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Peer Reviewed
See detailAn exploratory approach to transitivizing morphemes in French
Mazziotta, Nicolas ULg; Martin, Fabienne

in Wielfaert, Thomas; Heylen, Kris; Speelman, Dirk (Eds.) Proceedings of the 5th Conference on Quantitative Investigations in Theoretical Linguistics (2013)

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See detailExploratory data analysis and clustering of multivariate spatial hydrogeological data by means of GEO3DSOM, a variant of Kohonen's Self-Organizing Map
Peeters, Luk; Bacao, R.; Lobo, V. et al

in Hydrology and Earth System Sciences (2007), 11(4), 1309-1321

The use of unsupervised artificial neural network techniques like the self-organizing map (SOM) algorithm has proven to be a useful tool in exploratory data analysis and clustering of multivariate data ... [more ▼]

The use of unsupervised artificial neural network techniques like the self-organizing map (SOM) algorithm has proven to be a useful tool in exploratory data analysis and clustering of multivariate data sets. In this study a variant of the SOM-algorithm is proposed, the GEO3DSOM, capable of explicitly incorporating three-dimensional spatial knowledge into the algorithm. The performance of the GEO3DSOM is compared to the performance of the standard SOM in analyzing an artificial data set and a hydrochemical data set. The hydrochemical data set consists of 131 groundwater samples collected in two detritic, phreatic, Cenozoic aquifers in Central Belgium. Both techniques succeed very well in providing more insight in the groundwater quality data set, visualizing the relationships between variables, highlighting the main differences between groups of samples and pointing out anomalous wells and well screens. The GEO3DSOM however has the advantage to provide an increased resolution while still maintaining a good generalization of the data set. [less ▲]

Detailed reference viewed: 118 (12 ULg)
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See detailExploratory evaluation of the influence of honey bee colonies on Brassica napus L.
Nguyen, Bach Kim ULg; Quievy, Samuel; Mignon, Jacques ULg

Poster (2009, September 16)

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See detailExploratory Study of Depressed Adolescents’ Life Narratives
Boulard, Aurore ULg

in Psychologica Belgica (2015), 55(2), 87-100

The aim of this study was to explore the life stories of depressive adolescents and compare them with non-clinical adolescents’ life stories.

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See detailExploratory study of narratives in children with attention deficit hyperactivity disorder
Boulard, Aurore ULg; Pignatiello, Laure ULg; Leclercq, Cédric

Poster (2015, July 21)

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See detailAn exploratory study on the use of enzyme activities as sediment tracers: Biochemical fingerprints?
Nosrati, K.; Govers, G.; Ahmadi, H. et al

in International Journal of Sediment Research (2011), 26(2), 136-151

Little information exists on the potential of soil enzyme activities, which are sensitive to soil properties and management, for the characterization of sediment sources at the catchment scale. The ... [more ▼]

Little information exists on the potential of soil enzyme activities, which are sensitive to soil properties and management, for the characterization of sediment sources at the catchment scale. The objective of this study is to explore and evaluate enzyme activity as tracer for sediment fingerprinting in the Hiv catchment (55 km2), Iran. Therefore, four enzymes were measured from 42 different sampling sites, covering three sediment source areas (rangeland/surface erosion, orchard/surface erosion, and streambank erosion), as well as from 12 sediment samples from reservoir check dams (sediment sinks). The results indicate that, based upon backward mode discriminant analysis, β-glucosidase and dehydrogenase, allowed more than 95% of the samples to be correctly assigned to their source areas. These enzymes were selected as input data for a mixing-model to determine the relative contribution of the sampled sediment sources. The mean contributions from rangeland, orchard and streambank sources in the study area were estimated as 11.3%, 15.1% and 73.7%, respectively. Using geochemical tracers, the mean contribution from rangeland, orchard and streambank sources was estimated as 14.1%, 9.5% and 74.8%, respectively. Combined biochemical and geochemical tracers, similar values were obtained (18.7%, 10.7% and 70.7%, respectively). Our results indicate that soil enzyme activity allows for a good characterization of sediment sources, and can provide a complementary tool to currently existing sediment fingerprinting approaches. However, the method should be also tested in other regions. © 2011 International Research and Training Centre on Erosion and Sedimentation and the World Association for Sedimentation and Erosion Research. [less ▲]

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See detailExploratory survey on acid base derangements in horses suffering from atypical myopathy
Van Galen, Gaby ULg; Cerri, Simona ULg; Porter, Sarah et al

in Proceedings BEVA 2011 (2011, September 08)

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See detailExplorer l'exposé : s'informer et écrire pour prendre la parole en classe de la fin du primaire à la fin du secondaire
Dumortier, Jean-Louis ULg; Van Beveren, Julien ULg; Dispy, Micheline ULg

Book published by Presses Universitaires de Namur (2012)

Une très modeste enquête sur l'exposé, menée en CFWB auprès d'enseignants du primaire et du secondaire supérieur, nous a permis de dresser ces deux constats. 1° Lors des activités scolaires d'exposé, l ... [more ▼]

