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81.
俄罗斯大学生与捷克、中国大学生价值取向的比较   总被引:2,自引:1,他引:1  
在前社会主义国家的政治、经济主导思想经历了重大变革后,社会学家们开始对近十年来这些国家的青年学生价值观及其结构表现出极大的兴趣.本研究也着眼于此,需要指出的是:第一,我们所研究的主体是价值取向而不是价值观,因为价值取向的概念较价值观更为广泛一些;第二,所强调的不但是青年而且是大学生--社会中最求进步、最活跃、能在最大程度上影响社会变革中价值观和前途的群体;第三,分析青年学生价值取向在某种程度上可预测不同的社会趋向.  相似文献   
82.
One major objective of the European project "Collaborative Harmonisation of Methods for Profiling of Amphetamine Type Stimulants" (CHAMP), funded by the sixth framework programme of the European Commission, consisted of the harmonisation of a gas chromatography/mass spectrometry (GC/MS) method for the analysis of organic impurities found in illicit methamphetamine (MA) samples in a drug intelligence perspective. Statistical analysis provided a selection of pertinent variables among the 43 organic impurities identified in the chromatograms. As for the 3,4-MethyleneDioxyMethAmphetamine (MDMA) study, correlation coefficients were used as a discrimination tool between populations of linked samples (from the same seizure) and unlinked samples (from different seizures). It was also shown that correlation measurements based on Pearson and cosine functions applied to the data pre-treated by normalisation to the sum of peak responses followed by the square root provided excellent discrimination between the two populations. The organic impurities profiling method was proved to be relevant for the characterization of samples from different seizures and their synthesis route patterns.  相似文献   
83.
Octavia Butler's 1979 novel, Kindred, is a postmodern slave narrative that redefines the previous literary constructions of slavery in the United States. Through its rejection of the nineteenth century slave narrative and sentimental novel, Kindred highlights the main problem with nineteenth century narrative empathy: Forging an intimate identification between reader and character to enact empathy is founded through the representation of bodies in pain. In place of this identification tactic, Kindred reveals a new critical apparatus, essential for a mobilization of empathy centered on understanding both history and the process of historical recuperation. This investigation of empathy sheds light on the problematic construction of the early liberal human rights model across the Americas, a model centered on promoting identification with the suffering other.  相似文献   
84.
The analytical properties for a new street drug, 4-methylthioamphetamine (4-MTA), are presented. This new compound was found in tablets sold on the illicit market in the Netherlands and Switzerland in 1997 and 1998. The intermediate 1-(4-methylthiophenyl)-2-nitropropene was also found in a clandestine laboratory in the Netherlands in January 1997. In this study, reference standards were prepared and characterized. The ultraviolet, infrared and nuclear magnetic resonance spectral properties as well as the chromatographic and mass spectrometric (MS) data are reported.  相似文献   
85.
Between 2004 and 2008 the Forensic Isotope Ratio Mass Spectrometry (FIRMS) network organised four Inter-Laboratory Camparison excercises with the aim of harmonising and validating isotopic measurements to be used for forensic applications.The samples distributed comprised materials of potential forensic interest such as packaging and pharmaceuticals to be analysed for δ2H, δ13C, δ15N and δ18O composition. As many as 30 international laboratories participated in these comparisons. Results have shown overall improvements for both within- and inter-laboratory reproducibility with respect to δ13C and δ15N measurements.Only a small number of laboratories returned results for δ2H and δ18O analysis and these results highlighted a need for improvement in the reproducibility of these measurements and a need to address the exchange of hydrogen between samples and ambient moisture. Results also highlighted the importance of sample preparation procedures and the need to standardise both these procedures and calibration against Standard Reference Materials. Future Inter-Laboratory Comparison exercises will assess the suitability of laboratories to submit data to national and international databases similar to those currently operated for fingerprints, DNA etc.  相似文献   
86.
The Internet of Things (IoT) is a disruptive innovation known for its socio-economic potential, but also for generating unprecedented vulnerabilities and threats. As a dynamic sociotechnical system, the IoT comprises well-known cybersecurity risks and endemic uncertainties that arise as IoT adoption increases and the system evolves. We highlight the impact of these challenges by analyzing how insecure IoT devices pose threats to both consumer protection and the Internet's infrastructure. While recent regulatory responses are starting to target IoT security risks, crucial deficiencies – especially related to the feedback necessary to keep pace with emerging risks and uncertainties – must be addressed. We propose a model of adaptive regulatory governance that integrates the benefits of centralized risk regulatory frameworks with the operational knowledge and mitigation mechanisms developed by epistemic communities that manage day-to-day Internet security. Rather than focusing on the choice of regulatory instruments, this model builds on the “planned adaptive regulation” literature to highlight the need to systematically plan for a knowledge-sharing interface in regulatory governance design for disruptive technologies, facilitating the feedback necessary to address evolving IoT security risks.  相似文献   
87.
Abstract

The essay focuses on Russian policy towards displaced persons from Ukraine’s war-torn territories from 2014 until mid-2019. The privileging of refugees from Ukraine relative to immigrants and refugees from other countries and, later, the granting of Russian citizenship to Ukrainian citizens from the Donetsk and Luhansk regions, were interwoven with both influence-seeking in the Russian geopolitical neighbourhood and transborder nationalism and supported via direct presidential control of immigration. Despite a series of decrees and involvement of civil society in providing support, this essay detected a lack of efficient mechanisms for responding to the needs of the displaced.  相似文献   
88.
Amphetamine samples were analysed by gas chromatography-mass spectrometry (GC-MS), and the peak areas of 33 target compounds were transformed by applying various pretreatment techniques. The objective was to optimise the ability of a number of distance metrics to establish links between samples of amphetamine originating from the same batch (henceforth referred to as linked distances). Furthermore, partial least squares discriminant analysis (PLS-DA) was used to evaluate the effects of various pretreatment methods on separation of amphetamine batches synthesised by the Leuckart reaction, reductive amination of benzyl methyl ketone, and the nitrostyrene route. The most efficient way to pretreat GC-MS data varied for the different distance metrics, although best results were obtained when data were normalised to the sum of peak areas, and either the fourth root or a logarithm was applied to the normalised data. When pretreating normalised data by fourth root transformation, Pearson correlation was the distance metric that was most successful at finding linked samples. Normalisation and the use of fourth root also represented the best method of pretreating data when employing PLS-DA to separate samples synthesised by different routes. To achieve a faster and more user-friendly procedure for evaluating chromatograms, experiments were performed in which the number of target compounds used to compare samples was reduced. The effect of each compound that was removed was studied by applying PLS-DA and by using Pearson correlation to calculate linked distances as well as unlinked distances (between samples from different batches of amphetamine). Considering both links between samples from the same batch and separation of samples synthesised by different routes, the best results were obtained with the data set comprising 26 compounds. Finally, it was found that the profiling method developed in this work was superior to an existing technique with respect to separating linked and unlinked distances.  相似文献   
89.
90.
The issue of detention as a public health control measure has attracted attention recently. This is because the threat of strains of tuberculosis that are resistant to a wider range of drugs has been identified, and there is renewed concern that public health is threatened. This paper considers whether involuntary detention is justified where voluntary measures have failed or where a patient poses a danger, albeit uncertain, to the public. We discuss the need for strengthening evidence-based assessments of public health risk and suggest that we should reflect more profoundly on the philosophical foundations upon which our policies and practices are grounded.  相似文献   
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