In this paper I would like to explore Sellars' answers to these general epistemological questions in order to get clear about the sense in which he can be said to be in the empiricist tradition broadly construed and to ascertain what resources he has available to demarcate science from other (rationally acceptable or unacceptable) forms of inquiry. My contention will be that to the degree that one moves away from the notion of basic empirical proposition in the strong sense (...) it becomes increasingly difficult to draw the distinction between empiricism and other general epistemological traditions and increasingly difficult to distinguish science frow other forms of inquiry. Moreover, this latter difficulty tends to render vacuous the claims of scientific realism. (shrink)

This anthology consists of forty-nine of Geach’s previously published papers on logic. He opens his Preface by writing: "I bring together here almost all my English articles that I have previously published and have not already collected or cannibalized in other books." It contains his first published paper "Designation and Truth" from Analysis 1947-48 as well as his elegant sketch of a decidable entailment system in the 1970 Philosophical Review. For the most part he has made only stylistic changes and (...) added some notes. So, he claims: "all articles appear without substantial change." However, he admits that he divided his "Quantification Theory and the Problem of Identifying Objects of Reference" from the now classic 1963 volume of Acta Philosophica Fennica. He divided it because he wanted to separate his strong advocacy of a substitution interpretation of the quantifiers from some views on quotation marks, about which he is less than certain. The papers are not in mere chronological order. They are organized by topic within chapters entitled: Historical Essays, Traditional Logic, Theory of Reference and Syntax, Intentionality, Quotation and Semantics, Set Theory, Identity Theory, Assertion, Imperatives and Practical Reasoning, and Logic in Metaphysics and Theology. The chapter titles are a fair guide to content. But note the following. Two lucid papers defending von Wright’s notion of entailment are in the Intentionality chapter. The essay "Ascriptivism" in the Assertion chapter is relevant to discussions of free will because he argues: "to ascribe an act to agent is a causal description of the act" and he urges a search for a non-Humean analysis of causality. The essays in the last chapter are: "Nominalism," "Some problems about time," and "God’s relation to the world.". (shrink)

Prescriptive rules guide human behavior across various domains of community life, including law, morality, and etiquette. What, specifically, are rules in the eyes of their subjects, i.e., those who are expected to abide by them? Over the last sixty years, theorists in the philosophy of law have offered a useful framework with which to consider this question. Some, following H. L. A. Hart, argue that a rule’s text at least sometimes suffices to determine whether the rule itself covers a case. (...) Others, in the spirit of Lon Fuller, believe that there is no way to understand a rule without invoking its purpose — the benevolent ends which it is meant to advance. In this paper we ask whether people associate rules with their textual formulation or their underlying purpose. We find that both text and purpose guide people’s reasoning about the scope of a rule. Overall, a rule’s text more strongly contributed to rule infraction decisions than did its purpose. The balance of these considerations, however, varied across experimental conditions: In conditions favoring a spontaneous judgment, rule interpretation was affected by moral purposes, whereas analytic conditions resulted in a greater adherence to textual interpretations. In sum, our findings suggest that the philosophical debate between textualism and purposivism partly reflects two broader approaches to normative reasoning that vary within and across individuals. Keywords: , the concept of law, rules, legal psychology, Hart, Fuller. (shrink)

Background: Expanded newborn screening generates incidental results, notably carrier results. Yet newborn screening programmes typically restrict parental choice regarding receipt of this non-health serving genetic information. Healthcare providers play a key role in educating families or caring for screened infants and have strong beliefs about the management of incidental results. Methods: To inform policy on disclosure of infant sickle cell disorder (SCD) carrier results, a mixed-methods study of healthcare providers was conducted in Ontario, Canada, to understand attitudes regarding result (...) management using a cross-sectional survey (N = 1615) and semistructured interviews (N = 42). Results: Agreement to reasons favouring disclosure of SCD carrier results was high (65.1%–92.7%) and to reasons opposing disclosure was low (4.1%–18.1%). Genetics professionals expressed less support for arguments favouring disclosure (35.3%–78.8%), and more agreement with arguments opposing disclosure (15.7%–51.9%). A slim majority of genetics professionals (51.9%) agreed that a reason to avoid disclosure was the importance of allowing the child to decide to receive results. Qualitatively, there was a perceived “duty” to disclose, that if the clinician possessed the information, the clinician could not withhold it. Discussion: While a majority of respondents perceived a duty to disclose the incidental results of newborn screening, the policy implications of these attitudes are not obvious. In particular, policy must balance descriptive ethics (ie, what providers believe) and normative ethics (ie, what duty-based principles oblige), address dissenting opinion and consider the relevance of moral principles grounded in clinical obligations for public health initiatives. (shrink)

First of all, we would like to gratefully thank all commentators for the attention and effort they have put into reading and responding to our review paper [this issue] and for useful observations that suggest novel applications for our framework. We understand and accept that some of our claims might appear controversial and raise skepticism, because the overall neural framework we have proposed is difficult to frame in established categories, given its strong multidisciplinary character. To make an example, Elsevier (...) is publishing the British Neuroscience Association (BNA) 2017 Special Issue Collection. However, our paper could not fully fit in any of their Special Issues—attention, motivation, behavior; sensory and motor systems; novel treatments and translational neuroscience; genetics and epigenetics; learning and memory; neurodegenerative disorders and ageing; developmental neuroscience; neuronal, glial and cellular mechanisms; neuroendocrine and autonomic nervous systems; psychiatry and mental health; methods and techniques. Perhaps because our paper was mathematically, physically, biologically (neuroscientifically), and phenomenologically motivated from the start? Nevertheless, venturing in novel, fresh, testable proposals is badly needed in contemporary neuroscience, so to break into “the utter darkness of the inner mechanism of psychic acts… during the production of the concomitant phenomena of perception and thought, namely, feelings, consciousness and volition”—as Cajal had already observed in his opus magnus ‘Textura’. But as he soberly confessed: “This ideal is still very distant” (Ramon y Cajal, 1899-1904, p. 1,141). In the pursuit of that very ideal, neuroscience and psychology have had, and continue to have, a plethora of movements and schools of thought: behaviorism, cognitivism, neural Darwinism, social constructivism, Bayesian optimization...In our paper, we propose to go a step further, via the notion of topodynamics, towards “projectionism.” In what follows, trying to elucidate the main features of this Emperor’s new clothing, we proceed with the responses to the comments received. (shrink)

