References of "2012"
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See detailLANDSAFE: LANDING SITE RISK ANALYSIS SOFTWARE FRAMEWORK
Schmidt, Ralph; Bostelmann, Jonas; Cornet, Yves ULg et al

in International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (2012), XXXIX(B4), 505-510

The European Space Agency (ESA) is planning a Lunar Lander mission in the 2018 timeframe that will demonstrate precise soft landing at the polar regions of the Moon. To ensure a safe and successful ... [more ▼]

The European Space Agency (ESA) is planning a Lunar Lander mission in the 2018 timeframe that will demonstrate precise soft landing at the polar regions of the Moon. To ensure a safe and successful landing a careful risk analysis has to be carried out. This is comprised of identifying favorable target areas and evaluating the surface conditions in these areas. Features like craters, boulders, steep slopes, rough surfaces and shadow areas have to be identified in order to assess the risk associated to a landing site in terms of a successful touchdown and subsequent surface operation of the lander. In addition, global illumination conditions at the landing site have to be simulated and analyzed. The Landing Site Risk Analysis software framework (LandSAfe) is a system for the analysis, selection and certification of safe landing sites on the lunar surface. LandSAfe generates several data products including high resolution digital terrain models (DTMs), hazard maps, illumination maps, temperature maps and surface reflectance maps which assist the user in evaluating potential landing site candidates. This paper presents the LandSAfe system and describes the methods and products of the different modules. For one candidate landing site on the rim of Shackleton crater at the south pole of the Moon a high resolution DTM is showcased. * Corresponding [less ▲]

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See detailLes recommandations du Comité consultatif de Bioéthique relatives aux personnes vulnérables
Genicot, Gilles ULg

in Revue de Droit de la Santé = Tijdschrift voor Gezondheidsrecht (2012)

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See detailLa Domus dei Bucrani e il sistema decorativo dell’oecus dei Nani
Morard, Thomas ULg; Girard, Thibault

in Bocherens, Christophe (Ed.) Nani in Festa. Iconografia, religione e politica a Ostia durante il secondo triumvirato (2012)

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See detailY a-t-il encore une place pour la double inhibition du système rénine-angiotensine en 2012?
Krzesinski, Jean-Marie ULg; Scheen, André ULg

in Revue Médicale Suisse (2012), 8(351), 1598-1603

The blockade of the renin-angiotensin system (RAS) improves the prognosis of patients with complications related to diabetes, hypertension or, in general, atherosclerosis. Several observational studies ... [more ▼]

The blockade of the renin-angiotensin system (RAS) improves the prognosis of patients with complications related to diabetes, hypertension or, in general, atherosclerosis. Several observational studies have suggested the use of a dual blockade of the RAS to benefit from a better cardiorenal protection. However, recent randomized controlled studies failed to demonstrate that a dual blockade exert a better protection than single blockade, but showed a higher risk for renal complications and hyperkalemia. To decrease the residual risk, other opportunities may be recommended such as reinforcement of low salt diet, use of supraphysiological dose of a monotherapy inhibiting the RAS (perhaps prescribed at the evening) or addition of an aldosterone antagonist. However, all these approaches, as dual therapy, may also increase the risk of hypotension and renal insufficiency and thus require to be used under strict medical supervision. [less ▲]

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See detailRole du stress psychosocial dans les maladies complexes.
Scantamburlo, Gabrielle ULg; SCHEEN, André ULg

in Revue Médicale de Liège (2012), 67(5-6), 234-42

Complex diseases are chronic diseases where the interrelations between genetic predisposition and environmental factors play an essential role in the arisen and the maintenance of the pathology. Upon ... [more ▼]

Complex diseases are chronic diseases where the interrelations between genetic predisposition and environmental factors play an essential role in the arisen and the maintenance of the pathology. Upon psychological stress, the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system are activated resulting in release of glucocorticoids and catecholamines. Chronic stress may induce complex diseases where alterations of nervous, endocrine and immune systems are involved. Thus, chronic stress is more likely to induce a range of effects, depending on the capacity of the subject to cope with stress. CRH ("Corticotropin Releasing Hormone") is a key factor in the stress-immunity relationship. In this article, we propose an overview of the interrelations between central nervous, endocrine and immune systems and implications for health and diseases. The objective for the clinician is to propose therapeutic strategies targeting changes in human behaviour to cope with a potentially stressful environment. [less ▲]

