BDTD - Biblioteca Digital de Teses e Dissertações

URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/2289

Biblioteca Digital de Teses e Dissertações da UFPA (BDTD). Sistema Eletrônico de Teses e Dissertações (TEDE). Projeto BDTD/UFPA e Instituto Brasileiro de Informação em Ciência e Tecnologia (IBICT).

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Agora exibindo 1 - 20 de 113

Acesso aberto (Open Access)
Alfabetização histórica: método de ensino em História na Escola Professor Remígio Fernandez, Mosqueiro/Pa
(Universidade Federal do Pará, 2021-05-21) VILHENA, José Sebastião; COSTA, Renato Pinheiro da; http://lattes.cnpq.br/0413733044020733; https://orcid.org/0000-0001-7132-0579
This dissertation is an investigation on the dynamics of History Teaching at the Professor Remígio Fernandez Municipal School, Mosqueiro/PA, in the school year of 2019, in which the project entitled: ―Historical Literacy: narratives, rap and black consciousness‖ was developed with students from class C42201 (9th grade/Elementary). However, to better understand the successes and gaps verified during the execution of this training plan, it was necessary to analyze the didactic experiences in History previously developed (between the years 2013 and 2018), which pointed out aspects of maintenance and advances in relation to a type of Teaching History linked to the historicism of the 19th century, this one characterized by the disciplinary anti-dialogism in the way of teaching, by the Eurocentrism in the choice of contents and by the predominance of written language that was not very significant for the students. Thus, starting from this research problem and seeking to build a proposal for an innovative method in History Teaching for that school, Historical Literacy was pointed out as this alternative. To support this perspective, an analysis of the dual role of historical school education in overcoming the problems related to linguistic literacy and literacy in the specific objectives of the discipline of history was carried out, pointing out as a viable way for this challenge the development of Teaching of Ethical-Racial Relations and of historical narratives in the school environment, seeking to promote the development of historical identities, praxis, consciences and awareness. Therefore, this study is epistemologically linked to the field of Didactics of History and is presented methodologically in line with the perspectives of social investigations called "action research", which is subdivided into empirical-theoretical and situated historical cognition, with the intention of to present viable educational products for the positive transformation of History Teaching at the researched school.
Acesso aberto (Open Access)
Amazônia usurpada e o direito ao passado regional: um estudo sobre a História Regional no Currículo da Secretaria Municipal de Educação de Manaus (1989 – 2020)
(Universidade Federal do Pará, 2021-12-13) MENDONÇA, Marúcio José Bezerra; FERREIRA, Eliana Ramos; http://lattes.cnpq.br/8121954088119834
The objective of the present research was to understand how the teaching of Regional History has been given in municipal public schools in the city of Manaus, presenting a methodological alternative based on the use of Didactic Sequence to streamline the teaching of Regional School History. In this sense, we seek to trace the advances and setbacks of Regional History in the curricular proposals of the Municipal Department of Education of Manaus (SEMED), starting from the analysis of the curricular proposals elaborated for the subject of Fundamentals of History of Amazonas - FHA, between the last decade of the 20th century and the first decade of the 21st century, when there was its extinction, and the curricular proposals for the teaching of History elaborated in the second decade of the 21st century. The arguments made in the different written and oral sources indicated that the Regional History presented in the curricular proposals of Manaus has been restricted to the teaching of the History of the State of Amazonas, with the idea of an Amazonian identity being forgotten in these debates. We analyze the conceptions and challenges presented by teachers about the teaching of Regional History and the struggle for the return of contents on Regional History to the curriculum. The locus was the Escola Municipal Helena Augusta Walcott, one of the educational units of SEMED-Manaus, located in the eastern zone of Manaus. The field research for the elaboration of the educational intervention proposal was carried out between two classes, one from the 7th grade and the other from the 8th grade, in the morning shift. Based on diagnoses, reality and students' school knowledge, we present a proposal for a Didactic Sequence called Usurped Amazon: the right to the regional past, conceived from the decolonial ideals, as a methodological strategy to dynamize and enhance the teaching of History.
