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See detailEuropean Renal Best Practice Guideline on kidney donor and recipient evaluation and perioperative care
Abramowicz, Daniel; Cochat, Pierre; Claas, Frans H.J et al

in Nephrology Dialysis Transplantation (2014)

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See detailA longitudinal perspective of alcohol use among adolescents: the predictive role of peers and internalizing factors.
Schmits, Emilie ULg; Glowacz, Fabienne ULg; Quertemont, Etienne ULg

Poster (2014, July 09)

Alcohol is the most commonly used psychoactive substance among teenagers. Consumption is influenced by environmental factors and personal characteristics, events or experiences. High use can lead to ... [more ▼]

Alcohol is the most commonly used psychoactive substance among teenagers. Consumption is influenced by environmental factors and personal characteristics, events or experiences. High use can lead to substantial problems, especially after an early consumption. Detecting and preventing an increase of alcohol use among teenagers, through the identification of risk and protective factors, seems essential in terms of public health. This study aimed to examine the progression of use in young teenagers, to identify protective and risk factors of alcohol use (including peers and internalizing factors) and to specifically focus on the influence of social anxiety. A questionnaire was administered twice to 877 teenagers (49.94% female, M=15.61) with one year interval (T1 and T2). Sex, age, alcohol use, number of friends, social comparison, trait-anxiety, social anxiety and depression were assessed through validated scales. T-test for paired sample and hierarchical regressions were performed. During the follow-up year, the average alcohol use significantly increased. A positive social comparison at T1 significantly predicted alcohol use at T2. The more teenagers positively compared themselves to their friends and felt popular, the more they consume alcohol. A similar significant effect was demonstrated for depression. The more young people manifested depressive affects at T1, the more they used alcohol at T2. However, social anxiety significantly protected from this substance use. More social anxiety at T1 was associated with less alcohol consumption at T2. The number of friends and trait-anxiety at T1 did not significantly influence alcohol use at T2. A positive social comparison and depressive affects could be considered as risk factors, whereas social anxiety could be defined as protective factor. At this developmental period, young people suffering from social anxiety symptoms subsequently use less alcohol, maybe due to the lack of contact with this substance usually socially consumed, whereas more popular and integrated teenagers are more at risk. The present results challenge the tension-reduction model according to which alcohol is consumed to reduce anxious affects and to facilitate social relationships. However, results suggest that alcohol might be used to reduce unpleasant depressive affects. [less ▲]

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See detailThe consumption of pornography and sexuality during adolescence : between exploratory behaviour and risks of deviant behaviour
Glowacz, Fabienne ULg; Puglia, Rosa ULg

Conference (2014, July 09)

Pornographic consumption or exposure to sexually explicit media (SEM) during adolescence raises many questions, in particular concerning its incidence on the level of a teenager's psychosexual development ... [more ▼]

Pornographic consumption or exposure to sexually explicit media (SEM) during adolescence raises many questions, in particular concerning its incidence on the level of a teenager's psychosexual development and sexual behaviour. Adolescence is a stage of identity formation, characterized by the adoption of risk taking and exploratory behaviours, of which the consumption of pornography is part. Whereas some studies noticed an impact of the exposure to sexually explicit media on the level of the subject's psychosexual development, attitudes towards sexuality and sexual behaviour, other studies do not highlight any significant links between the voluntary or involuntary exposure to pornography and risk taking sexual behaviours. Two researches will be presented to deal with this question. The first study, relating to a sample of 319 teenagers aged between 15 to 18 (52% boys), shows that 85% of the subjects have already seen pornographic material, the average age a child first views pornography being between 10 and 14. Our results indicate that the forms of exposure to SEM as well as the representations of pornography and the impact of pornographic material on their sexuality are different depending on the subject's gender. Our second study, relating to a sample of 47 juvenile sexual offenders, will make it possible to consider the forms of consumption of these young people and the possible links between their sexual offence and the consumption of pornography. [less ▲]

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See detailDu processus aux soins intégrés : expérience de gestion de projet bottom-up
ERPICUM, Marie ULg; BASSLEER, Bernard ULg; Defraigne, Jean-Olivier ULg et al

