ORBi Open Repository and Bibliography
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.
Etude de la population d’hippopotames (Hippopotamus amphibius L.) de la rivière Mouena Mouele au Parc National du Loango-Sud (Gabon) - Michez, Adrien
Le Parc National du Loango ainsi que les 12 autres parcs nationaux gabonais créés en 2002 constituent une expérience sans précédent dans le domaine de la conservation en Afrique Centrale. La valorisation de ceux-ci, notamment scientifique, est une condition sine qua non à leur pérennisations dans le paysage gabonais.
Le présent travail est le fruit de l’analyse d’une série de données récoltées sur l’hippopotame et son milieu au Parc National du Loango-Sud, plus particulièrement sur la population basée dans la rivière Mouena Mouele.
Trois populations distinctes mais non-isolées ont été identifiées pour le sud du parc. Dans un rayon de...
Contribution to the study of the resistance to drying of Pseudomonas fluorescens - Mputu Kanyinda, Jean-Noël
The objective of this thesis is to study the resistance to drying of Pseudomonas fluorescens. Freeze-drying is the most suitable method for drying P. fluorescens. However, freeze-drying induced loss of cell viability. This loss of viability is mainly due to membrane rupture, temperature and oxidation of fatty acids, membrane proteins and glutathione. For this purpose, the use of protective compounds during freeze-drying has allowed us to obtain a powder having a high viability. We then studied the impact of these protective compounds, oxygen and storage temperature on the viability of P. fluorescens during storage. Analyses of fatty acids, proteins, glutathione...
On the Relevance of Sophisticated Structural Annotations for Disulfide Connectivity Pattern Prediction - Becker, Julien; Maes, Francis; Wehenkel, Louis
Disulfide bridges strongly constrain the native structure of many proteins and predicting their formation is therefore a key sub-problem of protein structure and function inference. Most recently proposed approaches for this prediction problem adopt the following pipeline: first they enrich the primary sequence with structural annotations, second they apply a binary classifier to each candidate pair of cysteines to predict disulfide bonding probabilities and finally, they use a maximum weight graph matching algorithm to derive the predicted disulfide connectivity pattern of a protein. In this paper, we adopt this three step pipeline and propose an extensive study of the relevance...
The coping strategies to fight against the food insecurity in the Republic of Niger - Andres, Ludovic; Lebailly, Philippe
During the last decade, the Niger’s population has been affected by the food crisis (2001, 2004-2005, 2008, 2010-2011). Each year, she is subjected to many structural and temporary shocks. The structural shocks are caused by the chronicle difficulties (income) while the temporary shocks are tied at the "natural" disasters such as the hydrometeorological disasters, demographic crisis. The risk that the people fall in a state of food insecurity because of structural and temporary shocks is characterized by food vulnerability. The food vulnerability is defined as “the analysis of coping strategies and reactions faced with the structural or/and temporary shocks, if...
Food provisioning and agonistic behaviours in commensal long-tailed macaque (Macaca fascicularis) at Uluwatu Temple, Bali (Indonesia) - Brotcorne, Fany; Huynen, Marie-Claude; Wandia, I. Nengah
Most previous research on nonhuman primates reported increased levels of agonistic behaviors associated with food provisioning by humans. To further investigate the permanence of this effect of increased social competition in long-term commensal-living primates, we examined the immediate impact of food provisioning on agonistic behavior rates in a commensal population of long-tailed macaques (Macaca fascicularis) at Uluwatu Temple, Bali (Indonesia). We compared proportions of agonistic behaviors between various food provisioning levels defined by the absence/presence and the quantity of food provisioned. We collected data using focal and scan sampling methods during a four-month study period (June to October 2010). We...
Angiogenesis by Fibroblast Growth Factor 4 Is Mediated through an Autocrine Up-regulation of Vascular Endothelial Growth Factor Expression - Deroanne, Christophe; Hajitou, Amin; Calberg-Bacq, Claire-M.; Nusgens, Betty; Lapière, Charles M.
The infection of normal mouse mammary EF43 cells by a retroviral vector carrying either Fgf-3 (EF43.Fgf-3) or Fgf-4 (EF43.Fgf-4) cDNA resulted in the transformation of cells displaying different tumorigenic potentials in nude mice (A. Hajitou and C-M. Calberg-Bacq, Int. J. Cancer, 63: 702-709, 1995). EF43.Fgf-4 produced rapidly developing tumors at all sites of inoculation, whereas EF43.Fgf-3 produced slowly growing tumors only in the mammary fat pad. Cells infected with the vector carrying the selection gene alone (EF43.C) were not tumorigenic. The angiogenic properties of these cells were tested in an in vitro angiogenesis model using human umbilical vein endothelial cells...