Summary: Bioremediation with humic substances is one of the recent and promising techniques for the restoration of soils contaminated by hydrocarbons, but little information is available on its behavior in different types of soil. For these reasons, this research aimed to evaluate the removal of total petroleum hydrocarbons (HTP) in three types of soil with different textures (S1, S2 and S3) and treated with organic vermicompost amendments (cocoa husks, Theobroma cacao; rice, Oriza sativa; sugarcane bagasse, Saccharum officinarum; cow manure) and commercial humic substances (potassium humate). A randomized multifactorial experimental design (3 × 3 × 2) was proposed, which consisted of the type of soil, organic amendment (without vermicompost, with organic vermicompost, commercial humic substances) and microbial load (with microorganisms, without microorganisms). The results were analyzed using the ANOVA-Tukey tests in the Statgraphics CenturionTM V.18 program (α = 0.05) in order to evaluate significant differences between treatments. The results show that S2 with the addition of organic matter had the highest removal (86% of HTP) after 60 days of incubation, compared to the treatment with commercial humic substances, which are related to the low bioavailability of the microorganisms. This behavior was also observed in S3 with a TPH percentage removal of 77.52 and 63.4% for S1. Finally, the cell growth rate was better in S2 with commercial humic substances. An average growth of 94 × 104 CFU g-1 of soil was obtained during the 60 days of evaluation of the experiment, and a maximum of 98×105 CFU g-1 of soil in the 45 days of treatment. To conclude, the use of vermicompost is adequate for clayey soils, since the degradation rates are higher in them. In addition, they represent a cheaper alternative to synthetic treatments and revaluation of organic waste.

Resumen: La biorremediación utilizando sustancias húmicas es una de las técnicas recientes y prometedoras para la restauración de suelos contaminados por hidrocarburos, pero existe poca información sobre su comportamiento en los diversos tipos de suelo. Por estas razones, esta investigación tuvo como objetivo evaluar la remoción de hidrocarburos totales del petróleo o HTP en tres suelos con diferentes texturas (S1, S2 y S3) y tratados con enmiendas orgánicas de vermicomposta (cascarillas de cacao, Theobroma cacao; arroz, Oriza sativa; bagazo de caña, Saccharum officinarum; estiércol de vaca) y sustancias húmicas comerciales (humato de potasio). Se planteó un diseño experimental multifactorial aleatorio (3 × 3 × 2), constituido por tipo de suelo, enmienda orgánica (sin vermicomposta, con vermicomposta orgánica, con sustancias húmicas comerciales), y carga microbiana (con microorganismos, sin microorganismos). Los resultados fueron analizados mediante las pruebas ANOVA-Tukey en el programa Statgraphics Centurion TM V.18 (α = 0.05) con el fin de evaluar diferencias significativas entre los tratamientos. Los resultados muestran que S2 con vermicomposta orgánica tuvo la mayor remoción (86% de HTP) luego de 60 días de incubación, en comparación con el tratamiento con sustancias húmicas comerciales, relacionándose con la baja biodisponibilidad de microorganismos. Este comportamiento también se observó en S3, el cual tuvo un porcentaje de remoción de HTP de 77.52 y 63.4%. Finalmente, la tasa de crecimiento celular fue mejor en S2 con sustancias húmicas comerciales. Se obtuvo un crecimiento promedio de 94×104 UFC g-1 de suelo durante los 60 días de evaluación del experimento, y un máximo de 98×105 UFC g-1 de suelo a los 45 días de tratamiento. Se concluye que el uso de vermicomposta es adecuada para suelos arcillosos, ya que las tasas de degradación son mayores en ellos. Además, representan una alternativa de menor costo que los tratamientos sintéticos y de revalorización de residuos orgánicos.

Resumen: Con ocasión del centenario de Carlos Castilla del Pino (15 de octubre de 2022) se analiza la relación que existe entre sus dos facetas públicas: la psiquiátrica y la intelectual. Al revisar cronológicamente sus publicaciones aparecen claramente cuatro etapas que oscilan entre esos dos polos: empiezan siendo puramente psiquiátricas (1946-66), se desplazan luego hacia lo ensayístico (1966-71), vuelve a predominar la psiquiatría (1971-87) y finalmente se decanta por el ensayo literario-memorístico (1989-2010). El análisis de la recepción que tuvo Castilla del Pino por la psiquiatría académica (hostil) y por la intelectualidad progresista (entusiasta), junto con algunos testimonios personales, acaba de ilustrar esas dos facetas de su personalidad.

