Brazilian Landscape Research Articles

Mapping the Knowledge Management Education and Professional Landscape in Brazil

Abstract: The article shows how the knowledge management area has developed in Brazil, in terms of academic and scientific foundations as well as organizational support and collaboration networks in the extra-academic context. In this way, it documents the existence of a corpus of reference sources already available for those interested in the subject as well as a deepening the understanding of knowledge management at the master’s and doctoral program levels.

Presence of Microplastics in Workers of Apis mellifera (Linnaeus, 1758) in Different Landscapes in Brazil

Presence of Microplastics in Workers of Apis mellifera (Linnaeus, 1758) in Different Landscapes in Brazil

Devorar la naturaleza: biomorfismo y transformación en la obra de Tarsila do Amaral

Tarsila do Amaral’s paintings of rural Brazilian landscapes present a natural world replete with vibrant colors, whimsical creatures, and luxuriant plant life. By co-opting aspects of surrealism’s visual lexicon, particularly biomorphism, Amaral created timeless myths that in their strangeness and indecipherability conveyed the uncertainly of the moment. When she exhibited these paintings in Paris in 1928, Amaral’s adoption of surrealist notions of transformation, ambiguity and uncertainly was on full display. Her landscapes of this period present dichotomies between the rational and the irrational, the natural and the artificial, order and chaos, thereby challenging Parisians’ imagined construct of Brazil, and creating an original and enigmatic interpretation of the natural world.

Philosophical research in Brazil: A structural topic modeling approach with a focus on temporal and gender trends

AbstractThis paper employs structural topic modeling (STM) to describe the academic philosophy landscape in Brazil. Based on a public national database, a corpus consisting of 12,515 abstracts of monographs defended in philosophy graduate programs between 1991 and 2021 was compiled. The final STM model identified 74 meaningful research topics, clustered into 7 thematic categories. This study discusses the prevalence of the most significant topics and categories, their trends across three decades, and their (positive or negative) association with the supervisor's gender. Results show the first empirical evidence that Brazilian philosophical research exhibits a greater focus on philosophers than on specific themes or problems. Moreover, by visualizing the variations in topic prevalence over time, it was possible to track the rise or decline of the major interest categories and topics. Finally, results also show which topics are more influenced or less influenced by gender.

Distribution and historical aspects of Brazilian Stachytarpheta (Verbenaceae): Exploring a comprehensive dataset of taxonomically verified specimens

Stachytarpheta (Verbenaceae) encompasses approximately 120 species distributed throughout tropical and subtropical regions of the Americas, with Brazil boasting the highest species richness (90 spp.) and endemism (82 spp.). This study introduces an updated, taxonomically revised, and credible occurrence dataset focusing on Stachytarpheta species in Brazil, comprising 4,843 records. This dataset results from expert revision of herbarium collections and integration with global repositories alongside national repositories in Brazil. It facilitates a thorough exploration of the temporal, geographical, and taxonomic patterns of Stachytarpheta across diverse regions and landscapes in Brazil. Stachytarpheta species and their occurrence records are concentrated in the states of Minas Gerais, Bahia, and Goiás, particularly in the campo rupestre and savanna formations of the Espinhaço Range and Chapada dos Veadeiros. Analysis of potential biases within our dataset revealed a correlation between specimen occurrences and proximity to roads. Rarefaction curves indicate ongoing potential for species discovery within the Cerrado and Caatinga domains, with the Tocantins state emerging as a particularly promising area for novel findings; therefore, presenting opportunities for exploration. The majority of the specimens are housed in Brazilian herbaria, particularly at RB, HUEFS, and CESJ. Temporal analysis of occurrence records showed an upward trend during the 20th century and the first decade of the 21st century, which can be attributed to the efforts of generalist collectors working mostly in Eastern and Central Brazil. Most collection efforts were carried out through Brazilian and European initiatives, often supported by local funding, especially during the mid-20th century. However, funding for scientific initiatives in Brazil has waned since the mid-2010s, potentially affecting recent trends in species recording. Our dataset serves as a resource enabling subsequent analysis delving into the systematics, biogeography, and conservation of this remarkable genus from open vegetation formations in Brazil.

