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See detailMinimalisme / musiques populaires : un cas pour la théorie de l’acteur-réseau
Levaux, Christophe ULg

in Musimédiane (in press), 9

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See detailBrefs propos introductifs en faveur d'une poétique de l'écart
Havelange, Carl ULg; Molina Marmol, Maïté ULg; Strivay, Lucienne ULg

in Havelange, Carl; Molina Marmol, Maïté; Strivay, Lucienne (Eds.) La lettre et l'iimage. Enquête sur les territoires du visible (in press)

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See detailRôle et langue de Tchantchès dans les représentations en castelets des romans de chevalerie : le cas des Quatre fils Aymon
Baiwir, Esther ULg; Impe, Anaëlle

in Enquêtes du Musée de la Vie Wallonne (in press)

Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du ... [more ▼]

Pourquoi et dans quelle mesure les montreurs de marionnettes liégeoises font-ils intervenir Tchantchès aux côtés des grands chevaliers médiévaux, dont les aventures constituent une part importante du répertoire liégeois ? Quels sont ses moyens d'action, mais également ses modes d'expression ? Divers registres de langue apparaissent au fil des spectacles ; quels sont ceux prêtés à notre héros ? Et surtout, ce rôle et cette langue ont-ils évolué au fil du temps ? C’est à ces quelques questions que nous tentons de répondre, en observant les différentes interventions de Tchantchès dans les réécritures des aventures des quatre fils Aymon, l’une des œuvres les plus anciennes et les plus fréquemment jouées dans les théâtres liégeois dévolus aux comédiens de bois. [less ▲]

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See detail"Divided families, fractured schooling, in Mexico: educational consequences of children exposition to international migration”
Zuniga, Victor; Vivas Romero, Maria ULg

Report (in press)

This cahier aims to identify and analyze the consequences of international migration movements on the school itineraries and aspirations of children who have been exposed to international migration ... [more ▼]

This cahier aims to identify and analyze the consequences of international migration movements on the school itineraries and aspirations of children who have been exposed to international migration between Mexico and the U. S. Some of these children are active actors of migratory flows because they moved from one country to another. Others are not active migrants; however, given the fact that they belong to divided families due to international migration, they are exposed to the impacts of their family members’ decisions. Consequently, two critical components of their migratory experiences will be the focus of our analysis. Firstly, we will analyze their school trajectory and secondly the family dispersion due to their migratory decisions. [less ▲]

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See detailRobbe-Grillet va plus loin avec l'Express... Le romancier face à l'entretien journalistique
Lorent, Fanny ULg

in Interférences Littéraires = Literaire Interferenties (in press)

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See detailAberrations chromatiques : de l’émulsion au pixel
Thonon, Jonathan ULg

in Cahiers Louis Lumière (in press)

Dans l’une de ses conversations avec Joachim Gasquet sur le sens de sa peinture (et de la peinture en général), Cézanne aborde de front la conception qu’il se fait de la couleur, dans son rapport à la ... [more ▼]

Dans l’une de ses conversations avec Joachim Gasquet sur le sens de sa peinture (et de la peinture en général), Cézanne aborde de front la conception qu’il se fait de la couleur, dans son rapport à la profondeur picturale et de son articulation à la surface : « La nature n'est pas en surface ; elle est en profondeur. Les couleurs sont l'expression, à cette surface, de cette profondeur. Elles montent des racines du monde ». Cet « organisme de couleurs » que constitue le monde est transcrit dans la peinture de Cézanne par une dynamique symbiotique de la couleur et du dessin, de la ligne et du pan. La couleur restitue, par sa masse, son surgissement, son homogénéité, presque sa viscosité, la véritable chaire perceptive du monde ; une vision qui tient à distance la perspective géométrique, photographique, cinématographique fondée sur la transparence et qui repose, comme le signale Merleau-Ponty, sur la « réversibilité des dimensions » (surface-profondeur) et l’entrelacement des choses. C’est cette épaisseur du visible rendu par la couleur que l’économie de l’image numérique nous permet de redécouvrir, moins dans le registre de la « tactilité » de l’image et la picturalité du pixel, que par l’intégration, entre le support et l’image (parfois indiscernables dans le régime optique), d’un « corps » algorithmique qui règle l’actualisation du visible. Certains défauts techniques du dispositif numérique, aujourd’hui élevés au rang de pratique artistique, permettent de révéler cette matrice qui utilise alors la couleur et la coulure comme mode de visibilité. C’est le cas du Datamoshing, technique de composition numérique qui revisite tout en la radicalisant la pratique de l’incrustation vidéo. Basée sur la perturbation volontaire d’éléments de la matrice, cette technique transforme les couleurs en une forme malléable et fluide révélant ainsi leur double nature spatiale : elles sont à la fois dans l’espace de l’image et l’espace de l’image lui-même. Ces expériences de défigurations d’images s’inscrivent dans le registre des « aberrations chromatiques » dont nous proposons ici une rapide généalogie avant d’interroger la couleur digitale dans ses spécificités. [less ▲]

