L. Anthony

Responding to recent concerns about the reliability of the published literature in psychology and other disciplines, we formed the X-Phi Replicability Project to estimate the reproducibility of experimental philosophy. Drawing on a representative sample of 40 x-phi studies published between 2003 and 2015, we enlisted 20 research teams across 8 countries to conduct a high-quality replication of each study in order to compare the results to the original published findings. We found that x-phi studies – as represented in our sample – successfully replicated about 70% of the time. We discuss possible reasons for this relatively high replication rate in the field of experimental philosophy and offer suggestions for best research practices going forward.

This essay is an analysis of the theory of human rights based on the writings of Thomas Aquinas, with special reference to the Summa Theologiae. The difference between a jus naturale found in Aquinas and the theory of human rights developed by the sixteenth century scholastic philosophers is articulated. The distinction between objective natural rights—“what is right”—and subjective natural rights—“a right”—is discussed noting that Aquinas held the former position and that later scholastic philosophers beginning with the Salamanca School of the Second Scholasticism developed the latter position. The subjective theory of rights evolved into the modern and contemporary account of individual human rights. The essay ends with an argument suggesting that Aquinas’s theory of objective human rights can serve as the ontological foundation for a robust theory of both positive and negative subjective natural rights.

This paper examines the function of Hume’s use of a peculiar example from A Treatise of Human Nature. The example in question is that of a burning piece of coal that is whirled around at a sufficient speed to present to a viewer an image of a circle of fire. The example is a common one; and Hume himself points to Locke as his source in this case. Hume’s reference appears accurate since both Locke and Hume seem to marshal the example in order to bolster a case for an upper and lower temporal threshold for perception. But several philosophical problems inherent in Hume’s appeal to the example make the case for Locke as Hume’s sole or even primary source difficult to sustain. The paper sketches a history of uses of the example from the seventeenth century through the twentieth century. An argument is presented that Pierre Bayle’s use of the example is most in accord with Hume’s, and that for this and other reasons, Bayle is his likeliest source. Further, making sense in this way of Hume’s use of the burning coal example illuminates Hume’s interesting contributions to the notions of time, identity, and individuation.

Critiquing any practice, theory, or law, requires understanding the characteristics of the environment which created a need for this law. There are hundreds of different cultures in the world, and each one has its own set of norms, characteristics, and values. What in one country is perceived normal, ethical or unethical, right or wrong, may not be the same somewhere else in the world. The first civilizations begun in Africa and Europe many thousands of years ago when people were hunters and nomads, it is not unreasonable to suspect that many of those traits and characteristics have been socially transferred and/or inherited by future generations.

This paper contains a tutorial introduction to the ideas of geometric algebra, concentrating on its physical applications. We show how the definition of a “geometric product” of vectors in 2-and 3-dimensional space provides precise geometrical interpretations of the imaginary numbers often used in conventional methods. Reflections and rotations are analyzed in terms of bilinear spinor transformations, and are then related to the theory of analytic functions and their natural extension in more than two dimensions (monogenics), Physics is greatly facilitated by the use of Hestenes' spacetime algebra, which automatically incorporates the geometric structure of spacetime. This is demonstrated by examples from electromagnetism. In the course of this purely classical exposition many surprising results are obtained—results which are usually thought to belong to the preserve of quantum theory. We conclude that geometric algebra is the most powerful and general language available for the development of mathematical physics

This paper investigates Aquinas’s thought on the vis cogitativa, in order to determine whether Aquinas’s use of the inner sense of the vis cogitative is an embarrassment (as Dorothea Frede recently suggested), or whether it is rather an important element in Aquinas’s philosophy of mind that calls for serious study (as John Haldane argued several years ago in an ACPA plenary address). An examination of Aquinas’s theory of inner sense (as found in the Commentary on Aristotle’s De Anima) reveals that, for Aquinas, the vis cogitativa has two cognitive functions: (1) to be aware of an individual as an individual, and (2) to recognize an individual as a member of a kind. If Aquinas’ philosophy of mind did not include some account of the vis cogitativa, then it would not be able to accommodate what for Aquinas is a principal ontological category (namely, primary substance)

A correspondência entre J. Locke e W. Molyneux é conhecida principalmente como a fonte da famosa questão relativa ao que pode ser aprendido por um homem cego de nascença e que depois ganha a visão. Curiosamente, a correspondência oferece muito pouco esclarecimento sobre a questão. Outros tópicos importantes, entretanto, são apontados e explorados: entusiasmo pela obra de Malebranche, liberdade e responsabilidade, identidade pessoal, etc. Além disso, a correspondência oferece um conhecimento profundo da recepção histórica do Ensaio de Locke, como estes dois correspondentes, que tinham obviamente muita simpatia um para com o outro, discutem a tradução da obra de Locke, suas futuras edições, e as críticas feitas a ela por Synge, King, Sergeant, Stllingfleet, Leibniz, etc