Acesso aberto (Open Access)
Amido termoplástico: obtenção de nanocompósitos de amido de araruta termoplastificado com nanopartículas de óxido de zinco
(Universidade Federal do Pará, 2024-02-07) PINTO, Bianca Corrêa; PAULA, Marcos Vinícius da Silva; http://lattes.cnpq.br/7538211324097974; MAIA, Ana Áurea Barreto; http://lattes.cnpq.br/0820112425394964; https://orcid.org/0000-0002-1880-1442
The search for new materials with comparable performance to synthetics has driven the development of sustainable and biodegradable materials. The growing demand has stimulated the creation of innovative materials, such as starch-based films, biopolymers, and others, which offer excellent mechanical and barrier properties while being environmentally friendly. To achieve higher levels of sustainability, starch-based films, enriched with new components, gain prominence as possible candidates for food packaging applications. In this context, the present study aims to obtain and characterize thermoplasticized nanocomposites with arrowroot starch (TPA) and zinc oxide nanoparticles (ZnO NPs) in different proportions (1%, 3% and 5%). Films without ZnO NPs were used as controls. The thermoplasticized starch films were made using the casting solution technique (solvent evaporation). They were evaluated for the concentration of ZnO NPs, and were also submitted to laboratory techniques, such as moisture, solubility and swelling tests. In addition, they were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and tensile, strain at break and modulus of elasticity tests. For the moisture test, the results revealed that the addition of 1, 3 and 5% of ZnO NPs to the polymeric matrix provided a gradual decrease in the percentage of moisture when compared to the control TPA film. This fact is attributed to the interfacial interaction between the ZnO NPs and the arrowroot starch matrix, which in turn hinders the interaction of water molecules with the nanocomposite film. For the percentage of solubility of the films, a small change was observed after the addition of the NPs ZnO to the starch matrix, which becomes important for the maintenance of products stored in food packaging as well as the stability of the polymeric films. As for the swelling test, for the 1% TPA, 3% TPA and 5% TPA films, it was verified that when the SPL was added, they presented smaller variations compared to the TPA film containing only arrowroot starch in the polymeric matrix. In view of the above, the micrographs obtained by SEM revealed the presence of randomly dispersed aggregates of ZnO NPs in the polymeric matrix of arrowroot starch. The stress properties tests were conducted in 5 replicates, with a speed of 5 mm/min. The TPA film showed an average of 0.34 MPa and 59.80% for tensile strength and deformation at break, respectively. The incorporation of ZnO nanoparticles into the arrowroot starch matrix resulted in an increase in the tensile strength and deformation of TPA 1%, TPA 3% and TPA 5% films compared to TPA film. The mean strength for the films TPA 1%, TPA 3% and TPA 5% were 0.42 MPa, 0.45 MPa and 0.60 MPa, respectively. In addition, the mean strain at break for TPA 1%, TPA 3% and TPA 5% films were 77.14%, 86.34% and 86.05%, respectively. The FTIR spectra exhibited the same spectral behavior. This phenomenon is due to the presence of high starch content in the polymeric matrix of the films. The thermal stability for TPA, TPA1%, TPA 3% and TPA 5% films was investigated by thermogravimetric analysis (TGA). The results obtained for the TPA1%, TPA 3% and TPA 5% films presented similar data to the thermal stability of the TPA film and showed that the addition of ZnO NPs to the polymeric matrix did not cause a significant decrease in them. The results showed that it is possible to use the films produced in this work in the packaging sector.
Acesso aberto (Open Access)
Aprendendo História com os “guardiões da memória”: o uso do podcast no ensino de História da África e da diversidade étnico-racial
(Universidade Federal do Pará, 2021-12-22) SILVA, Wilson Júnior Bastos da; SILVA, Wesley Garcia Ribeiro; http://lattes.cnpq.br/2125737316069934; https://orcid.org/0000-0002-2734-5442
This dissertation aimed to discuss how the teaching of African History and Ethnic-Racial Diversity, prescribed by law 10639/03, has an important contribution to an anti-racist education. Thus, we mobilize, through the dialectical process between teaching and learning as pedagogical tools, knowledge that involved the ancestry that walks with memory and, as a means, the orality to work on the valorization of an identity linked to the African continent. For this, we searched through the interface between “Griot Technology” from ancestry and the orality technology of cyberspace podcast, to put our purpose into practice. Our studies were based on “Irmã Maria Angelica Dantas school”, in Paragominas, which in its Political Pedagogical Project includes the “Project Black is the Root of Freedom” for discussions on ethnic-racial relations.
Acesso aberto (Open Access)
O autoritarismo em questão: um estudo de caso sobre o ensino de História e a Ditadura Militar Brasileira na Escola de Aplicação da UFPA
(Universidade Federal do Pará, 2022-08-26) CUNHA, Gabriel da Silva; MESQUITA, Thiago Broni de; http://lattes.cnpq.br/9103271903652224; https://orcid.org/0009-0000-4099-8061
This work aims to discuss the concept of authoritarianism and how it mobilizes issues such as revisionism and denialism about the Brazilian military dictatorship. To achieve this objective, a case study was carried out with the history professors of the School of Application of the Federal University of Pará, an institution chosen as the locus of research due to the difficulties arising from the new coronavirus pandemic. The research also analyzes how these narratives are present in different environments and how they present themselves in their workplace, in addition to discussing the different resources and strategies that can be used by teachers in teaching about the Brazilian military dictatorship. As a product, a blog was created, with posts built from the analysis of bibliographic references, experiences reported by the participating teachers and the analysis of internet pages dedicated to providing resources about the Brazilian military dictatorship.
