University of Extremadura
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David Martín Marcos (2023). People of the Iberian Borderlands: Community and Conflict between Spain and Portugal, 1640-1715
No full textEs una reseña del libro: David Martín Marcos. Pueblos de las fronteras ibéricas: comunidad y conflicto entre España y Portugal, 1640-1715. New York : Routledge, 2023. ISBN 978-0-367-75820-2, 278 p.It is a review of the book: David Martín Marcos, People of the Iberian Borderlands: Community and Conflict between Spain and Portugal, 1640-1715. New York : Routledge, 2023. ISBN 978-0-367-75820-2, 278 p
Acta del fallo del jurado del VI Certamen Literario de Cartas de [Des]amor “Mercedes Gallego”
No full textSe presenta el Acta del VI Certamen Literario de Cartas de (Des)amor "Mercedes Gallego"
Los miembros del jurado son: Mercedes Gallego, Gloria Miranda Sánchez Porro, Vanesa Sánchez Martín Mora
Lupe Rangel Amo
Elena Casado Blanco
Daniel Cortés González
Las obras presentadas y autores de las mismas son:
EL CUERPO INMINENTE Sansón Carrasco
ESE ASCENSOR Carta revertida
SIN TITULO La India Brava
NO PUDIMOS SER Sabel Gante
CARTA DE UN NAUFRAGO El Pájaro
El ganador es:
EL CUERPO INMINENTE de Sansón CarrascoThe Minutes of the VI Literary Contest Cartas de (Des)amor "Mercedes Gallego" are presented
The members of the jury are:
Mercedes Gallego
Gloria Miranda Sánchez Porro
Vanesa Sánchez Martín Mora
Lupe Rangel Amo
Elena Casado Blanco
Daniel Cortés González
The works presented and their authors are:
EL CUERPO INMINENTE Sansón Carrasco
ESE ASCENSOR Carta revertida
SIN TITULO La India Brava
NO PUDIMOS SER Sabel Gante
CARTA DE UN NAUFRAGO El Pájaro
The winner is:
EL CUERPO INMINENTE Sansón Carrasc
¿Qué es lo que realmente entendemos por plagio y autoplagio? Una contribución
No full textEn abril de 2023 se realizó un Taller de Capacitación en métodos mixtos en Educación e Investigación en Salud en la Universidad de Aveiro. En esta capacitación se planteó un problema sobre qué es el plagio y/o el autoplagio, encontrándonos con muy pocas respuestas correctas sobre la definición de estos conceptos. Esto nos llevó a cuestionarnos qué se sabe realmente sobre este tema y dónde podemos encontrar ejemplos concretos de plagio y autoplagio que han pasado desapercibidos en la sociedad. Para llevar a cabo este estudio, se realizó una revisión bibliométrica y sistemática de literatura, entre los años 2014 y 2022, en las bases de datos
Internacionales WOS y SCOPUS con el uso de las palabras-claves “Plagio”, “Científico” y “Educación”, utilizando el Software VOSViewer. Como resultado de esta búsqueda, fueron seleccionados 40 documentos con mayor impacto en el área de educación, analizando el contenido de sus resúmenes y conclusiones por medio del CAQDAS NVivo. Entre las conclusiones obtenidas, observamos que existe una necesidad real de dar a conocer: diversas instancias recurrentes de plagio y autoplagio que ocurren en entornos académicos de educación superior y modelos analíticos que arrojen luz sobre los momentos propensos a estas conductas, ofreciendo recomendaciones concretas para prevenir su persistencia. Como limitación, por ser este un estudio exploratorio, no fueron comparados los resultados obtenidos con otras bases de datos, como por ejemplo ERIC. Por último, para obtener en el futuro datos más significativos, pretendemos ampliar esta investigación realizando entrevistas y grupos focales a diferentes estudiantes y profesionales de la educación, para comparar las informaciones compiladas con nuevas búsquedas, más amplias, que incluyan otras bases de datos.In April 2023, a Training Workshop on mixed methods in Health Education and Research was held at the University of Aveiro. In this training, a problem was posed about what plagiarism and/or selfplagiarism is, and we found very few correct answers regarding the definition of these concepts. This led us to question what is really known about this topic and where we can find concrete examples of plagiarism and self-plagiarism that have gone unnoticed in society. To carry out this study, a bibliometric and systematic review of the literature was carried out, between the years 2014 and 2022, in the International databases WOS and SCOPUS with the use of the keywords “Plagiarism”, “Scientific” and “Education”, using VOSViewer Software. As a result of this search, 40 documents with the greatest impact on education were selected, analyzing the content of their summaries and conclusions through CAQDAS NVivo. Among the conclusions obtained, we observe that there is a real need to make known: various recurrent instances of plagiarism and selfplagiarism that occur in academic environments of higher education and analytical models that shed light on the moments prone to these behaviours, offering concrete recommendations to prevent them. his persistence. As a limitation, since this is an exploratory study, the results obtained were not compared with other databases, such as ERIC. Finally, to obtain more significant data in
