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See detailComparison of individuals’ susceptibility to false memory induced by both DRM and misinformation paradigms involving emotional material
Martial, Charlotte ULg; Dehon, Hedwige ULg

Poster (2015, September)

False memories induced by the DRM procedure (“Deese, Roediger and McDermott”; Deese, 1959; Roediger & McDermott, 1995) or the misinformation procedure (in which a person’s recollection of a witnessed ... [more ▼]

False memories induced by the DRM procedure (“Deese, Roediger and McDermott”; Deese, 1959; Roediger & McDermott, 1995) or the misinformation procedure (in which a person’s recollection of a witnessed event is altered after exposure to misinformation about this event; Loftus et al., 1978) are due to errors in source monitoring processes (e.g., Johnson et al., 1993) and one might expect the correlation between these false memories quite positive. However, the few laboratory studies comparing the DRM paradigm and the misinformation paradigm show small (Zhu et al., 2013) or no correlation (Ost et al., 2013) between the false memories elicited by these procedures. However, these studies vary in terms of methodological details. For instance, false memories from the misinformation procedure involved emotional content while those from the DRM procedure only included neutral materials. This study investigated the relationship between false memories induced by two different paradigms (a DRM task and a misinformation procedure) both involving an emotional material. Participants (N = 154) completed an emotional variant of the DRM (neutral, positive and negative lists) and the misinformation (neutral, positive and negative images) procedures and their performances on both tasks were compared. Although both paradigms reliably induced false memories in participants, our analyses revealed only a marginally weak positive correlation (r = .147, p = .051) between misinformation and DRM false memories using emotional variants. These results support the idea that DRM and misinformation false memories are underpinned by (at least in part) different mechanisms and that the previous mixed results were not due to the specific content of the DRM or the misinformation task used. [less ▲]

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Peer Reviewed
See detailFish as aquatic "sniffer dogs": Olfactory-mediated behaviors and conditioning of common carps to cadaver odors
Jamandre, Brian Wade ULg; Ferrari, Frederic; Joseph, Jean-Ronald et al

Conference (2015, September)

Even with the aide of modern technology, the search for cadaver or human remains underwater is still assisted by sniffer dogs mainly because of their superior sense of olfaction. However, dogs rely on ... [more ▼]

Even with the aide of modern technology, the search for cadaver or human remains underwater is still assisted by sniffer dogs mainly because of their superior sense of olfaction. However, dogs rely on volatile organic compounds in the air and that this may constraint their ability when searching for submerged cadavers. On the other hand, it has long been recognized that fishes use olfaction to sample odors from their surroundings to accomplish a task and are capable of acquiring new skills through training or conditioning. Despite decades of experimental and observational studies of the olfactory sensitivities of fishes, its potential application to forensic sciences has never been truly explored. In this pioneering research, we explore the possibility of using fish olfaction in detecting cadaver odors (porcine origin), using common carps Cyprinus carpio as model species in a series of experiments under laboratory conditions. We first observed the innate behavior of carps towards cadaver odors. Afterwards, the carps were trained in two-choice chamber experimental tanks by appetitive olfactory conditioning and odor masking methods. We also experimented on the effects of cadaver odors by early exposure using eggs and larval impregnation techniques, and observing the behaviors when they develop to early juveniles. In general, we found out that common carps are naturally repelled to cadaver odors. However using our devised conditioning protocol, results show that the conditioned carps were able to learn to be attracted to cadaver odors despite their innate aversion. The development of fish for cadaver detection is a simple but innovative idea and that it may present a cost-effective and reliable solution for the shortcomings of the existing methods in underwater cadaver search. We anticipate that this research will open up a variety of different studies in pursuit of developing fishes as biosensors and its application to forensic sciences. [less ▲]

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See detailAnnex 60 : subtask 2.2 - Modeling heat transport in district heating networks
Sartor, Kevin ULg

Report (2015)