Acesso aberto (Open Access)
Avaliação da eficácia dos óleos essenciais das especies piper divaricatum e eugenia caryophyllus como inibidores de corrosão em aço carbono
(Universidade Federal do Pará, 2023-07-13) MONTEIRO, Heloise Leal; PAULA, Marcos Vinicius da Silva; http://lattes.cnpq.br/7538211324097974; MAIA, Ana Áurea Barreto; http://lattes.cnpq.br/0820112425394964; https://orcid.org/0000-0002-1880-1442
This research reports the evaluation of essential oils (EOs) such as those from the plant Piper divaricatum and Clove (button) Eugenia caryophyllus, as green corrosion inhibitors in metallic materials precisely in this work, carbon steel, these oils being considered environmentally sustainable. Corrosion tests were carried out in corrosive media such as 1M HCl and 3.5% NaCl, the concentrations used for both essential oils were 0.5g/L; 1g/L; 2g/L and 4g/L, for periods of time such as 24h and 7 days. The method used to evaluate the efficiency of the oils was gravimetric (weight loss). The Scanning Electron Microscopy technique of the field emission gun type (SEM-FEG) was conducted to investigate the surface of the specimen, while its chemical composition was obtained through Electron Dispersion Spectroscopy (EDS). In this work, several aspects were discussed, such as the efficiency in relation to the time exposed to the test specimen to corrosive media and factors such as the adsorption isotherm of the oils on the metal surface, in addition to calculations of the corrosion rate of the test specimens in the absence and presence of inhibitors and their relationship with the oil concentrations used. The studies indicated that the essential oils of Piper divaricatum and Clove (Eugenia caryophyllus) showed excellent results in an acid medium of up to 98.3% for the concentration of 2g/L of Piper divaricatum EO in 24h, and 89.5% for the concentration of 1g/L of Eugenia caryophyllus EO in 7 days. In the neutral medium, the highest percentages of inhibition were 61.1% for the concentration of 0.5g/L of EO from Piper divaricatum in 24h, and 83.3% for the concentration of 1g/L of EO from Eugenia caryophyllus in 24h. the isotherms of the oils followed the Langmuir adsorption model, where both oils adsorbed on the metal surface, the best results of isotherms were for the acid medium, for the neutral medium due to the high variability of the data it was not possible to establish a consistent correlation. In view of the proposed results, it was possible to conclude that the essential oils of P. divaricatum and E. caryophyllus have the potential to be used as corrosion inhibitors mainly in an acid medium, thus providing new alternatives in order to reduce the toxicity of this process in comparison to inhibitors already on the market.
Acesso aberto (Open Access)
Avaliação microestrutural e mecânica das fibras de cotia e dos compósitos de matriz poliéster
(Universidade Federal do Pará, 2025-01-20) NASCIMENTO, Damares da Cruz Barbosa; OLIVEIRA, Michel Picanço; http://lattes.cnpq.br/6383844066460475; https://orcid.org/0000-0001-9241-0194; CANDIDO, Verônica Scarpini; http://lattes.cnpq.br/8274665115727809; https://orcid.org/0000-0002-3926-0403
The search for sustainable and low-cost materials has driven the use of natural fibers in the development of polymer composites, due to their mechanical and sustainable properties. The aim of this work is to study and characterize a new natural fiber, as well as to study the mechanical properties of composites made with in natura fibres (FC) and mercerized fibres (FM) in volumetric percentages of 10, 20 and 30%. The fibres and composites were characterized using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Thermogravimetry (TGA), Scanning Calorimetry (DSC), Energy Dispersive Spectroscopy (EDS) and Raman Spectroscopy, as well as mechanical characterization. The physical characterization of the fiber indicated an average density of around 0.34 g/cm3. The FTIR of the FC and FM fibers indicated chemical structural changes, which were confirmed with Raman, SEM and EDS. The thermal stability of Cotia fiber in natura was close to 145 and 272 ºC. The mechanical properties of the FC and FM fibers showed average strengths of around 151.32 and 99.98 MPa, respectively. The FTIR and Raman scans of the composites showed few changes related to the variation in chemical treatment, but differences when percentages of fibers were added. The tensile and flexural results indicated that the CF fibers were stronger and stiffer in relation to the matrix than the modified fibers. The SEM confirmed the existence of defects and flaws that caused early rupture of the composites with FM fibers. The single and double F ANOVA confirmed that both factors, chemical modification and increase in volume percentage, had an impact on the final properties. Although the results of the FM fibers did not have a positive impact, the properties of the in natura fibers stand out as efficient reinforcements for engineering applications.
