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See detailShort- and long-term advantages of an alternative ontogenetic pathway
Denoël, Mathieu ULg; Hervant, F.; Schabetsberger, R. et al

in Biological Journal of the Linnean Society (2002), 77(1), 105-112

We documented hypotheses on the evolution of developmental heterochronies by estimating short- and long-term advantages of alternative morphs. In this respect, we compared food energy intakes and body ... [more ▼]

We documented hypotheses on the evolution of developmental heterochronies by estimating short- and long-term advantages of alternative morphs. In this respect, we compared food energy intakes and body condition between paedomorphic and metamorphic Alpine newts (Triturus alpestris, Caudata, Amphibia) in four populations. Because we found a strong correlation between fat reserves and body condition, we used this last parameter as an indicator of long-term gains. In all studied sites, paedomorphic females showed higher body condition than metamorphic ones. Paedomorphic males were also at advantage in two populations. Paedomorphs exhibited higher energy intakes than metamorphs in two populations and similar gains in two others. Our results support unifying theories that predict the occurrence of facultative paedomorphosis in varied habitats as paedomorphs exhibited better energy balance than metamorphs. This work shows the need for considering integrative parameters such as body condition in the comparative study of performances when studying developmental heterochronies. (C) 2002 The Linnean Society of London, Biological Journal of the Linnean Society, 2002, 77, 105-112. [less ▲]

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See detailEffets de l’environnement proche sur la biodiversité entomologique en carottes de plein champ
Colignon, Pierre; Hastir, Pierre; Gaspar, Charles et al

in Annales de la 2ème Conférence Internationale sur les moyens alternatifs de lutte contre les organismes nuisibles aux végétaux (2002)

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See detailEntomological diversity in agro-ecosystems : not necessarily an ecological desert
Francis, Frédéric ULg; Haubruge, Eric ULg; colignon, Pierre et al

in Bulletin de l’Institut Royal des Sciences naturelles de Belgique, Biologie, 72 : 153-154. (2002)

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See detailMesures agri-environnementales et biodiversité : effet des tournières enherbées sur les populations de syrphes en grandes cultures
Francis, Frédéric ULg; Devallée, Gilles; Terwagne, Sébastien et al

in 1. Annales de la 2ème Conférence Internationale sur les moyens alternatifs de lutte contre les organismes nuisibles aux végétaux (2002)

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See detailContinuité de la délinquance entre l’adolescence et l’âge adulte
Born, Michel ULg

in Criminologie (2002), 35(1), 53-67

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See detailThe co-operative movement in Belgium: Perspectives and prospects
Defourny, Jacques ULg; Adam, Sophie; Simon, Michel

Book published by Luc Pire (2002)

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See detailLes souches pathogènes d'Escherichia coli chez les chiens et les chats : IV) Discussion générale
Mainil, Jacques ULg

in Annales de Médecine Vétérinaire (2002), 146(4, AUG-SEP), 219

This manuscript reviews the current knowledge on the main classes of pathogenic Escherichia coli in dogs and cats: type 1 necrotoxigenic strains (NTEC1), adhesin-positive strains (AdEC), enteropathogenic ... [more ▼]

This manuscript reviews the current knowledge on the main classes of pathogenic Escherichia coli in dogs and cats: type 1 necrotoxigenic strains (NTEC1), adhesin-positive strains (AdEC), enteropathogenic strains (EPEC) and enterotoxigenic strains (ETEC). They represent primary or secondary (to other bacterial, parasitic and/or viral infections) infectious agents. NTEC1 and AdEC are the most frequent and are responsible for intestinal, urinary tract and invasive infections, while EPEC and ETEC limit their infections to the intestinal tract. ETEC are the less frequent but EPEC are more and more often observed. The specific virulence factors and other properties of these pathogenic E. coli strains are similar to those of their bovine, human and porcine counterparts, for their identity and their genetic determinism. This similarity allows the use of an identical approach in their diagnosis and typing. But for some NTEC1, AdEC and EPEC strains the similarity is so close that it also raises the question of their zoonotic potential, though there is up to now no epidemiological evidence of such cross contamination of man by canine or feline pathogenic E. coli (or vice versa). [less ▲]

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See detailEchocardiographic evaluation of cardiac performance during stimulation with dobutamine in conscious horses: a preliminary study.
Sandersen, Charlotte ULg; Delguste, Catherine ULg; Becker, Martine et al

in Pflügers Archiv : European Journal of Physiology (2002), 444(1-2), 4

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See detailLa colibacillose aviaire
Stordeur, Philippe; Mainil, Jacques ULg

in Annales de Médecine Vétérinaire (2002), 146(1, FEB-MAR), 11-18

The avian pathogenic E. coli strains, although considered by almost like opportunist pathogen, represent actually one of the most important cause of economic losses in the poultry sector and is one of the ... [more ▼]

