"Biodiversity prospecting" has been touted as a mechanism for both discovering new pharmaceutical products and saving endangered ecosystems. It is unclear what values may arise from such activities, however. Evidence from transactions is incomplete and existing theoretical models are flawed. We calculate an upper bound on the value of the "marginal species." Even under favorable assumptions this bound is modest. Slightly modified assumptions lead to drastically lower estimates. We extend our findings to the value of the marginal hectare of habitat (...) and find that the incentives for habitat conservation generated by private pharmaceutical research are also, at best, very modest. (shrink)

This work is primarily concerned with Hume's arguments concerning the respective roles of reason and passion in moral decisions. Thus, the major part of the work deals with section I of Part I of Book III of the Treatise, where Hume argues that moral distinctions are not derived from reason. But in discussing this section, I have had to take into account most ofthe other sections of Book III, and some important ones from Book II of the Treatise and the (...) Enquiry Concerning the Principles of Morals. Omissions, however, are noticeable. While I have gone into great detail on Parts I and II ofthe Treatise of Morals, I have omitted any discussion of Part III. I have not discussed everything Hume has to say on ethics, or even everything in Book III of the Treatise. I have placed certain limits on myself in writing this work. I attempt to point out only what is central to Hume's ethics, and this I believe to be the first section of Book III, and to show how certain assumptions and conclusions of this section underlie the rest of Hume's considerations on ethics. Thus, I have tried to show that Hume's discussion of the artificial virtues necessarily follows from the assump tions and conclusions of section I. But I leave it to the reader, in his further study of Hume, to apply my points to other sections of Hume that I have not discussed. (shrink)

This article focuses on Bretherton’s treatment of Pentecostalism and Black Power and how they conceive and challenge notions of democracy, citizenship and capitalism. Recognising the ‘tensional’ relationship between democracy and Christianity, I explore his treatment of Pentecostalism and capitalism. I am sympathetic to Bretherton’s analysis of the socio-political transformation Pentecostalism offers, but point to regressive influences associated with the ‘prosperity gospel’. Relating his treatment of Black Power to the wider ‘Black radical tradition’, I conclude with reference to political activism in (...) the UK. (shrink)

A review‐article of Julius Stone, Legal System and Lawyers' Reasonings, Stanford, University Press Herbert Wechsler, Principles, Politics and Fundamental Law, Harvard University Press H. L. A. Hart, The Concept of Law, Oxford University Press Richard A. Wasserstrom, The Judicial Decision, Toward a Theory of Legal Justification, Stanford University Press Judith N. Shklar, Legalism, Harvard University Press.

Research indicates that positive relationships with fellow church members are associated with better mental health. However, far less research has focused on the relationship between negative interaction with fellow church members and mental health outcomes. The purpose of this study is to examine the relationship between church-based negative interaction and depressive symptoms with data from a nationwide sample of older Mexican Americans. Statistically significant findings were found for the following core relationships in our study model: older Mexican Americans who encounter (...) negative interaction with fellow church members experience more doubts about their faith; older Mexican Americans who experience more doubts about their faith are more likely to expect transgressors to perform acts of contrition ; and older Mexican Americans who require transgressors to perform acts of contrition are more likely to experience symptoms of depression. Subsequent empirical analyses provide support for each of these relationships. (shrink)

Some researchers maintain that one of the primary functions of religion is to help individuals develop a strong sense of connectedness with other people. However, there is little research on how a sense of connectedness arises. The purpose of this study is to examine this issue. A conceptual model is developed to test the following key hypotheses: blacks are more likely than whites to affiliate with Conservative Christian denominations; Conservative Christians attend worship services more often than individuals in other faith (...) traditions; people who go to church more often are more likely to receive informal spiritual support ; individuals who receive more spiritual support are more likely to read religious literature and watch or listen to religious programs; and people who engage in these private religious practices are more likely to feel a close sense of religiously based connectedness with others. Data from a nationwide longitudinal survey provides support for each hypothesis. (shrink)

The Gauḍīya Vaiṣṇava tradition emerged within the context of Muslim political dominance in Bengal. As such, perceptions of Muslims embedded within Gauḍīya literature are part and parcel of their worldview. Muslims, however, have to construct perceptions of Gauḍīya Vaiṣṇavas from the ground up, utilizing scriptural references emerging in a distinctively different milieu and putting them into conversation with scholarly methodologies for cross-cultural engagement. This paper articulates a contemporary method for Muslim engagement with Gauḍīya Vaiṣṇavas that is rooted in a decolonial (...) solidarity of respect for the internal logics of religious traditions. (shrink)

