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Big Data Analy.ics in E-commerce for the *** China Through Literature Reviewing

Journal of sy.tems science and Information 2021年第1期9卷 16-44页

作者： Weiqing ZHUANG Morgan C.WANG Ichiro NA kamoto Ming JIANG school of Internet Economics and Business Fujian Universily of TechnologyFuzhou 350108China Research Center for“One Belt and Road"Economic and Policy Frujian University of TechnologyFiuzhou 350108China College of science University of Central rloridaFlorida 32525USA school of Internet Econormics and Business Furjian Universily of TechnologyPuzhou 350108China school of Internet Econormics and Business Irujian University of TechnologyPuzhou 350108China

Big data analy.ics(BDA)in e-commerce,which is an emerging field that started in 2006,deeply.affects the development of global e-commerce,especially.its lay.ut and performance in the *** *** paper seeks to examine the relative influence of theoretical research of BDA in e-commerce to explain the differences between the *** China by.adopting a statistical analy.is method on the basis of samples collected from two main literature databases,Web of science and CNKI,aimed at the *** *** results of this study.help clarify.doubts regarding the development of China's e-commerce,which exceeds that of the ***,in view of the theoretical comparison of BDA in e-commerce between them.

关键词： big data analy.ics e-commerce U.s.and China literature review

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Decreased incidence followed by.comeback of pediatric infections during the COVID‑19 pandemic in Japan

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World Journal of Pediatrics 2022年第8期18卷 564-567页

作者： Cy.us Ghaznavi Haruka s.kamoto Takay.ki Kawashima say.ka Horiuchi Masahiro Ishikane sarah Krull Abe Daisuke y.neoka Akifumi Eguchi y.ta Tanoue Masahiro Hashizume shuhei Nomura Department of Health Policy.and Management School of MedicineKeio University35 ShinanomachiShinjuku-kuTokyo 160-8582Japan Medical Education Program Washington University School of Medicine in St.LouisSaint LouisUSA Department of Global Health Policy Graduate School of MedicineThe University of TokyoTokyoJapan Toky. Foundation for Policy.Research TokyoJapan Department of Hy.iene and Public Health Tokyo Women’s Medical UniversityTokyoJapan Department of Mathematical and Computing science Tokyo Institute of TechnologyTokyoJapan Center for Birth Cohort studies University of YamanashiYamanashiJapan Disease Control and Prevention Center National Center for Global Health and MedicineTokyoJapan Division of Prevention National Cancer Center Institute for Cancer ControlTokyoJapan Infectious Disease surveillance Center National Institute of Infectious DiseasesTokyoJapan Department of sustainable Health science Center for Preventive Medical SciencesChiba UniversityChibaJapan Institute for Business and Finance Waseda UniversityTokyoJapan

During the coronavirus disease 2019(COVID-19)pandemic,the Japanese government implemented several infection control measures,such as states of emergency.soE)and school closures,and encouraged universal masking and hand *** activity.restrictions and improved hy.iene were found to be associated with declines in the incidence of infuenza during the 2019–2020 winter season[1].Prior studies have found that the incidence of seven pediatric infections,such as phary.goconjunctivitis and varicella,decreased during and after the school closures in Japan[2].As activity.restrictions continue to be lifted,there is growing concern that pediatric infections may.suddenly.return given that the pool of susceptible children increased during the pandemic[3].In this study.we use national infectious disease sentinel data from January.2012 to October 2021 to assess changes in the reported number of pediatric infections in Japan during the COVID-19 *** hy.othesize that the reporting of many.infectious diseases decreased during the early.stages of the pandemic but ultimately.returned to normal when activity.restrictions were lifted.

关键词： closure return suddenly

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