Search results for "Dans"
showing 10 items of 275 documents
Pourquoi le fer est indispensable à notre santé
2022
On ne s’en rend généralement pas compte, mais le fer est un atome essentiel à la vie. Chimiquement parlant, il appartient à la famille des métaux dits « de transition », capables d’échanger facilement des électrons : pour traduire cela en termes simples, cela signifie que cet atome donne aux molécules biologiques auxquelles il est attaché une grande réactivité et leur confère des propriétés chimiques importantes (d’oxydo-réduction par exemple) et, par voie de conséquence, des activités biologiques essentielles...
Initial dominance of salty taste increases saltiness in heterogeneous food products
2012
In the worldwide context of healthy diet, a reduction of sodium intake is recommended. However, low-salt foods are poorly appreciated by consumers due to flavour drawbacks. Among the various strategies under investigation to compensate for salt reduction at a sensory level, the combination of aroma-taste interactions and tastants heterogeneous distribution is a promising one. This study aimed at examining the effectiveness of such a strategy throughout the full eating experience. To do so, Temporal Dominance of Sensation (TDS) was used to assess the saltiness enhancement in hot model snacks specifically designed to vary in salt and aroma distribution. According to an optimized experimental …
Heterogeneous salt distribution: A way to enhance saltiness without loss of acceptability
2012
Health authorities recommend a drastic reduction of salt content in food products. However, such reduction leads to a decrease in both saltiness and acceptability. In a series of experiments, we investigated a new strategy to compensate for salt reduction in food. We assessed the effect of heterogeneous salt distribution on saltiness enhancement, and food acceptability. First, we examined whether salt distribution could affect sodium perception in a salty baked food. This model food is composed of two layers: a cream-based and a cereal-based layer. Three salt levels were tested within each layer, according to a full factorial design. A panel of consumers (n=87) evaluated saltiness of each f…
Electronic implementation of a non-linear oscillator subjected to noise : application to the modeling of neuronal information coding
2011
We study the nonlinear FitzHugh-Nagumo model witch describes the dynamics of excitable neural element. It is well known that this system exhibits three different possible responses. Indeed, the system can be mono-stable, oscillatory or bistable. In the oscillatory regime, the system periodically responds by generating action potential. By contrast, in the mono-stable state the system response remains constant after a transient. Under certain conditions, the system can undergo a bifurcation between the stable and the oscillatory regime via the so called Andronov-Hopf bifurcation. In this Phd thesis, we consider the FitzHugh-Nagumo model in the stable state, that is set near the Andronov-Hopf…
Étude de la biologie d'une messicole en régression: le bleuet (Centaurea cyanus L.)
2011
Agroecosystems are currently experiencing high biodiversity loss, in particular among the plant species specifically adapted to this habitat. This decline results from cropping systems that have been intensified in Western Europe since the 1950s. The cornflower (Centaurea cyanus L.), considered as emblem of the flora associated with traditional cereals, appears as a species that may be at risk and should be monitored. Indeed, cornflower can serve as a host to predators of crop pests and is strongly attractive for the pollinators. This study examines the biological factors that could potentially cause the decline of this species: spatial distribution, potential for growth, population's genet…
Modeling and energy optimization of the operative parts of an air assisted drill
2016
In the context of sustainable farming, the optimization of the energy costs of agricultural operations allows shorter working times and high quality of the agricultural operations. This question relates particularly to the seeding. This operation one is decisive for the quality of the future harvest. The modern high capacity seed drills must be compatible with all the constraints. The main goal of this PhD thesis is thus to develop an innovative methodology, integrating the modeling tools, in order to reduce the energy consumption of the heavy seeding equipment. Thus, we explored four key aspects concerning air seed drill design: maneuverability of poly-articulated seed drills; establishmen…
La biopiraterie et le commerce des produits pharmaceutiques face aux droits des populations locales sur leurs savoirs traditionnels
2006
Collection des travaux du Credimi
L'application dans le temps du décret du 13 janvier 2011, entré en vigueur le 1er mai 2011, déjà des contradictions de jurisprudence !
2013
International audience; (Paris, pôle 1, ch. 1, 24 février 2013, État du Cameroun c/ SPRL Projet Pilote Garouse, inédit ; Paris, ord. cons. mise en état, 8 mars 2012, Rev. arb. 2012. 399, note Ch. Jarrosson et J. Pellerin, P. Constante dit Pierre Cardin ; Paris, ord. cons. mise en état, 3 mai 2012, Rev. arb. 2012. 401, note Ch. Jarrosson et J. Pellerin, SAS Alizée ; Civ. 1re, 26 juin 2013, n° 12-22.2013, Soc. Kettal c/ JC. Somprou, inédit)
De l'application immédiate de la loi du 15 mai 2001 modifiant l'article 2061 du code civil : le débat reste ouvert !
2004
International audience; (Orléans 18 mars 2004, Rev. arb. 2004.391, note D. Bureau, Sa Consortium de prévoyance et de gestion c/ La Mutuelle de France)
Respect du contradictoire et respect de « l'économie du contrat » par les arbitres jugeant en amiable composition
2018
International audience; (Civ. 1re, 12 juill. 2017, n° 16-18.328, FD, Soc. La Briouzaine c/ M. Christian B et autres, inédit)