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This paper aims to focus on the effect of the operating condition such as the impeller speed on the centrifugal fan performance and flow characteristics. The ability to predict the behavior of the airflow motion in a centrifugal blower is essential for obtaining the topology optimization design.

A physical model of the air blower consisting of these main parts in a blower system: collector, impeller, outlet flange and volute casing, and the appropriate boundary conditions are set up by ANSYS software. Computation fluid dynamics are performed for the numerical analysis. The calculation of blower performance parameters such as total pressure, efficiency and flow rate is based on the Reynolds averaged Navier–Stokes equations and k-εturbulence flow model.

The numerical results show that the change in operating conditions has a significant effect on the blower performance, and the pressure maintained inside the blower is higher for a larger impeller rotational speed.

This work is original and has not yet been submitted to elsewhere or published previously.

The purpose of this paper is to investigate the factors affecting Vietnamese consumers' intention and behavior towards “bringing your own shopping bags” (BYOB) instead of using plastic bags based on the theory of interpersonal behavior (TIB).

We used a combination of in-depth interview and large-scale survey methods with the official research sample of 536 Vietnamese consumers to explore the relationship among factors in the research model including: attitude, affect, social factor, facilitating conditions, intention and behavior towards BYOB instead of using plastic bags. The collected data went through quantitative analysis steps including Cronbach's Alpha reliability test, exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and structural equation modeling (SEM) for scales and hypotheses testing.

The results show that intention towards BYOB has a positive effect on consumers' behavior towards BYOB. Facilitating conditions have a stronger and more positive influence than attitude and affect intention towards BYOB. Meanwhile, the hypothesis about the relationship between social factors and intention towards BYOB was rejected by this study.

The main limitation of this paper is that the findings of the present study are limited to elements of the TIB.

Based on the results of the study, we made some suggestions for state management agencies and retailers to promote intention and behavior towards BYOB instead of using plastic bags.

This study applies the TIB to understand the relationship between factors such as attitude, affect, social factors and facilitating conditions on intention and behavior towards BYOB instead of using plastic bags.

The purpose of this paper is to estimate a recent trend in climate change and its impact on livelihood of community living in Nam Dinh province, Vietnam. Further, it aims to increase the government attention for adaptation measures by providing awareness of climate change and its negative impacts on livelihood.

For study purpose, cross-sectional and secondary data sets were used. The community perceptions about climate change were recorded by face-to-face interviews of 500 respondents from Nam Dinh province, Vietnam in April 2015 by using a well-structured questionnaire, whereas secondary data were collected from the statistical yearbook of General Statistics Office of Vietnam. To accomplish the study objectives, Cobb–Douglas production function and Likert scale were used to estimate the community perceptions of climate change and impact of climate change on livelihood, respectively.

Results depict that climate change negatively impacted on the productivity of rice and livestock. Particularly, frequently occurring of droughts, floods and salinity intrusion negatively impacted on rice productivity, while livestock productivity is decreased by frequent occurring of flood storms in study area.

The study results suggest a government support is essential to achieve sustainable livelihoods for coastal communities living in the Red River Delta, particularly some adaptation measures in the context of climate change are required in study area.

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.

In recent years, climate-smart agriculture (CSA) was introduced to Vietnam to enhance farmers’ resilience and adaptation to climate change. Among the climate-smart agricultural technologies (CSATs) introduced were water-saving techniques and improved stress tolerant varieties. This study aims to examine the determinants of farmers’ adoption of these technologies and the effects of their adoption on net rice income (NRI) in three provinces as follows: Thai Binh (North), Ha Tinh (Central) and Bac Lieu (South).

Determinants of adoption of CSATs and the adoption effects on NRI are analyzed by using a multinomial endogenous switching regression framework.

The results showed that gender, age, number of family workers, climate-related factors, farm characteristics, distance to markets, access to climate information, confidence on the know-how of extension workers, membership in social/agricultural groups and attitude toward risk were the major factors affecting the decision to adopt CSATs. However, the effects of these factors on the adoption of CSATs varied across three provinces. These technologies when adopted tend to increase NRI but the increase is much greater when these are combined.

It is important to consider first the appropriateness of the CSA packages to the specific conditions of the target areas before they are promoted. It is also necessary to enhance the technical capacity of local extension workers and provide farmers more training on CSATs.

This study is the first attempt to identify key determinants of adoption of CSATs either singly or in combination and the adoption effects on NRI in Vietnam.

This article examines how farmers' assignment of responsibility for the disaster in late 2015 – early 2016 connects with reflexivity, habitus and local vulnerability.

This article uses semi-structured interviews with 28 disaster-affected households in the Vietnamese Mekong Delta to answer the question.

This article finds out that Vietnamese farmers actively accepted their responsibility for the disaster. In their explanation, they link their action with the root causes of vulnerability embedded in their socio-cultural traditions and collective identity.

