La devoción al Divino Niño en Quito: una etnografía del consumo popular religioso

El presente estudio da cuenta del consumo cultural de una devoción religiosa en el contexto urbano. Analiza etnográficamente la devoción al Divino Niño Jesús en la ciudad de Quito. La metodología utilizada proviene de la antropología, la historia cultural y la semiótica. Realiza una descripción, a partir de testimonios y literatura popular religiosa, del origen de la imagen del Divino Niño Jesús, su iconografía y la manera como esta imagen religiosa se ha difundido y es usada por amplios y diferentes sectores populares a nivel urbano. Elabora una etnografía de los santuarios del Divino Niño erigidos en la ciudad e insiste en la importancia que adquieren estos espacios en la configuración de un territorio sagrado superpuesto al mapa de la ciudad. Finalmente, el estudio da cuenta de las apropiaciones, usos y prácticas ciudadanas de la imagen del Divino Niño; reseña los desacuerdos que se producen en la veneración y el consumo cultural de esta imagen, y evidencia los desplazamientos que han experimentado otras advocaciones con la irrupción de esta devoción en el contexto quiteño.

Para leer a Guillermo Valencia después de Guillermo Valencia

El autor se propone leer al poeta colombiano Guillermo Valencia al margen de la pasión que su credo parnasiano y su rol de hombre público despertaron en un primer momento, y del odio posterior de sus opositores estéticos y contradictores políticos –que lo acusan de posturas conservadoras y aristocratizantes. Su obra literaria y su obra política han sido leídas de manera que la una justifica a la otra, y viceversa. El autor defiende el aporte de Valencia a la modernidad literaria colombiana como traductor y difusor de poesía alemana, inglesa y francesa, así como de obras en chino y árabe. Plantea también que su obra poética debe estudiarse en función de sus logros en el lenguaje, y del vínculo que representa entre la tradición poética colombiana y la producción actual.

PHB Biosynthesis in Catabolite Repression Mutant of Burkholderia sacchari

Due to the effect of catabolite repression, sugar mixtures cannot be metabolized in a rapid and efficient way implicating in lower productivity in bioprocesses using lignocellulosic hydrolysates. In gram-negative bacteria, this mechanism is mediated by the phosphotransferase system (PTS), which concomitantly internalizes and phosphorylates sugars. In this study, we isolated a UV mutant of Burkholderia sacchari, called LFM828, which transports hexoses and pentoses by a non-PTS uptake system. This mutant presented released glucose catabolite repression over the pentoses. In mixtures of glucose, xylose, and arabinose, specific growth rates and the specific sugar consumption rates were, respectively, 10 and 23% higher in LFM828, resulting in a reduced time to exhaust all sugars in the medium. However, in polyhydroxybutyrate (PHB) biosynthesis experiments it was necessary the supplementation of yeast extract to maintain higher values of growth rate and sugar consumption rate. The deficient growth in mineral medium was partially recovered by replacing the ammonium nitrogen source by glutamate. It was demonstrated that the ammonium metabolism is not defective in LFM828, differently from ammonium, glutamate can also be used as carbon and energy allowing an improvement on the carbohydrates utilization for PHB production in LFM828. In contrast, higher rates of ammonia consumption and CO(2) production in LFM828 indicate altered fluxes through the central metabolism in LFM828 and the parental. In conclusion, PTS plays an important role in cell physiology and the elimination of its components has a significant impact on catabolite repression, carbon flux distribution, and PHB biosynthesis in B. sacchari.

Estudo da densidade populacional do bugio-ruivo Alouatta guariba clamitans (Cabrera, 1940) (Primates, Atelidae) nas formações florestais do Morro Campista, Parque Estadual de Itapuã, Viamão, RS

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Gochnatia polymorpha (Less.) Cabrera (Asteraceae) changes in leaf structure due to differences in light and edaphic conditions

Gochnatia polymorpha (Less.) Cabrera é uma espécie de Asteraceae com ampla distribuição no bioma cerrado, sendo encontrada em diversas fisionomias florestais da região sudeste do Brasil. O presente estudo descreve alguns caracteres anatômicos foliares dessa espécie e os analisa quantitativamente em função de sua ocorrência nas formações florestais e também das diferenças de luminosidade. Foram encontradas diferenças quantitativas em todos os parâmetros anatômicos analisados. Os resultados demonstram que a alta plasticidade anatômica foliar nesta espécie pode ser considerada como uma vantagem adaptativa que a permite ocorrer em diversos ambientes do cerrado.

Aspects of the sexual reproduction of the Brazilian arnica (Solidago chilensis Meyen var. megapotamica (D.C.) Cabrera - Asteraceae)

The species is a very popularly used plant as woundwort. Leaves, top flowers and rhizomes are used. The objective of this work is a contribution to the germination study, photoblastism and more adequate temperature for reproduction of the species. The best temperature for the germination was found to be 20°C and no seeds germinated under continuous darkness, within 14 days; therefore, the seeds are positive photoblastics. The seed germination percentage was low, in relation to the mass of the achene produced, varying from 8,2 to 20,0%. The alternated temperatures of 20° and 30°C did not influence the seed germination and the average of the weight of 100 seeds was 0,026 1 g.

Indoor radon measurements in six Latin American countries

Most of the natural radiation dose to man comes from radon gas and its progeny. Several countries have established national institutions and national programs in charge of the study of radon and its connection with lung cancer risk and public health. In this paper an indoor radon measurements in Latin American countries is presented. The participants in this work were from Argentina, Brazil, Ecuador, Mexico, Peru and Venezuela. Many different techniques are used in this common effort, and the indoor radon levels in specific locations in each of the participant countries are presented.

Comentarios a la presentación de Guillermo O'Donnell "Los desafíos actuales de la democracia y el desarrollo"

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Comentários a presentação do Guillermo O'Donnell "Os desafios atuais da democracia e do desenvolvimento"

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A computer vision approach to quantify leaf anatomical plasticity: A case study on gochnatia polymorpha (less.) cabrera

Inferences about leaf anatomical characteristics had largely been made by manually measuring diverse leaf regions, such as cuticle, epidermis and parenchyma to evaluate differences caused by environmental variables. Here we tested an approach for data acquisition and analysis in ecological quantitative leaf anatomy studies based on computer vision and pattern recognition methods. A case study was conducted on Gochnatia polymorpha (Less.) Cabrera (Asteraceae), a Neotropical savanna tree species that has high phenotypic plasticity. We obtained digital images of cross-sections of its leaves developed under different light conditions (sun vs. shade), different seasons (dry vs. wet) and in different soil types (oxysoil vs. hydromorphic soil), and analyzed several visual attributes, such as color, texture and tissues thickness in a perpendicular plane from microscopic images. The experimental results demonstrated that computational analysis is capable of distinguishing anatomical alterations in microscope images obtained from individuals growing in different environmental conditions. The methods presented here offer an alternative way to determine leaf anatomical differences. © 2013 Elsevier B.V.

Evaluacion de 10 años de planificacion de la familia en Chile

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Achados clínicos de afecções orais em bugios ruivos (Alouatta guariba clamitans) (Cabrera, 1940)

Pós-graduação em Medicina Veterinária - FMVZ

Avaliação anatômica e tomografica das estruturas abdominais do Alouatta guariba clamitans (Bugio-Ruivo – Cabrera,1940)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)