Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailH0LiCOW - I. H0 Lenses in COSMOGRAIL's Wellspring: program overview
Suyu, S. H.; Bonvin, V.; Courbin, F. et al

in Monthly Notices of the Royal Astronomical Society (2017), 468

Strong gravitational lens systems with time delays between the multiple images allow measurements of time-delay distances, which are primarily sensitive to the Hubble constant that is key to probing dark ... [more ▼]

Strong gravitational lens systems with time delays between the multiple images allow measurements of time-delay distances, which are primarily sensitive to the Hubble constant that is key to probing dark energy, neutrino physics and the spatial curvature of the Universe, as well as discovering new physics. We present H0LiCOW (H[SUB]0[/SUB] Lenses in COSMOGRAIL's Wellspring), a program that aims to measure H[SUB]0[/SUB] with <3.5 per cent uncertainty from five lens systems (B1608+656, RXJ1131-1231, HE 0435-1223, WFI2033-4723 and HE 1104-1805). We have been acquiring (1) time delays through COSMOGRAIL and Very Large Array monitoring, (2) high-resolution Hubble Space Telescope imaging for the lens mass modelling, (3) wide-field imaging and spectroscopy to characterize the lens environment and (4) moderate-resolution spectroscopy to obtain the stellar velocity dispersion of the lenses for mass modelling. In cosmological models with one-parameter extension to flat Λ cold dark matter, we expect to measure H[SUB]0[/SUB] to <3.5 per cent in most models, spatial curvature Ω[SUB]k[/SUB] to 0.004, w to 0.14 and the effective number of neutrino species to 0.2 (1σ uncertainties) when combined with current cosmic microwave background (CMB) experiments. These are, respectively, a factor of ˜15, ˜2 and ˜1.5 tighter than CMB alone. Our data set will further enable us to study the stellar initial mass function of the lens galaxies, and the co-evolution of supermassive black holes and their host galaxies. This program will provide a foundation for extracting cosmological distances from the hundreds of time-delay lenses that are expected to be discovered in current and future surveys. [less ▲]

Detailed reference viewed: 21 (2 ULiège)
Full Text
Peer Reviewed
See detailH0LiCOW - II. Spectroscopic survey and galaxy-group identification of the strong gravitational lens system HE 0435-1223
Sluse, Dominique ULiege; Sonnenfeld, A.; Rumbaugh, N. et al

in Monthly Notices of the Royal Astronomical Society (2017), 470

Galaxies located in the environment or along the line of sight towards gravitational lenses can significantly affect lensing observables, and can lead to systematic errors on the measurement of H[SUB]0 ... [more ▼]

Galaxies located in the environment or along the line of sight towards gravitational lenses can significantly affect lensing observables, and can lead to systematic errors on the measurement of H[SUB]0[/SUB] from the time-delay technique. We present the results of a systematic spectroscopic identification of the galaxies in the field of view of the lensed quasar HE 0435-1223 using the W. M. Keck, Gemini and ESO-Very Large telescopes. Our new catalogue triples the number of known galaxy redshifts in the direct vicinity of the lens, expanding to 102 the number of measured redshifts for galaxies separated by less than 3 arcmin from the lens. We complement our catalogue with literature data to gather redshifts up to 15 arcmin from the lens, and search for galaxy groups or clusters projected towards HE 0435-1223. We confirm that the lens is a member of a small group that includes at least 12 galaxies, and find 8 other group candidates near the line of sight of the lens. The flexion shift, namely the shift of lensed images produced by high-order perturbation of the lens potential, is calculated for each galaxy/group and used to identify which objects produce the largest perturbation of the lens potential. This analysis demonstrates that (i) at most three of the five brightest galaxies projected within 12 arcsec of the lens need to be explicitly used in the lens models, and (ii) the groups can be treated in the lens model as an external tidal field (shear) contribution. [less ▲]

Detailed reference viewed: 27 (2 ULiège)
Full Text
Peer Reviewed
See detailH0LiCOW - III. Quantifying the effect of mass along the line of sight to the gravitational lens HE 0435-1223 through weighted galaxy counts★
Rusu, Cristian E.; Fassnacht, Christopher D.; Sluse, Dominique ULiege et al

in Monthly Notices of the Royal Astronomical Society (2017), 467

Based on spectroscopy and multiband wide-field observations of the gravitationally lensed quasar HE 0435-1223, we determine the probability distribution function of the external convergence κ[SUB]ext[/SUB ... [more ▼]