One subtask of the Annex 60 (Task 2.2) consists in the modeling of district composed by thermal and electric networks. In this contribution, several modeling techniques are investigated to assess the ... [more ▼]

One subtask of the Annex 60 (Task 2.2) consists in the modeling of district composed by thermal and electric networks. In this contribution, several modeling techniques are investigated to assess the behavior of the thermal part of the district heating network. These modeling techniques are compared to find the best modeling approach. [less ▲]

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See detailA new hybrid approach for modelling groundwater flow in karst aquifers
Willems, Thibault ULg; Hakoun, Vivien ULg; Renard, Philippe et al

Conference (2015, September)

Groundwater flow modelling in karst aquifers represents a real challenge that requires adapted methods. The applicability of an innovative hybrid approach for modelling groundwater flow in karst aquifers ... [more ▼]

Groundwater flow modelling in karst aquifers represents a real challenge that requires adapted methods. The applicability of an innovative hybrid approach for modelling groundwater flow in karst aquifers, namely the Hybrid Finite Element Mixing Cell (HFEMC) method, is evaluated. The hybrid approach consists in combining a classical finite element (FE) model, to model slow flow in the rock matrix, with spatially distributed lumped reservoirs, to model fast flow in the karst conduits network. Water exchanges between the rock matrix and the conduits network are accounted for by means of an internal Fourier boundary conditions (BC). This BC (1st order exchange relation) allows to control the magnitude of water transfers between fast and slow flow domains. We tested the applicability of the HFEMC method on a schematic synthetic domain and on a real karst system. In the synthetic case analysis, we discussed dynamic processes of groundwater storage occurring in the karst system during a recharge pulse. The study focuses on the influence of selected parameters on representative variables such as the discharge curve of the karst system or pressure and mass transfers between conduits and rock matrix sub-domains. In this way, an inversion of the hydraulic gradient between karst conduits and the surrounding rock matrix is shown to occur during the recharge pulse. This phenomenon results in a temporary storage of water from conduits to the rock matrix, which impacts the modelled discharge curve. The first test performed on a real study site, the Noiraigue spring karst system (Jura mountains, Switzerland), exemplify the use of two separated lumped reservoirs for describing the conduits network, which allows to consider two base levels in the karst system. It also points out the challenges to face when modelling a complex natural karst system with the HFEMC approach. The results obtained show that the HFEMC approach is a good candidate to model groundwater flow in karst aquifers. [less ▲]

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See detailSAFIR: Capabilities and examples of applications
Gernay, Thomas ULg; Scifo, Anthony ULg; Franssen, Jean-Marc ULg

Report (2015)

This document presents the capabilities of the software SAFIR, as well as examples of applications. SAFIR is a computer program that models the behavior of building structures subjected to fire. The ... [more ▼]

This document presents the capabilities of the software SAFIR, as well as examples of applications. SAFIR is a computer program that models the behavior of building structures subjected to fire. The structure can be made of a 3D skeleton of linear elements such as beams and columns, in conjunction with planar elements such as slabs and walls. Volumetric elements can be used for analysis of details in the structure such as connections. Different materials such as steel, concrete, timber, aluminum, gypsum or thermally insulating products can be used separately or in combination in the model. [less ▲]

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Peer Reviewed
See detailSilurian acritarchs and associated freshwater and marine microfloras from Saudi Arabia: comprehensive review and new insights
Le Hérissé, A.; Steemans, Philippe ULg; Breuer, P. et al

Conference (2015, September)

Detailed reference viewed: 28 (5 ULg)
See detailIconologies contemporaines : une compréhension symbolique de l’image est-elle toujours d’actualité ?
Hagelstein, Maud ULg

Conference (2015, September)

Le problème que je voudrais envisager ici tient à la pertinence de la compréhension symbolique de l’image. Il me semble qu’à première vue, la théorie de l’image contemporaine met en défaut ... [more ▼]

