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See detailObservations of Comet 73P/SW3 close to its closest approach to the Earth.
Tozzi, G. P.; Bagnulo, S.; Boehnhardt, H. et al

in European Planetary Science Congress 2006 (2006)

In May 2006 comet 73P/SW3 passed at less than 0.1 AU from Earth providing us an unique opportunity for high spatial resolution study of its coma. This event was expected to be particularly interesting ... [more ▼]

In May 2006 comet 73P/SW3 passed at less than 0.1 AU from Earth providing us an unique opportunity for high spatial resolution study of its coma. This event was expected to be particularly interesting because the comet had broken apart in 3-4 fragments in 1996. The 2006 apparition has been even more interesting because the fragments produced in 1996, when approaching the Sun, were continuously breaking apart. This process resulted in many small sub-fragments and in the injection in the coma of fresh material, coming from the interior of the nuclei, giving the possibility to study this uncontaminated material. The breaking fragments have been observed at ESO in the visible and near-IR with the aim of analyzing this fresh solid component of the coma in search of possible presence of organic solids. In the presentation we will report preliminary results of this campaign. [less ▲]

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See detailGRB 061006: optical afterglow.
Malesani, D.; Stella, L.; D'Avanzo, P. et al

in GRB Coordinates Network (2006), 5718

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See detailSelf-face does not capture attention: an inattentional blindness study
Devue, Christel ULg; Laloyaux, Cédric ULg; Feyers, Dorothée ULg et al

Poster (2006)

It has been shown previously that some categories of stimuli are more likely to capture attention under condition of inattention compared to others. This is the case of faces and auto-referential material ... [more ▼]

It has been shown previously that some categories of stimuli are more likely to capture attention under condition of inattention compared to others. This is the case of faces and auto-referential material (e.g., the subject’s own name) in the inattentional blindness paradigm (Mack & Rock, 1998). However, stimuli combining these two properties have never been assessed. Yet it could be that the own face, because it is both a face and a self-referential stimulus, is more prone to attract attention compared to other faces. On the contrary, it could be that the identity and the familiarity of faces are not relevant factors because any face attracts attention by itself and all faces are equally distractive. Moreover, most of previous studies have used schematic unrealistic stimuli. Here, we tested these two opposite hypotheses in a first experiment using photographic stimuli and results showed that the own face does not attract attention compared to another highly familiar face or to an unknown face. Nevertheless, it appears that the own face was still better recognized compared to the others. A second experiment was aimed at verifying whether faces attract attention more than other objects with the same realistic photographic stimuli than used in experiment 1. Results confirmed previous findings that faces are more resistant to inattentional blindness than other objects. Our study suggests that a face by itself attracts attention compared to other objects whatever its familiarity or its identity. These results challenge the view that auto-referential material benefits from specific attentional processes. [less ▲]

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See detailLes ruses de la fiction
Durand, Pascal ULg

in Durand, Pascal (Ed.) L'écrivain et son double. Hubert Nyssen (2006)

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See detailThe prefix be-/bi- as a marker of verbs of deception in late Old and early Middle English
Petré, Peter ULg

in BELL. Belgian Journal of English Language and Literatures (2006), 4

This article brings to light a productive inseparable prefix construction marked by be-/biin late Old English and early Middle English, which forms complex verbs of DECEPTION, such as betray, beguile ... [more ▼]

This article brings to light a productive inseparable prefix construction marked by be-/biin late Old English and early Middle English, which forms complex verbs of DECEPTION, such as betray, beguile, bewray. The expression of such a specific psychological sense through a verbal prefix is highly exceptional for Germanic languages, and a complex four stage development has to be assumed, starting from other concrete constructions marked by be-/bi- such as the PRIVATIVE construction (cf. bereave, behead). By emphasizing the relevance of the notion of construction in this development, the article also contributes to the insights in the relationship between constructions and language change. [less ▲]

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See detailA framework for an optimised groundwater monitoring network and aggregated indicators
Rentier, Céline; Delloye, Francis; Brouyère, Serge ULg et al

in Environmental Geology (2006), 50(2), 194-201

The implementation of the Water Framework Directive (EU 2000) requires a groundwater quality monitoring. It is used for characterisation of the 'good' chemical status of each groundwater body and for the ... [more ▼]

