References of "Scientific congresses and symposiums"      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 401 to 500 of 42390     1 2 3 4 5 6 7 8 9 10     Une forme compliquée d'hypercalcémie hypocalciurique familialePotorac, Iulia ; BETEA, Daniela ; MALAISE, Olivier et alin Abstract book - Annales d'Endocrinologie - 32ème Congrès de la Société Française d'Endocrinologie (2015, October)Detailed reference viewed: 5 (1 ULg) Plankton ecosystem response to the decadal variation of winter intensity in the Mediterranean Sea : a long-term study (1979-2014)Goffart, Anne ; Collignon, Amandine ; Hecq, Jean-Henri et alConference (2015, October)In the Mediterranean Sea, several studies with distinct data sets indicate that the pelagic ecosystem underwent periods of change in the late 1980s and in the early 2000s. Here we used a unique long-term ... [more ▼]In the Mediterranean Sea, several studies with distinct data sets indicate that the pelagic ecosystem underwent periods of change in the late 1980s and in the early 2000s. Here we used a unique long-term time series of data collected in the well-preserved Bay of Calvi (Corsica island, Ligurian Sea, NW Mediterranean) from 1979 and 2014 to explore the synchrony between changes in environmental conditions and phyto- and zooplankton dynamics. We identified an almost decadal, long-term variability in winter intensity, with three distinct periods: the 1980s (1979-1988), the 1990s (1989-1998) and the 2000s (1999-2014), which were characterized by moderate, mild and highly variable winters, respectively. We pointed out how the decadal changes in winter intensity affected (i) the duration and intensity of phyto- and zooplankton blooms, (ii) the mean yearly biomasses, and (iii) the nature of the assemblages. High phyto- and zooplankton biomasses were observed in years characterized by moderate and severe winters, and low phyto- and zooplankton abundances were recorded in years with mild winters. Moderate/severe and mild winters were favorable for diatoms and gelatinous zooplankton, respectively. Focusing on meroplanktonic species, we explored ecological consequences of decadal variations observed in the Bay of Calvi for resource management. We highlighted parallelisms with other European seas. [less ▲]Detailed reference viewed: 14 (4 ULg) Anthropogenic particles in stomachs of anchovies (Engraulis encrasicolus) related to gill rakers morphologyCollard, France ; Das, Krishna ; Gilbert, Bernard et alin Proceedings of In the Wake of Plastics, Venice, October 13-15, 2015 (2015, October)Anthropogenic debris (AB) contaminate oceans and affect marine organisms in several ways. Plastic production is constantly increasing and it is estimated that 10% of this production end in the seas. As a ... [more ▼]Anthropogenic debris (AB) contaminate oceans and affect marine organisms in several ways. Plastic production is constantly increasing and it is estimated that 10% of this production end in the seas. As a consequence, plastic is considered as an emerging contaminant and ingestions by organisms are increasingly reported. Microdebris (< 5mm) are available for a high range of organisms, including planktivorous fish, such as the European anchovy (Engraulis encrasicolus). Planktivorous fish have a particular gill basket, with long and tight gill rakers, related to their diet. Upon these gill rakers, small structures called denticles are present. These gill rakers act as a net to trap organic particles and AB. The aim of our study was to correlate sizes of AB ingested with the mesh constituted by the gill rakers and associated structures. Fifteen stomach contents were analyzed by Raman spectroscopy and particles were measured. Five gill arches were observed with a scanning electron microscope. Cellulose fibers and microplastics were the most AB ingested. Comparing to other Clupeiformes (pilchard and Atlantic herring), anchovies have more denticles on each gill rakers (personal data). AB ingestion by fish is poorly studied and impacts of AB are not much understood. Clupeiformes play a major role in marine ecosystems and is the most consumed order by humans. As the branchial basket constitutes a food selective apparatus, more morphological studies dealing with AB ingestion on Clupeiformes are needed. [less ▲]Detailed reference viewed: 20 (0 ULg) L'enseignement-apprentissage du néerlandais en Fédération Wallonie-Bruxelles: objectifs, méthodes, résultatsRasier, Laurent ; Hiligsmann, PhilippeConference (2015, September 30)Detailed reference viewed: 23 (2 ULg) Passer à Alma d’Ex Libris : projet de réinformatisation ? projet de bibliothèque ? L'expérience de l'Université de Liège 6 mois avant et 6 mois aprèsRenaville, François ; Thirion, Paul Conference (2015, September 29)En janvier 2014, les Bibliothèques de l'Université de Liège ont décidé de passer au système de gestion de bibliothèque Alma. Le projet a débuté en août 2014 ; six mois après, la migration vers Alma et le ... [more ▼]En janvier 2014, les Bibliothèques de l'Université de Liège ont décidé de passer au système de gestion de bibliothèque Alma. Le projet a débuté en août 2014 ; six mois après, la migration vers Alma et le lancement d'une nouvelle interface de découverte Primo étaient réalisés. Cette présentation balaye les moments clés de ce projet, en mettant l'accent sur la composante organisationnelle et la gestion du changement, ainsi que sur les premiers mois d’expérience avec le nouvel outil. [less ▲]Detailed reference viewed: 127 (18 ULg) Simulations of the auroral signatures of Jupiter’s magnetospheric injectionsDumont, Maïté ; Grodent, Denis ; Radioti, Aikaterini et alConference (2015, September 29)We report the evolution of ultraviolet auroral features located equatorward of the main emission appearing in the Hubble Space Telescope (HST) images of the northern and the southern Jovian hemisphere. We ... [more ▼]We report the evolution of ultraviolet auroral features located equatorward of the main emission appearing in the Hubble Space Telescope (HST) images of the northern and the southern Jovian hemisphere. We investigate the possibility that those ultraviolet auroral structures are associated with energetic particle injections. For this study, we compare the characteristics of the simulated auroral signature of plasma injections with the observed parameters of equatorward isolated auroral structures. [less ▲]Detailed reference viewed: 19 (2 ULg) Better tests better care : Syndrome-based diagnostics for respiratory tract infectionsMELIN, Pierrette Conference (2015, September 29)Detailed reference viewed: 8 (0 ULg) Statistical analysis and multi-instrument overview of the quasi-periodic 1-hour pulsations in the Saturn's outer magnetospherePalmaerts, Benjamin ; Roussos, Elias; Krupp, Norbert et alPoster (2015, September 29)Detailed reference viewed: 24 (1 ULg) Dynamics of the active region in Jupiter’s auroraeBonfond, Bertrand ; Grodent, Denis ; Badman, Sarah et alConference (2015, September 29)The Far-UV aurorae at Jupiter variety on a wide range of timescales. This study focuses on the dynamics of the active region on timescales of a few minutes. Up to now, only the time-tag mode of the Space ... [more ▼]The Far-UV aurorae at Jupiter variety on a wide range of timescales. This study focuses on the dynamics of the active region on timescales of a few minutes. Up to now, only the time-tag mode of the Space Telescope Imaging Spectrograph provides access to such fast variations with a high spatial resolution. This active region, located on the dusk flank of the area inside the main auroral oval, is the locus of particularly bright (up to several mega Reyleighs) and sudden (a few tens of seconds) enhancements called flares. A previous study also showed that these flare could reoccur quasi-periodically every 2-3 minutes and propagate from dusk to dawn. Here we use data obtained in 2013 and 2014 to show that this quasi-periodic behavior is only present on half of the cases and that the affected region could either cover the whole active region or a much smaller area (∼5000km^2). We also found areas that were still during part of the observation sequence and then began to blink (see Figure 1). We also show that there no systematically preferred propagation direction. Finally, sequences acquired successively in the two hemispheres show that the quasi-periodic flares can be in phase [less ▲]Detailed reference viewed: 16 (0 ULg) Experimental and in silico approaches to study the interaction of Remorin with plant plasma membrane : specific interaction of the C-term domain with lipidsDeleu, Magali ; Nasir, Mehmet Nail ; Gronnier, Julien et alConference (2015, September 29)The function of Remorins, a diverse family of plant-specific proteins (1) is far to be fully elucidated. One of them, StREM1.3 (for Solanum tuberosum Remorin from group 1, homolog 3) has been reported to ... [more ▼]The function of Remorins, a diverse family of plant-specific proteins (1) is far to be fully elucidated. One of them, StREM1.3 (for Solanum tuberosum Remorin from group 1, homolog 3) has been reported to regulate cell-to-cell propagation of the potato virus X (2). It was also shown to be localized to the inner leaflet of plasma membranes (PMs) and along plasmodesmata, bridges connecting neighbor cells essential for cell-to-cell communication in plants (3). The mechanisms driving StREM1.3 association with PM is still an open question. It was shown recently that a domain of 28 residues at the C-terminus of the potato (RemCA) is required and sufficient for anchoring to the PM (4). Here we combined experimental and in silico biophysics to unravel the molecular bases of RemCA membrane binding. Biomimetic membrane models of plant PM such as monolayers and liposomes were used with various biophysical techniques (Langmuir monolayer technique, Fourier-transformed infrared spectroscopy, circular dichroïsm) and modeling tools (home-made methods and molecular dynamics) (5) to answer to three questions: (i) What is the conformation adopted by RemCA within a membrane?, (ii) Is there any membrane lipid specificity in the RemCA-membrane binding? (iii) What is the role of the two different RemCA domains in the interaction? Results show that RemCA displays a preference for plant phosphoinositide and sitosterol-enriched inner leaflet plasma membrane rafts. Within the membrane, the C-terminal and the N-terminal domains adopt a random coil and a -helical conformation respectively. The C-terminal domain acts as a driver to bind RemCA to the membrane while the N-terminal domain stabilizes the peptide at the membrane. Lysine residues have a crucial importance in this interaction. References (1) Raffaele et al., Plant Physiol., 2007, 145: 593–600 (2) Raffaela et al., Plant Cell, 2009, 21: 1541–1555. (3) Maule, Curr. Opin. Plant Biol., 2008, 11: 680–686. (4) Perraki et al., Plant Physiology, 2012, 160 : 624-637. (5) Deleu et al., Biochim. Biophys. Acta – Biomembranes, 2014, 1838 : 3171-3190. [less ▲]Detailed reference viewed: 33 (3 ULg) High-throughput sequencing of toxins with pharmacological interest: proof of concept and first applicationsEchterbille, Julien ; Degueldre, Michel ; Boulanger, Madeleine et alConference (2015, September 28)Animal venoms are complex chemical cocktails, comprising wide ranges of biologically active reticulated peptides that target with high selectivity and efficacy varieties of membrane receptors. Assuming ... [more ▼]Animal venoms are complex chemical cocktails, comprising wide ranges of biologically active reticulated peptides that target with high selectivity and efficacy varieties of membrane receptors. Assuming the fact that each of the 170,000 venomous species reported can produce more than 250 bioactive toxins, at least 40,000,000 bioactive peptides and proteins may be discovered. Among the four described species of mambas, Eastern Jameson’s mamba (Dendroaspis jamesonii kaimosae) venom is the less characterized since only 9 peptides are referenced in database. This work aims at developing a new strategy devoted to the deep analysis of animal venoms. Our approach consists in a first separation of the venom using cation exchange chromatography. Each primary fraction is then purified a second time by classical RP-HPLC. A total of 328 fractions, containing amongst 1 and 4 toxins, are finally collected. MALDI-MS analysis of each fraction is done in order (1) to obtain information about masses and (2) to obtain sequences of toxins thanks to MALDI-In Source Decay (ISD) dissociation coupled with on MALDI target plate reduction of the peptides. ISD has already been demonstrated efficient for toxin sequencing1, and especially when using 1,5-DAN as reducing matrix2. ISD yields to sequences that cover more than 50% of peptide sequences by series of singly charged c-type ions. Thanks to this methodology, we were able to obtain 85% of satisfactory results i.e. spectra giving quite long tags of amino acids (up to 20 residues). As a way to validate our method, a tag coming from ISD spectrum interpretation has found a match in database for an Eastern Jameson’s mamba toxin. The global sequence has then been obtained by extrapolation on the ISD spectrum. Since ISD spectra are simpler than classical MS/MS spectra, automation of spectra interpretation, difficult with other fragmentation techniques (CID, ETD…), is implementable. In the near future, sequences obtained with this approach will be used to direct tests of biological activity through sequence homologies with already known ligands for different kinds of membrane receptors. [less ▲]Detailed reference viewed: 19 (3 ULg) Characterization of new carbonyl scavenger molecules and their subsequent use for cancer therapyDurieux, Florence ; Peixoto, Paul ; Chiavarina, Barbara