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See detailThe Sceptical President: Václav Klaus' Influence on Czech Public Opinion on Climate Change
De Pryck, Kari; Gemenne, François ULg

in Climatic Change (in press)

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See detailLevallois et Gravettien
Otte, Marcel ULg; Noiret, Pierre ULg

in Praehistoria (in press)

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein ... [more ▼]

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein du Gravettien touchent autant les processus de symbolisation dans l’art et les sépultures. Elles affectent différents substrats eurasiatiques, plutôt septentrionaux, comme mis en réserve dès les Néandertaliens. [less ▲]

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See detailL'idéologie de la Nieuw‐Vlaamse Alliantie
Jamin, Jérôme ULg

in Revue européenne de géopolitique Outre-Terre (in press)

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See detailLa maladie de Lyme entre cadrage infectieux, vectoriel et zoonotique : vers une écologisation des problèmes sanitaires ?
Massart, Clémence ULg

in VertigO : la Revue Electronique en Sciences de l'Environnement (in press)

Cet article est consacré à la qualification de la maladie de Lyme en France. Principale pathologie vectorielle de l’hémisphère nord, la maladie de Lyme est transmise par une tique du genre Ixodes (Ixodes ... [more ▼]

Cet article est consacré à la qualification de la maladie de Lyme en France. Principale pathologie vectorielle de l’hémisphère nord, la maladie de Lyme est transmise par une tique du genre Ixodes (Ixodes ricinus en Europe ; Ixodes persulcatus en Asie ; Ixodes scapularis aux États-Unis et au Canada). Les médecins et les malades ont d’abord développé un cadrage infectieux, ancré dans la santé humaine, réservé à Lyme et soumis à une vive controverse. Progressivement, un second cadrage vectoriel s’est structuré autour des entomologistes médicaux puis des écologues, généralement étrangers à la problématique des maladies humaines. Axé sur le vecteur, ce cadrage englobe les autres maladies transmises par Ixodes ricinus en Europe qui, durant les 30 dernières années, n’ont cessé d’être découvertes : bartonnelles, babésioses, tularémie, encéphalite à tiques, etc. Combinée à ces nouvelles pathologies, la notoriété de Lyme a finalement contribué à ouvrir la catégorie « transmission vectorielle » – traditionnellement associée aux moustiques des pays tropicaux – aux tiques et aux maladies de l’hémisphère nord qu’elles véhiculent. Un troisième cadrage axé sur les réservoirs et qualifié de zoonotique commence enfin à se dessiner. Il faut reconnaître dans cette juxtaposition des cadrages – infectieux, vectoriel et zoonotique – une forme d’écologisation des problèmes sanitaires. [less ▲]

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See detailNutritive value of Adenodolichos rhomboideus leaves compared with Leucaena leucocephala and Stylosanthes guianensis forages in indigenous goats in Lubumbashi (DR Congo).
Tshibangu, Muamba Innocent; Nsahlai, Ignatus Verla; Kiatoko, Mangeye Honoré et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (in press)

Forage from three species (Adenodolichos rhomboideus, Leucaena leucocephala, Stylosanthes guianensis) were evaluated by determining chemical composition, voluntary intake and apparent in vivo ... [more ▼]

Forage from three species (Adenodolichos rhomboideus, Leucaena leucocephala, Stylosanthes guianensis) were evaluated by determining chemical composition, voluntary intake and apparent in vivo digestibility of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fibre (NDF) and acid detergent fibre (ADF). Six goats (17.1±0.7 kg) were used in 3 x 3 double latin square design to determine the digestibility and intake of the three forages. Forage from S. guianensis had lower (p<0.001) CP content than L. leucocephala forage and A. rhomboideus leaves. Fibres content (ADF and NDF) were lower (p<0.001) in L. leucocephala (35%) forage than A. rhomboideus (59.5%) leaves and S. guianensis forages (56.5%). L. leucocephala forage was superior in CP, Ash, EE concentrations, digestibility and voluntary intake of CP. A. rhomboideus leaves had lower (p<0.05) apparent digestibility and intake of DM. Digestible CP intake were similar between A. rhomboideus leaves and S. guianensis forages. Low digestibility and voluntary intake of A. rhomboideus leaves may be due to negative effect of anti-nutritional factor such as tannin. Digestible CP was similar for A. rhomboideus leaves and S. guianensis forage. [less ▲]

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See detailRôle et langue de Tchantchès dans les représentations en castelets des romans de chevalerie : le cas des Quatre fils Aymon
Baiwir, Esther ULg; Impe, Anaëlle

in Enquêtes du Musée de la Vie Wallonne (in press)

Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du ... [more ▼]

Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du répertoire liégeois ? Quels sont ses moyens d'action, mais également ses modes d'expression ? Divers registres de langue apparaissent au fil des spectacles ; quels sont ceux prêtés à notre héros ? Et surtout, ce rôle et cette langue ont-ils évolué au fil du temps ? C’est à ces quelques questions que nous tentons de répondre, en observant les différentes interventions de Tchantchès dans les réécritures des aventures des quatre fils Aymon, l’une des œuvres les plus anciennes et les plus fréquemment jouées dans les théâtres liégeois dévolus aux comédiens de bois. [less ▲]

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See detailIntroduction
Dumont, Jonathan ULg; Masson, Christophe ULg

in Moyen Age (Le) (in press), 120(3-4),

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See detailSens et signification dans l'esthétique de Mallarmé
Durand, Pascal ULg

in Signata. Annales des Sémiotiques = Annals of Semiotics (in press), 5

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See detailInter-method variability in bone alkaline phosphatase measurement : clinical impact on the management of dialysis patients
CAVALIER, Etienne ULg; Souberbielle, Jean-Claude; GADISSEUR, Romy ULg et al

in Clinical Biochemistry (in press)

BACKGROUND: Bone-specific alkaline phosphatase (BAP) is now recommended to assess bone turnover in hemodialysis (HD) patients. However, little is known about potential variability between methods ... [more ▼]

BACKGROUND: Bone-specific alkaline phosphatase (BAP) is now recommended to assess bone turnover in hemodialysis (HD) patients. However, little is known about potential variability between methods available to measure BAP. METHODS: We measured BAP in 76 HD patients with six different assays (Beckman-Coulter Ostase IRMA, Beckman-Coulter Ostase Access, IDS iSYS Ostase, IDS Ostase enzyme immunoassay, DiaSorin Liaison Ostase and Quidel MicroVue BAP). RESULTS: We observed a high correlation between all the assays ranging from 0.9948 (IDS iSYS vs. IDS EIA) to 0.9215 (DiaSorin Liaison vs. Quidel MicroVue). However, using the regression equations, the equivalent concentration of a Beckman-Coulter Access value of 10μg/L can range from 7.7 to 14.4μg/L and of 20μg/L can range from 16.9 to 27.9μg/L with other assays. According to Beckman-Coulter Access, 13%, 50% and 37% of the patients presented BAP values ≤10, between 10 and 20 and ≥20μg/L, respectively. Discrepancies are observed when other assays are used (concordance from 10 to 100%). CONCLUSIONS: Analytical problems leading to inter-method variation should be overcome to improve the usefulness of this marker in clinical practice. According to correlation results, recalibration of BAP assays is necessary but should not be a major issue. [less ▲]

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See detailSpinoza contre Spinoza: l'antihumanisme de Lordon, un althussérisme?
Mancuso, Eva ULg

in Dissensus (in press), 6

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See detailL'atlas à l'épreuve de l'image en mouvement (Warburg, Farocki, Didi-Huberman)
Hagelstein, Maud ULg; Hamers, Jérémy ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)

Partant des travaux récents de Georges Didi-Huberman sur l’atlas d’images (A. Warburg) comme outil et support d’une nouvelle heuristique du montage, ce texte confronte l’installation Histoires de fantômes ... [more ▼]

Partant des travaux récents de Georges Didi-Huberman sur l’atlas d’images (A. Warburg) comme outil et support d’une nouvelle heuristique du montage, ce texte confronte l’installation Histoires de fantômes pour grandes personnes (G. Didi-Huberman, A. Gisinger, 2012), composée pour partie d’images en mouvement, à la pensée de la table warburgienne comme lieu d’une perpétuelle reconfiguration et d’une nouvelle lisibilité du monde. Se pourrait-il en effet qu’une image en mouvement, prise d’ordinaire dans un continuum clos, se dote, à travers le montage, des mêmes potentialités critiques – c’est-à-dire d’un même pouvoir inquiétant – que l’image fixe offerte au déambulateur de l’atlas ? [less ▲]

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See detailLong term Immune Reconstitution and infection burden after Mismatched Hematopoietic Stem Cell Transplantation
SERVAIS, Sophie ULg; Lengline, Etienne; Porcher, Raphael et al

in Biology of Blood & Marrow Transplantation (in press)

Mismatched unrelated donor (MMUD) or umbilical cord blood (UCB) can be chosen as alternative donors for allogeneic stem cell transplantation but might be associated with long lasting immune deficiency ... [more ▼]

Mismatched unrelated donor (MMUD) or umbilical cord blood (UCB) can be chosen as alternative donors for allogeneic stem cell transplantation but might be associated with long lasting immune deficiency. Sixty-six patients who underwent a first transplantation from either UCB or 9/10 MMUD (n= 36) and who survived beyond 3 months were evaluated. Immune reconstitution was prospectively assessed at sequential time points after transplantation. NK, B, CD4+ and CD8+T cells and their subsets as well as regulatory T cells (Treg) were studied. Detailed analyses on infections occurring after 3 months were also assessed. The 18-month cumulative incidences of infection-related death were 8 and 3%, and of infections were 72 and 57% after MMUD and UCB transplantation, respectively. Rates of infection per 12 patient-month were roughly 2 overall (1 for bacterial, 0.9 for viral and 0.3 for fungal infections). Memory, naïve CD4+ and CD8+T cells, naïve B cells and Treg cells reconstitution between the 2 sources was roughly similar. Absolute CD4+T cells hardly reached 500 per μL by one year posttransplantation and most B cells were of naïve phenotype. Correlations between immune reconstitution and infection were then performed by multivariate analyses. Low CD4+ and high CD8+T cells absolute counts at 3 months were linked to increased risks of overall and viral (but not bacterial) infections. When assessing for the naïve/memory phenotypes at 3 months among the CD4+ T cell compartment, higher percentages of memory subsets were protective against late infections: central memory CD4+T cells protected against overall and bacterial infections; late effector memory CD4+T cells protected against overall, bacterial and viral infections. At the opposite, high percentage of effector- and late effector-memory subsets at 3 months among the CD8+ T cell compartment predicted higher risks for viral infections. Patients transplanted from alternative donors represent a population with very high risk of infection. Detailed phenotypic analysis of immune reconstitution may help to evaluate infection risk and to adjust infection prophylaxis. [less ▲]

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See detailOccurrence of bottlenose dolphins (Tursiops truncatus) in the Río Negro Estuary, Argentina, and their mid-distance movements along the Northeast Patagonian coast
Failla, Mauricio; Seijas, Veronica; Vermeulen, Els ULg

in Latin American Journal of Aquatic Mammals (in press)

A systematic study on the presence of bottlenose dolphins (Tursiops truncatus) in the Río Negro Estuary (RNE), Patagonia Argentina, was carried out between the months March – July from 2008 to 2011. Data ... [more ▼]

A systematic study on the presence of bottlenose dolphins (Tursiops truncatus) in the Río Negro Estuary (RNE), Patagonia Argentina, was carried out between the months March – July from 2008 to 2011. Data on the dolphin’s activity patterns were gathered via an Ad Libitum focal group sampling mode accompanying dorsal fin images taken for identification and re-identification of individuals. A total effort of 188 h resulted in 58 h of positive observation of 124 dolphin groups (sightings per unit effort (SPUE) = 0.66 groups/h). Data analysis showed two main activity states for the observed groups, travelling (65%) and foraging (26%). The remaining 9% of the groups were involved in other activity states. The photo-identification effort, which started opportunistically in 2006, resulted in a catalogue of 21 individual dolphins, with a total mean re-identification rate of 9 days (max = 24 days). When comparing these pictures to the existing catalogue of Bahía San Antonio (approximately 200 km west from the study area) dorsal fins of 20 individuals could be positively matched and most (n = 17) could be subsequently re-identified in both areas, indicating their long distance movements along the North Patagonian coast during the austral autumn months. This season coincides with the lowest amount of feeding activity observed in Bahía San Antonio. This study suggests that bottlenose dolphins enter RNE, mainly during autumn, to forage. It appears that the search for food resources may be the trigger for their movement patterns along the North Patagonian coast during this season, at least for certain individuals. More research is needed to accurately confirm this hypothesis. [less ▲]

