Search results for "Smell"
showing 10 items of 123 documents
Sensory and chemical drivers of wine minerality aroma: An application to Chablis wines
2017
The goal of this work was to evaluate the effect of vineyard position on the minerality of wines and to establish relationships between minerality scores, sensory descriptors and chemical composition. Sensory analyses included minerality rating and free description performed by wine professionals under two conditions: orthonasal olfaction alone and global tasting. Chemical characterization included analysis of major and minor volatile compounds, volatile sulphur compounds, mercaptans, metals, anions and cations. Results showed a significant effect of the river bank on wine minerality scores only in the orthonasal olfaction condition, samples from the left being more mineral than those from …
Development of the ETOC : a European test of olfactory capabilities
2003
A number of smell tests designed to evaluate human olfactory capabilities have been published, but none have been validated cross-culturally. The aim of this study was therefore to develop a reliable and quick olfactory test that could be used to evaluate efficiently the olfactory abilities of a European population. This test, named ETOC and based on a combination of a supra-threshold detection task and an identification task, was designed to be a cross-cultural tool that would measure the decline in olfactory performance with ageing. Two versions of the ETOC, one easy and one less easy, were used to test the olfactory performance of European citizens in three countries (France, Sweden and …
A la découverte des odeurs
2019
Often taken for granted, the sense of smell has seldom been discussed or understood. However, since the start of the 20th Century, studies in this area have grown exponentially and today there is a greater understanding of the olfactory system – at both structural and functional levels. Scientists now concern themselves with questions about the holistic nature of our sense of smell and are investigating the role of odors in interpersonal relations, in food intake processes, in the diagnosis of certain illnesses, and many other areas. The beginnings of this knowledge are as fascinating as they are abundant and numerous disciplines are involved: psychology, physiology, genetics, neuroscience,…
Smelling in the old age
2017
Several authors argued that ageing is accompanied by an impairment of olfactory abilities, i.e., the ability to perceive an odour or a taste. However, beyond this overall effect of age on chemosensory abilities, ageing is accompanied by variability in olfactory performance: the decline of odour perception with age is not uniform across odorants neither across elderly individuals. Decline in odour perception may not be inevitable to the aging individual and that factors secondary to aging, such as poor health status or cognitive decline, may contribute to deficits in odour detectability beyond the age effect per se.
Rapid odorant release in mammalian odour binding proteins facilitates their temporal coupling to odorant signals.
2010
; We have measured the effect of rat odorant-binding protein 1 on the rates of ligand uptake and liquid-to-air transfer rates with a set of defined odorous compounds. Comparison of observed rate constants (k(obs)) with data simulated over a wide range of different kinetic and thermodynamic regimes shows that the data do not agree with the previously held view of a slow off-rate regime (k(off) <0.0004 s(-1)). We propose that a rapid koff would be a necessary requirement for such a system, since slow odorant-release rates would result in significant decorrelation between the olfactory world and odour perception. (c) 2010 Elsevier Ltd. All rights reserved.
Mouse olfactory sensory neurons' plasticity induced by postnatal odorant exposure: anatomical, molecular and physiological consequences
2012
Mouse olfactory sensory neurons' plasticity induced by postnatal odorant exposure: anatomical, molecular and physiological consequences. 8. FENS forum of neuroscience
Effect of oxidoreduction potential on aroma biosynthesis by lactic acid bacteria in nonfat yogurt
2011
; The aim of this study was to investigate the effect of oxidoreduction potential (Eh) on the biosynthesis of aroma compounds by lactic acid bacteria in non-fat yogurt. The study was done with yogurts fermented by Lactobacillus bulgaricus and Streptococcus thermophilus. The Eh was modified by the application of different gaseous conditions (air, nitrogen, and nitrogen/hydrogen). Acetaldehyde, dimethyl sulfide, diacetyl, and pentane-2,3-dione, as the major endogenous odorant compounds of yogurt, were chosen as tracers for the biosynthesis of aroma compounds by lactic acid bacteria. Oxidative conditions favored the production of acetaldehyde, dimethyl sulfide, and diketones (diacetyl and pen…
ScrumBut as an Indicator of Process Debt
2022
Technical debt analysis is used to detect problems in a codebase. Most technical debt indicators rely on measuring the quality of the code, as developers tend to induce recurring technical debt that emerges along with evolution cycles. This debt can emerge when project pressure leads to process deviations, for instance. In agile methods like Scrum, such deviations are commonly known as ScrumButs (like Scrum but …), which can be considered as a form of process debt. In this paper, we investigate two recurring signs of process debt (i.e. code smells and anti-patterns) caused by Scrumbuts. Our contribution investigates typical ScrumBut practices found in agile projects in one company and we re…
Symbolika odoru w "Pachnidle" i "Gołębiu" Patricka Süskinda
2012
Symptomatic bodies: reading and writing the odor of sanctity in French culture (1868-1901)
2021
Using examples from novels by the Goncourt brothers, Huysmans, Zola and Lemonnier, this paper explores the literary representation of the odor of sanctity in regard to the main epistemological discourses of the second half of the 19th century. In this deeply anticlerical intellectual context, the Christian myth of the odor of sanctity is analyzed by medical professionals and scientists as a pathological phenomenon. Although taking into account the divergent aesthetics of the selected authors, the study focuses mostly on the ambiguity literary texts maintain between the unspeakable experience of religious ecstasy and a symptomatic vision of the body.