Abstract Purpose: To analyze the role of the community assembly as a determining instrument to exercise governance in local indigenous politics, because the various disputes between political factions erode the social fabric and increase the inequality gap. Methodological design: A qualitative, ethnographic study in the municipality of San Luis Amatlán, Oaxaca. Fifteen in-depth interviews were carried out with authorities throughout the municipality and with the adult population. The analysis was done with the analytical categories of governance in the Internal Regulatory Systems, in addition to the participants’ opinion on the performance of the municipal administrator. Results: It was found that the recovery of the municipal community assembly, as well as the assemblies in agencies and rancherías caused greater trust among the participants, together with an increase in the possibility of tracing a joint route to recover local governance through the election of the municipal council. Limitations of the study: Although the ethnographic approach sought to give voice to multiple community actors and social sectors, the research had a greater relationship with the authorities because they coexist more closely with the resource administration processes and their oversight. Findings: The community assembly is a fundamental element of the Internal Regulatory Systems which are consistent with the local customs and habits. The function of the assembly is not only to build consensus, it also acts as a means of control and administrative surveillance. Also, there is persistent conflict derived from the institutional design of indigenous municipalities, which have forms of resolution in their uses and customs such as the assembly, which is a space to address problems directly and without intermediaries.

Resumen Objetivo: Analizar el rol de la asamblea comunitaria como instrumento determinante para ejercer gobernanza en la política local indígena, ya que las diversas disputas entre facciones políticas erosionan el tejido social e incrementan la brecha de desigualdad. Diseño metodológico: Es de tipo cualitativo con una etnografía en el municipio de San Luis Amatlán, Oaxaca. Se realizaron 15 entrevistas a profundidad con autoridades en todo el municipio y con población adulta. El análisis se hizo con las categorías analíticas de gobernanza en los Sistemas Normativos Internos, además de la opinión sobre la figura de administrador municipal. Resultados: Se constató que la recuperación de la asamblea comunitaria municipal, así como las asambleas en agencias y rancherías, provocó mayor confianza entre las partes y la posibilidad de trazar una ruta conjunta para recobrar la gobernanza local a través de la elección del cabildo municipal. Limitaciones del estudio: Aunque la etnografía buscó dar voz a múltiples actores y sectores sociales comunitarios, la investigación tuvo mayor relación con las personas autoridades ya que éstas conviven con mayor cercanía con los procesos de administración de los recursos y su contraloría. Hallazgos: La asamblea comunitaria es un elemento fundamental en los Sistemas Normativos Internos, los cuales están insertos en los usos y costumbres indígenas y su función no sólo es construir consensos, sino que además actúa como medio de contraloría y vigilancia administrativa. También existe persistente conflictividad derivada del diseño institucional de los municipios indígenas, los cuales tienen formas de resolución en sus usos y costumbres como la asamblea, la cual es un espacio para abordar problemas de forma directa y sin intermediarios.

Summary: The soil seed bank is key to plant succession. However, agricultural activities have had a great impact on the vegetation and its composition. The aim was to determine the soil seed bank in different grazing agroecosystems in the central part of Veracruz state, Mexico. Richness, abundance, diversity, equity, dominance and similarity of the species were quantified and compared among four agroecosystems (silvopastoral, pasture-trees, traditional grazing, and Acahual or secondary vegetation) in Veracruz, Mexico during the year 2017. Samples were collected. of soil at two depths (0-5, > 5-10 cm). A statistical difference was found in the seed bank (P < 0.05) in silvopastoral at both depths, 0-5 (H’ = 2.13) and 5-10 (H’ = 1.86). Equity and dominance were higher for this agroecosystem (0.86) and for Acahual (0.58) with statistical differences (P < 0.05). No statistical differences were found at sites between depths (P > 0.05). Similarity was greater than 50% at all sites and increased with soil depth. The evidence suggests that the greatest diversity of the seed bank was in silvopastoral from 0 to 5 cm deep. The seed bank has potential for the restoration of vegetation, mainly herbaceous, and can promote the development of shrubs and trees, despite the management of cattle ranching sites.

