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See detailDevelopment of a new crossbred based evaluation for carcass quality of Piétrain boars in the Walloon Region of Belgium
Dufrasne, Marie ULg; Hammami, Hedi ULg; Jaspart, Véronique et al

Poster (2010)

The aim of this study was to develop a genetic evaluation model to estimate the genetic merit of Piétrain boars for some carcass quality traits. These boars are now evaluated on performances recorded on ... [more ▼]

The aim of this study was to develop a genetic evaluation model to estimate the genetic merit of Piétrain boars for some carcass quality traits. These boars are now evaluated on performances recorded on their crossbred progeny fattened in a central test station. Data provided by the on-farm performance recording system were utilized in this study. Traits analysed were backfat thickness (BF) and lean meat percentage (%meat). The data file contains 60 546 records measured on pigs between 150 and 300 days of age. Model developed was a multitrait animal model. Fixed effects were sex, contemporary groups and heterosis, modeled as regression on heterozygosity. Random effects were additive genetic and permanent environment, modeled by random regressions using linear splines, and residual. Variance components were estimated by restricted maximum likelihood (REML) method on random samples of the total dataset and then confirmed by a Gibbs sampling algorithm on the total dataset. Fit of the model was tested by computing residuals from a BLUP (Best Linear Unbiased Prediction) evaluation. BF and %meat have a high heritability that increase with age. These two traits are also highly genetically correlated. Mean residuals are not significantly different from zero for both traits. Given that BF and %meat had high heritability, genetic improvement of carcass quality is possible by selection on these two traits. Like residuals are close to zero for both traits, it seems that model developed explain a great proportion the variance in each traits. [less ▲]

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See detailDevelopment of a new crossbred based evaluation for carcass quality of Piétrain boars in the Walloon Region of Belgium
Dufrasne, Marie ULg; Hammami, Hedi ULg; Jaspart, Véronique et al

in Book of Abstract of the 61st Annual Meeting of the European Association for Animal Production (2010)

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See detailOntology-based approaches for improving the interoperability between 3D urban models
Metral, Claudine; Billen, Roland ULg; Cutting-Decelle, Anne-Françoise et al

in FormaMente (2010), 1-2(V), 85-111

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See detailA new case of consensual decision: collective movement in earthworms
Zirbes, Lara ULg; Deneubourg, Jean-Louis; Brostaux, Yves ULg et al

in Ethology (2010), 115

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See detailClinical characteristics and therapeutic responses in patients with Germ-line AIP mutations and pituitary adenomas : An international collaborative study
Daly, Adrian ULg; Tichomirowa, Maria A.; Petrossians, Patrick ULg et al

in Journal of Clinical Endocrinology and Metabolism (2010), 95(11),

Context: AIP mutations (AIPmut) give rise to a pituitary adenoma predisposition that occurs in familial isolated pituitary adenomas and less often in sporadic cases. The clinical and therapeutic features ... [more ▼]

Context: AIP mutations (AIPmut) give rise to a pituitary adenoma predisposition that occurs in familial isolated pituitary adenomas and less often in sporadic cases. The clinical and therapeutic features of AIPmut-associated pituitary adenomas have not been studied comprehensively. <br />Objective: The objective of the study was to assess clinical/therapeutic characteristics of AIPmut pituitary adenomas. <br />Design: This study was an international, multicenter, retrospective case collection/database analysis. <br />Setting: The study was conducted at 36 tertiary referral endocrine and clinical genetics departments. <br />Patients: Patients included 96 patients with germline AIPmut and pituitary adenomas and 232 matched AIPmut-negative acromegaly controls. <br />Results: The AIPmut population was predominantly young and male (63.5%); first symptoms occurred as children/adolescents in 50%. At diagnosis, most tumors were macroadenomas (93.3%); extension and invasion was common. Somatotropinomas comprised 78.1% of the cohort; there were also prolactinomas (n = 13), nonsecreting adenomas (n = 7), and a TSH-secreting adenoma. AIPmut somatotropinomas were larger (P = 0.00026), with higher GH levels (P = 0.00068), more frequent extension (P = 0.018) and prolactin cosecretion (P = 0.00023), and occurred 2 decades before controls (P < 0.000001). Gigantism was more common in the AIPmut group (P < 0.000001). AIPmut somatotropinoma patients underwent more surgical interventions (P = 0.00069) and had lower decreases in GH (P = 0.00037) and IGF-I (P = 0.028) and less tumor shrinkage with somatostatin analogs (P < 0.00001) vs. controls. AIPmut prolactinomas occurred generally in young males and frequently required surgery or radiotherapy. <br />Conclusions: AIPmut pituitary adenomas have clinical features that may negatively impact treatment efficacy. Predisposition for aggressive disease in young patients, often in a familial setting, suggests that earlier diagnosis of AIPmut pituitary adenomas may have clinical utility. [less ▲]

