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See detailNew excavation in the Ikh Tulberiin Gol, Mongolia: the Tolbor 16 Upper Paleolithic site
Zwyns, N.; Gunshinsuren, B.; Gladyshev, S.A. et al

Conference (2012)

Detailed reference viewed: 51 (0 ULg)
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See detailPrognostic Importance of Exercise Brain Natriuretic Peptide in Asymptomatic Degenerative Mitral Regurgitation.
Magne, Julien ULg; Mahjoub, H; Pibarot, P et al

Conference (2012)

Detailed reference viewed: 7 (1 ULg)
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See detailCircadian and homeostatic modulation of cognition-related cerebral activity in humans
Schmidt, Christina ULg; Maire, Micheline; Reichert, Carolin et al

Conference (2012)

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See detailAnisotropic hydromechancial modelling of HGA field-scale experiment in Opalinus Clay
Levasseur, Séverine ULg; Collin, Frédéric ULg; François, Bertrand et al

Conference (2012)

Detailed reference viewed: 15 (2 ULg)
See detailQuestions à Cécile Laborde
Delruelle, Edouard ULg

Conference (2012)

Detailed reference viewed: 6 (0 ULg)
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See detailInterference Fragmentation Functions and Transverse Spin Studies.
Courtoy, Aurore ULg; Bacchetta, Alessandro; Radici, Marco

Conference (2012)

We report on the extraction of dihadron fragmentation functions (DiFF) from the semi- inclusive production of two hadron pairs in back-to-back jets in e+e− annihilation. A nonzero asymmetry in the ... [more ▼]

We report on the extraction of dihadron fragmentation functions (DiFF) from the semi- inclusive production of two hadron pairs in back-to-back jets in e+e− annihilation. A nonzero asymmetry in the correlation of azimuthal orientations of opposite π+π− pairs is related to the transverse polarization of fragmenting quarks through a significant polarized DiFF. A combined analysis of this asymmetry and the spin asymmetry in the SIDIS process ep↑ → e′(π+π−)X has led to the first extraction of the u and d-flavor transversity parton distribution function in the framework of collinear factorization. [less ▲]

Detailed reference viewed: 21 (6 ULg)
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See detailSelf-appraisal and medial prefrontal activation in early stage Alzheimer’s disease.
Genon, Sarah ULg; Collette, Fabienne ULg; Angel, Lucie et al

Conference (2012)

Detailed reference viewed: 19 (3 ULg)
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See detailBacillus subtilis: biocontrol and growth promotion
Ongena, Marc ULg

Conference (2012)

Detailed reference viewed: 30 (1 ULg)
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See detailHow does the visuo-spatial deficit impact basic numerical processing in Williams syndrome? The question of domain specificity
Rousselle, Laurence ULg; noel, Marie-Pascale

Conference (2012)

It has been suggested that mathematics learning disabilities, including those of genetic origin, result from a basic impairment of quantitative representations. In Williams syndrome in particular, recent ... [more ▼]

It has been suggested that mathematics learning disabilities, including those of genetic origin, result from a basic impairment of quantitative representations. In Williams syndrome in particular, recent studies report a specific deficit in tasks requiring symbolic and non symbolic numerical magnitude processing (Krajcsi et al., 2009 ; O’Hearn & Landau, 2007; Paterson et al., 2006). However, to our knowledge, the integrity of non numerical quantitative processing has never been investigated. Moreover, in the visual modality, it is difficult to disentangle the influence of the massive visuo-spatial impairment, which is a main characteristic of the cognitive phenotype of Williams syndrome, from the numerical magnitude processing deficit. Therefore, numerical and non numerical acuity were assessed in a group of patients with Williams syndrome using tasks with different visuo-spatial processing requirements. To assess the processing of non numerical continuous quantities, participants were asked to compare the length of two sticks (spatial dimension) vs. the duration of two sounds (temporal dimension). Their ability to process non-symbolic numerical magnitudes was explored in tasks requiring the comparison of two arrays of elements (spatial arrangement) versus two sequences of dots flashed in a single location (no spatial processing). Finally, their access to symbolic number meaning was assessed through the numerical comparison of two Arabic numbers vs two Spoken verbal numerals. In each task, the ratio between the quantities was manipulated in order to measure the entire psychophysic curve and to measure the acuity of their numerical and non numerical magnitude representations in non-symbolic tasks. [less ▲]

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See detailIs bad group climate between girls a risky factor of aggression?
Mathys, Cécile ULg; Lanctôt, Nadine

Conference (2012)

Detailed reference viewed: 13 (1 ULg)
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See detailBiosurfactants as biopesticides: screening, mode of action and bioprocess development.
Coutte, F.; Krier, F.; Leclere, V. et al

Conference (2012)

Detailed reference viewed: 13 (1 ULg)
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See detailDer Einfluss einer genetischen Variation der Adenosin Desaminase auf die Anfälligkeit für Schlafdruck ist tageszeitabhängig
Reichert, Carolin; Maire, Micheline; Gabel, Virginie et al

Conference (2012)

