This long-awaited book replaces Hughes and Cresswell's two classic studies of modal logic: _An Introduction to Modal Logic_ and _A Companion to Modal Logic_. _A New Introduction to Modal Logic_ is an entirely new work, completely re-written by the authors. They have incorporated all the new developments that have taken place since 1968 in both modal propositional logic and modal predicate logic, without sacrificing tha clarity of exposition and approachability that were essential features of their earlier works. The book takes (...) readers from the most basic systems of modal propositional logic right up to systems of modal predicate with identity. It covers both technical developments such as completeness and incompleteness, and finite and infinite models, and their philosophical applications, especially in the area of modal predicate logic. (shrink)

Expressions in a language, whether words, phrases, or sentences, have meanings. So it seems reasonable to suppose that there are meanings that expressions have. Of course, it is fashionable in some philosophical circles to deny this.

Aphantasia is a recently discovered disorder characterised by the total incapacity to generate visual forms of mental imagery. This paper proposes that aphantasia raises important theoretical concerns for the ongoing debate in the philosophy and science of consciousness over the nature of dreams. Recent studies of aphantasia and its neurobehavioral correlates reveal that the majority of aphantasics, whilst unable to produce visual imagery while awake, nevertheless retain the capacity to experience rich visual dreams. This finding constitutes a novel explanandum for (...) theories of dreaming. Specifically, I argue that the recent dream reports of aphantasics constitute an empirical challenge to the emerging family of views which claim that dreams are essentially imaginative experiences, constitutively involving the kinds of mental imagery which aphantasics, ex-hypothesi, lack. After presenting this challenge in the context of Jonathan Ichikawa’s recent arguments for this view, I argue that this empirical challenge may be overcome if the imagination theorist abandons Ichikawa’s account of dreaming in favour of a modified version. This involves the claim that dreams are essentially inactive and constitutively involve non voluntary forms of imagination. I conclude with a suggestion for further research which can test the viability of this alternative hypothesis, and move the debate forward. (shrink)

Much has changed in maternal-fetal medicine since the early 2000s, when the previous ethical frameworks for fetal therapy trials were established. We applaud Hendriks and colleagues for taking on t...

Unlike inert objects, organisms and their cells have the ability to initiate activity by themselves and thus change their properties or states even in the absence of an external cause. This crucial difference led us to search for principles suitable for the study organisms. We propose that cells follow the default state of proliferation with variation and motility, a principle of biological inertia. This means that in the presence of sufficient nutrients, cells will express their default state. We also propose (...) a principle of variation that addresses two central features of organisms, variation and historicity. To address interdependence between parts, we use a third principle, the principle of organization, more specifically, the notion of the closure of constraints. Within this theoretical framework, constraints are specific theoretical entities defined by their relative stability with respect to the processes they constrain. Constraints are mutually dependent in an organized system and act on the default state.Here we discuss the application and articulation of these principles for mathematical modeling of morphogenesis in a specific case, that of mammary ductal morphogenesis, with an emphasis on the default state. Our model has both a biological component, the cells, and a physical component, the matrix that contains collagen fibers. Cells are agents that move and proliferate unless constrained; they exert mechanical forces that act (i) on collagen fibers and (ii) on other cells. As fibers are organized, they constrain the cells’ ability to move and to proliferate. This model exhibits a circularity that can be interpreted in terms of the closure of constraints. Implementing our mathematical model shows that constraints to the default state are sufficient to explain the formation of mammary epithelial structures. Finally, the success of this modeling effort suggests a stepwise approach whereby additional constraints imposed by the tissue and the organism can be examined in silico and rigorously tested by in vitro and in vivo experiments, in accordance with the organicist perspective we embrace. (shrink)

This project was provoked by the almost nonexistent pushback from the Democratic liberal establishment to the (2020) exoneration of Kyle Rittenhouse, despite his acknowledged killing of two Black Lives Matters protesters against the police murder of George Floyd. It builds on three prior articles arguing for the revival of ancient Dionysian practice, Haitian Vodou, and Indigenous South American shamanism to empower leftist revolution. In essence, I propose an assemblage of spiritual practices that are accessible today for the neo-colonized 99% of (...) the global population, by synthesizing and reconstructing three democratic, lower-SES, Indigenous religions, all of which share a militant defiance of their respective tyrannical plutocracies. To avoid cultural appropriation, I center these reconstructed spiritual practices on the figure of the “mage,” a psychosocial healer loosely analogous to a shaman. And the mage’s signature activity, “magic,” I redefine naturalistically as free interpersonal performative action, practiced using two theoretical disciplines (philosophy and psychology) and two practical disciplines chosen by each mage. More precisely, Spirit/Dance channels the “spirits” of dead ancestors, historical figures, legendary heroes, mythical beings, and fictional characters, into the three ultimate objectives of “mindfulness” for psyches/souls, “liberation” for mindful bodies, and “social justice” for liberated communities, indirectly empowering long-term revolution. (shrink)

