A resource-bounded agent addresses the newcomb problem

In the Newcomb problem, the standard arguments for taking either one box or both boxes adduce what seem to be relevant considerations, but they are not complete arguments, and attempts to complete the arguments rely upon incorrect principles of rational decision making. It is argued that by considering how the predictor is making his prediction, we can generate a more complete argument, and this in turn supports a form of causal decision theory.     

The medium or the message? Communication relevance and richness in trust games

Subjects communicated prior to playing trust games; the richness of the communication media and the topics of conversation were manipulated. Communication richness failed to produce significant differences in first-mover investments. However, the topics of conversation made a significant difference: the amounts sent were considerably higher in the unrestricted communication conditions than in the restricted communication and no-communication conditions. Most importantly, we find that first-movers’ expectations of second-movers’ reciprocation are influenced by communication and strongly predict their levels of investment.     

Aesthetics and Affect: Engaging Energy Communities

ABSTRACT

Engaging publics in participatory events has become a central means to introducing lay people's voices into processes of technoscientific innovation and governance. However, little attention has been paid to the role of aesthetics, especially in terms of opening up potential ways of critically and creatively engaging with technoscientific matters of concern. The terms semblamatic and matters of potentially are proposed as addressing this dimension of aesthetics. Drawing on practice-based design research, a probe workshop with members of energy communities was implemented. Three probe exercises served to open up potential re-articulations of such core themes as energy, communities and futures. Our goals were to examine the whether such probes enabled semblamatic responses and the emergence of matters of potentiality. Findings were mixed. The continued retention of standard meanings of these core themes suggested that such events can be anaesthetic, blunting access to the semblamatic aspects of engagement. Conversely, there was some opening up in which the core themes were creatively re-articulated. The present perspective, with its three novel terms - semblamatic, matters of potentiality, and anaesthetic - might prove useful in alerting scholars to the complex role of aesthetics in the methodological and analytic practices entailed in engagement with publics.     

Influence of properties of layered silicate minerals on adsorbed DNA surface affinity,self-assembly and nanopatterning

We report on the specific interaction between DNA and some mica-family minerals and other layered silicate structures. The interaction depends on mineral surface's crystallography, chemistry and potential. These properties are responsible for a remarkable variety of adsorption mechanisms and can be used to modulate surface self-assembly and nanopatterning of DNA. The controlled deposition of DNA onto non-conductive mineral regions with atomically flat boundaries has very attractive applications in nano-biotechnology (for example, microelectronics, microarrays and sensors). In addition, the extreme affinity discovered for some mineral surfaces, together with their ability to organize the DNA molecules, could be an indication of their catalytic potential. It may also have had relevance in the prebiotic environment, with important implications for the earth and life sciences.     

Social Networking Sites: Mediating the Self and its Communities

What do social networking sites reveal about the relation between the self and the community? We conceptualise social networking sites as technologies of the self and the community enabling individuals to self‐present and also objectifying the community's evaluation of individuals (through ‘structures of recognition’ such as page views, friends and lovehearts). We analyse the way in which 37 Scottish adolescents used the social networking site Bebo in nonprescribed and creative ways. First, they challenged the single authorship of profiles by co‐creating multi‐authored profiles. Second, they used creative language to obscure meaning from the preying eyes of parents, teachers and potential employers. We conclude by discussing the simplistic assumptions that Bebo makes about the relation between the self and the community. In contrast, newer social networking sites such as Facebook and Google+ are increasingly enabling people to present different facets of themselves to different communities. How people use social networking sites, and how these sites are developing to attract more users, reveals how the multiplicity of human identity is related to the multiple communities that people participate in. Copyright © 2013 John Wiley & Sons, Ltd.     

Derivation and Implications of MMPI Cluster Groups in Clinically Depressed Inpatient Females

The purpose of this study was to subclassify clinically depressed patients based on a cluster-analytic examination of the MMPI. Subjects were 79 female inpatients with major depression. A cluster analysis of the MMPI validity and clinical scales resulted in three clusters labeled psychotic (287 MMPI profile), hostile (24 MMPI profile), and histrionic (32 MMPI profile) depression. The psychotic group exhibited the greatest depression as measured by the Beck Depression Inventory (BDI). The psychotic and hostile groups, however, did not differ on other associated aspects of depression, such as negative cognitions, nonassertiveness, or personality style. The hostile group reported the fewest physical difficulties and the most excessive alcohol use. The groups, however, did not differ on other aspects of depression history or presentation such as family history of depression or previous hospitalizations. A repeated measures ANOVA for the three cluster groups on the BDI at admission, discharge, and 6 months after discharge indicated that all groups showed improvement at discharge but that only the hostile depressive group continued to show improvement at the 6-month follow-up.     

applying social learning theory to police misconduct

Although numerous studies have attempted to understand the causes of various forms of police misconduct, there is still no clear theoretical explanation of police misbehavior. Akers’ social learning theory posits that peer associations, attitudes, reinforcement, and modeling are predictors of delinquency and crime in general. With this article, we seek to determine if the theory can account for police deviance. Data from a random sample of Philadelphia police officers are used to examine how officer attitudes and perceptions of peer behavior are related to citizen complaints of police misconduct. Findings suggest that social learning theory provides a useful explanation of police misconduct.     

Transitioning Between Systems of Care: Missed Opportunities for Engaging Adults with Serious Mental Illness and Criminal Justice Involvement

Individuals with serious mental illness are overrepresented in the criminal justice system and face difficulties accessing mental health services both during incarceration and upon re‐entry into the community. This study examines how such individuals describe their experiences receiving care both during and after their time in custody and explores the perspectives of mental health service providers who treat this population upon re‐entry. Semi‐structured interviews were conducted with 43 individuals identified as having a history of serious mental illness and criminal justice involvement, as well as with 25 providers who have worked with this population. Clients noted the stress of transitioning to criminal justice settings, the uneven availability of services within jail and prison, and the significant challenges faced upon re‐entry. Providers reported barriers to working with this population, including minimal coordination with the criminal justice system and challenging behaviors and attitudes on the part of both clients and providers. Findings identify potential target areas for improved care coordination as well as for additional provider education regarding the unique needs of this population. Copyright © 2013 John Wiley & Sons, Ltd.