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See detailThe Potential of Digital Tools and Technologies in Architectural Heritage Research for an Inclusive Approach to Built Heritage
Eisazadeh, Negin ULiege; Houbart, Claudine ULiege; Hallot, Pierre ULiege et al

Conference (in press)

In recent years, inclusive design (a.k.a. universal design or design for all) is one of the developed approaches which aim to consider the diverse human abilities and conditions in the design process. As ... [more ▼]

In recent years, inclusive design (a.k.a. universal design or design for all) is one of the developed approaches which aim to consider the diverse human abilities and conditions in the design process. As defined by the European Institute for Design and Disability (EIDD) ‘design for all’ is designing for diversity, social inclusion and equality. Considering the social and demographic changes in the 21st century, which include an international movement towards social inclusion and more specifically the rights of disabled people, an inclusive approach is turning into a necessity for today’s diverse and ageing society. In the case of architectural and urban heritage, the disabled people or in better words those with diverse sensory, mental or mobility abilities who differ from the general public, have the right to experience, interact with, and engage with heritage and its values. As part of an extensive interdisciplinary research on inclusive approaches to built heritage values, which connects the fields of architecture, history, conservation, inclusive design, and digital humanities, this paper investigates the potentials of incorporating digital tools and techniques in the different aspects of this research. The extensive study involves communication between researchers, relevant professional experts, and the historic built environment with the target community of disabled people and in this paper, the digital means to facilitate these interactions have been studied. As a step towards answering the question ‘what are suitable methods and tools for facilitating and acquiring insight into diversely abled people’s engagement with and understanding of architectural heritage and its values?’, it more specifically focuses on the interaction of the disabled people with the historic architecture and urban spaces. Additionally, in a more general approach, by linking the fields of digital humanities and architectural research, the existing tools for the different stages of research ranging from data collection and storage, data analysis, and dissemination are explored. By conducting and elaborating relevant research examples, this study shows how incorporating digital tools and techniques derived from Digital Humanities - such as retrieving data through APIs, textual analysis, creating and querying databases, and data visualization - can facilitate research in the field of architecture and built heritage. Moreover, in studying the relation between disability and the historic built environment, it indicates that acquiring knowledge on the potentials in practical digital tools for disabled people’s interaction with the built heritage, can have a significant impact on the research approach and findings. As for an inclusive approach to built heritage, the disabled people can be taken into account with their prospective extended digital abilities. Hence in today’s digital world, integrating the digital tools and technologies in architectural heritage research is not only a necessary practical mean for conducting research, but can also impact the theoretical approach, allowing to carry out extensive and innovative research in an efficient manner. [less ▲]

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See detailDiagram, the machine abstraite of contemporary architecture
Van Rooyen, Xavier ULiege

Conference (in press)

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See detailLa personnalité borderline : Situation et environnement postmoderne
Englebert, Jérôme ULiege

Conference (2018, November 16)

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See detailEthos et systèmes psychiatriques : Pour une reconsidération des inadaptations
Englebert, Jérôme ULiege

Conference (2018, November 10)

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See detailNuovi culti eroici nell'alto Ellenismo: una riconsiderazione di destinatari, attori e contesti
Caneva, Stefano ULiege; Coppola, Alessandra

Conference (2018, November)

This paper explores the entanglement between social status and the bestowal of heroic honours upon deceased political leaders and elite members in the late-classical and early Hellenistic period ... [more ▼]

This paper explores the entanglement between social status and the bestowal of heroic honours upon deceased political leaders and elite members in the late-classical and early Hellenistic period. Epigraphic and literary sources shedding light on the establishment, justification and social impact of heroic honours practised by different social groups will be discussed, to investigate the implications of the social status of cult agents and recipients upon the definition of the position of honoured humans in relation to the superhuman sphere. This will also imply exploring the types of relationships existing between private heroic foundations and royal divine foundations in the studied period. Contrary to a generally accepted assumption, it will be argued that heroization was common for members of elite families, while it was not the primary option to reward local political leaders, since their honours were principally modelled after godlike honours. For instance, when they came into existence during the mid-Hellenistic period, cults for high-ranking civic leaders were largely modelled on godlike honours for monarchs, but were decreed after death – it will be argued – to preserve a hierarchical distinction between the social status of their recipients. The posthumous bestowal explains why honours for great civic benefactors also drew on typically heroic honours, such as public burial inside the city. However, similar contaminations of heroic and divine honours had already been exploited for the worshipped deceased kings of the early Hellenistic period (e.g. Alexander at Alexandria, Demetrius at Demetrias), so that a certain mixture of divine and heroic features could be said to have been directly transferred from royal to non-royal leaders. In neither case, however, did the presence of heroic features imply that cultic honours for Hellenistic political leaders would be commonly labelled as heroic. A revealing case is that of the Hellenistic leader Aratus, whose “fitting honours” decreed at Sicyon (Polyb. 8.12-7-8; Plut., Arat. 53) are labelled as heroic by moderns only because they were decreed posthumously. Similarly, at Megalopolis, the posthumous honours for the commander Philopoimen comprised a public tomb in the agora – a typically heroic honour – but were labelled as “honours equal to the gods”, not as heroic. We must wait for the late-Hellenistic and Imperial period to trace a significant multiplication of honours for political leaders explicitly labelled heroic. [less ▲]

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See detailRiparian characterization from remote sensing in a multiple scale perspectives. A few examples
Piégay, Hervé; Michez, Adrien ULiege; Raepple, Bianca et al

Conference (2018, October 18)

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See detailA la table du souverain. Modération, excès et hiérarchie dans les banquets de cour hellénistiques et impériaux
Caneva, Stefano ULiege

Conference (2018, October 04)

A travers une sélection de sources littéraires grecques et latines, datant de l’époque d’Alexandre jusqu’à la haute période impériale, on se propose de discuter quelques aspects de la thématique ... [more ▼]

A travers une sélection de sources littéraires grecques et latines, datant de l’époque d’Alexandre jusqu’à la haute période impériale, on se propose de discuter quelques aspects de la thématique concernant l’existence (ou l’absence) de règles morales auxquelles la conduite des souverains devrait être sujette par rapport à la consommation de la nourriture et du vin. Plutôt que de prendre en considération l’aspect médical de la diète royale, l’étude se focalise sur ses implications sociales et symboliques : notamment, le rôle de la consommation sociale de la nourriture dans la définition d’une royauté qui accepte d’obéir à des règles partagées de modération et d’autocontrôle, promues et protégés par les élites, ou qui, par contre, prétend de manifester sa dimension charismatique à travers une conduite se plaçant consciemment au-delà des limites imposées aux sujets. Les textes analysés discutent le thème du rapport entre le souverain et la nourriture soit à travers les récits de banquets devenus célèbres dans la tradition historiographique et rhétorique, soit par le biais de scènes mythiques ou de banquets historiques imaginaires, où la fiction littéraire sert à thématiser le rapport entre le souverain et les élites ainsi que la mise en place d’une hiérarchie de cour. Un aspect crucial de cette analyse concerne l’identification des classes sociales appelées, dans les textes, à définir les règles du rapport entre le roi et la nourriture, ainsi qu’à exercer le rôle de contrôleurs du respect de ces règles. Un autre aspect à considérer est l’appartenance sociale des auteurs des textes qui prescrivent, approuvent ou stigmatisent certaines pratiques. Considérées ensemble, ces deux perspectives nous permettront de discuter les intérêts et l’agenda des groupes qui s’expriment à travers ces textes. Une attention particulière sera donnée à l’époque de transition entre la fin de la période hellénistique et le début du Principat, lorsque la réflexion sur la sobriété ou la tryphè (ou, selon une perspective critique, la débauche) du roi s’inscrit dans une discussion plus large sur le choix de continuité ou de rupture entre le modèle royal hellénistique et le type de pouvoir monarchique universel expérimenté par les premiers empereurs. [less ▲]

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See detailSteering new social fields of mobilization in global cities between Latin America and Europe: The Case of Latin American transnational political engagement in Brussels
Lara Guerrero, Larisa Viridiana ULiege; Vivas Romero, Maria ULiege

Conference (2018, July 02)

Social scientists and migration scholars have a growing interest in how and why migrants engage in transnational political movements in both their home and host countries. Migrants are active agents ... [more ▼]

Social scientists and migration scholars have a growing interest in how and why migrants engage in transnational political movements in both their home and host countries. Migrants are active agents participating in transnational social movements. They create, transform, and exploit transnational networks to engage in political movements in their homeland and in their hostland from cities. This chapter aims to answer the following questions: how do global cities shape transnational fields of social mobilization? What is the nexus between these transnational fields of social mobilization and access to welfare states? Theoretically, this contribution introduces a new spatial level of analysis to unpack the dynamics and dimensions of migrant social movements organized in global cities that connect Latin Americans to their countries of origin as well. By focusing specifically on the city of Brussels, this contribution analyzes the impact of global cities in shaping the capacity and desire of Latin American migrants in engaging in political movements. Empirically, this chapter presents two case studies where Latin Americans living in Brussels engage in political transnational activities to change their living conditions both in their host and home cities. These examples illustrate the role of migrants influencing and shaping welfare state and political systems that traverse the Atlantic Ocean between their sending and receiving societies. [less ▲]

