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See detailLaboratoire et allergologie : nouvelles applications
Gadisseur, Romy ULg; Cavalier, Etienne ULg

Conference (2010, February 04)

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See detailLaboratoire et allergologie : nouvelles applications
Gadisseur, Romy ULg; Cavalier, Etienne ULg

Conference (2010, March 02)

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See detailLaboratoire et allergologie : nouvelles applications
Gadisseur, Romy ULg; Cavalier, Etienne ULg

Conference (2009, December 17)

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See detailLaboratoire et allergologie : nouvelles applications
Gadisseur, Romy ULg; Cavalier, Etienne ULg

Conference (2009, December 11)

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See detailLes laboratoires accrédités saisis par l'incertitude
Feinberg, Max; Laurentie, M.; Hubert, Philippe ULg et al

Conference (2006)

Detailed reference viewed: 17 (3 ULg)
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See detailLes laboratoires de langues
de Landsheere, Gilbert ULg

in Education : tribune libre d'information et de discussion pédagogiques (1962), (78), 103-110

Detailed reference viewed: 17 (2 ULg)
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See detailLes laboratoires scientifiques amazoniens: Dynamique des relations entre acteurs scientifiques et locaux dans les aires protégés (Équateur)
Escobar Jimenez, Kelly ULg

Learning material (2012)

Le document présente la problématique, l’état des connaissances, la méthodologie, les outils théoriques, les résultats et certaines conclusions de la thèse intitulée: "QUAND LES LIMITES DES SCIENCES ET ... [more ▼]

Le document présente la problématique, l’état des connaissances, la méthodologie, les outils théoriques, les résultats et certaines conclusions de la thèse intitulée: "QUAND LES LIMITES DES SCIENCES ET LES SENTIERS DE CHASSE S’ENTRECROISENT: UNE ETHNOGRAPHIE DE LABORATOIRES SCIENTIFIQUES AMAZONIENS EN PARTENARIAT AVEC LES COMMUNAUTÉS LOCALES AUTOCHTONES" [less ▲]

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See detailThe laboratory - old and new tools to detect GBS
MELIN, Pierrette ULg

Conference (2014, June 05)

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See detailLaboratory and clinical assessment of a new sensitive immuno-radiometric assay for thyrotrophin in serum
El Allaf, M.; Chapelle, Jean-Paul ULg; Heusghem, C.

in Annals of Clinical Biochemistry (1987), (Suppl.2), 176

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See detailLaboratory and field preliminary tests of Metarhizium anisopliae formulated with neem oil (Suneem) against Anopheles gambiae sl adult emergence
Seye, Fawrou; NDIONE, Raymond; Touré, Mamour et al

Poster (2012, October 08)

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See detailLaboratory and field preliminary tests of Metarhizium anisopliae formulated with neem oil (Suneem) against Anopheles gambiae sl adult emergence
Seye, Fawrou; Ndione, Raymond; Touré, Mamour et al

Poster (2012, October 08)

Metarhizium anisopliae have shown great potential for the control of malaria vectors. However, their ability to control aquatic stages of anopheline vectors with conidial formulation is need. In ... [more ▼]

Metarhizium anisopliae have shown great potential for the control of malaria vectors. However, their ability to control aquatic stages of anopheline vectors with conidial formulation is need. In laboratory condition (25°C and 76%RH), we formulated M. anisopliae with emulsifian neem oil (Suneem 1%) before application on An. gambiae larvae at 4, 6, 8, 10 and 12 % (v/v) to determine the LD90. We applied in semi-field environment, the LD90 of the formulation into artificial vats on the Anopheles gambiae sl larvae collected from many breeding sites at dry and rain seasons. In laboratory condition, the LD 50 was 4.4 x 10^6 spores/ml and the LD90 was not obtained 24 after exposure. The probite line equation was Y=1.61 x – 0.55 and R²= 0.9793. The LD 50 was 3.1 x 10^6 and the LD90 was 5.3 X 10^6 spores/ml 48 h after exposure. The probite line equation was then Y= 1.69 x + 1.79 and R²= 0.9757. Microscope magnifying revealed also the fungal attack via cuticle and mycelia germination one dead larvae and pupae. In semi-field environment, treatment revealed that, at 5.3 x 10^6 spores/ml, the formulation has a great emergence inhibition of mosquito adult formation. No significant difference was observed between dry and rain season application of M. anisopliae on the larvae. Therefore, a combination of M. anisopliae with Suneem may provide a more sustainable management strategy for malaria vectors control at the larval stages. [less ▲]

