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Peer Reviewed
See detailComparaison de trois méthodes d'apprentissage dans la maladie d'Alzheimer
Bier, Nathalie; Gagnon, Lise; Van der Linden, Martial et al

Poster (2003, May 23)

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See detailComparaison de trois modalités de testing des compétences en français chez les étudiants médecins lors de leur première candidature à l'ULg
Gilles, Jean-Luc ULg; Melon, Solange

in Defays, Jean-Marc (Ed.) La maîtrise du français du niveau secondaire au niveau supérieur (2000)

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See detailComparaison de variables associées à la motivation intrinsèque en éducation physique dans deux classes de filles
Ledent, Maryse; Motter, Pascale; Piéron, Maurice et al

Poster (2002, September 28)

Implicitement ou explicitement, la motivation fait partie de notre quotidien: la sphère familiale, le monde professionnel et celui des loisirs sont envahis de principes donnant à cette motivation un rôle ... [more ▼]

Implicitement ou explicitement, la motivation fait partie de notre quotidien: la sphère familiale, le monde professionnel et celui des loisirs sont envahis de principes donnant à cette motivation un rôle central dans le développement de comportements adéquats. L'école, partie intégrante de la société et à sa suite l'éducation physique, constituent également un domaine propice à ce genre de discours. [less ▲]

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See detailComparaison des analyses sérologiques et bactériologiques de détection des salmonelles dans le suivi sanitaire d'exploitations porcines
Korsak Koulagenko, Nicolas ULg; Leroy, Bernadette ULg; Etienne, Grégory et al

in 36èmes Journées de la Recherche Porcine (2004)

The significance of a Salmonella serological technique has been evaluated in 91 batches from 9 pigs fattening herds. Samples for bacteriology (method based on motility of Salmonella in semi-solid medium ... [more ▼]

The significance of a Salmonella serological technique has been evaluated in 91 batches from 9 pigs fattening herds. Samples for bacteriology (method based on motility of Salmonella in semi-solid medium) were taken at different steps during fattening: 2, 3 and 4 months after the beginning of the fattening period. The serological test (Salmotype Pig-LPSElisa) has been applied on meat juice obtained after thawing of diaphragm meat cuts taken on the slaughter line. The performances of the serological method were evaluated by choosing microbiological method as reference. Correlations were practiced by comparing results of optical densities of samples with cut-off values corresponding to 4 different antibody concentrations. Forty-eight different possibilities have thus been created depending on the percentage of positive samples above the cut-off value and in function of arithmetic and geometric means. The results have shown that negative predictive values ranged from 52.8 and 100 % and that the relative sensitivity varied between 4.5 and 100 %. One classification model appeared better than the others due to maximization of Kappa, negative predictive and relative sensitivity values: batch considered positive when at least 50 % of samples were characterized by an optical density higher than OD20% (optical density corresponding to an antibody concentration of 20 %). The present experiment showed the importance of good classification of individual serological results in order to strengthen the on-farm bacteriological surveillance of herds. [less ▲]

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See detailComparaison des bilans azoté, des émissions atmopshériques et des rayons de gene olfactive d'exploitations productrices de porc biologique, fermier et conventionnel en Région wallonne.
Degre, Aurore ULg

Doctoral thesis (2005)

The pig production in walloon region exists in different forms. The conventional production exists side by side with some productions of “differentiated qualities” that are encouraged as much by the ... [more ▼]

