References of "Scientific congresses and symposiums"
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See detailTh17 cells in melanoma microenvironment
Weatherspoon, Alodie ULg; Multon, Sylvie ULg; Defaweux, Valérie ULg et al

Poster (2014, November)

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See detailEcomorfologia y evolucion del sistema locomotor de la familia Pomacentridae
Aguilar-Medrano, Rosalia; Frederich, Bruno ULg; Barber, Paul

Conference (2014, November)

Due their productivity, structural diversity, and potential to promote ecological, functional and morphological evolution, coral reefs have the highest species richness of fishes. As swimming is the ... [more ▼]

Due their productivity, structural diversity, and potential to promote ecological, functional and morphological evolution, coral reefs have the highest species richness of fishes. As swimming is the primary form of locomotion and interaction their aquatic environment, small morphological variations can have profound implications on the fitness of fishes. The damselfish family, Pomacentridae, has inhabited coral reef ecosystems for more than 50 million years. As such, habitat preferences and behavior could significantly contribute to the evolution of the morphology of damselfish through the impacts of shape on locomotion. To test this hypothesis, we employed comparative morphometric analyses of fish shape and ecology. While body elongation represented the primary source of variation in locomotor system shape, results also showed a diverse suit of morphological combinations in between the morphological extremes. Results showed strong associations between behavior and habitat preferences, suggesting that behavior may constrain the shape of the locomotor system in damselfishes. Position in the water column show relation with the cephalic region and truck, behavior is related to the cephalic angle and the angle of insertion of the pectoral fin, while maximum depth is related to the caudal peduncle. Was found little relation between the caudal peduncle, the angle of pectoral fin attachment and the rest modules, therefore, this two modules may be the main responsible of swimming fitness in damselfishes. Finally, cephalic region is highly related to most modules, especially to trunk. This strong integration may be responsible of the limit morphological variation of damselfishes. [less ▲]

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See detailRécit de vie d’une sainte en devenir dans le sillage des Pères de la Foi : le portrait de Julie Billiart, fondatrice des Sœurs de Notre-Dame, par sa compagne, Françoise Blin de Bourdon
Henneau, Marie-Elisabeth ULg

in Mostaccio, Silvia; Caffiero, Marina; de Maeyer, Jan (Eds.) et al Échelles de pouvoir, rapports de genre, Femmes, jésuites et modèle ignatien dans le long XIXe siècle (2014, November)

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See detailDistribution and robustness of a distance-based multivariate coefficient of variation
Aerts, Stéphanie ULg

Poster (2014, November)

When one wants to compare the homogeneity of a characteristic in several popula- tions that have di erent means, the advocated statistic is the univariate coe cient of variation. However, in the ... [more ▼]

When one wants to compare the homogeneity of a characteristic in several popula- tions that have di erent means, the advocated statistic is the univariate coe cient of variation. However, in the multivariate setting, comparing marginal coe cients may be inconclusive. Therefore, several extensions that summarize multivariate relative dispersion in one single in- dex have been proposed in the literature (see Albert & Zhang, 2010, for a review). In this poster, focus is on a particular extension, due to Voinov & Nikulin (1996), based on the Mahalanobis distance between the mean and the origin of the design space. Some arguments are outlined for justifying this choice. Then, properties of its sample version under elliptical symmetry are discussed. Under normality, this estimator is shown to be biased at nite samples. In order to overcome this drawback, two bias corrections are proposed. Moreover, the empirical estimator also su ers from a lack of robustness, which is illustrated by means of in uence functions. A robust counterpart based on the Minimum Covariance Determinant estimator is advocated. [less ▲]

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See detailIon mobility-mass spectrometry to perform structural classifications of disulfide-bridged-peptides
Massonnet, Philippe ULg; Upert, Gregory; Morsa, Denis ULg et al

Poster (2014, November)

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See detailANÁLISE DE REQUISITOS PARA AVALIAÇÃO DE QUALIDADE GEOMÉTRICA NO REGISTRO DO PATRIMÔNIO ARQUITETÔNICO COM TÉCNICAS FOTOGRAMÉTRICAS
Campos, Mariana Batista; De Moraes, Marcus Antunes; Tommaselli, Antonio Maria Garcia et al

in Nome, Carlos Alejandro; de Magalhães Cordeiro, Aristóteles Lobo; Rocha, Germana Costa (Eds.) Anais ARQDOC 2014 INFORMAÇÃO E CONHECIMENTO PARA PRESERVAÇÃO (2014, November)

The documentation of the cultural heritage is a concern since 1885, with the first application of photogrammetry techniques by Albrecht Meydenbauer. In 1987, The International Council of Monuments and ... [more ▼]

The documentation of the cultural heritage is a concern since 1885, with the first application of photogrammetry techniques by Albrecht Meydenbauer. In 1987, The International Council of Monuments and sites has recommended the creation of photogrammetry records of monuments and archaeological sites. Since then, the close range photogrammetry has been the most used technique to survey cultural heritage. This technique has become faster and more accessible with the advancement of digital cameras. Despite the recommendations of International Council of Monuments and sites, the advent of new technologies and the importance of a quality evaluation and documentation, there are few studies with a rigorous analysis of the requirements for the cultural heritage documentation, with focus on the geometry of the models generated by digital photogrammetry process. The aim of this work is to propose discussions and analysis of requirements for the evaluation of planimetric quality of photogrammetric projects applied to the cultural heritage documentation. [less ▲]

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See detailStabilité oxydative des viandes blanc bleu belge conditionnées sous atmosphère riche en oxygène après maturation sous vide ou en carcasse
Didimo Imazaki, Pedro Henrique ULg; Douny, Caroline ULg; Scippo, Marie-Louise ULg et al

in Viandes et Produits Carnés (2014, November)

The aim of this study was to evaluate the physico-chemical stability of Belgian Blue beef packaged under high-oxygen atmosphere as a function of a previous aging technique (wet-aging in vacuum conditions ... [more ▼]

The aim of this study was to evaluate the physico-chemical stability of Belgian Blue beef packaged under high-oxygen atmosphere as a function of a previous aging technique (wet-aging in vacuum conditions vs. carcass-aging). Two muscles (longissimus dorsi vs. rectus femoris) were studied. After a seven-day wet- or carcass-aging step, muscle cuts from 4 Belgian Blue cows were vacuum packaged and stored at −1 °C for up to 28 days. Each 14 days, part of these samples was repackaged under modified atmosphere (70 % O2:30 % CO2), and stored during 7 days at +4 °C. The following parameters were evaluated: color, metmyoglobin %, metmyoglobin reducing activity, fat content, fatty acid profile, lipid oxidation, antioxidant enzyme activities and alpha-tocopherol content. The sensitivity of modified atmosphere repacked meat cuts to oxidation was influenced by the conditions of the previous aging period (wet > carcass conditions), muscle (rectus femoris > longissimus dorsi) and length of the vacuum storage. [less ▲]

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See detailBacillus as a source of novel antibiotics
Fickers, Patrick ULg

Conference (2014, November)

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See detailPhotoelectric Conversion Effect in Non-Photovoltaic Photorefractive Materials
Frejlich, Jaime; De Oliveira, Ivan; Carvalho, Jesiel et al

in Latin America Optics & Photonics Conference (LAOP) - OSA Technical Digest (online) (2014, November)

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See detailEvalulating the additional value of the illness perceptions questionnaire in patients with chronic low back pain
Leysen, M; Nijs, J; Van Wilgen, CP et al

in Abstract Book of 7th Biennial Congress of The Belgian Back Society (2014, November)

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See detailCost-effectiveness model for sofosbuvir in chronic hepatitis C
De Groote, K; Michielsen, P; DELWAIDE, Jean ULg

in Value in Health (2014, November)

Pan-genotypic cost-effectiveness has been demonstrated for sofosbuvir in comparison for the current standard of care in HCV in Belgium. Overall, the wheghted pan-genotypic ICER is 15.575 Euros.