Spatial and temporal heterogeneity are often described as important factors having a strong impact on biodiversity. The effect of heterogeneity is in most cases analyzed by the response of biotic interactions such as competition of predation. It may also modify intrinsic population properties such as growth rate. Most of the studies are theoretic since it is often difficult to manipulate spatial heterogeneity in practice. Despite the large number of studies dealing with this topics, it is still difficult to understand (...) how the heterogeneity affects populations dynamics. On the basis of a very simple model, this paper aims to explicitly provide a simple mechanism which can explain why spatial heterogeneity may be a favorable factor for production. We consider a two patch model and a logistic growth is assumed on each patch. A general condition on the migration rates and the local subpopulation growth rates is provided under which the total carrying capacity is higher than the sum of the local carrying capacities, which is not intuitive. As we illustrate, this result is robust under stochastic perturbations. (shrink)

The fearful ape hypothesis proposes that heightened fearfulness in humans is adaptive. However, despite its attractive anthropocentric narrative, the evidence presented for greater fearfulness in humans versus other apes is not sufficient to support this claim. Conceptualization, context, and comparison are strongly lacking in Grossmann's proposal, but are key to understanding variation in the fear response among individuals and species.

Advancing second-person neuroscience will need strong theories, as well as the new methods detailed by Schilbach et al. I assess computational theories, enactive theories, and cognitive/information processing theories, and argue that information processing approaches have an important role to play in second-person neuroscience. They provide the closest link to brain imaging and can give important insights into social behaviour.

We present the system SUBSEXPL used for simulating and comparing explicit substitutions calculi. The system allows the manipulation of expressions of the λ-calculus and of three different styles of explicit substitutions: the λσ, the λse and the suspension calculus. A variation of the suspension calculus, which allows for combination of steps of β-contraction is included too. Implementations of the η-reduction are provided for each style. Other explicit substitutions calculi can be easily incorporated into the system due to its modular structure. (...) The uses of the system include: the visualization of the contractions of the λ-calculus in de Bruijn notation, and of guided one-step reductions as well as normalization via each of the associated substitution calculi. Many useful facilities are included: reductions can be easily recorded as text files, LATEX outputs can be generated and several examples for dealing with arithmetic operations and computational operators such as conditionals and repetitions in the λ-calculus are available. The system can be executed over Emacs using the x-symbol mode in such a way that λ-terms and terms of the explicit substitutions calculi are represented in its natural syntax avoiding the necessity of repeatedly generating LATEX outputs. The system has been of great help for systematically comparing explicit substitutions calculi, as well as for understanding properties of explicit substitutions such as the Preservation of Strong Normalization. In addition, it has been used for teaching basic properties of the λ-calculus such as: computational adequacy, the usefulness of de Bruijn's notation and of making explicit substitutions in real implementations. (shrink)

Most philosophers of science now believe that scientific data are theory laden, i.e., the evaluation of data is influenced by prior theoretical beliefs. Although there is historical and psychological evidence that is consistent with the theory-laden position, experimental evidence is needed to directly test whether prior beliefs influence the evaluation of scientific data. In a fully counterbalanced design, one group of subjects received evidence that dinosaurs were cold-blooded, and another group of subjects received evidence that dinosaurs were warm-blooded. The subjects (...) reported a strong belief in whichever theory they had read about. Then subjects were presented with a piece of data that supported one theory and contradicted the other theory. The identical piece of data was rated as more believable when it was consistent with the subject's theory than when it was inconsistent. These results provide clear support for the position that scientific data are theory laden. (shrink)

Worldwide, church membership is decreasing. A decline in the number of young adults that attend church services is also evident. The purpose of the research was to determine whether the application of a well-established body of knowledge of marketing theories and principles could be used by churches to encourage young adults to return to the church. The application of services marketing to the church as a non-profit organisation is discussed by focussing on non-physical and physical atmospheric cues in the church's (...) servicescape that could enhance church attendance. A quantitative approach was used by testing the opinions of 200 church service attendees of different denominations. The findings indicated that certain elements in the servicescape of a church may be useful in attracting young adults. It was found that music is a strong determinant of whether young adults attend church services, followed by layout and design of the church and then by the signs and symbols used in the church. Females reported significantly higher levels of positive perceptions concerning the layout and design. Although the research showed that some marketing elements, such as a positive servicescape, could improve church attendance, other personal elements such as forming personal relationships with fellow Christians and God need to be further explored. (shrink)

