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   212篇
  免费   14篇
各国政治   22篇
工人农民   8篇
世界政治   2篇
外交国际关系   51篇
法律   41篇
中国共产党   3篇
中国政治   18篇
政治理论   9篇
综合类   72篇
  2024年   2篇
  2023年   2篇
  2022年   5篇
  2021年   14篇
  2020年   32篇
  2019年   10篇
  2018年   6篇
  2017年   8篇
  2016年   10篇
  2015年   7篇
  2014年   28篇
  2013年   17篇
  2012年   3篇
  2011年   9篇
  2010年   6篇
  2009年   11篇
  2008年   5篇
  2007年   11篇
  2006年   10篇
  2005年   10篇
  2004年   5篇
  2003年   7篇
  2002年   2篇
  2001年   5篇
  1984年   1篇
排序方式: 共有226条查询结果,搜索用时 15 毫秒
121.
《Science & justice》2023,63(4):485-492
In forensic examination accurate estimation of post-mortem interval (PMI) is a challenging task, particularly in the advanced stages of decomposition. The existing methods (algor mortis, livor mortis, rigor mortis, putrefaction etc) used for estimating PMI rely on analyzing the physical, biochemical, and metabolic changes that occur in the corpse after death. While these methods have shown some level of effectiveness in estimating PMI during the early stages of decomposition, accurate estimation becomes increasingly challenging during the later stages of putrefaction when the body undergoes significant changes. Recently, microRNA (miRNA) profiling due to its relatively small size and stability has emerged as a promising tool in several areas of forensics. This study demonstrates the potential of miRNA for PMI estimation in advanced stages of death. In this study, miRNA-195, miRNA-206, and miRNA-378 were selected as target miRNAs and miRNA-1 as reference miRNA. Left ventricle tissue (5 g) of the heart from 20 forensic autopsies of traffic accident victims (18–32 years) were collected and processed. The samples were held at room temperature for eight different time intervals (12, 24, 48, 72, 96, 120, 168 and 196 h), and RNA was extracted from all the samples using Trizol-based RNA isolation protocol, followed by cDNA synthesis and amplification with commercially available specific miRNA probes in Real-Time PCR (RT-PCR), Ct was calculated. The result showed that miRNAs were associated with PMI. Over time, there were substantial changes in the Ct values of all three miRNAs, with significant reductions observed at 196 h compared to 12 h. miRNA-206 demonstrated significant changes at multiple time intervals, while miRNA-1 remained stable for up to 196 h and thus holds caas an endogenous marker. In conclusion, miRNA has the potential to serve as a valuable tool for estimating PMI, especially during the advanced stages of decomposition, when used in conjunction with established techniques. However, further validation of the study is required to obtain more accurate estimates of PMI.  相似文献   
122.
气候变化及其一系列影响使得南海周边部分国家的海岸线倒退,岛礁面临被淹没的威胁,这将会使沿海国的领海、毗连区、专属经济区等海域的范围改变。南海海域已存在海洋权益矛盾和海权争端,加之气候变化这一变量因素,局势将会更为复杂与严峻。“21世纪海上丝绸之路”建设是我国与南海周边国家建立共同发展战略的新举措,在这一新形势下,我国应加强与南海周边国家合作应对气候变化,逐步实现共赢。本文将阐述气候变化对南海海域及周边国家的影响,梳理该区域国家应对气候变化的合作进程,分析目前存在的问题并提出相关建议。  相似文献   
123.
当代西方较有代表性的几种社会主义流派中,对政府角色的定位各不相同;在同一种社会主义思潮的不同阶段,对政府角色的理解也在随着现实情况的变化而发生着变迁。探讨其中种种差异,对于我国现阶段政府的重新定位、职能的转换等问题的研究有一定的借鉴作用。  相似文献   
124.
The authors have conducted a statistical analysis of 340 court files investigated in the Forensic Medicine Department Medical University of Silesia, Katowice in the years 2003–2007 with regard to chances for as well as difficulties in giving medico-legal opinions on drivers’ alcohol intoxication levels, which would be valid for court purposes.  相似文献   
125.
中国特色社会主义工会发展道路与中国特色社会主义道路的关系是当前工会理论研究的重点课题,对于工会找准定位,发挥作用,推动中国特色社会主义发展至关重要。中国特色社会主义工会发展道路的性质和特色,决定于中国特色社会主义道路,其内容又丰富了中国特色社会主义的道路内容。  相似文献   
126.
