Staphylolytic Enzyme from Chalaropsis: Mechanism of Action; ; Ghuysen, Jean-Marie ![]() in Science (1964), 146 The staphylolytic enzyme recently isolated from cultures of a Chalaropsis species by Hash is shown to be an acetylmurainidase that cleaves all the glycosidic linkages of N-acetylmuramic acid and N,O ... [more ▼] The staphylolytic enzyme recently isolated from cultures of a Chalaropsis species by Hash is shown to be an acetylmurainidase that cleaves all the glycosidic linkages of N-acetylmuramic acid and N,O-diacetylmuramic acid in the cell wall of Staphylococcus aureus strain Copenhagen. It is similar in specificity to the "32 enzyme" from Streptomyces albus but it differs from egg-white lysozyme whose activity is inhibited by the presence of O-acetyl groups. [less ▲] Detailed reference viewed: 7 (0 ULg) STAR Development and Protocol Comparison; ; et al in IEEE Transactions on Biomedical Engineering (2012) Detailed reference viewed: 4 (1 ULg) Stare-Capmed : Présentation générale du projet et exemple d'une action : "Impact de l'ancrage sur la dynamique des herbiers de posidonies".Michel, Loïc ; Champenois, Willy ; Borges, Alberto et alConference (2012, May 16) STARE-CAPMED (STAtion of Reference and rEsearch on Change of local and global Anthropogenic Pressures on Mediterranean Ecosystems Drifts) est un projet de recherche mis en place par Stareso S.A.S. depuis ... [more ▼] STARE-CAPMED (STAtion of Reference and rEsearch on Change of local and global Anthropogenic Pressures on Mediterranean Ecosystems Drifts) est un projet de recherche mis en place par Stareso S.A.S. depuis janvier 2012. Il a pour objectif d’établir un site de référence à long terme pour la compréhension, par la recherche fondamentale, des processus de l’évolution des écosystèmes méditerranéens côtiers et océaniques en réponse aux changements actuels globaux et locaux des pressions anthropiques. Centré sur la Baie de Calvi et le proche large, il vise à fournir un référentiel basé sur des mesures à haute fréquence qui doivent pouvoir complémenter les réseaux de surveillance basse fréquence et de recherches existants et ainsi faire progresser la compréhension des processus. En outre, le projet doit fournir aux utilisateurs finaux (collectivités locales et régionales, administrations nationales, ...) des orientations de gestion basées sur l’analyse étayée des processus en jeux. Financé par l’Agence de l’eau RMC et la Collectivité Territoriale de Corse, le projet, multidisciplinaire, se décline actuellement selon 10 axes de travail : • Suivi du cadre hydrographique et physico-chimique • Suivi et quantification des pressions anthropiques • Ecosystème planctonique • Benthos de substrat meuble • Benthos de substrat dur et faune vagile • Phanérogames marines et écosystèmes associés • Mouillages et processus d’altération des herbiers de posidonies • Ecotoxicologie et polluants émergents • Bilan CO2 et métabolisme des écosystèmes • Zones protégées, espèces nouvelles, recrutement Pour chacun de ces axes, la stratégie d’échantillonnage est basée sur la comparaison de données obtenues durant des périodes où l’impact anthropique est faible (octobre-avril) avec celles obtenues durant des périodes de pression intense (mai-septembre), et sur la comparaison de données issues de sites de référence peu impactés avec celles provenant de sites où l’impact anthropique est reconnu. A titre d’exemple, le but de l’action "Mouillages et processus d’altération des herbiers de posidonies" est de mettre en évidence les conséquences des altérations liées à l’arrachage de faisceaux de posidonies sur la vitalité de l’herbier. Des zones où la pression de mouillage est reconnue seront définies sur base des travaux de cartographie de l’herbier, également réalisés dans le cadre du projet STARE-CAPMED. Elles seront comparées avec des zones d’herbiers sains témoins par la caractérisation du sédiment (mesures de compacité in situ, mesures des concentrations en O2 et nutriments et du pH de l’eau interstitielle, granulométrie et teneur en matière organique du sédiment, proportions de rhizomes et morts) ainsi que par la définition de l’état physiologique des faisceaux de posidonies (mesures biométriques classiques, analyses des contenus élémentaires en carbone, azote et phosphore) et par l’application d’indices écologiques définis par la DCE (PREI, BIPO, …). Les résultats obtenus permettront d’avoir une vue d’ensemble des processus par lesquels l’impact physique