We formulate from first principles a theory of stochastic processes in configuration space. The fundamental equations of the theory are an equation of motion which generalizes Newton's second law and an equation which expresses the condition of conservation of matter. Two types of stochastic motion are possible, both described by the same general equations, but leading in one case to classical Brownian motion behavior and in the other to quantum mechanical behavior. The Schrödinger equation, which is derived here with no (...) further assumption, is thus shown to describe a specific stochastic process. It is explicitly shown that only in the quantum mechanical process does the superposition of probability amplitudes give rise to interference phenomena; moreover, the presence of dissipative forces in the Brownian motion equations invalidates the superposition principle. At no point are any special assumptions made concerning the physical nature of the underlying stochastic medium, although some suggestions are discussed in the last section. (shrink)

The moral virtues are the normative foundations of peace. Building on this, thepaper argued that peaceful co-existence among religions and identities is possibleeven in a highly pluralized society. The study employed the philosophical-criticalmethod where factual and philosophical data are extrapolated from relevant literatures and are used to advance the main thesis via a rigorous philosophical dialectic. The study found that the moral virtues are the primary principles of thenatural law, which are naturally and spontaneously known through the practicalreason/conscience. In as (...) much as religions presuppose the existence of God, themoral virtues constitute God’s primary will for all men to accomplish and arethe first and highest duties of religions. Although, most religions, if not all, teachthe importance of the moral virtues, they are not given the highest position.Conflicts arise when religious laws, customs and traditions, which sometimesare contrary to the moral virtues, are given the highest priority. Thus, the paperargued that the moral virtues should be considered as the primary and overridingprinciples by which religious observance is judged as faithful or not. The paperconcluded that peace can be achieved when leaders of different religions anchortheir religious teachings, religious life, and the notion of religious fidelity mainlyor primarily on the moral virtues, and above all, love. Keywords: Philosophy of religion, peace, duties of religion, thin universalism, moralvirtues, natural law, Philippines. (shrink)

We revisit the nonrelativistic problem of a bound, charged particle subject to the random zero-point radiation field, with the purpose of revealing the mechanism that takes it from the initially classical description to the final quantum-mechanical one. The combined effect of the zpf and the radiation reaction force results, after a characteristic time lapse, in the loss of the initial conditions and the concomitant irreversible transition of the dynamics to a stationary regime controlled by the field. In this regime, the (...) canonical variables x, p become expressed in terms of the dipolar response functions to a set of field modes. A proper ordering of the response coefficients leads to the matrix representation of quantum mechanics, as was proposed in the early days of the theory, and to the basic commutator x^,p^=iħ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\left[ {\hat{x}},{\hat{p}}\right] =i\hbar $$\end{document}. Further, the connection with the corresponding Fokker–Planck equation valid in the Markov approximation, allows one to obtain the radiative corrections of qed. These results reaffirm the essentially electrodynamic and stochastic nature of the quantum phenomenon, as proposed by stochastic electrodynamics. (shrink)

While the notion of chance has been central in discussions over the probabilistic nature of natural selection and genetic drift, its role in the production of variants on which populational sampling takes place has received much less philosophical attention. This article discusses the concept of chance in evolution in the light of contemporary work in evo-devo. We distinguish different levels at which randomness and chance can be defined in this context, and argue that recent research on variability and evolvability (...) demands a causal understanding of variational probabilities under which development acquires a creative, rather than a constraining role in evolution. We then provide a propensity interpretation of variational probabilities that solves a conceptual confusion between causal properties, variational probabilities and extant variation present in the literature, and explore some metaphysical consequences that follow from our interpretation, specifically with regards to the nature of developmental types. 2.1Mutational randomness 2.2Morphological randomness 2.3Adaptive randomness3Variability and Phenotypic Probabilities 3.1The RNA model as a model for evo-devo4Evolvability and the Probability of Evolving5Variational Propensities in Evo-Devo 5.1Individuating variational propensities 5.2Developmental types6Conclusion. (shrink)

