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111.
Identification of Eight Synthetic Cannabinoids,Including 5F‐AKB48 in Seized Herbal Products Using DART‐TOF‐MS and LC‐QTOF‐MS as Nontargeted Screening Methods
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Katherine N. Moore M.S. Demetra Garvin Pharm.D. Brian F. Thomas Ph.D. Megan Grabenauer Ph.D. 《Journal of forensic sciences》2017,62(5):1151-1158
Synthetic cannabinoids are sprayed onto plant material and smoked for their marijuana‐like effects. Clandestine manufacturers modify synthetic cannabinoid structures by creating closely related analogs. Forensic laboratories are tasked with detection of these analog compounds, but targeted analytical methods are often thwarted by the structural modifications. Here, direct analysis in real time coupled to accurate mass time‐of‐flight mass spectrometry (DART‐TOF‐MS) in combination with liquid chromatography quadruple time‐of‐flight mass spectrometry (LC‐QTOF‐MS) are presented as a screening and nontargeted confirmation method, respectively. Methanol extracts of herbal material were run using both methods. Spectral data from four different herbal products were evaluated by comparing fragmentation pattern, accurate mass and retention time to available reference standards. JWH‐018, JWH‐019, AM2201, JWH‐122, 5F‐AKB48, AKB48‐N‐(4‐pentenyl) analog, UR144, and XLR11 were identified in the products. Results demonstrate that DART‐TOF‐MS affords a useful approach for rapid screening of herbal products for the presence and identification of synthetic cannabinoids. 相似文献
112.
Shannon Self-Brown Melissa C. Osborne Betty S. Lai Natasha De Veauuse Brown Theresa L. Glasheen Melissa C. Adams 《Journal of family violence》2017,32(8):751-766
Few studies have explored the direct impact of behavioral parent training programs on child maltreatment behaviors among marginalized, at-risk fathers. This feasibility study examined SafeCare® Dad to Kids (Dad2K), an augmented version of the evidence-based child maltreatment prevention program SafeCare, to determine the acceptability and initial efficacy of the program for improving father parenting skills and reducing maltreatment risk. Ninety-nine fathers were enrolled in the study and randomized to the SafeCare Dad2K Intervention (n?=?51) or comparison (n?=?48). Intervention fathers participated in 6 home visiting sessions and comparison fathers received parenting materials via mail. All fathers participating in the study completed a baseline and 8-week assessment (post-intervention) of maltreatment behaviors. In addition, intervention fathers completed feasibility and parenting skill measures. A significant main effect emerged indicating decreases for both groups in psychologically aggressive behaviors. No significant group by time findings emerged for child maltreatment behaviors. Father intervention completers endorsed high satisfaction ratings for the program and demonstrated significant improvements in targeted father-child interaction skills. Based on the high rates of acceptability and initial improvement in positive parenting skills, findings demonstrate the feasibility for involving at-risk fathers in behavioral parent training programs targeting child maltreatment prevention. 相似文献
113.
114.
Melissa Y. Delgado Kimberly A. Updegraff Mark W. Roosa Adriana J. Umaña-Taylor 《Journal of youth and adolescence》2011,40(2):125-139
Drawing on García Coll et al.’s integrative framework and the risk and resilience model, this study examined the relationships
between adolescents’ perceived discrimination and psychosocial adjustment and the moderating roles of adolescents’, mothers’,
and fathers’ cultural orientations and values, and adolescent gender in a sample of 246 Mexican-origin families. Using multilevel
modeling with data from mothers, fathers, seventh graders (M
age = 12.8 years; SD = .57 year) and older siblings (M
age = 15.7 years; SD = 1.5 years), findings revealed that perceived discrimination was positively related to depression, risky
behaviors, and deviant peer affiliations. In addition, parents’ cultural orientations and values and adolescent gender moderated
the relationships between perceived discrimination and some indicators of adjustment. These findings suggest that parents’
cultural orientations and values can serve as protective and vulnerability factors in the associations between Mexican-origin
adolescents’ perceived discrimination and their psychosocial adjustment. 相似文献
115.
The sixth MDG aims 'to combat HIV/AIDS, TB, malaria and other diseases'. The residual category of 'other diseases' has become the focus of intense interest, partly because it has provided an opportunity to increase resources for the control of the mostly parasitic 'neglected tropical diseases' (NTDs). Intense lobbying has secured large amounts of funding from donors, as well as generous donations of medicines from the major drug companies. A massive programme is now underway to treat the parasites of the poor in Africa via integrated vertical interventions of mass drug administration in endemic areas. The approach has been hailed as remarkably effective, with claims that there is now a real prospect of complete control and, for some NTDs, even elimination. However, a closer look at evaluation and research data reveals that much less is known about what is being achieved than is suggested. Competition between implementing organisations is leading to potentially counterproductive exaggerations about treatment coverage. Detailed local-level research in Uganda and Tanzania shows that actual rates of drug take-up among target populations are often lower than is necessary to effectively control the diseases, and that methods of drug distribution may even lead to active resistance to treatment. If current trends are not corrected, declining rates of NTD infection will not be sustained. Much more rigorous and effective monitoring is essential. 相似文献
116.
