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See detailNon specific cholestatic syndrom after liver transplantation. Prognosis and risk factors
De Roover, Arnaud ULg; Meurisse, Nicolas ULg; Marival, T. et al

in Acta Gastro-Enterologica Belgica (2005, January), 68(1), 22

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See detailNon Stationary Multiresolution Analysis
Simons, Laurent ULg

Poster (2010, September 13)

An orthonormal basis of wavelets of $L^2(\R)$ is an orthonormal basis of $L^2(\R)$ of type \[ \psi_{j,k}=2^{j/2}\psi(2^j\cdot-k),\quad j,k\in\Z. \] A classical method to obtain such bases consists in ... [more ▼]

An orthonormal basis of wavelets of $L^2(\R)$ is an orthonormal basis of $L^2(\R)$ of type \[ \psi_{j,k}=2^{j/2}\psi(2^j\cdot-k),\quad j,k\in\Z. \] A classical method to obtain such bases consists in constructing a multiresolution analysis. When the mother wavelet $\psi$ depends on the scale (i.e. the index $j$), a non stationary version of multiresolution analysis is then used. It is for example the case in the general context of Sobolev spaces. We generalize different characterizations in the standard theory of wavelets to the case of multi-scales wavelets and non stationary multiresolution analyses. [less ▲]

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See detailNon stationary Wavelets
Simons, Laurent ULg

Scientific conference (2011, December 21)

In the presentation, I first compare the construction of orthonormal bases of wavelets from a multiresolution in the stationary and the non stationary case. Then, I expose some generalizations of ... [more ▼]

In the presentation, I first compare the construction of orthonormal bases of wavelets from a multiresolution in the stationary and the non stationary case. Then, I expose some generalizations of characterizations of orthonormal bases of wavelets in the non stationary case. Finally, I speak about the non stationary case for the continuous wavelet transform. [less ▲]

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See detailNon thermal nitrogen atoms in the Earth's thermosphere. 2. A source of nitric oxide
Gérard, Jean-Claude ULg; Shematovich, V. I.; Bisikalo, D. V.

in Geophysical Research Letters (1991), 18

The role of the non maxwellian nitrogen atoms in the odd nitrogen thermospheric chemistry is investigated with a numerical model. This one-dimensional model solves the continuity equation, including ... [more ▼]

The role of the non maxwellian nitrogen atoms in the odd nitrogen thermospheric chemistry is investigated with a numerical model. This one-dimensional model solves the continuity equation, including molecular and turbulent transport for the coupled NO-N([SUP]4[/SUP]S) system. It is shown that the very fast reaction between hot N([SUP]4[/SUP]S) atoms and O[SUB]2[/SUB] provides an additional source of nitric oxide. At equatorial latitudes, this contribution amounts to 6-30% of the other classical production sources of NO for solar minimum activity conditions. The cross section for elastic collisions with ambient gas introduces the largest uncertainty on this estimate. It is concluded that, although it does not drastically alter the conclusions of previous models of NO, the effect of hot N atoms must be considered in future models of the NO-N system chemistry. [less ▲]

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See detailNon thermal nitrogen atoms in the earth's thermosphere. I - Kinetics of hot N(4S). II - A source of nitric oxide
Shematovich, V. I.; Bisikalo, D. V.; Gérard, Jean-Claude ULg

in Geophysical Research Letters (1991), 18

The energy distribution of translationally hot nitrogen atoms in the thermosphere has been calculated using a nonequilibrium kinetic model. Dissociation by solar EUV photons and photoelectrons is found to ... [more ▼]

The energy distribution of translationally hot nitrogen atoms in the thermosphere has been calculated using a nonequilibrium kinetic model. Dissociation by solar EUV photons and photoelectrons is found to provide an important source of non-Maxwellian high energy N(4S) atoms. It is shown that quenching of metastable N(2D) atoms by atomic oxygen also produces significant amounts of hot N(4S) atoms. The fraction of hot N atoms reacting with O2 is found to be about 15 percent of the production rate of atomic nitrogen by N2 dissociation by photon and photoelectron impact and quenching of N(2D) metastable atoms by atomic oxygen. The very fast reaction between hot N(4S) atoms and O2 is shown to provide an additional source of nitric oxide. At equatorial latitudes, this contribution amounts to 6-30 percent of the other classical production sources of NO for solar minimum activity conditions. It is concluded that the effect of hot N atoms must be considered in future models of the NO-N system chemistry. [less ▲]

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See detailNon, le village de pêcheurs de Phan Thiet n’a pas été victime du changement climatique
Ozer, Pierre ULg

in Colloque international "Géomatique et gestion des risques naturels" en hommage au Professeur André Ozer - Livre de résumés (2012)