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See detailEstimation of temporal lags for the inference of gene regulatory networks from time series (inproceedings) Author
Lopes, Miguel; Meyer, Patrick ULg; Bontempi, Gianluca

in In proceedings of BENELEARN'12 (2012)

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See detailLow-rank optimization with trace norm penalty
Mishra, Bamdev ULg; Meyer, Gilles ULg; Bach, Francis et al

E-print/Working paper (2012)

The paper addresses the problem of low-rank trace norm minimization. We propose an algorithm that alternates between fixed-rank optimization and rank-one updates. The fixed-rank optimization is ... [more ▼]

The paper addresses the problem of low-rank trace norm minimization. We propose an algorithm that alternates between fixed-rank optimization and rank-one updates. The fixed-rank optimization is characterized by an efficient factorization that makes the trace norm differentiable in the search space and the computation of duality gap numerically tractable. The search space is nonlinear but is equipped with a particular Riemannian structure that leads to efficient computations. We present a second-order trust-region algorithm with a guaranteed quadratic rate of convergence. Overall, the proposed optimization scheme converges super-linearly to the global solution while still maintaining complexity that is linear in the number of rows of the matrix. To compute a set of solutions efficiently for a grid of regularization parameters we propose a predictor-corrector approach on the quotient manifold that outperforms the naive warm-restart approach. The performance of the proposed algorithm is illustrated on problems of low-rank matrix completion and multivariate linear regression. [less ▲]

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See detailAbnormal vascular architecture at the placental-maternal interface in placenta increta
CHANTRAINE, Frédéric ULg; Blacher, Silvia ULg; Berndt, Sarah et al

in American Journal of Obstetrics and Gynecology (2012), 207(3), 1881-9

Objective The objective of the study was to characterize the vascular architecture at the placental-maternal interface in pregnancies complicated by placenta increta and normal pregnancies. Study Design ... [more ▼]

Objective The objective of the study was to characterize the vascular architecture at the placental-maternal interface in pregnancies complicated by placenta increta and normal pregnancies. Study Design Vessel numbers and cross-section area density and spatial and area distributions in 13 placenta-increta placental beds were compared with 9 normal placental beds using computer-assisted image analysis of whole-slide CD31 immunolabeled sections. Results The total areas occupied by vessels in normal and placenta-increta placental beds were comparable, but vessels were significantly sparser and larger in the latter. Moreover, placenta-increta–vessel distributions (area and distance from the placental–myometrial junction) were more heterogeneous. Conclusion Size and spatial organization of the placenta-increta vascular architecture at the placental-maternal interface differed from normal and might partially explain the severe hemorrhage observed during placenta-increta deliveries. [less ▲]

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See detailLa compatibilité du métier de secrétaire communal avec d’autres fonctions : aperçu de lege lata, de lege peractura et de lege ferenda
Donnay, Luc ULg

in L'indépendance du secrétaire communal : utopie ou réalité? (2012)

Il s'agit d'un examen de la compatibilité du métier de secrétaire communal avec d'autres fonctions au regard de la situation législative actuelle et des projets de réformes en cours.

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See detailDerrière les mots… Que reste-t-il ?
Dodeigne, Jérémy ULg; Mercenier, Heidi; Perrez, Julien ULg et al

in Perrez, Julien; Reuchamps, Min (Eds.) Les relations communautaires en Belgique: Approches politiques et linguistiques (2012)

La Belgique connaît depuis de nombreuses années des relations, des tensions, des conflits, des problèmes qui sont généralement qualifiés de communautaires. Ce sont les relations entre les deux grandes ... [more ▼]

