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Item type: Item , Exploring nutritional and bioactive properties of Maranta arundinacea L.: An unconventional food plant(2025-07) Oliveira, Yasmine Fernandes; Lima Junior, Rodolfo Dantas; Simão, Jorge Luiz Souza; Dias, Tiago; Ferreira, Tânia Aparecida Pinto de Castro; Cruz, Maurício Vicente; Fernandes, Kátia Flávia; Sperança, Marco Aurélio; Pereira, Fabiola Manhas Verbi; Pereira Filho, Edenir Rodrigues; Mesquita, Nyuara Araújo da SilvaUnconventional Food Plants offer significant dietary and economic potential due to their rich nutritional and mineral content. Maranta arundinacea stands out for its food potential and use in the pharmaceutical field. This study aimed to analyse the nutritional, chemical and bioactive properties composition of the aerial and rhizomatic parts of M. arundinacea, highlighting their potential applications. The nutritional analysis revealed that protein and fibre content in the aerial parts (13.37 %) was significantly higher compared to the rhizomatic parts (5.12 %). Among the compounds identified through the Global Natural Product Social Molecular Networking (GNPS), rutin, quercetin, and kaempferol derivatives were the most prominent. These compounds are well known for their antioxidant properties, demonstrated against ABTS+, DPPH, and FRAP assays, which contribute to the overall health benefits of M. arundinacea. Collectively, these findings underscore the value of M. arundinacea as a valuable source of both nutritional and pharmacological benefits, supporting its long-term use as a valuable food, dietary supplement, and medicinal resource.Item type: Item , Uma análise sobre o bullying e as escolas militares(Universidade Federal de Goiás, 2024-08-05) Paula, Maria Clara Florêncio de; Martins, Lucinéia Scremin; Martins, Lucinéia Scremin; Benevides, Rubens de FreitasThe focus of the research was, therefore, to analyze the main types and manifestations of bullying observed in the school context, identifying the main consequences of bullying for victims, aiming to understand the different ways in which this problem manifests itself. In addition, also presenting some experiences about bullying, experienced in a military management school. This is one of the reasons why I dedicated myself to studying this topic, stimulated by a traumatic experience that still impacts my life. I was a student at a military school and faced both bullying and harassment. The pain of the past became a source of inspiration to constantly seek personal growth and theoretically understand this phenomenon. By sharing a little of my story, I realize the importance of communicating these experiences in the light of sociological studies so that friends and family can also better understand and offer support in the ongoing healing process. Bullying is an extremely important issue in today's society, especially due to its presence in schools, on social networks and in youth and adolescent groups. These are aggressive and repetitive behaviors, without justification, that can cause pain, anguish and suffering to those who suffer from itItem type: Item , Os impactos do conflito russo-ucraniano nas políticas de transição energética da União Europeia(Universidade Federal de Goiás, 2024-07-16) Ramos, Mateus Rodrigues; Thomaz, Laís Forti; Pfrimer, Matheus Hoffmann; Pfrimer, Matheus Hoffmann; Patti, Carlo; Castilho, DenisThis paper investigates the impacts of the Ukraine War on the European Union's energy policies, with an emphasis on the transition to renewable energies as an alternative to enhance energy security. The research, structured in three sections and using a predominantly qualitative methodology, complemented by quantitative data, focuses on the European Union case study in the context of the 2022 Russia-Ukraine conflict and the launch of the REPowerEU Plan. Initially, theoretical concepts of energy, energy transition, and energy security are presented, along with contextualization of these concepts in the conflict scenario and their impacts on the EU's energy transition. Next, the energy relationship between the EU and Russia before the conflict is explored, highlighting energy dependency and policies on both sides. Finally, the impact of the Russia-Ukraine conflict on the energy and natural gas market is analyzed, as well as the EU's response through the REPowerEU Plan, which aims to reduce dependence on fossil fuels and promote the transition to clean energies. The research concludes that the consequences of the Russia-Ukraine conflict accelerate the discussion on energy transition in Europe but present significant challenges, indicating that the transition may not guarantee complete energy securityItem type: Item , Avaliação da durabilidade de compósitos cimentícios reforçados com nanotubos de carbono: uma revisão sistemática da literaturado conhecimento contemporâneo(2026) Martins, Bárbara Gomes; Oliveira, Andrielli Morais de; Cascudo, OswaldoReinforcing cementitious matrices with multi-walled carbon nanotubes (MWCNTs) can enable crack control at the nanoscale, contributing to the durability and strength of these composites. A key challenge associated with these composites is the difficulty in dispersing MWCNTs and the low interfacial interaction between the fiber and the matrix. This study conducted a Systematic Literature Review (SLR) to identify the main MWCNT contents and dispersion techniques, correlating them with durability parameters in environmental conditions that degrade cementitious matrices, such as CO2, chlorides, acids, and sulfates. A search string was applied to international databases between 2020 and 2024, resulting in 18articles. The results showed that MWCNTs improve the mechanical properties and microstructure of the composites, in addition to reducing the values of chloride ion migration coefficients and CO2diffusion. This was attributed to mechanisms such as nucleation points (formation of cement hydration products), stress transfer bridges in microcracks, and matrix densification. Although MWCNTs have demonstrated potential in enhancing the durability of cementitious composites, the diversity of methodologies and exposure conditions calls for further studies to achieve greater consensus in the results.Item type: Item , Cinzas de lodo de esgoto em concretos ecoeficientes: uma revisão da literatura para produção de adição mineral - temperatura de calcinação e a sua relação com a pozolanicidade - pesquisas de 2014 a 2024(2025) Rocha, Marielle Vieira Felix; Pontes, Juliana Nobre Ribeiro; Oliveira, Andrielli Morais de; Cascudo, Oswaldo; Pontes, Juliana Nobre RibeiroSewage sludge produced annually worldwide exceeds 30 million tons and the inci-eration process has become the most appropriate way to manage this waste. This incinerationis capable of reducing up to 90% of the sludge volume, leaving 10% of residual ash that can beused as a partial replacement for Portland cement in concrete, contributing to the reduction of CO2emissions. This work aims to synthesize technical knowledge in the Brazilian and inter-national context, through a literature review, regarding research on sewage sludge ash in termsof the best temperatures for its calcination and production of mineral admixture, analyzing itspozzolanicity, particle diameters, and the percentages most commonly used in concretes andmortars as a substitute for Portland cement.A time frame was defined between the years 2014and 2024 for national and international papers and the following databases were used: CAPEScatalog of theses and dissertations, UFG periodicals portal, Integrated search portal of USP,CAPES periodicals portal, Brazilian Digital Library of Theses and Dissertations and Sciencedirect platform. The results showed that sewage sludge ash (SSA) is promising as a pozzolanicmaterial, due to the presence of amorphous silica and alumina. These compounds increased thereactivity of the cement paste and positively influenced the hydration kinetics, thus improvingthe mechanical properties and durability of the concrete and mortars. It is concluded that theoptimized use of sewage sludge ash can contribute to the production of eco-efficient concretesand mortars. The SSA appears promising as an interesting and beneficial alternative for theconstruction sector and for the accumulation of solid waste in cities.