The last third of the twentieth century witnessed a burst of energy by philosophers sorting out the many-faceted claims of natural law theory. Natural law theory, rooted in the Nicomachean Ethics with some modifications by the Stoics, was studied in the twentieth century mainly through the writings of Thomas Aquinas, followed by those of the Salamanca school, which was central to the Second Scholasticism. The horrors of the Second World War and the trials following it, with their charges of “crimes against humanity,” prompted a renewed interested by English-speaking philosophers in natural law jurisprudence. Analytic philosophers followed Elizabeth Anscombe’s urging to venture beyond the limits of early twentieth-century moral philosophy; Alasdair MacIntyre’s writings buttressed the return to ethical naturalism; John Finnis’s “new natural law” theory also contributed to this renaissance. These many avenues form the conceptual backdrop to the eight books reviewed in this essay

This paper employs the ideas of geometric algebra to investigate the physical content of Dirac's electron theory. The basis is Hestenes' discovery of the geometric significance of the Dirac spinor, which now represents a Lorentz transformation in spacetime. This transformation specifies a definite velocity, which might be interpreted as that of a real electron. Taken literally, this velocity yields predictions of tunnelling times through potential barriers, and defines streamlines in spacetime that would correspond to electron paths. We also present a general, first-order diffraction theory for electromagnetic and Dirac waves. We conclude with a critical appraisal of the Dirac theory

This paper investigates Aquinas’s thought on the vis cogitativa, in order to determine whether Aquinas’s use of the inner sense of the vis cogitative is an embarrassment , or whether it is rather an important element in Aquinas’s philosophy of mind that calls for serious study . An examination of Aquinas’s theory of inner sense reveals that, for Aquinas, the vis cogitativa has two cognitive functions: to be aware of an individual as an individual, and to recognize an individual as a member of a kind. If Aquinas’ philosophy of mind did not include some account of the vis cogitativa, then it would not be able to accommodate what for Aquinas is a principal ontological category

A new calculus, based upon the multivector derivative, is developed for Lagrangian mechanics and field theory, providing streamlined and rigorous derivations of the Euler-Lagrange equations. A more general form of Noether's theorem is found which is appropriate to both discrete and continuous symmetries. This is used to find the conjugate currents of the Dirac theory, where it improves on techniques previously used for analyses of local observables. General formulas for the canonical stress-energy and angular-momentum tensors are derived, with spinors and vectors treated in a unified way. It is demonstrated that the antisymmetric terms in the stress-energy tensor are crucial to the correct treatment of angular momentum. The multivector derivative is extended to provide a functional calculus for linear functions which is more compact and more powerful than previous formalisms. This is demonstrated in a reformulation of the functional derivative with respect to the metric, which is then used to recover the full canonical stress-energy tensor. Unlike conventional formalisms, which result in a symmetric stress-energy tensor, our reformulation retains the potentially important antisymmetric contribution

The spacetime algebra (STA) is the natural, representation-free language for Dirac's theory of the electron. Conventional Pauli, Dirac, Weyl, and Majorana spinors are replaced by spacetime multivectors, and the quantum σ- and γ-matrices are replaced by two-sided multivector operations. The STA is defined over the reals, and the role of the scalar unit imaginary of quantum mechanics is played by a fixed spacetime bivector. The extension to multiparticle systems involves a separate copy of the STA for each particle, and it is shown that the standard unit imaginary induces correlations between these particle spaces. In the STA, spinors and operators can be manipulated without introducing any matrix representation or coordinate system. Furthermore, the formalism provides simple expressions for the spinor bilinear covariants which dispense with the need for the Fierz identities. A reduction to2+1 dimensions is given, and applications beyond the Dirac theory are discussed

This paper examines the marketization of higher education. It takes the curriculum development for a degree sponsored by industry as a focus for exploring the involvement of industry and, more specifically, prospective employers, in shaping higher education provision. Empirical material gathered from a three and a half-year ethnographic study is used to illustrate how mundane promotional work associated with sponsored curricula operates to reconstitute higher education. It is shown how, in the process of introducing sponsored curricula into the university, a market relevance discourse is merged with traditional discourse to promote a new discursive order and thereby contribute to the reformation of university education. This hybrid discourse (of tradition and relevance) makes traditional resistance to the encroachment of "relevance" into university education more difficult to justify, and perhaps impossible to sustain. Nonetheless, it produces new antagonisms that provide future sites of resistance.