Search results for " croissance"
showing 10 items of 20 documents
Effect of pulp cell number and assimilate availability on dry matter accumulation rate in a banana fruit (Musa sp. AAA group 'Grande Naine' (Cavendis…
2001
Fruit position on the bunch (inflorescence) is an important part of variability in banana fruit weight at harvest, as fruits at the bottom of the bunch (distal fruits) are approx. 40% smaller than those at the top (proximal fruits). In this study, the respective roles of cell number and cell filling rate in the development of pulp dry weight are estimated. To this end, the source/sink ratio in the plant was altered at different stages of fruit development. Leaf shading (reducing resource availability), bunch bagging (increasing sink activity by increasing fruit temperature), and bunch trimming (decreasing sink size by fruit pruning), applied once cell division had finished, showed that the …
Défenses antioxydantes, inflammation et immunomodulation, au cours du diabète gestationnel, dans les compartiments maternel, foetal et placentaire
2010
Gestational diabetes mellitus (GDM) is defined as ‘carbohydrate intolerance of variable severity with onset or first recognition during pregnancy’, irrespective to necessary treatment and its evolution in the post partum. GDM is associated with a number of complications/ pathologies both in mother and in their newborns, with short and long-term. In this study, we investigated the role of cytokines, adipokines and antioxidant status during GDM and macrosomia. Our study has demonstrated that these pathologies are associated with a perturbation in lipid metabolism, and antioxidant and immune status. GDM is linked to the down-regulation of adiponectin along with Th1 cytokines and upregulation o…
Analyse des sources des synergies de couts dans les operations de croissance externe horizontale
2015
Les motivations du recours aux opérations de croissance externe sont multiples et spécifiques à chaque entreprise. Dans cet article, nous nous intéressons à la motivation due aux effets des synergies de coûts résultant de la réunion des chaînes de valeur business de la cible et de l’acquéreur dans une opération horizontale. Des réponses théoriques seront apportées à deux questions liées aux effets de synergies de coûts : Que sont les synergies de coûts dans une opération de croissance externe de type horizontal ? Quelles sont les sources en cause dans ce type de synergies ?Mots clés: Synergie de coûts, Croissance externe, Ressources, Compétences, Création de valeur, Chaîne de valeur.
Comment le contrôle de gestion peut accompagner la croissance des PME innovantes ?
2017
International audience
Sur la croissance des variétés à géométrie bornée
2010
Nous survolons quelques résultats obtenus par les auteurs sur les variétés à géométrie bornée et croissance lineaire et sur les types de croissance possibles des variétés à géométrie bornée.
Valorization of rapeseed meal by solid state fermentation for an application in animal nutrition
2017
Solid state fermentation (SSF) is a biotechnological process particularly well adapted to the treatment of vegetable biomass. This technology adjustable to industrial scale, is adapted to current challenges in animal nutrition by developing fermented products in order to improve the quality of raw materials from a nutritional and functional point of view. The work presented in this thesis considers these issues using rapeseed meal from the oil crushing industry.A first screening study highlighted several fungal strains based on their growth performance and protein enrichment (total and digestible) of the substrate. Levels similar to those of soybean meal, the main protein source in animal n…
Stratégies d'influences et politiques de maîtrise de la croissance locale
2010
Over the last ten years, real estate prices have risen considerably and accordingly to most observers, this can at least partly be attributed to an insufficient supply, due to local growth control measures. This thesis tries to understand what motivates local authorities implementing such policies. Local politicians are considered as opportunistic and their decision is modelled as the result of a political struggle between different land-related interests. This game for influence mainly opposes the owners of developed and undeveloped land, who find allies amongst local business interests that might form growth or ideas machines. Our first model describes this struggle under different hypoth…
Differential effect of hypophysectomy and growth hormone treatment on hepatic glucuronosyltransferases in male rats: Evidence for an action at a pret…
1997
International audience; The influence of growth hormone (GH) on 4-nitrophenol, bilirubin, testosterone, androsterone and estrone glucuronidation activities was studied in fully activated male rat hepatic microsomes. Sham-operated and hypophysectomized animals were injected with two different dosages of GH, mimicking either the male or female GH secretion pattern. Half the animals received thyroxine and cortisol in concentrations chosen to compensate for the lack of thyroid hormones and glucocorticoids in hypophysectomized rats. GH induced a decrease in several glucuronidation activities: bilirubin glucuronidation in both sham-operated and cortisol/ thyroxine-treated hypophysectomized rats i…
Design, Development and Evaluation of a System for the Detection of Aerial Parts and Measurement of Growth Indices of Bell Pepper Plant Based on Ster…
2022
During the growth of plants, monitoring them brings much benefits to the producers. This monitoring includes the measurement of physical properties, counting plants leaves, detection of plants and separation of them from weeds. All these can be done different techniques, however, the techniques are favorable that are non-destructive because plant is a very sensitive creature that any manipulation can put disorder in its growth or lead to losing leaves or branches. Imaging techniques are of the best solutions for plants growth monitoring and geometric measurements. In this regard, in this project the use of stereo imaging and multispectral data was studied. Active and passive stereo imaging …
Timing and patterns of the ENSO signal in Africa over the last 30 years: insights from normalized difference vegetation index data.
2014
Abstract A more complete picture of the timing and patterns of the ENSO signal during the seasonal cycle for the whole of Africa over the three last decades is provided using the normalized difference vegetation index (NDVI). Indeed, NDVI has a higher spatial resolution and is more frequently updated than in situ climate databases, and highlights the impact of ENSO on vegetation dynamics as a combined result of ENSO on rainfall, solar radiation, and temperature. The month-by-month NDVI–Niño-3.4 correlation patterns evolve as follows. From July to September, negative correlations are observed over the Sahel, the Gulf of Guinea coast, and regions from the northern Democratic Republic of Congo…