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China CDC weekly 2024年第43期6卷 1126-1131页

作者： Wei Yu yongbing lan Dianjianyi Sun Pei Pei Ling Yang Yiping Chen Huaidong Du Yingcai Yang Dan Schmidt Junshi Chen Zhengming Chen Jun Lyu Liming Li Canqing Yu Department of Epidemiology&Biostatistics School of Public HealthPeking UniversityBeijingChina Peking University Center for Public Health and Epidemic Preparedness&Response BeijingChina Key Laboratory of Epidemiology of Major Diseases(Peking University) Ministry of EducationBeijingChina Clinical Trial Service Unit&Epidemiological Studies Unit(CTSU) Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom Shinan District Center for Disease Control and Prevention Qingdao CityShandong ProvinceChina China National Center for Food Safety Risk Assessment BeijingChina State Key Laboratory of Vascular Homeostasis and Remodeling Peking UniversityBeijingChina.

What is already known about this topic?The prevalence of COPD in Chinese individuals aged 50 years and above was obviously higher than that in younger adults,but the risk factors for this age group were *** is added by this report?The prevalence was estimated at 12.8%and 5.7%for males and females over 50 in 2020–2021,with confirmed risk factors of cigarette smoking,a family history of respiratory diseases,respiratory symptoms,and a history of cough or respiratory diseases during *** are the implications for public health practice?The findings may help clinicians and the public identify individuals at high risk of COPD and take targeted measures in a timely manner.

关键词： respiratory diseases prevalence

中国10个地区成年人腌制蔬菜摄入情况的流行病学特征分析

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中华流行病学杂志 2024年第1期45卷 19-25页

作者：喻唯兰勇兵吕筠孙点剑一裴培杜怀东陈君石陈铮鸣李立明余灿清中国慢性病前瞻性研究项目协作组北京大学公共卫生学院流行病与卫生统计学系北京100191 北京大学公众健康与重大疫情防控战略研究中心北京100191 重大疾病流行病学教育部重点实验室(北京大学) 北京100191 牛津大学医学研究委员会人口健康研究组牛津OX37LF 牛津大学临床与流行病学研究中心纳菲尔德人群健康系牛津OX37LF 国家食品安全风险评估中心北京100022 不详

目的描述中国慢性病前瞻性研究(CKB)队列10个地区不同种类腌制蔬菜摄入的地区、时间和人群分布特征。方法CKB项目分别在2004-2008年、2008年和2013-2014年开展了基线调查、第一次和第二次重复调查。根据10个地区第二次重复调查对象的咸... 详细信息

目的描述中国慢性病前瞻性研究(CKB)队列10个地区不同种类腌制蔬菜摄入的地区、时间和人群分布特征。方法CKB项目分别在2004-2008年、2008年和2013-2014年开展了基线调查、第一次和第二次重复调查。根据10个地区第二次重复调查对象的咸菜和酸泡菜平均摄入频率,将调查地区分为摄入咸菜为主地区、摄入酸泡菜为主地区和几乎不摄入腌制蔬菜地区。然后分别在前两组地区中运用logistic回归描述腌制蔬菜摄入的时间变化趋势和人群分布特征,并分析其他膳食特征的分布情况。结果摄入咸菜为主地区包括青岛、哈尔滨、苏州、浙江项目点,而摄入酸泡菜为主地区包括甘肃、四川项目点,两类地区分别纳入204036和105573名基线调查对象。摄入咸菜为主地区在基线调查、第一次和第二次重复调查腌制蔬菜的平均摄入频率分别为3.1、3.3、1.8 d/周;摄入酸泡菜为主地区相应的频率为2.8、2.7、1.6 d/周,均呈下降趋势(P<0.001)。基线调查时两类地区的已婚、文化程度较低者腌制蔬菜摄入频率均更高;摄入咸菜为主地区年龄较大者腌制蔬菜摄入频率更高,而摄入酸泡菜为主地区相反(P<0.001)。随着腌制蔬菜摄入频率的增加,两类地区经常摄入辣食、口味偏咸等人群比例也呈增加趋势(P<0.05)。结论CKB项目人群的腌制蔬菜摄入种类和水平存在明显的地区和人群分布差异,摄入频率呈下降趋势,且与其他膳食特征存在相关。

