In this article, the rotational invariance of entangled quantum states is investigated as a possible cause of the Pauli exclusion principle. First, it is shown that a certain class of rotationally invariant states can only occur in pairs. This is referred to as the coupling principle. This in turn suggests a natural classification of quantum systems into those containing coupled states and those that do not. Surprisingly, it would seem that Fermi–Dirac statistics follows as a consequence of this coupling while (...) the Bose–Einstein follows by breaking it. In Sec. 5, the above approach is related to Pauli's original spin-statistics theorem and finally in the last two sections, a theoretical justification, based on Clebsch–Gordan coefficients and the experimental evidence respectively, is presented. (shrink)

A one-to-one correspondence is established between linearized space-time metrics of general relativity and the wave equations of quantum mechanics. Also, the key role of boundary conditions in distinguishing quantum mechanics from classical mechanics, will emerge naturally from the procedure. Finally, we will find that the methodology will enable us to introduce not only test charges but also test masses by means of gauges.

Healthcare policy and academic literature have promoted improving the transitional care of young people leaving child and adolescent mental health services. Despite the availability of guidance on good practice, there seems to be no readily accessible, coherent ethical analysis of transition. The ethical principles of non-maleficence, beneficence, justice and respect for autonomy can be used to justify the need for further enquiry into the ethical pros and cons of this drive to improve transitional care. The objective of this systematic review (...) was therefore to systematically search for existing ethical literature on child- to adult-orientated health service transitions and to critically appraise and collate the literature, whether empirical or normative. A wide range of bioethics, biomedical and legal databases, grey literature and bioethics journals were searched. Ancestral and forward searches of identified papers were undertaken. Key words related to transition, adolescence and young adulthood, ethics, law and health. The timeframe was January 2000 to at least March 2016. Titles, abstracts and, where necessary, full articles were screened and duplicates removed. All included articles were critically appraised and a narrative synthesis produced. Eighty two thousand four hundred eighty one titles were screened, from which 96 abstracts were checked. Forty seven full documents were scrutinised, leading to inclusion of two papers. Ancestral and forward searches yielded four further articles. In total, one commentary, three qualitative empirical studies and two clinical ethics papers were found. All focused on young people with complex care needs and disabilities. The three empirical papers had methodological flaws. The two ethical papers were written from a clinical ethics context rather than using a bioethical format. No literature identified specifically addressed the ethical challenges of balancing the delivery of transitional care to those who need it and the risk of pathologizing transient and self-limited distress and dysfunction, which may be normal during adolescence. There is very little research on ethical aspects of transitional care. Most existing studies come from services for young people with complex care needs and disabilities. There is much scope for improvement in the amount and quality of empirical research and ethical analysis in this area. (shrink)

Social machines are a prominent focus of attention for those who work in the field of Web and Internet science. Although a number of online systems have been described as social machines, there is, as yet, little consensus as to the precise meaning of the term “social machine.” This presents a problem for the scientific study of social machines, especially when it comes to the provision of a theoretical framework that directs, informs, and explicates the scientific and engineering activities of (...) the social machine community. The present paper outlines an approach to understanding social machines that draws on recent work in the philosophy of science, especially work in so-called mechanical philosophy. This is what might be called a mechanistic view of social machines. According to this view, social machines are systems whose phenomena are explained via an appeal to socio-technical mechanisms. We show how this account is able to accommodate a number of existing attempts to define the social machine concept, thereby yielding an important opportunity for theoretical integration. (shrink)

