Resumo Objetivo: explorar e descrever como as enfermeiras perioperatórias avaliam e interpretam o comportamento da criança antes de entrar na sala de cirurgia, identificando as estratégias que utilizam para minimizar a ansiedade e as propostas de melhoria. Método: estudo qualitativo descritivo utilizando entrevistas semiestruturadas e observação participante das rotinas diárias. Análise temática dos dados. O estudo segue os critérios recomendados para publicação de artigos da metodologia qualitativa Consolidated Criteria for Reporting Qualitative Research. Resultados: quatro temas emergiram dos dados: a) avaliação da ansiedade ou comunicação próxima com a criança e sua família; b) analisando o que foi observado; c) controlando a ansiedade e d) melhorando a avaliação ou propostas de melhoria na prática diária. Conclusão: as enfermeiras avaliam a ansiedade em sua prática diária por meio da observação e usando julgamento clínico. A experiência da enfermeira é decisiva na avaliação adequada da ansiedade pré-operatória da criança. A falta de tempo entre a espera e o momento de entrar na sala de cirurgia, a escassez de informação que a criança e os pais têm sobre o processo cirúrgico e a ansiedade dos pais, dificultam a avaliação e o controle adequado da ansiedade.

Abstract Objective: to explore and describe how perioperative nurses assess and interpret the child’s behavior before entering the operating room, identifying the strategies they use to reduce anxiety and the proposals for improvements. Method: descriptive qualitative study using semi-structured interviews and participant observation of daily routines. Thematic analysis of data. This study follows the recommended criteria for publication of articles of the qualitative methodology Consolidated Criteria for Reporting Qualitative Research. Results: four topics emerged from the data: a) assessment of anxiety or close communication with the child and their family; b) evaluating what was observed; c) managing anxiety and d) improving the assessment or proposals for improvements in daily practice. Conclusion: nurses assess anxiety in their daily practice through observation using their clinical judgment. The nurse’s experience is decisive for the appropriate assessment of the preoperative anxiety in child. Insufficient time between waiting and entering the operating room, lack of information from child and their parents about the surgical procedure, and parental anxiety make it difficult to assess and properly manage anxiety.

Resumen Objetivo: explorar y describir cómo las enfermeras perioperatorias evalúan e interpretan el comportamiento del niño antes de entrar a quirófano, identificando las estrategias que utilizan para minimizar la ansiedad y las propuestas de mejora. Método: estudio cualitativo descriptivo mediante entrevistas semiestructuradas y observación participante de las rutinas diarias. Análisis temático de los datos. El estudio sigue las recomendaciones de criterios para la publicación de artículos de metodología cualitativa Consolidated Criteria for Reporting Qualitative Research. Resultados: cuatro temas surgieron de los datos: a) evaluación de la ansiedad o comunicación estrecha con el niño y su familia; b) valorando lo observado; c) manejando la ansiedad y d) mejorando la evaluación o propuestas de mejora para la práctica diaria. Conclusión: enfermeras evalúan la ansiedad en su práctica diaria de forma observacional utilizando el juicio clínico. La experiencia de la enfermera es determinante en la adecuada evaluación de la ansiedad prequirúrgica del niño. La falta de tiempo entre la espera y el momento de entrar a quirófano, la mala información que tiene el niño y los padres sobre el proceso quirúrgico y la ansiedad de los padres dificultan la evaluación y el manejo correcto de la ansiedad.

Resumo Para que a reciclagem aconteça, são necessárias normas, participação social e infraestrutura adequada para a coleta do material descartado. As estruturas e as normas internacionais e nacionais que norteiam o gerenciamento dos resíduos sólidos na Suécia favorecem a redução do volume descartado. Nesse contexto, este artigo objetiva examinar os arranjos institucionais dos serviços de manejo dos resíduos sólidos da Região Metropolitana de Estocolmo e seus efeitos sobre a diminuição do volume encaminhado para destinação final. A metodologia utilizada tem natureza exploratória, do tipo descritiva, com análise qualitativa. Os arranjos institucionais aplicados na Suécia vêm contribuindo para o alcance de objetivos nacionais e internacionais propostos para o país e podem inspirar o aperfeiçoamento do gerenciamento desses serviços no Brasil.

