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Field identification of morphological and physiological traits in two special mutants with strong tolerance and high sensitivity to drought stress in upland rice(Oryza sativa L.)

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Journal of Integrative Agriculture 2019年第5期18卷 970-981页

作者： HUANG Min xu yu-hui WANG Hua-qi College of Agronomy and Biotechnology China Agricultural University

The two mutants idr1-1 and 297-28, which were obtained from the radiation mutation of HD297 and IAPAR9, were used as experimental materials in this study for a 2-year(2012 and 2013) experiment about field drought resistance identification in Beijing, China. Key agronomic traits and water-related physiological indexes were observed and measured, including the leaf anti-dead level(LADL), days to heading, plant height, setting percentage, aboveground biomass, leaf water potential(LWP), net photosynthetic rate(Pn) and transpiration rate. The results showed that the mutant idr1-1 that was under drought stress(DS) conditions for 2 years had the highest LADL grades(1.3 and 2.0) among all the materials, and they were 2–3 grades stronger than the wild-type IAPAR9 with an average that was 21.4% higher for the setting percentage than the wild type. Compared with the IAPAR9 for the 2-year average delay in the days to heading and the reduction rates in the plant height, setting percentage, and aboveground biomass under DS compared with the well-watered(WW) treatment, idr1-1 showed 3.2% less delay and 19.1, 16.4, and 6.1% less reduction, respectively. The idr1-1 in the LWP always exhibited the highest performance among all the materials. The Pn of idr1-1 under severe and mild DS comparing with that under WW was slightly decreased and even slightly increased, respectively, leading to an average reduction rate of only 0.92%, which was 26.93% less than that of IAPAR9. Under the severe DS, idr1-1 still showed the highest value of 16.88 μmol CO2 m–2 s–1 among all the materials and was significantly higher than that of IAPAR9(11.66 μmol CO2 m–2 s–1). Furthermore, only idr1-1 had the increased and the highest transpiration rate values(7.6 and 6.04 mmol H2 O m–2 s–1) under both mild and severe DS compared with the values under WW, when the transpiration rate of all the other materials significantly decreased. By contrast, the 297-28 in terms of the LADL grade under DS was the lowest(7.0)

关键词： rice mutants morphological and physiological traits drought resistance field identification

Syntheses and Structures of Uwo New Oxalate-bridged Transition-metal Supramolecular Polymers of [M(2-NH_2py)_2(ox)]

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Chemical Research in Chinese Universities 2007年第6期23卷 631-634页

作者： ZHANG Xiao YI Zhi-hui xuE Ming xu Yan yu Jie-hui yu Xiao-yang xu Ji-qing College of Chemistry State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun 130021 P. R. China

Two new supramoleeular polymers [ M （2-NH2 py）2 （ox） ] [ M = Co （1）, Ni （2） ; 2-NH2py = 2-aminopyridine; ox = oxalate ] were hydrothermally synthesized and characterized by elemental analyses, IR and single-crystal X-ray diffraction analyses. The isomorphic compounds 1 and 2 both possess one-dimensional zigzag chain structures, which are composed of [ M （2-NH2 py）2 ]^2＋ units bridged by tetradentate oxalate ligands to form three-dimensional supramolecular network v/a the C-H…O hydrogen bonds and π-π stacking interactions. Compound 1 displays antiferromagnetie interaction.

关键词： Crystal structure Oxalate ligand Coordination polymer Supramolecular interaction

Influence of Boron Content in Iron Oxide on Performance of Mn-Zn Ferrites

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Journal of Iron and Steel Research International 2010年第2期17卷 59-62页

作者： yu Cheng-feng LI yu-guang xu hui-yu GAO Jin-sheng College of Resource and Environmental Engineering East China University of Science and Technology Shanghai 200237 China Technology and Quanlity Management Department Baoshan Iron and Steel Co Ltd Shanghai 201900 China Shanghai Baosteel Tiantong Magneitic Materials Co Ltd Shanghai 201900 China

The ferrites of PC30 （Mn-Zn ferrites） were prepared by using a dry processing route. The effect of Mn-Zn ferrites doped with H3BO3 was investigated on the basis of microstructure analysis. The results of the samples doped with H3BO3 less than 5 × 10^-5 showed that the doping had no significant effect on power loss, initial permeability, fine grain microstructure, and density of Mn-Zn ferrites. With the further increase in H3BO3 doping （up to 1 × 10 ^-4 ）, the microstructure of Mn-Zn ferrites is in the critical state between fine grain and ＂sandwich＂, and the initial permeability and density of Mn-Zn ferrites begin falling quickly; the increased H3BO3 doping also results in deteriorated power loss properties. Thus, the control of the boron content in iron oxide is of utmost importance for the quality of Mn-Zn ferrites in producing process.