Like nature itself, modern economic life is driven by relentless competition and unbridled selfishness. Or is it? Drawing on converging evidence from neuroscience, social science, biology, law, and philosophy, Moral Markets makes the case that modern market exchange works only because most people, most of the time, act virtuously. Competition and greed are certainly part of economics, but Moral Markets shows how the rules of market exchange have evolved to promote moral behavior and how exchange itself may make us more (...) virtuous. Examining the biological basis of economic morality, tracing the connections between morality and markets, and exploring the profound implications of both, Moral Markets provides a surprising and fundamentally new view of economics--one that also reconnects the field to Adam Smith's position that morality has a biological basis. Moral Markets, the result of an extensive collaboration between leading social and natural scientists, includes contributions by neuroeconomist Paul Zak; economists Robert H. Frank, Herbert Gintis, Vernon Smith, and Bart Wilson; law professors Oliver Goodenough, Erin O'Hara, and Lynn Stout; philosophers William Casebeer and Robert Solomon; primatologists Sarah Brosnan and Frans de Waal; biologists Carl Bergstrom, Ben Kerr, and Peter Richerson; anthropologists Robert Boyd and Michael Lachmann; political scientists Elinor Ostrom and David Schwab; management professor Rakesh Khurana; computational science and informatics doctoral candidate Erik Kimbrough; and business writer Charles Handy. (shrink)

En este artículo, expondré el concepto heideggeriano de phýsis entre los años 1927-30. Este concepto aparece en la doctrina de la Welteingang des Seienden, en el marco de una ‘radicalización de la ontología’, proyecto metafísico que luego hará crisis y llevará a Heidegger a reinterpretar la pregunta por el sentido del ser como pregunta por la verdad del Ser. Mostraré que la cuestión de la phýsis aporta elementos en esa crisis y posterior cambio de enfoque, en el ámbito filosófico-histórico y (...) en el fenomenológico. Mi hipótesis es que el empleo del concepto de phýsis en el contexto de la doctrina de la Welteingang des Seienden es un recurso especulativo que pretende aclarar el sentido en que el ente natural es, pero sin aparecer dentro del mundo, en términos de ‘tránsito’ desde el completo ocultamiento (phýsis) al desocultamiento (alétheia). Esto tendrá consecuencias respecto a la evaluación de la tradición metafísica, entendida como un preguntar por la phýsis en el doble sentido de ente en totalidad y ser de lo ente o esencialidad. (shrink)

138 titles across a wide range of scholarly publications illustrate the conceptual affinities that connect the palaetiological sciences of biological systematics, historical linguistics, and stemmatics. These three fields all have as their central objective the reconstruction of evolutionary "trees of history" that depict phylogenetic patterns of descent with modification among species, languages, and manuscripts. All three fields flourished in the nineteenth century, underwent parallel periods of quiescence in the early twentieth century, and in recent decades have seen widespread parallel revivals. (...) "Tree thinking" (O'Hara, 1988) is now standard within evolutionary biology, and the unity of what William Whewell called palaetiology is being once again appreciated by scholars and scientists in many fields. (shrink)

A conceptual analysis of trust in terms of trustworthiness is set out, where trustworthiness is the property of an agent that she does what she claims she will do, and trust is an attitude taken by an agent to another, that the former believes that the latter is trustworthy. This analysis is then used to explore issues in the deployment of trustworthy digital systems online. The ideas of a series of philosophers from the Enlightenment – Hobbes, Burke, Rousseau, Hume, Smith (...) and Kant – are examined in the light of this exploration to suggest how we might proceed in the Digital Enlightenment to ensure that systems are both trustworthy and trusted. (shrink)

_Transcendent Teacher Learner Relationships: The Way of the Shamanic Teacher _ explores the nature of the transcendent teacher learner relationship and precisely how such relationships of warmth, safety, mutual care, mutual respect and mutual trust are developed and maintained.

The Pebble Limited Partnership proposes to create the Pebble Mine, one of the world’s largest open-pit mines, in the Bristol Bay watershed, home to Alaska’s largest sockeye salmon fishery. De...

In CQ 34 , 167–74, Janet Fairweather makes the interesting suggestion that the elegiacs by Gallus on the Qasr Ibrim papyrus should be understood as ‘a fragment of an amoebaean song-contest’. This hypothesis, as she notes, might explain why the papyrus' quatrains are set apart by spaces and by an odd type of symbol, and treat ‘separate, indeed discrepant, topics’, yet show ‘unmistakable verbal and thematic connections’. Fairweather's discussion is thorough, but overlooks one small piece of evidence for Gallan amoebaean (...) verse. (shrink)

