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Differences in pseudogene evolution contributed to the contrasting flavors of turnip and Chiifu, two Brassica rapa subspecies

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Plant Communications 2023年第1期4卷 120-135页

作者： xin yin Danni Yang Youjie Zhao xingyu Yang Zhili Zhou Xudong Sun Xiangxiang Kong Xiong Li Guangyan Wang Yuanwen Duan Yunqiang Yang Yongping Yang Plant Germplasm and Genomics Center Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650204China Institute of Tibetan Plateau Research at Kunming Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China College of Big Data and Intelligent Engineering Southwest Forestry UniversityKunmingYunnanChina University of Chinese Academy of Sciences Beijing 100049China

Pseudogenes are important resources for investigation of genome evolution and genomic diversity because they are nonfunctional but have regulatory effects that influence plant adaptation and ***,few systematic comparative analyses of pseudogenes in closely related species have been ***,we present a turnip(Brassica rapa ***)genome sequence and characterize pseudogenes among diploid Brassica species/*** results revealed that the number of pseudogenes was greatest in Brassica oleracea(CC genome),followed by ***(AA genome)and then Brassica nigra(BB genome),implying that pseudogene differences emerged after species *** Brassica AA genomes,pseudogenes were distributed asymmetrically on chromosomes because of numerous chromosomal insertions/rearrangements,which contributed to the diversity among *** differences among subspecies were reflected in the flavor-related glucosinolate(GSL)***,turnip had the highest content of pungent substances,probably because of expansion of the methylthioalkylmalate synthase-encoding gene family in turnips;these genes were converted into pseudogenes in *** ***(Chiifu).RNA interference-based silencing of the gene encoding 2-oxoglutarate-dependent dioxygenase 2,which is also associated with flavor and anticancer substances in the GSL pathway,resulted in increased abundance of anticancer compounds and decreased pungency of turnip and *** findings revealed that pseudogene differences between turnip and Chiifu influenced the evolution of flavor-associated GSL metabolism-related genes,ultimately resulting in the different flavors of turnip and Chiifu.

关键词： turnip genome comparative genomics pseudogene evolution GSL biosynthesis flavor

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Chiral Pair Density Waves with Residual Fermi Arcs in RbV_(3)Sb_(5)

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Chinese Physics Letters 2024年第9期41卷 88-92页

作者： Xiao-Yu Yan Hanbin Deng Tianyu Yang Guowei Liu Wei Song Hu Miao Zhijun Tu Hechang Lei Shuo Wang Ben-Chuan Lin Hailang Qin Jia-xin yin Department of Physics Southern University of Science and TechnologyShenzhen 518055China Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTennessee 37831USA Beijing Key Laboratory of Optoelectronic Functional Materials MicroNano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education) Renmin University of ChinaBeijing 100872China Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Guangdong Provincial Key Laboratory of Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area Shenzhen 518055China

The chiral 2×2 charge order has been reported and confirmed in the kagome superconductor RbV_(3)Sb_(5),while its interplay with superconductivity remains elusive owing to its lowest superconducting transition temperature Tc of about 0.85K in the AV_(3)Sb_(5) family(A=K,Rb,Cs)that severely challenges electronic spectroscopic ***,utilizing dilution-refrigerator-based scanning tunneling microscopy down to 30 mK,we observe chiral 2×2 pair density waves with residual Fermi arcs in RbV_(3)Sb_(5).We find a superconducting gap of 150 μeV with substantial residual in-gap *** spatial distribution of this gap exhibits chiral 2×2 modulations,signaling a chiral pair density wave(PDW).Our quasi-particle interference imaging of the zero-energy residual states further reveals arc-like *** discuss the relation of the gap modulations with the residual Fermi arcs under the space-momentum correspondence between PDW and Bogoliubov Fermi states.

关键词： Fermi chiral utilizing

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Continued antigenic variation of highly pathogenic avian influenza A(H7N9)virus in laying hens in China,2020–2021

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Virologica Sinica 2022年第4期37卷 631-633页

作者： Wenming Jiang xin yin Shuo Liu Shaobo Liang Cheng Peng Guangyu Hou Jinping Li Xiaohui Yu Yang Li Jingjing Wang Hualei Liu China Animal Health and Epidemiology Center Qingdao266032China

Dear Editor,Since it first appeared in humans in China in 2013,a novel H7N9influenza virus has caused 1,568 cases of infection,with a mortality rate of 39.2%(yin et al.,2021).The early H7N9 virus strains had low pathogenicity and did not cause avian disease(Zhang et al.,2013).However,they caused concern about poultry consumption and caused huge economic losses to the poultry *** mid-2016,some H7N9 viruses mutated.

