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See detailL’impact de l’exposition à des modèles d’entrepreneurs sur les antécédents de l’intention entrepreneuriale
Aouni, Zineb ULg; Pirnay, Fabrice ULg

in Actes du 6ème Congrès de l’Académie de L’Entrepreneuriat (2009)

Devant la multiplication des programmes de formation et de sensibilisation à l’entrepreneuriat, la question reste posée quant à l’efficacité des actions et des méthodes pédagogiques utilisées. La présente ... [more ▼]

Devant la multiplication des programmes de formation et de sensibilisation à l’entrepreneuriat, la question reste posée quant à l’efficacité des actions et des méthodes pédagogiques utilisées. La présente étude propose de à cette question en s’intéressant à l’impact d’un événement de sensibilisation de courte durée (une soirée) qui utilise prioritairement une seule méthode pédagogique consistant en l’exposition à des modèles d’entrepreneurs. L’évaluation d’impact se base sur des indicateurs liés aux changements d’attitudes à l’égard de l’entrepreneuriat et par conséquent à des changements au niveau de l’intention d’entreprendre. Se basant sur la théorie de l’apprentissage entrepreneurial qui suppose que les individus apprennent différemment d’une même expérience en fonction de leur niveau de connaissance initial (Minniti et Bygrave, 2001 ; Cope, 2005), cette étude distingue l’analyse d’impact selon deux groupes de participants en fonction de leur niveau de perceptions (attitudes et sentiment de capacité) et d’intention entrepreneuriale initial. Les résultats de cette étude permettent ainsi d’identifier les variables de perception pouvant influencer l’impact de l’exposition à des modèles d’entrepreneurs et de conclure par rapport à l’influence du stock de connaissances préalable sur le processus d’apprentissage entrepreneurial. La méthode préconisée propose une analyse comparative entre un échantillon de 288 participants à l’événement de sensibilisation et un groupe de contrôle composé de 46 répondants non participants. La présente étude repose ainsi sur le protocole pré-post test avec groupe de contrôle. En terme d’implications pratiques, cette étude permet aux responsables de formations à l’entrepreneuriat d’appliquer des méthodes pédagogiques appropriées au public auquel ils s’adressent (en terme de niveau de perceptions et d’intention entrepreneuriale) ou de mieux cibler le public approprié aux actions pédagogiques utilisées. [less ▲]

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See detail“Les imaginaires des migrants lesbiennes et gays latino-américains à propos de l’Europe: perspectives ethnographiques à partir du travail de terrain à Santiago (Chili)”
Berlage, Pauline ULg

in Yépez del Castillo, Isabel; Charlier, Sophie; Grenade, Sophie (Eds.) Les recherches en « genre et développement » pour des politiques de développement appropriées (2009)

Cette contribution a comme objectif de visibiliser une question peu souvent prise en compte en Europe jusqu’au jour d’aujourd’hui, il s’agit des migrations des lesbiennes et gays latino-américains en ... [more ▼]

Cette contribution a comme objectif de visibiliser une question peu souvent prise en compte en Europe jusqu’au jour d’aujourd’hui, il s’agit des migrations des lesbiennes et gays latino-américains en Europe. Ce travail se concentre plus particulièrement sur des migrants d’origine chilienne, péruvienne et colombienne et veut comprendre les imaginaires 86 à propos de l’Europe de ces migrants lesbiennes et gays. Cette recherche, toujours en cours, implique des travaux de terrain (entretiens et observations) réalisés en Belgique, en Espagne (Madrid et Salamanca) et au Chili (Santiago). La présentation de cette recherche se centrera sur le travail de terrain réalisé à Santiago. [less ▲]

