There is a certain measure of perplexity concerning the significance of endopolyploidy. It seems that this results from a narrow frame of reference from which investigators view the phenomenon; that is, a predilection for emphasizing the specialized functional aspect of endopolyploidy as it operates in species at the present time overrides any consideration of the rôle that this state may play in the life of a species in its encounter with the forces of natural selection either in the past or (...) in the future.There does not seem to be any obvious relationship between the degree of endopolyploidy that a species can exhibit and either its basic DNA content or the structure of its nucleus. The significance of endopolyploidy may reside not so much in any specialized function that the condition can support, but rather in the properties that are consequent upon the endopolyploid condition itself and which are distinct from those that apply to diploid cells. Some of the properties of the endopolyploid state, and examples of their manifestation in plants and animals, are discussed. The conclusion is that these properties have a potential that opens possibilities for new paths of development and serves as a factor upon which natural selection can operate. (shrink)

The levels that compose biological hierarchies each have their own energetic, spatial and temporal structure. Indeed, it is the discontinuity in energy relationships between levels, as well as the similarity of sub-systems that support them, that permits levels to be defined. In this paper, the temporal structure of living hierarchies, in particular that pertaining to Human society, is examined. Consideration is given to the period defining the lifespan of entities at each level and to a periodic event considered fundamental to (...) the maintenance of that level. The ratio between the duration of these two periods is found to be approximately 2.5 × 104. A similar relationship is found when lower, non-living levels of molecules and atoms are considered. This suggests that there is a constant factor of amplification between analogous periodic events at successive levels of the Human hierarchy. (shrink)

In this paper I defend an account of the nature of propositional content according to which the proposition expressed by a declarative sentence is a certain type of action a speaker performs in uttering that sentence. On this view, the semantic contents of proper names turn out to be types of reference acts. By carefully individuating these types, it is possible to provide new solutions to Frege’s puzzles about names in identity- and belief-sentences.

The visual arts operated as a touchstone for French philosopher Jean-François Lyotard, influencing his thinking on everything from epistemology to politics. Building on the recent publication of a bilingual, six-volume edition of his writings on contemporary art and artists, this special issue of_ Cultural Politics_ provides a focus on Lyotard’s aesthetics. The issue includes a review of Lyotard’s writings on art, a discussion of his early figural aesthetics, and an essay on Lyotard’s little-known work, _Pacific Wall_, as well as two (...) essays on Lyotard and music. Two previously untranslated works by Lyotard himself are also featured: the influential article “Argumentation and Presentation: The Crisis of Foundations” and the interview “What to Paint?,” given at the time of the publication of the book of the same name. Painter Leon Phillips, whose work embodies many of the attributes of painting that were most important to Lyotard, is the featured artist for the issue. Throughout, the contributors argue for the primary importance of aesthetics in understanding Lyotard’s thought. Peter W. Milne is Assistant Professor in the Department of Aesthetics at Seoul National University. (shrink)

_Current Issues in Business Ethics_ analyzes the questions which underlie business activities, arguing that the prime object for a legitimate business must be sustainability. It also looks at the issues between individuals and business and asks whether businesses can support their employees as an alternative to family and church. Finally it assesses the impact of most recent trends in business looking at: * the activities of multinational companies * the changing gender balance * privatization * the loss of power of (...) the trade unions. (shrink)

ABSTRACTWhile Lyotard's first book was an introduction to phenomenology, most of the work that follows can be said to openly challenge the limits of phenomenological analysis. This is particularly...

Building on self-professed perspectival approaches to both scientific knowledge and causation, I explore the potentially radical suggestion that perspectivalism can be extended to account for a type of objectivity in science. Motivated by recent claims from quantum foundations that quantum mechanics must admit the possibility of observer-dependent facts, I develop the notion of ‘perspectival objectivity’, and suggest that an easier pill to swallow, philosophically speaking, than observer-dependency is perspective-dependency, allowing for a notion of observer-independence indexed to an agent perspective. Working (...) through the case studies of colour perception and causal perspectivalism, I identify two places within which I claim perspectival objectivity is already employed, and make the connection to quantum mechanics through Bohr’s philosophy of quantum theory. I contend that perspectival objectivity can ensure, despite the possibility of perspective-dependent scientific facts, the objectivity of scientific inquiry. (shrink)

This article surveys recent literature on Wittgenstein's "Rule-following considerations" most notably S. Kripke's, C. McGinn's, and G.P. Baker's and P.M.S. Hacker's contributions. I argue that the normativity requirement in rule-following is to be located not in transtemporal but interpersonal sameness of meaning, and that the community-view is false when viewed as a condition on correct rule-following, but true when viewed as providing criteria for the possibility of rule-following.

