Metamorphosis
Mostrando 25-36 de 268 artigos, teses e dissertações.
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25. Manoel de Barros e os espaÃos da infÃncia
This study aims to examine the first three Mato Grosso poet Manoel de Barros (1916) works: Poemas concebidos sem pecado (1937), Face ImÃvel (1942) e Poesias (1947). The problem that arises concerns treatment of children, identifying the poetÂs theme, wich will be seen here through the notion of space. Assuming that the text creates a tension between the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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26. Qualificação sob a divisão capitalista do trabalho: ideologia e desqualificação / Not informed by the author
The productive restructuring process underway since the 1990s led to profound transformations in the world of work, which resulted in a serious situation of unemployment in Brazil, under neoliberalism. The years 2000 saw the return jobs in the governmental developmentist policies. In both moments the occupation of the workforce, vocational skills was identif
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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27. Morphometry of the midgut of Melipona quadrifasciata anthidioides (Lepeletier) (Hymenoptera: Apidae) during metamorphosis
In Hymenoptera, midgut changes begin in the last instar. At this stage, the larval epithelial digestive cells degenerate, leaving only the basal membrane and the regenerative cells which will develop into a new epithelium during the pupal stage and in the adult. Epithelium renewal is followed by changes in volume and shape of the midgut. Morphometric analysi
Neotropical Entomology. Publicado em: 2011-12
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28. Changes in the fat body during the post-embryonic development of the predator Toxorhynchites theobaldi (Dyar & Knab) (Diptera: Culicidae)
Several studies have focused on understanding the biochemistry and morphology of the fat body of the hematophagous mosquito Aedes aegypti (L.) (Diptera: Culicidae). In contrast, few studies, if any, have focused on morphological characters of the fat body in other mosquitoes, especially non-hematophagous taxa such as the culicid Toxorhynchites. Larvae of Tox
Neotropical Entomology. Publicado em: 2011-08
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29. Time interval from ovulation to extrusion in female bullfrog in different photoperiods
It was analyzed in this work the influence of photoperiod on time interval from ovulation induction period to extrusion of ovocits in female bullfrogs (Lithobates catesbeianus). It was used 54 females reared from metamorphosis to 9 months of age under three photoperiods: dark time (DL 0:24), 16 hours of daylight (DL 16:8) and 12 hours of daylight (DL 12:12).
Revista Brasileira de Zootecnia. Publicado em: 2011-08
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30. Ontogenesis and functional morphology of the digestive system of the freshwater prawn, Macrobrachium amazonicum (Decapoda: Palaemonidae)
The appropriate feeding regime for larvae and post-larvae of crustacean decapods is essential for successful larval culture. Reports on the development and morphology of the mouthparts and foregut of these crustaceans have aided in the selection of appropriate larval foodstuffs and consequently increased larval survival and growth rate during development. In
Zoologia (Curitiba). Publicado em: 2011-06
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31. Intraspecific interactions in the mangrove crab Ucides cordatus (Decapoda: Ocypodidae) during the metamorphosis and post-metamorphosis periods under laboratory conditions
Current efforts for restocking natural populations of the mangrove crab Ucides cordatus (Linnaeus, 1763) in Brazil have focused on developing a methodology for stimulating the metamorphosis of U. cordatus larvae at a large scale. The aim of the present study was to compare the mortality rates both in individual and mass conditions, during the induction of me
Zoologia (Curitiba). Publicado em: 2011-02
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32. Avaliação do efeito da salinidade e alimentação no desenvolvimento inicial em larvas de três espécies de caranguejos de importância econômica em laboratório. / The effect of salinity and feeding on the initial larvae development of three crabs species with economic importance in the laboratory
The present study aimed to provide information about the larval rearing of three species commercially harvested crabs in Brazil. Foremost was evaluated the influence of salinity on larval survival of U. cordatus, C. guanhumi and G. cruentata early stage of development, and subsequently the influence of diet on the early development of larvae of U. cordatus i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/09/2010
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33. Síndrome de burn-out e identidade do professor universitário / Syndrome of burn-out and identity of the university teacher
This research aimed to know the development of teacher s identity process. As a matter of fact, while they do their work teachers are generally subjected to objective conditions that usually promote the uprising of the burnout syndrome. We tried to identify the syndrome components and set up the relationship between the syndrome development and the work teac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2010
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34. 5-Bromo-2’-deoxyuridine induces visible morphological alteration in the DNA puffs of the anterior salivary gland region of Bradysia hygida (Diptera, Sciaridae)
5-Bromo-2’-deoxyuridine (BrdUrd) has long been known to interfere with cell differentiation. We found that treatment ofBradysia hygida larvae with BrdUrd during DNA puff anlage formation in the polytene chromosomes of the salivary gland S1 region noticeably affects anlage morphology. However, it does not affect subsequent metamorphosis to the adult stage.
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-12
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35. Analysis of nucleus activity in malpighian tubules of Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae) larvae by critical electrolyte concentration
Diatraea saccharalis (Fabricius) has cryptonephridial type Malphigian tubules (MT). This type of MT is characterized by the penetration of the distal part of the MT into the external walls of the rectum, which is usually lined with a perinephral membrane. The MT is divided into three differentiated regions: proximal, middle and distal. In this study, our obj
Neotropical Entomology. Publicado em: 2010-08
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36. Influence of natural settlement cues on the metamorphosis of fiddler crab megalopae, Uca vocator (Decapoda: Ocypodidae)
Megalopas de muitas espécies de caranguejos decápodes aceleram seu período de desenvolvimento até a metamorfose (TOM) quando são expostas a estímulos naturais físicos e/ou químicos característicos do habitat parental. No presente estudo, a influência de estímulos naturais sobre as taxas de muda e sobre o PDM foi investigada nas megalopas do carang
Anais da Academia Brasileira de Ciências. Publicado em: 2010-06