Inversions
Mostrando 13-24 de 427 artigos, teses e dissertações.
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13. Citotaxonomia de arraias de água doce (Myliobatiformes, Potamotrygonidae) da Bacia Amazônica Central
The family Potamotrygonidae in the order Myliobatiformes comprises all the Neotropical freshwater ray species. The knowledge about this fish group is limited, for example, the species number is uncertain, some species names are questionable, there is no information about how their diversification in freshwater happened, and there are no studies about their r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/10/2011
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14. Diversificação evolutiva de gobídeos no litoral brasileiro: padrões citogenéticos e ecomorfológicos
The fishes of the order Perciformes are characterized as an important model for understanding the genetic structure of marine populations, because besides they present examples of conservation chromosomal, also they present the karyotype diversification for some groups. Gobiidae family is the most specious in the marine environment. Among its representatives
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/05/2011
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15. Uma análise comparativa do logos e do pathos no discurso religioso: a missa católica e o culto assembleiano / A comparative analysis of the logos and of the pathos in the religious discourse: a Catholic Mass and a worship of the Church Assembly of God
We believe that the claimant may make use of reason and emotion in order to persuade the interlocutor. Therefore, in this work we intend to identify, analyze and compare the discourse strategies within two religious celebrations, a Mass (Homily) and a worship of the Church Assembly of God (Evangelization), aiming at the argumentation through reason (logos) a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2011
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16. Cytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae)
In this work, we analyzed the karyotypes of five species. Hypostomus cf. heraldoi, from the Mogi-Guaçu River, had 2n = 72 chromosomes, with a nucleolar organizer region (NOR) in one chromosomal pair. Hypostomus regani, from the Mogi-Guaçu River had 2n = 72 chromosomes with NORs in two chromosomal pairs. Hypostomus sp., from the Mogi-Guaçu River basin, had
Genetics and Molecular Biology. Publicado em: 26/08/2011
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17. A self-checking scheme to mitigate single event upset effects in SRAM-based FPAAs
In this work the problem of Single Event Upset (SEU) is considered in a recent analog technology: The Field Programmable Analog Arrays (FPAAs). Some FPAA models are based on SRAM memory cells to implement the user programmability, which makes this kind of device vulnerable to SEU when employed in applications susceptible to the incidence of radiation. In the
Publicado em: 2011
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18. High Levels of Chromosomal Differentiation in Euchroma gigantea L. 1735 (Coleoptera, Buprestidae)
Euchroma giganteawas karyotypically studied using conventional staining, C-banding, silver nitrate staining and ribosomal fluorescent in situ hybridization (rDNA FISH). Broad wide autosomal polymorphism and a complex sex determination system were found in this beetle. Karyotype complements ranging from 2n = 32, X1X2X3Y1Y2Y3 to 2n = 36,X1X2X3Y1Y2Y3 were detec
Genetics and Molecular Biology. Publicado em: 2011
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19. Chromosomal inversion polymorphism in Drosophila mediopunctata : seasonal, altitudinal, and latitudinal variation
The most polymorphic chromosome for inversions in Drosophila mediopunctata is the chromosome II, where 17 inversions have been found, eight of which occurring in the distal region and nine in the proximal region. We present an analysis of the chromosome II inversion polymorphism with respect to seasonal, altitudinal and latitudinal variation. In D. mediopunc
Publicado em: 2010
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20. Chromosomal polymorphism in Drosophila willistoni populations from Uruguay
Chromosomal polymorphism in natural populations of Drosophila willistoni from Uruguay and southern Brazil was investigated in order to understand the genetic characteristics and evolutionary potential of these almost geographically marginal populations. The level of chromosomal polymorphism in samples from Uruguay was higher than in those from the southernmo
Publicado em: 2010
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21. VARIAÇÃO SAZONAL DA ACUMULAÇÃO E FLUXO NOTURNOS DE ESCALARES EM UMA PASTAGEM NA REGIÃO AMAZÔNICA / SEASONAL VARIATION OF SCALAR NOCTURNAL ACCUMULATION AND FLUXES OVER A PASTURE IN AMAZONIA
Carbon dioxide and Radon nocturnal vertical accumulations over a pasture site at the Amazon region are investigated. The site is characterized by a strong thermal stability along the night, which is responsible for suppressing a good portion of the local turbulent mixing. Therefore, it is problematic to use techniques such as the eddy covariance for estimati
Publicado em: 2010
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22. FORMAÇÃO DE PROFESSORES: movimentos de criação? / FORMATION OF PROFESSORS: creation movements?
The aim of the present study was to analyze approaches used by NUPECON Professors as to opposition to cultural replica process set forth by the continued education program of the county of São Luis, MA Brazil. The following issues are raised on the subject: how has NUPECON been extraofficially constituted for the training of teachers in the Municipal Educat
Publicado em: 2010
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23. Operação analógica de transistores de múltiplas portas em função da temperatura. / Analog operation of multiple gate transistors as a function of the temperature.
In this work it is presented an analysis of the analog operation of multiple gate transistors, evaluating the Early Voltage, the open-loop voltage gain, the transconductance over the drain current ratio (gm/IDS), the drain conductance and, especially, the harmonic distortion exhibited by these devices. Along the work, FinFETs, Gate-All-Around (GAA) devices w
Publicado em: 2010
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24. Comparative cytogenetics of three species of Dichotomius (Coleoptera, Scarabaeidae)
Meiotic and mitotic chromosomes of Dichotomius nisus, D. semisquamosus and D. sericeus were analyzed after conventional staining, C-banding and silver nitrate staining. In addition, Dichotomius nisus and D. semisquamosus chromosomes were also analyzed after fluorescent in situ hybridization (FISH) with an rDNA probe. The species analyzed had an asymmetrical
Genetics and Molecular Biology. Publicado em: 01/05/2009