des mouillages de bateaux de plaisance occasionne des dégâts aux herbiers de posidonies. Ils pourront ainsi fournir une base de connaissances solide aux gestionnaires soucieux de limiter cet impact. [less ▲] Detailed reference viewed: 94 (15 ULg) STARESO, la station de recherches sous-marines et océanographiques de l'Université de Liège (présentation détaillée)Goffart, Anne ; Diverse speeche and writing (2009) Detailed reference viewed: 20 (4 ULg) STARESO, the marine and oceanographic research station of the University of Liège in CorsicaGoffart, Anne ![]() Diverse speeche and writing (2011) Generic presentation of STARESO, the marine and oceanographic research station of the University of Liège in Corsica. Detailed reference viewed: 31 (7 ULg) Stars et médias : la construction médiatique de Michael JacksonHabrand, Tanguy ![]() Conference given outside the academic context (2010) Detailed reference viewed: 6 (1 ULg) Stars in the eyes, birth of a vocation ?Nazé, Yaël ![]() in Astrophysics, and How to Attract Young People into Physics (2005, November 01) It is generally difficult to interest people to sciences, especially physics. However, astronomy has a great power of fascination, and can thus be used to attract people into the scientific world. Here in ... [more ▼] It is generally difficult to interest people to sciences, especially physics. However, astronomy has a great power of fascination, and can thus be used to attract people into the scientific world. Here in Liège, we are trying to develop several different aspects of astro-education: they will be detailed in this paper. For example, we organize interactive activities for primary schools, and also help high school students to consider a scientific career. Our undergraduate students also benefit from our experience: for example, they have the possibility to observe at a real observatory, they can train at ESA facilities,... The general public is also invited to discover astronomy and, through it, physics, thanks to several specific events. Finally, media, the links between the public and the researchers, are not forgotten: our astro-news service was specifically created for this purpose. [less ▲] Detailed reference viewed: 8 (3 ULg) A “start to swim” program for health-enhancement purpose: a Delphi studyMouton, Alexandre ; ; Cloes, Marc ![]() Conference (2012, July) Introduction Popularity of “start to run” or “start to cycle” programs increases with the evidence that regular physical activity contributes to the prevention and management of a wide range of chronic ... [more ▼] Introduction Popularity of “start to run” or “start to cycle” programs increases with the evidence that regular physical activity contributes to the prevention and management of a wide range of chronic diseases (Rippe and Angelopoulos, 2010). Nevertheless, start to swim programs could lead to even more health-enhancing outcomes (Chase et al., 2008). The aim of this study was to obtain a “start to swim” model program by means of a two-round Delphi study. Methods In the first round, 10 key-experts in sport physiology (n=4) or in swimming coaching (n=6) outlined possible relevant components of the “start to swim” program in a semi-structured interview. Initial exclusion criterion, program set-up, program key principles, program progression and final goals were interrogated. Then, a facilitator provided an anonymous summary of the experts’ suggestions from the previous round as well as the arguments they provided for their choice. In the second round, experts were asked to comment on this summary before providing a final form to this program. Results After two rounds, the experts agreed on a collective and coached intervention with 2 sessions per week and a progressive replacing of the coach by a group leader during a 4 months program. People without medical contraindication and able to swim 25 meters could take part to this program. The final goal-setting is personal and based on each individual progression and motivation. Sessions are endurance-oriented and divided between traditional swimming sessions and diversified aquatic activities. In order to support this active lifestyle in a long-term basis, referring to swimming clubs or other aquatic activities associations are performed by the coach at the end of the program. Discussion The start to swim program take into consideration behavioural and social aspects necessary for a successful adoption and maintenance