Towards a theory of intention revision

Although the change of beliefs in the face of new information has been widely studied with some success, the revision of other mental states has received little attention from the theoretical perspective. In particular, intentions are widely recognised as being a key attitude for rational agents, and while several formal theories of intention have been proposed in the literature, the logic of intention revision has been hardly considered. There are several reasons for this: perhaps most importantly, intentions are very closely connected with other mental states—in particular, beliefs about the future and the abilities of the agent. So, we cannot study them in isolation. We must consider the interplay between intention revision and the revision of other mental states, which complicates the picture considerably. In this paper, we present some first steps towards a theory of intention revision. We develop a simple model of an agent’s mental states, and define intention revision operators. Using this model, we develop a logic of intention dynamics, and then investigate some of its properties.     

Coalitional Capacities and Environmental Strategies to Prevent Underage Drinking

Coalitions are the most common platform for implementing community-level environmental strategies (ES), such as media, policy, or enforcement for substance use prevention. The current study examines the associations between two types of coalition capacity (general and innovation-specific) and ES implementation efforts and outputs within 14 intervention communities over a three-year period. Efforts refer to the amount of energy exerted to implement an ES while outputs refer to the materials produced through these efforts. Quantitative measures of capacity were provided by coalition key informants and expert-raters. Additionally, Training and Technical Assistance (TTA) provided proactively to improve the implementation of ES was also examined. Greater general capacity, as rated by a coalition informant, was associated with more ES policy effort. Both expert-rated general and innovation-specific capacity, however, were associated with greater ES outputs. Study results also found that community coalitions that endorsed weaker mobilization, structure and task leadership, (measures of general capacity), utilized more TTA compared to those who perceived their coalition as having greater capacity. Moreover, communities that utilized more TTA resources reported a greater number of successful policy changes. The study supports the need to consider both general and innovation-specific capacity for ES implementation and offers promising preliminary findings regarding the role of TTA for improving coalitions’ capacity to facilitate policy change.     

Surviving Salem

No abstract available for this article.     

The Moral Hazards Of Christian Obligations In Brazil's Rural Zona Da Mata

From 1999 through 2003, applied research in Brazil's Zona da Mata was undertaken to identify the reasons why some households choose, either actively or by default, not to participate in rural assistance efforts. Class-based guiding hypotheses held that participation would correlate positively with economic, demographic and health measures of household need, but found only limited support. These hypotheses found their greatest support within the community's small but rapidly growing Pentecostal congregation, but were generally contradicted within the community's much larger Catholic congregation, and totally contradicted by full participation, regardless of need or religious affiliation, within one of the research community's 14 hamlets. The hamlet's contradiction resulted from a pooling of an extended family's labour and resources to achieve full participation. The larger community's contradiction of the guiding hypotheses resulted from the wealthiest Catholic households' self-described ‘Christian obligations’ to provide garden produce upon request to the poorest Catholic households.

The earth does not yield its fruits without a particular human response to God's gift, that is to say, without work. (John Paul II, Centesimus Annus, cited in Neuhaus 1999 Neuhaus, Fr. Richard John. 1999. Appointment in Rome, New York: The Crossroads Publishing Company.  [Google Scholar])     

Virtually Jewish

SUMMARY

The authors created a Web-based tutorial for novice-to-intermediate users of the World Wide Web using primarily Jewish content in order to encourage potential Jewish users of the World Wide Web. The lessons contain information on Jewish-themed Web sites and progressively complex information about how to use the Web. Tips and practice exercises are included.     

Using an integrated simulation environment for the risk based design of advanced driver assistance systems

When designing new Advanced Driver Assistance Systems (ADAS), the existing guidelines like the RESPONSE 3 Code of Practice imply intense testing of the system prior series production. Within the EU-FP7-Project ISi-PADAS a new methodology of risk based design has been established which includes an integrated simulation platform. This integration enables intense testing of new prototypes in an accelerated way and therefore enhances the design process while directly combining the simulation results with a risk matrix.This paper describes the new methodology while focussing on the software framework and the procedure of risk assessment in detail. It shows the general approach as well as the appropriate steps taken for an ADAS prototype developed in the context of ISi-PADAS.     

Development of a Career Stress Scale for Hospital Nurses: Implications for Workplace Counseling

The author performed 3 studies to investigate the construct validation and applicability of a Career Stress Scale for hospital nurses. After conducting an exploratory factor analysis on a sample of 141 nurses in the 1st study, the author examined divergent and convergent validity in the 2nd study, and performed a confirmatory factor analysis to test the hypothesized model on a sample of 284 teaching hospital nurses. The final study aimed to expand the findings, and the author used multigroup structural equation modeling to examine the measurement invariance of the Career Stress Scale for a district hospital, in a sample of 166 nurses. Recommendations for future studies and workplace counseling are discussed.     

The psychological reality of practical representation

ABSTRACT

We represent the world in a variety of ways: through percepts, concepts, propositional attitudes, words, numerals, recordings, musical scores, photographs, diagrams, mimetic paintings, etc. Some of these representations are mental. It is customary for philosophers to distinguish two main kinds of mental representations: perceptual representation (e.g., vision, auditory, tactile) and conceptual representation. This essay presupposes a version of this dichotomy and explores the way in which a further kind of representation – procedural representation – represents. It is argued that, in some important respects, procedural representations represent differently from both purely conceptual representations and purely perceptual representations. Although procedural representations, just like conceptual and perceptual representations, involve modes of presentation, their modes of presentation are distinctively practical, in a sense which I will clarify. It is argued that an understanding of this sort of practical representation has important consequences for the debate on the nature of know-how.     

Robot-enabled support of daily activities in smart home environments

Smart environments offer valuable technologies for activity monitoring and health assessment. Here, we describe an integration of robots into smart environments to provide more interactive support of individuals with functional limitations. RAS, our Robot Activity Support system, partners smart environment sensing, object detection and mapping, and robot interaction to detect and assist with activity errors that may occur in everyday settings. We describe the components of the RAS system and demonstrate its use in a smart home testbed. To evaluate the usability of RAS, we also collected and analyzed feedback from participants who received assistance from RAS in a smart home setting as they performed routine activities.