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7篇 您的检索式:作者名="Yehong SHI"
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1Characterization of humic acids extracted from the sediments of the various rivers and lakes in China显示文摘The humic acids (HAs) isolated from the sediments of the various rivers,lakes,and reservoirs in China were studied using elemental analyzer,fourier transform infrared (FT-IR),and CP/MAS 13C nuclear magnetic resonance (NMR) spectroscopy.The results showed that the HAs were characterized by some common chemical and physicochemical properties,but they also pose some differences in the C-containing functional groups.The C/N,C/H,O/C,and O/H ratios differ widely for the various HAs,showing that the elemental composition of the HAs from the various sediments was different due to the different environmental conditions.All HAs show similar spectra with different intense absorbance in the region of 4000-2000 cm-1,suggesting that they have very similar structures and functional groups.The absorbance region between 1900 and 400 cm-1 also showed similar spectra with different intense absorbance,different relative intensities,and some relevant differences for the various HAs.The total aromaticities for the six HAs varied from 23.1% to 41.8%.The differences in the elemental composition and functional groups for the various HAs were attributed to their different biogeochemical origins.The HAs in the sediments from Taihu Lake (one freshwater shallow lake with heavy eutrophication),the Pearl River (the tropical river),and the Liao River (located at the joint of the temperate zone and cold-temperate zone) showed different structural properties due to their different geographical and climate zones.These different properties for the six HAs were expected to affect the sorption,distributions,and fates of heavy metals and organic chemicals.Mengchang HE Chunye LIN 2008Journal of Environmental Sciences2008,20,11:35
2GIAHS Project and Its Implementation in China显示文摘GIAHS Project and Concept In 2002,Food and Agriculture Organization of the United Nations(hereafter FAO)started an initiative for the conservation and adaptive management of Globally Important Agricultural Heritage Systems(abbreviated as GIAHS) to safeguard and support world’s agro-culturalMIN Qingwen~1,SUN Yehong~(1,2) and SHI Yuanyuan~1 1.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China 2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China 2010Journal of Resources and Ecology2010,1,1:9
3Determination of dioxin-like polychlorinated biphenyls in soil and moss from Fildes Peninsula,Antarctica显示文摘Dioxin-like polychlorinated biphenyls(PCBs) are a class of toxic and persistent chemicals that are often found in the environment.The determination of dioxin-like PCBs in Fildes Peninsula,Antarctica,is reported in this paper.Dioxin-like PCBs were widely distributed in Antarctic soil and moss with concentration of 2.23-27.2 pg/g in soil and 10.4-812 pg/g in moss.The highest concentrations were found in the Ardley Island area and the lowest concentrations on the west coast.The contribution of PCB-118 to the ∑12PCBs ranged from 36.0% to 69.6% in soil,and 17.2% to 43.4% in moss.The congener specific patterns in soil and moss were similar.Long-range atmospheric transport is thought to be the main source of PCBs detected on King George Island.The ∑12PCBs toxic equivalent(TEQ) in soil was 0.400×10?3 to 516×10?3 pg(TEQ)/g with a mean value of 147×10?3 pg(TEQ)/g.PCB-126 had the largest contribution(81.1%) to the ∑12PCBs TEQ in soil.The ∑12PCBs TEQ in moss ranged from 2.90×10?3 to 1.19 pg/g with a mean value of 0.482 pg/g.PCB-126 was also the largest contributor(91.4%) to the ∑12PCBs TEQ in moss.The mean TEQ in moss was about 40 times that in soil.WANG Qiang SHI YeHong HU JianXin YAO ZiWei FANG XueKun DONG YiAn 2012Chinese Science Bulletin2012,57,9:3
4Leucine-rich glioma-inactivated protein 1 antibody-mediated autoimmune encephalitis in a 4-year-old girl:a case report显示文摘Background:Leucine-rich glioma-inactivated protein 1(LGI1)antibody-mediated encephalitis is a rare subtype of autoimmune encephalopathy,which is associated with autoimmunity against the neuronal plasma membrane proteins.The characteristic symptoms of this disease are memory dysfunction,seizures,faciobrachial dystonic seizures,cognitive deficits,neuropsychiatric disturbances,and intractable hyponatremia.The diagnosis of this disease mainly depends on the presence of anti-LGI1 antibody in serum or cerebrospinal fluid of patients.LGI1 antibody encephalitis has been reported mostly in adults,with rare