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| 1 | The Tea Tree Genome Provides Insights into Tea Flavor and Independent Evolution of Caffeine Biosynthesis显示文摘茶是世界有巨大的经济、药用、文化的重要性的最旧、很流行的包含咖啡因的饮料。这里,我们在场第一个高质量的核苷酸序列充满重复(80.9%) ,栽培的茶树山茶 sinensis 的 3.02-Gb 染色体。我们证明茶树的一种非常地大的染色体尺寸从一些 LTR retrotransposon 家庭的慢、稳定、长期的扩大被结果。除了一个最近的整个染色体的复制事件,基因的系特定的扩大把新陈代谢的生合成与 flavonoid 联系了被发现,它提高 catechin 生产,萜烯酶激活,和应力公差,为茶风味和改编的重要特征。我们相对可可子和咖啡表明一个独立人士和茶咖啡因合成小径的快速的进化。在 25 山茶种类之中的比较研究表明那更高的表情大多数 flavonoid- 和咖啡因铺平 -- 然而并非 theanine 相关的基因贡献 catechins 和咖啡因的增加的生产并且因此提高处理茶的适用性和茶质量。这些新奇调查结果为进一步的 metabolomic 和典型生合成小径的功能的 genomic 精炼铺平道路并且将帮助开发将最后满足并且吸引世界范围的更多的茶喝酒者的茶风味的一个更多样化的集合。 | En-Hua Xia Hai-Bin Zhang Jun Sheng Kui Li Qun-Jie Zhang Changhoon Kim Yun Zhang Yuan Liu Ting Zhu Wei Li Hui Huang Yan Tong Hong Nan Cong Shi Chao Shi Jian-Jun Jiang Shu-Yan Mao Jun-Ying Jiao Dan Zhang Yuan Zhao You-Jie Zhao Li-Ping Zhang Yun-Long Liu Ben-Ying Liu Yue Yu Sheng-Fu Shao De-Jiang Ni Evan E. Eichler Li-Zhi Gao | 2017 | Molecular Plant2017,10,6: | 113 |
| 2 | Efficient and Specific Modifications of the Drosophila Genome by Means of an Easy TALEN Strategy显示文摘技术开发总是是在生物医学的研究驾驶突破的力量之一。自从托马斯·摩根的时间起,一步一步地, Drosophilists 为操作并且机能上地把开发了强大的基因工具为改进这些技术并且开发新技术的果蝇染色体,而是房间仍然大,今天特别作为生物学家开始系统地学习不同模型有机体的功能的 genomics ,包括人,以一种高产量的方式。这里,我们报导,第一次在果蝇,为借助于改进抄写在很高的效率修改果蝇染色体的一个快速、容易、高度特定的方法像使活跃之物的受动器核酸酶(TALEN ) 策略。我们利用了最近发达的单位集会策略装配设计修改黄基因的二特定的 TALEN (在性染色体上) 并且新奇正染色体的基因。TALEN 的 mRNAs 随后被注入果蝇胚胎。从 31.2% 注射 F0 肥沃的苍蝇,我们检测了包含黄基因的可继承的修正。从到可继承的修正的察觉的特定的 TALEN 的建设的全部过程能在一个月以内被完成。在果蝇的这个调停 TALEN 的染色体修正方法的潜在的应用程序被讨论。 | Jiyong Liu Changqing Li Zhongsheng Yu Peng Huang Honggang Wu Chuanxian Wei Nannan Zhu Yan Shen Yixu Chen Bo Zhang Wu-Min Deng Renjie Jiao | 2012 | Journal of Genetics and Genomics2012,39,5: | 43 |
| 3 | Erianin,a novel dibenzyl compound in Dendrobium extract,inhibits lung cancer cell growth and migration via calcium/calmodulin-dependent ferroptosis显示文摘Ferroptosis,a novel form of programmed cell death,is characterized by iron-dependent lipid peroxidation and has been shown to be involved in multiple diseases,including cancer.Stimulating ferroptosis in cancer cells may be a potential strategy for cancer therapy.Therefore,ferroptosis-inducing drugs are attracting more attention for cancer treatment.Here,we showed that erianin,a natural product isolated from Dendrobium chrysotoxum Lindl,exerted its anticancer activity by inducing cell death and inhibiting cell migration in lung cancer cells.Subsequently,we demonstrated for the first time that erianin induced ferroptotic cell death in lung cancer cells,which was accompanied by ROS accumulation,lipid peroxidation,and GSH depletion.The ferroptosis inhibitors Fer-1 and Lip-1 but not Z-VAD-FMK,CQ,or necrostatin-1 rescued erianin-induced cell death,indicating that ferroptosis contributed to erianin-induced cell death.Furthermore,we demonstrated that Ca^(2+)/CaM signaling was a critical mediator of erianin-induced ferroptosis and that blockade of this signaling significantly rescued cell death induced by erianin treatment by suppressing ferroptosis.Taken together,our data suggest that the natural product erianin exerts its anticancer effects by inducing Ca^(2+)/CaMdependent ferroptosis and inhibiting cell migration,and erianin will hopefully serve as a prospective compound for lung cancer treatment. | Peng Chen Qibiao Wu Jiao Feng Lili Yan Yitian Sun Shuiping Liu Yu Xiang Mingming Zhang Ting Pan Xiaying Chen Ting Duan Lijuan Zhai Bingtao Zhai Wengang Wang Ruonan Zhang Bi Chen Xuemeng Han Yicong Li Liuxi Chen Ying Liu Xingxing Huang Ting Jin Wenzheng Zhang Hong Luo Xiaohui Chen Yongqiang Li Qiujie Li Guohua Li Qin Zhang Lvjia Zhuo Zuyi Yang Huifen Tang Tian Xie Xiaoping Ouyang Xinbing Sui | 2020 | Signal Transduction and Targeted Therapy2020,5,1: | 42 |
