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See detailEtude d'art mobilier en laboratoire par des techniques non destructives : analyse par faisceau d'ions et micro-diffraction pour caractériser les pigments préhistoriques et identifier leurs origines. Exemples de l'abri Pataud (Dordogne) et d'Arcy- sur-Cure (Yonne)
Beck, Lucile; Grégoire, Sylvain; Lebon, Matthieu et al

Conference (2011)

Les pigments préhistoriques sont formés à partir de composés naturels tels les d’oxydes de fer ou les oxydes de manganèse. Ils ont été collectés par les hommes préhistoriques dans leur environnement ... [more ▼]

Les pigments préhistoriques sont formés à partir de composés naturels tels les d’oxydes de fer ou les oxydes de manganèse. Ils ont été collectés par les hommes préhistoriques dans leur environnement proche ou parfois à de grandes distances. Connaître leur provenance géographique, ou à défaut établir des relations entre matière première retrouvée en fouille et objets archéologiques décorés, pourraient permettre de retracer la mobilité des populations et d’appréhender les choix techniques opérés ou la mise en place des décors.Ces relations et provenances peuvent être établies à partir de la composition chimique des matériaux employés. Il a été notamment démontré, que pour les obsidiennes ou les minéraux précieux tels les grenats ou les rubis, la nature et la concentration des éléments traces sont caractéristiques des milieux géologiques dans lesquels ils ont été formés. Dans le cadre de Madapca, la même démarche a été appliquée aux pigments préhistoriques. Elle s’appuie principalement sur la méthode d’analyse non destructive PIXE (Particule Induced X-ray Emission) et a été développée pour des pigments provenant des sites d’Arcy sur Cure (Châtelperronien, 32 000 BP) et de l’Abri Pataud (niveau Proto-Magdalénien, 22 000 BP). L’analyse élémentaire des éléments majeurs, mineurs et traces a permis de mettre en évidence des groupes de pigments de composition distincte au sein des niveaux archéologiques étudiés, et donc l’utilisation de sources de matière premières différentes. Dans le cas de l’Abri Pataud (Dordogne), il a été possible d’établir des correspondances entre la composition chimique des blocs de matière première composés d’oxydes de fer et celle des décors peints sur des éléments mobiliers ou sur les écailles ornées provenant de l’effondrement du plafond de l’abri. Dans le cas d’Arcy-sur-Cure (Yonne), nous avons pu montrer que la teneur en éléments traces variaient en fonction de la provenance des blocs de pigments rouges et noirs, trouvés en nombre dans la grotte du Renne. Cette étude démontre l’intérêt des techniques de spectrométrie X pour la différentiation des matériaux colorants utilisés en contexte préhistorique. [less ▲]

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See detailNegations at Medinet Habu
Gillen, Todd Jonathan ULg

Conference (2011)

Detailed reference viewed: 13 (3 ULg)
See detailThe role of galectin-9 splice variants in endothelial cells
Heusschen, Roy ULg; Griffioen, Arjan; Thijssen, Victor

Conference (2011)

Detailed reference viewed: 13 (5 ULg)
See detailOverview of CO2 dynamics within sea ice
Delille, Bruno ULg; Geilfus, Nicolas-Xavier ULg; Vancoppenolle, M. et al

Conference (2011)

Detailed reference viewed: 19 (5 ULg)
See detailCamel Trekking for non motile bacteria
Rigali, Sébastien ULg

Conference (2011)

Detailed reference viewed: 8 (4 ULg)
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See detailLipopeptide production of Pseudomonas cichorii SF154 causing midrib rot on lettuce
Pauwelyn, E.; Ongena, Marc ULg; Hofte, M.

