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See detailDermatoses photo-aggravées.
Goffin, Véronique ULg; Nikkels, Arjen ULg; Pierard, Gérald ULg

in Revue Médicale de Liège (2005), 60 Suppl 1

A series of viral and bacterial diseases are photoaggravated. Some autoimmune connective tissue disorders including lupus erythematosus and dermatomyositis are also affected. This category of ... [more ▼]

A series of viral and bacterial diseases are photoaggravated. Some autoimmune connective tissue disorders including lupus erythematosus and dermatomyositis are also affected. This category of photoexacerbated diseases also encompasses some cases of atopic dermatitis, lichen and rosacea. [less ▲]

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See detailDistribution of varicella-zoster virus DNA and gene products in tissues of a first-trimester varicella-infected fetus.
Nikkels, Arjen ULg; Delbecque, Katty ULg; Pierard, Gérald ULg et al

in Journal of Infectious Diseases (2005), 191(4), 540-5

Precise information about varicella-zoster virus (VZV) infection in first-trimester fetuses remains sketchy. After varicella infection was diagnosed in a woman, her 12-week-old fetus was aborted and was ... [more ▼]

Precise information about varicella-zoster virus (VZV) infection in first-trimester fetuses remains sketchy. After varicella infection was diagnosed in a woman, her 12-week-old fetus was aborted and was investigated, by histological examination, virus culturing, polymerase chain reaction, in situ hybridization (ISH), and immunohistochemistry (IHC), for the presence of VZV infection. Only the results of the histological examination suggested the presence of alpha -herpesvirus infection, in the gastrointestinal tract and liver; results of ISH were positive for VZV, and results of IHC staining were positive for intermediate early protein 63 (IE63) but negative for glycoprotein E (gE), in the dorsal root ganglia (DRG), meninges, gastrointestinal tract, pancreas, smooth muscle, liver, and placental trophoblast, indicating the presence of a nonproductive, latency-like VZV infection. Only the gastrointestinal tract and liver exhibited simultaneous staining for IE63 and gE, a result suggesting that active replication of VZV was present. In conclusion, widespread nonproductive VZV infection in the absence of histological clues is an early event in VZV infection in fetuses. The observed gene-expression pattern in most tissues resembles that of latent VZV infection in DRG. Latency-like infection in nonneural cell types may potentially reactivate, leading to multifocal necrosis, fibrosis, and dystrophic calcifications, as observed in advanced congenital varicella syndrome. [less ▲]

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See detailProduct Specialization, Efficiency and Productivity Change in the Spanish Insurance Industry
Fuentes, Hugo; Griffel-Tatjé, Emili; Perelman, Sergio ULg

Report (2005)

In this paper we analyze the levels of technical efficiency and productivity growth attained by Spanish insurance companies during a period of deregulation. We compute Malmquist productivity indexes using ... [more ▼]

In this paper we analyze the levels of technical efficiency and productivity growth attained by Spanish insurance companies during a period of deregulation. We compute Malmquist productivity indexes using the estimates of parametric distance function for several specialized insurance branches. In this way, we show that branch specialization matters a great deal and that firms combining two or three product lines (Health, Property-Liabilities and Life) perform better than firms operating in one insurance line exclusively. In the light of these results, we recommend that the remaining restrictions coming from the European Third Directives on the operations of multi-branch firms should be removed. Moreover, from a management point of view, it would be appropriate to encourage the creation of multi-branch insurance firms. However, in all cases, the estimated scores indicate low productivity growth (less than 2% per year) compared with a huge increase in insurance activity (premiums were multiplied by nearly 3 in a decade) [less ▲]

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See detailThe benefits of separating early retirees from the unemployed: simulation results for Belgian wage earners
Desmet, Raphaël; Jousten, Alain ULg; Perelman, Sergio ULg

Report (2005)

The pool of early retirees is characterized by a large heterogeneity along several criteria. The present paper focuses on the key distinction between those in forced early retirement and those who retire ... [more ▼]

