Abstract This study evaluated the effect of heating on the physicochemical properties and surface changes of tricalcium silicate sealers. Three tricalcium silicate root canal sealers (Bio-C Sealer, BioRoot-RCS, EndoSequence BC Sealer), and one epoxy resin-based sealer (AH Plus; control) were tested. The effect of heating on setting time (ST) and flowability were assessed according to ANSI/ADA 57 and ISO 6876 standards. Solubility and dimensional change (DC) of the set sealers were evaluated at 24 hours and after 30 days; the pH of the water used in the DC testing was also measured. Tests were repeated with heated sealers in an oven at 100 °C for 1 min. SEM and EDS analysis were performed. Data were analyzed using One-Way ANOVA and Tukey post-hoc tests (α=5%). Heating decreased the ST for AH Plus and EndoSequence (p<0.05). Heating reduced flowability (p<0.05) and increased pH for AH Plus (p<0.05). The solubility of Bio-C (dried specimens) was not in accordance with the ANSI/ADA standard. The solubility of EndoSequence was significantly higher (p<0.05) when it was heated and dried after 30 days. DC of Bio-C (24 h and 30 days), BioRoot-RCS (30 days) and AH Plus (24 h and 30 days) were not in accordance with the standards. SEM and EDS analysis showed significant changes in sealer microstructure after heating. In conclusion, heating decreased the ST and increased the solubility of EndoSequence BC sealer. No significant changes in flowability, DC, and pH were identified for all three tricalcium silicate sealers after heat application. However, all sealers had significant surface changes.

Resumo Este estudo avaliou o efeito do aquecimento nas propriedades físico-químicas e nas alterações superficiais de cimentos de silicato tricálcico. Três cimentos endodônticos de silicato tricálcico (Bio-C Sealer, BioRoot-RCS, EndoSequence BC Sealer) e um cimento à base de resina epóxi (AH Plus) foram testados para avaliar o efeito do aquecimento no tempo de presa (TP) e escoamento de acordo com as normas ANSI/ADA 57 e ISO 6876. A solubilidade e alteração dimensional (AD) dos cimentos foram avaliadas após 24 horas e 30 dias. O pH da água usada no teste de AD também foi medido. Os testes foram repetidos com cimentos aquecidos em um forno a 100 °C por 1 min. Análises em MEV e EDS foram realizadas. Os dados foram analisados pelos testes de ANOVA-1 via e post hoc de Tukey (α=5%). O aquecimento diminuiu o TP para AH Plus e EndoSequence (p<0,05). O aquecimento reduziu o escoamento (p<0,05) e aumentou o pH do AH Plus (p<0,05). A solubilidade do Bio-C (amostras desidratadas) não estava de acordo com o padrão ANSI/ADA. A solubilidade da EndoSequence foi significativamente maior (p<0,05) quando aquecida e desidratada após 30 dias. As AD de Bio-C (24 h e 30 dias), BioRoot-RCS (30 dias) e AH Plus (24 h e 30 dias) não estavam de acordo com as normas ADA e ISO. A análise em MEV e EDS mostrou alterações significativas na estrutura dos cimentos após aquecimento. Em conclusão, o aquecimento diminuiu o TP e aumentou a solubilidade do cimento EndoSequence BC. Não foram identificadas mudanças significativas no escoamento, AD e pH para os cimentos de silicato tricálcico após aquecimento. Porém, todos os cimentos tiveram alterações significativas na superfície.

ABSTRACT Introduction: The perception of prejudice against, and stigmatization of, sickle cell disease (SCD) leads the patient to perceive a different treatment, due to the disease stigma and maybe related to a worse quality of life (QoL). Objectives: Describe and evaluate the perception of the prejudice against the disease and its impact on the quality of life of patients with sickle cell disease. Methods: This is a cross-sectional study conducted between March 2019 and February 2020, with patients diagnosed with SCD. Patients were questioned about the perception of prejudice in any kind of situation, choosing between “Yes” or “No”, not differentiating situations related to prejudice. To assess the QoL and impact of the disease, the volunteers answered a version of the SF-36 questionnaire translated and validated into Brazilian Portuguese. Results: In this study, 113 patients with SCD were followed up, 92% were classified as HbSS and the rest, divided between HbSC and HbS-β-0. Regarding the SF-36, the worst scores were in the summary of the physical components (mean 48.19 ± 21.51) and the physical aspect had the lowest mean (30.75 ± €42.65). When questioned if they had already perceived any kind of prejudice, including the SCD, 32.74% answered “Yes”. For this comparison, there was a significant difference in the summary of the physical and mental components, with worse QoL for those who had already suffered prejudice. Conclusion: Patients diagnosed with SCD who reported perception of prejudice had statistically significant worse QoL, revealing the negative impact, that might lead to sadness and social isolation.

