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Prevalence and methodologies for detection,characterization and subtyping of Listeria monocytogenes and *** in foods and environmental sources

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Food Science and Human Wellness 2017年第3期6卷 97-120页

作者： jin-qiang chena Patrick Regan Pongpan Laksanalamai Stephanie Healey Zonglin Hua Winchester Engineering Analytical Center(WEAC)HFR-NE460Office of Regulatory AffairsUS Food and Drug Administration109 Holton StreetWinchesterMA 01890USA MD DHMH Laboratories Administration Division of MicrobiologyRoom 5281770 Ashland Ave.BaltimoreMD 21205USA

Listeria monocytogenes,one of the most important foodborne pathogens,can cause listeriosis,a lethal disease for ***,which is closely related to ***,is also widely distributed in nature and infects mainly warm-blooded ruminants,causing economic ***,there are high priority needs for methodologies for rapid,specific,cost-effective and accurate detection,characterization and subtyping of *** and *** in foods and environmental *** this review,we(A)described *** and ***,world-wide incidence of listeriosis,and prevalence of various *** strains in food and environmental sources;(B)comprehensively reviewed different types of traditional and newly developed methodologies,including culture-based,antigen/antibody-based,LOOP-mediated isothermal amplification,matrix-assisted laser desorption ionization-time of flight-mass spectrometry,DNA microarray,and genomic sequencing for detection and characterization of *** in foods and environmental sources;(C)comprehensively summarized different subtyping methodologies,including pulsed-field gel electrophoresis,multi-locus sequence typing,ribotyping,and phage-typing,and whole genomic sequencing *** subtyping of *** strains from food and environmental sources;and(D)described the applications of these methodologies in detection and subtyping of *** in foods and food processing facilities.

关键词： Foodborne pathogens Listeria monocytogenes Listeria ivanovii Molecular characterization Subtyping

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Activin A receptor type 1C single nucleotide polymorphisms associated with esophageal squamous cell carcinoma risk in Chinese population

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 39-51页

作者： Si-Yun Lin Hou Huang jin-Jie Yu Feng Su Tian Jiang Shao-Yuan Zhang Lu Lv Tao Long Hui-Wen Pan Jun-Qing Qi qiang Zhou Wei-Feng Tang Guo-Wen Ding Li-Ming Wang Li-Jie Tan Jun Yin Department of Thoracic Surgery Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Key Laboratory of Clinical Geriatric Medicine Huadong Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Cardiothoracic Surgery The Affiliated People's Hospital of Jiangsu UniversityZhenjiang 212002Jiangsu ProvinceChina Department of Thoracic Surgery Sichuan Cancer Hospital&InstituteChengdu 610042Sichuan ProvinceChina Department of Cardiothoracic Surgery Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing 210000Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine Shanghai Xuhui Central HospitalShanghai 200032China

BACKGROUND Transforming growth factor-β(TGF-β)superfamily plays an important role in tumor progression and *** A receptor type 1C(ACVR1C)is a TGF-βtype I receptor that is involved in tumorigenesis through binding to dif-ferent *** To evaluate the correlation between single nucleotide polymorphisms(SNPs)of ACVR1C and susceptibility to esophageal squamous cell carcinoma(ESCC)in Chinese Han *** In this hospital-based cohort study,1043 ESCC patients and 1143 healthy controls were *** SNPs(rs4664229,rs4556933,rs77886248,rs77263459,rs6734630)of ACVR1C were assessed by the ligation detection reaction ***-Weinberg equilibrium test,genetic model analysis,stratified analysis,linkage disequi-librium test,and haplotype analysis were *** Participants carrying ACVR1C rs4556933 GA mutant had significantly decreased risk of ESCC,and those with rs77886248 TA mutant were related with higher risk,especially in older male *** the haplotype analysis,ACVR1C Trs4664229Ars4556933Trs77886248Crs77263459Ars6734630 increased risk of ESCC,while Trs4664229Grs4556933Trs77886248Crs77263459Ars6734630 was associated with lower susceptibility to *** ACVR1C rs4556933 and rs77886248 SNPs were associated with the susceptibility to ESCC,which could provide a potential target for early diagnosis and treatment of ESCC in Chinese Han population.

