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121.
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. 相似文献
122.
Raychelle M. Burks M.F.S. Shari E. Pacquette B.S. Mike A. Guericke B.S. Mark V. Wilson Ph.D. David J. Symonsbergen M.S. Kerry A. Lucas Ph.D. Andrea E. Holmes Ph.D. 《Journal of forensic sciences》2010,55(3):723-727
Abstract: The design and preliminary characterization of a novel sensor for drugs of abuse, DETECHIP®, is described in this proof‐of‐concept note. Combining both colorimetric and fluorimetric assays, DETECHIP® is suitable for lab and field use. More than a conventional spot test which provides a single “yes or no” answer, DETECHIP® provides twenty responses for a more complete characterization of suspect material. This is accomplished by visually noting colorimetric and fluorescent changes of carefully selected dyes upon the addition of test analytes, including drugs of abuse, with respect to controls. Color and fluorescence changes are recorded numerically so that a 20 digit identification code can be constructed for comparison of test analytes and known compounds. DETECHIP® is applicable to a variety of drugs, both plant‐derived and synthetic, addressing the need to use several different spot tests simultaneously for a single sample. 相似文献
123.
Leana Allen Bouffard 《Journal of criminal justice》2010,38(5):870
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. 相似文献124.
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. 相似文献
125.
Mirjam Knockaert Mike Wright Bart Clarysse Andy Lockett 《The Journal of Technology Transfer》2010,35(6):567-584
Our research seeks to develop understanding of the factors explaining venture capital investment managers’ attitudes towards
investment in the unique context of academic spin-outs. We provide a novel integration of both VC fund characteristics and
investment managers’ human capital characteristics with a unique hand-collected dataset of 68 early stage VC investment managers
in Europe. Attitudes toward academic spin-out investing are positively affected by the presence of public sector capital and
by investment managers who are more intensively involved with the entrepreneur. Specific human capital in investment managers
who had worked in an academic environment is more likely associated with investment in academic spin-outs. In terms of general
human capital, financial experience is positively related while entrepreneurial experience is negatively associated with investment
attitude towards academic spin-outs. There may be a need to facilitate the attraction of people from industry and investment
banking into public VC funds in particular. 相似文献
126.
We use the NLSY97 dataset to examine the parenting‐delinquency relationship and how it is conditioned by parents’ gender, controlling for youths’ gender. Generally, neglectful and authoritarian parenting styles were associated with the highest levels of delinquency in youths. When the sample was split by parent gender, authoritarianism held up across both groups, but permissive and neglectful parenting was only significant for fathers. Independent of parenting style, boys have higher delinquency levels than girls. The strength and magnitude of this relationship is nearly identical in separate equations for mothers and fathers. Parental attachment was not a significant protective factor against delinquency for either mothers or fathers. 相似文献
127.
Wadid Lamine Sarfraz Mian Alain Fayolle Mike Wright Magnus Klofsten Henry Etzkowitz 《The Journal of Technology Transfer》2018,43(5):1121-1141
This article introduces various aspects of technology business incubators (TBIs), emphasizing their increasing role in the spatial context where they are used as platforms and drivers of regional entrepreneurial ecosystems. It outlines the key themes of the emerging role of TBIs in sustainable regional development: TBI biodiversity of ecosystems; accelerating startups in the entrepreneurial university; TBI mechanisms challenged by green technology to sustain regional development; and TBIs’ connecting role between entrepreneurship education, experiential knowledge, and regional development. It proposes an agenda for future research on the role of TBIs as bridging mechanisms and drivers of entrepreneurship and regional development. 相似文献
128.
129.
Sarah Allen Gershon 《政治交往》2013,30(2):160-183
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. 相似文献
130.
Shannon M. Carey Theresa Herrera Allen Tamara Perkins Mark S. Waller 《Juvenile & family court journal》2013,64(4):1-20
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. 相似文献