We distinguish two pathways people may follow when they join violent groups: compliance and internalization. Compliance occurs when individuals are coerced to join by powerful influence agents. Internalization occurs when individuals join due to a perceived convergence between the self and the group. We searched for evidence of each of these pathways in field investigations of former members of two renowned terrorist organizations: the Liberation Tigers of Tamil Eelam and Islamist radical groups. Results indicated that ex-fighters joined LTTE for reasons (...) associated with both compliance and internalization but that ex-fighters joined Islamist radical groups primarily for reasons associated with internalization. When compliance occurred, it often took the form of coercion within LTTE but involved charismatic persuasion agents within Islamist groups. This evidence of systematic differences in the reasons why fighters enter violent groups suggests that strategies for preventing radicalization and fostering de-radicalization should be tailored to particular groups. (shrink)

Este artículo tiene como objetivo determinar cuál es el valor filosófico de la anaideia -ἀναίδεια- (desvergüenza) y su relación con la parresia -παρρησία- (franqueza, libertad de palabra) en Diógenes de Sinope. Se lleva a cabo una lectura, análisis e interpretación de fuentes clásicas sobre la escuela cínica, y particularmente del libro VI de Diógenes Laercio “Vidas y sentencias de los filósofos más ilustres”, texto clave en los estudios sobre el cinismo. El resultado de este análisis es que en esos textos, (...) se representa a un Diógenes de Sinope asumiendo gestos y réplicas de palabra en las que el aidós y la moderación no resultan propios de su actitud filosófica, razón por lo cual la anaideia es considerada como una afirmación de la libertad frente a la crítica que establece el filósofo respecto a la vida civilizada y artificial. Se concluye que para valorar de manera positiva el cinismo de Diógenes y vincularlo a toda la tradición griega que privilegia la razón y la virtud, es necesario valorar el estatuto ético y filosófico de la parresía: libertad de palabra, franqueza. (shrink)

Esta comunicación examina cómo la pandemia de la COVID-19 ha impactado en la ya existente brecha de género en la trayectoria académica de las investigadoras y docentes de nuestras universidades. Para examinar dicho impacto, se realiza una revisión de varias investigaciones realizadas en España y en Portugal durante el periodo de confinamiento derivado de la pandemia. Los resultados recabados indican que durante el confinamiento creció la producción científica de los varones, y disminuyó la de las mujeres, entre otras diferencias relacionadas (...) con el trabajo académico en general (docencia, gestión, investigación). Una de las principales causas apunta a la brecha de cuidados existente. Esta situación requiere la necesidad de ampliar las medidas para evitar la desigualdad de género en la academia. (shrink)

Nowadays, the quality standards of higher education institutions pay special attention to the performance and evaluation of the students. Then, having a complete academic record of each student, such as number of attempts, average grade and so on, plays a key role. In this context, the existence of missing data, which can happen for different reasons, leads to affect adversely interesting future analysis. Therefore, the use of imputation techniques is presented as a helpful tool to estimate the value of missing (...) data. This work deals with the academic records of engineering students, in which imputation techniques are applied. More specifically, it is assessed and compared to the performance of the multivariate imputation by chained equations methodology, the adaptive assignation algorithm based on multivariate adaptive regression splines and a hybridization based on self-organisation maps with Mahalanobis distances and AAA algorithm. The results show that proposed methods obtain successfully results regardless the number of missing values, in general terms. (shrink)

According to kin selection theory, indirect reproductive advantages may induce individuals to care for others with whom they share genes by common descent, and the amount of care, including self-sacrifice, will increase with the proportion of genes shared. Twins represent a natural situation in which this hypothesis can be tested. Twin pairs experience the same early environment because they were born and raised at the same time and in the same family but their genetic relatedness differs depending on zygosity. We (...) compared the degree of willingness to fight and sacrifice for the co-twin among monozygotic and dizygotic pairs in a sample of 1443 same-sex and opposite-sex twins. We also analyzed the effect of the subject’s gender and that of the co-twin on those altruistic behaviors. Results partly supported the postulated explanation. MZ twins were significantly more likely than DZ twins to self-sacrifice for their co-twins, but zygosity did not affect willingness to fight for him/her. The genders of the subject and of the co-twin, not genetic relatedness, were the best predictors of aggressive altruistic intentions. (shrink)

