El debate que se gestó alrededor del concepto de existencia en manos de Willard Van Orman Quine y Rudolf Carnap, dio al siglo XX un cúmulo de aportes significativos a la ontología. La postura realista, con algunas variantes, de Quine y el criterio anti-realista de Carnap, otorga insumos para pensar de mejor forma cómo se intenta dar descripciones acerca del inmobiliario del mundo. Conocer este debate es importante, ya que, se expone los alcances y limitaciones que implican las explicaciones ontológicas (...) acerca de la realidad que deben ser tenidas en cuenta en la actualidad. Este trabajo cumple esa función, la de explicar sintéticamente uno de los debates más importantes para la ontología. (shrink)

Como casi todos los conceptos fi losófi cos, el de «validez normativa» tiene altos grados de ambigüedad y de vaguedad. En este trabajo me encargo de analizar la postura de distintos autores que han tratado de dar respuesta a la pregunta ¿qué significa que una norma sea «válida»? Para ello, tomo como hilo conductor la obra de Ernesto Garzón Valdés. Esto se debe a que los trabajos de Ernesto Garzón dedicados a este tema, le ofrecen al lector un análisis crítico (...) y comprensivo de algunas de las posturas teóricas más relevantes sobre el concepto de validez normativa. Asimismo, trabajar a través de su obra tiene un doble benefi cio: por un lado, no sólo nos permite conocer a fondo la postura teórica de autores que pertenecen a distintas corrientes del pensamiento, como Hans Kelsen, H.L.A. Hart, Francisco Suárez o von Wright por ejemplo, sino que, por el otro, nos permite conocer la postura del mismo Garzón y sus críticas a los diferentes modelos conceptuales. (shrink)

In this paper we argue that the best way to explain the normative framework of science is to adopt a model inspired in the democratic characterization of a public sphere. This model assumes and develops some deliberative democratic principles about the inclusiveness of the concerned, the parity of the reasons and the general interest of the subjects. In contrast to both bargaining models and to power-inspired models of the scientific activities, the model of scientific public sphere proposes to account for (...) the self-legislative capacity of science, the public nature of the scientific results and the epistemic virtues of scientific research in terms of the deliberative process carried out by individuals who are engaging in the public use of reason. This perspective provides new insights into the normative conditions of a democratic science. (shrink)

The knowledge extraction from data with noise or outliers is a complex problem in the data mining area. Normally, it is not easy to eliminate those problematic instances. To obtain information from this type of data, robust classifiers are the best option to use. One of them is the application of bagging scheme on weak single classifiers. The Credal C4.5 model is a new classification tree procedure based on the classical C4.5 algorithm and imprecise probabilities. It represents a type of (...) the so-calledcredal trees. It has been proven that CC4.5 is more robust to noise than C4.5 method and even than other previous credal tree models. In this paper, the performance of the CC4.5 model in bagging schemes on noisy domains is shown. An experimental study on data sets with added noise is carried out in order to compare results where bagging schemes are applied on credal trees and C4.5 procedure. As a benchmark point, the known Random Forest classification method is also used. It will be shown that the bagging ensemble using pruned credal trees outperforms the successful bagging C4.5 and RF when data sets with medium-to-high noise level are classified. (shrink)

The aim of this text is to examine the issue of truth telling in doctor-patient relationships, namely in the case of terminal patients. We analyze the problems and attitudes regarding truth telling that there are present when patients suffer from mortal diseases. We conclude that it is very important to keep a fluent and truthful communication in the doctor-patient relationship. We also examine and stress the role that general practitioners can play in the care of terminal patients at their home (...) and with their friends and/or relatives. (shrink)

Automatic control of physiological variables is one of the most active areas in biomedical engineering. This paper is centered in the prediction of the analgesic variables evolution in patients undergoing surgery. The proposal is based on the use of hybrid intelligent modelling methods. The study considers the Analgesia Nociception Index to assess the pain in the patient and remifentanil as intravenous analgesic. The model proposed is able to make a one-step-ahead prediction of the remifentanil dose corresponding to the current state (...) of the patient. The input information is the previous remifentanil dose, the ANI variable and the electromyogram signal. Modelling techniques used are Artificial Neural Networks and Support Vector machines for Regression combined with clustering methods. Both training and validation were done with a real dataset from different patients. Results obtained show the potential of this methodology to calculate the drug dose corresponding to a given analgesic state of the patient. (shrink)

La inferencia ecológica intenta estimar la conducta individual desde datos agregados. En este artículo, la nueva metodología de King para tratar con la inferencia ecológica se aplicará para estimar la proporción de obreros que votaron por Perón en 1946. Se usarán los datos del censo nac..

