The Air Quality Index (AQI) shows the state of air pollution in a unique and more understandable way. This work aims to forecast the AQI in Algeciras (Spain) 8 hours in advance. The AQI is calculated indirectly through the predicted concentrations of five pollutants (O3, NO2, CO, SO2 and PM10) to achieve this goal. Artificial neural networks (ANNs), sequence-to-sequence long short-term memory networks (LSTMs) and a newly proposed method combing a rolling window with the latter (LSTMNA) are employed as the (...) forecasting techniques. Besides, two input approaches are evaluated: using only the data from the own time series of the pollutant in the first case or adding exogenous variables in the second one. Several window sizes are employed (24, 28 and 72 hours) with ANNs and LSTMNAs. Additionally, several feature ranking methods are applied in the exogenous approach to select the most relevant lagged variables to feed the models. Results show how the proposed exogenous approach increases the performance of the prediction models. Besides, the newly proposed method LSTMNA provides the best performances in most of the cases evaluated. Hence, it constitutes an exciting alternative to standard LSTMs and ANNs to predict pollutants concentrations and, consequently, the AQI. (shrink)

This study tested a structural model of cognitive-emotional explanatory variables to explain performance in mathematics. The predictor variables assessed were related to students’ level of development of early mathematical competencies (EMCs), specifically, relational and numerical competencies, predisposition toward mathematics, and the level of logical intelligence in a population of primary school Chilean students (n = 634). This longitudinal study also included the academic performance of the students during a period of four years as a variable. The sampled students were initially (...) assessed by means of an Early Numeracy Test (ENT), and, subsequently, they were administered a Likert-type scale to measure their predisposition toward mathematics (EPMAT) and a basic test of logical intelligence (TILE). The results of these tests were used to analyse the interaction of all the aforementioned variables by means of a structural equations model. This combined interaction model was able to predict 64.3% of the variability of observed performance. Preschool students' performance in EMCs was a strong predictor for achievement in mathematics for students between 8 to 11 years of age. Therefore, this paper highlights the importance of EMCs and the modulating role of predisposition toward mathematics. Also, this paper discusses the educational role of these findings, as well as possible ways to improve negative predispositions toward mathematical tasks in the school domain. (shrink)

In this note, the problem of tracking random references and rejecting random perturbations in a quadrotor, both generated by an auxiliary system named exosystem, is solved by extending the deterministic tracking problem to the area of stochastic processes. Besides, it is considered that only a part of the state vector of the quadrotor is available through measurements. As a consequence, the state vector of the plant must be estimated in order to close the control loop. On this basis, a controller (...) to track random references and to reject random perturbations is developed by combining a Kalman filter to estimate the references and perturbations of an exosystem and an observer to estimate the states of a quadrotor. Besides, to obtain a more practical controller, the analysis is carried out in discrete time. Numerical simulations are used in a quadrotor to confirm the validity and effectiveness of the proposed control. (shrink)

Uscatescu, J. El tema de la Ilustración.--Flórez, R. La Ilustración y la comprensión de la historia.--González Alvarez, A. La Ilustración y el fenómeno religioso.--Merino, J. A. El hombre en Rousseau.--Mauzi, R. El problema religioso en la Nueva Eloísa.

v. 1. Edad Media. 4. ed. -- v. 2. La época del Renacimiento. 2. ed. -- v. 3. El siglo del Barroco. 3. ed.