According to kin selection theory, indirect reproductive advantages may induce individuals to care for others with whom they share genes by common descent, and the amount of care, including self-sacrifice, will increase with the proportion of genes shared. Twins represent a natural situation in which this hypothesis can be tested. Twin pairs experience the same early environment because they were born and raised at the same time and in the same family but their genetic relatedness differs depending on zygosity. We (...) compared the degree of willingness to fight and sacrifice for the co-twin among monozygotic and dizygotic pairs in a sample of 1443 same-sex and opposite-sex twins. We also analyzed the effect of the subject’s gender and that of the co-twin on those altruistic behaviors. Results partly supported the postulated explanation. MZ twins were significantly more likely than DZ twins to self-sacrifice for their co-twins, but zygosity did not affect willingness to fight for him/her. The genders of the subject and of the co-twin, not genetic relatedness, were the best predictors of aggressive altruistic intentions. (shrink)

Experiential imagination consists in an imaginative projection that aims at simulating the experiences one would undergo in different circumstances. It has been traditionally thought to play a role in how we build our lives, engage with other agents, and appreciate art. Although some philosophers have recently expressed doubts over the capacity of experiential imagination to offer insight into the perspective of someone other than our present-selves, experiential imagination remains a much sought-after tool. This paper substantiates pessimism about the epistemological value (...) of these uses of experiential imagination by developing an embodied approach. Our thesis is that experiential imagination is _robustly embodied_ because the _sociohistorically situated_ body makes an irreducible contribution to the imaginative project, and that, as such, it is constrained by who we are as _concrete_ agents. We argue that experiential imagination is an embodied, virtual exploration of imagined scenarios that depends on our situated history of sensorimotor and affective interactions. We conclude that experiential imagination is much more limited than commonly acknowledged, as it can hardly be divorced from who we are and where we have been. (shrink)

Advocates of interactionism in the ethical criticism of art argue that ethical value impacts aesthetic value. The debate is concerned with “the intrinsic question”: the question of whether ethical flaws/merits in artworks’ manifested attitudes affect their aesthetic value (Gaut 2007: 9). This paper argues that the assumption that artworks have intrinsic ethical value is problematic at least in regards to a significant subset of works: fictional artworks. I argue that, insofar as their ethical value emerges only from attitudes attributable to (...) actual agents, fictional artworks only have extrinsic ethical value. I show that what is at stake for interactionism is whether ethical judgements concerning artists’ attitudes in a context, rather than manifested attitudes, are ever aesthetically relevant. I conclude that, without buying into extreme actual intentionalism, a still controversial theory of interpretation that ties artworks’ meaning to actual artists, interactionism fails to show that ethical flaws/merits are aesthetic flaws/merits. (shrink)

Advocates of the ethical criticism of art claim that works' ethical defects or merits have an impact on their aesthetic value. Against ethical critics, autonomists claim that moral criteria should not be part of the considerations when evaluating works of art as art. Autonomism refers to the view that an artwork's aesthetic value is independent from its ethical value. The purpose of this paper is to examine how autonomism has been defended in the contemporary discussion in analytic aesthetics. I present (...) three versions of autonomism: Richard Posner's radical autonomism, James C. Anderson and Jeffrey T. Dean, and James Harold's moderate autonomism, and Francisca Pérez Carreño's robust autonomism. I argue that robust autonomism offers a stronger argument against the ethical critic. However, I point to some difficulties for Pérez Carreño's account and conclude by suggesting how further work in autonomism might go around them. (shrink)

Aesthetic evaluations of human bodies have important implications for moral recognition and for individuals’ access to social and material goods. Unfortunately, there is a widespread aesthetic disregard for non-white bodies. Aesthetic evaluations depend on the aesthetic properties we regard objects as having. And it is widely agreed that aesthetic properties are directly accessed in our experience of aesthetic objects. How, then, might we explain aesthetic evaluations that systematically favour features associated with white identity? Critical race philosophers, like Alia Al-Saji, Mariana (...) Ortega, Paul C. Taylor, and George Yancy, argue that this is because the perception of racialized bodies is affected by the social structures in which they are appreciated. The aim of this paper is to propose how social structures can affect aesthetic perception. I argue that mental imagery acquired through the interaction with aesthetic phenomena structures the perception of non-aesthetic properties of bodies, so that aesthetic properties consistent with racist stereotypes are attributed to individuals. (shrink)

