This article is the result of a research that was carried out to obtain the degree of Master's Degree in Education in the postgraduate program of the Faculty of Education of the Popular University of Cesar and monographic work of the degrees in Mathematics and Computer Science and Mathematics and Physics of the same university. The main objective of this study was to analyze the influence of the family environment on the learning and academic performance of students in tenth grade (...) trigonometry from a public educational institution in the city of Valledupar. Applying a mixed method, the research employed a simultaneous integrated design, where quantitative and qualitative data were collected and analyzed at the same time. This approach allowed for a complete and nuanced understanding of the research questions, providing a holistic view by exploring family dynamics and environment and how these impact performance and understanding of trigonometry. As for the implications for educational practice, it is evident that there is a need to implement strategies that involve families in the teaching-learning process of trigonometry, since the data collected revealed a clear correlation between the level of parental participation in education and students' understanding of trigonometric concepts. In addition, the study found that a positive and supportive family environment contributed significantly to higher academic achievement in trigonometry. (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)

In this article we explore multiple change operators, i.e., operators in which the epistemic input is a set of sentences instead of a single sentence. We propose two types of change: prioritized change, in which the input set is fully accepted, and symmetric change, where both the epistemic state and the epistemic input are equally treated. In both kinds of operators we propose a set of postulates and we present different constructions: kernel changes and partial meet changes.

This paper proposes the use of an argumentation framework with recursive attacks to address a trust model in a collaborative open multi-agent system. Our approach is focused on scenarios where agents share information about the credibility (informational trust) they have assigned to their peers. We will represent informants’ credibility through credibility objects which will include not only trust information but also the informant source. This leads to a recursive setting where the reliability of certain credibility information depends on the credibility (...) of other pieces of information that should be subject to the same analysis. Credibility objects are maintained in a credibility base which can have information in conflict. In this scenario, we will formally show that our proposal will produce a partially ordered credibility relation; such relation contains the information that can be justified by an argumentation process. (shrink)

The COVID-19 pandemic has impacted medical care in many ways; previously, a patient would enter a hospital and had an approximate idea of what would happen upon his admission, the physician informed them about it, but in the last two years this scenario has changed. Therefore, our aim was to identify if bioethical principles are present in the physician–patient relationship and the effect of these in the health care provided, through an observational and descriptive study where patients answered the validated (...) ReMePaB questionnaire that measures the presence of bioethical principles in the physician–patient relationship, on the seventh day of their hospital stay and 24 h after discharge, during the period from 1 August to 5 November 2020. In autonomy, an improvement in the score was observed in the second application compared to the first measurement; in the principle of non-vulnerability, the same scenario was observed for the first and second measurements, respectively. In the principles of beneficence, dignity, and justice, no statistically significant differences were observed. Considering the presence or absence of bioethical aspects in health care in this pandemic creates an area of opportunity to know the feelings of the patient during the care received and to maintain what is done well and improve those aspects that can be improved. (shrink)

We propose a revision operator on a stratified belief base, i.e., a belief base that stores beliefs in different strata corresponding to the value an agent assigns to these beliefs. Furthermore, the operator will be defined as to perform the revision in such a way that information is never lost upon revision but stored in a stratum or layer containing information perceived as having a lower value. In this manner, if the revision of one layer leads to the rejection of (...) some information to maintain consistency, instead of being withdrawn it will be kept and introduced in a different layer with lower value. Throughout this development we will follow the principle of minimal change, being one of the important principles proposed in belief change theory, particularly emphasized in the AGM model. Regarding the reasoning part from the stratified belief base, the agent will obtain the inferences using an argumentative formalism. Thus, the argumentation framework will decide which information prevails when sentences of different layers are used for entailing conflicting beliefs. We will also illustrate how inferences are changed and how the status of arguments can be modified after a revision process. (shrink)

