This paper defends a neorepublican account of civic virtue as consisting of stable traits of character, understood in broadly Aristotelian terms, that exhibit excellences associated with the role of citizen, and that contribute to the secure protection of freedom as non-domination. Such an account is important for the neorepublican project because neither laws nor social norms can yield reliable support for republican freedom without a parallel input from civic virtue. The paper emphasizes the need to distinguish civic virtue from desirable (...) norms, which can operate in tandem. Against other neorepublican accounts of civic virtue, it argues that the primary function of such virtue is not to support the stability of republican regimes. Rather, it has a corrective function, and may in fact challenge institutions, laws, and informal norms if they allow for the exercise of arbitrary power. Finally, the paper argues that this account of civic virtue is better positioned than a stability-focused account to shed light on the relationship between civic virtue and the common good. (shrink)

If the a priori is the proper subject matter of transcendental philosophy, then the problems of the a priori are also problems for transcendental philosophy. the idea that defines transcendental philosophy is the idea that there are stable general structures which are discernible in experience, provide the foundations of our knowledge of it, and collectively constitute an a priori which transcends experience and informs it. the a priori is traditionally conceived as a nexus of relations which is held to be (...) logically/temporally prior to experience and responsible for its organization. in this essay, i challenge this traditional (kantian) understanding of the a priori and set forth an alternative to it based on the writings of maurice merleau-ponty. the intent is to provide a new conception of transcendental philosophy. (shrink)

This is a short expository account of the regularity lemma for stable graphs proved by the authors, with some comments on the model theoretic context, written for a general logical audience.

The ideal model of a just society defended by John Rawls entails the existence of certain institutions—those that form the basic structure of society—that guarantee citizens' basic rights and liberties, equality of opportunity, and access to material resources. Such a model also presupposes a certain account of reasonable citizenship. In particular, reasonable citizens will have a set of moral capacities and dispositions and will voluntarily support just institutions. According to Rawls, the need for such citizens is related to the following (...) important consideration in favor of a normative theory of justice: that it be stable. That is, such a theory must be capable of generating its own support over time. This means that it has to be possible for citizens to come to endorse the theory's principles of justice, integrating them into their personal conceptions of the good life. Rawls explicitly draws attention to the stability requirement on ideal theories of justice. Somewhat surprisingly, when Rawls explains how a widespread and deep moral consensus on the principles of justice might be generated in actual societies—a problem that is closely related to the issue of how such consensus could be maintained over time—he pays very little attention to the potential contribution of schools to the production of reasonable citizens. This neglect can be explained, in part, by his confidence that the functioning of just institutions will spontaneously generate, in citizens who live under them, the necessary support for principles of justice and will encourage the development and exercise of the virtues characteristic of reasonable citizens. But this confidence seems misplaced. (shrink)

There are two conspicuous and inescapable features of this world in which time is real. One experiences a world in flux, a transient world in which things constantly come into existence, change and cease to be. One also experiences a stable world, one in which how things are at any given moment is permanent, unchangeable. Thus, there is transience and permanence. Yet these two features of the world seem incompatible. The primary purpose of this paper is to sketch a metaphysics (...) of time that embraces both features. Crucial to this undertaking is the notion of becoming, that is, coming into existence. I distinguish three distinct phenomena of becoming: temporal, absolute and atemporal. The last is the least familiar of these; it is the phenomenon of coming into existence outside of time. Although the idea that there are things that do not exist in time is not unfamiliar, it is largely taken for granted that if anything comes into existence, it must do so in time. (Indeed, I suspect many think that the idea of a thing coming to be outside of time is simply incoherent.) In this paper, I articulate and defend the notion of atemporal becoming. It is by means of this notion that one can develop a fully satisfactory metaphysics of time, one that honors both transience and permanence and finds for each its proper domain within the world. (shrink)

As contribution to a recent debate (James, 1998; Murphy etal., 1997, 1998) the proportion of twins following ovulation induction (OI) or assisted conception (AC) in 1994 in Oxfordshire and West Berkshire was estimated, and by extrapolation the natural twinning rate in England and Wales was judged to have maintained a plateau phase since the 1970s. Similar figures for 1995 and 1996 from the same study, and hence a more stable local estimate, are now provided. The proportions, as before, were estimated (...) from women's responses to a questionnaire within a case[hyphen]control study, with ascertainment from general practitioners' records or hospital case[hyphen]notes for non[hyphen]responders or for those excluded from the study originally. In 1994, 1995 and 1996 the proportion of twins following OI/AC was overall 27% (24%, 30% and 27% respectively). Restriction to the 87% locally resident made no difference. The national crude twinning rate for those years was overall 13·3 per 1000 maternities (12·8, 13·6 and 13·4 respectively). (shrink)