En janvier 2009, 27 maisons situées sur le littoral sud du Vietnam, dans la ville de Phan Thiet, zone très touristique à 200 kilomètres à l'est de Ho Chi Minh-Ville, se sont effondrées. Une centaine d ... [more ▼]

En janvier 2009, 27 maisons situées sur le littoral sud du Vietnam, dans la ville de Phan Thiet, zone très touristique à 200 kilomètres à l'est de Ho Chi Minh-Ville, se sont effondrées. Une centaine d'autres bâtiments étaient également menacés de disparition. Les médias internationaux ont ainsi relayé l’information « des centaines de soldats, de gardes côtes et de volontaires ont été mobilisés pour amasser des sacs de sable sur place et tenter de limiter les dégâts. En cause, l'érosion du littoral, grignoté par de fortes vagues. Selon les experts, le Vietnam et ses plus de 3.200 km de côtes font partie des zones les plus exposées aux effets du réchauffement climatique, qu'il s'agisse de l'élévation du niveau des mers ou de l'augmentation de la fréquence des typhons et inondations ». Il s’agit donc indéniablement d’une des conséquences du réchauffement climatique. Cet article montre comment, en utilisant la fonction multi dates Google Earth, il est possible de démonter cette argumentation et de mettre en évidence les vraies causes de ce rapide et inéluctable retrait des côtes au niveau de ce village de pêcheurs, à savoir la construction anarchique de la station balnéaire de Mui Ne, quelques kilomètres à l’est. La création de ce désormais haut lieu touristique est extrêmement récente, le premier établissement étant sorti de terre en 1994. Vu le succès croissant des plages de sable blanc, toute la côte a depuis été lotie sur près de cinq kilomètres. Mui Ne a donc modifié son espace pour accueillir les touristes occidentaux. Ainsi, les cocoteraies ont été abattues pour laisser la place à des cocotiers ne faisant plus office que de décor sur la plage, les liserons des sables ont été arrachés pour éloigner les puces de mer, le sable a été égalisé et les infrastructures hôtelières ont recouvert les dunes pour être en contact direct avec la plage. C’est ainsi tout un décor « exotique » qui est créé pour être conforme aux représentations des touristes occidentaux. La suite est connue d’avance : le fragile équilibre littoral est rompu et le bilan sédimentaire devient négatif. Entre 2006 et 2009, la plage d’une trentaine de mètres a totalement disparu. Or, la plage étant la raison d’être de ce lieu, il convient de la préserver à tout prix. Ainsi, les promoteurs immobiliers ont eu recours à la construction d’épis de plus de 100 mètres pour recréer de longues plages, artificielles cette fois, qui interrompent le transit sédimentaire. La dérive littorale est ainsi stoppée ce qui engendre la disparition des plages suivantes et l’effondrement des maisons de pêcheurs. Cette analyse montre clairement la rapide modification des paysages qui résulte d’une conversion économique locale non encadrée répondant aux processus de mondialisation. [less ▲]

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See detailNon, les cabinets d'avocats ne sont pas des banques données!
Jacobs, Ann ULg; Henry, Patrick

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2009), 19

Etat de la jurisprudence belge en matière de perquisitions dans les cabinets d'avocats; critique de cette jurisprudence au regard de la jurisprudence de la Cour européenne des droits de l'homme et ... [more ▼]

Etat de la jurisprudence belge en matière de perquisitions dans les cabinets d'avocats; critique de cette jurisprudence au regard de la jurisprudence de la Cour européenne des droits de l'homme et propositions de changements. [less ▲]

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See detailNon, pas aujourd'hui, demain - Elias Canetti
Vromans, Joseph ULg

Article for general public (1994)

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See detailNon-activated 18F-fluorinated aromatic compounds through nucleophilic substitution and decarbonylation reactions using RhCl[P(C6H5)3]3.
Plenevaux, Alain ULg; Lemaire, Christian ULg; Palmer, A. J. et al

in Journal of Labelled Compounds & Radiopharmaceuticals (1993), 32

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See detailNon-Adhesive Behavior of New Nanostructured PNIPAM Surfaces Towards Specific Neurodegenerative Proteins: Application to Storage and Titration of Tau Proteins
Vrlinic, Tjasa; Debarnot, Dominique; Legeay, Gilbert et al

in Macromolecular Bioscience (2012)

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See detailNon-adiabatic asteroseismology of near-main sequence variable stars
Dupret, Marc-Antoine ULg

in IAU Colloq. 193: Variable Stars in the Local Group (2004, May 01)

We present in this talk a new linear non-adiabatic pulsation code: MAD[SUP]1[/SUP]. We detail all the possible applications of it in the frame of asteroseismology. By using it, photospheric observables ... [more ▼]

