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1Twenty-five years of change in scleractinian coral communities of Daya Bay (northern South China Sea) and its response to the 2008 AD extreme cold climate event显示文摘世界范围的珊瑚礁石逐渐地正在变得并且有害地影响在之上由包括的许多因素,重要气候变化,例如全球温暖和增加的 El Nino 南部的摆动活动。通常,珊瑚礁石的坚持,在特别低纬度,部分地,海运被管理不超过集体死亡能在发生的批评限制(∼30 ° C ) 的表面温度。因此,它被想珊瑚那生活在高纬度(即,当前更凉爽的海表面温度) 将多半比珊瑚生活在对假设未来温度增加更有利作出回应低纬度(即,当前更温暖的海表面温度) 。因而,高纬度的珊瑚社区可以有潜力在面临潜在的未来时为许多珊瑚种类充当 refugia 的区域全球温暖。Daya 海湾(22 ° 3 1 ′22 ° 5 0 ′N ) ,北华南海,包含几个高纬度的 non-reefal 珊瑚社区并且在这个区域以内代表 scleractinian 珊瑚的最在北方的分布之一。显著地, Daya 海湾经历了在整个过去的 50 年的在空和海表面温度中的戏剧的温暖。在这篇论文,我们在 Daya 海湾珊瑚社区分析 25 年变化,把两个基于历史性的调查并且我们的最近 2006 2008 地区性的生态的调查。我们的结果建议与预言相反,在过去的 25 年期间在在 Daya 海湾以内的珊瑚盖子有重要衰落(即,在到在 2008 的 15.3% 仅仅珊瑚盖子的 1983/1984 的 76.6% 珊瑚盖子) 。如此的变化也在最丰富的珊瑚种类反映重要移动,从 Acropora pruinosa 到 Favites abdita。大多数现代珊瑚社区变得以前在 15 和 30 年之间建立了,相应于增加的冬季海表面温度的一个时期。然而,很少的殖民地变得在最后 15 年以内建立了,尽管有温暖的一个更强烈的时期。由考虑另外的因素,我们假设那直接人为的影响,而非气候的事件,限制了发展,并且驾驶了衰落,最后 15 年里的 Daya 海湾珊瑚社区。Daya 海湾也在过去的 50 年期间受到了偶尔的极端冷事件,与最近的发生在 2008 年初(13 年 1 月 13 日 2 月) 。在 2008 冷事件期间,最低空气温度到达仅仅 6.6 ° C,和吝啬的海表面温度 2 月秋天,包括在 12.3 ° C 的六连续的天 < 14 ° C。显著地,海表面温度在通常在 scleractinian 珊瑚社区导致集体死亡的假设批评更低的温度阀值(∼13 ° C ) 下面掉落。令人惊讶地,我们的珊瑚社区调查,以前进行了两个(2007 年 8 月) 并且在以后(2008 年 2 月下旬) 极端 2008 冷事件,证明 Daya 海湾珊瑚生态系统恰好被影响在之上在冷时期期间。那些观察建议 Daya 海湾 scleractinian 珊瑚社区开发了改编到低海表面温度。总的来说,我们的数据支持高纬度的珊瑚社区例如 Daya 海湾,有的假设在潜在的未来的来临为 scleractinian 珊瑚充当 refugia 的区域的潜力全球温暖。CHEN TianRan YU KeFu SHI Qi LI Shu Gilbert J. Price WANG Rong ZHAO MeiXia CHEN TeGu ZHAO JianXin 2009Chinese Science Bulletin2009,54,12:22
2Nature:死亡的肿瘤细胞释放出胞内钾离子来阻断免疫系统显示文摘在一项新的研究中。来自美国国家癌症研究所和英国巴布拉汉研究所的研究人员发现当肿瘤组织死亡时从它当中泄露出来的一种无机离子起着阻止抗肿瘤免疫细胞发挥功能的作用。这一发现为开发调动免疫系统抵抗癌症的疗法提供一种新的方法。相关研究结果在线发表在Nature期刊上。Robert Eil, Suman K. Vodnala, David Clever, Christopher A. Klebanoff, Madhusudhanan Sukumar, Jenny H. Pan, Douglas C. Palmer, Alena Gros, Tori N. Yamamoto, Shashank J. Patel, Geoffrey C. Guittard, Zhiya Yu, David S. Schrump, W. Marston Linehan, Nicholas P. Restifo Christopher A. Klebanoff Valentina Carbonaro, Klaus Okkenhaug, Rahul Roychoudhuri 2016现代生物医学进展2016,16,31:12
3EFFECTS OF HIGH-DENSITY CURRENT PULSES ON WORK HARDENING BEHAVIORS OF AUSTENITE STAINLESS STEEL IN WIRE-DRAWING DEFORMATION显示文摘The influence of high-density pulsing current on the work-hardening behavior of H0Cr17Ni6Mn3 and 1Cr18N19 stainless steels in wire-drawing deformation processes has been studied. It was found that the drawing stress and the work-hardening rate of wires were significantly reduced by applying current pulses in drawing process. The work-hardening behavior of the multi-courses drawing deformation can be well de scribed by Hollomon formula σ = κεn. With the application of current pulses in drawing deformation, the work-hardening exponents of H0Cr17Ni6MnS steel wires