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See detailThe Manifestation of Psychopathy in Schizophrenia Spectrum Disorders
De Page, Louis; Mercenier, Sophie; Titeca, Pierre et al

Conference (2018, June 12)

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See detailTutorial "Single-case evaluation of consciousness: same patient, different modalities": fMRI-based assessment of a single patient
Demertzi, Athina ULiege

Conference (2018, June)

Tutorial: Patients with disorders of consciousness are by definition unable to communicate. This makes the evaluation of their state of consciousness a major challenge. To date, there are not standardized ... [more ▼]

Tutorial: Patients with disorders of consciousness are by definition unable to communicate. This makes the evaluation of their state of consciousness a major challenge. To date, there are not standardized guidelines as to how a post-comatose patient can be evaluated by means of assisting technologies. With this tutorial, we bring together specialists from three expert centers dealing with intensive evaluation of the state of consciousness in patients sustaining severe brain injuries. Our aim is to illustrate how we can infer a clinical diagnosis by integrating different data from behavioral and brain function as measured with different technological modalities. Specifically, we will discuss the case of a patient for whom behavioral, electrophysiological and neuroimaging data have been acquired with the aim to provide a global diagnosis of the state of consciousness. We will show how each of these evaluations are performed in step-by-step manner. Each presenter will further illustrate the methodological challenges and pragmatic solutions towards the inference of valid conclusions. In order to integrate the results into a global diagnostic category, we wish to engage the audience to participate interactively towards the composition of a final diagnostic report, as we typically do at our clinical sites [less ▲]

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See detailHellenistic cultic foundations for the dead: Civic, royal, individual, and groups' initiatives in interaction
Caneva, Stefano ULiege

Conference (2018, May)

The paper explores the interaction between different kinds of social agents in the funding and management of cult foundations for the dead in the late-classical and Hellenistic period. Textual and ... [more ▼]

The paper explores the interaction between different kinds of social agents in the funding and management of cult foundations for the dead in the late-classical and Hellenistic period. Textual and archaeological dossiers will be discussed in order to 1) investigate the occupation of sacred space in existing sanctuaries and other public spaces as well as the creation of new sacred places, specifically meant to host ritual practice for dead individuals or groups; 2) provide a comparative analysis of the patterns of establishment, funding and management of cult foundations pertaining to civic, royal, individual or groups' initiatives; 3) explore the forms of interaction between various agents involved, e.g. between civic and private initiative in funding and management. When possible, these considerations will also be integrated with an evaluation of the religious status attributed to the honoured persons, with particular attention to the semantic fields of heroization and deification. Thus an attempt will be made at tracking down possible general trends of religious administration beyond local particularities, and at schematizing these configurations in a model taking into account four factors: the social status of ritual agents and recipients; the religious status acknowledged to cult recipients; the methods of funding and management; the degree of monumentalization and social impact of the cult foundations. [less ▲]

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See detail“Death is the only real utopia”: Adorno and Kluge on television
Cormann, Grégory ULiege

Conference (2018, May)

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See detailL’École des Annales et ses ‘marges’
Genin, Vincent ULiege; Dosse, François

Conference (2018, April 25)

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See detailLa liberté des pathologies (ou les pathologies de la liberté)
Englebert, Jérôme ULiege

Conference (2018, April 24)

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See detailBehavior of steel frame structures under natural fire and collapse mechanisms during cooling
Gernay, Thomas ULiege; Gamba, Antonio; Elhami Khorasani, Negar

Conference (2018, April 20)

Structural fire engineering has long relied on a prescriptive approach based on isolated member behavior under continuously heating standard fire. By definition, this approach does not allow comprehending ... [more ▼]

Structural fire engineering has long relied on a prescriptive approach based on isolated member behavior under continuously heating standard fire. By definition, this approach does not allow comprehending the effects of interaction between members of a complete structure nor the effects of real fire exposure. Yet, such effects can have a significant influence on the response of real buildings to fire. Notably, when a structure has survived a fully developed fire, the cooling phase that inevitably follows generates effects that may endanger the structure stability. This has been attested by real structural collapses and poses a specific threat to firefighters. However, the behavior of structures under natural fire and the causes of failure during cooling are still not well understood. This research investigates the response of steel-framed structures to natural fires with the aim to analyze the possible collapse mechanisms during cooling. Numerical simulations by nonlinear finite element method are conducted for different fire scenarios and structural designs. The simulations model the thermo-mechanical behavior of the frames accounting for the interaction between members during the entire fire duration until burnout. Different collapse mechanisms during cooling are highlighted and discussed, including connection failure and progressive collapse under localized fire. In the latter case, collapse of members not directly affected by the fire occurs during the cooling phase. These mechanisms result from a complex combination of several factors, such as the recovery of thermal elongation, the recovery of stiffness, and the prior development of permanent strains in the heated members. The results show that steel-framed structures are subject to collapse during the cooling phase of natural fires. Therefore, natural fires with heating-cooling sequences represent a loading case that should be considered in structural fire analyses and could lead to specific design provisions to prevent the occurrence of collapse during cooling. [less ▲]

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See detailAvowal and recognition in psychopathology: philosophical issues about anosognosia
Englebert, Jérôme ULiege

Conference (2018, April 18)

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See detailRhinologic Emergencies: a Prospective Audit in a University Teaching Hospital
ROGISTER, Florence ULiege; ATTA, Lucas; Delrez, Sophie ULiege et al

Conference (2018, April)

Aims: Increasing pressure to reduce healthcare cost threatens the provision of acute ENT coverage round the clock. Our goal was to audit our emergency rhinologic activity over a one-month period. Methods ... [more ▼]

Aims: Increasing pressure to reduce healthcare cost threatens the provision of acute ENT coverage round the clock. Our goal was to audit our emergency rhinologic activity over a one-month period. Methods: A prospective audit for all emergency ENT referrals was carried out from May 1st to May 31th 2017. Descriptive statistics were produced for age, sex, origin, time of arrival, diagnosis and outcome. A specific subgroup analysis was performed for rhinologic emergencies. A basic cost analysis was ran. Results: Over the study period, 190 patients were referred to the ENT emergency service. Twenty percent patients presented with nose or sinus complaint (36.8% with otological or neuro-vestibular primary complaint, 43.2% with laryngeal or neck complaint). Nose and throat complaints were more likely to present at night or on weekends. Ear complaints were more likely to present during business hours. Rhinologic complaint was more likely to require technical or surgical management than ear or throat complaint. Patients with nose complaint required minor procedure in 43.2% cases (35.6% of the total minor procedures), and required surgical procedure in 13.5% cases. Among the total ENT emergency surgical procedures, 62.5% were rhinologic ones, involving the nose (50%) or the sinus (12.5%). Ear or throat initial complaint were more likely to require no treatment or ambulatory management. Conclusion: The emergency rhinologic activity is justified in our hospital. An initial rhinological complaint was more likely to require specific ENT management than other complaints. ENT cover is an efficient service provision, especially for rhinologic emergencies. [less ▲]

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See detailBaseline SNOT-22 as Outcome Predictor: a Powerful Tool just at Hand
ROGISTER, Florence ULiege; DE DORLODOT, Clotilde; ANSARI, Edward et al

Conference (2018, April)

Aims: SNOT-22 was initially designed for rhinosinusitis, but was recenty validated in various nose conditions. Nose or sinus complaint is a common cause of consultation in primary care or ENT clinic ... [more ▼]

Aims: SNOT-22 was initially designed for rhinosinusitis, but was recenty validated in various nose conditions. Nose or sinus complaint is a common cause of consultation in primary care or ENT clinic. Therefore we sought to optimize the simple and versatile instrument SNOT-22. Our aim was to determine the outcome of patients and healthy volunteers solely based on the pattern of the baseline SNOT-22 in a multi-centre study. Methods: Sixty-six healthy volunteers and 383 patients presenting to the rhinology clinic of the ENT academic departments of Godinne, Liege and Brussels participated in this study. SNOT-22 from all participants were collected blindly prior to diagnosis. Participants were then categorized in 5 groups according to their outcome: control, medical rhinologic condition, sinus surgery, functional nose surgery. SNOT-22 items relevant to each group were determined by multinomial logistic regression. Results: Control subjects showed the lowest SNOT-22 scores for all items. Medical rhinologic patients had lower scores than surgical patients. Patients requiring sinus surgery and those listed for nose surgery exhibited a specific pattern of SNOT-22 score. Most relevant items were #1 need to blow nose, #5 post-nasal discharge, #6 thick nasal discharge, #10 facial pain and #21 sense of smell. Conclusions: Distinct SNOT-22 patterns were correlated to subjects outcome. SNOT-22 was able to differentiate patients from controls, to score severity, and could further provide an accurate description of pathology. Baseline SNOT-22 could localize pathology in the sinus or in the nose and predict the need for surgical treatment. [less ▲]

