References of "Unpublished conference"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics 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 801 to 900 of 14351     4 5 6 7 8 9 10 11 12 13 14     Auroral signatures of reconnection at Saturn and comparison with EarthRadioti, Aikaterini Conference (2014, July)Detailed reference viewed: 6 (1 ULg) HD 97658 and its super-Earth. Spitzer & MOST transit analysis and modeling of the host starVan Grootel, Valérie ; Gillon, Michaël ; Valencia, D. et alConference (2014, July)Super-Earths transiting nearby bright stars are key objects that simultaneously allow for accurate measurements of both their mass and radius, providing essential constraints on their internal composition ... [more ▼]Super-Earths transiting nearby bright stars are key objects that simultaneously allow for accurate measurements of both their mass and radius, providing essential constraints on their internal composition. We present here the confirmation, based on Spitzer transit observations, that the super-Earth HD 97658 b transits its host star. HD 97658 is a low-mass ($M_*=0.77\pm0.05\,M_{\odot}$) K1 dwarf, as determined from the Hipparcos parallax and stellar evolution modeling. To constrain the planet parameters, we carry out Bayesian global analyses of Keck-HIRES radial velocities, and MOST and Spitzer photometry. HD 97658 b is a massive ($M_P=7.55^{+0.83}_{-0.79} M_{\oplus}$) and large ($R_{P} = 2.247^{+0.098}_{-0.095} R_{\oplus}$ at 4.5 $\mu$m) super-Earth. We investigate the possible internal compositions for HD 97658 b. Our results indicate a large rocky component, by at least 60% by mass, and very little H-He components, at most 2% by mass. We also discuss how future asteroseismic observations can improve the knowledge of the HD 97658 system, in particular by constraining its age. Orbiting a bright host star, HD 97658 b will be a key target for coming space missions TESS, CHEOPS, PLATO, and also JWST, to characterize thoroughly its structure and atmosphere. [less ▲]Detailed reference viewed: 14 (1 ULg) L'empowerment des patients: pourquoi et comment.BASSLEER, Bernard ; BOULANGER, Jean-Marie ; MENOZZI, Christel Conference (2014, July)La participation du patient à ses soins et surtout son implication dans son projet de vie, depuis la loi des droits du patient, ont accéléré la réflexion sur son encadrement, principalement dans les ... [more ▼]La participation du patient à ses soins et surtout son implication dans son projet de vie, depuis la loi des droits du patient, ont accéléré la réflexion sur son encadrement, principalement dans les maladies chroniques, pour faciliter sa sortie d’hospitalisation et son autonomisation. Nous en passons en revue les éléments principaux et nous suggérons quelques pistes simples. [less ▲]Detailed reference viewed: 36 (2 ULg) Mars dayglow reviewStiepen, Arnaud Conference (2014, July)Detailed reference viewed: 13 (1 ULg) 3D MODELING OF SHEAR STRESS DEVELOPMENT DURING NEOTISSUE GROWTH IN A PERFUSION BIOREACTORGuyot, Yann ; Papantoniou, Ioannis; Schrooten, Jan et alConference (2014, July)Detailed reference viewed: 26 (6 ULg) Usuing the Arctic Environment Test Basin to study the dynamics of dissolved organic matter in sea iceThomas, D.N.; Zhou, Jiayun ; Kaartokallio, H. et alConference (2014, July)This is a report from the INTERICE 5 project that used the Arctic Environment Test Basin at HSVA from 21 May to 19 June 2012. The overarching aim was to investigate the physical and biological controls of ... [more ▼]This is a report from the INTERICE 5 project that used the Arctic Environment Test Basin at HSVA from 21 May to 19 June 2012. The overarching aim was to investigate the physical and biological controls of dissolved organic matter incorporation into growing sea ice and the effect of melting once the ice had consolidated. Measurements were also made on the CO2 fluxes at the ice surface in relation to the chemical and biological changes taking place in the ice. The Interice 5 team was a multidisciplinary group of glaciologists, chemists and microbiologists from Belgium, Denmark, Finland, Germany and U.K. They were able to build on the experiences of previous INTERICE 2, 3 & 4 projects to maximize the opportunities from the facility. The preliminary results from the experiment will be presented, in the context of what is known about these processes from field campaigns. [less ▲]Detailed reference viewed: 11 (0 ULg) Recollection and familiarity in normal and pathological agingBastin, Christine Conference (2014, July)Detailed reference viewed: 18 (2 ULg) Which are the determinants of homeownership ? A logit analysis for the case of BelgiumXhignesse, Guillaume ; Bianchet, Bruno ; Cools, Mario et alConference (2014, July)In market-oriented economies, high rates of homeowners are traditionally associated with positive economic effects and externalities. For this reason, public authorities have encouraged homeownership for ... [more ▼]In market-oriented economies, high rates of homeowners are traditionally associated with positive economic effects and externalities. For this reason, public authorities have encouraged homeownership for the last decades through taxation or subsidies policies. In Belgium, owner-occupation has been promoted since the end of the nineteenth century and homeownership policy is considered as a key element of the Welfare state. Furthermore, the effectiveness of these policies is fundamentally based on a clear understanding of what determines homeownership. Therefore, the analysis of tenure determinants can provide inputs for the definition or the renewal of housing, taxation and subsidies policies. Considering this interest, this paper investigates the issue of housing tenure in Belgium. On the basis of previous related research, a model of tenure choice is estimated using a sample of 6,962 households. The observations follow clearly the general trends described for other countries. Higher income and age, couple status and the presence of dependent children have positive influences on homeownership. In addition, locations presenting a high density of population and a high centrality are associated with a lower probability of homeownership compared with other areas. The underlying significations of these variables are discussed in the paper. [less ▲]Detailed reference viewed: 117 (53 ULg) Model reduction of geometrically exact structures formulated on the Lie group SE(3)Sonneville, Valentin ; Bruls, Olivier Conference (2014, July)Detailed reference viewed: 17 (4 ULg) Peculiar polarization and shape properties of Barbarian asteroids: A campaign for their physical characterizationDevogele, Maxime ; Hanus, J.; Tanga, P. et alConference (2014, July)A few years ago, asteroid polarimetry allowed to discover a class of asteroids exhibiting peculiar phase polarization curves, collectively called "Barbarians" (a dozen are known) from the prototype of ... [more ▼]A few years ago, asteroid polarimetry allowed to discover a class of asteroids exhibiting peculiar phase polarization curves, collectively called "Barbarians" (a dozen are known) from the prototype of this class, the asteroid (234) Barbara. All such objects belong to the taxonomic classes L, Ld, and K, all related to the general S-complex. However, the "Barbarian" polarimetric properties are not found among all known L-class asteroids. Therefore, we cannot be sure that composition is the only and one responsible of the wide negative polarization branch. On the other hand, it was also suggested that a peculiar distribution of incidence/diffusion angles, resulting from the presence of large concavities on the object surface, could play a role in the polarimetric behaviour. Based on such motivations, we are running a systematic campaign for shape determination at the C2PU telescope of the Observatoire de la Côte d'Azur (Calern site) and several other sites in the world. By using photometric inversion techniques we hope to obtain indications on the presence of concavities. [less ▲]Detailed reference viewed: 6 (1 ULg) Board attributes and accounting conservatism: Evidence from French firmsBoussaid, Nabila ; Sougné, Danielle ; Hamza, TaherConference (2014, July)Detailed reference viewed: 37 (15 ULg) Gay and Lesbian Families Well-Beeing: Respectively Ten and Seven years after the legalization of Same-sex Marriage and Same-sex Adoption in Belgium, understanding heterosexual adults' attitudes.Scali, Thérèse ; D'Amore, Salvatore ; Green, Robert-JayConference (2014, July)Belgium is one of the first European country to legalize marriage and adoption for same-sex couples (respectively in 2003 and 2006) and to state anti-discrimination laws (2008). Despite the legalization ... [more ▼]Belgium is one of the first European country to legalize marriage and adoption for same-sex couples (respectively in 2003 and 2006) and to state anti-discrimination laws (2008). Despite the legalization, what can we say about adults’ attitudes? This study is part of an international project, and aims at studying the attitudes towards different kind of same-sex constellations – single gays and lesbians, couples, and families – and at examining the correlates to those attitudes. Attitudes were assessed through self-report questionnaires in a cohort of 366 heterosexual participants resident in Belgium, 72% females and 28% males aged from 26 to 40 (age class corresponding to transition lifecycle and parenting choices). Participants were asked to answer socio-demographic questions and to self-report their contact with homosexual people (frequency and satisfaction). Then different scales assessed their attitudes toward homosexuality (General Attitudes Toward Homosexuality, Da Costa, 2011; ATLG, Herek), same-sex marriage (Katuzny Scale on Same-Sex Marriage, 2012) and different types of same¬-sex parenting – adoption, alternative insemination, in vitro, ovocyte donation (D’Amore & Green Homoparentality Scale, 2012). It is hypothesized that correlates to positive attitudes will be associated with female gender, lower religiosity, non-protestant religions, liberal political ideology, and higher education and socioeconomic status. This presentation contributes to a better understanding of Belgian’s attitudes toward same-sex couples and same-sex families, by measuring the predictive variables of positive and negative attitudes. [less ▲]Detailed reference viewed: 387 (10 ULg) Identifying codes in vertex-transitive graphsGravier, Sylvain; Parreau, Aline ; Rottey, Sara et alConference (2014, July)We consider the problem of computing identifying codes of graphs and its fractional relaxation. The ratio between the optimal integer and fractional solutions is between 1 and 2 log(|V|) where V is the ... [more ▼]We consider the problem of computing identifying codes of graphs and its fractional relaxation. The ratio between the optimal integer and fractional solutions is between 1 and 2 log(|V|) where V is the set of vertices of the graph. We focus on vertex-transitive graphs for which we can compute the exact fractional solution. There are known examples of vertex-transitive graphs that reach both bounds. We exhibit infinite families of vertex-transitive graphs with integer and fractional identifying codes of order |V|^a with a in {1/4, 1/3, 2/5}. These families are generalized quadrangles (strongly regular graphs based on finite geometries). They also provide examples for metric dimension of graphs. [less ▲]Detailed reference viewed: 19 (5 ULg) Mars aurora reviewStiepen, Arnaud Conference (2014, July)Detailed reference viewed: 21 (2 ULg) THE CONCEPT OF ECONOMIC SECURITY OF THE ORGANIZATION (ESO): A NEW INSTRUMENT FOR PUBLIC MANAGERS?Shutyak, Yuliya ; Danylenko, Olena; Van Caillie, Didier Conference (2014, July)Detailed reference viewed: 24 (1 ULg) How tDCS can help patients with disorders of consciousness?Thibaut, Aurore Conference (2014, July)Detailed reference viewed: 13 (1 ULg) Does neoadjuvant radiotherapy and the timing of surgery modify metastatic dissemination?Leroi, Natacha ; BLACHER, Silvia ; Marée, Raphaël et alConference (2014, June 29)Detailed reference viewed: 15 (3 ULg) Workshop on Pitch Analysis for SingingLarrouy, Pauline Conference (2014, June 28)Two methods are actually used in order to determine if a vocal performance is “in tune” or “out of tune”, to better understand the causes of poor-pitch singing or to evaluate the quality/progression of a ... [more ▼]Two methods are