of physical activity (Khan et al, 2002). Consistent with previous findings, a group-based program (Cox et al., 2008) with individually adapted-goals (Marcus and Forsyth, 2003) could lead to a long-term adherence to exercise. Future studies should include systematic evaluation of the “start to swim” program before translation into the community. [less ▲] Detailed reference viewed: 42 (11 ULg) Starters pour la charcuterie; ; Thonart, Philippe ![]() in Viande et Bien-être = Vlees en Welzijn (1991), (2), 3-7 Detailed reference viewed: 5 (1 ULg) Stat5 Is an Ambivalent Regulator of Neutrophil HomeostasisFievez, Laurence ; Desmet, Christophe ; et alin PLoS ONE (2007), 2(1), 727 Although STAT5 promotes survival of hematopoietic progenitors, STAT5-/- mice develop mild neutrophilia. METHODOLOGY/PRINCIPAL FINDINGS: Here, we show that in STAT5-/- mice, liver endothelial cells (LECs ... [more ▼] Although STAT5 promotes survival of hematopoietic progenitors, STAT5-/- mice develop mild neutrophilia. METHODOLOGY/PRINCIPAL FINDINGS: Here, we show that in STAT5-/- mice, liver endothelial cells (LECs) autonomously secrete high amounts of G-CSF, allowing myeloid progenitors to overcompensate for their intrinsic survival defect. However, when injected with pro-inflammatory cytokines, mutant mice cannot further increase neutrophil production, display a severe deficiency in peripheral neutrophil survival, and are therefore unable to maintain neutrophil homeostasis. In wild-type mice, inflammatory stimulation induces rapid STAT5 degradation in LECs, G-CSF production by LECs and other cell types, and then sustained mobilization and expansion of long-lived neutrophils. CONCLUSION: We conclude that STAT5 is an ambivalent factor. In cells of the granulocytic lineage, it exerts an antiapoptotic function that is required for maintenance of neutrophil homeostasis, especially during the inflammatory response. In LECs, STAT5 negatively regulates granulopoiesis by directly or indirectly repressing G-CSF expression. Removal of this STAT5-imposed brake contributes to induction of emergency granulopoiesis. [less ▲] Detailed reference viewed: 86 (39 ULg) STAT5 is an Ambivalent Regulator of Neutrophil HomeostasisFievez, Laurence ; Desmet, Christophe ; et alPoster (2007) Detailed reference viewed: 13 (9 ULg) STAT5 promotes granulocyte survival during inflammationFievez, Laurence ; Desmet, Christophe ; et alin Pflügers Archiv : European Journal of Physiology (2004), 447 Detailed reference viewed: 26 (4 ULg) STAT5 promotes granulocyte survival during inflammationFievez, Laurence ; Desmet, Christophe ; et alPoster (2003) Detailed reference viewed: 2 (0 ULg) STAT5 promotes granulocyte survival during inflammationFievez, Laurence ; Desmet, Christophe ; et alin Proceedings: The American Thoracic Society (2005) Detailed reference viewed: 5 (0 ULg) STAT5 promotes granulocyte survival during lung inflammationFievez, Laurence ; Desmet, Christophe ; et alin Proceedings: 22nd Symposium of the Veterinary and Comparative Respiratory Society (2004) Detailed reference viewed: 23 (8 ULg) State complexity of testing divisibilityCharlier, Emilie ; Rampersad, Narad ; Rigo, Michel et alin McQuillan, Ian, Pighizzini, Giovanni (Ed.) Proceedings Twelfth Annual Workshop on Descriptional Complexity of Formal Systems (2010, August) Under some mild assumptions, we study the state complexity of the trim minimal automaton accepting the greedy representations of the multiples of m>=2 for a wide class of linear numeration systems. As an ... [more ▼] Under some mild assumptions, we study the state complexity of the trim minimal automaton accepting the greedy representations of the multiples of m>=2 for a wide class of linear numeration systems. As an example, the number of states of the trim minimal automaton accepting the greedy representations of mN in the Fibonacci system is exactly 2m^2. [less ▲] Detailed reference viewed: 46 (18 ULg) State of current therapy and patient care in Europe.Lefebvre, Pierre ; Scheen, André ![]() in International Journal of Clinical Practice. Supplement (1999), 107 Detailed reference viewed: 5 (0 ULg) The State of Environmental Migration 2011Gemenne, François ; ; Report (2012) Detailed reference viewed: 4 (2 ULg) The state of Integration in Europe and Stories from the Grass RootsMartiniello, Marco ![]() Scientific conference (2006, April 25) Detailed reference viewed: 9 (0 ULg) |
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