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See detailSpinoza contre Spinoza: l'antihumanisme de Lordon, un althussérisme?
Mancuso, Eva ULg

in Dissensus (in press), 6

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See detailHigh TMEM45A expression is correlated to epidermal keratinization
Hayez, Aurélie; Malaisse, Jérémy; Rogiers, Edith et al

in Experimental Dermatology (in press)

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See detailSpinoza contre Spinoza: l'antihumanisme de Lordon, un althussérisme?
Mancuso, Eva ULg

in Dissensus (in press), 6

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See detailWhen women support the patriarchal family. The dynamics of marriage in a Gécamines mining camp (Katanga province, DR Congo)
Rubbers, Benjamin ULg

in Journal of Historical Sociology (in press)

Based on ethnographic research among the ex-Gécamines workers of Panda (Likasi, DR Congo), this article studies the dynamics of the spousal relationship in a post-industrial context that has been long ... [more ▼]

Based on ethnographic research among the ex-Gécamines workers of Panda (Likasi, DR Congo), this article studies the dynamics of the spousal relationship in a post-industrial context that has been long characterized by paternalism. The results of this research suggest that, though men and women living in this mining community talk about their spousal relationships by invoking the ideal of Christian marriage promoted during the colonial period, in practice such relationships faced important changes following Congolese independence in 1960. The nationalization and subsequent dramatic decline of Gécamines caused changes which directly affected three central dimensions of the colonial family model, namely monogamy, the ideal of domesticity, and male authority. If men and women continue to reference this model, it is because, in times of growing poverty, it allows spouses to remind one other of their respective duties as docile housewives and responsible husbands, and to command respect as virtuous Christian families in the local community. [less ▲]

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See detailSpinoza contre Spinoza: l'antihumanisme de Lordon, un althussérisme?
Mancuso, Eva ULg

in Dissensus (in press), 6

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See detailIdentification of cardiac repercussions after intense and prolonged concentric isokinetic exercise in young sedentary people.
LE GOFF, Caroline ULg; Kaux, Jean-François ULg; Couffignal, Vincent et al

in Clinical physiology and functional imaging (in press)

INTRODUCTION: Cardiopathies are the world's leading cause of mortality and morbidity. Although rare, cardiovascular accidents can occur during intense and infrequent sporting activity, particularly among ... [more ▼]

INTRODUCTION: Cardiopathies are the world's leading cause of mortality and morbidity. Although rare, cardiovascular accidents can occur during intense and infrequent sporting activity, particularly among those who are unaware of their heart condition. The development of cardiospecific biochemical markers has led to a reconsideration of the role of biology in the diagnosis of cardiovascular illnesses. The aim of this study therefore was, through the use of cardiac biomarker assays, to highlight the impact of sustained physical effort in the form of intense and prolonged concentric isokinetic exercise and to research potential cardiovascular risks. MATERIALS AND METHODS: Eighteen subjects participated in a maximal concentric isokinetic exercise involving 30 knee flexion-extensions for each leg. Five blood tests were taken to study the kinetics of the cardiac biomarkers. Haemodynamic parameters were measured continuously using a Portapres, and respiratory parameters were measured using a Sensormedics Vmax 29C. RESULTS: The results showed significant increases in the creatine kinase, myoglobin, homocysteine and haemoglobin cardiac markers. Evolutionary trends were also observed for the following biomarkers: NT-proBNP, myeloperoxydase and C-reactive protein. All the physiological parameters measured presented statistically significant changes. CONCLUSION: Isokinetic effort leads to the release of cardiac markers in the blood, but these do not exceed the reference values in healthy subjects. Maximal concentric isokinetic exercise does not, therefore, lead to an increased risk of cardiovascular pathologies. [less ▲]

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See detailSpinoza contre Spinoza: l'antihumanisme de Lordon, un althussérisme?
Mancuso, Eva ULg

in Dissensus (in press), 6

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See detailNégocier une majorité politique et devenir bourgmestre en Belgique. Quelles influences des droits régionaux ?
Grandjean, Geoffrey ULg

in Revue Régionale de Droit [= RRD] (in press)

Depuis 2001, les Régions sont compétentes en matière d’organisation et d’élection des pouvoirs locaux. Elles ont adopté des règles différentes. Dans quelle mesure ces règles influencent-elles la ... [more ▼]

Depuis 2001, les Régions sont compétentes en matière d’organisation et d’élection des pouvoirs locaux. Elles ont adopté des règles différentes. Dans quelle mesure ces règles influencent-elles la négociation d’une majorité politique et la désignation des bourgmestres en Belgique ? Afin de répondre à cette question, des entretiens semi-directifs ont été réalisés avec plusieurs bourgmestres et échevin issus de communes localisées dans les trois Régions. Des différences entre Régions mais également au sein de celles-ci ont été relevées. Les dispositions relatives au mode de désignation du bourgmestre sont primordiales pour comprendre les dynamiques de négociations politiques. Au final, cet article tisse les liens entre les normes juridiques et les jeux des acteurs politiques. [less ▲]

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See detailProteins in the gas phase
Meyer, Tim; Gabelica, Valérie ULg; Grubmüller, Helmut et al

in Wiley Interdisciplinary Reviews: Computational Molecular Science (in press)

Proteins are complex macromolecules that evolved over billions of years to be active in aqueous solution. Water is a key element that stabilizes their structure, and most structural studies on proteins ... [more ▼]

Proteins are complex macromolecules that evolved over billions of years to be active in aqueous solution. Water is a key element that stabilizes their structure, and most structural studies on proteins have thus been carried out in aqueous environment. However, recent experimental approaches have opened the possibility to gain structural information on proteins from gas-phase measurements. The obtained results revealed significant structural memory in proteins when transferred from water to the gas phase. However, after several years of experimental and theoretical research, the nature of the structural changes induced by vaporization, the exact characteristics of proteins in the gas phase, and the physicochemical forces stabilizing dehydrated proteins are still unclear. We will review here these issues using both experimental and theoretical sources of information. [less ▲]

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See detailData processing of vibrational chemical imaging for pharmaceutical applications.
Sacre, Pierre-Yves ULg; De Bleye, Charlotte ULg; Chavez, Pierre-François ULg et al

in Journal of Pharmaceutical & Biomedical Analysis (in press)

Vibrational spectroscopy (MIR, NIR and Raman) based hyperspectral imaging is one of the most powerful tools analyze pharmaceutical preparation. Indeed, it combines the advantages of vibrational ... [more ▼]

Vibrational spectroscopy (MIR, NIR and Raman) based hyperspectral imaging is one of the most powerful tools analyze pharmaceutical preparation. Indeed, it combines the advantages of vibrational spectroscopy to imaging techniques and allows therefore the visualization of distribution of compounds, crystallization processes. However, these techniques provide a huge amount of data that must be processed to extract the relevant information. This review presents fundamental concepts of hyperspectral imaging, the basic theory of the most used chemometric tools used to pre-process, process and post-process the generated data. The last part of the present paper focuses on pharmaceutical applications of hyperspectral imaging and highlights the data processing approaches to enable the reader making the best choice among the different tools available. [less ▲]

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See detailLe point sur l’évaluation de la force des muscles respiratoires
Kellens, Isabelle ULg; Crielaard, Jean-Michel ULg

in Revue Médicale de Liège (in press)

The strength of respiratory muscles is crucial for quality of life, especially for patients with lung or neurological disorders. Several methods can be used to assess them: i.e direct or indirect ... [more ▼]

The strength of respiratory muscles is crucial for quality of life, especially for patients with lung or neurological disorders. Several methods can be used to assess them: i.e direct or indirect, voluntary or involuntary. The conventional spirometry method assesses indirectly the respiratory function by measuring maximum inspiratory and expiratory pressure, which reflects the coordination of all respiratory muscles. Techniques of magnetic and electrical stimulation can detect a specific muscle dysfunction, independently of the patient's motivation, however they are invasive methods as measurements are made in the esophagus and stomach. The voluntary techniques are generally non-invasive and require patient's cooperation. Measures of respiratory muscle strength, coupled to a conventional spirometry, can predict the development of ventilatory support in patients at risk, and may be useful during weaning from mechanical ventilation in intensive care units. [less ▲]

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See detailThe “Tuchlein” Colours in the Strasbourg Family Text: Recipes for Anthocyanin Pigments
Neven, Sylvie ULg; Sanyova, Jana

in Dyes in History and Archaeology (in press)

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See detailDevelopment by the sol–gel process of highly dispersed Ni–Cu/SiO2 xerogel catalysts for selective 1,2-dichloroethane hydrodechlorination into ethylene
Pirard, Sophie ULg; Mahy, Julien ULg; Pirard, Jean-Paul ULg et al

in Microporous and Mesoporous Materials (in press)

Ni–Cu/SiO2 xerogel catalysts have been synthesized by cogelation of industrial tetraethoxysilane (Dynasil) and chelates of Ni and Cu with industrial 3-(2-aminoethylamino)propyltrimethoxysilane (Dynasylan ... [more ▼]

Ni–Cu/SiO2 xerogel catalysts have been synthesized by cogelation of industrial tetraethoxysilane (Dynasil) and chelates of Ni and Cu with industrial 3-(2-aminoethylamino)propyltrimethoxysilane (Dynasylan DAMO) in industrial ethanol denatured with diethyl phthalate. Despite the use of industrial grade reagents, highly dispersed bimetallic Ni–Cu/SiO2 xerogel catalysts were obtained. These samples are composed of completely accessible Ni–Cu alloy crystallites with sizes of 1.6–3.4 nm located inside silica particles exhibiting a monodisperse microporous distribution. It appears that the bimetallic complex acts as a nucleation agent in the formation of silica particles. The combination of results obtained from the calculation of the metal ratio in catalysts, H2 chemisorption and transmission electron microscopy allowed calculating the surface composition of the nickel–copper particles in Ni–Cu/SiO2 cogelled xerogel catalysts. Values obtained indicate a very pronounced surface enrichment with copper. While 1,2-dichloroethane hydrodechlorination over pure nickel mainly produces ethane, increasing copper content in bimetallic catalysts results in an increase in ethylene selectivity. The specific consumption rate of 1,2-dichloroethane decreases when copper loading increases. The turnover frequency, that is, the number of catalytic cycle per active site (nickel atom and its surrounding copper atoms) and per second, seems to be independent of surface composition of alloy particles. [less ▲]

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See detailUne tablette scolaire copte de Lecce : TUL inv. C 1
Carlig, Nathan ULg; Delattre, Alain

in Studi di Egittologia e di Papirologia (in press)

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See detailSur Capitalisme, désir et servitude. Lettre à Frédéric Lordon
Pieron, Julien ULg

in Dissensus (in press), 6(printemps 2014),

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See detailSmallholder pig production systems along a periurban-rural gradient in the Western provinces of the Democratic Republic of the Congo
Kambashi Mutiaka, Bienvenu ULg; Picron, Pascale ULg; Boudry, Christelle ULg et al

in Journal of Agriculture and Rural Development in the Tropics and Subtropics (in press)

In the Democratic Republic of the Congo (DRC), pigs are raised almost exclusively by smallholders either in periurban areas of major cities such as Kinshasa or in rural villages. Unfortunately, little ... [more ▼]