actually used in order to determine if a vocal performance is “in tune” or “out of tune”, to better understand the causes of poor-pitch singing or to evaluate the quality/progression of a singer. The "subjective" method makes use of judges whereas the "objective" method uses computer tools to perform pitch analysis and to estimate the accuracy of sung performances. While the first method allows a rapid assessment, it lacks precision, which explains that the “objective” method seems currently preferred. However, several computer tools are available and each laboratory has its preference. In addition, the analytical procedure will depend on the purpose and data of the study. This workshop aims to provide an overview of the tools available and to discuss the advantages and limitations of existing methods. [less ▲]Detailed reference viewed: 12 (3 ULg) Les botanistes verviétois au XIXème siècleGenin, Vincent Conference (2014, June 28)Detailed reference viewed: 37 (8 ULg) Le questionnaire en recherche !Pétré, Benoît ; Guillaume, Michèle Conference (2014, June 28)Les pratiques médicales et paramédicales doivent prendre appui aujourd’hui sur les données dites probantes. Autrement dit, les données issues de la recherche guident l’action des professionnels de santé ... [more ▼]Les pratiques médicales et paramédicales doivent prendre appui aujourd’hui sur les données dites probantes. Autrement dit, les données issues de la recherche guident l’action des professionnels de santé! La qualité des résultats attendus au terme d’un processus de recherche dépend profondément de la qualité de l’outil de collecte des données utilisé. Parmi les outils disponibles, le questionnaire est certainement celui le plus utilisé dans le domaine de la recherche médicale et paramédicale. Si la conception d’un questionnaire parait simple aux premiers abords, une lecture plus fine des principes qui sous-tendent la mesure (fidélité, validité, objectivité) rend compte des difficultés rencontrées pour développer un outil de qualité. Après avoir resitué le questionnaire dans le processus plus général de la recherche, les étapes de construction du questionnaire seront précisées et les qualités de l’outil seront discutées. Cette présentation permettra la mise en lumière des avantages et des limites inhérentes au questionnaire. Il sera démontré que nul questionnaire n’est parfait et que les inférences et les interprétations qui peuvent être tirées des informations recueillies à partir de cet outil, doivent être réalisées avec précaution. [less ▲]Detailed reference viewed: 28 (10 ULg) Pitch fluctuations in accurate and inaccurate singers: are they the same?Larrouy, Pauline ; Pfordresher, Peter QConference (2014, June 28)The research presented here attempts to explore the fine-control of pitch during singing among accurate occasional singers and individuals whose singing reflects a Vocal Pitch Imitation Deficit (VPID ... [more ▼]The research presented here attempts to explore the fine-control of pitch during singing among accurate occasional singers and individuals whose singing reflects a Vocal Pitch Imitation Deficit (VPID). Most past research addresses individual differences at the level of entire sung notes or melodies. By contrast, in the present research we addressed whether VPID singers differ from accurate singers with respect to the way to reach, maintain, and stop a sung tone. In order to describe the “scoops” at the beginning and ends of tone, as well as other forms of instability, we adapted the model of Large et al. (2002), originally designed to model entrainment of timing during synchronization. This model was applied to 1461 notes performed by 12 VPID and 17 accurate singers from the database of Pfordresher and Mantell (2014). Finally, the parameter values across the VPID and accurate singers were compared. The results showed that the model fits tones performed by accurate and VPID singers similarly well. As expected, the median pitch across the entire sung note deviated from the target to imitate for VPID singers; at the same time, the proportion of these deviations that were overshoots (“sharp”) versus undershoots (“flat”) were the same for VPID and accurate singers (2/3rd under and 1/3rd above). Thus accurate and VPID singers differ in the magnitude but not the type of overall deviation they exhibit. Whereas no difference occurred between the singers regarding the direction of the scoop (up or down) at the start and the end of the tone, the amplitude of the scoops was significantly different between VPID and accurate singers. The present study highlights the difficulty of VPID singers to reach and stop a sung tone, which supports the hypothesis of a fine motor control deficit in this population. Furthermore, the pitch fluctuations described by the model would have to be investigated in research on pitch accuracy perception. [less ▲]Detailed reference viewed: 30 (1 ULg) "La leçon d'Anatomie nerveuse"Bonnet, Pierre Conference (2014, June 27)Detailed reference viewed: 29 (5 ULg) Optimizing the geometrical accuracy of 2D curvilinear finite element meshesRemacle, Jean-François; Lambrechts, Jonathan; Toulorge, Thomas et alConference (2014, June 27)Detailed reference viewed: 11 (0 ULg) AN INTEGRATED APPROACH FOR THE MANAGEMENT OF INHERITED DISORDERS IN BELGIAN BLUE CATTLE BREED IN BELGIUMSartelet, Arnaud ; Chapon, Samuel; Fasquelle, Corinne et alConference (2014, June 27)Detailed reference viewed: 31 (5 ULg) Enforcement of accounting standards and their impact on the consistent application of IFRSYammine, Mira ; Olivier, HenriConference (2014, June 27)The objective of this study is to determine the impact of enforcement of accounting standards on earnings management. In line with previous studies, we have selected timely loss recognition, small ... [more ▼]The objective of this study is to determine the impact of enforcement of accounting standards on earnings management. In line with previous studies, we have selected timely loss recognition, small positive income, and earnings variability as proxies for earnings management. In order to reach our objective, we have defined our enforcement indexes using a survey on enforcement activities. The survey was prepared and sent directly to the institution oversight bodies that have an enforcement power on the application of IFRS in the studied countries. We find that the existence of an effective enforcement body that supervises the implementation and application of IFRS has reduced the frequency of large losses recognition, and have some impact in some situations on small positive income and earnings variability. Other tests are performed on specific enforcement activities such as pre-clearance and the sanctions imposed by the judicial system in a country. The study opens the door for additional investigations in the area of enforcement activities. [less ▲]Detailed reference viewed: 21 (5 ULg) The international policy tools seen by non-state actors: The Convention on diversity of cultural expressions and the Coalitions for Cultural DiversityVlassis, Antonios Conference (2014, June 26)Detailed reference viewed: 14 (0 ULg) "La leçon d'Anatomie: Anatomy of a disaster: where are you when a complication happens?"Bonnet, Pierre Conference (2014, June 26)Detailed reference viewed: 13 (0 ULg) Changements et enjeux définitionnels dans l’approche partisane. Entre changement "de" et changements/turbulences "dans la" trajectoire d’un problème publicPiet, Grégory Conference (2014, June 26)Detailed reference viewed: 36 (1 ULg) Bone markers in patients with CKDCAVALIER, Etienne Conference (2014, June 26)Detailed reference viewed: 11 (0 ULg) A probabilistic model of the adhesive contact forces between rough surfaces in the MEMS stiction contextHoang Truong, Vinh ; Wu, Ling ; Arnst, Maarten et alConference (2014, June 26)Stiction is a common failure mechanism in microelectromechanical systems (MEMS) in which two interacting bodies permanently adhere together. This problem is due to the comparability of adhesive surface ... [more ▼]Stiction is a common failure mechanism in microelectromechanical systems (MEMS) in which two interacting bodies permanently adhere together. This problem is due to the comparability of adhesive surface forces (e.g. Van der Waals forces, capillary forces) and body forces in the MEMS context. To predict the adhesive contact forces coupled with stiction phenomenon, the combination of the Nayak statistical approach with the asperity-based theories is a common solution. However, this method contains some limitations due to the underlying assumptions: infinite size of the interacting rough surfaces and negligibility of asperity interactions. Furthermore, the Nayak solution suffers from a considerable dependency on the choice of the minimum wave length considered in the surface representation, which remains diXcult to select. The main goal of our research is to propose an improved method (i) which accounts for the Vnite size of the interacting surfaces, (ii) accounts for the uncertainties related to these surface topologies, (iii) in which the minimum wave length selection is physically based, and (iv) in which the validity of the asperity-based theories is demonstrated. From the topology measurements of MEMS samples, an analysis of the power spectral density function is carried out to determine the minimum relevant wave length for the problem of interest (here capillary stiction). We also show that at this scale of interest the asperity-based theories remain valid for polysilicon materials. Moreover, instead of considering inVnite surfaces as in the Nayak approach, a set of surfaces, whose sizes are representative of the MEMS structure, is generated based on the approximated power spectral density analysis and using the Monte Carlo method. From this description of the contacting surfaces, the adhesive contact forces can be evaluated by applying the asperity contact theories, leading to a probabilistic distribution of the adhesive contact forces. In addition, as the contact forces are rooted from the micro-scale adhesive forces, while their consequence, stiction, happens at the macro-scale of the considered device, the multi-scale nature of the phenomenon is accounted for. To predict this macro-scale behavior in a probabilistic form, the uncertainty quantiVcation process is coupled with a multiscale analysis. [less ▲]Detailed reference viewed: 79 (15 ULg) Détection de l'érosion dans un bassin versant agricole par comparaison d'images multidates acquises par droneLisein, Jonathan ; Pineux, Nathalie ; Pierrot-Deseilligny, Marc et alConference (2014, June 26)Detailed reference viewed: 74 (13 ULg) Vehicle routing problems with multiple trips: using specific local search operatorsArda, Yasemin ; Crama, Yves ; François, Véronique et alConference (2014, June 25)In vehicle routing problems with multiple trips (VRPM), each vehicle is allowed to perform more than one trip during its working period. Classical solution techniques for this problem make use of existing ... [more ▼]In vehicle routing problems with multiple trips (VRPM), each vehicle is allowed to perform more than one trip during its working period. Classical solution techniques for this problem make use of existing VRP heuristics to create trips, together with bin packing methods aimed at assigning these trips to the available vehicles. The first contribution of this work is to propose specific local search operators for the VRPM. The operators directly integrate the multi-trip structure of the problem within well-known VRP operators. As a second contribution, heuristics using these operators are compared with classical solution techniques mentioned above. The comparison is performed by using the adaptive large neighborhood search metaheuristic as a common basis for both methods. The most classical version of the problem is studied as well as a variant involving time windows [less ▲]Detailed reference viewed: 68 (7 ULg) Trait decoupling promotes evolutionary diversification of the trophic and acoustic system of damselfishesFrederich, Bruno ; Olivier, Damien ; Litsios, Glenn et alConference (2014, June 25)Detailed reference viewed: 22 (0 ULg) A wavelet leaders-based climate classification of European surface air temperature signalsDeliège, Adrien ; Nicolay, Samuel Conference (2014, June 25)We present the wavelet leaders method as a tool to study the pointwise regularity of signals, which is