and 1 Cr1 8Ni9 stainless steel wires were reduced by 33% and 45%, respectively, and their work-hardening coefficients were reduced by 41% and 47%, respectively. It was also found that the work-hardening coefficient of wires was reduced with the increment of the frequency of current pulses, while the work-hardening exponents of both steels were insensitive to the pulsing frequency.K.F. Yao, P. Yu, J. Wang, W. Fang and M.X. Zheng Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China 2001Acta Metallurgica Sinica(English Letters)2001,14,5:7
4Air quality during the 2008 Beijing Olympic Games显示文摘David G. Streets Joshua S. Fu Carey J. Jang Jiming Hao Kebin He Xiaoyan Tang Yuanhang Zhang Zifa Wang Zuopan Li Qiang Zhang Litao Wang Binyu Wang Carolyne Yu 2006Atmospheric Environment2006,,3:6
5借助连续的GPS TEC测量记录到的地震前电离层异常显示文摘本文旨在通过全球定位系统(GPS)地面接收器得到的总电子含量(TEC)来研究地震发生前的电离层异常.利用连续15天的TEC中值和相关的四分位距(IQR)作为参考来识别1999年9月到2002年12月之间台湾地区20个M≥6.0的地震发生前的异常信号。结果表明在其中的16个地震发生的前5天18:00-22:00LT(LT=UT+8h)之间出现了电离层异常。80%的成功率表明用GPS TEC记录大地震前的电离层异常是有效的。J. Y. Liu Y. J. Chuo S. J. Shan Y. B. Tsai Y. I. Chen S. A. Pulinets S. B. Yu 马洁美 2005国际地震动态2005,,11:5
6肝脏恶性肿瘤经导管动脉化疗性栓塞术后-过性肝脏密度差异(THAD)系列CT检查的变化显示文摘本研究的目的是研究经导管动脉化疗栓塞术(TACE)引起的一过性肝脏密度差异(THAD)的自然病程变化。对32个月内32例经导管动脉化疗栓塞术治疗后的肝细胞癌病人在系列CT检查中发现的40处THAD进行了回顾性分析。THAD定义为肝脏cT动态扫描(横断位,层厚1.9-8.8cm,平均4.9cm)肝动脉期在碘油堆积灶旁出现的局灶性、一过性、周围肝实质的强化。40处由TACE引发的THAD中,18处(45%)伴有动脉-门静脉瘘(APF),9处(23%)伴有门静脉狭窄(PVS),此外,S.H. Hwang J.S. Yu J. Chung J.J. Chung J.H .Kim K.W. Kim 叶锦棠(译) 唐光健(校) 2008国际医学放射学杂志2008,31,5:4
7Genesis of the Bianjiadayuan Pb-Zn polymetallic deposit, Inner Mongolia, China:Constraints from in-situ sulfur isotope and trace element geochemistry of pyrite显示文摘The Southern Great Xing’an Range (SGXR) which forms part of the eastern segment of the Central Asian Orogenic Belt (CAOB) is known as one of the most important Cu-Mo-Pb-Zn-Ag-Au metallogenic belts in China,hosting a number of porphyry Mo (Cu),skarn Fe (Sn),epithermal Au-Ag,and hydrothermal veintype Ag-Pb-Zn ore deposits.Here we investigate the Bianjiadayuan hydrothermal vein-type Ag-Pb-Zn ore deposit in the southern part of the SGXR.Porphyry Sn ±Cu ± Mo mineralization is also developed to the west of the Ag-Pb-Zn veins in the ore field.We identify a five-stage mineralization process based on field and petrologic studies including (i) the early porphyry mineralization stage,(ii) main porphyry mineralization stage,(iii) transition mineralization stage,(iv) vein-type mineralization stage and (v) late mineralization stage.Pyrite is the predominant sulfide mineral in all stages except in the late mineralization stage,and we identify corresponding four types of pyrites: Py1 is medium-grained subhedral to euhedral occurring in the early barren quartz vein;Py2 is medium- to fine-grained euhedral pyrite