Aristotle’s influence on D’Arcy Thompson was praised by Thompson himself and has been recognized by others in various respects, including the aesthetic and normative dimensions of biology, and the multicausal explanation of living forms. This article focuses on the relatedness of organic forms, one of the core problems addressed by both Aristotle’s History of Animals (HA), and the renowned chapter of Thompson’s On Growth and Form (G&F), “On the Theory of Transformations, or the Comparison of Related Forms.” We contend that, (...) far from being an incidental inspiration stemming from Thompson’s classicist background, his translation of HA played a pivotal role in developing his theory of transformations. Furthermore, we argue that Thompson’s interpretation of the Aristotelian method of comparison challenges the prevailing view of Aristotle as the founder of “typological essentialism,” and is a key episode in the revision of this narrative. Thompson understood that the method Aristotle used in HA to compare animal forms is better comprehended as a “method of transformations,” leading to a morphological arrangement of animal diversity, as opposed to a taxonomical classification. Finally, we examine how this approach to the relatedness of forms lay the foundation for a causal understanding of parts and their interconnections. Although Aristotle and Thompson emphasized distinct types of causes, we contend that they both differ in a fundamental sense from the one introduced by Darwin’s theory of natural selection, which was formulated as a solution to the species problem rather than the form problem. We conclude that Thompson’s interpretation of Aristotle’s approach to form comparison has not only impacted contemporary scholarship on Aristotle’s biology, but revitalized a perspective that has regained significance due to the resurgence of the problem of form in evo-devo. (shrink)

Despite the radical importance of embryology in the development of organi- cism, developmental biology remains philosophically underexplored as a theoretical and empirical resource to clarify the nature of organisms. This paper discusses how embryology can help develop the organisational definition of the organism as a differentiated, function- ally integrated, and autonomous system. I distinguish two conceptions of development in the organisational tradition that yield two different conceptions of the organism: the life- history view claims that organisms can be considered (...) as such during their whole ontogeny; the constitutive view distinguishes two periods in the life history, a period of generation and a period of self-maintenance of a constitutive organisation. Arguing in favour of the con- stitutive view, it will be claimed that the organisational criteria for the definition of organ- ism (i.e., differentiation, functional integration, and autonomy) can only be applied to the developmental system when it has entered the period of self-maintenance of a constitutive organisation. under the light of current research in developmental biology, it is possible to make explicit how organisms come to be as organisms. To this end, I explore key onto- genetic events that help us clarify the core aspects of animal organisation and allow us to identify the developmental stage that marks the ontological transition between an organism in potency and an organism in actuality. The structure of this ontogenetic unfolding paral- lels the conceptual structure of the very notion of organism; the generation of the being of a particular organism parallels its definition. (shrink)

La filosofía moral de Adam Smith se fundamenta en el papel de la imaginación para explicar el orden social en un nivel macro, y como mecanismo de identificación afectiva en un nivel micro. En ambos casos, el rol de la imaginación en nuestra psicología moral refuta la tesis de un homo economicus, o de que el ser humano está motivado a entrar en sociedad por su interés personal. Esto sirve de premisa para refutar la posición hobbesiana de un estado de (...) naturaleza histórico que está en la base de nuestros juicios morales que fundan la sociedad civil y la necesidad del magistrado. Adam Smith's moral philosophy is grounded in the role of the imagination in explaining the social order at a macro level and as a mechanism for affective identification at the micro level. In both cases, the role of the imagination in our moral psychology refutes the homo economicus thesis according to which human beings are motivated to enter into society due to personal interests. This premise serves to refute the Hobbesian position of a historical state of nature that underlies the moral judgments grounding civil society and the need for a magistrate. (shrink)