关键词： iron oxide Mn-Zn ferrite boron content initial permeability

Association of the frequency of peripheral natural killer T cells with nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2007年第33期13卷 4504-4508页

作者： Cheng-Fu xu Chao-hui yu You-Ming Li Lei xu Juan Du Zhe Shen Department of Gastroenterology The First Affiliated Hospital of Zhejiang University School of Medicine Hangzhou 310003 Zhejiang Province China

AIM: To investigate whether changes in the frequencyof peripheral natural killer T (NKT) cells were correlatedwith liver disease in patients who had metabolicpredispositions to nonalcoholic fatty liver disease(NAFLD).METHODS: Peripheral blood samples were obtainedfrom 60 Chinese NAFLD patients and 60 age and gendermatched healthy controls. The frequency of peripheralNKT cells was detected by flow cytometry. Clinical andlaboratory data were collected for further analysis. RESULTS: NAFLD patients had a lower frequencyof peripheral NKT cells than healthy controls (1.21%± 0.06% vs 1.62% ± 0.07%, P < 0.001). Furtheranalysis revealed that the frequency of peripheralNKT cells was negatively correlated with body massindex, waist circumference and serum levels of alanineaminotransferase. Logistic regression analysis revealedthat elevated body mass index [hazard ratio (HR):2.991], aspartate aminotransferase levels (HR: 1.148)and fasting blood sugar (HR: 3.133) increased the riskof NAFLD, whereas an elevated frequency of peripheralNKT cells (HR: 0.107) decreased the risk. CONCLUSION: Changes in the frequency of peripheralNKT cells were correlated with NAFLD and a decreasedfrequency of peripheral NKT cells was a risk factor forNAFLD.

关键词： Nonalcoholic fatty liver disease Natural killer T cells Flow cytometry Risk factor

Changes of Anti-tuberculosis Herbs Formula during Past Three Decades in Contrast to Ancient Ones

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Chinese Journal of Integrative Medicine 2021年第5期27卷 388-393页

作者： xu yu-hui Dai Guang-ming TANG Shi-huan YANG Hong-jun SUN Zhao-gang Institute of Chinese Materia Medica China Academy of Chinese Medical SciencesBeijing 100700China Translational Medicine Center Beijing Chest HospitalCapital Medical UniversityBeijing 101149China Beijing Key Laboratory in Drug Resistant Tuberculosis Research Beijing Tuberculosis&Thoracic Tumor Research InstituteBeijing 101149China

Objective:To investigate the evolution of herbal medicine in treating tuberculosis(TB)and encourage anti-TB drug discovery and ***:In this study,477 ancient traditional Chinese medicine formulae were collected from the Dictionary of Traditional Chinese Medicine Prescriptions and 172 modern Chinese medicine formulae(from 1986 to 2016)were collected by searching 4 databases:Wan Fang Data Knowledge Service Platform,China National Knowledge Infrastructure Database(CNKI),China Science and Technology Journal Database(VIP)and Chinese Bio-medical Literature and Retrieval System(Sino Med)in *** restricted the search to publications in *** data analysis was done using the Traditional Chinese Medicine Inheritance Support System version 2 ***:There were 425 herbs in the 477 ancient formulae and 257 herbs in the 172 modern *** of the top 30 herbs were shared by both modern and ancient *** are Radix Ophiopogonis,Astragalus membranaceus,Fritillaria cirrhosa,Dried rehmannia glutinosa,Poria cocos,Angelica sinensis,Prepared rehmannia glutinosa,Platycodon Root,Radix paeoniae alba,Schisandra chinensis,Bighead atractylodes rhizome,Rhizoma anemarrhenae,Cortex lycii radicis and Radix *** two groups of herbs with a high correlation coefficient were found in both modern and ancient prescriptions,the Dried rehmannia glutinosa with Radix ophiopogonis,and Radix ophiopogonis with Prepared rehmannia *** were 9 and 15 core herb combinations in modern and ancient prescriptions,respectively,but no one was found simutaniously in both modern and ancient ***:Although there were wide variations in the herb groups and herb combinations in the formulae,half of the top 30 herbs were found in both modern and ancient *** core herb combinations in modern and ancient prescriptions could help us to improve the priscription for treatment of TB.