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See detailMicrowave-assisted extraction of pectin from unused pumpkin biomass
Košťálová, Zuzana; Aguedo, Mario ULg; Hromádková, Zdenka

Poster (2014, November)

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See detailConnexion universelle et enveloppement du futur dans le présent
Bouquiaux, Laurence ULg

Conference (2014, November)

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See detailSpace Weather at Saturn - Auroral observations
Radioti, Aikaterini ULg; Grodent, Denis ULg; Gérard, Jean-Claude ULg et al

Conference (2014, November)

Unlike to Earth, Saturn is a fast rotator and its magnetosphere is dominated by fast planetary rotation and internally driven processes. However, the interaction of the solar wind with Saturn’s ... [more ▼]

Unlike to Earth, Saturn is a fast rotator and its magnetosphere is dominated by fast planetary rotation and internally driven processes. However, the interaction of the solar wind with Saturn’s magnetosphere is not negligible and it is manifested among others in the auroral region. The interplanetary magnetic field reconnects with the dayside magnetopause at Saturn and results in enhancements in the auroral emission accompanied by entry of significant amount of open flux in the magnetosphere. The solar wind affects also the nightside magnetosphere. Dramatic enhancements of the nightside-dawn auroral emissions have been attributed to solar wind-induced auroral storms. Additionally, recent auroral observations revealed the presence of a transpolar arc at Saturn, one of the most spectacular auroral features at Earth, which could be possibly related to solar wind driven tail reconnection. Finally, there is evidence of viscous interaction of the solar wind with Saturn’s magnetosphere, which involves magnetic reconnection on a small scale. [less ▲]

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See detailReference values for the craniocervical flexion test in healthy volunteers
Demoulin, Christophe ULg; Hody, Stéphanie ULg; GROSDENT, Stéphanie ULg et al

in Abstract Book of 7th Biennial Congress of The Belgian Back Society (2014, November)

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See detailBash Tapa (Iraq). The Pottery from the First Excavation Campaign
Mas, Juliette ULg

Conference (2014, November)

Bash Tapa is a circa 8 ha settlement, located 35 km South of Erbil, in Iraqi Kurdistan. Its exploration was began in September 2013 by a french archaeological mission, led by L. Marti (CNRS, Paris). When ... [more ▼]

Bash Tapa is a circa 8 ha settlement, located 35 km South of Erbil, in Iraqi Kurdistan. Its exploration was began in September 2013 by a french archaeological mission, led by L. Marti (CNRS, Paris). When the sounding carried out on the top of the site allowed us to explore middle-assyrian levels, the stratigraphical step trench excavated on the southern slope of the tell revealed six phases of occupation dating to the 3rd millennium BC, from the Ninevite 5 to the Early Dynastic III periods. A first evaluation of the pottery material recovered in this operation revealed that there are different traditions represented at the site. In fact, while the material dated from the beginning of the Early Bronze Age is clearly related to the Northern tradition, the most recent 3rd millennium levels identified so far have provided us with pottery which could be connected to Central Mesopotamia, and more specifically to the Diyala region. This paper will give a first overview of the pottery from the first campaign of excavation at Bash Tapa, mainly focusing on 3rd millennium material, its links with the other regions of Near East and its significance for chronology. [less ▲]

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See detailAnalysing spatiotemporal changes in sediment contamination
Richir, Jonathan ULg; Pini, Jennifer; White, Shannon et al

Poster (2014, November)

Coastal environments are subjected to anthropogenic threats, of which pollution by trace elements (TEs). They remain chemicals of concern because of their toxicity, their ability to be concentrated in ... [more ▼]

Coastal environments are subjected to anthropogenic threats, of which pollution by trace elements (TEs). They remain chemicals of concern because of their toxicity, their ability to be concentrated in biota and their persistence in sediment. Aware of these threats, monitoring agencies perform large environmental surveys. However, the databases generated often remain underexploited, even though they represent an important source of information for scientists. As a case study, we focused on the highly industrialized and developed coastal area of the Solent, south coast of the UK, which is also a European Marine site with protected habitats and species. To date, no scientific-based spatiotemporal trend has been published regarding its pollution in TEs. But mining of existing databases requested from the Environmental Agency and the Marine Environment Monitoring and Assessment National database showed that sediment from 32 sites were/are indeed monitored for that purpose, covering a 22 years period (1992-2013). Temporal trend analysis showed that sediment contamination significantly decreased during that time interval (45 % decrease in median). However, all TEs still show concentrations above Sediment Quality Guidelines. Important spatial variability is also present, presumably linked to the distribution of pollutant anthropogenic sources. Taken together, these data have been used to provide stakeholders with relevant scientific based tools, i.e. GIS maps of the contamination in TEs in the Solent. This regional-level assessment enables local stakeholders to create bridges between environmental scientists and local authorities and valorizes the existing databases, for future governance at the regional and national scales. [less ▲]

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See detailSocio-economic characteristics of Fulani's households in Northeastern Benin
Chabi Toko, Roukayath ULg; Adegbidi, Anselme; Lebailly, Philippe ULg

in Kovacevic, Dusan (Ed.) Book of proceeding Fourth International Scientific Agricultural Symposium "Agrosym 2014" (2014, November)

Fulani belong to a socio-cultural group predominantly met in western Africa and usually raises cattle. Known as a nomadic group, Fulani have become increasingly more settled and combine crop farming with ... [more ▼]

Fulani belong to a socio-cultural group predominantly met in western Africa and usually raises cattle. Known as a nomadic group, Fulani have become increasingly more settled and combine crop farming with livestock husbandry. In Benin Fulani are predominant in the two eastern departments of the north. This community plays a key role in meat and milk supply in the country. But deep information on their household characteristics is scarce so that specific development actions concerning their activities are scarce. This study was carried out to characterize their household and highlight their livelihood strategies in the three agroecological conditions of the study area. 150 Fulani livestock keepers randomly selected were interviewed in 2013. The results show that the average household size is 18 people of which 22% are directly involved in cattle farming. The land is mostly inherited and the average size for a household is about 10.5 ha. Half of the land size is devoted to crops farming mainly 80% for home consumption and 17% to cotton production. Their livestock includes cattle, sheep, goats and poultry (chickens and Guinea fowl). Cattle represent 50% of the household livestock size. Cattle provide daily milk consumed at 51%; the rest is sold. Fulani also sell in average one cattle per month. In less favorable ecological conditions, they derive their income mainly from livestock. While in the regions where it rains more, they diversify their incomes by investing in food crops and cash crop (cotton mainly) farming. [less ▲]

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See detailTreg/Th17 balance during murine embryo implantation and pregnancy
Polese, Barbara ULg; Gridelet, Virginie ULg; Araklioti, Eleni et al

Poster (2014, November)

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See detailStress and singing accuracy: What is the relationship?
Larrouy, Pauline ULg

Conference (2014, October 31)

Singing in public can be stressful and stress affects the control of the fundamental frequency, i.e. a critical element to control in order to sing in tune. It seems thus clear that singing in public will ... [more ▼]

Singing in public can be stressful and stress affects the control of the fundamental frequency, i.e. a critical element to control in order to sing in tune. It seems thus clear that singing in public will have an influence on vocal accuracy. In addition, the quality of a musical performance can be lessened or enhanced if the performer experiences stressful conditions. In order to clarify the effects of stress on singing accuracy and to explore solutions to favor the positive consequences of stress, we ran an experiment in collaboration with the Royal Conservatory of Liège. Thirty-one music students were asked to learn a simple melody. There were then recorded in a stressful condition (i.e., a music examination) and a non-stressful condition. Two groups were defined according to the challenge level of the music examination (first and second music levels). Measurements were made by self-reported state anxiety (CSAI-2R questionnaire) and by observing heart rate activity (electrocardiogram) during each performance. In addition, the vocal accuracy of the sung performances (in terms of respect of melodic contour, precision of intervals and respect of the tonality) was objectively analyzed. As expected, state anxiety and heart rate were significantly higher on the day of the music examination than in the non-stressful condition for all the music students. However, the effect of stress was positive for the first-year students but negative for the second-year students, for whom the music examination was particularly challenging. In addition, highly significant correlations were found between the intensity of cognitive symptoms and the vocal accuracy criteria. This study highlights the contrasting effects of stress on singing voice accuracy. The results encourage searchers to take into account the stress level of the performer when evaluating singing accuracy. In addition, it seems pertinent to work on the perception of somatic and cognitive symptoms in higher music institutions and to try to diminish the stress level of students, in order to favor the positive consequences of stress on the quality of musical performances. Thanks to this method, we are actually focusing on studies designed to better understand the effects of stress on speaking voice. [less ▲]

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See detailInjections de PRP et tendinopathies
Kaux, Jean-François ULg

Conference (2014, October 30)

