A editora Losada publicou uma série de conferências de Karl Jaspers pronunciadas na Universidad de laBasilea a convite da Fundação Acadêmica livre e da Faculdade de História da Filosofia daquela Instituição. Esse conjunto de conferências importantes para entender como o filósofo pensava o significado da Filosofia foi reunido em livro com o título de La fe filosófica. O livro integra a coleção da editora argentina denominada Obras Maestras delPensamiento e ainda não teve edição em português. Portanto, La fe filosófica não (...) foi inicialmente concebida como livro, mas como reflexões sobre aspectos fundamentais da Filosofia e mais tarde reunidas numa obra. (shrink)

In this paper, we intend to discuss if and in what sense semiosis (meaning process, cf. C. S. Peirce) can be regarded as an "emergent" process in semiotic systems. It is not our problem here to answer when or how semiosis emerged in nature. As a prerequisite for the very formulation of these problems, we are rather interested in discussing the conditions which should be fulfilled for semiosis to be characterized as an emergent process. The first step in this work (...) is to summarize a systematic analysis of the variety of emergence theories and concepts, elaborated by Achim Stephan. Along the summary of this analysis, we pose fundamental questions that have to be answered in order to ascribe a precise meaning to the term "emergence" in the context of an understanding of semiosis. After discussing a model for explaining emergence based on Salthe's hierarchical structuralism, which considers three levels at a time in a semiotic system, we present some tentative answers to those questions. (shrink)

An examination of the post-Darwinian history of biological taxonomy reveals an implicit assumption that the definitions of taxon names consist of lists of organismal traits. That assumption represents a failure to grant the concept of evolution a central role in taxonomy, and it causes conflicts between traditional methods of defining taxon names and evolutionary concepts of taxa. Phylogenetic definitions of taxon names (de Queiroz and Gauthier 1990) grant the concept of common ancestry a central role in the definitions of (...) taxon names and thus constitute an important step in the development of phylogenetic taxonomy. By treating phylogenetic relationships rather than organismal traits as necessary and sufficient properties, phylogenetic definitions remove conflicts between the definitions of taxon names and evolutionary concepts of taxa. The general method of definition represented by phylogenetic definitions of clade names can be applied to the names of other kinds of composite wholes, including populations and biological species. That the names of individuals (composite wholes) can be defined in terms of necessary and sufficient properties provides the foundation for a synthesis of seemingly incompatible positions held by contemporary individualists and essentialists concerning the nature of taxa and the definitions of taxon names. (shrink)

: In this paper, we intend to discuss if and in what sense semiosis (meaning process, cf. C. S. Peirce) can be regarded as an "emergent" process in semiotic systems. It is not our problem here to answer when or how semiosis emerged in nature. As a prerequisite for the very formulation of these problems, we are rather interested in discussing the conditions which should be fulfilled for semiosis to be characterized as an emergent process. The first step in this (...) work is to summarize a systematic analysis of the variety of emergence theories and concepts, elaborated by Achim Stephan. Along the summary of this analysis, we pose fundamental questions that have to be answered in order to ascribe a precise meaning to the term "emergence" in the context of an understanding of semiosis. After discussing a model for explaining emergence based on Salthe's hierarchical structuralism, which considers three levels at a time in a semiotic system, we present some tentative answers to those questions. (shrink)

Taxonomies of living things and the methods used to produce them changed little with the institutionalization of evolutionary thinking in biology. Instead, the relationships expressed in existing taxonomies were merely reinterpreted as the result of evolution, and evolutionary concepts were developed to justify existing methods. I argue that the delay of the Darwinian Revolution in biological taxonomy has resulted partly from a failure to distinguish between two fundamentally different ways of ordering identified by Griffiths : classification and systematization. Classification consists (...) of ordering entities into classes, groups defined by the attributes of their members; in contrast, systematization consists of ordering entities into systems, more inclusive entities whose existence depends on some natural process through which their parts are related. Evolutionary, or phylogenetic, systematics takes evolutionary descent to be the natural process of interest in biological taxonomy. I outline a general framework for a truly phylogenetic systematics and examine some of its consequences. (shrink)

