We describe a set of two computer‐implemented models that solve physics problems in ways characteristic of more and less competent human solvers. The main features accounting for different competences are differences in strategy for selecting physics principles, and differences in the degree of automation in the process of applying a single principle. The models provide a good account of the order in which principles are applied by human solvers working problems in kinematics and dynamics. They also are sufficiently flexible to (...) allow easy extension to several related domains of physics problems. (shrink)

Global metaphysical antirealism (or “antirealism”) is often thought to entail that the identity of each and every concrete entity in our world ultimately depends on us—on our adoption of certain social and linguistic conventions, for instance, or on our use of certain conceptual schemes. Drawing on the middle‐period works of Maurice Merleau‐Ponty, I contend that metaphysical antirealism entails nothing of the sort. For Merleau‐Ponty, I argue, entities do not ultimately owe their identities to us, even though—as he puts it—their “articulations (...) are the very ones of our existence.” Once this is recognised, I maintain, certain interpretations of phenomenology are revealed to be caricatures and certain general objections to antirealism lose their force. (shrink)

In some environmental circles, talk of relational values is very much in fashion. It is said that we must think in terms of such values if we are to understand how such things as canyons, mangroves, and coral reefs matter to people. But that is bad advice. Appeals to relational values are typically misleading in several respects. Granted, those who make such appeals often do so in order to make the important point that some values are neither intrinsic nor instrumental (...) in form, but that point can be made more clearly by referring to other concepts, such as that of constitutive value. To this objection, some may respond that appeals to relational value are nonetheless useful. However, as things stand, their usefulness remains unproven. (shrink)

Cancer is a singular cellular state, the emergence of which destabilises the homeostasis reached through the evolution to multicellularity. We present the idea that the onset of the cellular disobedience to the metazoan functional and structural architecture, known as the cancer phenotype, is triggered by changes in the cell's external environment that occur with ageing: what ensues is a breach of the social contract of multicellular life characteristic of metazoans. By integrating old ideas with new evidence, we propose that with (...) ageing the environmental information that maintains a multicellular organisation is eroded, rewiring internal processes of the cell, and resulting in an internal shift towards an ancestral condition resulting in the pseudo‐multicellular cancer phenotype. Once that phenotype emerges, a new local social contract is built, different from the homeostatic one, leading to tumour formation and the foundation of a novel local ecosystem. (shrink)

The handicap principle is one of the most influential ideas in evolutionary biology. It asserts that when there is conflict of interest in a signaling interaction signals must be costly in order to be reliable. While in evolutionary biology it is a common practice to distinguish between indexes and fakable signals, we argue this dichotomy is an artifact of existing popular signaling models. Once this distinction is abandoned, we show one cannot adequately understand signaling behavior by focusing solely on cost. (...) Under our reframing, cost becomes one—and probably not the most important—of a collection of factors preventing deception. (shrink)

It is, I suggest, unclear whether any old inanimate objects deserve to be treated with respect simply because they are old. Yet this does not entail that an object’s age has no bearing at all on the question of how it may permissibly be treated. I defend the claim that those who fail to take seriously the histories of old inanimate objects typically deserve to be criticized on aretaic grounds. Such people, I argue, tend to lack the virtue of humility.

In many cases, rivers, mountains, forests, and other so-called natural entities have value for us because they contribute to our well-being. According to the standard model of such value, they have instrumental or “service” value for us on account of their causal powers. That model tends, however, to come up short when applied to cases when nature contributes to our well-being by virtue of the religious, political, historical, personal, or mythic meanings it bears. To make sense of such cases, a (...) new model of nature’s value is needed, one that registers the fact that nature can have constitutive value for us on account of the role it plays in certain meaningful wholes, such as a person’s sense of who he or she is. (shrink)