This article examines the role of the Spanish Atomic Forum as the representative of the nuclear sector in the public arena during the golden years of the nuclear power industry from the 1960s to 1970s. It focuses on the public image concerns of the Spanish nuclear lobby and the subsequent information campaigns launched during the late 1970s to counteract demonstrations by the growing and heterogeneous anti-nuclear movement. The role of advocacy of nuclear energy by the Atomic Forum was similar to (...) that in other countries, but the situation in Spain had some distinguishing features. Anti-nuclear protest in Spain peaked in 1978 paralleling the debates of a new National Energy Plan in Congress, whose first draft had envisaged a massive nuclearization of the country. We show how the approval of the Plan in July 1979, with a significant reduction in the nuclear energy component, was influenced by the anti-nuclear protest movements in Spain. Despite the efforts of the Spanish Atomic Forum to counter its message, the anti-nuclear movement was strengthened by reactions to the Three Mile Island accident in March 1979. (shrink)

This book seeks to arrive at a better understanding of the relationships between the objective and subjective aspects of time. It discusses the existence of fluent time, a controversial concept in many areas, from philosophy to physics. Fluent time is understood as directional time with a past, a present, and a future. We experience fluent time in our lives and we adopt a temporal perspective in our ways of knowing and acting. Nevertheless, the existence of fluent time has been debated (...) for both philosophical and scientific reasons, thus creating a rift between the subjective and objective aspects of time. Starting from the basic notion of points of view, or perspectives, this book explores the relationships between objective or external time, as it has been conceptualized by science, and subjective or internal time, which is involved in our lived experiences. It establishes a general framework encompassing the nature, structure and mode of existence of points of view, in which the objective and subjective aspects of time can be integrated. The book mainly addresses researchers and postgraduates in philosophy and logic. Additionally, it offers inspiration for physicists and computer scientists involved in the modeling and simulation of complex behaviors for which the representation of internal time should be considered together with the notion of objective, external time. (shrink)

Este artículo explora las consideraciones éticas que rodean el uso de la Inteligencia Artificial (IA) en la academia. Se establecen principios éticos generales para la IA en este ámbito, como la transparencia, la equidad, la responsabilidad, la privacidad y la integridad académica. En cuanto a la educación asistida por IA, se enfatiza la importancia de la accesibilidad, la no discriminación y la evaluación crítica de los resultados. Se recomienda que la IA se use para complementar y no para reemplazar la (...) enseñanza tradicional. En cuanto al ámbito de la investigación, se hace énfasis en la necesidad de garantizar la calidad y la veracidad de los datos utilizados, así como la transparencia en los métodos y resultados. Se deben considerar los posibles sesgos y riesgos de la IA en la investigación. El artículo concluye que la adopción responsable de la IA en la academia requiere una reflexión crítica sobre sus implicaciones éticas. Se recomienda la creación de marcos éticos específicos para cada contexto y la participación de diversos actores en la toma de decisiones. (shrink)

This article examines what constitutes an ethical flaw in artworks and asks which ethical flaws are relevant in determining works. ethical and aesthetic values. I argue that while most of the discussion has simply taken for granted that it is intrinsic ethical flaws that should be taken into account, there are further important differences in the type of intrinsic ethical flaws that artworks display. I identify two different types of ethical defects in artworks, fictional and actual, and argue that this (...) distinction has important consequences for debates surrounding the ethical value of works of fiction. (shrink)

Journal of Political Philosophy, EarlyView.

