Routes for the preparation of advanced polymer/carbon nanoparticles based materials

Poster (2010, November 29)

Routine Fetal Rhd Genotyping with Maternal Plasma: A Four-Year Experience in Belgium

in Transfusion (2008), 48(2), 373-81

BACKGROUND: The objective was to evaluate the diagnostic value of RHD fetal genotyping from the plasma of D- mothers as soon as 10 weeks' gestation in a routine clinical practice in Belgium. STUDY DESIGN ... [more ▼]

BACKGROUND: The objective was to evaluate the diagnostic value of RHD fetal genotyping from the plasma of D- mothers as soon as 10 weeks' gestation in a routine clinical practice in Belgium. STUDY DESIGN AND METHODS: A prospective study was conducted between November 2002 and December 2006. DNA extraction was performed in an automated closed tube system. Fetal RHD/SRY genotypes were detected in the plasma of 563 pregnant mothers by real-time polymerase chain reaction (PCR) targeting multiple exons 4, 5, and 10 of the RHD gene and targeting an SRY gene sequence. These were compared to the D phenotypes determined in the 581 babies they delivered. RESULTS: By combining amplification of three exons, the concordance rate of fetal RHD genotypes in maternal plasma and newborn D phenotypes at delivery was 100 percent (99.8% including one unusual false-positive). The presence of nonfunctional RHD genes and the absence of a universal fetal marker, irrespective of fetal sex, did not influence the accuracy of fetal RhD status prediction. The RHD genotyping from 18 twin pregnancies was also assessed. Five weak D women were excluded from the RHD fetal genotyping prediction. Three discrepant results (0.5%) between predicted fetal genotype and cord blood phenotype were not confirmed by the baby phenotypes from venipuncture blood. CONCLUSION: Prenatal prediction of fetal RHD by targeting multiple exons from the maternal plasma with real-time PCR is highly sensitive and accurate. Over 4 years, this experience has highly modified our management of D- pregnant women. [less ▲]

Routine ultrasound screening for abdominal aortic aneurysm among 65- and 75-year-old men in a city of 200,000 inhabitants.

in Annals of Vascular Surgery (1998), 12(6), 544-9

Unruptured abdominal aortic aneurysm (AAA) is seldom recognized. Thus it is difficult to know whether the incidence of AAA in the general population is high enough to warrant routine screening at least in ... [more ▼]

Unruptured abdominal aortic aneurysm (AAA) is seldom recognized. Thus it is difficult to know whether the incidence of AAA in the general population is high enough to warrant routine screening at least in men after a certain age. Ultrasound screening studies to evaluate the incidence of AAA have been carried out in several English-speaking and Scandinavian countries. The purpose of this report is to describe the results of a study carried out in Belgium. All 65- and 75-year-old men living in the city of Liege, Belgium, were given the opportunity to undergo a free ultrasound examination. Only 41% of the target population was examined. AAA defined as abdominal aortic diameter of >30 mm was observed in 28 subjects (incidence: 3.8%). Mean abdominal aortic diameter was 34.7 mm. A diameter >29 mm was observed in 33 subjects (incidence 4.5%). Mean abdominal aortic diameter was 30.4 mm. On the basis of epidemiological data collected, a high-risk population for AAA was identified. Arterial hypertension (p < 0.05), previous coronary artery surgery (p < 0.05), and smoking (p < 0.06) were more common in subjects with than without AAA. The overall cost of screening was $18.175. The cost per AAA diagnosed was $551.00. [less ▲]

Routing in a MPLS network featuring preemption mechanisms

(2003, February)

In the context of Multiprotocol Label Switching (MPLS), we propose an integration of a computationally efficient preemption mechanism into a very dynamic Label Switched Paths (LSPs) routing scheme ... [more ▼]

In the context of Multiprotocol Label Switching (MPLS), we propose an integration of a computationally efficient preemption mechanism into a very dynamic Label Switched Paths (LSPs) routing scheme described in a previous paper. This preemption scheme includes a quick heuristic able to select the most interesting LSPs to reroute from a link. The efficiency of this algorithm is obtained through a very rigid but seemingly appropriate policy concerning which LSPs are appropriate for preemption. A feedback from preemption on the routing process is proposed, in order to regulate the rate of the reroutings and to tune the balance between stability and continuous reorganization in a network. This integrated traffic engineering entity is tested on the accuracy of the heuristic, the relevance of the feedback and the whole integration, the influence of the routing policy on the preemption mechanism and the reliability of the managed network. [less ▲]

