College of Medicine, University of South Alabama Mobile, AL 36688-0002, USA wbp501{at}jaguar1.usouthal.edu ' + u + '@' + d + ' '//--> Abstract Recent work in viral genomics has shown that bacteriophages exhibit a high degree of mosaicism, which is most likely due to a long history of prolific horizontal gene transfer (HGT). Given these findings, we argue that each of the most plausible attempts to properly classify bacteriophages into distinct species fail. Mayr's biological species concept fails because there is (...) no useful viral analog to sexual reproduction. Phenetic species concepts fail because they obscure the mosaicism and the rich reticulated viral histories. Phylogenetic species concepts, even when extended to take into account reticulation, fail because there is no non-arbitrary distinction between recombination events that create a new viral species and those that do not. There is good reason to think that bacteriophages, arguably the Earth's most abundant biological agent, evolve without forming species. Introduction The Biology of Viruses 2.1 Bacteriophage life cycles 2.2 Mechanisms of HGT The Species Problem and Species Concepts 3.1 Phenetic species concepts 3.2 The biological species concept 3.3 Phylogenetic species concepts 3.4 The ecological species concept 3.5 Homeostatic property cluster species Viruses and Species Taxonomy Reticular Phylogenies Conclusion CiteULike Connotea Del.icio.us What's this? (shrink)

Recent work in viral genomics has shown that bacteriophages exhibit a high degree of mosaicism, which is most likely due to a long history of prolific horizontal gene transfer (HGT). Given these findings, we argue that each of the most plausible attempts to properly classify bacteriophages into distinct species fail. Mayr's biological species concept fails because there is no useful viral analog to sexual reproduction. Phenetic species concepts fail because they obscure the mosaicism and the rich reticulated viral histories. Phylogenetic (...) species concepts, even when extended to take into account reticulation, fail because there is no non-arbitrary distinction between recombination events that create a new viral species and those that do not. There is good reason to think that bacteriophages, arguably the Earth's most abundant biological agent, evolve without forming species.1. Introduction2. The Biology of Viruses2.1. Bacteriophage life cycles2.2. Mechanisms of HGT3. The Species Problem and Species Concepts3.1. Phenetic species concepts3.2. The biological species concept3.3. Phylogenetic species concepts3.4. The ecological species concept3.5. Homeostatic property cluster species4. Viruses and Species Taxonomy5. Reticular Phylogenies6. Conclusion. (shrink)

Is it ethical to treat a death row inmate only to stabilize him or her for eventual execution? What happens when a military provider receives highly sensitive intelligence from a client?

Is it ethical to treat a death row inmate only to stabilize him or her for eventual execution? What happens when a military provider receives highly sensitive intelligence from a client? How can clinicians refuse costly gifts from clients without damaging the therapeutic relationship? Should a therapist disclose a client's suicidal intent to the authorities? In Ethical Conundrums, Quandaries and Predicaments in Mental Health Practice, these and other real-life scenarios constitute a comprehensive and definitive ethics casebook for mental health professionals. (...) Inspired by the many difficult situations they themselves have faced, an eminent group of accomplished mental health clinicians provide first-hand accounts of ethical problems that defy boilerplate solutions. Each chapter begins with a compelling and ethically complex case followed by an illustrative yet succinct analysis of the key ethical issues present and a personal reflection on the case itself, along with the process of ethical reasoning used to arrive at a final decision. Every case concludes with key recommendations for promoting ethical practice within an often challenging work setting. Highlighting the human aspect of ethics in mental health practice through the use of mesmerizing narratives while also provoking the reader to reflect upon what is the "right" thing to do, Ethical Conundrums, Quandaries and Predicaments in Mental Health Practice offers trainees and seasoned professionals alike invaluable informative models for dealing with ethical dilemmas, as well as the inspiration to confront seemingly insurmountable clinical problems. (shrink)

Patterned after Strunk and White's classic The Elements of Style , this handy reference concisely summarizes the substantial existing research on the delicate balance of professional ethics. Johnson and Ridley reduce the wealth of published material on the topic to the seventy-five most important and pithy truths for supervisors in all fields. These explore questions of integrity, loyalty, justice, respect, and delivering one's best in the business environment. Succinct and comprehensive, this is a must-have for any professional or business leader (...) striving to create an ethical workplace. (shrink)

