A Comparison of Coronary Artery Stenosis Estimates Made by Forensic Pathologists and Medical Students

Previous studies suggest cardiovascular pathologists are less accurate than noncardiovascular pathologists (e.g., clinical pathologists) in estimating the degree of coronary artery stenosis. To further investigate the effect of training on accurate estimation of coronary artery stenosis, we designed a study to compare the accuracy of estimates made by forensic pathologists versus medical students. Six forensic pathologists and twelve medical students each independently examined 24 images of coronary artery cross sections and gave an estimate of the degree of stenosis. When comparing all 24 images, the forensic pathologists had a median difference between the estimated percentage of stenosis and actual percentage of stenosis of −12.380 and the medical students had a median difference of −16.50 (p-value of 0.08542). In estimating the percentage of stenosis, training in forensic pathology does not guarantee significantly improved accuracy compared with medical students. Our study showed no consistent statistically significant difference between estimates given by forensic pathologists and by medical students.     

Development of a Novel Finger-Trigger Interface for Trigger Pull Measurement

Trigger pull is the force that needs to be exerted on the trigger to discharge a firearm. The measurement of trigger pull can assist in the evaluation of the safety, function, and manufacturing characteristics associated with a firearm during the forensic firearm examination process. Nonetheless, the accuracy and uncertainty of trigger pull measurements may be affected by the measuring device, test procedure, and environmental conditions. In this work, an innovative finger-trigger interface device was developed to facilitate accurate trigger pull measurements. The idea was to reduce the variation related to the position of the measurement device on the trigger in existing measuring methods and devices. Three force sensors based on different technologies were initially evaluated. While two of the three sensors failed to produce data, the miniature capacitive plate sensor exhibited high precision and a linear response over the range of typical trigger pulls. To examine the effects of the finger-trigger interface on trigger pull measurement, different sensor housing prototypes were designed in silico and 3D printed for the construction of three finger-trigger interface devices. The performance of each finger-trigger interface device was evaluated by measuring the trigger pulls of several selected firearms and comparing the data to a previously published study. Our preliminary results demonstrated the novel finger-trigger interface device offered a new way to measure trigger pull in situ with acceptable accuracy and precision.     

The Protective Role of Parental Media Monitoring Style from Early to Late Adolescence

The goal of the current study was to examine the protective role that maternal media monitoring might have for adolescents. This was done by considering whether styles of media monitoring either directly reduced media use, or whether they buffered the associations between aggressive media use and adolescents’ prosocial behavior, aggression, and delinquency. Participants were 681 adolescents from two cities in the United States (51% female; 73% white), and their mothers, who provided data at two different time points, 2 years apart (when adolescents were roughly ages 13 and 15). Mixture modeling results revealed that mothers used four different styles of media monitoring made up of combinations of active and restrictive monitoring as well as forms of co-use. Styles that included active monitoring and connective co-use (i.e., engaging in media with the intent to connect with children) were directly associated with less media use, and moderated links between adolescents’ media use and behavioral outcomes concurrently but not longitudinally. The discussion was focused on the strength of considering multiple strategies of media monitoring together, and how this approach can inform future research in the area of parental media monitoring.     

Bernard Crick: citizenship and democracy in the United Kingdom

Bernard Crick's contribution to citizenship studies can be regarded as part of the tradition so ably represented by T.H. Marshall. I want to argue in this brief article on Crick that on the one hand he is part of the ‘golden age’ of political philosophy that has flourished in the English-speaking world over the last two or three decades, but on the other his work also shows the limitations of that tradition, at least from the perspective of comparative and historical studies in political sociology. His work was unquestionably ‘local’ in its focus on the subject of Scottish independence and the viability of the British Isles under the governance of a multi-national state.     

Revisiting Adjusted ADA Scores for the U.S. Congress, 1947-2007

Philip Habel Department of Political Science, Southern Illinois University Carbondale, Mailcode 4501, Carbondale, IL 62901 This paper replicates and extends Groseclose, Levitt, and Snyder,"Comparing Interest Group Scores Across Time and Chambers: AdjustedADA Scores for the U.S. Congress," which appeared in the AmericanPolitical Science Review (1999/93:33–50). We replicatethe most recent unpublished extension by Dr. Groseclose andresearch assistants for years 1947–1999, and then we extendthe analysis to include years 2000 through 2007. We make availableinflation-adjusted ADA scores from 1947 through 2007, allowingscholars to incorporate the most recent interest group scoresinto their analyses. Author's Note: Authors are listed alphabetically. The authorswish to thank Tim Groseclose for making available both the nominalADA scores from 1947 to 1999 and the Matlab program files usedin this analysis. SA gratefully acknowledges the support ofthe Hoover Institution during her time there as the 2006–07W. Glenn Campbell and Rita Ricardo-Campbell National Fellowand the Robert Eckles Swain National Fellow. PH wishes to thankboth the Dirksen Congressional Center and the National ScienceFoundation, doctoral dissertation improvement division grant493469, for their generous support. He also wishes to acknowledgethe valuable research assistance of James Lewis, Joshua Mitchell,and Matt Bergbower. Special thanks to J. Tobin Grant, ScottMcClurg, and Wendy Tam Cho for their helpful feedback and assistance.All errors are the responsibility of the authors. Replicationmaterials and programs are available on the Political AnalysisWeb site.     

Understanding the Relationship Between Onset Age and Subsequent Offending During Adolescence

This article examines the well-documented relationship between early initiation or onset of criminal behavior and a heightened risk of involvement in offending. Previous research examining this question conducted by Nagin and Farrington (Criminology 30:235–260, 1992a; Criminology 30:501–523, 1992b) used data from the Cambridge Study in Delinquent Development and found that: (1) onset age was correlated with offending involvement; and (2) the correlation could be explained by stable individual differences in the propensity to offend rather than a causal effect of early onset age. In this study, similar analytic methods are applied to data from the Second Philadelphia Birth Cohort. This data set consists of all 13,160 males born in Philadelphia in 1958 who resided in the city continuously from ages 10 to 18, slightly more than half of whom were non-white. Information from each of the youths was collected from schools, juvenile justice agencies, other official sources and surveys. In a model that mimics previous analyses, we initially found that an early age of onset is associated with greater subsequent involvement in delinquent behavior. When unobserved criminal propensity was controlled, however, we found that a late rather than an early onset of delinquency was related to future offending. In finding a state dependent effect for age of onset, our findings are contrary to propensity theory in criminology. In finding that it is late rather early onset which puts youth at risk for future offending, our findings are contrary to developmental/life course theory. Our results are more compatible with traditional criminological theory that is friendly to state dependence processes, though they too have not to date articulated why a late onsetting of offending might be particularly criminogenic.