Background: The American Medical Association, the British Medical Association and the Canadian Medical Association have guidelines that specifically discourage physicians from self-prescribing or prescribing to family members, but only the BMA addresses informal prescription requests between colleagues. Objective: To examine the practices of paediatric providers regarding self-prescribing, curbsiding colleagues, and prescribing and refusing to prescribe to friends and family. Methods: 1086 paediatricians listed from the American Academy of Paediatrics 2007 web-based directory were surveyed. Results: 44% of eligible survey respondents returned (...) usable surveys. Almost half of respondents had prescribed for themselves. An equal number had informally requested a prescription from a colleague. Three-quarters stated they had been asked to prescribe a prescription drug for a first-degree or second-degree relative, and 51% had been asked by their spouse. Eighty-six per cent stated that they had refused to write a prescription on at least one occasion for a friend or family member. The following reasons “strongly influenced” their decision to refuse a prescription request: outside of provider’s expertise ; patient’s need for his or her own physician ; not medically indicated ; need for a physical examination. Conclusion: These data confirm that most physicians have engaged in self-prescribing or curbside requests for prescriptions. It can be argued that curbsiding is more morally problematic than self-prescribing because it implicates a third party, and should be discouraged regardless of whether the requester is a colleague, family member or friend. (shrink)

This volume answers the question: Why do we believe what we believe? It examines current research on the concept of beliefs, and the development in our understanding of the process of believing. It takes into account empirical findings in the field of neuroscience regarding the processes that underlie beliefs, and discusses the notion that beyond the interactive exploratory analysis of sensory information from the complex outside world, humans engage in an evaluative analysis by which they attribute personal meaning and relevance (...) to the probabilistic representations of objects and events. Beliefs exert a strong influence on behaviour, decision-making, and identifying and solving problems. Despite their importance, beliefs have until recently not been at the centre of scientific interest. In fact, "belief" is an ill-defined phenomenon. From a transdisciplinary perspective the actual approaches to understanding belief seem incompatible as they attempt to highlight such different topics as "belief - religion", "belief - spirituality", "belief - faith", "belief - knowledge", "belief - attitude", "belief - disbelief", "belief - illusion", and "believing - brain function". This situation contradicts the idea that belief is close to pathological phenomena and that it should be eliminated from scientific discussions. Rather, believing is fundamental for understanding the many problems of every-day life. In fact, the book shows that beliefs are relevant for politics, international affairs, economy, law, or religions also in modern societies. This book presents the increasing scientific interest in beliefs and believing, and reflects the change in focus from the content aspect of belief towards the fluid nature of believing. (shrink)

Multifunctional agricultural systems seek to expand upon production-based benefits to enhance family wellbeing and animal health, reduce inputs, and improve environmental services such as biodiversity and water quality. However, in many countries a landscape-level conversion is uneven at best and stalled at worst. This is particularly true across the eastern rural landscape in the United States. We explore the role of social networks as drivers of system transformation within dairy production in the eastern United States, specifically rotational grazing as an (...) alternative management option. We hypothesize the importance of weak ties within farmer social networks as drivers of change. In Wisconsin, Pennsylvania, and New York, we conducted 53 interviews with confinement, low-intensity, and rotational grazing dairy producers as well as 35 interviews with associated network actors. Though confinement and grazier networks had similar proportions of strong and weak ties, confinement producers had more market-based weak ties, while graziers had more weak-ties to government agencies and other graziers in the region. These agency weak ties supported rotational graziers through information exchange and cost sharing, both crucial to farmers’ transitions from confinement-based production to grazing systems. While weak ties were integral to initial innovation, farmers did not maintain these relationships beyond their transition to grazing. Of equal importance, grazier weak-tie networks did not include environmental organizations, suggesting unrealized potential for more diverse networks based on environmental services. By understanding the drivers, we can identify barriers to expanding weak tie networks and emergent properties in order to create institutions and policies necessary for change. (shrink)

SummaryThis study evaluated the prevalence of overweight and obesity in the male Sardinian population, and verifies that it has increased over the last 30 years. Data were collected during 2003–2004 from military registers in the Archive of the Military District of Cagliari for the years 1969 and 1998. A total of 22,345 forms were analysed from all Sardinia. The conscripts were classified on the basis of their place of residence and socioeconomic status. The overall prevalence of overweight and obesity in (...) Sardinia were 4.33% and 0.55%, respectively, for the conscripts of 1969 and 9.8% and 3% for 1998. Olbia-Tempio was the province with the highest incidence of overweight and obesity in 1969, and Nuoro had the highest incidence in 1998. Distribution of body mass index, overweight and obesity across the island showed a statistically significant heterogeneity that strongly decreased from 1969 to 1998. Among the conscripts of 1969, the incidence of overweight and obesity were higher in rural than in urban regions. An opposite trend was observed for the 1998 prevalence, it being more frequent in urban than rural regions. Comparison with other Italian regions was made. The percentages of overweight and obese individuals in Sardinia have markedly increased during the last 30 years, but their low incidence with respect to other Italian populations could be explained by the genetic peculiarity of the island. The change in the internal distribution of obesity clearly reflects socioeconomic changes. (shrink)

Background and objective: Assuming the hypothesis that the general practitioner can and should be a key player in making end-of-life decisions for hospitalised patients, perceptions of GPs’ role assigned to them by hospital doctors in making withdrawal decisions for such patients were surveyed.Design: Questionnaire survey.Setting: Urban and rural areas.Participants: GPs.Results: The response rate was 32.2% , and it was observed that 70.8% of respondents believed that their participation in withdrawal decisions for their hospitalised patients was essential, whereas 42.1% believed that (...) the hospital doctors were sufficiently skilled to make withdrawal decisions without input from the GPs. Most respondents were found to believe that they had the necessary skills and enough time to participate in withdrawal decisions. The last case of treatment withdrawal in hospital for one of their patients was described by 40% of respondents, of whom only 40.0% believed that they had participated actively in the decision process. The major factors in the multivariate analysis were the GP’s strong belief that his or her participation was essential , information on admission of the patient given to the GP by the hospital department , rural practice , visit to the patient dying in hospital and a request by the family to be kept informed about the patient .Conclusion: Strong interest was evinced among GPs regarding end-of-life issues, as well as considerable experience of patients dying at home. As GPs are more closely corrected to patients’ families, they may be a good choice for third-party intervention in making end-of-life decisions for hospitalised patients. (shrink)

