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See detailValidity and reliability of the French translation of the VISA-A questionnaire
Bruyère, Olivier ULiege; Kaux, Jean-François ULiege; Croisier, Jean-Louis ULiege

in European Journal of Sports Medicine (2017, September), 5(Supplement 1), 64

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See detailIs a Memoryless Motion Detection Truly Relevant for Background Generation with LaBGen?
Laugraud, Benjamin ULiege; Van Droogenbroeck, Marc ULiege

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

The stationary background generation problem consists in generating a unique image representing the stationary background of a given video sequence. The LaBGen background generation method combines a ... [more ▼]

The stationary background generation problem consists in generating a unique image representing the stationary background of a given video sequence. The LaBGen background generation method combines a pixel-wise median filter and a patch selection mechanism based on a motion detection performed by a background subtraction algorithm. In our previous works related to LaBGen, we have shown that, surprisingly, the frame difference algorithm provides the most effective motion detection on average. Compared to other background subtraction algorithms, it detects motion between two frames without relying on additional past frames, and is therefore memoryless. In this paper, we experimentally check whether the memoryless property is truly relevant for LaBGen, and whether the effective motion detection provided by the frame difference is not an isolated case. For this purpose, we introduce LaBGen-OF, a variant of LaBGen leverages memoryless dense optical flow algorithms for motion detection. Our experiments show that using a memoryless motion detector is an adequate choice for our background generation framework, and that LaBGen-OF outperforms LaBGen on the SBMnet dataset. We further provide an open-source C++ implementation of both methods at http://www.telecom.ulg.ac.be/labgen. [less ▲]

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See detailDifferentiating pre- and post-grazing pasture heights using a 3D camera: a prospective approach
Andriamandroso, Andriamasinoro ULiege; Castro Muñoz, Eloy ULiege; Blaise, Yannick ULiege et al

in Berckmans, Daniel; Keita, Alassane (Eds.) Precision Livestock Farming ‘17 (2017, September)

Grasslands management involves the monitoring of both animal and plant components. Recent precision livestock farming developments have focused on high-rate monitoring of grazing animals to enhance ... [more ▼]

Grasslands management involves the monitoring of both animal and plant components. Recent precision livestock farming developments have focused on high-rate monitoring of grazing animals to enhance livestock productivity and welfare. The evolution of grass resource during the grazing process is not being overlooked by graziers and researchers, but grass characteristics, such as height, dry matter content, productivity or density, are still measured using low frequency and sometimes destructive and time-consuming methods; such as quadrat, sward-sticks, rising plate meters. This study investigated the potential of using 3D cameras to assess sward physical characteristics. Main objectives were: (1) to define the correct way to capture images, particularly the camera position above the ground and, (2) to assess if differences in sward height were detectable. Couples of images differing in grass height were captured on the same spot with a 3D camera at different above-ground heights (30, 40, 50 cm) on a ryegrass-white clover pasture. Pregrazing height was 15cm and post-grazing sward was simulated by cutting at 2 cm. Histograms of intensity performed on greyscale images showed differences between pre- and post-grazing sward. As expected, overall darker pixels were observed for pre-grazing images (p<0.01) and whiter pixels for post-grazing images (p<0.01), indicating longer distances consistent with lower forage biomass. Images taken at a distance of 30 and 40 cm could identify these differences. Further developments require improving the calibration of the camera and developing image analysis method to estimate more plant characteristics such as density or dry matter content. [less ▲]

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See detailisokinetic profile of subjects with proximal patellar tendinopathy
Croisier, Jean-Louis ULiege; Libertiaux, Vincent ULiege; Kaux, Jean-François ULiege

in European Journal of Sports Medicine (2017, September), 5(Supplement 1), 65-66

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See detailLa normalisation européenne après l’arrêt James Elliott Construction du 27 octobre 2016 : la Cour de justice de l’Union européenne a-t-elle élargi ses compétences d’interprétation ?
Van Cleynenbreugel, Pieter ULiege; Demoulin, Iris ULiege

in Revue de la Faculté de Droit de l'Université de Liège (2017), (2),

Malgré son importance pratique, le processus de normalisation européenne a jusqu’à présent été relativement épargné par la Cour de justice. Toutefois, dans son arrêt James Elliott Construction du 27 ... [more ▼]

Malgré son importance pratique, le processus de normalisation européenne a jusqu’à présent été relativement épargné par la Cour de justice. Toutefois, dans son arrêt James Elliott Construction du 27 octobre 2016, la Cour s’est penchée directement sur le statut juridique des normes techniques européennes. Confirmant que l’interprétation des normes techniques harmonisées, actes non contraignantes, peut être soumise à un examen jurisprudentiel, la Cour a assimilé ces normes adoptées par des organismes privés à des actes des institutions de l’Union européenne. Cet article analyse les impacts de cet arrêt sur le cadre institutionnel de la normalisation européenne. Une telle analyse permettra de conclure que la Cour a interprété ses compétences d’interprétation extensivement afin de rendre possible plus directe son implication dans cette matière. [less ▲]