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See detailComputergestützte Förderung der mündlichen Leistung im Fremdsprachenunterricht - Die @lter Fremdsprachkurse an der Universität Lüttich (ULg), Belgien
Thonard, Audrey ULg; Jérôme, Françoise ULg; Badir, Yasmine ULg et al

Poster (2014, October 30)

The poster présents the implementation of voice tools in the service of foreign language learning at the University of Liège. Oral skills (comprehension and production) are trained online in autonomy and ... [more ▼]

The poster présents the implementation of voice tools in the service of foreign language learning at the University of Liège. Oral skills (comprehension and production) are trained online in autonomy and with instructors' interventions. The setting also provides facilities for oral feedbacks. [less ▲]

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See detailLe TSM (Test Spectral Métacognitif) : 10 caractéristiques pour relever 5 défis de la formation
Leclercq, Dieudonné ULg

in Actes du 28° Congrès de l'AIPU 2014 Mons Belgique du 18 au 22 mai 2014 (2014, October 30)

Les cinq défis de l'éducation auxquels le TSM vise à apporter des réponses relèvent (1) de la maîtrise d'un domaine disciplinaire, (2) de la maîtrise de'habiletés et compétences générales comme la ... [more ▼]

Les cinq défis de l'éducation auxquels le TSM vise à apporter des réponses relèvent (1) de la maîtrise d'un domaine disciplinaire, (2) de la maîtrise de'habiletés et compétences générales comme la vigilance cognitive et la lecture de consignes, (3) de compétences métacognitives, (4) du développement épistémique et (5) de la motivation à apprendre. Par 10 caractéristiques, le TSM vise à contribuer à ces cinq défis A LA FOIS. Après une introduction théorique à la problématique, un TSM de démonstration (de 16 questions) est présenté. l-Le lecteur peut l'expérimenter sur lui-même, puis télécharger les réponses correctes et enfin traiter ses résultats. [less ▲]

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See detailBetween dialect and idiolect in Deir el-Medineh
Winand, Jean ULg

Conference (2014, October 29)

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See detailMigration in Extreme Climate Scenarios
Zickgraf, Caroline ULg

Conference (2014, October 29)

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See detailRevealed preference tests of collectively rational consumption behavior
Crama, Yves ULg

Conference (2014, October 28)

To verify the empirical adequacy of a particular household consumption model, it is important to develop efficient tests that can be applied to real-world data. These tests check whether the observed ... [more ▼]

To verify the empirical adequacy of a particular household consumption model, it is important to develop efficient tests that can be applied to real-world data. These tests check whether the observed household behavior is "rational", in the sense that it is consistent with the predictions of the model. In this talk, we present different approaches based on revealed preferences to test collective models of household consumption. Testing collective rationality is computationally difficult (NP-hard). In order to overcome this negative result, we introduce mixed-integer programming formulations which can be used for medium-sized data sets. Next, we propose simulated annealing heuristics, which allow for efficient testing of the collective model on large data sets. We present the results of computational experiments using our approaches. [less ▲]

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See detailLa symétrie du vivant : des organismes aux molécules
Thiry, Marc ULg

in Bulletin de la Société Royale des Sciences de Liège (2014, October 28), 83

Les êtres vivants possèdent des caractéristiques communes de symétrie et de dissymétrie. Celles-ci ne concernent pas uniquement l’organisation externe des organismes vivants mais impliquent aussi tous ... [more ▼]

Les êtres vivants possèdent des caractéristiques communes de symétrie et de dissymétrie. Celles-ci ne concernent pas uniquement l’organisation externe des organismes vivants mais impliquent aussi tous leurs niveaux d’organisation jusqu’aux molécules qui les constituent. Le monde vivant se singularise du monde inanimé par l’homochiralité des molécules biologiques. [less ▲]

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See detailSexually dimorphic effect of gestational exposure to BPA on DNA methylation pattern in the rat placenta
FUDVOYE, Julie ULg; Dehan, Pierre ULg; Trooskens, Gheert et al

Conference (2014, October 27)

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See detailHeidegger et Wittgenstein
Gauvry, Charlotte ULg

Conference (2014, October 27)

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See detailUTILISATION DES RESIDUS DE LAVAGE DES GRANULATS DE CARRIERES DANS L’ELABORATION DE PIECES CERAMIQUES (REGION DE TAMAZOUZT, MAROC).
El Boudour El Idrissi, Hicham ULg; Daoudi, Lahcen; El Ouahabi, Meriam ULg et al

Conference (2014, October 27)

Le site potier de Tamazouzt est situé à 40 km au Sud-Est de la ville de Marrakech. La production est sous forme de poterie décorative d’ustensiles rustiques. La matière première utilisée dans ... [more ▼]

Le site potier de Tamazouzt est situé à 40 km au Sud-Est de la ville de Marrakech. La production est sous forme de poterie décorative d’ustensiles rustiques. La matière première utilisée dans l’élaboration de ces produits est issue de résidus de lavage des carrières de granulats exploités le long des oueds. En plus de la qualité des produits et des rendements élevés, ce site donne un bon exemple de valorisation des résidus de lavage qui causent des problèmes pour l’environnement et pour les industriels. Nous avons caractérisé cette matière première afin d’en faire la promotion et d’encourager l’exploitation de tels matériaux dans le domaine de la céramique à l’échelle globale. Les résultats des analyses montrent que la pâte est constituée de 62% d’argiles, 23% de limons et 15% de sables ; l’indice de plasticité est de l’ordre de 16. Pour 27% d’humidité, le degré de retrait au séchage ne dépasse pas 6%. La minéralogie indique la présence de quartz (32%), plagioclase (20%), feldspaths potassiques (10%), calcite (3%) et argile (31%). Les minéraux argileux sont constitués d’illite (16%), de chlorite (7%), de kaolinite (4%) et de vermiculite (4%). La teneur en matière organique est de 4%. La composition chimique est surtout silico-alumineuse (64% de SiO2, 17% d’Al2O3). Les autres éléments majeurs dont la teneur est significative (> 1%) sont : Fe2O3 (8%), MgO (4%), K2O (3%), CaO (3%), Na2O (2%). Les pièces cuites à 1050°C présentent 2% de retrait, 13% de porosité à l’eau, la résistance mécanique à la compression et à la flexion est respectivement de 63 et 20 Mpa. L’analyse DRX des pièces cuites à 1050°C a montré l’apparition de géhlénite, anorthite, diopside et d’hématite. Ces résultats indiquent qu’en plus de l’utilisation locale dans la poterie décorative ces argiles pourraient être valorisées comme matériaux de construction vue leur caractère isolant (bonne porosité), résistance (bon comportement mécanique) et leur couleur rouge (présence de l’hématite). [less ▲]

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See detailRecyclage des briques cassées pour améliorer les propriétés céramiques des argiles plastiques (Meknès, Maroc)
El Ouahabi, Meriam ULg; Daoudi, Lahcen; El Boudour El Idrissi, Hicham ULg et al

Poster (2014, October 27)

Dans le Bassin de Saïs (nord ouest du Maroc), les argiles du Miocène de la région de Meknès sont utilisées dans l’industrie céramique locale pour la fabrication des briques. Ces argiles riches en smectite ... [more ▼]

Dans le Bassin de Saïs (nord ouest du Maroc), les argiles du Miocène de la région de Meknès sont utilisées dans l’industrie céramique locale pour la fabrication des briques. Ces argiles riches en smectite et en carbonates, ont une granulométrie très fine, marquée par la quasi absence de la fraction sableuse. Ces propriétés les rendent très plastiques, ce qui engendre des taux de retrait importants au séchage et à la cuisson et des problèmes de qualité du produit fini qui s’en suivent (fissurations, déformations et casses pendant les processus de séchage et de cuisson). Dans le but de palier à ce problème et d’améliorer la qualité du produit fini, nous proposons au cours de cette étude de recycler les déchets de briques cassées. Afin d'atteindre ces objectifs, 4 formulations ont été réalisées à base d’argiles plastiques, riches en smectite et des casses de briques broyées. Des quantités de 5, 10, 15 et 20% de briques broyées ont été ajoutées à la pâte destinée à la confection des briques. Des analyses minéralogiques par diffraction des rayons X (DRX), chimiques par spectrométrie de fluorescence (XRF), granulométrique par granulométrie laser, ainsi que les limites d’Atterberg ont été effectuées. Les résultats minéralogiques montrent une diminution de la teneur en carbonates (calcite) et en argile totale (principalement smectite), lors des ajouts successifs de briques broyées. La fraction sableuse augmente progressivement, jusqu’à atteindre 30% pour une formulation avec 20% de casses de briques. Cette granulométrie plus grossière diminue la plasticité de la pâte et permet d’éviter les déformations et les fissures pendant le processus du séchage. De plus, l’ajout des casses de briques dilue les carbonates, ce qui permet d’améliorer la qualité du produit cuit. Ces résultats indiquent que le recyclage des déchets de briques, présente un intérêt à la fois économique et écologique. Des essais de comportement au séchage et à la cuisson ainsi que des essais mécaniques complèteront cette étude. [less ▲]

