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See detailStudy of the degradation mechanisms of Prussian Blue in paint layers by X-ray absorption spectroscopy
Samain, Louise ULg; Silversmit, Geert; Vekemans, Bart et al

Conference (2010)

Detailed reference viewed: 63 (8 ULg)
Peer Reviewed
See detailUnlock sytemic locking? From conversion towards transition
Stassart, Pierre M ULg

Conference (2010)

The potential sectoral (food chain) transition approach suffers from a strong regimen’s irreversibility. In this paper we consider the question of cooperation regime transformation. Indeed in our case ... [more ▼]

The potential sectoral (food chain) transition approach suffers from a strong regimen’s irreversibility. In this paper we consider the question of cooperation regime transformation. Indeed in our case, the lock-in issue also proved to have a professional dimension linked to the cooperation regime. While the “filière” quality convention (Gomez 1994) could re-frame the traditional relationships between different members of the “filière,” this potential transformation was blocked by the strongest professional/sectoral convention. Professional conventions (Allaire 2004) are competency conventions that define and qualify “good” work within a set of rules. Professional conventions may be destabilized by transforming legitimacy systems through a territorial (rather than sectoral) approach and as a consequence start to overcome the socio-technical lock-in. Interactions between weak pressure at the landscape (macro) level (EU), niche (micro) level, and knowledge coming from the previous intervention research created space for regime destabilization (Geels & Schot 2007b). Local stakeholders (institutions) joined with local actors (consumers-citizens, and naturalists) to create room for a learning process and let the “Gaume Grassland Steer” niche experiment emerge. [less ▲]

Detailed reference viewed: 18 (0 ULg)
Peer Reviewed
See detailProcess mineralogy and automated phase identification in mixed copper ores at Kansanshi (Zambia)
Kottgen; Bastin, David ULg; Dufrane, Florent et al

Conference (2010)

Detailed reference viewed: 16 (0 ULg)
See detailElectronic spectroscopy of nucleic acids in the gas phase
Gabelica, Valérie ULg; Rosu, Frédéric ULg; Joly, Laure ULg et al

Conference (2010)

DNA polyanions trapped in a mass spectrometer undergo electron detachment following UV irradiation. Photodetachment is a single-photon process. Its efficiency depends on the nature of the DNA bases, the ... [more ▼]

DNA polyanions trapped in a mass spectrometer undergo electron detachment following UV irradiation. Photodetachment is a single-photon process. Its efficiency depends on the nature of the DNA bases, the ion's charge, and the excitation wavelength. Photodetachment can therefore be used to perform ion spectroscopy experiments, which probe electronic excitation within the initial charge state of the nucleic acids. Ion spectroscopy experiments on trapped nucleic acid cations and anions were performed from 4 to 20 eV using an OPO laser or using synchrotron radiation. Photoelectron spectroscopy experiments were also performed on multiply charged anions to probe direct detachment cross sections and electronic excitations within the final charge. The electronic spectra obtained from photodetachment integral cross sections show several resonances, provided that the photon energy is larger than the electron binding energy. We will also discuss whether the electronic spectra obtained via photodetachment can be used to probe gas phase ion structure. [less ▲]

Detailed reference viewed: 74 (5 ULg)
See detailEnsemble smoother for optimizing tidal boundary conditions and wind forcing by assimilation of High-Frequency Radar surface currents measurements of the German Bight
Barth, Alexander ULg; Alvera Azcarate, Aïda ULg; Staneva, Joanna et al

Conference (2010)

An ensemble smoother scheme is presented to assimilate HF radar surface currents to improve tidal boundary conditions and wind forcings of a circulation model of the German Bight. To create an ensemble of ... [more ▼]

An ensemble smoother scheme is presented to assimilate HF radar surface currents to improve tidal boundary conditions and wind forcings of a circulation model of the German Bight. To create an ensemble of dynamically realistic tidal boundary conditions, a cost function is formulated which is directly related to the probability of each perturbation. This cost function ensures that the perturbations are spatially smooth and that the structure of the perturbations satisfies approximately the harmonic linearized shallow water equations. Based on those perturbations an ensemble simulation is carried out using the full three-dimensional General Estuarine Ocean Model (GETM). Optimized boundary values are obtained using all observations within the assimilation period using the covariances of the ensemble simulation. The approach acts like a smoother scheme since all observations are taken into account. Since the scheme aims to derive the optimal perturbation, it might be called Ensemble Perturbation Smoother. The final analysis is obtained by rerunning the model using the optimal perturbation to the boundary conditions. The analyzed model solution satisfies thus the model equations exactly and does not suffer from spurious adjustments often observed with sequential assimilation schemes. Model results are also compared to independent tide gage data. The assimilation did also reduce the model error compared to those sea level observations. The same scheme has also been used to correct surface winds. Surface winds are crucial for accurately modeling the marine circulation in coastal waters. The method is validated directly by comparing the analyzed wind speed to in situ measurements and indirectly by assessing the impact of the corrected winds on sea surface temperature (SST) relative to satellite SST. [less ▲]

