Search results for "Real"

Impact of a non-consciously perceived odour on subsequent food choices

2013

Poster (1 page) ; http://www.pangborn2013.com/; International audience; Although people were initially considered as entirely conscious of the motivations driving their behaviour and choices, current research in psychology suggests that a significant part of choices and decision-making is influenced by unconscious processes (Bargh, & Chartrand, 1999; Dijksterhuis et al., 2005). To study the unconscious processes involved in food choice, we used the priming paradigm. In a first experiment, we showed that non-consciously perceived fruity odours impacted intentions of food choices (on a menu card), guiding participants toward more fruit and/or vegetable (Gaillet et al., under review). The pres…

Comparison of immersive room and virtual reality, through the consumption episode "Eating a sandwich in a park"

2020

International audience; Conventional approaches for consumers’ tests, CLT and HUT, lead respectively to a high either internal or external validity. In recent years, several immersive approaches have been developed to achieve both internal and external validity at the same time, i.e. environments close to actual consumption context while keeping parameters under control. Virtual reality (VR) is one of the most promising one.In this study, we assess two immersive strategies in terms of internal and external validity for a consumption episode “having a sandwich for lunch in a park”. The two experimental conditions were an immersive room (N = 57, Fig. 1) and a VR environment (N = 55, Fig. 2). …

Comparison of sensory visual properties of food products in real and virtual conditions

2018

International audience; As Virtual Reality usages expand, as professional tools in one hand and as gaming devices in another hand, the use of these technologies for consumer science and sensory science is more and more interesting to be investigated. Before using Virtual Reality to evaluate new products, it seems necessary to check the similarities and differences of the visual attributes of products in real and in virtual. All the experiments were conducted with Unity software and HTC Vive Helmet. First, we designed virtual sensory booths, similar to the booths of AgroParisTech sensory Lab. Then, we choose a set of real products (cookies from the market) and digitalize them. At last, virtu…

Effect of extrusion on the anti-nutritional factors of food products: An overview

2017

International audience; Edible plant seeds such as cereals, legumes and nuts contain substantial amounts of nutrients including proteins, carbohydrates, minerals, vitamins, and dietary fibers. However, the bioavailability of these nutrients in humans or animals is relatively low, particularly when they are consumed in their unprocessed or raw form. One of the major factors that contribute to a lower nutritional value of legumes and cereals is the presence of naturally-occurring anti-nutritional factors (ANFs, e.g. phytate, tannins and enzyme inhibitors) that indirectly decreasing the bioavailability status of minerals. Fortunately, these ANFs can be modified or reduced through different pro…

Management of diabetic macular edema with visual impairment in real-life practice in France: findings from the cross-sectional BOREAL DME study

2016

International audience

Développement et évaluation d'une méthode fondée sur la PCR temps réel pour la caractérisation des bioaérosols : application au groupe des actinomycè…

2013

Actinomycetes are ubiquitous bacteria and some can be potentially pathogen for Humans in the air of some working areas. It’s notably the case in composting plants where bacteria concentrations can reach high values. Workers exposure to these inhalable bioaerosols can be source of various diseases (hypersensitivity pneumonitis notably). Although this problem is admitted, bibliography reveals a lack of knowledge about risk assessment: currently, none global method for bioaerosols sampling and analysis is standardized. So much that neither dose-effects relationship for most of these bacteria, nor Threshold Limit Value exists. Traditional methods, that are used, have some drawbacks (concentrati…

Quantification of denitrifiers by real-time PCR

2007

Managing crop nitrogen and soil dynamics

2001

Despite extensive research grain legume seed protein content and yield remains low and unstable. Grain legume performances in the cropping system are highly dependent upon N nutrition of the crop relying on root assimilation of soil N in combination with symbiotic fixation of atmospheric dinitrogen. In order to improve the competitive ability of grain legumes for growth resources an enlargement of the crop surface area production in combination with a judicious management of both inputs and N acquisition (and allocation to the harvested organs) is needed. Competitive ability implies to take into account economical constraints and the crop production effect on the environment, reducing the a…

Comparative analysis of PR gene expression in tomato inoculated with virulent Fusarium oxysporum f. sp. lycopersici and the biocontrol strain F. oxys…

2008

Non-pathogenic strains of Fusarium oxysporum have the capacity to protect plants against wilt induced by pathogenic strains of F. oxysporum. Among the mechanisms involved in this protection, induced systemic resistance has been demonstrated by using a split-root method. The aim of this study was to follow the accumulation kinetics of transcripts encoding 5 PR proteins in roots and leaves of tomato inoculated with a pathogenic or a protective strain in comparison to non-inoculated control. Moreover quantification of transcripts was assessed by real-time RT-PCR in cell cultures inoculated with the pathogenic or the protective strain. Results showed a lower expression of PR encoding genes in t…

Quantifying cereal-reaping microwear on flint tools : an experimental approach

2016

International audience; From the earliest Neolithic in the Near East to the last Chalcolithic cultures in Western Europe, certain flint tools have been used as sickles to harvest cereals. Such harvesting tools can be identified through use-wear analyses, because cutting herbaceous plants produces specific wear-traces on the working edge of flint blades. The aim of this work is to explore harvesting-driven microwear variability and, more particularly, intensity of use as a governing factor. To achieve this objective, an experiment was designed consisting in the production of flint replicas to be used as harvesting tools, in various controlled conditions. A simple, cost-effective method of qu…