Empowering Brazil's Energy Cooperatives: Creating a Federation and Fostering SDGs

Objective: This study examines the potential of establishing an energy cooperative federation in Brazil. Initially, challenges faced by cooperatives are identified, such as cultural resistance, lack of understanding about distributed generation, and financial difficulties. Theoretical Framework: Accelerating the global energy transition is necessary due to the effects of climate change, which presents a challenge for governments as they must balance conflicting agendas. Energy cooperatives have the potential to promote renewable energies and sustainable urban development and are increasingly growing in Brazil. By promoting unity, knowledge sharing, and collective advocacy, the federation can enhance the cooperatives' efficiency, influence, and resilience. This initiative aligns with multiple Sustainable Development Goals (SDGs). Method: Online interviews with management teams of Brazilian energy cooperatives and relevant organizations were conducted in 2023 to gather data on the sector's opportunities, challenges, and barriers. Data triangulation with literature provided a comprehensive view, leading to an analysis of key issues and a proposal to strengthen the sector.Results and Discussion: The main difficulties and solutions include: imbalances in relationships with utilities (discussion of legislation and regulation), disputes over taxation (revision of fees), difficulty obtaining resources (facilitated access to financing), high bureaucracy (simplification of processes), and public unfamiliarity (educational programs). Originality/Value: The proposed federation could act as a transformative force, promoting positive changes and shaping a more sustainable and democratic energy landscape in Brazil. Through robust governance structures, transparent practices, and active member engagement, this federation can catalyze innovation, promote equitable access to renewable energy, foster inclusive economic development, and position cooperatives as critical players in achieving sustainable development goals.

Corporate Governance Mechanisms and Financial Performance: An Analysis of Listed Companies in Brazil

Purpose: The aim of the study was to investigate the corporate governance mechanisms and financial performance: an analysis of listed companies in Brazil. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: The analysis of listed companies in Brazil found that strong corporate governance practices are associated with improved financial performance. Factors such as board independence, transparency, and shareholder rights positively influence profitability, liquidity, and market valuation. This highlights the vital role of effective corporate governance mechanisms in fostering investor confidence and driving sustainable financial success in Brazil. Unique Contribution to Theory, Practice and Policy: Agency theory, stakeholder theory & resource dependency theory may be used to anchor future studies on the corporate governance mechanisms and financial performance: an analysis of listed companies in Brazil. By emphasizing the pivotal role of board independence, transparency, and shareholder engagement, the study provides tangible guidance on governance practices that can be effectively implemented to bolster financial performance. Policymakers tasked with overseeing the corporate governance landscape in Brazil

Analysis of the chemical constituents of Myrcia glomerata G.Burton & E.Lucas leaves and assessment of their antimicrobial, antioxidant, and antibiofilm potential against pathogenic microorganisms

The Myrtaceae family plays a significant role in the Angiosperm landscape in Brazil, standing out as one of the most relevant. Within this context, the genus Myrcia ranks as the fourth largest, and its plant extracts and essential oils from these species are recognized as a valuable source of plant bioactives. In this context, Myrcia glomerata, popularly known as guamirim, stands out. Despite belonging to the Myrtaceae family, there is a lack of detailed research on its biological activities and chemical composition. The phytochemical investigation of the different plant extracts: ethanolic (EE), methanolic (ME), hexane (HE), acetone (AE), ethyl acetate (EAE) and dichloromethane (DE) revealed the presence of saponins, free steroids, alkaloids, anthocyanins, anthocyanidins, flavones, flavonols, xanthones, chalcones, aurones, flavononols and tannins, leading to the quantification of phenolic compounds (flavonoids, tannins, and alkaloids). The essential oil of the leaves, identified by gas chromatography coupled to mass spectrometry (GC-MS) identified 29 compounds, corresponding to 97.54% of the total area of the essential oil of M. glomerata. The main compounds found were sesquiterpenes, Elemicin (76.85%), Elixene (3.99%), E-caryophyllene (2.25%). EE showed the best antimicrobial potential, with concentrations ranging from 0.39 to 25 mg.mL-1, with Staphylococcus aureus and Proteus mirabilis strains being more susceptible in EE, ME and AE, showing 98.72%, 96.23% and 88.60% antioxidant activity, respectively. As for the antibiofilm potential, ME showed the greatest biomass reduction (90.53%) for Salmonella enterica Typhimurium, with cell viability of 9.02%. These results demonstrate the potential of EE and ME extracts from M. glomerata, representing a possible source of natural bioactives to be used in pharmaceuticals for the control of resistant microorganisms.

Understanding the USMLE journey of Brazilian medical students and graduates: a narrative review.