ABSTRACT The covid-19 vaccine confers direct protection and reduces transmission rates of the virus and new variants. Vaccines from Pfizer/BioNTech and CoronaVac have been cleared for children in Brazil. They are safe, effective, and immunogenic. There are no known complications associated with the use of steroids or vaccines in pediatric patients with covid-19 and nephrotic syndrome. With or without immunosuppression, these patients are not at increased risk of severe covid-19, and steroids are safe for them. A milder form of covid-19 occurs in patients with chronic kidney disease without the need for hospitalization. The vaccine response may be reduced and/or the duration of antibodies after vaccination may be shorter than in the general population. However, considering risk of exposure, vaccination against covid-19 is recommended. It is believed that patients with hemolytic-uremic syndrome are at higher risk of severe covid-19. Vaccination is recommended, although specific data on the safety and efficacy of the covid-19 vaccine are limited. There is agreement that the benefits of induced immunity outweigh the risks of immunization. Vaccination against covid-19 is recommended for children and adolescents needing kidney transplantation or who have undergone transplantation. These patients present decreased immune response after vaccination, but immunization is recommended because the benefits outweigh the risks of vaccination. Current recommendations in Brazil stipulate the use of the messenger RNA vaccine. This paper aims to provide pediatric nephrologists with the latest knowledge about vaccination against covid-19 for children with kidney disease.

Resumo A vacina covid-19 confere proteção direta, reduz as taxas de transmissão do vírus e de novas variantes. No Brasil, estão liberadas para a população pediátrica as vacinas Pfizer/BioNTech e a CoronaVac, ambas seguras, eficazes e imunogênicas. Pacientes pediátricos com síndrome nefrótica e covid-19 têm curso clínico regular sem complicações relacionadas ao uso de esteroides ou vacinas. Esses pacientes, com ou sem imunossupressão, não apresentam maior risco de covid-19 grave e o tratamento com esteroides é seguro. Os pacientes com doença renal crônica têm covid-19 mais leve, sem necessidade de hospitalização. A resposta vacinal pode ser reduzida e/ou a duração dos anticorpos pós-vacinação pode ser menor do que na população geral. Entretanto, a vacina covid-19 está recomendada, considerando o risco de exposição. Acredita-se que pacientes com síndrome hemolítico-urêmica teriam maior risco de covid-19 grave. A vacina é recomendada, embora dados específicos sobre segurança e eficácia da vacina covid-19 sejam limitados. Há concordância que os benefícios da imunidade induzida superam quaisquer riscos da imunização. A vacina covid-19 é recomendada para crianças e adolescentes candidatos ao transplante renal ou já transplantados. Esses pacientes têm resposta imunológica reduzida após a vacina, entretanto ela é recomendada porque os benefícios superam qualquer risco dessa vacinação. A recomendação atual no Brasil é a vacina de tecnologia RNA mensageiro. O objetivo deste documento é levar aos nefrologistas pediátricos os conhecimentos mais recentes sobre a vacinação contra contra-19 em crianças com doenças renais.

The São Luís Island, Maranhão State, is an ecotonal region, a mix of humid forest, cocais forest, dune vegetation, restingas and mangroves. Unlike the interior of the State, their coastal areas have a gap in knowledge of the Passifloraceae. Here, through field expeditions and herbaria visit, we provide taxonomic treatment, identification key and comments on the Passifloraceae of the São Luís Island. Ten species were recorded: Passiflora auriculata Kunth, P. edulis Sims, P. foetida L., P. glandulosa Cav., P. laurifolia L., P. misera Kunth, P. nitida Kunth, P. picturata Ker Gawl., P. subrotunda Mast., and P. vespertilio L. Passiflora picturata and P. misera were recorded for the first time on São Luís Island.