The pig production in walloon region exists in different forms. The conventional production exists side by side with some productions of “differentiated qualities” that are encouraged as much by the European Union as by the Walloon Region. At the same time, the EU and the Walloon Region are imposing environmental limitations concerning the management of nitrogen, the respect to the residents… Differentiated quality and the respect of the environment seem to be linked implicitly, but no demonstration of this exists for the pig production. The object of the present survey was to compare the nitrogen balances, the atmospheric emissions and the distance of odour diffusion for the conventional production, organic production and the production "fermier". This is taking into account the real process performances of the farms, existing legislation, the opinion of a jury of experts on the relative importance of the atmospheric emissions of pig production and the political objectives of the Region they are situated in. This survey is based on 21 farms, which are organised into three categories. These farms have been audited with the software “Ecoferme”. The nitrogen fluxes and the nitrogen balance within these exploitations were simulated. The atmospheric emissions and the distance of odour diffusion were estimated as well. A jury of 16 experts was formed, which was composed of four poles: a scientific pole, a pole of public proxies and administrations, a pole of producers and a pole of the third party (citizens, neighbours, … ). This jury was questioned according to a Delphi method (individually and repetitively) to assign a relative importance to the emissions of ammonia, greenhouse gases, molecular nitrogen and odour. The most important weighting was assigned to the odour diffusion, the emission of ammonia came next, then the emissions of greenhouse gas and finally the emission of molecular nitrogen got a weak weighting. Some criteria have been constructed to characterize the performances of the farms, which take into account of the spreading of organic nitrogen and the commitment taken by the Region to follow the protocols of Kyoto and Gothenburg. The comparison of the process performances was achieved by means of the method of multicriteria analysis Electre III, which was applied to the global averages. The relative ordering obtained was: organic production, production “fermier” and conventional production. However within every sample an important variability of the performances was observed. The same method applied within every sample enables the creation of subgroups, working according to the same specifications but with weak, middle and good performances. The application of the ordering method to the nine subgroups shows that the most effective exploitations of every system of production are classified as top of the class. Thus, on average, the production of differentiated qualities are more environmentally effective than the conventional production but the variability of the performances within a system of production is important and it is quite possible for the conventional exploitations to reach some results comparable to those of the best organic and “fermier” exploitations. [less ▲]

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See detailComparaison des cahiers des charges de filières de production porcine sous « signe de qualité » en Région wallonne.
Degre, Aurore ULg; Verheve, Didier; Debouche, Charles ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2002), 6(4), 221-230

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See detailComparaison des caractéristiques de production de la pintade locale (Meleagris numida) en station et dans le milieu villageois en zone soudano-guinéenne du Bénin
Dahouda, Mahamadou; Sènou, Marcel; Toléba, Seibou Soumanou et al

in Livestock Research for Rural Development (2008), 20(12),

A survey on the production characteristics of guinea fowl (Meleagris numida) was carried out in the Borgou department located in the soudano-guinean zone North-Est of Benin. Chicks and reproductive groups ... [more ▼]

A survey on the production characteristics of guinea fowl (Meleagris numida) was carried out in the Borgou department located in the soudano-guinean zone North-Est of Benin. Chicks and reproductive groups were kept either on station under improved management conditions or in rural environment. In rural environment, the birds were divided in two groups. The birds pertaining to the first group were treated against parasitic diseases, whereas those in the second one (control group) received no treatment. Under station conditions, the feed conversion ratio and the daily weight gain were 8.8 and 5.7 g/day respectively. Mean body weight at six months of age were 1151g and 1085g for males and females, respectively. Sexual maturity was reached at 36 weeks of age. For mature hens kept on station, laying rate and the mean egg weight were 37.2% (65% at the peak) and 41.1g respectively. Smothering, stress and pricking were the major constraints to the cloistering of guinea fowl. In rural environment, the mean hatchability rate was 70%. Mortality rate and adult body weight were not significantly different between groups. Mortality rate observed in the rural environment was 50% for both treated or untreated birds. Apart from the parasitic affections, the main causes of mortality were the rain, the predators, the cold and the fragility of chicks. The mean body weight at six months of age is higher for the birds raised under village conditions in comparison to the birds kept on station. [less ▲]

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See detailComparaison des dosages de BNP et NT-proBNP dans l'insuffisance cardiaque
Le Goff, Caroline ULg; Da silva, Alice; Chapelle, Jean-Paul ULg

Poster (2006, March 16)

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See detailComparaison des effets de différents types de traitement phytosanitaires des semences de cotonnier au Burundi et en Grèce
Carême, C.; Mergeai, Guy ULg; Ydraiou, Francesca et al

in Tropicultura (1996), 14

Les effets de plusieurs matières actives insecticides et de différentes techniques de traitement des semences du cotonnier ont été étudiés lors de 7 essais réalisés au Burundi et en Grèce en 1993 et 1994 ... [more ▼]