This book argues that the novelist Joseph Conrad's work speaks directly to us in a way that none of his contemporaries can. Conrad’s scepticism, pessimism, emphasis on the importance and fragility of community, and the difficulties of escaping our history are important tools for understanding the political world in which we live. He is prepared to face a future where progress is not inevitable, where actions have unintended consequences, and where we cannot know the contexts in which we act. _Heart (...) of Darkness_ uncovers the rotten core of the Eurocentric myth of imperialism as a way of bringing enlightenment to 'native peoples’ – lessons which are relevant once more as the Iraq debacle has undermined the claims of liberal democracy to universal significance. The result can hardly be called a political programme, but Conrad’s work is clearly suggestive of a sceptical conservatism of the sort described by the author in his 2005 book _After Blair: Conservatism Beyond Thatcher_. The difficult part of a Conradian philosophy is the profundity of his pessimism – far greater than Oakeshott, with whom Conrad does share some similarities. Conrad’s work poses the question of how far we as a society are prepared to face the consequences of our ignorance. (shrink)

This paper explores the concept of digital modernity, the extension of narratives of modernity with the special affordances of digital networked technology. Digital modernity produces a new narrative which can be taken in many ways: to be descriptive of reality; a teleological account of an inexorable process; or a normative account of an ideal sociotechnical state. However, it is understood that narratives of digital modernity help shape reality via commercial and political decision-makers, and examples are given from the politics and (...) society of the United Kingdom. The paper argues that digital modernity has two dimensions, of progression through time and progression through space, and these two dimensions can be in contradiction. Contradictions can also be found between ideas of digital modernity and modernity itself, and also between digital modernity and some of the basic pre-modern concepts that underlie the whole technology industry. Therefore, digital modernity may not be a sustainable goal for technology development. (shrink)

William Whewell (1794–1866), polymathic Victorian scientist, philosopher, historian, and educator, was one of the great neologists of the nineteenth century. Although Whewell's name is little remembered today except by professional historians and philosophers of science, researchers in many scientific fields work each day in a world that Whewell named. "Miocene" and "Pliocene," "uniformitarian" and "catastrophist," "anode" and "cathode," even the word "scientist" itself—all of these were Whewell coinages. Whewell is particularly important to students of the historical sciences for another word (...) he coined, one that was unfortunately not as successful as many of his others because it is difficult to pronounce. This word, "palaetiology," was the name Whewell gave to the class of sciences that are concerned with historical causation: the class we might today refer to as historical sciences. Although the disciplines Whewell included under the heading of palaetiology might seem to cut across conventional academic boundaries of his day and ours—his exemplary palaetiological sciences were geology and comparative philology—all these fields may be examined together, Whewell argued, because of their common interest in reconstructing the past. ¶ This paper is an essay in the palaetiological sciences, dedicated to Whewell on the bicentennial of his birth, an essay that examines some of the principles, maxims, and rules of procedure that these sciences have all in common. Its first purpose is to demonstrate the continuing validity of Whewell's classification of these sciences through a study of historical representation in three different palaetiological fields: systematics, historical linguistics, and textual transmission. Its second purpose is to continue the development of an extended analogy between historical representation and cartographic representation that I began in an earlier paper (O'Hara, 1993, Systematic Biology), an analogy that makes especially clear the common representational practices that are found throughout palaetiology. (shrink)

In recent work MacPherson argues that the standard method of modeling belief logically, as a necessity operator in a modal logic, is doomed to fail. The problem with normal modal logics as logics of belief is that they treat believers as "ideal" in unrealistic ways (i.e., as omnidoxastic); however, similar problems re-emerge for candidate non-normal logics. The authors argue that logics used to model belief in artificial intelligence (AI) are also flawed in this way. But for AI systems, omnidoxasticity is (...) impossible because of their finite nature, and this fact can be exploited to produce operational models of fallible belief. The relevance of this point to various philosophical views about belief is discussed. (shrink)