closely related to some functional spaces. We use the associated multifractal formalism to show that ... [more ▼]We present the wavelet leaders method as a tool to study the pointwise regularity of signals, which is closely related to some functional spaces. We use the associated multifractal formalism to show that the 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: 8 (5 ULg) Study of virus-like particles of human papillomavirus (HPV-VLP) by capillary electrophoresisBettonville, Virginie ; Bastin, Renaud ; Thelen, Nicolas et alConference (2014, June 25)Detailed reference viewed: 40 (26 ULg) La cartographie cognitive des chargés de relations partenariales en processus de sélection des opérateurs privés.Remy, Céline Conference (2014, June 24)Detailed reference viewed: 11 (2 ULg) Compact SPR-based ecthing rate monitoring device for the study of polymers exposed to space plasmaFleury-Frenette, Karl ; Lenaerts, Cedric ; Hastanin, Juriy Conference (2014, June 24)Detailed reference viewed: 11 (0 ULg) Turning land to livelihood : what are the socio-economic and institutional determinations of local land use in Red River Delta region ?Nguyen Thi, Dien; Lebailly, Philippe ; Vu Dinh, TonConference (2014, June 24)This research analyzes the determinations of household land use strategy in the context of the rapid rural changes due to the industrialization and urbanization in Vietnam. The mechanism that turns land ... [more ▼]This research analyzes the determinations of household land use strategy in the context of the rapid rural changes due to the industrialization and urbanization in Vietnam. The mechanism that turns land to livelihood from both productive and non-productive processes is investigated to understand the different land use strategies of smallholders in Red River Delta region. Based on the presence of migrating members, the total selected 191 households in Hai Duong province were divided into 3 different groups to do the surveys. The research results show that local land use strategies are various in which 79.06% of surveyed households maintain the allocated land for agricultural production while 65.97% of households leave land idly at least once a year. The factors from productive process such as small landholding, high production cost and overall downward income from agricultural production meantime the greater opportunities from non-farm jobs are the main socio-economical determinations of agricultural land abandonment or less effective use. The security questions of shifting livelihood between farming and non – farming sectors, the inter-household arrangements, the social supports and the institutional constraints are non-productive elements that make the exchange and other forms of commercializing agricultural land are less prominent. The complexity of household land use strategy and its determinations not only reflects the dynamism and flexibility of peasant’s livelihood adaptation but also explain why the land concentration does not proceed faster in Red River Delta region of Vietnam. [less ▲]Detailed reference viewed: 14 (5 ULg) Standardisation of 25(OH)-vitamin D assays: beware of limitationsCAVALIER, Etienne Conference (2014, June 24)Detailed reference viewed: 18 (0 ULg) A Phylogenomic analysis of the origin of plastidsCornet, Luc ; Javaux, Emmanuelle ; Wilmotte, Annick et alConference (2014, June 24)Cyanobacteria are a morphologically diverse phylum, with their first occurrence dating from the Precambrian. Oxygenic photosynthesis appeared in this group during the same geological period. Several ... [more ▼]Cyanobacteria are a morphologically diverse phylum, with their first occurrence dating from the Precambrian. Oxygenic photosynthesis appeared in this group during the same geological period. Several publications have established, without any doubt, that plastids (both primary and complex) form a monophyletic ensemble emerging from Cyanobacteria. However, the exact position of plastids within Cyanobacteria is still uncertain, with several recent papers leading to very different hypotheses. Here we present a phylogenomic analysis of the origin of plastids. Our study takes advantage of all the available genomes and thus represents the best taxonomic sampling seen so far: 140 genomes of Cyanobacteria, 101 genomes of plastids and 27 outgroups taken in Melainabacteria and Chloroflexi. It results in an analysis using state-of-the-art methods (e.g., orthology assessment using USEARCH and OrthoMCL, phylogenetic inference using CAT and CAT-GTR models) based on more than 160 protein alignments totalizing over 20,000 unambiguously aligned amino acids. To confirm our results, we performed gene jackknife inferences and gene reconciliation analyses on the same dataset. We expect that out approach accounts for potential phylogenetic artefacts due to changes in the evolutionary process having occurred when the guest cyanobacterium became an endosymbiont and eventually a plastid. Meanwhile, we improve the phylogeny of Cyanobacteria per se, notably because of the presence of Melainabacteria in our dataset. [less ▲]Detailed reference viewed: 89 (10 ULg) La dimension écologique du changement professionnel : Le cas des réformes de la psychiatrie en BelgiqueThunus, Sophie Conference (2014, June 24)Le changement des pratiques professionnelles est un enjeu de longue date dans le champ de la santé mentale en Belgique. Depuis les années 1970, les réformes se succèdent afin de stimuler l’évolution d’une ... [more ▼]Le changement des pratiques professionnelles est un enjeu de longue date dans le champ de la santé mentale en Belgique. Depuis les années 1970, les réformes se succèdent afin de stimuler l’évolution d’une psychiatrie résidentielle, dans laquelle l’hôpital psychiatrique est l’acteur central du système de soins, vers une psychiatrie communautaire et des pratiques de réseaux, en vertu desquels l’hôpital est un acteur parmi d’autres ressources psychosociales et communautaires. En 2010, les ministres en charge de la santé mentale annoncent la mise en place d’une nouvelle réforme. L’objectif est de substituer un modèle de soins fonctionnel au modèle institutionnel ; c’est-à-dire d’achever le processus de transformation du système entamé plusieurs décennies auparavant. A partir d’une analyse longitudinale des principales réformes belges de la psychiatrie et de la santé mentale (1974-1989-2007-2010), nous proposons de conceptualiser le champ comme composé d’écologies liées (Abbott, 1988), sous-tendues par un système d’action concret persistant (Michel Crozier & Friedberg, 1980; Erhard Friedberg, 1997), dont les dynamiques particulières font obstacle à l’implémentation des réseaux de soins communautaires. Ensuite, en nous reposant sur cette conceptualisation, nous formulons une problématisation alternative du changement des pratiques professionnelles, dépassant les thématiques de la défense des privilèges acquis, de l’autonomie dans le travail (Freidson, 1988), ou encore des luttes juridictionnelles (Abbott, 1988). Au niveau méthodologique, l’analyse repose sur une recherche documentaire approfondie (sources primaire et secondaire ; documents politiques et organisationnels) ainsi que sur des entretiens semi-directifs (n=45) et des observations (n=75) réalisées entre 2008 et 2014. [less ▲]Detailed reference viewed: 12 (1 ULg) Effects of Eisenia fetida on metal uptake by Vicia faba and Zea mays from polluted soilsLemtiri, Aboulkacem ; Liénard, Amandine ; Colinet, Gilles et alConference (2014, June 24)Detailed reference viewed: 39 (17 ULg) NMR in the Pharmaceutical and Biomedical areas for identification and quantification of drugs and metabolomics applicationsLAMBERT, Vincent ; Dufour, Gilles ; Chiap, Patrice et alConference (2014, June 23)Nuclear Magnetic Resonance (NMR) is probably, with mass spectrometry, the most powerful analytical tool for the structural determination of organic compounds. For a long time and due to technical ... [more ▼]Nuclear Magnetic Resonance (NMR) is probably, with mass spectrometry, the most powerful analytical tool for the structural determination of organic compounds. For a long time and due to technical limitations, the main applications of NMR were focused on chemistry (organic, inorganic and medicinal chemistry) or biochemistry (i.e. proteins and proteins ligands analysis). Indeed, despite of very interesting potential in terms of structural information, reproducibility, specificity, quantification, NMR suffered of a lack of sensitivity and sometime of resolution in the case of complex mixture analysis in comparison with other technics. However, since several years, important technical improvements such as huge increase in sensitivity, hyphenation of NMR with LC system, automation and development of 2D and presaturation sequences have opened new putative applications for NMR, specifically in the pharmaceutical and biomedical areas. Then, beside the mass and chromatographic technics classically used for drug analysis, NMR represents an interesting and complementary tool for many applications. In this presentation, we will describe some NMR applications related to the pharma area. Starting from the identification of xenobiotic metabolites by coupling LC-SPE-NMR data with LC-MS/MS results, quantification of cyclodextrines in complex media, identification of illicit compounds, we will finish with our recent metabolomics NMR developments. [less ▲]Detailed reference viewed: 46 (13 ULg) Multi-period vehicle assignment with stochastic load availabilityPironet, Thierry Conference (2014, June 23)This work investigates optimization techniques for a vehicle-load assignment problem. A company owning a limited fleet of vehicles wants to maximize its operational profit over an infinite horizon divided ... [more ▼]This work investigates optimization techniques for a vehicle-load assignment problem. A company owning a limited fleet of vehicles wants to maximize its operational profit over an infinite horizon divided into periods. The profit stems from revenues for transporting full truckloads and costs derived from waiting idle and moving unladen. The stochastic component of the problem arises from projections on the realization of each transportation order, i.e. load. The methodology is based on optimizing decisions for deterministic scenarios. Several policies are generated in this way, from simple heuristics to more complex approaches, such as consensus and restricted expectation algorithms, up to policies derived from network flow models formulated over subtrees of scenarios. Myopic and a-posteriori deterministic optimizations models are used to compute bounds allowing for performance evaluation. Tests are performed on various instances featuring different number of loads, graph sizes, sparsity, and probability distributions. Performances are compared statistically over paired samples. The robustness of various policies with respect to erroneous evaluations of the probability distributions is also analyzed. [less ▲]Detailed reference viewed: 6 (1 ULg) Beyond Corruption. The everyday life of a justice of the peace court in the Democratic Republic of CongoRubbers, Benjamin Conference (2014, June 23)Detailed reference viewed: 17 (0 ULg) Development of a multiplexed surface-enhanced Raman scattering quantitative approach for bisphenols detectionDe Bleye, Charlotte ; Dumont, Elodie ; Sacre, Pierre-Yves et alConference (2014, June 23)Over the last decade, bisphenol A (BPA) attracted a lot of attention. This molecule, commonly used as a precursor to produce epoxy-resin and plastics, is an endocrine disruptor presenting an estrogenic ... [more ▼]Over the last decade, bisphenol A (BPA) attracted a lot of attention. This molecule, commonly used as a precursor to produce epoxy-resin and plastics, is an endocrine disruptor presenting an estrogenic activity [1]. Despite its health toxicity, BPA is present in a broad variety of consumer goods released from plastic bottles and packaging for example. Since the discovery of its adverse health effect of BPA, the manufacturers tend to use structural analogues of BPA such as BPS, BPF and BPB to produce plastic materials [2]. However, the health safety of these molecules is still not demonstrated. Currently, bisphenols are actively researched and quantified using solid phase extraction and chromatography techniques which are time and solvents consuming. Therefore, it could be very interesting to quantify simultaneously