In the process of implementing an ethical code of conduct, a business organization uses formal methods. Of these, training, courses and means of enforcement are common and are also suitable for self-regulation. The USA is encouraging business corporations to self regulate with the Federal Sentencing Guidelines (FSG). The Guidelines prescribe similar formal methods and specify that, unless such methods are used, the process of implementation will be considered ineffective, and the business will therefore not be considered to have complied with (...) the guidelines. Business organizations invest enormous funds on formal methods. However, recent events indicate that these are not, by themselves, yielding the desired results. Our study, based on a sample of 812 employees and conducted in an Israeli subsidiary of a leading multinational High-Tech corporation headquartered in the US, indicates that, of the methods used in the process of implementation, one of the informal methods (namely, the social norms of the organization) is perceived by employees to have the most influence on their conduct. This result, when examined against employee tenure, remains relatively stable over the years, and stands in contradistinction to the formalistic approach embedded in the FSG. We indirectly measure the effectiveness of the percieved most influential implementation process methods by analyzing their impact on employee attitudes (namely, personal ethical commitment and employees'' commitment to organizational values). Our results indicate that the informal methods (manager sets an example or social norms of the organization) are likely to yield greater commitment with respect to both employee attitudes than the formal method (training and courses on the subject of ethics). The personal control method (my own personal values) differs significantly from all the other methods in that it yields the highest degree of personal ethical commitment and the lowest degree of employees'' commitment to organizational values. (shrink)

The description Ausonius has given us of his family and of the teachers and professors of Bordeaux in the mid-fourth century is exceptional among our sources because of its detail and completeness. There is no reason to suppose that the picture he gives is untypical of life in the provinces and it makes a welcome change from the histories of aristocratic politics at Rome or Constantinople. It provides an excellent opportunity for a pilot study in which we may see how (...) the conflicting elements of social status were in practice reconciled and applied. In the traditional, and still prevalent view, the society of the Later Roman Empire was ‘crushed … in the iron clamp of castes separated from one another by barriers which could not be passed’. The evidence of Ausonius suggests that this judgement should be qualified. The society of the fourth century may have been stable. It was not static. (shrink)

The purpose of the study is to conceptualise Islamic workplace rectitude. Based on a comprehensive literature review, the study proposes that Islamic workplace rectitude is composed of a harmonious blend of Islamic workplace spirituality, Islamic workplace ethics, and submission to Allah. The study involved an inductive interpretive analysis, where critical aspects of workplace rectitude were extracted based on the agreed-upon Qur’anic verses and Hadith. The study augments the literature on workplace behaviour through divine command theory by offering new theoretical evidence (...) from an Islamic perspective. As presented in the current study, Islamic workplace rectitude is a higher-order, stable psychological construct that can be distinguished from other constructs. It comprises Islamic workplace spirituality, Islamic workplace ethics, and submission to Allah. However, further research is needed to accomplish conceptual and empirical distinctiveness for the proposed construct of Islamic workplace rectitude. This study presents an alternative approach to Islamic workplace behaviour, facilitating fresh insights and further development and research in this exciting area. The study adopts a holistic approach, contributing to identifying commonalities between workplace attitudes and Islam. It introduces Islamic workplace rectitude, a novel concept not present in the existing literature. The present work is, therefore, expected to trigger further interest and research in Islamic workplace rectitude. (shrink)

More than one third of the human brain is devoted to the processes of seeing - vision is after all the main way in which we gather information about the world. But human vision is a dynamic process during which the eyes continually sample the environment. Where most books on vision consider it as a passive activity, this book is unique in focusing on vision as an 'active' process. It goes beyond most accounts of vision where the focus is on (...) seeing, to provide an integrated account of seeing AND looking. The book starts by pointing out the weaknesses in our traditional approaches to vision and the reason we need this new approach. It then gives a thorough description of basic details of the visual and oculomotor systems necessary to understand active vision. The book goes on to show how this approach can give a new perspective on visual attention, and how the approach has progressed in the areas of visual orienting, reading, visual search, scene perception and neuropsychology. Finally, the book summarises progress by showing how this approach sheds new light on the old problem of how we maintain perception of a stable visual world. Written by two leading vision scientists, this book will be valuable for vision researchers and psychology students, from undergraduate level upwards. (shrink)

In just a few years, children achieve a stable state of linguistic competence, making them effectively adults with respect to: understanding novel sentences, discerning relations of paraphrase and entailment, acceptability judgments, etc. One familiar account of the language acquisition process treats it as an induction problem of the sort that arises in any domain where the knowledge achieved is logically underdetermined by experience. This view highlights the cues that are available in the input to children, as well as childrens skills (...) in extracting relevant information and forming generalizations on the basis of the data they receive. Nativists, on the other hand, contend that language-learners project beyond their experience in ways that the input does not even suggest. Instead of viewing language acqusition as a special case of theory induction, nativists posit a Universal Grammar, with innately specified linguistic principles of grammar formation. The nature versus nurture debate continues, as various poverty of stimulus arguments are challenged or supported by developments in linguistic theory and by findings from psycholinguistic investigations of child language. In light of some recent challenges to nativism, we rehearse old poverty-of stimulus arguments, and supplement them by drawing on more recent work in linguistic theory and studies of child language. (shrink)