关键词： H7N9 influenza

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中国特色档案学学科建设成果与发展路径探析

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档案学研究 2022年第6期 32-39页

作者：尹鑫中国人民大学信息资源管理学院北京100872 中国人民大学电子文件管理研究中心北京100872

中国特色档案学学科建设经历了艰辛而光荣的发展历程,具有良好的建设机遇和广阔的发展前途。新中国成立以来,中国特色档案学学科在人才培养、科学研究、文化传承、社会服务、国际交流合作、师资队伍建设等方面取得了较为显著的建设成果... 详细信息

中国特色档案学学科建设经历了艰辛而光荣的发展历程,具有良好的建设机遇和广阔的发展前途。新中国成立以来,中国特色档案学学科在人才培养、科学研究、文化传承、社会服务、国际交流合作、师资队伍建设等方面取得了较为显著的建设成果。在中国特色哲学社会科学“三大体系”建设背景下,中国特色档案学学科建设不仅是构建学术体系的坚实基础,也是构建话语体系的基本内核。新时代中国特色档案学学科的未来发展,需要面向新时代党的建设和国家发展重大需求突出档案学学科在密切配合党和国家中心工作、真实记录与持续传承中国历史文明、切实服务人民群众生产生活等方面的学科优势,直面中国档案学学科建设中出现的新老问题,补齐档案学学科短板,按照“中国特色”“世界一流”学科建设标准完善档案学学科建设,面向新文科建设背景下学科交叉融合发展新趋势拓展档案学学科领域。

关键词：档案学学科体系建设成果学科发展

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Prognostic factors in non-malignant and non-cirrhotic patients with portal cavernoma: An 8-year retrospective single-center study

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World Journal of Gastroenterology 2013年第42期19卷 7447-7454页

作者： xing-Shun Qi Ming Bai Chuang-Ye He Zhan-xin yin Wen-Gang Guo Jing Niu Fei-Fei Wu Guo-Hong Han Department of Liver Diseases and Digestive Interventional Radiology Xijing Hospital of Digestive DiseasesFourth Military Medical University

AIM:To evaluate the outcome of non-malignant and non-cirrhotic patients with portal cavernoma and to determine the predictors for ***:Between July 2002 and June 2010,we retrospectively enrolled all consecutive patients admitted to our department with a diagnosis of portal cavernoma without abdominal malignancy or liver *** primary endpoint of this observational study was death and cause of *** predictors of survival were identified using the Cox regression ***:A total of 64 patients were enrolled in the *** a mean follow-up period of 18±2.41mo,7 patients *** of death were pulmonary embolism(n=1),acute leukemia(n=1),massive esophageal variceal hemorrhage(n=1),progressive liver failure(n=2),severe systemic infection secondary to multiple liver abscesses(n=1)and accident(n=1).The cumulative 6-,12-and 36-mo survival rates were 94.9%,86%and 86%,*** Cox regression analysis demonstrated that the presence of ascites(HR=10.729,95%CI:1.209-95.183,P=0.033)and elevated white blood cell count(HR=1.072,95%CI:1.014-1.133,P=0.015)were independent prognostic factors of non-malignant and non-cirrhotic patients with portal *** cumulative 6-,12-and 36-mo survival rates were significantly different between patients with and without ascites(90%,61.5%and 61.5%vs 97.3%,97.3%and 97.3%,respectively,P=0.0008).CONCLUSION:The presence of ascites and elevated white blood cell count were significantly associated with poor prognosis in non-malignant and non-cirrhotic patients with portal cavernoma.

关键词： Extrahepatic portal vein obstruction Portal cavernoma Survival Prognostic factors Ascites

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论生态损害的侵权责任法救济机制

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河南师范大学学报（哲学社会科学版） 2016年第5期43卷 54-59页

作者：殷鑫郑州大学法学院河南郑州450001

环境法的主要功能是预防损害,但却不具备赔偿损害的功能。侵权责任法以填补损害为首要功能,同时具备预防损害的功能。如今大部分构建了生态损害责任立法的国家,均将生态损害责任认定为侵权责任,依据侵权责任法对生态损害责任进行认定与... 详细信息

环境法的主要功能是预防损害,但却不具备赔偿损害的功能。侵权责任法以填补损害为首要功能,同时具备预防损害的功能。如今大部分构建了生态损害责任立法的国家,均将生态损害责任认定为侵权责任,依据侵权责任法对生态损害责任进行认定与归责。鉴于我国还未制定专门的生态损害赔偿责任法,现实中发生的生态损害事件,应适用侵权责任法对侵害人进行归责。由于生态损害损害赔偿数额非常高昂,很可能超出责任人的财产范围,为了实现对受损生态的充分填补,应适用个人责任与社会化责任相结合的综合填补机制,对受损生态进行恢复与补救。为了实现责任的公平分担,还应设定合理的社会化责任范围与责任分配机制。

关键词：生态损害侵权责任法救济机制

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Passive source localization using importance sampling based on TOA and FOA measurements

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Frontiers of Information Technology & Electronic Engineering 2017年第8期18卷 1167-1179页

作者： Rui-rui LIU Yun-long WANG Jie-xin yin Ding WANG ying WU National Digital Switching System Engineering & Technology Research Center Zhengzhou 450001 China

