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See detailOptimization of external poly base sheet resistance in 0.13 µm quasi self-aligned SiGe:C HBTs
You, Suzhen; Van Huylenbroeck, Stefaan; Nguyen, Ngoc Duy ULg et al

in Thin Solid Films (2009), 518(6), 68

This paper investigates the optimization of the external polysilicon base sheet resistance of quasi self-aligned (QSA) SiGe:C HBTs from a 0.13 μm BiCMOS process. Taking advantage of optimized implant ... [more ▼]

This paper investigates the optimization of the external polysilicon base sheet resistance of quasi self-aligned (QSA) SiGe:C HBTs from a 0.13 μm BiCMOS process. Taking advantage of optimized implant conditions to improve the doping of the external base poly, and using an optimized non-selective epitaxy process with improved growth rate ratio of 1.7 between the polycrystalline silicon and monocrystalline silicon of the base, the maximum oscillation frequency fmax reaches 300 GHz. [less ▲]

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See detailEcologie et distribution des espèces de Culicoides Latreille 1809 (Diptera : Ceratopogonidae) à proximité d’une exploitation bovine en Belgique
Zimmer, Jean-Yves ULg; Losson, Bertrand ULg; Saegerman, Claude ULg et al

in Annales de la Société Entomologique de France (2009), 45(3), 393-400

Bluetongue is a non-contagious disease that affects domestic and wild ruminants. Since its spreading to Northern Europe in 2006, this viral epizooty caused considerable economical losses on the ovine and ... [more ▼]

Bluetongue is a non-contagious disease that affects domestic and wild ruminants. Since its spreading to Northern Europe in 2006, this viral epizooty caused considerable economical losses on the ovine and bovine livestock. The biological vectors of the bluetongue virus (BTV) are biting midges belonging to the genus Culicoides. Many elements still remain unknown about their biology, physiology, ecology and distribution. This study shows that these biting midges are much more abundant on farm level than in the nearby meadows; these last ones nevertheless present a much more specifi c diversity. So possibility of migration between the meadow and the farm is voiced for the C. chiopterus and C. dewulfi species. Females are much more represented than males for the farm and the meadow alike. The physiology observation of these ones is realized throughout the study. [less ▲]

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See detailGynaecological uses of a new class of steroids: the selective progesterone receptor modulators
Pintiaux, Axelle ULg; Chabbert-Buffet, N.; Foidart, Jean-Michel ULg

in Gynecological Endocrinology : The Official Journal of the International Society of Gynecological Endocrinology (2009), 25(2), 67-73

Selective progesterone receptor modulators (SPRM) represent a new class of synthetic steroids, which can interact with the progesterone receptor (PR) and can exert agonist, antagonist or mixed effects on ... [more ▼]

Selective progesterone receptor modulators (SPRM) represent a new class of synthetic steroids, which can interact with the progesterone receptor (PR) and can exert agonist, antagonist or mixed effects on various progesterone target tissues in vivo. This review evaluates the actual and potential usefulness of SPRMs in gynaecology [less ▲]

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See detailQuel avenir pour les essais de prevention cardiovasculaire?
Scheen, André ULg

in Revue Médicale Suisse (2009), 5(214), 1635-6

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See detailComent j'explore...- les pertes de sang d'origine vaginale dans l'enfance
Pelletier, R.; Foidart, Jean-Michel ULg; Nisolle, Michelle ULg

in Revue Médicale de Liège (2009), 64(4), 219-22

Le saignement vaginal prépubertaire est considéré comme une ménarche isolée lorsque, en l’absence de toute anomalie mise en évidence par les examens médicaux (corps étranger, tumeur, infection…), il n’y ... [more ▼]