It has been pointed out that Sensorimotor Enactivism, a theory that claims that perception is enacted and brought about by movement, says very little about the neural mechanisms that enable perception. For the proponents of the predictive approach to Sensorimotor Enactivism, this is a challenge that can be met by introducing predictive processing into the picture. However, the compatibility between these theories is not straightforward. Firstly, because they seem to differ in their stand towards representations: while Sensorimotor Enactivism is said (...) to belong to the non-representational wing of cognitive science, predictive processing has a representational profile. And secondly, because they exhibit different explanatory strategies: while Sensorimotor Enactivism prioritizes the interactions of the embodied agent, predictive processing has internalist commitments. The aim of this paper is to address these concerns and show that a predictive approach to Sensorimotor Enactivism is viable. More specifically, I focus on the Free-Energy approach, a theory that falls within the ballpark of predictive processing. In this paper I argue for the following claims. I argue that both Sensorimotor Enactivism and the Free-Energy approach may be understood for some systems in representational terms. The non-representational reading of Sensorimotor Enactivism is not mandatory and neither is the representational reading of the Free-Energy approach. Sensorimotor Enactivism is, in this respect, compatible with both representational and non-representational interpretations of the FEA. So, the position towards representations of these frameworks should not stand in the way of a predictive approach to Sensorimotor Enactivism. I also show that the Free-Energy approach allows for an account that prioritizes the interaction of the embodied agent with the environment. This is the explanatory strategy followed by Sensorimotor Enactivism. To justify this strategy and following other proponents of Sensorimotor Enactivism, I argue that by referring to the interactions of the embodied agent a better account of the phenomena in question is provided. On this basis, I claim that Sensorimotor Enactivism and the Free-Energy approach are compatible in what concerns their explanatory strategy as well. Thus, making the case for the viability of the predictive approach to Sensorimotor Enactivism. (shrink)

RESUMENEn la obra del pensador gallego Francisco Sánchez (1551-1623), titulada Que nada se sabe, existen una serie de características que nos obligan a relacionarla directamente con el pensamiento judío. Entre estas cuestiones se hallan: las citas bíblicas recogidas por su autor, siendo la gran mayoría de ellas procedentes del Antiguo Testamento; la falta de la dedicatoria a la virgen María o la relación entre el alma y el cuerpo que recoge Sánchez y que es de claro origen judío.PALABRAS CLAVEESCEPTICISMO, PENSAMIENTO (...) JUDÍO, FRANCISCO SÁNCHEZABSTRACTIn the work of the thinker Francisco Sanchez (1551-1623), entitled That nothing is known, there are some characteristics that force us to directly relate it to the Jewish thought. Some of these questions are: the Biblical quotations gathered by its author, coming the great majority of them from the Old Testament; the lack of the dedication to Virgin Mary or the relation between the soul and the body that Sanchez shares with the Jewish tradition. All these topics point at the importance of this tradition in the work That nothing is known.KEYWORDSSCEPTICISM, JEWISH THOUGHT, FRANCISCO SANCHEZ, RENAISSANCE. (shrink)

ResumenEn el marco intelectual del Renacimiento hubo una serie de pensadores que se mostraron disconformes con el aristotelismo dominante. La variedad de sus posturas así como lo distinto de sus posicionamientos filosóficos ha podido actuar como obstáculo para poder ver las similitudes que, en torno a la crítica aristotélica, presentan. El caso de Juan Luis Vives y de Gianfrancesco Pico puede resultar paradigmático, a estos se suma con fuerza Francisco Sánchez, quien dedicó una parte importante de su obra Quod nihil (...) scitur a criticar a Aristóteles, aunque más aún a sus comentaristas.Palabras claveFilosofía del Renacimiento, Francisco Sánchez, Juan Luis Vives, Gianfrancesco Pico, aristotelismo, historia de la filosofía.AbstractIn the intellectual frame of the Renaissance, there were some thinkers who did not agree with the Aristotelism prevailing at the time. The variety of their philosophical positions and opinions may have been an obstacle for an approach to their similarities regarding the Aristotelian critic. The case of Juan Luis Vives and Gianfrancesco Pico della Mirandola can be paradigmatic. Also Francisco Sánchez, who strongly joined their position, devoted an important part of his play Quod nihil scitur to criticize Aristotle –although he focused on his commentators above all.KeywordsPhilosophy in the Renaissance, Francisco Sanchez, Juan Luis Vives, Gianfrancesco Pico, Aristotelism, History of Philosophy. (shrink)