The strategy of jihadist groups is based on objectives that are sometimes global. Specifically, many of these groups argue that Muslims, wherever they live, should fight for the establishment of an Islamic state or, at least, for such a state to be possible elsewhere. Therefore, taking advantage of the emergence of the Internet, they initiated an equally universal narrative strategy, with the production of a great deal of content, especially audiovisual texts. The effects of this material are known and, unfortunately, (...) may be behind the terrorist actions of various individuals in many countries. Hence the concern of academics lies with their analyses and with the development of methodologies that can successfully deal with large amounts of multimodal information. The present research, therefore, aims to apply a quantitative procedure to the analysis of jihadist propaganda. Specifically, the authors have analysed 2,211 videos belonging to different terrorist groups, by applying an image classification algorithm. The results show that this type of approach has realistic possibilities of providing relevant information about this corpus – when realized, they may help to create automated analytical tools capable of dealing with the enormous amount of information that can be disseminated on-line. (shrink)

Throughout the biological and biomedical sciences there is a growing need for, prescriptive ‘minimum information’ (MI) checklists specifying the key information to include when reporting experimental results are beginning to find favor with experimentalists, analysts, publishers and funders alike. Such checklists aim to ensure that methods, data, analyses and results are described to a level sufficient to support the unambiguous interpretation, sophisticated search, reanalysis and experimental corroboration and reuse of data sets, facilitating the extraction of maximum value from data sets (...) them. However, such ‘minimum information’ MI checklists are usually developed independently by groups working within representatives of particular biologically- or technologically-delineated domains. Consequently, an overview of the full range of checklists can be difficult to establish without intensive searching, and even tracking thetheir individual evolution of single checklists may be a non-trivial exercise. Checklists are also inevitably partially redundant when measured one against another, and where they overlap is far from straightforward. Furthermore, conflicts in scope and arbitrary decisions on wording and sub-structuring make integration difficult. This presents inhibit their use in combination. Overall, these issues present significant difficulties for the users of checklists, especially those in areas such as systems biology, who routinely combine information from multiple biological domains and technology platforms. To address all of the above, we present MIBBI (Minimum Information for Biological and Biomedical Investigations); a web-based communal resource for such checklists, designed to act as a ‘one-stop shop’ for those exploring the range of extant checklist projects, and to foster collaborative, integrative development and ultimately promote gradual integration of checklists. (shrink)

Analizar epistemológicamente los problemas de salud requiere incorporar la epistemología a los programas de posgrado en ciencias de la salud. Con el propósito de caracterizar los campos problemáticos que fundamenten el diseño de un programa académico para el curso de epistemología en ciencias de la salud se realizó un estudio con el enfoque de la hermenéutica gadameriana en tres etapas. El punto de partida expone la concepción de hombre, conocimiento y epistemología. El horizonte de comprensión se elaboró con tendencias epistemológicas (...) hegemónicas. La fusión de horizontes integró las características de los siguientes campos problemáticos: epistemología de las ciencias de la salud, lógica de las ciencias de la salud, tendencias epistemológicas en ciencias de la salud, problemas epistemológicos de las ciencias de la salud. Se concluye que los campos problemáticos descritos introducen al estudiante a la reflexión de su práctica científica mediante el análisis racional, axiológico y crítico. Analyzing health problems from an epistemological point of view requires epistemology to be included on health sciences postgraduate courses programs. Aimed at characterizing the problematic fields used as basis for the design of a health sciences epistemology academic program, a study with an approach to Gadamer hermeneutics in three stages was carried out. The starting point shows man, knowledge and epistemology conceptions. The comprehension horizon was made with epistemological-dominant trends. The horizons merge included characteristics from the following problematic fields: health sciences epistemology, health sciences logic, epistemological trends in health sciences, health sciences epistemological problems. It was reached the conclusion that the described problematic fields introduce students to their scientific practice reflection through a rational, axiological and critical analysis. (shrink)

Los autores de esta obra dedicada a la compilación y comentario de las concepciones de la guerra existentes en nuestra historia de la filosofía son conscientes de que ninguna filosofía podría dar una definición de qué sea la guerra, cuáles sean sus causas, sus justificaciones o bajo qué concepción de la naturaleza humana cabe explicar este fenómeno o cuál sea el papel jugado por los Estados sin que, para ello, ponga la filosofía en juego todas las dimensiones que la componen: (...) desde la política, la metafísica, la ética, el derecho, etc. presentes en su devenir histórico. Esto es lo mismo que decir que la filosofía sólo puede dar una respuesta compleja y plural a la pregunta acerca de qué sea la guerra y de cómo llega a producirse ésta. Complejidad y pluralidad que hacen aconsejable un seguimiento histórico de las concepciones mismas de la guerra, y aunque no esté en boga hacer uso de este tipo de seguimientos que examinan, implícitamente, a la filosofía en su historia misma, qué duda cabe, por otra parte –y vaya ello en defensa de esta inteligente compilación–, de que también estamos hoy día recuperados de esa visión peyorativa de la historia, precisamente porque la pluralidad y complejidad de los planteamientos o concepciones de este fenómeno han de ser estudiados en el conjunto de la historia o historias: un futuro pasado, como diría Reinhart Koselleck, a cuyo examen estamos todos convocados. (shrink)

