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Cloning and expression of putative ethylene receptor genes in soybean plant

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Progress in Natural science:Materials International 2007年第10期17卷 1152-1160页

作者： Xie Zongming1,2.3, Lei Gang1,2. Wuriyanghan Hada1,2. Tian Aiguo1, Zhang Jinsong1 and Chen Shouyi1(1. National Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, chinese academy of sciences, Beijing 100101, china 2. Graduate School of chinese academy of sciences, Beijing 100039, china 3. Xinjiang academy of Agricultural and Reclamation science, Shihezi 832.00, china) National Key Laboratory of Plant Genomics Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China Graduate School of chinese academy of sciences Beijing 100039 China Xinjiang academy of Agricultural and Reclamation science Shihezi 832000 China

Ethylene plays important roles in plant growth, development, and stress responses, and ethylene receptors have been identified and studied extensively in various plant species. Here we report the cloning of four ethylene receptor genes from soybean, i.e. GmETR1, GmERS1, GmETR2.and GmEIN4. Construction of the phylogenic tree showed that GmETR1 and GmERS1 belong to subfamily I whereas GmETR2.and GmEIN4 belong to subfamily II. The four ethylene receptor genes showed different tissue-specific expression patterns in roots, stems, leaves, cotyledons, flowers, pods and seeds of soybean. These genes were differentially regulated by various abiotic stresses and plant hormones. The possible roles of the four genes in soybean plant were also discussed.

关键词： abiotic stress expression analysis ethylene receptor plant hormone soybean.

Observation results of relativistic electrons detected by Fengyun-1 satellite and analysis of relativistic electron enhancement (REE) events

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science china(Physics,Mechanics & Astronomy) 2008年第12期51卷 1947-1956页

作者： YANG XiaoChao1,2. & WANG ShiJin1 1 Center for Space science and Applied Research,{2.s, Beijing 100190, {2. 2.Graduate University of{2.s, Beijing 100049, {2. 1. Center for Space science and Applied Research Chinese Academy of Sciences Beijing 100190 China 2. Graduate University of chinese academy of sciences Beijing 100049 China

The space particle component detector on Fengyun-1 satellite which works at the sun-synchronous orbit of about 870 km altitude has detected relativistic electrons for a long time. In comparison with the SAMPEX satellite observations during 1999–2.04, the relativistic electron data from Fengyun-1 satellite from June 1999 to 2.05 are used to analyze the relativistic electron enhancement (REE) events at the low earth orbit, and the possible correlation among REE events at the low earth orbit, high-speed solar wind and geomagnetic storms is discussed. The statistical result presents that 45 REE events are found in total during this time period, and the strong REE events with the maximum daily average flux > 400 cm?2.srt-1·s?1 occur mostly during the transition period from solar maximum to solar minimum. Among these 45 REE events, four strong REE events last a longer time period from 2.-to 51-day and correlate closely with high speed solar wind and strong geomagnetic storms. Meanwhile, several strong geomagnetic storms occur continuously before these REE events, and these continuous geomagnetic storms would be an important factor causing these long-lasting strong REE events. The correlation analysis for overall 45 events indicates that the strength of the REE events correlates with the solar wind speed and the strength of the geomagnetic storm, and the correlation for strong REE events is much stronger than that for weak REE events.

关键词： relativistic electron enhancement low earth orbit high-speed solar wind geomagnetic storm

A pulse radiolysis study on electron affinity of piperonal

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science china Chemistry 2005年第5期48卷 476-480页

作者： MA Jianhua1, LIN Weizhen2. WANG Wenfeng2.& YAO Side2.1. College of Biology Engineering, Jimei University, Xiamen 36102., china 2. shanghai Institute of Applied Physics,{2.s, shanghai 2.1800, china 1. College of Biology Engineering Jimei University 361021 Xiamen China 2. shanghai Institute of Applied Physics Chinese Academy of Sciences 201800 Shanghai China

The piperonal electron affinity was studied using pulse radiolysis technique. The electron transfer reaction process between piperonal and anthraquinone-2.sulfate was observed in the pH 7 phosphoric acid salt buffer. The transient absorption spectra of electron transfer re-action between piperonal and anthraquinone-2.sulfate were obtained, and the initial proof of the electron transfer between electron donor and acceptor was provided directly. The one-electron reduction potential of piperonal was determined to be ?0.457 V.

