This study aimed to analyze the state of the art of research on leadership in Brazilian police organizations in order to assess the alignment between national production and international trends. To this end, an integrative literature review was conducted, with searches performed in the SciELO, Scopus, and EBSCOhost databases, as well as relevant scientific journals. The final sample comprised ten articles published between 2013 and 2025, most of which were empirical in nature and focused on the Military Police. The results indicate that Brazilian scientific production on police leadership remains recent, fragmented, and with limited international visibility. Among the findings, particular emphasis was placed on trust and group cohesion within special operations units, as well as the importance of relational leadership and emotional competencies in highly complex contexts. Contributions were also identified regarding institutional mediation with society and female leadership. However, significant gaps were observed, such as the absence of studies in other police organizations, the lack of consolidated theoretical models, and the scarcity of research on the impact of digital technologies, including artificial intelligence, on leadership processes. The findings suggest the need to deepen the dialogue between national production and international frameworks, without losing sight of the cultural and organizational specificities of the Brazilian context. It is concluded that strengthening applied research on leadership in police contexts can support more ethical, effective, and context-sensitive institutional practices.

This study aims to deeply analyze the complex processes of sociocultural and territorial transformation that have marked the recent history of the Caiçara communities, predominantly located on the Brazilian southeast coast. The Caiçara identity, a product of a rich ethno-cultural blend of Indigenous peoples, Portuguese settlers, and Africans, was consolidated in a traditional way of life intrinsically connected to the marine and terrestrial environment, based on artisan fishing, extractivism, and, crucially, shifting cultivation (roçado) and the manioc flour complex. This strong relationship with the territory is evident in the importance of backyard gardens (quintais) for food security and the maintenance of biodiversity.

This paper explores the intersection of assisted reproduction and succession law in Brazil, highlighting the legal uncertainties that arise from posthumous conception, artificial insemination, and late recognition of paternity. Through constitutional provisions, civil code statutes, and ethical regulations, it analyzes the challenges faced by courts in determining inheritance rights. A hypothetical case illustrates practical implications, demonstrating gaps that necessitate comprehensive legislative reform to ensure legal certainty and protection of individual rights.

In years of research, Guillain-Barré Syndrome has been associated with to multiple antecedent illness, mostly respiratory infections. In years of study's it has been discovered the probable connection between GBS and different microorganisms, such as Zika virus and coronavirus [1]. Understanding this mechanism can be crucial to investigate therapeutic options, and even prevent worse prognosis. But because people with GBS can show very different symptoms, and we don't yet have clear proof of exactly how the virus might cause the syndrome, it's important to be cautious when interpreting the connection. Figuring out whether the virus truly causes GBS or if it's just happening by chance is really important. This helps health ofQicials make better plans, doctors make smarter treatment choices, and researchers know where to focus their efforts next.

This article analyzes the phenomenon of SDG-Washing in the mining sector in Minas Gerais, contrasting the discourse of alignment with the UN Sustainable Development Goals (SDGs) with the persistent fragility of environmental governance and socio-environmental disasters. It argues that, despite specific sectoral advances in areas such as inclusion (SDG 5) and the circular economy (SDG 12), the systemic failure of the State and companies to mitigate catastrophic risks and protect territorial rights (SDG 16) disqualifies alignment as full development, configuring it as SDG-Washing. The cases of Mariana and Brumadinho are presented as evidence of regulatory collapse, where the flexibilization of licensing and violence against traditional communities nullify the rhetoric of sustainability.

Angiostrongyliasis is caused by nematodes from the genus Angiostrongylus. Angiostrongylus cantonensis, Angiostrongylus costaricensis and Angiostrongylus vasorum are the species that represent the most risk in the Brazilian territory, spreading throughout the country through its hosts, causing different diseases that can be lethal to humans and animals. The giant African snail, Achatina fulica, was brought to Brazil as an alternative to escargot, however, the attempt to popularize the production of this species was a failure, leading to the release of the snails and invasion of our natural fauna and flora. Achatina fulica easily adapted itself to the rural and urban areas and its spread was unavoidable. With this new species being part of the Brazilian ecology, a new perfect host was implemented in the life cycle of Angiostrongylus spp. and the consequence of this relationship is the emergence of Angiostrongyliasis. A variety of prevention and control methods were invoked over the years to protect the public from contamination, but to this day, there is not a fully effective and practical way to eradicate these species or diagnose this disease. Therefore, this literature review seeks to accentuate a comprehensive interdisciplinary approach to public education, while simultaneously emphasizing the necessity of professionals in the healthcare and environmental sectors to acquire a more profound understanding of this topic.