The phenomenon whereby severely disabled persons self-report a higher than expected level of subjective well-being is called the “disability paradox.” One explanation for the paradox among brain injury survivors is “response shift,” an adjustment of one’s values, expectations, and perspective in the aftermath of a life-altering, disabling injury. The high level of subjective well-being appears paradoxical when viewed from the perspective of the non-disabled, who presume that those with severe disabilities experience a quality of life so poor that it might (...) make their lives not worth living. This presumption has profound consequences, for it may inform end-of-life choices made in advance directives, or influence decisions made by surrogates on behalf of persons who are unable to direct their own medical treatment. -/- Peterson et al propose a cautious, well-considered plan to use fMRI-based brain-computer interfaces to assess the decision making capacity of covertly aware, behaviorally non-responsive individuals who retain high levels of preserved cognition. Their plan, if it succeeds, could eventually restore autonomy and empower some severely disabled persons, allowing them to participate in clinical decision making. Peterson et al discuss possible in-principle objections to their proposal, among them the “argument from psychological health,” and the “changing sets of values” objection. These objections both presume that deviations from a pre-injury norm could indicate diminished decision making capacity. This presumption threatens the autonomy of the patient who is capable of making decisions, but whose post-injury decisions appear to diverge from pre-injury preferences or values. In light of the potential for response shift, and the disability paradox, it should not be inferred that changes in values or preferences are unreflective of the true current preferences of a brain-injured person, nor are they conclusive evidence of diminished capacity. Presuming diminished capacity on the basis of unexpected or unconventional preferences has, in the past, been used to disempower patients whose autonomy and capacity would not have been doubted had they made choices that accorded with the expectations or values of others. We must be cautious, and vigilant, to prevent similarly diminishing the autonomy of covertly aware, behaviorally non-responsive individuals on the basis of empirically and ethically questionable inferences about their decision making capacity. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Life in LimboM. ChiuWhen my son was 7 years old, he began complaining of headaches. They were frequent, but never seemed severe. “I have a headache!” was always followed by “Can I watch TV?” I didn’t believe the pain was real until it woke him up in the middle of the night. I knew then that something must be wrong. I approached our pediatrician, who said it sounded like (...) migraines, but we should order an MRI to rule anything out. The appointment was scheduled several months in advance, and I always had the urge to cancel it. I was pretty sure my son just wanted to watch TV. The pediatrician told me I might as well do the MRI. He told me that if we skipped it and something was wrong, I would never be able to live with the regret. We kept the Monday morning appointment, and went to the MRI expecting reassurance that nothing was wrong. Instead, we got a phone call later that day. They needed to see us on immediately, but wouldn’t tell me why. Of course, I knew something was wrong. “Is it a tumor?” I asked. “This isn’t something we can discuss on the phone” was the answer I got. An appointment was scheduled for Wednesday. Two days might be “immediately” to medical professionals, but to a parent who just heard that her child had an abnormal MRI, it was an eternity. I planned my son’s funeral in those two days.Our meeting with the Neurologist began with reviewing the MRI. “See this spot here? It shouldn’t be there”. A tumor. 1 ½ × 1 ½ × 2 ½ cm tumor, in the right thalamus. Small, they said. Looks like a Low Grade Glioma they said. The kind of tumor you want to have, if you have to have a brain tumor. A biopsy was scheduled for two weeks later. The [End Page E2] biopsy confirmed it was a Juvenile Pilocytic Astrocytoma (JPA). The neurosurgeon was confident she could remove all of the tumor. We were at one of the best Children’s Hospitals in the world. We were in good hands.A few days before the surgery, a friend who is a medical doctor suggested we get a second opinion. “It couldn’t hurt, it could help”, my husband said. Fortunately, he just sold a start–up company, and was planning to take a few months off from work before starting his next venture. He had time to research, talk to friends in the medical field and make phone calls.Our second opinion from another leading hospital reviewed the MRI’s with us. The neurosurgeon asked, “Did they say tumor? One?” Yes, they did. “See this here?” he said, pointing to a second spot on the MRI. He said it was possibly a second tumor, or more likely, an extension of the first. It was in inoperable location. Surgery wasn’t an option. Chemo would be our best choice. Why would we cut into our son’s brain to remove part of the tumor when he would need to do chemo anyway? Why not try chemo first?I would like to say that we do not fault our original neuro–oncology team for missing this second abnormality. It is hard to notice an ant in the room when there is an elephant staring at you. People make mistakes, and tumors don’t always look the same. That’s what second opinions are for. That is why doctors should encourage patients to get second opinions.We scheduled the surgery for port implantation, and got busy educating ourselves about chemo regimes. It was going to be a long journey. 18 months of transfusions with a pretty low success rate and a high rate of secondary complications. Unsure if we were doing the right thing, we got a third opinion. I am so grateful that my husband was between jobs and had time to devote to finding the best possible treatment for our son. We were financially stable and had great insurance. What do people do when they don’t have this luxury?By now, several months had passed since our first MRI. Our... (shrink)