Artificial intelligence has been adopted in a wide range of domains. This shows the imperative need to contribute to making citizens insightful actors in debates and decisions involving the adoption of AI mechanisms. Currently, existing approaches to the teaching of basic AI concepts through programming treat machine intelligence as an external element/module. After being trained, that external module is coupled to the main application. Combining block-based programming and WiSARD weightless artificial neural networks, this article presents the conceptualization and design of (...) a new methodology, AI from concrete to abstract, to endow general people with a minimum understanding of what AI means. The main strategy adopted was to include AI training and classification primitives as blocks that compose an otherwise conventional computer program. This way, the programmer can use these blocks as he/she uses other programming constructs. In order to achieve this purpose, we also propose BlockWiSARD, a block-based programming environment designed to promote the demystification of artificial intelligence via practical activities related to the development of learning machines, as well as through the observation of their learning process. As a beneficial side effect of BlockWiSARD, the difference between a program capable of learning from data and a conventional computer program becomes more evident. In addition, the simplicity of the WiSARD weightless artificial neural network model enables easy visualization and understanding of training and classification tasks internal realization. (shrink)

The intention here is that of giving a formal underpinning to the idea of 'meaning-is-use' which, even if based on proofs, it is rather different from proof-theoretic semantics as in the Dummett-Prawitz tradition. Instead, it is based on the idea that the meaning of logical constants are given by the explanation of immediate consequences, which in formalistic terms means the effect of elimination rules on the result of introduction rules, i. e. the so-called reduction rules. For that we suggest an (...) extension to the Curry-Howard interpretation which draws on the idea of labelled deduction, and brings back Frege's device of variable-abstraction to operate on the labels (i. e., proof-terms) alongside formulas of predicate logic. (shrink)

The intention here is that of giving a formal underpinning to the idea of ‘meaning-is-use’ which, even if based on proofs, it is rather different from proof-theoretic semantics as in the Dummett–Prawitz tradition. Instead, it is based on the idea that the meaning of logical constants are given by the explanation of immediate consequences, which in formalistic terms means the effect of elimination rules on the result of introduction rules, i.e. the so-called reduction rules. For that we suggest an extension (...) to the Curry– Howard interpretation which draws on the idea of labelled deduction, and brings back Frege’s device of variable-abstraction to operate on the labels (i.e., proof-terms) alongside formulas of predicate logic. (shrink)

Stem cell tourism is a small but growing part of the thriving global medical tourism marketplace. Much stem cell research remains at the experimental stage, with clinical trials still uncommon. However, there are over 700 clinics estimated to be operating in mostly developing countries – from Costa Rica and Argentina to China, India and Russia – that have lured many patients, mostly from industrialized countries, driven by desperation and hope, which in turn continue to fuel the growth of such tourism.While (...) much research has focused on such dimensions as the promotions that allow such businesses to make their services known, media coverage, some patient research, and regulatory conditions for developing country clinics, little attention has been paid to the non‐affected members of the general population, the future potential users of such services. This empirical study based on five focus group discussions with a diverse group of healthy adults in a Canadian city, explored participant views of patients who use stem cell tourism services, the likelihood they would avail themselves of such services if they were to suffer similar illnesses, and the conditions under which they might do so, and the impact that admonitions and advice from international expert bodies might have on their decisions. Our findings suggest that these healthy adults are sympathetic to the drivers of hope and desperation, and, despite cautions about research limitations, may seek such treatments themselves under similar conditions. These findings are discussed in the context of the policy and ethical issues raised by this form of medical tourism. (shrink)

The historical reconstruction of the origins of the Neutral Theory of Molecular Evolution (NTME) has been seen purely as an extension of a long-held theoretical debate between the classical and balance schools of Population Genetics. In this perspective, the NTME is but a different interpretation of the then recently published data on high intrapopulation genetic variability. In this paper we try to show that this thesis is deficient and partially incorrect. We show that the sources for the construction and development (...) of the NTME are more varied than this traditional account. We support the Dietrich Historical Thesis, which is the view that different versions of the NTME (Kimura, and King and Jukes) show different kinds of experimental and theoretical support and coincide in recognizing the importance of the then new molecular experimental approach and of its comparative results in evolutionary biology. We stress this case to show the limits of the traditional approach in history and philosophy of science that emphasizes the theoretical activities of scientists and the theoretical characterization of disciplines. (shrink)

Taxonomies of living things and the methods used to produce them changed little with the institutionalization of evolutionary thinking in biology. Instead, the relationships expressed in existing taxonomies were merely reinterpreted as the result of evolution, and evolutionary concepts were developed to justify existing methods. I argue that the delay of the Darwinian Revolution in biological taxonomy has resulted partly from a failure to distinguish between two fundamentally different ways of ordering identified by Griffiths : classification and systematization. Classification consists (...) of ordering entities into classes, groups defined by the attributes of their members; in contrast, systematization consists of ordering entities into systems, more inclusive entities whose existence depends on some natural process through which their parts are related. Evolutionary, or phylogenetic, systematics takes evolutionary descent to be the natural process of interest in biological taxonomy. I outline a general framework for a truly phylogenetic systematics and examine some of its consequences. (shrink)

