期刊文献+
共找到71篇文章
< 1 2 4 >
每页显示 20 50 100
我国国股行二永债利差及收益率研究
1
作者 贾知青 刘超 《债券》 2024年第3期34-38,共5页
我国6家国有商业银行和12家股份制商业银行(国股行)是商业银行二级资本债和商业银行永续债(二永债)的发行主力。本文分析了国股行二永债一级市场发行情况、二级市场换手率和流动性情况,发现信用利差是国股行二永债利差的主要影响因素。... 我国6家国有商业银行和12家股份制商业银行(国股行)是商业银行二级资本债和商业银行永续债(二永债)的发行主力。本文分析了国股行二永债一级市场发行情况、二级市场换手率和流动性情况,发现信用利差是国股行二永债利差的主要影响因素。之后,基于市场基准利率和短期资金流动性指标建立了国股行二永债收益率的多元线性模型,并研究了不同指标对国股行二永债的影响程度,发现国开债收益率是国股行二永债的领先指标。研究结论对于发行人和投资者具有一定的参考意义。 展开更多
关键词 国股 二永债 信用利差 多元线性模型
下载PDF
国股指期货的风险及对策
2
作者 段天石 《商情》 2012年第38期47-47,241,共2页
国股指期货的风险及对策。
关键词 国股 期货 风险
下载PDF
形天神话源于仇池山考释——兼论“奇股国”、氐族地望及“武都”地名的由来 被引量:35
3
作者 赵逵夫 《河北师范大学学报(哲学社会科学版)》 2002年第4期43-49,共7页
形天是开题氏的祖先;“开题”即“形题”,也即“雕题”或“形天”。形天神话的背景在今甘肃西和县仇池山、洛峪镇一带,“奇股国”乃“形天与帝争神”之地。“奇股国”、“武都”之义大体相当,其得名与形天有关。
关键词 形天神话 仇池山 “奇 考释 “武都”
下载PDF
壮药“国虾薄”(绞股蓝)碱水解产物对A549细胞的抑制活性 被引量:3
4
作者 朴香兰 陈道金 +1 位作者 刘慧敏 杨静 《中央民族大学学报(自然科学版)》 2014年第1期60-64,共5页
本文比较了绞股蓝(Gynostemma pentaphyllum)碱水解前后的正丁醇提取物对肺癌A549细胞的抑制活性.方法:绞股蓝叶用12倍量的80%乙醇超声提取3 h,正丁醇萃取,90℃碱水解反应6 h,利用HPLC分析方法,分析了绞股蓝碱水解前后的正丁醇提取物中... 本文比较了绞股蓝(Gynostemma pentaphyllum)碱水解前后的正丁醇提取物对肺癌A549细胞的抑制活性.方法:绞股蓝叶用12倍量的80%乙醇超声提取3 h,正丁醇萃取,90℃碱水解反应6 h,利用HPLC分析方法,分析了绞股蓝碱水解前后的正丁醇提取物中色谱峰的变化,并对它们进行肺癌A549细胞的抑制活性检测.结果发现碱水解使绞股蓝中的成分有转化,而且绞股蓝的碱水解产物对肺癌A549细胞的抑制活性显著增强.从而证实,碱水解可使绞股蓝成分发生转化,并且增强了对肺癌A549细胞的抑制活性,为绞股蓝有效成分的转化提供实验依据. 展开更多
关键词 非小细胞肺癌 虾薄(绞蓝) 细胞凋亡 壮医 碱水解
下载PDF
壮药“国虾薄”(绞股蓝)热处理产物抗肺癌的有效成分研究进展 被引量:1
5
作者 陈道金 朴香兰 《食品安全质量检测学报》 CAS 2013年第2期333-338,共6页
细胞凋亡通路受阻是导致肿瘤发生、发展及产生耐药性的主要原因,通过死亡受体信号转导途径和线粒体途径诱导细胞凋亡,是近年来发现的抗肿瘤治疗的主要机制。壮药"国虾薄"通三道两路,具有清热解毒的作用其热处理产物具有很强... 细胞凋亡通路受阻是导致肿瘤发生、发展及产生耐药性的主要原因,通过死亡受体信号转导途径和线粒体途径诱导细胞凋亡,是近年来发现的抗肿瘤治疗的主要机制。壮药"国虾薄"通三道两路,具有清热解毒的作用其热处理产物具有很强的抑制非小细胞肺癌(NSCLC)A549细胞增殖活性,并诱导细胞凋亡。但其有效成分尚不明确,作用机制尚不清楚。本文介绍了细胞凋亡通路、壮医药抗肿瘤基本理论、热处理方法在天然药物中的应用、壮药"国虾薄"(绞股蓝)的生物活性及其热处理产物抗NSCLC有效成分研究。 展开更多
关键词 非小细胞肺癌 虾薄(绞蓝) 细胞凋亡 壮医
下载PDF
基于股东控制权的国有限售股减持模式研究
6
作者 王旭 《经济师》 2010年第2期99-100,共2页
国有限售股包括来源于股权分置改革之前的存量国有限售股和来源于股权分置改革实施"新老划断"之后的增量国有限售股。"新老划断"之后国有限售股呈现动态化、常态化新特点。针对国有限售股的新特点,文章从国有控股... 国有限售股包括来源于股权分置改革之前的存量国有限售股和来源于股权分置改革实施"新老划断"之后的增量国有限售股。"新老划断"之后国有限售股呈现动态化、常态化新特点。针对国有限售股的新特点,文章从国有控股股东的角度,以法律制度所确认的股东控制权为依据,对国有限售股减持模式作出全局性、框架性的探讨。 展开更多
关键词 东控制权 有限售 减持模式
下载PDF
政企分开:让工人集体作为企业所有者 被引量:4
7
作者 刘恒中 《改革》 CSSCI 北大核心 2000年第1期47-56,共10页
关键词 政企分开 工人集体 国股企业 有资本
下载PDF
Four New Record Species of the Cohort Uropodina (Acari:Mesostigmata) from China
8
作者 贝纳新 李寒松 +2 位作者 陈万鹏 周雪 殷绥公 《Entomotaxonomia》 CSCD 北大核心 2010年第2期157-160,共4页
Four new record species of the cohort Uropodina from China are described and figured,they are Dinychus undulatus Sellnick,Dinychus septentrionalis(Trgrdh),Discourella baloghi Hirschmann et Nicol Z.and Discourella mode... Four new record species of the cohort Uropodina from China are described and figured,they are Dinychus undulatus Sellnick,Dinychus septentrionalis(Trgrdh),Discourella baloghi Hirschmann et Nicol Z.and Discourella modesta(Leonardi).All the specimens were collected from the Changbai Mountain,Jilin Province.All measurements are given in microns(μm). 展开更多
关键词 ACARI MESOSTIGMATA UROPODINA new record China
下载PDF
股[月国]动脉闭塞的外科治疗
9
作者 倪冷 刘昌伟 《国际外科学杂志》 2007年第12期841-843,共3页
股[月国]动脉段是下肢缺血最常累及的部位。针对股[月国]动脉闭塞的治疗,以往主要以旁路手术为主,近些年来,随着介入技术及材料的日益发展,旁路手术已逐渐被创伤较小的腔内介入取代,且多数随机对照试验证实,两者在远期通畅率及生... 股[月国]动脉段是下肢缺血最常累及的部位。针对股[月国]动脉闭塞的治疗,以往主要以旁路手术为主,近些年来,随着介入技术及材料的日益发展,旁路手术已逐渐被创伤较小的腔内介入取代,且多数随机对照试验证实,两者在远期通畅率及生存率方面无显著差别。在临床实践中,应根据具体的病变特点及预期生存时间选择个性化的治疗方案。 展开更多
关键词 [月]动脉闭塞 旁路手术 重建性介入
原文传递
壮药“国虾薄”(绞股蓝)热处理产物中人参皂苷Rg_3的分离与鉴定 被引量:5
10
作者 邢韶芳 陈道金 +1 位作者 刘慧敏 朴香兰 《中国实验方剂学杂志》 CAS 北大核心 2014年第9期120-124,共5页