Abstract: On the occasion of Carlos Castilla del Pino's centenary (15 October 2022), we analyse the relationship between his two public facets: the psychiatric and the intellectual. A chronological review of his publications clearly shows four stages that oscillate between those two poles: they begin as purely psychiatric (1946-66), then move towards essays (1966-71), psychiatry again predominates (1971-87) and finally he opts for literary-memoiristic essays (1989-2010). The analysis of Castilla del Pino's reception by academic psychiatry (hostile) and by the progressive intelligentsia (enthusiastic), together with some personal testimonies, just illustrate these two facets of his personality.

Abstract: The use of imagem strategies in medical socieal networks is increasingly widespread, meeting the ethical limit established by the CEM. Knowing this, the present study sought to understand the problem of patient exposure in medical social networks. For this, a literature review was carried out from the Scientific Electronic Library Online (Scielo), Pubmed, UpToDate, LILACS databases, articles in English, Spanish and Portuguese published from 2018 onwards were included. Thus, a tendency was noticed in some cities to create laws to regulate this exposure, given that the use of images has become routine in medical advertising, as a way to demonstrate results. However, this practice is greatly accompanied by ethical failures as recommended by the CFM.

Resumen: El uso de estrategias de imagen en las redes sociales médicas está cada vez más extendido, cumpliendo el límite ético establecido por el CEM. Sabiendo esto, el presente estudio buscó comprender el problema de la exposición de los pacientes en las redes sociales médicas. Para ello, se realizó una revisión bibliográfica a partir de las bases Scientific Electronic Library Online (Scielo), PubMED, UpToDate, LILACS, incluyendo artículos en inglés, español y portugués publicados a partir de 2018. Así, se percibió en algunas ciudades la tendencia a crear leyes para regular esta exposición, dado que el uso de imágenes se ha vuelto rutinario en la publicidad médica, como una forma de demostrar resultados. Sin embargo, esta práctica está muy acompañada de faltas éticas como recomienda el CFM.

Resumo: A utilização das estratégias de imagem nas redes sociais médicas está cada vez mais disseminada, encontrando-se no limite ético estabelecido pelo CEM. Sabendo disso, o presente estudo buscou entender a problemática da exposição do paciente nas redes sociais médicas. Para isso, foi feita uma revisão da literatura a partir das bases Scientific Eletronic Library Online (Scielo), PubMED, UpToDate, LILACS, foram incluídos artigos em inglês, espanhol e português publicados a partir de 2018. Assim, percebeu-se em algumas cidades a tendência de criar leis para regular essa exposição, haja vista que a utilização de imagens tornou-se rotineira na propaganda médica, como forma demonstrar resultados. Todavia, tal prática vem acompanhada grandemente de falhas éticas segundo o preconizado pelo CFM.

Abstract This research arises from studies of women's management practices from the place of self-management within the scope of the Feminist Solidarity Economy Network (Resf) and, therefore, the term feminist practices of self-management was developed throughout the research, considering the practices that are performed in the Solidarity Economy (ES). The objective of this research is to identify and analyze one of the feminist practices of self-management observed in the field: the development of collective and networked learning. The main theoretical contributions used to mediate the discussion are based on studies of feminist management practices, on the perspective of substantive rationality, on studies on organizational learning and the post-colonialist view that adheres to the context of women in the SE. The data collection was implemented based on thematic oral history in semi-structured interviews with women from Resf and direct and indirect field observation between the years 2018 and 2021, recorded in field diaries. The perspective adopted for data analysis is critical discourse analysis. The results point to the following findings: (I) no hierarchization of the organization of learning practices; (II) intense exchange of information inside and outside the network based on reciprocal ties; (III) a form of learning that prioritizes experiences with a system of activities in which knowing is not separated from doing. For the women, knowledge is integrated and distributed in the life of the community, which necessarily requires the involvement that comes from the sense of belonging and mutual care that unites them.