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See detailLaboratory and in situ grazing rates of freshwater rotifers and their contribution to community grazing rates
Gosselain, V.; Joaquim-Justo, Célia ULg; Viroux, L. et al

in Archiv für Hydrobiologie. Supplementband, Large rivers (1996), 13(1-4), 353-361

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See detailLaboratory and semi-field environment tests for the control efficacy of Metarhizium anisopliae formulated with neem oil (suneem) against Anopheles gambiae s.l. adult emergence
Seye, Fawrou; Ndione, Raymond Demba; Touré, Mamour et al

in Academia Journal of Biotechnology (2013), 1(3), 46-52

Metarhizium anisopliae was evaluated previously in Suneem formulation against malaria vector adults. However, their ability to control aquatic stages is not yet evaluated. In laboratory conditions: the ... [more ▼]

Metarhizium anisopliae was evaluated previously in Suneem formulation against malaria vector adults. However, their ability to control aquatic stages is not yet evaluated. In laboratory conditions: the lethal dose (LD90) of the formulation was determined on Anopheles gambiae larvae collected from breeding sites and evaluated into artificial vats at dry and rainy seasons. In laboratory conditions, the LD90 was 5.3 × 106 spores/ml in 48 h. In semi-field environment, the formulation had a great emergence inhibition of mosquito adult (P < 0.0001). The emergences rate at day 8 were 2.25 ± 0.03, 28.00 ± 1.07 and 97.25 ± 1.56 % in dry season for the oil formulation (OF), Suneem (S), and water control respectively. In rainy season, the emergences were 1.25 ± 0.15, 30.25 ± 1.23 and 98 ± 0.76 % respectively. No significant difference was observed between dry and rainy seasons (P=0.3). Therefore, M. anisopliae formulated with Suneem may provide a more sustainable management strategy for malaria vectors control at larval stages. [less ▲]

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See detailLaboratory challenges in primary aldosteronism screening and diagnosis
Rehan, Muhammad; Raizman, Joshua; CAVALIER, Etienne ULg et al

in Clinical Biochemistry (2015), 48(6), 377-387

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See detailLaboratory demonstration of a mid-infrared AGPM vector vortex coronagraph
Delacroix, Christian ULg; Absil, Olivier ULg; Forsberg, Pontus et al

in Astronomy and Astrophysics (2013), 553

Coronagraphy is a powerful technique to achieve high contrast imaging and hence to image faint companions around bright targets. Various concepts have been used in the visible and near-infrared regimes ... [more ▼]

Coronagraphy is a powerful technique to achieve high contrast imaging and hence to image faint companions around bright targets. Various concepts have been used in the visible and near-infrared regimes, while coronagraphic applications in the mid-infrared remain nowadays largely unexplored. Vector vortex phase masks based on concentric subwavelength gratings show great promise for such applications. We aim at producing and validating the first high-performance broadband focal plane phase mask coronagraphs for applications in the mid-infrared regime, and in particular the L band with a fractional bandwidth of ~16% (3.5-4.1 \mu m). Based on rigorous coupled wave analysis, we designed an annular groove phase mask (AGPM) producing a vortex effect in the L band, and etched it onto a series of diamond substrates. The grating parameters were measured by means of scanning electron microscopy. The resulting components were then tested on a mid-infrared coronagraphic test bench. A broadband raw null depth of 2 x 10^{-3} was obtained for our best L-band AGPM after only a few iterations between design and manufacturing. This corresponds to a raw contrast of about 6 x 10^{-5} (10.5 mag) at 2\lambda/D. This result is fully in line with our projections based on rigorous coupled wave analysis modeling, using the measured grating parameters. The sensitivity to tilt and focus has also been evaluated. After years of technological developments, mid-infrared vector vortex coronagraphs finally become a reality and live up to our expectations. Based on their measured performance, our L-band AGPMs are now ready to open a new parameter space in exoplanet imaging at major ground-based observatories. [less ▲]

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See detailLaboratory Diagnosis of Neonatal Bacterial Infections
Melin, Pierrette ULg

Conference (1997, December 11)

Detailed reference viewed: 17 (1 ULg)