Oral bacterial microbiota and traumatic injuries of free-ranging Phrynops geoffroanus (Testudines, Chelidae) in southeastern Brazil

During 2006 and 2007, we collected free-ranging Phrynops geoffroanus, from two anthropogenically altered rivers in southeastern Brazil. Oral microbiological samples were taken for isolation of aerobic and facultative anaerobic bacteria; a physical examination was performed;and we evaluated possible effects on the turtles’ health. Twenty-nine species of bacteria were isolated in Piracicaba River turtles (n=10), and twenty-four species in Piracicamirim stream turtles (n=8), most of them gram-negative. In both sites, potential pathogens for reptiles were: Escherichia coli, Klebsiella pneumoniae, Enterobacter agglomerans, Citrobacter freundii, and Bacillus sp. Although boatpropeller lesions were common on the carapace of the turtles, we have not found turtles with signs of clinical diseases. The oral bacterial microbiota of P. geoffroanus inhabiting the Piracicaba River basin are composed of a diverse microbe spectrum, and long-term studies of the effects of pollution and traumatic injuries on this population and its microbial flora are warranted

PSICOLOGIA, ARTE E POTÊNCIA NO CAPS: oficinas de teatro do oprimido como produtoras de vida

Dentre as estratégias pertencentes aos Centros de Atenção Psicossocial (CAPS) encontram-se as oficinas terapêuticas que visam uma reabilitação social e produção de vida nos corpos (AVILA; FONSECA. 2007). As oficinas terapêuticas expressivas são entendidas catalisadores das experiências psicológicas, apontando para o caráter de importante potencializador dos processos de subjetivação

Microbiota bacteriana oral e lesões traumáticas no cágado Phrynops geoffroanus (Testudines, Chelidae) no sudeste do Brasil

Entre 2006 e 2007, coletamos amostras microbiológicas da cavidade oral de cágados Phrynops geoffroanus de vida livre, em dois rios antropizados da região sudeste do Brasil, para o isolamento de bactérias aeróbicas e anaeróbicas facultativas, e realizamos um exame físico e avaliamos possíveis efeitos sobre o estado de saúde dos animais. Vinte e nove espécies de bactérias foram isoladas em cágados do rio Piracicaba (n=10), e vinte e quatro espécies em animais do ribeirão Piracicamirim (n=8), a maioria delas gram-negativas. Em ambos os sítios estudados foram isolados patógenos potenciais para répteis, como Escherichia coli, Klebsiella pneumoniae, Enterobacter agglomerans, Citrobacter freundii e Bacillus sp. Embora lesões na carapaça dos cágados, causadas por hélices de barcos, foram um achado comum no exame físico, não encontramos animais com sinais clínicos de doenças. A microbiota bacteriana oral dos cágados que habitam a bacia do rio Piracicaba é composta por um amplo espectro de bactérias, e estudos de longa duração sobre os efeitos da poluição e de lesões traumáticas nesta população e de sua microbiota oral são recomendados.During 2006 and 2007, we collected free-ranging Phrynops geoffroanus, from two anthropogenically altered rivers in southeastern Brazil. Oral microbiological samples were taken for isolation of aerobic and facultative anaerobic bacteria; a physical examination was performed; and we evaluated possible effects on the turtles' health. Twenty-nine species of bacteria were isolated in Piracicaba River turtles (n=10), and twenty-four species in Piracicamirim stream turtles (n=8), most of them gram-negative. In both sites, potential pathogens for reptiles were: Escherichia coli, Klebsiella pneumoniae, Enterobacter agglomerans, Citrobacter freundii, and Bacillus sp. Although boat propeller lesions were common on the carapace of the turtles, we have not found turtles with signs of clinical diseases. The oral bacterial microbiota of P. geoffroanus inhabiting the Piracicaba River basin are composed of a diverse microbe spectrum, and long-term studies of the effects of pollution and traumatic injuries on this population and its microbial flora are warranted

Low-cost thermal imager for plant phenotyping.