关键词：腌制蔬菜咸菜酸泡菜趋势分析地区差异人群差异

CONVERGENCE OF MODIFIED TRUNCATED EULER-MARUYAMA METHOD FOR STOCHASTIC DIFFERENTIAL EQUATIONS WITH HOLDER DIFFUSION COEFFICIENTS

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Journal of Computational Mathematics 2024年第4期42卷 1109-1123页

作者： Guangqiang lan Yu Jiang College of Mathematics and Physics Beijing University of Chemical TechnologyBeijing 100029China

Convergence of modified truncated Euler-Maruyama(MTEM)method for stochastic differential equations(SDEs)with(1/2+α)-Holder continuous diffusion coefficients are investigated in this *** prove that the MTEM method for... 详细信息

关键词： Stochastic differential equations Modified truncated Euler-Maruyama method Strong convergence One-sided Lipschitz Holder continuous

A direct electrochemical biosensor for rapid glucose detection based on nitrogen-doped carbon nanocages

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Rare Metals 2024年第5期43卷 2184-2192页

作者： lan-lan Li Yu Zhao Li-Jia Pan Jian-Bin Xu Yi Shi College of Mechanical and Electrical Engineering Henan Agricultural UniversityZhengzhou 450002China School of Electronic Science and Engineering Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210093China Department of Electronic Engineering The Chinese University of HongKongHongkong 999077China

Given the increasing number of diabetic patients,rapid and accurate detection of glucose in body fluids is *** study developed a direct electrochemical biosensor for glucose based on nitrogen-doped carbon nanocages(NCNCs).NCNCs possess a large specific surface area of 1395 m^(2)·g^(-1),a high N atomic content of 9.37%and good biocompatibility,which is favorable for enzyme loading and electron *** surface average concentration of electroactive glucose oxidase on NCNCs was 2.82×10^(-10)mol·cm^(-2).The NCNC-based direct electrochemical biosensor exhibited a high sensitivity of 13.7μA·(mmol·L^(-1))^(-1)·cm^(-2),rapid response time of 5 s and an impressive electron-transferrate constant(ks)of 1.87 s^(-1).Furthermore,we investigated an NCNC-based direct electron transfer(DET)biosensor for sweat glucose detection,which demonstrated tremendous promise for non-invasive wearable diabetes diagnosis.

关键词： Direct electron transfer(DET) Nitrogen-doped carbon nanocages(NCNCs) Glucose oxidase Biosensor

A Scalable Pillar Layered Metal-Organic Framework for Natural Gas Purification

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Chemical Research in Chinese Universities 2024年第4期40卷 675-681页

作者： LU Nan lan lan GAO Qiang LI Na BU Xian-He School of Materials Science and Engineering Nankai UniversityTianjin300350P.R.China State Key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin300071P.R.China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang212003P.R.China

One-step harvest of high-purity methane(CH_(4))from ternary propane/ethane/methane(C_(3)H_(8)/C_(2)H_(6)/CH_(4))mixtures remains a desirable yet challenging goal for natural gas ***,adsorbents either suffer from high capacity and selectivity,or are caught in a dilemma of scalable ***,we demonstrate a scalable pillar layered metal-organic framework Ni-MOF for highly efficient one-step CH_(4)***-MOF exhibits high C_(2)H_(6)and C_(3)H_(8)uptakes of 83.3 and 86.1 cm^(3)/g at 298 K and 100 kPa and remarkable C_(2)H_(6)/CH_(4)(50/50,volume ratio,21.5)and C_(3)H_(8)/CH_(4)(50/50,volume ratio,212.0)***,high C_(2)H_(6)(42.2 cm^(3)/g at 10 kPa)and C_(3)H_(8)(64.7 cm^(3)/g at 5 kPa)capacities in the low-pressure region at 298 K were realized on Ni-MOF,suggesting the strong affinities of Ni-MOF towards C_(2)H_(6)and C_(3)H_(8).Furthermore,the dynamic breakthrough experiments revealed that purifying CH_(4)from natural gas in one-step can be achieved in Ni-MOF with high-purity(>99.8%)and productivity(346.0 cm^(3)/g).Most significantly,the production of Ni-MOF can be scalably synthesized at room temperature,rendering it promising potential for industrial *** combined advantages of exceptional separation performance,scalability,and cycle stability of Ni-MOF pave the way for one-step CH_(4)purification from natural gas.

