Results 81 to 90 of about 236,167 (259)

Transition Modeling and Econometric Convergence Tests [PDF]

open access: yes
A new panel data model is proposed to represent the behavior of economies in transition allowing for a wide range of possible time paths and individual heterogeneity.
Peter C.B. Phillips, Donggyu Sul
core  

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

Fractional Output Convergence, with an Application to Nine Developed Countries [PDF]

open access: yes
We argue that cross-country convergence of output per capita should be examined in a fractional-integration time-series context and we propose a new empirical strategy to test it, which is the first one that discriminates between fractional long-run ...
Arielle Beyaert
core  

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

open access: yesAdvanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov   +10 more
wiley   +1 more source

Local Convergence for an Improved Jarratt-type Method in Banach Space

open access: yes, 2015
We present a local convergence analysis for an improved Jarratt-type methods of order at least five to approximate a solution of a nonlinear equation in a Banach space setting. The convergence ball and error estimates are given using hypotheses up to the
González Sánchez, Daniel   +2 more
core   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Spatial Effects in Convergence of Portuguese Product [PDF]

open access: yes
This study analyses, through cross-section estimation methods, the influence of spatial effects in the conditional product convergence in the parishes?
Vítor Martinho
core  

Local taxation in the EU: A convergence study

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2019
In this note we study the convergence of local taxation in the EU-15 for 1975-2015 and two sub-periods, 1975-1994 and 1995-2015. Through a sigma convergence analysis, we find evidence of convergence for 1975-2015 and 1995-2015 but divergence for 1975-1994. In a club convergence approach, the countries are clustered into two clubs in the overall sample,
Delgado, Francisco J.   +2 more
openaire   +4 more sources

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

The Russian Regional Convergence Process: Where Does It Go? [PDF]

open access: yes
This paper investigates the income convergence among Russian regions in the period 1998-2006. It makes two major contributions to rather extensive literature on the regional convergence in Russia.
Konstantin A. Kholodilin   +2 more
core  

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