the future, we intend to expand this research by conducting interviews and focus groups with different students and education professionals, to compare the information compiled with new, broader searches that include other databases.Trabajo financiado por la FCT - Fundación para la Ciencia y la Tecnología, en el ámbito de la beca de doctorado con referencia 2020.07331.BD, y por Fondos Nacionales a través de la FCT - Fundación para la Ciencia y la Tecnología, IP, en el ámbito del proyecto UIDB/00194/2020, referente al CIDTFF - Centro de Investigación en Didáctica y Tecnología en la Formación de Formadores, Portugal y financiada por el Fondo Europeo de Desarrollo Regional y Junta de Extremadura. Proyecto GR21093.peerReviewe
Evaluation of active and reactive manifestations in female padel players. Influence of the playing side
No full textDurante los últimos años el pádel ha sufrido un crecimiento exponencial en todos los ámbitos, como se puede apreciar al observarse el importante aumento en el nú-mero de licencias, la incorporación de nuevos circuitos profesionales y un incremento significativo de publicaciones científicas. Sin embargo, son aún escasos los estudios que profundicen en el análisis de las características condicionales de los jugadores de pádel atendiendo al lado de la pista en el que desarrollan su juego. Diversas investiga-ciones han evaluado la fuerza explosiva del tren inferior en los deportes de raqueta, pero en el pádel son muy escasas, limitadas y heterogéneas las evidencias existentes, en especial atendiendo al lado de juego, y en particular realizadas en la competición femenina. En este sentido, el objetivo de este estudio se centra en evaluar y analizar las manifestaciones de la fuerza activa y reactiva del tren inferior en el pádel femenino en función del lado de juego. Se utilizaron los test de salto desde sentadilla (SJ) y el contramovimiento (CMJ), para valorar las manifestaciones activas y reactivas de la fuerza de las extremidades inferiores, además de la potencia desarrollada. Los resul-tados obtenidos no mostraron diferencias significativas en la altura de los saltos SJ y CMJ, ni tampoco en la potencia desarrollada. Sin embargo, se aprecia que todas las variables físicas analizadas son ligeramente superiores en aquellas jugadoras situadas en la zona izquierda de la pista. Las diferencias halladas en función del lado de juego podrían ser el resultado de adaptaciones musculares específicas de carácter crónico derivadas de un entrenamiento y competición altamente especializado. Los resulta-dos obtenidos podrían sugerir la necesidad de planificar y desarrollar un entrena-miento diferenciado atendiendo al lado de juego en el que se compite en el deporte del pádel. Se hace necesario realizar nuevas investigaciones en donde se contrasten los resultados hallados en esta investigaciónOver the last years padel has experienced an exponential growth in all areas, as can be seen in the significant number of licences, the incorporation of new profes-sional circuits and a significant increase in the number of scientific publications. How-ever, there are still scarce research that analyse in depth the conditional characteris-tics of padel players according to the side of the court which they play on. Several studies have evaluated the explosive strength of the lower body in racket sports, but in padel the existing evidence is scarce, limited and heterogeneous, especially regard-ing the side of play, and particularly in women's competition. In this sense, the aim of this study is focused on evaluating and analysing the manifestations of active and reactive strength of the lower body in women's padel according to the side of play. The squat jump test (SJ) and the countermovement test (CMJ) were used to assess the active and reactive manifestations of lower limb strength, in addition to the power performed. The results obtained showed no significant differences in the height of the SJ and CMJ jumps, neither in the power performed. However, it can be seen that all the physical variables analysed are slightly higher in those players located on the left side of the court. Depending on the side of play, the differences found could be the result of specific chronic muscular adaptations derived from highly specialized training and competition. The results obtained suggested the need to design and carry out differentiated trainings taking according to the side of the game in which the players compete in padel tennis. Further research is needed to contrast the results found in this investigation.Esta investigación fue subvencionada mediante una ayuda a proyectos de investigación recibida por el Instituto de Estudios Altoaragoneses de la Diputación Provincial de Huesca (85/2012), y mediante fondos públicos recibidos de la Dirección General de Investigación e Innovación del Gobierno de Aragón al grupo de investigación de referencia S53_23R Entrenamiento, Actividad Física y Rendimiento Deportivo (ENFYRED).peerReviewe