关键词： piperonal, pulse radiolysis, one-electron reduction potential.

Strong decays of N~*(1535) in an extended chiral quark model

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science china(Physics,Mechanics & Astronomy) 2009年第10期52卷 1452-1457页

作者： AN ChunSheng1,2.3 & ZOU BingSong1,2.3 1 Institute of High Energy Physics,{2. academy of {2.s,Beijing 100049,china 2.Theoretical Physics Center for {2. Facilities,{2. academy of {2.s,Beijing 100049,china 3 Graduate University of{12.s,Beijing 100049,china Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Theoretical Physics Center for science Facilities Chinese Academy of Sciences Beijing 100049 China Graduate University of chinese academy of sciences Beijing 100049 China

The strong decays of the N*(1535) resonance are investigated in an extended chiral quark model by including the low-lying $ qqqq\bar q $ components in addition to the qqq component. The results show that these five-quark components in N*(1535) contribute significantly to the N*(1535) → Nπ and N*(1535) → Nη decays. The contributions to the Nη decay come from both the lowest energy and the next-tolowest energy five-quarks components, while the contributions to the Nπ decay come from only the latter one. Taking these contributions into account, the description for the strong decays of N*(1535) is improved, especially for the puzzling large ratio of the decays to Nη and Nπ.

关键词： N*(1535) strong decays five-quark components

Interfacial behaviors of PMMA-PEO block copolymers at the air/water interface

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science china Chemistry 2005年第6期48卷 567-573页

作者： CHENG Caixia1, JIAO Tifeng2. TANG Rupei1, LIU Minghua2.& XI Fu1 1. State Key Laboratory of Polymer Physics and Chemistry, Joint Laboratory of Polymer {2. and Materials, Institute of Chemistry, chinese academy of sciences, Beijing 100080, {2. 2. CAS Key Laboratory of Colloid and Interface {2., Institute of Chemistry, chinese academy of sciences, Beijing 100080, {2. 1. State Key Laboratory of Polymer Physics and Chemistry Joint Laboratory of Polymer Science and Materials Institute of Chemistry Chinese Academy of Sciences 100080 Beijing China 2. CAS Key Laboratory of Colloid and Interface science Institute of Chemistry Chinese Academy of Sciences 100080 Beijing China

Diblock copolymer of PMMA2.1-b-PEO114 and triblock copolymer of PMMA12.-b- PEO2.7-b-PMMA12. were synthesized and their interfacial properties at the air-water interface were investigated, where both blocks of polyethylene oxide (PEO) and poly(methyl methacrylate) (PMMA) are surface active but the former is soluble in water while the latter is not. Both the block copolymers could form monolayers with two obvious transition regions. The first transition point is around 10 mN/m, which could be assigned to the pancake-brush change of the PEO chains. The other is around 18 mN/m, which could be ascribed to the condensed packing of PMMA. The surface morphological changes during the compression of the Langmuir monolayers are inves-tigated by using the AFM and SEM methods for the films deposited at different surface pressure or molecular areas. At a lower surface pressure, a typical morphology of PEO-con- taining lipopolymers is observed. Upon compression, sphere-dominant morphologies were observed. While the diblock copolymer is easy to folding, the triblock copolymer is in favor of formation of circular domains through vesiculation.

关键词： PMMA-PEO, block copolymers, monolayer, Langmuir-Blodgett films, AFM.

chinese Clinical Practice Guidelines for the Prevention and Treatment of Mother-to-Child Transmission of Hepatitis B Virus(Version 2.2.)

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Infectious Microbes & Diseases 2024年第3期6卷 108-116页

作者： Jinfeng Liu Qinglei Zeng Fanpu Ji Hong Ren Wenhong Zhang Lanjuan Li Yingren Zhao Infectious Diseases Physicians Branch of chinese Medical Doctor Association chinese Society of Infectious Diseases of chinese Medical Association The First Affiliated Hospital of Xi’an Jiaotong University Xi’anChina Shaanxi Clinical Medical Research Center of Infectious Diseases Xi’anChina The First Affiliated Hospital of Zhengzhou University ZhengzhouChina The Second Affiliated Hospital of Xi’an Jiaotong University Xi’anChina The Second Affiliated Hospital of Chongqing Medical University ChongqingChina Huashan Hospital Fudan UniversityShanghaiChina State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina 不详