bisphenols using a fast and “green” technique. Surface-enhanced Raman scattering (SERS) exalts dramatically the Raman scattering of molecules adsorbed or very closed to metallic surface enabling to detect very low amounts of analytes while keeping the structural information obtained from the spectrum which is very interesting to consider multiplexed analyses [3-4]. Moreover, SERS, which is a solvent free and fast acquisition technique, is an attractive tool in “Green Chemistry” [5]. In this context, the development of a multiplexed quantitative approach to detect bisphenol was considered. Silver nanoparticles (AgNps) were selected as SERS substrate and their functionalization was investigated taking into account the weak affinity of phenolic molecules for gold and silver surface [6]. Pyridine was selected as surface modifier and allowed to attract bisphenols around metallic surface thanks to hydrophobic interaction and hydrogen bonds [7]. Afterwards, the SERS samples preparation was optimized playing on the concentrations of pyridine and aggregating agent used to get the nanoparticles closer to each other which promotes the SERS effect. Tap water samples were spiked with different concentration of BPA from 5 ppb to 1000 ppb and analyzed using the optimized SERS sample preparation. A good linearity of the response was observed and a calibration curve with coefficient of determination (R2) of 0.9922 was obtained by plotting the intensity of a principal band of BPA versus the concentration. This last step was repeated using BPB as analyte and a calibration curve with a R2 of 0.9991 was obtained for the same range of concentration using a specific band intensity of BPB. Finally, tap water samples were spiked with different concentrations of BPA and BPB simultaneously and analyzed using SERS and it was possible to detect selectively the two molecules thanks to specific bands and a good linearity of the response was observed for both. To conclude, promising results were obtained which pave the way to “green” multiplexed quantitative analyses of very low concentrated analytes using SERS. References: [1] J.-H. Kang et al., Toxicology 226 (2006) 79-89 [2] C. Liao et al., J. Agric. Food Chem. 61 (2013) 4655-4662 [3] K. Kneipp et al., Chem. Rev. 99 (1999) 2957-2975. [4] R.F. Aroca et al., Adv.Colloid Interface Sci. 116 (2005) 45-61. [5] C. De Bleye et al., Talanta 116 (2013) 899-905. [6] X.X. Han et al., Anal. Chem., 83 (2011) 8582-8588. [7] B. San Vicente et al., Anal. Bioanal. Chem. 380 (2004) 115-122. [less ▲]Detailed reference viewed: 108 (12 ULg) The BCCM/ULC collection to safeguard and exploit polar cyanobacterial diversityWilmotte, Annick Conference (2014, June 21)Detailed reference viewed: 10 (1 ULg) Questions about Transference and Countertransference in the psychoanalytic work with homosexual patientsNaziri, Despina Conference (2014, June 21)Detailed reference viewed: 21 (1 ULg) Etude transfrontalière des besoins de formation en Education Thérapeutique du Patient pour la prise en charge du diabète de type 2 et de l’obésité:Enquête par méthode du groupe nominal auprès des professionnels de santéPétré, Benoît ; Ketterer, Frédéric ; Vanmeerbeek, Marc et alConference (2014, June 21)Detailed reference viewed: 30 (7 ULg) Paul Hymans et le Droit international (1919-1927). Arbitre belge de l’Europe, avocat des « petits pays »Genin, Vincent Conference (2014, June 21)Detailed reference viewed: 60 (21 ULg) Una proposta per la pubblicazione (e la lettura) intuitiva delle edizioni critiche occitaneValenti, Gianluca Conference (2014, June 20)Detailed reference viewed: 3 (0 ULg) Le français cadien, un français acadien? Enjeux sociaux d’une parenté linguistiqueArrighi, Laurence; Urbain, Emilie Conference (2014, June 20)Detailed reference viewed: 12 (1 ULg) The Belgian Tetris: assessing the political impact of metaphors on citizens' perceptions of Belgian federalismPerrez, Julien ; Reuchamps, MinConference (2014, June 20)In the literature, the political impact of metaphors has often been taken for granted from metaphor analysis in political discourse, be it elite discourse or media discourse. However, a more global ... [more ▼]In the literature, the political impact of metaphors has often been taken for granted from metaphor analysis in political discourse, be it elite discourse or media discourse. However, a more global understanding of what this political impact could consist of, is still lacking from the current research agenda. As Koller (2009:121) puts it: “metaphor helps construct particular aspects of reality and reproduce (or subvert) dominant schemas.” To be able to account for how metaphors, through discourses, actively shape the political reality, it is important to look at the relationships between metaphorical discourses and their environment. Based on the idea that metaphors do not only reflect the perceived reality, but also function as cues through which citizens come to understand complex political processes and through which they shape political behaviors, the aim of this study is precisely to look at how specific metaphors might impact on the citizens’ framing of Belgian federalism. To measure the impact of metaphors on the citizens’ political representations and attitudes, we developed an experimental set-up based on an article published in the Belgian newspaper Le Soir (13-14 July 2013) in which Belgian federalism was deliberately compared to a Tetris game. The original article included a picture and a text (208 words), which were used as authentic experimental material. For this experiment, we distinguished three experimental conditions and one control condition. In the first experimental condition (full condition), the participants were exposed to the original article (including the text and the picture). In the second and third experimental conditions, the participants were respectively exposed either to the text (text condition) or the picture (picture condition). In the control condition, the participants weren’t exposed to any metaphorical material at all. In the second stage of the experiment, the participants were asked to achieve three interrelated tasks: (i) a free description task, based on a free description of their own perception of Belgian federalism, (ii) an association task, in which they had to select a picture which they found the most appropriate to describe Belgian federalism, and finally (iii) a questionnaire measuring the participants’ political knowledge of Belgian federalism and attitudes towards its future development. In a post-test held four weeks after the first experiment, the three tasks of the second stage have been replicated. This experiment has been conducted in autumn 2013 among 400 students. Comparing the various experimental conditions will make it possible (i) to measure the impact of the Tetris metaphor on the citizens’ perceptions and representations of Belgian federalism, (ii) to assess to what extent the different metaphorical media differently contribute to this impact and (iii) to measure the long-term impact of this metaphor on the citizens’ political representations and attitudes. In answering these questions, this study will contribute to a better understanding of the role and functions metaphors play in political discourse, and more globally in our everyday political interactions. [less ▲]Detailed reference viewed: 39 (2 ULg) De l’exemple à la situation Corps et émotion dans Huis clos et en psychopathologieEnglebert, Jérôme Conference (2014, June 20)Detailed reference viewed: 17 (0 ULg) UPLC®-MSMS, an added-value for the development and the validation of analytical methods : follow-up of phytoestrogens from clover to milk.Daems, Frédéric Conference (2014, June 19)Detailed reference viewed: 8 (2 ULg) La résidence d'écrivain comme dispositif de médiation du littéraire : tentative de problématisationVandeninden, Elise Conference (2014, June 19)Detailed reference viewed: 18 (1 ULg) Un panorama du temps. Robida chroniqueur des Expositions universellesStienon, Valérie Conference (2014, June 19)Robida est familier des Expositions universelles. Sa carrière de dessinateur-journaliste est en grande partie rythmée par les événements sociaux qu’elles constituent. Il illustre le démontage de ... [more ▼]Robida est familier des Expositions universelles. Sa carrière de dessinateur-journaliste est en grande partie rythmée par les événements sociaux qu’elles constituent. Il illustre le démontage de l’Exposition de Paris de 1867 dans le Journal Amusant du 9 novembre 1867. Il est envoyé à Vienne comme dessinateur-correspondant du Monde illustré pour celle de 1873. Il visite l’Exposition de 1889 et en rend compte en double-page dans La Vie Parisienne du 11 mai 1889 (« Demandez, l’inauguration officielle de la Tour ! »). Enfin, il participe activement à l’Exposition de 1900 avec la reconstitution minutieuse, pendant près de deux ans, du « Vieux Paris », une attraction à succès située entre le Pont de l’Alma et la passerelle Debilly. En tant que manifestation très fréquentée, qui fait l’objet d’une abondante publicité et qui engage l’image d’une ville à dimension internationale, l’exposition dans ses diverses formes (universelle, internationale, industrielle) constitue un nouveau mode de communication et un lieu de sociabilité spécifique dans la seconde moitié du XIXe siècle. Le chroniqueur, le journaliste et le dessinateur sont amenés à commenter et à représenter ce type d’événement célébratif qui implique tout à la fois une esthétique de la monstration, une rhétorique publicitaire et une réflexivité patrimoniale sur le siècle. Lieu de présentation de l’innovation, animé par un imaginaire du progrès technique et industriel, l’exposition a pu ainsi constituer une matrice féconde pour l’œuvre d’anticipation de Robida. Cette communication propose d’examiner ce que la production de Robida doit aux discours et aux représentations liés aux Expositions universelles dans les deux décennies de 1880 et 1890. Des thématisations explicites, des visites fictives en mots et en images, ainsi qu’un abondant intertexte d’actualité témoignent de ce rapport à un discours social qui traverse une œuvre conjecturale ambiguë. Si les liens thématiques du Vingtième Siècle à l’Exposition Internationale d’Électricité de 1881 sont bien connus, il faut aussi envisager les aspects de la production de Robida qui impliquent le support journalistique. C’est le cas des dessins de presse qui préparent de manière critique la réception des Expositions, comme le montre la couverture de La Caricature du 16 juin 1886 faisant, trois ans à l’avance, l’éloge paradoxal du projet de métro aérien coupable d’encombrer le ciel parisien. C’est aussi le cas des inventions moquées dans sa correspondance fictive avec le dessinateur Christophe entre 1896 et 1901 dans « La Boîte aux lettres » du Petit Français illustré, où Robida-Théodule Asenbrouck imagine des machines telles que la « pince-scie-brosse-polissoir électrique » pour découper la Lune en douze tranches afin d’éclairer les grandes capitales, en particulier la Ville-Lumière. L’Exposition constitue également un cadre de transposition fictive créatif, comme en témoigne le récit sériel Jadis chez aujourd’hui du Petit Français illustré, imaginant Louis XIV et sa cour transportés à l’Exposition universelle de 1889 et visitant la Galerie des Machines avec un regard décalé sur l’époque contemporaine. Des éléments graphiques et stylistiques récurrents résultent de ce commentaire journalistique des Expositions, à l’image d’une tour Eiffel dont un seul pied suffit à constituer un indicateur chrono-topographique symbolisant la modernité contestée. Enfin, on peut considérer comment Robida prolonge à sa manière des inventions existantes, notamment dans l’illustration du texte d’Octave Uzanne La Locomotion future, paru dans Le Monde Moderne en 1895, ou avec la voiture aéroplane déclinée à partir du quadricycle Daimler apparu à l’Exposition de 1889. Le dialogue attentif et moqueur de Robida avec les projets et les discours des Expositions universelles permet de reconsidérer l’humour de l’anticipateur en le situant plus résolument dans les registres satirique et fantaisiste propres à prendre en charge les facéties du « feu congelé », du « poney-vapeur » ou du « perce-brouillard à hélice nasale », que dans la seule prospective pessimiste d’un génial visionnaire. Cet angle d’étude de l’œuvre d’anticipation offre aussi l’occasion d’examiner