Resumo Esta pesquisa surge dos estudos das práticas de gestão de mulheres a partir do lugar da autogestão no âmbito da Rede Feminista da Economia Solidária (Resf) e, por isso, desenvolveu-se ao longo da pesquisa o termo práticas feministas de autogestão, considerando-se as práticas que se performatizam na Economia Solidária (ES). O objetivo desta pesquisa é identificar e analisar uma das práticas feministas de autogestão observadas em campo: o desenvolvimento da aprendizagem coletiva e em rede. Os principais aportes teóricos articulados partem estudos sobre práticas de gestão feministas, da perspectiva da racionalidade substantiva, dos estudos sobre aprendizagem organizacional e a visão pós-colonialista que adere ao contexto das mulheres na ES. A coleta de dados foi implementada a partir da história oral temática em entrevistas semiestruturadas com mulheres da Resf e observação direta e indireta em campo entre os anos de 2018 e 2021, registradas em diários de campo. A perspectiva adotada para a análise dos dados é a análise crítica do discurso. Os resultados apontam para os seguintes achados: (I) não hierarquização da organização das práticas de aprendizagem; (II) troca intensa de informações dentro e fora da rede baseada nos laços de reciprocidade; (III) uma forma de aprendizagem que prioriza as experiências com um sistema de atividades no qual o conhecer não é separado do fazer. Para as mulheres, o conhecimento é integrado e distribuído na vida da comunidade, o que requer necessariamente o envolvimento que advém do sentimento de pertencimento e cuidado mútuo que as une.

Resumen Objetivo: Evaluar las capacidades organizacionales de las microempresas productoras y comercializadoras de café del municipio de Candelaria Loxicha, Oaxaca, para conocer su grado de desarrollo. Metodología: Se utilizó un cuestionario integrado por treinta ítems. La investigación adopta un enfoque cuantitativo de tipo descriptivo no experimental. Resultados: Muestran que las capacidades laborales, comerciales, financieras y de producción se encuentran en un nivel de semidesarrollo. En tanto que la capacidad logística se encuentra poco desarrollada y la capacidad tecnológica no está avanzada Limitaciones: El número de participantes en el estudio. Si bien la muestra de estudio se enfoca a 35 microempresas, para futuros estudios se recomienda ampliarla a otros municipios de la región cuyas características y condiciones ecológicas sean similares. Conclusiones: La evaluación de las capacidades estableció un claro escenario de las fortalezas y puntos débiles en los que estas microempresas deben trabajar con la finalidad mejorar su desempeño. Otro aspecto que deben prestar atención los microempresarios es la estandarización de procesos y actividades, personal capacitado y con perfil suficiente para desempeñar sus funciones y tecnología acorde a la complejidad de sus operaciones.

Abstract Objective: Evaluate the level of development of the organizational capabilities of coffee microenterprises and trader enterprises from the Candelaria Loxicha municipality in Oaxaca. Methodology: A questionnaire made up of 30 items was used. The research adopts a quantitative approach of non-experimental descriptive type. Results: The results show that labor, trading, financial and manufacturing capabilities are in a middle level development. Logistic capabilities are at a low development level and the technological capabilities are not developed. Limitations: Number of participants in the study. The limitations of this research work constitute an opportunity for future lines of research. Although the study sample focuses on 35 microenterprises, for future studies it is recommended to extend it to other municipalities in the region; whose characteristics and ecological conditions are similar. Conclusions: The evaluation of the capabilities established a clear scenario of the strengths and weaknesses in which these microenterprises must work to improve their performance. Another aspect that microentrepreneurs should pay attention to is the standardization of processes and activities, trained personnel with sufficient profile to perform their functions, and technology according to the complexity of their operations.

