Results 121 to 130 of about 3,603,035 (255)

On the Simplest Quartic Fields and Related Thue Equations [PDF]

open access: yes, 2014
17 pages, 3 tables, modified Theorem 8.1 and added 2 ...
openaire   +2 more sources

Measuring Frame Evolution: Smoothed Temporal Framing Trajectories in Complex Policy Debates

open access: yesJCMS: Journal of Common Market Studies, EarlyView.
Abstract The European Union faces long‐term governance challenges in contested domains, such as migration management, health data sharing, and facial recognition technology. Across these fields, political debates are shaped by shifting ways in which actors frame problems and solutions. Understanding how such framing contests evolve over time is crucial
Philip Leifeld, Kristijan Garic
wiley   +1 more source

Quintessential quartic quasi-topological quartet

open access: yesJournal of High Energy Physics, 2017
We construct the quartic version of generalized quasi-topological gravity, which was recently constructed to cubic order in arXiv:1703.01631 . This class of theories includes Lovelock gravity and a known form of quartic quasi-topological gravity as ...
Jamil Ahmed   +3 more
doaj   +1 more source

Erythrocyte ‘Feierzeit’ reaction: Novel filamentous and vesicular response to n‐butyl acetate

open access: yesJournal of Microscopy, EarlyView.
Abstract Human erythrocytes (red blood cells; RBCs) undergo spontaneous disassembly after several hours of exposure to n‐butyl acetate (nBA). Images of the morphological changes were captured in time‐lapse sequences using differential interference contrast (DIC) light microscopy.
Philip W. Kuchel
wiley   +1 more source

On Two-parametric Quartic Families of Diophantine Problems [PDF]

open access: yes, 1998
Two-parametric quartic Thue equations are completely solved for sufficiently large values of the parameters. Exceptional units are computed in related quartic number fields. The method depends heavily on A.
Tichy, R.F., Pethö, A.
core   +1 more source

A Bayesian approach to spectroscopic depth sectioning for locating dopant atoms

open access: yesJournal of Microscopy, EarlyView.
Abstract Locating dopants in 3D is of great interest as advanced materials and devices increasingly rely on control at atomic dimensions, and microscopy tools are constantly in development for this purpose. One potential tool is electron energy loss spectroscopy (EELS) depth sectioning, where a core‐loss signal is collected as a function of electron ...
Michael Deimetry   +3 more
wiley   +1 more source

A new method of solving certain quartic and higher degree diophantine equations [PDF]

open access: yes, 2018
In this paper, we present a new method of solving certain quartic and higher degree homogeneous polynomial diophantine equations in four variables. The method can also be applied to some diophantine systems in five or more variables.
Ajai Choudhry
core   +1 more source

Method of first integrals and interface, surface waves

open access: yesVietnam Journal of Mechanics, 2010
The method of first integrals (MFI) based on the equation of motion for the displacement vector, or  based on the one for the traction vector was introduced  recently in order to find explicit secular equations of Rayleigh waves whose characteristic ...
Pham Chi Vinh   +4 more
doaj   +1 more source

On some ternary quartic diophantine equations

open access: yes, 1966
The author considers the equation (*) \(z^2 = U_1^2 + U_2 U_3\) where the \(U_i\) are polynomials in \(x, y\), vanishing at the origin and having integral coefficients. He shows that very slight further conditions on the \(U_i\) ensure that (*) has infinitely many solutions in integers \(x, y, z\). By putting \(z\pm U_i= pU_2/q, qU_3/p\), he reduces (*)
openaire   +2 more sources

A Note on Local Polynomial Regression for Time Series in Banach Spaces

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT This work extends local polynomial regression to Banach space‐valued time series for estimating smoothly varying means and their derivatives in non‐stationary data. The asymptotic properties of both the standard and bias‐reduced Jackknife estimators are analyzed under mild moment conditions, establishing their convergence rates.
Florian Heinrichs
wiley   +1 more source

Home - About - Disclaimer - Privacy