la part de l’intertexte d’actualité intervenant dans une pratique générique, graphique et éditoriale du panorama temporel. Entendons par là la littérature des guides pour visiteurs d’Expositions qui renoue avec une tradition des Petits-Paris initiée dans la littérature « panoramique » des années 1840. Ces parcours-découvertes balisés et ces bilans des curiosités urbaines ne sont pas sans évoquer ceux auxquels contribue Robida dans Le Vieux Paris. Guide historique, pittoresque et anecdotique (une cinquantaine de dessins), dans l’illustration du guide satirique L’Exposition comique (Dentu, 1889) ou encore dans le récit illustré du Dix-neuvième Siècle. S’ils s’articulent à un passé patrimonial sous la forme d’un inventaire du siècle qui se regarde réflexivement, ils ont aussi pu contribuer à l’anticipation en associant scènes dynamiques et vues d’ensemble dans un parcours temporel indissociable de ses dimensions topographiques. [less ▲]Detailed reference viewed: 23 (1 ULg) A wavelet-based analysis of surface air temperature regularityDeliège, Adrien ; Nicolay, Samuel Conference (2014, June 19)The aim of the talk is to present the "wavelet transform microscope" and the wavelet leaders method to show that surface air temperature signals of weather stations selected in Europe are monofractal, i.e ... [more ▼]The aim of the talk is to present the "wavelet transform microscope" and the wavelet leaders method to show that surface air temperature signals of weather stations selected in Europe are monofractal, i.e. all the points have the same Hölder (regularity) exponent. This study reveals that the information obtained in this way are richer than previous works studying long range correlations in meteorological stations. The approach presented here allows to bind the Hölder exponents with the pressure anomalies, and such a link does not exist with methods previously carried out. Moreover, this regularity is a signature of the type of climate the stations are associated to: indeed, it is possible to establish a climate classification of weather stations in Europe which matches the Köppen-Geiger climate classification. A blind test is performed in order to confirm the results, which can be partly explained by the influence of the North Atlantic Oscillation. This result could give rise to new criteria to determine the efficiency of current climatic models. [less ▲]Detailed reference viewed: 6 (3 ULg) The importance of the effects of mora debitorisCavalleri, Vanessa Conference (2014, June 19)Detailed reference viewed: 37 (7 ULg) Négociation du sens du travail et définition du groupe interprofessionnel : les cas des projets exploratoires dans le champ de la santé mentale en BelgiqueThunus, Sophie Conference (2014, June 19)Au printemps 2010, les ministres en charge de la santé publique ont annoncé la mise en place d’une grande réforme de l’organisation des soins de santé mentale en Belgique. Le modèle d’organisation à ... [more ▼]Au printemps 2010, les ministres en charge de la santé publique ont annoncé la mise en place d’une grande réforme de l’organisation des soins de santé mentale en Belgique. Le modèle d’organisation à mettre en place et le programme de la réforme étaient exposés dans un petit guide bleu distribué aux participants lors d’un événement national auquel assistaient les acteurs- clé du champ, notamment des professionnels de la santé mentale, les associations d’usagers, les responsables des organisations de soins locales, les autorités administratives régionales, des experts scientifiques. Cette réforme s’inscrivait dans un contexte international caractérisé par une mutation d’un modèle de soins basé sur la psychiatrie résidentielle, vers un modèle de soins de santé mentale communautaire. Au niveau Belge, la réforme était présentée comme l’étape ultime d’un processus qui aurait débuté à la fin des années 1990, par la mise en place de structures de soins alternatives et de projets exploratoires, pour aboutir en 2010, avec l’exploration et l’institutionnalisation progressive d’un modèle de soins résolument communautaire. Aussi, étant donné l’importance des enjeux institutionnels et professionnels associés à ce processus du changement, la réforme reposait sur un dispositif d’action publique original. Celui-ci impliquait directement les acteurs locaux en les invitant à participer à la définition de nouvelles modalités de travail, qui seraient progressivement évaluées et collectées par les autorités publiques. Dans cet article, nous proposons d’analyser ce processus de changement en le replaçant dans le processus temporel et dans le cadre institutionnel dans lequel il prend place. Effectivement, nous souhaitons mettre en évidence que les ressorts du changement, compris comme la capacité à mobiliser des pratiques professionnelles alternatives et des réseaux d’acteurs développés au cours des dernières décennies, sont difficilement compréhensibles en dehors d’une telle conceptualisation. De même, les jeux d’acteurs susceptibles de faire obstacle au changement, ou de lui donner des directions particulières, sont le fruit d’une construction sociale progressive, dont les premières bases ont été posées au lendemain de la seconde guerre. Cette approche du changement dans l’organisation du travail en santé mentale est principalement ancrée en sociologie de l’action collective et en sociologie des professions. Ces deux approches ont connu des évolutions spécifiques dont certaines se sont révélées pertinentes par rapport à notre domaine de recherche. Nous présentons ces développements dans la première partie de cet article, afin d’expliquer le cadre d’analyse qui sous-tend les deux parties suivantes. L’approche interactionniste du changement et les principaux concepts de la sociologie de l’action organisée sont centraux à ce cadre d’analyse. Ils supportent le récit de l’évolution du champ au cours des dernières décennies et celui de la réforme en cours, présentés dans les secondes et troisièmes parties de cet article. Ces deux récits alimentent à leur tour des considérations relatives aux conditions sociales et techniques dans lesquelles des pratiques professionnelles alternatives, ou « marginales », peuvent être utilisées au sein d’un processus de changement portant à la fois sur le modèle professionnel et institutionnel dominant le champ de la santé mentale. Ces considérations sont présentées dans la quatrième et dernière partie de cet article. [less ▲]Detailed reference viewed: 19 (1 ULg) Improving Remote Sensing Derived Dry Matter Productivity By Reformulating The Efficiency Factors: Case Studies For Wheat And MaizeDurgun, Yetkin Özüm ; Tychon, Bernard Conference (2014, June 18)Detailed reference viewed: 9 (0 ULg) Structure-morphology relationship of polyphosphate containing polymer micellesVanslambrouck, Stéphanie ; Clément, Benoit; Riva, Raphaël et alConference (2014, June 18)Detailed reference viewed: 14 (3 ULg) Using a rich internet application to teach histologyQuatresooz, Pascale ; Defaweux, Valérie ; Rollus, L et alConference (2014, June 18)Detailed reference viewed: 24 (9 ULg) The search for a core functionality network in chondrocyte differentiation using heuristic and genetic algorithmsKerkhofs, Johan Conference (2014, June 18)Introduction: In the growth plate a continuing process where cartilage is replaced by bone provides the fuel for bone growth until its closure towards the end of puberty. At the cellular level the growth ... [more ▼]Introduction: In the growth plate a continuing process where cartilage is replaced by bone provides the fuel for bone growth until its closure towards the end of puberty. At the cellular level the growth rate is maintained by proliferation and enlargement of maturing cells (hypertrophy). Mature cartilage cells (hypertrophic chondrocytes) secrete Ihh, a growth factor that induces expression of PTHrP, another growth factor, in immature proliferating chondrocytes. Since PTHrP in turn inhibits chondrocyte maturation, Ihh secretion limits the number of maturing chondrocytes through a negative feedback loop, striking a balance between proliferation and hypertrophy [Kronenberg, 2003]. Materials and methods: A gene network centering on the control of Ihh, PTHrP and transcription factors Sox9 and Runx2, which are the master regulators of early and late chondrocyte differentiation respectively, was manually constructed from literature. The dynamics of this network are simulated in a discrete framework that divides reactions into two speed classes. In this framework all interactions are considered additive, and each interaction is associated with a weight. Starting from the observation that the gene network must activate Runx2 in the presence of Ihh and Sox9 in the presence of Ihh and PTHrP, we investigate which edges are vital in achieving this. To this end, we employ both a heuristic and a genetic algorithm where the weights attached to the edges function as variables. In the heuristic algorithm weights are uniformly distributed in [0,1] and the means (based on 450 samples) of the weights that satisfy the above mentioned observations are contrasted with those that do not. If the difference of the means passes a certain threshold, the weight of the corresponding edge is fixed at 1. Results and discussion: Preliminary results from the heuristic algorithm show that fixing 14 weights (out of 147) is sufficient to match the biological observations in about 22% of cases, all other weights being selected randomly. The selected edges show that the BMP pathway is crucial in effecting a switch between hypertrophy in the absence of PTHrP and proliferation in its presence. This observation can be substantiated by earlier findings that BMP signalling plays a crucial role in prehypertrophic cells that are on the verge of hypertrophy [Yoon, 2006]. References: Kronenberg, 2003, Nature, 423:332-336; Yoon et al., 2006, Development, 133:4667-4678. [less ▲]Detailed reference viewed: 22 (1 ULg) Urban regeneration and the limitation of transaction costs in Wallonia: the "urban remembrement"Halleux, Jean-Marie Conference (2014, June 18)Detailed reference viewed: 24 (4 ULg) The potentiality of PDMAEMA-based polycation for cardiovascular applicationsFlebus, Luca ; Lombart, François ; Martinez, Lucia et alConference (2014, June 18)Detailed reference viewed: 16 (3 ULg) Adolescent male sexual offenders: pubertal timing, psychosocial functioning and sexual abuse: what links?Glowacz, Fabienne Conference (2014, June 17)The impact of pubertal development on the psychological and social functioning of the teenager arouses a particular interest; the most recent research shows the existence of complex relationships between ... [more ▼]The impact of pubertal development on the psychological and social functioning of the teenager arouses a particular interest; the most recent research shows the existence of complex relationships between pubertal development and the manifestation of internalized and externalized disorders. According to a biosocial model, biological and social factors interact in their influence on sexual behavior. A number of studies have shown that sexual activity is associated with pubertal timing. Our study is interested specifically in the links between sexual activity (and sexual abuse) during adolescence and pubertal maturation in a population of juvenile sexual offenders aged between 12 and 18 years. We measured the pubertal variable starting from the perceived pubertal timing (PPT), which evaluates the teenagers' perception of their pubertal maturation, compared with that of their peers, to understand its impact on various dimensions of the functioning of teenagers: the perception of self , aggressiveness, association with peers, self-revealed delinquency and sexual offenses. Two predominant hypothesis are used for explain influence of pubertal timing on sexual offense: the maturational deviance hypothesis and the early timing hypothesis. Our results confirm the importance of integrating the puberty variable into research on adolescent male sexual offenders, but also at the level of intervention. [less ▲]Detailed reference viewed: 25 (0 ULg) Assessment of Solvent Degradation within a Global Process Model of Post-Combustion CO2 CaptureLéonard, Grégoire ; Heyen, Georges ; Toye, Dominique Conference (2014, June 17)Solvent degradation may be a major drawback for the large-scale implementation of post-combustion CO2 capture due to amine consumption