Adults (more than 18 years old) are likely to reproduce the habits that they acquired during childhood and adolescence (from 6 to 16 years old). For that reason, teachers and parents have the responsibility to promote an active and healthy lifestyle in children and adolescents. Even though every school subject should promote healthy activities, Physical Education (PE) is the most important subject to foster well-being habits associated to healthy lifestyle during sport practice and other kinds of active tasks. Indeed, there (...) are many factors that influence the acquisition of healthy habits that should be taken into account when programs and activities are implemented in both educational and extracurricular context. In this sense, psychological and social factors are of utmost importance to achieve optimal experiences for an active and healthy lifestyle. However, due to the myriad of studies analyzing different factors in different contexts, there could be confusion when programs and pedagogical strategies are applied in educational or extracurricular contexts. The objective of this investigation is to analyze the state of art of the psychosocial factors which influence the engagement in physical activities and sport practice. The keywords used in this review were mainly: ‘Self-Determination Theory’, ‘motivation’, ‘Psychological need satisfaction, ‘physical activity and sport engagement’, ‘Elementary Education’, ‘Secondary Education’, ‘Physical Education’. The articles were selected according to the following criteria: (a) peer-reviewed original research published in international journals indexed in JCR or SJR, (b) published in English or Spanish, (c) about psychosocial factors which influence the physical activity and sport engagement, (b) in educational or extracurricular context. Research articles selected were found through nine databases. It was observed that physical activities and sport practice engagement are closely related to psychological factors. In particularly, intrinsic motivation was able to determine the active participation in any activity, including physical activity and sport practice during the implementation of Small-Sided Games and other kinds of pedagogical strategies (e.g., Pedagogical Models). Motivation was also closely related to flow state. Finally, these variables should be considered in order to organize effective programs to promote an active and healthy lifestyle in Physical Education classes. (shrink)

Most experimental studies of facial expression processing have used static stimuli (photographs), yet facial expressions in daily life are generally dynamic. In its original photographic format, the Karolinska Directed Emotional Faces (KDEF) has been frequently utilized. In the current study, we validate a dynamic version of this database, the KDEF-dyn. To this end, we applied animation between neutral and emotional expressions (happy, sad, angry, fearful, disgusted, and surprised; 1,033-ms unfolding) to 40 KDEF models, with morphing software. Ninety-six human observers categorized (...) the expressions of the resulting 240 video-clip stimuli, and automated face analysis assessed the evidence for 6 expressions and 20 facial action units (AUs) at 31 intensities. Low-level image properties (luminance, signal-to-noise ratio, etc.) and other purely perceptual factors (e.g., size, unfolding speed) were controlled. Human recognition performance (accuracy, efficiency, and confusions) patterns were consistent with prior research using static and other dynamic expressions. Automated assessment of expressions and AUs was sensitive to intensity manipulations. Significant correlations emerged between human observers’ categorization and automated classification. The KDEF-dyn database aims to provide a balance between experimental control and ecological validity for research on emotional facial expression processing. The stimuli and the validation data are available to the scientific community. (shrink)

This paper aims at comparing and relating belief revision and argumentation as approaches to model reasoning processes. Referring to some prominent literature references in both fields, we will discuss their (implicit or explicit) assumptions on the modeled processes and hence commonalities and differences in the forms of reasoning they are suitable to deal with. The intended contribution is on one hand assessing the (not fully explored yet) relationships between two lively research fields in the broad area of defeasible reasoning and (...) on the other hand pointing out open issues and potential directions for future research. (shrink)