In the Democratic Republic of the Congo (DRC), pigs are raised almost exclusively by smallholders either in periurban areas of major cities such as Kinshasa or in rural villages. Unfortunately, little information is available regarding pig production in the Western part of the DRC, wherefore a survey was carried out to characterize and compare 319 pig production systems in their management and feeding strategies, along a periurban - rural gradient in Western provinces of the DRC. Pig breeding was the main source of income (43 %) and half of respondent were active in mixed pig and crop production, mainly vegetable garden. Depending on the location, smallholders owned on average 18 pigs, including four sows. Piglet mortality rate varied from 9.5 to 21.8% while average weaned age ranged between 2.2 and 2.8 months. The major causes of mortality reported by the farmers were African swine fever 98%, Swine erysipelas (60%), erysipelas trypanosomiasis (31 %), Swine worm infection (17 %), and diarrhoea (12 %). The majority of the pigs were reared in pens without free roaming and fed essentially with locally available by-products and forage plants whose nature varied according with the location of the farm. The pig production systems depended on the local environment; particularly in terms of workforces, herd structure and characteristics, production parameters, pig building materials, selling price and in feed resources. It can be concluded that an improvement of Congolese pig production systems should consider (1) a reduction of inbreeding, (2) an improvement in biosafety to reduce the incidence of African swine fever and the spread of other diseases, and (3) an improvement in feeding practices. [less ▲]

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See detailDominant amphipods of Posidonia oceanica seagrass meadows display considerable trophic diversity
Michel, Loïc ULg; Dauby, Patrick ULg; Gobert, Sylvie ULg et al

in Marine Ecology (in press)

Gut content examination and trophic markers (fatty acids, stables isotopes of C and N) were combined to delineate the diet of the dominant species of amphipods from Mediterranean Posidonia oceanica ... [more ▼]

Gut content examination and trophic markers (fatty acids, stables isotopes of C and N) were combined to delineate the diet of the dominant species of amphipods from Mediterranean Posidonia oceanica seagrass meadows and to highlight trophic diversity among this community. Our results indicate that, although all dominant species heavily relied on macroalgal epiphytes, considerable interspecific dietary differences existed. Carbon stable isotope ratios notably showed that some of the amphipod species favored grazing on epiphytes from leaves or litter fragments (Apherusa chiereghinii, Aora spinicornis, Gammarus aequicauda), while others like Dexamine spiniventris preferred epiphytes from rhizomes. The remaining amphipods (Caprella acanthifera, Ampithoe helleri and Gammarella fucicola) readily consumed both groups. In addition, SIAR modeling suggested that most species had a mixed diet, and relied on several food items. Fatty acid analysis and gut contents revealed that contribution of microepiphytic diatoms and of benthic and suspended particulate organic matter to the diet of amphipods were anecdotal. None of the examined species seemed to graze on their seagrass host (low 18:2(n-6) and 18:3(n-3) fatty acids contents), but G. aequicauda partly relied on seagrass leaf detritus, as demonstrated by the lesser 13C-depletion of their tissues. Overall, our findings suggest that amphipods, because of their importance in transfers of organic matter from primary producers and detritus to higher rank consumers, are key-items in P. oceanica associated food webs. [less ▲]

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See detailLes ambiguïtés de l’anthropomorphisme : de la divinité agissante à sa statue dans la céramique grecque
Collard, Hélène ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)

L’image, sous ses divers aspects, a joué un rôle essentiel dans la vie des anciens Grecs, en particulier dans le domaine religieux, puisque elle était l’une des modalités de perception du divin. En Grèce ... [more ▼]

L’image, sous ses divers aspects, a joué un rôle essentiel dans la vie des anciens Grecs, en particulier dans le domaine religieux, puisque elle était l’une des modalités de perception du divin. En Grèce, la figuration anthropomorphe des dieux est largement majoritaire. Toutefois, en se tournant vers un support particulier, le vase peint, et un type de représentation particulier, la statue divine, on montrera ici que l’anthropomorphisme a pu amener une certaine ambiguïté. Dans la céramique, les représentations de statues fonctionnent sur plusieurs modes, selon la chronologie. C’est ce que l’on propose d’analyser, en examinant un groupe de vases décorés d’un thème semblable et sur lesquels une divinité est représentée, mais soit sous la forme d’une figure « vivante », soit d’une statue plus ou moins bien caractérisée. Cette étude permettra d’aborder les concepts de « fixité » et de « mouvement » de/dans l’image, mais aussi d’explorer quelques pistes de réflexions sur l’image divine et, plus largement, sur les modes de représentation du divin en Grèce ancienne. [less ▲]

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See detailAn algorithm recommendation for the management of knee osteoarthritis in Europe and internationally: A report from a task force of the European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO)
Bruyère, Olivier ULg; Cooper, C; Pelletier, JP et al

in Seminars in Arthritis & Rheumatism (in press)

Objectives: Existing practice guidelines for osteoarthritis (OA) analyze the evidence behind each proposed treatment but do not prioritize the interventions in a given sequence. The objective was to ... [more ▼]

Objectives: Existing practice guidelines for osteoarthritis (OA) analyze the evidence behind each proposed treatment but do not prioritize the interventions in a given sequence. The objective was to develop a treatment algorithm recommendation that is easier to interpret for the prescribing physician based on the available evidence and that is applicable in Europe and internationally. The knee was used as the model OA joint. Methods: ESCEO assembled a task force of 13 international experts (rheumatologists, clinical epidemiologists, and clinical scientists). Existing guidelines were reviewed; all interventions listed and recent evidence were retrieved using established databases. A first schematic flow chart with treatment prioritization was discussed in a 1-day meeting and shaped to the treatment algorithm. Fine-tuning occurred by electronic communication and three consultation rounds until consensus. Results: Basic principles consist of the need for a combined pharmacological and non-pharmacological treatment with a core set of initial measures, including information access/education, weight loss if overweight, and an appropriate exercise program. Four multimodal steps are then established. Step 1 consists of background therapy, either non-pharmacological (referral to a physical therapist for re-alignment treatment if needed and sequential introduction of further physical interventions initially and at any time thereafter) or pharmacological. The latter consists of chronic Symptomatic Slow-Acting Drugs for OA (e.g., prescription glucosamine sulfate and/or chondroitin sulfate) with paracetamol at-need; topical NSAIDs are added in the still symptomatic patient. Step 2 consists of the advanced pharmacological management in the persistent symptomatic patient and is centered on the use of oral COX-2 selective or non-selective NSAIDs, chosen based on concomitant risk factors, with intra-articular corticosteroids or hyaluronate for further symptom relief if insufficient. In Step 3, the last pharmacological attempts before surgery are represented by weak opioids and other central analgesics. Finally, Step 4 consists of end-stage disease management and surgery, with classical opioids as a difficult-to-manage alternative when surgery is contraindicated. Conclusions: The proposed treatment algorithm may represent a new framework for the development of future guidelines for the management of OA, more easily accessible to physicians. © 2014 The Authors. [less ▲]

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See detailFirst report of isolation and molecular characterization of bubaline herpesvirus 1 (BuHV1) from Argentinean water buffaloes
Maidana, Silvina; Konrad, José; Craig, Maria et al

in Archives of Virology (in press)

Herpesviruses have mainly co-evolved with their hosts for millions of years. However, bovine herpesvirus 1 (BoHV1) and related ruminant alphaherpesviruses have been reported to cross the species barrier ... [more ▼]

Herpesviruses have mainly co-evolved with their hosts for millions of years. However, bovine herpesvirus 1 (BoHV1) and related ruminant alphaherpesviruses have been reported to cross the species barrier. Bubaline herpesvirus 1 (BuHV1) is an alphaherpesvirus closely related to BoHV1 and BoHV5. According to the serological cross-relationships between ruminant alphaherpesviruses, several surveys have studied the occurrence of BoHV1-related virus infection in wild and domestic ruminant species. Recent studies in Argentina showed an increase in serological prevalence against BoHV1 related viruses in water buffaloes (Bubalus bubalis) population. The aim of this study was to investigate the presence of related ruminant alphaherpesvirus in the Argentinean water buffalo population. BuHV1 was successfully isolated from 5 out of 225 buffaloes analyzed. One isolate was obtained from nasal secretions, and the others were from vaginal swabs. The buffaloes belonged to four different farms located in northeastern Argentina. The isolates were characterized as alphaherpesvirus by direct immunofluorescence using FITC-anti-BoHV1 IgG. Restriction analysis performed with BamHI and BstEII on the complete genome showed differences between the isolates and those from BoHV1 and BoHV5 subtypes. Phylogenetic analysis on both UL27 and US6 showed similarity in tree topology. While three of the isolates grouped together with sequences of BoHV5, two other isolates clustered separately. Genetic analysis of eight concatenated sequences from all isolates and references strains showed high nucleotide sequence identity between BuHV1 and BoHV5. While three of the isolates clustered together with the BoHV5 reference strain, the last two isolates were closely related to an Australian BuHV1 strain. To our knowledge, this is the first report on the isolation and molecular characterization of BuHV1 in South America. Phylogenetic analysis suggested that two different BuHV1 lineages circulate in the Argentinean water buffalo population. [less ▲]

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See detailInfluence of Homogenization Treatment on Physicochemical 4 Properties and Enzymatic Hydrolysis Rate of Pure 5 Cellulose Fibers
Jacquet, Nicolas ULg; Vanderghem, Caroline ULg; Danthine, Sabine ULg et al

in Applied Biochemistry and Biotechnology (in press)

The aim of this study is to compare the effect of different homogenization treat- 12 ments on the physicochemical properties and the hydrolysis rate of a pure bleached 13 cellulose. Results obtained show ... [more ▼]

The aim of this study is to compare the effect of different homogenization treat- 12 ments on the physicochemical properties and the hydrolysis rate of a pure bleached 13 cellulose. Results obtained show that homogenization treatments improve the enzymatic 14 hydrolysis rate of the cellulose fibers by 25 to 100 %, depending of the homogenization 15 treatment applied. Characterization of the samples showed also that homogenization had an 16 impact on some physicochemical properties of the cellulose. For moderate treatment inten- 17 sities (pressure below 500 b and degree of homogenization below 25), an increase of water 18 retention values (WRV) that correlated to the increase of the hydrolysis rate was highlighted. 19 Result also showed that the overall crystallinity of the cellulose properties appeared not to be 20 impacted by the homogenization treatment. For higher treatment intensities, homogenized 21 cellulose samples developed a stable tridimentional network that contributes to decrease 22 cellulase mobility and slowdown the hydrolysis process. [less ▲]

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See detailLes voyages du goût, entre localité et exotisme.
Mescoli, Elsa ULg

in Anthropology of Food: Fumey, G. ; Jackson, P. et Raffard, P. Culture Alimentaires et Territoires (in press)

« Savourer la nourriture et respirer la culture marocaine deviennent une expérience et une émotion unique, à découvrir et à vivre grâce à la combinaison d’arômes, goûts, couleurs, formes et musiques ». Au ... [more ▼]

« Savourer la nourriture et respirer la culture marocaine deviennent une expérience et une émotion unique, à découvrir et à vivre grâce à la combinaison d’arômes, goûts, couleurs, formes et musiques ». Au travers de ce slogan, un renommé restaurant d’inspiration marocaine de la ville de Milan en Italie, invitait ses clients à voyager au travers de leur sensorialité dans une culture alimentaire (et par synecdoque, une culture tout court) autre. Le goût les aurait amenés à expérimenter un exotisme, qui était néanmoins contrôlé, car certaines conditions imposées par les normes locales faisaient en sorte que le déplacement vécu ne fût pas excessivement déstabilisant. Le résultat de ces négociations consistait d’un menu qui accostait les gastronomies marocaine et italienne (ou les procédures de l’une et de l’autre) dans certains plats décrits comme « fusion », qui satisfaisaient (ou non) les exigences des clients. Dans cet article, je vise à mettre en évidence les mécanismes de production discursive et matérielle de ces plats, ainsi comme les opinions des consommateurs. Pour ce faire, j’analyserai le matériel ethnographique collecté auprès du local en question en le comparant avec les pratiques observés dans d’autres restaurants milanais. En ce qui concerne les effets obtenus, j’appuierait mon analyse sur une plateforme de médias sociaux consacrée aux recensions d’endroits et locaux touristiques. La culture alimentaire sera étudiée dans ses aspects symboliques mais aussi matériels, en faisant également recours au matériel visuel récolté. [less ▲]

