References of "2012"
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See detailInvestigation of mechanochemical processes by single-molecule AFM
Willet, Nicolas ULg

Scientific conference (2012, March 23)

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See detailEtude sur les activités des provinces wallonnes
Behrendt, Christian ULg

Report (2012)

L'étude se propose de réaliser une photographie aussi précise que possible de l'activité des cinq provinces wallonnes, tant au point de vue des compétences exercées et de leur importance financière, qu'au ... [more ▼]

L'étude se propose de réaliser une photographie aussi précise que possible de l'activité des cinq provinces wallonnes, tant au point de vue des compétences exercées et de leur importance financière, qu'au point de vue du nombre de personnels impliqués. Elle expose par ailleurs le cadre constitutionnel et légal de l'institution provinciale et dresse un portrait succinct de ses possibilités d'évolution à l'avenir. [less ▲]

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See detailNovel perspectives in the definition of responders in trials of osteoarthritis
Bruyère, Olivier ULg

Conference (2012, March 23)

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See detailConsistent model for \pi N transition distribution amplitudes and backward pion electroproduction
Lansberg, Jean-Philippe ULg; Pire, Bernard; Semenov-Tian-Chanski, Kirill ULg et al

in Physical Review. D : Particles and Fields (2012), 85

The extension of the concept of generalized parton distributions leads to the introduction of baryon to meson transition distribution amplitudes (TDAs), nondiagonal matrix elements of the nonlocal three ... [more ▼]

The extension of the concept of generalized parton distributions leads to the introduction of baryon to meson transition distribution amplitudes (TDAs), nondiagonal matrix elements of the nonlocal three quark operator between a nucleon and a meson state. We present a general framework for modeling nucleon to pion (\pi N) TDAs. Our main tool is the spectral representation for \pi N TDAs in terms of quadruple distributions. We propose a factorized Ansatz for quadruple distributions with input from the soft-pion theorem for \pi N TDAs. The spectral representation is complemented with a D-term like contribution from the nucleon exchange in the cross channel. We then study backward pion electroproduction in the QCD collinear factorization approach in which the nonperturbative part of the amplitude involves N TDAs. Within our two component model for N TDAs, we update previous leading-twist estimates of the unpolarized cross section. Finally, we compute the transverse target single spin asymmetry as a function of skewness. We find it to be sizable in the valence region and sensitive to the phenomenological input of our \pi N TDA model. [less ▲]

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See detailScanning Hall probe microscopy of unconventional vortex patterns in the two-gap MgB2 superconductor
Gutierrez, J.; Raes, B.; Silhanek, Alejandro ULg et al

in Physical Review. B : Condensed Matter (2012), 85

The low magnetic field vortex patterns nucleation and evolution in a high-quality two-gap superconductor MgB2 single crystal have been investigated by low-temperature scanning Hall probe microscopy. Large ... [more ▼]

The low magnetic field vortex patterns nucleation and evolution in a high-quality two-gap superconductor MgB2 single crystal have been investigated by low-temperature scanning Hall probe microscopy. Large areas have been imaged with single-vortex resolution while changing systematically the thermodynamic parameters for field and temperature. The obtained patterns have been studied and compared with those of a reference 2H-NbSe2 single crystal. We found that the observed vortex patterns in MgB2 (e.g., stripes, clusters) appear due to competing vortex-vortex interactions as suggested by the theory of type-1.5 superconductivity. [less ▲]

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See detailEnvironmental product declarations of mineral paving, a tool for sustainable product choices
Belboom, Sandra ULg; Renzoni, Roberto ULg; Tourneur, Francis ULg et al

Poster (2012, March 22)

This study performs the environmental product declarations for three Belgian mineral products, two granite and one sandstone paving. Both main goals of this work were to obtain Belgian environmental ... [more ▼]

