clinical outcome of cancer patients. In summary, the heterogeneities in association with CTCs ultimately reduce patient survival and facilitate increasing mortality of ...
Md Kowsar Alam   +5 more
wiley   +1 more source

Theoretical foundation for the discrete dynamics of physicochemical systems: Chaos, self-organization, time and space in complex systems

open access: yesDiscrete Dynamics in Nature and Society, 1997
A new theoretical foundation for the discrete dynamics of physicochemical systems is presented. Based on the analogy between the π-theorem of the theory of dimensionality, the second law of thermodynamics and the stoichiometry of complex physicochemical ...
V. Gontar
doaj   +1 more source

Quantum Chaos and Quantum Randomness - Paradigms of Entropy Production on the Smallest Scales

open access: yes, 2019
Quantum chaos is presented as a paradigm of information processing by dynamical systems at the bottom of the range of phase-space scales. Starting with a brief review of classical chaos as entropy flow from micro- to macro-scales, I argue that quantum ...
Dittrich, Thomas
core   +1 more source

Discrete chaos

open access: yesJournal of Physics A: Mathematical and General, 1999
Essentially a new paper. postscript figures are from a scanner, they can be ghostviewed in in windows environment or printed. to appear in J. Phys.
Waelbroeck, Henri, Zertuche, Federico
openaire   +3 more sources

Bionic Microneedle Patch Inspired by Drosophila Tarsal Paws Boosts Healing in Bacterial Infectious Stomatitis

open access: yesAdvanced Science, EarlyView.
Microneedle suction cup patches, prepared using bionic Drosophila tarsal claws, can effectively treat bacterial infectious stomatitis by rapidly and efficiently leveraging multiple effects, including antibacterial and anti‐inflammatory properties, promotion of vasodilation, and active mechanical contraction of the wound.
Jiaqi Qin   +6 more
wiley   +1 more source

Non-Extensive Statistical Analysis of Energetic Particle Flux Enhancements Caused by the Interplanetary Coronal Mass Ejection-Heliospheric Current Sheet Interaction

open access: yesEntropy, 2019
In this study we use theoretical concepts and computational-diagnostic tools of Tsallis non-extensive statistical theory (Tsallis q-triplet: q s e n ,   q r e l ,   q s t a t ), complemented by other known tools of nonlinear ...
Evgenios G. Pavlos   +5 more
doaj   +1 more source

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