Inserte lugares de la memoria funcionan como marcas significativas de una historia reconstruida desde el presente, que conforman distintos paisajes culturales, que son representaciones simbólicas de territorios como la Ciudad Deportiva Magdalena Mixiuhca y sus geosímbolos deportivos.El objetivo es entender desde el Método de la Hermenéutica Profunda, la Teoría de los Sistemas Complejos y el Pensamiento Complejo, como estos lugares de alta significación del deporte resultan fundamentales en la trasferencia de significados y emociones, que identifican a este espacio apropiado física (...) y simbólicamente, concluyendo que esto es porque detonan recuerdos evocativos de acontecimientos emblemáticos que consolidan diversas identidades colectivas. (shrink)

In this work we argue that there is no strong demarcation between pure and applied mathematics. We show this first by stressing non-deductive components within pure mathematics, like axiomatization and theory-building in general. We also stress the “purer” components of applied mathematics, like the theory of the models that are concerned with practical purposes. We further show that some mathematical theories can be viewed through either a pure or applied lens. These different lenses are tied to different communities, which endorse (...) different evaluative standards for theories. We evaluate the distinction between pure and applied mathematics from a late Wittgensteinian perspective. We note that the classical exegesis of the later Wittgenstein’s philosophy of mathematics, due to Maddy, leads to a clear-cut but misguided demarcation. We then turn our attention to a more niche interpretation of Wittgenstein by Dawson, which captures aspects of the aforementioned distinction more accurately. Building on this newer, maverick interpretation of the later Wittgenstein’s philosophy of mathematics, and endorsing an extended notion of meaning as use which includes social, mundane uses, we elaborate a fuzzy, but more realistic, demarcation. This demarcation, relying on family resemblance, is based on how direct and intended technical applications are, the kind of evaluative standards featured, and the range of rhetorical purposes at stake. (shrink)

Mientras que las ciencias físicas han desvelado en la modernidad gran número de problemas, las ciencias sociales y humanas siguen enfrentándose al "monstruo de lo social"; sin lograr resolver los enigmas que suscita la vida colectiva. Los conflictos sociales, políticos y culturales no sólo no han sido paliados sino que a veces se han vuelto aún más opacos. Esta paradoja que conduce al desaliento, interroga directamente a disciplinas como la antropología social y cultural. La antropología crítica como saber en permanente (...) transformación se ha convertido de esta manera en un gozne indispensable de la sociedad plural y democrática. (shrink)

In this article, from the characterization of technoscience of the English historian J. Pickstone and the recognition of the importance of models and modelling in research and teaching of chemistry, the term technochemistry is introduced as a way of chemical knowledge. With the above new possibilities, rethinking the chemistry curriculum is opened.

O texto analisa a presença da família Sousa na literatura nobiliárquica portuguesa nos anos imediatamente posteriores à Restauração. Trata-se de ver a permeabilidade de certos valores nobiliárquicos na configuração da memória de um apelido e a sua implicação com a dimensão política da família Sousa. Em Portugal, o peso do genealógico foi um ponto essencial na configuração de uma definição-tipo de nobreza. Por isso a proliferação, desde a baixa Idade Média, de textos sobre famílias à sombra do Nobiliário do conde (...) D. Pedro foi uma das constantes. Esta fecunda e prolífera produção permite-nos perceber as variantes discursivas em torno da honra, da virtude e da preeminência nobiliárquica em Portugal e contextualizar a nobreza portuguesa no espaço ibérico e europeu, pois comprovamos a presença constante de valores transversais a todas as nobrezas católicas do continente. Além disso, a conjuntura de 1640 soma um novo elemento de interpretação como é o da ideia de fidelidade ao novo projecto monárquico encabeçado pelos Braganças. Partindo da análise das formas do discurso em torno da nobreza, este trabalho de História cultural, e do mesmo modo social, é uma mostra evidente do papel que o escrito teve na modernidade no momento de estabelecer formas de comunicação dos valores sociais dominantes. (shrink)

Under the influence of naturalistic approaches, contemporary philosophy of science tends to characterize scientific objectivity not by virtue of the individualistic following of rules or satisfying epistemic utilities, but as a property arising from the organisational features of groups. This paper presents a critical review of one such proposal, that of Helen Longino, probing some of its main features against the debate between Pasteur and Pouchet in mid-nineteenth-century France regarding the spontaneous generation of life. After considering some weaknesses and strengths, (...) it is argued that Longino’s social epistemology is only able to generate normativity by implicitly assuming a classic procedural notion of epistemic acceptability. The paper also aims to use this historical case to shed light on the complex, multidimensional nature of the dynamics of actual science, arguing both against purely epistemic and exclusively social approaches in a satisfactory meta-scientific explanation of controversies. (shrink)

