Burnshaw treats virtually every aspect of poetry, but devotes a major theoretical effort to developing a biologically grounded explanation of both creation and the esthetic experience. He extends his theory of creation to every art form, including the fabrication of scientific theories; the rest of the study is devoted exclusively to poetry. Burnshaw claims to be following the lead of John Keble, who described poetry as that which "acts as a safety valve to a full mind." He supports his homeostatic (...) theory with numerous statements by creative persons about their psycho-physiological state at the time of inspiration. Burnshaw wisely limits his theory of creation to those works which seem to be truly inspired, which "demand" to be born; nevertheless, his method tends toward the pseudo-scientific. He too facilely converts the terms of the poet's auto-description into supposed physicalist counterparts. In like manner, the esthetic experience is reduced to the communication of an internal metaphor which constitutes the "true" poem, where this internal metaphor is the expression, through the affective structures of the poem, of the poet's inner bodily movements at the time of creation. The reader, because of changes in his muscular, circulatory, and respiratory systems, comes to "reverberate" with the internal metaphor. Fortunately, Burnshaw doesn't get too caught up in such theories. In the second section of the book, for example, he goes beyond reductionistic explanations and discusses the act of creation in teleological terms; poetry becomes a primal language, which, in symbolically restoring the true sensuality of all things, overcomes alienation and reunites both poet and reader in themselves, with each other, and with the rest of the universe. The book contains a wealth of biological, anthropological, zoological, and psychological information and ideas, plus some very penetrating analyses of different poems in an explicitly rhetorical and implicitly metaphysical framework.--C. M. R. (shrink)

Recently, in the framework of a relativistic quantum theory with invariant evolution parameter, solutions have been found for the two-body bound state, whose mass spectrum agrees with the nonrelativistic Schrödinger energy spectrum. In this paper, we study the radiative transitions of these states in the dipole approximation and find that the selection rules are identical with those of the usual nonrelativistic theory, expressed in a manifestly covariant form. In addition to the transverse and longitudinal polarizations of the nonrelativistic theory, we (...) find a “scalar” transition, induced by the relative time coordinate, which is of the same type as the longitudinal transition, expressing the Lorentz covariance of the theory. (shrink)

The Health Protection Agency has recently attempted to create a postmortem tissue archive to determine the prevalence of abnormal prion protein. The success of this archive was prevented because the Health Protection Agency could not convince coroners to support the study’s methodology and participate on that basis. The findings of this paper detail and support the view that the Coroners’ Society of England and Wales’s refusal to participate was misguided and failed to appreciate that coroners have a moral obligation to (...) protect public health. Measures to assist coroners in fulfilling this role are proposed. (shrink)

We present here a direct elementary construction of continuous utility functions on perfectly separable totally preordered sets that does not make use of the well-known Debreu’s open gap lemma. This new construction leans on the concept of a separating countable decreasing scale. Starting from a perfectly separable totally ordered structure, we give an explicit construction of a separating countable decreasing scale, from which we show how to get a continuous utility map.

We describe and analyse how large herbivores strongly diminished a woody vegetation, dominated by the unpalatable shrub Sambucus nigra L. and changed it into grassland. Density of woody species and cover of vegetation were measured in 1996, 2002 and 2012 in the grazed Oostvaardersplassen. In 2002 and 2012 we also measured density and cover in an ungrazed control site. In 2002 we measured intensity of browsing and bark loss of Sambucus shrubs in the grazed and control sites. In the grazed (...) site the density of Sambucus and Salix spp. declined significantly between 1996 and 2012, and large areas changed into grassland. In the control site the density of Sambucus increased significantly during this period, the density of Salix spp. did not change, and the vegetation consisted of a mixture of woody species and a field layer dominated by tall herbs. In 2002 and 2012 the percentages of dead Sambucus shrubs were significantly higher in the grazed site than in the control site. In 2002 the percentages of twigs browsed and ring barked stems of Sambucus shrubs were significantly higher in the grazed site than in the control site. Our results show that debarking caused mature Sambucus shrubs to die, but that heavy browsing may have helped this process. Our results also point to a significant neighbour effect on the break down of Sambucus, suggesting that Aggregational Resistance and Associational Palatability were both active. Essential conditions for the break down of this woody vegetation were the presence of large herbivores, the low ratio between the areas of summer and winter feeding habitats and the competition amongst herbivores. Browsing may have been responsible for seedling death, as seedlings were found only in the control site and not on the old and newly established grasslands in the grazed site. (shrink)

