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71.
Hyperspectral imaging combined with multivariate statistics is an approach to microanalysis that makes the maximum use of the large amount of data potentially collected in forensics analysis. This study examines the efficacy of using hyperspectral imaging-enabled microscopies to identify chemical signatures in simulated bioagent materials. This approach allowed for the ready discrimination between all samples in the test. In particular, the hyperspectral imaging approach allowed for the identification of particles with trace elements that would have been missed with a more traditional approach to forensic microanalysis. The importance of combining signals from multiple length scales and analytical sensitivities is discussed. 相似文献
72.
Tasmanian opium accounts for 25% of the world's legal supply of opium straw, and in 1998-99 sufficient numbers of flower pods (66,013) to manufacture ca 500 kg of heroin were stolen. Whilst the heroin signature program has been developed to determine the origin of heroin from other key producers, no such signature currently exists for Tasmanian derived heroin. Tasmanian poppies contain a unique alkaloid, oripavine, which is the source of 'marker' impurities in illicit heroin produced from Tasmanian poppy straw. Treatment of oripavine (500mg) under Thiboumery and Mohr heroin processing conditions, followed by simple evaporative workup afforded 613 mg of a dark orange residue, which upon extensive chromatographic purification yielded oripavine 3-acetate (2) 22 mg; 3-acetyl-N-acetyldesthebaine (3) 35 mg; 3-acetyl-6-methoxy-4,5-epoxyphenanthrene (4) 5.8 mg; 3,4-diacetyl-6-methoxyphenanthrene (5) 27 mg; and 3,4,6-methoxy-5-[2(N-methylacetamido)]ethylphenanthrene (6) 52 mg. Compounds (2-6) are derived from oripavine and are unique to heroin derived from the Tasmanian poppy Papaver somniferum N. Analysis of illicit heroin samples seized from Turkey, Pakistan, Columbia and Myanmar did not reveal any of the aforementioned marker compounds. We have, however, identified four of these marker compounds (3-6) in seized heroin samples from Australia suggesting that they are of Tasmanian origin. Complete details of the isolation and identification of these compounds are provided. 相似文献
73.
Institutional Collective Action on Drugs: Functional and Vertical Dilemmas of Unused Pharmaceuticals
The authors use the Institutional Collective Action Framework to analyze the barriers, opposition, and opportunities for residential pharmaceutical disposal programs in the United States via a case study on a series of take‐back programs pioneered in the state of Washington by local and state governments, as well as the corresponding backlash from federal agencies. While successful in some ways, these innovative solutions directly challenged the competing federal policy regimes controlled by the Drug Enforcement Agency (DEA), and, to a lesser extent, the Environmental Protection Agency (EPA). Findings from case studies suggest that functional dilemmas created by existing institutions with entrenched regulatory regimes are a key challenge to finding efficient solutions to vertical ICA dilemmas. Conclusions, then, connect to the broader ICA research agenda, and implications for multi‐level governance issues. 相似文献
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77.
Luke Fowler 《Public administration》2020,98(3):713-729
In managing complex policy problems in the federal system, state and local governments are organized into different arrangements for translating policy goals into policy outcomes. Air quality management is used as a test case to understand these variations and their impact on policy outcomes. With data from Clean Air Act implementation plans and a survey of state and local air quality managers, five separate institutional designs are identified: (1) central agencies; (2) top-down; (3) donor–recipient; (4) regional agencies; and (5) emergent governance. Findings indicate that some arrangements (donor–recipient and emergent governance) result in notably better air quality than others (central agencies, top-down). Specifically, when designed to allow bargaining between state and local officials, intergovernmental management is still the most effective approach to complex policy problems; but, in absence of this, conventional federalism arrangements are less effective than public agencies self-organizing around shared policy goals. 相似文献
78.
Bradley L. Kirkman Debra L. Shapiro Luke Novelli Jr. Jeanne M. Brett 《Social Justice Research》1996,9(1):47-67
The increase in the use of self-managing work teams in organizations has been accompanied by growing employee resistance and concern about what such dramatic changes mean to workers. Using an organizational justice perspective, this chapter identifies and examines employee concerns about the move to self-managing work teams in two Fortune 500 organizations. Employee fairness concerns regarding three types of justice—distributive, procedural, and interactional—are highlighted. Findings suggest that to address employee fairness concerns regarding the move to self-managing work teams, managers should act distributively, procedurally, and interactionally justly.[Self-managing work teams are] the right way and the only way to be productive.—Self-managing work team member in a Fortune 500 company 相似文献
79.
Luke Clements 《Liverpool Law Review》1997,19(2):181-191
80.
David Fashole Luke 《公共行政管理与发展》1984,4(2):171-186
In most of the post-colonial states of sub-Saharan Africa, both the size of the state bureaucracy has grown and its functions proliferated. Whatever the economic rationale of public sector organizations, they do not exist and operate in a social and political vacuum. This paper argues that they are typically an integral part of a patron clientelist political and economic system on which the foundations of government sometimes depend. The consequences for the economic performance of public sector organizations arising out of this socio-political context is now widely recognized in the growing literature on African public enterprise. Contributions to this discussion, however, have tended to be dominated by economists and public administration specialists who have generally adopted a technocratic problem solution approach. In isolating their analyses of the performance of African parastatals from an appraisal of the role of the state, this approach fails to situate adequately the problem of performance in its proper context. This paper provides a case study which examines the administrative and economic operations of the Sierra Leone Port Organization in the colonial and post-colonial states. In arguing that problems of performance of African public sector organizations also require political solutions this discussion extends the discussion beyond a technocratic focus. 相似文献