Publications ORBi OA
Bookmark and Share    
Full Text
See detailRencontrer, avec Donna Haraway un animal
Despret, Vinciane ULg

in Critique (2009), 747-748(8-9), 747-759

When Species Meet, de Donna Haraway, est un livre qui se veut fidèle à ce qu’il nous propose, à ce qu’il nous demande, à ce qu’il instruit dans la pluralité des significations qu’on peut donner à ce terme ... [more ▼]

When Species Meet, de Donna Haraway, est un livre qui se veut fidèle à ce qu’il nous propose, à ce qu’il nous demande, à ce qu’il instruit dans la pluralité des significations qu’on peut donner à ce terme : penser, faire exister, agir, et faire agir ce dont il parle, les rencontres entre espèces. Il n’y a rien d’innocent non plus dans cette relation entre espèces qui brouille les catégories ; il faut y voir la chance de « devenir ensemble », « avec quelque grâce ». [less ▲]

Detailed reference viewed: 138 (17 ULg)
Full Text
See detailIntroduction à l'utilisation du logiciel Statistica
Donneau, Anne-Françoise ULg

Learning material (2009)

Detailed reference viewed: 263 (48 ULg)
Full Text
See detailRisk assessment of laboratories involving the manipulation of unconventional agents causing TSE
Leunda-Casi, A.; Pauwels, K.; Herman, Philippe et al

Report (2009)

The present document aims at summarizing the biosafety recommendations and the containment level required for laboratories where animal and human tissues potentially contaminated by a TSE (Transmissible ... [more ▼]

The present document aims at summarizing the biosafety recommendations and the containment level required for laboratories where animal and human tissues potentially contaminated by a TSE (Transmissible Spongiform Encephalitis) causing agent are manipulated. A particular attention will be paid to decontamination procedures, as the prion protein1 is remarkably resistant to conventional inactivation methods and may stay infectious for long periods of time. We will discuss large surface decontamination procedures of facilities handling TSE causing agents. This is of specific concern for laboratories that have been manipulating TSE causing agents, sometimes for years, but wish today dedicate the facilities to another activity. [less ▲]

Detailed reference viewed: 21 (0 ULg)
Full Text
Peer Reviewed
See detailThe Dusty View of DI from ESO Chile
Boehnhardt, H.; Ageorges, N.; Bagnulo, S. et al

in Käufk, H. U.; Sterken, C. (Eds.) Deep Impact as a World Observatory Event: Synergies in Space, Time, and Wavelength (2009)

Around the time of the impact of NASA's Deep Impact (DI) mission at comet 9P/Tempel 1, in total 6 telescopes with altogether 7 different instruments, located at the La Silla (LSO) and Paranal (VLT ... [more ▼]

Around the time of the impact of NASA's Deep Impact (DI) mission at comet 9P/Tempel 1, in total 6 telescopes with altogether 7 different instruments, located at the La Silla (LSO) and Paranal (VLT) Observatories of the European Southern Observatory (ESO) in Chile, were used to characterize the dust properties before and after the event. The ejecta cloud expanded at an average speed of about 200 ms[SUP]-1[/SUP]during the first hours after the event. It reached stagnation distance of 25000 km about 3 days after impact. The pre-impact dust jet and fan activity (`porcupine' pattern) remained undisturbed after impact. In our measurements the jet activity can be traced to a few 100 km nucleus distance. In total 9 comastructures are identified which may originate from at least 4 regions of enhanced dust emission on the nucleus - one of this region may in fact be multiple. No obvious signatures of a new active region created by DI are found. The overall dust production during the impact compares to about 5-10 h of normal activity. The global expansion geometry of the DI cloud is compatible with a majority of dust grains in the micron size range. Indications exist for asymmetric brightness and colour distributions of the dust in the ejecta cloud. The dust temperature rose from about 280-290 K before to 330 K one day after the event and fell to pre-impact level the day thereafter. The dust reflected sunlight was found to be linearly polarized at about 7.5% in the visible and near-IR, at constant level within about 4000 km from the nucleus. No circular polarization of the dust is detected. [less ▲]

Detailed reference viewed: 33 (4 ULg)
Full Text
Peer Reviewed
See detailEssai de bilan historiographique de la mémoire
Raxhon, Philippe ULg

in Cahiers du Centre de Recherches en Histoire du Droit et des Institutions (2009), 30(2008), 11-94

La contribution présente l'évolution historique du concept de mémoire dans l'historiographie, en mettant l'accent sur des foyers mémoriels comme la Shoah ou la colonisation.