mainly coexisting with molybdenite,chalcopyrite,minor sphalerite and galena;Py3 is fine-grained,subhedral to irregular pyrite and displays cataclastic textures with micro-fractures;Py4 occurs as euhedral microcrystals and forms irregularly shaped aggregate with sphalerite and galena.LA-ICP-MS trace element analyses of pyrite show that Cu,Pb,Zn,Ag,Sn,Cd and Sb are partitioned into pyrite as structurally bound metals or mineral micro/nano-inclusions,whereas Co,Ni,As and Se enter the lattice via isomorphism in all types of pyrite.The Cu,Zn,Ag,Cd concentrations gradually increase from Py1 to Py4,which we correlate with cooling and mixing of ore-forming fluid with meteoric water.Py2 contains the highest contents of Co,Ni,Se,Te and Bi,suggesting high temperature conditions for the porphyry mineralization stage.Ratios of Co/Ni (0.03-10.79,average 2.13) and sulphur isotope composition of sulfide indicate typical hydrothermal origin for pyrites.The δ^34SCDT values of Py1 (0.42‰-1.61‰,average 1.16‰),Py2 (-1.23‰ to 0.82‰,average 0.35‰),Py3 (-0.36‰ to 2.47‰,average 0.97‰),Py4 (2.51‰-3.72‰,average 3.06‰),and other sulfides are consistent with those of typical porphyry deposit (-5‰ to 5‰),indicating that the Pb-Zn polymetallic mineralization in the Bianjiadayuan deposit is genetically linked to the Yanshanian (JurassiceCretaceous) magmatic-hydrothermal events.Variations of d34S values are ascribed to the changes in physical and chemical conditions during the evolution and migration of the ore-forming fluid.We propose that the high Sn content of pyrite in the Bianjiadayuan hydrothermal vein-type PbeZn polymetallic deposit can be used as a possible pathfinder to prospect for Sn mineralization in the surrounding area or deeper level of the ore field in this region.Kai-Rui Song Li Tang Shou-Ting Zhang M. Santosh Christopher J. Spencer Yu Zhao Hao-Xing Li Liang Wang An-Li Zhang Yin-Qiang Sun 2019Geoscience Frontiers2019,10,5:4
8An equivalence canonical form of a matrix triplet over an arbitrary division ring with applications显示文摘We in this paper give a decomposition concerning the general matrix triplet over an arbitrary divisionring F with the same row or column numbers. We also design a practical algorithm for the decomposition of thematrix triplet. As applications, we present necessary and suficient conditions for the existence of the generalsolutions to the system of matrix equations DXA = C1, EXB = C2, F XC = C3 and the matrix equation AXD + BY E + CZF = Gover F. We give the expressions of the general solutions to the system and the matrix equation when thesolvability conditions are satisfied. Moreover, we present numerical examples to illustrate the results of thispaper. We also mention the other applications of the equivalence canonical form, for instance, for the compressionof color images.WANG QingWen van der WOUDE J. W. YU ShaoWen 2011Science China Mathematics2011,54,5:4
