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

Atratividade de ovitrampas para biodiversidade de Culicidae (Insecta: Diptera) na área do Bioparque da Amazônia, Macapá- AP
(UNIFAP - Universidade Federal do Amapá, 2025-04-24) VASCONCELOS, Sara Brenna Rodrigues; SIDONIO, Taires Peniche da Silva; SOUTO, Raimundo Nonato Picanco; http://lattes.cnpq.br/1661932002902797; https://orcid.org/0000-0002-8795-1217; http://lattes.cnpq.br/9240482407160379; https://orcid.org/0000-0002-2179-1580
Mosquitoes are cosmopolitan insects and colonize almost all regions of the planet. With varied feeding habits, they perform diverse functions in nature. Mosquitoes are constantly the object of study, mainly because many play a relevant role as vectors of pathogens that cause diseases, posing a threat to millions of people. They are responsible for parasitic diseases such as malaria and filariasis, and various arboviruses widely distributed throughout the world, such as yellow fever, dengue, chikungunya, zika, encephalitis, and other viral diseases. The uncontrolled growth of cities, deforestation, and other natural processes can lead to an increase in the density of vectors and the incidence of positive cases of arboviruses. In vector control programs, especially for arboviruses caused by vectors of the genus Aedes, entomological surveillance is carried out using various traps for sampling immature and adult stages. The objective of this study is to use ovitraps to understand the biodiversity of culicids (Insecta: Diptera) in the Amazon Biopark, Macapá – AP. A total of 316 traps were installed in indoor and outdoor environments of the built area of the Amazon Biopark, an urban area of Macapá. The natural and artificial breeding sites of culicids were characterized and evaluated during the study. Seventeen species of culicids were identified, with six species present in traps and 15 in breeding sites. The most abundant species was Aedes albopictus, which occurred in traps in forest environments and breeding sites. With the results of this study, it was possible to observe that ovitraps are sensitive to Culex spp., that seasonality influences the abundance of Ae. aegypti and Ae. albopictus in urban forest fragments in the metropolitan area of Macapá, and to record the occurrence of Aedes terrens in the state of Amapá.
Metodologias ativas no ensino de ciências: contribuições das atividades práticas, dos recursos didáticos e das tecnologias digitais no Colégio Militar 2 de Julho, São Luís / MA
(UNIFAP - Universidade Federal do Amapá, 2026-07-01) PINHEIRO, Dyerlis Oliveira; SILVA, Wegliane Campelo da; http://lattes.cnpq.br/1838246896243202; https://orcid.org/0000-0001-6370-162X
Traditional teaching in Natural Sciences often prioritizes the passive memorization of nomenclatures, resulting in student disinterest and cognitive barriers such as plant blindness. Given this scenario, this study aims to evaluate the contribution of active learning methodologies in Science Teaching, investigating the cognitive gain and conceptual restructuring of basic education students regarding Botany and Earth Structure contents. The research, adopting a qualitative-quantitative and descriptive approach, was conducted with 28 sixth-grade students of Elementary School at the Colégio Militar 2 de Julho, in São Luís/MA. The methodological course comprised a diagnostic phase through informal conversations, the application of a diagnostic assessment, pedagogical interventions based on dialogued lectures, the use of a printed botany activity booklet, the employment of Information and Communication Technologies (ICTs) through synchronous digital simulations with the Stellarium astronomy software, and the production of educational materials, concluding with the application of a final evaluative questionnaire. The results pointed to a significant conceptual evolution: in Botany, complaints about the complexity of technical terms dropped from 71.4% to 14.2%, accompanied by mitigated difficulties in the microscopic abstraction of plant physiology; in Earth Structure, the correct answer rate regarding the internal layers of the planet rose from 28.5% to 94.2% after the introduction of three-dimensional models, while mastery over the rotation movement jumped from 32.1% to 97.1% using the virtual simulator. It was observed that didactic diversification activated multiple knowledge input channels, overcoming the mnemonic model. It is concluded that the applied active methodologies fully met their objectives, demonstrating pedagogical effectiveness in overcoming common sense and validating the classroom's cognitive heterogeneity as a path toward engagement and scientific literacy.
