1000 resultados para Grupo Drosophila willistoni


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Se objetivó conocer el significado de la histerectomía para un grupo de hombres chilenos, parejas de mujeres histerectomizadas (HPMH). Estudio cualitativo, con entrevistas en profundidad realizadas a 15 hombres, parejas de mujeres histerectomizadas, entre Mayo y Septiembre del 2010, previa aprobación de dos Comités de Ética. Para el análisis de los datos se utilizó la perspectiva fenomenológica descrita por Giorgi, y se realizó el análisis de contenido según Krippendorff. Los criterios de Creswell fueron utilizados para evaluar la credibilidad del análisis y asegurar la validez descriptiva. Emergieron cinco dimensiones que representan aspectos únicos del significado de la histerectomía para los hombres parejas de mujeres histerectomizadas: síntomas, comentarios, atributos del útero, preocupaciones, y cambios en la sexualidad. Educar los hombres parejas de mujeres histerectomizadas es una acción fundamental para apoyar a las mujeres que serán sometidas a una histerectomía, siendo necesaria su incorporación en el plan de cuidados de ellas.

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O presente trabalho trata-se de estudo transversal e retrospectivo, realizado com trinta mulheres usuárias de uma Unidade Básica de Saúde (UBS) da Zona Leste de São Paulo, por meio de entrevista e consulta de prontuários, com o objetivo de verificar como ocorre a pesquisa do estreptococo do grupo B em gestantes. As participantes da amostra realizaram pré-natais na UBS etiveram seus bebês no período de janeiro de 2009 a dezembro de 2010. Realizaram a cultura do EGB 23 mulheres (76,7% do total), 82,6% com resultados negativos e 17,4%, positivos; 43,5% delas realizaram o exame entre 35 e 37 semanas de gestação; 23,5% não realizaram o exame, a maior parte por ausência de solicitação. Foi possível verificar que ocorreram falhas no rastreamento do EGB durante o período selecionado.

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Main developmental programs are highly conserved among species of the animal kingdom. Improper execution of these programs often leads to progression of various diseases and disorders. Here we focused on Drosophila wing tissue morphogenesis, a fairly complex developmental program, one of the steps of which - apposition of the dorsal and ventral wing sheets during metamorphosis - is mediated by integrins. Disruption of this apposition leads to wing blistering which serves as an easily screenable phenotype for components regulating this process. By means of RNAi-silencing technique and the blister phenotype as readout, we identify numerous novel proteins potentially involved in wing sheet adhesion. Remarkably, our results reveal not only participants of the integrin-mediated machinery, but also components of other cellular processes, e.g. cell cycle, RNA splicing, and vesicular trafficking. With the use of bioinformatics tools, these data are assembled into a large blisterome network. Analysis of human orthologues of the Drosophila blisterome components shows that many disease-related genes may contribute to cell adhesion implementation, providing hints on possible mechanisms of these human pathologies.

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The olfactory system of Drosophila has become an attractive and simple model to investigate olfaction because it follows the same organizational principles of vertebrates, and the results can be directly applied to other insects with economic and sanitary relevance. Here, we review the structural elements of the Drosophila olfactory reception organs at the level of the cells and molecules involved. This article is intended to reflect the structural basis underlying the functional variability of the detection of an olfactory universe composed of thousands of odors. At the genetic level, we further detail the genes and transcription factors (TF) that determine the structural variability. The fly's olfactory receptor organs are the third antennal segments and the maxillary palps, which are covered with sensory hairs called sensilla. These sensilla house the odorant receptor neurons (ORNs) that express one or few odorant receptors in a stereotyped pattern regulated by combinations of TF. Also, perireceptor events, such as odor molecules transport to their receptors, are carried out by odorant binding proteins. In addition, the rapid odorant inactivation to preclude saturation of the system occurs by biotransformation and detoxification enzymes. These additional events take place in the lymph that surrounds the ORNs. We include some data on ionotropic and metabotropic olfactory transduction, although this issue is still under debate in Drosophila.

