Summary 1. Ecologists and conservation biologists consider many issues when designing a field study, such as the expected value of the data, the interests of the study species, the welfare of individual organisms and the cost of the project. These different issues or values often conflict; however, neither animal ethics nor environmental ethics provides practical guidance on how to assess trade-offs between them. -/- 2. We developed a decision framework for considering trade-offs between values in ecological research, drawing on the (...) field of ecological ethics. We used a case study of the population genetics of three frog species, in which a researcher must choose between four methods of sampling DNA from the study animals. We measured species welfare as the reduction in population growth rate following sampling, and assessed individual welfare using two different definitions: (i) the level of suffering experienced by an animal, and (ii) the level of suffering combined with loss of future life. -/- 3. Tipping the tails of tadpoles ranked as the best sampling method for species welfare, while collecting whole tadpoles and buccal swabbing of adult frogs ranked best for the first and second definitions of individual welfare, respectively. Toe clipping of adult frogs ranked as the worst sampling method for species welfare and the first definition of individual welfare, and equal worst for the second definition of individual welfare. -/- 4. When considering species and individual welfare simultaneously, toe clipping was clearly inferior to the other sampling methods, but no single sampling method was clearly superior to the other three. Buccal swabbing, collecting tadpoles and tail tipping were all preferred options, depending on the definition of individual welfare and the level of precision with which we assessed species welfare. -/- 5.Synthesis and applications. The decision framework we present can be used by ecologists to assess ethical and other trade-offs when planning field studies. A formal decision analysis makes transparent how a researcher might negotiate competing ethical, financial and practical objectives. Defining the components of the decision in this way can help avoid errors associated with human judgement and linguistic uncertainty. (shrink)
Classical Christian orthodoxy insists that God is Triune: there is only one God, but there are three divine Persons — Father, Son, and Holy Spirit — who are somehow of one substance with one another. But what does this doctrine mean? How can we coherently believe that there is only one God if we also believe that there are three divine Persons? This problem, sometimes called the ‘threeness-oneness problem’ or the ‘logical problem of the Trinity’, is the focus of this (...) interdisciplinary volume. It includes a selection of recent philosophical work on this topic, accompanied by a variety of essays by philosophers and theologians to further the discussion. The book is divided into four parts, the first three dealing in turn with the three most prominent models for understanding the relations between the Persons of the Trinity: Social Trinitarianism, Latin Trinitarianism, and Relative Trinitarianism. Each section includes essays by both proponents and critics of the relevant model. The volume concludes with a section containing essays by theologians reflecting on the current state of the debate. (shrink)
The origins and development of community of philosophical inquiry -- The theoretical landscape -- Philosophising with five year olds -- Creating a community of philosophical inquiry (CoPI) with all ages -- Different methods of group philosophical discussion -- What you need to know to chair a CoPI with six to sixteen year olds -- Implementing CoPI in primary and secondary schools -- CoPI, citizenship, moral virtue, and academic performance with primary and secondary children.
An attempt to re-think, within and for the tradition of Husserl and Heidegger, certain central contributions of Greek thought. Interpretations of the Philebus and of other Platonic and Aristotelian texts concerned with problems arising therefrom are carried out; they culminate in an analysis of the fruitful union of intellectual power and impotence in philosophy. The existentialist framework often provides suggestions for the interpretation of difficult transitions in the classical works; conversely, the adherence to the arguments of the Greek texts strengthens (...) the existentialist position with respect to such concepts as world and rationality.--C. B. (shrink)
This paper assesses branching spacetime theories in light of metaphysical considerations concerning time. I present the A, B, and C series in terms of the temporal structure they impose on sets of events, and raise problems for two elements of extant branching spacetime theories—McCall’s ‘branch attrition’, and the ‘no backward branching’ feature of Belnap’s ‘branching space-time’—in terms of their respective A- and B-theoretic nature. I argue that McCall’s presentation of branch attrition can only be coherently formulated on a (...) model with at least two temporal dimensions, and that this results in severing the link between branch attrition and the ﬂow of time. I argue that ‘no backward branching’ prohibits Belnap’s theory from capturing the modal content of indeterministic physical theories, and results in it ascribing to the world a time-asymmetric modal structure that lacks physical justiﬁcation. (shrink)
In recent years, systematic theologians, historians of theology and philosophers of religion have devoted a great deal of attention to philosophical and theological issues arising in connection with the doctrine of the Trinity. Owing in large part to the heavily philosophical nature of the issues under discussion, both in the contemporary literature and in the relevant historical texts, the topic is fertile ground for serious interdisciplinary conversation.