Repositório Institucional da Universidade Federal do Amapá - RIUNIFAP

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O RIUNIFAP é uma iniciativa para preservação e disseminação da Produção Intelectual da UNIFAP, compartilhando o Conhecimento produzido na Universidade com a Comunidade.

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Últimas publicações

  • Tipo de item:Item,
    Estudo comparativo fonético-fonológico: francês, crioulo guianense e kheuol (karipuna, Oiapoque)
    (UNIFAP - Universidade Federal do Amapá, 2025-09-26) SILVA, Ene dos Santos; ARAÚJO, Elizângela Manoela
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    Avaliação de redes neurais convolucionais e monitoramento de fauna urbana na Universidade Federal do Amapá campus Marco Zero: desafios da automação em ambiente de transição amazônico
    (UNIFAP - Universidade Federal do Amapá, 2026-02-26) OLIVEIRA NETO, Antonio Carvalho de; NORRIS, Darren; http://lattes.cnpq.br/7765798316321443; https://orcid.org/0000-0003-0015-8214
    The monitoring of stray animals in urban areas is a strategic component of One Health, aiming at zoonosis control and the mitigation of impacts on native biodiversity. However, manual analysis of large volumes of data from camera traps constitutes a methodological bottleneck. This study aimed to develop and evaluate the performance of a Deep Learning prototype, based on the ResNet-50 architecture, for the automated classification of fauna at the Marco Zero campus of the Federal University of Amapá (UNIFAP), comparing it to the established DeepFaune and AddaxAI models. A total of 19,190 images were collected in an Amazonian urban environment. The prototype was implemented via the Torch for R ecosystem using fine-tuning techniques. Results revealed a global accuracy of 29.99% and a Kappa index of 0.0981 for the prototype, while the DeepFaune and AddaxAI models reached accuracy levels of ~65%. The analysis evidenced that the low performance stems from domain shift and the Terra Incognita effect, exacerbated by vegetation density and the loss of chromatic descriptors in nocturnal (infrared) records. In addition to the technological bias, the study identified significant anthropogenic pressure, with 16.68% of records consisting of domestic dogs (Canis lupus familiaris) and cats (Felis catus). It is concluded that, in the current scenario, the full automation of environmental surveillance at UNIFAP is unfeasible, and manual classification by specialists remains a mandatory and indispensable step to ensure data reliability, positioning artificial intelligence as a preliminary screening tool.
  • Tipo de item:Item,
    Pressões minerárias na Bacia do Cassiporé e vulnerabilidades da Zona Costeira do Amapá: uma análise utilizando geotecnologias
    (UNIFAP - Universidade Federal do Amapá, 2025-12-18) SOUZA, Andrio Luiz Miranda de; SILVA JUNIOR, Orleno Marques da; SANTOS, Sávio Luís Carmona dos; http://lattes.cnpq.br/4120393378913333; http://lattes.cnpq.br/2646376025820931; https://orcid.org/0000-0002-1173-1429
    The formation of the state of Amapá is historically linked to mining, from eighteenth century gold prospecting to industrial operations initiated in the 1950s with ICOMI S/A. This study evaluated the environmental impacts of mining activities in the Cassiporé River Basin, focusing on the Cassiporé and Reginá rivers and their connection to the northern coastal zone of Amapá. The research was conducted in three stages: (i) a literature review and compilation of secondary data on legal and illegal mining operations, including ore type, geological context and documented environmental impacts; (ii) a temporal analysis from 1985 to 2024 using Landsat imagery and MapBiomas data to identify land-use and land-cover changes, particularly vegetation removal and its effects on soil, drainage and aquatic biota; and (iii) geotechnical mapping in a GIS environment (QGIS 3.32) to delineate mining areas, quantify deforestation and identify hydrosedimentary influence zones based on altimetry and digital terrain models. The results show a marked increase in mining-related deforestation, rising from approximately 1,000 ha in 1985 to nearly 4,000 ha in 2024, concentrated in the upper basin around the Lourenço district. This expansion occurs over mineral-rich lithologies of the Guiana Shield, intensifying both industrial and artisanal mining, often lacking adequate waste-containment structures. The combination of elevated headwaters and dense drainage networks suggests high potential for sediment and heavy-metal transport (including mercury, lead and cadmium) toward downstream areas, mangroves and the coastal zone, affecting water quality, ichthyofauna and food security in riverine communities. Overall, mining in the Cassiporé Basin presents significant physical and biological impacts and poses cumulative risks to Amapá’s coastal ecosystems, underscoring the need for continuous monitoring and more effective regulatory measures.
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    A utilização da arte e da cultura como instrumento político pela Coreia do Sul: a importância e influência da música pop coreana
    (UNIFAP - Universidade Federal do Amapá, 2023-10-03) BARBOSA, Sandriele Larissa da Silva; BASTONE, Paula de Carvalho; http://lattes.cnpq.br/9515884438763771; https://orcid.org/0000-0003-3038-1011
    This paper investigates the instrumentalization of culture and art in international politics, focusing on South Korea as an example of the effectiveness of soft power. Exploring the transformation of cultural elements into political and economic means, it analyzes how this strategy is used to influence public opinions and gain political advantages. The "Korean Wave" (Hallyu) is highlighted as a form of cultural diplomacy, promoting South Korean culture globally, with an emphasis on K-pop. Additionally, the study addresses the economic impacts of K-pop in South Korea, such as the increased demand for Korean language education and the boost in tourism driven by interest in pop culture.
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    A representatividade negra feminina no Itamaraty: uma reflexão sobre desigualdade racial e de gênero na diplomacia brasileira
    (UNIFAP - Universidade Federal do Amapá, 2023-10-06) PENHA, Sabrina da Silva; BASTONE, Paula de Carvalho; http://lattes.cnpq.br/9515884438763771; https://orcid.org/0000-0003-3038-1011
    The present work aims to carry out a debate on the representation of black women in Itamaraty from the history of diplomacy and the analysis of data regarding the insertion of women in positions of power, and after the expansion of the policy of quotas. It is noticeable the importance of debating about gender, race and class in the academic sphere, substantially, the practice of this system of oppression that focuses on the exclusion of fundamental rights of women of color, which have been imposed since the colonial period. Thus, it is proposed to present reflections on how the image of the diplomat and the consequences of racial and gender inequality impacted on the underrepresentation of black women in Brazilian diplomacy through exposition, data analysis and bibliographic review.