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See detailMéthodes de recherche qualitative
Lejeune, Christophe ULiege

Learning material (2017)

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See detailIntroduction au droit pénal et à la criminologie
Masset, Adrien ULiege

Learning material (2017)

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See detailPREVALENCE OF CERVICAL DYSFUNCTION IN PATIENTS WITH EPICONDYLALGIA: A PRELIMINARY STUDY
Colman, David ULiege; Demoulin, Christophe ULiege; Neumann, Valentin et al

Conference (2017, September)

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See detailATTITUDES AND BELIEFS CONCERNING LOW BACK PAIN AMONG PHYSIOTHERAPY STUDENTS IN BELGIUM AND THE NETHERLANDS: A CROSS-SECTIONAL STUDY
Leysen, Marijke; Nijs, Jo; Van Wilgen, C.P. et al

Conference (2017, September)

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See detailThe impact of Paul Philippot on the theory and history of conservation/restoration
Stoner, Joyce; Verbeeck, Muriel ULiege

in Bridgland, Janet (Ed.) Linking Past and Future (2017, September)

Paul Philippot (1925–2016) was an influential conservation theoretician and author in addi- tion to serving as an important leader or col- laborator with major conservation institutions in Europe (ICR ... [more ▼]

Paul Philippot (1925–2016) was an influential conservation theoretician and author in addi- tion to serving as an important leader or col- laborator with major conservation institutions in Europe (ICR, ICCROM, IIC, UNESCO, ICOM, etc.). He was an art historian born into a Belgian fam- ily of conservator-restorers. The authors were privileged to interview him in 1997, 2009 and 2015. Verbeeck discusses Philippot’s relation to and reinterpretation of the philosophy of Cesare Brandi, his definition of restoration as both an intellectual judgment and a critical act, and his influence on the establishment of an interdis- ciplinary curriculum for pioneer training pro- grams. Stoner describes Philippot’s emphasis on the impact of language on communication of philosophical concepts in his 1997 interview in addition to key points in his publications once they were available in English, especially his de- scription of patina as the normal effect that time has on material and the search for equilibrium in cleaning paintings. [less ▲]

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See detailA fast and simple method for simultaneous measurements of 25(OH)D, 24,25(OH)2D and the Vitamin D Metabolite Ratio (VMR) in serum samples by LC-MS/MS (powerpoint)
Fabregat Cabello, Neus ULiege; Farre Segura, Jordi ULiege; Huyghebaert, Loreen ULiege et al

Scientific conference (2017, September)

We present here a rapid, easy, reliable and cost-effective method for the quantification of 25-hydryxoyvitamin D2 and D3, epi-25-hydroxyyvitamin D3 and 24,25-dihydroxyvitamin D3 by LC-MS/MS in serum ... [more ▼]

We present here a rapid, easy, reliable and cost-effective method for the quantification of 25-hydryxoyvitamin D2 and D3, epi-25-hydroxyyvitamin D3 and 24,25-dihydroxyvitamin D3 by LC-MS/MS in serum samples. The proposed methodology has been strongly validated with both NIST and Labquality materials, obtaining mean intra-assay and inter-assay imprecision lower than 6 and 6.4% and mean recoveries within 95-104%. Besides we have compared satisfactorily samples from Vitamin D Standardization Program (n=80) with reference values and patient samples (n=281) with our reference LC-MS/MS method. The proposed methodology is prepared to be used in routine testing and permits the calculation of the Vitamin D Metabolite Ratio (VMR). [less ▲]

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See detailL’Etat dans tous ses états
Wintgens, Sophie ULiege; Weerts, Audrey ULiege

Book published by P.I.E. Peter Lang (2017)

Depuis l’avènement de l’État moderne au 17ème siècle, l’État a connu de nombreuses évolutions. De l’idée d’État-nation en passant par celle d’État-providence, le concept s’est imposé dans nos sociétés ... [more ▼]

Depuis l’avènement de l’État moderne au 17ème siècle, l’État a connu de nombreuses évolutions. De l’idée d’État-nation en passant par celle d’État-providence, le concept s’est imposé dans nos sociétés contemporaines. Toutefois, son affirmation en tant que forme d’organisation du pouvoir politique s’accompagne également de questionnements croissants. L’État a-t-il la capacité de répondre aux enjeux nationaux et internationaux actuels ? Soumis à un grand nombre de contraintes tant internes qu’externes, dispose-t-il encore d’une marge de manœuvre ? Est-il en voie de transformation, voire de disparition ? Cet ouvrage collectif a pour objectif d’apporter un éclairage original à ces interrogations. Construit autour de trois grands axes de réflexion mettant tous les aspects de l’État en question, il est un terrain d’échange entre plusieurs disciplines des sciences sociales. Mêlant réflexions théoriques et études de cas, il vise à enrichir le débat sur les évolutions de l’État dans une perspective pluridisciplinaire. [less ▲]