We present in this talk a new linear non-adiabatic pulsation code: MAD[SUP]1[/SUP]. We detail all the possible applications of it in the frame of asteroseismology. By using it, photospheric observables such as multi-color photometric amplitude ratios, phase differences and line profile variations can be determined accurately and confronted with observations. Moreover, MAD enables the precisely analysis of the excitation mechanisms of pulsating stars. Applications to different kinds of variable stars (delta Sct, beta Cephei, Slowly Pulsating B and gamma Dor stars) are presented by Dupret et al. (these proceedings), Handler and Aerts (these proceedings), De Cat et al. (these proceedings) and De Ridder et al. (these proceedings). [less ▲]

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See detailNon-adiabatic effects in photodissociation of bromoacetyl chloride
Bacchus-Montabonel, Marie-Christine; Vaeck, Nathalie; Lasorne, Benjamin et al

in Chemical Physics Letters (2003), 374

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See detailNon-adiabatic interactions in unimolecular decay. I.
Desouter, Michèle ULg; Leclerc, Jean-Claude; Lorquet, Jean-Claude

in Chemical Physics (1975), 9

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See detailNon-adiabatic interactions in unimolecular decay. II. Simplified formalism
Desouter, Michèle ULg; Lorquet, Jean-Claude

in Journal of Chemical Physics (1977), 66

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See detailNon-adiabatic interactions in unimolecular decay. IV. Transition probability as a function of the Massey parameter
Desouter, Michèle ULg; Lorquet, Jean-Claude

in Journal of Chemical Physics (1979), 71

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See detailNon-adiabatic interactions in unimolecular decay. V. Conical and Jahn-Teller intersections
Desouter, Michèle ULg; Galloy, Claudine; Lorquet, Jean-Claude et al

in Journal of Chemical Physics (1979), 71

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See detailNon-adiabatic interactions in wave packet dynamics of the bromoacetyl chloride photodissociation
Lasorne, Benjamin; Bacchus-Montabonel, Marie-Christine; Vaeck, Nathalie et al

in Journal of Chemical Physics (2004), 120(3), 1271-1278

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See detailNon-adiabatic Pulsational Observables in Scuti and Doradus Stars: a Comparison of Different Numerical Codes
Moya, A.; Garrido, R.; Dupret, Marc-Antoine ULg

in Asteroseismology Across the HR Diagram (2003)

Not Available

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See detailNon-adiabatic pulsations in delta Scuti stars
Moya, A.; Garrido, R.; Dupret, Marc-Antoine ULg

in Stellar Structure and Habitable Planet Finding (2004, January 01)

For delta Scuti stars, phase differences and amplitude ratios between the relative effective temperature variation and the relative radial displacement can be derived from multicolor photometric ... [more ▼]

For delta Scuti stars, phase differences and amplitude ratios between the relative effective temperature variation and the relative radial displacement can be derived from multicolor photometric observations. The same quantities can be also calculated from theoretical non-adiabatic pulsation models. We present here these theoretical results, which indicate that non-adiabatic quantities depend on the mixing length parameter alpha used to treat the convection in the standard Mixing Length Theory (MLT). This dependence can be used to test and to constrain, through multicolor observations, the way MLT describes convection in the outermost layers of the star. We will use the equilibrium models provided by the CESAM evolutionary code. The pulsational observables are calculated by using a non-adiabatic pulsation code developed by R. Garridon and A. Moya. In the evolutionary and pulsation codes, a complete reconstruction of the non-grey atmosphere (Kurucz models) is included. The interaction between pulsation and atmosphere, as described by Dupret et al. (2002), is also included in the code. [less ▲]

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See detailNon-adiabatic seismic study of the thin convective envelope of delta Scuti stars
Dupret, Marc-Antoine ULg; Grigahcène, A.; Garrido, R. et al

in IAU Colloq. 193: Variable Stars in the Local Group (2004, May 01)

For delta Sct stars, the theoretical predictions of a non-adiabatic pulsation code are very dependent on the characteristics of the thin convective envelope of the models (Balona and Evers 1999). The ... [more ▼]

For delta Sct stars, the theoretical predictions of a non-adiabatic pulsation code are very dependent on the characteristics of the thin convective envelope of the models (Balona and Evers 1999). The treatment of the non-adiabatic interaction between convection and pulsation also has a significant impact on the results, particularly near the red edge of the instability strip. The non-adiabatic theoretical predictions can be tested upon observations by comparing them to the amplitude ratios and phase differences as observed in different color passbands (Dupret et al. 2003). In the first part of this paper, we compare the results obtained by adopting different treatments of convection in the interior and atmosphere models: mixing-length theory (MLT) and full spectrum of turbulence (FST) (Canuto et al. 1996, CGM). In the second part, we examine the problem of the interaction between convection and pulsation and compare the mode stability obtained with and without including time-dependent convection in our non-adiabatic code. [less ▲]

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