关键词： Activin A receptor type 1C Single nucleotide polymorphisms Esophageal squamous cell carcinoma Genetic susceptibility Hospital-based cohort study

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A novel business analytics approach and case study-fuzzy associative classifier based on information gain and rule-covering

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Journal of Management Analytics 2014年第1期1卷 1-19页

作者： Yue Ma Guoqing chena qiang Wei Research Center for Contemporary Management Key Research Institute of Humanities and Social Sciences at Universities School of Economics and Management Tsinghua UniversityBeijing 100084China

Associative classification has attracted remarkable research attention for business analytics in recent years due to its merits in accuracy and *** is deemed meaningful to construct an associative classifier with a compact set of rules(i.e.,compactness),which is easy to understand and use in decision *** paper presents a novel approach to fuzzy associative classification(namely Gain-based Fuzzy Rule-Covering classification,GFRC),which is a fuzzy extension of an effective classifier *** GFRC,two desirable strategies are introduced to enhance the compactness with *** strategy is fuzzy partitioning for data discretization to cope with the‘sharp boundary problem’,in that simulated annealing is incorporated based on the information entropy measure;the other strategy is a data-redundancy resolution coupled with the rulecovering *** experiments show that GFRC had good accuracy,and was significantly advantageous over other classifiers in ***,GFRC is applied to a real-world case for predicting the growth of sellers in an electronic marketplace,illustrating the classification effectiveness with linguistic rules in business decision support.

关键词： associative classification information gain fuzzy partitioning simulated annealing rule-covering

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Hydrocarbon generation from Carboniferous-Permian coaly source rocks in the Huanghua depression under different geological processes

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Petroleum Science 2020年第6期17卷 1540-1555页

作者： jin-Jun Xu qiang jin Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580ShandongChina Pilot National Laboratory for Marine Science and Technology China University of Petroleum(East China)Aoshanwei Wenhai Road 1Qingdao 266237ShandongChina

Natural gas and condensate derived from Carboniferous-Permian(C-P)coaly source rocks discovered in the Dagang Oilfield in the Bohai Bay Basin(east China)have important implications for the potential exploration of C-P coaly source *** study analyzed the secondary,tertiary,and dynamic characteristics of hydrocarbon generation in order to predict the hydrocarbon potentials of different exploration areas in the Dagang *** results indicated that C-P oil and gas were generated from coaly source rocks by secondary or tertiary hydrocarbon generation and characterized by notably different hydrocarbon products and generation *** hydrocarbon generation was completed when the maturity reached vitrinite reflectance(Ro)of 0.7%-0.9%before uplift prior to the *** hydrocarbon generation from the source rocks was limited in deep buried sags in the Oligocene,where the products consisted of light oil and *** activation energies for secondary and tertiary hydrocarbon generation were 260-280 kJ/mol and 300-330 kJ/mol,respectively,indicating that each instance of hydrocarbon generation required higher temperature or deeper burial than the previous *** with secondary or tertiary hydrocarbon generation from C-P coaly source rocks were interpreted as potential oil and gas exploration regions.

关键词： Hydrocarbon generation Thermal simulation Coaly source rocks Carboniferous-Permian Huanghua depression

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Ordered Structures of a Binary Mixture with Mobile Particles System

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Chinese Physics Letters 2003年第5期20卷 703-705页

作者： ZHUYue-jin MAYu-qiang DepartmentofPhysics NingboUniversityNingbo315211 NationalLaboratoryofSolidStateMicrostructures NanjingUniversityNanjing210093

We study the ordered structures of a binary mixture through the introduction of mobile particles under periodically oscillating driving fields, and find that the particle motion can break up the isotropy of the system, so that the continuous structure along the oscillation forcing direction is observed for properly chosen oscillating field. Furthermore, the dependences of the morphology and domain size on the mixture-particle coupling interaction, the diffusion coefficient, and the quench depth are examined in details.