This book clarifies the meaning of the most important and pervasive concepts and tools in bioethical argumentation and assesses the methodological suitability of the main methods for clinical decision-making and argumentation. The first part of the book is devoted to the most developed or promising approaches regarding bioethical argumentation, namely those based on principles, values and human rights. The authors then continue to deal with the contributions and shortcomings of these approaches and suggest further developments by means of substantive and (...) procedural elements and concepts from practical philosophy, normative systems theory, theory of action, human rights and legal argumentation. Furthermore, new models of biomedical and health care decision-making, which overcome the aforementioned criticism and stress the relevance of the argumentative responsibility, are included. (shrink)

O presente texto visa analisar de maneira introdutória como se constrói no decurso do pensamento filosófico ocidental a relação de interdependência entre democracia e educação, os argumentos que lhe dão sustentação, bem como as possíveis controvérsias de significação nela existentes. Para esse fim, examinamos obras fundamentais da filosofia e em específico da filosofia da educação, buscando compreender asserções de autores que implícita ou explicitamente tratam dessa articulação.

La autonomía es parte esencial de la fundamentación moral de la sociedad contemporánea y ha dado lugar en el ámbito asistencial a un nuevo modelo de relación y de toma de decisiones clínicas. El objetivo de este artículo es exponer el significado de la autonomía del paciente a través de la distinción de tres dimensiones: autonomía decisoria, autonomía informativa y autonomía funcional o ejecutiva, la periodización de su evolución normativa a lo largo de tres etapas, y la propuesta de cuestiones (...) o desafíos que merecen ser objeto de estudio y aplicación en el futuro. (shrink)

Eschatological beliefs have matured alongside both biblical composition and Christian history. This evolution can be traced using cultural evolutionary studies. The process reflects attempts to adapt to new conditions and challenges—sometimes giving place to more focused views, but also sometimes to failures and dysfunctional forms or fruitless variations. It becomes a theological duty to assess this evolution better. The key element is the reception of these eschatological beliefs, to discern what expressions of them are more helpful in encouraging Christian fidelity, (...) coping with distress, and engaging with individual and societal challenges. In this article, we outline a research programme that links eschatology to anthropology, and that tries to analyse beliefs according to state‐of‐the‐art methods, such as evolutionary cultural studies and research on the believing process. We also contribute a case study based on the concept of hell to test the proposed approach. (shrink)

Este articulo analiza el proceso de integración del Mercosur en el que participan Argentina, Brasil, Paraguay y Uruguay y sus efectos sobre la ciudadanía política y social. En la primera parte del mismo los autores examinan los rasgos, el contexto de nacimiento y la filos ofía del proceso de integración mercosureño. La segunda parte analiza la evoluciónde la democracia y de la justicia social durante el proceso de integración. Los autores llegan a la conclusión de que el modelo de integración (...) mercosureño no puede contrarrestar la crisis de la democracia y de la justicia social que tienen lugar especialmente en Argentina y Brasil. (shrink)

In 1946 there were three democracies in the world with constitutions that, on the one hand, required the government to obtain the support of a legislative majority in order to come to and remain in power and, on the other hand, established a popularly elected president. In 2002, this number had grown to 25. Constitutions with this feature are often considered to be problematic, and, given the number of new democracies that have adopted them, have received considerable attention from political (...) scientists. The primary concern has to do with the potential for conflict between the assembly supported government and the popularly elected president, which may lead to unstable governments, policy paralysis, and the eventual undermining of the democratic regime. Concern has also been raised regarding the negative role a popularly elected president may have on party development and the that in a pure parliamentary democracy runs from voters to government through political parties. In this paper, we examine the effect the combination of assembly confidence with a popularly elected president has on government instability, accountability, legislative effectiveness, and democratic survival. We also examine the impact on these outcomes of different combinations of presidential powers. We find that the introduction of a popularly elected president in parliamentary constitutions is of little significant impact and that the preoccupation with the specific powers of the president is mostly overblown. (shrink)

