This research presents an analysis of the learning strategies employed by students during confinement due to Covid-19 in the year 2021. The study sample consisted of 200 students from the Licenciado Benito Juárez García high school of the morning shift of the Benemérita Universidad Autónoma de Puebla. A survey was applied to measure the degree of satisfaction in relation to their use and impact on the acquisition of knowledge, allowing them to be more self-taught.The results show that the hypothesis was (...) partially fulfilled, since practice and organization are the learning strategies that most supported them in learning. (shrink)

El quehacer docente durante la pandemia, llevo hacer cambios en su metodología de trabajo, la experiencia en aula virtual de la asignatura de microbiología involucra a los alumnos de quinto semestre del área de la salud, de la preparatoria licenciado Benito Juárez García. En ésta el alumno debe aprender a investigar, diseñar y poner en marcha una propuesta de difusión sobre la etiología y prevención de enfermedades causadas por microorganismos. Por lo que, debido a la contingencia sanitaria la difusión fue (...) por medios digitales a través de Blogs. (shrink)

En el escenario actual de Cuba y el mundo la migración al software libre constituye una necesidad para el desarrollo para garantizar la independencia tecnológica. Los procedimientos para realizar dicho proceso son fundamentales en la estrategia definida por el país que incluye la "Guía cubana de migración al software libre", sin embargo, su aplicación práctica enfrenta dificultades que han motivado a los autores a la elaboración de una estrategia específica para la migración al software libre en el sector de la (...) Salud Pública de la provincia de Camagüey, Cuba. En esta estrategia se proponen las acciones concretas, los programas docentes que permitirán la recalificación del capital humano y las acciones que posibiliten garantizar la sostenibilidad de la migración al concluir el proceso. In the present Cuban and world scenarios the migration to free software constitutes a need for the development to guarantee technological independence. The procedures to carry out that process are vital in the strategy defined by the country that includes “Cuban guidelines for the migration to free software” however its practical implementation is facing difficulties that have motivated the authors to elaborate a specific strategy form the migration to free software in the Public health sector in the province of Camagüey, Cuba. In this strategy actions are suggested, like teaching programs that will allow the recertification of the capital human resources and steps that will make possible to guarantee the sustainability of the migration at the end of the process. (shrink)

Aberrations introduced by the atmospheric turbulence in large telescopes are compensated using adaptive optics systems, where the use of deformable mirrors and multiple sensors relies on complex control systems. Recently, the development of larger scales of telescopes as the E-ELT or TMT has created a computational challenge due to the increasing complexity of the new adaptive optics systems. The Complex Atmospheric Reconstructor based on Machine Learning is an algorithm based on artificial neural networks, designed to compensate the atmospheric turbulence. During (...) recent years, the use of GPUs has been proved to be a great solution to speed up the learning process of neural networks, and different frameworks have been created to ease their development. The implementation of CARMEN in different Multi-GPU frameworks is presented in this paper, along with its development in a language originally developed for GPU, like CUDA. This implementation offers the best response for all the presented cases, although its advantage of using more than one GPU occurs only in large networks. (shrink)

Background: Frailty is a common syndrome among older adults and patients with several comorbidities. Grip strength is a representative parameter of frailty because it is a valid indicator of current and long-term physical conditions in the general population and patients with severe mental illnesses. Physical and cognitive capacities of people with SMIs are usually impaired; however, their relationship with frailty or social functioning have not been studied to date. The current study aimed to determine if GS is a valid predictor (...) of changes in cognitive performance and social functioning in patients with type-2 diabetes mellitus and SMIs. Methods: Assessments of social functioning, cognitive performance, and GS were conducted in 30 outpatients with type 2 diabetes mellitus, 35 with major depressive disorder, 42 with bipolar disorder, 30 with schizophrenia, and 28 healthy controls, twice during 1-year, follow-up period. Descriptive analyses were conducted using a one-way analysis of variance for continuous variables and the chi-squared test for categorical variables. Differences between groups for the motor, cognitive, and social variables at T1 and T2 were assessed using a one-way analysis of covariance, with sex and age as co-variates. To test the predictive capacity of GS at baseline to explain the variance in cognitive performance and social functioning at T2, a linear regression analysis was performed. Results: Predictive relationships were found among GS when implicated with clinical, cognitive, and social variables. These relationships explained changes in cognitive performance after one year of follow-up; the variability percentage was 67.7%, in patients with type-2 diabetes mellitus and 89.1% in patients with schizophrenia. Baseline GS along with other variables, also predicted changes in social functioning in major depressive disorder, bipolar disorder, and schizophrenia, with variability percentages of 67.3, 36, and 59%, respectively. Conclusion: GS combined with other variables significantly predicted changes in cognitive performance and social functioning in people with SMIs or type-2 diabetes mellitus. Interventions aimed to improve the overall physical conditions of patients who have poor GS could be a therapeutic option that confers positive effects on cognitive performance and social functioning. (shrink)

