Search results for "GPR"
showing 10 items of 1092 documents
A novel prototype to closely mimic mastication for in vitro dynamic measurements of flavour release
2005
International audience; Flavour release during eating of a food depends upon many parameters that can hardly be managed. In-vivo measurements by the APCI MS-nose method allowed temporal sensory evaluation and flavour release data to be directly correlated, but several limitations have frequently been reported. These were: high inter-individual variability, low repeatability of measurements, and weak experiment throughput due to panellists' exhaustion. To overcome most of these limitations, the use of an artificial mouth for online mesurement of flavour release is recommended. However, the systems used in previous reports were limited in terms of reproducing in-vivo oral functions and parame…
(Z)-dodec-3-en-1-ol, a novel termite trail pheromone identified after solid phase microextraction form Macrotermes annandalei
2001
International audience
Libération et perception de composés de la flaveur au cours de la mastication de bases fromagères
2005
National audience; Relier la libération de composés de la flaveur (arôme et saveur) en bouche à la perception de la flaveur est encore une tâche difficile. La libération de flaveur pendant la mastication et l’ingestion d’un aliment dépend de plusieurs facteurs tels que la composition et la texture de l’aliment, les paramètres de salivation et de mastication, la nature des composés de la flaveur. L’objectif de l’étude est de tenter de relier la libération de composés volatils et non volatils, et la perception de la flaveur en prenant en compte les paramètres respiratoires, masticatoires et salivaires au cours de la mastication d’une base fromagère. La mesure de paramètres physiologiques orau…
Changes in meibomian fatty acids and ocular surface in patients with meibomian gland dysfunction after minocycline treatment
2008
International audience; Purpose:Tear film lipid layer (TFLL) is a very structured layer with essential functions. Its structure is highly dependent on chemical and physical characteristics of lipids composing the TFLL We previously published alterations in the composition of TFLL in patients suffering from meibomian gland dysfunction (MGD). Branched chain fatty acids (BCFA) were significantly increased, suggesting that BCFA may be associated with the disease. The aim of this study was to evaluate the effect of a treatment by oral minocycline associated to lid hygiene versus lid hygiene only on changes in ocular surface abnormalities and in meibomian fatty acid composition in patients suffer…
New insight into the genetics of age-related macular degeneration in connection with lipid metabolism
2010
Evaluation of: Zerbib J, Seddon JM, Richard F et al. rs5888 variant of SCARB1 gene is a possible susceptibility factor for age-related macular degeneration. PLoS ONE 4(10), e7341 (2009).Age-related macular degeneration (AMD) is the leading cause of visual loss in elderly populations of Western countries. According to demographic forecasts, and owing to the improvement in life expectancy, the number of people suffering from this pathology is expected to dramatically increase in the near future, thereby becoming a significant socioeconomic burden. There has been great progress in defining risk factors for AMD over the last few decades. Beyond advanced age, environmental and genetic factors ha…
A global Canopy Water Content product from AVHRR/Metop
2020
Abstract Spatially and temporally explicit canopy water content (CWC) data are important for monitoring vegetation status, and constitute essential information for studying ecosystem-climate interactions. Despite many efforts there is currently no operational CWC product available to users. In the context of the Satellite Application Facility for Land Surface Analysis (LSA-SAF), we have developed an algorithm to produce a global dataset of CWC based on data from the Advanced Very High Resolution Radiometer (AVHRR) sensor on board Meteorological–Operational (MetOp) satellites forming the EUMETSAT Polar System (EPS). CWC reflects the water conditions at the leaf level and information related …
DEVELOPMENT OF CAREER MANAGEMENT SKILLS OF NEW PODOLOGISTS FOR WORK IN A MULTICULTURAL ENVIRONMENT
2017
Because of the affections of globalization process and because of the changes in social-political situation in world, multicultural environment in Latvia is also changing. Latvia becomes more and more attractive for foreign citizens from Europe the same as for citizens from elsewhere, that choose to settle down here permanently or only for a period of time. That is considerable challenge for education and healthcare.
 Workers in field of medicine, and podologs as well, must guide their professional carreer development in mutable multicultural environment. That is why needs of joung specialists are changing too-with knowledge, skills and competencies necessary in proffession, specialist…
Inflammatory cytokines decrease viability and alter ganglioside profile in retinal pigment epithelium cells
2013
Purpose Early stages of Age related Macular Degeneration (AMD) are characterized by dysfunction and degeneration of the retinal pigment epithelium (RPE) cells, which participate in the death of the overlying photoreceptors ultimately leading to loss of vision. Gangliosides (GG) make a wide and heterogeneous family of sialic-acid-containing glycosphingolipids, composed of a sugar chain branched on a ceramide. They are major components of cellular membranes, particularly abundant in the brain and nervous tissue, including retina. While their developmental and neuroprotective actions have been demonstrated, their precise role in retina’s function and its pathologies is still poorly understood.…
Modelling the Reverse ElectroDialysis process with seawater and concentrated brines
2012
Technologies for the exploitation of renewable energies have been dramatically increasing in number, complexity and type of source adopted. Among the others, the use of saline gradient power is one of the latest emerging possibilities, related to the use of the osmotic/chemical potential energy of concentrated saline solutions. Nowadays, the fate of this renewable energy source is intrinsically linked to the development of the pressure retarded osmosis and reverse electrodialysis technologies. In the latter, the different concentrations of two saline solutions is used as a driving force for the direct production of electricity within a stack very similar to the conventional electrodialysis …
Understanding retention and metabolization of aroma compounds using an in vitro model of oral mucosa.
2020
International audience; The mechanism leading to aroma persistence during eating is not fully described. This study aims at better understanding the role of the oral mucosa in this phenomenon. Release of 14 volatile compounds from different chemical classes was studied after exposure to in vitro models of oral mucosa, at equilibrium by Gas-Chromatography-Flame Ionization Detection (GC-FID) and in dynamic conditions by Proton Transfer Reaction- Mass Spectrometry (PTR-MS). Measurements at equilibrium showed that mucosal hydration reduced the release of only two compounds, pentan-2-one and linalool (p < 0.05), and suggested that cells could metabolize aroma compounds from different chemical fa…