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See detailAnticoherence measures for pure spin states
Baguette, Dorian ULiege; Martin, John ULiege

in Physical Review A (2017), 96

The set of pure spin states with vanishing spin expectation value can be regarded as the set of the less coherent pure spin states. This set can be divided into a finite number of nested subsets on the ... [more ▼]

The set of pure spin states with vanishing spin expectation value can be regarded as the set of the less coherent pure spin states. This set can be divided into a finite number of nested subsets on the basis of higher order moments of the spin operators. This subdivision relies on the notion of anticoherent spin state to order t : A spin state is said to be anticoherent to order t if the moment of order k of the spin components along any directions are equal for k = 1,2, . . . ,t . Most spin states are neither coherent nor anticoherent, but can be arbitrary close to one or the other. In or- der to quantify the degree of anticoherence of pure spin states, we introduce the notion of anticoherence measures. By relying on the mapping between spin-j states and symmetric states of 2j spin 1/2 (Majorana representation), we present a systematic way of constructing anticoherence measures to any order. We briefly discuss their connection with measures of quantum coherence. Finally, we illustrate our measures on various spin states and use them to investigate the problem of the existence of anticoherent spin states with degenerated Majorana points. [less ▲]

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See detailA First Look at the Prevalence and Persistence of Middleboxes in the Wild
Edeline, Korian ULiege; Donnet, Benoît ULiege

in International Teletraffic Congress (2017, September)

Recent years have seen an uprise in the development of middleboxes functionalities (CGNATs, proxies, accelerators, etc), participating so in the ossification of the Internet. In parallel, various ... [more ▼]

Recent years have seen an uprise in the development of middleboxes functionalities (CGNATs, proxies, accelerators, etc), participating so in the ossification of the Internet. In parallel, various solutions have been developed to detect or circumvent unwanted middleboxes interferences such as UDP-based middlebox-proof transports (Google's QUIC, PLUS), middlebox-proof extensions to TCP (HICCUPS, TCPcrypt), and middlebox traversal mechanisms (STUN, ICE, PLUS). All those solutions make the assumption of ubiquitous middleboxes. However, a view of their actual deployment in the wild, in IPv4 wired networks, is missing. In particular, knowing how autonomous systems (ASes) deploy middleboxes in terms of prevalence and persistence would provide additional relevant information to Internet topology models. In this paper, we aim at filling this gap. Based on a large-scale measurement campaign, we highlight different characteristics of middlebox deployment within ASes to elicit middleboxes profiles. [less ▲]

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See detailArticle 21(3) of the ICC Statute and 'Internationally Recognised Human Rights' as a Source of Mandatory Judicial Dialogue
Deprez, Christophe ULiege

in Lobba, Paolo; Mariniello, Triestino (Eds.) Judicial Dialogue on Human Rights: The Practice of International Criminal Tribunals (2017)

It is a common view that a strict distinction should be maintained between human rights case law and human rights law proper. The authority of human rights norms would be general, while human rights ... [more ▼]

It is a common view that a strict distinction should be maintained between human rights case law and human rights law proper. The authority of human rights norms would be general, while human rights jurisprudence would only consist of the casuistic application of these norms to a specific case. This chapter seeks to nuance this view, with specific reference to the cross-fertilisation phenomenon before the International Criminal Court. It shows that, in its early practice, the permanent ICC has repeatedly relied on human rights case law, not because it was merely choosing to do so, but more particularly, because it considered the relevant findings to be binding as 'internationally recognised human rights' in the meaning of Article 21(3) of the Rome Statute. By focusing on these instances of mandatory reference to the practice of human rights bodies, this chapter also contributes to the existing literature on 'internationally recognised human rights', through an account of the ICC's own perspective on this crucial notion. [less ▲]

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See detailGéopolitique et géostratégie, quand théories et recommandations se confondent
Regnier, Cindy ULiege

in Revue de Droit (2017), 2

Au 19e siècle Mackinder définit une dichotomie entre land et sea powers. D’après l’auteur, ces deux entités sont destinées à s’opposer et entrer compétition pour le Heartland, zone de terre étendue et non ... [more ▼]

Au 19e siècle Mackinder définit une dichotomie entre land et sea powers. D’après l’auteur, ces deux entités sont destinées à s’opposer et entrer compétition pour le Heartland, zone de terre étendue et non accessible par la mer. Ce Heartland, situé sur une grande partie du territoire russe et s’étendant en Asie centrale, est actuellement toujours au cœur des tensions entre les grandes puissances. Ainsi des théoriciens tant américains que russes vont reprendre les théories de Mackinder pour analyser mais aussi conseiller la politique étrangère de leurs États. Dès lors, ces auteurs vont appuyer l’importance pour leurs États de maintenir ou reprendre l’hégémonie sur le Heartland. Cet article se penche donc sur l’utilisation, par des académiques contemporains, de la théorie de Mackinder et les recommandations qui en découlent. Nous argumentons que ces recommandations inciteraient les États à émettre des actions qui confirmeraient de facto la théorie et conduiraient dès lors à une escalade de tension entre les États. [less ▲]

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