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The Strength of Structural Diversity in Online Social Networks

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Research 2021年第1期2021卷 1203-1212页

作者： Yafei Zhang Lin wang jonathan JHZhu Xiaofan wang Alex‘Sandy’Pentland Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information ProcessingMinistry of Education of ChinaShanghai 200240China Department of Media and Communication and School of Data Science City University of Hong KongHong Kong S.A.R.China Department of Automation Shanghai UniversityShanghai 200444China Media Lab Massachusetts Institute of TechnologyCambridgeMA 02139USA

Understanding the way individuals are interconnected in social networks is of prime significance to predict their collective *** a large-scale dataset from a knowledge-sharing website,this paper presents an exploratory investigation of the way to depict structural diversity in directed networks and how it can be utilized to predict one’s online social *** capture the structural diversity of an individual,we first consider the number of weakly and strongly connected components in one’s contact neighborhood and further take the coexposure network of social neighbors into *** show empirical evidence that the structural diversity of an individual is able to provide valuable insights to predict personal online social reputation,and the inclusion of a coexposure network provides an additional ingredient to achieve that *** synthetically controlling several possible confounding factors through matching experiments,structural diversity still plays a nonnegligible role in the prediction of personal online social *** work constitutes one of the first attempts to empirically study structural diversity in directed networks and has practical implications for a range of domains,such as social influence and collective intelligence studies.

关键词： collective networks founding

Ambient synthesis, characterization, and electrochemical activity of LiFePO4 nanomaterials derived from iron phosphate intermediates

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Nano Research 2015年第8期8卷 2573-2594页

作者： jonathan M. Patete Megan E. Scofield Vyacheslav Volkov Christopher Koenigsmann Yiman Zhang Amy C. Marschilok Xiaoya wang Jianming Bai Jinkyu Han Lei wang Feng wang Yimei Zhu Jason A. Graetz Stanislaus S. Wong Department of Chemistry State University of New York at Stony Brook Stony Brook NY 77794-3400 USA Condensed Matter Physics and Materials Sciences Department Building 480 Brookhaven National Laboratory Upton NY 11973 USA Department of Materials Science and Engineering State University of New York at Stony Brook Stony Brook NY 11794-2275 USA Sustainable Energy Technologies Department Building 815 Brookhaven National Laboratory Upton NY 11973 USA National Synchrotron Light Source II Building 741 Brookhaven National Laboratory Upton NY 11973 USA

LiFePO 4 材料由于他们拥有包括热稳定性，耐久性，低费用，和长寿跨度的许多好处作为阴极材料变得日益普及。不过，这材料恳求拓宽将军实际电气化学的应用程序，开发这阴极材料的一个相对温和的、相当简单的合成方法将是有用的。此处... 详细信息

LiFePO 4 材料由于他们拥有包括热稳定性，耐久性，低费用，和长寿跨度的许多好处作为阴极材料变得日益普及。不过，这材料恳求拓宽将军实际电气化学的应用程序，开发这阴极材料的一个相对温和的、相当简单的合成方法将是有用的。此处，我们描述一可推广， sustainably 综合的 2 步方法论由合并的 LiFePO 4 一基于模板，周围，无表面活化剂，无核， U 试管协议以便产生尺寸和词法上定制的、水晶的、阶段纯的 nanowires。这些电线的纯净，作文， crystallinity ，和内在的质量系统地用传播电子显微镜学( TEM )被估计，高分辨率的 TEM ( HRTEM )，扫描电子显微镜学( SEM )，X光检查衍射( XRD )，选择区域电子衍射( SAED )，精力X光( EDAX )的散分析，和高分辨率的同步加速器 XRD 。从这些技术，我们能决定有在我们的电线中在场的任何明显的缺点的缺席，支持我们的合成途径的生存能力。电气化学的分析也被采用估计他们的电气化学的活动。尽管我们的 nanowires 不包含任何显著杂质，我们在在我们的 LiFePO 4 nanowires 和他们的像体积的对应物之间的化学结合把他们的不到最佳的电气化学的严酷归因于差别。明确地，我们试验性地第一次证明 Fe-O3 化学契约在决定材料的全面传导性起一个重要作用，进一步的断言由最近的第一原则的计算支持了。尽管如此，我们的周围的、基于答案的合成技术能够产生能被定制以便制作可再现的、可靠形态学的不同大小的材料的高度水晶、阶段纯的 energy-storage-relevant nanowires。