Row by row simulation of heat recovery steam generators : comparing different types of initialization as well as the LMTD and ε-NTU simulation method

Conference (2007, May)

We developed a model which makes it possible to simulate a boiler rows by row. This model as well uses the European approach of log mean temperature difference as the American approach of effectiveness ... [more ▼]

We developed a model which makes it possible to simulate a boiler rows by row. This model as well uses the European approach of log mean temperature difference as the American approach of effectiveness-number of transfer unit. These approaches are compared in term of results and speed of calculation. We also present the difficulties encountered and some means of circumventing them. Some cases of superheater are treated in order to illustrate our matter. [less ▲]

RS Cha, a spectroscopic binary system as a test of stellar physics modeling during the pre-main sequence phase

in SF2A-2005: Semaine de l'Astrophysique Francaise (2005, December 01)

New spectra of the PMS eclipsing binary RS Cha obtained with the GIRAFFE spectrograph at the SAAO, allowed us to measure the metallicity and new masses of both components of RS Cha. The system is ... [more ▼]

New spectra of the PMS eclipsing binary RS Cha obtained with the GIRAFFE spectrograph at the SAAO, allowed us to measure the metallicity and new masses of both components of RS Cha. The system is therefore observationally well constrained, and modelling both stars (both with masses around 1.8 M[SUB]o[/SUB]) at the same (young) age is a severe challenge for stellar evolutionary codes. We find no evidence that our models are deficient. However accurate detection of modes and measurements of periods of the recently discovered pulsations in both components are required to constrain more severely the physical description of PMS stellar models. [less ▲]

RSZ22, a dynamic nucleocytoplasmic shuttling SR splicing factor

Poster (2011, March)

Rt-Pcr-Elosa Tests On Pooled Sample Units For The Detection Of Virus Y In Potato Tubers

in Journal of Virological Methods (2001), 91(2), 99-108

RTDrift, modèle permettant d’évaluer en temps réel les risques environnementaux liés à la dérive des produits phytosanitaires

Conference (2011, October 17)

Un modèle, RTDrift, a été développé pour estimer la contamination causée par la dérive pour les pulvérisateurs à rampe en cours de traitement. Un pulvérisateur a été équipé de capteurs pour mesurer les ... [more ▼]

Un modèle, RTDrift, a été développé pour estimer la contamination causée par la dérive pour les pulvérisateurs à rampe en cours de traitement. Un pulvérisateur a été équipé de capteurs pour mesurer les paramètres de la dérive dont la pression de pulvérisation, les mouvements de rampe, la vitesse et direction du vent, la température et l’humidité ainsi que la géo-localisation. Pour chaque position successive des buses, un modèle de diffusionadvection gaussien avec sédimentation est utilisé pour calculer à partir de la buse le transport de chaque classe de gouttes déterminée préalablement par granulométrie laser en prenant en compte l’évaporation. Différents essais de terrain ont été réalisés où la dérive a été mesurée à différentes distances par fluorométrie sur collecteurs. La comparaison avec le modèle montre une estimation satisfaisante de la dérive sur base des mesures embarquées et offre le potentiel d’un estimateur de dérive en temps réel. Les pistes d’améliorations ultérieures sont évoquées. [less ▲]

RTL-TVi et Club RTL peuvent-ils être diffusés en Belgique sans l’autorisation du CSA belge ? Ou comment contourner une législation nationale grâce à la directive « Télévisions sans frontières ».

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2010)

TVi was fined to 500 000 € by the Belgian Media regulator for broadcasting RTL-TVi et Club-RTL in Belgium without authorization. Under Belgian law, this seems understandable but not so in connection with ... [more ▼]

TVi was fined to 500 000 € by the Belgian Media regulator for broadcasting RTL-TVi et Club-RTL in Belgium without authorization. Under Belgian law, this seems understandable but not so in connection with the directive "Television Without Borders". Indeed, this directive aims to ensure the free provision of broadcasting services within the internal market and provides for mutual recognition of authorizations delivered in other member states. In this case, Tvi had already obtained an authorization from the Luxemburg authorities. Therefore, the highest Belgian administrative court ruled that the requirement of a second authorization in Belgium impedes the freedom of reception and retransmission ensured in the European Union. [less ▲]