Abstract Recycling waste require rules, social participation, and adequate infrastructure for collection of discarded material. The international and national structures and rules that govern solid waste management in Sweden enable to reduce the discarded volume. In this context, the article aims to examine the institutional arrangements for solid waste management services in the Stockholm Metropolitan Area and their minimization effects on the volume sent to final disposal. The methodology used in the study is exploratory and descriptive, with a qualitative analysis. The institutional arrangements implemented by Sweden have contributed to the fulfilment of national and international objectives proposed for the country and can inspire an improvement in the management of these services in Brazil.

RESUMO Os primatas que habitam a floresta tropical ao redor da cidade de Manaus (Amazonas, Brasil) há muito são reconhecidos como reservatórios potencialmente importantes de doenças infecciosas emergentes e reemergentes. Sequências de DNA de parasitas filariais detectadas por PCR em amostras de Simulium oyapockense foram usadas para demonstrar que eles haviam se alimentado anteriormente de primatas não humanos e, dessa maneira, incriminar vetores-ponte da região amazônica. O uso mais amplo de detecção de parasitas filariais para a incriminação de vetores-ponte é limitado por uma escassez de sequências referência de parasitas filarias obtidas de hospedeiros. Aqui nós usamos o sequenciamento tipo shotgun para obter dados de referência de um parasita adulto Dipetalonema gracile encontrado infectando um sauim-de-coleira, Saguinus bicolor no entorno de Manaus. Relatamos o genoma mitocondrial completo do parasita (que tem 13.647 pares de bases de comprimento), 894.846 pares de bases de seu genoma de Wolbachia e 6.426 pares de bases de seu locus de DNA ribossômico (desde o início de sua subunidade 18S até o final de sua subunidade 28S). Apesar de criticamente ameaçado, S. bicolor é comumente encontrado no entorno de Manaus e em fragmentos florestais urbanos. As sequências relatadas podem ser uma ferramenta de referência útil para identificar vetores ponte e potencialmente fornecer algumas informações sobre o contato entre reservatórios de patógenos de primatas e os moradores de Manaus.

ABSTRACT The primates that inhabit the rainforest surrounding the city of Manaus (Amazonas, Brazil) have long been recognised as potentially important reservoirs of emerging and re-emerging infectious diseases (ERIDs). PCR amplification of filarial sequences from wild-caught Simulium oyapockense has been used to incriminate potentially important Amazon-region ERID bridge vectors by showing they had previously fed on non-human primates. The broader use of filarial parasite sequences for the incrimination of biting insects as potentially important zoonotic disease vectors is limited by a paucity of primate-derived filarial parasite reference sequences which can be matched to the PCR amplified sequences obtained from insect-vector vectors. Here we have used shotgun sequencing to obtain reference data from an adult Dipetalonema gracile parasite which was found infecting a wild pied tamarin (Saguinus bicolor) in a peripheral region of Manaus. We report the parasite´s complete mitochondrial genome (which is 13,647 base pairs in length), 894,846 base pairs of its Wolbachia genome and 6,426 base pairs of its ribosomal DNA locus (spanning from the start of its 18S subunit to the end of its 28S subunit). Despite being critically endangered, S. bicolor is commonly encountered around the periphery of Manaus and in urban forest fragments. The reported sequences may be a useful reference tool for identifying ERID bridge vectors and potentially provide some insights into the amount and the nature of contact between primate pathogen reservoirs and the residents of Manaus.

Objectives: Religiosity and spirituality (R/S) have been negatively associated with several mental health problems, including delinquency. The study aimed to investigate the relationship between R/S and interpersonal violence using a systematic review. Methods: We conducted a descriptive systematic review followed by meta-analyses using seven different databases. We included observational studies that assessed the relationship between R/S and different types of interpersonal violence (physical and sexual aggression and domestic violence). Results: A total of 16,599 articles were screened in the databases and, after applying the eligibility criteria, 67 were included in the systematic review and 43 were included in the meta-analysis. The results showed that higher levels of R/S were significantly associated with decreased physical and sexual aggression, but not domestic violence. All selected studies evidenced sufficient methodological quality, with 26.8% being cohort studies. In the subanalyses, the role of R/S was more prevalent among adolescents. Conclusion: There is an inverse relationship between R/S and physical and sexual aggression, suggesting a protective role. However, these results were not observed for domestic violence. Healthcare professionals and managers should be aware of their patients’ beliefs when investigating interpersonal violence to create tailored interventions for reducing violent behavior.

