Referenzsemantik in der Partnermodellierung

How can we explain that an assertion on something perceived can be understood in the same manner by somebody who cannot perceive that scene? This problem bases the interest in computational linguistics in how listener modeling could possibly be harmonized with reference semantics. Mental images substituting real perception appear as a way out. The architecture of the listener model has to be adapted to the creation and use of such pictorial data structures. Furthermore, the relation between the latter and a verbal (i. e., propositional) representation must be understood. The resulting architecture of a listener model with reference semantics can be employed to solve communicational problems from three general classes in a better way, as is demonstrated by an example implementation.     

One-session cognitive treatment of dental phobia: preparing dental phobics for treatment by restructuring negative cognitions

The purpose of this study was to investigate the effectiveness of a single session of cognitive restructuring in a sample of phobic dental patients. Fifty-two patients were randomly assigned to one of three conditions: cognitive restructuring (modification of negative cognitions), provision of information (about oral health and dental treatment), and a waiting list control condition. Both interventions maximally lasted one hour. In comparison with the waiting list control condition and the information intervention condition, the cognitive intervention condition not only showed a large decrease in frequency and believability of negative cognitions, but also exhibited a clear decline in dental trait anxiety. Analysis at a follow-up of one year demonstrated a further, drastic reduction in dental anxiety in both intervention conditions, wherein the difference among these conditions was not maintained. It is concluded that it is possible to obtain substantial reductions of dental trait anxiety through a single session of cognitive restructuring. Nevertheless, repeated exposure to the dental situation seems necessary for a further reduction of anxiety.     

Is space-time discrete or continuous? — An empirical question

In this paper I present the Discrete Space-Time Thesis, in a way which enables me to defend it against various well-known objections, and which extends to the discrete versions of Special and General Relativity with only minor difficulties. The point of this presentation is not to convince readers that space-time really is discrete but rather to convince them that we do not yet know whether or not it is. Having argued that it is an open question whether or not space-time is discrete, I then turn to some possible empirical evidence, which we do not yet have. This evidence is based on some slight differences between commonly occurring differential equations and their discrete analogs.I would like to express my thanks to John McKie with whom I have had several inspiring conversations about discrete space. I would also like to thank the audience of a paper on this topic which I read in October 1991 at the College Park campus of the University of Maryland. Finally I would like to thank the referees ofSynthese for their comments. One of them, in particular, should be thanked especially for help in improving Appendix Two.     

The third person effect: Social distance and perceived media bias

Two studies were conducted to determine the conditions under which the third person effect (Davison, 1983) operates. It was hypothesized that the effect would be accentuated as target groups of others became more remote from the self. A second objective was to determine whether the effect operates in the absence of overtly persuasive intent in the media. Television programmes concerned with moral themes were employed as stimuli. The results further support Davison's claim that overestimation of media effects is greater when people imagine the responses of others whom they do not know than those of familar individuals. The results also indicate that the third person effect does operate in the absence of perceived persuasive intent, but is accentuated when bias is perceived by viewers.     

GRW and the tails problem

The GRW theory is a recent attempt to solve the measurement problem in quantum mechanics, and the tails problem is a well-known and potentially fatal criticism of the GRW theory. The first half of the paper is an exposition of the measurement problem, the GRW theory, and the tails problem. In the remainder of the paper, two methods of dealing with the tails problem are considered: first, altering the GRW theory so as to avoid the tails problem; and second, denying that the tails problem is more than a novel aspect of a universal vagueness in the way scientific theories relate to everyday language.     

Assessment of HIV counselling and social care services in a London hospital

The use of, and satisfaction with, counselling and social care services was investigated among HIV-infected clients attending HIV specialist climes at Guy's Hospital and Southwark Social Services, London. A survey of 71 clients with HIV infection was carried out using a self-administered questionnaire. The greatest demand was for advice about income support, housing, counselling for the HIV test, counselling for depression or anxiety, psychological support for coping with HIV, help with sleeping problems, mobility allowance, and help with furniture/household appliances. Overall, 57% thought the service was good or excellent; 66% of respondents thought they would use the services in the future. Over nine in ten clients had used the psychosocial support services at some stage since their HIV diagnosis, although only two-thirds anticipated that they would have need of these services in the future. The psychosocial support service will need to remain responsive to the shift in demand for this service, as well as the changing needs of clients who use it.