The term fuzzy logic is used in this paper to describe an imprecise logical system, FL, in which the truth-values are fuzzy subsets of the unit interval with linguistic labels such as true, false, not true, very true, quite true, not very true and not very false, etc. The truth-value set, , of FL is assumed to be generated by a context-free grammar, with a semantic rule providing a means of computing the meaning of each linguistic truth-value in as a (...) fuzzy subset of [0, 1].Since is not closed under the operations of negation, conjunction, disjunction and implication, the result of an operation on truth-values in requires, in general, a linguistic approximation by a truth-value in . As a consequence, the truth tables and the rules of inference in fuzzy logic are (i) inexact and (ii) dependent on the meaning associated with the primary truth-value true as well as the modifiers very, quite, more or less, etc. (shrink)

I explore some of the ways that assumptions about the nature of substance shape metaphysical debates about the structure of Reality. Assumptions about the priority of substance play a role in an argument for monism, are embedded in certain pluralist metaphysical treatments of laws of nature, and are central to discussions of substantivalism and relationalism. I will then argue that we should reject such assumptions and collapse the categorical distinction between substance and property.

This study examines the outcomes of a four-year faculty learning community (FLC) that aimed to transform departmental ethics curriculum by supporting Earth Sciences faculty members as they ethically inquired into their teaching of ethics and refined existing courses in alignment with an Integrated Community-Engaged Learning and Ethical Reflection (ICELER) framework. We present ethnographic case studies that unpack processes through which three faculty members transformed undergraduate courses. We assembled case studies by triangulating interview data, course artifacts, and faculty reflections. We examine (...) how faculty (1) built awareness around teaching ethics, (2) took responsibility for and made judgments about teaching ethics, (3) experimented by designing and implementing ICELER-inspired courses, and (4) interrogated the outcomes of their ethics teaching, utilizing findings to enhance awareness and revise courses. The paper closes by introducing a model detailing how instructors inquire into ethics teaching and how model components might inspire future educational practice and research. (shrink)

In order to study early human development while avoiding the burdens associated with human embryo research, scientists are redirecting their efforts towards so-called human embryo-like structures (hELS). hELS are created from clusters of human pluripotent stem cells and seem capable of mimicking early human development with increasing accuracy. Notwithstanding, hELS research finds itself at the intersection of historically controversial fields, and the expectation that it might be received as similarly sensitive is prompting proactive law reform in many jurisdictions, including the (...) Netherlands. However, studies on the public perception of hELS research remain scarce. To help guide policymakers and fill this gap in the literature, we conducted an explorative qualitative study aimed at mapping the range of perspectives in the Netherlands on the creation and research use of hELS. This article reports on a subset of our findings, namely those pertaining to (the degrees of and requirements for) confidence in research with hELS and its regulation. Despite commonly found disparities in confidence on emerging biotechnologies, we also found wide consensus regarding the requirements for having (more) confidence in hELS research. We conclude by reflecting on how these findings could be relevant to researchers and (Dutch) policymakers when interpreted within the context of their limitations. (shrink)

Social scientific reasoning (SSR) is essential to social science education and to a democratic society as a whole. Students are challenged to analyze and reason about social problems such as social inequality, crime, and poverty. However, students experience difficulties with SSR. This study addresses the research question: Which design principles can guide teachers in designing lessons that promote social scientific reasoning? In this design-based research, four social science teachers employed a conceptualization of SSR and its levels together with three initial (...) design principles to develop curriculum materials and activities. These design principles and curriculum materials were piloted in two secondary education classes (9th and 10th grades) and evaluated by four social science teachers, four social science teacher educators and 90 students. The study produced six design principles that can promote students’ SSR. In combination with the curriculum materials, those design principles can help develop teachers’ pedagogical content knowledge and guide the design of tasks and units that develop SSR. (shrink)

Causation is at once familiar and mysterious. Neither common sense nor extensive philosophical debate has led us to anything like agreement on the correct analysis of the concept of causation, or an account of the metaphysical nature of the causal relation. Causation: A User's Guide cuts a clear path through this confusing but vital landscape. L. A. Paul and Ned Hall guide the reader through the most important philosophical treatments of causation, negotiating the terrain by taking a set of examples (...) as landmarks. They clarify the central themes of the debate about causation, and cover questions about causation involving omissions or absences, preemption and other species of redundant causation, and the possibility that causation is not transitive. Along the way, Paul and Hall examine several contemporary proposals for analyzing the nature of causation and assess their merits and overall methodological cogency.The book is designed to be of value both to trained specialists and those coming to the problem of causation for the first time. It provides the reader with a broad and sophisticated view of the metaphysics of the causal relation. (shrink)

David Hume's Treatise of Human Nature, composed before the author was twenty-eight years old, was published in 1739 and 1740. In revising the late L.A. Selby-Bigge's edition of Hume's Treatise Professor Nidditch corrected verbal errors and took account of Hume's manuscript amendments. He also supplied the text of theof the Treatise following the original 1740 edition and provided an apparatus of variant readings.

