La utilización de metodologías activas para la educación científica en educación infantil y primaria potencia estructuras de conocimiento que se consolidan en el tiempo. Nuestra hipótesis de trabajo parte de que el alumnado que ha recibido formación basada en el método científico en etapas iniciales continuará aplicando estos conocimientos en situaciones de su vida cotidiana. Para ello hemos trabajado con las máquinas simples debido a su presencia en multitud de situaciones diarias.Se utilizó la prueba t entre los distintos grupos y (...) se pone de manifiesto las situaciones en las que las diferencias son significativas después de transcurridos 6 años. Es responsabilidad de las instituciones educativas el manejo de metodologías que conduzcan al desarrollo de competencias, entre ellas la científica. (shrink)

A partir del comentario hecho por José L. L. Aranguren sobre «puede» y «debe» en ética, aquí se plantea el significado de los principios de ética en la situación de retroceso democrático del siglo XXI. Ha sido analizada por la filosofía y la teoría política recientes. En los años sesenta, las críticas de D. Sternberger al modelo de polis, de política cívica en las obras de H. Arendt, se apoyaban en la imagen de la ciudad hundida. Pero las preguntas (...) sobre el alcance del realismo («puede») y el lugar de los principios («debe») siguen abiertas. ¿Ultra posse nemo obligatur? Aquella imagen de la polis puede ser reemplazada por otra algo distinta, la ciudad sumergida. Se encuentra en la literatura, sería también la metáfora de la necesaria reconstrucción de las políticas democráticas, con el «deber ser» como núcleo de la cultura cívica. Los principios éticos y, en especial, justicia como equidad será aquí la referencia en dos situaciones: (1) la política de salud pública, (2) los procesos de paz. En conclusión, el marco normativo cuenta o ha de contar, tanto en la paz como en la guerra. Decir «nunca más» es también una forma de recordar el papel crucial de los principios. (shrink)

La relación entre seres humanos y otros anymales (anymals) (Kemmerer, 2006) es, por definición, asimétrica. A lo largo de la historia se han esgrimido múltiples argumentos para justificar un supuesto excepcionalismo humano (excepcionalism), desde la atribución de derechos divinos a una mayor inteligencia, legitimando así un sistema de explotación denominado dominación (domination) (Manfredo et al. 2019). Las relaciones entre especies y cómo se conciben son un tema difícil. Hay muchos modos de enfocar las relaciones entre el humano y los anymales, (...) desde la adoración religiosa (vacas en la India) a la explotación (investigación biomédica). Además en Occidente surgen formas alternativas de ver y entender estas relaciones (por ejemplo, la relación con animales domésticos). La pertenencia a una u otra especie es un factor fundamental que influye en la posición que cada animal tiene en estas jerarquías asimétricas. Sin embargo, se deben considerar otros elementos relevantes, como los vínculos entre individuos, de la misma manera que el afecto por otras personas depende en líneas generales del tipo de vínculo que tengamos con ellas (por ejemplo, la relaciones familiares o de amistad). (shrink)

La filosofía moral de Adam Smith se fundamenta en el papel de la imaginación para explicar el orden social en un nivel macro, y como mecanismo de identificación afec tiva en un nivel micro. En ambos casos, el rol de la imaginación en nuestra psicología moral refuta la tesis de un _homo economicus_, o de que el ser humano está motiva do a entrar en sociedad por su interés personal. Esto sirve de premisa para refutar la posición hobbesiana de un (...) estado de naturaleza histórico que está en la base de nuestros juicios morales que fundan la sociedad civil y la necesidad del magistrado. (shrink)

Esta investigación de corte cualitativo realiza una revisión sistemática para conocer cuáles son los factores que dificultan y favorecen el proceso de aprendizaje del alumnado sordo bilingüe en primaria. Este trabajo sigue las pautas de la declaración PRISMA. Las bases de datos consultadas han sido Web of Science, Scopus, ERIC y Google Scholar revisándose en total 190 estudios empíricos, en español y en inglés, entre los años 1997 y 2021. Los resultados obtenidos muestran que hay escasas publicaciones al respecto y (...) se evidencia la necesidad de dar a conocer la situación de este colectivo para seguir avanzando y educando. (shrink)

With the advent of the cloud computing model allowing a shared access to massive computing facilities, a surging demand emerges for the protection of the intellectual property tied to the programs executed on these uncontrolled systems. If novel paradigm as confidential computing aims at protecting the data manipulated during the execution, obfuscating techniques (in particular at the source code level) remain a popular solution to conceal the purpose of a program or its logic without altering its functionality, thus preventing reverse-engineering (...) on the program even with the help of computing resources. The many advantages of code obfuscation, together with its low cost, makes it a popular technique. This paper proposes a novel methodology for source code obfuscation that can be used together with other traditional obfuscation techniques, making the code more robust against reverse engineering attacks. Three program complexity metrics are used to define three different single-objective combinatorial optimization versions of the problem, which are solved and analysed. Additionally, three multi-objective problems are defined, those considering each of the selected metrics together with the program execution time, in order to avoid strong obfuscations penalizing the performance. The goal of the defined problems is to find sequences of LLVM optimizations that lead to highly obfuscated versions of the original code. These transformations are applied to the back-end pseudo-assembly code (i.e., LLVM Intermediate Representation), thus avoiding any further optimizations by the compiler. Classical genetic algorithms (GAs) are used to solve the studied problems, namely a basic cellular GA for the single-objective problems and the popular NSGA-II for the multi-objective ones. The promising results show the potential of the proposed technique. (shrink)