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See detailShort-term effects of tillage practices and crop residue exportation on earthworm communities and soil physico-chemical properties in silt loam arable soil (Belgium)
Lemtiri, Aboulkacem ULg; Colinet, Gilles ULg; Alabi, Taofic ULg et al

in Soil & Tillage Research (in press)

Earthworms are known to play integral roles in soils, and are often referred to as vital soil and ecosystem engineers. They have the ability to influence a wide range of chemical, physical, and biological ... [more ▼]

Earthworms are known to play integral roles in soils, and are often referred to as vital soil and ecosystem engineers. They have the ability to influence a wide range of chemical, physical, and biological properties of soil environment. In the present study, earthworm and soil samples were collected from wheat cultivated fields in Gembloux, Belgium under four agricultural practices: (1) conventional tillage with crop residues incorporated into the soil (CT/IN); (2) conventional tillage with crop residues exported from the field (CT/OUT); (3) reduced tillage with crop residues incorporated into the soil (RT/IN); and (4) reduced tillage with crop residues exported from the field (RT/OUT). The different agricultural practices were applied on luvisol soil for four consecutive years prior to the initiation of the current study. The purpose of this study was to research the influence of agricultural practices on earthworms with considering species and their interactions with soil properties. Results indicated that agricultural practices affected soil properties and earthworm communities. For each depth, measures of soil physico-chemical properties showed significant differences among treatments. The penetration resistance (PR) measured to a depth of 50 cm increased with increasing soil depth in all treatments. PR was significantly higher in RT compared with CT. Soil moisture was measured before PR determination. Soil samples showed higher P and K concentrations in 0 – 10 cm depth compared with other depths. The main reason for the large K and P accumulation near the soil surface is the incorporation of crop residues. Significant differences were not detected between residue incorporation depth treatments, where results showed mean earthworm abundance was respectively 182 and 180 individuals m-2 in CT and RT. Mean earthworm biomass was similarly not significantly different between CT and RT, where results were respectively 48.5 and 57.3 g.m-2. However, a significant difference was observed between IN and OUT treatments, suggesting the exportation of crop residues will limit earthworm abundance and biomass, and will mask the effect of tillage. The endogeic species Apporectodea caliginosa strongly dominated the earthworm community (64%), whereas epigeic and anecic species remained < 3% and 5% of all earthworms. Findings indicate that endogeic and epi-anecic groups appears to be highly affected by tillage practice and the exportation of crop residues. Consequently, it seems that the effect of residue exportation was stronger than tillage effect. In compacted soils, L. terrestris, L. castaneus and A. caliginosa species showed an increased abundance. The obtained results were attributable to earthworm activity and crop residues, suggesting earthworms contributed to nutrient dynamics and soil structure, particularly at increased soil depths. Overall, the results emphasise the influence of crop residues exportation on earthworm community and also, the important influence of earthworm activity on soil physico-chemical properties change, processes which are closely linked. [less ▲]

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See detailContraintes Socio-économiques de Répartition des Terres et Impacts sur la Conservation des Sols dans les Hauts Plateaux de l’Ouest du Cameroun
Djoukeng, Henri Grisseur ULg; Dogot, Thomas ULg; Tankou, Christopher Mubeteneh et al

in Tropicultura (in press)

This article combines the social survey data on access to land and those of the adoption of tied ridging as soil conservation technique to help better understand the management of erosion and runoff by ... [more ▼]

