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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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Cultura soberana nacional e história da ideologia do colonialismo: Machado, Barreto, Graciliano, Julião e Ivan Angelo
(Edufes, 2025) Luis Eustáquio Soares
A obra de Luis Eustáquio Soares propõe uma investigação profunda sobre a ideologia do colonialismo como um elemento transversal à história e à cultura do Brasil. O autor analisa como essa ideologia evoluiu de um período colonial mercantilista para formas contemporâneas sob o domínio do imperialismo europeu e do ultraimperialismo norte-americano. Através da lente do realismo crítico e do materialismo histórico, Soares examina as obras de grandes nomes da literatura brasileira — Machado de Assis, Lima Barreto, Graciliano Ramos, Francisco Julião e Ivan Ângelo — para demonstrar como estas narrativas funcionam como instrumentos de resistência e perspectivas de soberania nacional. O livro discute como a literatura pode descortinar o estatuto colonizado e apontar caminhos para a emancipação integral da "Maioria Global" (os povos do Sul Global) frente às estruturas de opressão do sistema capitalista mundial.
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Síntese do biodiesel de óleo de soja utilizando óxido de cálcio oriundo da concha de sururu impregnado com íon itérbio (3+)
(Universidade Federal do Espírito Santo, 2024-07-25) Gomes, Mirian Alves; Guimarães, Damaris; https://orcid.org/0000-0002-4932-3252; http://lattes.cnpq.br/6576377621734943; Barañano, Audrei Giménez; https://orcid.org/0000-0002-0174-5202; http://lattes.cnpq.br/6155024776819193; https://orcid.org/0009-0004-4358-8673; http://lattes.cnpq.br/7254607078386975
; Altoé, Mario Alberto Simonato; https://orcid.org/0009-0004-6226-7912; http://lattes.cnpq.br/8481776828705621
; Souza, Murilo de Oliveira; https://orcid.org/0000-0002-5299-564X; http://lattes.cnpq.br/1832643912229312
The synthesis of biodiesel is carried out through transesterification reaction, using vegetable oils or animal fats, short-chain alcohols, in the presence of basic/acid catalysts, whether heterogeneous or homogeneous. Among heterogeneous catalysts, calcium oxide (CaO) shows promising results. In this study, calcium oxide obtained from sururu shell was impregnated with Yb3+ ions, via coprecipitation method. The catalysts were thermally activated by calcination at 900°C for 4 hours and evaluated for their catalytic potential in methyl biodiesel synthesis using soybean oil. Thermogravimetric analysis (TGA), X-ray diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) were conducted to obtain catalyst characteristics and properties. Biodiesel yield was determined by proton nuclear magnetic resonance (1H NMR) and thin-layer chromatography (TLC). Central composite rotational design (CCRD) was employed to optimize reaction conditions. Results revealed that maximum efficiency was achieved at 80°C, with 5% catalyst and alcohol:oil ratio of 15:1, resulting in 87% conversion for CaO without Yb3+ and 85% for CaO with Yb3+, within just 1 hour. Modified CaO allowed for five cycles of biodiesel synthesis, with a 2.78% reduction in yield in the first catalytic cycle. Conversely, CaO without Yb3+ showed a significantly greater yield reduction, totaling 30.48%. The feasibility of reuse across multiple cycles was attributed to the robustness promoted by oxide impregnation, due to the low solubility of calcium oxide.
