En el Ion se da una explicación de la inspiración poética adjudicándole las características propias de lo irracional. Pero a través de la problemática planteada en el Banquete, la poesía misma empieza a ser convertida en un medio por el cual el filósofo puede llegar al conocimiento de las verdades abstractas. Se establece entonces un enlace entre la inspiración y el concepto, dejándose clara la compatibilidad entre los deseos de los hombres de hablar de los dioses, y la necesidad de (...) un discurso conceptualmente consistente. Pero la filosofía, todavía más, es asimilada al nivel superior de la locura adoptando de este modo un carisma particular que Platón antes ha atribuido, con explícita necesidad de desacreditarles, a la poesía y al poeta. La locura abre en el Fedro unas importantes perspectivas con las cuales cerramos el cuadro que hemos trazado a nuestra discusión, el Banquete y el Fedro, presentan como fundamento del ascenso a las esencias, eternas, no la curiosidad meramente intelectual, sino el Eros, una locura atravesada por la pasión de naturaleza incuestionablemente divina. El decurso platónico nos lleva de tal modo a un completo dominio filosófico, en el que, sin embargo, poesía y filosofía, llegan a constituir una indisoluble unidad. (shrink)

Con base en Maneras trágicas de matar a una mujer, de Nicole Loraux, el presente artículo se propone la presentación de los modos tan disímiles como en una polis griega es pensada la muerte de un hombre y la de una mujer. Se busca mostrar con especial énfasis el modo como la muerte de la mujer es teatralizada en la tragedia griega, género literario considerado aquí como lugar en el que se desvanecen, aunque ambiguamente, las líneas fronterizas entre las dos (...) maneras de morir. De acuerdo con esto, se muestran algunos rasgos de la antropología política en los que la concepción griega antigua sustenta, según el sexo de quien haya de morir, los significados diversos acerca de la muerte en el campo de problemas examinados. Por tanto, no se pretende proponer ni realizar un estudio que sugiera líneas argumentativas a favor de una concepción de lo trágico, ni interpretativas acerca de la esencia de ese genial fruto artístico del espíritu griego. (shrink)

Resumen A pesar de que uno de los objetivos del planteamiento platónico en República acerca de la formación del carácter de los guardianes es la critica, la censura y el destierro de los poetas y de la poesía mimética como "recurso pedagógico" por su inutilidad como fuente de conocimiento, Platón admite la introducción de cierto tipo de poesía dentro de su programa educativo. No es, entonces, adecuado extender a todo el pensamiento platónico una tesis exclusiva del libro X, porque Platón (...) mismo reconoce una modalidad de mimesis que sobrevive a la censura.Despite the fact that one of the objectives of the platonic approach in Republic about guardians' character education is to criticize, censure, and exile the poets and the mimetic poetry as a "pedagogic resource" due to their uselessness as a source of knowledge. Plato admits the introduction of certain kind of poetry in his educational program. It is not then appropriate to apply a thesis that is exclusive of the X book to all platonic thought since Plato himself recognizes a modality of mimesis which survives to censure. (shrink)

Normal 0 21 false false false ES-CO X-NONE X-NONE El Eros en el Fedro es ético y filosófico, pero también Manía, irracionalidad. Su locura la procura el dios del que se está poseso en la procesión celeste de las almas, pero también la origina su fuerza pasional por desear la belleza presente en “este mundo”, y la nostalgia y deseo de la belleza que el alma gozó en su anterior vida inmortal y trascendente. Es Eros entonces quien empuja a Psyqué (...) a la readquisición de sus alas, cuando aparece ante ella la belleza terrenal del amado. Esto constituye un alto autocrítico de Platón en el Fedro , quien en otros diálogos sólo atribuía las emociones y los deseos al cuerpo. El Eros del Fedro , el mismo por cuya naturaleza el filósofo asciende hasta las sublimes Ideas, es también la causa del importante valor que ahora adquieren los sentimientos, las pasiones y el amor personal, introduciendo Platón, concomitantemente, una nueva concepción sobre la locura (erótica). (shrink)

