Results 31 to 40 of about 429,888 (408)
Free-flight responses of Drosophila melanogaster to attractive odors [PDF]
, 2006 Many motile organisms localize the source of attractive odorants by following plumes upwind. In the case of D. melanogaster, little is known of how individuals alter their flight trajectories after encountering and losing a plume of an attractive odorant.
Budick, Seth A., Dickinson, Michael H.
core +1 more source
Contribuição para o aprimoramento de projeto, construção e operação de reatores UASB aplicados ao tratamento de esgoto sanitário – Parte 1: Tópicos de Interesse [PDF]
Revista DAE, 2018 O Brasil detém o maior parque de reatores anaeróbios do mundo, considerando-se a aplicação da tecnologia para o tratamento de esgoto sanitário. Apesar das reconhecidas vantagens dos reatores do tipo UASB, há problemas que têm impedido seu máximo ...
Carlos Augusto de Lemos Chernicharo +5 more
doaj +1 more source
Learning to predict target location with turbulent odor plumes [PDF]
arXiv, 2021 Animal behavior and neural recordings show that the brain is able to measure both the intensity of an odor and the timing of odor encounters. However, whether intensity or timing of odor detections is more informative for olfactory-driven behavior is not understood. To tackle this question, we consider the problem of locating a target using the odor it
arxiv
Odorous and pungent attributes of mixed and unmixed odorants [PDF]
Perception & Psychophysics, 1990 In order to explore functional properties of the olfactory and common chemical senses as well as their relation to the total nasal sensation experienced, various concentrations of two pungent odorants were presented alone and in the presence of different backgrounds of the other irritant. Stimuli comprised formaldehyde (at 1.0, 3.5, 6.9, and 16.7 ppm),
Susana M. Hernández +2 more
openaire +5 more sources
Linalool Odor-Induced Anxiolytic Effects in Mice
Frontiers in Behavioral Neuroscience, 2018 In folk medicine, it has long been believed that odorous compounds derived from plant extracts can have anxiolytic effects. Among them, linalool, one of the terpene alcohols in lavender extracts, has been reported to have the anxiolytic effects. However,
H. Harada +3 more
semanticscholar +1 more source
Contribuição para o aprimoramento de projeto, construção e operação de reatores UASB aplicados ao tratamento de esgoto sanitário – Parte 2: Tratamento preliminar, bombeamento e distribuição de vazão [PDF]
Revista DAE, 2018 A etapa de tratamento preliminar é fundamental para o adequado condicionamento do esgoto antes de sua entrada nos reatores UASB. Nesta Nota Técnica objetiva-se discorrer sobre os principais problemas, suas respectivas origens e os possíveis ...
Thiago Bressani Ribeiro +4 more
doaj +1 more source
A Geometric Framework for Odor Representation [PDF]
arXiv, 2022 We present a generalized theoretical framework for olfactory representation and plasticity, using the theory of smooth manifolds and sheaves to depict categorical odor learning via distributed neural computation. Beginning with the space of all possible inputs to the olfactory system, we develop a dynamic model for odor learning that culminates in a ...
arxiv
Forensic Science International, 2012 This study, the third of a series on the odor signature of human decomposition, reports on the intermittent nature of chemical evolution from decomposing human remains, and focuses primarily on headspace analysis from soil associated with older human remains (10-60+ years) from different environments around the globe. Fifty grams of soil were collected
openaire +3 more sources
Odor Threshold Determination of 53 Odorant Chemicals [PDF]
Journal of Environmental Conservation Engineering, 1969 In order to assist in assessing potential odor problems arising from chemical manufacturing operations, the odor thresholds of 53 commercially important odorant chemicals have been determined using a standardized and defined procedure. The odor threshold data previously available have shown wide variation reflecting the diversity of procedures and ...
N. Barnard +2 more
openaire +4 more sources
Odor identity coding by distributed ensembles of neurons in the mouse olfactory cortex
eLife, 2017 Olfactory perception and behaviors critically depend on the ability to identify an odor across a wide range of concentrations. Here, we use calcium imaging to determine how odor identity is encoded in olfactory cortex.
Benjamin Roland +4 more
semanticscholar +1 more source