This article combines the social survey data on access to land and those of the adoption of tied ridging as soil conservation technique to help better understand the management of erosion and runoff by farmers in the Western Highlands of Cameroon, specifically in the hills of Fongo-Tongo villages’ group. The study focused on 230 plots owned by 157 respondents on 158 people inventoried. Five main modes of access to land were listed as: inheritance, purchase, temporary transfers, donations and rental. The owners and operators of the hills of gentle slopes (between11% and 17%) and steepest slopes (between 22% and 29%) were inventoried. Two main social ranks were identified: the dignitaries (Chiefs, Notables, Elites and heirs) and other (non-heirs son and women). The study showed that the agronomic abilities of plots as recognized by farmers are a key factor in the implementation of soil conservation techniques. The peasant approach of soil fertility has been scientifically proven by the physicochemical analysis of soil samples taken under plant species used locally as indicator of soil fertility (Pennisetum spp on fertile soils and Imperata cylindrica and Melinis minutiflora on poor soils). The study showed that access to land, adoption of tied ridging and slope exploitation were significantly influenced by the socio-economic status of farmers (p <0.05). [less ▲]

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See detailJuvenal in Antinoë. Paleographic and Contextual Observations on P.Ant. s.n.
Macedo, Gabriel ULg

in Urbanik, Jakub (Ed.) Proceedings of the 27th International Congress of Papyrology. Warsaw, 29 July - 3 August 2013 (in press)

Paleographic and contextual study of the only Juvenal manuscript found in Egypt.

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See detailEpreuves de crédibilité du "citoyen-expert" dans un processus décisionnel. "Il peut", "il sait", "il argumente"
Parotte, Céline ULg; Piet, Grégory; Rossignol, Nicolas ULg

in Fourniau, Jean-Michel; Neveu, Catherine; Monnoyer-Smith, Laurence (Eds.) Démocratie, pour quoi faire? (in press)

Si les mécanismes de démocratie participative sont de plus en plus souvent convoqués au cœur de nos systèmes de démocratie représentative (Sintomer, Blondiaux, 2002), devons-nous considérer de facto que ... [more ▼]

Si les mécanismes de démocratie participative sont de plus en plus souvent convoqués au cœur de nos systèmes de démocratie représentative (Sintomer, Blondiaux, 2002), devons-nous considérer de facto que le citoyen a une influence dans le processus décisionnel? La participation est-elle le moyen de rendre légitime le rôle et le poids du citoyen dans le processus décisionnel ou a contrario est-elle un moyen supplémentaire pour l’autorité publique de renforcer la légitimité de son action, indépendamment des attentes du citoyen ? Si ce dernier n’était pas légitime, pourrait-il être crédible ? Sur base d’une analyse comparative de cinq conflits d’implantation, nous établirons que, d’une part, l’impératif délibératif (Sintomer, Blondiaux, 2002) est traversé par une logique d’action symbolique envers le citoyen (autrement dit, légitimer le processus par sa présence) et une logique d’intérêts des acteurs, en particulier, l’autorité publique. Confronter à cette double logique, nous proposerons de mettre en exergue les différentes formes d’appropriation de la participation par le citoyen [less ▲]

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See detailState Created Barriers to Exit - The Example of the Acquisition of Alstom by General Electric
Petit, Nicolas ULg

in Competition Policy International (in press)

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See detailOrigine et histoire de la folie : un nouveau Foucault, un nouveau fou
Englebert, Jérôme ULg

in Evolution Psychiatrique (in press)

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See detailIntercomparison of in-situ NDIR and column FTIR measurements of CO2 at Jungfraujoch
Schibig, M. F.; Mahieu, Emmanuel ULg; Henne, S. et al

in Atmospheric Chemistry and Physics (in press)

We compare two CO2 time series measured at the High Alpine Research Station Jungfraujoch (3580 m a.s.l., Switzerland) in the period from 2005 to 2013 with an in-situ surface measurement system using a ... [more ▼]

We compare two CO2 time series measured at the High Alpine Research Station Jungfraujoch (3580 m a.s.l., Switzerland) in the period from 2005 to 2013 with an in-situ surface measurement system using a nondispersive infrared analyzer (NDIR) and a ground-based remote sensing system using solar absorption Fourier Transform Infrared spectrometry (FTIR). Although the two data sets show an absolute shift of about 13 ppm, the slopes of the annual CO2 increase are in good agreement within their uncertainties. They are 2.04 ± 0.07 19 ppm yr-1 and 1.97 ± 0.05 ppm yr-1 for the FTIR and the NDIR system, respectively. The seasonality of the FTIR and the NDIR system is 4.46 ± 1.11 ppm and 10.10 ± 0.73 ppm, respectively. The difference is caused by a dampening of the CO2 signal with increasing altitude due to mixing processes. While the minima of both data series occur in the middle of August, the maxima of the two datasets differ by about ten weeks, the maximum of the FTIR measurements is in middle of January, whereas the maximum of the NDIR measurements is found at the end of March. Sensitivity analyses revealed that the air masses measured by the NDIR system at the surface of Jungfraujoch are mainly influenced by central Europe, whereas the air masses measured by the FTIR system in the column above Jungfraujoch are influenced by regions as far west as the Caribbean and the United States. [less ▲]

