Osteoma osteoide de calcáneo: caso clínico y revisión de la literatura

ResumenLa aparición de un osteoma osteoide en el pie es infrecuente. Una presentación atípica puede retrasar el diagnóstico y, por lo tanto, retrasar el tratamiento. Se presenta el caso de un varón de 27 años de edad, con dolor persistente en el pie de un año de evolución que fue tratado con la ablación percutánea por radiofrecuencia de un osteoma osteoide en el calcáneo. El paciente refirió un alivio inmediato del dolor y no tuvo ningún síntoma de recurrencia durante los 3 años de seguimiento.AbstractThe osteoid osteoma appearance of a foot is unusual. An atypical presentation may delay diagnosis and thus delay treatment. We report a case of a 27-year-old man with an 12-month history of persistent foot pain who underwent percutaneous radiofrequency ablation of an osteoid osteoma involving the calcaneus. The patient related an immediate relief of pain and had no recurrence of symptoms or the lesion at 3-year follow-up

The Effect of Hexamethylene Diisocyanate-Modified Graphene Oxide as a Nanofiller Material on the Properties of Conductive Polyaniline

Conducting polymers like polyaniline (PANI) have gained a lot of interest due to their outstanding electrical and optoelectronic properties combined with their low cost and easy synthesis. To further exploit the performance of PANI, carbon-based nanomaterials like graphene, graphene oxide (GO) and their derivatives can be incorporated in a PANI matrix. In this study, hexamethylene diisocyanate-modified GO (HDI-GO) nanosheets with two di erent functionalization degrees have been used as nanofillers to develop high-performance PANI/HDI-GO nanocomposites via in situ polymerization of aniline in the presence of HDI-GO followed by ultrasonication and solution casting. The influence of the HDI-GO concentration and functionalization degree on the nanocomposite properties has been examined by scanning electron microscopy (SEM), Raman spectroscopy, X-ray di raction (XRD), thermogravimetric analysis (TGA), tensile tests, zeta potential and four-point probe measurements. SEM analysis demonstrated a homogenous dispersion of the HDI-GO nanosheets that were coated by the matrix particles during the in situ polymerization. Raman spectra revealed the existence of very strong PANI-HDI-GO interactions via - stacking, H-bonding, and hydrophobic and electrostatic charge-transfer complexes. A steady enhancement in thermal stability and electrical conductivity was found with increasing nanofiller concentration, the improvements being higher with increasing HDI-GO functionalization level. The nanocomposites showed a very good combination of rigidity, strength, ductility and toughness, and the best equilibrium of properties was attained at 5 wt % HDI-GO. The method developed herein opens up a versatile route to prepare multifunctional graphene-based nanocomposites with conductive polymers for a broad range of applications including flexible electronics and organic solar cells

Inhibition of hyaluronidase activity by high-pressure treated onion

Onions exert their effects on human health via multiple different functions, including antioxidant, antiinflammatory, and antibacterial properties. Upregulation of hyaluronidase activity occurs in chronic inflammatory conditions. High hydrostatic pressure food processing offers the chance of producing functional foods, in the sense that not only preserve the nutritional, microbiological and sensorial quality of foods, but also can improve the extraction of potentially health-related compounds due to the effects of this technology on plant food structure. Onions are a good source of bioactive compounds, such as phenolic compounds and organosulfur compounds, which have been related to beneficial health effects mainly due to their antioxidant and antiinflammatory properties. In this study we evaluated the ability of onion treated by highpressure to inhibit in vitro hyaluronidase activity, as an in vitro measurement of its antiinflammatory activity.Peer Reviewe

The use of social network analysis in social support and care: a systematic scoping review protocol

