乙酰乙酸乙酯银镜反应的研究

作者对乙酰乙酸乙酯与托伦试剂的反应进行了研究,用气相色谱法确定了反应产物及产率。实验表明,乙酰乙酸乙酯确能进行银镜反应,主要产物为乙酸。     

Themes and Trends of Journal of Family and Economic Issues: A Review of Twenty Years (1988–2007)

This review article examines the progress and impact of the Journal of Family and Economic Issues (JFEI) between 1988–2007. Over the past 20 years, JFEI has become a major journal publishing articles on the relationship between families and economic systems. JFEI contributed to both the economic and family studies disciplines by publishing articles that explore the interface of these two disciplines. Between 1988 and 2007, JFEI published articles on a variety of themes not often found in other economic or family studies journals such as family resource management, consumer attitudes and behaviors, and economic issues and family relationships. Other unique characteristics of JFEI include many collaborative multidisciplinary studies and many studies analyzing international or cross-cultural samples.     

浅谈人教版新旧教材中“氧化还原反应”的设计与教学

本文对新旧人教版两种高中化学必修教材中有关“氧化还原反应”这部分内容，从课标的比较、教材编排、教材的内容及栏目设计进行对比分析，阐述了作者对新教材的几点认识．     

Modeling collecting behavior: The role of set completion

Collecting is a complex behavior that has been studied from a variety of different perspectives. Art objects, stamps, coins, and other established collectibles markets, have been shown over the years to provide some degree of return to the collector in the economics literature. Wonderment over the success of certain collectibles such as Swatch watches and Beanie Babies has received much attention in the popular press. But how does one rationally explain the collecting of matchbook covers, Cracker Jacks toys, belt buckles, salt cellars, Aunt Jemima, etc.? Collecting in the absence of financial gain has received little attention in the economics literature. In the social psychology literature, many individuals are understood to have a natural desire to collect things for various reasons. Financial gain is only one of those reasons. Set completion is another. The reasons for collecting are not always mutually exclusive. For example, a complete set may be worth more in the secondary market, if one exists, than the sum of the individual pieces. This reflects the value of the rarest pieces and the opportunity costs of obtaining them. The model presented in this study explains how set completion motivates collecting behavior, which sheds light on collecting for both financial and nonfinancial reasons. The model accommodates both collectors and noncollectors and illustrates how consumption behavior may vary accordingly. Insight into how manufacturers of collectibles can use this behavior for commercial exploitation is explored.     

一个生化反应模型的极限环唯一性

本文研究了一个仅为两个种类细胞反应的生物化学反应系统。证明了此系统只存在唯一稳定的极限环,从而发展了文献〔5〕的结果。     

负面网络消费者评论及商家回复对潜在消费者的影响

品牌归因与传播者归因对消费者购买意愿产生不同的影响.网络购物过程中高质量的负面消费者评论能够使潜在消费者产生较高水平的品牌归因,从而降低消费者的购买意愿.而商家针对高质量负面网络消费者评论的有效回复,可以取代负面评论而成为主导信息,降低消费者的品牌归因水平,进而提升购买意愿.网络消费者差评和商家回复同时存在时,针对一致性维度和区别性维度都可以使回复信息更加受到消费者的重视,从而作为潜在消费者信息处理过程的主导信息.同时,消费者的品牌归因水平还受到个人涉入度的影响.     

N80 钢/SiO2 基涂层/油井水泥石的界面特征研究

为了提高固井一界面的胶结强度,采用热化学反应法在N80 钢制套管钢基体上制备SiO2 基陶瓷涂层作为套管和水泥石之间的过渡层。通过X 射线衍射结构分析、扫描电子显微镜和体视显微镜形貌观察以及划痕仪涂层结合力测试,研究了N80 钢/SiO2 基涂层/油井水泥石的界面微观结构特征和结合行为。结果表明,陶瓷涂层内部和陶瓷涂层/水泥石界面分别产生了新相MgAl2O4 和Ca54MgAl2Si16O90;陶瓷涂层与钢基体结合力的临界载荷在40 N 左右,陶瓷涂层的制备起到了提高套管与水泥石结合强度的作用。     

传导机制·行为反应:兼论我国财政政策的有效性

财政政策的有效性取决于传导机制,尤其是传导机制中微观主体的反应及其行为调整,财政政策工具的有效性是体制约束、微观主体数量、消费倾向、预算约束、信息传递效率与政策工具作用时间的函数。在此基础上,我们重新解释了积极财政政策失灵的原因,并对稳健的财政政策工具选择问题进行了初步探索。     

近代日本消费需求变动的因素分析

长期影响近代日本消费需求变动的因素主要有四个方面:国民经济的不断增长和国民收入的不断提高是近代日本消费需求逐渐上升的物质基础和前提条件;近代工矿交通事业的发展,使国民收入分配格局朝着有利于劳动的方向转变,这是促进近代日本消费需求不断上升的积极力量;人口规模及其构成的变动是近代日本消费需求不断上升的重要推动力量;消费的示范效应、攀比行为和不可逆行为对消费需求不断上升起着一定的推动作用。     

许明：审美学理的比照解读

美的认知结构包含美的客体系统、美感反应系统,由此对康德的纯粹美与依存美进行学理阐析。康德建构了德国美学体系,作出了巨大贡献,但其学理内核是主观唯心主义的。这就制造了封闭式的终端格局。许明在其《美的认知结构》中,突破了美的主体性与客体性以及两极化封闭格局,走出了这一困域误区,作出了某些相应的局部性超越,其论述表现为四个维度及相对应的理念。