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  • 1
    Online Resource
    Online Resource
    Ecosystèmes Innovants. (2021)
    London :ISTE Editions Ltd.,
    Details
    Keywords: Electronic books.
    Description / Table of Contents: La situation actuelle, marquée simultanément par l'Anthropocène, le réchauffement climatique, la numérisation et une intelligence artificielle exponentielle, nous amène vers un changement complet et rapide de la civilisation planétaire et, de facto, vers la refondation des bases de l'économie internationale.Écosystèmes innovants étudie les risques et opportunités auxquels le monde contemporain est confronté. Il analyse, compare et classe les écosystèmes innovants les plus dynamiques de la planète par région et par ville ; il en dégage les caractéristiques clés, communes ou originales, et en tire des apprentissages en termes de culture, management, système et structure pour répondre aux défis actuels et penser les civilisations du futur.
    Type of Medium: Online Resource
    Pages: 1 online resource (318 pages)
    Edition: 1st ed.
    ISBN: 9781784068011
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6802348
    Language: French
    Note: Cover -- Table des matières -- Préface -- Avant-propos. Histoire de notre recherche sur la prospective -- Remerciements -- Introduction. Pourquoi cet ouvrage ? Architecture et posture épistémologique -- Chapitre 1. Rétroprospective : pourquoi un changement de civilisation ? -- Chapitre 2. La création et la communication comme base de la civilisation du futur -- Chapitre 3. La transformation des organisations vers plus d'intelligence collective -- Chapitre 4. Prospective internationale sur les écosystèmes innovants -- Chapitre 5. Panorama mondial des écosystèmes innovants -- Chapitre 6. Apprendre des systèmes innovants mondiaux -- Chapitre 7. Risques systémiques existentiels et émergence de la nouvelle civilisation ? -- Chapitre 8. Les ébauches de la nouvelle civilisation -- Conclusion. Comment donner du sens à notre nouvelle condition humaine ? -- Bibliographie -- Index -- Back Cover.
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  • 2
    Online Resource
    Online Resource
    Géométrie Algébrique Réelle et Formes Quadratiques : Journées S.M.F., Université de Rennes 1, Mai 1981 (1982)
    Berlin, Heidelberg : Springer Berlin Heidelberg
    Details Availability
    Keywords: Geometry, algebraic ; Mathematics ; Algebraic geometry. ; Algebraic Geometry ; Mathematics ; Konferenzschrift 1981 ; Reelle algebraische Geometrie ; Quadratische Form ; Algebraische Geometrie ; Algebraische Geometrie ; Quadratische Form
    Description / Table of Contents: Valuations and real places in the theory of formally real fields -- An introduction to Nash functions -- Real valuation rings and ideals -- Variantes du Nullstellensatz réel et anneaux formellement réels -- Ensembles semi-algebriques -- The real holomorphy ring and sums of 2n-th powers -- On certain topological spaces admitting strongly coherent real algebraic structure -- Remarks and counterexamples in the theory of real algebraic vector bundles and cycles -- Topology of real analytic sets — Some open problems -- The divisor class groups of some rings of global real analytic, Nash or rational regular functions -- Real spectra and distributions of signatures -- Transversal zeros and positive semidefinite forms -- Zur Theorie der semialgebraischen Wege und Intervalle über einem reell abgeschlossenen Körper -- Subordinate structure sheaves -- The extension theorem for Nash functions -- Separation des composantes connexes reelles dans le cas des varietes projectives -- On real one-dimensional cycles -- Sur l’homologie des surfaces algèbriques réelles -- Etude des coupures dans les groupes et corps ordonnes -- Faisceau structural sur le spectre réel et fonctions de Nash -- Real holomorphy rings in real algebraic geometry -- A bound on the order of H n?1 (a) (X, ZZ / 2) on a real algebraic variety -- Le probleme d’algebrisation des polyedres est local.