A Ilha de São Luís, Estado do Maranhão, configura-se como uma região ecotonal, um misto de floresta úmida, mata-de-cocais, vegetação de dunas, restingas e manguezais. Diferentemente do interior do Estado do Maranhão, suas zonas costeiras possuem uma lacuna sobre o conhecimento da família Passifloraceae. Aqui, por meio de expedições de campo e consulta a herbários, nós fornecemos o tratamento taxonômico, chave de identificação e comentários sobre as Passifloraceae da Ilha de São Luís. Foram registradas dez espécies: Passiflora auriculata Kunth, P. edulis Sims, P. foetida L., P. glandulosa Cav., P. laurifolia L., P. misera Kunth, P. nitida Kunth, P. picturata Ker Gawl., P. subrotunda Mast. e P. vespertilio L. As espécies P. picturata e P. misera foram registradas pela primeira vez na Ilha de São Luís.

Abstract Objective Evaluate the effect of combined training on body image (BI), body composition and functional capacity in patients with breast cancer. As also the relationship of BI with body composition and functional capacity. Methods This was a Controlled Clinical Trial study, this study including 26 patients with breast cancer (30 to 59 years). The training group (n = 13) underwent 12 weeks of training, including three 60-min sessions of aerobic exercise and resistance training, and two sessions of flexibility training per week; each flexibility exercise lasted 20s. The Control Group (n = 13) received only the standard hospital treatment. Participants were evaluated at baseline and after 12 weeks. BI (primary outcomes) was assessed using the Body Image After Breast Cancer Questionnaire; Body composition was estimated with the indicators: Body mass index; Weight, Waist hip Ratio; Waist height ratio; Conicity index; Reciprocal ponderal index; Percentage of fat; Circumference of the abdomen and waist; Functional capacity by cardiorespiratory fitness (cycle ergometer) and strength (manual dynamometer). The statistic was performed in the Biostatistics and Stata 14.0 (α = 5%). Results The patients in the training group showed a reduction in the limitation dimension (p = 0.036) on BI, However, an increase in waist circumference was observed in both groups. In addition an increase in VO2max (p < 0.001) and strength in the right (p = 0.005) and left arms (p = 0.033). Conclusion Combined training demonstrates to be an effective and non-pharmacological strategy to patients with breast cancer, with improvement on BI and functional capacity, changing related variables negatively when there is no physical training.

Resumo Objetivo Avaliar o efeito do treinamento combinado na imagem corporal (IB), composição corporal e capacidade funcional em pacientes com câncer de mama. Assim como a relação do IB com a composição corporal e capacidade funcional. Métodos Este foi um estudo de Ensaio Clínico Controlado, este estudo incluiu 26 pacientes com câncer de mama (30 a 59 anos). O grupo de treinamento (n = 13) foi submetido a 12 semanas de treinamento, incluindo três sessões de 60 min de exercício aeróbio e treinamento de resistência, e duas sessões de treinamento de flexibilidade por semana; cada exercício de flexibilidade durou 20s. O Grupo Controle (n = 13) recebeu apenas o tratamento hospitalar padrão. Os participantes foram avaliados no início e após 12 semanas. O IB (desfechos primários) foi avaliado por meio do Body Image After Breast Cancer Questionnaire; A composição corporal foi estimada com os indicadores: índice de massa corporal; Peso, relação cintura-quadril; Relação da altura da cintura; Índice de conicidade; Índice ponderal recíproco; Porcentagem de gordura; Circunferência do abdômen e cintura; Capacidade funcional por aptidão cardiorrespiratória (cicloergômetro) e força (dinamômetro manual). A estatística foi realizada na Bioestatística e no Stata 14.0 (α = 5%). Resultados Os pacientes do grupo de treinamento apresentaram redução da dimensão da limitação (p = 0,036) no IB, porém, foi observado aumento da circunferência da cintura em ambos os grupos. Além disso, um aumento do VO2máx (p <0,001) e da força nos braços direito (p = 0,005) e esquerdo (p = 0,033). Conclusão O treinamento combinado demonstra ser uma estratégia eficaz e não farmacológica para pacientes com câncer de mama, com melhora do IB e da capacidade funcional, alterando variáveis relacionadas negativamente quando não há treinamento físico.

