http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/4301 Thu, 30 Jul 2026 04:37:11 GMT 2026-07-30T04:37:11Z http://tede2.ufrpe.br:8080/tede/retrieve/13113/sfsede.png http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/4301 http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9860 Título: Representações da abolição e do pós-abolição da escravidão nos livros didáticos de história do Ceará (2008-2016) Autor: AMORIM, Gusmão Freitas Primeiro orientador: MIRANDA, Humberto da Silva Abstract: This dissertation analyzes representations of the Abolition of Slavery and the Post-Abolition period in the state of Ceará, as presented in Regional History textbooks intended for 4th- and 5th-grade elementary school students, published between 2008 and 2016. The study seeks to understand how the historical event of Abolition—one of the most celebrated themes in collective memory and local historiography—is portrayed within didactic historiography. It is based on the hypothesis that, despite significant historiographical shifts and advances in educational legislation—such as Laws No. 10,639/2003 and 11,645/2008, which made the teaching of Afro-Brazilian history and culture mandatory in basic education—and the influence of the movement known as the “new history of Ceará” (Souza, 2015), textbooks continue to sustain a traditional, romanticized, and heroic narrative of the acclaimed “Cearense pioneering spirit.” As a result, they fail to offer a more in-depth analysis of the lived experiences of enslaved individuals and the complexities of the post-abolition period. The research corpus consists of five Ceará history textbooks published between 2008 and 2016, most of which were evaluated and approved by Brazil’s National Textbook Program (PNLD, 2008; 2013). Content analysis, as formulated by Laurence Bardin (2016), is employed to examine textual representations of events and historical actors that shape the didactic narratives, as well as the pedagogical activities proposed. The study is initially grounded in the reflections of Alain Choppin (2004) and Circe Bittencourt (2018a), who conceive textbooks as cultural objects that disseminate specific values; in Ana Zavala’s (2014) discussions on the transformation of historiographical texts into didactic content and the connections between academic and school historiography; and in Roger Chartier’s (2002a; 2002b) concept of “representation,” which serves as an analytical framework for examining how narratives surrounding abolition and post-abolition are constructed and endowed with meaning in the analyzed textbooks. The findings indicate that the didactic historiography under examination incorporates more critical reflections on the process of abolition, including productive dialogue with more recent legislation. However, it still lacks analytical depth, particularly with regard to the treatment of enslaved individuals and their descendants as historical subjects (Trouillot, 2016). Ultimately, this dissertation aims to contribute to the development of an antiracist historical education in Brazil by challenging monocultural and Eurocentric curricula and promoting empathy and tolerance through critical analysis of how the history of slavery and its abolition is represented in textbooks. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Tese Tue, 10 Mar 2026 00:00:00 GMT http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9860 2026-03-10T00:00:00Z http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9859 Título: História do Museu de Ciências Naturais do Parque Estadual de Dois Irmãos : uma análise da coleção e representação da natureza musealizada Autor: XAVIER, Victor Cesar Silva Primeiro orientador: BORGES, Caroline Abstract: In this dissertation, we propose to understand, through the Natural Science Museum of the Dois Irmãos State Park (MCNPEDI), the idea of nature historically and culturally produced by the institution, grounded in the analysis of the museum's collection. Thus, this research also investigates the representation of nature through "musealized" nature. Additionally, through the collection of sources, this study examines the trajectory of the institution. As a theoretical framework, we draw on the works of Mutschler (2008), Worster (1988), Pádua (2010), Souza (2019), Passmore (1995), Daston and Galison (2007) to understand what nature is and how it can be represented. We also address the relationship between the museum and the State from the perspective of Bourdieu (2014), Menezes (2002), and Bennett (1995). The concept of musealization is approached through Brulon (2019), Desvallées and Mairesse (2013), and musealization in the context of natural science museums with Landim and Soler (2017). We also discuss the concept of representation based on Chartier (1990). From a methodological point of view, this is a documentary, exploratory, and descriptive research with a qualitative approach, using inference, description, and interpretation procedures of the data collected through primary and oral sources. The investigation's findings confirmed that MCNPEDI went through three phases, each addressing the idea of nature in completely different ways. The first phase is characterized by a more self-taught narrative of nature, while the second phase adopts a more technical and scientific conception and representation of nature. In the last phase, the dismantling of the collection was observed. Finally, the investigation concludes that the relationship between the museum and the State is crucial for the survival of any institution, as the trajectory of MCNPEDI highlights the pursuit of this legitimization, and its absence ultimately led to the loss of its invaluable collection. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Dissertação Fri, 30 Aug 2024 00:00:00 GMT http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9859 2024-08-30T00:00:00Z http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9857 Título: Formulação e efeito do tratamento de uma nanoemulsão de óleo de milho rico em canabidiol sobre o comportamento e parâmetros testiculares de ratos com autismo induzido por ácido valpróico Autor: SILVA, Mariana de França Oliveira da Primeiro orientador: SILVA JÚNIOR, Valdemiro Amaro da Abstract: Autism is a neurodevelopmental disorder mainly characterized by impaired communication, social, and cognitive development. Cannabidiol (CBD) is a lipophilic cannabinoid, which has pharmacological effects on the central nervous system that can bring benefits to autistic individuals since there is no standard drug treatment available. Nanoemulsions are delivery systems that increase the water solubility and bioavailability of lipophilic compounds such as cannabidiol. This study proposed the formulation of a corn oil nanoemulsion rich in cannabidiol, as well as evaluating the effect of this nanoemulsion on behavioral changes and testicular parameters in an animal model of autism induced by valproic acid (VPA). Nanoemulsions were developed with CBD oil at different concentrations (5, 10, and 20%) and the macroscopic and physicochemical characteristics were evaluated. The formulations were stable after thermal stress and centrifugation, and showed a droplet size smaller than 200 nm, in addition to a reduced polydispersity index and zeta potential, characterizing their homogeneity. For the induction of autism, 10 female rats received 500 mg/kg of VPA diluted in saline solution or saline solution alone intraperitoneally during the prenatal period. Males born from females exposed to VPA constituted the VPA group (positive control), CBDON1 (treated with 10% oil nanoemulsion), and CBDON2 (treated with 10% oil nanoemulsion). Males born from females exposed to saline solution constituted the control group (negative). Five behavioral tests were performed in which anxiety, locomotor and exploratory activity, stereotypes, sociability index, and social preference index were evaluated. Animals exposed to VPA during the prenatal period showed an increase in anxiety and stereotypes, and a reduction in exploratory activity, sociability index and social preference index, behavioral alterations compatible with autism. The analysis of testicular morphometric alterations was performed based on the analysis of the morphometry of the seminiferous tubules, volumetric density, and volume of the tubular components, percentage and volume of the intertubule components, and stereological and morphometric parameters of the Leydig cells. Prenatal exposure to VPA generated an increase in testicular size, diameter, volume, and length of seminiferous tubules, lumen diameter, tubulosomatic index, somatic epithelial index, as well as increased volume of the nucleus, the cytoplasm of Leydig cells, and levels of the antioxidant enzymes superoxide dismutase (SOD) and glutathione (GST). On the other hand, exposure to VPA reduced the height and volumetric density of the epithelium, as well as decreased serum testosterone levels. Treatment with CBD nanoemulsions was effective in reversing behavioral changes compatible with autism, reducing neuronal death in the hippocampus, improving testicular parameters, and attenuating the reduction in testosterone levels generated by prenatal exposure to valproic acid. However, the formulations did not change SOD and GST levels, as the increase in enzyme activity may not have been necessary due to probable prevention against tissue damage generated by CBD. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Tese Thu, 13 Oct 2022 00:00:00 GMT http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9857 2022-10-13T00:00:00Z http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9856 Título: Análise topológica em imagens 3D de otólitos de peixes: explorando padrões de densidade e de morfologia Autor: SOUZA NETO, João Valério de Primeiro orientador: DUARTE NETO, Paulo José Abstract: In this thesis, we present a comparative study of otolith density variations using Topological Data Analysis (TDA). Otoliths are calcium carbonate structures found in the inner ears of fish and are commonly used to study age and growth patterns in fish populations. Traditionally, the analysis of otolith density variations has been a computationally intensive task due to the high-dimensional nature of the data. However, TDA offers a promising approach to reduce the data dimensionality and extract meaningful topological information from otolith images. We applied the Ball Mapper algorithm to a dataset of 3D otolith images from different fish species and ages. The algorithm allowed us to construct topological graphs representing the density variations in otoliths. We also explored the use of probabilistic sampling techniques to reduce the data and found that a sample size of 5% provided accurate representations of otolith density variations compared to the full dataset, after a Sample Topological Validation procedure developed here to ensure the efficiency and reliability of the sampling process. Topological invariants of the graphs, such as average clustering, node connectivity, assortativity, shortest path length, efficiency, and others, were used to comparizon between graphs. The comparizon of the topological properties of the full dataset with those of the 5% sample found a high degree of similarity, indicating that TDA with a reduced dataset can capture essential density information. Ball Mapper further allowed us to identify and eliminate dirt or anomalies present in otolith images, further enhancing the accuracy of our analysis. Overall, our study demonstrates the efficacy of TDA in studying otolith density variations with significant computational gains over traditional methods. The reduced data size using probabilistic sampling and the robustness of topological invariants provide valuable insights into the density patterns of otoliths. Another TDA technique, Persistent Homology (PH), was applied to the 3D image data with the expectation of unveiling a new classifier for otolith shape. PH demonstrated prominence even in a small sample by effectively separating otolith classes and revealing accurate quantitative separation results, showcasing potential use for otolith classification based on their 3D structure. Finally, a regression analysis demonstrated the possibility of estimating age, length, and radiodensity of otoliths based on the topological features resulting from the classification. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Tese Fri, 23 Feb 2024 00:00:00 GMT http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9856 2024-02-23T00:00:00Z