Detailed reference viewed: 15 (0 ULg)
Peer Reviewed
See detailOutcome prediction in asymptomatic degenerative MR: the usefulness of exercise BNP.
Magne, Julien ULg; Mahjoub, H; Pibarot, P et al

Conference (2012)

Detailed reference viewed: 4 (0 ULg)
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See detailThe 4m International Liquid Mirror Telescope project
Finet, François ULg

Conference (2012)

Detailed reference viewed: 9 (3 ULg)
See detailUne approche participative des interactions entre les hommes, femmes et la biodiversité de la forêt tropicale dans la région du lac Tumba, RDC
Halleux, C.; Dendoncker, N.; Huynen, Marie-Claude ULg et al

Conference (2012)

L'objectif du projet BIOSERF est d'évaluer la durabilité d'un écosystème de forêt tropicale humide dans l'Ouest de la République démocratique du Congo sous des pressions démographiques, sociétales et ... [more ▼]

L'objectif du projet BIOSERF est d'évaluer la durabilité d'un écosystème de forêt tropicale humide dans l'Ouest de la République démocratique du Congo sous des pressions démographiques, sociétales et climatiques. Le projet se concentre sur les interactions entre la flore, la faune et la population humaine locale pour comprendre les processus modifiant la biodiversité et la disponibilité en services écosystémiques dans des zones tropicales humides. En collaboration étroite avec une ONG locale, il utilisera un modèle de végétation dynamique (CARAIB) qui sera associé à un modèle multi-agents, afin d'analyser l'utilisation de différents services écosystémiques comme par exemple la production de plantes médicinales, de bois et d'autres produits forestiers, ou de services liés à la création de réserves naturelles. Le modèle de végétation sera adapté pour prendre en compte les processus de régénération de plusieurs espèces de plantes, sélectionnées pour leur usage par les communautés humaines locales. Pour ce faire, une sélection de 5 espèces d'arbres utilisées fréquemment ou traditionnellement sera effectuée basée sur les résultats d'une enquête sociologique. Une étude combinée des communautés de disperseurs de graines permettra de prendre en compte leur rôle dans la régénération de la forêt. Le modèle multi-agents, quant à lui, devrait voir le jour lors d'un processus de modélisation d'accompagnement. Toutes les hypothèses de base de la modélisation peuvent être remises en cause durant le processus, au contact de la réalité du terrain. Cette méthode devrait permettre de mettre en débat les incertitudes liées à la notion de service écosystémique. A travers une approche post-normale, cette démarche de modélisation a pour vocation de faire dialoguer scientifiques, citoyens et décideurs et ceci afin d'améliorer la qualité du processus de prise de décision collective. La conception de différents scénarios permettra d'explorer différentes pistes de futurs possibles et/ou désirables. [less ▲]

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See detailEinzeltropfenuntersuchungen wässriger Zwei-Phasen-Systeme
Schmidt, M; Pfennig, Andreas ULg

Conference (2012)

Detailed reference viewed: 4 (0 ULg)
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See detailBelgian Magdalenes. History of an aborted scandal?
Dumortier, Els; François, Aurore ULg

Conference (2012)

The analysis of cases of several Belgian juvenile courts (Antwerp, Brussels, Namur, Arlon) revealed questionable practices within some establishments for young delinquents. One institution in particular ... [more ▼]

The analysis of cases of several Belgian juvenile courts (Antwerp, Brussels, Namur, Arlon) revealed questionable practices within some establishments for young delinquents. One institution in particular (Refuge Sainte Madeleine, Brussels), specialized in the rehabilitation of delinquent (and often pregnant) girls, developed suspicious methods of treatment. Indications of dysfunction in this private institution are numerous, and present a lot of similarities with practices observed in Irish Magdalene Asylums: teenage girls employed in a laundry run by a religious congregation, unexplained « disappearances » of the children born to delinquent girls, very high death rates, complaints from minors themselves and from their families regarding forms of negligence and even abuse. This local example leads us to question the practices of the Belgian protection system, and more specifically, the ‘pedogical approach’ in Magdalena covents. How to describe and explain the ‘pedagogical approach’ implemented within these institutions? What is the daily life of the institutionalized girls taking into account their living conditions and implemented discipline? Who worked in these private institutions? Were they trained in modern techniques of rehabilitation, and if so, what principles and applications were associated with these techniques? What is the influence of the Belgian separation between public and private sector with the child protection system? This case also invites us to examine the tension between official discourse and practice and raises questions on gendered reactions within the Belgian system. [less ▲]

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See detailAutomated detection of magnetospheric modes to investigate solar wind-magnetosphere coupling
Milan, S. E.; Imber, S. M.; Coxon, J. et al

Conference (2012)

The magnetosphere is known to respond to solar wind driving by displaying a variety of behaviours known as magnetospheric modes, including the substorm cycle, sawtooth intervals, and steady magnetospheric ... [more ▼]

The magnetosphere is known to respond to solar wind driving by displaying a variety of behaviours known as magnetospheric modes, including the substorm cycle, sawtooth intervals, and steady magnetospheric convection. Other behaviour includes geomagnetic storms and periods of relative magnetospheric quiescence associated with northward interplanetary magnetic field. There have been many studies of the changes in magnetospheric open flux content during different modes to investigate the role of magnetic reconnection at the magnetopause and in the magnetotail in determining the magnetospheric response. In this study we attempt an automated recognition of different modes by their characteristic signatures in geomagnetic indices and other magnetospheric state parameters, including open flux. This allows us to investigate the interplanetary conditions that give rise to different behaviours. [less ▲]