Detailed reference viewed: 253 (26 ULg)
Full Text
Peer Reviewed
See detailTensor charges of light baryons in the Infinite Momentum Frame
Lorce, Cédric ULg

in Physical Review. D, Particles, Fields, Gravitation, and Cosmology (2009), D79

We have used the chiral-quark soliton model formulated in the infinite momentum frame to investigate the octet, decuplet, and antidecuplet tensor charges up to the 5Q sector. Using flavor $SU(3)$ symmetry ... [more ▼]

We have used the chiral-quark soliton model formulated in the infinite momentum frame to investigate the octet, decuplet, and antidecuplet tensor charges up to the 5Q sector. Using flavor $SU(3)$ symmetry we have obtained for the proton $\delta u=1.172$ and $\delta d=-0.315$ in fair agreement with previous model estimations. The 5Q contribution allowed us to estimate also the strange contribution to the proton tensor charge $\delta s=- 0.011$. All those values have been obtained at the model scale $Q^2_0=0.36$ GeV^2. [less ▲]

Detailed reference viewed: 10 (2 ULg)
Full Text
Peer Reviewed
See detailAn Explicit Formula for the Natural and Conformally Invariant Quantization
Radoux, Fabian ULg

in Letters in Mathematical Physics (2009), 89

Lecomte (Prog Theor Phys Suppl 144:125–132, 2001) conjectured the existence of a natural and conformally invariant quantization. In Mathonet and Radoux (Existence of natural and conformally invariant ... [more ▼]

Lecomte (Prog Theor Phys Suppl 144:125–132, 2001) conjectured the existence of a natural and conformally invariant quantization. In Mathonet and Radoux (Existence of natural and conformally invariant quantizations of arbitrary symbols, math.DG 0811.3710), we gave a proof of this theorem thanks to the theory of Cartan connections. In this paper, we give an explicit formula for the natural and conformally invariant quantization of trace-free symbols thanks to the method used in Mathonet and Radoux and to tools already used in Radoux [Lett Math Phys 78(2):173–188, 2006] in the projective setting. This formula is extremely similar to the one giving the natural and projectively invariant quantization in Radoux. [less ▲]

Detailed reference viewed: 16 (3 ULg)
Full Text
Peer Reviewed
See detailGreenland [in "State of the Climate in 2008"]
Box, J.; Bai, L.; Benson, R. et al

in Bulletin of the American Meteorological Society (2009), 90

An abnormally cold winter across the southern half of Greenland led to substantially higher west coast sea ice thickness and concentration. Even so, record-setting summer temperatures around Greenland ... [more ▼]

An abnormally cold winter across the southern half of Greenland led to substantially higher west coast sea ice thickness and concentration. Even so, record-setting summer temperatures around Greenland, combined with an intense melt season (particularly across the northern ice sheet), led the 2008 Greenland climate to be marked by continued ice sheet mass deficit and floating ice disintegration. [less ▲]

Detailed reference viewed: 28 (3 ULg)
Full Text
Peer Reviewed
See detailComputing Convex Hulls by Automata Iteration
Cantin, François ULg; Legay, Axel; Wolper, Pierre ULg

in International Journal of Foundations of Computer Science (2009), 20(4), 647-667

This paper considers the problem of computing the real convex hull of a finite set of n-dimensional integer vectors. The starting point is a finite-automaton representation of the initial set of vectors ... [more ▼]

This paper considers the problem of computing the real convex hull of a finite set of n-dimensional integer vectors. The starting point is a finite-automaton representation of the initial set of vectors. The proposed method consists in computing a sequence of automata representing approximations of the convex hull and using extrapolation techniques to compute the limit of this sequence. The convex hull can then be directly computed from this limit in the form of an automaton-based representation of the corresponding set of real vectors. The technique is quite general and has been implemented. [less ▲]

Detailed reference viewed: 83 (23 ULg)
Full Text
Peer Reviewed
See detailGround-based photometry of space-based transit detections: Photometric follow-up of the CoRoT mission
Deeg, H. J.; Gillon, Michaël ULg; Shporer, A. et al

in Astronomy and Astrophysics (2009), 506

The motivation, techniques and performance of the ground-based photometric follow-up of transit detections by the CoRoT space mission are presented. Its principal raison d’être arises from the much higher ... [more ▼]

The motivation, techniques and performance of the ground-based photometric follow-up of transit detections by the CoRoT space mission are presented. Its principal raison d’être arises from the much higher spatial resolution of common ground-based telescopes in comparison to CoRoT’s cameras. This allows the identification of many transit candidates as arising from eclipsing binaries that are contaminating CoRoT’s lightcurves, even in low-amplitude transit events that cannot be detected with ground-based obervations. For the ground observations, “on” – “off” photometry is now largely employed, in which only a short timeseries during a transit and a section outside a transit is observed and compared photometrically. CoRoTplanet candidates’ transits are being observed by a dedicated team with access to telescopes with sizes ranging from 0.2 to 2 m. As an example, the process that led to the rejection of contaminating eclipsing binaries near the host star of the Super-Earth planet CoRoT-7b is shown. Experiences and techniques from this work may also be useful for other transit-detection experiments, when the discovery instrument obtains data with a relatively low angular resolution. [less ▲]