Une très modeste enquête sur l'exposé, menée en CFWB auprès d'enseignants du primaire et du secondaire supérieur, nous a permis de dresser ces deux constats. 1° Lors des activités scolaires d'exposé, l'attention est focalisée sur la performance : le plus souvent, ce qui devrait se faire en amont et en aval de celle-ci est passé sous silence ou négligé et, à tout le moins, ne donne pas lieu à des tâches préparatoires. 2° Les ressources à mobiliser avant, pendant et après la présentation d'un exposé font très rarement l'objet d'une programmation. Principalement adressé aux enseignants, à leurs formateurs et conseillers, le présent ouvrage peut apparaitre comme une réaction à ces deux constats. Trois parties le constituent : une réflexion théorique sur le genre de l'exposé, des propositions d'activités destinées aux élèves du dernier degré de l'enseignement primaire et des trois degrés de l'enseignement secondaire et, enfin, une proposition de programmation relative à l'exposé, qui couvre ces mêmes étapes de la scolarité. (Texte de la 4e de couverture) [less ▲]

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See detailExplorer la banque de graines du sol pour mieux comprendre la dynamique de régénération des forêts tropicales africaines (synthèse bibliographique)
Douh, Chauvelin ULg; Daïnou, Kasso ULg; Loumeto, Jean Joël et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2014), 18(4), 558-565

La banque de graines du sol des forêts denses humides africaines a été très peu étudiée, alors qu’elle pourrait jouer un rôle déterminant dans les cycles sylvigénétiques naturels. Elle pourrait également ... [more ▼]

La banque de graines du sol des forêts denses humides africaines a été très peu étudiée, alors qu’elle pourrait jouer un rôle déterminant dans les cycles sylvigénétiques naturels. Elle pourrait également être avantageusement utilisée dans les programmes de restauration, à l’instar de ce qui se fait sur d’autres continents. La présente synthèse bibliographique fait le point sur les connaissances actuelles relatives à la banque de graines du sol, en mettant l’accent sur le continent africain. Elle montre qu’une meilleure caractérisation de la banque de graines du sol des différentes communautés végétales constituerait une contribution notable pour la gestion durable des forêts tropicales d’Afrique. [less ▲]

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See detailExplorer la diversité
Partoune, Christine ULg

in Manço, Ural; Amoranitis, Spyros (Eds.) Développer le mainstreaming de la diversité - Recueil analytique d'outils d'intervention pour la valorisation de la diversité (2010)

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See detailExplorer la variation graphique dans les sources hiératiques de l’époque ramesside : Le scribe Amennakhte, sa main, son école
Polis, Stéphane ULg

Scientific conference (2016, December 07)

L'exposé est articulé en trois parties. Il s'ouvre sur un typologie de la variation dans les sources hiératiques du Nouvel Empire et vise à explorer les causes de cette dernière. Après quelques éléments ... [more ▼]

L'exposé est articulé en trois parties. Il s'ouvre sur un typologie de la variation dans les sources hiératiques du Nouvel Empire et vise à explorer les causes de cette dernière. Après quelques éléments de contextualisation concernant la communauté des ouvriers de la Tombe à Deir el-Médineh, la seconde partie est consacrée, d'une part, à la question de la construction de la norme - entre enseignement collectif et apprentissage individuel - et, d'autre part, à la diversité de la performance écrite (à travers l'examen de textes littéraires produits par Amennakhte et son ‘école’). En conclusion, je présente trois cas illustrant des voies fructueuses dans l'identification des mains de scribes et le regroupement de documents sur base paléographique. [less ▲]

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See detailExplorer les secrets du patrimoine cheveux.
Franchimont, Claudine ULg; Pierard, Gérald ULg

in Skin (2002), 5

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See detailExploring a Mediterranean mesozooplankton 13 year time-series.
Fullgrabe, Lovina; Richir, Jonathan ULg; Batigny, Antoine et al

Poster (2016, December 16)

Zooplankton plays diverse crucial roles within the marine ecosystem and can also be used as bio- indicator of climate changes since it is very sensitive to environmental changes. Therefore it is essential ... [more ▼]

Zooplankton plays diverse crucial roles within the marine ecosystem and can also be used as bio- indicator of climate changes since it is very sensitive to environmental changes. Therefore it is essential to consider long-term plankton series. Given the analysis of plankton samples is time- consuming, it requires an effective and rapid analytical method. We have used in this work a supervised learning approach adapted for the semi-automatic classification of digital images of the mesozooplankton of the Bay of Calvi (Corsica, France) by using the Zoo/PhytoImage software. Together with a 11-years long zooplankton time-series, a set of nine environmental variables were monitored in order to identify controlling factors and determine whether the communities were sensitive to global environmental changes. The main components of the mesozooplankton community were characterized by both seasonal and inter-annual variability. Additionally, variation of holoplankton and meroplankton differentiated one from each other. The holoplanktonic community could be split into two subgroups according to its variation in function of the environment: cladocerans and appendicularians, and to a lesser extent, copepods on one hand, and cnidarians, chaetognathes and thaliaceans, on the other hand. Regarding inter-annual variation, one year (2007) showed particularly low production of total zooplankton which was also the case for all the different holoplanktonic taxa. Accounting for that phenomenon were identified some potentially underlying environmental factors. Finally, although water temperature increased significantly over the last years along with the frequency of marine heat wave events, no evident change in the global zooplankton composition was observed yet. [less ▲]

