This study quantifies phenolic and flavonoid compounds and evaluates the antioxidant activity by the DPPH (2,2-diphenyl-1-picrylhydrazyl) method, also identifying some secondary metabolites of R. sativus under organic fertilization and water stress. For this, a greenhouse experiment was carried out with the preparation of plant extracts (leaves and roots), quantification of phenolic and flavonoid compounds, analysis of antioxidant activity, and phytochemical screening. Different classes of secondary metabolites (catechins, steroids, saponins, among others) were identified. The DPPH method showed that the leaf extract has higher DPPH radical scavenging activity. The leaf extract had a high content of phenolic compounds, especially in treatments without water stress, either with organic fertilization (1925.59 mg GAE/g extract) or with mineral fertilization (2058.47 mg GAE/g extract). For root extracts, R. sativus developed under water stress and organic fertilization showed higher phenolic content (1383.24 mg GAE/g extract). Regarding flavonoid content, the root extract that showed the highest concentration corresponded to the treatment under water stress and without fertilization (82.1 mg QE/g extract). Therefore, radish was shown to be rich in bioactive compounds and with antioxidant potential in both its leaves and roots.

Analysis of Remote Education as an emergency alternative during theCovid-19 pandemic (Sars-Cov-2) Análise da Educação Remota como uma alternativa emergencial durante a pandemia da Covid-19 (Sars-Cov-2) BARBOSA, Jessia Elem Cunha (1) ; SOUZA, Giselle Silva de (2) ; SANTOS Thaíse da Silva (3) ; SANTOS, Claudimary Bispo dos (4) ; NASCIMENTO, Cícera Maria Alencar do (5) ; ROCHA, Mabel Alencar do Nascimento (6)

Routine blood culture is used for the detection of bloodstream infections by aerobic and anaerobic bacteria and by common pathogenic yeasts. A retrospective study was conducted in a public hospital in Maceió-AL, by collecting data of all medical records with positive blood cultures. Out of the 2,107 blood cultures performed, 17% were positive with Staphylococcus coagulase negative (51.14%), followed by Staphylococcus aureus (11.21%) and Klebsiella pneumoniae (6.32%). Gram-positive bacteria predominated among positive blood cultures, highlighting the group of Staphylococcus coagulase-negative. While Gram-negative bacteria had a higher number of species among positive blood cultures.

Introduction: COVID-19 is a major public health concern in this century. The causative agent SARS-CoV-2, is highly contagious and spreads continuously across territories. Spatial analysis is of enormous importance in the process of understanding the disease and its transmission mechanisms. We aimed to identify the risk areas for COVID-19 and analyze their association with social vulnerability in Maceió, Alagoas. The study was conducted in 2020. Methodology: This is an ecological study to evaluate the incidence, mortality and case fatality rate of COVID-19 and their relationship with 12 indicators of human development and social vulnerability. Multivariate and spatial statistics were applied. A 95% confidence interval and a 5% confidence level were considered. Results: The spatial scan statistic revealed the existence of six high-risk clusters for the incidence of COVID-19. The regression model showed that social indicators, such as literacy of people, residents of private households, households with more than four residents, and resident brown population, were associated with COVID-19 transmission in Maceió-AL. The disease affected localities whose populations are exposed to a context of intense socioeconomic vulnerability. Conclusions: Based on the results, it is necessary to adopt measures that take into account the social determinants of health in order to minimize the damage caused by the pandemic.

Objetivou-se com o presente trabalho apresentar a interação entre patógenos– hospedeiro –ambiente, e os principais aspectos envolvidos no mecanismo de defesa de plantas contra o ataque de patógenos, evidenciando algumas doenças causadas pelos patógenos. A pesquisa trata-se de revisão bibliográfica realizada em artigos, livros, teses, dissertações e monografias desde os anos de 1982 a 2020, na língua inglesa e portuguesa. Para elaboração do manuscrito foram utilizadas as bases de sites de SciELO, Google acadêmico, Periódicos Capes e livros, os descritores utilizados foram Interação planta – patógeno –ambiente. As plantas possuem defesas que podem ser ativamente expressadas em resposta a patógenos, geralmente respondem ao ataque de fitopatógenos mediante características estruturais que atuam como barreiras físicas e impedem que estes se propaguem, através de reações bioquímicas que produzem substâncias tóxicas para o patógeno ou criam condições que inibem seu desenvolvimento. No processo de interação patógeno-hospedeiro, existe a ativação do sistema de defesa da planta por vários meios, resultando na produção de substâncias tóxicas aos patógenos, impedindo o estabelecimento destes. Visto que, essas defesas podem ser estruturais ou químicas, e dependendo do patógeno atacante. Além do mais, é importante ressaltar que toda ação neste sistema de interação patógeno-hospedeiro, resulta numa reação (física, bioquímica e condições climáticas). Onde, existe um equilíbrio dinâmico nesta relação e este equilíbrio determina a resistência ou suscetibilidade de plantas aos patógenos. Sendo, que quando há o desequilíbrio nas funções da planta é prejudicial e leva ao desenvolvimento de sintomas, provocando danos ao hospedeiro e consequentemente podendo afetar as interações.