bluuebunny/crossref_metadata_2025 huggingface dataset:
Ergonomic risks and musculoskeletal pain in hospital cleaning workers: Convergent Care Research with mixed methods
Authors: Luz Emanuelli Mancio Ferreira da , Munhoz Oclaris Lopes , Greco Patrícia Bitencourt Toscani , Santos José Luís Guedes dos , Camponogara Silviamar , Magnago Tânia Solange Bosi de Souza
Published: June 2024

Objective: to analyze exposure to ergonomic risks and the occurrence of musculoskeletal pain in workers in the Hospital Cleaning Service. Method: Convergent Care Research, with data production designed using mixed methods, implemented with 149 hospital cleaning workers. The methodological strategy of the convergent parallel project was employed, using observation, photographic records, questionnaires and convergence groups. The results were integrated through joint display. Data analysis with descriptive and inferential statistics and content analysis. Results: the mixing of data highlighted the multifactorial nature of exposure to ergonomic risks (uncomfortable work postures; repetitive movements; prolonged orthostatism; use of equipment not adapted to the psychophysiological needs of workers) and musculoskeletal pain in the population investigated. The latter was prevalent in the lumbar spine, ankles or feet, wrists or hands, thoracic spine and shoulders. The concept of ergonomic risk was expanded and was influenced by the psychosocial aspects of work. Conclusion: the workers investigated are exposed to modifiable multifactorial ergonomic risks related to musculoskeletal pain. It is possible to promote innovations and teaching-learning actions to minimize them, such as the continuing education program, collectively constructed with recommendations for improvements.
Sitio web educativo en salud sobre cuidados domiciliarios del recién nacido: construcción, validación y evaluación
Authors: Soares Iasmym Alves de Andrade , Góes Fernanda Garcia Bezerra , Silva Aline Cerqueira Santos Santana da , Pereira-Ávila Fernanda Maria Vieira , Oliveira Gabrielle Beltrão de , Silva Maria da Anunciação
Published: June 2024

Objetivo: construir, validar y evaluar un sitio web educativo en salud sobre cuidados domiciliarios del recién nacido para uso de mujeres embarazadas, puérperas y sus familias. Método: estudio metodológico desarrollado según el modelo Analyze, Design, Develop, Implement and Evaluate . Luego de su construcción, el sitio web fue validado por 20 expertos y evaluado por 20 personas del público objetivo, y los datos analizados según el Índice de Concordancia con un punto de corte igual o superior a 0,7 (70%). Resultados: en la validación, el Índice de Concordancia para todas las cuestiones fue superior a 0,7 (70%), con una variación entre 0,75 (75%) y 1 (100%), alcanzando un valor promedio general de 0,91 (91%). En la evaluación, todos los ítems obtuvieron la máxima puntuación, con un valor medio global de 1 (100%). Conclusión: el sitio web educativo fue construido, validado y evaluado de manera satisfactoria y puede ser considerado una herramienta adecuada para su objetivo, aportando beneficios al proceso de enseñanza-aprendizaje de las familias sobre el cuidado domiciliario posparto del recién nacido por medio de su uso. Además, también se puede aplicar a la educación de estudiantes y profesionales de la salud. El sitio web está disponible para acceso libre y gratuito por medio de notebooks , computadoras, smartphones o tablets .
The allelopathic effects of aqueous Talinum triangulare (jacq.) willd extracts on the development of Lactuca sativa L. seedlings
Authors: Souza M. M. V. , Souza A. D. V. , Rodrigues A. A. , Batista P. F. , Castro S. T. , Silva I. M. H. L. , Jakelaitis A. , Costa A. C. , Sales J. F.
Published: June 2024

Abstract Plants that produce allelopathic compounds against weeds have emerged as a potential solution for the development of ecologically correct bioherbicides. Talinum triangulare is noteworthy in this regard, as its phytochemical composition encompasses flavonoids, alkaloids and other metabolites that can be used to develop inhibitory weed growth solutions. Lactuca sativa (lettuce) has been widely applied as a bioindicator species for bioherbicides and several chemicals, animal waste, water and soil quality, and atmospheric contamination, among others. In this context, this study aimed to assess the potential allelopathic effect of aqueous T. triangulare extracts on the development of L. sativa seedlings. A completely randomized design employing a 2x4 factorial scheme (shoot and root extracts) x the concentration of each extract (0, 2.5, 5, 7.5%) was applied, comprising four replications. Lactuca sativa seeds were sown on germitest papers soaked with the extracts in a germination chamber at 20°C. Physiological seed evaluations comprising the germination test, where normal and abnormal seedlings are counted on the seventh day after sowing, first normal seedling counts on the fourth day after sowing, and seedling and root length measurements. At the end of the germination test, L. sativa seedlings were separated for morphoanatomical characterizations and chlorophyll a fluorescence analyses. The T. triangulare extracts significantly influenced L. sativa root growth, with shoot extract exposure leading to more abnormal plants and lower root lengths at increasing concentrations and compared to the root extract. Root extract exposure led to evident cellular changes and lower non-photochemical quenching and unregulated dissipation quantum yields at a 5% exposure dose compared to shoot extract exposure. These findings suggest that both aqueous T. triangulare root and shoot extracts from 5% exposure doses exhibit high potential as bioherbicides, acting directly on plant structure, anatomy, quality, size and physiology.
Effect of temperature, light, seeding depth and mulch on germination of Commelina benghalensis and Richardia brasiliensis
Authors: Pereira de Moura V. G. , Salviato Vieira J. P. U. , Schedenffeldt B. F. , Silva Hirata A. C. , Monquero P. A.
Published: June 2024

