Results 31 to 40 of about 3,193,435 (364)

Comparative Analysis of the Structural Weights of Fixed Prostheses of Zirconium Dioxide, Metal Ceramic, PMMA and 3DPP Printing Resin—Mechanical Implications

open access: yesDentistry Journal, 2023
The aim of this study was to determine the mechanical implications of four-unit fixed dental prostheses (FDPs) made of (1) monolithic zirconium dioxide (ZR O2), (2) polymethylmethacrylate (PMMA), (3) metal ceramic (PFM) and (4) impression resin (3DPP ...
Cristian Abad-Coronel   +5 more
doaj   +1 more source

On pseudo-codecomposition of a transformation group [PDF]

open access: yesarXiv, 2022
In the following text we introduce the concept of pseudo-codecomposition of a transformation group, also we show the collection of all transformation groups pseudo-codecomposable to distal ones is a proper intermediate class of the class of all transformation groups and the class of all transformation groups codecomposable to distal ones.
arxiv  

Spacetime Ehlers group: Transformation law for the Weyl tensor [PDF]

open access: yes, 2001
The spacetime Ehlers group, which is a symmetry of the Einstein vacuum field equations for strictly stationary spacetimes, is defined and analyzed in a purely spacetime context (without invoking the projection formalism).
Mars, Marc
core   +2 more sources

Pseudoduality in Sigma Models [PDF]

open access: yes, 2002
We revisit classical "on shell" duality, i.e., pseudoduality, in two dimensional conformally invariant classical sigma models and find some new interesting results.
Alvarez   +27 more
core   +2 more sources

Developing an accessible video player

open access: yesJournal of Accessibility and Design for All, 2012
Online Channels in financial institutions allows customers with disabilities to access services in a convenient way for them.However, one of the current challenges of this sector is to improve web accessibility and to incorporate technological resources ...
Juan José Rodríguez Soler
doaj   +1 more source

Disjointness in Transformation Groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
In this paper, we shall be concerned with the question of what conditions on minimal transformation groups will guarantee that they are disjoint. Generalizing a result of I. Bronstein about lifting of minimality through group extensions to associated bitransformation groups, we prove that in a large class of transformation groups, disjointness is ...
openaire   +2 more sources

Polish topologies on groups of non-singular transformations [PDF]

open access: yesarXiv, 2021
In this paper, we prove several results concerning Polish group topologies on groups of non-singular transformation. We first prove that the group of measure-preserving transformations of the real line whose support has finite measure carries no Polish group topology. We then characterize the Borel $\sigma$-finite measures $\lambda$ on a standard Borel
arxiv  

Transforming document management for environmental sustainability: the mediating effect of pro-environmental culture and service satisfaction in higher education institutions

open access: yesFrontiers in Sustainability
This research investigates the factors influencing environmental sustainability in a Peruvian higher education institution (HEI), using Structural Equation Modeling (SEM) with SmartPLS.
Jessie Bravo   +7 more
doaj   +1 more source

Group analysis approach for finding reciprocal transformations for the two-dimensional stationary gasdynamics [PDF]

open access: yesarXiv, 2021
Equivalence transformations play one of the important roles in continuum mechanics. These transformations reduce the original equations to simpler forms. One of the classes of nonlocal equivalence transformations is the class of reciprocal transformations. Despite the long history of applications of such transformations in continuum mechanics, there is
arxiv  

Analytic Central Orbits and their Transformation Group

open access: yes, 2008
A useful crude approximation for Abelian functions is developed and applied to orbits. The bound orbits in the power-law potentials A*r^{-alpha} take the simple form (l/r)^k = 1 + e cos(m*phi), where k = 2 - alpha > 0 and 'l' and 'e' are generalisations ...
Arnold   +21 more
core   +1 more source

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