目的:分离、鉴定国虾薄(绞股蓝)热处理产物中皂苷类化合物。方法:国虾薄在温度125℃、压力0.24 MPa的条件下,加热处理3 h,用80%乙醇加热回流提取3 h,通过大孔树脂HP-20、硅胶柱及反相柱色谱等分离手段对其热处理产物进行分离,并用离子... 目的:分离、鉴定国虾薄(绞股蓝)热处理产物中皂苷类化合物。方法:国虾薄在温度125℃、压力0.24 MPa的条件下,加热处理3 h,用80%乙醇加热回流提取3 h,通过大孔树脂HP-20、硅胶柱及反相柱色谱等分离手段对其热处理产物进行分离,并用离子阱飞行时间质谱(LCMS-IT-TOF)、核磁共振波谱(NMR)等数据鉴定其成分。结果:从壮药国虾薄热处理产物中首次分离获得20(S)-人参皂苷Rg3和20(R)-人参皂苷Rg3两种不同构型的稀有人参皂苷。结论:通过热处理的方法能从国虾薄中分离得到人参皂苷Rg3,这为人参皂苷Rg3的制备提供了一个新思路。 展开更多
关键词 虾薄(绞蓝) 热处理 人参皂苷RG3
原文传递
A New Species of the Genus Oplitis (Acari:Uropodina) from China
11
作者 陈万鹏 贝纳新 +1 位作者 高萍 殷绥公 《Entomotaxonomia》 CSCD 北大核心 2008年第4期309-312,共4页
In this paper, a new species of the genus Oplitis Berlese, 1884, namely Oplitis tielingensis sp. nov. from Longshou Mountain, Tieling City, Liaoning Province, China is described and figured. The new species is similar... In this paper, a new species of the genus Oplitis Berlese, 1884, namely Oplitis tielingensis sp. nov. from Longshou Mountain, Tieling City, Liaoning Province, China is described and figured. The new species is similar to Oplitis yuxini Ma, 2001. The type specimens are deposited in the College of Protection, Shenyang Agricultural University. 展开更多
关键词 ACARI UROPODINA Oplitis new species China
下载PDF
STUDY OF REENGINEERING THE STOCK EQUITY STRUCTURE IN CHINESE STATE-OWNED ENTERPRISE REFORM
12
作者 朱秀文 杨嘉钦 《Transactions of Tianjin University》 EI CAS 2001年第2期86-92,共7页
In this paper,it is first briefly described the basic situation and current policies of state owned enterprise reform in China.Then the major issues in the reform process are identified,the possible solutions in term... In this paper,it is first briefly described the basic situation and current policies of state owned enterprise reform in China.Then the major issues in the reform process are identified,the possible solutions in terms of reengineering stock equity structure and state share circulation are discussed,and finally some suggestions are made for the further state owned enterprise reform.Basing on the theory on the modern corporation system,relevant experiences of market economy nations and the practice of Chinese enterprise system reform.The approaches to determine the proportion of state share in the future corporations are proposed.Since the public ownership is not ideologically appropriate,the establishment of social security fund and mutual fund investment companies are suggested as new and acceptable pattern of public ownership.It is believed that these companies will be the major institutional shareholders in the future corporations.Their stock equity structure would mainly consist of institutional shareholders,which will be both consistent with international norms of modern corporations and with socialist public ownership with Chinese characteristics. 展开更多
关键词 state owned enterprise corporation system reform stock equity structure institutional investors
下载PDF
The Extent of Voluntary Information in the Annual Report and the Share Price Volatility: Application of DEA and SFA on the French Market 被引量:2
13
作者 Amal Hamrouni, Hermann Ratsimbanier 《Journal of Modern Accounting and Auditing》 2012年第7期951-966,共16页
In the current paper, the authors investigate empirically the relationship between the share price volatility and the amount of voluntary information disclosed in the corporate annual report. The authors use the data ... In the current paper, the authors investigate empirically the relationship between the share price volatility and the amount of voluntary information disclosed in the corporate annual report. The authors use the data envelopment analysis (DEA) and the stochastic frontier analysis (SFA) models on a sample of 50 listed French firms belonging to the Soci6t6s des Bourses Fran^aises (SBF250) index from 2004 to 2008. The authors focus on the extent of voluntary disclosure in the annual reports that have been measure by using