Comparação entre métodos de dimensionamento analítico e computacional de lajes maciças em concreto armado
(UNIFAP - Universidade Federal do Amapá, 2026-07-07) VIEIRA, Diogo da Silva; BENTES, Jennefer Lavor; http://lattes.cnpq.br/1904072830533199; https://orcid.org/0000-0001-9855-9854
Solid reinforced concrete slabs are among the most widely used structural elements in buildings, being responsible for receiving and transferring loads to the other components of the structure. The design of these elements can be performed using different approaches, ranging from classical analytical methods to computational tools based on numerical analysis. In this context, the present study aims to compare the results obtained through analytical and computational design methods for solid reinforced concrete slabs. For the analytical design, the classical methods of Czerny and Bares were employed to determine the bending moments acting on the slabs. For the computational approach, two models were developed using the SAP2000® software: the first considering beams and columns, representing more closely the actual structural behavior, and the second replacing beams with nodal supports, in order to reproduce the boundary conditions adopted in the analytical methods. This research is characterized as an applied study with a qualitative approach, based on the analysis of a floor system composed of solid reinforced concrete slabs. The internal forces obtained from each method were used for reinforcement design and subsequently organized into comparative tables and graphs. The results are expected to provide a better understanding of the differences and similarities between the analyzed methods, contributing to the evaluation of the influence of calculation assumptions and modeling conditions on the design of solid reinforced concrete slabs.
Análise da situação do Programa Quelônios da Amazônia na Reserva Biológica do Parazinho, Arquipélago do Bailique, Macapá, Amapá, Brasil: subsídios para a gestão da conservação da tartaruga-da-amazônia (Podocnemis expansa)
(UNIFAP - Universidade Federal do Amapá, 2026-03-07) SANTOS, Jeronimo Dias dos; SOUTO, Raimundo Nonato Picanco; http://lattes.cnpq.br/1661932002902797; https://orcid.org/0000-0002-8795-1217
The giant South American river turtle (Podocnemis expansa), the largest freshwater turtle in South America, has suffered a historical population decline due to predatory exploitation. The Amazonian Turtles Program (Q-AMA) was created to reverse this scenario, with the Parazinho Biological Reserve (REBIO Parazinho), in the Bailique Archipelago/AP, being one of its most important areas. This study aimed to analyze the current situation of Q-AMA at REBIO Parazinho, evaluating the factors that led to its unfeasibility and proposing subsidies for species conservation management in the Amazon River Mouth region. The research was based on the analysis of historical program data (1981-2018) and primary data collected during three technical expeditions carried out between October 2024 and July 2025, which included mapping 249 km of riverbanks, beach characterization, and nesting monitoring. The results showed that the historic beach on Pará Island, within the REBIO, has lost over 80% of its extension since 2013, leaving a residual 1,640m stretch with clayey sand, obstacles, and tidal flooding, making it unsuitable for nesting. Conversely, a new 2,500m beach with ideal conditions was identified at the Boca-Velha site. However, no signs of nesting or turtle sightings were recorded on either beach during the study period, suggesting a local population collapse. The integrated analysis indicates that coastal erosion, saltwater intrusion, historical illegal hunting, and logistical and budgetary constraints make the continuity of Q-AMA in its traditional form unfeasible. It is concluded that the temporary suspension of the program is the most appropriate measure, recommending a reassessment of the Protected Area's category, investment in research and monitoring of the new geological formations, and the implementation of an environmental education program focused on climate resilience and biodiversity conservation.
Aplicação de técnicas de aerofotogrametria e vetorização no planejamento de áreas de expansão urbana. Estudo de caso: novos bairros no município de Oiapoque/AP
(UNIFAP - Universidade Federal do Amapá, 2026-03-05) CHAGAS, Felipe Augusto Ferreira das; OLIVEIRA, Adenilson Costa de; FEITOZA, Cley Jackson; http://lattes.cnpq.br/1615747026991662; http://lattes.cnpq.br/2745252559386566; https://orcid.org/0009-0001-9692-0279
This study presents a multitemporal and spatial analysis of urban expansion across the extension areas of five neighborhoods in the municipality of Oiapoque, Amapá, a region characterized by significant socio-environmental vulnerabilities. The primary objective was to analyze the dynamics of unplanned urban growth and quantify direct anthropogenic impacts, utilizing digital photogrammetry and geoprocessing tools as essential supports for territorial planning. The methodology was based on the processing of imagery captured by Remotely Piloted Aircraft (RPA) using Agisoft Metashape© software, which generated a dense point cloud, orthomosaics, and Digital Terrain and Surface Models (DTM and DSM). The processing stage required meticulous human intervention for outlier detection and filtering, ensuring the altimetric integrity of the models. Subsequently, land-use features identified in a main orthomosaic were vectorized in QGIS© software to extract quantitative data regarding the advancement of the urban footprint. The results indicated a suppression of 80.3% of native vegetation within the altered area, along with 662 unplanned housing units and 341 new residences currently under construction. It was also verified that irregular cut-and-fill operations altered the micro-relief and natural drainage, adversely affecting urban mobility and the safety of local infrastructure. This study concludes that the integrated use of RPAs and GIS is a tool capable of overcoming the scarcity of official geographic data in isolated municipalities, providing cartographic bases with resolutions superior to conventional satellite imagery. These geotechnologies proved to be invaluable elements for informing civil engineering interventions, mitigating environmental risks, and guiding public policies focused on the universalization of basic infrastructure.