References of "2006"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailPensions with endogenous and stochastic fertility
Cremer, Helmuth; Gahvari, Firouz; Pestieau, Pierre ULg

in Journal of Public Economics (2006), 90(12), 2303-2321

This paper studies the design of a pay-as-you-go social security system in an overlapping generations model where fertility is in part stochastic and in part determined through capital investment. If ... [more ▼]

This paper studies the design of a pay-as-you-go social security system in an overlapping generations model where fertility is in part stochastic and in part determined through capital investment. If investments are publicly observable, pension benefits must be linked positively to the level of investment, and payroll taxes negatively to the number of children. The outcome is characterized by full insurance with all parents, regardless of their number of children, enjoying identical consumption levels. Without observability, benefits must increase, and payroll taxes decrease, with the number of children. The second-best level of investment, and the resulting average fertility rate, are less than their corresponding first-best levels. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

Detailed reference viewed: 33 (1 ULg)
Full Text
Peer Reviewed
See detailMultisegmented tangential breast fields: an effective step towards IMRT without a significantly higher secondary cancer risk
GULYBAN, Akos ULg; Kovács, Péter; Bellyei, Szabolcs et al

in Radiotherapy & Oncology (2006), 81(suppl 1), 172

Detailed reference viewed: 3 (0 ULg)
Full Text
Peer Reviewed
See detailMathematical modeling of bone regeneration including the angiogenic process
Geris, Liesbet ULg; Vander Sloten, Jos; Van Oosterwyck, Hans

in Journal of Biomechanics (2006), 39(S1), 411-412

Detailed reference viewed: 12 (0 ULg)
Peer Reviewed
See detailRole of lipopeptides in the biological control activity of Bacillus subtilis
Ongena, Marc ULg; Jourdan, E.; Adam, A. et al

Conference (2006)

Detailed reference viewed: 15 (5 ULg)
Full Text
See detailTraducción y primera persona en Victoria Ocampo
Willson, Patricia ULg

in Bocchino, Adriana A. (Ed.) V.O. (2006)

Detailed reference viewed: 11 (2 ULg)
Full Text
See detailALADDIN: an optimized ground-based precursor for DARWIN
Coudé du Foresto, Vincent; Absil, Olivier ULg; Barillot, Marc et al

in Aime, C.; Vakili, F. (Eds.) Direct Imaging of Exoplanets: Science & Techniques (2006)

The ALADDIN concept is an integrated Antarctic-based L-band experiment whose purpose is to demonstrate nulling interferometry and to prepare the DARWIN mission. Because of their privileged location, the ... [more ▼]

The ALADDIN concept is an integrated Antarctic-based L-band experiment whose purpose is to demonstrate nulling interferometry and to prepare the DARWIN mission. Because of their privileged location, the relatively modest collectors (1 m) and baseline (up to 40 m) are sufficient to achieve a sensitivity (in terms of detectable zodi levels) which is about twice better than that of a nulling instrument on a large interferometer (such as GENIE at the VLTI), and to reach the 20-zodi threshold value identified to carry out the DARWIN precursor science. These numbers are based on a preliminary design study by Alcatel Alenia Space and were obtained using the same simulation software as the one employed for GENIE. The integrated design enables top-level optimization and full access to the light collectors for the duration of the experiment, while reducing the complexity of the nulling breadboard. [less ▲]

Detailed reference viewed: 9 (1 ULg)
Full Text
Peer Reviewed
See detailTechnology readiness and the evaluation and adoption of self-service technologies
Van Riel, Allard ULg; Liljander, Veronica; Gillberg, Filippa et al

in Journal of Retailing and Consumer Services (2006), 13(3), 177-191

s companies struggle to persuade their customers to adopt new self-service technologies (SSTs), it has become increasingly important to understand the factors affecting customers’ attitudes towards these ... [more ▼]

s companies struggle to persuade their customers to adopt new self-service technologies (SSTs), it has become increasingly important to understand the factors affecting customers’ attitudes towards these SSTs and their adoption behaviour. Technology readiness (TR), i.e. the customer's mental readiness to accept new technologies, has been proposed as such a factor. TR comprises four dimensions: innovativeness, optimism, discomfort and insecurity. This article investigates the effects of TR on customers’ (1) attitudes towards using SST for airline check-in, (2) adoption of self-service check-in, and (3) evaluations of a new self-service check-in on the Internet, in terms of perceived service quality, satisfaction and loyalty. An empirical study was conducted among loyalty program customers of a European airline, having access to Internet check-in. Data were collected with online and traditional mail surveys, resulting in 1258 usable responses. Analysis of the data revealed that only optimism and innovativeness formed unique individual dimensions. Furthermore, TR had surprisingly little impact on customer attitudes towards SST, on adoption behaviour, and on SST evaluations. Optimism explained consumer behaviour towards SSTs best, whereas innovativeness had only a marginal effect on attitudes towards using the Internet or a mobile phone to check-in. The article concludes with a discussion of the validity of the TR construct and suggestions for future research. Managerial implications are provided. [less ▲]

