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排序方式: 共有468条查询结果,搜索用时 265 毫秒
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Ana Celeste Ximenes Oliveira Ph.D. Alexandre Leão Ph.D. Karla Balzuweit Ph.D. Livia Siman Ph.D. Oscar Nassif Mesquita Ph.D. Luiz Orlando Ladeira Ph.D. Luiz Alberto Cury Ph.D. 《Journal of forensic sciences》2019,64(6):1867-1872
The optical and morphological properties of resveratrol were investigated. This nontoxic fluorescent natural material, emitting in the visible blue light, was used as an optical marker, enabling the enhancement of the image contrast coming from relief pictures marked on challenging surfaces. By applying appropriated imaging softwares, this marker was verified to be very useful in the latent fingerprint recognition deposited on different wood surface types, mainly those with high level of roughness, where conventional forensic materials do not allow effective fingerprint image visualization. 相似文献
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Ana C. Dinerstein 《Bulletin of Latin American research》2003,22(2):187-200
In December 2001, Argentina experienced a decisive crisis. A financial collapse accelerated by the massive flight of capital and the IMF denial of a new loan was followed by a popular insurrection which, by putting forward the slogan ¡ que se vayan todos, que no quede ni uno solo ! forced the resignation of national authorities. Whilst Duhalde's provisional government is negotiating the conditions for international financial support, faced with inflation and the rise of the dollar exchange rate, social mobilisation is expanding in new forms. This paper argues that the popular insurrection of December 2001 opened a space for the reinvention of the political as negative politics, the asambleas barriales constituting one example of this. 相似文献
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Marta Concheiro Ana de Castro Oscar Quintela Manuel Lpez-Rivadulla Angelines Cruz 《Forensic Science International Supplement Series》2005,150(2-3):221
This paper describes the analytical methodology for the determination of MDMA, MDA, MDEA and MBDB in oral fluid. After a liquid–liquid extraction, the analysis was carried out by high performance liquid chromatography (HPLC), with fluorescence detection. The detector wavelength was fixed at 285 nm for excitation and 320 nm for emission. The mobile phase, a mixture of phosphate buffer (pH = 5) and acetonitrile (75:25), and the column, Kromasil 100 C8 5 μm 250 mm × 4.6 mm, allowed good separation of the compounds in an isocratic mode in only 10 min. The method was validated and showed good limits of detection (2 ng/mL) and quantitation (10 ng/mL) for all the amphetamine derivatives. No interfering substances were detected. A stability study of these compounds in oral fluid stored at three different temperatures (−18, 4 and 20 °C) over 10 weeks was conducted, showing a time-dependent degradation of the four compounds. 相似文献
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ABSTRACTThe Dayton Peace Agreement ended the violence in Bosnia–Herzegovina, however, it also solidified antagonistic political identities leading to the creation of two social contracts: an ‘elite social contract’ involving primarily political elites of the main ethnic groups and an ‘everyday social contract’ involving ordinary citizens trying to manage a complex social and economic environment. The first social contract is hegemonic, however, alternative, non-nationalist views are slowly emerging. Grassroots groups, the surviving remnants of inter-ethnic coexistence, the integrating pull of market forces and the presence of a large diaspora all constitute resources for the creation of a resilient national social contract. 相似文献
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Ana Isla 《Capitalism Nature Socialism》2018,29(1):25-39
ABSTRACTThis paper evaluates global capital’s ecological management and extends the assessment to the “green economy,” as developed in the first “green” neoliberal project, in Costa Rica. Costa Rica has been an important “laboratory” for experimentation in environmental governance mechanisms using debt-for-nature financial exchanges and other instruments of the Kyoto Protocol. I explore how “greening” can be understood as a new phase of capital accumulation, as I go into its five main aspects. 相似文献
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The socialist factory, as the ‘incubator’ of the new socialist (wo)man, is a productive entry point for the study of socialist modernization and its contradictions. By outlining some theoretical and methodological insights gathered through field-research in factories in former Yugoslavia, we seek to connect the state of labour history in the Balkans to recent breakthroughs made by labour historians of other socialist countries. The first part of this article sketches some of the specificities of the Yugoslav self-managed factory and its heterogeneous workforce. It presents the ambiguous relationship between workers and the factory and demonstrates the variety of life trajectories for workers in Yugoslav state-socialism (from model communists to alienated workers). The second part engages with the available sources for conducting research inside and outside the factory advocating an approach which combines factory and local archives, print media and oral history. 相似文献
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Gloria Álvarez Bernardo Nuria Romo Avilés Ana Belén García Berbén 《Journal of Gender Studies》2018,27(6):672-682
Housework and childcare have been considered mechanisms for ‘doing gender’ through the allocation of different functions to women and to men. Women continue to devote more time and effort to this type of work, in spite of their progressive incorporation into the labour market. Same-sex couples escape this gender binarism, and so this study set out to learn the distribution criteria work, as well as the influence of gender socialization when it comes to establishing this distribution. A qualitative investigation was carried out with 21 Spanish same-sex families. The results indicate that the majority of couples position themselves in an egalitarian discourse based on the absence of differentiated gender roles and a low level of specialization. No differences were found between male and female couples. Nevertheless, the female couples show higher levels of discontent when the distribution was not egalitarian. In conclusion, it is proposed that the effects of gender socialization are perpetuated beyond heterosexual relationships and also affect same-sex couples. 相似文献