This study performs the environmental product declarations for three Belgian mineral products, two granite and one sandstone paving. Both main goals of this work were to obtain Belgian environmental product declarations to strengthen existing databases and to get similar information for their Asian counterparts. Indeed, competition with China for bluestone products and with India for sandstone pavement is very important due to very competitive prices despite their foreign origin and possibly higher induced environmental impacts. [less ▲]

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See detailReforming the Postal Universal Service
Gautier, Axel ULg; Poudou, Jean-Christophe

Conference (2012, March 22)

The postal sector has dramatically changed in the recent years with the ongoing liberalization process and the increased competitive pressures from alternative communication channels (e-substitution ... [more ▼]

The postal sector has dramatically changed in the recent years with the ongoing liberalization process and the increased competitive pressures from alternative communication channels (e-substitution). These two effects concur to decrease the mail volume handled by the historical operator which in turn may threaten the financial viability of the universal service and may call for a reform of the universal service. This paper examines the question of reforming the postal universal service, first by considering that the universal service remains confined in the postal word and, latter, by defining a universal service that includes postal and electronic technologies. [less ▲]

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See detailA Quick Look into the past, present and future of competition Enforcement in the Pharmaceutical Sector
Petit, Nicolas ULg

Conference given outside the academic context (2012)

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See detailFrom universal to local: celebrating new saints in the Southern Netherlands
Delfosse, Annick ULg

Conference (2012, March 22)

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See detailAMICE: erste internationale Modellrechnung der Maas
Becker, Bernhard; Patzke, Simone; Detrembleur, Sylvain ULg et al

in Forum für Hydrologie und Wasserbewirtschaftung (2012, March 22), 12(31), 165-170

Im Rahmen des AMICE-Projektes wurde eine erste zusammenhängende internationale Modellrechnung für den gesamten Flusslauf der Maas inklusive des Nebenflusses Rur durchgeführt. Dazu wurden die in den ... [more ▼]

Im Rahmen des AMICE-Projektes wurde eine erste zusammenhängende internationale Modellrechnung für den gesamten Flusslauf der Maas inklusive des Nebenflusses Rur durchgeführt. Dazu wurden die in den Anrainerstaaten Frankreich, Belgien, Deutschland und der Niederlande vorgehaltenen numerischen Modelle verwendet. Die Randbedingungen dieser Modelle wurden in einem iterativen Prozess abgeglichen. Die Ergebnisse der zusammenhängenden Simulation tragen zunächst zu einem besseren Systemverständnis bei. Im weiteren Verlauf des Projektes fließen sie in eine Risikobetrachtung ein und werden zur Bewertung von Maßnahmen zur Reduzierung des Hochwasserrisikos vor dem Hintergrund zu erwartender Änderung der Bemessungsgrößen infolge einer erwarteten Klimaänderung herangezogen. [less ▲]

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See detailRickert On Historical Sciences: A Critical Appraisal
Dewalque, Arnaud ULg

Conference (2012, March 22)

In this talk I discuss a significant objection that has been raised against the view of historical sciences held by Heinrich Rickert: the accusation of “fruitless formalism”. This accusation has been ... [more ▼]

In this talk I discuss a significant objection that has been raised against the view of historical sciences held by Heinrich Rickert: the accusation of “fruitless formalism”. This accusation has been expressed by a large number of thinkers, including for instance Wilhelm Wundt, Edmund Husserl, Max Frischeisen-Köhler and Eduard Spranger. As one knows, Rickert answered the objection in the last editions of his major book, "The Limits of the Concept Formation in Natural Sciences". His strategy was, first, to distance himself from a certain interpretation I will call the “formal view”, and, second, to argue for the fruitfulness of his own, more sophisticated view. However, as suggested by other representatives of the Bade School (like Richard Kroner), it is doubtful that the Rickert view perfectly succeeded in resorbing the shortcomings of the formal view. - In the first, introductive section I will put the formalism-problem in connection with a definite sub-set of issues within the broader framework of the philosophy of history (1). In the second and third sections I will address two questions related, respectively, to the nature of historical form (2) and to the nature of historical material (3). I will then contrast the formal view with the Rickert view on the one hand and with Kroner’s contentual view on the other hand. In the last, conclusive section I will try to draw some general implications of the formalism-controversy (4). [less ▲]

