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)

The $\Omega $ numbers—the halting probabilities of universal prefix-free machines—are known to be exactly the Martin-Löf random left-c.e. reals. We show that one cannot uniformly produce, from a Martin-Löf random left-c.e. real $\alpha $, a universal prefix-free machine U whose halting probability is $\alpha $. We also answer a question of Barmpalias and Lewis-Pye by showing that given a left-c.e. real $\alpha $, one cannot uniformly produce a left-c.e. real $\beta $ such that $\alpha - \beta $ is neither left-c.e. (...) nor right-c.e. (shrink)

The objective of this study is to evaluate auditors’ perceived responsibility for fraud detection. Auditors play a critical role in managing fraud risk within organizations. Although professional standards and guidance prescribe responsibility in the area, little is known about auditors’ sense of responsibility for fraud detection, the factors affecting perceived responsibility, and how responsibility affects auditor performance. We use the triangle model of responsibility as a theoretical basis for examining responsibility and the effects of accountability, fraud type, and auditor type (...) on auditors’ perceived fraud detection responsibility. We also test how perceived responsibility affects auditor brainstorming performance given the importance of brainstorming in audits. A sample of 878 auditors participated in an experiment with accountability pressure and fraud type manipulated randomly between subjects. As predicted, accountable auditors report higher detection responsibility than anonymous auditors. We also find a significant fraud type × auditor type interaction with external auditors perceiving the most detection responsibility for financial statement fraud, while internal auditors report similar detection responsibility for all fraud types. Analysis of the triangle model’s formative links reveals that professional obligation and personal control are significantly related to responsibility, while task clarity is not. Finally, the results indicate that perceived responsibility positively affects the number of detection procedures brainstormed and partially mediates the significant accountability–brainstorming relation. (shrink)

We prove that the generalized cancellation axiom for incomplete comparative probability relations introduced by Rios Insua and Alon and Lehrer is stronger than the standard cancellation axiom for complete comparative probability relations introduced by Scott, relative to their other axioms for comparative probability in both the finite and infinite cases. This result has been suggested but not proved in the previous literature.

When classes of structures are not first-order definable, we might still try to find a nice description. There are two common ways for doing this. One is to expand the language, leading to notions of pseudo-elementary classes, and the other is to allow infinite conjuncts and disjuncts. In this paper we examine the intersection. Namely, we address the question: Which classes of structures are both pseudo-elementary and ${\mathcal {L}}_{\omega _1, \omega }$ -elementary? We find that these are exactly the classes (...) that can be defined by an infinitary formula that has no infinitary disjunctions. (shrink)

At Moore’s time, the main-stream ethical theory is the doctrine that pleasure alone is good as an end as held by the hedonistic utilitarianism. Moore, however, asserts that good, not composed of any parts, is a simple notion and indefinable, and naturalistic ethical theories, in particular hedonistic utilitarianism, interpret intrinsic good as a property of a single natural object---pleasure, which is also the sole end of life, thus violates naturalistic fallacy. Moore seems to believe that there exist things other than (...) pleasure that are also intrinsically good and has searched for them. But Moore has not clearly stated what these things are, nor has he given any justification for why they are intrinsically good. This paper discusses Moore’s arguments and difficulties of utilitarianism. With the subjectivistic utilitarian theory of value, Unified Utilitarian Theory (UTT) discards the classification of value into intrinsic and instrumental and proves to be exempt of all theexisting difficulties with utilitarianism related to pleasure, including naturalistic fallacy, vagueness of pleasure and sole end of life, double counting, etc. (shrink)

The practice of nursing involves ongoing interactions between nurses' and clients' lived bodies. Despite this, several scholars have suggested that the “lived body” (Merleau‐Ponty, 1962) has not been given its due place in nursing practice, education or research (Draper, J Adv Nurs, 70, 2014, 2235). With the advent of electronic health records and increased use of technology, face‐to‐face assessment and embodied understanding of clients' lived bodies may be on the decline. Furthermore, staffing levels may not afford the time nurses need (...) to be as “present” with their clients in embodied ways. The failure to attend to the lived body may contribute to missed opportunities for care and decreased quality of life for both clients and healthcare practitioners. In this paper, we undertake an analysis of selected aspects of the work of Maurice Merleau‐Ponty. The aim is to advance understanding of the affordances this work may offer to enhancing client–nurse interactions within the practice of nursing. Merleau‐Ponty's notions of embodiment, intersubjectivity and intercorporeality as articulated in his seminal texts The Phenomenology of Perception (New York, NY: Routledge, 2012) and The Visible and the Invisible (Evanston, IL: Northwestern University Press, 1968) are examined. These three constructs are discussed as they relate to the lived body in client–nurse interactions in nursing practice and education. Finally, implications of how attention to “the lived body” could shape interactions and have the potential to foster increased quality of life of clients and nurses are considered. (shrink)

Recent work by Wan and McLean has shown that all quantum measurements may be reduced to local position measurements. Using an array of particle detectors as the measuring apparatus we show how a model employing superselection rules and unitary evolution leads to a single detector triggering in each act of measurement. We also present an explicit model of particle detection as a unitary ionization process producing a single ion in the detector, subsequent amplification of which to the visible can be (...) described adequately in classical terms. (shrink)