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See detailGHRH-deleted Mice Are Severely Deficient in Vaccine And Immunological Responses Against Streptococcus Pneumoniae
Farhat, Khalil ULiege; Bodart, Gwennaëlle ULiege; Desmet, Christophe ULiege et al

Conference (2018, March 20)

Background and objective of the work. Ghrh-/- mice with a severe deficiency of their somatotrope GHRH/GH/IGF1 axis (1) are resistant to experimental allergic encephalomyelitis (2). In basal conditions ... [more ▼]

Background and objective of the work. Ghrh-/- mice with a severe deficiency of their somatotrope GHRH/GH/IGF1 axis (1) are resistant to experimental allergic encephalomyelitis (2). In basal conditions, thymus and T-cell development are not severely affected but a marked spleen atrophy and B-cell lymphopenia were constantly observed (3). Therefore, we investigated vaccinal and anti-infectious responses of Ghrh-/- mice against S.pneumoniae, a T-independent pathogen. Results. Transgenic mice were unable to trigger production of specific IgM after vaccination with either native pneumococcal polysaccharides (PPS, Pnx23) or protein-PPS conjugate (Prev13). GH treatment of Ghrh-/- mice restored IgM response to Pnx23 vaccine but not to Prev13 suggesting that GH exerts a significant impact on the spleen marginal zone that is strongly implicated in T-independent immunological response to pneumococcal polysaccharides. After intranasal instillation of a non-lethal dose of S.pneumoniae, Ghrh-/- mice exhibited a dramatic susceptibility with a time-dependent increase in lung bacterial load, a bacteremia already after 24h, and a survival limit of 48-72h. In marked contrast, WT and heterozygote mice completely cleared S.pneumoniae infection after 24h. Lungs of infected Ghrh-/- mice were massively infiltrated by inflammatory macrophages, while lung B cells were markedly decreased. Transcription of Ifng, Il10, Cd40, and Cxcl9 was highly increased in the lungs of infected Ghrh-/- mice, whereas Tgfb and Iggj transcripts were unchanged. Resistance of Ghrh-/- mice to infection by influenzavirus H1N1 (a T-dependent antigen) was normal or slightly decreased. Conclusion. This animal model shows that the somatotrope GHRH/GH/IGF1 axis plays a vital and unsuspected role in the vaccine and immunological defense against S.pneumoniae. [less ▲]

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See detailConservation Ethics in the 21th Century: Towards an Extended Toolkit
Houbart, Claudine ULiege; Dawans, Stéphane ULiege

Conference (2018, March)

In his now classic essay on the « Régimes d’historicité », the French historian François Hartog (2003) has very well described the effect of globalisation, democratisation and mass consumerism on our ... [more ▼]

In his now classic essay on the « Régimes d’historicité », the French historian François Hartog (2003) has very well described the effect of globalisation, democratisation and mass consumerism on our relation with the past and thus, with heritage. In the course of the 1970’s, at a time when the ink of the Venice Charter was barely dry, postmodernity triggered a loss of collective anchoring and memory, paradoxically accompanied by an amplification of the thirst for commemorations, in the name of identity or heritage. Pierre Nora’s great endeavour « Les lieux de mémoire », fully corresponds to this « presentism » era, including aside from monuments, museum and archives, intellectual constructions such as the Larousse encyclopaedia (Nora 1989). It very well illustrates the « extension of the heritage domain » as defined by the sociologist Nathalie Heinich (2009). In our « post-monumental » era, anything can possibly become heritage, regardless of scale, of artistic qualities, of age or ontological degree – from tangible to intangible. This is a sign of times. Following the example of Nelson Goodman replacing the essentialist definitions of art with the question « When is there art ? » (Goodman 1976), we should consider focusing on a dynamic and operational definition of heritage. The question « When is there heritage ?» better correspond to contemporary cultural studies and our attempt to understand « heritagization »; it contains the idea of a performative action, implying new actors, new dynamics, new process, new research questions, new difficulties and new opportunities. And by necessity new concepts. We are far from rejecting theories from the past which provided us with effective and stimulating tools. But who could still imagine today, in the situation we described, that any system could fully encompass the heritage reality as the grand theories – Brandi, Riegl,… – succeeded to do? The repeated attempts to get the Venice charter revised from the 1970’s on (Houbart 2014), and the multiplication of thematic documents and charters are the best illustration of this impossibility. But while postmodern thinkers made us suspicious towards large systems, they also made us more modest and above all, more inclined to respect « bricolage », as a most helpful attitude after a shipwreck. We believe that the current return to a case by case approach – as promoted from the interwar period by theoreticians such as Ambrogio Annoni (1946) – often mostly relying on practical constraints such as reuse and technical performances, combined with the use of decontextualised concepts – separated articles from the Venice Charter, for example – and practices – using the Ise shrine periodical rebuilding to advocate any reconstruction project – doesn’t mean to accept a cynical relativism in answer to the cause of a capital-intensive machine. But in practice, we cannot deny that it has sometimes been the case: the clearest examples are the debates addressing the reconstruction of monuments all over Europe, based on a jumble of arguments confusing the pure mercantilism of the tourism industry or unconfessed political reasons with post-conflict identity issues or religious traditions (Monumental 2010). Reflecting on such reconstruction projects, raising questions of identity, has convinced us of the incompleteness of the toolkit we inherited from 20th century theoreticians. Though still perfectly relevant to address the issues that were already present at the time when they were elaborated, they might prove inappropriate to address new types of heritage, new concerns, new issues such as cultural tourism, inclusive approaches, modern heritage or the digital turn. In this context, we have been drawn to look at texts outside the conservation sphere, starting from ontology of art and analytical philosophy. We discovered that taking a step to the side could provide a stimulating insight on heritage conservation problems. In fact, it is not surprising that, facing what many have called a heritage inflation, some new actors could help us. Now that heritage has quitted the monuments sphere to encompass any material or immaterial reality worthy of conservation and that the expert point of view is challenged by the ones of a broad range of stakeholders, from the user to the investor, it becomes interesting to look at this reality from different points of view borrowed to a wide range of human sciences such as law, communication, aesthetics, semiotics, anthropology or philosophy, to name a few. Together with our colleague Muriel Verbeeck, we are currently gathering texts in order to propose an anthology that could complement the existing ones in helping to fill conceptual gaps and throw a reinvigorating light on new problems raising old questions. The originality of the project is to chose most texts outside the conservation world, and to address movable and immovable heritage at the same time. During our presentation, we will provide some examples of the usefulness of these new concepts, some already known by a number of conservators – such as the distinction proposed by Nelson Goodman between allography and autography (Goodman 1976) –, some not – the impact of intention on identity, based on texts by Theodore Scaltsas (1981), for example –, and will encourage the members of the committee who might be interested in this approach to contribute to the project. [less ▲]

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See detailLe droit européen peut-il sauver votre litige en droit des affaires?
Van Cleynenbreugel, Pieter ULiege

Conference (2018, February 23)

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See detailArtification de l'industrie culturelle et culture populaire
Moreau, Timothée ULiege

Conference (2018, January 25)

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See detailLésions musculo-squelettiques et diabéte
Kaux, Jean-François ULiege

Conference (2018, January 17)

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See detailDall'edizione all'interpretazione: quale uso per la Storia digitale?
Miesse, Hélène ULiege

Conference (2018, January 15)

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See detailCo-créer, pour quoi ? Justifications et imaginaires socio-techniques sous-tendant une nouvelle vague de participation en sciences et technologies
Macq, Hadrien ULiege

Conference (2018, January 12)

Les dernières années ont vu une évolution notable des formes de participation publique dans les domaines liés aux sciences et aux technologies. En effet, les années 1970 à 2000 ont vu l’émergence de ... [more ▼]

Les dernières années ont vu une évolution notable des formes de participation publique dans les domaines liés aux sciences et aux technologies. En effet, les années 1970 à 2000 ont vu l’émergence de dispositifs participatifs, souvent empreints d’un idéal délibératif, visant à inclure une multiplicité de « publics » dans des processus de prise de décision. De nos jours, cependant, se développent un ensemble de pratiques d’inclusion de publics dans la production de savoir et d’innovation. Ces pratiques, regroupées sous le label de « co-création », sont fréquemment analysées dans la littérature scientifique sous l’angle de leur contribution à la production de savoirs valides, ou d’innovations plus acceptables, voire plus responsables. L’objectif de cette communication est de les analyser en tant que pratiques de participation publique, performatrices de constructions politiques. Cette communication analyse dès lors les justifications mises en avant par les autorités publiques pour appuyer la promotion des pratiques de co-création dans deux contextes socio-politiques : la Commission Européenne et la Région Wallonne. L’analyse des justifications permet de connecter ces pratiques aux espaces plus larges, notamment institutionnels, dans lesquelles elles sont promues et de les lier aux imaginaires dans lesquels elles s’inscrivent et qui témoignent d’une vision particulière de la relation entre science, technologie et société. [less ▲]

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See detailQualité et sécurité des soins au travers des enregistrements légaux
THONON, Olivier ULiege; NINANE, Françoise

Conference (2018, January 10)

OBJECTIFS D'APPRENTISSAGE : - Évaluation d’un niveau de preuve des interventions infirmières. - Prédiction du caractère inopportun des séjours à l’hôpital.

