The twentieth century saw two fundamental revolutions in physics—relativity and quantum. Daily use of these theories can numb the sense of wonder at their immense empirical success. Does their instrumental effectiveness stand on the rock of secure concepts or the sand of unresolved fundamentals? Does measuring a quantum system probe, or even create, reality, or merely change belief? Must relativity and quantum theory just co-exist or might we find a new theory which unifies the two? To bring such questions into (...) sharper focus, we convened a conference on 'Quantum Physics and the Nature of Reality'. Some issues remain as controversial as ever, but some are being nudged by theory’s secret weapon of experiment. (shrink)

Exceptionally preserved fossils are the product of complex interplays of biological and geological processes including burial, autolysis and microbial decay, authigenic mineralization, diagenesis, metamorphism, and finally weathering and exhumation. Determining which tissues are preserved and how biases affect their preservation pathways is important for interpreting fossils in phylogenetic, ecological, and evolutionary frameworks. Although laboratory decay experiments reveal important aspects of fossilization, applying the results directly to the interpretation of exceptionally preserved fossils may overlook the impact of other key processes that (...) remove or preserve morphological information. Investigations of fossils preserving non-biomineralized tissues suggest that certain structures that are decay resistant are rarely preserved, and decay-prone structures can fossilize, albeit rarely. As we review here, decay resistance is an imperfect indicator of fossilization potential, and a suite of biological and geological processes account for the features preserved in exceptional fossils. Organisms decayed experimentally in seawater have been used as direct analogs for soft-bodied fossil taxa, with fossils representing a snapshot of a particular stage of decay. We argue that numerous geological and biological processes account for fossilization and that all of these should be considered when reconstructing extinct organisms. (shrink)

ObjectiveCochlear explantation for purely elective (e.g. psychological and emotional) reasons is not well studied. Herein, we aim to provide data and expert commentary about elective cochlear implant (CI) removal that may help to guide clinical decision-making and formulate guidelines related to CI explantation.Data sourcesWe address these objectives via three approaches: case report of a patient who desired elective CI removal; review of literature and expert discussion by surgeon, audiologist, bioethicist, CI user and member of Deaf community.Review methodsA systematic review using (...) three scientific online databases was performed. Included articles addressed the benefits and/or complications of cochlear implantation in young children, CI explantation with or without revision surgery and the ethical debate between the medical and Deaf communities on cochlear implantation and explantation.ConclusionsThe medical and audiological perspectives identify a host of risks related to implant removal without reimplantation, including risk from surgery, general anaesthesia, cochlear ossification and poor audiometric outcomes. The member of the deaf community and bioethicist argue that physicians need to guide the principles of beneficence, non-maleficence and patient autonomy. Taken together, patient desires should be seen as paramount, if the patient is otherwise fit for surgery and well informed.Implications for practiceSimilar to the case of device implantation, device explantation should be a multidisciplinary and collaborative decision with the patient and the family’s desires at the centre. While every case is different, we offer a CI explantation discussion to assist in clinical decision-making, patient counselling and education. (shrink)

Pregnant women and their interests have been underrepresented in health research. Little is known about issues relevant to women considering research participation during pregnancy. We performed in-depth interviews with 22 women enrolled in either one of two trials sponsored by the National Institutes of Health to assess the safety and immunogenicity of the H1N1 vaccine during pregnancy. Three themes characterized women’s decisions to participate in research: they valued early access to the vaccine, they perceived a safety advantage when participating in (...) research, and they wanted to help advance scientific knowledge. However, there were also some considerations that would disincline them to participate in research—for instance, a significant risk of maternal or fetal harm, the presence of a placebo arm in a study, or a requirement to significantly change planned therapy or behavior. Pregnant women who participated in the H1N1 vaccine trials viewed research favorably, citing its advantages over standard clinical care. These findings emphasize that access to benefit should guide policy for including pregnant women in research. (shrink)

This study discusses how perceptions of ethics are formed by certified public accountants (CPAs). Theologians are used as a point of comparison. When considering CPA ethical dilemmas, both subject groups in this research project viewed confidentiality and independence as more important than recipient of responsibility and seriousness of breach. Neither group, however, was insensitive to any of the factors presented for its consideration. CPA reactions to ethical dilemmas were governed primarily by provisions of the CPA ethics code; conformity to that (...) code may well be evidence of higher stage moral reasoning. (shrink)