Resumen: El banco de semillas del suelo es clave para la sucesión vegetal. Sin embargo, las actividades agrícolas han tenido un gran impacto en la vegetación y su composición. El objetivo fue determinar el banco de semillas del suelo en diferentes agroecosistemas de pastoreo en la parte central del estado de Veracruz, México. Se cuantificó y comparó la riqueza, abundancia, diversidad, equidad, dominancia y similitud de las especies entre cuatro agroecosistemas (silvopastoril, pastos-árboles, pastoreo tradicional, y Acahual o vegetación secundaria) en Veracruz, México durante el año 2017. Se recolectaron muestras de suelo a dos profundidades (0-5, > 5-10 cm). Se encontró diferencia estadística del banco de semillas (P < 0.05) en silvopastoril en ambas profundidades, 0-5 (H’= 2.13) y 5-10 (H´ = 1.86). La equidad y la dominancia fueron mayores para este agroecosistema (0.86) y para Acahual (0.58) con diferencias estadísticas (P < 0.05). No se encontraron diferencias estadísticas en sitios entre profundidades (P > 0.05). La similitud fue mayor al 50% en todos los sitios y aumentó con la profundidad del suelo. La evidencia sugiere que la mayor diversidad del banco de semillas estuvo en silvopastoril de 0 a 5 cm de profundidad. El banco de semillas tiene potencial para la restauración de la vegetación, principalmente herbácea y puede promover el desarrollo de arbustos y árboles, a pesar del manejo de sitios para la ganadería.

Abstract Business networks as an associative strategy represent an option to promote business development and growth, companies of the same turn join efforts and interests to create competitive advantages; through the transmission of knowledge among the members of the organizations their technical and management skills are improved. The objective of this quantitative, descriptive and transactional research is to analyze the conditions and characteristics of the artisans of the Mixteca Oaxaqueña region to integrate a business network; and investigate the appropriate methodology for their integration. The case study method was applied to study the problem in depth. The results indicate that the creation of a business network among the artisans of the Mixteca Oaxaqueña region will promote greater collaboration and joint promotion, which will allow them to enter potential markets with greater competitiveness. The skills and competences they demonstrate to produce a wide range of artisanal products will allow them, together, to attract a greater number of customers and contribute to the generation of economies of scale. In the integration of the business network, five phases were proposed: network identification; trust relationships; monitoring, evaluation and autonomous management; strategic planning; and the pilot project.

Resumen Las redes empresariales como estrategia asociativa representan una opción para promover el desarrollo y crecimiento empresarial, donde empresas del mismo giro unen esfuerzos e intereses para crear ventajas competitivas; mediante la transmisión de conocimientos entre los integrantes se mejoran sus habilidades técnicas y de gestión. El objetivo de esta investigación cuantitativa, descriptiva y transeccional consiste en analizar las condiciones y características de los artesanos de la región Mixteca Oaxaqueña para integrar una red empresarial; e investigar la metodología apropiada para su integración. Se aplicó el método estudio de caso, para estudiar a profundidad la problemática. Los resultados indican que la creación de una red empresarial entre los artesanos de la región Mixteca Oaxaqueña impulsará una mayor colaboración y promoción conjunta, que les permitirá incursionar en mercados potenciales con una mayor competitividad. Las habilidades y competencias que manifiestan para la producción de una gran diversidad de artesanías les permitirá en conjunto, captar un mayor número de clientes y contribuir en la generación de economías de escala. En la integración de la red empresarial se propusieron cinco fases: identificación de la red; relaciones de confianza; monitoreo, evaluación y gestión autónoma; planificación estratégica; y el proyecto piloto.

Resumen Introducción/objetivo: El proceso de envejecimiento saludable implica cambios en las funciones neurobiológicas a varios niveles y se asocia con un ligero deterioro en diversos dominios cognitivos, como las funciones ejecutivas (FE), así como con una mejora de las habilidades emocionales. El objetivo de este estudio es comparar el uso de estrategias de regulación emocional (RE) en jóvenes y adultos mayores y explorar la asociación entre habilidades de RE y FE entre los grupos etarios. Método: Participaron 40 jóvenes entre 18 y 39 años (50 % mujeres) y 40 adultos mayores de > 60 años (50 % mujeres), todos residentes en el Distrito Federal (Brasil). Se administraron las pruebas de Fluidez Verbal Fonológica (FAS), semántica y de cambio (animales y frutas) y de acciones, junto al Test de Stroop. Resultados: Hubo una correlación estadísticamente significativa entre la estrategia de reevaluación cognitiva (RC) y las pruebas de fluidez verbal semántica y de cambio en jóvenes y entre la estrategia de RC y la prueba FAS y el Test Stroop en adultos mayores. Eso es, el desempeño ejecutivo mostró relación directa con la RE en ambos grupos, con mayor uso de la RC por parte de los adultos mayores. Conclusiones: Los resultados de este estudio resaltan la pertinencia de continuar investigando la relación entre estas habilidades y analizar con mayor profundidad sus alteraciones durante la edad adulta y el proceso de envejecimiento.

