References of "Unpublished conference"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others     Showing results 1 to 100 of 12876 1 2 3 4 5 6     Personnalité antisociale et psychopathologieEnglebert, Jérôme Conference (2015, July 14)Notre communication a pour objectif de confronter les critères de la personnalité antisociale du DSM-IV et du DSM-5 à une réflexion psychopathologique. Nous commencerons par une analyse des différentes ... [more ▼]Notre communication a pour objectif de confronter les critères de la personnalité antisociale du DSM-IV et du DSM-5 à une réflexion psychopathologique. Nous commencerons par une analyse des différentes contradictions propres au diagnostic qui nous mèneront à l’identification du critère « primaire » de cette entité qui est l’« incapacité à se conformer aux lois et normes sociales ». Nous confronterons ensuite à des situations cliniques l’hétérogénéité des profils pouvant répondre à ce diagnostic. Nos constats nous conduiront à mettre en doute la validité apparente du concept de personnalité antisociale, puisqu’il recouvre des modes de fonctionnement psychologique variés. La valeur discriminative faible, en matière de fonctionnement psychologique, suggère que c’est une dimension autre que psychopathologique qui organise ce diagnostic. Dénuée de toute attention pour les modes d’interactions, pour le vécu émotionnel et pour les états de subjectivité, la notion de personnalité antisociale ne porte pas d’intérêt à l’individu qu’elle catégorise, mais bien à l’acte délinquant commis par ce dernier. Nous conclurons sur le constat de l’absence de dimension psychopathologique de la personnalité antisociale, qui se révèle être un diagnostic principalement criminologique, à l’inverse des fondements de l’éthique psychopathologique. [less ▲]Detailed reference viewed: 14 (0 ULg) Effect of stress path on the miniaturizatio size effect for nickel polycrystalsKeller, Clement; Hug, Eric; Duchene, Laurent et alConference (2015, January 04)The mechanical behavior of mettalic materials deeply depends on the size of samples. For specimen dimensions de creasing from a few millimeters to a few micrometers, the general observed trend is a ... [more ▼]The mechanical behavior of mettalic materials deeply depends on the size of samples. For specimen dimensions de creasing from a few millimeters to a few micrometers, the general observed trend is a softening of the mechanical behavior in tension which affects the stress level and the strain hardening. This effect is triggered by the derease of the number of grains across the thickness ( also called thickness"t" over grain size "d" ratio). The objective of this work is to provide new experimental results in order to analyse the miniaturization size effects for various stress paths without strain gradients across the thickness of the samples. To this aim, experimental tensil tests, large tensile tests and shear tests have been performed on Ni sheets ( 0.5mm) with various grain sizes ensuring different t/d ratios. Results show that the miniaturization softening is affected by triaxiality, the larger is this parameter, the lower is the mechanicval softening. These features seem to be linked to surface effects which are larger for low triaxiality stress paths. Attempts of numerical simulations using strain gradient crystal plasticity model are also performed to confirm the role played by surface effects. [less ▲]Detailed reference viewed: 13 (1 ULg) Impact of light and melanopsin on human cognitive brain functionVandewalle, Gilles Conference (2015)Detailed reference viewed: 11 (0 ULg) La phénoménologie française dans la Première Guerre mondiale : la fabrique sartrienne de la philosophie française contemporaineCormann, Grégory Conference (2014, December)Detailed reference viewed: 11 (2 ULg) Stress et burnout des infirmiers et physiciens belges de radiothérapie : quel est le rôle du travail émotionnel et du support organisationnel perçu ?Laurent, Julie ; BRAGARD, Isabelle ; COUCKE, Philippe et alConference (2014, December)Detailed reference viewed: 18 (7 ULg) Foucault et Deleuze et Sami-Ali : postmodernité et psychothérapie.Englebert, Jérôme Conference (2014, November 22)Detailed reference viewed: 12 (2 ULg) The Airline Container Loading Problem with Pickup and DeliveryLurkin, Virginie ; Schyns, Michael Conference (2014, November 09)We address the problem of allocating containers into predefined positions of a carrier, in this case aircraft, under several realistic structural and safety constraints. The originality of our approach is ... [more ▼]We address the problem of allocating containers into predefined positions of a carrier, in this case aircraft, under several realistic structural and safety constraints. The originality of our approach is to allow multi-trips with pickup and delivery at some intermediate locations. The objective is to minimize the economic and environmental costs including the impact of the intermediate operations. We resort to an integer linear model. Numerical experiments have been performed using a standard B\&C library. Heuristics are developed to speed up the process. [less ▲]Detailed reference viewed: 7 (3 ULg) Journalisme économique et discours patronal en Europe. Les « économistes médiatiques » : quelle(s) identité(s) pour quelle légitimité ? (Belgique, France, Grande-Bretagne)Geuens, Geoffrey Conference (2014, November)Detailed reference viewed: 33 (1 ULg) UTILISATION DES RESIDUS DE LAVAGE DES GRANULATS DE CARRIERES DANS L’ELABORATION DE PIECES CERAMIQUES (REGION DE TAMAZOUZT, MAROC).El Boudour El Idrissi, Hicham ; Daoudi, Lahcen; El Ouahabi, Meriam et alConference (2014, October 27)Le site potier de Tamazouzt est situé à 40 km au Sud-Est de la ville de Marrakech. La production est sous forme de poterie décorative d’ustensiles rustiques. La matière première utilisée dans ... [more ▼]Le site potier de Tamazouzt est situé à 40 km au Sud-Est de la ville de Marrakech. La production est sous forme de poterie décorative d’ustensiles rustiques. La matière première utilisée dans l’élaboration de ces produits est issue de résidus de lavage des carrières de granulats exploités le long des oueds. En plus de la qualité des produits et des rendements élevés, ce site donne un bon exemple de valorisation des résidus de lavage qui causent des problèmes pour l’environnement et pour les industriels. Nous avons caractérisé cette matière première afin d’en faire la promotion et d’encourager l’exploitation de tels matériaux dans le domaine de la céramique à l’échelle globale. Les résultats des analyses montrent que la pâte est constituée de 62% d’argiles, 23% de limons et 15% de sables ; l’indice de plasticité est de l’ordre de 16. Pour 27% d’humidité, le degré de retrait au séchage ne dépasse pas 6%. La minéralogie indique la présence de quartz (32%), plagioclase (20%), feldspaths potassiques (10%), calcite (3%) et argile (31%). Les minéraux argileux sont constitués d’illite (16%), de chlorite (7%), de kaolinite (4%) et de vermiculite (4%). La teneur en matière organique est de 4%. La composition chimique est surtout silico-alumineuse (64% de SiO2, 17% d’Al2O3). Les autres éléments majeurs dont la teneur est significative (> 1%) sont : Fe2O3 (8%), MgO (4%), K2O (3%), CaO (3%), Na2O (2%). Les pièces cuites à 1050°C présentent 2% de retrait, 13% de porosité à l’eau, la résistance mécanique à la compression et à la flexion est respectivement de 63 et 20 Mpa. L’analyse DRX des pièces cuites à 1050°C a montré l’apparition de géhlénite, anorthite, diopside et d’hématite. Ces résultats indiquent qu’en plus de l’utilisation locale dans la poterie décorative ces argiles pourraient être valorisées comme matériaux de construction vue leur caractère isolant (bonne porosité), résistance (bon comportement mécanique) et leur couleur rouge (présence de l’hématite). [less ▲]Detailed reference viewed: 29 (11 ULg) The Airline Container Loading Problem with Pickup and DeliveryLurkin, Virginie ; Schyns, Michael Conference (2014, October 19)The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at ... [more ▼]The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at intermediate airports, this problem is simultaneously a weight and balance problem and a sequencing problem. Our objective is to minimize fuel and handling operations costs. This problem is shown to be NP-hard. We resort to a mixed integer linear program. On the basis of a professional partner's real-world data, TNT Airways, we perform numerical experiments using a standard B&C library. This approach yields better solutions than traditional manual planning, which results in substantial cost savings. [less ▲]Detailed reference viewed: 10 (4 ULg) Recent advances and improvements in computerized adaptive testing with the R package catRBarrada, Juan Ramon; Magis, David Conference (2014, October 08)The purpose of this talk is to present recent advances and developments of the R package catR. This package allows for random generation of response patterns under computerized adaptive testing (CAT) and ... [more ▼]The purpose of this talk is to present recent advances and developments of the R package catR. This package allows for random generation of response patterns under computerized adaptive testing (CAT) and holds various options to select the first items, estimate ability, select the next item, stop the test and return final results. Two main improvements were realized. First, several rules for next item selection were added, among others, Kullback- Leibler, progressive and proportional methods. Second, catR was limited to dichotomous IRT models so far. The most recent update allows now for several polytomous IRT models, such as partial and generalized partial credit model, graded and modified graded response models, rating scale model, and nominal response model. All improvements will be shortly presented, both from a theoretical point of view and in terms of practical implementation in catR. If possible, several illustrative examples will be displayed in a short live demonstration of catR. [less ▲]Detailed reference viewed: 18 (0 ULg) Knowledge transfer from Belgian government to medical doctorsMORTELMANS, Katrien; REMMEN, Roy; BERKEIN, Philip et alConference (2014, October 02)Detailed reference viewed: 13 (0 ULg) Mesozoic marine crises and ichthyosaur history: a non-direct relationshipFischer, Valentin Conference (2014, October)Marine ecosystems underwent several profound crises throughout the Mesozoic; many of them are correlated with supra-regional to worldwide anoxic events. The impact of these crises is relatively well ... [more ▼]Marine ecosystems underwent several profound crises throughout the Mesozoic; many of them are correlated with supra-regional to worldwide anoxic events. The impact of these crises is relatively well understood among animals occupying lower trophic levels but their influence on top predators of that time, fishes and marine reptiles, remains unclear. The fossil record of marine reptiles is of fluctuating quality but thoroughly revised taxonomic and phylogenetic frameworks now allow assessment of the influence of past climatic and oceanic changes on these top predators, by quantifying their cladogenesis and extinction rates across selected intervals. Here, I focus on ichthyosaurs, a successful clade of marine reptiles that colonized marine ecosystems during most of the Mesozoic. The ichthyosaur record indicates relatively few severe turnovers and a non direct relationship with environmental drivers, notably anoxic events. New fossils from France reveal the middle-late Norian extinctions did not eradicate the clade of whale-sized shastasaurid ichthyosaurs; similarly, the severe early Toarcian anoxic event, the end-Jurassic climate changes and several Cretaceous anoxic events did not impacted ichthyosaurs significantly, at least at the suprageneric level. On the other hand, severe turnovers or extinctions occurred during the latest Triassic and the Cenomanian and are coincident with a number of profound environmental and biotic changes. This indicates that unique drivers fail to explain the turnover patterns in ichthyosaur evolutionary history. Notably, oceanic anoxic events only impacted ichthyosaurs during the end-Cenomanian and did so during a period of intense climatic and biological upheavals. These major crises in ichthyosaur history are seemingly protracted over several million years and are probably best explained by a conjunction of causes. This is part of a wider project that will incorporate data from other contemporaneous