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Peer Reviewed
See detailInduction of Thymocyte Proliferation by Supernatants from a Mouse Thymic Epithelial Cell Line
Villa-Verde, Dea; Defresne, Marie-Paule ULg; Greimers, Roland ULg et al

in Cellular Immunology (1991), 136(1), 113-21

The thymic stroma plays a critical role in the generation of T lymphocytes by direct cell-to-cell contacts as well as by secreting growth factors or hormones. The thymic epithelial cells, responsible for ... [more ▼]

The thymic stroma plays a critical role in the generation of T lymphocytes by direct cell-to-cell contacts as well as by secreting growth factors or hormones. The thymic epithelial cells, responsible for thymic hormone secretion, include morphologically and antigenically distinct subpopulations that may exert different roles in thymocyte maturation. The recent development of thymic epithelial cell lines provided an interesting model for studying thymic epithelial influences on T cell differentiation. Treating mouse thymocytes by supernatants from one of TEC line (IT-76M1), we observed an induction of thymocyte proliferation and an increase in the percentages of CD4-/CD8- thymocytes. This proliferation was largely inhibited when thymocytes were incubated with IT-76M1 supernatants together with an anti-thymulin monoclonal antibody, but could be enhanced by pretreating growing epithelial cells by triiodothyronine. We suggest that among the target cells for thymulin within the thymus, some putative precursors of early phenotype might be included. [less ▲]

Detailed reference viewed: 14 (2 ULg)
Peer Reviewed
See detailInduction of tissue resorption in echinoderms
Dubois, P.; Bureau, Fabrice ULg; Gyoot, M.

Poster (1993)

Detailed reference viewed: 4 (0 ULg)
See detailInduction of tissue resorption in globiferous pedicellariae of the echinoid Sphaerechinus granularis
Dubois, P.; Ghyoot, M.; Bureau, Fabrice ULg

in David, B.; Guille, A.; Féral, J.-P. (Eds.) et al Echinoderms Through Time (1994)

Detailed reference viewed: 30 (3 ULg)
Peer Reviewed
See detailInduction of β-lactamase and low-affinity penicillin binding protein 2' synthesis in gram-positive bacteria
Joris, Bernard ULg; Hardt, Karin; Ghuysen, Jean-Marie ULg

in Ghuysen, Jean-Marie; Hakenbeck, Regine (Eds.) Bacterial Cell Wall. vol 27 (1994)

This chapter discusses the induction of β-lactamase and low-affinity penicillin binding protein 2' synthesis in Gram-positive bacteria. Resistance to β-lactam antibiotics can be β-lactamase-and/or ... [more ▼]

This chapter discusses the induction of β-lactamase and low-affinity penicillin binding protein 2' synthesis in Gram-positive bacteria. Resistance to β-lactam antibiotics can be β-lactamase-and/or penicillin-binding protein (PBP)-mediated. This chapter presents a review on the molecular mechanisms by which a β-lactam compound can induce β-lactamase synthesis in Bacillus lichenformis and both β-lactamase and low-affinity PBP2' synthesis in staphylococcus aureus. The mechanisms differ markedly from those responsible for chromosomal β-lactamase induction in Gram-negative bacteria. Regulation of β-lactamase and PBP2' synthesis is at the transcriptional level. Many bacterial repressors are dimeric molecules that recognize specific palindromic sequences of the DNA helix. The significance of the palindromic nature of these sequences is that the two DNA binding sites are related by an approximate twofold symmetry axis and that each subunit of the dimeric repressor has a helix-turn-helix (HTH) motif whose second (recognition) helix interacts at the major groove of the DNA in its B-form. Copyright © 1994 Published by Elsevier B.V. [less ▲]

Detailed reference viewed: 30 (4 ULg)
See detailInduction-Déduction en anthropologie
Strivay, Lucienne ULg; Genard, Jean-Louis

Conference (2008, May 16)

Detailed reference viewed: 72 (1 ULg)
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Peer Reviewed
See detailAn inductive and opportunistic detection of a pedagogical pattern in a 17 online course sample
Verpoorten, Dominique ULg; Poumay, Marianne ULg; Delcomminette, Séverine ULg et al

in Proceedings of the European Distance Education Network (2006)

LabSET (Support Lab for Telematic Learning – University of Liège, Belgium) applied a pedagogical pattern detection process on 17 online courses designed by faculty. The analysis unearths 11 instances of ... [more ▼]

LabSET (Support Lab for Telematic Learning – University of Liège, Belgium) applied a pedagogical pattern detection process on 17 online courses designed by faculty. The analysis unearths 11 instances of an activity structure named here RQAT (Reading-Questions/Answers-Test) which offers an alternative (among others) to the conventional lecturing, still extensively practiced in higher education. The recurrence and the relative invariance of the RQAT learning design legitimated an attempt to format it as a pedagogical pattern, used within LabSET's missions of teacher professional development. The conceptual documentation of RQAT suggests also an "illustration" of the pattern and its linkage to a taxonomy of skills. [less ▲]

