Publications ORBi OA
Bookmark and Share    
Full Text
Peer Reviewed
See detailA Principal-Agent Theory Approach to Public Expenditure Management Systems in Developing Countries
Leruth, Luc ULg; Paul, Elisabeth ULg

in IMF Working Paper (2006), 06/204

A well-functioning public expenditure management (PEM) system is considered a critical pillar of government efficiency, on par with a low-distortion tax system and efficient tax administration. The paper ... [more ▼]

A well-functioning public expenditure management (PEM) system is considered a critical pillar of government efficiency, on par with a low-distortion tax system and efficient tax administration. The paper discusses PEM systems in developing countries using an analytical framework based on principal-agent theory. This simple model can be applied to various PEM systems, and allows for comparisons between institutional settings. To illustrate this, we analyze the benefits derived from the use by the Ministry of Finance (MoF) of two control instruments; ex post audits and ex ante controls, and assess their value in terms of their ability to deter cheating. We derive a set of possible “control regimes” which can be used by the MoF. Although we illustrate the use of the model using developing countries, it is also relevant to developed economies. [less ▲]

Detailed reference viewed: 55 (4 ULg)
Full Text
See detailL'entretien d'aide en situation de souffrance relationnelle au travail
Faulx, Daniel ULg

Report (2006)

Ce chapitre aborde les différentes manières de mener des entretiens avec des personnes vivant une situation de harcèlement ou de conflit.

Detailed reference viewed: 90 (1 ULg)
Full Text
See detailFeasability of forest conversion: ecological, social and economic aspects (FEFOCON)
Verheyen, Kris; Lust, Noel; Carnol, Monique ULg et al

Report (2006)

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailInter- and intra-guild interactions related to aphids in nettle (Urtica dioica L.) strips closed to field crops.
Alhmedi, A.; Haubruge, Eric ULg; Bodson, Bernard ULg et al

in Communications in Agricultural and Applied Biological Sciences (2006), 71(2 Pt B), 413-23

A field experiment designed to assess the biodiversity related to nettle strips closed to crops, and more particularly the aphid and related beneficial populations, was established in experimental farm ... [more ▼]

A field experiment designed to assess the biodiversity related to nettle strips closed to crops, and more particularly the aphid and related beneficial populations, was established in experimental farm located in Gembloux (Belgium). Margin strips of nettle (Urtica dioica) closed to wheat (Triticum aestivum), green pea (Pisum sativum) and rape (Brassicae napus) fields were investigated. The diversity, abundance of aphids and related predators were analysed according to the plant crop species and the differential pesticide application (treated plot and control). Insects were visually observed every week during all the cultivation season. Two main families of aphidophagous predators were found in all field crops and nettle, the Coccinellidae and Syrphidae. The diversity of the aphidophagous predators was shown to be higher on nettle than in field crops, particularly the Chrysopidae, the Anthocoridae and the Miridae. However, a striking difference of ladybird abundance was observed according to the aphid host plant. In one side, Coccinella septempunctata was much more abundant on Acyrthosiphon pisum infested green pea than on the other host plant species. At the opposite, higher occurrence of Harmonia axyridis was observed on the aphid infested nettle plants than on the crop plants. In particular, none of H. axyridis was found in wheat crop. Also, more than only a significant positive correlation between predator and aphid abundance, specialised relations between particular aphid species and some so-called generalist predators was determined in the fields. Finally, intraguild interactions between the aphidophagous predators was assessed and shown that only a significant negative correlation between Episyrphus balteatus and H. axyridis related to the nettle aphid, Micrlophium carnosum, was observed. The relative distribution of the ladybirds, namely C. septempunctata and H. axyridis according to the host plant, nettle strips and crop plots was discussed in relation to integrated pest management approach. [less ▲]

Detailed reference viewed: 71 (9 ULg)
Full Text
Peer Reviewed
See detailInżyneria powierzchni betonu. Część 1. Struktura geometryczna powierzchni.
Garbacz, Andrzej; Piotrowski, Tomasz; Courard, Luc ULg

in Materialy Budowlane (2006), 9

Detailed reference viewed: 35 (0 ULg)
Full Text
Peer Reviewed
See detailAction du maître de l'ouvrage contre le sous-traitant: le débat n'est pas clos. Note sous C.A., 28 juin 2006
Kohl, Benoît ULg

in Entreprise et le Droit (L') = Tijdschrift voor Aannemingsrecht (2006)

Detailed reference viewed: 58 (8 ULg)
Full Text
Peer Reviewed
See detailLa Paix de Fexhe, de sa rédaction à la fin de la principauté de Liège
Masson, Christophe ULg

in Bulletin de la Commission Royale des Anciennes Lois et Ordonnances de Belgique (2006), XLVII

