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ORBi Open Repository and Bibliography (190,647 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 12,595

1. Detection of wheat root and straw in soil by use of NIR hyperspectral imaging spectroscopy and Partial Least Square discriminant analysis - Eylenbosch, Damien; Fernández Pierna, Juan Antonio; Baeten, Vincent; Bodson, Bernard
Monitoring of root systems development and crop residues decomposition is only possible if these constituents can be discriminated from soil and quantified. In this work, Near Infrared (NIR) combined with Hyperspectral Imaging (HSI) and Partial Least Square Discriminant Analysis (PLS-DA) is proposed as a new rapid and reliable method to discriminate soil, roots and straws. NIR-HSI provides simultaneously spectral and spatial information and PLS-DA allows discrimination between classes based on spectra of each pixel linked to chemical nature of sample constituents on the image.

2. Sorting of crop residues and fossil bones from soil by NIR Hyperspectral Imaging - Vincke, Damien; Eylenbosch, Damien; Fernández Pierna, Juan Antonio; Baeten, Vincent; Bodson, Bernard; Dardenne, Pierre
Peer reviewed

3. Sorting of crop residues and fossil bones from soil by NIR Hyperspectral Imaging - Vincke, Damien; Eylenbosch, Damien; Baeten, Vincent; Bodson, Bernard; Dardenne, Pierre; Fernández Pierna, Juan Antonio
Soil is a complex matrix containing a wide variety of constituents of interest for disciplines like agronomy or archaeology; it could either be crop residues like roots and straws or bones and ceramics. Current challenges comprise the detection of these constituents as well as the assessment of their qualitative parameters by means of fast and non-destructive analytical methods. The scope of this work is to present two applications using Near Infrared Hyperspectral Imaging (NIR-HSI) combined with chemometrics to sort constituents of soil and to assess their qualitative parameters. The first application concerns the feasibility study of using NIR-HSI to sort crop...

4. The Effect of Urtica dioica Supplements on Egg Quality - Touazi, Leghel; Moula, Nassim
Eggs are a rich source of lipids and proteins. Because of their low production cost, they represent a cheap source of animal proteins and lipids. recently, in Algeria, consumers’ interest are oriented of healthiness and dietetic values food. The purpose of this study was to investigate the effects a dietary supplement of Urtica dioica on laying hen's performance and egg quality. The study was conducted from may to june 2014 in the area of Chemini (Algeria). Sixty, 25-wk-old Lohmann Brown layers were randomly divided into 3 groups with 20 hens in each group. Group 1 was the control group fed...

5. Detection of wheat root and straw in soil by use of Near Infrared hyperspectral imaging system and Partial Least Square discriminant analysis - Eylenbosch, Damien; Fernández Pierna, Juan Antonio; Baeten, Vincent; Bodson, Bernard
Monitoring of root systems development and crop residues decomposition is only possible if these constituents can be discriminated from soil and quantified. In this work, Near Infrared (NIR) combined with Hyperspectral Imaging (HSI) and Partial Least Square Discriminant Analysis (PLS-DA) is proposed as a new rapid and reliable method to discriminate soil, roots and straws. NIR-HSI provides simultaneously spectral and spatial information and PLS-DA allows discrimination between classes based on spectra of each pixel linked to chemical nature of sample constituents on the image.

6. Cyclic lipopeptides from Bacillus subtilis activate distinct patterns of defence responses in grapevine. - Farace, Giovanni; Fernandez, Olivier; Jacquens, Lucile; Coutte, Francois; Krier, Francois; Jacques, Philippe; Clement, Christophe; Barka, Essaid Ait; Jacquard, Cedric; Dorey, Stephan
Peer reviewed

7. Stable isotope ratios reveal trophic niche partitioning among hermit crabs from tropical polyspecific seagrass meadows - Michel, Loïc; Frederich, Bruno; Lavitra, Thierry; Lepoint, Gilles
Polyspecific seagrass meadows are ubiquitous features of tropical coastal zones. These ecosystems are of critical ecological importance, and provide a wide range of socio-economical services to local populations. Meadows however undergo multiple threats linked to human activities (increased nutrient input, overfishing, invertebrate overharvesting, etc.). It is currently hard to assess how seagrass meadows could respond to anthropogenic impacts due to poor knowledge of their functional ecology. In an effort to unravel trophic interactions ruling the food webs associated to seagrass beds of the Toliara Great Reef (SW Madagascar), we studied resource segregation between two common Diogenidae hermit crabs (Dardanus scutellatus...

