An organic petrology evaluation and a determination of solid bitumen reflectance [Formula: see text] were completed for organic-rich Triassic Yanchang Formation mudrocks from the Ordos Basin, north-central China, as part of a larger investigation of “shale gas” resources. These data were integrated with information from Rock-Eval programmed pyrolysis to show that the samples are in the peak oil window of thermal maturity and that organic matter is dominated by solid bitumen with minor amounts of type III kerogen from vascular land (...) plants. Describing a “kerogen type” for these rocks based strictly on parameters determined from programmed pyrolysis is misleading because the original organic matter has converted to hydrocarbons, a large proportion of which may have been expelled into adjacent reservoir facies. However, based on the comparison with immature-early mature lacustrine mudrock and marine shale, we suggest that the original organic matter in the organic-rich samples examined for our study may have been type I/II kerogen with hydrogen index values of [Formula: see text] TOC. (shrink)
Our main objectives are to learn if pore-evolution models developed from marine mudrocks can be directly applied to lacustrine mudrocks, investigate what controls the different pore types and sizes of Chang 7 organic matter -rich argillaceous mudstones of the Upper Triassic Yanchang Formation, and describe the texture, fabric, mineralogy, and thermal maturity variation in the Chang 7 mudstones. Lacustrine mudstones from nine cored wells along a depositional dip in the southeastern Ordos Basin, China, were investigated. Helium porosimetry, nitrogen adsorption, and (...) field-emission scanning electron microscopy of Ar-ion milled samples were applied. Measured average total porosity of samples from a proximal to distal transect is higher than those from the two adjacent cored wells. This difference in porosity partly caused by differences in the clay mineral content implies that in the fluvial-deltaic-lacustrine depositional environment, reservoir quality can vary significantly in a short distance. Owing to the uneven distribution of the sample set from proximal to distal area, we mainly evaluate variations in the proximal setting. Results from nitrogen-gas adsorption experiments show that there are four distinct patterns of pore-size distribution within the Chang 7 member of the Yanchang Formation with no particular correlation with mineralogical composition and thermal maturity. The pore network within Chang 7 mudstones is dominated by OM-hosted pores, with a lesser abundance of interparticle and intraparticle pores. The size distribution of mineral-hosted pores within these mudstones is found to be closely related to the rock texture and fabric. Mudstones with well-sorted grains and a higher percentage of coarser grains have more abundant mineral pores. The sizes of OM-hosted pores in these compaction-dominated lacustrine mudstones were one to two orders of magnitude smaller than those in the marine mudstones that display abundant early cementation. (shrink)
Source-rock samples from the Upper Triassic Yanchang Formation in the Ordos Basin of China were geochemically characterized to determine variations in depositional environments, organic-matter source, and thermal maturity. Total organic carbon content varies from 4 wt% to 10 wt% in the Chang 7, Chang 8, and Chang 9 members — the three OM-rich shale intervals. The Chang 7 has the highest TOC and hydrogen index values, and it is considered the best source rock in the formation. Geochemical evidence indicates that (...) the main sources of OM in the Yanchang Formation are freshwater lacustrine phytoplanktons, aquatic macrophytes, aquatic organisms, and land plants deposited under a weakly reducing to suboxic depositional environment. The elevated [Formula: see text] sterane concentration and depleted [Formula: see text] values of OM in the middle of the Chang 7 may indicate the presence of freshwater cyanobacteria blooms that corresponds to a period of maximum lake expansion. The OM deposited in deeper parts of the lake is dominated by oil-prone type I or type II kerogen or a mixture of both. The OM deposited in shallower settings is characterized by increased terrestrial input with a mixture of types II and III kerogen. These source rocks are in the oil window, with maturity increasing with burial depth. The measured solid-bitumen reflectance and calculated vitrinite reflectance from the temperature at maximum release of hydrocarbons occurs during Rock-Eval pyrolysis and the methylphenanthrene index chemical maturity parameters range from 0.8 to [Formula: see text]. Because the thermal labilities of OM are associated with the kerogen type, the required thermal stress for oil generation from types I and II mixed kerogen has a higher and narrower range of temperature for hydrocarbon generation than that of OM dominated by type II kerogen or types II and III mixed kerogen deposited in the prodelta and delta front. (shrink)