El pensamiento filosófico, introducido a partir de la obra de los presocráticos, particularmente de Heráclito y Jenófanes, formula unas consideraciones sobre la creación poética, las cuales discrepan de la concepción de ella como fruto de la actividad inspiradora de la divinidad, y a partir de las cuales comienza a caracterizarse una disputa ( pálaia diáphora ) que muestra los caminos disímiles y opuestos por donde discurren el saber del poeta y el saber del filósofo. La filosofía afirma desde entonces una (...) nueva forma y un pensamiento distinto, en cuya esencia está el problema de la ciencia del saber, prescindiendo del poder inspirador de la divinidad. (shrink)

En el Ion se da una explicación de la inspiración poética adjudicándole las características propias de lo irracional. Pero a través de la problemática planteada en el Banquete, la poesía misma empieza a ser convertida en un medio por el cual el filósofo puede llegar al conocimiento de las verdades abstractas. Se establece entonces un enlace entre la inspiración y el concepto, dejándose clara la compatibilidad entre los deseos de los hombres de hablar de los dioses, y la necesidad de (...) un discurso conceptualmente consistente. Pero la filosofía, todavía más, es asimilada al nivel superior de la locura adoptando de este modo un carisma particular que Platón antes ha atribuido, con explícita necesidad de desacreditarles, a la poesía y al poeta. La locura abre en el Fedro unas importantes perspectivas con las cuales cerramos el cuadro que hemos trazado a nuestra discusión, el Banquete y el Fedro, presentan como fundamento del ascenso a las esencias, eternas, no la curiosidad meramente intelectual, sino el Eros, una locura atravesada por la pasión de naturaleza incuestionablemente divina. El decurso platónico nos lleva de tal modo a un completo dominio filosófico, en el que, sin embargo, poesía y filosofía, llegan a constituir una indisoluble unidad. (shrink)

La ‘explicación’ platónica de la creación poética en el Ion como efecto de la inspiración permite identificar las condiciones culturales que le subyacen: por carecer de escritura, la sabiduría griega, incluida la poética, es transmitida oralmente. La circunstancia en que realiza su actividad el poeta llevan a Platón a proponer entonces que esta no obedece a la téchne y, por tanto, el poeta no puede dar razón de lo que dice. Esta crítica alcanza a los sofistas en sus usos ‘pedagógicos’ (...) de la poesía, y cabe preguntarse si podría estar dirigida contra las concepciones sofísticas de la poesía como téchne. Sin embargo, sostener que está asimismo dirigida contra estas concepciones constituye un forzamiento de la doctrina platónica de la poesía, porque los planteamientos de la sofística surgen, desde Simónides de Ceos, dentro de circunstancias culturales en que las tesis platónicas pierden validez: la obra de los sofistas es producto de una época que dispone ya de escritura alfabética. (shrink)

We show how the Full Bayesian Significance Test (FBST) can be used as a model selection criterion. The FBST was presented by Pereira and Stern as a coherent Bayesian significance test. Key Words: Bayesian test; Evidence; Global optimization; Information; Model selection; Numerical integration; Posterior density; Precise hypothesis; Regularization. AMS: 62A15; 62F15; 62H15.

This article gives a conceptual review of the e-value, ev(H|X) – the epistemic value of hypothesis H given observations X. This statistical significance measure was developed in order to allow logically coherent and consistent tests of hypotheses, including sharp or precise hypotheses, via the Full Bayesian Significance Test (FBST). Arguments of analysis allow a full characterization of this statistical test by its logical or compositional properties, showing a mutual complementarity between results of mathematical statistics and the logical desiderata lying at (...) the foundations of this theory. (shrink)

Much forensic inference based upon DNA evidence is made assuming Hardy-Weinberg Equilibrium (HWE) for the genetic loci being used. Several statistical tests to detect and measure deviation from HWE have been devised, and their limitations become more obvious when testing for deviation within multiallelic DNA loci. The most popular methods-Chi-square and Likelihood-ratio tests-are based on asymptotic results and cannot guarantee a good performance in the presence of low frequency genotypes. Since the parameter space dimension increases at a quadratic rate on (...) the number of alleles, some authors suggest applying sequential methods, where the multiallelic case is reformulated as a sequence of “biallelic” tests. However, in this approach it is not obvious how to assess the general evidence of the original hypothesis; nor is it clear how to establish the significance level for its acceptance/rejection. In this work, we introduce a straightforward method for the multiallelic HWE test, which overcomes the aforementioned issues of sequential methods. The core theory for the proposed method is given by the Full Bayesian Significance Test (FBST), an intuitive Bayesian approach which does not assign positive probabilities to zero measure sets when testing sharp hypotheses. We compare FBST performance to Chi-square, Likelihood-ratio and Markov chain tests, in three numerical experiments. The results suggest that FBST is a robust and high performance method for the HWE test, even in the presence of several alleles and small sample sizes. (shrink)

The Full Bayesian Significance Test, FBST, is extensively reviewed. Its test statistic, a genuine Bayesian measure of evidence, is discussed in detail. Its behavior in some problems of statistical inference like testing for independence in contingency tables is discussed.