Abstract The zoanthid Palythoa caribaeorum secretes a large quantity of mucus that acts as a substrate for microbial communities. Culturable bacteria associated with P. caribaeorum mucus in northeastern Brazil were evaluated through 16S rRNA gene sequences. Proteobacteria was the dominant group, followed by Actinobacteria and Firmicutes. Vibrio was the most common genus, although other groups with the ability to produce biosurfactants and compounds with antimicrobial activity were also present. The studies of culturable marine bacteria may contribute to the understanding of the associated microbial community, opening new opportunities to explore biotechnological potential of microbiota.

Introduction: Caregivers of end-of-life patients are exposed to great emotional overload and suffering. This study aims to investigate signs of psychological distress (depression, anxiety and anguish) and the presence of well-being in caregivers of patients at the end of life hospitalized in an oncology palliative care ward. Methods: This is a cross-sectional descriptive study, which included a non-probabilistic sample of 90 main caregivers of individuals hospitalized in the palliative care sector of a cancer reference hospital. The subjects were assessed for the presence of well-being using the Well-Being Assessment Questionnaire (GCQ); the presence of anguish (distress) through the Distress Thermometer; and anxiety and depression by the Anxiety and Depression Scale. Statistical correlations were made between the variables. Results: Female caregivers who lived with the patient had lower levels of well-being. Anxious symptoms were present in 76%, with higher scores in caregivers with less education, who lived with the patient and who cared for other people. Depressive symptoms were present in 55%, with a higher rate in caregivers who lived with the patient. Women and caregivers who performed rotation had a higher distress score. Well-being was inversely proportional to depression, distress and anxiety. Conclusion: This analysis showed higher rates of depression, anxiety and anguish among caregivers, as well as lower well-being. The improvement in well-being can alleviate anxiety, depressive and anguish symptoms. Strategies to improve communication and welcoming in the hospital environment can promote well-being and reduce the symptoms of psychic illness in caregivers of patients at the end of life.

Introdução: Cuidadores de pacientes em fim de vida estão expostos a grande sobrecarga emocional e sofrimento. Esse estudo objetiva investigar sinais de sofrimento psíquico (depressão, ansiedade e angústia) e presença de bem-estar em cuidadores de pacientes no fim da vida hospitalizados em enfermaria de cuidados paliativos oncológicos. Métodos: Trata-se de estudo descritivo transversal, o qual contou com uma amostra não probabilística de 90 cuidadores principais de indivíduos hospitalizados no setor de cuidados paliativos de um hospital referência em câncer. Os sujeitos foram avaliados quanto à presença de bem-estar por meio do Questionário de Avaliação do Bem-Estar (GCQ); a presença de angústia (distress) através do Termômetro de Distress; e ansiedade e depressão pela Escala de Depressão e Ansiedade. Foram feitas correlações estatísticas entre as variáveis. Resultados: Cuidadores do gênero feminino e que residiam com o paciente apresentaram menores índices de bem-estar. Sintomas ansiosos estiveram presentes em 76%, com maiores escores em cuidadores com menor escolaridade, que residiam com o paciente e que cuidavam de outras pessoas. Sintomas depressivos apresentaram-se em 55%, com maior índice em cuidadores que residiam com o paciente. Mulheres e cuidadores que realizavam rodízio apresentaram maior escore de angústia. Bem-estar foi inversamente proporcional a depressão, angústia e ansiedade. Conclusão: A partir desta análise demonstrou-se maiores índices de depressão, ansiedade e angústia entre cuidadores, assim como menor bem-estar. A melhora no bem-estar pode aliviar sintomas ansiosos, depressivos e angústia. Estratégias para a melhoria da comunicação e acolhimento no ambiente hospitalar podem promover bem-estar e redução dos sintomas de adoecimento psíquico de cuidadores de pacientes no final da vida.

Abstract: Our goal was to determine physical properties and anatomical features in 33-year-old Hevea brasiliensis clones. We cut wood samples from clones LCB510, RRIM600, IAN873, IAN717 and GT1 planted in Selvíria, Mato Grosso do Sul, Brazil. We used standard techniques in wood studies. We found that clones differ in basic density, volumetric shrinkage and anatomical features, with the exception of ray width. Basic density, volumetric shrinkage, fiber length, fiber wall thickness, vessel element length and vessel diameter tended to increase from pith to bark, while vessel frequency propended to decrease. We conclude that wood of the studied clones has potential for industrial use.