Detailed reference viewed: 9 (1 ULg)
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See detailNew data from an old site: Neandertals at Goyet (Belgium) and their mortuary behavior
Rougier; Crevecoeur; Beauval et al

Conference (2012)

Detailed reference viewed: 43 (4 ULg)
See detailFigures du travailleur immigré dans l'Europe néolibérale
Delruelle, Edouard ULg

Conference (2012)

Detailed reference viewed: 9 (0 ULg)
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See detailExperimental Results of Hybrid and Refractive Achromatic Doublets Made of PC and PMMA
Languy, Fabian ULg; Lenaerts, Cedric ULg; Loicq, Jerôme ULg et al

Conference (2012)

To combine achromatic system with cost-effective technology, we propose the use or hybride (refractive/diffractive) and refractive doublets Fresnel lenses. These two technologies have been compared ... [more ▼]

To combine achromatic system with cost-effective technology, we propose the use or hybride (refractive/diffractive) and refractive doublets Fresnel lenses. These two technologies have been compared experimentally from an optical point of view [less ▲]

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See detailImpairment of assets (IAS 36), a consistent application, to what extent?
Yammine, Mira ULg

Conference (2012)

The objective of this paper is to determine whether the application of impairment of assets -IAS 36- is consistent among companies and countries. The study covers 302 companies in 16 countries which ... [more ▼]

The objective of this paper is to determine whether the application of impairment of assets -IAS 36- is consistent among companies and countries. The study covers 302 companies in 16 countries which mandate the application of IFRS for listed and consolidated companies. A descriptive analysis was performed on information obtained from financial statements for the reporting year 2008. This same information was used for linear and logistic regressions that were conducted on a number of variables that are determined from the literature to have an impact on the impairment recognition and magnitude. Some of these variables such as return, market to book ratio and leverage were found to have an impact on the impairment decision and magnitude. The impact of these variables was different whether we consider all countries pooled together or whether we put European and Non-European countries in separate groups. If we go further and treat each country individually, when enough companies are available, we notice that the impact of these variables still is different. In addition, the study showed differences in percentage of non-explained variables embedded in the residuals obtained from the regressions performed on individual and grouped countries. These differences are an indication of the presence of factors that affect the consistent application of IFRS. Some of these factors are difference in interpretation, influence of domestic accounting standards, culture and enforcement bodies. [less ▲]

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See detailLes corrélats neuronaux de la Conscience
Thibaut, Aurore ULg

Conference (2012)

Detailed reference viewed: 14 (1 ULg)
See detailL'esthétique de Husserl. Présentation d'une table ronde
Steinmetz, Rudy ULg

Conference (2012)

Detailed reference viewed: 47 (5 ULg)
See detailUpper Paleolithic of the Ikh Tulberin Gol (Northern Mongolia): new excavation at the Tolbor 16 site
Zwyns, N.; Gladyshev, S.A.; Gunshinsuren, B. et al

Conference (2012)

Detailed reference viewed: 49 (0 ULg)
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See detailCharacteristics Of Participants To 'Start To Run' Programme. Comparison Between Maintenance And Drop Out Groups
Cloes, Marc ULg; Pétré, Benoît ULg

Conference (2012)

BACKGROUND. ‘Start to run’ is a 10 weeks programme designed to people who want to resume physical activity. AIM. This study aimed to identify initial characteristics differing among people who continue to ... [more ▼]

BACKGROUND. ‘Start to run’ is a 10 weeks programme designed to people who want to resume physical activity. AIM. This study aimed to identify initial characteristics differing among people who continue to run and those who stop. METHODS. 229 subjects attending to the first lesson (W0) of the autumn session organized in 20 communities of Wallonia (French speaking part of Belgium) fulfilled a questionnaire aiming to identify their characteristics. At W10, 180 of them answered to another questionnaire (68.5% of them achieved the programme). 12 weeks after the end of the latter (W22), 54 subjects who participated to the previous step and achieved the programme answered to a third questionnaire (71.1% were still running). FINDINGS. Few differences (p ≤ .05) were identified. At W10, MG subjects started with a lower BMI, had a better perception of their economical situation, a higher confidence to run during 10 weeks, a better perception of their health status, a lower consumption of alcohol. On the other hand, it was surprising to notice that they had lower perception of the neighbourhood’s safety, representation of physical activity’s effects on health and about its advantages. At W22, MG comprised more women. Subjects of this group had a higher consumption of vegetables and tried to decrease their fat consumption in the last 2 years. They considered themselves as physically active and motivated by expectations of others, perceived a higher family and children support and saw running as reassuring and rewarding. Nevertheless, they felt to meet more stray dogs in their environment. Most of the differences correspond to the literature. Moreover, among the subjects in the DG, almost 40% were injured meaning that they would have been active without this situation. DISCUSSION. Effective physical activity resumption seems to be linked to a general health climate without overestimation of one’s competences and expectations. Recommendations are proposed for sport instructors. [less ▲]