Abstract One of the major limitations to proper weed management is the lack of knowledge about the biology of the species. The aim of this study was to understand the influence of temperature and light on the germination and emergence of Commelina benghalensis and Richardia brasiliensis, as well as the influence of burial depth in the soil and the presence of mulch. The experiment regarding the influence of light and temperature on germination was conducted using a 2x4 factorial design, with two light conditions (presence for 12 hours and absence for 24 hours) and four temperature alternations every 12 hours (20-25 ºC, 20-30 ºC, 20-35 ºC, and 15-35 ºC), with four replications. The second experiment was conducted in a completely randomized design with four replications, testing seven sowing depths (0.0; 0.5; 1.0; 2.0; 4.0; 6.0; 10.0 cm) in clay-textured soil. In the third experiment, millet, black oat, and sun hemp straw were placed on the surface of the pot where the weeds were sown. R. brasiliensis showed high germination rates at 15°-35°C and in the presence of light, indicating positive photoblastism, as the germination percentage was 63.50% in the presence of light and 1% without light. C. benghalensis showed higher germination rates at 20-35ºC, with a germination percentage of 46.5% under light treatment and 44% in the absence of light. R. brasiliensis exhibited the highest germination percentage at a depth of 0.5 cm, with 72.50%. C. benghalensis showed better germination at depths of 1 and 4 cm, with 48.33% and 49.16%, respectively. Both crotalaria and millet caused significant inhibition of germination in both weed species. R. brasiliensis and C. benghalensis exhibit higher seed germination under alternating temperatures, with R. brasiliensis displaying positive photoblastism and C. benghalensis being neutral. Greater seeding depths negatively influence germination, and cover crops such as crotalaria and millet can be used to suppress these weeds.
Is there only one species of Hepatozoon infecting Brazilian caimans? Integrative taxonomy unveiling the parasite’s diversity
Authors: Úngari L. P. , Netherlands E. C. , Santos A. L. Q. , Viana L. A. , da Silva R. J. , O’Dwyer L. H.
Published: June 2024

Abstract Hepatozoon spp. are the most common haemoparasites reported from reptiles around the world, however, only six species have been described infecting crocodilians. In Brazil, Hepatozoon caimani Carini, 1909 is currently the only recognized species from the caiman hosts. This study provides new data on the diversity of species of Hepatozoon infecting Caiman crocodilus (Linnaeus) using molecular data and phylogenetic analysis, with additional support of morphological data of developmental stages from host blood and tissue. Forty-four individuals were collected and screened for haemogregarines, and blood and tissue samples were analysed by light microscopy with 31 (70.45%) infected. Hepatozoon spp. blood developmental stages included immature and mature gamonts with or without cytoplasmic vacuoles and free gamonts. Additionally, merogonic developmental stages were found in the liver and spleen of infected hosts. Based on the morphological and molecular data, this study identified two possible different species of Hepatozoon, being one of them the H. caimani with intragenotypic divergence.
Soybean grown in lowland rice areas to reduce weed infestation
Authors: Cardoso Filipe C. , Schelter Mayra L. , Jastrombek Jessiane M. , Silva Leonardo M. da C. , Ambrasson Anderson G. , Guerra Naiara , Oliveira Neto Antonio M. de
Published: June 2024

ABSTRACT Lowland rice in Santa Catarina (SC), Brazil, is grown as a sole crop, which has aggravated problems with weeds. In this context, the objective of this study was to evaluate the efficacy of weed management systems in soybean crops to decrease weed infestation in lowland rice production areas, using pre- and post-emergence herbicides. The experiment was conducted in Turvo, SC, from August 2021 to April 2022. A randomized block design with four replications was used, in a 6 × 5 factorial arrangement. The factors consisted of six pre-emergence herbicides treatments (S-metolachlor, diclosulam, sulfentrazone, sulfentrazone + diuron, pyroxasulfone + flumioxazin, and a control without herbicide), and five post-emergence herbicide treatments: control without herbicide, glyphosate at two rates (930 and 1,550 g a.e. ha-1), applied alone or in combination with clethodim. The herbicide sulfentrazone caused persistent phytotoxicity and resulted in the lowest soybean grain yield. The herbicide S-metolachlor was ineffective in controlling weed species, except barnyard grass, even when combined with post-emergence application. The poor control of these weed species does not result in significant interference, causing no significant decreases in grain yield of soybean crops grown in floodplain soils. The use of S-metolachlor, diclosulam, and pyroxasulfone + flumioxazin, combined with post-emergence application of glyphosate (930 g a.e. ha-1), resulted in highly effective control of barnyard grass, inhibiting weed seed production. Only the combination of glyphosate (1,550 g a.e. ha-1) with clethodim can suppress barnyard grass seed production without using pre-emergence herbicides.
INFECÇÃO EXPERIMENTAL DE HAMSTER COM MYCOBACTERIUM AVIUM: INFLUÊNCIA DA GESTAÇÃO, PARIÇÃO E LACTAÇÃO NA ELIMINAÇÃO DO AGENTE PELAS FEZES
Authors: Balian S.C. , Oliveira E.M.D. , Pinheiro S.R. , Guerra J.L. , Morais Z.M. , Ferreira F. , Ferreira Neto J.S.
Published: June 2024

RESUMO O presente trabalho teve por objetivo verificar se uma situação de estresse (gestação, parição e lactação) implica na reativação de lesão entérica causada pela inoculação oral de Mycobacterium avium em hamster e retorno à condição de fonte de infecção, com elimação do agente através das fezes. Foram utilizadas 24 hamsters fêmeas, as quais foram inoculadas com Mycobacterium avium, via oral, com a dose de 2,0 mg/animal. Em 45 oportunidades - do primeiro ao 229º dias pósinoculação - uma amostra de fezes de cada um dos animais foi colhida para exame bacteriológico. Aos 183 dias pós-inoculação, 10 hamsters machos foram introduzidos nas gaiolas de 10 fêmeas para o acasalamento. Desses 10 acasalamentos, sete resultaram em parição. O período médio entre o contato com o macho e a parição foi de 17 dias e entre a parição e o desmame foi de 30 dias. Observou-se que a situação de estresse simulada - gestação, parição e lactação não foi capaz de reativar as lesões intestinais. Esses resultados, obtidos com a utilização de modelo biológico hamster-Mycobacterium avium, foram discutidos com vistas ao controle das micobacterioses em suínos.
AVALIAÇÃO DA PROVA DE IMUNOPEROXIDASE COMO RECURSO DIAGNÓSTICO NA LEPTOSPIROSE ANIMAL
Authors: Haanwinckel M. C.S. , Megid J. , Souza L.C.
Published: June 2024