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See detailOptimisation methods for advanced design of aircraft panels: a comparison
Colson, Benoit; Bruyneel, Michaël ULg; Grihon, Stéphane et al

in Optimization & Engineering (2010), 11

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See detailFormation of Stripelike Flux Patterns Obtained by Freezing Kinematic Vortices in a Superconducting Pb Film
Silhanek, Alejandro ULg; Milosevic, M. V.; Kramer, R. B. G. et al

in Physical Review Letters (2010), 104(1),

We demonstrate experimentally and theoretically that the dissipative state of superconducting samples with a periodic array of holes at high current densities consists of flux rivers resulting from a ... [more ▼]

We demonstrate experimentally and theoretically that the dissipative state of superconducting samples with a periodic array of holes at high current densities consists of flux rivers resulting from a short-range attractive interaction between vortices. This dynamically induced vortex-vortex attraction results from the migration of quasiparticles out of the vortex core (kinematic vortices). We have directly visualized the formation of vortex chains by scanning Hall probe microscopy after freezing the dynamic state by a field cooling procedure at a constant bias current. Similar experiments carried out in a sample without holes show no hint of flux river formation. We shed light on this nonequilibrium phenomena modeled by time-dependent Ginzburg-Landau simulations. [less ▲]

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See detailQui est l'ange ? Narration, écriture et fiction dans trois poèmes majeurs de Cocteau
Purnelle, Gérald ULg

in La Revue des Lettres modernes, Série Jean Cocteau (2010), 6

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See detailWater dynamics in the soil-plant continuum: which features regulate the uptake?
Lobet, Guillaume ULg; Javaux, M.; Pagès, L. et al

Poster (2010)

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See detailThe 3-D extent of the Io UV footprint on Jupiter
Bonfond, Bertrand ULg

in Journal of Geophysical Research. Space Physics (2010), 115

The Io footprint (IFP) is the auroral signature of the electromagnetic interaction between Io and Jupiter's magnetosphere. It consists of several spots followed by an extended tail, which are located ... [more ▼]

The Io footprint (IFP) is the auroral signature of the electromagnetic interaction between Io and Jupiter's magnetosphere. It consists of several spots followed by an extended tail, which are located close to the feet of the magnetic field lines connecting Io to Jupiter. The size of the main spot is a controversial issue, and previously published values range from ~400 to ~8000 km. However, this question is crucial to understand the processes at play, since this quantity is expected to reflect the size of the interaction region at Io. The present study provides estimates of the size of the Io footprint on a much larger image sample than before, paying a particular attention to the differentiation of the spots and to their 3-D structure. The length of the Main Alfven Wing (MAW) spot and the length of the trans-hemispheric electron beam (TEB) spot along the footpath are similar to 850 km, while their width perpendicular to the footpath is < 200 km. Larger lengths are sometimes observed, but these configurations may be attributed to the overlaps of the different spots. The spot lengths are larger than the projected diameter of Io along unperturbed magnetic field lines, which is consistent with recent simulations. The narrowness of the IFP will need to be carefully accounted for in future studies of its brightness. Additionally, the peak altitudes of the MAW and the TEB spot are as high as 900 and 700 km, respectively, which seem to confirm their different origins. [less ▲]

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See detailOn the Convergence of Social Protection Performance in the European Union
Lefebvre, Mathieu ULg; Coelli, Tim; Pestieau, Pierre ULg

in CESifo Economic Studies (2010), 56(2), 300-322

In this article, we use data on five social inclusion indicators (poverty, inequality, unemployment, <br />education and health) to assess and compare the performance of 15 European <br />welfare states ... [more ▼]

