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See detailIdentification des critères associés à la qualité des instructeurs d'aérobic. Comparaison des avis des clients et des intervenants
Cloes, Marc ULg; Laraki, Nadia; Zatta, Sandro et al

Poster (2000, December)

Leisure physical activities are becoming more and more important in the modern society. Fitness instructors needs specific competencies that it is interesting to identify. This is the goal of this study ... [more ▼]

Leisure physical activities are becoming more and more important in the modern society. Fitness instructors needs specific competencies that it is interesting to identify. This is the goal of this study that compared opinions of clients and instructors. [less ▲]

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See detailIdentification des dommages aux portes de l'écluse de Havré : Canal du Centre
Pire, Timothée ULg

Master's dissertation (2014)

This work is about the identification of damage on sluices in Havré. A thorough study being already carried out on intermediate and downstream sluices, this report is about the upstream sluice. It is a ... [more ▼]

This work is about the identification of damage on sluices in Havré. A thorough study being already carried out on intermediate and downstream sluices, this report is about the upstream sluice. It is a miter gate on which several damage were noticed in 2004. Indeed, it shows some cracks, a door panel is twisted and some supports of knocker are worn. The origin of this damage is not found out yet. The goal of this work is so to determine the load cases that caused the listed damage. Therefore, the structure and the loads are modeled within the finite elements software Ansys. The analyse shows that, when the sluice is closed and withstands the hydrostatic pressure, the internal efforts are much lower than the resistance of the sluice. Contrariwise, stress peaks appear during opening and closing phases. Moreover, these peaks are located on weldings. A verification to fatigue shows that the life expectancy under normal maneuver loads is about 20 years while this sluice is being working for 40 years. The main load during the maneuvers is due the variation of water level either side of the sluice. This variation is taken equal to 10 cm in documents, but measures shows it can be greater. The twisting is certainly due to a blocking of the sluice during an opening and an oversizing of the cylinder. Eventually, the wear of knocker is due to maladjustment. Following this identification of damage, some proposition of reinforcement are proposed to increase the life expectancy up to 50 years. The modifications of the structure are related to the position of weldings, to sheet thickness, to the geometry of connections between cross rails and munions and to an increase of the steel grade. [less ▲]

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See detailIdentification des indicateurs de dégradation de la forêt de tapia (Uapaca bojeri) par une analyse sylvicole
Rakotondrasoa, Olivia Lovanirina; Malaisse, François ULg; Rajoelison, Gabrielle Lalanirina et al

in Verheggen, François; Bogaert, Jan; Haubruge, Eric (Eds.) Les vers à soie malgaches : Enjeux écologiques et socio-économiques (2013)

Deforestation is a serious problem in Madagascar leading to natural resource degradation. In this context, this study aims to identify indicators of forest degradation for the tapia forest of Arivonimamo ... [more ▼]

Deforestation is a serious problem in Madagascar leading to natural resource degradation. In this context, this study aims to identify indicators of forest degradation for the tapia forest of Arivonimamo. A forest map of the area consists of a document in which the forest is stratified into two types: degraded tapia forest and highly degraded tapia forest. The approach consisted of the comparison of these two types of forest, the degraded tapia being the reference. Data collection was based on a forest inventory through discontinuous transects related to the structure of the tapia forest, with a total length of 1,500 m per type. It appears that tree density, average tree height, average tree diameter, basal area and density of regeneration and undergrowth, are indicators for the identification of the state of degradation of the tapia forest. The distribution of U. bojeri is aggregated in both sites; however, the degree of aggregation is significantly higher in the highly degraded forest in response to the lower tree density. Leptolaena pauciflora and Erica sp. are the main undergrowth indicator species of degradation; their abundance is correlated with degradation. Knowledge of these indicators of tapia degradation will provide guidance and technical tools to improve evaluation and monitoring of the degradation of the tapia forest. [less ▲]

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See detailIdentification des indicateurs de dégradation de la forêt de tapia (Uapaca bojeri) par une analyse sylvicole
Rakotondrasoa, OL; Malaisse, François ULg; Rajoelison, G et al

in Tropicultura (2013), 31(1), 10-19

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See detailIdentification des localisations optimales des activités économiques
Bastin, A.; Guillaume, N.; Hiligsman, S. et al

Report (2007)

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See detailIdentification des localisations optimales des activités économiques locales
Bastin, A.; Chevau, T.; Hiligsman, S. et al

Report (2008)

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See detailIdentification des menaces sur la diversité floristique des pelouses calcicoles de Belgique et opportunités pour la restauration : de l'espèce au paysage
Piqueray, Julien ULg

