Although the word 'sustainability' is used broadly, scientific approaches to sustainability fall into one of two competing paradigms. Following the influential Brundtland report of 1987. some theorists identify sustainability with some form of resource availability, and develop indicators for sustainability that stress capital depletion. This approach has spawned debates about the intersubstitutivity of capitals, with many environmental theorists arguing that at some point, depletion of natural capital cannot be offset by increases in human or social capital. The alternative approach is (...) grounded in stock and flow systems systems modeling, and defines sustainability through indicators that determine whether the system structure is robust (e.g. resists perturbation), resilient (recovers after disruption) and adaptive (capable of change in response to external conditions). Both paradigms have applications in economics and ecology. (shrink)

BackgroundIn the Canadian Alliance for Healthy Hearts and Minds (CAHHM) cohort, participants underwent magnetic resonance imaging (MRI) of the brain, heart, and abdomen, that generated incidental findings (IFs). The approach to managing these unexpected results remain a complex issue. Our objectives were to describe the CAHHM policy for the management of IFs, to understand the impact of disclosing IFs to healthy research participants, and to reflect on the ethical obligations of researchers in future MRI studies.MethodsBetween 2013 and 2019, 8252 participants (...) (mean age 58 ± 9 years, 54% women) were recruited with a follow-up questionnaire administered to 909 participants (40% response rate) at 1-year. The CAHHM policy followed a restricted approach, whereby routine feedback on IFs was not provided. Only IFs of severe structural abnormalities were reported.ResultsSevere structural abnormalities occurred in 8.3% (95% confidence interval 7.7–8.9%) of participants, with the highest proportions found in the brain (4.2%) and abdomen (3.1%). The majority of participants (97%) informed of an IF reported no change in quality of life, with 3% of participants reporting that the knowledge of an IF negatively impacted their quality of life. Furthermore, 50% reported increased stress in learning about an IF, and in 95%, the discovery of an IF did not adversely impact his/her life insurance policy. Most participants (90%) would enrol in the study again and perceived the MRI scan to be beneficial, regardless of whether they were informed of IFs. While the implications of a restricted approach to IF management was perceived to be mostly positive, a degree of diagnostic misconception was present amongst participants, indicating the importance of a more thorough consent process to support participant autonomy.ConclusionThe management of IFs from research MRI scans remain a challenging issue, as participants may experience stress and a reduced quality of life when IFs are disclosed. The restricted approach to IF management in CAHHM demonstrated a fair fulfillment of the overarching ethical principles of respect for autonomy, concern for wellbeing, and justice. The approach outlined in the CAHHM policy may serve as a framework for future research studies.Clinical trial registrationhttps://clinicaltrials.gov/ct2/show/nct02220582. (shrink)

Don Ihde has characterized his philosophy as "phenomenology + pragmatism." This article argues that Ihde's pragmatism can be understood as consistency with two philosophical commitments from the first generation of American pragmatists (e.g. Peirce, James, Dewey and Addams). First, Ihde's notion of embodiment relations for tools and techniques is consistent with the organism-environment relational epistemology of these thinkers. Second, his desire to dissociate himself from romantic and neo-idealist readings of the phenomenological tradition link him with their naturalism.

Accelerating Turing machines have attracted much attention in the last decade or so. They have been described as “the work-horse of hypercomputation” (Potgieter and Rosinger 2010: 853). But do they really compute beyond the “Turing limit”—e.g., compute the halting function? We argue that the answer depends on what you mean by an accelerating Turing machine, on what you mean by computation, and even on what you mean by a Turing machine. We show first that in the current literature the term (...) “accelerating Turing machine” is used to refer to two very different species of accelerating machine, which we call end-stage-in and end-stage-out machines, respectively. We argue that end-stage-in accelerating machines are not Turing machines at all. We then present two differing conceptions of computation, the internal and the external, and introduce the notion of an epistemic embedding of a computation. We argue that no accelerating Turing machine computes the halting function in the internal sense. Finally, we distinguish between two very different conceptions of the Turing machine, the purist conception and the realist conception; and we argue that Turing himself was no subscriber to the purist conception. We conclude that under the realist conception, but not under the purist conception, an accelerating Turing machine is able to compute the halting function in the external sense. We adopt a relatively informal approach throughout, since we take the key issues to be philosophical rather than mathematical. (shrink)

