Results 91 to 100 of about 5,706,267 (307)

A Unified Framework for Generalized Symmetric Contractions and Economic Dynamics via Fractional Differential Equations

open access: yesFractal and Fractional
This study has developed a unified framework for modeling economic growth through Caputo fractional differential equations. The framework has established the existence and uniqueness of solutions by employing a generalized fixed-point approach.
Min Wang, Muhammad Din, Mi Zhou
doaj   +1 more source

Image Theory for Neumann Functions in the Prolate Spheroidal Geometry

open access: yesAdvances in Mathematical Physics, 2018
Interior and exterior Neumann functions for the Laplace operator are derived in terms of prolate spheroidal harmonics with the homogeneous, constant, and nonconstant inhomogeneous boundary conditions.
Changfeng Xue   +2 more
doaj   +1 more source

Precessing jets from a moving source and bright X-ray filaments in galaxy clusters

open access: yes, 2005
We present hydrodynamical calculations carried out with the 3D yguazu-a code of a precessing jet model, which interacts with a plane parallel wind. This scenario describes an extragalactic jet, in which the jet source is in motion with respect to the ...
A. C. Raga   +32 more
core   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Comparing jet-shaped point symmetry in cluster cooling flows and supernovae

open access: yesThe Open Journal of Astrophysics
I point out similarities between point-symmetric X-ray morphologies in cooling flow groups and clusters of galaxies, which are observed to be shaped by jets, and point-symmetric morphologies of eight core-collapse supernova (CCSN) remnants.
Noam Soker
doaj   +1 more source

Symmetries of 2-lattices and second order accuracy of the Cauchy-Born model [PDF]

open access: yes, 2012
We show that the Cauchy-Born model of a single-species 2-lattice is second order if the atomistic and continuum kinematics are connected in a novel way. Our proof uses a generalization to 2-lattices of the point symmetry of Bravais lattices. Moreover, by
Koten, Brian Van, Ortner, Christoph
core   +2 more sources

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Inviscid coupling between point symmetric bodies and singular distributions of vorticity [PDF]

open access: yesJournal of Fluid Mechanics, 2007
We study the inviscid coupled motion of a rigid body (of density ρb, in a fluid of density ρ) and singular distributions of vorticity in the absence of gravity, using for illustration a cylinder moving near a point vortex or dipolar vortex, and the axisymmetric interaction between a vortex ring and sphere.The coupled motion of a cylinder (radius a) and
Eames, Ian   +2 more
openaire   +4 more sources

The "Twin Jet" Planetary Nebula M2-9

open access: yes, 2000
We present a model for the structure, temporal behavior, and evolutionary status of the bipolar nebula M2-9. According to this model the system consists of an AGB or post-AGB star and a hot white dwarf companion, with an orbital period of about 120 years.
Corradi R. L. M.   +16 more
core   +2 more sources

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

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