In many research studies, tumor biopsies are an unavoidable requirement for achieving key scientific aims. Yet some commentators view mandatory research biopsies as coercive and suggest they should be optional, or at least optional until further data are obtained regarding their scientific usefulness. Further complicating the ethical picture is the fact that some research biopsies offer a potential for clinical benefit to trial participants. We interviewed and surveyed a convenience sample of participants in phase I clinical trials at a single (...) institution. Our primary aim was to describe phase I participants’ understanding of whether a research biopsy offered them the prospect of medical benefit. We also endeavored to describe participants’ views about biopsies—specifically, the benefits of biopsies, if any, and whether biopsies were acceptable, risky, or discouraged trial participation. Finally, we collected data on demographics and attitudes to see if any strong correlations with misunderstanding, acceptability, or riskiness existed. Overall, the respondents tended to view research biopsies as acceptable, though they did not succeed in identifying the lack of benefit of a research biopsy. These findings call for renewed efforts in consent conversations and documents to carefully describe the benefits, or lack thereof, of research biopsies. (shrink)

Obtaining prospective written consent from women to participate in trials when they are experiencing an obstetric emergency is challenging. Alternative consent pathways, such as gaining verbal consent at enrolment followed, later, by obtaining written consent, have been advocated by some clinicians and bioethicists but have received little empirical attention. We explored women’s and staff views about the consent procedures used during the internal pilot of a trial, where the protocol permitted staff to gain verbal consent at recruitment. Interviews with staff (...) and participating women. Data were analysed thematically and interviews were cross-compared to identify differences and similarities in participants’ views about the consent procedures used. Women and some staff highlighted benefits to obtaining verbal consent at trial enrolment, including expediting recruitment and reducing the burden on those left exhausted by their births. However, most staff with direct responsibility for taking consent expressed extreme reluctance to proceed with enrolment until they had obtained written consent, despite being comfortable using verbal procedures in their clinical practice. To account for this resistance, staff drew a strong distinction between research and clinical care and suggested that a higher level of consent was needed when recruiting into trials. In doing so, staff emphasised the need to engage women in reflexive decision-making and highlighted the role that completing the consent form could play in enabling and evidencing this process. While most staff cited their ethical responsibilities to women, they also voiced concerns that the absence of a signed consent form at recruitment could expose them to greater risk of litigation were an individual to experience a complication during the trial. Inexperience of recruiting into peripartum trials and limited availability of staff trained to take consent also reinforced preferences for obtaining written consent at recruitment. While alternative consent pathways have an important role to play in advancing emergency medicine research, and may be appreciated by potential recruits, they may give rise to unintended ethical and logistical challenges for staff. Staff would benefit from training and support to increase their confidence and willingness to recruit into trials using alternative consent pathways. This qualitative research was undertaken as part of the GOT-IT Trial. Date of registration 26/03/2014. (shrink)

This paper examines some ethical issues arising from whole-genome association studies for multigenic diseases, focusing on the case of autism. Events occurring following the announcement of a genetic test for autism in France (2005–2009) are described to exemplify the ethical controversies that can arise when genetic testing for autism is applied prematurely and inappropriately promoted by biotech companies. The authors argue that genetic tests assessing one or a few genes involved in highly multigenic disorders can only be useful if: (1) (...) the genetic linkage found in the scientific study must be statistically convincing, reproducible and also applicable to the population to which the individual considered belongs (scientific validity); (2) the relative risk conferred by the ‘high-risk’ allele should be high enough to be significant to the patient (significant impact); (3) use of the test should lead to some improvement of outcome for the patient, resulting from adapted treatment if available, or at least from adjustment of lifestyle (or life goals) prompted by the new knowledge generated (clinical utility). Decisions concerning genetic testing for autism involve scientific judgement, value judgement and good knowledge of a constantly evolving therapeutic environment. The implementation of genetic tests for highly multigenic diseases thus requires strong mechanisms to ensure that they are used in a fashion that can benefit patients, and these mechanisms must be able to cope with rapid progress in scientific knowledge and therapeutic intervention. (shrink)

In a time which it is not amiss to term “the Dark Ages of logic”, Karl Christian Friedrich Krause stayed not only true to logic but actually did something for its advancement. Besides making systematic use of Venn-diagrams long before Venn, Krause — once more taking his inspiration from Leibniz — propounded what appears to be the first completely symbolic systematic representation of logical forms, strongly suggestive of the powerful symbolic languages that have become the mainstay of logic since the (...) beginning of the 20th century. However, Krause’s limits in logic are also clearly visible: Krause’s method in logic is, in the main, not axiomatic; it is combinatorial. More importantly, Krause remained entirely within the confines of traditional syllogistics, neglecting propositional logic and, of course, first-order relational terms. (shrink)

