Sistema de indicadores para a avaliação da sustentabilidade hídrica da atividade canaviera.

O objetivo deste trabalho é apresentar um estudo de caso realizado na Bacia Hidrográfica do Rio Verde (BHRV) para demonstrar a aplicabilidade do Sistema de Indicadores - SISHidro-Cana - para a avaliação da sustentabilidade hídrica da cultura canavieira, proposta por Ferraz (2012), como uma metodologia para avaliar a disponibilidade de água de bacias hidrográficas para subsidiar a proposição de políticas setoriais, ordenação territorial, planejamento agrícola e gestão dos recursos hídricos

From center-vortex ensembles to the confining flux tube

In this review, we discuss the present status of the description of confining flux tubes in SU(N) pure Yang-Mills theory in terms of ensembles of percolating center vortices. This is based on three main pillars: modelling in the continuum the ensemble components detected in the lattice, the derivation of effective field representations, and contrasting the associated properties with Monte Carlo lattice results. The integration of the present knowledge about these points is essential to get closer to a unified physical picture for confinement. Here, we shall emphasize the last advances, which point to the importance of including the nonoriented center-vortex component and non-Abelian degrees when modelling the center-vortex ensemble measure. These inputs are responsible for the emergence of topological solitons and the possibility of accommodating the asymptotic scaling properties of the confining string tension

Desenvolvimento e caracterização de cereal matinal extrudado de mandioca enriquecido com concentrado proteico de soro de leite.

O objetivo deste trabalho foi desenvolver e caracterizar um cereal matinal extrudado de mandioca enriquecido com concentrado proteico de soro de leite. O extrudado foi formulado adicionando-se 15% de concentrado proteico de soro de leite à farinha de mandioca. As matérias-primas e o cereal matinal obtido foram analisados quanto às características físico-químicas. Para o cereal matinal desenvolvido, avaliaram-se também suas características microbiológicas e sensoriais. O extrudado estudado apresentou índice de expansão de 11,49 e densidade aparente de 0,21 g.cm'3. Quanto à análise sensorial, o cereal matinal avaliado obteve notas médias de aceitação, para todos os atributos avaliados, situadas no intervalo de 7,63 a 8,05, que corresponde às categorias "gostei moderadamente" e "gostei muito". Para a intenção de compra, 91,70% dos provadores opinaram que certamente ou possivelmente comprariam o produto. O emprego de mandioca e concentrado proteico de soro de leite é uma alternativa para a elaboração de cereal matinal extrudado, obtendo-se um produto final com boas características sensoriais e nutricionais

Reevaluación de la tafonomía de las asociaciones conservadas in situ de Cloudina en la Formación de Tagatiya Guazu, Grupo ediacárico de Itapucumi, Paraguay

The fossil assemblage from the Tagatiya Guazu Formation (Ediacaran Itapucumi Group, Paraguay) represents a unique opportunity to investigate paleoecological parameters and contribute with taxonomic information regarding Cloudina associations in SW Gondwana.La asociación fósil de la Formación de Tagatiya Guazu (Grupo ediacárico de Itapucumi, Paraguay) representa una oportunidad única para investigar los parámetros paleoecológicos y contribuir con información taxonómica sobre las asociaciones de Cloudina en Gondwana SW

Hepatite Sifilítica: uma Complicação Rara da Sífilis Secundária. O Reporte de um Caso

Syphilis is a sexually transmitted disease caused by Treponema pallidum, progressing through active and latent stages if left untreated. Hepatic involvement can occur in secondary syphilis, but this is an uncommon complication, with few published case reports. A 34-year-old man without significant medical history was admitted to the gastroenterology department with a 2-week history of unexplained jaundice and acute cholestatic hepatitis. He also presented with erythematous papules and plaques in the genital area, suggestive of secondary syphilis. T. pallidum hemaglutination assay and venereal disease research laboratory test were both positive, the latter with a 1:16 titer. The diagnosis of secondary syphilis with hepatic involvement was considered. The improvement of cutaneous and laboratory findings after intramuscular benzathine penicillin injection supported this hypothesis. Symptomatic cholestatic hepatitis is a rare feature of the systemic spectrum of secondary syphilis. The clinical and laboratorial response after penicillin treatment is a strong clue for this diagnosis.info:eu-repo/semantics/publishedVersio

Masking of an auditory behaviour reveals how male mosquitoes use distortion to detect females

The mating behaviour of many mosquito species is mediated essentially by sound: males follow and mate with a female mid-flight by detecting and tracking the whine of her flight-tones. The stereotypical rapid frequency modulation (RFM) male behaviour, initiated in response to the detection of the female's flight-tones, has provided a means of investigating these auditory mechanisms while males are free-flying. Mosquitoes hear with their antennae, which vibrate to near-field acoustic excitation. The antennae generate nonlinear vibrations (distortion products, DPs) at frequencies that are equal to the difference between the two simultaneously presented tones, e.g. the male and female flight-tones, which are detected by mechanoreceptors in the auditory Johnston's organ (JO) at the base of the antenna. Recent studies indicated the male mosquito's JO is tuned not to the female flight-tone, but to the frequency difference between the male and female flight-tones. To test the hypothesis that mosquitoes detect this frequency difference, Culex quinquefasciatus males were presented simultaneously with a female flight-tone and a masking tone, which should suppress the male's RFM response to sound. The free-flight behavioural and in vivo electrophysiological experiments revealed that acoustic masking suppresses the RFM response to the female's flight-tones by attenuating the DPs generated in the nonlinear vibration of the antennae. These findings provide direct evidence in support of the hypothesis that male mosquitoes detect females when both are in flight through difference tones generated in the vibrations of their antennae owing to the interaction between their own flight-tones and those of a female