Originally published in 1954, this is the first full-length account of the history of the Working Men’s College in St.Pancras, London. One hundred and fifty years on from its foundation in 1854, it is the oldest adult educational institute in the country. Self-governing and self-financing, it is a rich part of London’s social history. The college stands out as a distinctive monument of the voluntary social service founded by the Victorians, unchanged in all its essentials yet adapting itself to the (...) demands of each generation of students and finding voluntary and unpaid teachers to continue its tradition. (shrink)

Originally published in 1954, this is the first full-length account of the history of the Working Men’s College in St.Pancras, London. One hundred and fifty years on from its foundation in 1854, it is the oldest adult educational institute in the country. Self-governing and self-financing, it is a rich part of London’s social history. The college stands out as a distinctive monument of the voluntary social service founded by the Victorians, unchanged in all its essentials yet adapting itself to the (...) demands of each generation of students and finding voluntary and unpaid teachers to continue its tradition. (shrink)

Individuals typically resist changing their minds, but support for same-sex marriage increased from 35% to 61% between 2006-2016. What explains this anomaly?

This book, originally released in 1919, contains five lectures given by the author while he was Professor to the Inns of Court during the late 1800s. The lectures were revised to include notes & annotations by A.H.F. LeFroy.

This article focuses on the ways that sexual risk behaviors are related to race, class, and gender among low-income, culturally diverse women in South Florida. Data concerning sexual risk and gender are presented in terms of race and class variations. Results indicate that, in general, these women have a high degree of knowledge about acquired immune deficiency syndrome, a quite contemporary awareness of women's gendered subordination, and a lack of trust in heterosexual relationships. Attitudes, beliefs, and knowledge, however, are not (...) translated into sexual behaviors with men partners that would reduce their vulnerability to infection with the human immunodeficiency virus. The data indicate that race is a major factor that places women into an underclass position. Consequently, without socioeconomic resources, gendered behaviors have a direct influence on sexual risk. Multivariate analyses indicate that those women who are sex workers are significantly more likely to negotiate safe sex with clients than with main partners. The research not only challenges mainstream thinking about race, class, and gender but also provides overdue information on the vulnerability of women to HIV infection. (shrink)

There is a paucity of experimental data addressing how peers influence adolescent risk-taking. Here, we examined peer effects on risky decision-making in adults and adolescents using a virtual social context that enabled experimental control over the peer “interactions”. 40 adolescents (age 11-18) and 28 adults (age 20-38) completed a risk-taking (Wheel of Fortune) task under 4 conditions: in private; while being observed by (fictitious) peers; and after receiving ‘risky’ or ‘safe’ advice from the peers. For high-risk gambles (but not medium-risk (...) or even gambles), adolescents made more risky decisions under peer observation than adults. Adolescents, but not adults, tended to resist ‘safe’ advice for high-risk gambles. Although both groups tended to follow ‘risky’ advice for high-risk gambles, adults did so more than adolescents. These findings highlight the importance of distinguishing between the effects of peer observation and peer advice on risky decision-making. (shrink)

Traditionally, there has been a clear distinction between classical systems and quantum systems, particularly in the mathematical theories used to describe them. In our recent work on macroscopic quantum systems, this distinction has become blurred, making a unified mathematical formulation desirable, so as to show up both the similarities and the fundamental differences between quantum and classical systems. This paper serves this purpose, with explicit formulations and a number of examples in the form of superconducting circuit systems. We introduce three (...) classes of physical systems with finite degrees of freedom: classical, standard quantum, and mixed quantum, and present a unified Hilbert space treatment of all three types of system. We consider the classical/quantum divide and the relationship between standard quantum and mixed quantum systems, illustrating the latter with a derivation of a superselection rule in superconducting systems. (shrink)

Reaction-diffusion systems which have reaction term satisfying f(-q) = -f(q) tend strongly to form striped patterns. Haken’s slaving principle is used to derive differential equations for unstable mode amplitudes close to the Turing instability. This connects a dynamical symmetry to pattern selection, with possible relevance to biological and chemical pattern-forming phenomena.

How can literature, which consists of nothing more than the description of imaginary events and situations, offer any insight into the workings of "human reality" or "the human condition"? Can mere words illuminate something that we call "reality"? Bernard Harrison answers these questions in this profoundly original work that seeks to re-enfranchise reality in the realms of art and discourse. In an ambitious account of the relationship between literature and cognition, he seeks to show how literary fiction, by deploying (...) words against a background of imagined circumstances, allows us to focus on the roots, in social practice, of the meanings by which we represent our world and ourselves. Engaging with philosophers and theorists as diverse as Wittgenstein, Sartre, Merleau-Ponty, Foucault, Derrida, F. R. Leavis, Cleanth Brooks, and Stanley Fish, and illustrating his ideas through readings of works by Swift, Woolf, Appelfeld, and Dickens, among others, this book presents a systematic defense of humanism in literary studies, and of the study of the Humanities more generally, by a distinguished scholar. (shrink)