Abstract Introduction/objective: The healthy aging process involves changes in neurobiological functions at various levels and is associated with a slight impairment in various cognitive domains, such as executive functions (EF), as well as the enhancement of emotional skills. The objective of this study was to compare the use of emotion regulation (ER) strategies in young adults (YA) and older adults (OA) and explore the association between ER skills and EF between age groups. Method: Participants were 40 YA between 18 and 39 years of age (50% women) and 40 OA > 60 years old (50% women), residents in the Federal District, Brazil. Phonological Verbal Fluency (FAS), semantic and switching (animals and fruits) and action tests were administered, along with the Stroop Test. Results: There was a statistically significant correlation of the Cognitive Reappraisal (CR) strategy and both semantic and switching verbal fluency tests in YA, and between the CR strategy and the FAS test and the Stroop Test in OA. That is, executive performance showed a direct relationship with ER in both groups, with greater use of cognitive reappraisal by older adults. Conclusions: The results of this study highlight the relevance of continuing to investigate the relationship between these abilities and analysing in greater depth their alterations during the aging process.

Abstract Cracking can be investigated by infrared thermography, as defects on a surface have different temperatures compared to regions without defects. The temperature of the crack depends on its dimensions, opening and depth, which can be identified by thermography. The possibility of classifying crack damage according to different depths by thermography in heating and cooling regimes and indicating which conditions are most suitable for identifying cracks is evaluated. It is proposed to observe the temperature evolution during the heating and cooling of a mortar slab that has cracks with different depths. The temperature variation of the plate during heating and cooling is monitored by thermograms and thermocouples present on the surface and interior of the plate in regions close to the cracks. It is identified, through the application of Delta-T thermographic contrast, that cracks of greater depth have a greater Delta-T, in modulus, during heating, while cracks of shallower depth have a greater Delta-T during cooling. Cracks are best identified during the cooling phase, as shallower cracks are not identified at the end of heating. dimensions evaluated DeltaT Delta T contrast DeltaT, T, modulus phase

Resumo A fissuração pode ser investigada por termografia de infravermelho, pois defeitos em uma superfície apresentam temperaturas diferentes em relação as regiões sem defeito. A temperatura da fissura é dependente das suas dimensões, abertura e profundidade, nas quais podem ser identificadas pela termografia. Avalia-se o comportamento das temperaturas em regime controlado de aquecimento e resfriamento de fissuras em função de diferentes profundidades e quais as condições mais adequadas para identificar as fissuras. Propõe-se a observação da evolução de temperatura no aquecimento e resfriamento de uma placa de argamassa que possui fissuras com diferentes profundidades. A variação de temperatura da placa no aquecimento e resfriamento é monitorada por termogramas e termopares presentes na superfície e interior da placa em regiões próximas às fissuras. Identifica-se, pela aplicação de contraste termográfico Delta-T, que fissuras de maior profundidade possuem maior Delta-T, em módulo, durante o aquecimento, enquanto fissuras de menor profundidade possuem maior Delta-T no resfriamento. As fissuras são melhor identificadas na fase de resfriamento, pois no fim do aquecimento as fissuras de menor profundidade não são identificadas. infravermelho defeito dimensões Avaliase Avalia se Propõese Propõe Identificase, Identificase Identifica se, Identifica-se DeltaT, DeltaT Delta T, T módulo

Abstract The growing use of contemporary models for predicting carbonation fronts, such as artificial neural networks, requires greater rigor in terms of database completeness. Treating carbonation depth databases as time series is a favorable alternative for quality assurance. Therefore, the aim of this article is to identify the best technique for imputing missing data in time series of carbonation depths of concrete with different compositions. The database used was information collected from concretes subjected to natural carbonation over 20 years of exposure belonging to the GEDur/UFG. Ten imputation techniques were tried, such as foward fill, moving average, interpolation and Kalman filter. All the techniques and analyses were implemented using the Python programming language in an integrated development environment. Based on the performance metrics and visual analysis, it was found that monotonic cubic spline interpolation captured the pattern of the carbonation depth curve as a function of time with greater precision and accuracy, achieving a performance index of 0.998 and RMSE between 0.106 mm and 0.863 mm depending on the concrete sample. fronts networks completeness assurance Therefore compositions 2 GEDurUFG GEDur UFG GEDur/UFG tried fill average filter environment analysis accuracy 0998 0 998 0.99 0106 106 0.10 0863 863 0.86 sample 099 99 0.9 010 10 0.1 086 86 0.8 09 9 0. 01 1 08 8