RESUMO O presente trabalho teve por objetivo avaliar as técnicas de imunoperoxidase indireta comparativamente à impregnação pela prata (Warthin Starry), e isolamento bacteriano em hamsters, visando sua utilização em tecidos provenientes de animais suspeitos de leptospirose. Foram utilizados 60 hamsters adultos distribuídos em grupo A constituído por 40 hamsters inoculados com a Leptospira pomona e grupo B composto por 20 animais não inoculados. Os animais de ambos grupos foram submetidos ao isolamento bacteriano, imunohistoquímica em cortes e impressões em lâminas, coloração através da técnica de Warthin Starry e através da coloração pela Hematoxilina-Eosina. As técnicas imunohistoquímicas apresentaram elevada sensibilidade (100%) e especificidade (100%) em detectar o agente nos tecidos renais dos hamsters infectados, entretanto em cortes histológicos a preservação da arquitetura celular favoreceu a integridade estrutural do antígeno quando comparados as impressões em lâminas. A técnica de Warthin Starry também apresentou elevada sensibilidade, embora não seja considerada técnica sorovar específica. Com cerca de 77,5% de amostras positivas, resultados de cultivo apresentaram-se inferiores às técnicas descritas acima quanto à sensibilidade em detectar leptospiras provenientes de tecidos renais.
HELMINTOS PARASITOS DE CAPIVARA (HYDROCHOERUS HYDROCHAERIS L. 1766) NA REGIÃO DE ARAÇATUBA, SÃO PAULO, BRASIL
Authors: Sinkoc A.L. , Brum F.A. , Muller G. , Brum J.G.W.
Published: June 2024

RESUMO A ocorrência de helmintos parasitos do trato gastrintestinal de capivaras na região de Araçatuba, Estado de São Paulo é apresentada. Sete animais foram analisados sendo encontradas nove espécies de helmintos, com suas respectivas prevalências: Capillaria hydrochoeri (100,00%), Vianella hydrochoeri (100,00%), Protozoophaga obesa (85,71%), Strongyloides sp. (28,57%), Habronema sp. (42,86%), Monoecocestus hydrochoeri (28,57%), M. hagmani (42,86%), Taxorchis schistocotyle (42,86%) e Hydrochoeristrema cabrali (28,57%).
AGROTÓXICOS USADOS NA CULTURA DO ALGODÃO: EFEITO NA ATIVIDADE DAS ENZIMAS DESIDROGENASE E ARILSULFATESE DO SOLO*
Authors: Peres T.B. , Andréa M.M. , Luchini L.C.
Published: June 2024

RESUMO Algumas culturas, como o algodão, necessitam de tratamentos com diferentes agrotóxicos para controle de pragas. Estes compostos atingem o solo e podem afetar a microbiota provocando mudanças nas atividades de ciclagem de nutrientes e conseqüentemente, na fertilidade dos solos. A influência dos vários agrotóxicos utilizados em algodão foi estudada sobre a atividade microbiológica de solo Gleissolo de área do campo experimental do Instituto Biológico, SP, que foi subdividida em duas subáreas, e em solo Nitossolo Vermelho Distrófico coletado de área da Estação Experimental do Instituto Agronômico, Tatuí, SP, todas sob plantio de algodão. Os estudos de atividade microbiológica do solo foram realizados por meio de medidas da atividade das enzimas desidrogenase (DHA) e arilsulfatase por quantificação de formazan e p-nitrofenol, respectivamente. A atividade da DHA no Gleissolo variou de aproximadamente 90,7 a 218,7 µg de formazan g-1 solo na subárea sem tratamento e de 87,7 µg g-1 solo após aplicação de carbaril a 258,8 µg g-1 solo após tratamento com monocrotofós na subárea tratada com os agrotóxicos. No Nitossolo Vermelho Distrófico, a variação da DHA foi de 33,3 µg formazan g-1 solo no primeiro período entre plantios a 103,8 µg g-1 solo após aplicação da mistura de paration metílico + deltametrina. A atividade da arilsulfatase variou aproximadamente de 0,75 a 9,76 µg p-nitrofenol g-1 solo na subárea sem tratamento de São Paulo e de 3,8 µg g-1 solo após tratamento com carbaril a 11,6 µg g-1 solo também após tratamento com monocrotofós. No solo de Tatuí a atividade desta enzima variou de 0 no período entre plantios a 3,81 µg g -1 solo após aplicação de paration metílico. Verificou-se que os agrotóxicos atuaram diferentemente nos 2 tipos de solo, ora inibindo, ora estimulando a atividade das enzimas estudadas.
APHAERETA SP. (HYMENOPTERA: BRACONIDAE) COMO PARASITÓIDE DE SARCODEXIA LAMBENS (WIEDEMANN) (DIPTERA: SARCOPHAGIDAE) NO BRASIL
Authors: Marchiori C.H. , Silva Filho O.M. , Lima L.L.F. , Campos G.T. , Silva J.M. , Lopes A.F. , Fidelis J.O.
Published: June 2024

