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See detailMeasuring the Social Economy in the Framework of the National Accounts
Mertens de Wilmars, Sybille ULg

in Defourny, Jacques; Nyssens, Marthe; Develtere, Patrick (Eds.) et al The worldwide making of the social economy. Innovations and changes (2009)

Sybille Mertens examines a new major development in the recognition of the social economy (nonprofit organisations, cooperatives, mutuals, social enterprises. She describes the efforts of numerous ... [more ▼]

Sybille Mertens examines a new major development in the recognition of the social economy (nonprofit organisations, cooperatives, mutuals, social enterprises. She describes the efforts of numerous research teams around the world to improve the statistical knowledge and economic measurement of this sector, with aspecific focus on the development of satellite accounts. [less ▲]

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See detailVariability of major fatty acid contents in Luxembourg dairy cattle
Soyeurt, Hélène ULg; Arnould, Valérie ULg; Dardenne, Pierre et al

in Book of Abstracts of the 60th Annual Meeting of the European Association for Animal Production (2009)

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See detailThe main and accessory olfactory systems interact in the control of mate recognition and sexual behavior
Keller, M.; Baum, M. J.; Brock, Olivier ULg et al

in Behavioural Brain Research (2009)

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See detailMolecular characterization of the bovine GHRL gene
Colinet, Frédéric ULg; Portetelle, Daniel ULg; Renaville, Robert ULg

in Archiv für Tierzucht = Archives Animal Breeding (2009), 52(1), 79-84

Bovine ghrelin, a 27 amino acid pepticle, has been identified in oxyntic glands of the abomasum. It is an endogenous ligand for growth hormone secretagogue receptor and stimulates food intake and growth ... [more ▼]

Bovine ghrelin, a 27 amino acid pepticle, has been identified in oxyntic glands of the abomasum. It is an endogenous ligand for growth hormone secretagogue receptor and stimulates food intake and growth hormone secretion. The bovine GHRL gene was completely sequenced and consists of five exons and four introns. Like mouse and human GHRL genes, we found that the bovine GHRL gene also contains a first non-coding exon of 21 bp. The bovine GHRL gene codes for 116 amino acid pepticle named preproghrelin which contains the ghrelin pepticle and another pepticle similar to obestatin. Sequence analysis revealed eight polymorphisms, which are located in the non-coding sequence of the gene. [less ▲]

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See detailGenetic analysis of lactoferrin content in bovine milk
Arnould, Valérie ULg; Soyeurt, Hélène ULg; Gengler, Nicolas ULg et al

in Journal of Dairy Science (2009), 92(5), 2151-2158

Bovine lactoferrin (LF) is mainly present in milk and shows important physiological and biological functions. The aim of this study was to estimate the heritability and correlation values of LF content in ... [more ▼]

Bovine lactoferrin (LF) is mainly present in milk and shows important physiological and biological functions. The aim of this study was to estimate the heritability and correlation values of LF content in bovine milk with different economic traits as milk yield (MY), fat and protein percentages, and somatic cell score (SCS). Variance components of the studied traits were estimated by REML using a multiple-trait mixed model. The obtained heritability (0.22) for LF content predicted using mid-infrared spectrometry (pLF) suggested the possibility of animal selection based on the increase of LF content in milk. The phenotypic and genetic correlation values calculated between pLF and SCS were moderate (0.31 and 0.24, respectively). Furthermore, a preliminary study of bovine LF gene polymorphism effects was performed on the same production traits. By PCR, all exons of the LF gene were amplified and then sequenced. Three new polymorphisms were detected in exon 2, exon 11, and intron 8. We examined the effects of LF gene polymorphisms of exons 2, 4, 9, 11, and 15, and intron 8 on pLF, MY, fat and protein percentages, and SCS. The different observed effects did not reach a significant level probably because of the characteristics of the studied population. However, the results were promising, and LF may be a potential indicator of mastitis. Further studies are necessary to evaluate the effect of genetic selection based on LF content on the improvement of mastitis resistance. [less ▲]

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See detailAfrican American and Caribbean Literatures in Belgium: So Close, Yet So Far Apart
Ledent, Bénédicte ULg

in Transatlantica: Revue d'études américaines / American studies journal (2009), 1

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See detailSchaefer Karl R., Enigmatic Charms. Medieval Arabic Block Printed Amulets in American and European Libraries and Museums.
Bauden, Frédéric ULg

in Bulletin Critique des Annales Islamologiques (2009), 25

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See detailDiem Werner, Ein arabisches Rechtsgutachten zum Eherecht aus dem 11.-12. Jahrhundert aus der Heidelberger Papyrussammlung.
Bauden, Frédéric ULg

in Bulletin Critique des Annales Islamologiques (2009), 25

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See detailA multi-scale approach to facultative paedomorphosis of European newts (Salamandridae) in the Montenegrin karst: Distribution pattern, environmental variables, and conservation
Denoël, Mathieu ULg; Ficetola, Gentile Francesco; Cirovic, Ruza et al

in Biological Conservation (2009), 142(3), 509-517

Facultative paedomorphosis, a process in which newt larvae can opt for reproduction before or after metamorphosis, is geographically heterogeneous. Despite numerous ecological studies and recent evidence ... [more ▼]