This article aims to improve the knowledge on Generation Z as employees within workforce and in the workplace, as well as on the main thematic trends that drive the research on the topic. To this end, and using bibliometric techniques, a sample of 102 publications on this subject from Web of Science between 2009 and 2020 is analyzed. Research discusses the most published and most cited authors and journals to have a broad view of the context of the subject. Later, (...) through a longitudinal view, the study mainly focuses on analyzing the evolution of thematic clusters, to assess the progress of the themes, as well as the network around the principal motor cluster of each period. The obtained results suggest a hardly developed topic, which started to draw attention in 2018, while still having a wide margin for growth. The core of research on the topic has evolved around “Generation-Z” “generations,” “workplace,” “management” and “attitudes,” “leadership,” “career,” or “learning-teaching-education,” although a low keyword stability among periods was noted. There is a need for further development on a variety of aspects regarding this generation and the labor market, as the study shows a clear orientation toward management and generational diversity within the workplace. (shrink)

Epistemologists often remark that knowledge precludes luck. A true belief based on a guess or hunch is not knowledge because it seems merely fortuitous, too much of an accident, and, well, lucky that one happened to get things right. Of course, true beliefs based on guesses and hunches are not justified. However, Gettier cases have persuasively shown that even justified true beliefs can admit knowledge‐precluding kinds of luck. So in what sense are justified true beliefs that don’t amount knowledge lucky (...) or ‘true only by chance’? I will address three different approaches to epistemic luck that have received significant attention in the recent literature: reliability approaches to epistemic luck, credit approaches to epistemic luck, and responsibilist or control approaches to epistemic luck. I will then turn my attention to the implications that epistemic luck has for other epistemic states. I will focus particularly on state of understanding and examine whether, and to what extent, understanding is vulnerable to epistemic luck. (shrink)

We examine the comportment of the global trajectory of a piecewisely conceived single species population growth model. Formulation relies on what we develop as the principle of limiting factors for population growth, adapted from the law of the minimum of Liebig and the law of the tolerance of Shelford. The ensuing paradigm sets natality and mortality rates to express through extreme values of population growth determining factor. Dynamics through time occur over different growth phases. Transition points are interpreted as thresholds (...) of viability, starvation, and intraspecific competition. In this delivery, we focus on the qualitative study of the global trajectory expressed on continuous time and on exploring the feasibility of analytical results against data on populations growing under experimental or natural conditions. All study cases sustained fittings of high reproducibility both at empirical and interpretative slants. Possible phase configurations include regimes with multiple stable equilibria, sigmoidal growth, extinction, or stationarity. Here, we also outline that the associating discrete-time piecewise model composes the logistic map applied over a particular region of the phase configuration. Preliminary exploratory analysis suggests that the logistic map’s chaos onset could surpass once the orbit enters a contiguous phase region. (shrink)

Excelente iniciativa de publicar escritos éditos e inéditos de José Torres Orozco, uno de los últimos representantes del positivismo en México. Juan Hernández Luna presenta los aspectos biográficos del autor como su posición dentro del positivismo mexicano. Es de interés señalar que entre los escritos filosóficos hay varios dedicados a Nietzche. Entre los psicológicos, uno de 1922 se ocupa de Freud"--Handbook of Latin American Studies, v. 58.

There is growing interest in teaching computational thinking to preschool children given evidence that they are able to understand and use CT concepts. One of the concepts that is central in CT definitions, is the concept of control structures, but it is not clear which tools and activities are successful in teaching it to young learners. This work aims at providing a comprehensive overview of tools that enable preschool children to build programs that include control structures, and analyzing empirical evidence (...) of the usage of these tools to teach control structures to children between 3 and 6. It consists of three parts: systematic literature review to identify tools to teach CT to young children, analysis of tools characteristics and the possibilities that they offer to express control structures, and SLR to identify empirical evidence of successful teaching of control structures to young children using relevant tools. This work provides an understanding of the current state of the art and identifies areas that require future exploration. (shrink)