The avian pathogenic E. coli strains, although considered by almost like opportunist pathogen, represent actually one of the most important cause of economic losses in the poultry sector and is one of the most frequent cause of carcase rejection in the slaughter house. Colibacillosis, which the major way of penetration is the respiratory tract, affect essentially broilers and give variable lesions and manifestations in function of the age of the animals. Actually, some virulence factors have been studied and associated with avian pathogenic E. coli strains : P and F1 fimbriae, hemagglutination, serum resistance, aerobactin system. Recent studies have also showed that other virulence factors (F17 and Afa adhesins) were also present in the avian pathogenic E. coli, but their rule in the pathogenicity must to be established. Because of the diversity of virulence factors and the little of knowledge about us, no vaccine is actually available to protect efficacely poultries against colibacillosis. Thus, the antibiotherapy based on a good diagnostic and a good prevention remained the only things to do in order to overcome the disease, despite the augmentation of antibiotics resistance and the risk of transferring to humans. [less ▲]

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See detailConception réalisation et test d'un support alternatif de cours : la technologie en ingéniorat de gestion
Degre, Aurore ULg

Master of advanced studies dissertation (2002)

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See detailImpact of closed habitat on the entomological diversity and abundance in carrot open fields
Colignon, Pierre; Gaspar, Charles; Haubruge, Eric ULg et al

in Med. Fac. Landbouw. Univ. Gent (2002), 67(3), 481-486

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See detailEffect of some insecticides on acetylcholinesterase from beneficial insects: Coccinella septempunctata, Chrysoperla carnea and Forficula auricularia
Boszic, Andras; Francis, Frédéric ULg; Gaspar, Charles et al

in Med. Fac. Landbouw. Univ. Gent (2002), 67(3), 671-677

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See detailThe use of random amplified polymorphic DNA (RAPD) analysis for studies of genetic variation in populations of Coccinella septempunctata in Belgium
Haubruge, Eric ULg; Vanlerberghe-Massuti, Flavie; Colignon, Pierre et al

in Med. Fac. Landbouw. Univ. Gent (2002), 67(3), 557-561

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See detailAphid prey suitability as environmental effect on Adalia bipunctata reproduction
Vanhaelen, Nicolas; Gaspar, Charles; Francis, Frédéric ULg

in Med. Fac. Landbouw. Univ. Gent (2002), 67(3), 563-568

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See detailLa mesure de la pression artérielle : écueils et chausse-trapes
Rorive, Georges ULg; Dubois, Bernard ULg; Saint-Remy, Annie ULg

in Revue Médicale de Liège (2002), 57(5), 250-252

La mesure de la pression artérielle est probablement l'acte médical le plus souvent réalisé et certainement un des moins fiables. L'introduction de la mesure ambulatoire de la pression artérielle a permis ... [more ▼]

La mesure de la pression artérielle est probablement l'acte médical le plus souvent réalisé et certainement un des moins fiables. L'introduction de la mesure ambulatoire de la pression artérielle a permis d'identifier l'importance de l'effet consultatio et, par là, de définir l'hypertension de "la blouse blanche". Celle-ci se définit comme une pression artérielle pathologique à la consultation et strictement normale en dehors. Si on la définit de cette manière, cette pathologie ne s'accompagne pas d'une augmentation de la fréqunce des affections cardiovasculaires. Chez un tiers des patients, cependant, elle évolue vers des formes plus sévères de l'hypertension. [less ▲]

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See detailPhylogeny of the genus Apodemus with a special emphasis on the subgenus Sylvaemus using the nuclear IRBP gene and two mitochondrial markers: cytochrome b and 12S rRNA.
Michaux, Johan ULg; Chevret, P.; Filippucci, M*-G et al

in Molecular Phylogenetics & Evolution (2002), 23(2), 123-36

Phylogenetic relationships among 17 extant species of Murinae, with special reference to the genus Apodemus, were investigated using sequence data from the nuclear protein-coding gene IRBP (15 species ... [more ▼]

Phylogenetic relationships among 17 extant species of Murinae, with special reference to the genus Apodemus, were investigated using sequence data from the nuclear protein-coding gene IRBP (15 species) and the two mitochondrial genes cytochrome b and 12S rRNA (17 species). The analysis of the three genes does not resolve the relationships between Mus, Apodemus, and Rattus but separates Micromys from these three genera. The analysis of the two mitochondrial regions supported an association between Apodemus and Tokudaia and indicated that these two genera are more closely related to Mus than to Rattus or Micromys. Within Apodemus, the mitochondrial data sets indicated that 8 of the 9 species analyzed can be sorted into two main groups: an Apodemus group, with A. agrarius, semotus, and peninsulae, and a Sylvaemus group, with uralensis, flavicollis, alpicola, sylvaticus, and hermonensis. The position of Apodemus mystacinus is ambiguous and might be either included in Sylvaemus or considered a distinct subgenus, Karstomys, more closely related to Sylvaemus than to Apodemus. Estimation of the divergence time for these taxa suggests a separation between 7 and 8 My ago for the three groups (mystacinus and the two subgenera Apodemus and Sylvaemus). Within each subgenus, divergence times are between 5.4 and 6 My for Apodemus and between 2.2 and 3.5 My for Sylvaemus and mystacinus. [less ▲]

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See detailSelf-esteem, social adjustment and suicidality in affective disorders
Daskalopoulou, E; Dikeos, D; Papadimitriou, G et al

in European Psychiatry (2002), 17

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See detailDust variability and land degradation in the Sahel
Ozer, Pierre ULg

in Belgeo (2002), 2002(2), 195-209

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