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2. Chinese Residents’ Perceptions of COVID-19 During the Pandemic: Online Cross-sectional Survey Study

Author

Cui, Tingting, Yang, Guoping, Ji, Lili, Zhu, Lin, Zhen, Shiqi, Shi, Naiyang, Xu, Yan, and Jin, Hui

Subjects
Computer applications to medicine. Medical informatics, R858-859.7, Public aspects of medicine, RA1-1270
Abstract

BackgroundCOVID-19 has posed a global threat due to substantial morbidity and mortality, and health education strategies need to be adjusted accordingly to prevent a possible epidemic rebound. ObjectiveThis study aimed to evaluate the perceptions of COVID-19 among individuals coming to, returning to, or living in Jiangsu Province, China, and determine the impact of the pandemic on the perceptions of the public. MethodsIn this study, an online questionnaire was distributed to participants between February 15 and April 21, 2020. The questionnaire comprised items on personal information (eg, sex, age, educational level, and occupation); protection knowledge, skills, and behaviors related to COVID-19; access to COVID-19–related information; and current information needs. Factors influencing the knowledge score, skill score, behavior score, and total score for COVID-19 were evaluated using univariate and multivariate analyses. The time-varying reproduction number (Rt) and its 95% credible interval were calculated and compared with the daily participation number and protection scores. ResultsIn total, 52,066 participants were included in the study; their average knowledge score, skill score, behavior score, and total score were 25.58 (SD 4.22), 24.05 (SD 4.02), 31.51 (SD 2.84), and 90.02 (SD 8.87), respectively, and 65.91% (34,315/52,066) had a total protection score above 90 points. For the knowledge and skill sections, correct rates of answers to questions on medical observation days, infectiousness of asymptomatic individuals, cough or sneeze treatment, and precautions were higher than 95%, while those of questions on initial symptoms (32,286/52,066, 62.01%), transmission routes (37,134/52,066, 71.32%), selection of disinfection products (37,390/52,066, 71.81%), and measures of home quarantine (40,037/52,066, 76.90%) were relatively low. For the actual behavior section, 97.93% (50,989/52,066) of participants could wear masks properly when going out. However, 19.76% (10,290/52,066) could not disinfect their homes each week, and 18.42% (9589/52,066) could not distinguish differences in initial symptoms between the common cold and COVID-19. The regression analyses showed that the knowledge score, skill score, behavior score, and total score were influenced by sex, age, educational level, occupation, and place of residence at different degrees (P

Published
2020
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6. Properties and mechanism of V(Ⅴ) removal by mussel shells loaded with nano zero-valent iron

Author

LI Ran, JI Lili, HE Qianrui, XIA Xiaoyue, and WANG Yaning

Subjects
mussel shell, liquid-phase synthesis, nano zero-valent iron, vanadium, reduction, Environmental technology. Sanitary engineering, TD1-1066
Abstract

Aiming at the environmental pollution problems caused by vanadium-containing wastewater produced by mining, metallurgy, petroleum refining, and other industries, this study prepared mussel shells loaded nano-zero-valent iron composites(nZVI@CMS) by liquid-phase reduction method using pyrolyzed mussel shell powder(CMS) as the carrier. The morphology and structure of nZVI@CMS were characterized by SEM, TEM, XRD, BET, FT-IR and XPS. The adsorption performance of V(Ⅴ) on nZVI@CMS was investigated by batch adsorption experiments, and the adsorption mechanism of V(Ⅴ) on nZVI@CMS was analyzed using adsorption kinetics, adsorption isotherm, and adsorption thermodynamics. The results showed that nZVI@CMS was a loose and porous chain sphere-like structure containing a variety of oxygen-containing functional groups. The maximum adsorption of V(Ⅴ) by nZVI@CMS was 149.33 mg/g under the conditions of nZVI@CMS dosage of 0.05 g/L, initial pH=7, V(Ⅴ) concentration of 20 mg/L, solution volume of 100 mL, and temperature of 25 ℃. The adsorption of V(Ⅴ) by nZVI@CMS could be fitted by Langmuir adsorption isotherm equation and pseudo second-order reaction kinetic equation, and it was a spontaneous heat adsorption process. The main mechanisms of V(Ⅴ) removal by nZVI@CMS included adsorption, reduction, and co-precipitation. This study turned the mussel shells into treasure, and provided a new idea for the efficient treatment of V(Ⅴ) in wastewater.

Published
2024
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34. Evaluating and Mapping Indoor Thermal Risk on Older People in Long-Term Care Buildings Under Urban Microclimate Impacts

Author

Ji, Lili, Shu, Chang, Laouadi, Abdelaziz, Ge, Hua, Zmeureanu, Radu, Gaur, Abhishek, Lacasse, Michael, Wang, Liangzhu Leon, Förstner, Ulrich, Series Editor, Rulkens, Wim H., Series Editor, Wang, Liangzhu Leon, editor, Ge, Hua, editor, Zhai, Zhiqiang John, editor, Qi, Dahai, editor, Ouf, Mohamed, editor, Sun, Chanjuan, editor, and Wang, Dengjia, editor

Published
2023
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35. Quantification of Building Thermal Resilience Against Heatwaves

Author

Ji, Lili, Shu, Chang, Laouadi, Abdelaziz, Ge, Hua, Zmeureanu, Radu, Lacasse, Michael, Wang, Liangzhu Leon, Förstner, Ulrich, Series Editor, Rulkens, Wim H., Series Editor, Wang, Liangzhu Leon, editor, Ge, Hua, editor, Zhai, Zhiqiang John, editor, Qi, Dahai, editor, Ouf, Mohamed, editor, Sun, Chanjuan, editor, and Wang, Dengjia, editor

Published
2023
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36. Comparing Multiple Overheating Assessment Metrics Using Measured Data

Author

Shu, Chang, Xie, Zihan, Ji, Lili, Baril, Daniel, Wang, Lin, Bai, Xuechen, Yang, Senwen, Ge, Hua, Zmeureanu, Radu, Lacasse, Michael, Laouadi, Abdelaziz, Gaur, Abhishek, Wang, Liangzhu Leon, Förstner, Ulrich, Series Editor, Rulkens, Wim H., Series Editor, Wang, Liangzhu Leon, editor, Ge, Hua, editor, Zhai, Zhiqiang John, editor, Qi, Dahai, editor, Ouf, Mohamed, editor, Sun, Chanjuan, editor, and Wang, Dengjia, editor

Published
2023
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