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See detailStructure of PBP-A from Thermosynechococcus elongatus, a Penicillin-Binding Protein Closely Related to Class A β-Lactamases
Urbach, Carole; Evrard, Christine ULg; Pudzaitis, Vaidas et al

in Journal of Molecular Biology (2009), 386

Molecular evolution has always been a subject of discussions, and researchers are interested in understanding how proteins with similar scaffolds can catalyze different reactions. In the superfamily of ... [more ▼]

Molecular evolution has always been a subject of discussions, and researchers are interested in understanding how proteins with similar scaffolds can catalyze different reactions. In the superfamily of serine penicillin-recognizing enzymes, D-alanyl-D-alanine peptidases and β-lactamases are phylogenetically linked but feature large differences of reactivity towards their respective substrates. In particular, while β-lactamases hydrolyze penicillins very fast, leading to their inactivation, these molecules inhibit D-alanyl-D-alanine peptidases by forming stable covalent penicilloyl enzymes. In cyanobacteria, we have discovered a new family of penicillin-binding proteins (PBPs) presenting all the sequence features of class A β-lactamases but having a six-amino-acid deletion in the conserved Ω-loop and lacking the essential Glu166 known to be involved in the penicillin hydrolysis mechanism. With the aim of evolving a member of this family into a β-lactamase, PBP-A from Thermosynechococcus elongatus has been chosen because of its thermostability. Based on sequence alignments, introduction of a glutamate in position 158 of the shorter Ω-loop afforded an enzyme with a 50-fold increase in the rate of penicillin hydrolysis. The crystal structures of PBP-A in the free and penicilloylated forms at 1.9 Å resolution and of L158E mutant at 1.5 Å resolution were also solved, giving insights in the catalytic mechanism of the proteins. Since all the active-site elements of PBP-A-L158E, including an essential water molecule, are almost perfectly superimposed with those of a class A β-lactamase such as TEM-1, the question why our mutant is still 5 orders of magnitude less active as a penicillinase remains and our results emphasize how far we are from understanding the secrets of enzymes. Based on the few minor differences between the active sites of PBP-A and TEM-1,mutations were introduced in the L158E enzyme, but while activities on D-Ala-D-Ala mimicking substrates were severely impaired, further improvement in penicillinase activity was unsuccessful. [less ▲]

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See detailLes indicateurs d'inclusion sociale. Où est la Wallonie aujourd'hui?
Atta, Cécile; Maréchal, Claire; Perelman, Sergio ULg

in Thys, F.; Dejardin, M. (Eds.) Wallonie et Bruxelles: analyses et enjeux (2009)

We use the primary indicators of social inclusion proposed within the scope of the Open Method of Coordination (OMC) to situate Wallonia in the European Union (EU15) context. The results show that ... [more ▼]

We use the primary indicators of social inclusion proposed within the scope of the Open Method of Coordination (OMC) to situate Wallonia in the European Union (EU15) context. The results show that Wallonia stood in 2005 at the same level as Greece and was behind the EU15 level mainly regarding poverty and long-term unemployment rates. Groups at risk are single-parent families as well as unemployed and other inactive categories. Having at disposal these indicators for the years to come will be a must not only for the design but also for the evaluation of policies towards a better social cohesion. [less ▲]

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See detailLe commerce sensible des biens à double usage : analyses des législations européennes et des États-Unis
Rasson, Frédéric ULg

Master's dissertation (2009)

L’Union européenne a réglementé le commerce sensible des biens et technologies à double usage. Quelles différences existent entre le système harmonisé européen de contrôle sur les exportations d’articles ... [more ▼]

L’Union européenne a réglementé le commerce sensible des biens et technologies à double usage. Quelles différences existent entre le système harmonisé européen de contrôle sur les exportations d’articles à double usage et le contrôle organisé par les États-Unis ? [less ▲]

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See detailAccords d’échange d’informations et fédérations d’entreprises – Grands principes d’analyse en droit de la concurrence
Petit, Nicolas ULg

in LAMBRECHT, Philippe; GHEUR, Charles (Eds.) Les fédérations d'entreprises et les règles de concurrence (2009)

