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   15678篇
  免费   501篇
各国政治   559篇
工人农民   1276篇
世界政治   677篇
外交国际关系   568篇
法律   9793篇
中国政治   40篇
政治理论   3229篇
综合类   37篇
  2020年   174篇
  2019年   192篇
  2018年   1450篇
  2017年   1405篇
  2016年   1245篇
  2015年   285篇
  2014年   209篇
  2013年   829篇
  2012年   356篇
  2011年   1083篇
  2010年   1206篇
  2009年   819篇
  2008年   900篇
  2007年   841篇
  2006年   185篇
  2005年   227篇
  2004年   360篇
  2003年   309篇
  2002年   170篇
  2001年   314篇
  2000年   258篇
  1999年   232篇
  1998年   111篇
  1997年   78篇
  1996年   88篇
  1995年   112篇
  1994年   113篇
  1993年   92篇
  1992年   154篇
  1991年   162篇
  1990年   147篇
  1989年   160篇
  1988年   126篇
  1987年   143篇
  1986年   129篇
  1985年   135篇
  1984年   112篇
  1983年   125篇
  1982年   89篇
  1981年   83篇
  1980年   59篇
  1979年   114篇
  1978年   77篇
  1977年   65篇
  1976年   51篇
  1975年   47篇
  1974年   55篇
  1973年   58篇
  1972年   44篇
  1968年   41篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
361.
To identify what is needed to sustain local democracy we need a model of democratic government and an idea of the kind of social and economic context that is supportive of democracy. Local democracy requires a combination of a liberal democratic model of local government and the prerequisites of democratic stability: economic development, equality, political culture and the development of civil society. However, a number of factors, non-local as well as local, may undermine local government and local democracy, especially centralization, economic decisions, external conflicts, dependency on civil servants, the dilution of elected representation, formalistic participation, skewed representation, class conflict and official attitudes. However, democratic local government can contribute to economic development, the reduction of inequality, a democratic political culture and the development of civil society, thereby strengthening local democracy.  相似文献   
362.
363.
Brian Masshardt 《East Asia》2007,24(3):319-335
Prime Minister Koizumi’s six consecutive annual visits to Yasukuni shrine played a key role in initiating a new phase of domestic citizen political mobilization not seen since the early 1970s. This paper is based on field research during the Koizumi years (2001–2006) centering on domestic groups that conduct activities in “protection” of or “opposition” to Yasukuni shrine. As a study of street-based politics, this paper seeks to uncover the processes, strategies, and outcomes of citizen responses to elite political action at Yasukuni Shrine as well as explore meaning of their actions within the context of Japan’s democratic polity.
Brian MasshardtEmail:

Brian Masshardt   is Lecturer, Musashi University, and a Ph.D. Candidate, University of Hawaii-Manoa, whose research addresses the political aspects of Yasukuni in the context of domestic politics and citizen’s movements. His doctoral dissertation, entitled ‘Democracy and Yasukuni: Citizen Reaction to political action at Yasukuni Shrine, 2001–2006’ has served as the basis for conference presentations on Yasukuni and its attendant controversies.  相似文献   
364.

China’s rise as a global power corresponded with a diminution of Taiwanese diplomacy, which has left Central America as the last region to host a continuous bloc of countries that recognize the ROC. In this article, we argue that China’s success in gaining diplomatic recognition from Taiwan’s former allies has largely resulted from China's economic policy, specifically its promises of large-scale infrastructure projects and the integration of Central American economies with Chinese markets. However, there are limits to how far China has advanced in gaining full recognition from the region. The competing political and economic interests of China, Taiwan, the United States, and the Central American countries themselves, continue to influence patterns of diplomatic switching. More specifically, we argue that the threat of punitive measures from the United States combined with a turn in Taiwanese diplomacy toward assistance efforts to combat Covid-19 may deter future switching in the short to medium-term. Our analysis offers case studies of four Central American countries (Costa Rica, Panama, El Salvador and Nicaragua) to illustrate the multi-year processes by which China’s economic strategy leads to diplomatic switching and examine the paths ahead for the remaining holdouts facing the prospect of economic and political penalties by the United States.

