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See detailThe "666" collaboration on OGLE transits. I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with VLT deconvolution photometry
Pont, F.; Moutou, C.; Gillon, Michaël ULg et al

in Astronomy and Astrophysics (2007), 465

Transiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets. Here we report new high ... [more ▼]

Transiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets. Here we report new high-accuracy photometry of the transits of OGLE-TR-10 and OGLE-TR-56 with VLT/FORS1. One transit of each object was covered in Bessel V and R filters, and treated with the deconvolution-based photometry algorithm DECPHOT, to ensure accurate millimagnitude light curves. Together with earlier spectroscopic measurements, the data imply a radius of 1.22{[SUP]+0.12[/SUP][SUB]-0.07[/SUB]} R[SUB]J[/SUB] for OGLE-TR-10b and 1.30 ± 0.05 R[SUB]J[/SUB] for OGLE-TR-56b. A re-analysis of the original OGLE photometry resolves an earlier discrepancy about the radius of OGLE-TR-10. The transit of OGLE-TR-56 is almost grazing, so that small systematics in the photometry can cause large changes in the derived radius. Our study confirms both planets as inflated hot Jupiters, with large radii comparable to that of HD 209458b and at least two other recently discovered transiting gas giants. Based on data collected with the FORS1 imager at the VLT-Kueyen telescope (Paranal Observatory, ESO, Chile) in the programme 177.C-0666E. [less ▲]

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See detailL'astronomie dans le monde
Manfroid, Jean ULg

Article for general public (2007)

Une ceinture d'astéroïdes extrasolaire; Rosetta près de Mars; New Horizons près de Jupiter; Saturne; VLTI: dans l'intimité des étoiles grâce à  AMBER; Télescope polaire; Jumeau du Soleil; Deux novae dans ... [more ▼]

Une ceinture d'astéroïdes extrasolaire; Rosetta près de Mars; New Horizons près de Jupiter; Saturne; VLTI: dans l'intimité des étoiles grâce à  AMBER; Télescope polaire; Jumeau du Soleil; Deux novae dans le Scorpion; L'année polaire internationale 2007--2008; Premières observations scientifiques pour COROT [less ▲]

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See detailOn the co-existence of chemically peculiar Bp stars, slowly pulsating B stars and constant B stars in the same part of the HR diagram
Briquet, Maryline ULg; Hubrig, S.; De Cat, P. et al

in Astronomy and Astrophysics (2007), 466

Aims: In order to better model massive B-type stars, we need to understand the physical processes taking place in slowly pulsating B (SPB) stars, chemically peculiar Bp stars, and non-pulsating normal B ... [more ▼]

Aims: In order to better model massive B-type stars, we need to understand the physical processes taking place in slowly pulsating B (SPB) stars, chemically peculiar Bp stars, and non-pulsating normal B stars co-existing in the same part of the H-R diagram. <BR />Methods: We carry out a comparative study between samples of confirmed and well-studied SPB stars and a sample of well-studied Bp stars with known periods and magnetic field strengths. We determine their evolutionary state using accurate HIPPARCOS parallaxes and Geneva photometry. We discuss the occurrence and strengths of magnetic fields as well as the occurrence of stellar pulsation among both groups. Further, we make a comparison of Geneva photometric variability for both kinds of stars. <BR />Results: The group of Bp stars is significantly younger than the group of SPB stars. Longitudinal magnetic fields in SPB stars are weaker than those of Bp stars, suggesting that the magnetic field strength is an important factor for B type stars to become chemically peculiar. The strongest magnetic fields appear in young Bp stars, indicating a magnetic field decay in stars at advanced ages. Rotation periods of Bp and pulsation periods of SPB stars are of the same order and the behaviour of Geneva photometric variability of some Bp stars cannot be distinguished from the variability of SPB stars, illustrating the difficulty to interpret the observed variability of the order of days for B-type stars. We consider the possibility that pulsation could be responsible for the variability among chemically peculiar stars. In particular, we show that a non-linear pulsation model is not excluded by photometry for the Bp star HD 175362. [less ▲]

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See detailTraductores en el siglo
Willson, Patricia ULg

in Punto de Vista (2007), (87), 19-25

This article is part of the series «The century on trial» published by the journal Punto de Vista directed by Beatriz Sarlo. The series addresses the history of ideas in Argentina during the hundred years ... [more ▼]

This article is part of the series «The century on trial» published by the journal Punto de Vista directed by Beatriz Sarlo. The series addresses the history of ideas in Argentina during the hundred years between the first centenary of the May Revolution (1910) and its bicentennial (2010). The article, which is the fourth in the series, addresses the question of translation in Argentine literature during this period: its representations, agents and functions, encompassing from foreign language education policies at the outset of the 20th century to the most important collections of translated literature at the onset of the 21st century [less ▲]

