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白菜型油菜BrBBX家族的鉴定与BrBBX46和BrBBX53基因的胁迫响应分析

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寒旱农业科学 2024年第1期3卷 26-36页

作者：皮博艺聂治杜文平余桂容甘雨宋军四川省农业科学院生物技术核技术研究所四川成都610066

BBX是一类重要的锌指蛋白转录因子家族,包含1~2个高度保守位于蛋白质序列N端的BBX结构域,在调控植物的生长发育和响应环境胁迫中发挥着重要作用。利用生物信息学分析手段,在白菜型油菜中鉴定出59个Br BBX家族成员,对它们的染色体定位、... 详细信息

BBX是一类重要的锌指蛋白转录因子家族,包含1~2个高度保守位于蛋白质序列N端的BBX结构域,在调控植物的生长发育和响应环境胁迫中发挥着重要作用。利用生物信息学分析手段,在白菜型油菜中鉴定出59个Br BBX家族成员,对它们的染色体定位、基因结构、蛋白保守结构域,以及BrBBX46和BrBBX53基因的启动子进行了分析,并用qRT-PCR技术鉴定了BrBBX46和BrBBX53基因在模拟干旱和盐胁迫下的表达水平。结果显示,59个BrBBXs不均匀地分布于白菜型油菜基因组的10条染色体。通过对系统进化、基因结构、蛋白保守结构域的分析,59个BrBBXs被分为5个亚族,每个亚族的基因结构、蛋白结构域和保守基序均相对保守,同一亚族的成员具有相似的基因结构和保守结构域。对启动子的分析结果显示,BrBBX46和BrBBX53基因的启动子中均含有大量的胁迫相关响应元件,尤其是干旱胁迫响应元件,二者均有14个;在40%PEG和120mmol/L NaCl处理下,二者的表达水平均显著上升,说明BrBBX46和BrBBX53基因能够响应干旱和盐胁迫的诱导,可能在干旱和盐胁迫下发挥着重要功能。以上结果为进一步了解和利用BrBBX家族成员改良白菜型油菜耐旱耐盐新品种提供了良好的基因资源。

关键词：白菜型油菜 BBX家族 BrBBX46 BrBBX53 生物信息学胁迫响应

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Association between endothelial nitric oxide synthase(ENOS) G894T polymorphism and high altitude(HA) adaptation： a meta-analysis

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中国应用生理学杂志 2015年第6期31卷 517-523页

作者： Hong-xiang LU yu-xiao WANG yu CHEN Yong-jun LUO Department of Military Medical Geography College of High Altitude Military Medicine the Third Military Medical University Chongqing 400038 China Battalion 5 of Cadet Brigade the Third Military Medical University Chongqing 400038 China Key Laboratory of High Altitude Medicine (Ministry of Education) the Third Military Medical University Chongqing 400038 China

Objective: Highland natives adapt well to the hypoxic environment at high altitude(HA). Several genes have been reported to be linked to HA adaptation. Previous studies showed that the endothelial nitric oxide synthase(ENOS) G894 T polymorphism contributed to the physiology and pathophysiology of humans at HA by regulating the production of NO. In this meta-analysis, we evaluate the association between the ENOS G894 T polymorphism and HA adaptation through analyzing the published data. Methods: We searched all relevant literature about the ENOS G894 T polymorphism and HA adaptation in Pub Med, Medline, and Embase before Step 2015. A random-effects model was applied(Revman 5.0), and study quality was assessed in duplicate. Six studies with 634 HA native cases and 621 low-altitude controls were included in this meta-analysis. Results: From the results, we observed that the wild-type allele G was significantly overrepresented in the HA groups(OR=1.85; 95% CI, 1.47–2.33; P<0.0001). In addition, the GG genotype was significantly associated with HA adaptation(OR=1.99; 95% CI, 1.54–2.57; P<0.0001). Conclusion: Our results showed that in 894 G allele carriers, the GG genotype might be a beneficial factor for HA adaptation through enhancing the level of NO. However, more studies were needed to confirm our findings due to the limited sample size.