The generation of hazardous chemical waste in Higher Education Institutions (HEIs) presents significant environmental and institutional challenges. Despite the existence of general environmental legislation in Brazil, there is no specific regulatory framework for chemical waste generated in educational and research settings. This gap has resulted in a fragmented landscape, where public universities often present varying degrees of implementation of chemical waste management plans, while private institutions typically lack transparency or accessible documentation. This study aimed to highlight the absence and proposal of a unified national commitment to chemical waste governance across Brazilian HEIs. Using a document analysis methodology, the research examined chemical waste management manuals and policies from leading public and private universities, alongside relevant national and international literature. The results revealed substantial inconsistencies in policy depth, public visibility, and institutional engagement. The discussion drew on national and international references to propose a structured, multi-level solution based on the formation of a national coordinating body, mandatory institutional committees, standardized practices, and integrated environmental education. This approach seeked to align Brazil's academic practices with international standards, improve regulatory compliance, and promote a culture of environmental responsibility within the academic sector.

This paper delves into the use of graphene-based materials, particularly graphene oxide (GO), as a low-temperature passivation medium for crystalline silicon (c-Si) solar cells. GO's negatively charged functional groups effectively lower the surface recombination velocity (SRV) by creating a pronounced field-effect passivation, while also providing partial chemical passivation of silicon's dangling bonds. In comparison to conventional passivation schemes such as thermal SiO2 or Al2O3, graphene-based coatings allow simpler, solution-based deposition near ambient conditions. Here, we discuss the core passivation mechanisms of graphene materials, survey various deposition methods, and benchmark their performance versus standard approaches. Although GO passivation frequently boosts carrier lifetimes and open-circuit voltage (Voc), it still faces constraints in moisture and temperature stability. Even so, current progress in encapsulation, doping, and industrial-scale processes suggests that GO could emerge as an economical solution for high-efficiency c-Si photovoltaics.

The world education scenario is changing in many aspects, including the capacity to keep the students engaged and achieving knowledge through working in class. The teachers are struggling to keep a quality in teaching among so many different educational environments and new perspectives. Approaches like Project-based learning (PBL) and Science, Technology, Engineering, Arts, and Mathematics (S.T.E.A.M.) are being used to solve the problem of lack of motivation and student's engagement while in a school days and time. Strategies to teach, to catch attention, and develop ideas with this life in the 21 st-century. Activated learning is in the education scenario to make the difference in students' lifetime. It's about how far they can go thinking critically and having an educational environment that provides them a world of possibilities. The focus on diversity experience in authentic learning in the PBL and STEAM approaches not only increases motivation and the classroom dynamic but elevates active learning to a high level in a collaborative environment for this 21 st-century life experiences through technology and trying organic relationships. Greenlight for girls (g4g), in Belgium, The Butterfly Atelier and Fernando Félix Municipal School, in Ouro Branco, Brazil, were the places where these actions and approaches could be well done. The goals are expanding and provide these environments for more children, from private and public education.

Tissue engineering is a revolutionary field that aims to restore or replace damaged tissues and organs through the development of living substitutes using biodegradable materials. Among its applications, vascular engineering is particularly promising, yet challenging, due to the complexity of replicating the unique composition and function of blood vessels. Recent advancements in three-dimensional (3D) bioprinting and the integration of extracellular matrix (ECM) components into bioinks have emerged as key solutions to address this challenge. This review highlights the role of ECM as a scaffold material that mimics the natural cellular environment, promoting cell adhesion, differentiation, and the formation of vascular networks. Various studies have demonstrated how ECM-based bioinks, derived from brain, cardiac, and vascular tissues, enable the fabrication of perfusable structures and the creation of personalized, vascularized scaffolds. Innovative approaches, such as multimaterial bioprinting, have allowed for the development of complex, multilayered vascular constructs with enhanced mechanical stability and bioactivity. However, significant challenges remain, including maintaining the bioactive properties of ECM during processing and scaling these structures for clinical applications. By synthesizing insights from recent research, this review provides a comprehensive overview of the methodologies, benefits, limitations, and future perspectives of ECM-based bioinks in bioprinting vascularized tissues. These advancements not only pave the way for personalized regenerative therapies but also hold potential for applications in pharmacological studies and organ transplantation.

The advancement of Artificial Intelligence (AI) has raised crucial questions about how robots can become morally autonomous agents capable of making ethical decisions without human supervision. This study investigates the technical and ethical challenges inherent in this process by exploring various philosophical approaches and their applications to robot ethics. Through a comprehensive literature review, we aim to understand how robots can develop their own moral principles and handle ethical dilemmas. We analyze different moral theories and evaluate their integration into AI systems, considering issues such as causality, situational relevance, and moral reasoning in unprecedented scenarios. The project also reflects on real-world implications by examining ethical challenges faced by autonomous vehicles and other AI applications. The study is supported by a set of six key academic sources and further enriched by practical discussions with the State General Comptroller\'s Office (CGE), providing both theoretical depth and applied insight into robotic morality.