Detailed reference viewed: 38 (2 ULg)
Full Text
Peer Reviewed
See detailApprentissage par renforcement appliqué à la commande des systèmes électriques
Dai, Jing; Phulpin, Yannick; Vannier, Jean-Claude et al

in Proceedings of "Les Journées Electrotechnique du Futur 2009" (2009)

Cet article propose une revue de littérature concernant les applications de l’apprentissage par renforcement à la commande des systèmes électriques. L'apprentissage par renforcement a pour caractéristique ... [more ▼]

Cet article propose une revue de littérature concernant les applications de l’apprentissage par renforcement à la commande des systèmes électriques. L'apprentissage par renforcement a pour caractéristique principale de résoudre des problèmes de commande optimale à partir de la seule observation des trajectoires du système. Il présente l’intérêt de ne pas requérir de connaissance à priori sur la dynamique du système à commander et convient ainsi aux problèmes de commande des systèmes complexes. Dans un premier temps, l’article détaille les caractéristiques des problèmes auxquels l’apprentissage par renforcement s’applique, puis cette technique est décrite. Ensuite, deux exemples classiques d’application aux systèmes électriques sont présentés. [less ▲]

Detailed reference viewed: 54 (2 ULg)
Full Text
See detailRègles étatiques et règles religieuses : brèves réflexions sur certaines de leurs caractéristiques
Behrendt, Christian ULg

in Revue de la Faculté de Droit de l'Université de Liège (2009)

The article studies some aspects of the relations between the public law concept of sovereignty and the religious notion of devine omnipotence.

Detailed reference viewed: 141 (18 ULg)
Full Text
See detailCulture and Gender do not Dissolve into how Scientists “read” Nature: Thelma Rowell’s Heterodoxy
Despret, Vinciane ULg

in Oren Harman (Ed.) Rebels, Mavericks, and Heretics in Biology (2009)

From her very first descriptions of the baboons (in the sixties), Thelma Rowell’s observations contrasted sharply with those of her colleagues (mostly males) working with similar animals. Numerous ... [more ▼]

From her very first descriptions of the baboons (in the sixties), Thelma Rowell’s observations contrasted sharply with those of her colleagues (mostly males) working with similar animals. Numerous observers among primatologists and science studies scholars have suggested that women observed differently. For some, womens’ patience makes them ideal observers. Rowell insisted that her challenging ideas about dominance relationships in primates were a result of her having been trained always to question authority. Roswell’s distinction lay in doing the same sorts of things others scientists were doing but for far longer, which enabled her to see more and different results. [less ▲]

Detailed reference viewed: 78 (0 ULg)
Full Text
See detailLe fédéralisme en Belgique et au Canada. Comparaison sociopolitique
Fournier, Bernard ULg; Reuchamps, Min ULg

Book published by De Boeck Université (2009)

Federalism in Belgium and Canada is definitely a key issue. In this edited book, the authors from both side of the Ocean explore the Belgian and the Canadian federal system. This endeavour leads to a ... [more ▼]

Federalism in Belgium and Canada is definitely a key issue. In this edited book, the authors from both side of the Ocean explore the Belgian and the Canadian federal system. This endeavour leads to a fruitful comparative dialogue between experts of federalism. Five topics are especially analysed: the federal dynamics, the distribution of powers, the protection of minorities, the international relations, and the future of the federations. [less ▲]

Detailed reference viewed: 310 (47 ULg)
Full Text
See detailDEVELOPMENT OF AN INTEGRATED STRATEGY FOR CONTROLLING THE ALLERGEN ISSUE IN THE BELGIAN FOOD AND CATERING INDUSTRY - ALLERRISK
De Loose, Marc; Daeseleire, Else; Taverniers, Isabelle et al

Report (2009)

Detailed reference viewed: 37 (2 ULg)
Full Text
Peer Reviewed
See detailLes années de plomb allemandes : matrice audiovisuelle ou réseau de représentations ?
Hamers, Jérémy ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (2009), 2

Depuis le début des années septante, le champ de la représentation visuelle des années de plomb allemandes semble avoir été divisé en deux camps. D’une part les médias et leur « sale travail » aux côtés ... [more ▼]

Depuis le début des années septante, le champ de la représentation visuelle des années de plomb allemandes semble avoir été divisé en deux camps. D’une part les médias et leur « sale travail » aux côtés de l’État, de l’autre quelques artistes persécutés pour avoir osé porter un regard critique sur les événements de l’époque. Partant de quelques images produites ou suggérées par les terroristes eux-mêmes, ce texte démontre que toute représentation des années de plomb appartient en réalité à un seul et même réseau de citations, de détournements et de réemplois d’images. Ce réseau commun aux médias de l’époque comme à l’art contemporain réclame une nouvelle façon d’envisager la représentation du terrorisme allemand, qui ne serait plus déterminée par l’âge des images ni par l’appartenance politique, artistique ou médiatique de ses producteurs, mais au contraire par une parenté de forme entre des images qui dialoguent, se répondent et s’éclairent mutuellement à travers le regard du spectateur. [less ▲]

Detailed reference viewed: 78 (13 ULg)