a composite disclosure index. Then, the authors study the relevance of disclosure policies through the ability of the voluntary disclosure level to effectively reduce the share price volatility. The findings of DEA and SFA provide, in average, highly efficient scores of the sample, reveal the several dispositions taken by the French Exchange Market authorities and the initiative of French firms to improve the market stability. In addition, the findings highlight, in average, stability of the firms' efficiency scores over the studied period. The authors explain these findings by the stability of corporate disclosure policy as suggested in previous literature (e.g., Botosan, 1997). However, there are some differences between the findings of SFA and DEA models. 展开更多
关键词 share price volatility corporate disclosure voluntary information stochastic frontier efficiency dataenvelopment approach
下载PDF
Application of otolith shape analysis for stock discrimination and species identification of five goby species(Perciformes: Gobiidae) in the northern Chinese coastal waters 被引量:3
14
作者 于鑫 曹亮 +3 位作者 刘金虎 赵博 单秀娟 窦硕增 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2014年第5期1060-1073,共14页
We tested the use of otolith shape analysis to discriminate between species and stocks of five goby species( Ctenotrypauchen chinensis, Odontamblyopus lacepedii, Amblychaeturichthys hexanema, Chaeturichthys stigmatias... We tested the use of otolith shape analysis to discriminate between species and stocks of five goby species( Ctenotrypauchen chinensis, Odontamblyopus lacepedii, Amblychaeturichthys hexanema, Chaeturichthys stigmatias, and Acanthogobius hasta) found in northern Chinese coastal waters. The five species were well differentiated with high overall classification success using shape indices(83.7%), elliptic Fourier coefficients(98.6%), or the combination of both methods(94.9%). However, shape analysis alone was only moderately successful at discriminating among the four stocks(Liaodong Bay, LD; Bohai Bay, BH; Huanghe(Yellow) River estuary HRE, and Jiaozhou Bay, JZ stocks) of A. hasta(50%–54%) and C. stigmatias(65.7%–75.8%). For these two species, shape analysis was moderately successful at discriminating the HRE or JZ stocks from other stocks, but failed to effectively identify the LD and BH stocks. A large number of otoliths were misclassified between the HRE and JZ stocks, which are geographically well separated. The classification success for stock discrimination was higher using elliptic Fourier coefficients alone(70.2%) or in combination with shape indices(75.8%) than using only shape indices(65.7%) in C. stigmatias whereas there was little difference among the three methods for A. hasta. Our results supported the common belief that otolith shape analysis is generally more effective for interspecific identification than intraspecific discrimination. Moreover, compared with shape indices analysis, Fourier analysis improves classification success during inter- and intra-species discrimination by otolith shape analysis, although this did not necessarily always occur in all fish species. 展开更多
关键词 GOBIES inter- and intra-specific identification otolith morphology elliptic Fourier analysis shape indices
下载PDF
Stock Repurchase and the Role of Signaling: A Comparative Analysis between U.S. and China
15
作者 HUANG Hong ZHOU Zhong-guo 《Journal of Modern Accounting and Auditing》 2007年第2期56-62,共7页