et alPoster (2015, September 28)Detailed reference viewed: 23 (4 ULg) On some draxbacks and possible improvements of a Lagrangian Finite Element method for simulating incompressible flowsCerquaglia, Marco Lucio ; Deliège, Geoffrey ; Boman, Romain et alConference (2015, September 28)Detailed reference viewed: 12 (1 ULg) Le projet expérimental multidisciplinaire (PEMD) en 3ème Bachelier à GemblouxColaux-Castillo, Catherine; Pochet, Bernard in Former aux compétences informationnelles à l'heure du web 2.0 et des discovery tools (2015, September 28)Cette courte présentation, dans l'atelier 3 du colloque ILIB15, décrit l'intégration d'un cours (« littérature scientifique et méthodologie documentaire »), dont le titulaire est un bibliothécaire, dans ... [more ▼]Cette courte présentation, dans l'atelier 3 du colloque ILIB15, décrit l'intégration d'un cours (« littérature scientifique et méthodologie documentaire »), dont le titulaire est un bibliothécaire, dans une unité d’apprentissage intégrée basée sur la résolution d'un problème concret de recherche dans un contexte scientifique non familier. Ce cours a été proposé pour la première fois durant l'année académique 2014-2015 à une partie des étudiants du bloc trois du Master Bioingénieur, orientation Sciences et technologies de l’environnement de l'Université de Liège. Cette activité se déroule en plusieurs phases sur les deux quadrimestres. [less ▲]Detailed reference viewed: 51 (24 ULg) Milk production, milking frequency and rumination time of grazing dairy cows milked by a mobile milking robot.Lessire, Françoise ; Hornick, Jean-Luc ; Minet, Julien et alin Conington, J; Klopcic, M; Lauridsen, C (Eds.) et al Book of abstracts of the 66th Annual meeting of the European Federation of animal science (2015, September 28)In Europe, analysis of meteorological data shows that the average temperature has increased by ~1°C over the past hundred years (IPCC, 2013). Heat stress periods are thus expected to be more frequent even ... [more ▼]In Europe, analysis of meteorological data shows that the average temperature has increased by ~1°C over the past hundred years (IPCC, 2013). Heat stress periods are thus expected to be more frequent even in temperate areas. The use of an automatic milking system (AMS) implies the need to stimulate cows’ traffic to the robot, especially with grazing cows. Describing how heat stress influenced cows’ traffic to the robot is the aim of this study. Grazing dairy cows milked by an automatic system (AMS) experienced heat stress (HS) periods, twice during the summer 2013 in July (J) and August (A). The daily temperature humidity index (THI) during these periods were higher than 75. Each HS period was compared with a “normal period”(N), presenting the same number of cows, similar lactation number, days in milk, distance to come back to the robot and an equal access to water. The first HS period of 5 days with a mean THI of 78.4 was chosen in J, and a second that lasted for 6 days in A with a THI value of 77.3. Heat stress periods were cut off with the same duration of days with no stress (N) and mean THI <70. Milk production, milkings and refusals to the robot during HS were compared with N periods. Milkings and refusals were significantly more numerous in HS periods in July (HS: 2.54 ± 0.11 vs N: 2.19 ± 0.08, 1.87 ± 0.20 vs 0.72 ± 0.16) but milk production dropped from 21.8 ±0.6 kg per cow and per day during N periods to 18.9 ± 0.8 kg in HS. In August, MY increased slightly during HS. This could be explained by less high ambient temperatures and decreased distance to walk inducing less energy expenditure. The increase in milkings and refusals to the robot during HS could be linked to water availability nearby the robot and confirmed previous findings (Lessire et al., 2014). [less ▲]Detailed reference viewed: 22 (1 ULg) Identification of a novel lung-resident eosinophil population with immunomodulatory properties in mice.Raulier, Stéfanie ; Mesnil, Claire ; Paulissen, Geneviève et alConference (2015, September 28)Detailed reference viewed: 22 (7 ULg) Asthma Control and Sputum Eosinophils: a Longitudinal Study in Daily PracticeDemarche, Sophie ; SCHLEICH, FLorence ; HENKET, Monique et alPoster (2015, September 27)Detailed reference viewed: 24 (11 ULg) Psychological benefits of a multidisciplinary rehabilitation program after breast cancerLeclerc, Anne-France ; FOIDART-DESSALLE, Marguerite ; Bury, Thierry et alConference (2015, September 27)Background : Breast cancer is the most frequent cancer in women, affecting 8 women out of 100. With early detection and improved treatments, the number of deaths linked to this disease has declined ... [more ▼]Background : Breast cancer is the most frequent cancer in women, affecting 8 women out of 100. With early detection and improved treatments, the number of deaths linked to this disease has declined. However, the disease and its treatments are at the origin of many undesirable side effects such as fatigue, anxiety, weight gain and sleep disorders. The objective of this study is to determine the psychological benefits of a multidisciplinary rehabilitation program among women treated for breast cancer (on average six months after the end of the adjuvant radiotherapy or chimiotherapy). Material and methods : 122 patients were included into a control group (n = 61) and a treated group (n = 61). All participants were submitted to evaluations before the beginning of the trial and after three months. These evaluations included different questionnaires exploring the quality of life, anxiety, depression and various functions and other symptoms related to cancer (EORTC QLQ-C30, EQ-5D, STAI, HADS) and functional assessments. The control group has received no intervention unlike the treated group that received a three-month rehabilitation including supervised physical training (90 min) with three times a week and various psycho-educational sessions (120 min) once a week. Results : After three months, the health status (quality of life) (p < 0,0001), the functional role (p = 0,031), emotional state (p < 0,0001) and physical (p = 0,0045), cognitive (p = 0,0027) and social functions (p = 0,0018) improve significantly in the treated group. This observation also applies to symptoms of fatigue (p < 0,0001), insomnia (p < 0,0001), pain (p = 0,002), dyspnea (p = 0,009), loss of appetite (p = 0,04), anxiety (p < 0,0001) and depression (p < 0,0001) as well as physical parameters obtained through functional assessments. In the control group, these improvements do not appear. Conclusions : This study shows the feasibility and psychological benefits of such a multidisciplinary oncological rehabilitation program in women after their treatments for breast cancer. Additional studies are needed to know the optimal time of beginning (during treatments or after them) and the optimal management time for this support. [less ▲]Detailed reference viewed: 38 (11 ULg) Physical benefits of a multidisciplinary rehabilitation program after breast cancerLeclerc, Anne-France ; FOIDART-DESSALLE, Marguerite ; Bury, Thierry et alPoster (2015, September 26)Background : Breast cancer is the most frequent cancer in women, affecting 8 women out of 100. With early detection and improved treatments, the number of deaths linked to this disease has declined ... [more ▼]Background : Breast cancer is the most frequent cancer in women, affecting 8 women out of 100. With early detection and improved treatments, the number of deaths linked to this disease has declined. However, the disease and its treatments are at the origin of many undesirable side effects such as fatigue, anxiety, weight gain and decreased physical fitness. The objective of this study is to determine the physical benefits of a multidisciplinary rehabilitation program among women treated for breast cancer (on average six months after the end of the adjuvant radiotherapy or chimiotherapy). Material and methods : 122 patients were included into a control group (n = 61) and a treated group (n = 61). All participants were submitted to evaluations before the beginning of the trial and after three months. These evaluations included functional assessments (a maximal incremental exercise protocol on a cycle ergometer, flexibility by Sit and Reach Test and walking distance by Six-Minute Walk Test), anthropometric and body composition measurements (Body Mass Index and body fat percentage) and different questionnaires on quality of life, anxiety and other symptoms related to cancer. The control group has received no intervention unlike the treated group that received a three-month rehabilitation including supervised physical training (90 min) with three times a week and various psycho-educational sessions (120 min) once a week. Results : After three months, maximal oxygen consumption (p < 0,0001), maximal aerobic power (p < 0,0001), peak of ventilation (p < 0,0001) and time to exhaustion (p = 0,0055) during the maximal incremental exercise protocol improve significantly in the treated group. This observation also applies to flexibility (p < 0,0001), walking distance in six minutes (p < 0,0001) and different physical and psychological parameters obtained through questionnaires. In the control group, these improvements do not appear and a significant increase in body mass index (p = 0,032) and body fat percentage (p = 0,034) is observed while these data remain constant in the treated group. Conclusions : This study shows the feasibility and physical benefits of such a multidisciplinary oncological rehabilitation program in women after their treatments for breast cancer. Additional studies are needed to know the optimal time of beginning (during treatments or after them) and the optimal management time for this support. [less ▲]Detailed reference viewed: 12 (4 ULg) Habitants des petites villes et des villages face à la nature dans les paysages ordinairesVanderheyden, Vincent Conference (2015, September 25)La recherche sur les perceptions paysagères dénigre souvent les paysages ordinaires, ces paysages modifiés par l’homme qui n’appellent pas à la protection. Pourtant, dans les régions de forte densité de ... [more ▼]La recherche sur les perceptions paysagères dénigre souvent les paysages ordinaires, ces paysages modifiés par l’homme qui n’appellent pas à la protection. Pourtant, dans les régions de forte densité de population comme la Belgique, les paysages naturels sont rares ou inexistants, sans pour autant que la nature ait disparu des paysages ordinaires. Il est donc intéressant de se poser la question de la nature dans de tels paysages : à partir de quand un paysage est-il perçu comme naturel par ceux qui l’observent ou y vivent ? Les critères dépendent-ils du mode d’habiter (petite ville, village périurbain ou village rural) ou d’autres facteurs liés à la trajectoire biographique des gens ? Trois terrains d’études ont été retenus pour la recherche : la Wallonie picarde, l’Entre-Sambre et Meuse et l’Ardenne. Ces terrains offrent des paysages ruraux assez typés et suffisamment différenciés et éloignés des grandes agglomérations urbaines, hormis Tournai, ville d’envergure régionale. La Wallonie picarde présente des paysages de vastes plateaux agricoles limoneux au relief plan et peu élevé, occasionnellement surplombé de petites collines. L’Entre-Sambre-et-Meuse offre des paysages mixtes, alternant cultures, prairies et boisement dans un relief plus accidenté d’altitude moyenne. Enfin, l’Ardenne, troisième terrain, montre des paysages de hauts plateaux disséqués, dominés par les massifs forestiers et les pâturages. Ces terrains offrent un bel aperçu du continuum urbain-rural belge : de la petite ville en milieu rural au semis d’habitat très lâche du village ardennais, loin de l’habituelle dichotomie ville - campagne. Dans ces terrains, une approche empirique a été privilégiée. Nous y avons interviewé trois groupes de neuf étudiants (18-25 ans) d’un niveau d’éducation moyen (Bac +1 à Bac +3), non spécialistes en analyse du paysage, habitant dans de petites villes ou villages et un de leurs parents. Durant l’enquête, les personnes devaient classer des photos de paysages ruraux belges plus ou moins impactés par la présence de l’homme (habitat, cultures, éoliennes, pylônes, zones périurbaines) puis devaient motiver leur classement. Les entretiens ont été enregistrés, retranscrits et codés à l’aide d’un logiciel d’analyse qualitative. L’analyse de contenu montre des résultats contrastés. Un certain consensus indépendant du mode d’habiter semble se dégager concernant la présence d’éléments anthropiques récents, tels quel les éoliennes, les zones industrielles ou les pylônes électriques : cela participe à la dénaturation d’un paysage, avec une subtile nuance pour les éoliennes, où la symbolique positive écologique peut pour certains contrebalancer la perte de naturalité induite. Chez des personnes vivant dans un milieu plus urbanisé, le paysage naturel attire, car il change des habitudes de vie. Certains n’hésitent pas à qualifier un paysage de naturel pour peu qu’il contienne suffisamment de végétation, fusse une vaste étendue agricole dédiée à la monoculture. Chez des personnes vivant dans des milieux très ruraux par contre, on ne constate pas toujours la tendance inverse : même la petite ville voisine semble parfois trop urbanisée à leurs yeux pour y vivre. A leurs yeux, les paysages deviennent moins attractifs au fur et à mesure que la densité du bâti devient perceptible. Plus qu’une analyse du visuel, cette recherche montre également que les gens s’imaginent être dans le paysage, entendant les bruits ou ressentant une perte de convivialité à mesure que le paysage s’industrialise ou se remplit de maisons. [less ▲]Detailed reference viewed: 20 (3 ULg) Tools for Measuring a