Responding to a major pandemic and planning for allocation of scarce resources under crisis standards of care requires coordination and cooperation across federal, state and local governments in tandem with the larger societal infrastructure. Maryland remains one of the few states with no state-endorsed ASR plan, despite having a plan published in 2017 that was informed by public forums across the state. In this article, we review strengths and weaknesses of Maryland’s response to COVID-19 and the role of the Maryland (...) Healthcare Ethics Committee Network in bridging gaps in the state’s response to prepare health care facilities for potential implementation of ASR plans. Identified “lessons learned” include: Deliberative Democracy Provided a Strong Foundation for Maryland’s ASR Framework; Community Consensus is Informative, Not Normative; Hearing Community Voices Has Inherent Value; Lack of Transparency & Political Leadership Gaps Generate a Fragmented Response; Pandemic Politics Requires Diplomacy & Persistence; Strong Leadership is Needed to Avoid Implementing ASR … And to Plan for ASR; An Effective Pandemic Response Requires Coordination and Information-Sharing Beyond the Acute Care Hospital; and The Ability to Correct Course is Crucial: Reconsidering No-visitor Policies. (shrink)

The coronavirus disease 2019 pandemic is altering dynamics in academia, and people juggling remote work and domestic demands – including childcare – have felt impacts on their productivity. Female authors have faced a decrease in paper submission rates since the beginning of the pandemic period. The reasons for this decline in women’s productivity need to be further investigated. Here, we analyzed the influence of gender, parenthood and race on academic productivity during the pandemic period based on a survey answered by (...) 3,345 Brazilian academics from various knowledge areas and research institutions. Productivity was assessed by the ability to submit papers as planned and to meet deadlines during the initial period of social isolation in Brazil. The findings revealed that male academics – especially those without children – are the least affected group, whereas Black women and mothers are the most impacted groups. These impacts are likely a consequence of the well-known unequal division of domestic labor between men and women, which has been exacerbated during the pandemic. Additionally, our results highlight that racism strongly persists in academia, especially against Black women. The pandemic will have long-term effects on the career progression of the most affected groups. The results presented here are crucial for the development of actions and policies that aim to avoid further deepening the gender gap in academia. (shrink)

Trait emotional intelligence concerns people’s perceptions of their emotional functioning. Two studies investigated this construct in surgeons and comparison occupations. We hypothesized that trait EI profiles would differ both within surgical specialties as well as between them and other professions. Study 1 compared the trait EI profiles of four different surgical specialties. There were no significant differences amongst these specialties or between consultant surgeons and trainees in these specialties. Accordingly, the surgical data were combined into a single target sample that (...) was compared against samples of engineers, executives and senior managers, lawyers, junior military managers, nurses, and salespeople. Surgeons scored significantly higher on global trait EI than junior military managers, but lower than executives and senior managers, salespeople, and nurses. There were no significant differences vis-à-vis engineers or lawyers. A MANOVA confirmed a similar pattern of differences in the four trait EI factors. Global trait EI scores correlated strongly with single-question measures of job satisfaction and job performance in the surgical sample. These findings suggest that interventions to optimize the trait EI profiles of surgeons can be helpful in relation to job satisfaction, job performance, and overall psychological wellbeing. (shrink)

We show that Sacks' and Shoenfield's analogs of jump inversion fail for both tt- and wtt-reducibilities in a strong way. In particular we show that there is a ${\mathrm{\Delta }}_{2}^{0}$ set B > tt ∅′ such that there is no c.e. set A with A′ ≡ wtt B. We also show that there is a ${\mathrm{\Sigma }}_{2}^{0}$ set C > tt ∅′ such that there is no ${\mathrm{\Delta }}_{2}^{0}$ set D with D′ ≡ wtt C.

In determining the time of Archilochos it is useless to begin with the eclipse—an event which strongly appeals to the modern mind, as it seems open to exact astronomical and mathematical computation. Even granted from the first and as a matter of course that Archilochos saw the eclipse and that it was total or nearly total in the place where he saw it, there are two objections: the astronomical data for the two eclipses of 711 B.C. and 648 B.C. are (...) as yet insufficient even for Paros and Thasos; we do not know for certain where the eclipse poem was written: probably it was in Paros, as the speaker is Lykambes, but it may be Thasos, not to mention Euboia, Crete, or Sicily. The whole thing is elusive, and Alan Blakeway, when he stated the case for 711—perhaps ‘too emphatically’, as he concedes—is quite clear in this respect. The most he affirms is that ‘there is nothing to choose between the two eclipses astronomically’; and what he asks for is a new examination of ‘the literary evidence without that unconscious bias in favour of the 648 B.C. eclipse which so far has influenced it’. That is quite a reasonable demand, and it is only with Blakeway's re-examination of the literary evidence that I find fault. (shrink)

I. Scientific method as a mental operation [by] T. Case.--II. On some aspects of the scientific method [by] F. Gotch.--III. Physiology; its scope and method [by] C. S. Sherrington.--IV. Inheritance in animals and plants [by] W. F. R. Weldon.--V. Psycho-physical method [by] W. McDougall.--VI. The evolution of double stars [by] A. H. Fison.--VII. Anthropology: the evolution of currency and coinage [by] Sir R. C. Temple.--VIII. Archaeological evidence [by] W. M. F. Petrie.--IX. Scientific method as applied to history [by] T. B. (...) Strong. (shrink)

Canada, as one of the three Allied nations collaborating on atomic energy development during the Second World War, had an early start in applying its new knowledge and defining a new profession. Owing to postwar secrecy and distinct national aims for the field, nuclear engineering was shaped uniquely by the Canadian context. Alone among the postwar powers, Canadian exploration of atomic energy eschewed military applications; the occupation emerged within a governmental monopoly; the intellectual content of the discipline was influenced by (...) its early practitioners, administrators, scarce resources, and university niches; and a self-recognized profession coalesced later than did its American and British counterparts. This paper argues that the history of the emergence of Canadian nuclear engineers exemplifies unusually strong shaping of technical expertise by political and cultural context. (shrink)

