《国际集装箱运输》情景实验教学系统研究

提出了引入"情景实验"教学法的构想,在明晰了"情景实验"教学系统构建思路的基础上,对该系统的网络结构、体系架构、硬件选择和软件功能等进行了初步设计,并以本校"情景实验"教学系统的应用实效,展示了该系统对《国际集装箱运输》课程教学和学生实践能力的促进与提升作用。     

浅谈理工科分析化学实验课程教学改革

本文介绍在分析化学实验教学中,培养学生独立查阅相关文献,设计相关实验,锻炼学生思维能力和动手能力,提高学生分析问题、解决问题的能力,为培养全面型化学化工人才提供有力保障。     

不同需求规律下的航材安全库存量研究

安全库存是有效处理航材供应过程中遇到的各种突发情况的重要保证,针对航材需求量波动变化的实际情况,对航材安全库存量开展了深入研究。首先,研究了不同航材类型及其安全库存量需求的特点;其次,分析了航材需求分布类型,进而研究了不同需求量变化规律的确定方法;然后,研究建立了不同需求量规律下的航材安全库存量的确定方法;最后,通过算例验证了方法的可行性和有效性,为飞机制造商和航空公司的航材管理提供了有效方法和切实指导。     

中学化学玻璃仪器的洗涤

在化学实验中,洗涤玻璃仪器不仅是一项必须做的实验前的准备工作,也是一项技术性的工作。     

Donor recognition: A double-edged sword in charitable giving

Previous studies discover confounding results on how donor recognition affects individual charitable giving. To answer the questions of how different donor recognition schemes affect individual giving and what type is more effective as a marketing strategy to meet different fundraising goals, we conducted a field experiment in China with three donor recognition types: voluntary, involuntary, and mandatory donor recognition. We used social media to recognize donors and verified the field experiment results with naturally occurring data. We observed similar behavioral patterns in both samples. The results of this study explain the mixed results from previous studies, suggesting that there is no one-size-fits-all approach for recognizing donors. Decision makers of nonprofit organizations need to select the appropriate type of donor recognition based on their fundraising goals.     

Price of High‐quality Daycare and Female Employment

Using local variation between municipalities, I analyze the degree to which the price of high‐quality publicly subsidized childcare affects female employment following maternity leave. Importantly, prices are income dependent and thus likely endogenous, yet by exploiting information on minimum income compensation during non‐employment, I bypass this problem. The results show that the price negatively affects employment. A price increase of €1 per month decreases employment by 0.08%, which corresponds to a price elasticity of −0.17. These effects prevail during the first 12 months after childbirth. I also find that availability of childcare increases employment.     

Identifying significant characteristics of organic milk consumers: a CART analysis of an artefactual field experiment

The organic dairy category is one of the fastest growing categories of organic foods in the US. Organic milk consumers generally cite perceived health benefits and lower risk of food contamination, as well as perceived superior quality and environmental sustainability of organic farming methods, as the major motivations for preference of organic over conventional milk. While the attributes of organic milk that are valued by consumers are fairly well-known, more ambiguity exists regarding the demographic characteristics of the typical organic milk consumer. This research makes use of experimental data from 148 adult participants and use a Classification and Regression Tree (CART) analysis, a nonparametric modelling approach, to identify how Willingness-to-Pay (WTP) for organic milk varies with the demographic profile of experiment participants. The study finds that perceived taste of organic milk, concern for the risk of consuming conventional milk, being a primary shopper, and the quantity of milk consumed are the major factors that separate experiment participants into groups with high and low WTP for organic milk.     

Time-varying parameters in the almost ideal demand system and the Rotterdam model: will the best specification please stand up?

This article assesses the ability of the Rotterdam Model (RM) and of three versions of the Almost Ideal Demand System (AIDS) to recover the time-varying elasticities of a true demand system and to satisfy theoretical regularity. Using Monte Carlo simulations, we find that the RM performs better than the linear-approximate AIDS at recovering the signs of all the time-varying elasticities. More importantly, the RM has the ability to track the paths of time-varying income elasticities, even when the true values are very high. The linear-approximate AIDS, not only performs poorly at recovering the time-varying elasticities but also badly approximates the nonlinear AIDS.     

Job preferences of students and new graduates in nursing

This article investigates the preferences of student and newly graduated nurses for pecuniary and nonpecuniary aspects of nursing jobs. It is the first study applying methods based on discrete choice experiments to a developed country nursing workforce. It is also the first to focus on the transition through university training and into work. This is particularly important as junior nurses have the lowest retention levels in the profession. We sample 526 individuals from nursing programmes in two Australian universities. Flexible and newly developed models combining heteroscedasticity with unobserved heterogeneity in scale and preference weights are estimated. Overall, salary remains the most important feature in increasing the probability that a job will be selected. ‘Supportive management/staff’ and ‘quality of care’ follow as the most important attributes from a list of 11 nonpecuniary characteristics. However, the subset of new graduates rank ‘supportive management/staff’ above salary increases, emphasizing the importance of a supportive workplace in the transition from university to the workplace. We find substantial preference heterogeneity and some attributes, such as the opportunity for clinical rotations, are found to be attractive to some nurses while seen as negative by others. Nursing retention could be improved by designing different employment packages to appeal to these different tastes.     

Textbook Treatments of the Financial Market in the IS-LM Model

Intermediate macroeconomics textbooks introduce financial markets into the IS-LM analysis but typically as a beginning-of-period consideration. Here the financial market is introduced in an end-of-period model.