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See detailA note on weighted likelihood and Jeffreys modal estimation of proficiency levels in polytomous item response models
Magis, David ULg

in Psychometrika (in press)

Warm (1989) established the equivalence between the so-called Jeffreys modal and the weighted likelihood estimators of proficiency level with some dichotomous item response models. The purpose of this ... [more ▼]

Warm (1989) established the equivalence between the so-called Jeffreys modal and the weighted likelihood estimators of proficiency level with some dichotomous item response models. The purpose of this note is to extend this result to polytomous item response models. First, a general condition is derived to ensure the perfect equivalence between these two estimators. Second, it is shown that this condition is fulfilled by two broad classes of polytomous models including, among others, the partial credit, rating scale, graded response and nominal response models. [less ▲]

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See detailOne injection of platelet-rich plasma associated to a submaximal eccentric protocol to treat chronic jumper's knee
Kaux, Jean-François ULg; Croisier, Jean-Louis ULg; Bruyère, Olivier ULg et al

in The Journal of sports medicine and physical fitness (in press)

INTRODUCTION: Jumper's knee is a frequent chronic overuse syndrome of the upper part of the patellar tendon. Platelets contain lots of growth factors which could enhance the healing process of tendons ... [more ▼]

INTRODUCTION: Jumper's knee is a frequent chronic overuse syndrome of the upper part of the patellar tendon. Platelets contain lots of growth factors which could enhance the healing process of tendons. METHODS: Twenty patients with chronic upper patellar tendinopathy were enrolled. Assessments were made before infiltration of PRP, and 6 weeks and 3 months after the infiltration, using a 10--point Visual Analogic Scale, clinical examinations with a pressure algometer, algofunctional scores (IKDC and VISA--P), functional assessments (isokinetic and optojump evaluations) and imagery (ultrasounds and MRI). The PRP was obtained with an apheresis system (COM.TEC, Fresenius). Six millilitres of PRP were injected without local anaesthetic. One week after infiltration, patients started a standardised sub--maximal eccentric reeducation. RESULTS: Pain during daily activities significantly decreased with time. During functional evaluation, it decreased as well, but without significant functional improvement. No improvements in the imagery measurements were observed. Younger patients seemed to be more susceptible to have an improvement of pain by the PRP infiltration. CONCLUSION: This study demonstrates that a local infiltration of PRP associated with a submaximal eccentric protocol can improve symptoms of chronic jumper's knee in patients non--responsive to classical conservative treatments. [less ▲]

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See detailThe ideology of the British National Party
Jamin, Jérôme ULg

in Revue LISA : Littératures, Histoire des Idées, Images, Sociétés du Monde Anglophone = LISA e-Journal (in press)

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See detailLeopold August Warnkönig, een voorganger van François Laurent in de universiteiten van Luik en Gent
Gerkens, Jean-François ULg

in Fundamina : A Journal of Legal History (in press), 20(1), 336-348

Warnkönig has been a very important professor during the first decades of university teaching in Belgium (1817-1837). He has taught in all three universities of Belgium and was a brilliant scholar.

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See detailThe Childhood Executive Function Inventory (CHEXI): Confirmatory Factor Analyses and Cross-Cultural Clinical Validity in a Sample of 8- to 11-Year-Old Children
Catale, Corinne ULg; Meulemans, Thierry ULg; Thorell, Lisa B.

in Journal of Attention Disorders (in press)

The Childhood Executive Functioning Inventory (CHEXI) is a new rating instrument for executive functioning developed by Thorell and Nyberg (2008). Through exploratory factor analyses, this inventory has ... [more ▼]

The Childhood Executive Functioning Inventory (CHEXI) is a new rating instrument for executive functioning developed by Thorell and Nyberg (2008). Through exploratory factor analyses, this inventory has been shown to tap into working memory and inhibition-related behaviors in young children. In this study, we present the psychometric characteristics of the French adaptation of the CHEXI in 8- to 11-year-old children. In addition, we explore the cross-cultural validity of the CHEXI in discriminating between children with ADHD and normally developing children in two culturally different samples (Belgian and Swedish). Confirmatory factor analyses replicated the two-factor solution, referred to as inhibition and working memory, that was identified in the original study with Swedish children. Supplementary analyses indicated that both subscales have good psychometric properties. From a clinical point of view, the CHEXI was found to discriminate, with high sensitivity and specificity, between children with ADHD and normally developing controls in both cultural samples. Cross-cultural clinical implications are discussed. [less ▲]

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See detailCompte rendu de D. van Mal-Maeder, A. Burnier, L. Núñez (éds.): Jeux de voix. Énonciation, intertextualité et intentionnalité dans la littérature antique
Macedo, Gabriel ULg

in Antiquité Classique : Revue Interuniversitaire d'Etudes Classiques (in press)

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See detailVaccination guidelines in hematopoietic transplant patients : recommendations from the BHS Transplant Committee
Moors, I.; Callens, S.; BEGUIN, Yves ULg et al

in Belgian Journal of Hematology (in press)

Over the past years, hematopoietic stem cell transplantation (HSCT) is increasingly used as a consolidation therapy in several haematological diseases and solid tumours. In the post-transplantation period ... [more ▼]

Over the past years, hematopoietic stem cell transplantation (HSCT) is increasingly used as a consolidation therapy in several haematological diseases and solid tumours. In the post-transplantation period, the immunity of HSCT recipients is impaired due to toxicity of the pre-HSCT treatment (chemo- and/or radiotherapy) and the conditioning regimen with reset of the immune system and – in case of allogeneic stem cell transplantation – possible graft-versus-host-disease (GVHD) and use of immunosuppressive drugs. This leads to a considerably increased risk of infections, with higher morbidity and mortality in these patients. Therefore, prevention of infections, through antibiotic prophylaxis, life style adjustments, germfree nutrition and revaccination, is of major importance to improve outcomes. In this article we present the Belgian guidelines for vaccination after hematopoietic stem cell transplantation, based on available data in the literature and international guidelines, taking into account the availability of vaccines and - if applicable - their reimbursement in Belgium. We present a general vaccination schedule for post-HSCT patients, a proposition for pre-transplant vaccination and donor vaccination, and an overview of special indications such as travel vaccinations and vaccinations of close contacts and health care workers, with guidelines for titer follow up. [less ▲]

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See detailArrêts sur images – usages et pratiques du photogramme
Thonon, Jonathan ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)

Le photogramme est, au cinéma, la plus petite unité de prise de vue. Image fixe, unité élémentaire du film, le photogramme forme la cellule figée d’un mouvement qui se reconstitue sous l’effet d’un ... [more ▼]

Le photogramme est, au cinéma, la plus petite unité de prise de vue. Image fixe, unité élémentaire du film, le photogramme forme la cellule figée d’un mouvement qui se reconstitue sous l’effet d’un défilement réglé (24 photogrammes/seconde) par le dispositif technique du cinéma. Image paradoxale en ce qu’elle reste invisible au spectateur malgré sa force iconique, le photogramme trouve cependant, dans le flux qui le conduit insensiblement à la disparition, certaines zones de visibilité qui en révèlent le caractère à la fois fragile et intensif. Nous allons donc envisager certaines pratiques ou certains usages du photogramme cinématographique, tout en essayant de dégager, au départ de ces pratiques, les éléments d’une théorie du photogramme, que Roland Barthes et Sylvie Pierre appelaient déjà de leurs vœux. Des protos-photogrammes et de leur usage scientifique chez Muybridge et Marey, aux usages artistiques contemporains, en passant par des pratiques publicitaires, promotionnelles ou analytiques, nous allons voir que le photogramme reste un objet singulier. [less ▲]

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See detailMultiscale variability of amphipod assemblages in Posidonia oceanica meadows
Sturaro, Nicolas ULg; Lepoint, Gilles ULg; Vermeulen, Simon et al

in Journal of Sea Research (in press)

The study of spatial patterns is of ecological importance in order to understand the causes of the distribution and abundance of organisms, and it also provides valuable basis for management and ... [more ▼]

The study of spatial patterns is of ecological importance in order to understand the causes of the distribution and abundance of organisms, and it also provides valuable basis for management and conservation. Amphipod crustaceans are key organisms in seagrass ecosystems. However, little attention has been paid to the spatial scales at which amphipod assemblages may vary. We examined variability patterns of amphipod populations inhabiting Posidonia oceanica meadows, over spatial scales spanning four orders of magnitude (1 to 1000 metres) and for two consecutive years. This study reports the scales that contributed most to spatial variation of amphipod assemblages and explores the potential processes of the observed patterns, with particular emphasis on habitat features. The number of species, the diversity and the density of some species, exhibited high variation across years. Most species showed the highest spatial variation in density and biomass at small scales (~1 and 10 m). Based on density data, the structure of amphipod assemblages did not differ at any scales investigated. The patchiness that occurred at small scales may have been only weakly related to habitat features. Instead, we postulated that behavioural processes of amphipods were likely good explanatory factors. Although, the small scale spatial variability can be an important feature of amphipod assemblages in P. oceanica meadows, many patterns probably remained undetected as they may occur at scales smaller than those investigated. [less ▲]

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See detailUse of camera traps for wildlife studies: a review
Trolliet, Franck ULg; Vermeulen, Cédric ULg; Huynen, Marie-Claude ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (in press)

As human threats continue to impact natural habitats, there is an increasing need to regularly monitor the trends in large vertebrate populations. Conservation efforts must be directed appropriately, but ... [more ▼]

As human threats continue to impact natural habitats, there is an increasing need to regularly monitor the trends in large vertebrate populations. Conservation efforts must be directed appropriately, but field work necessary for data collection is often limited by time and availability of people. Camera traps are used as an efficient method to insure permanent sampling and to work in difficult to access areas. In the present study, we illustrate the way the use of camera traps developed: firstly with the need to monitor tiger (Panthera tigris (Linnaeus 1758)) populations and later as an instrument serving a diverse field of studies, such as animal behaviour and fauna-flora interaction. By looking at the material and technical aspects of various models of camera trap for implementation in different field studies in animal ecology, we highlight the need to choose appropriate camera trap models for the target species and to set up solid sampling protocols in order to successfully achieve study objectives. [less ▲]

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See detailEffect of bovine colostrum intake on growth, reproductive parameters and survival in red kids
Harouna, Abdou; Marichatou, Hamani; Beckers, Jean-François ULg et al

in Journal of Animal Physiology & Animal Nutrition (in press)

The aim of this study is to evaluate the efficacy of frozen Azawak colostrum supplementation on body weight (BW), average daily gain (ADG), reproductive parameters (mean age at first parturition ... [more ▼]

The aim of this study is to evaluate the efficacy of frozen Azawak colostrum supplementation on body weight (BW), average daily gain (ADG), reproductive parameters (mean age at first parturition, fertility, fecundity, prolificacy) and mortality rate among red kids. The study was conducted at the goat farm secondary centre of Maradi in Niger from September 2010 to September 2011. The control animals (n = 20) were left with their mother, while the treatment animals (n = 20) received in addition 50 ml/animal/day of bovine colostrum at birth and 15 ml/animal/day from d2 to d15. Weight was measured weekly from birth to d365. Mortalities were also recorded over the same period. For reproductive parameters, observations began at weaning (d197). Growth rate was higher (p < 0.001) in supplemented animal, and the treatment effects on ADG were observed up to 150 day after the end of supplementation. A similar long-lasting trend was also observed in relation to the mortality rate (25% for ColG vs. 55% for ConG; p = 0.05). The age at first kidding tended to be lower in the treated group (13.8 0.7 vs. 14.1 0.8 month; p < 0.1). In conclusion, mild bovine colostrum supplementation induces a long-lasting positive impact on growth rate and to a lower extent on reproduction parameters and survival rate. [less ▲]

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See detailCan Lignin Wastes Originating From Cellulosic Ethanol Biorefineries Act as Radical Scavenging Agents?
Vanderghem, Caroline ULg; Jacquet, Nicolas ULg; Richel, Aurore ULg

in Australian Journal of Chemistry (in press)

Lignin is a co-product from the biorefinery and paper industry. Its non-energetic valorization remains a field of extensive R&D developments. In this perspective, this study is undertaken to evaluate the ... [more ▼]