Acesso aberto (Open Access)
A Batalha do Livramento: ensino de História e Conflitos Agrários na Terra Indígena Alto Rio Guamá – TIARG (1990-2024)
(Universidade Federal do Pará, 2024-08-29) SOUSA, Álvaro Gomes de; LIMA, Maria Roseane Corrêa Pinto; http://lattes.cnpq.br/0040917069487308; orcid logo https://orcid.org/0000-0002-8396-0618; SILVA, Wesley Garcia Ribeiro; http://lattes.cnpq.br/2125737316069934; orcid logo https://orcid.org/0000-0002-2734-5442
This study discusses agrarian conflicts involving the Terra Indígena Alto Rio Guamá – TIARG and the subjects that comprise it, especially the Tembé indigenous people of the Jacaré village. It is clear that agrarian conflicts have marked and currently mark a field of existence and resignifications for the Tembé people in relation to the conquest of land. More specifically, the Battle of Livramento is analyzed and, based on experiences in History Teaching, the agrarian struggles in the conquest of land and the approaches to this theme within the classroom in Basic Education are discussed. The Battle of Livramento was an armed conflict between Tembé indigenous people and squatters who occupied the Alto Rio Guamá Indigenous Land, which occurred in the 1990s and reached its peak in 1996, when a group of more than 70 individuals, indigenous people of the Tembé, Timbira, Ka'apor, Guajajara and non-indigenous ethnic groups, were imprisoned by farmers and squatters for three days, subjected to torture and lack of minimum conditions for survival, and were only rescued by the Federal Police in Vila do Livramento, in the municipality of Garrafão do Norte. Thus, we surveyed the bibliography on the subject and developed the research based on teaching experiences in the classroom in an indigenous community, as well as on the reports of subjects who experienced and/or remembered those events that constitute an important historical moment in the region and relevant to the work in History Teaching. The research is developed based on interviews recorded by students in the 1st, 2nd and 3rd years of high school about the importance of discussing agrarian conflicts for the Tembé people, as well as interviews with individuals who participated in the conflict, cross-referencing with bibliographical references relevant to the topic. As a result of the research, we propose a supplementary educational material on the Tembé people and agrarian conflicts, which can be used by both indigenous and non-indigenous teachers, especially in history classes, discussing indigenous school education in the northeast region of the state of Pará in the contemporary Amazon, valuing the history of the Tembé people.
Acesso aberto (Open Access)
O blog no ensino de estudos amazônicos: materiais didáticos em questão
(Universidade Federal do Pará, 2022-09-30) OLIVEIRA, Leonardo da Costa; FERREIRA, Eliana Ramos; http://lattes.cnpq.br/8121954088119834
This master's thesis aims to analyze the access forms of EMEF João Paulo II teachers to the teaching materials of the curricular component Amazon studies through the absence of a textbook that meets the specificities of the school discipline in question. Also part of the restlessness of the work was the peculiarity of the discipline in it is curricular design, as well as it is interdisciplinary characteristic. It was verified the relevance of the teaching materials used by the teachers in the classes of Amazonian Studies, as well as their strategies of production of them. And as a proposal for mediation for the concerns that motivated the present work, the research presents as a didactic product the blog, here used as a pedagogical resource. Considering the Internet a space made of navigable information circuits and a virtual world of communication that expands indefinitely, both teachers and students of Basic Education, who are connected to the World Computer Network, can be have an opportunity to access teaching materials related to the curricular component Amazonian Studies. To realize the proposed objectives of this dissertation, was chosen from the methodological perspective of the case study in a qualitative approach that uses as an instrument for data collection closed questionnaire, interviews and documentary analysis.
Acesso aberto (Open Access)
Branquitude na escola: percepções, relações, poder e resistências
(Universidade Federal do Pará, 2022-12-22) RODRIGUES, Irailton Brabo; LEAL, Luiz Augusto Pinheiro; http://lattes.cnpq.br/7967678999713659; https://orcid.org/0000-0002-0145-5379
The dissertation text that follows is the final result of our studies in the Professional Master's Program in History Teaching, ProfHistória UFPA, in which we present as a theme - WHITENESS AT SCHOOL: PERCEPTIONS, RELATIONS, POWER AND RESISTANCE. We seek to analyze how students and teachers at the school and also the school community, which is mostly black, perceive or do not perceive how whiteness is inserted and works at school, in the teaching of History and in society as power; how their relationships work; and how the resistances are presented. From obtaining quantitative and qualitative data, we seek support in the concepts and studies on whiteness, History Teaching, decoloniality and ethnic-racial relations, making the pertinent dialogues and pointing out paths that contribute to improving and accumulating knowledge, information and training for those who knows that we can combat and overcome relational, educational and racial problems. Thus, part of this dissertation is also a booklet with the descriptions that form the course of our experiences until we reach the debate about whiteness that we currently have, with suggestions for (in) formative interventions for the groups researched at school and with the possibility of expansion to other spaces.