关键词： LiFePO4 电化学活性纳米材料合成方法磷酸铁锂活性中间体环境透射电子显微镜

Conscious or unconscious:The impact of sedation choice on colon adenoma detection

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World Journal of Gastroenterology 2011年第34期17卷 3912-3915页

作者： Mark Metwally Nicholas Agresti William B Hale Victor Ciofoaia Ryan O＇Connor Michael B Wallace jonathan Fine Yun wang Seth A Gross Department of Gastroenterology Norwalk Hospital 34 Stevens St. Norwalk CT 06850 United States Department of Gastroenterology Mayo Clinic 4500 San Pablo Road FL 32224 United States Department of Statistics Yale University 333 Cedar Street New Haven CT 06510 USA 34 Stevens St. Norwalk CT 06850 United States

AIM: To determine if anesthesiologist-monitored useof propofol results in improved detection of adenomaswhen compared with routine conscious sedation. METHODS: This retrospective study was conductedat two separate hospital-based endoscopy units whereapproximately 12 000 endoscopic procedures are permed annually, with one endoscopy unit exclusivelyusing anesthesiologist-monitored propofol. Three thousand two hundred and fifty-two patients underwent initial screening or surveillance colonoscopies. Our primaryend point was the adenoma detection rate, def ined asthe number of patients in whom at least one adenomawas found, associated with the type of sedation. RESULTS: Three thousand two hundred and fi ftytwooutpatient colonoscopies were performed by fi ve selected endoscopists. At least one adenoma was detected in 27.6% of patients (95% CI = 26.0-29.1) with no difference in the detection rate between the anesthes-ologist propofol and group and the gastroenterologist-midazolam/fentanyl group (28.1% vs 27.1%, P = 0.53). CONCLUSION: The type of sedation used during colonoscopy does not affect the number of patients in whom adenomatous polyps are detected.

关键词：镇静胃镜检查肠腺检测结果异丙酚结肠镜网络连接检出率

一种用二氧六环制备紫杉醇冻干制剂的简易方法

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Science China Materials 2023年第6期66卷 2513-2522页

作者：孙勃旸邵帅 Sanjana Ghosh 黎杰鑫王晓洁李昌宁 Breandan Quinn Paschalis Alexandridis jonathan F.Lovell 张育淼 School of Chemical Engineering and Technology Key Laboratory of Systems Bioengineering(Ministry of Education)Frontiers Science Center for Synthetic Biology(Ministry of Education)Tianjin UniversityTianjin 300350China Translational Medicine Center The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450000China Department of Biomedical Engineering The State University of New York at BuffaloBuffaloNY14260USA Department of Chemical and Biological Engineering The State University of New York at BuffaloBuffaloNY14260USA

第二代紫杉醇卡巴他赛(CTX)由于对P-gp糖蛋白的亲和力较低,具有不易产生耐药性等优点,被成功地应用于治疗耐药性前列腺癌的临床治疗中.由于CTX的疏水性较高,临床使用的制剂是由液体表面活性剂Tween-80和乙醇组成的(Tween-80与CTX的质量... 详细信息

