https://repositorio.uema.br/jspui/handle/123456789/1885 Mon, 10 Aug 2026 09:10:54 GMT 2026-08-10T09:10:54Z http://repositorio.uema.br:80/retrieve/81630c2c-ff88-4675-815a-b0db45be13a1/CCT UEMA.png https://repositorio.uema.br/jspui/handle/123456789/1885 https://repositorio.uema.br/jspui/handle/123456789/6353 Título: Acessibilidade Urbana facilitada por um protótipo de sistema para PcD Abstact: This work shows results from the development of a prototype system with a focus on urban accessibility that serves various types of People with Disabilities (PwD), in addition, an academic research questionnaire was applied aiming to amplify the vision regarding the main topic addressed, as well how to evaluate the use of the proposed system solution. The objective of this research is to contribute to society through social inclusion and applicability of the future solution in smart cities, starting through the experiment on an academic campus. This article also delves into technological and social aspects that can serve as a reference for consultations by researchers, public and private bodies who seek depth in their studies. However, as the topic is of great relevance, it is clear that this line of research is still little explored, especially in Brazil, given the limited number of articles available. Mon, 01 Jan 2024 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6353 2024-01-01T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/6343 Título: Análise da robótica educacional como instrumento pedagógico no desenvolvimento escolar do ensino fundamental da rede pública Abstact: The present research deals with the analysis of educational robotics as a pedagogical tool in the school development of 5th-grade students in the public school system of Santa Rita-MA. It concerns a study project on the combination of educational robotics and its contribution to Mathematical Logical thinking allied with technology in the early grades of elementary education. Its objectives are to compare traditional methods of teaching mathematics with active methodologies that use educational robotics; stimulate students' interest in the proposal; analyze the problem-solving ability of the presented problems; evaluate students' cognitive development focused on enhanced mathematics learning with the support of robotics kits, and identify which Computational Thinking skills (pattern recognition, decomposition, algorithms, and abstraction) are related to mathematical logic. The investigation has a practical and exploratory nature, with a qualitative and quantitative approach, of an applied nature, using procedures such as case studies and action research, through the conduct of classes, workshops, and the application of evaluative questionnaires in the initial and final phases of the research. Based on the results and findings, it was observed through the case study that educational robotics not only stimulates and interests children in mathematics but also significantly improves academic performance in that area of knowledge. However, it was not possible to effectively compare traditional methods of teaching mathematics with active methodologies that use educational robotics. Therefore, the research concludes that educational robotics, although it promotes various benefits as a practical teaching methodology, requires resources such as collaborative work, a multidisciplinary team, and adequate funding to have effective relevance Mon, 01 Jan 2024 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6343 2024-01-01T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/6316 Título: Alucinações em modelos de IA Generativa: limitações e desafios na compreensão da linguagem humana Abstact: Chatbots are artificial intelligence systems that simulate human interactions and have been widely used in diverse areas, from customer service to content creation. However, despite advances in technology, chatbots still present limitations and challenges, such as the tendency to make mistakes and the difficulty in dealing with complex questions and nuances of human language. These errors are known as hallucinations and can be caused by several factors, such as a lack of common sense, biased data and limitations in the models' ability to deal with non-existent or unrepresented information in the data. Chatbot hallucinations can have significant impacts in several areas, such as education, customer service and content creation. For example, a chatbot that cannot understand the nuances of human language may provide inappropriate or incorrect responses, which can lead to a negative user experience. Additionally, chatbots can perpetuate social bias and discrimination if they are trained on biased data. To deal with these limitations in the educational context, it was proposed the development of a chatbot for teaching programming in Python that uses advanced natural language processing techniques to reduce hallucinations when learning the language. Fri, 31 May 2024 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6316 2024-05-31T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/6283 Título: Estudo teórico das propriedades eletrônicas, termodinâmicas e ópticas na estrutura de zeólita (rub-11) com as dopagens de metais de transição Abstact: The molecular selectivity of zeolites gives these materials the function of molecular sieves, a central property in research focused on the space sector. The ability to őlter molecules based on nanometric dimensions is what drives the development of new structural and chemical applications in this őeld. Furthermore, zeolitic material possesses speciőc requirements for environments in this segment, since the material has a certain resistance to extreme environments, thermal stability, and eiciency in adsorption and air puriőcation processes in enclosed environments, such as aircraft cabins or space stations, serving to control contaminants such as ��3, �2�, and ��4, given its already consolidated use. Therefore, this work aims to investigate possible enhancements of the properties of RUB-11 zeolite through metallic doping by silicon atom substitution and branching at points previously calculated by population analysis, using the DFT computational method with PBE-GGA functional. Initially, the structure of RUB-11 zeolite exhibited characteristics of an insulating material; however, the results of doping with transition metals show considerable alterations in the characteristics of the original structure, making the zeolitic material more reactive. Furthermore, the viability is conőrmed by the thermodynamic properties (Enthalpy, Heat Capacity at Constant Pressure, Entropy, and Gibbs Free Energy) and the reactivity through the band gap energy, agreeing with the optical results, with only an expected variation due to the methods used. Adsorption studies resulted in adsorption for all gases proposed in this research; however, ammonia and sulfur dioxide obtained the best results. Finally, the stability analysis of the materials demonstrated that the nature of the transition elements with oxygen atoms are determining factors for the stability of the variations in the doping process Fri, 13 Mar 2026 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6283 2026-03-13T00:00:00Z