ABSTRACT BACKGROUND: Neuroendocrine tumors are rare neoplasms of uncertain biological behavior. The liver is one of the most common sites of metastases, occurring in 50% of patients with metastatic disease. AIMS: To analyze a clinical series in liver transplant of patients with neuroendocrine tumors metastases. METHODS: A retrospective descriptive study, based on the review of medical records of patients undergoing liver transplants due to neuroendocrine tumor metastases in a single center in northeast Brazil, over a period of 20 years (January 2001 to December 2021). RESULTS: During the analyzed period, 2,000 liver transplants were performed, of which 11 were indicated for liver metastases caused by neuroendocrine tumors. The mean age at diagnosis was 45.09±14.36 years (26–66 years) and 72.7% of cases were females. The most common primary tumor site was in the gastrointestinal tract in 64% of cases. Even after detailed investigation, three patients had no primary tumor site identified (27%). Overall survival after transplantation at one month was 90%, at one year was 70%, and five year, 45.4%. Disease-free survival rate was 72.7% at one year and 36.3% at five years. CONCLUSIONS: Liver transplantation is a treatment modality with good overall survival and disease-free survival results in selected patients with unresectable liver metastases from neuroendocrine tumors. However, a rigorous selection of patients is necessary to obtain better results and the ideal time for transplant indication is still a controversial topic in the literature.

RESUMO RACIONAL: Os tumores neuroendócrinos são neoplasias raras de comportamento biológico incerto. O fígado é um local comum de metástase, ocorrendo em 50% dos pacientes com doença metastática. OBJETIVOS: Analisar casuística de transplante hepático por metástases de tumores neuroendócrinos. MÉTODOS: Estudo descritivo retrospectivo com revisão de prontuários de pacientes submetidos a transplante hepático por metástases de tumores neuroendócrinos em um único centro no Nordeste do Brasil durante 20 anos (janeiro de 2001 a dezembro de 2021). RESULTADOS: Durante o período analisado, foram realizados 2.000 transplantes hepático, sendo 11 indicados por metástases hepáticas de tumores neuroendócrinos. A média de idade ao diagnóstico foi de 45,09±14,36 anos (26–66 anos) e 72,7% dos casos eram do sexo feminino. O local do tumor primário mais comum foi o trato gastrointestinal (64% dos casos). Após detalhada investigação, três pacientes não tiveram o local do tumor primário identificado (27%). A sobrevida global um mês e após um ano do transplante foi de 90 e 70%, respectivamente. A sobrevida após 5 anos foi de 45,4%. A taxa de sobrevida livre de doença foi de 72,7% no primeiro ano e 36,3% em cinco anos. CONCLUSÕES: O transplante hepático é uma modalidade de tratamento com bons resultados de sobrevida global e sobrevida livre de doença, em pacientes selecionados com metástases hepáticas irressecáveis de tumores neuroendócrinos. No entanto, a seleção rigorosa dos pacientes é necessária para obter melhores resultados e o momento ideal para a indicação do transplante ainda é um tema controverso na literatura.

Abstract Few long-term studies assess the discoloration induced by hydraulic calcium silicate-based cement on dental structures. In addition, as far as we know, no long-term study has assessed the discoloration induced by these cement on composite resin. Objective This in vitro study aimed to assess, during a period of two years, the discoloration potential of different hydraulic calcium silicate-based cements (hCSCs) on the enamel/dentin structure and composite resin restoration. Methodology A total of 40 enamel/dentin discs were obtained from bovine incisors, and 40 composite resin discs (10 mm in diameter × 2 mm thick) were fabricated. A 0.8 mm-deep cavity was made in the center of each disc and filled with the following hCSCs (n=10): Original MTA (Angelus); MTA Repair HP (Angelus); NeoMTA Plus (Avalon); and Biodentine (Septodont). An initial color measurement was performed (T0 - baseline). After 7, 15, 30, 45, 90, 300 days, and two years, new color measurements were performed to determine the color (ΔE00), lightness (ΔL’), chroma (ΔC’), hue differences (ΔH’), and whiteness index (WID). Results For enamel/dentin, the ΔE00 was significant among groups and periods (p<0.05). NeoMTA Plus had the greatest ΔE00. The NeoMTA Plus group had the greatest ΔE00 after two years for composite resin. Significant reduction in lightness was observed for all groups after two years (p<0.05). The most significant WID values were observed after 30 days for Biodentine (enamel/dentin) and MTA Repair HP groups (composite resin) (p<0.05). Conclusions The hCSCs changed the colorimetric behavior of both substrates, leading to greater darkening over time. The Bi2O3 in the Original MTA seems relevant in the short periods of color change assessment.

