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35篇 您的检索式:作者名="J.Paul"
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1中国地区工资水平差异的影响因素分析显示文摘本文运用模块数据和空间计量学的方法考察了中国改革开放以来影响地区工资水平及地区工资非均衡的各种政策体制因素和经济因素。实证结果表明,中国的地区工资水平及其差异既受制度变迁的影响又受市场机制的作用,具有典型的转型特征。具体而言,工资体制、对外开放、所有制改革、地方保护、教育水平和资本投入等因素对地区工资水平及其差异都有不同程度的影响作用。张建红 J.Paul Elhorst Arjen van Witteloostuijn 2006经济研究2006,41,10:75
2苏北废黄河水下三角洲沉积范围研究述评显示文摘详细梳理现有研究成果,目前对1128-1855年废黄河水下三角洲沉积范围的划分可总结为三类主要观点:1外缘位于废黄河口外近岸、远岸斜坡带之间的宽缓平台(水深范围:-15^-25 m)之上;2外缘位于废黄河口外远岸斜坡带(水深范围:-25^-45 m)之外;3外缘可达-45m等深线之外,且废黄河三角洲由一个近岸/远岸复合楔形沉积体构成。综合分析废黄河水下三角洲海域海底地形地貌、浅部地层沉积特征与14C年代、浅层声学地层等资料数据表明,1128-1855年废黄河水下三角洲的延伸范围应该超过现今-20 m等深线,但未越过远岸斜坡带;远岸斜坡带发育的厚层楔形体不大可能是废黄河三角洲前缘沉积层,其确切成因、物源与年代等问题尚有待于进一步深入研究。为准确圈定1128-1855年废黄河水下三角洲沉积范围,需要对完整覆盖本区的高质量浅层地震剖面进行解译分析,在其三大地形单元(近岸、远岸斜坡带及其之间宽缓平台)内补充钻孔分析,并参考1875年以来各期海图资料来进行综合判定。夏非 张永战 王瑞发 J.Paul LIU 张振克 彭修强 2015地理学报2015,70,1:8
3Determination of repaglinide in human plasma by high-performance liquid chromatography–tandem mass spectrometry显示文摘A rapid and sensitive method based on high-performance liquid chromatography–tandem mass spectrometry(LC–MS/MS)has been developed for the determination of repaglinide in human plasma.The analyte and internal standard(I.S.),diazepam,were extracted from plasma(25 mL)by liquid–liquid extraction with diethyl ether–dichloromethane(60:40,v/v)and separated on a XDB-C_(18) column using acetonitrile–ammonium acetate buffer(pH 6.8,0.01 mol/L)as mobile phase.The retention times of repaglinide and I.S.were 1.95 and 2.35 min,respectively.Detection was carried out using API 4000 mass spectrometer with an ESI interface operating in the multiple reaction monitoring(MRM)mode.The assay was linear over the concentration range 0.050–50 ng/mL with a limit of detection(LOD)of 0.010 ng/mL.Intra-and inter-day precisions(as relative standard deviation,R.S.D.)were ≤5.07%and ≤11.2%,respectively,and accuracy(as relative error,R.E.)was from-0.593%to -1.26%.The assay was successfully applied to a pharmacokinetic study involving a single oral administration of a tablet containing 2 mg repaglinide to each of 10 healthy volunteers.Jie Zhang Feng Gao Xin Guan Yan-tong Sun Jing-kai Gu J.Paul Fawcett 2011Acta Pharmaceutica Sinica B2011,1,1:7
4Identification of Quantitative Trait Loci Affecting Hemicellulose Characteristics Based on Cell Wall Composition in a Wild and Cultivated Rice Species显示文摘房间墙 hemicellulosic 多糖是复杂、多样的在结构上。房间墙 hemicelluloses 和他们的生物角色的合成的知识是有限的。印射的量的特点 loci (QTL ) 是为为基因鉴定的复杂显型的解剖的一个有用工具。在这研究,我们在在普通野米饭, Yuanj,和与他们的基因渗入印射的栽培变种, Teqing,和执行 QTL 衬里的精英 indica (IL ) 之间的房间墙 monosaccharide 层次利用了自然变化。在 Yuanj 和 Teqing 的灰煤杆上进行的化学分析证明主要改变在葡萄糖和木糖层次被发现,它与特定的 hemicellulosic 聚合物被相关。Glycosidic 连接检查表明在 Yuanj,葡萄糖内容的增加源于混合连接 -glucan (MLG ) 的高水平,而在木糖内容的减小反映木聚糖脊梁和改变的 arabinoxylan (斧子) 结构的底层。为 monosaccharides 的十七 QTL 通过 95 核心 IL 的灰煤杆残余的作文分析被识别了。影响木糖和葡萄糖层次的四主要 QTL 分别地为 19 phenotypic 变化和 21% 负责。这研究为米饭房间墙形成的基因解剖提供一个唯一的资源并且在植物的机关改变。Si-Ju Zhang Xue-Qin Song Bai-Sheng YU Bao-Cai Zhang Chuan-Qing Sun J.Paul Knox Yi-Hua Zhou 2012Molecular Plant2012,5,1:6