To each computable enumerable (c.e.) set A with a particular enumeration {As}s∈ω, there is associated a settling function mA(x), where mA(x) is the last stage when a number less than or equal to x was enumerated into A. One c.e. set A is settling time dominated by another set B (B >st A) if for every computable function f, for all but finitely many x, mB(x) > f(m₄(x)). This settling-time ordering, which is a natural extension to an ordering of the (...) idea of domination, was first introduced by Nabutovsky and Weinberger in [3] and Soare [6]. They desired a sequence of sets descending in this relationship to give results in differential geometry. In this paper we examine properties of the <st ordering. We show that it is not invariant under computable isomorphism, that any countable partial ordering embeds into it, that there are maximal and minimal sets, and that two c.e. sets need not have an inf or sup in the ordering. We also examine a related ordering, the strong settling-time ordering where we require for all computable f and g, for almost all x, mB(x) > f(mA(g(x))). (shrink)

Arthur Norman Prior (1914-69) was a logician and philosopher from New Zealand who contributed crucially to the development of ‘non-standard’ logics, especially of the modal variety. His greatest achievement was the invention of modern temporal logic, worked out in close connection with modal logic. However, his work in logic had a much broader scope. He was also the founder of hybrid logic, and he made important contributions to deontic logic, modal logic, the theory of quantification, the nature of propositions and (...) the history of logic. In addition, he discussed questions of ethics, free will, and general theology. Prior’s philosophical works comprise about 200 titles. His earliest articles center on philosophical theology and historical studies of Scottish Reformed Theology. This led on to the publication of his first influential work on ethics: Logic and The Basis of Ethics (1949). With the invention of tense-logic in the early 1950s, his focus shifted to investigations into the syntax of tempo-modal logic leading to his seminal Time and Modality (1957), a volume derived from his John Locke Lectures in Oxford in 1956. Furthermore Prior, together with the Irish mathematician and logician C.A. Meredith (1904-76), made important early contributions to the semantics of possible worlds. Prior’s tense-logic provided a strong conceptual framework for problems pertaining to the philosophy of time. In Time and Modality, Prior discussed the philosophical implications of Ruth Barcan’s famous formulae for tense-logic, and in the 1960s he worked on the notion of the present. The most persistent problem running through Prior’s work is his study of the questions surrounding human freedom and divine foreknowledge, and more general philosophical problems emerging from this classical theological question. His thorough analysis of this problem, with the conceptual tools of tense-logic, received a crucial impetus from his correspondence with the young Saul Kripke, when the latter suggested the semantic tool of branching time to Prior. Prior’s development of two solutions based on branching time for the problem of future contingency, the Peircean and the Ockham solution, was most thoroughly developed in Past, Present and Future (1967), the most important work published by Prior. Characteristically for Prior’s methodological approach, the development of these two solutions were at the same time a development of two new systems of tense logic, and vice versa. One of Prior’s significant contributions to logic was his work on world propositions and instant propositions. In the course of developing these notions he also made one of the earliest formulations of hybrid logic. In Papers on Time and Tense (1968), he presented this idea in a more detailed manner in the context of his four grades of tense-logical involvement. (shrink)

Ethologists and others studying animal behavior in a spirit are in need of a descriptive language and method that are neither anachronistically bound by behaviorist scruples nor prematurely committed to particular Just such an interim descriptive method can be found in intentional system theory. The use of intentional system theory is illustrated with the case of the apparently communicative behavior of vervet monkeys. A way of using the theory to generate data - including usable, testable data - is sketched. The (...) underlying assumptions of this approach can be seen to ally it directly with theorizing in evolutionary biology, which has recently come under attack from Stephen Gould and Richard Lewontin, who castigate it as the Their arguments, which are strongly analogous to B. F, Skinner's arguments against point to certain pitfalls that attend the careless exercise of such thinking (and rival varieties of thinking as well), but do not constitute a fundamental objection to either adaptationist theorizing or its cousin, intentional system theory. (shrink)

Did the September 11, 2001 terrorist attacks on the U.S. cause the values of teenagers in the U.S. to change? Did their previously important self-esteem and self-actualization values become less important and their survival and safety values become more important? Changes in the values of teenagers are important for practitioners, managers, marketers, and researchers to understand because high school students are our current and future employees, managers, and customers, and research has shown that values impact work and consumer-related attitudes and (...) behaviors. Further, studies that compared higher to lower performing for-profit and not-for-profit companies have found that higher performing organizations had strong values that permeated their organizations [Collins J. C., and J. I. Porras: 1994, Built to Last: Successful Habits of Visionary Companies (New York, Harper Business); O’Reilly, C. A. and J. A. Chatman: 1996, in B. M. Staw and L. L. Cummings (eds.), Research in Organizational Behavior, vol. 18 (JAI Press, Greenwhich, CT), pp. 157–200; O’Reilly, C. A.: 1989, California Management Review 31(4), 9–25; Posner, B. Z., and W. H. Schmidt: 1996, Public Personnel Management, 25(3), 277–298; Rousseau, D.: 1990, Group and Organization Studies 15(4), 448–460; Schein, E. H.: 2004, Organizational Culture and Leadership. San Francisco, Jossey Bass)]. While one study of adults found value changes, no known studies have explored if the values of teenagers also changed post-9/11. This study filled that research gap by exploring the values of a random sample of 1000 U.S. teenagers in grades 9 to 12 pre- and post-9/11, using a demographic questionnaire and the Rokeach Value Survey. The research results indicated that teenage survival, safety, and security values (a world at peace, freedom, national security, and salvation) increased in importance while their self-esteem and self-actualization values (a sense of accomplishment, inner harmony, pleasure, self-respect, and wisdom) decreased in importance, mirroring the changes for adults. The meaning of these findings for practitioners, managers, marketers and researchers was discussed. (shrink)