groups to shed a new light on the general turnover patterns among marine top predators of the Mesozoic and the influence of ancient environmental changes in shaping their biodiversity. [less ▲]Detailed reference viewed: 6 (0 ULg) Investigation of shear stress evolution during neotissue growth in a perfusion bioreactor using 3d multiphysics modelingGuyot, Yann ; Papantoniou, Ioannis; Schrooten, Jan et alConference (2014, October)Detailed reference viewed: 20 (1 ULg) Investigating local Ca2+ concentration in calcium phosphate scaffolds for bone tissue engineering applicationsManhas, Varun ; Guyot, Yann ; Chai, Yoke C et alConference (2014, October)Detailed reference viewed: 18 (7 ULg) Biorefining in Wallonia – Expertise of the Laboratory of Biological and Industrial ChemistryRichel, Aurore Conference (2014, October)Detailed reference viewed: 8 (3 ULg) Inter-professional cooperation between family, occupational and social insurance physicians in managing long-term sickness absenceMairiaux, Philippe ; Vanmeerbeek, Marc ; Schippers, Nathalie et alConference (2014, September 30)Background In the Belgian health system, sickness absence (SA) management implies complementary roles for general practitioners (GPs), social insurance physicians (SIPs) and occupational physicians (OPs ... [more ▼]Background In the Belgian health system, sickness absence (SA) management implies complementary roles for general practitioners (GPs), social insurance physicians (SIPs) and occupational physicians (OPs): GPs deliver sick notes and treatment, SIPs control SA benefits and OPs strive to adapt work environments to workers’ remaining capacities. In practice however, there is little cooperation between the three physicians. In 2009, the Ministry of Employment commissioned a study to identify GP-OP-SIP cooperation channels in order to prevent long-term work disability. Methods The study involved two phases. 1) Researchers from the three groups agreed on 15 proposals to enhance cooperation: to establish a formal contact between GP, SIP and OP for patients with > 3 months SA (n=3) ; SIP decision to end SA benefit to be forwarded to the GP (n=2) ; work-related information to be provided by the OP to GP and/or SIP (n=4); website giving contact data of GPs, SIPs, and OPs (n=2) ; initial and continuous education focusing on inter-physician cooperation (n=3); electronic data exchange when dealing with long-term SA (n=1). 2) A Delphi study was conducted in 2012 to validate these proposals: 61 experts representing professional groups of physicians (GP, SIP, OP), patients, government, employers and labor unions were asked to participate. A 18-items questionnaire (the 15 proposals and 3 open questions) was used in a 2-round Delphi study. Proposals were accepted if 80% of experts agreed. For drafting the final proposals, the research team relied on a multidisciplinary expert group. Results Participation rate was 77% (47/61 experts) in round 1 and 7 out of the 15 proposals were accepted. During round 2, participation rate was 94% (44/47); 2 of the remaining proposals reached agreement level. Public authorities were thus advised to invest in a) promotion of pre-return to work visit with the OP for sick-listed patients; b) a website with OPs contact data; c) joint guidelines for return to work guidance; d) joint training of the 3 physician groups; 5) methods ensuring safe electronic information exchange. Conclusions The need for inter-physician cooperation in disability management may exceed individual goodwill and should best be organised by public authorities. The current study may be a first step in this process. [less ▲]Detailed reference viewed: 31 (7 ULg) Il successo come variabile sociolinguistica: alcuni casi di studio sugli italiani dellla provincia liegeseMoreno, Paola Conference (2014, September 27)Detailed reference viewed: 7 (0 ULg) Detection of non-concave and non-increasing spectra: Snu spaces revisited with wavelet leadersEsser, Céline Conference (2014, September 26)Our objective is to study the pointwise regularity of functions via their multifractal spectrum. Computing the multifractal spectrum of a function using directly its definition is an unattainable goal in ... [more ▼]Our objective is to study the pointwise regularity of functions via their multifractal spectrum. Computing the multifractal spectrum of a function using directly its definition is an unattainable goal in most of the practical cases, but there exist heuristic methods, called multifractal formalisms, which allow to estimate this spectrum and which give satisfactory results in many situations. The Frisch-Parisi conjecture, classically used and based on Besov spaces, presents two disadvantages: it can only hold for spectra that are concave and it can only yield the increasing part of spectra. Concerning the first problem, the use of S spaces allows to deal with non-concave increasing spectra. Concerning the second problem, a generalization of the Frisch-Parisi conjecture obtained by replacing the role played by wavelet coefficients by wavelet leaders allows to recover the decreasing part of concave spectra. We present a combination of both approaches to define a new formalism derived from large deviations based on statistics of wavelet leaders. We also present the associated function space. [less ▲]Detailed reference viewed: 4 (0 ULg) "L'événement du concept dans la pratique clinique", questions à Jérôme Englebert, Psychopathologie de l'homme en situation. Le corps du détenu dans l'univers carcéralCormann, Grégory Conference (2014, September 26)Detailed reference viewed: 20 (2 ULg) Genericity and classes of ultradifferentiable functionsEsser, Céline Conference (2014, September 26)As surprising as it may seem, there exist infinitely differentiable functions which are nowhere analytic. When such an unexpected object is found, a natural question is to ask whether many similar ones ... [more ▼]As surprising as it may seem, there exist infinitely differentiable functions which are nowhere analytic. When such an unexpected object is found, a natural question is to ask whether many similar ones may exist. A classical technique is to use the Baire category theorem and the notion of residuality. This notion is purely topological and does not give any information about the measure of the set of objects satisfying such a property. In this purpose, the notion of prevalence has been introduced. Moreover, one could also wonder whether large algebraic structures of such objects can be constructed. This question is formalized by the notion of lineability. The first objective of this talk is to go further into the study of nowhere analytic functions. It is known that the set of nowhere analytic functions is residual and lineable in C^infty([0, 1]). We prove that the set of nowhere analytic functions is also prevalent in this space. Those results of genericity are then generalized using Gevrey classes, which can be seen as intermediate between the space of analytic functions and the space of infinitely differentiable functions. We also study how far such results of genericity could be extended to spaces of ultradifferentiable functions, defined using weight sequences. [less ▲]Detailed reference viewed: 5 (0 ULg) Thymic and immunological phenotype of Growth Hormone Releasing Hormone (GHRH)-deficient mice in basal conditionsBodart, Gwennaëlle ; Conrad, Cédric ; Goffinet, Lindsay et alConference (2014, September 26)Detailed reference viewed: 7 (1 ULg) Devant le forum de la perception interne. Sur les objets d’ordre supérieur IIIZincq, Aurélien Conference (2014, September 25)Detailed reference viewed: 23 (2 ULg) Photosynthetic adaptations during cultivation of Scenedesmus in open thin-layer cascade system in Liègede Marchin, Thomas ; Erpicum, Michel ; Franck, Fabrice Conference (2014, September 24)Detailed reference viewed: 15 (4 ULg) Odour measurement networks: e-noses and emission dataRomain, Anne-Claude Conference (2014, September 23)Detailed reference viewed: 5 (1 ULg) Objets réels et objets idéaux. Sur les objets d’ordre supérieur IIZincq, Aurélien Conference (2014, September 23)Detailed reference viewed: 16 (1 ULg) De l’importance des échelles dyadiques dans les espaces SnuKleyntssens, Thomas ; Nicolay, Samuel Conference (2014, September 23)Le but de l’analyse multifractale est de fournir une méthode permettant d’approximer le spectre de singularités d’une fonction. En 1985, Frisch et Parisi ont proposé un premier formalisme. D'autres ... [more ▼]Le but de l’analyse multifractale est de fournir une méthode permettant d’approximer le spectre de singularités d’une fonction. En 1985, Frisch et Parisi ont proposé un premier formalisme. D'autres formalismes, basés sur les coefficients d'ondelettes, ont été introduits (ex WLM). Cependant, de part leurs natures, ces méthodes ne peuvent détecter que des spectres concaves. En 2004, Jaffard introduit les espaces Snu pour palier à ce problème. Ces espaces sont inclus dans une intersection d'espaces de Besov. Dans cet exposé, je présente une généralisation des espaces Snu. Ceux-ci sont mis en relation avec les espaces de Besov généralisés et une mise en pratique est présentée. [less ▲]Detailed reference viewed: 7 (1 ULg) Fonction de Riemann généraliséeSimons, Laurent ; Bastin, Françoise ; Nicolay, Samuel Conference (2014, September 22)Dans cet exposé, nous étudions la régularité de la fonction de Riemann généralisée~$R_{\alpha,\beta}$ (avec $\alpha>1$ et $\beta>0$) définie par $R_{\alpha,\beta}(x)=\sum_{n=1}^{+\infty}\frac{\sin(\pi n ... [more ▼]Dans cet exposé, nous étudions la régularité de la fonction de Riemann généralisée~R_{\alpha,\beta} (avec \alpha>1 et \beta>0) définie par \[ R_{\alpha,\beta}(x)=\sum_{n=1}^{+\infty}\frac{\sin(\pi n^\beta x)}{n^\alpha},\quad x\in\R.$ En particulier, nous déterminons son exposant de Hölder uniforme. Pour terminer, nous analysons le comportement de~$R_{\alpha,\beta}$ lorsque le paramètre $\alpha$ ou $\beta$ tend vers l'infini. Cet exposé est basé sur un travail en collaboration avec F. Bastin et S. Nicolay. [less ▲]Detailed reference viewed: 8 (3 ULg) Complexions et relations. Sur les objets d’ordre supérieur IZincq, Aurélien Conference (2014, September 22)Detailed reference viewed: 13 (1 ULg) Science and Technology into Sports: The Flemish Sports CompassVan Oudheusden, Michiel Conference (2014, September 19)Sports are increasingly shaped by science and technology. Sportspersons now routinely operate in an environment consisting of devices, data flows, laboratories, and scientists. While governments, research ... [more ▼]Sports are increasingly shaped by science and technology. Sportspersons now routinely operate in an environment consisting of devices, data flows, laboratories, and scientists. While governments, research industries, and many scientists across the world promote the integration of science and technology into sports as a means of inspiring innovation in sports, how this integration is achieved has not been systematically investigated. To remedy this shortcoming in science and technology studies (STS) and to grasp how science, technology, and sports are mutually attuned in everyday situations, this paper examines a sociotechnical device developed by scientists in Flanders (Belgium) popularly known as the ‘sports compass’ (sportkinelab.be/sportkompas). As the sports compass is designed to detect and develop sports talent in young children through standardized physical trials, it is used in the Flemish sports field. Drawing on ethnographic methods and on preliminary interviews with sports compass developers and users (scientists, children, parents), the paper argues that the compass’s solidity as a scientific conduit for talent is disrupted by the multiple social aims it serves (e.g. sports participation, striving for excellence) and the multiple expectations it elicits. Accordingly, multiple solidarities and shifting alliances can be discerned between technology developments and uses, devices and humans, and between research institutes, schools, and sports organizations. The paper’s findings serve to open a discussion both on the meaning and viability of talent detection among children and sportspersons, and on sports and innovation policies designed to render sports more scientific and technological. [less ▲]Detailed reference viewed: 6 (0 ULg) Explicit similarities and expected variabilities: the Initial Upper Paleolithic in Northeast AsiaZwyns, N.; Teyssandier, N.; Izuho, M. et alConference (2014, September 19)Detailed reference viewed: 7 (0 ULg) Intervention