Based on spectroscopy and multiband wide-field observations of the gravitationally lensed quasar HE 0435-1223, we determine the probability distribution function of the external convergence κ[SUB]ext[/SUB] for this system. We measure the under/overdensity of the line of sight towards the lens system and compare it to the average line of sight throughout the Universe, determined by using the CFHTLenS (The Canada France Hawaii Lensing Survey) as a control field. Aiming to constrain κ[SUB]ext[/SUB] as tightly as possible, we determine under/overdensities using various combinations of relevant informative weighting schemes for the galaxy counts, such as projected distance to the lens, redshift and stellar mass. We then convert the measured under/overdensities into a κ[SUB]ext[/SUB] distribution, using ray-tracing through the Millennium Simulation. We explore several limiting magnitudes and apertures, and account for systematic and statistical uncertainties relevant to the quality of the observational data, which we further test through simulations. Our most robust estimate of κ[SUB]ext[/SUB] has a median value κ^med_ext = 0.004 and a standard deviation σ[SUB]κ[/SUB] = 0.025. The measured σ[SUB]κ[/SUB] corresponds to 2.5 per cent relative uncertainty on the time delay distance, and hence the Hubble constant H[SUB]0[/SUB] inferred from this system. The median κ^med_ext value varies by ˜0.005 with the adopted aperture radius, limiting magnitude and weighting scheme, as long as the latter incorporates galaxy number counts, the projected distance to the main lens and a prior on the external shear obtained from mass modelling. This corresponds to just ˜0.5 per cent systematic impact on H[SUB]0[/SUB]. The availability of a well-constrained κ[SUB]ext[/SUB] makes HE 0435-1223 a valuable system for measuring cosmological parameters using strong gravitational lens time delays. [less ▲]

Detailed reference viewed: 20 (1 ULiège)
Full Text
Peer Reviewed
See detailH0LiCOW - IV. Lens mass model of HE 0435-1223 and blind measurement of its time-delay distance for cosmology
Wong, Kenneth C.; Suyu, Sherry H.; Auger, Matthew W. et al

in Monthly Notices of the Royal Astronomical Society (2017), 465

Strong gravitational lenses with measured time delays between the multiple images allow a direct measurement of the time-delay distance to the lens, and thus a measure of cosmological parameters ... [more ▼]

Strong gravitational lenses with measured time delays between the multiple images allow a direct measurement of the time-delay distance to the lens, and thus a measure of cosmological parameters, particularly the Hubble constant, H[SUB]0[/SUB]. We present a blind lens model analysis of the quadruply imaged quasar lens HE 0435-1223 using deep Hubble Space Telescope imaging, updated time-delay measurements from the COSmological MOnitoring of GRAvItational Lenses (COSMOGRAIL), a measurement of the velocity dispersion of the lens galaxy based on Keck data, and a characterization of the mass distribution along the line of sight. HE 0435-1223 is the third lens analysed as a part of the H[SUB]0[/SUB] Lenses in COSMOGRAIL's Wellspring (H0LiCOW) project. We account for various sources of systematic uncertainty, including the detailed treatment of nearby perturbers, the parametrization of the galaxy light and mass profile, and the regions used for lens modelling. We constrain the effective time-delay distance to be D_{Δ t}= 2612_{-191}^{+208} Mpc, a precision of 7.6 per cent. From HE 0435-1223 alone, we infer a Hubble constant of H[SUB]0[/SUB] = 73.1_{-6.0}^{+5.7} km s^{-1 Mpc^{-1}} assuming a flat ΛCDM cosmology. The cosmographic inference based on the three lenses analysed by H0LiCOW to date is presented in a companion paper (H0LiCOW Paper V). [less ▲]