A l'heure de l'alourdissement des risques générés par le non-respect du droit de la concurrence, il est crucial que les fédérations sachent distinguer l'échange d'informations licite de l'échange illicite ... [more ▼]

A l'heure de l'alourdissement des risques générés par le non-respect du droit de la concurrence, il est crucial que les fédérations sachent distinguer l'échange d'informations licite de l'échange illicite et puissent remédier en temps utile à tout risque de violation du droit. Pour les y aider, la présente étude tente de définir une méthode permettant de trier les bons et mauvais accords d'échange d'informations. [less ▲]

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See detailFrom hard to soft enforcement of EC Competition Law
Petit, Nicolas ULg; Rato, Miguel

Book published by Bruylant (2009)

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See detailLa fin de la récréation pour l'opérateur historique? Annotation de la décision du Conseil de la concurrence dans l'affaire Belgacom/Scarlet, 7 novembre 2008
Petit, Nicolas ULg; Daems, Ief

in revue de la concurrence belge (2009), (3),

Le Conseil belge de la concurrence a décidé de subordonner l'autorisation de la concentration entre Belgacom et Scarlet à la mise en oeuvre de diverses mesures correctives structurelles et ... [more ▼]

Le Conseil belge de la concurrence a décidé de subordonner l'autorisation de la concentration entre Belgacom et Scarlet à la mise en oeuvre de diverses mesures correctives structurelles et comportementales. [less ▲]

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See detailAsthme aigu grave: une affection qui demeure redoutable.
D'Orio, Virginie ULg; Ghuysen, Alexandre ULg; Lambermont, Bernard ULg

in Revue Médicale de Liège (2009), 64(7-8), 377-81

Severe exacerbations of asthma can be life-threatening if not aggressively treated. Despite the publication of therapeutic guidelines developed by experts in this field and people education programs ... [more ▼]

Severe exacerbations of asthma can be life-threatening if not aggressively treated. Despite the publication of therapeutic guidelines developed by experts in this field and people education programs, early recognition and characterization of patients at risk for fatal asthma remain scarce. We report the case of a young lady suffering from acute exacerbation of asthma responsible for intensive care admission with long term mechanical ventilation due to the lack in initial appropriate care. [less ▲]

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See detailInvasions biologiques: un peu de vocabulaire
Jacquemart, Anne-Laure; Vervoort, Arnaud; Lhoir, P. et al

in Silva Belgica (2009)

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See detailAtomic structure calculations and Beam-foil observations of La IV
Biémont, Emile ULg; Clar, M.; Enzonga Yoca, S. et al

in Canadian Journal of Physics (2009), 87

Relativistic Hartree–Fock and multiconfigurational Dirac–Fock calculations of atomic structure and transition rates have been carried out in trebly ionized lanthanum (La3+, Z = 57). The calculations have ... [more ▼]

Relativistic Hartree–Fock and multiconfigurational Dirac–Fock calculations of atomic structure and transition rates have been carried out in trebly ionized lanthanum (La3+, Z = 57). The calculations have to cope with configuration interaction effects but also with the very complex situation of the collapse of the 4f wave function. The calculations are compared to experimental data obtained with beam-foil spectroscopy in the extreme ultraviolet, at ion energies that favour <br />the production of the spectrum La IV. Besides lines known from sliding spark discharges, many more lines are observed that have not yet been identified. Time-resolved measurements yield three level lifetimes in La IV that agree roughly with the results of our own calculations. [less ▲]

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See detailCaractérisation physique, chimique et microbiologique de trois sols acides tropicaux du Rwanda sous jachères naturelles et contraintes à leur productivité
Culot, Marc ULg; Mbonigaba Muhinda, Jean-Jacques; Nzeyimana, Innocent et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2009), 13(4), 545-558