Conference (2011)

Detailed reference viewed: 14 (0 ULg)
See detailLC-MS for metabolomics
Fillet, Marianne ULg

Conference (2011)

Detailed reference viewed: 13 (0 ULg)
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See detailGrasp Generalization Via Predictive Parts
Detry, Renaud ULg; Piater, Justus ULg

Conference (2011)

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See detailThe dual role of weather forecasts on changes in activity-travel behavior
Cools, Mario ULg; Creemers, Lieve; Janssens, Davy et al

Conference (2011)

In previous studies, conflicting results could be found regarding the impact of weather forecasts on travel decisions, e.g. Khattak and De Palma (1997) found no significant effect of acquiring forecasted ... [more ▼]

In previous studies, conflicting results could be found regarding the impact of weather forecasts on travel decisions, e.g. Khattak and De Palma (1997) found no significant effect of acquiring forecasted weather information on the probability of adapting mode and departure time, whereas the results reported by Hagens (2005), Niina (2009) and Kilpelainen and Summala (2007) indicated that weather forecast do play an important role. Therefore this paper investigates the changes in activity-travel behavior in response to weather forecasts. The data for this study is collected by means of a stated adaptation survey, which is both administered on the internet and via a traditional paper and pencil questionnaire. In total, 595 respondents completed the survey. To obtain an optimal correspondence between the true population and the sample weights are assigned to the observation. Results indicate that weather information plays a dual role. On the one hand people do alter their activity-travel behavior in response to weather information, albeit these changes are not as pronounced when compared to actual weather. On the other hand the extent (frequency and media type) to which people are exposed to these weather forecasts appears to play only a marginal role. This dual role weather information plays in this study appears to be supported by the conflicting international literature and therefore revealing the underlying psychological motivations to change one's activity-travel behavior is a key challenge for further research. [less ▲]

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See detailA new tool to control meat products safety: a web based application of predictive microbiology models
Delhalle, Laurent ULg; Adolphe, Ysabelle ULg; Crevecoeur, Sébastien ULg et al

Conference (2011)

Predictive microbiology is considered by the European legislation as a tool to control food safety. Meat and meat products are particularly sensitive to contamination with pathogens. However, development ... [more ▼]

Predictive microbiology is considered by the European legislation as a tool to control food safety. Meat and meat products are particularly sensitive to contamination with pathogens. However, development of predictive microbiology models and interpretation of results require specific knowledge. A free web based model has been developed for an easy use by people who are not experts in this field as industries and public authorities. The model can simulate the growth of Salmonella spp, Listeria monocytogenes and Escherichia coli O157 in minced pork meat and on pork meat product (white pudding) under different environmental conditions. The model provides simulations under static or dynamic conditions over time. The user also has the opportunity to import the specific growth rate and cardinal parameters of a bacterium. Unlike polynomial models currently available, this free web access model is distinguished by the use of secondary square roots and primary logistic model with delay. This model permits to have a real time process management, to prospect new formulation for safer products or to design safer processes, to estimate the shelf life of a food product, etc [less ▲]

Detailed reference viewed: 131 (21 ULg)
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See detailRelease and innate immune detection of host cell DNA mediate the adjuvant activity of aluminum salts
Marichal, Thomas ULg; Ohata, K; Bedoret, Denis et al

Conference (2011)

Detailed reference viewed: 13 (3 ULg)
See detailSocial, Ethnic and Gender Dimensions and Stakes in Civic and Politic Participation .
Gavray, Claire ULg; Born, Michel ULg; Fournier, Bernard

Conference (2011)

Detailed reference viewed: 7 (0 ULg)
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See detailBrain natriuretic peptide in asymptomatic degenerative mitral regurgitation: determinants and impact on outcome.
Van de Heyning, C; Magne, Julien ULg; Mahjoub, H et al

Conference (2011)

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See detailThermal model reduction using the super-face concept
Masset, Luc ULg; Bruls, Olivier ULg; Kerschen, Gaëtan ULg

Conference (2011)

The objective of this presentation is to carry out thermal model reduction in the context of the finite element method. The finite element model is decomposed in several sets of adjacent faces called ... [more ▼]

The objective of this presentation is to carry out thermal model reduction in the context of the finite element method. The finite element model is decomposed in several sets of adjacent faces called super-faces. Specialized algorithms such as the METIS partitioning algorithm are used to automatically generate the super-faces. Several constraints may be imposed, e.g., the size of the super-face, its aspect ratio or its aperture angle. Once the model is decomposed, view factors between super-faces are calculated with direct numerical integration or ray-tracing methods. This method offers a very substantial reduction of the computational burden compared to the full model, which is particularly interesting for pre-design studies or specific applications such as deployable structures. [less ▲]

