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See detailExploratory Single Grain OSL data analysis of quartz from archeological mortars: on the use of an exponential distribution of light exposure of grains and consequences for dating
Guibert, Pierre; Urbanova, Petra; Blain, Sophie ULg et al

in Radiation Measurements (in press)

Dating archaeological mortar by OSL is one of the challenging objectives leading to the chronology of ancient constructions. Single grain OSL analysis is a very convenient tool to examine the bleaching ... [more ▼]

Dating archaeological mortar by OSL is one of the challenging objectives leading to the chronology of ancient constructions. Single grain OSL analysis is a very convenient tool to examine the bleaching state of the series of quartz grains extracted from a mortar sample. Indeed, during the making process, sand is extracted from a sedimentary source, transported, stored then mixed with lime and set into the walls being constructed. Experience shows that incomplete bleaching is frequent for these materials. The aim of this study is to model the distribution of single grain equivalent doses of mortars following the assumption that a population of grains corresponds to a unique distribution of heterogeneously bleached grains rather than to a mixture of well bleached quartz grains with poorly bleached ones. An exponential distribution of light exposure of grains is examined. By comparing experimental distributions of doses with simulated ones, we investigate the appropriateness of this distribution function and then we calculate the average residual dose integrated into the process of the ED determination and finally the OSL age. Limits and potentials of this approach are discussed using various case-studies of structures and buildings of known age (from the roman to the post-medieval period). Even in case of very poorly bleached samples we observed that the simulated ED distribution fits satisfactorily with the experimental one, which offers new encouraging perspectives in single grain dating of mortars. [less ▲]

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

in Skin (2002), 5

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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

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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

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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

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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 ▲]

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See detailExploring Environmental Inequalities in Belgium: a New Theoretical and Empirical Way to Deal with Environmental Conflicts in Urban Areas?
Lejeune, Zoé ULg

Scientific conference (2013, June)

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, environmental ... [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, environmental studies, and urban studies. Unlike US Environmental Justice movement, EI 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 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”. EI 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 examines alternative modes of public regulation in a “social and environmental justice in the city” perspective that could better integrate social and environmental issues. After a general presentation of the doctoral research, this paper explores (1) how grassroots movements or individuals can mobilise the law to denounce environmental conflicts and inequalities providing insights into an environmental inequalities perspective. It then studies (2) how current urban and environmental 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, unions and scientific public institutions. [less ▲]

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See detailExploring New Achievements in olefin metathesis catalysts. Part 1 - Highlights on N-heterocyclic carbene ruthenium complexes
Dragutan, Valerian; Dragutan, Ileana; Delaude, Lionel ULg et al

in Chimica Oggi = Chemistry Today (2009), 27(3), 9-12

Most important advances in ruthenium catalysts for olefin metathesis achieved during the last 4 years are briefly reviewed. The first part of the survey focuses on new catalytic precursors endowed with ... [more ▼]

Most important advances in ruthenium catalysts for olefin metathesis achieved during the last 4 years are briefly reviewed. The first part of the survey focuses on new catalytic precursors endowed with inventive N-heterocyclic carbene ligands which have proved highly proficient in a diversity of applications based on metathesis reactions. Part two extends the progress in other types of Ru initiators. [less ▲]

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See detailExploring new achievements in olefin metathesis catalysts. Part 2 - Compelling innovations in ruthenium complexes
Dragutan, Ileana; Dragutan, Valerian; Delaude, Lionel ULg et al

in Chimica Oggi = Chemistry Today (2009), 27(3), 13-16

This part of the survey introduces recent developments on de novo designed types of ruthenium complexes used as promoters in olefin metathesis reactions. Encompassing diversity-oriented initiators not ... [more ▼]

This part of the survey introduces recent developments on de novo designed types of ruthenium complexes used as promoters in olefin metathesis reactions. Encompassing diversity-oriented initiators not illustrated in Part 1, in this second part of the review emphasis is placed on the leading role played by distinct ligands in an exquisite control of metathesis reactions. [less ▲]

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See detailExploring new dimensions in cadaveric decomposition odour analysis
Stefanuto, Pierre-Hugues ULg; Perrault, Katelynn; Lloyd, Rebecca et al

in Analytical Methods (2015), 7

This study demonstrates the first documented use of comprehensive two-dimensional gas chromatography – high-resolution time-of-flight mass spectrometry (GC×GC-HRTOFMS) for volatile organic compound ... [more ▼]

This study demonstrates the first documented use of comprehensive two-dimensional gas chromatography – high-resolution time-of-flight mass spectrometry (GC×GC-HRTOFMS) for volatile organic compound analysis in the forensic sciences. High-resolution mass spectral data provided higher confidence in analyte identification. GC×GC-HRTOFMS will be valuable for future studies of decomposition odour and other complex volatile matrices. [less ▲]

Detailed reference viewed: 23 (7 ULg)