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See detailJournées d'introduction à la dialectologie et à la toponymie
Boutier, Marie-Guy ULg; Baiwir, Esther ULg

Conference given outside the academic context (2009)

Detailed reference viewed: 47 (4 ULg)
See detailLes journées de la Voix chantée
Morsomme, Dominique ULg

Conference given outside the academic context (2008)

Detailed reference viewed: 5 (0 ULg)
See detailLes journées des géographes belges. Evaluer la capacité du milieu.
Schmitz, Serge ULg; Meert, H.

Book - BEVAS/SOBEG (2003)

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See detailLes journées PROVAC-PSE de 2007
Grignard, Sophie ULg; Miermans, Marie-Christine ULg; Levie, Karin et al

in Promouvoir la santé à l'école (2008), (22), 4

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See detailLes journées PROVAC-SPSE-CPMS de 2008
Giot, Catherine ULg; Miermans, Marie-Christine ULg; Levie, Karin et al

in Promouvoir la santé à l'école (2009), (24), 3-4

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See detailLes journées PROVAC-SPSE-CPMS de juin 2009
Giot, Catherine ULg; Miermans, Marie-Christine ULg; Swennen, Béatrice et al

in Promouvoir la santé à l'école (2010), (29), 3-4

Detailed reference viewed: 33 (16 ULg)
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See detailA journey across scales, borders and data sources: minimum commute distance (MCD) analysis of home-to-work trips in Belgium
Teller, Jacques ULg; Cools, Mario ULg

in Hesse, Markus; Caruso, Geoffrey; Gerber, Philippe (Eds.) et al Proceedings of the BIVEC-GIBET Transport Research Days 2013 (2013)

Detailed reference viewed: 9 (2 ULg)
Peer Reviewed
See detailA journey in the analytical chemistry of dioxins
Focant, Jean-François ULg

in LIBRO DE RESÚMENES (2011, June)

Detailed reference viewed: 7 (2 ULg)
See detailThe Jovian Aurora: Implications of Multiwavelength Auroral Spectra for Auroral Particle Identity and Auroral Microphysics
Waite, J. H.; Gladstone, G. R.; Bolton, S. J. et al

in Bulletin of the American Astronomical Society (1998, September 01)

Remote sensing of Jupiter's aurora from x-ray to radio wavelengths has revealed much about the nature of the jovian aurora and about the impact of ionosphere-magnetosphere coupling on Jupiter's upper ... [more ▼]

Remote sensing of Jupiter's aurora from x-ray to radio wavelengths has revealed much about the nature of the jovian aurora and about the impact of ionosphere-magnetosphere coupling on Jupiter's upper atmosphere. Both energetic heavy ions and electrons energized in the outer magnetosphere contribute to the auroral excitation, as indicated by the combination of x-ray and ultraviolet observations. Imaging with the HST in the ultraviolet and with the IRTF at infrared wavelengths reveals several distinct regions of interaction: 1) a dusk sector where turbulent auroral patterns extend well into the polar cap; 2) a morning sector generally characterized by a single spatially confined auroral arc originating in the outer magnetosphere of Jupiter; 3) diffuse emissions associated with the Io plasma torus; and 4) a distinct region associated with the Io Flux Tube footprint. Ultraviolet spectroscopy has provided important information about the thermal structure of the upper atmosphere and altitude distribution of the auroral particle energy deposition, while Lyman alpha line profiles offer clues to the nature of thermospheric dynamical effects. Galileo observations at visible wavelengths on the nightside have provided a new view of the jovian aurora with unprecedented spatial information. Infrared observations have added much to the understanding of thermal structure and morphology and may hold the key to understanding the role of Joule heating. Radio observations imply that energetic particle precipitation extends to low latitudes, a result that has been corroborated at x-ray wavelengths. Multispectral observations of jovian auroral emissions will be discussed within a theoretical/modeling framework that serves to provide some insight into magnetosphere-ionosphere coupling and its effect on the upper atmosphere. Particular emphasis will be placed on the use of auroral spectra to identify incident energetic particles and their energy spectra as a means of elucidating the microphysics of auroral processes. [less ▲]