Le saignement vaginal prépubertaire est considéré comme une ménarche isolée lorsque, en l’absence de toute anomalie mise en évidence par les examens médicaux (corps étranger, tumeur, infection…), il n’y pas de développement d’un autre caractère sexuel secondaire. Si d’autres signes pubertaires (thélarche, pubarche, pic de croissance, …) se développent, le saignement vaginal ne sera plus isolé et nous parlerons dès lors de puberté précoce vraie. C’est donc le suivi de la patiente qui nous permettra de faire le diagnostic différentiel entre ménarche précoce isolée bénigne et puberté précoce vraie engageant le pronostic statural et nécessitant une prise en charge spécifique. L’étiologie de la ménarche isolée reste indéterminée et des études complémentaires sont nécessaires. Plusieurs examens complémentaires doivent être réalisés afin d’exclure des pathologies tumorales, infectieuses, traumatiques ou encore hormonales et ceux-ci doivent être répétés lors du suivi de la patiente. [less ▲]

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See detailFondamenti di un approccio Europeo all'impresa sociale
Defourny, Jacques ULg; Mertens de Wilmars, Sybille ULg

in Laville, Jean-Louis; La Rosa, Michele (Eds.) Impresa sociale e capitalismo contemporaneo (2009)

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See detailConcurrence difficile
Petit, Nicolas ULg

Article for general public (2009)

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See detailL'adaptation de la Stratégie européenne de sécurité. Le Livre blanc sur la sécurité et le nouveau Concept stratégique de l'OTAN : un recadrage des postures. Interactions, calendriers, ruptures
Dumoulin, André ULg

in Annuaire français de relations internationales 2009 (2009)

L’adaptation de la Stratégie européenne de sécurité fin 2008, les propositions en vue de la rédaction d’un Livre blanc européen de la sécurité et de la défense et les premières réflexions autour d’un ... [more ▼]

L’adaptation de la Stratégie européenne de sécurité fin 2008, les propositions en vue de la rédaction d’un Livre blanc européen de la sécurité et de la défense et les premières réflexions autour d’un nouveau Concept stratégique de l’OTAN provoquent maintes interrogations. Le recadrage des postures et les interactions dans les calendriers complexifient le jeu d’écritures diplomatiques. La nouvelle administration américaine, la nouvelle politique française vis-à-vis de l’OTAN et les grands défis de la PESD imposent nuance politique et nouveaux objectifs. [less ▲]

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See detailBelgian Social Protection Portrait
Atta, C.; Pestieau, Pierre ULg; Perelman, Sergio ULg

Report (2009)

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See detailDam-break flow numerical modeling considering structural impacts on buildings
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

in Proc. 33rd IAHR Congress: Water Engineering for a Sustainable Environment (2009)

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See detailThe secretions of oviduct epithelial cells increase the equine in vitro fertilization rate: are osteopontin, atrial natriuretic peptide A and oviductin involved?
Mugnier, S.; Kervella, M.; Douet, C. et al

in Reproductive biology and endocrinology (2009), 7(1), 129

ABSTRACT: BACKGROUND: Oviduct epithelial cells (OEC) co-culture promotes in vitro fertilization (IVF) in human, bovine and porcine species, but no data are available from equine species. Yet, despite ... [more ▼]

ABSTRACT: BACKGROUND: Oviduct epithelial cells (OEC) co-culture promotes in vitro fertilization (IVF) in human, bovine and porcine species, but no data are available from equine species. Yet, despite numerous attempts, equine IVF rates remain low. Our first aim was to verify a beneficial effect of the OEC on equine IVF. In mammals, oviductal proteins have been shown to interact with gametes and play a role in fertilization. Thus, our second aim was to identify the proteins involved in fertilization in the horse. Methods & results In the first experiment, we co-incubated fresh equine spermatozoa treated with calcium ionophore and in vitro matured equine oocytes with or without porcine OEC. We showed that the presence of OEC increases the IVF rates. In the subsequent experiments, we co-incubated equine gametes with OEC and we showed that the IVF rates were not significantly different between 1) gametes co-incubated with equine vs porcine OEC, 2) intact cumulus-oocyte complexes vs denuded oocytes, 3) OEC previously stimulated with human Chorionic Gonadotropin, Luteinizing Hormone and/or oestradiol vs non stimulated OEC, 4) in vivo vs in vitro matured oocytes. In order to identify the proteins responsible for the positive effect of OEC, we first searched for the presence of the genes encoding oviductin, osteopontin and atrial natriuretic peptide A (ANP A) in the equine genome. We showed that the genes coding for osteopontin and ANP A are present. But the one for oviductin either has become a pseudogene during evolution of horse genome or has been not well annotated in horse genome sequence. We then showed that osteopontin and ANP A proteins are present in the equine oviduct using a surface plasmon resonance biosensor, and we analyzed their expression during oestrus cycle by Western blot. Finally, we co-incubated equine gametes with or without purified osteopontin or synthesized ANP A. No significant effect of osteopontin or ANP A was observed, though osteopontin slightly increased the IVF rates. CONCLUSION: Our study shows a beneficial effect of homologous and heterologous oviduct cells on equine IVF rates, though the rates remain low. Furthers studies are necessary to identify the proteins involved. We showed that the surface plasmon resonance technique is efficient and powerful to analyze molecular interactions during fertilization. [less ▲]

