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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 UFESTrabalhos Acadêmicos Trabalhos acadêmicos de conclusão de curso (TCC) de graduação e pós-graduação lato sensu
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Avanços metodológicos na análise da distribuição de lignina na parede celular e caracterização anatômica de madeiras nativas da Amazônia
(Universidade Federal do Espírito Santo, 2026-02-24) Silva, Josy Tainara Silva; Moreira, Silvino Intra ; https://orcid.org/0000-0003-4693-8806; https://lattes.cnpq.br/9570271977161750; Moulin, Jordão Cabral ; https://orcid.org/0000-0002-5543-3853; https://lattes.cnpq.br/3577181658928552; https://orcid.org/0009-0009-9162-9878; https://lattes.cnpq.br/3646240341036130; Latorraca, João Vicente de Figueiredo ; https://orcid.org/0000-0002-5969-5199; https://lattes.cnpq.br/9612404360795583; Almeida, Maria Naruna Félix de ; https://orcid.org/0000-0001-6360-7780; https://lattes.cnpq.br/5436388734663217; Dambroz, Graziela Baptista Vidaurre ; https://orcid.org/0000-0001-9285-7105; https://lattes.cnpq.br/2988548512574129
Wood from native species of the Amazon Forest exhibits high structural and chemical complexity, whose understanding is still limited by the scarcity of available information. This dissertation aimed to evaluate methodologies for lignin analysis using fluorescence microscopy, as well as to characterize wood anatomy and analyze the distribution and fluorescence intensity of lignin in different cellular regions in wood from native Amazonian species, based on the application of the validated technique. In the first chapter, different chemical treatments and image processing methodologies were tested for the analysis of cellular lignin using fluorescence microscopy, aiming to validate the technique through the relationship between total lignin content in wood and the fluorescence intensity emitted in histological sections. Seven species were analyzed: melancieira (Alexa grandiflora Ducke), angelim saia (Parkia pendula (Willd.) Benth. ex Walp.), guaruba (Vochysia maxima Ducke), angelim pedra (Hymenolobium petraeum Ducke), freijó (Cordia sagotii I.M. Johnst.), pequiá (Caryocar villosum (Aubl.) Pers.), and angelim vermelho (Dinizia excelsa Ducke). Total lignin content in wood was obtained using the Klason method, and four treatments were used for fluorescence intensity analysis: in natura autofluorescence, autofluorescence without extractives, basic fuchsin, and Mäule. Images were processed using the ImageJ software, in which three image processing methodologies were tested. The results indicated that autofluorescence in sections without extractives, analyzed using an automated background subtraction method, showed the best performance and high correlation with total lignin content, ensuring speed, reproducibility, and standardization of the results. In the second chapter, wood anatomical characterization and the analysis of lignin distribution and fluorescence intensity in different cellular regions were performed. The anatomical analysis revealed high interspecific variability in the dimensions, frequency, and organization of vessels, fibers, rays, and intervessel pits. Lignin analysis showed a predominance of guaiacyl units in vessel walls and in the middle lamella, whereas fibers exhibited interspecific variations in lignin composition. Fluorescence intensity was higher in the middle lamella, followed by vessel and fiber walls. Overall, the results demonstrate that each Amazonian species combines vessels, pits, fibers, rays, and lignin in a functionally integrated manner, expressing distinct anatomical strategies that support hydraulic performance and the mechanical resistance of wood
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Transecção linear utilizando drone de câmera termal para estimativa de diversidade e densidade de presas de Harpia harpyja (Linnaeus, 1758) na Floresta Nacional de Carajás
(Universidade Federal do Espírito Santo, 2025-12-16) Silva, João Vitor Pasinato; Santos, Aureo Banhos dos ; https://orcid.org/0000-0003-1513-5816; https://lattes.cnpq.br/8121966714896903; https://orcid.org/0009-0007-7672-4629; https://lattes.cnpq.br/5771312532122751; Martins, Agnaldo Silva; https://orcid.org/0000-0003-2160-1326; https://lattes.cnpq.br/9929035189946817; Meller, Dante Andres ; https://orcid.org/0000-0002-4422-6728; https://lattes.cnpq.br/8505295164876417