Acesso aberto (Open Access)
Cabanos do Acará: as múltiplas possibilidades de usos de um website para o ensino de História da Cabanagem no município do Acará/Pará
(Universidade Federal do Pará, 2024-06-10) FRAZÃO, Délcio Luis Balieiro; MESQUITA, Thiago Broni de; http://lattes.cnpq.br/9103271903652224; https://orcid.org/0009-0000-4099-8061
The dissertation addresses the multiple possible uses of websites for teaching history, with the history of Cabanagem as its focus. The work dialogues with the fields of public history and local history to discuss the stories and memories about Cabanagem in the municipality of Acará/Pará. The municipality of Acará is recognized by a large part of its population as the birthplace of Cabanagem. Leaders of the Cabano movement in the 19th century originated in the lands of Acará and among them Félix Clemente Malcher, the first Cabano president and landowner in the region, stands out. Currently, the municipality pays tribute to the history of Cabanagem through the names of public buildings, streets, avenues, in addition to keeping important places of memory of Cabanagem preserved in its rural area, such as Fazenda Acará-Açu, a property that belonged to Félix Clemente Malcher and which was attacked by imperial troops and almost completely destroyed. In schools and in the various communities in the municipality, students and residents bear the surnames of Cabanagem leaders in their names and in any part of the municipality it is always possible to find someone who knows a story or story about Cabanagem to tell. Throughout the development of this dissertation, we sought to gather on a website entitled Cabanos do Acará part of this information through the dissemination of interviews carried out with teachers from the public school system, photographs and also through entries that can be updated by students from the network. public education system in Acará. In this work, the website is presented in its implementation phase and with ideas that we consider to be initial and which, therefore, present limitations, but give the dimension of the size and possibilities that we can achieve as it is implemented as an instrument for teaching history of Cabanagem in the municipality. The dissertation also presents a memorial about how I became a history teacher, how I experienced a postgraduate degree in online history teaching and how the history of Cabanagem is also part of my trajectory and that of the generation of students from degree in history from UFPA between the years 1990/2010. Among the practical implications of this dissertation, we highlight the registration of the website as a teaching project with the State Department of Education (SEDUC), which made available hours for its implementation in the Acará state education network in 2024.
Acesso aberto (Open Access)
Cangaço, saberes experienciais e ensino de História: uma cultura histórica e suas ressignificações no espaço escolar
(Universidade Federal do Pará, 2023-12-15) OLIVEIRA, Richardy Leal; SILVA, Wesley Garcia Ribeiro; http://lattes.cnpq.br/2125737316069934; https://orcid.org/0000-0002-2734-5442
The teacher as an agent of the teaching and learning process also presents himself as an integral part of a social context with two-way streets, leading and opening paths for the student to build reflections and bases for cognitive, critical and social development. Therefore, being a teacher is also in conditions of constant learning and maturation, experiential knowledge is an important part of this context of professional and personal improvement, there are various decision-making processes, whether macro or micro, throughout everyday life. shaping over time the logic undertaken by the latter within the classroom and in guiding the student in their respective endeavors within education. This entire context will directly affect the choices and/or mobilization of content in the classroom. The content of the cangaço is one of those, among many others, that significantly changes the dynamics of mobilization on the part of teachers and students and therefore the reflective context of teaching and learning, are dynamics beyond the event itself in the gone from the first half of the 20th century, but today a process of mnemonic resignification built in different contexts, settling through various elements and spaces. A social movement transmuted into memory and used by the teaching of History as school knowledge capable of providing opportunities for male and female students to reflect deeply on various tangential topics. This research using a qualitative methodology will analyze the content of the cangaço from its aspects in the normative documents, through the different experiential knowledge of teachers and students in the macro and micro dimensions of history teaching, using the classroom as the main field of research. , as well as analyzing cultural objects constructed by this body in movement from a set of collective memories. Furthermore, fulfilling its role as research within the scope of a professional master's program, it proposes a didactic pedagogical artifact that assimilates the content of cangaço in different monumental points encouraged by deepening and indications of mobilization of the same, compartmentalized into six categories.
Acesso aberto (Open Access)
Cantando a história: produção de paródias no ensino de História
(Universidade Federal do Pará, 2021-12-29) SILVA, Maria Fabíola da; CHARLET, Eliane Cristina Soares; http://lattes.cnpq.br/6000275052016633
The present work presents and analyzes parodies produced in the classroom by 7th grade students at the Licurgo Peixoto School (situated in the municipality of São Miguel do Guamá- PA), based on the Class-Workshop model of teacher Isabel Barca. Substantiated on approaches aimed for History Teaching, the research discusses the use of music as a fruitful tool in the assimilation of the subject's contents. The need to expand and to create new teaching methodologies motivated considerably the choice of this theme, as well as thedebates about the Didactics of History and the historical awareness.