第二代紫杉醇卡巴他赛(CTX)由于对P-gp糖蛋白的亲和力较低,具有不易产生耐药性等优点,被成功地应用于治疗耐药性前列腺癌的临床治疗中.由于CTX的疏水性较高,临床使用的制剂是由液体表面活性剂Tween-80和乙醇组成的(Tween-80与CTX的质量比为27:1).而Tween-80可能在血液中导致溶血问题,引起过敏反应.在此工作中,我们报道了一种只用少量表面活性剂(pluronic F127与CTX的质量比为3:1)的冻干CTX的制剂:CTX和Pluronic F127一起溶解在由水和1,4-二恶烷(两种常用的冷冻干燥溶剂)组成的混合溶剂系统中制成的冻干粉.胶束状态下的溶剂系统可以经过无菌过滤膜达到除菌效果,结果表明在5%和高于60%的1,4-二恶烷浓度下通过过滤才能达到理想的过滤效果.冻干CTX制剂和重溶胶束的特性取决于共溶剂/溶剂比和F127与CTX的比例,并且能够通过调整比例来调节纳米颗粒的尺寸.用60%的1,4-二恶烷溶解质量比为3:1的F127/CTX所得的冻干CTX产物,重溶后的胶束在水相中能稳定至少三小时.在对小鼠进行静脉给药后,血液中的CTX浓度不依赖于胶束的粒径大小,并且血液代谢和纯Tween-80制剂类似.小鼠抗肿瘤实验表明小鼠体内MIA Paca-2肿瘤抑制功效与Tween-80制剂相似.综上所述,此工作报道了一种简单的冻干方法用于制备紫杉醇药物制剂,具有制备方法高效和表面活性剂添加量低等优点.

关键词：抗肿瘤实验二氧六环肿瘤抑制溶剂系统静脉给药紫杉醇无菌过滤药物制剂

Compact prototype microfabricated gas chromatographic analyzer for autonomous determinations of VOC mixtures at typical workplace concentrations

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Microsystems & Nanoengineering 2018年第1期4卷 390-399页

作者： Junqi wang jonathan Bryant-Genevier Nicolas Nuñovero Chengyi Zhang Bruce Kraay Changhua Zhan Kee Scholten Robert Nidetz Sanketh Buggaveeti Edward T.Zellers Department of Chemistry University of MichiganAnn ArborMI 48109USA Department of Environmental Health Sciences University of MichiganAnn ArborMI 48109USA Applied Physics Program University of MichiganAnn ArborMI 48109USA Department of Mechanical Engineering University of MichiganAnn ArborMI 48109USA Center for Wireless Integrated MicroSensing and Systems University of MichiganAnn ArborMI 48109USA

This report concerns a benchtop prototype instrument containing a gas chromatographic microanalytical system(μGC)designed for the selective determination of multiple airborne volatile organic compounds(VOCs)at concentrations in the vicinity of recommended occupational exposure *** core microsystem consists of a set of discrete Si-microfabricated devices:a dualcavity,adsorbent-packed micro-preconcentrator-focuser(μPCF)chip that quantitatively captures and thermally desorbs/injects VOCs with vapor pressures between~0.03 and 13 kPa;tandem micro-column(μcolumn)chips with cross-linked PDMS wall-coated stationary phases capable of temperature-programmed separations;and an integrated array of fiveμchemiresistors(μCR)coated with different thiolate-monolayer protected gold nanoparticle(MPN)interface films that quantifies and further differentiates among the analytes by virtue of the response patterns *** key components include a pre-trap for low-volatility interferences,a split-flow injection valve,and an onboard He carrier–gas *** assembled unit measures 19×30×14 cm,weighs~3.5 kg,operates on AC power,and is laptop/LabVIEW ***-and system-level tests of performance demonstrated injection bandwidths o1 s,aμcolumn capacity of≥8μg injected mass,linear calibration curves,no humidity effects,excellent medium-term(that is,1 week)reproducibility,autonomous operation for 8 h,detection limits below Threshold Limit Values(TLV)for 10 mL air samples collected in 1 min,and response patterns that enhanced vapor *** determination of a 17-VOC mixture in the presence of seven interferences was performed in 4 *** augur well for adapting the microsystem to an all-MEMS wearableμGC currently under parallel development.