  相似文献   
365.
366.
Journal of Youth and Adolescence - Court-involved youth exhibit high rates of psychiatric symptoms, substance use, and delinquency, yet little is known about the contributing roles of caregiver and...  相似文献   
367.
The Journal of Technology Transfer - Despite the growing interest in understanding innovative activities, an important limitation of the current literature on innovation—both public and...  相似文献   
368.
Correctly assessing heart weight can be critical at postmortem examination. The current international guidelines advocate using the short-axis method in dissecting the heart and the heart weighed when the blood is emptied. However, it did not specify at what point the heart should be weighed or how the blood should be emptied. This study compared heart weights at three different time points during the heart examination (immediately after dissecting out of the pericardial sac with blood still in chambers, blood washed/removed from heart chambers without the heart opened, and the heart completely opened, blood emptied, and pad dried). This was to illustrate the variation in measurement and potential errors when the heart is weighed at different time of dissection. The results show that there were statistical and clinical significant differences between the heart weights at each weighing points. We recommend the heart to be completely dissected with any blood and residual washing/rinsing water emptied before being weighed. Although performed in this study, the effect of pad drying the heart on heart weight was not explored and was a limitation in this study.  相似文献   
369.
Postmortem computed tomography (PMCT) is integrated into the evaluation of decedents in several American medical examiner offices and medicolegal death investigative centers in many other countries. We retrospectively investigated the value of PMCT in a series of firearm homicide cases from a statewide centralized medical examiner’s office that occurred during 2016. Autopsies were performed or supervised by board-certified forensic pathologists who reviewed the PMCT scans prior to autopsy. PMCT scans were re-evaluated by a forensic radiologist blinded to the autopsy findings and scored by body region (head–neck, thoracoabdominal, and extremities). Injury discrepancies were scored using a modified Goldman classification and analyzed with McNemar’s test. We included 60 males and 20 females (median age 31 years, range 3–73). Based on PMCT, 56 (79.1%) cases had injuries relevant to the cause of death in a single body region (24 head–neck region, 32 thoracoabdominal region). Out of these 56 cases, 9 had a missed major diagnosis by PMCT outside that region, including 6 extremity injuries visible during standard external examination. Yet all had evident lethal firearm injury. We showed that PMCT identifies major firearm injuries in homicide victims and excludes injuries related to the cause of death in other regions when a single body region is injured. Although PMCT has a known limited sensitivity for soft tissue and vascular pathology, it can be combined with external examination to potentially reduce or focus dissections in some of these cases depending on the circumstances and medicolegal needs.  相似文献   
370.
A simple, quick, selective, sensitive, and effective field-friendly method capable of being used by nonexperts has been developed for detecting mitragynine in Mitragyna speciosa (kratom) using surface-enhanced Raman spectroscopy (SERS). Over 100 samples and blanks (known to be either positive or negative for the presence of mitragynine) were examined in duplicate using five identical handheld Raman spectrometers, which provided a data set of over 1,000 examinations. Based on the results of these analyses, the method yielded a true-positive rate of 99.3%, a true-negative rate of 97.9%, a false-positive rate of 2.1%, and a false-negative rate of 0.7%. The average minimum detectable concentration (Cm) of mitragynine that reproducibly yielded a match for one of the library spectra on all five instruments was determined to be 342 ng/mL (ppb). This Cm value is a conservative estimate considering that the extraction process was not fully optimized by this study, which was not necessary since the Cm value achieved was well below typical mitragynine concentrations in kratom (1.3–2.3%). The method is ideal (i) for prioritizing samples for additional testing using other more time-consuming laboratory-based techniques needed to detect and quantify mitragynine and (ii) for field use at international mail facility (IMF) satellite laboratories to help interdict kratom and prevent this dangerous product from reaching the U.S. supply chain.  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