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Dielectric Mie voids: confining light in air

Light(Science & Applications) 2023年第2期12卷 156-167页

作者： Mario Hentsche Kirll Koshelev Florian Sterl Steffen Botho Julian Karst Lida Shamsafar Thomas Weiss Yuri Kivshar Harald Giessen 4th Physics Institute and Research center SCoPE University of StuttgartPfaffenwaldring 5770569 StuttgartGermany Nonlinear Physics Centre Research School of PhysicsAustralian National UniversityCanberraACT 2601Australia institute of Physics University of Grazand NAWI GrazUniversitatsplatz 58010 GrazAustria

Manipulating light on the nanoscale has become a central challenge in metadevices,resonant surfaces,nanoscale optical sensors,and many more,and it is largely based on resonant light confinement in dispersive and lossy metals and ***,we experimentally implement a novel strategy for dielectric nanophotonics:Resonant subwavelength localized confinement of light in *** demonstrate that voids created in high-index dielectric host materials support localized resonant modes with exceptional optical *** to the confinement in air,the modes do not suffer from the loss and dispersion of the dielectric host *** experimentally realize these resonant Mie voids by focused ion beam milling into bulk silicon wafers and experimentally demonstrate resonant light confinement down to the UV spectral range at 265 nm(4.68 eV).Furthermore,we utilize the bright,intense,and naturalistic colours for nanoscale colour *** voids will thus push the operation of functional high-index metasurfaces into the blue and UV spectral *** combination of resonant dielectric Mie voids with dielectric nanoparticles will more than double the parameter space for the future design of metasurfaces and other micro-and nanoscale optical *** particular,this extension will enable novel antenna and structure designs which benefit from the full access to the modal field inside the void as well as the nearly free choice of the high-index material for novel sensing and active manipulation strategies.

关键词： dielectric utilize exceptional

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The Huanan Seafood Wholesale Market in Wuhan was the early epicenter of the COVID-19 pandemic

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四川生理科学杂志 2022年第7期44卷 1246-1246页

作者： Michael Worobey Department of Ecology and Evolutionary Biology University of Arizona Tucson AZ 85721 USA. Department of Immunology and Microbiology The Scripps Research Institute La Jolla CA 92037 USA. W. Harry Feinstone Department of Molecular Microbiology and Immunology Johns Hopkins Bloomberg School of Public Health Baltimore MD 21205 USA. Bioinformatics and Systems Biology graduate Program University of California San Diego La Jolla CA 92093 USA. Department of Biomedical Informatics University of California San Diego La Jolla CA 92093 USA. Department of Human Genetics University of Utah School of Medicine Salt Lake City UT 84112 USA. Vaccine and Infectious Disease Organization University of Saskatchewan Saskatoon SK S7N 5E3 Canada. center for Global Health Science and Security Georgetown University Washington DC 20057 USA. Department of Zoology University of Oxford Oxford OX1 3SZ UK. Wildlife Conservation Research Unit Department of Zoology The Recanati-Kaplan Centre University of Oxford Oxford OX13 5QL UK. Pandemic and Disaster Preparedness Centre Erasmus University Medical Center 3015 CE Rotterdam Netherlands. Department of Viroscience Erasmus University Medical Center 3015 CE Rotterdam Netherlands. Department of Biostatistics Fielding School of Public Health University of California Los Angeles Los Angeles CA 90095 USA. Department of Human Genetics David Geffen School of Medicine University of California Los Angeles Los Angeles CA 90095 USA. Department of Computational Medicine David Geffen School of Medicine University of California Los Angeles Los Angeles CA 90095 USA. Department of Medicine University of California San Diego La Jolla CA 92093 USA. Department of Microbiology Immunology and Transplantation Rega Institute for Medical Research KU Leuven 3000 Leuven Belgium. Global Virus Network (GVN) Baltimore MD 21201 USA. MRC-university of Glasgow center for Virus Research Glasgow G61 1QH UK. Tulane university School of Medicine Department of Mi

Understanding how severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)emerged in 2019 is critical to preventing zoonotic outbreaks before they become the next *** Huanan Seafood Wholesale Market in Wuhan,China,was identified as a likely source of cases in early reports but later this conclusion became *** show the earliest known COVID-19 cases from December 2019,including those without reported direct links,were geographically centered on this *** report that live SARS-CoV-2 susceptible mammals were sold at the market in late 2019 and,within the market,SARS-CoV-2-positive environmental samples were spatially associated with vendors selling live mammals.

