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The health and environmental hazards associated with synthetic dyes have led to a revival of natural dyes that are non-toxic, environmentally benign and coupled with various functions. The study aims to investigate and develop the potentiality of a popular herb called Chromolaena odorata (C. odorata) as a sustainable and stable dyestuff in textiles.

Natural colorant extracted from C. odorata leaves is used to dye the worsted fabric, which is one of the premier end-use of wool in fashion, via the padding method associated with pre-, simultaneous and post-mordanting with chitosan, tannic acid and copper sulfate pentahydrate. The effects of extraction, dyeing and mordanting processes on fabric’s color strength K/S and color difference ΔE_CMC are investigated via International Commission on Illumination’s L*a*b* color space, Fourier transform infrared spectroscopy, scanning electron microscope, color fastness to washing, rubbing, perspiration and light.

The results obtained indicate extraction with ethanol 90% with a solid/liquid ratio of 1:5 within 1 h, and coloration with a liquor ratio of 1:5 (pH 5) within 2 h under padding pressure of 0.3 MPa are the most effective for coloring worsted fabric.

The C. odorata’s application as a highly effective dyestuff possessing good colorimetric effectiveness has expanded this herb's economic potential, contributing partly to economic growth and adding value to wool in global supply chain.

C. odorata dyestuff has prevailed over other natural colorants because of its impressive color fastness against washing, rubbing, perspiration and especially color stability for pH change.

The textile industry has consumed large quantities of water and discharged large volumes of wastewater in the dyeing process. The study aims to characterize self-dyed silk with Rhodamine B (RhB) for fashion applications to reduce textile hazards to the environment and increase the added value of silk.

Bombyx mori was fed with RhB-colored mulberry leaves (1500 ppm). The effects of self-dyeing were investigated via color strength K/S, Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscope, X-ray diffraction, tensile strength, color fastness to washing, rubbing, perspiration and light.

Self-dyed silk possesses effective coloration and impressive color fastness (4–5/5), higher crystalline index (CrI) (73.26 ± 2.28%), less thermal stability and tenacity, slight change in amino acid composition compared with the pristine and no existence of harmful aromatic azo amines and arylamine salts.

The application of self-dyed silk with RhB dye has expanded new technology into fashion industry, contributing partly to economic growth and adding value to silk in the global supply chain. Besides, the self-dyeing will yield practical values in the reduction of dyeing discharge in textile industry.

Self-dyed silk was characterized for textile applications in comparison with pristine silk in terms of color strength and fastness as well as determined its polymeric properties relating to crystallinity, morphology, chemical composition, tensile properties and thermal stability which have not been investigated before.

This study addresses the empirical results of the spillover effect with export as the primary economic activity that enhances local businesses' total factor productivity (TFP). A learning mechanism is expected to be generated and used as the basis for the policy implication.

This study adopted the Cobb–Douglas function and multiple estimation approaches, including the generalized method of moments, the Olley–Pakes and the Levinsohn–Petrin estimation techniques. The findings were estimated based on the panel data of a Vietnamese local businesses survey conducted by the General Statistics Office of Vietnam (GSO) from 2010 to 2019.

The results showed that the highest TFP belongs to the businesses in the Southeast region, the Mekong Delta region, the mining industry and the foreign-invested enterprises. The lowest impacted TFP are businesses in the Northwest region and agricultural, forestry and fishery sectors. In addition, the estimated results also show that the positive spillover effect on TFP is shown through forward and backward linkage. The negative spillover effect is expressed through the backward and horizontal channels.

This study offers original empirical evidence on the learning mechanisms via which exports contribute to productivity improvement in a developing Asian economy, so making a valuable contribution to the existing academic literature in this domain. The findings of this research make a valuable contribution to the advancement of understanding on the many ways via which spillover effects manifest such as horizontal, forward, backward and supplied-backward linkage.

The study's findings indicate that it is advisable for governments to give priority to the development and improvement of forward and supply chain linkages between exporters and local suppliers. This approach is recommended in order to optimize the advantages derived from export spillovers. At the organizational level, it is imperative for enterprises to strengthen their technological and managerial skills in order to efficiently incorporate knowledge spillovers that originate from overseas partners and trade counterparts.

This study sheds new evidence on the export spillover effect on productivity in emerging economies, with Vietnam as the case study. The paper contributes to the research's originality by adopting novel methodological aspects to estimate local businesses' impact on total factor productivity.

The peer review history for this article is available at: https://publons.com/publon/10.1108/IJSE-05-2023-0373

This study aims to investigate specific professional competencies of teachers to implement education for sustainable development (ESD) in the contexts of Vietnam.

The authors carried out a Delphi study with eight ESD experts in Vietnam to collect their expertise viewpoints regarding teachers’ ESD professional competencies.

In total, 13 competencies related to three dimensions (content knowledge/cognitive, pedagogical and pedagogical content knowledge, motivation and volition) were highlighted by ESD experts.

The proposed teachers’ competencies were based on the ideas of a small group of experts, and the results need to be tested, refined and confirmed by further work. Besides, in this study, we have not defined the levels of achievement for each competency as well as developed assessment tools.

