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See detailLes hélicobactéries chez les animaux domestiques. Mythe ou réalité? Synthèse des connaissances
Thomas, A.; Mainil, Jacques ULg

in Annales de Médecine Vétérinaire (1998), 142

Detailed reference viewed: 9 (0 ULg)
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See detailLes hélicobactéries chez les animaux mythe ou réalité? 2. Etudes bactériologique et clinique préliminaires chez les carnivores domestiques
Thomas, A.; Hardy, N.; De Mol, P. et al

in Annales de Médecine Vétérinaire (1999), 143

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See detailHéliodermie, héliophiles et héliophobes.
Quatresooz, Pascale ULg; Uhoda, I.; Pierard, Claudine ULg et al

in Revue Médicale de Liège (2005), 60 Suppl 1

The cumulative effect of lifelong sun exposures induces skin alterations which are coined helioderma. The manifestations of helioderma vary according to the body site. This is particularly the case for ... [more ▼]

The cumulative effect of lifelong sun exposures induces skin alterations which are coined helioderma. The manifestations of helioderma vary according to the body site. This is particularly the case for the prominent differences in the expression of solar elastosis. This condition is commonly more severe on the face and nape of the neck than on the forearms and back of the hands. The age, phototype and behaviour regarding sun exposure are cofactors responsible for the severity of solar elastosis. [less ▲]

Detailed reference viewed: 41 (1 ULg)
See detailHelioseismic Spectral Diagnostics - An Update
Leibacher, John W; Baudin, F.; Belkacem, Kevin ULg et al

in AAS/Solar Physics Division Meeting (2009, May 01)

In order to test models of the excitation of p modes and their behavior in the visible atmosphere, we calculate time sequences of Fraunhofer absorption line profiles of the Ni, Fe, K, Na, and Ca lines ... [more ▼]

In order to test models of the excitation of p modes and their behavior in the visible atmosphere, we calculate time sequences of Fraunhofer absorption line profiles of the Ni, Fe, K, Na, and Ca lines used in helioseismology, focusing on Sun-as-a-star observations in this initial work. The atmospheric models, which give rise to the line profiles, are based on the VAL-C, perturbed by realistic p-mode eigenfunctions. The time sequences of line profiles are analyzed as for various instruments, to compare predicted and observed mode amplitudes as a function of temporal frequency [less ▲]

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See detailHelioseismic Tests of the New Los Alamos LEDCOP Opacities
Neuforge-Verheecke, C.; Guzik, J. A.; Keady, J. J. et al

in Astrophysical Journal (2001), 561(1), 450-454

We compare the helioseismic properties of two solar models, one calibrated with the OPAL opacities and the other with the recent Los Alamos LEDCOP (Light Element Detailed Configuration Opacity) opacities ... [more ▼]

We compare the helioseismic properties of two solar models, one calibrated with the OPAL opacities and the other with the recent Los Alamos LEDCOP (Light Element Detailed Configuration Opacity) opacities. We show that, in the radiative interior of the Sun, the small differences between the two sets of opacities (up to 6% near the base of the convection zone) lead to noticeable differences in the solar structure (up to 0.3% in sound speed), with the OPAL model being the closest to the helioseismic data. More than half of the difference between the two opacity sets results from the interpolation scheme and from the relatively widely spaced temperature grids used in the tables. The remaining 3% intrinsic difference between the OPAL and the LEDCOP opacities in the radiative interior of the Sun is well within the error bars on the opacity calculations resulting from the uncertainties on the physics. We conclude that both the OPAL and LEDCOP opacities produce solar models in close agreement with helioseismic inferences, but discrepancies still persist at the level of 0.6% between the calculated and inferred sound speed in the radiative interior of the Sun. [less ▲]

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See detailThe Heliospheric Imagers Onboard the STEREO Mission
Eyles, C. J.; Harrison, R. A.; Davis, C. et al

in Solar Physics (2009), 254

Mounted on the sides of two widely separated spacecraft, the two Heliospheric Imager (HI) instruments onboard NASA's STEREO mission view, for the first time, the space between the Sun and Earth. These ... [more ▼]

