Criação de zonas de alta permeabilidade em fraturas: modelagem numérica do Lajedo de Soledade, Formação Jandaíra, Bacia Potiguar

The fracturing in carbonate rocks has been attracting increasingly attention due to new oil discoveries in carbonate reservoirs. This study investigates how the fractures (faults and joints) behave when subjected to different stress fields and how their behavior may be associated with the generation of karst and consequently to increased secondary porosity in these rocks. In this study I used satellite imagery and unmanned aerial vehicle UAV images and field data to identify and map faults and joints in a carbonate outcrop, which I consider a good analogue of carbonate reservoir. The outcrop comprises rocks of the Jandaíra Formation, Potiguar Basin. Field data were modeled using the TECTOS software, which uses finite element analysis for 2D fracture modeling. I identified three sets of fractures were identified: NS, EW and NW-SE. They correspond to faults that reactivate joint sets. The Ratio of Failure by Stress (RFS) represents stress concentration and how close the rock is to failure and reach the Mohr-Coulomb envelopment. The results indicate that the tectonic stresses are concentrated in preferred structural zones, which are ideal places for carbonate dissolution. Dissolution was observed along sedimentary bedding and fractures throughout the outcrop. However, I observed that the highest values of RFS occur in fracture intersections and terminations. These are site of karst concentration. I finally suggest that there is a relationship between stress concentration and location of karst dissolution in carbonate rocks.

Criação de zonas de alta permeabilidade em fraturas: modelagem numérica do Lajedo de Soledade, Formação Jandaíra, Bacia Potiguar

The fracturing in carbonate rocks has been attracting increasingly attention due to new oil discoveries in carbonate reservoirs. This study investigates how the fractures (faults and joints) behave when subjected to different stress fields and how their behavior may be associated with the generation of karst and consequently to increased secondary porosity in these rocks. In this study I used satellite imagery and unmanned aerial vehicle UAV images and field data to identify and map faults and joints in a carbonate outcrop, which I consider a good analogue of carbonate reservoir. The outcrop comprises rocks of the Jandaíra Formation, Potiguar Basin. Field data were modeled using the TECTOS software, which uses finite element analysis for 2D fracture modeling. I identified three sets of fractures were identified: NS, EW and NW-SE. They correspond to faults that reactivate joint sets. The Ratio of Failure by Stress (RFS) represents stress concentration and how close the rock is to failure and reach the Mohr-Coulomb envelopment. The results indicate that the tectonic stresses are concentrated in preferred structural zones, which are ideal places for carbonate dissolution. Dissolution was observed along sedimentary bedding and fractures throughout the outcrop. However, I observed that the highest values of RFS occur in fracture intersections and terminations. These are site of karst concentration. I finally suggest that there is a relationship between stress concentration and location of karst dissolution in carbonate rocks.

Análise sequencial de criação de situações de finalização no basquetebol

Relatório de Estágio apresentado para a obtenção do grau de Mestre em Desporto com especialização em Treino Desportivo

Perfil sorológico contra Rickettsia spp e Leptospira spp e infestação de carrapatos em suínos mantidos sob diferentes sistemas de criação