City’s Resilience in a Fire Following Earthquake ScenarioElhami Khorasani, Negar; Gernay, Thomas ; Garlock, Mariain Proceedings of IABSE Conference - Structural Engineering: Providing Solutions to Global Challenges (2015, September 25)The paper provides a framework to evaluate the response of buildings in a community subject to fire following earthquake. First, a model is developed to determine the probability of ignition in buildings ... [more ▼]The paper provides a framework to evaluate the response of buildings in a community subject to fire following earthquake. First, a model is developed to determine the probability of ignition in buildings of a community due to an earthquake. Second, fragility functions are developed for buildings subject to fire, to quantify the structural damage and the expected losses. The ignition model, combined with the fragility functions, can be implemented in a GIS based risk management platform to evaluate economical losses in a region from fire following an earthquake. [less ▲]Detailed reference viewed: 108 (8 ULg) Physicochimie de la pollution atmosphériqueMahieu, Emmanuel Conference (2015, September 25)Detailed reference viewed: 16 (3 ULg) En tous quartiers ou j’ay esté. Le récit de pèlerinage de Georges Lengherand, mayeur de Mons (1486–1487)Bruwier, Marie-Cécile; Docquier, Gilles; Marchandisse, Alain Conference (2015, September 25)Detailed reference viewed: 13 (2 ULg) On generalized Hölder spacesKreit, Damien; Nicolay, Samuel Conference (2015, September 24)We introduce generalized pointwise Hölder spaces as the point wise version of generalized uniform Hölder spaces. These last ones can be seen as a special case of generalized Besov spaces.Detailed reference viewed: 16 (1 ULg) VALIDATION RELEVANCE OF ANALYTICAL METHODS IN BIOTECHNOLOGYMarini Djang'Eing'A, Roland ; Hubert, Philippe Conference (2015, September 24)Detailed reference viewed: 18 (1 ULg) Medicinal plants, malaria and biotechnologyFrederich, Michel ; Jansen, Olivia ; Muganga, Raymond et alConference (2015, September 24)The first part of the talk will be dedicated to the investigation of medicinal plants with the objective to identify new antimalarial treatments. According to the last World Malaria Report [1], there were ... [more ▼]The first part of the talk will be dedicated to the investigation of medicinal plants with the objective to identify new antimalarial treatments. According to the last World Malaria Report [1], there were 584 000 deaths for 198 millions malaria cases worldwide in 2013. Particularly, the disease caused an estimated 437 000 African children died before their fifth birthday, still in 2013. Malaria is caused by a parasite, Plasmodium sp. and transmitted by Anopheles mosquitoes. The problem of parasite resistance towards common available medicines such as chloroquine, mefloquine, quinine, is increasing. In this context, the vegetal kingdom remains the main source of pharmacologically active compounds against this parasitic infection as attested by the famous quinine, isolated from Cinchona sp., artemisinin extracted from Artemisia annua and also atovaquone derived from lapachol found in several Bignoniaceae. All these substances are related to plants with traditional use against fever and malaria. Beside these well-known examples, various new antiplasmodial compounds are frequently discovered from Nature, particularly following an ethnopharmacological approach, as reviewed by several authors in recent years [2-6]. Then, the pharmacological and phytochemical study of plants from traditional pharmacopoeias can be of first interest not only to discover new antimalarial “lead compounds”, but also to valorize local vegetal species whose efficacy and safety would have been demonstrated in laboratory and by clinical investigations [7,8]. Some results obtained with Dicoma tomentosa from Burkina-Faso [9] and Terminalia mollis from Rwanda [10] will be presented. In the second part of the talk, two applications of biotechnology for the production of artemisinin and paclitaxel and then some works developed at the ‘Université de la Réunion’ will be presented. In the framework of this collaboration, Psiadia arguta, an endemic plant from Reunion Island, which is known to have cytotoxic, anti-plasmodial and anti-inflammatory properties, was subjected to micropropagation. The objective of the work was to compare the biological properties and the phytochemical composition of callus, vitroplants and acclimatized plants of Psiadia arguta [11]. 1. WHO, World Malaria Report 2014, December 2014, Geneva (http://www.who.int/malaria/publications/world_malaria_report_2014/en/). 2. Batista R, Silva Ade J Jr, de Oliveira AB: Plant-derived antimalarial agents: new leads and efficient phytomedicines. Part II. Non-alkaloidal natural products. Molecules 2009, 14:3037-72. 3. Bero J, Frédérich M, Quetin-Leclercq J : Antimalarial compounds isolated from plants used in traditional medicine. Journal of Pharmacy and Pharmacology 2009, 61:1401–1433. 4. Bero J and Quetin-Leclercq J: Natural products published in 2009 from plants traditionally used to treat malaria. Planta Medica 2011, 77:631-40. 5. Kaur K, Jain M, Kaur T, Jain R: Antimalarials from nature. Bioorganic & Medicinal Chemistry 2009, 17:3229–3256. 6. Nogueira CR and Lopes LMX: Antiplasmodial Natural Products. Molecules 2011, 16:2146-2190 7. Ginsburg H and Deharo E: A call for using natural compounds in the development of new antimalarial treatments – an introduction. Malaria Journal 2011, 10 (suppl. 1):S1 8. Willcox M, Graz B, Falquet J, Diakite C, Giani S, Diallo D: A “reverse pharmacology” approach for developing an antimalarial phytomedicine. Malaria journal 2011, 10(suppl1):S8 9. Jansen, O., Tits, M., Angenot, L., Nicolas, J.-P., De Mol, P., Nikiema, J.-B., & Frédérich, M : Anti-plasmodial activity of Dicoma tomentosa (Asteraceae) and identification of urospermal A-15-O-acetate as the main active compound. Malaria Journal 2012, 11, 289. 10. Muganga, R., Angenot, L., Tits, M., & Frédérich, M : In vitro and in vivo antiplasmodial activity of three Rwandan medicinal plants and identification of their active compounds. Planta Medica 2013, 80(6), 482-489. 11. Mahy Justine, Comparative study of biological activities and analysis of volatile compounds of Psiadia arguta in various cultures: vitroplants and acclimatized plants. Mémoire de M2, 2013, Université de Liège/Université de la Réunion. [less ▲]Detailed reference viewed: 56 (1 ULg) Performances of a simple exhaust mechanical ventilation coupled to a mini heat pump: modeling and experimental investigationsRansy, Frédéric ; Gendebien, Samuel ; Lemort, Vincent Conference (2015, September 24)According to the European directive 2012/27/EU of October 2012 on energy efficiency, buildings represented 40 % of the EU’s final energy consumption in 2011. The major part of this energy consumption is ... [more ▼]According to the European directive 2012/27/EU of October 2012 on energy efficiency, buildings represented 40 % of the EU’s final energy consumption in 2011. The major part of this energy consumption is due to the residential sector for space heating and domestic hot water production. Moreover, buildings are crucial to achieve the EU objective of reducing greenhouse gas emissions by 80-95 % by 2050 compared to 1990. In order to reduce these greenhouse gas emissions, retrofit measures regarding insulation and air-tightness have to be taken. However, such improvements of the building envelope lead to a relative increase in consumption related to ventilation. Indeed, according to Orme (2001), Roulet et al. (2001) and Fouih et al. (2012), the heating demand due to ventilation can reach more than 50 % of the total building heating demand for new and retrofitted buildings. To reduce the energy consumption due to ventilation, exhaust air heat pumps (EAHPs) can be used instead of the traditional heat recovery with an air-to-air heat exchanger. EAHPs recover heat from the exhaust air of the ventilation system to produce domestic hot water and space heating. According to Fehrm et al. (2002), this technology is already widely used in the northern countries such as Germany and Sweden. In fact, according to Fracastoro et al. (2010), efficiencies of EAHPs are higher than those obtained with outside air or geothermal heat pumps in certain conditions, whatever the climate location. Berg et al. (2010) have monitored three houses in Sweden equiped with exhaust air heat pumps. The seasonal performance factor (SPF) values were all within the range 1.4-1.7. This factor takes into account the energy consumption of the heat pumps and the auxiliary heating systems. A 17 kW exhaust air heat pump has also been tested by Mikola et al. (2014). The measured SPF for the heat pump only (without taking into account the auxiliary heating system) was about 2.9-3.4 in winter and 3 in the summer. Exhaust air heat pumps coupled with simple exhaust mechanical ventilation systems have many advantages compared to traditional balanced systems with heat recovery: • Only one fan is necessary and the duct system is simpler. Consequently, EAHPs are suitable for retrofitted buildings. • The heat pump can provide the whole part of the heating demand related to domestic hot water and 50 % of the heating demand related to space heating, according to Fracastoro et al. (2010). • The heat pump can also provide active cooling by inversing the refrigerating cycle. • The heat pump performance is high and remains constant with outdoor temperature changes since the temperature of the heat sink is constant (20°C). As a result, the system is cost-effective. • The system is compact, quiet and requires little maintenance. In the present paper, the energetic performances of an exhaust air heat pump are assessed through numerical and experimental studies. The thermal capacity of the machine is 1.5 kW when the inside air temperature is 20°C and the outside water temperature is 35°C. The heat pump is therefore ideally suited for new or retrofitted buildings. The system including a mechanical exhaust ventilation system and an exhaust air heat pump is first presented. Secondly, the heat pump model used afterwards to determine the heat pump seasonal performance factor is described. Thirdly, the model is calibrated to fit the measurement data. Finally, the heat pump model is coupled to a building model to determine the annual performance of the system. The system is compared to a traditional balanced ventilation system with heat recovery in terms of primary energy consumption, for different heating and DHW production systems (electric heater, heat pump, gas condensing boiler). [less ▲]Detailed reference viewed: 46 (8 ULg) Myoferlin: an indispensable component in VEGFA secretion by pancreas cancer cells.Fahmy, Karim Poster (2015, September 24)In this poster, our laboratory showed the importance of myoferlin, a biomarker of pancreas cancer, in the controle of VEGF-A mediated angiogenesis. Our laboratory showed that silencing myoferlin in ... [more ▼]In this poster, our laboratory showed the importance of myoferlin, a biomarker of pancreas cancer, in the controle of VEGF-A mediated angiogenesis. Our laboratory showed that silencing myoferlin in pancreas cancer cells, BxPC-3, provoques a decrease in cell prolifération in vitro and a decrease in tumor volumes in animal model. Myoferlin silencing also provokes a decrease in VEGF-A secretion in the conditioned medium and that decrease was abserved in the animal model as a decrease in microvessels dencity. It appeared that this decrease in secretion is due to a a blockage in the exocytosis. Our data also showed a significate correlation between myoferlin expression and microvessels density in patients section. [less ▲]Detailed reference viewed: 21 (2 ULg) Interdisciplinary research: a conditio sine qua non for agricultural soil management?Garré, Sarah ; Artru, Sidonie ; Boeraeve, Fanny et alPoster (2015, September 23)Detailed reference viewed: 23 (1 ULg) Stratospheric HCl increasing again, caused by dynamic variability, driven by increased tropopsheric wave activityNotholt, J; Mahieu, Emmanuel ; Pfloeger, F et alConference (2015, September 22)Detailed reference viewed: 13 (1 ULg) Palynomorphs (miospores, acritarchs, prasinophytes) before and during the Hangenberg crisisStreel, Maurice Poster (2015, September 21)Detailed reference viewed: 12 (0 ULg) Air-sea ice gases exchange: update of recent findings, outcomes from sea ice models, caveats and open questionsDelille, Bruno ; Zhou, Jiayun; Kotovitch, Marie et alConference (2015, September 21)There are growing evidences that sea ice exchanges climate gases with the atmosphere. We will rapidly present a state of the art of current large scale assessment of spring and summer uptake of ... [more ▼]There are growing evidences that sea ice exchanges climate gases with the atmosphere. We will rapidly present a state of the art of current large scale assessment of spring and summer uptake of atmospheric CO2. We will challenge these assessments with 1) new evidence of significant winter CO2 release for winter experiments 2) new finding of the role of bubbles formation and transport within sea ice and 3) impurities expulsion derived from combined artificial ice experiment and modelling. Finally, comparison of air-ice fluxes derived from automated chamber and micrometeorological method and, mechanistic and box models show significant discrepancies that suggest that the contribution of sea ice to the air-ocean fluxes of CO2 remain an open question. We will also highlight that sea ice contribute to the fluxes of other gases as CH4 ,N2O and DMS [less ▲]Detailed reference viewed: 14 (3 ULg) Pathways of recurrent high-grade squamous intraepithelial lesions of the cervixHerfs, Michael