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Documentos Administrativos Documentos administrativos da UFES (Relatórios institucionais, Atos normativos, Resoluções, Portarias e etc)Livros Digitais Livros digitais "ebooks" (e-livros) publicados ou adquiridos pela UFESProdução Científica Produção científica e técnica da UFES, como Artigos, livros e capítulos, trabalhos apresentados em eventos, entrevistas, resenhas, traduções, patentes, cultivares, marcas, etc.Teses e Dissertações Teses e dissertações depositadas no repositório da UFES
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Da escultura tradicional à modelagem 3D: aspectos históricos, técnicos e patrimoniais da arte pública
(Universidade Federal do Espírito Santo, 2024-10-04) Fernandes, João Victor Silva; Cirilo, Aparecido José; https://orcid.org/0000-0001-6864-3553; Mello, Júlia Almeida de; Castilho, Liliana
This dissertation investigates the relationship between techniques, the evolution of tools, and new technologies that permeate the classical and contemporary sculptural process, while exploring connections between art and cultural memory within the urban ecosystems of Espírito Santo, with an emphasis on the Centro-Oeste region. This work is rooted in the extension project "Urban Ecosystems and Culture: Between Memory, Art, and History in the Training of Basic Education Teachers in the Centro-Oeste of Espírito Santo," which, over a year, promoted various educational actions focused on preserving local history. Based on the digital recreation of monuments through 3D modeling and printing, and the adaptation of these elements into pedagogical tools, such as the thematic chessboard, the study seeks to deepen the connection between the miniatures produced and the regional cultural heritage, promoted by the practice of collecting. Moreover, the research also addresses the impact of these initiatives on the transmission of heritage values and the strengthening of regional identity, reflecting on how art, combined with objects of affection, can serve as a link between past and present, valuing the cultural diversity and collective memory of Espírito Santo.
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A utilização da variação social gírias no ensino da língua inglesa na educação básica
(Universidade Federal do Espírito Santo, 2024-08-30) Nascimento, Larissa Souza; Meira, Ana Cláudia Hebling; https://orcid.org/0000-0001-8848-6903; Martins, Raisa Maria de Arruda; Santos, Kelly Barros; http://lattes.cnpq.br/
The research aimed to investigate students’ perceptions of the use of slang in the context of English language teaching and learning. The theme aimed to include linguistic variation (slang) as a teaching and learning resource, in order to analyze whether this proposal was configured in a more attractive and meaningful format from the point of view of students immersed in the subject under discussion. In this way, the literature that underpins this study concerns the theoretical-methodological assumptions of sociolinguistics as well as the context of foreign language teaching and learning. This is a qualitative investigation, which was formalized through field research. The elements were produced through a discussion group (trigged by the semi-structured interview technique) and the introduction of a pedagogical workshop. An audio recorder was used as a tool for collecting information, and the recordings were later transcribed. The analysis resulting from the processes described was carried out using the content analysis method. In view of this, it is believed that the use of slang is effective because this linguistic variation usually makes up the daily vocabulary of young people, when used in the mother tongue, while at the same time enabling affinity and interest in the foreign language under discussion, since the presence of correlations between informal expressions in the Portuguese and English languages is perceived and, therefore, results in contextualized classes that have meaning and are meaningful to learners in the context of English language classes. The analyzed results showed that the pedagogical workshop, linked to the contextualization of the process with the use of slang as a methodology in language classes, resulted in linguistic education, which dialogues with the communicational reality of the research subjects.
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Reciclagem do cátodo de bateria de íons de lítio do tipo LiFePO4 (LFP) e aplicação do material reciclado como pseudocapacitor
(Universidade Federal do Espírito Santo, 2024-07-30) Querubino, Renan Bobbio; Freitas, Marcos Benedito José Geraldo de; https://orcid.org/0000-0003-1521-774X; Machado, Marta Albuquerque; Pietre, Mendelssolm Kister de
Recycling lithium-ion batteries (LIBs) is an effective method of solid waste treatment and is crucial for the recovery of scarce, high-value metals that are of great technological importance. In this work, spent LIBs from electric vehicles were recycled through hydrometallurgical and pyrometallurgical processes, utilizing both citric acid and hydrogen peroxide leaching and alkaline leaching. The exhausted cathode material was characterized using X-ray Diffraction (XRD), Raman Spectroscopy, Energy Dispersive Spectroscopy (EDS), Scanning Electron Microscopy (SEM), and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), identifying LiFePO4, Fe2O3, and FePO4 as the primary phases in its composition, along with the secondary phases Fe(OH)3 and Fe2(PO4)O. The hydrometallurgical recycling process, performed by acidic leaching of the cathode with 1.0 mol L−1 citric acid and hydrogen peroxide, showed low selectivity for the leaching of lithium and iron. In contrast, alkaline leaching proved to be more effective in recovering lithium and preserving the structural components of the material, such as LiFePO4, while not leaching iron, resulting in a more efficient separation of battery constituents. From the residue of alkaline leaching, lithium ferrite (β-LiFe5O8) was synthesized. Structural and morphological characterizations of lithium ferrite, performed by XRD, Raman Spectroscopy, and SEM, indicated the formation of a disordered crystalline phase with agglomerated grain morphology, with particles of undefined size. The electrochemical evaluation of the recycled material as a pseudocapacitor was promising. The recycled material exhibited a pseudocapacitive profile with a maximum specific capacitance of 7.6 F g−1 and capacitance retention of 82% over 250 cycles, at a charge-discharge current density of 0.7 A g−1. The pseudocapacitive profile of this material included contributions from electric double-layer charge storage and Faradaic processes. This study demonstrates the feasibility of recycling spent lithium-ion battery materials, transforming them into high-value-added materials with promising technological applications, contributing to sustainability and the circular economy.