Detailed reference viewed: 80 (31 ULg)
Peer Reviewed
See detailInductively coupled plasma-mass spectrometric (ICP-MS) analysis of silicate rocks and minerals
Vander Auwera, Jacqueline ULg; Bologne, Guy; Roelandts, Iwan et al

in Geologica Belgica (1998), 1

Detailed reference viewed: 36 (8 ULg)
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See detailInduire des changements de comportements
Partoune, Christine ULg

in Tableau de bord "Participation et espaces publics" - Pour un développement et une gestion concertée des espaces publics (2010)

Plus précisément, le titre de cette fiche devrait être "Induire des changements communs de comportements dans les processus de participation des citoyennes et des citoyens au développement et à la gestion ... [more ▼]

Plus précisément, le titre de cette fiche devrait être "Induire des changements communs de comportements dans les processus de participation des citoyennes et des citoyens au développement et à la gestion des espaces publiques". Partant d’une réflexion sur le sens des mots et des concepts ici-présents, ce document devrait aider l’animateur territorial à définir et emprunter la posture la plus adéquate, au moment d’accompagner un groupe dans de tels processus de participation. [less ▲]

Detailed reference viewed: 52 (7 ULg)
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Peer Reviewed
See detailIndustrial Advertising Effects and Budgeting Practices
Choffray, Jean-Marie ULg; Lilien, Gary L.; Silk, Alvin J. et al

in Journal of Marketing (1976), 40(January), 16-24

This paper is concerned with the determination of expenditure levels for industrial advertising. Its purpose is to review available research and to examine practices currently used in budgeting industrial ... [more ▼]

This paper is concerned with the determination of expenditure levels for industrial advertising. Its purpose is to review available research and to examine practices currently used in budgeting industrial marketing activities. [less ▲]

Detailed reference viewed: 29 (0 ULg)
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See detailIndustrial applications of extended output-only Blind Source Separation techniques
Rutten, Christophe ULg; Nguyen, Viet Ha; Golinval, Jean-Claude ULg

in Vibration Problems Icovp 2011: The 10th International Conference on Vibration Problems (2011)

In the field of structural health monitoring or machine condition moni-toring, most vibration based methods reported in the literature require to measure responses at several locations on the structure ... [more ▼]

In the field of structural health monitoring or machine condition moni-toring, most vibration based methods reported in the literature require to measure responses at several locations on the structure. In machine condition monitoring, the number of available vibration sensors is often small and it is not unusual that only one single sensor is used to monitor a machine. This paper presents industrial applications of two possible extensions of output-only Blind Source Separation (BSS) techniques, namely Principal Component Analysis (PCA) and Second Order Blind Identification (SOBI). Through the use of block Hankel matrices, these methods may be used when a reduced set of sensors or even one single sensor is available. The objective is to address the problem of fault detection in mechanical systems using subspace-based methods. The detection is achieved by comparing the subspace features between the reference and a current state using the concept of angular coherence between subspaces. [less ▲]

Detailed reference viewed: 38 (6 ULg)
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See detailIndustrial Biological Chemistry laboratory activities
Jacquet, Nicolas ULg; Richel, Aurore ULg

Conference (2015, November 26)

Detailed reference viewed: 17 (3 ULg)
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See detailIndustrial Biological Chemistry laboratory activities (GxABT-CBI)
Jacquet, Nicolas ULg

Conference (2015, November 26)

Detailed reference viewed: 20 (5 ULg)
Peer Reviewed
See detailIndustrial hazards and social factors: a question of vulnerability
Rossignol, Nicolas ULg; Turcanu, Catrinel

Conference (2013, October 09)

In order to analyze and try to mitigate the potential consequences of a hazard threatening a complex socio-technical system, the risk analysis framework is classically used. Many risk analysis models ... [more ▼]

In order to analyze and try to mitigate the potential consequences of a hazard threatening a complex socio-technical system, the risk analysis framework is classically used. Many risk analysis models recognize now widely the importance of integrating social aspects into the analysis. Another way to deal with potential consequences of hazards is to analyze the vulnerability of the system considered. This paradigm overcomes the shortcomings of risk analysis in situations when the knowledge about the probabilities and the outcomes is incomplete or insufficient. Studies in the literature considering natural hazards show that socio-economic factors are integrated more often and in a natural way in vulnerability analysis models. Nevertheless, it seems that such considerations are missing into models aiming at evaluating the vulnerability to an industrial hazard, especially at a very local level where the technical aspects seem to be predominant. What can we learn from the analysis of the models addressing vulnerability to natural hazards in terms of the integration of social factors? To answer this question, we realized a systematic literature review from scientific journal papers on vulnerability analysis published in the last two decades. We synthesize this review and we propose an integrated vulnerability analysis model; in order to test this model we use as a case-study the incident reports collected in a nuclear facility in Belgium. This confrontation allows us to highlight important factors to be taken into account for a vulnerability analysis conducted in such a context. [less ▲]

Detailed reference viewed: 55 (2 ULg)
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See detailIndustrial land restructuring in Wallonia at the light of the English case: a too (strong) competition between greenfield development and brownfield redevelopment
Halleux, Jean-Marie ULg

in Tira, M.; Ivanicka, K.; Spirkova, D. (Eds.) Industrial urban land redevelopment (2011)

Detailed reference viewed: 107 (14 ULg)