Noël Carroll denies and Robert Stecker affirms that it is a necessary condition of aesthetic experience that it should be valued for its own sake. I make use of their controversy to argue for the psychological impossibility of discharging very common practices of art evaluation and analysis without undergoing an aesthetic experience valued for its own sake. By way of supporting my thesis and also making progress in Stecker and Carroll’s dispute about aesthetic experience, I analyse their methodological assumptions and (...) develop further our understanding of negative, indifferent and unexpected aesthetic experiences. The article provides a defence of Stecker’s position based on my contention regarding art evaluation and analysis. (shrink)

In this article I argue that a high capacity for courage, in the sense of the strength of character that enables one to face distress, angst or psychological pain, is required of Hume’s ideal critics just as the other well-known five characteristics are. I also explore the implications of my proposal for several aspects of Hume’s aesthetics, including the one brought into relief by Shelley’s interpretation of Hume along the lines of distinguishing between the perceptual and affective stages in aesthetic (...) appreciation. (shrink)

Stem cell tourism is a small but growing part of the thriving global medical tourism marketplace. Much stem cell research remains at the experimental stage, with clinical trials still uncommon. However, there are over 700 clinics estimated to be operating in mostly developing countries – from Costa Rica and Argentina to China, India and Russia – that have lured many patients, mostly from industrialized countries, driven by desperation and hope, which in turn continue to fuel the growth of such tourism.While (...) much research has focused on such dimensions as the promotions that allow such businesses to make their services known, media coverage, some patient research, and regulatory conditions for developing country clinics, little attention has been paid to the non-affected members of the general population, the future potential users of such services. This empirical study based on five focus group discussions with a diverse group of healthy adults in a Canadian city, explored participant views of patients who use stem cell tourism services, the likelihood they would avail themselves of such services if they were to suffer similar illnesses, and the conditions under which they might do so, and the impact that admonitions and advice from international expert bodies might have on their decisions. Our findings suggest that these healthy adults are sympathetic to the drivers of hope and desperation, and, despite cautions about research limitations, may seek such treatments themselves under similar conditions. These findings are discussed in the context of the policy and ethical issues raised by this form of medical tourism. (shrink)

O presente artigo analisa o projeto filosófico de John Dewey (1859-1952) que consta de uma crítica radical à epistemologia tradicional a partir da concepção pragmatista de experiência. O status científico da filosofia, conforme Dewey, não exigirá uma teoria científica passível de prova, mas um programa metafísico construído a partir de lógicas situacionais. O presente artigo apresenta as dimensões históricas e científicas da metafísica empírica de Dewey, argumentando a favor da articulação entre as duas abordagens que configuram o projeto de reconstrução (...) da filosofia. Dewey compreende que a busca dos fundamentos últimos tornou a filosofia prisioneira de uma imagem da mente como construtora de representações - algumas exatas, outras não, mas todas com a pretensão de serem estudadas por meio de métodos puros, não empíricos. Diferentemente dessa tradição que supõe uma ideia de superioridade intelectual do saber, revelado por meio de métodos não empíricos, Dewey argumenta a favor do empírico em filosofia e se coloca contra uma comum concepção da realidade como segura, regular e acabada. Palavras Chave: Experiência. Natureza. Metafísica empírica. Reconstrução filosófica. (shrink)

The paper tries to show that an evolutionary perspective helps us to address what is called the adaptation problem, that is, the remarkable coherence, and seemingly successful design, existing between our cognitive tools and the phenomena of the material world. It argues that a fine-grained description of the structure and function of experimental techniques—as a special type amongst evolving scientific practices—is a condition for a better understanding and, ultimately, an explanation of how adaptation among the heterogeneous elements of experimental knowledge (...) is attained. Some apparently contradictory features of techniques, such as their high context-dependency and their capabilities to reproduce and diversify outside their original contexts, are addressed with the help of the concepts of technical variation and the historical entrenchment of phenomena in techniques. In order to do so, a case-study on the construction of satellite-DNA and the evolution of nucleic acid hybridization, a research project carried out by Roy J. Britten and his colleagues in the 1960s, is presented in detail. This case illustrates the close relationship existing between the evolution of techniques and the stabilization of phenomena in experimental biology. (shrink)

Observación panorámica inductiva del Derecho. Movimiento descendente pausado -- Mirada deductiva del Derecho. Movimiento ascendente alegre -- Cuidar el Derecho. Mi iusteoría. Movimiento apasionado.