Resumo O crescente uso de modelos contemporâneos de previsão de frentes de carbonatação, como redes neurais artificiais, exige maior rigor sobre a completude dos bancos de dados. Tratar os bancos de dados de profundidades de carbonatação como séries temporais é uma alternativa favorável à garantia da qualidade. Dessa forma, este artigo tem o objetivo de identificar a melhor técnica de imputação de dados ausentes em séries temporais de profundidades de carbonatação de concretos com diferentes composições. Como banco de dados foram utilizadas as informações coletadas de concretos submetidos à carbonatação natural ao longo de 20 anos de exposição pertencentes ao grupo GEDur/UFG. Foram experimentadas dez técnicas de imputação entre as quais destacam-se, foward fill, média móvel, interpolação e filtro de Kalman. Todas as técnicas e análises foram implementadas utilizando linguagem de programação em python dentro de um ambiente de desenvolvimento integrado. Com base nas métricas de desempenho e análise visual, constatou-se que a interpolação spline monotônica cúbica capturou o padrão da curva de profundidade de carbonatação em função do tempo com maior precisão e acurácia, alcançando índice de desempenho de 0,998 e RMSE entre 0,106mm e 0,863mm dependendo da amostra de concreto. artificiais qualidade forma composições 2 GEDurUFG GEDur UFG GEDur/UFG destacamse, destacamse destacam se, se destacam-se fill móvel Kalman integrado visual constatouse constatou acurácia 0998 0 998 0,99 0106mm mm 106mm 0863mm 863mm concreto 099 99 0,9 09 9 0,

Abstract: The primary objective of this research study is to assess the factors that influence student’s preference of professors. Preferring the same professor multiple times is associated with factors such as time dedicated to the subject taught by the professor in question, reason for enrollment, and preparation of classes. Through the J48 algorithm of the Weka program, the primary variables students prioritize when repeatedly selecting the same professor are predicted. Training with 50% of the data and validating with the remaining 50% achieve this prediction with effectiveness greater than 83%. The results show that the most influential variables are: 1) the professor did everything possible for students to learn, 2) depth of learning, 3) pleasant work style, 4) preparation of classes, 5) encouragement on the topics covered, and 6) endeavors to help students learn. It is concluded that identifying these variables facilitates the design of educational policies focused on students and professors.

Resumen: El principal objetivo de esta investigación es evaluar los factores que influyen en los estudiantes para preferir un docente. Preferir varias veces un mismo docente está asociado con factores como el tiempo dedicado a la asignatura impartida por el profesor en cuestión, el motivo de la inscripción y la preparación de clases. Por medio del algoritmo J48 del programa Weka, se predicen las principales variables que priorizan los estudiantes al preferir un mismo docente varias veces. Entrenando con el 50% de los datos y validando con el 50% restante, se logra realizar esta predicción con una efectividad superior al 83%. Los resultados muestran que las variables más influyentes son: 1) hizo lo posible porque aprendiera, 2) aprender con profundidad, 3) trabajar agradablemente, 4) preparación de clases, 5) motivar temas tratados y 6) preocuparse porque aprendan. Se concluye que la identificación de estas variables facilita el diseño de políticas educativas enfocadas en los estudiantes y los docentes.

Resumen La comunidad científica internacional no tiene dudas hoy en asumir que las inscripciones son un medio de comunicación con intención de notoriedad, universalidad - dentro del grupo social que les da origen- y mayor o menor grado de perdurabilidad. De ahí que haya sido el mecanismo utilizado, entre otros, por artistas y escultores para acompañar a sus programas iconográficos con la intención de completarlos y ofrecer mayor profundidad comunicativa que la que se puede lograr únicamente con la imagen. Este es sin duda el objetivo perseguido por el artista (o los artistas) que realizaron los retablos de la Duda y la Pasión para la capilla funeraria de los Caparroso de la Catedral de Pamplona. Este mecanismo - texto+imagen -, no representa novedad alguna pero sí lo es la utilización de distintos tipos gráficos dentro de un mismo conjunto epigráfico. Este fenómeno es propio y casi exclusivo de la epigrafía de transición entre el ocaso medieval y los albores de la modernidad. Es por ello que nuestro estudio se centra en el análisis paleográfico de estos retablos tratando de arrojar luz sobre algunas incógnitas que aún permanecen sin resolver.