Accounts of the evolutionary past have as much in common with works of narrative history as they do with works of science. Awareness of the narrative character of evolutionary writing leads to the discovery of a host of fascinating and hitherto unrecognized problems in the representation of evolutionary history, problems associated with the writing of narrative. These problems include selective attention, narrative perspective, foregrounding and backgrounding, differential resolution, and the establishment of a canon of important events. The narrative aspects of (...) evolutionary writing, however, which promote linearity and cohesiveness in conventional stories, conflict with the underlying chronicle of evolution, which is not linear, but branched, and which does not cohere, but diverges. The impulse to narrate is so great, however, and is so strongly reinforced by traditional schemes of taxonomic attention, that natural historians have more often abandoned the diverging tree than they have abandoned the narrative mode of representation. If we are to understand the true nature of the evolutionary past then we must adopt tree thinking, and develop new and creative ways, both narrative and non-narrative, of telling the history of life. (shrink)

"The Natural System" is the abstract notion of the order in living diversity. The richness and complexity of this notion is revealed by the diversity of representations of the Natural System drawn by ornithologists in the Nineteenth Century. These representations varied in overall form from stars, to circles, to maps, to evolutionary trees and cross-sections through trees. They differed in their depiction of affinity, analogy, continuity, directionality, symmetry, reticulation and branching, evolution, and morphological convergence and divergence. Some representations were two-dimensional, (...) and some were three-dimensional; n-dimensional representations were discussed but never illustrated. The study of diagrammatic representations of the Natural System is made difficult by the frequent failure of authors to discuss them in their texts, and by the consequent problem of distinguishing features which carried meaning from arbitrary features and printing conventions which did not. Many of the systematics controversies of the last thirty years have their roots in the conceptual problems which surrounded the Natural System in the late 1800s, problems which were left unresolved when interest in higher-level systematics declined at the turn of this century. (shrink)

Practices of concept-revision among scientists seem to indicate that concepts can be improved. In 2006, the International Astronomical Union revised the concept "Planet" so that it excluded Pluto, and insisting that the result was an improvement. But what could it mean for one concept or conceptual scheme to be better than another? Here we draw on the theory of epistemic utility to address this question. We show how the plausibility and informativeness of beliefs, two features that contribute to their utility, (...) have direct correlates in our concepts. These are how inclusive a concept is, or how many objects in an environment it applies to, and how homogeneous it is, or how similar the objects that fall under the concept are. We provide ways to measure these values, and argue that in combination they can provide us with a single principle of concept utility. The resulting principle can be used to decide how best to categorize an environment, and can rationalize practices of concept revision. (shrink)

Discussions of the theory and practice of systematics and evolutionary biology have heretofore revolved around the views of philosophers of science. I reexamine these issues from the different perspective of the philosophy of history. Just as philosophers of history distinguish between chronicle (non-interpretive or non-explanatory writing) and narrative history (interpretive or explanatory writing), I distinguish between evolutionary chronicle (cladograms, broadly construed) and narrative evolutionary history. Systematics is the discipline which estimates the evolutionary chronicle. ¶ Explanations of the events described in (...) the evolutionary chronicle are not of the covering-law type described by philosophers of science, but rather of the how-possibly, continuous series, and integrating types described by philosophers of history. Pre-evolutionary explanations of states (in contrast to chroniclar events) are still widespread in "evolutionary" biology, however, because evolutionary chronicles are in general poorly known. To the extent that chronicles are known, the narrative evolutionary histories based on them are structured like conventional historical narratives, in that they treat their central subjects as ontological individuals. This conventional treatment is incorrect. The central subjects of evolutionary narratives are clades, branched entities which have some of the properties of individuals and some of the properties of classes. Our unconscious treatment of the subjects of evolutionary narratives as individuals has been the cause of erroneous notions of progress in evolution, and of views that taxa "develop" ontogenetically in ways analogous to individual organisms. We must rewrite our narrative evolutionary histories so that they properly represent the branching nature of evolution, and we must reframe our evolutionary philosophies so that they properly reflect the historical nature of our subject. (shrink)

Neither our evolutionary past, nor our pre-literate culture, has prepared humanity for the use of technology to provide records of the past, records which in many context become normative for memory. The demand that memory be true, rather than useful or pleasurable, has changed our social and psychological under-standing of ourselves and our fellows. The current vogue for lifelogging, and the rapid proliferation of digital memory-supporting technologies, may accelerate this change, and create dilemmas for policymakers, designers and social thinkers.