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See detailL'expatriation: les différentes étapes d'un long parcours
Robert, Jocelyne ULg

Article for general public (2007)

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See detailThe refinement of financing criteria for hospital nursing care: an application of the use of Belgian NMDSII
VAN HERCK, Pieter; SERMEUS, Walter; MICHIELS, Dominik et al

in OUD, Nico; SHEERIN, Fintan; SERMEUS, Walter (Eds.) et al Proceedings of the 6th biennial European Conference of the Association for Common European Nursing Diagnoses, Interventions and Outcomes (2007, April)

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See detailMetallo-beta-lactamases as emerging resistance determinants in Gram-negative pathogens: open issues
Cornaglia, G.; Akova, M.; Amicosante, G. et al

in International Journal of Antimicrobial Agents (2007), 29(4), 380-388

The rapid spread of acquired metallo-beta-lactamases (MBLs) among major Gram-negative pathogens is a matter of particular concern worldwide and primarily in Europe, one of first continents where the ... [more ▼]

The rapid spread of acquired metallo-beta-lactamases (MBLs) among major Gram-negative pathogens is a matter of particular concern worldwide and primarily in Europe, one of first continents where the emergence of acquired MBLs has been reported and possibly the geographical area where the increasing diversity of these enzymes and the number of bacterial species affected are most impressive. This spread has not been paralleled by accuracy/standardisation of detection methods, completeness of epidemiological knowledge or a clear understanding of what MBL production entails in terms of clinical impact, hospital infection control and antimicrobial chemotherapy. A number of European experts in the field met to review the current knowledge on this phenomenon, to point out open issues and to reinforce and relate to one another the existing activities set forth by research institutes, scientific societies and European Union-driven networks. (c) 2006 Elsevier B.V. and the International Society of Chemotherapy. All rights reserved. [less ▲]

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See detailThe Belgian Nursing Minimum Data Set II: end results and practical implementation
MICHIELS, Dominik; SERMEUS, Walter; VAN DEN HEEDE, Koen et al

in OUD, Nico; SHEERIN, Fintan; SERMEUS, Walter (Eds.) et al Proceedings of the 6th biennial European Conference of the Association for Common European Nursing Diagnoses, Interventions and Outcomes (2007, April)

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See detailEurope : Une Recherche orientée et au financement tardif
Ernst, Brigitte ULg

Article for general public (2007)

Les budgets « Recherche et développement », belge et européen, sont plus fournis qu’auparavant…sans pourtant répondre aux intentions affichées. Quant au contenu de ces programmes, la fascination pour les ... [more ▼]

Les budgets « Recherche et développement », belge et européen, sont plus fournis qu’auparavant…sans pourtant répondre aux intentions affichées. Quant au contenu de ces programmes, la fascination pour les modèles américains et japonais reste de mise : le choix des secteurs d’activités est avant tout dicté par les retombées économiques. [less ▲]

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See detailUn algorithme performant de calcul des erreurs de forme
Debongnie, Jean-François ULg

in Agouzoul, Mohammed (Ed.) Proceedings du 8e Congrès de Mécanique. Volume I. Mécanique des Solides (2007, April)

In this paper, an original algorithm for the computation of a form error is exposed, which is exceptionally fast and robust and which wholly conforms to ISO norms.

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See detailNew constraints on the Karliova Triple Junction between Arabia, Eurasia and Anatolia.
Hubert, Aurelia ULg; Van Der Woerd, Jerome; King, G. et al

in Geophysical Research Abstracts (2007, April), 9

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See detailAssessment of Lake Sediment Sensitivity to Earthquakes and Climate Cycles along the North Anatolian Fault,
Boes, Xavier; Avsar, Ulas; King, J et al

in Geophysical Research Abstracts (2007, April), 9

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See detailPotential of Shallow Lake Systems to Trace Environmental Changes Caused by Earthquakes
Avsar, Ulas; Boes, X; Hubert, Aurelia ULg et al

in Geophysical Research Abstracts (2007, April), 9

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See detailUnderstanding the irregularity of Seismic cycles: A Case study in Turkey-A Marie Curie Excellence Team Project
Hubert, Aurelia ULg; Boes, X; Fraser, J et al

in Geophysical Research Abstracts (2007, April), 9

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See detailDevelopment of paleoseismic trench logging and dating techniques: a case study on the Central North Anatolian Fault
Fraser, Jeff; Pigati, J.S.; Hubert, Aurelia ULg et al

in Geophysical Research Abstracts (2007, April), 9

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See detailEvaluation of a new commercial real time PCR for the detection of Aspergillus spp. in serum and respiratory samples
Hayette, Marie-Pierre ULg; Meex, Cécile ULg; Boreux, Raphaël ULg et al