Lignin is a co-product from the biorefinery and paper industry. Its non-energetic valorization remains a field of extensive R&D developments. In this perspective, this study is undertaken to evaluate the radical scavenging ability of some herbaceous lignins. These lignins, extracted from Miscanthus (Miscanthus x giganteus) or Switchgrass (Panicum Virgatum L.), are selected as benchmarks for this study as a function of their chemical structure and average molecular weight. These technical lignins, side-products in the bioethanol production process, are found to display a moderate antioxidant activity as evaluated by the DPPH (1,1-diphenyl-2-picrylhydrazil) free radical scavenging test system. A correlation between the radical scavenging properties and the molecular features is proposed and discussed. Infrared spectroscopy is evaluated as a straightforward qualitative prediction tool for the radical scavenging capacity. [less ▲]

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See detailDe Jacques Antoine aux Eperonniers : l'édition littéraire en Belgique au passé et au présent (seconde partie)
Durand, Pascal ULg; Habrand, Tanguy ULg

in Textyles : Revue des Lettres Belges de Langue Française (in press)

Second volet d'un article en deux parties portant sur l'édition littéraire contemporaine en Belgique, autour de deux maisons importantes : les éditions Jacques Antoine et les éditions des Eperonniers. La ... [more ▼]

Second volet d'un article en deux parties portant sur l'édition littéraire contemporaine en Belgique, autour de deux maisons importantes : les éditions Jacques Antoine et les éditions des Eperonniers. La seconde partie de cette étude porte plus précisément sur la transition d'une maison à l'autre et sur la politique de la création contemporaine suivie par Lysiane d'Hayere aux Eperonniers. [less ▲]

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See detailHigh concentrations of Myeloperoxidase in the equine uterus as an indicator of endometritis
Parrilla Hernandez, Sonia ULg; Ponthier, Jérôme ULg; Franck, Thierry ULg et al

in Theriogenology (in press)

Intra-luminal fluid and excessive abnormal hyper-edema are regularly used for the diagnosis of endometritis in the mare, which is routinely confirmed by the presence of neutrophils on endometrial smears ... [more ▼]

Intra-luminal fluid and excessive abnormal hyper-edema are regularly used for the diagnosis of endometritis in the mare, which is routinely confirmed by the presence of neutrophils on endometrial smears. Studies show a relation between neutrophils and myeloperoxidase (MPO), an enzyme contained in and released by neutrophils during degranulation or after cell lysis. This enzyme has been found in many fluids and tissues and associated with different inflammatory pathologies in the horse. The aims of this study were to assess the presence and concentration of MPO in the equine uterus, and to investigate its relation with neutrophils, and other clinical signs of endometritis. Mares (n=51) were evaluated for presence of intra-luminal fluid and excessive endometrial edema before breeding, and a small volume lavage and cytology samples were obtained. From 69 cycles, supernatant of the uterine flushes was analysed with a specific equine MPO ELISA assay to measure MPO concentration. Cytology samples were used for the diagnosis of endometritis. MPO was present in the uterus of all estrus mares in highly variable concentrations. MPO concentrations were significantly (p<0.05) higher in samples with positive cytologies and in presence of intra-luminal fluid. Occasionally, some samples with negative cytologies showed high MPO concentration, but the opposite was never observed. Cycles presenting hyper-edema weren’t associated to high concentration of MPO, intra-luminal fluid or positive cytology making it a poor diagnostic tool of endometritis. [less ▲]

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See detailCost-effectiveness of vitamin D and calcium supplementation in the treatment of elderly women and men with osteoporosis.
Hiligsmann, Mickaël ULg; Ben Sedrine, Wafa; Bruyère, Olivier ULg et al

in European journal of public health (in press)

BACKGROUND: The supplementation with vitamin D and calcium has been recommended for elderly, specifically those with increased risk of fractures older than 65 years. This study aims to assess the cost ... [more ▼]

BACKGROUND: The supplementation with vitamin D and calcium has been recommended for elderly, specifically those with increased risk of fractures older than 65 years. This study aims to assess the cost-effectiveness of vitamin D and calcium supplementation in elderly women and men with osteoporosis and therefore to assess if this recommendation is justified in terms of cost-effectiveness. METHODS: A validated model for economic evaluations in osteoporosis was used to estimate the cost per quality-adjusted life-year (QALY) gained of vitamin D/calcium supplementation compared with no treatment. The model was populated with cost and epidemiological data from a Belgian health-care perspective. Analyses were conducted in women and men with a diagnosis of osteoporosis (i.e. bone mineral density T-score </=-2.5). A literature search was conducted to describe the efficacy of vitamin D and calcium in terms of fracture risk reduction. RESULTS: The cost per QALY gained of vitamin D/calcium supplementation was estimated at euro40 578 and euro23 477 in women and men aged 60 years, respectively. These values decreased to euro7912 and euro10 250 at the age of 70 years and vitamin D and calcium supplementation was cost-saving at the age of 80 years, meaning that treatment cost was less than the costs of treating osteoporotic fractures of the no-treatment group. CONCLUSION: This study suggests that vitamin D and calcium supplementation is cost-effective for women and men with osteoporosis aged over 60 years. From an economic perspective, vitamin D and calcium should therefore be administrated in these populations including those also taking other osteoporotic treatments. [less ▲]

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See detailInternet facilite-t-il chez les étudiants du supérieur un apprentissage de plus en plus autorégulé ?
Poumay, Marianne ULg

in Revue Internationale des Technologies en Pédagogie Universitaire (in press)

The article specifies the meaning of “self-regulated learning”, then illustrates, first in course then in a program, a few practices using Internet as a support for learning. It underlines in those ... [more ▼]

The article specifies the meaning of “self-regulated learning”, then illustrates, first in course then in a program, a few practices using Internet as a support for learning. It underlines in those practices the growing importance of self-regulated learning. It advocates for supporting, mentoring the students in their development of that self-regulation, often implicit and considered granted in the Internet based course environments. [less ▲]

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See detailLarval development sites of the main Culicoides species (Diptera: Ceratopogonidae) in northern Europe and distribution of coprophilic species larvae in Belgian pastures
Zimmer, Jean-Yves ULg; Brostaux, Yves ULg; Haubruge, Eric ULg et al

in Veterinary Parasitology (in press)

Some Culicoides species of biting midges (Diptera: Ceratopogonidae) are biological virus vectors worldwide and have indeed been associated with outbreaks of important epizoonoses in recent years, such as ... [more ▼]

Some Culicoides species of biting midges (Diptera: Ceratopogonidae) are biological virus vectors worldwide and have indeed been associated with outbreaks of important epizoonoses in recent years, such as bluetongue and Schmallenberg disease in northern Europe. These diseases, which affect domestic and wild ruminants, have caused considerable economic losses. Knowledge of substrates suitable for Culicoides larval development is important, particularly for the main vector temperate species. This study, realized during two years, aimed to highlight the larval development sites of these biting midge species in the immediate surroundings of ten Belgian cattle farms. Moreover, spatial distribution of the coprophilic Culicoides larvae (C. chiopterus and C. dewulfi) within pastures was studied with increasing distance from farms along linear transects (farm–pasture–woodland). A total of 4347 adult specimens belonging to 13 Culicoides species were obtained by incubation of 2131 soil samples belonging to 102 different substrates; 18 of these substrates were suitable for larval development. The Obsoletus complex (formed by two species) was observed in a wide range of substrates, including silage residues, components of a chicken coop, dung adhering to walls inside stables, leftover feed along the feed bunk, a compost pile of sugar beet residues, soil of a livestock trampling area, and decaying wood, while the following served as substrates for the other specimens: C. chiopterus, mainly cow dung; C. dewulfi, cow dung and molehill soil; C. circumscriptus, algae; C. festivipennis, algae and soil in stagnant water; C. nubeculosus, algae and silt specifically from the edge of a pond; C. punctatus, mainly wet soil between silage reserves; C. salinarius, algae; and C. stigma, algae and wet soil between silage reserves. We also recorded significantly higher densities of coprophilic larvae within pastures in cow dung located near forests, which is likely due to the localization of potential hosts; the presence of these larvae within cow dung is, however, uninfluenced by relative distance from farms. A better knowledge of the microhabitats of Culicoides biting midges and their spatial distribution may allow the development of targeted species-specific vector control strategies, and may help to prevent the creation of new larval development sites. [less ▲]

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See detailRepresentations of sensory experiences in the early phases of architectural design: there is more than meets the eye
Elsen, Catherine ULg; Heylighen, Ann

in Journal of Design Research (in press)

In response to questions about designers’ visual way of knowing and working, this article explores how sensory experience is conveyed during the early phases of architectural design. By processing 985 ... [more ▼]

In response to questions about designers’ visual way of knowing and working, this article explores how sensory experience is conveyed during the early phases of architectural design. By processing 985 graphic components issued from a three-month ethnographic observation inside an architecture firm, and proposing an original methodology for their analysis, we identify and analyse graphic expressions of sensory-related design intentions. Multi-sensory dimensions of experiencing an architectural artefact, and the way architects deal with users experiencing space differently, are topics also considered in this article. The resulting observations remind us not to mistake apparent lack of graphical clues with lack of sensibility when it comes to addressing sensory experience during architectural design. [less ▲]

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See detailComposantes métacognitives ; Définitions et outils d’évaluation
Frenkel, Stéphanie ULg

in Enfance : Psychologie, Pédagogie, Neuropsychiatrie, Sociologie (in press)

Many tools have been developed since the 1970s in order to assess metacognition and its first implementations. Over time, questionnaires, tests, interviews, observations, computer programmes, and other ... [more ▼]

Many tools have been developed since the 1970s in order to assess metacognition and its first implementations. Over time, questionnaires, tests, interviews, observations, computer programmes, and other methods have become more and more based on self-regulated learning theories. At the same time, for the last fifteen years or so, the number of students with learning difficulties linked to the way they learn seems to be increasing slowly but steadily. Therefore, it seems essential to enable these learners develop a more efficient learning behaviour. Similarly, we see that professional field workers are increasingly asking for efficient and adapted tools in this field. The purpose of this paper is twofold: it provides a review of the above-mentioned assessment tools, and it discusses them in order to contribute to the creation of new tools with a wider scope. Following an analysis of the abundant literature on the subject, two classifications were developed. Thirty-five tools were kept and categorised: first, according to a developmental perspective (preschool, primary school, secondary school and/or adult), second, according to the metacognitive component they assess (metacognitive knowledge, strategies and/or experiences). However, no existing tool covers the whole period of compulsory education. Moreover, in order to assess the learners’ metacognitive abilities fully, it is necessary to combine online and offline assessments in concrete situations. There are still some needs to be met in this regard. [less ▲]

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See detailOptimizing Perfectly Matched Layers in Discrete Contexts
Modave, Axel ULg; Delhez, Eric ULg; Geuzaine, Christophe ULg

in International Journal for Numerical Methods in Engineering (in press)

Perfectly Matched Layers (PMLs) are widely used for the numerical simulation of wave-like problems defined on large or infinite spatial domains. However, for both the time-dependent and the time-harmonic ... [more ▼]

Perfectly Matched Layers (PMLs) are widely used for the numerical simulation of wave-like problems defined on large or infinite spatial domains. However, for both the time-dependent and the time-harmonic cases, their performance critically depends on the so-called absorption function. This paper deals with the choice of this function when classical numerical methods are used (based on finite differences, finite volumes, continuous finite elements and discontinuous finite elements). After reviewing the properties of the PMLs at the continuous level, we analyse how they are altered by the different spatial discretizations. In the light of these results, different shapes of absorption function are optimized and compared by means of both one- and two-dimensional representative time-dependent cases. This study highlights the advantages of the so-called shifted hyperbolic function, which is efficient in all cases and does not require the tuning of a free parameter, by contrast with the widely used polynomial functions. [less ▲]

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See detailCT SCAN FEATURES OF PRESUMPTIVE HAEMORRHAGIC STROKE IN A DOG WITH CUSHING’S DISEASE
Liotta, Annalisa Pia ULg; Cavrenne, Romain; Peeters, Dominique ULg et al

in Case reports in Veterinary Medicine (in press)

