We investigate the algebraic structure of the upper semi-lattice formed by the recursively enumerable Turing degrees. The following strong generalization of Lachlan's Nonsplitting Theorem is proved: Given n ≥ 1, there exists an r.e. degree d such that the interval $\lbrack\mathbf{d, 0'}\rbrack \subset\mathbf{R}$ admits an embedding of the n-atom Boolean algebra B n preserving (least and) greatest element, but also such that there is no (n + 1)-tuple of pairwise incomparable r.e. degrees above d which pairwise join to 0' (and (...) hence, the interval $\lbrack\mathbf{d, 0'}\rbrack \subset\mathbf{R}$ does not admit a greatest-element-preserving embedding of any lattice L which has n + 1 co-atoms, including B n + 1 ). This theorem is the dual of a theorem of Ambos-Spies and Soare, and yields an alternative proof of their result that the theory of R has infinitely many one-types. (shrink)

Geoffrey Rose’s prevention paradox points to a tension between two prima facie plausible moral principles: that we should save the greater number and that weshould save the most at risk. This paper argues that a novel moral theory, ex-ante contractualism, captures our intuitions in many prevention paradox cases, regardless of our interpretation of probability claims. However, it goes on to show that it might be impossible to square ex-ante contractualism with all of our moral intuitions. It concludes that even if (...) ex-ante contractualism cannot furnish an entire ethics of risk, it does identify important considerations for any such theory. (shrink)

Geoffrey Rose’s prevention paradox points to a tension between two prima facie plausible moral principles: that we should save the greater number and that weshould save the most at risk. This paper argues that a novel moral theory, ex-ante contractualism, captures our intuitions in many prevention paradox cases, regardless of our interpretation of probability claims. However, it goes on to show that it might be impossible to square ex-ante contractualism with all of our moral intuitions. It concludes that even if (...) ex-ante contractualism cannot furnish an entire ethics of risk, it does identify important considerations for any such theory. (shrink)

In this article, we present results from a literature review of intrinsic, instrumental, and relational values of nature conducted for the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, as part of the Methodological Assessment of the Diverse Values and Valuations of Nature. We identify the most frequently recurring meanings in the heterogeneous use of different value types and their association with worldviews and other key concepts. From frequent uses, we determine a core meaning for each value type, which is (...) sufficiently inclusive to serve as an umbrella over different understandings in the literature and specific enough to help highlight its difference from the other types of values. Finally, we discuss convergences, overlapping areas, and fuzzy boundaries between different value types to facilitate dialogue, reduce misunderstandings, and improve the methods for valuation of nature's contributions to people, including ecosystem services, to inform policy and direct future research. © 2023 The Author(s). Published by Oxford University Press on behalf of the American Institute of Biological Sciences. (shrink)

Allthough small business accounts for over 90% of businesses in U.K. and indeed elsewhere, they remain the largely uncharted area of ethics. There has not been any research based on the perspective of small business owners, to define what echical delemmas they face and how, if at all, they resolve them. This paper explores ethics from the perspective of small business owner, using focus groups and reports on four clearly identifiable themes of ethical delemmas; entrepreneurial activity itself, conflicts of personal (...) values with business needs, social responsibility and the impact of owners' personality on business ethics. The mechanisms for resolving ethical dilemmas is not at all clear, as there appears to be a web of filters which are used in an inter-connected way. However a common starting point for resolving an ethical delemma which involves others is based on identifying who it is (e.g., a friend or institution) and the quality of the relationship with that person. The research yielded a rich source of material on business ethics and it is clear that future researchers must focus on this sector if business ethics is to make significant advances. (shrink)

Published within weeks of Charles Darwin's Origin of Species, Isabelle Duncan's Pre-Adamite Man (1860) is the first full-length treatment of preadamism by an evangelical. Intended as a reconciliation of Genesis and geology, Duncan's work gained immediacy when it was published shortly after the September 1859 revelations that men had walked among the mammoths. Written in the tradition of evangelical 'Christian philosophy', Pre-Adamite Man deploys innovative biblical hermeneutics and recent trends in geology to set out both a biblical preadamite theory, and (...) an unorthodox angelology. Duncan responded to contemporary secular interpretations of geology by pushing evangelical concordist strategies to new frontiers, filling out an acceptance of an ancient earth with new biblically informed catastrophist proposals and extensions of salvation history, while simultaneously retaining a firm commitment to plenary inspiration. The product is a highly readable book that operates both as an accessible treatment of geology and a theological discourse. Running through six printings between 1860 and 1866, the book was reviewed by many of the period's leading journals and created a minor controversy among evangelicals. This study both brings to life this previously neglected episode in scriptural geology, and adds to recent work on Victorian popular science writing. (shrink)