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See detailYlang-ylang (Cananga odorata (Lam.) Hook. & Thoms. var. genuina) essential oils from Comoros Islands: characterization and variability
Benini, Céline ULg; Wathelet, Jean-Paul ULg; du Jardin, Patrick ULg et al

Poster (2009)

The Union of the Comoros is the world’s biggest producer of ylang-ylang essential oils. Comorian ylang-ylang also provides the most valuable essential oil that can be found on international market. This ... [more ▼]

The Union of the Comoros is the world’s biggest producer of ylang-ylang essential oils. Comorian ylang-ylang also provides the most valuable essential oil that can be found on international market. This product represents a high percentage of Comoros’ annual currency. Ylang-ylang essential oil is obtained by fractionned hydrodistillation or steam distillation of Cananga odorata fresh flowers. This oil is commercialized in five different quality grades (extra S; extra; I; II; III) which possess their own physicochemical properties. [less ▲]

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See detailDevelopment of a strategy to study toxicodynamic of pollutants in spawning sea turtles
Dyc, Christelle ULg; Bouquegneau, Jean-Marie ULg; Gillet, Marie-Claire ULg et al

in Proceedings of the 29th Annual Symposium on Sea Turtle Biology and Conservation (2009)

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See detailWho's in charge? Nuclear receptor coactivator function in brain and behavior
Charlier, Thierry ULg

Scientific conference (2009)

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See detailThe post-harvest quality of bananas is determined by pre-harvest factors
de Lapeyre de Bellaire, Luc; Chillet, Marc; Lassois, Ludivine ULg et al

Poster (2009)

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See detailThe in-vitro antimicrobial activity of some medicinal plants against beta-lactam-resistant bacteria
Gangoue Pieboji, Joseph ULg; Eze, N.; Ngongang Djintchui, A. et al

in J Infect Dev Ctries (2009), 3(9), 671-80

BACKGROUND: In effort to identify novel bacterial agents, this study was initiated to evaluate the antimicrobial properties of 17 crude extracts from 12 medicinal plants against beta-lactam-resistant ... [more ▼]

BACKGROUND: In effort to identify novel bacterial agents, this study was initiated to evaluate the antimicrobial properties of 17 crude extracts from 12 medicinal plants against beta-lactam-resistant bacteria. METHODOLOGY: The antimicrobial activities of plant extracts were evaluated against clinically proved beta-lactam-resistant bacteria (Klebsiella pneumoniae, Klebsiella oxytoca, Enterobacter cloacae, Serratia marcescens, Acinetobacter baumannii, Staphylococcus aureus and Enterococcus sp.) and reference strains of bacteria (Escherichia coli ATCC 35218, Enterobacter aerogenes ATCC 29751, E. aerogenes ATCC 13048, Pseudomonas aeruginosa ATCC 27853 and Enterococcus hirae ATCC 9790) by using disc-diffusion and agar-dilution assays. RESULTS: The crude plant extracts demonstrated broad spectrum activity against all bacteria tested with inhibition zones in the range of 8-30 mm. The minimal inhibitory concentration (MIC) values of different plant extracts against the tested bacteria were found to range from <or= 0.3 to >or= 10 mg ml(-1). The most active plant extracts were from Dortenia picta and Bridelia micrantha (MIC: 1.25-10 mg ml(-1)) on beta-lactam-resistant Gram-negative bacilli and the extracts from B. micrantha, Mallotus oppositifolius, Garcinia lucida, Garcinia. kola, Campylospermum densiflorum (leaves) and C. zenkeri (root) on beta-lactam-resistant Gram-positive cocci (MIC: <or= 0.3-5 mg ml(-1)). CONCLUSION: Of the 17 plant extracts studied, seven showed good antimicrobial activity against the tested bacteria. The stem bark of B. micrantha and the leaves of D. picta were most active towards beta-lactamase producing Gram-negative bacilli. This study shows that medicinal plants could be sources of compounds which can be used to fight against beta-lactam resistant bacteria. [less ▲]

