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See detailLa ville rend libre : un mythe ?
Frankignoulle, Pierre ULg

Article for general public (2007)

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See detailLa participation du public en droit de l'urbanisme et de l'environnement
Delnoy, Michel ULg

Book published by Larcier (2007)

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See detailReciprocal endoderm-mesoderm interactions mediated by fgf24 and fgf10 govern pancreas development
Manfroid, Isabelle ULg; Delporte, F.; Baudhuin, A. et al

in Development (2007), 134(22), 4011-21

In amniotes, the pancreatic mesenchyme plays a crucial role in pancreatic epithelium growth, notably through the secretion of fibroblast growth factors. However, the factors involved in the formation of ... [more ▼]

In amniotes, the pancreatic mesenchyme plays a crucial role in pancreatic epithelium growth, notably through the secretion of fibroblast growth factors. However, the factors involved in the formation of the pancreatic mesenchyme are still largely unknown. In this study, we characterize, in zebrafish embryos, the pancreatic lateral plate mesoderm, which is located adjacent to the ventral pancreatic bud and is essential for its specification and growth. We firstly show that the endoderm, by expressing the fgf24 gene at early stages, triggers the patterning of the pancreatic lateral plate mesoderm. Based on the expression of isl1, fgf10 and meis genes, this tissue is analogous to the murine pancreatic mesenchyme. Secondly, Fgf10 acts redundantly with Fgf24 in the pancreatic lateral plate mesoderm and they are both required to specify the ventral pancreas. Our results unveil sequential signaling between the endoderm and mesoderm that is critical for the specification and growth of the ventral pancreas, and explain why the zebrafish ventral pancreatic bud generates the whole exocrine tissue. [less ▲]

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See detailContribution à l’étude de faisabilité de séchoirs solaires pour les produits agricoles
Bennamoun, Lyes ULg; Belhamri, Azeddine

in Revue des Energies Renouvelables (2007)

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See detailFamilial and Other Conversations: Special Issue on Caryl Phillips
Ledent, Bénédicte ULg

in Moving Worlds : A Journal of Transcultural Writings (2007), 7(1), 123

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See detailIntraguild interactions of aphidophagous predators in fields: effect of Coccinella septempunctata and Episyrphus balteatus occurrence on aphid infested plants.
Alhmedi, Ammar; Francis, Frédéric ULg; Bodson, Bernard ULg et al

in Communications in Agricultural and Applied Biological Sciences (2007), 72(3), 381-90

Intraguild relations between beneficial insects have become a major research topic in biological pest control. In order to understand the intraguild competitions between aphidophagous populations in ... [more ▼]

Intraguild relations between beneficial insects have become a major research topic in biological pest control. In order to understand the intraguild competitions between aphidophagous populations in natural conditions, a field experiment was carried out in the experimental farm of the Gembloux Agricultural University. As biological control of pests involve a community of diverse natural enemies, this experiment firstly aimed to assess the aphidophagous predator diversity and abundance in green pea (Pisum sativum) field and secondly to investigate the impact of the large natural occurrence of C. septempunctata on the aphidophagous beneficial dispersion and efficiency as aphid biological control agents in pea field. Visual observations were weekly performed throughout the 2006 growing season. The pea aphids were attacked by several predatory groups, mainly ladybird beetles and hoverflies. Higher densities of ladybirds and hoverflies were recorded in the beginning of July, associated with an aphid occurrence peak. Using net cage system in the field, the particular intraguild relations between added C. septempunctata or E. balteatus and the natural beneficial arrivals and dispersion were observed. The E. batteatus (eggs and larvae) presence inhibited other aphidophagous predators presence on the aphid infested plants. Lower abundance of E. balteatus was observed on aphid infested plants already colonised by C. septempunctata. To explore more accurately the oviposition and predation behaviours of ladybirds and hoverflies and to determine the chemical factors that could influence these behaviours, current researches are performed in laboratory and will be discussed to promote efficient biological control of aphids by natural enemies. [less ▲]

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See detailFormer à l'information ... et ailleurs ?
Pochet, Bernard ULg

in Cadet, Frédéric (Ed.) Actes du séminaire national : De l’information à la connaissance, Poitiers, 28-30 août 2006 (2007)

This paper intend to propose to the participants of the Summer School to see examples and models from abroad putting into perspective their own practices to strengthen or, hopefully, provoke questions ... [more ▼]

This paper intend to propose to the participants of the Summer School to see examples and models from abroad putting into perspective their own practices to strengthen or, hopefully, provoke questions. Will be discussed during the briefing, the Belgian situation and EduDOC group, patterns of training in French-speaking Belgium, a draft assessment of skills, the "information commons", a new librarie's service and the problem based learning ", showing the need for an institutional policy. [less ▲]