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See detailDouble stigmatization influence in oncogeriatry
Schroyen, Sarah ULg; Adam, Stéphane ULg; JERUSALEM, Guy ULg et al

in Psycho-oncology (2014, October 24)

Introduction Cancer is a major health problem widespread in elderly, which is inscribed in ageism context1. Negative influence of the vision that older people possess on aging on mental and physical ... [more ▼]

Introduction Cancer is a major health problem widespread in elderly, which is inscribed in ageism context1. Negative influence of the vision that older people possess on aging on mental and physical health2 is well established within “normal” aging. Consequently, we can ask ourselves what consequences age stigmas have in the realm of oncogeriatry. Moreover, cancerous patients face pathology-related stigmas because nowadays cancer still conveys a lot of negative representations. Method A group of 120 patients aged of 65 years old and more suffering from cancer (lung, breast or gynecological) will be followed during one year (0-3-6-12 months). Different instruments measuring quality of life, depression, symptoms, etc. are used as well as questions about their vision of aging and of cancer. Clinical parameters (weight, biologicals values, comorbidity…) are recorded too. Currently, we have 63 patients (31 breast cancer, 14 gynecological cancer and 18 lung cancer with distinction between smokers and non-smokers). Our analysis is only on the baseline at this moment, without any distinction between kinds of cancers. Results Double ANOVAs were used to analyze the data. A positive vision of aging is linked to a lower level of depression in comparison to a negative vision of aging (p = .04). Vision of pathology approach significance: less depression when vision is positive (p = .077). Concerning daily functioning (physical, emotional, social...), a positive vision of aging is related to a better functioning (p = .03) whereas vision of pathology has no effect. Eventually, a positive vision of aging and of cancer is related to a better quality of life (respectively p=.02, p=.002). Concerning clinical parameters, no results are observed. Conclusion These first results suggest that the vision patients have themselves of the age and of cancer is in relation with subjective mental and physical health. As we observe influence on vision of aging as well as pathology, we can talk about “double stigmatization”. Needless to say, more studies are needed to analyze the direction of these observation and longitudinal data analysis could bring some answers: is stigmatization provoke a less good mental and physical health or is it because I have health problem that I have a negative vision of aging and of my disease? 1. Penson, R. T., et al. (2004). The Oncologist, 9, 343-352. 2. Levy, B. (2009). Curr Dir Psychol Sci, 18, 332-336. [less ▲]

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See detailReformage catalytique du toluène
Claude, Vincent ULg; Lambert, Stéphanie ULg; Courson, Claire

Poster (2014, October 23)

This poster summarizes results obtained for the catalytic reforming of tar in the oultlet gas of a biomass gasifier. All samples were synthesized with aluminum nitrate and an organosilane (EDAS) in order ... [more ▼]

This poster summarizes results obtained for the catalytic reforming of tar in the oultlet gas of a biomass gasifier. All samples were synthesized with aluminum nitrate and an organosilane (EDAS) in order to enhance the metallic dispersion and surface area. Three different compositions have been studied (Al2O3-SiO2; Al2O3-SiO2+2%wt Ni; Al2O3-SiO2+10%wt Fe). The catalytic tests highlight the fact that the sample containing 2%Ni wt is the more appropriate in our conditions. [less ▲]

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See detailThe effect of Brand Anthropomorphism on Self-Disclosure
Gretry, Anaïs ULg; Horváth, Csilla; Belei, Nina et al

Conference (2014, October 23)

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See detailUniversité : Les interactions possibles avec l’enseignement non-universitaire
Winand, Jean ULg

Conference (2014, October 23)

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See detailBiodegradable polyester-based microcarriers with modified surface tailored for tissue engineering
Grandfils, Christian ULg; Privalova, A.; Sevrin, Chantal ULg et al

Conference (2014, October 23)

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See detailThe Initial Upper Paleolithic in Northeast Asia: toward the definition of a techno-complex
Zwyns, N.; Teyssandier, N.; Izuho, M. et al

Conference (2014, October 23)

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See detailEvolution des eucaryotes : l'éclairage de la phylogénie moléculaire
Baurain, Denis ULg

Conference (2014, October 23)

Ce cours-conférence propose d'examiner l'origine et l'évolution des eucaryotes au travers de la biologie, la géologie et la paléontologie. Les eucaryotes forment un des trois domaines de la vie, et ... [more ▼]

Ce cours-conférence propose d'examiner l'origine et l'évolution des eucaryotes au travers de la biologie, la géologie et la paléontologie. Les eucaryotes forment un des trois domaines de la vie, et comprennent les animaux (dont les êtres humains), les plantes et les champignons, mais surtout une énorme majorité de protistes (eucaryotes unicellulaires) dont la diversité reste encore en partie à explorer. De grandes questions restent à élucider quant à l'origine du domaine Eucarya, sa position au sein de l'arbre de la vie, et les modalités et conditions de diversification et d'évolution depuis au moins 1,8 milliards d'années. La première leçon abordera l'origine de la cellule eucaryote, en discutant les différentes hypothèses existantes et la nature de LECA (Last Eucaryotic Common Ancestor). Comment tester ces hypothèses avec de nouvelles approches ? Comment révéler la diversité actuelle des eucaryotes encore en partie inexplorée et quelles réponses peut-elle apporter ? La seconde leçon présentera d'abord l'éclairage de la phylogénie moléculaire : comment utiliser les informations conservées dans le matériel génétique, pour mieux comprendre l'évolution des eucaryotes ? Quelles sont les possibilités et les limitations de la phylogénomique et des horloges moléculaires ? On présentera ensuite les informations enregistrées dans le registre fossile du Précambrien. Comment reconnaitre les eucaryotes fossiles, les étudier, et reconstruire leur évolution et diversification dans les conditions paléoenvironnementales depuis au moins 1,8 milliards d'années ? Ces deux leçons donneront donc un aperçu de l'état des connaissances, des nouvelles méthodes utilisées, et des grandes énigmes à résoudre à propos de notre domaine Eucarya. [less ▲]

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See detailL'ambivalence de la bibliothèque: l'érudition au XVIIe siècle
Decoster, Sara ULg

Conference (2014, October 22)

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See detailCharpentes anciennes en région Bruxelles-Capitale : réalisation d’un inventaire typologique et dendrochronologique
Weitz, Armelle ULg; Charruadas, Paulo ULg; Cremer, Sarah et al

in Charpentes historiques en bois de la construction à la restauration (2014, October 21)

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See detailArchitectures implicites, pouvoirs invisibles : le libertinage érudit
Decoster, Sara ULg

Conference (2014, October 20)

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See detailAnalysis of the interactions of natural elicitor rhamnolipids with plant plasma membranes by in silico methods
Polo Lozano, Damien ULg; Nasir, Mehmet Nail ULg; Deleu, Magali ULg et al

Poster (2014, October 20)

Rhamnolipids are surface active molecules produced mainly by various strains of the bacterium Pseudomonas aeruginosa. These secondary metabolites are composed of one to three fatty acids with various ... [more ▼]

Rhamnolipids are surface active molecules produced mainly by various strains of the bacterium Pseudomonas aeruginosa. These secondary metabolites are composed of one to three fatty acids with various chain lengths linked through a glycosidic bond to one or two rhamnose moieties. The fatty acids are linked together through an ester bond. These molecules have shown several biological activities including plant defense stimulation. It has be suggested that this elicitor activity could be related to an interaction of rhamnolipids with the lipid bilayer of the plant plasma membrane (PPM) and lead to its destabilization, which can activate the plant defense signaling pathways. In this context, interactions of two rhamnolipids (Rha-C10-C10 and Rha-Rha-C10-C10) with membrane models and lipidic constituents of the PPM were investigated using in silico approaches. Most probable chemical structures of the rhamnolipids were determined using the STRUCTURE TREE procedure according to the molecule potential energy. The ability of these rhamnolipid structures to insert within the PPM was assessed using IMPALA simulations. IMPALA uses a membrane model in which phospholipids molecules are implicitly modeled by an empirical function and the membrane properties are modeled by energetic restraints. The ability of each rhamnolipid structure to form an assembly with several PPM constituents (phospholipid (PLPC), sterols (Sitosterol, Stigmasterol, Campesterol) and sphingolipids (GIPC, Glucosylceramide)) was calculated using the HYPERMATRIX procedure, which calculate and minimize the energies of interaction between all molecules of the complex until the lowest energy structure is reached. [less ▲]

