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Redbelly tilapia (Coptodon zillii) poses a significant threat to aquatic ecosystem security and water quality, severely impeding ecological restoration efforts for the aquatic ecosystem. But effective control methods for redbelly tilapia, particularly within riverine and lacustrine habitats, have been scarce. "Miefeiling" an organophosphorus pesticide, has demonstrated specificity as a piscicide for tilapia species. However, there was little information regarding the application of this compound in natural water bodies, such as lakes. This study aimed to evaluate the efficacy and safety of "Miefeiling" in Dongshan Lake of Guangzhou City, where redbelly tilapia constituted 79.41% of the biomass of all the fish species. A concurrent control experiment was conducted in ponds. The application of "Miefeiling" at a concentration of 0.20 ml/m³ resulted in a substantial reduction of the redbelly tilapia population within a 30-hour period, achieving an eradication rate of 88.7 g/m³ and totaling 1598.2 kg of the redbelly tilapia removed from Dongshan Lake. Post-treatment population dynamics were as follows: no redbelly tilapia was detected 20 days post-treatment; 180 days post-treatment, redbelly tilapia accounted for 7.22% of the fish biomass; and 630 days post-treatment, comprised 14.03% of the fish biomass. This was significantly lower compared to the control lake without piscicide application, where redbelly tilapia made up 75.43% of the fish biomass. Additionally, total phosphorus and chemical oxygen demand levels reverted to baseline within seven days, with no detectable presence of malathion or dichlorvos throughout the experimental period. The application of "Miefeiling" did not adversely affect other native fish species, and the pond experiment indicated minimal impacts on phytoplankton and water quality. These results suggest that "Miefeiling" can effectively eradicate redbelly tilapia without compromising water quality and the native biota in the lake. [ABSTRACT FROM AUTHOR]

Background: Objective: To understand the barriers associated with self‐management of oral health among rural older adults in Guangxi, and to explore the high incidence of oral problems. This information will assist in the formulation of relevant strategies to solve the oral health problems in this population. Methods: Taking a phenomenological approach, the current status of, and barriers to, oral health self‐management in rural older adults from different regions of Guangxi were explored. Participants were purposively selected and interviewed face‐to‐face. Results: The interviews yielded four overarching themes and six corresponding sub‐themes pertaining to barriers in oral health self‐management. These included: (1) Older adults' understanding of oral health and disease, perceptions of oral health and their oral health behaviours; (2) Problems in accessing oral health information; (3) Role of family support; and (4) Barriers to healthcare that included access to dental services, oral treatment experience and financial burden of access to dental care. Conclusion: Rural older adults in Guangxi face oral health self‐management barriers. Improving access to oral healthcare services and changing existing oral health perceptions and habits may assist them in overcoming self‐management challenges. [ABSTRACT FROM AUTHOR]

Liquid organic hydrogen carrier (LOHC) technology has unique advantages in hydrogen storage and transportation. However, the lack of research on the continuous dehydrogenation process of LOHCs has hindered the design and application of industrial dehydrogenation processes. In this work, a highly active dehydrogenation catalyst 1.5 wt% Pd/activated carbon (Pd/C) and a commercial catalyst 5 wt% Pd/Al2O3 were used for the continuous dehydrogenation of dodecahydro‐N‐ethylcarbazole (12H‐NEC). Based on a tubular reactor and lab‐scale apparatus, 1.5 wt% Pd/C catalyst achieved a maximum dehydrogenation conversion of 98.3% and a maximum NEC selectivity of 95.3%, while dehydrogenation conversion and NEC selectivity with 5 wt% Pd/Al2O3 were 98.3% and 97.6%, respectively. It showed the equally excellent performance between Pd/C and Pd/Al2O3, and the former has less Pd loading than the latter, with the potential of reducing the production cost of the dehydrogenation catalyst. The dehydrogenation results also indicated the difference in catalytic performance between the two kinds of catalysts. The obtained kinetics data were analyzed, and the dynamics of continuous dehydrogenation were studied to provide fundamental information for dehydrogenation scale‐up. [ABSTRACT FROM AUTHOR]

Despite the widespread implementation of civil–military integration (CMI) policies in various countries, there remains a significant debate surrounding their impact on innovation. Taking the set of the National Civil–Military Integration Strategy in China in 2015 as a quasi-natural experiment, this paper uses the Propensity Score Matching and Difference in Difference (PSM-DID) method to systematically examine the impact of CMI policy on firm innovation. The results demonstrate that the CMI policy has notably increased the intensity of firms' Research and Development (R&D) investment, but does not exert a significant influence on their innovation output and efficiency. Notably, the policy effect is primarily observed among incumbent military firms and large-scale firms. Moreover, the CMI policy exhibits a considerable effect on fostering new cooperation links, but does not yield a significant impact on deepening cooperation or promoting network agglomeration. The results imply that the policy has not yet deeply affected firms' innovation processes and patterns. These findings provide manifold implications for policy understanding and decision-making. [ABSTRACT FROM AUTHOR]