Emotion influences parameters of goal-directed whole-body movements in several ways. For instance, previous research has shown that approaching (moving toward) pleasant stimuli is easier compared to approaching unpleasant stimuli. However, some studies found that when emotional pictures are viewed for a longer time, approaching unpleasant stimuli may in fact be facilitated. The effect of viewing duration may have modulated whole-body approach movement in previous research but this has not been investigated to date. In the current study, participants initiated a step (...) forward after viewing neutral, high-arousal pleasant and high-arousal unpleasant stimuli. The viewing duration of the stimuli was set to seven different durations, varying from 100 to 4000 ms. Valence and arousal scores were collected for all stimuli. The results indicate that both viewing duration and the arousal of the stimuli influence kinematic parameters in forward gait initiation. Specifically, longer viewing duration, compared to shorter viewing duration, (a) diminished the step length and peak velocity in both neutral and emotional stimuli, (b) increased reaction time in neutral stimuli and, (c) decreased reaction time in pleasant and unpleasant stimuli. Strikingly, no differences were found between high-arousal pleasant and high-arousal unpleasant stimuli. In other words, the valence of the stimuli did not influence kinematic parameters of forward step initiation. Instead the arousal level (neutral: low; pleasant and unpleasant: high) explained the variance found in the results. The kinematics of forward gait initiation seemed to be reflected in the subjective arousal scores, but not the valence scores. So it seems arousal affects forward gait initiation parameters more strongly than valence. In addition, longer viewing duration seemed to cause diminished alertness, affecting GI parameters. These results shed new light on the prevailing theoretical interpretations regarding approach motivation in the literature, which warrants further examination in future research. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Triumphus in PalatioJohn F. MillerAs one of the many tokens of its symbolic centrality in Roman culture, the Capitoline Hill received the triumphator at the end of his ceremonial return to Rome. For centuries generals who had been granted a triumphus concluded the elaborate sacral procession through the city with a sacrifice at the Temple of Jupiter Optimus Maximus, the god most intimately associated with this religious institution.1 The (...) strongly local character of Roman cults made it nearly unthinkable to celebrate the solemn event anywhere else in Rome, but artistic imagination feels itself less bound by religious scruples. Two such ingenious revisions of the triumphal parade displace its endpoint to the Temple of Apollo on the Palatine Hill. Virgil imagines Octavian's great triple triumph of 29 B.C. taking place there, while other ancient evidence leads us to believe that the victor really proceeded to the Capitoline like countless imperatores triumphantes before him.2 The poet sets the celebration at the shrine of the deity credited with the victory at Actium, the shrine which Octavian built adjacent to his own house. The Palatine was becoming the imperial palace complex, the triumph a prerogative of the imperial family.3 When these developments had been fully realized, Nero in December A.D. 674 staged an eccentric victory procession which likewise climaxed at Apollo's Palatine temple. As returning victor in the festivals [End Page 409] of Greece he aimed to align himself with Apollo as patron of the arts, expressing now in topographical terms his frequent association with that deity.5 The lyre-playing god greeted the lyre-playing emperor, and vice versa. On the other hand, it is not irrelevant that one whom Pliny termed imperator scaenicus, "an actor-emperor" (Pan. 46.4), rode in the path of Virgil's fictional Augustus. The present essay explores the phenomenon triumphus in Palatio by explicating the two instances in the light of their ideological impulses. A further aim is to throw into relief the Augustan dimensions of Nero's triumphal ceremony, to show how the emperor in effect acted the part of Octavian riding in triple triumph.On the shield in Aeneid 8 Virgil inventively describes the triple triumph which Octavian celebrated in August 29 B.C. for victories in Illyricum, Actium, and Egypt:at Caesar, triplici invectus Romana triumphomoenia, dis Italis votum immortale sacrabat,maxima ter centum totam delubra per urbem.laetitia ludisque viae plausuque fremebant;omnibus in templis matrum chorus, omnibus arae;ante aras terram caesi stravere iuvenci.ipse sedens niveo candentis limine Phoebidona recognoscit populorum aptatque superbispostibus; incedunt victae longo ordine gentes...(8.714-22)One finds here familiar features of any triumphus: the imperator triumphans formally entering the city precinct (714-15), bystanders en route applauding the procession (717), the sacrifice of bulls (719), concluding dedications at a temple (720-22), and the display of captives, placards, and models illustrating the victor's conquests (722-28). But Virgil has also rewritten this triumph to take in a wider sacral and historical context. In verse 719 the general prayers and sacrifices and the prominent role of women suggest a supplicatio, a ritual often associated with but [End Page 410] formally distinct from triumphs.6 While triumphing commanders fulfilled vows which they made on the Capitol before their campaigns, Octavian's triumph is marked by the impressive votum of numerous mighty shrines throughout the city (715-16).7 Caesar's celebration looks ahead as well as backwards; it in effect announces the emergent leader's vast program of building and restoring temples, which was especially prominent in the period immediately after the triumph of 29.8 For Virgil, Caesar's triumphus inaugurates the religious renewal of Rome.By far the most momentous changes to the regular triumph occur in the scene at Apollo's gleaming temple, which in this context must be the new Palatine shrine.9 Whether dona... populorum (721) are the [End Page 411] ceremonial crowns which captives presented to the victor or euphemistically denote battle spoils from various peoples, the act of affixing them to the temple suggests that the triumphator has reached the triumph's end point. So does... (shrink)