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See detailActualités en HTA pendant l'année 2017
XHIGNESSE, Patricia ULiege; Krzesinski, Jean-Marie ULiege

Conference (2018, January 09)

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See detailLASER CLAD HIGH SPEED STEEL THICK DEPOSITS: CORRELATIONS BETWEEN THE LOCAL THERMAL HISTORY, THE MICROSTRUCTURES AND THE WEAR MECHANISMS
Mertens, Anne ULiege; Hashemi, Seyedeh Neda ULiege; Tchuindjang, Jérôme Tchoufack ULiege et al

Conference (2018, January 04)

Thick High Speed Steel (HSS) coatings are Fe-Cr-C-based alloys that have proved useful in a wide variety of applications including machining and cutting, hot stamping and hot strip mills, thanks to their ... [more ▼]

Thick High Speed Steel (HSS) coatings are Fe-Cr-C-based alloys that have proved useful in a wide variety of applications including machining and cutting, hot stamping and hot strip mills, thanks to their complex microstructure containing very hard carbides as e.g. V-rich MC, Mo- or W-rich M2C, Cr-rich M7C3 or M3C. Direct laser deposition, also known as laser cladding, has recently emerged as a very promising technique for the production and repair of such thick coatings. Indeed, the very high cooling and solidification rates imposed by laser cladding result in strongly refined out-of-equilibrium microstructures and potentially enhanced wear resistance. However, the progressive accumulation of heat in the deposit during fabrication leads to variations of the thermal history as a function of position inside the build, resulting in turn into local variations of microstructure and wear properties. Consequently, this work aims to investigate the correlations between the local thermal history, the microstructures and the wear mechanisms of three HSS grades with varying contents of V, Mo and W so as to vary the type, size, morphology and amounts of the hard carbides. In a first step, 2D finite element simulations compute the thermal field during the direct laser deposition of 20 mm thick HSS coatings (a similar FE approach [Tran 2017] has already been published by the group on Ti alloy). The validated thermal history yields a deeper understanding of the microstructure generated as a function of the position inside the deposits. In a second step, the wear behaviour of the deposits is characterised at two different depths (i.e. at 2 mm from the free surface or at 2/3 of the total height) and for two constant test temperatures (i.e. room temperature [Hashemi 2017] and 300°C) using a pin-on-disc tribometer. In analysing the results of these tests, a particular attention was given to the role of the various carbides – including their type, morphology, hardness and failure mode – in determining the wear mechanisms of laser clad HSS deposits at the two tested temperatures. REFERENCES: Tran H.S., Tchuindjang J.T., Paydas H., Mertens A., Jardin R.T., Duchene L., Carrus R., Lecomte-Beckers J. and Habraken A., 2017, “3D thermal finite element analysis of laser cladding processed Ti-6Al-4V part with microstructural correlations” Mater. Des. 128, 130. Hashemi N., Mertens A., Montrieux H.-M., Tchuindjang J.T., Dedry O., Carrus R. and Lecomte-Beckers J., 2017, “Oxidative wear behaviour of laser clad high speed steel thick deposits: Influence of sliding speed, carbide type and morphology” Surf. Coat. Technol. 315, 519 [less ▲]

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See detailModeling the electron-nuclear dynamics induced by short laser pulses in molecules
Mignolet, Benoît ULiege

Conference (2018, January)

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See detailPsychiatrie et liberté : approche phénoménologique
Englebert, Jérôme ULiege; Cormann, Grégory ULiege

Conference (2018)

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See detailHow to test experimentally if soil hydraulic conductivity can be predicted with the maximum power principle?
Westhoff, Martijn; Dewals, Benjamin ULiege; Zehe, Erwin

Conference (2018)

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See detailPaysage sans paysan (Gilles Clément / Yannick Ogor)
Hagelstein, Maud ULiege; Janvier, Antoine ULiege

Conference (2017, December 19)

On observe aujourd’hui un engouement généralisé pour les expériences agricoles (ou horticoles) en milieu citadin : jardins collectifs, tentatives d’autogestion, potagers mobiles, parcelles délimitées par ... [more ▼]

On observe aujourd’hui un engouement généralisé pour les expériences agricoles (ou horticoles) en milieu citadin : jardins collectifs, tentatives d’autogestion, potagers mobiles, parcelles délimitées par des palettes récupérées, occupation de terrains vagues, dynamisation des quartiers autour de fermes urbaines, gestion par les collectivités locales, économie de partage, contact avec des gestes anciens, des légumes oubliés, des espèces protégées, etc. On ne peut qu’être séduit par ce qui apparaît d’abord ou en tout cas qui se présente d’abord dans sa dimension alternative (dans sa dimension écologique et politique alternative) : autre forme d’échange, autre rapport à la vie végétale, autre modalité du collectif – qui transforment le quotidien. À partir de ce constat, on voudrait proposer une lecture des travaux et des idées développées par le jardinier-paysagiste (artiste aussi) Gilles Clément – dont l’intérêt et le succès semblent a priori liés à l’extension de ces expériences dans les villes. Clément permet de poser une question importante : quel rapport à l’environnement peut-on encore construire/imaginer, étant entendu qu’il est désormais intenable – en situation d’anthropocène : en situation d’usure des ressources et d’impact négatif irréversible sur l’environnement – de continuer à s’engager dans un rapport de stricte exploitation sans vergogne de la nature, mais qu’on ne peut pas non plus se contenter du purisme écologique et de la solution qui consisterait à constituer des réserves, des enclos ou des ilots préservés où la diversité serait en quelque sorte parquée. Dans plusieurs de ses textes (Manifeste du Tiers-paysage, L’alternative ambiante, Toujours la vie invente, Où en est l’herbe ?, etc.), Gilles Clément montre que la nature résiste à la fois à son exploitation et à sa « préservation », en tant qu’elle est dynamique/mouvante et inventive : elle trouve d’ailleurs son meilleur terrain non pas dans la campagne ou dans les parcs mais dans ce qu’il appelle le tiers-paysage : sur les friches et les délaissés urbains, ces endroits où l’activité humaine n’est pas inexistante mais où elle est apparemment suspendue (bordures d’autoroutes, contre-bas de chemins de fer, anciens terrains industriels abandonnés, terrils, lisières des bois, pentes trop raides, berges des rivières, etc.). Donc des endroits qui ne sont pas ou qui ne sont plus entretenus (même s’ils bordent ou s’ils portent les traces criantes de l’activité humaine), et qui deviennent des refuges très précieux pour la biodiversité (botanique, entomologique, etc.). Les villes jouent donc manifestement un rôle très important – chez Clément – dans la construction de sa théorie des délaissés (théorie à laquelle on voudrait donner une autre dimension dans notre conclusion). Gilles Clément prône donc dans ses textes des idées enthousiasmantes, et qui séduisent d’ailleurs le plus grand nombre (y compris ceux qui comme nous n’entendent rien au jardinage) : le respect du rythme / de la cadence propres aux plantes, la minimisation des contraintes portées sur leur libre croissance, la légitimation de leur circulation au sein de ce qu’il appelle « le jardin planétaire », l’usage « non commerçant » de la biodiversité, etc. Ces idées ont aujourd’hui fait du chemin ; elles ont d’ailleurs commencé à intégrer massivement les plans d’urbanisme actuels (chaque ville déploie sa petite friche). Mais ce n’est pas exactement ce qui nous intéresse chez lui, ou pas seulement, et on voudrait proposer une lecture autre – légèrement décalée – de sa réflexion écologique. Pour nous : en développant ses idées sur le Tiers-paysage, en proposant un inventaire de ce qu’il repère comme des formes d’« art involontaire », ou en portant une conception inédite du jardinage, Clément met au cœur des questions d’environnement la question paysanne, c’est-à-dire permet de penser les problèmes écologiques au départ de la figure du paysan (ou plutôt au départ de sa disparition). Il permet ce lien en dépit du fait qu’il ne parle pas, ou très peu, du paysan, mais plutôt de l’artiste, du jardiner, du jardiner-artiste. Et on voudrait expliquer ici pourquoi cette opération est à nos yeux décisive, et peut-être même urgente. [less ▲]

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See detailInutilités temporaires : notes sur quelques délaissés (Gilles Clément / Yaël André)
Hamers, Jérémy ULiege

Conference (2017, December 19)

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See detailEspaces publics : de la critique populaire au contrôle quotidien
Glorie, Caroline ULiege

Conference (2017, December 18)

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See detailVégétaliser pour résister? Le cas de "Liège Souffle Vert"
Brahy, Rachel ULiege; Ruelle, Christine ULiege

Conference (2017, December 18)

Végétaliser pour résister ? Le cas de « Liege Souffle Vert » En quelques décennies, les exigences citoyennes en matière de participation à la « fabrique de la ville » n’ont cessé de grandir. Cette ... [more ▼]