Le problème que je voudrais envisager ici tient à la pertinence de la compréhension symbolique de l’image. Il me semble qu’à première vue, la théorie de l’image contemporaine met en défaut l’interprétation symbolique de l’image. Ce débat peut être rapporté au problème de l’héritage, par les nouvelles générations de spécialistes de l’image, de la discipline de l’ICONOLOGIE et à la réception des travaux des grands historiens/théoriciens de l’art qui l’ont fondée. Depuis la fin des années 1980, de nombreuses tentatives visent à donner au concept d’iconologie un sens actuel. Au point que l’on peut – sans dénaturer cet élan théorique nouveau – parler d’« iconologies contemporaines ». La méthode iconologique vise l’interprétation du contenu symbolique des images. Elle repose donc entièrement sur une compréhension symbolique du visuel, et s’est d’ailleurs nourrie du dialogue avec la philosophie des formes symboliques d’E. Cassirer. Dans le système décrit par Cassirer, l’art se définit en tant que fonction symbolique (ce qui revient à dire = l’art est un domaine de production de significations, dont la vocation principale serait de charger de sens des éléments sensibles/matériels). Cette fonction symbolique particulière serait en outre inscrite dans un devenir historique (puisque le « contenu » des œuvres, les éléments de sens associés aux éléments sensibles, dépend fortement du contexte socio-historique d’inscription et reflète/révèle une vision du monde historiquement déterminée). Depuis la fin des années 1980, cette méthode a commencé à générer chez les théoriciens de l’art et du visuel (en général), toutes sortes de réactions d’insatisfaction – voire même d’hostilité. Les différentes réactions (je vais en détailler trois aujourd’hui : T. Mitchell, G. Didi-Huberman et G. Boehm) s’accordent (ou en tout cas pourraient s’accorder) sur le fait que l’iconologie doit être complétée : l’approche symbolique des œuvres doit par ex. pouvoir s’appuyer sur une attention soutenue à leur matérialité (c’est à cet endroit que les outils « phénoménologiques », notamment, viennent au secours de l’analyse). [less ▲]

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See detailLe Gevarenwinkel Festival de Herselt
Sacré, Robert ULg

E-print/Working paper (2015)

Compte rendu du Festival Gevarenwinkel à HERSELT les 28 et 29 août 2015 , avec photos

Detailed reference viewed: 191 (3 ULg)
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Peer Reviewed
See detailThe Petroglyphs of Huancor, Peru : Form and Meaning
Delnoÿ, David ULg; Otte, Marcel ULg

in EXPRESSION (2015), 9

Detailed reference viewed: 21 (2 ULg)
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See detailVers une "dématérialisation" des droits fondamentaux? Convergence des droits fondamentaux dans une protection fragmentée, à la lumière du raisonnement du juge constitutionnel belge
Rosoux, Géraldine ULg

Book published by Bruylant - Publié avec l'aide financière du Fonds de la Recherche Scientifique-FNRS. (2015)

L'ouvrage examine, au départ du raisonnement du juge constitutionnel belge, l'articulation de la saisine des différents juges, belges et européens, protégeant les droits fondamentaux (articulation ... [more ▼]

L'ouvrage examine, au départ du raisonnement du juge constitutionnel belge, l'articulation de la saisine des différents juges, belges et européens, protégeant les droits fondamentaux (articulation "procédurale" des droits fondamentaux), puis des différentes sources garantissant ces droits fondamentaux (articulation "substantielle" des droits fondamentaux). [less ▲]

Detailed reference viewed: 27 (8 ULg)
See detailBaseline data on the cyanobacterial diversity of Svalbard assessed by pyrosequencing
Laughinghouse IV, Haywood Dail; Stelmach Pessi, Igor ULg; Velázquez, David et al

Poster (2015, September)

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See detailBlues et Wallon - Elmore D, l'intégrale cåzî complète en cinq CDs
Sacré, Robert ULg

E-print/Working paper (2015)

Analyse d'une anthologie de 5 Cds représentant l'intégrale" cåzî "complète des enregsitrements d'Elmore D ( Prof. Daniel Droixhe) pour la compagnie française FREMEAUX et ASS.