Conference (2015, September 20)Detailed reference viewed: 8 (0 ULg) The importance of physical educators’ representations about physical activityCloes, Marc Conference (2015, September 18)Physical education (PE) teachers need to develop clear representaitons about physical activity (PA). In fact, they have to promote an active lifestyle among their pupils/students and it will not be ... [more ▼]Physical education (PE) teachers need to develop clear representaitons about physical activity (PA). In fact, they have to promote an active lifestyle among their pupils/students and it will not be possible without developing an extended knowledge about physical activity. This presentation has been designed in order to make the PE teachers and their trainers that their representations about PA could be worse than they believe. Moreover, the interactive way of this presentation will provide an interesting example of an approach that could be used on the field. [less ▲]Detailed reference viewed: 34 (1 ULg) Nid de coucou. De quelques performances filmées dans l'espace public.Hamers, Jérémy Conference (2015, September 18)Detailed reference viewed: 18 (1 ULg) EFFECT OF TRUNK MOTOR CONTROL TRAINING IN ELITE SOCCER PLAYERS WITH LOW BACK PAINGROSDENT, Stéphanie ; Demoulin, Christophe ; Rodriguez de la Cruz, Carlos et alPoster (2015, September 18)Background and aims: The purpose of this study was to examine the effect of a motor control training program on the lumbopelvic motor control (LMC) in elite soccer players with a history of low back pain ... [more ▼]Background and aims: The purpose of this study was to examine the effect of a motor control training program on the lumbopelvic motor control (LMC) in elite soccer players with a history of low back pain (LBP). Methods: Twenty-four male elite soccer players (mean age of 18.3 years) filled in questionnaires related to LBP and were divided into two groups: 12 players with a history of LBP (LBP group) and 12 players without a history of LBP (no LBP group). Then, they performed five LMC tests [the Bent Knee Fall Out test (BKFO), the Knee Lift Abdominal Test (KLAT), the Sitting Knee Extension Test (SKET), the Waiter’s Bow (WB) and the test of the transversus abdominis (TrA)] which were conducted and scored (0=failed, 1=correct) by a physiotherapist, blinded to the medical history of the participants. The total LMC score (ranging from 0 to 5) was calculated by adding the score at each test. During the following 10 weeks, the no LBP group conducted a soccer training as usual while LBP group performed an additional specific core stability program (1h/week). Results: At baseline, the participants of the LBP group had a worse LMC than the no LBP group (mean LMC score of 1.1 vs 3.1, p<0.01). The between-groups difference was particularly marked for the BKFO (p<0.01), KLAT (p<0.01) and SKET (p<0.05) tests. At the end of the intervention program, the LMC score of the players with a history of LBP increased significantly (p<0.0001) and was similar to the score of the players without a history of LBP (mean LMC score of 3.2 vs 3.3, p=1.00). Conclusions: LMC can be decreased in elite active soccer players with a history of LBP. Specific core stability program is effective to improve LMC in these players. [less ▲]Detailed reference viewed: 73 (2 ULg) Dietary mineral intakes of young Tibetan children living in areas endemic for Kashin-Beck disease: preliminary results of a cross-sectional surveyDERMIENCE, Michael ; Mathieu, Françoise; Li, Xiaowei et alConference (2015, September 18)Kashin-Beck disease (KBD) is an endemic and chronic osteochondropathy whose etiology remains unclear. Environmental factors are assumed to be involved, among which the selenium and iodine deficiency is ... [more ▼]Kashin-Beck disease (KBD) is an endemic and chronic osteochondropathy whose etiology remains unclear. Environmental factors are assumed to be involved, among which the selenium and iodine deficiency is frequently cited. The prevalence rate may be high in some rural areas of the Tibet Autonomous Region. The diet of the rural community is significantly different from the other communities (nomads and city-dwellers), who remains unaffected by KBD. Because their foods are mainly derived from local agriculture and artisanal production, their mineral composition may show significant discrepancies when compared with food composition data. The present survey aims at assessing the mineral dietary intakes of young Tibetan children living in rural areas endemic for the Kashin-Beck disease. A cross-sectional survey enrolling 250 children was carried out. The intakes were recorded for two days, on two different seasons, by the 24-hour food recall method. The minerals investigated were selected for their implication in bone metabolism and a specific food composition table was compiled from the China Food composition (book 1, 2nd edition), the USDA Food search for Windows (Version 1.0, Database version SR23), and a broad investigation on mineral composition of local and traditional Tibetan foods (Dermience et al., 2014). The calculation of daily intakes for the first season is now complete and some trends are emerging. Preliminary results suggest, inter alia, that the intakes of calcium are too low with unfavorable calcium to phosphorus ratio. On the contrary, sodium and manganese intakes are too high and could exceed tolerable upper levels. [less ▲]Detailed reference viewed: 17 (3 ULg) New methodology using Ion Mobility Mass Spectrometry for structural characterization and cysteine connectivity identification of peptides bearing intra-molecular disulfide bondsMassonnet, Philippe ; Upert, Gregory; Haler, Jean et alConference (2015, September 18)Detailed reference viewed: 24 (7 ULg) Innovation in Veterinary Education. Innovative tools to teach pregnancy and parturition in the horse.Hanzen, Christian ; Govaere, JanConference (2015, September 18)Detailed reference viewed: 63 (2 ULg) Surgir dans le paysage urbain. Analyse sociocritique du projet SelfiecityHagelstein, Maud Conference (2015, September 17)Mon intérêt pour le selfie s’inscrit dans le cadre d’une réflexion plus large sur la photographie vernaculaire (ou commune – au double sens du terme), c’est-à-dire celle qui n’est ni professionnelle, ni ... [more ▼]Mon intérêt pour le selfie s’inscrit dans le cadre d’une réflexion plus large sur la photographie vernaculaire (ou commune – au double sens du terme), c’est-à-dire celle qui n’est ni professionnelle, ni explicitement artistique. Le selfie est un outil visuel qui me semble pouvoir bien fonctionner avec la thématique de l’espace urbain : *le selfie travaille à la mise en scène d’un sujet dans un contexte au sein duquel il s’implique, le sujet ayant ceci de particulier qu’il se constitue à la fois comme observateur d’une scène, opérateur de l’image (= opérateur de la représentation de cette scène) et comme figurant de celle-ci (partie de son contenu). *En tant qu’il indique donc bien souvent une interaction entre un sujet et son environnement (spatial, social), le selfie pourrait être un bon indicateur du rapport de figuration, d’intégration, liant l’homme à son espace urbain (direct ou indirect). Il m’intéressera ici pour une seconde raison (dont les enjeux sont plus directement politiques) : puisque le dispositif est relativement nouveau, en développement, le selfie peut servir en quelque sorte de laboratoire dans lequel on pourrait observer la constitution de normes formelles. Autrement dit, la nouveauté de cette forme d’expression lui permet d’échapper relativement (et sans doute provisoirement) à l’inévitable institutionnalisation progressive que connaît généralement l’art urbain. [less ▲]Detailed reference viewed: 32 (1 ULg) On the importance to consider sequential presentation in magnitude processing for mathematical ability: evidence from Turner syndromeAttout, Lucie ; Noël, Marie-Pascale; Rousselle, Laurence Poster (2015, September 17)Detailed reference viewed: 13 (0 ULg) Use of dual carbon-chlorine isotope analysis to identify degradation pathways of 1,1,1-trichloroethane in groundwaterPalau, Jordi; Jamin, Pierre ; Badin, Alice et alConference (2015, September 17)The high susceptibility of chlorinated aliphatic hydrocarbons (CAHs) like 1,1,1-trichloroethane (1,1,1-TCA) to be transformed via different competing pathways (biotic and abiotic) complicates the ... [more ▼]The high susceptibility of chlorinated aliphatic hydrocarbons (CAHs) like 1,1,1-trichloroethane (1,1,1-TCA) to be transformed via different competing pathways (biotic and abiotic) complicates the assessment of their fate in groundwater. This knowledge is necessary to evaluate contaminant degradation and potential formation of toxic intermediates. Identifying pathways is further complicated in sites contaminated by mixed CAHs because some degradation products of 1,1,1-TCA can be formed from different precursors. Here, identification of pathways based solely on substrate-product concentration relationships may lead to ambiguous interpretations. This study investigates, for the first time, dual C−Cl isotope fractionation as a means of identifying and assessing degradation pathways of 1,1,1-TCA in groundwater. Distinctly different dual isotope trends (L = Δδ13C/Δδ37Cl) were observed for 1,1,1-TCA transformation via oxidation with heat-activated persulfate (L = ∞), reduction with zerovalent iron (L = 1.5 ± 0.1), hydrolysis and dehydrohalogenation (HY/DH, L = 0.33 ± 0.04) in laboratory experiments, illustrating the potential of a dual isotope approach. This approach was evaluated in an aerobic aquifer impacted by 1,1,1-TCA and trichloroethylene (TCE) with concentrations of up to 20 mg/L and 3.4 mg/L, respectively. For 1,1,1-TCA, the dual isotope slope determined from field samples (L = 0.6 ± 0.2, r2 = 0.75) was close to the slope observed for HY/DH in the laboratory (L = 0.33 ± 0.04), indicating that HY/DH was the predominant degradation pathway of 1,1,1-TCA in the aquifer. The observed deviation could be explained by a minor contribution of additional degradation processes. This result, along with the little degradation of TCE determined from isotope measurements, confirmed that 1,1,1-TCA was the main source of the 1,1-dichlorethylene (1,1-DCE) detected in the aquifer with concentrations of up to 10 mg/L. This study demonstrates that a dual C-Cl isotope approach can strongly improve the qualitative and quantitative assessment of 1,1,1-TCA degradation processes in the field. [less ▲]Detailed reference viewed: 14 (0 ULg) Hydrogeological assessment of diaphragm walls used to excavate deep shafts associated to tunnels constructionPujades, Estanislao ; Jurado, Anna; Carrera, Jesus et alPoster (2015, September 17)Deep shafts are usually required during tunnels construction (for maintenance tasks when tunnel boring machines –TBM- are used) and/or the operation stage of tunnels (emergency exits). Generally, these ... [more ▼]Deep shafts are usually required during tunnels construction (for maintenance tasks when tunnel boring machines –TBM- are used) and/or the operation stage of tunnels (emergency exits). Generally, these shafts are constructed below the water table and by the cut and cover method. Therefore, impervious diaphragm walls are desired for two main reasons: (1) to reduce risks (stability, inflows, flooding, etc.) and outside impacts (loose of groundwater resource, holes and sinkholes, etc.) during the excavation stage of a shaft and, (2) to avoid leaks and inflows of groundwater during the operation stage once the shaft is finished. Given that defects in diaphragm walls are frequent and can relatively easy be repaired before starting the excavation stage, a useful and new methodology to assess the state of enclosures before excavation is proposed. Its use would allow to reduce impacts on groundwater (construction and operation stages) and costs in case of defects as well as to increase the safety during the construction. The groundwater response regarding different scenarios of diaphragm walls is studied numerically in order to propose a successful procedure to evaluate underground enclosures imperviousness by internal pumping tests. The scenarios consist in circular and square enclosures where the diaphragm walls are assumed as homogeneous (with numerous defects) or heterogeneous (one discrete defect). The homogeneous cases are modeled by considering different effective hydraulic conductivities, while the size and position of the single defect is varied in the simulations of heterogeneous walls. An analysis of diagnostic plots and the comparison between the expected and measured groundwater evolutions inside the enclosure, is proposed to ascertain: (1) if the diaphragm walls can be considered as homogeneous or heterogeneous, (2) the effective hydraulic conductivity of the walls (if they are homogeneous) and, (3) the position of a defect (if they are heterogeneous). [less ▲]Detailed reference viewed: 8 (2 ULg) Underground Pumped Storage Hydroelectricity (UPSH) using abandoned worksPujades, Estanislao ; Willems, Thibault ; Orban, Philippe et alPoster (2015, September 17)Underground Pumped Storage Hydroelectricity (UPSH) using abandoned works is an interesting alternative to increase the efficiency of some power plants, which cannot regulate the amount of electricity ... [more ▼]Underground Pumped Storage Hydroelectricity (UPSH) using abandoned works is an interesting alternative to increase the efficiency of some power plants, which cannot regulate the amount of electricity generated according to the demand. UPSH plants can store (pumping water from an underground to an upper reservoir) or produce energy (releasing water from an upper to an underground reservoir) during the low or high demand periods. Two