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O objetivo do estudo foi identificar fatores terapêuticos presentes em grupo de promoção da saúde de idosos. Estudo descritivo exploratório com abordagem qualitativa, cujos dados foram coletados por meio de grupos focais realizados com participantes do grupo e suas coordenadoras, entre dezembro de 2010 e abril de 2011. Os dados foram submetidos a análise de conteúdo, modalidade temática. Os achados mostraram convergência de respostas entre os participantes da pesquisa, indicando ressonância e complementaridade na identificação dos fatores terapêuticos coesão, instilação de esperança, socialização, compartilhamento de informações, fatores existenciais, altruísmo, aprendizagem interpessoal e universalidade. A identificação desses vários fatores no grupo estudado comprova seu potencial terapêutico, especialmente por atender as necessidades dos idosos, mantê-los saudáveis, fortalecer o sentimento de amor pela vida e pertença a um grupo social.

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Nas últimas décadas, tem-se vindo a assistir a um fenómeno importante - a globalização das economias, o que tem conduzido ao crescimento das unidades económicas, quer a nível nacional, quer a nível internacional. O crescimento das empresas pode conseguir-se através do próprio desenvolvimento ou pela aquisição de outras empresas. A constituição de agrupamentos de empresas mediante a aquisição de unidades económicas ou pela constituição de empresas, dá origem ao que normalmente se designa por Grupos. É neste domínio dos Grupos que se desenvolve o processo de consolidação que requer um elevado número de procedimentos para alcançarmos o objectivo de uma imagem fiel e verdadeira, desde a definição do perímetro (empresas que integram as demonstrações financeiras consolidadas) à escolha do método de consolidação, passando pela homogeneização de princípios contabilísticos e pelos ajustamentos de consolidação. Em Cabo Verde trata-se de um fenómeno recente mas que já vem sendo regulado tanto por normativos contabilísticos com perspectiva de publicação de legislação fiscais. O Sistema de Normalização Contabilística e de Relato Financeiro. O processo de consolidação de contas utilizadas no Grupo Tecnicil, como qualquer outro é complexo e que visa essencialmente satisfazer a necessidade de obtenção de informação financeira como um todo e que sem informação que demonstre a evolução global dificilmente se conseguiria avaliar a realidade económico-financeira do mesmo e os impactos das decisões estratégicas tomadas pela gestão. O efeito de consolidação enquanto elemento de informação é de extrema importância para a gestão do grupo, em relação a tributação pelo resultado (caso fosse possível na altura da consolidação do exercício de 2008) teria um efeito positivo nos resultados tendo em conta as diversas nuances de cada entidade do grupo em relação a tributação do resultado.

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A globalização da economia e dos mercados mundiais obrigou as empresas a uma constante necessidade de adaptação às regras impostas, colocando novos desafios às suas estratégias de crescimento e competitividade. Neste sentido, as empresas vêm adoptando uma estratégia de concentração para o reforço da sua competitividade, de melhor actuação num mercado planetário, de uma diminuição dos riscos, pois, passa a haver menor concorrência, o estabelecimento de economias de escala, sinergias e controlo de segmentos de mercado entre outros. A Contabilidade enquanto instrumento de informação e de suporte às decisões, tem por objectivo registar os factos patrimoniais, os quais resumem-se em mapas e documentos que auxiliam os seus utilizadores, em especial os gestores de topo, na tomada de decisões suportadas por uma informação fiável e correcta. Com base neste objectivo, o Sistema de Normalização Contabilística e de Relato Financeiro actualmente em vigor, subsidiariamente com as Normas Internacionais, veio estabelecer procedimentos analíticos para situações particulares, de modo a que as demonstrações financeiras possam reflectir uma imagem verdadeira e apropriada das instituições. A situação particular que desenvolvemos, consiste no tratamento contabilístico da concentração das actividades empresariais empreendidas pela TECNICIL SGPS, com a aplicação da NRF 24. Esta norma determina que todas as concentrações de actividades empresariais devem ser contabilizadas pelo método da compra, devendo a adquirente reconhecer os activos, os passivos e os passivos contingentes identificáveis da adquirida, pelos seus justos valores à data de aquisição, e reconhecer também o Goodwill que será posteriormente testado quanto à imparidade em vez de ser amortizado.

