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This article examines the relationship between the populations of the more and less developed societies between the first century and 2100. Such an analysis reveals a changing dependency between the level of development (and GDP) achieved and population numbers between the first century and 1998. In relation to the past the article suggests a dynamic model for dividing the world into more and less developed areas. In relation to the present and the future it bases the population analysis on the developmental division of the world as published by one of the co-authors of this article. The article largely uses population estimates (with those referring to the past taken from Angus Maddison and those referring to the future from the most recent projections by the United Nations). Taking the 2013 UN projection as a model, it discusses three variants for demographic development in the North and South up to 2100. It argues that the more restrictive population growth variants of the UN projection predict a greater relative ‘Third Worldisation’ of the world than does the most dynamic projection. 相似文献
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Karolina Nowak M.Sc. Paweł Szpot Ph.D. Marcin Zawadzki Ph.D. 《Journal of forensic sciences》2020,65(5):1784-1790
We present results of our study on the stability of 4-chloromethcathinone (4-CMC) in authentic postmortem peripheral blood and vitreous humor samples. The stability of 4-CMC was determined in postmortem blood samples (for a period of 90 days) and vitreous humor (30 days) at three different temperatures: −15°C, +4°C, and + 23°C. The analyses were carried out using ultra-high-performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry (UHPLC-QqQ-MS/MS). In both materials, the lowest 4-CMC stability was demonstrated at room temperature. The blood samples stored in a freezer (−15°C) showed stability for the entire study period (90 days), while in the case of the vitreous humor sample stored at the same temperature the concentration of the substance decreased by 53% after 30 days. The study carried out in authentic postmortem blood and vitreous humor samples confirms the previous reports of 4-CMC instability in biological material. Authors suggest that the biological material should be stored frozen until analyses are carried out as soon as possible after collection of the material. 相似文献
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Marcin Wojciech Solarz 《Third world quarterly》2017,38(8):1753-1766
The 1940s saw an intensification of worldwide interest in the problems of development and underdevelopment. One consequence of this was a rapid evolution of the language of global development. The reconstruction of its genesis is most commonly attempted through the analysis of literature on the subject and accounts by those who took part in or observed the debates of the time concerning the world’s development and structure. This article proposes a different approach which locates important events in the evolution of the modern language of global development on timelines tracing populational, political, socio-economic and civilisational processes. 相似文献
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Marcin Kaczmarski 《欧亚研究》2017,69(7):1027-1046
Russia and China have been pursuing the Eurasian Economic Union and the One Belt, One Road initiative since the early 2010s, employing two distinct sets of practices in their respective influence-building endeavours. Russia is interested in creating an exclusive sphere of influence in the post-Soviet space, in order to bolster its great power status and secure regional primacy. China, in turn, is expanding its economic influence over a vast geographical area disguising economic expansion behind multilateralism. These differences make Sino–Russian competition in Central Asia less plausible. 相似文献
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Wojciech W. Charemza 《Economic Change and Restructuring》1992,25(1):21-35
The paper investigates causes of the stagflation phenomena which appeared in Poland in the period after the ‘shortageflation’, i.e. after February 1990. It is conjectured that one of the primary reasons for the appearance of the stagflation was substantial market uncertainty, which led to a market failure. The theoretical analysis is based on the Newbery-Stiglitz model of futures trading. This reveals that, in the presence of huge price variations a market is likely to fail if a substantial backwardation accompanies negative correlation between prices and quantities. The empirical evidence consists of testing market efficiency (weak and semi-strong forms) and the rational expectations hypothesis for the Polish consumption market and inflation in the period of shortageflation. It is found that the market survives the tests for weak efficiency but fails the test for semi-strong efficiency and rational expectations. 相似文献
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