From the point of view of non-classical logics, Heyting's implication is the smallest implication for which the deduction theorem holds. This book studies properties of logical systems having some of the classical connectives and implication in the neighbourhood of Heyt ing's implication. I have not included anything on entailment, al though it belongs to this neighbourhood, mainly because of the appearance of the Anderson-Belnap book on entailment. In the later chapters of this book, I have included material that might be (...) of interest to the intuitionist mathematician. Originally, I intended to include more material in that spirit but I decided against it. There is no coherent body of material to include that builds naturally on the present book. There are some serious results on topological models, second order Beth and Kripke models, theories of types, etc., but it would require further research to be able to present a general theory, possibly using sheaves. That would have postponed pUblication for too long. I would like to dedicate this book to my colleagues, Professors G. Kreisel, M.O. Rabin and D. Scott. I have benefited greatly from Professor Kreisel's criticism and suggestions. Professor Rabin's fun damental results on decidability and undecidability provided the powerful tools used in obtaining the majority of the results reported in this book. Professor Scott's approach to non-classical logics and especially his analysis of the Scott consequence relation makes it possible to present Heyting's logic as a beautiful, integral part of non-classical logics. (shrink)

In the last decade, the organization of pharmaceutical research on neglected tropical diseases has undergone transformative change. In a context of perceived “market failure,” the development of new medicines is increasingly handled by public-private partnerships. This shift toward hybrid organizational models depends on a particular form of exchange: the sharing of proprietary assets in general and of intellectual property rights in particular. This article explores the paradoxical role of private property in this new configuration of global health research and development. (...) Rather than a tool to block potential competitors, proprietary assets function as a lever to attract others into risky collaborative ventures; instead of demarcating public and private domains, the sharing of property rights is used to increase the porosity of that boundary. This reimagination of the value of property is connected to the peculiar timescape of global health drug development, a promissory orientation to the future that takes its clearest form in the centrality of “virtual” business models and the proliferation of strategies of deferral. Drawing on the anthropological literature on inalienable possessions, we reconsider property’s traditional exclusionary role and discuss the possibility that the new pharmaceutical “commons” proclaimed by contemporary global health partnerships might be the precursor of future enclosures. (shrink)

To commemorate 40 years since the founding of the Journal of Business Ethics, the editors in chief of the journal have invited the editors to provide commentaries on the future of business ethics. This essay comprises a selection of commentaries aimed at creating dialogue around the theme Business versus Ethics?. The authors of these commentaries seek to transcend the age-old separation fallacy :409–421, 1994) that juxtaposes business and ethics/society, posing a forced choice or trade off. Providing a contemporary take on (...) the classical question “if it’s legal is it ethical?”, David Hess explores the role of the law in promoting or hindering stakeholder-oriented purpose and governance structure. Jeffrey Harrison encourages scholars to move beyond the presupposition that businesses are either strategic or ethical and explore important questions at the intersection of strategy and ethics. The proposition that business models might be inherently ethical or inherently unethical in their design is developed by Sheila Killian, who examines business systems, their morality, and who they serve. However, the conundrum that entrepreneurs are either lauded for their self-belief and risk-taking, or loathed for their self-belief and risk-taking, is discussed by M. Tina Dacin and Julia Roloff using the metaphor of taboos and totems. These commentaries seek to explore positions that advocate multiplicity and tensions in which business ethics is not either/or but both. (shrink)

Some recent uses of artificial intelligence for facial recognition, evaluating resumes, and sorting photographs by subject matter have revealed troubling disparities in performance or impact based on the demographic traits of subject populations. These disparities raise pressing questions about how using artificial intelligence can work to promote justice or entrench injustice. Political theorists and philosophers have developed nuanced vocabularies and theoretical frameworks for understanding and adjudicating disputes about what justice requires and what constitutes injustice. The interdisciplinary community committed to understanding (...) and conscientiously using big data could benefit from this work. Thus, in the spirit of encouraging cross-disciplinary dialogue and collaboration, this piece examines contemporary scholarship in political theory and philosophy to illustrate some of the vocabularies and frameworks political theorists and philosophers have developed for thinking about justice and injustice. It then draws on these frameworks to illuminate how the use of artificial intelligence can implicate questions of justice, with a focus on institutional discrimination, structural injustice, and epistemic injustice. Ultimately, the piece argues that the use of artificial intelligence—far from representing a decision to take power out of human hands—represents a novel way of harnessing human power, making questions of justice central to its conscientious undertaking. (shrink)

The paper considers the question of when the operator L of necessity in modal logic can be expressed in terms of the operator meaning it is non-contingent that.

