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See detailFollicular status and embryo production in Ouled Djellal (Algeria) ewes breed pretreated with a GnRH agonist
Gharbi, I; Ferrouk, M; Dechicha, A et al

in Asian Journal of Animal and Veterinary Advances (2012), 7(2), 117-127

Variability in ovulation rate and number of embryos in response to superovulation is the main limiting factor in small ruminants transfer programs. The objective of this study was to evaluate the ovarian ... [more ▼]

Variability in ovulation rate and number of embryos in response to superovulation is the main limiting factor in small ruminants transfer programs. The objective of this study was to evaluate the ovarian follicular status and in vivo embryo production in Ouled djellal ewes following a pre-treatment with a Gonadotropin Releasing Hormone (GnRH) agonist. Twenty (n = 20) cycling ewes were allotted into two groups, the first (n = 10) received subcutaneously a daily injection of 40 micrograms buserelin for 14 days prior to superovulatory treatment (pretreated group) while the second group (n = 10) did not receive GnRH agonist before superovulatory treatment (control group). Before batching, the ovarian follicular population was assessed by laparoscopy numbering of the ovarian follicles. In the pretreated ewes, a significant increase in small follicles (8.50±1.64 vs. 15.50±2.74, p<0.01) and a suppression of large follicles (≥4 mm) (4, 3±0.76 vs. 0.0, p<0.001) was observed after treatment with Buserelin. In addition to the pretreated group, the number of small follicles prior to porcine Follicle-Stimulating Hormone (pFSH) treatment was higher and the number of large follicles smaller than the control group. The ovulatory response and the number of transferable embryos per ewe treated was significantly higher in ewes pretreated than in control ewes (ovulatory response: 17,8±1,56 vs. 9,1±1,11; p<0.001) (transferable embryos: 10.2±1.87 vs. 4.1±0.40, p≤0.01). Compared to the pretreated group a higher percentage of degenerated embryos was recorded in the control group (control: 20.40 vs. 7.27 pretreated, p<0.05). The pre-treatment with a GnRHa to the superovulation protocol improve embryo production in Ouled Djellal ewes, in allowing the terminal follicular growth inhibition and increasing of small follicles number at the start of p FSH treatment. [less ▲]

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See detailFolliculogenèse et transplantation embryonnaire chez les ruminants
Beckers, Jean-François ULg

in Bulletin et Mémoires de l'Académie Royale de Médecine de Belgique (1989), 144(12), 607-620

In ruminant embryo transfer development, the limiting step remains the superovulation of the donor: using both PMSG and pituitary extracts, the superovulatory response is variable. In our research unit ... [more ▼]

In ruminant embryo transfer development, the limiting step remains the superovulation of the donor: using both PMSG and pituitary extracts, the superovulatory response is variable. In our research unit, FSH and LH were purified until homogeneity. Superovulatory treatment includes the administration of pure FSH the day following the preovulatory LH pulse and an administration of an LH/FSH mixture in the middle cycle. This biphasic of folliculogenesis allows superovulatroy response with more and higher embryos. [less ▲]

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See detailFollow the bouncing ball: global results on tracking and state estimation with impacts
Forni, Fulvio ULg; Teel, Andrew; Zaccarian, Luca

in IEEE Transactions on Automatic Control (2013)

In this paper we formulate tracking and state- estimation problems of a translating mass in a polyhedral billiard as a stabilization problem for a suitable set. Due to the discontinuous trajectories ... [more ▼]

In this paper we formulate tracking and state- estimation problems of a translating mass in a polyhedral billiard as a stabilization problem for a suitable set. Due to the discontinuous trajectories arising from the impacts, we use hybrid systems stability analysis tools to establish the results. Using a novel concept of mirrored images of the target mass we prove that 1) a tracking control algorithm, and 2) an observer algorithm guarantee global exponential stability results for specific classes of polyhedral billiards, including rectangles. Moreover, we combine these two algorithms within dynamic controllers that guarantee global output feedback tracking. The results are illustrated via simulations. [less ▲]

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See detailFollow-up de 190 nouveau-nés а risque : résultats préliminaires
Battisti, Oreste ULg; Adant-François, A.; Bertrand, J. M. et al

Conference (1992)

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See detailFollow-up of Coll2-1, Coll2-1 NO2 and myeloperoxidase in dog after transection of the cruciate ligament of the knee
Henrotin, Yves ULg; Pelletier, JP; Martel-Pelletier, J et al

in Arthritis and Rheumatism (2008), 58(Suppl 9), 652

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See detailFollow-up of Coll2-1, Coll2-1 NO2 and myeloperoxidase in dog after transection of the cruciate ligament of the knee
Henrotin, Yves ULg; Pelletier, JP; Martel-Pelletier, J et al

in Annals of the Rheumatic Diseases (2008), 67(Suppl.2), 593

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See detailFollow-up of Coll2-1, Coll2-1 NO2 and myeloperoxidase in dog after transection of the cruciate ligament of the knee
Henrotin, Yves ULg; Pelletier, JP; Martel-Pelletier, J et al

in Osteoarthritis and Cartilage (2008), 16(Suppl 4), 51

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See detailFollow-up of COLL2-1, COLL2-1NO2 and myeloperoxidase serum levels in marathon runners
Deberg, Michelle ULg; Labasse, Alain ULg; Sanchez, Christelle ULg et al

in Osteoarthritis and Cartilage (2007), 15(Suppl C), 67

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See detailFollow-up of Coll2-1, Coll2-1NO2 and myeloperoxydase in dogs after transaction of the cruciate ligament of the knee
Henrotin, Yves ULg; Pelletier, P.; Martel-Pelletier, J. et al

in Osteoarthritis and Cartilage (2008)