Resumen El trastorno por déficit de atención con hiperactividad (TDAH) y el trastorno del espectro autista (TEA) son trastornos del neurodesarrollo cuyo diagnóstico es clínico y con gran variabilidad en la presentación clínica. La posibilidad de identificar y validar biomarcadores en estos trastornos del neurodesarrollo ayudaría no sólo en su diagnóstico sino también a la hora de implementar tratamientos personalizados y mo nitorizar la respuesta al tratamiento. Exploraciones neurofisiológicas como los potenciales evocados cognitivos (PEC), son una de las herramientas más utilizadas para evaluar de forma objetiva y con una alta resolución temporal las funciones cognitivas y proporcionan información sobre los mecanismos neurobiológicos subyacen tes, por lo que constituyen una herramienta de gran utilidad para valorar las alteraciones cognitivas asociadas a los trastornos del neurodesarrollo. Se han utilizado diferentes componentes de los PEC para el estudio de los trastornos del neurodesarrollo, como el componente P300, N400 o el componente N170 como biomarcador de la disfunción social en TEA. Revisamos los principales componentes de los PEC que se han estudiado como herramientas complementarias en el diagnóstico y en la monitorización de los tratamientos en los trastornos del neurodesarrollo.

Abstract Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are neurodevel opmental disorders whose diagnosis is clinical and with great variability in clinical presentation. The possibility of identifying and validating biomarkers in these neurodevelopmental disorders would help not only in their diagnosis, but also when implementing personalized treatments and monitori ng the response to treatment. Neurophysiologi cal examinations such as event related potentials (ERP) are one of the most widely used tools to objectively assess cognitive functions with high temporal resolution and provide information on the underlying neurobiological mechanisms, making them a very useful tool to assess cognitive alterations associated with neurodevelopmental disorders. Different components of the ERP have been used for the study of neurodevelopmental disorders, such as the P300, N400 component or the N170 component as a biomarker of social dysfunction in ASD. We review the main components of ERP that have been studied as complementary tools in the diagnosis and monitoring of treatments in neurodevelopmental disorders.

ABSTRACT The auditory brainstem response (ABR) by evoked potentials is a widespread auditory pathway assessment technique. This is largely applied due to its cost-effectiveness, practicality and ease of use. In contrast, it requires a trained professional to carry out the analysis of the results. This motivates several research efforts to increase the independence of the diagnostician. To this end, the present work shows the ability of three signal classification tools to differentiate ABR studies of normal hearing subjects from those who may have some pathology. As a starting point, the PhysioNet short term auditory evoked potentials databases are used to calculate the features later applied to construct the dataset. The features used are diverse classes of permutation entropy, fractal dimension, the Lyapunov exponent and the zero crossing rate. To ensure more accurate results, a Montecarlo simulation of one thousand trials is employed to train the classifiers and test the results. The goodness of the classification is performed upon the basis of the computation of quality parameters, such as the area under the receiver operating characteristic curve (ROC), the F1 score coefficient and the accuracy. In all the cases the methodology proposed gives high performance results that encourage the line of research of the present work.