That Jefferson execrated Plato in an 1814 letter to friend John Adams. In it, he expresses an unsympathetic, hostile view of Plato’s Republic, and the reasons are several. Nonetheless, Plato’s views on what makes government fundamentally sound are, at base, remarkably similar to Jefferson’s both in substance and sentiment, so much so that it is inconceivable to think that Plato’s Republic had little effect on Jefferson’s political thinking. That makes his execration of Plato difficult to understand. This paper is an (...) attempt to show that Jefferson, despite the tenor of his letter to Adams, had much more than a dilettante’s grasp of the political content of Plato’s major work. Jefferson was very likely quite familiar with the work, since his own political philosophy assimilates key substratal Platonic political principles of good, stable governing. His disavowal of the work and execration of Plato, then, is due to a constellation of other factors: Adams’s feelings toward Plato, Jefferson’s views on the corruptions of Jesus’s teachings, his deep-dyed detestation of metempiricism, his view that Plato was an unoriginal thinker, and strong disagreement with Plato’s means to instantiate substratal political principles. (shrink)

Purpose: In the educational field a lack of focus on the process of arriving at a level of profound understanding of a phenomenon can be observed. While classical approaches in education focus on "downloading," repeating, or sometimes optimizing relatively stable chunks of knowledge (both facts and procedural knowledge), this paper proposes to shift the center of attention towards a more dynamic and constructivist perspective: learning as a process of individual and collective knowledge creation and knowledge construction. The goal of this (...) process is to profoundly understand a phenomenon in its multi-dimensionality and complexity and to reflect on the processes that have lead to this understanding. The issue we want to tackle in this paper is how this profound understanding can be brought about in a technology-enhanced learning environment. Method: Part 1 of this paper explores strategies of technology-enhanced knowledge sharing/creation in the field of higher education. Part 2 presents a successful blended learning scenario that illustrates the implementation of these learning strategies in a concrete course design. In this case study students are involved in active theory construction processes by conducting virtual experiments with a virtual organism. Part 3 elaborates on the epistemological implications of this case study. Findings: A constructivist framework for modes of knowing and modes of coming to know is developed. It is shown that -- in order to reach a profound understanding of a phenomenon -- it is essential to take into account the multi-facetted character of knowledge and to use the strategy of double-loop learning. Conclusion: This leads to an understanding of learning/teaching as a process of socio-epistemological engineering. Furthermore, the role of the teacher changes in such a constructivist setting of learning/teaching: Their primary task is to provide a "pedagogically (and technologically) augmented environment." They are responsible for creating an atmosphere of collective knowledge construction and reflection. Beyond the role of a coach and moderator the teacher has to act as a facilitator or "enabler" for the (individual and collective) processes of double-loop learning. (shrink)

This paper is perhaps an impressionistic response to accounts of the extraordinary set-theoretical activity being undertaken by W. Hugh Woodin and colleagues in the present moment, in the context of the mathematical ontology proposed and elaborated by Alain Badiou. The argument presented is that the prevailing and sustained incoherence of the mathematical ontology underscores a contemporary deficit of humanity’s symbolic organization which, in turn, yields confusion and conflict in terms of subjective orientation. But a new axiom promises to realize a (...) coherent set theory, i.e. stable, consistent and complete. This remarkable development offers hope for the pursuit of a modern symbolic, and a consequent resolution of the general subjective disorientation. (shrink)

The coefficients of internal consistency and retest reliability had been rarely investigated within the methodology of dream content analysis. Analyzing a dream series of elderly, healthy persons obtained from weekly telephone interviews, the internal consistency of a series of 20 dreams and retests after 4 or 22 weeks, respectively, had been computed. The findings indicate that dream recall and dream length are quite stable, but dream characteristics such as bizarreness and emotional tone underlie large intraindividual fluctuations. In order to obtain (...) reliable measures for these variables which will be important for correlational studies, including waking-life trait measures, one has to obtain as many dreams as possible (about 20) in a very short time period. Further research is needed to extend the present findings to diary dreams and laboratory dreams. (shrink)

If all differences in behavior are explainable in terms of universal values pursued under variable constraints, then much ethical theorizing is pointless. A strong presumption in favor of universal values can be established by showing that differences in behavior that were previously thought to be explainable only in terms of differences in values, can in fact be explained in terms of differences in constraints. Eleven such cases are briefly discussed, including cases of differences among racial, religious and other groups in (...) crime, culinary practices and the acceptance of innovation. (shrink)

