Values of some arbitrary parameters appearing in a geometrical model for elementary particles developed by MacGregor are compared with quantities associated with classical properties of blocks of charges±e interacting via Coulomb forces and hard-sphere repulsion only. If it is assumed that masses and radii of individual charged particles are related bymc 2=(2/3)(e 2/r) and thatmc 2=6.87 MeV, then the self-energiesM andM ± of 24-particle neutral blocks and 25-particle charged blocks composed of layers of three octagons and of a square sandwiched (...) by two distorted octagons satisfyM=70.1 MeV,M ±=74.2 MeV. The binding energyB nn of pairs of neutral blocks is given byB nn=4.9 MeV, and the maximum radius of the neutral block is 0.60 F. These four calculated parameter values lie within an average of 1% of the corresponding quantities for nonspinning quarks determined empirically by MacGregor. (shrink)

Why focus on the work of William Blake in a journal dedicated to religious ethics? The question is neither trivial nor rhetorical. Blake's work is certainly not in anyone's canon of significant texts for the study of Christian or, more broadly, religious ethics. Yet Blake, however subversive his views, sought to lay out a Christian vision of the good, alternated between prophetic denunciations of the world's folly and harrowing laments over the wreck of the world's promise, and wrote poetry as (...) if poetry might mend the world. Setting imagination against the calculations of reason and the comfort of custom, Blake's poems inspire questions about the relationship of ethics to prophecy, and open the possibility that ethics itself would be markedly enriched could it find a place for what Thomas J. J. Altizer has called Christian epic poetry. (shrink)

In this article, we present paradoxical findings from a formative evaluation research project that explores how preadolescent girls understand and feel about their bodies after participating in “Girls on the Run of Los Angeles County”, a girl-serving positive youth development program. Findings from pre/post test data show that girls’ body image improved after participation in GOTR LA, yet many girls also reported the dominant thin ideal and the importance of not being fat as key characteristics of strong and healthy bodies. (...) Ethnographic data suggest that institutional, organizational, and interactional factors contribute to these findings. Institutionalized fat-negative discourses translate into subtle messages regarding health and the body through organizational communications and through interactions between volunteer coaches and participants in ways that solidify dominant conceptions of the feminine body despite explicit programmatic intentions to challenge them. Theoretically, we draw from feminist cultural studies’ work on the gendered body to expand the dominant focus on institutionalized obsessions with thinness through the critical analysis of fat and anti-fat bias. On an applied level, our discussion of unintended program outcomes reveals the complexities in organizational interventions designed to influence girls’ body image. (shrink)

My colleague, Professor W. M. Lindsay, invites, or challenges, me to reply to his note on ‘Ciris’ ; I can but take him at his word.Professor Lindsay seeks to identify the two birds Haliaetus and Ciris, and finds the task an easy one; he identifies Ciris with a Tern confidently and categorically. We learn ‘from Gallus' epyllium … that it was a sea-bird with red legs, so rapid in flight that it always evaded the swoop of the sea-eagle. What can (...) this be but a tern?’. (shrink)

This controversial book professes to be a "critical account of Linguistic Philosophy and a study of Ideology." It is clearly written and abounds with entertaining aphorisms. Philosophically important objections against the Oxford School are developed in the first hundred pages. The rest is highly repetitious, and, aside from rhetorical effects and remarks on the psychology and sociology of the movement, contribute little to a "refutation" of Linguistic Philosophy. As an alternative to Linguistic Philosophy, the book only vaguely hints to a (...) "clean," "non-oblique," and "non-insinuated" form of naturalism.--A. P. D. M. (shrink)

A series of four lectures given in Athens during the author's tenure of a Fulbright Fellowship. The intention is to introduce Athenian public to three classical American philosophers, as well as to contemporary trends. The author sees interesting parallels between Emerson and the Byzantine Mystics and predicts that the interest of Americans in Ancient Greek philosophy will lead to closer studies of Byzantine philosophy. The chief defect of the book is its willingness to sacrifice content for coverage. Presentation is cursory (...) and often by terms which are misleading in themselves and particularly unfortunate when rendered into modern Greek.--. (shrink)

In refutation of Cajetan, the sixteenth century commentator who is still considered an authority on Thomas' doctrine of analogy, it is argued that "the analogy of names is, for St. Thomas, a logical intention, and in speaking of it we must observe the general rule that the logical and real orders must not be confused. St. Thomas does not see any peculiar significance of analogy for metaphysics--apart, i.e., from the significance it has for science and ordinary discourse." The thesis is (...) closely argued for and painstakingly documented.--A. P. D. M. (shrink)

