Search results for "paradox"
showing 10 items of 164 documents
Estimating brain connectivity when few data points are available: Perspectives and limitations
2017
Methods based on the use of multivariate autoregressive modeling (MVAR) have proved to be an accurate and flexible tool for the estimation of brain functional connectivity. The multivariate approach, however, implies the use of a model whose complexity (in terms of number of parameters) increases quadratically with the number of signals included in the problem. This can often lead to an underdetermined problem and to the condition of multicollinearity. The aim of this paper is to introduce and test an approach based on Ridge Regression combined with a modified version of the statistics usually adopted for these methods, to broaden the estimation of brain connectivity to those conditions in …
2015
High-throughput detection of protein interactions has had a major impact in our understanding of the intricate molecular machinery underlying the living cell, and has permitted the construction of very large protein interactomes. The protein networks that are currently available are incomplete and a significant percentage of their interactions are false positives. Fortunately, the structural properties observed in good quality social or technological networks are also present in biological systems. This has encouraged the development of tools, to improve the reliability of protein networks and predict new interactions based merely on the topological characteristics of their components. Sinc…
ParadoxidesbrachyrhachisLinnarsson, 1883 versusParadoxidesmediterraneusPompeckj, 1901: a problematic determination
2010
A revision of paradoxidid trilobites reveals that previous identifications of specimens from Sardinia and Spain as the Nordic trilobite species Paradoxides brachyrhachis Linnarsson, 1883, are mistaken. The southern species, occurring also in France, is here referred to Eccaparadoxides mediterraneus (Pompeckj, 1901). Main differences are seen in the preocular field, pleural furrow and pygidium. The species P. brachyrhachis is referred with question to the genus Mawddachites Fletcher 2007.
Collapsibility and collapsing multidimensional contingency tables.
2000
Promoção da saúde: O renascimento de uma ideologia
2004
A concepção actual de promoção de saúde, educação para a saúde e prevenção da doença é suportada por ideologias algo adulteradas pela realidade social. Tendo em conta a proliferação epistemológica destes conceitos no final do século XX pretende-se, no presente artigo, elaborar uma reflexão crítica em torno das múltiplas racionalidades estratégicas em que os conceitos se organizam, bem como, abordar os paradoxos que se instalam ao nível dos determinantes biopsicossociais dos comportamentos salutogénicos. Partilhando responsabilidades, os profissionais de saúde, devem, colectiva e proactivamente, desempenhar um papel significativo como promotores de saúde, modelando e reforçando o significado…
La influencia de Pierre Bayle en la construcción de la segunda antinomia de la razón pura
2020
This paper aims to establish precisely the scope of Pierre Bayle’s influence on the construction of Kant’s second antinomy of pure reason, since there is a remarkable parallelism between this second cosmological conflict and the argument against extension of the article “Zeno of Elea” of Bayle’s Dictionary. It is argued that Bayle, employing the skeptical method in metaphysical research, has a major influence on the construction of the main arguments of the second antinomy and sets a precedent for its logical solution.
Growth in a time of external imbalances
2019
Abstract Globalization and financial integration have increased in the last three decades giving rise to cumulated large external imbalances. The question we address in this paper is whether economic growth can be affected by these external imbalances. We estimate an augmented growth equation with the external stock position of the countries measured by the net foreign asset position. Unlike previous literature, we use non-parametric methods that capture non-linearities and heterogeneity, and apply them to a sample that includes 106 developed and developing countries for the period 1983-2011. Contrary to the neoclassical theory, we find that improvements in the external position foster grow…
Bioactive Polyphenols from Grapes and Wine Emphasized with Resveratrol
2013
Grape polyphenols are abundant. They play essential roles in the plant's life, particularly in defence mechanisms. Moreover, the grape, fresh or dried, is a widely consumed fruit by humans, as are its by-products, grape juice and wine. They also contain vast and highly varied quantities of polyphenols. Like other phytophenols, grape and wine resveratrol is considered a protective micronutrient. Resveratrol is a well known antioxidant, for example, a protector of low-density lipoproteins against oxidation. Its applications are therefore highly varied. Research supports the idea that wine consumed regularly, without excess, is a natural biological product possesses preventive properties, and …
From Carneades to Cicero
2015
This chapter is about how Stoic epistemology developed in the two centuries after Chrysippus’ death. I first show that, as a result of Carneades’ critique in the mid-second century, there was a shift of emphasis in the epistemological debate between the Stoa and the Academy. From then on the task was not to explain what causal features a cognitive thought has, but to describe what phenomenological features it has. I show that the later Stoics responded to this challenge in two different ways. Some changed Chrysippus’ theory quite radically. They held that a cognitive thought is characterized by giving rise to a sense of conviction, denied that preconceptions count as cognitive thoughts, and…
Eliminating self-reference from Grelling's and Zwicker's paradoxes
2014
El objetivo de este artículo es ofrecer versiones de las paradojas de Grelling (sobre el predicado"heterológico") y de Zwicker (sobre el hiperjuego) inspiradas en la paradoja de Yablo. Nuestras versiones de estas paradojas no parecen involucrar ni autorreferencia ni circularidad viciosa. The goal of this paper is to present Yabloesque versions of Grelling¿s and Zwicker¿s paradoxes concerning the notions of ¿heterological¿ and ¿hypergame¿ respectively. We will offer counterparts of these paradoxes that do not seem to involve self-reference or vicious circularity.