Les effets de plusieurs matières actives insecticides et de différentes techniques de traitement des semences du cotonnier ont été étudiés lors de 7 essais réalisés au Burundi et en Grèce en 1993 et 1994. Les essais menés au Burundi mettent en évidence l'efficacité très hautement significative sur Aphis gossypii Glover de l'imidaclopride à la dose de 3g m.a./kg, associé au chlorothalonil à 0,8 g/kg semences, utilisé en enrobage des semences délintées. L'absence de pression parasitaire n'a pas permis de départager les traitements testés en Grèce en ce qui concerne leur efficacité pour lutter contre les ravageurs qui attaquent le cotonnier au début de son cycle. Les observations écophysiologiques réalisées au cours de ces expérimentations mettent en évidence une amélioration significative de la précocité de la maturation des capsules chez les plantes issues de graines enrobées portant une dose moyenne de 2,2 g d'imidaclopride et 2,4 g de TMTO par kg de semences. Le gain de précocité est en moyenne de 10 jours par rapport au traitement témoin. [less ▲]

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See detailComparaison des effets du bromure d'ethidium et du complexe bromure d'ethidium-acide desoxyribonucleique dans des cellules tumorales d'Ehrlich.
Desaive, Claude ULg; Heinen, Ernst ULg; Bassleer, R. et al

in Comptes Rendus des Séances de l'Académie des Sciences. Série D : Sciences Naturelles (1977), 284(15), 1485-8

When injected into the peritoneal cavity, ethidium bromide can strongly inhibit the multiplication of mouse Ehrlich ascites tumour cells. This antitumour effect is increased when ethidium bromide is ... [more ▼]

When injected into the peritoneal cavity, ethidium bromide can strongly inhibit the multiplication of mouse Ehrlich ascites tumour cells. This antitumour effect is increased when ethidium bromide is linked to DNA and also injected into the peritoneal cavity. The cellular alterations are identical after a treatment with E.B. either free or bound to DNA. However, when the cells are treated with E.B.-DNA they contain E.B. for a longer period than after a treatment with E.B. [less ▲]

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See detailComparaison des émissions gazeuses lors de l'élevage de porcelets sevrés et de porcs charcutiers sur caillebotis et sur litières accumulées
Nicks, Baudouin ULg

in Proceedings de la journée d'étude "Agriculture-Environnement: aujourd'hui et pour demain" (2004)

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See detailComparaison des Kess-Kess de Hmar Lakhdad (Emsien, Maroc) et des monticules micritiques de l'anticlinorium de Philippeville (Frasnien, Belgique)
Hilali, A.; Lachkem, H.; Boulvain, Frédéric ULg

in Geologica Belgica (1999), 1

A Comparison between the Kess-kess of Hmar Lakhdad (Emsian, Morocco) and the mud mounds of the Philippeville Anticlinorium (Frasnian, Belgium). The Kess-kess of Hmar Lakhdad are Devonian mud mounds ... [more ▼]

A Comparison between the Kess-kess of Hmar Lakhdad (Emsian, Morocco) and the mud mounds of the Philippeville Anticlinorium (Frasnian, Belgium). The Kess-kess of Hmar Lakhdad are Devonian mud mounds, located SE of Erfoud (Moroccan Antiatlas). Fenestral structures, which are very abundant, occur from the base to the top of most buildups. These structures are classified in two groups: stromatactis s.s. and stromatactoid fenestrae. each of them showing a high morphological variability. These fenestrae look very similar to the structures already described from the Belgian mud mounds. However, their attribution to sponges cannot be demonstrated. Microstromatolifhes, a microbial structure, are common in the Moroccan and Belgian buildups. The numerous sedi-mentological similarities between the two types of mounds allow to assign the facies of the Kess-kess to the coral-crinoidal limestones at the base of the Belgian buildups. This comparison justifies a paleoecological and paleobathy-metrical interpretation of the Moroccan mud mounds. [less ▲]

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