RESUMENEl artículo analiza el papel desempeñado por los argumentos de pendiente resbaladiza en los debates prácticos. Por un lado, estos argumentos suelen ejemplificar una forma d razonamiento imperfecto o paradójico. De hecho, la Filosofía clásica griega ya identificó las principales dificultades del sorites, el argumento del «montón». Por otro lado, la pendiente resbaladiza llama de nuevo la atención de la Filosofía contemporánea, ya que ocupa un lugar destacado en determinadas cuestiones morales, como pueden ser la eutanasia, los límites de la (...) investigación biomédica, o las posibles consecuencias de la intervención humana sobre el medio ambiente natural y sobe otras especies, no humanas. De esta forma, la Ética aplicada examina los riesgos y efecto son deseables de decisiones que, el comienzo, eran o parecían perfectamente aceptables, y lo hace así a pesar de que la metáfora de la pendiente resbaladiza no pueda aportar suficientes evidencias para frenar aquellas decisiones que comportan riesgos. Aun así, la pendiente sirve para expresar el peligro, la tragedia, los efectos negativos que amenazarían nuestra existencia, o la de las generaciones futuras. Por lo tanto, imágenes como la «caja de Pandora», la «ruptura de los diques», el «alud», no solo transmiten que algunas acciones pueden poner en riesgo la vida sino que, además, ilustran el uso práctico de los argumentos imperfectos.PALABRAS CLAVEpendiente resbaladiza, argumentación práctica, Ética aplicada.ABSTRACTThe article would analyze the role of the slippery-slope arguments in practical debates. On the one hand, they usually exemplify the imperfect, paradoxical reasoning; in fact, the ancient Greek Philosophy already identified the central flaws of the sorites, the «heap» argument. On the other hand, the metaphor of the slippery-slope draws again the attention of contemporary Philosophy, since it has a central part in some ethical issues, as happens with questions like euthanasia, the limits of biomedical research, and the possible consequences of the human action on the natural environment, and on non-humans. So, applied Ethics considers risks and undesirable effects of decisions that, at the very beginning, are, or seem acceptable, in spite of the fact that the slippery-slope could not allege enough evidences to prevent from this risky decision. However, it expresses how danger, tragedy, negative outcome would intrude in our existence, or in the existence of the next generations. Therefore, images like the «Pandora’s box», the «broken docks», the «avalanche», etc, not only suggest that some actions could definitively endanger life, but they illustrate the practical use of imperfect arguments.KEY WORDSslippery- slope, practical argumentation, applied Ethics. (shrink)

Una experiencia del vacío inicial y decisiva, y la valoración de los principales filósofos contemporáneos a la luz de ella. La filosofía dialógica del “Yo-Tú” y la identidad del “Tú”; síntesis entre trascendencia e inmanencia. Hacia lo desconocido: la antinomia religiosa. Objeciones a la postura de Buber.

Despite the radical importance of embryology in the development of organicism, developmental biology remains philosophically underexplored as a theoretical and empirical resource to clarify the nature of organisms. This paper discusses how embryology can help develop the organisational definition of the organism as a differentiated, functionally integrated, and autonomous system. I distinguish two conceptions of development in the organisational tradition that yield two different conceptions of the organism: the life-history view claims that organisms can be considered as such during (...) their whole ontogeny; the constitutive view distinguishes two periods in the life history, a period of generation and a period of self-maintenance of a constitutive organisation. Arguing in favour of the constitutive view, it will be claimed that the organisational criteria for the definition of organism (i.e., differentiation, functional integration, and autonomy) can only be applied to the developmental system when it has entered the period of self-maintenance of a constitutive organisation. Under the light of current research in developmental biology, it is possible to make explicit how organisms come to be as organisms. To this end, I explore key ontogenetic events that help us clarify the core aspects of animal organisation and allow us to identify the developmental stage that marks the ontological transition between an organism in potency and an organism in actuality. The structure of this ontogenetic unfolding parallels the conceptual structure of the very notion of organism; the generation of the being of a particular organism parallels its definition. (shrink)

This paper employs network theory, mining data and bibliometric analysis when mapping the scientific contribution of Nobel Prize candidate; Manuel Sandoval Vallarta, the first and most renowned Mexican physicist and important figure in Latin American science. Vallarta died in 1977, and the existing literature is about his life and contributions to science but not about how those are still valuable today. This paper is the first to highlight, with mapping tools, that his contributions are relevant to the international community of (...) cosmic rays, quantum mechanics and relativity. These tools delivered three findings: Identify how he built his own field of study, same as universal knowledge. Unveil that the backward and forward Vallarta citations follow a scale-free network distribution. Determine social factors that benefited or affected his scientific activities—such as World War II interrupting Vallarta’s successful productivity at Massachusetts Institute of Technology. Furthermore, this study confirmed the interdisciplinary nature of the mapping studies of the scientist's contributions using scientometric tools. As a result, several interesting questions arose throughout our research, some of which were answered from the history and philosophy of science. However, others need to be analyzed by experts in the fields of Vallarta. Mapping research sends an invitation to interdisciplinary dialogue/research between experts in different areas of study to better understand the process of knowledge production both, individual and collective. (shrink)