The implementation of the Water Framework Directive (EU 2000) requires a groundwater quality monitoring. It is used for characterisation of the 'good' chemical status of each groundwater body and for the restoration or protection purposes of those bodies already at 'good' status. Interpretative aspects are lying in the design of monitoring network and in the way of building global indicators. Attention is given here to the global chemical status of the groundwater bodies and to the role of diffuse pollution, much of which is brought via groundwater to surface water. Monitoring 'local' pollution associated with individual sites is not addressed. Groundwater bodies with different contrasted hydrogeology conditions, land use and topography have been considered to establish an approach for choosing an optimised monitoring network. Then, a quality assessment system has been developed and applied for qualifying the general status of each groundwater body. The use of non-dimensional indexes allows us to process with all kinds of chemical parameters in a normalised way and, by means of adequate aggregation rules, to qualify the general quality status of a groundwater body. The obtained diagnostic, even if not fully validated, is closely linked to the pragmatic objectives contained in the EU Water Directive. [less ▲]

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See detailPour saluer Hubert Nyssen
Durand, Pascal ULg

in Durand, Pascal (Ed.) L'écrivain et son double. Hubert Nyssen (2006)

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See detailA new species of Jonesiobryum (Bryopsida : Rhachitheciaceae) from Uganda
Fischer, E.; Killmann, D.; Sérusiaux, Emmanuel ULg

in Journal of Bryology (2006), 28(3), 177-181

Jonesiobryum dumboi is described as a new moss species from Uganda. It differs from its congeners by possessing more broadly obovate leaves and a costa that ends well below the apex. The species is only ... [more ▼]

Jonesiobryum dumboi is described as a new moss species from Uganda. It differs from its congeners by possessing more broadly obovate leaves and a costa that ends well below the apex. The species is only known from the type locality where it was collected on branches in the canopy. [less ▲]

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See detailInfluence of the shaping effect on hardness homogeneity by Vickers indentation analysis
Guillaume, Bernard ULg; Boschini, Frédéric ULg; Rulmont, André ULg et al

in Journal of the European Ceramic Society (2006), 26(15), 3191-3196

In this study, indentation technique (Vickers indentation) has been unconventionally used to evaluate the homogeneity of barium zirconate ceramic samples which have been shaped through different routes ... [more ▼]

In this study, indentation technique (Vickers indentation) has been unconventionally used to evaluate the homogeneity of barium zirconate ceramic samples which have been shaped through different routes. Statistical tools have been used to estimate the con-elation which can be established between heterogeneities within the samples and their shaping ways. (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailPrimary sarcoma of an abdominal aortic aneurysm
Defawe, O.D.; Thiry, Albert ULg; Lapiere, C.M. et al

in Abdominal Imaging (2006), 31(1, Jan-Feb), 117-119

Primary tumors of the aorta are extremely rare and the diagnosis is made most often after surgery or autopsy. Because clinical symptoms of abdominal sarcoma are similar to those of occlusive or aneurysmal ... [more ▼]

Primary tumors of the aorta are extremely rare and the diagnosis is made most often after surgery or autopsy. Because clinical symptoms of abdominal sarcoma are similar to those of occlusive or aneurysmal disease, aortic sarcomas are frequently mistaken for these lesions. The imaging findings are frequently nonspecific and therefore do not allow a definitive preoperative diagnosis. We report a case of an epithelioid angiosarcoma in the vessel wall of an abdominal aortic aneurysm. [less ▲]

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See detailMise au point d'une hyperferritinémie
Delwaide, Jean ULg; Giet, Didier ULg; Lamproye, Anne ULg et al

in Revue Médicale de Liège (2006), 61(5-6), 329-333

Hemochromatosis is the most common genetic disorder in persons of northern European descent, and the majority of cases are caused by a mutation in the gene HFE. Genetic testing for hemochromatosis is ... [more ▼]