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See detailLes compétences émotionnelles dans le domaine des activités physiques et sportives. Une analyse de la littérature
Mouton, Alexandre ULg; Cloes, Marc ULg

Conference (2011)

L'étude des facteurs qui influencent l'efficacité de la dyade éducative entre un intervenant et un apprenant a toujours asuscité un véritable engouement dans le domaine de l'intervention en sport. Une des ... [more ▼]

L'étude des facteurs qui influencent l'efficacité de la dyade éducative entre un intervenant et un apprenant a toujours asuscité un véritable engouement dans le domaine de l'intervention en sport. Une des composantes essentielles de la communication interpersonnelle est le lien socio-émotionnel existant entre les acteurs de cette relation. ... [less ▲]

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See detailExploring the nucleon structure through GPDs and TDAs in hard exclusive processes
Pire, Bernard; Semenov-Tyan-Shanskiy, Kirill ULg; Szymanowski, Lech et al

Conference (2011)

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See detailTowards Laser Cooling of Iron Atoms
Bastin, Thierry ULg

Conference (2011)

Detailed reference viewed: 46 (3 ULg)
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See detailConservation of endangered plant communities: a study case of ecosystem reconstruction in Katanga (DRC)
Lebrun, Julie ULg; Handjila, Guylain; Bizoux, Jean-Philippe ULg et al

Conference (2011)

The Katangan copper-cobalt deposits (Democratic Republic of Congo) are part of the Central African Copperbelt, one of the world’s greatest metallogenic province. The ore comes to the surface in a series ... [more ▼]

The Katangan copper-cobalt deposits (Democratic Republic of Congo) are part of the Central African Copperbelt, one of the world’s greatest metallogenic province. The ore comes to the surface in a series of hills isolated in the miombo woodland. These unique ecosystems present high metals concentration levels where a specific vegetation develops. Flora comprises more than 600 species from which 30 are endemics. Due to the recent revival of mining activities in the region, copper plant communities of Katanga and their associated flora are now critically threatened. Tenke Fungurume Mining sarl (TFM), an important mining company operating in Katanga, has developed a Biological Diversity Action Plan (BDAP) to conserve copper-cobalt flora and mitigate potential species extinction risk. One of the most original BDAP tasks is an ecosystem reconstruction experiment that should preserve plant communities representative of the diversity found on the exploited hill and to provide the plant material for further post-exploitation restoration. From December 2007 to April 2009, full vegetation blocks were translocated with their soil mat on an adequate mineral substrate of 1500m². Since 2008, the artificial ecosystem is monitored every year. Three communities were successfully recreated. A total of 144 species were found in the ecosystem which represents more than 80% of the original species richness. The reconstructed ecosystem seems to favour the most tolerant species to copper. This first experience shows that ecosystem reconstruction is successful and may be used as a strategy to conserve copper-cobalt plant communities in their habitat. [less ▲]

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See detailPreconceptional immune biomarkers in assisted reproduction: G-CSF in the follicular fluid -Interleukin-18, -15 and TWEAK in the endometrium
Lédée, N; Petitbarat, M; Rhamati, M et al

Conference (2011)

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See detailImplant dans le secteur esthétique: choix du timing et de la technique chirurgicale
LAMBERT, France ULg

Conference (2011)

Les résultats esthétiques en implantologie sont déterminés par une harmonie tissulaire et prothétique. Plusieurs techniques chirurgicales sont décrites et le choix de celle-ci est déterminant pour obtenir ... [more ▼]

Les résultats esthétiques en implantologie sont déterminés par une harmonie tissulaire et prothétique. Plusieurs techniques chirurgicales sont décrites et le choix de celle-ci est déterminant pour obtenir un résultat esthétique optimal. Cet exposé décrit des techniques chirurgicales telles que: extraction/implantation immédiate, gestion d'alvéoles ou encore régénération osseuse. L'objectif est, à partir d'une situation clinique initiale, de déterminer le choix de la technique idéale ainsi que le timing chirurgical . [less ▲]