Although advertisements for jobs in academe increasingly suggest that mentoring students is a job requirement, and although academic institutions are increasingly prone to consider a faculty member's performance as a mentor at promotion and tenure junctures, there is currently no common approach to conceptualizing or evaluating mentor competence. This article proposes the triangular model of mentor competence as a preliminary framework for conceptualizing specific components of faculty competence in the mentor role. The triangular model includes mentor character virtues and intellectual/emotional (...) abilities, as well as knowledge and skills (competencies) that are seen as expressions of training and experience. The article concludes with discussion of the implications of this model for faculty hiring, training, and evaluation. (shrink)

Religion and spirituality are important aspects of the lives of most psychotherapy clients. Unfortunately, many psychotherapists lack the training to effectively and ethically address these issues with their clients. At times, religious or spiritual concerns may be relevant to the reasons clients seek treatment, either as areas of conflict or distress for clients or as sources of strength and support that the psychotherapist may access to enhance the benefit of psychotherapy. This article reviews persistent ethical issues and dilemmas relevant to (...) providing psychotherapy to clients for whom issues of religion and spirituality are clinically relevant. Ethical considerations include assessment, advertising and public statements, informed consent, competence, boundary issues and multiple relationships, cooperation with other professionals, and how to effectively integrate religious and spiritual interventions into ongoing psychotherapy. A decision-making process is presented to guide psychotherapists in their clinical work with clients for whom religious and spiritual issues are salient or clearly linked to their presenting problems. (shrink)

What determines whether an action is right or wrong? Morality, Rules, and Consequences: A Critical Reader explores for students and researchers the relationship between consequentialist theory and moral rules. Most of the chapters focus on rule consequentialism or on the distinction between act and rule versions of consequentialism. Contributors, among them the leading philosophers in the discipline, suggest ways of assessing whether rule consequentialism could be a satisfactory moral theory. These essays, all of which are previously unpublished, provide students in (...) moral philosophy with essential material and ask key questions on just what the criteria for an adequate moral theory might be. (shrink)

If you are interested in accountability and transparency in public decision-making, this book is for you. If you are interested in ways and means of avoiding capture by vested interests when making public policy, this book is for you. If you are interested in a sustainable and efficient agri-food system which meets the needs of consumers, producers and society, this book is for you.Agriculture remains an important industry in many economies. It is also a key sector with an important role (...) to play in determining nations’, societies’ and households’ nutritional and environmental performance and outcomes. Unfortunately, the agri-food sector in many countries suffers from excessive and poorly focused levels and types of intervention, constrained growth, and unsustainable practices.In his book, Developing Successful Agriculture, Professor Zhang-Yue Zhou provides us with a comprehensive and compelling account of how Australia’s agri-food sector has become so successful even though it receive .. (shrink)

This paper presents three studies exploring the relationship between emotional responses to classic cognitive developmental moral dilemmas and moral reasoning indices as measured by the Defining Issues Test (DIT). Each study indicated that certain moral dilemmas elicit varying levels of anger and sadness as compared to a neutral baseline. In each study, decreased moral reasoning was observed in those instances where reports in both sadness and anger were high following a dilemma. This did not occur, however, in those instances where (...) only sadness or anger was high following a dilemma. Affective inductions prior to taking the DIT (study 3) did not impact trends beyond that found for individual moral dilemmas in studies 1 and 2. Although certain dilemmas elicited affective states that temporarily influenced reasoning, in general participants? reasoning levels stayed consistent across dilemmas. Results are discussed in terms of the role of affect on the moral judgment process. (shrink)

If Einstein's equations are to describe a field theory of gravity in Minkowski spacetime, then causality requires that the effective curved metric must respect the flat background metric's null cone. The kinematical problem is solved using a generalized eigenvector formalism based on the Segré classification of symmetric rank 2 tensors with respect to a Lorentzian metric. Securing the correct relationship between the two null cones dynamically plausibly is achieved using the naive gauge freedom. New variables tied to the generalized eigenvector (...) formalism reduce the configuration space to the causality-respecting part. In this smaller space, gauge transformations do not form a group, but only a groupoid. The flat metric removes the difficulty of defining equal-time commutation relations in quantum gravity and guarantees global hyperbolicity. (shrink)