Neuroimaging is critical in the diagnosis and treatment of brain cancers; however, the first detection of tumors is a challenge. Detection techniques like image segmentation are heavily reliant on the segmented image’s resolution. Magnetic resonance imaging tumor segmentation has emerged as a new study area in the medical imaging field. This spongy and delicate mass of tissue is the brain. Stable conditions allow for patterns to enter and interact with each other. To put it simply, a tumor is a mass (...) of tissue that has grown unchecked by the natural mechanisms that keep it under control. When cells divide uncontrollably, they create a cancerous tumor. Brain tumors can be detected and segmented using a variety of methods. A new method for detecting brain tumors using MRI images is presented in this research. An innovative Woelfel filter is used for enhancement, and morphological segmentation approaches combined with anisotropic diffusion are used for segmentation. Segmentation of brain tumors can be accomplished using thresholding and morphological techniques, which are both effective. The tumor will be located and identified using morphological image processing. Image denoising refers to the process of removing artefacts such as noise and aliasing from digital images. Here MATLAB programming language is utilised as it incorporates all the toolboxes required for the application involved in the work. (shrink)

The Moral Foundations of Trust seeks to explain why people place their faith in strangers, and why doing so matters. Trust is a moral value that does not depend upon personal experience or on interacting with people in civic groups or informal socializing. Instead, we learn to trust from our parents, and trust is stable over long periods of time. Trust depends on an optimistic world view: the world is a good place and we can make it better. Trusting people (...) are more likely to give through charity and volunteering. Trusting societies are more likely to redistribute resources from the rich to the poor. Trust has been in decline in the United States for over 30 years. The roots of this decline are traceable to declining optimism and increasing economic inequality, which Uslaner supports by aggregate time series in the United States and cross-sectional data across market economies. (shrink)

Bacteria have evolved advanced strategies for surviving during nutritional stress, including expression of specialized enzyme systems that allow them to grow on unusual nutrient sources. Inorganic phosphate (Pi) is limiting in most ecosystems, hence organisms have developed a sophisticated, enzymatic machinery known as carbon‐phosphorus (C‐P) lyase, allowing them to extract phosphate from a wide range of phosphonate compounds. These are characterized by a stable covalent bond between carbon and phosphorus making them very hard to break down. Despite the challenges involved (...) in both synthesizing and catabolizing phosphonates, they are widespread in nature. The enzymes required for the bacterial C‐P lyase pathway have been identified and for the most part structurally characterized. Nevertheless, the mechanistic principles governing breakdown of phosphonate compounds remain enigmatic. In this review, an overview of the C‐P lyase pathway is provided and structural aspects of the involved enzyme complexes are discussed with a special emphasis on the role of ATP‐binding cassette (ABC) proteins. (shrink)

Bacteria have evolved advanced strategies for surviving during nutritional stress, including expression of specialized enzyme systems that allow them to grow on unusual nutrient sources. Inorganic phosphate (Pi) is limiting in most ecosystems, hence organisms have developed a sophisticated, enzymatic machinery known as carbon‐phosphorus (C‐P) lyase, allowing them to extract phosphate from a wide range of phosphonate compounds. These are characterized by a stable covalent bond between carbon and phosphorus making them very hard to break down. Despite the challenges involved (...) in both synthesizing and catabolizing phosphonates, they are widespread in nature. The enzymes required for the bacterial C‐P lyase pathway have been identified and for the most part structurally characterized. Nevertheless, the mechanistic principles governing breakdown of phosphonate compounds remain enigmatic. In this review, an overview of the C‐P lyase pathway is provided and structural aspects of the involved enzyme complexes are discussed with a special emphasis on the role of ATP‐binding cassette (ABC) proteins. (shrink)

We consider the problem of producing an impure public good in various jurisdictions formed through the strategic decisions of agents. Our environment inherits two well-known problems: Under individual decisions, there is a tension between stability and efficiency; Under coalitional decisions, stable jurisdiction structures may fail to exist. The solution, we propose is the use of membership property rights: When a move among jurisdictions is subject to the approval of the agents whom it affects, coalitionally stable jurisdiction structures coincide with those (...) which are efficient. (shrink)

This paper expounds that besides the well-known spatio-temporal problem there is a causal problem of entanglement: even when one neglects spatio-temporal constraints, the peculiar statistics of EPR/B experiment is inconsistent with usual principles of causal explanation as stated by the theory of causal Bayes nets. The conflict amounts to a dilemma that either there are uncaused correlations or there are caused independences . I argue that the central ideas of causal explanations can be saved if one accepts the latter horn (...) and explains the unfaithful independences by a stable fine-tuning of the causal parameters. (shrink)

The Rho GTPases—Rho, Rac and Cdc42—act as molecular switches, cycling between an active GTP‐bound state and an inactive GDP‐bound state, to regulate the actin cytoskeleton. It has recently become apparent that the Rho GTPases can be activated in subcellular zones that appear semi‐stable, yet are dynamically maintained. These Rho GTPase activity zones are associated with a variety of fundamental biological processes including symmetric and asymmetric cytokinesis and cellular wound repair. Here we review the basic features of Rho GTPase activity zones, (...) suggest that these zones represent a fundamental signaling mechanism, and discuss the implications of zone properties from the perspective of both their function and how they are likely to be controlled. BioEssays 28: 983–993, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

We provide Routley-Meyer type semantics for relevant logics including Contractionless Ticket Entailment TW (without the truth constant t and o) plus reductio R and Ackermann’s rule γ (i.e., disjunctive syllogism). These logics have the following properties. (i) All have the variable sharing property; some of them have, in addition, the Ackermann Property. (ii) They are stable. (iii) Inconsistent theories built upon these logics are not necessarily trivial.