In the US Environmental Protection Agency, the World Wide Fund for Nature and many other environmental organisations, it is standard practice to evaluate particular woods, wetlands and other such places on the basis of the ‘ecosystem services’ they are thought to provide. I argue that this practice cannot account for one important way in which places are of value to human beings. When they play integral roles in our lives, particular places have a kind of value which cannot be adequately (...) conceived in terms of service provision. Since it is in this respect limited, the ecosystem services framework can, I suggest, be criticised on grounds of justice. (shrink)

If we are to assess whether our attitudes towards nature are morally, aesthetically or in any other way appropriate or inappropriate, then we will need to know what those attitudes are. Drawing on the works of Katie McShane, Alan Holland and Christine Swanton, I challenge the common assumption that to love, respect, honour, cherish or adopt any other sort of pro-attitude towards any natural X simply is to value X in some way and to some degree. Depending on how one (...) interprets ‘value’, that assumption is, I contend, either false or vacuous. I argue that to assess the appropriateness of a person’s pro-attitudes towards a natural entity one must in some cases appeal to the concepts of status and/or bond, and not just that of value. To develop my argument, I appeal to the works of two nature writers – Robert Macfarlane and J. A. Baker. (shrink)

In the reported, experiment participants hit a ball to aim at the vertex of a Müller–Lyer configuration. This configuration either remained stable, changed its shaft length or the orientation of the tails during movement execution. A significant illusion bias was observed in all perturbation conditions, but not in the stationary condition. The illusion bias emerged for perturbations shortly after movement onset and for perturbations during execution, the latter of which allowed only a minimum of time for making adjustments . These (...) findings indicate that allocentric information is exploited for online control when people make rapid adjustments in response to a sudden change in the environment and not when people guide their limb movements to interact with a stable environment. (shrink)

It is the evening of January 11, 1951. A. J. Ayer retires to a Parisian bar for a post-lecture drink, where he is joined by Georges Batailles, Maurice MerleauPonty, and the physicist Georges Ambrosino. They argue until 3 a.m. The point at issue: Was there a sun before human beings existed? Ayer says "yes," the other three say "no."1Now imagine that a fifth person joins the debate—a Mādhyamika. She argues that because nothing exists independently of conceptual imputation, since, as she (...) puts it, everything is prajñaptisat, neither the sun nor anything else could exist "in itself" or "from its own side"—apart, that is, from the conceptualizing activities of beings like us.Ayer is unimpressed. He stubs out his... (shrink)

It is often assumed that to say that nature should be protected for the sake of human beings just is to say that it should be protected because it is a means to one or more anthropocentric ends. I argue that this assumption is false. In some contexts, claims that a particular natural X should be protected for our sakes mean that X should be protected, not because it is a means to anthropocentric ends, but because it is part of (...) something about human life that is of value: because, that is, its value is anthropocentric and constitutive rather than anthropocentric and instrumental. It follows, I suggest, that one does not need to endorse the non-anthropocentric claim that nature should be protected for its own sake in order to challenge the instrumentalist notion that it should be protected simply because it is a means to anthropocentric ends. To make my case, I consider the UK Government's failed attempt to sell off England's publicly-owned forests. (shrink)

This paper is about how we should evaluate our tendencies to find - or fail to find - different meanings in the natural world. It has three aims: (1) to show that some virtues and vices can be exhibited in our tendencies to find or to overlook the meanings of natural things, even if it is unclear whether any can only be exhibited in our relations with such things; (2) to categorise some of the relevant virtues and vices; and (3) (...) to refute the objection that meaning-focused approaches to environmental philosophy, of the sort adopted by writers such as Alan Holland and myself, cannot adequately account for nature's independence from human concerns. (shrink)

In several works, Holmes Rolston, III has argued that a satisfactory environmental ethic cannot be built on a virtue ethical foundation. His first argument amounts to the charge that because virtue ethics is by nature “self-centered” or egoistic, it is also inherently “human-centered” and hence ill suited to treating environmental matters. According to his second argument, virtue ethics is perniciously human-centeredsince it “locates” the value of a thing, not in the thing itself, but in the agent who is “ennobled” by (...) valuing it. These charges, though illuminating, are not in the final analysis compelling. The first misconceives the role of motivation in virtue ethics, while the second ultimately rests on a misunderstanding of the place of the human perspective in ethical considerations. (shrink)

Are any nonhuman animals conscious? Why, if at all, should we strive to conserve natural environments? In what sense are we parts of nature? In this book, Simon James draws on a range of philosophical and literary sources to develop original answers to these and other questions, setting out a refreshingly new approach to environmental philosophy"--Provided by publisher.