Végétaliser pour résister ? Le cas de « Liege Souffle Vert » En quelques décennies, les exigences citoyennes en matière de participation à la « fabrique de la ville » n’ont cessé de grandir. Cette évolution trouverait sa source dans le refus de laisser les Etats, les classes et leurs représentants, la liberté de définir seuls l’action à mener (Tosel, 1998). Face à des aménagements urbains « imposés » par les pouvoirs publics, une forme de résistance politique émerge et se matérialise, de plus en plus souvent, par une « action directe » des citadins sur leur milieu (Blanc, Emelianoff et al, 2008). En témoignent les micro-interventions qui fleurissent dans l’espace public : tricots urbains, tags artistiques souvent emprunts d’humour, verdissement de pieds d’arbres, bacs potagers, etc. A Liège, il y a quelques années encore, une grande méfiance prévalait de la part des responsables politiques vis-à-vis de ces « prises de possession » des espaces publics. Parallèlement, la participation citoyenne fait l’objet de déclarations de plus en plus insistantes et nombreuses. C’est dans ce contexte, traversé de paradoxes, que l’opération « Liège Souffle Vert » voit le jour en 2016. Plus exactement, l’asbl Songes, à l’initiative, propose d’organiser (et de financer) un « appel à projets citoyens » sur le territoire liégeois. Progressivement, les responsables de la Ville acceptent et soutiennent l’idée (difficile de faire autrement ?). Finalement, dix-huit projets seront déposés par des équipes associant, comme stipulé dans l’appel, une dimension verte, une dimension artistique et une dimension citoyenne. Six seront réalisés, avec environ 7.000 visiteurs sur le parcours créé durant l’été 2016, et un écho retentissant dans les médias. Pour l’asbl, l’objectif était double : d’une part, interroger les citadins sur la place du végétal et de l’art dans la ville et, d’autre part, accompagner un mouvement plus profond de transformation et de libération des usages de l’espace public. Dans cette communication, nous proposons de revenir sur ce cas d’étude et, en nous appuyant sur des entretiens réalisés avec différents intervenants, de discuter de l’intérêt et des éventuels écueils associés à ce type de dispositif. L’ « appel à projets » constitue-t-il un instrument intéressant pour soutenir une forme de résistance politique ? Si oui, jusqu’à quel point ? Quels rapports de force se jouent ? Les initiatives citoyennes menées dans ce cadre ne travaillent-elles pas, au final, pour et à la place de la Ville ? Ne font-elles pas l’objet d’une forme d’instrumentalisation ? Si oui, par qui ? Comment se gèrent les tensions entre des objectifs de gestion/régulation de l’espace public, d’émancipation citoyenne et une exigence de qualité artistique du produit proposé ? Quelle est la légitimité de Songes par rapport aux liégeois et par rapport à ces questions ? Quelles valeurs sont défendues ? Quel est le rôle, voire l’intérêt, des artistes mobilisés dans ce type d’opérations ? Quelles modalités d’engagements prévalent pour les participants ou visiteurs ? Par qui l’opération est-elle finalement soutenue et investie ? L’exposé - qui prend appui sur cet ensemble de questionnements - se structure autour de deux interrogations majeures : l’une concerne les aspects de gouvernance et se concentre sur l’instrument « appel à projets », l’autre vise à déplier les supports narratifs à l’œuvre (les imaginaires) chez les différents acteurs, afin de repérer leur potentiel performatif pour la « fabrique de la ville », et ce dans le cadre de controverses (Genard, Berger, Vanhellemont, 2016). [less ▲]

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See detailL’occupation gravettienne de Goyet: nouvelles observations et contribution à la sériation du Gravettien en Belgique
Touzé, Olivier ULiege; Noiret, Pierre ULiege; Flas, Damien ULiege

Conference (2017, December 16)

Dans son travail fondateur publié à la fin des années 1970, Marcel Otte définissait trois grands faciès typologiques au sein du Gravettien de Belgique (Otte, 1979). Le caractère extrêmement parcellaire ... [more ▼]

Dans son travail fondateur publié à la fin des années 1970, Marcel Otte définissait trois grands faciès typologiques au sein du Gravettien de Belgique (Otte, 1979). Le caractère extrêmement parcellaire des données chronologiques disponibles à l’époque laissait cependant ouverte la question de leur éventuelle valeur temporelle. Il faut attendre la Table ronde des Eyzies-de-Tayac en 2004 pour que l’accumulation d’observations stratigraphiques et de datations radiocarbones permettent d’agencer ces faciès dans le temps, et ainsi de proposer une reconstitution de la séquence gravettienne belge (Otte & Noiret, 2007). Ces faciès sont alors liés les uns aux autres par un système de filiation défini à partir de certains types d’outils particuliers apparaissant avec les faciès les plus anciens, et perdurant jusqu’aux faciès les plus récents. Toutefois, ce phénomène de persistance de « fossiles directeurs » est reconnu uniquement dans les sites de grottes, par ailleurs largement majoritaires en Belgique, et parmi lesquels les sites de Goyet figurent parmi les plus importants. Au regard des données récemment collectées sur d’autres gisements, en particulier les sites de plein air de Maisières-Canal et de la Station de l’Hermitage, le réexamen des principaux marqueurs gravettiens identifiés dans les grottes et l’Abri supérieur de Goyet suggère cependant la présence de plusieurs composantes gravettiennes. En conséquence, nous proposons dans cette communication : - d’interpréter la coexistence de certains fossiles directeurs spécifiques comme le résultat du mélange de plusieurs occupations gravettiennes, - de déterminer en quoi les sites de Goyet peuvent contribuer à préciser l’état de nos connaissances sur la séquence gravettienne en Belgique. Bibliographie OTTE M., 1979. Le Paléolithique supérieur ancien en Belgique. Bruxelles : Musée royaux d'Art et d'Histoire (Monographies d'Archéologie nationales, 5), 684 p. OTTE M., NOIRET P., 2007. Le Gravettien du Nord-ouest de l’Europe. In : Le Gravettien : entités régionales d'une paléoculture européenne, Actes de la Table ronde, Les Eyzies-de-Tayac, juillet 2004 (Paléo, 19), pp. 243-255. [less ▲]

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See detailVariable selection in proportional hazards cure model with time-varying covariates, application to US bank failures
Beretta, Alessandro ULiege; Heuchenne, Cédric ULiege

Conference (2017, December 16)

From a survival analysis perspective, bank failures data exhibit heavy censoring rates, but defaults are rare events. This empirical evidence can be explained by the existence of a subpopulation of banks ... [more ▼]

From a survival analysis perspective, bank failures data exhibit heavy censoring rates, but defaults are rare events. This empirical evidence can be explained by the existence of a subpopulation of banks likely immune from bankruptcy. In this regard, we use a mixture cure model to separate the factors with an influence on the susceptibility to default from the ones affecting the survival time of susceptible banks. We extend a semi-parametric proportional hazards cure model to time-varying covariates and we propose a variable selection technique based on its penalized likelihood. By means of a simulation study, we show how this technique performs reasonably well. Finally, we illustrate an application to commercial bank failures in the United States over the period 2006-2016. [less ▲]

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See detailAn extension of the Pascal triangle and the Sierpiński gasket to finite words
Stipulanti, Manon ULiege

Conference (2017, December 15)

The binomial coefficient (u,v) of two finite words u and v (on a finite alphabet) is the number of times the word v appears inside the word u as a subsequence (or, as a "scattered" subword). For instance ... [more ▼]

The binomial coefficient (u,v) of two finite words u and v (on a finite alphabet) is the number of times the word v appears inside the word u as a subsequence (or, as a "scattered" subword). For instance, (abbabab,ab)=4. This concept naturally extends the classical binomial coefficients of integers, and has been widely studied for about thirty years (see, for instance, Simon and Sakarovitch). In this talk, I present the research lead from October 2015: I give the main ideas that lead to an extension of the Pascal triangles to base-2 expansions of integers and also give an overview of the results obtained so far, linked to this generalization. [less ▲]

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See detailMédée d’Euripide et Médée de Sénèque : bases de données et outils statistiques du LASLA
Vandersmissen, Marc ULiege

Conference (2017, December 15)

The LASLA (Laboratoire d’Analyse Statistique des Langues Anciennes), at the University of Liege, has been annotating Latin and Greek texts since 1962. Its results were published in Indices verborum. The ... [more ▼]

The LASLA (Laboratoire d’Analyse Statistique des Langues Anciennes), at the University of Liege, has been annotating Latin and Greek texts since 1962. Its results were published in Indices verborum. The laboratory has also been collaborating to develop statistical tools, as HYPERBASE. This program has been recently adapted to search the Greek texts (lexicon and morphosyntax). It is now possible to apply logometry concepts to Greek corpus. This paper aims to test these methods on Euripides’ Medea. It helps to show how to study discourses’ characterisation of the characters’ play and to answer to the following questions: Is Medea speaking in a female way? Which is the role of the nurse? What is the Jason’s responsibility in the drama? [less ▲]