Doctoral thesis (2010)

Current human activities can be responsible either of the loss or promotion of biodiversity at the regional scale. The study of the influence of human activities on patterns of biological diversity is ... [more ▼]

Current human activities can be responsible either of the loss or promotion of biodiversity at the regional scale. The study of the influence of human activities on patterns of biological diversity is therefore of primary importance in order to set up conservation strategies. We studied the influence of human activities on calcareous grassland floristic diversity in Belgium. During the past century, a high fragmentation of this habitat occurred within the study region. There was a delay between the process of fragmentation and the subsequent response in terms of species richness, which created an “extinction debt” in remnant calcareous grasslands. Although fragmentation was the main process involved, we also showed that some new habitat patches were created thanks to human activities during this period. These new habitat patches exhibited a species richness and composition that was found similar to old habitat patches. In the face of fragmentation, restoration programs were launched in the study region. Restored areas exhibited similar soil conditions as compared to reference grasslands. Plant species communities found in the oldest restorations tend to resemble reference grassland communities. However, some differences in species composition persisted after 15 years. It was also shown that some species did not colonize restored sites at all. With this respect, seed and germination microsite availability could be limiting factors for the colonization of restored sites. However, the absence or the lower colonization in restored areas compared to reference grasslands following seed addition and disturbance suggested that habitat quality could be considered as lower in restored habitats. Our results suggest therefore that restoration effort should be maintain in the study site. This effort is not vain as many species are able to colonize newly created sites. Finally, another threat to calcareous grasslands was studied i.e. the naturalization of the ornamental species Cotoneaster horizontalis. The analysis revealed that, although being at an early stage of naturalization, the species had an impact on vegetation structure and composition and on grassland diversity. Trade limitation for this species should be promoted in addition to management. [less ▲]

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See detailIdentification des objectifs et finalités de la formation des diplômés en éducation physique. Comparaison des situations algérienne et belge francophone
Kerfes, Nabil; Cloes, Marc ULg

in Amans-assaga, Christine; Gal-Petitfaux, Nathalie; Terral, Philippe (Eds.) et al L'intervention en sport et ses contextes institutionnels: cultures et singularité de l'action (2010, May)

Toute formation supérieure a ses principes et ses particularités visant à développer des compétences en relation avec les finalités professionnelles disponibles. La formation des éducateurs est l'une des ... [more ▼]

Toute formation supérieure a ses principes et ses particularités visant à développer des compétences en relation avec les finalités professionnelles disponibles. La formation des éducateurs est l'une des préoccupations majeures de toutes les sociétés cherchant le progrès et le développement. Ce travail se situe dans le champ de l'éducation comparée, il propose une lecture compréhensive de deux systèmes de formation dans un esprit d'ouverture et d'élargissement des connaissances. ... [less ▲]

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See detailIdentification des paramètres mécaniques des sols par analyse inverse sur des essais et ouvrages géotechniques
Levasseur, Séverine ULg

in XXVèmes Rencontres de l'Association Universitaire de Génie Civil (AUGC) (2007)

Cet article est consacré à l’identification des paramètres du modèle constitutif de sol Mohr-Coulomb à partir du déplacement horizontal d’un mur de soutènement. Une analyse inverse basée sur un algorithme ... [more ▼]

Cet article est consacré à l’identification des paramètres du modèle constitutif de sol Mohr-Coulomb à partir du déplacement horizontal d’un mur de soutènement. Une analyse inverse basée sur un algorithme génétique est proposée. Cette méthode d’optimisation robuste identifie rapidement un ensemble de solutions autour de l’optimum. Cet ensemble est ensuite décrit par une analyse en composantes principales. Cette nouvelle technique d’optimisation combinant un algorithme génétique et une analyse en composantes principales permet de définir sous forme d’un ellipsoïde l’ensemble des solutions caractéristiques des propriétés mécaniques du sol. [less ▲]

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See detailIdentification des paramètres mécaniques des sols par analyse inverse sur des ouvrages de soutènement
Levasseur, Séverine ULg

in European Journal of Environmental and Civil Engineering [=EJECE] (2008), 12(4), 367-385

Cet article est consacré à l’identification des paramètres du modèle constitutif de sol Mohr-Coulomb à partir du déplacement horizontal d’un mur de soutènement. Une analyse inverse basée sur un algorithme ... [more ▼]