Climate change, habitat loss, rising extinction rates - such problems call for more than just new policies and practices. They raise fundamental questions about the world and our place in it. What, for instance, is the natural world? Do we humans belong to it? Which parts of it are we morally obliged to protect? Drawing on an exceptionally wide range of sources, from virtue ethics to Buddhism, leading environmental philosopher Simon P. James sets out to answer these vitally important (...) questions. The book begins with a discussion of animal minds, before moving on to explore our moral relations with non-human organisms, ecosystems and the earth as a whole. James then considers environmental aesthetics, humanity's place in the natural world and the question of what it means to be wild. In the concluding chapter, he applies his findings to the topic of global climate change, building a strong moral case for urgent action. This accessible, entertainingly written book will be essential reading for students of the environment across the humanities and social sciences. It will, moreover, be an ideal guide for anyone keen to deepen their understanding of environmental issues. (shrink)

Under conditions of physiological stress, officers are sometimes required to make split-second life-or-death decisions, where deficits in performance can have tragic outcomes, including serious injury or death and strained police–community relations. The current study assessed the performance of 122 active-duty police officers during a realistic lethal force scenario to examine whether performance was affected by the officer’s level of operational skills training, years of police service, and stress reactivity. Results demonstrated that the scenario produced elevated heart rates, as well as (...) perceptual and cognitive distortions, such as tunnel vision, commensurate with those observed in naturalistic use of force encounters. The average performance rating from the scenario was 59%, with 27% of participants making at least one lethal force error. Elevated stress reactivity was a predictor of poorer performance and increased lethal force errors. Level of training and years of police service had differential and complex effects on both performance and lethal force errors. Our results illustrate the need to critically reflect on police training practices and continue to make evidence-based improvements to training. The findings also highlight that while training may significantly improve outcomes, flawless performance is likely not probable, given the limits of human performance under stress. Implications for the objective reasonableness standard, which is used to assess the appropriateness of force in courts of law, are discussed. (shrink)

Language’s intentional nature has been highlighted as a crucial feature distinguishing it from other communication systems. Specifically, language is often thought to depend on highly structured intentional action and mutual mindreading by a communicator and recipient. Whilst similar abilities in animals can shed light on the evolution of intentionality, they remain challenging to detect unambiguously. We revisit animal intentional communication and suggest that progress in identifying analogous capacities has been complicated by (i) the assumption that intentional (that is, voluntary) production (...) of communicative acts requires mental-state attribution, and (ii) variation in approaches investigating communication across sensory modalities. To move forward, we argue that a framework fusing research across modalities and species is required. We structure intentional communication into a series of requirements, each of which can be operationalised, investigated empirically, and must be met for purposive, intentionally communicative acts to be demonstrated. Our unified approach helps elucidate the distribution of animal intentional communication and subsequently serves to clarify what is meant by attributions of intentional communication in animals and humans. (shrink)

In this commentary we concur with Frost's view of the centrality of universal principles in models of word identification. However, we argue that other processes in sentence comprehension also fundamentally constrain the nature of written word identification. Furthermore, these processes appear to be universal. We, therefore, argue that universality in word identification should not be considered in isolation, but instead in the context of other linguistic processes that occur during normal reading.

This commentary focuses on two aspects of eye movement behaviour that E-Z Reader 7 currently makes no attempt to explain: the influence of higher order psycholinguistic processes on fixation durations, and orthographic influences on initial and refixation locations on words. From our understanding of the current version of the model, it is not clear how it may be readily modified to account for existing empirical data.