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See detailAnalyse comparative de la motivation et du sentiment d’efficacité comme facteurs d’engagement liés à la créativité. Cas de futurs enseignants de niveau préscolaire en Roumanie et en Belgique. Projet PEERS 2016-2017
Hausman, Matthieu ULiege

Conference (2017, December 15)

Retour d'expérience sur un projet PEERS mené conjointement entre la Haute Ecole de la Ville de Liège (Belgique) et l'Université Alexandru Ioan Cuza de Iasi (Roumanie). Projet réunissant deux équipes d ... [more ▼]

Retour d'expérience sur un projet PEERS mené conjointement entre la Haute Ecole de la Ville de Liège (Belgique) et l'Université Alexandru Ioan Cuza de Iasi (Roumanie). Projet réunissant deux équipes d'étudiants et enseignants-chercheurs autour du concept de créativité. Les étudiants sont-ils motivés à l'idée de s'engager dans des tâches mobilisant de la créativité? Qu'en est-il de leur sentiment d'efficacité personnelle face à ces tâches? Ce sont ces deux questions qui ont mobilisés les équipes de recherche. Les résultats font état d'une motivation avérée ainsi que d'un sentiment positif. Toutefois, ils ne permettent pas d'observer des différences significatives entre étudiants ayant déjà vécu ce type de tâches et d'autres, inexpérimentés, ni entre les étudiants des deux institutions concernées. [less ▲]

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See detailHardware vs. software: How to make the energy system smarter?
Jacqmin, Julien ULiege

Conference (2017, December 15)

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Peer Reviewed
See detailLe tout (n’)égale (pas) la somme des parties : Lecture phénoménologique d’une hypothèse systémique
Englebert, Jérôme ULiege; Follet, Valérie

Conference (2017, December 15)

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See detailÉvaluation des anomalies de l’expérience du monde : apports de l’échelle EAWE à l’étude de l’intersubjectivité schizophrénique
Mossay, Françoise; Valentiny, Caroline; Englebert, Jérôme ULiege

Conference (2017, December 15)

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See detailDiagnostic de la maladie de Lyme.
Pitel, Pierre Hugues; Hary, Claudine; Amory, Hélène ULiege et al

Conference (2017, December 14)

Le diagnostic de certitude de la maladie Borreliose de Lyme est éminemment complexe. La seule efficacité thérapeutique n’étant pas une preuve absolue, seule un faisceau de concordance et la réalisation ... [more ▼]

Le diagnostic de certitude de la maladie Borreliose de Lyme est éminemment complexe. La seule efficacité thérapeutique n’étant pas une preuve absolue, seule un faisceau de concordance et la réalisation d’études terrain pourront nous aider à essayer de débroussailler ce qui est encore chez le cheval une nébuleuse sujette à de nombreuses croyances et controverses. Certaines de ces études françaises et belges seront exposées lors de la présentation orale. [less ▲]

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See detailLe mode de gestion du service de l’eau d’irrigation : Un déterminant de l’efficacité technique des exploitations agrumicoles du périmètre de Souss-Massa au Maroc
Maatala, Nassreddine ULiege; Lebailly, Philippe ULiege

Conference (2017, December 14)

La région du Souss-Massa, connue par la culture agrumicole à haute valeur ajoutée, est confrontée au problème de mobilisation des ressources en eau. Depuis le début de l’année 2000, la nappe du ... [more ▼]

La région du Souss-Massa, connue par la culture agrumicole à haute valeur ajoutée, est confrontée au problème de mobilisation des ressources en eau. Depuis le début de l’année 2000, la nappe du périmètre de la région a atteint la limite de son potentiel renouvelable Cette situation a incité le gouvernement marocain à réaliser un projet de sauvegarde du périmètre El Guerdane situé dans cette région. Ce projet, lancé en 2005, a été réalisé dans le cadre du Partenariat Public-Privé avec un partenaire en charge de la conception et la construction et qui veille à l’exploitation et à la maintenance depuis la mise en eau en 2009. Pour le périmètre d’Issen, situé dans la même région, les agriculteurs souffrent du même problème de mobilisation des ressources en eau et il est toujours géré par l’Office Régional de Mise en Valeur Agricole du Souss-Massa (ORMVASM). L’objectif de cet article est d’étudier l’effet du mode de gestion du service de l’eau d’irrigation (Partenariat public-privé et gestion publique) sur l’efficacité technique des exploitations agrumicoles dans les deux périmètres. L’estimation de la frontière de production et les scores de l’efficacité technique a été réalisée à partir des données collectées sur le terrain d’un échantillon de 121 exploitations agrumicoles situées dans les deux périmètres. La variabilité de ces scores d’efficacité technique est déterminée par plusieurs facteurs notamment la participation au Programme de Partenariat Public-Privé (PPP) et l’adhésion à des coopératives agricoles. L’estimation de la frontière de production et les scores de l’efficacité technique ont été effectués par le logiciel FRONTIER 4.1, l’analyse de l’efficacité a été réalisée à l’aide du logiciel GRETL en utilisant un modèle Tobit. [less ▲]

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See detailMatériaux, métiers et techniques. Vers une histoire matérielle du chantier de restauration (1830-1914): Introduction au colloque
Houbart, Claudine ULiege; Piavaux, Mathieu; Timbert, Arnaud

Conference (2017, December 14)

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See detailGeneration and Similarity of the Jovian Satellite Footprints
Bonfond, Bertrand ULiege

Conference (2017, December 14)

A long chain of processes connects the satellite auroral footprints to the moon-magnetosphere interaction from which they originate. These processes include Alfvén waves’ generation, filamentation ... [more ▼]

A long chain of processes connects the satellite auroral footprints to the moon-magnetosphere interaction from which they originate. These processes include Alfvén waves’ generation, filamentation, reflection, and bi-directional electron acceleration. The Io footprint is the most studied auroral footprint, because it is both the brightest one and the most isolated from other auroral emissions. It is made of at least three separate spots and an extended tail in the downstream direction. Early detections of the Europa and Ganymede footprints only identified single spots for these footprints, but re-analysis of the large dataset of Hubble Space Telescope images of the Jovian aurorae showed that they can also be made of multiple spots and display a tail. Moreover, the relative motion of these spots as a function of the location of the satellite is consistent with previous observations of the Io footprint, indicating that this dynamics corresponds to universal processes. Furthermore, a number of recent studies focused on the evolution of the brightness of these spots, with timescales ranging from minutes to days, and the signification of these changes will be reviewed. Finally, a discussion of the theoretical models explaining the footprint tails and their properties will be provided. [less ▲]

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See detailFilmer le fou, être saisi: une introduction au cinéma documentaire de Raymond Depardon
Hamers, Jérémy ULiege

Conference (2017, December 13)

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See detailIntroduction du colloque international « Psychopathologie phénoménologique : Dépassement et ouverture »
Englebert, Jérôme ULiege; Adam, Christophe

Conference (2017, December 13)

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Peer Reviewed
See detailProviding MOOCs: A FUN way to enroll students?
Jacqmin, Julien ULiege

Conference (2017, December 13)

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See detailFirst simultaneous observations of local moon aurora and the moon footprints in Jupiter’s polar aurora
Roth, Lorenz; Grodent, Denis ULiege; Gladstone, Randy et al

Conference (2017, December 12)

The interaction of the co-rotating magnetospheric plasma with Jupiter’s Galilean moons generates local perturbations and auroral emissions in the moons’ tenuous atmospheres. Alfvén waves are launched by ... [more ▼]

The interaction of the co-rotating magnetospheric plasma with Jupiter’s Galilean moons generates local perturbations and auroral emissions in the moons’ tenuous atmospheres. Alfvén waves are launched by this local interaction and travel along Jupiter’s field lines triggering various effects that finally lead to the auroral moon footprints far away in Jupiter’s polar regions. Within the large Hubble Space Telescope aurora program in support of the NASA Juno mission (HST GO-14634, PI D. Grodent), HST observed the local aurora at the moons Io and Ganymede on three occasions in 2017 while the Juno Ultraviolet Spectrograph simultaneously observed Jupiter’s aurora and the moon footprints. In this presentation, we will provide first results from the first-ever simultaneous moon and footprint observations for the case of Io. We compare the temporal variability of the local moon aurora and the Io footprint, addressing the question how much of the footprint variability originates from changes at the moon source and how much originates from processes in the regions that lie in between the moon and Jupiter’s poles. [less ▲]

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See detailSome novel applications of virtual reality (VR) in the domain of health
Grogna, David ULiege; Stassart, Céline ULiege; Bragard, Isabelle ULiege et al

Conference (2017, December 12)

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See detailTransnational families, mobility and development: The case of Latin American domestic workers in Europe
Vivas Romero, Maria ULiege

Conference (2017, December 12)

This lecture provides a general overview of Transnational Families in Latin America, highlighting their impact on the social and economic development of sending, destination and in-between countries. In ... [more ▼]

This lecture provides a general overview of Transnational Families in Latin America, highlighting their impact on the social and economic development of sending, destination and in-between countries. In order to do so, it takes as an example the case of Latin American families in Europe. It uses support from empirical cases covered in the literature as well as by the author's own fieldwork with Transnational Families in Belgium, Peru and, Colombia. [less ▲]

