Regional Differences and Influencing Factors of Psychological Integration of Urban Floating Population in China

Based on the dynamic monitoring survey data of floating population in 2017, this paper analyzes the regional differences and influencing factors of psychological integration of urban floating population in China. The results show that: (1) The psychological integration of floating population is at a high level; (2) there are significant regional differences in the psychological integration of floating population. The psychological integration of Southeast coastal and a few Western cities is lower than the national average level, and the psychological integration of Northeast, Shandong, Sichuan and Chongqing is higher than the national average level; (3) the psychological integration of floating population has spatial agglomeration effect. In addition to Sichuan and Chongqing, hot spots are concentrated in the North and cold spots are concentrated in the Southeast. (4) Factors like owning real estate, employer status and high education level accelerate the psychological integration of floating population; the increase of income is not conducive to psychological integration, which is related to the sense of relative deprivation; participation in the “new rural cooperative medical system” has a restrictive effect on the psychological integration of floating population; The equalization of temporary residence permit/residence permit and basic public services is an important way to realize psychological integration. The rapid development of urban economy is conducive to the psychological integration of floating population. Inter provincial mobility has an inhibitory effect, and the effects of economic development level, family size and local residence time are not significant

Development of CCUS Technology in the Context of Carbon Neutrality and Assessment of the Potential for Offshore Storage in Guangdong Province

[Introduction] Carbon capture, utilization and storage (CCUS) is one of the key technologies for achieving carbon neutrality. The coastal area of Guangdong Province is a potential area for offshore CO2 storage projects in China. Understanding the development status of CCUS technology in the context of carbon neutrality and analyzing the offshore CO2 storage potential in the coastal area of Guangdong Province are conducive to provide the basis for large-scale CCUS projects, especially the offshore storage projects in the future in China. [Method] The technical routes and development trends of all aspects of CCUS were summarized. The offshore geological storage potential of CO2 in the Pearl River Mouth Basin and the Beibu Gulf Basin off the coast of Guangdong Province was discussed. The problems of offshore CO2 storage in China were summarized, and relevant suggestions were put forward. [Result] In recent years, China has made significant progress in CCUS technology, but some key technologies in transportation and storage has been still at the R&D demonstration stage. The Pearl River Mouth Basin and the Beibu Gulf Basin have enormous geological storage potential of CO2 and an excellent matching relationship with large CO2 emission sources in the coastal area of Guangdong Province, making it an ideal locations for offshore CO2 storage projects. However, offshore CO2 storage still faces problems such as immature technology, high storage costs, uncertain environmental impacts, and inadequate policy and regulation frameworks in China. It is necessary to focus on technological development, promoting cluster projects, and improving policies and relevant regulations to advance the development of offshore CO2 storage. [Conclusion] In the future, China should strengthen research, development and promotion of CCUS, especially the offshore storage technology, to promote the progress of carbon neutrality

Diagnostic Value of Autoantibodies in Lung Cancer: a Systematic Review and Meta-Analysis

Background/Aims: Recently, many studies have demonstrated that various tumor-associated autoantibodies have been detected in early stages of lung cancer. Therefore, we conducted a meta-analysis to comprehensively evaluate available evidence on the diagnostic value of autoantibodies against tumor-associated antigens in lung cancer. Methods: We systematically searched PubMed, Scopus, Web of Science and other databases through 23 March 2018. Study quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2. We used the bivariate mixed-effect models to calculate pooled values of sensitivity, specificity, positive likelihood ratios, negative likelihood ratios, diagnostic odds ratios and associated 95% confidence intervals. Summary receiver operating characteristic (SROC) curves were used to summarize overall test performance. Deek’s funnel plot was used to detect publication bias. Results: Review of 468 candidate articles identified fifty-three articles with a total of 11,515 patients for qualitative review and meta-analysis. Pooled sensitivity, specificity and area under the SROC curve were as follows for tumor-associated autoantibodies against the following proteins: p53, 0.19, 0.98, 0.82; NY-ESO-1, 0.17, 0.98, 0.90; Survivin, 0.19, 0.99, 0.96; c-myc, 0.14, 0.98, 0.45; Cyclin B1, 0.18, 0.98, 0.91; GBU4-5, 0.07, 0.98, 0.91; CAGE, 0.14, 0.98, 0.90; p16, 0.08, 0.97, 0.91; SOX2, 0.14, 0.99, 0.93; and HuD, 0.17, 0.99, 0.82. Conclusion: Each tumor-associated autoantibody on its own showed excellent diagnostic specificity for lung cancer but inadequate sensitivity. Our results suggest that combinations or panels of tumor-associated autoantibodies may provide better sensitivity for diagnosing lung cancer, and the diagnostic accuracy of tumor-associated autoantibodies should be validated in more studies

