Corrélation de mesures sonar avec un modèle numérique de terrain

Ce papier présente une méthode de localisation d'engins sous-marins par mise en correspondance d'un banc de mesures bathymétriques délivrées par un sonar multifaisceau avec un modèle numérique de terrain (MNT). Cette mise en correspondance est réalisée par l'utilisation d'une extension des formules classiques de corrélation prenant en compte le fait que les données sonar ne sont pas échantillonnées de façon régulière dans l'espace de représentation du MNT. Le couplage de cet algorithme avec un estimateur de mouvement permet de réduire la dimension de l'espace de recherche. Les résultats obtenus avec un modèle réel de relief sous-marin illustrent les performances des algorithmes présentés

OMNIBOT - De la Division Omnidirectionnelle à la Commande de Robot Mobile

National audienceLe projet Omnibot a pour principaux objectifs, la conception et l'optimisation d'une boucle perception-commande, en partant du composant (imageur) jusqu'à la navigation du robot. Cette approche originale permet ainsi la création d'une nouvelle génération de capteurs pour la vision omnidirectionnelle tout en gardant une interaction constante avec des applications réelles. L'objectif final de ce projet est de proposer un démonstrateur mettant en œuvre un robot mobile command par un asservissement visuel omndirectionnel. Ce projet fait actuellement l'objet des quatre parties qui sont développées ci après

Original Ballet Russe

De cada obra s'ha digitalitzat un programa sencer. De la resta s'han digitalitzat les parts que són diferents.Director general Wassily de BasilEmpresa José F. ArquerLas Sílfides de Frédéric Chopin; Paganini de Serguei Rakhmaninov; Graduation Ball de Johann Straus

Connectivity elements and mitigation measures in policy-relevant soil erosion models: A survey across Europe

The current use of soil erosion models in Europe was investigated through an exploratory survey of 46 model applications covering 18 European countries. This revealed novel information on erosion model applications, their parameterisation, incorporation of landscape elements and mitigation measures with implications for connectivity and their use in decision-making in Europe. The model application predictions were applied at national, regional, catchment or field scale. The majority of model applications used the USLE or versions thereof, but a range of semi-empirical, decision-tree and process-based models were also used. The majority of model applications were used for policy relevant purposes such as erosion risk assessment or mitigation measure implementation at a range of spatial scales. The analysis identified an evident prevalence towards the use of national or regional data sets and a highly varying parameterisation of model applications. Landscape elements and mitigation measures with effects on connectivity were implemented in most model applications, but not with a focus on modelling connectivity within the landscape. Altogether, the results demonstrate a need for improving connectivity modelling in diverse agricultural landscapes across multiple scales. Models should be chosen dependent on their ability to reflect erosion risk at different spatial scales. Albeit, harmonisation of data sets, parameterisation procedures and validation approaches is needed for certain modelling scenarios to ensure comparability of soil erosion risk assessment and suitable mitigation practices. Furthermore, we recommend that policy-relevant erosion risk maps should be verified by empirical data and thresholds derived from erosion risk maps should be adapted to regional conditions when used for policy guidelines. Hence, comparability, comprehensibility and regional adaptation are essential qualities of policy-relevant erosion maps

Comiat de la cèlebre companyia de Basil's Ballets Russos de Montecarlo

De cada obra s'ha digitalitzat un programa sencer. De la resta s'han digitalitzat les parts que són diferents.Direcció artística Empresa Joan Mestres CalvetLes Sylphides de Frédéric Chopin ; Les Noces d'Aurora de Piotr Ilitx Txaikovski ; L'Espectre de la Rosa de Carl Maria von Weber ; El Bell Danubi de Johann Straus

Otx2 Gene Deletion in Adult Mouse Retina Induces Rapid RPE Dystrophy and Slow Photoreceptor Degeneration

International audienceBACKGROUND: Many developmental genes are still active in specific tissues after development is completed. This is the case for the homeobox gene Otx2, an essential actor of forebrain and head development. In adult mouse, Otx2 is strongly expressed in the retina. Mutations of this gene in humans have been linked to severe ocular malformation and retinal diseases. It is, therefore, important to explore its post-developmental functions. In the mature retina, Otx2 is expressed in three cell types: bipolar and photoreceptor cells that belong to the neural retina and retinal pigment epithelium (RPE), a neighbour structure that forms a tightly interdependent functional unit together with photoreceptor cells. METHODOLOGY/PRINCIPAL FINDINGS: Conditional self-knockout was used to address the late functions of Otx2 gene in adult mice. This strategy is based on the combination of a knock-in CreERT2 allele and a floxed allele at the Otx2 locus. Time-controlled injection of tamoxifen activates the recombinase only in Otx2 expressing cells, resulting in selective ablation of the gene in its entire domain of expression. In the adult retina, loss of Otx2 protein causes slow degeneration of photoreceptor cells. By contrast, dramatic changes of RPE activity rapidly occur, which may represent a primary cause of photoreceptor disease. CONCLUSIONS: Our novel mouse model uncovers new Otx2 functions in adult retina. We show that this transcription factor is necessary for long-term maintenance of photoreceptors, likely through the control of specific activities of the RPE

Concert de l'Orquestra Ciutat de Barcelona amb Bruno Gelber, dirigits per Yuval Zaliouk

Programa dels quatre concerts que van dur a terme l'Orquestra Ciutat de Barcelona amb el pianista B. Gelber i amb Y. Zaliouk al capdavant, I la New Philharmonia Orchestra de Londres, sota la direcció de Z. Mácal amb D. Bradley com a concertino. Al primer concert de l'Orquestra Ciutat de Barcelona es va interpretar l'obertura "Oberon" de C. M. v. Weber, el "Concert núm. 2 per a piano i orquestra en si bemoll major, Op. 19" de L. v. Beethoven, el "Concert núm. 1 per a piano i orquestra en sol menor, Op. 25" de F. Mendelssohn i les "Danses de Galanta" de Z. Kodaly. Durant el segon concert van tocar l'obertura de "Le nozze di Figaro" i el "Concert núm. 9 per a piano i orquestra en mi bemoll major, k.271" de W. A. Mozart, el "Concert núm. 1 per a piano i orquestra en mi menor, Op. 11" de F. Chopin i la "Simfonia núm. 4 en la menor - Italiana" de F. MendelssohnDurant el seu primer concert, la New Philharmonia Orchestra va interpretar "Don Juan" de R. Strauss, la "Simfonia núm. 4" de R. Schumann, "Quadres d'una exposició" de M. Mussorgski amb orquestració de M. Ravel. Al segon concert van tocar "Egmont" de L. v. Beethoven, la "Simfonia núm. 91" de F. J. Haydn i la "Simfonia núm. 5" de P. I. TxaikovskiOrquestra Ciutat de Barcelona dirigida per Y. Zaliouk i New Philharmonia Orchestra de Londres dirigida per Z. Máca

Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good