The Peace of Fexhe has always been seen by the Liegeois as a constitutional treaty of paramount importance as it provided the principality of Liège with a representative assembly. Yet, this text, enacted ... [more ▼]

The Peace of Fexhe has always been seen by the Liegeois as a constitutional treaty of paramount importance as it provided the principality of Liège with a representative assembly. Yet, this text, enacted in 1316, remained in use until the end of the State of Liège. The present article focuses therefore on its history in order to determine the role it actually played in the political life of Liège at the end of the Middle Ages and during the Modern Times. What emerges is that, signed in a context of tension, the Peace of Fexhe really was a compromise signed between two parties exhausted by famine, not the victory of one over the other. Even though the treaty seems to record several claims of the opponents to the prince-bishop Adolphe de La Marck, it really is the latter who, in spite of what numerous historians believed, continued to direct the political game of Liège. Indeed, his arbitrators managed to counter the claims of their opponents through the insertion of clauses preventing any real upheaval within the principality. For Adolphe, this treaty is therefore a break in his quest for a total sovereignty. Following him, the prince-bishops of Liège strove in defence of their power, contravening if need be the text of 1316. The Liégeois appeared to us to have been perfectly aware of the limits of the Peace of Fexhe but they endeavoured to gloss over these in order to make the text an absolute reference in the domain of political claims and a revered rallying symbol. Then, it will be through the constant reminder of this treaty that various political claims arose, making it de facto the source of the “Liegian constitution”. Afterwards, the Liegeois had recourse to the Peace of Fexhe in order to legitimate their political options. However, it was absolutely not a general rule since several politicians close to the people, such as Thierry de Perwez or Raes de Heers did not make use of the text. On the contrary, it was within more “cultivated” circles, such as the municipal magistrates and the burgomasters, that the text was the less rarely used, whether it be at the time of the promulgation of the decisions of the Council of Trente or at the eve of the Liegian Revolution. Moreover, it is by its almost uninterrupted presence in the Liegian politics that the Peace of Fexhe asks the question of the administration of law in the principality. In spite of a common objective, punishing the abuse of power of the episcopal officers, it was in opposition over the question of the procedure with the Peaces of the XXII . Yet the Court of the XXII considered itself to be in charge of the defence of the Peace of Fexhe. Similarly, the capitulations of the prince-bishops swore to the respect of the text and court without fear of a contradiction that no one seemed to have wanted to highlight. This shows how deep it was rooted in the Liegian legal culture, even though the real action of the Peace of Fexhe through the centuries left few traces. In conclusion, the Peace of Fexhe owes its prestige to its recuperation by different political forces that used it as a battle flag, adapting it, contradicting it sometimes, to their claims. Thus, event though its exact stipulations were forgotten as soon as the end of the 16th century and it was then progressively completed, it survived in the imagination and built up its prestige on the additional meaning its utilisations provided it with, for, in Liège, who defends Fexhe defends the good right. [less ▲]

Detailed reference viewed: 200 (18 ULg)
Full Text
Peer Reviewed
See detailThe astrobiology primer: An outline of general knowledge - Version 1, 2006
Mix, Lucas J; Armstrong, John C; Mandell, Avi M et al

in Astrobiology (2006), 6(5), 735-813

Detailed reference viewed: 25 (2 ULg)
Full Text
Peer Reviewed
See detailMinerals discovered in paleolithic black pigments by transmission electron microscopy and micro-X-ray absorption near-edge structure
Chalmin, Emilie; Vignaud; Salomon, Hélène ULg et al

in Applied Physics A : Materials Science & Processing (2006)

Detailed reference viewed: 27 (0 ULg)
Full Text
Peer Reviewed
See detailEvaluation de l’efficacité d’un module d’enseignement à distance centré sur l’analyse de tâche et l’émission de feed-back
Lenzen, Benoît; Gustin, Frédéric; Cloes, Marc ULg

in Carlier, Ghislain; Bouthier, Daniel; Bui-Xuân, G. (Eds.) Intervenir en éducation physique et en sport. Recherches actuelles (2006)

L’importance du feedback dans la relation pédagogique d’enseignement a été mise en évidence dans de nombreuses recherches de type « processus-produit » et les mécanismes relatifs à son émission ont par ... [more ▼]

L’importance du feedback dans la relation pédagogique d’enseignement a été mise en évidence dans de nombreuses recherches de type « processus-produit » et les mécanismes relatifs à son émission ont par ailleurs été bien définis. La question qui se pose est la suivante : Comment intervenir dans la formation initiale des enseignants en éducation physique et des entraîneurs afin de développer chez eux l’aptitude à corriger les performances motrices des apprenants ? [less ▲]