Dewey desenvolveu um programa doutrinário que visa mostrar como o conhecimento se funda na experiência. Essa é a dimensão científico-naturalista da sua obra. Nesse sentido, o seu projeto consiste numa rigorosa argumentação contra as explicações em que a experiência e a natureza são apresentadas com base em distinções arbitrárias. Na obra, Reconstruction in Philosophy [Reconstrução em Filosofia], Dewey desenvolveu seu projeto metafísico de dimensão historicista, propondo uma reconstrução para a filosofia. Em Experience and Nature [Experiência e Natureza], ele apresentou uma (...) visada científica para a metafísica. Nessa obra, Dewey tenta pensar um sistema desenvolvido a partir da aplicação do método científico à filosofia tendo como base uma concepção filosófica da experiência. As concepções de Dewey acerca do conhecimento, do uso inteligente da razão e da natureza social da filosofia concorrem para a constituição de sua concepção de ciência. Nas duas obras fica evidente a sua crítica à noção tradicional de conhecimento como representação da realidade. Contra isso, Dewey passa a designar o conhecimento como um conjunto de “crenças” e “proposições” tomadas como garantias de usos ou assertividade garantida. Dewey se opõe à forma pela qual o problema epistemológico é formulado pela tradição, ou seja, a partir de uma posição realista ingênua no qual o conhecimento é visto como representação, desconsiderando o processo de conexão entre as coisas e entre o conhecedor e as coisas. (shrink)

O presente artigo analisa a epistemologia realista e naturalista de John Dewey, discutindo sua contribuição para a epistemologia contemporânea. O ponto de partida da investigação consiste em articular os conceitos experiência e natureza da epistemologia de John Dewey às teorias de base naturalistas. Ao final pretendemos revelar que o realismo de Dewey por se caracterizar como naturalista traz contribuições importantes para a epistemologia atual quando se coloca numa vertente contrária ao objetivismo, mas sem prescindir da ciência. Ao se opor a (...) epistemologia clássica Dewey não pretende apartar-se totalmente dessa área da filosofia, mas postular um novo modelo teórico em que o conhecimento possa ser compreendido como mediado por relações naturais, causais, cognitivas e culturais. Revelaremos que esta perspectiva antecipa-se às vertentes contemporâneas do conhecimento cuja explicação passa pela noção de complexidade e holismo. (shrink)

RESUMO O presente trabalho resulta de uma pesquisa sobre a produção intelectual do educador brasileiro Anísio Spínola Teixeira, denominada “ A Influência do Pragmatismo Estadunidense na Filosofia da Educação de Anísio Teixeira: a dimensão político pedagógica na defesa da escola pública”. A pesquisa visa investigar a influência do pragmatismo estadunidense, de modo especial, a presença das ideias do filosófico de John Dewey na obra de Anísio Teixeira e nos movimentos renovadores da educação nacional no Brasil. O trabalho inicia conceituando o (...) pragmatismo e a concepção de filosofia da educação de Anísio Teixeira e, por fim, analisa o documento “Manifesto dos Pioneiros da Educação Nova” fazendo um cotejamento de análise com os ideais de filosofia pragmatista de Teixeira. Na primeira parte do trabalho encontra-se a discussão sobre a origem e natureza do pragmatismo, suas características e desenvolvimentos. E, desta abordagem, mostraremos como se configura a filosofia da educação de Anísio Teixeira e qual o impacto destas ideias no pensamento renovador da Educação Brasileira. O nosso objetivo consiste em identificar nesta concepção de filosofia da educação, a influência do pragmatismo americano, analisar se esta abordagem tem impactos no conteúdo do “Manifesto dos Pioneiros da Educação Nova” e, por fim, nosso propósito é revelar como o Manifesto dos Pioneiros da Educação Nova, enquanto e movimento histórico está ligado à ideia de sociedade democrática da defesa da educação pública como um direito social. Palavras Chave: Pragmatismo. Filosofia da Educação. Manifesto dos Educadores. (shrink)