The purpose of this study is to assess the relationship between involvement in three aspects of congregational life and spiritual growth. In addition, an effort is made to see if spiritual growth may, in turn, affect health. A latent variable model was developed to test the following hypotheses: individuals who attend worship services more often, attend Bible study and prayer group meetings more frequently, and individuals who receive more spiritual support from fellow church members will be more likely to report (...) they have experienced spiritual growth; people who experience more spiritual growth will be more likely to derive a deeper sense of meaning in life; and individuals who have developed a deeper sense of meaning in life will enjoy better health. Data from the U.S. Congregational Life Survey suggests that spiritual support has the stronger relationship with spiritual growth than either worship service attendance or involvement in formal church groups. The findings further reveal that greater spiritual growth is associated with a deeper sense of meaning in life and meaning, in turn, is associated with better health. (shrink)

In the past two to three decades health behavior scientists have increasingly emphasized affect-related concepts (including, but not limited to emotion) in their attempts to understand and facilitate change in important health behaviors, such as smoking, eating, physical activity, substance abuse, and sex. This article provides a narrative review of this burgeoning literature, including relevant theory and research on affective response (e.g., hedonic response to eating and drug use), incidental affect (e.g., work-related stress as a determinant of alcohol use), affect (...) processing (e.g., anticipated regret for illicit sex or skipping an exercise session), and affectively charged motivation (e.g., cigarette craving). An integrative dual-processing framework is presented that suggests pathways through which affect-related concepts may interrelate to influence health behavior. (shrink)

Machine learning algorithms may radically improve our ability to diagnose and treat disease. For moral, legal, and scientific reasons, it is essential that doctors and patients be able to understand and explain the predictions of these models. Scalable, customisable, and ethical solutions can be achieved by working together with relevant stakeholders, including patients, data scientists, and policy makers.

Research indicates that greater involvement in religion may be associated with better physical health. The purpose of this study is to see if the satisfaction of spiritual needs is associated with health. This model that contains the following core hypotheses: Individuals who attend church more often are more likely to receive spiritual support from fellow church members than people who attend worship services less frequently ; receiving more spiritual support is associated with stronger feelings of belonging in a congregation; individuals (...) who feel they belong in their congregations are more likely to feel their spiritual needs have been met; and people who feel their spiritual needs have been met are more likely to rate their health in a favorable manner. The data provide support for each of these relationships. (shrink)

The nonlinear differential equation governing the periodic motion of the one-dimensional, undamped, and unforced cubic-quintic Duffing oscillator is solved exactly by obtaining the period and the solution. The period is given in terms of the complete elliptic integral of the first kind and the solution involves Jacobian elliptic functions. We solve the cubic-quintic Duffing equation under arbitrary initial conditions. Physical applications are provided. The solution to the mixed parity Duffing oscillator is also formally derived. We illustrate the obtained results with (...) concrete examples. We give high accurate trigonometric approximations to the Jacobian function cn. (shrink)

Colour has often been supposed to be a subjective property, a property to be analysed orretly in terms of the phenomenological aspects of human expereince. In contrast with subjectivism, an objectivist analysis of color takes color to be a property objects possess in themselves, independently of the character of human perceptual expereince. David Hilbert defends a form of objectivism that identifies color with a physical property of surfaces - their spectral reflectance. This analysis of color is shown to provide (...) a more adequate account of the features of human color vision than its subjectivist rivals. The author's account of colro also recognises that the human perceptual system provides a limited and idiosyncratic picture of the world. These limitations are shown to be consistent with a realist account of colour and to provide the necessary tools for giving an analysis of common sense knowledge of color phenomena. (shrink)

The strongest arguments for the permissibility of geoengineering (also known as climate engineering) rely implicitly on non-ideal theory—roughly, the theory of justice as applied to situations of partial compliance with principles of ideal justice. In an ideally just world, such arguments acknowledge, humanity should not deploy geoengineering; but in our imperfect world, society may need to complement mitigation and adaptation with geoengineering to reduce injustices associated with anthropogenic climate change. We interpret research proponents’ arguments as an application of a particular (...) branch of non-ideal theory known as “clinical theory.” Clinical theory aims to identify politically feasible institutions or policies that would address existing (or impending) injustice without violating certain kinds of moral permissibility constraints. We argue for three implications of clinical theory: First, conditional on falling costs and feasibility, clinical theory provides strong support for some geoengineering techniques that aim to remove carbon dioxide from the atmosphere. Second, if some kinds of carbon dioxide removal technologies are supported by clinical theory, then clinical theory further supports using those technologies to enable “overshoot” scenarios in which developing countries exceed the cumulative emissions caps that would apply in ideal circumstances. Third, because of tensions between political feasibility and moral permissibility, clinical theory provides only weak support for geoengineering techniques that aim to manage incoming solar radiation. (shrink)