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See detailLes Spécificités de la Gestion d'une PME de l’Industrie du Luxe: Vers une Typologie des Facteurs Clés de Succès
Riguelle, France ULg; Van Caillie, Didier ULg

Conference (2012)

The paper proposes an introduction to the synthetic review of the key success factors (KSF) for an SME of the luxury industry through a critical review of the existing literature regarding the performance ... [more ▼]

The paper proposes an introduction to the synthetic review of the key success factors (KSF) for an SME of the luxury industry through a critical review of the existing literature regarding the performance management of companies of the luxury industry. Two different typologies are presented: the first one refers to the KSF for an SME in overall and the second one presents the identified KSF for the companies in the luxury industry. [less ▲]

Detailed reference viewed: 205 (12 ULg)
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See detailLes neurosciences posent-elles au droit des questions nouvelles?
Sibony, Anne-Lise ULg

Conference (2012)

Detailed reference viewed: 33 (0 ULg)
See detailThéorie de la transition
Stassart, Pierre M ULg

Conference (2012)

Detailed reference viewed: 53 (6 ULg)
See detailStructure géométrique de l’ADN
Thiry, Marc ULg

Conference (2012)

L’ADN rassemble les informations nécessaires à tout organisme vivant pour survivre et se reproduire. Ce grimoire vient de ses ancêtres et sera transmis à ses descendants sous une forme légèrement remaniée ... [more ▼]

L’ADN rassemble les informations nécessaires à tout organisme vivant pour survivre et se reproduire. Ce grimoire vient de ses ancêtres et sera transmis à ses descendants sous une forme légèrement remaniée. La géométrie intervient à plusieurs stades de ce processus. [less ▲]

Detailed reference viewed: 278 (60 ULg)
See detailPractical application of Reason's model in a department of radiotherapy
DELGAUDINE, Marie ULg; LENAERTS, Eric ULg; RENARD, A et al

Conference (2012)

Detailed reference viewed: 38 (14 ULg)
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See detailTowards a “concurrent design facility (CDF)” for nanosatellites: a back-of-the-envelope calculation of the overall energy budget of OUFTI-1
Denis, Amandine ULg; Crosset, Nicolas ULg; Pisane, Jonathan ULg et al

Conference (2012)

We give a very compact account of the overall energy budget of the OUFTI-1 nanosatellite, thereby providing a useful guide for future designs, as well as an explanation of why a nanosatellite can ... [more ▼]

We give a very compact account of the overall energy budget of the OUFTI-1 nanosatellite, thereby providing a useful guide for future designs, as well as an explanation of why a nanosatellite can, energetically, survive and do useful tasks in space. [less ▲]

Detailed reference viewed: 30 (3 ULg)
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See detailConservation Agriculture a professional model for the ecological transition of agriculture?
Vankeerberghen, Audrey ULg; Stassart, Pierre M ULg

Conference (2012)

Over the last decades, the agriculture has experienced the development of several alternatives that aim to achieve sustainability, environment protection, farmers' livelihood improvement, etc. Amongst ... [more ▼]

Over the last decades, the agriculture has experienced the development of several alternatives that aim to achieve sustainability, environment protection, farmers' livelihood improvement, etc. Amongst these alternatives, the “Conservation Agriculture” is expanding in many countries as an attempt to maintain soil fertility and prevent soil erosion through the application of principles such as minimal soil disturbance (zero-tillage), permanent soil cover and crop rotations. Based on an empirical case study that is being carried out in the South of Belgium, the paper discusses some questions raised by the Conservation Agriculture movement in the perspective of the theory of transition and its multi-level analysis (Geels 2007). - At first, it suggests to investigate the farmers' trajectories in the adoption of the Conservation Agriculture techniques as well as the building of the movement to see how individual learnings/lock-in affect the transition. - At a collective level, we want to understand how far the associations providing technique support, advices and information to the farmers could be a source of reflexive learning : indeed, Conservation Agriculture is an ambiguous approach mixing ecological concerns with business- and industrial-oriented practices such the use of Round Up Pesticide (chemical tillage) and time saving for big cropfarmers. - In Belgium, Conservation Agriculture is a “professional” initiative with weak visibility in the public sphere (compared to organic agriculture). What are the consequences of this lack of official recognition on the public debate about the future of agriculture ? - Further, the paper tries to highlight how the network or Conservation Agriculture has or not the ability to meet wider society's concerns such as the problem of mudslides in the countryside or use of pesticide. - And finally, through this multi-level analysis, we will address the question of the building of knowledge and know-how around Conservation Agriculture. [less ▲]

Detailed reference viewed: 89 (4 ULg)
See detailThe Sun-earth Imbalance radiometer for a direct measurement of the net heating of the Earth
Dewitte, S; Chevalier, A; Meftah, M et al

Conference (2012)

Although it is generally accepted that the climate on earth is changing due to a radiative energy imbalance at the top of the atmosphere, up to now this radiation imbalance has not been measured directly ... [more ▼]