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Peer Reviewed
See detailNiveau de contamination et spéciation des métaux lourds dans l'Oued Fès et l'Oued Sebou.
Bouezmarni, Mohamed ULg; Debbaut, Vincent ULg; Diouri, S. El Edrissi et al

Conference (2010)

Detailed reference viewed: 52 (7 ULg)
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See detail"Hypermoderne" le mangeur belge ?
Duquesne, Brigitte ULg

Conference (2010)

Detailed reference viewed: 113 (22 ULg)
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See detailOptimal design of a CO2 absorption unit and assessment of solvent degradation
Léonard, Grégoire ULg

Conference (2010)

Presentation of the main research fields of my PhD thesis at the University of Liège

Detailed reference viewed: 25 (5 ULg)
See detailDe la "fabrication" à la perception d’une action publique : la lutte contre le travail des enfants au Burkina Faso
Wouango, Joséphine ULg

Conference (2010)

Ma communication présente deux parties de ma thèse. La première partie concerne l’analyse historique et thématique des réponses de différents acteurs à la lutte contre le travail des enfants au Burkina ... [more ▼]

Ma communication présente deux parties de ma thèse. La première partie concerne l’analyse historique et thématique des réponses de différents acteurs à la lutte contre le travail des enfants au Burkina Faso: les pouvoirs publics, les acteurs de la société civile, les partenaires techniques et financiers, les partenaires sociaux. La deuxième partie présente l’analyse des résultats des deux enquêtes ethnographiques auprès des enfants et jeunes travailleurs. En m’appuyant sur la théorie de l’acteur social et des bases théoriques du nouveau paradigme de la sociologie de l’enfance (James & Prout, 1990), je confronterai les attentes, les expériences individuelles et collectives des enfants travailleurs aux réponses politiques et associatives de lutte contre le travail des enfants au Burkina Faso. [less ▲]

Detailed reference viewed: 32 (5 ULg)
Peer Reviewed
See detailInterplay between non-death and death TNFR in inflammation.
Dejardin, Emmanuel ULg

Conference (2010)

Detailed reference viewed: 9 (4 ULg)
Full Text
See detailMulti-scale computational homogenization for structured shells
Kouznetsova, Varvara; Coenen, Erica; Fioole, Joost et al

Conference (2010)

Substructured and layered thin sheets can be found in a variety of structural, e.g. structured panels, as well as high-tech applications. A typical example is flexible electronics, e.g. flexible displays ... [more ▼]

Substructured and layered thin sheets can be found in a variety of structural, e.g. structured panels, as well as high-tech applications. A typical example is flexible electronics, e.g. flexible displays, where layers of different materials and interconnects are stacked to provide the necessary functionality. The resulting complex three dimensional geometry of the structured thin sheets in this type of applications prohibits the use of classical layer-wise composite shell theory. For these problems, a computational homogenization technique for thin structured sheets is proposed in this work, based on the computational homogenization concepts previously developed for the first- and second-order continua. [less ▲]

Detailed reference viewed: 126 (9 ULg)
See detailSozialrechtliche Aspekte der Staatenlosigkeit
Thevissen, Patrick ULg

Conference (2010)

Detailed reference viewed: 11 (0 ULg)
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See detailDisplacement Extrapolation Method : An alternative to J-integral for stress intensity factors computation using X-FEM
Minnebo, Hans; Majérus, Julien; Noels, Ludovic ULg

Conference (2010)

Stress intensity factors (SIFs) computation techniques based on J-integral methods [1] are widely used in finite element codes. However, the Displacement Extrapolation Method (DEM) [2] is an alternative ... [more ▼]

