| 1 | Epidemiological and clinical characteristics of 35 children with COVID-19 in Beijing,China显示文摘Importance:Within the coronavirus disease 2019(COVID-19)global pandemic,more attention is warranted for whether this new infectious disease has unique manifestations in children.Objective:To retrospectively determine the epidemiological and clinical characteristics of 35 children with COVID-19 in Beijing,China.Methods:We collected data for 35 children diagnosed with COVID-19 who were admitted to Beijing Ditan Hospital from January 2020 to June 2020,and analyzed their epidemiological characteristics,clinical manifestations,laboratory examinations,chest imaging findings,treatments,and outcomes.Results:The children comprised 18 boys(51.4%)and 17 girls(48.6%)aged 6 months to 15 years.All patients had clear epidemiological history,with family clusters accounting for 28 cases(80.0%)and clear tracing of exposure to high epidemic areas in the remaining 7 cases(20.0%).Four(11.4%)patients were classified as asymptomatic,17(48.6%)as acute upper respiratory infection,and 14(40.0%)as mild pneumonia,with no severe or critical cases.Clinical manifestations were mild,including fever in 18(51.4%),cough in 14(40.0%),and nausea and diarrhea in 7(20.0%)patients.White blood cell count was mostly normal(26 cases,74.3%)or decreased(7 cases,20.0%);lymphocyte percentage was increased in 24(68.7%);neutrophil percentage was decreased in 25(71.4%);alanine aminotransferase was increased in 3(8.6%);and serum potassium was decreased in 4(11.4%).Time to negative viral nucleic acid testing was 2-42 days(mean:14.0±9.4 days).Chest imaging examination revealed that 20 patients(57.1%)had different forms of lung inflammation.Treatment was mainly isolation and nutritional support.Eleven patients were treated with interferon atomization inhalation.No patients required oxygen therapy.All 35 children were cured and discharged.Length of hospital stay was 9-54 days(mean:25.4±13.8 days).During regular follow-up after discharge,5 children showed positivity again in the viral nucleic acid test and were re-hospitalized for observation and treatment.The mean length of re-hospitalization stay was 10.8 days.Interpretation:Children with COVID-19 mainly become infected within their family,and children of all ages are generally susceptible.The disease in children is mostly mild and the prognosis is good.Nucleic acid tests in some patients become positive again after discharge,suggesting that it is of great significance to carry out centralized isolation medical observations and active nucleic acid tests in close contacts for early detection of patients and routine epidemic prevention and control. | Ming He Caiying Wang Lin Xu Huimin Zhang Yuhuan Liu Yang Zhao Shuxin He Yanlan Zhang Hongling Yang Yang Liu Min Miao Zhihai Chen Lin Pang | 2020 | Pediatric Investigation2020，4，4： | 3 |
| 2 | Zeolite-based Fenton-like catalysis for pollutant removal and reclamation from wastewater显示文摘Wastewater treatment and reclamation from wastewater are essential for the sustainable use of water resource.Zeolite-based heterogeneous catalysis shows great potential in circumventing the current limitations on pollutant removal and transformation to useful chemicals,inspiring advancements towards practical water treatment.This paper summarizes the methods for synthesizing zeolite-based catalyst,and the corresponding advantages and disadvantages.In comparison with traditional Fenton-like reaction,the superiority of zeolite-based catalysis lies in less sludge,wide pH range and easy recyclability.Accordingly,applications of zeolite-based Fenton-like catalysis(ZFCs)in pollutant removal and reclamation of wastewater were reviewed.Emphasis was placed on the methodological strategies in improving ZFCs,including the combination of external driving force(e.g.,photocatalysis or electrochemistry),as well as the introduction of various transition metals into zeolite-based catalyst.Possible challenges and future perspectives for ZFCs were proposed. | Zichen Shangguan Xingzhong Yuan Longbo Jiang Yanlan Zhao Lei Qin Xuerong Zhou Yan Wu Jia Wei Chew Hou Wang | 2022 | Chinese Chemical Letters2022，33，11： | 0 |
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