Background: In recent decades, the literature on Social Network Analysis and health has experienced a significant increase. Disease transmission, health behavior, organizational networks, social capital, and social support are among the different health areas where Social Network Analysis has been applied. The current epidemiological trend is characterized by a progressive increase in the population's ageing and the incidence of long-term conditions. Thus, it seems relevant to highlight the importance of social support and care systems to guarantee the coverage of health and social needs within the context of acute illness, chronic disease, and disability for patients and their carers. Thus, the main aim is to identify, categorize, summarize, synthesize, and map existing knowledge, literature, and evidence about the use of Social Network Analysis to study social support and care in the context of illness and disability. Methods: This scoping review will be conducted following Arksey and O'Malley's framework with adaptations from Levac et al. and Joanna Briggs Institute's methodological guidance for conducting scoping reviews. We will search the following databases (from January 2000 onwards): PubMed, MEDLINE, Web of Science Core Collection, SCOPUS, CINAHL, PsycINFO, Cochrane Database of Systematic Reviews, PROSPERO, and DARE. Complementary searches will be conducted in selected relevant journals. Only articles related to social support or care in patients or caregivers in the context of acute illnesses, disabilities or long-term conditions will be considered eligible for inclusion. Two reviewers will screen all the citations, full-text articles, and abstract the data independently. A narrative synthesis will be provided with information presented in the main text and tables. Discussion: The knowledge about the scientific evidence available in the literature, the methodological characteristics of the studies identified based on Social Network Analysis, and its main contributions will highlight the importance of health-related research's social and relational dimensions. These results will shed light on the importance of the structure and composition of social networks to provide social support and care and their impact on other health outcomes. It is anticipated that results may guide future research on network-based interventions that might be considered drivers to provide further knowledge in social support and care from a relational approach at the individual and community levels

Spanish version of “Self-Efficacy for Writing Scale” (SEWS)

p. 86-91La autoeficacia es un constructo muy utilizado en Psicología. El presente estudio se centra en el ámbito educativo y, más concretamente, en la adaptación de la “Self-Efficacy for Writing Scale” (SEWS; Bruning, Dempsey, Kauffman, McKim, y Zumbrunn, 2013), desarrollada para me-dir autoeficacia para la escritura. Participaron en el estudio 512 estudiantes (78% mujeres, 22% hombres) de tres universidades españoles distintas. Todos ellos completaron un cuestionario que incluía la versión española de la escala SEWS, además de la Escala de Autoeficacia General y la Escala de Autoeficacia para la Escritura. Los resultados del análisis factorial explora-torio muestran que la prueba mantiene su dimensionalidad, con una va-rianza explicada de 65.86% y tres factores: Ideación (α = .90), Convencio-nes (α = .89), y Autorregulación (α = .90). Las correlaciones con la Escala de Autoeficacia General son elevadas, pero aún más con la Escala de Au-toeficacia para la Escritura, sugiriendo este último dato que se trata del mismo constructo. Asimismo, se encuentra que los hombres muestran ma-yores valores de autoeficacia en la escala SEWS (general) y en dos de sus dimensiones (Ideación y Convenciones). Finalmente, se discuten las impli-caciones de estos resultados, señalándose las principales limitaciones del es-tudio y sugerencias de investigación futuraS

Recopilación de Decimas Ancestrales como Estrategia Pedagógica para el Fortalecimiento de la Lectoescritura en los Estudiantes del Grado Segundo de Básica Primaria de la Institución Educativa del Municipio de Santa Bárbara de Iscuande.