Shared intention normally leads to joint action. It does this, it is commonly said, only because it is a characteristically stable phenomenon, a phenomenon that tends to persist from the time it is formed until the time it is fulfilled. However, the issue of what the stability of shared intention comes down to remains largely undertheorized. My aim in this paper is to remedy this shortcoming. I argue that shared intention is a source of moral and epistemic reasons, that responsiveness (...) to such reasons on the part of each individual reinforces her own relevant attitudes, and that this enhances the stability of the shared intention as a whole. We thus discover an important self-reinforcing and stability-enhancing mechanism at the heart of shared intention and action. It follows from this proposal that the psychological commitment that an individual exhibits in joint action is normally a function not only of her own participatory intention, as often maintained, but also of her endorsement of the reasons created by her group’s shared intention to so act. (shrink)

As these opening quotes acknowledge, the Prisoner’s Dilemma (PD) represents a core puzzle within the formal mathematics of game theory.3 Its rise in conspicuity is evident figure 2.1 above demonstrating a relatively steady rise in incidences of the phrase’s usage between 1960 to 1995, with a stable presence persisting into the twenty first century. This famous two-person “game,” with a stock narrative cast in terms of two prisoners who each independently must choose whether to remain silent or speak, each advancing (...) self-interest at the expense of the other and thereby achieving a mutually suboptimal outcome, mires any social interaction it is applied to into perplexity. The logic of this game proves the inverse of Adam Smith’s invisible hand: individuals acting on self interest will achieve a mutually suboptimal outcome. However, as this chapter illuminates, the assumptions underlying game theory drive this conclusion. (shrink)

Implicit processes almost certainly preceded explicit processes in our evolutionary history, so they are likely to be more resistant to disruption according to the principles of evolutionary biology [Reber, A. S. . The cognitive unconscious: An evolutionary perspective. Consciousness and Cognition, 1, 93–133.]. Previous work . Knowledge, nerves and know-how: The role of explicit versus implicit knowledge in the breakdown of a complex motor skill under pressure. British Journal of Psychology, 83, 343–358.]) has shown that implicitly learned motor skills remain (...) stable under psychological pressure and concurrent cognitive demands, and recently [Poolton, J. M., Masters, R. S. W., & Maxwell, J. P. . Passing thoughts on the evolutionary stability of implicit motor behaviour: Performance retention under physiological fatigue. Consciousness and Cognition, 16, 456–468.] showed that they also remain stable under conditions of anaerobic fatigue that would have significantly challenged the survival skills of our ancestors. Here we examine the stability of an implicitly learned motor skill under fatigue conditions that primarily tax a different physiological system , but which have equally strong evolutionary connotations. Participants acquired a throwing task by means of an errorless learning method or an errorful method. Motor performance in the errorless condition, but not the errorful condition, remained stable following an exhaustive VO2 max. running test. Our findings replicate and extend the work of Poolton et al., providing further support for Reber’s evolutionary distinction between implicit and explicit processes. (shrink)

Game theory has a prominent role in evolutionary biology, in particular in the ecological study of various phenomena ranging from conflict behaviour to altruism to signalling and beyond. The two central methodological tools in biological game theory are the concepts of Nash equilibrium and evolutionarily stable strategy. While both were inspired by a dynamic conception of evolution, these concepts are essentially static—they only show that a population is uninvadable, but not that a population is likely to evolve. In this article, (...) we argue that a static methodology can lead to misleading views about dynamic evolutionary processes. We advocate, instead, a more pluralistic methodology, which includes both static and dynamic game theoretic tools. Such an approach provides a more complete picture of the evolution of strategic behaviour. 1 Introduction2 The Equilibrium Methodology3 Common Interest Signalling3.1 Lewis’s signalling game3.2 Static analysis3.3 Dynamic analysis4 The Sir Philip Sidney Game4.1 Static analysis4.2 Other equilibria4.3 Dynamic analysis5 Related Literature6 Static and Dynamic Approaches. (shrink)

This article offers reinterpretation of the current economic and political crisis through the lens of Gramsci’s concept of “interregnum,” departing from the model of “punctured equilibrium” to analyze the specific political dynamics of nonhegemonic periods between the breakdown of one ideological order and the emergence of a new one. Although political science has a range theories about periods of hegemony and paradigmatic stability, the periods between stable hegemonies remain distinctly undertheorized. A theoretical concept describing periods of interregnum is offered and (...) applied to the changes in economic ideology and political alignments that followed the breakdown of the liberal order in the interwar period and the postwar Keynesian consensus of the 1970s. The concept is then applied to the current juncture, in which the hegemony of neoliberalism has been shaken by the 2008 financial crisis but no clear successor has emerged. (shrink)