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See detailCo-simulation of Electromagnetic Transients and Phasor Models: a Relaxation Approach
Plumier, Frédéric ULg; Aristidou, Petros; Geuzaine, Christophe ULg et al

in IEEE Transactions on Power Delivery (in press)

Co-simulation opens new opportunities to combine mature ElectroMagnetic Transients (EMT) and Phasor-Mode (PM) solvers, and take advantage of their respective high accuracy and execution speed. In this ... [more ▼]

Co-simulation opens new opportunities to combine mature ElectroMagnetic Transients (EMT) and Phasor-Mode (PM) solvers, and take advantage of their respective high accuracy and execution speed. In this paper, a relaxation approach is presented, iterating between an EMT and a PM solver. This entails interpolating over time the phasors of the PM simulation, extracting phasors from the time evolutions of the EMT simulation, and representing each sub-system by a proper multiport equivalent when simulating the other sub-system. Various equivalents are reviewed and compared in terms of convergence of the PM-EMT iterations. The paper also considers the update with frequency of the Thévenin impedances involved in the EMT simulation, the possibility to compute the EMT solution only once per time step, and the acceleration of convergence through a prediction over time of the boundary variables. Results are presented on a 74-bus, 23-machine test system, split into one EMT and one PM sub-system with several interface buses. [less ▲]

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See detailStructure and floristic composition of Kibira rainforest, Burundi
Hakizimana, Dismas; Huynen, Marie-Claude ULg; Hambuckers, Alain ULg

in Tropical Ecology (in press), 59(1),

This paper gives the results of the first census of trees in the 32.15 ha plot in order to provide tree species richness in Kibira rainforest (Burundi). All trees ≥ 10 cm dbh were permanently tagged and ... [more ▼]

This paper gives the results of the first census of trees in the 32.15 ha plot in order to provide tree species richness in Kibira rainforest (Burundi). All trees ≥ 10 cm dbh were permanently tagged and their girth measured. The forest structure pattern analysed were diameter at breast height (dbh), basal area, relative dominance, and relative density, Importance Value Index (IVI) and Family Importance Value (FIV). In total, 6504 trees representing 70 species, 67 genera and 37 families were recorded. Tree density was 202 stems/ha, with a basal area of 21.05m²/ha. Seventeen families were represented by a single species each, eleven families were represented by two species each, five families were represented by three species each, and four families were represented by four species each. The most important families in relation to FIV were Euphorbiaceae, Myrtaceae and Araliaceae. Macaranga kilimandscharica, Syzygium guineense and Polyscias fulva were the most important species in relation to IVI. Two tree species were found to be endemic to the Albertine Rift and one species probably endemic to the Albertine Rift. The Shannon-Weiner index (H') and eveness index (J') were respectively 3.18 and 0.75. This study provides a baseline for the management of Kibira National Park. As local communities still depend on forest resources, conservation awareness-raising and education actions have to focus in nearby villages, and growing some fast-growing native trees in the vicinity of the settlement, would be helpful for local communities, this would reduce their dependence on forest resources. [less ▲]

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See detailConfesseur du Prince : un profil singulier ? L’exemple de la cour espagnole de Bruxelles au XVIIe siècle.
Pirlet, Pierre-François ULg

in Les clergés de cour en Europe (fin XVe siècle - XVIIIe siècle). Service religieux et service politique dans les systèmes curiaux - Actes du colloque[Titre à préciser] (in press)

Au cœur de l'espace de la cour, le confesseur du Prince présente un profil singulier. La relation qu'il entretient avec son pénitent est unique : tenu à l'obéissance envers le souverain ou son ... [more ▼]