RESUMEN El presente estudio está dirigido a establecer coincidencias entre el pensamiento de José Martí y de Carlos Marx en el terreno filosófico. Ambos representan los más altos exponentes del saber filosófico y humanista de la cultura europea y latinoamericana del siglo XIX, respectivamente, con un alcance genuinamente universal. No fue objetivo en modo alguno convertir a Martí en marxista, del mismo modo que sería absurdo afiliar a Marx a las ideas y las concepciones martianas. Sin embargo, no es posible (...) dejar de subrayar la profundidad del ideario martiano en el terreno filosófico, político, social y económico y sus aproximaciones a las concepciones marxistas o al socialismo científico. ABSTRACT The present study is directed to establish coincidences between the thought of José Martí and Carlos Marx in the philosophical area. Both are represented by the highest exponents of the philosophical and humanist knowledge of the European and Latin-American culture of the 19th century, respectively, with an authentically universal scope. It was not objective in any way to turn Martí into Marxist, in the same way that it would be absurd to affiliate Marx to the ideas and the Martí´s conceptions. Nevertheless, it is not possible to stop underlining the depth of the Martí´s ideology in the philosophical, political, social and economic area and his approaches to the Marxist conceptions or to the scientific socialism. (shrink)

Aims: Attentional bias, alcohol craving, and anxiety have important implications in the development and maintenance of alcohol use disorder. The current study aims to test the effectiveness of a Virtual Reality Cue-Exposure Therapy to reduce levels of alcohol craving and anxiety and prompt changes in AB toward alcohol content.Method: A 49-year-old male participated in this study, diagnosed with severe AUD, who also used tobacco and illicit substances on an occasional basis and who made several failed attempts to cease substance misuse. (...) The protocol consisted of six VR-CET booster sessions and two assessment sessions over the course of 5 weeks. The VR-CET program consisted of booster therapy sessions based on virtual reality exposure to preferred alcohol-related cues and contexts. The initial and final assessment sessions were focused on exploring AB, alcohol craving, and anxiety using paper-and-pencil instruments and the eye-tracking and VR technologies at different time points.Results: Pre and post assessment sessions indicated falls on the scores of all instruments assessing alcohol craving, anxiety, and AB.Conclusions: This case report, part of a larger project, demonstrates the effectiveness of the VR-CET booster sessions in AUD. In the post-treatment measurements, a variety of instruments showed a change in the AB pattern and an improvement in craving and anxiety responses. As a result of the systematic desensitization, virtual exposure gradually reduced the responses to significant alcohol-related cues and contexts. The implications for AB, anxiety and craving are discussed. (shrink)

ISSN:1909-9711 (En línea) Misión La Revista Acta Colombiana de Psicología publica hallazgos originales de las investigaciones en Psicología y de esta disciplina en diálogo con otras, con el propósito de divulgarlas a la comunidad universitaria y a todas las personas interesadas en conocer sus nuevos avances y aplicaciones a distintos campos y necesidades de la sociedad contemporánea.

Las prácticas docentes de lectura en Chile son, según la evidencia disponible, predominantemente reproductivas y presentan un limitado desafío cognitivo. En este contexto, el objetivo de la investigación fue analizar las percepciones de docentes destacados de educación básica respecto de sus prácticas de mediación lectora en distintas disciplinas. Respecto de la metodología, el diseño fue un estudio de casos múltiples descriptivo y cualitativo y los participantes fueron 11 docentes de 6 escuelas públicas de La Araucanía, Chile, a quienes se aplicaron (...) entrevistas semiestructuradas en profundidad y cuya codificación se efectuó en tres fases con un paradigma fenomenológico. Los resultados muestran que los docentes se centran más en acompañar y motivar la lectura que en enseñar estrategias específicas y que ofrecen espacios de diálogo para mediarla, aunque, en general, aún predomina en ellos un enfoque generalista y no disciplinar de la lectura. La identificación de las buenas prácticas de los profesores de excelencia puede contribuir al desarrollo de las prácticas pedagógicas de otros docentes. (shrink)

