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See detail"Elles furent étudiantes durant l'entre-deux-guerres"
Dor, Juliette ULiege

in Dor, Juliette; Gavray, Claire; Henneau, Marie-Elisabeth (Eds.) et al Où sont les femmes? La féminisation à l'Université de Liège (2017)

Survey of the first Liège female students' careers. They are organized by faculty and/or department, and shared trends are highlighted

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See detailÊtre étudiante à Liège durant l'entre-deux-guerres
Dor, Juliette ULiege

in Dor, Juliette (Ed.) Où sont les femmes? La féminisation à l'Université de Liège (2017)

The first female students. Historical and sociocultural context

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See detailPast mining areas as rural capital – Perspectives from Bucovina and Wallonia
Schmitz, Serge ULiege; Dubois, Charline ULiege; Vanderheyden, Vincent ULiege et al

Conference (2017, September)

In this paper, we consider old mining sites in two very different contexts, a post-socialist Carpathians area and a Western European area that knew precocious industrialisation. How these past mining ... [more ▼]

In this paper, we consider old mining sites in two very different contexts, a post-socialist Carpathians area and a Western European area that knew precocious industrialisation. How these past mining areas could develop and enhance rural development and heritage landscapes? [less ▲]

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See detailQuelle politique énergétique en Belgique pour les 30 prochaines années ?
Lilien, Jean-Louis ULiege

Book published by Université de Liège (2017)

L’évolution vers les énergies renouvelables (éoliennes et panneaux photovoltaïques) paraît incontournable. La cogénération (électricité et chaleur) aussi. Sans doute faut-il faire encore des progrès dans ... [more ▼]

L’évolution vers les énergies renouvelables (éoliennes et panneaux photovoltaïques) paraît incontournable. La cogénération (électricité et chaleur) aussi. Sans doute faut-il faire encore des progrès dans le stockage de l’énergie et, peut-être, dans l’utilisation de l’hydrogène. Hélas la variabilité du climat ne génère pas une production constante d’énergie. Notre proposons dès lors une solution basée sur une solidarité européenne (au sens large) et une souplesse d’utilisation du réseau d’énergie électrique. Tout en prônant un changement radical de paradigme : notre consommation doit s’adapter à la production et non l’inverse. [less ▲]

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See detailTD-GCxGC-HRTOFMS in biological applications 
Focant, Jean-François ULiege; Pesesse, Romain ULiege; Dubois, Lena ULiege et al

Conference (2017, September)

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See detailPhoto-Ionization GCxGC-HRTOF/MS for Aviation Fuel Characterization
Giri, Anupam ULiege; Courtiade; Racaud et al

Conference (2017, September)

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See detailPerformance correlations for characterizing the optimal off-design operation of an ORC power system
Dickes, Rémi ULiege; Dumont, Olivier ULiege; Quoilin, Sylvain ULiege et al

in Energy Procedia (2017), 129

The goal of this work is to develop a set of simple correlations in order to characterize the optimal off-design performance of an ORC power system. To this end, a 2kWe ORC test rig is investigated as ... [more ▼]

The goal of this work is to develop a set of simple correlations in order to characterize the optimal off-design performance of an ORC power system. To this end, a 2kWe ORC test rig is investigated as case study and a validated off-design model is used to assess the highest net power generation achievable by the system over its complete range of operating conditions. The off-design model employed is charge-sensitive (i.e. it imposes the total mass of refrigerant in the system) which permits to predict the ORC state (i.e. its pressures, temperatures, mass flow rates, subcooling, etc.) based on the system boundary conditions only. Since such modelling approach and optimization process are time-consuming, a set of simple analytical equations is developed so as to easily predict the optimal performance of the ORC systems. [less ▲]

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See detailFlowering roots: Insensitive Root Growth 1 contributes to photoperiod-induced root responses in Arabidopsis.
Orman-Ligeza, Beata ULiege; Detry, Nathalie ULiege; Tocquin, Pierre ULiege et al

Poster (2017, September)

The capacity to perceive and respond to seasonal changes of day length is essential for flowering plants. Under favourable photoperiod, a mobile stimulus synthesized in leaves moves to the shoot apex and ... [more ▼]