Attempts to determine whether nonhuman animals have minds are often thought to raise a particular sceptical concern; I call it the problem of animal minds. If there are such things as animal minds, the sceptic reasons, they will be private realms to which we humans do not have direct epistemological access. So how could one ever know for certain that animals are not mindless mechanisms? In this paper I use a phenomenological approach to show that this familiar sceptical problem presupposes (...) an account of our relations with others which is both too individualistic and too 'mentalistic' to shed interpretative light on our relations with animals. I conclude that although inquiries into how animals experience the world raise a host of difficult problems, they do not raise one big problem, the problem of animal minds, which must be solved before any such inquiries can get off the ground. (shrink)

Like Buddhism, environmental ethics encompasses a wide variety of approaches, positions, and traditions. The seminal works of the field most of which were written by North Americans, Scandinavians, and Australians often gave the impression that environmental ethics is primarily about our moral relations with the wilder parts of the biosphere. In certain respects, the ecological conception of the world chimes with the worldview of early Buddhism. First, that worldview of the Buddhism is in one sense of the term, naturalistic. Second, (...) the worldview of early Buddhism is holistic. In environmental ethics, for its part, nature is often contrasted with the human or human‐made world rather than with the supernatural. One way to consider the relations between Buddhist philosophy and environmental ethics is to ask what value Buddhist philosophical traditions have attributed to or, for theorists of a realist inclination, discovered in nature. (shrink)

Environmental thinkers sympathetic to Buddhism sometimes reason as follows: (1) A holistic view of the world, according to which humans are regarded as being 'one' with nature, will necessarily engender environmental concern; (2) the Buddhist teaching of 'emptiness' represents such a view; therefore (3) Buddhism is an environmentally-friendly religion. In this paper, I argue that the first premise of this argument is false (a holistic view of the world can be reconciled with a markedly eco-unfriendly attitude) as is the second (...) (in speaking of emptiness, Buddhist thinkers are not proposing an 'ecological' conception of the world). Yet the conclusion is, I suggest, true: Buddhism is in certain respects environmentally-friendly, not for the reasons cited above, but because of the view, encapsulated in its teachings and practices, that certain dispositions to treat the natural environment well are an integral part of human well-being. (shrink)

Contrary to what writers such as Hans Jonas and Val Plumwood suggest, much of nature is indifferent to human interests. Mountains, glaciers, sun-baked salt pans—such entities care neither about what interests us humans nor about what is objectively in our interests. It might be hard to see how the property of being indifferent, in this sense, could add value. But it can. For those of us who inhabit highly technological, user-friendly environments, entities such as mountains can have therapeutic value precisely (...) because they so obviously do not care about what matters to us. (shrink)

It is clear that natural entities can be preserved – they can be preserved because they can be harmed or destroyed, or in various other ways adversely affected. I argue that in light of the rise of scientism and other forms of philistinism, the political, religious, mythic, personal and historical meanings that people find in those entities can also be preserved. Against those who impugn disciplines such as fine arts, philosophy and sociology, I contend that this sort of preservation requires (...) the efforts of those whose work exemplifies the core values of the arts, the humanities and the qualitative social sciences. (shrink)

It is often supposed that valuable organisms are more valuable if they are rare. Likewise if they belong to endangered species. I consider what kinds of value rarity and endangerment can add in such cases. I argue that individual organisms of a valuable species typically have instrumental value as means to the end of preserving their species. This progenitive value, I suggest, tends to increase exponentially with rarity. Endlings, for their part, typically have little progenitive value; however, I argue that (...) they may nonetheless have persistence value because, merely by existing, they postpone the numerical extinction of their species. Finally, I propose that a sentient endling can have higher lifeworld value than it would have had were it not the last of its kind. This, I argue, is because when a sentient endling dies, very little of its lifeworld is preserved – and this, I suggest, can be a bad thing. (shrink)