lors du débat autour du livre de Benoît Timmermans, Histoire philosophique de l’algèbre moderne. Les origines romantiques de la pensée abstraite. (Paris, Classiques Garnier, coll. « Histoire et philosophie des sciences », 2012).Zincq, Aurélien Conference (2014, September 19)Detailed reference viewed: 21 (5 ULg) La réception de la littérature humaniste italienne en Brabant au XVe siècleAdam, Renaud Conference (2014, September 19)Parmi les nombreuses pistes qui permettent de mesurer la pénétration de la Renaissance italienne dans les Pays-Bas, figure l’étude de la présence d’ouvrages rédigés par des humanistes italiens dans des ... [more ▼]Parmi les nombreuses pistes qui permettent de mesurer la pénétration de la Renaissance italienne dans les Pays-Bas, figure l’étude de la présence d’ouvrages rédigés par des humanistes italiens dans des bibliothèques, qu’elles soient privées ou institutionnelles. L’espace brabançon du XVe siècle, eu égard à sa richesse documentaire, a été retenu comme précieux indicateur témoignant de l’impact de ce mouvement culturel qu'est l'humanisme. [less ▲]Detailed reference viewed: 15 (2 ULg) When morphometrics meets genetics: the case of the hazel dormouse, Muscardinus avellanariusMouton, Alice ; Renaud, Sabrina; Michaux, Johan Conference (2014, September 19)Detailed reference viewed: 2 (1 ULg) Towards enhanced estimates of future water demand in the Meuse basinDewals, Benjamin ; Archambeau, Pierre ; Erpicum, Sébastien et alConference (2014, September 18)Detailed reference viewed: 4 (2 ULg) Human cortical excitability depends on time spent awake and circadian phaseLy, Julien ; Chellappa, Sarah Laxhmi ; Gaggioni, Giulia et alConference (2014, September 17)At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking ... [more ▼]At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking period. But what’s happen at the cortical cerebral level? We used a novel technique coupling transcranial magnetic stimulation with electroencephalography (TMS/EEG) to assess the influence of time spent awake and circadian phasis on human cortical excitability. Twenty-two healthy young men underwent 8 TMS/EEG sessions during a 28 hour sleep deprivation protocole. We found that cortical excitability depends on both time spent awake and circadian phasis. [less ▲]Detailed reference viewed: 16 (5 ULg) Human cortical excitability depends on time awake and circadian phaseLy, Julien ; Chellappa, Sarah Laxhmi ; Gaggioni, Giulia et alConference (2014, September 17)At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking ... [more ▼]At any point in time, human performance results from the interaction of two main factors: a circadian signal varying with the time of the day and the sleep need accrued throughout the preceding waking period. But what’s happen at the cortical cerebral level? We used a novel technique coupling transcranial magnetic stimulation with electroencephalography (TMS/EEG) to assess the influence of time spent awake and circadian phasis on human cortical excitability. Twenty-two healthy young men underwent 8 TMS/EEG sessions during a 28 hour sleep deprivation protocole. We found that cortical excitability depends on both time spent awake and circadian phasis. [less ▲]Detailed reference viewed: 7 (7 ULg) Nuclear Waste Management in Belgium: the place(less) of public participationParotte, Céline Conference (2014, September 17)This presentation highlights the last reflections of the author on NWM in Belgium. It focuses on the new governance practices in Belgian nuclear waste management (NWM) from its ‘participatory turn’ in the ... [more ▼]This presentation highlights the last reflections of the author on NWM in Belgium. It focuses on the new governance practices in Belgian nuclear waste management (NWM) from its ‘participatory turn’ in the late 1990s. Rather than praising (or rejecting) participation versus expert analysis, we make use of a theoretical and analytical framework in which the important dynamics for the analysis are ‘opening up’ and ‘closing down’ technological appraisals and commitments. Even though NWM agencies often plea for an integrative approach between experts analysis and participation, in practice this reveals itself rather complicated as both exercises are often kept separate. We address this separation and its consequences and we find that societal concerns remain subsumed in the technical options which have long been favoured by the Belgian agency. This taming of uncertainty may come at a high price, if it systematically reduces the scope of alternative options for governance intervention or if societal consultations ultimately appear like an instrument of legitimation of already-taken decisions. [less ▲]Detailed reference viewed: 9 (0 ULg) Scriptorium, a retro-cataloguing tool to easily and quickly encode older book itemsRenaville, François ; Danhieux, Sylvain Conference (2014, September 16)The University of Liège Library's books collection is composed of some 2,000,000 print volumes, of which only 60% are catalogued. Most of the uncatalogued books have been published before 1970 and ... [more ▼]The University of Liège Library's books collection is composed of some 2,000,000 print volumes, of which only 60% are catalogued. Most of the uncatalogued books have been published before 1970 and cataloguing these according usual standards and norms would certainly take decades. To decrease the cost of treatments and increase the number of catalogued volumes, the Library developed a light PHP/MySQL application, Scriptorium, that enables non-catalogers (mostly students) to quickly encode the books (ca 3 min. per item) by providing the most essential information. References are then daily exported in MarcXML to the ILS. Scriptorium has been developed to permit to easily create new independent instances for different parallel retro-cataloguing projects and also to be used by other libraries. [less ▲]Detailed reference viewed: 153 (21 ULg) SFX Knowledge Base Advisory Board (KBAB): goals and achievements after one yearRenaville, François ; Needleman, MarkConference (2014, September 16)Founded in 2013 as a result of discussions at the 2012 Zurich Conference, the goal of the SFX Knowledge Base Advisory Board (KBAB) is to promote first class quality of the data stored in the SFX Knowledge ... [more ▼]Founded in 2013 as a result of discussions at the 2012 Zurich Conference, the goal of the SFX Knowledge Base Advisory Board (KBAB) is to promote first class quality of the data stored in the SFX Knowledge Base by reviewing the quality assurance policies and processes together with Ex Libris. During its first year, the group identified several issues in order to improve the CKB quality. They shared them with Ex Libris which agreed to work on or to take a look at some. This session will explain how KBAB has been working, and present some of the issues and the improvements brought by Ex Libris. [less ▲]Detailed reference viewed: 129 (17 ULg) Les effets de la retraite sur la mémoireAdam, Stéphane Conference (2014, September 16)Detailed reference viewed: 19 (0 ULg) Integrated modelling and uncertainty analysis for assessment of climate change effects on groundwater resourceGoderniaux, Pascal; Wildemeersch, Samuel ; Dassargues, Alain Conference (2014, September 15)Climate change will bring new pressure on surface and groundwater resources (e.g. Allen et al., 2004; Goderniaux et al., 2009; Van Roosmalen et al., 2009) in many parts of the world. Additional work is ... [more ▼]Climate change will bring new pressure on surface and groundwater resources (e.g. Allen et al., 2004; Goderniaux et al., 2009; Van Roosmalen et al., 2009) in many parts of the world. Additional work is required to help water managers to plan for future changes. For example, most of studies provide projections for a stationary climate representative of the end of the century, although information is demanded for the near-future. A sophisticated transient weather generator (WG) in combination with an integrated surface-subsurface hydrological model (HydroGeoSphere) are used for producing a stochastic generation of large numbers of equiprobable climatic time series, representing transient climate change, and assess impacts on groundwater resources in a probabilistic way. This new methodology is applied for the unconfined chalky aquifer of Hesbaye (Geer basin in Belgium). The following uncertainty sources are studied : (1) the uncertainty linked to the calibration of the hydrological model, using 'UCODE_2005' (Poeter et al., 2005); (2) the uncertainty linked to the global and regional climatic models (GCMs and RCMs), by using a multi-model ensemble; (3) the uncertainty linked to the natural variability of the weather, by using stochastic climate change scenarios. 30 equiprobable climate change scenarios from 2010 to 2085 have been generated for each of 6 different RCMs. Results show that although the 95% confidence intervals calculated around projected groundwater levels remain large, the climate change signal becomes stronger than that of natural climate variability by 2085. Additionally, the WG ability to simulate transient climate change enabled the assessment of the likely timescale and associated uncertainty of a specific impact. This methodology constitutes a real improvement in the field of groundwater projections under climate change conditions as it enables water managers to analyse risks and take decisions with full knowledge of projected impact and their degree of confidence. [less ▲]Detailed reference viewed: 14 (1 ULg) Developping a physically based groundwater vulnerability concept in a DPSIR frameworkBeaujean, Jean ; Brouyère, Serge ; Lemieux, Jean-Michel et alConference (2014, September 15)A general physically based method is presented to assess vulnerability of groundwater to external pressures with respect to quality and/or quantity issues. In the vulnerability assessments, many ... [more ▼]A general physically based method is presented to assess vulnerability of groundwater to external pressures with respect to quality and/or quantity issues. In the vulnerability assessments, many scientific authors agree nowadays that ‘physically based’ methods must be preferred to traditional approaches based on empirical overlay and index methods where physical attributes are often mixed with implicitly embedded conventional priorities. Results from one or another of these last methods can consequently be very dissimilar for a given case study and decision makers are losing confidence in these tools. A methodology is proposed to reframe the groundwater vulnerability assessment in a Pressure-State-Impact causal chain that is familiar to decision makers. The DPSIR framework, for describing interactions between society and the environment, defines a chain of Drivers that exert Pressures on the State of a given resource, such as water, which then generates an Impact that will require an appropriate Response (Kristensen, 2004). The concept of groundwater vulnerability assessment considered here is based on the calculation of sensitivity coefficients for a user-defined groundwater state for which several physically-based indicators are proposed. These sensitivity coefficients reflect the easiness with which the groundwater state transmits pressures into impacts. They are grouped into a vulnerability matrix of pressures and impacts that quantify vulnerability for every combination of causal links identified in the DPSIR chain. For that reason, the sensitivity coefficients are converted to vulnerability, using the concept of ‘falling below a given threshold’, which is commonly used in socioeconomic sciences (Luers et al. 2003). Outside the careful selection of the sensitivity analysis method that can significantly influence the computational effort (Beaujean et al., 2013), emphasis will be given to the illustration of the general methodology on a simple case (of an alluvial aquifer with concerns related to water supply) demonstrating the potential use of this general and physically based vulnerability assessment method. While the methodology is general, the choice of causal chains has to be made prior to the calculation. The vulnerability is also related to a damaged state and is related to the ‘distance’ between the current state and a given threshold. This choice is arbitrary such that the vulnerability is sensitive to the choice of the threshold. The framework is general and, when applied to water, can include states that are not limited to quality such as, for example, water quantity and availability. [less ▲]Detailed reference viewed: 18 (4 ULg) „Mit blankem Jagdmesser, so heißt es...