The capacity to perceive and respond to seasonal changes of day length is essential for flowering plants. Under favourable photoperiod, a mobile stimulus synthesized in leaves moves to the shoot apex and triggers the expression of genes required for the transition to flower initiation. Although transition from vegetative to reproductive state also encompasses a transcriptional response in roots, the internal signalling pathways and how root system architecture adjusts to this changing status remain elusive. Here we show in Arabidopsis that root growth rate increases upon a transfer to flowering-inductive long days while remaining constant under short days. To elucidate genetic components of this response, we performed a meta-analysis of available root-growth and flowering-related arrays and selected genes with overlapping transcriptional profiles for further analyses. Loss of function in a member of the basic leucine zipper transcription factor gene family, hereafter named Insensitive Root Growth-1 (IRG1), was found to suppress photoperiod-response of root growth with no defect in flowering time. We show that sucrose, but neither glucose nor mannitol in the growth medium under long days, is needed to trigger this response. In addition, extending the photoperiod with non-photosynthetic far red light had no effect on root growth of irg-1 mutant, alike wild type Col-0. The expression level of IRG1 in the roots remains low during the daytime and peaks late at night, suggesting that this gene is regulated by the clock’s evening loop. Taken together, our results suggest that IRG1 may be involved in sucrose-mediated stimulation of root growth during the night phase in Arabidopsis. The functional characterisation of IRG1 is currently underway. [less ▲]

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See detailTowards understanding the function of JOINTLESS gene in tomato inflorescence
Huerga Fernandez, Samuel ULiege; Gómez Roldán, Maria Victoria; Orman-Ligeza, Beata ULiege et al

Poster (2017, September)

The lack of fruit abscission is a trait of great agronomical value. In tomato, the jointless phenotype, referring to the lack of abscission zone (AZ) in the flower pedicel, has been obtained by two ... [more ▼]

The lack of fruit abscission is a trait of great agronomical value. In tomato, the jointless phenotype, referring to the lack of abscission zone (AZ) in the flower pedicel, has been obtained by two independent mutations, named jointless (j) and jointless-2 (j-2). The corresponding genes encode MADS-box transcription factors, as shown in 2000 for J (Mao et al. 2000) and very recently for J-2, known as SlMBP21 (Gomez-Roldan et al., 2017). Similar to the quartet model of MADS-box protein complexes regulating floral organ formation, J and J-2 interact with MADS-box partners, among which MACROCRALYX (MC), to regulate AZ formation (Liu et al. 2014). In addition to - or in connection with - AZ formation, J acts during the building of the inflorescence to regulate meristem fate. Indeed j mutants produce leafy inflorescences characterized by faster flower maturation and resumption of vegetative meristems (Périlleux et al. 2014). For these traits, j is epistatic to j-2. The involvement of J in the regulation of meristem fate is consistent with the roles of its closest homologs in Arabidopsis, AGAMOUS LIKE 24 (AGL24) and SHORT VEGETATIVE PHASE (SVP). Our goal is to identify J targets in order to unravel its multiple functions in the tomato inflorescence. [less ▲]

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See detailL'autonomie de la volonté dans les relations familiales internationales
Wautelet, Patrick ULiege; Fulchiron, Hugues; Panet, Amélie

Book published by Bruylant (2017)

Les règlements de l’Union européenne adoptés dans le domaine du droit international privé laissent une place de plus en plus importante à la volonté des parties dans le règlement des litiges ... [more ▼]

Les règlements de l’Union européenne adoptés dans le domaine du droit international privé laissent une place de plus en plus importante à la volonté des parties dans le règlement des litiges transfrontières. Phénomène généralisé du droit international privé contemporain, l’autonomie de la volonté s’accroît dans un domaine qui lui était traditionnellement étranger : le domaine du droit de la famille, entendu au sens large (droit patrimonial et extra patrimonial). L’essor de l’autonomie de la volonté en droit de l’Union européenne soulève de nombreuses questions : quel doit être aujourd’hui le domaine de l’autonomie de la volonté ? Comment confronter l’autonomie de la volonté avec les lois de police ? Quelle place faut-il accorder aux ordres publics nationaux ? Quel rôle doivent jouer les droits fondamentaux (moteur ou limite) ? Au-delà de ces questions théoriques, l’ouvrage tente également de répondre aux interrogations pratiques : comment les avocats et les notaires peuvent-ils aider leurs clients à mettre en œuvre l’autonomie de la volonté que leur concède l’Union européenne ? Qu’implique aujourd’hui leur devoir de conseil ? Confrontés à une clause de choix de loi en matière familiale, ou peut-être demain, à une clause d’élection de for, quels doivent être les réflexes des magistrats ? [less ▲]

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See detailA two-step methodology for human pose estimation increasing the accuracy and reducing the amount of learning samples dramatically
Azrour, Samir ULiege; Pierard, Sébastien ULiege; Geurts, Pierre ULiege et al

in Advanced Concepts for Intelligent Vision Systems (2017, September)

In this paper, we present a two-step methodology to improve existing human pose estimation methods from a single depth image. Instead of learning the direct mapping from the depth image to the 3D pose, we ... [more ▼]