We study the handicap principle in terms of the Sir Philip Sidney game. The handicap principle asserts that cost is required to allow for honest signalling in the face of conflicts of interest. We show that the significance of the handicap principle can be challenged from two new directions. Firstly, both the costly signalling equilibrium and certain states of no communication are stable under the replicator dynamics ; however, the latter states are more likely in cases where honest signalling should (...) apply. Secondly, we prove the existence and stability of polymorphisms where players mix between being honest and being deceptive and where signalling costs can be very low. Neither the polymorphisms nor the states of no communication are evolutionarily stable, but they turn out to be more important for standard evolutionary dynamics than the costly signalling equilibrium. (shrink)

The paper reviews statistical models for money, wealth, and income distributions developed in the econophysics literature since the late 1990s. By analogy with the Boltzmann-Gibbs distribution of energy in physics, it is shown that the probability distribution of money is exponential for certain classes of models with interacting economic agents. Alternative scenarios are also reviewed. Data analysis of the empirical distributions of wealth and income reveals a two-class distribution. The majority of the population belongs to the lower class, characterized by (...) the exponential (“thermal”) distribution, whereas a small fraction of the population in the upper class is characterized by the power-law (“superthermal”) distribution. The lower part is very stable, stationary in time, whereas the upper part is highly dynamical and out of equilibrium. (shrink)

The numerical study of a glycolytic model formed by a system of three delay differential equations reveals a multiplicity of stable coexisting states: birhythmicity, trirhythmicity, hard excitation and quasiperiodic with chaotic regimes. For different initial functions in the phase space one may observe the coexistence of two different quasiperiodic motions, the existence of a stable steady state with a stable torus, and the existence of a strange attractor with different stable regimes (chaos with torus, chaos with bursting motion, and chaos (...) with different periodic regimes). For a single range of the control parameter values our system may exhibit different bifurcation diagrams: in one case a Feigenbaum route to chaos coexists with a finite number of successive periodic bifurcations, in other conditions it is possible to observe the coexistence of two quasiperiodicity routes to chaos. These studies were obtained both at constant input flux and under forcing conditions. (shrink)

This forum contribution addresses two major themes in de Goede’s original essay on ‘Financial security’: (1) the relationship between stable markets and the proverbial ‘security dilemma’; and (2) the development of new decision-technologies to address risk in the post-World War II period. Its argument is that the confluence of these two themes through rational choice theory represents a fundamental re-evaluation of the security dilemma and its relationship to the rule of law governing market relations, ushering in an era of perpetual (...) physical and financial insecurity. (shrink)

We show how more general knowledge can be built in information security, by the building of knowledge of mechanism clusters, some of which are multifield. By doing this, we address in a novel way the longstanding philosophical problem of how, if at all, we come to have knowledge that is in any way general, when we seem to be confined to particular experiences. We also address the issue of building knowledge of mechanisms by studying an area that is new to (...) the mechanisms literature: the methods of what we shall call mechanism discovery in information security. This domain offers a fascinating novel constellation of challenges for building more general knowledge. Specifically, the building of stable communicable mechanistic knowledge is impeded by the inherent changeability of software, which is deployed by malicious actors constantly changing how their software attacks, and also by an ineliminable secrecy concerning the details of attacks not just by attackers, but also by information security defenders as they protect their methods from both attackers and commercial competitors. We draw out ideas from the work of the mechanists Darden, Craver, and Glennan to yield an approach to how general knowledge of mechanisms can be painstakingly built. We then use three related examples of active research problems from information security to develop philosophical thinking about building general knowledge using mechanisms, and also apply this to develop insights for information security. We show that further study would be instructive both for practitioners and for philosophers. (shrink)

We show how more general knowledge can be built in information security, by the building of knowledge of mechanism clusters, some of which are multifield. By doing this, we address in a novel way the longstanding philosophical problem of how, if at all, we come to have knowledge that is in any way general, when we seem to be confined to particular experiences. We also address the issue of building knowledge of mechanisms by studying an area that is new to (...) the mechanisms literature: the methods of what we shall call mechanism discovery in information security. This domain offers a fascinating novel constellation of challenges for building more general knowledge. Specifically, the building of stable communicable mechanistic knowledge is impeded by the inherent changeability of software, which is deployed by malicious actors constantly changing how their software attacks, and also by an ineliminable secrecy concerning the details of attacks not just by attackers, but also by information security defenders as they protect their methods from both attackers and commercial competitors. We draw out ideas from the work of the mechanists Darden, Craver, and Glennan to yield an approach to how general knowledge of mechanisms can be painstakingly built. We then use three related examples of active research problems from information security to develop philosophical thinking about building general knowledge using mechanisms, and also apply this to develop insights for information security. We show that further study would be instructive both for practitioners and for philosophers. (shrink)