ABSTRACT A 59-year-old male patient with a personal pathological history of smoking, chronic obstructive pulmonary disease and morbid obesity. One month before admission he started with dry cough, left flank pain and marked asthenia; it was interpreted as a community inflammatory pneumopathy, which required several antibiotic treatments. There was no improvement and he went to the “Arnaldo Milián Castro” Hospital for study. The transthoracic echocardiogram performed showed a large pericardial effusion and a tumor image in the left atrium which infiltrated the pericardium. The symptoms worsened, he presented arterial hypotension and bradycardia, fell into cardiorespiratory arrest and was declared dead with the diagnoses of cardiac neoplasia and cardiogenic shock. The findings at necropsy allowed the diagnosis of constrictive pericarditis due to infiltration of moderately differentiated adenocarcinoma of the lung with pleural and pericardial carcinomatosis; he died of cardiogenic shock. The most frequent cardiac tumors are those of metastatic origin, including lung and breast carcinomas, melanomas and leukemias.

RESUMEN Paciente masculino de 59 años, con antecedentes patológicos personales de tabaquismo, enfermedad pulmonar obstructiva crónica y obesidad mórbida. Un mes antes del ingreso comenzó con tos seca, dolor en punta de costado izquierda y astenia marcada; se interpretó como una neumopatía inflamatoria de la comunidad, que requirió de varios tratamientos antibióticos. No hubo mejoría y acudió al Hospital “Arnaldo Milián Castro” para estudio. El ecocardiograma transtorácico realizado mostró un derrame pericárdico de gran cuantía y una imagen tumoral en la aurícula izquierda que infiltraba al pericardio. Hubo empeoramiento de los síntomas, presentó cuadro de hipotensión arterial y bradicardia, cayó en parada cardiorrespiratoria y lo declararon fallecido con los diagnósticos de neoplasia cardíaca y choque cardiogénico. Los hallazgos en la necropsia permitieron el diagnóstico de pericarditis constrictiva por infiltración de adenocarcinoma moderadamente diferenciado de pulmón con carcinomatosis pleural y pericárdica; falleció por cuadro de choque cardiogénico. Los tumores cardíacos más frecuentes son los de origen metastásico y, dentro de ellos, los carcinomas de pulmón y mama, los melanomas y las leucemias.

ABSTRACT Introduction: To achieve high levels of quality production with efficient use of raw materials, industries must have fault diagnosis systems for processing and analyzing the information obtained through data acquisition and control systems. The performance of fault diagnosis systems is affected by noise, information loss in the data acquisition process, the presence of unknown faults, and in the case of multi-mode processes, the occurrence of faults during transitions between stationary modes. The latter problem derives from the fact that diagnostic methods developed for stationary modes cannot be applied satisfactorily during transitions. Methods: In the present paper, a group of new paradigms is presented to provide solutions to the above-mentioned problems through the effective use of data-driven methods, clustering, imputation, hybrid algorithms, and computational intelligence tools. The proposals are validated in benchmark problems established as study cases in the scientific literature representing chemical processes, electromechanical systems, and urban water distribution networks. Results: Besides demonstrating the effectiveness of the proposals, the set of benchmark processes considered is very important for our country in its prospects for development, saving and caring of the environment.

RESUMEN Introducción: Para lograr elevados niveles de producción con calidad y con una utilización eficiente de la materia prima, las industrias deben tener instalados sistemas de diagnóstico de fallos procesando la información obtenida por los sistemas de adquisición de datos y control. El funcionamiento de estos sistemas se ve afectado por el ruido, la pérdida de información en los canales de comunicación, la presencia de fallos no conocidos para el sistema de diagnóstico y en el caso de los sistemas de múltiples modos de operación, por los fallos que se producen en las transiciones entre modos estacionarios ya que los métodos de diagnóstico desarrollados para estos modos donde las variables mantienen valores estacionarios no son satisfactorios para la transición. Métodos: En el presente trabajo se presentan un grupo de nuevos paradigmas con propuestas de soluciones a estas problemáticas utilizando de manera efectiva herramientas de agrupamiento, algoritmos híbridos, métodos Kernel, manejo de datos, imputación y otras provenientes de la inteligencia computacional. Las propuestas realizadas son validadas con problemas de pruebas que son casos de estudio establecidos en la literatura científica que representan procesos químicos, sistemas electromecánicos y redes urbanas de distribución de agua. Resultados: Muestran la efectividad de las mismas y la posibilidad de que puedan aplicarse a procesos de diferentes tipos muy importantes para nuestro país en sus perspectivas de desarrollo, ahorro y cuidado del medio ambiente.