Hemochromatosis is the most common genetic disorder in persons of northern European descent, and the majority of cases are caused by a mutation in the gene HFE. Genetic testing for hemochromatosis is therefore indicated in all patients with increases in transferrine saturation and ferritin levels. When this genetic testing does not demonstrate a hemochromatosis, other diseases responsible for elevated ferritin levels have to be ruled out, mainly hemolytic anemia, chronic inflammatory disorders, liver diseases such as hepatitis B or C, alcohol abuse, and non alcoholic fatty liver disease. In demonstrated iron overload with absence of classic causes, second-line genetic testing should be considered. [less ▲]

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See detailLa résolution de problèmes : analyse des pratiques de classe au cycle 5-8
Fagnant, Annick ULg; Hindryckx, Geneviève ULg

in Actes du 4e congrès des chercheurs en éducation : le point sur la recherche en éducation en Communauté française (2006)

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See detailCombination therapy versus monotherapy: a randomised pilot study on the evolution of inflammatory parameters after ventilator associated pneumonia
Damas, Pierre ULg; Garweg, Christophe ULg; Monchi, Mehran et al

in Critical Care (2006), 10(2), 52

Introduction Combination antibiotic therapy for ventilator associated pneumonia (VAP) is often used to broaden the spectrum of activity of empirical treatment. The relevance of such synergy is commonly ... [more ▼]

Introduction Combination antibiotic therapy for ventilator associated pneumonia (VAP) is often used to broaden the spectrum of activity of empirical treatment. The relevance of such synergy is commonly supposed but poorly supported. The aim of the present study was to compare the clinical outcome and the course of biological variables in patients treated for a VAP, using a monotherapy with a beta-lactam versus a combination therapy. Methods Patients with VAP were prospectively randomised to receive either cefepime alone or cefepime in association with amikacin or levofloxacin. Clinical and inflammatory parameters were measured on the day of inclusion and thereafter. Results Seventy-four mechanically ventilated patients meeting clinical criteria for VAP were enrolled in the study. VAP was microbiologically confirmed in 59 patients (84%). Patients were randomised to receive cefepime (C group, 20 patients), cefepime with amikacin (C-A group, 19 patients) or cefepime with levofloxacin (C-L group, 20 patients). No significant difference was observed regarding the time course of temperature, leukocytosis or C-reactive protein level. There were no differences between length of stay in the intensive care unit after infection, nor in ventilator free days within 28 days after infection. No difference in mortality was observed. Conclusion Antibiotic combination using a fourth generation cephalosporin with either an aminoside or a fluoroquinolone is not associated with a clinical or biological benefit when compared to cephalosporin monotherapy against common susceptible pathogens causing VAP. [less ▲]

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See detailNo accelerated rate of protein evolution in male-biased Drosophila pseudoobscura genes.
Metta, Muralidhar ULg; Gudavalli, Rambabu; Gibert, Jean-Michel et al

in Genetics (2006), 174(1), 411-20

Sexually dimorphic traits are often subject to diversifying selection. Genes with a male-biased gene expression also are probably affected by sexual selection and have a high rate of protein evolution. We ... [more ▼]

Sexually dimorphic traits are often subject to diversifying selection. Genes with a male-biased gene expression also are probably affected by sexual selection and have a high rate of protein evolution. We used SAGE to measure sex-biased gene expression in Drosophila pseudoobscura. Consistent with previous results from D. melanogaster, a larger number of genes were male biased (402 genes) than female biased (138 genes). About 34% of the genes changed the sex-related expression pattern between D. melanogaster and D. pseudoobscura. Combining gene expression with protein divergence between both species, we observed a striking difference in the rate of evolution for genes with a male-biased gene expression in one species only. Contrary to expectations, D. pseudoobscura genes in this category showed no accelerated rate of protein evolution, while D. melanogaster genes did. If sexual selection is driving molecular evolution of male-biased genes, our data imply a radically different selection regime in D. pseudoobscura. [less ▲]

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See detailQuantitative ultrasonography for the noninvasive assessment of equine bone: a review
Carstanjen, B.; Gabriel, Annick ULg

in IPPOLOGIA (2006), 17(4), 11-15

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See detailMorphometric study of the equine fetlock and coffin joints
Riccio, Barbara; Carstanjen, Bianca; Denoix, Jean-Marie et al

in Italian Journal of Anatomy and Embryology (2006), 111

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See detailEpidémiosurveillance des événements rares chez les bovins en Belgique
Saegerman, Claude ULg

in Annales de Médecine Vétérinaire (2006), 150(Sp. Iss. SI), 4-9

Epidémiosurveillance des événements rares chez les bovins en Belgique. Thèse de doctorat en sciences vétérinaires défendue le 29 septembre 2004.