Abstract The international scientific community has no doubts today in assuming that the inscriptions are a means of communication with the intention of notoriety, universality -within the social group that gives rise to them- and a greater or lesser degree of durability. Hence, it has been the mechanism used, among others, by artists and sculptors to accompany their iconographic programs with the intention of completing them and offering greater communicative depth than that which can be achieved solely with images. This is undoubtedly the objective pursued by the artist (or artists) who created the altarpieces of Doubt and Passion for the Caparroso funeral chapel in Pamplona Cathedral. This mechanism - text+image -, does not represent any novelty, but the use of different graphic types within the same epigraphic group does. This phenomenon is characteristic of and almost exclusive to the epigraphy of the transition between the medieval decline and the dawn of modernity. That is why our study focuses on the paleographic analysis of these altarpieces trying to shed light on some unknowns that still remain unresolved.

Abstract Critical thinking is a fundamental competence in current educational approaches; however, it has been the subject of diverse definitions, requiring a comprehension from its epistemology, theorization, and praxis. The objective of this research was to analyze notions about critical thinking and pedagogical practices in a group of Latin American teachers. The qualitative-critical paradigm was used through the hermeneutic method. The selection of participants was carried out through theoretical saturation sampling, obtaining a group of eight teachers to whom in-depth non-directive interviews were applied. In the analysis of results, 5 categories emerged: 1) Notions about critical thinking, in which the tendency towards a cognitive and rational emphasis is evident; 2) Didactic praxis, expressing greater mastery of linguistic content subjects as appropriate to promote critical thinking; 3) Self-assessment and need for greater reflection and training on teaching praxis in the area, 4) Curriculum and educational policies, in which inconsistencies between curricula and classroom practice are exposed, and 5) Critical thinking and performance academic, which exposes a non-linear relationship between both concepts. It is concluded that it is essential to avoid determinisms based on skills that express critical thinking and instead promote complex approaches that allow including cultural, social and ethical experiences also inherent to the process.

Resumen El pensamiento crítico es una competencia fundamental en los actuales enfoques educativos, sin embargo, ha sido objeto de definiciones diversas, exigiendo un abordaje desde su epistemología, teorización y praxis. Esta investigación tuvo como objetivo analizar las nociones sobre el pensamiento crítico y las prácticas pedagógicas aplicadas en el aula por docentes latinoamericanos. Se acudió al paradigma cualitativo-crítico a través del método hermenéutico. La selección de participantes se realizó mediante el muestreo por saturación teórica, obteniéndose un grupo de ocho docentes a quienes se aplicaron entrevistas no directivas a profundidad. En el análisis de resultados emergieron cinco categorías: 1) nociones sobre pensamiento crítico, en las cuales se evidencia la tendencia a un énfasis cognitivo y racional; 2) praxis didáctica, expresando mayor dominio de las asignaturas de contenido lingüístico como adecuadas para promover el pensamiento crítico; 3) autoevaluación y necesidad de mayor reflexión y capacitación sobre la praxis docente en el área; 4) currículo y políticas educativas, en la cual se exponen incongruencias entre los currículos y la práctica de aula; 5) pensamiento crítico y rendimiento académico, que expone una relación no lineal entre ambos conceptos. Se concluye que es fundamental evitar los determinismos basados en habilidades que expresan el pensamiento crítico y en su lugar promover aproximaciones complejas que permitan incluir experiencias culturales, sociales y éticas que son también inherentes al proceso.

Abstract In Ecuador, Artisanal and Small-Scale Mining, MAPE, is an activity of national relevance. Historically there are three provinces with great potential and mining tradition, which are: El Oro, Zamora Chinchipe and Azuay. In this sense, in the province of El Oro, a large percentage of the economically active population depends directly or indirectly on the exploitation of highly profitable minerals. The key aspects for the development of underground operations of the MAPE regime are the drilling and blasting activities, where there is a great opportunity for improvement, efficiently managing the design of the grid, the execution of the drilling, the amount of explosive and the way it is charged, which are the factors that define the result of the blasting; same that is valued in function of the depth of cut or advance and of the uniformity of the structure of the section. For the development of this research, the baseline survey was carried out through technical visits to the study sector (Zaruma - Portovelo mining district), where traditional work procedures were observed, and then, based on the experimental method, technical variations were made in regarding the firing diagram, specific charge, specific perforation and type of explosive. These traditional (empirical) procedures, based on the driller's field experience, cause, among other things, the inefficiency of the advance, problems to maintain the dimensions of the section, over breaking of the working fronts, and one of the most relevant factors, the insecurity of the personnel who in many cases remain inside the mine for more than 10 hours.The main results show that the best tests were those that used the emulsion/ANFO (Amonium Nitrate Fuel Oil) combination, obtaining an advance percentage of approximately 95%, considered optimal within the operation. It was also evidenced that the Ammonium Nitrate commonly used in ASM needs a specific charge of greater power to meet the objective of the blasting.