Entrevista, Formato de Encuesta, Diario de Campo 1, Diario de Campo 2, Diario de Campo 3, Diario de Campo 4La presente propuesta, está enfocada en la problemática que presentan los estudiantes del grado segundo de básica primaria de la institución educativa politécnica del municipio santabárbara de Iscuande, en todo lo concerniente al aprendizaje de la lectoescritura, situación que se pudo evidenciar durante el desarrollo de la investigación, mediante el estudio y análisis de los planes de aula que se han venido implementando, por esta razón se hace necesario del diseño y de la implementación de una estrategia pedagógica para el fortalecimiento de la misma utilizando como elemento principal la decimas ancestrales de nuestro municipio. Para la elaboración de la propuesta, fue necesario de tomar como referente, información sobre el tema plasmada en diferentes libros, autores e investigaciones realizadas en torno a la temática de la lectoescritura y la tradición oral. Entre ellos se encuentran: Romances, coplas y décimas del Pacifico y del Caribe Colombiano: Poética de una Literatura oral en Colombia. Que hace referencia a un trabajo investigativo de más de cinco años, en los departamentos de cesar y Bolívar, en poblaciones de los montes de María, en donde se encuentran decimeros de gran maestría, con características socio-culturales similares (Fabio Alberto García Araque). Este documento reconoce diversos elementos de sobre el desarrollo de la investigación participativa, en donde se presentan algunas estrategias que pueden ser aplicada en diferentes Instituciones educativas adoptándolas al medio en el cual se interactúan sobre la Afrocolombianidad. También se tomó como referente documentos relacionados al tema de la lectoescritura como tal, con diferentes autores como Jean-Jacques Rousseau y Vygotsky, los cuales hacen referencia al tema de la lectoescritura a través de los conocimientos propios en relación con los elementos culturales; como también investigaciones realizadas la tradición oral como estrategia para fortalecer la producción textual, el paradigma cualitativo en la investigación socio educativa, entre otros. Que resultaron de gran valor para el desarrollo de este proyecto, lo cual se caracteriza metodológicamente por tratarse de una investigación – acción, basado en un enfoque crítico social. Para ello se hace necesario conocer el plan de aula que se viene implementando con los estudiantes del grado segundo de primaria de la Institución Educativo Politécnica del Municipio de Santa Bárbara de Iscuande Nariño, diseñar una estrategia pedagógica, que haga uso de la décima como estrategia didáctica para la enseñanza y aprendizaje de la lectoescritura, e implementar una estrategia pedagógica, que conlleve al fortalecimiento de la lectoescritura por medio de la enseñanza de la décima. Con el fin de reducir en los estudiantes las debilidades que vienen presentando en el área de lenguaje en el campo de la lectoescritura. Además de contribuir en el rescate cultural mediante la utilización de la “décima” como estrategia en un contexto en donde cada día se desvanecen rasgos importantes de la cultura.The present proposal, is focused on the problems presented by the students of the second grade of primary school of the polytechnic educational institution of the municipality Santa Barbara of Iscuande, in everything concerning the learning of literacy, a situation that could be evidenced during the development of the research, through the study and analysis of classroom plans that have been implemented, for this reason it is necessary to design and implement a pedagogical strategy to strengthen it, using the ancestral tenths of our municipality as the main element. For the preparation of the proposal, it was necessary to take as a reference, information on the topic reflected in different books, authors and research carried out on the topic of literacy and oral tradition. Among them are: romances, couplets and tenths of the Pacific and the Colombian Caribbean: Poetics of oral literature in Colombia. That it refers to a research work of more than five years, in the departments of Cesar and Bolívar, in populations of the mountains of Mary, where there are writers of tenths of great mastery, with similar sociocultural characteristics (Fabio Alberto García Araque). This document recognizes various elements of on the development of participatory research, in which are presented some strategies that can be applied in different educational institutions adopting them to the environment in which they interact on the Afro-Colombian. It also took as reference documents related to the subject of literacy as such, with different authors such as Jean-Jacques Rousseau and Vygotsky, which refer to the subject of literacy through their own knowledge in relation to cultural elements; as well as research carried out in the oral tradition as a strategy to strengthen textual production, the qualitative paradigm in socio-educational research, among others. That are of great value for the development of this project, which is methodologically characterized, as it is an action research, based on a critical social approach. For this it is necessary to know the classroom plan that is being implemented with the students of the second grade of the Polytechnic Educational Institution of the Municipality of Santa Bárbara de Iscuande Nariño, design a pedagogical strategy, which makes use of the tenth as a teaching strategy for the teaching and learning of literacy, and implement a pedagogical strategy, leading to the strengthening of literacy through the teaching of the tenth. In order to reduce in students the weaknesses that are presented in the area of language in the field of literacy. Besides contributing to the cultural rescue by using the "tenth" as a strategy in a context where every day important features of culture vanish