considerations must be taken into account in order to construct an UPSH plant: 1) the alteration of the natural conditions of aquifers and 2), the efficiency of the plant, which depends on the hydraulic head inside the underground reservoir. Obviously, a detailed numerical model must be necessary to design a plant. However, a screening methodology to apply during the early stages of the design of a UPSH plant in order to reject the most disadvantageous sites in a short period of time would be useful. Groundwater flow impacts caused by UPSH plants are analyzed numerically and the main variables involved in the groundwater evolution are identified. The most noticeable effect consists in an oscillation of the groundwater. The hydraulic head around which groundwater oscillates, the magnitude of the oscillations and the time to achieve a pseudo-steady state (magnitude and head reached during oscillations do not vary anymore with time) depend on the boundaries, the parameters of the aquifer and the characteristics of the underground reservoir. From the numerical study, a screening methodology, which is based on existing analytical procedures (solutions for large diameter wells, methodologies for cyclic pumpings and the image well theory), is proposed to assess the main impacts caused in aquifers by UPSH plants and their efficiency regarding the groundwater evolution inside the reservoir. The procedure can be applied in a relatively short period of time and is useful to select those appropriate sites to construct a UPSH plant. [less ▲]Detailed reference viewed: 19 (6 ULg) Stability and Aging of Phase Change Materials : An Ab Initio PerspectiveRaty, Jean-Yves Conference (2015, September 17)Data recording with Phase Change Materials is a much studied topic as the writing/erasing characteristics, cyclability and downscaling properties of these materials allow for efficient data storage in ... [more ▼]Data recording with Phase Change Materials is a much studied topic as the writing/erasing characteristics, cyclability and downscaling properties of these materials allow for efficient data storage in future generations of devices. Nevertheless, some aspects of phase change materials are limiting their performances and delaying their wider technological application. First, aging phenomena are common to all amorphous structures, but of special importance PCMs since it impedes the realization of multi-level memories. Different interpretations have been proposed, but we focus here on the structural relaxation of amorphous GeTe, chosen because it is the simplest system that is representative of the wider class of GST alloys, lying along the GeTe-Sb2Te3 composition line of the GeSbTe phase diagram. One difficulty encountered in the simulation of these amorphous systems is that the direct generation of an amorphous structure by quenching a liquid using Density Functional Theory (DFT) based Molecular Dynamics leads to one sample with a small number of atoms, and, hence of small number of atomic environments. Here we sample a large number of local atomic environments, corresponding to different bonding schemes, by chemically substituting different alloys, selected to favor different local atomic structures. This enables spanning a larger fraction of the configuration space relevant to aging. Our results support a model of the amorphous phase and its time evolution that involves an evolution of the local (chemical) order towards that of the crystal. On the other hand its electronic properties drift away from those of the crystal, driven by an increase of the Peierls-like distortion of the local environments in the amorphous, as compared to the crystal [1]. A second problem faced by PCMs is the fact that data recording is limited at high temperature due to the increased propensity to recrystallize. One approach to counter this is to stabilize the PCM using impurity atoms such as C or N. Using DFT and the analysis of the mechanical properties (constraints theory), we demonstrate how these impurity atoms modify the rigidity of the network, which is experimentally correlated with the activation energy for crystallization [2]. Finally, the crystal phase itself has been shown to have variable conductivities depending on the thermal history and annealing conditions. If this could be used profitably for multi-level recording, it also indicates that the crystal is undergoes some temporal evolution. Using DFT, we clarify the stability behavior of GST crystal and show that the metal-insulator transition is driven by the migration of intrinsic vacancies and an Anderson localization transition [3]. [1] J.Y Raty, W. Zhang, J. Luckas, C. Chen, R. Mazzarello, C. Bichara and M. Wuttig, Nat. Comm. (2015) [2] G. Ghezzi, J.Y. Raty, S. Maitrejean, A. Roule, E. Elkaim and F. Hippert, Applied Physics Letters, 99 (2011) 151906 [3] W. Zhang, A. Thiess, P. Zalden, R. Zeller, P. H. Dederichs, J-Y. Raty, M.Wuttig, S. Blügel et R. Mazzarello, Nature Materials 11 (2012) 952 [less ▲]Detailed reference viewed: 47 (2 ULg) Geophysics for the quantification of water fluxes in the soil-plant systemGarré, Sarah ; Binley, AndrewConference (2015, September 17)Detailed reference viewed: 15 (0 ULg) Exoplanet science with the LBTI: instrument status and plansDefrère, D.; Hinz, P.; Skemer, A. et alin Shaklan, Stuart (Ed.) Techniques and Instrumentation for Detection of Exoplanets VII (2015, September 16)The Large Binocular Telescope Interferometer (LBTI) is a strategic instrument of the LBT designed for high-sensitivity, high-contrast, and high-resolution infrared (1.5-13 $\mu$m) imaging of nearby ... [more ▼]The Large Binocular Telescope Interferometer (LBTI) is a strategic instrument of the LBT designed for high-sensitivity, high-contrast, and high-resolution infrared (1.5-13 $\mu$m) imaging of nearby planetary systems. To carry out a wide range of high-spatial resolution observations, it can combine the two AO-corrected 8.4-m apertures of the LBT in various ways including direct (non-interferometric) imaging, coronagraphy (APP and AGPM), Fizeau imaging, non-redundant aperture masking, and nulling interferometry. It also has broadband, narrowband, and spectrally dispersed capabilities. In this paper, we review the performance of these modes in terms of exoplanet science capabilities and describe recent instrumental milestones such as first-light Fizeau images (with the angular resolution of an equivalent 22.8-m telescope) and deep interferometric nulling observations. [less ▲]Detailed reference viewed: 19 (1 ULg) Building bridges (preliminary steps towards a new dictionary of Ancient Egyptian)Winand, Jean Conference (2015, September 16)Detailed reference viewed: 19 (0 ULg) Learning to look - Purpose and design of an awareness-raising online course in veterinary sciencesTasnier, Sophie ; Busoni, Valeria ; Hanzen, Christian et alin Prilla, M; Ullmann, T; Kravcik, M (Eds.) et al Proceedings of the 5th Workshop on Awareness and Reflection in Technology-Enhanced Learning (2015, September 15)This paper reports on a work in progress: an online self-instruction course created to stimulate students’ awareness processes when dealing with pictures. Using non-clinical material, the “Learning to ... [more ▼]This paper reports on a work in progress: an online self-instruction course created to stimulate students’ awareness processes when dealing with pictures. Using non-clinical material, the “Learning to Look” course was de-signed as a preliminary training to the observation of histological sections, radi-ological graphs, and other specialized visual material. Following a presentation of the project, salient results of a feedback questionnaire completed by 382 stu-dents about their experience of the course are provided. [less ▲]Detailed reference viewed: 19 (1 ULg) Annotations as reflection amplifiers in online learning - An exploratory studyVerpoorten, Dominique ; Specht, Marcus; Westera, Wimin Ullmann, T; Kravcik, M; Mikroyannidis, A (Eds.) et al Proceedings of the 5th Workshop on Awareness and Reflection in Technology-Enhanced Learning (ARTEL). In conjunction with the 10th european conference on technology enhanced learning: Design for teaching and learning in a networked world. (2015, September 15)In a controlled experiment on the effects of frequent and local digital annotations, 137 volunteers covered an online course at 3 conditions: no/free/question-based electronic annotations. Results show no ... [more ▼]In a controlled experiment on the effects of frequent and local digital annotations, 137 volunteers covered an online course at 3 conditions: no/free/question-based electronic annotations. Results show no difference in performance between groups. However, analyses conducted within treatments suggest positive impacts on performance when annotation rates are taken into consideration, and coupled with other reflective enactments. [less ▲]Detailed reference viewed: 25 (0 ULg) Empirical comparison of scoring rules at early stages of CATMagis, David Conference (2015, September 15)Usual scoring rules in CATs include maximum likelihood (ML), weighted likelihood (WL) and Bayesian approaches. However, at early stages of adaptive testing, only a few item responses are available so the ... [more ▼]Usual scoring rules in CATs include maximum likelihood (ML), weighted likelihood (WL) and Bayesian approaches. However, at early stages of adaptive testing, only a few item responses are available so the amount of information is very limited and in addition constant patterns (i.e. only correct or only incorrect responses) are often observed, yielding ML scoring intractable. Specific scoring rules (such as fixed- or variable stepsize adjustments) were developed for that purpose. However recent research highlighted that both Bayesian and WL scoring rules may provide finite values even with small sets of items. The purpose of this presentation is twofold: (a) to make a quick review of available scoring rules at early stages of CAT, and (b) to present empirical results from a simulation study that compares those scoring rules. More precisely, three scoring scenarios will be investigated: stepsize adjustment followed by ML, Bayes or WL followed by ML, and constant scoring rule throughout the CAT. These methods will be compared by means of simulated item banks and under various CAT scenarios for next item selection and stopping rules. Empirical results will be presented and practical guidelines for early stage scoring will be outlined. [less ▲]Detailed reference viewed: 15 (1 ULg) Towards processes-based groundwater vulnerability assessmentsDassargues, Alain ; Popescu, Cristina; Brouyère, Serge Conference (2015, September 15)Various groundwater vulnerability methods have recently been developed. Considering groundwater quality issues, the most common techniques are based on calculation of an index expressing the protective ... [more ▼]Various groundwater vulnerability methods have recently been developed. Considering groundwater quality issues, the most common techniques are based on calculation of an index expressing the protective effect (i.e. in terms of solute contaminant transport) of underground formations overlying the groundwater resource (Gogu & Dassargues, 2000, Gogu et al., 2003)). However, there is a strong need for new methods giving more emphasis on the processes-based calculation of vulnerability indicators. As a first alternative, a method is proposed based on three factors describing a pollution event (Brouyère et al., 2001): (1) the transit time from the source to the target, (2) the duration of the contamination breakthrough at the target, (3) the ratio between the maximum concentration at the target to the released concentration at the contamination source. The method can feature the impact of surface runoff to preferential infiltration points. Practically, the assessment can then be based on the simulated breakthrough curves at the ‘target’ corresponding to Dirac-type solicitations (Popescu et al., 2008). Different vulnerability maps can be built according to the relative importance conventionally given to each of the three factors. This concept allows a clear distinction between conventional aspects and processes-based results in the building of a final vulnerability indicator. A second proposal consists in reframing the groundwater vulnerability assessment in a Pressure-State-Impact causal chain that is familiar to decision makers (Beaujean et al., 2013). The method is here based on the calculation of sensitivity coefficients for a user-defined groundwater state for which several physically-based indicators are proposed. The sensitivity coefficients reflect the easiness with which the groundwater state transmits pressures into impacts. They are converted to vulnerability, using the concept of ‘transgressing a given threshold’ (Luers et al., 2003). While the methodology is general and can be applied in quantity as quality issues, the choice of causal chains has to be made prior to the calculation. The vulnerability is also related to a damaged state and is related to the ‘distance’ between the current state and a given threshold. Here also, the method allows a clear distinction between conventional choices (threshold) and scientific work (Dassargues et al., 2009). [less ▲]Detailed reference viewed: 22 (1 ULg) Corporate Board Attributes and CAC: A Comparative Study of France, Germany and UKBoussaid, Nabila ; Hamza, Taher; Sougné, Danielle Conference (2015, September 14)This paper investigates the impact of corporate board of directors’ attributes on conditional accounting conservatim in the French, German and British contexts. Using pooled regression model over the ... [more ▼]This paper investigates the impact of corporate board of directors’ attributes on conditional accounting conservatim in the French, German and British contexts. Using pooled regression model over the period 2009-2012, our findings report that the relationship between corporate board attributes and accounting conservatism is country dependent. First, regarding the board composition, we find that the effect of board size is positive for German firms, negative for French firms and insignificant for British firms. We also document a positive association between board independence and accounting conservatism for British firms. However, we find no evidence of a positive association between codetermination and earnings conservatism in German context. Second, female seats on board seem to increase conservative reporting in financial statement only for French firms. Lastly, board meeting frequency in French and British firms appears to increase accounting conservatism. As a robustness test, we use an alternative measure of accounting conservatism namely, time–series of earnings changes measure and confirm the previous results. Overall, our results reveal that corporate board affects the financial reporting quality. [less ▲]Detailed reference viewed: 21 (1 ULg) The Red Marble of Baelen, an exceptional mid-Famennian mud mound complex in a carbonate ramp setting from Eastern BelgiumDreesen, Roland; Vachard, Daniel; Marion, Jean-Marc et alPoster (2015, September 14)The Red Marble of Baelen from the Limbourg area (Vesdre Basin, Eastern Belgium) represents a member of the middle Famennian (late Upper Devonian) Souverain-Pré Formation (Late marginifera conodont Zone ... [more ▼]The Red Marble of Baelen from the Limbourg area (Vesdre Basin, Eastern Belgium) represents a member of the middle Famennian (late Upper Devonian) Souverain-Pré Formation (Late marginifera conodont Zone). It corresponds to a short-term transgressive event and eustatic rise during the Famennian, interrupting the regressive megasequence on the Condroz shelf in Belgium. It is the only known or at least the only well-documented mid-Famennian carbonate mud mound complex worldwide, after the end-Frasnian mass extinction that wiped out numerous invertebrate taxa. [less ▲]Detailed reference viewed: 24 (1 ULg) METABOLOMIC STUDY OF MOUSE KIDNEY AND URINE FOLLOWING RENAL ISCHEMIA/REPERFUSIONJouret, François ; Leenders, Justine ; POMA, Laurence et alPoster (2015, September 13)Detailed reference viewed: 15 (2 ULg) RENAL ISCHEMIA/REPERFUSION DECREASES THE EXPRESSION OF TYPE 4 DIPEPTIDYL-PEPTIDASE (DPP-4) AT BOTHRowart, Pascal ; ERPICUM, Pauline ; Defraigne, Jean-Olivier et alConference (2015, September 13)Detailed reference viewed: 12 (3 ULg) Pt-Ni Hollow Nanoparticles for Oxygen Reduction Reaction : Controlling the Nanoparticle MorphologyAsset, Tristan ; Zubiaur, Anthony ; Chattot, Raphael et alPoster (2015, September 13)Detailed reference viewed: 22 (1 ULg) IMPACT OF TIMING ADMINISTRATION OF MESENCHYMAL STROMAL CELLS ON SERUM CREATININE FOLLOWING RENALErpicum, Pauline ; Rowart, Pascal ; POMA, Laurence et alConference (2015, September 13)Detailed reference viewed: 23 (2 ULg) 18FDG-PET/CT IMAGING IN SUSPECTED ACUTE RENAL ALLOGRAFT REJECTIONLOVINFOSSE, Pierre ; WEEKERS, Laurent ; BOVY, Christophe et alConference (2015, September 13)The diagnosis procedure for kidney transplant recipients (KTR) with suspected acute rejection (AR) relies on needle biopsy. Noninvasive tests to predict nonrejection would be preferable. AR is associated ... [more ▼]The diagnosis procedure for kidney transplant recipients (KTR) with suspected acute rejection (AR) relies on needle biopsy. Noninvasive tests to predict nonrejection would be preferable. AR is associated with a recruitment of activated leukocytes into the transplant, which are characterized by a high metabolic activity and an increased uptake of glucose analog, Fluoro-deoxyglucose ( FDG). Thus, FDG-Positron emission tomography coupled with computed tomography (PET/CT) may help noninvasively distinguish nonrejection from AR. From January 2013 to February 2015, we prospectively performed 32 FDGPET/ CT in 31 adult KTR with suspected renal AR who underwent a biopsy. Biopsies were categorized as “normal”, “borderline”, “AR” or “others” according to Banff classification. PET/CT imaging was performed within 201 ± 18 minutes after i.v. administration of 3.2 ± 0.2 MBq/kg of FDG, before any modification of immunosuppression. The mean standard uptake values (SUV) of both upper and lower renal poles were measured, with no threshold activity. Biopsies were diagnosed as “normal”, “borderline”, “AR” or “others” in 8, 10, 8 and 6 (including 3 polyoma-BK nephropathies) cases. Mean SUV respectively reached 1.5 ± 0.2, 1.6 ± 0.3, 2.9 ± 0.8, 2.2 ± 1.2 in each category. Mean SUV of biopsy-proven AR was significantly higher than “normal” cases (p<0.01). No difference was found between “normal” vs. “borderline”, or between “AR” vs. “others” histopathology. Still, a positive correlation between mean SUV and acute composite (g+i+t+v+ptc) Banff score was found, with a coefficient of 0.70 (p<0.001). Sensitivity and specificity of FDG-PET/CT in detecting pathological biospies were respectively 92.3% and 36.8%, with a mean SUV threshold at 1.4. FDG-PET/CT imaging may help discriminate nonrejection, thereby avoiding unnecessary transplant biopsy in KTR with suspected AR. [less ▲]Detailed reference viewed: 22 (3 ULg) Intercalation of imidazolium end-functionalized polyphosphates between montmorillonite nanosheets towards flame-retardantCarion, Stéphan ; Lecomte, Philippe ; Thomassin, Jean-Michel et alPoster (2015, September 11)Among the additives used to impart flame-retardant properties to polymer materials, phosphorous additives and nanoclays are widely used. The aim of this work is to associate both additives to bring about ... [more ▼]Among the additives used to impart flame-retardant properties to polymer materials, phosphorous additives and nanoclays are widely used. The aim of this work is to associate both additives to bring about a synergetic effect for improving the flame-retardancy of the material (1). In a first step, the synthesis of an aliphatic polyphosphate end-capped by an imidazolium cation is reported. Secondly, this polymer is intercalated between montmorillonite nanoclays. The strategy used for the synthesis of the polyphosphate is based on the ring-opening polymerization of the corresponding cyclic phosphate by using 1-(11-hydroxy-undecyl)-3-methylimidazolium bromide as an initiator. This polymerization was catalyzed by DBU and a thiourea derivative (2). This polymer was characterized by a set of techniques (31P and 1H NMR, SEC, TGA, DSC). Finally, the cationic end-functionalized polymer was exchanged with sodium cations present in montmorillonite. The intercalation of the polyphosphate between the clay nanosheets was proved by X-Ray Diffraction (XRD) and thermogravimetric analysis (TGA). This last technique was also used to determine the influence of the intercalation on the thermal stability of the polyphosphate. [less ▲]Detailed reference viewed: 25 (5 ULg) Cobalt-mediated radical polymerization for the precision design of novel poly(ionic liquid) copolymers in aqueous mediaCordella, Daniela ; Kermagoret, Anthony; Debuigne, Antoine et alPoster (2015, September 11)Poly(ionic liquid)s (PILs) have emerged as a special class of polyelectrolyte materials, featuring tunable solubility, high ionic conductivity, and a broad range of glass transition temperatures. Due to ... [more ▼]Poly(ionic liquid)s (PILs) have emerged as a special class of polyelectrolyte materials, featuring tunable solubility, high ionic conductivity, and a broad range of glass transition temperatures. Due to their specific properties emanating from the ionic liquid (IL) units and their intrinsic polymeric nature, PILs find potential applications in various areas, such as analytical chemistry, biotechnology, gas separation, dispersants, solid ionic conductors for energy, catalysis, etc. In recent years, controlled radical polymerization (CRP) techniques have been applied to the synthesis of structurally well-defined PILs, with control attained over molar mass, dispersity, and end-group fidelity. In this poster, we will report on the implementation of cobalt-mediated radical polymerization (CMRP) technique for the precision synthesis of unprecedented PILs (co)polymers. We will discuss how an organocobalt complex can efficiently control the growth of vinyl imidazolium chains and lead to PILs with predicted molar masses and low polydispersities under mild experimental conditions, thus at low temperature and using water as a green polymerization medium. The huge potential of this system will be highlighted by describing the one-pot synthesis of all vinyl imidazolium-based block copolymers in aqueous media. This CMRP is unique for providing well-defined vinyl imidazolium based-copolymers for advanced PILs applications. [less ▲]Detailed reference viewed: 26 (3 ULg) Imitative Learning for Online Planning in MicrogridsAittahar, Samy ; François-Lavet, Vincent ; Lodeweyckx, Stefan et alin Proceedings of Data Analytics for Renewable Energy Integration 2015 (2015, September 11)This paper aims to design an algorithm dedicated to operational planning for microgrids in the challenging case where the scenarios of production and consumption are not known in advance. Using expert ... [more ▼]This paper aims to design an algorithm dedicated to operational planning for microgrids in the challenging case where the scenarios of production and consumption are not known in advance. Using expert knowledge obtained from solving a family of linear programs, we build a learning set for training a decision-making agent. The empirical performances in terms of Levelized Energy Cost (LEC) of the obtained agent are compared to the expert performances obtained in the case where the scenarios are known in advance. Preliminary results are promising. [less ▲]Detailed reference viewed: 37 (10 ULg) Tentativi di avvicinamento a Il figlio di Bakunìn (1991) di Sergio Atzeni (1952-1995)Curreri, Luciano Conference (2015, September 11)Detailed reference viewed: 46 (5 ULg) Green synthesis of polyphosphoesters, a promising class of bioinspired degradable materialsLecomte, Philippe ; Baeten, EvelienConference (2015, September 11)Detailed reference viewed: 14 (1 ULg) CHEMOKINE (CC-MOTIF) LIGAND 2 AS A PROGNOSTIC SERUM MARKER IN CANINE IDIOPATHIC PULMONARY FIBROSISRoels, Elodie ; Holopainen, S.; Teske, Erik et alPoster (2015, September 11)Detailed reference viewed: 19 (0 ULg) Novel organocobalt for the synthesis of functional polymersDemarteau, Jérémy ; Kermagoret, Anthony; Jérôme, Christine et alPoster (2015, September 11)Organocobalt(III) with acetylacetonate (acac) ligands is the most representative example of R-Co bearing a labile C-Co bond that can release alkyl radicals under mild experimental conditions without ... [more ▼]Organocobalt(III) with acetylacetonate (acac) ligands is the most representative example of R-Co bearing a labile C-Co bond that can release alkyl radicals under mild experimental conditions without requiring a photoactivation. The unique isolated R-Co is a short oligo(vinyl acetate) end-capped by Co(acac)2. The high lability of its C-Co bond combined to the unique capacity of Co(acac)2 to reversibly trap alkyl radicals make this R-Co unique for the precision design of unprecedented polymers by Cobalt-Mediated Radical Polymerization (CMRP). The growth of unstabilized and highly reactive growing radicals formed by the addition of R• to unconjugated vinyl monomers (vinyl esters, vinyl amides, vinyl imidazolium, vinyl chloride, etc;) is controlled by the reversible formation of a weak C-Co bond at the polymer chain end. The lack of alternatives to this R-Co, especially to the structure of the alkyl group, has however placed limitations on post-functionalizations of end-chains. Other functional variants that would enable attractive chain-end derivatizations are unfortunately not available. In this poster, we will address this important challenge by describing an innovative synthetic route towards the preparation of new functional R-Co(acac)2 that are sources of halomethyl radicals under mild experimental conditions. The efficiency of these novel organocobalt complexes for the precision synthesis of end-functional and telechelic polymers will be described. Also, the solubility of these complexes in water enables the facile production of end-functionalized water soluble poly(ionic liquid)s. Further derivatizations of the halomethyl group at the chain-end of polymers produced by this system will be demonstrated by click reaction, largely broadening the range of possible functional groups. Finally, besides numerous applications in macromolecular engineering, this unexplored family of R-Co presents a high potential in radical reactions in organic synthesis by the facile production of halomethyl radicals. [less ▲]Detailed reference viewed: 30 (3 ULg) Will Big Data Deliver its Promised Productivity Growth?Artige, Lionel Conference (2015, September 11)Detailed reference viewed: 27 (0 ULg) L'utilisation des insectes dans la pharmacopée de l'Égypte gréco-romaineMarganne, Marie-Hélène Conference (2015, September 11)Telles qu'on peut les déchiffrer dans les papyrus littéraires grecs retrouvés en Égypte (IV/IIIe siècles avant notre ère – VI/VIIe siècles de notre ère), les prescriptions médicales recourent-elles à des ... [more ▼]Telles qu'on peut les déchiffrer dans les papyrus littéraires grecs retrouvés en Égypte (IV/IIIe siècles avant notre ère – VI/VIIe siècles de notre ère), les prescriptions médicales recourent-elles à des insectes et, si tel est le cas, à quelle(s) variété(s), en raison de quelle(s) propriété(s) et pour