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| 1 | Petrogenesis and tectonic implications of early Paleozoic granitoids in East Kunlun belt: Evidences from geochronology, geochemistry and isotopes显示文摘The East Kunlun Orogenic Belt(EKOB) provides an important link to reconstruct the evolution of the Proto-Tethys and Paleo-Tethys realm. The EKOB is marked by widespread Early Paleozoic magmatism.Here we report the petrology, bulk geochemistry, zircon Ue Pb dating and, Lue Hf and SreN d isotopic data of the Early Paleozoic granitic rocks in Zhiyu area of the southern EKOB. Based on the zircon U-Pb dating, these granitoids, consisting of diorite, granodiorite and monzogranite, were formed during 450 -430 Ma the Late Ordovician to Middle Silurian. The diorite and granodiorite are high Sr/Y ratio as adakitic affinities, and the monzogranite belongs to highly fractionated I-type. Their(^(87)Sr/^(86)Sr)ivalues range from 0.7059 to 0.7085, εNd(t) values from -1.6 to -6.0 and the zircon εHf(t) values show large variations from +9.1 to -8.6 with Hf model ages(T_(DM2)) about 848 Ma and 1970 Ma. The large variations of whole-rock Nd and zircon Hf isotopes demonstrate strong isotopic heterogeneity of the source regions which probably resulted from multi-phase underplating of mantle-derived magmas. Geochemical and isotopic studies proved that the diorite and granodiorite had been derived from partial melting of heterogeneous crustal source with variable contributions from ancient continental crust and juvenile components, and the monzogranites were representing fractional crystallization and crustal contamination for arc magma. The Early Paleozoic adakitic rocks and high-K calc-alkaline granitoids in the southern EKOB were likely emplaced in a continental marginal arc setting possibly linked to the southwards subduction of the Paleo Kunlun Ocean and the magma generation is linked to partial melting of thickened continental crust induced by underplating of mantle-derived magmas. | Guochen Dong Mingfei Luo Xuanxue Mo Zhidan Zhao Liangqiong Dong Xuehui Yu Xin Wang Xiaowei Li Xiongfei Huang Yanbin Liu | 2018 | Geoscience Frontiers2018,9,5: | 10 |
| 2 | A reactive oxygen species burst causes haploid induction in maize显示文摘Haploid induction (HI) is an important tool in crop breeding. Phospholipase A1 (ZmPLA1)/NOT LIKE DAD (NLD)/MATRILINEAL (MTL) is a key gene controlling HI in maize;however, the underlying molecular mechanism remains unclear. In this study, to dissect why loss of ZmPLA1 function could mediate HI we performed a comprehensive multiple omics analysis of zmpla1 mutant anthers by integrating transcriptome, metabolome, quantitative proteome, and protein modification data. Functional classes of significantly enriched or differentially abundant molecular entities were found to be associated with the oxidative stress response, suggesting that a reactive oxygen species (ROS) burst plays a critical role in HI. In support of this, we further discovered that a simple chemical treatment of pollen with ROS reagents could lead to HI. Moreover, we identified ZmPOD65, which encodes a sperm-specific peroxidase, as a new gene controlling HI. Taken together, our study revealed a likely mechanism of HI, discovered a new gene controlling HI, and created a new method for HI in maize, indicating the importance of ROS balance in maintaining normal reproduction and providing a potential route to accelerate crop breeding. | Chenglin Jiang Ju Sun Rui Li Shijuan Yan Wei Chen Liang Guo Guochen Qin Pengcheng Wang Cheng Luo Wenjie Huang Qinghua Zhang Alisdair R.Fernie David Jackson Xiang Li Jianbing Yan | 2022 | Molecular Plant2022,15,6: | 2 |