Advertising and other forms of promotional activity have proliferated to such an extent that they may constitute a form of social pollution (Kitchen, 1994). The quantity and tone of communications to which consumers are exposed may have a subtle but pervasive effect on the social ecology of the developed world. Not only are Marketing Communications delivered in unprecedented quantities (Kitchen, 1994); but their tone is increasingly difficult to categorise in the Postmodern Marketing era (Brown, 1994). Notably, there has been very (...) little research conducted on this seeming "Leviathan" (Kitchen, 1994, after Hobbes, 1651) effect. Ethical concerns of professional marketing bodies such as the MRS and CIM are focussed on the conduct of professionals with regard to law and notions of moral decency in human exchange relationships (see MRS code of conduct, ASA and IBA guidelines). There is less emphasis on the ethical implications for society of the totality of Marketing Communication activities. This paper examines the distinctively Postmodern concept of the Communications Leviathan and discusses contemporary ethical issues, drawing perspectives where possible from Postmodern critical theory, Enlightenment philosophy, cognitive psychology and classical ethical works of Plato and Aristotle. (shrink)
Advertising presents special difficulties for business ethicists. Ads are trivial entertainments, yet advertising culture has been held up as a metaphor for a general moral degradation in the post‐modern epoch. Ads confuse us since they are a new and unfamiliar form of communicative discourse which we find difficult to place in an ethical category. This, mainly conceptual, paper attempts to explore how ethics in and of advertising may be subject to examination within a broadly social constructionist perspective. The paper sketches (...) out a view of social constructionism which draws significantly on the ‘turn to language’ in psychology. It then attempts to discuss how ads might work, or rather, as the paper suggests, how ads mean. The social constructionist view point entails a rejection of cognitivist schemes of advertising psychology in favour of a mutualist framework within which ads and consumers jointly construct meanings which are essentially indeterminate. This ontological perspective has implications for ethical treatments of the field. The notion of meaning making as a psychological principle leads the discussion into an initial consideration of how normative approaches to advertising ethics might be framed. The self regulatory system obtaining in the UK is offered as an appropriate example. An underlying theme of the paper is that discussions of ethics in relation to advertising cannot rest upon a simplistic cognitivist notion of how ads ‘work’ upon consumers’ minds. The paper tries to show that a broadly social constructionist approach may offer a richer scheme for examining advertising ethics in its local, mediated, indeterminate and socially constructed character. (shrink)
I explore some of the ways that assumptions about the nature of substance shape metaphysical debates about the structure of Reality. Assumptions about the priority of substance play a role in an argument for monism, are embedded in certain pluralist metaphysical treatments of laws of nature, and are central to discussions of substantivalism and relationalism. I will then argue that we should reject such assumptions and collapse the categorical distinction between substance and property.
How should we make choices when we know so little about our futures? L. A. Paul argues that we must view life decisions as choices to make discoveries about the nature of experience. Her account of transformative experience holds that part of the value of living authentically is to experience our lives and preferences in whatever ways they evolve.
Paul Faulkner presents a new theory of testimony - the basis of much of what we know. He addresses the questions of what makes it reasonable to accept a piece of testimony, and what warrants belief formed on that basis. He rejects rival theories and argues that testimonial knowledge and testimonially warranted belief are based on trust.
