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Non-radical activation of persulfate with Bi_(2)O_(3)/BiO_(1.3)I_(0.4)for efficient degradation of propranolol under visible light

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Journal of Environmental Sciences 2024年第8期142卷 57-68页

作者： yuehua Deng Qianqian Che Yani Li Jiating Luo Xiang Gao Yan He Yiling Liu Tong Liu Xiaolong Zhao Xiaobin hu Wei Zhao College of Geology and Environment Xi’an University of Science and TechnologyXi’an 710054China Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation Xi’an 710054China Department of Mechanical Engineering The University of Hong KongHong Kong 999077China School of Life Science Huzhou UniversityHuzhou 313000China School of Materials Engineering Changshu Institute of TechnologyChangshu 215500China

Non-radical activation of persulfate(PS)by photocatalysts is an effective approach for removing organic pollutants from aqueous environments.In this study,a novel Bi_(2)O_(3)/BiO_(1.3)I_(0.4)heterojunction was synthesized using a facile solvothermal approach and used for the first time for non-radical activation of PS to degrade propranolol(PRO)in the presence of visible light.The findings found that the degradation rate of PRO in the Bi_(2)O_(3)/BiO_(1.3)I_(0.4)/PS system was significantly increased from 19%to more than 90%within 90 min compared to the Bi_(2)O_(3)/BiO_(1.3)I_(0.4)system.This indicated that the composite system exerted an excellent synergistic effect between the photocatalyst and the persulfate-based oxygenation.Quenching tests and electron paramagnetic resonance demonstrated that the non-radical pathway with singlet oxygen as the active species played a major role in the photocatalytic process.The existence of photo-generated holes during the reaction could also be directly involved in the oxidation of pollutants.Meanwhile,a possible PRO degradation pathway was also proposed.Furthermore,the impacts of pH,humic acid and common anions on the PRO degradation by the Bi_(2)O_(3)/BiO_(1.3)I_(0.4)/PS were explored,and the system’s stability and reusability were also studied.This study exhibits a highly productive catalyst for PS activation via a non-radical pathway and provides a new idea for the degradation of PRO.

关键词： Iodine deficiency Heterojunction Persulfate(PS) Propranolol(PRO) Photocatalytic degradation

An Autoregressive Integrated Moving Average Model for Predicting Varicella Outbreaks — China, 2019

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China CDC weekly 2023年第31期5卷 698-702,I0002,I0003页

作者： Miaomiao Wang Zhuojun Jiang Meiying You Tianqi Wang Li Ma Xudong Li yuehua hu Dapeng Yin Office of Epidemiology Chinese Center for Disease Control and PreventionBeijingChina Training and Outreach Division National Center for Mental HealthBeijingChina Data Resources and Statistics Department Beijing Municipal Health Big Data and Policy Research CenterBeijingChina Hefei Center for Disease Control and Prevention Hefei CityAnhui ProvinceChina Technical Guidance Office for Patriotic Health Work Chinese Center for Disease Control and PreventionBeijingChina Hainan Center for Disease Control and Prevention Haikou CityHainan ProvinceChina.

Introduction:Varicella,a prevalent respiratory infection among children,has become an escalating public health issue in China.The potential to considerably mitigate and control these outbreaks lies in surveillance-based early warning systems.This research employed an autoregressive integrated moving average(ARIMA)model with the objective of predicting future varicella outbreaks in the country.Methods:An ARIMA model was developed and fine-tuned using historical data on the monthly instances of varicella outbreaks reported in China from 2005 to 2018.To determine statistically significant models,parameter and Ljung-Box tests were employed.The coefficients of determination(R2)and the normalized Bayesian Information Criterion(BIC)were compared to selecting an optimal model.This chosen model was subsequently utilized to forecast varicella outbreak cases for the year 2019.Results:Four models passed parameter(all P0.05).ARIMA(1,1,1)×(0,1,1)12 was determined to be the optimal model based on its coefficient of determination R2(0.271)and standardized BIC(14.970).Fitted values made by the ARIMA(1,1,1)×(0,1,1)12 model closely followed the values observed in 2019,the average relative error between the actual value and the predicted value is 15.2%.Conclusion:The ARIMA model can be employed to predict impending trends in varicella outbreaks.This serves to offer a scientific benchmark for strategies concerning varicella prevention and control.