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See detailLa gestion de la diversité dans les entreprises et les organisations
Cornet, Annie ULg

Conference (2011)

Detailed reference viewed: 56 (5 ULg)
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See detailThe hidden function of NIK (NF-κB-Inducing Kinase) in cell death
Boutaffala, Layla; Bertrand, Mathieu; Remouchamps, Caroline ULg et al

Conference (2011)

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See detailL'esthétique nietzschéenne : une médecine de la civilisation
Remacle, François ULg

Conference (2011)

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See detailComa et état végétatif
Vanhaudenhuyse, Audrey ULg

Conference (2011)

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See detailElectro-assisted assembly of Aliphatic Thiol, Dithiol and Dithiocarboxylic Acid Monolayers on Polycrystalline Copper Substrates
Maho, Anthony ULg; Denayer, Jessica; Delhalle, Joseph et al

Conference (2011)

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See detailKarsts in silicated and non carbonated rocks
Willems, Luc ULg

Conference (2011)

Karsts in silicated and non carbonated rocks refer to morphologies similar to those found in limestones (caves, lapies, polje…) as being equally generated by predominantly dissolution processes. Their ... [more ▼]

Karsts in silicated and non carbonated rocks refer to morphologies similar to those found in limestones (caves, lapies, polje…) as being equally generated by predominantly dissolution processes. Their discovery in allegedly not very soluble rocks raises the question of existing water resources in lithologies which are rarely considered from this point of view. A rough inventory of this kind of karsts shows that they essentially develop in sandstones and quartzites. Other silicated lithologies such as granites or gneisses seem to contain only a few examples. Karsts in silicated and non carbonated rocks are found at all latitudes, though mainly in the warm and temperate climate zones of the world. Nevertheless, these conclusions may result from the lack of systematic prospecting in numerous regions of the world. Typically, most studied cavities are located in Paleozoic to Proterozoic rocks. Underground networks can stretch for several kilometers. Two types of cavities can be identified. The first one is characterized by cave entrances located in a cliff or in a raised hillside. These subhorizontal cavities end blind within the rock massif. No trace of fracturing authorizing mechanical erosion by flows, which would explain their genesis, was ever recorded. The second type of cavities is characterized by the presence of an underground stream which disappears in a siphon or in some impenetrable passages. In some cases, an important granular disintegration of the surrounding rock produces quantities of sand which seal large pre-existent voids. The latter were formed in different physico-chemical conditions than those present in the open air environment. An initial deep karstification is possible despite the surface environment. Secondary morphologies on the cave walls (alveoli, pillars of dissolution, passages with “key hole” section, ceiling bells …) enable us to partially reconstitute the genesis of these caves. It would start in a phreatic environment with the development of spots of dissolution along deep water circulations. Initially, independent cavities grow and interconnect to form embryonal karst networks. The incision of valleys and the weathering processes progressing from the surface can intersect these. Physical erosion then becomes more prominent than chemical erosion. The pre-existent forms, depending on their organization, can either be dismantled or contribute to the evolution of a complex karst network. A comprehensive study of karsts in silicated and non carbonated rocks is an opportunity to a better understanding of generally inaccessible deep karstification, including in the carbonated rocks. Moreover, the presence of these karsts and sometimes of underground rivers in regions hit by chronic droughts represents a potential of water resources disregarded today. [less ▲]

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See detailThe Herschel view of nebulae around evolved massive stars
Vamvatira-Nakou, Chloi ULg; Royer, P.; Hutsemekers, Damien ULg et al

Conference (2011)

The detailed study of the nebulae ejected from Luminous Blue Variables and the circumstellar bubbles around Wolf-Rayet stars, which radiate strongly in the IR due to the heating of dust, is crucial for ... [more ▼]

The detailed study of the nebulae ejected from Luminous Blue Variables and the circumstellar bubbles around Wolf-Rayet stars, which radiate strongly in the IR due to the heating of dust, is crucial for understanding the massive stars evolution. With Herschel, the largest telescope ever flown in space, we are able to study the gas and the dust in these circumstellar environments in the full far-infrared waveband. In the context of 'Mass-loss of Evolved StarS' Herschel guaranteed time key programme, we have obtained imaging and spectroscopic observations of nebulae associated with Luminous Blue Variable and Wolf-Rayet stars using PACS, one of the three instruments onboard Herschel. A description of these observations and first results of the data analysis are presented. [less ▲]

