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51.
GC and GC/MS analysis was used to detect cocaine and cocaethylene in hair extracts of mice injected with 20 mg/kg cocaine hydrochloride or an equivalent dose of cocaethylene fumarate twice daily for 3 weeks. Some mice were fed liquid Lieber-DeCarli diets containing ethanol (26% of total calories) and injected twice daily with the same doses of cocaine or cocaethylene or combination of cocaine and morphine (5 mg/kg). The average concentrations of cocaine in different experimental groups were in the range of 0.9-2.4 ng/mg of hair and for cocaethylene, 2.4-2.8 ng/mg of hair. There were no significant differences in hair concentrations of cocaine among groups receiving cocaine treatment, nor were there significant difference in cocaethylene concentration in hair in the two groups administered cocaethylene. In hair extracts of mice treated with cocaine and ethanol, levels of cocaethylene were below the limit of detection. 相似文献
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The urbanization experiences of Kenya, Tanzania, Zambia, and Zimbabwe are examined, with emphasis on the effectiveness of policies designed to influence urbanization. The first part of the study describes the measures adopted; the second part attempts to evaluate their effectiveness as well as their impact on poverty and inequality. 相似文献
53.
Shakhawan K. Mawlood M.S. Majid Alrowaithi Ph.D. Nigel Watson Ph.D. 《Journal of forensic sciences》2015,60(3):686-689
This study compares two novel swabs (forensiX) with a standard cotton swab (EUROTUBE) for the collection of saliva stains on glass slide for STR analysis. ForensiX collection tubes are a standard cotton swab in an “active drying” tube, where swab sample is soon dried by its innovative tube surface of the wall. The other is forensiX Nylon Flocked Swab. The study is two phases: The first “phase” assesses swab types regarding to retrieve ability of saliva. The second “phase” compares the drying ability of each swab to assess how crime samples would fare when left in storage. The main result showed that “active drying” is effective to store swabbed sample. The forensiX swabs generally are effective for higher (twofold to fourfold) DNA yield compared to delta lab swab (around 750 pg and 250 pg from 0.5 μL of saliva), respectively. These findings demonstrate the importance of drying performance in the preservation of DNA and swab selection. 相似文献
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Penny L. Watson 《Democracy and Security》2017,13(2):127-143
Iran has expanded its trade relations with Latin America since 2005. Many argue that the reasons for such activities are for financial gain and to bypass the sanctions. This article argues that economic gain are miniscule and that the primary objectives of Iran are two-fold: first, to assist its nuclear program; and second, to develop deterrence against the U.S. possible military option against Iran. 相似文献
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Introducing Computed Tomography Standards for Age Estimation of Modern Australian Subadults Using Postnatal Ossification Timings of Select Cranial and Cervical Sites, 下载免费PDF全文
Nicolene Lottering B.For.Sc. B.App.Sc. Donna M. MacGregor B.Sc. M.Sc. Clair L. Alston B.Math. M.Sc. Ph.D. Debbie Watson B.App.Sc. Laura S. Gregory B.Sc. Ph.D. 《Journal of forensic sciences》2016,61(Z1):S39-S52
Contemporary, population‐specific ossification timings of the cranium are lacking in current literature due to challenges in obtaining large repositories of documented subadult material, forcing Australian practitioners to rely on North American, arguably antiquated reference standards for age estimation. This study assessed the temporal pattern of ossification of the cranium and provides recalibrated probabilistic information for age estimation of modern Australian children. Fusion status of the occipital and frontal bones, atlas, and axis was scored using a modified two‐ to four‐tier system from cranial/cervical DICOM datasets of 585 children aged birth to 10 years. Transition analysis was applied to elucidate maximum‐likelihood estimates between consecutive fusion stages, in conjunction with Bayesian statistics to calculate credible intervals for age estimation. Results demonstrate significant sex differences in skeletal maturation (p < 0.05) and earlier timings in comparison with major literary sources, underscoring the requisite of updated standards for age estimation of modern individuals. 相似文献
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Danielle Watson 《Police Practice and Research》2016,17(6):520-530
The ‘Partial State of Emergency’ implemented in Trinidad and Tobago in August 2011, as well as media broadcasts on the crime situation, has brought to the forefront the high degree of interface between police officers and civilians within the identified ‘hotspot communities’. The assumed realities of these individuals were communicated in such a manner which led to the stereotyping of citizens as marginalized victims and police officers as ‘disrespectful bullies’. The media broadcasts reflected the act of policing as unitary, as opposed to encompassing a wide range of roles for interaction with civilians. These broadcasts revealed a high degree of violent physical displays by police officers, which were perceived as irrational, and in some instances inhumane. Despite community policing initiatives, there seem to be continued instances of problematic relations between police officers and civilians from ‘hotspot communities’. The research examined the sanctioned responses of police officer governing interaction with civilians from one of these communities. It highlighted the extent to which these endorsed reactions are contextually portrayed in media footage. The study described the determinants governing police use of force as evidenced in the media with the aim of providing a direction for redress during interaction. 相似文献