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In addition to the ubiquitous apical-basal polarity, epithelial cells are often polarized within the plane of the tissue - the phenomenon known as planar cell polarity (PCP). In Drosophila, manifestations of PCP are visible in the eye, wing, and cuticle. Several components of the PCP signaling have been characterized in flies and vertebrates, including the heterotrimeric Go protein. However, Go signaling partners in PCP remain largely unknown. Using a genetic screen we uncover Kermit, previously implicated in G protein and PCP signaling, as a novel binding partner of Go. Through pull-down and genetic interaction studies, we find that Kermit interacts with Go and another PCP component Vang, known to undergo intracellular relocalization during PCP establishment. We further demonstrate that the activity of Kermit in PCP differentially relies on the motor proteins: the microtubule-based dynein and kinesin motors and the actin-based myosin VI. Our results place Kermit as a potential transducer of Go, linking Vang with motor proteins for its delivery to dedicated cellular compartments during PCP establishment.

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Conflict between males and females over whether, when, and how often to mate often leads to the evolution of sexually antagonistic interactions that reduce female reproductive success. Because the offspring of relatives contribute to inclusive fitness, high relatedness between rival males might be expected to reduce competition and result in the evolution of reduced harm to females. A recent study investigated this possibility in Drosophila melanogaster and concluded that groups of brothers cause less harm to females than groups of unrelated males, attributing the effect to kin selection. That study did not control for the rearing environment of males, rendering the results impossible to interpret in the context of kin selection. Here, we conducted a similar experiment while manipulating whether males developed with kin prior to being placed with females. We found no difference between related and unrelated males in the harm caused to females when males were reared separately. In contrast, when related males developed and emerged together before the experiment, female reproductive output was higher. Our results show that relatedness among males is insufficient to reduce harm to females, while a shared rearing environment - resulting in males similar to or familiar with one another - is necessary to generate this pattern.

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A reanalysis, based on museum specimens, of our previously published data on the geographical distribution of the species of Drosophila belonging to the cardini group in Brazil is presented and discussed. As previously recorded in several papers, including ours, the following four species were recognized: D. cardini, D. cardinoides, D. neocardini, and D. polymorpha. However, it was realized that most of the flies we have previously identified as Drosophila cardinoides belong in fact to Drosophila cardini. To facilitate the proper identification of these four near-sibling species, their holotypes were analyzed and their terminalia were described and illustrated. A key to the four species is also provided.