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See detailJovian Auroral Lyalpha Self-Reversals: A Window on Jupiter's Auroral Electrojet?
Gladstone, G. R.; Waite, J H, Jr; Gérard, Jean-Claude ULg

in Bulletin of the American Astronomical Society (1998, September 01)

High-resolution GHRS profiles of Lyalpha lines emitted from Jupiter's auroral regions were presented by Prang{e} et al. (Astrophys. J., 484, L169--L173, 1997). Their data show asymmetric self-reversed ... [more ▼]

High-resolution GHRS profiles of Lyalpha lines emitted from Jupiter's auroral regions were presented by Prang{e} et al. (Astrophys. J., 484, L169--L173, 1997). Their data show asymmetric self-reversed line profiles, with the blue or red peak brighter depending on the target location in Jupiter's northern auroral region. The measured asymmetries are equivalent to Doppler velocities towards and away from the observer of several km/s. As suggested by Sommeria et al. (Icarus, 119, 2--24, 1995), electrojet velocities of ~ 10--20 km/s may be present at Jupiter. Here we investigate the possibility that the observed wavelength shifts of the auroral Lyalpha line are a result of multiple scattering by H atoms carried along in Jupiter's auroral electrojet. If this explanation is found to be viable, then HST/STIS mapping of the velocity shifts in the Lyalpha line may represent (as with ground-based high-resolution observations of jovian auroral H_3(+) emission lines) a means for determining the dynamics of Jupiter's upper atmosphere and ionosphere. [less ▲]

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See detailJovian auroral spectroscopy with FUSE: analysis of self-absorption and implications for electron precipitation
Gustin, Jacques ULg; Feldman, Paul D.; Gérard, Jean-Claude ULg et al

in Icarus: International Journal of Solar System Studies (2004), 171(2), 336-355

High-resolution (similar to 0.22 Angstrom) spectra of the north jovian aurora were obtained in the 905-1180 Angstrom window with the Far Ultraviolet Spectroscopic Explorer (FUSE) on October 28, 2000. The ... [more ▼]

High-resolution (similar to 0.22 Angstrom) spectra of the north jovian aurora were obtained in the 905-1180 Angstrom window with the Far Ultraviolet Spectroscopic Explorer (FUSE) on October 28, 2000. The FUSE instrument resolves the rotational structure of the H-2 spectra and the spectral range allows the study of self-absorption. Below 1100 Angstrom, transitions connecting to the upsilon" less than or equal to 2 levels of the H-2 ground state are partially or totally absorbed by the overlying H2 molecules. The FUSE spectra provide information on the overlying H2 column and on the vibrational distribution of H-2. Transitions from high-energy H-2 Rydberg states and treatment of self-absorption are considered in our synthetic spectral generator. We show comparisons between synthetic and observed spectra in the 920-970, 1030-1080, and 1090-1180 Angstrom spectral windows. In a first approach (single-layer model), the synthetic spectra are venerated in a thin emitting layer and the emerging photons are absorbed by a layer located above the source. It is found that the parameters of the single-layer model best fitting the three spectral windows are 850, 800, and 800 K respectively for the H-2 gas temperature and 1.3 x 10(18), 1.5 x 10(20), and 1.3 x 10(20) cm(-2) for the H-2 self-absorbing vertical column respectively. Comparison between the H-2 column and a 1-D atmospheric model indicates that the short-wavelength FUV auroral emission originates from just above the homopause. This is confirmed by the high H-2 rovibrational temperatures, close to those deduced from spectral analyses of H-3(+) auroral emission. In a second approach, the synthetic spectral generator is coupled with a vertically distributed 3 energy degradation model, where the only input is the energy distribution of incoming electrons (multi-layer model). The model that best fits globally the three FUSE spectra is a sum of Maxwellian functions, with characteristic energies ranging from 1 to 100 keV, giving rise to an emission peak located at 5 mubar, that is similar to 100 km below the methane homopause. This multi-layer model is also applied to a re-analysis of the Hopkins Ultraviolet Telescope (HUT) auroral spectrum and accounts for the H2 self-absorption as well as the methane absorption. It is found that no additional discrete soft electron precipitation is necessary to fit either the FUSE or the HUT observations. (C) 2004 Elsevier Inc. All rights reserved. [less ▲]