Acesso aberto (Open Access)
Caracterização de tintas industriais aplicadas na região amazônica a partir de análises físico-químicas, mecânicas e de durabilidade
(Universidade Federal do Pará, 2024-02-28) LUCAS, Mathaus Moraes; SILVA, Alisson Clay Rios da; http://lattes.cnpq.br/7389345867032737; https://orcid.org/0000-0001-9186-2287
In Brazil, the industrial sector of paints and varnishes is among the five largest in the market. The manufacture of paints for various applications, with technology and technical responsibility, equals the most advanced global production centers. The durability of a paint refers to its resistance to weathering. For weathering, a weather-resistant paint is necessary so that fading does not occur on the substrate where it will be used, which can occur among some factors, due to the incidence of sunlight and heavy rains. The North region, with high rainfall, influenced by instability lines, presents significant spatial and seasonal heterogeneity of rainfall and has the highest annual rainfall total. Given this reality, a paint commercially applied in the Amazon region was developed. In the standard formulation, variations of mineral loads (Kaolin, Dolomite and Precipitated Calcium Carbonate) were made and subsequently analyses and tests were carried out to evaluate the performance of this paint, compared with the original formulation, such as abrasion resistance and weathering resistance. The paint production methodology will be according to Castro (2009) using Hare’s technique (1974). The characterization of the paints in the fresh state was carried out through the Viscosity, pH and specific weight tests, while the characterization of the paints in the hardened state was carried out through the abrasion resistance tests, weathering resistance test and Scanning Electron Microscopy. The physico-chemical tests revealed that, in relation to Stormer viscosity, all formulations exceeded the standard (130 KU), with the exception of the paints containing 30% Dolomite, 15% PCC, 15% Dolomite and the ternary combination of 5% Kaolin, 5% Dolomite and 20% PCC. As for the specific weight, the formulation that came closest to the standard was the binary paint with 15% Kaolin and 15% PCC, presenting an average value of 1.43 g/cm³. In terms of pH, all formulations showed alkalinity, with values ranging between 7.5 and 9.6. After a period of exposure of 180 days, none of the mixtures, including the standard formulation, showed the formation of pathologies, demonstrating resistance to weathering. The formulations with 30% Dolomite; 15% PCC and 15% Dolomite; 5% PCC, 5% Kaolin and 20% Dolomite; 10% Kaolin, 10% PCC and 10% Dolomite, exhibited respectively 300, 290, 240, 270 cycles of abrasion resistance, indicating the potential of these paints for a variety of applications, such as floor paints, external paints and road paints.
Acesso aberto (Open Access)
Caracterização do tecido fibroso de tururi e avaliação de propriedades mecânicas de compósitos de matriz poliéster reforçados com tecido fibroso de tururi
(Universidade Federal do Pará, 2023-01-30) SANTOS, Avener Gleidson Andrade; CÂNDIDO, Verônica Scarpini; http://lattes.cnpq.br/8274665115727809; https://orcid.org/0000-0002-3926-0403
In recent decades, the search for materials with high mechanical performance and that are in accordance with sustainability requirements has become increasing. In the context of sustainability, the United Nations (UN) established in 2015 the Sustainable Development Goals (SDGs), in order to guide the paths to sustainable development. The use of waste to produce new materials is beneficial, because the use of these materials represents a solution for environmentally friendly disposal, thus covering the requirements established by the SDGs. The use of natural fibers in the production of new materials has increased significantly in the last decade. The use of natural fibers as reinforcement in polymer matrix composites is already well established. This is due to the fact that some fibers have high mechanical performance and good thermal stability, two highly attractive properties in composite materials. Composites reinforced with natural fibers have a vast field of application, and can be used in civil construction, aerospace, and automotive industries, among others. In this scenario, the use of tururi fabric as a reinforcement agent in composites of polymeric matrix emerges as a viable alternative for sustainable disposal of this waste coming from the harvesting stage of its fruits. Thus, this study aims to characterize the tururi fibrous tissue by optical microscopy, scanning electron microscopy, X-ray diffraction, thermogravimetric analysis and Fourier transform infrared spectroscopy (FTIR), as well as to determine physical properties such as density, moisture content and weight. The composites were produced using a 2.5, 5.0 and 7.5% by mass percentage of reinforcement. Additionally, tensile, flexural and charpy impact tests were performed. The characterizations revealed that the tururi fibrous tissue is composed of fibers of various diameters and has regions of bifurcation, indicating that the tissue can act in different ways when incorporated as reinforcement. The density, moisture content and weight had average values of 1.17 g/cm3, 16.58% and 146.61 g/m2, respectively. The thermal analysis revealed good thermal stability for the tururi fabric. The mechanical tests pointed out that as the incorporation of reinforcement occurred, the composites tested in traction had a loss of resistance, presenting a loss of 15MPa in relation to the matrix. When requested in flexion the composites reinforced with up to 2.5% showed better mechanical performance, with values of 63.9 MPa. The impact test revealed that the energy absorption capacity increased by 371% compared to the matrix, which indicates that the fabric acted as a good reinforcement agent.