| 4 | A software architecture centric engineering approach for Internetware显示文摘As a new software paradigm evolved by the Internet, Internetware brings many challenges for the traditional software development methods and techniques. Though architecture-based component composition (ABC) approach is originated in the traditional software paradigm, it supports the engineering of Internetware effectively due to its philosophy, rationales and mechanisms. ABC has three major contributions to the en- gineering of Internetware in detail. First, the feature oriented domain modeling method can structure the “disordered”“software entities” to “ordered Internetware” bottom-up in the problem space. Second, the architecture centric design and analysis method can support the development of self-adaptive Internetware. Third, the component operating platform is a reflective and self-adaptive middleware that not only provides Internetware with a pow- erful and flexible runtime infrastructure but also enables the self-adaptation of the structure and individual entities of Internetware. | MEI Hong HUANG Gang ZHAO Haiyan JIAO Wenpin | 2006 | Science in China(Series F)2006,49,6: | 37 |
| 5 | Different treatment strategies and molecular features between right-sided and left-sided colon cancers显示文摘The colon is derived from the embryological midgut and hindgut separately,with the right colon and left colon having different features with regards to both anatomical and physiological characteristics.Cancers located in the right and left colon are referred to as right colon cancer(RCC) and left colon cancer(LCC),respectively,based on their apparent anatomical positions.Increasing evidence supports the notion that not only are there differences in treatment strategies when dealing with RCC and LCC,but molecular features also vary between them,not to mention the distinguishing clinical manifestations.Disease-free survival after radical surgery of both RCC and LCC are similar.In the treatment of RCC,the benefit gained from adjuvant FOLFIRI chemotherapy is superior,or at least similar,to LCC,but inferior to LCC if FOLFOX regimen is applied.On the other hand,metastatic LCC exhibits longer survival than that of RCC in a palliative chemotherapy setting.For KRAS wild-type cancers,LCC benefits more from cetuximab treatment than RCC.Moreover,advanced LCC shows a higher sensitivity to bevacizumab treatment in comparison with advanced RCC.Significant varieties exist at the molecular level between RCC and LCC,which may serve as the cause of all apparent differences.With respect to carcinogenesis mechanisms,RCC is associated with known gene types,such as MMR,KRAS,BRAF,and mi RNA-31,while LCC is associated with CIN,p53,NRAS,mi RNA-146 a,mi RNA-147 b,and mi RNA-1288.Regarding protein expression,RCC is related to GNAS,NQO1,telomerase activity,P-PDH,and annexin A10,while LCC is related to Topo I,TS,and EGFR.In addition,separated pathways dominate progressionto relapse in RCC and LCC.Therefore,RCC and LCC should be regarded as two heterogeneous entities,with this heterogeneity being used to stratify patients in order for them to have the optimal,current,and novel therapeutic strategies in clinical practice.Additional research is needed to uncover further differences between RCC and LCC. | Hong Shen Jiao Yang Qing Huang Meng-Jie Jiang Yi-Nuo Tan Jian-Fei Fu Li-Zhen Zhu Xue-Feng Fang Ying Yuan | 2015 | World Journal of Gastroenterology2015,21,21: | 33 |