Resumen En Ecuador, la Minería Artesanal y de Pequeña Escala, MAPE, es una actividad de relevancia nacional. Históricamente existen tres provincias de amplio potencial y de tradición minera, que son: El Oro, Zamora Chinchipe y Azuay. En este sentido, en la provincia de El Oro, gran porcentaje de la población económicamente activa, depende directa o indirectamente de la explotación de minerales de alta rentabilidad. Uno de los aspectos clave para el desarrollo de las operaciones subterráneas del régimen MAPE, son las actividades de perforación y voladura, en donde existe una gran oportunidad de mejora, gestionando de manera eficiente el diseño de la malla, la ejecución de la perforación, la cantidad de explosivo y la forma de cargado, que son los factores que definen el resultado de la voladura; mismo que es valorado en función de la profundidad de corte o avance y de la uniformidad de la estructura de la sección. Para el desarrollo de esta investigación se realizó el levantamiento de la línea base mediante visitas técnicas al sector de estudio (distrito minero Zaruma - Portovelo), donde se observaron los procedimientos tradicionales de trabajo, para luego, con base al método experimental realizar variaciones técnicas en cuanto al diagrama de disparo, carga específica, perforación específica y tipo de explosivo. Estos procedimientos tradicionales (empíricos), basados en la experiencia de campo del perforista, ocasiona entre otras cosas la ineficiencia del avance, problemas para mantener las dimensiones de la sección, sobre rotura de los frentes de trabajo, y uno de los factores más relevantes, la inseguridad del personal que en muchos casos permanece en el interior de la mina por más de 10 horas. Entre los principales resultados se obtuvo que los mejores ensayos fueron los que se utilizó la combinación emulsión/ANFO (Amonium Nitrate Fuel Oil), obteniendo un porcentaje de avance de aproximadamente 95%, considerado dentro de la operación como óptimo. Así también se evidenció que el Nitrato de Amonio de uso habitual en la MAPE, necesita una carga específica de mayor poder para cumplir con el objetivo de la voladura.

Resumen: La orientación emprendedora es crucial para que los agricultores desempeñen su actividad económica con mayor crecimiento. El entorno institucional y la colaboración juegan un papel importante para desarrollar habilidades de emprendimiento. El objetivo de este estudio fue determinar el efecto mediador de las redes de colaboración en la relación de los pilares institucionales y la orientación emprendedora de los campesinos. Se tomó como base la teoría neoinstitucional, la teoría del capital social y la teoría de los recursos y capacidades. Se hizo un estudio empírico con base en un modelo de ecuaciones estructurales. Se realizó un levantamiento de información con 192 productores agrícolas localizados en el estado de Aguascalientes. En la postura emprendedora, la proactividad fue más importante que arriesgarse o ser más innovador para abarcar con mayor profundidad el mercado. La mediación de las redes de colaboración entre los agricultores ayuda con los costos de las regulaciones, el desconocimiento del entorno institucional y la administración de la actividad agrícola.

Abstract: Entrepreneurial orientation is crucial for farmers to carry out their economic activity with greater growth. The institutional environment and collaboration play an important role in de veloping entrepreneurial skills. The objective of this study was to determine the mediating effect of collaboration networks in the relationship between institutional pillars and the entrepreneurial orientation of peasants. The neoinstitutional theory, the theory of social capital and the theory of resources and capabilities are taken as a theoretical basis. It is an empirical study based on a structural equation model. An information survey was carried out with 192 agricultural producers located in the state of Aguascalientes. Relevant results were obtained on the involvement of the entrepreneurial stance, taking into account that the dimension of proactivity is more important than taking risks or being more innovative to cover the market in greater depth. An important finding was that the mediation of collaborative networks between farmers helps lower the costs of regulations and overcome the lack of knowledge about the institutional context and agricultural activity management.

ABSTRACT: The research presented in this article is based on the practical observation that certain support measures presented as inclusive can have an exclusionary effect. In order to analyse this paradox in greater depth, qualitative research has been carried out, with an exploratory sequential design that contrasts an extensive literature review on educational support with the documentary analysis of the narrative records produced by a mixed working group, made up of teachers from different pre-school, primary and secondary schools, together with university lecturers. Once the critical supports had been identified, a documentary analysis of the regulations in Catalonia was carried out and, finally, two discussion groups were held with teachers experienced in inclusive practices. The results show the inclusive value of some support practices when they meet certain conditions and others that are intrinsically detrimental to inclusive objectives. It shows the role of both inclusive education policy makers and teachers in ensuring the most effective and inclusive supports, which is a process of transformation of our schools and education systems.

