Comparison of motor oils using high-temperature gas chromatography-mass spectrometry

The analysis of motor oils has wide applications in the forensic science field from comparing lubricants transferred between an automobile and a victim or crime scene to differentiating the compositions of plastic explosives. In this study, 40 unused motor oils were analyzed and compared by high-temperature gas chromatography-mass spectrometry to determine the potential for oil individualization. Oil samples were also collected from the crankcase dipsticks of 30 cars. Twenty-six of these oils could be differentiated from each other based on visual comparisons of the unresolved envelope (baseline rise due to incomplete separation) and the resolved hydrocarbons in the raw total ion chromatograms (TICs) and smoothed TIC data. Four of these oils were analyzed as unknowns and were correctly related to the corresponding vehicle. The use of extracted ion profiles (EIPs) was explored as a means to further discriminate between the indistinct samples based on the polycyclic aromatic hydrocarbon (PAH) content. The research discussed in this paper demonstrated that differentiation of motor oils was possible by examining the TIC, smoothed TIC, and EIP data.     

Exploring the utility of entitlement in understanding sexual aggression

Purpose

Sexual aggression on college campuses has received a great deal of research attention. Little criminological theory, however, has systematically linked individual-level risk factors for sexual aggression with broader societal factors like patriarchy. DeKeseredy and Schwartz (1993) proposed that societal patriarchy is translated into individual attitudes of male sexual proprietariness and entitlement, which provide motivation and justifications for sexual violence.

Methods

This study explored the concept of entitlement through various measures and demonstrated the utility of the concept by linking it with other theoretically-relevant variables, including self-control, sexual partners, use of pornography, adversarial sexual beliefs, and rape myth adherence.

Results

Entitlement was significantly correlated with theoretically-relevant variables in the expected directions. Additionally, entitlement was able to distinguish sexually aggressive and nonaggressive men. Multivariate models provided support for the theoretical assertion that entitlement fosters rape-supportive attitudes and behaviors, which in turn was related to sexual aggression.

Conclusions

Entitlement is an important concept in understanding sexual aggression, and the causal relationships implied by theory should be explored further in future research. Implications and directions for future research and theory are discussed.     

Treatment of Concurrent Substance Dependence,Child Neglect and Domestic Violence: A Single Case Examination Involving Family Behavior Therapy

Although child neglect and substance abuse co-occur in greater than 60% of child protective service cases, intervention outcome studies are deplorably lacking. Therefore, a home-based Family Behavior Therapy is described in the treatment of a woman evidencing child neglect, substance dependence, domestic violence and other co-occurring problems. Treatment included contingency management, self control, stimulus control, communication and child management skills training exercises, and financial management components. Results indicated improvements in child abuse potential, home hazards, domestic violence, and drug use, which were substantiated by objective urinalysis testing, and tours of her home. Validity checks indicated the participant was being truthful in her responses to standardized questionnaires, and assessors were “blind” to study intent. Limitations (i.e., lack of experimental control and follow-up data collection) of this case example are discussed in light of these results.     

Press Secretaries,Journalists, and Editors: Shaping Local Congressional News Coverage

The news media plays a key role in American democracy, often serving as the primary means by which voters learn about their elected representatives. However, the news media varies in its coverage of representatives, presenting voters with more frequent and favorable information about some House members than others, which may in turn influence voters' decisions at the polls. Although many scholars have examined the determinants of congressional news coverage, few have focused on the role of the actors who perhaps exert the most direct effect on such coverage: congressional press secretaries, journalists, and editors. In this study, I explore the influence of these actors on the tone and frequency of local congressional news coverage. I rely on data from two sources: (a) a content analysis of newspaper coverage of 100 representatives during the month prior to the 2006 election and (b) in-depth interviews with 51 congressional press secretaries and 22 journalists. These sets of data illustrate the important roles of both newspaper staff and congressional press secretaries in shaping the coverage House members receive. I conclude by discussing the implications of the findings for U.S. representatives and their constituents.     