The idea of a role in nursing that includes expertise in ethics has been around for more than 30 years. Whether or not one subscribes to the idea that nursing ethics is separate and distinct from bioethics, nursing practice has much to contribute to the ethical practice of healthcare, and with the strong grounding in ethics and aspiration for social justice considerations in nursing, there is no wonder that the specific role of the nurse ethicist has emerged. Nurse ethicists, expert (...) in nursing practice and the application of ethical theories and concepts, are well positioned to guide nurses through complex ethical challenges. However, there is limited discussion within the field regarding the specific job responsibilities that the nurse ethicist ought to have. The recent appearance of job postings with the title “nurse ethicist” suggest that some healthcare institutions have identified the value of a nurse in the practice of ethics and are actively recruiting. Discomfort about the possibility of others defining the role of the nurse ethicist inspired this paper (and special issue). If the nurse ethicist is to be seen as an integral part of addressing ethical dilemmas and ethical conflicts that arise in healthcare, then nurse ethicists ought to be at the forefront of defining this role. In this paper, we draw upon our own experiences as nurse ethicists in large academic healthcare systems to describe the essential elements that ought to be addressed in a job description for a nurse ethicist practicing in a clinical setting linked to academic programs. Drawing upon our experience and the literature, we describe how we perceive the nurse ethicist adds value to healthcare organizations and teams of professional ethicists. (shrink)

I distinguish between sentences like(1) Last Thursday we drove from Wellington to Waikanae and (2) Last Thursday my copy of Aspects of the Theory of Syntax remained on my bookshelf. Sentence (2) has the subinterval property. If it is true at an interval t it is true at every subinterval of t. (1) lacks this property. (1) reports an event. (2) reports a state. Events do not have the subinterval property but states do have it, and so do objects. If (...) something is a linguist at an interval t then that person is a linguist at all subintervals of t. I argue that exists applies to things which have the subdinterval property, and occurs applies to things which lack it. (shrink)

In the late 1960s, the Federal Bureau of Investigation (FBI), a United States of America (US) intelligence agency, developed what is famously known as Counter Intelligence Program (COINTELPRO). Its mission was to surveil, misinform, misdirect and subvert or destroy black ‘subversive’ militant groups. The main intention of COINTELPRO was to ‘prevent the rise of a messiah’ who could ‘unify, and electrify, the militant black nationalist movement’. This insight is important as it reveals how those outside of black life (FBI) would (...) invoke biblical language to define the possibility of revolution. This article through Black liberation theology seeks to present the idea of messianism as both an experience of Africans and oppressed peoples in the Global North and Global South. The idea of messianism is part of biblical reception in Africa and the African experience of colonialism. In South Africa, messianism would be observed from the perspective of African Christianity, while another form of messianism would be seen from Nat The Prophet Turner as well as the radical identity of Christ in Black liberation theology. The article will not take lightly the idea of surveillance of black militant groups in the same way as the priestly class surveillance Christ ministry. At the same time, the article would reflect on why lunacy is associated with those that seek to subvert oppression. This article seeks to discuss the role of messianism and militancy in Black or African Christianity and highlighting biblical reception and African affectivity. Contribution: This article explores the imaginative ways the Bible or its themes have been used by both the oppressor and the oppressed, often the latter using the Bible for its prerogative, namely, revolution and liberation. (shrink)

BackgroundHealth behavior change is among the top recommendations for improving health of patients with lifestyle-related chronic diseases. An array of behavior change techniques have been developed to support behavior change initiation and maintenance. These BCTs often show limited success when they are not informed by theory, leading to a mismatch between the intention of the BCT and patients’ needs or expectations. Previous studies have identified a number of resources which patients may require to initiate and maintain health behavior change. Indeed, (...) not yet well established is how BCTs address these resources, i.e., the functional mechanisms of BCTs.PurposeProvide a theoretical framework of the functional mechanisms of BCTs for developing and implementing successful interventions for health behavior change.MethodsConceptual review, including literature analysis and synthesis as well as conceptualization of a new model based on the synthesis.ResultsThrough the integration of dual-process models as well as reward and motivation proceeding, i.e., affective, emotional, or intuitive neurobiological cues, into the rational framework of rather linear cognitive or task-related decision progress, we categorize previously identified resources into three distinct sets: external, internal reflective, and internal affective resources. Based on this triad, we classify BCTs according to their functional mechanisms into facilitating, boosting, and nudging. Consequently, we present a simplified Behavior Change Resource Model that is centered on patients’ resources.ConclusionThe model can be applied to develop health behavior change interventions, which promote engagement and empowerment. Future studies should aim at testing the applicability and practicality of the BCRM. (shrink)