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See detailLa localisation des grandes zones logistiques
Merenne-Schoumaker, Bernadette ULg

in Bulletin de la Société Géographique de Liège (2007), (49), 31-40

The growth of logistics has recently fathered many new zones of specialized activities, called most of the times parks or logistic platforms. The objective of the article consists in understanding their ... [more ▼]

The growth of logistics has recently fathered many new zones of specialized activities, called most of the times parks or logistic platforms. The objective of the article consists in understanding their development and in identifying the logics of location. For this purpose, we have first tried to identify better the domain of activities: types of logistics, carried out operations, concerned sectors, concerned operators... Afterwards, on the basis of data mostly coming from professional circles, we have attempted to identify the factors and constraints of the new zones location, and to specify the mechanisms of the new real estate business linked to those zones, our goal consisting in bringing out the main principles of location on the scale of the countries, regions and sites choices. In the light of this first analysis, the logic seems pretty specific and takes place undoubtedly between the logic of industries and services. [less ▲]

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See detailRetirement and cognitive reserve: a stochastic frontier approach applied to survey data
Adam, Stéphane ULg; Bonsang, Eric; Germain, Sophie ULg et al

Report (2007)

This paper proposes the use of the stochastic frontier approach to analyse the relationship between cognitive performance, retirement and non-professional activities of the 50+ individuals using data from ... [more ▼]

This paper proposes the use of the stochastic frontier approach to analyse the relationship between cognitive performance, retirement and non-professional activities of the 50+ individuals using data from three surveys conducted in Europe (the Survey on Health, Ageing and Retirement in Europe and the English Longitudinal Survey on Ageing) and United States (the Health and Retirement Study). Next to the strong relationship between cognitive performance, age and education, this study highlights the negative effect of retirement and the positive impact of non-professional activities and social contacts. [less ▲]

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See detailS’investir en didactique
Merenne-Schoumaker, Bernadette ULg

in Denooz, Joseph; Dortu, Véronique; Steinmetz, Rudy (Eds.) Hommage à Pierre Somville (2007)

Depuis une vingtaine d’années, la didactique et plus spécifiquement les didactiques disciplinaires se développent beaucoup et participent de plus en plus à la formation des futurs enseignants du ... [more ▼]

Depuis une vingtaine d’années, la didactique et plus spécifiquement les didactiques disciplinaires se développent beaucoup et participent de plus en plus à la formation des futurs enseignants du secondaire et aux recherches en sciences de l’éducation. Face à ce nouveau contexte dans lequel s’inscrit pleinement l’Université de Liège, il est apparu intéressant – dans le cadre d’un ouvrage d’hommage à un Professeur qui s’est lui-même beaucoup impliqué dans le développement de la didactique de trois disciplines (la philosophie, l’histoire de l’art, le latin et le grec) – de nous interroger sur ce nouveau champ scientifique d’investigation qui est peu connu hors des responsables de l’AESS (Agrégation de l’enseignement du degré supérieur). Qu’est-ce que la didactique ? Quels sont ses fondements et ses concepts centraux ? Quel rôle joue-t-elle dans la formation des enseignants ? Quels sont ses défis et perspectives ? [less ▲]

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See detailA distributed stream temperature model using high resolution temperature observations
Westhoff, Martijn ULg; Savenije, H. H. G.; Luxemburg, W. M. J. et al

in Hydrology and Earth System Sciences (2007), 11(4), 1469-1480

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See detailA Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation
Gallego-Garrido, Jon; Dimitriadis, Grigorios ULg; Carrington, Ian B. et al

in International Journal of Rotating Machinery (2007), 2007

Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies ... [more ▼]

Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies undergoing two simultaneous synchronous resonances was developed. The approaches were demonstrated using data from a mathematical simulation of tip timing data. In Part II the methods are validated on an experimental test rig. First, the construction and characteristics of the rig will be discussed. Then, the performance of the analysis techniques when applied to data from the rig will be compared and analysed. It is shown that accurate frequency estimates are obtained by all the methods for both single and double resonances. Furthermore, the recovered frequencies are used to calculate the amplitudes of the blade tip responses. The presence of mistuning in the bladed assembly does not affect the performance of the new techniques. [less ▲]

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See detailTeatro, violenza e resistenza in Congo Brazzaville. Il percorso di Dieudonné Niangouna
Jedlowski, Alessandro ULg

Book published by L'Harmattan Italia (2007)

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See detailRoles of the STAT5 transcription factor in neutrophil homeostasy and inflammation
Fievez, Laurence ULg

in Annales de Médecine Vétérinaire (2007), 151(Spécial), 73-76

Detailed reference viewed: 6 (3 ULg)