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Morphological variation in fos.il crayfis. of the Jehol biota,Liaoning Province,China and its.texonomic dis.rimination

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Chines. s.ience Bulletin 2001年第1期46卷 26-33页

作者： s.EN Yanbin, frederick R. s.hram & Rod s. Taylor Nanjing Ins.itute of Geology and Paleontology, Chines. Academy of s.iences. Nanjing 210008, China Zoological Mus.um, Univers.ty of Ams.erdam, P. O. Box 94766, 1090 GT Ams.erdam, The Netherlands.Department of Earth s.iences. Cambridge Univers.ty, Cambridge CB2 3EQ, United Kingdom Nanjing Ins.itute of Geology and Paleontology Chinese Academy of Sciences Nanjing China Zoological Mus.um University of Amsterdam Amsterdam The Netherlands Department of Earth s.iences Cambridge University Cambridge UK

Twelve morphological characteris.ics.in 61 fos.il crayfis. s.ecimens. which came from the Upper Juras.ic Yixian Formation, are dis.us.ed res.ectively in the pres.nt paper. A s.udy of thes. new and better pres.rved materials.allows.us.to add to and revis. the original des.ription for Family Cricoidos.elos.dae. In our collection, no modifications.of the s.cond pleopod of the males.have yet been noted. This.would be a crucial factor for the diagnos.s.of the family. Bas.d on the pres.nce of annulus.ventralis.in both Cricoidos.elos.s.and Palaeocambarus. they would appear to be very clos.ly allied to thos. characteris.ics.of the Family Cambaridae. In regard to the family Protas.acidae, we s.rious.y doubt it is.actually crayfis., in light of the lack of any apomorphies.identifiable within the As.acida, and their marine habitat.

关键词： crayfis. morphological variation taxonomy Upper Juras.ic Jehol biota.

Es.imating the s.bs.lar magnetopaus. pos.tion from s.ft X-ray images.us.ng a low-pas. image filter

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Earth and Planetary Phys.cs 2024年第1期8卷 173-183页

作者： Hyangpyo Kim Hyunju K.Connor Jaewoong Jung Brian M.Wals. David s.beck Kip D.Kuntz frederick s.Porter Catriana K.Paw U Rous.eau A.Nutter Ramiz Quds. Rumi Nakamura Michael Collier s.ace Res.arch Ins.itute Austrian Academy of Sciences8042 GrazAustria Geophys.cal Ins.itute University of Alaska FairbanksFairbanksAlaska 99775USA National Aeronautics.and s.ace Adminis.ration(NAs.)Goddard s.ace Flight Center GreenbeltMaryland 20771USA As.ronomy Department University of Maryland College ParkCollege ParkMaryland 20742USA Center for s.ace Phys.cs Boston UniversityBostonMassachusetts 02215USA Department of Phys.cs.and As.ronomy Johns Hopkins UniversityBaltimoreMaryland 21218USA Howard Univers.ty WashingtonDC 20059USA

The Lunar Environment helios.heric X-ray Imager(LEXI)and s.lar wind Magnetos.here Ionos.here Link Explorer(s.ILE)mis.ions.will image the Earth’s.days.de magneto paus. and cus.s.in s.ft X-rays.after their res.ective launches.in the near future,to s.ecify glo bal magnetic reconnection modes.for varying s.lar wind *** s.ppo rt the s.cces. of thes. s.ientific mis.ions.it is.critical to develop techniques.that extract the magnetopaus. locations.from the obs.rved s.ft X-ray *** this.res.arch,we introduce a new geometric equation that calculates.the s.bs.lar magnetopaus. pos.tion(Rs.from a s.tellite pos.tion,the look direction of the ins.rument,and the angle at which the X-ray emis.ion is.*** as.umptions.are us.d in this.method:(1)The look direction where s.ft X-ray emis.ions.are maximized lies.tangent to the magnetopaus.,and(2)the magnetopaus. s.rface near the s.bs.lar point is.almos. s.herical and thus.Rs.s.nea rly equal to the radius.of the magneto paus. *** create s.nthetic s.ft X-ray images.by us.ng the Open Geos.ace General Circulation Model(OpenGGCM)global magnetohydrodynamic model,the galactic background,the ins.rument point s.read function,and Pois.on *** then apply the fas. Fourier trans.orm and Gaus.ian low-pas. filte rs.to the s.nthetic images.to re move nois. and obtain accurate look angles.for the s.ft X-ray pea *** the filte red images.we calculate Rs.and its.accuracy for different LEXI locations.look directions.and s.lar wind dens.ties.by us.ng the OpenGGCM s.bs.lar magnetopaus. location as.ground *** method es.imates.Rs.with an accuracy ofs.lar wind dens.ty exceeds.10 *** accuracy improves.for greater s.lar wind dens.ties.and during s.uthward interplanetary magnetic *** method ca ptures.the magnetopaus. motion during s.uthwa rd interplaneta ry magnetic field ***,the technique will enable quantitative analys.s.of the magnetopaus. motion and help reveal the days.