In this article, we use data on five social inclusion indicators (poverty, inequality, unemployment, <br />education and health) to assess and compare the performance of 15 European <br />welfare states (EU15) over a 12-year period from 1995 to 2006. Aggregate measures of <br />performance are obtained using index number methods similar to those employed in the <br />construction of the widely used Human Development Index. These are compared with <br />alternative measures derived from data envelopment analysis methods. The influence of <br />methodology choice and the assumptions made in scaling indicators upon the results <br />obtained is illustrated and discussed. We then analyse the evolution of performance <br />over time, finding evidence of some convergence in performance and no sign of social <br />dumping. [less ▲]

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See detailMesurer et comparer le bien-être des personnes âgées dans l’UE
Lefebvre, Mathieu ULg

in Revue Française d'Economie (2010), XXV(1), 213-227

Dans cet article, nous proposons une méthode de mesure multidimensionnelle du bien-être des personnes âgées dans l’UE au cours de la dernière décennie. Cette méthode agrège un certain nombre de facettes ... [more ▼]

Dans cet article, nous proposons une méthode de mesure multidimensionnelle du bien-être des personnes âgées dans l’UE au cours de la dernière décennie. Cette méthode agrège un certain nombre de facettes du bien-être, à savoir les niveaux moyen et relatif de revenus, les taux de pauvreté et d’inégalité, l’espérance de vie et la santé. Cette mesure synthétique permet de comparer les pays européens, d’étudier l’évolution et l’éventuelle convergence du niveau de bien-être des personnes âgées, qui connaissent des moments difficiles avec le vieillissement démographique et la crise financière de nombreux systèmes de retraite. [less ▲]

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See detailExploiting semi-analytical sensitivities from linear and non-linear finite element analyses for composite panel optimisation
Bruyneel, Michaël ULg; Coslon, Benoit; Delsemme, Jean-Pierre et al

in International Journal of Structural Stability & Dynamics (2010), 10

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See detailAt least two expressed genes for transcription factors Pitx2 and Rpx are present in common carp and are upregulated during winter acclimatization.
Kausel, G.; Vera, T.; Valenzuela, G. et al

in General and Comparative Endocrinology (2010), 169(3), 250-257

The mechanisms of seasonal acclimatization in eurythermal fish such as common carp are not fully understood. Here, we concentrate on the regulation of pituitary factors, as this organ was shown to be ... [more ▼]

The mechanisms of seasonal acclimatization in eurythermal fish such as common carp are not fully understood. Here, we concentrate on the regulation of pituitary factors, as this organ was shown to be highly affected by seasonal changes. We cloned and sequenced two different cDNAs for each of the transcription factors Pitx2 and Rpx, known to play a role in pituitary development. We show that these genes are conserved throughout evolution, to different degrees depending on the specific domain considered. Finally, we show that the cDNAs for both factors are clearly up-regulated during the winter season, in sharp contrast to other regulators such as Pit1 or pituitary hormone genes such as prolactin (prl) and growth hormone (gh). Our results suggest that increased expression of Pitx2 and Rpx contributes to seasonal adaptation of common carp to winter conditions. [less ▲]

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See detailLitigating Cross-Border IP Disputes - issues of Jurisdiction
Wautelet, Patrick ULg

Learning material (2010)

In this seminar, students are invited to study the fundamentals of cross-border IP disputes, using as an example the rules of jurisdiction in force within the European Judicial Area for patent disputes ... [more ▼]

In this seminar, students are invited to study the fundamentals of cross-border IP disputes, using as an example the rules of jurisdiction in force within the European Judicial Area for patent disputes. Particular attention is paid to the case law of the ECJ and the difficulties patent holders face in obtaining cross-border relief. [less ▲]

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See detailIncremental development of a shared urban ontology: the Urbamet experience
Guyot, Jacques; Falquet, Gilles; Teller, Jacques ULg

in Formamente (2010)

Thesauri are used for document referencing. They define hierarchies of domains. We show how document and domain contents can be used to validate and update a classification based on a thesaurus. We use ... [more ▼]

Thesauri are used for document referencing. They define hierarchies of domains. We show how document and domain contents can be used to validate and update a classification based on a thesaurus. We use document indexing and classification techniques to automate these operations. We also draft a methodology to systematically address those issues. Our techniques are applied to Urbamet, a thesaurus in the field of town planning. [less ▲]

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See detailLa réserve faunique de Bandia (Sénégal) : modèle ou contre-modèle pour l’Afrique de l’Ouest ?
Vermeulen, Cédric ULg

in Parcs & Réserves (2010), 65(2), 23-27

Detailed reference viewed: 169 (11 ULg)