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This study aims to numerically study the forced convection effects on a two-dimensional microchannel filled with a porous material containing the water/FMWCNT nanofluid. The upper and lower microchannel walls were fully insulated thermally along 15 per cent of their lengths at each end of the microchannel, with the in-between length being exposed to a constant temperature. The slip velocity boundary condition was applied along the microchannel walls.

The Navier–Stokes equations were discretized before being solved numerically via a FORTRAN computer code. The following ranges were considered for the studied parameters: slip factor (B) equal to 0.001, 0.01 and 0.1; Reynolds number (Re) between 10 and 100; solid nanoparticle mass fraction (ϕ) between 0.0012 and 0.0025; Darcy number (Da) between 0.001 and 0.1; and porosity factor (ε) between 0.4 and 0.9.

Increasing the Da caused a greater increase in the velocity profile than increasing Re, whereas increasing porosity did not affect the velocity profile growth at all.

This paper is the continuation of the authors’ previous studies. Using the water/FMWCNT nanofluid as the working fluid in microchannels is among the achievements of this study.

This chapter provides information on the development of Vietnamese education under the influence of global forces based on the analysis of relevant education research and policies using Wolhuter’s frameworks. In the process of coming up with ways to develop education in the face of different influences of globalization, besides having reactions with patterns commonly found in countries around the world, Vietnam also has responses that reflect its own political, sociocultural and economic characteristics. The state still plays a controlling role in education at all levels and many culture-related features that have existed throughout the country’s history have hardly changed, namely aspects related to teachers, learners and teaching and learning methods. To sustain its education in the globalized era, Vietnam must make more efforts in various aspects such as the link between education and employment, the logic of education objectives, the feasibility and appropriateness of curricula, quality of education, especially of higher education and equality in education for underprivileged groups.

Purpose: Green consumerism is on the rise in the 21st century, impelling businesses to prioritise environmental awareness and expand eco-products to keep up with the growing demand. This research examines how social media (SM) and moral obligations (MO) affect consumer views and their propensity to make eco-friendly choices.

Methodology: Data were gathered from 508 participants using an adaptive questionnaire. The proposed model was tested using ‘structural equation modelling’.

Findings: The results show that electronic word-of-mouth (EWOM) and the intent to acquire green goods favourably impact consumer behaviour. MO positively influences attitudes and intentions to make green purchases (GPI), with attitudes acting as a mediator between MO and GPI.

Implications: This research is of utmost importance for marketers wanting to enhance their SM communication strategies to influence consumers’ opinions of green products and raise the possibility that they would make environmentally conscious purchases.

The purpose of this paper is to investigate the impact of leadership styles on different organizational outcomes and value structure such as: overall business performance, working style, motivation and trust of employees, management efficiency and corporate culture in the context of Vietnamese small and medium enterprises (SMEs).

The authors perform a qualitative analysis and gather data by conducting conversational semi-structured interviews with 51 SME managers from different industries. Data were analyzed using a step-by-step approach following Creswell.

The study explores the effects of leadership styles on various organizational outcomes. Given the features of SMEs, it sheds light on the significance of leadership styles in changing work environment, increasing staff retention, and promoting the viability of SMEs. It also discusses the selection of leadership styles in accordance with Vietnamese culture.

This study has practical implications on human resource management in the context of SMEs. SME managers, training providers and support agencies may utilize the research outcomes to raise the awareness of SMEs leaders. Based on the research findings, appropriate training programs should be developed to assist managers in tackling major problems.

Although several previous studies have tried to investigate the influence of leadership styles on organizational outcomes, this is the first research to explore the topic in the context of SMEs and in conjunction with the Vietnamese culture.

This paper aims to propose a comprehensive framework for prioritizing complexity criteria. The framework was validated by applying in infrastructure international development (ID) project as a case study.

A literature review highlighted the limitations of existing complexity prioritization methods. Then, a combination of the fuzzy decision-making trial and evaluation laboratory (DEMATEL) and fuzzy analytic network process (ANP) was employed as a foundation to develop a three-stage complexity prioritization framework. Focus group discussion and questionnaire surveys were used to practically test the framework in the infrastructure ID projects.

The three-stage complexity prioritization framework was validated to be reliable and feasible. The findings showed ability of consultants, scope uncertainties, site compensation and clearance, communication between stakeholders, administrative procedure and project duration were the most significant complexity criteria of ID projects in the Vietnamese context.

The framework is a robust tool that enables the researchers to grasp the interaction of complexity criteria for complexity prioritization. Later studies can apply the proposed framework, with some minor revisions, to assess the interaction of criteria in other research topics in, and beyond, project complexity. Results of the case study suggest project stakeholders focusing on complex interactions among criteria to reduce project complexity.

This study contributes to the body of knowledge by providing a comprehensive complexity prioritization framework that grasps the interrelationship of complexity criteria. For stakeholders of ID projects, the findings provide insightful perspectives to understand complexity, which can help to enhance project performance.

Marketing.

This case study would suit any class that deals with the interaction between the nature of business and society and is rooted in a specific basis in developing Asia. The particular nature of the class could be used to shape the subsequent discussion if necessary: a marketing class would focus on the need for development of the local market and consumer behaviour, while a management class might be more interested in the issues relating to an appropriate ownership structure in an emerging market in a company based on an amalgamation of smaller units likely to have been run by technicians (farmers) or party functionaries.