The specific professional competencies for teachers can be considered as a foundation for developing educational offers focusing on promoting the specific teachers’ professional competencies in basic ESD training.

Studies on educators’ professional competencies for ESD mostly were conducted in western countries. However, competencies do not exist independently; instead, they should be considered in specific contexts of teaching, school, culture and society. This research is among one of the first studies that contextualizes teachers’ competencies in a non-western context.

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.

The main purpose of this paper is to analyze the sustainable inward FDI pattern of Vietnam.

This paper intends to analyze the sustainable FDI pattern of Vietnam using the gravity theory and panel data approach for the annual data over the period of 2007–2020.

Vietnamese FDI volume is positively affected by political and social factors, globalization and green energy consumption, while geographical distance is a major obstacle to the increase of FDI inflows of the country.

As the main practical policy implications, issuing policies for sustainable economic growth, launching the novel strategy of green FDI neighborhood policy and regionalism through free trade agreements are recommended.

To the best of author's knowledge, there has not been any in-depth academic study focusing on the Vietnam's sustainable FDI. In addition, three robustness checks have been conducted to ensure the validation of empirical findings.

This contribution explores intergenerational relations and negotiations in Viet-German families. Due to family members' diverging socialization experiences in Vietnam and Germany as well as social ties in both societies, we assume that different ideas of intergenerational relations and mutual obligations may be found in Viet-German families. We distinguish between interdependent and independent intergenerational patterns of solidarity. Based on interviews with young adults – the descendants of Vietnamese migrants – four thematic areas are identified, in and through the shaping of which intergenerational relations are continuously negotiated at the face of migration-related challenges. These are (1) a childhood for the future, (2) reciprocal support, (3) individualization of family members and intimization of the family and (4) boundaries against kinship and the Vietnamese community. Our analysis reveals the emergence of a new, hybrid pattern of intergenerational solidarity, for which we suggest the term “individualized interdependence.” The role of young adults in the elaboration of this new family order stands out.

This study aims to explore the pathway of increasing hotel booking intentions by mapping the linkage mechanism between the antecedents and components of brand equity to ultimately drive followers’ hotel booking intention. In addition, the role of over-endorsement as a moderating variable is also evaluated.

The conceptual model and research hypotheses were each assessed using covariance-based structural equation modeling. Paper-based and online surveys were used to collect data from 443 respondents who are TikTok users and follow at least one TikTok online celebrity, while that online celebrity must have reviewed at least one type of accommodation.

Except for the relationship between virtual interactivity and online celebrity brand image, the results confirmed the relationships between research concepts.

Further studies are needed to validate the results in other cultural contexts, generalize findings and broaden the range of target respondents.

This study contributes to the hotel literature by illustrating how online celebrity brand equity (OCBE) drives hotel booking intentions. The study highlights the importance of antecedent factors – follower-centered drivers (e.g. lifestyle congruence, friendship) and online celebrity-led drivers (e.g. virtual interactivity, expertise) – to achieve a hierarchical relationship between OCBE components and followers’ booking intentions.

In Vietnam, there is a phenomenon that domestic tourists return to some tourist destinations despite their reputation of tourists being scammed. This study aims to focusses on Vung Tau City in Vietnam as a popular seaside destination to explain this interesting phenomenon.

Thereby, 22 domestic tourists who are repeated visitors and had experienced scams directly and/or indirectly in Vung Tau were interviewed and later took part in a self-evaluation.

The data shows that unreasonable charges, switching products, false reporting and dishonest middle-persons are the major dominant scams in the city. Furthermore, all visitors could be scammed regardless of gender, educational background or age. Even though scams may occur, the city remains to be a popular getaway destination for the Southern part of Vietnam due to its irreplaceable natural resources and visit intention of domestic tourists. The local authority has tried different ways to suppress issues related to tourist scams, however, due to their sociocultural and economic conditions, scams find ways to exist. Under this circumstance, domestic tourists tend to figure out how to handle scams by themselves whilst very few of them rely on the public sector to deal with them.

Finally, some practical strategies and recommendations are given as a reference for the local authority and businesses for long-term tourist business development.

This paper, respectively, investigates the common scams against domestic tourists in Vung Tau, reasons they still return to this destination, and finally, how these visitors attempt to avoid scams.

This study investigates how to foster innovation and high performance through leadership competences (result-oriented, cognitive, interpersonal) in the context of tourism firms in Vietnam during COVID-19 pandemic.

Quantitative approach and survey questionnaire were applied to collect data from managerial executives working at different tourism establishments in Vietnam. A total of 638 responses were analyzed using partial least square-structural equation modeling (PLS-SEM) technique.

The findings revealed that all three leadership competencies affected almost all factors of business innovation. However, leaders' interpersonal competence was not related to process innovation and leaders' result-oriented competence was not associated with organizational innovation. Furthermore, leaders' result-oriented competence, product innovation, and process innovation were found to directly enhance organizational performance.

This study proposed some suggestions for tourism leaders in exhibiting appropriate leadership competences and fostering business innovation to drive their firms towards superior performance.

Achieving high performance is always a priority goal of many firms; therefore, several attempted have been made to address several factors affecting organizational performance. This study provides a more nuanced picture of the relationships between the leadership competences, business innovation, and high performance of tourism firms.