References of "Müller, S"
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See detailGenetic and functional evidence for a role of CYLD in Crohn’s Disease: results from a European consortium
Cleynen, I; Vazeille, E; Artieda, M et al

in Journal of Crohn’s and Colitis [=JCC] (2012, February)

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See detailMultiple functional variants at the 3p21 locus contribute to ulcerative colitis: Results from a European consortium
Cleynen, I; Artieda, M; Verspaget, H et al

in Journal of Crohn’s and Colitis [=JCC] (2012, February)

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See detailA Herschel resolved far-infrared dust ring around HD 207129
Marshall, J. P.; Löhne, T.; Montesinos, B. et al

in Astronomy and Astrophysics (2011), 529

Context. Dusty debris discs around main sequence stars are thought to be the result of continuous collisional grinding of planetesimals in the system. The majority of these systems are unresolved and ... [more ▼]

Context. Dusty debris discs around main sequence stars are thought to be the result of continuous collisional grinding of planetesimals in the system. The majority of these systems are unresolved and analysis of the dust properties is limited by the lack of information regarding the dust location. <BR /> Aims: The Herschel DUNES key program is observing 133 nearby, Sun-like stars (<20 pc, FGK spectral type) in a volume limited survey to constrain the absolute incidence of cold dust around these stars by detection of far infrared excess emission at flux levels comparable to the Edgeworth-Kuiper belt (EKB). <BR /> Methods: We have observed the Sun-like star HD 207129 with Herschel PACS and SPIRE. In all three PACS bands we resolve a ring-like structure consistent with scattered light observations. Using α Boötis as a reference point spread function (PSF), we deconvolved the images, clearly resolving the inner gap in the disc at both 70 and 100 μm. <BR /> Results: We have resolved the dust-producing planetesimal belt of a debris disc at 100 μm for the first time. We measure the radial profile and fractional luminosity of the disc, and compare the values to those of discs around stars of similar age and/or spectral type, placing this disc in context of other resolved discs observed by Herschel/DUNES. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. [less ▲]

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See detailResolving the cold debris disc around a planet-hosting star. PACS photometric imaging observations of q1 Eridani (HD 10647, HR 506)
Liseau, R.; Eiroa, C.; Fedele, D. et al

in Astronomy and Astrophysics (2010), 518

Context. About two dozen exo-solar debris systems have been spatially resolved. These debris discs commonly display a variety of structural features such as clumps, rings, belts, excentric distributions ... [more ▼]

Context. About two dozen exo-solar debris systems have been spatially resolved. These debris discs commonly display a variety of structural features such as clumps, rings, belts, excentric distributions and spiral patterns. In most cases, these features are believed to be formed, shaped and maintained by the dynamical influence of planets orbiting the host stars. In very few cases has the presence of the dynamically important planet(s) been inferred from direct observation. Aims. The solar-type star q1 Eri is known to be surrounded by debris, extended on scales of 30”. The star is also known to host at least one planet, albeit on an orbit far too small to make it responsible for structures at distances of tens to hundreds of AU. The aim of the present investigation is twofold: to determine the optical and material properties of the debris and to infer the spatial distribution of the dust, which may hint at the presence of additional planets. Methods. The Photodetector Array Camera and Spectrometer (PACS) aboard the Herschel Space Observatory allows imaging observations in the far infrared at unprecedented resolution, i.e. at better than 6” to 12” over the wavelength range of 60 μm to 210 μm. Together with the results from ground-based observations, these spatially resolved data can be modelled to determine the nature of the debris and its evolution more reliably than what would be possible from unresolved data alone. Results. For the first time has the q1 Eri disc been resolved at far infrared wavelengths. The PACS observations at 70 μm, 100 μm and 160 μm reveal an oval image showing a disc-like structure in all bands, the size of which increases with wavelength. Assuming a circular shape yields the inclination of its equatorial plane with respect to that of the sky, i > 53°. The results of image de-convolution indicate that i likely is larger than 63°, where 90° corresponds to an edge-on disc. Conclusions. The observed emission is thermal and optically thin. The resolved data are consistent with debris at temperatures below 30 K at radii larger than 120 AU. From image de-convolution, we find that q1 Eri is surrounded by an about 40 AU wide ring at the radial distance of ~85 AU. This is the first real Edgeworth-Kuiper Belt analogue ever observed. [less ▲]

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See detailCold DUst around NEarby Stars (DUNES). First results. A resolved exo-Kuiper belt around the solar-like star ζ2 Ret
Eiroa, C.; Fedele, D.; Maldonado, J. et al

in Astronomy and Astrophysics (2010), 518

We present the first far-IR observations of the solar-type stars δ Pav, HR 8501, 51 Peg and ζ2 Ret, taken within the context of the DUNES Herschel open time key programme (OTKP). This project uses the ... [more ▼]

