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201.
202.
This paper describes the structural elucidation of a compound produced during the synthesis of 3,4-methylenedioxymethylamphetamine (MDMA) via the reductive amination of 3,4-methylenedioxyphenyl-2-propanone (3,4-MDP-2-P) with methylamine and sodium cyanoborohydride. The compound was isolated from MDMA by column chromatography, proton and carbon nuclear magnetic resonance spectroscopy, LC/mass spectrometry, and total synthesis were used to identify the compound as N-cyanomethyl-N-methyl-1-(3',4'-methylenedioxyphenyl)-2-propylamine. This compound has been identified as a potential synthetic route marker for the reductive amination of 3,4-MDP-2-P with methylamine and sodium cyanoborohydride and as such it should prove valuable to forensic scientists engaged in profiling illicit drugs. Profiling MDMA can provide useful information to law enforcement agencies relating to synthetic route, precursor chemicals and reagents employed and may be used for comparative analyses of different drug seizures. This paper also describes the structural elucidation of the analogous methylamphetamine synthetic route marker compound, N-cyanomethyl-N-methyl-1-phenyl-2-propylamine, produced during the reductive amination of phenyl-2-propanone using methylamine and sodium cyanoborohydride. 相似文献
203.
The main objectives of the European project "Collaborative Harmonization of Methods for Profiling of Amphetamine Type Stimulants" (CHAMP) funded by the sixth framework programme of the European Commission, included the harmonization of MDMA profiling methods and the creation of a common database in a drug intelligence perspective. In the preliminary stages of this project, the participating laboratories analysed the physical characteristics, the chemical composition and the organic impurities of MDMA tablets, using the previously harmonized methods. The aim of the present work was to apply statistical treatments to the recorded data in order to evaluate their potential in the fight against drug trafficking. Comparable working procedures were applied on the different types of data. The first part of this article deals with organic impurities data, while the second part focuses on the potential of the physical characteristics. Organic impurities data were recorded by a harmonized Gas Chromatography/Mass Spectrometry (GC/MS) method previously developed. Statistical analysis provided a selection of pertinent variables among the 46 organic impurities identified in the chromatograms. Correlation coefficients were used to yield separation between populations of samples coming from the same synthesis batch and samples coming from different batches. It was shown that correlation measurements based on Pearson and cosine functions applied to the data pre-treated by normalisation to the sum of peak responses followed by the square root provided an excellent discrimination between the two populations. The statistical methods applied to organic impurities profiles proved to be excellent techniques to differentiate samples from different batches and to highlight operational links between samples. 相似文献
204.
Fibromyalgia (FM) is a confusing and controversial diagnosis, characterized by widespread pain and tenderness at specific anatomical sites. The cause of this syndrome is unknown, and the course of the condition is difficult to predict. Without a known cause, predictable course, or effective treatment, it is not surprising that FM is a contentious diagnosis from a medical perspective, as well as a civil litigation and disability insurance industry perspective. The purpose of this study was to investigate judges' perceptions of credibility in litigated cases involving FM claims in the Canadian courts, and the relation between perceived credibility and awards granted. A systematic review was conducted of every trial-by-judge litigated FM claim in Canada (N=194 cases) up to 2003. The cases were examined in relation to credibility factors. The role and responsibility of the plaintiff was central in claims involving issues of misrepresentation, fraud, non-disclosure, failure to mitigate, and contributory negligence. The presence of these issues suggested a possible decrease or loss in the claim as a result of the plaintiff's conduct. In regards to the actions of defendants, the presence of investigative and surveillance information alone did not affect the awards granted. However, the credibility of that information had a large effect on the amount of award granted. Plaintiff credibility played a similar role, indicating that plaintiffs perceived as more credible were typically granted greater awards. An examination of medical expert credibility revealed that judges appear to perceive experts as more credible overall than plaintiffs, regardless of the expert's role in the case. 相似文献
205.
Mortgage servicing has garnered increased attention since the foreclosure crisis. As the interface between borrowers and investors, servicers make the decision to either grant a loan modification or to foreclose. This study examines servicer loan modification practices for a national sample of delinquent subprime loans, and assesses the extent to which those practices are associated with foreclosures. The research reveals significant differences across servicers in loan cure rates, which are related to servicers’ propensity to offer loan modifications and to the level of relief offered to borrowers. The observed differences across servicers and the implications of this heterogeneity for foreclosure prevention underscore the importance of additional data, research, and policies that can increase the uniformity and transparency of servicing practices. 相似文献
206.