Although it is generally accepted that the climate on earth is changing due to a radiative energy imbalance at the top of the atmosphere, up to now this radiation imbalance has not been measured directly. The measurement is challenging both in terms of space-time sampling of the radiative energy that is leaving the earth and in terms of accuracy. The incoming solar radiation and the outgoing terrestrial radiation are of nearly equal magnitude – of the order of 340 W/m² – resulting in a much smaller difference or imbalance of the order of 1 W/m². The only way to measure the imbalance with sufficient accuracy is to measure both the incoming solar and the outgoing terrestrial radiation with the same instrument. By reanalyzing data from the NASA LARC Earth Radiation Budget Experiment, we have been able to demonstrate that the sampling problem can be overcome, even with the low resolution Wide Field of View radiometer. We have combined the measurements of the precessing ERBS satellite for midlatitude and equatorial regions with measurements of the sun synchronuous NOAA9 satellite for the polar regions. For the accuracy requirement an improved instrument design is needed. We propose a new instrument, which we call the Sun-earth IMBAlance (SIMBA) radiometer. It is an improved wide field of view cavity radiometer based on our long experience with the DIARAD type of instrument for the measurement of Total Solar Irradiance. Currently we have two DIARAD instruments in space, on SOHO and on the ISS, and a third one will be launched this year on the Picard microsatellite. In this paper, we will present the ERBE sampling study and the SIMBA instrument and nanosatellite design [less ▲]

Detailed reference viewed: 40 (3 ULg)
See detailDes Néandertaliens à la Troisième Caverne de Goyet (Belgique) et leurs gestes mortuaires
Rougier, H.; Crevecoeur, I.; Beauval, C. et al

Conference (2012)

Detailed reference viewed: 50 (2 ULg)
See detailDe l'essence à l'existence. Sartre, Levinas et la question de l'affectivité
Cormann, Grégory ULg

Conference (2011, December 20)

Detailed reference viewed: 37 (1 ULg)
See detailRégulation du phosphore
Krzesinski, Jean-Marie ULg

Conference (2011, December 20)

Detailed reference viewed: 18 (3 ULg)
See detailLe test d'activation des Basophiles et les allergies médicamenteuses
Evrard, Séverine; GADISSEUR, Romy ULg

Conference (2011, December 19)

Detailed reference viewed: 25 (4 ULg)
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See detailImpact of contamination on the TCLUST procedure
Ruwet, Christel ULg; García-Escudero, Luis Angel; Gordaliza, Alfonso et al

Conference (2011, December 18)

The TCLUST procedure is a robust clustering procedure that performs clus- tering with the aim of tting clusters with di erent scatters and weights. As the corresponding objective function can be unbounded ... [more ▼]

The TCLUST procedure is a robust clustering procedure that performs clus- tering with the aim of tting clusters with di erent scatters and weights. As the corresponding objective function can be unbounded, a restriction is added on the eigenvalues-ratio of the scatter matrices. The robustness of the method is guaranteed by allowing the trimming of a given proportion of observations. The resistance to contamination of that procedure will be studied. Results con- cerning breakdown points and some new criteria in robust cluster analysis, such as the dissolution point and the isolation robustness, will be presented. [less ▲]

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See detailSudden crash or long torture: the timing of market reactions to operational loss events
Muller, Aline ULg; Biell, Elizabeth

Conference (2011, December 16)

Detailed reference viewed: 14 (0 ULg)
See detailL'absence et l'interruption dans le parcours interprétatif d'une installation de Dany Danino
Lindenberg Lemos, Carolina ULg

Conference (2011, December 16)

According to the current semiotic hypothesis in the studies of enunciation, we assume negation is to be found in the relations between signs as well as in their semantic differences, and not in positive ... [more ▼]

According to the current semiotic hypothesis in the studies of enunciation, we assume negation is to be found in the relations between signs as well as in their semantic differences, and not in positive realizations of such signs. In the study proposed here, negativity arises from the contrasts of figures, not only because of the opposition between signs themselves, but also because the values apprehended testify a questioning of some artistic and scientific fields. Our paper discusses thus an artistic installation by the Belgian-Israeli artist Dany Danino. The contrast between figures reveal the different fields mentioned in his work – architecture, mathematics, anatomy and also the arts. At the same time that they are cited and assumed, these fields are also the target of some sort of negation. This negative form is, however, not expressed in the signs. It is established in the contrastive syntagmatic organization that creates dynamic relations between the parts and the installation as a whole, as well as its socio-cultural context and its exposition setting. Français : Selon l’hypothèse en vigueur en sémiotique énonciative, nous supposons que la négation se présente, toujours de façon partielle et plus ou moins cachée, dans les relations entre signes ainsi que dans leurs différentiels sémantiques plutôt que dans des formes positivement présentées. Dans l'étude qui est ici proposée, la négativité surgit du contraste des figures, non seulement en raison de l'opposition entre les signes eux-mêmes, mais aussi parce que les valeurs qui s’en dégagent peuvent témoigner d'un questionnement à l’égard des champs artistiques et scientifiques convoqués dans l’œuvre. Notre analyse porte ainsi sur une installation de l'artiste belgo-israélien Dany Danino. Le contraste entre les figures montre que les différents champs en présence — l'architecture, la mathématique, l'anatomie et les arts plastiques eux-mêmes —, dans le même temps qu'ils sont cités et assumés, sont visés par une forme de négation. Or cette forme négative n’est pas connotée dans les signes. Mais elle s’instaure dans un agencement syntagmatique contrastif qui rend dynamique les relations des parties avec le tout de l’installation, en ce compris son contexte socio-culturel et sa situation d’exposition. [less ▲]