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See detailTransient brightening of Jupiter's aurora observed by the Hisaki satellite and Hubble Space Telescope during approach phase of the Juno spacecraft (Invited)
Kimura, Tomoki; Nichols, Jonathan D.; Gray, Rebecca et al

Conference (2017, December 12)

In early 2014, continuous monitoring with the Hisaki satellite discovered transient auroral emission at Jupiter during a period when the solar wind was relatively quiet for a few days. Simultaneous ... [more ▼]

In early 2014, continuous monitoring with the Hisaki satellite discovered transient auroral emission at Jupiter during a period when the solar wind was relatively quiet for a few days. Simultaneous imaging made by the Hubble Space Telescope (HST) suggested that the transient aurora is associated with a global magnetospheric disturbance that spans from the inner to outer magnetosphere. However, the temporal and spatial evolutions of the magnetospheric disturbance were not resolved because of the lack of continuous monitoring of the transient aurora simultaneously with the imaging. Here we report the coordinated observation of the aurora and plasma torus made by Hisaki and HST during the approach phase of the Juno spacecraft in mid-2016. On day 142, Hisaki detected a transient aurora with a maximum total H2 emission power of ~8.5 TW. The simultaneous HST imaging was indicative of a large ‘dawn storm’, which is associated with tail reconnection, at the onset of the transient aurora. The outer emission, which is associated with hot plasma injection in the inner magnetosphere, followed the dawn storm within less than two Jupiter rotations. The monitoring of the torus with Hisaki indicated that the hot plasma population increased in the torus during the transient aurora. These results imply that the magnetospheric disturbance is initiated via the tail reconnection and rapidly expands toward the inner magnetosphere, followed by the hot plasma injection reaching the plasma torus. This corresponds to the radially inward transport of the plasma and/or energy from the outer to the inner magnetosphere. https://doi.org/10.1002/2017GL072912 [less ▲]

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See detailOverview of HST observa7ons of Jupiter’s ultraviolet aurora during Juno orbits 3 to 7
Grodent, Denis ULiege; Bonfond, Bertrand ULiege; Yao, Zhonghua ULiege et al

Conference (2017, December 12)

Jupiter’s permanent ultraviolet auroral emissions have been systematically monitored from Earth orbit with the Hubble Space Telescope (HST) during an 8-month period. The Girst part of this HST large ... [more ▼]

Jupiter’s permanent ultraviolet auroral emissions have been systematically monitored from Earth orbit with the Hubble Space Telescope (HST) during an 8-month period. The Girst part of this HST large program (GO-14634) was meant to support the NASA Juno prime mission during orbits PJ03 through PJ07. The HST program will resume in Feb 2018, in time for Juno’s PJ11 perijove, right after HST’s solar and lunar avoidance periods. HST observations are designed to provide a Jovian auroral activity background for all instruments on-board Juno and for the numerous ground based and space based observatories participating to the Juno mission. In particular, several HST visits were programmed in order to obtain as many simultaneous observations with Juno-UVS as possible, sometimes in the same hemisphere, sometimes in the opposite one. In addition, the timing of some HST visits was set to take advantage of Juno’s multiple crossings of the current sheet and of the magnetic Gield lines threading the auroral emissions. These observations are obtained with the Space Telescope Imaging Spectrograph (STIS) in time-tag mode, they consist in spatially resolved movies of Jupiter’s highly dynamic aurora with timescales ranging from seconds to several days. Here, we present an overview of the present -numerous- HST results. They demonstrate that while Jupiter is always showing the same basic auroral components, it is also displaying an ever-changing auroral landscape. The complexity of the auroral morphology is such that no two observations are alike. Still, in this apparent chaos some patterns emerge. This information is giving clues on magnetospheric processes at play at the local and global scales, the latter being only accessible to remote sensing instruments such as HST. [less ▲]

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See detailA Study of Local Time Variations of Jupiter’s Ultraviolet Aurora using Juno-UVS
Greathouse, Thomas K; Gladstone, Randy; Versteeg, Maarten H et al

Conference (2017, December 12)

Juno’s Ultraviolet Spectrograph (Juno-UVS) offers unique views of Jupiter’s auroras never before obtained in the UV, observing at all local times (unlike HST observations, limited to the illuminated disk ... [more ▼]

Juno’s Ultraviolet Spectrograph (Juno-UVS) offers unique views of Jupiter’s auroras never before obtained in the UV, observing at all local times (unlike HST observations, limited to the illuminated disk). With Juno’s 2-rpm spin period, the UVS long slit rapidly scans across Jupiter observing narrow stripes or swaths of Jupiter’s poles, from 5 hours prior to perijove until 5 hours after perijove. By rotating a mirror interior to the instrument, UVS can view objects from 60 to 120 degrees off the spacecraft spin axis. This allows UVS to map out the entire auroral oval over multiple spins, even when Juno is very close to Jupiter. Using the first 8 perijove passes, we take a first look for local time effects in Jupiter’s northern and southern auroras. We focus on the strength of auroral oval emissions and polar emissions found poleward of the main oval. Some unique polar emissions of interest include newly discovered polar flare emissions that start off as small localized points of emission but quickly (10’s of sec) evolve into rings. These emissions evolve in such a way as to be reminiscent of raindrops striking a pond. [less ▲]

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See detailA comparative examination of auroral acceleration processes at Jupiter and Earth as enabled by the Juno mission to Jupiter
Mauk, Barry; Haggerty, Dennis; Paranicas, Chris et al

Conference (2017, December 12)

Particle distributions observed by Juno’s Energetic Particle Detector Investigation (JEDI) at low altitudes over Jupiter’s polar regions are exceedingly diverse in directionality and in the shapes of ... [more ▼]

Particle distributions observed by Juno’s Energetic Particle Detector Investigation (JEDI) at low altitudes over Jupiter’s polar regions are exceedingly diverse in directionality and in the shapes of their 3-dimensional energy distributions. Asymmetric, bi-directional angular beams with broad energy distributions are often observed near Jupiter’s main auroral oval with considerable variability as to whether upward or downward intensities are the strongest. Signatures of upward and downward magnetic field-aligned potentials, with inferred potentials up to 100’s of kV are sometimes observed, but unlike at Earth, these potentials do not seem to be associated with the strongest discrete-like auroral emission intensities. Particle distributions have similarities to those observed at Earth over the various phenomenological auroral emission regions, but they are observed in unexpected places with respect to the strongest auroral emission regions, and the jovian distributions are much more energetic. We present a comparative examination of auroral acceleration processes observed at Earth and Jupiter in relation to the respective auroral emission regions. [less ▲]

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See detailProbing Jupiter’s auroral radio sources with Juno
Imai, M.; Kurth, W. S.; Hospodarsky, G. B. et al

Conference (2017, December 12)

Jupiter is the major auroral radio source in our solar system, producing Jovian low-frequency radio emissions in a broad frequency range of 10 kHz to 40 MHz from both north and south polar regions of the ... [more ▼]

Jupiter is the major auroral radio source in our solar system, producing Jovian low-frequency radio emissions in a broad frequency range of 10 kHz to 40 MHz from both north and south polar regions of the planet. These sporadic nonthermal bursts have been monitored with the radio and plasma wave instrument (Waves) aboard the spinning Juno spacecraft in polar orbit about Jupiter since July 5, 2016. The Waves instrument is composed of one electric dipole antenna, one magnetic search coil sensor, and three on-board receivers that record the electric fields of waves from 50 Hz to 41 MHz and the magnetic fields of waves from 50 Hz to 20 kHz. Juno has three advantageous methods to determine the radio source locations and the beaming properties for the Jovian low-frequency radio emissions: (1) identifying emission frequency close to the local gyrofrequency at the source with in situ particle measurements through Juno's perijove surveys from pole to pole, (2) the spin-modulated spectral density recorded with Juno Waves to estimate the direction of arrival of incoming waves, and (3) with the aid of the Jovian radio beaming model, performing stereoscopic radio observations with Juno, Cassini, STEREO A, WIND, and Earth-based radio telescopes (e.g., LWA1 in New Mexico, USA, and NDA in Nançay, France) or investigating the statistical characteristics of Jovian radio occurrence by Juno. Because the three individual methods are self-consistent and complement each other, Juno observations are useful for determining the Jovian radio beam parameters and radio source locations, which can be traced along magnetic field lines onto Jupiter's atmosphere and further compared with the UV aurora taken by the Hubble Space Telescope. In this talk, we give a brief overview of early radio astronomy results from Juno, providing the recent results from these extended studies by means of the three methods. [less ▲]

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See detailVersatile Catalyst Materials Fabrication by Low-Pressure Plasma Treatments
Busby, Yan; da Silva Pires, Mathieu; Haye., Emile et al

Conference (2017, December 12)

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See detailPoliticizing Europe: Normative Conditionality in the EU Institutions’ Interpretations of Europe(-anness)
Niessen, Annie ULiege

Conference (2017, December 12)