| 6 | Modulatory effects of acupuncture on brain networks in mild cognitive impairment patients显示文摘Functional magnetic resonance imaging has been widely used to investigate the effects of acupuncture on neural activity. However, most functional magnetic resonance imaging studies have focused on acute changes in brain activation induced by acupuncture. Thus, the time course of the therapeutic effects of acupuncture remains unclear. In this study, 32 patients with amnestic mild cognitive impairment were randomly divided into two groups, where they received either Tiaoshen Yizhi acupuncture or sham acupoint acupuncture. The needles were either twirled at Tiaoshen Yizhi acupoints, including Sishencong(EX-HN1), Yintang(EX-HN3), Neiguan(PC6), Taixi(KI3), Fenglong(ST40), and Taichong(LR3), or at related sham acupoints at a depth of approximately 15 mm, an angle of ± 60°, and a rate of approximately 120 times per minute. Acupuncture was conducted for 4 consecutive weeks, five times per week, on weekdays. Resting-state functional magnetic resonance imaging indicated that connections between cognition-related regions such as the insula, dorsolateral prefrontal cortex, hippocampus, thalamus, inferior parietal lobule, and anterior cingulate cortex increased after acupuncture at Tiaoshen Yizhi acupoints. The insula, dorsolateral prefrontal cortex, and hippocampus acted as central brain hubs. Patients in the Tiaoshen Yizhi group exhibited improved cognitive performance after acupuncture. In the sham acupoint acupuncture group, connections between brain regions were dispersed, and we found no differences in cognitive function following the treatment. These results indicate that acupuncture at Tiaoshen Yizhi acupoints can regulate brain networks by increasing connectivity between cognition-related regions, thereby improving cognitive function in patients with mild cognitive impairment. | Ting-ting Tan Dan Wang Ju-ke Huang Xiao-mei Zhou Xu Yuan Jiu-ping Liang Liang Yin Hong-liang Xie Xin-yan Jia Jiao Shi Fang Wang Hao-bo Yang Shang-jie Chen | 2017 | Neural Regeneration Research2017,12,2: | 32 |
| 7 | The characteristics of CO_2 assimilation of photosynthesis and chlorophyll fluorescence in transgenic PEPC rice显示文摘With PEPC, PPDK, NADP-ME and PEPC+ PPDK transgenic and untransformed rice (Orysa sativa L.), the activities of related C4 photosynthesis enzymes, the chlorophyll fluorescence parameters, CO2 exchange and other physiological indexes were compared, in which the physiological characteristics of PEPC transgenic rice were mainly studied. The results were as follows: (i) The activities of PEPC in PEPC transgenic rice were 20-fold higher than those in untransformed rice; the light-saturation photosynthetic rates and the carboxylation efficiency of PEPC transgenic rice were increased by 55% and 50% more than those of untransformed rice, respectively, while the CO2 compensation point decreased by 27%. (ii) The PS II photochemical efficiency (Fv/Fm) and photochemical quenching (qp) of transgenic PEPC rice decreased less in comparison with those of untransformed rice after the treatment with high light intensity (3 h) or methyl viologen (MV), a photooxidative reagent, which demonstrated that the tolerance of PEPC | JIAO Demao, LI Xia, HUANG Xueqing, CHI Wei, KUANG Tingyun & Ku SB Maurice1. Institute of Agrobiological Genetics and Physiology, Jiangsu Academy of Agricultural Sciences, Nangjing 210014, China 2. Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China 3. Botany Department, Washington State University, Pullman, WA 99164-4236, USA | 2001 | Chinese Science Bulletin2001,46,13: | 29 |
| 8 | Adaptive Nonlinear Optimal Compensation Control for Electro-hydraulic Load Simulator显示文摘Directing to the strong position coupling problem of electro-hydraulic load simulator(EHLS),this article presents an adaptive nonlinear optimal compensation control strategy based on two estimated nonlinear parameters,viz.the flow gain coefficient of servo valve and total factors of flow-pressure coefficient.Taking trace error of torque control system to zero as control object,this article designs the adaptive nonlinear optimal compensation control strategy,which regards torque control output of closed-loop controller converging to zero as the control target,to optimize torque tracking performance.Electro-hydraulic load simulator is a typical case of the torque system which is strongly coupled with a hydraulic positioning system.This