管理咨询业发展的影响因素分析   总被引：4，自引：0，他引：4  

计洋 《情报科学》2004,22(4):431-434

管理咨询业是市场竞争的产物，它对经济的发展有着很大的影响，本文对国内外管理咨询业的发展状况进行了简要的介绍，并对影响其发展的几种因素进行了探讨。  相似文献   

企业技术开发的风险原理与防范研究   总被引：4，自引：0，他引：4  

江兵  张承谦 《研究与发展管理》2002,14(5):49-54

对企业技术开发风险原理进行了理论探讨,设计出风险因素体系,通过专家咨询分析其影响程度,指出企业应重点防范的风险因素,建立由企业、社会和政府组成的技术研究开发风险的三维防范体系。  相似文献   

公司治理与财务困境预测   总被引：2，自引：0，他引：2  

黄善东  杨淑娥 《预测》2007,26(2):63-67

本文在分别借助因子分析和非参数检验方法对公司财务指标和治理因素进行统计处理的基础上,构造并实证检验了用于预测我国上市公司财务困境的两大模型,即仅是包含财务信息与融合财务信息和公司治理因素的Logistic回归预测模型。实证结果表明,作为通过了非参数检验的公司治理因素之关键特征变量——第一大股东派出董事比例,不但与公司发生财务困境的概率之间呈现显著的负相关关系,而且能够显著提高包含该变量的预测模型的回判和预测准确率。因此,公司治理信息应当是利于预测我国上市公司是否可能发生财务困境的重要因素。  相似文献   

A man on the inside: Unlocking communities as complementary assets     

Linus Dahlander 《Research Policy》2006,35(8):1243-1259

Since Teece's seminal paper explaining who were the gainers from technological innovation, increased globalization and the information and communication technology revolution have brought new ways for firms to organize and appropriate from innovation. A new more open model of innovation suggests that firms can benefit from sources of innovation that stem from outside the firm. The central theme of this paper is how firms try to unlock communities as complementary assets. These communities exist outside firm boundaries beyond ownership or hierarchical control. Because of practices developed by communities to protect their work, firms need to assign individuals to work in these communities in order to gain access to developments and, to an extent, influence the direction of the community. Using network analysis we show that some software firms sponsor individuals to act strategically within a free and open source software (FOSS) community. Firm sponsored individuals interact with more individuals than interact with them, and also they seek to interact with central individuals in the community. However, we can see differences in how individuals interact, depending on whether their affiliation is with a dedicated FOSS firm or an incumbent in the software industry. Apparently, some firm managers believe they need ‘a man on the inside’ to be able to gain access to communities.  相似文献   

安庆发展开放型经济的战略选择     

薛泽洲 《安庆师范学院学报(社会科学版)》2005,24(6):15-18,76

安庆山川秀美,地处皖鄂赣三省交界处,是中国历史文化名城,国际资本和产业转移的理想之地,担当着实现安徽在中部崛起的重任,面临发展开放经济的难得机遇。安庆发展开放型经济,要创新体制发挥后发优势,锻造工业化脊梁,加快东向发展的步伐,提升招商引资水平。  相似文献   

The development of the nature of science view scale (NOSvs) at university level     

Senar Temel  Şenol Şen  Özgür Özcan 《Research in Science & Technological Education》2018,36(1):55-68

Background: Determining individuals’ views of the nature of science is quite important for researchers since it is both a component of scientific literacy and a fundamental aim of science education.

Purpose: This study aims to develop a NOSvs for assessing prospective teachers’ views of the nature of science and to analyse their psychometric properties.

Sample: A total of 565 prospective teachers participated in the study.

Design and methods: The Kaiser–Meyer–Olkin (KMO) Index and Bartlett’s Sphericity Test were used in this study. Confirmatory factor analysis (CFA) was performed to determine the construct validity of the scale. Cronbach’s Alpha (α) coefficient was calculated for the reliability of the study.

