The one-dimensional organic–inorganic hybrid: catena-poly[bis­[1-(3-ammonio­prop­yl)-1H-imidazolium] [[iodidoplumbate(II)]-tri-μ-iodido-plumbate(II)-tri-μ-iodido-[iodidoplumbate(II)]-di-μ-iodido]]

The organic–inorganic hybrid, {(C6H13N3)2[Pb3I10]}n, was obtained by the reaction of 1-(3-ammonio­prop­yl)imidazolium triiodide and PbI2 at room temperature. The structure contains one-dimensional {[Pb3I10]4−}n polymeric anions spreading parallel to [001], resulting from face–face–edge association of PbI6 distorted octa­hedra. One of the PbII cations is imposed at an inversion centre, whereas the second occupies a general position. N—H⋯I hydrogen bonds connect the organic cations and inorganic anions

ASTERIX and 2.0 Knowledge Management : exploring the appropriation of 2.0 KMS via the Myth of the Gaulish village

International audienceKnowledge Management Systems (KMS) in companies have profoundly changed in recent years. They have become KMS 2.0 that aim to transform the firm and are driven by a new relationship to knowledge in line with 2.0 organisations. These 2.0 KMS have implemented modes of organisation that disrupt those that previously guided firms’ performance. This can sometimes lead to paradoxical organizational dysfunctions as witnessed by the difficulties faced by some traditionally hierarchical French companies. Through a case study of Constructor and a theoretical background on IS appropriation in organizations and myths in management, we show how the Asterix myth contributes to understanding how 2.0. KMS are appropriated in such companies. We find evidence of similarities regarding knowledge and Knowledge Management between the Asterix’ myth and the behaviours and practices concerning knowledge management within Constructor. As a result, the Asterix’ myth may be a relevant perspective for understanding the obstacles, advantages and appropriations of 2.0. KMS within French organizations

Tris(2,2'-bipyridine)iron(II) bis(1,1,3,3-tetracyano-2-ethoxypropenide) dihydrate : chiral hydrogen-bonded frameworks interpenetrate in three dimensions

The authors acknowledge the Algerian Ministry of Higher Education and Scientific Research, the Algerian Directorate-General for Scientific Research and Technological Development, and Ferhat Abbas Setif 1 University for financial support.In the title compound, [Fe(C10H8N2)3](C9H5N4O)2·2H2O, the chiral cations lie across twofold rotation axes in the space group C2/c. The anions and the water molecules are linked by two independent O-H⋯N hydrogen bonds to form C22(8) chains, and these chains are linked by the cations via C-H⋯N and C-H⋯O hydrogen bonds to form two interpenetrating three-dimensional frameworks, each of which contains only one enantiomeric form of the chiral cation.Publisher PDFPeer reviewe

Introduction to the serious games, gamification, and innovation minitrack

A Serious Game combines a serious intention with a game's rules and targets. They are often considered to be technological applications that use games to engage individuals in an experience through which a learning or professional training aim can be explored. From the innovation perspective, concepts such as serious gaming and gamification are the most interesting and valuable in this domain. If the first repurposes a game via different methods, in order to offer activities that go beyond mere entertainment, the second uses game design to enhance individual's willingness to participate to originally non-playful experiences. The papers in this minitrack discuss different aspects related to the adaption of Serious Games and the use of gamification as an innovation. Each offers a unique contribution to our understanding of how Serious Games would be used to support learning

Elaboration, structural, vibrational and optical investigation of a two-dimensional self-assembled organic-inorganic hybrid compound

cited By 6International audienceSingle crystals of a hybrid organic/inorganic material with the formula (C4N3H16)Cl[CuCl4] were elaborated and studied by X-ray diffraction, and photoluminescence. The crystals consist of a self-assembled multilayer structure with a Pnam space group. The structure is built up from the staking of infinite two-dimensional layers of CuCl6 corner-sharing octahedra, separated by organic (C4N3H16)3+ chains. Such a structure may be regarded as a multi quantum well system, in which CuCl6 layers act as semiconductor wells and the organic molecules act as insulator barriers Furthermore, the room temperature IR and Raman spectra of the title compound were recorded and analyzed. For optical investigations, thin films have been prepared by spin-coating method from the ethanol solution of the material. Optical absorption spectra shows characteristic absorptions of CuCl-based layered perovskite centered at 300 and 380 nm, whereas the photoluminescence spectra shows a bleu intense emission around 420 nm, associated to radiative recombination of confined excitons in the CuCl6 Quantum wells

Cephalometric diagnosis of obstructive sleep apnea in Tunisian subjects: A case-control study.

Objective: The main objective of this case-control study was to determine the anatomic risk factors responsible for the appearance and severity of Obstructive Sleep Apnea (OSA). Methods: Lateral radiographs of 33 patients with OSA, whose diagnosis was already confirmed by polysomnograpy (PSG), were compared to those of 33 control subjects. Seven anthropometric and 20 cephalometric variables were studied. The statistical analysis was performed using the SPSS version 17 and the significance rate was set at 5%. Results: the findings of our study support the literature data showing that patients with OSA are older and fatter [ BMI: 36,94kg/m² vs 23,21kg/m², p 0.001], and have more craniofacial anomalies manifested by an inferiorly positioned hyoid bone (H_MP: 20.13mm vs 13.48mm ; H_C3: 36.81mm vs 43.10mm ; H_ENA: 99.45mm vs 90.66mm ; p 0.001) and a narrower oropharynx associated with an increase of the tongue and soft palate length p(UH)=0.010 and p(UL)=0.000, p(TgLt)= 0.000).Conclusion: Fatty subjects with craniofacial abnormalities are more predisposed to develop OSA. Key words: obstructive sleep apnea, cephalometry, diagnosis, hyoid bon

Optical properties and ab initio study on the hybrid organic–inorganic material [(CH3)2NH2]3[BiI6]

International audienc