“ Erzählte Morde und Mörder in Theodor Storms NovellenLeyh, Valérie Conference (2014, September 13)Detailed reference viewed: 12 (2 ULg) Jupiter’s magnetopause: A search for wave and reconnection signaturesBonfond, Bertrand ; Kivelson, M. G.; Khurana, K. K. et alConference (2014, September 12)Surface waves and magnetic reconnection are two key processes taking place at the planetary magnetopause. They allow the coupling, through energy (and particle) transfer, of the interplanetary medium and ... [more ▼]Surface waves and magnetic reconnection are two key processes taking place at the planetary magnetopause. They allow the coupling, through energy (and particle) transfer, of the interplanetary medium and the magnetosphere. The relative importance of large scale Dungey reconnection and viscous interaction (including small-scale intermittent reconnection associated with Kelvin-Helmholtz vortices) are expected to be different at Jupiter compared to the Earth’s case. Such differences would be due to the combination of a) a weaker solar wind pressure and Alfvén velocity as the distance to the Sun increases, b) a high-β plasma sheet, originating from Io’s outgassing, which inflates the Jovian magnetosphere, c) the rapid rotation of the planet relative to its size (e.g. Desroche et al. 2012). Here we analyse the signatures of wave activity and reconnection on the magnetopause of Jupiter, based on magnetic field and energetic particle measurements from the successive spacecraft that explored the Jovian system. Up to now, 7 spacecraft equipped with a magnetometer have crossed the Jovian magnetopause: Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Ulysses, Galileo and Cassini. We make use of several normal direction finding techniques, such as the Minimum Variance Analysis, in order to identify waves and Kelvin-Helmholtz vortices. As far as the reconnection is concerned, small scale signatures of flux-tube events (FTEs) had been identified by Walker and Russell (1985), based on a limited data-set from the Pioneers’ and Voyagers’ fly-bys. Here we will extend this search to the extensive dataset from all the missions that explored Jupiter’s system. [less ▲]Detailed reference viewed: 11 (4 ULg) Highlights of the 2014 Jupiter observing campaign by multi - spectral remote sensing using space telescopesKimura, T.; Badman, S.; Tao, C. et alConference (2014, September 11)From January to April 2014, two observing campaigns by multi-wavelength remote sensing from X-ray to radio were performed to uncover energy transport process in Jupiter’s plasma environment using space ... [more ▼]From January to April 2014, two observing campaigns by multi-wavelength remote sensing from X-ray to radio were performed to uncover energy transport process in Jupiter’s plasma environment using space telescopes and ground-based facilities. These campaigns were triggered by the new Hisaki spacecraft launched in September 2013, which is an extremely ultraviolet (EUV) space telescope of JAXA designed specifically for planetary observations. In the first campaign in January, Hubble Space Telescope made imaging of far ultraviolet (FUV) aurora with a high special resolution (0.08”) through two weeks while Hisaki continuously monitored aurora and plasma torus emissions in EUV wavelength with a high temporal resolution (1 min<). We discovered new magnetospheric activities from the campaign data: e.g., internally-driven type auroral brightening associated with hot plasma injection, and plasma and electromagnetic filed modulations in the inner magnetosphere externally driven by the solar wind modulation. The second campaign in April was performed by Chandra X-ray Observatory, XMM newton, and Suzaku satellite simultaneously with Hisaki. Relativistic auroral accelerations in the polar region and hot plasma in the inner magnetosphere were captured by the X-ray space telescopes simultaneously with EUV monitoring of aurora and plasma torus. In this presentation, we show remarkable scientific results obtained these campaigns mainly focusing on Jupiter’s aurora. [less ▲]Detailed reference viewed: 10 (1 ULg) Weakening of Jupiter’s main auroral emission in response to magnetospheric hot plasma injectionsBadman, Sarah; Bonfond, Bertrand ; Fujimoto, M. et alConference (2014, September 11)We present images of Jupiter’s northern UV aurorae taken by the Hubble Space Telescope as part of a large observing campaign in January 2014. The high time resolution observations allow the dynamics of ... [more ▼]We present images of Jupiter’s northern UV aurorae taken by the Hubble Space Telescope as part of a large observing campaign in January 2014. The high time resolution observations allow the dynamics of the different components of the aurorae to be observed. Particular features of interest are large regions of diffuse emission, which occurred equatorward of the main oval, enveloping the auroral footprint of Ganymede. These diffuse, low latitude emissions are caused by the injection of hot plasma from the outer magnetosphere, a process which has previously been related to interchange between the flux tubes from the outer magnetosphere and outward-moving flux tubes loaded with iogenic plasma. Over the two-week observing interval the auroral signatures of two large injection events were observed, while the main oval generally decreased in intensity. We suggest that the overall dimming of the main oval results from the weakening of the corotation-enforcement currents that drive the main emission, following the replacement of the radially-stretched, mass-loaded flux tubes by more dipolar flux tubes containing rarefied hot plasma. [less ▲]Detailed reference viewed: 9 (2 ULg) Transient small-scale structure in the main auroral emission at JupiterPalmaerts, Benjamin ; Radioti, Aikaterini ; Grodent, Denis et alConference (2014, September 11)Detailed reference viewed: 7 (2 ULg) RANS and Large Eddy Simulation of the hydrodynamics inside mini-bioreactors designed for stem cell cultureCollignon, Marie-Laure ; Martin, Céline; Blanchard, Fabrice et alConference (2014, September 07)Detailed reference viewed: 23 (4 ULg) Banks's networks in Africa: from individual missions to a collective program of explorationVandersmissen, Jan Conference (2014, September 06)Detailed reference viewed: 5 (1 ULg) Cannabis use initiation among adolescents: the predictive role of peers, alcohol, expectancies and internalizing factors.Schmits, Emilie ; Mathys, Cécile ; Quertemont, Etienne Conference (2014, September 05)Theoretical background: Cannabis is the most commonly used illicit drug among teenagers. Initiation is influenced by environmental factors and personal characteristics, events or experiences. An early ... [more ▼]Theoretical background: Cannabis is the most commonly used illicit drug among teenagers. Initiation is influenced by environmental factors and personal characteristics, events or experiences. An early initiation increases the risks of problems related to cannabis use (e.g. negative psychosocial effects, delinquent behaviors, mental disorders). Prevent initiation, through the identification of risk/protective factors and their interaction, seems crucial in terms of public health. Research question and significance: This study aimed to examine the progression of use, to identify protective and risk factors of cannabis initiation (including peers, alcohol, expectancies and internalizing factors) and to specifically focus on the influence of social anxiety and its moderators/mediators. Methods: A questionnaire was administered twice to 877 teenagers (49.94% female, M=15.61) with one year interval. Sex, age, demographic variables, peer cannabis use, cannabis-related variables (lifetime, frequency, problems and expectancies), alcohol use, social anxiety, trait-anxiety and depression were assessed through validated scales. Logistic regressions, mediation and moderation analyzes were performed. Results: During the follow-up period, 12.89% of the young participants initiated cannabis use. Several factors significantly predict initiation: alcohol use, peer users, perceptual enhancement and craving effect expectancies. Others factors significantly protect from initiation: negative behavioral effect expectancies and social anxiety. Gender, age, relaxation/social facilitation and cognitive impairment effect expectancies, trait-anxiety and depression do not significantly influence cannabis use initiation. In moderated mediation model, after controlling for relevant variables, social anxiety protected from initiation trough the mediating role of perceptual enhancement and craving effect expectancies. The number of peer users and alcohol use do not moderate this mediation. Negative behavioral effect expectancies do not significantly mediate the relation between social anxiety and cannabis initiation. Interpretation of findings: Through low positive expectancies, adolescents with social anxiety symptoms are less likely to initiate cannabis use than the others, whatever the number of peer users and the alcohol use. Findings are discussed in terms of risk and protective characteristics of relevant factors, in an overall and evolutionary approach including internalizing factors. Results support the identification of internalizing profile of adolescents concerned by prevention or treatment and the importance of social anxiety and expectancies in intervention. [less ▲]Detailed reference viewed: 17 (2 ULg) Is Geometallurgy Teachable? A challenge for the new Erasmus Mundus EMeraldPirard, Eric Conference (2014, September 05)designate any kind of advanced ore characterisation prior to mineral processing operations while in fact it should clearly refer to a multidisciplinary integration of geological, mining, metallurgical ... [more ▼]designate any kind of advanced ore characterisation prior to mineral processing operations while in fact it should clearly refer to a multidisciplinary integration of geological, mining, metallurgical, environmental and economic information into a single orebody model. In order to instil the best available geometallurgical practices in the professional world, it seems essential to break the traditional cleavages among disciplines and educate a new generation of engineers. The Erasmus Mundus EMerald “Master in Georesources Engineering” program initiated by four European universities under the coordination of University of Liege, has been designed to exactly tackle this challenge. It is not surprising that this program has been set up by universities having a long tradition in mixing a double perspective of geology and engineering (Nancy; Lulea; Liege and Freiberg). Geometallurgy requires both an excellent understanding of the natural variability and complexity of an ore and a comprehensive overview of the techniques available to extract and concentrate any valuable material. The course program has been designed to achieve a right balance between knowledge of mineral resources (geology, resource characterisation, reserve estimation, modelling) and processing (comminution, preconcentration, leaching, waste disposal,...). It also includes a broader view on life cycle analysis and urban mining. A series of professional seminars, suggested by an industrial advisory board, shed light on strategic issues, economic and environmental challenges, corporate social responsibilities, etc. Mobility and multicultural experience is an added-value of the Erasmus Mundus experience which definitely contributes to breeding engineers for tomorrow. [less ▲]Detailed reference viewed: 9 (0 ULg) Economic Land Consumption and Regional Development in North-West EuropeVandermeer, Marie-Caroline ; Halleux, Jean-Marie Conference (2014, September 05)Detailed reference viewed: 11 (6 ULg) xDodeigne, Jérémy Conference (2014, September 04)Detailed reference viewed: 128 (30 ULg) Physiopathology of cerebral palsyVIELLEVOYE, Renaud Conference (2014, September 03)Cerebral palsy describes a group of disorders of the development of movement and posture, causing activity limitation, that are attributed to nonprogressive disturbances that occurred in the developing ... [more ▼]Cerebral palsy describes a group of disorders of the development of movement and posture, causing activity limitation, that are attributed to nonprogressive disturbances that occurred in the developing fetal or infant brain. The vulnerability of different brain structures and types of disability associated with CP are influenced