In this paper, we present a two-step methodology to improve existing human pose estimation methods from a single depth image. Instead of learning the direct mapping from the depth image to the 3D pose, we first estimate the orientation of the standing person seen by the camera and then use this information to dynamically select a pose estimation model suited for this particular orientation. We evaluated our method on a public dataset of realistic depth images with precise ground truth joints location. Our experiments show that our method decreases the error of a state-of-the-art pose estimation method by 30%, or reduces the size of the needed learning set by a factor larger than 10. [less ▲]

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See detailLes modes d'acquisition et de transmission du savoir médical dans l'antiquité gréco-romaine
Marganne, Marie-Hélène ULiege

in Histoire des Sciences Médicales (2017, September), 51(2), 163-173

This paper aims to define and describe the ways of acquiring and transmitting medical knowledge in Greco-Roman Antiquity through an analysis of literary, archaeological, and, primarily, papyrological ... [more ▼]

This paper aims to define and describe the ways of acquiring and transmitting medical knowledge in Greco-Roman Antiquity through an analysis of literary, archaeological, and, primarily, papyrological sources. The methods and practices revealed by these sources include experiment, analogy, and imitation, oral and written teaching, the composition and copying of books (illustrated or not), as well as the elaboration of commentaries, abridgments, questionnaires, and word lists. These modes of knowledge transfer were intended not only for medical practitioners and students, but also for philiatroi, for generally educated people, as well as for scribes, and eventually tachygraphers, of medical books. [less ▲]

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See detailLa carte conceptuelle en séance collective d'éducation thérapeutique du patient : quelles condirtions d'utilisation et quels effets ?
Yvon Divré, Anthony; Leclercq, Dieudonné ULiege; Marchand, Claire

in Education Thérapeutique du Patient [=ETP] = Therapeutic Patient Education [=TPE] (2017), 9(10103),

Résumé - Introduction : A l’origine, les cartes conceptuelles ont été conçues pour faciliter l’apprentissage des étudiants en les aidant à organiser leurs connaissances sous la forme de schémas. Or, dans ... [more ▼]

Résumé - Introduction : A l’origine, les cartes conceptuelles ont été conçues pour faciliter l’apprentissage des étudiants en les aidant à organiser leurs connaissances sous la forme de schémas. Or, dans le domaine de l’ETP, elles sont principalement utilisées dans un but d’évaluation pour un diagnostic éducatif ou en fin d’éducation, et moins souvent comme technique d’aide à l’apprentissage. Objectifs : L’étude vise à : (1) évaluer les effets d’un mode d’utilisation des cartes conceptuelles, en petit groupes et en pratique courante ; (2) à partir des données, réfléchir aux conditions qui pourraient faciliter ou limiter leur utilisation. Méthodes : Sept groupes de maximum 5 patients ont bénéficié d’une séance d’une durée d’une heure selon la méthode habituelle (N=30) et sept autres groupes avec la technique de la carte conceptuelle (N=29). Les connaissances des patients ont été évaluées avant (PRE) et le lendemain de la séance (POST) à l’aide d’un test qui comportait 30 questions Vrai-Faux avec degrés de certitude (15 questions de connaissance, 6 de jugement portant sur des menus et 9 relevant de 3 mini situations problèmes requérant des décisions). La satisfaction des patients a été évaluée par questionnaire et la perception des animatrices par l’utilisation d’un journal de bord et lors d’un entretien collectif. Résultats : Le pourcentage de Réponses Correctes (%RC) au test a augmenté dans les deux ensembles de groupes (gain 5%, gain relatif 17,6%) sans différence statistiquement significative (à P.05) entre les deux ensembles. Les gains sont plus importants pour les questions de connaissance (gain relatif 28,8%) que pour celles sur les situations problèmes (14,4%) et sur les menus (2,8%). Les degrés de certitude mettent en évidence que les réponses nuisibles (erreurs avec certitude élevée), aux alentours de 20% au départ, n’ont pas régressé au post-test. Diverses hypothèses sont avancées pour expliquer ces résultats. Les taux de satisfaction des patients vis-à-vis de la séance d’éducation sont supérieurs à 89% quelle que soit la méthode utilisée. Les groupes animés avec la carte conceptuelle ainsi que les animatrices ont souligné l’intérêt de celle-ci pour hiérarchiser et clarifier les connaissances. La qualité de la formation à la technique des cartes conceptuelles constitue une des principales conditions pour leur utilisation. Conclusion : Des principes sont proposés pour guider de nouvelles recherches destinées à vérifier dans quelles conditions l’utilisation de la carte conceptuelle comme technique pédagogique en ETP améliore la capacité de résolution de problème. [less ▲]