RESUMEN: La investigación presentada en este artículo parte de la constatación práctica de que determinadas medidas de apoyo presentadas como inclusivas pueden tener un efecto excluyente. Para analizar esta paradoja con mayor profundidad se ha llevado a cabo una investigación cualitativa, con un diseño exploratorio secuencial que contrasta una amplia revisión bibliográfica sobre el apoyo educativo con el análisis documental de las actas narrativas producidas por un grupo mixto de trabajo, formado por docentes de diferentes centros de infantil, primaria y secundaria, junto con profesorado universitario. Identificados los apoyos críticos, se realizó un análisis documental de la normativa de Cataluña y, finalmente, se mantuvieron dos grupos de discusión con profesorado experimentado en prácticas inclusivas. Como resultados, constatamos el valor inclusivo de algunas prácticas de apoyo cuando cumplen determinados condicionantes y otras que resultan intrínsecamente perjudiciales para los objetivos inclusivos. Se muestra el papel que tienen, tanto los responsables de las políticas educativas inclusivas como el profesorado, para garantizar los apoyos más eficaces e inclusivos, lo que constituye un proceso de transformación de nuestras escuelas y sistemas educativos.

Abstract. Marca-Zevallos, M. J.; W. Galiano, R. Chevarría, G. Sebastián, K. Huamani, J. A. Ochoa & J. Mendoza. 2024. Influence of environmental factors on aquatic macrophytes composition in oxbow lakes in the Southern Peruvian Amazon. Darwiniana, nueva serie 12(1): 170-191. Species richness and composition of aquatic macrophytes are influenced by morphometry and physical and chemical conditions of the aquatic body. However, the influence of these variables has not been confirmed for oxbow lakes or commonly called “cochas” in the Peruvian Amazon. 10 cochas disconnected from the main course of the river were investigated in the Southern Amazon of Peru to know 1) the species richness of aquatic macrophytes, 2) their life form, and 3) the influence of area and depth of the water body and, transparency, pH, dissolved oxygen, total dissolved solids, and temperature of the water on species richness and composition changes of aquatic macrophytes. 68 taxa were reported, where Cyperaceae and Poaceae were the most diverse families. Moreover, he predominant life forms were emergent (47,1 %) and amphibian (36,8 %). Finally, cochas with greater area, pH, and dissolved oxygen, at the same time, with lower temperature, shelter a higher species richness and favour strictly aquatic species establishment, indicating that exists a species turnover along the conformed gradient by the association of these variables. These results demonstrate that southern Amazon of Peru has an important aquatic macrophytes richness that is associated with area, pH, dissolved oxygen, and temperature of the aquatic body.

Resumen Marca-Zevallos, M. J.; W. Galiano, R. Chevarría, G. Sebastián, K. Huamani, J. A. Ochoa & J. Mendoza. 2024. Influencia de factores ambientales en la composición de macrofitas acuáticas en lagos (cochas) de la Amazonía sur del Perú. Darwiniana, nueva serie 12(1): 170-191. La riqueza y composición de macrofitas acuáticas está influenciada por la morfometría y las condiciones físicas y químicas del cuerpo acuático. Sin embargo, el efecto de estos factores en las comunidades vegetales no ha sido corroborado para los lagos con forma de herradura o comúnmente llamados como “cochas” de la Amazonía peruana. En el presente estudio se evaluó 10 cochas desconectadas del curso principal del río en la Amazonia Sur del Perú para conocer 1) la riqueza de macrofitas acuáticas, 2) su forma de vida y 3) la influencia del área y la profundidad del cuerpo acuático, la transparencia, pH, oxígeno disuelto, sólidos totales disueltos y la temperatura del agua en la riqueza y en los cambios de la composición de especies. Se reportó 68 taxones, donde Cyperaceae y Poaceae fueron las familias más diversas. Además, las formas de vida predominantes fueron las emergentes (47,1 %) y anfibias (36,8 %). Finalmente, se encontró que cochas con mayor área, pH y oxígeno disuelto, a la vez, con menor temperatura, abrigan una mayor riqueza de especies y favorecen el establecimiento de especies estrictamente acuáticas, indicando que existe un recambio de especies a lo largo de la gradiente conformada por la asociación de estas variables. Estos resultados demuestran que la Amazonía sur del Perú posee una importante riqueza de macrofitas acuáticas que está asociada al área, pH, oxígeno disuelto y temperatura del cuerpo acuático.