Name der Zeitschrift: Semiotica Jahrgang: 2016 Heft: 213 Seiten: 457-472.

I examine the metaphysical issue of the nature of color. I argue that there are two distinct ranges of colors, namely, physical colors, which are disjunctive monadic physical properties of physical objects, and mental colors, which are properties of neural processes. ;A pair of claims provide the motivation for subjectivist and dispositionalist proposals about the nature of color, proposals which I reject. The first claim holds that a description of colors according to our ordinary experience of color provides a specification (...) of some aspects of the nature of color. The second holds that our ordinary experience of color provides access to the nature of color. ;In chapter 1, I argue that visual experiences have mental colors, neural properties which importantly determine our color categories. However, I reject C. L. Hardin's and James A. McGilvray's arguments for the subjectivist claim that the colors we attribute to physical objects are mental colors. ;In chapter 2, I show that Paul A. Boghossian and J. David Velleman's arguments in support of subjectivism rely on the assumption that visual experience provides unqualified access to the nature of color. I argue, however, that objections to their projectivism about color perception provide strong reasons to reject subjectivism as well as their assumption that visual experience provides unqualified access to the nature of color. ;In chapters 3 and 4, I examine Mark Johnston's and Christopher Peacocke's dispositionalist proposals about the nature of physical colors, which are founded on the claim that ordinary visual experience provides access to an aspect of the nature of color. I undercut dispositionalism by rejecting their arguments for the claim that ordinary visual experience provides such access. ;In chapter 5, I show that Evan Thompson's proposal that the colors of objects are relations between properties of perceivers and objects assumes that a description of color according to our ordinary experience specifies some aspects of the nature of color. I reject this assumption by distinguishing between mental color and physical color. I conclude that rather than specifying the nature of color, descriptions of colors according to our ordinary experience merely serve to fix the reference of color terms. (shrink)

The problem of the nature of color is typically put in terms of the following question about the intentional content of visual experiences: what’s the nature of the property we attribute to physical objects in virtue of our visual experiences of color? This problem has proven to be tenacious largely because it’s not clear what the constraints are for an answer. With no clarity about constraints, the proposed solutions range widely, the most common dividing into subjectivist views which hold that (...) attributed colors are mental properties or mental events} and a variety of realist views, which hold that colors are properties of physical objects. These realist views, in turn, divide into views that hold that attributed colors are dispositions of physical objects to produce color experiences (dispositionalism),° nondispositional relations between objects and perceivers (the relational view)," physical properties of physical objects (physicalism),‘ or sui generis properties of physical objects (primitivism and impressionism).‘ I’ll examine a proposed constraint which Mark Johnston (1992) calls Revelation. According to Revelation, the appearance of color in our ordinary visual experience provides us with unqualified access to the nature of color. While every proposal about the nature of color must take a stand on how the.. (shrink)

Despite attempts to apply causal modeling techniques to quantum systems, Wood and Spekkens argue that any causal model purporting to explain quantum correlations must be fine tuned; it must violate the assumption of faithfulness. This paper is an attempt to undermine the reasonableness of the assumption of faithfulness in the quantum context. Employing a symmetry relation between an entangled quantum system and a “sideways” quantum system consisting of a single photon passing sequentially through two polarizers, I argue that Wood and (...) Spekkens’s analysis applies equally to this sideways system also. As a result, we must either reject a causal explanation in this single photon system, or the sideways system must be fine tuned. If the latter, a violation of faithfulness in the ordinary entangled system may be more tolerable than first thought. Thus, extending the classical “no fine-tuning” principle of parsimony to the quantum realm may be too hasty. (shrink)