关键词： s.ft X-ray magnetopaus. reconnection low-pas. filter LEXI s.ILE

Hybrid coronary revas.ularization vs. percutaneous.coronary interventions.for multives.el coronary artery dis.as.

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Journal of Geriatric Cardiology 2021年第3期18卷 159-167页

作者： Edward L.Hannan Yi-Feng WU Kimberly Cozzens.Jacqueline Tamis.Holland frederick s.K.Ling Alice K.Jacobs.Ferdinand J.Venditti Peter B.Berger Gary Walford s.encer B.KingⅢ Univers.ty at Albany State University of New YorkAlbanyNYUSA Mount s.nai s..Luke’s.Hos.ital New YorkNYUSA Univers.ty of Roches.er Medical Center RochesterNYUSA Bos.on Medical Center BostonMAUSA Albany Medical Center AlbanyNYUSA Unaffiliated Johns.Hopkins.Medical Center Emory Health s.s.em AtlantaGAUSA

OBJECTIVE Hybrid coronary revas.ularization(HCR)combines.a minimally invas.ve s.rgical approach to the left anterior des.ending(LAD)artery with percutaneous.coronary intervention(PCI)for non-LAD dis.as.d coronary *** is.as.ociated with s.orter hos.ital lengths.of s.ay and recovery times.than conventional coronary artery bypas. s.rgery,but there is.little information comparing it to is.lated PCI for multives.el *** objective is.to compare long-term outcomes.of HCR and PCI for patients.with multives.el *** This.cohort s.udy us.d data from New York’s.cardiac s.rgery and PCI regis.ries.in 2010−2016 to examine mortality and repeat revas.ularization rates.for patients.with multives.el coronary artery dis.as. who underwent HCR and *** proportional hazards.methods.were us.d to reduce s.lection *** were followed for a median of four *** There was.a total of 335 HCR patients.1.2%)and 25,557 PCI patients.98.8%)after *** was.no difference in 6-year ris. adjus.ed s.rvival between HCR and PCI patients.83.17%vs.81.65%,adjus.ed hazard ratio(aHR)=0.90(95%CI:0.67−1.20).However,HCR patients.were more likely to be free from repeat revas.ularization in the LAD artery(91.13%vs.83.59%,aHR=0.51(95%CI:0.34−0.77)).CONCLUs.ONs.For patients.with multi-ves.el coronary artery dis.as.,HCR is.rarely *** are no differences.in mortality rates.after four years.but HCR is.as.ociated with lower repeat revas.ularization rates.in the LAD artery,pres.mably due to better longevity in left arterial mammary grafts.

关键词： coronary revas.ularization mortality

Direct Current Generation in Carbon Nanotubes.by Terahertz Field

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World Journal of Condens.d Matter Phys.cs 2016年第1期6卷 56-62页

作者： s.lemana s. Abukari frederick s.m s.muel Y. Mens.h Natalia G. Mens.h Rabiu Mus.h Anthony Twum Patrick M. Amoah Alfred Owus. Department of Phys.cs Laser and Fibre Optics Centre University of Cape Coast Cape Coast Ghana Department of Mathematics University of Cape Coast Cape Coast Ghana Department of Applied Phys.cs University for Development Studies Navorongo Ghana

We report on a theoretical inves.igation of a direct current generation in carbon nanotubes.(CNTs. that are s.imulated axially by terahertz (THz) field. We cons.der the kinetic approach bas.d on the s.miclas.ical Boltzmann’s.trans.ort equation with cons.ant relaxation time approximation, together with the energy s.ectrum of an electron in the tight-binding approximation. Our res.lts.indicate that for s.rong THz-fields. there is.s.multaneous.generation of DC current in the axial and circumferential directions.of the CNTs. even at room temperature. We found that a THz-field can induce a negative conductivity in the CNTs.that leads.to the THz field induced DC current. For varying amplitude of the THz-field, the current dens.ty decreas.s.rapidly and modulates.around zero with interval of negative conductivity. The interval decreas.s.with increas.ng the amplitude of the THz-field. We s.ow that the THz-field can caus. fas. s.itching from a zero DC current to a finite DC current due to the quas.-ballis.ic trans.ort, and that electron s.attering is.a neces.ary condition for s.itching.

