Physical arguments stemming from the theory of black-hole thermodynamics are used to put constraints on the dynamics of closed-string tachyon condensation in Scherk–Schwarz compactifications. A geometrical interpretation of the tachyon condensation involves an effective capping of a noncontractible cycle, thus removing the very topology that supports the tachyons. A semiclassical regime is identified in which the matching between the tachyon condensation and the black-hole instability flow is possible. We formulate a generalized correspondence principle and illustrate it in several different circumstances: (...) an Euclidean interpretation of the transition from strings to black holes across the Hagedorn temperature and instabilities in the brane-antibrane system. (shrink)

This article presents the main features of the work of Domenico Vandelli (1735-1816), an Italian-born man of science who lived a large part of his life in Portugal. Vandelli's scientific interests as a naturalist paved the way to his activities as a reformer and adviser on economic and financial issues. The topics covered in his writings are similar to those discussed by Linnaeus, with whom Vandelli corresponded. They clearly reveal that the scientific preparation indispensable for a better knowledge of natural (...) resources was also a fundamental condition for correctly addressing problems of efficiency in their economic allocation. The key argument put forward in this article is that the relationship between natural history and the agenda for economic reform and development deserves to be further analysed. It is indeed a central element in the emergence of political economy as an autonomous scientific discourse during the last decades of the eighteenth century. (shrink)

In this chapter, Mackie presents a defence of Locke against Berkeley's attack on abstraction. It is argued that Locke's theory of ideas primarily concerns our ability to employ words and statements. Locke's theory concerning ideas of numbers is criticized. Three theories of universals are considered: realism, nominalism, and conceptualism; it is concluded, however, that the notion of there being distinct things with which we connect general words with particular things is mistaken. Mackie instead proposes a theory of general words being (...) ‘annexed’ to features of things. (shrink)

Mackie sets out Locke's general theory of identity and raises some difficulties with the account. Hume's claim that the notion of identity is a fiction is critically assessed. Mackie argues that there is a relation between Locke's notion of identity and the notion that individuals can have essences. He presents an argument for what he calls Locke's thesis about the relativity of identity. The relevance of Kripke's discussion of identity and named individuals is examined. It is argued that Locke's thesis (...) about the relativity of identity can provide a means of understanding some problems concerning identity through time. (shrink)

Mackie attempts to revise Locke's theory of the identity of persons. Locke's equation of personal identity with the unity of consciousness is set out. Mackie examines various objections to Locke's theory and his use of puzzle cases is highlighted. Recent theories of personal identity, such as Parfit's, are critically discussed. Mackie suggests that the equation of personal identity with the continuity of neurophysiological structure would resolve some of the difficulties associated with an account of personal identity.

Mackie outlines Locke's representationalist theory. He analyses the relation between representationalism and the picture theory of ideas. The theory's relation to the veil of perception doctrine is also critically examined. Mackie criticizes the verificationist theory of meaning and instead argues that ideas should be understood as intentional objects. Mackie introduces and defends a version of realism, which he calls ‘common‐sense realism’.

Three long papers are collected here which constitute Chomsky’s major theoretical work on syntax and semantics subsequent to the "standard theory" of Aspects of the Theory of Syntax. Since 1965, transformational-generative linguists have suggested various changes in "standard theory," centering on the relationship between the syntactic and semantic components in natural language grammars. In these papers Chomsky explains several specific problems that require the extension of standard theory and he criticizes the proposals and arguments of the generative semanticists, attempting to (...) show that many of the specific features of language that are claimed to support the generativist position are as well or better explained by extended standard theory, and emphasizing that most of the generativist’s proposals turn out to be mere "notational variants," evidentially indistinguishable from extended standard theory. Aside from appealing to particular data favoring his "lexicalist" defense of syntactic deep structure, Chomsky makes a Popperean appeal that his position is preferable because it is more constraining and more falsifiable. (shrink)

