91 resultados para 1536
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Species from the Solenopsis saevissima (Smith) (Hymenoptera: Formicidae) species group are native to South America and have a cosmopolitan distribution because they have been accidentally introduced in many countries around the world. In Brazil, they have a wide distribution, including urban areas. The present study was conducted to investigate the characterization of Solenopsis genus populations associated with urban/human interference sites in Brazil by analyzing the mitochondrial gene cytochrome oxidase I and estimating the degree of relatedness of these populations to make inferences about their phylogeny and also observe the patterns of mitochondrial haplotype (mitotype) distribution across their range. The results revealed complete geographical coherence and polyphyly for the Solenopsis invicta Buren and Solenopsis saevissima species groups, which confirms the diversity of the genera. It also suggests the possibility that reproductively-isolated populations occur, resulting in the evolutionary process of speciation. No predominant haplotype was found in the populations analyzed, but some were more prevalent.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Insects of the suborder Heteroptera are known for their odor, for being pests, or for being disease carriers. To gain better insight into the cytogenetic characteristics of heteropterans, 18 species of terrestrial Heteroptera belonging to eight families were studied. The presence of heteropycnotic corpuscles during prophase I, terminal or interstitial chiasmas, telomeric associations between chromosomes, ring disposals of autosomes during metaphase, and late migrations of the sex chromosomes during anaphase were analyzed. These features showed identical patterns to other species of Heteroptera previously described in the literature. Another studied characteristic was chromosome complements. The male chromosome complements observed were 2n = 12 chromosomes [10A + XY, Galgupha sidae (Amyot & Serville) (Corimelaenidae) and Pachycoris torridus (Scopoli) (Scutelleridae)]; 2n = 13 [10A + 2m + X0, Harmostes serratus (Fabricius), Harmostes apicatus (Stål), Jadera haematoloma (Herrich-Schaeffer), Jadera sanguinolenta (Fabricius), Jadera sp. (Rhopalidae)], and Neomegalotomus parvus (Westwood) (Alydidae); 2n = 13 [12A + X0, Stenocoris furcifera (Westwood) (Alydidae); 2n = 14 [12A + XY, Dictyla monotropidia (Stål) (Tingidae)]; 2n = 19 [18A + X0, Acanonicus hahni (Stål) (Coreidae)]; 2n = 21 [18A + 2m + X0, Acanthocephala sp. (Dallas) (Coreidae)]; 2n = 27 [24A + 2m + X0, Anisoscelis foliacea marginella (Dallas) (Coreidae)]; 2n = 18 [16A + XY, Oncopeltus fasciatus (Dallas) (Lygaeidae)]; 2n = 17 [14A + X1X2Y, Oxycarenus hyalinipennis (Costa) (Lygaeidae)]; 2n = 16 [12A + 2m + XY, Pachybrachius bilobatus (Say) (Lygaeidae)]; 2n = 26 [24A + XY, Atopozelus opsinus (Elkins) (Reduviidae)]; and 2n = 27 [24A + X1X2Y, Doldina carinulata (Stål) (Reduviidae)]. The diversity of the cytogenetic characteristics of Heteroptera was reflected in the 18 studied species. Thus, this study extends the knowledge of these characteristics, such as the variations related to chromosome complements, sex chromosome systems, and meiotic behavior.
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This is an article about a decisive moment in the formation of Western modern literature. We are talking about Lessing’s criticism of the excessive influence of neoclassical French theatre on German theatrical production. Lessing considered that the aristocratic model imported from France did not correspond to German society’s context at all – society which had already been marked by an incipient bourgeois mode of life. So the German critic dedicated his theoretical efforts to affirm the necessity and to raise possibilities about a literary production which had more consonance with what he considered to be the German Zeitgeist. It is in Shakespeare’s work that Lessing found his answer, and this fact will unleash the appearing of the Sturm und Drang movement and will consequently give birth to an incipient bourgeois literature. So we analyze here the way this Shakespearian influence happens and its relevance in the formation of a bourgeois literature.
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Between 1894 and 1899 Kate Chopin (1850 – 1904), one of the main exponents of American Realism and Feminism, published seven critical essays in newspapers and journals. To this number, it might be added the sketch ―Confidences‖ and the two first entrances of Impressions, her second diary, totalizing nine texts. These texts unveil a refined critical spirit, an outspoken and edge-cutting style in writing, sometimes sarcastically merciless, and an eager reader, all of them aspects that would be put into practice by the Feminist criticism expressed in the author‘s novels and short stories. To introduce and briefly discuss these essays are the main purposes of this paper.
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Our aim in this article is to accomplish an afterthought concerning contemporary fiction. Taken as initial the afterthought of the role of the novel as fiction and its linking with the afterthought of mimesis in modernity, we aim to consider the presence of agony not only as a theme but also as a structural element of narratives. Eventually, we will make brief tallies of theses aspects in the work of José Saramago.
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This article intends an approach among literary analysis, philosophy and psichoanalysis in a short story from Mia Couto, Mozambican author. From the trajectory of the main character and from their relationship with the others, we intended to do a reading on the presence of anguish within this literary text. In order to do that, two definitions were used to explain what would be considered torment: one from the philosopher Kierkegaard and the other from the psichoanalyst Freud. Concluding, we aim to compare this two readings in a way that we establish bounds between both.
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The present article starts from the initial consideration that, in the perspective of the investigations of the Brazil/Germany literary relations, not always the study of the presence of Brazilian literary works in Germany has been receiving sufficient attention in Brazil. Initially, the natural existence of mental paths is signalized. This fact, in a way, guides the general lines of the critical Brazilian thought in the consideration of aspects of the cultural and literary dialog here in question. This consideration favors the movement that goes from Germany to Brazil, which doesn’t give enough space for the study of the opposite movement. Finally, some historical literary elements are presented, which can base deeper studies of the literary relations Brazil/Germany in the sense that here is intended to be rescued, i.e., the one that goes from South America to Europe.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)