Detailed reference viewed: 14 (0 ULiège)
Full Text
Peer Reviewed
See detailH0LiCOW - V. New COSMOGRAIL time delays of HE 0435-1223: H0 to 3.8 per cent precision from strong lensing in a flat ΛCDM model
Bonvin, V.; Courbin, F.; Suyu, S. H. et al

in Monthly Notices of the Royal Astronomical Society (2017), 465

We present a new measurement of the Hubble Constant H[SUB]0[/SUB] and other cosmological parameters based on the joint analysis of three multiply imaged quasar systems with measured gravitational time ... [more ▼]

We present a new measurement of the Hubble Constant H[SUB]0[/SUB] and other cosmological parameters based on the joint analysis of three multiply imaged quasar systems with measured gravitational time delays. First, we measure the time delay of HE 0435-1223 from 13-yr light curves obtained as part of the COSMOGRAIL project. Companion papers detail the modelling of the main deflectors and line-of-sight effects, and how these data are combined to determine the time-delay distance of HE 0435-1223. Crucially, the measurements are carried out blindly with respect to cosmological parameters in order to avoid confirmation bias. We then combine the time-delay distance of HE 0435-1223 with previous measurements from systems B1608+656 and RXJ1131-1231 to create a Time Delay Strong Lensing probe (TDSL). In flat Λ cold dark matter (ΛCDM) with free matter and energy density, we find H[SUB]0[/SUB] =71.9^{+2.4}_{-3.0} {km s^{-1} Mpc^{-1}} and Ω _{Λ }=0.62^{+0.24}_{-0.35}. This measurement is completely independent of, and in agreement with, the local distance ladder measurements of H[SUB]0[/SUB]. We explore more general cosmological models combining TDSL with other probes, illustrating its power to break degeneracies inherent to other methods. The joint constraints from TDSL and Planck are H[SUB]0[/SUB] = 69.2_{-2.2}^{+1.4} {km s^{-1} Mpc^{-1}}, Ω _{Λ }=0.70_{-0.01}^{+0.01} and Ω _k=0.003_{-0.006}^{+0.004} in open ΛCDM and H[SUB]0[/SUB] =79.0_{-4.2}^{+4.4} {km s^{-1} Mpc^{-1}}, Ω _de=0.77_{-0.03}^{+0.02} and w=-1.38_{-0.16}^{+0.14} in flat wCDM. In combination with Planck and baryon acoustic oscillation data, when relaxing the constraints on the numbers of relativistic species we find N[SUB]eff[/SUB] = 3.34_{-0.21}^{+0.21} in N[SUB]eff[/SUB]ΛCDM and when relaxing the total mass of neutrinos we find Σm[SUB]ν[/SUB] ≤ 0.182 eV in m[SUB]ν[/SUB]ΛCDM. Finally, in an open wCDM in combination with Planck and cosmic microwave background lensing, we find H[SUB]0[/SUB] =77.9_{-4.2}^{+5.0} {km s^{-1} Mpc^{-1}}, Ω _de=0.77_{-0.03}^{+0.03}, Ω _k=-0.003_{-0.004}^{+0.004} and w=-1.37_{-0.23}^{+0.18}. [less ▲]

Detailed reference viewed: 20 (0 ULiège)
Full Text
Peer Reviewed
See detailH0LiCOW VII: cosmic evolution of the correlation between black hole mass and host galaxy luminosity
Ding, Xuheng; Treu, Tommaso; Suyu, Sherry H. et al

in Monthly Notices of the Royal Astronomical Society (2017), 472

Strongly lensed active galactic nuclei (AGN) provide a unique opportunity to make progress in the study of the evolution of the correlation between the mass of supermassive black holes (M_BH) and their ... [more ▼]