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Peer Reviewed
See detailChanges in biting characteristics recorded using the inertial measurement unit of a smartphone reflect differences in sward attributes
Andriamandroso, Andriamasinoro ULg; Lebeau, Frédéric ULg; Bindelle, Jérôme ULg

in Guarino, Marcella; Berckmans, Daniel (Eds.) Precision Livestock Farming '15 (2015, September)

Accurate monitoring of grazing activity at individual cow level would provide useful information to farmers to improve the management of their animals and pastures in intensive dairy systems. Pasture ... [more ▼]

Accurate monitoring of grazing activity at individual cow level would provide useful information to farmers to improve the management of their animals and pastures in intensive dairy systems. Pasture attributes, starting with sward height, influence grazing behaviour and bites characteristics. In an attempt to link sward height to an individual automated detection of biting behaviour, a series of recording sessions of 4×3 days were realized on a ryegrass pasture with two contrasting heights (5 and 15 cm) over the grazing season (from July to October) with 4 dry red-pied cows equipped with the inertial measurement unit (IMU) of a smartphone on a halter, recording acceleration data at 100Hz. The behaviours were video-recorded. The number of grazing bouts performed during grazing trends to increase when the grass is highest. Fourier transforms of acceleration data showed that grazing bouts were characterized by a distinctive acceleration peak which frequency ranged between 1.02Hz and 1.46Hz whatever the sward height. It corresponded to the uprooting of grass frequency in the biting movement when compared with the observation in the video recordings and it could be used to improve automated grazing behaviour detection and to remotely characterize bites. These results show that some bite characteristics are influenced by sward height and automated individual monitoring of grazing behaviour is possible. An extension of this methodology should allow analysing more deeply the grazing behaviour of cattle in order to determine number of bites and possibly to link it to biomass intake. [less ▲]

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See detailImpact of forest transition on non-timber forest products in Centrak Africa
Gillet, Pauline ULg; Vermeulen, Cédric ULg; Feintrenie, Laurène

Conference (2015, September)

The objective of the study is to evaluate the impact of deforestation on non-timber forest products (NTFPs) harvest in Central Africa. The most common vegetal NTFPs are fruits, barks and leaves used as ... [more ▼]

The objective of the study is to evaluate the impact of deforestation on non-timber forest products (NTFPs) harvest in Central Africa. The most common vegetal NTFPs are fruits, barks and leaves used as complements to the staple food (cassava or plantain). Animal NTFPs such as caterpillars, worms and bush meat represent a major source of animal protein in the villagers’ diet. We analyzed the evolution of several parameters including NTFPs diversity, distance to the road, changes in land tenure rules, proportion in the alimentary bolus and in the villagers’ incomes. The research is based on field surveys, participatory mapping and geolocation of activities held in 8 villages. Three study sites are located at different stages on Mather’s forest transition curve (Mather, 1992). This curve shows the relationship between forest cover and population density. The sites represent the situations: (i) important cover of intact forest, (ii) forest partially degraded and under pressure of conversion to other land uses and (iii) small surfaces of degraded forest with a trend of plantation of useful trees on deforested land. Results show a reduction in NTFPs diversity along with the increase of deforestation. The maximum distance of collection sites to the road increases between the first and the second study site, as a consequence of the decrease in the quantity of NTFPs available. This distance decreases significantly in the third study site due to the contraction of villages’ terroir. The diversity of bush meat decreases while the hunting bag evolves from big to small species along with the forest transition. Land tenure rules to access and extract NTFPs become stricter. As a consequence, the proportion of these products reduces in the alimentary bolus and in the family cash income. This analysis establishes a strong link between Mather’s forest transition curve and the decline of the importance of NTFPs in the village production and livelihoods systems [less ▲]