RESUMO O objetivo do presente estudo é relatar a primeira ocorrência do parasitóide Aphaereta sp. (Hymenoptera: Braconidae) como inimigo natural de Sarcodexia lambens (Wiedemann) (Diptera: Sarcophagidae). Para coleta dos insetos foi utilizado como isca fígado bovino. Obtiveram-se 37 pupas de S. lambens, das quais, três originaram parasitóides pertencentes à espécie Aphaereta sp. A prevalência de parasitismo foi de 8,1%.
ISOLATION OF LEPTOSPIRA SPP. FROM KIDNEYS OF SHEEP AT SLAUGHTER
Authors: Azevedo S.S. de , Alves C.J. , Andrade J.S.L. de , Santos F.A. dos , Freitas T.D. , Batista C. de S.A.
Published: June 2024

ABSTRACT Attempts were made to isolate leptospires from kidneys of sheep slaughtered in the public slaughterhouse of the city of Patos, Paraíba state, Northeast region of Brazil. Kidneys from 80 sheep without clinical signs of leptospirosis were used. The Ellinghausen-McCullough-Johnson-Harris (EMJH) medium modified with the addition of 10% rabbit serum was used for leptospira isolation. Renal tissue samples were taken by renal perforation with a sterile Pasteur pipette after superficial cauterization. The cultures were observed weekly by dark field microscopy for up to 16 weeks. With this methodology, Leptospira spp. could be isolated from four renal tissue samples.
Dados de pesquisa na Arquivologia: uma reflexão
Authors: Gava Tânia Barbosa Salles , Flores Daniel , Aleixo Diana Vilas Boas Souto , Cristovão Henrique Monteiro , Ferrari Luciana Itida , Moraes Margarete Farias de
Published: June 2024

Resumo: Este artigo tem como objetivo fazer uma reflexão sobre os dados de pesquisa no contexto da Arquivologia e a importância da produção, gestão, transmissão e preservação dos dados em ambientes adequados, mantendo uma cadeia de custódia digital segura e ininterrupta para que os dados se mantenham autênticos e confiáveis ao longo do tempo, com fins de reuso. Trata-se de uma pesquisa de natureza qualitativa, do tipo exploratória, que fez uso da pesquisa bibliográfica e documental. O artigo apresenta semelhanças e diferenças nas definições dos conceitos relacionados ao contexto dos Repositórios Arquivísticos Digitais Confiáveis, para acervos documentais, e dos Repositórios de Dados Científicos, para conjuntos de dados, e sobre a importância da interoperabilidade entre eles, uma vez que cada tipo de repositório possui suas especificidades. O artigo reflete a importância da gestão, preservação, acesso e reuso dos documentos arquivísticos digitais em formato de dados, tanto para reuso quanto para apoio aos gestores em suas tomadas de decisão, destacando a importância dos Planos de Gestão de Dados. Concluímos que embora semelhantes, muitos conceitos diferem quando aplicados no contexto dos Repositórios Arquivísticos Digitais Confiáveis e dos Repositórios de Dados Científicos; que a Arquivologia precisa se atentar para os documentos arquivísticos digitais em formato de dados; e que a interoperabilidade entre os Repositórios Arquivísticos Digitais Confiáveis e Repositórios de Dados Científicos trará muitos benefícios aos consumidores dessas informações.
Perceived workplace discrimination by South American immigrants in Chile: A quantitative study in a large sample
Authors: Berríos-Riquelme José , Castillo-Rozas Gustavo , Grau-Rengifo Olaya
Published: June 2024

Abstract South American immigrants in Chile constantly suffer workplace discrimination, which is usually related to different variables that are inherent to their immigration process. The objective of this article was to evaluate perceived workplace discrimination by South American immigrants in Chile. A cross-sectional design with a descriptive scope was used, where the final sample was made up of 612 South American immigrants of legal age who have been living in the country for more than a year. The results indicate that immigrants who perceive more discrimination in the workplace are those who mainly interact with foreigners from a third nationality. Finally, the discussion is presented, contrasting the results with the theoretical framework, weaknesses and strengths of the study are analyzed, and future lines of research are suggested.
Fronteras y migraciones dentro de ámbitos metropolitanos. Reflexiones a partir del caso de Colonia Juárez en Ciudad de México
Authors: Matossian Brenda
Published: June 2024

Resumen Las personas migrantes no sólo cruzan fronteras entre jurisdicciones estatales. En las ciudades en las que permanecen también se enfrentan a diversos tipos de fronteras “otras”, materiales y simbólicas, que atraviesan sus experiencias. Se indaga sobre la configuración de fronteras vinculadas a la presencia de migrantes recientes, más específicamente personas desplazadas solicitantes de refugio, en el espacio público del Parque Giordano Bruno en el área central de la Ciudad de México (Colonia Juárez), desde una perspectiva que prioriza las técnicas cualitativas. Los procesos de fronterización identificados se vinculan tanto con las políticas públicas migratorias como con las tensiones centro-periferia producto de las lógicas capitalistas que transforman la metrópolis. Para las personas migrantes en búsqueda de su preservación, el agrupamiento se torna una estrategia para sobrevivir, esperar y espacializar su presencia en áreas centrales de la ciudad donde se procuran estos micro-espacios de refugio temporario.
POTIRA E SABINA: ESCRAVIDÃO, GÊNERO E INDIANISMO NA POESIA DE MACHADO DE ASSIS
Authors: MUNDIM LARISSA
Published: June 2024

Resumo Autor de personagens femininas aclamadas pelos leitores, Machado de Assis criou mulheres que suscitam o debate de gênero realizado pela crítica literária. Neste artigo, meu objetivo é analisar Potira e Sabina, duas personagens femininas machadianas da coletânea poética Americanas (1875), uma indígena e outra africana, pela ótica das discussões sobre escravidão, raça e gênero no Brasil Imperial. O tema das duas poesias dialoga com o debate acerca da Lei do Ventre Livre (1871), que apontou para o possível fim da escravidão no Brasil - mostrando que o poeta estava afinado com as principais questões oitocentistas em torno dos três temas citados.
PROFESSORES DE ADOLESCENTES EM CONFLITO COM A LEI: RECURSOS, DIFICULDADES E PERCEPÇÕES
Authors: Santos Ana Luiza Mendonça dos , Elias Luciana Carla dos Santos
Published: June 2024