Detailed reference viewed: 51 (35 ULg)
See detailExergetische Bewertung der Routen zur stofflichen Nutzung von Biomasse
Frenzel, Philipp; Fayyaz, Sara; Hillerbrand, Rafaela et al

Conference (2011)

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See detailSimulation of Reactive Extraction Columns Based on Lab-scale Experiments with Single Drops
Kalem, Murat; Buchbender, Florian; Pfennig, Andreas ULg

Conference (2011)

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See detailLa mise en scène en images de la promenade sacrée des corps saints
George, Philippe ULg

Conference (2011)

http://www.europaethesauri.eu/CA-ANGERS11-16sept.htm

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See detailMotives to begin physical education studies. Comparative analysis in Algeria and Wallonia
Kerfes, Nabil; Alem, Jaouad; Cloes, Marc ULg

Conference (2011)

There are many reasons explaining why students choose one professional project and/or an academic programme. Usually, they consider higher education according to various aspects focusing on the content of ... [more ▼]

There are many reasons explaining why students choose one professional project and/or an academic programme. Usually, they consider higher education according to various aspects focusing on the content of the programme as well as on professions to which the latter leads. This study is in the field on comparative education. It offers a comprehensive reading of two education systems in a spirit of openness and expansion of knowledge. With inspiration from two studies conducted in the education of physical educators in very different cultural contexts (Research Group MJS, 1993, for Algeria – Groupe de recherche interuniversitaire, 2003, for French-speaking Belgium), we have assumed that the students’ motives for registering in studies in physical education should differ considerably. The purpose of this research has therefore been to determine the reasons motivating students to begin a physical education programme at the university or at a non university context. Our research was based, firstly, on the analysis of official texts concerning the organization of higher education in the field of physical education and, secondly, on data collected from the actions involved in four educational institutions, two in the Algiers region and two in the Liege region. In both cultural contexts, one institution belonged to one university and the other one was organized in a non university context. Our results relate to a total sample of 290 subjects (40 members of teaching staffs, 108 students and 142 graduates). The staff members were interviewed while the subjects of two other groups have responded to questionnaires. The Arabic version of each instrument was translated from an original French version. One expert has assured the validity check. In this paper, we are focusing our attention on the analysis of the responses provided by the three types of actors to a question aiming to identify, through four levels Lickert scales, the degree of importance accorded by subject to nine reasons of registration for studies in physical education. Answer were encoded in a computer database and processed using the Statistica software (Stat Soft, 2006). No significant difference was identified when comparing the answers of respondents. However, we noticed that the love of sport and the desire to do sport belonged to the most important reasons for the registration of the new students for training programs in physical education. Cultural context does not seem to affect the opinions of the subjects. [less ▲]

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See detailApport du MALDI-TOF en bactériologie
MEEX, Cécile ULg

Conference (2011)

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See detailAging is associated with more intrusions errors but not more plagiarism errors
Perfect, Timothy James; Defeldre, Anne-Catherine; Elliman, Rachel et al

Conference (2011)

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See detailCharcoal production at mound kiln sites affects pedogenesis and soil capacity to stabilize organic carbon
Cornelis, Jean-Thomas ULg; hardy, Brieuc; Delvaux, Bruno et al

Conference (2011)

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See detailThermo-hydro-mechanical simulation of a heating and hydration experimental study (the China-Mock-up) in GMZ bentonite
Chen, L.; Wang, J.; Liu, Y.M. et al

Conference (2011)

Detailed reference viewed: 6 (0 ULg)
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See detailDeterminant and Impact on Outcome of Exercise Pulmonary Hypertension in Asymptomatic Severe Aortic Stenosis.
Magne, Julien ULg; Donal, E; O'Connor, K et al

Conference (2011)

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See detail10 façons d’interpréter une neuropathie asymétrique
WANG, François-Charles ULg

