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See detailOn-farm contamination of animals with chemical contaminants
Saegerman, Claude ULg; Pussemier, Luc; Huyghebaert, André et al

in Revue Scientifique et Technique (International Office of Epizootics) (2006), 25(2), 655-673

Food products should not contain unsafe levels of chemical contaminants. However, it is not possible to monitor each and every one of the many thousands of chemicals that are used in our advanced ... [more ▼]

Food products should not contain unsafe levels of chemical contaminants. However, it is not possible to monitor each and every one of the many thousands of chemicals that are used in our advanced societies. Chemical contaminants in foodstuffs of animal origin may be classified into three categories: natural contaminants (e.g. mycotoxins), environmental contaminants linked to industrialisation and/or urbanisation (e.g. dioxins and dioxin-like compounds) and authorised chemical products (e.g. residues of veterinary medical products). Chemical hazards may contaminate foodstuffs of animal origin all the way from farm to fork. Contamination may occur in any of the different production systems, and it is difficult to make comparisons between production systems (e.g. extensive versus intensive farming systems) with regard to food safety. Even when we take into account the latest analytical methods, which can detect ever-smaller quantities of residues, the relative importance of chemical contaminants seems to have declined during recent decades due to improvements in information and prevention. Nonetheless, individual incidents can never be ruled out and may have serious economic, health or social repercussions. Particular attention must be paid to chemical hazards, in order to reduce as much as possible the risks to livestock and to the consumer. Continued monitoring and periodic reassessment of risks posed by these contaminants (at the national level) are needed to detect or anticipate new problems, so that appropriate actions can be taken in the interest of public health. More attention should be paid to the production of detailed information, especially with regard to background data (e.g. the objectives of the monitoring, sampling methods, chemicals to be analysed, analytical methods, detection limits, raw data and specified units), in order to obtain a better basis for risk assessment. Such risk assessment provides control authorities with an effective tool for the exchange of information and measures to be taken to ensure food safety. [less ▲]

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See detailPassive introduction of carrier fringes in real-time photorefractive interferometers for single interferogram analysis
Pauliat, Gilles; Roosen, Gérald; Georges, Marc ULg et al

in Journal of the European Optical Society (2006), 1

We propose a new technique to introduce carrier fringes in an holographic interferometric set-up for deformation or vibration analyses. This technique makes use of the anisotropic diffraction processes of ... [more ▼]

We propose a new technique to introduce carrier fringes in an holographic interferometric set-up for deformation or vibration analyses. This technique makes use of the anisotropic diffraction processes of photorefractive crystals. The main advantage of the proposed technique is that it just involves static components, no moving parts or active components are required. This technique is demonstrated in a real-time interferometric set-up operating at the wavelength of 1.06 μm and with a GaAs photorefractive crystal as the holographic medium. [less ▲]

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See detailSkin capacitance imaging, a new technique for investigating the skin surface.
Leveque, Jean-Luc; Xhauflaire, Emmanuelle ULg; Pierard, Gérald ULg

in European Journal of Dermatology (2006), 16(5), 500-6

Thanks to the recently introduced silicone image sensor technology, skin capacitance imaging has now been made possible. The dedicated device is called SkinChip. This method is easy to handle and provides ... [more ▼]

Thanks to the recently introduced silicone image sensor technology, skin capacitance imaging has now been made possible. The dedicated device is called SkinChip. This method is easy to handle and provides information about the skin microrelief, the level of stratum corneum hydration and the sweat gland activity. The apparatus sees and measures these parameters with a 50 microm resolution. A series of conditions have been explored using skin capacitance imaging. This review summarizes relevant findings about regional variability on the body, changes occurring with ageing, effects of a hydrating formulation, reactivity kinetics of corneocytes to surfactants, acne and skin pores characteristics, as well as hyperkeratotic dermatoses and tumours. [less ▲]