We investigate the complexity of isomorphisms of computable structures on cones in the Turing degrees. We show that, on a cone, every structure has a strong degree of categoricity, and that degree of categoricity is${\rm{\Delta }}_\alpha ^0 $-complete for someα. To prove this, we extend Montalbán’sη-system framework to deal with limit ordinals in a more general way. We also show that, for any fixed computable structure, there is an ordinalαand a cone in the Turing degrees such that the exact (...) complexity of computing an isomorphism between the given structure and another copy${\cal B}$in the cone is a c.e. degree in${\rm{\Delta }}_\alpha ^0\left$. In each of our theorems the cone in question is clearly described in the beginning of the proof, so it is easy to see how the theorems can be viewed as general theorems with certain effectiveness conditions. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Latin Literature. A HistoryRichard F. ThomasGian Biagio Conte. Latin Literature. A History. Translated by Joseph B. Solodow. Revised by Don Fowler and Glenn W. Most. Baltimore and London: The Johns Hopkins University Press, 1994. xxxiii 1 827 pp. $65.00.The work under review is a translation of Gian Biagio Conte’s 1987 book Letteratura latina; Manuale storico dalle origini alla fine dell’ impero, a book whose title page acknowledged the (...) collaboration of Alessandro Barchiesi, Emanuele Narducci, Giovanni Polara, Giuliano Ranucci, and Gianpiero Rosati. In the translation these scholars have been moved into C.’s “Acknowledgements,” making room for the new group on the title page, as given above. Of these, Don Fowler provided a bibliography and “in a sense has helped to direct the whole editorial enterprise,” while Glenn Most (like Solodow, one of C.’s English translators), rewrote sections on reception. Elaine Fantham introduces the work with an encomiastic “blurb” and general appreciation of the scholarship of C. C.’s own preface adds to the “gang of five” original collaborators a new group of three (Mario Labate, Alessandro Schiesaro, Rolando Ferri) who “have freely given me the support of their attentive and considerate criticism.” One recent reviewer talks of “the thorough control of the material by the single mind of the original author” (Robert P. Sonkowsky, The Key Reporter 61.3 [1996] 13), as does another for whom “the book is the production of a single mind” (J. Griffin, “The Long Latin Line,” review in New York Review of Books [Oct. 6, 1994] 43); it therefore seems only right to register my dissent from such a judgment.Much in Latin studies right now seems to involve a pack mentality: teams toil away for their grex, writing encomiastic and disingenuously uncritical reviews, or footnotes acknowledging the help of other teammates, attending conferences, organizing group-solidifying essay collections, even new series and manifestoes promising a “New Latin”—a term that seems to have no particular theoretical or intellectual content, nor a purpose other than to appeal vaguely for some sort of postmodernist approval. Barbara F. McManus’ summary of a paper on the uses of e-mail for mobilizing interest groups, delivered at a conference on computers and the classics by the very editor of the book under review, Don Fowler (“The Scroll and the Screen: Computers and Classical Literary Criticism”), gives a clear account of procedure and techniques in use:Electronic communication allows small groups with strongly related interests to form, cohere, and influence the larger disciplinary community; because such groups start with fundamental agreement on intellectual frameworks and approaches, they can develop ideas rapidly and in depth.(2/8/97 )What happens when other, less organized and more individual, insights fail to coincide with the “fundamental agreement” of the “group,” and how, we might wonder, will such individualism hold up in the face of this mission to “influence the larger disciplinary community”? [End Page 471]Be all this as it may and whatever the realities of authorship, the achievement of Gian Biagio Conte’s volume is a signal one. Latin Literature is a work of considerable value, a work which I have already used with success in teaching the history of Latin literature. Whatever the state of its authorship, I would now move to a review of some of its merits, which are considerable, and in which C. himself is obviously a participant throughout. The book begins with the origins of Latin literature and extends to Bede and the national literatures that were to transmit Latin literature into the vernaculars, that would in turn connect the essential themes and fundamental concerns of classical Latin literature to the cognate and evolving experiences of later antiquity and the middle ages. The original authors worked to a formulaic scheme: generally “Life,” “Works,” some treatment of cultural/political/social context, “Literary Success” (for the Italian “Fortuna”—I would have preferred “Reception”), and bibliography. This latter, again by Fowler, is developed from the Italian version and is generally made more international, often with the result that it sits somewhat uneasily with the original articles, which are largely unchanged, and whose authors presumably made... (shrink)

Low mean fundamental frequency (F 0) in men’s voices has been found to positively influence perceptions of dominance by men and attractiveness by women using standardized speech. Using natural speech obtained during an ecologically valid social interaction, we examined relationships between multiple vocal parameters and dominance and attractiveness judgments. Male voices from an unscripted dating game were judged by men for physical and social dominance and by women in fertile and non-fertile menstrual cycle phases for desirability in short-term and long-term (...) relationships. Five vocal parameters were analyzed: mean F 0 (an acoustic correlate of vocal fold size), F 0 variation, intensity (loudness), utterance duration, and formant dispersion (D f , an acoustic correlate of vocal tract length). Parallel but separate ratings of speech transcripts served as controls for content. Multiple regression analyses were used to examine the independent contributions of each of the predictors. Physical dominance was predicted by low F 0 variation and physically dominant word content. Social dominance was predicted only by socially dominant word content. Ratings of attractiveness by women were predicted by low mean F 0, low D f , high intensity, and attractive word content across cycle phase and mating context. Low D f was perceived as attractive by fertile-phase women only. We hypothesize that competitors and potential mates may attend more strongly to different components of men’s voices because of the different types of information these vocal parameters provide. (shrink)