There is ample evidence that speakers’ linguistic knowledge extends well beyond what can be described in terms of rules of compositional interpretation stated over combinations of single words. We explore a range of multiword constructions to get a handle both on the extent of the phenomenon and on the grammatical constraints that may govern it. We consider idioms of various sorts, collocations, compounds, light verbs, syntactic nuts, and assorted other constructions, as well as morphology. Our conclusion is that MWCs highlight (...) the central role that grammar plays in licensing MWCs in the lexicon and the creation of novel MWCs, and they help to clarify how the lexicon articulates with the rest of the grammar. (shrink)

The different interpretations of quark mixing involved in weak interaction processes in the Standard Model and the Generation Model are discussed with a view to obtaining a physical understanding of the Cabibbo angle and related quantities. It is proposed that hadrons are composed of mixed-quark states, with the quark mixing parameters being determined by the Cabibbo-Kobayashi-Maskawa matrix elements. In this model, protons and neutrons contain a contribution of about 5% and 10%, respectively, of strange valency quarks.

I take issue with Saunders & van Brakel's claim that neural processes play no interesting role in determining color categorizations. I distinguish an aspect of color categorization, namely, color discrimination, from other aspects. The law of trichromacy describes conditions under which physical properties cannot be discriminated in terms of color. Trichromacy is explained by properties of neural processes.

In 1736, an 80-year-old Edmond Halley, dignified by the academic robes of his alma mater, Queens College Oxford, sat down at the brush of transplanted Swedish artist Michael Dahl for his final official portrait.1 By the time he posed for Dahl, Halley occupied a rank of distinction among practical philosophers of the early Enlightenment. His manifold achievements included authorship of the first catalogue of stars in the Michael Dahl, “Dr E Halley, Aged 80.” © The Royal Society. southern hemisphere, the (...) laying of actuarial foundations for life insurance and annuities, his correct prediction of the return in 1758, 1835, and 1910 of a bright periodic comet that today bears .. (shrink)

In 1913 Wittgenstein raised an objection to Russell’s multiple relation theory of judgment that eventually led Russell to abandon his theory. As he put it in the Tractatus, the objection was that “the correct explanation of the form of the proposition, ‘A makes the judgement p’, must show that it is impossible for a judgement to be a piece of nonsense. (Russell’s theory does not satisfy this requirement,” (5.5422). This objection has been widely interpreted to concern type restrictions on the (...) constituents of judgment. I argue that this interpretation is mistaken and that Wittgenstein’s objection is in fact a form of the problem of the unity of the proposition. (shrink)

Despite the compelling subjective experience of executive self-control, we argue that ‘consciousness’ contains no top-down control processes. We propose that ‘consciousness’ involves no executive, causal or controlling relationship with any of the familiar psychological processes conventionally attributed to it. In our view all psychological processing and psychological products are non-conscious. In particular, we argue that all ‘contents of consciousness’ are generated by and within non-conscious brain systems in the form of a continuous self-referential personal narrative that is not directed or (...) influenced in any way by the ‘experience of consciousness’. This continuously updated personal narrative arises from selective ‘internal broadcasting’ of outputs from non-conscious executive systems that have access to all forms of cognitive processing, sensory information and motor control. The personal narrative provides information for storage in autobiographical memory and is underpinned by constructs of self and agency, also created in non-conscious systems. The experience of consciousness, is seen as a passive accompaniment to the non-conscious processes of internal broadcasting and the creation of the personal narrative. In this sense personal awareness is analogous to the rainbow which accompanies physical processes in the atmosphere but exerts no influence over them. Though at an individual level it is an end-product created by non-conscious executive systems, the personal narrative serves the powerful evolutionary function of enabling individuals to communicate (externally broadcast) the contents of internal broadcasting. This in turn allows the recipients to generate potentially adaptive strategies, such as predicting the behavior of others and underlies the development of social and cultural structures, that promote species survival. Consequently, it is the capacity to communicate to others the contents of the personal narrative that confers an evolutionary advantage – not the experience of consciousness (personal awareness) itself. (shrink)