Detailed reference viewed: 30 (0 ULg)
See detailLa "Geltung" de Lotze et l'a priori matériel
Dewalque, Arnaud ULg

Conference (2011, December 16)

Je me propose de réévaluer un certain aspect de l’héritage de Lotze, à savoir sa théorie de la validité (Geltung). En m’inspirant notamment d’une remarque de Georg Misch, qui fut l’éditeur de la troisième ... [more ▼]

Je me propose de réévaluer un certain aspect de l’héritage de Lotze, à savoir sa théorie de la validité (Geltung). En m’inspirant notamment d’une remarque de Georg Misch, qui fut l’éditeur de la troisième édition du système de Lotze en 1912, et de certaines déclarations de Husserl, je défendrai la thèse suivante : la théorie lotzéenne de la validité appartient à une tradition qui se caractérise par la découverte de propositions aprioriques d’un certain genre, à savoir des relations of ideas (au sens de Hume), des lois aprioriques matérielles (au sens de Husserl) ou des axiomes objectifs, régionaux ou matériels (au sens de Stumpf). Ce que je voudrais suggérer, en un mot, c’est qu’il y a une connexion étroite entre le concept lotzéen de validité et la découverte de l’a priori matériel. [less ▲]

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See detailNew World : Evaluation écologique de l'axe cognition-fonctionnement
Domken, Marc-André; Laloyaux, Julien ULg

Conference (2011, December 16)

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See detailChargement d’un avion cargo : le cas des marchandises nécessitant des précautions particulières
Kleyntssens, Thomas ULg; Limbourg, Sabine ULg; Schyns, Michael ULg

Conference (2011, December 15)

Le problème du chargement de marchandises dans un avion cargo est soumis à des contraintes strictes de sécurité. C’est un problème d’optimisation combinatoire d’une importance cruciale pour les compagnies ... [more ▼]

Le problème du chargement de marchandises dans un avion cargo est soumis à des contraintes strictes de sécurité. C’est un problème d’optimisation combinatoire d’une importance cruciale pour les compagnies aériennes. En effet, un mauvais chargement diminue l’efficacité d’un avion et impose des tensions importantes sur sa structure qui peuvent entraîner la destruction d’équipements de haute valeur, voire la perte de vies. De plus, certains colis spéciaux ont des contraintes très restrictives. C’est le cas notamment des produits dangereux, des animaux, des marchandises alimentaires et périssables. En plus des incompatibilités entre certains produits, il faut tenir compte des interactions possibles sur des équipements de l’avion. Par exemple, des produits émettant des émissions magnétiques doivent être placés de manière à ne pas avoir des effets néfastes avec les instruments de navigation. Dans cet article, nous proposons d’incorporer ces contraintes liées aux colis nécessitant des précautions particulières dans un programme d’optimisation linéaire mixte du problème de chargement d’un ensemble de Unit Loading Devices et de vrac dans un avion. Les résultats obtenus à partir de données réelles montrent que notre méthode permet d’obtenir des solutions optimales en seulement quelques secondes. [less ▲]

Detailed reference viewed: 189 (12 ULg)
See detailL'image égyptienne peut-elle nier ?
Winand, Jean ULg; Angenot, Valérie ULg

Conference (2011, December 15)

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See detailThings to Do with Texts and Images : Heinrich Seuse’s Exemplar
Falque, Ingrid ULg

Conference (2011, December 15)

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Peer Reviewed
See detailSession 4 Comment sortir de l’enfermement ? (Présidence et discussion)
Strivay, Lucienne ULg

Conference (2011, December 14)

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See detailSudden crash or long torture: the timing of market reactions to operational loss events
Muller, Aline ULg; Biell, Elizabeth

Conference (2011, December 14)

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See detailHTA résistante et cible tensionnelle chez le diabétique
Krzesinski, Jean-Marie ULg

Conference (2011, December 13)

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See detailAn Efficient Algorithm to Perform Multiple Testing in Epistasis Screening
Van Lishout, François ULg; Cattaert, Tom ULg; Mahachie John, Jestinah ULg et al

Conference (2011, December 13)

Background: Research in epistasis or gene-gene interaction detection for human complex traits has grown exponentially over the last few years. It has been marked by promising methodological developments ... [more ▼]

