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Karim M. Abdel‐Hay Ph.D. Jack DeRuiter Ph.D. C. Randall Clark Ph.D. 《Journal of forensic sciences》2015,60(2):285-294
A number of N‐substituted piperazines have been described as drugs of abuse in recent years. This new drug category includes several series of aromatic ring substituted phenylpiperazines. The wide variety of available precursors makes regioisomerism a significant issue in these totally synthetic compounds. In this study, a complete series of regioisomeric dimethoxyphenylpiperazines were synthesized and evaluated using GC‐MS and FT‐IR. The EI mass spectra show fragments characteristic of both the dimethoxyphenyl and the piperazine portions of the molecules including the dimethoxyphenylaziridinium cation (m/z 180) and dimethoxyphenyl cation (m/z 137). The ion at m/z 56 for the C3H6N+ fragment is characteristic of the piperazine ring and was observed in all the spectra. The perfluoroacyl derivatives were resolved by GC, and their mass spectra showed some differences in relative abundance of ions. FTIR provides direct confirmatory data for differentiation between the regioisomeric dimethoxyphenylpiperazines, and GC separation was accomplished on an Rtx‐200 phase. 相似文献
374.
Jack M. Guttentag 《Housing Policy Debate》2013,23(1):143-156
Abstract Residential mortgage underwriting practice has serious shortcomings, including fixation on the present rather than the future. Accept‐reject decisions reflect some unknown interaction among implicit macro projections, implicit micro projections, and implicit policy toward assuming risk, and there is no way to relate the decision process to its components. As a result, there is no satisfactory way for a lender to incorporate a particular macro‐economic outlook into its underwriting standards. Further, different mortgage designs often carry markedly different degrees of risk. Most critically, accountability for underwriting decisions is obscured. This paper proposes a fundamentally new approach to underwriting that makes full use of new technology. Under this approach, macro and micro projections of the future and the lender's policy toward risk are explicitly specified. The accept‐reject decision is automatic and transparent. Each of the parties responsible for the components of underwriting decisions can be held accountable, with the underwriter responsible only for micro projections. 相似文献
375.
Jack Goodman 《Housing Policy Debate》2013,23(1):31-57
Abstract The residents of multifamily rental housing are different from both homeowners and single‐family home renters, and these differences have implications for the housing market and for public policy. This article describes apartment residents today, discusses recent changes in their number and characteristics, projects their future growth and composition, and highlights business and policy implications of future changes. For purposes of business and public policy, a segmentation of apartment residents into three submarkets is useful: the “affordable” market serving low‐ and moderate‐income households, some of which receive government housing assistance; the “lifestyle apartment market” serving higher‐income adult households; and the substantial “middle market.” The number of apartment renters is likely to grow moderately over time. The combination of multifamily structure type and rental tenure form offers unique opportunities not only for provision of affordable housing but also for revitalization of downtown areas and balanced “smart” growth in suburban areas. 相似文献
376.
Micro-finance provides financial services to poor women from developing countries where cultural and social constraints limit their opportunities for economic advancement. Using Forbes’s process of conducting systematic review, 12 quantitative studies from South Asia reporting on the impact of micro-finance on women’s mental health outcomes were analysed. Overall, studies revealed that the duration and depth of involvement in micro-finance activities would make a difference in women’s mental health and not just receiving loans; however, rigorous programme evaluation is needed. Collaborative actions by micro-finance and health care practitioners to recognise women’s mental health needs and to strengthen measures to optimise the beneficial effects of micro-finance must be considered. 相似文献
377.
The UK's second nationwide referendum, held in May 2011, offers rich opportunities for analysing the dynamics of a referendum campaign. The articles gathered together in this symposium address three themes. The first concerns the determinants and dynamics of public opinion during a referendum campaign, the second relates to the potential for interaction between the referendum and simultaneous elections, and the third focuses on coverage of the referendum in the media. Following a brief outline of the background to the referendum, this paper introduces the contribution that each article makes to these themes. 相似文献
378.
AbstractThe involvement of small island states (SISs) in a growing number of international organisations (IOs) has placed increased pressure on domestic bureaucracies and political systems. Rapid turnover among SIS leaders, combined with generational change and decreased local support, has amplified disadvantages. Growing complexity has therefore further exposed the long-standing vulnerabilities of SISs. They can play a creative role at the margins, and on certain issues in certain IOs, but in general asymmetries prevail. The lesson is that national sovereignty does not always equal control, and what might superficially appear to be equal access is constrained by the availability of technical expertise to the detriment of SISs. 相似文献
379.
A growing number of theorists are calling for a revival of research on political socialization based on the premise that children are active in their own civic development. We advance this argument a step further by proposing a model of family communication that reverses the roles of parents and children as conventionally understood in political socialization. Adolescent children are not merely receptive to political stimulation; they possess the power to transform patterns of family communication in ways that benefit themselves and their parents. We first challenge a series of interrelated assumptions about the nature and direction of influence in the family. We then document evidence of "trickle-up influence," in which child-initiated discussion--stimulated by a civics curriculum--prompts the parent to increase her civic competence via increased news media use, knowledge gain, and opinion formation. The parent's response reflects her desire to maintain a leadership role in the family, and more important from a theoretical perspective, it reveals the intrinsic forces of family adaptation that can make the home a powerful incubator of citizenship. Political growth occurs when the family system adjusts to reestablish equilibrium in response to exogenous factors or developmental needs that propel change. The ultimate purpose of this essay is to propose a functional model of family political communication. We apply theoretical perspectives from developmental literature to illustrate how political communication serves the family goals of autonomy and cohesion during various stages of the family life cycle. 相似文献
380.
Marianne Junger Jack Greene Ruth Schipper Floreyne Hesper Veronique Estourgie 《European Journal on Criminal Policy and Research》2013,19(2):117-133
Previous studies documented that crime is heavily concentrated in families. However, many studies relied on relatively small samples, often males and information on criminal involvement was self-reported. The present study investigates: (1) the prevalence of arrests in three generations; (2) the concentration of offenders and arrests within families; (3) the relationships between arrests among the relatives; (4) the relationship between arrests and family violence. A complete cohort of the families in which a child was born in a Dutch city was selected, and the arrests of all known family members (siblings, parents and grandparents) were investigated. Results showed that 7.2 % of the mothers and 18 % of the fathers had been arrested. The likelihood of parental arrests was related to the likelihood of grandparental arrests. There was clear evidence for assortative mating: when the mother was arrested, the likelihood that the father was arrested was increased with a factor five. Maternal arrests were also related to arrests of her parents-in-law. Arrests are heavily concentrated within families, 7.8 % of the families account for 52.3 % of the suspects. Arrests in family members constitute a major risk factor for poor developmental outcomes, such as criminal behavior. At the time of birth, it is possible to use information on arrests to select children who are at relatively high risk for the target of prevention efforts.Implications for prevention policies are discussed. 相似文献