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   261篇
  免费   13篇
各国政治   32篇
工人农民   10篇
世界政治   37篇
外交国际关系   31篇
法律   101篇
中国政治   7篇
政治理论   55篇
综合类   1篇
  2024年   3篇
  2023年   9篇
  2022年   3篇
  2021年   11篇
  2020年   19篇
  2019年   10篇
  2018年   22篇
  2017年   17篇
  2016年   21篇
  2015年   10篇
  2014年   9篇
  2013年   38篇
  2012年   3篇
  2011年   3篇
  2010年   5篇
  2009年   3篇
  2008年   8篇
  2007年   6篇
  2006年   5篇
  2005年   2篇
  2004年   3篇
  2003年   5篇
  2002年   8篇
  2001年   3篇
  2000年   6篇
  1999年   2篇
  1998年   5篇
  1997年   6篇
  1996年   2篇
  1995年   4篇
  1994年   1篇
  1993年   3篇
  1992年   4篇
  1991年   3篇
  1990年   2篇
  1989年   1篇
  1987年   1篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1980年   1篇
  1974年   1篇
  1973年   2篇
  1967年   1篇
排序方式: 共有274条查询结果,搜索用时 15 毫秒
121.
The city of Birmingham is home to a significant number of ethnic minorities. In 2004 it is estimated that almost a third of the city's one million people are of ethnic minority origin. How the city's institutions have responded to race equality issues is analysed in the light of the Stephen Lawrence Inquiry Report (1999) and the Race Relations (Amendment) Act 2000. Based on secondary analysis of documentary evidence and interviews with key actors, it is shown that ethnic minorities are disadvantaged in education, the labour market, and in relation to health and housing. It is argued that the local authority has made some genuine efforts to ensure that all its citizens are provided equality of opportunity; however, given the diversity and socio-economic polarity of the ethnic minorities in Birmingham, we conclude that race equality policies remain ineffective and a great deal more is required to ensure that ethnic minorities are treated equally as full British citizens.  相似文献   
122.
Terrorism is a complex issue and various researchers have identified numerous causes and conditions that generate or are capable of generating terrorism. In the last decade, terrorist attacks claimed 36,495 lives and injured 27,985 people in Pakistan as a result of 3,482 bomb blasts and 281 suicide attacks. The aim of this research was to establish the major risk factors generating terrorism, based on the opinions of security officials who dealt directly with the Pakistan security situation. Sixty-five causes identified from the literature and interviews with security officials were modeled and transformed into a questionnaire. A nationwide response from security officials who were directly involved in dealing with apprehended terrorists was obtained. The population was selected proportionately from high, medium, and low security zones of Pakistan. Out of 500 questionnaires sent, 103 valid responses were received. The results helped establish the 13 major risk factors associated with generating terrorism. It was observed that addressing these 13 major risk factors would mostly resolve the other minor risk factors as well. Findings of this research might be beneficial for countries affected by terrorism, and countries with prioritized and rationalized allocation of funds in their budgets for substantially overcoming terrorism.  相似文献   
123.
Zulfqar Khan 《Astropolitics》2013,11(2-3):185-204
Since the early 1960s, China has been enhancing national power and, in this regard, Chinese space capabilities play a pivotal role. Today, China is second among spacefaring counties, behind the United States, as a measure of human spaceflight, as well as in commercial and military satellite systems. Chinese space technology, in contrast to developed nations, is comparatively cost-effective; China is sharing it with developing nations for their space programs, consequently expanding the pool of spacefaring states. Most significantly, China’s nuclear, military, and space capabilities provide it with an opportunity to reassert itself as a global power, enhancing its strategic outreach and preventing adversaries from contemplating strategies against it.  相似文献   
124.
Social Justice Research - Despite the relevance and importance of distribution of rewards for group performance, especially groups with active faultlines, existing literature exploring these...  相似文献   
125.
Conventional dental age estimation relies on destructive methods such as sectioning and staining, which are unpreferable when the tooth is required for evidential or archeological preservation. MicroCT is a non-destructive, high-resolution imaging technique that allows for accurate morphometrical measurement. Although microCT technology has been applied in a variety of dental studies, studies focusing on dental age-related change and dental age estimation based on microCT imaging remain lacking. Based on the question: “How has microCT technology been applied in studying human age-related tooth morphological change and dental age estimation studies?”, the authors conducted a scoping review in accordance with the Arksey and O'Malley (2005) and the PRISMA-ScR guidelines. A literature search using five major scientific databases identified 452 articles, with 11 full-text articles being eligible to be included in the scoping review. Furthermore, 6 out of the 11 studies performed dental age estimation modeling. An overview of the parameters used in the selected articles revealed a variety of tooth characteristics, such as pulp cavity to whole tooth volume ratio, secondary dentin, as well as the diameter of root canal orifice. The findings of this scoping review highlight the extent microCT is used in studying dental age-related changes, as well as the effectiveness of microCT in dental age estimation studies. This review serves as a guide for future forensic odontology age estimation studies.  相似文献   
126.
Fingermarks are one of the most useful forms of evidence in identification and can provide generalized proof of identity in crime investigation. They are developed using various conventional powders. The novel nanopowder ZnO‐SiO2 was synthesized via the conventional heating method and characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), energy‐dispersive X‐ray (EDX) analysis, transmission electron microscope (TEM), and X‐ray diffraction (XRD). The mean particle size of ZnO‐SiO2 nanopowder calculated through TEM was 32.9 nm. The development of fingermarks was carried out by powder dusting and small particle reagent (SPR) methods. Powder dusting method was used for the development of latent fingermarks on various dry, nonporous, and semi‐porous surfaces. The SPR method was also applied to wet nonporous surface. The developed latent fingermarks using ZnO‐SiO2 nanopowder were found to have excellent quality with very clear third‐level ridges detail and had better visibility than commercially available white powder.  相似文献   
127.
The contemporary smart concepts of education signify a heavy role of blogging tools in digital learning environments that have a substantial effect on students' learning and satisfaction. This study aims to analyze the influence of students' four perceptions about blogging that is, perception of digital technology (PDT), perceptions of teaching and learning (PTL), perceptions of previous blogging experience (PBE), and perceived usefulness of blogging (PUB) on the frequency of blogging and then assesses the impact of the frequency of blogging on perceived satisfaction as well as perceived learning of students. For this purpose, the researchers conducted a quantitative study with a positivist approach in which the data were collected from 350 students in Anhui Province, China to conduct analysis of the proposed relationships. The results of the current study suggest that there is a positive impact of PDT, PTL, PBE and PUB on the frequency of blogging. It means that the positive perceptions of students towards digital technology, teaching and learning, previous bogging experience and usefulness of blogging result in higher frequency and use of blogging activity. It further indicates that the high frequency of blogging has ultimately a positive impact on perceived satisfaction and perceived learning. The discussion and findings of the current study have useful implications for theory and practice because they provide empirical evidence and theoretical guidelines about the role of blogging in perceived learning and satisfaction.  相似文献   
128.
129.
130.
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