FINEX: a Probabilistic Expert System for forensic identification

A series of recent papers have shown how to formulate complex problems of forensic DNA identification inference, such as occur in disputed paternity or criminal identification cases, in terms of Probabilistic Expert Systems (PESs). However, at the present time, general purpose PES software is not particularly well suited to the repetitive tasks of: specifying an appropriate set of marker networks for a specific problem; for editing the many local conditional probability tables; and combining evidence from several genetic markers to evaluate likelihoods. Here, I describe a user-friendly prototype software tool called FINEX developed both to automate such tasks and also to evaluate likelihoods of interest. Ease of use is achieved by a graphical specification language that enables a user to quickly specify a range of forensic DNA problems. I describe the algorithms by which FINEX converts the user input in the graphical specification language and data on observed markers to the Bayesian networks used in PES.     

Prothrombin G20210A mutation and sudden death

The authors present a case of sudden death in a previously healthy 36-year-old male. At autopsy there were bilateral pulmonary thromboemboli and right ventricular dilatation. Histologic findings in the lungs included recanalized, old thrombi and evidence of pulmonary hypertension. Genetic analysis for hereditary risk factors was heterozygous positive for the prothrombin G20210A mutation. Implications of this finding, its history and the diagnostic technique shall be discussed. The authors recommend that all cases of deep venous thromboses and pulmonary thromboemboli lacking known risk factors be evaluated for newly described genetic variations associated with an increased risk for venous thrombosis.     

Religiosity and stress for police officers

Much of the research which has been conducted to date regarding stress and police officers has focused on identifying the presence of stress, associating stress with specific stressors, and comparing levels of stress between police officers and members of other professions. This project focused on the influence of one potential mediator of stress—religious activity. Data were collected from a population of law enforcement officers from a medium sized city and from a comparison group of firefighters from the same city. The data indicate that religiosity has two factors (1) traditional beliefs and activities and (2) religious satisfaction and perceived influence of religion on subject’s everyday lives. The second factor was found to be negatively related to stress for police officers. As religious satisfaction and perceived influence increase, stress increases.     

Intra-company technology transfer in a multinational industrial firm

Little literature has been developed to describe the process of transferring a corporation's technology between international units of that company for ultimate transfer to their external customers (Kimberly 1981 and Leonard-Barton and Sinha 1993). This paper addresses the issues at Air Products and Chemicals, Inc. involved in the transfer of applications technology. Technology is transferred from the unit of the corporation which develops the technology to international affiliates and subsidiaries. The ultimate goal is the support of product sales to the external industrial customer. A strategy for this type of organization is described which is supported by references to theoretical constructs in the literature and empirical observations from the organization itself.     

Missing Data Problems in Criminological Research: Two Case Studies

This paper considers the problem of missing data in two circumstances commonly confronted by criminologists. In the first circumstance, there is missing data due to subject attrition—some cases drop out of a study. In this context, analysts are frequently interested in examining the association between an independent variable measured at time t(x _t ) and an outcome variable that is measured at time t + 1(y _t + 1); the problem is that the outcome variable is only observed for those cases which do not drop out of the study. In the second circumstance there is missing data on an independent variable of interest for typical reasons (i.e., the respondent did not wish to answer a question or could not be located). In this case, researchers are interested in estimating the association between the independent variable with missing data and an outcome variable that is fully observed. Criminologists often handle these two missing data problems by conducting analyses on the subsample of observations with complete data. In this paper, we explore this problem with two case studies and we then illustrate the use of methods that directly address the uncertainty produced by missing data.     

Entrapped on the Web? Applying the Entrapment Defense to Cases Involving Online Sting Operations

Many law enforcement agencies are currently responding to the problem of online crime by establishing proactive investigative units that track criminals on the Internet. Not only do these specialized teams face problems in the area of emerging technology, they are also faced with handling emerging legal issues. The current research examined the issue of the entrapment defense, and how previously established physical realm doctrine could be applied to the investigation of online crimes such as child pornography. Relying on previous case law it would appear that entrapment claims related to online sting operations involve consideration of: a) did the law enforcement officer continuously contact the suspect with the intention of trying to convince the individual to engage in a particular type of behavior, b) how long was the relationship between the undercover officer and the suspect, and c) how much, if any, reluctance to commit the criminal act did the suspect provide evidence of?     

Deregistration issues in the US for foreign private issuers

The first 150 words of the full text of this article appear below. Key points

• While the passage of Sarbanes–Oxley in the USwas just one of the many causes for the lack of competitivenessof the US capital markets recently, it served to focus the attentionof foreign private issuers in the US on the difficulty and sometimesimpossibility of exiting the US capital markets.
• Unlike manyother jurisdictions, the process of deregistering in the USis distinct from process of delisting. The current rules forderegistration of foreign private issuers focus on the numberof US shareholders, regardless of how or where those shareholderspurchased their shares. In addition, foreign private issuers,were subject to complicated rules for counting US shareholders,and deregistration often would only suspend (not terminate)their reporting obligations.
• As a result of pressure from foreignprivate issuers, the SEC proposed new rules at the end of 2005to liberalize the existing deregistration regime for foreignprivate issuers. . . . [Full Text of this Article]