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排序方式: 共有363条查询结果,搜索用时 31 毫秒
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企业成长性综合评价方法的实证研究 总被引:3,自引:0,他引:3
从盈利能力状况、资产运营状况、偿债能力状况、投资报酬状况、发展潜力状况五个方面选择了十六个财务指标评价我国上市公司的成长性;同时,选取2004年沪深两市的上市公司为研究样本,采用因子分析的方法对研究样本进行了分析,并得出了企业成长性综合评价模型。通过对研究样本按照EVA是否大于0分组,采用独立样本t检验的方法,验证企业成长性综合评价模型具有实际应用价值。 相似文献
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Hansen PE 《Mathematical Population Studies》1989,2(1):37-67
A review of the Leslie matrix model theory and its literature 1941-1987 is presented. The point of view is that of a mathematician who focuses on the parts of the theory which are relevant to demography. Works of a decidedly applied nature are not dealt with. 相似文献
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Peo Hansen 《Intercultural Education》1998,9(1):5-23
This article aims to explore how the role of education as an aide in the process of “European” identity formation is being articulated in the European Union's (EU) policy of “The European dimension of education”. After having located the EU's views on education in the context of the neo‐liberal discourse on economic globalization, the article goes on to trace EU discussions of the European dimension of education historically. Subsequently, it deliberates on the understanding of European culture and identity which the European dimension of education endeavours to advance. Here a critique is developed of the policy's ethno‐culturalism, thereby excluding delineation of a collective identity in the EU. Basing itself on a notion of cultural identity which, implicitly, includes only those who fit certain versions of European historical “roots” and cultural “heritage”, the policy, it is argued, impedes a discussion of how a trans‐ethnic identity formation could be created in today's EU. Towards the end of the article, a scrutiny of the European dimension's perception of the so‐called “language diversity” in the EU seeks to illustrate this issue further. 相似文献
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This paper explores the experiences of immigrant women with visual impairment in the Greater Toronto and Hamilton Area (GTHA) of Canada. Conceptually, the paper draws from feminist disability theory and critical scholarship on blindness to consider the discursive and material processes shaping women’s experiences across different socio-cultural contexts. Empirically, the paper draws from in-depth interviews with seven women. The analysis is organized around three themes. The first explores women’s understandings of visual impairment. The second examines the ways in which women’s experiences of visual impairment are shaped by meanings and attitudes that circulate within their cultural communities, and the extent to which immigration might challenge or reinforce these meanings. The third examines the shifting barriers and opportunities women face with respect to social and economic participation. We close by identifying the conceptual implications of our research. 相似文献
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劝工大楼事件发生后,上海官方与百货业职业工会就事件定性在媒体上进行针锋相对的论争.在事件处理过程中,百货业职业工会拒绝执行政府规定、动员店职员开展以国民政府为对象的抗暴斗争,展现出相当强的政治自主意识和组织能力.中国共产党对店职员的宣传动员、国民党政权合法性的逐渐丧失、构建职业生活正当性的内在诉求衍生出与国家政权“对抗、斗争”的工会形象. 相似文献
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Bruce E. Hansen 《Econometric Reviews》2016,35(8-10):1456-1470
This article compares the mean-squared error (or ?2 risk) of ordinary least squares (OLS), James–Stein, and least absolute shrinkage and selection operator (Lasso) shrinkage estimators in simple linear regression where the number of regressors is smaller than the sample size. We compare and contrast the known risk bounds for these estimators, which shows that neither James–Stein nor Lasso uniformly dominates the other. We investigate the finite sample risk using a simple simulation experiment. We find that the risk of Lasso estimation is particularly sensitive to coefficient parameterization, and for a significant portion of the parameter space Lasso has higher mean-squared error than OLS. This investigation suggests that there are potential pitfalls arising with Lasso estimation, and simulation studies need to be more attentive to careful exploration of the parameter space. 相似文献
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关于为人民服务的提出,人们的认识过程经历了一元到多元的变化,即一开始普遍认为"为人民服务"的明确表述始于毛泽东,后来随着有关资料的公布又出现了蒋介石提出说,近期又发现了更早的朱德提出说。但不管怎样,都无法改变这样一个事实,即毛泽东为人民服务的思想贯彻了其自身的一系列理念,并从《为人民服务》演讲开始逐渐将之明确为中共及其领导的革命军队的根本宗旨。这种内涵上的丰富和完善,以及将为人民服务作为党的宗旨的独特定位,是毛泽东留给后人的宝贵精神财富,是其他任何人都难以比拟的。 相似文献