quel(s) type(s) d'affections ? C'est à ces questions que l'on tentera de répondre, en complétant le témoignage des sources papyrologiques par celui des sources littéraires grecques et latines sur la pharmacopée de l'Égypte gréco-romaine. [less ▲]Detailed reference viewed: 21 (0 ULg) Predator cues and risky habitats affect foraging activity in salamandersMelotto, Andrea; Ficetola, Gentile Francesco; Denoël, Mathieu et alConference (2015, September 11)Detailed reference viewed: 10 (0 ULg) New efficient organocatalytic system for solvent-free chemical fixation of CO2 into epoxidesPanchireddy, Satyannarayana ; Gennen, Sandro ; Alves, Margot et alPoster (2015, September 11)Due to concerns about global warming combined with the decrease of fossil resources, the chemical transformation of carbon dioxide (CO2) into added-value products has gained interest in both academic and ... [more ▼]Due to concerns about global warming combined with the decrease of fossil resources, the chemical transformation of carbon dioxide (CO2) into added-value products has gained interest in both academic and industrial fields. To date, the chemical fixation of CO2 onto epoxides with the formation of cyclic carbonates (CC) is one of the most promising ways to valorise CO2 at an industrial scale. Indeed, CC are useful monomers for polycarbonate synthesis and they can react with primary amines to produce 2-hydroxyethylurethane. This reaction can be extrapolated to the synthesis of non-isocyanate polyurethanes (NIPUs) by a step growth polymerization between bifunctional CC and diamines. [less ▲]Detailed reference viewed: 46 (3 ULg) Ce que l'image fait à l'histoire. Le cas de la Madone des ombres (Fra Angelico) pour G. Didi-HubermanHagelstein, Maud Conference (2015, September 11)Detailed reference viewed: 35 (1 ULg) STANDARDIZED CHARACTERIZATION OF THORACIC HIGH-RESOLUTION COMPUTED TOMOGRAPHIC FINDINGS IN WEST HIGHLAND WHITE TERRIER WITH CANINE IDIOPATHIC PULMONARY FIBROSIS AND COMPARISON BETWEEN SEDATED AND ANESTHETIZED EXAMINATIONSRoels, Elodie ; Couvreur, T.; Soete, Caroline et alPoster (2015, September 11)Detailed reference viewed: 15 (1 ULg) Stabilizing high internal phase emulsion interfaces by tailor-made copolymers for tuning morphology and surface properties of porous polymersMathieu, Kevin ; Jérôme, Christine ; Debuigne, Antoine Poster (2015, September 11)Detailed reference viewed: 12 (2 ULg) Optimized focal and pupil plane masks for vortex coronagraphs on telescopes with obstructed aperturesRuane, Garreth; Absil, Olivier ; Huby, Elsa et alin Shaklan, Stuart (Ed.) Techniques and Instrumentation for Detection of Exoplanets VII (2015, September 11)We present methods for optimizing pupil and focal plane optical elements that improve the performance of vortex coronagraphs on telescopes with obstructed or segmented apertures. Phase-only and complex ... [more ▼]We present methods for optimizing pupil and focal plane optical elements that improve the performance of vortex coronagraphs on telescopes with obstructed or segmented apertures. Phase-only and complex masks are designed for the entrance pupil, focal plane, and the plane of the Lyot stop. Optimal masks are obtained using both analytical and numerical methods. The latter makes use of an iterative error reduction algorithm to calculate "correcting" optics that mitigate unwanted diffraction from aperture obstructions. We analyze the achieved performance in terms of starlight suppression, contrast, off-axis image quality, and chromatic dependence. Manufacturing considerations and sensitivity to aberrations are also discussed. This work provides a path to joint optimization of multiple coronagraph planes to maximize sensitivity to exoplanets and other faint companions. [less ▲]Detailed reference viewed: 11 (0 ULg) Numerical simulations on embedded solids : integration of CAD and eXtended Finite Element AnalysisDuboeuf, Frédéric ; Béchet, Eric Conference (2015, September 10)The aim of this communication is to propose a procedure in order to dissociate the geometric description of the field’s approximation within the extended finite element method (X-FEM) and with non ... [more ▼]The aim of this communication is to propose a procedure in order to dissociate the geometric description of the field’s approximation within the extended finite element method (X-FEM) and with non-matching meshes. Implicit and explicit approaches are combined in order to represent with accuracy all the CAD entities regardless of their dimension. The choice of appropriate tools such as Level Sets technique allows to describe evolving interfaces with great flexibility. The design of a dedicated P1 functional space is achieved by decimating the traces of standard finite element (FE) shape functions, thanks to a new algorithm, especially when the problem domain is embedded in a space of a higher dimension. An analysis of the approximation properties of the P1 FE trace spaces on hyper-surfaces is available in the literature and applied for solving PDEs on closed surfaces without boundary. Dirichlet boundary conditions are applied using a convenient choice of stable Lagrange multiplier space, according to a new generalized algorithm. That extends the existing solutions to every combination of the space domain and boundary dimensions. In terms of solvers, the introduction of double Lagrange multipliers can be used to recover the positive definiteness of the bilinear form. This approach allows to treat any embedding, i.e. 1, 2, or 3D problems embedded in 2 or 3D background meshes. The possibility of applying the methodology to beams is investigated, with a potential application to through-thickness reinforced composites in a mixed-dimensional modelling framework. [less ▲]Detailed reference viewed: 22 (3 ULg) 6. Protection intégrée des semis et des jeunes emblavuresHenriet, François; Chavalle, Sandrine ; Bataille, Charlotte et alin Bodson, Bernard; Watillon, Bernard (Eds.) Livre Blanc Céréales (2015, September 10)Detailed reference viewed: 21 (2 ULg) Newts skip aquatic life and forego reproduction in response to alien fish introductionWinandy, Laurane ; Darnet, Elodie; Denoël, Mathieu Conference (2015, September 10)Detailed reference viewed: 10 (0 ULg) 1. Actualités en ravageurs - 2. Variétés résistantes à la cécidomyie orange du blé : intérêt agronomique et méthode de caractérisationChavalle, Sandrine ; Jacquemin, Guillaume; De Proft, Michelin Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc Céréales (2015, September 10)Detailed reference viewed: 26 (2 ULg) Challenges for Scale-Up of Batch Phase SeparationPfennig, Andreas ; Becker, Karsten; Bach, S. et alConference (2015, September 10)Detailed reference viewed: 23 (1 ULg) 1. Actualités en ravageurs - 1. Saison 2015 : attaque et dégâts de cécidomyie orange du bléHautier, Louis; Chavalle, Sandrine ; De Proft, Michelin Bodson, Bernard; Watillon, Bernard (Eds.) Livre Blanc Céréales (2015, September 10)Detailed reference viewed: 26 (2 ULg) Osteopontin as a new target in glioblastoma progression and resistance to radiotherapyHenry, Aurélie ; Bellahcene, Akeila ; Castronovo, Vincenzo et alConference (2015, September 10)Glioblastoma (GBM) is the most aggressive and common solid human brain tumor. Because of GBM heterogeneity, location and aggressiveness, none of the available treatment is curative. These treatments ... [more ▼]Glioblastoma (GBM) is the most aggressive and common solid human brain tumor. Because of GBM heterogeneity, location and aggressiveness, none of the available treatment is curative. These treatments include maximal surgical resection, radiotherapy and concomitant or adjuvant chemotherapy with Temozolomide (TMZ). However, the prognosis of adult patients with GBM remains poor and the survival outcome after treatment does not exceed 15 months. Glioblastoma-composing cells have developed many strategies to counteract these current therapies. Among the wide hallmarks acquired to survive, osteopontin (OPN) ranks correlates with lower overall and disease-free/relapse-free survival in all tumors combined, as well in brain cancer. OPN expression is largely considered as a molecular cancer marker associated with poor prognosis for patients with cancer. Our preliminary works (Lamour V and Henry A, IJC 2015) have demonstrated the role of OPN in the tumorigenicity of glioblastoma cells and its importance in the maintenance of the stem charachters. Within the continuance of this work, our recent studies focused on the potential role of OPN in the resistance of glioblastoma cells to radiotherapy and its implication in the initiation of Double Strand Breaks (DSBs) repair mechanism. In this context, U251-MG and U87-MG cells were used to assess the role of OPN in the initiation of the DSBs repair mechanism after an exposure to gamma-irradiation (γ–IR). The transient transfection of both cell lines with siRNA directed against OPN shown a lower induction of γ–H2AX compared to control (irrelevant siRNA). The survival of U251-OPN depleted cells was also affected after an exposure to γ–IR (based on clonogenic assays). However, the sole depletion of OPN in U87 cells affected their survival (independently of the γ–IR). To prove that the secreted form of OPN is necessary to survive after γ–IR, conditionned medium of U87-shSCR clones (rich in OPN) was used to treat U87shOPN clones before an exposure to γ–IR. By immunofluorescence, we observed that the γ–H2AX staining was higher in U87 shOPN clones than when treated with their own conditionned medium (poor in OPN). Currently, we are investigating the in vivo implication of OPN in the initiation of DSBs repair mechanism after an exposure of mice to γ–IR (whole brain exposure). For this purpose, IPTG-inducible U87 shRNA clones (SCR and OPN) have been generated and validated for an orthotopic xenograft model in NOD-SCID mice. The survival after a radiotherapy of 10 Gy (2Gy per day for 5 days) will be assessed in OPN-positive and –negative tumor-bearing mice. Taken together, these datas suggest that OPN could represent an important pronostic factor for patient response to radiotherapy in the context of GBM. [less ▲]Detailed reference viewed: 48 (17 ULg) Degradation of p-nitrophenol and bacteria with TiO2 xerogels sensitized in situ with tetra(4-carboxyphenyl)porphyrinsTasseroul, Ludivine ; Lambert, Stéphanie ; Eskenazi, David et alPoster (2015, September 10)Heterogeneous photocatalysis is widely studied for environmental applications as oxidative processes can completely destroy organic pollutants such as alkanes, pesticides, dyes, etc. and microorganisms ... [more ▼]Heterogeneous photocatalysis is widely studied for environmental applications as oxidative processes can completely destroy organic pollutants such as alkanes, pesticides, dyes, etc. and microorganisms. The most used photocatalyst is the commercial TiO2 Degussa P25, which is composed of 80% anatase and 20% rutile and which is active when TiO2 is exposed to UV light ( < 380 nm). Recently, several studies have been performed to extend the light absorption range of TiO2 towards the visible range. In this study, TiO2-based materials doped with porphyrins, a widely used dye for the photosensibilization of TiO2, have been prepared using a sol-gel process. To stabilize the TiO2-dye interactions, free metal tetra(4-carboxyphenyl)porphyrin and nickel tetra(4-carboxyphenyl)porphyrin were introduced in situ into the TiO2 matrix during the sol-gel process rather than by grafting. Samples were thoroughly characterized by TEM, X-ray diffraction, FT-IR, DR-UV/Vis and their texture has been examined by nitrogen adsorption–desorption at 77 K. The photocatalytic activity for the degradation of p-nitrophenol and Escherichia coli and Lactobacillus rhamnosus bacteria cells in aqueous medium, under halogen lamp light have been evaluated in relation with the physico-chemical modifications induced by the doping. The low temperature vacuum drying protocol (150°C) used in the present study enabled to obtain porphyrin doped TiO2 xerogels with a high specific surface area, and containing nanoparticles composed of amorphous- and anatase-TiO2. Diffuse reflectance spectroscopy attest the presence of TCPPH2 and TCPPNi within the TiO2 matrix. In a first step, the photoactivity of the xerogels is tested for p-nitrophenol degradation. Results show that crystallinity and nature and concentration of porphyrin introduced in situ have major impact on the degradation performances. In a second step, the best xerogel for p-nitrophenol degradation has been used to degrade bacteria. This xerogel degrades E. coli and L. rhamnosus bacteria cells in less than 48 and 24 h respectively. The photocatalytic degradation of a pollutant is thus correlated to the degradation of bacteria since a xerogel doped with the TCPPNi degrades both p-nitrophenol, E. coli and L. rhamnosus. [less ▲]Detailed reference viewed: 49 (6 ULg) Consequences of fish introduction and extirpation on populations of metamorphic and paedomorphic newtsDenoël, Mathieu ; Winandy, Laurane Conference (2015, September 10)Detailed reference viewed: 10 (0 ULg) Reevaluating IUCN Red List assesment on European amphibiansCrnobrnja-Isailović, Jelka; Cogalniceanu, Dan; Denoël, Mathieu et alConference (2015, September 09)Detailed reference viewed: 13 (0 ULg) Characterization of the magnetic properties of a continuously coated YBCO coated conductor cylinder in persistent current modeWera, Laurent ; Fagnard, Jean-François ; Hogan, Kevin et alPoster (2015, September 09)YBCO coated conductors are good candidates for magnetic shielding applications because of (i) their high current density and (ii) their lower weight compared to magnetic shields made of bulk HTS materials ... [more ▼]YBCO coated conductors are good candidates for magnetic