RESUMO Adolescentes que cumprem medida socioeducativa de liberdade assistida têm a frequência escolar como uma obrigação. Nesse cenário, o professor tem papel central na promoção de relações proximais que auxiliem esses alunos. Objetivou-se caracterizar os recursos e as dificuldades relatadas por professores quanto ao processo de ensino-aprendizagem de adolescentes em liberdade assistida. Participaram 10 professores de alunos em liberdade assistida, de escolas públicas de uma cidade do interior paulista, os quais responderam a uma entrevista semiestruturada. As análises foram pautadas na técnica do Discurso do Sujeito Coletivo, apontando os recursos dos professores quanto ao planejamento, à didática e ao estabelecimento de vínculos; como dificuldades foram relatadas a ausência da família na escola, as lacunas de aprendizado e a não valorização da educação. Conclui-se como importantes intervenções que potencializem as habilidades sociais educativas de professores e promovam relações entre os microssistemas família e escola do alunado em liberdade assistida.
TEACHERS OF TEENAGE STUDENTS IN CONFLICT WITH THE LAW: RESOURCES, DIFFICULTIES, AND PERCEPTIONS
Authors: Santos Ana Luiza Mendonça dos , Elias Luciana Carla dos Santos
Published: June 2024

ABSTRACT Adolescents who comply with a socio-educational measure of probation have to attend school as an obligation. In this scenario, the teacher has a central role in promoting close relationships that help these students. The objective was to characterize the resources and difficulties reported by teachers regarding the teaching-learning process of adolescents on probation. Ten teachers of students on probation participated, from public schools in a city in the countryside of the state of São Paulo, who provided answers to a semi-structured interview. The analyzes were based on the Collective Subject Discourse technique, pointing out the teachers’ resources regarding planning, teaching, and establishing bonds; as the difficulties reported were the family’s absence at school, learning gaps and the lack of value for education. It is concluded that interventions that enhance the teachers’ social educational skills and promote relationships between the family and school microsystems of students on probation are important.
Foliar plasticity of Erythroxylum tortuosum (Erythroxylaceae) in the Cerrado: a representative neotropical genus with medicinal importance
Authors: Dias Mariana Virginia de Freitas , Silva-Sene André Maciel da , Gavilanes Manuel Losada , Lira Marinês Ferreira Pires
Published: June 2024

Abstract Erythroxylum is common in the Brazilian Cerrado. Species from this genus have ecological, pharmacological and popular medical importance. Based on this information, the aims of this study was to perform a descriptive and quantitative morphoanatomical study of Erythroxylum tortuosum leaves present in two environments: cerrado sensu stricto and campo rupestre. To carry out these studies, 24 fully developed leaves were collected and fixed from individuals across both environments. For the quantitative anatomy study, the following measurements were made: leaf area, length, width and mass; stomatal density; polar and equatorial diameter of the stomata; thickness of the leaf blade, mesophyll, epidermis and cuticles on the adaxial and abaxial surfaces; and thickness of the spongy and palisade parenchyma; specific leaf area, leaf mass area and foliar tissue density. This species shows a bald and uniseriate epidermis when viewed in cross section. Stomata are paracytic and occur only on abaxial surfaces. The mesophyll is dorsiventral type, with a dense vascular system, and the vascular bundle is collateral type. The general pattern of the veins is pinnate camptodrome and brochidodrome, with dense veins and pseudosecondary ribs. Significant differences were found for almost all analysed variables, suggesting that different environmental conditions may influence plant development.
Vocal and emotional aspects related to restriction of singing activities in amateur choralists
Authors: Andrade Yasmim Pereira de , Nascimento Maiara Alves do , Almeida Anna Alice , Oliveira Priscila
Published: June 2024

ABSTRACT Purpose To investigate the association between measures of voice handicap, symptoms of common mental health disorders and the restriction of singing activities that occurred during the Covid-19 pandemic in amateur choristers. Methods This is a cross-sectional, analytical, descriptive and quantitative study. To collect data were used an initial characterization questionnaire, the Modern Singing Handicap Index (MSHI) protocol and the SRQ-20, an adaptation of the Self Reporting Questionnaire, all of which were made available online. The research sample consisted of 46 participants belonging to amateur choirs from two higher education institutions. Results The mean total score for the MSHI and SRQ-20 were high and were positively correlated with each other. There was no difference between the MSHI and SRQ-20 scores between individuals who self-reported Covid-19 infection or not. Individuals who stated that the answers offered in the survey were influenced by the social restrictions caused by the pandemic had higher scores than those who did not make this statement. There was no correlation with singing time and voice handicap and the presence of symptoms of mental health disorders, measured by the MSHI and SRQ-20, respectively. Choristers who maintained their singing activities individually or collectively showed less vocal and emotional damage. Conclusion Amateur choristers reported voice disadvantage and common mental health disorders possibly related to social restrictions caused by the Covid-19 pandemic. The observed rates, however, do not seem to be associated with the virus infection itself, but with the limitations imposed by social restrictions during the pandemic period.
Cardiovascular changes during the six-minute walk test in COPD patients
Authors: Nicoletti Márcia , Costa Cássia Cinara da , Silva Luciano Dondé da
Published: June 2024