Mounted on the sides of two widely separated spacecraft, the two Heliospheric Imager (HI) instruments onboard NASA's STEREO mission view, for the first time, the space between the Sun and Earth. These instruments are wide-angle visible-light imagers that incorporate sufficient baffling to eliminate scattered light to the extent that the passage of solar coronal mass ejections (CMEs) through the heliosphere can be detected. Each HI instrument comprises two cameras, HI-1 and HI-2, which have 20° and 70° fields of view and are off-pointed from the Sun direction by 14.0° and 53.7°, respectively, with their optical axes aligned in the ecliptic plane. This arrangement provides coverage over solar elongation angles from 4.0° to 88.7° at the viewpoints of the two spacecraft, thereby allowing the observation of Earth-directed CMEs along the Sun -- Earth line to the vicinity of the Earth and beyond. Given the two separated platforms, this also presents the first opportunity to view the structure and evolution of CMEs in three dimensions. The STEREO spacecraft were launched from Cape Canaveral Air Force Base in late October 2006, and the HI instruments have been performing scientific observations since early 2007. The design, development, manufacture, and calibration of these unique instruments are reviewed in this paper. Mission operations, including the initial commissioning phase and the science operations phase, are described. Data processing and analysis procedures are briefly discussed, and ground-test results and in-orbit observations are used to demonstrate that the performance of the instruments meets the original scientific requirements. [less ▲]

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See detailHeliox-induced changes in the breathing mechanics of ponies during exercise.
Art, Tatiana ULg; Desmecht, Daniel ULg; Amory, Hélène ULg et al

in Equine Exercise Physiology (1991), 3

The changes occurring in breathing mechanics of exercising ponies when heliox is substituted for air are reported. Respiratory airflow, tidal volume (VT) and transpulmonary pressure (Ptp) were ... [more ▼]

The changes occurring in breathing mechanics of exercising ponies when heliox is substituted for air are reported. Respiratory airflow, tidal volume (VT) and transpulmonary pressure (Ptp) were simultaneously measured in 5 healthy ponies (255 ± 15 kg) at rest (breathing air) and while they exercised for 6 min on a treadmill. During exercise they first breathed air (2 min), than heliox (2 min) and then air again (2 min). Tidal volume (VT), respiratory rate (fR), minute volume (VE), maximum Ptp changes, total pulmonary resistance (RJ, mechanical work of Breathing per liter (Wrm l'), mechanical work per min (Wrm), dynamic compliance and pulmonary inertance were calculated. Heliox breathing significantly increased f,, and VE while VT remained unchanged. RL was reduced by 50% of lis "air value", Wrm I-' decreased, while Wrm remained unchanged. Pulmonary inertance dropped to 30% of its "air value". These observations suggest that in ponies, turbulent resistance and pulmonary inertance could be mainly responsible for the increases of RL and Wrm 1' during exercise [less ▲]

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See detailHelix Helix Interactions In Reconstituted High-Density-Lipoproteins
Lins, Laurence ULg; Brasseur, Robert ULg; De Pauw, Mc. et al

in Biochimica et Biophysica Acta-Lipids and Lipid Metabolism (1995), 1258(1), 10-8

In this work we calculated the ionic interactions between adjacent amphipathic helices of apo A-I and apo A-IV. The calculation of the electrostatic potential around the helices helps identify the charged ... [more ▼]

In this work we calculated the ionic interactions between adjacent amphipathic helices of apo A-I and apo A-IV. The calculation of the electrostatic potential around the helices helps identify the charged residues susceptible to form salt bridges between adjacent helices. An estimation of the stability of the different pairs of helices is derived from the calculation of the energy of interaction between contiguous helices at a water/lipid interface after energy minimization. The most stable energetic conformation corresponds to the 17-residue helices oriented anti-parallel and separated by a stretch of 5 residues in an extended beta-strand conformation, as calculated through the 'stereo alphabet' calculation procedure. In a pair of helices, the hydrophobic faces are directed towards the lipid core of the discoidal phospholipid-apolipoprotein complex and the hydrophobic lipid-protein interactions are major determinants for the stability of the complex. Interactions between polar residues located on the opposite face of the helix and water molecules can also contribute to the overall energy of the system. Finally, salt bridge formation between residues of opposite charge along the edge of the helical segments contribute to the cooperativity of the phospholipid-apolipoprotein complex formation. The mode of assembly of the amphipathic helical repeats of the apolipoproteins around the edge of a discoidal complex is therefore determined both by the hydrophobic character of the residues and by the charge complementarity along the edge of the helices which increases the structural stability and determines the relative orientation of the helices. [less ▲]