The rapid expansion of short-term rental platforms, such as Airbnb, has significantly impacted urban housing markets and intensified the phenomenon of overtourism in major European cities. This paper investigates how institutional quality and regulatory frameworks influence the ability of local governments to manage these challenges. Focusing on the disruption of the housing market, the core problem addressed is the growing tension between the economic benefits generated by short-term rentals-while briefly noting other affected areas-it examines the tension between the economic gains of short term-rentals and their negative externalities, such as housing shortages, rising rental prices and community displacement. The research adopts a qualitative approach, combining a critical literature review with comparative case study analysis from various european cities including Barcelona, Paris, Berlin, and Lisbon. These cities exemplify both the complexity and variety of regulatory responses to overtourism and housing market disruptions. The study identifies that strong government institutions plays a pivotal role in shaping the effectiveness of policy interventions. Cities with robust regulations, clear zoning laws, and coordinated governance are more successful in mitigating the housing impacts of Airbnb and preserving residential stability. In contrast, cities with fragmented institutions, weak enforcement mechanisms and deep depenedency on tourism, struggle to control platform activity and face growing social discontent. The paper argues for adaptive and inclusive governance models that balance economic interests with social equity. The conclusion emphasizes the need for multi-level cooperation, improved enforcement capabilities, and policy innovation to ensure that tourism-driven economic growth does not come at the expense of urban livability and affordability.

The rapid rise of Artificial Intelligence (AI) has changed social structures in various ways, including how intellectual property is perceived. Until recently, the human spirit and mind were always regarded as the origin of creativity, with creations and artistic expressions emerging from their subjectivity. However, with the development of machine and deep learning, AI is now capable of generating creative outputs-books, music, movies, and even scientific discoveries. As technology evolves, new challenges for legal systems appear. Hence, the main question arises: can AI be considered an author? This paper provides an exploration of philosophical and legal underpinnings of authorship, specifically within the Brazilian legal framework and also how courts around the world are addressing this challenge. First, the article explores how generative AI works and the reasons for its growth. Then, it will analyze the legal possibility of recognizing AI as an author, and its consequences. Furthermore, it investigates global court cases, where AI-generated creations have been adjudicated in response to copyright claims. Through a broad search of philosophical theories, Brazilian law, and international case law, this article provides a critical explanation of how intellectual property frameworks might evolve in response to AI's growing role in creative processes.

As vehicles become increasingly connected to external systems, cybersecurity threats have become a growing concern. The most widely used in-vehicle communication protocol, Controller Area Network (CAN), is known to lack built-in defense mechanisms against cyberattacks by standards. In parallel, the demand for high-bandwidth applications, such as the transmission of high-quality images required for autonomous driving, has led to the adoption of alternative protocols like Automotive Ethernet (AE). Today, both CAN and AE can be found coexisting within the same vehicle network, yet the need for robust cybersecurity remains critical. To address this issue, many researchers have proposed Intrusion Detection Systems (IDSs), many based on machine learning, as a means to detect and mitigate external attacks. However, a review of the literature reveals that many IDSs are trained and validated using very similar sets of attacks. This paper presents a literature review focused on identifying the most commonly referenced cyberattacks in IDS-related research targeting both CAN and AE networks. It highlights the potential impact of these attacks on vehicle systems, outlines how such attacks can be executed, and examines how frequently each type of attack is addressed in existing IDS proposals.

The aerospace industry requires materials that are not only lightweight but also exhibit superior mechanical performance, durability, hydrophobicity, and resistance to solvents and environmental conditions. This study presents the development and characterization of silica aerogels synthesized via sol-gel processing and hybridized with epoxy and silicone resins. The primary goal was to optimize the physical and mechanical properties of these aerogels for aerospace use. The materials were produced using ambient pressure drying (APD), a safer and more cost-effective alternative to supercritical drying. Microstructural analysis revealed a transition from open-pore to closed-pore architectures due to resin doping, resulting in significantly improved mechanical strength. The hybrid aerogels exhibited densities between 0.20 and 0.35 g/cm³, compressive strengths of approximately 620 kPa, and excellent hydrophobicity. These results demonstrate the suitability of such materials for aerospace applications, particularly in drone structures, offering competitive advantages in weight reduction and volume efficiency.