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排序方式: 共有128条查询结果,搜索用时 15 毫秒
51.
Marta Concheiro Ana de Castro
scar Quintela Angelines Cruz Manuel Lpez-Rivadulla 《Forensic Science International Supplement Series》2007,170(2-3):156
The aim of this study was to assess the effectiveness of two current on-site oral fluid (OF) drug detection devices (OraLab and Dräger), as part of the Spanish participation in the Roadside Testing Assessment Project (ROSITA Project). The study was done in collaboration with the Spanish Traffic Police, in Galicia (NW Spain), during 2004 and 2005. A total of 468 drivers selected at the police controls agreed to participate through informed consent. In addition, saliva samples were collected and sent to the laboratory to confirm the on-site results. For this purpose, two different analytical liquid chromatography–mass spectrometry (LC–MS) methods were used to detect 11 drugs or metabolites in a 300 μL sample. Simultaneous analysis of morphine, 6-acetylmorphine, amphetamine, methamphetamine, MDA, MDMA, MDEA, MBDB, cocaine and benzoylecgonine was carried out using 100 μL of oral fluid, after an automated solid phase extraction. A different LC–MS method was performed to detect Δ9-THC in 200 μL of oral fluid using liquid–liquid extraction with hexane at pH 6. Both methods were fully validated, including linearity (1–250 ng/mL, 2–250 ng/mL) recovery (>50%), within-day and between-day precision (CV < 15%), accuracy (mean relative error < 15%), limit of detection (0.5 and 1 ng/mL), quantitation (1 and 2 ng/mL) and matrix effect. All of the positive cases and a random selection of 30% of the negatives were analyzed for confirmation analysis. Good results (sensitivity, specificity, accuracy, positive predictive value and negative predictive value > 90%) were obtained for cocaine and opiates by OraLab, and for cocaine by Dräger. However, the results for the other compounds could be improved for both detection devices. Differences in the ease of use and in the interpretation mode (visual or instrumental) were observed. 相似文献
52.
Christopher J Ferguson Diana E WhiteStacey Cherry Marta LorenzZhara Bhimani 《Journal of criminal justice》2003,31(3):287
The last several decades have seen increased research attention to the subject of serial murder. Unfortunately, an empirical understanding of serial homicide continues to be impeded by difficulties in establishing a working definition for serial murder. Current definitions for serial homicide tend to focus on frequency and timing of homicide behaviors, and thus leave some confusion as to which groups of individuals should be included under the heading of serial murders. This article suggests alterations to the definition of serial murder, which focus not only on frequency and timing of homicide behaviors, but also on the motivation and context of those behaviors. 相似文献
53.
Among the wide range of theories explaining why some people vote and others do not, one is recently gaining particular popularity. This is the theory of voting as a habit (e.g. Plutzer, 2002; Franklin, 2004; Hooghe, 2004). The empirical evidence supporting this theory covers only Western democracies, so the following question might be asked: is this pattern universal? In the case of old democracies, voting is a habit acquired gradually in a process which starts at the moment of the very first election one can cast the ballot. In new democracies the situation is different, as we can pinpoint the starting moment (first democratic election), which is the same for different voters and thus different age cohorts. In this paper we investigate voting as a habit in new democracies, using data from the Polish National Election Study. We find that voting in Poland has some habitual aspect; repeated voting brings about a (sort of) habit, which has an intrinsic, irreducible effect on voter turnout. We also find that habit of voting is formed likewise in all age cohorts. 相似文献
54.
Marta Vizcaya Echano 《Feminist Review(on-Line)》2007,85(1):70-82
This paper examines how The Gangster of Love (1996), the second novel by Filipino American artist and writer Jessica Hagedorn, dismantles ready-made assumptions about the construction of minority and mainstream cultures. Spanning the period from the 1970s to the early 1990s, Gangster depicts the life of Rocky Rivera, a Filipina American young artist. As it portrays Rocky's family and friends, the novel examines the drastic re-articulation of the US’s self-image brought about by Filipino Americans and other groups marginalized as minorities by virtue of their ethnic, socio-cultural, and/or sexual identities. The narrative challenges dominant notions of who and what makes history, juxtaposing historical references with fictionalizations of real episodes and completely fictional incidents, and making a constant use of parody, irony, jokes and clichés. This paper studies Rocky's reworks of her multiple ethnic and socio-cultural allegiances in connection with her passion for music and popular culture, placing these reworks in the context of the Philippines’ colonial and neo-colonial background and multi-cultural US history. It also considers succinctly how Gangster's postcolonial dimensions intersect with a feminist and postmodern consciousness in a gendered strategy of socio-cultural resistance and critique. 相似文献
55.
Concheiro M Simões SM Quintela O de Castro A Dias MJ Cruz A López-Rivadulla M 《Forensic science international》2007,171(1):44-51
A fast method was designed for the simultaneous determination of amphetamine (A), methamphetamine (MA), PMA, MDA, MDMA, MDEA and MBDB in urine. The drugs were analysed by LC (ESI)-MS/MS, after a simple liquid-liquid extraction in the presence of the deuterated analogues. Reverse phase separation on an Atlantis dC18 Intelligent Speed column was achieved in less than 4 min under gradient conditions, and the total run time was 8 min. The method was fully validated, including linearity (1-1000 ng/mL for A, MDMA, MDEA and MBDB; 2-1000 ng/mL for MDA and PMA; 1-200 ng/mL for MA; r2>0.99 for all compounds), recovery (>80%), within-day and between-day precision and accuracy (CV and MRE<12.7% for intermediate level and ULOQ, and <17.2% for LLOQ), limit of detection (0.2 ng/mL for MDMA, MDEA and MBDB; 0.5 ng/mL for A, MA and PMA; 1 ng/mL for MDA) and quantitation (1 ng/mL for A, MA, MDMA, MDEA and MBDB; 2 ng/mL for MDA and PMA) and relative ion intensities. No matrix effect was observed. The procedure proved to be sensitive, specific and rapid, and was applied to real forensic cases. 相似文献
56.