Abstract Diallel designs are widely used in plant breeding to select parents and to study trait inheritance. The present work aimed to present a method to evaluate two divergent groups of parents, in which one group is used as a tester of the contrasting group. Each parent is crossed with a balanced mixture of seeds from the parents of the other group, and the parents and topcrosses are experimentally evaluated. Two groups of ten inbred maize lines were used to obtain intergroup topcrosses and biparental crosses in a diallel scheme. The data were subjected to analysis of variance and parameter estimation using the two models. The results showed the reliability of the method for the evaluation of lines and prediction of means of hybrid populations and can be recommended when the number of parents to be evaluated is large, making it difficult to evaluate biparental crosses in a diallel scheme.

ABSTRACT Introduction: antiphospholipid syndrome is a rare, autoimmune, thrombophilic disease, still little known to all health professionals, which implies delay in diagnosis and timely treatment. Objective: to expose the factors of social impact of the antiphospholipid syndrome due to its incidence in the quality of life of the patients. Methods: the review of the bibliography was carried out through the Google Scholar search engine with the descriptors: antiphospholipid syndrome, morbidity and mortality, damage, social impact, quality of life, in the SciELO, Medline-Pubmed, and Hinari databases. Results: the review focuses on four subtopics: Occurrence of antiphospholipid syndrome in thrombotic and obstetric morbidity and mortality, Recurrence of thrombotic events and accumulated chronic damage, Impairment of quality of life in patients with antiphospholipid syndrome, and Importance of Educational work on the social impact of antiphospholipid syndrome. Changes in lifestyles to correct the risk factors that these patients must face, add restrictions to their daily life and the fear of recurrences and death, cause additional psychological alterations that motivate specialized care. Conclusions: it is necessary to design large-scale health strategies for the comprehensive and multidisciplinary care of patients with antiphospholipid syndrome, which include training health professionals and applying educational actions that involve families.

RESUMEN Introducción: el síndrome antifosfolípido es una enfermedad trombofílica, autoinmune, rara, todavía poco conocida por todos los profesionales de la salud, lo cual implica demora en el diagnóstico y en el tratamiento oportuno. Objetivo: exponer los factores de impacto social del síndrome antifosfolípido por su incidencia en la calidad de vida de los pacientes. Métodos: se realizó la revisión de la bibliografía a través del motor de búsqueda Google Académico con los descriptores: síndrome antifosfolípido, morbimortalidad, daño, impacto social, calidad de vida, en las bases de datos SciELO, Medline-Pubmed, Hinari. Resultados: la revisión se centra en cuatro subtemas: Ocurrencia del síndrome antifosfolípido en la morbimortalidad trombótica y obstétrica, La recurrencia de los eventos trombóticos y el daño crónico acumulado, El deterioro de la calidad de vida de los pacientes con síndrome antifosfolípido, e Importancia de la labor educativa en el impacto social del síndrome antifosfolípido. Los cambios en los estilos de vida para la corrección de los factores de riesgo que deben enfrentar estos pacientes, añaden restricciones a su vida diaria y el temor a las recurrencias y a la muerte, provocan alteraciones psicológicas adicionales que motivan atención especializada. Conclusiones: se hace necesario diseñar estrategias de salud a gran escala para la atención integral y multidisciplinaria de los pacientes con síndrome antifosfolípido, que incluyan capacitar a los profesionales de la salud y aplicar acciones educativas que involucren a las familias.

Abstract Topcrosses are routinely used in maize-hybrid programs. This study aimed to evaluate heterosis components and combining ability to predict hybrid means between synthetics from two groups of S1 maize lines using the intergroup topcrosses model that includes S2 lines. Two groups, each with 30 S1 maize lines, were crossed using an intergroup topcross system, with a mixture of lines from one group as a tester for the contrasting group. Simultaneously, 30 S2 lines from each group were generated via self-pollination. Lines and topcrosses were experimentally evaluated and the data were analyzed using a model adapted to the study design. The results showed the suitability of the proposed model for studying heterosis components and general combining ability, detailing additive and dominance effects. Prediction of hybrid means between synthetics showed the potential of the lines to generate base populations for an interpopulation breeding program.