Previous study has asserted that education majors score lower on assessments of moral development than do other majors. However, important factors associated with moral development have been overlooked. This study investigated the degree to which moral developmental differences exist by accounting for some of the oversights observed in previous study. Samples of 51, 38, and 62 college students in education, psychology, and other majors were addressed in terms of their moral judgment development, moral sensitivity, nonprejudice, and attitudes about human rights (...) and civil liberties. Although some minor trends are seen in favor of psychology majors, results support that moral developmental differences are not as dire as previous study portends. The authors recommend efforts to account for the individual, academic, and extracurricular experiences associated with majors and universities so that continued understanding of the moral development and functioning of their students can occur. (shrink)

The oft-neglected issue of the causal structure in the flat spacetime approach to Einstein's theory of gravity is considered. Consistency requires that the flat metric's null cone be respected, but this does not automatically happen. After reviewing the history of this problem, we introduce a generalized eigenvector formalism to give a kinematic description of the relation between the two null cones, based on the Segre' classification of symmetric rank 2 tensors with respect to a Lorentzian metric. Then we propose a (...) method to enforce special relativistic causality by using the gauge freedom to restrict the configuration space suitably. A set of new variables just covers this smaller configuration space and respects the flat metric's null cone automatically. Respecting the flat metric's null cone ensures that the spacetime is globally hyperbolic, indicating that the Hawking black hole information loss paradox does not arise in the special relativistic approach to Einstein's theory. (shrink)

Recently the neglected issue of the causal structure in the flat space-time approach to Einstein's theory of gravity has been substantially resolved. Consistency requires that the flat metric's null cone be respected by the null cone of the effective curved metric. While consistency is not automatic, thoughtful use of the naive gauge freedom resolves the problem. After briefly recapitulating how consistent causality is achieved, we consider the flat Robertson–Walker Big Bang model. The Big Bang singularity in the spatially flat Robertson–Walker (...) cosmological model is banished to past infinity in Minkowski space-time. A modified notion of singularity is proposed to fit the special relativistic approach, so that the Big Bang becomes nonsingular. (shrink)

A physical framework has been proposed which describes manifestly covariant relativistic evolution using a scalar time τ. Studies in electromagnetism, measurement, and the nature of time have demonstrated that in this framework, electromagnetism must be formulated in terms of τ-dependent fields. Such an electromagnetic theory has been developed. Gravitation must also use of τ-dependent fields, but many references do not take the metric's dependence on τ fully into account. Others differ markedly from general relativity in their formulation. In contrast, this (...) paper outlines steps towards a τ-dependent classical intrinsic formulation of gravitation, patterned after general relativity, which we call parametrized general relativity (PGR). Given the existence of a preferred foliation, the Hamiltonian constraint is removed. We find that some nonmetricity in the connection is allowed, unlike in general relativity. Conditions on the allowable nonmetricity are found. Consideration of the initial value problem confirms that the metric signature should normally be O(3, 2) rather than O(4, 1). Following the lead of earlier works, we argue that concatenation (integration over τ) is unnecessary for relating parametrized physics to experience, and propose an alternative to it. Finally, we compare and contrast PGR with other relevant gravitational theories. (shrink)

Paralleling the formal derivation of general relativity as a flat spacetime theory, we introduce in addition a preferred temporal foliation. The physical interpretation of the formalism is considered in the context of 5-dimensional “parametrized” and 4-dimensional preferred frame contexts. In the former case, we suggest that our earlier proposal of unconcatenated parametrized physics requires that the dependence on τ be rather slow. In the 4-dimensional case, we consider and tentatively reject several areas of physics that might require a preferred foliation, (...) but find a need for one in the process (“flowing”) theory of time. We then suggest why such a foliation might reasonably be unobservable. (shrink)