9Application of the Nutrient Cycling Model NuCM to a Forest Monitoring Site Exposed to Acidic Precipitation in China显示文摘The nutrient cycling model NuCM is one of the most detailed models for simulating processes that influence nutrient cycling in forest ecosystems. A field study was conducted at Tieshanping, a Masson pine (Pinus massoniana Lamb.) forest site, in Chongqing, China, to monitor the impacts of acidic precipitation on nutrient cycling. NuCM simulations were compared with observed data from the study site. The model produced an approximate fit with the observed data. It simulated the mean annual soil solution concentrations in the two simulation years, whereas it sometimes failed to reproduce seasonal variation. Even though some of the parameters required by model running were measured in the field, some others were still highly uncertain and the uncertainties were analyzed. Some of the uncertain parameters necessary for model running should be measured and calibrated to produce a better fit between modeled results and field data.ZHU Jian-Hua YU Peng-Tao T. A. SOGN WANG Yan-Hui J. MULDER 2008Pedosphere2008,18,6:4
10STUDY ON DIFFUSION WELDING OF ALUMINIUN MATRIX COMPOSITE显示文摘Effects of diffusion welding parameters on strength of welded joint based on particle reinforced alumini- um matrix composite Al2O3p/6061Al were studied by comparing with aluminium matrix alloy,Mecha- nism for the loss of joint strength was analyzed.It was pointed out that the key processing parameters affecting the strength of joint was the welding temperature.The high quality joint can be successfully obtained with appropriate diffusion welding parameters.J. T. Niu L. M. Liu J. P. Zhai J. Yu X. M. Zhang (National Key Laboratory of Advanced Welding Production Technology, HIT, Harbin 750001, China) 2000Acta Metallurgica Sinica(English Letters)2000,13,1:4
11Synergistic Effects of A1896, T1653 and T1762/A1764 Mutations in Genotype C2 Hepatitis B Virus on Development of Hepatocellular Carcinoma显示文摘H. Lyu D. Lee Y.‐H. Chung J. A. Kim J.‐H. Lee Y.‐J. Jin W. Park P. Mathews E. Jaffee L. Zheng E. Yu Y. J. Lee 2012J Viral Hepat2012,,3:3
12Modeling evapotranspiration and energy balance in a wheat–maize cropping system using the revised RZ-SHAW model显示文摘Q.X. Fang L. Ma G.N. Flerchinger Z. Qi L.R. Ahuja H.T. Xing J. Li Q. Yu 2014Agricultural and Forest Meteorology2014,,:3
13Association of Psb28 and Psb27 Proteins with PSII-PSI Supercomplexes upon Exposure of Synechocystis sp. PCC 6803 to High Light显示文摘Martina Beckova Zdenko Gardian Jianfeng Yu Peter Konik Peter J. Nixon Josef Komenda 2017Molecular Plant2017,10,1:3