The central insight of Darwin's Origin of Species is that evolution is an ecological phenomenon, arising from the activities of organisms in the 'struggle for life'. By contrast, the Modern Synthesis theory of evolution, which rose to prominence in the twentieth century, presents evolution as a fundamentally molecular phenomenon, occurring in populations of sub-organismal entities - genes. After nearly a century of success, the Modern Synthesis theory is now being challenged by empirical advances in the study of organismal development and (...) inheritance. In this important study, D. M. Walsh shows that the principal defect of the Modern Synthesis resides in its rejection of Darwin's organismal perspective, and argues for 'situated Darwinism': an alternative, organism-centred conception of evolution that prioritises organisms as adaptive agents. His book will be of interest to scholars and advanced students of evolutionary biology and the philosophy of biology. (shrink)

D. M. Armstrong; II—Does Knowledge Entail Belief?, Proceedings of the Aristotelian Society, Volume 70, Issue 1, 1 June 1970, Pages 21–36, https://doi.org/10.109.

(1998). The scope of selection: Sober and neander on what natural selection explains. Australasian Journal of Philosophy: Vol. 76, No. 2, pp. 250-264.

The extremely successful _Standard Model of Particle Physics_ allows one to define the so-called _Elementary Particles_. From another point of view, how can we think of them? What kind of a status can be attributed to Elementary Particles and their associated quantised fields? Beyond the unprecedented efficiency and reach of quantum field theories, the current paper attempts at understanding the nature of what these theories describe, the enigmatic reality of the quantum world.

In this important study D. M. Armstrong offers a comprehensive system of analytical metaphysics that synthesises but also develops his thinking over the last twenty years. Armstrong's analysis, which acknowledges the 'logical atomism' of Russell and Wittgenstein, makes facts the fundamental constituents of the world, examining properties, relations, numbers, classes, possibility and necessity, dispositions, causes and laws. All these, it is argued, find their place and can be understood inside a scheme of states of affairs. This is a comprehensive and (...) rigorously this-worldly account of the most general features of reality, argued from a distinctive philosophical perspective, and it will appeal to a wide readership in analytical philosophy. (shrink)

Argues that a set is the mereological whole of the singleton sets of its members (following Lewis's Parts of Classes), and that the singleton set of X is the state of affairs of X's having some unit-making property.

The Units of Selection debate is a dispute about the causes of population change. I argue that it is generated by a particular `dynamical'' interpretation of natural selection theory, according to which natural selection causes differential survival and reproduction of individuals and natural selection explanations cite these causes. I argue that the dynamical interpretation is mistaken and offer in outline an alternative, `statistical'' interpretation, according to which natural selection theory is a fancy kind of `bookkeeping''. It explains by citing the (...) statistical structure of a population and not by citing the causes of survival and reproduction. From the perspective of the statistical interpretation there is no substantive Units of Selection issue. (shrink)

Truths are determined not by what we believe, but by the way the world is. Or so realists about truth believe. Philosophers call such theories correspondence theories of truth. Truthmaking theory, which now has many adherents among contemporary philosophers, is the most recent development of a realist theory of truth, and in this book D. M. Armstrong offers the first full-length study of this theory. He examines its applications to different sorts of truth, including contingent truths, modal truths, truths about (...) the past and the future, and mathematical truths. In a clear, even-handed and non-technical discussion he makes a compelling case for truthmaking and its importance in philosophy. His book marks a significant contribution to the debate and will be of interest to a wide range of readers working in analytical philosophy. (shrink)

It is not certain when or by whom S0009838800011642_inline1 and S0009838800011642_inline2 were first technically distinguished as genus and species. The distinction does not appear in Plato's extant writings, whereas Aristotle seems to take it for granted in the Topics, which is usually regarded as among his earliest treatises. In his dialogues Plato seems able to use S0009838800011642_inline3 interchangeably to denote any group or division in a diairesis, including the group that is to be divided.

Analyzes difficult case in the theory of truthmaking. Account on the notion of a truthmaker by philosopher Bertrand Russell; Context of the correspondence theory of truth; Requisites of a truthmaker; Discussion on negative truths, universally quantified truths and modal truths.