article firstly builds and analyzes the mathematical models of hydraulic torque and positioning system,then designs an adaptive nonlinear optimal compensation controller,proves the validity of parameters estimation,and shows the comparison data among three control structures with various typical operating conditions,including proportion-integral-derivative(PID) controller only,the velocity synchronizing controller plus PID controller and the proposed adaptive nonlinear optimal compensation controller plus PID controller.Experimental results show that systems' nonlinear parameters are estimated exactly using the proposed method,and the trace accuracy of the torque system is greatly enhanced by adaptive nonlinear optimal compensation control,and the torque servo system capability against sudden disturbance can be greatly improved. | Yao Jianyong Jiao Zongxia Shang Yaoxing Huang Cheng | 2010 | Chinese Journal of Aeronautics2010,23,6: | 29 |
| 9 | Lung transplantation as therapeutic option in acute respiratory distress syndrome for coronavirus disease 2019-related pulmonary fibrosis显示文摘Background:Critical patients with the coronavirus disease 2019(COVID-19),even those whose nucleic acid test results had turned negative and those receiving maximal medical support,have been noted to progress to irreversible fatal respiratory failure.Lung transplantation(LT)as the sole therapy for end-stage pulmonary fibrosis related to acute respiratory distress syndrome has been considered as the ultimate rescue therapy for these patients.Methods:From February 10 to March 10,2020,three male patients were urgently assessed and listed for transplantation.After conducting a full ethical review and after obtaining assent from the family of the patients,we performed three LT procedures for COVID-19 patients with illness durations of more than one month and extremely high sequential organ failure assessment scores.Results:Two of the three recipients survived post-LT and started participating in a rehabilitation program.Pearls of the LT team collaboration and perioperative logistics were summarized and continually improved.The pathological results of the explanted lungs were concordant with the critical clinical manifestation,and provided insight towards better understanding of the disease.Government health affair systems,virology detection tools,and modern communication technology all play key roles towards the survival of the patients and their rehabilitation.Conclusions:LT can be performed in end-stage patients with respiratory failure due to COVID-19-related pulmonary fibrosis.If confirmed positive-turned-negative virology status without organ dysfunction that could contraindicate LT,LT provided the final option for these patients to avoid certain death,with proper protection of transplant surgeons and medical staffs.By ensuring instant seamless care for both patients and medical teams,the goal of reducing the mortality rate and salvaging the lives of patients with COVID-19 can be attained. | Jing-Yu Chen Kun Qiao Feng Liu Bo Wu Xin Xu Guo-Qing Jiao Rong-Guo Lu Hui-Xing Li Jin Zhao Jian Huang Yi Yang Xiao-Jie Lu Jia-Shu Li Shu-Yun Jiang Da-Peng Wang Chun-Xiao Hu Gui-Long Wang Dong-Xiao Huang Guo-Hui Jiao Dong Wei Shu-Gao Ye Jian-An Huang Li Zhou Xiao-Qin Zhang Jian-Xing He | 2020 | Chinese Medical Journal2020,,12: | 19 |
| 10 | Mitochondrial transcription termination factor 2 binds to entire mitochondrial DNA and negatively regulates mitochondrial gene expression显示文摘(mTERF2 ) Mitochondrial 抄写结束因素 2 是绑在 mitochondrial DNA 的 mitochondrial 矩阵蛋白质。以前的研究证明了 mTERF2 的 overexpression 能禁止房间增长,但是机制到目前为止一直不是明确的。这研究试图在 vivo 介绍 mTERF2 的有约束力的模式给 mitochondrial DNA (mtDNA ) ,并且在 mtDNA, mRNA 抄写,和蛋白质翻译的复制上调查了 mTERF2 的生物功能。到全部 mtDNA 的 mTERF2 绑定经由染色质 immunoprecipitation 分析被识别。当 mTERF2 是在 HeLa 房间的 overexpressed 时,线粒体基因的 mtDNA 复制效率和表示层次显著地被禁止。mtDNA 内容的抑制水平是有 mRNA 和 mitochondrial 蛋白质表示的减少的层次的一样。总的来说, mTERF2 可能基于它 mtDNA 复制上的否定效果是一个细胞生长禁止者,它最后下面调整在是必要的为的线粒体的氧化 phosphorylation 部件,细胞是的所有精力新陈代谢。 | Weiwei Huang Min Yu Yang Jiao Jie Ma Mingxing Ma Zehua Wang Hong Wu Deyong Tan | 2011 | Acta Biochimica et Biophysica Sinica2011,43,6: | 17 |