Background: Research in epistasis or gene-gene interaction detection for human complex traits has grown exponentially over the last few years. It has been marked by promising methodological developments, improved translation efforts of statistical epistasis to biological epistasis and attempts to integrate different omics information sources into the epistasis screening to enhance power. The quest for gene-gene interactions poses severe multiple-testing problems. In this context, the maxT algorithm is one technique to control the false-positive rate. However, the memory needed by this algorithm rises linearly with the amount of hypothesis tests. In main-effects detection, this is not a problem since the memory required is thus proportional to the number of SNPs. In contrast, gene-gene interaction studies will require a memory proportional to the squared amount of SNPs. A genome wide epistasis would therefore require terabytes of memory. Hence, cache problems are likely to occur, increasing the computation time. Methods: In this work we present a new version of maxT, requiring an amount of memory independent from the number of genetic effects to be investigated. This algorithm was implemented in C++ in our epistasis screening software MB-MDR-2.6.2 and compared to MB-MDR's first implementation as an R-package (Calle et al., Bioinformatics 2010). We evaluate the new implementation in terms of memory efficiency and speed using simulated data. The software is illustrated on real-life data for Crohn's disease. Results: The sequential version of MBMDR-2.6.2 is approximately 5,500 times faster than its R counterparts. The parallel version (tested on a cluster composed of 14 blades, containing each 4 quad-cores Intel Xeon CPU E5520@2.27 GHz) is approximately 900,000 times faster than the latter, for results of the same quality on the simulated data. It analyses all gene-gene interactions of a dataset of 100,000 SNPs typed on 1000 individuals within 4 days. Our program found 14 SNP-SNP interactions with a p-value less than 0.05 on the real-life Crohn’s disease data. Conclusions: Our software is able to solve large-scale SNP-SNP interactions problems within a few days, without using much memory. A new implementation to reach genome wide epistasis screening is under construction. In the context of Crohn's disease, MBMDR-2.6.2 found signal in regions well known in the field and our results could be explained from a biological point of view. This demonstrates the power of our software to find relevant phenotype-genotype associations. [less ▲]

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See detail17-O-Actetyl-10-hydroxycorynantheol, a selective antiplasmodial alkaloid isolated from Strychnos usambarensis leaves
Cao, Martine ULg; Muganga, Raymond ULg; Tits, Monique ULg et al

Conference (2011, December 13)

In the course of our investigations on Strychnos usambarensis leaves in order to isolate isostrychnopentamine, the main alkaloid responsible for the antiplasmodial activity of the plant, a new tertiary ... [more ▼]

In the course of our investigations on Strychnos usambarensis leaves in order to isolate isostrychnopentamine, the main alkaloid responsible for the antiplasmodial activity of the plant, a new tertiary indolic alkaloid has been isolated: 17-O-acetyl, 10-hydroxycorynantheol 1. Its structure was determined by means of spectroscopic and spectrometric methods such as UV, IR, CD, NMR and ESI-MS. 17-O-acetyl, 10-hydroxycorynantheol 1 is one of the most active monomeric indole alkaloid known to date showing an in vitro activity against Plasmodium falciparum close to 5 µM and a high selectivity. [less ▲]

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See detailIntérêts des traitements symptomatiques anti-arthrosiques
Bruyère, Olivier ULg

Conference (2011, December 12)

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See detail"Les langues: le coeur et la raison"
Defays, Jean-Marc ULg

Conference (2011, December 12)

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See detailSinging the ‘dagong’ via the web: suffering, longings and ideals. An exploration of the everyday politics of migrant labour in South China
Florence, Eric ULg

Conference (2011, December 10)

Since the 1980s, new forms of labour, new subjectivities and attitudes related to the market and to flexible capitalism have been more and more prized in the PRC coexisting with older strands of ... [more ▼]

Since the 1980s, new forms of labour, new subjectivities and attitudes related to the market and to flexible capitalism have been more and more prized in the PRC coexisting with older strands of narratives and cultural productions linked to Mao-era state-socialism. The process of cultural re-invention and of contention around “migrant labour” provides a particularly interesting vintage point in order to delve into the twin dynamics of rural workers’ unstable identification processes (at the individual and collective levels) and at the state project of legitimation. Within this paper, I intend to explore how the new media cultures inform and relate to the cultural politics of migrant labour in today’s China, including the shaping of new subjectivities, by examining rural workers’ use of the internet to narrate both their hometown and their experience of labour. I will look specifically at the everyday politics of rural workers’ practices of “song writing” via the internet and will delve upon the following questions: how does this practice of song writing/listening inform the politics of identity formation among rural labourers? how can one relate rural migrant workers’ song writing to the increasingly “on the ground” organized waves of labour protests in South China? I will argue that the virtual space which this practice provides a useful vintage point in order to examine how state and non-state actors can engage each other and how the Party-state is constantly re-inventing novel ways to shape its system of ideological signs. The datas used for this paper will include songs and poems by rural workers, an extensive analysis by the author of the Shenzhen mainstream written press, participant observation, in-depth interviews, and a large body of unpublished letters to the editor of several migrants’ magazines. [less ▲]

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See detailThe future in the present: "entangled temporalities" and religious life in the Kimbanguist church
Melice, Anne ULg; Sarró, Ramon

Conference (2011, December 09)

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Peer Reviewed
See detailPaysage et développement territorial, apports et limites de la démarche de projet local de paysage. Le cas de la Wallonie (Belgique)
Droeven, Emilie ULg

Conference (2011, December 09)