Today, international taxation is at an inflection point. The implementation of action plan on base erosion and profit shifting (BEPS) and enforcement of the Belt and Road Initiative are reshaping taxation rules and principles. As a crucial aspect of outbound taxation, foreign tax credit is expected to embrace the normative objectives of the new era, which emphasize the importance of subjecting all trans-border business activities to equitable, efficient, and coordinated taxation. Currently, China’s foreign tax credit prescribes in an incompatible pattern; it lacks clear legislative intent, despite marking specific rules with archaic unilateral characters. To reform this regime, legislative principle should reflect the latest consensus on the economic activities’ nexus and ensure that the income derived from trans-border transactions falls under a minimum tax. Regarding specific rules, it is strongly suggested that active and passive incomes be distinguished and the equity holding threshold of obtaining indirect credit be lowered. China’s foreign tax credit reform should take an inclusive perspective, actively participating in the cooperation between countries.  相似文献   
127.
Surprisingly, perhaps, China’s flagship Belt and Road Initiative expresses a familiar mix of the security–development nexus and liberal interdependence thesis: Chinese leaders expect economic development and integration will stabilise and secure neighbouring states and improve inter-state relations. However, drawing on the record of China’s intensive economic interaction with Myanmar, we argue that the opposite outcome may occur, for two reasons. First, capitalist development is inherently conflict-prone. Second, moreover, China’s cross-border economic relations today are shaped by state transformation – the fragmentation, decentralisation and internationalisation of party-state apparatuses. Accordingly, economic relations often emerge not from coherent national strategies, but from the uncoordinated, even contradictory, activities of various state and non-state agencies at multiple scales, which may exacerbate capitalist development’s conflictual aspects and undermine official policy goals. In the Sino-Myanmar case, the lead Chinese actors creating and managing cross-border economic engagements are sub-national agencies and enterprises based in, or operating through, Yunnan province. The rapacious form of development they have pursued has exacerbated insecurity, helped to reignite ethnic conflict in Myanmar’s borderlands, and plunged bilateral relations into crisis. Consequently, the Chinese government has had to change its policy and intervene in Myanmar’s domestic affairs to promote peace negotiations.  相似文献   
128.
在当今世界经济中,旅游业是发展最快、对全球国内生产总值贡献较大的产业之一,已成为世界经济增长的重要动力。而旅游合作正在成为国家间双边及地区多边合作的重要方向。在最新的《2030年前白俄罗斯可持续社会经济发展战略》中,旅游业已被白俄罗斯确定作为国家经济发展的主要动力之一。尽管在基础设施、发展资金等方面还存在诸多困难,在国民经济贡献度、市场受欢迎程度、服务形式与水平等方面还存在诸多不足,但是其在资源、相关基础设施建设、政策支持等方面已具备较好的基础,发展前景广阔。中白旅游合作,在资源、政策、市场等方面已经具备了较好的合作条件。通过实施第三方市场联合开发、区域旅游集群建设、消费支付手段便利化以及创新产品宣传手段等措施,未来中白旅游合作有潜力成为继中白工业园之后中白间务实合作的又一亮点,进而成为“一带一路”合作框架下的新典范。  相似文献   
129.
自习近平成为中国领导人以来,在外交领域积极发挥关键性的领导作用,首脑外交已成为中国外交的最高形式。习近平外交思想强调党对外交工作的绝对领导,强调维护首脑对外交工作的核心领导。习近平主席对于中白合作的倡议得到卢卡申科总统的认同和支持,首脑外交已经成为中白“一带一路”合作快速发展的关键性因素。中白克服了空间距离远、产业合作条件不佳的困难,在白俄罗斯首都明斯克市郊建设中白工业园,并被纳入“一带一路”建设框架内,目前该项目的进展迅速。中国与白俄罗斯的“一带一路”合作是远高于一般意义上的经济合作,是一种基于政治互信的合作。从中白合作中我们得出一个结论:因势利导和差异性的合作形式是“一带一路”建设的新特点。“一带一路”绝不仅仅是一条交通物流走廊,更是一种全球经济合作的新模式,是中国参与经济全球化的一种制度创新。  相似文献   
130.
境外中资企业和谐劳动关系对“一带一路”建设意义重大。企业应熟悉投资环境,坚持合作共 赢原则;遵守法律法规,依法支付劳动报酬;为当地工会正常开展工作提供条件。同时还要关注中方员工入会、 社会保障问题,消除劳动关系纠纷隐患。境内总部工会通过与境外企业工会的交流,提升外籍员工的向心力凝 聚力。  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