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See detailFollow-up of COLL2-1, COLL2-1NO2 and myeloperoxydase in dogs after transection of the cruciate ligament of the knee
Kesteloot, Frédéric ULg; Pelletier, Jean-Pierre; Martel-Pelletier, Johanne et al

Poster (2009, May 23)

Purpose: To determine the profile of Coll2-1, Coll2-1NO2 and myeloperoxydase (MPO) serum concentrations in experimental knee OA induced in the dog by transection of the anterior cruciate ligament. Methods ... [more ▼]

Purpose: To determine the profile of Coll2-1, Coll2-1NO2 and myeloperoxydase (MPO) serum concentrations in experimental knee OA induced in the dog by transection of the anterior cruciate ligament. Methods: Surgical transection of the ACL of the right knee was performed on 16 adult crossbred dogs. The dogs were sacrificed 8 weeks after the surgical procedure. Coll2-1, Coll2-1NO2 and MPO were measured by specific immunoassays in 16 dogs at baseline and every 2 weeks during the 8 weeks. The results were expressed as median (range). Results: Immunostainings with D3 and D37, the antiserum recognizing Coll2-1 and Coll2-1NO2, respectively, labelled extracellular matrix in the superficial layer of fibrillated cartilage. After the transection of the ACL, the concentration of 3 biomarkers increased significantly (Friedman test: p<0.001). The concentrations of Coll2-1 and MPO were significantly increased at week 2 compared to baseline [Coll2-1 baseline: 281.57 (131.02-384.67) nM vs Coll2-1 week 2: 345.52 (181.15-589.25) nM (p<0.01) and MPO baseline: 5.16 (<0.4-14.7) ng/ml vs MPO week 2: 14.54 (3.28-31.50) ng/ml (p<0.001)] and remained stable until week 8 [Coll2-1 week 8:318.89 (117.95-492.28) nM and MPO week 8: 11.55 (2.87-42.94) ng/ml]. The Coll2-1NO2 concentration increased significantly at weeks 6 and 8 compared to baseline [Coll2-1NO2 baseline: 0.54 (0.29-1.48) nM vs Coll2-1NO2 week 6: 0.64 (0.40-1.9) nM (p<0.001) vs week 8: 0.61 (0.37-1.79) nM]. Conclusions: These findings suggest that Coll2-1 is a relevant marker for the detection of early structural changes in OA dogs. Interestingly, MPO and Coll2-1NO2 are increased in OA dogs indicating that an oxidative stress occurs in this OA model. [less ▲]

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See detailThe follow-up of financial value creation indicators to prevent bankruptcies in Belgian SMEs : an empirical multivariate approach
Van Caillie, Didier ULg; Arnould, Sophie ULg

in Babson College Conference (Ed.) Acts of the 2001 Babson College Conference (2001, June)

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See detailFollow-up of iron microalbuminuria in hypertensive patients: a belgian promise survey
Bovy, Christophe ULg; Beguin, Yves ULg; Gothot, André ULg et al

in Acta Clinica Belgica (2003), 58-3(4), 328

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See detailFollow-up on EUCAST
MELIN, Pierrette ULg

Conference (2008, November 06)

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See detailFollowing up on patients with osteoporosis
Reginster, Jean-Yves ULg

in BONE (2005), 36(S2), 474-5

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See detailFolville, Juliette
Pirenne, Christophe ULg

in Finscher, Ludwig (Ed.) Die Musik in Geschichte und Gegenwart (2002)

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See detailThe Fomalhaut debris disk seen from every angle with interferometry
Absil, Olivier ULg; Mennesson, B.; Le Bouquin, J.-B. et al

in Danchi, W. C.; Delplancke, F.; Rajagopal, J. K. (Eds.) Optical and Infrared Interferometry II (2010, July)

In this paper, we present the results of three different studies of the Fomalhaut debris disk with infrared interferometry. First, VLTI/AMBER measurements are used to determine the position angle of the ... [more ▼]

In this paper, we present the results of three different studies of the Fomalhaut debris disk with infrared interferometry. First, VLTI/AMBER measurements are used to determine the position angle of the slightly oblate rapidly rotating photosphere by means of differential phase measurements across the Br-gamma photospheric line. This measurement allows us to confirm that the debris disk is located in the equatorial plane of its host star. Second, we use VLTI/VINCI to search for resolved near-infrared emission around the stellar photosphere, which would correspond to the presence of large amounts of hot dust grains located between the sublimation radius and the habitable zone. Our observations reveal a small excess of 0.88%+/-0.12% in K band relative to the photospheric flux. Finally, we use the Keck Interferometer Nuller in order to derive additional constraints on the nature of the resolved infrared emission. Our observations suggest a marginal detection of a circumstellar excess at 10 μm, which we use together with the VINCI detection to model the circumstellar emission. Preliminary results from this modeling effort are discussed. [less ▲]

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