Acesso aberto (Open Access)
Carnavescola: produção de uma sinopse de carnaval e composição de samba enredo: uma proposição ao ensino de História
(Universidade Federal do Pará, 2021-08-10) OLIVEIRA, Alex Costa de; MORAES, Cleodir da Conceição; http://lattes.cnpq.br/8105990413339104
The current dissertation aims to discuss a suggestion for an action research proposal for teaching history presented to the professional master's course at ProfHistória-UFPa. This aims to firstly understand the popular cultural manifestations of Brazil, such as: samba and carnival, as pedagogical potentialities to be used in teaching-learning within a classroom (even remote) of basic education. For this, a two-stage research process is proposed. The first aimed at achieving academic goals and the second with didactic-pedagogical purposes. In this sense, what is intended is the dialogical link between the concepts of memory, identity: collective and/or cultural, historical awareness and their symbolic representations in the daily lives of students using these potential tools to teach history through production, construction, of a synopsis of carnival and of a textual-poetic body of samba plot by the students. The methodology will also be developed having as support and approach conceptions used in historiography, such as: History of the Present Time, Local History, Oral History. Through sources: visual, virtual, written, sound and oral. Regarding the didactic-pedagogical proposal, the intention is to take it to the classroom (in this case, we had to resort to remote classes due to the social and historical context imposed by the covi-19 pandemic, between 2020 and 2021) experiences of constructing historical reality through samba and carnival, specifically bringing the student body closer to these social, cultural experiences, and also using the synopses and lyrics of the plot sambas, created by these historical subjects, as a source of reflection to historical consciousness analyzed in teaching practice by the professor-researcher. Finally, bring the importance of this relationship "From the street to the classroom" as the construction of analysis and knowledge for exclusively didactic-pedagogical purposes in a History class.
Acesso aberto (Open Access)
Cartografia dos saberes culturais ribeirinhos: ensino de História e as vozes marajoaras (rio Guajará-Curralinho/PA)
(Universidade Federal do Pará, 2025-02-17) RAIOL, Alex de Andrade; ARENZ, Karl Heinz; http://lattes.cnpq.br/0770998951374481; https://orcid.org/0000-0001-9500-3666
This Master’s Thesis of the Professional History Teaching Program (PPGEH/UFPA) theme is the Teaching of History in the context of Riverine Education. Based on literature review on the subject, we consider that the Teaching Curriculum of the Rural/Riverine Education has not always been adequate to the reality of its demographic, as well as that the invisibility of the social and cultural practices of the peoples from the Countryside contributes to a form of Education that maintain itself Exclusionary, Eurocentric, Monocultural Linear and Evolutive. Henceforth, this research has as its general objectives the reflection about the concept of Curriculum, the Schools Historical Knowledge, Local History and Historical Consciousness; moreover, intend to give visibility to the Local History of the communities on the Guajará Riverside and the heritage knowledge of its inhabitants, allowing them due recognition and place in the History classes. The locus of research is the E.M.E.I.F. Portugal, where I have been working as History Teacher since 2017. The school is located on the right bank of the Guajará River, in a rural/riverside area of the Municipality of Curralinho-PA, and approximately 80km far from the urban center. The research was quantitative and qualitative in nature, of the Case Study type. As Historical Sources, was used a diverse set including Official Documentation as the Pedagogical Guidelines of the Portugal School (2018), the Educational Curriculum of Curralinho Municipality (2020), the Course Plan for the History Classes (2022) and the School Census of Curralinho Municipality (2023). Were also used data from the classroom activities, Fieldwork Journal, Photographs and Oral Sources collected through semi-structured interviews with five Elderly inhabitants of the community. Based on the source analysis, we concluded that the Municipality Curriculum and the Course Plan for History in the classes of 6th through 9th year present an organization of educational content in the field of History that does not take in to account the characteristics and specificities of the Rural/Riverine life in the region, despite being in line with national legislation and officially recognizing the existence of cultural diversity. The research also allowed the formulation of a Cartography of Cultural Knowledge of the Guajará River, where we identified cultural practices in the surrounding community that were associated with heritage knowledge about the waters, forests and lands of the region. Lastly, as propositional aspect of the Thesis, we developed a Didactic Sequence directed to History Teachers in Riverine Schools, which aims to rescue, register and value the memories of the Riverine peoples through a pedagogical strategy with the students as protagonists. It was intended, therefore, the making of a pedagogical practice able to communicate with the social and economic dimensions of the place, and to correlate this dimensions with the Schools Historical Knowledge in an effort to amplify the voices of Riverine subjects so that they can also be heard within the “walls” of the school.