5Separation and simultaneous quantitation of PGF2α and its epimer 8-iso-PGF2α using modifier-assisted differential mobility spectrometry tandem mass spectrometry显示文摘Because many therapeutic agents are contaminated by epimeric impurities or form epimers as a result of metabolism, analytical tools capable of determining epimers are increasingly in demand. This article is a proof-of-principle report of a novel DMS–MS/MS method to separate and simultaneously quantify epimers, taking PGF2α and its 8-epimer, 8-iso-PGF2α, as an example. Good accuracy and precision were achieved in the range of 10–500 ng/m L with a run time of only 1.5 min. Isopropanol as organic modifier facilitated a good combination of sensitivity and separation. The method is the first example of the quantitation of epimers without chromatographic separation.Chunsu Liang Hui Sun Xiangjun Meng Lei Yina J.Paul Fawcett Huaidong Yu Ting Liu Jingkai Gu 2018Acta Pharmaceutica Sinica B2018,8,2:3
6Quantitation of bivalirudin,a novel anticoagulant peptide,in human plasma by LC-MS/MS:Method development,validation and application to pharmacokinetics显示文摘A rapid and sensitive method based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the determination of a novel anticoagulant peptide bivalirudin in human plasma has been developed and validated. Plasma samples were precipitated protein with acetonitrile and re-extracted with dichloromethane, after which the analyte and triptorelin as an internal standard (IS) were separated on a 300SB-C18 column (150 mm 4.6 mm i.d., 5 mm particle size) using 0.1% formic acid:methanol (45:55, v/v) as mobile phase. The triple-quadrupole mass spectrometer, equipped with electrospray ionization (ESI) interface, was operated in the positive ion mode, and the multiple-reaction monitoring (MRM) transitions of bivalirudin and IS were at m/z 1091.0-650.4 and m/z656.5-249.3, respectively. The lower limit of quantification (LLOQ) was 1 ng/mL for 100 mL plasma sample and the assay was linear over the concentration range 1-1000 ng/mL. The accuracy was within a range from 0.4% to 0.5% in terms of relative error (RE) and the intra- and inter-day precisions in terms of relative standard deviation (RSD) were r2.92 and r3.36, respectively. The method was successfully applied to a pharmacokinetic study involving intravenous administration of bivalirudin (0.5 mg/kg) to Chinese volunteers.Xiao-Jiao Li Yan-Tong Sun Lei Yin Xue-Ju Zhang Yan Yang J.Paul Fawcett Yi-Min Cui Jing-Kai Gu 2013Journal of Pharmaceutical Analysis2013,3,1:2
7Co_(3)Mo_(3)N—An efficient multifunctional electrocatalyst显示文摘Efficient catalysts are required for both oxidative and reductive reactions of hydrogen and oxygen in sustainable energy conversion devices.However,current precious metal-based electrocatalysts do not perform well across the full range of reactions and reported multifunctional catalysts are all complex hybrids.Here,we show that singlephase porous Co3Mo3N prepared via a facile method is an efficient and reliable electrocatalyst for three essential energy conversion reactions;oxygen evolution reaction(OER),oxygen reduction reaction(ORR),and hydrogen evolution reaction(HER)in alkaline solutions.Co3-Mo3N presents outstanding OER,ORR,and HER activity with high durability,comparable with the commercial catalysts RuO2 for OER and Pt/C for ORR and HER.In practical demonstrations,Co3Mo3N gives high specific capacity(850 mA h gZn^(-1) at 10 mA cm^(-2))as the cathode in a zinc-air battery,and a low potential(1.63 V at 10 mA cm^(-2))used in a water-splitting electrolyzer.Availability of Co and Mo d-states appear to result in high ORR and HER performance,while the OER properties result from a cobalt oxide-rich activation surface layer.Our findings will inspire further development of bimetallic nitrides as cost-effective and versatile multifunctional catalysts that will enable scalable usage of electrochemical energy devices.Yao Yuan Samira Adimi Tiju Thomas Jiacheng Wang Haichuan Guo Jian Chen J.Paul Attfield Francis J.DiSalvo Minghui Yang 2021The Innovation2021,2,2:2