This paper compares different methods used for stock repurchase and examines the role of signaling in the U.S. and China's capital markets. We find that the ways to buyback stocks are very different in the two countr... This paper compares different methods used for stock repurchase and examines the role of signaling in the U.S. and China's capital markets. We find that the ways to buyback stocks are very different in the two countries. Most U.S. stocks are repurchased through open market and the signals sent to the market through open market repurchase are getting weaker. Even though stock repurchases are at their early stage in the Chinese stock market and the dominated way to buyback is through a negotiated repurchase agreement for non-floating shares, the power of signaling seems much stronger. Examining stock prices pre- and post-repurchase, we find that stock repurchase records an average abnormal return of 3.42% on the announcement date and 3.24% on the date of actual renurchase. 展开更多
关键词 stock repurchase open market repurchase negotiated repurchase SIGNALING
下载PDF
Post-issuance related party transaction: Evidence of tunneling
16
作者 CHEN Rong-jie 《Journal of Modern Accounting and Auditing》 2008年第8期1-4,8,共5页
The distortion of corporate financing in China stock markets is not only reflected as the significant increase of leverage after rights offering, but also the large amount of post-issuance related party transactions b... The distortion of corporate financing in China stock markets is not only reflected as the significant increase of leverage after rights offering, but also the large amount of post-issuance related party transactions between the parent SOEs and their subsidiaries. This paper examines the three channels, including accounts receivables, direct loan and loan guarantee. Empirical findings suggest that high frequency of these transactions after rights offering, and the amount of transactions increase as ownership concentration increases, which support the argument of tunneling. 展开更多
关键词 TUNNELING related party transaction
下载PDF
Share-Shift Analysis of Geo-Economic Pattern on Global Cereal Crops in Recent 50 Years
17
作者 Zhao Xia Feng Zhming +1 位作者 Li Peng Yang Yanzhao 《Chinese Journal of Population,Resources and Environment》 2011年第1期71-77,共7页
In recent 50 years, with the rapid development of international food trade, the geoeconomic pattern of cereal crops has changed tremendously which produced a significant impact on global food security. This paper atte... In recent 50 years, with the rapid development of international food trade, the geoeconomic pattern of cereal crops has changed tremendously which produced a significant impact on global food security. This paper attempted to analysis the production pattern and trade pattern of global cereals, especially three main crops of wheat, maize and rice by using the method of share-shift. Given the fact of almost every economic phenomenon is driven by their economic return behind them, this paper attempted to a further step into their economic pattern by examining their net trade flow. The results showed that from the view of production and trade, the geographic pattern of global cereals has changed greatly which can be described as developing countries has replaced developed countries and become the world's biggest cereals production and trading area. But when moving to the net trade flow, it turns out to be another story that can depicted as the regional fixation features of economic returns which can be convinced from the labor division of global cereals trade, among which developed countries acts as net trade profit area while developing countries as net trade output area, and their gap between net export and net import has been widening from the view of evolution trend. So what we learn from the evolution of geoeconomic pattern on this topic is that our place in global cereals trade system, and therefore alert us to concern not only on the pattern transition but also the economic meaning behind it, only by doing so can we learn to plan our food future more wisely and effectively. 展开更多