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Valorização dos resíduos de café para obtenção do biogás
(Universidade Federal do Espírito Santo, 2024-09-17) Reis, Thiago Medeiros dos; Lira, Taisa Shimosakai de
; https://orcid.org/0000-0002-2690-242X; http://lattes.cnpq.br/8699243861996813; Pinotti, Laura Marina ; https://orcid.org/0000-0002-5012-6811; http://lattes.cnpq.br/5616576281329159; https://orcid.org/0009-0009-3594-2309; http://lattes.cnpq.br/2591297358528145; Xavier, Thiago Padovani ; https://orcid.org/0000-0001-7148-9921; http://lattes.cnpq.br/8669754182140698; Vieira, Marcelo Fernandes
; https://orcid.org/0000-0001-7290-8569; http://lattes.cnpq.br/5654735215017528
Coffee The coffee production in Espírito Santo plays a crucial role in the local economy, being fundamental for the agricultural and financial development of the region. As Brazil's second-largest coffee producer, the state contributes over 30% of the national production, with significant outputs of both Arabica and Conilon. The by products generated, such as coffee grounds and husks, represent a valuable opportunity for energy production. However, the challenge lies in maximizing the utilization of these by-products, which are notable not only for their quantity but also for their rich composition of organic matter and lipids, essential elements for methane production. The valorization of these residues through anaerobic digestion is promising, offering a sustainable disposal method and generating useful by-products, such as biogas for electricity production and organic fertilizer. However, anaerobic digestion faces challenges related to nutrient balance, composition, and complexity of high molecular weight organic molecules. One way to address these issues is by pre treating the organic matter to increase biodegradability and bioavailability of the molecules and performing codigestion to balance nutrients. In this context, this study assessed the biochemical potential of methane (BMP) from domestic coffee grounds (both treated and untreated) and industrial coffee husks (both treated and untreated) in combination with food waste (codigestion). Sludge from a wastewater treatment plant (WWTP) was used as the inoculum. Duplicate batch anaerobic reactors (250 mL) were fed with substrates in different proportions, using a substrate/inoculum ratio of 1. BMP tests were conducted on average for 20 days at mesophilic temperature (35±2 °C). The highest BMP levels were detected with 50% treated coffee grounds (400 NmL/gSV), 50% treated coffee husks (344 NmL/gSV), and 100% food waste (600 NmL/gSV). On the other hand, 100% coffee grounds or coffee husks showed low BMP percentages (88 NmL/gSV) and (186 NmL/gSV) respectively, due to low carbon/nitrogen ratios and pH outside the ideal range. These results indicate that coffee residues have potential for energy recovery through anaerobic digestion (AD), highlighting AD as a promising alternative for the valorization of these residues
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Explorando a diversidade celular : guia ilustrado digital para o ensino de células e tecidos
(Universidade Federal do Espírito Santo, 2024-04-03) Dias, Carolina Gonçalves; Mancini, Karina Carvalho ; https://orcid.org/0000-0003-3275-0693; http://lattes.cnpq.br/4993110466694381; https://orcid.org/0000-0002-3207-8641; http://lattes.cnpq.br/9505727436974042; Cañete, Carolina Lomando; https://orcid.org/0000-0002-3868-3703; http://lattes.cnpq.br/4443575779106615; Ferreira, Adelina Aparecida Francisca; https://orcid.org/0000-0002-7999-4946; http://lattes.cnpq.br/2179940182647248
Cells possess great morphological and functional diversity, resulting in specialized cell types that form the histological tissues of the human body. The teaching and learning process regarding the contents involving cells and tissues have always been considered complex due to their microscopic nature, abstraction, structural deficiencies in public basic education schools, difficulty in finding suitable supporting material, and lack of detailed connections between specialized cells and tissues. For the reasons mentioned, this Master's Thesis aimed to construct a digital guide called "Exploring Cellular Diversity: A Knowledge and Activities Guide," as an educational product, in order to contribute to the integrated teaching of cellular and tissue biology in high school, targeted towards students and teachers. The Illustrated Digital Guide consists of 131 pages and is organized into sections that provide a review of cells, illustrations, and information on 14 specialized cell types along with activity suggestions. For each of the specialized cell types, the Guide presents the morphological and functional description, location in histological tissues, and interesting facts. The following specialized cells were addressed: neuron, red blood cell, adipocyte, myocyte, enterocyte, fibroblast, goblet cell, melanocyte, macrophage, lymphocyte, mast cell, osteoclast, spermatozoon, and oocyte. The Guide also includes a section with suggestions for 06 activities aimed at high school, placing the student as the protagonist of their learning process, incorporating investigative teaching, playfulness, and collaborative work as central elements. The educational product is an innovative production for the teaching of cells and tissues, combining original illustrations of specialized cells, descriptions, micrographs, and classroom activities