The various types of pig farming, intensive and extensive, expose them to pig parasites but also to those from the environment of the breeding site. In this work was evaluated the exposure of bigs bred in technified farms, SISCAL (intensive breeding system in pens) and not technified (backyard) to leptospira, ticks and rickettsiae. Blood sera were analyzed to determine titers of antibodies anti-Leptospira by SAM technique and antibodies anti-rickettsial by IFA, pigs were inspected for ticks and in their breeding environment and surrounding areas (pastures and riparian vegetation), ticks were collected by the flannel dragging technique. In the farms of pigs 10.4% had anti-Leptospira antibodies, followed by SISCAL (8%) and backyard animals (2.5%). The serovars found were Bratislava, Pomona, serovar, Canicola and Icterohaemorrhagiae. Higher percentage of properties with pigs raised outdoors (SISCAL) had tick infested animals (20%) than those raised in backyard (6.7%), while commercial farms had no infested pigs nor infested breeding place. In both SISCAL and backyard pig breeding properties ticks were observed at the breeding site environment. Tick infestations were detected in areas surrounding pig breeding site in all three husbandry suystems. Ticks found were all Amblyomma scultpum nymphs or adults with the exception of one of Amblyomma parvum adult. In relation to anti-rickettsia serology to five Rickettsia species, 55.2% of pigs from commercial farms reacted to al least one species, backyard pigs reacted to 89.7% and all pigs of SISCAL showed anti-rickettsia titers. Consecutive tick sampling (June 2014 to February 2016) in SISCAL FAZU in Uberaba, showed the establishment A. sculptum ticks maintained by domestic pigs. These observations demonstrate the ability the pigs to maintain populations of A. sculptum at a favorable environment and may indicate a new trend in environmental infestations by this species of tick. Exposure to Leptospira and Rickettsia demonstrated the potential pigs exposure and transmission of important diseases in public health.

Processos de imitação-criação como constituidores da práxis pedagógica: uma intervenção didático-formativa com o formador de professores

The research deals with the constitution of the pedagogical praxis of a teacher trainer, understood as objectification of theoretical and practical unity in the teaching field. It was achieved by means of a didactic-training intervention. The research problem: as a teacher trainer in a continuous training process is a pedagogical praxis, outlined to the overall objective: investigate the establishment of the pedagogical praxis of teacher trainer in a continuous formation process. The specific objectives were: 1) outline principles and foundations theoretical-methodological course of intervention research on appropriate teaching assumptions of historical-cultural theory; 2) systematic principles of constitution of the pedagogical praxis of a teacher trainer and 3) synthesize foundations of continued training of teacher trainers in view of the historical-cultural theory, to collaborate with design of institutional policies for continuing training of university teachers. The research was developed at the Federal University of Triângulo Mineiro University - UFTM, with teachers who work in their degree courses. It was developed in three stages: diagnosis, didactic-formative intervention and analysis of data. In the diagnostic step attended five teacher educators of degrees in: history, geography, physics, chemistry and letters. At this stage were used identification questionnaires, interviews, classroom observation and document analysis. In the next stage, with participation of a trainer, it was held educational-training intervention understood as the collective research-training process that is involved intervening in teaching with the development of interdependent and simultaneous actions trainings, planning and implementation of educational activities and study, classroom observation and evaluation from the perspective of dialectical unity in order to contribute to the integral development of teachers and students. The intervention were also held interviews and document analysis. The last stage of the research was the analysis of the data. In the diagnosis of education, among other analyzes, three references were found of the trainer's training-action: memorized references, empirical and praxis. It was the analysis of the references of the trainer's training-action that guided referrals ways of teaching-training intervention. As a result, it was concluded that the teacher educator is their pedagogical praxis in the dialectical units theoretical and practical appropriation of concepts and imitation-creation. Were the two principles analyzed in the research. It was also systematized some essential elements of the formation of the teacher educator: the needs of trainers are decisive in the choice of concepts that will be appropriate; the organization of the training process should take place hand in hand with planning and development classes; the theory need to be experienced in training so that appropriation/objectification of education come true, and also, participants must be strengthened as a collective studies, since we have not learned by linearity but connections. It is hoped that the research will create opportunities to deepen the debate on the continuing education of teacher educators and contribute to scientific production in the area.

Influencia del manejo reproductivo sobre los índices productivos de una explotación intensiva de ovino lechero de raza Lacaune de España. Bases para la mejora de la productividad

