首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   761篇
  免费   40篇
  2023年   12篇
  2022年   13篇
  2021年   18篇
  2020年   40篇
  2019年   46篇
  2018年   47篇
  2017年   55篇
  2016年   45篇
  2015年   31篇
  2014年   36篇
  2013年   159篇
  2012年   42篇
  2011年   27篇
  2010年   31篇
  2009年   34篇
  2008年   29篇
  2007年   18篇
  2006年   17篇
  2005年   16篇
  2004年   6篇
  2003年   17篇
  2002年   13篇
  2001年   8篇
  2000年   10篇
  1999年   7篇
  1998年   9篇
  1997年   4篇
  1996年   4篇
  1994年   2篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1984年   1篇
  1981年   1篇
排序方式: 共有801条查询结果,搜索用时 0 毫秒
61.
A noted American authority on China's economy and monetary policy presents a statistical as well as theoretical analysis of a variety of perspectives on the controversy surrounding China's currency, basing his paper on both. The author provides the historical background and comprehensive summaries, focusing on different viewpoints about whether China's currency is undervalued, and thus may contribute to global imbalances. In the paper, he divides observers involved in the controversy into two main camps, namely the ones who find China's trade balances to be sensitive to price effects through exchange rate adjustments and those who emphasize other factors as bearing the responsibility for China's large surpluses, including the U.S. credit bubble emerging before the global financial crisis, as well as a version of Dutch disease.  相似文献   
62.
Two specialists on Russia's minerals industries examine the evidence supporting the argument that the Russian mining conglomerate Noril'sk Nickel can be viewed as a global company. Included among the criteria they assess are the geographic dispersion of the company's markets and operations, the diversified and multinational character of its ownership, whether it has matched the performance standards set by its major international competitors, and the effect of the company's ownership presence on the management style of its foreign operations. A particular focus is on how an ongoing conflict between two major Russian oligarch shareholders (Vladimir Potanin and Oleg Deripaska) has shaped Noril'sk Nickel's ownership and management structure, which is characterized by the continued (background) presence of the state, the lack of any organized policy for training a multinational management cohort, and the absence of a major block of foreign shareholders. In the end, they conclude that Noril'sk Nickel is not a genuinely global but rather a Tier-1 Russian company, albeit one with a global scale of operations.  相似文献   
63.
Skill Matters     
Skill is a challenging topic for archeologists because it requires balancing the biases of cultural relativity with the commonsense understanding that some humans are more able than others. Using the content and results model of technology, this paper identifies skill as a variable of technological knowledge with recognizable material results. Late Paleolithic Japanese blade and microblade assemblages suggest that skill differentials exist on the cognitive, operational, and motor levels. These examples, together with ethnoarcheological consideration of modern potters suggest material reflections of technical skill. These include regularity in performance and product, skilled tools, and obvious signs of practice.  相似文献   
64.
Until recently, Zara, a major international clothing retailerand pioneer of ‘fast fashion’ principles, kept almosthalf of its production in Spain and Portugal, earning the reputationof being one of the exceptions to globalization. Since the 1980s,the existence of such exceptions has been fueling an expectationthat the production of high-quality fashion garments and tailoredsuits would remain in the industrialized core. Here I revisitthis expectation in the light of the current seminal changein the culture of fashion from ready-to-wear to fast fashion,and report that the increased variety and fashionability associatedwith fast fashion, represented by Zara, have tilted the balanceof competitive advantage towards, rather than away from, firmsin partially industrialized countries. As a number of supplierfirms in countries such as Morocco, India and Turkey have gainedthe competence to manufacture intricately worked high-qualitygarments with the required flexibility and speed, Zara has turnedto sourcing from these countries. It appears that instead ofZara changing the geography of jobs, the geography of competenciesand jobs has changed Zara.  相似文献   
65.
