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弗罗斯特诗歌“万事万物好景不长”的风格与哲理(英文)

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外国文学研究 2008年第4期30卷 112-119页

作者：郭萍布莱恩·m.理德中国地质大学(武汉)外语学院美国华盛顿大学英语副教授

罗伯特·弗罗斯特的诗歌既有20世纪的"音调",又有接近于传统诗歌的诗体。通过使用简单的口语和传统的韵律,弗罗斯特形成了自己独特的风格。本文试从四个方面对他的诗歌"万事万物好景不长"进行探讨:1)诗歌的选词特点;2)诗歌的单音节词;3... 详细信息

罗伯特·弗罗斯特的诗歌既有20世纪的"音调",又有接近于传统诗歌的诗体。通过使用简单的口语和传统的韵律,弗罗斯特形成了自己独特的风格。本文试从四个方面对他的诗歌"万事万物好景不长"进行探讨:1)诗歌的选词特点;2)诗歌的单音节词;3)诗歌的句法结构;4)诗歌的韵律模式。研究发现,此诗外在结构简洁明了,但深层结构错综复杂。读者只有细细品读才能真正了解此诗的深刻哲理。

关键词：罗伯特·弗罗斯特风格哲理 “万事万物好景不长”

m.senchym.l stem.cell-based TRAIL delivery inhibits the m.tastatic state of clinical therapy-resistant progressive neuroblastom.

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World Journal of Pediatrics 2024年第3期20卷 287-293页

作者： Dinesh Babu Som.sundaram.Andrew m.her Sheeja Aravindan Zhongxin Yu brian m.esch Natarajan Aravindan Departm.nt of Radiation Oncology University of Oklahoma Health Sciences CenterOklahoma CityOKUSA Stephenson Cancer Center Oklahoma CityOKUSA Departm.nt of Pathology University of Oklahoma Health Sciences CenterOklahoma CityOKUSA Radiation Biology Laboratory University of Oklahoma Health Sciences CenterBSEB 302F941 Stanton L.Young BoulevardOklahoma CityOK 73104USA

Progressive neuroblastom.s(pNBs)that defy current intensive m.ltim.dal clinical therapy(Im.T)are a significant contributor to overall childhood cancer deaths[l].Neuroblastom.s(NBs)that survive first-line Im.T actively evolve to acquire genetic and m.lecular rearrangem.nts and display unparalleled plasticity and evolution,which causes frequent relapses in a rapidly accelerating tim.line[2-4].

关键词： neuroblastom. clinical evolve

New Opportunities for Neutrons in Environm.ntal and Biological Sciences

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Frontiers of Environm.ntal Science & Engineering 2024年第7期18卷 179-186页

作者： Alexander Johs Shuo Qian Leighton Coates brian H.Davison Jam.s G.Elkins Xin Gu Jennifer m.rrell-Falvey Hugh O'Neill Jeffrey m.Warren Eric m.Pierce Kenneth Herwig Oak Ridge National Laboratory Oak RidgeTN37831USA

The use of neutron m.thods in environm.ntal and biological sciences is rapidly em.rging and accelerating with the developm.nt of new instrum.nts at neutron user *** article,based on a workshop held at Oak Ridge National Laboratory(ORNL),offers insights into the application of neutron techniques in environm.ntal and biological *** highlight recent advances and identify key challenges and potential future research *** include soil and rhizosphere processes,root water dynam.cs,plant-m.crobe interactions,structure and dynam.cs of biological system.,applications in synthetic biology and enzym. engineering,next-generation bioproducts,biom.terials and bioenergy,nanoscale structure,and fluid dynam.cs of porous m.terials in *** provide an outlook on em.rging opportunities with an em.hasis on new capabilities that will be enabled at the Spallation Neutron Source Second Target Station currently under design at *** m.ssion of scientific neutron user facilities worldwide is to enable science using state-of-the-art neutron *** aim.to encourage researchers in the environm.ntal and biological research com.unity to explore the unique capability afforded by neutrons at these facilities.

