Uma Arquitetura Independente de Domínio e Plataforma para Apresentação de Comportamentos em Agentes Pedagógicos Animados

Este  artigo  apresenta  a  arquitetura  e  implementação  de  um  módulo  corpo  para  agentes pedagógicos  animados,  ou  seja,  do  módulo  responsável  por  exibir  os  comportamentos verbais  (falas)  e  corporais  (animações)  destes  agentes.  Esse  módulo  é  independente  de domínio e de aplicação, podendo ser inserido em outros ambientes educacionais voltados a outros domínios de  aplicação,  e  independente de plataforma, possibilitando que possa  ser executado em diferentes sistemas operacionais. Para  tanto, ele foi  implementado como um agente  reativo  desenvolvido  em  Java  (o  que  possibilita  que  seja  independente  de plataforma), que  se  comunica com  a mente utilizando  a  linguagem de  comunicação entre agentes FIPA-ACL. Essa última capacidade do agente, permite que ele possa  ser  inserido em outros ambientes  inteligentes de aprendizagem, desde que estes possuam a capacidade de se comunicar com ele via FIPA-ACL

Toponímia na escola: um olhar interdisciplinar sobre o bairro

O presente trabalho tece algumas considerações sobre como os estudos em toponímia podem contribuir para a promoção da cidadania e o sentimento de pertinência dos indivíduos à sua comunidade. Partimos de uma investigação sobre o conhecimento de aspectos da toponímia do bairro Nossa Senhora de Lourdes, no município de Caxias do Sul, RS. Com a aplicação de um questionário nas 5ª séries do Ensino Fundamental de uma escola localizada no bairro pesquisado, levantamos dados para verificar se o conhecimento dos nomes dos lugares constitui uma prática educativa de fato significativa para os educandos. Em seguida, elaboramos uma proposta de atividades, envolvendo as disciplinas de Língua Portuguesa, História, Geografia e Educação Artística, de modo a contribuir para uma melhor compreensão do bairro e da cultura local

Oxidative Stress: Noxious but Also Vital

The imbalance between reactive oxygen species (ROS) production and antioxidant defenses determines the condition called oxidative stress. When there is an increase in ROS production or a decrease in the antioxidant defenses, this systemic antioxidant/pro-oxidant imbalance may lead to the accumulation of oxidative damage, which, in turn, may lead to a modification of biomolecules. These consist of reactions resulting in protein adducts, DNA oxidation, and formation of lipid peroxides, which, in turn, reduce the cellular functional capacity and increase the risk of disease development. The body has natural scavenging systems against free radicals and other reactive species. However, sometimes the endogenous antioxidant capacity is exceeded by the production of ROS. When this occurs, exogenous antioxidants exert important function for the human health. These bioactive compounds act preventing and neutralizing the formation of new reactive species and free radicals. In some cases, an increase of ROS can help the host to resolve an infection or even to control the tumor growth. Finally, the levels of ROS can be perceived by signal transduction pathways involving known targets (i.e., p53, Ras, and NF-κB) and regulate physiopathological events such as the cellular cycle, apoptosis, and inflammation

SURVIVAL EVALUATION AND SOIL REINFORCEMENT CAPACITY OF FIVE REOPHYTES SPECIES OF THE ATLANTIC RAINFOREST BIOME

The aim of this study was to evaluate the survival rate, the vegetative development and vertical pullout resistance of Phyllanthus sellowianus, Salix humboldtiana, Gymnanthes schottiana, Cephallanthus glabratus and Ludwigia elegans propagated by live cuttings. The experiment was conducted at the Federal University of Santa Maria, RS. The experiment was installed in October 2015 and evaluated in June 2016. Experiment was conducted in randomized blocks design with use of 5 plant species and 3 replications. In each block were planted 3 live cuttings of each species, with the total of 45 cuttings for the 3 blocks. The space between plants was of 1 x 1 m. Live cuttings average diameter was 1.7 cm and 60 cm long. Were evaluated the survival rate, morphological variables from shoots, as well as the vertical pullout resistance for each species. The observed survival rates were: P. sellowianus (100%), S. humboldtiana (100%), G. schottiana (83%), %), C. glabratus (67%) e L. elegans (50%), which are statistically different among themselves by Chi-square test (χ ²) at 5% level of significance. The variables, length and diameter of shoots, as well as the vertical pullout resistance are statistically different between species by Tukey’s test at 5% level of significance, and the best results were observed for P. sellowianus and less favorable to L. elegans. The results showed that the evaluated species, excluding L. elegans, had from great to good survival rates. The species P. sellowianus and L. elegans had the major and minor soil mechanical reinforcement capacity, respectively.Keywords: Soil Bioengineering, land reclamation, soil stabilization, vegetative propagation

EVALUATION OF THE RELATIONSHIP BETWEEN MORPHOLOGICAL CHARACTERISTICS AND PULLOUT RESISTANCE OF LIVE CUTTINGS OF Phyllanthus sellowianus (Klotzsch) Müll.Arg.