This paper employs network theory, mining data and bibliometric analysis when mapping the scientific contribution of Nobel Prize candidate; Manuel Sandoval Vallarta, the first and most renowned Mexican physicist and important figure in Latin American science. Vallarta died in 1977, and the existing literature is about his life and contributions to science but not about how those are still valuable today. This paper is the first to highlight, with mapping tools, that his contributions are relevant to the international community of (...) cosmic rays, quantum mechanics and relativity. These tools delivered three findings: Identify how he built his own field of study, same as universal knowledge. Unveil that the backward and forward Vallarta citations follow a scale-free network distribution. Determine social factors that benefited or affected his scientific activities—such as World War II interrupting Vallarta’s successful productivity at Massachusetts Institute of Technology. Furthermore, this study confirmed the interdisciplinary nature of the mapping studies of the scientist's contributions using scientometric tools. As a result, several interesting questions arose throughout our research, some of which were answered from the history and philosophy of science. However, others need to be analyzed by experts in the fields of Vallarta. Mapping research sends an invitation to interdisciplinary dialogue/research between experts in different areas of study to better understand the process of knowledge production both, individual and collective. (shrink)

La narrativa de José Saramago es centro de análisis reciente para todos aquel que incursionen en la literatura contemporánea. A través de La caverna, el escritor expone un sinnúmero de situaciones que deben ser reflexionadas y que en el presente artículo se abordan desde la perspectiva de los estudios culturales. Entre otros, se resalta el uso del lenguaje popular, la dialéctica entre lo rural y lo urbano, y finalmente la exclusión social y el consumismo. Este es, por lo tanto, (...) un estudio de análisis crítico de la obra La caverna de José Saramago, apoyado además en los trabajos interdisciplinarios que otros pensadores han ofrecido al respecto. El aporte desde los estudios culturales y la crítica realizada por Saramago no son ajenos a la preocupación por el ser, pues este se ve acorralado por las dinámicas que la sociedad impone. (shrink)

Quality of language comprehension determines performance in all kinds of activities including academics. Processing of words initially develops as auditory, and gradually extends to visual as children learn to read. School failure is highly related to listening and reading comprehension problems. In this study we analyzed sex-differences in comprehension of texts in Spanish in three modalities presented to 12–14-years old students, native in Spanish. We controlled relevant cognitive variables such as attention, phonological and semantic fluency and speed of processing. Girls’ (...) comprehension was similar in the three modalities of presentation, however boys were importantly benefited by dual-modality as compared to boys exposed only to visual or auditory text presentation. With respect to the relation of text comprehension and school performance, students with low grades in Spanish showed low auditory comprehension. Interestingly, visual and dual modalities preserved comprehension levels in these low skilled students. Our results suggest that the use of visual-text support during auditory language presentation could be beneficial for low school performance students, especially boys, and encourage future research to evaluate the implementation in classes of the rapidly developing technology of simultaneous speech transcription, that could be, in addition, beneficial to non-native students, especially those recently incorporated into school or newly arrived in a country from abroad. (shrink)

The SRL vs. ERL theory has shown that the combination of levels of student self-regulation and regulation from the teaching context produces linear effects on achievement emotions and coping strategies. However, a similar effect on stress factors and symptoms of university students has not yet been demonstrated. The aim of this study was to test this prediction. It was hypothesized that the level of student self-regulation (low/medium/high), in interaction with the level of external regulation from teaching (low/medium/high), would also produce (...) a linear effect on stress factors and symptoms of university students. A total of 527 undergraduate students completed validated questionnaires about self-regulation, regulatory teaching, stress factors and symptoms. Using an ex post facto design by selection, ANOVAs and MANOVAs (3 x 3; 5 x 1; 5 x 2) were carried out. The results confirmed that the level of self-regulation and the level of regulatory teaching jointly determined the level of stress factors and symptoms of university students. Once again, a five-level heuristic of possible combinations was configured to jointly determined university students’ level of academic stress. We concluded that the combination of different levels of student regulation levels and regulation from teaching process jointly determines university students’ level of academic stress. The implications for university students’ emotional health, stress prevention and well-being are established. (shrink)