Convergence of guided learning and autonomous learning in the final evaluation

[EN] A learning experience carried out in the first course of Engineering Degrees at the University of Alcalá is presented. The objective is to mentor, reinforce and assist in the learning process of a subject that the student should study for an extraordinary call exam when the teaching of that subject has already finished. Students usually work alone in the preparation of this evaluation and it has been demonstrated that the academic scores are on average are worse than in the ordinary call, the latter one being closer to the teaching received. A working plan has been established with pseudo-weekly supervision of a group of 70 students. All of them were volunteers. The results show a correlation between participation in the supervised group and the highest grades achieved in the evaluation, grades of "B" and "A". The coexistence of two tendencies is suggested: on the one hand, the student more committed to the subject is more likely to enroll in the mentoring group, and on the other hand, the teacher's support contributes to improve the academic achivements.[ES] Se presenta una experiencia de aprendizaje realizada en el primer curso de Grados en Ingeniería en la Universidad de Alcalá. El objetivo es guiar, reforzar y acompañar en el proceso de aprendizaje de una asignatura que el estudiante debiera prepararse para un examen de convocatoria extraordinaria cuando la docencia de dicha asignatura haya finalizado. Habitualmente los estudiantes caminan solos hacia la evaluación y los resultados académicos son peores que en la convocatoria ordinaria, próxima en el tiempo a la docencia recibida. Se ha establecido un plan de trabajo con seguimiento cuasi-semanal sobre un grupo de 70 estudiantes que participaron voluntariamente. Los resultados muestran correlación entre la participación en el grupo de seguimiento y las calificaciones más altas obtenidas en la evaluación: notable y sobresaliente. Se sugiere la coexistencia de dos tendencias: por un lado, el estudiante con mayor motivación hacia la asignatura es más proclive a incorporarse al grupo tutelado; por otro, el apoyo del docente contribuye a mejorar los logros académicos.Los autores expresan su agradecimiento al proyecto de innovación docente UAH/EV1248 de la Universidad de Alcalá, implementado por el grupo de innovación docente ABRECI (Aprendizaje Basado en Retos en Ciencias e Ingeniería, UAH-GI21-168).García-Díaz, P.; Díez-Pascual, A.; Jurado-Sánchez, B.; Peña-Capilla, R. (2022). Convergencia del aprendizaje dirigido y del aprendizaje autónomo en la evaluación final. Editorial Universitat Politècnica de València. 173-183. https://doi.org/10.4995/INRED2022.2022.1583817318

Exploring the alterations in the distribution of neural network weights in dementia due to alzheimer’s disease

Producción CientíficaAlzheimer’s disease (AD) is a neurodegenerative disorder which has become an outstanding social problem. The main objective of this study was to evaluate the alterations that dementia due to AD elicits in the distribution of functional network weights. Functional connectivity networks were obtained using the orthogonalized Amplitude Envelope Correlation (AEC), computed from source-reconstructed resting-state eletroencephalographic (EEG) data in a population formed by 45 cognitive healthy elderly controls, 69 mild cognitive impaired (MCI) patients and 81 AD patients. Our results indicated that AD induces a progressive alteration of network weights distribution; specifically, the Shannon entropy (SE) of the weights distribution showed statistically significant between-group differences (p < 0.05, Kruskal-Wallis test, False Discovery Rate corrected). Furthermore, an in-depth analysis of network weights distributions was performed in delta, alpha, and beta-1 frequency bands to discriminate the weight ranges showing statistical differences in SE. Our results showed that lower and higher weights were more affected by the disease, whereas mid-range connections remained unchanged. These findings support the importance of performing detailed analyses of the network weights distribution to further understand the impact of AD progression on functional brain activity.Ministerio de Ciencia e Innovación-Agencia Estatal de Investigación, Fondo Europeo de Desarrollo Regional (FEDER) - (project PGC2018-098214- A-I00)Comisión Europea y Fondo Europeo de Desarrollo Regional (FEDER) - (Cooperation Programme Interreg V-A Spain-Portugal POCTEP 2014–20200

Feeding Algae Meal to Feedlot Lambs with Competent Reticular Groove Reflex Increases Omega-3 Fatty Acids in Meat

The aim of this study was to compare the effects of supplementing marine algae as a source of omega-3 fatty acids (FA) in the diet, mixed in the concentrate or bottle-fed, on intramuscular fat FA composition of lambs with competent reticular groove reflex (RGR). Forty-eight feedlot lambs were distributed in three equal groups: one group did not consume marine algae nor had competent RGR, the second group received a daily dose (2.5%) of algae meal in the concentrate and the last group consumed the same dose of algae meal emulsified in milk replacer and bottle-fed. Marine algae raised the contents of EPA, DPA, and mainly DHA in the intramuscular fat, but the increase was significantly higher when algae meal was administered with a bottle via RGR. This strategy could contribute to improvements in the marketing of lamb meat by optimizing its status as a healthier food