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See detailLa dermatoporose, un "vintage" de l'atrophodermie et de la "peau transparente".
FRANCHIMONT, Claudine ULg; Hermanns, J.F.; Hermanns-Lê, Trinh ULg et al

in Revue Médicale de Liège (2014), 69

Le vieillissement de la peau se marque à terme par une atrophodermie, parfois sévère. La corticothérapie, qu’elle soit systémique ou topique, exerce un effet atrophiant qui copie l’effet du grand âge. Cet ... [more ▼]

Le vieillissement de la peau se marque à terme par une atrophodermie, parfois sévère. La corticothérapie, qu’elle soit systémique ou topique, exerce un effet atrophiant qui copie l’effet du grand âge. Cet état d’atrophodermie a été décrit comme la «peau transparente» il y a une quarantaine d’années, et il a reçu plus récemment la nouvelle dénomination de dermatoporose. Il est connu de longue date que cet état entraîne des conséquences cliniques parfois majeures qui conduisent à des lésions diverses sous forme de purpura de Bateman, de cicatrices stellaires, et de plaies faisant suite à des traumatismes mineurs. [less ▲]

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See detailL'affirmation de l'Occident (XIe-XVIIIe s.)
Jadoulle, Jean-Louis ULg; Georges, Jean

Book published by Didier Hatier - 2ème éd. (2014)

Cet ouvrage constitue la nouvelle édition du manuel scolaire édité, sous le même titre, en 2006. Il est toutefois assorti, à présent, d'un manuel numérique enrichi entièrement nouveau.

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See detailA Supervised Machine Learning Approach to Variable Branching in Branch-And-Bound
Marcos Alvarez, Alejandro ULg; Louveaux, Quentin ULg; Wehenkel, Louis ULg

E-print/Working paper (2014)

We present in this paper a new approach that uses supervised machine learning techniques to improve the performances of optimization algorithms in the context of mixed-integer programming (MIP). We focus ... [more ▼]

We present in this paper a new approach that uses supervised machine learning techniques to improve the performances of optimization algorithms in the context of mixed-integer programming (MIP). We focus on the branch-and-bound (B&B) algorithm, which is the traditional algorithm used to solve MIP problems. In B&B, variable branching is the key component that most conditions the efficiency of the optimization. Good branching strategies exist but are computationally expensive and usually hinder the optimization rather than improving it. Our approach consists in imitating the decisions taken by a supposedly good branching strategy, strong branching in our case, with a fast approximation. To this end, we develop a set of features describing the state of the ongoing optimization and show how supervised machine learning can be used to approximate the desired branching strategy. The approximated function is created by a supervised machine learning algorithm from a set of observed branching decisions taken by the target strategy. The experiments performed on randomly generated and standard benchmark (MIPLIB) problems show promising results. [less ▲]

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See detailUse of Time- and Frequency-Domain Approaches for Damage Detection in Civil Engineering Structures
Nguyen, Viet Ha; Mahowald, Jean; Maas, Stefan et al

in Shock and Vibration (2014), 2014

The aim of this paper is to apply both time- and frequency-domain-based approaches on real-life civil engineering structures and to assess their capability for damage detection. The methodology is based ... [more ▼]

The aim of this paper is to apply both time- and frequency-domain-based approaches on real-life civil engineering structures and to assess their capability for damage detection. The methodology is based on Principal Component Analysis of the Hankel matrix built from output-only measurements and of Frequency Response Functions. Damage detection is performed using the concept of subspace angles between a current (possibly damaged state) and a reference (undamaged) state. The first structure is the Champangshiehl Bridge located in Luxembourg. Several damage levels were intentionally created by cutting a growing number of prestressed tendons and vibration data were acquired by the University of Luxembourg for each damaged state. The second example consists in reinforced and prestressed concrete panels. Successive damages were introduced in the panels by loading heavy weights and by cutting steel wires. The illustrations show different consequences in damage identification by the considered techniques. [less ▲]

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See detailValidation of a SPH model for free surface flows
Goffin, Louis ULg; Erpicum, Sébastien ULg; Dewals, Benjamin ULg et al

Conference (2014)

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See detailAlchemy and Art Technology in German Medieval and Early Modern Recipe Books
Neven, Sylvie ULg

in Dupré, Sven (Ed.) Laboratory of Art (2014)

In the Middle Ages and premodern period, artisanal knowledge was transmitted via collections of recipes often grouped concomitantly with alchemical texts and instructions. Except for some very well-known ... [more ▼]