At some time around August 324b.c., Antipater, the regent of Macedonia received orders from Alexander the Great that he was to be replaced with another eminent officer in the Macedonian court, Craterus. In addition to his removal from office, Antipater was ordered by Alexander to leave Macedonia for the East, bringing with him fresh levies to replenish those that comprised Craterus' own contingent of veterans from Opis. Though Craterus left Alexander's court shortly thereafter, neither man can be said to have (...) made the journey speedily or directly. A range of reasons has been given to explain Craterus' slow advancement, including the construction of infrastructure to allow the transportation of military resources from east to west, the poor state of his health, and the need to recruit more men. By the time of Alexander's death in June of 323, Craterus and his forces had only reached the province of Cilicia in southeastern Anatolia. Antipater's immediate reaction to his new role is not recorded, but what is known is that he remained steadfast in Macedonia, seemingly in defiance of Alexander's orders. It is the purpose of this paper to evaluate Antipater's refusal to depart from Macedonia, to explore whether tensions between Antipater and his replacement could account for Craterus' sluggish advance and to highlight the impact that Greek domestic politics had on Antipater's position in Macedonia. (shrink)

In a framework describing manifestly covariant relativistic evolution using a scalar time τ, consistency demands that τ-dependent fields be used. In recent work by the authors, general features of a classical parametrized theory of gravitation, paralleling general relativity where possible, were outlined. The existence of a preferred “time” coordinate τ changes the theory significantly. In particular, the Hamiltonian constraint for τ is removed From the Euler-Lagrange equations. Instead of the 5-dimensional stress-energy tensor, a tensor comprised of 4-momentum density mid flux (...) density only serves as the source. Building on that foundation, in this paper we develop a linear approximate theory of parametrized gravitation in the spirit of the flat spacetime approach to general relativity. Using a modified form of Kraichnan's flat spacetime derivation of general relativity, we extend the linear theory to a family of nonlinear theories in which the flat metric and the gravitational field coalesce into a single effective curved metric. (shrink)

Aboriginal Australians have an intrinsic relationship to Country, kinship and community. The processes related to colonisation have decimated traditional lifestyles, ecology and even families. The challenge for energy engineers lies in the ability to reconcile the profession of engineering with the contemporary and traditional cultural and physical needs of Aboriginal people. A discussion around Aboriginal peoples’ most deeply held values will be linked to both global and professional ethical canons. This discussion has implications for Aboriginal and Indigenous peoples globally. A (...) fictitious case study—the ‘Warrigal Downs Energy Hub’—provides us with a hypothetical project to which we can link both examples and frameworks. Our team of Aboriginal and non-Aboriginal educators and engineers provides us with a right, wrong and even better way to work sensitively, meaningfully and reciprocally with Aboriginal people in Australia and, indeed, globally. (shrink)

This study addresses how moral judgment development, authenticity, and nonprejudice account for variance in scores pertaining to various motivational functions underlying volunteerism in order to clarify certain problems associated with previous research that has considered such relationships. In the study, 127 participants completed measurements that pertain to these constructs. Correlations revealed that moral judgment had a negligible relationship with both authenticity and nonprejudice, thereby affirming that the former construct is distinct from the latter two. Linear regression analyses supported that moral (...) judgment development and nonprejudice provided the strongest contributions to the variance of the considered indices of volunteer motivation. The motivational function underlying volunteerism was also recognized as an important factor that pertains to the observed contributions of variance. Findings are discussed in concert with and compared to prior considerations of relationships between moral judgment development and considerations of the moral self. Implications where moral education is concerned are also considered. (shrink)