High-level perception--”the process of making sense of complex data at an abstract, conceptual level--”is fundamental to human cognition. Through high-level perception, chaotic environmen- tal stimuli are organized into the mental representations that are used throughout cognitive pro- cessing. Much work in traditional artificial intelligence has ignored the process of high-level perception, by starting with hand-coded representations. In this paper, we argue that this dis- missal of perceptual processes leads to distorted models of human cognition. We examine some existing artificial-intelligence models--”notably (...) BACON, a model of scientific discovery, and the Structure-Mapping Engine, a model of analogical thought--”and argue that these are flawed pre- cisely because they downplay the role of high-level perception. Further, we argue that perceptu- al processes cannot be separated from other cognitive processes even in principle, and therefore that traditional artificial-intelligence models cannot be defended by supposing the existence of a --œrepresentation module--� that supplies representations ready-made. Finally, we describe a model of high-level perception and analogical thought in which perceptual processing is integrated with analogical mapping, leading to the flexible build-up of representations appropriate to a given context. (shrink)

Modeling emotion processes remains a conceptual and methodological challenge in affective sciences. In responding to the other target articles in this special section on “Emotion and the Brain” and the comments on our article, we address the issue of potentially separate brain networks subserving the functions of the different emotion components. In particular, we discuss the suggested role of component synchronization in producing information integration for the dynamic emergence of a coherent emotion process, as well as the links between incentive (...) salience and concern-relevance in the elicitation of emotion. (shrink)

Comprehensive, authoritative, up-to-date, and easy-to-use, The Oxford Companion to Emotion and the Affective Sciences is an indispensable resource for all who wish to find out about theories, concepts, methods, and research findings in this rapidly growing interdisciplinary field.

Some types of solar radiation management (SRM) research are ethically problematic because they expose persons, animals, and ecosystems to significant risks. In our earlier work, we argued for ethical norms for SRM research based on norms for biomedical research. Biomedical researchers may not conduct research on persons without their consent, but universal consent is impractical for SRM research. We argue that instead of requiring universal consent, ethical norms for SRM research require only political legitimacy in decision-making about global SRM trials. (...) Using Allen Buchanan & Robert Keohane's model of global political legitimacy, we examine several existing global institutions as possible analogues for a politically legitimate SRM decision-making body. (shrink)

Climate engineering (CE), the intentional modification of the climate in order to reduce the effects of increasing greenhouse gas concentrations, is sometimes touted as a potential response to climate change. Increasing interest in the topic has led to proposals for empirical tests of hypothesized CE techniques, which raise serious ethical concerns. We propose three ethical guidelines for CE researchers, derived from the ethics literature on research with human and animal subjects, applicable in the event that CE research progresses beyond computer (...) modeling. The Principle of Respect requires that the scientific community secure the global public's consent, voiced through their governmental representatives, before beginning any empirical research. The Principle of Beneficence and Justice requires that researchers strive for a favorable risk–benefit ratio and a fair distribution of risks and anticipated benefits, all while protecting the basic rights of affected individuals. Finally, the Minimization Principle requires that researchers minimize the extent and intensity of each experiment by ensuring that no experiments last longer, cover a greater geographical extent, or have a greater impact on the climate, ecosystem, or human welfare than is necessary to test the specific hypotheses in question. Field experiments that might affect humans or ecosystems in significant ways should not proceed until a full discussion of the ethics of CE research occurs and appropriate institutions for regulating such experiments are established. (shrink)

Many commentators fear that climate engineering research might lead policy-makers to reduce mitigation efforts. Most of the literature on this so-called ‘moral hazard’ problem focuses on the prediction that climate engineering research would reduce mitigation efforts. This paper focuses on a related ethical question: Why would it be a bad thing if climate engineering research obstructed mitigation? If climate engineering promises to be effective enough, it might justify some reduction in mitigation. Climate policy portfolios involving sufficiently large or poorly planned (...) reductions in mitigation, however, could lead to an outcome that would be worse than the portfolio that would be chosen in the absence of further climate engineering research. This paper applies three ethical perspectives to describe the kinds of portfolios that would be worse than that ‘baseline portfolio’. The literature on climate engineering identifies various mechanisms that might cause policy-makers to choose these inferior portfolios, but it is difficult to know in advance whether the existence of these mechanisms means that climate engineering research really would lead to a worse outcome. In the light of that uncertainty, a precautionary approach suggests that researchers should take measures to reduce the risk of mitigation obstruction. Several such measures are suggested. (shrink)