Las estrategias de lectura que utilizan los estudiantes universitarios en el desarrollo de la lectura académica en inglés resultan ser fundamentales para el desarrollo del pensamiento y la construcción de significados. En Chile, se reporta que las estrategias de lectura en universitarios son poco variadas. Por tanto, el objetivo de la investigación fue caracterizar y analizar las concepciones de lectura de los y las estudiantes de primer año de la carrera de Pedagogía en inglés, y cómo estas pueden guiar el (...) uso de determinadas estrategias de lectura. Respecto de la metodología, el diseño fue cuantitativo-descriptivo, los participantes fueron 45, a quienes se les aplicó un cuestionario sobre concepciones de lectura y otro sobre estrategias de lectura. Finalmente, se identificó que los estudiantes de la carrera de inglés presentan simultáneamente tanto concepciones reproductivas como epistémicas y que las estrategias de lectura se utilizan principalmente antes de la lectura y durante la misma. (shrink)

Se busca precisar dos sentidos de mecanismo en Kant, a saber, el “mecanismo de la naturaleza” como sinónimo de la causalidad natural y el concepto de mecanismo que se desprende de la Crítica de la facultad de juzgar, para iluminar lo que este autor entiende por “explicación mecánica” en el juicio teleológico. Eso permite entender por qué los seres orgánicos son inexplicables mecánicamente y, de esta manera, justificar la necesidad de los juicios teleológicos sobre la naturaleza.

Research has shown that experiences of discrimination cause harm to the health and well-being of people. In terms of the identity of members of a group, a positive evaluation of that group might involve devaluing the out-group as a way of raising the endo-group, causing discrimination toward the out-group. In the Chilean context, the Mapuche people have historically suffered discrimination and violations of their rights. The aim of this study was to assess the relationship between Collective Identity, perceived experiences of (...) discrimination, psychological well-being and distress in the inhabitants of the Mapuche conflict zone according to their sense of belonging to their ethnic group. This descriptive, correlative, and cross-sectional study involved 200 participants, including 94 men, and 106 women, between the ages of 18 and 83 years old, who had lived for at least 1 year in communities in the Araucanía Region. The sample was stratified according their sense of ethnic identity, including 30% Mapuche, 33.5% Caucasian, and 36.5% Mestizo. The results show that participants with a sense of Mapuche ethnicity experienced more instances of discrimination, had a greater sense of collective identity, and that they also supported the Mapuche social movement and its methods. Based on evidence that well-being is directly related to collective identity, the study undertook a regression analysis of emotional distress and the psychological well-being of participants. The interaction between experiences of discrimination and collective identity has a significant influence. Collective identity and experiences of discrimination in themselves as well as the interaction between them, predict psychological well-being. The results suggest that the importance of the Mapuche group’s identity phenomena are related to a broad socio-historical context that leads them to identify themselves as a collective in conditions of inequality. This relationship between well-being and collective identity could be explained by their sense of cultural belonging, which can be a factor in protecting mental health. (shrink)

El objetivo de la formación doctoral es la generación y difusión de nuevo conocimiento, sin embargo, no es claro cómo los programas de doctorado en Colombia se relacionan con este tipo de producción académica. A partir de ello, en el presente estudio se presenta el panorama general de la producción académica a través de las instituciones de educación superior colombianas que ofertan programas de formación doctoral en psicología. La producción académica se obtuvo de la base de datos Scopus en una (...) muestra de 13 universidades. Tras una búsqueda inicial, se encontraron 1345 documentos, con los cuales se realizó un análisis de los indicadores de productividad y de las redes de colaboración al interior de la disciplina en el país. Posteriormente, esta información se contrastó con la información nacional registrada en el sistema de Currículum Vitae Latinoamericano y del Caribe de 193 profesores asociados a las universidades que ofertan los programas de doctorado. Al comparar la producción académica nacional e internacional, se encontró una mayor correlación entre la dirección de tesis de posgrado y la publicación en revistas nacionales. Por lo tanto, se puede afirmar que el impacto de la formación doctoral en la generación de nuevo conocimiento es relativo y tiene un alcance limitado, siendo principalmente las revistas nacionales el medio de difusión de este conocimiento. Se recomienda evaluar el impacto de los productos asociados a la formación posgradual y la visibilidad internacional, con énfasis en las revistas indexadas en bases de datos internacionales. (shrink)