The Assumption of Agency Theory revisits the Turing Test and€examines what Turing's assessor knew. It asks important questions about how machines vis à vis humans have been characterized since Turing, and seeks to reverse the trend of looking closely at the machine by asking what humans know in interaction and how they know it.€This book€characterizes a non-human agent that shows itself in interaction but is distinct from human agency: an agent acting with us in our ongoing reproduction and transformation of (...) structure. Turing predicted that at the end of the twentieth century, w. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Rhetoric 36.3 (2003) 223-248 [Access article in PDF] Probabilities, Signs, Necessary Signs, Idia, and Topoi:The Confusing Discussion of Materials for Enthymemes in the Rhetoric Brad McAdon This essay examines three groups of "sources" or "materials" of enthymemes in Aristotle's Rhetoric. According to the text of the Rhetoric, enthymemes are derived from, among other things, probabilities, signs, and necessary signs, and/or from the topics, and/or from idia (...) as the following table indicates.1The Rhetoric does not explain any relationships that may exist between these different sources (or materials) from which enthymemes are said. This problem, as I am framing it, is two-fold: First, these different conceptions of materials from which enthymemes are said are never reconciled into a coherent account (or theory) in the Rhetoric. Rather, each conception of materials for the enthymeme is presented in a way that obscures, rather than facilitates, our understanding of the materials of enthymemes in the Rhetoric. Moreover, when Rhetoric 2.22-23 and its textual contexts are compared to 1.2 and its textual contexts, several differences will emerge [End Page 223] in respect to the nature of the materials of enthymemes and the distinctions in enthymemes that further cloud our understanding of the text. Second, many contemporary commentators place more emphasis on the dialectical aspects of rhetoric than the demonstrative. For while rhetoric is said to be closely related to dialectic in important ways in the early portions of the Rhetoric (especially 1.1-2), there are, arguably, more similarities between the materials of enthymemes in the Prior and Posterior Analytics (and thus demonstrative argument) than in the Topics (and dialectical argument). This suggests that the discussion of the materials of enthymemes in the Rhetoric is more demonstrative in nature (or at least in emphasis) than dialectical, and I hope to demonstrate that this is the case.As far as I can tell, Grimaldi's discussions of the "Eikota and semeia" (1972, 104-15) and "The topoi" (115-35) are the only contemporary attempts to explicitly address the relationship between probabilities and signs and the topoi in the Rhetoric. 2 Grimaldi's account is confusing in many respects. For example, in addition to understanding the idia as topoi, he claims that "[w]hen Aristotle has presented us with the sources of the enthymeme, eikota and semeia, and told us that they are the premises of enthymematic reasoning (A3, 59a7-10) the question which immediately arises is where does the rhetor turn for the material which will provide him with such eikota and semeia. The answer is: the topics" (115). Yet, a little further down the same page, he claims that "the topics are sources, or loci, both particular and general, to which one must have recourse in constructing probable argumentation by enthymeme in an effort to effect pistis" (115). So, in effect, Grimaldi claims that probabilities and signs are the sources of enthymemes and then that the topics are the sources of probabilities and signs, 3 but, as demonstrated above, the text of the Rhetoric clearly claims that the topoi are the sources of enthymemes just as probabilities, signs, and necessary signs are sources of enthymemes. Grimaldi fails to address or even acknowledge this. Rather, in his attempt to maintain the unity of the text of the Rhetoric, he has advanced this working relationship between eikota and se-meiaand the topoi in what he claims is a consistent theory in the Rhetoric concerning the relationship of eikota and se-meia (and tekme-ria)to the topoi that, I will argue, is not supported by the text as Grimaldi suggests. More recently, Robin Smith (1989 and 1997) provides carefully informed commentary on some of these terms—topos, idia, eikos, se-meia, and tekme-ria—but, and this is not his purpose, he does not provide a discussion that explicitly examines how (or if) these different terms relate to one another as sources of enthymemes. Thus, this essay is an attempt to explore and succinctly articulate the problems with the... (shrink)

Response Content Type Journal Article DOI 10.1007/s11673-010-9253-3 Authors Brad Partridge, Program in Professionalism and Bioethics, Mayo Clinic, 200 First Street S.W., Rochester, MN 55905, USA Journal Journal of Bioethical Inquiry Online ISSN 1872-4353 Print ISSN 1176-7529.

It is widely recognized that conceptual and theoretical innovations and the employment of new instruments and experimental techniques are important factors in explaining the growth of scientific knowledge in chemistry. This study examines another dimension of research in chemistry, collaboration and co-authorship. I focus specifically on Theodore Richards’ career and publications. During the period in which Richards worked, co-authorship was beginning to become more common than it had been previously. Richards was the first American chemist to be awarded a Nobel (...) Prize and he was at the forefront in this new trend in chemistry. He collaborated more than was typical for his time, with many scientists, in different sized groups, and he often had persistent collaborative relationships, extending over a number of years. Further, it appears that these collaborations benefited Richards, his collaborators, and the field of chemistry as a whole. (shrink)

Proceedings of the Banff Congress on Theoretical Psychology. Philosophers and psychologists discuss the relative merits of their approaches to the study of consciousness.