Recent evidence suggests that consciousness of encoding is not necessary for the rapid formation of new semantic associations. We investigated whether unconsciously formed associations are as semantically precise as would be expected for associations formed with consciousness of encoding during episodic memory formation. Pairs of faces and written occupations were presented subliminally for unconscious associative encoding. Five minutes later, the same faces were presented suprathreshold for the cued unconscious retrieval of face-occupation associations. Retrieval instructions required participants to classify the presented (...) individuals according to their putative regularity of income, length of education, and creativity value of occupational activity. The three instructions yielded more classifications consistent with a person’s occupation if the person had been subliminally presented with his written occupation versus a meaningless word . This suggests that consciousness is not necessary to encode, long-term store, and retrieve semantically precise associations between primarily unrelated items. (shrink)

Mark Sagoff claims that if we are to explain what moves people to protect the natural world, we will need to refer to their ‘cultural, aesthetic, and moral ties’ to the ‘places they cherish or love...

Employee attitudes to change are key predictors of organizational change success. In this article, change engagement is defined as the extent to which employees are enthusiastic about change, and willing to actively involve themselves in ongoing organizational change. A model is tested showing how change-related organizational resources influence change engagement, in part through their influence on change-related job resources. Confirmatory Factor Analysis and Structural Equations Modeling results yielded good fit to the data in two independent samples: 225 Australian working professionals, (...) and 201 employees from a Prolific sample. As proposed, change-related organizational resources were positively associated with higher order change-related job resources. Change-related job resources were positively associated with change engagement. In contrast to expectations, organizational resources were not directly associated with change engagement. Instead, change-related job resources fully mediated the relationship. Overall, the study provides empirical support for new measures of organizational change resources and employee change engagement. By drawing from well-established models in the change and engagement literatures, the study provides a promising research direction for those interested in further understanding positive employee attitudes to organizational change. Practical implications and future research opportunities are discussed. (shrink)

This paper is about the practice of evaluating ecosystems on the basis of the cultural services they provide. My first aim is to assess the various objections that have been made to this practice. My second is to argue that when particular places are integral to people’s lives, their value cannot be adequately conceived in terms of the provision of cultural ecosystem services. It follows, I conclude, that the ecosystem services framework can provide only a very limited account of the (...) value of places. (shrink)

The American Journal of Bioethics, Volume 11, Issue 11, Page 42-43, November 2011.

Some people claim that some instances of suffering are intrinsically bad in an impersonal way. If it were true, that claim might seem to count against virtue ethics and for consequentialism. Drawing on the works of Jason Kawall, Christine Swanton and Nietzsche, I consider some reasons for thinking that it is, however, false. I argue, moreover, that even if it were true, a virtue ethicist could consistently acknowledge its truth.

forall x: Dortmund is an adaptation and German translation of forall x: Calgary. As such, it is a full-featured textbook on formal logic. It covers key notions of logic such as consequence and validity, the syntax of truth-functional (propositional) logic and truth-table semantics, the syntax of first-order (predicate) logic with identity and first-order interpretations, formalizing German in TFL and FOL, and Fitch-style natural deduction proof systems for both TFL and FOL. It also deals with some advanced topics such as the (...) syntax and (Kripke-)semantics of modal logic. The book is provided in PDF and in LaTeX source code. A booklet with solutions for the exercises in the book is available. (shrink)

In several works, Holmes Rolston, III has argued that a satisfactory environmental ethic cannot be built on a virtue ethical foundation. His first argument amounts to the charge that because virtue ethics is by nature “self-centered” or egoistic, it is also inherently “human-centered” and hence ill suited to treating environmental matters. According to his second argument, virtue ethics is perniciously human-centeredsince it “locates” the value of a thing, not in the thing itself, but in the agent who is “ennobled” by (...) valuing it. These charges, though illuminating, are not in the final analysis compelling. The first misconceives the role of motivation in virtue ethics, while the second ultimately rests on a misunderstanding of the place of the human perspective in ethical considerations. (shrink)