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See detailUne meilleure connaissance scientifique des psychotropes permet-elle un meilleur usage éthique en pédopsychiatrie
Scholl, Jean-Marc ULg

Conference given outside the academic context (2008)

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See detailMeiofauna and harpacticoid copepods in different habitats of a Mediterranean seagrass meadow
Mascart, Thibaud ULg; Lepoint, Gilles ULg; De Troch, Marleen

in Journal of the Marine Biological Association of the United Kingdom (2013), 93(06), 1557-1566

This study investigated whether associated meiobenthic communities, especially harpacticoid copepods differed, amongst habitats. Five pre-defined habitats within and next to the Posidonia oceanica ... [more ▼]

This study investigated whether associated meiobenthic communities, especially harpacticoid copepods differed, amongst habitats. Five pre-defined habitats within and next to the Posidonia oceanica seagrass meadow were sampled: living seagrass canopy leaves (LL), small (SMF) and large (LMF) macrophytodetritus fragments accumulations and sand, bare (BS) and covered (CS). The highest meiofauna abundances were recorded in the BS for the core sampled habitats (BS, CS, SMF and LMF) and in the LMF for seagrass material habitats (SMF, LMF and LL). Harpacticoid copepods were the most abundant taxon in all habitats. The assemblage composition at copepod family level showed two distinct habitats clusters: a leaf (LMF and LL) and a sediment cluster (BS, CS and SMF). Subsequently, stable isotope analyses were conducted to analyse the relationship between copepods and their potential food sources in seagrass material habitats. Based on δ13C isotopic analyses and SIAR mixing model, harpacticoid copepods relied for 70% on epiphytes and for 30% on P. oceanica leaf material in the LMF and LL habitats. [less ▲]

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See detailLa méiose chez la femelle de mammifère
Ectors, Fabien ULg; Koulischer, Lucien

in Popescu, Paul; Hayes, Hélène; Dutrillaux, Bernard (Eds.) Techniques de cytogénétique animale (1998)

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See detailMeiotic Analysis of the Germplasm of three Medicinal Species from the Asteraceae Family
Olkoski, D; Laughinghouse IV, Haywood ULg; Silva, ACF et al

in Ciencia Rural (2008), 38(6), 1777-1780

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See detailMeiotic segregation analysis in cow heterozygotes for the t(1;29) Robertsonian translocation
Bonnet-Garnier, A; Lacaze, S; Beckers, Jean-François ULg et al

in Chromosome Research : An International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology (2007), 15(2), 87

Heterozygotes for Robertsonian translocations have usually a normal phenotype but show variable decrease in fertility. In humans, meiotic segregation studies carried out in male carriers reveal a majority ... [more ▼]

Heterozygotes for Robertsonian translocations have usually a normal phenotype but show variable decrease in fertility. In humans, meiotic segregation studies carried out in male carriers reveal a majority of balanced spermatozoa. The rate of unbalanced segregation products appears higher in females than in males, but the number of human oocytes analysed so far remains limited (about 100). The occurrence of the t(1;29) translocation in several cattle breeds makes bovines an interesting animal model to study the meiotic segregation in female carrier of Robertsonian translocations. The aim of our project is thus to assess the rates of unbalanced oocytes produced by four cows and to compare these values with those obtained in bulls carriers of the same translocation. The superstimulated cows were subjected to twenty um pick up (OPU) sessions. Dual colour whole chromosome painting probes for BTA1 and 29 were hybridized on oocytes preparations. To date, 649 oocytes have been matured in vitro and 500 successfully spread. Among the 266 oocytes analysed by FISH so far: 201 (75,5%) are balanced, including 105 translocated and 96 normal, 55 are diploid (20.7%), and 10 unbalanced (3.8%). The proportion of balanced oocytes is lower than the average proportion of balanced spermatozoa estimated for two heterozygous bulls (97.1%). This difference is essentially due to a higher rate of diploid oocytes (20.7% vs 0.04% diploid spermatozoa). The origin of observed differences in the segregation profiles of the two sexes, as well as the practical implications of these results for genetic counselling and cattle breeding are discussed. [less ▲]

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See detailMeiotic segregation analysis in cows carrying the t(1;29) Robertsonian translocation.
Bonnet-Garnier, A; Lacaze, S; Beckers, Jean-François ULg et al

in Cytogenetic & Genome Research (2008), 120

Heterozygous carriers of Robertsonian translocations generally have a normal phenotype but present reproductive failure. In cattle, the t(1;29) Robertsonian translocation is very common and carriers show ... [more ▼]

Heterozygous carriers of Robertsonian translocations generally have a normal phenotype but present reproductive failure. In cattle, the t(1;29) Robertsonian translocation is very common and carriers show a 3-5% decrease in fertility. Some data suggest that female carriers have a higher decrease than male carriers but no direct studies of the chromosome content of oocytes from a t(1;29) carrier cow have been performed so far. Four heterozygous carrier cows underwent hormonal stimulations and follicles punctions and about 800 oocytes were matured in vitro. Six hundred metaphase II preparations were obtained and analysed by fluorescent in situ hybridization with bovine chromosome 1 and 29 painting probes. Proportions of different kinds of oocytes were assessed: 74.11% (292/394) were normal and balanced, 4.06% (16/394) unbalanced and 21.83% (86/394) diploid. For all cows, the number of normal oocytes was not significantly different from the number of translocated oocytes but the diploidy and unbalanced rate were significantly different between them. As found in bulls, the meiotic segregation pattern in cows has shown a preponderance of alternate products. However, the frequency of unbalanced gametes determined in females (4.06%) was significantly higher than the frequency observed in males (2.76%). The divergence in the rate of diploid gametes (0.04% vs. 21.83%) is mainly explained by the difference between males and females. [less ▲]

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See detailHet meisje dat ik Ursula noem. Paul van Ostaijens 'Jong landschap' re-revisited
Spinoy, Erik ULg

in Kunst & Cultuur (1996), 29(2), 16-20

This is a rereading of a famous late poem by the Flemish expressionist Paul van Ostaijen.

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See detailDe meisje heeft de boek niet gelezen, maar wel het krant. Genus in het Nederlands van anderstaligen
Rasier, Laurent ULg; Hiligsmann, Philippe

Conference (2009)

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See detailMélancolie et dépression : étude phénoménologique
Ramackers, Amélia; Englebert, Jérôme ULg

Poster (2014, October 17)

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See detailLe mélange diphénylborate d'aminoéthanol-PEG 400: Un intéressant réactif de révélation des flavonoïdes
Brasseur, Thierry; Angenot, Luc ULg

in Journal of Chromatography (1986), 351

NP/PEG reagent is very useful for the chromatographic identification of various classes of flavonoids.

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See detailLe mélange épicéa-douglas, une association intéressante pour le sylviculteur ? 1ère partie
Colson, Vincent ULg; Claessens, Hugues ULg; Pauwels, D. et al

in Silva Belgica (2002), 109(3), 34-38

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See detailLe mélange épicéa-douglas, une association intéressante pour le sylviculteur ? 2e partie
Colson, Vincent ULg; Claessens, Hugues ULg; Pauwels, D. et al

in Silva Belgica (2002), 109(4), 25-31

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See detailMélanges fleuris et insectes auxiliaires
Francis, Frédéric ULg; Colignon, P.; Haubruge, Eric ULg

in Canard Déchaîné du Kauwberg (Le) (2004), 50

Detailed reference viewed: 41 (3 ULg)