Poster (2007, April)

Objectives. Diagnosis of invasive aspergillosis is still disappointing and often delayed because of the lack of sensitivity of diagnostic tools. DNA detection based-methods have been developed, but differ ... [more ▼]

Objectives. Diagnosis of invasive aspergillosis is still disappointing and often delayed because of the lack of sensitivity of diagnostic tools. DNA detection based-methods have been developed, but differ widely and comparisons are difficult to assess. The objective of the study is to compare a new commercial real-time PCR kit, affigene® Aspergillus tracer assay, with an in house nested PCR targeting 18S rRNA Aspergillus sp. gene. Methods. Twelve patients at risk for invasive aspergillosis were included in the study. They were classified to have possible (5 cases), probable (1 case) or proven (6 cases) invasive aspergillosis following E.O.R.T.C. criteria. Fifteen serum and respiratory paired samples were collected. The DNA extraction was performed by using the QIAmp DNA mini kit® (Qiagen, Germany). All samples were tested by both PCR assays and respiratory samples were cultured. Results. Respiratory samples. A. fumigatus, A. niger and A. flavus were isolated from 10/15 samples; both PCR methods were positive for these samples except one that was positive for affigene® and equivocal for the nested PCR. The real-time PCR assay reported cycle thresholds ranging from 25 to 38. Three of the five culture-negative samples were negative by both PCR methods; one of three was negative in affigene® assay and equivocal by nested PCR; the last sample was positive in affigene® assay and negative by nested PCR. Serum. Thirteen of fifteen blood samples were negative by both PCR methods. One sample was equivocal by nested PCR and was inhibited in affigene® assay despite a culture-positive paired respiratory sample. The last case was inhibited by the real-time PCR assay and negative by nested PCR. Nor the nested PCR, nor affigene® assay could detect any Aspergillus DNA in serum. In total, there was 93% of agreement between the two PCR assays. Conclusion. Both methods are in good agreement and can detect at least three different species of Aspergillus. However, the sensitivity of both assays does not permit the detection of Aspergillus DNA in serum. affigene® assay can easy replace the “in house” assay: it allows a fast and standardized detection of Aspergillus sp. DNA in respiratory samples without inconvenient due to the handling of PCR products. [less ▲]

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See detailNos grandes cultures captent aussi le CO2
Bodson, Bernard ULg; Moureaux, Christine ULg; Aubinet, Marc ULg

in Nouvelles du Printemps (Les) (2007), (2ème trimestre 2007), 30-31

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See detailComment j'explore...Les arteres coronaires en 2007: apports de la tomodensitometrie
Davin, Laurent ULg; Bruyere, P. J.; Lewin, Michel ULg et al

in Revue Médicale de Liège (2007), 62(4), 222-9

Cardiac imaging has always been a challenge because of the continuous movement of the heart. Cardiac computed tomography (CT) has undergone an accelerated progression over the past decade, due to the ... [more ▼]

Cardiac imaging has always been a challenge because of the continuous movement of the heart. Cardiac computed tomography (CT) has undergone an accelerated progression over the past decade, due to the combination of the high-speed rotation of the X-ray tube, the ECG-gating technique and the infra-millimeter spatial resolution. Multidetector CT allows visualisation of the coronary artery lumen and the detection of coronary stenosis after intravenous injection of contrast medium. Studies have demonstrated a high negative predictive value of CT coronary angiography (CTCA). CTCA may be reasonably used for the assessment of symptomatic patients, especially in the setting of equivocal treadmill or functional testing. Also, CTCA allows assessment of coronary bypass graft patency and recognition of aberrant coronary arteries. Limitations in the use of this technique exist: atrial fibrillation and other cardiac arrhythmias remain a contraindication; severe calcifications are the most frequent reason for impaired assessment of coronary arteries. High radiation doses prohibit the use of this test as a screening tool for asymptomatic patients. [less ▲]

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See detailLe cas clinique du mois. Pericardite constrictive a pericarde macroscopiquement normal: a propos d'un cas
Hoffer, E.; Materne, P.; Limet, Raymond ULg et al

in Revue Médicale de Liège (2007), 62(4), 184-7

The diagnosis of constrictive pericarditis is not easy to make. This rare condition can be suggested by clinical, echocardiograohic, hemodynamic, and radiological signs. It must be distinguished from ... [more ▼]

The diagnosis of constrictive pericarditis is not easy to make. This rare condition can be suggested by clinical, echocardiograohic, hemodynamic, and radiological signs. It must be distinguished from restrictive cardiomyopathy as therapeutic options are radically different. We present an ambiguous case of constrictive pericarditis with macroscopically normal pericardium recognized 10 years after open-chest cardiac surgery: a large pericardiectomy rapidly induced clinical improvement. [less ▲]

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