A Note on Determinism and Deliberation

Philosophical inquiry about metaphysically loaded expressions like “law of nature,” “essence,” and “ground” faces a choice point: Do we need the word, and the concept that goes with it, in order to facilitate thought and communication about some distinctive, explanatorily important metaphysical structure? Or does their value for us consist in the way they play some crucial epistemic role, a role that can itself be characterized without reference to any such metaphysical structure? Here I explore the latter option, in the form of “respectful deflationism”: roughly, the position that we can in good conscience take some putatively metaphysical expression to be of central philosophical importance, but for entirely non-metaphysical reasons. I use recent debates between Humeans and anti-Humeans about laws of nature as a case study.

This paper applies a very traditional position within Natural Law Theory to Cyberspace. I shall first justify a Natural Law approach to Cyberspace by exploring the difficulties raised by the Internet to traditional principles of jurisprudence and the difficulties this presents for a Positive Law Theory account of legislation of Cyberspace. This will focus on issues relating to geography. I shall then explicate the paradigm of Natural Law accounts, the Treatise on Law, by Thomas Aquinas. From this account will emerge the structure of law and the metaphysics of justice. I shall explore those aspects of Cyberspace which cause geography to be problematic for Positive Law Theory and show how these are essential, unavoidable and beneficial. I will then apply Aquinas’s structure of law and metaphysics of justice to these characteristics. From this will emerge an alternative approach to cyberlaw which has no problem with the nature of Cyberspace as it is but treats it as a positive foundation for new legal developments.

The article examines the problem of applying the canon of pure reason to ethics as a sphere of practical knowledge and Kant’s justification of the moral metaphysics reality. Kant defines the canon of reason as a set of a priori principles that promote the correct use of cognitive abilities. In the Critique of Pure Reason, he establishes that any synthetic knowledge of pure reason in its speculative application is completely impossible. This means that a canon of speculative application of pure reason is also impossible. Kant believes that this canon is possible only in relation to practical, not speculative,cognition. The article reveals the basic principles of the practical application of the canon of pure reason, which determine the reality of the metaphysics of morals. These principles are 1) the justification of imperatives and postulates of morality as a priori synthetic judgments that expand our knowledge, like the judgments of mathematics and natural science, and 2) the determination of the categorical imperative status as a moral law expressing universal necessity, like the laws of nature. The article shows that the prior-synthetic language of ethical judgments reflects the corresponding metaphysical structure of moral reality hidden behind ‘pure’ ethical knowledge. This reality is not reducible only to the imperative of duty and the universal moral law. It includes a kind of moral ontology, appearing in the form of a ‘Kingdom of Ends’, as an intelligible world of rational beings (mundus intelligibilis). The article discusses the problem of the relationship between the ‘Kingdom of Ends’ and the ‘Realm of nature’ in terms of connecting the theoretical and practical abilities of mind. The connecting link here is the ‘Kingdom of the beautiful’, which Kant defines as ‘a symbol of moral goodness’. The article develops the idea that ‘pure ethics’ comes into close contact here with the aesthetics of the expediency of being, and the universal ability of judgment intersects with moral obligation. The final part of the article examines the postulates of pure reason (immortality of the soul, free will and the existence of God) and their moral and practical transformation through ethical and theological synthesis.