Stress intensity factors (SIFs) computation techniques based on J-integral methods [1] are widely used in finite element codes. However, the Displacement Extrapolation Method (DEM) [2] is an alternative way to compute them. The idea is to process an extrapolation based on the relative displacement of the crack face nodes. This method is generally less accurate than integral methods, but it requires much less computational resources. The method is well documented and is implemented in some finite element software. The X-FEM introduced in [3] is suited for crack problems. However, the literature on DEM in the X-FEM case seems to be non-existent in the present time. This paper tries to fill this lack in the literature by describing a new method using X-FEM. The approach followed here is only developed for Linear Elastic Fracture Mechanics. Note that the finite element software Code_Aster [4] already computes SIFs with DEM in X-FEM, but in a slightly different way. [less ▲]

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Peer Reviewed
See detailImproved Aid Effectiveness but Waiting for Results: What are the Missing Links?
Paul, Elisabeth ULg; Dujardin, Bruno; Ireland, Megan et al

Conference (2010)

Objectives: The objective is to analyze the content of the Paris Declaration (PD) on aid effectiveness and Accra Agenda for Action (AAA), and their practical implications for the health sector in aid ... [more ▼]

Objectives: The objective is to analyze the content of the Paris Declaration (PD) on aid effectiveness and Accra Agenda for Action (AAA), and their practical implications for the health sector in aid-recipient countries. Design/methods: The study draws on (i) a critical analysis of the two declarations, (ii) a review of the literature on their implementation and (iii) interviews of people in charge of implementing them – both donors and government representatives. Results: The PD and AAA both have a "missing link" between, on the one hand, international cooperation policies (five pillars of the PD) and national development (health) plans; and, on the other hand, the operational level that is supposed to deliver results. They presume that by changing aid management and respecting a few principles, development results will automatically improve as through a "black box". The influence of international and national policies over health systems, service providers’ behaviour and health impacts is not treated at all by the agenda for aid effectiveness, while it is crucial for its success. Moreover, that agenda is mostly dealt with at a too high level (international forums or at best national sector level), thus deepening the disconnexion from field realities. Conclusions/policy implications: This "missing link" entails the risk that, if the "black box" does not perform as expected – that is, if health systems and health service providers’ behaviour do not evolve in a positive way – and health impacts do not improve, the aid effectiveness agenda may be rejected at all, notwithstanding its (incomplete) added value. Hence the need to closely monitor the processes of national health plans implementation, so in order to better understand how these processes are translated on the field and what could be done to ensure that health service delivery and health results ultimately improve. [less ▲]

Detailed reference viewed: 32 (0 ULg)
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Peer Reviewed
See detailA survey of honey bee colony losses in Belgium, fall 2008 to spring 2009
Nguyen, Bach Kim ULg; Mignon, Jacques ULg; Laget, D. et al

Conference (2010)

Detailed reference viewed: 74 (21 ULg)
Peer Reviewed
See detailIsotope shifts and hyperfine structure of the Fe I 372-nm resonance line
Oppel, S.; Krins, Stéphanie ULg; Huet, Nicolas ULg et al

Conference (2010)

Detailed reference viewed: 44 (16 ULg)
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Peer Reviewed
See detailAdverse effects of antibiotics on activated sludge process: the erythromycin case
Louvet, Jean-Noël ULg; Attik, Ghania; Dumas, Dominique et al

Conference (2010)

Detailed reference viewed: 18 (2 ULg)
Full Text
See detailDynamique spatiale de rejet des déchets au sein des fourmilières Myrmica rubra
Diez, Lise; Lejeune, Philippe ULg; Detrain, Claire

Conference (2010)

La vie en société de milliers d’individus apparentés dans un milieu confiné augmente le risque de transmission des pathogènes. Par le biais de comportements hygiéniques collectifs tels quel le rejet des ... [more ▼]

La vie en société de milliers d’individus apparentés dans un milieu confiné augmente le risque de transmission des pathogènes. Par le biais de comportements hygiéniques collectifs tels quel le rejet des déchets, les insectes sociaux ont développé des défenses spécifiques contre les pathogènes. Nous avons comparé la dynamique de rejet de différents types de déchets (cadavres, proies et morceaux de vermiculite) introduits dans des nids de Myrmica rubra. L’analyse vidéo, réalisée grâce à un programme original de suivi du déchet et de digitalisation des zones de couvain, a permis un suivi précis du déplacement de ces déchets au sein du nid. La vermiculite a été rapidement rejetée après 12 ± 4 minutes, les cadavres ont été éliminés après 139 ± 28 min et les proies ont été consommées puis rejetées après 17,3 ± 0,3 heures. L’analyse spatiale des déchets a montré un déplacement rapide des cadavres loin du couvain alors que les proies étaient fréquemment apportées près des larves pour la consommation. L’efficacité de la gestion des déchets a été testée par ailleurs en comparant la survie de colonies de fourmis ayant ou non la possibilité de rejeter leurs cadavres. La mortalité des adultes et des larves vivant dans des nids contraints de garder leurs cadavres est significativement supérieure à celle observée dans les colonies contrôles, confirmant l’importance de ce rejet pour la survie et le bon état sanitaire de la fourmilière. [less ▲]