Conference (2014, July 08)

Implementation of blood conservation strategies is a current issue in a public health view, especially in cardiac surgery. A service project has been initiated in the cardiovascular department of the CHU ... [more ▼]

Implementation of blood conservation strategies is a current issue in a public health view, especially in cardiac surgery. A service project has been initiated in the cardiovascular department of the CHU of Liege aiming to develop a blood conservation program. This project has evolved into the creation of a clinical pathway of the cardiac surgery patient and then into an institutional model for the development of other clinical pathways. This evolution leads to meet with the missions and strategic objectives of the Institution and some national projects. The process of this approach weaves a horizontal and vertical grid. The multidisciplinary membership, supported by medical and nursing leadership and the institutional support, will determine the sustainability of this project. [less ▲]

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See detailBiomarker for osteoarthritis and/or other ageing-related diseases, and use thereof
Henrotin, Yves ULg; Gharbi, Myriam; DEBERG, Michelle ULg et al

Patent (2014)

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See detailModélisation numérique de la localisation des déformations dans le béton avec un modèle de second gradient
Jouan, Gwendal ULg

Doctoral thesis (2014)

Cette thèse porte sur l’utilisation d’un modèle de second gradient pour les problèmes de localisation dans le béton. La localisation des déformations est un phénomène courant dans les solides qui ont subi ... [more ▼]

Cette thèse porte sur l’utilisation d’un modèle de second gradient pour les problèmes de localisation dans le béton. La localisation des déformations est un phénomène courant dans les solides qui ont subi des chargements importants et qui mène progressivement à la fissuration du milieu. D’un point de vue pratique, il importe de prévoir la possible occurrence de tels phénomènes et de simuler le comportement de la structure après son apparition (on parlera alors de comportement post-localisation). Pour modéliser de façon objective ce phénomène, le modèle dit de second gradient «local», cas particulier des milieux à microstructure, est ici appliqué à des structures en béton. Le comportement du modèle est étudié pour des essais représentatifs de telles structures (poutre en flexion, propagation de fissures en mode I). Certaines limitations du modèle dans le cas de localisations importantes des déformations sont mises en évidence et on propose la transition vers un modèle cohésif afin de décrire l’ensemble du processus de fissuration. Ce modèle cohésif et la transition depuis la description continue sont formulés et implémentés dans un code de calcul éléments finis. [less ▲]

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See detailAnalyse des facteurs de perception du risque de mauvaise localisation de la tumeur par les travailleurs dans un service de radiothérapie
Kamto Kenmogne, Marius ULg

Conference (2014, July 08)

A la suite des scandales médicaux de Toulouse et d’Epinal, la sécurité des soins en radiothérapie a connu un intérêt croissant. En même temps qu’une réglementation plus exigeante est émise, des méthodes ... [more ▼]

A la suite des scandales médicaux de Toulouse et d’Epinal, la sécurité des soins en radiothérapie a connu un intérêt croissant. En même temps qu’une réglementation plus exigeante est émise, des méthodes de gestion de risques issues de l’industrie sont expérimentées et les résultats des expériences publiés. Toutefois, ces méthodes sont souvent basées sur des hypothèses à priori sur le comportement humain et aucune n’analyse spécifiquement comment les risques sont évalués par les divers acteurs et groupes d’acteurs intervenant dans le processus de prise en charge du patient. Le présent article fournit les résultats d’une étude empirique analysant les facteurs psychologiques expliquant les différences de perception du risque de mauvaise localisation par les travailleurs d’un service de radiothérapie. Il démontre que les médecins qualifiés d’experts minimisent ce risque en s’appuyant d’une part sur leur connaissance de la fréquence de réalisation du risque et des conséquences pour le patient et d’autre part sur leur expérience et leurs compétences pour le prévenir et le réduire. Le personnel d’administration qualifié de profane ne s’estime pas concerné par ce risque. Bien que beaucoup le considèrent comme élevé, ils n’ont pas d’avis sur les différents facteurs de perception proposés dans le cadre d’analyse de Slovic. [less ▲]