Detailed reference viewed: 357 (7 ULg)
Peer Reviewed
See detailEffect of parental socio-educational level on memory and attentional measures in children
Catale, Corinne ULg; Hogge, Michaël; Meulemans, Thierry ULg

in Book of Abstracts: Annual Meeting of the Belgian Association for Psychological Science (2006)

In developmental neuropsychology, information about the influence of educational variables on executive and memory development is limited. This is particularly surprising when considering the adult ... [more ▼]

In developmental neuropsychology, information about the influence of educational variables on executive and memory development is limited. This is particularly surprising when considering the adult literature regarding the social and cultural effects on cognitive performances, which provide evidence that groups with higher levels of education achieve better on most neuropsychological tests (Ostrosky, Ardila, & Rosselli, 1999). The aim of this study was to analyze the relation between parents’ educational level and executive, attentional, memory and intellectual measures. Memory tasks (working and episodic memory), executive (inhibition and switching), attentional (alertness and selective attentional task) and intellectual tasks (verbal and non verbal subtests of WISC-III) were individually administered to 96 children divided according to 2 variables: age (6 and 10 years old) and parent’s educational level (University, High School and Elementary Education). Results showed an expected significant association between age and performance on all cognitive tasks. There was also a significant effect of parents’ educational level on most verbal tasks performed by children (including memory and verbal intellectual subtests) but also on various executive and attentional tasks (alertness, switching and inhibition tasks). Results confirmed that educational variables significantly influence children cognitive performances and not for only intelligence and verbal tasks, and emphasizes the need of further studies to specify the influence of education on the development of cognition. [less ▲]

Detailed reference viewed: 22 (3 ULg)
Full Text
Peer Reviewed
See detailRegulation by androgens of EGF receptor family members in prostate cancer cells
Pignon, Jean-Christophe; Delacroix, Laurence ULg; Waltregny, David ULg et al

in Proceedings of the American Association for Cancer Research (2006)

After an initial positive response to anti-androgen treatment, prostate cancer (PCa) cells usually become hormone-refractory in spite of their persistent expression of the androgen receptor (AR ... [more ▼]

After an initial positive response to anti-androgen treatment, prostate cancer (PCa) cells usually become hormone-refractory in spite of their persistent expression of the androgen receptor (AR). Overexpression of tyrosine kinase receptors in androgen-deprived PCa cells, such as those of the EGF receptor (EGFR) family, may be responsible for AR activation and growth of androgen-deprived tumours. Our goal is to understand the control of the expression of the EGFR family members by androgens in PCa. Hormone response was compared in hormone-sensitive LNCaP and hormone-insensitive DU145 PCa cell lines. These cells do not express ErbB4. EGFR, erbB2 and erbB3 protein half-life is much longer in DU145 than in LNCaP cells grown in complete medium. Dihydrotestosterone (DHT) modulates EGFR and erbB2 transcript and protein levels only in LNCaP cells. ErbB3 is not an androgen-responsive gene. EGFR mRNA and protein levels are increased while erbB2 mRNA and protein levels are decreased after DHT treatment of cells cultured in steroid-deprived medium. ErbB2 mRNA and protein levels are increased in LNCaP cells following DHT withdrawal. In order to understand the mechanisms by which androgens control the expression of EGFR and ERBB2 genes, half lifes of the corresponding mRNAs and proteins were compared in cells grown in presence or absence of DHT. The effect of DHT on EGFR gene expression is complex. Indeed, DHT stabilizes the protein. Moreover, a superinduction of EGFR mRNA was observed in cells treated with cycloheximide (CHX) before addition of the hormone, suggesting an effect on transcript stability. In contrast, erbB2 mRNA and protein stability was not affected by DHT. CHX treatment for 2h before addition of DHT suppresses the androgen-induced down-regulation of erbB2 mRNA levels. In summary, androgen-mediated regulation of EGFR and ERBB2 genes expression is complex. DHT influences EGFR gene transcription, mRNA and protein stability. DHT does not affect erbB2 mRNA and protein stability but acts indirectly on transcription. Current experiments are undertaken to verify these observations by Chromatin-IP experiments on both genes promoters. [less ▲]

Detailed reference viewed: 51 (3 ULg)
Full Text
See detailDéchiffrer Vénus. Renaissance et âge classique
Droixhe, Daniel ULg

in Journal de la Renaissance. IV (2006)

