Influence of Velocity on Variability in Gait Kinematics: Implications for Recognition in Forensic Science

Closed circuit television (CCTV) footage is often available from crime scenes and may be used to compare perpetrators with suspects. Usually, the footage comprises incomplete gait cycles at different velocities, making gait pattern identification from crimes difficult. This study investigated the concurrence of joint angles throughout a gait cycle at three different velocities (3.0, 4.5, 6.0 km/h). Six datasets at each velocity were collected from 16 men. A variability range VR throughout the gait cycle at each velocity for each joint angle for each person was calculated. The joint angles at each velocity were compared pairwise, and whenever this showed values within the VR of this velocity, the case was positive. By adding the positives throughout the gait cycle, phases with high and low concurrences were located; peak concurrence was observed at mid‐stance phase. Striving for the same velocity for the suspect and perpetrator is recommended.     

Election Campaigns,Issue Focus and Voting Intentions: Survey Experiments of Norwegian Voters

This article investigates whether and how changes in issue focus in election campaigns affect voting intention, even if no preference change takes place, and whether such effects vary systematically across different groups of voters. Evidence is reported from two survey experiments of Norwegian voters, where respondents were treated with information drawing their attention towards issues pertaining either to immigration or the environment. Although irrelevant for policy learning or persuasion, this information strongly increased the support of particular parties. More specifically, parties with ‘ownership’ of the issues involved gained votes. Certain types of voters were more likely to change voting intentions post‐treatment than others, but which types crucially depended on the issue area under focus. Nevertheless, the results indicate that the issue focus of campaigns is very important for vote choice. Hence, one should expect that, for instance, even ‘neutral’ political news coverage at or close to election day could affect voters in predictable ways. Furthermore, one should expect different parties to fight hard to steer the focus of campaigns towards issues where they have ownership.     

From Big Data to Knowledge: An Ontological Approach to Big Data Analytics

The introduction of Big Data sets in the healthcare domain has presented opportunities to engage in analytics of very large sets containing both structured and unstructured data. With advances in information technology (IT), these data sets have become available from diverse sources at greatly increased rates. The availability of Big Data sets has introduced complexities that we must address, not only in terms of semantics and analytics but also in terms of data management, storage, and distribution. Currently, the capabilities to ingest, analyze, and manage multipetabyte data sets have underscored the limitations of our analytics capabilities supported by relational database management systems. This essay argues that an ontology‐based approach to data analytics provides a practical framework to address the semantic challenges presented by Big Data sets. No ontological framework can address the operational and management requirements introduced by the availability of Big Data sets, however. There are also a number of IT architectural factors that must be considered in implementing such a framework.     

Using a Continuous Measure of Genderedness to Assess Sex Differences in the Attitudes of the Political Elite

Political Behavior - We investigated the attitudes of the 11,410 candidates in the Finnish 2017 municipal elections who had responded to a Voting Advice Application. Women candidates were, both in...