No processo de reconstrução da filosofia, está colocado para John Dewey o desafio da articulação entre filosofia e ciência e, como consequência disso, a mudança no método de operar da primeira. Dewey desenvolveu um programa doutrinário que visa mostrar como o conhecimento se funda na experiência. Essa é a dimensão científico-naturalista da sua obra, cuja influência advém do naturalismo darwinista. Nesse sentido, o seu projeto consiste numa rigorosa argumentação contra as explicações em que a experiência e a natureza são apresentadas (...) com base em distinções arbitrárias. Na obra Reconstruction in Philosophy, Dewey desenvolveu seu projeto metafísico de dimensão historicista, propondo uma reconstrução para a filosofia. Essa perspectiva é de inspiração hegeliana, considerando a história como “fluxo dos acontecimentos”. Sua argumentação consiste em reivindicar uma filosofia da experiência, na medida em que se apropria do método científico. Dewey tenta pensar um sistema desenvolvido a partir da aplicação do método científico à filosofia, mas tendo como base uma concepção filosófica da experiência. As concepções de Dewey acerca do conhecimento, do uso inteligente da razão e da natureza social da filosofia concorrem para a constituição de sua concepção de ciência. O objetivo do filósofo é desenvolver um projeto científico e metodológico que exigirá outra forma de fazer filosofia, que ele caracteriza como uma filosofia empírica. Embora Dewey defenda uma filosofia com uma visada científica, isso não significa que ele subordine a filosofia à ciência. Ocorre que Dewey se opõe à forma pela qual o problema epistemológico foi formulado pela tradição, ou seja, desconsiderando o processo de conexão entre as coisas e entre o conhecedor e as coisas. No presente artigo apresentamos este projeto filosófico denominado por nós de metafísica empírica. Iniciamos, argumentando a partir de Dewey, com a necessidade da constituição e formação de uma mentalidade científica tendo em vista os fins sociais. Esta reivindicação decorre do fato de Dewey considerar que ciência e democracia compartilham não apenas o mesmo padrão de investigação, o “método da inteligência”, mas também as mesmas virtudes morais: uma disposição para questionar, para procurar clareza e evidência, para ouvir e respeitar as opiniões dos outros, para considerar alternativas de forma imparcial, para mudar de ponto de vista em virtude da investigação e da comunicação. Por fim, discutiremos a teoria pragmatista da existência, cujo objetivo é a constituição de uma nova metafísica que consiste em administrar, no domínio temporal, o finito e o humano em sua relação com o eterno e o infinito, ou seja, visa apreender a realidade enquanto produto dos seus condicionantes. Em sua crítica à metafísica tradicional, Dewey deixa subentendido que o que se tem em termos dessas metafísicas não passa de técnicas intelectuais refinadas, derivadas das ideias rudimentares da fé popular acerca do sobrenatural e do natural, do divino e do humano. (shrink)

Anísio, Anísios Teixeira: um educador no Museu do Homem do Nordeste traz ao público leitor o pensamento, a atuação e a influência de um dos personagens mais instigantes da cultura brasileira do século XX, o educador Anísio Teixeira (1900-1971). Através da criação da escola Experimental do Recife ligada ao Centro Regional de Pesquisas Educacionais de Pernambuco, Anísio Teixeira teve uma intensa participação na história do então Instituto Joaquim Nabuco de Pesquisas Sociais, hoje Fundação Joaquim Nabuco. Com artigos escritos por coordenaodres (...) do Museu do Homem do Nordeste da Fundaj, e também por alguns de seus educadores, este livro atualiza as influências e o papel que as ideias do educador baiano exercem na educação de jovens nos dias de hoje"--Provided by Publisher. (shrink)

Terms loaded with informational connotations are often employed to refer to genes and their dynamics. Indeed, genes are usually perceived by biologists as basically ‘the carriers of hereditary information.’ Nevertheless, a number of researchers consider such talk as inadequate and ‘just metaphorical,’ thus expressing a skepticism about the use of the term ‘information’ and its derivatives in biology as a natural science. First, because the meaning of that term in biology is not as precise as it is, for instance, in (...) the mathematical theory of communication. Second, because it seems to refer to a purported semantic property of genes without theoretically clarifying if any genuinely intrinsic semantics is involved. Biosemiotics, a field that attempts to analyze biological systems as semiotic systems, makes it possible to advance in the understanding of the concept of information in biology. From the perspective of Peircean biosemiotics, we develop here an account of genes as signs, including a detailed analysis of two fundamental processes in the genetic information system (transcription and protein synthesis) that have not been made so far in this field of research. Furthermore, we propose here an account of information based on Peircean semiotics and apply it to our analysis of transcription and protein synthesis. (shrink)