This major volume assembles leading scholars to address and explain the significance of Paul Ricoeur's extraordinary body of work. Ricoeur's work is of seminal importance to the development of hermeneutics, phenomenology, and ideology critique in the human sciences. Opening with three key essays from Ricoeur himself--on Europe, fragility and responsibility, and love and justice--this fascinating volume offers a tour of his work ranging across topics such as the hermeneutics of action, narrative force, and the other and deconstruction, while discussing (...) his work in the context of such contemporary thinkers as Heidegger, Levinas, Arendt, and Gadamer. Offering a very useful overview of Paul Ricoeur's enormous contribution to modern thought, Paul Ricoeur will be invaluable for students and academics across the social and human sciences and philosophy. (shrink)
The self-portrait of an intellectual reveals his childhood in Vienna, wounds at the Russian front in the German army, encounters with the famous, innumerable love affairs, four marriages, and refusal to accept a "petrified and tyrannical ...
The paper discusses some aspects of the relationship between Feyerabend and Kuhn. First, some biographical remarks concerning their connections are made. Second, four characteristics of Feyerabend and Kuhn's concept of incommensurability are discussed. Third, Feyerabend's general criticism of Kuhn's Structure of Scientific Revolutions is reconstructed. Forth and more specifically, Feyerabend's criticism of Kuhn's evaluation of normal science is critically investigated. Finally, Feyerabend's re-evaluation of Kuhn's philosophy towards the end of his life is presented.
In this article I explore the contemporary relationship of theology to philosophy through the call for a `renewed philosophy of being' by Pope John Paul II. I argue that in fact three understandings of being appear in this call: the first, phenomenological, appears as the bringing to description of the situation of contemporary nihilism, exemplified by Nietzsche both in his published works and his Nachlaß; the second, metaphysical, can be understood as the moralistic voice taken up by contemporary theologians (...) in addressing philosophy. This voice, I argue, is the voicing of the subjectivity of the (Cartesian) subject, and can be understood as the unfolding of the being-historical of the subject, explained in Martin Heidegger's use of the term `history of being' or Seinsgeschichte . This voice arises out of the `modernity' of the eighteenth century up to the present: it is a voice of extreme nihilism, but expressing itself as an imperative — not what `is', but what `should be'. This voice is also to be found in John Paul II. The third understanding is a possibility only arising out of the extreme nihilism encountered in the first two understandings of being. This understanding makes possible the genuine asking of the `question of being', the Seinsfrage, also laid out by Heidegger. As such, the question of being, when genuinely asked, alters the human comportment to God. Inasmuch as being presses in on man through a lack, an emptiness, that reasserts the fundamental orientation toward the future that unfolds from out of the being of beings, so the region of concealment and the withdrawal of the nihilating of the nothing, which is the region proper to divinity, can be understood and seen all over again. (shrink)
This article describes a theory of the computations underlying the selection of coordinated motion patterns, especially in reaching tasks. The central idea is that when a spatial target is selected as an object to be reached, stored postures are evaluated for the contributions they can make to the task. Weights are assigned to the stored postures, and a single target posture is found by taking a weighted sum of the stored postures. Movement is achieved by reducing the distance between the (...) starting angle and target angle of each joint. The model explains compensation for reduced joint mobility, tool use, practice effects, performance errors, and aspects of movement kinematics. Extensions of the model can account for anticipation and coarticulation effects, movement through via points, and hierarchical control of series of movements. References: 170. (shrink)
This collection of essays by philosophers and educationalists of international reputation, all published here for the first time, celebrates Paul Hirst's professional career. The introductory essay by Robin Barrow and Patricia White outlines Paul Hirst's career and maps the shifts in his thought about education, showing how his views on teacher education, the curriculum and educational aims are interrelated. Contributions from leading names in British and American philosophy of education cover themes ranging from the nature of good teaching (...) to Wittgensteinian aesthetics. The collection concludes with a paper in which Paul Hirst sets out his latest views on the nature of education and its aims. The book also includes a complete bibliography of works by Hirst and a substantial set of references to his writing. (shrink)
What kind of thing are we? Paul Snowdon's answer is that we are animals, of a sort. This view--'animalism'--may seem obvious but on the whole philosophers have rejected it. Snowdon argues that animalism is a defensible way of thinking about ourselves. Its rejection rests on the tendency when doing philosophy to mistake fantasy for reality.