Over the past decades, advances in medical technology and research have promoted the globalization of medicine, drawing medical students and physicians worldwide into seeking for better career and financial prospects, as well as enhanced clinical and research training abroad. The medical landscape in Brazil has been marked by significant challenges over the past years, particularly within the Unified Health System (SUS). Despite the expansion of medical schools and initiatives such as the Mais Médicos program arising as efforts to improve healthcare access and decrease regional inequalities in the country, such problems as under-resourced working environments, inadequate infrastructure, and unattractive financial compensation for both physician and research careers, have risen as persisting challenges. In the pursuit of improved conditions, the United States Medical Licensing Examination (USMLE) has emerged as an increasingly common pathway for those seeking to overcome these challenges. This review explores the motivations behind Brazilians pursuing the USMLE while examining structural and financial challenges within the country's medical education and SUS landscape.

Roberto Burle Marx and the defense of the Brazilian landscape in the Federal Council of Culture

Resumo Este artigo dá notoriedade a quatro conferências proferidas pelo paisagista Roberto Burle Marx enquanto membro do Conselho Federal de Cultura, representando a Câmara de Artes, entre os anos de 1967 e 1974. Essas conferências são fontes primárias que refletem o lado conservacionista de Burle Marx e a sua preocupação com a preservação da paisagem brasileira, ao constatar, durante suas viagens e excursões botânicas, a destruição das florestas ante o desenvolvimento urbano desordenado e o descaso com os jardins públicos. Composto pela transcrição destas conferências, organizadas em ordem cronológica, e antecedida por uma sessão de comentário realizado a partir da interpretação do pensamento discorrido nos documentos, este artigo tem como objetivo demonstrar que Burle Marx não se destaca apenas pelas suas obras artísticas – projetos paisagísticos e artes plásticas –, que o tornaram mundialmente conhecido e até hoje estudado, mas também como ativista ambiental na defesa da paisagem brasileira e, portanto, na preservação do patrimônio cultural e natural do Brasil.

Caves, Karst Features and Speleological Heritage in Chapada Diamantina, Bahia, Brazil

Chapada Diamantina is among the best known and most visited landscapes in Brazil. Located in the state of Bahia, Northeast region of the country, it is characterized by mountains and plateaus that developed on Proterozoic sedimentary and metasedimentary rocks. Much of its territory is covered by carbonate and siliciclastic rocks, where relevant karst systems develop, marked by the occurrence of sinking streams, sinkholes, and caves with a great diversity of morphologies, speleothems, subterranean fauna, and paleontological and archaeological records. Relevant carbonate systems occur in Iraquara, such as the Lapa Doce, Torrinha, and Pratinha caves, which represent important tourist attractions. Also in these rocks, stand out the Brejões Cave, with a 106-m high entrance, and the Toca da Boa Vista, the largest cave in South America, extending across 114 km. Cultural manifestations are present in the prehistoric cave paintings at Santa Marta Shelter and recent religious pilgrimages at Mangabeiras Cave, in Ituaçu. In turn, siliciclastic karst systems are mainly in Serra do Sincorá. The Lapão and Castelo caves have expressive speleogens and speleothems, as well as the Torras Cave, in the Igatu region, ranked as the second largest in Brazil considering siliciclastic rocks.

Restauro dos jardins de Burle Marx para o IPPMG/UFRJ: experiência metodológica de observação de usos

This study aims to apply and discuss methodologies that contribute to the process of restoring and updating Burle Marx’s landscape project for the Institute of Childcare and Pediatrics Martagão Gesteira at the Federal University of Rio de Janeiro. Specifically looking at use observations, this study explores behavioral mapping as a tool to design guidelines to restore this public landscape heritage, designed by the most important Brazilian landscape designer. This study argues, among other issues, that the currently existing spaces fail to incorporate the originally proposed articulation between the open spaces and the building and points to future restoration and updating procedures.

