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Peer Reviewed
See detailRelative trophic levels of several marine mammal species from the Northwestern Atlantic determined through stable isotope analyses
Beans, Christina; Das, Krishna ULg; Mauger, Gérard et al

Poster (2002, April)

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See detailRelative weights of the observational constraints on the determination of stellar parameters
Ozel, N.; Dupret, Marc-Antoine ULg; Baglin, A.

in Communications in Asteroseismology (2009), 158

We study the effect of using different observed quantities (oscillation frequencies, binarity, interferometric radius) and the impact of their accuracy on constraining the uncertainities of global free ... [more ▼]

We study the effect of using different observed quantities (oscillation frequencies, binarity, interferometric radius) and the impact of their accuracy on constraining the uncertainities of global free stellar parameters (i.e. the mass, the age etc.). We use the Singular Value Decomposition (SVD) formalism to analyse the behavior of the chi^2 fitting function around its minimum. This method relates the errors in observed quantities to the precision in the model parameters. We apply this tool to the alpha Cen A for which, seismic, binarity and interferometric properties are known with high accuracy. We determine how changes of the accuracy of the observable constraints affect the precision obtained on the global stellar parameters. [less ▲]

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Peer Reviewed
See detail"Relatives en rallonge" ou "relatifs de liaison" : l'exemple de Tacite
Longrée, Dominique ULg

in Heberlein, Friedrich; Bammesberger, A. (Eds.) Akten des VIII. internationalen Kolloquiums zur lateinischen Linguistik, Eichstätt, 24-28/04/1995 (1995)

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See detailRelativiser les performances des établissements scolaires : quelle valeur ajoutée ?
Lafontaine, Dominique ULg

in Demeuse, Marc (Ed.) Vers une école juste et efficace : 26 contributions sur les systèmes d'enseignement et de formation : une approche internationale (2005)

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See detailRelativisme et pluralisme : l’apport de la psychologie de Jean Piaget à la sociologie politique
Fournier, Bernard ULg

Conference (2000, July 31)

Recent developments in theory insist on the existence of a plurality of individual realities within the same social group. However, the logic of understanding used to analyse these realities in the ... [more ▼]

Recent developments in theory insist on the existence of a plurality of individual realities within the same social group. However, the logic of understanding used to analyse these realities in the empirical research still relies too much on a univocal perspective in which the concepts are perceived to be homogeneous. This manner of approaching reality legitimates the linear explanations of attitudes and individual behaviours. But a reflection on the effective processes of constructing the individual worlds of reference based on a psychological perspective strongly challenges this logic. Thus, the works of Jean Piaget clearly show that the individual is not a passive being in the dynamics of appropriating the world, but that he or she assimilates the social context, accommodates it to what he or she already understands and thereby transforms it. This theoretical framework opens the path to an interesting form of conceptual relativism where every concept has to be replaced into the context as it is structured by the individuals’ worlds of reference. This relativity presents a challenge to empirical research: Which principle of synthesis would allow us to respect the theoretical plurality proposed by the piagetian interpretation? So far, we have mostly used a methodology based on the classificatory approach in our research, but we are by now more aware of its limitations as well. [less ▲]

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See detailRelativisme, pluralisme et socialisation politique : l’apport de Jean Piaget au débat
Fournier, Bernard ULg

Conference (2007, May 25)

Recent developments in theory insist on the existence of a plurality of individual realities within the same social group. However, the logic of understanding used to analyse these realities in the ... [more ▼]

Recent developments in theory insist on the existence of a plurality of individual realities within the same social group. However, the logic of understanding used to analyse these realities in the empirical research still relies too much on a univocal perspective in which the concepts are perceived to be homogeneous. This manner of approaching reality legitimates the linear explanations of attitudes and individual behaviours. But a reflection on the effective processes of constructing the individual worlds of reference based on a psychological perspective strongly challenges this logic. Thus, the works of Jean Piaget clearly show that the individual is not a passive being in the dynamics of appropriating the world, but that he or she assimilates the social context, accommodates it to what he or she already understands and thereby transforms it. This theoretical framework opens the path to an interesting form of conceptual relativism where every concept has to be replaced into the context as it is structured by the individuals’ worlds of reference. This relativity presents a challenge to empirical research: Which principle of synthesis would allow us to respect the theoretical plurality proposed by the piagetian interpretation? So far, we have mostly used a methodology based on the classificatory approach in our research, but we are by now more aware of its limitations as well. [less ▲]

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See detailRelativisme, pluralisme et socialisation politique : l’apport de Jean Piaget au débat
Fournier, Bernard ULg

Conference (2004, July)

Recent developments in theory insist on the existence of a plurality of individual realities within the same social group. However, the logic of understanding used to analyse these realities in the ... [more ▼]

Recent developments in theory insist on the existence of a plurality of individual realities within the same social group. However, the logic of understanding used to analyse these realities in the empirical research still relies too much on a univocal perspective in which the concepts are perceived to be homogeneous. This manner of approaching reality legitimates the linear explanations of attitudes and individual behaviours. But a reflection on the effective processes of constructing the individual worlds of reference based on a psychological perspective strongly challenges this logic. Thus, the works of Jean Piaget clearly show that the individual is not a passive being in the dynamics of appropriating the world, but that he or she assimilates the social context, accommodates it to what he or she already understands and thereby transforms it. This theoretical framework opens the path to an interesting form of conceptual relativism where every concept has to be replaced into the context as it is structured by the individuals’ worlds of reference. This relativity presents a challenge to empirical research: Which principle of synthesis would allow us to respect the theoretical plurality proposed by the piagetian interpretation? So far, we have mostly used a methodology based on the classificatory approach in our research, but we are by now more aware of its limitations as well. [less ▲]