Conference (2011)

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See detailAvoiding congestion in freight transport planning: a case study in Flanders
Caris, An; Cools, Mario ULg; Debels, Dieter

Conference (2011)

A substantial increase in transport intensity for passenger and freight traffic has been observed during the last decades and research confirms that this trend will continue in the years to come. Economic ... [more ▼]

A substantial increase in transport intensity for passenger and freight traffic has been observed during the last decades and research confirms that this trend will continue in the years to come. Economic centres have turned into heavily congested areas. The freight transport sector incurs excessive waiting times on the road as well as at intermediate stops (e.g. sea terminals, loading or unloading points). This may cause economic losses and environmental damages. Waiting times may be avoided by taking into account congestion in freight transport planning. Vehicle routing problems arise when several pickup and delivery operations need to be performed, mainly by truck, over relatively short distances [1]. Congestion leads to uncertain travel times on links and uncertain waiting times at pickup or delivery locations. Peak hours may be avoided on congested road segments by changing the order in which customers are served. On the other hand, time slots at customer sites may be renegotiated, creating more flexibility to avoid congestion on the road and at customer stops. The objective of this paper is to estimate the benefits of taking congestion into account in transport planning and to quantify the impact of delivery restrictions on transport costs. A highly congested road network raises the need for robust vehicle routing decisions. Current traffic conditions give rise to uncertain travel times. The reliability of travel time on a route is one of the dominant factors affecting route and departure time choices in passenger transport [2]. Similarly, in freight transport the reliability of travel times may be taken into account when planning vehicle routes. In this paper congestion is modelled as time-dependent travel times. These travel times take into account the dynamics of the time lost due to congestion using the Bureau of Public Roads (BPR) function, which is commonly-used for relating travel times to increases in travel volume [3]. The Time Dependent Vehicle Routing Problem (TDVRP) will be studied as a deterministic planning problem taking into account peak hour traffic congestion. Solution methods for the TDVRP have been focused on heuristic approaches [4, 5, 6, 7]. Kok [8] applies a restricted dynamic programming heuristic to solve a TDVRP. In this paper a heuristic algorithm will be presented to solve problem instances of realistic size. Next, this algorithm will be applied to perform a sensitivity analysis to identify which congestion avoiding strategies have a large influence on the objective function. Shippers may adapt the way they plan their transport as a strategy to avoid congestion. For example, time windows at customer locations may be renegotiated, departure times at the depot may be questioned or the assignment of customers to routes and the order in which customers are served may be changed. The proposed methodology will be demonstrated with a Flemish case study. [less ▲]

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See detailHay transfer to restore rupestrian fields, physiognomy of Cerrado threatened by land-use changes
Le Stradic, Soizig ULg; Buisson, Elise; Fernandes, Geraldo Wilson

Conference (2011)

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See detailArsenic-doped Ge-spiked monoemitter SiGe:C HBTs by means of low-temperature trisilane based epitaxy
You, Shuzhen; Decoutere, Stefaan; Nguyen, Ngoc Duy ULg et al

Conference (2011)

Detailed reference viewed: 44 (1 ULg)
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See detailEco-Ethology of bonobos, Pan paniscus, in West Democratic Republic of Congo; why are critical data so important for long-term conservation programs?
Serckx, Adeline ULg; Huynen, Marie-Claude ULg; Beudels-Jamar, Roseline

Conference (2011)

The Bonobo could be one of the species facing the biggest conservation challenge in the years to come. Endemic to the West Democratic Republic of Congo (DRC), its survival depends exclusively on the ... [more ▼]