Passive source localization via a maximum likelihood （ML） estimator can achieve a high accuracy but involves high calculation burdens, especially when based on time-of-arrival and frequency-of-arrival measurements for its internal nonlinearity and nonconvex nature. In this paper, we use the Pincus theorem and Monte Carlo importance sampling （MCIS） to achieve an approximate global solution to the ML problem in a computationally efficient manner. The main contribution is that we construct a probability density function （PDF） of Gaussian distribution, which is called an important function for efficient sampling, to approximate the ML estimation related to complicated distributions. The improved performance of the proposed method is at- tributed to the optimal selection of the important function and also the guaranteed convergence to a global maximum. This process greatly reduces the amount of calculation, but an initial solution estimation is required resulting from Taylor series expansion. However, the MCIS method is robust to this prior knowledge for point sampling and correction of importance weights. Simulation results show that the proposed method can achieve the Cram6r-Rao lower bound at a moderate Gaussian noise level and outper- forms the existing methods.

关键词： Passive source localization Time of arrival (TOA) Frequency of arrival (FOA) Monte Carlo importance sampling(MCIS) Maximum likelihood (ML)

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铁基氟化物超导体SrFe_(1-x)Co_xAsF(x=0,0.125)声子特性的第一性原理计算研究

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物理学报 2014年第9期63卷 313-319页

作者：王玮尹新国淮北师范大学物理与电子信息学院淮北235000

采用基于第一性原理的平面波赝势方法,计算了铁基氟化物及其钴掺杂超导体SrFe1-xCoxAsF(x=0,0.125)在四方非磁态与正交条纹反铁磁态下的声子谱(声子色散曲线、声子态密度)及电-声子耦合常数.计算发现:条纹反铁磁相互作用下的自旋-声子... 详细信息

采用基于第一性原理的平面波赝势方法,计算了铁基氟化物及其钴掺杂超导体SrFe1-xCoxAsF(x=0,0.125)在四方非磁态与正交条纹反铁磁态下的声子谱(声子色散曲线、声子态密度)及电-声子耦合常数.计算发现:条纹反铁磁相互作用下的自旋-声子耦合效应强于电-声子耦合作用使声子谱的宽度减小;自旋效应使声子的有效质量增加导致条纹反铁磁态下Fe原子与As原子的耦合振动频率减小.另外,掺杂和自旋效应是提高电-声子耦合常数的两个有效方法,但计算所得超导转变温度远小于实验测量值,表明铁基超导电性非简单的电-声子耦合配对机理.

关键词：铁基氟化物声子特性电-声子耦合超导电性

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动态迁移和椒盐变异融合生物地理学优化算法的高维多阈值分割

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光学精密工程 2015年第10期23卷 2943-2951页

作者：张新明尹欣欣涂强河南师范大学计算机与信息工程学院河南新乡453007 河南省高校计算智能与数据挖掘工程技术研究中心河南新乡453007

针对高维多阈值图像分割中存在的多阈值搜索问题,提出了一种动态迁移和椒盐变异融合的生物地理学优化算法(BBOD)。首先,构建了一种基于动态扰动的迁移算子,对候选解中没有发生迁移操作的特征值添加一个动态的扰动因子,使种群的多样性增... 详细信息

针对高维多阈值图像分割中存在的多阈值搜索问题,提出了一种动态迁移和椒盐变异融合的生物地理学优化算法(BBOD)。首先,构建了一种基于动态扰动的迁移算子,对候选解中没有发生迁移操作的特征值添加一个动态的扰动因子,使种群的多样性增加,从而提高全局搜索能力;然后,创建了新型的变异算子,对待变异的特征值产生一个椒盐扰动,使该值在小范围内浮动,以便提高局部搜索能力和算法的收敛速度;最后,将该算法应用到基于最小交叉熵的图像高维多阈值分割中。高维多阈值分割实验结果表明,本文提出的BBOD算法能够获得最优的阈值向量,运行速度、性能指标均优于标准的生物地理学优化(BBO)算法,基于变异的生物地理学优化(BBOM)算法、FFA(Firefly Algorithm)和CSA(Cuckoo Search Algorithm),运行速度是FFA的5倍以上。该算法更适用于基于最小交叉熵的高维多阈值优化选择。

关键词：图像分割多阈值分割优化算法生物地理学优化算法最小交叉熵

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SECURE ELECTRONIC VOTING USING PUBLICLY VERIFIABLE SECRET SHARING SCHEME

SECURE ELECTRONIC VOTING USING PUBLICLY VERIFIABLE SECRET SH...

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2005中国宁波国际计算机科学与技术学术大会

作者： Chun-lai Song xin-chun yin Institute of Information Technology Yangzhou University

A robust and secure electronic voting scheme is proposed by using Publicly Verifiable Secret Sharing and Proof of knowledge of Common *** the emphasis is put on the discussion how to resist outsider attack and insider attack in Internet complex network *** scheme can solve such problems as"vote lost","vote delay"and"dishonest counter"etc.

关键词： Electronic voting Publicly verifiable secret sharing Proof of knowledge common exponent

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