In this article, I argue that Brad Hooker's rule-consequentialism implausibly implies that what earthlings are morally required to sacrifice for the sake of helping their less fortunate brethren depends on whether or not other people exist on some distant planet even when these others would be too far away for earthlings to affect.

Preview: /Review: Andrea J. Pitts and Mark William Westmoreland, eds. Beyond Bergson: Examining Race and Colonialism Through the Writings of Henri Bergson, 255 pages./ Among Bergson’s contributions to philosophical and empirical investigations; such as those centered on freedom, memory, and evolution; exists in the form of his last book, The Two Sources of Morality and Religion. It is interesting because, as many readers of Bergson have remarked, it does not seem to fit well, primarily in method, with his other (...) endeavors in the pursuit of philosophical exploration and elaboration. Having been mentored by a philosopher who holds this position, I have long shied away from the text that represents Bergson’s last concerted philosophical effort of inquiry. Meanwhile, having been intrigued by the possibility of a more just world and compelled by a desire to serve such an end, I was interested in envisioning what a Bergsonian philosophy of social justice, revolution, or morality would contain. Early on in my readings of Bergson, I felt the seeming applicability of Bergson’s method of intuition to moral and social questions. Over the years, I have devoted significant time to thinking through durational investigations of intensity to problems of social justice. While I have made some inroads to accomplishing this goal, I feel the journey has just begun for me. It was in this context that I was excited at the prospect of this book, and it is this book that has helped me to appreciate some of the ways that Bergson’s philosophy could be adapted to thinking through moral and social questions. To be clear, much work has been done in the way of expounding political or moral philosophies in which Bergson’s thought might be interpreted as a prelude. My reluctance to embrace Two Sources has been a self-imposed hindrance to my engaging in those extra-Bergsonian works for fear of running against the current of Bergson’s earlier texts. My reticence is intended to be taken as neither a slight of Bergson’s Two Sources nor a discounting of those who find inspiration in that work. (shrink)

Historians of the eugenics movement have long been ambivalent in their examination of the links between British hereditary researchers and Nazi Germany. While there is now a clear consensus that American eugenics provided significant material and ideological support for the Germans, the evidence remains less clear in the British case where comparatively few figures openly supported the Nazi regime and the left-wing critique of eugenics remained particularly strong. After the Second World War British eugenicists had to push back against the (...) accusation that their science was intrinsically dictatorial or totalitarian and, as a result, many of their early perceptions of the Nazis were ignored or rationalised away. Further, historians in recent years have focused more directly on the social reformist elements of eugenics, discussing the links between hereditary science and the birth control and feminist movements in addition to others. While undoubtedly making valuable contributions to the scholarly understanding of the eugenic milieu in the interwar years, these studies have neglected to recontextualize the sentiments of British eugenicists who did indeed view the Nazi government positively in the early years of the 1930s. This article argues that there was a significant, though not numerically sizable, faction in the British eugenics movement, though mostly outside the Eugenics Society itself, in the early 1930s that viewed the Nazi Germany as an admirable state for its implementation of eugenic principles. One of these figures was later interned by his own government for being too closely aligned with the German regime, though he argued that this affinity was driven by the quest for scientific truth rather than politics. Eugenics in Britain thus contained a greater diversity of views toward Germany than scholars have previously assumed, warranting more research into the individuals and organizations harbouring these views. (shrink)

Catarina S. Ferreira y Alejandra Marful Centro de Investigación Mente, Cerebro y Comportamiento, Universidad de Granada, España … Read More →.

At first trust plays a fundamental role within the social sphere. Accordingly, trust serves as philosophical term above all in Political, Social, and Moral Philosophy. But it is also central in recent Sociology and Psychology. Referring to these disciplines, the relationship of trust be- tween viewer and hero on the screen can be called ›parasocial‹, as-if-interaction. In contrast, ontological trust is of particular interest for recent philosophy of film. Instead of explaining it, following Deleuze, in terms of a metaphysics of (...) cinema it seems to be more adequate to com- bine the different subject-specific answers in Kant’s concept of play. Aesthetic experiences then are encouraging us in the attitude to act as if there could be trust in the world. (shrink)