关键词： herbal formula tuberculosis Chinese materia medica anti-tuberculosis herbs

The optimal management strategy for patients of retinal detachment associated with ciliary body detachment

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The optimal management strategy for patients of retinal deta...

Suppression of bcl-2 Gene by RNA Interference Increases Chemosensitivity to Cisplatin in Nasopharyngeal Carcinoma Cell Line CNE1

第三届全球华人眼科学术大会暨中华医学会第十一届全国眼科学术大会

作者： yu xu-hui Teng Yan 哈尔滨医科大学第一临床医学院眼科医院

Purpose: This is a preliminary report to describe our principle of how to manage the patients of retinal detachment associated with choroidal detachment while just in the stage of ciliary body detachment optimally. Materials and Methods: Twenty -eight patients (twenty-eight eyes) of retinal detachment associated with choroidal detachment while just in the stage of

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Acta Biochimica et Biophysica Sinica 2004年第11期36卷 749-753页

作者： Zhi-Hua YIN, Cai-Ping REN, Feng LI, xu-yu YANG, hui LI, Ming ZHAO, and Kai-Tai YAOCancer Research Institute, Central South University, Changsha 410078, China Cancer Research Institute Central South UniversityChangsha 410078 China

To explore the effect of suppressing BCL-2 expression using RNA interference (RNAi) technique in nasopharyngeal carcinoma cell line CNE1. CNE1 cell lines stably expressing shRNAs targeted bcl-2 and GL3 gene were established and gene expression inhibition was assessed by Western blotting analysis. The effect of suppressing bcl-2 by RNAi on cell growth was studied, the apoptosis induction and the sensitization of CNE1 cells to cisplatin were quantified by MTT assay and flow cytometry. The results showed that: stable transfection of CNE1

关键词： RNA interference nasopharyngeal carcinoma bcl-2 cisplatin

Research on MAS-based cognitive model for mobile commerce secure transaction mechanism

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Research on MAS-based cognitive model for mobile commerce se...

Active learning-based semi-supervised spectral clustering algorithm

2018中国信息通信大会(CICC2018)

作者： JIANG Wei-Jin CHEN Jia-hui xu yu-hui Institute of Big Data and Internet Innovation Mobile E-business Collaborative Innovation Center of Hunan ProvinceHunan University of Commerce School of Computer Science and Technology Wuhan University of Technology

Mobile commerce is suitable for scenes with uncertain location and uncertain *** can get mobile services at any time and at any position while completing any *** transactions are *** biggest feature of mobile applications is the time to ***,the portability,flexibility and privacy of mobile terminals are also more in line with the business needs of the new *** Internet（MI）environment of randomness,fuzziness and uncertainty factors such as unpredictability to network trade brings many security problems,and in on-line transactions of the mobile commerce based on mobile Internet,trust is the premise and key which makes transactions *** measurement of trust between entities involves in trading volume,transaction time,personal income of consumer entity and its risk attitude to trust,and so on,which is difficult to be given accurately quantitative *** find out the nature of the trust relationship,we combine with cognitive theory and methods of social network in real life,mobile commerce in mobile network environment as the research background,by the research on problems in MI,such as trust,influencing factors to trust and trust mechanism,based on multi-Agent system coordination theory,a dynamic trust calculation model based on mobile Agent is *** model can achieve the qualitative and quantitative conversion of *** order to effectively prevent malicious users from the credit hype and deceptive behaviors,a special attribute evaluation method and trust punishment method are *** the existing new user trust value assignment method is improved,we proposed a system on the basis of previous minimum trust,dynamic set the method of the new user’s initial trust,effectively resist to the arbitrary abandonment of reputation *** the trading mechanism of the introduction of evaluation system and weight system,the model better reflects the subjective factors such as individual preference,r

关键词： Mobil Internet Mobil commerce Dynamic trust model Reputation Management Mobil agent system(MAS) Online Transaction Security

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Active learning-based semi-supervised spectral clustering al...