Cet article est consacré à l’identification des paramètres du modèle constitutif de sol Mohr-Coulomb à partir du déplacement horizontal d’un mur de soutènement. Une analyse inverse basée sur un algorithme génétique est proposée. Cette méthode d’optimisation robuste identifie rapidement un ensemble de solutions autour de l’optimum. Cet ensemble est ensuite décrit par une analyse en composantes principales. Cette nouvelle technique d’optimisation combinant un algorithme génétique et une analyse en composantes principales permet de définir sous forme d’un ellipsoïde l’ensemble des solutions caractéristiques des propriétés mécaniques du sol. [less ▲]

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See detailIdentification des plantes menacées du Burundi par l’analyse de la vulnérabilité.
Sibomana, S; Koffi, K J; Robbrecht, E et al

in Annales de la Faculté des Sciences, Université de Kisangani (2008), 13

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See detailIdentification des risques professionnels dans l’industrie textile en République Démocratique du Congo
Panda Lukongo, Kitronza ULg

in Pan African Medical Journal (The) (2014), 19(373),

Introduction: The aim of this study is to highlight the occupational risk factors related to working conditions in DRC. Methods: The qualitative study was carried out by a multidisciplinary team in the ... [more ▼]

Introduction: The aim of this study is to highlight the occupational risk factors related to working conditions in DRC. Methods: The qualitative study was carried out by a multidisciplinary team in the textile industry of the north-eastern DRC, including an occupational physician, a public health physician, a toxicologist, two nursing from the center hospital plant, a representative of health committee and a prevention technician. The methodological approach consisted of interviews, observations and guided visit of workplace of the company. Results: In cotton, the effects of high exposure to pesticides can cause acute poisoning, chronic and even death. Other risks include accidents, occupational diseases, and psychological disorders. In industry, workers are exposed to risks associated with dusting of cotton fibers, traumatic risk factors, physical (noise, vibration) and chemical (strong acids, bases, solvents and inorganic dyes ) as well as factors related to the environment of the workplace including psychosocial. The environmental pollution and ecotoxicity are a result of the use of great quantities of agricultural inputs, fertilizers and pesticides. Conclusion: This study has highlighted the various risk factors that are subject textile workers and the environmental risks associated with this activity. This will allow the establishment of an effective strategy of prevention and protection. [less ▲]

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See detailIDENTIFICATION DES SERIES DE CONSERVATION DE L’UFA 11.005.
Doucet, Jean-Louis ULg; Kuzong, Etienne

Report (2009)

Detailed reference viewed: 22 (3 ULg)
See detailIdentification des sirtuines en tant que nouvelles cibles thérapeutiques pour l'asthme allergique
Legutko, Agnieszka ULg

Doctoral thesis (2012)

Sirtuins comprise a unique class of NAD+-dependent deacetylases that regulate diverse biological functions including ageing, metabolism and stress resistance. Recently, it has been shown that sirtuins may ... [more ▼]

Sirtuins comprise a unique class of NAD+-dependent deacetylases that regulate diverse biological functions including ageing, metabolism and stress resistance. Recently, it has been shown that sirtuins may dampen the inflammatory response in vitro by inhibiting pro-inflammatory transcription factors such as NF-κB. We therefore sought to determine whether sirtuins play a role in allergic airway inflammation. To address this issue, we have assessed in OVA-sensitized mice the effects of selectively antagonizing sirtuins during OVA challenge. Sirtuin inhibition was achieved by treating mice with either cambinol or sirtinol, two selective pharmacological inhibitors. Surprisingly, sirtuin inhibition was associated with strong attenuation of allergic lung inflammation, airway hyperreactivity, production of mucus and Th2 cytokines. We furthermore showed that sirtuin inhibition altered maturation and migration of lung dendritic cells, thereby preventing dendritic cell-driven Th2 priming in the draining lymph nodes. In an attempt to elucidate the mechanisms responsible for these effects we used peroxisome proliferator-activated receptor-γ deficient cells to demonstrate that the effects of cambinol and sirtinol in dendritic cells were dependent on an increase in the activity of this anti-inflammatory transcription factor. Finally, using genetic engineering, we demonstrate that sirtuin 1 is the sirtuin responsible for repression of the activity of PPAR-γ- in dendritic cells, thereby favoring their maturation toward a pro-Th2 phenotype. This study reveals a previously unappreciated function of sirtuin 1 in the regulation of dendritic cell function and Th2 responses, thus shedding new light on our current knowledge on the regulation of inflammatory processes by sirtuins. [less ▲]

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See detailIdentification des sites de la transcription des gènes ribosomiques dans le nucléole de la cellule tumorale d'Ehrlich
Thiry, Marc ULg

in Bulletin de l'Association des Anatomistes (1990), 74

Detailed reference viewed: 6 (0 ULg)