En esta revisión bibliográfica completa, se analizan instrumentos de evaluación pragmática comunicativa utilizados durante la práctica clínica con población hispanohablante, con el objeto de caracterizarlos, establecer y comparar las conductas comunicativas y lingüísticas evaluadas y discutir su utilidad en la pragmática clínica. Se identifican doce instrumentos. Predomina una concepción amplia de la pragmática que la entiende como perspectiva más que como nivel del lenguaje y que se apoya no solo en estudios pragmáticos en sentido estricto, sino también en el análisis (...) del discurso, el análisis conversacional y los estudios sobre comunicación no verbal. La mayor parte de los instrumentos analizados corresponde a pautas de cotejo centradas en la evaluación de la pragmática interactiva. La información sobre variables psicométricas es escasa. Se concluye que parece necesario desarrollar instrumentos formales con propiedades psicométricas establecidas que permitan determinar con precisión las habilidades pragmáticas alteradas, contribuyendo al diagnóstico y tratamiento de los pacientes. (shrink)

Esta es la versión escrita de una entrevista realizada a Eugenio Bulygin, profesor emérito de Filosofía del Derecho (UBA), con respecto a quien toda presentación podría resultar o bien imcompleta o bien superflua. -/- Nuestra intención al realizar esta entrevista fue indagar acerca de las respuestas que dieron a esos interrogantes las personas que, en ese momento, ocuparon posiciones de toma de decisión en la Facultad de Derecho de la UBA. La elección del entrevistado, Eugenio Bulygin, no podría haber sido (...) mejor. No solo por su lucidez y por haber ocupado un puesto de suma importancia en la transición democrática, el de Decano Normalizador, sino porque, además, ha estado siempre, antes y después de la transición, estrechamente vinculado a la Facultad, de modo que provee un testimonio invaluable de sus transformaciones a lo largo de la segunda mitad del S. XX. (shrink)

This work considers the formalisation of the merging process of stratified belief bases, where beliefs are stored in different layers or strata. Their strata are ranked, following a total order, employing the value the agent using the belief base assigns to these beliefs. The agent uses an argumentation mechanism to reason from the belief base and obtain the final inferences. We present two ways of merging stratified belief bases: the first is defined by merging two strata without belief preservation, and (...) the second by merging two strata with belief preservation. For these operators, as layers merge, it is possible that some information has to be deleted from the stratum to maintain consistency. The latter merge operator will be defined as performing their actions so that information removed from the stratum is preserved after the merging by moving it to a stratum containing information perceived as having a lower value and where those beliefs may trigger a new revision, possibly starting a cascading effect. (shrink)

Recent descendants of David Lewis, such as Stephen Torre, Dilip Ninan, and Dirk Kindermann have utilized multi-centered propositions, which are roughly sets of possible worlds centered on a sequence of individuals, to characterize the content of attitudes. In an attempt to explain counterfactual attitudes such as wishing and imagining, Ninan (2012, 2013) developed a more fine-grained characterization of multi-centered propositions than others in the multi-centered camp. While Ninan provides a systematic explanation of the nature of de se attitudes (attitudes one (...) expresses with first-person pronouns like ‘I’ or ‘me’), the nature of other types of indexical attitudes (attitudes one expresses with indexical terms like ‘you,’ ‘today,’ ‘now,’) is not explored. This paper does two things. First, it demonstrates how we can account for indexical attitudes within Ninan’s framework. This, however, has the consequence of generating propositions of limited accessibility of sorts, which in turn conflict with a received and simple model of linguistic communication. According to this simple model, successful communication consists of the transmission of mental content from speaker to hearer. Second, in light of this conflict, the paper proposes an adjustment to Ninan’s theory in order to avoid commitment to propositions of limited accessibility, and thus preserve the shareability of attitudinal content from speaker to hearer. (shrink)

Erudition as a cultist topic and style, recreated in countless traditional sources, helps Colombian writer R. H. Moreno-Durán to establish a delicate equilibrium between the parodic forms of linguistics research and the recreational contents that reflect the thinking conscience of men and the dialogic sphere of their existence. All these elements are present in his novel, El toque de Diana (Diana’s touch) and are conjugated to the theoretical contribution of Mijail Bajtín, and they make it possible to explain the exploration (...) of a fictional legacy that depends on the willful language of its characters to metaphorize the unfinished and multifaceted character of a violent society, in continuous crisis, such as the Colombian society. (shrink)

