Odors
Mostrando 13-24 de 119 artigos, teses e dissertações.
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13. Oviposition activity of Aedes aegypti L. (Diptera: Culicidae) in responseto different organic infusions
The present study investigates new sources of infusion as an oviposition attractant for Aedes aegypti L. Infusions with fetid and non-fetid odors were compared as an oviposition stimulant. Traps baited with infusions of dehydrated cashew leaves (Anacardium occidentale), potato peels (Solanum tuberosum) and graminea (Panicum maximum) were compared as attracta
Neotropical Entomology. Publicado em: 2010-04
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14. Effect of conspecific and plant volatiles of Murraya paniculata (L.) JACK, Psidium guajava L. and Citrus sinensis (L.) Osbeck on the behavior OF Diaphorina citri Kuwayama (Hemiptera: Psyllidae) / Efeito dos coespecíficos e voláteis das plantas Murraya paniculata (L.) Jack, Psidium guajava L. e Citrus sinensis (L.) Osbeck sobre o comportamento de Diaphorina citri Kuwayama (Hemiptera:Psyllidae)
The agro-ecosystems consist of complex trophic relationships between plants, herbivores and their natural enemies. It is known that the majority of plants can produce volatiles compounds used as chemical signals by different groups of insects. These compounds can be produced constitutively in healthy plants, i.e., without induction. In other hand, the produc
Publicado em: 2010
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15. Damage intensity of Aceria guerreronis Keifer (Acari;Eriophyidae) on coconut fuits under different conditions and olfactory responses of their predatory mites / Intensidade de dano de Aceria guerreronis Keifer (Acari : Eriophyidae) em frutos de coqueiro sob diferentes condições e respostas olfativas de seus predadores.
Aceria guerreronis Keifer (Acari: Eriophyidae) is widespread in most coconut growing regions of the Americas and Africa and it has been established rapidly in some major producing countries in Asia. It is considered a major coconut pest in the world. Several studies have being carried out to obtain information to control this pest. This study aimed to: (I) i
Publicado em: 2010
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16. Enriquecimento ambiental para gatos domésticos (Felis silvestris catus L.): A importância dos odores / Environmental enrichment for domestic cats (Felis silvestris catus L.): The importance of odors
The transfer of odors between the cats and the environment occurs through physical contact, but also for disposal of excreta. For environmental enrichment can promote behaviors closer view of the natural and extinguish unwanted behaviors, thus contributing to the physical and psychological health of animals. This work aimed to promote the environment for sti
Publicado em: 2009
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17. Halitosis: a review of associated factors and therapeutic approach
Halitosis or bad breath is an oral health condition characterized by unpleasant odors emanating consistently from the oral cavity. The origin of halitosis may be related both to systemic and oral conditions, but a large percentage of cases, about 85%, are generally related to an oral cause. Causes include certain foods, poor oral health care, improper cleani
Braz. oral res.. Publicado em: 2008-08
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18. Estudo da ação do núcleo pré-mamilar ventral de ratos no controle reprodutivo e em respostas à exposição feromonal. / The role of the ventral premammillary nucleus of rats in the reproductive control and in responses to pheromonal stimulation.
The objective of this study was to assess the role played by the ventral premammillary nucleus (PMV): 1) in the regulation of the female reproductive system, 2) as a mediator of the effects of leptin and 3) in response to pheromonal stimulation. For this purpose, we produced bilateral PMV lesions in female rats. We observed that PMV lesion: disrupted the est
Publicado em: 2008
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19. COMPORTAMENTO DE PEQUENOS FELINOS NEOTROPICAIS EM CATIVEIRO
The lack of information concerning the small neotropical felids can be related to their predominant nocturnal activity, use of dense vegetation and hunting that threats natural populations. Therefore, research with captive animals may supply essential information for the development of effective conservation plans and strategies. The aim of this work was to
Publicado em: 2008
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20. Volatile composition and flavour of Italian types dry fermented sausage produced in Brazil / Composição de volateis e earoma de salames nacionais tipos Italiano e Milano
Dry-fermented sausages are meaty products resulting from fermentation and dehydration/ripening processes. They are produced and consumed worldwide because of their typical sensory characteristics mainly in relation to the aroma and flavor. In Brazil this product has reached successive record sales in the internal market, with a total sale of R$ 265 million d
Publicado em: 2008
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21. Seeing smells: development of an optoelectronic nose
The development of an array of chemically-responsive dyes on a porous membrane and in its use as a general sensor for odors and volatile organic compounds (VOCs) is reviewed. These colorimetric sensor arrays (CSA) act as an "optoelectronic nose" by using an array of multiple dyes whose color changes are based on the full range of intermolecular interactions.
Química Nova. Publicado em: 2007-06
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22. Aplicação de análises estatística e neural para reconhecimento de sinais de odores
This work investigates the use of an electronic nose prototype for prognosis of Diabetes Mellitus. The work involves five main parts: (1) building of odors database by aroma sensors; (2) an evaluation of the odors database through multivariate statistics techniques;(3) use of Multilayer Perceptron (MLP) and Radial Basis Function (RBF) Artificial Neural Netwo
Publicado em: 2007
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23. Comparação estatística de performance de métodos de redes neurais para sistema de olfação biológica.
One of the human senses that has several aspects get to be elucidated is the olfactory sense. Therefore, many scientists have been studying this sense in order to better understand how does the information processing happens until the brain recognize it. There were lots of theories regarding olfactory system functioning, in which its authors try to explain h
Publicado em: 2007
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24. Avaliação da adição de nitrato de amônio para redução de odor nos esgotos de Pereira Barreto - SP: reflexos na qualidade da água do reservatório de Três Irmãos, após dez anos de aplicação / Evaluation of the addition of ammonium nitrate to the sewer system in Pereira Barreto - SP, in order to reduce the odor: reflections upon the quality of the water in the Três Irmãos reservoir, aften ten years of application
It evaluates the alteration of the quality of the water in the region of discharges of domestic effluents into the Três Irmãos reservoir, due to the application, since 1996, of ammonium nitrate into the sewer system of the city of Pereira Barreto. Six trips to collect samples were performed bimonthly between October 2004 and August 2005.The samples were co
Publicado em: 2007