and emission of degradation products. However, its influence on the ... [more ▼]Solvent degradation may be a major drawback for the large-scale implementation of post-combustion CO2 capture due to amine consumption and emission of degradation products. However, its influence on the process operations has rarely been studied. In the present work, a kinetics model describing solvent oxidative and thermal degradation has been developed based on own experimental results for the benchmark solvent, i.e. 30 wt% monoethanolamine (MEA) in water. This model has been included into a global Aspen Plus model of the CO2 capture process. The selected process modelling approaches are described in the present work. Using the resulting simulation model, optimal operating conditions can be identified to minimize both the energy requirement and the solvent degradation in the process. This kind of process model assessing solvent degradation may contribute to the design of large-scale CO2 capture plants to consider not only the process energy penalty, but also its environmental penalty. Indeed, both aspects are relevant for the large-scale deployment of the CO2 capture technology. [less ▲]Detailed reference viewed: 41 (2 ULg) The Science Behind the Illusion of LifeCollignon, Stéphane Conference (2014, June 17)Brève revue des différents processus cognitifs et neuroscientifiques qui permettent d'expliquer qu'une figurine de cartoon suscite de réelles émotions malgré son artificialité manifeste.Detailed reference viewed: 7 (0 ULg) Prior light history impacts on higher order cognitive brain functionChellappa, Sarah Laxhmi ; Ly, Julien; Meyer, Christelle et alConference (2014, June 17)Detailed reference viewed: 31 (2 ULg) Islamic religion and food practices in migration context: negotiating belonging and performing subjectivitiesMescoli, Elsa Conference (2014, June 17)My paper focuses on the ethnographic material collected during a doctoral research around the culinary practices of Moroccan women living in the city of Sesto San Giovanni (in Milan hinterland, Italy). In ... [more ▼]My paper focuses on the ethnographic material collected during a doctoral research around the culinary practices of Moroccan women living in the city of Sesto San Giovanni (in Milan hinterland, Italy). In particular, adopting a praxeological approach to subjectivation (Warnier 2001), I will highlight those aspects of the materiality that I studied which recall the belonging of the considered women to Islamic religion. In fact, everyday food consumption (or that related to specific events) and the very same preparation of recipes, are influenced not only by the prescriptions concerning licit and illicit food, but also by the suggestions regarding food which are appropriate to eat. On the one hand, Islamic norms prohibit some food to believers, such as certain meats because of the animal species or the category of victims (Benkheira 1997) to which they belong. Nevertheless, Muslim women behaviours concerning meat consumption are various, such as those of my informants, who in some cases demonstrate to negotiate such norms in order to materially shape a specific self interacting with different collective belongings. On the other hand, some Quranic verses and some sayings of the prophet Muhammad, define a soul food (Rouse and Hoskin 2004), by suggesting to believers what to eat to perform their piety: the preparation and the consumption of some food – and not only the abstention from it – finds in fact religious reasons. In order to follow such suggestions, in a context where Islamic religion is not the majority one, women has to deal with local rules while performing the materiality of some rituals. Religion and traditions intertwine and they shape specific knowledge and savoir-faire which are negotiated by the women considered so as to affirm their various belongings and to face the constraints which the new lived context imposes to them. Such constraints oblige a form of reflexivity on religious norms and rites (Højbjerg 2002), in order to define a limit beyond which modifications are perceived as subtractions of sense (Dore 2001). In my paper, I will try to give some ethnographic examples of these forms of reflexivity and to show how these dynamics constitute the materiality upon which and with which the women considered define their subjectivity. To support my reflexions, I will use visual materials such as photos and videos, which will witness the material density of these facts. [less ▲]Detailed reference viewed: 40 (1 ULg) Characterization of riparian zones in wallonia (belgium)Michez, Adrien ; Piégay, Hervé; Lejeune, Philippe et alConference (2014, June 16)The present study proposes an innovative approach to automatically extract riparian zone characteristics in order to assess its quality, from pre-determined river management reaches (1-3 km long) to ... [more ▼]The present study proposes an innovative approach to automatically extract riparian zone characteristics in order to assess its quality, from pre-determined river management reaches (1-3 km long) to regional scale (ca. 13000 km for 1000 management sectors). The aim of this remotely sensed monitoring is to improve the river and riparian zone management and planning by providing some key information for river managers. This first research is exclusively based on data which are available at the regional scale (170000 square km) to develop automated tools to implement the methodology to the whole Walloon river network (13000 km) before 2015 with an update frequency of 3 years (photogrammetric DSM survey frequency). [less ▲]Detailed reference viewed: 15 (1 ULg) The circadian system sets the temporal organization of basic human neuronal functionChellappa, Sarah Laxhmi ; Ly, Julien; Gaggioni, Giulia et alConference (2014, June 16)Detailed reference viewed: 20 (6 ULg) Copper recovery from waste electric cables by biohydrometallurgyLambert, Fanny ; Bastin, David Conference (2014, June 13)This study examines the leaching of copper from waste electric cables by chemical leaching and leaching catalysed by Acidithiobacillus ferrooxidans in terms of leaching kinetics and reagents consumption ... [more ▼]This study examines the leaching of copper from waste electric cables by chemical leaching and leaching catalysed by Acidithiobacillus ferrooxidans in terms of leaching kinetics and reagents consumption. Operational parameters such as the nature of the oxidant (Fe3+, O2), the initial ferric iron concentration (0-10 g/L) and the temperature (21-50°C) were identified to have an important influence on the degree of copper solubilisation. At optimal process conditions, copper extraction above 90% was achieved in both leaching systems, with a leaching duration of 1 day. The bacterial leaching system slightly outperformed the chemical one but the positive effect of regeneration of Fe3+ was limited. It appears that the Fe2+ bio-oxidation is not sufficiently optimised. Best results in terms of copper solubilisation kinetics were obtained for the abiotic test at 50°C and for the biotic test at 35°C. Moreover, the study showed that in same operating conditions, a lower acid consumption was recorded for the biotic test than for the abiotic test. [less ▲]Detailed reference viewed: 34 (3 ULg) Measuring the body, measuring through the bodyVangeebergen, Thomas Conference (2014, June 13)Body is a particular relevant way to tackle design processes, because of the multiplicity of status it can acquire during these processes: a source of information, a target to fit, a device to perform, a ... [more ▼]Body is a particular relevant way to tackle design processes, because of the multiplicity of status it can acquire during these processes: a source of information, a target to fit, a device to perform, a complex technology, an apparatus for the users. A specific body is presented in this paper: the measured body. Trough racial anthropology, sport performances, demographic statistics, medical treatments, psycho-cognitive surveys, quantified self, or in many other contexts, human body is subject to a wide range of various measures. I would on my own propose some thoughts grounded on field exploration, concerning sensory analysis practices, in various laboratories. According to the symmetrical glaze STS have gave from the beginning to both human and non-humans, objects and subjects, the body is for a start itself one of the “stuffs” overlapping categories, blurring distinctions between things and persons, at the same a time a given and an object to perform. The measures of the body, and made with/through the body, highlight how it could be enacted, revealed, understood, improved by technology, especially when it requires some quantitative data. But it allows us also to grasp how the body is viewed simultaneously as a technological device and as the data origin, to intervene during complex practices (e.g. standardization, lab experiments, and marketing surveys). One of the numerous outcomes of such research could be the role of these bodily measurements in the definition of the actors, as well individuals than collectives. By the way it takes on a share on the network tying body to numerical data and to materiality-other-than-human, to measure the body/ through the body seems to afford socio-materiality in a particularly productive manner. Many scholars have inquired about numbers, how they could bring objectivity, how they produce confidence and security, and how finally they participate to black-box the measures themselves. Here, the aim is to understand the specificity of the body as measurement issue, being the interface of the-objects-to-be-measured and the instrument-of-measure. [less ▲]Detailed reference viewed: 62 (7 ULg) The Discretionary Use of Strasbourg Jurisprudence by the International Criminal CourtDeprez, Christophe Conference (2014, June 13)Although the case law of the European Court of Human Rights ("ECtHR") has had and still shows critical influence on the development of the practice of the International Criminal Court ("ICC"), it remains ... [more ▼]Although the case law of the European Court of Human Rights ("ECtHR") has had and still shows critical influence on the development of the practice of the International Criminal Court ("ICC"), it remains unclear what the authority of such external jurisprudence is vis-à-vis the international criminal judge. While it is virtually undisputed that human rights law, in general terms, is applicable to proceedings before the ICC, many scholars tend to adopt a much nuanced approach to the authority of human rights case law in particular. This paper aims to shed further light on the issue by addressing the question whether ICC judges have used Strasbourg jurisprudence in a consistent manner, in particular as regards the authority which they decided to vest the latter with. It demonstrates that ICC Chambers have relied on European human rights practice, alternatively, as a mere source of inspiration, as binding interpretation, as a corpus having ambivalent authority, or as a source whose legal value it simply left unspecified. This leads us to conclude that, on the whole, the ICC has been mostly inconsistent regarding the value of ECtHR case law in the context of international criminal proceedings. Such inconsistency, we argue, amounts to a discretionary use of Strasbourg jurisprudence that further reinforces the Court's paradoxical position as the ultimate authority for defining the boundaries of its own human rights constraint. [less ▲]Detailed reference viewed: 15 (1 ULg) Proposal for a “Landscape Laboratory” in the Meuse Valley in Liège (Belgium)Szanto, Catherine ; Occhiuto, Rita Conference (2014, June 12)In an article untitled „Landscape Laboratory as a Scandinavian Concept“, R. Gustavsson describes the experiment he set up in the 1990s at Swedish University of Agricultural Sciences in Alnarp. The ... [more ▼]In an article untitled „Landscape Laboratory as a Scandinavian Concept“, R. Gustavsson describes the experiment he set up in the 1990s at Swedish University of Agricultural Sciences in Alnarp. The Landscape Laboratory is an ongoing full scale afforestation experiment that brings together the different theoretical and practical traditions of forestry, ecology and landscape architecture. It is based on the epistemological paradigm of case study analysis, and involves “slow learning”, combining design and management, in