Resumen Introducción y objetivos: La información sobre la biodiversidad de áreas protegidas es fundamental para desarrollar estrategias de manejo y conservación. En este trabajo evaluamos el número de registros de plantas y vertebrados de Parques Nacionales (PN) de Argentina en función de la riqueza de especies de la provincia donde se encuentra cada PN, analizamos posibles variables explicativas del número de registros en cada PN, y describimos la vegetación registrada en tres PN icónicos del país. M&M: Los registros de plantas vasculares y de vertebrados, las características de cada PN y la riqueza de especies de la provincia donde se encuentra cada PN se obtuvieron de bases de datos de acceso abierto. Para los PN Calilegua, Iguazú y Nahuel Huapi describimos el número de plantas según familia, origen, endemismo, forma de vida, estado de conservación según UICN e invasividad de especies no nativas. Resultados: Los PN presentaron gran variabilidad en sus registros. Encontramos pocos registros de especies no nativas. Los PN más antiguos registraron más plantas no nativas. La lista de plantas del PN Nahuel Huapi mostró un mayor número de registro que Calilegua e Iguazú. El número de plantas categorizadas por UICN fue muy bajo. Casi todas las plantas no nativas registradas estaban categorizadas como invasoras en otros lugares del mundo. Conclusiones: Destacamos la importancia de incrementar el relevamiento de especies en todos los PN, particularmente de plantas y en PN de reciente creación. Se requiere mayor atención a especies no nativas a fin evitar problemas socio-ecológicos asociados a invasiones biológicas.

Summary Background and aims: Biodiversity information of protected areas is essential to develop management and conservation strategies. Here we 1) evalúate the number of records of plant and vertebrate species of National Parks (NP) from Argentina based on the species richness of the province where each NP is located, 2) analyze possible explanatory variables of the number of records in each NP, and 3) describe the vegetation registered in three iconic NPs of the country. M&M: The records of vascular plants and vertebrates, the characteristics of each NP and the species richness of the province where each NP is located were obtained from open access databases. For Calilegua, Iguazú and Nahuel Huapi NPs we describe the number of plants according to family, origin, endemism, life form, IUCN categorization and invasiveness of non-native species. Results: All NPs showed great variability in their records. There were few records of non-native species. Older NPs had more non-native plants records. The list of plants of Nahuel Huapi NP showed more records than Calilegua and Iguazú. The number of plants categorized by IUCN was very low. Almost all recorded non-native plants were invasive elsewhere in the world. Conclusions: We emphasize the importance of increasing the survey of species in all NP, particularly vascular plants and in recently created NPs. Special attention must be given to non-native species in order to avoid socio-ecological problems associated with biological invasions.

Resumen Términos como “parásitos”, “patógenos” o “virus” se utilizan en el campo de la medicina para la identificación de organismos que producen daño sobre otros. Sin embargo, en el campo de la veterinaria y su interacción con la ecología el contexto es diferente: la utilización indiscriminada de estos términos ha producido que muchas veces los mismos se utilicen como sinónimos. Al estudiar la bibliografía disponible sobre apicultura o conservación de abejas nativas, podemos observar que solamente unos pocos y recientes estudios se focalizan en esta necesaria reconceptualización de los términos basada en la ecología. A lo largo de esta revisión buscaremos diferenciar los conceptos de “parásito”, “patógeno” y“virus”, y redefinir los conceptos de “virulencia” y “patogenicidad” bajo un contexto ecológico. Esta revisión, propone demostrar que las interacciones parásito/hospedador pueden expresarse de forma diferencial en función del contexto micro (hospedador) y macro ambiental (ambiente del hospedador). Aunque utilizaremos a las abejas melíferas (Apis mellifera) como modelo, la teoría aquí abordada podría ser extrapolada por el lector a otros sistemas parasitarios.

Abstract Parasitism and bees: a concept revision from an ecological perspective. From the beginning all, parasites, pathogens and viruses are organisms that have a negative connotation in the field of medicine. However, the use of methodologies and terms of medicine in the field of ecology and, above all, veterinary medicine, led to this understanding of "pathogenic" organisms reaching such studies. When we look into the apicultural research bibliography, we find that these concepts sometimes are poorly distinguished and only a few early studies have been focused on bringing light on this conflictive conceptualization. Today we find a large number of scientific articles that misuse these terms and often consider them as synonyms. Throughout this review we will seek to differentiate each of these terms and generate consensus that avoids the confusion of such important ecological concepts.

Pretendemos identificar os principais aspectos e interesses da política Neoliberal e seu esforço em utilizar o Estado como um instrumento para beneficiar o capital financeiro, o aparelhando e o equiparado à Empresa privada. Nosso objetivo é mostrar que o capitalismo, com suas crises econômicas e sociais cíclicas, não oferece alternativas para superar o desemprego, assim como, a desigualdade que se espalha em todos os países. No setor financeiro e nas grandes empresas houve uma política sem precedentes de abertura de fronteiras com a redução dos direitos trabalhistas e sociais. Entretanto, essa política deve ser analisada e ponderada.