| 3 | Response of PM_(2.5)-bound elemental species to emission variations and associated health risk assessment during the COVID-19 pandemic in a coastal megacity显示文摘The coronavirus(COVID-19)pandemic is disrupting the world from many aspects.In this study,the impact of emission variations on PM_(2.5)-bound elemental species and health risks associated to inhalation exposure has been analyzed based on real-time measurements at a remote coastal site in Shanghai during the pandemic.Most trace elemental species decreased significantly and displayed almost no diel peaks during the lockdown.After the lockdown,they rebounded rapidly,of which V and Ni even exceeded the levels before the lockdown,suggesting the recovery of both inland and shipping activities.Five sources were identified based on receptor modeling.Coal combustion accounted for more than 70%of the measured elemental concentrations before and during the lockdown.Shipping emissions,fugitive/mineral dust,and waste incineration all showed elevated contributions after the lockdown.The total non-carcinogenic risk(HQ)for the target elements exceeded the risk threshold for both children and adults with chloride as the predominant species contributing to HQ.Whereas,the total carcinogenic risk(TR)for adults was above the acceptable level and much higher than that for children.Waste incineration was the largest contributor to HQ,while manufacture processing and coal combustion were the main sources of TR.Lockdown control measures were beneficial for lowering the carcinogenic risk while unexpectedly increased the non-carcinogenic risk.From the perspective of health effects,priorities of control measures should be given to waste incineration,manufacture processing,and coal combustion.A balanced way should be reached between both lowering the levels of air pollutants and their health risks. | Guochen Wang Kan Huang Qingyan Fu Jia Chen Juntao Huo Qianbiao Zhao Yusen Duan Yanfen Lin Fan Yang Wenjie Zhang Hao Li Jian Xu Xiaofei Qin Na Zhao Congrui Deng | 2022 | Journal of Environmental Sciences2022,34,12: | 2 |
| 4 | MODEL STUDY OF DREDGED CHANNEL SILTATION IN OFFSHORE OPEN WATER显示文摘Based on the model study, the siltation of dredged channel under the condition of clear water and sediment-water mixture in Lianyun Harbor, Jiangsu Province and the experimental method under complex hydrodynamic elements such as tides, winds, waves and tidal currents are studied. The regularities of the variation of the velocity in the dredged channel in clear water are discussed as well. A group of curves such as water depth, velocity and angle has been plotted as a guide to the selection of a proper direction for a dredged channel. The intensity of siltation and the rate of deposition in the condition of sediment-water mixture, and the relationship between the dimensions of the dredged channel and the deposition amount can be estimated. | Li, Anzhong Li, Guochen Liu, Guangchen | 1990 | China Ocean Engineering1990,5,1: | 2 |
| 5 | Sorption of humic acid to organo layered double hydroxides in aqueous solution 显示文摘 | Zhang Guochen Wu Tao Li Yujiang | 2012 | Chemical Engineering Journal2012,191,: | 1 |
| 6 | The application of superweak bioluminescence on freshness degree of chicken egg显示文摘 | Zhao Hongxia Li guochen Li Qiangzhang | 2007 | Journal of Luminescence2007,,14: | 1 |
| 7 | Hydrogen- producing capability of anaerobic activated sludge in types of fermentations in a continuous stirred-tank reactor显示文摘 | Li Jianzheng Zheng Guochen He Junguo | 2009 | Biote- chnology Advances2009,27,5: | 1 |