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See detailL'hôpital, une entreprise comme les autres ? Oui, mais ...
Van Caillie, Didier ULg

Conference (2014, July 07)

A l’instar d’une entreprise industrielle, l’hôpital actuel présente les caractéristiques suivantes, quel que soit son statut ou sa localisation : Il est constitué d’un ensemble de ressources rares et ... [more ▼]

A l’instar d’une entreprise industrielle, l’hôpital actuel présente les caractéristiques suivantes, quel que soit son statut ou sa localisation : Il est constitué d’un ensemble de ressources rares et limitées, de nature humaines, techniques, financières et immatérielles (savoirs et connaissances), dont il doit justifier d’une utilisation efficiente (en clair, maximiser le rapport output/coût) en regard des attentes diverses et parfois contradictoires de ses différentes parties prenantes (patients, collaborateurs, autorités de financement, autorités de contrôle) s’il veut remplir le rôle de création de valeur sociétale naturellement dévolu à toute organisation. En terme managérial, son défi quotidien est de : Gérer de manière coordonnée des flux multiples (flux des patients physiques, objets des soins ; flux des médicaments et des traitements, nécessaires à la fluidité du flux des patients ; flux d’information, traduction virtuelle des patients physiques nécessaire lui aussi à la fluidité du flux des patients) dans un souci permanent d’efficience multiple : garantir le bon soin au bon patient au bon moment avec l’information suffisante, les médicaments et l’infrastructure adéquate, le tout, au moindre coût. Simultanément, coordonner en permanence l’ensemble des ressources humaines, matérielles et financières de l’organisation, et surtout motiver la principale ressource critique, l’ensemble des collaborateurs (corps médical, corps infirmier, corps technicien de support, corps de support à la gestion), en résolvant de manière continue les défis quotidiens d’une bonne communication interpersonnelle (dans et entre les services), d’une motivation individuelle alignée sur les besoins et les attentes de l’organisation et d’une parfaite coordination avec les attentes du patient. [less ▲]

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See detailThe paleoearthquake record of the Cinarcık Segment of the North Anatolian Fault in the Marmara Sea (Turkey) and its implication regarding past historical rupture scenario across the Marmara Sea
Hubert, Aurelia ULg; Drab, Laureen; Albini, P et al

Poster (2014, July 07)

Istanbul and its 12 million inhabitants borders the Marmara Sea, a submarine pull-apart basin related to the North Anatolian Fault (NAF), a major strike slip fault that ruptures in M>7 earthquakes ... [more ▼]

Istanbul and its 12 million inhabitants borders the Marmara Sea, a submarine pull-apart basin related to the North Anatolian Fault (NAF), a major strike slip fault that ruptures in M>7 earthquakes. Constraining the recurrence rate of M>7 earthquakes that threaten the megacity is problematic because the active faults are submarine. For assessing past submarine earthquake ruptures of the Cinarcik Fault Segment located just south of Istanbul, we studied two sedimentary cores and identified seismoturbidites related to historical ruptures. Earthquake related turbidites are identified in both cores, based on their distinctive sedimentological and geochemical signatures. The seismoturbidites recorded in one of the core named Klg04 are inferred to record only mass wasting events related to the rupture on the Cinarcik Segment because of its specific geomorphological location. To constrain the seismoturbidites chronology, we combine short-lived radionuclide, radiocarbon and paleoinclination data. The first four seismoturbidites recorded match the 1894, 1509, 14th century and 989 historical earthquakes. The obtained age model allows us to discuss past historical rupture scenario across the Marmara Sea. The fact that the 1766 earthquakes are not recorded is further discussed based on new macroseismic intensity data and sedimentary records East of the Cinarcik Basin. [less ▲]

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See detailThe endocrine milieu and CD4 T-lymphocyte polarization during pregnancy
Polese, Barbara ULg; Gridelet, Virginie ULg; Arakioti, Eleni et al

in Frontiers in Endocrinology (2014), 5(Article 106), 1-11

Acceptance of the fetal semi-allograft by the mother’s immune system has become the focus of intensive research. CD4+ T cells are important actors in the establishment of pregnancy. Th1/Th2 paradigm has ... [more ▼]