Jean-Paul Sartre is one of the most famous philosophers of the twentieth century. The principal founder of existentialism, a political thinker and famous novelist and dramatist, his work has exerted enormous influence in philosophy, literature, politics and cultural studies. Jean-Paul Sartre: Basic Writings is the first collection of Sartre's key philosophical writings and provides an indispensable resource for readers of his work. Stephen Priest's clear and helpful introductions make the volume an ideal companion to those coming to Sartre's (...) writing for the first time. (shrink)
Paul Helm presents a new, expanded edition of his much praised 1988 book Eternal God, which defends the view that God exists in timeless eternity. Helm argues that divine timelessness is grounded in the idea of God as creator, and that this alone makes possible a proper account of divine omniscience.
Within traditional decision theory, common decision principles - e.g. the principle to maximize utility -- generally invoke idealization; they govern ideal agents in ideal circumstances. In Realistic Decision Theory, Paul Weirch adds practicality to decision theory by formulating principles applying to nonideal agents in nonideal circumstances, such as real people coping with complex decisions. Bridging the gap between normative demands and psychological resources, Realistic Decision Theory is essential reading for theorists seeking precise normative decision principles that acknowledge the limits (...) and difficulties of human decision-making. (shrink)
The paper contains two yet unknown letters that Feyerabend wrote to Kuhn in 1960 or 1961 on a draft of The Structure of Scientific Revolutions. In these letters, Feyerabend criticises both details of Kuhn's book and its general direction. The letters anticipate many of the arguments that were put forward in the public controversy against Kuhn's position, including some of the (numerous) misunderstandings. Feyerabend's assertions and arguments are very characteristic of his position in the early sixties.
The Limits of Free Will presents influential articles by Paul Russell concerning free will and moral responsibility. The problems arising in this field of philosophy, which are deeply rooted in the history of the subject, are also intimately related to a wide range of other fields, such as law and criminology, moral psychology, theology, and, more recently, neuroscience. These articles were written and published over a period of three decades, although most have appeared in the past decade. Among the (...) topics covered: the challenge of skepticism; moral sentiment and moral capacity; necessity and the metaphysics of causation; practical reason; free will and art; fatalism and the limits of agency; moral luck, and our metaphysical attitudes of optimism and pessimism. (shrink)
In recent years the doctrine that God exists in a timeless eternity has achieved something of the status of philosophical heterodoxy, if not of downright heresy. The arguments against the idea of God's timeless eternity come from two sources. The first of these is Professor Kneale's paper ‘Time and Eternity in Theology’ in which, alluding to the famous definition of eternity by Boethius as ‘the complete possession of eternal life at once’ Professor Kneale confesses ‘I can attach no meaning to (...) the word “life” unless I am allowed to suppose that what has life acts… life must at least involve some incidents in time and if, like Boethius, we suppose the life in question to be intelligent, then it must involve also awareness of the passage of time’. (shrink)
_Ideology and Utopia_ argues that ideologies are mental fictions whose function is to veil the true nature of a given society. They originate unconsciously in the minds of those who seek to stabilise a social order. Utopias are wish dreams that inspire the collective action of opposition groups which aim at the entire transformation of society. Mannheim shows these two opposing elements to dominate not only our social thought but even unexpectedly to penetrate into the most scientific theories in philosophy, (...) history and the social sciences. This new edition contains a new preface by Bryan S. Turner which describes Mannheim's work and critically assesses its relevance to modern sociology. The book is published with a comprehensive bibliography of Mannheim's major works. (shrink)
Paul Elbourne explores the complex nature of meaning in crystal clear language. He draws on approaches developed in linguistics, philosophy, and psychology - assuming a knowledge of none of them - in a manner that will appeal to everyone interested in this essential element of human psychology and culture.