Acesso aberto (Open Access)
Cartografia social como ferramenta para o ensino: a História do Povo Indígena Mortigura por meio de um mapa digital em Barcarena-PA
(Universidade Federal do Pará, 2024-08-28) FERREIRA, Vinicius Machado; BASTOS, Carlos Augusto de Castro; http://lattes.cnpq.br/5957760591235451
This professional master's dissertation in history teaching starts from the use of the textbook "Conquista Solução Educacional" as the object of study for the analysis of maps, highlighting its importance at Instituto Cristo Rei, where it is mandatory and linked to the National Common Curricular Base (BNCC). The use of this book faces challenges due to the extent of the content and the limited class hours. The maps, present in the book, are seen as resources to make classes more reflective and dynamic. Authors such as Kazumi Munakata (2016) and Alain Choppin (2004) offer perspectives on the role of the textbook in school culture, while others like Harley (2005) and Carlos Tiné da Silva Pereira (2020) emphasize the power and construction of cartography, respectively. The immersion of students in social maps, especially those produced by the Mortigura indigenous people, expands their historical and spatial understanding, challenging Eurocentric views. The need to broaden students' perception of Portuguese colonization and the experiences of the Mortigura required the construction of a digital map. Authors such as Souto (2017) and Danilo Alves da Silva (2018) discuss the importance of using digital resources, in addition to my mediation as a teacher-researcher in the teaching and learning process. Social cartography, made by the Mortigura indigenous people, was used as the main teaching material, seeking to value their knowledge and resistance in the history of the past and present time. Thus, the active and interactive methodological approach, combined with workshops, allowed students a deeper understanding of the territory and history of the Mortigura, as well as of the municipality of Barcarena, contributing to a decolonial teaching of history.
Acesso aberto (Open Access)
Cartografias do patrimônio cultural do bairro do Jurunas (Belém-Pa): espaço, tempo e identidade no ensino de História
(Universidade Federal do Pará, 2020-12-03) CORRÊA, João Nazareno Pereira; BASTOS, Carlos Augusto de Castro; http://lattes.cnpq.br/5957760591235451
This text deals with the steps taken towards a sociocultural cartography of the Jurunas neighborhood (Belém-Pará), according to the cognitive point of view of students from two classes of Fundamental Maior (8th and 9th Years), from Escola Vereador Gonçalo Duarte. Research / teaching strategy, mainly, focused on moving elements of the local history of this urban space and its cultural heritage with the knowledge of school history, through the use and analysis of mental maps, textual productions and photographic records formulated by them subjects / students. The application of this mapping process or didactic sequence, emerged from the favorable meeting of my teaching experiences with the scientific theory of History Teaching, especially from the reflections emanating from the perspective of local history, the plural notion of heritage and important aspects of the field Cartography. That said, I can say that this research effort was able to glimpse the gestures that such students practice to territorialize the spaces in which they live and, with that, offered the possibility to unveil new scenarios of living heritage or in continuous movement of this southern region of the Capital of Pará.
Acesso aberto (Open Access)
Centro Histórico de Belém: lugar de história e memória na sala de aula
(Universidade Federal do Pará, 2019-01-29) MARTINS, Lourdes Machado; SILVA, Wesley Garcia Ribeiro; http://lattes.cnpq.br/2125737316069934; MACÊDO, Sidiana da Consolação Ferreira de; http://lattes.cnpq.br/4202561791565993
The dissertation Centro histórico de Belém: place of history and memory in the classroom, aims to develop a didactic proposition, to teach history from heritage sources, incorporating the use of local historical patrimony. The experiment was carried out at the State School of Elementary and Middle School Rui Barbosa, located at Rua Joaquim Távora, 408 in the neighborhood of Cidade Velha. For this research, two monuments of the Historic Center of Belém were selected: the Castle Fort and the Frei Caetano Brandão Square, as a space for the development of teaching and learning in interface with local history. The result was considered positive, because a great involvement of the students with the proposed tasks was observed, a fact that favored the learning of the same ones. As an educational product of the dissertation, the third chapter presents the pari passu of the didactic preposition that proposes to be used in teaching history in different series and levels of teaching. The didactics of history used foresees a methodological course in which the teacher will be the interlocutor in dialogue with the students, because it is he who will present to the students the sources that will be used, as well as, guide them in the construction of reflections about the historical patrimony , whose main objective is to stimulate the construction of historical knowledge in different spaces of memory. The students, in turn, will be agents of this research, since they will have the opportunity to analyze the sources directly and, at different times, they will be the interlocutors through the answers that they will find in the crossing of the sources to each presented question, whose objective is to approach the students of local history through direct contact with sources and local themes. The project was theoretically reflected in the debates and disciplines in the first group of the Professional Master's Degree in History Teaching, highlighting the Rüsenian didactics in epistemological interaction with the debates about heritage education. The study of the historical center from the perspective of heritage education is the educational product as a result of the master's thesis that seeks to make the dialogue between epistemology and praxis.