关键词： Market likely Wuhan

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The molecular epidemiology of multiple zoonotic origins of SARS-CoV-2

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四川生理科学杂志 2022年第7期44卷 1299-1299页

作者： Jonathan E Pekar Bioinformatics and Systems Biology graduate Program University of California San Diego La Jolla CA 92093 USA. Department of Biomedical Informatics University of California San Diego La Jolla CA 92093 USA. Department of Human Genetics David Geffen School of Medicine University of California Los Angeles Los Angeles CA 90095 USA. Department of Immunology and Microbiology The Scripps Research Institute La Jolla CA 92037 USA. Department of Computer Science and Engineering University of California San Diego La Jolla CA 92093 USA. Department of Mathematics University of California San Diego La Jolla CA 92093 USA. Department of Ecology and Evolutionary Biology University of Arizona Tucson AZ 85721 USA. W. Harry Feinstone Department of Molecular Microbiology and Immunology Johns Hopkins Bloomberg School of Public Health Baltimore MD 21205 USA. New York City Public Health Laboratory New York City Department of Health and Mental Hygiene New York NY 11101 USA. Department of Microbiology Institute for Viral Diseases Biosafety Center College of Medicine Korea University Seoul South Korea. BK21 graduate Program Department of Biomedical Sciences Korea University College of Medicine Seoul 02841 Republic of Korea. National Public Health Laboratory National Centre for Infectious Diseases Singapore. Malaysia Genome and Vaccine Institute Jalan Bangi 43000 Kajang Selangor Malaysia. Department of Medicine University of California San Diego La Jolla CA 92093 USA. Department of Microbiology and Immunology School of Medicine Tulane University New Orleans LA 70112 USA. Zalgen Labs Frederick MD 21703 USA. Global Virus Network (GVN) Baltimore MD 21201 USA. Sydney Institute for Infectious Diseases School of Life and Environmental Sciences and School of Medical Sciences The University of Sydney Sydney NSW 2006 Australia. Institute of Evolutionary Biology University of Edinburgh King’s Buildings Edinburgh EH9 3FL UK. Department of Biomathematics David Geffen Sch

Understanding the circumstances that lead to pandemics is important for their prevention. Here, we analyze the genomic diversity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) early in the coronavirus disease 2019 (COVID-19) pandemic. We show that SARS-CoV-2 genomic diversity before February 2020 likely comprised only two distinct viral lineages, denoted A and B. Phylodynamic rooting methods, coupled with epidemic simulations, reveal that these lineages were the result of at least two separate cross-species transmission events into humans. The first zoonotic transmission likely involved lineage B viruses around 18 November 2019 (23 October-8 December), while the separate introduction of lineage A likely occurred within weeks of this event.

关键词： epidemiology likely acute

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Heat preservation,antifouling,hemostatic and antibacterial aerogel wound dressings for emergency treatment

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Frontiers of Materials Science 2023年第2期17卷 93-103页

作者： Fangling Li Xiaoman Han Dongdong Cao Junxia Yin Li Chen Dongmei Li Lin Cui Zhiyong Liu Xuhong Guo School of Chemistry and Chemical Engineering Shihezi UniversityShihezi 832003China Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi 832003China School of Biomedical Engineering Faculty of Electronic Information and Electrical EngineeringDalian University of TechnologyDalian 116024China School of Medicine Shihezi UniversityShihezi 832003China State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai 200237China