More than 200 million children under the age of 5 years are affected by malnutrition worldwide according to the World Health Organization. The Barbados Nutrition Study is a 55-year longitudinal study on a Barbadian cohort with histories of moderate to severe protein-energy malnutrition limited to the first year of life and a healthy comparison group. Using quantitative electroencephalography, differences in brain function during childhood have previously been highlighted between participants who suffered from early PEM and controls. In order to determine (...) whether similar differences persisted into adulthood, our current study used recordings obtained during a Go-No-Go task in a subsample of the original BNS cohort [population size = 53] at ages 45–51 years. We found that previously malnourished adults [sample size = 24] had a higher rate of omission errors on the task relative to controls. Evoked-Related Potentials were significantly different in participants with histories of early PEM, who presented with lower N2 amplitudes. These findings are typically associated with impaired conflict monitoring and/or attention deficits and may therefore be linked to the attentional and executive function deficits that have been previously reported in this cohort in childhood and again in middle adulthood. (shrink)

In this paper I will defend the incapacity of the informational frameworks in thermal physics, mainly those that historically and conceptually derive from the work of Brillouin (1962) and Jaynes (1957a), to robustly explain the approach of certain gaseous systems to their state of thermal equilibrium from the dynamics of their molecular components. I will further argue that, since their various interpretative, conceptual and technical-formal resources (e.g. epistemic interpretations of probabilities and entropy measures, identification of thermal entropy as Shannon information, (...) and so on) are shown to be somehow incoherent, inconsistent or inaccurate, these informational proposals need to 'epistemically parasitize' the manifold of theoretical resources of Boltzmann's and Gibbs' statistical mechanics, respectively, in order to properly account for the equilibration process of an ideal gas from its microscopic properties. Finally, our conclusion leads us to adopt a sort of constructive skepticism regarding the explanatory value of the main informationalist trends in statistical thermophysics. (shrink)

Aristotle's conception and use of ta endoxa are key points to our understanding of Aristotelian dialectic. But, nowadays, they are not of historical or hermeneutic importance alone, as, in Aristotle's treatment of endoxa, we still see a relevant contribution to the modern study of argumentation. I propose here an interpretation of endoxa to that effect: namely, as plausible propositions. This version is not only defensible in the Aristotelian context, it may also shed new light on some of his assumptions and (...) methodological shortcomings – e.g. concerning the 'plausible/implausible' pair –; finally, it will even enable us to show certain basic hints and guidelines, advanced by Aristotle's study of endoxa, which still serve nowadays to orientate our studies of argumentation from the angle of a theory of plausible argument currently under construction. These hints and guidelines suggest a pragmatic, gradual and comparative discursive concept of plausibility, and point, in particular, towards the reasonable dealing with, and weighing up of, differences of opinion within this frame of reference. (shrink)

“The First Person” is the paper where G. E. M. Anscombe supports the thesis that “I” is not a referring word. Mainly I deal with her argument against the indexical view of “I” from the scenario of the “A” user, who refers to himself as the person who is under the special observation of the “A” user. On the one hand, I put forward that a use of “A” might have a guaranteed reference in a semantic sense: a referential use (...) of “A” as a definite description guarantees the one reference to oneself. On the other hand, the indexical view is left untouched: the reference of “A” is not fixed by the self-reference rule, and thus “I” and “A” are not indistinguishable referring words. Also I explore the idea that unlike “A”, “I” has a guaranteed reference in an epistemic sense, being immune to error through misidentification. (shrink)

Consider two similarity facts: a is similar to b with respect to G, and c is similar to d with respect to G. According to the Platonist approach to similarity, the analysis of such facts forces us to admit that similarity facts are to be analyzed into facts about universal similarities of the form: a is similar to b with respect to G, and c is similar to d with respect to G, where similarity is a universal. In this paper, (...) I defend Neutralism, a view according to which there are properties and similarities, but these are not universals, particulars, or of other categories. After presenting the Platonist analysis of similarity proposed by Russell and Grossmann, I examine the question of whether or not the Platonist analysis of similarity leads us inevitably to a conception of similarity as a universal. Then I offer a novel, alternative analysis of similarity free of commitment to universals. (shrink)