Chemical and Physical Characterization of Swift Guano in Quartzitic Karst Landscape in Brazil

The Private Reserve of Natural Patrimony (RPPN) of the Santuário of Caraça is found in a mountain region within the Quadrilátero Ferrífero geological province in the State of Minas Gerais. In this region, intense metamorphic processes shaped their siliciclastic rocks, enabling the formation of fractures and diaclasis, the favourite routes of weathering during the development of karst landscapes. The natural cavities thus formed, mainly in the RPPN sector called “Pico do Inficionado”, provide shelter for countless swifts of the species Streptoprocne zonaris and S. biscutata, responsible for the accumulation of guano on the floor. However, guano is a substance rich in nutrients, mainly phosphates and nitrates, and this is the main nutrient supply in permanently dry caves. This work studied the physical (density) and chemical (organic carbon, nitrogen, potassium, phosphorus, sodium, calcium, magnesium, aluminium and pH) characteristics of 21 guanos layers, correlating their contents with the depth of seven deposits and separating the results into factors. Considering that, knowing that the guano deposits contain crucial elements such as Ca, Mg, and especially P and N, which act as an energy source for many chemotrophic organisms, the subdivision of the studied elements allowed us to defer three factors: the first one features the concentrations of Al, P, K, Na and CO, the second one was determined for N, pH and density. Finally, the third factor was based on Ca and Mg. The quartzitic material influences the chemical and physical composition of the deepest guano. As the rock changes, elements like Al and K are released and enrich the deeper layers, as well as increasing density due to the presence of sand in the material.

Impacts of agrochemical intensification and spatial isolation on the assembly and reassembly of temporary pond metacommunities

Abstract Since the Green Revolution, the management of agrochemicals has become a cornerstone of agriculture, allowing it to expand over terrestrial ecosystems previously deemed unsuitable for cultivation. Such expansion altered the connectedness of aquatic habitats to organisms with complex life cycles by increasing the number of temporary ponds in interfluves. Here, we investigate how spatial isolation and intensification in the use of agrochemicals can interact to increase or decrease the permeability of agricultural fields to these organisms by affecting community structure in temporary ponds. We carried out a field experiment that simulates realistic scenarios of agrochemical contamination at different levels of spatial isolation. We constructed 45 1200‐L artificial ponds in a Savanna landscape in Brazil at three distances from a source wetland (30, 120, and 480 m). The ponds were spontaneously colonized by aquatic insects and amphibians and treated with no agrochemicals (control), fertilizers (as in managed pastures) or fertilizers and a single pulse of the insecticide fipronil and the herbicide 2,4‐D (as in sugarcane fields) following realistic dosages and application schedules. Communities treated only with fertilizers generally exhibited a higher abundance of aquatic insects at the peak of the rainy season, suggesting that fertilization caused bottom‐up effects. However, because low spatial isolation and fertilization favoured different predatory taxa, their insect prey eventually became less abundant in less isolated fertilized ponds. Communities treated with fertilizers and pesticides diverged strongly from other treatments after the application of the insecticide, when a decrease in insect abundance indirectly benefitted amphibian populations. In this case, spatial isolation delayed the recovery of the abundance of several herbivore and detritivore insects in isolated ponds. Synthesis and applications. These results have direct consequences for the emergence of insects and amphibians, possibly affecting important ecosystem services. Such consequences can be controlled by avoiding agrochemical contamination at the peak of most taxa reproductive season or through changes in spatial isolation by deliberately constructing wetlands in interfluves. In all cases, the effects of agrochemicals and isolation must be addressed jointly for a successful management of biodiversity in agricultural landscapes.

Reshaping the research landscape in Brazil.

Brazil would benefit from a long-term strategy for science and innovation that improves the standing of both science and scientists in the country.

P86 Traditional knowledge about tree species for redesign of livestock systems and landscapes in Brazil

P86 Traditional knowledge about tree species for redesign of livestock systems and landscapes in Brazil

To tweet, or not to tweet, that is the question: the Ayrton Senna Institute and education policy movement in Brazil

ABSTRACT In a context of global educational policy, several actors are emerging in the negotiations around educational policies that promote the policies that they consider appropriate. In this way, many education systems follow globally structured educational agendas, albeit in different ways. These agendas can be seen as comprising three key policy dimensions: education management, educational provision, and curriculum. Taking this into consideration we examine the role of the Ayrton Senna Institute (ASI) in the transnational policy-making landscape in Brazil. We examine whose knowledge, politics, or worldview ASI is advancing in Brazil. This paper is based both on a content analysis of the retrieved tweets from ASI’s official Twitter account from May 2013 to December 2020 as well as previous research from the authors on ASI’s trajectory and its role in the diffusion and mobility of policies in Brazil. The paper argues that the ASI is facilitating policy movement, particularly the ‘economics of education’ movement and ‘techno-solutionist’ strand currently promoted by international organisations. It also shows that ASI uses research for policy and reference societies as a discursive strategic tool to make the arguments more persuasive for their audience.

