Feedback and its effectiveness in a computer-aided personalized system of instruction course

In a computer-managed version of Keller's personalized system of instruction, students received frequent feedback from more advanced students within the course. Overall accuracy of student-provided feedback was 87%, and students complied with 61% of the feedback.     

Suppression of scientific research: Bahramdipity and Nulltiple scientific discoveries

The fairy tale The Three Princes of Serendip can be taken to be allegorical of not only chance discovery (serendipity) but of other aspects of scientific discovery as well. Just as Horace Walpole coined serendipity, so can the term bahramdipity be derived from the tale and defined as the cruel suppression of a serendipitous discovery. Suppressed, unpublished discoveries are designated nulltiples. Several examples are presented to make the case that bahramdipity is an existent aspect of scientific discovery. Other examples of non-ideal scientific research and discovery are provided in order to contrast and clarify the meaning and use of bahramdipity. Additional allegories of scientific discovery are taken from the tale and a hope for the strengthening of scientific integrity is expressed.     

Stigma and Discrimination in Health-Care Provision to Drug Users: The Role of Values, Affect, and Deservingness Judgments

This study examined the role of values, affect, and deservingness judgments in health professionals' views of patients with stigmatized conditions (e.g., drug dependence). Participants were 277 nurses who responded to a survey containing 2 scenarios of a nurse providing high- or low-quality care to a patient with a condition related to prolonged use of alcohol or heroin. Affective responses to the patient were more positive for nurses with higher self-transcendence values, and more negative for nurses with higher conservation values. Deservingness judgments were predicted by positive and negative affect toward the patient, but not by attributions of responsibility for drug use. Deservingness judgments emerged as strong predictors of nurses' satisfaction with the provision of high- or low-quality care. The findings imply that the deservingness judgments made by nurses reflected strong entitlement norms concerning the provision of proper care for patients that were independent of patients' perceived responsibility for their condition.     

Revising Carnap’s Semantic Conception of Modality

I provide a tableau system and completeness proof for a revised version of Carnap??s semantics for quantified modal logic. For Carnap, a sentence is possible if it is true in some first order model. However, in a similar fashion to second order logic, no sound and complete proof theory can be provided for this semantics. This factor contributed to the ultimate disappearance of Carnapian modal logic from contemporary philosophical discussion. The proof theory I discuss comes close to Carnap??s semantic vision and provides an interesting counterpoint to mainstream approaches to modal logic. Despite its historical origins, my intention is to demonstrate that this approach to modal logic is worthy of contemporary attention and that current debate is the poorer for its absence.     

When your face doesn't fit: employment discrimination against people with facial disfigurements

This study aimed to investigate the recruitment prospects of people with facial disfigurement and a contrasting group of wheelchair users, representing a functional impairment with little aesthetic impact. Three applications were made to each of 144 vacancies using three CVs and cover letters rotated around conditions in which one applicant was described as a wheelchair user, another had a noncontagious facial disfigurement, and the third (control condition) had neither. There was evidence of discrimination against people with facial disfigurement in jobs requiring high (but not low) levels of customer contact, and against wheelchair users for jobs entailing high or low‐customer contact. Aesthetic considerations, social norms, and the possibility of stigma by association are discussed as potential underlying factors.     

Immersive virtual reality as a rehabilitative technology for phantom limb experience: a protocol.

This paper describes a study protocol to investigate the use of immersive virtual reality as a treatment for amputees' phantom limb pain. This work builds upon prior research using mirror box therapy to induce vivid sensations of movement originating from the muscles and joints of amputees' phantom limbs. The present project transposes movements of amputees' anatomical limbs into movements of a virtual limb presented in the phenomenal space of their phantom limb. It is anticipated that the protocol described here will help reduce phantom limb pain.     

The Metaphysics of Causal Models

This paper presents an attempt to integrate theories of causal processes—of the kind developed by Wesley Salmon and Phil Dowe—into a theory of causal models using Bayesian networks. We suggest that arcs in causal models must correspond to possible causal processes. Moreover, we suggest that when processes are rendered physically impossible by what occurs on distinct paths, the original model must be restricted by removing the relevant arc. These two techniques suffice to explain cases of late pre?mption and other cases that have proved problematic for causal models.

Terrorism as technology: A discussion of the theoretical underpinnings

Conclusion This short article is intended as a brief discussion of the concept of terrorism as technology, and the impact of military thinking about new threat models on the theoretical analysis of terrorism. Many of the concepts developed in discussions of the RMA seem tailor-made to terrorism. Indeed, terrorism in its conventional, political form was one of the new threats that the RMA has been applied to. However, the thesis of this article is that the new form of terrorism that debuted so spectacularly on September 11 can also be theoretically analyzed within the prism of the RMA. Toby Blyth, BA (Japanese)/LLB (Western Australia), Solicitor - Supreme Court of England and Wales, Supreme Court of New South Wales, Federal and High Courts of Australia, ANZIIF (Fellow). The opinions and conclusions contained herein are solely those of the author and do not reflect policy, institutional opinion, or proprietary information of his employer. This paper is based in part on research carried out by the author for and on a paper published in 1999 by the Terrorism Research Centre, Inc.     

Counterlegals and Necessary Laws

Necessitarian accounts of the laws of nature meet an apparent difficulty: for them, counterlegal conditionals, despite appearing to be substantive, seem to come out as vacuous. I argue that the necessitarian may use the presuppositions of counterlegal discourse to explain this. If the typical presupposition that necessitarianism is false is made explicit in counterlegal utterances, we obtain sentences such as 'If it turns out that the laws of nature are contingent, then if the laws had been otherwise, then such and such would have been the case', which are non-vacuous and very often true. This goes a long way towards resolving the difficulty for necessitarianism.