In this important study D. M. Armstrong offers a comprehensive system of analytical metaphysics that synthesises but also develops his thinking over the last twenty years. Armstrong's analysis, which acknowledges the 'logical atomism' of Russell and Wittgenstein, makes facts the fundamental constituents of the world, examining properties, relations, numbers, classes, possibility and necessity, dispositions, causes and laws. All these, it is argued, find their place and can be understood inside a scheme of states of affairs. This is a comprehensive and (...) rigorously this-worldly account of the most general features of reality, argued from a distinctive philosophical perspective, and it will appeal to a wide readership in analytical philosophy. (shrink)

I argue that recent advances in developmental biology demonstrate the inadequacy of suborganismal mechanism. The category of the organism, construed as a ’natural purpose’ should play an ineliminable role in explaining ontogenetic development and adaptive evolution. According to Kant the natural purposiveness of organisms cannot be demonstrated to be an objective principle in nature, nor can purposiveness figure in genuine explain. I attempt to argue, by appeal to recent work on self-organization, that the purposiveness of organisms is a natural phenomenon (...) and, by appeal to the apparatus of invariance explanation, that biological purposiveness provides genuine, ineliminable biological explanations. (edited). (shrink)

Accepting James Gustafson's recent argument that right reading and valid criticism of H. R. Niebuhr's Christ and Culture must begin with an informed understanding of Niebuhr's utilization of the ideal-typical method, the author reviews characteristics of Weberian typologies and discusses the levels of criticism to which typologies are legitimately subject. Right appreciation of the text's genre exposes many criticisms of Christ and Culture to be misguided, but it also throws into relief those features of the text that cannot be accounted (...) for by that method, revealing the complexity of a text that advances both a comparative descriptive analysis and a bold theological argument. Recognition of this tension prompts the question whether the one so compromises or constrains the other that the enterprise does, indeed, fail as a whole, even though it remains intensely interesting in all its parts. (shrink)

Breaking new ground in the debate about the relation of mind and body, David Armstrong's classic text - first published in 1968 - remains the most compelling and comprehensive statement of the view that the mind is material or physical. In the preface to this new edition, the author reflects on the book's impact and considers it in the light of subsequent developments. He also provides a bibliography of all the key writings to have appeared in the materialist debate.

I want to defend a Combinatorialtheory of possibility. Such a view traces the very idea of possibility to the idea of the combinations – all the combinations which respect a certain simple form – of given, actual, elements. Combination is to be understood widely enough to cover the notions of expansion and contraction. The combinatorial idea is not new, of course. Wittgenstein gave a classical exposition of it in the Tractatus. Perhaps its charter is 3.4: ‘A proposition determines a place (...) in logical space. The existence of this logical place is guaranteed by the mere existence of the constituents’. There is a small additional combinatorial literature. I myself was converted to a combinatorial view by Brian Skyrms’ brief but fascinating article ‘Tractarian Nominalism.’. (shrink)

In this short text, a distinguished philosopher turns his attention to one of the oldest and most fundamental philosophical problems of all: How it is that we are able to sort and classify different things as being of the same natural class? Professor Armstrong carefully sets out six major theories—ancient, modern, and contemporary—and assesses the strengths and weaknesses of each. Recognizing that there are no final victories or defeats in metaphysics, Armstrong nonetheless defends a traditional account of universals as the (...) most satisfactory theory we have.This study is written for advanced students, but as Armstrong goes considerably beyond his earlier work on this topic, it will interest professional scholars as well. Carefully plotted and clearly written, Universals is both a paradigm of exposition and a case study on the value of careful analysis of fundamental issues in philosophy. (shrink)

The most compelling extant accounts of explanation casts all explanations as causal. Yet there are sciences, theoretical population biology in particular, that explain their phenomena by appeal to statistical, non-causal properties of ensembles. I develop a generalised account of explanation. An explanation serves two functions: metaphysical and cognitive. The metaphysical function is discharged by identifying a counterfactually robust invariance relation between explanans event and explanandum. The cognitive function is discharged by providing an appropriate description of this relation. I offer examples (...) of explanations from portfolio theory and population genetics that meet this characterisation. In each case the invariance relation holds between a statistical property of an ensemble and a change in structure of the ensemble. In neither case, however, does the statistical property cause the outcome it explains. There are genuine statistical, non-causal scientific explanations. (shrink)