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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.

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 how ephemeral content marketing enhances brand love and customer engagement, with a focus on the mediating role of brand authenticity, self-brand connection and advertising value.

This research was conducted using a quantitative method through an online questionnaire with a sample of 728 in Vietnam, analyzing data by using the partial least squares structural equation modeling model.

This study evaluates ephemeral content marketing through six dimensions: entertainment, trendiness, informativeness, interactivity, aesthetic quality and perceived relevance. The findings indicate positive mediating roles of advertising value, self-brand connection and brand authenticity on the impact of ephemeral content marketing on brand love and customer engagement.

This study provides a comprehensive model of factors affecting consumer perceptions of ephemeral content marketing, which can help businesses to proactively formulate strategic responses for consumers on social media platforms with ephemeral content features. This also allows them to precisely target their audience, avoiding ineffective and costly advertising efforts on social media when content quality is lacking.

This research sheds light on the six essential dimensions of effective ephemeral content that adds value to customers, ultimately leading to their love and active engagement. This substantial addition to the field of social media marketing opens up possibilities for further investigation of the dynamics across different forms of social media marketing, such as short-form videos or in various contexts such as tourism, fashion, food products and education, particularly in the context of ephemeral content in emerging markets such as Vietnam.

This study explores the effect of local budget retention rate changes (RER) on total factor productivity (TFP) and its components in Vietnam.

The study employs a two-system generalized method of moments (GMM) estimator and data from 2012 to 2019 across all 63 provinces/cities of Vietnam.

The study finds that local budget retention rates significantly influence public investment, affecting scale and allocation efficiency. The reallocation of budgets between regions and from the central government to local levels incurs certain costs, often resulting in economically robust provinces experiencing reductions in their retention rates.

Recognizing the challenges of immediate structural budget changes due to cultural and historical factors, the study suggests a more gradual policy approach. It emphasizes the importance of policy predictability, as abrupt reductions in the retention rate lead to higher costs than gradual reductions, thus implementing budget policies with a clearer timeline. This study provides insight into local budget allocation regimes and their impact on productivity in transitioning countries.

First, the study provides fresh evidence of the impact of retention rate changes on TFP and its components in Vietnam. Second, the study provides insights into the mechanisms of the nexus of increased budget spending, capital efficiency and, most importantly, attaining improvement in education. We also offer further insights into inefficient budget allocation agents in Vietnam, especially in large cities, which should alert scholars to explore this topic further in the future.