Au cœur de l'espace de la cour, le confesseur du Prince présente un profil singulier. La relation qu'il entretient avec son pénitent est unique : tenu à l'obéissance envers le souverain ou son représentant pour les aspects temporels, ce religieux a la faculté unique d'examiner, de conseiller et de juger la spiritualité du premier personnage de l'État. Attaché à la personne du Prince, les relations de cet ecclésiastique avec les autres courtisans ne peuvent être appréhendées au moyen d'une grille de lecture hiérarchisant les rapports sociaux : échappant à l'organisation laïque – mais pas protocolaire – de la cour et ne dépendant pas directement de la Chapelle royale, le confesseur bénéficie d'une autonomie relative. En outre, son pouvoir politique, en partie officiel grâce aux dignités et charges dont ce religieux est pourvu, est avant tout perçu comme une magistrature d'influence à la portée difficilement mesurable. Enfin, les obligations matérielles liées à l'appartenance de ce prélat à un ordre religieux achèvent de distinguer cet ecclésiastique des autres serviteurs princiers. Cette communication visera à distinguer les particularités de la charge de confesseur princier au sein de la société de cour. L'étude portera particulièrement sur la cour de Bruxelles durant la première moitié du xviie siècle. [less ▲]

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See detailThe right dorsal premotor mosaic: organization, functions, and connectivity
Genon, Sarah ULg; Li, Hai; Fan, Lingzhong et al

in Cerebral Cortex (in press)

The right dorsal premotor cortex (PMd) of humans has been reported to be involved in a broad range of motor and cognitive functions. We explored the basis of this behavioral heterogeneity by performing a ... [more ▼]

The right dorsal premotor cortex (PMd) of humans has been reported to be involved in a broad range of motor and cognitive functions. We explored the basis of this behavioral heterogeneity by performing a connectivity-based parcellation using meta-analytic approach applied to PMd coactivations. We compared our CBP results to parcellations obtained through resting-state functional connectivity and probabilistic diffusion tractography,. Functional connectivity profiles and behavioral decoding of the resulting PMd subregions allowed characterizing their respective behavior profile. These procedures divided the right PMd into five distinct subregions that formed a cognitive-motor gradient along a rostro-caudal axis. In particular, we found (i) a rostral subregion functionally connected with prefrontal cortex, which likely supports high-level cognitive processes, such as working memory (ii) a central subregion showing a mixed behavioral profile and functional connectivity to parietal regions of the dorsal attention network, and (iii) a caudal subregion closely integrated with the motor system. Additionally, we found (iv) a dorsal subregion, preferentially related to hand movements and connected to both cognitive and motor regions, and (v) a ventral subregion, whose functional profile fits the concept of an eye-movement related field. In conclusion, right PMd may be considered as a functional mosaic formed by five subregions. [less ▲]

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See detailA Validation of the French Version of the Attitudes to Aging Questionnaire (AAQ): Factor Structure, Reliability and Validity
Marquet, Manon ULg; Missotten, Pierre ULg; Schroyen, Sarah ULg et al

in Psychologica Belgica (in press)

Introduction: The Attitudes to Aging Questionnaire (AAQ) was developed to measure attitudes toward the aging process as a personal experience from the perspective of older people. The present study aimed ... [more ▼]

Introduction: The Attitudes to Aging Questionnaire (AAQ) was developed to measure attitudes toward the aging process as a personal experience from the perspective of older people. The present study aimed to validate the French version of the AAQ. Participants and methods: This study examined factor structure, acceptability, reliability and validity of the AAQ’s French version in 238 Belgian adults aged 60 years or older. In addition, participants provided information on demographics, self-perception of their mental and physical health (single items), quality of life (WHOQOL-OLD) and social desirability (DS-36). Results: Exploratory Factor Analysis produced a three-factor solution accounting for 36.9% of the variance. No floor or ceiling effects were found. The internal consistency, measured by Cronbach’s alpha coefficients for the AAQ subscales were 0.62 (Physical Change), 0.74 (Psychological Growth), and 0.75 (Psychosocial Loss). A priori expected associations were found between AAQ subscales, self-reported health and quality of life, indicating good convergent validity. The scale also showed a good ability to discriminate between people with lower and higher education levels, supporting adequate known-groups validity. Finally, we confirmed the need to control for social desirability biases when assessing self-reported attitudes toward one’s own aging. Conclusion: The data support the usefulness of the French version of the AAQ for the assessment of attitudes toward their own aging in older people. [less ▲]

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