El escrito continúa una discusión mantenida por Macarena Marey, María Julia Bertomeu y Nuria Sánchez Madrid en torno a la capacidad de los principios del republicanismo kantiano para transformar el espacio social en un ámbito en el que la autosuficiencia material constituya una de las condiciones fundamentales para que la igualdad formal ante la ley y la libertad política puedan actualizarse. En estas coordenadas se manifiestan también algunas discrepancias en lo concerniente a la percepción kantiana de las injusticias (...) sociales y políticas propias de su tiempo, si bien se alcanza el acuerdo de que el diseño institucional del republicanismo kantiano constituye un dispositivo conceptual suficiente para eliminar la desigualdad económica que comporta pasividad civil y política. (shrink)

In “A Personalized Patient Preference Predictor for Substituted Judgments in Healthcare,” Earp et al. (2024) introduce the Personalized Patient Preference Predictor (P4), an AI model designed to ex...

El objetivo de esta investigación, desarrollada en el contexto de educación virtual, fue mejorar las competencias investigativas de estudiantes universitarios. Este estudio cualitativo y de diseño investigación-acción se basó en un diagnóstico inicial con el que se identificó plagio académico, además de una autopercepción de nivel medio o bajo respecto de las habilidades investigativas de los alumnos. Durante la ejecución de las estrategias diseñadas, se aplicaron las técnicas de focus group y análisis documental de los ensayos estudiantiles. Se concluyó la (...) efectividad de las estrategias en la mejora de las competencias básicas, de búsqueda y análisis de información, y actitudinales. (shrink)

Partiendo de que las empresas obtienen mejores resultados si su equipo profesional está integrado y se considera valorado por sus superiores y por el cliente final, este trabajo analiza el valor que puede tener la Gestión de las Emociones en la Gestión del Conflicto Empresarial. Para ello se realiza una profunda revisión bibliográfica sobre el concepto y su aplicación y se muestran los resultados obtenidos de una investigación cuantitativa realizada en el Sector Hotelero. Los resultados demuestran la relevancia de las (...) Emociones en cualquiera de las relaciones de la empresa, con el cliente interno y con el externo. (shrink)

Desde un enfoque neuropsicológico, este estudio busca describir las operaciones cognitivas aplicadas durante la lectura. Este es un estudio de caso mixto, orientado a una muestra de 200 estudiantes de Enfermería. Para el recojo de información, se aplicó una prueba y un cuestionario de autopercepción lectora a los estudiantes; así como una guía de entrevista semiestructurada, dirigida a docentes. Entre los resultados, destaca que la velocidad lectora, la memoria y la atención impactan en el acto lector, además de las emociones (...) y los saberes previos. En conclusión, las operaciones cognitivas se vinculan directamente con los procesos asociados a la lectura. (shrink)

Este artículo presenta el informe final de una investigación que ha surgido a partir de la observación situada en aquellos jardines de infantes de San Carlos de Bariloche en los cuales las estudiantes realizaban las prácticas de enseñanza. Al relevar los modelos organizacionales de las instituciones educativas de primera infancia se observa que presentan variadas organizaciones en la conformación de las grupalidades. A partir de ello, nos propusimos profundizar en las salas multiedad, y analizar las formas en que se lleva (...) a cabo la planificación didáctica en las mismas. Hemos fundamentado la propuesta de investigación desde el paradigma de la diversidad cultural de la UNESCO (2002), haciendo énfasis en la educación desde el enfoque pedagógico “que contemple la diversidad como condición inherente al ser humano” (Anijovich, 2019, p. 21). Mientras que, desde lo metodológico, seleccionamos especialmente un enfoque cualitativo, si bien consideramos aspectos cuantitativos necesarios para la tarea. En relación a las planificaciones que acompañaban estos cambios - en términos generales - observamos que revestían diferentes formatos, pero en todos los casos se las consideraba como proceso de construcción dinámico e interactivo. La intencionalidad de esta investigación fue la construcción de nuevos saberes que aporten y enriquezcan la didáctica específica de la educación inicial. (shrink)