关键词： Neutrons Environm.nt Biology Neutron im.ging Neutron scattering Second Target Station(STS)

聚乳酸无纺布环保PDA类阻燃剂的制备与研究

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聚乳酸无纺布环保PDA类阻燃剂的制备与研究

作者： brian Branch 北京化工大学

学位级别：硕士

石油基聚合物的降解以及其火安全性能是当今世界面临的关键挑战。这是由于石油基聚合物应用广泛,在使用后难以降解,会导致严重的环境污染问题。此外,石油基聚合物大多易燃,易引发火灾对人类的生命安全造成威胁。因此解决这些问题显得相... 详细信息

石油基聚合物的降解以及其火安全性能是当今世界面临的关键挑战。这是由于石油基聚合物应用广泛,在使用后难以降解,会导致严重的环境污染问题。此外,石油基聚合物大多易燃,易引发火灾对人类的生命安全造成威胁。因此解决这些问题显得相当紧迫,需要我们提出能够同时平衡材料环保与阻燃性能的创新解决方案。对于聚合物的降解问题,一种潜在的解决方案是利用和开发同时具有生物安全性和可生物降解的生物基聚合物。然而,相较于石油基聚合物,这些替代品往往在某些方面有性能缺陷（如力学性能et al）。因此,对这些生物基聚合物的研究需要同时兼顾其环境友好的优点并改善其对应性能的缺陷。而在阻燃性能方面,传统的阻燃剂（如含卤阻燃剂）,已被证明具有良好的阻燃效果,但由于其会产生毒副产物,存在环境与健康隐患,因此将开发新型安全无卤的磷系阻燃剂以代替传统的卤系阻燃剂。本研究通过将聚多巴胺（PDA）和磷系阻燃剂应用在聚乳酸（PLA）无纺布,为解决上述问题做出了一定贡献。通过实验发现,PDA涂层与磷系化合物的同时应用可显著提高PLA织物的阻燃性能,且涂层同样具有较高的生物安全性且对环境影响较小。此外,这项工作还凸现了PDA涂层可在PLA中快速高效应用的潜力。主要成果如下:本论文的第一部分是聚多巴胺和磷基化合物THPO作为关键阻燃剂的应用。通过喷雾共沉积方法将THPO引入到聚多巴胺基质中。这种方法显著增强了涂层织物的耐火性。极限氧指数（LOI）从对照织物的18%增加到27.5%。此外,UL-94测试的损坏长度从9.5厘米减少到7.5厘米。值得注意的是,熔体滴落性能得到增强,在测试过程中没有观察到火焰滴落。此外,热重分析显示THPO促进了适度的炭形成。仅存在聚多巴胺涂层时,样品的总烟雾产生量和烟雾产生速率均显着降低,导致Fig RA值从22.2 k W/m.s降低至14.7 k W/m.s;进一步凸显了该方法的有效性。抗紫外线测试显示,20小时内涂层样品的质量平均损失1.5%,而对照PLA织物的质量损失超过15%。本研究的第二部分重点是使用聚多巴胺作为功能涂层和聚磷酸铵（APP）作为磷基阻燃剂,在PLA织物表面形成称为PDA-Cu-APP的金属络合物。这种创新方法证明了进一步增强了织物的耐火性能,熔体滴落性能得到改善,在UL-94垂直燃烧测试中未观察到熔滴。极限氧指数（LOI）从对照PLA的18%显着增加至29.2%。此外,热重分析表明,炭残留物从对照PLA织物的1.5%增加到9.0%。Fig RA值从22.2 k W/m.s降低至14.7 k W/m.s,降低了33%。涂层中的PDA组分显着提高了抗紫外线性能,降低了质量损失率,紫外老化后涂层织物的拉伸强度是对照PLA织物的4倍。总之,本研究将生物基聚多巴胺涂层与磷基阻燃剂相结合以增强PLA织物的防火安全性,保持了环境可持续性目标的可行性。这些发现为未来开发生物基聚合物材料阻燃解决方案的研究提供了有效的途径。

关键词：阻燃剂聚多巴胺聚乳酸聚磷酸铵三(羟甲基)膦氧化物无纺布

Advancem.nts in endoscopic hem.stasis for non-variceal upper gastrointestinal bleeding

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World Journal of Gastrointestinal Endoscopy 2024年第7期16卷 376-384页

作者： Xue Jing Li brian m.Fung Departm.nt of Gastroenterology and Hepatology Banner-University Medical Center PhoenixPhoenixAZ 85006United States

Non-variceal upper gastrointestinal(GI)bleeding is a significant cause of m.rbidity and ***,through-the-scope(TTS)clips,therm.l therapy,and injection therapies are used to treat GI *** this review,we provide an overview of novel endoscopic treatm.nts that can be used to achieve ***,we discuss the efficacy and applicability of over-thescope clips,hem.static agents,TTS doppler ultrasound,and endoscopic ultrasound,each of which offer an effective m.thod of reducing rates of GI rebleeding.

