volatile odorant

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• OBP2A — Odorant binding protein 2A Identifiers Symbols OBP2A; OBP; OBP2C; OBPIIa; hOBPIIa External IDs …   Wikipedia

• Olfaction — Human olfactory system. 1: Olfactory bulb 2: Mitral cells 3: Bone 4: Nasal epithelium 5: Glomerulus (olfaction) 6: Olfactory receptor cells Olfaction (also known as olfactics; adjectival form: olfactory ) is the sense of smell. This sense is… …   Wikipedia

• chemoreception — chemoreceptive /kee moh ri sep tiv, kem oh /, adj. /kee moh ri sep sheuhn, kem oh /, n. the physiological response to chemical stimuli. [1915 20; CHEMO + RECEPTION] * * * Sensory process by which organisms respond to external chemical stimuli, by …   Universalium

• Odor — Aroma redirects here. For other uses, see Aroma (disambiguation). Allegory of the senses by Jan Brueghel the Elder, Museo del Prado An odor or odour is caused by one or more volatilized chemical compounds, generally at a very low concentration,… …   Wikipedia

• essence — [ esɑ̃s ] n. f. • 1130; lat. philos. essentia I ♦ Philos. Ce qui constitue la nature d un être. 1 ♦ Philos. (opposé à accident) Fond de l être, nature intime des choses. ⇒ nature, substance. L essence des choses. L essence humaine. « Nous ne… …   Encyclopédie Universelle

• Olfactory receptor — Olfactory receptors expressed in the cell membranes of olfactory receptor neurons are responsible for the detection of odor molecules. Activated olfactory receptors are the initial player in a signal transduction cascade which ultimately produces …   Wikipedia

• odeur — [ ɔdɶr ] n. f. • fin XIVe; odor XIIe; lat. odor ♦ Émanation volatile, caractéristique de certains corps et susceptible de provoquer chez l homme ou chez un animal des sensations dues à l excitation d organes spécialisés. ⇒ effluve, émanation,… …   Encyclopédie Universelle

• petroleum refining — Introduction  conversion of crude oil into useful products. History Distillation of kerosene and naphtha       The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …   Universalium

• Nobel Prizes — ▪ 2009 Introduction Prize for Peace       The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …   Universalium

• Butanethiol — IUPA …   Wikipedia

• sensory reception, human — Introduction  means by which humans react to changes in external and internal environments.   Ancient philosophers called the human senses “the windows of the soul,” and Aristotle described at least five senses sight, hearing, smell, taste, and… …   Universalium