Sejam bem-vindos ao Poraquê, o Repositório Institucional (RI) da Universidade Federal do Oeste do Pará (Ufopa). Nosso objetivo é armazenar, preservar, dar acesso e visibilidade à produção científica em formato digital da universidade. O nome Poraquê é uma alusão ao peixe-elétrico da Amazônia, em que seu corpo é capaz de produzir pulsos elétricos, é dito, que enxergar no escuro, logo, possui autonomia energética, capaz de acender uma lâmpada

Comunidades Autores Área de Estudo Recentes

Comunidades

Selecione uma comunidade para navegar por suas coleções

Agora exibindo 1 - 5 de 6

Submissões Recentes

  • Imagem de Miniatura
    Item type:Item,
    Garantias financeiras para o fechamento de mina: proposta para o caso do Brasil.
    (Universidade Federal do Oeste do Pará, 2025-09-11) NASCIMENTO, William Carlos Gomes do; SANTOS, Michael José Batista dos; http://lattes.cnpq.br/5889866630676008; https://orcid.org/0000-0002-9958-9868
    The present study addresses the issue of financial assurances for mine closure in Brazil, proposing a model aligned with international practices. Mining, although crucial to the Brazilian economy, generates significant environmental impacts and raises concerns about the fate of mines after resource exhaustion. The high costs of rehabilitation have led to the abandonment of numerous mines in the country, with 11% of current projects in this situation. The absence of closure plans and exclusive resources for this stage has caused socioeconomic and environmental impacts. Recent accidents with tailings dams in Minas Gerais prompted stricter mine closure regulations, such as ANM Resolution No. 68/2021, which requires a mine closure plan from the pre-feasibility stage. The research employed a qualitative approach, utilizing a bibliographic survey of scientific articles, international agency reports, and online websites and journals. Analysis of international models used in Australia, Canada, and the United States revealed the mandatory nature of financial assurances for the rehabilitation of mined areas, with amounts based on total closure costs and periodic review. For Brazil, a model is proposed that includes the legal obligation of these assurances, standardized calculation, diversification of instruments, integration with financial institutions, and executive branch support to strengthen the country's regulatory agency. The requirement for exclusive financial assurances for mine closure in Brazil is fundamental to mitigating environmental damage and mine abandonment. A thorough assessment of mining companies situations, considering tax burdens and the need to strengthen the National Mining Agency, is crucial.
  • Imagem de Miniatura
    Item type:Item,
    Avaliação do cenário ambiental e análise quantitativa das argilas no município de Juruti-PA.
    (Universidade Federal do Oeste do Pará, 2025-06-27) COELHO, Regiane Auzier; MORAIS, Matheus Diniz Pinto de Morais; http://lattes.cnpq.br/9603805914586794
    The population growth in Juruti (PA) has significantly increased the demand for construction, requiring larger amounts of raw materials. As a result, new clay extraction areas have been opened to supply local brick production. This study aims to: Assess the environmental impact of these mining operations; Identify, through chemical analyses, the clays used in brick production within the municipality; Map the environmental degradation associated with the extraction activity; Propose measures for mitigation and environmental recovery. The adopted methodology is practical and laboratory-based: it involves field sampling and chemical testing to determine which types of clay are used. The results will be displayed in comparative graphs and will serve as a foundation for discussing environmental preservation actions and effective alternatives for reclaiming mined areas. It can be concluded that clay mining activities tend to strive for a balance between social development and environmental conservation, adopting extraction techniques that are less harmful to the environment.
  • Imagem de Miniatura
    Item type:Item,
    Diagnóstico socioeconômico e do sistema de cultivo de produtores de mandioca vinculados à cooperativas no Município de Juruti - Pará.
    (Universidade Federal do Oeste do Pará, 2025-07-15) REIS, Renata Azevedo dos; PELEJA, Vanessa Leão; http://lattes.cnpq.br/4847354203016902
    Cassava (Manihot esculenta Crantz) is a species of great social, economic, and cultural importance in the northern region of Brazil, especially in the municipality of Juruti, located in the western region of the state of Pará. It is a staple food and a source of income for many families, but its productivity is low in the region. Therefore, this study aimed to characterize the socioeconomic profile and identify the main production challenges faced by cassava producers affiliated with cooperatives in the municipality of Juruti, Pará. The methodology used was based on the administration of semi-structured questionnaires to cassava producers belonging to two cooperatives in the municipality of Juruti: the São Pedro Family Farmers' Cooperative (COOPAFASP) and the Juruti Small Rural Producers' Cooperative (COOPAJ). The results demonstrated that, at COOPAJ, cassava plays a secondary role in income generation. At COOPAFASP, cassava production represents the main source of income for 75% of the cooperative members, with an emphasis on the production of flour, tucupi, and tapioca. Despite the crop's cultural and economic relevance, data analysis revealed a series of limitations, such as a lack of technical assistance, low educational levels, scarcity of financial resources, lack of soil analysis and correction, use of rudimentary practices, and a lack of adequate infrastructure for transportation, storage, and marketing. The need to strengthen public policies aimed at family farming becomes evident, promoting access to credit, technical assistance, encouraging the adoption of technologies, training producers, and encouraging family succession.
  • Imagem de Miniatura
    Item type:Item,
    Análise do desenvolvimento de habilidades gerenciais através do esporte universitário na UFOPA, Campus Alenquer
    (Universidade Federal do Oeste do Pará, 2025) VIANA, Aline Ribeiro; BANDEIRA, Felipe de Lima; http://lattes.cnpq.br/8990415396918035; https://orcid.org/0000-0002-9857-2554
    This study analyzes how university sports practice at UFOPA's Alenquer campus contributes to the development of managerial competencies among students. The research used a qualitative approach, applying semi-structured questionnaires with open-ended questions and field notes. Results showed that participation in sports activities enhances skills such as leadership, teamwork, planning, communication, and conflict resolution. Despite structural and institutional challenges, students adopt autonomous and collaborative strategies to ensure sports participation. The study concludes that university sports function as a space for comprehensive education and student retention polic
  • Imagem de Miniatura
    Item type:Item,
    Capacidades governativas da Gestão Pública Municipal em Itaituba - Pará
    (Universidade Federal do Oeste do Pará, 2025) FERREIRA, Elodyane Uchôa; BARROS, Márcio Júnior Benassuly; http://lattes.cnpq.br/9925266223327703; https://orcid.org/0000-0001-5764-5692
    The municipalities of the Amazon region are subject to several factors that hinder their development, which is why it is necessary to collect information that allows us to assess how this development has occurred and thus assess the quality of life of the population that lives in this region. The analysis carried out in this research seeks to present data that indicate these levels through municipal management, strengthening good governance with the implementation of public policies that socioeconomically develop the municipality of Itaituba, located in the western region of the state of Pará. In the preparation of this analysis, the qualitative and quantitative method was used in the data collection with information obtained through IBGE – Cities. It was concluded in the collection of information that the municipality of Itaituba-PA presents weaknesses in the implementation of public policies related to housing indicators, basic sanitation, risk and disaster management, infrastructure, among others described in the research.