Justice is a natural virtue. Well-functioning humans are just, as are well-ordered human societies. Roughly, this means that in a well-ordered society, just humans internalize the laws and social norms (the nomoi)--they internalize lawfulness as a disposition that guides the way they relate to other humans. In societies that are mostly well-ordered, with isolated zones of substantial dysfunction, the nomoi are limited to those norms that are not clearly inconsistent with the function of law--to create the conditions for human flourishing. (...) In a radically dysfunctional society, humans are thrown back on their own resources--doing the best they can in circumstances that may require great practical wisdom to avoid evil and achieve good. Justice is naturally good for humans--it is part and partial of human flourishing. All of these are natural ethical facts. "Natural Justice" develops these claims in four stages. Part I contextualizes the claim that justice is a natural virtue in relationship to David Hume's famous argument about deriving ought from is, G. E. Moore's open-question argument, and the so-called fact-value distinction. The upshot of the discussion in part I is the claim that there are no clearly decisive objections to existence of natural ethical facts. Part II traces the movement from neo-Aristotelian virtue ethics to virtue jurisprudence by articulating a theory of the judicial virtues. Among these are the virtues of practical wisdom and of justice. Practical wisdom or phronesis is best understood on the model of moral vision, which in the context of law is legal vision or situation sense. The virtue of justice is best understood as lawfulness. Just humans are law-abiding or nomimos--in that they internalize the widely shared and deeply held social norms of their social groups. This part concludes with the claim that a legally correct decision is the decision that characteristically would be rendered by a fully virtuous judge under the circumstances of the case. Part III argues that natural justice can be understood on the model of natural goodness as articulated in the work of Philippa Foot and Michael Thompson. The intuitive idea is that justice as lawfulness is naturally good for reason--using social creatures in human circumstances. This part also articulates and responds to a variety of objections. Part IV concludes by articulating the sense in which an aretaic theory of law that incorporates a natural virtue of justice as lawfulness can be viewed as an expression of the natural law tradition. The natural law idea that an unjust enactment is not a true law corresponds to two senses in which positive laws can fail to be nomoi (in the technical sense specified by virtue jurisprudence). First, a given enactment may contravene deeply held and widely shared social norms. Second, such enactments may be fundamentally inconsistent with the purpose of law--the promotion of human flourishing. (shrink)

Introduction Few areas of social inquiry are more exciting and important, and yet at the same time more marked by controversy and dispute, than the area ...

Commodification and Secondary Rationalization.

Formal, informal and material institutions constitute the framework for human interaction and communicative practice. Three ideas from institutional theory are particularly relevant to technical change. Exclusion cost refers to the effort that must be expended to prevent others from usurping or interfering in one’s use or disposal of a given good or resource. Alienability refers to the ability to tangibly extricate a good or resource from one setting, making it available for exchange relations. Rivalry refers to the degree and character (...) of compatibility in various uses for goods. The paper closes with a note on how attention to these factors might be useful ways to conceptualize what Langdon Winner has called “the technological constitution of society,” and what Andrew Feenberg has theorized as “secondary rationalization,” as well as within more practical contexts of technical research, development and design. (shrink)

Many arguments for and against nuclear power can be analyzed according to a matrix of logically competing claims on the need and safety of nuclear power. Logical analysis of the arguments reveals their philosophical basis and contributes to an understanding of their explanatory appeal. The evidential value of claims made in the arguments of both supporters and opponents depends upon familiar issues in the philosophy of language and the philosophy of science.

"It is the purpose of this article to attempt to re-examine the account of Thrasymachus' doctrine in Plato's Republic, and to show how it can form a self-consistent whole. [...] In this paper it is maintained that Thrasymachus is holding a form of [natural right]." Note: Volume 40 = new series 9.

This book offers an introduction to the Sophists of fifth-century Athens and a new overall interpretation of their thought. Since Plato first animadverted on their activities, the Sophists have commonly been presented as little better than intellectual mountebanks - a picture which Professor Kerferd forcefully challenges here. Interpreting the evidence with care, he shows them to have been part of an exciting and historically crucial intellectual movement. At the centre of their teaching was a form of relativism, most famously expressed (...) by Protagoras as 'Man is the measure of all things', and which they developed in a wide range of views - on knowledge and argument, virtue, government, society, and the gods. On all these subjects the Sophists did far more than simply provoke Plato to thought. Their contributions were substantial and serious; they inaugurated the debate on many central philosophical questions and decisively shifted the focus of philosophical attention from the cosmos to man. (shrink)

We explore psychological contracts as mechanisms by which individuals gain influence in organizations. Using two distinct research settings and longitudinal analysis, we demonstrate that ideological contracts endow individuals with increased centrality in the organization’s influence network. More generally, we propose that an important outcome of different psychological contract types may be how they affect the nature of influence in organizations.

All-encompassing text examines every aspect of coma from neurochemistry, monitoring, and treatments to prognostic factors.