Wood and Spekkens argue that any causal model explaining the EPRB correlations and satisfying the no-signalling constraint must also violate the assumption that the model faithfully reproduces the statistical dependences and independences—a so-called ‘fine-tuning’ of the causal parameters. This includes, in particular, retrocausal explanations of the EPRB correlations. I consider this analysis with a view to enumerating the possible responses an advocate of retrocausal explanations might propose. I focus on the response of Näger, who argues that the central ideas of (...) causal explanations can be saved if one accepts the possibility of a stable fine-tuning of the causal parameters. I argue that in light of this view, a violation of faithfulness does not necessarily rule out retrocausal explanations of the EPRB correlations. However, when we consider a plausible retrocausal picture in some detail, it becomes clear that the causal modelling framework is not a natural arena for representing such an account of retrocausality. _1_ Causal Models, Quantum Mechanics, and Faithfulness _2_ Fine-Tuning _2.1_ Fine-tuning in a retrocausal model _3_ Possible Responses _4_ Quantum Causal Models and Retrocausality _4.1_ A more detailed retrocausal account _4.2_ A model of the EPRB probabilities _4.3_ Mapping to a causal model _5_ Conclusion. (shrink)

In Jackendoff's Parallel Architecture, the well-formed expressions of a language are licensed by correspondences between phonology, syntax, and conceptual structure. I show how this architecture can be used to make sense of the existence of parasitic gap constructions. A parasitic gap is one that is rendered acceptable because of the presence of another gap in the same sentence. Compare *a person whoi everyone who talks to ti likes Chris, which shows an illicit extraction from a relative clause, and a person (...) whoi everyone who talks to pgi likes ti, which shows a parasitic gap in the relative clause. Languages differ in terms of the range of configurations in which they allow parasitic gaps; these configurations appear to form a hierarchy. These observations raise some fundamental questions: Why do parasitic gaps exist at all? Why are different syntactic configurations possible for P-gaps and why just these configurations? Why is there a parasitic gap hierarchy? The answers that I propose make crucial use of constructional overgeneralization of across-the-board extraction in coordinate constructions, formulated straightforwardly in the framework of Jackendoff's Parallel Architecture. (shrink)

Dynamical Grammar explores the consequences for language acquisition, language evolution, and linguistic theory of taking the underlying architecture of the language faculty to be that of a complex adaptive dynamical system. It contains the first results of a new and complex model of language acquisition which the authors have developed to measure how far language input is reflected in language output and thereby get a better idea of just how far the human language faculty is hard-wired.

All nursing courses in the UK include ethics in the curriculum, although there is considerable variation in the content of ethics courses and the teaching methods used to assist the acquisition of ethical reasoning. The effectiveness of ethics courses continues to be disputed, even when the perceptions and needs of students are taken into account in their design. This longitudinal study, carried out in the UK, but with implications for nurse education in other developed countries, explored the ethical understanding of (...) nursing students and changes in their understanding and approaches to practice over their four years of training (1995-1999). The data collection tools were a questionnaire originally piloted prior to the 1995 study, from which the present study developed, and five vignettes describing ethical dilemmas in health care also piloted in 1995. Students’ thinking progressed as they became more mature as individuals and professionals, although this progress was not necessarily in the direction of greater certainty. Suggestions are made to help nurse educators to maximize the effectiveness of ethics courses in transmitting the skills of ethical reasoning. (shrink)

Included in the acute response of lowlanders exposed to reduced oxygen availability is an elevated red blood cell count due to increased erythropoietin (Epo) synthesis. According to current thinking, hypoxia is “sensed” by hydroxylases that permit Hypoxia Inducible Factor 1α (HIF‐1α) to complex with HIF‐1β to form a transcriptional activator (HIF‐1) that drives expression of hypoxia‐sensitive genes (such as EPO) under hypoxic conditions. In altitude‐adapted Andean natives, the Epo hypoxic response may be blunted; however, our data indicate that the DNA (...) sequences of the genes encoding Epo (including the 3′ regulatory region) and HIF‐1α appear to be conserved. Hence, adaptive changes in the Andean hypoxic response are not a consequence of changes in the primary sequence of these proteins or of known transcriptional regulatory domains of EPO. These results suggest that the altered erthropoietic response in Andean natives reflects adaptations in hypoxia sensing, rather than hypoxia response, mechanisms. BioEssays 25:515–519, 2003. © 2003 Wiley Periodicals, Inc. (shrink)