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See detailDépister la fragilité, un bénéfice pour le patient et pour le soignant
RICOUR, Céline ULg; DESAINTHUBERT, Marie; GILLAIN, Sophie ULg et al

in Revue Médicale de Liège (in press)

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See detailFermentation profile of Saccharomyces cerevisiae and Candida tropicalis as starter cultures on barley malt medium
Alloue-Boraud, Mireille; N’Guessan, Kouadio; Djeni, Théodore et al

in Journal of Food Science & Technology (in press)

Saccharomyces cerevisiae C8-5 and Candida tropicalis F0-5 isolated from traditional sorghum beer were tested for kinetic parameters on barley malt extract, YPD (863 medium) and for alcohol production. The ... [more ▼]

Saccharomyces cerevisiae C8-5 and Candida tropicalis F0-5 isolated from traditional sorghum beer were tested for kinetic parameters on barley malt extract, YPD (863 medium) and for alcohol production. The results showed that C. tropicalis has the highest maximum growth rate and the lowest doubling time. Values were 0.22 h-1 and 0.32 h-1 for maximum growth rate, 3 h 09 min and 2 h 09 min for doubling time respectively on barley malt extract and YPD. On contrary, glucose consumption was the fastest with S. cerevisiae (-0.36 g/l/h and -0.722 g/l/h respectively on barley malt extract and YPD). When these two yeasts were used as starters in pure culture and co-culture at proportion of 1:1 and 2:1 (cell/cell) for barley malt extract fermentation, we noticed that maltose content increased first from 12.12 g/l to 13.62-16.46 g/l and then decreased. The highest increase was obtained with starter C. tropicalis + S. cerevisiae 2:1. On contrary, glucose content decreased throughout all the fermentation process. For all the starters used, the major part of the ethanol was produced at 16 h of fermentation. Values obtained in the final beers were 11.4, 11.6, 10.4 and 10.9 g/l for fermentation conducted with S. cerevisiae, C. tropicalis, C. tropicalis + S. cerevisiae 1:1 and C. tropicalis + S. cerevisiae 2:1. Cell viability measurement during the fermentation by using flow cytometry revealed that the lowest mean channel fluorescence for FL3 (yeast rate of death) was obtained with C. tropicalis + S. cerevisiae 2:1 after 48 h of fermentation. [less ▲]

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See detaillES CHUTES DE LA PERSONNE AGEE
GILLAIN, Sophie ULg; ELBOUZ, Leila ULg; Beaudart, Charlotte ULg et al

in Revue Médicale de Liège (in press)

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See detailA reference case for economic evaluations in osteoarthritis: An expert consensus article from the European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO).
Hiligsmann, Mickaël ULg; Cooper, Cyrus; Guillemin, Francis et al

in Seminars in arthritis and rheumatism (in press)

BACKGROUND: General recommendations for a reference case for economic studies in rheumatic diseases were published in 2002 in an initiative to improve the comparability of cost-effectiveness studies in ... [more ▼]

BACKGROUND: General recommendations for a reference case for economic studies in rheumatic diseases were published in 2002 in an initiative to improve the comparability of cost-effectiveness studies in the field. Since then, economic evaluations in osteoarthritis (OA) continue to show considerable heterogeneity in methodological approach. OBJECTIVES: To develop a reference case specific for economic studies in OA, including the standard optimal care, with which to judge new pharmacologic and non-pharmacologic interventions. METHODS: Four subgroups of an ESCEO expert working group on economic assessments (13 experts representing diverse aspects of clinical research and/or economic evaluations) were charged with producing lists of recommendations that would potentially improve the comparability of economic analyses in OA: outcome measures, comparators, costs and methodology. These proposals were discussed and refined during a face-to-face meeting in 2013. They are presented here in the format of the recommendations of the recently published Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement, so that an initiative on economic analysis methodology might be consolidated with an initiative on reporting standards. RESULTS: Overall, three distinct reference cases are proposed, one for each hand, knee and hip OA; with diagnostic variations in the first two, giving rise to different treatment options: interphalangeal or thumb-based disease for hand OA and the presence or absence of joint malalignment for knee OA. A set of management strategies is proposed, which should be further evaluated to help establish a consensus on the "standard optimal care" in each proposed reference case. The recommendations on outcome measures, cost itemisation and methodological approaches are also provided. CONCLUSIONS: The ESCEO group proposes a set of disease-specific recommendations on the conduct and reporting of economic evaluations in OA that could help the standardisation and comparability of studies that evaluate therapeutic strategies of OA in terms of costs and effectiveness. [less ▲]

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See detailcompte rendu de : Eleanor DICKEY, The Colloquia of the Hermeneumata Pseudodositheana. Volume I. Colloquia Monacensia-Einsidlensia, Leidense-Stephani, and Stephani
Rochette, Bruno ULg

in Gnomon : Kritische Zeitschrift für die Gesamte Klassische Altertumswissenschaft (in press)

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See detailHydroxymethylfurfural: a possible emergent cause of honey bee mortality?
Zirbes, Lara ULg; Nguyen, Bach Kim ULg; de Graaf, DC et al

in Journal of Agricultural and Food Chemistry (in press)

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See detailPLACE DE LA GERIATRIE DANS LA FILIERE DES SOINS
PETERMANS, Jean ULg

in Revue Médicale de Liège (in press)

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See detailPLACE DE LA GERIATRIE DANS LA FILIERE DES SOINS
PETERMANS, Jean ULg

in Revue Médicale de Liège (in press)

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See detailGoal-directed treatment of osteoporosis in Europe.
Kanis, J. A.; McCloskey, E.; Branco, J. et al

in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA (in press)

Despite the proven predictive ability of bone mineral density, Fracture Risk Assessment Tool (FRAX(R)), bone turnover markers, and fracture for osteoporotic fracture, their use as targets for treatment of ... [more ▼]

Despite the proven predictive ability of bone mineral density, Fracture Risk Assessment Tool (FRAX(R)), bone turnover markers, and fracture for osteoporotic fracture, their use as targets for treatment of osteoporosis is limited. INTRODUCTION: Treat-to-target is a strategy applied in several fields of medicine and has recently become an area of interest in the management of osteoporosis. Its role in this setting remains controversial. This article was prepared following a European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO) working group meeting convened under the auspices of the International Osteoporosis Foundation (IOF) to discuss the feasibility of applying such a strategy in osteoporosis in Europe. METHODS: Potential targets range from the absence of an incident fracture to fixed levels of bone mineral density (BMD), a desired FRAX(R) score, a specified level of bone turnover markers or indeed changes in any one or a combination of these parameters. RESULTS: Despite the proven predictive ability of all of these variables for fracture (particularly BMD and FRAX), their use as targets remains limited due to low sensitivity, the influence of confounders and current lack of evidence that targets can be consistently reached. CONCLUSION: ESCEO considers that it is not currently feasible to apply a treat-to-target strategy in osteoporosis, though it did identify a need to continue to improve the targeting of treatment to those at higher risk (target-to-treat strategy) and a number of issues for the research agenda. These include international consensus on intervention thresholds and definition of treatment failure, further exploration of the relationship between fracture and BMD, and FRAX and treatment efficacy and investigation of the potential of short-term targets to improve adherence. [less ▲]

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See detailSpore assemblages from Upper Ordovician and Lowermost Silurian sediments recovered from the Qusaiba-1 shallow core hole, Qasim region, central Saudi Arabia
Wellman, Charles H.; Steemans, Philippe ULg; Miller, M.A.

in Review of Palaeobotany and Palynology (in press), ?

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See detailDose-dependent effect of experimental Schmallenberg virus infection in sheep
Poskin, A; Martinelle, Ludovic ULg; Mostin, L et al

in Veterinary Journal (in press)

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See detailDiagnostic des viroses et séquençage haut-débit : vers un changement de paradigme ?
Massart, Sébastien ULg; Olmos, Antonio; Jijakli, Haissam ULg et al

in Virologie (in press), 5

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See detailA.P.M.H. Lardinois, J.H Blok et M.G.M. Van der Poel, Sacred Words: Orality, Literacy and Religion, Leiden-Boston, Brill, 2011
Delli Pizzi, Aurian ULg

in Antiquité Classique : Revue Interuniversitaire d'Etudes Classiques (in press)

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See detailAboveground biomass mapping of African forest mosaics using canopy texture analysis: towards a regional approach.
Bastin, Jean-François ULg; Barbier, Nicolas; Couteron, Pierre et al

in Ecological Applications (in press)

In the context of the reduction of greenhouse gas emissions caused by deforestation and forest degradation (the REDD+ program), optical very high resolution (VHR) satellite images provide an opportunity ... [more ▼]

In the context of the reduction of greenhouse gas emissions caused by deforestation and forest degradation (the REDD+ program), optical very high resolution (VHR) satellite images provide an opportunity to characterize forest canopy structure and to quantify aboveground biomass (AGB) at less expense than methods based on airborne remote sensing data. Among the methods for processing these VHR images, Fourier textural ordination (FOTO) presents a good potential to detect forest canopy structural heterogeneity and therefore to predict AGB variations. Notably, the method does not saturate at intermediate AGB values as do pixelwise processing of available space borne optical and radar signals. However, a regional scale application requires to overcome two difficulties: (i) instrumental effects due to variations in sun-scene-sensor geometry or sensor-specific responses that preclude the use of wide arrays of images acquired under heterogeneous conditions and (ii) forest structural diversity including monodominant or open canopy forests, which are of particular importance in Central Africa. In this study, we demonstrate the feasibility of a rigorous regional study of canopy texture by harmonizing FOTO indices of images acquired from two different sensors (Geoeye-1 and QuickBird-2) and different sun-scene-sensor geometries and by calibrating a piecewise biomass inversion model using 26 inventory plots (1 ha) sampled across very heterogeneous forest types. A good agreement was found between observed and predicted AGB (RSE=15%; R²=0.85; p-value<0.001) across a wide range of AGB levels from 26 Mg/ha to 460 Mg/ha, and was confirmed by cross validation. A high-resolution biomass map (100 m pixels) was produced for a 400 km² area, and predictions obtained from both imagery sources were consistent with each other (r=0.86; slope=1.03; intercept=12.01 Mg/ha). These results highlight the horizontal structure of forest canopy as a powerful descriptor of the entire forest stand structure and heterogeneity. In particular, we show that quantitative metrics resulting from such textural analysis offer new opportunities to characterize the spatial and temporal variation of the structure of dense forests and may complement the toolbox used by tropical forest ecologists, managers or REDD+ national monitoring, reporting and verification bodies. [less ▲]

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See detailThiamine triphosphate: a ubiquitous molecule in search of a physiological role
Bettendorff, Lucien ULg; Wins, Pierre

in Metabolic Brain Disease (in press)

Thiamine triphosphate (ThTP) was discovered over 60 years ago and it was long thought to be a specifically neuroactive compound. Its presence in most cell types, from bacteria to mammals, would suggest a ... [more ▼]

Thiamine triphosphate (ThTP) was discovered over 60 years ago and it was long thought to be a specifically neuroactive compound. Its presence in most cell types, from bacteria to mammals, would suggest a more general role but this remains undefined. In contrast to thiamine diphosphate (ThDP), ThTP is not a coenzyme. In E. coli cells, ThTP is transiently produced in response to amino acid starvation, while in mammalian cells, it is constitutively produced at a low rate. Though it was long thought that ThTP was synthesized by a ThDP:ATP phosphotransferase, more recent studies indicate that it can be synthesized by two different enzymes: (1) adenylate kinase 1 in the cytosol and (2) FoF1-ATP synthase in brain mitochondria. Both mechanisms are conserved from bacteria to mammals. Thus ThTP synthesis does not seem to require a specific enzyme. In contrast, its hydrolysis is catalyzed, at least in mammalian tissues, by a very specific cytosolic thiamine triphosphatase (ThTPase), controlling the steady-state cellular concentration of ThTP. In some tissues where adenylate kinase activity is high and ThTPase is absent, ThTP accumulates, reaching ≥ 70% of total thiamine, with no obvious physiological consequences. In some animal tissues, ThTP was able to phosphorylate proteins, and activate a high-conductance anion channel in vitro. These observations raise the possibility that ThTP is part of a still uncharacterized cellular signaling pathway. On the other hand, its synthesis by a chemiosmotic mechanism in mitochondria and respiring bacteria might suggest a role in cellular energetics. [less ▲]

