Latency – Time for lawyers to get up to speed?

While latency issues have always existed in IT systems, it is only in recent years that latency has become a significant focal point for both IT suppliers and customers. This paper will provide an overview as to how latency arises in IT systems, why latency is becoming important across a variety of business sectors and then explores some of the prominent legal issues inherent in contracting for low-latency solutions.     

Utility of the Y-STR typing systems Y-PLEX 6 and Y-PLEX 5 in forensic casework and 11 Y-STR haplotype database for three major population groups in the United States

The Y-PLEX 6 and Y-PLEX 5 systems enable analysis for 11 Y-STR loci. We present here the utility of these systems in forensic casework. A total of 188 samples, including 127 evidence samples, were analyzed using either or both of the systems. The evidence sample types included fingernail scrapings, sperm or seminal fluid, epithelial cells, blood and other tissues. The Y-STR typing systems provided useful probative results in difficult cases. A reference database for Caucasian (n = 517), African American (n = 535), and Hispanic (n = 245) population groups within the United States was generated for estimating the haplotype frequency in forensic casework. Among the individuals profiled, 311 Caucasians, 412 African Americans, and 194 Hispanics provided unique profiles in their respective population datasets. This is the first report describing the haplotype database for the set of 11 Y-STR loci recommended by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Linkage analysis reveals that the frequencies from forensically important autosomal loci can be multiplied with the Y-STR haplotype frequency. The results from Y-PLEX systems have been accepted in courts in the United States.     

Acculturation, partner violence, and psychological distress in refugee women from Somalia

This study examined the relations among acculturation, domestic violence, and mental health in 62 married refugee women from Somalia. Refugees from Somalia constituted the largest group of refugees entering the United States in 2005, and little is known about the presence of domestic violence in this group. The results showed that women who reported greater ability to speak English also reported more experiences of partner psychological abuse and physical aggression. Experiences of more psychological abuse and physical aggressions also predicted more psychological distress. Implications for future research and psychological services are addressed.     

The Effect of Gang Perpetrated Crime on the Likelihood of Non-Lethal Victim Injury

Studies consistently find that gang members are involved in a disproportionately high rate of violence. The association between gangs and violence is largely based on the legal definition of violence, however. The current study moves beyond the legal definition of gang violence by examining the relationship between non-lethal gang involved incidents and the likelihood of victim injury, using pooled data (1992–2005) from the National Crime Victimization Survey. Overall, results reveal that gang members are not more likely than are non-gang members to injure their victims. When analyses are restricted to incidents involving injury, or incidents involving weapons, gang members are no more likely to more severely injure their victims than non-gang members. Strengths and limitations of the study are discussed.     

Forensic applications of infrared chemical imaging: multi-layered paint chips

This paper examines the potential of infrared chemical (hyperspectral) imaging as a technique for the forensic analysis of automotive paint chips in particular, and multicomponent (e.g., layered) samples in general. Improved sample preparation procedures for the infrared analysis of paint chips are detailed, with the recommendation that where mounting resins are chemically incompatible with the sample, it is better to mount and section the sample in a soft wax from which the sections can be removed and pressed into a KBr disk for transmission analysis. Infrared chemical images of multilayered paint chips have been successfully obtained, with the chief advantage over conventional infrared analysis being that thousands of infrared spectra are collected in a few minutes across the whole sample, at a spatial resolution of around 5 microm. As with conventional infrared spectroscopy, chemical species can be identified from their spectra, but the wealth of information available can be also extracted in a number of different ways that make multicomponent spectral (and hence chemical) comparisons between two samples easy to visualize and understand. In one approach, the infrared chemical images of two paint chips being compared side-by-side can be viewed as a "movie," in which each frame is an intensity map of the two samples at a given wavenumber (frequency) value. In another approach, the spectra (pixels) in the image files are classified into chemically similar groups, resulting in a "cluster" image that makes it possible to simultaneously compare all of the layers in two paint chips. These methods are applicable to other multicomponent samples, and also to other chemical imaging techniques.