Abstract Objective To develop an application for monitoring the treatment of individuals with tuberculosis. Methods A methodological study with three phases: preparation of the concept map according to the manuals of the Brazilian Ministry of Health and the World Health Organization; development of the application, with navigation and prototyping design; and based on Pasquale’s method, content validation was performed by health experts in an online environment with semantic validation by the target audience, individuals with tuberculosis treated in a health unit in Natal, Rio Grande do Norte, Brazil, using the Delphi technique, analyzed using the Content Validity Index. Results The final version of the application was developed after three rounds of the Delphi technique. In the third Delphi round, the overall Content Validity Index was 0.92, as rated by seven expert evaluators in the North, Northeast, Central-West, South, and Southeast of Brazil, and validated by six patients being treated for tuberculosis, obtaining an overall Content Validity Index of 0.98. Conclusion The application was validated regarding content and semantics by expert evaluators working in the area of tuberculosis in more than one region of Brazil, from a multidisciplinary perspective, and by the target audience for which it is intended. It was considered an important tool to contribute to control strategies for the treatment of tuberculosis.

Resumen Objetivo Elaborar una aplicación para el seguimiento del tratamiento de personas con tuberculosis. Métodos Estudio metodológico de tres fases: preparación del mapa conceptual por medio de manuales del Ministerio de Salud de Brasil y de la Organización Mundial de la Salud; desarrollo de la aplicación con la elaboración del proyecto de navegación y creación del prototipo; y validación de contenido y semántica guiada por el método de Pasquale, en la cual la validación de contenido fue realizada por jueces especialistas en salud en ambiente virtual y la validación semántica por el público destinatario, personas con tuberculosis atendidas en una unidad de salud de Natal, estado de Rio Grande do Norte, Brasil, mediante el método Delphi analizado a partir del Índice de Validez de Contenido. Resultados Se elaboró la aplicación en su versión final luego de tres etapas del método Delphi. En la etapa Delphi 3, el Índice de Validez de Contenido global fue 0,92, evaluado por siete jueces especialistas de las regiones Norte, Nordeste, Centro-oeste, Sur y Sudeste, y validado por seis personas con tuberculosis atendidas, con un Índice de Validez de Contenido global de 0,98. Conclusión La aplicación fue validada respecto al contenido y a la semántica por jueces especialistas, bajo una perspectiva multiprofesional y del área de tuberculosis con presencia en más de una región de Brasil, y por el público destinatario. Fue considerada una herramienta importante para sumar a las estrategias de control para el fin de la tuberculosis.

Resumo Objetivo Construir um aplicativo para o acompanhamento do tratamento de pessoas com tuberculose. Métodos Estudo metodológico com três fases: preparação do mapa conceitual por meio de manuais do Ministério da Saúde do Brasil e da Organização Mundial da Saúde; a construção do aplicativo com a elaboração do projeto de navegação e a prototipagem; e validação por conteúdo e semântica guiada pelo método de Pasquale com validação de conteúdo por juízes especialistas em saúde em ambiente online e validação de semântica pelo público-alvo, pessoas com tuberculose atendidas em uma unidade de saúde de Natal, no Rio Grande do Norte, Brasil, por meio da Técnica Delphi analisada a partir do Índice de Validade de Conteúdo. Resultados Construiu-se o aplicativo em sua versão final após três etapas da Técnica Delphi. Na etapa Delphi 3, o Índice de Validade de Conteúdo global foi de 0,92, sendo avaliado por sete juízes especialistas nas regiões Norte, Nordeste, Centro-Oeste, Sul e Sudeste e validado por seis pessoas com tuberculose atendidas, alcançando um Índice de Validade de Conteúdo global de 0,98. Conclusão O aplicativo foi validado quanto ao conteúdo e à semântica por juízes especialistas, em uma perspectiva multiprofissional, e atuantes na área de tuberculose de mais de uma região do Brasil e pelo público-alvo a que se destina, sendo considerado uma ferramenta importante para somar às estratégias de controle para o fim da tuberculose.