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See detailExploring Advantages of 4He-PIXE for layered Objects in Cultural Heritage
Röhrs, Stefan; Calligaro, Thomas; Mathis, François ULg et al

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2006), 249

Detailed reference viewed: 10 (2 ULg)
See detailExploring ancient charcoal archives in Central Africa
Hubau, Wannes; Morin-Rivat, Julie ULg; Van den Bulcke, Jan et al

Conference (2012, July)

Fossil pollen and charcoal fragments are preserved in lake sediments, in forest soils and in ancient human settlements, were they can be accompanied by artifacts. As such, vegetation history is remarkably ... [more ▼]

Fossil pollen and charcoal fragments are preserved in lake sediments, in forest soils and in ancient human settlements, were they can be accompanied by artifacts. As such, vegetation history is remarkably well archived and sometimes closely linked to cultural history. Direct evidence for Central African vegetation history has been mainly derived from pollen analysis, while the charcoal archive remains hardly explored. However, analysis of charred wood remains has proven worthwhile for palaeovegetation reconstructions in temperate and arid regions. One of the main challenges for charcoal identification in tropical regions is species diversity. Therefore we developed and present a transparent charcoal identification protocol within an umbrella database of species names and metadata, compiled from the on-line database of wood-anatomical descriptions (InsideWood), the database of the world’s largest reference collection of Central African wood specimens (RMCA, Tervuren, Belgium) and inventory and indicator species lists. We applied the protocol on radiocarbon dated charcoal collections sampled in the Mayumbe forest (Bas-Congo, DRCongo), in human settlements along the Aruwimi and Lomami rivers (Province Orientale, DRCongo), along the Sangha river (Sangha department, Republic of the Congo) and in Pallisco logging concessions (East Province of Cameroon). First charcoal identification results are promising and sometimes seem to be taxonomically more precise than pollen identification. However, next to opportunities, we also present some pitfalls when exploring ancient charcoal archives. [less ▲]

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See detailExploring brain connectivity: a new frontier in systems neuroscience
Ramnani, Narander; Lee, Lucy; Phillips, Christophe ULg et al

in Trends in Neurosciences (2002), 25(10), 496-497

Detailed reference viewed: 28 (1 ULg)
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See detailExploring Consumer Evaluations of e-Services: A Portal Site
Van Riel, Allard ULg; Liljander, Veronica

in International Journal of Service Industry Management (2001), 12(4), 359-377

Detailed reference viewed: 214 (3 ULg)
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See detailExploring EI in Belgium: a New Theoretical and Empirical Way to Deal with Environmental Conflicts in Urban Areas?
Lejeune, Zoé ULg

Conference (2013, September)

Environmental Inequalities (EI) –the unequal distribution of environmental goods and ‘bads’ among space and population– are a field of research at the crossroads of political science, socio-legal studies ... [more ▼]

Environmental Inequalities (EI) –the unequal distribution of environmental goods and ‘bads’ among space and population– are a field of research at the crossroads of political science, socio-legal studies, and urban research. Unlike US Environmental Justice movement, environmental inequalities are not seen by actors, or studied, as a specific frame for action and collective mobilisation in Belgium in environmental matters. Environmental conflicts are however numerous in urban areas in Belgium where industrial activities and housing cohabit. In this paper, I introduce the topic of environmental inequalities in Belgium and analyse the unequal consequences of urban policy in Belgium in terms of environmental quality and access to amenities, more precisely, of uneven access to ‘quality of life’ in a context of ‘anti-urban policy’. Environmental inequalities invite us to think about democracy in the cities (citizen participation, equal access to environmental quality of life) and about litigation and legal opportunities for individuals and groups in environmental conflicts. This paper questions the possibility of alternative modes of public regulation in a ‘social and environmental justice in the city’ perspective that could better integrate social and environmental issues. This paper explores (1) how environmental NGOs and individuals can mobilise the law to denounce environmental conflicts and inequalities providing insights into an environmental inequalities perspective on access to justice in environmental lawsuits. It then studies (2) how current urban policy in Belgium can contribute to explaining these inequalities. Empirical evidence relies, on the one hand, on legal texts, public policy analysis and litigation cases and, on the other hand, on exploratory interviews with stakeholders in Belgium –main political parties, environmental non-profit organizations, legal practitioners, trade unions and scientific institutions. [less ▲]

Detailed reference viewed: 30 (3 ULg)