In this paper we defend structural representations, more specifically neural structural representation. We are not alone in this, many are currently engaged in this endeavor. The direction we take, however, diverges from the main road, a road paved by the mathematical theory of measure that, in the 1970s, established homomorphism as the way to map empirical domains of things in the world to the codomain of numbers. By adopting the mind as codomain, this mapping became a boon for all those (...) convinced that a representation system should bear similarities with what was being represented, but struggled to find a precise account of what such similarities mean. The euforia was brief, however, and soon homomorphism revealed itself to be affected by serious weaknesses, the primary one being that it included systems embarrassingly alien to representations. We find that the defense attempts that have followed, adopt strategies that share a common format: valid structural representations come as “homomorphism plus X”, with various “X”, provided in descriptive format only. Our alternative direction stems from the observation of the overlooked departure from homomorphism as used in the theory of measure and its later use in mental representations. In the former case, the codomain or the realm of numbers, is the most suited for developing theorems detailing the existence and uniqueness of homomorphism for a wide range of empirical domains. In the latter case, the codomain is the realm of the mind, possibly more vague and more ill-defined than the empirical domain itself. The time is ripe for articulating the mapping between represented domains and the mind in formal terms, by exploiting what is currently known about coding mechanisms in the brain. We provide a sketch of a possible development in this direction, one that adopts the theory of neural population coding as codomain. We will show that our framework is not only not in disagreement with the “plus X” proposals, but can lead to natural derivation of several of the “X”. (shrink)

The work of Pere Alberch is crucial to study the early stages of evo-devo. In particular, it illustrates very persuasively why developmental systems have so much to say about the course of evolutionary change. In addition to an important empirical work, he elaborated a stimulating framework of theoretical ideas on biological form, morphological variation, and how developmental processes establish possible evolutionary paths previous to the action of natural selection. In this framework, the study of development and evolution are related through (...) the notion of possible morphologies. In his view, the morphology of organisms shows internal coherence and structure, emergent from complex non linear interactions among parts and with the environment. (shrink)

ABSTRACT This article reconstructs Oskar Negt and Alexander Kluge’s critical theory by articulating some of the key concepts of History and Obstinacy, their second collaboration. The objective is to detail the grounds of their critical theory and to show how it acquires its normative character. To this aim, in a first step, I reconstruct the basis of the anthropology developed by Negt and Kluge. This anthropology allows them to argue that subjects-insofar as they are creative beings-possess ‘obstinacy’, which they understand (...) as an intrinsic and material power to resist oppression. Following this, I discuss the concept of ‘primitive accumulation’, which is used by Negt and Kluge to expose the relation between capitalism and obstinacy. Finally, I clarify the way Negt and Kluge appeal to the concept of ‘human nature’ in order to show how their theory derives its normative character. To do so, I rely on Christoph Menke’s work on ‘inner nature’. (shrink)

As a result of the complexity inherent in some natural systems, mathematical models employed in ecology are often governed by a large number of variables. For instance, in the study of population dynamics we often find multiregional models for structured populations in which individuals are classified regarding their age and their spatial location. Dealing with such structured populations leads to high dimensional models. Moreover, in many instances the dynamics of the system is controlled by processes whose time scales are very (...) different from each other. For example, in multiregional models migration is often a fast process in comparison to the growth of the population.Approximate reduction techniques take advantage of the presence of different time scales in a system to introduce approximations that allow one to transform the original system into a simpler low dimensional system. In this way, the dynamics of the original system can be approximated in terms of that of the reduced system. This work deals with the study of that approximation. In particular, we work with a non-autonomous discrete time model previously presented in the literature and obtain different bounds for the error we incur when we describe the dynamics of the original system in terms of the reduced one. (shrink)