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See detailSmall Scale Solar ORC system for distributed power
Orosz, Matthew; Mueller, Amy; Quoilin, Sylvain ULg et al

(2009)

A solar thermal organic Rankine cycle (ORC) can provide affordable energy supplies in remote regions. The advent of low-cost medium temperature parabolic trough collectors and ORC technology taking ... [more ▼]

A solar thermal organic Rankine cycle (ORC) can provide affordable energy supplies in remote regions. The advent of low-cost medium temperature parabolic trough collectors and ORC technology taking advantage of mass produced fluid machinery from HVAC industries are enabling developments for the production of small scale autonomous power generation units. Construction and testing of this type of system is discussed, including benchmarking of scrolls expanders (up to 75% isentropic effieiency) and the field testing of solar collectors (50% thermal efficiency at 150°C operating temperatures) with a nominal cost of $80 m-2. These results have led to the construction of a full-scale 3kW solar ORC power system designed to support a rural health clinic in Lesotho in southern Africa. [less ▲]

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See detailPathologies sociales de la communication
Durand, Pascal ULg

in Questions de Communication (2009), 15

De la communication, souligner non les vertus, mais les vices ; examiner, au titre de ses pathologies - et plus spécialement de ses pathologies sociales -, non les biais dont elle peut faire l'objet, mais ... [more ▼]

De la communication, souligner non les vertus, mais les vices ; examiner, au titre de ses pathologies - et plus spécialement de ses pathologies sociales -, non les biais dont elle peut faire l'objet, mais ceux à la source desquels il arrive qu'elle se trouve ; l'envisager, non comme facteur de prévention ou de résorption de ces pathologies, mais plutôt comme leur éventuel vecteur d'aggravation circulaire, voilà comment pourrait être résumé à grands traits le propos du dossier ouvert dans la présente livraison de Questions de communication. Programme exorbitant : quelques articles réunis pour la cause ne sauraient épuiser ni même baliser avec précision une problématique pouvant aller, de façon très reçue, des phénomènes d'addiction électronique et des syndromes de déréalisation ou d'isolement induits par les technologies du virtuel aux dispositifs de propagande et autres techniques de lissage des différends politiques ou sociaux. Programme qui n'en paraîtra pas moins incongru au regard des conceptions enchantées de la communication et de la doxa qui l'institue non seulement en principe actif de la vie sociale en général, mais encore en ressource de première nécessité et en valeur indiscutable. [less ▲]

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See detailLes sartans, une arme de choix dans le traitement de l'hypertension artérielle (6)
Krzesinski, Jean-Marie ULg

in Journal de Cardiologie [= JDC] = Tijdschrift voor Cardiologie [= TVC] (2009), 319

Le Pr Jean-Marie Krzesinski (Ulg) souligne que la situation en matière d'hypertension artérielle dans notre pays ne s'est pas tellement améliorée ces dernières années.

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See detailMinéralogie de l’ancienne mine de plomb de La Roche-en-Ardenne (Belgique).
Blondieau, Michel; Hatert, Frédéric ULg

in Le règne minéral (2009), 88

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