References of "Halleux, Isabelle"
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See detailEditorial
Halleux, Isabelle ULg

in Acta Universitaria (2012), 22(6), 3

This editorial presents the content of the 2012 6th issue

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See detailGestion et promotion de la recherche à l'Université de Ouagadougou
Bonzi-Coulibaly, Yvonne; Halleux, Isabelle ULg

Article for general public (2011)

L’Université de Ouagadougou a pour ambition de se positionner comme un pôle de recherche cohérent, à même de répondre aux besoins sociétaux du Burkina Faso. Dans cette optique, elle s’appuie sur les ... [more ▼]

L’Université de Ouagadougou a pour ambition de se positionner comme un pôle de recherche cohérent, à même de répondre aux besoins sociétaux du Burkina Faso. Dans cette optique, elle s’appuie sur les efforts qu’elle déploie pour le développement des capacités de recherche de qualité. De l’inventaire à la promotion et à la valorisation, en passant par la formation des jeunes chercheurs et l’échange de bonnes pratiques, le projet prend corps. [less ▲]

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See detail"Une sensibilisation accrue des chercheurs à l'esprit d'entreprise est nécessaire"
Halleux, Isabelle ULg

Article for general public (2009)

Isabelle Halleux est interviewée sur les apports, les difficultés et les outils nécessaires aux universités pour mettre en oeuvre de la charte européenne du chercheur et du code de conduite de recrutement ... [more ▼]

Isabelle Halleux est interviewée sur les apports, les difficultés et les outils nécessaires aux universités pour mettre en oeuvre de la charte européenne du chercheur et du code de conduite de recrutement. La plupart des principes de la Charte, dont les maîtres mots sont Equité, Transparence et Qualité sont déjà d'application dans les universités de Wallonie. Au-delà du sous-financement de la recherche et de la précarité des contrats des chercheurs généralement évoqués, Isabelle Halleux parle de l'intérêt de la mutualisation des services, de la reconnaissance des divers éléments de carrière des chercheurs, et de la nécessaire ouverture au monde et à la différence par l'excellence. Elle insiste sur l'importance du positionnement stratégique des autorités académiques et politiques, sur l'esprit d'entreprise des chercheurs et sur le partenariat international comme facteurs de réussite de la mise en oeuvre de ces lignes directrices européennes. [less ▲]

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See detailProposition pour la mise en oeuvre des priorités relatives à la coopération interuniversitaire approuvées lors du XIXe Sommet des Exécutifs de la Grande Région
Halleux, Isabelle ULg; Petit, Patricia ULg

Report (2007)

The aim of this study is to propose specific actions for a long-term efficient and self-supporting cooperation between universities of the Great Region (Sarre, Lorraine, Luxembourg, Rhenanie-Palatinat and ... [more ▼]

The aim of this study is to propose specific actions for a long-term efficient and self-supporting cooperation between universities of the Great Region (Sarre, Lorraine, Luxembourg, Rhenanie-Palatinat and Wallonia) [less ▲]

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See detailOser le doctorat
Halleux, Isabelle ULg

Article for general public (2006)

According to the Bologna Process, the doctorate is now the (only) 3rd cycle of the university graduation in Belgium. The doctorate is made of 3 components : the doctoral education, the research works and ... [more ▼]

According to the Bologna Process, the doctorate is now the (only) 3rd cycle of the university graduation in Belgium. The doctorate is made of 3 components : the doctoral education, the research works and the public presentation of the thesis showing the graduate's capacity for creativity, research and dissemination. So that the graduation relies on the academic education as well as on the experience of research and on soft skills capacities. So : dare to do a PhD ? [less ▲]

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See detailContribution of the quantitative interpretation of gamma-ray logs to the study of limestone exploitation, a case-study at Maizeret, Belgium
Halleux, Isabelle ULg

in Geoexploration (1999), 24(6), 461-470

Economic considerations constrain quarrymen in Wallonia to consider more profit-earning exploitation of limestone deposits and (or) to diversify their products. Gamma-ray logs contain information about ... [more ▼]

