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151.
Analysis of ecstasy tablets: comparison of reflectance and transmittance near infrared spectroscopy 总被引:1,自引:0,他引:1
Calibration models for the quantitation of commonly used ecstasy substances have been developed using near infrared spectroscopy (NIR) in diffuse reflectance and in transmission mode by applying seized ecstasy tablets for model building and validation. The samples contained amphetamine, N-methyl-3,4-methylenedioxy-amphetamine (MDMA) and N-ethyl-3,4-methylenedioxy-amphetamine (MDE) in different concentrations. All tablets were analyzed using high performance liquid chromatography (HPLC) with diode array detection as reference method. We evaluated the performance of each NIR measurement method with regard to its ability to predict the content of each tablet with a low root mean square error of prediction (RMSEP). Best calibration models could be generated by using NIR measurement in transmittance mode with wavelength selection and 1/x-transformation of the raw data. The models build in reflectance mode showed higher RMSEPs using as data pretreatment, wavelength selection, 1/x-transformation and a second order Savitzky-Golay derivative with five point smoothing was applied to obtain the best models. To estimate the influence of inhomogeneities in the illegal tablets, a calibration of the destroyed, i.e. triturated samples was build and compared to the corresponding data of the whole tablets. The calibrations using these homogenized tablets showed lower RMSEPs. We can conclude that NIR analysis of ecstasy tablets in transmission mode is more suitable than measurement in diffuse reflectance to obtain quantification models for their active ingredients with regard to low errors of prediction. Inhomogeneities in the samples are equalized when measuring the tablets as powdered samples. 相似文献
152.
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154.
Ralph R. Premdas 《公共行政管理与发展》1982,2(3):239-251
The Solomon Islands became independent in 1978. Influenced by developments in neighbouring Papua New Guinea, a plan for provincial government has been introduced in order ostensibly to achieve more effective decentralization than operated through local government councils. This article describes the successive attempts at establishing local government councils and discusses the present plan for provincial government in the context of experience with local councils. The plan is seen as an attempt at returning power to the people and avoiding the development of a centralized authority serving the interests of those associated with Central government. 相似文献
155.
This article examines the role social imaginations play in legitimizing extrajudicial killings by death squads in the era
of globalization. The role of popular imagining has expanded into a widespread social practice as people increasingly draw
on images from all over the world via modern communication technologies. Drawing on Mary Douglas’ concept ‘matter out of place’
and Nancy Scheper-Hughes’ ‘symbolic apartheid’ we argue that to a certain extent, dehumanizing imaginations about socially
excluded groups legitimize death squad killings. The article compares two case studies on death squads in the cities of Medellín,
Colombia and Davao City, Philippines. We conclude that social imaginations in the era of globalization may be a driving force
behind death squads in these and other major cities in the world. 相似文献
156.
Cevat Giray Aksoy Christopher S. Carpenter Ralph De Haas Mathias Dolls Lisa Windsteiger 《Journal of policy analysis and management》2023,42(1):35-59
We study basic information treatments regarding sexual orientation using randomized experiments in three countries with strong and widespread anti-gay attitudes: Serbia, Turkey, and Ukraine. Participants who received information about the economic costs to society of sexual orientation discrimination were significantly more likely than those in a control group to support equal employment opportunities based on sexual orientation. Information that the World Health Organization (WHO) does not regard homosexuality as a mental illness increased social acceptance of sexual minorities, but only for those who reported trust in the WHO. Our results have important implications for policymakers aiming to expand the rights of lesbian, gay, and bisexual people worldwide. 相似文献
157.
158.
Ralph Sandland 《Feminist Legal Studies》2013,21(1):81-108
This paper interrogates Michel Foucault’s claim, that the spread of psychiatric power originated in concerns around the educatability of idiot children in the latter decades of the nineteenth century, before being applied to adult “defectives”. It is argued that Foucault, although partially correct, fails adequately to consider the extent to which the base concept, of “instinct”, was linked in particular ways to female idiot sexuality. The paper challenges Foucault’s view through an analysis of a series of nineteenth century cases involving the rape of female idiots, arguing that their sexuality was understood in terms of a relation to instinct which manifested in terms of an opposition between dangerousness and vulnerability. It then traces that opposition into the Mental Deficiency Act 1913 where, it is argued, it functioned in a collapsed form—now, the vulnerable were dangerous and the dangerous were vulnerable—and in which form it underpinned a psychiatrised regime for the control of mentally defective women through the control of their sexuality. 相似文献
159.
160.
Ralph Heintzman 《Canadian public administration. Administration publique du Canada》2016,59(3):357-381
The Clerk of the Privy Council's (PCO) role in the 2012 confrontation with the Parliamentary Budget Officer is re‐examined as a case study in the imperatives of public service leadership in a system of responsible government. PCO's 2014 defence of the Clerk's conduct is contradicted both by the Clerk's text and by its own logical consequences. Both in form and substance, the Clerk crossed the boundary that should exist between public service and political values, and thus provided additional evidence of the need to re‐establish the necessary boundary between elected and unelected officials in a parliamentary democracy. 相似文献