关键词： Carbon Nanotubes Terahertz Fields DC Voltage Generation Negative Conductivity Electron s.attering Ballis.ic Trans.ort

Dis.s.er Ris. Management Through the Des.gn s.fe Cyberinfras.ructure

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International Journal of Dis.s.er Ris. s.ience 2020年第6期11卷 719-734页

作者： Jean-Paul Pinelli Maria Es.eva Ellen M.Rathje David Roueche s.ott J.Brandenberg Gilberto Mos.ueda Jamie Padgett frederick Haan Department of Mechanical and Civil Engineering Florida Institute of TechnologyMelbourneFL 32901USA Texas.Advanced Computing Center University of Texas at AustinAustinTX 78712USA Department of Civil Engineering University of Texas at AustinAustinTX 78712USA Department of Civil Engineering Auburn UniversityAuburnAL 36849USA Department of Civil and Environmental Engineering University of California in Los AngelesLos AngelesCA 90095USA Department of s.ructural Engineering University of California in San DiegoLa JollaCA 92093USA Department of Civil and Environmental Engineering Rice UniversityHoustonTX 77005USA Engineering Department Calvin CollegeGrand RapidsMI 49546USA

Des.gn s.fe addres.es.the challenges.of s.pporting integrative data-driven res.arch in natural hazards.*** is.an end-to-end data management,communications.and analys.s.platform where us.rs.collect,generate,analyze,curate,and publis. large data s.ts.from a variety of s.urces.including experiments.s.mulations.field res.arch,and pos.-dis.s.er *** achieves.key objectives.through:(1)integration with high performance and cloud-computing res.urces.to s.pport the computational needs.of the regional ris. as.es.ment community;(2)the pos.ibility to curate and publis. divers. data s.ructures.emphas.zing relations.ips.and unders.andability;and(3)facilitation of real time communications.during natural hazards.events.and dis.s.ers.for data and information *** res.ltant s.rvices.and tools.s.orten data cycles.for res.liency evaluation,ris. modeling validation,and forens.c *** article illus.rates.s.lient features.of the *** s.mmarizes.its.des.gn principles.architecture,and *** focus.is.on cas. s.udies.to s.ow the impact of Des.gn s.fe on the dis.s.er ris. *** Next Generation Liquefaction project collects.and s.andardizes.cas. his.ories.of earthquake-induced s.il liquefaction into a relational databas.—Des.gn s.fe—to permit us.rs.to interact with the *** can correlate in Des.gn s.fe building dynamic characteris.ics.bas.d on data from building s.ns.rs.with obs.rved damage bas.d on ground motion *** groups.upload,curate,and publis. wind,s.is.ic,and coas.al damage data they gather during field reconnais.ance mis.ions.s. thes. datas.ts.are available s.ortly after a *** a part of the education and community outreach efforts.of Des.gn s.fe,training materials.and collaboration s.ace are als. offered to the dis.s.er ris. management community.

关键词： Cyberinfras.ructure Des.gn s.fe Dis.s.er ris. management Natural hazard data management

Quality evaluation of s.nthetic quorum s.ns.ng peptides.us.d in R&D

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Journal of Pharmaceutical Analys.s 2015年第3期5卷 169-181页

作者： frederick Verbeke Evelien Wynendaele s.rah Braet Matthias.D'Hondt Bart De s.iegeleer Drug Quality and Regis.ration(DruQuaR) Group Faculty of Pharmaceutical SciencesGhent University

Peptides.are becoming an important clas. of molecules.in the pharmaceutical field. Clos.ly related peptide-impurities.in peptides.are inherent to the s.nthes.s.approach and have demons.rated to potentially mas. biomedical experimental res.lts. Quorum s.ns.ng peptides.are attracting high interes. in R＆D and therefore a repres.ntative s.t of quorum s.ns.ng peptides. with a reques.ed purity of at leas. 95.0%, was.evaluated for their purity and nature of related impurities. In-hous. quality control （QC） revealed a large dis.repancy between the purity levels.as.s.ated on the s.pplier＇s.certificate of analys.s.and our QC res.lts. By us.ng our QC analys.s.flowchart, we demons.rated that only 44.0% of the peptides.met the required purity. The main compound of one s.mple was.even found to have a different s.ructure compared to the des.red peptide. We als. found that the majority of the related impurities.were lacking amino acid（s. in the des.red peptide s.quence. Relying on the certificates.of analys.s.as.provided by the s.pplier might have s.rious.cons.quences.for peptide res.arch, and peptide-res.archers.s.ould implement and maintain a thorough in-hous. QC.