关键词 cereal crops economic-geographical pattern share- shift GLOBAL
下载PDF
Incentive and Entrenchment Effects of Large Shareholdings: Evidence from Chinese Public Corporation
18
作者 XIE Jun 《Journal of Modern Accounting and Auditing》 2007年第2期31-34,40,共5页
This paper studies incentive effect and entrenchment effect of the largest shareholder. Author investigates 763 listed companies in SHSE, explores the statistical relationship between the largest shareholding and corp... This paper studies incentive effect and entrenchment effect of the largest shareholder. Author investigates 763 listed companies in SHSE, explores the statistical relationship between the largest shareholding and corporate performance. Author observes that the largest shareholder has the incentive effect and entrenchment effect on corporate valuation. Empirical relationship between the largest shareholding and corporate valuation shows that the firm value decreases with the equity ownership of the largest shareholders, consistent with a negative entrenchment effect, when the largest equity ownership is below 40.28% of the whole share. Then firm value rises when the proportion of the largest shareholder's rights was increased to 69.29%, being consistent with a positive incentive effect. But with the increase of the share of the largest shareholding, firm value falls again. 展开更多
关键词 the largest shareholder incentive effect entrenchment effect corporate valuation
下载PDF
Testing for long memory in Chinese stock market
19
作者 YU Jun 《Chinese Business Review》 2007年第6期53-58,共6页
This paper proposes a long memory analysis based on wavelet transform of financial data. This method treats return series and volatility series in the stock market as a fractional differenced noise process, and analyz... This paper proposes a long memory analysis based on wavelet transform of financial data. This method treats return series and volatility series in the stock market as a fractional differenced noise process, and analyzes it by MODWT(maximal overlap discrete wavelet transform). The result shows there is a lineal relationship between wavelet variance logarithm and scale logarithm, so a long memory parameter can be obtained by using the relationship. This method is proved to be effective and feasible by analyzing the return series and volatility series of composite indexes of Shanghai and Shenzhen stock market. 展开更多
关键词 wavelet transform long memory fractional differenced noise (FDN)
下载PDF
A new radiolarian species Clathrocorys gracilis from northern South China Sea
20
作者 王金宝 李新正 谭智源 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2005年第1期118-120,共3页
A new species, Clathrocorys gracilis nov. spec., of Tripocyrtidae (Radiolarians: Nassellaria) from surface water in northern South China Sea, is described in this paper. The new species has four radial beams arising f... A new species, Clathrocorys gracilis nov. spec., of Tripocyrtidae (Radiolarians: Nassellaria) from surface water in northern South China Sea, is described in this paper. The new species has four radial beams arising from the cephalic base centre, each foot with cup-shaped structure and ramified bar in the proximal section (near cephalic base), and each wing with a large mesh in the middle, a medium mesh and a small mesh on each side respectively. 展开更多
关键词 Clathrocorys gracilis nov. spec. new species RADIOLARIA South China Sea
下载PDF
上一页 1 2 4 下一页 到第
使用帮助 返回顶部