Abstract In this paper, a robust approach to improve the performance of a condition monitoring process in industrial plants by using Pythagorean membership grades is presented. The FCM algorithm is modified by using Pythagorean fuzzy sets, to obtain a new variant of it called Pythagorean Fuzzy C-Means (PyFCM). In addition, a kernel version of PyFCM (KPyFCM) is obtained in order to achieve greater separability among classes, and reduce classification errors. The approach proposed is validated using experimental datasets and the Tennessee Eastman (TE) process benchmark. The results are compared with the results obtained with other algorithms that use standard and non-standard membership grades. The highest performance obtained by the approach proposed indicate its feasibility.

ABSTRACT Introduction: the prognosis of patients with metastatic cancer of unknown origin is precarious, only 25% of patients are alive at one year. Objective: to determine the influence of histopathological diagnosis on one-year survival in patients with cancer metastases of unknown origin. Methods: an observational cohort study was conducted with patients admitted to the "Arnaldo Milián Castro" Hospital in the period from January 2011 to December 2017. Results: 57 patients were studied, 10 were alive and 47 died. Arterial hypertension (47.4%) and smoking (45.6%) were the most frequent personal pathologic antecedents. Asthenia, anorexia and weight loss, among others, were the clinical manifestations at admission most significantly associated with mortality. In the group of deceased patients the mean values of hemoglobin, serum albumin and triglycerides were significantly lower, while lactate dehydrogenase was higher. Patients with unknown primary tumor did not survive to one year and approximately 20% survive to six months, those with a diagnosis of poorly differentiated adenocarcinoma approximately 10% survived to 11 months and patients with lung primary survived approximately 10% to one year. Having unknown primary tumor increased the risk of dying approximately 3.6-fold, poorly differentiated adenocarcinoma 2.0-fold and primary lung tumor 1.9-fold. Conclusions: histopathological diagnosis of primary tumor, poorly differentiated adenocarcinoma and primary lung tumor influence mortality in patients with metastases of cancer of unknown origin.

RESUMEN Introducción: el pronóstico de los pacientes con metastásis de cáncer de origen desconocido es precario, solo el 25% de los pacientes están vivos al año. Objetivo: determinar la influencia del diagnóstico histopatológico en la supervivencia al año de pacientes con metástasis de cáncer de origen desconocido. Métodos: se realizó un estudio observacional de cohorte con los pacientes que ingresaron en el Hospital “Arnaldo Milián Castro” en el período comprendido entre enero de 2011 y diciembre de 2017. Resultados: fueron estudiados 57 pacientes, 10 resultaron vivos y 47 fallecidos. La hipertensión arterial (47,4%) y el tabaquismo (45,6%) fueron los antecedentes patológicos personales más frecuentes. La astenia, la anorexia y la pérdida de peso, entre otras, fueron las manifestaciones clínicas al ingreso más significativamente asociadas a la mortalidad. En el grupo de los pacientes fallecidos los valores medios de la hemoglobina, la albúmina sérica y los triglicéridos fueron significativamente menores, mientras que el lactato deshidrogenasa fue mayor. Los pacientes con tumor primario desconocido no sobrevivieron al año y aproximadamente el 20% sobrevive a los seis meses, los que tuvieron diagnóstico de adenocarcinoma poco diferenciado aproximadamente en un 10% sobrevivieron a los 11 meses y los pacientes con primario de pulmón sobrevivieron aproximadamente un 10% al año. Tener tumor primario desconocido aumentó el riesgo de morir aproximadamente 3,6 veces, adenocarcinoma poco diferenciado 2,0 veces y el tumor primario de pulmón 1,9. Conclusiones: el diagnóstico histopatológico de tumor primario, adenocarcinoma poco diferenciado y el tumor primario de pulmón influyen en la mortalidad del paciente con metástasis de cáncer de origen desconocido.