Abstract Introduction Specialised literature demonstrates that chronic obstructive pulmonary disease (COPD) has patho-physiological changes that impair cardiac autonomic function and the ability of the cardiovascular system to respond to stimuli. Objective To analyze the correlation between heart rate (HR), peripheral oxygen saturation (SpO2), functional and pulmonary capacity in patients with COPD during the six-minute walk test (6MWT) before and after the pulmonary rehabilitation program (PRP). Methods This is a descriptive and retrospective study, with collection carried out in the PRP database of a university in Vale dos Sinos, Brazil. Results: The sample consisted of 216 patients, classified as having severe COPD, with a predominance of males (57.4%), with a mean age of 65.4 ± 7.9 years. The results showed that at the pre-PRP moment, the HR at the end of the test showed a strong negative correlation (p < 0.01) with SpO2 obtained at the end of the test, and forced expiratory volume in the first second (FEV1). At the post-PRP moment, the HR at the end of the test was strongly negatively cor-related with SpO2 and FEV1 positively, weakly (p < 0.05) with the sensation of dyspnea at the end of the test, and strongly with the distance covered in the 6MWT (6MWD). Conclusion The correlations between HR, FEV1, 6MWD, dyspnea and SpO2 were confirmed, making it evident that as the variables change, HR changes occur to meet the metabolic, oxygenation and ventilatory demands.
NON-ALCOHOLIC FATTY LIVER DISEASE AND EXTRA-HEPATIC CANCER: A NARRATIVE REVIEW
Authors: REZENDE Achiles Queiroz Monteiro de , CAZZO Everton
Published: June 2024

ABSTRACT Background: Recently, significant associations between non-alcoholic fatty liver disease (NAFLD) and extra-hepatic cancer have been reported. Objective: To carry out a comprehensive review of the current evidence in the literature on the association between NAFLD and extra-hepatic cancer. Methods: A narrative literature review was performed through an online search for the MeSH terms “fatty liver” and “cancer” in MEDLINE (via PubMed) and LILACS (via BVS). Original studies that described the impact of NAFLD on different types of extra-hepatic malignancies were included. Results: After careful analysis, nine prospective cohort studies, one retrospective cohort study, three case-control studies, and three cross-sectional studies were selected. Conclusion: There is consistent evidence on the association between NAFLD and extra-hepatic carcinogenesis, especially in relation to colorectal, gastric, pancreatic, breast, prostate, and bladder cancers.
SKELETAL HEALTH ASSESSMENT IN BRAZILIAN MEN WITH CELIAC DISEASE AT DIAGNOSIS: HOW IMPORTANT IS IT?
Authors: KOTZE Lorete Maria da Silva , SKARE Thelma Larocca , KOTZE Luiz Roberto , NISIHARA Renato
Published: June 2024

ABSTRACT Background: Low bone mass density (BMD) is an extraintestinal finding in celiac disease (CD). This may result in bone fractures leading to loss in quality of life. Objective: To assess BMD in male CD patients at diagnosis according to the patient’s age. Methods: Descriptive retrospective carried out during the period between 2013 and 2023 in a single office that studied dual-energy X-ray absorptiometry (DXA) results in 28 male patients with a recent diagnosis of CD, divided into three groups: group 1 (age up to 18 years); group 2 (from 19 to 49 years of age) and group 3 (over 50 years of age). Were studied demographic and anthropometric parameters, time delay between symptoms onset and CD diagnosis and fracture occurrence. Results: Celiac patients studied had median age 36.0 years (IQR=16.5-50.7). Among them, 39.3% had osteopenia and 14.3% had osteoporosis. Only 36% of the sample had normal DXA values (group 1 with 37.5%; group 2 with 46% and group 3 with 14.2%). No pathological fracture was observed in this sample. CD diagnosis delay observed had median 1.0 year (IQR=1.0-4.7). When the number of individuals with normal and abnormal DXA results were compared, there was no difference in body mass index, time of diagnosis delay or Marsh classification (P=0.18). Conclusion: Male patients at the time of CD diagnosis showed a high prevalence of low BMD, which was particularly evident in individuals over 50 years of age.
PERCUTANEOUS CHOLANGIOSCOPY AND LASER BILIARY LITHOTRIPSY FOR BILIARY INTRAHEPATIC STONES MANAGEMENT: CASE REPORT
Authors: AGUIAR Alan Junior de , MOREIRA Paula Heroso , CUNHA Fernanda Biasi da , BACARIN João Vitor , SANTINI Pedro Henrique Batista , BONIN Eduardo Aimore
Published: June 2024

ABSTRACT Intrahepatic biliary stone disease is a difficult condition to treat, due to anatomical complexity of biliary tract, association with colestasis, and high recurrence rates, with potential short- and long-term complications, such as cholangitis and secondary biliary cirrhosis. Removal of biliary stones via intraductal access can be achieved endoscopically or percutaneously, with preference for cholangioscopy-guided laser lithotripsy in complex cases. The surgical approach, despite its prolonged results, is a more invasive and risky procedure. The authors present a case of cholangioscopy with percutaneous laser biliary lithotripsy as an option for the treatment of intrahepatic biliary stone disease associated with biliary stricture following biliodigestive anastomosis due to bile duct injury following cholecystectomy, a safe and effective alternative with low morbidity and satisfactory outcomes in follow-up.
Mulheres muçulmanas e cuidado em saúde mental: Reflexões a partir da série 8 em Istambul
Authors: Paiva Camila Motta , Pasqualin Flávia Andréa , Barbosa Francirosy Campos
Published: June 2024