Acceptance of the fetal semi-allograft by the mother’s immune system has become the focus of intensive research. CD4+ T cells are important actors in the establishment of pregnancy. Th1/Th2 paradigm has been expanded to include CD4+ regulatory T (Treg) and T helper 17 (Th17) cells. Pregnancy hormones exert very significant modulatory properties on the maternal immune system. In this review, we describe mechanisms by which the endocrine milieu modulates CD4 T cell polarization during pregnancy. We first focused on Treg and Th17 cells and on their importance for pregnancy. Secondly, we review the effects of pregnancy hormones [progesterone (P4) and estradiol (E2)] on immune cells previously described, with a particular attention to human chorionic gonadotropin (hCG). The importance of Treg cells for pregnancy is evidenced. They are recruited before implantation and are essential for pregnancy maintenance. Decreased number or less efficient Treg cells are implicated in fertility disorders. As for Th17 cells, the few available studies suggest that they have a negative impact on fertility. Th17 frequency is increased in infertile patients. With the combination of its pro-effects on Th2 and Treg cells and anti-effects on Th1 and Th17 cells, P4 contributes to establishment of a favorable environment for pregnancy. E2 effects are more dependent on the context but it seems that E2 promotes Treg and Th2 cells while it inhibits Th1 cells. hCG positively influences activities of Treg and uterine natural killer cells. This embryo signal is an essential actor for the success of pregnancy, both as the endocrine factor regulating P4 secretion by the ovarian corpus luteum, but also as a paracrine agent during implantation as well as an angiogenic and immunologic mediator during the course of gestation. Luteinizing hormone (LH) immune properties begin to be studied but its positive impact on Treg cells suggests that LH could be a considerable immunomodulator in the mouse. [less ▲]

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See detailWhat Can Law Learn From Behavioural Sciences?
Sibony, Anne-Lise ULg

Scientific conference (2014, July 07)

What can law learn from behaviorual sciences? This conference will adress the question starting with examples from consumer law and consumer psychology. It wil cover methodological issues of ... [more ▼]

What can law learn from behaviorual sciences? This conference will adress the question starting with examples from consumer law and consumer psychology. It wil cover methodological issues of interdisciplinary legal scholarship, focussing in particular on the types of statements law can usefully borrow from science and how it can make sensible use of them. [less ▲]

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See detailTaking Cadaveric Decomposition Chemistry out of Flatland
Stefanuto, Pierre-Hugues ULg; Perrault, K; Stadler, S et al

Conference (2014, July 07)

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See detailInfluence of players' level on racket speed and ball accuracy in the tennis serve
Tubez, François ULg; Croisier, Jean-Louis ULg; Cordonnier, Caroline ULg et al

Conference (2014, July 06)

INTRODUCTION Serve in modern tennis game is an important offensive weapon for players (1-2). In kinematic analysis, serve is the most studied stroke of this game. The aim of our study was to compare the ... [more ▼]

INTRODUCTION Serve in modern tennis game is an important offensive weapon for players (1-2). In kinematic analysis, serve is the most studied stroke of this game. The aim of our study was to compare the performance of two specific populations: international players versus national players. In particular, racket speed at impact and accuracy of ball were assessed. METHODS A tennis court was reconstructed in a motion analysis laboratory. The position of the racket was evaluated in 3D at a frequency rate of 200 Hz. Tests were performed on 6 professional players (international level) and 9 non-professional players (national level). Each of them served 25 trials in direction of the “T” area of deuce diagonal. Two squares of 1m² and 2 m² respectively were delimited on the corner of the serve square. The instruction for both groups was to serve in the “T” area with the highest ball speed and minimal ball rotation (flat serve). RESULTS Although the forward speed of the racket at impact was identical between the two groups of players (International 36.35 ± 2.37 m/s and national 36.37 ± 2.90 m/s, p-value 0,991), the accuracy and consistency of serves on the target area is better for international players group (1m² area: International 33% ± 7% and national 14% ± 12%, p-value 0.0053; 2m² area (including 1m² area): International 71% ± 8% and national 54% ± 12%, p-value 0.0096; Out of zone: International 29% ± 8% and national 46% ± 12%, p-value 0.014). DISCUSSION High-velocity ball seems to be a key factor for serve performance (3). It is known that there is a relationship between racket speed and ball velocity (4). Both groups have high racket speed. However, international players serve with better accuracy and consistency than national players. We hypothesize that these differences are due to capacity of international players to adapt to a particular environment. Moreover, international players could give priority to consistency over velocity. We conclude that high-velocity serve is not a sufficient criterion to perform at international level; consistency and accuracy are two important factors to reach this level. [less ▲]