Measurement and Comparison of Melt-Blowing Airflow Fields: Nozzle Modifications to Reduce Turbulence and Fibre Whipping

In the melt-blowing process, micro/nanofibrous nonwovens are attenuated and formed through aerodynamic force in a turbulent airflow field. In this work, two types of airflow-directors were added under a common melt-blowing slot-die nozzle to obtain modified airflow fields. The effect of airflow-directors on time-averaged characteristics, turbulence intensity, and temperature fluctuation intensity are achieved through the simultaneous measurement of fluctuating velocity and fluctuating temperature using a two-wire probe hot-wire anemometer. Moreover, the influence of airflow-directors on fibre oscillations are also investigated through high-speed photography. The distribution of turbulence intensity and temperature fluctuation intensity reveals the characteristics of fluctuating airflow fields formed by different melt-blowing slot-die nozzles. Through the analyses of airflow characteristics and fibre oscillations, we can find that the arrangement of airflow-directors has a great impact on both turbulence distribution and fibre oscillation

Measurement and Comparison of Melt-Blowing Airflow Fields: Nozzle Modifications to Reduce Turbulence and Fibre Whipping

In the melt-blowing process, micro/nanofibrous nonwovens are attenuated and formed through aerodynamic force in a turbulent airflow field. In this work, two types of airflow-directors were added under a common melt-blowing slot-die nozzle to obtain modified airflow fields. The effect of airflow-directors on time-averaged characteristics, turbulence intensity, and temperature fluctuation intensity are achieved through the simultaneous measurement of fluctuating velocity and fluctuating temperature using a two-wire probe hot-wire anemometer. Moreover, the influence of airflow-directors on fibre oscillations are also investigated through high-speed photography. The distribution of turbulence intensity and temperature fluctuation intensity reveals the characteristics of fluctuating airflow fields formed by different melt-blowing slot-die nozzles. Through the analyses of airflow characteristics and fibre oscillations, we can find that the arrangement of airflow-directors has a great impact on both turbulence distribution and fibre oscillation

How Does Family Intergenerational Relationships Affect the Life Satisfaction of Middle-Aged and Elderly Parents in Urban Only-Child Families in Chengdu, China

Over the past 40 years, the implementation of the family planning policy in China has led to the creation of many only-child families. In the process of modernization and urbanization, it is critical to focus on the intergenerational relationships in only-child families and their associational mechanism on the life satisfaction of middle-aged and elderly parents, which has crucial implications for them staying active and healthy aging. Using the survey data from Chengdu, China, this study analyzed the characteristics of only-child parents’ life satisfaction and family intergenerational relationships, and explored the associational mechanism of family intergenerational relationships on only-child parents’ life satisfaction in urban families, as well as the possible moderating role of gender. The results indicate that there are gender differences in the life satisfaction of only-child parents in urban families, and men are more satisfied than women. Moreover, parents of sons and daughters differ in life satisfaction from the dual-gender perspective. Parents of daughters are likely to have higher life satisfaction, especially mothers. The only-child families have not moved toward nucleation in urban families, and intergenerational members maintain close contact and provide frequent mutual support to achieve individual and family development. There are significant gender differences in structural, associational, affectual, and functional solidarity among only-child. This study confirms that there are differences in the associational mechanism of family intergenerational relationships on life satisfaction in different dimensions. Affectual solidarity is the most influential factor of life satisfaction. In terms of normative and consensual solidarity, gender plays a moderating role. For men, normative and consensual solidarity is beneficial for improving life satisfaction, but it has an insignificant effect on women. The effects of structural solidarity, association solidarity, and functional solidarity are not significant

New Method for a SEM-Based Characterization of Helical-Fiber Nonwovens

The lack of tools particularly designed for the quantification of the fiber morphology in nonwovens, especially the multi-level structured fibers, is the main reason for the limited research studies on the establishment of realistic nonwoven structure. In this study, two polymers, cellulose acetate (CA) and thermoplastic polyurethane (TPU), which have different molecular flexibility, were chosen to produce nonwovens with helical nanofibers. Focusing on the nonwovens with helical fibers, a soft package was developed to characterize fiber morphologies, including fiber orientation, helix diameter, and curvature of helix. The novelty of this study is the proposal of a method for the characterization of nanofibrous nonwovens with special fiber shape (helical fibers) which can be used for curve fibers. The characterization results for the helical-fiber nonwoven sample and the nonwoven sample with straight fibers were compared and analyzed