The use of a 3-D laser scanner to document ephemeral evidence at crime scenes and postmortem examinations

Proper documentation of physical evidence at both crimes scenes and postmortem examination is crucial for downstream analysis, interpretation, and presentation in court. Ephemeral or transient evidence poses particular challenges to investigators, as its very nature renders it difficult or impossible to seize and maintain in its original physical state. The use of a hand-held three-dimensional (3-D) laser scanner is proposed to capture and document such evidence, both in the field and at autopsy. Advantages of the scanner over traditional means of documentation such as photography or casting include the ability to obtain measurements in all dimensions, the ability to reconstruct missing elements, and the ease with which generated images can be interpreted by the jury at trial. Potential scenarios warranting the use of the scanner are identified, and the limitations of its use are discussed.     

You have the right to understand: The deleterious effect of stress on suspects' ability to comprehend Miranda

Miranda v. Arizona (384 U.S. 436, 1966) required that suspects be explicitly warned of the right to avoid self-incrimination and the right to legal representation. This research was designed to examine whether stress, induced via an accusation of wrong-doing, undermined or enhanced suspects' ability to comprehend their Miranda rights. Participants were randomly assigned to either be accused (n = 15) or not accused (n = 15) of having cheated on an experimental task in a two-cell between-subjects experimental design. Results supported the hypothesis that stress undermines suspects' ability to comprehend their Miranda rights. Participants who were accused of cheating exhibited significantly lower levels of Miranda comprehension than participants who were not accused of cheating. The theoretical processes responsible for these effects and the implications of the findings for police interrogation are discussed. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

A simple method of nose tip shape validation for facial approximation

Despite numerous papers relating to the prediction of nose projection for the purposes of facial approximation, there is little guidance for nose tip shape that has been evaluated on a known data set. This study presents a novel, simple technique for validation of the reconstructed nose tip shape based on methods used in actual approximation practice. The data set was comprised of 25 full-head computed tomography (CT) patient scans. In 22 of the 25 patients across all age and sex groups, when the head is tilted so that soft tissue pronasale is superimposed on hard tissue rhinion, the curvature of the nose tip was found to mimic the curvature of the superior portion of the nasal aperture. This occurs when the head is tilted dorsally by approximately 60° (55.87±5.91). Individuals with snub noses presented a much wider tip curvature. The method was highly repeatable and was evaluated through inter- and intra-observer studies (error=3.15%).     

Do century-specific equations provide better estimates of stature? A test of the 19-20th century boundary for the stature estimation feature in Fordisc 3.0

A sample (n=28) from the Terry Collection was selected to include only White males who were born and had their entire growth and development period before 1900 to assess the effects year of birth have on accuracy and precision when estimating stature. Using the computer application Fordisc 3.0, stature was estimated using the humerus, radius, femur, and tibia equations developed from White males born in the 19th Century and the 20th Century. The 19th Century White male equations did not consistently provide the most precise and accurate estimates of stature. The 20th Century equations provide results that were as good as or slightly better than the 19th Century equations for the humerus, radius and femur. The 20th Century equations provided notably better results for the tibia. There is a great deal of evidence that there are clear positive secular changes in most of North America in the last 100-125 years, but the division commonly advocated in a forensic context at the year 1900 has no positive effect on accuracy or precision when estimating stature.     

Motivations and obstacles to networking in a university business incubator

Business incubators strive to develop robust business and social networks to bring value to their resident companies in the form of intellectual and material resources. Yet, information about what motivates resident companies to participate in networking activities and the obstacles they face in trying to build effective networks is limited. This study employs a communication perspective to examine the process of incubation in an award-winning university business incubator. Using a combination of network analysis and in-depth interviews, the case study reveals the nature of communication in the internal network of 18 resident companies and the incubator administrators. Despite being on the cutting edge of innovations in technology use, study findings reveal face-to-face interaction in the incubator is predominant. The physical proximity of resident companies at the incubator influences who they talk to the most, suggesting incubator site design is important in creating an entrepreneurial environment. The case study also indicates resident company motivations for networking include a strong desire for social support to help manage stress, security of membership in an in-group, and increased access to material or information resources. The primary obstacles residents face to participating in networking and building relationships with each other include extreme time limitations during the early start-up phase, lack of ongoing information about other residents, and lack of trust related to keeping information about innovations and funding sources secure. Implications of these findings and recommendations for incubator managers for building successful and sustainable communication networks conclude the article.     

A Critical Analysis of the MND Criteria for Feigned Cognitive Impairment: Implications for Forensic Practice and Research

Forensic neuropsychology continues to grapple with critical determinations of response styles, including the assessment of malingering. The development of the Malingered Neurocognitive Dysfunction (MND) model has been highly influential for both feigning research and neuropsychological practice. In striving to be a comprehensive model of malingering, MND proposes complex criteria for ascertaining possible, probable, and definite levels. In its critical review, this article suggests the possibility of an MND bias towards the over-classification of malingering. It also examines the limits of MND research to adequately test the MND model. The conceptual and empirical limitations of MND are discussed with reference to theory and neuropsychological practice.     

Truth and Fiction: A Study of the Gender Gap in the US National Legislature

In the United States, women are generally perceived to vote more liberally than men. Analysing voting patterns from 12 US Congresses (the 94th to 105th Congress) on a range of political issues, I conduct an estimation explaining voting behaviour by gender, differences in party identification and affiliation with different geographical regions in the United States. My results indicate that women do generally vote more liberally than men, but this difference can be attributed to differences in party identification and regional representation more than to gender differences.