In this paper the coherence of the precautionary principle as a guide to public health policy is considered. Two conditions that any account of the principle must meet are outlined, a condition of practicality and a condition of publicity. The principle is interpreted in terms of a tripartite division of the outcomes of action . Such a division of outcomes can be justified on either “consequentialist” or “deontological” grounds. In the second half of the paper, it is argued that the (...) precautionary principle is not necessarily opposed to risk–cost–benefit analysis, but, rather, should be interpreted as suggesting a lowering of our epistemic standards for assessing evidence that there is a link between some policy and “special bad” outcomes. This suggestion is defended against the claim that it mistakes the nature of statistical testing and against the charge that it is unscientific or antiscientific, and therefore irrational. (shrink)

Background: Despite potential benefits of the return of research results to research participants, the TriCouncil Policy Statement , which reflects Canadian regulatory ethical requirements, does not require this. The policies of Canadian research ethics boards are unknown.Objectives: To examine the policies of Canadian university based REBs regarding returning results to research participants, and to ascertain if the presence/absence of a policy may be influenced by REB member composition.Design: Email survey of the coordinators of Canadian university based REBs to determine the (...) presence/absence of a policy on return of research results to research participants both during an ongoing study and at conclusion. REB coordinators were asked to return a copy of the policy or guidelines and to describe the member composition of their REB.Findings: Of 50 REBs that were contacted 34 responded and 22 met the inclusion criteria. Two had a policy that governed the return of research results while on a study, and seven following the completion of a study. Presence of an ethicist or a lawyer on the REB did not influence the presence/absence of such policies. No REBs had specific guidelines describing how participants should be informed of results.Conclusions: Most REBs did not require researchers to disclose study results to research participants either during or following a study. Thus this study identifies an ethical shortcoming in the conduct of human research in Canada. It has also demonstrated that there are no clear recommendations by REBs to facilitate the return of results to participants following research projects. (shrink)

The practice of prenatal screening for disability is sometimes objected to because of the hurt and offence such practices may cause to people currently living with disabilities. This objection is commonly termed “the expressivist objection”. In response to the objection it is standardly claimed that disabilities are analogous to illnesses. And just as it would be implausible to suppose reduction of the incidence of illnesses such as flu sends a negative message to ill people, so it is not plausible to (...) suppose prevention of disability sends a negative message to disabled people. The expressivist objection hinges, however, upon a view of the relationship between disability and self identity which sees disability as part of the identity of the disabled person, in a way in which illnesses such as flu cannot be. This possibility is generally not considered in critiques of the expressivist objection. In this paper, an “identity claim” to the effect that disabilities can be identity constituting is accepted and the force of the expressivist argument is reconsidered in the light of its acceptance. It is concluded that even when such an identity claim is accepted, the expressivist objection is still not morally compelling. (shrink)

This article argues that an intentional acrostic spanning the first five lines of Propertius’ elegy for Cynthia's birthday (3.10), MANE[T], contributes significantly to the poignancy and purpose of the poem. MANE can be read as māne, ‘in the morning’, or manē, ‘stay!’, both of which emphasize the fleeting nature of dawn—and of Cynthia's youthful beauty. MANET can suggest both ‘[art] remains’ and ‘[death] awaits’. All four of these meanings work together to capture the tension between human transience and artistic immortality. (...) The theme is further enhanced by a balancing reverse telestich at the poem's end, ROSA RVES (‘[a] rose, you will fall to ruin’). (shrink)

There is a growing trend of refusal of blood transfusions from COVID-19 vaccinated donors. We highlight three cases where parents have refused blood transfusions from COVID-19 vaccinated donors on behalf of their children in the setting of congenital cardiac surgery. These families have also requested accommodations such as explicit identification of blood from COVID-19 vaccinated donors, directed donation from a COVID-19 unvaccinated family member, or use of a non-standard blood supplier. We address the ethical challenges posed by these issues. We (...) describe the current screening and safety processes for standard blood donation and explore the importance of donor anonymity and challenges with directed donation and non-standard blood suppliers. We present an ethical framework using the Best Interest Standard, the Zone of Parental Discretion, and the Harm Principle when considering these refusals. Finally, we provide recommendations for how to approach these requests as they potentially become more commonplace in pediatrics. (shrink)

Persistence theories of causation – such as transference theory, conserved-quantity theory, and Douglas Ehring's theory – attempt to analyzecausation in terms of some persisting entityconnecting cause and effect. While mostpersistence accounts are intended as empiricaltheories, this article develops a persistenceanalysis of the concept of causation. The basic idea is that the central concept ofdirect causation can be analyzed in terms ofproperty acquisition. The analysis cohereswith our ordinary causal judgments andprovides a straightforward explanation of thedirection of causation. It also explains whybackwards (...) causation is conceptually problematic. (shrink)

