This study focused on downy mildew in hop caused by the pathogen Pseudoperonospora humuli. A systematic literature review was conducted using bibliometric analysis to explore trends in publishing, prominent research themes, and where research is being conducted on hop downy mildew. The databases Scopus, Web of Science, and ScienceDirect were used to identify publications spanning from 1928 to 2023. The analysis yielded 54 publications, with the most cited studies primarily focusing on disease management and host resistance. Additionally, these studies explored the genetic and pathogenic relationship between P. cubensis and P. humuli. A word co-occurrence map revealed that the main themes addressed in the publications included “hop”, “disease”, “downy”, “humuli”, “mildew”, and “Pseudoperonospora”. Notably, there was a particular emphasis on subtopics such as disease management, the disease reaction of hop cultivars, and the influence of weather factors on hop downy mildew. Notably, there was limited knowledge about the disease in regions with tropical climates. This study provides valuable information that can support and guide future research endeavors concerning downy mildew in hop cultivation.

The study systematically analyzes the literature in order to identify the main contributions of the trunk runoff study on the soil nutrient flux in recent years. The review included 47 articles published from 2015 to 2019. The aim of the present study is to correlate the main stemflow research subtopics that have contributed to chemical soil enrichment. Correlation analysis was performed in Iramuteq software with the aid of R software, based on keywords in the selected articles. There has been an overall upward trend in research related to stemflow impact on soil nutrient flux, mainly in Asia, whose publications have significantly increased over the latest years. Based on the keyword co-occurrence map, “stemflow” and “throughfall” were the main used terms because they established strong correlation to other keywords, mainly to “concentration”, “composition”, “biogeochemical cycle”, “nutrient cycling” and “dissolved organic matter”. These terms, in their turn, were correlated to and cooccurred with several other keywords, such as “soil”, “nitrogen”, “water chemistry”, “nutrient dynamics” and “cations”.

Objective: to analyze the influence of antopic actions in the community of Boa Vista Niterói-RJ. Method: descriptive, observational research, carried out by an interdisciplinary team in the Community of Boa Vista, Niterói-RJ, on July 23, 2016. Results and discussion: based on the authors' interdisciplinary knowledge, referring to social and environmental themes and sanitary, they highlight the vulnerabilities of the study area in terms of human interventions created by informal occupation. In general, the Boa Vista community has a slightly urbanized infrastructure, characterized by the distribution of electricity, masonry constructions and the paving of a few streets. Attention is paid to precarious solid waste (garbage) collection and poor basic sanitation. Conclusion: It is concluded that integrated disaster risk management is necessary, with structural and non-structural actions in this community to reduce local vulnerabilities and mitigate problems found in the study area, minimizing future disasters, which can lead to the development of regular urbanization.

Broad scientific and regulatory basis The text presents references to international regulatory bodies (IARC) and uses recognized toxicology concepts such as Hazard Quotient (HQ), Hazard Index (HI), and Cancer Risk (CR). This strengthens the credibili...