This chapter compares the social behaviour of human hunter-gatherers with that of the better-studied chimpanzee species, Pan troglodytes, in an attempt to pinpoint the unique features of human social evolution. Although hunter-gatherers and chimpanzees living in central Africa have similar body weights, humans live at much lower population densities due to their greater dependence on predation. Human foraging parties have longer duration than those of chimpanzees, lasting hours rather than minutes, and a higher level of mutual dependence, through the division (...) of labour between men and women ; which is in turn related to pair-bonding, and meat sharing to reduce the risk of individual hunters' failure on any particular day. The band appears to be a uniquely human social unit that resolves the tension between greater dispersion and greater interdependence. (shrink)

Two new modes of thinking have spread through systematics in the twentieth century. Both have deep historical roots, but they have been widely accepted only during this century. Population thinking overtook the field in the early part of the century, culminating in the full development of population systematics in the 1930s and 1940s, and the subsequent growth of the entire field of population biology. Population thinking rejects the idea that each species has a natural type (as the earlier essentialist view (...) had assumed), and instead sees every species as a varying population of interbreeding individuals. Tree thinking has spread through the field since the 1960s with the development of phylogenetic systematics. Tree thinking recognizes that species are not independent replicates within a class (as earlier group thinkers had tended to see them), but are instead interconnected parts of an evolutionary tree. It lays emphasis on the explanation of evolutionary events in the context of a tree, rather than on the states exhibited by collections of species, and it sees evolutionary history as a story of divergence rather than a story of development. Just as population thinking gave rise to the new field of population biology, so tree thinking is giving rise to the new field of phylogenetic biology. (shrink)

This book is an extended and provocative exercise in describing pragmatism’s past and in attempting to chart a course for its future. This description is not merely a history of philosophy or paean to American thought. It is rather a re-description that draws attention to a neglected and potentially fruitful theme in pragmatism, one that Koopman has termed “transitionalism” for its focus on historicity and temporality. One of the enduring features of pragmatism is its commitment to the revisability of truth (...) claims and even to revising its own methods and aims. If pragmatism encourages philosophers to revise old ways of thinking, then pragmatists are people who expect important ideas and institutions to develop .. (shrink)

The joy of intimacy--with yourself, with others, and with the whole universe. The long-awaited first book from a prominent modern American Zen teacher. For Roshi Pat Enkyo O'Hara, intimacy is what Zen practice is all about: the realization of the essential lack of distinction between self and other that inevitably leads to wisdom and compassionate action. She approaches the practice of intimacy beginning at its most basic level--the intimacy with ourselves that is the essential first step. She then shows (...) how to bring intimacy into our relationships with others, starting with those dearest to us and moving on to those who don't seem dear at all. She then shows how to grow in intimacy so that we include everyone around us, all of society, the whole world and all the beings it contains. Each chapter is accompanied by practices she uses with her students at the Village Zendo for manifesting intimacy in our lives. (shrink)

The species problem is one of the oldest controversies in natural history. Its persistence suggests that it is something more than a problem of fact or definition. Considerable light is shed on the species problem when it is viewed as a problem in the representation of the natural system (sensu Griffiths, 1974, Acta Biotheor. 23: 85–131; de Queiroz, 1998, Philos. Sci. 55: 238–259). Just as maps are representations of the earth, and are subject to what is called cartographic generalization, so (...) diagrams of the natural system (evolutionary trees) are representations of the evolutionary chronicle, and are subject to a temporal version of cartographic generalization which may be termed systematic generalization. Cartographic generalization is based on judgements of geographical importance, and systematic generalization is based on judgements of historical importance, judgements expressed in narrative sentences (sensu Danto, 1985, Narration and knowledge, Columbia Univ. Press, New York). At higher systematic levels these narrative sentences are conventional and retrospective, but near the "species" level they become prospective, that is, dependent upon expectations of the future. The truth of prospective narrative sentences is logically indeterminable in the present, and since all the common species concepts depend upon prospective narration, it is impossible for any of them to be applied with precision. (shrink)