Detailed reference viewed: 27 (2 ULg)
See detailAssimilation of high-frequency radar surface currents measurements to optimize tidal boundary conditions and wind forcing
Barth, Alexander ULg; Alvera Azcarate, Aïda ULg; Gurgel, Klaus-Werner et al

Conference (2010)

An ensemble smoother scheme is presented to assimilate high-frequency (HF) radar surface currents to improve tidal boundary conditions and wind forcings of a circulation model of the German Bight. To ... [more ▼]

An ensemble smoother scheme is presented to assimilate high-frequency (HF) radar surface currents to improve tidal boundary conditions and wind forcings of a circulation model of the German Bight. To create an ensemble of dynamically realistic tidal boundary conditions, a cost function is formulated which is directly related to the probability of each perturbation. This cost function ensures that the perturbations are spatially smooth and that the structure of the perturbations satisfies approximately the harmonic linearized shallow water equations. Based on those perturbations an ensemble simulation is carried out using the full three-dimensional General Estuarine Ocean Model (GETM). Optimized boundary values are obtained using all observations within the assimilation period using the covariances of the ensemble simulation. The approach acts like a smoother scheme since past and future observations are taken into account. The final analysis is obtained by rerunning the model using the optimal perturbation of the boundary conditions. The analyzed model solution satisfies thus the model equations exactly and does not suffer from spurious adjustments often observed with sequential assimilation schemes. Model results are also compared to independent tide gage data. The assimilation also reduces the model error compared to those sea level observations. The same scheme is also used to correct surface winds. Surface winds are crucial for accurately modeling the marine circulation in coastal waters. The method is validated directly by comparing the analyzed wind speed to in situ measurements and indirectly by assessing the impact of the corrected winds on sea surface temperature (SST) relative to satellite SST. [less ▲]

Detailed reference viewed: 15 (2 ULg)
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Peer Reviewed
See detailDiarrhea and vomitting in a yorkshire terrier
Ramery, Eve ULg; Papakonstantinou, Stratos; Pinilla, Manuel et al

Conference (2010)

Detailed reference viewed: 37 (1 ULg)
See detailSémiochimiques et danger - Les phéromones d'alarme
Verheggen, François ULg

Conference (2010)

Detailed reference viewed: 26 (9 ULg)
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Peer Reviewed
See detailLand conversion to industrialization and its impacts on household food security in Red River Delta, Vietnam
Nguyen Thi, Dien; Lebailly, Philippe ULg; Vu Dinh, Ton

Conference (2010)

Since 1990s Vietnam is undergoing rapid industrialization with the national goal of becoming an industrial country. As a result, large tracts of agricultural land were conversed to industrial zones and ... [more ▼]

Since 1990s Vietnam is undergoing rapid industrialization with the national goal of becoming an industrial country. As a result, large tracts of agricultural land were conversed to industrial zones and clusters. This paper analyzes the complex impacts caused by industrialization on household food security. Both qualitative and quantitative methods were applied to investigate how land conversion process to industrial companies affected food security of different groups of peasant households in Hung Yen province, the most rapid industrialization province in Red River Delta of Vietnam. The study showed that industrialization and neo-liberalism affected household food security in three aspects: the lost of large agricultural land area which did not ensure stable jobs for peasants; the decline of living quality as a result of environmental pollution and high living costs; and the lost of household self reliance on food, with 77 percent of surveyed households not producing enough food for their own consumption. Industrialization had created a new class structure in the Vietnamese countryside with the rise of landless peasants who survived by selling their labor and who are net food buyers. The study contributes to the research that link the analysis of household food security with livelihood systems in the processes interacting across scales, from the very local to the global. [less ▲]

Detailed reference viewed: 201 (9 ULg)
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See detailEuropean Union-Africa Partnership on cotton
Berti, Fabio ULg

Conference (2010)

Detailed reference viewed: 14 (1 ULg)
See detailGestion de la diversité, pourquoi et pour qui ?
Cornet, Annie ULg