As the result of the complexity inherent in nature, mathematical models employed in ecology are often governed by a large number of variables. For instance, in the study of population dynamics we often deal with models for structured populations in which individuals are classified regarding their age, size, activity or location, and this structuring of the population leads to high dimensional systems. In many instances, the dynamics of the system is controlled by processes whose time scales are very different (...) from each other. Aggregation techniques take advantage of this situation to build a low dimensional reduced system from which behavior we can approximate the dynamics of the complex original system.In this work we extend aggregation techniques to the case of time dependent discrete population models with two time scales where both the fast and the slow processes are allowed to change at their own characteristic time scale, generalizing the results of previous studies. We propose a non-autonomous model with two time scales, construct an aggregated model and give relationship between the variables governing the original and the reduced systems. We also explore how the properties of strong and weak ergodicity, regarding the capacity of the system to forget initial conditions, of the original system can be studied in terms of the reduced system. (shrink)

The idea has recently taken root that evolutionary theory and social constructivism are less antagonistic than most theorists thought, and we have even seen attempts at integrating constructivist and evolutionary approaches to human thought and behaviour. We argue in this article that although the projected integration is possible, indeed valuable, the existing attempts have tended to be vague or overly simplistic about the claims of social constructivist. We proceed by examining how to give more precision and substance to the research (...) programme of evolutionary social constructivism, a task we accomplish by focusing on the specific selection pressures that may have shaped the psychological and cultural mechanisms that give rise to social constructions. The benefit of such an integration for social constructivism is to have a solid foundation in the natural sciences. For evolutionists, evolutionary social constructivism offers a wider assortment of methods with which to study the interplay between culture and human nature. (shrink)

1. ptie. La nature en général [in 3 fasc.]--2. ptie. La nature vivante et connaissante.

In this article the author considers as a central matter the significance of M. Tullius Cicero’s conception of self-knowledge in his philosophical and political theory. With this purpose, the author justifies the contribution of Ciceronian elaboration to the matter as a rereading of the Socratic-platonic tradition, in the field of Roman philosophy, inquiring its own components. Thus, the author develops an exegesis on the characteristics of Ciceronian conception of self- knowledge in De republica, De legibus, De finibus bonorum et malorum, (...) Tusculanae disputationes and parallel texts, in order to ponder its mediation in the constitution of the political community. In this context, the author examines the rol of natural law in the development of the self-knowledge and the discovery of the human community. (shrink)

La publication par John Toland de l’Enquête sur la vertu ou le mérite de Shaftesbury semble indiquer une complicité, voire même une convergence de doctrine entre les deux penseurs. Or, cette convergence apparente masque la spécificité de chacun concernant surtout les concepts de nature et de communauté. Plus précisément, l’orientation de la nature par rapport à la communauté humaine ne se fait pas pour les mêmes raisons. Alors que Shaftesbury inclut nature et communauté dans une même perspective (...) pour aboutir à l’analyse du lien social, Toland forge un projet de connaissance théorique de la nature qui l’affranchit de la définition essentiellement pratique de toute communauté humaine en général. (shrink)

Cet article, qui fut d’abord une conférence prononcée lors du Colloque sur Charles De Koninck, à l’Université Laval, du 29 au 31 janvier 2010, se propose d’introduire aux thèmes majeurs de la philosophie de la nature de l’ancien doyen de la Faculté de philosophie. Se fondant sur la récente édition de ses écrits cosmologiques et épistémologiques, notamment sur un texte de jeunesse , Le cosmos, devenu introuvable et profus en intuitions neuves, l’exposé se propose d’y discerner trois couches de (...) plus en plus profondes. La première expose avec bonheur et pédagogie la philosophie de la nature aristotélico-thomasienne. La deuxième se situe à la croisée féconde de cette première perspective et de l’apport philosophiquement intégré des sciences actuelles, notamment l’histoire du cosmos et de la vie . Enfin, l’étude émet l’hypothèse que, dès ses premières années d’enseignement, Charles De Koninck a ébauché une approche inédite et inachevée touchant les principes même de sa philosophie, que l’on pourrait intituler de manière programmatique: une cosmologie de l’amour. (shrink)