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See detailHow to combine citizenship and Diversities: The Challenge of a EU Multicultural citizenship?
Martiniello, Marco ULg

in Lewis, R. (Ed.) Multiculturalism Observed. Exploring Identity (2006)

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See detailBruxelles face à ses défis. Préface
Martiniello, Marco ULg

in Lambert, Stéphane (Ed.) Bruxelles. Identités Plurielles (2006)

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See detailLes enjeux de la représentation politique dans les sociétés d'immigration : quelques réflexions sur le cas belge
Martiniello, Marco ULg

in Khader, Bichara; Martiniello, Marco; Rea, Andrea (Eds.) et al Penser l'immigration et l'intégration autrement. Une initiative belge inter-universitaire (2006)

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See detailRelever les défis environnementaux pour les filières cotonnières
Abou Abba,, A.; Hofs, Jean-Luc; Mergeai, Guy ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2006)

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See detailStrenuous concentric and eccentric isokinetic exercises: specific fatigue patterns ?
Delvaux, François ULg; Bury, Thierry ULg; Lehance, Cédric ULg et al

in Abstract Book “Exercise and muscle physiology” de l’Ecole Doctorale en Sciences de la Motricité (2006)

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See detailMise au point d'une hyperferritinémie
Delwaide, Jean ULg; Giet, Didier ULg; Lamproye, Anne ULg et al

in Revue Médicale de Liège (2006), 61(5-6), 329-333

Hemochromatosis is the most common genetic disorder in persons of northern European descent, and the majority of cases are caused by a mutation in the gene HFE. Genetic testing for hemochromatosis is ... [more ▼]

Hemochromatosis is the most common genetic disorder in persons of northern European descent, and the majority of cases are caused by a mutation in the gene HFE. Genetic testing for hemochromatosis is therefore indicated in all patients with increases in transferrine saturation and ferritin levels. When this genetic testing does not demonstrate a hemochromatosis, other diseases responsible for elevated ferritin levels have to be ruled out, mainly hemolytic anemia, chronic inflammatory disorders, liver diseases such as hepatitis B or C, alcohol abuse, and non alcoholic fatty liver disease. In demonstrated iron overload with absence of classic causes, second-line genetic testing should be considered. [less ▲]

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See detailS100B protein expression in the amnion and amniotic fluid in pregnancies complicated by pre-eclampsia.
Tskitishvili, Ekaterine ULg; Komoto, Yoshiko; Temma-Asano, Kumiko et al

in Molecular Human Reproduction (2006), 12(12), 755-61

Our aim was to investigate the expression of S100B protein in the amnion and to assess the amniotic fluid concentration in pregnancies complicated by pre-eclampsia. Samples were obtained from women who ... [more ▼]

Our aim was to investigate the expression of S100B protein in the amnion and to assess the amniotic fluid concentration in pregnancies complicated by pre-eclampsia. Samples were obtained from women who developed pre-eclampsia (n = 7), pre-eclampsia with intrauterine growth retardation (IUGR) (n = 4), normotensive IUGR (n = 7) and gestational hypertension (n = 4) during pregnancy and healthy controls who delivered at term (n = 35). To determine the difference in the expression of S100B in the amnion, we performed immunohistochemistry, western blot analysis and RT-PCR. Using enzyme-linked immunosorbent assay (ELISA), we assessed the S100B concentration in amniotic fluid. The S100B mRNA expression in the amnion of pre-eclamptic patients and patients with pre-eclampsia with IUGR was significantly higher than that in the control. The amniotic fluid S100B protein concentration of the pre-eclampsia and normotensive IUGR cases was significantly higher than that of the control. This study shows that amnion could be a source responsible for the increased concentration of S100B in amniotic fluid. In pre-eclampsia, reactive oxygen species (ROS) are generated by oxidative stress. Some pathological conditions that develop during pregnancy and are related to hypoxic stress can affect the elevation of S100B concentration in the amnion. [less ▲]

