Generating a Corpus of Mobile Forensic Images for Masquerading user Experimentation

The Periodic Mobile Forensics (PMF) system investigates user behavior on mobile devices. It applies forensic techniques to an enterprise mobile infrastructure, utilizing an on‐device agent named TractorBeam. The agent collects changed storage locations for later acquisition, reconstruction, and analysis. TractorBeam provides its data to an enterprise infrastructure that consists of a cloud‐based queuing service, relational database, and analytical framework for running forensic processes. During a 3‐month experiment with Purdue University, TractorBeam was utilized in a simulated operational setting across 34 users to evaluate techniques to identify masquerading users (i.e., users other than the intended device user). The research team surmises that all masqueraders are undesirable to an enterprise, even when a masquerader lacks malicious intent. The PMF system reconstructed 821 forensic images, extracted one million audit events, and accurately detected masqueraders. Evaluation revealed that developed methods reduced storage requirements 50‐fold. This paper describes the PMF architecture, performance of TractorBeam throughout the protocol, and results of the masquerading user analysis.     

Acknowledging the Other Side in Negotiation

In a negotiation study, we investigated the efficacy of acknowledging an opponent's role in securing a concession made to that opponent. The study featured a face-to-face, one-shot bargaining session between a student favoring marijuana legalization and a confederate playing the role of a legalization opponent. When the confederate acknowledged the student's putative influence in producing a concession by the confederate, the student perceived the magnitude of the concession to be greater and was more likely to accept it. The student negotiators also reported that they liked the other party more following acknowledgement, and our mediational analysis suggested that enhanced interpersonal sentiments played a role in facilitating agreement. In this article, in addition to documenting these findings, we also discuss their implications, both for theoretical analyses of conflict and negotiation and for the practical problem of settling disputes.     

Character Strengths Among Youth

Four hundred and fiftynine students from 20 different high school classrooms in Michigan participated in focus group discussions about the character strengths included in the Values in Action Classification. Students were interested in the subject of good character and able to discuss with candor and sophistication instances of each strength. They were especially drawn to the positive traits of leadership, practical intelligence, wisdom, social intelligence, love of learning, spirituality, and the capacity to love and be loved. Students believed that strengths were largely acquired rather than innate and that these strengths developed through ongoing life experience as opposed to formal instruction. They cited an almost complete lack of contemporary role models exemplifying different strengths of character. Implications of these findings for the quantitative assessment of positive traits were discussed, as were implications for designing character education programs for adolescents. We suggest that peers can be an especially important force in encouraging the development and display of good character among youth.     

Beneath the surface: the masculine self and body in Sheridan Le Fanu’s ‘Green Tea’

This article examines the relationship between the masculine self and male body in Sheridan Le Fanu’s short story ‘Green Tea’ (1872), using a masculinity studies lens to analyze Mr Jennings’ destabilized masculinity within the parameters of Victorian male gender norms. I highlight the interwoven relationship between the masculine self and the body through looking at the physical depiction of Jennings, arguing that Jennings’ masculinity, his masculine self, is imprisoned as a reflection of the physical body; a relationship echoing Victorian gender norms regarding masculinity and the body. In the story, a demon follows and watches Jennings, appearing when Jennings is engaged in activity. Focusing on the relationship between the demon’s manifestation and Jennings’ activity, I show that the demon’s presence results from Jennings’ nonconformity to traditional notions of the masculine self. Le Fanu’s emphasis on the demon’s gaze serves to criticize Jennings’ masculinity as Jennings becomes submissive to the demon’s presence; as a result, this submission is mirrored in Jennings’ deteriorating physical body and health. By positing the masculine self within the body, the story acts to highlight Victorian society’s rigid male gender norms and the penalization of bodies that undermine those ideals.     