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See detailLes arabismes dans le TLF : tentative de classement historique
Baiwir, Esther ULg

in Revue de Linguistique Romane (in press), 78

Parmi les nombreux mots traditionnellement étiquetés comme «arabismes» figurent des cas relevant de classes diverses. Nous jetons ici un regard diachronique et global sur cette classe de lexèmes ... [more ▼]

Parmi les nombreux mots traditionnellement étiquetés comme «arabismes» figurent des cas relevant de classes diverses. Nous jetons ici un regard diachronique et global sur cette classe de lexèmes particuliers, parmi lesquels nous distinguons les emprunts dits directs, émanant de contacts récurrents et prolongés entre populations arabophones et populations francophones, et les emprunts dits indirects, qu'en toute rigueur nous devrions exclure de notre étude en vertu de la défiance légitime envers l'etimologia remota. Nous tentons cependant de montrer que cette méfiance mérite d'être nuancée à l'aune des conclusions que cette pratique lexicographique permet de tirer sur les mouvements socio-historiques qu'elle illustre. En effet, de l'examen des itinéraires et des époques d'emprunt se dégage l'histoire des relations entre monde arabophone et monde roman. [less ▲]

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See detailSome misunderstood or unknown tricks (X) (LaTeX)
Merciadri, Luca ULg

in TUGboat (in press)

This is the 10th edition of my TUGboat `Tips & Tricks.' This time, we shall first see how to write `dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display ... [more ▼]

This is the 10th edition of my TUGboat `Tips & Tricks.' This time, we shall first see how to write `dancing text,' roman numerals, how to draw under and over braces on same elements, and how to display aligned (in)equations systems. We will then end by discussing on BibLaTeX and Biber, which constitute a promising alternative to BibTeX. [less ▲]

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See detailUne approche basée objet combinée avec les classifieurs avancés (SVM, RF, Extra Trees) pour la détection des changements du bâti
El Mansouri, Loubna ULg

in Rig (in press)

Cet article expose le développement d’une méthodologie automatique pour la détection des changements du bâti en vue d'une mise à jour semi automatique des cartes urbaines. L'approche est basée sur la ... [more ▼]

Cet article expose le développement d’une méthodologie automatique pour la détection des changements du bâti en vue d'une mise à jour semi automatique des cartes urbaines. L'approche est basée sur la comparaison entre une carte existante et une image à très haute résolution spatiale (THRS) récente. Elle s'enchaine sur 4 étapes. D'abord l'image est segmentée pour produire des primitives. Ces dernières sont caractérisées par 4 catégories d'attributs. Des classifieurs avancés par apprentissage supervisé (CAAS) ont été utilisés dans l'étape de la classification. Le paramétrage optimal de ces classifieurs est obtenu automatiquement par validation croisée en se référant au meilleur taux d'erreur. La prédiction finale des objets est déduite par un combineur de multiples classifieurs (CMC) conçu à partir des 3 meilleurs CAAS. Enfin, une étape de détection des changements permet d'identifier les primitives qui représentent les changements du bâti. Les données utilisées concernent la ville de Rabat (Maroc). Une image QuickBird a été utilisée avec un plan existant à l'échelle 1:10,000. Indépendamment de la qualité de la forme des bâtiments détectés, la méthode offre des meilleurs taux en exhaustivité (91.7%) et en exactitude (81.5%). [less ▲]

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See detailThe strength of multi-row models
Louveaux, Quentin ULg; Poirrier, Laurent; Salvagnin, Domenico

in Mathematical Programming Computation (in press)

We develop a method for computing facet-defining valid inequalities for any mixed-integer set PJ. Our practical implementation does not return only facet- defining inequalities, but it is able to find a ... [more ▼]

We develop a method for computing facet-defining valid inequalities for any mixed-integer set PJ. Our practical implementation does not return only facet- defining inequalities, but it is able to find a separating cut whenever one exists. The separator is not comparable in speed with the specific cutting-plane generators used in branch-and-cut solvers, but it is general-purpose. We can thus use it to compute cuts derived from any reasonably small relaxation PJ of a general mixed- integer problem, even when there exists no specific implementation for computing cuts with PJ. Exploiting this, we evaluate, from a computational perspective, the usefulness of cuts derived from several types of multi-row relaxations. In particular, we present results with four different strengthenings of the two-row intersection cut model, and multi-row models with up to fifteen rows. We conclude that only fully-strengthened two-row cuts seem to offer a significant advantage over two-row intersection cuts. Our results also indicate that the improvement obtained by going from models with very few rows to models with up to fifteen rows may not be worth the increased computing cost. [less ▲]

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See detailUnified method to integrate and blend several, potentially related, sources of information for genetic evaluation
Vandenplas, Jérémie ULg; Colinet, Frédéric ULg; Gengler, Nicolas ULg

in Genetics, Selection, Evolution (in press)

Background A condition to predict unbiased estimated breeding values by best linear unbiased prediction is to use simultaneously all available data. However, this condition is not often fully met. For ... [more ▼]

Background A condition to predict unbiased estimated breeding values by best linear unbiased prediction is to use simultaneously all available data. However, this condition is not often fully met. For example, in dairy cattle, internal (i.e. local) populations lead to evaluations based only on internal records while widely used foreign sires have been selected using internally unavailable external records. In such cases, internal genetic evaluations may be less accurate and biased. Because external records are unavailable, methods were developed to combine external information that summarizes these records, i.e. external estimated breeding values and associated reliabilities, with internal records to improve accuracy of internal genetic evaluations. Two issues of these methods concern double-counting of contributions due to relationships and due to records. These issues could be worse if external information came from several evaluations, at least partially based on the same records, and combined into a single internal evaluation. Based on a Bayesian approach, the aim of this research was to develop a unified method to integrate and blend simultaneously several sources of information into an internal genetic evaluation by avoiding double-counting of contributions due to relationships and due to records. Results This research resulted in equations that integrate and blend simultaneously several sources of information and avoid double-counting of contributions due to relationships and due to records. The performance of the developed equations was evaluated using simulated and real datasets. The results showed that the developed equations integrated and blended several sources of information well into a genetic evaluation. The developed equations also avoided double-counting of contributions due to relationships and due to records. Furthermore, because all available external sources of information were correctly propagated, relatives of external animals benefited from the integrated information and, therefore, more reliable estimated breeding values were obtained. Conclusions The proposed unified method integrated and blended several sources of information well into a genetic evaluation by avoiding double-counting of contributions due to relationships and due to records. The unified method can also be extended to other types of situations such as single-step genomic or multi-trait evaluations, combining information across different traits. [less ▲]

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See detailVirtual reality as a complementary therapy to sexual addiction treatment
Cismaru Inescu, Adina; Andrianne, Robert ULg; Triffaux, Jean-Marc ULg

in International Journal of Advanced Computer Science (in press), 3(7), 1-5

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See detailKepler detection of a new extreme planetary system orbiting the subdwarf-B pulsator KIC 10001893
Silvotti, R.; Charpinet, S.; Green, E.M. et al

in Astronomy and Astrophysics (in press)

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See detailRestorative detention or ‘work on self’? Two accounts of a Belgian prison policy
Dubois, Christophe ULg; Vrancken, Didier ULg

in Ethnography (in press)

Besides being known for population overcrowding, prison staff strikes, and prisoner suicides or escapes, which are frequently reported by the press, prison might also be a place for rare innovative ... [more ▼]

Besides being known for population overcrowding, prison staff strikes, and prisoner suicides or escapes, which are frequently reported by the press, prison might also be a place for rare innovative projects. One such project can be seen in a penitentiary policy initiated in Belgium in 2000 aimed at re-shaping the culture of detention towards a culture of ‘restorative justice’. What can be said of this attempt at introducing the concepts of victim, restoration, responsibilization, sensitizing and awareness within prison walls? The present article proposes an illustrative and interpretive account of this prison policy. Rather than restoring the broken victim-offender relationship, its implementation has something to do with detainees working on their ‘self’. [less ▲]

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See detailEstimated daily intake and cumulative risk assessment of phthalate diesters in a Belgian general population
Dewalque, Lucas ULg; Charlier, Corinne ULg; PIRARD, Catherine ULg

in Toxicology Letters (in press)

The daily intakes (DI) were estimated in a Belgian general population for 5 phthalates, namely diethyl phthalate (DEP), di-n-butyl phthalate (DnBP), di-iso-butyl phthalate (DiBP), butylbenzyl phthalate ... [more ▼]

The daily intakes (DI) were estimated in a Belgian general population for 5 phthalates, namely diethyl phthalate (DEP), di-n-butyl phthalate (DnBP), di-iso-butyl phthalate (DiBP), butylbenzyl phthalate (BBzP) and di-2-ethylhexyl phthalate (DEHP), based on the urinary measurements of their corresponding metabolites. DI values ranged between <LOD and 59.65 μg/kg bw/day depending on the congener, and were globally higher for children than adults. They were compared to acceptable levels of exposure (tolerable daily intakes) to evaluate the hazard quotients (HQ), which highlight an intake above the dose considered as safe for values greater than 1. If very few of our Belgian participants exceeded this threshold for phthalates considered individually, 6.2% of the adults and 25% of the children showed an excessive hazard index (HI) which took into account the cumulative risk of adverse anti-androgenic effects. These results are of concern since these HI were based on only 3 phthalates (DEHP, DiBP and DnBP), and showed a median of 0.55 and 0.29 for children and adults respectively. The comparison with previously determined dietary intakes demonstrated that for DEHP, food intake was nearly the only route of exposure while other pathways occurred mainly for the other studied phthalates. [less ▲]

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See detailSome misunderstood or unknown tricks (XI) (LaTeX) and encoding issues (II)
Merciadri, Luca ULg

in TUGboat (in press)

Three subjects will be detailed: 1. Using LaTeX syntax as an unambiguous way to communicate, 2. Writing a bold \ell, 3. Fonts' encodings.

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See detailError analysis of generalized-alpha Lie group time integration methods for constrained mechanical systems
Arnold, Martin; Bruls, Olivier ULg; Cardona, Alberto

in Numerische Mathematik (in press)

Generalized-alpha methods are very popular in structural dynamics. They are methods of Newmark type and combine favourable stability properties with second order convergence for unconstrained second order ... [more ▼]

Generalized-alpha methods are very popular in structural dynamics. They are methods of Newmark type and combine favourable stability properties with second order convergence for unconstrained second order systems in linear spaces. Recently, they were extended to constrained systems in flexible multibody dynamics that have a configuration space with Lie group structure. In the present paper, the convergence of these Lie group methods is analysed by a coupled one-step error recursion for differential and algebraic solution components. It is shown that spurious oscillations in the transient phase result from order reduction that may be avoided by a perturbation of starting values or by index reduction. Numerical tests for a benchmark problem from the literature illustrate the results of the theoretical investigations. [less ▲]

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See detailConcentration, Activity and Biochemical Characterization of Myeloperoxidase in Fresh and Post-thaw equine semen and their Implication on Freezability
Ponthier, Jérôme ULg; Franck, Thierry ULg; Parrilla Hernandez, Sonia ULg et al

in Reproduction in Domestic Animals (in press)

Myeloperoxidase (MPO) is a pro-oxidant enzyme associated with decreased motility in thawed equine semen. This study aimed to describe MPO concentration, activity and subunits in raw and thawed semen and ... [more ▼]

