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The purpose of this study is to identify the willingness to pay (WTP) and trade-off that Vietnamese generation Z consumers could make when purchasing eco-friendly apparel. This research uses the Discrete Choice Experiment methodology to measure consumers' WTP and how consumers trade off among different attributes, including eco-friendly, origin, manufacturing technology, and materials. The results show that generation Z consumers are willing to pay for organic label products at a higher price of 21.22% and eco-friendly label items at a higher price of 37.72%. Consumers who have a higher level of corporate social responsibility (CSR) awareness and higher income are willing to pay more for organic and ecofriendly label apparel. They were least willing to purchase apparel that is made in China, while they see no difference between T-shirts made in Vietnam and in other countries except China. Consumers in the current study were more willing to purchase eco-friendly as compared to organic apparel. The findings suggest that enterprises should consider the language used when communicating with consumers. Also, consumers prefer products made in Vietnam, suggesting the promotion of domestic manufacturing through in-depth branding, product positioning, and promotions. The results also confirm that the application of CSR in enterprises is the right and necessary step to be taken for businesses to develop in a sustainable integration world.

Background: The alveolar bone can be damaged by a variety of causes such as trauma, bone tumors and cysts, infection and tooth loss, affecting function, aesthetics, comfort and confidence of the patient. In order to reconstruct the alveolar bone defect, besides autologous bone, cellular and inorganic biological materials are being developed and widely applied including Biphasic Calcium Phosphate (BCP). Therefore, it is very essential to establish an animal model of alveolar bone defect to evaluate the progress of bone formation and the potential of materials before clinical application. Materials and Methods: The study was performed on 18 white, male, healthy rabbits weighing 2.5 ± 0.2 kg, 8-to-10-week aged, divided into 2 groups: group 1 (control), group 2 (BCP). The alveolar bone defect formation was performed in 2 groups, then reconstructed with BCP (group 2). Evaluation of soft tissue healing characteristics in 2 groups after 1, 3, 5, 7, 14 days after surgery and assessment of alveolar bone regeneration by X-ray and histological analysis after 2, 4, 6 weeks. Results: Healing score in each group increased gradually from day 1 to day 14, having statistical significance from day 5. Healing score of 2 groups tended to increase gradually in order: control group < BCP group (p > 0.05). X-ray scores in each group increased from week 2 to week 6, with statistical significance at week 6 (p < 0.05). X-ray scores of 2 groups tended to increase in order: the control group < BCP group (p > 0.05). New connective tissue formed in the control group reached the highest at week 4 and decreased after week 6 (p < 0.05). New bone formation in each group increased statistically from week 2 to week 6. The amount of newly formed bone in BCP group was significantly higher than in control group (p < 0.05). Conclusions: The above established model allows us to evaluate the capability of the bone regeneration of various materials. In addition, BCP is a potential material which can be used to reconstruct alveolar bone defects in patients