RESUMO Eugenia dysenterica DC. é uma árvore nativa do Cerrado conhecida como recurso genético por seus frutos e potencial culinário. O conhecimento da variabilidade genética de características agronômicas é importante para subsidiar pesquisas sobre a sua conservação e domesticação. Objetivou-se estimar os parâmetros genéticos quantitativos das características iniciais de crescimento entre e dentro de subpopulações de E. dysenterica, em teste de procedências e progênies, e estabelecer uma coleção de germoplasma representativa da distribuição da espécie. Para isso, 25 subpopulações naturais foram amostradas e, dentro de cada subpopulação, 6 árvores matrizes. As progênies foram semeadas em viveiro, em delineamento de blocos ao acaso constituído de 150 progênies, quatro repetições e cinco plantas por parcela. A análise de variância de caracteres do desenvolvimento inicial revelou maior variabilidade entre progênies dentro da subpopulação do que a observada entre as subpopulações. A biomassa acima do solo representou apenas 15 % da biomassa total, característica recorrente em espécies do Cerrado. A herdabilidade estimada e os coeficientes de variação genética apresentaram potencial de seleção para os caracteres de desenvolvimento inicial, importantes para a produção comercial de mudas. Uma coleção de germoplasma in vivo ex situ foi estabelecida para fins de conservação e melhoramento, utilizando-se uma amostra de quatro plantas de cada progênie.

ABSTRACT Eugenia dysenterica DC. is a native tree from the Brazilian Savanna known as a genetic resource for its fruits and culinary potential. The knowledge on the genetic variability of agronomic traits is important to support studies on its conservation and domestication. This study aimed to estimate the quantitative genetic parameters of initial growth traits among and within E. dysenterica subpopulations, in provenance and progeny testing, and establish a germplasm collection representative of the species distribution. For that, 25 natural subpopulations were sampled and, within each subpopulation, six mother trees. The progenies were sown in a nursery, in a randomized complete blocks design consisting of 150 progenies, four replications and five plants per plot. The analysis of variance of the initial development traits revealed a greater variability among the progenies within the subpopulation than that observed among the subpopulations. The aboveground biomass represented only 15 % of the total biomass, a recurrent characteristic in Brazilian Savanna species. The estimated heritability and coefficients of genetic variation presented selection potential for the initial development traits, which are important for commercial seedlings production. An in vivo ex situ germplasm collection was established for conservation and breeding purposes, using a sample of four plants from each progeny.

RESUMO Hancornia speciosa Gomes é uma das espécies frutíferas nativas mais frequentes no Cerrado. Estudos sobre a variabilidade genética de caracteres quantitativos para essa espécie são escassos e a identificação de acessos com as melhores características agronômicas pode subsidiar estratégias de programas de conservação e melhoramento genético. Objetivou-se estimar a diversidade genética de acessos da coleção de germoplasma de H. speciosa da Universidade Federal de Goiás e classificá-los com base em um índice de seleção combinando onze características agronômicas. Foram avaliados 192 acessos individuais de 57 progênies, de 29 populações naturais. Os dados foram submetidos a análise multivariada e os indivíduos e progênies avaliados pelo índice de seleção FAI-BLUP. A análise de agrupamento de Tocher permitiu agrupar as progênies em dez agrupamentos divergentes e os indivíduos em 18 agrupamentos divergentes. A seleção simultânea de caracteres com base no índice FAI-BLUP pode ser recomendada, mantendo-se a variabilidade potencial na população resultante da recombinação. A seleção individual mostrou-se mais eficaz do que a seleção baseada em médias de progênies, por explorar a variação genética entre e dentro das progênies.

ABSTRACT Hancornia speciosa Gomes is one of the native fruit species most frequent in the Brazilian Savanna. Studies on the genetic variability of quantitative traits for this species are scarce and the identification of accessions with the best agronomic traits may support strategies for conservation and breeding programs. This study aimed to estimate the genetic diversity of accessions from the H. speciosa germplasm collection of the Universidade Federal de Goiás (Goiânia, Goiás state, Brazil) and rank them based on a selection index combining eleven agronomic traits. A total of 192 individual accessions from 57 progenies, from 29 natural populations, were evaluated. The data were subjected to multivariate analysis and the individuals and progenies evaluated using the FAI-BLUP selection index. The Tocher cluster analysis allowed grouping the progenies into ten divergent clusters and the individuals into 18 divergent clusters. The simultaneous selection of traits based on the FAI-BLUP index may be recommended while maintaining the potential variability in the population resulting from the recombination. The individual selection proved to be more effective than the selection based on progenies means, because it exploits the genetic variation among and within progenies.

