Monotone Majorizable Functionals

Several properties of monotone functionals (MF) and monotone majorizable functionals (MMF) used in the earlier work by the author and van de Pol are proved. It turns out that the terms of the simply typed lambda-calculus define MF, but adding primitive recursion, and even monotonic primitive recursion changes the situation: already Z.Z(1 — sg) is not MMF. It is proved that extensionality is not Dialectica-realizable by MMF, and a simple example of a MF which is not hereditarily majorizable is given.     

Medical Ethics Research Between Theory and Practice

The main object of criticism of present-day medical ethics is the standard view of the relationship between theory and practice. Medical ethics is more than the application of moral theories and principles, and health care is more than the domain of application of moral theories. Moral theories and principles are necessarily abstract, and therefore fail to take account of the sometimes idiosyncratic reality of clinical work and the actual experiences of practitioners. Suggestions to remedy the illnesses of contemporary medical ethics focus on re-establishing the connection between the internal and external morality of medicine. This article discusses the question how to develop a theoretical perspective on medical ethical issues that connects philosophical reflection with the everyday realities of medical practice. Four steps in a comprehensive approach of medical ethics research are distinguished: (1) examine health care contexts in order to obtain a better understanding of the internal morality of these practices; this requires empirical research; (2) analyze and interpret the external morality governing health care practices; sociological study of prevalent values, norms, and attitudes concerning medical-ethical issues is required; (3) creation of new theoretical perspectives on health care practices; Jensen's theory of healthcare practices will be useful here; (4) develop a new conception of bioethics that illuminates and clarifies the complex interaction between the internal and external morality of health care practices. Hermeneutical ethics can be helpful for integrating the experiences disclosed in the empirical ethical studies, as well as utilizing the insights gained from describing the value-contexts of health care practices. For a critical and normative perspective, hermeneutical ethics has to examine and explain the moral experiences uncovered, in order to understand what they tell us.     

频率差异假设和长时记忆的视优效应

本文包括长时记忆视优效应的三项实验。实验一使用汉语为学习材料,北京人与广东人为被试;实验二使用英语为学习材料、美国人与中国人为被试;实验三使用日语为学习材料、日本人为被试。三项实验都有视觉、听觉两种呈现方式。三项实验的结果都有利于证明频率差异假设,即如果在书面言语中经验某字词的频率高于在口语中经验该字词的频率,则该字词的视觉呈现优于听觉呈现。     

Intention-based evaluations of distributive actions by 4-month-olds

Four-month-olds’ ability to consider the intentions of agents performing distributive actions was investigated in four experiments, using the Violation of Expectation paradigm (VoE) (Experiments 1–3) and the Preferential Looking paradigm (Experiment 4). In Experiment 1, infants were presented with two events showing two types of failed attempts to perform a distribution. In an attempt to distribute fairly, the distributor first tried to reach one of the recipients to deliver an apple, he failed, and then attempted to reach the other recipient to deliver a second apple and also failed. In an attempt to distribute unfairly, a different distributor tried unsuccessfully to bring resources always to the same recipient. Infants looked reliably longer at failed fair distribution events, suggesting that they did not just react to the actions outcomes and they attended to agents' intentions. Experiments 2 and 3 assessed alternative explanations based on perceptual factors or affiliative behaviors. In Experiment 4, during the test trials, infants were shown both distributors simultaneously and they preferred to look at the fair rather than at the unfair distributor. Overall, these findings reveal an early ability to take into account distributors’ intentions and a preference for watching agents that tried to distribute resources fairly.     

Positive Interpretation Bias Predicts Longitudinal Decreases in Social Anxiety

Theoretical models of social anxiety suggest that distorted interpretation processes contribute to its development and maintenance, although the pathways through which this occurs are not well understood. Therefore, the present longitudinal study sought to determine whether negative interpretation bias, positive interpretation bias, and interpretation inflexibility (the degree to which participants correctly revise initial interpretations) predict changes in social anxiety over time. In an important advance over prior studies, individual differences in working memory capacity (WMC) were accounted for, as WMC is thought to play a crucial role in the generation and maintenance of interpretation biases. Following a baseline assessment of social anxiety, interpretation biases, and WMC, participants completed follow-up assessments of social anxiety both 2 weeks (n = 106) and 4 weeks (n = 96) later. After controlling for baseline social anxiety and WMC, greater positive interpretation bias was found to predict lower social anxiety at both follow-ups. Neither negative interpretation bias nor interpretation inflexibility was significantly associated with follow-up social anxiety. These results provide support for greater positive interpretation bias as a facilitator of decreases in social anxiety and a potential target for clinical intervention.     

Attachment Relationships as Predictors of Cognitive Interpretation and Response Bias in Late Adolescence

We investigated behavioural and cognitive representations of attachment style. Specifically, we sought to test continuity in attachment style and whether participants' perceptions of their attachments to parents, peers, and romantic partners would predict cognitive interpretation and responses to 12 ambiguous situation scenarios. Participants were 161 undergraduate students (17–20 years) who completed the Parental Bonding Instrument, the Attachment Style Questionnaire and the Inventory of Parent and Peer Attachment (peer subscale). Participants then indicated whether they interpreted ambiguous situations as threatening versus non-threatening and how they would respond (proactively, aggressively, or avoidantly). Regression analyses revealed that insecure parental attachments were the main predictor of participants' interpretations and their planned responses, followed by romantic attachments. Peer attachments played little role in the predictions. These results suggest that interpretation of situations and subsequent plans of action may be influenced by attachment related experiences. We discuss our findings in terms of their relevance to attachment theory and their application to our understanding of the concepts of attachment in development of interpersonal relationships.     

How to Regulate a Practice: The Case of Cosmetic Surgery

How should a practice, subservient to a public good, be regulated in order to guarantee fair access without encouraging improper claims? In the first place, a clear understanding of the goal of the practice is indispensable for knowing what criteria the regulation must contain. As to the purely formal aspect, the regulation of any practice must include both general rules and particular instances. Finally, to resolve conflicts, committees in which different kinds of expertise are represented should be installed. These three theses are illustrated by the Dutch regulation for cosmetic surgery.     

Realism in energy transition processes: an example from Bohmian quantum mechanics

In this paper we study in details a system of two weakly coupled harmonic oscillators from the point of view of Bohm’s interpretation of quantum mechanics. This system may be viewed as a simple model for the interaction between a photon and a photodetector. We obtain exact solutions for the general case. We then compute approximate solutions for the case where one oscillator is initially in its first excited state (a single photon) reaching the other oscillator in its ground state (the photodetector). The approximate solutions represent the state of both oscillators after the interaction, which is not an eigenstate of the individual hamiltonians for each oscillator, and therefore the energies for each oscillator do not exist in the Copenhagen interpretation of Quantum Mechanics. We use the approximate solutions that we obtained to compute Bohmian trajectories and to study the energy transfer between the oscillators. We conclude that, even using the Bohmian view, the energy of each individual oscillator is not well defined, as the nonlocal quantum potential is not negligible even after the coupling is turned off.     

The propensity theory: a decision-theoretic restatement

Probability theory is important because of its relevance for decision making, which also means: its relevance for the single case. The propensity theory of objective probability, which addresses the single case, is subject to two problems: Humphreys’ problem of inverse probabilities and the problem of the reference class. The paper solves both problems by restating the propensity theory using (an objectivist version of) Pearl’s approach to causality and probability, and by applying a decision-theoretic perspective. Contrary to a widely held view, decision making on the basis of given propensities can proceed without a subjective-probability supplement to propensities.