Understanding preservice physical education teachers’ teacher identity

Quality physical education programs are essential in preventing childhood obesity, and its implementation depends on the quality of preservice physical education teachers (PPETs) who may develop a strong teacher identity in physical education. However, existing research in PPET-TI is very sparse. This study aimed to examine the essential elements of PPET-TI and the psychometric properties of the scale measuring PPET-TI. Two studies were conducted using a mixed-methods research design. In study 1, semi-structured interviews were conducted with 19 PPETs. Three essential themes were identified: self-definition of roles and projected professional positions, teaching goals, and professional responsibilities for self-growth and changing the physical education profession. In study 2, survey items were developed based on results from study 1 and a literature review, which were evaluated by 10 experts to establish content validity. A survey of 26 items was distributed to 552 PPETs’ to examine validity and reliability. Confirmatory factor analysis and model specification revealed an adequate model fit to the data for a 17-item PPET-TI Scale consisting of three domains: self-definition, teaching goals, and professional responsibilities. Convergent validity, criterion validity, and discriminant validity of the scale scores were also adequate. The scores of the PPET-TI Scale showed an acceptable internal consistency (Cronbach’s alpha = .91 for the entire scale). It is recommended to use the PPET-TI Scale for PPET recruitment, PETE program effectiveness evaluation, and PETE curriculum improvement. Future studies may use the PPET-TI Scale to identify influencing factors of identity development.Curriculum and Instructio

The Influence of Emotional State on Mobile Phone Addiction Tendency in College Students: The Mediation Role of Regulatory Emotion Self-efficacy

In order to explore the situation of college students’ emotional state, regulatory emotion self-efficacy and mobile phone addiction tendency as well as their relationships, a total of 350 college students were assessed with Mobile Phone Addiction Tendency Scale (MPATS), Positive Affect and Negative Affect Scale (PANAS) and the Scale of Regulatory Emotional Self-efficacy (SRESE). The result showed that: (1) 40.86% of college students had the tendency of cell phone addiction, which was serious; 72.0% of college students were in a positive emotional state, 22% were in a negative emotional state; college students' regulatory emotion self-efficacy was in the middle level; (2) there was no gender, grade, major type, household registration type (rural and urban) and whether only child difference in mobile phone addiction tendency; (3) the positive emotions of college students were negatively correlated with the tendency of mobile phone addiction, while the negative emotions were positively correlated with the tendency of mobile phone addiction, and the positive emotion was positively correlated with regulatory emotional self-efficacy；(4) the regulatory emotion self-efficacy had a partial mediating effect between the positive emotions and mobile phone addiction tendency and had no mediating effect between the negative emotions and mobile phone addiction tendency.

Assessing Customer-Based Brand Equity of E-Commerce Platform Based on Promotion Benefits

The prosperity of e-commerce in China leads to large amount of businesses venturing into this marketplace. Sales promotion has been widely used to improve their advantage, while platform-based sales promotion has been confirmed more successful. This research examines the impacts of the benefits of sales promotions based on electronic commerce platforms on customer-based brand equity (platform brand awareness and platform brand association) and how their relationships are moderated by the promotion type (pre- and post-purchase promotion). Based on the two functions of sales promotions (stimulation vs. maintaining), we propose a five-benefit framework including exploration, convenience, savings, social bonds and structural bonds. We suggested that both the two types of sales promotion could provide the five benefits of sales promotions and the positive effects of the benefits on consumer-based brand equity might be significant, while the differences between pre- and post-purchase sales promotions could be also significant

The Impacts of Environmental Cues and Browsing Experience on Impulse Buying on Social Shopping Website

Based on the stimulus-organism-response (S-O-R) paradigm, this study develops a model to theorize how environmental cues on social shopping website affect impulse buying behavior from the perspective of browsing experience. Social shopping websites bring a novel online browsing experience for customers. However, how browsing experience on this platform affect customers impulsively have received insufficient academic attention. The results reveal that the unique factors of social shopping website, namely the quality of user-generated content and social presence are critical for facilitating customers’ browsing experiences. The results also show that both utilitarian browsing and hedonic browsing experience have a positive impact on customers’ urge to buy impulsively. The theoretical and managerial implications are discussed

Role of Danmu Function in User Experience and Engagement: A Double-edged Sword

Digital video sites currently seek new ways to build a platform to encourage user engagement and enable users to connect with one another through multiple means and channels. The widespread introduction of danmu technology has aroused concerns of academia. However, comparatively little work has been done to explicate the role of danmu function and research progress has been falling behind practical interest. In this study, we seek to investigate user experience and engagement to understand the double-side effect of danmu technology. Using S-O-R framework, we propose that danmu features, namely proximity and coherence, play essential roles in creating augmentation experience of para-social interaction and degradation experience of goal impediment and information overload. Additionally, we investigate user experience to understand user engagement in the danmu-enabled situation. We suggest that para-social interaction will elicit increased user engagement; yet goal impediment and information overload will lead to less user engagement

Potential determinants of RMB exchange rate

Classificação JEL: F31, G17Como a maior economia emergente no mundo, a China e a sua economia têm atraído muitas atenções a nível mundial. Como tal, a análise do comportamento da taxa de câmbio do renminbi (RMB) é de elevada relevância. Com efeito, as instituições financeiras e outros investidores de uma forma geral podem gerir de forma mais eficaz o risco que assumem com a volatilidade da taxa de câmbio do RMB, se conhecerem de forma rigorosa os efeitos dos fatores relevantes sobre esta taxa de câmbio. Este trabalho apresenta uma análise empírica dos determinantes da taxa de câmbio do RMB, o que ajuda a identificar os principais motores que explicam as alterações nesta taxa de câmbio. Os resultados mostram que os diferenciais de taxas de inflação, das balanças comerciais, e das taxas de crescimento do PIB entre a China e os EUA estão positivamente relacionados com a taxa de câmbio do RMB face ao USD . Por seu turno, os diferenciais de taxas de juro entre a China e os EUA, as reservas cambiais da China, bem como a reforma financeira ocorrida na China em 2005 , estão negativamente relacionados com a taxa de câmbio do RMB face ao USD.With the largest emerging economy in the world, China and its economy have been raising great attention world wide. In this respect, analyzing the behavior of RMB exchange rate is of crucial significance. In fact, financial institutions and investors in general can manage effectively the risk they take due to the volatility of the RMB exchange rate against the USD, by knowing accurately the effects of the relevant factors on the foreign exchange rates. This work comprises an empirical analysis of determinants of the RMB exchange rate, which helps to identify the most relevant drivers that explain the changes of the RMB exchange rate. The results show that the differentials of inflation rates, trade balance, and GDP growth between China and US are positively related to the RMB exchange rate. In turn, interest rates differential between China and US, foreign exchange reserve of China, and the financial reform of China in 2005 are negatively related to RMB exchange rate against the USD

Influence of installation deviation on dynamic performance of synchronous magnetic coupling

To improve dynamic characteristics of synchronous magnetic coupling, this paper mainly analyzed the influence of the installation deviation on the synchronous magnetic coupling’s dynamic performance used in the horizontal axis wave energy power generation device. Dynamic characteristics equations based on Lagrange equation are built in the paper to analyze the dynamic characteristic of synchronous magnetic coupling. The radial deviation, the angle deviation and the center-of-mass deviation are considered in the equation. The influence of those installation deviations on the synchronous magnetic coupling performance is analyzed based on the mathematical model. The results show that the rise time, the overshoot, the peak time, the adjusting time and the oscillation of the synchronous magnetic coupling are almost not affected by those installation deviations