In this book, Katz details, extends, sharpens, and, in comparatively minor ways, amends the notion of semantic theory that he has maintained through the last decade. Philosophers will be interested in the views that Katz derives about logic, analyticity, opacity, natural language, and intensionality; and the main focus is on these topics throughout the book, though considerable attention is given the technical apparatus of semantic markers, projection rules, and so on. The work concludes with a chapter that criticizes the equation (...) of deep syntactic structure and semantico-logico form recently proposed by the "generative semanticists." Separate chapters are devoted to the logic of questions and "temporal specification, state, process, and the converse relation;" but these chapters are taken up with the notion of presupposition and difference in meaning, and so relate to the basic argument of the book quite directly. This is a complicated, forthright, and imaginative work, though some readers may find it puzzlingly incomplete on a few points. (shrink)

This attractive book introduces the central issues of semantics through a judicious mixture of the exposition of views and an attempt to argue for some of these views. Kempson has a reasonable grasp of what philosophers and linguists have to say about these issues, and some insight into the misunderstandings that occur between philosophers and linguists when they discuss these issues. Each of the eleven chapters ends with an annotated bibliography. This book would be a good backbone for a course (...) on semantics. (shrink)

The first four chapters of this book first appeared, separately and within the last couple of years, as invited contributions to collections; the fifth and sixth chapters, which are probably the best and certainly the only sharply focused ones, appeared in journals ; the last two chapters have not previously appeared. Ziff writes that these pieces were designed to "yield a composite function with which to begin a mapping of a particular domain. The fundamental problem is to understand how one (...) understands what is said... [a show of continuity and completeness would be out of place but]... The attempt here is rather to delineate a relevant set of parameters worthy of further investigation.". (shrink)

On 6 September 1966, the prime minister of South Africa, Dr HF Verwoerd was killed by Mr Tsafendas, a Portuguese national of Greek descent, in parliament by stabbing him in the chest. Mr Tsafendas was a messenger in parliament. At the enquiry trial of Mr Tsafendas, he was found unfit to stand trial on the ground that he suffered from schizophrenia. The psychiatric evidence during the enquiry trial was reviewed and discussed under the following headings: Diagnosis of schizophrenia; Consideration of (...) cultural factors in forensic psychiatric settings; Delusional infestation v. extreme overvalued beliefs; Simulation of psychosis; Ethical considerations in criminal capacity and trial competency assessments. Lessons from the Mr Tsafendas enquiry trial for forensic psychiatrists where a defendant previously diagnosed with schizophrenia commits a prominent political murder, are summarised. It is emphasised that the personhood of an accused referred for forensic observation should be respected and protected, instead of focusing exclusively on a specific diagnosis. (shrink)

Chris Tucker's paper on the hiddenness argument seeks to turn aside a way of defending the latter which he calls the value argument. But the value argument can withstand Tucker's criticisms. In any case, an alternative argument capable of doing the same job is suggested by his own emphasis on free will.

A biblical approach to reconciling God’s sovereignty with creaturely responsibility should avoid the extremes of global occasionalism and completely autonomous creatures. This paper evaluates the standard intermediary solutions offered by conservationists and concurrentists. It argues that while each contributes insights which a satisfactory account should retain, none is fully adequate. Even Leibniz’s sophisticated response, which accounts for providence, miracles, and moral responsibility, unacceptably abridges creaturely power to implement decisions. My alternative proposal seeks to explain how creatures can retain full responsibility (...) for their actions even though God reserves the right to override creaturely power with His greater power. (shrink)

Mark McCreary has argued that I cannot consistently advance both the hiddenness argument and certain arguments for religious scepticism found in my book The Wisdom to Doubt . This reaction was expected, and in WD I explained its shortsightedness in that context. First, I noted how in Part III of WD , where theism is addressed, my principal aim is not to prove atheism but to show theists that they are not immune from the scepticism defended in Parts I and (...) II. To the success of this aim, McCreary's arguments are not so much as relevant, for a thoroughgoing scepticism embracing even the hiddenness argument is quite compatible with its success. But I also explained how someone convinced that the hiddenness argument does prove atheism escapes the grip of religious scepticism because of that argument's reliance on apparent conceptual truths. McCreary's critique obscures this point but does not defuse it. (shrink)