The closure of schools as a result of COVID-19 has been a critical global incident from which to rethink how education works in all our countries. Among the many changes generated by this crisis, all teaching became mediated by digital technologies. This paper intends to analyze the activities carried out during this time through digital technologies and the conceptions of teaching and learning that they reflect. We designed a Likert-type online questionnaire to measure the frequency of teaching activities. It was (...) answered by 1,403 teachers from Spain. The proposed activities varied depending on the learning promoted, the learning outcomes, the type of assessment to which the activities were directed, and the presence of cooperative activities. The major result of this study was that teachers used reproductive activities more frequently than constructive ones. We also found that most activities were those favoring verbal and attitudinal learning. The cooperative activities were the least frequent. Finally, through a cluster analysis, we identified four teaching profiles depending on the frequency and type of digital technologies use: Passive, Active, Reproductive, and Interpretative. The variable that produced the most consistent differences was previous digital technologies use These results show that Information and Communication Technologies uses are reproductive rather than constructive, which impedes effective digital technologies integration into the curriculum so that students gain 21st-century competencies. (shrink)

Toulmin (2001) sostiene que la invención de las disciplinas,un cambio iniciado en el siglo XVII, involucró factores tantointelectuales como institucionales. Intelectualmente, el uso dela geometría cartesiana como modelo de conocimiento proveyólos fundamentos; institucionalmente, la división del trabajo enprofesiones y disciplinas hizo el resto. Sin embargo, este cambiose produjo lentamente y sólo alcanzó su apogeo durante el sigloXX, con la conformación de lo que Snow (2012) reconoce comolas dos culturas: las Humanidades y las Ciencias Naturales.Focalizando esta distinción, proponemos reflexionar sobre laargumentación (...) escrita en dos disciplinas (Letras y Biología)desde la perspectiva toulminiana. Al respecto, consideramosque los argumentos y los modos de escribirlos están tanprofundamente ligados a las disciplinas que resulta esencialsaber y reconocer cómo operan estos procesos a fin de entenderla lógica de dichos campos. En efecto, las particularidades decada disciplina están siempre presentes a la hora de escribir yde argumentar por escrito. Todo texto pertenece, por lo menos,a un género y a una disciplina; como tal, emplea movimientosretóricos particulares que varían de comunidad en comunidady de un tipo de discurso a otro. Este trabajo, retoma lapropuesta de Toulmin (2003, 2001) y busca dar cuenta de lasespecificidades de la argumentación escrita en dos carrerasuniversitarias argentinas (Letras y Biología). Así, después dehaber efectuado un trabajo de campo que comprendió, duranteun semestre, observación participante de clases, entrevistasa docentes y alumnos y recolección de documentos áulicos(exámenes escritos y trabajos prácticos), distinguimos cuatrorasgos que caracterizan la argumentación en los ámbitosdisciplinares de las Humanidades y de las Ciencias Naturales:(1) los grados de formalidad; (2) los grados de precisión; (3) losmodos de resolución; y (4) las metas de la argumentación. Estoscuatro rasgos permiten complejizar los elementos estables delesquema toulminiano y pensar sus usos, sus aplicaciones y susalcances en las disciplinas. (shrink)

The impact of digital devices and the Internet has generated various changes at social, political, and economic levels, the repercussion of which is a great challenge characterized by the changing and globalized nature of today's society. This demands the development of new skills and new learning models in relation to information and communication technologies. Universities must respond to these social demands in the training of their future professionals. This paper aims to analyze the empirical evidence provided by international studies in (...) the last eleven years, related to the digital literacy of university students, including those pursuing degrees related to the field of education. Our findings highlight the fact that the digital literacy that is offered in universities to graduate/postgraduate students, in addition to treating digital literacy as a central theme, also focuses on perceived and developed self-efficacy. This is done by strengthening competencies related to digital writing and reading, the use of databases, the digital design of content and materials, and the skills to edit, publish or share them on the web, or applications aimed at treating digital literacy as emerging pedagogies and educational innovation. Secondly, we found studies related to digital competencies and use of the Internet, social networks, web 2.0, or the treatment of digital risks and their relationship with digital literacy. Thirdly, we found works that, in addition to focusing on digital literacy, also focused on different psychological constructs such as motivation, commitment, attitudes, or satisfaction.Systematic review registration:https://www.scopus.com/home.uri; https://www.recursoscientificos.fecyt.es/. (shrink)