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See detailAdvances in the synthesis of degradable polymers for biomedical applications
Lecomte, Philippe ULg

Conference (2014, October 20)

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See detailInfluence of Morphine on the Rabbit Gastrointestinal Tract
Deflers, Hélène ULg; Bolen, Géraldine ULg; Gandar, Frederic ULg et al

Conference (2014, October 20)

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See detailInsights upon the adsorption mechanism of KAX on malachite
Kanda, Jean-Marie; Kongolo, Mukendi; Gaydardzhiev, Stoyan ULg et al

in Yianatos, Juan (Ed.) Proceedings of the XXVII International Mineral Processing Congress (2014, October 20)

The adsorption patterns of potassium amylxanthate on the surface of high purity malachite subjected to prior sulfidization with NaSH have been followed and elucidated. DRIFTS spectroscopy has been used to ... [more ▼]

The adsorption patterns of potassium amylxanthate on the surface of high purity malachite subjected to prior sulfidization with NaSH have been followed and elucidated. DRIFTS spectroscopy has been used to trace the associated physicochemical alterations as well as the chemical species present on the mineral surface. Varying the collector concentration from 5.10-4 to 1.10-2 mol/L has led to different degree of surface coverage of the alkyl groups in combination with formation of organometallic hydrophobic complexes of CuX and CuX – X2 type. The results reveal that the CuX complex formed on the malachite surface without sulfidizing agent is more unstable and prone to dissolution-precipitation phenomena. Based upon the constructed adsorption isotherms and upon the degree of statistical coverage, different zones of mineral-reagent interactions could be distinguished. They correspond respectively to the monolayer, bi-layer and tridimensional condensation domains. In each of the identified zones mono or double layer adsorption patterns of the collector are proposed leading respectively to formation of surface compounds with different degree of hydrophobicity. [less ▲]

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See detailPhysicochemical observations during process water reuse in flotation of oxide copper-cobalt ore
Shengo, Michel; Gaydardzhiev, Stoyan ULg; Kalenga, Pierre

in Yianatos, Juan (Ed.) Proceedings of the XXVII International Mineral Processing Congress (2014, October 20)

Lab-scale flotation of copper and cobalt oxidized ore from the Luiswishi deposit in the Katanga province (DRC) has been done focusing on the influence of the degree of process water recycling on metals ... [more ▼]

Lab-scale flotation of copper and cobalt oxidized ore from the Luiswishi deposit in the Katanga province (DRC) has been done focusing on the influence of the degree of process water recycling on metals recovery. Results have shown that at 20 % recycling rate, the recovery of copper and cobalt in the cleaner stage have been respectively reduced to 23 % and 45 % in comparison to 53 % Cu and 63 % Co if process water has not been recycled. At 10 % recycling rate however, the system could still tolerate the effect from recycling, since Cu and Co recovery has remained respectively at acceptable levels of 52 % and 60 %. In order to explain the reasons for the observed worsening of flotation results if process water was recycled at rate higher than 20 %, electrochemical investigation of the pulp has been performed. It has been established that the chemical compounds formed in the pulp when process water was recycled, do influence the sulfidization of malachite and heterogenite and impact further collector adsorption. To confirm these assumptions, the effect from thiosulphate ions presence during the sulfidization of high purity malachite has been studied. It has been found, that thiosulphate ions depending on their concentration in water induce variations in pulp properties such as DO content, pH, Es and contribute to formation of undesirable chemical compounds on mineral surface as identified by DRIFT spectroscopy. [less ▲]

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See detailThe Airline Container Loading Problem with Pickup and Delivery
Lurkin, Virginie ULg; Schyns, Michael ULg

Conference (2014, October 19)

The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at ... [more ▼]

The present paper looks into the problem of optimizing the loading of a set of containers and pallets into cargo aircraft serving multiple airports. Due to the pickup and delivery operations occurring at intermediate airports, this problem is simultaneously a weight and balance problem and a sequencing problem. Our objective is to minimize fuel and handling operations costs. This problem is shown to be NP-hard. We resort to a mixed integer linear program. On the basis of a professional partner's real-world data, TNT Airways, we perform numerical experiments using a standard B&C library. This approach yields better solutions than traditional manual planning, which results in substantial cost savings. [less ▲]

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See detailCharacterization of collagen fibrils after equine suspensory ligament injury: an ultrastructural and biochemical approach
Shikh Al Sook, Mohamad Khir ULg; Gabriel, Annick ULg; Salouci, Moustafa et al

Poster (2014, October 19)

Suspensory ligament (SL) injuries are an important cause of lameness in horses. The mechanical properties of connective tissue in normal and pathological ligaments are mainly related to the fibril ... [more ▼]

Suspensory ligament (SL) injuries are an important cause of lameness in horses. The mechanical properties of connective tissue in normal and pathological ligaments are mainly related to the fibril morphology, as well as the collagen content and types. The purpose of this study was to evaluate, using biochemical and ultrastructural approaches, the alterations in collagen fibrils after injury. Eight Warmblood horses with visible signs of injury in only one forelimb SL were selected and specimens were examined by transmission electron microscope (TEM). Collagen types I, III and V were purified by differential salt precipitation after collagen extraction with acetic acid containing pepsin. TEM revealed abnormal organization as well as alterations in the diameter and shape of fibrils after SL injury. The bands corresponding to types I, III and V collagen were assessed by densitometry after sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE). Densitometric analysis indicated that the proportions of type III and type V collagen were significantly higher (P <0.001) in damaged tissues compared to normal tissues with a mean increase of 20.9 and 17.3% respectively. Concurrently, a significant decrease (P <0.001) in type I collagen within damaged tissues was recorded with a mean decrease of 15.2%. These alterations could be the hallmark of a decrease in the tissue quality and mechanical properties of the ligament. This provides new insight for subsequent research on tissue regeneration that may lead to the development of future treatment strategies for SL injury. [less ▲]

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See detailFamilial hypocalciuric hypercalcemia : a rare cause of recurrent pancreatitis
Daniel, Sara ULg; Potorac, Iulia ULg; MALAISE, Olivier ULg et al

in Abstract book - 24th Meeting of the Belgian Endocrine Society (2014, October 18)

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See detailDetermination of COBALT in patients with metal hip prosthesis
MISTRETTA, Virginie ULg; Charlier, Corinne ULg

Poster (2014, October 18)

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See detailRole of non-polyQ regions on the aggregation process by polyQ proteins into amyloid fibrils
Huynen, Céline ULg; Willet, Nicolas ULg; Buell, Alexander K et al

Poster (2014, October 18)

Nine neurodegenerative disorders, referred to as polyglutamine diseases and including Huntington’s disease, are associated with the abnormal expansion of a polyglutamine tract inside nine unrelated ... [more ▼]

