Results 111 to 120 of about 562,891 (295)

Inverse Design of Mirror‐Symmetric Disordered Systems for Broadband Perfect Transmission

open access: yesLaser &Photonics Reviews, EarlyView.
This work introduces an inverse design approach to achieve broadband perfect wave transmission in mirror‐symmetric disordered media. Leveraging symmetry simplifies optimization and enables control of multiple reflectionless states. Experiments in microwave waveguides confirm the design of exceptional points, bandpass filters, and broadband quasi ...
Zhazira Zhumabay   +4 more
wiley   +1 more source

Anarchistische Bibliothek & Archiv Wien

open access: yesLibrary Ideas, 2014
Bibliothekskollektiv Anarchistische Bibliothek & Archiv Wien
doaj   +1 more source

CALL: Die Gesellschaft der Medienpädagogik

open access: yesMedienimpulse
Die Herbsttagung der Sektion Medienpädagogik der DGfE wird in Kooperation mit der Sektion Medienpädagogik der ÖFEB durchgeführt und vom Arbeitsbereich Medienpädagogik im Institut für Bildungswissenschaft der Universität Wien in Kooperation mit dem ...
Christian Swertz
doaj  

Laurels or Thorns of Trust? How Embeddedness Moderates the Exchange‐Satisfaction Relationship in Franchising

open access: yesManagerial and Decision Economics, EarlyView.
ABSTRACT Exchanges in franchise systems are embedded in the level of trust that exists in franchisee–franchisor relationships. Although trust is essential in business relationships, it can unfold a negative side effect on the appreciation of exchange in these relationships as hidden costs of trust.
Matthias Glaser   +2 more
wiley   +1 more source

Bericht über die Jahrestagung 2014 des Arbeitskreises kritischer Bibliothekarinnen und Bibliothekare (KRIBIBI) (WIEN, 7.–8. NOVEMBER 2014)

open access: yesMitteilungen der Vereinigung Österreichischer Bibliothekarinnen und Bibliothekare, 2015
„Alles neu? Bibliothekarisches Berufsbild im Wandel“ Unter diesem Titel fand in Wien am 7. und 8. November die Jahrestagung 2014 des Arbeitskreises KRIBIBI statt.
Nikolaus Hamann, Peter Jobmann
doaj  

Existence Analysis of a Three‐Species Memristor Drift‐Diffusion System Coupled to Electric Networks

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT The existence of global weak solutions to a partial‐differential‐algebraic system is proved. The system consists of the drift‐diffusion equations for the electron, hole, and oxide vacancy densities in a memristor device, the Poisson equation for the electric potential, and the differential‐algebraic equations for an electric network.
Ansgar Jüngel, Tuấn Tùng Nguyến
wiley   +1 more source

72. Jugendredewettbewerb 2025

open access: yesMedienimpulse
Der Jugend-Redewettbewerb findet österreichweit statt und wird vom Bundeskanzleramt koordiniert. Teilnehmen können Schülerinnen und Schüler, die beim Landesbewerb nicht jünger als 13 und nicht älter als 24 Jahre alt sind.
Katharina Kaiser-Müller
doaj  

Opening the Black Box of Nonprofit Reputation and Volunteer Attraction With Supervised Machine Learning

open access: yesNonprofit Management and Leadership, EarlyView.
ABSTRACT With the aim to explore the potential of machine learning for nonprofit research, this article contrasts traditional linear regression with four contemporary supervised machine learning approaches. Concretely, we predict (1) reputation ratings and (2) the total number of volunteers for 4021 non‐profit organizations in the U.S.
Moritz Schmid   +2 more
wiley   +1 more source

The relative roles of in situ diversification and lineage dispersal underlying diversity patterns at the assemblage level

open access: yesOikos, EarlyView.
Speciation, extinction, and dispersal are the historical processes influencing the spatial distribution of lineages and strongly influence diversity patterns. Here, we apply a recently developed methodological approach to quantify the relative legacies in situ diversification history (i.e.
Arthur Vinicius Rodrigues   +2 more
wiley   +1 more source

Radio-Symphonieorchester Wien (RSO Wien)

open access: yes, 2001
Orchester des Österreichischen Rundfunks, 1996 aus dem 1969 gegründeten ORF-Symphonieorchester hervorgegangen.
openaire   +1 more source

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