Hemostatic dressings with multiple functions are superior to current hemostatic dressings for use in the complex situation of emergency *** particular,the existing dressings lack consideration for the prevention of hypothermic shock after massive *** this study,gelatin(GN)and oxidized pectin(OP)were used for Schiff base cross-linking,and then polyvinyl alcohol(PVA)solution mixed with hemostatic caffeic acid(CA)was introduced to obtain aerogel substrate material(CB)after ***(PDMS)and silver nanowires(Ag NWs)were used to construct a hydrophobic layer,an antibacterial layer and an infrared reflective layer on both sides of CB to prepare a multifunctional aerogel wound dressing with heat preservation,antifouling,hemostasis and antibacterial properties(PDMS-Ag NW-CB).The results showed that the infrared transmittance of PDMS-Ag NW-CB is almost 0,so that thermal energy loss from the body is *** contact angles with water and blood are 129°and 120°,respectively,which have the effect of *** dressing can absorb blood quickly within 10 min,adhere to and gather platelets,and achieve *** has good antibacterial and ***,PDMS-Ag NW-CB has great potential in application to emergency treatment.

关键词： heat preservation hemostasis antifouling antibacterial wound dressing

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Class number relation between type (l,l/,…, l) function fields over F_q(T) and their subfields

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Science China Mathematics 1995年第6期38卷 674-682页

作者：赵健强 Department of Mathematics University of Science and Technology of China Hefei 230026 China

Let L/Fq(T) be a tame abelian extension of type (l, l,...l). The ratio of the degree zero divisor dass number (as well as the ideal class number) of L to the product of corresponding class numbers of all cydic subfiel... 详细信息

关键词： function field class number prime decomposition ξ-function.

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Development of Cold-Chain for Postharvest Loss Reduction of Chinese Cabbage(Brassica campestris ***)

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Journal of Food Science and Engineering 2021年第1期11卷 9-22页

作者： Rathana Nai Buntong Borarin Tong Socheath Jessie LVipham Glenn MYoung Karen LeGrand Faculty of Agro-Industry Royal University of AgriculturePhnom Penh 12000-12401Cambodia Division of Research and extension Royal University of AgriculturePhnom Penh 12000-12401Cambodia Mid-Campus Drive North Kansas State UniversityWeber HallManhattanKS 66506-8028United States Department of Food Science and Technology College of Agricultural and Environmental ScienceUniversity of California-Davis595 Hilgard LaneDavisCA 95616United States Science and Mathematics Division Department of BiologySierra College5100 Sierra College BoulevardRocklinCA 95677United States

Cold-chain is a well-known method for reducing postharvest losses and low-cost cooling technology has not previously been tested as part of postharvest handling in *** objective of this study was to measure postharvest loss,quality changes,and safety concerns of Chinese cabbage(Brassica campestris ***),during transportation using a cold-chain and compared to current farmers’employing ambient-chain *** quality and safety of Chinese cabbage were further evaluated by using ambient storage and Coolbot-powered cold chamber storage with and without modified atmosphere packaging(MAP).The samples were transported from farm sources in Battambang Province to a Phnom Penh specialty wholesale *** loss was evaluated by measuring weight loss and visual quality measurements,in addition to various physiochemical and nutritional quality *** addition,food safety was evaluated by quantifying total coliforms and Enterobacteriaceae,as well as the Salmonella spcies,and Escherichia *** results revealed that the cold-chain avoided postharvest loss,as indicated by produce weight gain of 14%on market arrival due to rehydration while inside the ice box during *** contrast,the traditional practice of ambient transport(28-31°C,62-78%relative humidity)resulted in very high postharvest loss,comprising 11%weight loss and 10%visual quality loss,for a total loss of 21%.Moreover,leaf yellowing found no marked influence on shelf life as L*,a*and b*values did not greatly differ with *** total soluble solids(TSS),titratable acidity(TA),pH and vitamin C content were not significantly affected during *** safety indicators(coliforms,Enterobacteriaceae,Salmonella and Escherichia coli)were lower in cold-chain storage than ambient-chain with lower counts of coliform bacteria,Enterobacteriaceae,and Salmonella *** traditionally handled *** coli was detected only in cold-chain *** had no effec