关键词：内皮型一氧化氮合酶 eNOS 多态性 HA 高海拔高原低氧环境 MEDLINE 病理生理学

SE-Chain:A Scalable Storage and Efficient Retrieval Model for Blockchain

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Journal of Computer Science & Technology 2021年第3期36卷 693-706页

作者： Da-yu Jia Jun-Chang Xin zhi-Qiong Wang Han Lei Guo-Ren Wang School of Computer Science and Engineering Northeastern UniversityShenyang 110819China Key Laboratory of Big Data Management and Analytics of Liaoning Province Shenyang 110819China College of Medicine and Biological Information Engineering Northeastern UniversityShenyang 110169China Neusoft Institute of Intelligent Healthcare Technology Co.Ltd. Shenyang 110179China School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore School of Computer Science and Technology Beijing Institute of TechnologyBeijing 100081China

Massive data is written to blockchain systems for the destination of keeping safe. However, existing blockchain protocols still demand that each full node has to contain the entire chain. Most nodes quit because they are unable to grow their storage space with the size of data. As the number of nodes decreases, the security of blockchains would significantly reduce. We present SE-Chain, a novel scale-out blockchain model that improves storage scalability under the premise of ensuring safety and achieves efficient retrieval. The SE-Chain consists of three parts:the data layer, the processing layer and the storage layer. In the data layer, each transaction is stored in the AB-M tree (Adaptive Balanced Merkle tree), which adaptively combines the advantages of balanced binary tree (quick retrieval) and Merkle tree (quick verification). In the processing layer, the full nodes store the part of the complete chain selected by the duplicate ratio regulation algorithm. Meanwhile, the node reliability verification method is used for increasing the stability of full nodes and reducing the risk of imperfect data recovering caused by the reduction of duplicate number in the storage layer. The experimental results on real datasets show that the query time of SE-Chain based on the AB-M tree is reduced by 17% when 16 nodes exist. Overall, SE-Chain improves the storage scalability extremely and implements efficient querying of transactions.

关键词： SE-Chain AB-M(adaptive balanced Merkle)tree efficient retrieval scale-out blockchain

High-order harmonic generation of ZnO crystals in chirped and static electric fields

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Chinese Physics B 2024年第1期33卷 335-343页

作者：张玲玉何永林谢卓璇高芳艳徐清芸葛鑫磊罗香怡郭静 Institute of Atomic and Molecular Physics Jilin UniversityChangchun 130012China School of Physics and Electromechanical Engineering Hexi UniversityZhangye 734000China Institute of Theoretical Physics Hexi UniversityZhangye 734000China College of Physical Science and Technology Bohai UniversityJinzhou 121013China College of Physics and Electronic Information Baicheng Normal UniversityBaicheng 137000China

High harmonic generation in ZnO crystals under chirped single-color field and static electric field are investigated by solving the semiconductor Bloch equation(SBE). It is found that when the chirp pulse is introduced, the interference structure becomes obvious while the harmonic cutoff is not extended. Furthermore, the harmonic efficiency is improved when the static electric field is included. These phenomena are demonstrated by the classical recollision model in real space affected by the waveform of laser field and inversion symmetry. Specifically, the electron motion in k-space shows that the change of waveform and the destruction of the symmetry of the laser field lead to the incomplete X-structure of the crystal-momentum-resolved(k-resolved) inter-band harmonic spectrum. Furthermore, a pre-acceleration process in the solid four-step model is confirmed.

关键词： high-order harmonic generation the semiconductor Bloch equation k-resolved inter-band harmonic spectrum four-step semiclassical model

“日本模式”对会计信息国际可比性的影响及其对我国的启示

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湖南财政经济学院学报 2024年第1期40卷 46-55页

作者：阳敏彭玉洁杨盛杨芷若湖南财政经济学院会计学院湖南长沙410205 湖南财政经济学院厚生国际教育学院湖南长沙410205

虽然在日本模式下还有日本公认会计准则(J-GAAP)、美国公认会计准则(US-GAAP)或日本修订的国际准则(JMIS)等其他选择,但越来越多的日本公司已经采用或计划采用IFRS。在总结日本模式形成过程的基础上,以日本东京证券交易所的新增自愿采用... 详细信息

