动物对温度适应的分子生物学研究进展

动物对环境温度的适应,会使自身的细胞内转录和表达模式发成变化,以适合环境的变化,此时它会出现新的基因开放和新蛋白因子的合成,这总的来说是动物对自身的一种保护方式。本文从基因水平、蛋白质水平、细胞膜水平等三个方面综述了动物对环境温度适应的研究概况,并讨论了动物对环境温度适应的分子生物学机制以及在进化中的意义。     

中华礼仪文明教育活动模式实践探索

中华礼仪文明教育活动是人文素质教育的一种好形式。它能培养学生文明之举、敬畏之心、感激之情和奋发之志。开展中华礼仪文明教育活动应体现知行结合原则、学生主体地位、教师指导作用、教育规律和学生成长规律。     

浅谈宏观经济学教学内容改革方案

现如今的宏观经济学教学内容普遍存在过度西化和偏重理论的不足,使培养应用型人才的实现加大了难度.中国改革开放的实践为宏观经济学教学内容改革提供了诸多方案,而教学手段、教学指导文件、科研、教学案例、教学体系等方面则是教学内容改革所必须包括的.     

以过程为导向的《标识设计课程》教学新模式探析

介绍了基于过程化教学的标识设计教学新模式：根据标识设计内容的难易程度，组织循序渐进的教学内容；根据标识设计中技术到思想的难度，对相应的教学知识点进行对接，设计阶梯式的训练课题；根据标识设计内容构成的实践性特点，强化实践教学环节，针对每一个课题设计不同的实践方法，实现课堂与实践之间跨度的融合与穿插。     

Local cuisines and destination marketing: cases of three cities in Shandong,China

This study analyzes how the three cities of Jinan, Qingdao, and Qufu in Shandong Province of China use their cuisines in promoting their destinations. Based on a critical review of previous studies, a conceptual framework was developed, which included five closely related areas: foods, beverages, dining, farming, and food festivals. All related texts, images, videos, brochures, booklets, and websites designed to market these three cities were content-analyzed. The study findings suggest that all the three cities have not yet fully utilized their cuisines in their destination marketing efforts. Although some of their culinary resources appear in their marketing materials, the local cuisines of these three cities are not yet skillfully integrated into their marketing efforts. The present study offers specific theoretical and practical implications on marketing the culinary resources of destinations that are in the early stages of their development.     

The business model and balanced scorecard in creative tourism: the ultimate strategy boosters

Despite the various studies on creative tourism, little managerial frameworks such as a business model and a balanced scorecard are investigated for this new phenomenon. The overall image that emerges from the literature is ambiguous and fuzzy. Also, many activities known as creative tourism experiences may provide new participative experiences but rarely include a creative process. This study covers a whole aspect in designing a feasibility test model for creative experiences based on balanced scorecard through qualitative content analysis and as the essence of that, a Business Model by content validity and clustering analysis. Analysis of data by the mentioned methods reveals that four perspectives and 13 critical success factors are essential for the feasibility of a creative tourism experience. In addition, 22 indicators in 3 main dimensions determine the success of a creative tourism business model. This study is part of a growing body of research focused on discovering hidden aspects of creative tourism.     

多气源掺混作为城市燃气过渡气源在实际中的应用

为了解决青岛市煤气供需不平衡的矛盾,为引进天然气作好前期准备,我公司将多种气源(焦炉煤气、焦炉烟道气、空气、全水煤气、半水煤气、液化石油气、石化厂净化干气)均匀掺混,掺混后的煤气热值控制在15 675～17000 kJ/m3(适合青岛市燃具),含氧量不大于4.0%.通过实际应用,多气源掺混供气,满足了供气需要,可以作为过渡气源满足城市燃气转换成天然气的需要.     

Two new proofs of Afriat’s theorem

Summary. We provide two new, simple proofs of Afriats celebrated theorem stating that a finite set of price-quantity observations is consistent with utility maximization if, and only if, the observations satisfy a variation of the Strong Axiom of Revealed Preference known as the Generalized Axiom of Revealed PreferenceReceived: 12 June 2003, Revised: 9 October 2003, JEL Classification Numbers: D11, C60.Correspondence to: A. Fostel     

A Note on the Joint Distribution of α, β-Percentiles and Its Application to the Option Pricing

In this paper, using Laplace transform, we will calculate the joint density of twopercentiles of stock prices in the Black–Sholes model and make the price of exchange options of such twopercentiles.     

Estimating the term structures of corporate debt

This paper investigates the corporate bond market by estimating monthly interest rate term structures for investment grade credit classes using both S&P's and Moody's ratings. Term structures are modeled by a piecewise constant forward rate curve and estimated on noncallable coupon paying bonds issued by industrial firms. The iterative estimation algorithm minimizes the sum of squared errors between market prices and model prices while identifying and removing outliers from the sample. Although the forward rate model is successful at pricing corporate debt, additional factors are found to be significant at explaining the residual price error that remains after the forward rate model is fit to market prices. Six necessary no-arbitrage conditions are derived for the term structures of risky and risk-free debt. Occasionally, some of these no-arbitrage conditions are violated and a few violations are asymptotically statistically significant. Finally, trading strategies that capture mispricing in the corporate debt market and violations of no-arbitrage bounds are discussed.This paper was adapted from my dissertation, completed at Cornell University. An earlier version of this paper was titled The Term Structures of Corporate Debt. Thanks to participants at the Cornell University finance workshop, Warren Bailey, Peter Carr, Antoine Giannetti, and especially Robert Jarrow for their helpful comments.