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See detailL'explosion du journalisme : des médias de masse à la masse des médias. Animation du débat avec Ignacio Ramonet
Geuens, Geoffrey ULg

Conference given outside the academic context (2012)

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See detailComparison of acid and enzymatic methods for insulin dosage: Analytical performances and impact on glomerular filtration rate evaluation
DELANAYE, Pierre ULg; Thibaudin, L.; Souvignet, M. et al

in Clinica Chimica Acta (2012), 413(5-6), 556-560

Among issues susceptible to hamper a reliable measurement of inulin clearance, those regarding the dosage of inulin are largely neglected. We have compared the analytical performances of 2 commonly used ... [more ▼]

Among issues susceptible to hamper a reliable measurement of inulin clearance, those regarding the dosage of inulin are largely neglected. We have compared the analytical performances of 2 commonly used methods of inulin dosage (one “acid” and one “enzymatic” method) and studied their potential impact on the glomerular filtration rate (GFR) value given by inulin clearance. Repeatability, uncertainty and the beta-expectation limits were evaluated from pre-determined serum and urine pools of inulin. Agreement between the two methods was analyzed from 99 inulin clearances performed in renal transplant patients. Impact of the method of dosage on GFR evaluation was simulated according to the respective beta-expectations limits of each method. Overall, intra-assay coefficient of variability and relative bias were inferior to 5% and 10% for both methods. Contrary to the acid method, analytical performance of the enzymatic method was not influenced by the presence of glucose. The relative difference in GFR values obtained with the two methods in transplant patients was − 0.4 ± 10%. Simulations suggested that changes in inulin concentration attributable to analytical error could modify the value of GFR from − 12% to + 28%. In conclusion, while analytical performances are globally acceptable for both methods, they are not strictly equivalent. The impact on the determination of GFR, albeit limited, is not negligible and adds to other sources of inaccuracy. International standardization for the dosage of inulin is necessary. [less ▲]

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See detailDevelopment of diamond AGPM coronagraphs for VISIR and NACO
Delacroix, Christian ULg; Habraken, Serge ULg; Karlsson, Mikael et al

Conference (2012, March 22)

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See detailVitamine D et diabète
CAVALIER, Etienne ULg; MATHIEU, C

Conference (2012, March 22)

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See detailThe connection between inner and outer debris disks probed by infrared interferometry
Absil, Olivier ULg

Conference (2012, March 22)

The far-infrared surveys of nearby main sequence stars performed since the launch of IRAS have shown that a significant fraction of main sequence stars are surrounded by cold dust populations. These ... [more ▼]

The far-infrared surveys of nearby main sequence stars performed since the launch of IRAS have shown that a significant fraction of main sequence stars are surrounded by cold dust populations. These surveys are now culminating with the the DUNES and DEBRIS key projects of the Herschel Space Observatory, which is more sensitive than ever and is able to detect cold dust populations with densities similar to that of the solar system Kuiper belt. However, little is known about the occurence of warm dust populations, the equivalent of our zodiacal cloud. Since 2005, high-precision infrared interferometers have opened a new way to directly resolve these exozodiacal dust populations. Interferometric observations enable to reach dynamic ranges (larger than 100:1) that are generally not achievable with classical spectro-photometric observations. We are currently carrying out a survey to characterise the hot dust populations around main sequence stars. The first results of this survey, performed on the CHARA array with the FLUOR instrument, will be presented in this talk. The results are based on a magnitude-limited sample of stars surrounded by cold dust and on an equivalent sample of stars showing no cold dust emission. The statistics for the occurence of bright exozodiacal disks will be presented, and compared with the Spitzer and Herschel results. The possible (dynamical) connections between the two populations will be discussed. We will also review the results obtained by other interferometers and discuss the on-going projects. [less ▲]

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