Results: It was consequently found that the KMO was larger than .50. That Bartlett’s Sphericity Test was also statistically significant. The items with item-total correlations smaller than .30 were removed from the scale. Cronbach’s α values calculated for each sub-scale were above .70. In consequence of the first CFA performed, fit indices were found to be below the expected level. For this reason, three more items with the least item-total correlations were removed from the scale. Following the CFA, the final form of the scale included 36 items and five sub-scales.  相似文献   

Effect of high glucose levels on the calcification of vascular smooth muscle cells by inducing osteoblastic differentiation and intracellular calcium deposition via BMP-2/Cbfα-1 pathway     

Liu F  Zhong H  Liang JY  Fu P  Luo ZJ  Zhou L  Gou R  Huang J 《Journal of Zhejiang University. Science. B》2010,11(12):905-911

In this paper,we investigate the effect and the possible mechanism of high glucose levels on the calcification of human aortic smooth muscle cells (HASMCs).HASMCs were divided into four groups: normal glucose group (NG),osmolality control group (OC),high glucose group (HG,HASMCs culture medium containing 30 mmol/L glucose),and high glucose plus recombinant human Noggin protein (bone morphogenetic protein-2 (BMP-2) antagonist) group (HN).The mRNA levels and the protein expressions of BMP-2 and core binding factor alpha-1 (Cbfα-1) were measured by real-time quantitative polymerase chain reaction (PCR) and Western blot.After induced by 10 mmol/L β-glycerol phosphoric acid,cells were harvested for assessments of alkaline phosphatase (ALP) activities at Days 1,2,and 3,and intracellular calcium contents at Days 7 and 14,respectively.High glucose levels increased the mRNA levels and the protein expressions of BMP-2 and Cbfα-1 (P0.05).The expression of Cbfα-1 was partially blocked by Noggin protein (P0.05),while BMP-2 was not (P0.05).After being induced by β-glycerol phosphoric acid,high glucose levels increased the ALP activity [(48.63±1.03) vs.(41.42±2.28) U/mg protein,Day 3;P0.05] and the intracellular calcium content [(2.76±0.09) vs.(1.75±0.07) μmol/mg protein,Day 14;P0.05] in a time-dependent manner when compared with the NG group,while the ALP activity could not be blocked by Noggin protein [(48.63±1.03) vs.(47.37±0.97) U/mg protein,Day 3;P0.05].These results show that high glucose levels can evoke the calcification of HASMCs by inducing osteoblastic trans-differentiation and intracellular calcium deposition via the BMP-2/Cbfα-1 pathway,which can be partially blocked by Noggin protein.  相似文献   

Examining Chi-Square Test Statistics Under Conditions of Large Model Size and Ordinal Data     

Dexin Shi  Christine DiStefano  Heather L. McDaniel  Zhehan Jiang 《Structural equation modeling》2018,25(6):924-945

This study examined the effect of model size on the chi-square test statistics obtained from ordinal factor analysis models. The performance of six robust chi-square test statistics were compared across various conditions, including number of observed variables (p), number of factors, sample size, model (mis)specification, number of categories, and threshold distribution. Results showed that the unweighted least squares (ULS) robust chi-square statistics generally outperform the diagonally weighted least squares (DWLS) robust chi-square statistics. The ULSM estimator performed the best overall. However, when fitting ordinal factor analysis models with a large number of observed variables and small sample size, the ULSM-based chi-square tests may yield empirical variances that are noticeably larger than the theoretical values and inflated Type I error rates. On the other hand, when the number of observed variables is very large, the mean- and variance-corrected chi-square test statistics (e.g., based on ULSMV and WLSMV) could produce empirical variances conspicuously smaller than the theoretical values and Type I error rates lower than the nominal level, and demonstrate lower power rates to reject misspecified models. Recommendations for applied researchers and future empirical studies involving large models are provided.  相似文献   

浅谈中学语文课外阅读教学     

张伟浩 《宁波教育学院学报》2004,6(4):74-76

中学语文教学应让学生更多地直接接触语文材料,在大量的语文实践中掌握运用语文的规律。教师要加强阅读指导,提高阅读的质量。提倡开放性阅读教学,选取开放的教学内容。  相似文献   

博客在电大开放教育辅助教学平台中的思考     

龙苗 《职教探索与研究》2007,(2)

博客(Blog)作为一种新的网络媒体,和BBS及网站比起来有其自身的优点。根据博客独特的优点与电大开放教育的特色,对博客作为辅助教学的手段进行了有益的实践和探索,并就辅助教学过程中存在的问题进行了反思,在实践的基础上认为,博客作为电大开放教育辅助教学的手段是可能并且可行的。  相似文献