The Bonobo could be one of the species facing the biggest conservation challenge in the years to come. Endemic to the West Democratic Republic of Congo (DRC), its survival depends exclusively on the management measures taken by a country having to deal concomitantly with many problems affecting its development, i.e. demographic explosion, poverty, insecurity and deforestation. But the survival of bonobos, classified as Endangered by IUCN (2010) and restricted to a relatively small range, will require newly designated and effective protected areas. This will imply long-term conservation programs, taking into account the bonobos’ populations requirements, as well as the local socio-economic needs and realities. In 2005, a large population of bonobos has been identified in Western DRC, in a rather eccentric part of the species range compare with the best known populations inhabiting the rainforest of center DRC. The Western region, known as the Lake Tumba Landscape, is characterized by a relatively poor rural human population, an active bushmeat trade, and is divided into several logging concessions and cattle ranches. In 2007, WWF initiated a vast conservation program in the area, including an eco-tourism project involving the habituation of 2 bonobos populations. Until now, only sparse information has been gathered but preliminary studies indicate that habitat use by bonobos – a forest-savannah mosaic – differs substantially from that of other known populations. The objective of the research is to define the eco-ethological profile of those 2 populations. For this purpose, we will characterize diet and food preferences, examine population density and try to identify factors inducing nesting sites’ choice. This information will help understanding habitat use by bonobos in the Western region, and should allow us to come up with specific management measures to be adopted by logging concessions, WWF and ICCN as part of the region’s conservation program. [less ▲]

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See detailL'idéalité du sens. Levinas interprète de Husserl
Boccaccini, Federico ULg

Conference (2011)

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See detailEulerian Formulation of a Drillstring Constrained inside a Curved Borehole
Denoël, Vincent ULg; Detournay, Emmanuel

Conference (2011)

Detailed reference viewed: 30 (6 ULg)
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See detailMolecular phylogeography of the common dormouse, Muscardinus avellanarius
Mouton, Alice ULg; Grill, Andrea; Sarà, Maurizio et al

Conference (2011)

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See detailSystemic resistance induced by Bacillus amyloliquefaciens S499 and root colonization is influenced by short exposure to environmental stress
Pedrotti, L.; Hosni, T.; Leoni, V. et al

Conference (2011)

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See detailL'ordre marchand et le choc des civilisations
Delruelle, Edouard ULg

Conference (2011)

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See detailE.coli virulence factors
Mainil, Jacques ULg

Conference (2011)

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See detailFinancial analysis of poultry commodity chains in Hanoi Suburb, North of Vietnam
Phan Dang, Thang; Vu Dinh, Ton; Dogot, Thomas ULg et al

Conference (2011)

Poultry production plays an important role in the structure of familial incomes in Vietnam but this activity is currently met with difficulties caused by the great influence of inputs/outputs on the ... [more ▼]

Poultry production plays an important role in the structure of familial incomes in Vietnam but this activity is currently met with difficulties caused by the great influence of inputs/outputs on the markets and the risks of epidemic diseases. This research was conducted for interviews and records according to book keeping among 280 poultry smallholders; 100 intermediary agents of poultry meat supply chains at the various scales of poultry supply chains and the diversification of poultry markets (poultry producers, private hatcheries, collectors of live poultry, slaughter houses and distributors of poultry meat) in Hanoi Suburb between 2009 and 2010. This research aimed at addressing to improving the income of small poultry producers and identifying the intermediary economic agents and its economic distributions. Furthermore, this research would like to solve restoring the poultry production and the various restraints faced of food contamination in poultry meat supply chains. Institutional organization and financial analysis approaches in different agents was used to calculate the value-added and to explain this problem in poultry meat commodity chains. Institutional organization of poultry meat supply chains is really complex with diverse economic agents. There are not many poultry meat products have a good traceability. These recent years, broiler industrial chickens and ducks met with some difficulties with the profits were very unstable or loss-making. But this industrial broiler chicken still occupies more and more an important role for the demand of domestic consumers. In addition, color broiler chickens were chosen for more satisfying the Vietnamese taste. In fact, local or color crossbred broiler chickens have a good economic performance but the output is still instable. Traders of live poultry and manual slaughter-house have a good economic performance caused by using the source of familial labor and selling directly to consumers. The systems of automatic skill of live poultry have still limited. The consumers do not be informed the useful information on food safety standards. [less ▲]

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See detailTerritorial observation (T3) - Discussion report
Breuer, Christophe ULg

Conference (2011)

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See detailAnalyse des pigments des dessins pariétaux de la grotte Chauvet à Vallon-Pont-d'Arc
Laval, Eric; Salomon, Hélène ULg; Vignaud, Colette et al