In Neoliberalism, Public Policy, and Inequality: An Analysis Mainly of Brazil, we intend to identify the main aspects and interests of neoliberal politics and its effort to use the State as an instrument to benefit financial capital, equipping it and equating it with the private company. Our objective is to show that capitalism, with its cyclical economic and social crises, does not offer alternatives to overcome unemployment, as well as the inequality that spreads in all countries. In the financial sector and in large companies, there was an unprecedented policy of opening borders with the reduction of labor and social rights. However, this policy must be analyzed and considered.

Aim The aim of the present study is to assess the perception of undergraduate students on the impact of the COVID-19 pandemic on Brazilian dental education. Methods This cross-sectional study was conducted using an online questionnaire hosted in Google Forms platform and publicized on Instagram® and Facebook®. The questionnaire was available between July 8-27, 2020. Absolute and relative frequencies were obtained for variables of interest using Pearson’s chi-squared and considering 95% confidence intervals. Prevalence of learning resource variables according to self-reported skin color, educational institution, and Brazilian region were presented using equiplots. Results A total of 1,050 undergraduate dental students answered the questionnaire. Most students reported being in full-distance learning mode. Among the undergraduate students, 65.4% reported perceiving a very high impact in dental education, and 16.6% of students reported not being able to follow distance learning. In addition, 14% reported not having a personal laptop or desktop to study with, with this condition being more prevalent among non-white than white individuals. Conclusion We conclude that Brazilian dental students perceived a high impact of COVID-19 on dental education, as well as one-sixth of the students reported not having adequate resources to continue with distance learning. It is important that different policies are developed at the institutional and governmental levels to reduce the impact of the pandemic on dental education.

RESUMO Objetivo: Determinar a associação entre o diabetes mellitus tipo 2 e catarata em adultos peruanos com mais de 50 anos de idade. Métodos: Estudo analítico observacional transversal correspondente à análise secundária da base de dados do Encuesta Demográfica y de Salud Familiar de 2019. O diabetes mellitus tipo 2 foi considerado variável independente e a catarata, variável dependente. Foi realizada uma análise descritiva utilizando frequências absolutas e proporções ponderadas, bem como uma análise multivariada, usando modelos lineares generalizados da família Poisson com função de ligação logarítmica para estimar razões de prevalência sobre a associação entre o diabetes e a catarata. Resultados: Foram analisados dados de 8.775 adultos peruanos com mais de 50 anos de idade, dos quais 1.322 autorrelataram diagnóstico de catarata. Do total de inquiridos, 9,2% relataram ter sido diagnosticados com diabetes mellitus e 16,7%, com cataratas. O modelo bruto (p<0,001), o modelo ajustado 1 (p=0,007) e o modelo ajustado 2 (p=0,029) encontraram associação entre ter diabetes mellitus e ter catarata. Conclusão: Dois em cada dez adultos com 50 anos de idade ou mais no Peru tinham catarata. Houve associação entre ter diabetes e a presença de catarata na população peruana.

ABSTRACT Objective: To determine the association between type 2 diabetes mellitus and cataracts in Peruvian adults over 50 years of age. Methods: Cross-sectional analytical observational study corresponding to the secondary analysis of the 2019 Encuesta Demográfica y de Salud Familiar database. Type 2 diabetes mellitus was considered an independent variable and cataract as a dependent variable. A descriptive analysis was performed using absolute frequencies and weighted proportions, as well as a multivariate analysis using generalized linear models of the Poisson family with logarithmic link function to estimate prevalence ratios on the association between diabetes and cataracts. Results: Data from a total of 8,775 Peruvian adults over 50 years of age were analyzed, of whom 1,322 self-reported a diagnosis of cataract. Of the total respondents, 9.2% reported having been diagnosed with diabetes mellitus and 16.7% with cataracts. The crude model (p<0.001) and the adjusted models 1 (p=0.007) and 2 (p=0.029) found an association between having diabetes mellitus and having cataracts. Conclusion: Two out of ten adults aged 50 years old and older in Peru had cataracts. There was an association between having diabetes and the presence of cataracts in the Peruvian population.