关键词： Chinese cabbage postharvest practices postharvest loss Coolbot storage ice box packaging MAP food safety

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Jointly Optimized Spatial Histogram UNET Architecture(JOSHUA)for Adipose Tissue Segmentation

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Biomedical Engineering Frontiers 2022年第1期3卷 248-261页

作者： Joshua K.Peeples Julie F.Jameson Nisha M.Kotta Jonathan M.Grasman Whitney L.Stoppe Alina Zare Department of Electrical and Computer Engineering University of FloridaGainesvilleFL 32611USA Department of Chemical Engineering University of FloridaGainesvilleFL 32611USA J.Crayton Pruitt Family Department of Biomedical Engineering University of FloridaGainesvilleFL 32611USA Department of Biomedical Engineering New Jersey Institute of TechnologyUniversity HeightsNewarkNJ 07102USA

*** aim to develop a machine learning algorithm to quantify adipose tissue deposition at surgical sites as a function of biomaterial *** *** our knowledge,this study is the first investigation to apply convolutional neural network(CNN)models to identify and segment adipose tissue in histological images from silk fibroin biomaterial *** designing biomaterials for the treatment of various soft tissue injuries and diseases,one must consider the extent of adipose tissue *** this work,we analyzed adipose tissue accumulation in histological images of sectioned silk fibroin-based biomaterials excised from rodents following subcutaneous implantation for 1,2,4,or 8 *** strategies for quantifying adipose tissue after biomaterial implantation are often tedious and prone to human bias during *** used CNN models with novel spatial histogram layer(s)that can more accurately identify and segment regions of adipose tissue in hematoxylin and eosin(H&E)and Masson’s trichrome stained images,allowing for determination of the optimal biomaterial *** compared the method,Jointly Optimized Spatial Histogram UNET Architecture(JOSHUA),to the baseline UNET model and an extension of the baseline model,attention UNET,as well as to versions of the models with a supplemental attention-inspired mechanism(JOSHUA+and UNET+).*** inclusion of histogram layer(s)in our models shows improved performance through qualitative and quantitative *** results demonstrate that the proposed methods,JOSHUA and JOSHUA+,are highly beneficial for adipose tissue identification and *** new histological dataset and code used in our experiments are publicly available.

关键词： injuries implantation Spatial

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改进实效型试验的报告质量：CONSORT声明的扩充（2）

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英国医学杂志中文版 2009年第3期12卷 174-179页

作者： Merrick Zwarenstein Shaun Treweek Joel J Gagnier Douglas G Altman Sean Tunis Brian Haynes Andrew D Oxman David Moher 汪谋岳(译) Health Services Sciences Surmybrook Hospital Toronto Ontario Canada Insdtute for Clinical Evaluative Sciences Toronto Department of Health Policy Management and Evaluation University of Tomato Toronto Division of International Health (IHCAR) Karolinska Institute Stockholm Sweden Clinical and Population Sciences and Education University of Dundee Dundee Norwegian Centre for Services Oslo Norway Faculty of Medicine University of Tomato Centre for Statistics in Medicine University of Oxford Oxford center for Medical Technology Policy Baltimore MD USA Division of General Internal Medicine Johns Hopkins School of Medicine Baltimore MD center for Healthcare Policy Stanford University School of Medicine Palo Alto CA USA Department of Medicine McMastor University Faculty of Health Sciences Hamilton ON Canada Clinical Epidemiology Program Ottawa Health Research institute Ottawa Canada Department of Epidemiology and Community Medicine Faculty of Medicine university of Ottawa Ottawa 中华医学杂志英文版编辑部