Resumo Apesar do crescente interesse pela dimensão da religiosidade na área da saúde, muçulmanos têm sido negligenciados pelo campo psi. Por um lado, profissionais pouco conhecem essa religião e seus seguidores; por outro, a população muçulmana cresce tanto pelas reversões quanto por imigração/refúgio, e adentra nas clínicas psicológicas. Para suprir tal descompasso, este artigo tem como objetivo apresentar pontos de atenção a serem considerados quando se trata da saúde mental de mulheres muçulmanas e das especificidades do cuidado direcionado a elas. Para tanto, tomou-se como disparador a série turca 8 em Istambul, que expõe os meandros de um atendimento psicológico a uma mulher muçulmana que usa hijab, o véu islâmico. A análise do corpus fez emergir três eixos reflexivos, que apontam: (1) a necessidade de psicoeducação da comunidade muçulmana diante das tensões e dos estigmas cristalizados; (2) o etnocentrismo e a islamofobia como obstáculos ao processo psicoterapêutico; e (3) a importância da escuta sensível para uma prática psicológica aberta à diversidade cultural-religiosa. Este estudo, em confluência com pesquisas etnográficas conduzidas em campo islâmico brasileiro, permite destacar possibilidades, desafios e aspectos éticos da relação entre religião e cuidado em saúde mental.
Germinal Rodríguez: salud pública, política y divulgación sanitaria en primera persona, Argentina, 1922-1960
Authors: Rayez Federico
Published: June 2024

Resumen Este trabajo reconstruye la trayectoria del médico argentino Germinal Rodríguez en diálogo con la historia social de la salud y la enfermedad y con una reciente corriente historiográfica de biografías médicas. En base a una metodología cualitativa de análisis documental, analizamos expedientes oficiales de la Universidad de Buenos Aires, fuentes periodísticas, libros de Rodríguez y otras fuentes secundarias. Como resultado, podemos afirmar que su vida profesional estuvo marcada por la enseñanza universitaria y una exitosa carrera académica, así como por su intensa militancia socialista entre 1920-1930. Rodríguez fue también un divulgador, un experto de consulta en políticas públicas para su partido y funcionario estatal en los años del peronismo.
Evaluation of the efficacy of entomopathogenic nematodes on Ctenocephalides felis felis larvae (Siphonaptera: Pulicidae)
Authors: Souza Ana Caroline Ferreira de , Silva Danielle Pereira da , Monteiro Sobrinho Américo de Castro , Bittencourt Vânia Rita Elias Pinheiro , Bittencourt Avelino José , Correia Thaís Ribeiro , Chambarelli Melissa Carvalho Machado do Couto
Published: June 2024

Abstract Ctenocephalides felis felis is a relevant and widely distributed ectoparasite that acts as a vector of disease-causing pathogens. Moreover, it is responsible for economic losses due the use of harmful chemicals to the environment and that favor the emergence of insecticide-resistant populations. Research on entomopathogenic nematodes may open up an alternative route to the insect chemical control. The present study aimed to evaluate the killing efficacy of Heterorhabditis bacteriophora (HP88) against C. felis larvae in 400 μL, 600 μL and 1000 μL of suspension containing 120, 160 and 200 infective juveniles/larva and 600 μL of suspension containing the same concentrations of Heterorhabditis indica (LPP30), divided into two groups (absence and presence of diet) and a control group with three replications containing only distilled water. In the bioassay with H. bacteriophora, the groups in 600 μL of suspension showed higher mortality rates than those in the other tested volumes, which were above 80% at all concentrations. On the other hand, H. indica achieved mortality rates above 70% at all concentrations used. Results indicate that flea larvae are susceptible to in vitro infection by H. bacteriophora and H. indica.
Effect of modifiers on the structure formation and properties of nickel-phosphorus coatings applied to powder steels
Authors: Shcherbakov I. N. , Gasanov B. G.
Published: June 2024

The paper shows the effect of solution temperature on the deposition rate of applying composite nickel-phosphorus coatings modified with boron nitride and polytetrafluoroethylene to powder samples made of improved P40, P40Kh and P40KhN steels obtained by hot stamping of porous sintered blanks. It has been experimentally established that within the range of 70–90 °C, the average deposition rate of modified BN and (C2F4)n coatings is 15–19 μm/h, while the chemical composition of the improved steels and the surface configuration of the samples have no effect on the coating build-up rate. The mechanism of the formation of the structure and properties of nickel-phosphorus coatings (NiPC) without additives and those of NiPC modified with boron nitride and polytetrafluoroethylene during deposition, sintering and running-in is revealed. It has been established that immediately after deposition, Ni–P coating has an amorphous structure with inclusions of nickel particles, and its microhardness does not exceed 380–390 MPa with no modifiers added. In the dry friction mode at the running-in stage, Ni12P5 and Ni2P phases are formed in the modified Ni–P coatings, allowing to improve their tribological properties, and in the steady-state mode, the phase disordering of the modified NiPC proceeds. It has been experimentally revealed that the coefficient of friction and wear decrease by 1.3 times when only (C2F4)n is introduced into Ni–P coating, these indices decrease by 1.6 times when only BN is added, and they decrease almost twice when BN and (C2F4)n are introduced together. It has been established that upon the combined (complex) modification of NiPC with BN and (C2F4)n after the heat treatment, there is almost no nickel oxide phase, nickel boride of NiB type is formed in the coating during running-in, and its content does not decrease when entering the stationary friction mode, thus increasing tribotechnical properties of the coating. During running-in, the coefficient of friction of Ni–P + BN + (C2F4)n coating decreases from 0.28 to 0.19, and the wear rate of such a coating in the stationary friction mode is 1.5 mg/h. The efficiency of applying the antifriction nickel-phosphorus coatings modified with BN + (C2F4)n to the products made of the improved structural steels obtained by various methods has been theoretically and experimentally substantiated.
Investigation of the tribological characteristics of Ta–Zr–Si–B–C–N coatings
Authors: Sytchenko A. D. , Vakhrushev R. A. , Kiryukhantsev-Korneev Ph. V.
Published: June 2024