14Epididymis-specific lipocalin promoters显示文摘我们的目标是译解序列它 DNA 为附睾基因的 tissue-specificexpression 被要求。至少 6 epididymis 特定的 lipocalin 基因被知道。这些不同地在附睾被调整并且区域化。Lipocalin 5 (Lcn5 或 mE-RABP ) andLipocalin (Lcn8 或 mEP17 ) 8 是属于 epididymis 特定的 lipocalin 基因簇的相应基因。两个都, Lcn5 基因和 5.3 kb 倡导者的 5 kb 倡导者碎片直接 theLcn8 基因罐头碎裂在附睾(到远侧的头的 Lcn5 和到起始的片断的 Lcn8 ) 的 transgene 表示,显示这些倡导者碎片为 epididymis 特定的基因表示包含重要 cis-regulatoryelement。为了定义,推进调整基因表示的碎片, Lcn5 倡导者在转基因的鼠标被检查并且使附睾房间线不朽。在连续删除以后, Lcn5 基因的 1.8 kb 倡导者碎片是在转基因的老鼠的足够的 fortissue 特定、区域特定的基因表示。短暂 transfectionanalysis 表明抄写因素叉头框 A2 ( Foxa2 )与雄激素受体交往并且绑在 Lcn5 倡导者 activity.Immunohistochemistry 感应的雄激素依赖者显示了的 kb 和 1.3 kb 和 thatFoxa2 表示禁止的在 1.2 之间的 Lcn5 倡导者的 100 bp 碎片在附睾的 Foxa2 的一个限制表达式在哪儿 endogenousLcn5 基因表示被压制并且 Lcn5 倡导者的 Foxa2 抑制与在语料库和尾的 Lcn5 的表示的缺乏一致。我们的途径为附睾 lipocalin 基因规定的进一步的分析和 epididymalfunction 的灵活控制提供基本策略。Kichiya Suzuki Xiuping Yu Pierre Chaurand Yoshihiko Araki Jean-Jacques Lareyre Richard M. Caprioli Marie-Claire Orgebin-Crist Robert J. Matusik 2007Asian Journal of Andrology2007,9,4:3
15The Pan-ErbB Negative Regulator Lrig1 Is an Intestinal Stem Cell Marker that Functions as a Tumor Suppressor显示文摘Anne E. Powell Yang Wang Yina Li Emily J. Poulin Anna L. Means Mary K. Washington James N. Higginbotham Alwin Juchheim Nripesh Prasad Shawn E. Levy Yan Guo Yu Shyr Bruce J. Aronow Kevin M. Haigis Jeffrey L. Franklin Robert J. Coffey 2012Cell2012,,1:2
16Molecular tagging of a major QTL for fiber strength in Upland cotton and its marker-assisted selection显示文摘Tianzhen Zhang Youlu Yuan John Yu Wangzhen Guo Russell J. Kohel 2003Theoretical and Applied Genetics2003,,2:2
17Molybdenite Re–Os and albite 40 Ar/ 39 Ar dating of Cu–Au–Mo and magnetite porphyry systems in the Yangtze River valley and metallogenic implications显示文摘Jingwen Mao Yitian Wang Bernd Lehmann Jinjie Yu Andao Du Yanxiong Mei Yongfeng Li Wenshuan Zang Holly J. Stein Taofa Zhou 2005Ore Geology Reviews2005,,3:2
18MicroRNA 133B targets pro-survival molecules MCL-1 and BCL2L2 in lung cancer显示文摘Melissa Crawford Kara Batte Lianbo Yu Xin Wu Gerard J. Nuovo Clay B. Marsh Gregory A. Otterson Serge P. Nana-Sinkam 2009Biochemical and Biophysical Research Communications2009,,3:2
19Metabolic manifestations of insulin deficiency do not occur without glucagon action显示文摘Young Lee Eric D. Berglund May-yun Wang Xiaorong Fu Xinxin Yu Maureen J. Charron Shawn C. Burgess Roger H. Unger 2012Proceedings of the National Academy of Sciences2012,,37:2
20AMPK Phosphorylates and Inhibits SREBP Activity to Attenuate Hepatic Steatosis and Atherosclerosis in Diet-Induced Insulin-Resistant Mice显示文摘Yu Li Shanqin Xu Maria M. Mihaylova Bin Zheng Xiuyun Hou Bingbing Jiang Ogyi Park Zhijun Luo Etienne Lefai John Y.-J. Shyy Bin Gao Michel Wierzbicki Tony J. Verbeuren Reuben J. Shaw Richard A. Cohen Mengwei Zang 2011Cell Metabolism2011,,4:2
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