Evidence suggests that psychedelics bring about their therapeutic outcomes in part through the subjective or qualitative effects they engender and how the individual interprets the resulting experiences. However, psychedelics are contraindicated for individuals who have been diagnosed with certain mental illnesses, on the grounds that these subjective effects may be disturbing or otherwise counter-therapeutic. Substantial resources are therefore currently being devoted to creating psychedelic substances that produce many of the same biological changes as psychedelics, but without their characteristic subjective effects. (...) In this article, we consider ethical issues arising from the prospect of such potential “nonsubjective” psychedelics. We are broadly supportive of efforts to produce such substances for both scientific and clinical reasons. However, we argue that such nonsubjective psychedelics should be reserved for those special cases in which the subjective effects of psychedelics are specifically contraindicated, whereas classic psychedelics that affect subjective experience should be considered the default and standard of care. After reviewing evidence regarding the subjective effects of psychedelics, we raise a number of ethical concerns around the prospect of withholding such typically positive, meaningful, and therapeutic experiences from most patients. (shrink)

A number of ways of taxonomizing human learning have been proposed. We examine the evidence for one such proposal, namely, that there exist independent explicit and implicit learning systems. This combines two further distinctions, (1) between learning that takes place with versus without concurrent awareness, and (2) between learning that involves the encoding of instances (or fragments) versus the induction of abstract rules or hypotheses. Implicit learning is assumed to involve unconscious rule learning. We examine the evidence for implicit learning (...) derived from subliminal learning, conditioning, artificial grammar learning, instrumental learning, and reaction times in sequence learning. We conclude that unconscious learning has not been satisfactorily established in any of these areas. The assumption that learning in some of these tasks (e.g., artificial grammar learning) is predominantly based on rule abstraction is questionable. When subjects cannot report the rules that govern stimulus selection, this is often because their knowledge consists of instances or fragments of the training stimuli rather than rules. In contrast to the distinction between conscious and unconscious learning, the distinction between instance and rule learning is a sound and meaningful way of taxonomizing human learning. We discuss various computational models of these two forms of learning. (shrink)

There are serious reasons for accepting each of these propositions individually but there are apparently insurmountable difficulties with accepting all three of them simultaneously if we assume that color is a single property. 1) and 2) together seem to imply that there is some property which all organisms with color vision can see and 3) seems to imply that there can be no such property. If these implications really are valid then one or more of these propositions will have to (...) be rejected in spite of whatever reasons can be given for their apparent acceptability. Before going on to discuss possible resolutions of this apparent contradiction it is worth pointing out there our three propositions are not all of a kind. Proposition 1) is a metaphysical thesis about the ontological status of color and proposition 3) is an empirical thesis about what properties organisms with color vision are capable of detecting. If you accept 1) then 2) will appear to verge on the trivial, but if 1) is denied then the status of 2) will appear more problematic. In what follows I will have more to say about why we either should or should not accept all three of these propositions. (shrink)

A number of ways of taxonomizing human learning have been proposed. We examine the evidence for one such proposal, namely, that there exist independent explicit and implicit learning systems. This combines two further distinctions, between learning that takes place with versus without concurrent awareness, and between learning that involves the encoding of instances versus the induction of abstract rules or hypotheses. Implicit learning is assumed to involve unconscious rule learning. We examine the evidence for implicit learning derived from subliminal learning, (...) conditioning, artificial grammar learning, instrumental learning, and reaction times in sequence learning. We conclude that unconscious learning has not been satisfactorily established in any of these areas. The assumption that learning in some of these tasks is predominantly based on rule abstraction is questionable. When subjects cannot report the “implicitly learned” rules that govern stimulus selection, this is often because their knowledge consists of instances or fragments of the training stimuli rather than rules. In contrast to the distinction between conscious and unconscious learning, the distinction between instance and rule learning is a sound and meaningful way of taxonomizing human learning. We discuss various computational models of these two forms of learning. (shrink)

INTRODUCTION Linguists who work within the tradition of transformational generative grammar tend to regard semantics as an intractable, perhaps ultimately ...

First Published in 1999. Routledge is an imprint of Taylor & Francis, an informa company.

Stephen Gardiner argues that geoengineering does not meet the “canonical technical definition” of a global public good, and that it is misleading to frame geoengineering as a public good. A public good is something that is nonrival and nonexcludable. Contrary to Gardiner’s claims, geoengineering meets both of these criteria. Framing geoengineering as a public good is useful because it allows commentators to draw on the existing economic, philosophical, and social scientific literature on the governance of public goods.