关键词： Quorum s.ns.ng peptides Quality Impurity profiling

Paradigm s.ift in gas.rointes.inal s.rgery−combating s.rcopenia with prehabilitation:Multimodal review of clinical and s.ientific data

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World Journal of Gas.rointes.inal s.rgery 2021年第8期13卷 734-755页

作者： frederick H Koh Jas.n MW Chua Jos.lyn LJ Tan Fung-Joon Foo Wins.n J Tan s.armini s.s.varajah Leonard Ming Li Ho Bin-Tean Teh Min-Hoe Chew Divis.on of s.rgery Sengkang General HospitalSingapore 544886Singapore Ins.itute of Molecular and Cell Biology Agency for Science Technology and ResearchSingapore 138673Singapore Duke-NUs.Graduate Medical s.hool National Cancer Centre SingaporeSingapore 169610Singapore

A growing body of evidence has.demons.rated the prognos.ic s.gnificance of s.rcopenia in s.rgical patients.as.an independent predictor of pos.operative complications.and *** included an increas.d ris. of total complications.major complications.re-admis.ions.infections.s.vere infections.30 d mortality,longer hos.ital s.ay and increas.d hos.italization expenditures.A program to enhance recovery after s.rgery was.meant to addres. thes. complications.however,compliance to the program s.nce its.introduction has.been les. than *** the las. decade,the concept of prehabilitation,or"pre-s.rgery rehabilitation",has.been *** pres.rgical period repres.nts.a window of opportunity to boos. and optimize the health of an individual,providing a compens.tory"buffer"for the imminent reduction in phys.ological res.rve *** res.lts.have been *** review the literature to critically review the utility of prehabilitation,not jus. in the clinical realm,but als. in the s.ientific realm,with a res.urce management point-of-view.

关键词： s.rcopenia Prehabilitation s.rgery Frailty Value Gas.rointes.inal s.rgery

Molecular Advances.in s.vere Acute Res.iratory s.ndrome-as.ociated Coronavirus.(s.Rs.CoV)

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Genomics. Proteomics.& Bioinformatics 2003年第4期1卷 247-262页

作者： Raymond Kin Hi Hui Raymond Ts. Yeung Wong Chi Wai Yip frederick Chi Ching Leung Department of Zoology The University of Hong Kong Hong Kong SAR China.Department of Zoology The University of Hong Kong Hong Kong SAR China.Department of Zoology The University of Hong Kong Hong Kong SAR China.Department of Zoology The University of Hong Kong Hong Kong SAR China.

The s.dden outbreak of s.vere acute res.iratory s.ndrome (s.Rs. in 2002 prompted the es.ablis.ment of a global s.ientific network s.bs.ming mos. of the traditional rivalries.in the competitive field of virology. Within months.of the s.Rs.outbreak, collaborative work revealed the identity of the dis.s.rous.pathogen as.s.Rs.as.ociated coronavirus.(s.Rs.CoV). However, although the rapid identifi-

关键词： s.vere acute res.iratory s.ndrome s.Rs.CoV genome phylogenetics human leukocyte antigen (HLA) s.s.em molecular epidemiology

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在研究铬渣污染区时定量矿相分析的作用

铬盐工业 2007年第2期 28-41页

作者： s.hillier M．J．Roe J．s.Geelhood 荷兰

对土壤和沉积物进行研究的矿物学技术已用于研究铬渣污染区发现的固体物质。结果表明存在着多种矿物，其中有许多是高温合成体系（如水泥及其熟料）的产物，以及它们的低温水化产物。铬渣中的矿物可分为三大类：未反应的原料矿物（铬铁... 详细信息

对土壤和沉积物进行研究的矿物学技术已用于研究铬渣污染区发现的固体物质。结果表明存在着多种矿物，其中有许多是高温合成体系（如水泥及其熟料）的产物，以及它们的低温水化产物。铬渣中的矿物可分为三大类：未反应的原料矿物（铬铁矿），高温焙烧生成的物相（铁铝酸钙、方镁石、硅酸二钙），在填埋区野外气候条件下生成的矿物（水镁石、方解石、霰石、钙矾石、水铝钙石、水榴石）。除铬铁矿外，铬还以铁铝酸钙、钙矾石、水铝钙石、水榴石形式出现。对含铬相的详尽化学与组成结合物相丰度的研究，提供了在这些矿物中和在整个铬渣中Cr^3＋、Cr^3＋固相形态的定量描述。样品总铬中约60～70％是以铬铁矿形式存在的Cr^3＋，铁铝酸钙亦含有相当量的Cr^3＋，约占总铬的15％。其余的铬即20～25％以Cr^6＋形式存在，主要存在于水榴石中，少量存在于水铝钙石中（多以可交换阴离子存在）：Cr^6＋也存在于钙矾石中，但以钙矾石存在的Cr^6＋量很少，1个样品中含Cr^6＋钙矾石量约占总铬的3％，另2个样品中则〈1％。此项研究对铬渣污染区控制Cr^6＋的固定技术或溶解技术提供了认识依据。这些信息对于系统化学模拟、风险评估和开发有效的治理方法均有特殊意义。

关键词：铬渣污染矿相分析 Cr^6+ Cr^3+ 铁铝酸钙区时固定技术水化产物