Strongly lensed active galactic nuclei (AGN) provide a unique opportunity to make progress in the study of the evolution of the correlation between the mass of supermassive black holes (M_BH) and their host galaxy luminosity (L[SUB]host[/SUB]). We demonstrate the power of lensing by analysing two systems for which state-of-the-art lens modelling techniques have been applied to deep Hubble Space Telescope imaging data. We use (i) the reconstructed images to infer the total and bulge luminosity of the host and (ii) published broad-line spectroscopy to estimate M_BH using the so-called virial method. We then enlarge our sample with new calibration of previously published measurements to study the evolution of the correlation out to z ˜ 4.5. Consistent with previous work, we find that without taking into account passive luminosity evolution, the data points lie on the local relation. Once the passive luminosity evolution is taken into account, we find that black holes in the more distant Universe reside in less luminous galaxies than today. Fitting this offset as M_BH/L[SUB]host[/SUB] ∝ (1 + z)[SUP]γ[/SUP], and taking into account selection effects, we obtain γ = 0.6 ± 0.1 and 0.8 ± 0.1 for the case of M_BH-L[SUB]bulge[/SUB] and M_BH-L[SUB]total[/SUB], respectively. To test for systematic uncertainties and selection effects we also consider a reduced sample that is homogeneous in data quality. We find consistent results but with considerably larger uncertainty due to the more limited sample size and redshift coverage (γ = 0.7 ± 0.4 and 0.2 ± 0.5 for M_BH-L[SUB]bulge[/SUB] and M_BH-L[SUB]total[/SUB], respectively), highlighting the need to gather more high-quality data for high-redshift lensed quasar hosts. Our result is consistent with a scenario where the growth of the black hole predates that of the host galaxy. [less ▲]

Detailed reference viewed: 18 (1 ULiège)
Full Text
Peer Reviewed
See detailH0LiCOW. VI. Testing the fidelity of lensed quasar host galaxy reconstruction
Ding, Xuheng; Liao, Kai; Treu, Tommaso et al

in Monthly Notices of the Royal Astronomical Society (2017), 465

The empirical correlation between the mass of a supermassive black hole (M_BH) and its host galaxy properties is widely considered to be an evidence of their co-evolution. A powerful way to test the co ... [more ▼]

The empirical correlation between the mass of a supermassive black hole (M_BH) and its host galaxy properties is widely considered to be an evidence of their co-evolution. A powerful way to test the co-evolution scenario and learn about the feedback processes linking galaxies and nuclear activity is to measure these correlations as a function of redshift. Unfortunately, currently M_BH can only be estimated in active galaxies at cosmological distances. At these distances, bright active galactic nuclei (AGNs) can outshine the host galaxy, making it extremely difficult to measure the host's luminosity. Strongly lensed AGNs provide in principle a great opportunity to improve the sensitivity and accuracy of the host galaxy luminosity measurements as the host galaxy is magnified and more easily separated from the point source, provided the lens model is sufficiently accurate. In order to measure the M_BH-L correlation with strong lensing, it is necessary to ensure that the lens modelling is accurate, and that the host galaxy luminosity can be recovered to at least a precision and accuracy better than that of the typical M_BH measurement. We carry out extensive and realistic simulations of deep Hubble Space Telescope observations of lensed AGNs obtained by our collaboration. We show that the host galaxy luminosity can be recovered with better accuracy and precision than the typical uncertainty in M_BH(˜0.5 dex) for hosts as faint as 2-4 mag dimmer than the AGN itself. Our simulations will be used to estimate bias and uncertainties in the actual measurements to be presented in a future paper. [less ▲]

Detailed reference viewed: 28 (0 ULiège)
Full Text
Peer Reviewed
See detailH1N1 vaccines in a large observational cohort of patients with inflammatory bowel disease treated with immunomodulators and biological therapy.
Rahier, Jean-Francois; Papay, Pavol; Salleron, Julia et al

in Gut (2011), 60(4), 456-62

BACKGROUND: Safety data are lacking on influenza vaccination in general and on A (H1N1)v vaccination in particular in patients with inflammatory bowel disease (IBD) receiving immmunomodulators and/or ... [more ▼]