The purpose of this paper is to introduce everyday aesthetics in education. First, it presents everyday aesthetics as a subdiscipline within philosophical aesthetics, that revisits sensory perception as the backdrop of all experience, claims ordinary life is a proper venue for aesthetic inquiry, and problematizes the impact aesthetic preferences have on habitual decisions. Second, the paper argues that among the diverse matters students learn in school, they learn—explicitly or implicitly—what and how to perceive, as well as the pedagogical purposes of (...) daily perception. School models the relationships that students will develop between what they perceive, what they think about it, and how they act accordingly. Next, the paper elaborates on the notions of “school aesthetic matrixes” and “space and place in school”. School aesthetic matrixes refer to perceptual patterns that allow characterizing relationships between daily perception and the pedagogical project of a school. They manifest through expressions such as prison school, home school, mall school, etc. Space and place in school allude to concomitant experiences, of corporeal basis, that allow describing how we inhabit the world. What distinguishes them is the approach each one gives to the senses and the body. The paper concludes by calling attention to the comprehension and role of perception in education, urging to mind the aesthetic-pedagogical character that students develop throughout 12 years of schooling. Ultimately, the key relationships we develop with ourselves, others, and the world, entail a basic perceptual dimension that can be educated to become more purposefully and integrally present in life. (shrink)

Mathematical chemistry is often thought to be a 20th-century subdiscipline of chemistry, but in this paper we discuss several early chemical ideas and some landmarks of chemistry as instances of the mathematical way of thinking; many of them before 1900. By the mathematical way of thinking, we follow Weyl's description of it in terms of functional thinking, i.e. setting up variables, symbolizing them, and seeking for functions relating them. The cases we discuss are Plato's triangles, Geoffroy's affinity table, Lavoisier's classification (...) of substances and their relationships, Mendeleev's periodic table, Cayley's enumeration of alkanes, Sylvester's association of algebra and chemistry, and Wiener's relationship between molecular structure and boiling points. These examples show that mathematical chemistry has much more than a century of history. (shrink)

Since Ernest Sosa's (1980) seminal paper, a variety of views on the nature of intellectual virtues and their role in one's epistemic theory have emerged. These views, including Sosa's original, largely draw from moral counterparts for their motivation, articulation, and defense. Consider two broad accounts of intellectual virtues: -/- Consequentialist Conception (CC): An intellectual virtue is a stable disposition, ability, or power to reliably acquire epistemic goods (e.g., true belief and knowledge). -/- Aristotelian Conception (AC): An intellectual virtue is a (...) character trait involving an underlying psychological and behavioral structure directed at various epistemic goods. (shrink)

El objetivo del presente texto es realizar un acercamiento a las diferentes corrientes de pensamiento económico feminista en función de sus propuestas de redefinición del objeto de estudio de la economía; propuestas que pueden entenderse como intentos de deconstrucción de las dicotomías económico/no-económico, trabajo/no-trabajo propias de los marcos teóricos androcéntricos. Se identifican dos estrategias de deconstrucción, con diferentes implicaciones tanto para el ámbito de la teoría económica como para el del análisis empírico y la propuesta política. La primera de ellas (...) está basada en el descubrimiento y revalorización del “otro” económico, el trabajo doméstico. La segunda, en proporcionar un “término bisagra”, el de sostenibilidad de la vida, que permita trascender las dicotomías y a partir del cuál se revisan conceptos asociados, como el de trabajo. Finalmente, se argumentará que se está produciendo un desplazamiento teórico hacia esta última estrategia. (shrink)

Se sostiene que la propuesta de Rodriguez-Pereyra de que los analíticos iberoamericanos publiquemos todos nuestras investigaciones en inglés es inviable e indeseable.