Ciencias sociales : saberes coloniales y eurocéntricos / Edgardo Lander / - Europa modernidad y eurocentrismo / Enrique Dussel / - La colonialidad a lo largo y a lo ancho : el hemisferio occidental en el horizonte colonial de la modernidad / Walter D. Mignolo / - Naturaleza del poscolonialismo : del eurocentrismo al globocentrismo / Fernando Coronil / - El lugar de la naturaleza y la naturaleza del lugar : ¿globalización o postdesarrollo? / Arturo Escobar / - Ciencias sociales, (...) violencia epistémica y el problema de la invención del otro / Santiago Castro-Gómez / - Superar la exclusión, conquistar la equidad : reformas, políticas y capacidades en el ámbito social / Alejandro Moreno / - Abrir, impensar, y redimesionar las ciencias sociales en América Latina y el Caribe. ¿Es posible una ciencia social no eurocéntrica en nuestra región? / Francisco López Segrera / - Colonialidad del poder, eurocentrismo y América Latina / Aníbal Quijano. (shrink)

Quadruple Helix Collaborations (QHCs) is a cooperation model in which industry, government, academia, and the public interact to innovate. This paper analyses the impact of a training intervention to provide specific knowledge, skills, and attitudes to deal with barriers commonly found in the progress of QHCs. We designed, implemented, and evaluated three training programs in Austrian, Colombian, Danish, and Spanish institutions. We analysed trainees’ (n = 66) and trainers’ (n = 9) perceptions to identify the competencies acquired with the intervention (...) and the approach’s limitations. We used online questionnaires (35 trainees; 9 trainers), semi-structured interviews (10 trainees), and a focus group (6 trainers). Trainees answered positively regarding their self-perception about the impact of the course and highlighted the acquisition of inspiration for their practice (score 4.1 out of 5.0) and knowledge (3.7). In contrast, they perceived that a deeper interaction with other participants (2.7) was challenging. After the courses, 74% of respondents indicated that they know more about how QHCs work in practice, and 86% about collaboration or engagement methods. Moreover, participants plan to be more sensitive towards setting common goals (71%) and power imbalances (63%). Trainers’ perceptions align with those expressed by participants, except that they considered that the interaction amongst participants during the course was higher. Qualitative analysis of interviews with participants and the focus group with trainers provides more detail about the strengths and weaknesses of the intervention. Our study shows that the collaborative design and implementation of training impact the participant’s learning competencies, with potential implications in their medium- to long-term practice. (shrink)

In spite of the considerable development of research in the fields of business ethics and family business, a comprehensive review and integration of the area where both disciplines intersect has not been undertaken so far. This paper aims at contributing to the call for more research on family business ethics by answering the following research questions: What is the status of the current research at the intersection of business ethics and family business? Why and how do family firms differ from (...) non-family firms regarding business ethics? And, what are the key directions for further research? To answer these questions, this study combines a systematic approach for the selection of articles, resulting in a sample of 31 articles over 35 years, with a narrative review to analyze the literature. This paper finds that research on family business ethics is scarce but increasing and that family firms are considerably different from non-family firms regarding ethical issues. Particular stakeholders, goals, relationships, and practices are found to be the forces behind the peculiarity of family business ethics. Ultimately, research development on family business ethics is encouraged and future research directions flowing from the key findings and reflections of this review are provided. (shrink)

El presente artículo describe un proyecto de innovación educativa de aprendizaje de competencias, realizado en el Curso Propio de Liderazgo de la Universidad San Pablo CEU, transversal a toda su oferta educativa. Se trata de nuevo proyecto basa- do en una docencia híbrida, donde las masterclass más teóricas se han complemen- tado con un aprendizaje basado en retos vinculados a materias de comunicación y sostenibilidad, aplicando la metodología Design Sprint. De esta forma, se consigue formar al alumno en las llamadas (...) habilidades blandas, cada vez más demandadas por el entorno laboral. (shrink)

Advocates of interactionism in the ethical criticism of art argue that ethical value impacts aesthetic value. The debate is concerned with “the intrinsic question”: the question of whether ethical flaws/merits in artworks’ manifested attitudes affect their aesthetic value (Gaut 2007: 9). This paper argues that the assumption that artworks have intrinsic ethical value is problematic at least in regards to a significant subset of works: fictional artworks. I argue that, insofar as their ethical value emerges only from attitudes attributable to (...) actual agents, fictional artworks only have extrinsic ethical value. I show that what is at stake for interactionism is whether ethical judgements concerning artists’ attitudes in a context, rather than manifested attitudes, are ever aesthetically relevant. I conclude that, without buying into extreme actual intentionalism, a still controversial theory of interpretation that ties artworks’ meaning to actual artists, interactionism fails to show that ethical flaws/merits are aesthetic flaws/merits. (shrink)