occurrences in children.Case presentation:In this report,we described a 4-year-old girl with typical seizures.Seizure types included focal seizures and generalized tonic-clonic seizures.The electroencephalogram findings showed focal discharges.Brain magnetic resonance imaging(MRI)showed normal.The cerebrospinal fluid(CSF)levels of cells,glucose,and chloride were within the normal range,and the culture did not reveal growth of any pathogen.Test of serum LGI1-Ab was positive,while the tests for autoimmune encephalitis antibody series in CSF were negative.The seizures of the patient were completely controlled after the therapy of immunoglobulin,methylprednisolone and antiepileptic drugs(AEDs),and the mental state almost returned to normal.Conclusion:To our knowledge,the patient described here may be the youngest case of LGI1 antibody encephalitis reported to date.Children with the LGI1 antibody-associated encephalitis may present only with single symptoms such as epileptic seizures and have good response to the therapy of immunoglobulin,methylprednisolone and antiepileptic drugs.Our case report will provide hints for pediatricians in the diagnosis and treatment of LGI1-antibody encephalitis.Junxia Luo Jianguo Shi Yehong Chen Wandong Hu Yujie Guo Guangshun Hou Zaifen Gao 2021Acta Epileptologica2021,3,1:1
5Comparative study on PCDD/F pollution in soil from the Antarctic, Arctic and Tibetan Plateau显示文摘Shenglan Jia Qiang Wang Li Li Xuekun Fang Yehong Shi Weiguang Xu Jianxin Hu 2014Science of the Total Environment2014,,:1
6Correction to:Leucine-rich gliomainactivated protein 1 antibody-mediated autoimmune encephalitis in a 4-year-old girl:a case report显示文摘Correction to:Acta Epileptologica 3,4(2021)http://gffzzd3cc09b8251d45dfskvxnn699b9bo6vow.ffgz.tsg.suse.edu.cn/10.1186/s42494-021-00039-z After publication of this article[1],it is reported the below corrections need to be made with it.1.The following sentence need to be added to the end of‘Background’section:“This study was approved by the Institutional Ethics Committee of Qilu Children’s Hospital of Shandong University and informed consent has been obtained from the guardian of patient prior to analysis.”Junxia Luo Jianguo Shi Yehong Chen Wandong Hu Yujie Guo Guangshun Hou Zaifen Gao 2021Acta Epileptologica2021,3,1:0
7Gridded usage inventories of chlordane in China显示文摘Abstract Chlordane (1,2,4,5,6,7,8,8-octachloro-3a,4,7, 7a-tetra-hydro-4,7-methanoindane) is one of organochlor- ine pesticides (OCPs) which has been listed as one of the persistent organic pollutants (POPs) to be reduced and finally eliminated in the Stockholm Convention on Persistent Organic Pollutants, because of its great persistence, toxicity, bio-accumulation and long-range transport potential. It is critical to create a national chlordane usage inventories for China to compile chlordane emission inventories, which is helpful for carrying out risk assessments and other researches related to chlordane in China. The annual data of chlordane usage was calculated and modified in accordance with the reported annual production of chlordane which was caculated on the basis of the termite distribution, the data of chlordane usage rate and the annual new construction area (NCA). With the help of Geographic Information System, the usage data of this NCA were allocated to a grid system then, with a 1/4° longitude by 1/6°latitude resolution and a size for each grid cell of approximately 25 km by 25 km. Between 1988 and 2008, the total usage of chlordane in China was 2745 t, accounting for approximately 80% of the production in the same period. Zhejiang Province was the largest consumer of chlordane in China, whose usage adds up to 980 t, greatly exceeding other provinces/regions, followed by Jiangsu Province (534 t) and Sichuan Province (428 t). The region with the least usage of chlordane was Beijing. Provinces of Guizhou, Henan and Hebei did not use any chlordane, even though termites had occurred in these provinces. Gridded usage inventories showed that the intensive use of chlordane was concentrated in the southeast part of China, Yangtze River Delta and Pearl River Delta in particular. The satisfaction of the inventories was supported by the consistence between the estimated data of annual usage and the reported annual production of chlordane, and by the consistence between distribution pattern of chlordane's usage and ambient air concentration.Qiang WANG Lijuan ZHAO Xuekun FANG Jianhua XU Yifan LI Yehong SHI Jianxin HU 2013Frontiers of Environmental Science & Engineering2013,7,1:0
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