RESUMO A reforma a seco do metano (RS) é um processo catalítico endotérmico que ocorre entre 700 e 900 oC, capaz de converter CH4 e CO2 (biogás) em H2 e CO (gás de síntese). Trabalhos têm sido elaborados visando o desenvolvimento de catalisadores ideais para a RS, buscando resolver os problemas encontrados, como é o caso da desativação do catalisador por formação de coque, que reduz o desempenho da produção do gás de síntese e pode obstruir o leito catalítico. Em trabalhos anteriores do Laboratório de Materiais e Energias Renováveis (LABMATER) da UFPR, foi desenvolvido o catalisador 20Ni/Si-MCM-41 que possui bom desempenho na conversão de CH4 e CO2 e baixa tendência à formação de coque (≈10 mgC.gcat-1.h-1), tratando-se de um material com carga nominal de Ni de 20% (m/m), suportado em uma peneira molecular a base de sílica mesoporosa (Si-MCM-41) de elevada área específica (≈600 m2 g-1). Entretanto, somente ensaios em unidades experimentais utilizando o catalisador em pó haviam sido realizados para testar a eficiência do material. Neste trabalho, foi utilizada uma unidade piloto contendo um reator contínuo de leito fixo, com o objetivo de avaliar a atividade do catalisador granulado e sua estabilidade na RS, de forma a subsidiar a construção futura de um reformador em escala industrial. Realizou-se quatro experimentos prévios com variação da composição reacional de 40-70% CH4:30-60% CO2, 3 g do catalisador 20Ni/Si-MCM-41 no leito catalítico, temperatura de 800 oC e vazão dos produtos de 36 L.h-1 a 1 atm. Os testes envolvendo variações nas composições de entrada com duração de 4 horas indicaram melhores resultados para a mistura 50% CH4:50% CO2. Também foi realizado um ensaio de 17 horas afim de verificar a estabilidade do catalisador, avaliar a formação de coque durante o tempo de reação e o desempenho da unidade piloto.

ABSTRACT Dry reforming of methane (DRM) is an endothermic catalytic process that occurs between 700 and 900 oC, capable of converting CH4 and CO2 (biogas) into H2 and CO (syngas). Works have been undertaken in view of developing ideal catalyst for DRM, endeavoring to resolve the problems encountered, such as the case of catalyst deactivation due to coke formation, which reduces the performance of syngas production and may block the catalyst layer. In previous works by the Laboratory of Renewable and Materials Energies (LABMATER) at the UFPR, the catalyst 20Ni / Si-MCM-41 was developed, which has a good performance in the conversion of CH4 and CO2 and a low tendency to coke formation (≈ 10 mgC.gcat-1.h-1), being a material with a nominal Ni load of 20% (m / m), supported on a molecular sieve based on mesoporous silica (Si-MCM-41) with a high specific surface (≈600 m2.g-1). However, only tests in experimental units using the catalyst in the powdered form have been performed to test the efficiency of the material. In this work, a pilot unit containing a continuous fixed bed reactor was used, with the objective of evaluating the activity of the granular catalyst and its stability in DRM, in order to subsidize the future construction of a reformer on an industrial scale. Four preliminary experiments were performed with a varying reaction composition of 40-70% CH4: 30-60% CO2, 3 g of the catalyst 20Ni/Si-MCM-41 in the catalyst layer, temperature of 800 oC and a flow rate of the products of 36 Lh-1 at 1 atm. The tests involving variations in the entry compositions with a duration of 4 hours indicated better results for a mixture 50%CH4:50%CO2. Another test of 17 hours was performed, in order to verify the stability of the catalyst and evaluate coke formation during the reaction time and the performance of the pilot unit.