Facultative paedomorphosis, a process in which newt larvae can opt for reproduction before or after metamorphosis, is geographically heterogeneous. Despite numerous ecological studies and recent evidence of declines in paedomorphic populations, however, no attempt to model environmental variables that explain the presence of paedomorphs has been made at a multi-scale level. Our aim was to fill this gap in studying three newt species (Lissotriton vulgaris, Mesotriton alpestris, and Triturus macedonicus) of the Montenegrin karst as model species. To this end, we used multivariate analysis on three scales of habitat: the breeding pond, the land use and the climatologic features. Results show that the study area is both an important hotspot for paedomorphosis and where intraspecific diversity is quickly disappearing (20-47% extirpation) because of fish introductions. Other habitat variables (water permanency, PH or the habitat origin) were shown to act on paedomorphosis but not consistently across species, confirming complexity of the evolutionary and ecological processes. This study appeals for more long-term and detailed landscape studies of polyphenisms, a neglected but promising topic, to better understand and protect alternative modes of development. Particularly, measures should be taken to identify hotspots of intraspecific diversity at a global scale and stop fish introductions before we reach a point of no-return. (C) 2008 Elsevier Ltd. All rights reserved. [less ▲]

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See detailNaît-on géographe ou le devient-on ?
Halleux, Jean-Marie ULg

in Bulletin de la Société Géographique de Liège (2009), 52

Ce court article expose une réflexion introspective sur les raisons qui poussent à devenir géographe et à s’orienter vers tel ou tel domaine de la discipline. Pour l’auteur, ces raisons semblent combiner ... [more ▼]

Ce court article expose une réflexion introspective sur les raisons qui poussent à devenir géographe et à s’orienter vers tel ou tel domaine de la discipline. Pour l’auteur, ces raisons semblent combiner une attirance pour la compréhension du Monde qui nous entoure et certaines expériences de vie. L’analyse personnelle présentée conduit également à souligner les exigences du métier de géographe et à relever combien sa pratique est dépendante de son insertion dans l’univers social. [less ▲]

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See detailDiffering in vitro biology of equine, ovine, porcine and human articular chondrocytes derived from the knee joint: an immunomorphical study.
Schulze-Tanzil, Gundula; Kohl, B.; Müller, R. D. et al

in Histochemistry & Cell Biology (2009), 131

For lack of sufficient human cartilage donors, chondrocytes isolated from various animal species are used for cartilage tissue engineering. The present study was undertaken to compare key features of ... [more ▼]

For lack of sufficient human cartilage donors, chondrocytes isolated from various animal species are used for cartilage tissue engineering. The present study was undertaken to compare key features of cultured large animal and human articular chondrocytes of the knee joint. Primary chondrocytes were isolated from human, porcine, ovine and equine full thickness knee joint cartilage and investigated flow cytometrically for their proliferation rate. Synthesis of extracellular matrix proteins collagen type II, cartilage proteoglycans, collagen type I, fibronectin and cytoskeletal organization were studied in freshly isolated or passaged chondrocytes using immunohistochemistry and western blotting. Chondrocytes morphology, proliferation, extracellular matrix synthesis and cytoskeleton assembly differed substantially between these species. Proliferation was higher in animal derived compared with human chondrocytes. All chondrocytes expressed a cartilage-specific extracellular matrix. However, after monolayer expansion, cartilage proteoglycan expression was barely detectable in equine chondrocytes whereby fibronectin and collagen type I deposition increased compared with porcine and human chondrocytes. Animal-derived chondrocytes developed more F-actin fibers during culturing than human chondrocytes. With respect to proliferation and extracellular matrix synthesis, human chondrocytes shared more similarity with porcine than with ovine or equine chondrocytes. These interspecies differences in chondrocytes in vitro biology should be considered when using animal models. [less ▲]

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See detailPlausible values : how to deal with their limitations
Monseur, Christian ULg; Adams, Ray

in Journal of Applied Measurement (2009), 10(3),

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See detailSexual size dimorphism in the evolutionary context of facultative paedomorphosis: insights from European newts
Denoël, Mathieu ULg; Ivanovic, Ana; Dzukic, Georg et al

in BMC Evolutionary Biology (2009), 9

BACKGROUND:Sexual size dimorphism (SSD) is a key evolutionary feature that has been studied in many organisms. In a wide range of species, this pattern is more complex because of polymorphism within each ... [more ▼]

BACKGROUND:Sexual size dimorphism (SSD) is a key evolutionary feature that has been studied in many organisms. In a wide range of species, this pattern is more complex because of polymorphism within each sex. However, it is not known whether the magnitude and direction of SSD could be affected by alternative developmental trajectories within sexes. Our aim was to test whether an intrasexual polymorphism, facultative paedomorphosis (a process in which the development of somatic and gonadal tissues differs in alternative morphs), could affect SSD variation patterns in European newts. RESULTS:We report here the first evidence that SSD varies depending on the paedomorphic or metamorphic ontogenetic pathway. In species with a consistent female-biased SSD, paedomorphosis decreased the SSD level, but did not affect its direction. In species with moderate female-biased SSD or variable SSD patterns, paedomorphosis changed the magnitude, or both the magnitude and the direction, of SSD. CONCLUSIONS:Our study highlights the importance of developmental processes for shaping SSD patterns in populations in which contrasting life-history pathways evolved. European newts express different SSD patterns depending on their developmental pathway (i.e., metamorphosis versus paedomorphosis), as well as their species and population. These findings emphasize the importance of studying alternative morphotypes, which are found in a wide range of animal groups, to understand the evolution of SSD. [less ▲]

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See detailNouveaux développement dans le traitement de la dépression
PITCHOT, William ULg; Scantamburlo, Gabrielle ULg; Constant, Eric et al

in Acta Psychiatrica Belgica (2009)

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