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See detailBrain trains: scenario development to explore intermodal rail transport expansion in, from and towards Belgium
Troch, Frank; Vanelslander, Thierry; Belboom, Sandra ULg et al

Conference (2015, September)

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Peer Reviewed
See detailFabriquer la nature pour la récréation des citadins : le tourisme à la ferme, la « renaturation » d’un service dénaturé ?
Dubois, Charline ULg; Schmitz, Serge ULg

Conference (2015, September)

Beaucoup de personnes associent / confondent les espaces agricoles et espaces de nature, tant au niveau des utilisateurs qu’au niveau des décideurs. A travers l’activité spécifique de l’agritourisme, nous ... [more ▼]

Beaucoup de personnes associent / confondent les espaces agricoles et espaces de nature, tant au niveau des utilisateurs qu’au niveau des décideurs. A travers l’activité spécifique de l’agritourisme, nous voulons interroger la domestication de la nature par les agriculteurs afin qu’elle colle aux représentations des clients urbains. Nous analysons les nouvelles manières de concevoir la campagne et la nature au travers d’activités de loisirs et services récréatifs à la ferme. Certains agriculteurs, voulant diversifier leurs activités, participer au développement local ou récupérer et promouvoir une image valorisante de leur métier, développent de nouveaux produits et services touristiques, culturels, gastronomiques, de bien-être et de santé à destination de la société (Watkins & Matless 2003, Poulot 2011, Aubry & Pourias 2013). Pour accueillir des touristes, les agriculteurs ne doivent-ils pas dénaturer l’activité agricole pour « renaturer » de manière urbaine l’environnement proche ? Les agriculteurs qui choisissent l’agritourisme adaptent ainsi progressivement leurs produits aux attentes des citoyens. Mais quelle limite donner à cette adaptation quand on connaît le lien entre l’activité agricole et l’activité d’accueil à la ferme ? Quelle est l’importance de l’atout nature dans cette diversification ? Nous interrogeons d’abord un corpus de 40 récits de vie auprès d’agriculteurs wallons et luxembourgeois, tenanciers d’une activité de diversification centrée sur le tourisme au sein de leur exploitation agricole (pratiques agricoles différentes, produits touristiques variés, expériences courtes et longues, motivations complexes) (Dubois 2014). Ensuite nous utilisons les résultats d’une enquête réalisée dans la rue auprès de touristes potentiels (sur les 1148 individus interrogés dans 7 pôles touristiques de Wallonie et du Grand-Duché de Luxembourg, 48% se considèrent comme urbain) (Dubois 2014). Nous utilisons enfin une analyse des exploitations agricoles visitées et de leurs abords au travers des éléments et caractéristiques (milieu physique, anthropique, humain, animaux, produits touristiques) mis en avant dans les photos prises sur le terrain et dans les images utilisées pour leur promotion touristique. Les analyses de contenu (analyses qualitatives avec NVivo®) et les analyses statistiques (analyses quantitatives avec Statistica®) font ressortir que le concept de nature mis en avant se focalise aux paysages, aux promenades et au calme : notamment des paysages que la personne peut observer depuis la terrasse, des promenades balisées de courte durée et un calme qui invite au repos et où la personne se sent en sécurité. La nature voulue par les urbains est une nature très sélective et cadrée. Mais même si les agriculteurs évoluent dans leur finage, il existe des initiatives et des stratégies différentes : la plupart des agriculteurs se contentent de domestiquer la nature au abords de la ferme pour faire paraître un cadre agréable et sécurisant, se gardant de modifier leur pratiques agricoles dans les champs avoisinants, d’autres, minoritaires, on prévu des parcours de découvertes et des activités intégrées dans la nature tels les golfs fermiers. [less ▲]

Detailed reference viewed: 29 (3 ULg)