关键词： Metal-organic framework Adsorption and separation Natural gas purification Scale-up synthesis

Editorial:special topic on advanced energy catalytic materials

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Science China Materials 2024年第6期67卷 1681-1683页

作者： Shaojun Guo Yaqian lan School of Materials Science and Engineering Peking UniversityBeijing 100871China School of Chemistry South China Normal UniversityGuangzhou 510630China

Aiming to lowering the society’s dependence on fossil fuels,energy catalysis stands at the forefront of technological advancement,which promises to revolutionize the way we harness,convert,and utilize renewable *** current special topic of our journal,titled"Advanced Energy Catalytic Materials",aims to highlight the latest innovations,challenges,and opportunities in this exciting field.

关键词： field utilize catalysis

Tunable Phase Structure of Side-chain Liquid Crystalline Polymers Enabled by Molecular Engineering of Dual Mesogenic Cores

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Chinese Journal of Polymer Science 2024年第10期42卷 1459-1469,I0009页

作者： Wen-Huan Yao lan-Sheng Liu Jie Zhao Yan-Xia Wang An-Zhi Ma Zheng-Rui Ma lan-Ying Zhang Ruo-Chen lan College of Chemistry and Chemical Engineering Hunan UniversityChangsha410082China Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-Environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou730070China Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing100871China Institute of Advanced Materials&Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang330022China

A series of novel side-chain liquid crystalline(SCLC)copolymers were synthesized by attaching two distinct mesogenic units,namely a chiral cholesteryl-based monomer(M1)and an achiral biphenyl-based monomer(M2),to a poly(3-mercaptopropylmethylsiloxane)(PMMS)backbone via thiol-ene click *** influence of side chain composition on the self-assembly behavior and phase structures of these SCLC copolymers was systematically investigated using different *** indicate that three distinct liquid crystalline phases and four unique molecular configurations were identified within the polymer series,with the emergence of the liquid crystalline phase being a synergistic outcome of the two distinct side *** study underscores the critical influence of side chain dimensions,rigidity,and spatial volume on the self-assembly structures and phase characteristics of liquid crystalline polymers,providing valuable insights for the rational design and development of advanced functional materials with tailored properties.

关键词： Liquid crystalline copolymers Self-assembly Phase structure Chiral molar ratio

Perspective on new cell-free DNA technologies for early cancer detection

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Cancer Biology & Medicine 2024年第2期21卷 139-143页

作者： Jie Li Xun lan Department of Basic Medical Sciences School of MedicineTsinghua UniversityBeijing 100084China MOE Key Laboratory of Bioinformatics Tsinghua UniversityBeijing 100084China Tsinghua-Peking Joint Center for Life Sciences Tsinghua UniversityBeijing 100084China

High cancer heterogeneity and aggressiveness are major factors contributing to the poor prognosis of patients with advanced cancer~(1-5).Early detection of cancer can significantly improve the prognosis of patients with early-stage cancer after standard *** traditional cancer detection technologies,such as endoscopy for gastrointestinal cancer,mammography for breast cancer。

关键词： prognosis cancer patients

Demonstration of high-dimensional controlled quantum teleportation for the first time

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Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 163-164页

作者： Yu-Bo Sheng lan Zhou College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China College of Science Nanjing University of Posts and TelecommunicationsNanjing 210023China

Controlled quantum teleportation(CQT) [1] is the tripartite version of quantum teleportation and it allows the teleportation of an unknown quantum state under the control of a third party. Compared with low-dimensional counterparts,high-dimensional CQT can exhibit larger information transmission capacity and a higher control power [2,3].

关键词： quantum dimensional high

The chlorine evolution reaction promoted by organocatalysts with amide functional groups

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Science China Chemistry 2024年第3期67卷 749-750页

作者： lan Zhao Liang-Nian He State Key Laboratory and Institute of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071China

Since the nineteenth century, the chlor-alkali process entails the electrochemical oxidation of sodium chloride solutions to Cl_(2) by the chlorine evolution reaction(CER) and the simultaneous production of sodium hyd... 详细信息

关键词： chlorine hydroxide promoted