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See detailGerminal centre innervation of bovine and human tonsils related to prion diseases.
Defaweux, Valérie ULg; Dorban, Gauthier; Antoine, Nadine ULg et al

in Brain, Behavior & Immunity (2009), 23(1), 10

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See detailStructural investigation of solidification and heat treatments influence on High Alloyed Cast Irons Grades with Nb-V-Ti Additions
Lecomte-Beckers, Jacqueline ULg; Tchuindjang, Jérôme Tchoufack ULg

in Defects and diffusion forum (2009), 289-292

Two High Alloyed Cast Irons (HACI) were studied, both belonging to the Fe-C-Cr-Si-X system where X was represented by Mo, Nb, Ti or V. One alloy was obtained after adding Nb, V and Ti to the chemical ... [more ▼]

Two High Alloyed Cast Irons (HACI) were studied, both belonging to the Fe-C-Cr-Si-X system where X was represented by Mo, Nb, Ti or V. One alloy was obtained after adding Nb, V and Ti to the chemical composition of the other alloy. Raw materials originated from spun cast rolls for hot strip mill were submitted to different heat treatments routes such as double tempering or quenching, in order to study the influence of alloying elements on the microstructure. Both HACI grades contained a mixture of martensite and retained austenite matrix in the as-cast conditions and after quenching. Differential Thermal Analysis (DTA) was carried out on the heat treated samples in order to determine the phase transformations occurring during re-melting and subsequent solidification sequence. Retained austenite found in the as-quenched HACI without Nb, V and Ti additions exhibited an enhanced stability as confirmed by DTA tests. Various type of martensite were found at the end of heat treatments routes, each having a possible influence on the material behavior while performing re-heating prior to re-austenitisation. Bulky Nb-rich MC carbides precipitating at the beginning of the solidification process strongly influence the nature and the rate of the subsequent phase transformations, particularly for HACI grade with Nb, V and Ti additions. Such NbC carbides were also found to segregate during spin casting process. Quantitative metallography was done to determine graphite, MC carbides, cementite and matrix volume fraction in HACI studied grades. [less ▲]

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See detailChapitre IV: La politique fiscale et budgétaire
Jurion, Bernard ULg

in Beaufays, Jean; Matagne, Geoffroy (Eds.) La Belgique en mutation. Systèmes politiques et politiques publiques (1968-2008) (2009)

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See detailFondamenti di un approccio Europeo all'impresa sociale
Defourny, Jacques ULg; Mertens de Wilmars, Sybille ULg

in Laville, Jean-Louis; La Rosa, Michele (Eds.) Impresa sociale e capitalismo contemporaneo (2009)

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See detailConcepts and Realities of Social Enterprise: A European Perspective
Defourny, Jacques ULg

in Collegium (2009), (Spring), 73-98

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See detailLe fédéralisme et ses deux sens – négatifs – en Belgique francophone
Reuchamps, Min ULg

in Revue de la Faculté de Droit de l'Université de Liège (2009), 54(4), 527-540

For the last fifteen years, Belgium has experienced officially federalism. Federalism, federation, federal state and federal entities, federal government or system federal are all concepts that are often ... [more ▼]

For the last fifteen years, Belgium has experienced officially federalism. Federalism, federation, federal state and federal entities, federal government or system federal are all concepts that are often used but whose definition is not always clear. The aim of the article is twofold: one the one hand, this article offers a definition of all these terms and, on the other hand, it explores the understanding of federalism by francophone Belgian citizens. [less ▲]

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See detailEquivalence of item difficulties across national versions of the PIRLS and PISA reading assessements
Grisay, Aletta; Gonzalez, E.; Monseur, Christian ULg

in IERI (2009), 2

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See detailSociabilités et réseaux littéraires au sein du sous-champ belge francophone de l’entre-deux-guerres
Dozo, Björn-Olav ULg

in Histoire & Mesure (2009), XXIV(1), 43-72

Detailed reference viewed: 108 (14 ULg)