Most words in English are ambiguous between different interpretations; words can mean different things in different contexts. We investigate the implications of different types of semantic ambiguity for connectionist models of word recognition. We present a model in which there is competition to activate distributed semantic representations. The model performs well on the task of retrieving the different meanings of ambiguous words, and is able to simulate data reported by Rodd, Gaskell, and Marslen‐Wilson [J. Mem. Lang. 46 (2002) 245] on (...) how semantic ambiguity affects lexical decision performance. In particular, the network shows a disadvantage forwords with multiple unrelated meanings (e.g., bark) that coexists with a benefit for words with multiple related word senses (e.g., twist). The ambiguity disadvantage arises because of interference between the different meanings, while the sense benefit arises because of differences in the structure of the attractor basins formed during learning. Words with few senses develop deep, narrow attractor basins, while words with many senses develop shallow, broad basins. We conclude that the mental representations of word meanings can be modelled as stable states within a high‐dimensional semantic space, and that variations in the meanings of words shape the landscape of this space. (shrink)

Messaging from U.S. authorities about COVID-19 has been widely divergent. This research aims to clarify popular perceptions of the COVID-19 threat and its effects on victims. In four studies with over 4,100 U.S. participants, we consistently found that people perceive the threat of COVID-19 to be substantially greater than that of several other causes of death to which it has recently been compared, including the seasonal flu and automobile accidents. Participants were less willing to help COVID-19 victims, who they considered (...) riskier to help, more contaminated, and more responsible for their condition. Additionally, politics and demographic factors predicted attitudes about victims of COVID-19 above and beyond moral values; whereas attitudes about the other kinds of victims were primarily predicted by moral values. The results indicate that people perceive COVID-19 as an exceptionally severe disease threat, and despite prosocial inclinations, do not feel safe offering assistance to COVID-19 sufferers. This research has urgent applied significance: the findings are relevant to public health efforts and related marketing campaigns working to address extended damage to society and the economy from the pandemic. In particular, efforts to educate the public about the health impacts of COVID-19, encourage compliance with testing protocols and contact tracing, and support safe, prosocial decision-making and risk assessment, will all benefit from awareness of these findings. The results also suggest approaches, such as engaging people's stable values rather than their politicized perspectives on COVID-19, that may reduce stigma and promote cooperation in response to pandemic threats. (shrink)

The properties of negation, in combination with those of other logical operations and structural features of the deductibility relation, serve as gateways among logical systems. Negation therefore plays an important role in selecting logical systems for particular applications. This volume provides a thorough treatment of this concept, based on contributions written by authors from various branches of logic. The resulting 14 research papers address a variety of topics including negation in relevant logics; a defense of dialetheic theory of negation; stable (...) negation in logic programming; antirealism and falsity; and negation, denial, and language change in philosophical logic. Suited to scholars and graduate students in the fields of philosophy, logic mathematics, computer science, and linguistics. Annotation copyrighted by Book News, Inc., Portland, OR. (shrink)

This paper ties together three threads of discussion about the following question: in accepting a system of axioms S, what else are we thereby warranted in accepting, on the basis of accepting S? First, certain foundational positions in the philosophy of mathematics are said to be epistemically stable, in that there exists a coherent rationale for accepting a corresponding system of axioms of arithmetic, which does not entail or otherwise rationally oblige the foundationalist to accept statements beyond the logical consequences (...) of those axioms. Second, epistemic stability is said to be incompatible with the implicit commitment thesis, according to which accepting a system of axioms implicitly commits the foundationalist to accept additional statements not immediately available in that theory. Third, epistemic stability stands in tension with the idea that in accepting a system of axioms S, one thereby also accepts soundness principles for S. We offer a framework for analysis of sets of implicit commitment which reconciles epistemic stability with the latter two notions, and argue that all three ideas are in fact compatible. (shrink)

dolce, the first top-level ontology to be axiomatized, has remained stable for twenty years and today is broadly used in a variety of domains. dolce is inspired by cognitive and linguistic considerations and aims to model a commonsense view of reality, like the one human beings exploit in everyday life in areas as diverse as socio-technical systems, manufacturing, financial transactions and cultural heritage. dolce clearly lists the ontological choices it is based upon, relies on philosophical principles, is richly formalized, and (...) is built according to well-established ontological methodologies, e.g. OntoClean. Because of these features, it has inspired most of the existing top-level ontologies and has been used to develop or improve standards and public domain resources. Being a foundational ontology, dolce is not directly concerned with domain knowledge. Its purpose is to provide the general categories and relations needed to give a coherent view of reality, to integrate domain knowledge, and to mediate across domains. In these 20 years dolce has shown that applied ontologies can be stable and that interoperability across reference and domain ontologies is a reality. This paper briefly introduces the ontology and shows how to use it on a few modeling cases. (shrink)

This essay identifies two different methodological strategies used by the proponents of anarchism. In what is termed the "ontological" approach, the rationale for anarchism depends on a particular representation of human nature. That characterization of "being" determines the relation between the individual and the structures of social life. In the alternative approach, the epistemological status of "representation" is challenged, leaving human subjects without stable identities. Without the possibility of stable human representations, the foundations underlying the exercise of institutional power can (...) be challenged. This epistemological discussion is traced from Max Stirner to the twentieth-century movement known as poststructuralism. (shrink)