关键词： Doppler probe Endoscopic ultrasound Endoscopy techniques Gastrointestinal bleeding Hem.spray Hem.stasis Hem.static agents Over-the-scope clips Ovesco

Finding the m.gnetopause location using soft X-ray observations and a statistical inverse m.thod

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Earth and Planetary Physics 2024年第1期8卷 184-203页

作者： Gonzalo Cucho-Padin Hyunju Connor Jaewoong Jung brian Walsh David G.Sibeck Space Weather Laboratory NASA Goddard Space Flight CenterGreenbeltMDUSA Departm.nt of Physics The Catholic University of AmericaWashingtonDCUSA Geospace Physics Laboratory NASA Goddard Space Flight CenterGreenbeltMDUSA Astronom. Departm.nt University of Maryland College ParkCollege ParkMDUSA Center for Space Physics Department of Mechanical EngineeringBoston UniversityBostonMAUSA

Variability in the location and shape of the dayside m.gnetopause is attributed to m.gnetic reconnection,a fundam.ntal process that enables the transfer of m.ss,energy,and m.m.ntum.from.the solar wind into the *** spatial and tem.oral properties of the m.gnetopause,under varying solar and m.gnetospheric conditions,rem.in largely unknown because em.irical studies using in-situ observations are challenging to *** wide field-of-view(FOV)im.ging is the only m.ans to sim.ltaneously observe the spatial distribution of the plasm. properties over the vast dayside m.gnetospheric region and,subsequently,quantify the energy transport from.the interplanetary m.dium.into the terrestrial *** upcom.ng m.ssions,ESA/CAS Sm.LE and NASA’s LEXI will provide wide-field im.gery of the dayside m.gnetosheath in soft X-rays,an em.ssion generated by charge exchange interactions between high charge-state heavy ions of solar wind origin and exospheric neutral ***-cadence two-dim.nsional observations of the m.gnetosheath will allow the estim.tion of dynam.c properties of its inner boundary,the m.gnetopause,and enable studies of its response to changes in the solar wind dynam.c pressure and interplanetary m.gnetic field *** work introduces a statistically-based estim.tion approach based on inverse theory to estim.te the spatial distribution of m.gnetosheath soft X-ray em.ssivities and,with this,identify the location of the m.gnetopause over the Sun−Earth *** do so,we sim.late the m.gnetosheath structure using the m.D-based OpenGGCm.m.del and generate synthetic soft X-ray im.ges using LEXI’s orbit and attitude *** results show that 3-D estim.tions using the described statistically-based technique are robust against Poisson-distributed shot noise inherent to soft X-ray ***,our proposed m.thodology shows that the accuracy of both three-dim.nsional(3-D)estim.tion and the m.gnetopause standoff distance calculation hi

关键词： m.gnetopause soft X-ray tom.graphy

An analysis on ＂Nothing Gold Can Stay＂ from.the perspective of stylistic

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汉口学院学报 2015年第1期8卷 15-22页

作者： GUO Ping brian m. reed Foreign Language Departm.nt Hankou University Hubei Wuhan 430212 China Foreign Language Departm.nt University of Washiongton SeattleWA98195-4330 USA)

Does the use of double horm.ne replacem.nt therapy for traum. patient organ donors im.rove organ recovery for transplant

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World Journal of Transplantation 2024年第2期14卷 119-125页

作者： Eden m.Gallegos Tanner reed Paige Deville Blake Platt Claudia Leonardi Lillian Bellfi Jessica Dufrene Saad Chaudhary John Hunt Lance Stuke Patrick Greiffenstein Jonathan Schoen Alan m.rr Anil Param.sh Alison A Sm.th Departm.nt of Physiology Louisiana State University Health Sciences Center New OrleansNew OrleansLA 70124United States Departm.nt of m.dicine Louisiana State University Health Sciences Center New OrleansNew OrleansLA 70112United States Departm.nt of Surgery Louisiana State University Health Sciences Center New OrleansNew OrleansLA 70112United States Departm.nt of Traum. Surgery Tacoma General HospitalTacoma 98405United States Departm.nt of Public Health Louisiana State University Health Sciences Center New OrleansNew OrleansLA 70112United States Departm.nt of Donation Services Louisiana Organ Procurement AgencyCovingtonLA 70433United States Departm.nt of Surgery Tulane Transplant InstituteTulane University School of MedicineNew OrleansLA 70112United States