| 11 | Human umbilical cord-derived mesenchymal stem cell therapy in patients with COVID-19:a phase 1 clinical trial显示文摘No effective drug treatments are available for coronavirus disease 2019(COVID-19).Host-directed therapies targeting the underlying aberrant immune responses leading to pulmonary tissue damage,death,or long-term functional disability in survivors require clinical evaluation.We performed a parallel assigned controlled,non-randomized,phase 1 clinical trial to evaluate the safety of human umbilical cord-derived mesenchymal stem cells(UC-MSCs)infusions in the treatment of patients with moderate and severe COVID-19 pulmonary disease.The study enrolled 18 hospitalized patients with COVID-19(n=9 for each group).The treatment group received three cycles of intravenous infusion of UC-MSCs(3×107 cells per infusion)on days 0,3,and 6.Both groups received standard COVID-treatment regimens.Adverse events,duration of clinical symptoms,laboratory parameters,length of hospitalization,serial chest computed tomography(CT)images,the PaO2/FiO2 ratio,dynamics of cytokines,and IgG and IgM anti-SARS-CoV-2 antibodies were analyzed.No serious UC-MSCs infusion-associated adverse events were observed.Two patients receiving UC-MSCs developed transient facial flushing and fever,and one patient developed transient hypoxia at 12 h post UC-MSCs transfusion.Mechanical ventilation was required in one patient in the treatment group compared with four in the control group.All patients recovered and were discharged.Our data show that intravenous UC-MSCs infusion in patients with moderate and severe COVID-19 is safe and well tolerated.Phase 2/3 randomized,controlled,double-blinded trials with long-term follow-up are needed to evaluate the therapeutic use of UC-MSCs to reduce deaths and improve long-term treatment outcomes in patients with serious COVID-19. | Fanping Meng Ruonan Xu Siyu Wang Zhe Xu Chao Zhang Yuanyuan Li Tao Yang Lei Shi Junliang Fu Tianjun Jiang Lei Huang Peng Zhao Xin Yuan Xing Fan Ji-Yuan Zhang Jinwen Song Dawei Zhang Yanmei Jiao Limin Liu Chunbao Zhou Markus Maeurer Alimuddin Zumla Ming Shi Fu-Sheng Wang | 2020 | Signal Transduction and Targeted Therapy2020,5,1: | 16 |
| 12 | Generation of RAG 1- and 2-deficient rabbits by embryo microinjection of TALENs显示文摘 | Jun Song Juan Zhong Xiaogang Guo Yongqiang Chen Qingjian zou Jiao Huang Xiaoping Li Quanjun Zhang Zhiwu Jiang Chengcheng Tang Huaqiang Yang Tao Liu Peng Li Duanqing Pei Liangxue Lai | 2013 | Cell Research2013,23,8: | 15 |
| 13 | Neuroprotective Autophagic Flux Induced by Hyperbaric Oxygen Preconditioning is Mediated by Cystatin C显示文摘We have previously reported that Cystatin C(CysC) is a pivotal mediator in the neuroprotection induced by hyperbaric oxygen(HBO) preconditioning; however,the underlying mechanism and how CysC changes after stroke are not clear. In the present study, we demonstrated that CysC expression was elevated as early as 3 h after reperfusion, and this was further enhanced by HBO preconditioning. Concurrently, LC3-II and Beclin-1, two positive-markers for autophagy induction, exhibited increases similar to CysC, while knockdown of CysC blocked these elevations. As a marker of autophagy inhibition, p62 was downregulated by HBO preconditioning and this was blocked by CysC knockdown. Besides, the beneficial effects of preserving lysosomal membrane integrity and enhancing autolysosome formation induced by HBO preconditioning were abolished in CysC-/-rats.Furthermore, we demonstrated that exogenous CysC reduced the neurological deficits and infarct volume after brain ischemic injury, while 3-methyladenine partially reversed this neuroprotection. In the present study, we showed that CysC is biochemically and morphologically essential for promoting autophagic flux, and highlighted the translational potential of HBO preconditioning and CysC for stroke treatment. | Zongping Fang Yun Feng Yuheng Li Jiao Deng Huang Nie Qianzhi Yang Shiquan Wang Hailong Dong Lize Xiong | 2019 | Neuroscience Bulletin2019,35,2: | 14 |
