RESUMOSementes de espécies florestais que possuem tegumentos rígidos freqüentemente apresentam consideráveis problemas para a produção de mudas, por quanto que seus tegumentos duros e impermeáveis à água dificultam e retardam a germinação. Nesse sentido, esse trabalho objetivou determinar a metodologia mais eficiente para superação da dormência em sementes de Sesbania virgata (cav.) Pers., uma espécie com potencial para recomposição de áreas degradadas. Os tratamentos pré-germinativos utilizados foram imersão em ácido sulfúrico por 5, 10, 20 ou 30 minutos, escarificação mecânica ou choque térmico. Após a escarificação, as sementes de todos os tratamentos foram submetidas aos testes germinativos em câmaras de germinação a 25 ºC e fotoperíodo de 14 h. O tratamento com escarificação mecânica demonstrou o maior percentual germinativo (98%), seguida da escarificação química por 30 minutos (57%). O tratamento térmico apesar de obter um maior percentual germinativo do que o controle apresentou desenvolvimento anormal de plântulas, não sendo, pois, recomendado para sementes de S. virgata. Diante dos parâmetros utilizados neste estudo, recomenda-se o uso da técnica de escarificação mecânica para a superação da dormência de sementes de S. virgata.Palavras chave: Sesbania virgata, latencia, germinación de semillas. ABSTRACT Forest species with hard seeds often pose considerable problems to nursery managers because their hard and impermeable seed coats hinder and delay germination. Therefore, this work aimed to determine the most efficient, practical and low cost methodology to overcome dormancy in

Visceral leishmaniasis (VL), also known as ‘calazar’, is a serious chronic disease caused by Leishmania species from Leishmania (Leishmania) donovani complex, which the disease is characterized by abdominal swelling (hepatosplenomegaly) and may evolve to death in extreme cases. In this sense, the aim of our study was to assess the epidemiological profile of the cases found in Montes Claros (Minas Gerais state). A retrospective or cross-sectional study was carried out using secondary data provided by Health Information System (SINAN/HM) of Brazil from January 2010 to February 2020. Our data has shown that VL is an endemic disease in Montes Claros region, with 413 VL cases reported, 62.00% (252) male, average age ± standard deviation (years), and 93.46% (386) lived in Montes Claros city. The presence of comorbidities was observed in 13.70% (54) of the patients and in 7.26% (30). As for the evolution of the disease, 246 (59.56%) were cured, 30 (7.26%) died due to VL. Between 2010 and 2015, Glucantime® stands out, in which 46 (11.13%) patients used the drug, followed by common Amphotericin B 24 (13.48%) and liposomal Amphotericin B 38 (21.34%). In the period between 2016 and 2020, the most prevalent drug was liposomal Amphotericin B, with 71 (29.83%) patients using it, followed by Glucantime® 45 (18.9%). The condition evolved to death. We conclude that Montes Claros is still an endemic area for VL with an increased number of cases over time and a noticeable shift in patient profile towards children and young people. Joint efforts from different areas of scientific knowledge and public health services are needed to improve the effectiveness of visceral leishmaniasis surveillance and control actions. The population can contribute to this process of disease prevention and control, through educational actions in health and the environment.

Introduction: American Tegumentary Leishmaniasis (ATL), or kala azar, is a serious chronic disease caused by Leishmania spp. It is an infectious and non-contagious disease that affects both humans and several species of wild and domestic animals, presenting the clinical forms of cutaneous, mucocutaneous and diffuse cutaneous. ATL is classified as a generalized zoonotic disease that has a global impact. It is caused by protozoa of the genus Leishmania and is considered a serious public health problem. Objective: To describe the epidemiological profile of cases found in Montes Claros-MG. Methodology: An epidemiological assessment was performed based on secondary data from SINAN/MS from January 2010 to December 2015. Results: From 2010 to 2015, 286 cases of ATL were registered, with the majority of cases occurring in children under 19 years of age (31.81%) and patients over 59 years (17.83%) had a lower percentage of disease involvement. The first choice drug used by patients was Glucantime (87.06%). The most affected gender was male (52.44%) and most patients had no comorbidities (76.96%). Conclusion: In Montes Claros, Minas Gerais, ATL presented high cases during the research period. In this sense, this study guides the development of new researches that address and monitor the spread of the disease by monitoring urban areas concomitantly with the capture of animals for the presence of the parasite, thus assisting in public health decision-making in controlling the disease.

Introduction: Patient-centered care has been associated with positive results in medical practice. Objective: The aim of this study was to evaluate the attitudes of students and teachers from a Brazilian medical school regarding the physician-patient relationship and verify associated factors. Methods: This was an analytical cross-sectional study carried out in a public university, using the PPOS “Patient-Practitioner Orientation Scale” as well as a sociodemographic questionnaire. The subjects were regularly enrolled students attending the second semester of 2015 and their teachers. Mann-Whitney and Kruskal-Wallis tests were used to examine the effect of sociodemographic variables and the interaction with the scores found for students and teachers. Results: A total of 212 students were surveyed, corresponding to 57.1% of the enrolled students in the medical course. The value of the total PPOS score found for the students was 4.35 (± 0.5 SD), and the mean total score of PPOS among female students (4.43) was significantly higher than that in males (4.23) (p < 0.001), indicating more patient-centered attitudes in that group. Regarding medical teachers, 77 (56%) participated. The total score of PPOS was 4.52 (± 0.5 SD), with a more patient-centered attitude among teachers in comparison to students (4.35) (p = 0.001). However, there is a clear need for progress in both groups. Conclusion: The analysis of the students’ and teachers’ attitudes about the physician-patient relationship disclosed an unknown scenario, with more patient-centered attitudes verified among teachers despite the need for improvements by both. Further research is needed to evaluate not only the attitude but the behavior of these subjects.

Introduction: Patient-centered care has been associated with positive results in medical practice. Objective: The aim of this study was to evaluate the attitudes of students and teachers from a Brazilian medical school regarding the physician-patient relationship and verify associated factors. Methods: This was an analytical cross-sectional study carried out in a public university, using the PPOS “Patient-Practitioner Orientation Scale” as well as a sociodemographic questionnaire. The subjects were regularly enrolled students attending the second semester of 2015 and their teachers. Mann-Whitney and Kruskal-Wallis tests were used to examine the effect of sociodemographic variables and the interaction with the scores found for students and teachers. Results: A total of 212 students were surveyed, corresponding to 57.1% of the enrolled students in the medical course. The value of the total PPOS score found for the students was 4.35 (± 0.5 SD), and the mean total score of PPOS among female students (4.43) was significantly higher than that in males (4.23) (p < 0.001), indicating more patient-centered attitudes in that group. Regarding medical teachers, 77 (56%) participated. The total score of PPOS was 4.52 (± 0.5 SD), with a more patient-centered attitude among teachers in comparison to students (4.35) (p = 0.001). However, there is a clear need for progress in both groups. Conclusion: The analysis of the students’ and teachers’ attitudes about the physician-patient relationship disclosed an unknown scenario, with more patient-centered attitudes verified among teachers despite the need for improvements by both. Further research is needed to evaluate not only the attitude but the behavior of these subjects.