Abstract In this study, the microbiota associated with coffee fermentation from two regions from northern Peru was evaluated. Bacteria and fungi were isolated from coffee farms in the Amazonas and Cajamarca regions and identified using molecular markers 16S rRNA and ITS. The potential pectinase activity was registered by the formation of a transparent halo around colonies. As a result, 29 and 09 species belonging to bacteria and fungi, respectively, were found. The bacterial genera Lysinibacillus and Stenotrophomonas and the fungal genus Aspergillus accounted for the highest number of species isolated from coffee ferments. Forty-one out of 71 isolates showed some type of pectinase enzyme activity, and they included 23 isolates from Cajamarca and 18 from Amazonas. Nevertheless, only three bacterial species registered the formation of transparent halos and showed relevant potential pectinase enzyme activity, namely, Lysinibacillus xylanilyticus, Stenotrophomonas maltophilia, and Stenotrophomonas pavanii, which were all from the Cajamarca region. These species could be further investigated by quantifying enzymes activity and performing other biochemical properties to prototype starter cultures. Accordingly, the study of indigenous microorganisms with biological potential will be essential to increase the coffee value chain and improve the incomes of farmers.

RESUMO Objetivo: descrever a condução de extração, análise e codificação de dados utilizando a Grounded Theory, na perspectiva Straussiana, em Metassínteses de literatura. Método: trata-se de um ensaio teórico-reflexivo sobre a condução da extração de dados de revisões com metassíntese. Para delineamento do processo de busca dos estudos qualitativos, este ensaio aborda, de forma sucinta, as etapas sequenciais do Preferred Reporting Items for Systematic Review and Meta-Analyses e da Joanna Briggs Institute. O processo de extração, análise e codificação foi realizado seguindo os pressupostos da Grounded Theory, com a perspectiva Straussiana. São as bases teórico-metodológicas nas primeiras etapas das diretrizes dos guias de revisão de literatura e Metassíntese, iniciando com a pergunta de pesquisa até chegar às etapas da revisão, divididas em identificação, seleção, elegibilidade e inclusão. Resultados: nos resultados são descritos o processo de extração, análise e codificação de dados na perspectiva Straussiana, com uso de análise comparativa dos dados, memorandos, diagramas e possibilidades de novos grupos amostrais a partir da leitura analítica minuciosa dos estudos inclusos. Por fim, é realizada a saturação teórica, com síntese dos achados, com exemplos de categorias e subcategorias, emersão do fenômeno central e apresentação da modelo paradigmático. Conclusão: o ensaio apresenta subsídios para a compreensão da condução de extração, análise e codificação de dados em Metassínteses baseada na perspectiva Straussiana, possibilitando, de forma sistematizada, a síntese de evidências qualitativas e contribuindo no desenvolvimento de modelos ou teorias de caráter conceitual.

ABSTRACT Objective: to describe the conduction of data extraction, analysis and codification using the Straussian perspective of Grounded Theory, in Literature Meta-analysis. Method: this is a theoretical-reflexive study on the data extraction from reviews with meta-anaylses. To design the process of searching for qualitative studies, this study briefly addresses the sequential steps of Preferred Reporting Items for Systematic Review and Meta-Analyses and the Joanna Briggs Institute. The extraction, analysis and codification process were carried out following the assumptions of grounded theory, with the Straussian perspective. They are the theoretical-methodological bases in the first stages of the guidelines of the literature review and Meta-analyses guides, starting with the research question until reaching the review stages, divided into identification, selection, eligibility, and inclusion. Results: the results describe the process of data extraction, analysis and codification from the Straussian perspective, using comparative analysis of data, memoranda, diagrams and possibilities of new sample groups from the detailed analytical reading of the included studies. Finally, theoretical saturation is performed, with an analysis of the findings, with examples of categories and subcategories, the emergence of the central phenomenon and presentation of the paradigmatic model. Conclusion: the essay presents subsidies for the understanding of the conduction of extraction, analysis and codification of data in meta-analyses based on the Straussian perspective, enabling the systematized analysis of qualitative evidence and contributing to the development of models or theories of conceptual character