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Modelagem e predição de propriedades mecânicas e físicas de fibras lignocelulósicas por FTIR via regressão multivariada
(Universidade Federal do Espírito Santo, 2025-08-27) Lauriano, Laiza Andrade; Oliveira, Michel Picanço; https://orcid.org/0000-0001-9241-0194; http://lattes.cnpq.br/6383844066460475; Dutra, Júlio Cesar Sampaio; https://orcid.org/0000-0001-6784-4150; http://lattes.cnpq.br/5331990513570911; https://orcid.org/0009-0008-3199-7380; http://lattes.cnpq.br/4891425138936984; Carreira, Lilian Gasparelli; https://orcid.org/0000-0003-2415-6299; http://lattes.cnpq.br/8151437321864971; Profeti, Luciene Paula Roberto; https://orcid.org/0000-0001-6280-2410; http://lattes.cnpq.br/6517975282316378; Dias, Ana Carolina Spindola Rangel; http://lattes.cnpq.br/2866902801584203
In the face of contemporary challenges, the pursuit of sustainable materials that minimize environmental impact is essential. In this context, this study evaluated the use of lignocel lulosic fibers in composites as an alternative to synthetic materials. Lignocellulosic fibers are notable for their advantageous characteristics, such as biodegradability, low cost, and competitive mechanical performance in specific applications, such as the reinforcement of polymer composites used in automobiles and civil construction. However, determining the mechanical and physical properties of lignocellulosic fibers remains a challenge, primarily due to their microscopic dimensions, heterogeneity, and the complexity of experimental testing. Despite these difficulties, detailed knowledge of these properties is fundamental for the efficient selection and application of fibers in polymer composites. Given this scenario, this dissertation proposes the development of Principal Component Regression (PCR) and Partial Least Squares (PLS) mathematical models to predict physical and mechanical properties from spectral data obtained by Fourier-Transform Infrared (FTIR) Spectroscopy, thereby optimizing the characterization process. The models showed satisfactory performance in explaining the variability of data for diameter, density, and tensile strength, with PLS showing the best results for diameter (R2 = 0,766 e Q2 = 0,811) and density (R2 = 0,874 e Q2 = 0,877), and PCR for tensile strength (R2 = 0,721 e Q2 = 0,722). The results highlight the potential of chemometrics as an auxiliary tool for the selection and application of lignocellulosic fibers in sustainable composites.
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A midiatização das vacinas durante a pandemia de Covid-19 nas unidades jornalísticas veiculadas no Espírito Santo
(Universidade Federal do Espírito Santo, 2025-11-25) Scalfoni, Carolina Jann; Santos Neto, Edson Theodoro dos ; https://orcid.org/0000-0002-7351-7719; http://lattes.cnpq.br/5430137427291413; https://orcid.org/0009-0004-9527-2742; http://lattes.cnpq.br/3409133190021956; Carvalho, Clarissa Sousa de ; https://orcid.org/; http://lattes.cnpq.br/8142864530592760; Henriques, Rafael da Silva Paes; https://orcid.org/0000-0002-1812-5886; http://lattes.cnpq.br/4260742302003843; Ramos, Mariela Pitanga; https://orcid.org/0000-0002-2918-3010; http://lattes.cnpq.br/1593636885635918; Primo, Paola Pinheiro Bernardi; https://orcid.org/0000-0002-6954-1046; http://lattes.cnpq.br/5776565227091589
The COVID-19 pandemic was marked by the rapid spread of the SARS-CoV-2 virus and the swift development of vaccines. This period was accompanied by an infodemic of inaccurate or false information, which harmed the quality of health communication and was related to an increase in vaccine hesitancy. Given this scenario, the objective of this study was to analyze the media information about vaccines disseminated in 21 newspapers in the state of Espírito Santo during the pandemic. This is a quantitative and qualitative, exploratory documentary research, analyzing journalistic articles from 21 electronic media outlets in Espírito Santo. The analyzed period extended from December 29, 2019, to May 6, 2023, the date of the end of the pandemic. The research used Bardin's content analysis and Bruno Latour's Actor-Network Theory (ANT) as references for the qualitative article. The results of the analyses demonstrated a positive correlation between the publication of articles and the application of vaccines (rho = 0.407, p-value < 0.0005). The vaccination data revealed low adherence to the booster dose by the population, with inequality among the state's cities. The analysis of strategies to combat vaccine hesitancy was carried out in the second article; the appearance of influential figures within the journalistic writings was the most found, in addition to records with social mobilization and the use of specific social networks. The research