Abstract We evaluate how the concentrations of inorganic nutrients and chlorophyll a vary in a heterogeneous area (Equatorial SW Atlantic), covering a gradient from stations closer to the coast to others more distant associated or not with turbid-zone reefs. Vertical temperature (27.9 ± 0.10 °C; mean ± standard deviation) and salinity (36.2 ± 0.14) profles showed that the water column is well mixed (0-30 m depth). The oligotrophic condition was marked by low concentrations of phosphate (0.30 ± 0.22 µM) and dissolved inorganic nitrogen (0.64 ± 0.74 µM). Moreover, dissolved reactive silicon (DSi) was low in most samples (< 2.0 µM), but higher (>10 µM) in nearshore stations, probably related to continental runoff and/or resuspension of the bottom sediments. The pelagic phytoplankton biomass indicated that chlorophyll a (0.25 ± 0.08 µg L-1) was low, positively correlated with light and negatively correlated with nutrients, indicating possible phytoplankton uptake. Chlorophyll a concentrations were lower in stations closer to the coast and higher in some stations near the reefs, indicating that the latter could be more prone to phytoplankton development and depletion of nutrients, especially DSi. Therefore, although oligotrophy is present along this coast, we found some unexpected heterogeneity of nutrient and chlorophyll a distributions, which were probably infuenced by benthic-pelagic coupling due to the presence of extensive reefs, sponge gardens (18-30 m depth), and the proximity to the coast. These results highlight the importance of understanding the heterogeneity of ocean productivity, especially in lesser known low-latitude areas, which showed distinct nutrient and chlorophyll a levels related to the occurrence of tropical reefs that are capable of supporting important fsh stocks and unique biological communities.

Abstract The Brazilian Journal of Occupational Health (RBSO) is a reference journal within the occupational health and safety community. It is dedicated to publishing scientific articles that contribute to the critical analysis of current and pertinent issues concerning the relationship between work and health. In 2023, RBSO celebrates its 50th anniversary. This editorial note is dedicated to reporting on the commemorative event, describing the main topics covered in the presentations and discussions, with the aim of documenting this important moment, which can be considered a milestone for celebrating the past and building the future of RBSO. This event offered a crucial opportunity not only to celebrate RBSO’s five decades of existence but also to bring together a community deeply committed to scientific publishing in the field of occupational health. It brought valuable reflections, proposals, and recommendations aimed at strengthening both the journal and the field it represents. The presence and active participation of the editorial team, along with the invited attendees, played an indispensable role in the success of this gathering. During this event, RBSO reaffirmed its dedication to keep enhancing its editorial standards, drawing from the experiences and ideas that have been discussed.

Resumo A Revista Brasileira de Saúde Ocupacional (RBSO) é um periódico considerado referência pela comunidade da área de segurança e saúde do trabalhador, sendo veículo dedicado à publicação de artigos científicos que contribuam para a reflexão e análise científica de questões atuais e relevantes relacionadas às relações entre trabalho e saúde. Em 2023, a RBSO completa 50 anos de existência. Esta nota editorial dedica-se a relatar o evento comemorativo, descrevendo os principais aspectos abordados nas apresentações e nos debates ocorridos, com vistas a registrar este importante momento, que pode ser considerado um marco para celebrar o passado e construir o futuro da revista. Tal evento foi uma oportunidade crucial, não somente para celebrar o meio século de existência da RBSO, mas também para propiciar o encontro de uma comunidade dedicada à publicação científica em saúde do trabalhador, que proporcionou reflexões, propostas e recomendações voltadas ao fortalecimento da revista e do campo. A presença e o envolvimento da equipe editorial, bem como dos convidados, foram fundamentais para o sucesso desse encontro, durante o qual a RBSO reafirmou o compromisso com a busca contínua por aprimoramento editorial, a partir das experiências e ideias debatidas.