phase with the living processes it studies. As such, it is necessarily open, responsive to the site-specific dynamics that it started and accompanies through time. By introducing the idea of “creative management”, it proposes a time-based conceptual framework that can be used in the on-going study and experimentation of different urban and landscape issues. The idea was taken on in projects in different contexts in Scandinavia and elsewhere in Europe. The research led by the unit “Ville-Territoire-Paysage” (LabVTP) of the Faculty of Architecture at the Liège University for the requalification of industrial sites in the Meuse valley offers an opportunity to confront the laboratory approach to yet another context, that of a post-industrial urban site in search of (landscape) meaning. The aim of LabVTP is to set up a permanent landscape observatory, aimed at regaining “landscape literacy” through a series of iterative, local landscape projects throughout the city, that articulate small-scale landscape elements with long-term place- and time-contextual investment. Each of these interventions can turn into a small “landscape laboratory” involving local stakeholders, and supporting teaching and research on themes such as vegetal reuse of industrial sites, participative urbanism, time-based design and “creative management”. Through the landscape laboratory approach applied as “landscape acupuncture”, our aim is to help rebuild the coherence of the apparently chaotic territory, and thus imagine a vision for its future. [less ▲]Detailed reference viewed: 22 (0 ULg) Félix Fénéon : de l’animation à la naturalisation critiqueSaint-Amand, Denis Conference (2014, June 12)Detailed reference viewed: 5 (0 ULg) Competing One-Way Essential Complements : the Forgotten Side of the Net Neutrality Story}Broos, Sébastien ; Gautier, Axel Conference (2014, June 12)We examine the incentives of an internet service provider (ISP) to break net neutrality by excluding internet applications competing with its own products, a typical example being the exclusion of VoIP ... [more ▼]We examine the incentives of an internet service provider (ISP) to break net neutrality by excluding internet applications competing with its own products, a typical example being the exclusion of VoIP applications by a telecom company offering internet and voice services. We show that exclusion is not a concern when the ISP is a monopoly because it can extract the additional surplus created by the application through price rebalancing. By contrast, when ISP’s compete, in an attempt to differentiate, only one ISP will offer the app. Applying a no-exclusion rule in this case can lead to monopoly. [less ▲]Detailed reference viewed: 16 (3 ULg) Use of PerFix EXPOSE for STAT5 phosphorylation level monitoring in regulatory T cellsEhx, Grégory Conference (2014, June 12)Detailed reference viewed: 18 (5 ULg) Internet : support, médium ou épimédium ?Barnabé, Fanny ; Dozo, Björn-Olav Conference (2014, June 11)Detailed reference viewed: 18 (7 ULg) Le marquage et les soins vétérinaires appliqués aux camélidés d'après la documentation papyrologique grecque d’ÉgypteRicciardetto, Antonio Conference (2014, June 10)Detailed reference viewed: 20 (5 ULg) Tello (Ancient Girsu) and its Countryside: Topographic Layout and Regional Setting of an Early Dynastic Sumerian CityRey, Sébastien ; Lecompte, Camille; Colonna d'Istria, Laurent Conference (2014, June 10)Detailed reference viewed: 60 (2 ULg) Les remèdes d'origine égyptienne utilisés dans la médecine vétérinaire antiqueMarganne, Marie-Hélène Conference (2014, June 10)Famous since the Odyssey (IV, 229-230) for its drugs, Egypt furnishes the Greek world with some medical substances already mentioned in the hippocratic treatises. Moreover, many Greek drug names have been ... [more ▼]Famous since the Odyssey (IV, 229-230) for its drugs, Egypt furnishes the Greek world with some medical substances already mentioned in the hippocratic treatises. Moreover, many Greek drug names have been loaned from the Egyptian language, such as ἄμ(μ)ι for cumin, κίκι for castor-oil, κόμμι for gum, κῦφι for a complex preparation used for fumigation in cult practices, νίτρον for sodium carbonate, στίμμι for galena, σῶρυ for ferrous sulfate, and σάμψ(ο)υχον, for marjoram, whose name means “herb (sem) of Soukhos", another name for the crocodile god Sobek. The trade of drugs, spices and colourants, used in pharmacology, cosmetology, painting, cultual and magical practices, embalming rites and nutrition always flourished in Egypt and has intensified in Hellenistic and Roman times. As a continuation of the research on remedies of Egyptian origin in Greco-Roman pharmacopoeia, this article provides a list of Egyptian ingredients used in Greek and Latin veterinary prescriptions. The use of these substances is compared with recomandations from human medicine. Their availability and costs are also studied. [less ▲]Detailed reference viewed: 15 (1 ULg) Soil infrastructure evolution and its effect on water transfer processes under contrasted tillage systems - overview of methodologies with preliminary resultsParvin, Nargish ; Colinet, Gilles ; Garré, Sarah et alConference (2014, June 10)The heterogeneity of soil structure and porosity are highly influenced by external factors like tillage systems and other land management approaches. The aim of this project is to investigate the effect ... [more ▼]The heterogeneity of soil structure and porosity are highly influenced by external factors like tillage systems and other land management approaches. The aim of this project is to investigate the effect of soil tillage along with residue management on the changing pattern of soil structure. This investigation will help to emphasize the different water flow dynamics especially the preferential flow processes through the soil that are influenced by the changes in structural distribution in the soil profile. The experimentation has been started from June 2013 in the research field in Gembloux. Soil profile description together with soil sampling has been carried out in the four objects of land management. Soil samples will be used for the measurement of water retention capacity (done), hydraulic conductivity and x-ray microtomography. The assessment of soil water retention curves with pressure plate technique show significantly (p<0.05) higher water retention (Hwr) in WP than ST at 9.8 to 98 hPa, Hwr in WP than NI at 39 to 14710 hPa, Hwr in ST than NI at 294 to 14710 hPa and Hwr in WP than NO at 69 to 98 hPa. There was no significant difference in the water retention between NO and NI and ST and NO. Since, tillage practices generally increase soil porosity, the correlation between soil hydraulics and porosity distribution would expect to be different for different tillage systems. In our study, WP retains more water due to the increase of macroporosity than ST, NI and NO. As the changes in soil structure are usually noticed in the range of 9.8 to 98 hPa, so, we can conclude that there is certainly structural change between WP and conservation practices of ST, NI and NO. In our study, there will be also soil moisture sensors (Decagon 10HS, 5TM and ML3 Thetaprobe) to capture the total soil moisture networks in the field under four different trials. The soils from the different trials and also from different depths (0-15, 25-30 and 50-60 cm) were used for zone specific calibration of the sensors. All the experiments will be repeated twice a year. For the specific spatio-temporal comparison, the monitoring results from electrical resistance tomography will be available from the collaborated project of the same faculty. [less ▲]Detailed reference viewed: 39 (7 ULg) Fe and Mg Isotope Fractionation in Olivine from the NWA 1068 ShergottiteCollinet, Max ; Charlier, Bernard ; Namur, Olivier et alConference (2014, June 09)Detailed reference viewed: 18 (4 ULg) Higher Symmetries of the conformal LaplacianRadoux, Fabian Conference (2014, June 09)Detailed reference viewed: 3 (0 ULg) Fast Ambient Pressure Thermal cycling of space solar arrays samples under equivalent AM0 illumination conditionsGuiot, Marc ; Fernandez Lisbona, Emilio; Witteveen, Bob et alConference (2014, June 08)Detailed reference viewed: 17 (2 ULg) A wavelet-based analysis of surface air temperature variabilityDeliège, Adrien ; Nicolay, Samuel Conference (2014, June 06)We study the Hölder regularity of surface air temperature signals using the wavelet leaders method (WLM). This method has been successfully applied in several domains such as DNA analysis, fully ... [more ▼]We study the Hölder regularity of surface air temperature signals using the wavelet leaders method (WLM). This method has been successfully applied in several domains such as DNA analysis, fully developped turbulence analysis, internet data traffic analysis,... to name just a few, and we now use it in climatology. We first define the notions of Hölder exponent, monofractal functions and spectrum of singularities before explaining the WLM. Then we use it to study surface air temperature signals from weather stations spread across Western and Eastern Europe and show that they are monofractal, i.e. their irregularity (in the sense of variability) is regular. After, we show that the stations can be classified according to their Hölder exponent and that this classification matches with the worldwide used Köppen-Geiger climate classification. A blind test is performed in order to confirm the results, which can be partly explained by the influence of the North Atlantic Oscillation. Our results can be helpful to test the accuracy of current climatic models. [less ▲]Detailed reference viewed: 11 (2 ULg) Tendinopathie rotulienne - Le point de vue du médecin du sport sur la thérapeutiqueKaux, Jean-François Conference (2014, June 06)Detailed reference viewed: 41 (6 ULg) Solar irradiance modelling over Belgium using WRF-ARW : A sensitivity analysis of Mellor-Yamada-Nakanishi-Niino (BYNN) boundary layer scheme parametersBeaumet, Julien ; Doutreloup, Sébastien ; Fettweis, Xavier et alConference (2014, June 06)Global solar irradiances at ground level are modelled over Belgium using latest version of WRF-ARW regional climate model (RCM). The model set-up used has a resolution of 5 kilometres. The boundary layer ... [more ▼]Global solar irradiances at ground level are modelled over Belgium using latest version of WRF-ARW regional climate model (RCM). The model set-up used has a resolution of 5 kilometres. The boundary layer scheme chosen is the Mellor-Yamada-Nakanishi-Niino (MYNN) 2.5 scheme with the Turbulent Kinetic Energy (TKE) closure proposed by Canuto et al., (2008) and Kitamura (2010). In this scheme, the modification of some parameters allows to change the determinant mixing length (surface layer, planet boundary layer, top of boundary layer/entrainment) which then modifies heat and moistures fluxes produced by turbulent mixing. Such modifications have significant influences on modelled cloudiness and therefore on modelled global solar irradiance incoming at the surface. The present study proposes a sensitivity analysis of the different parameters that influence the mixing length ('alp1' to 'alp5') and the TKE diffusion ('Sqfac') in order to find the most suitable constant values of these parameters for the modelling of cloudiness over Belgium. Results of different simulations are compared with global solar irradiance measurements performed by the Centre Spatial de Liège at Sart-Tilman in 2013 and 2014. Firsts results show that the dry bias frequently found when using WRF-ARW with standard set-ups can be greatly reduced thanks to an increased modelled cloudiness. The quantitative and qualitative effects of these modifications over cloudiness are also analysed by displaying 2D representation of modelled clouds over Sart-Tilman and confronting them with on-site observations. [less ▲]Detailed reference viewed: 34 (1 ULg) Muti-scale methods with strain-softening: damage-enhanced MFH for composite materials and computational homogenization for cellular materials with micro-bucklingWu, Ling ; Nguyen, Van Dung ; Adam, Laurent et alConference (2014, June 06)In this work, multi-scale methods with strain softening are developed in the contexts of damage modeling for composite laminates and of buckling analyses in cellular materials. First, an anisotropic ... [more ▼]In this work, multi-scale methods with strain softening are developed in the contexts of damage modeling for composite laminates and of buckling analyses in cellular materials. First, an anisotropic gradient–enhanced continuum damage model is embedded in a mean–field homogenization (MFH) process for elasto-plastic composites. The homogenization procedure is based on the newly developed incremental secant mean-field homogenization formulation, for which the residual stress and strain states reached in the phases upon a fictitious elastic unloading are considered as starting point to apply the secant method. The mean stress fields in the phases are then computed using isotropic secant tensors, which are naturally used to define the Linear Comparison–Composite The resulting multi– scale model is then applied to study the damage process at the meso–scale of laminates, and in particular the damaging of plies in a composite stack. By using the gradient–enhanced continuum damage model, the problem of losing uniqueness upon strain softening is avoided. Second, an efficient multi–scale finite element framework capturing the buckling instabilities in cellular materials is developed. As a classical multi–scale computational homogenization scheme loses accuracy with the apparition of the macroscopic localizations resulting from the micro–buckling, the second order multi–scale computational homogenization scheme is considered. This second–order computational framework is enhanced with the following novelties so that it can be used for cellular materials. 