实效型试验旨在为临床实践决策提供依据，但报告得不好会降低其实用性。CONSORT和Practihc小组描述了对CONSORT指南的修改，帮助读者评估研究结果的适用性。

关键词： CONSORT声明报告质量试验临床实践适用性

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改进实效型试验的报告质量：CONSORT声明的扩充（1）

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英国医学杂志中文版 2009年第2期12卷 108-111页

作者： Merrick Zwarenstein Shaun Treweek Joel J Gagnier Douglas G Altman Sean Tunis Brian Haynes Andrew D Oxman David Moher 汪谋岳(译) Health Services Sciences Sunnybrook Hospital Toronto Ontario Canada Institute for Clinical Evaluative Sciences Toronto Depamnent of Health Policy Management and Evaluation University of Toronto Toronto Division of International Health (IHCAR) Karolinska Institute Stockholm Sweden Clinical and Population Sciences and Education University of Dundee Dundee Norwegian Knowledge Centre for the Health Services Oslo Norway Faculty of Medicine University of Toronto Centre for Statistics in Medicine University of Oxford Oxford center for Medical Technology Policy Baltimore MD USA Division of General Internal Medicine Johns Hopkins School of Medicine Baltimore MD center for Heahhcare Policy Stanford University School of Medicine Palo Alto CA USA Department of Clinical Epidemiology and Biostatistics and Department of Medicine McMaster University Faculty of Health Sciences Hamilton ON Canada Clinical Epidemiology Program Ottawa Health Research Institute Ottawa Canada Department of Epidemiology and Community Medicine Faculty of Medicine university of Ottawa Ottawa 中华医学杂志英文版编辑部

关键词： CONSORT声明报告质量试验临床实践适用性

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通用分组网络寻址路由与标识演进方法及系统

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中国科学：信息科学 2023年第8期53卷 1629-1644页

作者：李挥邬江兴韦国华孟详帧白鹤林立宏杨昕伊鹏宗泽斌魏进武朱伏生陆以勤缪伟豪杨伟豪郑泽峰马军锋张明龙张汉裕褚晓理何品翰王泽华北京大学深圳研究生院深圳518055 国家数字交换系统工程技术研究中心郑州450002 鹏城实验室深圳518055 中国电信股份有限公司北京100033 中国联合网络通信有限公司北京100032 广东省新一代通信与网络创新研究院广州510289 华南理工大学电子与信息学院广州510006 香港科技大学电子与计算机工程系中国香港香港中文大学信息工程系中国香港澳门科技大学资讯科技学院中国澳门中国信息通信研究院北京100191 Department of Electrical and Electronic Engineering Auckland University of TechnologyAuckland 1142NewZealand Department of Electronic and Electrical Engineering The University of SheffieldSheffield S102TNUK Department of Electrical and Computer Engineering University of WaterlooWaterloo N2L 3G1Canada Department of Electrical and Computer Engineering The University of British ColumbiaVancouver V6T 1Z2Canada

未来的网络通信需求动态多样,网络层功能也应适时而变,因此对网络可演进性的研究具有重要意义.多标识网络作为一种兼容性极强的网络架构,网络层功能十分丰富,但仍缺少网络演进性设计.本文为多标识网络设计了一种通过标识扩展来支持网络... 详细信息

未来的网络通信需求动态多样,网络层功能也应适时而变,因此对网络可演进性的研究具有重要意义.多标识网络作为一种兼容性极强的网络架构,网络层功能十分丰富,但仍缺少网络演进性设计.本文为多标识网络设计了一种通过标识扩展来支持网络体系不断演进的方案,包括对标识空间进行形式化定义,设计标识回退候选标识的优先级排序算法以及设计支持标识扩展的路由转发协议;并且在ndnSIM网络仿真环境和多标识网络测试床中实现了上述方案,评估了标识扩展方案的可行性和性能.实验结果表明相比于标识扩展机制给网络架构带来的益处,其性能损失在可接受的范围内.

关键词：多标识网络标识扩展网络演进原型系统 ndnSIM仿真

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