by the gestational age at which brain development is altered. Understanding the pathophysiology of CP is crucial for the development of neuroprotective strategies. In the first trimester of gestation, genetic disorders, infectious and toxic diseases explain the vast majority of lesions. In the preterm newborn, neuroinflammation and anoxo-ischemia induce activation of the microglia and a maturational blockade of oligodendrocytes disrupting the developmental program of white matter. In term infants, hypoxic-ischemic encephalopathy is the consequence of the excitotoxic cascade leading to cortical and/or basal ganglia lesions. Clinical disabilities are the consequence of these lesions modulated by cerebral plasticity process. [less ▲]Detailed reference viewed: 4 (0 ULg) Cost monitoring to promote the value added for clam raising farmers in the Northern area of VietnamBui Thi, Nga; Tran Thu, Hoai; Tran Huu, Cuong et alConference (2014, September 02)Clam farming in coastal provinces of Vietnam has notably developed since the last decade. It generated high income, improve socio-economic development for many local communities. However, many clam ... [more ▼]Clam farming in coastal provinces of Vietnam has notably developed since the last decade. It generated high income, improve socio-economic development for many local communities. However, many clam raising farms are facing difficulties of farm management, disease control, markets and systems of quality control. This research aims to study about the real situation of cost monitoring in the clam raising farms in the Northern area of Vietnam and suggest some recommendation for apply a suitable model for cost monitoring to promote the value added for farmers. The paper based on the semi-structure, standard questionnaires and PRA method to collect data from 89 clam raising farms in two coastal provinces (Nam Dinh and Thai Binh) in the Northern area of Vietnam in 2014. The findings show that clam raising provides farmers a chance of getting high income parallel with high risk. There were 32.15% surveyed farms got profit, 32.14% of them met the breakeven and 35.71% was lost. The study finds out four key factors affecting farms’ economic performance and efficiency. The first is capacity of farm cost control as the cost for clam raising was very high at 8,142 to 9,190 USD per ha. The second is the farmers’ experience, skill, technique and ability of risk control. The third is low, unstable market price and unsuitable market channel with the dominant of the traders. Final factors is the area and location of clam raising. Despite of these difficulties, 55.14% surveyed farms still want to expand their production, 25% of them will continue, and only 17.86% will stop or change to other activities. In order to promote the value added for clam raising farmers, cost control should be paid more attention, improvement of the farmers’ capacity is necessary, and market should be regarded. [less ▲]Detailed reference viewed: 22 (6 ULg) From geometallurgy to ecometallurgy:Building mines for the futurePirard, Eric Conference (2014, September 02)geometallurgy will become the central pivot of a successful mining operation. Recently, Europe has awakened from a long period of lethargy in the raw materials sector. A series of important initiatives ... [more ▼]geometallurgy will become the central pivot of a successful mining operation. Recently, Europe has awakened from a long period of lethargy in the raw materials sector. A series of important initiatives inspired by the European Innovation Partnership (EIP) have paved the way for more intense cooperation between industry, research centres and universities. Among these, the establishment of a Knowledge Innovation Community (KIC) in 2015 will definitely boost innovation and education in the sector. Interestingly, EIP addresses the whole value chain and considers mining, recycling and substitution as essential pillars of the raw materials policy. This vision strengthens the role of geometallurgy but also brings up the need for a close dialogue between mineralogists, metallurgists and product designers. Microelectronics and nanotechnologies are ubiquitous in our technologies and have greatly improved their functionality, but they have also made recycling and efficient recovery of metals a tough technical challenge. Our urban mines formed by the accumulation of end-of-life products should be scrutinized from now on using an ecometallurgical approach whereby important questions should be addressed such as: 1. Metal concentrations: Is the metal grade high enough to pay for recycling? Does the manufacturer help to maintain grades above a technological cut-off? 2. Metal speciation: Under which form (alloy, salt, organic compound,…) is the metal present? Is there a processing technology available to separate these species? 3. Metal paragenesis: What are the metal assemblages found in the product? Will it be feasible to separate those metals and at what costs? Are there penalty or contaminating elements associated? 4. Textural assemblage: How will the product behave during dismantling? Is it realistic to liberate a given component? What comminution strategy will be needed to achieve phase liberation? 5. Reserve estimation: What are the tonnages expected for this kind of product? Can selective collection be organised? 6. Homogeneity: What will the next generation of products look like? Should one expect strong differences in concentration, speciation, paragenesis, etc.? Will this kind of product be blended with others during collection? How will this impact on downstream recycling? Ecometallurgy, as introduced here, is essentially about establishing a dialogue with product designers and material scientists to make sure that, once unearthed, metals will remain easily and sustainably available for the future generations. Geologists and mineralogists, even though generally kept away from the synthetic materials, could greatly contribute to this progress by bringing their expertise in dealing with complex and variable orebodies of the future. [less ▲]Detailed reference viewed: 14 (0 ULg) Mineralogy of fine particles in slurry from multispectral imagingLeroy, Sophie ; Dislaire, Godefroid ; Barnabé, Pierre et alConference (2014, September 02)Quantitative mineralogy of fine particles in slurry from multispectral imaging Sophie Leroy, Godefroid Dislaire, Pierre Barnabé and Eric Pirard Mineral processing especially in its final stages relies ... [more ▼]Quantitative mineralogy of fine particles in slurry from multispectral imaging Sophie Leroy, Godefroid Dislaire, Pierre Barnabé and Eric Pirard Mineral processing especially in its final stages relies heavily on the differential behavior of particles in pulps. In order to monitor hydrocyclones and flotation cells in almost real time, it is important to develop at line particle characterization providing information on particle distribution but also mineralogy. A sampling device has been elaborated based on a flow cell with variable wall spacing linked to a high pressure peristaltic pump. This setup allows for dispersion and dilution of the mineral slurry into the cell. Depending on the ore or gangue minerals to be controlled, particles can be imaged either in diffuse reflectance or in transmittance mode. A simple multispectral imaging module has been designed to acquire images at eight different wavelengths. The design is based on a series of dichroic filters thereby avoiding any moving part and enabling a very fast acquisition of multispectral images. Imaging artifacts due, among others, to specular reflectance from the glass window are minimized. Multispectral classification is used to outline particles appearing in the field of view and to qualify their main mineral component. In particular, areas reflecting a meaningful and discriminative spectrum are identified and compared to a multispectral database. The database is continuously enriched through testing of pure mineral particles under similar pulp conditions (dilution, grain size,…). Results of final classification are compared to the modal analysis obtained from polished blocks and conventional reflected light microscopy. The technology developed in this work sets the basis for at line monitoring of ore slurries with reasonably simple mineralogy. Extension of the spectral range is being considered for future developments. [less ▲]Detailed reference viewed: 2 (1 ULg) Technical variability in the Gravettian with tanged tools: new results from BelgiumTouzé, Olivier; Flas, Damien ; Pesesse, DamienConference (2014, September 01)Detailed reference viewed: 9 (0 ULg) Selecting job candidates who have a propensity to exhibit change-oriented organizational citizenship behaviour.Lothe, Benoit ; Hansez, Isabelle Conference (2014, September)Purpose An abundant literature indicates that Organizational Citizenship Behaviours (OCBs) positively influence a number of important organizational outcomes. Furthermore, research is needed on the topic ... [more ▼]Purpose An abundant literature indicates that Organizational Citizenship Behaviours (OCBs) positively influence a number of important organizational outcomes. Furthermore, research is needed on the topic of assessing and selecting applicants who have a propensity to exhibit OCB (Organ & al., 2010). Some of these behaviours are truly important to enable organization to adapt and “to make constructive changes in the work and task environment” (Choi, 2007, p.468). Examples include Voice, a challenging dimension of OCB (Dominguez & al., 2013), and Sportsmanship, that facilitate the change by reducing the diversion of resources in trivial matters (Organ & al., 2006). This exploratory study provides empirical evidence about using Situational Judgment Tests (SJTs) for identifying applicants who have a propensity to exhibit change oriented OCB. Method Two SJTs were developed to comply with OCBs assessment. The OCBs framework includes behaviours relating to organizational adaptation (sportsmanship) and change (voice). OCBs were concurrently collected using self-reported measurement scales. Data were collected from 220 white collars and 139 university students through an online survey. Results Significant correlations were found between the SJT scores and overall OCB ratings. More specifics findings provided substantial evidence for the concurrent validity of the SJTs to measure change-oriented sub-dimensions of OCBs. Conclusions Researches on techniques to predict OCBs are scarce and this study is the first to address the development and validation of a SJT for the assessment of affiliative and challenging dimensions of OCBs. [less ▲]Detailed reference viewed: 16 (1 ULg) A Multiphysics model of neotissue growth in a perfu sion bioreactorGuyot, Yann ; Papantoniou, Ioannis; Schrooten, Jan et alConference (2014, September)Detailed reference viewed: 8 (0 ULg) Formal Incident Reporting System: Putting Solidarity on TrialRossignol, Nicolas ; Claisse, Frédéric Conference (2014, September)The practice of “incident reporting” is commonly recognized as an effective mean to reduce the vulnerability of “at risk” socio-technical systems (e.g. nuclear plants, large industrial facilities or ... [more ▼]The practice of “incident reporting” is commonly recognized as an effective mean to reduce the vulnerability of “at risk” socio-technical systems (e.g. nuclear plants, large industrial facilities or hospitals), as it allow the concerned community to learn from past incidents. Indeed, it is assumed that collective resilience will be upgraded via the use of institutionalized Incident Reporting System (IRS), enabling the organization to improve the quality of the actions and reactions in case of deviation from normality, or to prevent such deviation. Yet, inductive analysis of what happens with those IRS in practice are not numerous. In this paper, we address this gap and display the results of semi-structured interviews conducted in a nuclear facility. During those interviews, participants were also requested to produce a mind map of the IRS they are concerned with. As a result, we show that safety is a matter of solidarities that are situated in specific contexts. To that regard, incident reporting is a practice of decomposition and recomposition of trusts and thus of solidarities. Reporting incidents consists in putting solidarity on trial, as the collective safety was threatened. We show that such open trial is often avoided because questioning solidarities is not always desirable in order to allow the