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-continuity. 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 problems. [less ▲]Detailed reference viewed: 48 (15 ULg) Steering cities towards sustainability: The role of formal and informal controls in implementing a mobility strategyCrutzen, Nathalie Conference (2014, June 06)Detailed reference viewed: 22 (12 ULg) Les médiateurs scolaires en action : des discours aux pratiquesDethier, Baptiste Conference (2014, June 05)En 1993, dans un contexte marqué les questions d’insécurité, de violence scolaire, de crise de confiance envers les institutions ou encore de décrochage scolaire, 28 médiateurs sont engagés dans autant ... [more ▼]En 1993, dans un contexte marqué les questions d’insécurité, de violence scolaire, de crise de confiance envers les institutions ou encore de décrochage scolaire, 28 médiateurs sont engagés dans autant d’établissements scolaires aux publics défavorisés de la région bruxelloise. Ce projet pilote, voyant le jour sous la houlette du Ministère de l’enseignement, ne sera institutionnalisé qu’en 1998 dans un décret créant le Service de Médiation Scolaire, divisé en deux entités : 56 médiateurs internes à Bruxelles et 30 médiateurs externes (répartis par zones couvrant plusieurs établissements) en Wallonie. Par ailleurs, d’autres niveaux de pouvoir (communes, diocèses, écoles) créaient également, localement, leurs propres fonctions de médiateur scolaire. Actuellement, on en dénombre environ 120 en Belgique francophone. Ce nouvel acteur, bien que peu étudié, incarnerait un nouveau mode de régulation sociale (Bonafé-Schmitt, 1996) remettant en question les équilibres historiques du système scolaire (Verhoeven, 1997). En effet, il se présente comme un tiers neutre et indépendant de l’établissement, permettant ainsi la création d’un espace où peuvent se résoudre différents problèmes concernant les personnes demandeuses, qu’elles soient élèves, membres du personnel scolaire ou encore parents. Dans un premier temps, notre attention se porte sur l’ensemble des acteurs portant le nom de médiateurs scolaires (Kuty et al., 2012). Au sein d’un cadre légal ne définissant que vaguement leur fonction, ces derniers sont néanmoins globalement chargés de prévenir la violence et le décrochage scolaires et de favoriser, conserver ou rétablir le climat de confiance entre élèves, écoles et familles. À partir de là, ils ont progressivement construit leurs propres pratiques et leur identité, cherchant par là à trouver et à consolider leur place au sein d’un milieu scolaire déjà marqué par la présence de multiples acteurs. Dans un second temps, des études de cas approfondies dans six établissements d’enseignement secondaire permettent de constater que les médiateurs ne disposaient pas du monopole de la médiation (Dubois et Dethier, 2013), concept polysémique auquel de nombreux acteurs se réfèrent pour qualifier certains aspects de leur travail quotidien. En outre, le recours à la médiation ou aux médiateurs ne se révèle être qu’une solution parmi d’autres pour faire face aux différents problèmes rencontrés par les acteurs : violence, décrochage, absentéisme, échec scolaire, conflits, problèmes socio-économiques… Ces constats exigent une étude empirique approfondie du travail concret réalisé par les médiateurs scolaires, une étude attentive à leurs discours mais aussi à l’observation de leurs pratiques et interactions directes avec les différents acteurs scolaires. Les résultats de cette étude font l’objet de cette communication. Cette contribution se base sur un corpus composé de onze entretiens individuels, trois focus groups et trois périodes d’observation non participante auprès de médiateurs belges francophones membres d’un même service. Ces derniers revendiquent une posture de tiers neutre et indépendant dans l’école, ainsi que des principes basés sur le non-jugement, la confidentialité, l’accueil inconditionnel de la demande ou encore la non-expertise. Il s’agira par conséquent de rendre compte de la manière dont ces médiateurs traduisent leurs discours en pratiques au quotidien. [less ▲]Detailed reference viewed: 20 (3 ULg) Réparation microchirurgicale des séquelles sévères de paralysie faciale périphérique chronique : rôle diagnostique et pronostique de l'électroneuromyographie (ENMG)LOZZA, Alessandro; WANG, François-Charles ; RABBIOSI, Dimitri et alConference (2014, June 05)Detailed reference viewed: 14 (0 ULg) Günter Grass et ses traducteurs – de la dynamique collaborative au dispositif de contrôle ?Letawe, Céline Conference (2014, June 05)Detailed reference viewed: 18 (3 ULg) Optimal Enforcement of Competition Policy: The Commitments Procedure under UncertaintyGautier, Axel Conference (2014, June 05)Detailed reference viewed: 5 (0 ULg) A Single Envelope N-linked Glycosylation Site Defines Hyperpathogenicity of Bovine Leukemia VirusDe Brogniez, Alix ; Bouzar, Amel-Baya; Jacques, Jean-Rock et alConference (2014, June 05)Pathogens have co-evolved with their host to allow efficient replication and transmission without inducing excessive pathogenicity that would indirectly impair their persistence. This is exemplified by ... [more ▼]Pathogens have co-evolved with their host to allow efficient replication and transmission without inducing excessive pathogenicity that would indirectly impair their persistence. This is exemplified by the bovine leukemia virus (BLV) model that induces lymphoproliferative disorders in ruminants only after extended latency periods of several years. In principle, the equilibrium reached between the virus and its host could be disrupted by emergence of more pathogenic strains. Intriguingly, this type of hyperpathogenic BLV strain could never been isolated in vivo nor designed in vitro. Using reverse genetics of an infectious molecular provirus, we have now identified a N-linked envelope glycosylation site that limits viral replication and pathogenicity. Onset of this particular mutation may thus represent a potential threat associated with emergence of hyperpathogenic BLV strains and possibly of new variants of the related primate T-lymphotropic viruses. [less ▲]Detailed reference viewed: 13 (6 ULg) MALDI Mass Spectrometry Imaging: a new tool to decipher the antibiome of Bacillus amyloliquefaciensDebois, Delphine ; Jourdan, Emmanuel; Cawoy, Hélène et alConference (2014, June 05)Soil Bacillus isolates may devote up to 8% of their genome to nonribosomal synthesis of lipopeptide (LP)- and polyketide (PK)-type antibiotics. LPs from surfactin, iturin and fengycin families are known ... [more ▼]Soil Bacillus isolates may devote up to 8% of their genome to nonribosomal synthesis of lipopeptide (LP)- and polyketide (PK)-type antibiotics. LPs from surfactin, iturin and fengycin families are known to exert different actions on the wellness of the producing strain such as fungitoxicity (iturin, fengycin) or motility, root colonization and immune stimulating agent (surfactin). Nevertheless, few is reported about the actual antibiome secreted in situ by Bacillus cells during confrontation with phytopathogens or plant root colonization. We developed a method mimicking the conditions prevailing in the rhizosphere and, taking advantage of the versatility of Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging, we were able to localize and identify antibiotics produced in situ by bacterial cells. First, we applied this new methodology to bioassays in which Bacillus amyloliquefaciens 98S were grown together with Fusarium oxysporum, with the aim of deciphering the role of the different LP families during the phytopathogen growth inhibition. Our results showed that the three LP families were readily produced in different proportions. Especially, images of surfactins, iturins and fengycins demonstrated that iturins are the antibiotic family actually involved in the antagonism against Fusarium oxysporum. In a second approach, we used a “in planta” model in which Bacillus amyloliquefaciens S499 was simultaneously grown with Tomato and Arabidopsis thaliana roots. Imaging results, obtained during a time course analysis, showed that surfactin is always the major lipopeptide detected. In further experiments involving a refined time-window, we observed that surfactin is actually produced as soon as 24h post inoculation. These results were the starting point of a wider study showing that the early accumulation of surfactin is a complex phenomenon involving, among other mechanisms, cell-well components recognition by bacteria, and that this interaction is a win-win association for both plant and bacterial cells. [less ▲]Detailed reference viewed: 106 (7 ULg) Biorefine: Recovery of nutrients and metallic trace elements from different wastes by chemical and biochemical processesTarayre, Cédric ; Fischer, Christophe ; De Clercq, Lies et alConference (2014, June 05)At present, most waste processing operations are not oriented towards the valorization of valuable reusable components such as nitrogen, phosphorus, potassium and even Metallic Trace Elements (MTEs ... [more ▼]At present, most waste processing operations are not oriented towards the valorization of valuable reusable components such as nitrogen, phosphorus, potassium and even Metallic Trace Elements (MTEs). Currently, sewage sludge, for example is usually used as a fertilizer in agriculture, in energy production or in the field of construction. Ashes originating from sludge incineration contain heavy metals and minerals in large quantities. Manure is mainly used in agriculture, although considerable amounts of nutrients are lost and cause pollution. Digestate is also used in agriculture, but other alternatives have been proposed, such as the energetic valorization. Better valorization of these wastes in agriculture (or other sectors) is however largely constrained by a multitude of legal requirements. An important problematic point is the concentration in MTEs that is found in those wastes. Consequently, recovery of nutrients and MTEsmay be a key solution for optimal valorization of wastes. Many unit operations used in the field of chemical and biochemical engineering (mechanical operations on fluids, solids, mass and heat transfers, chemical reactions, etc.) could be used in order to achieve an efficient recovery yield of nutrients and trace elements. The aim of the BioRefine Project is to make an inventory of all recovery techniques of nutrients and MTEs in five countries: Belgium, France, Germany, United Kingdom and The Netherlands. Pilot plants will also be tested to assess the efficiency of new treatment techniques after which the most efficient processes will be chosen to be applied on a larger scale. In addition, the collected data will be used to propose exploitation scenarios taking into account legal constraints and optimized logistics.This work is supported through an INTERREG IVB NWE programme(ref. 320J-BIOREFINE). [less ▲]Detailed reference viewed: 37 (11 ULg)