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See detailHell
Ricciardi, Stefania ULg; Pille, Lolita

Book published by Fazi (2009)

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See detailHella Patrick
Tomasovic, Dick ULg

in Aubenas, Jacqueline (Ed.) Dic Doc: Dictionnaire des Documentaristes belges (1999)

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See detailHello, Dolly…
Durand, Pascal ULg

Article for general public (1998)

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See detailHELLP syndrome
Emonts, Patrick ULg; Thoumsin, H.; Foidart, Jean-Michel ULg

in Revue Médicale de Liège (1999), 54(5), 444-7

The HELLP syndrome (Hemolysis, Elevated Liver enzymes, Low Platelet count) is a clinical expression of a multilayered disease whose central pathophysiology is abnormal placentation. Clinical research aims ... [more ▼]

The HELLP syndrome (Hemolysis, Elevated Liver enzymes, Low Platelet count) is a clinical expression of a multilayered disease whose central pathophysiology is abnormal placentation. Clinical research aims logically to search for new predictive and specific markers for the early identification of pregnant women at risk of developing a HELLP syndrome, the most common cause of feto-maternal mortality and morbidity. [less ▲]

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See detailLes helminthes et la thérapeutique anthelmintique chez les carnivores domestiques
Mignon, Bernard ULg

Conference given outside the academic context (1996)

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See detailHelodermin-loaded nanoparticles: Characterization and transport across an in vitro model of the follicle-associated epithelium
des Rieux, Anne; Fievez, Virginie; Momtaz, Maryam et al

in Journal of Controlled Release (2007), 118(3), 294-302

M cells represent a potential portal for oral delivery of peptides and proteins due to their high endocytosis abilities. An in vitro model of human FAE (co-cultures) was used to evaluate the influence of ... [more ▼]

M cells represent a potential portal for oral delivery of peptides and proteins due to their high endocytosis abilities. An in vitro model of human FAE (co-cultures) was used to evaluate the influence of M cells on the transport of free and encapsulated helodermin - a model peptide - across the intestinal epithelium. M cells enhanced transport of intact helodermin (18-fold, Papp 3 X 10(-6) cm s(-1)). As pegylation increased nanoparticle transport by M cells, helodermin was encapsulated in 200 mu nanoparticles containing PEG-b-PLA:PLGA 1:1. Stability of the selected formulation was demonstrated in simulated gastric and intestinal fluids. M cells increased the transport of helodermin encapsulated in these nanoparticles by a factor of 415, as compared to Caco-2 cells. Transport of free and encapsulated helodermin occurred most probably by endocytosis. In conclusion, M cells improved helodermin transport across the intestinal epithelium, confirming their high potential for oral delivery of peptides. [less ▲]

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See detailThe HELP Survey : a true picture of the hypertensive population in Belgium.
Clement, D.; Rorive, Georges ULg; Saint-Remy, Annie ULg

Poster (1997, December)

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See detailThe HelpED Study: Degree of Agreement Between Patients, Partners, and Physicians on
Claes, Hubert; Andrianne, Robert ULg; Opsomer, Reinier

Poster (2010)

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See detailThe HelpED Study: Impact of Change in Erection Hardness on the Self-Esteem,
Opsomer, Reinier; Claes, Hubert; Andrianne, Robert ULg

Poster (2010)

Detailed reference viewed: 11 (2 ULg)
See detailHelping children to learn languages (Aider son enfant à apprendre les langues)
Blondin, Christiane ULg

in European Parents Association - Info Bulletin (2001), (Hiver 2001), 11-16

Detailed reference viewed: 10 (3 ULg)