group to continue functioning. Overall, we argue that informal reporting behaviors can also contribute to upgrade collective resilience without putting solidarities on trial. [less ▲]Detailed reference viewed: 11 (1 ULg) The Double-Sarcophagus of Hierapytna (Creta). A ReassessmentVeymiers, Richard Conference (2014, September)Detailed reference viewed: 21 (1 ULg) Participating in Voluntary Safety Initiatives, how you look at it and what you get from it: Linking Perceived Management Commitment to Safety and Safety Knowledge and Motivation through Safety Citizenship Role Definitions and Discretionary Safety ActivitiesLaurent, Julie ; Hansez, Isabelle ; Chmiel, NikConference (2014, September)Detailed reference viewed: 38 (16 ULg) The earliest seed plants from Gondwana: palaeogeographical and evolutionary implications based on Tournaisian (Mississippian) records from ArgentinaPrestianni, C.; Rustán, J.J.; Balseiro, D. et alConference (2014, September)Detailed reference viewed: 9 (0 ULg) Implications of microbial phenotypic heterogeneity in large-scale bioprocessing conditionsDelvigne, Frank ; Gorret, Nathalie; Molina-Jouve, Carole et alConference (2014, September)Detailed reference viewed: 9 (1 ULg) Les objectifs de la formation des soignants en Education Thérapeutique du Patient : une propositionPétré, Benoît ; Guillaume, Michèle ; LEGRAND, Catherine et alConference (2014, September)Detailed reference viewed: 10 (2 ULg) The Belgian Reform of Mental Health: Changing the Face of Psychiatric HospitalsThunus, Sophie Conference (2014, September)This paper focuses on the ongoing reform of psychiatric and mental health care delivery in Belgium. It starts by mentioning particularities of the system’s development, then it defines the reform’s ... [more ▼]This paper focuses on the ongoing reform of psychiatric and mental health care delivery in Belgium. It starts by mentioning particularities of the system’s development, then it defines the reform’s objectives and policy instruments used to reach these objectives and, finally, it indicates specific issues and outcomes resulting from the implementing. [less ▲]Detailed reference viewed: 18 (4 ULg) Imaging and understanding of iron ore granulation using X-ray mictrotomographyEvrard, Maxime ; Contreras, Rafael; Pirard, Eric Conference (2014, September)Imaging and understanding of iron ore granulation using X-ray microtomography. Evrard M., Contreras R., Pirard E. Most iron ores cannot be directly fed into blast furnaces because their particle size ... [more ▼]Imaging and understanding of iron ore granulation using X-ray microtomography. Evrard M., Contreras R., Pirard E. Most iron ores cannot be directly fed into blast furnaces because their particle size distribution will negatively impact the blast furnace permeability and hence the overall efficiency of the ore reduction process. The finest fraction (typ. < 6.3 mm) has to undergo a sintering process, wherein a mixture of iron ore, coke and flux (limestone, olivine,…) is heated, partially molten and transformed into pieces of sintered material with adequate size, porosity and strength characteristics to be fed into the blast furnace. The preparation of an adequate mixture involves a granulation process which is the subject of this study. Sintering and hence granulation of iron ores, is particularly important in Europe where iron ores show a downward trend in quality (finer particles, broader size range, lower grades with higher variability). In addition an increasing fraction of non-sintered material (return fines) is being added to the mix to optimize the resource efficiency while maintaining sinter quality. For most practitioners, microgranules (or micropellets) are considered as being composed of a nucleus (a particle in the range of 1 to 2 mm) surrounded by layers of the finest ore particles (typically the < 250 µm fraction). A series of experiments and 3D imaging tests have been performed in this study to better understand the granulation mechanisms. Microgranules are formed by mixing iron ore with water in a small rotating drum. Several parameters can be tuned during the granulation process: size and proportion of nucleating particles, size and proportion of fines, water addition, rotating speed, total duration,… Simple experiments using a single ore type (dominantly goethitic or hematitic) and water additions have been carried out systematically to better understand the kinetics of granulation. X-ray microtomography and subsequent 3D image analysis is used to identify and quantify the number of nuclei (when present), to measure the porosity and identify layering or cracks in the microgranule. Compared to previous studies on iron ore pellets (Farber et al. 2002; Shatokha et al. 2009; Shatokha et al. 2010), this work focuses on imaging prior to sintering. It also uses higher resolution micro-CT and definitely brings a better insight into granulation as compared to data from 2D imaging of polished blocks: less artefacts in apparent porosity due to sample preparation; good discrimination among components of the granule; clear identification of the nuclei; etc. This work is part of a larger European project (IMSIMI - Improved Sintering Mix) aiming at an optimal use of challenging input materials through carefully monitored preparation phases (mixing, granulation, etc.) and better understanding of their impact on the sintering process. Farber L., Tardos G., Michaels JN.,2002. Use of X-ray tomograzphy to study the porosity and morphology of granules. Powder Technology vol. 132, p 57-63. Shatokha V., Korobeynikov I., Maire E., Adrien J., 2009. Application of 3D X-ray tomography to investigation of structure of sinter mixture granules. Ironmaking and Steelmaking, vol. 36 (6), p 416-420. Shatokha V., Korobeynikov I., Maire E., Gremillard L., Adrien J.,2010. Iron ore sinter porosity characterisation with application of 3D X-ray tomography. Ironmaking and Steelmaking, vol. 37(5), p313-319. [less ▲]Detailed reference viewed: 13 (4 ULg) Le test conflictuel - un colosse aux pieds d'argile?Wautelet, Patrick Conference (2014, September)Cette présentation a servi de support à une communication tendant à faire le point sur l'article 27 du Code de droit international privé. La communication avait comme objectif de démontrer les difficultés ... [more ▼]Cette présentation a servi de support à une communication tendant à faire le point sur l'article 27 du Code de droit international privé. La communication avait comme objectif de démontrer les difficultés du régime actuel d'accueil en Belgique des actes étrangers en Belgique et à formuler des pistes de solution pour améliorer ce régime. [less ▲]Detailed reference viewed: 8 (1 ULg) Asteroseismology of evolved stars: from hot B subdwarfs to white dwarfsVan Grootel, Valérie ; Fontaine, G.; Charpinet, S. et alConference (2014, September)Detailed reference viewed: 10 (0 ULg) Analytical study of brain and different organs of baby mice early exposed to NDL-PCBsEppe, Gauthier ; Thomé, Jean-Pierre ; Scholl, Georges Conference (2014, September)Detailed reference viewed: 8 (0 ULg) Autoévaluation d’une filière d’enseignement en Santé publique – l’exemple de l’Université de LiègePétré, Benoît ; Streel, Sylvie ; Maggi, Patrick et alConference (2014, September)Detailed reference viewed: 12 (2 ULg) β 5 tubulin and 15-protofilament microtubules appeared in supporting cells of the Corti’s organ during development in rodentsRenauld, Justine ; Thelen, Nicolas ; Johnen, Nicolas et alConference (2014, August 31)A feature of the organ of Corti’s supporting cells is the presence of an abundant cytoskeleton which is mainly composed of microtubules. These supporting cells have also been shown to contain a minor ... [more ▼]A feature of the organ of Corti’s supporting cells is the presence of an abundant cytoskeleton which is mainly composed of microtubules. These supporting cells have also been shown to contain a minor mammalian tubulin, the β5-tubulin [1], recently related as a biomarker for cancer outcome [2] and cell proliferation [3]. It was shown that a β-tubulin isoform can specified the microtubule architecture, such as the expression of the Moth β2 in the Drosophila testes imposed the 16 protofilaments (16pf) structure on the corresponding subset of Drosophila microtubules, which normally contain 13pf [4]. Moreover, supporting cell microtubules are formed by 15pf instead of the canonical 13, a unique fact among vertebrates [5]. Such a protofilament configuration has been observed in C. elegans’ neurons which are responsible for the mechanosensory sense of touch [6]. It was also shown that these 15pf microtubules were essential to the proper functioning of these mechanosensory neurons [6]. To determine the role of this particular tubulin in the auditory organ and its possible involvement in the formation of the unusual 15pf microtubules of supporting cells, we studied the spatiotemporal localization of β5-tubulin during development in rats from embryonic day 18 until P25 (25th postnatal day). We also analyzed the localization of β5-tubulin mRNA expression in the Corti’s organ. Then we examined the fine structure of microtubules at the electron microscope level. For these experiments, we used an early postnatal stage and a late postnatal stage. Our results showed that β5-tubulin, contrary to other β-tubulins, had a unique distribution in the cochlea. This β-tubulin appeared at a postnatal stage, before the opening of the Corti’s tunnel and being restricted to supporting cells, especially in pillar and Deiters cells,. The same localization of β5-tubulin mRNA was observed by in Situ Hybridization. Electron microscopy indicated further that Pillar and Deiters cells were composed by 15-protofilament microtubules at the late postnatal stage (P25). In conclusion, all these data strongly suggest that there is a relationship between the presence of β5-tubulin and 15-protofilament microtubules in the supporting cells of the auditory organ. Further studies are now needed to elucidate their role. [less ▲]Detailed reference viewed: 7 (1 ULg) Problématique foncière chez les exploitants agricoles de la Province de Kirundo au nord du BurundiMinani, Bonaventure; Rurema, Déo-Guide; Burny, Philippe et alConference (2014, August 30)Detailed reference viewed: 7 (3 ULg) The effects of a Global Agricultural Policy on the smallholder farmers in ending hungerPaveliuc-Olariu, Codrin; Burny, Philippe Conference (2014, August 30)Detailed reference viewed: 3 (0 ULg) Amélioration des moyens d'existence durables. Une voie pour la durabilité des exploitations agricoles familiales de coton au BéninAssogba, Claude Gervais; Tossou, C. R.; Lebailly, Philippe et alConference (2014, August 30)Detailed reference viewed: 3 (0 ULg) Production cotonnière et agriculture familiale en Afrique de l'OuestBerti, Fabio ; Lebailly, Philippe ; Burny, Philippe Conference (2014, August 30)Detailed reference viewed: 5 (0 ULg) L'agriculture de subsistance et de semi-subsistance en RoumanieDona, Ion; Burny, Philippe Conference (2014, August 30)Detailed reference viewed: 6 (1 ULg) Aspects économiques de la filière du vermicelle de tolomane au VietnamLe Thi Long, Vy; Vu Dinh, Ton; Lebailly, Philippe et alConference (2014, August 30)Detailed reference viewed: 4 (0 ULg) Accelerating Random Forests in Scikit-LearnLouppe, Gilles Conference (2014, August 29)Random Forests are without contest one of the most robust, accurate and versatile tools for solving machine learning tasks. Implementing this algorithm properly and efficiently remains however a ... [more ▼]Random Forests are without contest one of the most robust, accurate and versatile tools for solving machine learning tasks. Implementing this algorithm properly and efficiently remains however a challenging task involving issues that are easily overlooked if not considered with care. In this talk, we present the Random Forests implementation developed within the Scikit-Learn machine learning library. In particular, we describe the iterative team efforts that led us to gradually improve our codebase and eventually make Scikit-Learn's Random Forests one of the most efficient implementations in the scientific ecosystem, across all libraries and programming languages. Algorithmic and technical optimizations that have made this possible include: - An efficient formulation of the decision tree algorithm, tailored for Random Forests; - Cythonization of the tree induction algorithm; - CPU cache optimizations, through low-level organization of data into contiguous memory blocks; - Efficient