Emily Carroll and Parker Crutchfield propose a new inconsistency argument against abortion restrictivism. In response, I raised several objections to their argument. Recently Carroll and Crutchfield have replied and seem to be under the impression that I’m a restrictivist. This is puzzling, since my criticism of their view included a very thinly veiled, but purposely more charitable, anti-restrictivist inconsistency argument. In this response, I explain how Carroll and Crutchfield mischaracterize my position and that of the restrictivist.

In this paper, I will argue that a number of Hume’s claims generate a putative inconsistency with regard to complex ideas and independent existence. I first provide a prima facie argument for the existence of this inconsistency. Then, I examine a number of attempts to rescue Hume from this problem, and argue that each of them fails, before proposing my own solution.

In this article, I analyze survey data from more than 1,000 financial services employees to understand how gender inequality manifests itself in employees' informal networks. I found that even when Black and white women had jobs in which they controlled organizational resources and had ties to powerful employees, they received less work-related help from their network members than did white men. Drawing on status characteristics theory, I explain that network members were less likely to invest in women than in white (...) men because of cultural beliefs that rank women below that of white men. While past research has documented how employers use gender to rank workers and distribute rewards unequally, my research indicates that workers use gender to categorize and rank their network members as well. (shrink)

Sacred Harp singers the world over gather weekly to sing out ofThe Sacred Harp, a collection of shape-note songs first published in 1844. Their tradition is highly ritualized, and it plays an important role in the lives of many participants. Following the implementation of lockdown protocols to combat the COVID-19 pandemic, groups of Sacred Harp singers quickly and independently devised a variety of means by which to sing together online using Zoom, Jamulus, and Facebook Live. The rapidity and creativity with (...) which Sacred Harp singers developed ways to sustain their activities attests to the strength and significance of this community of practice, and in this article I describe each modality and provide an account of how it came to be developed and widely used. As a participant-observer, I completed extensive fieldwork across these digital sites and conducted semi-structured interviews with 22 other singers. I found that online singing practices have reshaped the Sacred Harp community. Many singers who did not previously have the opportunity to participate now have access, while others have lost access due to technological barriers or lack of interest in online activities. At the same time, geographical barriers have disintegrated, and singing organizers must make an effort to maintain local identity. A stable community of singers has emerged in the digital realm, but it is by no means identical to the community that predated the pandemic. I also identify the ways in which online singing has proven meaningful to participants by providing continuity in their personal and communal practice. Specifically, online singing allows participants to access and celebrate their collective memories of the Sacred Harp community, carry out significant rituals, and continue to grow as singers. While no single modality replicates the complete Sacred Harp singing experience, together they function “like pieces in a puzzle”, allowing individual participants to access many of the elements of Sacred Harp singing that are most meaningful to them. (shrink)

Tüm dünyayı etkisi altına alan koronavirüs pandemisinin siyasi tutumlarla ilişkisini öğrenmek ve siyasetin kriz durumlarında halkın tutum ve davranışlarını yönlendirip yönlendirmediğini öğrenmek amacıyla 767 kişiyle çevrimiçi anket yapılmıştır. Yapılan nicel araştırma sonucunda, alınan önleyici tedbirlere uymanın, bu tedbirlerin yerinde oluşuna/haklılığına olan tutumun, aşı olma niyetinin ve aşının koruyuculuğuna olan inancın siyasi görüşlere göre farklılaştığı bulunmuştur. Ayrıca katılımcıların yapılan Covid-19 açıklamaları bakımından siyasi partilerine, parti temsilcilerinden daha çok güvendikleri, alınan önlem ve tedbirleri kısmen yerinde/haklı buldukları ve çok büyük çoğunluğun bu önlemlere (...) uyduğu görülmüştür. Araştırma sonucunda virüsün kökenine yönelik inançlar bakımından virüsün gerçek olduğuna inanıldığı, ortaya çıkış nedeni bakımından ise ülkelerin ekonomilerini kötüleştirmek ve dünya nüfusunu azaltmak için ortaya çıktığına inanıldığı görülmüştür. Araştırmadan çıkan bir başka sonuç ise katılımcıların televizyon, dergi ve gazetelerin ideolojik nedenlerle ve siyasi yanlılıklarına bağlı olarak virüs haberlerini halka farklı yansıttığını düşündükleridir. Sosyal medyadaki haberlerin ise yanıltıcı, yanlış olduğu görüşündelerdir. Bu çalışma sonucunda salgın hastalık, afet, savaş, ekonomik krizler gibi olağanüstü durumlarda siyasetin, siyasi görüşlerin dikkate alınmasının hem krizin üstesinden gelmede hem de toplumun tüm üyelerini kapsamada önemli bir rol oynayacağı vurgulanmaktadır. (shrink)