What is the identity of the best regime in Aristotle's Politics? Although there are a few references to the best regime in Book III, the obvious answer is the regime discussed in Books VII and VIII. Aristotle calls it the best regime on numerous occasions and discusses it at great length. Yet, this is not the complete answer. In Book IV Aristotle makes certain curious remarks on the best regime that, on examination, do not fit the best regime of Books (...) VII and VIII. They lead, instead, to the discovery of a systematic, though quiet, teaching on a very different best regime in Book III. The Politics actually contains a complicated yet coherent teaching on two best regimes. Grasping this teaching is key to arriving at a proper understanding of the distinctive character of Aristotle's political thought. (shrink)

I defend a one category ontology: an ontology that denies that we need more than one fundamental category to support the ontological structure of the world. Categorical fundamentality is understood in terms of the metaphysically prior, as that in which everything else in the world consists. One category ontologies are deeply appealing, because their ontological simplicity gives them an unmatched elegance and spareness. I’m a fan of a one category ontology that collapses the distinction between particular and property, replacing it (...) with a single fundamental category of intrinsic characters or qualities. We may describe the qualities as qualitative charactersor as modes, perhaps on the model of Aristotelian qualitative (nonsubstantial) kinds, and I will use the term “properties” interchangeably with “qualities”. The qualities are repeatable and reasonably sparse, although, as I discuss in section 2.6, there are empirical reasons that may suggest, depending on one’s preferred fundamental physical theory, that they include irreducibly intensive qualities. There are no uninstantiated qualities. I also assume that the fundamental qualitative natures are intrinsic, although physics may ultimately suggest that some of them are extrinsic. On my view, matter, concrete objects, abstract objects, and perhaps even spacetime are constructed from mereological fusions of qualities, so the world is simply a vast mixture of qualities, including polyadic properties (i.e., relations). This means that everything there is, including concrete objects like persons or stars, is a quality, a qualitative fusion, or a portion of the extended qualitative fusion that is the worldwhole. I call my view mereological bundle theory. (shrink)

Slippery slopes crop up with startling frequency when controversial moral issues are debated. Generally, those who mount this line of argument appeal to some grim, highly undesirable state of affairs which would—they allege—inevitably ensue were society to sanction certain activities. Their reasoning is often fallacious, offering little more than an easy out for those reluctant to address problematic moral issues with the care and honesty they demand.

Few diagnoses present as great a challenge to one's life as cancer. Many men each year are confronted with a diagnosis of early stage prostate cancer and find themselves making decisions about treatment in the face of side effects that present often devastating effects, including problems controlling one's urine and an inability to perform sexually. In this paper, we explore the narratives of men who, having chosen and undergone treatment for early stage prostate cancer, are living with the consequences. Faced (...) with what Charmaz calls an ‘identity dilemma’, how do these men linguistically construct their identities in the face of challenges to their bodily, personal, and social integrity? Drawing upon theories of social languages and Discourses, we examine how men linguistically resolve the identity dilemmas they encounter and in turn construct an identity in response to a question about the quality of their lives in the face of the adverse event of prostate cancer. We present an analysis of the interview narratives of two men and show how they ‘re-collage’ an identity in the face of fundamental changes in their functioning as men. We argue that these men draw upon alternative discourses to construct themselves as whole, competent, and ‘no less a man'. (shrink)

On the philosophy of Cārvāka, exponent of the materialistic school in Indian philosophy.

I claim that Mill has a theory of poetry which he uses to reconcile nineteenth century associationist psychology, the tendency of the intellect to dissolve associations, and the need for educated members of society to desire utilitarian ends. The heart of the argument is that Mill thinks reading poetry encourages us to feel the feelings of others, and thus to develop pleasurable associations with the pleasurable feelings of others and painful associations with the painful feelings of others. Once the associations (...) are developed, they are supported and maintained by our natural capacity for sympathy and by external elements in society, and provide motivation for the pursuit of utilitarian ends. Further, the additional support causes the associations to be strengthened to the extent that they come to be seen as ‘natural and necessary’, and as such are immune from the dissolving force of the intellect. (shrink)

ABSTRACT:Psychedelics have again become a subject of widespread interest, owing to the reinvigoration of research into their traditional uses, possible medical applications, and social implications. As evidence for psychedelics' clinical potential mounts, the field has increasingly focused on searching for mechanisms to explain the effects of psychedelics and therapeutic efficacy of psychedelic-assisted therapy (PAT). This paper reviews three general frameworks that encompass several prominent models for understanding psychedelics' effects—specifically, neurobiological, psychological, and spiritual frameworks. Following our review, the implications of each (...) framework for ethics and professional competencies in the implementation of psychedelics as medicines are explored. We suggest that interdisciplinary education may be necessary to improve communication between researchers, develop models that effectively incorporate multiple levels of analysis, and facilitate collaboration between professionals with diverse backgrounds in the implementation of psychedelic medicines. We also address pitfalls associated with overemphasis on neuro-mechanisms, risks associated with instigating vulnerable states of consciousness, and hurdles associated with the integration of spiritual frameworks in medicine. Ultimately, as psychedelics push the boundaries of explanatory frameworks focused on one level of analysis, developing new and more useful models to reflect knowledge being produced in this field should be a central aim of psychedelic science going forward. (shrink)

Chercher à établir un commun, ou ce qui est commun à l’humanité, est une question qui bien souvent trouve comme seule résolution une définition claire de l’être humain, doté de caractéristiques et de facultés déterminées. Cette démarche nourrissant déjà amplement le débat philosophique, nous nous concentrerons plutôt sur une reconsidération du problème de la détermination de ce que pourrait être la communauté humaine. Notre travail de recherche a pour objet la nécessité et l’obligation chez K...