Opinión de padres y entrenadores sobre las reglas de competición actuales y modificadas en el fútbol para la promoción de valores
No full textLos actuales sistemas competitivos en el fútbol no son, en muchos casos, los idóneos para lograr un adecuado proceso de enseñanza-aprendizaje por ser inadecuados a las características y preferencias de los niños y niñas. Los objetivos de este trabajo son diseñar y validar un cuestionario, para que permita, en segundo lugar, conocer la opinión de un grupo de padres/madres y entrenadores/as sobre el grado de satisfacción con las actuales normas federativas, las modificadas en la liga interna de valores del FC Cartagena y los beneficios que consideran de las nuevas normas. Para ello, se diseñó y validó un cuestionario, por un grupo de expertos (16,3 ± 8,74 años de experiencia), que fue administrado a 21 entrenadores (edad = 29,9±8,56 años y 6,90±6,73 años de experiencia) y 57 padres/madres (edad = 40,5±10,5 años) de jugadores/as de fútbol de las categorías sub 10 (41,65%) y sub 12 (58,35%). Los resultados mostraron que, a pesar de mostrar satisfacción general con el reglamento actual, consideraron mejor el reglamento modificado con reglas más adecuadas para que los niños y niñas consiguieran mejoras en el proceso de enseñanza-aprendizaje y en el fomento de valores. El reglamento de la liga interna de valores puede ser utilizado por clubes y federaciones para implantar un sistema competitivo que permita un mayor desarrollo personal, permitiendo así un equilibrio competitivo al estar estructurado por niveles; y un aumento de la motivación, para conseguir una mayor participación e igualdad de oportunidades que en los sistemas competitivos propuestos por la federación.The current competitive systems in soccer are not, in many cases, the ideal ones to achieve an adequate teaching-learning process because they are inadequate to the characteristics and preferences of the children. The objectives of this work are to design and validate a questionnaire, so that it allows, secondly, to know the opinion of a group of parents and coaches about the degree of satisfaction with the current federative rules, those modified in the internal league of values of FC Cartagena and the benefits they consider from the new rules. For this, a questionnaire was designed and validated, by an expert group (16.3 ± 8.74 years of experience), which was administered to 21 coaches (age = 29.9±8.56 years and 6.90±6.73 years of experience) and 57 parents (age = 40.5±10.5 years) from the under 10 (41,65%) and under 12 (58,35%). The results showed that, despite showing general satisfaction with the current rules, they considered the modified regulation better with more appropriate rules for children to achieve improvements in the teaching-learning process and in the promotion of values. The rules of the internal league of values can be used by clubs and federations to implement a competitive system that allows greater personal development, thus allowing a competitive balance by being structured.peerReviewe
Influence of moisture content on some mechanical properties of wheat
No full textThe loads generated inside agricultural silos under static and dynamic conditions depend on the mechanical properties of the materials stored inside them. Silo calculation methodologies are based on these mechanical properties. Although it is known that moisture content greatly influences the values reached by these mechanical properties, only a few studies have been conducted to determine them. The present work determines the angle of internal friction, the apparent cohesion, the dilatancy angle and the apparent specific weight of wheat when subjected to different moisture contents. Direct shear and oedometer assay devices were used. In addition, a climatic chamber was used to moisten the wheat samples used in this work. From the different assays conducted, it could be observed that the values of the angle of internal friction, the apparent cohesion and the apparent specific weight were like those found in the literature. However, no values of the dilatancy angle of wheat as influenced by moisture content were previously reported. The values obtained here for this parameter are within the range of those specified for dry wheat samples. Finally, higher apparent specific weight values were observed as moisture content increased up to 13.4%, then decreasing at a moisture content of 15.5%. This was not expected according to the results stated by some authors, although others reported a similar tendency. The values here provided can be used in silo load calculations involving numerical methods for modeling technological processes.This research and APC was funded by the Spanish “Agencia Estatal de Investigación” via the research project “Study of the structural behavior of corrugated wall silos using Discrete Element Models (SILODEM)”, grant number PID2019-107051GB-I00/AEI/10.13039/501100011033.peerReviewe