This paper documents a comprehensive study of coarse wares for table use, serving, washing and cooking, found at the archaeological site of Paola (Cosenza, southern Italy). Major aims of the study were to group local products and imports and to determine technological features of local products. Results were obtained through a combination of archaeological (stratigraphy and ceramic typology), chemical and mineralogical–petrographical techniques (ICP-OES, ICP-MS, INAA, XRF, OM, SEM-EDS and EMPA). Data integration revealed that the coarse wares found at Paola were produced locally or imported over short (Calabria region), medium (Campania, Pantelleria, Sicily) and long distances (Greece and Africa). The local production focused on basins, stewpots, pitchers, bowls, pans, casseroles and lids, sometimes imitating African, or Pompei (Campania) or San Foca (Puglia) typical shapes. The production technology of local ceramics used a sandy–clayey blend of materials collected in the immediate vicinity of the archaeological site, fired at intermediate (about 800 °C) to low (around 650–750 °C) temperatures and used a Fe-rich clayey compound as a red ceramic coating. From a technological perspective, the Paola example arise new questions about table wares produced with clay bodies typical of cooking wares.  相似文献   
66.
In Roman and Byzantine times, natron glass was traded throughout the known world in the form of chunks. Production centers of such raw glass, active from the 4th to 8th century AD, were identified in Egypt and Syro-Palestine. However, early Roman primary glass units remain unknown from excavation or scientific analysis. The ancient author Pliny described in 70 AD that besides Egyptian and Levantine resources, also raw materials from Italy and the Gallic and Spanish provinces were used in glass making. In this study, the primary provenance of 1st–3rd century AD natron vessel glass is investigated. The use of combined Sr and Nd isotopic analysis allows the distinguishing and characterizing of different sand raw materials used for primary glass production. The isotope data obtained from the glass samples are compared to the signatures of primary glass from known production centers in the eastern Mediterranean and a number of sand samples from the regions described by Pliny the Elder as possible sources of primary glass. Eastern Mediterranean primary glass has a Nile dominated Mediterranean Nd signature (higher than −6.0 ? Nd), while glass with a primary production location in the western Mediterranean or north-western Europe should have a different Nd signature (lower than −7.0 ? Nd). Most Roman glass has a homogeneous 87Sr/86Sr signature close to the modern sea water composition, likely caused by the (intentional) use of shell as glass raw material. In this way, strontium and neodymium isotopes now prove that Pliny's writings were correct: primary glass production was not exclusive to the Levant or Egypt in early Roman days, and factories of raw glass in the Western Roman Empire will have been at play.  相似文献   
67.
Bitumen, found in abundance in Mesoamerica’s southern Gulf Coast region in natural seeps and in many archeological contexts, is an important economic resource and exchange item that has received little consideration in Mesoamerica. Analyses of archeological, ethnoarcheological, and experimental data provide insights on the organization of bitumen processing activities, and the end product (archeological bitumen), which the Olmec (1200–400 BC) used in the production of many items. Archeological data are derived from investigations at El Remolino and Paso los Ortices— two Early Formative period levee sites in the San Lorenzo Olmec region. Our findings suggest that among the Olmec, bitumen processing was organized as a specialized activity, involving multiple production stages, but not necessarily elite involvement or control.  相似文献   
68.
汉代官营手工业主要是统治为满足自身需要而组织的生产形式,由于商品经济的影响,官营手工业也部分从事商品性生产。两汉官营手工业中的商品性生产,是商品生产的一种畸形化,严重阻碍了商品经济的发展。  相似文献   
69.
20世纪末,我国的物保护科学技术基本形成了具有中国特色的完整的科学体系。在石质物、金属物、纸张物、竹木漆器物、壁画物、石窟物等的保护技术方面取得了多项科研成果,并且达到或接近世界先进水平,使我国许多珍贵的化遗产得到了抢救和有效地保护。  相似文献   
70.
Hugo Radice 《对极》2010,41(Z1):27-49
Abstract: In 2008 the 40th anniversary of that iconic year, 1968, was celebrated in the media in relation to student uprisings and cultural revolts, largely neglecting the very significant movements of workers and peasants who were challenging power structures around the world at that time. This omission reflects the failures of socialism in the twentieth century, which are explored in this essay. Beginning from a more complete picture of 1968, the essay examines the history of socialism, identifying the main sources of failure in its theory and practice, in particular that of the revolutionary left. If the failure lies in the elite character of socialist politics and its focus on distribution rather than production, it is to be remedied by a firm focus on the politics of the workplace and the goal of substantive equality. The concluding section reviews the prospects for such an alternative in the current circumstances of global crisis.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号