The European Landscape Convention acknowledges landscape as a key element in territorial development, management and planning (assessment of the effects of certain public and private projects on the ... [more ▼]

The European Landscape Convention acknowledges landscape as a key element in territorial development, management and planning (assessment of the effects of certain public and private projects on the environment, re-landscaping, landscape projects design, charters…). Based on a doctoral research investigating the processes of landscape project design on a local scale in Wallonia (Belgium) in Nature Parks, Local Action Groups or River Contracts, the paper tries to analyze how landscape influences territorial practices and issues. It aims also to produce an evaluation on how landscape action transforms territorial governance and decision-making process. In doing so, the paper relates landscape project contributions and limits assuming new landscape management challenges. And finally, it reframes the contribution of the landscape issue to regional and local development. [less ▲]

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See detailEvaluation comparative des statuts de races de poules locales : Algérie, Vietnam, Congo (RDC).
Moula, Nassim ULg; Antoine-Moussiaux, Nicolas ULg; Salhi, Abdellah et al

Conference (2011, December 09)

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See detailKnowledge and its value
Janvier, Antoine ULg; Leclercq, Bruno ULg

Conference (2011, December 09)

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See detailThe secrets of the Kinect ... in depth!
Lejeune, Antoine ULg; Van Droogenbroeck, Marc ULg; Verly, Jacques ULg

Conference (2011, December 08)

The slides present the Kinect in depth. The major technological ideas are explained. In addition, the presentation gives an overview of all the libraries available to interface to the Kinect.

Detailed reference viewed: 329 (11 ULg)
See detailLong-term biogeochemical impacts of liming the ocean
Ilyina, Tatiana; Wolf-Gladrow, Dieter; Munhoven, Guy ULg et al

Conference (2011, December 08)

Fossil fuel CO2 emissions result in large-scale long-term perturbations in seawater chemistry. Oceans take up atmospheric CO2, and several geo-engineering approaches have been suggested to mitigate ... [more ▼]

Fossil fuel CO2 emissions result in large-scale long-term perturbations in seawater chemistry. Oceans take up atmospheric CO2, and several geo-engineering approaches have been suggested to mitigate impacts of CO2 emissions and resulting ocean acidification that are based on this property. One of them is to enhance weathering processes to remove atmospheric CO2. This method involves dissolving rocks (i.e. limestone) or adding strong bases (i.e. calcium hydroxide) in the upper ocean and is termed as liming the oceans. The net effect of this approach is to increase ocean alkalinity, thereby increasing the oceanic capacity to store anthropogenic CO2. Another effect of adding alkalinity would be to drive seawater to higher pH values and thus counteract the ongoing ocean acidification. However, whereas adding bases only alter alkalinity of seawater, dissolution of carbonates perturb both, alkalinity and dissolved inorganic carbon budgets. Thus, on longer time scales, these two methods will likely have different biogeochemical effects in the ocean. Here we test enduring implications of the two approaches for marine carbon cycle using the global ocean biogeochemical model HAMOCC. In our model scenarios we add alkalinity in the amounts proportional to fossil fuel emissions. We compare the longterm effectiveness of the two geo-engineering approaches to decrease atmospheric CO2. [less ▲]

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See detailObservations of the White Light Corona from Solar Orbiter and Solar Probe Plus
Howard, Russell; Thernisien, Arnaud; Vourlidas, Angelos et al

Conference (2011, December 08)

The SoloHI instrument on Solar Orbiter and the WISPR instrument on Solar Probe+ will make white light coronagraphic images of the corona as the two spacecraft orbit the Sun. The minimum perihelia for ... [more ▼]

The SoloHI instrument on Solar Orbiter and the WISPR instrument on Solar Probe+ will make white light coronagraphic images of the corona as the two spacecraft orbit the Sun. The minimum perihelia for Solar Orbiter is about 60 Rsun and for SP+ is 9.5 Rsun. The wide field of view of the WISPR instrument (about 105 degrees radially) corresponds to viewing the corona from 2.2 Rsun to 20 Rsun. Thus the entire Thomson hemisphere is contained within the telescope’s field and we need to think of the instrument as being a traditional remote sensing instrument and then transitioning to a local in-situ instrument. The local behavior derives from the fact that the maximum Thomson scattering will favor the electron plasma close to the spacecraft - exactly what the in-situ instruments will be sampling. SoloHI and WISPR will also observe scattered light from dust in the inner heliosphere, which will be an entirely new spatial regime for dust observations from a coronagraph, which we assume to arise from dust in the general neighborhood of about half way between the observer and the Sun. As the dust grains approach the Sun, they evaporate and do not contribute to the scattering. A dust free zone has been postulated to exist somewhere inside of 5 Rsun where all dust is evaporated, but this has never been observed. The radial position where the evaporation occurs will depend on the precise molecular composition of the individual grains. The orbital plane of Solar Orbiter will gradually increase up to about 35 degrees, enabling a very different view through the zodiacal dust cloud to test the models generated from in-ecliptic observations. In this paper we will explore some of the issues associated with the observation of the dust and will present a simple model to explore the sensitivity of the instrument to observe such evaporations. [less ▲]

Detailed reference viewed: 82 (5 ULg)