| 14 | Precise orbit determination of a maneuvered GEO satellite using CAPS ranging data显示文摘Wheel-off-loadings and orbital maneuvers of the GEO satellite result in additional accelerations to the satellite itself. Complex and difficult to model, these time varying accelerations are an important error source of precise orbit determination (POD). In most POD practices, only non-maneuver orbital arcs are treated. However, for some applications such as satellite navigation RDSS services, uninterrupted orbital ephemeris is demanded, requiring the development of POD strategies to be processed both during and after an orbital maneuver. We in this paper study the POD for a maneuvered GEO satellite, using high precision and high sampling rate ranging data obtained with Chinese Area Positioning System (CAPS). The strategy of long arc POD including maneuver arcs is studied by using telemetry data to model the maneuver thrust process. Combining the thrust and other orbital perturbations, a long arc of 6 days’ CAPS ranging data is analyzed. If the telemetry data are not available or contain significant errors, attempts are made to estimate thrusting parameters using CAPS ranging data in the POD as an alternative to properly account for the maneuver. Two strategies achieve reasonably good data fitting level in the tested arc with the maximal position difference being about 20 m. | HUANG Yong HU XiaoGong HUANG Cheng YANG QiangWen JIAO WenHai | 2009 | Science China(Physics,Mechanics & Astronomy)2009,52,3: | 13 |
| 15 | An improved three-dimensional spherical DDA model for simulating rock failure显示文摘In this paper, a discontinuous numerical model, namely SDDARF3D(three-dimensional spherical discontinuous deformation analysis for rock failure), is proposed for simulating the whole process of rock failure. Firstly, within the framework of the classical discontinuous deformation analysis(DDA) method, the formulation of three-dimensional spherical DDA(3D SDDA) is deduced; secondly, a bonding and cracking algorithm is constructed and the SDDARF3 D model is proposed; thirdly, corresponding VC++ calculation code is developed and some verification examples are calculated. The simulated results can intuitively reproduce the failure phenomena of rock mass, indicating that the proposed SDDARF3 D numerical model is correct and effective. | JIAO YuYong HUANG GangHai ZHAO ZhiYe ZHENG Fei WANG Long | 2015 | Science China(Technological Sciences)2015,58,9: | 13 |
| 16 | Species-dependent neuropathology in transgenic SOD' aigs显示文摘 | Huaqiang Yang Guohao Wang Haitao Sun Runzhe Shu Tao Liu Chuan-En Wang Zhaoming Liu Yu Zhao Bentian Zhao Zhen Ouyang Dongshan Yang Jiao Huang Yueling Zhou Shihua Li Xiaodan Jiang Zhicheng Xiao Xiao-Jiang Li Liangxue Lai | 2014 | Cell Research2014,24,4: | 13 |
| 17 | Syntheses and Fungicidal Activities of Thiazole-5-carboxanilides Bearing Thioether Group显示文摘 | XUE Hansong LIU Aiping LIU Weidong LI Jianming REN Yeguo HUANG Lu HE Lian OU Xiaoming YE Jiao HUANG Mingzhi | 2016 | Chemical Research in Chinese Universities2016,32,5: | 13 |