Drones have become a widely used technology for wildlife monitoring in recent years. In addition to high-resolution cameras, these devices incorporate advanced features that assist researchers, such as thermal cameras, which enable more efficient detection of fauna—particularly in environments where animals are camouflaged within the vegetation. Despite the advantages of drones equipped with thermal sensors, their use still presents limitations, requiring methodological adjustments to maximize efficiency and produce data that can estimate ecological parameters with greater accuracy. In this study, we tested the use of a drone equipped with a thermal camera under a standardized semi autonomous flight protocol, aiming to differentiate areas with and without harpy eagle (Harpia harpyja) nests based on the detection of arboreal fauna. Ten distinct species were identified, with all animals classified at least to the class level and approximately 76% identified to the species level. The detection rate obtained was 3.36 individuals per kilometer and 0.71 records per kilometer. Alouatta belzebul was the most frequently recorded species, with 41 records and 205 individuals, allowing us to estimate its density in the study area at 15.38 individuals per square kilometer. The comparison between areas with and without harpy eagle nests showed no significant difference in the occurrence of potential prey species. The method proved efficient for detecting and identifying diurnal arboreal fauna, particularly A. belzebul, when compared to the traditional ground based transect observation method, yielding a greater number of records and individuals with lower sampling effort. However, it is necessary to increase sampling effort and test new flight parameters—such as altitude and speed—and alternative strategies, such as nocturnal flights using spotlights, to enhance the detection of smaller, non-gregarious, and nocturnal arboreal species that were undersampled in this study
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Um estudo sobre a influência das políticas monetárias sobre os retornos dos fundos de investimentos imobiliários brasileiros
(Universidade Federal do Espírito Santo, 2025-03-12) Lima Filho, Moisés Alves de; Scalzer, Rodrigo Simonassi; https://orcid.org/0000-0003-4639-6613; https://lattes.cnpq.br/8730846229293621; https://orcid.org/0009-0002-9332-6001; https://lattes.cnpq.br/6985885308914747; Louzada, Luís Cláudio; https://orcid.org/0000-0001-5554-0379; http://lattes.cnpq.br/; Roquete, Raphael Moses; https://orcid.org/0000-0001-5554-0379; https://lattes.cnpq.br/8955126512449261
This study aimed to examine the influence of monetary policies, particularly the variations in interest rates and inflation, on the returns of Brazilian Real Estate Investment Funds (FIIs), checking whether this relationship differs according to the funds' classifications and segments of activity. A sample of FIIs listed on B3 from 2011 to 2023 was analyzed, using quarterly data on their returns adjusted by dividends distributed, short-term (SELIC) and long-term interest rates (DI1 Index with a five-year maturity), and inflation (IPCA and IGP-M). The approaches used were fixed-effects regressions robust to heteroscedasticity and autocorrelation, applied separately to the data from each classification, as well as to the data as a whole, inserting interactions between the explanatory variables and classifications/segments. Additionally, the robustness of the results was checked by applying a mixed-effects model, incorporating random effects at the unit and period levels, as well as random coefficients that allow the fluctuation of interest rates and inflation across groups. The results confirm the hypotheses raised that monetary policies are relevant to explain the returns of Brazilian Real Estate Investment Funds, but specifically for Equity and Mortgage, interest rates are detrimental and beneficial to their returns, respectively. The analysis of the influence on the segments did not show significant differences, which refuted the hypothesis that monetary policies influence FII returns more (or less) depending on the segment in which their assets are located. This study contributes to the literature by investigating this relationship in an emerging market like Brazil, with a specific focus on the differences between FIIs. The research also stands out for using a hierarchical model (with mixed effects), allowing for a more robust analysis considering the considerable heterogeneity among the groups (classifications and segments).
