Search results for " frame"
showing 10 items of 1365 documents
Globalization Competencies in Information Systems and E-Learning
2010
Abstract. Internationalization and globalization competences play a major role for graduates and employees in IS related enterprises. In contrast to other disciplines such as Business or Economics, the IS discipline rarely addresses this competence area. In the paper, we identify generic competence areas: coordination, communication, and cooperation. We derive domain specific competences for the field of E-Learning in Higher Education. The paper concludes with an outlook of promising research areas to foster and intensify research in the domain. peerReviewed
Copper( ii ) complexes with phosphorylated 1,10-phenanthrolines: from molecules to infinite supramolecular arrays
2016
International audience; The reaction of phosphorylated 1,10-phenanthrolines 3-Pphen, 3,8-Pphen and 4,7-Pphen (3-Pphen = 3-diethoxyphosphorylphenanthroline, 3,8-Pphen = 3,8-bis(diethoxyphosphoryl) phenanthroline, 4,7-Pphen = 4,7-bis(diethoxyphosphoryl) phenanthroline) and hydrated copper(II) nitrate in a 1 : 1 ratio leads to the formation of supramolecular architectures. In the 1D coordination polymer [Cu(3-Pphen)(NO3)(2)](n) (2) the copper atom is coordinated to only one phenanthroline ligand and the coordination sphere is completed by two oxygen atoms of nitrate anions and the oxygen atom of the phosphoryl group from the neighbouring phenanthroline ligand. Complex Cu(3,8-Pphen)(NO3)(2) (3)…
Reproducing pairs of measurable functions
2017
We analyze the notion of reproducing pair of weakly measurable functions, which generalizes that of continuous frame. We show, in particular, that each reproducing pair generates two Hilbert spaces, conjugate dual to each other. Several examples, both discrete and continuous, are presented.
Le cadre légal, levier du référencement : un engagement du pôle éditorial de Bourgogne Franche-Comté
2022
Le cadre légal, levier du référencement : un engagement du pôle éditorial de Bourgogne Franche-Comté
La préservation de l'environnement nocturne : les enjeux d'une controverse sociotechnique
2013
This communication explains the birth of an environmental problem, light pollution, understood as a socio-technical controversy. Over forty years, in support of the actor-network approach, it traces the conditions of its emergence, transformation and dissemination to local, national and transnational levels, and through various professional disciplines. Schematically, "environmentalists" uphold a holistic approach of "nocturnité" and define artificial light as a pollutant. Facing them, the "technicist" defend a segmented approach and define artificial light as a nuisance. The implementation of this controversy on the political agenda leads to institutional decisions that grasp it with diffi…
Shifts in participation frameworks in multiparty conversation
2008
The Sense of Belonging to the Country: Integrative Relationships and Spatiotemporal Commitment
2020
The satisfaction of the need to belong reflects in the sense of being an integrative part of the group or social system. There is some lack of empirical evidence for the structure of this sense at the macro level. This study assessed a two-dimensional model of the sense of belonging to the country, which included relational and spatiotemporal components. Participants were 539 university students from 18 to 50 (74% females). Questions regarding involvement, perceived acceptance, sense of commonality, and feeling at home represented the relational component of the sense of belonging. Four temporal categories—the recent past, present, and the near and distant future—were included in the assess…
Crystal structure of a low-spin poly[di-μ3-cyanido-di-μ2-cyanido-bis(μ2-2-ethylpyrazine)dicopper(I)iron(II)]
2019
In the title metal–organic framework, [Fe(C6H8N2)2{Cu(CN)2}2] n , the low-spin FeII ion lies at an inversion centre and displays an elongated octahedral [FeN6] coordination environment. The axial positions are occupied by two symmetry-related bridging 2-ethylpyrazine ligands, while the equatorial positions are occupied by four N atoms of two pairs of symmetry-related cyanide groups. The CuI centre is coordinated by three cyanide carbon atoms and one N atom of a bridging 2-ethylpyrazine molecule, which form a tetrahedral coordination environment. Two neighbouring Cu atoms have a short Cu...Cu contact [2.4662 (7) Å] and their coordination tetrahedra are connected through a common edge between…
Crystal structure of catena-poly[[[(2-ethoxypyrazine-κN)copper(I)]-di-μ2-cyanido] [copper(I)-μ2-cyanido]]
2019
The title compound, {[Cu(EtOpz)(CN)2][CuCN]}n, where EtOpz is 2-ethoxypyrazine, is a two-dimensional polymeric copper complex with different coordination environments of the two CuI ions. One Cu atom is coordinated to the 2-ethoxypyrazine molecule and two bridging cyanide ligands, equally disordered over two sites. The second Cu atom is coordinated by two disordered over two sites bridging cyanide groups. Two copper–cyanide chains are connected through Cu⋯Cu contact.
Intramolecular 1,5-S...N σ-hole interaction in (E)-N′-(pyridin-4-ylmethylidene)thiophene-2-carbohydrazide
2020
The hydrazide-hydrazone forms inverse dimers via hydrogen bonding, but its conformation is defined by the presence of an intramolecular chalcogen bond. Electrostatic forces dominate in the crystal packing and give rise to a layered supramolecular structure.