Our work involved the continued development of the theory of passivity and passivity breakdown, in the form of the Point Defect Model, with emphasis on zirconium and zirconium alloys in reactor coolant environments, the measurement of critically-important parameters, and the development of a code that can be used by reactor operators to actively manage the accumulation of corrosion damage to the fuel cladding and other components in the heat transport circuits in both BWRs and PWRs. In addition, the modified boiling crevice model has been further developed to describe the accumulation of solutes in porous deposits (CRUD) on fuel under boiling (BWRs) and nucleate boiling (PWRs) conditions, in order to accurately describe the environment that is contact with the Zircaloy cladding. In the current report, we have derived expressions for the total steady-state current density and the partial anodic and cathodic current densities to establish a deterministic basis for describing Zircaloy oxidation. The models are “deterministic” because the relevant natural laws are satisfied explicitly, most importantly the conversation of mass and charge and the equivalence of mass and charge (Faraday’s law). Cathodic reactions (oxygen reduction and hydrogen evolution) are also included in the models, because there is evidence that they control the rate of the overall passive film formation process. Under open circuit conditions, the cathodic reactions, which must occur at the same rate as the zirconium oxidation reaction, are instrumental in determining the corrosion potential and hence the thickness of the barrier and outer layers of the passive film. Controlled hydrodynamic methods have been used to measure important parameters in the modified Point Defect Model (PDM), which is now being used to describe the growth and breakdown of the passive film on zirconium and on Zircaloy fuel sheathing in BWRs and PWRs coolant environments. The modified PDMs recognize the existence of a thick oxide outer layer over a thin barrier layer. From thermodynamic analysis, it is postulated that a hydride barrier layer forms under PWR coolant conditions whereas an oxide barrier layer forms under BWR primary coolant conditions. Thus, the introduction of hydrogen into the solution lowers the corrosion potential of zirconium to the extent that the formation of ZrH2 is predicted to be spontaneous rather than the ZrO2. Mott-Schottky analysis shows that the passive film formed on zirconium is n-type, which is consistent with the PDM, corresponding to a preponderance of oxygen/hydrogen vacancies and/or zirconium interstitials in the barrier layer. The model parameter values were extracted from electrochemical impedance spectroscopic data for zirconium in high temperature, de-aerated and hydrogenated environments by optimization. The results indicate that the corrosion resistance of zirconium is dominated by the porosity and thickness of the outer layer for both cases. The impedance model based on the PDM provides a good account of the growth of the bi-layer passive films described above, and the extracted model parameter values might be used, for example, for predicting the accumulation of general corrosion damage to Zircaloy fuel sheath in BWR and PWR operating environments. Transients in current density and film thickness for passive film formation on zirconium in dearated and hydrogenated coolant conditions have confirmed that the rate law afforded by the Point Defect Model (PDM) adequately describes the growth and thinning of the passive film. The experimental results demonstrate that the kinetics of oxygen or hydrogen vacancy generation at the metal/film interface control the rate of film growth, when the potential is displaced in the positive direction, whereas the kinetics of dissolution of the barrier layer at the barrier layer/solution interface control the rate of passive film thinning when the potential is stepped in the negative direction. In addition, the effects of second phase particles (SPPs) on the electrochemistry of passive zirconium in the hydrogenated, high temperature aqueous solutions were examined by using different heat-treated Zircaloy-4 samples; i.e., as-received, -quenched, and -annealed. The average size of the second phase particles in the Zircaloy-4 samples was in the sequence of -quenched < -annealed < as-received, with the reverse sequence being observed in the areal density. Electrochemical studies show that the size and density of the second phase particles are the determining factors of the electrochemical properties of the passive films. The second phase particles may cause short circuits in the electrical path across the passive film, which would explain the effect of the size and the density of the SPPs, and hence heat treatment, on the corrosion properties of passive Zircaloy-4.

The article analyzes the metaphor “Copernican revolution,” used by Kant to highlight the core idea of his philosophy. The author argues that Kant uses the analogies with mathematics and natural science for establishing criteria of scientific character of knowledge. These criteria include the hypothetic-deductive or a priorimethod of thinking, which determines the apodictic, i.e. necessary and objective, character of the basic laws of nature, as well as the verification of laws a priorithrough experiments.The author focuses on Kant’s idea of the possibility of scientific metaphysics based on these criteria. She claims that the structure of scientific metaphysics and the epistemological status of its statements depend on what kind of objects it deals with: with phenomena given to us by sensuality, with only conceivable “things in themselves” or with supersensitive “objects of an idea.” In the last part, the author interprets the meaning of the metaphor “Copernican turn” as the upgrading of logic, the idea of “transcendental idealism” and discusses the possibility of using the metaphor “Ptolemaic system” to characterize the practical philosophy of Kant.