Vinamilk is a Vietnamese company that has grown from humble beginnings as a collection of small-scale dairy co-operatives until the current time when it is one of the largest and most successful companies in that country and recognized as a significant developing Asian success. It has managed this while operating in a product category that has had very little tradition in Vietnam and for which demand has had to be created in order to enable the company to expand. The success of Vinamilk has now made it possible to imagine an international or a transnational future in which it would no longer be tied to its Vietnamese home or to be required to support government-supported developmental goals such as supporting employment and using local inputs. A debate is taking place, therefore, about the nature of the continuing relationship between firms and the public sector in a rapidly developing nation.

The objectives include: evaluation of the nature of the business-state relationship; evaluation of the nature of the home environment with respect to its attitude to business; and understanding better the nature of emerging markets and their interaction with international markets.

Teaching notes are available for faculty. Please consult your librarian for access.

The purpose of this paper is to investigate the impacts of investor attention on stock market activity.

The authors employed the Google Search Volume (GSV) Index, a direct and non-traditional proxy for investor attention.

The results indicate a strong correlation between GSV and trading volume – a traditional measure of attention – proving the new measure’s reliability. In addition, market-wide attention increases both stock illiquidity and volatility, whereas company-level attention shows mixed results, driving illiquidity and volatility in both directions.

To the best of the authors’ knowledge, Nguyen and Pham’s (2018) study has been the only previous study identifying investor attention in Vietnam by using GSV as a proxy and examining the impacts of broad search terms about the macroeconomy on the stock market as a whole – on stock indices’ movements. The paper will contribute to this by quantifying GSV impacts on each stock individually.

The purpose of this paper is to examine the association between company reputation and dividend policy.

In this study, sample of 98,809 firm-year observations from 22 countries covering 2005–2016 were used.

Firm reputation concerns are associated with higher propensities to pay dividends and payout ratios. Further, this positive effect is more pronounced for firms with high free cash flows, high information asymmetry and low institutional monitoring. The results are robust to an instrumental variable approach, propensity score matching and the Heckman two-stage correction approach while addressing endogeneity concerns.

These findings have significant implications for various stakeholders, such as existing and potential investors, managers, policymakers and regulators, by providing insights into the relationship between corporate reputation and firm dividend payout decisions. Corporate reputation is highlighted as crucial for accessing finance, emphasizing the role of national regulators and policymakers in facilitating firms' efforts to improve their reputation. The study highlights the dynamics of corporate reputation and dividend payout, calling for proactive engagement from regulators and policymakers. Crafting policies conducive to reputation-building can enhance firms' financial prospects, indicating the need for strategic interventions at managerial, regulatory and policy levels. Understanding the influence of economic context is crucial for firms to tailor reputation management strategies and optimize funding opportunities in different economic environments.

Overall, results suggest that reputation serves as a disciplining mechanism, where firms will pay dividends to maintain their reputations.

Research on social media advertising reactance (SMAR) is in the early stages. This paper intends to present a full picture of SMAR studies, introduce a comprehensive theoretical model (the social media advertising reactance model, SMARM) and provide insights into research and practice.

This review adopts the concept-driven systematic review approach, identifying 92 articles from four primary academic databases – EBSCO, Elsevier, Web of Science and Google Scholar.

First, this review offers overviews of five topics: publication trends, the journals publishing research, research methodology, targeted platform and the main theories. Second, based on the framework of psychological reactance, this study proposes the SMARM, identifying and elaborating on four components of the nomological relationship to SMAR: related concepts, antecedents, moderators and consequences.

This research has implications for advertisers, social media platform operators and policymakers by providing a whole picture of SMAR. Moreover, the SMARM could guide the stakeholders to adopt a user-friendly advertising design for the sustainable development of social media advertising (SMA).

By presenting an up-to-date review of SMAR-related research, this paper contributes to the literature of social media, advertising and marketing. Through a comparison with traditional advertising, this paper makes the characteristics of SMA clear. Meanwhile, the SMARM is developed to systematically elaborate on all related elements of SMAR and explain their underlying causal relationships. Future research directions are proposed.

Migraine consists of a chronic neurological disorder with episodic attacks. Migraine prevails in people of their most productive working age, followed by difficulties at work and social functions. This scoping review aims to analyze the economic burden on a workplace due to chronic migraine compared to episodic migraine by focusing on the indirect costs of absenteeism and presenteeism and addressing the research gaps in this field.

According to the PRISMA Extension for Scoping Reviews, a comprehensive electronic literature search was carried out from 2010 to 2020 using the Google Scholar and Medline/PubMed databases.

The findings confirm that chronic and episodic migraine harm the workplace's productivity, escalating with the frequency of migraine attacks. Differences occur between presenteeism and absenteeism rates among chronic and episodic migraine, and higher presenteeism than absenteeism rates.

This review sheds new light on the indirect burden of migraine. It shows the gaps in the explored research area and the need for more targeted and extended research that could provide a deeper understanding of the workplace's hidden costs of migraine. The issues discussed are important as they can raise awareness of the interested parties, policymakers, employers and vocational rehabilitation specialists on the work disability associated with migraine.