Conference (2010)

Detailed reference viewed: 17 (2 ULg)
See detailL'erreur totale pour le transfert de méthodes
Rozet, Eric ULg

Conference (2010)

Detailed reference viewed: 37 (3 ULg)
Full Text
Peer Reviewed
See detailFocus on the epidemiology of metabolic syndrome in Luxembourg. Data from ORISCAV-LUX study
Alkerwi, A; Lair, ML; Guillaume, Michèle ULg

Conference (2010)

Detailed reference viewed: 7 (0 ULg)
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See detailReally TVD advection schemes for shelf seas
Mercier, Christophe ULg; Delhez, Eric ULg

Conference (2010)

During the last decade large efforts have been devoted to the development of high-resolution schemes to solve advection problems. High-resolution conservative numerical schemes satisfying conservative ... [more ▼]

During the last decade large efforts have been devoted to the development of high-resolution schemes to solve advection problems. High-resolution conservative numerical schemes satisfying conservative, monotonicity preserving and shock-capturing properties are nowadays widely used in ocean modeling. Among these, TVD schemes, based on the concept of Total Variation Diminishing (TVD), were progressively adopted because of their good behavior that guarantees a solution free from numerical artifacts (no overshooting, no spurious oscillation, small diffusion) that can spoil the physical significance of the results. Most of the TVD schemes and associated limiters have been originally developed in idealized one-dimensional flows described by a linear advection. In finite volume marine models, one has however often to deal with the depth integrated advection equation. This formulation is usually preferred because of its conservative form that is particularly suited to numerical treatment using a finite volume approach. Conservative numerical schemes can be easily formulated to ensure that the total mass of the advected quantity is conserved. This property is very valuable in the context of environmental studies for which a strict equilibrium of the mass budget of pollutants is often more relevant that the raw accuracy of the integration scheme. In the same context, the numerical scheme should also produce neither new local extremum nor negative concentrations, i.e. it should be monotonicity preserving which is implied by the TVD property. The development of TVD schemes for the resolution of advection equations written in the conservative form is however not trivial. Numerical experiments show that the blind application to the depth-integrated equation of the usual TVD schemes and associated flux limiters introduced in the context of linear advection can lead to non-TVD solutions in presence of complex geometries. Spatial and/or temporal variations of the local bathymetry can indeed break the TVD property of the usual schemes. Really TVD schemes can be recovered by taking into account the local depth and its variations in the formulation of the flux limiters. Using this approach, a generalized superbee limiter is introduced and validated. [less ▲]

Detailed reference viewed: 63 (9 ULg)
See detailLeadership et genre : le piège des compétences sexuées
Cornet, Annie ULg

Conference (2010)

Detailed reference viewed: 45 (7 ULg)
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See detailCOMMUNITY FORESTS IN CENTRAL AFRICA: PRESENT HURDLES AND PROSPECTIVE EVOLUTIONS
Karsenty, Alain; Lescuyer, Guillaume; Ezzine de Blas, Driss et al

Conference (2010)

Detailed reference viewed: 60 (5 ULg)
See detailSaturn's secondary auroral ring
Grodent, Denis ULg; Radioti, Aikaterini ULg; Bonfond, Bertrand ULg et al

Conference (2010)

Detailed reference viewed: 3 (1 ULg)
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Peer Reviewed
See detailTotal Error Concept in Validation of Viral Activity in Cell Cultures
Gibein, N.; Rozet, Eric ULg

Conference (2010)

Due to the high variability inherent of experimental recipients, validating biological methods is often a complex exercise, and following ICH Q2R1 recommendations is not always feasible and/or meaningful ... [more ▼]

Due to the high variability inherent of experimental recipients, validating biological methods is often a complex exercise, and following ICH Q2R1 recommendations is not always feasible and/or meaningful. Linking systematic error and random error to obtain a unique criterion, as defined in ISO guideline, could be of interest to capture the total variability in biological assays. In this paper, the use of Total Error concept in the validation of biological assays was for the first time investigated and compared to a conventional interpretation of the ICH guideline. Both decision methodologies concluded that the assaywas valid from 2.13 to 5.83 log10(CCID50/ml). However, only the Total Error approach using accuracy profile as decision tool allowed to guarantee that accurate and reliable results will be obtained during the future routine application of the assay. In addition, the risk to obtain out of acceptance limits results was estimated using this approach and was found out to be at the most 3.1% irrespective of the concentration level, thus demonstrating the reliability of the biological assay. [less ▲]