Este estudio analiza el artículo 146 del Código Orgánico Integral Penal (COIP) de Ecuador, esta trata sobre el homicidio culposo por práctica profesional equivocada. La mala praxis médica es un problema grave en el sistema de salud de Ecuador, y la interpretación inadecuada de este artículo ha generado confusión en los procesos legales relacionados. El objeto de la investigación es analizar la normativa del artículo 146 del COIP y las lagunas de interpretación jurídica para determinar la culpabilidad o inocencia de (...) los profesionales de la salud. Para ello, se emplearán métodos comparativos e históricos, que incluyen revisión bibliográfica, análisis de contenido del artículo 146. Los resultados esperados son demostrar las dudas razonables en la prueba del delito de mala praxis, resaltar la importancia de la bioética en los procedimientos legales. Este estudio busca contribuir a una mejor comprensión del marco legal y brindar ideas para la resolución de casos de mala praxis y homicidio culposo en Ecuador. (shrink)

t Intentional sampling methods are non-randomized procedures that select a group of individuals for a sample with the purpose of meeting specific prescribed criteria. In this paper we extend previous works related to intentional sampling, and address the problem of sequential allocation for clinical trials with few patients. Roughly speaking, patients are enrolled sequentially, according to the order in which they start the treatment at the clinic or hospital. The allocation problem consists in assigning each new patient to one, and (...) only one, of the alternative treatment arms. The main requisite is that the profiles in the alternative arms remain similar with respect to some relevant patients’ attributes (age, gender, disease, symptom severity and others). We perform numerical experiments based on a real case study and discuss how to conveniently set up perturbation parameters, in order to yield a suitable balance between optimality – the similarity among the relative frequencies of patients in the several categories for both arms, and decoupling – the absence of a tendency to allocate each pair of patients consistently to the same arm. (shrink)

Conditional independence tests have received special attention lately in machine learning and computational intelligence related literature as an important indicator of the relationship among the variables used by their models. In the field of probabilistic graphical models, which includes Bayesian network models, conditional independence tests are especially important for the task of learning the probabilistic graphical model structure from data. In this paper, we propose the full Bayesian significance test for tests of conditional independence for discrete datasets. The full Bayesian (...) significance test is a powerful Bayesian test for precise hypothesis, as an alternative to the frequentist’s significance tests (characterized by the calculation of the p-value). (shrink)

Intentional sampling methods are non-probabilistic procedures that select a group of individuals for a sample with the purpose of meeting specific prescribed criteria. Intentional sampling methods are intended for exploratory research or pilot studies where tight budget constraints preclude the use of traditional randomized representative sampling. The possibility of subsequently generalize statistically from such deterministic samples to the general population has been the issue of long standing arguments and debates. Nevertheless, the intentional sampling techniques developed in this paper explore pragmatic (...) strategies for overcoming some of the real or perceived shortcomings and limitations of intentional sampling in practical applications. (shrink)

A Bayesian measure of evidence for precise hypotheses is presented. The intention is to give a Bayesian alternative to significance tests or, equivalently, to p-values. In fact, a set is defined in the parameter space and the posterior probability, its credibility, is evaluated. This set is the “Highest Posterior Density Region” that is “tangent” to the set that defines the null hypothesis. Our measure of evidence is the complement of the credibility of the “tangent” region.