Breast cancer is a disease that is difficult to face and that often hinders body acceptance. Body changes due to surgery can be very emotionally challenging for those who experience them. The aim of this study is to explore the differences on body image and psychological adjustment on women with breast cancer with high and low alexithymia according to the type of surgery. In this cross-sectional study, 119 women diagnosed with breast cancer were evaluated with different self-report questionnaires. Afterward, patients (...) were divided into two groups to analyze dependent variables according to the type of surgery. The results of the General Linear Model suggest that when patients show high alexithymia combined with having undergone a radical mastectomy, they show higher levels of Hopelessness. Furthermore, in patients with high alexithymia, higher scores of maladaptive coping styles and greater distortion of body image were found. Alexithymia seems to play an important role in the way in which women cope with their disease, especially in those with radical mastectomy. (shrink)

Na perspectiva da Psicologia Histórico-Cultural, o trabalho, exigência para que o homem sobreviva, lhe possibilita desenvolver-se, apropriar-se da cultura humana histórica e coletivamente elaborada, para atender às demandas que suas tarefas lhe impõem. Em um processo coletivo, por meio de sua inserção nas relações produtivas, ao aprender o que lhe é necessário para executar suas atividades, o homem se humaniza, e vai criando o que necessita e pode, para atender suas necessidades, o que permite afirmá-lo enquanto produto e produtor da (...) cultura, da ciência e da tecnologia. E essa é a função básica da escola, preparar o aluno para, na medida em que se humaniza, assumir um lugar, uma posição reconhecida socialmente. Nesse processo, o Trabalho Colaborativo/Ombreado entre os professores da Educação Especial, do ensino comum e da equipe pedagógica escolar, envolvendo confiança e credibilidade entre os pares, é essencial ao desenvolvimento psicointelectual dos estudantes com deficiência/necessidades educativas especiais. Para melhor caracterizar o Trabalho Colaborativo, apresenta-se o resultado de uma pesquisa efetuada na Biblioteca Digital de Teses e Dissertações na qual se buscou identificar suas características, limites e desafios. A essência do Trabalho Colaborativo entre os professores está numa relação de apoio, na qual todos assumem a responsabilidade no processo de aprendizagem dos conteúdos escolares, o que exige espaço e tempo para sua consecução, além de uma fundamentação teórica que articulada a uma prática pedagógica lhe dê consistência. Se executado dessa forma, o Trabalho Colaborativo/Ombreado caracteriza-se como essencial à inclusão escolar. Conclui-se que, para efetivá-lo, torna-se imperiosa a definição clara e consciente dos objetivos para a escolarização, pois há muita diversidade entre as especificidades da deficiência ou das necessidades educacionais especiais. No entanto, essa forma de atuação articulada encontra diferentes entraves que se constituem em seus limites e desafios exigindo vontade política para minimizá-los, permitindo sua organização adequada. Discutem-se esses desafios e apresenta-se um exemplo no qual, pelo trabalho colaborativo pôde-se estabelecer condições para que uma aluna que, pelo vestibular conquistou uma vaga no curso de Medicina mas adquiriu uma tetraplegia no decorrer do curso, pudesse terminar sua graduação. (shrink)

Accurate measurement of livestock weight is a primary indicator in the meat industry to increase the economic gain. In lambs, the weight of a live animal is still usually estimated manually using traditional scales, resulting in a tedious process for the experienced assessor and stressful for the animal. In this paper, we propose a solution to this problem using computer vision techniques; thus, the proposed procedure estimates the weight of a lamb by analysing its zenithal image without interacting with the (...) animal, which speeds up the process and reduces weighing costs. It is based on a data-driven decision support system that uses RGB-D machine vision techniques and regression models. Unlike existing methods, it does not require walk-over-weighing platforms or special and expensive infrastructures. The proposed method includes a decision support system that automatically rejects those images that are not appropriate to estimate the lamb weight. After determining the body contour of the lamb, we compute several features that feed different regression models. Best results were achieved with Extra Tree Regression ($R^{2}$=91.94%), outperforming the existing techniques. Using only an image, the proposed approach can identify with a minimum error the optimal weight of a lamb to be slaughtered, so as to maximise the economic profit. (shrink)