虽然在日本模式下还有日本公认会计准则(J-GAAP)、美国公认会计准则(US-GAAP)或日本修订的国际准则(JMIS)等其他选择,但越来越多的日本公司已经采用或计划采用IFRS。在总结日本模式形成过程的基础上,以日本东京证券交易所的新增自愿采用IFRS上市公司为研究对象,发现新增自愿采用IFRS公司的会计信息国际可比性会显著提升。进一步研究发现,自愿采用IFRS的公司通过提升会计信息的国际可比性,促进了企业海外业务的显著拓展,会计信息国际可比性起到了重要的中介作用。

关键词：日本模式会计信息国际可比性自愿采用

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Plasmon-driven reaction controlled by the number of graphene layers and localized surface plasmon distribution during optical excitation

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Light(Science & Applications) 2015年第1期4卷 137-143页

作者： zhi-gao Dai xiang-heng Xiao Wei Wu yu-peng Zhang Lei Liao Shi-shang Guo Jian-jian Ying Chong-xin Shan Meng-tao Sun Chang-zhong Jiang Department of Physics and Key Laboratory of Artificial Micro-and Nano-structures of the Ministry of Education Hubei Nuclear Solid Physics Key LaboratoryWuhan UniversityWuhan 430072China Laboratory of Functional Nanomaterials and Printed Electronics School of Printing and PackagingWuhan UniversityWuhan 430072China State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China School of Physical Engineering Zhengzhou UniversityZhengzhou 450052China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

Graphene-plasmonic hybrid platforms have attracted an enormous amount of interest in surface-enhanced Raman scattering(SERS);however,the mechanism of employing graphene is still ambiguous,so clarification about the complex interaction among molecules,graphene,and plasmon processes is urgently *** report that the number of graphene layers controlled the plasmon-driven,surface-catalyzed reaction that converts para-aminothiophenol(PATP)-to-p,p'-dimercaptoazobenzene(DMAB)on chemically inert,graphene-coated,silver bowtie nanoantenna *** catalytic reaction was monitored by SERS,which revealed that the catalytic reaction occurred on the chemical inertness monolayer graphene(1G)-coated silver *** introduction of 1G enhances the plasmon-driven surface-catalyzed reaction of the conversion of PATP-to-p,p'-*** chemical reaction is suppressed by bilayer *** the process of the catalytic reaction,the electron transfer from the PATP molecule to 1G-coated silver ***,the transferred electrons on the graphene recombine with the hot-hole produced by the localized surface plasmon resonance of silver ***,a couple of PATP molecules lost electrons are catalyzed into the p,p'-DMAB molecule on the graphene *** experimental results were further supported by the finite-difference time-domain method and quantum chemical calculations.

关键词： graphene graphene-mediated SERS plasmon-driven reaction SERS

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老年人社会网络类型与主观幸福感相关性研究

中国健康教育 2024年第6期40卷 518-524页

作者：杨诗彤王玉洁蒋俊佳许吉祥高俊岭复旦大学公共卫生学院上海200032 国家老年疾病临床医学研究中心协同创新合作单位上海200032 上海市老年疾病临床医学研究中心核心单位上海200032

目的分析老年人的社会网络特征,探讨老年人社会网络类型与主观幸福感之间的关系。方法在浙江、四川、吉林、湖南四地采用二阶段抽样,对老年人的社会人口学资料、主观幸福感、健康状况、社会联系等情况进行问卷调查。采用二阶聚类法将老... 详细信息