In the Middle Ages and premodern period, artisanal knowledge was transmitted via collections of recipes often grouped concomitantly with alchemical texts and instructions. Except for some very well-known artistic treatises, such as those by Eraclius or the Schedula diversarum artium, attributed to Theophilus, detection and identification of alchemical content within recipe books has been rare and fraught with difficulty. In a broad sense, alchemy could be defined as the ‘art of transmutation’, referring to the perfection of base or impure matter (often metal or stone) into perfect substances. In this context, alchemical procedures rely on artisanal or craft practices. Thus, any overlap between alchemy and art-technological procedures can be explained by the use of various identical materials and substances. Both are concerned with the description of colours—especially in regard to processes of change, the making of pigments, the production of artificial gemstones, the imitation of gold and silver and the transmutation of materials. Both require procedures involving precise and specifically defined actions, prescriptions and ingredients. So both use identical rhetorical recipe formulations that reflect a ‘step by step’ procedure. Assuming that alchemical and artistic texts have the same textual format, raises the question: did they also have the same methods of production and reception? Using a corpus of about forty manuscripts produced in Northern Europe between the fourteenth and the sixteenth centuries, this paper investigates the authorship and the context of production behind these writings, and scrutinizes the process of their compilation and dissemination. This serves, on a variety of levels, to elucidate information about their former nature and use. Finally, this paper examines the various ways alchemical and artisanal recipes were embedded within recipe books. It also proposes some clues to help in locating, identifying and demarcating this type of alchemical writing within the literature of recipes. [less ▲]

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See detailDes rapports entre le marché et la puissance publique: de l'Etat-Providence à l'Etat régulateur
Thirion, Nicolas ULg

in Thirion, Nicolas (Ed.) Crise et droit économique (2014)

L'étude vise à montrer le changement de philosophie sous-jacente au dispositif juridique applicable aux rapports entre le marché et l'Etat depuis la fin des Trente Glorieuses. De l'Etat-Providence, on ... [more ▼]

L'étude vise à montrer le changement de philosophie sous-jacente au dispositif juridique applicable aux rapports entre le marché et l'Etat depuis la fin des Trente Glorieuses. De l'Etat-Providence, on serait passé à l'Etat régulateur, davantage influencé par les écoles ordo-libérale et néo-libérale. [less ▲]

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See detailUn contrat de rivière en zone périurbaine, la rivière Lukaya à Kinshasa, RDC.
Rosillon, Francis ULg; Jacmain, Céline

Poster (2013, December 19)

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See detailRecycling and sustainable development
Courard, Luc ULg

Scientific conference (2013, December 17)

Conditions for developing recycling in good conditions (environmental, economical and social)

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See detailDrowsiness monitoring for road safety
Wertz, Jérôme ULg; François, Clémentine ULg; Verly, Jacques ULg

Conference (2013, December 13)

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See detailEculizumab (ECU) Inhibits Thrombotic Microangiopathy (TMA) and Improves Renal Function In Adult Patients (Pts) With Atypical Hemolytic Uremic Syndrome (aHUS)
Fakhouri, Fadi; Hourmant, Maryvonne; Cataland, Spero et al

Poster (2013, December 08)

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See detailDevelopment of anti-HPV lipoplexes for the treatment of cervical cancer
Lechanteur, Anna ULg; Furst, Tania ULg; Evrard, Brigitte ULg et al

Conference (2013, December 03)

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See detailCT findings of an intra-abdominal metastatic sertoli cell tumor in a dog
Taylor, Olivia; Hamaide, Annick ULg; Mercier, Elise ULg et al

Poster (2013, December 01)

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See detailÉtude des conditions de vie et d’accessibilité aux soins de santé de qualité des populations en situation de précarité, dans la zone de sante de Bandalungwa à Kinshasa (Congo) grâce à la micro-assurance santé en 2008.
Manzambi Kuwekita, Joseph ULg; Guillaume, Michèle ULg; Balula Semutsari, Marie-Paule et al

in Journal d’Épidémiologie et de Santé Publique (2013), 12

This study investigates the conditions under which populations living in poverty are able to accumulate savings and contribute to a micro-insurance health system to improve their living standards and ... [more ▼]

This study investigates the conditions under which populations living in poverty are able to accumulate savings and contribute to a micro-insurance health system to improve their living standards and access quality health care. We carried out a comprehensive survey in 2008 in the Bandalungwa health zone of Kinshasa. It was based on the Manzambi Model for health financing and the extension of social protection to the poor in developing countries. Each day, the leader of the group hands the members’ contributions to a loan officer. Two micro -entrepreneurs (3%) paid by these funds have disappeared, with the help of a loan officer. The main results of this study show that of all those contributing to the scheme, 78.1% improved their living conditions. 50% were able to start saving while 71.9% of these regularly contributed 1 US$ to the micro-insurance fund. 40.6% regularly contributed 1 US$ to the health micro-insurance fund, 88.5% of these improved their access to health care. When micro-credit promotes significant compulsory savings, the obligatory contribution of one dollar a day to the micro-insurance fund becomes easier and results in improved access to care (p<0.000) for household members. 68% of micro-entrepreneurs who paid their dues improved their purchasing power. If we want to keep people out of poverty, we must find a way to help them with these compulsory savings. The results of this study show that micro-entrepreneurs who have improved their living conditions also saw an improvement in their access to care (86.4%) (p=0.003). The Manzambi model provides a sustainable solution to the problem of health financing and extends social protection to fragile populations in developing countries. It also brings us closer to the objective of "health for all". [less ▲]

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