Chemical Communication
Mostrando 1-12 de 101 artigos, teses e dissertações.
-
1. Unusual effect of chemical communication on social aggression in juvenile cichlid fish Cichlasoma paranaense (Cichliformes: Cichlidae)
RESUMO Algumas espécies de peixes são organizadas socialmente e apresentam uma ordem de rank social que é alcançada por meio de interações agressivas. Após o estabelecimento da hierarquia, essas espécies comunicam seu rank por diversas pistas sensoriais, essa comunicação é adaptativa, pois reduz os efeitos prejudiciais das lutas físicas. Peixes c
Neotrop. ichthyol.. Publicado em: 27/06/2019
-
2. Aspects of mating behavior and antennal sensilla in Anomala inconstans Burmeister, 1844 (Coleoptera: Scarabaeidae: Rutelinae)
Resumo: Em condições adequadas os adultos de Scarabaeidae geralmente realizam revoadas em busca de alimento e áreas de reprodução. As etapas relacionadas ao comportamento de cópula podem ser intermediadas por comunicação química, e os sensilos antenais são as estruturas que detectam os voláteis como os feromônios sexuais. No presente trabalho o c
Biota Neotrop.. Publicado em: 03/06/2019
-
3. Variation of cuticular chemical compounds in three species of Mischocyttarus (Hymenoptera: Vespidae) eusocial wasps
Abstract The social wasps have a remarkable system of organization in which chemical communication mediate different behavioral interactions. Among the compounds involved in this process, cuticular hydrocarbons are considered the main signals for nestmate recognition, caste differentiation, and fertility communication. The aims of this study were to describe
Rev. Bras. entomol.. Publicado em: 2017-09
-
4. Reviewing Microbial Behaviors in Ecosystems Leading to a Natural Quorum Quenching Occurrence
ABSTRACT Quorum sensing is considered one of the most important discoveries in cell-to-cell communication. Although revealed in Bacteria, it has been identified as well as a mechanism present in the other two domains, Eukaryota and Archaea. This phenomenon consists mainly of an exchange and sensing of "words" produced by each cell: chemical signals known as
Braz. arch. biol. technol.. Publicado em: 22/06/2017
-
5. Pictogramas do GHS e sua aplicação como ferramenta de comunicação de perigos para estudantes de graduação
Regularly, teaching laboratories use chemicals hazardous to health. Students must be aware of such hazards, to safely perform didactic experiments. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is a hazard communication tool designed to harmonize the classification with a standardized labeling system worldwide. This work a
Quím. Nova. Publicado em: 2017-04
-
6. COMUNICAÇÃO CIENTÍFICA NO ENSINO SUPERIOR DE QUÍMICA: UMA REVISÃO
The importance of teaching scientific communication skills in undergraduate chemistry courses is well recognized. This paper provides an overview of didactic activities in which students engage to improve these skills. The study was based on an extensive literature review performed on the Journal of Chemical Education and on the Journal of College Science Te
Quím. Nova. Publicado em: 2015-05
-
7. Algunas reflexiones sobre la distancia entre "hablar química" y "comprender química"
A class of chemistry can be considered as a forum for communication between the expert teacher and novice students, where the languages used are explicit and observable interface of a communicative exchange. In this paper we show, with two examples, how the diversity of chemical languages, instead of promoting student understanding, it can act as a source of
Ciênc. educ. (Bauru). Publicado em: 2014-12
-
8. Manufacture of custom-made cranial implants from DICOM® images using 3D printing, CAD/CAM technology and incremental sheet forming
INTRODUCTION: This work aims to pre-operatively manufacture custom-made low-cost implants and physical models (‘biomodels’) of fractured skulls. The pre-DOI: operative manufacturing of biomodels and implants allows physicians to study and plan surgery with a greater possibility of achieving the expected result. Customization contributes to both the esthe
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-09
-
9. Semioquímicos de moscas das frutas do gênero Anastrepha
Volatile compounds involved in the chemical communication of fruit flies have been studied for some years; however, their complete elucidation has not yet been reported. Tephritids, which belong to the Anastrepha genus, exhibit inter- and intraspecific changes regarding the chemical composition of their sex pheromones, as well as an evident relationship with
Quím. Nova. Publicado em: 2014-04
-
10. Produtos químicos perigosos utilizados em laboratórios de ensino: proposta e exemplos para indicação de seus perigos no rótulo
Typically hundreds of different chemical products stored in small flasks which cannot accommodate labels large enough to bear all information required by the Globally Harmonised System of Classification, Labelling and Packaging of Chemicals (GHS) are used in academic laboratories. To overcome this restriction Brazilian legislation permits communication of th
Quím. Nova. Publicado em: 2013
-
11. Integração numérica de leis de velocidade diferenciais com o uso do SCILAB
In this work, we applied the free open source SCILAB software for the numerical integration of differential rate law equations to obtain the concentration profiles of chemical species involved in the kinetics of some complex reactions. An automated method was applied to construct the system of ordinary differential equations (ODE) from the postulated chemica
Quím. Nova. Publicado em: 2013
-
12. Biologia reprodutiva de rainhas e machos de Tetragonisca angustula (Hymenoptera: Meliponini) / Reproductive biology of the queens and males of Tetragonisca angustula (Hymenoptera: Meliponini)
The stingless bees (Hymenoptera: Meliponini)present a haplodiploid sex determination system with complementary sex determination in a single locus. Such a system is a large genetic load for the group and thus the genetic diversity of male\ s aggregations near the nests is essential to minimize the chances of inbreeding. The interactions among the stingless b
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/08/2012