关键词： ARIMA prevention utilized

Identifying the Optimal Age for Herpes Zoster Vaccination—Yichang City,hubei Province,China,2017–2019

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China CDC weekly 2022年第29期4卷 631-634页

作者： Meiying You Tianqi Wang Miaomiao Wang Wei Jiang Jing Jiang Xudong Li yuehua hu Dapeng Yin Office of Epidemiology Chinese Center for Disease Control and PreventionBeijingChina Data resources and Statistics Department Beijing Municipal Health Big Data and Policy Research CenterBeijingChina Yichang Center for Disease Control and Prevention Yichang CityHubei ProvinceChina Hainan Center for Disease Control and Prevention Haikou CityHainan ProvinceChina.

Summary What is already known about this topic?Herpes zoster(shingles)is a common skin condition in older adults,which usually presents as a painful rash with blisters.Vaccination is the most effective method to prevent shingles.However,there is not sufficient population-based epidemiological data in China to optimize the timing of zoster vaccination.What is added by this report?Clustering analyses of population-wide epidemiological data from the Healthcare Big Data Platform in Yichang,China showed that the average annual zoster incidence is the highest among people 55 years or older,at 10 cases per thousand persons per year,making this age group the optimal target population for vaccination.Incidence was lower but increased with age among younger adults,28–54 years old.What are the implications for public health practice?With limited vaccination resources,zoster vaccinations should be targeted at adults 55 years or older who are at the greatest risk for shingles.Research should be conducted to understand the risk of shingles among young and middle-aged adults and identify triggers of shingles:potentially leading to preventive measures.

关键词： younger zoster vaccination

Surface chemistry considerations of gangue dissolved species in the bastnaesite flotation system

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Fundamental Research 2022年第5期2卷 748-756页

作者： Longhua Xu Zhoujie Wang Kaiqian Shu Houqin Wu yuehua hu Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education Southwest University of Science and TechnologyMianyang 621010SichuanChina State Key Laboratory for Environment-friendly Energy Materials Southwest University of Science and TechnologyMianyang 621010SichuanChina School of Resources Processing and Bioengineering Central South UniversityChangsha 410012HunanChina

Inefficient flotation of bastnaesite remains a challenge in the production of rare earth elements.This study aimed to investigate the dissolution and adsorption behaviour of species that are commonly released into bastnaesite flotation pulp from Ca/Ba-bearing gangue minerals.The influence and corresponding mechanisms on the bastnaesite mineral surface and collectors,namely sodium oleate(NaOL),were evaluated experimentally based on micro-flotation,zeta potentials,in situ attenuated total reflection Fourier transform infrared spectroscopy(ATRFTIR),and X-Ray photoelectron spectroscopy(XPS)analyses.The flotation recovery of bastnaesite significantly decreased from ~95% to ~25%,~15%,~80%,~25% when exposed to calcite,fluorite,barite,and mixed dissolved species,respectively.The zeta potential of bastnaesite was pH sensitive,indicating that H^(+) and OH^(−)determine the surface potential of bastnaesite.Solution chemistry analyses revealed that the presence of the dissolved species differed at various pH values.In situ ATR-FTIR demonstrated the different effects of the dissolved species from calcite,fluorite,and barite on collector adsorption.The former two dissolved species mainly depressed the chemisorption of the NaOL monomers(RCOO^(-)),whereas calcite also affected the physical adsorption of the oleic acid molecular dimer(RCOOH·RCOO^(-)).Moreover,the barite dissolved species only affected the physical adsorption of the NaOL species.The results of XPS analysis revealed that dissolved species from these three gangues could pre-adsorbed onto bastnaesite and affected the interaction with the collector.Density functional theory calculations were employed to provide further theoretical insights into the interactions between the dissolved species from calcite,fluorite,and barite and NaOL.