Nine neurodegenerative disorders, referred to as polyglutamine diseases and including Huntington’s disease, are associated with the abnormal expansion of a polyglutamine tract inside nine unrelated proteins. This polyQ expansion is thought to be the major determinant in the development of neurotoxicity, triggering protein aggregation into amyloid fibrils. A large body of evidence however indicates that non-polyQ regions modulate the aggregation process triggered by polyQ expansions. The interplay between the polyQ tract and non-polyQ regions is complex and still not fully understood. In order to better understand it, we previously designed and characterized model polyQ proteins made of the beta-lactamase BlaP and a 23, 30, 55 or 79Q tract inserted in position 197 or 216. These chimeras recapitulate the aggregation properties of polyQ disease-associated proteins: there is a Q-threshold for the formation of amyloid fibrils, and above the threshold, the longer the polyQ, the faster the aggregation. Moreover, the structure of BlaP (native or unfolded) and the position of insertion of the polyQ tract (197 versus 216) influence their aggregation properties. In this work, (i) we discuss the role of the conformation of the host protein, BlaP, and of the location of the polyQ within BlaP on the different phases of amyloid fibril formation, the nucleation and elongation steps, using mainly quartz crystal microbalance (QCM), atomic force microscopy (AFM). Our results highlight a linear dependence of the polyQ length on the elongation rate whatever the insertion site and the conformation of BlaP. These two parameters however drastically influence the ability of a polyQ tract to trigger the nucleation and the elongation steps of amyloid fibril formation. (ii) Finally, we investigate the precise aggregation threshold and the modulating role of the N- and C-terminal polyQ flanking sequences in position 197 of BlaP by creating and characterizing new chimeras containing intermediate length polyQ tracts in position 197, or polyQ tracts inserted between two cleavage sites in position 197, respectively. We observe that the propensity to trigger the full process of amyloid fibril formation and its rate seems to be largely dependent on the polyQ length and on the polyQ flanking sequences. Altogether our results contribute to identify the important species and elements (polyQ or non-polyQ regions, monomers, oligomers or fibrils) during the aggregation process into amyloid fibrils to interfere with the latter associated with neurotoxicity. [less ▲]

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See detailA novel mutation of the luteinizing hormone/choionic gonadotrophin receptor gene leading to Leydig cell hypoplasia type I
Potorac, Iulia ULg; Rivero-Müller, Adolfo; Pintiaux, Axelle ULg et al

in Abstract book - 24th Meeting of the Belgian Endocrine Society (2014, October 18)

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See detailCharacterization of paragangliomas : a single center cohort study
VROONEN, Laurent ULg; Maiga, Ibrahima ULg; PETROSSIANS, Patrick ULg et al

in Abstract book - 24th Meeting of the Belgian Endocrine Society (2014, October 18)

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See detailCase report : Rhabdomyolysis following acute alcohol intoxication
HALENG, Jeanine ULg; CAVALIER, Etienne ULg

Poster (2014, October 18)

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See detailLien entre représentation du vieillissement chez le personnel de MR/MRS et la qualité de vie de résidents déments: Intérêt de l’enquête FIH
Missotten, Pierre ULg

Conference (2014, October 17)

A l’heure actuelle, la vision prégnante du vieillissement est négative, teintée des phénomènes d’âgisme et de jeunisme. Cette vision est objectivée dans diverses enquêtes récentes (ex : l’Eurobaromètre ... [more ▼]

A l’heure actuelle, la vision prégnante du vieillissement est négative, teintée des phénomènes d’âgisme et de jeunisme. Cette vision est objectivée dans diverses enquêtes récentes (ex : l’Eurobaromètre des statistiques de discrimination en Europe) qui soulignent que le motif de discrimination le plus souvent cité en Europe est l’âge (correspondant ici au fait d’avoir plus de 55 ans ; 4 % en 2012, 6 % en 2009), suivi seulement par la race (3 %). Si la personne vieillissante est déjà stigmatisée en général, il n’est pas étonnant de constater que le fait d’être atteint d’une pathologie démentielle accroît encore ce phénomène : les individus souffrant de démence sont considérés comme faisant partie du groupe le plus marginalisé et stigmatisé dans la société (Graham et al., 2003). Les personnes qui en sont atteintes sont souvent perçues comme n’ayant plus une bonne qualité de vie (Qdv) ni la capacité d’éprouver du plaisir (Garand et al., 2009). En ce sens, ces personnes font donc l’objet d’une double stigmatisation (stigmatisation liée au fait d’être âgé et d’être atteint de démence). Sur base de ce constat, cette présentation s’axera sur les liens qui peuvent exister entre nos représentations du vieillissement (et de la démence) et le concept de Qdv. Tout d’abord, nous aborderons les résultats des recherches dans le vieillissement « normal ». A côté des études de Levy (cf. Levy, 2009 pour une synthèse) ayant démontré l’impact délétère d’une vision négative du vieillissement sur la santé mentale et physique des aînés, diverses études récentes (ex : Bodner et al., 2011) ont montré qu’une vision négative du vieillissement était liée à une moindre Qdv. Plus encore, le niveau de Qdv peut en partie s’expliquer par la vision du vieillissement (ex : Top et al., 2012). Ces constations nous amènent à nous questionner sur la situation dans le cadre des pathologies démentielles. A ce niveau, il s’avère nécessaire de recourir à une hétéro-évaluation de la Qdv pour toute personne souffrant d’une démence sévère. En ce sens, ce n’est pas le patient lui-même qui fournit des réponses mais un aidant (professionnel ou familial). Sur base de cet élément, nous avons mis au point un protocole de recherche destiné à évaluer la Qdv de personnes souffrant de pathologies démentielles vivant en MR ou MRS, en y incluant des mesures d’âgisme des aidants. Ce protocole a été élaboré dans le cadre d’une collaboration avec l’ASBL Fédération des Institutions Hospitalières (FIH). Nous faisons l’hypothèse que la perception d’une même réalité (un même patient est évalué sur base d’un même outil) c.à.d. la qualité de vie, serait en partie tributaire de la vision que chaque soignant a du vieillissement et de la démence. Dans le prolongement de la présentation de cette étude, nous aborderons le fait qu’avoir une vision négative du vieillissement et de la démence nous amène à avoir des attitudes différentes (souvent bienveillantes mais pas toujours positives) à l’égard des personnes âgées. Ces attitudes ont un impact délétère sur la santé mentale et physique des personnes âgées et donc aussi sur leur qualité de vie (ex : Mandelblatt et al., 2003). Ces conséquences de l’âgisme sont donc susceptibles de confirmer la vision négative véhiculée à l’égard des personnes âgées (ex. : les personnes âgées sont vulnérables, dépendantes et ont une mauvaise qualité de vie) et ainsi d’alimenter un cercle vicieux. Biblio 1. Eurobaromètre 57.0 - mai 2012 - http://europa.eu.int/comm/public_opinion/ 2. Graham et al., 2003 Int J Geriatr Psychiatry, 18(8), 670-678. 3. Garand et al. (2009). Res Gerontol Nurs, 2(2), 112-121. 4. Levi (2009). Curr Dir Psychol Sci; 18, 332-6 5. Bodner et al. (2011). Int Psychogeriatr,23(8),1197–1204 6. Top et al. (2012). Research on Aging, 35(5), 533-562 7. Mandelblatt et al. (2003). J Clin Oncol, 21, 855-863. [less ▲]

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See detailEffet de l'expertise musicale sur la perception de la justesse vocale
Gosselin, Laura; Morsomme, Dominique ULg; Larrouy, Pauline ULg

Poster (2014, October 17)

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See detailPratique de l’équimotricité© : motifs de participation et perception de l’impact
Saublens, Catherine; Cloes, Marc ULg

in Science et sports (2014, October 17), 29(Hors-série 1), 17

La littérature souligne toute l'importance du développement moteur chez les enfants. De nombreux parents s'efforcent de trouver, au sein de la communauté, des activités susceptibles de palier le manque d ... [more ▼]

La littérature souligne toute l'importance du développement moteur chez les enfants. De nombreux parents s'efforcent de trouver, au sein de la communauté, des activités susceptibles de palier le manque d'occasions de pratique de ces derniers. La participation à des séances au cours desquelles les enfants alternent des périodes d'activité physique sur un poney et au cours desquelles ils conduisent ce dernier est considérée par les parents comme très bénéfique à leur développement. [less ▲]

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See detailLocal goat in Kabylie (Chemini and Bouzeguene)
Moula, Nassim ULg; Michaux, Charles ULg; Philippe, François-Xavier ULg et al

Poster (2014, October 17)

The livestock sector plays a dynamic role in the economic development of rural areas in Algeria. Due to its adaptation to harsh environments, goat breeding is practiced in many areas of the country. To ... [more ▼]

The livestock sector plays a dynamic role in the economic development of rural areas in Algeria. Due to its adaptation to harsh environments, goat breeding is practiced in many areas of the country. To the north, it is confined to mountainous areas, but the bulk of the workforce is left in the steppe and semi-desert areas. The goat population in Algeria reached 3.8 million heads, ranking second after sheep. The present work contributes to a better characterisation of local goat in Kabylie for production and reproduction traits. The study was conducted in the regions of Chemini (Bejaia province) and Bouzeguene (Tizi-Ouzou province). A survey was conducted in 29 herds. The results revealed that the overall mean of goats per households was 6.69 ± 2.97. The purposes of keeping goat in Chemini and Bouzguene was private consumption of milk (82.76%) and meat (68.97%) as well as for commercial exchange (62.07%). The Kabyle goat is small (male: 62.23 cm and female: 58.41 cm) with long hair. Its ears are drooping, its convex profile has a slightly pronounced nasal split and its coat colour ranges from dark brown to black. However, the crossbreeding with exotic breeds (mainly with Saanen goat), controlled or uncontrolled, increased the frequency of white coat. The average age at puberty in males was 6.93 ± 1.04 and 7.38 ± 0.94 months in females. The reported age at first kidding and kidding interval were 13.03 ± 0.87 months and 7.83 ± 1.29 months, respectively. [less ▲]

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See detailExperimental in vivo infection of pigs by a wild boar hepatitis E virus strain
Thiry, Damien ULg; Rose, Nicolas; Paboeuf, Frédéric et al

Conference (2014, October 17)

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See detailAn evaluation of anthropometric and conditional indicators for specific positions in youth women's volleyball played as a school sport
Joao, Paulo Vicente; Contiuga, Ioana; Pereira, Ana et al

in Science & Sports (2014, October 17), 29(Hors-série 1), 31

The present study aimed to identify anthropometric and functional characteristics of female volleyball players according to their specific in the match.