Justice Issah Musah-Surugu Kwadwo Owusu Paul William Kojo Yankson Emmanuel Kofi Ayisi 《Development in Practice》2018,28(1):65-80
Through an interpretive research paradigm, we investigated the extent to which six local governments across three administrative regions of Ghana have complied with mandated climate change financing and budgeting guidelines. Five interesting findings emerged. First, there is enormous evidence of climate change budgeting compliance across all six local governments despite weak compliance incentives. Second, local governments that are most vulnerable to the impacts of climate change are more willing to comply and also allocate more resources for adaptation-related activities than those that are less vulnerable. Third, local governments that complied least are likely to take ad hoc adaptation actions which are often uncoordinated and poorly monitored. These local governments are least likely to attract auxiliary funds that could provide additional resources for adaptation financing. Lastly, the evidence of compliance is only quantitative, presented in various local governments’ fiscal documents, with no qualitative or other relevant explanatory factors on the extent of impact on adaptation. 相似文献
207.
Melissa A. Lippold Mark T. Greenberg Linda M. Collins 《Journal of youth and adolescence》2014,43(5):729-744
Parental knowledge is a key protective factor for youths’ risky behavior. Little is known about how longitudinal combinations of knowledge-related behaviors are associated with youths’ substance use. This longitudinal study uses Latent Transition Analysis to identify latent patterns of parental knowledge-related behaviors occurring in mother-youth dyads during middle school and to investigate how changes in knowledge-related patterns are associated with youths’ substance use in Grade 6 and the initiation of substance use from Grade 6 to 8. Using a sample of 536 rural dyads (53 % female, 84 % White), we assessed mother and youths’ reports of parental knowledge, active parental monitoring efforts, youth disclosure, and parent-youth communication to identify six latent patterns of knowledge-related behaviors: High Monitors, Low Monitors, Communication-Focused, Supervision-Focused, Maternal Over-Estimators, and Youth Over-Estimators. Fifty percent or more of dyads in the High Monitors, Communication-Focused and Youth Over-Estimators were in the same status in both 6th and 8th grade: 98 % of Low Monitors in Grade 6 were also in this status in Grade 8. The initiation of alcohol, smoking, and marijuana was associated significantly with transitions between patterns of knowledge-related behaviors. The initiation of alcohol and smoking were associated with increased odds of transitions into the Low Monitors from the Communication-Focused, Supervision-Focused, and Maternal Over-Estimators. However, the initiation of substance use was associated with decreased odds of transitions from the High Monitors to the Low Monitors and with increased odds of transitions from High Monitors to Supervision-Focused. The discussion focuses on the value of using a person-oriented dyadic approach with multiple reporters to study changes in knowledge-related behaviors over the middle school period. 相似文献
208.
209.
Managing for social equity performance has long been a goal without much guidance for public managers. We examine social equity performance in the context of indirect governance through the administration of grant programs and, more specifically, the matching of policy responses (grant funding) to social needs. Grant program managers must allocate funding to match needs while also ensuring accountability, but common administrative models that rely on competition can undermine social equity performance. We develop a unique framework to analyze the relative social equity performance of four models of grant administration in general. These models are defined by whether competitions or formulas are used to select grantees and to allocate funding. We test the implications of the framework in an analysis of funding distributions from the nonentitlement Community Development Block Grant program in four states. Our findings suggest that social equity in grant programs is better served when grantors do not rely solely on competitive grant contracting in the selection and distribution of grant funds, which is typical in grant administration. However, policy makers and managers can design institutional arrangements that utilize competition, but in a manner that does not create a bias against more socially equitable funding decisions. 相似文献
210.
Isaac Kofi Mensah 《国际公共行政管理杂志》2020,43(4):303-311
ABSTRACTThis study explored the impact of government capacity and e-government performance on the adoption of e-government services by integrating it into the Technology Acceptance Model (TAM). The results showed that both government capacity and government performance were significant determinants of the perceived usefulness of e-government services. Also, government capacity was revealed to positively predict e-government performance. In addition, perceived usefulness of e-government services was found to be a significant predictor of the intention to recommend the adoption of e-government services. The implications of these findings on the implementation of e-government are discussed. 相似文献