A Detailed Cost Evaluation of a Juvenile Drug Court that Follows the Juvenile Drug Court Model (16 Strategies)

Although juvenile drug courts (JDCs) have now been in operation for 17 years, there is still no definitive appraisal as to this model's cost effectiveness and in particular, no detailed cost analysis of a JDC program following the 16 strategies until this one. The cost data presented in this paper build on the process and outcome evaluations performed on the Clackamas County Juvenile Drug Court (CCJDC). The criminal justice costs incurred by participants in drug court are compared with the costs incurred by eligible non‐participants. CCJDC participants had far more positive outcomes than those who did not participate in the program. In the two years after drug court entry, CCJDC participants cost the taxpayers $961 less per participant than similar individuals who did not attend the drug court program.     

Response to Cilluffo and Gergely

Research on the motives of those who engage in small group political violence typically takes a qualitative or quantitative form. I argue that researchers should seek to understand why people engage in small group political violence, and that the best way to achieve such understanding is to employ both. The advantages of this approach are discussed in this paper, as is the importance of recognizing that the activities of all actors in any given violent location, including state actors, should be accounted for in research.     

Health care reform content and process:propositions from the states

Health care reform and cost containment have become central campaign and policy issues in the United States. Although focus now centers on federal health care reform policy, state governments have been actively introducing health care reform legislation. Some of the health care reform initiatives on the state level have influenced deliberations on the federal level and President Clinton's health care reform initiatives will spur further state experimentation regardless of legislative success in Congress, In 1992 nearly all 50 states had either legislation introduced, or special task forces assigned that addressed health care reform issues. This exploratory research compares the content and process of health reform in four states that attempted major reform in 1992—Florida, Washington, Michigan, and Wisconsin—and draws propositions for state reform based on comparisons of content and process. The four states chosen represent geographic diversity and a balance between legislation seeking partial change and legislation calling for universal health care reform. The principal reform bills in each state are compared and assessed on the degree to which they address eight reform elements; high tech medicine, administration, tort reform, long-term care, regulation, insurance mandates, small business insurance, and insurance portability. These initiatives are also compared on a series of reform process variables that relate to the political process for adopting reform: degree of health sector support, type of political strategy used, reform champion, degree of cooperation among policy stakeholders, and timing of initiative. Based on these four cases the phased/partial approach seems to have a greater chance for legislative success than immediate universal reform. Florida's partial, consensus-building approach resulted in the only signed bill of the four states. Washington's bill, which also took a partial approach, passed the state senate before ultimate defeat in 1992 and eventual passage in 1993. Neither of the more ambitious universal health care reform packages introduced in Wisconsin or Michigan got out of committee. Although some of the plans were thorough, none adequately addressed the tradeoff between increasing access to care and containing costs. In addition, this study will demonstrate that universal health care legislation, does not necessarily equate to comprehensive health care reform. The propositions derived from this research have implications for future state health care reform efforts, as well as for federal health care reform policy in terms of the substantive content of reform proposals and the political process by which they are advanced.     

Examining the effects of paper type, pen type, writing pressure and angle of intersection on white and dark dominance in ESDA impressions of sequenced strokes--an application of the likelihood ratio

Questioned document casework can occasionally involve the sequencing of impressions. Although some conclusions can be drawn from looking at ESDA traces of intersections there is currently no way of assessing the strength of the observations made in any given case. Using a range of paper and pen types this work examines points of intersection and evaluates the results statistically in order judge the value of the results obtained.     

Social Orientation: Problem Behavior and Motivations Toward Interpersonal Problem Solving Among High Risk Adolescents

A model of problematic adolescent behavior that expands current theories of social skill deficits in delinquent behavior to consider both social skills and orientation toward the use of adaptive skills was examined in an ethnically and socioeconomically diverse sample of 113 male and female adolescents. Adolescents were selected on the basis of moderate to serious risk for difficulties in social adaptation in order to focus on the population of youth most likely to be targeted by prevention efforts. Structural equation modeling was used to examine cross-sectional data using multiple informants (adolescents, peers, and parents) and multiple methods (performance test and self-report). Adolescent social orientation, as reflected in perceived problem solving effectiveness, identification with adult prosocial values, and self-efficacy expectations, exhibited a direct association to delinquent behavior and an indirect association to drug involvement mediated by demonstrated success in using problem solving skills. Results suggest that the utility of social skill theories of adolescent problem behaviors for informing preventive and remedial interventions can be enhanced by expanding them to consider adolescents' orientation toward using the skills they may already possess.