Detailed reference viewed: 24 (2 ULg)
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See detailRelativistic approaches for bound- and scattering states in nuclei
Jaminon, Martine ULg

in Guardiola, R.; Polls, A. (Eds.) Quarks, Mesons and Isobars in Nuclei (1983)

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See detailRelativistic atomic data for EUV and X-ray lines in the highly charged Zn-like ions from Yb40+ to U62+
Quinet, Pascal ULg; Biémont, Emile ULg; Palmeri, P. et al

in Atomic Data and Nuclear Data Tables (2007), 93(5), 711-729

The wavelengths and transition probabilities for EUV and X-ray lines in the spectra from Yb XLI to U LXIII along the zinc isoelectronic sequence have been calculated using a multiconfiguration Dirac-Fock ... [more ▼]

The wavelengths and transition probabilities for EUV and X-ray lines in the spectra from Yb XLI to U LXIII along the zinc isoelectronic sequence have been calculated using a multiconfiguration Dirac-Fock (MCDF) model. Results are reported for the 4S(2) -4s4p, 4s4p-4p(2), and 4s4p-4s4d transitions. A comparison of the calculated wavelengths with the few experimental results available is also presented. (c) 2007 Elsevier Inc. All rights reserved. [less ▲]

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See detailRelativistic atomic data for EUV and X-ray spectra of highly charged Cu-, Zn-, Ga- and Ge-like ions (70 ≤ Z ≤ 92)
Quinet, Pascal ULg; Biémont, Emile ULg; Palmeri, P. et al

in Journal of Physics : B Atomic Molecular & Optical Physics (2007), 58

Wavelengths and transition probabilities have been calculated for the n=4, Δn=0 allowed transitions in the heavy Cu-, Zn-, Ga- and Ge-like ions with Z=70–92. Fully relativistic multiconfiguration Dirac ... [more ▼]

Wavelengths and transition probabilities have been calculated for the n=4, Δn=0 allowed transitions in the heavy Cu-, Zn-, Ga- and Ge-like ions with Z=70–92. Fully relativistic multiconfiguration Dirac-Fock (MCDF) computations were carried out. The present results are compared to and agree well with recent electron-beam ion-trap (EBIT) measurements in Yb, W, Os, Au, Pb, Bi, Th and U ions. [less ▲]

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See detailRelativistic Hartree-Fock and Dirac-Fock atomic structure calculations in Fr-like ions Ra+, Ac2+Th3+ and U5+
Biémont, Emile ULg; Fivet, V.; Quinet, Pascal ULg

in Journal of Physics B-Atomic Molecular and Optical Physics (2004), 37(20), 4193-4204

A detailed investigation of radiative parameters for electric dipole (El) transitions is presented for the ions Ra II, Ac 111, Th IV and U VI along the francium isoelectronic sequence. The pseudo ... [more ▼]

A detailed investigation of radiative parameters for electric dipole (El) transitions is presented for the ions Ra II, Ac 111, Th IV and U VI along the francium isoelectronic sequence. The pseudo-relativistic Hartree-Fock (BFR) method including core-polarization effects is used for the calculations. Comparisons with multiconfigurational Dirac-Fock (MCDF) calculations show that the most important relativistic effects are taken into account. In view of their importance in nuclear laser spectroscopy, forbidden rates (transitions M1 and E2) in Th IV are also reported in this paper. [less ▲]

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See detailRelativistic mean field approaches to nucleon and antinucleon-nucleus scattering
Jaminon, Martine ULg; Mahaux, Claude ULg

in Boffi, S.; Ciofi degli Atti, C.; Giannini, M. M. (Eds.) Perspectives in Nuclear Physics at Intermediate Energies (1985)

Detailed reference viewed: 7 (1 ULg)
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See detailRelativistic nuclear model description of axial transitions 16O (0+<-> O-) 16N
Do Dang, D.; Jaminon, Martine ULg

in Physics Letters B (1985), 153

Detailed reference viewed: 11 (2 ULg)
See detailRelativistic Optical Potentials
Jaminon, Martine ULg

Conference (1985)

Detailed reference viewed: 1 (0 ULg)
Peer Reviewed
See detailRelativistic quantum field approach to nuclear matter and nuclei
Jaminon, Martine ULg; Mahaux, Claude ULg

in Zabolitzky, J. G.; de Llano, M.; Fortes, M. (Eds.) et al Recent progress in many-body theories (1981)

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See detailRelativite de la prise en charge des cancers cutanes. Plaidoyer pour la synergie entre le medecin generaliste et le dermatologue-oncologue
Pierard, Gérald ULg; Pierard-Franchimont, Claudine ULg; Cornil, F. et al

in Revue Médicale de Liège (2000), 55(4), 247-252

The clinical diagnosis and treatment of cutaneous cancers represent a frequent situation in cancerology. About one third of all human cancers take their origin from the skin. The general practitioner and ... [more ▼]

The clinical diagnosis and treatment of cutaneous cancers represent a frequent situation in cancerology. About one third of all human cancers take their origin from the skin. The general practitioner and the dermatologist-oncologist play the key role in that field of health care. [less ▲]

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See detailRelativité générale
De Rop, Yves ULg

Learning material (2014)

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See detailRelativité générale II
De Rop, Yves ULg

Learning material (2008)

Detailed reference viewed: 50 (13 ULg)