BACKGROUND: Safety data are lacking on influenza vaccination in general and on A (H1N1)v vaccination in particular in patients with inflammatory bowel disease (IBD) receiving immmunomodulators and/or biological therapy. AIMS AND METHODS: The authors conducted a multicentre observational cohort study to evaluate symptoms associated with influenza H1N1 adjuvanted (Pandemrix, Focetria, FluvalP) and non-adjuvanted (Celvapan) vaccines and to assess the risk of flare of IBD after vaccination. Patients with stable IBD treated with immunomodulators and/or biological therapy were recruited from November 2009 until March 2010 in 12 European countries. Harvey-Bradshaw Index and Partial Mayo Score were used to assess disease activity before and 4 weeks after vaccination in Crohn's disease (CD) and ulcerative colitis (UC). Vaccination-related events up to 7 days after vaccination were recorded. RESULTS: Of 575 patients enrolled (407 CD, 159 UC and nine indeterminate colitis; 53.9% female; mean age 40.3 years, SD 13.9), local and systemic symptoms were reported by 34.6% and 15.5% of patients, respectively. The most common local and systemic reactions were pain in 32.8% and fatigue in 6.1% of subjects. Local symptoms were more common with adjuvanted (39.3%) than non-adjuvanted (3.9%) vaccines (p < 0.0001), whereas rates of systemic symptoms were similar with both types (15.0% vs 18.4%, p = 0.44). Among the adjuvanted group, Pandemrix more often induced local reactions than FluvalP and Focetria (51.2% vs 27.6% and 15.4%, p < 0.0001). Solicited adverse events were not associated with any patient characteristics, specific immunomodulatory treatment, or biological therapy. Four weeks after vaccination, absence of flare was observed in 377 patients with CD (96.7%) and 151 with UC (95.6%). CONCLUSION: Influenza A (H1N1)v vaccines are well tolerated in patients with IBD. Non-adjuvanted vaccines are associated with fewer local reactions. The risk of IBD flare is probably not increased after H1N1 vaccination. [less ▲]

Detailed reference viewed: 42 (3 ULiège)
Full Text
See detailH2O retrievals from Jungfraujoch infrared spectra: some spectroscopic problems.
Demoulin, Philippe ULiege; Trabelsi, Samy; Mahieu, Emmanuel ULiege et al

in Proceedings of the 8th Atmospheric Spectroscopy Applications Meeting (2008)

Since 1949, solar absorption spectra have been acquired at the Jungfraujoch observatory (Swiss Alps, 46.5°N, 8.0°E, 3580 m a.s.l.), first with grating spectrometers, then with Fourier transform infrared ... [more ▼]

Since 1949, solar absorption spectra have been acquired at the Jungfraujoch observatory (Swiss Alps, 46.5°N, 8.0°E, 3580 m a.s.l.), first with grating spectrometers, then with Fourier transform infrared (FTIR) spectrometers. Most observations collected with these instruments encompass water vapor absorptions, even the narrow spectral domains regularly recorded with the grating instruments to monitor the evolution of important atmospheric constituents. The aim of this work is to analyze all available spectra containing usable H2O absorption lines, to derive a long-term record of its total column in the atmosphere above the Jungfraujoch. In addition, more recent FTIR broadband spectra, with better signal-to-noise ratio and resolution, will be analyzed with state of the art algorithm, in order to derive information on the vertical distribution of H2O. [less ▲]

Detailed reference viewed: 31 (5 ULiège)
Full Text
Peer Reviewed
See detailH2SO4 photolysis: A source of sulfur dioxide in the upper stratosphere
Rinsland, C. P.; Gunson, M. R.; Ko, M. K. W. et al

in Geophysical Research Letters (1995), 22(9), 1109--1112

Detailed reference viewed: 11 (0 ULiège)
Peer Reviewed
See detailH3-receptor regulation of vascular gastrin and somatostatin releases by the isolated rat stomach.
Bado, A.; Moizo, L.; Laigneau, J. P. et al

in Yale Journal of Biology and Medicine (The) (1994), 67(3-4), 113-121

We have studied the effects of the H3-receptor agonist (R) alpha-methylhistamine [(R) alpha-MeHA] and the H3-receptor antagonist thioperamide (Thiop) on basal- and carbachol-stimulated vascular gastrin ... [more ▼]

