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This study explored travelers' behavioral intention to adopt ride-hailing services. With regard to perceived value, several factors related to perceived benefit and perceived sacrifice were considered. Moreover, subjective norm and perceived policy support were further introduced into the concept model. After the construction of the concept model, an empirical analysis was put forward to test the hypotheses proposed. In addition, the effect of sociodemographic factors and usage frequency was further investigated. The empirical analysis was based on a survey that put forward in Nanjing, China. The results demonstrate that perceived value is positively related to behavioral intention. And factors of perceived benefit are related to perceived value positively, while factors of perceived sacrifice have a negative effect on perceived value., 1. Introduction In 2017, DiDi announced that its number of orders is 7.43 billion, which shown that ride-hailing services have been one of the most important travel modes in China. [...]

Thin-film nanofiltration composite (TFNC) membrane with high performance was demonstrated in this work. The membrane consisted of dopamine-modified polyethersulfone (PES) nanofibrous supporting layer and interfacially polymerized polyamide selective barrier layer. PES nanofibrous scaffold was modified with dopamine through self-polymerization. Here, dopamine was introduced to facilitate the formation of ultra-thin TFNC membrane on PES substrate with high performance and enhance the interfacial compatibility and structural stability of the composite membrane. An ultra-thin selective layer was generated by interfacial polymerization reaction between solutions of piperazine and trimesoyl chloride on the dopamine-modified porous PES membrane. Various parameters in interfacial polymerization, including monomer concentration, curing temperature, and curing time, were discussed and optimized to achieve high-performance composite nanofiltration membrane. The resulting TFNC membrane possessed relative high salt rejection (~99.4%) and high flux (~63.0 L/m2 h) to Na2SO4solutions at a low pressure of 0.6 MPa, doubling the flux of TFNC membranes prepared at the same conditions, but without dopamine modification. It is believed that dopamine modification offers an efficient route for the fabrication of composite nanofiltration membranes with high filtration performance. [ABSTRACT FROM PUBLISHER]

The coordination polymer, P(ZnL) (L=N,N′-bis[2-hydroxy-4-(dodecyloxy)benzaldehyde)]-ethylenedimine), forms a novel uniform lamellar superstructure in organic liquids, which exhibits intense fluorescence in organic dispersions as well as in the corresponding cast films. [Copyright &y& Elsevier]

Background: Cough is a common symptom during and after COVID-19 infection; however, few studies have described the cough profiles of COVID-19., Objective: The aim of this study was to investigate the prevalence, severity, and associated risk factors of severe and persistent cough in individuals with COVID-19 during the latest wave of the Omicron variant in China., Methods: In this nationwide cross-sectional study, we collected information of the characteristics of cough from individuals with infection of the SARS-CoV-2 Omicron variant using an online questionnaire sent between December 31, 2022, and January 11, 2023., Results: There were 11,718 (n=7978, 68.1% female) nonhospitalized responders, with a median age of 37 (IQR 30-47) years who responded at a median of 16 (IQR 12-20) days from infection onset to the time of the survey. Cough was the most common symptom, occurring in 91.7% of participants, followed by fever, fatigue, and nasal congestion (68.8%-87.4%). The median cough visual analog scale (VAS) score was 70 (IQR 50-80) mm. Being female (odds ratio [OR] 1.31, 95% CI 1.20-1.43), having a COVID-19 vaccination history (OR 1.71, 95% CI 1.37-2.12), current smoking (OR 0.48, 95% CI 0.41-0.58), chronic cough (OR 2.04, 95% CI 1.69-2.45), coronary heart disease (OR 1.71, 95% CI 1.17-2.52), asthma (OR 1.22, 95% CI 1.02-1.46), and gastroesophageal reflux disease (GERD) (OR 1.21, 95% CI 1.01-1.45) were independent factors for severe cough (VAS>70, 37.4%). Among all respondents, 35.0% indicated having a productive cough, which was associated with risk factors of being female (OR 1.44, 95% CI 1.31-1.57), having asthma (OR 1.84, 95% CI 1.52-2.22), chronic cough (OR 1.44, 95% CI 1.19-1.74), and GERD (OR 1.22, 95% CI 1.01-1.47). Persistent cough (>3 weeks) occurred in 13.0% of individuals, which was associated with the risk factors of having diabetes (OR 2.24, 95% CI 1.30-3.85), asthma (OR 1.70, 95% CI 1.11-2.62), and chronic cough (OR 1.97, 95% CI 1.32-2.94)., Conclusions: Cough is the most common symptom in nonhospitalized individuals with Omicron SARS-CoV-2 variant infection. Being female, having asthma, chronic cough, GERD, coronary heart disease, diabetes, and a COVID-19 vaccination history emerged as independent factors associated with severe cough, productive cough, and persistent cough., (©Tingting Xu, Yuehan Chen, Wenzhi Zhan, Kian Fan Chung, Zhongmin Qiu, Kewu Huang, Ruchong Chen, Jiaxing Xie, Gang Wang, Min Zhang, Xuefen Wang, Hongmei Yao, Xiuqing Liao, Yunhui Zhang, Guojun Zhang, Wei Zhang, Dejun Sun, Jia Zhu, Shujuan Jiang, Juntao Feng, Jianping Zhao, Gengyun Sun, Huaqiong Huang, Jianyong Zhang, Lingwei Wang, Feng Wu, Suyun Li, Pusheng Xu, Chunhua Chi, Ping Chen, Mei Jiang, Wen He, Lianrong Huang, Wei Luo, Shiyue Li, Nanshan Zhong, Kefang Lai, China Cough Coalition. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 05.02.2024.)