Se realizó un estudio con el objetivo de ejemplificar los modos de actuación en el trabajo metodológico interdisciplinario que respondan a la formación académica, laboral e investigativa de los estudiantes de la carrera de Medicina de la Facultad de Ciencias Médicas de Camagüey, desde una concepción intra e interdisciplinaria, rectorada por la disciplina Informática Médica. Se elaboraron propuestas de tareas docentes problematizadoras desde una estrategia metodológica a partir de la planificación que cada asignatura del año debe diseñar, las que permitieron (...) la realización de trabajos investigativos por los estudiantes en cada semestre del curso escolar, en las que se combinaron de manera creciente los contenidos y los diversos métodos teóricos y prácticos de las unidades curriculares del plan de estudio de las asignaturas Informática Médica, Metodología de la Investigación, Educación Física, Psicología General y Medicina General Integral como disciplina rectora en la carrera, influyendo en la formación de un profesional más competente. Determining a mode of on-the-job acting interdisciplinary methodologic that the intra answer to Camagüey's academic, labor and investigating formation of the students of the carrier of Medicine of Ciencias Médicas's Faculty, from a conception and interdisciplinary, manager for Information-Technology Medical discipline, he identified the objective of this work. The problem from a strategy elaborated bidding of teaching tasks themselves methodologic as from the planning that he must design each subject of study of the year, the ones that permitted the realization of investigating works for students in each semester of the school year, in the ones that combined of increasing manner the contentses and various theoretic methods themselves and pilots of units curriculares of the curriculum of Information-Technology Medical subjects of study, Methodology of Investigation, Physical Education, Psicología General and Medicine General Integral like ruling discipline in the carrier influencing a more competent professional's formation. (shrink)

Como puede leerse en los Nouveaux essais, Leibniz se proclamaba a sí mismo como seguidor de Platón. Pensaba que, para poder apreciar la vigencia de los resultados a los que llegó Platón, la reminiscencia platónica debía interpretarse dejando aparte la teoría platónica de la preexistencia del alma. En este ensayo, se analizan los tres diálogos platónicos que tratan el tema de la reminiscencia, tomando como puntos de apoyo el innatismo leibniziano y la crítica leibniziana del innatismo platónico, con el fin (...) de extraer los resultados vigentes de la teoría innatista de Platón. Se exploran los mitos sobre la reminiscencia de Platón, la relación entre el conocimiento matemático y el innatismo, así como el papel que guardan los sentidos en la apercepción del conocimiento innato. (shrink)

Scholars in the humanities and social sciences have turned to ethics to theorize politics in what seems to be an increasingly depoliticized age. Yet the move toward ethics has obscured the ongoing value of political responsibility and the vibrant life it represents as an effective response to power. Sounding the alarm for those who care about robust forms of civic engagement, this book fights for a new conception of political responsibility that meets the challenges of today's democratic practice. Antonio Y. (...) Vázquez-Arroyo forcefully argues against the notion that modern predicaments of power can only be addressed ethically or philosophically through pristine concepts that operate outside of the political realm. By returning to the political, the individual is reintroduced to the binding principles of participatory democracy and the burdens of acting and thinking as a member of a collective. Vázquez-Arroyo historicizes the ethical turn to better understand its ascendence and reworks Adorno's dialectic of responsibility to reassert the political in contemporary thought and theory. (shrink)

Software vulnerabilities are the root cause for a multitude of security problems in computer systems. Owing to their efficiency and tight control over low-level system resources, the C and C++ programming languages are extensively used for a myriad of purposes, from implementing operating system kernels to user-space applications. However, insufficient or improper memory management frequently leads to invalid memory accesses, eventually resulting in memory corruption vulnerabilities. These vulnerabilities are used as a foothold for elaborated attacks that bypass existing defense methods. (...) In this paper, we summarise the main memory safety violation types (i.e. memory errors), and analyse how they are exploited by attackers and the main mitigation methods proposed in the research community. We further systematise the most relevant techniques with regards to memory corruption identification in current programs. (shrink)