We have studied the effects of the H3-receptor agonist (R) alpha-methylhistamine [(R) alpha-MeHA] and the H3-receptor antagonist thioperamide (Thiop) on basal- and carbachol-stimulated vascular gastrin release (GR) and somatostatin release (SR) by the isolated rat stomach. Carbachol dose-dependently stimulated and inhibited GR and SR, respectively. Maximal stimulation of GR (500 +/- 112 percent of basal; p < .01), and maximal inhibition of SR (-62 +/- 9 percent under basal; p < .01) were obtained with 1 micron carbachol. Neither (R)alpha-MeHA nor Thiop, up to 10 microns, affected GR. However, SR was dose-dependently enhanced by Thiop (25 +/- 8 percent for 10 microns). Carbachol stimulation of GR was strongly inhibited by Thiop (30 +/- 7 percent for 100 nM and 73 +/- 14 percent for 1 microgram), whereas it was potentiated by (R)alpha-MeHA. Carbachol inhibition of SR was reversed by Thiop and (R)alpha-MeHA. However, the reversal effect of (R)alpha-MeHA was prevented by the CCKB/gastrin receptor antagonist PD134308. These results support H3-receptor regulation of basal and cholinergically-stimulated GR and SR. [less ▲]

Detailed reference viewed: 25 (2 ULiège)
Full Text
Peer Reviewed
See detailH4 Histamine Receptors Mediate Cell Cycle Arrest in Growth Factor-Induced Murine and Human Hematopoietic Progenitor Cells
Petit-Bertron, Anne France; Machavoine, François; Defresne, Marie-Paule ULiege et al

in PLoS ONE (2009), 4(8), 1-13

Detailed reference viewed: 53 (12 ULiège)
See detailH50, estimateur d’indice de productivité
Perin, Jérôme ULiege; De Thier, Olivier ULiege

Computer development (2014)

H50 est un outil qui permet l’estimation de l’indice de productivité de divers peuplements purs équiennes, tant résineux que feuillus. Il intègre, au sein d’une interface simple d’utilisation, les modèles ... [more ▼]

H50 est un outil qui permet l’estimation de l’indice de productivité de divers peuplements purs équiennes, tant résineux que feuillus. Il intègre, au sein d’une interface simple d’utilisation, les modèles de productivité les plus récents développés par les scientifiques de Gembloux Agro-Bio Tech pour l’épicéa, le douglas, les mélèzes, le bouleau verruqueux, le merisier, l’érable sycomore, les chênes indigènes et le robinier. Les données nécessaires à son utilisation sont l’essence, une mesure de hauteur dominante et l’âge du peuplement au moment de la mesure. L’outil se présente sous la forme d’une feuille de calcul qui permet le traitement simultané de données issues de plusieurs peuplements de diverses essences. Il est également possible de directement y copier-coller des données issues de documents encodés sous Microsoft Access ou Excel par exemple. Cet outil a été développé avec l’appui des Services Publics de Wallonie (Département de la Nature et des Forêts, Accord-Cadre Recherche et Vulgarisation forestières). [less ▲]

Detailed reference viewed: 60 (21 ULiège)
Full Text
Peer Reviewed
See detailH5N1 avian influenza virus infection in cats. ABCD guidelines on prevention and management
Thiry, Etienne ULiege; Addie, D.; Belak, B. et al

in Journal of Feline Medicine and Surgery (2009), 11

Detailed reference viewed: 51 (2 ULiège)
See detailH[SUB]2[/SUB] temperature and self-absorption: analysis of Jovian auroral spectra obtained with the FUSE satellite
Gustin, Jacques ULiege; Feldman, P. D.; Gérard, Jean-Claude ULiege et al

in Bulletin of the American Astronomical Society (2001, November 01)

High-resolution spectra of the Jovian aurora have been obtained with unprecedented spectral resolution in the 900-1190 Ì· window with the the Far Ultraviolet Spectroscopic Explorer (FUSE), using the 30 ... [more ▼]

High-resolution spectra of the Jovian aurora have been obtained with unprecedented spectral resolution in the 900-1190 Ì· window with the the Far Ultraviolet Spectroscopic Explorer (FUSE), using the 30"x30" LWRS aperture. All observed features belong to the H[SUB]2[/SUB] transitions from the B, C, B', D, B" and D' electronic states to the ground-state. These emissions are excited by inelastic collisions of the primary and secondary auroral electrons with H[SUB]2[/SUB] molecules. The relative intensity distribution of the observed lines depends on the rotational temperature of the emitting layer and self-absorption. Below 1100 Ì· , the transitions leading to the v" = 0, 1 and 2 levels of ground-state are partially or totally absorbed by H[SUB]2[/SUB], giving indications about the vibrational H[SUB]2[/SUB] distribution and overlying column. After a validation with an unabsorbed and a self-absorbed laboratory spectrum obtained in controlled conditions (100K, 300 eV), this study compares the observations and synthetic spectra, generated by a code including the B, C and B', D, B" and D' Rydberg states. The rotational and vibrational H[SUB]2[/SUB] temperatures are determined as well as the overlying H[SUB]2[/SUB] column. The combination of these parameters is used to determine the depth of the auroral energy deposition. This work is based on data obtained for the Guaranteed Time Team by the NASA-CNES-CSA FUSE mission operated by the Johns Hopkins University. French participants are supported by CNES. Financial support to U.S. participants has been provided by NASA contract NAS5-32985. [less ▲]