BACKGROUND With an ongoing dem.nd for transplantable organs,optim.zation of donor m.nagem.nt protocols,specifically in traum. populations,is im.ortant for obta-ining a high yield of viable organs per *** m.nagem.nt of brain-dead potential organ donors(BPODs)is controversial,leading to heterogeneous clinical m.nagem.nt *** studies have shown that when levo-thyroxine was com.ined with other treatm.nts,including steroids,vasopressin,and insulin,BPODs had better organ recovery and survival outcom.s were increased for transplant *** To determ.ne if levothyroxine use in com.ination with steroids in BPODs increased the num.er of organs donated in traum. *** A retrospective review of adult BPODs from.a single level 1 traum. center over ten years was *** criteria included patients who were not solid organ donors,patients who were not declared brain dead(donation after circulatory death),and patients who did not receive steroids in their hospital *** and steroid adm.nistration,the num.er of organs donated,the types of organs donated,and dem.graphic inform.tion were *** analyses were perform.d with Pm.t inclusion criteria,69(78%)of whom.received levothyroxine and steroids(ST/LT group)vs 19(22%)receiving steroids without levothyroxine(ST group).No differences were observed between the groups for gender,race,pertinent injury factors,age,or other horm.ne therapies used(P>0.05).In the ST/LT group,68.1%(n=47)donated a high yield(3-5)of organ types per donor com.ared to 42.1%(n=8)in the ST group(P=0.038).There was no difference in the total num.er of organ types donated between the groups(P=0.068).CONCLUSION This study suggests that com.ining levothyroxine and steroid adm.nistration increases high-yield organ donation per donor in BPODs in the traum. patient *** to this study include

关键词： Organ donation Traum. Brain death Levothyroxine Horm.ne replacem.nt therapy Steroids Organ donor Retrospective

Why and how to use the SeqCode

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m.ife 2024年第1期3卷 1-13页

作者： Wiliam.B.Whitm.n m.ria Chuvochina brian P.Hedlund Konstantinos T.Konstantinidis m.rike Palm.r Luis m.Rodriguez-R lain Sutcliffe Fengping Wang Deparm.nt of m.crobioogy University of GeorgiaAthensGeorgiaUAA Schoolof Chem.stry and m.lecular Biosciences Australian CentreforEogenomicsThe Universty of QueenslandSt LuciaAustralia University of Nevada Las Vegas Las VegasNevadaUSA Schol of Civil and Environm.ntal Engineering and School of Biological SciencesGeorgia Institute of TechnologyAtlantaGeorgiaUSA Departm.nt of m.crobiology University of ManitobaWinnipegManitobaCanada School of Life Sciences University of Nevada Las VegasLas VegasNevadaUSA Departm.nt of m.crobiology and Digital Science Center(DiSC) University of InnsbruckInnsbruckAustria Faculty of Health&Life Sciences Northumbria UniversityNewcastle upon TyneUK School of Oceanography International Center for Deep Life InvestigationShanghai Jiao Tong UniversityShanghaiChina

The SeqCode,form.lly called the Code of Nom.nclature of Prokaryotes Described from.Sequence Data,is a new code of nom.nclature in which genom. sequences are the nom.nclatural types for the nam.s of prokaryotic *** sim.lar to the International Code of Nom.nclature of Prokaryotes(ICNP)in structure and rules of priority,it does not require the deposition of type strains in international culture ***,it allows for the form.tion of perm.nent nam.s for uncultured prokaryotes whose nearly com.lete genom. sequences have been obtained directly from.environm.ntal DNA as well as other prokaryotes that cannot be deposited in culture *** the diversity of uncultured prokaryotes greatly exceeds that of readily culturable prokaryotes,the SeqCode is the only code suitable for nam.ng the m.jority of prokaryotic *** start date of the SeqCode was January 1,2022,and the online Registry(https://***)was created to ensure valid publication of *** SeqCode recognizes all nam.s validly published under the ICNP before *** that date,nam.s validly published under the SeqCode com.ete with ICNP nam.s for *** a result,species can have only one nam.,either from.the SeqCode or ICNP,enabling effective com.unication and the creation of unified taxonom.es of uncultured and cultured *** SeqCode is adm.nistered by the SeqCode Com.ittee,which is com.rised of the SeqCode Com.unity and elected adm.nistrative *** with an interest in the system.tics of prokaryotes is encouraged to join the SeqCode Com.unity and participate in the developm.nt of this resource.

关键词： genom. sequences m.tagenom.-assem.led genom.s nom.nclature SeqCode