This paper examines an issue that is becoming increasingly relevant as the pressures of a warming planet, changing climate and changing ecosystems ramp up. The broad context for the paper is the intragenerational, intergenerational, and interspecies equity implications of changing the climate and the value orientations of adapting to such change. In addition, the need to stabilize the planetary climate by urgent mitigation of change factors is a foundational ethical assumption. In order to avoid further animal and plant extinctions, or (...) at the very least, their increased vulnerability to becoming rare and endangered; the systematic assisted colonization of “at risk” species is being seriously considered by scientists and managers of biodiversity. The more practical aspects of assisted colonization have been covered in the conservation biology literature; however, the ethical implications of such actions have not been extensively examined. Our discussion of the value issues, using a novel case study approach, will rectify the limited ethical analysis of the issue of assisted colonization of species in the face of climate change pressures. Beyond sustainability ethics, both animal and environmental ethical approaches will be used and intrinsic versus instrumental value orientations in the literature shall form the basis of our discussion. After the application of all the ethical approaches to the case studies, we conclude that without mitigation and the prospect of a future stable climate, assisted colonization will be involved in an inherently unethical process and a “move and lose it” outcome. With mitigation, there is wide-ranging ethical support for assisted colonization. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:A Bibliography of Bertrand Russell. Volume I: Separate Publications, 1896–1990 by Kenneth Blackwell, Harry RujaG. A. Wedeking and A. D. IrvineKenneth Blackwell and Harry Ruja. A Bibliography of Bertrand Russell. Volume I: Separate Publications, 1896–1990. Pp. lvi + 611. Volume II: Serial Publications, 1890–1990. Pp. xiv + 575. Volume III: Indexes. Pp. xi + 305. London: Routledge, 1994. Cloth, $455.00 the set.As Russell remarked: “It is a curious (...) fact that the most indubitably useful books are those most devoid of literary merit; for example, railway timetables and the telephone [End Page 146] book” (Vol. I, p. xlviii). Even so, since it will be agreed immediately that, for anyone interested in learning more about Russell’s writings, this beautifully crafted bibliography will be extremely useful, it would be a disservice to the authors to imply that it has no more literary merit than a railway timetable. The entire project simply has too much style.When Russell’s bibliographers began their task, fewer than 600 publications by Russell were known. By the time of publication they were able to record 181 of Russell’s books, pamphlets and leaflets, 629 contributions to books, pamphlets, and leaflets primarily authored by others, and approximately 3,550 serial publications of various types. Not being content merely to record the details of these publications, the authors follow each publication through its various editions, impressions, reprints, and translations. This is no mean task, given that Russell’s work has been translated into some 47 languages. In addition, the authors cite related pre-publication materials, give sources for rare and difficult-to-find books and documents, and include a comprehensive index. In short, they do nothing less than provide an authoritative, detailed record of Russell’s published work from 1890 to 1990.As the authors also point out, this is “a bibliography not only of Russell’s writings submitted and actually published, but also of certain other texts. Together they can be regarded as his published thoughts” (I: xix). Thus the bibliography mentions not only Russell’s books, articles, and published letters, but published accounts of his speeches, addresses, press conferences, and interviews; book reviews and recommendations (what Russell called “puffs”) for other people’s books; multiple-signatory letters to the editor and other similar documents; published extracts from Russell’s private correspondence and originally unpublished manuscripts; and audio recordings and films. A mark of the bibliography’s completeness is its catalogue of works that have been spuriously attributed to Russell, including two posthumous “spirit communications” (II: 573–74).The authors candidly describe Russell’s reaction when in 1966 he was shown slips of accumulated new entries: “ ‘I am impressed’, he said, ‘but I don’t think it’s worth it’ “ (I: li). Now, after several decades, we are finally in a position to evaluate Russell’s opinion. To do so, users of the bibliography will want to know the answer to three questions: Is the bibliography complete? Is it accurate? Is it easy to use?With regard to the first two of these three questions, the authors have made a commendable effort to balance comprehensiveness with accuracy (see their discussion of some problem cases, “Introduction,” I: xxvi ff.), rightly preferring accuracy to other desiderata. Concerning ease of use, one issue which comes to mind is whether the inclusion of such minor items as political pamphlets, letters to the editor, and statements made at news conferences, are always worth recording, or whether these items simply make the project so large as to be unmanageable. Once again, upon seeing the completed work, the reader will have little doubt that the correct decision has been made. Researchers interested in Russell’s political involvements and their relation to his more theoretical works, for example, will find this an invaluable resource. All in all, we believe that the bibliography will surpass the requirements of even the most demanding of users. It was, pace Russell, definitely worth it. [End Page 147]As with other volumes associated with the Collected Papers of Bertrand Russell project, these three volumes are beautifully typeset and bound. They will be a pleasure to use for both students and scholars alike for generations to... (shrink)

Objective: To develop an approach for seeking informed consent to examine tissues retained from a previous study of sudden infant death syndrome as part of a study on asthma, and to document responses and participation rate.Design: Pilot open-ended approach to 10 volunteer SIDS parents, followed by staged approach to seek consent from the target SIDS families for the asthma study.Participants: Parents of SIDS infants known to SIDS and Kids Victoria and parents of SIDS infants from the 1991–2 SIDS in Victoria (...) case–control study.Main outcomes: Qualitative responses of the piloted parents and study parents, and participation rates.Results: The pilot group responses were used to refine the written material to be provided. Of the 72 families for which contact details were available, 45 gave verbal consent for contact by the Victorian Institute of Forensic Medicine regarding the asthma study, three refused and 24 did not respond to two letters. Thirty-three completed consent forms, all positive for participation in the asthma study, giving a positive response rate of 73% .Conclusions: The use of postmortem tissue for research is acceptable to the next of kin when an approach is sensitive to their concerns and needs and is made by experienced counsellors from a familiar organisation. Despite the painful memories evoked by the approach of the research group, the acceptance rate among those who could be contacted was high. (shrink)

Volume 46, Issue 6, November 2020, Page 727-743.

We examine the possible role played by field angular momentum in two systems of vastly different sizes: (i) the nucleon and (ii) highly magnetic white dwarf stars. For the nucleon we study the restrictions on the nucleon's structure that arise from the requirement that the total field angular (spin, orbital and field angular momentum) should satisfy the standard angular momentum commutation relationship. For the magnetic white dwarfs we argue that the magnetic field may alter the statistics of some fraction of (...) the white dwarf's electrons from fermionic to bosonic. This would effect the stars structure, giving it a smaller than expected radius, and a lower than expected temperature. In some extreme cases one could imagine that this effect could lead to the collapse of the white dwarf into a neutron star despite being below the Chandreshekar limit. (shrink)