Conference (2011)

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See detailHPV triggers NK cell cytotoxic activity and cytokine secretion
Jacobs, Nathalie ULg; Renoux, Virginie ULg; Bisig, Bettina ULg et al

Conference (2011)

Background The immune system controls, at least partially, human papillomavirus (HPV) infection and subsequent tumor development as demonstrated by a higher tumor prevalence in immunodeficient patients ... [more ▼]

Background The immune system controls, at least partially, human papillomavirus (HPV) infection and subsequent tumor development as demonstrated by a higher tumor prevalence in immunodeficient patients. Around 90% of HPV-infected women will clear the virus within two years. However, it remains unclear which immune cells are implicated in this process and no study has been performed evaluating the direct interaction between HPV and Natural Killer (NK) cells although these cells play a key role in host resistance to virus and tumor. Methods/Results By immunochemistry, we demonstrated an NK cell infiltration in HPV+ squamous pre-neoplasic lesions. Since HPV cannot grow in vitro, virus-like particles (VLP) were used as a model for studying the NK cell response against the virus. Interestingly, NK cells displayed a higher cytotoxic activity (CD107 and chromium release assays) and cytokine production (TNF-α and IFN-γ) in the presence of HPV-VLP. Uptake of HPV-VLP by dendritic cells (DC) has been shown to induce their activation, therefore, we investigated by flow cytometry and microscopy whether the stimulation of NK cell activity is linked to VLP internalization. We observed a faster entry into these cells compared to DC. Furthermore, virus uptake by NK cells is mediated by macropinocytosis, whereas this entry is dependent on clathrin or caveolin endocytosis pathways in DC. Using NK cell lines expressing or not CD16 and blocking antibody, we demonstrated that CD16 is necessary for HPV-VLP internalization, but also for degranulation and cytokine production. Conclusion Thus, we show for the first time that NK cells interact with HPV and could participate in the immune response against HPV-induced tumors. [less ▲]

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See detailMicrosporidia parasites in Gammarid: a confounding factor in the evaluation of cadmium toxicity
Gismondi, Eric ULg; Rigaud, Thierry; Beisel, Jean-Nicolas et al

Conference (2011)

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See detailModernization of animal products consumption in Hanoi, Northern Vietnam
Vu Dinh, Ton; Phan Dang, Thang; Do Duc, Luc et al

Conference (2011)

Global food crisis has played its negative effects on sustainable development. A question has been raised: how could the families in both rural and urban areas struggle against this present global food ... [more ▼]

Global food crisis has played its negative effects on sustainable development. A question has been raised: how could the families in both rural and urban areas struggle against this present global food crisis? This research aims at documenting household food consumption from January to October 2010 by interviewing with and operating a record keeping system of food consumption in 250 households of various income levels living in two different areas of Hanoi, the inner and suburban districts. There is variety of animal products consumed in each family of both areas. Indeed, pork meat, broiler chickens and freshwater fish were popularly used in all families; and broiler ducks are usually consumed in summer season. Furthermore, in the inner districts, there is a rise in the demand of red meats and aquatic products, particularly beef and seafood products. Home-made foods are still a major source of foods for all family members of most of families, however, families in urban areas tends to have breakfasts and lunches in restaurants. In rural areas, the soya curd (tofu) and self-made products from broiler chickens, vegetables, and the rice play an important role, occupying from 15% to 30% of food expenditures. In addition, pork meat and freshwater fish are usually bought in village markets. Through incomes of 82% of households are mainly from agricultural production or from between agriculture and off-farm activities, thanks to self-made products in most of households, the rural areas are not considerably influent by the present global food and financial crisis. Nevertheless, in order to achieve sustainable development, it is necessary to equip farmers with sufficient knowledge of practical agricultural production. [less ▲]

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See detailLes bases de textes latins du LASLA : réalisations et projets
Longrée, Dominique ULg

Conference (2011)

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See detailThe effect of symmetric/asymmetric TAG ratio on the crystallization properties and storage stability of fat blends
DeGraef, V.; Vereecken, J.; Danthine, Sabine ULg et al

Conference (2011)

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