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See detailL’évolution du droit des étrangers
Carlier, Jean-Yves ULg

in Khader, Bichara; Martiniello, Marco; Rea, Andrea (Eds.) et al Penser l’immigration et l’intégration autrement (2006)

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See detailEvaluation des troubles fonctionnels du système respiratoire du cheval
Salinas, E.; Van Erck, Emmanuelle ULg; Lekeux, Pierre ULg et al

in Pratique Vétérinaire Equine (2006), 38(150), 29-39

Les troubles respiratoires sont fréquents chez le cheval. Il existe des tests fonctionnels complémentaires, réalisables soit sur le terrain soit en centres spécialisés.

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See detailImmune-mediated respiratory and cardiac disease
Clercx, Cécile ULg; Day, M. J.

in Clinical Immunology of the Dog and Cat (2006)

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See detailLa validation des compétences acquises dans les métiers de l'interaction humaine : situations d'évaluation et instrumentation
Beckers, Jacqueline ULg; Andrianne, Sabine

in Figari, Gérard; Rodrigues, Pedro; Palmira Alves, Maria (Eds.) et al Évaluation des compétences et apprentissages expérientiels : Savoirs, modèles et méthodes (2006)

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See detailRéseaux et institution faible
Denis, Benoît ULg; Aron, Paul

in Denis, Benoît; de Marneffe, Daphné (Eds.) Les Réseaux littéraires (2006)

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See detailElectroantennogram of Culex quinquefasciatus Say (Diptera:Culicidae) to chemical compounds from fermented infusions and improvement of gravid mosquito trapping
Latte, Nicolas ULg

Master's dissertation (2006)

The urban mosquito Culex quinquefasciatus Say (Diptera: Culicidae) uses chemicals to locate suitable water pools for oviposition. These chemicals when identified can be used to trap gravid female ... [more ▼]

The urban mosquito Culex quinquefasciatus Say (Diptera: Culicidae) uses chemicals to locate suitable water pools for oviposition. These chemicals when identified can be used to trap gravid female mosquitoes. Experiments in Davis and in Sacramento (California, in the United States) were made to improve the trapping efficiency of Reiter/Cumming gravid traps baited by several attractants (or attractant blends). Unfortunately, it appeared that the number of gravid female mosquitoes collected was not sufficient to differentiate the efficacy of attractant blends tested by statistical analysis. However, a positive correlation between the total mosquito number collected daily and the highest humidity shows that the mosquito oviposition activity seems to be influenced by the humidity during the night. Observations on total number of mosquitoes and the highest temperature seem to reveal a threshold temperature which is critical for the adult mosquito survival. A coupled gas chromatography – electronantennography (GC-EAD) protocol was also developed step by step in order to find new Culex quinquefasciatus oviposition attractants. After obtaining repetitive electroantennographic (EA) response, two comparison experiments (SPME fiber type and infusion type) were made to finalize the specific GC-EAD/SPME protocol. This with the aim to prospect new attractants from fermented Bermuda grass infusion. Analyses based on all results permit to distinguish the EA responses from random perturbations (electromagnetic and vibration). GC-EAD/SPME of Bermuda grass infusion analyses confirms the presence of 10 and the activity of 9 chemical compounds as established by Du and Millar in 1999. Furthermore, experiments on Culex quinquefasciatus performed with the new protocol, brought to light the EA activity of 10 other unknown chemicals, 7 of which are low molecular weight chemical compounds. These new chemicals have now to be identified and their ability to elicit EA responses still has to be confirmed. [less ▲]

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See detailEtude de la diversité des pucerons et des auxiliaires adiphages relative à la présence d'orties en bordures de champ
Alhmedi, A.; Francis, Frédéric ULg; Bodson, Bernard ULg et al

in Notes Fauniques de Gembloux (2006), 59(2), 121-124

Detailed reference viewed: 35 (6 ULg)