shielding applications because of (i) their high current density and (ii) their lower weight compared to magnetic shields made of bulk HTS materials. In particular, an efficient superconducting magnetic shield can be built as an assembly of milled YBCO 2G coated conductor tape sections, or, as in this case, a continuously coated cylinder. The purpose of the present work is to characterize experimentally the DC magnetic properties of a continuous band of YBCO film (about 1 cm width) deposited around a hastelloy cylinder of 6.4 cm in diameter. In particular, we characterize the distribution and the time dependence of the trapped field inside the cylinder due to persistent current loops. We also investigate the magnetic shielding properties at several sweep rates when the applied magnetic field is parallel to the main axis of the cylinder. All measurements are carried out at 77 K. The measurement of the trapped field of the cylinder gives evidence that a persistent current of about 80 A can be induced in the YBCO band. Magnetic shielding measurements show that, thanks to the persistent current flowing in the band, the cylinder is able to attenuate by a factor of 2 the applied magnetic field. These results open interesting perspectives for a further development of magnetic shields made of coated conductor cylinders. We investigate how the shielding performances could be further improved by increasing the number of layers and by increasing the height of the cylinder. The results are compared to a multilayer coated conductor cylinder with joints and to persistent current loops obtained with milled coated conductor tape sections. [less ▲]Detailed reference viewed: 28 (7 ULg) Magnetic shielding properties of a bulk Bi-2223 superconducting hollow cylinder subjected to the magnetic stray field of a nearby magnetic sourceHogan, Kevin ; Wera, Laurent ; Fagnard, Jean-François et alPoster (2015, September 09)Superconducting materials act as efficient magnetic shields thanks to their intrinsic magnetic properties. At low frequencies, their efficiency even surpasses that of conventional ferromagnetic materials ... [more ▼]Superconducting materials act as efficient magnetic shields thanks to their intrinsic magnetic properties. At low frequencies, their efficiency even surpasses that of conventional ferromagnetic materials. Therefore, they can be very useful for many applications which require low or very low magnetic field in intense quasi-static magnetic environments. The vast majority of studies on superconducting screens has been conducted in homogeneous magnetic field configurations. Few works have been done concerning inhomogeneous magnetic field configurations while those are representative of practical situations. Moreover, those configurations are non-trivial given the magnetic hysteretic behaviour of type-II superconductors. In the present work, we aim at investigating and understanding the shielding properties of a superconducting hollow cylinder made of Bi-2223 subjected to the magnetic stray field of a coil placed in the vicinity. All experiments are carried out at 77K. [less ▲]Detailed reference viewed: 41 (10 ULg) What do they mean? Listening to babies communicating in the daily setting in ECEC servicePirard, Florence ; Legrand, Anne; Michel, Aurore Conference (2015, September 09)The main aim of the study was to gain understanding of how babies communicate in ECEC services. Previous literature indicates that babies can interact and communicate precociously, not only with adults ... [more ▼]The main aim of the study was to gain understanding of how babies communicate in ECEC services. Previous literature indicates that babies can interact and communicate precociously, not only with adults (Stern, 2005; Threvarten, 2011), but also with other children (Tomasello et al., 2005). The ECEC service can be considered as a setting where interaction and communication between peers can be sustained by practitioners who observe them, document what happens, analyse together the educational condition to guarantee and regulate their action (Stambak et al., 1983). The study involved qualitative and action research initiated by Cresas and IEDPE (self-regulating participatory assessment, Ballion et al., 1988), combined with an analysis of activity approach focused on contextualised process. An action researcher has gathered practitioners, trainers and researchers from France, Spain, Croatia, Italy and Belgium to analyse educational daily practice in ECEC services and their effect on communication between peers. Videos have been used to document and analyse the practice (EADAP, 2011). The ethical considerations taken in this study involved collaborative perspectives that give an active place to all participants (researchers, trainers, practitioners? parents and children). Informed consent and authorization for using video in the research are guaranteed. Participants identify and document communication processes between very young children observed in natural setting (ECEC services). These processes are characterised by several aspects: duration, emotional expression and meaningful linking of observed behaviours between babies. A shared meaning from the video documentation can be co-constructed like some narrative stories. Participants consider the activity of babies as meaningful stories that they should understand and sustain with interest. We discuss implications for professionalisation of the workforce (initial training and professional development). [less ▲]Detailed reference viewed: 18 (4 ULg) Thymic and immunological phenotype of growth hormone releasing hormone (GHRH)-deficient mice in basal conditionsBodart, Gwennaëlle ; Farhat, Khalil ; CHARLET-RENARD, Jeanne de Chantal et alPoster (2015, September 09)Detailed reference viewed: 26 (3 ULg) Attractiveness and efficiency of a downstream migration bypass for Atlantic Salmon (Salmo salar) smolts in a Belgian medium size riverOvidio, Michaël ; Dierckx, Arnaud ; Grandry, Louise et alConference (2015, September 09)Detailed reference viewed: 27 (1 ULg) Un musée du Moyen Age à NamurGeorge, Philippe Conference (2015, September 09)Detailed reference viewed: 14 (0 ULg) Study of the impact of school average ability on career expectationsDupont, Virginie Conference (2015, September 09)Detailed reference viewed: 19 (2 ULg) L’apprentissage de résolution de problèmes complexes (ARPC) : un dispositif d’entrainement au travail interdisciplinaireLeclercq, Anne-Lise ; Maillart, Christelle Conference (2015, September 08)Detailed reference viewed: 45 (6 ULg) Premières notes pour l'ethnographie d'un projet européen en situation embarquéeThoreau, François Conference (2015, September 08)Detailed reference viewed: 12 (0 ULg) OPTIMIZATION OF A FULLY AUTOMATED ELECTROPHORETICALLY MEDIATED MICROANALYSIS SYSTEM FOR CYP1A1 ACTIVITY MONITORINGFarcas, Elena ; Servais, Anne-Catherine ; Lamalle, Caroline et alPoster (2015, September 08)Detailed reference viewed: 15 (2 ULg) Iconic virtues of diagrams. Peirce and ampliative reasoningLeclercq, Bruno Conference (2015, September 08)In his Critic of pure reason, Immanuel Kant notoriously claimed that, being grounded on the forms of sense intuition, arithmetical and geometrical propositions are both synthetic (i.e. informative) and a ... [more ▼]In his Critic of pure reason, Immanuel Kant notoriously claimed that, being grounded on the forms of sense intuition, arithmetical and geometrical propositions are both synthetic (i.e. informative) and a priori. Bernard Bolzano, followed in this by the logicist movement (from Gottlob Frege to Rudolf Carnap), answered that the generality and necessity of mathematical propositions and proofs can only be grounded on conceptual analysis. Even though, just like Frege, he is one of the fathers of formal logic, Charles Sanders Peirce provides some semiotic reasons to think that Kant was right: diagrams do convey general meanings and provide some knowledge which is necessary yet non-trivial. Unlike logical analysis, visual presentation of concepts in schemas or diagrams helps to explore concepts by stressing some of their “side” features in such a way that new knowledge is gained: « diagrams evolve what was involved » (CP4/86). This is why, according to Kant’s notion of intuitive construction, mathematical inferences are not merely deductive but are inventive and ampliative. My talk aims at identifying some iconic virtues of diagrams which, according to Peirce, explain their epistemic productivity. A first one lies in the “formal” nature of icons, which allows them to express syntactic relations between descriptive (symbols) and demonstrative (indices) components of structured information. On this respect, even algebraic and ideographic expressions are icons exhibiting a general form – a “rheme” – in which places for indices are filled with variables “x” and “y” meaning “any individual”. For this reason, even though they are singular, diagrams are “abstractions” in the sense that they represent relations rather than their terms. Only with this in prospect can a second, and more studied, feature of diagrams matter, namely their two-dimensionality, which helps to exhibit complex relations that cannot be seen on linear linguistic expressions. Finally, a third feature of diagrams lies in their imaginary rather than referential character. Icons connote without denoting, and therefore they can be informational without this information being limited to singular individuals. Furthermore, this non referential character of icons is what makes them open to virtual exploratory manipulations that allow to consider and investigate possibilities which in turn inform us on not obvious properties of the presently visible configuration. [less ▲]Detailed reference viewed: 28 (0 ULg) A lung-resident Ly6c+ monocyte proliferates to give rise to immunosuppressive lung macrophagesSabatel, Catherine ; Radermecker, Coraline ; Fievez, Laurence et alPoster (2015, September 08)Detailed reference viewed: 11 (3 ULg) Assessing electrical resistivity tomography for hydrofacies detection using a sensitivity dependent probabilistic methodologyHermans, Thomas ; Irving, Jamesin EarthDoc - Near Surface Geosciences 2015 (2015, September 08)Alluvial aquifers are generally composed of several facies with complex architectures and interconnections depending on the fluvial system. In this context, electrical resistivity tomography (ERT) may ... [more ▼]Alluvial aquifers are generally composed of several facies with complex architectures and interconnections depending on the fluvial system. In this context, electrical resistivity tomography (ERT) may provide important information on the spatial distribution of hydrogeological parameters. However, ERT inversion introduces some bias in the resulting resistivity distribution due to regularization and resolution issues. In this study, we refine ERT inversions by incorporating prior information in order to improve the identification of facies through a probabilistic relationship derived from collocated measurements. We then analyze with synthetic cases the effect of spatially varying sensitivity on the probabilistic relationship. As expected, when sensitivity decreases, the distributions of resistivity for the different facies tend to be superimposed. A mean distribution thus overestimates the ability of surface ERT to discriminate hydrofacies in depth. [less ▲]Detailed reference viewed: 48 (4 ULg) A wavelet-based mode decomposition compared to the EMDDeliège, Adrien ; Nicolay, Samuel Poster (2015, September 08)We introduce a new method based on wavelets for decomposing a signal into quasi-periodic oscillating components with smooth time-varying amplitudes. This method is inspired by both the "classic" wavelet ... [more ▼]We introduce a new method based on wavelets for decomposing a signal into quasi-periodic oscillating components with smooth time-varying amplitudes. This method is inspired by both the "classic" wavelet-based decomposition and the empirical mode decomposition (EMD). We compare the efficiency of the method with the well-established EMD on toys examples and the ENSO climate index. [less ▲]Detailed reference viewed: 37 (3 ULg) Year Round Survey of Ocean-Sea Ice-Air Exchanges – the YROSIAE surveyDelille, Bruno ; Van Der Linden, Fanny ; Fripiat, François et alPoster (2015, September 08)YROSIAE survey aimed to carry out a year-round integrated survey of land-fast sea ice focusing on the study of sea ice physics and biogeochemistry in order to a) better understand and budget exchanges of ... [more ▼]YROSIAE survey aimed to carry out a year-round integrated survey of land-fast sea ice focusing on the study of sea ice physics and biogeochemistry in order to a) better understand and budget exchanges of energy and matter across the ocean-sea ice-atmosphere interfaces during sea ice growth and decay and b) quantify their potential impact on fluxes of climate gases (CO2, DMS, CH4, N2O) to the atmosphere and on carbon and macro- nutrients and micro-nutrients export to the ocean. We will present the aims, overall approach and integrated sampling strategy of the YROSIAE survey. We will also discuss CO2 and N2O dynamics within sea ice. It appears that sea ice acts as a source of CO2 for the atmosphere in winter, counterbalancing spring sink. In addition, mineralization in spring appears to alleviate spring CO2 uptake. Intense nitrification in sea ice in spring fosters emission of N2O at the air-ice interface. [less ▲]Detailed reference viewed: 11 (2 ULg) Stealth Liposome and Drug-In-Cyclodextrin-In-Liposome Formulations Entrapping Apigenin as Novel Therapy for GlioblastomaKarim, Reatul ; Palazzo, Claudio ; Dubois, Nadège et alPoster (2015, September 08)Detailed reference viewed: 26 (2 ULg)