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91.
Cybercrime has become a growing national and international concern because of its potential for widespread and devastating financial impact. Gauging the effect of cybercrimes is extremely difficult because of its multi-faceted nature and evolving definitions, especially in cross-culture analyses. Using data generated from cybercrime reports from two leading national newspapers during the past ten years, this study compares major cybercrimes and law enforcement in China and the United States. Similarities and differences between the two nations are highlighted and policy implications are presented based on these findings.  相似文献   
92.
Gunshot Residue (GSR) produced by the discharge of a firearm often provides very useful information in criminal investigations in cases involving the use of firearms. Scanning Electron Microscopy equipped with an Energy Dispersive X-ray Spectrometer (SEM-EDS) is typically used worldwide to visualize micrometric particles constituting GSR and to analyse their elemental composition. The 2017 ASTM Standard guide for gunshot residue analysis by scanning electron microscopy/energy dispersive X-ray spectroscopy specifies that “Particles classified as characteristic of GSR will have one of the following elemental compositions: Lead, antimony, barium; Lead, barium, calcium, silicon, tin”. For the first time, the presence of an additional element, such as Sn, plays a key role in ASTM particle classification. It is known that some ammunitions, used for pistols, revolvers and rifles, contain tin foil discs for sealing the primer mixture into the cup, resulting in GSR particles containing Sn. The authors faced some cases in which Sn was unexpectedly found in GSR particles from a 0.22 Long Rifle derringer and from some 12 gauge shotguns. No tin foil discs are used in rimfire ammunitions and there is no published evidence of tin foil discs in shotshell ammunitions. Following a “case by case” approach, experimental research has been carried out to explain how Sn can be present in GSR particles when the last discharged cartridge also does not contain any Sn either in components and in the explosive charges.Moreover, the use of Particle Induced X-ray Emission (PIXE) showed the capability to overcome overlap ambiguity of Sb and Sn peaks in the X-ray spectra, being a possible key issue in real shooting cases if Sn quantities are below the lower limit of SEM detection, especially when Sb is also present.  相似文献   
93.
Child neglect, the failure to adequately meet a youngster's care needs, is the most frequent form of child maltreatment reported to welfare authorities. However, there have been few empirical reports of treatment outcomes for adjudicated, child neglectful parents. In the current study, an initial assessment of three neglectful parents revealed substantial deficits in cognitive problem-solving skills related to child care judgment. Treatment, consisting of modeling, shaping, practice, and feedback was used to improve each parent's child care problem-solving skills in a multiple baseline design. Skill enhancement was also found for untrained (generalization) problem situations, and independent caseworker ratings of each family's functioning provided external validation of the intervention's clinical impact.  相似文献   
94.
Our laboratory has developed an automated real-time quantitative PCR assay for detecting human DNA. The assay utilizes an in-house, custom-designed TaqMan-MGB sequence-specific probe (CFS-HumRT) and the ABD 7900HT SDS platform. Developmental validation has followed TWGDAM (1) guidelines and demonstrates that the assay is primate specific, is highly sensitive, yields consistent results, and works with human DNA extracted from a variety of body fluid stains. When operating within the dynamic range of the system using high-quality DNA samples. the technique yields similar quantification results to our current QuantiBlot assay with the added benefit of time saving through automation. Furthermore, the QPCR assay identifies how much amplifiable DNA is in a sample and thus has the potential to predict PCR success in downstream applications such as STR analysis.  相似文献   
95.
96.
Journal of Youth and Adolescence - Most adolescents and young adults navigate seamlessly between offline and online social environments, and interactions in each environment brings with it...  相似文献   
97.
In most adversarial systems, jurors in criminal cases consider the binary verdict alternatives of "Guilty" and "Not guilty." However, in some circumstances and jurisdictions, a third verdict option is available: Not Proven. The Not Proven verdict essentially reflects the view that the defendant is indeed culpable, but that the prosecution has not proven its case beyond a reasonable doubt. Like a Not Guilty verdict, the Not Proven verdict results in an acquittal. The main aim of the two studies reported here was to determine how, and under what circumstances, jurors opt to use the Not Proven verdict across different case types and when the strength of the evidence varies. In both studies, jurors were more likely to choose a Not Proven verdict over a Not Guilty verdict when the alternative was available. When evidence against the defendant was only moderately strong and a Not Proven verdict option was available (Study 2), there was also a significant reduction in the conviction rate. Results also showed that understanding of the Not Proven verdict was poor, highlighting inadequacies in the nature of judicial instructions relating to this verdict.  相似文献   
98.

Although public attention to transgender (trans) politics has increased dramatically in recent years, the scholarly community still has a limited understanding of how trans and gender non-conforming (GNC) individuals participate in the political system. Trans/GNC individuals are faced with a dual reality. On one hand, they are part of a highly organized and activated group whose rights depend on political engagement; on the other hand, individuals often face barriers to political participation including a lack of proper identification and low socioeconomic status. In this paper, we explore the effects of these competing forces on trans/GNC voter registration. We use the theory of oppositional consciousness to hypothesize that being part of a political and highly mobilized population helps trans/GNC individuals overcome barriers to participation. Using data on over 5000 self-identified trans/GNC individuals from the 2011 National Transgender Discrimination Survey we show that, though individuals are less likely to participate if they lack gender-conforming identification, on the whole trans/GNC individuals in this survey register at rates that are consistent with or higher than the general population. The evidence points to the importance of the trans political movement in activating and developing oppositional consciousness in its members. We explore the implications of these findings and what they mean for future research.

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100.
The initiation of romantic relationships is a normative developmental task among female adolescents. Friendships with other females may change as part of this task. Using structured interviews, this study collected data from 102 white females (ages 17 to 19) about their history of close peer relationships during high school. Trajectories of involvement (time spent) with close peers were examined using individual growth modeling. Females who increased time with romantic partners more rapidly also decreased time with friends more rapidly. Although most spent more time with partners than with friends at some time, the timing of this change and patterns of involvement with close peers varied. One-fourth of females spent more time with partners than with friends early in high school, but spent less time with friends than others did. Another one-half spent more time with partners than with friends later in high school, gradually increasing time with partners and reducing time with friends. Other females never spent more time with partners than with friends, and maintained high involvement with friends and little involvement with partners.  相似文献   
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