This work uses a Flir Lepton 3 longwave infrared imager integrated with a Raspberry Pi computer to produce thermal images of crops. The longwave infrared sensor can detect the thermal radiation emitted by objects near room temperature and then determine its temperature.Editores: Paulo Sérgio de Paula Herrmann Junior, Paulino Ribeiro Villas Boas

Load Index Metrics for an Optimized Management of Web Services: A Systematic Evaluation

The lack of precision to predict service performance through load indices may lead to wrong decisions regarding the use of web services, compromising service performance and raising platform cost unnecessarily. This paper presents experimental studies to qualify the behaviour of load indices in the web service context. The experiments consider three services that generate controlled and significant server demands, four levels of workload for each service and six distinct execution scenarios. The evaluation considers three relevant perspectives: the capability for representing recent workloads, the capability for predicting near-future performance and finally stability. Eight different load indices were analysed, including the JMX Average Time index (proposed in this paper) specifically designed to address the limitations of the other indices. A systematic approach is applied to evaluate the different load indices, considering a multiple linear regression model based on the stepwise-AIC method. The results show that the load indices studied represent the workload to some extent; however, in contrast to expectations, most of them do not exhibit a coherent correlation with service performance and this can result in stability problems. The JMX Average Time index is an exception, showing a stable behaviour which is tightly-coupled to the service runtime for all executions. Load indices are used to predict the service runtime and therefore their inappropriate use can lead to decisions that will impact negatively on both service performance and execution cost

A concepção dos professores de química sobre o currículo no ensino médio noturno na cidade de Jequié-Bahia

O presente estudo foi realizado junto a professores de química de colégios estaduais da cidade de Jequié que teve como principal objetivo identificar as concepções dos mesmos sobre o currículo escolar. O foco da pesquisa é o ensino médio oferecido no período noturno, tanto no ensino regular como na educação de jovens e adultos. Através dos resultados obtidos foi possível notar que o maior diferencial que caracteriza o ensino noturno é o próprio aluno, e os professores, para realizarem seu trabalho fazem uso de adaptações em suas atividades que, por vezes, acabam tornando-se normas a serem seguidas. Por fim chamam a atenção sobre a importância de um currículo técnico para o ensino noturno que respeite as características da clientela que frequentam as aulas nesse período, além de uma maior valorização das experiências de professores na intenção de elaborar esse currícul

Low-cost thermal field mapping.

This project is originally designed to be used in rice genetic enhancement fields, but it can be used for other purposes, for example, to verify if any part of the tillage has a disease, when comparing the thermal signature of the species with the thermal map.Editores: Paulo Sérgio de Paula Herrmann Junior, Paulino Ribeiro Villas Boas

Spin-Polarized STM for a Kondo adatom

We investigate the bias dependence of the tunneling conductance between a spin-polarized (SP) scanning tunneling microscope (STM) tip and the surface conduction states of a normal metal with a Kondo adatom. Quantum interference between tip-host metal and tip-adatom-host metal conduction paths is studied in the full range of the Fano parameter $q$. The spin-polarized STM gives rise to a splitting of the Kondo peak and asymmetry in the zero-bias anomaly depending on the lateral tip-adatom distance. For increasing lateral distances, the Kondo peak-splitting shows a strong suppression and the spin-polarized conductance exhibits the standard Fano-Kondo profile.Comment: new version with improved discussion. added one figure. 12 pages (one-column) + 5 figure

Solid state electrochromic display based on polymer electrode-polymer electrolyte interface

The electropolymerization of ortho-toluidine and ortho-anisidine gave uniform electroactive polymer films which were analysed by cyclic voltammetry, impedance and uv-vis absorption spectra. These films exhibit a reversible electrochemical response during cyclic voltammetry experiments in aqueous, non-aqueous and polymer electrolytes. Their electrochromic efficiency is high in aqueous and non-aqueous electrolytes but decreases in the polymer electrolyte. A solid state cell having the configuration ITO/TiO2-CeO2/LiN(SO2CF3)2-PEO complex/polymer/ITO, has been assembled. The transmittance variation of this system between the oxidized and reduced state is about 20% at 632.8 nm