Search results for "SME"
showing 10 items of 11064 documents
The Role of Hydrophobic Mismatch on Transmembrane Helix Dimerization in Living Cells
2019
Volatile compounds produced by the ligninolytic fungus Phlebia radiata Fr. (Basidiomycetes) and influence of the strain specificity on the odorous pr…
1989
Abstract The odorous volatile compounds produced by 3 strains (out of 25 strains tested) of Phlebia radiata Fr. were investigated on six synthetic media and identified by GC-MS analysis. One of the 3 strains was odourless. Aromatic primary alcohols and a sesquiterpenic alcohol, α-bisabolol, were the most abundant metabolites for both of the other strains, which exhibited similar flavours and a similar gas chromatographic profile.
Stimulus Perception in Bacterial Signal-Transducing Histidine Kinases
2006
SUMMARY Two-component signal-transducing systems are ubiquitously distributed communication interfaces in bacteria. They consist of a histidine kinase that senses a specific environmental stimulus and a cognate response regulator that mediates the cellular response, mostly through differential expression of target genes. Histidine kinases are typically transmembrane proteins harboring at least two domains: an input (or sensor) domain and a cytoplasmic transmitter (or kinase) domain. They can be identified and classified by virtue of their conserved cytoplasmic kinase domains. In contrast, the sensor domains are highly variable, reflecting the plethora of different signals and modes of sens…
Entre éducation populaire et propagande syndicale : les cours radiophoniques de la CGT sous le Front Populaire
2011
Notre article se propose d’aborder une expérience originale d’éducation populaire, souvent citée mais finalement assez peu étudiée : les cours radiodiffusés du Centre confédéral d’éducation ouvrière de la CGT, durant le Front populaire. Le CCEO qui, dès sa création en 1933, s’est voulu un outil de démocratisation du savoir va en effet avoir l’opportunité d’accéder à un média de masse à partir de janvier 1937 et d’élargir son audience. Nous verrons donc comment pendant trois ans, à travers l’émission La Voix de la CGT, le syndicat a investi les ondes, fait l’apprentissage des exigences particulières de l’exercice radiophonique et s’est efforcé de concilier mission éducative et tentation prop…
Impact of the information provided to consumers on their willingness to pay for Champagne : comparison with hedonic scores
2002
International audience; L'étude a été effectuée afin de comparer deux mécanismes destinés à révéler les préférences des consommateurs : une enchère Vickrey qui mesure la disposition à payer, et un test hédonique classique. A travers ces deux méthodes, l'objectif était d'estimer les effets respectifs des caractéristiques sensorielles et de l'information externe sur l'évaluation de cinq champagnes brut non millésimés. Cent-ving-trois consommateurs ont été assignés au hasard aux deux groupes et ont utilisé l'une des méthodes. Quelle que soit la méthode, ils ont évalué les champagnes à l'aveugle, puis sur la base d'une présentation des bouteilles et, enfin, après l'observation de la bouteille e…
Risk tables for discrimination tests
1993
Abstract Duo-trio and triangle test are often used in the food industry for the purpose of declaring two products non-distinguishable. In that situation, it is much more important to control the power of the test rather than the type 1 error risk. This paper makes available by e-mail a SAS ® macro, called BINRISKS, for computing type 1 and type 2 risks for any one-tailed binomial test and for any level of the percentage above chance to be detected. Using this macro, two sets of tables have been compiled. The first table includes for any total number of responses below 50, for any number of correct responses and for three levels of the percentage above chance to be detected, the correspondin…
P073 L’obésité diminue, de manière réversible, la préférence pour les lipides alimentaires chez la souris
2013
International audience; Introduction et but de l’étude. – Au cours des dernières années, il a été suggéré l’existence d’un lien étroit entre la détection oro-sensorielle des lipides alimentaire, la régulation de la prise alimentaire et l’IMC. Toutefois, les mécanismes affectant la sensibilité aux lipides ainsi que l’éventuelle implication directe de l’obésité restent mal connus.
Dynamics of liking for flavoured crackers: Test of predictive value of a boredom test
1998
Abstract The principal aim of this study was to compare two experimental conditions for measuring the effect of repeated consumption on liking: a laboratory boredom test and a home use test. Another goal was to investigate the impact of perceived familiarity, appropriateness and complexity on the dynamics of liking. Two groups of consumers were recruited, one for each condition. Five variants of salty crackers, each with a different flavour, were tested. The laboratory condition did not show any difference in the dynamics of liking among the flavours. The home condition revealed a significant increase in liking for only one flavour. This increase could not be related to the level of complex…
2020
The transfer of metabolites through the mitochondrial membranes is a vital process that is highly controlled and regulated by the inner membrane. A variety of metabolites, nucleotides, and cofactors are transported across the inner mitochondrial membrane (IMM) by a superfamily of membrane transporters which are known as the mitochondrial carrier family (MCF) or the solute carrier family 25 (SLC25 protein family). In humans, the MCF has 53 members encoded by nuclear genes. Members of the SLC25 family of transporters, which is the largest group of solute carriers, are also known as mitochondrial carriers (MCs). Because MCs are nuclear-coded proteins, they must be imported into the IMM. When c…
Vanillin cell sensor
2007
Our project for iGEM 2006 consisted of designing a cellular vanillin biosensor. We used an EnvZ -E. coli strain as a chassis, and constructed two different devices: a sensor and an actuator, assembled using OmpR-P as a standardised mediator. The sensor device contained a computation- ally designed vanillin receptor and a synthetic two-component signal transduction protein (Trz). The receptor protein was based on a ribose-binding protein as scaffold. The Trz was built by fusion of the periplasmic and transmembrane domains of a Trg protein with an EnvZ kinase domain. When the receptor complex binds Trg, an allosteric motion is propagated to the cyto- plasmic EnvZ kinase domain, resulting in a…