Detailed reference viewed: 81 (4 ULg)
Full Text
Peer Reviewed
See detailAnalyse qualitative de la problématique de l’abandon de la natation de compétition en Communauté française de Belgique
Lefefvre, Fabien; Habsch, Ingrid; Cloes, Marc ULg

in Carlier, Ghislain; Bouthier, Daniel; Bui-Xuän, G. (Eds.) Intervenir en éducation physique et en sport. Recherches actuelles (2006)

Dans cette étude, nous aborderons le phénomène de l’abandon de la pratique compétitive de la natation en privilégiant une approche qualitative, contrairement à ce qui a déjà été proposé dans la ... [more ▼]

Dans cette étude, nous aborderons le phénomène de l’abandon de la pratique compétitive de la natation en privilégiant une approche qualitative, contrairement à ce qui a déjà été proposé dans la littérature. En récoltant des données chez les différents acteurs de clubs, nous ambitionnons de mieux cerner le phénomène et, surtout, de croiser les données issues des pratiquants avec celles des autres personnages clés de la réussite sportive. Mettre en exergue les solutions imaginées par les dirigeants sportifs pour lutter contre ce phénomène et offrir une base de réflexion et d’action aux praticiens constituent les finalités pratiques de cette étude. [less ▲]

Detailed reference viewed: 114 (9 ULg)
Full Text
See detailMAXIMIZATION OF PULL-IN VOLTAGE OF MICRO-ELECTROMECHANICAL STRUCTURES USING TOPOLOGY OPTIMIZATION
Lemaire, Etienne ULg; Rochus, Véronique ULg; Fleury, Claude ULg et al

Conference (2006)

The design problem consists in maximizing the pull-in voltage using topology optimization method, which is formulated as an optimal material distribution. In addition to the classical volume constraint ... [more ▼]

The design problem consists in maximizing the pull-in voltage using topology optimization method, which is formulated as an optimal material distribution. In addition to the classical volume constraint, different structural constraints could be taken into consideration. Sensitivity analysis is one of the key issues of the optimization process and is performed with the formulation of eigenvalue topology optimization problems. Here the paper investigates topology optimization of strongly coupled electromechanical systems. To avoid important modifications of the electric field by the optimization process, this first study considers a non design electrode and use topology optimization to design an optimal suspension structure. Solution procedure of the optimization problem is based on CONLIN optimizer using a sequential convex programming. This method that has proved its efficiency in many structural problems (sizing, shape) is here tailored to strongly coupled multiphysics design problems under consideration. The choice of appropriate explicit convex approximations schemes for multiphysic problems is investigated. The proposed method is illustrated and validated on microbeam optimization applications. [less ▲]

Detailed reference viewed: 24 (2 ULg)
Full Text
Peer Reviewed
See detailCarbon balance of two Belgian crops
Moureaux, Christine ULg; Debacq, Alain ULg; Vilret, Amélie et al

in Geophysical Research Abstracts (2006), 8(1),

Detailed reference viewed: 30 (3 ULg)
Full Text
See detailInfluence de la protection fongicide, de la variete et de la date de semis sur les caracteristiques et les proprietes de l'amidon de ble.
Bodson, Bernard ULg; Massaux, Christine; Lenartz, Jonathan et al

in 8eme Conference Internationale sur les Maladies des Plantes, Tours,France, 5 et 6 Decembre, 2006 (2006)

Starch characteristics and properties of wheat grains are slightly influenced by fungicide protection application on the crop but are mainly linked to the variety and date of sowing.

Detailed reference viewed: 51 (4 ULg)
Full Text
Peer Reviewed
See detailImpact d’un sport-études sur la vie d’un établissement scolaire
Frédéric, Olivier; Louis, Lionel; Cloes, Marc ULg

in Carlier, Ghislain; Bouthier, Daniel; Bui-Xuân, G. (Eds.) Intervenir en éducation physique et en sport. Recherches actuelles (2006)

Nous nous proposons d’étudier le cas d’un établissement secondaire dans lequel a été créée une section sport-études et d’analyser l’impact social de cette filière d’études dans l’école en question en ... [more ▼]

Nous nous proposons d’étudier le cas d’un établissement secondaire dans lequel a été créée une section sport-études et d’analyser l’impact social de cette filière d’études dans l’école en question en recueillant, auprès des différents acteurs de la structure, des informations concernant les objectifs associés au sport-études, les motifs de participation, les relations entre les différents acteurs du site, la perception du sport-études et la perception du niveau des élèves. Pour d’évidentes raisons de place, nous avons choisi de n’aborder dans cet article que les trois premiers aspects. [less ▲]

Detailed reference viewed: 131 (10 ULg)
Full Text
See detailL'enseignement de la méthodologie documentaire
Pochet, Bernard ULg

in Allain, Annie (Ed.) Miscellanea, Collection UL3, travaux et recherches (2006)

This paper presents the information literacy courses at the Gembloux agricultural University. It compares the approach methodological and technical approach. It also describes the target audience.

Detailed reference viewed: 121 (11 ULg)