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See detailLes îles (d')où fuir. Poétique croisée de la robinsonnade et de l'anticipation
Stienon, Valérie ULg

Conference (2014, October 17)

Il existe des parentés remarquables entre certaines caractéristiques du roman d’aventures et les premières fictions d’anticipation françaises. Il n'y a pas seulement que la notion d’"aventure" est floue ... [more ▼]

Il existe des parentés remarquables entre certaines caractéristiques du roman d’aventures et les premières fictions d’anticipation françaises. Il n'y a pas seulement que la notion d’"aventure" est floue, composant une catégorie infiltrante tenant de l’hypergenre ou du genre parasite, mais il existe aussi des propriétés communes formant un genre hybride de « science-fiction d’aventures» qui compose un corpus important, pourtant peu considéré par les études littéraires consacrées au récit d'anticipation. Envisagé sous cet angle, tout un pan de la production d’anticipation de la seconde moitié du XIXe siècle apparaît comme marqué par le déplacement géographique autant sinon davantage que par le voyage temporel, cultivant une plasticité qui permet dans certains cas des reprises à l’identique ou presque. Ce sont ces procédés d’hybridation qui font l'objet de cette communication, à partir d’un type de récits généralement considéré comme un sous-genre matriciel de l’aventure, la robinsonnade, considérée dans quatre romans du dernier quart du XIXe siècle: André Laurie, Les Exilés de la Terre; Georges Le Faure, Les Robinsons lunaires; Jules Verne, L'Île à hélice; Paul Adam, Lettres de Malaisie. [less ▲]

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See detailDépression, niveau d'engagement dans des activités et processus psychologiques : Nouvel axe de lecture et nouveaux outils d'évaluation
Wagener, Aurélie ULg

Conference (2014, October 17)

Cet atelier aura pour objectif de présenter un modèle théorique, testé auprès de 500 personnes, des liens entre la dépression, le niveau d’engagement dans des activités et différentes familles de ... [more ▼]

Cet atelier aura pour objectif de présenter un modèle théorique, testé auprès de 500 personnes, des liens entre la dépression, le niveau d’engagement dans des activités et différentes familles de processus psychologiques (image de soi, pensées négatives répétitives, évitement expérientiel, satisfaction environnementale, régulation émotionnelle et tendance à l’approche). Plus précisément, nous menons actuellement une étude dont les résultats nous permettront d’identifier les processus psychologiques médiateurs de la relation entre la dépression et le niveau d’engagement dans des activités. Ces processus psychologiques médiateurs pourront donc devenir des cibles précises et identifiées du traitement psychothérapeutique. Pour mener à bien cette étude, nous avons réalisé une revue de la littérature des outils évaluant spécifiquement ces processus psychologiques. Certains questionnaires ont été traduits de l’Anglais au Français et sont en cours de validation. L’ensemble des échelles utilisées, leur utilité et leur cotation, seront présentées lors de l’atelier. Elles seront également mises à disposition des cliniciens intéressés. Une discussion concernant les patients avec lesquels les utiliser sera également proposée. [less ▲]

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See detailThe effect of the inclusion of Urtica dioica leaves meal in diets on growth performances and carcass characteristics of broiler
Moula, Nassim ULg; Philippe, François-Xavier ULg; Michaux, Charles ULg et al

Poster (2014, October 17)

The objective of this study was to evaluate the effects of the inclusion of Urtica dioica leaves meal in diets on growth performances and carcass characteristics of broiler chicken. The study was ... [more ▼]

The objective of this study was to evaluate the effects of the inclusion of Urtica dioica leaves meal in diets on growth performances and carcass characteristics of broiler chicken. The study was conducted from May to June 2014 in the area of Chemini (Algeria). In a completely randomized design, a total of 100 one-day-old broilers (industrial strain) were divided into 2 groups and 2 repetitions with 25 chickens each. Group 1 was the control group fed a standard commercial diet based on corn and soybean purchased on the local market, whereas the birds in group 2 were fed the nettle diet (control diet with addition of 2% of nettle). The animals were housed inside in experimental pens and fed ad libitum. The results showed that nettle inclusion significantly promotes growth performance of broilers at 42 days of age (1644.8 ± 45.5 vs. 1565.1 ± 45.5g; P<0.05). The broilers fed the nettle diet had higher thigh yield (26.0 ± 0.3 vs. 25.2 ± 0.3%; P<0.05) but lower abdominal fat yield (4.39 ± 0.16 vs. 3.90 ± 0.16%; P<0.05). No significant effect of the diet was observed for carcass yield (around 71.1%) and breast percentage (around 32.40%). The overall mortality was not significantly different (P>0.05) for any of the dietary regimens (around 20%). Feed conversion ratio of the two groups were very close (around 2.17). This experiment showed that dietary inclusion of Urtica dioica has positive effects on growth performance and carcass quality of broilers. [less ▲]

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See detailVascular endothelial growth factor: a blood biomarker in canine idiopathic pulmonary fibrosis.
Roels, Elodie ULg; Krafft, Emilie ULg; Laurila, HP et al

Poster (2014, October 17)

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See detailL'evidence-based practice en psychologie et en logopédie
Durieux, Nancy ULg

Conference (2014, October 17)

L’evidence-based practice (EBP) est une approche qui recommande d’optimiser les soins de santé en intégrant les meilleures données actuelles issues de la recherche scientifique, l’expertise des cliniciens ... [more ▼]

L’evidence-based practice (EBP) est une approche qui recommande d’optimiser les soins de santé en intégrant les meilleures données actuelles issues de la recherche scientifique, l’expertise des cliniciens ainsi que la situation et les préférences de chaque patient (Sackett et al., 1996). L’EBP fait couler beaucoup d’encre en médecine, où elle prend sa source, mais également dans d’autres disciplines. Certains praticiens ne jurent que par elle, d’autres la décrient… Quoiqu’il en soit, le recours à l’EBP est de plus en plus encouragé en logopédie et en psychologie. Les principaux objectifs de cette conférence seront de définir l’EBP, d’en décrire les étapes et d’exposer les bénéfices et les obstacles à son application. Des perspectives d’avenir seront également discutées afin que l’EBP puisse intégrer le quotidien des logopèdes et des psychologues en Belgique. [less ▲]

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See detailPhenotyping Belgian Blue cattle for their susceptibility to psoroptic mange
Abos, Romain ULg; Coussé, Annelies; Sarre, Charlotte et al

Poster (2014, October 17)

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See detailThe Effect of Urtica dioica Supplements on Egg Quality
Touazi, Leghel; Moula, Nassim ULg

Poster (2014, October 17)

Eggs are a rich source of lipids and proteins. Because of their low production cost, they represent a cheap source of animal proteins and lipids. recently, in Algeria, consumers’ interest are oriented of ... [more ▼]

