1,720,961 research outputs found

    Ruimte voor water in de stad: naar een meer geïntegreerde steden- en waterbouwkundige benadering.

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    Dit artikel geeft een overzicht van het lopende interdisciplinaire project van de KU Leuven en de PH Limburg 'Water onderzoek in Vlaams verstedelijkte landschappen'. Met de opkomst van een preventief en gedecentraliseerd waterbeleid in Europa en Vlaanderen de afgelopen jaren, wordt waterbeheer steeds meer synoniem met ruimte voor water creëren. Het vereist dan ook een intense samenwerking tussen de (lang gescheiden) disciplines van hydrologie en ruimtelijke ordening. Hoewel nieuwe beleidsinstrumenten voor een integraal waterbeleid onlangs zijn geïntroduceerd, blijft hun uitvoering in de complexe ruimtelijke en institutionele context van Vlaanderen een uitdaging. Om hieraan tegemoet te komen, onderzoekt dit project, nieuwe ontwikkelingsconcepten en -methodes voor een meer geïntegreerde stedenbouw -en waterbouwkundige benadering. Met de case van Turnhout ter illustratie, focust dit artikel meer specifiek op de mogelijke wisselwerkingen tussen stedelijke drainage-infrastructuur en ruimtelijke vraagstukken in sterk verstedelijkte gebieden

    Ruimte voor water in de stad: naar een meer geïntegreerde steden- en waterbouwkundige benadering.

    No full text
    Dit artikel geeft een overzicht van het lopende interdisciplinaire project van de KU Leuven en de PH Limburg 'Water onderzoek in Vlaams verstedelijkte landschappen'. Met de opkomst van een preventief en gedecentraliseerd waterbeleid in Europa en Vlaanderen de afgelopen jaren, wordt waterbeheer steeds meer synoniem met ruimte voor water creëren. Het vereist dan ook een intense samenwerking tussen de (lang gescheiden) disciplines van hydrologie en ruimtelijke ordening. Hoewel nieuwe beleidsinstrumenten voor een integraal waterbeleid onlangs zijn geïntroduceerd, blijft hun uitvoering in de complexe ruimtelijke en institutionele context van Vlaanderen een uitdaging. Om hieraan tegemoet te komen, onderzoekt dit project, nieuwe ontwikkelingsconcepten en -methodes voor een meer geïntegreerde stedenbouw -en waterbouwkundige benadering. Met de case van Turnhout ter illustratie, focust dit artikel meer specifiek op de mogelijke wisselwerkingen tussen stedelijke drainage-infrastructuur en ruimtelijke vraagstukken in sterk verstedelijkte gebieden

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    De Maakbar

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    De laatste twintig jaar zijn alleen al in Azië 400 nieuwe steden uit de grond gerezen. Eén van de eerste was Chandigarh in India, in de jaren ‘50 ontworpen door Le Corbusier. Modernisten als Le Corbusier geloofden in de maakbaarheid van de maatschappij via architectuur en planning. In zestig jaar tijd evolueerde deze utopische stad van 0,5 naar 1,1 miljoen inwoners. Deze expo toont de evolutie van Chandigarh. Was het een geslaagd experiment? Is maakbaarheid van steden een illusie en hoe anders gebeurt dat hier en nu? De expo slingert van Chandigarh naar de Eurometropool Lille, Kortrijk, Tournai en van Le Corbusier naar reflecties van Belgische architecten.sponsorship: Archipel vzw intercommunale Leiedal Stad Kortrijk Vlaanderen in actie Fabrieken van de toekomst Europees fonds voor regionale ontwikkelingstatus: Publishe

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We 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

    River Re-naturalization in Upstream Flemish Basins: Integrating Urban Design and Hydraulic Modelling