Detailed reference viewed: 39 (2 ULiège)
Full Text
See detailHa INTRAARTICULAR INJECTION: THERAPEUTIC AND ECONOMIC CONSIDERATIONS
Henrotin, Yves ULiege

Conference (2015, December 12)

Detailed reference viewed: 13 (0 ULiège)
Full Text
See detailHa una pistola per eliminare mio marito?
D'Amore, Salvatore ULiege

in Ecologia della Mente (2004), 26(1), 71-102

Recent theoretical and clinical contributions of elderly couple with alcoholic partner underlies the usefulness of pragmatic/interactive and semantic/symbolic approach of symptomatic situation ... [more ▼]

Recent theoretical and clinical contributions of elderly couple with alcoholic partner underlies the usefulness of pragmatic/interactive and semantic/symbolic approach of symptomatic situation. Particularly, alcohol-dependance is understood as related to developmental tasks, resources and bonds of life-cycle of elderly age. A psychotherapeutic process of elderly couple is narrated. This work is caractherized by the following phases: alcoholistic symptom control, individual and family story narration and renegociation and reshaping of couple spaces/times. Symptom gradual dissolution has permitted the relaunching of individual, couple and familial planning as a fundamental dimension for improving general quality life of elderly couple. [less ▲]

Detailed reference viewed: 71 (5 ULiège)
Full Text
See detailHA viscosupplEmentation in OA treatment
Henrotin, Yves ULiege

Conference (2015, March 03)

Detailed reference viewed: 23 (1 ULiège)
Full Text
Peer Reviewed
See detailHaben die Zikaden eine Stimme? Anmerkungen zum Zirpen der Grillen in den Zikaden Ingeborg Bachmanns
Vanhaegendoren, Koen ULiege

in Il confronto letterario (2005), 43

Detailed reference viewed: 164 (3 ULiège)
Full Text
Peer Reviewed
See detailHabenular Neurogenesis in Zebrafish Is Regulated by a Hedgehog, Pax6 Proneural Gene Cascade
Halluin, Caroline; Madelaine, Romain; Naye, Francois et al

in PLoS ONE (2016), 11(7), 0158210

The habenulae are highly conserved nuclei in the dorsal diencephalon that connect the forebrain to the midbrain and hindbrain. These nuclei have been implicated in a broad variety of behaviours in humans ... [more ▼]

The habenulae are highly conserved nuclei in the dorsal diencephalon that connect the forebrain to the midbrain and hindbrain. These nuclei have been implicated in a broad variety of behaviours in humans, primates, rodents and zebrafish. Despite this, the molecular mechanisms that control the genesis and differentiation of neural progenitors in the habenulae remain relatively unknown. We have previously shown that, in zebrafish, the timing of habenular neurogenesis is left-right asymmetric and that in the absence of Nodal signalling this asymmetry is lost. Here, we show that habenular neurogenesis requires the homeobox transcription factor Pax6a and the redundant action of two proneural bHLH factors, Neurog1 and Neurod4. We present evidence that Hedgehog signalling is required for the expression of pax6a, which is in turn necessary for the expression of neurog1 and neurod4. Finally, we demonstrate by pharmacological inhibition that Hedgehog signalling is required continuously during habenular neurogenesis and by cell transplantation experiments that pathway activation is required cell autonomously. Our data sheds light on the mechanism underlying habenular development that may provide insights into how Nodal signalling imposes asymmetry on the timing of habenular neurogenesis. [less ▲]

Detailed reference viewed: 12 (2 ULiège)