The pool of early retirees is characterized by a large heterogeneity along several criteria. The present paper focuses on the key distinction between those in forced early retirement and those who retire early by individual choice. We start by estimating a retirement probit model for older workers in Belgium. Based on these estimates, we then perform micro-simulations relating to a hypothetical actuarial reform of a pension system, i.e., a reform imposing on average actuarial neutrality with respect to the time of retirement. We explore two scenarios, one where the entire population is subjected to the actuarial system, and one where a duly screened sub-sample of the unemployed is shielded against these actuarial adjustment factors, a group we call the truly unemployed. We evaluate the impact on the average retirement age, the pension budgets as well as indicators of redistribution within the group of the elderly. We find that the extra budgetary gain of exposing this subgroup to the full-blown reform is modest, while the distributional cost is rather high. Our results thus comfort the idea that the budgetary cost of a focused unemployment system are moderate, and that returning the unemployment insurance to its primary role might be a desirable strategy. [less ▲]

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See detailSocial Security in Belgium: Distributive Outcomes
Jousten, Alain ULg; Lefebvre, Mathieu ULg; Pestieau, Pierre ULg et al

Report (2005)

The paper analyzes the link between old-age income programs and economic outcomes in Belgium. We use a simulation methodology to construct an average pension generosity variable. Our regression analysis ... [more ▼]

The paper analyzes the link between old-age income programs and economic outcomes in Belgium. We use a simulation methodology to construct an average pension generosity variable. Our regression analysis explores the link with distributional outcomes in income, consumption and more subjective indicators. Results document the weak link between average generosity and distributional outcomes across a heterogeneous population. [less ▲]

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See detailDroit de la concurrence et recours en annulation à l'ere post-modernisation
Petit, Nicolas ULg

in Revue Trimestrielle de Droit Européen (2005)

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See detailRaising the age of retirement: an example of political ratchet effect
Lefebvre, Mathieu ULg; Pestieau, Pierre ULg; Vidal, Jean-Pierre et al

Report (2005)

Political resistance to a progressive increase in the retirement age is widespread in a number of European countries. We present a simple model explaining why such a reform can be opposed even when it is ... [more ▼]

Political resistance to a progressive increase in the retirement age is widespread in a number of European countries. We present a simple model explaining why such a reform can be opposed even when it is profitable to a majority of citizens. Then, we try to explain the existence of wide differences in the average length of retirement across countries and over time. [less ▲]

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See detailVieillissement, qualité de l’encodage et faux souvenirs.
Dehon, Hedwige ULg; Brédart, Serge ULg

in Taconnat, Laurence; Vanneste, Sandrine; Clarys, David (Eds.) et al Manifestations cognitives du vieillissement psychologique. Actes des VIIème Journées d’étude du Vieillissement Cognitif (2005)

The current experiment explored the effect of enhancing the quality of encoding on the creation of false memories in older participants. Three groups of participants (1 group of younger adults and two ... [more ▼]

The current experiment explored the effect of enhancing the quality of encoding on the creation of false memories in older participants. Three groups of participants (1 group of younger adults and two groups of older adults) were presented with a modified version (Brédart, 2000) of the DRM paradigm (Roediger & McDermott, 1995) which permitted to elicit false recall. We used a short interstimuli interval (ISI of 1.5 sec) in the younger and the older control group. A slower rate of presentation was used in the experimental older group (ISI of 3 seconds). The comparison of younger and older controls confirmed a greater susceptibility to false memories in the elderly. In addition, supporting our predictions, when both older groups were compared, lengthening of the ISI led to : a) an improvement of the quality of the encoding, b) an improvement of the source monitoring. These data suggest that the deficits in source monitoring, resulting in the higher sensibility to false memories in older adults, might be related to a differential encoding of the material that would not allow the correct binding of items and their presentation context durant the learning phase. [less ▲]

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See detailMalattia e introspezione
Dondero, Maria Giulia ULg

in Marrone, Gianfranco (Ed.) Il discorso della salute. Verso una sociosemiotica medica (2005)

Cet article étudie le genre photographique du portrait et celui de la nature morte en les mettant en relation avec la représentation de la maladie et de la déformation corporelle. On analyse un corpus ... [more ▼]

Cet article étudie le genre photographique du portrait et celui de la nature morte en les mettant en relation avec la représentation de la maladie et de la déformation corporelle. On analyse un corpus d’images photographiques de l’artiste J.-P. Witkin qui mettent en scène des corps affectés par le dysfonctionnement des organes. Ces derniers ne sont pas représentés comme des corps vivants et uniques, différemment de ce qui se passe dans le genre pictural du portrait (qui implique une forme de vie singularisante), mais ils figurent comme des objets de design ou comme des natures mortes. Cette recherche met donc en évidence l’écart entre les genres stabilisés dans la tradition picturale et les genres photographiques. [less ▲]