Myeloperoxidase (MPO) is a pro-oxidant enzyme associated with decreased motility in thawed equine semen. This study aimed to describe MPO concentration, activity and subunits in raw and thawed semen and to correlate these data with motilities in raw and thawed semen. Semen samples from five stallions were collected four times. Motilities were assessed in raw and thawed semen. MPO assays were performed in raw seminal plasma, raw sperm-rich pellet and thawed semen. Total and active MPO concentrations were, respectively, assayed by enzyme-linked immunosorbent assay and specific immunological extraction followed by enzymatic detection. MPO subunits present in semen were characterized by Western 3 blot. Purified active MPO was added in PBS and freezing extender to control its activity during freezing procedure. Differences between medians were determined using Kruskal– Wallis test, and correlations were determined using Spearman’s test for nonparametric data. Active MPO concentration was low in seminal plasma and thawed semen, but high in pellet (p = 0.0058), as the opposite relation was observed for total MPO concentration (p < 0.0001). In seminal plasma and post- thaw semen, inactive 86-kDa MPO precursor was mainly observed. Purified MPO activity was decreased in the extender (p = 0.0286). MPO activity in pellet was highly correlated with thawed progressive motility (r = 􏰑0.5576, p = 0.0086). Inac- tive MPO precursor and unknown low molecular weight inactive MPO precursor subunits explain low MPO activity in semen. Major MPO activity was observed in pellet, and post- thaw loss of activity is partially explained by MPO inactiva- tion in extender. Thawed semen motility was negatively correlated with MPO activity in pellet, becoming a potential freezability predictor. [less ▲]

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See detailInteraction between dietary protein content and the source of carbohydrates along the gastrointestinal tract of weaned piglets.
Pieper, Robert; Boudry, Christelle ULg; Bindelle, Jérôme ULg et al

in Archives of Animal Nutrition (in press)

Although fermentable carbohydrates (CHO) can reduce metabolites derived from dietary protein fermentation in the intestine of pigs, the interaction between site of fermentation and substrate availability ... [more ▼]

Although fermentable carbohydrates (CHO) can reduce metabolites derived from dietary protein fermentation in the intestine of pigs, the interaction between site of fermentation and substrate availability along the gut is still unclear. The current study aimed at determining the impact of two different sources of carbohydrates in diets with low or very high protein content on microbial metabolite profiles along the gastrointestinal tract of piglets. Thirty-six piglets (n = 6 per group) were fed diets high (26%, HP) or low (18%, LP) in dietary protein and with or without two different sources of carbohydrates (12% sugar beet pulp, SBP, or 8% lignocellulose, LNC) in a 2 × 3 factorial design. After 3 weeks, contents from stomach, jejunum, ileum, caecum, proximal and distal colon were taken and analysed for major bacterial metabolites (D-lactate, L-lactate, short chain fatty acids, ammonia, amines, phenols and indols). Results indicate considerable fermentation of CHO and protein already in the stomach. HP diets increased the formation of ammonia, amines, phenolic and indolic compounds throughout the different parts of the intestine with most pronounced effects in the distal colon. Dietary SBP inclusion in LP diets favoured the formation of cadaverine in the proximal parts of the intestine. SBP mainly increased CHO-derived metabolites such as SCFA and lactate and decreased protein-derived metabolites in the large intestine. Based on metabolite profiles, LNC was partly fermented in the distal large intestine and reduced mainly phenols, indols and cadaverine, but not ammonia. Multivariate analysis confirmed more diet-specific metabolite patterns in the stomach, whereas the CHO addition was the main determinant in the caecum and proximal colon. The protein level mainly influenced the metabolite patterns in the distal colon. The results confirm the importance of CHO source to influence the formation of metabolites derived from protein fermentation along the intestinal tract of the pig. [less ▲]

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See detailSome misunderstood or unknown tricks (XIII) (LaTeX)
Merciadri, Luca ULg

in TUGboat (in press)

We will here again consider many tips and tricks. This time, they will mostly come from Glad Deschrijver, TeX Tricks, 2011. (http://users.ugent.be/~gdschrij/LaTeX/textricks.html.) Tricks: vertically ... [more ▼]

We will here again consider many tips and tricks. This time, they will mostly come from Glad Deschrijver, TeX Tricks, 2011. (http://users.ugent.be/~gdschrij/LaTeX/textricks.html.) Tricks: vertically aligned itemize environments, allowing linebreaks after comma in math mode, writing under and over elements, and using stacks, footnotes with a new number at each section, footnotes in tabular, splitting algorithm environments on multiple pages, let " produce opening/closing quotation marks, indenting some text but not the first line, using diagonal dots positioned according to the opposite diagonal, using a centered verbatim environment, drawing a table with dashed lines, shaded cells and arrows pointing at a row and a column, correct spacing around square brackets (used for sets) in math mode. [less ▲]

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See detailConditioning materials with biomacromolecules: composition of the adlayer and influence on cleanability
Toure, Yetioman ULg; Genet, J. Michel; Dupont-Gillain, C. Christine et al

in Journal of Colloid and Interface Science (in press)

The influence of substrate hydrophobicity and biomacromolecules (dextran, bovine serum albumin - BSA) adsorption on the cleanability of surfaces soiled by spraying aqueous suspensions of quartz particles ... [more ▼]

The influence of substrate hydrophobicity and biomacromolecules (dextran, bovine serum albumin - BSA) adsorption on the cleanability of surfaces soiled by spraying aqueous suspensions of quartz particles (10 to 30 µm size), then dried, was investigated using glass and polystyrene as substrates. The cleanability was evaluated using radial flow cell (RFC). The surface composition was determined by X-ray photoelectron spectroscopy (XPS). The interpretation of XPS data allowed the complexity due to the ubiquitous presence of organic contaminants to be coped with, and the surface composition to be expressed in terms of both the amount of adlayer and the mass concentration of adlayer constituents. When soiled with a suspension of particles in water, glass was much less cleanable than polystyrene, which was attributed to its much lower water contact angle, in agreement with previous observations on starch soil. Dextran was easily desorbed and did not affect the cleanability. The presence of BSA at the interface strongly improved the cleanability of glass while the contact angle did not change appreciably. In contrast, soiling polystyrene with quartz particles suspended in a BSA solution instead of water did not change markedly the cleanability, while the contact angle was much lower and the aggregates of soiling particles were more flat. These observations are explained by the major role of capillary forces developed upon drying, which influence the closeness of the contact between the soiling particles and the substrate and, thereby, the adherence of particles. The capillary forces are proportional to the liquid surface tension and depend in a more complex way on contact angles of the particles and of the substrate. The dependence of cleanability on capillary forces, and in particular on the liquid surface tension, is predominant as compared with its dependence on the size and shape of the soiling aggregates, which influence the efficiency of shear forces exerted by the flowing water upon cleaning. [less ▲]

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See detailOn the asymptotic standard error of a class of robust estimators of ability in dichotomous item response models
Magis, David ULg

in British Journal of Mathematical & Statistical Psychology (in press)

In item response theory, the classical estimators of ability are highly sensitive to response disturbances and can return strongly biased estimates of the true underlying ability level. Robust methods ... [more ▼]

In item response theory, the classical estimators of ability are highly sensitive to response disturbances and can return strongly biased estimates of the true underlying ability level. Robust methods were introduced to lessen the impact of such aberrant responses onto the estimation process. The computation of asymptotic (i.e., large sample) standard errors (ASE) for these robust estimators, however, has not been fully considered yet. This paper focuses on a broad class of robust ability estimators, defined by an appropriate selection of the weight function and the residual measure, for which the ASE is derived from the theory of estimating equations. The maximum likelihood (ML) and the robust estimators, together with their estimated ASE, are then compared through a simulation study. It is concluded that both the estimators and their ASE perform similarly in absence of response disturbances, while the robust estimator and its estimated ASE are less biased and outperform their ML counterparts in presence of response disturbances with large impact on the item response process. [less ▲]

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See detailEvaluation of circulating irisin levels in healthy young individuals after a single 100,000 IU vitamin D dose.
CAVALIER, Etienne ULg; Mismetti, Valentine; Souberbielle, Jean-Claude

in Annales d'Endocrinologie (in press)

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See detailL’acte incendiaire, son sujet et sa signification : propositions à partir du Saint Genet de Jean-Paul Sartre
Englebert, Jérôme ULg

in Annales Médico-Psychologiques (in press)

Objectives In this paper we studied fire setters with the hermeneutics’ method from the philosophy of Jean-Paul Sartre. In the psychobiography of Jean Genet, the philosopher raises issues of the ... [more ▼]

Objectives In this paper we studied fire setters with the hermeneutics’ method from the philosophy of Jean-Paul Sartre. In the psychobiography of Jean Genet, the philosopher raises issues of the infractional acting and its social meaning. Methods After recalling the basic notions of international literature about fire setters (including confusion with pyromania, diagnostic problems proposed by the DSM IV and the concept of "communicative arson"), we propose phenomenological and existential clues to discuss the act and its meaning. It is the unlawful act that is analysed and more specifically the arson. We propose different analysis than the psychic causality which is inspired by psychoanalysis. The criminogenesis gives way to a questioning of identity, about the place of fire in the subject’s history and within its relationships to others. As proposed by Sartre, the paradigm of this research is to consider the meaning "as the return of the future in the present". The second field of this study is an analysis of three clinical cases. These cases are the result of a forensic practice. The method is focused on the analysis of a narrative and autobiographical production. By this way we studied the temporal process of these three arsonists. Results A comparative reading of the psychobiography of Jean Genet written by Sartre and of the situation of arsonists gives accurate information. The "criminogenesis" gives way to a questioning of identity. In this way we discuss the meaning of fire in the subject's history and within its relationship to others. We highlight the inscription of the act in the social and constitutive process of the individual. From the clinical material, the author demonstrates a link between arson and construction of identity. Identity is considered as a dialectic between “ipse” and “idem”, as suggested by Ricœur. We can therefore consider the real sense that the arson has from the perspective of the actor but also from the viewpoint of the society and these conceptions may be similar or different. In clinical practice, we recommend to pay special attention to how the fire is part of the biography of the patient. Conclusions The fascination for fire is a source of meaning which can be radically different depending on whether we consider the external interpreter (the world or the clinician) or the author of the action. The basic principles of hermeneutics, as described by Gadamer and Ricœur, are to demonstrate that the understanding and the interpretation are not only the methods used in the human sciences but are also part of the fundamental processes inherent in human nature. Hermeneutics in general is the opposite of a doctrine of truth. It rather seeks to show arbitrarily how the interpretation and the search for meaning are paradigmatic of the human experience. [less ▲]

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See detailCompte rendu de l'ouvrage de Frédéric MARCHESANI, Sur les traces des anciens "pays" de Wallonie
George, Philippe ULg

in Trésor de Liège. Bulletin trimestriel (in press)

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See detailInstitutional Investors, Information Asymmetry, Stock Market Liquidity
Sougné, Danielle ULg; Aymen, Ajina; Faten, Lakhal

in International Journal of Managerial Finance (in press), 11

Purpose. The purpose of this study is to examine the effect of institutional investors ownership and activism on information asymmetry and stock market liquidity in France. Design/methodology/approach ... [more ▼]

Purpose. The purpose of this study is to examine the effect of institutional investors ownership and activism on information asymmetry and stock market liquidity in France. Design/methodology/approach. Our sample includes 162 French-listed firms over a period ranging from 2007 to 2009. Our methodology relies on linear regressions using the method of ordinary least square(OLS). Befor examining the interaction between liquidity and institutional investors, we check for the existence of the endogeneity problem by applying the Durbin-Wu_Hausman test of Davidson and MacKinnon (1993). The results of the endogeneity test show that institutional investor ownership and stock liquidity are endogenous. A simultaneous equation model using the second least square method is then tested to address this problem. Findings The findings show that the proportion of institutional investors has a positive and significant effect on stock-market liquidity, which confirms the signal theory and trading hypothesis. These investors perform high trading activity which favourably affect market liquidity. The results suggests that pension funds manage huge assets decreasing transaction costs and improving liquidity. They display a positive signal to the market about more transparency and a low level of information asymmetry.These results highlight the institutional investors'role in defining the level of liquidity of assets on the French market. Our findings also stress the importance of developing institutional investors'demand for the Paris market in order to better assess firms'values, protect minority ownership and improve market liquidity. Originality/Value In the French institutional setting, institutional investors act as a control device since minority shareholder interests are less protected than in Anglo-American counterparts. This result highlights the significant rôle of institional investors in corporate governance structures and a finacila markets. Their prsence is a guarantee for minority interest protection and for improving market liquidity. [less ▲]

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