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351.
Toske SG Cooper SD Morello DR Hays PA Casale JF Casale E 《Journal of forensic sciences》2006,51(2):308-320
Laudanosine, reticuline, codamine, and laudanine are members of the tetrahydrobenzylisoquinoline family of natural products. These alkaloids are present in the opium poppy, Papaver somniferum, and are subsequently found as impurities in clandestinely processed morphine. Morphine is then synthesized to heroin using hot acetic anhydride. During the course of this study, it was determined that these four tetrahydrobenzylisoquinolines undergo degradation to a series of 18 neutral impurities when subjected to hot acetic anhydride. Based on the degradation pathway, these new impurities were categorized into two sets of impurities called the C1-acetates compounds and the stilbene compounds. Synthesis, isolation, and structural elucidation information is provided for the tetrahydrobenzylisoquinoline alkaloids, and the new neutral impurities have been studied. Several hundred authentic heroin samples were analyzed using an established heroin signature program method. This methodology features the detection of trace neutral impurities present in heroin samples. It was determined that all 18 new impurities were detected in various quantities in four different types of heroin samples. Analytical results featuring these new impurities are reported for South American-, Southwest Asian-, Mexican-, and Southeast Asian-type heroin samples. These new impurities, coupled with other established forensic markers, enhance the ability to classify illicit heroin samples. 相似文献
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Controversy exists in the literature and society regarding what motivates serial sexual killers to commit their crimes. Hypotheses range from the seeking of sexual gratification to the achievement of power and control to the expression of anger. The authors provide theoretical, empirical, evolutionary, and physiological support for the argument that serial sexual murderers above all commit their crimes in pursuit of sadistic pleasure. The seeking of power and control over victims is believed to serve the two secondary purposes of heightening sexual arousal and ensuring victim presence for the crime. Anger is not considered a key component of these offenders' motivation due to its inhibitory physiological effect on sexual functioning. On the contrary, criminal investigations into serial sexual killings consistently reveal erotically charged crimes, with sexual motivation expressed either overtly or symbolically. Although anger may be correlated with serial sexual homicide offenders, as it is with criminal offenders in general, it is not causative. The authors further believe serial sexual murderers should be considered sex offenders. A significant proportion of them appear to have paraphilic disorders within the spectrum of sexual sadism. "sexual sadism, homicidal type" is proposed as a diagnostic subtype of sexual sadism applicable to many of these offenders, and a suggested modification of DSM criteria is presented. 相似文献
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Liberalism, Unintended Orders and Evolutionism 总被引:1,自引:0,他引:1
There is something gravely amiss about a liberalism based upon evolutionism, as F. A. Hayek bases his endorsement of the free, open, or 'Great Society'. Such a society—one based upon individual liberty, autonomy, and free-market institutions—is not guaranteed by the evolutionary process, as Hayek's own indictment of twentieth-century totalitarianism in The Road to Serfdom amply demonstrated.
In the first section of this paper, I explore some of the pitfalls for a liberalism grounded on evolutionary foundations: a relucance to tamper with existing institutions which borders on traditionalism; a tension between individualism and holism, the latter born of an evolutionist's concern for the survival of the group; and a relativism derived from evolutionism which seems ill-suited to a liberalism which values freedom.
The last two sections of the paper examine some striking connections between Hayek's liberalism and that of William Graham Sumner and Herbert Spencer. While there are important differences between Hayek's and Sumner's positions, on the one hand, and Spencer's, on the other, all three suffer from a common problem: their liberalism sits uneasily upon evolutionary foundations. 相似文献
In the first section of this paper, I explore some of the pitfalls for a liberalism grounded on evolutionary foundations: a relucance to tamper with existing institutions which borders on traditionalism; a tension between individualism and holism, the latter born of an evolutionist's concern for the survival of the group; and a relativism derived from evolutionism which seems ill-suited to a liberalism which values freedom.
The last two sections of the paper examine some striking connections between Hayek's liberalism and that of William Graham Sumner and Herbert Spencer. While there are important differences between Hayek's and Sumner's positions, on the one hand, and Spencer's, on the other, all three suffer from a common problem: their liberalism sits uneasily upon evolutionary foundations. 相似文献
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