关键词： Bastnaesite Dissolved species Flotation Adsorption Calcite

Epidemiological Characteristics of Varicella Outbreaks—China,2006–2022

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China CDC weekly 2023年第52期5卷 1161-1166页

作者： Miaomiao Wang Xudong Li Meiying You Yuanyuan Wang Xinyu Liu Zihan Li Wenjia Zhao Zhuojun Jiang yuehua hu Dapeng Yin Office of Epidemiology Chinese Center for Disease Control and PreventionBeijingChina Weifang Center for Disease Control and Prevention Weifang CityShandong ProvinceChina Training and Outreach Division National Center for Mental HealthBeijingChina Hainan Center for Disease Control and Prevention Haikou CityHainan ProvinceChina

Introduction:Varicella outbreaks significantly disrupt schools and other child-centered institutions.This study aimed to identify patterns and epidemiological features of varicella outbreaks in China from 2006 to 2022.Methods:Data were extracted from outbreak reports submitted to the Public Health Emergency Reporting Management Information System within the specified timeframe.Analytical methods included Spearman correlation tests and the Mann-Kendall trend tests,conducted using R software to analyze and summarize reported data.Additionally,statistical analyses of trends and epidemiological characteristics were performed using SPSS software.Results:Between 2006 and 2022,a total of 11,990 varicella outbreaks were reported in China,resulting in 354,082 cases.The attack rates showed a decreasing trend over the years(Z=−4.49,P<0.05).These outbreaks occurred in two peaks annually.The eastern region accounted for the highest number of outbreaks(31.53%),followed by the southwestern(24.22%)and southern(17.93%)regions.Varicella outbreaks were most common in elementary schools.Most of the outbreaks(60.43%)were classified as Grade IV(general)severity,with 86.41%of the outbreaks having 10–49 cases.The median and inter-quartile ranges(IQR)of the duration of outbreaks,response time,and case counts were 21(10,39)days,4(0,12)days,and 23(16,35)cases,respectively.These variables showed a positive correlation(P<0.001).Conclusions:Varicella outbreaks exhibited fluctuating trends,initially decreasing until 2012,followed by an increase,reaching the highest peak in 2018–2019.Continual monitoring of varicella epidemiology is necessary to assess the burden of the disease and formulate evidence-based strategies and policies for its prevention and control.

关键词： prevention epidemiology annually

技术政治时代下中美国际科技合作的战略转向比较研究

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中国科技论坛 2024年第2期 168-179页

作者：胡雯鲍悦华上海社会科学院信息研究所上海200235 上海杉达学院管理学院上海314100

技术政治时代背景下,国际竞争焦点围绕技术权力的争夺、布局和秩序构建展开,国际科技合作的驱动结构发生深刻变化,主要国家战略转向态势明显。本文以技术政治时代的重要特征作为变革动因,选取中国和美国国际科技合作战略作为比较研究对... 详细信息

技术政治时代背景下,国际竞争焦点围绕技术权力的争夺、布局和秩序构建展开,国际科技合作的驱动结构发生深刻变化,主要国家战略转向态势明显。本文以技术政治时代的重要特征作为变革动因,选取中国和美国国际科技合作战略作为比较研究对象,采用“目标-理念-路径”分析框架对两国在战略目标、战略理念、实施路径上的转变方向进行对比,接着使用文献计量分析法从总体发展态势、主导地位变迁、合作网络演化3个维度进一步开展量化验证和具体分析。战略转向趋势的多维度对比结果表明:①技术政治时代下中美战略布局呈现差异化走向,美国以排他性多边主义框架为核心的“技术联盟”战略逐步形成,中国则以“开放创新”为核心理念,由参与全球创新转向引领全球创新;②中国在时代变局中所受影响更为明显,析出的合作需求还未得到充分转移和补充;③中国在国际科技合作能级和利用国外科研资金方面尚有提升空间;④在共同关注的全球性挑战议题上,中美仍有持续合作空间。在此基础上,从战略层、战术层、操作层提出启示建议。

关键词：技术政治时代国际科技合作战略布局比较研究

Paracrine function amplifies pro-tumor electrochemical signal within neuron-glioma synapses

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Science China(Life Sciences) 2024年第6期67卷 1318-1320页