8Fitting the jigsaw of citation: Information visualization in domain analysis显示文摘ChaomeiChen Ray J.Paul BobO’Keefe 2001J Am Soc Inf Sci2001,,4:1
9'Demographic transition and economic growth in China,India and Pakistan'显示文摘Misbah T.Choudhry J.Paul Elhorst 0,,34:1
10Plasmonic mid-infrared third harmonic generation in germanium nanoantennas显示文摘We demonstrate third harmonic generation in plasmonic antennas consisting of highly doped germanium grown on silicon substrates and designed to be resonant in the mid-infrared frequency range that is inaccessible with conventional nonlinear plasmonic materials.Owing to the near-field enhancement,the result is an ultrafast,subdiffraction,coherent light source with a wavelength tunable between 3 and 5μm,and ideally overlapping with the fingerprint region of molecular vibrations.To observe the nonlinearity in this challenging spectral window,a highpower femtosecond laser system equipped with parametric frequency conversion in combination with an all-reflective confocal microscope setup is employed.We demonstrate spatially resolved maps of the linear scattering cross section and the nonlinear emission of single isolated antenna structures.A clear third-order power dependence as well as mid-infrared emission spectra prove the nonlinear nature of the light emission.Simulations support the observed resonance length of the double-rod antenna and demonstrate that the field enhancement inside the antenna material is responsible for the nonlinear frequency mixing.Marco P.Fischer Aaron Riede Kevin Gallacher Jacopo Frigerio Giovanni Pellegrini Michele Ortolani Douglas J.Paul Giovanni Isella Alfred Leitenstorfer Paolo Biagioni Daniele Brida 2018Light(Science & Applications)2018,7,1:1
11Instrumental variables technique: cigarette price provided better estimate of effects of smoking on SF-12显示文摘J.Paul Leigh Michael Schembri 2004Journal of Clinical Epidemiology2004,,3:1
12Schooling and frailty among seniors显示文摘J.Paul Leigh Rachna Dhir 1997Economics of Education Review1997,,:1
13Decades of invention and discovery显示文摘Robinson J.Paul Wallace H.Coulter 0,,:1
14Mack Fulwyler in his own words显示文摘Robinson J.Paul 0,,:1
15The Shandong mud wedge and post-glacial sediment accumulation in the Yellow Sea显示文摘Liu J.Paul Milliman J Gao Shu 0,,04:1
16Holocene development of the Yellow River' s subaqueous delta,North Yellow Sea显示文摘Liu J.Paul Milliman J Gao Shu Cheng Peng 0,,1:1
17Holocene development of the Yellow River’s subaqueous delta, North Yellow Sea显示文摘J.Paul Liu John D. Milliman Shu Gao Peng Cheng 2004Marine Geology2004,,1:1
18A unique Yellow River-derived distal subaqueous delta in the Yellow Sea显示文摘Yang Zuosheng Liu J.Paul 0,,1:1
19Holocene development of the Yellow River’s subaqueous delta, North Yellow Sea显示文摘J.Paul Liu John D. Milliman Shu Gao Peng Cheng 2004Marine Geology2004,,1:1
20实用蛋内注射技术问世显示文摘利用蛋内注射系统,可对孵化后期的胚胎进行免疫注射和注射多种其他物质以提高生产率和防制疾病,每小时可注射2~3万个蛋……宋润山 J.Paul Thaxton 1990国外畜牧学(猪与禽)1990,,1:1
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