Reinvigorating aza-Michael reactions under ionic liquid catalysis: a greener approach
No full textCholinium α-amino carboxylates, which debuted in the ionic liquid arena over a decade ago, exhibit superior stability and suitable physical properties relative to other RTILs. Although synthetic pursuits in such media, leveraging their dual role as solvents and catalysts, have been scarce so far, we herein illustrate their catalytic advantage in aza-Michael reactions in terms of low loading, acceleration and improved yields with respect to conventional conditions and other imidazolium-based ILs. These highly structured salts most likely act through multiple and cooperative non-covalent interactions. These mechanistic features have also been investigated through high-level computational analyses as well.Junta de Extremadura’ and ‘Fondo Europeo de Desarrollo Regional’ (European Regional Development Fund) for financial support (Grants GR21107, IB20026, and IB16167). Also, we thank the Research & Technological Innovation and Supercomputing Center of Extremadura (Cenits) and COMPUTAEX Foundation for allowing us to use the LUSITANIA computer resources.peerReviewe
Quantitative Analysis of the Human Semen Phosphorometabolome by 31P-NMR
No full textPhosphorus-containing metabolites occupy a prominent position in cell pathways. The phosphorometabolomic approach in human sperm samples will deliver valuable information as new male fertility biomarkers could emerge. This study analyzed, by 31P-NMR, seminal plasma and whole semen from asthenozoospermic and normozoospermic samples (71% vs. 27% and 45% vs. 17%, total and progressive sperm motility, respectively), and also ejaculates from healthy donors. At least 16 phosphorus-containing metabolites involved in central energy metabolism and phospholipid, nucleotide, and nicotinamide metabolic pathways were assigned and different abundances between the samples with distinct sperm quality was detected. Specifically, higher levels of phosphocholine, glucose-1-phosphate, and to a lesser degree, acetyl phosphate were found in the asthenozoospermic seminal plasma. Notably, the phosphorometabolites implicated in lipid metabolism were highlighted in the seminal plasma, while those associated with carbohydrate metabolism were more abundant in the spermatozoa. Higher levels of phosphocholine, glucose-1-phosphate, and acetyl phosphate in the seminal plasma with poor quality suggest their crucial role in supporting sperm motility through energy metabolic pathways. In the seminal plasma, phosphorometabolites related to lipid metabolism were prominent; however, spermatozoa metabolism is more dependent on carbohydrate-related energy pathways. Understanding the presence and function of sperm phosphorylated metabolites will enhance our knowledge of the metabolic profile of healthy human sperm, improving assessment and differential diagnosisLos metabolitos que contienen fósforo ocupan un lugar destacado en las vías celulares. El enfoque fosforometabolómico en muestras de esperma humano proporcionará información valiosa, ya que podrían surgir nuevos biomarcadores de fertilidad masculina. En este estudio se analizaron, mediante 31P-NMR, plasma seminal y semen completo de muestras astenozoospérmicas y normozoospérmicas (71% frente a 27% y 45% frente a 17%, motilidad espermática total y progresiva, respectivamente), y también eyaculados de donantes sanos. Se asignaron al menos 16 metabolitos que contienen fósforo implicados en el metabolismo energético central y en las vías metabólicas de los fosfolípidos, los nucleótidos y la nicotinamida, y se detectaron diferentes abundancias entre las muestras con distinta calidad de esperma. Concretamente, en el plasma seminal astenozoospérmico se encontraron niveles más elevados de fosfocolina, glucosa-1-fosfato y, en menor grado, acetilfosfato. En particular, los fosforometabolitos implicados en el metabolismo de los lípidos destacaban en el plasma seminal, mientras que los asociados al metabolismo de los hidratos de carbono eran más abundantes en los espermatozoides. Los niveles más elevados de