We have conducted a retrospective study of deaths on a paediatric medical intensive care unit over a two-year period and reviewed similar series from outside the UK. There were 89 deaths out of 651 admission (13.7% mortality). In almost two-thirds of the cases death occurred with a decision to limit medical treatment or withdraw mechanical ventilation, implying that additional or further therapy was considered futile. We highlight this as a crucially important issue in the practice of intensive care. More comprehensive (...) studies are needed to help clinicians derive consensus on what constitutes a futile intervention, and therefore when such an intervention should be withheld. This will help families and society better understand the limitations of intensive care. (shrink)

Oxidative damage to DNA has been associated with neurodegenerative diseases. Developmental exposure to lead has been shown to elevate the Alzheimer's disease related beta-amyloid peptide , which is known to generate reactive oxygen species in the aging brain. This study measures the lifetime cerebral 8-hydroxy-2'-deoxyguanosine levels and the activity of the DNA repair enzyme 8-oxoguanine DNA glycosylase in rats developmentally exposed to Pb. Oxo8dG was transiently modulated early in life , but was later elevated 20 months after exposure to Pb (...) had ceased, while Ogg1 activity was not altered. Furthermore, an age-dependent loss in the inverse correlation between Ogg1 activity and oxo8dG accumulation was observed. The effect of Pb on oxo8dG levels did not occur if animals were exposed to Pb in old age. These increases in DNA damage occurred in the absence of any Pb-induced changes in copper/zinc-superoxide dismutase , manganese-SOD , and reduced-form glutathion . These data suggest that oxidative damage and neurodegeneration in the aging brain could be impacted by the developmental disturbances. (shrink)

Two structures are said to be equimorphic if each embeds in the other. Such structures cannot be expected to be isomorphic, and in this paper we investigate the special case of linear orders, here also called chains. In particular we provide structure results for chains having less than continuum many isomorphism classes of equimorphic chains. We deduce as a corollary that any chain has either a single isomorphism class of equimorphic chains or infinitely many.

This conceptual paper explores the role that wisdom plays in social work. In the literature, this topic is primarily discussed in terms of ‘Practice Wisdom’, a kind of implicit and intuitive-based body of knowledge that is acquired through practice experience. After reviewing some formulations of it, we argue that practice wisdom faces a number of difficulties and is a misguided approach. To replace it, we propose a novel framework called ‘Practitioner Wisdom’, which emphasises that the proper subject of wisdom is (...) not some sub-personal construct like a body of knowledge or a set of skills but the social work practitioner. Drawing from virtue theory in philosophy, we theorise that being a wise practitioner is a matter of acquiring and cultivating a character that is constituted by the relevant social work virtues and values. We conclude by discussing some benefits of practitioner wisdom, including how it can be taught to social work students and entrants, and suggest some future areas of research. (shrink)

Pioneering work in the 1940s and 1950s suggested that the concept of chunking might be important in many processes of perception, learning and cognition in humans and animals. We summarize here the major sources of evidence for chunking mechanisms, and consider how such mechanisms have been implemented in computational models of the learning process. We distinguish two forms of chunking: the first deliberate, under strategic control, and goal-oriented; the second automatic, continuous, and linked to perceptual processes. Recent work with discrimination-network (...) computational models of long- and short-term memory (EPAM/CHREST) has produced a diverse range of applications of perceptual chunking. We focus on recent successes in verbal learning, expert memory, language acquisition and learning multiple representations, to illustrate the implementation and use of chunking mechanisms within contemporary models of human learning. (shrink)