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A rede de solidariedade feminina em A falência, de Júlia Lopes de Almeida, e As meninas, de Lygia Fagundes Telles
(Universidade Federal do Espírito Santo, 2026-02-27) Alves, Brunella Vasconcellos; Nathanailidis, Andressa Zoi; https://orcid.org/0000-0002-6264-2362; https://lattes.cnpq.br/3371274869641421; https://orcid.org/0000-0003-2976-6010; https://lattes.cnpq.br/4584969645319395; Caser, Maria Mirtis; https://orcid.org/0000-0001-9247-8199; https://lattes.cnpq.br/1341358191671907; Figueiredo, Eurídice; https://orcid.org/0000-0002-8265-3034; https://lattes.cnpq.br/9000511359809457
The scope of this study is to conduct a comparative analysis of the female solidarity network in the works A Falência, by Júlia Lopes de Almeida, and As Meninas, by Lygia Fagundes Telles, as a form of resistance to the helplessness experienced by the female characters. Specifically, through a review of the literature, the objective is to describe the history of feminist movements, the problematization of female rivalry, and to highlight the importance of strengthening female solidarity in confronting sexist oppression. Finally, it seeks to identify similarities and differences between the works analyzed, both in relation to the historical context of each book and in the representations of the unity of the female characters. To this end, using a comparative methodology, the research draws on the contributions of researchers such as Mary Wollstonecraft (2016), Simone de Beauvoir (1970), Pierre Bourdieu (2023), bell hooks (2019), Tânia Franco Carvalhal (2006), Constância Lima Duarte (2003), Zahidé L. Muzart (2014), Eurídice Figueiredo (2020), among others. Despite having been published in different historical contexts of the 20th century, the novels are similar in the fate of the subversive characters, who survive the neglect caused by male oppression through a network of female bonds. Thus, the research points out that the writers, from a female authorship perspective, exempted the transgressive characters from possible punishment, using female unity.
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Fornecimento ótimo de serviços ancilares por parte de geradores distribuídos em sistemas de distribuição de energia elétrica
(Universidade Federal do Espírito Santo, 2025-10-20) Nascimento, Daniel Fonseca do; Rueda Medina, Augusto César ; https://orcid.org/0000-0002-4291-3153; https://lattes.cnpq.br/7397584412509839; https://orcid.org/0009-0006-6730-7527; https://lattes.cnpq.br/3412161686902841; Santos, Walbermark Marques dos ; https://orcid.org/0000-0002-9871-6028; https://lattes.cnpq.br/5558697161842579; Ferraz, Rafael Santos Freire ; https://orcid.org/0000-0001-8857-011X; https://lattes.cnpq.br/5323068276181437
The increasing penetration of DG units, particularly photovoltaic systems, has transformed the operation and planning of distribution networks, opening opportunities for these resources to provide complementary functions such as reactive power support, voltage regulation, and active power reserve for frequency control. This dissertation thesis investigates the provision of ancillary services (AS) through distributed generation (DG) in electric power distribution systems, emphasizing the technical, economic, and regulatory aspects that determine the feasibility of this application. To assess this potential, a market-based dispatch methodology was developed and implemented in the optimization environment AMPL, considering operational constraints and compliance with voltage quality standards established in Module 8 of the Brazilian Distribution Procedures. The methodology was applied to the IEEE 37-bus test feeder in a 24-hour simulation, optimizing the active and reactive dispatch of DG units. The technical results highlight improvements in voltage profiles, mitigation of violations beyond the Permitted Deviation Range and Critical Deviation Range, and reduction of power losses. From an economic perspective, the model demonstrates significant benefits for distribution utilities, including a 41% reduction in system operating costs and a 93.5% decrease in regulatory penalty expenses related to non-compliance with service quality limits. Additionally, the study incorporates a competitive market remuneration structure, analyzing how such a mechanism can incentivize DG participation based on actual operational costs. The findings suggest that DG-based AS provision is both technically feasible and economically advantageous, enhancing system robustness, encouraging efficiency, and improving regulatory performance indicators of continuity and power quality. These results reinforce the relevance of integrating DG into ancillary service frameworks as a strategic approach to modernize distribution systems, align with regulatory requirements, and promote a more resilient and sustainable electricity sector