Tuan Nguyen

This paper studies the connection between social media addiction and mental disorder from the existing investigation among undergraduate students. A comprehensive document search was conducted by using six electronic databases, including PubMed, Scopus, ScienceDirect, Web of Science, JSTOR, ProQuest Education to identify articles published before November 21st, 2019. All collected papers focused on studying social media addiction and psychosis. Two reviewers individualistically evaluated the quality of the study by using the Joanna Briggs Institute’s approach. Five articles were filtered out through the screening process and included in the review. The high prevalence of social addiction among college students (9.7% ~ 41%) has been clarified. The association between social media addiction and mental disorders is positive for student health. This article contributes to raising awareness and finding solutions to these risk problems. The study also confirms the connection between online shopping addiction and eating disorders among social addicts. We also discuss the causes and harms of social media addiction.

Through analyzing policy and regulatory documents as well as in-depth interviews with experts, this study aims to address two research purposes. First, inspired by Europe's institutional autonomy scorecard, this study aims to introduce a similar one that appropriates to the Vietnam’s context. Vietnam's scorecard also has four dimensions as like the European one, these are: academic, organizational, staffing and financial. Nevertheless, the differences include: (i) the selection of specific indicators corresponding to each dimension of the scorecard; and (ii) the scoring system of the autonomy level pertaining to each indicator. These differences reflect the local attributes of Vietnam which are dissimilar to the European context. Second, Vietnam's institutional autonomy scorecard would be adopted to measure the levels of autonomy regarding four types of universities in Vietnam: (i) Vietnam national universities; (ii) autonomous public universities; (iii) regular public universities; and (iv) private universities. Findings of this study does not only provide implications for Vietnamese policymakers and institutional leaders but also stakeholders in other countries. We encourage scholars in other countries to employ a similar approach to develop scorecards that are appropriate to their local contexts.

Using a nationwide survey of provincial institutional quality and a sample of private manufacturing small and medium scale enterprises, this paper contributes to the literature by considering for the first time the effects of corruption on the financial performance of Vietnamese private SMEs. Interestingly, contrary to previous findings, we find that corruption when measured by a dummy variable, does not affect firms’ financial performance after controlling for heterogeneity, simultaneity and dynamic endogeneity. However, the intensity of bribery and the majority of the forms of corruption were found to have negative impacts on firms’ financial performance. Hence, a typical approach using only a dummy variable for bribery might not adequately evaluate the impact of bribe intensity or even ignores the negative impacts of some types of bribes on firms’ financial performance. The findings suggest that anti-corruption measures are vital for the development of the Vietnamese private SMEs.

Using a nationwide survey of provincial institutional quality and a sample of private manufacturing small and medium scale enterprises, this paper contributes to the literature by considering for the first time the effects of corruption on the financial performance of Vietnamese private SMEs. Interestingly, contrary to previous findings, we find that corruption when measured by a dummy variable, does not affect firms’ financial performance after controlling for heterogeneity, simultaneity and dynamic endogeneity. However, the intensity of bribery and the majority of the forms of corruption were found to have negative impacts on firms’ financial performance. Hence, a typical approach using only a dummy variable for bribery might not adequately evaluate the impact of bribe intensity or even ignores the negative impacts of some types of bribes on firms’ financial performance. The findings suggest that anti-corruption measures are vital for the development of the Vietnamese private SMEs.

This paper introduces a novel method to control the operation of the active suspension system. In this research, a quarter-dynamic model is used to simulate the vehicle’s vibrations. Besides, the sliding mode-PID-integrated algorithm with five state variables is proposed to be used. This is a completely original and novel algorithm. The process of establishing the control algorithm is clearly described. The simulation is performed by the MATLAB software. The results of the paper have shown the advantages of the sliding mode-PID algorithm used in this research. Accordingly, the displacement and acceleration of the sprung mass were significantly reduced when this algorithm was used. The maximum and average values of the displacement of the sprung mass are only 1.31% and 1.29%, respectively, compared with the situation of the vehicle using a passive suspension. Similarly, the value of the acceleration is 6.98% and 2.94%, respectively. In addition, the phenomenon of “chattering” has also been significantly reduced when using this controller. In the future, some more complex algorithms can be proposed.

This chapter investigates gender differences in the prevalence of and the factors associated with abuse among Vietnamese older people. Utilizing the 2011 Vietnam Aging Survey, a nationally representative survey on aging in Vietnam, we found that the prevalence of elder abuse was higher for older women than for their male counterparts, but there were no gender differences in the likelihood of being abused in multiple logistic regression models for the full sample, controlling for other factors. However, for gender stratification samples, we observed gender differences in the factors associated with the probability of being abused. Specifically, locality of residence, financial contribution to the household, the number of children, and household income were important factors determining the likelihood of being abused for older men, while marital status and education were more important predictors of elder abuse for older women. Findings of this chapter provide empirical evidence based on the determinants of elder abuse, which are largely unexplored in Vietnam. This chapter also highlights the need for policies to tackle issues related to abuse at old ages in order to achieve healthy aging.