Detailed reference viewed: 9 (2 ULg)
See detailA new role for the PP2A regulatory subunit Balpha in angiogenesis
Martin, Maud ULg

Conference (2010)

Detailed reference viewed: 8 (0 ULg)
See detailEstimation of tidal boundary conditions and surface winds by assimilation of high-frequency radar surface currents in the German Bight
Barth, Alexander ULg; Alvera Azcarate, Aïda ULg; Gurgel, Klaus-Werner et al

Conference (2010)

Numerical ocean models are affected by errors of various origins: errors in the initial conditions, boundary conditions and atmospheric forcings, uncertainties in the turbulence parametrization and ... [more ▼]

Numerical ocean models are affected by errors of various origins: errors in the initial conditions, boundary conditions and atmospheric forcings, uncertainties in the turbulence parametrization and discretization errors. In data assimilation, observations are used to reduce the uncertainty in the model solution. Ensemble-based assimilation schemes are often implemented such that the expected error of the model solution is minimized. It is shown that the observations can also be used to obtain improved estimates of the, in general, poorly known boundary conditions and atmospheric forcings. An ensemble smoother scheme is presented to assimilate high-frequency (HF) radar surface currents to improve tidal boundary conditions and wind forcings of a circulation model of the German Bight. To create an ensemble of dynamically realistic tidal boundary conditions, a cost function is formulated which is directly related to the probability of each perturbation. This cost function ensures that the perturbations are spatially smooth and that the structure of the perturbations satisfies approximately the harmonic linearized shallow water equations. Based on those perturbations an ensemble simulation is carried out using the full three-dimensional General Estuarine Ocean Model (GETM). Optimized boundary values are obtained using all observations within the assimilation period using the covariances of the ensemble simulation. The approach acts like a smoother scheme since past and future observations are taken into account. The final analysis is obtained by rerunning the model using the optimal perturbation of the boundary conditions. The analyzed model solution satisfies thus the model equations exactly and does not suffer from spurious adjustments often observed with sequential assimilation schemes. Model results are also compared to independent tide gauge data. The assimilation also reduces the model error compared to those sea level observations. The same scheme is also used to correct surface winds. Surface winds are crucial for accurately modeling the marine circulation in coastal waters. The method is validated directly by comparing the analyzed wind speed to in situ measurements and indirectly by assessing the impact of the corrected winds on sea surface temperature (SST) relative to satellite SST. [less ▲]

Detailed reference viewed: 23 (5 ULg)
See detailFuran formation in baby food model systems from vitamin C and unsaturated fatty acids
Owczarek-Fendor, Agnieszka; De Meulenaer, Bruno; Scholl, Georges ULg et al

Conference (2010)

Detailed reference viewed: 58 (17 ULg)
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See detail« La mer dans la Passion de sainte Salsa »
Fialon, Sabine ULg

Conference (2010)

Detailed reference viewed: 10 (1 ULg)
See detailRem Koolhaas, Le Corbusier et la ville-événement
Steinmetz, Rudy ULg

Conference (2010)

Detailed reference viewed: 92 (16 ULg)
Peer Reviewed
See detailQuête, tourisme ou effets de mode ? Des tensions autour de la mobilité des fidèles dans le vaste marché de l’offre religieuse du Réveil congolais (RDC)
Demart, Sarah ULg

Conference (2010)

Au début des années 70, le Congo Kinshasa est touché par un mouvement de réveil (pentecôtiste) sans précédent. Trois décennies plus tard, c’est un paysage religieux pluriel et très contrasté, pour ne pas ... [more ▼]

Au début des années 70, le Congo Kinshasa est touché par un mouvement de réveil (pentecôtiste) sans précédent. Trois décennies plus tard, c’est un paysage religieux pluriel et très contrasté, pour ne pas dire concurrentiel, qui se donne à voir. Néanmoins, la frontière entre « monde chrétien » et « monde païen » que matérialise un système d’interdits fort, constitue un invariant fédérateur et significatif de l’impératif marquant ce christianisme de conversion. Et pourtant le rappel à l’ordre récurrent, parfois la plainte, des pasteurs à l’endroit des fidèles qui passent « d’une Eglise à l’autre » rend intelligible la perméabilité de cette frontière. Ce que nous mettrons en perspectives en appréhendant ces mobilités sous l’angle d’espaces interstitiels constitutifs de ces mondes religieux. [less ▲]

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See detailFrom Justification to phenomenology
Frère, Bruno ULg