This paper examines from a historical perspective Tarski's 1936 essay, "On the concept of logical consequence." I focus on two main aims. The primary aim is to show how Tarski's definition of logical consequence satisfies two desiderata he himself sets forth for it: (1) it must declare logically correct certain formalizations of the -rule and (2) it must allow for variation of the individual domain in the test for logical consequence. My arguments provide a refutation of some interpreters of Tarski, (...) and notably John Etchemendy, who have claimed that his definition does not satisfy those desiderata. A secondary aim of the paper is to offer some basic elements for an understanding of Tarski's definition in the historical logico-philosophical context in which it was proposed. Such historical understanding provides useful insights on Tarski's informal ideas on logical consequence and their internal cohesion. (shrink)

We provide a new interpretation of Zeno’s Paradox of Measure that begins by giving a substantive account, drawn from Aristotle’s text, of the fact that points lack magnitude. The main elements of this account are (1) the Axiom of Archimedes which states that there are no infinitesimal magnitudes, and (2) the principle that all assignments of magnitude, or lack thereof, must be grounded in the magnitude of line segments, the primary objects to which the notion of linear magnitude applies. Armed (...) with this account, we are ineluctably driven to introduce a highly constructive notion of (outer) measure based exclusively on the total magnitude of potentially infinite collections of line segments. The Paradox of Measure then consists in the proof that every finite or potentially infinite collection of points lacks magnitude with respect to this notion of measure. We observe that the Paradox of Measure, thus understood, troubled analysts into the 1880’s, despite their knowledge that the linear continuum is uncountable. The Paradox was ultimately resolved by Borel in his thesis of 1893, as a corollary to his celebrated result that every countable open cover of a closed line segment has a finite sub-cover, a result he later called the “First Fundamental Theorem of Measure Theory.” This achievement of Borel has not been sufficiently appreciated. We conclude with a metamathematical analysis of the resolution of the paradox made possible by recent results in reverse mathematics. (shrink)

Diseases of complex origin have a component of quantitative genetics that contributes to their susceptibility and phenotypic variability. However, after several studies, a major part of the genetic component of complex phenotypes has still not been found, a situation known as “missing heritability.” Although there have been many hypotheses put forward to explain the reasons for the missing heritability, its definitive causes remain unknown. Complex diseases are caused by multiple intermediate phenotypes involved in their pathogenesis and, very often, each one (...) of these intermediate phenotypes also has a component of quantitative inheritance. Here we propose that at least part of the missing heritability can be explained by the genetic component of intermediate phenotypes that is not detectable at the level of the main complex trait. At the same time, the identification of the genetic component of intermediate phenotypes provides an opportunity to identify part of the missing heritability of complex diseases. (shrink)

Background: The prevalence of anxiety and depression in young students is associated with biosocial factors and scholastic stress. However, few studies have evaluated emotional-affective symptoms that are related to the immune system and antioxidant parameters in young individuals without diagnoses of affective disorders.Aim: This study aims to assess the relationship between emotional-affective symptoms and glutathione concentrations and CD4 and CD8 lymphocyte counts in college students.Methods: College students completed standardized psychometric instruments, including the Perceived Stress Scale, Hamilton Anxiety Scale, Beck Depression (...) Inventory, Familiar Social and Friends Support Scale, and Rosenberg Scale. Blood samples were biochemically analyzed. Analyses of variance were conducted between four groups according to symptom severity.Results: A considerable prevalence of stress, anxiety, and depression symptoms was observed and negatively correlated with self-esteem and socio-familiar support. Perceived stress was sexually dimorphic. Although biochemical parameters were within reference ranges, glutathione, CD4, and CD8 tended to be lower in participants with anxiety and depression symptoms, which may be of predictive value.Conclusion: The relationship between antioxidant/immune parameters and socio-affective scores is latent in undiagnosed college students who might develop affective disorders. The findings suggest that during the initial development of affective disorders, stress management strategies should be implemented to help college students cope with the academic load and monitor negative changes in their physiological state. (shrink)