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14篇 您的检索式:作者名="Juli DING"
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1Invasion by alligator weed,Alternanthera philoxeroides,is associated with decreased species diversity across the latitudinal gradient in China显示文摘Aims Invasive species occurrence and their effects on biodiversity may vary along latitudes.We examined the occurrence(species cover)and relative dominance(importance value)of invasive alligator weed,Alternanthera philoxeroides,in its terrestrial habitat in China through a large-scale latitudinal field investigation.Methods We established 59 plots along the latitudinal transect from 21°N to 37°N.We recorded species name,abundance,height and individual species coverage of plants in every quadrat.We then measuredα-species diversity variations associated with the A.philoxeroides community across the latitudinal range.We also analyzed the effect of latitude on plant species’distributions in this community by using canonical correspondence analysis(CCA).Important Findings We found that species cover and importance value of A.philoxe-roides increased in areas<35°N,but decreased at higher latitudes.Lower latitudes supported greater species diversity than higher latitudes.Small-scale invasion of A.philoxeroides was associated with higher species diversity,but community diversity was lower when A.philoxeroides species cover exceeded 36%.Community plant species changed from mesophyte to hygrophyte gradually from low to high latitude.Our research suggests that latitude had significant influences on community diversity which interacted with the biotic resistance of a community and impact of invasion.Consequently,A.philoxeroides may become more invasive and have greater negative impacts on community species diversity in higher latitudes as global climate changes.Hao Wu Juli Carrillo Jianqing Ding 2016Journal of Plant Ecology2016,9,3:8
2The Crosstalk of mTOR/S6K1 and Hedgehog Pathways显示文摘Yan Wang Qingqing Ding Chia-Jui Yen Weiya Xia Julie G. Izzo Jing-Yu Lang Chia-Wei Li Jennifer L. Hsu Stephanie A. Miller Xuemei Wang Dung-Fang Lee Jung-Mao Hsu Longfei Huo Adam M. LaBaff Dongping Liu Tzu-Hsuan Huang Chien-Chen Lai Fuu-Jen Tsai Wei-Chao Ch 2012Cancer Cell2012,,3:2
3Asymmetric Distribution of Convection in Tropical Cyclones over the Western North Pacific Ocean显示文摘Forecasts of the intensity and quantitative precipitation of tropical cyclones(TCs) are generally inaccurate, because the strength and structure of a TC show a complicated spatiotemporal pattern and are affected by various factors. Among these, asymmetric convection plays an important role. This study investigates the asymmetric distribution of convection in TCs over the western North Pacific during the period 2005–2012, based on data obtained from the Feng Yun 2(FY2)geostationary satellite. The asymmetric distributions of the incidence, intensity and morphology of convections are analyzed.Results show that the PDFs of the convection occurrence curve to the azimuth are sinusoidal. The rear-left quadrant relative to TC motion shows the highest occurrence rate of convection, while the front-right quadrant has the lowest. In terms of intensity, weak convections are favored in the front-left of a TC at large distances, whereas strong convections are more likely to appear to the rear-right of a TC within a 300 km range. More than 70% of all MCSs examined here are elongated systems, and meso-β enlongated convective systems(MβECSs) are the most dominant type observed in the outer region of a TC. Smaller MCSs tend to be more concentrated near the center of a TC. While semi-circular MCSs [MβCCSs, MCCs(mesoscale convective complexes)] show a high incidence rate to the rear of a TC, elongated MCSs [MβECSs, PECSs(persistent elongated convective systems)] are more likely to appear in the rear-right quadrant of a TC within a range of 400 km.Lu YANG Jianfang FEI Xiaogang HUANG Xiaoping CHENG Xiangrong YANG Juli DING Wenli SHI 2016Advances in Atmospheric Sciences2016,33,11:2
4Maintenance and Sudden Change of a Strong Elevated Ducting Event Associated with High Pressure and Marine Low-Level Jet显示文摘Capture of a strong elevated ducting event,especially its maintenance and sudden change,is of great value to airborne radar to achieve its beyond-the-line-of-sight detection.However,the knowledge is not easily accessible over the open ocean and hence very rare.During the Air–Sea Interaction Survey(ASIS)over the western North Pacific(WNP)in May 2016,a strong elevated ducting event with a long-life period and sudden change in its evolution was observed.Measurements from the ASIS,images from the Himawari-8 satellite,reanalysis data from the ECMWF,and Weather Research and Forecasting(WRF)model,were used to analyze the maintenance and sudden change of this