Recursos de colección

ORBi Open Repository and Bibliography (263.678 recursos)

In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision). This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.

Life sciences

Mostrando recursos 1 - 20 de 18.672

  1. Is the observer effect significant in vegetation assessment of restored metallicolous grassland?

    Boisson, Sylvain; Mahy, Grégory
    Projects that prospects habitat restoration require protocols of vegetation assessment to monitor the evolution of the restored ecosystems over time. In most cases, multiple assessors are needed and some studies have shown that the variability among observer can be significant. In the context of tropical grassland, few studies quantified the impact of the observer on the results, reducing the capacity to replicate conclusions, and, therefore to plan restoration strategies at large scale. This study aims to quantify the variation among observers using two phytosociological methods on restored metallicolous grassland and to test whether variation in the assessment could involve the...

  2. Isotopic turnover and trophic fractionation in two species of European freshwater fishes: an experimental approach

    Latli, Adrien; Sturaro, Nicolas; Michel, Loïc; Dejardin, Nelson; Defour, Jean; Lepoint, Gilles; Kestemont, Patrick

  3. MANAGEMENT OF MICROBIAL COMMUNITIES ON THE BASIS OF SINGLE CELL TECHNOLOGIES: APPLICATION TO CELLULOSE DEGRADATION AND BIOFILM FORMATION

    Kinet, Romain

  4. Are Christmas tree plantations a suitable habitat for farmland birds?

    Gailly, Robin; Paquet, Jean-Yves; Titeux, Nicolas; Claessens, Hugues; Dufrêne, Marc
    Over the last decade, nonfood perennial crops have been increasingly prevalent in European farming systems. Here, vegetation structure and crop management greatly differ from conventional crops and may likely impact farmland birds. Impacts on birds have been examined for bioenergy agricultural systems, such as miscanthus plantations and short rotation willow coppice. In Europe, the extend of Christmas tree plantations (CTP) has recently increased dramatically in farmland but their impacts on farmland birds remains largely unknown. We examined the extent to which CTP in southern Belgium alter bird species assemblages compared to traditional farmland. The presence and abundance of birds were recorded...

  5. Are Christmas tree plantations a suitable habitat for farmland birds?

    Gailly, Robin; Paquet, Jean-Yves; Titeux, Nicolas; Claessens, Hugues; Dufrêne, Marc
    Over the last decade, nonfood perennial crops have been increasingly prevalent in European farming systems. Here, vegetation structure and crop management greatly differ from conventional crops and may likely impact farmland birds. Impacts on birds have been examined for bioenergy agricultural systems, such as miscanthus plantations and short rotation willow coppice. In Europe, the extend of Christmas tree plantations (CTP) has recently increased dramatically in farmland but their impacts on farmland birds remains largely unknown. We examined the extent to which CTP in southern Belgium alter bird species assemblages compared to traditional farmland. The presence and abundance of birds were recorded...

  6. DIFFERENCIATION GENETIQUE ENTRE POPULATIONS NATIVES ET INVASIVES DU CHENE ROUGE D’AMERIQUE (QUERCUS RUBRA L.)

    Merceron, Nastasia
    Notre objectif est de comprendre le rôle de l’évolution rapide des populations dans le succès des arbres invasifs. Une étude précédente a permis de montrer, par exemple, que les populations européennes de Acer negundo présentent une croissance plus élevée et une durée de saison de croissance plus longue expliqué par un débourrement plus précoce par rapport aux mêmes caractères observés chez les populations natives des États-Unis. Ceci a été observé dans un test de provenance au sein de l’aire invasive, ces tests comparatifs formant des outils appropriés pour l'étude de la différenciation génétique entre populations d'origines différentes via l’analyse de...

  7. Genetic differentiation of native and introduced populations of Quercus rubra L

    Merceron, Nastasia
    Peer reviewed

  8. Carrières et Biodiversité : Les Oiseaux

    Gailly, Robin
    Reconnaissance et bonnes pratiques de gestion des espèces d’oiseaux liées à l'activité d’extraction

  9. Hivernage de deux Tichodromes échelettes Tichodrama muraria en Wallonie en 2014-2015

    Gailly, Robin; Mathelart, Charlotte
    Peer reviewed

  10. Narrowing the science/policy gap for environmental management

    Hughes, Kevin A; Liggett, Daniela; Roldan, Gabriela; Wilmotte, Annick; Xavier, José C
    Antarctic terrestrial and marine environments are under increasing pressure from national operator activities, tourism and climate change. The Protocol on Environmental Protection to the Antarctic Treaty provides overarching legislation concerning the environmental management of the Treaty area, with 2016 marking the Protocol’s 25th anniversary. The Protocol also established the Committee for Environmental Protection (CEP) to provide advice to the Antarctic Treaty Consultative Meeting (ATCM) on environmental matters. Today, the CEP’s Five-Year Work Plan and Climate Change Response Work Programme lists and prioritises issues that need to be addressed to ensure impacts in Antarctica by human activities are both recognized andminimised.Despite all of this, recent evaluations have suggested...

  11. Gram-Negative Bacteria: "Inner" vs. "Cytoplasmic" or "Plasma Membrane": A Question of Clarity rather than Vocabulary

    Baurain, Denis; Wilmotte, Annick; Frère, Jean-Marie
    In this short commentary, we show that the utilisation of the term “inner membrane” to characterize the cytoplasmic or plasma membrane of Gram-negative bacteria can be a source of confusion and we propose that it should be completely abandoned.