Ta–Zr–Si–B–C–N coatings were deposited by magnetron sputtering using a TaSi2–Ta3B4–(Ta, Zr)B2 composite target. Ar, as well as Ar + N2 and Ar + C2H4 gas mixtures, were used as the working gas. The structure and composition of the coatings were studied by scanning electron microscopy, glow-discharge optical emission spectroscopy, and X-ray diffraction. A Calowear tester was used to measure the thickness and abrasion resistance of the coatings. Erosion resistance tests were carried out using a UZDN-2T (Russia) ultrasonic disperser. Tribological tests in the sliding friction mode were carried out on an HT Tribometer (CSM Instruments, Switzerland) automated friction machine. The wear zone after tribological testing was examined using a Veeco Wyko 1100 (Veeco, USA) optical profiler. The results showed that the Ta–Zr–Si–B coating was characterised by a columnar structure with an h-TaSi2 crystallite size of 11 nm. The introduction of nitrogen and carbon into the composition of the coatings led to the suppression of columnar growth and a ~2–4-fold decrease in the size of h-TaSi2 crystallites. Carboncontaining coatings demonstrated the best abrasive resistance. The sliding friction tests showed that the Ta–Zr–Si–B coating is characterised by a stable coefficient of friction of 0.3 at a temperature of 25 °C up to the maximum working temperature of 250 °C. The introduction of nitrogen led to an increase in the coefficient of friction up to 0.8–1.0 at a t = 50÷110 °С. The coating with the minimum carbon concentration showed a stable coefficient of friction of ~0.3 up to a maximum temperature of 250 °C. The best result was demonstrated by the sample containing the maximum amount of carbon, with its coefficient of friction remaining at the 0.25 level up to a temperature of 350 °C.
Influence of thermomechanical treatment on the formation of the structure in dispersed-reinforced aluminum alloy-based metal composite materials
Authors: Nyafkin A. N. , Kosolapov D. V. , Kurbatkina E. I.
Published: June 2024

The study explored various facets of the structure of dispersed-reinforced aluminum alloy-based metal composite material (MCM) under different modes of thermomechanical treatment. Replacing traditional structural materials with MCM provides manufacturers with an opportunity to achieve higher levels of engineering superiority. The ability to choose composition, modify primary component ratios, and employ a range of MCM manufacturing techniques allows for precise tuning of the material's strength, rigidity, temperature range, and other physical and mechanical properties. Two prevalent technologies for crafting dispersed-reinforced aluminum alloy-based MCM exist: liquid-phase and powder technologies. Liquid-phase methodology entails merging the reinforcing component into the binder alloy's melt, followed by crystallization. This process guarantees the dispersion and fixation of reinforcing particles within the binder volume. In contrast, powder technology involves simultaneous processing of primary component powders in high-energy mills, with subsequent amalgamation of the resultant composite granules via pressure molding. The chief aim of thermomechanical treatment lies in yielding blanks that closely mimic the final product's geometry and reshaping the deformable material's structure to heighten its strength properties. Powder technology was employed to fabricate monolithic composite material samples. Their structures were analyzed, accompanied by tests to ascertain density and strength parameters of the MCM at room temperature. Consequently, dispersed-reinforced aluminum alloy-based MCM possessing a uniform structure, density exceeding 99.0 % of the theoretical value, and elevated mechanical attributes: σu = 300÷305 MPa and E = 87÷95 GPa, were successfully produced.
A cisheteronormatividade e a diversidade dos arranjos familiares: considerações à Terapia de Família Sistêmica
Authors: De Carvalho Vanessa Azambuja , Nardi Henrique Caetano
Published: June 2024

INTRODUÇÃO: Neste artigo, buscamos articular questões referentes à Terapia de Família Sistêmica (TFS), estudos de sexualidade e gênero, perspectiva decolonial e interseccionalidade. Expomos como podemos pensar a partir destas problematizações as experiências familiares de pessoas que se situam no avesso ou nas margens da cisheteronormatividade e discutir sobre a diversidade que compõe a família, para além de uma visão restritiva deste termo. OBJETIVO: Fazer uma crítica construtiva à TFS, apontando o apagamento que esta disciplina possui em relação às vivências de pessoas LGBTQIAP+ (lésbicas, gays, transexuais e travestis, queer, intersexo, assexuais, pansexuais e demais orientações sexuais e identidades de gênero). METODOLOGIA: O artigo possui caráter ensaístico e sustentado em um material empírico oriundo de entrevistas de caráter biográfico/trajetórias de vida. Propomos aqui a perspectiva queer e decolonial, aliada à interseccionalidade como estratégia de análise de histórias de vida a fim de compreender os arranjos familiares de mulheres lésbicas, bissexuais e pansexuais. RESULTADOS: As entrevistadas demonstraram múltiplas realidades, baseando-se tanto em vivências de violência quanto de aceitação em suas famílias de origem, focando suas jornadas na construção de laços de apoio com suas famílias escolhidas, criando relações de irmandade entre amigas. CONCLUSÕES: A TFS poderia ampliar seu olhar e escrita sobre a população LGBTQIAP+, utilizando-se da decolonialidade/perspectiva queer e interseccionalidade como potente guia de análise das relações familiares, visto que as histórias de vida dessas mulheres concentram-se em lidar com discriminações e desafios associados aos seus diversos marcadores sociais da diferença.
Mandating patient and public involvement in research: is it cause for concern?
Authors: Norton Michael John
Published: June 2024

BACKGROUND: Public and Patient Involvement [PPI] is a relatively new concept within the field of research. However, it involves a process whereby service users/patients are involved in every step of the research process. Recently, The Lancet Psychiatry and the Journal of Mental Health released a mandate for all future submissions to have PPI representation clearly documented in the manuscripts. This, although welcome, raises the fear of tokenistic practices in research production and dissemination. This has resulted in a space of contentious fluidity developing as researchers and indeed PPI representatives struggle to ascertain what exactly PPI is all about. Only when these questions are answered, will we, as scholars, determine whether to actively use the approach or let it die off like a burnt out candle