Brazilian Landscape of Hepatocellular Carcinoma.

The incidence of hepatocellular carcinoma (HCC) is expected to increase in the coming years, and strategies to mitigate the burden of this disease are needed in different regions. Geographic variations in epidemiology and risk factors, such as viral hepatitis and metabolic disease, pose challenges in adopting programs for early detection programs and management of patients with HCC. Brazil, like other countries, has high economic and social inequality, with heterogeneous access to health care. Viral hepatitis is the main risk factor but there is growing awareness of fatty liver disease. Risk factor monitoring and screening programs are unmet priorities because patients are often diagnosed at later stages. Advances in the management of patients with HCC have been made in recent years, including new tools for selecting patients for liver transplantation, sophisticated surgical techniques, and new systemic agents. High-volume academic centers often achieve favorable results through the adoption and application of established treatments, but this is not a reality in most regions of Brazil, because of disparities in wealth and resources. As HCC management requires a coordinated and multidisciplinary team, the role of local referral centers in decentralizing access to treatments and promoting health education in different regions should be encouraged and supported.

Accessing Dementia Care in Brazil: An Analysis of Case Vignettes.

Despite the rapid increase in the number of people living with dementia in Brazil, dementia care is limited. This study describes how people living with dementia and their carers access care, treatment, and support, and identifies what characteristics are likely to enable or prevent access. We created 10 vignettes to illustrate fictitious but realistic scenarios involving people living with dementia in Brazil. The vignettes explore a combination of socioeconomic and demographic variables. They were completed using an in-depth desk review of the dementia care landscape in Brazil; a Strengths, Opportunities, Weaknesses, and Threats (SWOT) analysis of the desk review; and expert knowledge. The analysis focused on identifying common sources of service provision, barriers of access to care and support, and specific issues experienced by some population groups. Access to a dementia diagnosis, care, and support for people living with dementia in Brazil is limited. Demographic and socio-economic circumstances play a role in determining the type of services to which a person might have access. Poor knowledge about dementia, lack of capacity in the health system, and lack of formal long-term care support are among the identified barriers to accessing timely diagnosis, care, and support in the country. Understanding the barriers and facilitators of access to diagnosis, treatment, and support for people with dementia and families with different demographic and socioeconomic characteristics is crucial for designing dementia policies that are context-specific and responsive to the care needs of different socioeconomic groups in Brazil.

Cost-effectiveness of selective internal radiation therapy with Y-90 resin microspheres for intermediate- and advanced-stage hepatocellular carcinoma in Brazil

AimsHepatocellular carcinoma (HCC) is a severe condition with poor prognosis that places a significant burden on patients, caregivers, and healthcare systems. Selective internal radiation therapy (SIRT) is a treatment available to patients with HCC which addresses some of the limitations of alternative treatment options. A cost-effectiveness analysis was undertaken into the use of SIRT using Y-90 resin microspheres for the treatment of unresectable intermediate- and late-stage HCC in Brazil.Materials and methodsA partitioned-survival model was developed, including a tunnel state for patients downstaged to receive treatments with curative intent. Sorafenib was the selected comparator, a common systemic treatment in Brazil and for which comparative evidence exists. Clinical data were extracted from published sources of pivotal trials, and effectiveness was measured in quality-adjusted life-years (QALYs) and life-years (LYs). The analysis was conducted from the Brazilian private payer perspective and a lifetime horizon was implemented. Comprehensive sensitivity analyses were conducted.ResultsLYs and QALYs were higher for SIRT with Y-90 resin microspheres versus sorafenib (0.27 and 0.20 incremental LYs and QALYs, respectively) and costs were slightly higher for SIRT (R$15,864). The base case incremental cost-effectiveness ratio (ICER) was R$77,602 per QALY. The ICER was mostly influenced by parameters defining the sorafenib overall survival curve and SIRT had a 73% probability of being cost-effective at a willingness-to-pay threshold of R$135,761 per QALY (3-times the per-capita gross domestic product in Brazil). Overall, sensitivity analyses confirmed the robustness of the results indicating that SIRT with Y-90 resin microspheres is cost-effective compared with sorafenib.LimitationsA rapidly evolving treatment landscape in Brazil and worldwide, and the lack of local data for some variables were the main limitations.ConclusionsSIRT with Y-90 resin microspheres is a cost-effective option compared with sorafenib in Brazil.