作者： Yan hu Peishan hu Xiaozhong Peng Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE State Key Laboratory of BiotherapyWest China Second University HospitalSichuan UniversityChengdu 610041China Guangdong Institute of Gastroenterology Department of General SurgeryGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655China Department of Molecular Biology and Biochemistry Institute of Basic Medical SciencesMedical Primate Research CenterNeuroscience CenterChinese Academy of Medical SciencesSchool of Basic Medicine Peking Union Medical CollegeBeijing 100730China State Key Laboratory of Respiratory Health and Multimorbidity Institute of Basic Medical Sciences Chinese Academy of Medical SciencesSchool of Basic Medicine Peking Union Medical CollegeBeijing 100730China Institute of Laboratory Animal Science Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100730China

Neuronal activity plays a pivotal role in various physiological processes,including tissue development,homeostasis,and adaptability.Advances in recent years have improved our understanding of neuronal activity in brain cancers,such as glioblastoma(GBM)and diffuse midline gliomas(DMG),which are among the most prevalent and lethal cancers affecting children and adults.Generally,the neurons regulate brain cancers via two routes.

关键词： glioma homeostasis function

Influencing Factors on Cardiovascular Health in China

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Journal of Geriatric Cardiology 2024年第1期21卷 4-33页

作者： Sheng-Shou hu 无 Fuwai Hospital Chinese Academy of Medical Sciences BeijingChina the Writing Committee of the Report on Cardiovascular Health and Diseases in China

The Annual Report on Cardiovascular Health and Diseases in China(2022)intricate landscape of cardiovascular health in China.This is the first section of the report,which dissects influential factors across diverse domains.The investigation identifies tobacco use as a paramount concern,portraying China as the global epicenter of tobacco consumption.Cigarette smoking,exacerbated by second-hand smoke exposure,emerges as a critical and preventable risk factor,contributing to a surge in attributable deaths over the past three decades.In the realm of dietary nutrition,the study discerns an overall improvement,yet discerns worrisome deviations,notably an escalating fat intake surpassing recommended guidelines.The shifting dietary structure reveals diminished consumption of cereals and vegetables juxtaposed with an uptick in animal foods,while excessive intake of cooking oil and salt persists,straying substantially from endorsed levels.The exploration of physical activity patterns unfolds a nuanced narrative.Varied trends are observed among students,with concerns arising from sedentary behaviors and inadequate adherence to recommended guidelines.The analysis spans a trajectory of declining physical activity in Chinese adults,coupled with an alarming surge in sedentary leisure time,ultimately linking these factors to heightened risks of cardiovascular diseases and increased adiposity.An examination of overweight and obesity trends uncovers a relentless upward trajectory,projecting substantial prevalence by 2030.Noteworthy prevalence rates underscore the imperative for targeted interventions to curtail this burgeoning health crisis,with the anticipated prevalence extending to nearly two-thirds of the adult population.Psychological factors,notably depression,constitute an integral facet of cardiovascular health.Prevalence rates among patients with coronary artery disease and acute myocardial infarction underscore the intricate interplay between mental health and cardiovascular outcomes.Additionally,persistent depressive sym

关键词： Influencing smoke linking

Unusual Single Electron Transfer Reactions between Alkenes and Iodine Electrophiles

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Chinese Journal of Chemistry 2024年第5期42卷 471-477页

作者： Zhengzhao Lou Jingyu hu Chuanfa Ni Xiu Wang Jinbo hu Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences345 Ling Ling RoadShanghai200032 China School of Physical Science and Technology ShanghaiTech University100 Haike RoadShanghai201210 China

The electrophilic addition to an alkene with an electrophile has been widely studied and applied in organic synthesis.The organic chemistry textbook describes the classical reaction between an alkene and an iodine electrophile(such as elemental iodine and N-iodosuccinimide(NIS))as a typical ionic reaction,in which an iodonium ion is formed and then attacked by a nucleophile.However,in this article,we report a new and unusual reaction mode between an alkene and NIS;that is,a single electron transfer(SET)process occurs between these two reactants by forming an electron-donor acceptor complex.Not only does this unusual single electron transfer reaction between an alkene and NIS add fundamentally important knowledge to organic chemistry,it also provides a valuable synthetic method as the new SET reaction mode with opposite regioselectivity as compared with the traditional ionic mode.

关键词： Electrophilic addition Radical ions Reaction mechanisms Alkenes Fluorine