Detailed reference viewed: 28 (13 ULg)
See detailJovian ion energy spectra - Ion stochastic acceleration by Alfven waves
Radioti, Aikaterini ULg; Krupp, N.; Woch, J. et al

Conference (2005)

Detailed reference viewed: 2 (0 ULg)
See detailJovian thermal structure inferred from the energy degradation of auroral electrons
Grodent, Denis ULg; Gérard, Jean-Claude ULg; Waite, J. H.

in Bulletin of the American Astronomical Society (1999, October 10)

A one--dimensional model has been developed to investigate the links between auroral heat input and the atmospheric temperature and composition structure of Jupiter. Different energy distributions are ... [more ▼]

A one--dimensional model has been developed to investigate the links between auroral heat input and the atmospheric temperature and composition structure of Jupiter. Different energy distributions are used to evaluate the importance of the energy spectrum of the incident electrons for the thermal balance of Jupiter's auroral thermosphere. Radiative cooling by H_3(+) and hydrocarbon (CH_4, C_2H_2) and downward conduction are calculated to solve the heat conduction equation. The values of observable quantities such as the altitude of the H_2 emission peak, infrared (IR) and ultraviolet (UV) emissions and temperatures associated with H_2 and H_3(+) optical signatures are used to constrain the parameters of the auroral electron energy distributions. From these simulations, it appears that the precipitated auroral energy is not able to directly provide the necessary heat to balance the hydrocarbon cooling below the homopause. It is suggested however that the auroral upper stratosphere is warmer than the equatorial upper stratosphere measured by Galileo. A Maxwellian energy distribution with a total flux of 20 ergs cm(-2) s(-1) and a characteristic energy of 22 keV added to a soft Maxwellian component of 1 erg cm(-2) s(-1) and 350 eV produces results in good agreement with thermospheric observations. [less ▲]

Detailed reference viewed: 13 (10 ULg)
See detailJovian thermal structure inferred from the energy degradation of auroral electrons.
Grodent, Denis ULg; Gérard, Jean-Claude ULg; Waite, J H, Jr

in Bulletin of the American Astronomical Society (1999)

Not Available

Detailed reference viewed: 11 (8 ULg)
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See detailLa joyeuse rentrée de l'eLearning
Verpoorten, Dominique ULg

Article for general public (2013)

Message clé : il faut s'intéresser aux moocs pour les chances et les menaces dont ils sont porteurs MAIS ils ne représentent pas le tout de l'eLearning

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See detailJPEG 2000
Van Droogenbroeck, Marc ULg

Learning material (2001)

Detailed reference viewed: 15 (3 ULg)
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See detailJuan Gabriel Vásquez: découvrir pourquoi ce qui est obscur continue de l'être
Vanden Berghe, Kristine ULg

Article for general public (2014)

Detailed reference viewed: 14 (3 ULg)
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See detailJuan José Saer, comentador de las versiones del Ulises
Willson, Patricia ULg

in Barnabé, Jean-Philippe; Vegh, Beatriz (Eds.) Proust y Joyce en ámbitos rioplatenses (2007)

The interpretation of the Spanish translations of Joyce’s Ulysses made by the Argentine writer Juan José Saer is the starting point for the elaboration of a series of topics related to literary import in ... [more ▼]

The interpretation of the Spanish translations of Joyce’s Ulysses made by the Argentine writer Juan José Saer is the starting point for the elaboration of a series of topics related to literary import in general and translation in Argentina in particular. In the first place, the influence exercised by the early versions of canonical literary texts in a specific literature; in the second place, the defence of the own dialectal variety when evaluating a translation. Finally, the view on a golden age of translation in Argentina is addressed, which implies not only to evaluate Santiago Rueda’s publishing project –where José Salas Subirat’s Ulysses was first published− during the 1940s, but also the reception of its translations among young artists and writers during the 1960s. [less ▲]

Detailed reference viewed: 101 (7 ULg)