Giorgio Agamben is a philosopher well known for his brilliance and erudition, as well as for the difficulty and diversity of his seventeen books. The interest which his _Homo Sacer_ sparked in America is likely to continue to grow for a great many years to come. _Giorgio Agamben: A Critical Introduction_ presents the complexity and continuity of Agamben's philosophy—and does so for two separate and distinct audiences. It attempts to provide readers possessing little or no familiarity with Agamben's writings with (...) points of entry for exploring them. For those already well acquainted with Agamben's thought, it offers a critical analysis of the achievements that have marked it. (shrink)

À lire le dernier essai de Pierre Kerzberg, ce que nous appelons la nature n’est plus que l’ombre d’elle-même. Avons-nous donc vraiment perdu la nature ? Ne sommes-nous pas en train de redécouvrir ce qu’elle est et ce qu’elle vaut ? Une certaine effervescence existe de fait aujourd’hui qui rend probable un intérêt nouveau pour une philosophie de la nature. Mais discerner ce qu’il en est exactement exige une certaine attention à une longue histoire. La philosophie de (...) la nature que l’on a perdue depuis longtemps et qui éveille toujours la nostalgie est celle des Anciens. Les philosophies modernes de la nature, elles, ne répondent plus au programme de ces cosmologies antiques et médiévales dont le propos est clairement ontologique.Au vu des possibilités qu’atteste l’histoire des philosophies de la nature, on ne peut envisager la situation actuelle à partir de la simple alternative du retour ou du non retour d’une philosophie de la nature que l’on situe en fait dans l’optique de la cosmologie ancienne. La situation est nettement plus complexe et les options plus nombreuses. According to Pierre Kerzberg’s latest essay, what we call nature is no longer but the shadow of itself. Have we really lost nature, then? Or, rather, are we not in the process of rediscovering what it is and what it is worth? There is a certain effervescence in the air today that makes a new interest in a philosophy of nature quite likely. However, discerning exactly where things stand requires we pay some attention to history over a longer time. The philosophy of nature that we lost long ago and that still awakens nostalgia is the Ancients’ philosophy of nature. Modern philosophies of nature, on the other hand, no longer correspond to the program set out by ancient and medieval cosmologies, the substance of which is clearly ontological.In view of the possibilities attested by the history of philosophies of nature, we can no longer envisage the present-day situation on the basis of a simple alternative between the return or non-return of a philosophy of nature which is in fact placed in the perspective of ancient cosmology. The situation is considerably more complex and the options far more numerous. (shrink)

Dans son œuvre, Schopenhauer a discuté en profondeur les sujets scientifiques et a élaboré une philosophie de la nature pour encadrer dans son système les connaissances développées par la recherche scientifique. Cet article analyse la philosophie de la nature de Schopenhauer dans le Monde comme volonté et représentation et ses variations dans la Volonté dans la nature, les Compléments et les Parerga et Paralipomena. On montre que la question du rôle des sciences dans le système du monde (...) comme volonté est centrale dans l’image que Schopenhauer a de la philosophie. (shrink)

Pour Répondre à la question qui constitue le titre de cet essai, il faut d'abord répondre à une autre question, à savoir: qu'est-ce que la philosophie de la nature? De quoi parlons-nous au juste quand nous parlons de philosophie de la nature?

On tente ici de mettre en évidence la perspective, les enjeux et quelques résultats fondamentaux de la philosophie hégélienne de la nature, qui apparaît comme la ressaisie de l’ordre génétique de la nature telle qu’elle se présente elle-même. Si la catégorie fondamentale de la nature est l’extériorité au sens de la dispersion radicale, celle-ci est gouvernée par une tendance à la réunification. De la mécanique à la physique organique en passant par la physique, la nature gagne (...) de fait en rationalité et en autonomie, sans jamais pourtant supprimer son extériorité. (shrink)

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