ABSTRACT This article interprets a recently recovered manuscript, Tratado de astronomía y la reformaçión del tiempo, composed by Antonio Sánchez in New Granada c.1696, in the context of the Spanish and Renaissance cosmographies. Sánchez’s Tratado proposes a spherical astronomy, in which celestial bodies – including comets — move in orbs containing pyramidal knots that explain the changing speed observed in the motion of planets. From this astronomy and following the peninsular style of repertorios, Sánchez derives two major conclusions: the corrected (...) length of the solar year and a revised birth date of Jesus. Taking as center of reference Vélez, where Sánchez was based, these claims led to conclusions in domains ranging from calendric astronomy to eschatology, including the incorporation of the indigenous peoples into salvation narrative and a demonstration of the arrangement of the celestial orbs at the Last Judgment. Sánchez’s Tratado constitutes an expansion of the Spanish mathematical cosmography that sheds light on the production of knowledge in the Spanish-American world and, at the same time, provides elements to reassess our understanding of the global circulation of Renaissance and early modern ideas. (shrink)

We analyze the connections of Lavoisier system of nomenclature with Leibniz’s philosophy, pointing out to the resemblance between what we call Leibnizian and Lavoisian programs. We argue that Lavoisier’s contribution to chemistry is something more subtle, in so doing we show that the system of nomenclature leads to an algebraic system of chemical sets. We show how Döbereiner and Mendeleev were able to develop this algebraic system and to find new interesting properties for it. We pointed out the resemblances between (...) Leibniz program and Lavoisier legacy, particularly regarding the lingua philosophica for understanding and thinking Nature, in this particular case, chemistry. In the second part we discuss, from the linguistic viewpoint, how Lavoisian algebraic system may be taken further to build a language. We study the constituents of such a chemical language. Finally, we formalize some of the ideas here presented by using elements of network theory and discrete mathematics. (shrink)

Young children judge that violations of ordinary, causal constraints are impossible. Yet children’s religious beliefs typically include the assumption that such violations can occur via divine agency in the form of miracles. We conducted two studies to examine this potential conflict. In Study 1, we invited 5- and 6-year-old Colombian children attending either a secular or a religious school to judge what is and is not possible. Children made their judgments either following a minimal prompt or following a reminder of (...) God’s extraordinary powers. Irrespective of their education, and whether or not they had been reminded of God’s extraordinary powers, children systematically judged violations of ordinary, causal constraints to be impossible. In Study 2, we asked if more extensive reminders of God’s special powers would prompt religious children to say that the impossible can happen. Five- and 6-year-old Colombian children attending either a secular or a religious school were presented with narratives in which the protagonist desired an ordinarily impossible outcome. In half the stories, the protagonist prayed to God for the desired outcome. Irrespective of education and of whether the protagonist prayed, children systematically concluded that the desired outcome would not occur and justified that conclusion by reference to ordinary causal constraints. Nevertheless, in a minority of their replies children did assert that violations of ordinary causality are possible. Overall, irrespective of their religious education, young children judge that events rarely deviate from their natural course; only occasionally do they acknowledge exceptions. (shrink)

In this essay, we explore the philosophical and theoretical resonances of the artwork Qatipana from the perspective of some key insights of Gilbert Simondon’s information processing system approach. Qatipana (Quechua word that means flow, sequence, transmission) is a hybrid ecosystem of information flow which, even though not the kind of dispositive systems theory was designed to read, offers some valuable empirical insights to test some key aspects of Simondon’s information processing systems. In particular, we are interested in observing how Simondon’s (...) becoming and individuation play out in an algorithmic cycle performed by the cognitive system of an Artificial Intelligence agent: how does mono-technology and computerization of cultural techniques influence the nature of knowing the affection of being with others (people, things, animals)? We contrast Simondon’s contributions with the work of Norbert Wiener and Stafford Beer on information in cybernetics and the cosmotechnics and Technodiversity of Chinese philosopher Yuk Hui. Furthermore, we offer a provisional assessment of the reach, limits, and possibilities this kind of symbiotic crossing of technologies and arts: it is a field filled with challenges and unresolved complexities that should encourage us to recognize the urgency that is implied in the disruptive (and creative) we can see unfolding in social and political life. The already pervasive (and growing) presence of computational systems has become both a tremendous risk and a vertiginous deployment of liberating opportunities. Latin America and elsewhere are desperately calling for an insightful and imaginative engagement. (shrink)