关键词： gas chromatography micro-GC microsystem mixtures sensor array VOCs

Simplified Fast Transient Control in Coolerless Pump EDFA for Metro Applications

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光学学报 2003年第S1期23卷 -页

作者： J.J. Pan Wei wang Xiangdong Qiu Mingjie Zhang Kejian Guan Joy Jiang jonathan Zhang Lightwaves 2020 Inc. 1323 Great Mall Drive Milpitas CA 95035 USALightwaves 2020 Inc. 1323 Great Mall Drive Milpitas CA 95035 USALightwaves 2020 Inc. 1323 Great Mall Drive Milpitas CA 95035 USALightwaves 2020 Inc. 1323 Great Mall Drive Milpitas CA 95035 USALightwaves 2020 Inc. 1323 Great Mall Drive Milpitas CA 95035 USALightwaves 2020 Inc. 1323 Great Mall Drive Milpitas CA 95035 USALightwaves 2020 Inc. 1323 Great Mall Drive Milpitas CA 95035 USA

A novel optical transient suppression technique to dramatically reduce gain variation of EDFA with un-cooled pump is demonstrated experimentally, showing excellent performance of 50us transient time with no more than ... 详细信息

关键词： EDFA of Simplified Fast Transient Control in Coolerless Pump EDFA for Metro Applications for in

Low sample volume origami-paper-based graphene-modified aptasensors for label-free electrochemical detection of cancer biomarker-EGFR

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Microsystems & Nanoengineering 2020年第1期6卷 982-990页

作者： Yang wang Shuai Sun Jinping Luo Ying Xiong Tao Ming Juntao Liu Yuanyuan Ma Shi Yan Yue Yang Zhugen Yang Julien Reboud Huabing Yin jonathan MCooper Xinxia Cai State Key Laboratory of Transducer Technology Institute of ElectronicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100190China Key laboratory of Carcinogenesis and Translational Research(Ministry of Education) Department of Thoracic Surgery IIPeking University Cancer Hospital&InstituteBeijing 100142China Division of Biomedical Engineering James Watt School of EngineeringUniversity of GlasgowOakfield AvenueGlasgow G128LTUnited Kingdom

In this work,an electrochemical paper-based aptasensor was fabricated for label-free and ultrasensitive detection of epidermal growth factor receptor(EGFR)by employing anti-EGFR aptamers as the bio-recognition *** device used the concept of paper-folding,or origami,to serve as a valve between sample introduction and detection,so reducing sampling volumes and improving operation ***-functionalized graphene(NH 2-GO)/thionine(THI)/gold particle(AuNP)nanocomposites were used to modify the working electrode not only to generate the electrochemical signals,but also to provide an environment conducive to aptamer *** characterization revealed that the formation of an insulating aptamer–antigen immunocomplex would hinder electron transfer from the sample medium to the working electrode,thus resulting in a lower *** experimental results showed that the proposed aptasensor exhibited a linear range from 0.05 to 200 ngmL^(−1)(R^(2)=0.989)and a detection limit of 5pgmL^(−1) for *** analytical reliability of the proposed paper-based aptasensor was further investigated by analyzing serum samples,showing good agreement with the gold-standard enzyme-linked immunosorbent assay.

关键词： electrochemical sample free

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共轭链对噻咯电致化学发光效率的影响

中国科学：化学 2022年第9期52卷 1737-1746页

作者：覃晓丽杨柳青 Darshil Patel 王鑫 Kenneth Chu jonathan R.Adsetts 张丛洋 Brian L.Pagenkopf 丁志峰 Department of Chemistry Western UniversityLondon N6A 3K7 湖南农业大学化学与材料科学学院长沙410128 凯莱英医药集团(天津)股份有限公司北京分公司北京100020