| 18 | Carbon pools and fluxes in the China Seas and adjacent oceans显示文摘The China Seas include the South China Sea, East China Sea, Yellow Sea, and Bohai Sea. Located off the Northwestern Pacific margin, covering 4700000 km^2 from tropical to northern temperate zones, and including a variety of continental margins/basins and depths, the China Seas provide typical cases for carbon budget studies. The South China Sea being a deep basin and part of the Western Pacific Warm Pool is characterized by oceanic features; the East China Sea with a wide continental shelf, enormous terrestrial discharges and open margins to the West Pacific, is featured by strong cross-shelf materials transport; the Yellow Sea is featured by the confluence of cold and warm waters; and the Bohai Sea is a shallow semiclosed gulf with strong impacts of human activities. Three large rivers, the Yangtze River, Yellow River, and Pearl River, flow into the East China Sea, the Bohai Sea, and the South China Sea, respectively. The Kuroshio Current at the outer margin of the Chinese continental shelf is one of the two major western boundary currents of the world oceans and its strength and position directly affect the regional climate of China. These characteristics make the China Seas a typical case of marginal seas to study carbon storage and fluxes. This paper systematically analyzes the literature data on the carbon pools and fluxes of the Bohai Sea,Yellow Sea, East China Sea, and South China Sea, including different interfaces(land-sea, sea-air, sediment-water, and marginal sea-open ocean) and different ecosystems(mangroves, wetland, seagrass beds, macroalgae mariculture, coral reefs, euphotic zones, and water column). Among the four seas, the Bohai Sea and South China Sea are acting as CO_2 sources, releasing about0.22 and 13.86–33.60 Tg C yr^(-1) into the atmosphere, respectively, whereas the Yellow Sea and East China Sea are acting as carbon sinks, absorbing about 1.15 and 6.92–23.30 Tg C yr^(-1) of atmospheric CO_2, respectively. Overall, if only the CO_2 exchange at the sea-air interface is considered, the Chinese marginal seas appear to be a source of atmospheric CO_2, with a net release of 6.01–9.33 Tg C yr^(-1), mainly from the inputs of rivers and adjacent oceans. The riverine dissolved inorganic carbon (DIC) input into the Bohai Sea and Yellow Sea, East China Sea, and South China Sea are 5.04, 14.60, and 40.14 Tg C yr^(-1),respectively. The DIC input from adjacent oceans is as high as 144.81 Tg C yr^(-1), significantly exceeding the carbon released from the seas to the atmosphere. In terms of output, the depositional fluxes of organic carbon in the Bohai Sea, Yellow Sea, East China Sea, and South China Sea are 2.00, 3.60, 7.40, and 5.92 Tg C yr^(-1), respectively. The fluxes of organic carbon from the East China Sea and South China Sea to the adjacent oceans are 15.25–36.70 and 43.93 Tg C yr^(-1), respectively. The annual carbon storage of mangroves, wetlands, and seagrass in Chinese coastal waters is 0.36–1.75 Tg C yr^(-1), with a dissolved organic carbon(DOC) output from seagrass beds of up to 0.59 Tg C yr^(-1). Removable organic carbon flux by Chinese macroalgae mariculture account for 0.68 Tg C yr^(-1) and the associated POC depositional and DOC releasing fluxes are 0.14 and 0.82 Tg C yr^(-1), respectively. Thus, in total, the annual output of organic carbon, which is mainly DOC, in the China Seas is 81.72–104.56 Tg C yr^(-1). The DOC efflux from the East China Sea to the adjacent oceans is 15.00–35.00 Tg C yr^(-1). The DOC efflux from the South China Sea is 31.39 Tg C yr^(-1). Although the marginal China Seas seem to be a source of atmospheric CO_2 based on the CO_2 flux at the sea-air interface, the combined effects of the riverine input in the area, oceanic input, depositional export,and microbial carbon pump(DOC conversion and output) indicate that the China Seas represent an important carbon storage area. | Nianzhi JIAO Yantao LIANG Yongyu ZHANG Jihua LIU Yao ZHANG Rui ZHANG Meixun ZHAO Minhan DAI Weidong ZHAI Kunshan GAO Jinming SONG Dongliang YUAN Chao LI Guanghui LIN Xiaoping HUANG Hongqiang YAN Limin HU Zenghu ZHANG Long WANG Chunjie CAO Yawei LUO Tingwei LUO Nannan WANG Hongyue DANG Dongxiao WANG Si ZHANG | 2018 | Science China Earth Sciences2018,61,11: | 12 |