8. Detection of nitric oxide by diaminofluorescein visualizes the skeleton in living zebrafish. - Renn, Jörg; Pruvot, Benoist; Muller, Marc
Peer reviewed

9. Composition chimique et activité antimicrobienne de l’huile essentielle de Thymus vulgaris du Nord d’Algérie - Sidali, L.; Brada, M.; Fauconnier, Marie-Laure; Lognay, Georges
Peer reviewed

10. Characterization and Adsorption Study of Thymol on Pillared Bentonite - El Miz, Mohamed; Salhi, S.; Chraibi, I.; El Bachiri, A.; Fauconnier, Marie-Laure; Tahani, A.
Peer reviewed

11. VOC emissions and protein expression mediated by the interactions between herbivorous insects and Arabidopsis plant. A review - Hien, Truong Thi Dieu; Heuskin, Stéphanie; Delaplace, Pierre; Francis, Frédéric; Lognay, Georges
Peer reviewed

12. Performances de productions de la poule locale kabyle - Ait kaki, Asma; Moula, Nassim
Peer reviewed

13. La migration de reproduction de la truite commune (Salmo trutta) dans le cours inférieur de la Haze, affluent de l'Ourthe à Esneux. Bilan de trois années d'études - Philippart, Jean-Claude; François, André; Ek, Barnabé; Ovidio, Michaël; Neus, Yvan; Rimbaud, Gilles

14. Gestion intégrée des risques naturels en forêt. L'exemple des tempêtes et risques sanitaires. - Riguelle, Simon

15. Chlorophyll: natural sources, extraction methods and application for textile industry - Miazek, Krystian; Remacle, Claire; Richel, Aurore; Goffin, Dorothée
Chlorophyll is a photosynthetic pigment available abundantly in microalgae and terrestrial plants. This pigment found applications in pharmaceutical, cosmetic and food products as a wound healing, antioxidant or coloring agent. Recent reports suggest that chlorophyll can also be used as a biomordant to enhance the dyeing process of textile products, but also as a textile dye with antimicrobial properties. In this presentation, different aspects of chlorophyll production are discussed. Firstly, numerous plant biomass types as potential sources of chlorophyll are presented. Subsequently, different methods for chlorophyll extraction and separation from plant biomass are described. Finally, possibilities of chlorophyll implementation into...

16. Carbon Cycling of Lake Kivu (East Africa): Net Autotrophy in the Epilimnion and Emission of CO2 to the Atmosphere Sustained by Geogenic Inputs - Borges, Alberto; Morana, C; Bouillon, S; Servais, P; Descy, J-P; Darchambeau, François
Peer reviewed

17. Metabolic reprogramming in transformed mouse cortical astrocytes: a proteomic study. - Bentaib, Azeddine; De Tullio, Pascal; Chneiweiss, Herve; Hermans, Emmanuel; Junier, Marie-Pierre; Leprince, Pierre
Peer reviewed

18. Reflections and proposals to assure quality in molecular diagnostics. - Raymaekers, M.; Bakkus, M.; Boone, E.; de Rijke, B.; El Housni, H.; Descheemaeker, P.; De Schouwer, P.; FRANKE, Sabine; Hillen, F.; Nollet, F.; Soetens, O.; Vankeerberghen, A.
Peer reviewed

19. Using milk spectral data for large-scale phenotypes linked to mitigation and efficiency - Soyeurt, Hélène; Vanlierde, Amélie; Vanrobays, Marie-Laure; Kandel, Purna Bhadra; Froidmont, Eric; Dehareng, Frédéric; Beckers, Yves; Dardenne, Pierre; Gengler, Nicolas
Even if producing milk efficiently has always been a major concern for producers, the direct environmental impact of their cows is becoming a novel one. Traits linked to this issue were identified as methane emission (CH4), dry matter intake (DMI) and feed efficiency (FE); however they are available on a small scale. Researches showed that CH4 could be predicted from milk mid-infrared (MIR) spectra, allowing large-scale recording at low cost. The main objective of this study was to show, using a modelling approach, that DMI and FE could be derived from milk MIR spectra. For that, knowledge of body weight...

20. Using milk spectral data for large-scale phenotypes linked to mitigation and efficiency - Soyeurt, Hélène; Vanlierde, Amélie; Vanrobays, Marie-Laure; Kandel, Purna Bhadra; Froidmont, Eric; Dehareng, Frédéric; Beckers, Yves; Dardenne, Pierre; Gengler, Nicolas
Even if producing milk efficiently has always been a major concern for producers, the direct environmental impact of their cows is becoming a novel one. Traits linked to this issue were identified as methane emission (CH4), dry matter intake (DMI) and feed efficiency (FE); however they are available on a small scale. Researches showed that CH4 could be predicted from milk mid-infrared (MIR) spectra, allowing large-scale recording at low cost. The main objective of this study was to show, using a modelling approach, that DMI and FE could be derived from milk MIR spectra. For that, knowledge of body weight...

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