Eggs are a rich source of lipids and proteins. Because of their low production cost, they represent a cheap source of animal proteins and lipids. recently, in Algeria, consumers’ interest are oriented of healthiness and dietetic values food. The purpose of this study was to investigate the effects a dietary supplement of Urtica dioica on laying hen's performance and egg quality. The study was conducted from may to june 2014 in the area of Chemini (Algeria). Sixty, 25-wk-old Lohmann Brown layers were randomly divided into 3 groups with 20 hens in each group. Group 1 was the control group fed a standard commercial diet based on corn and soybean, whereas the groups 2 and 3 were fed the control diet supplemented with 1% and 1.5% of nettle respectively. The hens were housed in cages in the same local and fed ad libitum. Fifty five eggs were sampled 4 times in each group from 25 to 27 weeks. A total of 220 eggs were examined. A series of measurements were carried out on each egg, namely egg weight, form index (egg shape), yolk to albumen ratio (Y:A), Yolk color, egg shell thickness, Haugh’s units. Egg weight, yolk color and Haugh Units (HU) were affected by age. Significant differences (P<0.05) were recorded between feeding type in total egg weight, yolk color and Haugh Units. The egg from group 2 proved to have a higher egg weight (57.67g; group 1: 55.41g; group 3: 56.70g; P<0.05), (33.4%), intermediate Yolk color (8.53; group 1: 9.03 ; group 3: 9.38; P<0.05) and HU (79.81; group 1: 80.85; group 3: 76.92). The results showed that the use of 1% and 1.5% of Urtica dioica, had positive effects on the color of yolk of laying hens. Using different levels of Urtica dioica could change the characteristics of egg and could meet the preferences of consumers for the intense color of the yolk. [less ▲]

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See detailMélancolie et dépression : étude phénoménologique
Ramackers, Amélia; Englebert, Jérôme ULg

Poster (2014, October 17)

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See detailEffect of bovine colostrum on growth and survival in Red kids during the first year of life.
Abdou, Harouna ULg; Marichatou, Hamani; Beckers, Jean-François ULg et al

Poster (2014, October 17)

The aim of this work was to measure the effect of supplementation with bovine colostrum among newborn Red goats breastfed in breeding conditions for semi-intensive type of Niger. The study was conducted ... [more ▼]

The aim of this work was to measure the effect of supplementation with bovine colostrum among newborn Red goats breastfed in breeding conditions for semi-intensive type of Niger. The study was conducted in Secondary Goat Breeding Center of Maradi (SGBCM). Forty newborn kids, regardless of sexe, were divided randomly into two groups: a "T-Control " group receiving only breast milk per feeding (n = 20) and a "C-Colostrum" group having the same diet but supplemented with bovine colostrum thawed (50 ml the first day of life, then 25 ml in 2 meals/ day between the ages of 2 and 15d, n = 20). The results indicate that supplementation with bovine colostrum in the first 15 days of life, increases the growth of kids until weaning (P<0.001), modifie some barymetric changes some settings improves health status and reduces the mortality rate. To our knowledge, in the studied environment, this work is original and seems to bring new knowledges likely to have practical applications in areas with farming conditions quite difficult. [less ▲]

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See detailL’équimotricité© : bases théoriques, principes d’action et constats informels
SAUBLENS, Catherine; Cloes, Marc ULg

in Science & Sports (2014, October 17), 29(Hors-série 1), 49

L'évolution actuelle de la société amène une dégradation du niveau de développement moteur et de condition physique des enfants. L'équimotricité© a été créée en 2007 et connait depuis lors un ... [more ▼]

L'évolution actuelle de la société amène une dégradation du niveau de développement moteur et de condition physique des enfants. L'équimotricité© a été créée en 2007 et connait depuis lors un développement important. Cette présentation fournit une description des modalités d'organisation de cette activité destinée à enrichir les opportunités de pratique des jeunes enfants. [less ▲]

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See detailAnalyse du point de vue des enseignants sur la mise en place de « Brain Break » dans l’enseignement primaire. Étude de cas
Cloes, Marc ULg; Mornard, Manhattan ULg

in Science et sports (2014, October 17), 29(Hors-série 1), 25

Children have a natural need of movement. It seems logical to develop processes that could be used during classroom teaching. Our study aims to test one didactic approach allowing primary school pupils to ... [more ▼]

Children have a natural need of movement. It seems logical to develop processes that could be used during classroom teaching. Our study aims to test one didactic approach allowing primary school pupils to express their movement need. [less ▲]

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See detailLa psychomotricité avec poney ou équimotricité© : vidéo
Saublens, Catherine; Cloes, Marc ULg

in Science & Sports (2014, October 17), 29(Hors-série 1), 11

Physical activity has a positive impact ont child's grow, on his global development and wellness. Implemented in 2007, equimotricity corresponds to motor development activities organized in a outdoor ... [more ▼]

Physical activity has a positive impact ont child's grow, on his global development and wellness. Implemented in 2007, equimotricity corresponds to motor development activities organized in a outdoor track where children act in teams of two. [less ▲]

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See detailÉpidémiologie de la lithiase urinaire en Province de Liège
Castiglione, Vincent ULg; JOURET, François ULg; Bruyère, Olivier ULg et al

Conference (2014, October 17)

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See detailExpérimentation des « Brain Break » dans l’enseignement primaire. Avis des élèves
Cloes, Marc ULg; Mornard, Manhattan ULg

in Science & Sports (2014, October 17), 29(Hors-série 1), 52

L'école est identifiée comme un des piliers de la lutte contre la sédentarité des jeunes. Une société américaine (HOPSports) conçoit et diffuse des séquences de quelques minutes qui mettent en scène des ... [more ▼]

L'école est identifiée comme un des piliers de la lutte contre la sédentarité des jeunes. Une société américaine (HOPSports) conçoit et diffuse des séquences de quelques minutes qui mettent en scène des personnages, réalisant des activités à imiter en classe: les 'Brain Breaks' (BB). Ces videos ont été proposées pendant trois mois dans deux écoles primaires de la région liégeoise. L'opinion des élèves est positive mais leurs attitudes à l'égard de l'école et de l'activité physique ne change guère. [less ▲]

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See detailAlveolar macrophages hyporeactivity act in the extreme susceptibility of DBA/2J to Influenza A infection.
Casanova Bustos, Tomas Ronaldo ULg; Garigliany, Mutien-Marie ULg; Desmecht, Daniel ULg

Poster (2014, October 17)

DBA/2J and C57BL/6J represent two opposite ends in terms of sensitivity and resistance to influenza A virus between the Mx-negative mouse lines. Several research teams focused on the factors explaining ... [more ▼]

DBA/2J and C57BL/6J represent two opposite ends in terms of sensitivity and resistance to influenza A virus between the Mx-negative mouse lines. Several research teams focused on the factors explaining this difference, mainly by genetic approaches using Recombinant Inbred Lines between those two strains. Several candidate-genes have been proposed, but it was not possible to determine their importance. To help to define the factors involved in the susceptibility of DBA/2J mice to influenza infection, we adopted a phenotypic approach to identify the critical steps of the infection process accounting for this extreme susceptibility. Overall, the data presented here support the role of a dysfunction of alveolar macrophages, to influenza infection in the higher susceptibility of DBA/2J mice to this virus. [less ▲]

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See detailMolecular biology of HCV: past, present and future perspective
BONTEMS, Sébastien ULg

Conference (2014, October 16)

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See detailVitamine D: métabolisme, sources, modes d'action.
CAVALIER, Etienne ULg

Conference (2014, October 16)

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See detailL'intolérance environnementale idiopathique attribuée aux champs électromagnétiques (IEI-EMF)
Demaret, Isabelle ULg

Poster (2014, October 16)

Depuis le début des années '80, des chercheurs étudient les plaintes des personnes se disant hypersensibles aux champs électromagnétiques (EMF), sous les normes recommandées. Les recherches n'ont ... [more ▼]

Depuis le début des années '80, des chercheurs étudient les plaintes des personnes se disant hypersensibles aux champs électromagnétiques (EMF), sous les normes recommandées. Les recherches n'ont cependant pas démontré que ces personnes étaient capables de détecter les EMF ni qu'elles présentaient des changements physiologiques en étant exposées aux EMF . L'OMS a regroupé ces plaintes sous le nom d'Intolérance Environnementale Idiopathique attribuée aux Champs Electromagnétiques (IEI-EMF). Au niveau médical, l'IEI-EMF est classée parmi les syndromes fonctionnels somatiques comme d'autres syndromes sans bases physiologiques démontrées. [less ▲]

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See detailOutcomes from the MACSUR grassland model inter-comparison with the model CARAIB
Minet, Julien ULg; Laloy, Eric; Tychon, Bernard ULg et al

Conference (2014, October 15)

Detailed reference viewed: 17 (2 ULg)