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See detailAstronomes célèbres et astronomes moins connus ... (6) John Flamsteed
Biémont, Emile ULg

in Galactée (2005), 46

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See detailLes unités de division du temps
Biémont, Emile ULg

in Bulletin de la Société Royale des Sciences de Liège (2005), 74(4), 243-269

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See detailLe transfert d’une méthode de dosage automatisée de 3 catécholamines majeures dans l’urine humaine: utilisation de l’erreur totale comme critère de décision
Rozet, Eric ULg; Dewé, W.; Chiap, Patrice ULg et al

Conference (2005)

Objectif : Un transfert analytique consiste à transférer physiquement une méthode analytique précédemment validée depuis le laboratoire émetteur vers un laboratoire receveur après avoir démontré que le ... [more ▼]

Objectif : Un transfert analytique consiste à transférer physiquement une méthode analytique précédemment validée depuis le laboratoire émetteur vers un laboratoire receveur après avoir démontré que le laboratoire receveur maîtrise la méthode. Il est donc essentiel d’avoir toutes les garanties que la méthode est en effet maîtrisée par le laboratoire receveur. Deux nouvelles approches statistiques basées sur l’utilisation de l’erreur totale comme outil de décision quant à la validité d’un transfert de méthodes analytiques ont été décrites (1). Nous nous proposons ici de montrer l’applicabilité de ces deux approches au cas du transfert d’une méthode de dosage automatique de trois catécholamines majeures dans l’urine humaine. [less ▲]

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See detailDetermination of the optimal forging conditions of a Cr-Mo-V high alloy steel through a microstructural, thermophysical and mechanical study
Bouffioux, Chantal ULg; Carton, Marc ULg; Lecomte-Beckers, Jacqueline ULg et al

in Banabic, D. (Ed.) Proceedings of the 8th ESAFORM Conference on Material Forming (Vol. 1) (2005)

The forging process of cylinders requires the knowledge of material recrystallisation conditions to prevent crack appearance. Due to the continuous recrystallisation during forging, very large ... [more ▼]

The forging process of cylinders requires the knowledge of material recrystallisation conditions to prevent crack appearance. Due to the continuous recrystallisation during forging, very large deformations can be applied as the generated dislocations do not yield to hardening but to recrystallisation phenomenon. This paper summarizes the data identification of a FEM recrystallisation model and defines the optimal forging process for one roll. [less ▲]

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See detailFinit element modelling of an asynchronous motor with one broken rotor bar, comparison with the data recorded on a prototype and material aspects
Guérard, Suzanne ULg; Gyselinck, Johan; Lecomte-Beckers, Jacqueline ULg

in Bulletin Scientifique de l'AIM (Association des Ingénieurs Electriciens sortis de l'Institut Electrotechnique Montefiore) (2005), 1

This work studies the problem of broken rotor bars in cage induction motors. To this aim, an induction machine from WEG Motors was modelled by means of the finite element method. The motor modelled is a ... [more ▼]

This work studies the problem of broken rotor bars in cage induction motors. To this aim, an induction machine from WEG Motors was modelled by means of the finite element method. The motor modelled is a 18.5 kW four-pole induction motor with a straight rotor cage. The field distribution and stator phase currents were computed for a motor without broken rotor bars and for a motor with one broken rotor bar. The computed stator phase currents were compared to the ones recorded on motors respectively no broken rotor bar and with one broken rotor bar. The FE model and an equivalent scheme of the motor permitted to show that the resistance of the rotor cage was higher than expected, considering only the temperature effect on the conductivity of the rotor bars. A metallurgic analysis of the aluminium alloy of two rotor bars revealed the presence of a very high density of silicon and silicon oxide inclusions, as well as the presence of shrinkages and cracks, which have a negative impact on both conductivity and mechanical strength. A corrected value of the rotor bar conductivity was used in the finite element model and led to a good agreement with the experimental results. The field perturbation associated with a broken rotor bar produces a concentration of flux near the bar ahead of the broken one, considering the counterclockwise direction of rotation of the rotor. This flux concentration results in higher current values and hence in higher stresses in the bar ahead of the broken one. [less ▲]

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See detailMédiations, populations et institutions
Jamin, Jérôme ULg

in Non marchand : Management, Droit et Finance (2005), 15/1

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See detailThe Extreme Right in Europe : Fascist or Mainstream
Jamin, Jérôme ULg

in The Public Eye (2005), 19/1

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