Conference (2010)

The aim of this paper is to demonstrate the value of French pragmatist sociology as a post-Bourdieusian critical sociology. Against interpretations of justifications as cultural tool kits, we carve out ... [more ▼]

The aim of this paper is to demonstrate the value of French pragmatist sociology as a post-Bourdieusian critical sociology. Against interpretations of justifications as cultural tool kits, we carve out the framework’s phenomenological underpinnings in order to XXX. We suggest that the pragmatist notion of ‘grammar’ is useful to articulate the normative macro-elements that motivate local actions and justifications, while phenomenology helps us to understand those as expressions of fundamental ways of relating to the world [less ▲]

Detailed reference viewed: 11 (2 ULg)
Peer Reviewed
See detailDiversity Management in Belgium
Cornet, Annie ULg; Zanoni

Conference (2010)

Detailed reference viewed: 22 (4 ULg)
Peer Reviewed
See detailOn the origin of Planosols – the process of ferrolysis revisited
Van Ranst, Eric; Cornelis, Jean-Thomas ULg; Dumon, Mathijs et al

Conference (2010)

Abstract : Planosols have been recognized as a Major Soil Group right from the beginning in the legend of the FAO Soil Map of the World. Also in WRB system it maintained that position at Reference Soil ... [more ▼]

Abstract : Planosols have been recognized as a Major Soil Group right from the beginning in the legend of the FAO Soil Map of the World. Also in WRB system it maintained that position at Reference Soil Group level on the account that a major pedogenetic process, ferrolysis, is underlaying the severe stagnic properties that characterize this group. With the recent introduction of Stagnosols in WRB it appears that a serious overlap has been introduced at Reference Soil Group level. This paper aims to throw new light on the genesis of Planosols, drawing from new soil surveys conducted in the south-western Ethiopian highlands. The conclusion is that it is highly unlikely that ‘ferrolysis’ can be called in to explain the genesis of Planosols in the Ethiopian highlands. As Ethiopia is one of the mainstays of Planosols, it is suggested that WRB rethinks its strategy on soils with stagnic properties as there is room for rationalization. [less ▲]

Detailed reference viewed: 6 (0 ULg)
See detailInvestigation on the effects of small solid particles on the settling behaviour of dispersion systems
Ruckes, Sebastian; Liu, Yang; Pfennig, Andreas ULg

Conference (2010)

Detailed reference viewed: 1 (0 ULg)
Peer Reviewed
See detailY'a-t-il des missionnaires congolais en Belgique
Demart, Sarah ULg

Conference (2010)

Detailed reference viewed: 16 (0 ULg)
Peer Reviewed
See detailConvergent evolution for sound production with a putative slow muscle in a Perciform fish Glaucosoma buergeri (Glaucosomatidae)
Mok, Hin-Kiu; Tsai, Kai-En; Chiu, Pai-Ho et al

Conference (2010)

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See detailIdentification of chromosomal regions associated with segregation distortion of SSR markers and the genes controlling the low-gossypol seed & high-gossypol plant trait of Gossypium sturtianum
Benbouza, H.; Diouf, F.B.; Schefflers, J. et al

Conference (2010)

Distorted segregation of DNA markers is commonly encountered, especially in inter-specific crosses. Our main objective in this study was to identify chromosomal regions consistently associated with ... [more ▼]

Distorted segregation of DNA markers is commonly encountered, especially in inter-specific crosses. Our main objective in this study was to identify chromosomal regions consistently associated with segregation distortion in [(G. hirsutum x G. raimondii) x G. sturtianum] (HRS) hybrid. Segregation distortion skews the genotypic frequencies from their Mendelian expectations. In HRS progeny, chi square analysis (P < 0.01) showed significant skewed in all targeted linkage groups c2-c14, c3-c17, and c6-c25. Chromosomal region was regarded as being associated with skewed segregation, if three or more closely linked markers exhibited significant segregation distortion in one or more population(s). The targeted introgression regions in the tested population seem to be favourable for segregation distortion. Segregation distortion in HRS hybrid progenies differed in male and female gametes. Furthermore, the data indicated that the environment has strongly influenced the transfer of SSR markers through microspores. The consistent location of these chromosomal regions in selfed and backcross of HRS derivatives indicate probably the identification of segregation distortion regions (SDRs) in HRS hybrid. Comparison with results regarding the segregation distortion regions obtained in previous research by other authors and results we obtained regarding the absence of recombinations between BNL3436 and BNL1153 markers mapped on c6-c25 chromosome and spanned by 64 cM on the G. hirsutum map, after several generations of selfing, arise the question of the conservation of the gene order and spacing in G. sturtianum. Results showed that three SSR markers mapped on c6-c25 linkages groups were systematically transmitted in all selected progenies of the HRS tri-specific hybrid. Furthermore, the high percentages of loci with significant segregation distortion observed in this study suppose that a genetic mechanism may exist for preferential transmission of alien chromosomes segments. High heterozygosity frequencies (+/- 80%) were observed for all conserved G. sturtianum SSR markers, after several generations of backcrossing and selfing, which indicate that the cytogenetic and genetic conditions for obtaining homozygotes at high frequency are not met. [less ▲]