La raza ovina lechera Lacaune, originaria de Francia a partir de la fusión de diferentes razas locales, es la oveja de la leche que se utiliza para la elaboración del queso Roquefort. Esta raza, sometida desde hace más de 30 años a un riguroso esquema de selección genética, se ha convertido en una de las razas ovinas lecheras de mayor rendimiento del mundo, con un promedio de producción de leche acumulada de 283 l en lactaciones medias de 160 días. Desde 1992, 17 países, entre ellos España, han importado de Francia animales seleccionados de raza Lacaune a través de la asociación oficial de criadores. Los sistemas productivos en estos países no enmarcados dentro de la región de Roquefort son muy distintos al manejo tradicional impuesto para la Denominación de Origen (D.O.) de este queso, y sin embargo, la información referente a índices y objetivos en los sistemas productivos de ovejas de raza Lacaune en manejo intensivo es escasa. Si bien, aunque disponemos de algunos datos preliminares respecto a la producción media de esta raza en España, descritos por la cooperativa COVAP, de medias de 405 litros por lactación con lactaciones medias de 175 días de duración, y por la Asociación Española de la Raza Lacaune (AESLA), con datos medios de 304 kg de leche por lactación estandarizada a 160 días de ordeño, carecemos de medidas estandarizadas generales, y de indicaciones de manejo adaptadas a estas ovejas, grandes productoras...

Refletindo sobre a criação e a utilização do dicionário como estratégia de enriquecimento lexical no 1.º CEB

O presente relatório foi realizado no âmbito do Mestrado em Educação Pré-Escolar e Ensino do 1.º Ciclo do Ensino Básico. Encontra-se organizado em duas partes, a primeira parte referente à Dimensão Reflexiva e a segunda parte à Dimensão Investigativa. A primeira parte consiste na apresentação do percurso vivenciado nos contextos de Educação de Infância e de 1.º Ciclo do Ensino Básico, fazendo uma análise crítica, reflexiva e fundamentada das situações vividas que proporcionaram diversas aprendizagens a nível profissional, pessoal e social. A segunda parte consiste na apresentação de um estudo investigativo de caráter qualitativo desenvolvido numa turma de 2.º ano de escolaridade. Este estudo pretende perceber o impacto da criação e utilização do dicionário no desenvolvimento lexical dos alunos, tendo como objetivos: (i) Compreender o impacto da estratégia didática (dicionário) para o enriquecimento lexical; (ii) Perceber de que forma os alunos utilizam o dicionário quando o fazem com ou sem orientação do professor; (iii) Refletir sobre a utilização do dicionário como estratégia de enriquecimento lexical. Os dados recolhidos revelam que a estratégia utilizada teve um impacto positivo, na medida em que, o capital lexical da maioria dos alunos foi significativamente aumentado, contudo, é também evidente que os alunos utilizavam o dicionário com maior frequência quando o faziam com orientação do professor. Em relação à utilização do dicionário como estratégia de enriquecimento lexical revelou-se que turmas nos primeiros anos de escolaridade apresentam dificuldades na seleção dos significados adequados para cada contexto, sendo necessário treiná-las nesse sentido.

A caminho da fase preparatória da criação de um Core Set para a obesidade infantojuvenil: revisão sistemática da literatura

O trabalho apresentado prende-se na necessidade de criação de Core Sets específicos para Crianças e Jovens, sendo que o objetivo deste representa a proposta de criação do mesmo, direcionado para a população infantojuvenil com Obesidade. Deste modo, desenvolveu-se uma Revisão Sistemática, parte integrante da 1ª fase da criação de um Core Set (CS). Para este efeito, foram recolhidos 570 artigos das bases de dadosMEDLINE/PubMed, ScienceDirect, b-on, PEDro, PROSPERO, dos quais 187 representam a amostra final de estudos incluídos, na qual a faixa etária da população está compreendida entre os 2 e os 19 anos, com Índice de Massa Corporal (IMC)≥ao percentil de 95 para a idade e género, publicados em Inglês no máximo há 10 anos. Dos 187 artigos, foram levantadas 1856 necessidades, das quais se ligaram 963 conceitos àClassificação Internacional da Funcionalidade e Incapacidade de Crianças e Jovens (CIF-CJ), identificando-se desta forma 109 categorias. Destas obteve-se 11,92% de categorias com saturação no domínio das Funções e Estruturas; 6,42% nas Atividades e Participação e 8,26% nos Fatores Contextuais, o que se traduz no total de 29 categorias possíveis de integração num futuroCS.