Economic considerations constrain quarrymen in Wallonia to consider more profit-earning exploitation of limestone deposits and (or) to diversify their products. Gamma-ray logs contain information about the geology, structure and quality of deposits. Quantitative interpretation of the logs is necessary in order to provide a reasonably good image of reality. The method proposed here consists in removing the effects of different parameters influencing the measurements (analog ratemeter, statistical noise, etc.) and in deconvolving the data in the frequency domain by the analytical impulse response function of the system. An example demonstrates that mathematical processing increases the lithologic and stratigraphic definition of the logs (bed boundaries, bed thicknesses) and offers a satisfactory characterization of the rocks along boreholes. Some of the quarrymen's questions can be answered from this analysis. [less ▲]

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See detailReport of the OECD Workshop on Statitsical Analysis of Aquatic Toxicity Data
Halleux, Isabelle ULg; Bornatowicz, Norbert; Grillitsch, Britta et al

Report (1998)

Following a decision taken by the National Co-ordinators of the OECD Test Guideline Programme and the OECD Risk Assessment Advisory Body (RAAB) at their joint session in December 1995, an OECD Workshop on ... [more ▼]

Following a decision taken by the National Co-ordinators of the OECD Test Guideline Programme and the OECD Risk Assessment Advisory Body (RAAB) at their joint session in December 1995, an OECD Workshop on Statistical Analysis of Aquatic Ecotoxicity Data was held in Braunschweig, Germany on 15-17 October 1996. The workshop was hosted by the Biologische Bundesanstalt für Land-und Forstwirtschaft (BBA) in Braunschweig and was chaired by Dr Arno Lange of the German Umweltbundesamt (UBA). The objectives of the workshop were: • to review the options available for the analysis of data from ecotoxicity tests; • to compare their advantages and disadvantages; • to recommend (a) the most appropriate approach for deriving a summary parameter(s) which has (have) scientific validity, and (b) further work to be undertaken by the OECD and/or others, as appropriate. In plenary and working group sessions participants discussed statistical data analysis appropriate for single-species chronic/subchronic studies using a number of test concentrations, i.e. dose-response tests. Aquatic tests served as a basis for these discussions, however the issues addressed may be similar for toxicity tests in general. Background documents had been prepared on the following main existing data analysis approaches for such tests: analysis of variance/hypothesis testing (“ANOVA/NOEC approach”); regression analysis (based on empirical models); and mechanistic modelling (theory-based). It was concluded that the NOEC, as the main summary parameter of aquatic ecotoxicity tests, is inappropriate for a number of reasons (see detailed discussion in the report) and should therefore be phased out. It was recommended that the OECD should move towards a regression-based estimation procedure. The time course of effects should be incorporated in the analytical procedures, and the OECD should initiate a study of the available time-dependent regression models (both mechanistic and empirical) in order to select those which best meet its needs. The study should also address the issue of appropriate values of x for ECx and the optimal experimental designs. A steering group should be set up to direct the mathematical, statistical and biological work required to take the workshop recommendations forward. This group should include representatives from the appropriate scientific and regulatory communities. [less ▲]

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See detailDevelopment of a Database System for the Management of Borehole Data : Experience and lessons
Halleux, Isabelle ULg

in Mathematical Geology (1994), 26(7), 833-841

CBS-LOG is a multilingual database system for the management of coal exploratory borehole data. It is a dBase application running on PC's with minimum configurations. Developing a suitably accurate ... [more ▼]

CBS-LOG is a multilingual database system for the management of coal exploratory borehole data. It is a dBase application running on PC's with minimum configurations. Developing a suitably accurate database requires some stratégic choices and lots of discussions and compromises between experts. The experience shows that it is absolutely necessary to follow strictly the development flow-sheet and that the difficulties rely mainly on communication and human aspects of mathematical geology. A step by step approach is reviewed in terms of experience and lessons. [less ▲]

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See detailL'optimisation des schémas d'échantillonnage : noveaux concepts, nouvelles méthodes
Halleux, Isabelle ULg; Nix, Philippe

in Techniques et stratégies de l'échantillonnage de l'environnement (1991)

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See detailTraitement de diagraphies en sondages miniers
Halleux, Isabelle ULg

Doctoral thesis (1987)

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