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See detailImaging techniques
Calvo Del Castillo, Helena ULg; Cervera Xicotencatl, Ariadna; Oger, Cécile

Conference (2010)

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Peer Reviewed
See detailAnalyse invasive versus analyse par faisceaux d'ions pour déterminer les sources géologiques de pigments préhistoriques de la grotte du Renne à Arcy-sur-Cure (Yonne, France)
Salomon, Hélène ULg; Beck, Lucile; Coquinot, Yvan et al

Conference (2010)

La grotte du Renne à Arcy-sur-Cure a été le théâtre d'occupations tardives par les derniers Néandertaliens, il y a environ 34 000 ans, soit avant l'apparition de l'art pariétal. Ils y ont utilisé d ... [more ▼]

La grotte du Renne à Arcy-sur-Cure a été le théâtre d'occupations tardives par les derniers Néandertaliens, il y a environ 34 000 ans, soit avant l'apparition de l'art pariétal. Ils y ont utilisé d'importantes quantités de roches pigmentées rouges et noires respectivement riches en fer et en manganèse. Les roches pigmentées ont été réduites en poudre soit par broyage, soit par abrasion, opération qui a produit des facettes d'usure sur les blocs. Le but de l'utilisation de ces matériaux n'est pas connu puisque Neandertal n'a laissé aucun témoignage de préoccupation esthétique. Rechercher les modalités d'acquisition des matières premières colorantes permet de connaître l'aire géographique fréquentée par ces hommes fossiles et de percevoir les propriétés de ces matériaux que les Néandertaliens désiraient exploiter. La caractérisation de ces matériaux s'est faite dans un premier temps par des méthodes de pétrographie traditionnelle impliquant le prélèvement parfois conséquent dans les matières colorantes archéologiques (prélèvement réduit en poudre pour la diffraction des rayons X, coupes pour faire des lames minces observées au microscope pétrographique). Ces investigations ont permis de distinguer deux sources d'approvisionnement en matières colorantes riches en oxydes de fer situées dans un rayon de 10 km autour de la grotte. Dans un second temps, la mise en place d'un protocole d'analyses non invasives visait à obtenir autant, voire plus, d'informations sur ces vestiges désormais connus, sans le moindre prélèvement. L'analyse par PIXE a permis de déterminer les éléments majeurs et les éléments traces marqueurs des groupes géologiques. Elle a pu être appliquée à la fois aux blocs bruts et aux blocs facettés pour lesquels les prélèvements sont impossibles. Les différentes sources de matières premières identifiées dans un premier temps par pétrographie, sont dans l'ensemble confirmées par PIXE. Mais une troisième source de roches rouges est à suspecter, ce que la pétrographie n'avait pas permis de déterminer. [less ▲]

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See detailIntegration sozialer Aspekte bei der Bewertung von Prozessen auf Basis erneuerbarer Energien
Kopriwa, Nicole; Reitinger, C; Penner, H et al

Conference (2010)

See detailUnit Operations simulated on the molecular level
Pereira Neto, A; Babic, D; Pfennig, Andreas ULg

Conference (2010)

See detailSlide seminar: Recurrent nevus
QUATRESOOZ, Pascale ULg

Conference (2010)

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See detailSaturn's polar auroral emissions
Radioti, Aikaterini ULg; Gérard, Jean-Claude ULg; Grodent, Denis ULg et al

Conference (2010)

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Peer Reviewed
See detailL'artiste commissaire
Bawin, Julie ULg

Conference (2010)

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See detailAnforderungen an die wissenschaftlich fundierte Auslegung der Phytoextraktion und Wege zu ihrer Umsetzung
Delinski, Dirk; Pfennig, Andreas ULg; Leistner, Jörg et al

Conference (2010)

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