Forestry investment projects for the biomass production of the eucalyptus bole can be characterized by uncertain environments, which result in economic risk to the forest producer, however that can be measured by applying probabilistic techniques. This was our motivation and justification for analyzing the economic-financial viability of different silvicultural practices for eucalyptus bole biomass production under conditions of uncertainties, running Monte Carlo method for risk management. The experiment was carried out in the state of São Paulo, Brazil, using 5 treatments with spacings of 3 m × 2 m; 3 m × 1 m; 1.5 m × 2 m; 3 m × 0.5 m; and 1.5 m × 1.0 m, i.e., different spacings between planting lines and plants. These treatments were characterized as investment projects. To develop stochastic models, we relied on technical-economic deterministic variables. We evaluated the investment projects based on the cash flows under conditions of uncertainty, discounted at the attractiveness rate calculated by capital asset pricing model. With the results of these economic flows, the net present value, the modified internal rate of return and the profitability index values were estimated, commonly used in the analysis of investments in projects. The results showed that based on economic metrics, the three-year rotation cycle for forest stands for biomass production of the main bole of eucalyptus, with a spacing of three meters between rows and two meters between plants, had an 83% probability of economic success. The sensitivity analysis showed that the bole biomass of eucalyptus is the most important variable for determining the economic-financial feasibility of the investment project.
The present work presents the results of an investigation of the perceptions about the Plant Diversity of 26 students of the sixth grade of Elementary School in a public school in the city of Uruguaiana/RS. The objectives of this work were to investigate the prior knowledge of students in the sixth year of elementary school regarding the concepts of living beings and plants and to propose a pedagogical action, which would collectively promote discussions about the Teaching of Botany and the reframing of concepts based on in mediation of content. The methodology used was the five steps of the Historical-Critical Pedagogy of Dermeval Saviani, and the productions of the investigated, drawings, interviews and activities were characterized as object of analysis, according to Bardin (2011). The results obtained evidenced that the human being represents the previous conception of being alive of the majority of the students, being the conception of vegetables turned only to the feeding. It was verified that although Vegetal Diversity is very close to students in daily life, they don’t know how to name their basic structures and functions. There was no increase in knowledge regarding the concept of vegetables, however there was an appropriation of the concept of living being much more comprehensive in the final social practice.
A discussão das concepções de Meio Ambiente e de Educação Ambiental dos professores da educação básica se torna importante a medida que poderão influenciar no planejamento e na execução de projetos ambientais desenvolvidos nas escolas. O presente trabalho visa analisar as concepções prévias dos multiplicadores de EA e MA das escolas envolvidas em um projeto de Ampliação da Educação Ambiental nas Escolas Municipais de Uruguaiana-RS, bem como as propostas de projetos que serão apresentadas e desenvolvidas ao longo do ano de 2018. The discussion of the concepts of Environment and Environmental Education of primary education teachers becomes important as they may influence the planning and execution of environmental projects developed in schools. The present work aims at analyzing the previous conceptions of EA and MA multipliers of the schools involved in an Environmental Education Expansion project in the Municipal Schools of Uruguaiana-RS, as well as the project proposals that will be presented and developed during the year 2018. La discusión de las concepciones de Medio Ambiente y de Educación Ambiental de los profesores de la educación básica se vuelve importante a medida que pueden influir en la planificación y la ejecución de proyectos ambientales desarrollados en las escuelas. El presente trabajo busca analizar las concepciones previas de los multiplicadores de EA y MA de las escuelas involucradas en un proyecto de Ampliación de la Educación Ambiental en las Escuelas Municipales de Uruguaiana-RS, así como las propuestas de proyectos que serán presentadas y desarrolladas a lo largo del año 2018.
Seja no modelo presencial ou no remoto, acreditamos que a escolha pelas melhores práticas pedagógicas são importantes decisões que todos os docentes precisam tomar. Em meio a era digital, vários são os canais, redes sociais, aplicativos que facilitam a interação e compartilhamento de conteúdo voltados para o ensino, sendo que, saber utilizá-los é indispensável para todos que trabalham na educação. Neste contexto, este estudo buscou diagnosticar as possíveis contribuições proporcionadas pelas lives na formação continuada de professores. Metodologicamente, trata-se de uma pesquisa qualitativa, delineada a partir de um estudo de caso, que foi desenvolvida no 2º semestre de 2021, com um grupo de professores de Itaqui-RS, tendo como ferramenta de coleta de dados um questionário semi-estruturado enviado via Google Forms. Como resultados, foi possível inferir que a maioria dos respondentes assistiram mais de 5 lives até o momento, com alto grau de satisfação, que as mantenedoras ofertaram lives de formação e que estas foram muito satisfatórias, pois ofereceram suporte a um modelo totalmente novo e desconhecido de atuação em sala de aula. Acreditamos que esses novos espaços formativos irão permanecer pós pandemia, como uma possibilidade de formação docente.
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