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Background The prevalence of health problems in Chinese children and adolescents is high. The mention of myopia, obesity, caries, scoliosis and other health problems in adolescents in the Healthy China 2030 Initiative Indicates that these problems have become the national concerns. The establishment of a long-term, standardized disease screening and management mode by the community health center (CHC) in combination with schools in service coverage areas of the CHC will provide a new idea for strengthening the health management of children and adolescents by the CHC. Objective To perform posture assessment and vision screening in full-time students receiving the nine-year compulsory education in schools in the service coverage area of Chaohe Community Health Center of Zhengzhou Economic-Technological Development Area using a CHC-school-based approach, to identify problems in disease screening and management for children and adolescents, to analyze the practice and advantages of CHC-school-based disease screening and management, and to develop a CHC-school-based health management model for children and adolescents. Methods This study was conducted from May to November 2021. Cluster sampling was used to select grades 1-9 full-time students (n=11 318) in 225 classes of 6 primary schools and 3 middle schools in the areas covered with health services delivered by the Chaohe Community Health Center of Zhengzhou Economic-Technological Development Area. All of them received posture assessment and vision screening. Results Among the participants, 6 260 were male and 5 058 were female; 7 979 were pupils, and 3 339 were junior high school students. The prevalence of abnormal posture was 41.34% (4 679/11 318) . With the increase of grade, the prevalence of uneven shoulders, thoracic kyphosis, scoliosis, O-shaped legs, and toe valgus increased, while that of knee hyperextension, flat feet and pes valgus decreased (P

Myrica rubra is a specialty crop in Zhejiang Province. Its cultivation area in Zhejiang ranks first in China. This study aims to comprehensively investigate and analyze the suitability of Myrica rubra planting in Zhejiang and better serve the Myrica rubra planting by scientifically using modern meteorological observation data. Based on the distributed simulation of climate factors, this study introduced the influencing factors related to soil and terrain and determined the weights of these factors through the analytic hierarchy process (AHP) . Then, in combination with the suitability grade indices of various influencing factors, this study divided Zhejiang into regions suitable, fairly suitable, and unsuitable for Myrica rubra planting. The results are as follows: Regions with a suitable climate occupy most of Zhejiang, indicating superior climate resources; Zhejiang Province enjoys excellent soil conditions and roughly varies between regions fairly suitable and suitable for Myrica rubra planting regarding soil conditions; The terrain varies greatly and is a key factor in the suitability of precise Myrica rubra planting. The regions with suitable terrains have altitudes of 250 ~ 450 m and slopes of 5° ~ 25°; Except for northern Zhejiang and the boundary between Shaoxing and Ningbo cities, Zhejiang is suitable or fairly suitable for Myrica rubra planting. This study achieved the spatial simulation of meteorological factors, thus providing data support for the development and improvement of the Myrica rubra planting layout in Zhejiang and being of great practical significance for improving the yield and quality of Myrica rubra. [ABSTRACT FROM AUTHOR]

Since the “One Belt And One Road” initiative, EPC general contracting mode has become the main contracting mode for China’s power construction enterprises to undertake overseas projects. It not only requires the general contractor to have strong design and construction capacity, but also strong risk control ability. Taking the D project of S company in the Philippines as an example, this paper combines the characteristics of EPC mode with the actual project, analyses the main risks existing in the project construction process from the perspective of power enterprises, and puts forward countermeasures and relevant suggestions to deal with the risks.