Concheiro M de Castro A Quintela O Cruz A López-Rivadulla M 《Forensic science international》2007,170(2-3):156-162
The aim of this study was to assess the effectiveness of two current on-site oral fluid (OF) drug detection devices (OraLab and Dr?ger), as part of the Spanish participation in the Roadside Testing Assessment Project (ROSITA Project). The study was done in collaboration with the Spanish Traffic Police, in Galicia (NW Spain), during 2004 and 2005. A total of 468 drivers selected at the police controls agreed to participate through informed consent. In addition, saliva samples were collected and sent to the laboratory to confirm the on-site results. For this purpose, two different analytical liquid chromatography-mass spectrometry (LC-MS) methods were used to detect 11 drugs or metabolites in a 300 microL sample. Simultaneous analysis of morphine, 6-acetylmorphine, amphetamine, methamphetamine, MDA, MDMA, MDEA, MBDB, cocaine and benzoylecgonine was carried out using 100 microL of oral fluid, after an automated solid phase extraction. A different LC-MS method was performed to detect Delta(9)-THC in 200 microL of oral fluid using liquid-liquid extraction with hexane at pH 6. Both methods were fully validated, including linearity (1-250 ng/mL, 2-250 ng/mL) recovery (>50%), within-day and between-day precision (CV<15%), accuracy (mean relative error<15%), limit of detection (0.5 and 1 ng/mL), quantitation (1 and 2 ng/mL) and matrix effect. All of the positive cases and a random selection of 30% of the negatives were analyzed for confirmation analysis. Good results (sensitivity, specificity, accuracy, positive predictive value and negative predictive value>90%) were obtained for cocaine and opiates by OraLab, and for cocaine by Dr?ger. However, the results for the other compounds could be improved for both detection devices. Differences in the ease of use and in the interpretation mode (visual or instrumental) were observed. 相似文献
57.
This article identifies the factors that contribute to the successful implementation of intersectionality in European multilevel legal praxis through the analysis of the case B.S. v. Spain. Combining critical legal analysis of the main judicial documents with qualitative methodology from political science based on in‐depth interviews with key actors involved in the case, we uncover the obstacles and opportunities existing at the national and supra‐national levels for the implementation of intersectionality. We decipher the factors contributing to the exceptional success of this case through the conjoint analysis of macro, meso, and micro levels. Our analysis shows that a combination of the legal provisions, paradigms and structures, the roles of the different actors involved, and the applicant's subjective position made it possible to put intersectionality in practice. This study provides novel empirical evidence that contributes to advancing the theoretical debate about intersectionality implementation in the multilevel European context. 相似文献
58.
Paola C. Monkevicius Marta M. Maffia 《African and Black Diaspora: An International Journal》2014,7(2):188-198
Several academic studies on African and Afro-descendant population in Argentina have made reference to the ‘oblivion’ of the black component in the creation of an ethnically white and homogeneous national collective. The present work intends to rethink this issue in light of an Anthropology of the memory that promotes a critical analysis of the construction of an African past as diacritic of ethnic identification and interaction strategy related to the largest society, paying special attention to the actions of ethnic leaderships in the Afro community. In other words, we consider the processes of creation and validation of a social memory from an African origin by the ethnic entrepreneurs. For that purpose, we conduct a qualitative study employing the techniques characteristic of anthropological ethnography. 相似文献
59.
Marta Iñiguez de Heredia 《Human Rights Review》2008,9(3):299-316
This paper examines the UN 2000 Trafficking Protocol in the context of international responses to the issue of people trafficking. Attention is drawn to the conceptual flaws in this new instrument regarding the failure to address domestic trafficking, not incorporating the purchasing and selling of people as defining characteristics of trafficking, and the lack of clarity around issues of prostitution. Framing the discussion within feminist theory, the essay concludes that women’s campaigning will continue to be crucial to putting issues such as human trafficking on the international political agenda. This is extended to affirm that people’s struggle against oppressive circumstances will lead the tackling of the underlying causes of trafficking. 相似文献
60.
Marta Selinger 《Human Rights Review》2008,9(1):15-27
The protection of rights of freedom of speech and assembly for gays and lesbians in Poland has come under greater international
scrutiny because of the mismanagement of peaceful demonstrations throughout Poland in 2005. An overview and context of the
political, economic, and social transformation of Poland in the 1990s shows a flourish of activity among gays and lesbians
as the economic and political spheres open, as well as weaker law enforcement during the rapid change to capitalism and democracy.
Although society has opened dramatically and tolerance has grown recently, the concept of protecting minority rights for gays
and lesbians in Poland continues to be weak in public opinion, laws, and the top sources of opinion.
相似文献
Marta SelingerEmail: |