presented the performance of the strategies in the relevant role as non human actors, influencing behaviors and perceptions about vaccination. It was concluded that the journalistic media in Espírito Santo fulfilled its role of disclosing information about vaccines, with coverage and dose application being positively correlated. However, the dissertation reveals the need for more regionalized health strategies to increase the low adherence to the booster dose, especially in rural cities. The analysis using ANT confirmed the influence of actors, especially politicians and specialists, especially in information networks, but also pointed out the need for greater diversification, including social movements and religious leaders, to reach more layers of the population, respecting the principles of the Brazilian Health System (SUS). Furthermore, the low quality and incompleteness of the data in government dashboards limited the analysis of the profile of the vaccinated population
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Vacinação primária e de reforço contra Covid-19 na doença de Sjögren
(Universidade Federal do Espírito Santo, 2025-08-01) Lirio, Maressa Barbosa Beloni; Machado, Ketty Lysie Libardi Lira ; https://orcid.org/0000-0003-2545-6795; http://lattes.cnpq.br/5557072286373305; Cristo, Valéria Valim ; https://orcid.org/0000-0002-0625-1308; http://lattes.cnpq.br/3210373469770019; https://orcid.org/0000-0002-2096-7214; http://lattes.cnpq.br/2403559399071209; Calderaro, Débora Cerqueira ; https://orcid.org/0000-0001-5535-3223; http://lattes.cnpq.br/7829833805354605; Motta, Tania Queiroz Reuter ; https://orcid.org/0000-0003-2176-5603; http://lattes.cnpq.br/1608555024268552
; Pasoto, Sandra Gofinet ; https://orcid.org/0000-0002-7343-6804; http://lattes.cnpq.br/2825364157697922
Introduction: Sjögren’s Syndrome (SSj) is a systemic autoimmune disease characterized by glandular and extraglandular involvement. Patients with SSj, particularly those on immunosuppressive therapy, may exhibit a reduced immune response to vaccination. The COVID-19 pandemic has posed challenges to protecting this population, highlighting the importance of effective and safe vaccination strategies. Objective: To evaluate the immunogenicity and safety of COVID-19 vaccines in patients with SSj, in a prospective cohort. Methods: This observational, longitudinal, prospective study was part of the SAFER cohort and included 51 patients with primary SSj, classified according to the 2016 ACR/EULAR criteria. Immunogenicity was assessed by anti-Spike IgG (IgG-S) levels, expressed as geometric mean titers (GMT) and fold increase in GMT (FI-GMT). Disease activity was measured by the ESSDAI score. Adverse events and COVID-19 infections were also monitored. Evaluations were conducted at four timepoints: before the first dose (T1), before the second dose (T2), before the third dose (T3), and four weeks after the booster (T4). Participants received primary vaccination with AstraZeneca (AZT) or CoronaVac (VAC), and either a homologous booster (AZT) or heterologous booster (BNT162b2 - BNT). Results: The cohort included 51 participants, with a mean age of 46 years; 90% (n = 46) were women. Comorbidities were present in 41% (n = 21), and 27% (n = 14) had high-level immunosuppression. Medications used included immunosuppressive drugs (18%, n = 9), corticosteroids (5.9%, n = 5), DMARDs (20%, n = 10), and hydroxychloroquine (65%, n = 33); 16% (n = 8) were not taking any medication. At baseline, 11% (n = 4/35) had moderate/high disease activity, decreasing to 6.5% (n = 2/35) at T4. Regarding the primary vaccine scheme, 94% (n = 48) received AZT and 5.9% (n = 3) received VAC. Heterologous schemes were used in 73% (n = 37), and homologous in 27% (n = 14), with BNT used as the booster in heterologous schedules. Post-booster COVID-19 infection occurred in 20% (n = 10). Nearly all participants achieved seroconversion (~100%), except those using biologics, who had rates below 80%. IgG-S titers showed progressive increases across timepoints. Both primary vaccines elicited similar humoral responses. However, BNT boosters led to significantly higher GMTs (2148.03) compared to AZT (324.29) (p < 0.001); the immune response fold increase was 6 times higher with BNT (5.98 [2.97 – 12.03], p = 0.001). Seroconversion frequency was 83% for homologous and 100% for heterologous regimens. Adverse events were mild and without statistical significance. In multivariate analysis, BNT booster remained an independent predictor of higher antibody titers. Conclusion: COVID-19 vaccination was safe and effective in patients with SSj, with high antibody titers and seropositivity rates. Heterologous vaccination showed superior immunogenicity compared to homologous regimens, without triggering disease activity