http://memoria.ifrn.edu.br/handle/1044/102 2026-08-19T20:09:36Z http://memoria.ifrn.edu.br/handle/1044/3252 Caracterização físico química e microbiológica do sabão sustentável produzido com óleo vegetal residual Few collection and correct disposal actions are adopted for the recycling and environmentally appropriate destination of Residual Vegetable Oil (RVO). Sustainable soap produced from used cooking oil is an alternative for minimizing this type of waste. However, assessing its quality and proposing a correct standardization for the final product produced is a process that is rarely used, with artisanal techniques being adopted, with indefinite quantities, which can harm the health of recyclers and end consumers. For preliminary analysis, oil from the restaurant at IFRN campus São Paulo do Potengi will be collected, followed by use for artisanal production of sustainable soap. In the search for standardization of the soap produced, the chemistry laboratory at IFRN campus São Paulo do Potengi will be used, where the waste will be previously characterized, for definitions, proposals, comparisons and the Center for Water, Food and Effluent Analysis | NAAE for alignment of the probable contaminants identified. The physical-chemical parameters to be analyzed from the oil collected at (15 and 30 days) were: pH, determination of acidity, relative density, determination of moisture and volatile matter, determination of ether-insoluble impurities and microbiological control. To analyze the quality of the sustainable soap, the following parameters were analyzed at (7, 14, 21 and 28 days): pH, organoleptic aspects and average weight, loss of mass (during storage), formation of cracks, light resistance test and water resistance test, foam formation (Ross-Miles test). The results of the residual vegetable oil collected initially for the two storage periods showed a pH of 5.0 considered acidic and after the saponification reaction and the addition of sodium hydroxide it went to a basic pH of 12.0. The oil collected after 15 days had an acidity content of 1.02 mg KOH/g and 0.51% oleic acid, and after 30 days, an acidity content of 0.68 mg KOH/g and oleic acid of 0.34%, density was 0.9224 and 0.9262, respectively, moisture content of 0.28% and 0.23%, impurity content of 2.26% (15 days) and 0.69% (30 days). The collected oil did not show microbiological contamination. It was observed that the soap initially had a very basic pH and after 21 days of rest a pH of 10.0. Mass loss during storage was 1.47% and 1.50%, and mass loss after the water resistance test ranged from 3.42% to 23.43%. In the light resistance test, plaque formation was observed (15 days - 1 sample and 30 days - 3 samples), Ross-Miles test (30 cm of foam formation for both soaps). The soap produced with 15-day-old oil showed cracks in its structure. 2025-07-05T00:00:00Z http://memoria.ifrn.edu.br/handle/1044/3179 Instalação de uma estação BRAMON: limites e potencialidades no ensino interdisciplinar This study analyzes the process of implementing a meteor monitoring station of the Brazilian Meteor Observation Network (BRAMON) at the Federal Institute of Education, Science and Technology of Rio Grande do Norte (IFRN), Caicó Campus, examining its technical, scientific, and pedagogical aspects, as well as its potential contributions to inquiry-based teaching and scientific literacy in Integrated Secondary Education. The research adopts a qualitative approach with a descriptive and analytical character, based on document analysis, a survey of the network’s technical requirements, and a detailed description of the planning, acquisition, and initial configuration of the equipment and computational environment. The study discusses the criteria used for camera selection, the organization of the physical and logical infrastructure, and the operational challenges encountered during implementation. Although time constraints and configuration issues prevented the full operation of the station and the collection of observational meteor data during the period analyzed, the results indicate significant progress in structuring the project and strengthening the integration between teaching and research. The analysis demonstrates that, even in its initial phase, the implementation process presents strong pedagogical potential by enabling the integration of Physics, Astronomy, and technical fields, as well as fostering inquiry-based and interdisciplinary practices. It is concluded that the BRAMON station represents a promising tool for promoting scientific literacy, citizen science, and investigative learning, while also outlining concrete perspectives for the continuation of the project within the IFRN. 2026-01-30T00:00:00Z http://memoria.ifrn.edu.br/handle/1044/3098 Ensino de química ao aluno cego: um estudo sobre as barreiras de inclusão Inclusive education is a fundamental right for individuals with disabilities. However, accessibility is not always guaranteed, and attitudinal barriers are challenging. This study investigates the attitudinal barriers of a blind student in both basic and higher education. The research was conducted through observations, interviews, and conversational dynamics with the students, teachers, administrators, and colleagues at the educational institutions where she attended high school and began higher education. Our findings show that the attitudinal barriers promoted by teachers, classmates, and the student's family (albeit unconsciously) hindered her inclusion process. We concluded that, in addition to architectural accessibility, institutions need to take action to promote awareness and reduce prejudice against people with disabilities so that their inclusion can be effective. 2025-05-01T00:00:00Z http://memoria.ifrn.edu.br/handle/1044/2851 ALFABETIZAÇÃO CIENTÍFICA E TECNOLÓGICA NO CURSO DE TECNOLOGIA EM GESTÃO AMBIENTAL DO IFRN Scientific and Technological Literacy (STL) is an important objective that, in one of its interpretations, aims to foster understanding of the modern world. Thus, its role in correlating influences within the educational context—where STL is regarded as a necessity across various fields of knowledge—has frequently been highlighted in the literature as a potential pathway for shaping socially critical and autonomous agents. This article aims to analyse the STL provided to students in the Higher Education Technology course in Environmental Management at the Federal Institute of Education, Science and Technology of Rio Grande do Norte, with the objective of identifying potential issues affecting the process. Upon evaluating the data obtained from the research, it is noticeable that the majority of respondents show evidence of a critical education in STL, acknowledging the role of Science and Technology (S&T) in socio-environmental threats. 2024-12-18T00:00:00Z