| 19 | Discrete element modeling on the crack evolution behavior of brittle sandstone containing three fissures under uniaxial compression显示文摘Based on experimental results of brittle, intact sandstone under uniaxial compression, the micro-parameters were firstly confirmed by adopting particle flow code(PFC2D). Then, the validation of the simulated models were cross checked with the experimental results of brittle sandstone containing three parallel fissures under uniaxial compression. The simulated results agreed very well with the experimental results, including the peak strength, peak axial strain, and ultimate failure mode. Using the same microparameters, the numerical models containing a new geometry of three fissures are constructed to investigate the fissure angle on the fracture mechanical behavior of brittle sandstone under uniaxial compression. The strength and deformation parameters of brittle sandstone containing new three fissures are dependent to the fissure angle. With the increase of the fissure angle, the elastic modulus, the crack damage threshold,and the peak strength of brittle sandstone containing three fissures firstly increase and secondly decrease. But the peak axial strain is nonlinearly related to the fissure angle. In the entire process of deformation, the crack initiation and propagation behavior of brittle sandstone containing three fissures under uniaxial compression are investigated with respect tothe fissure angle. Six different crack coalescence modes are identified for brittle sandstone containing three fissures under uniaxial compression. The influence of the fissure angle on the length of crack propagation and crack coalescence stress is evaluated. These investigated conclusions are very important for ensuring the stability and safety of rock engineering with intermittent structures. | Sheng-Qi Yang Yan-Hua Huang P.G.Ranjith Yu-Yong Jiao Jian Ji | 2015 | Acta Mechanica Sinica2015,31,6: | 11 |
| 20 | Clinical characteristics and prognosis of young patients with colorectal cancer in Eastern China显示文摘AIM:To explore the clinical characteristics and prognosis of young patients with colorectal cancer patients in Eastern China.METHODS:A total of 1335 patients with colorectal cancer treated from December 1985 to December 2005at the Second Affiliated Hospital of Zhejiang University School of Medicine were studied retrospectively.The patients were divided into two groups,a younger group(aged≤30 years)and an older group(aged>30 years),and comparison was made in the clinical characteristics and prognosis between the two groups.Chisquare test was used for data analysis of all categorical variables,and overall survival(OS)was calculated by the Kaplan-Meier method.A multivariate analysis was performed using the Cox model.RESULTS:There were 42(3.1%)and 1293(96.9%)cases in the younger group and older group,respectively.Univariate analysis showed that the 5-and10-year OS in the younger group were 33.9%and26.1%,respectively,and those in the older group were60.1%and 52.2%,respectively.Younger group had poor survival(χ2=14.146,P=0.000).Multivariate analysis revealed that age was not a dependent factor for prognosis(OR=0.866,95%CI:0.592-1.269,P=0.461).Stratified analysis indicated that in stageⅢandⅣdisease,the 5-and 10-year OS were 24.6%and14.8%in the younger group,and 40.4%and 33.3%in the older group,respectively,with a significant difference between the two groups(χ2=5.101,P=0.024).In the subgroup of radical surgery,the 5-and 10-year OS were 44.3%and 34.2%in the younger group,and69.6%and 60.5%in the older group,with a difference being significant between the two groups(χ2=7.830,P=0.005).CONCLUSION:Compared with older patients,the younger patients have lower survival,especially in the subgroups of stageⅢandⅣdisease and radical surgery. | Jian-Fei Fu Yan-Qin Huang Jiao Yang Cheng-Hao Yi Hai-Long Chen Shu Zheng | 2013 | World Journal of Gastroenterology2013,19,44: | 11 |