“Europe” and “Europeanness” have always been key notions in the construction process of the European Union (EU). Indeed, Article 49 of the Treaty on the European Union enshrines as primary condition that ... [more ▼]

“Europe” and “Europeanness” have always been key notions in the construction process of the European Union (EU). Indeed, Article 49 of the Treaty on the European Union enshrines as primary condition that a State must be “European” to be eligible for EU membership. However, there is neither a consensual nor an official definition of this term which can take on various meanings, broadly ranging from geographical to cultural ones. This polysemy has driven the EU institutions to provide their own interpretations, especially within the framework of enlargements and membership applications. Building on an analysis of institutional documents, the paper investigates how the notions of “Europe” and “Europeanness” have been interpreted since the inception of the EU and, in fine, politicized through the implementation of normative conditions. This analysis eventually led to a new, up-to-date model of the conditions that a State has to meet to be considered “European”, which further highlights the institutional conceptualization of Europe(-anness). [less ▲]

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See detailAn overview of the first year of observations of Jupiter’s auroras by Juno-UVS with multi-wavelength comparisons
Gladstone, Randy; Greathouse, Thomas K; Versteeg, Maarten H et al

Conference (2017, December 12)

Juno’s Ultraviolet Spectrograph (Juno-UVS) has observed the Jovian aurora during eight perijove passes. UVS typically observes Jupiter for 10 hours centered on closest approach in a series of swaths, with ... [more ▼]

Juno’s Ultraviolet Spectrograph (Juno-UVS) has observed the Jovian aurora during eight perijove passes. UVS typically observes Jupiter for 10 hours centered on closest approach in a series of swaths, with one swath per Juno spin (~30s). During this period the spacecraft range to Jupiter’s aurora decreases from ~6 RJ to ~0.3 RJ (or less) in the north, and then reverses this in the south, so that spatial resolution changes dramatically. A scan mirror is used to target different features or raster across the entire auroral region. Juno-UVS observes a particular location for roughly 17 ms/swath, so the series of swaths provide snapshots of ultraviolet auroral brightness and color. A variety of forms and activity levels are represented in the Juno-UVS data–some have been described before with HST observations, but others are new. One interesting result is that the color ratio, often used as a proxy for energetic particle precipitation, may instead (in certain regions) indicate excitation of H2 by low-energy ionospheric electrons. Additional results from comparisons with simultaneous observations at x-ray, visible, and near-IR wavelengths will also be presented. [less ▲]

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See detailCassini UVIS Observations of Saturn during the Grand Finale Orbits (Invited)
Pryor, Wayne R; Esposito, Larry W; West, Robert et al

Conference (2017, December 11)

In 2016 and 2017, the Cassini Saturn orbiter executed a final series of high inclination, low-periapsis orbits ideal for studies of Saturn's polar regions. The Cassini Ultraviolet Imaging Spectrograph ... [more ▼]

In 2016 and 2017, the Cassini Saturn orbiter executed a final series of high inclination, low-periapsis orbits ideal for studies of Saturn's polar regions. The Cassini Ultraviolet Imaging Spectrograph (UVIS) obtained an extensive set of auroral images, some at the highest spatial resolution obtained during Cassini's long orbital mission (2004-2017). In some cases, two or three spacecraft slews at right angles to the long slit of the spectrograph were required to cover the entire auroral region to form auroral images. We will present selected images from this set showing narrow arcs of emission, more diffuse auroral emissions, multiple auroral arcs in a single image, discrete spots of emission, small scale vortices, large-scale spiral forms, and parallel linear features that appear to cross in places like twisted wires. Some shorter features are transverse to the main auroral arcs, like barbs on a wire. UVIS observations were in some cases simultaneous with auroral observations from the Hubble Space Telescope Space Telescope Imaging Spectrograph (STIS) that will also be presented. UVIS polar images also contain spectral information suitable for studies of the auroral electron energy distribution. The long wavelength part of the UVIS polar images contains a signal from reflected sunlight containing absorption signatures of acetylene and other Saturn hydrocarbons. The hydrocarbon spatial distribution will also be examined. [less ▲]

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See detailRecent evolution of the coastline in the Gulf of Guinea. Example of Togo and Benin (2000-2016)
Ozer, Pierre ULiege; Hountondji, Yvon-Carmen; De Longueville, Florence

Conference (2017, December 11)

The land-sea interface is an extremely fragile environment. On a global scale, coastlines are threatened by a multitude of factors sometimes natural and mostly anthropogenic. Thus, in addition to the ... [more ▼]

The land-sea interface is an extremely fragile environment. On a global scale, coastlines are threatened by a multitude of factors sometimes natural and mostly anthropogenic. Thus, in addition to the disruptions to coastal areas by port facilities, dams, sediment sampling on the beach or urban sprawl, there are the consequences of climate change, including rising sea levels. Studies conducted in West Africa show important shoreline erosion processes in recent years with many socio-economic consequences. [...] [less ▲]

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See detailVulnérabilité sanitaire et environnementale dans les quartiers inondables de la commune de Cap-Haïtien, Haïti
Bilomba Ngandu, Pontien; Von Frenckell, Marianne ULiege; Ozer, Pierre ULiege

Conference (2017, December 11)

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See detailContribution des Systèmes d’Information Géographique pour la cartographie des zones à risques d’inondation à Yaoundé
Zogning Moffo, Maurice Olivier; Ozer, Pierre ULiege; Dewals, Benjamin ULiege

Conference (2017, December 11)

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See detailVulnérabilité aux inondations dans le contexte des changements climatiques à New-Bell Ngangue, un quartier planifié de la ville de Douala, Cameroun
Amanejieu, Amélie; Feumba, Rodrigue Aimé; Ngoufo, Roger et al

Conference (2017, December 11)

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See detail« Cap-Haïtien » or « How to ‘construct’ a flood risk in a decade »
Gracius, Gracia Joseph; Ozer, Pierre ULiege

Conference (2017, December 11)

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See detailMagnetic shielding of open and semi-closed tubes made of bulk superconductors : the role of a cap
Vanderbemden, Philippe ULiege; Wera, Laurent ULiege; Hogan, Kevin ULiege et al

Conference (2017, December 11)

Amongst the range of prospective applications for bulk superconductors, the shielding of high magnetic fields at low frequency is extremely promising. Unlike conventional high permeability ferromagnetic ... [more ▼]

Amongst the range of prospective applications for bulk superconductors, the shielding of high magnetic fields at low frequency is extremely promising. Unlike conventional high permeability ferromagnetic materials which exhibit a relatively low saturation magnetization (e.g. µ0Msat ~ 0.75 T for mumetal), superconductors do not suffer from this drawback. They are therefore well suited to shield magnetic flux densities above 1 tesla. This can be achieved by hollow bulk superconductors of cylindrical geometry. The shielding efficiency and shielded volume are both strongly improved when the hollowed tube is closed at one extremity. As an example, we showed recently [1] that YBa2Cu3O7 (YBCO) tubes of ~ 10 mm inner diameter closed at one extremity and engineered by a buffer-aided top seeded melt growth fabrication process were able to attenuate axial flux densities of 1.5 T by a factor of 100 at 20 K. Such record performances are partly due to the presence of a cap at one extremity. The aim of the present work is to examine further and understand the influence of a cap on the shielding properties for various configurations. In this communication we investigate the shielding properties of hollow and semi-closed bulk superconducting tubes at 77 K. For the semi-closed configuration, we compare situations the cap is either placed against the extremity (with a small controllable gap between them) or welded naturally. The field to be shielded is either parallel or perpendicular to the main axis of the tube. Both YBCO tubes produced by buffer-aided top seeded melt growth and commercial Bi-2223 tubes are studied. The experimental results are compared to finite element numerical modelling carried out either in 2D (for the axial configuration) or 3D (for the transverse configuration). In the axial configuration, the results show that a small gap between the tube and the cap is not detrimental to the shielding properties. We also show that the shielded volume can be easily enhanced by increasing the thickness of the cap or its critical current density. In the transverse configuration, the results point out the crucial role of the superconducting joint between the tube and the cap. The need for a superconducting joint depends therefore on the main direction of the magnetic field to be shielded. References: [1] L. Wéra. et al., IEEE. Trans. Appl. Supercond. 27 (2017) 6800305 [less ▲]

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See detailRéflexions sur l'espace public oppositionnel à partir d'Arlette Farge et d'Hannah Arendt
Glorie, Caroline ULiege

Conference (2017, December 11)

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See detailRisk management in Ivory Coast: case study of population evictions in Port-Bouët, Abidjan
Comoe, Boua Raymond; Ozer, Pierre ULiege

Conference (2017, December 11)

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See detailExposition et vulnérabilité face aux risques d’inondation au Burkina Faso : Cas de la ville de Dori
Tomety, Yaovi Djivénou; Dewals, Benjamin ULiege; Ozer, Pierre ULiege

Conference (2017, December 11)

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See detailPeople moved and will move again
Gemenne, François ULiege; De Longueville, Florence; De Bruyckere, Luka ULiege et al

Conference (2017, December 11)

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