Detailed reference viewed: 54 (2 ULg)
Full Text
Peer Reviewed
See detailPreferential risk of HPV16 for squamous cell carcinoma and of HPV18 for adenocarcinoma of the cervix compared to women with normal cytology in The Netherlands.
BULK, Saskia ULg; Berkhof, J.; Bulkmans, N. W. J. et al

in British journal of cancer (2006), 94(1), 171-5

We present the type-distribution of high-risk human papillomavirus (HPV) types in women with normal cytology (n=1467), adenocarcinoma in situ (ACIS) (n=61), adenocarcinoma (n=70), and squamous cell ... [more ▼]

We present the type-distribution of high-risk human papillomavirus (HPV) types in women with normal cytology (n=1467), adenocarcinoma in situ (ACIS) (n=61), adenocarcinoma (n=70), and squamous cell carcinoma (SCC) (n=83). Cervical adenocarcinoma and ACIS were significantly more frequently associated with HPV18 (OR(MH) 15.0; 95% CI 8.6-26.1 and 21.8; 95% CI 11.9-39.8, respectively) than normal cytology. Human papillomavirus16 was only associated with adenocarcinoma and ACIS after exclusion of HPV18-positive cases (OR(MH) 6.6; 95% CI 2.8-16.0 and 9.4; 95% CI 2.8-31.2, respectively). For SCC, HPV16 prevalence was elevated (OR(MH) 7.0; 95% CI 3.9-12.4) compared to cases with normal cytology, and HPV18 prevalence was only increased after exclusion of HPV16-positive cases (OR(MH) 4.3; 95% CI 1.6-11.6). These results suggest that HPV18 is mainly a risk factor for the development of adenocarcinoma whereas HPV16 is associated with both SCC and adenocarcinoma. [less ▲]

Detailed reference viewed: 4 (1 ULg)
Full Text
Peer Reviewed
See detailLos 'sin voz' y los intelectuales en México. Reflexiones sobre algunos ensayos de Mariano Azuela, Octavio Paz y el EZLN.
Vanden Berghe, Kristine ULg

in Latinoamérica. Revista de estudios latinoamericanos. (2006), 42(1), 131-152

Detailed reference viewed: 39 (7 ULg)
See detailA novel mathematical model to simulate and predict tissue regeneration
Geris, Liesbet ULg; Vander Sloten, Jos; Van Oosterwyck, Hans

in Middleton, J.; Jones, M. L.; Shrive, N. (Eds.) Proceedings of the 7th international symposium on Computer Methods in Biomechanics and Biomedical Engineering (2006)

Detailed reference viewed: 2 (0 ULg)
Full Text
See detailStress constrained optimization using X-FEM and Level-Set description
Van Miegroet, Laurent ULg; Jacobs, Thibault; Lemaire, Etienne ULg et al

in Proceedings of III European Conference on Computational Mechanics. Solids, Structures and Coupled Problems in Engineering (2006)

This paper presents and describes an intermediate approach which takes its place between the two classical methods of shape and topology optimization. It is based on using the recent Level Set description ... [more ▼]

This paper presents and describes an intermediate approach which takes its place between the two classical methods of shape and topology optimization. It is based on using the recent Level Set description of the geometry and the novel eXtended Finite Element Method (X-FEM). The method benefits from the fixed mesh work using X-FEM and from the curves smoothness of the Level Set description. Design variables are shape parameters of basic geometric features. The number of design variables of this formulation remains small whereas various global and local constraints can be considered. A key problem which is investigated here is the sensitivity analysis and the way it can be carried out precisely and efficiently. Numerical applications revisit some classical 2D (academic) benchmarks from shape optimization and illustrate the great interest of using X-FEM and Level Set description together. The paper presents the results of stress constrained problems using the proposed X-FEM and Level Set based formulation. A central issue is the sensitivity analysis (related to the compliance and/or the stresses) and the way it can be carried out efficiently. A special attention is also paid to stress constrained problems which are often neglected in other Level Set Methods works. [less ▲]

Detailed reference viewed: 47 (5 ULg)
Peer Reviewed
See detailThe grammaticalization of small size nouns
Brems, Lieselotte ULg

Conference (2006)

Detailed reference viewed: 4 (1 ULg)
Full Text
Peer Reviewed
See detailAmelioration de la methode d'extraction d'ADN au CTAB appliquee aux feuilles de cotonnier.
Benbouza, H.; Baudoin, Jean-Pierre ULg; Mergeai, Guy ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2006), 10(2), 73-76

Detailed reference viewed: 25 (4 ULg)
See detailApport de la microchirurgie dans les plaies de la main - Résultats des réimplantations
HEYMANS, O; CARLIER, Alain ULg

in Chirurgie des plaies (2006)

Detailed reference viewed: 14 (2 ULg)