This article makes a case for the importance of local culture and epistemologies in understanding disaster vulnerability and responsibility attribution.

This article is original in researching Vietnamese farmers' responsibility attribution, their aesthetic reflexivity, collective habitus and the socio-cultural root causes of disaster.

This paper aims to investigate the impact of the COVID-19 pandemic on university students' employability skills and give insights into preparation for future crises that may happen.

Employing an interpretative phenomenological approach with the frame of social cognitive theory, the current study examined the changes in environmental, behavioral and personal elements of human functioning for employability skills being affected by the conditions during the pandemic.

Findings based on ten in-depth semi-structured interviews with students at universities in Vietnam highlighted that the global pandemic performed as both challenge and an opportunity for employability skills development, yet the extent to which the students can benefit from the new studying conditions attributed to each individual's initiatives in taking advantages of resources and acting against difficulties.

Whether the pandemic became a hindrance or a motivation for students' employability skills to develop and whether students effectively utilized an agency to overcome challenges and improved their skills after the pandemic have not yet been investigated. This study added to the body of literature regarding self-regulated learners by demonstrating agency in the learning process as well as how to manage careers and improve employability skills by making use of resources in disconnected settings.

The topic of student engagement (SE) has received considerable attention in the literature for its robust correlation with many positive educational outcomes in higher education (HE). However, among these desirable outcomes, student competencies have rarely been examined despite their importance in employability. While universities are expected to improve graduates' competencies and prepare them to adapt in an uncertain and complex workplace, the results are still limited. Therefore, this study attempts to examine the impacts of SE on student competencies in HE in Vietnam, focusing on the out-of-class environment. It also aims at developing a measurement instrument for out-of-class SE.

Based on student self-reports, this study collected two different datasets of 492 and 490 undergraduate business students in Hanoi to implement separate exploratory and confirmatory factor analyses. The measurement instrument of out-of-class engagement was adapted from the literature review and developed based on qualitative research, which combined the four subconstructs of participatory, emotional, cognitive and agentic engagement.

Findings confirms four subconstructs of SE in the out-of-class context where agentic engagement is a valid and distinct aspect. Findings further show that, among these four subconstructs, cognitive and agentic engagement have significant impacts on all four important student competencies for business students, while participatory and emotional engagement do not.

This study confirmed out-of-class SE has significant positive impacts on student competencies in HE, especially with out-of-class cognitive and agentic engagement. The findings show evidence of different impacts between participatory and agentic engagement, in which while participatory has no impacts on student competencies, agentic engagement significantly contributes to competencies of managing self, communicating and managing people and tasks. This implies different outcomes can be expected from different levels of engagement.

From a managerial point of view, the findings of this study strongly suggest that higher education institutions (HEIs) should view the out-of-class environment as an important extended learning context for students' complete development. Besides, as student out-of-class participatory engagement is not sufficient to the formation of student competencies, HEIs should strengthen out-of-class cognitive and agentic engagement among students. From the leadership perspective, building a good campus environment with various opportunities to involve students in diversified extra-curricular activities is beneficial to university students.

This paper contributes to the body of knowledge in SE by establishing a theoretical linkage between out-of-class engagement and student competencies and provides sufficient statistical significance. In addition, it validated out-of-class agentic engagement as a separate and distinct subcomponent of out-of-class SE and confirmed the positive impact of out-of-class engagement on student competencies for business students.

The purpose of this study is to investigate the resistance in management accounting practices (MAPs) in a developing economy in the manufacturing and service sectors in Vietnam.

Data collection was carried out using survey questionnaires in Vietnamese language. The questionnaires were distributed to selected respondents from the manufacturing and service organisations in Vietnam. Textual structuralism was used to analyse different categories of data, i.e. survey questionnaires, photos and qualitative texts obtained from the literature.

The findings indicate that the usage of MAPs is more prevalent in the manufacturing sector than in the service sector. In addition, various traditional and contemporary MAPs are being used concurrently in Vietnam, which challenges the classical twofold dichotomy between mere socialism and mere neoliberalism.

The textual and photographic structuralism is used in this study to analyse primary data (geography and society and time) in a static setting. Hence, it does not analyse the research phenomena in a dynamic equilibrium setting to view the development of the research phenomena over time. Further research could expand data collection to include longitudinal and dynamic settings.

MAPs can be implemented in economic systems ranging from command to capitalist systems. Although most countries in the world follow a mixed economic system, specific MAPs could be designed for a transitional economic system such as that of Vietnam. This affects both theorists and practitioners in Vietnam applying sustainable MAPs to boost a country's competitiveness during transition.

This study expands understanding of the conformity of MAPs in relation to economic systems under the Communist Party of Vietnam (CPV) – the ruling party of the Socialist Republic of Vietnam. Understanding the differences in the way these MAPs are utilised constitutes an essential area of the accounting discipline to advance MAPs in Vietnamese enterprises and progress theoretical development of sustainable MAPs.