strong ducting event,together with the model performance on simulating it.The results showed that the maintenance of strong elevated ducts,with their tops ranging from 750 to 1050 m and average strength of approximately 38 M units,was caused by a strong dry air mass capping over the wet marine atmospheric boundary layer(MABL),together with the subsidence inversion associated with high pressure.The WRF model performs well in simulating them.However,a sudden increase in duct height with a slight decrease of strength was recorded by the subsequent GPS radiosonde,which was finally contributed to the mechanical turbulent inversion and hydrolapse associated with the marine low-level jet(MLLJ).The height of the maximum horizontal wind speed(Umh)of the MLLJ corresponds well with the bottom of the trapping layer.However,these jet-relevant ducts are generally weak and it is difficult to accurately simulate them by using the mesoscale numerical model,since the wind-shear produced eddies are too small to be properly parameterized.Zhichao LIANG Juli DING Jianfang FEI Xiaoping CHENG Xiaogang HUANG 2020Journal of Meteorological Research2020,34,6:2
5Direct/indirect effects of aerosols and their separate contributions to Typhoon Lupit(2009):Eyewall versus peripheral rainbands显示文摘As a typhoon approaches the continent,the position where anthropogenic aerosols penetrate,the convection competition between the eyewall and peripheral rainbands,and the separate contributions of direct aerosol-radiation interactions(ARI)and indirect aerosol-cloud interactions(ACI),yield uncertainties in the convection intensification area and hence the typhoon intensity.Typhoon Lupit(2009)was simulated using the Weather Research and Forecasting Model with Chemistry(WRF-Chem)to investigate and isolate the direct and indirect effects of aerosols on the intensity,convection,and precipitation of the typhoon.Three simulations(CTL,CLEAN,and CTLARIOFF)were designed,representing a polluted case(CTL,considering the ingestion of anthropogenic aerosols with ARI and ACI),a clean maritime case(CLEAN,mainly with sea salt aerosols),and a polluted case without aerosol radiative forcing(CTLARIOFF,as per CTL but without ARI).The results showed that anthropogenic aerosols could penetrate into both the peripheral rainbands and the eyewall when the typhoon was approaching the Asian continent.Owing to the representation of the real aerosol scenario,the simulated typhoon intensity weakened and was closer to observed values in the CTL experiment.The ARI dominated over ACI with the opposite effects.Specifically,the ACI mainly enhanced the formation of ice-phase hydrometeors within the upper level of the eyewall with more freezing latent heat releases,leading to an invigoration of eyewall convection.These excess ice-phase particles melted after they descended into the warm layer below the 0°C level,which accelerated the accretion of cloud droplets by raindrops(Pcacr)and hence the mixed phase precipitation process in the eyewall.The dynamic feedback induced by the ACI enhanced the boundary layer inflow and the upper layer outflow,supporting the maintenance of strong eyewall convection and intensification of the typhoon.Inversely,the ARI heated the distant periphery low-level atmosphere at an altitude of 1-2 km by the absorbing polluted aerosols.The heated air,driven by the radial inflow,firstly went through the periphery rainbands of the typhoon and invigorated convection there due to the low-level warming.Then,the enhanced periphery convection inhibited the further transport of warm moist air into the eyewall,resulting in weakening of the eyewall convection and hence typhoon intensity.In sum,for the polluted scenario,as the typhoon approached the continent,ARI played a dominant role over ACI.The WRF-Chem model with full consideration of aerosol-cloud-radiation interactions is advantageous in terms of reliably simulating typhoon intensity and precipitation distribution.Zhichao LIANG Juli DING Jianfang FEI Xiaoping CHENG Xiaogang HUANG 2021Science China Earth Sciences2021,64,12:1
6Odanacatib, a selective cathepsin K inhibitor to treat osteoporosis: safety, tolerability, pharmacokinetics and pharmacodynamics – results from single oral dose studies in healthy volunteers显示文摘S. Aubrey Stoch Stefan Zajic Julie A. Stone Deborah L. Miller Lucas Bortel Kenneth C. Lasseter Barnali Pramanik Caroline Cilissen Qi Liu Lida Liu Boyd B. Scott Deborah Panebianco Yu Ding Keith Gottesdiener John A. Wagner 2013Br J Clin Pharmacol2013,,5:1
7Tissue kallikrein is related to the severity of coronary artery disease显示文摘Yu-yu Yao Cong Fu Gen-shan Ma Yi Feng Cheng-xing Shen Guo-qiu Wu Xiao-guo Zhang Jian-dong Ding Cheng-chun Tang Zhong Chen Qi-ming Dai Jia-yi Tong Dan Luo Jian Zhu Hong Zhi Yong-jun Li Cheng-wei Ju Jing Lu Julie Chao Lee Chao 2013Clinica Chimica Acta2013,,:1