Unfortunately, there are still cases of domestic violence or situations where it is necessary to call for help without arousing the suspicion of the aggressor. In these situations, the help signal devised by the Canadian Women’s Foundation has proven to be effective in reporting a risky situation. By displaying a sequence of hand signals, it is possible to report that help is needed. This work presents a vision-based system that detects this sequence and implements it in a social robot, so (...) that it can automatically identify unwanted situations and alert the authorities. The gesture recognition pipeline presented in this work is integrated into a cognitive architecture used to generate behaviours in robots. In this way, the robot interacts with humans and is able to detect if a person is calling for help. In that case, the robot will act accordingly without alerting the aggressor. The proposed vision system uses the MediaPipe library to detect people in an image and locate the hands, from which it extracts a set of hand landmarks that identify which gesture is being made. By analysing the sequence of detected gestures, it can identify whether a person is performing the distress hand signal with an accuracy of 96.43%. (shrink)

La vulnerabilidad narrativa, producto de la exclusión de los marcos de representación del contexto, que priva a algunos de ser vistos, escuchados y sentidos por la mayoría, implica la precariedad de amplias generaciones transformadas en “vidas fungibles”, esto es, en instrumentos vivos y animados de las máquinas de la guerra. Estos hombres y mujeres, empero, no son engranajes de la destrucción, sino seres con un nombre y una historia singular. Su capacidad de traducir narrativamente la realidad ofrece otro encuadre de (...) interpretación sobre el pasado y el futuro a partir de su llamado a una nueva vida y al fin de la violencia armada. Aquí reside la propuesta de esta contribución, en la que, usando las reflexiones de Hannah Arendt y de Judith Butler, además de una entrevista a profundidad con un excombatiente colombiano en proceso de reintegración, se advierte en la narración la respuesta a la fungibilidad —‍ la condición de existencias usufructuables, reemplazables y matables‍‍— de forma que se posibilita una vida biográfica, cargada de porvenir. (shrink)

Quality standards fulfilment is an essential task in manufacturing processes that involves high costs. One target is to avoid the presence of burrs in the edge of machine workpieces, which reduce the quality of the products. Furthermore, they are not easily removed since the part can even be damaged. In this paper, we propose an optimized Convolutional Neural Network, to detect the presence of burrs in images of milling parts. Its design is focused on the optimization of classification (accuracy) and (...) performance metrics (training time and number of trainable parameters). The proposed architecture identifies burrs with a 91.16% accuracy in the test set, outperforming existing models as EfficientNetB0. It also reduces the number of trainable parameters from other models as AlexNet by 1.5 million. The prediction process just takes 48.39 milliseconds per image. Finally, in order to check if the model gets a high activation in the region of interest, a visual explanation of the model is also carried out by using Gradient-weighted Class Activation Mapping. (shrink)

Este artículo tiene como objetivo general fundamentar el mapa de funciones del docente de investigación -a quien las autoras han designado como LOI-, con el fin de que sirva de base a la generación del estándar de competencia en la enseñanza de la metodología para asegurar el aprendizaje significativo desde el enfoque constructivista. El estudio presenta los resultados alcanzados en dos conglomerados, uno que recibe la enseñanza tradicional de metodología y otro que considera el nuevo enfoque establecido en el Mapa (...) de funciones LOI, y su impacto en la eficiencia terminal y la disminución de la deserción universitaria. (shrink)

Uterus transplants (UTx) provide women without a uterus the possibility of experiencing gestational motherhood. This paper delineates the complex bioethical landscape surrounding UTx, focusing on the critical aspects of informed consent, risk–benefit analysis, justice considerations, and the distinct challenges encountered by both donors and recipients. While not discussing UTx directly, John Harris’ seminal work, The Value of Life: An Introduction to Medical Ethics (1985) in its advocacy for reproductive freedom and informed consent provides an informative starting point for the discussion. (...) As an example, UTx is analyzed within the socio-political context of Mexico. The impact of the Mexican healthcare and legal systems on UTx procedures is discussed and the regulatory measures necessary to ensure that UTx is conducted ethically and equitably are outlined. (shrink)