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See detailIslands as reference stations for environmental studies: the case of Calvi Bay in Corsica
Abadie, Arnaud ULg; Gobert, Sylvie ULg; Lejeune, Pierre

Conference (2014, July 05)

Islands are subject to human activities and their impacts on land and marine ecosystems. They are also often isolated from some of the continental influences but on the other hand different kind of human ... [more ▼]

Islands are subject to human activities and their impacts on land and marine ecosystems. They are also often isolated from some of the continental influences but on the other hand different kind of human activities can be concentrated in small areas. These characteristics make possible the management of many programs that use whole islands, or some of their parts, as a reference station for environmental studies. From this perspective, the program STARE-CAPMED has begun in 2012 at STARESO, an oceanographic research station established at Calvi Bay (Corsica) since the early 70’s. It aims to create a reference station for the study of emerging local and global anthropogenic impacts on marine pristine ecosystems. Several universities are involved in this project and provide their expertise in various fields of marine sciences. This program provides a precise view of the environmental processes that occur, which are strongly linked with economic and cultural issues. [less ▲]

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See detailLe roi Léopold et la Commission nationale des sciences
Pirot, Pascal ULg

Conference (2014, July 05)

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See detailChinua Achebe's Arrow of God: More Questions than Answers?
Tunca, Daria ULg

Conference given outside the academic context (2014)

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See detailInsect pests occurring on Dacryodes edulis (Burseraceae) in rural areas in Gabon
Poligui, René Noël ULg; MOUARAGADJA, ISAAC; Vandereycken, Axel ULg et al

in Neotropical Entomology (2014), 43(4), 322-334

The inventory of pests occurring on Dacryodes edulis (Burseraceae) was carried out in rural areas in Gabon during 2009 and 2010. Yellow traps and visual observations were used to record weekly pests ... [more ▼]

The inventory of pests occurring on Dacryodes edulis (Burseraceae) was carried out in rural areas in Gabon during 2009 and 2010. Yellow traps and visual observations were used to record weekly pests during the tree flowering stage, in five villages. Catches from yellow traps rose to 7,296 and 1,722 insect pests in 2009 and 2010, respectively, whereas records from visual observations corresponded to 1,812 and 171 insect pests in 2009 and 2010, respectively. During both years, abundance from traps and visual monitoring was significantly different between sampling sites (p<0.05). The difference in pests’ diversity between sampling sites was not significant (p>0.05) according to traps, but significant (p≤0.04) according to visual observations in 2010. Mecocorynus loripes Chevrolat (Coleoptera: Cucurlionidae) attacked the stem of D. edulis, while Oligotrophus sp. (Diptera: Cecidomyiidae), Pseudophacopteron serrifer Malenovsky and Burckhardt (Hemiptera: Phacopteronidae), and Selenothrips rubrocinctus Giard (Thysanopera: Thripidae) attacked leaves. Pseudonoorda edulis Maes and Poligui (Lepidoptera: Crambidae) and Lobesia aeolopa Meyrick (Lepidoptera: Tortricidae) infested fruits and inflorescences, respectively. These insects are specifically linked to plant patterns, and their identification provided the first basic information for developing suitable strategies to control pests of D. edulis in Gabon, as well as in neighboring central African countries. [less ▲]

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