Immunocognitive Model of Depression Secondary to Anxiety in Adolescents

There is evidence that anxiety precedes the onset of depression and that rumination contributes to this risk pathway in adolescence. This study examined inflammatory biomarkers as mediators in a risk model of depressive symptoms secondary to anxiety symptoms among adolescents who ruminate. A sample of 140 adolescents (52% female, 54% African American, 40% Caucasian, 6% biracial, mean age at T1?=?16.5 years, SD?=?1.2 years) provided blood samples on two visits (T1 and T2; mean time between T1 and T2?=?13.5 months, SD?=?5.9 months). Self-report anxiety, depression, and rumination measures were given at T1 and the depression measure was given again at a third visit (T3, mean months since T1?=?26.0 months, SD?=?9.0 months). Higher anxiety predicted more interleukin-6, but not more C-reactive protein, for adolescents with high levels of rumination. Moderated mediation analyses (N for analysis after removing cases with missing data and outliers?=?86) indicated that interleukin-6, but not C-reactive protein, at T2 mediated the relationship between anxiety symptoms at T1 and depressive symptoms at T3, conditional on rumination. Anxiety and rumination interacted such that, as rumination increased, anxiety predicted greater inflammation and depressive symptoms. These results demonstrate that established cognitive vulnerabilities for the development of depressive symptoms secondary to anxiety symptoms in adolescence might indirectly operate though biological mechanisms such as inflammation. In addition to highlighting risk factors and potential treatment targets for depression, this study suggests a potential biological mechanism underlying the effects of psychotherapies that reduce rumination on negative affect (e.g., cognitive behavioral therapy).     

THE INTERNAL AND EXTERNAL VALIDITY OF THE REGRESSION DISCONTINUITY DESIGN: A META‐ANALYSIS OF 15 WITHIN‐STUDY COMPARISONS

Theory predicts that regression discontinuity (RD) provides valid causal inference at the cutoff score that determines treatment assignment. One purpose of this paper is to test RD's internal validity across 15 studies. Each of them assesses the correspondence between causal estimates from an RD study and a randomized control trial (RCT) when the estimates are made at the same cutoff point where they should not differ asymptotically. However, statistical error, imperfect design implementation, and a plethora of different possible analysis options, mean that they might nonetheless differ. We test whether they do, assuming that the bias potential is greater with RDs than RCTs. A second purpose of this paper is to investigate the external validity of RD by exploring how the size of the bias estimates varies across the 15 studies, for they differ in their settings, interventions, analyses, and implementation details. Both Bayesian and frequentist meta‐analysis methods show that the RD bias is below 0.01 standard deviations on average, indicating RD's high internal validity. When the study‐specific estimates are shrunken to capitalize on the information the other studies provide, all the RD causal estimates fall within 0.07 standard deviations of their RCT counterparts, now indicating high external validity. With unshrunken estimates, the mean RD bias is still essentially zero, but the distribution of RD bias estimates is less tight, especially with smaller samples and when parametric RD analyses are used.     

Masculinities and emotional expression in UK servicemen: ‘Big boys don’t cry’?

Dominant discourses of military servicemen position them as more prone to psychological damage than the general population, but as reluctant to seek psychological assistance, because of the military culture of ‘toughness’, a military masculinity, that values stoicism, emotional control and invulnerability and implicitly excludes ‘feminine’ characteristics like emotionality. This is seen as a barrier to military personnel seeking help, by implicitly discouraging emotional disclosure and expression. This article presents an analysis of semi-structured interviews with six male military and ex-military personnel, focused on their experience and understandings of emotion, emotional expression and ‘mental health’ in the military. The dominant construction of military masculinity certainly renders some forms of emotion inexpressible within certain contexts. However, we argue that the construct is more complex than a simple exclusion of the ‘feminine’ and the ‘emotional’. We explore how the highly masculine notions of military solidarity and ‘brotherhood’ create a ‘safe’ masculine space within which men could share their emotional experiences, but also highlight how this space for emotional expression is relatively constrained. We argue that these notions of solidarity and brotherhood open a space for emotional connection and expression that must be respected and worked with creatively, in therapeutic and other interventions.     

Resources, Group Conflict and Symbols: Explaining Anti-Immigration Hostility in Britain

This article analyses the causes of variation in attitudes to immigration policy in the UK. The key theoretical approaches emphasised are: the role of self-interest; group conflict over resources; and group conflict over important symbols of Britishness. The connection between perceptions of immigration and crime is also investigated. Based on the 2003 British Social Attitudes Survey, the findings indicate that self-interest has very little bearing on opposition to immigration and that British citizens instead appear to be most concerned with threats to ingroup resources posed by immigration, threats to the shared customs and traditions of British society (particularly those posed by Muslims) and – to a lesser extent – the potential for increased crime that may result from immigration.