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See detailTranscriptome analysis reveals link between proteasomal and mitochondrial pathways in Parkinson's disease.
Duke, D. C.; Moran, L. B.; Kalaitzakis, M. E. et al

in Neurogenetics (2006), 7(3), 139-48

There is growing evidence that dysfunction of the mitochondrial respiratory chain and failure of the cellular protein degradation machinery, specifically the ubiquitin-proteasome system, play an important ... [more ▼]

There is growing evidence that dysfunction of the mitochondrial respiratory chain and failure of the cellular protein degradation machinery, specifically the ubiquitin-proteasome system, play an important role in the pathogenesis of Parkinson's disease. We now show that the corresponding pathways of these two systems are linked at the transcriptomic level in Parkinsonian substantia nigra. We examined gene expression in medial and lateral substantia nigra (SN) as well as in frontal cortex using whole genome DNA oligonucleotide microarrays. In this study, we use a hypothesis-driven approach in analysing microarray data to describe the expression of mitochondrial and ubiquitin-proteasomal system (UPS) genes in Parkinson's disease (PD). Although a number of genes showed up-regulation, we found an overall decrease in expression affecting the majority of mitochondrial and UPS sequences. The down-regulated genes include genes that encode subunits of complex I and the Parkinson's-disease-linked UCHL1. The observed changes in expression were very similar for both medial and lateral SN and also affected the PD cerebral cortex. As revealed by "gene shaving" clustering analysis, there was a very significant correlation between the transcriptomic profiles of both systems including in control brains. Therefore, the mitochondria and the proteasome form a higher-order gene regulatory network that is severely perturbed in Parkinson's disease. Our quantitative results also suggest that Parkinson's disease is a disease of more than one cell class, i.e. that it goes beyond the catecholaminergic neuron and involves glia as well. [less ▲]

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See detailComparative study of commercially available anti-alpha-synuclein antibodies.
Croisier, E.; MRes, D Elfant; Deprez, Manuel ULg et al

in Neuropathology & Applied Neurobiology (2006), 32(3), 351-6

Immunohistochemistry for alpha-synuclein has become the histological technique of choice for the diagnosis for Parkinson's disease, Dementia with Lewy bodies and Multiple System Atrophy (http://www.ICDNS ... [more ▼]

Immunohistochemistry for alpha-synuclein has become the histological technique of choice for the diagnosis for Parkinson's disease, Dementia with Lewy bodies and Multiple System Atrophy (http://www.ICDNS.org). Nevertheless, no standardised protocol has been proposed. We have reviewed 242 of the 270 studies published until June 2005 that mentioned immunohistochemistry for anti-alpha synuclein on human tissue and we found that only 75 (31%) used commercial antibodies. We also noted that protocols, particularly dilution and antigen unmasking, varied between studies, even when the same antibody was employed. In order to establish a standardised protocol for alpha-synuclein immunohistochemistry, which can be applied in diagnostic neuropathology we tested seven commercial monoclonal antibodies in brains of subjects with Parkinson's disease, dementia with Lewy bodies, multiple system atrophy, multiple sclerosis with incidental Lewy bodies and aged-matched normal brain and determined for each antibody the best suited protocol for antigen unmasking. We evaluated the intensity of immunolabelling in Lewy bodies, neuropil threads, dendrites, pre-synaptic terminals, granular cytoplasmic positivity, peri-axonal positivity, glial inclusions and non-specific immunolabelling. Although our results showed that all the antibodies detected alpha-synuclein inclusions, differences were noted between antibodies, particularly with regard to the detection of glial inclusions. From our study, the best antibodies of the seven tested appeared to be those directed against amino acids 116-131 and 15-123 and we suggest them to be used in routine diagnostic practice for alpha-synucleinopathies. [less ▲]

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