  12. Hautes Valeurs de Conservation (HVC) dans les Unités Forestières d'Aménagement du Cameroun : concepts, choix et pratiques

    Daïnou, Kasso; Bracke, Charles; Vermeulen, Cédric; Haurez, Barbara; De Vleeschouwer, Jean-Yves; Fayolle, Adeline; Doucet, Jean-Louis
    Le système de certification FSC (Forest Stewardship Council) vise à promouvoir la gestion durable des forêts. Il repose sur un ensemble de normes dont une est particulièrement complexe à mettre en oeuvre en Afrique Centrale, le principe 9 traitant des Hautes Valeurs de Conservation (HVC). Ce principe devrait être interprété aux échelons nationaux afin de prendre en compte les spécificités de chaque pays. Bien que des ouvrages aient déjà été élaborés par diverses organisations, aucun ne cible particulièrement les grandes concessions forestières. Au Cameroun, ces concessions ou Unités Forestières d’Aménagement (UFA), représentent pourtant 40 % du domaine forestier national. Le présent...

  13. Cryopreservation of chicken primordial germ cells by vitrification and slow-freezing: a comparative study

    Tonus, Céline(*); Connan, Delphine(*); Waroux, Olivier(*); Vandenhove, Benoit; Wayet, Jérome; Gillet, Laurent; Desmecht, Daniel; Antoine, Nadine; Ectors, Fabien; Grobet, Luc
    Peer reviewed

  14. Metabolites from media supplemented with 3’-sialyllactose and fermented by bifidobacteria have an antivirulent effect against intestinal pathogens

    Bondue, Pauline
    Introduction Complex oligosaccharides from human milk (HMO) promote growth of bifidobacteria such as Bifidobacterium bifidum [1]. Whey, a by-product of dairy-industry, contents complex oligosaccharides (BMO) similar to HMO, which are mainly represented in colostrum by 3’-sialyllactose (3’SL) [2]. Bifidobacterium crudilactis, a species of bovine origin, encodes for β galactosidases and α-glucosidases and could therefore be able to metabolise those BMO [3; 4; 5]. In addition, fermentation products from bifidobacteria can produce antivirulent activity against intestinal pathogenic bacteria [6; 7]. This study focused on capacity of bifidobacteria to metabolise BMO, more particularly 3’SL, and on potential antivirulent effect of cell-free spent media...

  15. Study on contribution of lipids towards the mechanical properties of milk fat globule membrane monolayer

    Malik, Priyanka; Danthine, Sabine; Blecker, Christophe
    Milk fat globule membrane (MFGM) stabilizes fat globule in milk in form of emulsion. The primary monolayer of MFGM is rich in proteins and secondary bilayer is rich in polar lipids. MFGM finds application as an additive in dairy and food industry (e.g. emulsions, infant formulas & reduced-fat products) for its emulsifying and stabilizing properties. MFGM received much attention in recent years due to both its health- beneficial & technological functionalities. This work has been carried out with the objective to understand contribution of various components towards the surface properties of complete MFGM. MFGM was isolated from fresh raw cream....

  16. Dopaminergic neurons differentiating from LRRK2 G2019S induced pluripotent stem cells show early neuritic branching defects.

    Borgs, Laurence(*); Peyre, Elise(*); Alix, Philippe; Hanon, Kevin; Grobarczyk, Benjamin; Godin, Juliette D.; Purnelle, Audrey; Krusy, Nathalie; Maquet, Pierre; Lefèbvre, Philippe; Seutin, Vincent; Malgrange, Brigitte(*); Nguyen, Laurent(*)
    Peer reviewed

  17. Extremophile plants as source of biopesticides against European damageable plant pathogens

    Ben Kaab, Sofiène; Parisi, Olivier; De Clerck, Caroline; ksouri, riadh; Jijakli, Haissam
    The use of plant-derived products in postharvest disease management may be a valid alternative to conventional chemical treatments (Pane et al., 2016). Unfavorable environmental conditions (such as salt and drought) increase production and accumulation of reactive oxygen species (ROS). Consequently, extremophile plants have developed adaptive responses including the synthesis of specific bioactive molecules used for medical and nutritional purposes (Ksouri et al., 2012). In that context, the main objective of the present study was the identification of effective plant extracts and essential oils from extremophile plants against the most important plant pathogens in Europe (in term of loss, treatment necessity and/or cost). The study began with the selection of...

  18. Genetic Differentiation Between Native and Invasive Populations of Quercus rubra L.

    Merceron, Nastasia
    Peer reviewed

  19. Growth and Freeze-Drying Optimization of Bifidobacterium crudilactis

    Tanimomo, Jean; Delcenserie, Véronique; Taminiau, Bernard; Daube, Georges; Saint-Hubert, Catherine; Durieux, Alain
    Peer reviewed

  20. Influence of transvaginal ultrasound-guided follicular punctures on heart rate, respiratory rate, facial expression changes and salivary cortisol in the mare as pain scoring

    Deleuze, Stefan; Reigner, Fabrice; Diego, Rodrigo; Douet, Cécile; Blard, Thierry; Cognié, Juliette; Goudet, Ghylène
    Peer reviewed

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