Lanczos, C. Einstein's path from special to general relativity.--Balazs, N. L. The acceptability of physical theories: Poincaré versus Einstein.--Ellis, G. F. R. Global and non-global problems in cosmology, by G. F. R. Ellis and D. W. Sciama.--Ehlers, J. The geometry of free fall and light propagation, by J. Ehlers, F. A. E. Pirani and A. Schild.--Trautman, A. Invariance of Lagrangian systems.--Penrose, R. The geometry of impulsive gravitational waves.--Exact solutions of the Einstein-Maxwell equations for an accelerated charge.--Taub, A. H. Plane-symmetric similarity (...) solutions for self-gravitating fluids.--Robinson, I. Equations of motion in the linear approximation, by I. Robinson and J. R. Robinson.--Florides, P. W. Rotating bodies in general relativity.--Chandrasekhar, S. A limiting case of relativistic equilibrium.--Israel, W. The relativistic Boltzmann equation.--Thompson, W. B. The self-consistent test-particle approach to relativistic kinetic theory. (shrink)

This study empirically examines the association between certain director characteristics and the extent of voluntary audit committee disclosure in annual reports. Results suggest that Singapore's publicly traded firms are more likely to voluntarily disclose audit committee related information as: the number of board members increases; different individuals occupy the roles of CEO and board chairperson; and the proportion of independent directors serving on the board increases. Findings, however, fail to show any association between the amount of voluntary audit committee disclosure (...) and the percentage of executive directors' ownership. Documented findings are of interest and benefit to various parties including regulators, corporate governance reformists, and corporate management. For instance, findings imply that a positive by-product of implementing major corporate governance reforms currently championed by corporate governance reformists will be an increase in audit committee disclosures. As a result, there will be less pressure on regulators to develop, introduce, and enforce mandatory audit committee disclosures that may be potentially intrusive to a firm's management. (shrink)

The late John L. Mackie, formerly of University College, Oxford.

O livro almeja ser representativo nos principais debates contemporâneos, oferecendo uma visão panorâmica sobre o campo na atualidade e permitindo-se aprofundar em algumas discussões selecionadas.O ambiente não pode ser reduzido ao “meio ambiente”, à natureza não humana. Ele não é meramente algo que “nos envolve”, um envoltório: o ambiente somos também nós, seres humanos, histórica e culturalmente situados. Quanto aos territórios, eles se estabelecem em íntima conexão com os ambientes em suas dimensões paisagística e material, quer sejam os processos geoecológicos, (...) quer sejam as formas e as dinâmicas socialmente produzidas. Analisar os territórios significa examinar como, a cada momento, os ambientes, seus recursos e significados são disputados e viram objeto de conflitos.O público-alvo principal são os estudantes dos últimos anos da graduação, além daqueles em nível de pós-graduação, de todas as áreas que lidam com problemas e conflitos ambientais. Afora os pesquisadores iniciantes e os jovens universitários em geral, porém, podemos presumir que profissionais experientes também poderão tirar proveito do material de diversos capítulos. É razoável, por fim, nutrir a expectativa de que muito do que este livro contém possa (retro)alimentar o ativismo ambiental crítico e a prática de combater as iniquidades e as distorções que se acumulam em nossas sociedades, principalmente as muitas situações de flagrante injustiça ambiental. (shrink)

In Part 1 of this book, the first full-length treatment of its topic, J. L. Schellenberg argues that when we notice how.

1. Causal knowledge is an indispensable element in science. Causal assertions are embedded in both the results and the procedures of scientific investigation. 2. It is therefore worthwhile to investigate the meaning of causal statements and the ways in which we can arrive at causal knowledge.

Providing an original and systematic treatment of foundational issues in philosophy of religion, J. L. Schellenberg's new book addresses the structure of..

* This is a fragment of J. L. Schellenberg’s paper “Divine Hiddenness and Human Philosophy” originally published in Adam Green and Eleonore Stump, Hidden Divinity and Religious Belief, 23–25, 28. Reprinted by permission of the author.

J.L. Schellenberg offers a path to a new kind of religious outlook. Reflection on our early stage in the evolutionary process leads to skepticism about religion, but also offers a new answer to the problem of faith and reason, and the possibility of a new, evolutionary form of religion.