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    The rise in flooding issues seen in Flanders in recent years is attributed to the incremental paving over of the soil and the changes in precipitation schemes wrought by climate change(1). Climate change projections for Europe and Flanders indicate that the discharge into rivers will be significantly higher by 2020(2). For Flanders in particular, which is very densely urbanized, this means that the risk of flooding is going to be much greater if conventional water management practices are continued(3). At the end of the 20th century, urban, water and ecological issues were merged with river management into the concept of Integrated Water Resource Management (IWRM), which aimed to be a sustainable solution to water quantity and quality issues (water production, consumption, drainage and treatment, flood, drought). IWRM is, however, increasingly criticized for its generic formulas and undefined modes of application. Still too few sustainable water management systems have been applied in a co-productive manner in which added values in urban and ecological environments are enhanced. The present climate scenarios and future urbanization challenges are therefore increasingly demanding when it comes to refinement and contextualization, exemplifying how integrated water management could be effectively achieved. In this context, the FWO research project ‘Water Research in Urbanized Flemish Landscapes, Integrating Civil Engineering and Urban Design in Regional Development Projects’ was set up, of which this PhD forms part. The project brings together three topics: firstly, the need for new solutions in Flanders with respect to quantitative (scarcity and flooding) and qualitative (pollution, the ecological role of water) water issues in the perspective of climate change; secondly, the need for new urban design tools that are able to cope with dispersed urbanization and the fragmentation of open spaces that characterizes large parts of the Flemish territory; and finally, the emphasis on co-production in contemporary urban design and with it the emergence discourses in urbanism, such as landscape urbanism, that propagate the structuring capacity of the landscape. The research assumed that the solution and challenge lie in successful integration with urban design and the incorporation of ‘greener’ and ‘softer’ (or non-technical) approaches following the goals of the recent ‘Integrated Water Policy’(4) and ecosystem services research in Flanders.Building on the lessons of McHarg(5), Spirn(6), Corner(7) and many authors in the landscape urbanism discourse, the research postulates that the process of ‘design with nature’ can form the basis of an adapted urban form in which water management plays a structuring role. Consequently, urban design calls for skills that are beyond the reach of architects and urban designers. The hypothesis of my research therefore suggests that the co-production of urban design and hydraulic modelling can together address the current challenges in order to create design strategies that are better adapted to more sustainable water management and urbanism in Flanders. The research assumed that urban design, with an analysis-based, interdisciplinary, cross-scale and projective approach, is a tool for achieving integrated solutions to the issues. The research question concerns how to concretely assume the fundamental role of urban design in water management while simultaneously addressing the spatial development issues raised by growing urbanization. Accordingly, through two case studies in upstream catchment areas of the Scheldt Basin, the research aims to elaborate on and test a form of interdisciplinary methodology in modelling and urban design.In the first chapter of this research, the specificities of the water and urbanization problems in Flanders were mapped, state of the art of existing approaches and instruments were realized, and the most relevant and opportune niches of research within this broad field were defined. These niches were explored through a research-by-design methodology and applied to concrete project cases. In the second and third chapter, the two case studies, formulated urban design strategies for dispersed open territories in middle-sized upstream catchments. The research indicated how modelling, on the one hand, can inform urban design across different scales and, on the other, can quantify urban design (using the appropriate model and model method). The succession of repeated steps in an iterative process led to premeditated compromises for integrated design proposals. In particular, the PhD research tested the potential of integrating river re-naturalization and urban design (extending the winter bed, restoring the floodplain, lowering the dikes) as an upstream strategy to mitigate the effects of climate change on downstream flooding. The methodology was elaborated on through the medium of the atlas, in which three phases of the iterative process were represented: interpretative mapping, projective cartography and modelling. The making of maps or ‘mapping’ has proved to be a useful tool in revealing the relationship between water systems and spatial patterns. Moreover, it has proved to be essential in the act of translating a technical modelling process into the conceptualization of urban design strategies.In conclusion, the modelling of upstream-downstream dynamics demonstrated the importance of urban design on the catchment or the intermediate scales. Moreover, the resulting strategies from the two case studies have indicated that the dispersed upstream landscapes of Flanders have many assets when it comes to responding to water challenges. The comparison of the two cases confirmed the need to integrate hydraulic modelling into the urban design process due to the growing complexity of the water system. In addition, it was concluded that a well-considered balance between engineering practices and re-naturalized rivers in close relation to an adapted urban structure might be assessed for similar basins in Flanders so as to proceed to more sustainable water management. Keywords: Urban design, water management, modelling, climate change, re-naturalization 1 Staes, J., Willems, P., Vrebos, D., Bal, K. Schoelinck, J., (2009) Impact of climate change on river hydrology and ecology: a case study for interdisciplinary policy oriented research, Final Report. Brussels: Belgian Science Policy 2009 (Research Programme: Science for a Sustainable Development), pp. 9-192 IPCC Intergovernmental Panel on Climate Change, Working Group I, (2007), Climate change 2007: the physical science basis, 4th assessment report (AR4), Geneva3 Poelmans, L., Van Rompaey, A., Ntegeka, V., Willems, P., (2011) The relative impact of climate change and urban expansion on peak flows: a case study in central Belgium, Hydrological Processes, 25, Issue 18, John Wiley & Sons, pp. 2846–2858.4 CIW Commission for Integral Water Policy, (2011) Decree concerning the Integral Water Policy, 18 juli 2003, (versie maart 2011).5 McHarg, I.L., (1969), Design with Nature, Natural History Press, Doubleday, Garden City, New York, 2nd ed., John Wiley & Sons, New York, 1994.6 Spirn, A.W., (1984), The Granite Garden Urban Nature and Human Design, Perseus Publishing, United States of America.7 Corner J., (1999), Recovering Landscape as a Critical Cultural Practice, in Corner J. (ed.) Recovering Landscape, Essays in Contemporary Landscape architecture, Princeton Architectural Press, New York, 1999, pp. 1-26.status: Publishe

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

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