We review major developmental evidence on the continuity from action to gesture to word and sign in human children, highlighting the important role of caregivers in the development of multimodal communication. In particular, the basic issues considered here and contributing to the current debate on the origins and development of the language-ready brain are: (1) links between early actions, gestures and words and similarities in representational strategies; (2) importance of multimodal communication and the interplay between gestures and spoken words; (3) (...) interconnections between early actions, gestures and signs. The innovation of this report is in connecting these themes together to relevant findings from studies on children between 6 and 36 months of age and highlighting interesting parallels in studies on ape communicative behavior. (shrink)

This study examined cancer patients’ perceived emotional and informational support from a variety of interpersonal and media sources. We recruited patients from cancer patient association websites and online cancer forums and asked them to report to what extent they received support from interpersonal and media sources. Patients rated professional sources and personal sources as nearly equal sources of emotional support; however, professional sources were rated as significantly greater sources of informational support. Although family and oncologists were the most mentioned interpersonal (...) sources of support, they were also the most mentioned disappointing sources. Of the media sources, online interaction sources were rated as nearly equivalent sources of emotional support as interpersonal sources. That patients perceived emotional support, not only informational support, from various media sources is promising since interpersonal sources can be disappointing to some patients. (shrink)

Comparative risk assessment is playing an ever-increasing role in environmental policy priority setting, as manifested in national and numerous subnational comparative risk projects. It is widely accepted that public values, interests, and concerns should play an important role in CRA. However, the philosophical basis for public involvement in CRA has not been adequately explored, nor have comparative risk projects always made explicit their rationales for public involvement. The author examines the political, normative, and epistemic rationales for public involvement and explores (...) the case for public involvement in the making of ethical, valuation, and evidentiary judgments. The author considers key issues each rationale raises, problems eachfaces, and some of the implications of each for specific aspects of CRA. (shrink)

Ethical climate (EC) has been broadly described as how well institutions respond to ethical issues. Developing a tool to study and evaluate EC that aims to achieve sustained improvements requires a contemporary framework with identified relevant drivers. An extensive literature review was performed, reviewing existing EC definitions, tools and areas where EC has been studied; ethical challenges and relevance of EC in contemporary paediatric intensive care (PIC); and relevant ethical theories. We surmised that existing EC definitions and tools designed to (...) measure it fail to capture nuances of the PIC environment, and sought to address existing gaps by developing an EC framework for PIC founded on ethical theory. In this article, we propose a Paediatric Intensive Care Ethical Climate (PICEC) conceptual framework and four measurable domains to be captured by an assessment tool. We define PICEC as the collective felt experience of interdisciplinary team members arising from those factors that enable or constrain their ability to navigate ethical aspects of their work. PICEC both results from and is influenced by how well ethical issues are understood, identified, explored, reflected on, responded to and addressed in the workplace. PICEC encompasses four, core inter-related domains representing drivers of EC including: (1) organisational culture and leadership; (2) interdisciplinary team relationships and dynamics; (3) integrated child and family-centred care; and (4) ethics literacy. Future directions involve developing a PICEC measurement tool, with implications for benchmarking as well as guidance for, and evaluation of, targeted interventions to foster a healthy EC. (shrink)

Truth of x (independently of any description of x) that it is f. A property f which holds of x but is not per se of x is said to hold per accidens of x. The essence of an individual is the sum of its per se properties. We can formulate the following: doctrine a: concrete individuals do not have essences though abstract entities do. Doctrine b: concrete individuals have essences but they do not individuate, whereas abstract entities have essences (...) which do individuate. Assumption i: we shall say that a thing exists insofar as it has an essence. Assumption ii: we shall say that we know a thing when we know what its per se properties are. We argue that plato held doctrine a and aristotle doctrine b (with assumptions i and ii). (edited). (shrink)