We present the first far-IR observations of the solar-type stars δ Pav, HR 8501, 51 Peg and ζ2 Ret, taken within the context of the DUNES Herschel open time key programme (OTKP). This project uses the PACS and SPIRE instruments with the objective of studying infrared excesses due to exo-Kuiper belts around nearby solar-type stars. The observed 100 μm fluxes from δ Pav, HR 8501, and 51 Peg agree with the predicted photospheric fluxes, excluding debris disks brighter than Ldust/ ~ 5 × 10-7 (1σ level) around those stars. A flattened, disk-like structure with a semi-major axis of ~100 AU in size is detected around ζ2 Ret. The resolved structure suggests the presence of an eccentric dust ring, which we interpret as an exo-Kuiper belt with Ldust/ ≈ 10-5. [less ▲]

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See detailA model for assessing water chemistry by using aquatic bryophyte assemblages in north-eastern France
Vanderpoorten, Alain ULg; Thiébaut, G.; Trémolières, M. et al

in Verhandlungen der Internationalen Vereinigung für Theoretische und Angewandte Limnologie = Proceedings of the International Association of Theoretical and Applied Limnology (2001), 27

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See detailEtude et modélisation du phytobenthos dans différents types de rivières du bassin Rhin-Meuse; synthèse.
Descy, Jean-Pierre; Leglize, Lionel; Laforge, Philippe et al

Report (2000)

Dans le cadre de l'application du modèle mathématique PEGASE au bassin Rhin-Meuse, le sous-modèle relatif au phytobenthos a été amélioré par une description plus fidèle du compartiment « macrophytes ». Un ... [more ▼]

Dans le cadre de l'application du modèle mathématique PEGASE au bassin Rhin-Meuse, le sous-modèle relatif au phytobenthos a été amélioré par une description plus fidèle du compartiment « macrophytes ». Un suivi régulier a été mené, de 1996 à 1999, sur une dizaine de cours d'eau représentatifs de la diversité hydrologique, géomorphologique et géochimique du bassin Rhin-Meuse. L'évolution annuelle des biomasses a permis de définir trois grands types de végétation : cours d'eau à renoncules peltées ou à pinceaux (grès ou granites); cours d'eau à renoncules flottantes (calcaires); cours d'eau à potamot pectiné (marnes-argiles). Une modélisation non stationnaire de la croissance du phytobenthos a été réalisée sur 5 tronçons de rivière. Ces renseignements, ainsi que l'ensemble des 'données terrains' recueillies sous forme d’une base de données, ont permis d'améliorer prochainement le sous-modèle 'phytobenthos' [less ▲]

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See detailComplete Dna-Sequence Of Yeast Chromosome-Xi
Dujon, Bernard; Esteban, Pf.; Fernandes, L. et al

in Nature (1994), 369(6479),

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See detailUltrastructural distribution of histones within Ehrlich tumor cell nucleoli: a cytochemical and immunocytochemical study.
Thiry, Marc ULg; Muller, S.

in Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society (1989), 37(6), 853-62

We investigated the ultrastructural distribution of histones within Ehrlich tumor cell nucleoli by means of three cytochemical methods and by a Lowicryl post-embedding immunogold labeling procedure ... [more ▼]

We investigated the ultrastructural distribution of histones within Ehrlich tumor cell nucleoli by means of three cytochemical methods and by a Lowicryl post-embedding immunogold labeling procedure involving anti-histone (H2B, H3, H4) antisera as well as antibodies to synthetic peptides of histones. With the two technical approaches, labeling was particularly concentrated over the perinucleolar chromatin and over its intranucleolar invaginations which penetrate the nucleolar body and come in close contact with the fibrillar centers. Furthermore, the high-resolution immunocytochemical technique revealed the presence of a small amount of the three histones in the fibrillar centers, preferentially located towards their peripheral regions. In addition, colocalization of DNA at all the histone-positive sites could be visualized after double immunogold staining using a monoclonal anti-DNA antibody and the anti-histone antisera. These results appear to indicate that all the DNA detected within the nucleolus was associated with histones. This finding suggests that the ribosomal DNA, including transcriptionally active genes, is bound to histones. [less ▲]

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See detailReactivity of autoantibodies in systemic lupus erythematosus with synthetic core histone peptides.
Muller, S.; Bonnier, D.; Thiry, Marc ULg et al

in International Archives of Allergy and Applied Immunology (1989), 89(2-3), 288-96

The specificity of autoantibodies present in the serum of 151 patients with systemic lupus erythematosus (SLE) was investigated by ELISA using as antigen individual histones as well as 17 different core ... [more ▼]

The specificity of autoantibodies present in the serum of 151 patients with systemic lupus erythematosus (SLE) was investigated by ELISA using as antigen individual histones as well as 17 different core histone synthetic peptides. Many of the sera reacted with four terminal peptides (residues 1-21 and 130-135 of H3, 1-29 of H4 and 1-25 of H2B) while fewer reacted with internal peptides (residues 65-85 of H2A and 40-55 of H3). Of the 151 SLE sera, 88% reacted with one or more of the six core histone peptides whereas only 57% reacted with one or more of the complete core histone molecules. Antibodies to mononucleosomes from chicken erythrocytes were also prepared in rabbits. The rabbit antisera were tested by ELISA using as antigen chromatin subunits, native and denatured DNA, individual histones and 23 natural and synthetic peptides of histones. The antinucleosome antibodies were found to recognize the same peptide fragments as those recognized by the SLE sera. [less ▲]

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