While there is significant consensus that undergraduate medical education should include bioethics training, there is widespread debate about how to teach bioethics to medical students. Educators disagree about course methods and approaches, the topics that should be covered, and the effectiveness and metrics for UME ethics training. One issue that has received scant attention is the timing of bioethics education during medical training. The existing literature suggests that most medical ethics education occurs in the pre-clinical years. Follow-up studies indicate that (...) medical students in their clinical rotations have little recall or ability to apply ethics concepts that were learned in their pre-clinical training. Trainees also report a desire for medical ethics to be taught in the context of practical application, which would suggest that the timing of pre-clinical ethics education is flawed. However, moving bioethics training to the clinical years should not be assumed to be the solution to the problems of recall and theory application. We argue that the effectiveness of timing bioethics education will depend on when medical students witness or experience particular categories of ethical dilemmas during their training. Our overarching hypothesis is that ethics education will be most effective when the bioethics training on a particular topic correlates to experiential exposure to that ethical issue. The purpose of our current study was to describe medical students exposure to particular categories of ethical conflicts, dilemmas, or issues. Our results may help bioethics educators better strategize about the most effective timing of medical ethics training in UME. (shrink)

P¯an.ini’s grammar includes several types of metarules which determine how its operational rules apply. Among them are “traffic rules” which constrain how rules interact with each other in grammatical derivations. These are typically formulated as designating a rule or class of rules asiddha “not effected” (or asiddhavat “as if not effected”) with respect to another rule or class of rules. For economy, the rules so designated are grouped into several sections, whose headings collectively declare them to be asiddha(vat). The biggest (...) such section, under the famous heading 8.2.1 p ¯urvatr¯asiddham, extends from 8.2.1 through the end of the grammar (8.4.68), and is hence called the Trip¯ad¯ı ‘Three Sections’. (shrink)

This paper examines one particular justification for the screening and termination of embryos/fetuses which possess genetic features known to cause disability. The particular case is that put forward in several places by John Harris. He argues that the obligation to prevent needless suffering justifies the prevention of the births of disabled neonates. The paper begins by rehearsing Harris's case. Then, drawing upon claims advanced in a recent paper in the Journal of Medical Ethics, it is subjected to critical scrutiny, focusing (...) on Harris's “suffering claim” .1 It is argued that the suffering claim must be false if understood as an empirical claim. And, even if understood as a conceptual truth, it mistakenly assimilates the concepts of harm and suffering. Finally, again focusing on Harris's recent work in this area, his characterisation of disability as a “harmed condition” is shown not to apply in the case of at least some moderate forms of intellectual disability. (shrink)

There are many ways of combining three letters out of an alphabet of 26; yet still there are overlaps which can confuse meaning. So the first duty of anyone using an acronym is to say what it denotes. Here, POM is “problem-oriented medicine”, EBM is “evidence-based medicine”, and CPD is “continuous professional development”. These designations, familiar as they are to clinicians, define what is meant by these terms, but fall well short of describing them for the general reader, something which (...) must now be done.Problem-oriented medicine, described and advocated by Lawrence Weed,1 is an approach which elicits and categorises the patient's problems, both those described by him or her and those discovered on physical examination or in the course of investigation. The list of problems, with the action proposed for each, forms the basis of the clinical record. This approach has the great merit of focusing on what is actually troubling the patient, and it includes the important task of listening to what he says. All approaches to difficult matters have their limitations; those of POM include the inarticulacy of some patients, the impatience of some doctors, the accumulation of problems as age advances, and the inelasticity of time.Evidence-based medicine has …. (shrink)

In this article we examine ethical aspects of the involvement of children in clinical research, specifically those who are incapable of giving informed consent to participate. The topic is, of course, not a new one in medical ethics but there are some tensions in current guidelines that, in our view, need to be made explicit and which need to be responded to by the relevant official bodies. In particular, we focus on tensions between the World Medical Association Declaration of Helsinki, (...) and the guidance offered by the British Medical Association, the Royal College of Paediatrics and Child Health , and the Council for International Organizations of Medical Sciences. We conclude with a call for these organisations to make their guidance explicit in relation to the World Medical Association Declaration. (shrink)

The current Medicare prospective payment system has many positive incentives for hospitals to control costs. Hospitals are increasing outpatient surgery, decreasing admissions, decreasing length of stay, and decreasing use of ancillary services. These are just the effects that Congress and the Health Care Financing Administration hoped for to save the Medicare trust fund. However, there has been evidence of some adverse outcomes including premature discharge, “dumping” sicker patients and patients without insurance, and adverse impact on hospitals with specialty centers. We (...) examine these issues and present a possible solution based on a new Computerized Severity Index. (shrink)