民办院校有机化学实验多元化教学模式探索

民办院校把有机化学实验作为有机化学教学的重要组成部分,多元化教学模式主要从教学方法与手段、教学内容、学习方式、考评体系等方面进行多元化教学模式探索。建立以微课视频、翻转课堂、问题引导,依托基础性实验、综合型实验和创新型实验,依托多元化信息化的教学手段雨课堂、虚拟仿真情景模拟实验、超星尔雅平台,融合多种教学方法,结合“线下”翻转课堂,建立多元化教学模式。这种多元化教学模式能有效提高学生的学习主动性和创新能力。     

Tradeoffs between sensory attributes and organic labels: the case of orange juice

Researchers have investigated the role of sensory attributes and organic labels on consumers’ preferences and perceptions of food, but few has examined whether sensory attributes are relevant for consumers who prefer organic food and the extent to which sensory attributes influence consumer's marginal willingness to pay for organic food. The objective of this study is to determine how sensory attributes and organic label work together to influence consumer's stated preference and marginal willingness to pay for orange juice. To achieve this, we conducted a blind sensory evaluation of two orange juices followed by a discrete choice experiment to determine the extent to which consumer's stated preference for orange juice labelled as organic is affected by sensory experience preceding the choice experiment. Random parameter logit models and latent class conditional logit models are used to explain stated preference. Results indicate that the effect of sensory attributes on consumer's marginal willingness to pay differed by organic juice and conventional juice.     

基于桌面云的实验教学平台的构建

本科实验教学课程是本科教学的重要组成部分,传统实验教学中心的模式已不能适应计算机软件专业的发展和需求。本文针对传统实验教学平台存在的问题,充分利用桌面云技术的优势,构建基于桌面云的实验教学平台。该平台面向实验教学过程的各个环节,涉及到实验室的管理、学生上机实验的考勤和管理、实验教学镜像的制作、服务器集群的监控等过程。学生可通过本文构建的桌面云实验教学平台按需自助的通过云终端获取实验资源,从而最大化满足学生对学习资源的需求。同时该平台有利于教师教学资源及教学成果的共享,从而提高实验教学的质量,促进学院学科建设的发展。     

Modelling Risk Perceptions of Stakeholders in Public–Private Partnership Toll Road Contracts

This paper investigates the risk perceptions of key stakeholder groups typically involved in public–private partnership (PPP) toll roads. Risk perceptions have an important impact on these PPP schemes for investing in public infrastructure. However, the nature and extent of risk associated with the specification of a PPP contract that commits contracting parties to deliver on their obligations remain unclear. In the context of major transport infrastructure, such as a new toll road, the often‐cited key risk to investors is the traffic (and hence demand) risk. There are, however, other risks, including political risk and media risk, the latter often causing untold harm resulting in modifications to the planned infrastructure. This paper develops a method to capture evidence on how public sector and private sector partners involved in previous PPPs perceive the levels of risk associated with each risk attribute, as a way of identifying the ex ante risk setting brought to negotiations in PPP toll road investments. Using a sample of 101 experts with contract experience in 32 countries, we develop a stated choice experiment and estimate a discrete choice model to quantify a risk profile index (RPI) to capture the perceived (relative) influence of each dimension of risk, and then identify sources of systematic differences in the RPI as a way of understanding the influence of personal traits and contextual and contractual factors.     

Can Pokémon GO catch brands? The fit effect of game characters and brands on efficacy of brand communications

Given the recent popularity of augmented reality (AR) games, such as Pokémon GO, this study explores the congruence effect of game characters and brands on brand evaluations and the underlying mechanisms of the effect. Prior gaming experience and motivations are taken into account. An experiment reveals that inexperienced gamers are likely to have more favorable evaluations of the target brands when the images of game characters match the brand images, whereas these effects disappear for experienced gamers. Furthermore, the research demonstrates that experienced gamers are more likely to hold game-specific motivations than the inexperienced, while inexperienced gamers are motivated more by social interaction for playing AR games. Lastly, a mediation analysis reveals that social interaction-related motivation mediates inexperienced gamers’ preference of character–brand congruence. This study sheds light upon how AR games can be utilized by brand communicators.     

中学生物实验现状的调查与分析

《生物课程标准》的颁布以及现代社会的发展要求,对实验提出了更高的要求和标准。那么当前的中学生物实验又是一个什么状况呢?为此笔者开展了一系列实际情况调查。     

Look but Don’t Touch! The Impact of Active Interpersonal Haptic Blocking on Compensatory Touch and Purchase Behavior

This research investigates situations in which frontline employees deliberately restrict customers’ access to touch products on display (active interpersonal haptic blocking), and how this understudied form of sensory blocking may increase customers’ downstream purchasing. While previous research examines the benefits of increased product touch, we temporarily block touch for specific products in display areas and then investigate the subsequent impact on customer behavior. Through four studies, including a retail field experiment, we find that when an employee asks a customer not to touch a product on display, this initiates a serial mediation process which: (1) engenders feelings of psychological reactance that result in (2) increased compensatory touching of subsequently encountered products to counterbalance a loss of sensory freedom, and (3) increased spending and purchasing once the customer leaves the reactance-inducing encounter. Effects are moderated by socioeconomic status (SES) and need for touch (NFT) whereby psychological reactance was significantly stronger for high SES customers with a moderate or high NFT when actively blocked. Results also demonstrate that active interpersonal haptic blocking does not result in more negative attitudes toward retailers, thus retailers might consider implementing this counterintuitive practice to encourage downstream sales.     

实践论下的理论与实验相融合模式研究——以《多传感器信息融合技术》课程为例

基于多媒体技术开发了多传感器信息融合实验平台,利用该平台将理论与实验在时间和空间上做到真正的融合。该平台集多源信息融合领域的新理论和新算法于一体,便于学生全面、系统的学习和实践。实践表明:通过丰富而生动的实验,学生对繁杂而艰深的理论知识获得了直接、客观而形象的认识,理论与实验的融合激发了学生们的学习热情和积极性,提高了科技创新能力。     

Determinants of consumer demand for circular economy products. A case for reuse and remanufacturing for sustainable development

We investigate determinants of consumer demand for circular (reused and remanufactured) products. Based on exploratory choice-based conjoint experiments with a sample of 800 adults in the United Kingdom, we examine two types of premium segment electronic appliances: a mobile phone and a robot vacuum cleaner. We find that consumers prefer partly circulated products over fully or not at all circulated products and that circular products can likely successfully enter the existing market at the retail price of a new product. Interestingly, circular products compete for market share primarily with new products, leaving the market share of second-hand options less affected. The results show a promising path for firms considering a transition to circular business models.     

Discouraging Rainforest Transformation: An Ex-ante Policy Impact Analysis

Despite extensive efforts made by national and international certification agencies, Indonesian smallholder farmers’ participation in palm oil certification schemes adoption remains low. A fundamental obstacle is the smallholder practice of rainforest transformation into oil palm plantation which is forbidden by the agencies. In this context, we investigate three policies that could lead to a reduction in rainforest deforestation by smallholders: price premium on certified palm oil; the provision of environmental information; contributor recognition. In order to evaluate the influence of the policies ex-ante, we conduct a social dilemma experiment involving rubber and oil palm smallholders in Jambi Province, Sumatra, Indonesia. The findings indicate that the price premium and provision of context-specific environmental information could reduce rainforest transformation. However, a statistically significant effect of contributor recognition was not found.