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At present, national-level policies concerning the eradication and control of bovine viral diarrhoea (BVD) differ widely across Europe. Some Scandinavian countries have enacted strong regulatory frameworks to eradicate the disease, whereas other countries have few formal policies. To examine these differences, the attitudes of stakeholders and policy makers in 17 European countries were investigated. A web-based questionnaire was sent to policy makers, government and private sector veterinarians, and representatives of farmers' organisations. In total, 131 individuals responded to the questionnaire and their responses were analysed by applying a method used in sociolinguistics: frame analysis. The results showed that the different attitudes of countries that applied compulsory or voluntary frameworks were associated with different views about the attribution or blame for BVD and the roles ascribed to farmers and other stakeholders in its eradication and control.

Rural entrepreneurs are of extreme importance in China's progress toward a more market‐oriented economy as the vast majority of Chinese live in rural areas. From an institutional perspective and based on content analysis of 91 publicly published stories about rural Chinese entrepreneurs broadcast by China Central Television, this paper addresses several key aspects of rural entrepreneurship in China and specifically probes into how different institutional elements (i.e., regulative, normative, and cognitive components) affect the strategic behaviors of rural Chinese entrepreneurs. We found that due to weak regulatory protection of intellectual rights, rural entrepreneurs in China tend to work on innovations on their own or with close family members instead of collaborating with external sources; these entrepreneurs use guanxi strategically to deal with constraints from the institutional environment; it is important to build legitimacy by either building alliances with large, established firms, or acquiring approval from people of authority.

The potential of oil-in-water emulsions as a β-carotene delivery system was examined in this study. Oil-inwater (O/W) emulsions containing β-carotene were formed by gum arabic with α-tocopherol, tertiary butyl hydroquinone (TBHQ) and ascorbyl palmitate, respectively. The influence of antioxidants on the chemical degradation of β-carotene in gum arabic stabilized emulsions was investigated at 4, 25, 45 and 65°C in the dark, respectively. An accelerated photooxidation test was carried out at 45°C (450 W/m 2 ). Moreover, β-carotene degradation rate constants (k 1 -value), activation energy (E a ) and decimal reduction time (D-value) were estimated to interpret the degradation kinetics. The impact of antioxidants on the thermal stability of β-carotene in diluted emulsions was generally in the following order: α-tocopherol> TBHQ >ascorbyl palmitate. α-Tocopherol was found to be the most effective to the antioxidation of β-carotene at the concentration of 0.10 wt% under light exposure. It was concluded that the stability of β-carotene in oil-in-water emulsions could be improved by the presence of different antioxidants.