Clearing algorithms are at the core of modern payment systems, facilitating the settling of multilateral credit messages with (near) minimum transfers of currency. Traditional clearing procedures use batch processing based on MILP - mixed-integer linear programming algorithms. The MILP approach demands intensive computational resources; moreover, it is also vulnerable to operational risks generated by possible defaults during the inter-batch period. This paper presents TORC3 - the Token-Ring Clearing Algorithm for Currency Circulation. In contrast to the MILP approach, TORC3 is a (...) real time heuristic procedure, demanding modest computational resources, and able to completely shield the clearing operation against the participating agents’ risk of default. (shrink)

The Full Bayesian Significance Test (FBST) for precise hypotheses is presented, with some applications relevant to reliability theory. The FBST is an alternative to significance tests or, equivalently, to p-ualue.s. In the FBST we compute the evidence of the precise hypothesis. This evidence is the probability of the complement of a credible set "tangent" to the sub-manifold (of the para,rreter space) that defines the null hypothesis. We use the FBST in an application requiring a quality control of used components, based (...) on remaining life statistics. (shrink)

in Oct-14-1998 ordinance INDESP-IO4 established the federal software certification and verification requirements for gaming machines in Brazil. The authors present the rationale behind these criteria, whose basic principles can find applications in several other software authentication applications.

This article presents a two level hierarchical forecasting model developed in a consulting project for a Brazilian magazine publishing company. The first level uses a VARMA model and considers econometric variables. The second level takes into account qualitative aspects of each publication issue, and is based on polynomial networks generated by Genetic Programming (GP).

The unit root problem plays a central role in empirical applications in the time series econometric literature. However, significance tests developed under the frequentist tradition present various conceptual problems that jeopardize the power of these tests, especially for small samples. Bayesian alternatives, although having interesting interpretations and being precisely defined, experience problems due to the fact that that the hypothesis of interest in this case is sharp or precise. The Bayesian significance test used in this article, for the unit root (...) hypothesis, is based solely on the posterior density function, without the need of imposing positive probabilities to sets of zero Lebesgue measure. Furthermore, it is conducted under strict observance of the likelihood principle. It was designed mainly for testing sharp null hypotheses and it is called FBST for Full Bayesian Significance Test. (shrink)

The data analyzed in this paper are part of the results described in Bueno et al. (2000). Three cytogenetics endpoints were analyzed in three populations of a species of wild rodent – Akodon montensis – living in an industrial, an agricultural, and a preservation area at the Itajaí Valley, State of Santa Catarina, Brazil. The polychromatic/normochromatic ratio, the mitotic index, and the frequency of micronucleated polychromatic erythrocites were used in an attempt to establish a genotoxic profile of each area. It (...) was assumed that the three populations were in the same conditions with respect to the influence of confounding factors such as animal age, health, nutrition status, presence of pathogens, and intra- and inter-populational genetic variability. Therefore, any differences found in the endpoints analyzed could be attributed to the external agents present in each area. The statistical models used in this paper are mixtures of negative-binomials and Poisson variables. The Poisson variables are used as approximations of binomials for rare events. The mixing distributions are beta densities. The statistical analyzes are under the bayesian perspective, as opposed to the frequentist ones often considered in the literature, as for instance in Bueno et al. (2000). (shrink)

To estimate causal relationships, time series econometricians must be aware of spurious correlation, a problem first mentioned by Yule (1926). To deal with this problem, one can work either with differenced series or multivariate models: VAR (VEC or VECM) models. These models usually include at least one cointegration relation. Although the Bayesian literature on VAR/VEC is quite advanced, Bauwens et al. (1999) highlighted that “the topic of selecting the cointegrating rank has not yet given very useful and convincing results”. The (...) present article applies the Full Bayesian Significance Test (FBST), especially designed to deal with sharp hypotheses, to cointegration rank selection tests in VECM time series models. It shows the FBST implementation using both simulated and available (in the literature) data sets. As illustration, standard non informative priors are used. (shrink)

We present a module based criterion, i.e. a sufficient condition based on the absolute value of the matrix coefficients, for the convergence of Gauss–Seidel method (GSM) for a square system of linear algebraic equations, the Generalized Line Criterion (GLC). We prove GLC to be the “most general” module based criterion and derive, as GLC corollaries, some previously know and also some new criteria for GSM convergence. Although far more general than the previously known results, the proof of GLC is simpler. (...) The results used here are related to recent research in stability of dynamical systems and control of manufacturing systems. (shrink)