RESUMEN Objetivo: describir la conducta de extracción, análisis y codificación de datos utilizando la Teoría Fundamentada, en la perspectiva Straussiana, en la Metasíntesis de la Literatura. Método: se trata de un ensayo teórico-reflexivo sobre la conducción de la extracción de datos a partir de revisiones de metasíntesis. Para delinear el proceso de búsqueda de estudios cualitativos, este ensayo aborda brevemente los pasos secuenciales de los Elementos de informe preferidos para la revisión sistemática y los metanálisis y el Instituto Joanna Briggs. El proceso de extracción, análisis y codificación se realizó siguiendo los supuestos de la Grounded Theory, con la perspectiva straussiana. Son las bases teórico-metodológicas en las primeras etapas de los lineamientos de las guías de revisión de literatura y Metasíntesis, partiendo de la pregunta de investigación hasta llegar a las etapas de revisión, divididas en identificación, selección, elegibilidad e inclusión. Resultados: los resultados describen el proceso de extracción, análisis y codificación de datos desde la perspectiva straussiana, utilizando análisis de datos comparativos, memorandos, diagramas y posibilidades de nuevos grupos de muestra a partir de una lectura analítica exhaustiva de los estudios incluidos. Finalmente, se realiza una saturación teórica, con una síntesis de los hallazgos, con ejemplos de categorías y subcategorías, emergencia del fenómeno central y presentación del modelo paradigmático. Conclusión: el ensayo presenta subsidios para la comprensión de la extracción, análisis y codificación de datos en Metasíntesis a partir de la perspectiva straussiana, permitiendo, de forma sistemática, la síntesis de evidencias cualitativas y contribuyendo al desarrollo de modelos o teorías de carácter conceptual. naturaleza.

Abstract The genetic basis of oral epithelial (OED) is unknown, and there is no reliable method for evaluating the risk of malignant transformation. Somatic mutations are responsible for the transformation of dysplastic mucosa to invasive cancer. In addition, these genomic variations could represent objective markers of the potential for malignant transformation. We performed whole-exome sequencing of 10 OED samples from Brazilian and Chilean patients. Using public genetic repositories, we identified 41 deleterious variants that could produce high-impact changes in the amino acid structures of 38 genes. In addition, the variants were filtered according to normal skin and Native American genome profiles. Finally, 13 genes harboring 15 variants were found to be exclusively related to OED. High-grade epithelial dysplasia samples showed a tendency to accumulate highly deleterious variants. We observed that 62% of 13 OED genes identified in our study were also found in head and neck squamous cell carcinoma. Among the shared genes, eight were not identified in oral squamous cell carcinoma. To our knowledge, we have described for the first time 13 genes that are found in OED in a Latin American population, of which five genes have already been observed in oral squamous cell carcinoma. Through this study, we identified genes that may be related to basal biological functions in OED.

ABSTRACT Brazil has immense potential in the production of quartz and its gem varieties, consequently generating huge amounts of waste. This research aims to utilize the amethyst quartz tailings from the Alto Bonito mine-Brazil accumulated for decades in waste dumps, through a specific study of cementitious mortar production, considering the mineralogical and chemical characterization; evaluation the use of tailings as a fine aggregate for mortar production; estimate the technical feasibility through mechanical tests and; characterize of specimens by SEM after breakage. The tailings are quartz associated with mica. Quartz is polycrystalline with medium to fine grain, being SiO2 the main component. The comminuted tailings showed a very fine fineness modulus, affecting the formulations. With cement:tailings (1:3) traces the mechanical tests show 5.65 Mpa and 1.05 Mpa to compressive and flexural strength respectively, slightly below the reference. The fine-sized and metamorphic morphology of the tailings affects the mechanical strength of the mortar. The process adopted in the production of mortars with total replacement of the fine aggregate have a great impact contributing to the reduction of waste in dumps, minimizing the environmental impact of mining, in addition to benefiting the Amethyst Miners Cooperative.