117,492 research outputs found
Macron ou l´obsession de la nouveauté
No full textRarement une élection présidentielle française n´a autant été suivie à l´étranger et particulièrement en Suède. Après le vote sur le Brexit et l´élection de Donald Trump, l´incertitude de cette échéance inquiétait. Dans de nombreux pays occidentaux, il y a eu une vague de remplacement des élites politiques et Emmanuel Macron a bénéficié d´une certaine empathie journalistique depuis quelques mois, comme si sa jeunesse et sa trajectoire originale lui donnaient des atouts naturels pour assurer cette transition politique. Chacun(e) a une opinion sur cet homme et cette conférence se propose de revenir, à l´aide d´exemples littéraires et esthétiques, sur les modalités d´accession au pouvoir et le style politique incarné par Emmanuel Macron
Macron ou l´obsession de la nouveauté [Elektronisk resurs]
No full textRarement une élection présidentielle française n´a autant été suivie à l´étranger et particulièrement en Suède. Après le vote sur le Brexit et l´élection de Donald Trump, l´incertitude de cette échéance inquiétait. Dans de nombreux pays occidentaux, il y a eu une vague de remplacement des élites politiques et Emmanuel Macron a bénéficié d´une certaine empathie journalistique depuis quelques mois, comme si sa jeunesse et sa trajectoire originale lui donnaient des atouts naturels pour assurer cette transition politique. Chacun(e) a une opinion sur cet homme et cette conférence se propose de revenir, à l´aide d´exemples littéraires et esthétiques, sur les modalités d´accession au pouvoir et le style politique incarné par Emmanuel Macron.</p
Il contratto a termine nella riforma Macron
No full textIl contributo offre un’analisi della riforma disciplina del lavoro a termine varata dal governo Macron. Le novità relative alle condizioni di legittimo ricorso all’istituto sono precedute dalla definizione delle linee portanti del pacchetto normativo che, nel suo complesso, lascia trasparire un allentamento delle rigidità legislative con riguardo vuoi al funzionamento del mercato del lavoro, vuoi agli strumenti di ingresso nel mercato stesso, vuoi alle tutele relative all’uscita da tale mercato. Sul piano delle specifiche innovazioni relative al contratto a termine ciò che emerge è un modello di lavoro a tempo determinato caratterizzato dal ruolo tutt’altro che secondario della contrattazione collettiva; contrattazione cui è devoluta la determinazione del limite di durata massima del contratto così come la fissazione della soglia di durata e del numero di proroghe o ancora l’individuazione dell’intervallo temporale in caso di successione di contratti a termine. Il che denota una significativa valorizzazione della fonte negoziale: con la riforma Macron la previsione legislativa opera in funzione meramente suppletiva rispetto alla disciplina approntata dalla contrattazione collettiva
Le pré carré africain : de de Gaulle à Macron
No full textCe mémoire analyse l’histoire et le développement des relations franco-africaines du colonialisme au XXIe siècle. Je montre comment, à chaque étape de ces relations, que ce soit pendant le colonialisme, la décolonisation, la Françafrique ou l\u27amitié de Macron, l\u27objectif de l\u27État français n\u27a pas changé : préserver l\u27Afrique comme le pré carré de la France. Je soutiens qu\u27au XXIe siècle, alors que le continent africain se mondialise de plus en plus, l\u27État français cherche désespérément à renforcer ses liens avec ses anciennes colonies, notamment par l\u27éducation, la langue et la culture. Bien qu\u27Emmanuel Macron déclare que la Françafrique est terminée, sa stratégie visant à faire appel à la jeunesse africaine fait écho à la tactique de la « mission civilisatrice » du colonialisme français. Je soutiens donc que des questions concernant l\u27héritage colonial français, et leur impact sur l’identité africaine, restent essentielles même au XXIe siècle
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Bioengineering case study to evaluate complications of adverse anatomy of aortic root in transcatheter aortic valve replacement: Combining biomechanical modelling with CT imaging
No full textGated computed tomography (CT) might not adequately predict occurrence of post‐implantation transcatheter aortic valve replacement (TAVR) complications in hostile aortic root as it would require a more complex integration of morphological, functional and hemodynamical parameters. We used a computational framework based on finite element analysis (FEA) to simulate patient‐specific implantation. Application of biomechanical modelling using FEA to gated‐CT was able to demonstrate the relation of the device with voluminous calcification, its consequent misalignment and a significant stent deformation. Use of FEA and other advanced computed predictive modelling techniques as an adjunct to CT scan could improve our understanding of TAVR, potentially predict complications and fate of the devices after implantation and inform patient‐specific treatment
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Corevalve vs. Sapien 3 transcatheter aortic valve replacement: A finite element analysis study
No full textAim: to investigate the factors implied in the development of postoperative complications in both self-expandable and balloon-expandable transcatheter heart valves by means of finite element analysis (FEA). Materials and methods: FEA was integrated into CT scans to investigate two cases of postoperative device failure for valve thrombosis after the successful implantation of a CoreValve and a Sapien 3 valve. Data were then compared with two patients who had undergone uncomplicated transcatheter heart valve replacement (TAVR) with the same types of valves. Results: Computational biomechanical modeling showed calcifications persisting after device expansion, not visible on the CT scan. These calcifications determined geometrical distortion and elliptical deformation of the valve predisposing to hemodynamic disturbances and potential thrombosis. Increased regional stress was also identified in correspondence to the areas of distortion with the associated paravalvular leak. Conclusion: the use of FEA as an adjunct to preoperative imaging might assist patient selection and procedure planning as well as help in the detection and prevention of TAVR complications
A finite element analysis study from 3D CT to predict transcatheter heart valve thrombosis
No full textBackground: Transcatheter aortic valve replacement has proved its safety and effectiveness in intermediate- to high-risk and inoperable patients with severe aortic stenosis. However, despite current guideline recommendations, the use of transcatheter aortic valve replacement (TAVR) to treat severe aortic valve stenosis caused by degenerative leaflet thickening and calcification has not been widely adopted in low-risk patients. This reluctance among both cardiac surgeons and cardiologists could be due to concerns regarding clinical and subclinical valve thrombosis. Stent performance alongside increased aortic root and leaflet stresses in surgical bioprostheses has been correlated with complications such as thrombosis, migration and structural valve degeneration. Materials and Methods: Self-expandable catheter-based aortic valve replacement (Medtronic, Minneapolis, MN, USA), which was received by patients who developed transcatheter heart valve thrombosis, was investigated using high-resolution biomodelling from computed tomography scanning. Calcific blocks were extracted from a 250 CT multi-slice image for precise three-dimensional geometry image reconstruction of the root and leaflets. Results: Distortion of the stent was observed with incomplete cranial and caudal expansion of the device. The incomplete deployment of the stent was evident in the presence of uncrushed refractory bulky calcifications. This resulted in incomplete alignment of the device within the aortic root and potential dislodgment. Conclusion: A Finite Element Analysis (FEA) investigation can anticipate the presence of calcified refractory blocks, the deformation of the prosthetic stent and the development of paravalvular orifice, and it may prevent subclinical and clinical TAVR thrombosis. Here we clearly demonstrate that using exact geometry from high-resolution CT scans in association with FEA allows detection of persistent bulky calcifications that may contribute to thrombus formation after TAVR procedure
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