Despite numerous instrumental achievements, canines are still considered the most effective field method for explosive detection. However, due to strict explosive regulations and safety requirements, it can be a challenge for agencies with "bomb dogs" to train using neat explosive materials. This establishes a need for non-explosive canine training aids with the same volatile component profiles as the explosives that they represent. In order to compare mimic materials to their explosive counterparts, a technique must be established that not only allows for identification of volatile compounds but also can monitor changes in the headspace profile over time with respect to time and temperature. The Automated Training Aid Simulation using SPME (or ATASS) was developed for that purpose. As described, ATASS was used to observe changes in the volatile profile of three explosives (Composition C-4, 2,4-dinitrotoluene (DNT), and triacetone triperoxide (TATP)) and respective prototype training materials (0.1% by mass C-4, 1% by mass 2,4-DNT, and 1% by mass TATP). Samples were prepared in vials and metal tins within a gallon (≈ 3785 mL) paint can to simulate common field techniques for canine training. Monitoring these materials in real time provides a better understanding of the major volatile components present and how the relative abundances of these components can change over time. The results presented indicate that ATASS successfully allows for a sufficient comparison between explosive and non-explosive training materials. 相似文献
117.
Elizabeth M. Hammond Melissa A. Berry Dario N. Rodriguez 《Legal and Criminological Psychology》2011,16(2):242-252
Purpose. The purpose of this study was to examine the influence of rape myth acceptance, belief in a just world, and sexual attitudes on attributions of responsibility in a date rape scenario. We predicted that people higher in rape myth acceptance and those who more strongly believed in a just world, as well as those who held more conservative sexual attitudes, would attribute greater blame to the accuser than to the accused. Methods. One hundred seventy‐two undergraduates from a medium‐sized, Catholic university in the USA read a hypothetical date rape scenario and completed the Rape Myth Acceptance Scale, the Just World Scale, the Sexual Attitudes Scale, and a Judgment Questionnaire constructed for the current study. Results. Rape myth acceptance mediated the relationship between gender and judgments of responsibility for the accused and the accuser. Men were more likely to endorse rape myths and, consequently, assign less responsibility to the accused and more responsibility to the accuser than women. Conclusions. Pre‐existing beliefs regarding the nature of rape and the circumstances surrounding it may bias attributions of responsibility in date rape cases. There may be utility in addressing whether jurors hold such beliefs prior to the start of a trial. 相似文献
118.
Melissa Paiva Garrett L. Berman Brian L. Cutler Judith Platania Ryan Weipert 《Legal and Criminological Psychology》2011,16(2):266-276
Guidelines for conducting police line‐ups typically recommend immediate assessment of eyewitness confidence following identification. This confidence level can presumably be used to estimate accuracy even in the presence of subsequently inflated confidence. In this experiment, we examined students' perceptions of immediate and inflated confidence and whether their reliance on confidence varies as a function of the explanations given by the eyewitness for her inflated confidence. Each of 126 university students viewed one of five versions of a videotaped officer–eyewitness interaction depicting an eyewitness identification and follow‐up interview in which the eyewitness gave a (1) high or (2) moderate level of confidence or inflated her confidence and gave a (3) confidence epiphany, (4) memory contamination, or (5) no explanation for the inflation. The memory contamination and confidence epiphany explanations led to lower ratings of identification accuracy as compared to the high‐confidence control condition, supporting the immediate confidence recommendation but in some ways contradicting previous research on this issue. The results suggest the need for further research to understand the conditions under which confidence inflation influences juror evaluations of eyewitness identification. 相似文献
119.
Amy Melissa McKay 《Public Choice》2011,147(1-2):123-138
Despite a good deal of interest in lobbyists?? tactics, virtually no research has been published examining the conditions under which interest groups lobby the bureaucracy rather than or in addition to the legislature. Using two comprehensive datasets, I show that lobbying increases in both branches when conflict is higher and when the lobbyist has professional or political connections to that venue. In addition, certain conditions cause lobbyists to specialize in one branch or a particular branch only, depending on the issue area being lobbied, the interest group type being represented, the lobbyist??s resources, and other factors. 相似文献
120.
Amanda Moore McBride Ernest Gonzales Nancy Morrow‐Howell Stacey McCrary 《Public administration review》2011,71(6):850-858
What is the role of stipends as an institutional facilitator in volunteer civic service? By examining the relationship of stipend receipt to volunteer diversity, time commitment, and perceived benefits from a longitudinal study of older adults serving in Experience Corps, this article assesses stipend status relative to volunteer sociodemographic characteristics, motivations, intensity and duration of time served, and volunteers’ self‐reported benefits. The findings underscore how stipends may promote participant diversity. In particular, stipended older adult volunteers serve for longer periods of time, but their motivations for serving do not differ. Stipended volunteers report higher perceived benefits than nonstipended volunteers. The results suggest that stipends may leverage wider inclusion, increase retention, and contribute to other benefits, but additional research is needed using more controlled and comparative designs. 相似文献