噻咯衍生物是一类重要的杂环化合物,在发光二极管和电致化学发光(ECL)传感器方面具有潜在的应用前景.为了进一步获得增强ECL性能的噻咯衍生物,本文报道了两种噻咯-噻吩共聚物在湮灭和共反应物反应中的绝对和相对电化学发光效率.通过电... 详细信息

噻咯衍生物是一类重要的杂环化合物,在发光二极管和电致化学发光(ECL)传感器方面具有潜在的应用前景.为了进一步获得增强ECL性能的噻咯衍生物,本文报道了两种噻咯-噻吩共聚物在湮灭和共反应物反应中的绝对和相对电化学发光效率.通过电位扫描和电位脉冲,利用电化学发光-电压曲线、电化学发光-时间曲线和电化学发光光谱法研究了其ECL机理,并讨论了共轭体系和空间位阻效应对ECL效率的影响.结果表明,自由基的稳定性和反应性是影响两种噻咯-噻吩共聚物ECL效率的两个主要因素.与噻咯-噻吩单体相比,噻咯-噻吩共聚物的ECL效率主要受空间位阻效应的影响.大多数电化学发光研究都使用[Ru(bpy)_(3)]^(2+)作为标准来测定ECL研究中的相对发光效率.考虑到[Ru(bpy)_(3)]^(2+)与其他发光团在自由基行为上的差异,本文测量绝对电化学发光效率,比相对发光效率更准确.

关键词：噻咯-噻吩共聚物电化学发光 ECL光谱学绝对电化学发光效率相对电化学发光效率

A review of recent advances(2018–2021)on tropical cyclone intensity change from operational perspectives,part 1:Dynamical model guidance

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Tropical Cyclone Research and Review 2023年第1期12卷 30-49页

作者： Zhan Zhang Weiguo wang James D.Doyle jonathan Moskaitis William A.Komaromi Julian Heming Linus Magnusson John P.Cangialosi Levi Cowan Michael Brennan Suhong Ma Ananda Kumar Das Hosomi Takuya Peter Clegg Thomas Birchard John A.Knaff John Kaplan Mrutyunjay Mohapatra Monica Sharma Ikegami Masaaki Liguang Wu Eric Blake NOAA/NWS/NCEP Environmental Modeling Center USA SAIC@NOAA/NWS/NCEP Environmental Modeling Center USA Naval Research Laboratory USA Met Office UK ECMWF ReadingUK NOAA/NWS/NCEP National Hurricane Center USA Joint Typhoon Warning Center USA China Meteorological Administration China Indian Meteorological Department India Japan Meteorological Agency Japan Bureau of Meteorology Australia Central Pacific Hurricane Center USA NOAA Center for Satellite Applications and Research USA NOAA/AOML Hurricane Research Division USA Fudan University ShanghaiChina IMSG@NOAA/NWS/OSTI USA

This review summarizes the rapporteur report on tropical cyclone(TC)intensity change from the operational perspective,as presented to the 10th International Workshop on TCs(IWTC-10)held in Bali,Indonesia,from Dec.5–9,*** accuracy of TC intensity forecasts issued by operational forecast centers depends on three aspects:real-time observations,TC dynamical model forecast guidance,and techniques and methods used by *** rapporteur report covers the progress made over the past four years(2018–2021)in all three *** review focuses on the progress of dynamical model forecast *** companion paper(Part II)summarizes the advance from operational *** dynamical model forecast guidance continues to be the main factor leading to the improvement of operational TC intensity ***,we describe recent advances and developments of major operational regional dynamical TC models and their intensity forecast performance,including HWRF,HMON,COAMPS-TC,Met Office Regional Model,CMA-TYM,and newly developed *** performance of global dynamical models,including NOAA's GFS,Met Office Global Model(MOGM),JMA's GSM,and IFS(ECMWF),has also been improved in recent years due to their increased horizontal and vertical resolution as well as improved data assimilation *** challenging cases of rapid intensification are presented and discussed.

关键词： Dynamical models Intensity forecast Operational forecasts Tropical cyclone