Abstract Background: The patient-doctor relationship promotes shared decision-making and patient-centered care, implying emotional intelligence and good communication, leading to positive health outcomes. Objective: To culturally adapt the Patient-Doctor Depth of Relationship Scale (PDDR) and convergently validate with the Patient Enablement Instrument (PEI) to ascertain the correlation between PDR and enablement. Methods: Cross-cultural adaptation process of the PDDR questionnaire to European Portuguese, through translation, linguistic verification, and reverse translation and also its understandability. Convergent validation with the Patient Enablement Instrument (PEI), after their doctor’s appointment, in a general practice/family medicine health unit. Context information, such as gender, age, living status, educational level, monthly income, Socioeconomic Deprivation Index (SEDI), and clinical appointment with the usual doctor, was also collected. Results: PDDR showed good understandability and acceptance and strong internal consistency (Cronbach’s α=0.785; intraclass correlation coefficient=0.785). A total of 81 patients participated in the study, most of them female (70.4%). There was a significant difference in the PDDR total score depending on whether the appointment had been with the usual doctor (p<0.001). Both a weak positive non-significant correlation between PDDR and SEDI total scores (ρ=0.300; p=0.790) and a moderate significant negative correlation between PDDR total score and PEI (ρ=-0.396; p<0.001) were found. Conclusion: The cross-cultural adaptation of the PDDR questionnaire to European Portuguese was carried out. PDDR proved to be a reasonable measure of the patient-doctor relationship, allowing greater patient enablement when a deeper patient-doctor relationship exists.

Resumo Introdução: A relação médico-doente promove a decisão partilhada, o cuidado centrado no doente e implica o uso de inteligência emocional e de boa comunicação, originando bons resultados em saúde. Objetivo: Realizar a adaptação cultural de Patient-Doctor Depth of Relationship Scale (PDDR) e validação convergente com Patient Enablement Instrument (PEI), verificando a correlação entre a relação médico-doente e a capacitação pela consulta. Métodos: Adaptação cultural de PDDR para português, por tradução, verificação linguística e retro-tradução para inglês. Trabalho observacional transversal correlacional entre PDDR (melhor se total mais alto) e PEI (melhor se total mais baixo), depois da consulta médica numa Unidade de Saúde Familiar (USF). Estudo de resultados também segundo variáveis de contexto sexo, idade, residência individual ou partilhada, escolaridade, rendimento mensal com estes três se construindo o SEDI (como proxi de classe socioeconómica) e se consulta realizada com o médico de família. Resultados: A PDDR demonstrou boa compreensibilidade, aceitabilidade e forte consistência interna (α de Cronbach=0,785; coeficiente de correlação intraclasse=0,785). Participaram 81 doentes no estudo, a maioria mulheres (70,4%). Verificaram-se diferenças significativas na pontuação total de PDDR em função de a consulta ter ou não ocorrido com o médico habitual (p<0,001). Constatou-se correlação positiva fraca não significativa entre valores totais de PDDR e SEDI (ρ=0,300; p=0,790) e negativa moderada significativa entre a pontuação total de PDDR e de PEI (ρ=-0,396; p<0,001). Conclusão: Foi realizada a adaptação cultural e validação do questionário PDDR para português, que provou ser uma medida adequada de profundidade na relação médico-doente, demonstrando que uma forte relação médico-doente capacita mais o doente após a consulta.

Abstract: The clay fraction of earthen plasters is the part responsible for the acquisition of cohesion and adherence that they possess against deterioration factors. Adherence is the property responsible for keeping the plaster together with the wall and is influenced by the percentage content of clay as well as by its mineralogy and the heterogeneity of minerals that may be present. However, it is still unknown in depth how clay minerals perform in the adherent properties of earthen plasters when the composition is heterogeneous in the material. The objective of this study is to evaluate the incidence of the mineralogical complexity of clay mineralogy in the variability of the adherence of earth plasters. To evaluate the variability, considering that the mineralogy of the soils depends directly on the place and the formation processes, eight soils from Tucumán (Argentina) corresponding to different physiographic units were analyzed. A methodology was designed for sample preparation that allows soils to be compared through adhesion tests. They were characterized by XRD to determine their mineralogical composition and by the hydrometric method to determine their granulometry. To evaluate the adherence of mixtures made with the respective soils, it was proposed in the first instance to compensate the granulometry of the soils to equate them and, once the plasters were made, this property was evaluated through shear and pull-off tests. The results showed that they allowed us to identify that the soils presented a pattern of mineralogical composition common to all the physiographic units, made up of the Ill and K pair, the former being predominant. For this pattern, it was observed in particular that there is a positive correlation between the increase in Ill content with the increase in the adhesive strength of the plasters. Clay minerals from the Sm group also contribute to the increase in adherence when the percentage is greater than or equal to 11%. On the contrary, K and Cl do not influence the increase in adhesive strength