The chinese Clinical Practice Guidelines for the prevention and treatment ofmother-to-child transmission of hepatitis B virus,developed by the chinese Society of Infectious Diseases of the chinese Medical Association in 2.19,serves as a valuable reference for standardizing the process of preventing mother-to-child transmission in *** new evidence emerges,it is crucial that timely and regular updates are made to the clinical practice guidelines so as to optimize guidance for clinical practice and *** this end,the Infectious Disease Physician Branch of chinese Medical Doctor Association and the chinese Society of Infectious Diseases of chinese Medical Association,in collaboration with multidisciplinary experts,have updated the guidelines based on the latest domestic and international research advancements and clinical practice,in order to provide guidance and reference for clinicians andmaternal and child healthcare workers.

关键词： guidelines hepatitis B virus mother-to-child transmission prevention treatment update

Recent study of emission line star 3G71

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chinese science Bulletin 1998年第6期43卷 470-473页

作者： HANG Hengrong 1,2.and XIA Jianping+1 1. Purple Mountain Observatory, chinese academy of sciences, Nanjing 2.0008, china 2. Joint Laboratory for Optical Astronomy, chinese academy of sciences, Nanjing 2.0008, china Purple Mountain Observatory Chinese Academy of Sciences Nanjing China Joint Laboratory for Optical Astronomy Chinese Academy of Sciences Nanjing China

New spectral observations of 3G71 are presented. The main features of optical spectra which exhibit a lot of forbidden lines and unusual strong H-Balmer emission lines are discussed. Our data, together with its large IRAS infrared color excess and other characteristics, show evidence that the star may be a Herbig Ae/Be star rather than the optical counterpart of Be/X-ray source of 1H2.14+589.

关键词： Be/X-ray binary emission line IRAS identification Herbig Ae/Be star.

Wind vector retrieval using dual polarization imagery of ASAR

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Progress in Natural science:Materials International 2006年第11期16卷 1183-1187页

作者： SONG Guiting~ 1,2., HOU Yijun~1** and QI Peng~1(1. Institute of Oceanology, chinese academy of sciences, Qingdao 2.6071, china 2. Graduate School, chinese academy of sciences, Beijing 100039, china) [a]Institute of Oceanology Chinese Academy of Science Qingdao China [b]Graduate School Chinese Academy of Sciences Beijing China

A new algorithm for retrieving wind vector using dual polarization imagery of advanced synthetic aperture radar (ASAR) is developed and tested. Based on the combination of co-polarization and cross-polarization, this new algorithm effectively eliminates the 180° ambiguity which occurs when using single imagery of the ASAR to retrieve wind vector. This algorithm also solves the problem that the retrieval results will break down on very small spatial scales. The results retrieved from dual polarization imagery of ASAR show that the wind speed and direction are in agreement with the data from Quikscat and buoy measurements. The root mean square errors of wind direction and speed between the retrieved results and data from Quikscat are 2.2.° and 0.53 m/s, respectively. Comparisons between the new method and the traditional method show that the new methods fit the buoy data and Quikscat data a little better than the traditional method in this image.

关键词： wind vector retrieval ASAR dual polarization.

Relationship between surface subsidence factor and mining depth of strip pillar mining

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中国有色金属学会会刊：英文版 2011年第S3期21卷 594-598页

作者： GUO Wen-bing1, 2. HOU Quan-lin 1, ZOU You-feng2.1. College of Earth {2., Graduate University of chinese academy of sciences, Beijing 100049, {2. 2. School of Energy {2. and Engineering, Henan Polytechnic University, Jiaozuo 454000, {2. chinese Acad Sci Coll Earth Sci Grad Univ Beijing 100049 Peoples R China Henan Polytech Univ Sch Energy Sci & Engn Jiaozuo 454000 Peoples R China

Strip pillar mining is one of the most important technical measures to control mining subsidence in china. Mining depth is one of the most important factors that can affect the mining subsidence in strip pillar mining. Six numerical simulation models were set up to simulate the surface subsidence of strip pillar mining in different mining depths. The mining depth in these six models ranges from 300 to 800 m. The simulated results were compared and analyzed. The formula was established based on the simulated results. It demonstrated that the subsidence of strip pillar mining method is related to mining depth. While the other conditions are the same, the subsidence of strip pillar mining increases with the increase of mining depth by logarithmic relationship.

关键词： subsidence factor strip pillar mining mining depth numerical simulation