La Belgique connaît depuis de nombreuses années des relations, des tensions, des conflits, des problèmes qui sont généralement qualifiés de communautaires. Ce sont les relations entre les deux grandes communautés du pays : les Flamands, d’une part, et les Francophones, d’autre part. Même leur définition, leur délimitation ainsi que leur appellation est source de difficultés non seulement politiques mais également linguistiques. On ne sera dès lors pas surpris qu’au cœur de ces relations s’entrechoquent une multitude de représentations au sein et entre ces deux grandes communautés. Ces représentations sont véhiculées mais aussi façonnées et contestées par les discours qu’ils soient politiques, médiatiques ou même citoyens. L’objectif de ce livre est d’explorer ce qui se cache derrière ces mots afin d’en dégager les systèmes de pensées qui ne sont peut-être pas explicitement exprimés et qui pourtant, une fois mis au jour, permettent de mieux comprendre les tensions liées à l’avenir de la Belgique. Linguistes et politologues ont certainement beaucoup à partager dans ce décryptage des images et métaphores qui révèlent nos opinions et attitudes politiques. [less ▲]

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See detailComparison of different approaches to evaluate External Quality Assessment Data.
Coucke, Wim; China, Bernard; Delattre, Isabelle et al

in Clinica Chimica Acta (2012), 413(5-6), 582-6

In EQA programs, Z-scores are used to evaluate laboratory performance. They should indicate poorly performing laboratories, regardless of the presence of outliers. For this, two different types of ... [more ▼]

In EQA programs, Z-scores are used to evaluate laboratory performance. They should indicate poorly performing laboratories, regardless of the presence of outliers. For this, two different types of approaches exist. The first type are "outlier-based" approaches, which first exclude outlying values, calculate the average and standard deviation on the remaining data and obtain Z-scores for all values (e.g., Grubbs and Dixon). The second type includes the "robust" approaches (e.g., Tukey and Qn or the algorithm recommended by ISO). The different approaches were assessed by randomly generated samples from the Normal and Student t distributions. Part of the sample data were contaminated with outliers. The number of false and true outliers was recorded and subsequently, Positive and Negative Predictive Values were derived. Also, the sampling mean and variability were calculated for location and scale estimators. The various approaches performed similarly for sample sizes above 10 and when outliers were at good distance from the centre. For smaller sample sizes and closer outliers, however, the approaches performed quite differently. Tukey's method was characterised by a high true and a high false outlier rate, while the ISO and Qn approaches demonstrated weak performance. Grubbs test yielded overall the best results. [less ▲]

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See detailA longirostrine Temnodontosaurus (Ichthyosauria) with comments on Early Jurassic ichthyosaur niche partitioning and disparity
Martin, Jeremy; Fischer, Valentin ULg; Vincent, Peggy et al

in Palaeontology (2012), 55(1), 9951005

We describe an almost complete ichthyosaur skeleton from the middle Toarcian (Lower Jurassic) of the Beaujolais foothills near Lyon, France, and assign it to Temnodontosaurus azerguensis sp. nov. This new ... [more ▼]

We describe an almost complete ichthyosaur skeleton from the middle Toarcian (Lower Jurassic) of the Beaujolais foothills near Lyon, France, and assign it to Temnodontosaurus azerguensis sp. nov. This new species exhibits cranial peculiarities such as a thin, elongated and possibly edentulous rostrum, as well as a reduced quadrate. These characters indicate dietary preferences that markedly differ from other species referred to Temnodontosaurus, a genus previously considered as the top predator of the Early Jurassic seas. Despite a conservative postcranial skeleton, we propose that Temnodontosaurus is one of the most ecologically disparate genera of ichthyosaurs, including apex predators and now a soft prey longirostrine hunter. Ammonites collected from the same stratigraphic level as the described specimen indicate that the new species is somewhat younger (bifrons ammonite zone) than the most known Toarcian ichthyosaurs and therefore slightly postdates the interval of severe environmental changes and marine invertebrate extinctions known as the Toarcian Oceanic Anoxic Event. The present study therefore raises the question of whether postcrisis recovery of vertebrate faunas, including the radiation of Temnodontosaurus into a new ecological niche, may have been a consequence of marine ecosystem reorganization across this event. [less ▲]

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See detailHITUBES PROJECT DESIGN AND INTEGRITY ASSESSMENT OF HIGH STRENGTH TUBULAR STRUCTURES FOR EXTREME LOADING CONDITIONS - D8
Bursi, Oreste S.; Kumar, Anil; Demonceau, Jean-François ULg

Report (2012)

D8.1: Evaluation of the results of the SWOT analysis. D8.2: Evaluation of the results of the monitoring activity.