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Systematics, phylogeny and geographical distribution of the South American species of Centris (Paracentris) Cameron, 1903, and Centris (Penthemisia) Moure, 1950, including a phylogenetic analysis of the "Centris group" sensu Ayala, 1998 (Hymenoptera, Apoidea, Centridini). A cladistic analysis with the objective of testing the hypothesis of monophily of Centris (Paracentris) Cameron, 1903, and of studying its phylogenetic relationships with the other subgenera that belong to the Centris group, sensu Ayala, 1998, and the relationships among the species that occur in South America, is presented. Centris (Paracentris) is a group of New World bees of amphitropical distribution, especially diversified in the Andes and in the xeric areas of South and North America. Thirty-one species were included in the analysis, four considered as outgroup, and 49 characters, all from external morphology and genitalia of adult specimens. Parsimony analyses with equal weights for the characters and successive weighting were performed with the programs NONA and PAUP, and analyses of implied weighting with the program PeeWee. The strict consensus among the trees obtained in all the analyses indicates that C. (Paracentris), as previously recognized, is a paraphyletic group. In order to eliminate that condition, the subgenera C. (Acritocentris), C. (Exallocentris) and C. (Xerocentris), all described by SNELLING (1974) are synonymized under C. (Paracentris). The subgenus C. (Penthemisia) Moure, 1950, previously considered a synonym of C. (Paracentris), is reinstated, but in a more restricted sense than originally proposed and with the following species: Centris brethesi Schrottky, 1902; C. buchholzi Herbst, 1918; C. chilensis (Spinola, 1851), C. mixta mixta Friese, 1904, and C. mixta tamarugalis Toro & Chiappa, 1989. Centris mixta, previously recognized as the only South American species of the subgenus C. (Xerocentris), a group supposedly amphitropical, came out as the sister-species of C. buchholzi. The following South American species were recognized under Centris (Paracentris): Centris burgdorfi Friese, 1901; C. caelebs Friese, 1900; C. cordillerana Roig-Alsina, 2000; C. euphenax Cockerell, 1913; C. flavohirta Friese, 1900; C. garleppi (Schrottky, 1913); C. klugii Friese, 1900; C. lyngbyei Jensen-Haarup, 1908; C. mourei Roig-Alsina, 2000; C. neffi Moure, 2000; C. nigerrima (Spinola, 1851); C. toroi sp. nov.; C. tricolor Friese, 1900; C. unifasciata (Schrottky, 1913), and C. vogeli Roig-Alsina, 2000. The relationships among the subgenera of the "Centris group" were: (Xanthemisia (Penthemisia (Centris s. str. - Paracentris))). Centris xanthomelaena Moure & Castro 2001, an endemic species of the Caatinga and previously considered a C. (Paracentris), came out as the sister group of C. (Centris) s. str. A new species of C. (Paracentris) from Chile is described: Centris toroi sp. nov. Lectotypus designations and redescriptions are presented for Centris burgdorfi, C. caelebs, C. lyngbyei, C. tricolor, C. autrani Vachal, 1904 and C. smithii Friese, 1900. New synonyms proposed: C. buchholzi Herbst, 1918 = Centris wilmattae Cockerell, 1926 syn. nov.; C. caelebs Friese, 1900 = Paracentris fulvohirta Cameron, 1903. The female of C. vogeli Roig-Alsina, 2000 and the male of C. xanthomelaena are described.

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Traditionally, the Drosophila guarani species group has been divided into two subgroups: the guarani and the guaramunu subgroups. Two, out of the four species included in this research, are members of the guarani subgroup (D. ornatifrons Duda, 1927 and D. subbadia Paterson & Mainland, 1943) and two are included in the guaramunu subgroup (D. maculifrons Duda, 1927 and D. griseolineata Duda, 1927). However, some authors have suggested that D. maculifrons and D. griseolineata are much closer to some species of the Drosophila tripunctata group than to some of the species of the guarani group. To add new data to the matter under dispute, Polyacrylamide Gel Eletrophoresis (PAGE-SDS) was used for the analysis and comparison of protein composition and Random Amplified Polymorphic DNA (RAPD) analysis to find differences in genomic DNA, in addition to the analysis of quantitative morphological characters previously described. Analysis of PAGE-SDS results in a dendrogram that pointed out D. subbadia as being the most distant within the Drosophila guarani group. However, these results were not supported either by RAPD analysis or by the analysis of continuous morphological characters, which supplied the clustering of D. subbadia with D. ornatifrons. Although our data give strong support to the clustering of D. subbadia and D. ornatifrons, none of the dendrograms provided a clade comprising D. maculifrons and D. griseolineata. Thus, this research does not support the traditional subdivision of the D. guarani group into those two subgroups.

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Drosophila boraceia sp. nov. is described from a single male specimen collected at the Estação Biológica de Boracéia, Salesópolis, state of São Paulo, Brazil. At first inspection it looks like a species of Drosophila belonging to the fasciola subgroup of the repleta group, mainly because of the fasciola-like pattern of fused spots on the thorax. However, mostly due to the quite distinct structures of the male terminalia, it seems to be more similar to one ungrouped and also spot-thoraxed South American species, Drosophila atalaia Vilela & Sene, 1982. Illustrations of the terminalia are also provided.

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Drosophila nappae sp. nov. , belonging to the subgroup I of the Drosophila tripunctata species group of the subgenus Drosophila, is described from flies of one strain established from several females collected from July 1994 through April 1995 at Morro Santana, Porto Alegre, state of Rio Grande do Sul, Brazil. This species has been misidentified during the past fifty years as Drosophila angustibucca (sensu Frota-Pessoa, 1954; non Duda, 1925, described from Costa Rica). Illustrations of male and female terminalia are also provided.