multi-threading through GIL-free routines; - A dedicated sorting procedure, taking into account the properties of data; - Shared pre-computations whenever critical. Overall, we believe that lessons learned from this case study extend to a broad range of scientific applications and may be of interest to anybody doing data analysis in Python. [less ▲]Detailed reference viewed: 8 (3 ULg) Computational homogenization of cellular materials with propagation of instabilities through the scalesNguyen, Van Dung ; Noels, Ludovic Conference (2014, August 29)The aim of this work is to develop an efficient multi–scale finite element framework to capture the buckling instabilities in cellular materials. As a classical multi–scale computational homogenization ... [more ▼]The aim of this work is to develop an efficient multi–scale finite element framework to capture the buckling instabilities in cellular materials. As a classical multi–scale computational homogenization scheme looses accuracy with the apparition of the macroscopic localizations resulting from the micro–buckling, the second–order multi–scale computational homogenization scheme1 is considered. This second–order computational framework is herein enhanced with the following novelties so that it can be used for cellular materials. First, at the microscopic scale, the periodic boundary condition is used because of its efficiency. As the meshes generated from cellular materials exhibit a large void part on the boundaries and are not conforming in general, the classical enforcement based on the matching nodes cannot be applied. A new method based on the polynomial interpolation2 without the requirement of the matching mesh condition on opposite boundaries of the representative volume element (RVE) is developed. Next, in order to solve the underlying macroscopic Mindlin strain gradient continuum of this second–order scheme by the displacement–based finite element framework, the treatment of high order terms is based on the discontinuous Galerkin (DG) method to weakly impose the C1-continuity3. Finally, as the instability phenomena are considered at both scales of the cellular materials, the path following technique is adopted to solve both the macroscopic and microscopic problems4. The micro–buckling leading to the macroscopic localization and the size effect phenomena can be captured within the proposed framework. In particular it is shown that results are not dependent on the mesh size at the macroscopic scale during the softening response, and that they agree well with the direct numerical simulations. [less ▲]Detailed reference viewed: 15 (2 ULg) Innovative lactation stage specific prediction of CH4 from milk MIR spectraVanlierde, Amélie; Vanrobays, Marie-Laure ; Dehareng, Frédéric et alConference (2014, August 28)Detailed reference viewed: 8 (0 ULg) Early Silurian cryptospores from the subsurface of Saudi ArabiaWellman, C.; Breuer, P.; Miller, M. et alConference (2014, August 26)Detailed reference viewed: 7 (1 ULg) Darriwilian (Middle-Ordovician) elements of primitive vegetation, marine palynomorphs and problematic microfossils, from the Saq/Qasim transitional beds in core QSIM 801, central Saudi Arabia. Discussion with eustatic and climatic eventsLe Hérissé, A.; Steemans, Philippe ; Wellman, C. et alConference (2014, August 26)Detailed reference viewed: 15 (0 ULg) Increasing the efficiency of Organic Rankine Cycle Technology by means of Multivariable Predictive ControlHernandez Naranjo, Jairo Andrés ; Desideri, Adriano ; Ionescu, Clara et alConference (2014, August 25)The Organic Rankine Cycle (ORC) technology has become very popular, as it is extremely suitable for waste heat recovery from low-grade heat sources. As the ORC system is a strongly coupled nonlinear ... [more ▼]The Organic Rankine Cycle (ORC) technology has become very popular, as it is extremely suitable for waste heat recovery from low-grade heat sources. As the ORC system is a strongly coupled nonlinear multiple-input multiple-output (MIMO) process, conventional control strategies (e.g. PID) may not achieve satisfactory results. In this contribution our focus is on the accurate regulation of the superheating, in order to increase the e fficiency of the cycle and to avoid the formation of liquid droplets that could damage the expander. To this end, a multivariable Model Predictive Control (MPC) strategy is proposed, its performance is compared to the one of PI controllers for the case of variable waste-heat source profi les. [less ▲]Detailed reference viewed: 66 (2 ULg) modelling heat and mass transfer during convective drying of a building materialKahlerras, Loubna Conference (2014, August 24)The purpose of this study is to characterize experimentally the behaviour of a cement mortar during its convective drying. The work presented here focuses on mortars with water-to cement ratios (w/C) of 0 ... [more ▼]The purpose of this study is to characterize experimentally the behaviour of a cement mortar during its convective drying. The work presented here focuses on mortars with water-to cement ratios (w/C) of 0, 5. The drying tests are realized in a convective dryer designed for the drying of small samples (0 - 8g). Experiences are realized with different conditions of drying air temperature (60, 90 and 130 °C) and velocity (2, 3 and 5 m/s) the results show the inﬂuence of temperature and velocity on drying curve. Mathematical models have been used for the description of drying curves. The exponential mathematical model seems the most adequate to describe the drying curves of cement mortars, with correlation coefficients changing with the air temperature and velocity and close to unity. The convective mass and heat transfer coefficients are determined from the experimental data. The results showed that both mass and heat transfer coefficients were affected by the air temperature and velocity. The convective mass transfer coefficient changed from 0.0232m/s at V=2m/s to 0.045m/s at V=5m/s, and from 0.055 m/s at 60°c to 0.023 at 130°c. Heat transfer coefficient changed from 14.767 w/m2°c at V=2m/s to 28.64 w/m2°c at V=5m/s and from 7.71 at 60° c to 14.77 at 130°c The temperature dependency of the two coefficients was expressed using an Arrhenius-type equation and related parameters were deduced [less ▲]Detailed reference viewed: 18 (2 ULg) Experimental study of the drying kinetic of mortarKahlerras, Loubna Conference (2014, August 24)This work reports the results of an experimental study concerning on one hand the influence of water-to cement ratios (W/C), and the role of aggregates on the other hand on the drying kinetics of cement ... [more ▼]This work reports the results of an experimental study concerning on one hand the influence of water-to cement ratios (W/C), and the role of aggregates on the other hand on the drying kinetics of cement pastes during thermal drying. Three types of cement pastes were realized and studied; cement pastes with ratios W/C 0.4, W/C 0.5 and mortar with ratio W/C 0.5. These tries present the advantage to reproduce the natural conditions met in the problems of interaction atmosphere and material. Cylindrical samples of cement of size (17 X 13) mm are dried in a convective dryer. The sample is continuously weighed during the drying test and its mass is recorded every 60 s, in the purpose to obtain the drying curves. The results show that the increase of the W/C ratio leads to an increase of the drying rate due to the increase of the initial porosity. The effect of the introduction of aggregates is observable by the comparison of the drying curve obtained for the mortar and the cement pastes. The results show a decrease of the drying kinetics with mortars. The results also show that the air drying temperature has a large impact on the drying process, increasing the temperature leading to significant drying time reduction. The Effective diffusion coefficient is calculated by comparison between the experimental results and the analytical solution of Fick’s equation written for a finite medium. [less ▲]Detailed reference viewed: 12 (3 ULg) Comparison of robust detection techniques for local outliers in multivariate spatial dataErnst, Marie ; Haesbroeck, Gentiane Conference (2014, August 22)Spatial data are characterized by statistical units, with known geographical positions, on which non spatial attributes are measured. Spatial data may contain two types of atypical observations: global ... [more ▼]Spatial data are characterized by statistical units, with known geographical positions, on which non spatial attributes are measured. Spatial data may contain two types of atypical observations: global and/or local outliers. The attribute values of a global outlier are outlying with respect to the values taken by the majority of the data points while the attribute values of a local outlier are extreme when compared to those of its neighbors. Usual outlier detection techniques may be used to find global outliers as the geographical positions of the data is not taken into account in this specific search. The detection of local outliers is more complex, especially when there are more than one non spatial attributes. This talk focuses on local detection with two main objectives. First, we will shortly review some of the local detection techniques that seem to perform well in practice. Among these, one can find robust Mahalanobis-type'' detection techniques and a wheighted PCA approach. We suggest an adaptation to one of these to further develop its local characteristic. Then, examples and simulations, based on linear model of co-regionalisation with Matern models, are reported and discussed in order to compare in an objective way the different detection techniques. [less ▲]Detailed reference viewed: 18 (4 ULg) Adorno-as-memory. Inheriting, resurfacing and replaying confidence in Kluge’s late workHamers, Jérémy ; Cormann, Grégory Conference (2014, August 22)Detailed reference viewed: 14 (2 ULg) The taste bud and the form. Ethnography of sensory labsVangeebergen, Thomas Conference (2014, August 20)Sensory analyses present an opportunity to challenge classical dualism, especially when it is about taste. During long-term fieldworks, I accompanied several types of sensory expert panels, which had the ... [more ▼]Sensory analyses present an opportunity to challenge classical dualism, especially when it is about taste. During long-term fieldworks, I accompanied several types of sensory expert panels, which had the mission to discriminate different sorts of products and define their respective sensory profile. I was interested to observe the period of training to understand how those people had acquired their expertise, and how their attention toward their own sensations were entangled to scientific infrastructures. Using sensory ethnographic methods, I assisted to the emergence of a particular world, in which the classical categories for science practices and taste perception were completely blurred. To establish a common truth, through sturdy and stable categories, appears to be compatible with personal moods and dispositions, singular and hedonic judgments, sociocultural grounded sensorium, contingent elements, and indeterminate parameters. Resorting to standard tests, educated and coached judges, statistical treatments, specific vocabulary, comparisons to physic-chemical analysis and various other apparatuses, these labs tempt to define and assess some food products. The goal of those examinations could be multiple: to outline consumers¿ feelings and choices, to check the quality of production, to search new applications, or to improve a current array. What interested me is the quest to an object practically exploitable in an industrial and commercial context, avoiding all kind of idiosyncratic experiences. In this presentation, I would tempt an analysis of those particular tests, focusing on the double bind of testing products and testing consumers, and searching to assess the causes of organoleptic variability. [less ▲]Detailed reference viewed: 20 (5 ULg) A multifractal analysis of air temperature signals based on the wavelet leaders methodDeliège, Adrien ; Nicolay, Samuel Conference (2014, August 20)We present the wavelet leaders method (introduced by S. Jaffard) as a tool to study the Hölder regularity of signals, which is closely related to some functional spaces. We use the associated multifractal ... [more ▼]We present the wavelet leaders method (introduced by S. Jaffard) as a tool to study the Hölder regularity of signals, which is closely related