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See detailDamage Detection in Structures Based on Principal Component Analysis of Forced Harmonic Responses
Golinval, Jean-Claude ULiege

in Procedia Engineering (2017, September)

An approach based on principal component analysis (PCA) is considered here to tackle the problem of structural damage detection. The key idea of PCA is to reduce a large number of measured data to a much ... [more ▼]

An approach based on principal component analysis (PCA) is considered here to tackle the problem of structural damage detection. The key idea of PCA is to reduce a large number of measured data to a much smaller number of uncorrelated variables while retaining as much as possible of the variation in the original data. PCA is applied here to the problem of damage detection in structures submitted to harmonic excitation. When processing vibration measurements, it can be shown that the basis of eigenvectors (called the proper orthogonal modes) span the same subspace as the mode-shape vectors of the monitored structure. Thus the damage detection problem may be solved using the concept of subspace angle between a reference subspace spanned by the eigenvectors of the initial (undamaged) structure and the subspace spanned by the eigenvectors of the current (possibly damaged) structure. The method is illustrated on the example of a real truss structure for damage detection and is combined to a model updating technique for damage localization. [less ▲]

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See detailTargeted mutagenesis of orphan GPCRs of the SREB family
Laschet, Céline ULiege; Dupuis, Nadine ULiege; Geubelle, Pierre ULiege et al

Poster (2017, September)

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See detailL’EXPRESSION DES CONVICTIONS RELIGIEUSES DANS LES RELATIONS DE TRAVAIL
Kéfer, Fabienne ULiege

in Revue de Droit Social = Tijdschrift voor Sociaal Recht (2017), (3), 527-583

This article explores the way in which Belgian law deals with situations where labour law engages with the right to freedom of religion and belief and the right not to be discriminated on grounds of ... [more ▼]

This article explores the way in which Belgian law deals with situations where labour law engages with the right to freedom of religion and belief and the right not to be discriminated on grounds of religion. It starts with the Belgian regime of religious freedom, protection against discrimination and valid reasons for termination of employment. It then considers specific areas of those regimes in Belgian labour relations, such as the work schedule accommodation, the refusal to perform work, clothing and religious symbols in the workplace, and the work in an ethos organization. It relates mainly to Belgian case law but also to the case law of the European courts. [less ▲]

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See detailLexical Diachronic Semantic Maps
Georgakopoulos, Athanasios ULiege; Polis, Stéphane ULiege

Poster (2017, September)

Detailed reference viewed: 19 (2 ULiège)
See detailOù sont les femmes? La féminisation à l'Université de Liège
Dor, Juliette ULiege; Gavray, Claire ULiege; Henneau, Marie-Elisabeth ULiege et al

Book published by Presses universitaires de Liège (2017)

Une première partie est consacrée aux étapes d'arrivée des pionnières à l'Université et aux débats qui ont eu lieu à propos de cette question. Une autre partie est consacrée à des témoignages de femmes ... [more ▼]

Une première partie est consacrée aux étapes d'arrivée des pionnières à l'Université et aux débats qui ont eu lieu à propos de cette question. Une autre partie est consacrée à des témoignages de femmes liées à l'Université parce qu'elles y ont étudié, travaillé, parce qu'elles y exercent des responsabilités. Le contenu de ces témoignages fait l'objet d'analyses. [less ▲]

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See detailSemantic Background Subtraction
Braham, Marc ULiege; Pierard, Sébastien ULiege; Van Droogenbroeck, Marc ULiege

in IEEE International Conference on Image Processing (ICIP), Beijing 17-20 September 2017 (2017, September)

We introduce the notion of semantic background subtraction, a novel framework for motion detection in video sequences. The key innovation consists to leverage object-level semantics to address the variety ... [more ▼]

We introduce the notion of semantic background subtraction, a novel framework for motion detection in video sequences. The key innovation consists to leverage object-level semantics to address the variety of challenging scenarios for background subtraction. Our framework combines the information of a semantic segmentation algorithm, expressed by a probability for each pixel, with the output of any background subtraction algorithm to reduce false positive detections produced by illumination changes, dynamic backgrounds, strong shadows, and ghosts. In addition, it maintains a fully semantic background model to improve the detection of camouflaged foreground objects. Experiments led on the CDNet dataset show that we managed to improve, significantly, almost all background subtraction algorithms of the CDNet leaderboard, and reduce the mean overall error rate of all the 34 algorithms (resp. of the best 5 algorithms) by roughly 50% (resp. 20%). Note that a C++ implementation of the framework is available at http://www.telecom.ulg.ac.be/semantic. [less ▲]

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