    Type of Medium: Online Resource
    Pages: Online-Ressource (XII, 460 p, online resource)
    ISBN: 9783540395485 , 9783540119593
    Series Statement: Lecture Notes in Mathematics 959
    URL: https://doi.org/10.1007/BFb0062247
    URL: http://dx.doi.org/10.1007/BFb0062247
    URL: https://swbplus.bsz-bw.de/bsz009095357cov.jpg
    DOI: 10.1007/BFb0062247
    RVK:
    SI 850
    Language: English , French
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  • 3
    Online Resource
    Online Resource
    Real Algebraic Geometry : Proceedings of the Conference held in Rennes, France, June 24–28, 1991 (1992)
    Berlin, Heidelberg : Springer Berlin Heidelberg
    Details Availability
    Keywords: Geometry, algebraic ; Mathematics ; Algebraic geometry. ; Algebraic Geometry ; Mathematics ; Konferenzschrift 1991 ; Reelle algebraische Geometrie
    Description / Table of Contents: Ten years after the first Rennes international meeting on real algebraic geometry, the second one looked at the developments in the subject during the intervening decade - see the 6 survey papers listed below. Further contributions from the participants on recent research covered real algebra and geometry, topology of real algebraic varieties and 16thHilbert problem, classical algebraic geometry, techniques in real algebraic geometry, algorithms in real algebraic geometry, semialgebraic geometry, real analytic geometry. CONTENTS: Survey papers: M. Knebusch: Semialgebraic topology in the last ten years.- R. Parimala: Algebraic and topological invariants of real algebraic varieties.- Polotovskii, G.M.: On the classification of decomposing plane algebraic curves.- Scheiderer, C.: Real algebra and its applications to geometry in the last ten years: some major developments and results.- Shustin, E.L.: Topology of real plane algebraic curves.- Silhol, R.: Moduli problems in real algebraic geometry. Further contributions by: S. Akbulut and H. King; C. Andradas and J. Ruiz; A. Borobia; L. Br|cker; G.W. Brumfield; A. Castilla; Z. Charzynski and P. Skibinski; M. Coste and M. Reguiat; A. Degtyarev; Z. Denkowska; J.-P. Francoise and F. Ronga; J.M. Gamboa and C. Ueno; D. Gondard- Cozette; I.V. Itenberg; P. Jaworski; A. Korchagin; T. Krasinksi and S. Spodzieja; K. Kurdyka; H. Lombardi; M. Marshall and L. Walter; V.F. Mazurovskii; G. Mikhalkin; T. Mostowski and E. Rannou; E.I. Shustin; N. Vorobjov
    Type of Medium: Online Resource
    Pages: Online-Ressource (VIII, 420 p, online resource)
    ISBN: 9783540473374 , 9783540559924
    Series Statement: Lecture Notes in Mathematics 1524
    URL: https://doi.org/10.1007/BFb0084605
    URL: http://dx.doi.org/10.1007/BFb0084605
    URL: https://swbplus.bsz-bw.de/bsz404658717cov.jpg
    URL: https://zbmath.org/?q=an:0756.00007
    DOI: 10.1007/BFb0084605
    RVK:
    SI 850
    Language: English
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of cadmium stress on periphytic diatom communities in indoor artificial streams (2003)
    Oxford, UK : Blackwell Science Ltd
    Freshwater biology 48 (2003), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SUMMARY 1. Two experiments were performed with periphytic diatoms originating from the River Lot (France) and allowed to grow on clean substrata within indoor artificial streams. Three cadmium (Cd) levels (control, low Cd=10 μg L−1 and high Cd=100 μg L−1) were used to test the effects of Cd on (i) the settlement and development of diatom communities (Experiment 1, 4 weeks Cd exposure) and (ii) predeveloped communities grown over a 2-week period without contamination (Experiment 2, 2 weeks Cd exposure).2. Experiment 1 revealed that growth and taxonomic composition of diatom communities clearly differed with Cd exposure. Biofilms were more adpressed to substrata under low Cd concentration, and were thinner and patchy under high Cd concentration.3. Exposure of developed diatom communities (Experiment 2) to Cd revealed only minor variations in taxonomic composition, possibly linked to the protective role of the developed organic matrix against metal stress.4. These results support the validity of periphytic diatom communities as indicators of metal pollution, although significant structural changes would take longer within developed communities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2427.2003.00980.x
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  • 5
    Electronic Resource
    Electronic Resource
    Nash triviality in families of Nash manifolds (1992)
    Springer
    Inventiones mathematicae 108 (1992), S. 349-368 
    Details
    ISSN: 1432-1297
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02100609
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  • 6
    Electronic Resource
    Electronic Resource
    River ecosystem modelling: application of the PROSE model to the Seine river (France) (1998)
    Springer
    Hydrobiologia 373-374 (1998), S. 27-45 
    Details
    ISSN: 1573-5117
    Keywords: Seine river ; ecological modelling ; validation ; anthropic impacts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The Seine river crosses the most densely populated and industrialized area of France, Paris (16 million inhabitants), surrounded by fertile land with intensive agriculture. In the framework of a CNRS (Scientific Research National Center) research project, computer programs have been designed to tackle problems related to eutrophication, non-point pollution and the impact of sewage during dry or wet periods (urban runof and sewage network overflow). The PROSE software has been specially designed to simulate the behaviour of the most disturbed stretches of the Seine ecosystem on the last 300 kilometers of the river, upstream of the estuarine area. The 1-D hydraulic sub-model of PROSE is based on a finite difference solution of Saint-Venant equations solved with the Preissman scheme. It simulates steady state situations as well as highly transient situations such as fast changes in river discharge during rainy periods or dam motions. The biological sub-model is based on the RIVE model, describing the major processes in a river ecosystem: primary production, heterotrophic bacterial activity and organic matter decomposition, major nutrients species (nitrogen, phosphorus), nitrifying activity and oxygen balance. Water column and sediment variables are simulated. Most of the parameters have been estimated during laboratory experiments or field studies. Different situations observed between 1989 and 1991 allowed a detailed validation of the model. The model was then used to explore the reaction of the ecosystem (particularly its oxygen status) to changes in physical constrains (discharge, reoxygenation at dams) or in biological processes (release of microorganisms accompanying waste water discharge).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017045522336
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