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Yellow River Basin is an important industrial belt for energy development in China with a large number of resource-based cities. However, due to the large-scale energy development and coal mining, Yellow River Basin has encountered the problems of fragile ecological environment, unreasonable resource allocation and low development quality. Nowadays, urban resilience construction and green development have become an important direction for transformation and development of resource-based cities in Yellow River Basin as the research object, this paper constructs the coupling mechanism between urban resilience and green development efficiency, and quantitatively measured the spatio-temporal pattern of coupling coordination between resilience and green development efficiency of 40 resource-based cities from 2010 to 2019 by using the physical coupling model. Based on the stochastic effects panel Tobit model, the coupling factors of resilience and green development efficiency of resource-based cities in Yellow River Basin are studied. The results show that: (1) The resilience construction of resource-based cities in Yellow River Basin has achieved remarkable progress with a steady growth trend. The green development efficiency reveals a "W" shaped fluctuation growth trend over time, and the overall growth efficiency is not significant. (2) The mean value of the system coupling degree between them fluctuates within the range of [0.7, 0.8], presenting a high coupling relationship. In addition, the degree of coupling coordination shows a trend of steady improvement over time. (3) The spatial heterogeneity of urban resilience, green development efficiency, and their coupling degree and coupling coordination degree are consistent, that is, resource-based cities in the middle and lower reaches are stronger than those in the upper reaches. (4) Government capacity, education input and population size have significant spatial differences on the impact of coupled coordinated development, while infrastructure, industrial structure and environmental regulation have spatial homogeneity. In the context of the national strategy of accelerating green transformation of resource-based cities, this study is of certain guiding significance for promoting resource-based cities to get rid of dependence on regional economic development path and high-quality development through resilience governance.(城市韧性建设和绿色发展已成为资源型城市转型发展的重要方向。以黄河流域资源型城市为研究对象，通过构建城市韧性水平与绿色发展效率的耦合机理，利用物理学耦合模型，定量测度了2009—2019年40个资源型城市的韧性水平与绿色发展效率耦合协调的时空格局；通过构建随机效应面板Tobit模型，探究黄河流域资源型城市韧性水平与绿色发展效率耦合的影响因素。研究发现：（1）黄河流域资源型城市韧性建设成效显著，呈稳步增长态势；绿色发展效率随时间呈“W”形波动增长态势，但总体增长效率不显著。（2）两者耦合度均值在［0.7，0.8］内波动，呈现较高的耦合关系；耦合协调度随时间呈稳步提升态势，从“濒临失调阶段”逐步过渡到“良好协调阶段”。（3）城市韧性水平、绿色发展效率，以及两者间的耦合度和耦合协调度的空间异质性具有一致性，即中下游资源型城市强于上游。（4）政府能力、教育投入和人口规模对耦合协调度的影响存在较显著的空间异质性，而基础设施、产业结构和环境规制的影响具有空间同质性。)

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Objective To understand the present situation of the standardization of separate serving chopsticks and ladles provided by catering service providers in Shanghai, and to analyze the influencing factors. Methods A total of 971 catering service providers from extra large, medium and small restaurant in 16 administrative districts of Shanghai were investigated with a self-designed questionnaire using stratified two-stage sampling method between Sep and Nov 2023, mainly concentrate on thesituation and reasons of providing separate serving chopsticks and ladles and their compliance with standards. Logistic regression was used to explore the influencing factors. Results Among the 971 units surveyed, there were 911 catering service (93.8%) providers that provided separate serving chopsticks and ladles. The main reason for providing separate serving chopsticks and ladles is for improving high quality of catering service. Binary Logistic analysis showed that catering service providers with large scale restaurant (large: OR=2.08, 95%CI: 2.03-2.12； medium: OR=1.99, 95%CI: 1.96-2.02), good quantitative level of food safety (OR=1.84, 95%CI: 1.83-1.85), named Shanghai Green Restaurant (OR=1.11, 95%CI: 1.09-1.12), known as time-honored brand (OR=1.20, 95%CI: 1.17-1.22), regularly acceptance of law enforcement inspections (OR=6.99, 95%CI: 6.91-7.07), knowledge of relevant regulation (OR=5.77, 95%CI: 5.70-5.85) and more channels for understanding standards (OR=1.23, 95%CI: 1.21-1.25) were more likely to provide separate serving chopsticks and ladles. The situation that strictly follow the fully standard requirements of separate serving chopsticks and ladles to provide 8 types of catering conducts was unsatisfactory (14.1%) . Logistic analysis showed that catering service providers with large scale restaurant (extra large: OR=6.42, 95%CI: 2.52-16.33；large: OR=4.29, 95%CI: 2.24-8.21； medium: OR=3.21, 95%CI: 1.76-5.87) and the provision of separate serving chopsticks and ladles for more than 3 years (OR= 3.1, 95%CI: 1.09-9.02) had a higher percentage of providing separate serving chopsticks and ladles in accordance with specification. Conclusion The overall provision of separate serving chopsticks and ladles by catering service providers in Shanghai is satisfactory. The scale of restaurant, quantitative level of food safety and named Shanghai Green Restaurant are possible main factors for providing separate serving chopsticks and ladles of catering service providers. However, the implementation is not good according to the standardization. The different scale of restaurant and the time of the provision of separate chopsticks and ladles are possible factors for providing separate serving chopsticks and ladles in accordance with specification. [ABSTRACT FROM AUTHOR]

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In recent years, the aquaculture industry has been developing continuously, but the intensification of aquaculture has also affected the surrounding water quality. In aquaculture, the health of farmed animals is affected by microorganisms, which in turn affects the economic benefits of the farming industry. The role of microorganisms in the aquaculture environment, the research methods of the microorganisms in the aquaculture environment, the influencing factors of the microorganisms in the aquaculture water body and the adjustment methods of the water quality in the aquaculture water body were reviewed, aiming to provide reference and basis for the research and regulation of the aquaculture environment microorganisms. [ABSTRACT FROM AUTHOR]

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General Chemistry, a foundational course for engineering students in Sino-foreign cooperative education programs, incorporates classic international textbooks to enhance its teaching quality. This approach, however, encounters challenges such as the influence of foreign culture and a potential erosion of cultural self-confidence during the teaching process. To counter this, the course emphasizes ideological and political education to deepen students' appreciation and understanding of their own culture. This paper details how the ideological and political development of the General Chemistry course is grounded in the principle of culture confidence. It actively integrates Chinese ideological and political elements while thoughtfully combining them with international perspectives throughout the teaching process. This integration not only enriches the course's content, but also fosters an effective ideological and political education environment, leading to significant educational outcomes. [ABSTRACT FROM AUTHOR]

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Recurrent spontaneous abortion（RSA） is a common complication of early pregnancy nowadays, and the etiology of RSA remains unknown in nearly 50% of cases, which are often referred to as unexplained recurrent spontaneous abortion（URSA） or idiopathic recurrent abortion. In this study, a search on PubMed for relevant research in the past decade was conducted. The influencing factors and mechanisms of miscarriage events in women with URSA were summarized. Additionally, current clinical experimental diagnostic techniques and treatment methods were reviewed, the differences and limitations among various treatments were discussed, unresolved issues and important priorities in future clinical research were highlighted. [ABSTRACT FROM AUTHOR]

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