Este trabajo es continuador de la línea de investigación sobre la filosofía del derecho alemana contemporánea llevada a cabo por el autor, a través del análisis de cuestiones clásicas de la filosofía del derecho. Para ello, se aborda la concepción de la pena de muerte en el pensamiento jurídico-filosófico de Arthur Kaufmann, el cual abordó esta problemática en relación con el contenido esencial del derecho a la vida y el debate doctrinal de posguerra. El artículo está dividido en las siguientes (...) partes: en primer lugar, se analiza, desde un punto de vista jurídico-filosófico, la evolución histórica de la pena de muerte a la centrando la atención en los fundamentos para su abolición y las posiciones a favor de su mantenimiento. En segundo lugar, se establecen similitudes y diferencias, en el entendimiento de la pena capital, entre la teología moral contemporánea, el pensamiento de Aquino y la obra de Arthur Kaufmann. A continuación, en base a una visión comparativa, se expone cómo el autor alemán, a la vez que mantiene una concepción católica ante la pena de muerte y la culpa sin pena, sigue la senda dejada por su maestro Radbruch, siendo en este tema no necesariamente incoherente. Por último, se establecen algunas conclusiones. (shrink)

Este trabajo se propone demostrar que el diseño editorial deconstructivo, a la par que pone en jaque la identidad del lector, en la forma en la que la educación le enseñó que debe reconocerse, lo empuja a identificarse con una nueva forma de ser y comprender el mundo, adquiriendo mayor conciencia de su carácter globalizado, rizomático, polifónico y polisémico. El diseño editorial deconstructivo se levantaba en su momento contra la imposición homogeneizadora de una identidad proclive a la defensa de los (...) valores instituidos por el poder hegemónico. Sin embargo, ese poder, con su capacidad para asimilar en su seno y bajo sus propios valores a lo que en algún momento le fue contestatario, logra convertir en propia a la deconstrucción misma. ¿Por qué? Tal vez sea porque la deconstrucción por sí sola no basta, porque no puede ser el lugar definitivo de llegada, porque tiene que señalar un tránsito hacia alguna otra cosa que es, en definitiva y a la larga, la única que puede darle un verdadero sentido revolucionario. (shrink)

Mostramos el valor de los estudios biográficos para comprender los modos de ser sujetos en comunidades de diversa tolerancia hacia las prácticas homoeróticas. El texto reflexiona sobre la constitución de comunidades imaginarias a partir de trabajos etnográficos en comunidades indígenas; la participación de medios de comunicación; las injerencias de ONG sobre la comunidad zapoteca, en especial en Juchitán, tierra de tolerancias sexual hacia los muxes. Los muxes cumplen diversas tares sociales y culturales, son hombres con prácticas homoeróticas con otros hombres (...) que ni ellos ni el grupo social considera homosexuales. Los zapotecas forman parte de los grupos originarios del sur de México, tienen fuerte presencia en el país en su conjunto, desarrollan prácticas de amplia participación de la mujer, tanto así que algunos científicos sociales la han denominado cultura matriarcal. En el presente documento se discuten seis asuntos sobre la región a partir de argumentos generados por un miembro de amplio reconocimiento en la región de Juchitán: 1) la valoración del rol de la mujer al considerar que es un grupo con prácticas matriarcales; 2) el mito del paraíso de la izquierda; 3) el mito del paraíso gay; 4) la idea de un tercer sexo; 5) la idea de aceptación generalizada de los muxes; 6) la generalización del travestismo. Finalmente, se plantean algunos efectos de la intervención de los científicos sociales, de los medios de difusión masiva y de las ONG sobre la profesionalización del pueblo para dar respuesta a la diversidad de intereses de los externos a la comunidad. (shrink)