Odor Perception
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Comunicação olfatória no roedor social Trinomys yonenagae (Caviomorpha: Echimyidae) / Olfactory communication in the social rodent Trinomys yonenagae (Caviomorpha: Echimyidae)
Vários aspectos do relacionamento entre mamíferos, como pareamento sexual e relações de grupo, requerem o reconhecimento de indivíduos. Sinais químicos são fundamentais nesse contexto, pois permitem a identificação individual e sexual. Roedores são animais que apresentam um senso olfatório muito desenvolvido e o empregam em sua comunicação socia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2011
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2. Implicações do odor na percepção e escolha de parceiro
Why are we attracted to some people but not to other ones? How is this attraction established? Which signs are characteristic of a good partner? These and many other questions concerning how mate attraction and mate selection work out among humans have been intriguing behavioral scientists. It is well-known that beauty indicates something about a potential m
Publicado em: 2007
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3. Avaliação da produção de odor na estação de tratamento de esgoto Paranoá e seus problemas associados
The Federal District of Brazil has been suffering problems of emanations of odors proceeding from sewage treatment plants (STP). For this reason, this work has the objective of evaluating the production of odor in the Paranoá sewage treatment plant (Paranoá STP), in Federal District, and its associated problems, employing hydrogen sulfide (H2S) as an indic
Publicado em: 2007
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4. Ric-8B, a putative GEF for Galpha-olf, promotes functional expression of odorant receptors / Ric-8B, um provável GEF para Galpha-olf, promove expressão funcional de receptores olfatórios
Os odores são detectados por uma grande família de receptores olfatórios (ORs) que são expressos nos neurônios olfatórios localizados no nariz. Os ORs ativados por um determinado odor acoplam-se à proteína Galfaolf que irá promover a ativação da adenilil ciclase III, resultando na produção de AMPc. O aumento da concentração de AMPc irá ativar
Publicado em: 2006
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5. Evaluation of oral and nasal odor in patients with and without cleft lip and/or palate / Avaliação dos parâmetros de halitose bucal e nasal em pacientes com e sem fissura de lábio e/ou palato
The aim of this study was to investigate the relationship between the parameters of halitosis in patients with cleft lip and/or palate and post-graduation students of the Bauru Dental School (FOB) University of Sao Paulo, taking into account the presence of tongue coating, classified according to its dry weight, salivary flow rate, BANATM test and Halimet
Publicado em: 2003
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6. Sex-chromosomal odor types influence the maintenance of early pregnancy in mice.
Genetically specified body odors are termed odor types. We showed previously that both the X chromosome and the Y chromosome of the mouse determine differential odor types demonstrable by the behavior of trained mice in the conventional Y-maze test system extensively used in the definition of odor types specified by the major histocompatibility complex (MHC)
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7. Olfactory computation and object perception.
Animals that are primarily dependent on olfaction must obtain a description of the spatial location and the individual odor quality of environmental odor sources through olfaction alone. The variable nature of turbulent air flow makes such a remote sensing problem solvable if the animal can make use of the information conveyed by the fluctuation with time of
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8. The human olfactory receptor gene family
Humans perceive an immense variety of chemicals as having distinct odors. Odor perception initiates in the nose, where odorants are detected by a large family of olfactory receptors (ORs). ORs have diverse protein sequences but can be assigned to subfamilies on the basis of sequence relationships. Members of the same subfamily have related sequences and are
National Academy of Sciences.
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9. Odor types determined by the major histocompatibility complex in germfree mice.
The major histocompatibility complex (MHC) is the prime but not exclusive determinant of genetically specific constitutive body odors, termed odor types, represented strongly in urine of the mouse. Perception of MHC-determined odor types influences reproductive behavior in the contexts of mate choice and maintenance of early pregnancy, tending to favor the p
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10. Selective imaging of presynaptic activity in the mouse olfactory bulb shows concentration and structure dependence of odor responses in identified glomeruli
More chemicals can be smelled than there are olfactory receptors for them, necessitating a combinatorial representation by somewhat broadly tuned receptors. To understand the perception of odor quality and concentration, it is essential to establish the nature of the receptor repertoires that are activated by particular odorants at particular concentrations.
The National Academy of Sciences.
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11. Ability to perceive androstenone can be acquired by ostensibly anosmic people.
Nearly half the adult human population does not perceive an odor when sniffing androstenone (5 alpha-androst-16-en-3-one), a volatile steroid found in human perspiration, boar saliva, some pork products (e.g., bacon), truffles, and celery. This variation in ability to perceive androstenone has a significant heritable component, suggesting that androstenone i
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12. Predictive value of the "clue cells" investigation and the amine volatilization test in vaginal infections caused by Gardnerella vaginalis.
Although still controversial, an etiologic role of Gardnerella vaginalis is imputed in vaginitis. Besides isolation of the organism by culture, two alternative diagnostic procedures have been claimed to be useful: the investigation of "clue cells" in clinical specimens and the amine volatilization test or fishy odor perception in genital secretions. Herein w