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See detailImpact of an anxious social situation on emotional facial expressions (EFEs) recognition in children
Dethier, Marie ULg; Taskin, Aslihan Serap; Blairy, Sylvie ULg

in Revue Francophone de Clinique Comportementale et Cognitive (2012), 17(2), 2-9

This study addresses the relationship between the capacity of emotional facial expressions (EFEs) recognition and self-esteem in children placed in an anxious social situation. Seventy children (8 – 12 ... [more ▼]

This study addresses the relationship between the capacity of emotional facial expressions (EFEs) recognition and self-esteem in children placed in an anxious social situation. Seventy children (8 – 12 years) were placed in an anxious social situation of performance in which they were instructed to count aloud backwards, beginning at 200 in decrements of 13. After that, children were assessed on a decoding test of 16 photographs depicting EFE. For each photograph, they evaluated the presence of nine types of emotions. They also completed the Self-Perception Profile for Children (Pierrehumbert et al., 1987). No correlations emerged between the accuracy of EFE recognition and an increase of anxious feelings after the anxious social situation. However, self-esteem was correlated with performance on the EFE recognition test. Moreover, the lower the child’s level of self-esteem was, the more he/she perceived negative emotions in EFEs. In conclusion, social anxiety doesn’t seem to interfere with EFEs recognition performance in an anxious social situation. However, low level of self-esteem in children appears to be associated with deficits and interpretative bias in EFEs recognition in an anxious social situation. [less ▲]

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See detailLes neurosciences posent-elles au droit des questions nouvelles?
Sibony, Anne-Lise ULg

Conference (2012)

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See detailEuropese rechtspraak : actualia/ actualités: jurisprudence de la Cour de Justice
Durviaux, Ann-Lawrence ULg

in Marchés et Contrats Publics = Overheidsopdrachten en -Overeenkomsten (2012), 2/2012(2/2012), 239-245

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See detailLes relations communautaires en Belgique: approches politiques et linguistiques
Perrez, Julien ULg; Reuchamps, Min ULg

Book published by L’Harmattan / Academia s.a. (2012)

La Belgique connaît depuis de nombreuses années des tensions ou des conflits, qui sont généralement qualifiés de communautaires. Au cœur de ces relations s’entrechoquent une multitude de représentations ... [more ▼]

La Belgique connaît depuis de nombreuses années des tensions ou des conflits, qui sont généralement qualifiés de communautaires. Au cœur de ces relations s’entrechoquent une multitude de représentations au sein et entre les deux grandes communautés. Ces représentations sont véhiculées mais aussi façonnées et contestées par les discours qu’ils soient politiques, médiatiques ou même citoyens. Alliant science politique et linguistique, l’objectif de ce livre est d’explorer ce qui se cache derrière les mots pour mieux comprendre les tensions et les conflits communautaires. Augmenté de regards croisés du Royaume-Uni, de la Suisse et du Canada, cet ouvrage constitue ainsi un point de rencontre entre linguistes et politologues où chacun tente, à partir de sa discipline, de décrypter les images et métaphores qui révèlent nos représentations politiques. Il offre ainsi un éclairage interdisciplinaire original des relations communautaires en Belgique. [less ▲]

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See detailUne nouvelle cité pour les seniors
Squelard, Gilles ULg

in Garcet, Marc (Ed.) Mixité sociale et progrès humain (2012)

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See detailRobustness of the scanning second harmonic generation microscopy technique for characterization of hotspot patterns in plasmonic nanomaterials
Valev, VK; De Clercq, B; Zheng, X et al

in Proceedings of SPIE (2012), 8424

Scanning second harmonic generation (SHG) microscopy is becoming an important tool for characterizing nanopatterned metal surfaces and mapping plasmonic local field enhancements. Here we study G-shaped ... [more ▼]

Scanning second harmonic generation (SHG) microscopy is becoming an important tool for characterizing nanopatterned metal surfaces and mapping plasmonic local field enhancements. Here we study G-shaped and mirror-G-shaped gold nanostructures and test the robustness of the experimental results versus the direction of scanning, the numerical aperture of the objective, the magnification, and the size of the laser spot on the sample. We find that none of these parameters has a significant influence on the experimental results. [less ▲]

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