| 8 | Development of Measuring System of Plant Electrical Potential and Its Application显示文摘Based on the characters of plant potentials, it introduced the construction and technology in developing the measuring system of plant electrical potentials, the input impedance of the amplifier must be enough high(= 1010~ 1012Ω) in order to measuring the plant weak signals and ensuring high common mode rejection ratio (CMRR). And wavelet transform was applied in denoising based on cross-validation (CV)threshold value. the experiment showed that this system could effectively detect the change of plant potentials,four-week old cucumber was stimulated by heat wounding, the variation potential (VP) and action potential(AP) would be evoked, the AP's varying amplitude can reach 40mV; the AP changed very fast, its duration time is about 0.01~0.02s and its amplitude often change from 15μV~5mV. | Yu Haiye Li Guochen Ma Chenglin | 2005 | 仪器仪表学报2005,26,z1: | 1 |
| 9 | Clinical Study on Combined Acupuncture and Speech Rehabilitation in Treating Postapoplectic Aphasia显示文摘 | Li Guochen Zhao Xin | 2011 | J Acupunct Tuina Sci2011,9,2: | 1 |
| 10 | Removal of anionic dyes from aqueous solution by leaching solutions of white mud 显示文摘 | Zhang Guochen Li Xia Li Yujiang | 2011 | Desalination2011,274,1: | 1 |
| 11 | Application of uniform design and genetic algorithm in optimization of reversed-phase chromatographic separation显示文摘 | XUE Guochen XIN Li | 2003 | Chemometrics and Intelligent Laboratory Systems2003,68,2: | 1 |
| 12 | Hydrogen-producing capability of anaerobic activated sludge in three types of fermentations in a continuous stirred-tank reactor 显示文摘 | Li Jianzheng Zheng Guochen He Junguo Chang Sheng Qin Zhi | 2009 | Biotechnology Advances2009,27,5: | 1 |
| 13 | The application of super-weak bioluminescence on freshness degree of chicken egg 显示文摘 | Zhao Hongxia Li Guochen Li Qiangzheng | 2008 | Journal of Luminescence2008,,14: | 1 |
| 14 | Study on game theory of social law enforcement 显示文摘 | Zhang Guochen Li Zhicheng | 2003 | Journal of Beijing Institute of Technology2003,12,: | 1 |
| 15 | Role of depressive symptoms in cardiometabolic diseases and subsequent transitions to all-cause mortality:an application of multistate models in a prospective cohort study显示文摘Background and purpose The role of depression in the development and outcome of cardiometabolic diseases remains to be clarified.We aimed to examine the extent to which depressive symptoms affect the transitions from healthy to diabetes,stroke,heart disease and subsequent all-cause mortality in a middle-aged and elderly European population.Methods A total of 78212 individuals aged≥50 years from the Survey of Health Ageing and Retirement in Europe were included.Participants with any baseline cardiometabolic diseases including diabetes,stroke and heart disease were excluded.Depressive symptoms were measured by the Euro-Depression scale at baseline.Participants were followed up to determine the occurrence of cardiometabolic diseases and all-cause mortality.We used multistate models to estimate the transition-specific HRs and 95%CIs after adjustment of confounders.Results During 500711 person-years of follow-up,4742 participants developed diabetes,2173 had stroke,5487 developed heart disease and 7182 died.Depressive symptoms were significantly associated with transitions from healthy to diabetes(HR:1.12,95%CI:1.05 to 1.20),stroke(HR:1.31,95%CI:1.18 to 1.44),heart disease(HR:1.26,95%CI:1.18 to 1.34)and all-cause mortality(HR:1.41,95%CI:1.34 to 1.49).After cardiometabolic diseases,depressive symptoms were associated with the increased risk of all-cause mortality in patients with diabetes(HR:1.54,95%CI:1.25 to 1.89),patients who had stroke(HR:1.29,95%CI:1.03 to 1.61)and patients with heart disease(HR:1.21,95%CI:1.02 to 1.44).Conclusions Depressive symptoms increase the risk of diabetes,stroke and heart disease,and affect the risk of mortality after the onset of these cardiometabolic conditions.Screening and treatment of depressive symptoms may have profound implications for the prevention and prognosis of cardiometabolic diseases. | Yanan Qiao Siyuan Liu Guochen Li Yanqiang Lu Ying Wu Yi Ding Chaofu Ke | 2021 | Stroke & Vascular Neurology2021,6,4: | 1 |