fosfocolina, glucosa-1-fosfato y acetilfosfato en el plasma seminal de mala calidad sugieren su papel crucial en el soporte de la motilidad espermática a través de vías metabólicas energéticas. En el plasma seminal destacaban los fosforometabolitos relacionados con el metabolismo de los lípidos; sin embargo, el metabolismo de los espermatozoides depende más de las vías energéticas relacionadas con los hidratos de carbono. Comprender la presencia y función de los metabolitos fosforilados del esperma mejorará nuestro conocimiento del perfil metabólico del esperma humano sano, mejorando la evaluación y el diagnóstico diferencial.This research was funded by the regional Grant from Junta de Extremadura (Spain) IB20154 and GR18094.peerReviewe
Identifying optimal zones for avocado ("Persea americana" Mill) cultivation in Iberian Peninsula: a climate suitability analysis
No full textIn recent decades, the cultivation of avocados (Persea americana Mill) has expanded throughout the Iberian Peninsula, with most of the production occurring on the Southern Atlantic and Mediterranean Coast, as well as in the Canary Islands. This expansion is due to high demand and high prices, which have made the crop very attractive. However, climatic suitability criteria have not always been followed, putting sustainability at risk. Avocados originate from tropical and subtropical areas and have very specific climatic requirements that must be met to ensure good production. This study analyzed the key climatic variables, including winter cold damage, pollen viability and flowering and fruit set temperatures. Using daily climate data from 1975 to 2022, advanced spatial analysis techniques were applied to produce suitability maps. The results indicate that the expansion of the crop is possible in certain areas of Southern Andalusia but not in the rest of the peninsula. Variables associated with low temperatures, such as cold damage (temperatures below 0 °C in winter) and conditions unfavorable for fruit set (minimum daily temperatures below 10 °C in spring), have been identified as the most restrictive factors. Specifically, the number of days with minimum temperatures above 10 °C in March and April appears to be the most limiting climatic factor for avocado cultivation in the Iberian Peninsula and the Balearic Islands. Andalusia and the Valencian Community have been identified as the most climatically suitable regions for avocado cultivation, with approximately 1,500,000 hectares recognized as potentially suitable for avocado production. This work provides valuable insights into the potential for sustainable agricultural intensification, the sustainability of agricultural decision-making and resilience to climate change.This research was funded by the Junta de Extremadura and the European Regional Development Fund (ERDF) through the GR18088 (Research Group RNM028).peerReviewe
Pyruvate enhances stallion sperm function in high glucose media improving overall metabolic efficiency
No full textIf a mechanism of more efficient glycolysis depending on pyruvate is present in stallion spermatozoa, detrimental effects of higher glucose concentrations that are common in current commercial extenders could be counteracted. To test this hypothesis, were incubated in a 67 mM Glucose modified Tyrode’s media in the presence of 1- or 10-mM pyruvate and in the Tyrode’s basal media which contains 5 mM glucose. incubated for 3 h at 37 ◦C in 67 mM Tyrode’s media with 10 mM pyruvate showed increased in comparison with aliquots incubated in Tyrode’s 5 mM glucose and Tyrode’s 67 mM glucose (57.1 ± 3.5 and 58.1 ± 1.9 to 73.0 ± 1.1 %; P < 0.01). Spermatozoa incubated in Tyrode’s with 67 mM glucose 10 mM pyruvate maintained the viability along the 64.03 ± 15.4 vs 61.3 ± 10.2), while spermatozoa incubated in 67 mM Glucose-Tyrode’s a decrease in viability (38.01 ± 11.2, P < 0.01). 40 mM oxamate, an inhibitor of the lactate dehydrogenase LDH, reduced sperm viability (P < 0.05, from 76 ± 5 in 67 mM Glucose/10 mM pyruvate to 68.0 ± 4.3 %, P < 0.05). Apoptotic markers increased in the presence of oxamate. (P < 0.01). UHPLC/MS/MS showed that 10 mM pyruvate pyruvate, lactate, ATP and NAD+ while phosphoenolpyruvate decreased. The that explain the improvement of in presence of 10 mM pyruvate involve the conversion of lactate to pyruvate and increased NAD+ enhancing the efficiency of the glycolysis.The authors received financial support for this study from the Ministerio de Ciencia-European Fund for Regional evelopment (EFRD), Madrid, Spain, grant PID2021-122351OB-I00. Junta de Extremadura- FEDER (IB 20008). GLGF holds a PhD grant from the Ministry of Science, Madrid, Spain (PRE2018-083354), LBR holds a PhD grant from the Ministry of Science, Madrid, Spain (PRE2022-103090).peerReviewe