The aim of this research was to establish linear relations (association and prediction) and inferential relations between three constructs at different levels of psychological research –executive dysfunction(microanalysis),self-regulation(molecular level), andself-vs.external regulation(molar level), in the prediction of emotion regulation difficulties. We hypothesized that personal and contextual regulatory factors would be negatively related to levels of executive dysfunction and emotion regulation difficulties; by way of complement, non-regulatory and dysregulatory personal, and contextual factors would be positively related to these same difficulties. To establish relationships, (...) we used a retrospective,ex postfacto design, where 298 university students voluntarily participated by completing standardized self-reports. Linear and structural correlational, predictive analyses were performed, as well as inferential analyses. Results were consistent and validated the proposed hypotheses, for both association and prediction. The most important result refers to the discriminant value of the five-level combination heuristic for predicting Executive Function and External (contextual) Dys-Regulation. In conclusion: (1) both personal and contextual regulation factors must be analyzed in order to better understand the variation in executive functions and emotion regulation difficulties; (2) it is important to continue connecting the different levels of the constructs referring to self-regulation, given their complementary role in the behavioral analysis of regulation difficulties. (shrink)

Neste estudo, com base nos principais escritos políticos de D. Frei Álvaro Pais O. Min. (c. 1270- c.1350) analisamos sua concepção a respeito da origem ou causa eficiente do poder espiritual e, igualmente, seu pensamento no tocante à finalidade ou causa final do referido poder. Quanto ao primeiro tópico, o Bispo de Silves quer principalmente refutar algumas das teses de Marsílio de Pádua contidas na 2ª Parte do seu Defensor da Paz, completamente opostas à teologia do sacerdócio católico e seus (...) graus hierárquicos e à do Primado Petrino. Para tanto, quase literalmente, haure-se, entre outras fontes, particularmente no De regimine christiano (1301) de Tiago de Viterbo OSA. Com respeito à finalidade do poder sacerdotal, de um lado, Álvaro sustenta a doutrina tradicional da Igreja a seu respeito e, de outro, em conseqüência, como partidário da hierocracia, defende a tese de que na, Societas Christiana, os detentores do poder espiritual, particularmente o Sumo Pontífice, ocupam uma posição mais eminente em relação aos governantes seculares. (shrink)

According to the archaeological data, the ancient colonization of the Canary Islands was initiated at the beginnings of the 1st millennium BC, by Imazighen populations. This colonization propitiated the introduction in the Canarian Archipielago of the Lybico-Berber inscriptions, among other cultural elements from the North African Amazigh world. In the following pages we analyze the ancient colonization of the Canary Islands in light of the study of Libyco–Berber inscriptions, Latino Canarian scripts, and indigenous material culture.

In this study, based in the main political works of D. Fr. Alvarus Pelagius O. Min. (c. 1270- c.1350) we analyze his conception on the origin or efficient cause of the spiritual power and, also, his thought about the finality or final cause of the mentioned power. Referring to the first topic, the Bishop of Silves wants principally refutes some Marsilius of Padua’s thesis contained in the Second Dictio of his Defensor Pacis, completely different of the theology of the catholic (...) priesthood and their hierarchic degrees and the Peter’s Primacy. With this purpose, ad litteram, he bases, between other sources, specially, in James’ of Viterbo OSA De regimine christiano (1301). Concerning the finality of the spiritual power, on the one hand, Alvarus supports the Church’s traditional thought about this matter and, the other hand, by consequence, as member and defender of the hierocratic thought, he defends the thesis according which, in the Societas Christiana, the priests, the bishops and, principally, the Roman Pontiff hold the most important position concerning the secular rulers. (shrink)

Content-based authorship identification is an emerging research problem in online social media networks, due to a wide collection of issues ranging from security to privacy preservation, from radicalization to defamation detection, and so forth. Indeed, this research has attracted a relevant amount of attention from the research community during the past years. The general problem becomes harder when we consider the additional constraint of identifying the same false profile over different social media networks, under obvious considerations. Inspired by this emerging (...) research challenge, in this paper we propose and experimentally assess an innovative framework for supporting content-based authorship identification and analysis in social media networks. (shrink)

La filosofía moral de Adam Smith se fundamenta en el papel de la imaginación para explicar el orden social en un nivel macro, y como mecanismo de identificación afectiva en un nivel micro. En ambos casos, el rol de la imaginación en nuestra psicología moral refuta la tesis de un homo economicus, o de que el ser humano está motivado a entrar en sociedad por su interés personal. Esto sirve de premisa para refutar la posición hobbesiana de un estado de (...) naturaleza histórico que está en la base de nuestros juicios morales que fundan la sociedad civil y la necesidad del magistrado. Adam Smith's moral philosophy is grounded in the role of the imagination in explaining the social order at a macro level and as a mechanism for affective identification at the micro level. In both cases, the role of the imagination in our moral psychology refutes the homo economicus thesis according to which human beings are motivated to enter into society due to personal interests. This premise serves to refute the Hobbesian position of a historical state of nature that underlies the moral judgments grounding civil society and the need for a magistrate. (shrink)

Grecia y nosotros.--Ideales de la vida humana en la antigua Grecia.--El guerrero tirteico.--Héroe griego y santo cristiano.