目的分析老年人的社会网络特征,探讨老年人社会网络类型与主观幸福感之间的关系。方法在浙江、四川、吉林、湖南四地采用二阶段抽样,对老年人的社会人口学资料、主观幸福感、健康状况、社会联系等情况进行问卷调查。采用二阶聚类法将老年人的社会网络分为不同类型。采用Kruskal-Wallis检验和广义线性模型分析社会网络类型与主观幸福感之间的关联。结果调查地区老年人的社会网络类型以家庭型(37.0%)为主。不同年龄、性别、文化程度和月收入情况的老年人的社会网络类型不同;不同年龄、性别、文化程度、月收入、自评健康、衰弱程度、心理健康、抑郁、认知障碍、社会网络类型的老年人幸福感得分不同,工作人员型老年人幸福感低于其他所有类型,多元型和家庭型老年人幸福感高于其他所有类型,差异均有统计学意义(P<0.05)。广义线性模型显示,控制了年龄、性别、文化程度、月收入、自评健康、衰弱程度、心理健康及抑郁因素后,与家庭型社会网络的老年人相比,多元型(B=1.082,P=0.014)老年人的主观幸福感更高,工作人员型(B=-3.961,P<0.001)和子女型(B=-1.141,P=0.005)老年人的主观幸福感更低。结论调查地区老年人的社会网络以配偶和子女为中心,可以通过鼓励老年人多结交朋友、多与亲属交流等方式优化老年人的社会网络结构,从而提高老年人的主观幸福感。

关键词：老年人社会网络主观幸福感

Potential geographical distribution of Rhagoletis pomonella （Diptera： Tephritidae）in China

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Insect Science 2011年第5期18卷 575-582页

作者： Jian Geng zhi-Hong Li Edwin G. Rajotte Fang-Hao Wan Xiao-yu Lu zhi-Ling Wang Department of Entomology College of Agronomy and Biotechnology China Agricultural University Beijing Gaoming Entry-Exit Inspection and Quarantine Bureau Foshan Guangdong Province China College of Agricultural Sciences The Pennsylvania State University State College Pennsylvania USA Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing Beijing Academy of Agriculture and Forestry Sciences Beijing China

Apple maggot fly, Rhagoletis pomonella （Walsh） is a major pest causing considerable economic losses of fruits in North America. During the development of international trade, apple maggot fly has become a threat to Chinese agriculture. In this study, CLIMEX and ArcGIS were used to predict the potential geographical distribution of apple maggot fly in China. The parameters used in CLIMEX for apple maggot fly were derived from ecological data and the present geographical distribution of apple maggot fly in North America. Then the potential distribution map in China was presented based on the adjusted values of these parameters. The results showed that apple maggot fly has a wide potential distribution area in China; 47.5% of 748 meteorological stations presented high or medium suitability of pest establishment. These high suitable stations are mainly located in northeast, southwest and northwest of China, such as Liaoning, Shandong, Gansu and Shaanxi Provinces. These areas are also the central regions of apple, pear and peach production in China. Two hundred and twenty-five stations （30.1%） in westem and southern China, such as Tibet, Qinghai, Guangdong, Guangxi, Hainan and Taiwan, were unsuitable for establishment of apple maggot fly populations. In order to prevent the introduction of apple maggot fly in China, the present plant quarantine measures should be enhanced, especially in the areas with high suitability for the presence of apple maggot fly.

关键词： apple maggot fly ArcGIS CLIMEX potential geographical distribution Rhagoletis pomonella (Walsh)

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非线性结构系统的局部连接刚度辨识方法研究

振动工程学报 2024年第10期37卷 1698-1706页

作者：任彦松马志赛李亚南于佳晖张忠丁千天津大学机械工程学院天津300350 天津市非线性动力学与控制重点实验室天津300350 北京强度环境研究所北京100076

连接结构在工程应用领域广泛存在,连接位置处的局部非线性特征对结构系统的动力学建模与特性预示具有重要影响。针对非线性结构系统局部连接参数未知或难以测量的问题,本文从结构动力学反问题的角度出发,提出一种基于频响函数变换的局... 详细信息

连接结构在工程应用领域广泛存在,连接位置处的局部非线性特征对结构系统的动力学建模与特性预示具有重要影响。针对非线性结构系统局部连接参数未知或难以测量的问题,本文从结构动力学反问题的角度出发,提出一种基于频响函数变换的局部线性连接刚度辨识方法,通过与时域非线性子空间辨识方法相结合,可进一步获取非线性结构系统的局部线性和非线性连接刚度。设计并搭建三自由度结构系统的数值算例和实验系统,开展辨识方法的数值和实验验证,结果表明,所提方法能够分离并辨识得到非线性结构系统的标称线性系统频响函数和非线性参数,进而实现局部线性和非线性连接刚度的联合辨识。

关键词：连接刚度辨识连接结构非线性系统非线性子空间辨识方法

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