This study aimed to evaluate the interdependence between the morphological characteristics and the pullout resistance of live cuttings of Phyllanthus sellowianus. Vertical pullout tests and shoot and root diameter and length measurements were performed in 144 live cuttings, with 2.5 cm in diameter and 50 cm in length, planted in 1x1 m spacing. The evaluations were performed at 60, 133, 186, 252, 320, and 421 days after planting, and the differences between mean growth and vertical pullout resistance values were analyzed using the Tukey test and linear regression equations. The plants showed the highest mean total shoot length (875 cm), total root length (405 cm), and vertical pullout resistance (1.5 kN) values between 252 and 421 days after planting. The plants increased their pullout resistance at an average rate of 0.20 kN/month in the most favorable growth periods, followed by average increments in the total shoot and root length of 118.4 and 57.1 cm/month, respectively. The pullout resistance showed positive correlations with all above- and below-ground morphological characteristics tested, but it was best explained by the cross-sectional area of shoots (mm²) which showed r² = 0.55. The biometric variables of P. sellowianus propagated from cuttings generally explained up to half of the variations in the species’ pullout resistance.

Análise do campo térmico e higrométrico no campus da Universidade Federal do Espírito Santo, Vitória (ES)

O presente estudo tem por objetivo analisar a temperatura e umidade relativa do ar no campus da Universidade Federal do Espírito Santo, localizado no bairro Goiabeiras, Vitória (ES). A pesquisa realizou-se em dois horários distintos: 9 e 15 horas entre os dias 08 e 09 de abril de 2015. Foram realizadas coletas de dados de temperatura do ar e umidade relativa do ar em 18 pontos no interior do campus, através de dois relógios Termo Higrômetros de leitura direta tipo MINIPA-MT214, em abrigos confeccionados a partir de cano de PVC, associados à leitura de um ponto fixo e um transecto móvel com registro a cada 10 minutos. Os resultados alcançados na pesquisa permitiram um conjunto de conclusões bastante surpreendentes, pois se verificou uma diferença térmica e higrométrica relativamente grande nos diferentes pontos pesquisados, considerando que o espaço lócus da pesquisa compreende uma área relativamente pequena do campus. Ao final, aferiu-se que os resultados corroboram e dialogam com as principais teorias das correntes que identificam as ações humanas como causas de significativas transformações no comportamento dos elementos da atmosfera, em especial da temperatura do ar e da umidade relativa do ar

Stakeholders´ Perception to Characterize the Start-ups Success

Startups are innovative companies that live in uncertain environments. This research aims to characterize the conditions and variables that influence the development of startups in the context of the Brazilian economy, so that understanding is reached about the characteristics of their businesses and how the environment acts on them. An evaluation instrument is developed that assists in the validation of critical factors, as well as the KPIs necessary for the practice of the instrument. The study presents, through bibliographic research, a theoretical proposal of critical success factors that receive the assessment of stakeholders who are in daily contact with the reality of startups. The results demonstrate the impact of critical success factors on the development of startups, according to the perception of stakeholders

Paracoccidioidomycosis in the northern region of Rio Grande do Sul

Background and Objectives: Paracoccidioidomycosis (PCM) is a systemic disease caused by the dimorphic fungus Paracoccidioides brasiliensis found in the tropical and subtropical regions of Latin America. This study aimed to perform a retrospective analysis of PCM cases from the northern region of Rio Grande do Sul, Brazil. Methods: A total of 200 records of PCM cases from 1995 to 2015 were analyzed, diagnosed at the local reference pathology laboratory. Results: Of the patients, 185 were male and 15 female. Patients ranged in age from 31 to 80 years, the largest proportion (35,5%) being aged between 51 and 60 years and living or working in the countryside. Clinical samples were mostly obtained from the oral cavity, followed by the oropharynx, lungs, brain, skin, and prostate. Conclusion: PCM is endemic in the south of Brazil, as the local economy is largely based on agricultural activities, favoring the contact of the population with P. brasiliensis. Due to the great similarity between PCM symptoms and other respiratory diseases, the differential diagnosis is essential for the correct treatment of the disease and to avoid its progression