Gene clustering is a useful exploratory technique to group together genes with similar expression levels under distinct cell cycle phases or distinct conditions. It helps the biologist to identify potentially meaningful relationships between genes. In this study, we propose a clustering method based on multivariate normal mixture models, where the number of clusters is predicted via sequential hypothesis tests: at each step, the method considers a mixture model of m components (m = 2 in the first step) and tests if (...) in fact it should be m - 1. If the hypothesis is rejected, m is increased and a new test is carried out. The method continues (increasing m) until the hypothesis is accepted. The theoretical core of the method is the full Bayesian significance test, an intuitive Bayesian approach, which needs no model complexity penalization nor positive probabilities for sharp hypotheses. Numerical experiments were based on a cDNA microarray dataset consisting of expression levels of 205 genes belonging to four functional categories, for 10 distinct strains of Saccharomyces cerevisiae. To analyze the method’s sensitivity to data dimension, we performed principal components analysis on the original dataset and predicted the number of classes using 2 to 10 principal components. Compared to Mclust (model-based clustering), our method shows more consistent results. (shrink)

We describe a software system for the analysis of defined benefit actuarial plans. The system uses a recursive formulation of the actuarial stochastic processes to implement precise and efficient computations of individual and group cash flows.

Statistical tests that detect and measure deviation from the Hardy-Weinberg equilibrium (HWE) have been devised but are limited when testing for deviation at multiallelic DNA loci is attempted. Here we present the full Bayesian significance test (FBST) for the HWE. This test depends neither on asymptotic results nor on the number of possible alleles for the particular locus being evaluated. The FBST is based on the computation of an evidence index in favor of the HWE hypothesis. A great deal of (...) forensic inference based on DNA evidence assumes that the HWE is valid for the genetic loci being used. We applied the FBST to genotypes obtained at several multiallelic short tandem repeat loci during routine parentage testing; the locus Penta E exemplifies those clearly in HWE while others such as D10S1214 and D19S253 do not appear to show this. (shrink)

This article describes the Full Bayesian Significance Test for the problem of separate hypotheses. Numerical experiments are performed for the Gompertz vs. Weibull life span test.

This article presents important properties of standard discrete distributions and its conjugate densities. The Bernoulli and Poisson processes are described as generators of such discrete models. A characterization of distributions by mixtures is also introduced. This article adopts a novel singular notation and representation. Singular representations are unusual in statistical texts. Nevertheless, the singular notation makes it simpler to extend and generalize theoretical results and greatly facilitates numerical and computational implementation.

Abstract: The Pull Bayesian Significance Test (FBST) for precise hy- potheses is applied to a Multivariate Normal Structure (MNS) model. In the FBST we compute the evidence against the precise hypothesis. This evi- dence is the probability of the Highest Relative Surprise Set (HRSS) tangent to the sub-manifold (of the parameter space) that defines the null hypothesis. The MNS model we present appears when testing equivalence conditions for genetic expression measurements, using micro-array technology.

Mozambique has seen remarkable growth in biomedical research over the last decade. To meet a growing need, the National Committee for Bioethics in Health of Mozambique encouraged the development of ethical review processes at institutions that regularly conduct medical and social science research. In 2012, the Faculty of Medicine of University Eduardo Mondlane and the Maputo Central Hospital established a joint Institutional Committee on Bioethics for Health. This study examines the experience of the first 4 years of the CIBS FM (...) & MCH. This study provides a descriptive, retrospective analysis of research protocols submitted to and approved by the CIBS FM & MCH between March 1, 2013 and December 31, 2016, together with an analysis of the Committee’s respective reviews and actions. A total of 356 protocols were submitted for review during the period under analysis, with 309 protocols approved. Sixty-four percent were submitted by students, faculty, and researchers from UEM, mainly related to Master’s degree research. Descriptive cross-sectional studies were the most frequently reviewed research. The majority were prospective and used quantitative methodologies. The Departments of Internal Medicine at MCH and Community Health at the FM submitted the most protocols from their respective institutions, with 38 and 53% respectively. The CIBS’s average time to final approval for all protocols was 56 days, rising to 161 for the 40 protocols that required subsequent national-level review by the CNBS. Our results show that over its first 4 years, the CIBS FM & MCH has been successful in managing a constant demand for protocol review and that several broad quality improvement initiatives, such as investigator mentoring and an electronic protocol submission platform have improved efficiency in the review process and the overall quality of the protocols submitted. Beyond Maputo, long-term investments in training and ethical capacity building for CIBS across the country continue to be needed, as Mozambique develops greater capacity for research and makes progress toward improving the health of all its citizens. (shrink)