to some functional spaces. We use the associated multifractal formalism to show that surface air temperature signals are monofractal, i.e. these are regularly irregular. Then we use this result to establish a climate classification of weather stations in Europe which matches the Köppen-Geiger climate classification. This result could give rise to new criteria to determine the effectiveness of current climatic models. [less ▲]Detailed reference viewed: 11 (4 ULg) Commémorations et souvenirs d'août 1914 à LiègeLanneau, Catherine Conference (2014, August 20)Comment, au fil des décennies, a-t-on célébré à Liège et dans sa région, le souvenir des événements d’août 1914, à commencer par la bataille de Liège et la résistance des forts ? Comment les autorités et ... [more ▼]Comment, au fil des décennies, a-t-on célébré à Liège et dans sa région, le souvenir des événements d’août 1914, à commencer par la bataille de Liège et la résistance des forts ? Comment les autorités et les Liégeois eux-mêmes ont-ils contribué à construire la mémoire de ce mois tragique ? Comment, notamment, la presse locale a-t-elle rendu compte de ces manifestations ? Cette communication analyse l’évolution du contexte commémoratif liégeois de 1924 à 2004. Dans l’entre-deux-guerres, le souvenir d’août 1914 est extrêmement vif : les rescapés sont encore très nombreux, la germanophobie s'exprime avec force et le contexte international interfère puissamment sur la commémoration. Après la Seconde Guerre, un triple enjeu s’impose : gérer la concurrence ou la confusion de la mémoire et du souvenir entre les deux conflits mondiaux, entretenir la flamme de ce souvenir alors que le temps s’écoule et que les survivants se raréfient, et enfin appréhender un contexte international, lié notamment à la guerre froide, dans lequel l’Allemagne (de l’Ouest) est avant tout un partenaire politique et économique. En outre, dès les années 1970 mais surtout 1980, l'idée d'un tourisme mémoriel se fraie un chemin dans une région en pleine reconversion économique. [less ▲]Detailed reference viewed: 13 (0 ULg) Le poids d'août 1914 dans les relations belgo-allemandes (1914-1964)Brüll, Christoph Conference (2014, August 20)Detailed reference viewed: 5 (1 ULg) Metropolitan governance rescaling in Belgium, France and United Kingdom. Studying boundaries of urban governments through the application of an analytical framework for institutional changes.Breuer, Christophe Conference (2014, August 20)Second tier European cities (small metropolis or regional cities) are subject to permanent reconfigurations of their governance. These changes are the response to both external and internal ... [more ▼]Second tier European cities (small metropolis or regional cities) are subject to permanent reconfigurations of their governance. These changes are the response to both external and internal transformations. On the one side, they are facing external pressures as increased competition between cities, European integration, legislative evolution or paradigm switch. On the other side, cities are dealing with internal problems: urban sprawl, socio-spatial segregation, actors’ fragmentation, financial issues, etc. These tensions renew themselves and take various shapes. They are wondering cities governance and ways to manage them. To cope with new challenges in a new context, cities are trying to reconfigure their collective action in a new spatiality and with new coordination modes. In this context, inherited institutional boundaries – that could be seen as obsolete or inadequate in a changing World – are particularly under pressure. Cities governments and their spatial limits are a central issue for researchers, politicians and urban actors, and a major component of the urban or metropolitan governance. Although second-tier cities are an essential part of the “polycentric system of European cities”, attention has essentially been focused on large metropolis and capital cities, where the problem occurred earlier. Furthermore, there is an extended literature on institutional change and the “rescaling”, but research mainly focused on the response of cities to economic changes; few analysis offer a good comprehension of particular trajectories and evolution of cities limits which are highly embedded in local context. These shortcomings make the reading of contemporary mutations particularly complex for local actors. Our paper presents our research on the development and the validation of an analytical framework to interpret changes in cities’ governments boundaries. We improved and used a framework based on institutional change and social change, which combined both institutional design theories and self-organization theories. The analytical framework had been tested on the last decades government limits changes of regional cities and small metropolis in France (Saint-Étienne, Metz), United Kingdom (Sheffield) and Belgium (Liège, Brussels). The research was carried on with historical and geographical data collected during research stays in each of these cities: historical evolution of cities limits, legislation’ development, urbanization trajectory, etc. The research leads to some conclusions. Firstly, it is possible to develop a generic analytical framework to identify and interpret mutations of city government limits. This framework helps to make a systematic identification of actors’ dynamics, internal or external pressure and spatial changes, and go ahead apparent dichotomy between quick adjustment and high stability of some governance configuration. Secondly, the analytical model shows there is a common scheme of city limits evolution, which is driven among others things by European common dynamics (specifically economic and political dynamic). Thirdly, despite similarities in cities government boundaries changes, the analytical model demonstrates the importance of local contexts to understand individual evolutions and the specific trajectory of a city’ limits. [less ▲]Detailed reference viewed: 21 (6 ULg) Mitigation strategies versus Adaptation strategiesGengler, Nicolas Conference (2014, August 17)Detailed reference viewed: 10 (3 ULg) Metropolitan governance of European medium-size cities. Linking cities trajectories and mode of governance.Breuer, Christophe Conference (2014, August 16)In the past few years, an increased attention has been paid to the effect of governance on regional development and trajectories. It is commonly argued by scholars and practitioners that governance is a ... [more ▼]In the past few years, an increased attention has been paid to the effect of governance on regional development and trajectories. It is commonly argued by scholars and practitioners that governance is a key factor of regional competitiveness and differentiation. In this context, some institutions as the Organization for Economic Co-operation and Development (OECD), the United Nations (UN) or the European Commission (EC) claim that a better governance (or actually “good governance”) leads to better places to live, enhanced competitiveness and less segregation. In the same time, research, public efforts and investments has been focused on metropolitan regions as lever for economic development. If there is a consensus on the role of governance on metropolitan and urban development, researches mainly focused on cases analysis and bigger metropolis regions. Few empirical studies tried to link metropolitan governance and metropolitan trajectories in European Union, particularly for medium-size cities and metropolitan area (100.000 - 1.000.000 inhabitants), which represents a significant proportion of the European population and economy. Nowadays, some exploratory researches based on the Urban Audit (European Commission) and complementary surveys give us additional information on governance of such cities. In our research, we aimed to explore the link between metropolitan governance of medium-sized cities and their trajectories. We used latest data from the European Commission (Urban Audit, Perception survey, Regional Statistic Database - Eurostat) and additional sources for socio-economic, environmental and governance indicators (especially metropolitan governance typology). We integrated in our work previous researches on this topic. Our exploratory research pointed out pattern and similarities in European medium-sized cities governance and trajectories. Despite some difficulties to distinguish governance effects to other determinants of well-being and competitiveness, it opens questions on “governance matters” leitmotiv, public policy adequacy and innovation capacity in European cities. [less ▲]Detailed reference viewed: 18 (6 ULg) Mapping key pollutants in the English Channel region: the Channel Catchments Cluster (3C) cross-border projectRichir, Jonathan ; Pini, Jennifer; Watson, GordonConference (2014, August 16)The EU Water Framework Directive was a response to concerns about the previous disparate ways in which water quality was managed under Member State law and early European Directives. Within this context ... [more ▼]The EU Water Framework Directive was a response to concerns about the previous disparate ways in which water quality was managed under Member State law and early European Directives. Within this context, the Interreg IVA France (Channel) England Region established the ‘sustainable environmental development of this common space’ as one of its priorities to integrate areas that face common problems. The wide variety of cooperative cross-border projects have brought together UK and French scientists and environmental managers to develop practical environmental management tools for the region (3Cs cluster). Using the Solent in the UK as a case study, maps of key pollutants (e.g. metals such as Zn and Cu) will be produced to assess their spatial diversity within the sediment. The incorporation of historical datasets will also provide a temporal component. The inclusion of bioavailable fractions (using sequential extraction methods) will enable the pollutants to be linked to the tissue concentrations of key benthic species such as the polychaete Nereis virens and possible impacts. Not only will this information provide a detailed account of the water quality of key areas of the English Channel, but it will also highlight the gaps in the data and sampling regimes that are necessary to achieve good environmental status for the future, thus ensuring more effective European environmental policy regarding the long-term protection and conservation of aquatic ecosystems. [less ▲]Detailed reference viewed: 16 (0 ULg) Operational identification of fallback fruit species for a western lowland gorilla population in southeast CameroonPetre, Charles-Albert ; Tagg, Nikki; Haurez, Barbara et alConference (2014, August 15)Detailed reference viewed: 8 (3 ULg) Niche conservatism and conservation biology of Lepilemur in northwest MadagascarWilmet, Leslie ; Vermeulen, Cédric ; Schwitzer, Christoph et alConference (2014, August 14)The main goals of our study is to verify the existence and extent of niche conservatism in three closely related species within the genus Lepilemur, and to draw conclusions on the applicability of ... [more ▼]The main goals of our study is to verify the existence and extent of niche conservatism in three closely related species within the genus Lepilemur, and to draw conclusions on the applicability of conservation protocols to a broader array of Lepilemur species. The genus is an exemplary of the mammalian fauna of Madagascar which high biological diversity is under increasingly severe threat from anthropogenic degradation of its forest habitats. This study focuses particularly on three poorly-known Lepilemur taxa: L. sahamalazensis, L. dorsalis and L. mittermeieri, uplisted into one of the threatened categories of the IUCN Red List.The genus is particularly negatively affected by deforestation and habitat fragmentation and all have a small distribution range, fairly small total populations. Their pattern of distribution appears to have been established through vicariant speciation, probably driven by changes in the configuration of the hydrographic system. Such a pattern permits to expect a high level of niche conservatism. We present here our preliminary results of an exploratory mission on 1) evaluation of Lepilemur abundance in forest patches on the Ampasindava Peninsula, the Sahamalaza Peninsula and the Manongarivo Special Reserve 2) sleeping sites characteristics of the three studied species. [less ▲]Detailed reference viewed: 17 (3 ULg)