Bi-intuitionistic logic is the result of adding the dual of intuitionistic implication to intuitionistic logic. In this note, we characterize the expressive power of this logic by showing that the first order formulas equivalent to translations of bi-intuitionistic propositional formulas are exactly those preserved under bi-intuitionistic directed bisimulations. The proof technique is originally due to Lindstrom and, in contrast to the most common proofs of this kind of result, it does not use the machinery of neither saturated models nor elementary (...) chains. (shrink)

KOINONIA/ASETT MINGA/MUTIRÃO DE REVISTAS DE TEOLOGIA LATINO-AMERICANAS Teología de la Liberación y movimiento ecuménico: breve reflexión desde una práctica (Liberation Theology and ecumenical movement: a brief reflection from praxis).

En 1982, Jack Goody publicó _Cooking, Cuisine and Class. _ _A Study in Comparative Sociology. _En esta obra, Goody se interesó por las culturas culinarias de diferentes espacios geográficos del mundo, así como por la relación entre el desarrollo de una cocina refinada y el surgimiento de una sociedad compleja. Entre sus conclusiones, demostró que la manera de comer constituye un aspecto ensencial en cualquier sociedad. Más en concreto, señaló que en diferentes culturas europeas y asiáticas el surgimiento de una (...) cocina compleja se debía asociar al desarrollo de un “hombre jerárquico”. Bajo esta premisa, el presente artículo pretende analizar cómo cambiaron las culturas alimentarias de los pueblos germanos y de los romanos desde que entraron en contacto unos y otros, tomando como punto de partida y de referencia la _Germania _de Tácito, primer relato articulado sobre las tribus germanas, y, como punto de llegada, el final de la Antigüedad. (shrink)

Se busca rastrear la imagen que Platón tiene de Heráclito y articularla con la estructura argumentativa del Cratilo, para comprender las necesidades textuales a las que responde la doctrina del flujo perpetuo, es decir, la discusión sobre la corrección (ὀρθότης) del nombre. Gracias a la inclusión del testimonio heraclíteo, resulta posible rastrear la presunta consolidación de la tesis sobre los nombres primarios y los secundarios como el eje de la separación entre dos planos de realidad (uno estable y uno móvil) (...) y de la teoría de las Ideas -es decir, como la base de la epistemología platónica presente en los diálogos de madurez-. The article seeks to trace the image Plato has of Heraclitus and connect it with the argumentative structure of the Cratylus in order to understand the textual needs that give rise to the doctrine of perpetual flux, that is, the discussion regarding the correctness (ὀρθότης) of names. The inclusion of Heraclitus's testimony makes it possible to trace the alleged consolidation of the thesis regarding primary and secondary names as the axis of separation between two levels of reality (one stable, the other, changing) and the theory of Ideas -that is, as the basis of Plato's epistemology as set forth in the late dialogues-. (shrink)

In this article I present the two essential conceptions of conspiracy theories, offering reasons for working from the point of view of the second one. Next, I introduce the debate between internalism and externalism of justification and, following the most contemporary perspectives, I focus on the political and social applicability of the second one, for which I use the srinivasian concept of “bad ideology case”. This new perspective allows me to interpret the conspiracy theories in function of this debate and (...) show their lack of epistemic justification. Finally, I analyse the epistemic trust phenomenon, an opposed model to conspiracy theories, answering affirmatively to the two essential questions of its epistemic justification and its criticality. (shrink)