| 16 | Clinical Study on Combined Acupuncture and Speech Rehabilitation in Treating Postapoplectic Aphasia显示文摘 | Li Guochen Zhao Xin | 2011 | J Acupunct Tuina Sci2011,9,2: | 1 |
| 17 | Effect of illumination on the hydrogen-production capability of anaerobic activated sludge显示文摘在引起发酵的氢生产系统上调查照明的影响,从一个厌氧的困惑的反应堆的二种厌氧的激活的污泥(絮凝物和小粒) 的氢生产效率在可见的光下面被检测,黑暗、轻黑暗分别地。10 mL 絮凝物污泥或小粒的污泥分别地被接种到 100 mL 冲淡的糖蜜(8000 兆欧的化学的氧需求由精力散 X 光检查察觉(EDX ) 和 Thermogravimetric 分析和微分扫描热量测定(DSC/TGA ) 学习了。原料和形成的陶艺的矿物质阶段被 X 光检查衍射(XRD ) 决定。重金属的沥滤的特征与诱导地联合的血浆原子排放 Spectrometry (ICP-AES ) 被调查。决策支持系统和泥土的不同比率被混合并且压进未加工的小团。在弄干和预热处理以后,未加工的小团是在 1150 点的 sintered 吗? | Guochen ZHENG Jianzheng LI Feng ZHAO Liguo ZHANG Li WEI Qiaoying BAN Yongsheng ZHAO | 2012 | Frontiers of Environmental Science & Engineering2012,6,1: | 1 |
| 18 | Aesthetic Factors In Foreign Language Teaching显示文摘 | Li Guochen | | 0,,02: | 1 |
| 19 | Hydrogen-producing capability of anaerobic activated sludge in three types of fermentations in a continuous stirred tank reactor显示文摘 | Li Jianzheng Zheng Guochen He Junguo Chang Sheng Qin Zhi | | 0,,05: | 1 |
| 20 | The effects of the source composition on the origin of orthopyroxenebearing adakitic granitoid in West Qinling,Central China显示文摘Orthopyroxene-bearing granodiorite(sometimes referred to as‘charnockite’)with an adakitic affinity is a rare type of granitoid.It is generally accepted that the stabilization of orthopyroxene in igneous charnockites essentially requires low aH_(2)O and/or high temperatures in a closed system.However,orthopyroxene can be an antecryst in a trans-crustal magmatic system.In this regard,orthopyroxenebearing granitoids are somewhat analogous to pseudo-charnockites,where the orthopyroxene stems from a mafic reservoir.On the other hand,the source compositions of continental adakites can vary,which is often ignored in the interpretation of their contribution to the adakitic geochemical signature.In this study,we have investigated a rare orthopyroxene-bearing felsic pluton from the Zhuyuan area of West Qinling,Central China.The Zhuyuan pluton was emplaced in the Middle–Late Triassic(222–217 Ma)and is mainly composed of metaluminous to weakly peraluminous granodiorites belonging to the high-K calc-alkaline series.Moreover,they are characterized by high Mg#values(49.7–60.9)and Sr contents(471–697 ppm),low Y(12.2–15.4 ppm)and Yb(1.03–1.24 ppm)contents,high Sr/Y(33.2–46.2)and(La/Yb)_(N)(15.3–21.4)ratios,and weakly negative Eu anomalies(Eu/Eu^(*)=0.78–0.89).The Zhuyuan adakitic granodiorites exhibit fairly limited Sr–Nd–Pb isotopic ratios and variable zircon initial Hf isotopes,indicating a major contribution from the Neoproterozoic basement of the Qinling Orogenic Belt.There is no evidence of any formation through high-pressure magmatic processes,and we propose that the adakitic signature of the Zhuyuan pluton could have been inherited from its source rocks(i.e.,from the Neoproterozoic basement).The orthopyroxenes in the Zhuyuan granodiorites display poikilitic textures with high MgO,NiO and Cr_(2)O_(3) contents,indicating that they have an antecrystic origin.Studies of regional tectonic evolution have shown that the Zhuyuan granodiorites formed during the tearing stage of the A’nimaque–Mianlue oceanic subduction slab.Therefore,this study emphasizes the effect of source inheritance on the formation of pseudo-charnockite with an adakitic signature. | Yuanhui Xie Xiaowei Li Xuanxue Mo Guochen Dong Yuqin Sun Wei Shan | 2023 | Geoscience Frontiers2023,14,3: | 1 |