8Concordance of sustained virological response 4, 12, and 24 weeks post‐treatment with sofosbuvir‐containing regimens for hepatitis C virus显示文摘Eric M. Yoshida Mark S. Sulkowski Edward J. Gane Robert W. Herring Vlad Ratziu Xiao Ding Jing Wang Shu‐Min Chuang Julie Ma John McNally Luisa M. Stamm Diana M. Brainard William T. Symonds John G. McHutchison Kimberly L. Beavers Ira M. Jacobson K. Rajender 2015Hepatology2015,,1:1
9Loss of expression and altered localization of KAII and CD9 protein are associated with epithelial ovarian cancer progression 显示文摘Christopher D Ding XY Julie F 2002Gynecol Oneol2002,86,:1
10Statistical Characteristics and Mechanistic Analysis of Suddenly Reversed Tropical Cyclones over the Western North Pacific Ocean显示文摘Based on best track data of tropical cyclones(TCs) from the Japan Meteorological Agency, the characteristics of suddenly reversed TCs(SRTCs), which have turning angles usually approaching 180°, are statistically analyzed from 1949 to 2011 over the western North Pacific Ocean. The typical large-scale circulation patterns of SRTCs are investigated using reanalysis data and dynamical composite analysis. Results show that turnings mainly occur in low latitudes between 10°N and 20°N,and mainly west of 135°E. The majority of SRTCs reach their peak intensity at, or slightly before, the turning time and subsequently decrease at some variable rate. Specifically, SRTCs are divided into four types, each containing two groups(i.e.eight groups in total) in terms of the moving-direction changes. The moving speed of all SRTC types except the south–north type decreases to its lowest during the 24 h, corresponding to a significant reduction in the primary steering components.According to the analysis of the 13 typical flow patterns found in this study, we suggest that sudden track changes are caused by the reversal steering flow. The original balance of the background flow patterns are broken up by new systems, e.g. binary TCs or dispersion-induced anticyclones. Additionally, sudden track changes are often due to double ridge variations of the subtropical high or weakened/strengthened high pressure in the east and west, respectively.LUO Xia FEI Jianfang HUANG Xiaogang CHENG Xiaoping DING Juli HE Yiqiang 2015Advances in Atmospheric Sciences2015,32,4:1
11Loss of Expression and Altered Localization of KAI1 and CD9 Protein Are Associated with Epithelial Ovarian Cancer Progression显示文摘Christopher D. Houle Xiao-Yu Ding Julie F. Foley Cynthia A. Afshari J.Carl Barrett Barbara J. Davis 2002Gynecologic Oncology2002,,1:1
12Collagen scaffolds modified with CNTF and bFGF promote facial nerve regeneration in minipigs显示文摘Yi Cui Chao Lu Danqing Meng Zhifeng Xiao Xianglin Hou Wenyong Ding Depeng Kou Yao Yao Bing Chen Zhen Zhang Jiayin Li Juli Pan Jianwu Dai 2014Biomaterials2014,,:1
13Tallow tree allocates contrasting secondary chemicals in response to varying environments along elevational gradients显示文摘了解树木如何沿海拔梯度调节多种类型的次生代谢产物对于阐明植物如何采用生理和生态策略来应对各种生物及非生物环境变化至关重要。本研究旨在探索乌桕如何分配不同的次生代谢产物来响应海拔梯度上的环境变化。我们在中国沿海拔梯度对乌桕不同取食类型的植食性昆虫及其对乌桕叶片的危害率进行了野外实地调查,并对健康叶片和虫害叶片中的次生代谢产物(单宁和黄酮类)进行了测定分析。研究结果表明,乌桕叶片被危害(咀嚼或潜叶式危害)的可能性随海拔的升高而减小。遭受虫害叶片和未遭受虫害的健康叶片中黄酮类化合物的浓度随海拔梯度变化呈现相反的趋势,即随着海拔的升高,健康叶片和遭受虫害叶片受不同的生物和非生物因素驱动,健康叶片中黄酮类化合物浓度增加,而遭受虫害叶片中黄酮类化合物浓度下降,其中槲皮苷对黄酮类化合物随海拔梯度变化的贡献最大。单宁浓度随海拔梯度的变化未发生显著变化,高海拔地区乌桕健康叶片中单宁与黄酮类化合物的比例与低海拔相比相对较低。我们的研究揭示了沿海拔梯度昆虫植食性以及不同植物次生代谢产物的变化趋势,并强调了在理解植物的生理和生态策略中同时考虑多种次生代谢物质的重要性。Li Xiao Jialiang Zhang Wei Huang Juli Carrillo Evan Siemann Jianqing Ding 2020Journal of Plant Ecology2020,13,3:0
14Mature typhoon “cloud gyro” model and numerical simulation study显示文摘Due to the coarse temporal resolution of the best track databases for typhoons,some small-scale characteristics of typhoon motion have been neglected.In order to reveal the fine features of typhoon motion,the dense cloud within the radius of maximum wind(RMW)of mature typhoons,defined as a“cloud gyro”that simultaneously spins around its own rotational axis and precesses around the vertical axis,is approximated to a rigid body.Based on the principles of gyrodynamics,the derived mathematical model of a typhoon track indicates that typhoon movement is composed of translational motion governed by the steering flow and superimposed precessional motion that manifests as the inherent characteristics of typhoon tracks,especially with the external torque.High temporal resolution numerical simulation of a real case verifies the conclusion of this study,which is that the smaller the RMW,the larger the tangential wind speed or the larger the external torque,and the more obviously precessional motion manifests.Xiaogang HUANG Xiangcheng LI Xiaoping CHENG Chenxi ZHANG Juli DING 2020Science China Earth Sciences2020,63,5:0
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