关键词：粒子运动各向异性二元混合物规则结构周期振荡

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Erosion-control mechanism of sediment check dams on the Loess Plateau

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International Journal of Sediment Research 2021年第5期36卷 668-677页

作者： Zhaoyin Wang Zuyu chena Shu Yu qiang Zhang Yu Wang Jianwei Hao State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower Research

Severe soil erosion occurs on the Loess Plateau in China, which makes the Yellow River the most sediment-laden river in the world. Construction of about 60,000 sediment check dams has remarkably controlled soil erosion on the Loess Plateau and reduced the sediment load of the middle and lower Yellow River. Nonetheless, little is known about the mechanism of erosion control and vegetation development of sediment check dams. The function of a single check dam mainly is trapping sediment,while the function of a train of check dams comprising dozens of or over hundreds of check dams in a gully encompasses controlling bed incision and reducing erosion energy. A formula was proposed to calculate the potential energy of bank failure and slope failure in a gully, which essentially constitutes the erosion energy. The erosion energy increases when gully incision occurs, which is induced by the incision of the Yellow River and its tributaries on the Loess Plateau. Sediment deposition in many gullies due to construction of check dams reduces the erosion energy to almost zero, which in turn greatly reduces soil erosion and sediment yield. Construction of check dams promotes vegetation development. The vegetation-erosion dynamics model was used to study the effect of check dams on vegetation development. Simulation results show that reforestation without check dam construction might result in an increase of vegetation cover in the first ten years and then a drop of vegetation cover to less than 10% in the later years. The check dams provide a foundation for vegetation development.

关键词： Loess plateau Check dam Energy of soil erosion Vegetation-erosion dynamics Gully incision

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On Ginzburg-Landau Vortices of Superconducting Thin Films

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Acta Mathematica Sinica,English Series 2006年第2期22卷 469-476页

作者： Shi jin DING qiang DU Department of Mathematics South China Normal University Department of Mathematics Penn State University

In this paper, we discuss the vortex structure of the superconducting thin films placed in a magnetic field. We show that the global minimizer of the functional modelling the superconducting thin films has a bounded number of vortices when the applied magnetic field hex 〈 Hc1 ＋ K log ｜ logε｜ where Hc1 is the lower critical field of the film obtained by Ding and Du in SIAM J. Math. Anal., 2002. The locations of the vortices are also given.

关键词： Superconducting thin films Global minimizer Vortices Pinning mechanism

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Invasive alien plants in China: An update

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Plant Diversity 2023年第1期45卷 117-121页

作者： qiang Hao jin-Shuang Ma China National Botanical Garden(North Garden) Beijing 100093China

China is the largest country in eastern Asia and contains habitats that range from cold temperate to tropical *** Chinese have a long history of plant cultivation and *** most cultivated plants in China are native species,many are non-native plants introduced throughout Chinese history for food,medicine,horticulture or ornamental purposes(Xie et al.,2001;Axmacher and Sang,2013).The Catalogue of Alien Plants in China records a total of 14,710 alien plants(Lin and Ma,2022).Among these,some,such as corn and potato,are used as food to meet the demands of China’s large ***-native plants that have established populations and colonized local environments are called naturalized *** studies indicate that the number of naturalized plant species in China ranges from 861(Jiang et al.,2011)to 933(Yan et al.,2019).

关键词： population habitat temperate

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Three-dimensional gravity inversion based on optimization processing from edge detection

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Geodesy and Geodynamics 2022年第5期13卷 503-524页

作者： Sheng Liu Shuanggen jin qiang Chen Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China School of Remote Sensing and Geomatics Engineering Nanjing University of Information Science and TechnologyNanjing 210044China

Gravity inversion requires much computation,and inversion results are often *** first problem is often due to the large number of grid *** detection method,i.e.,tilt angle method of analytical signal amplitude(TAS),helps to identify the boundaries of underground geological anomalies at different depths,which can be used to optimize the grid and reduce the number of grid *** requirement of smooth inversion is that the boundaries of the meshing area should be continuous rather than *** this paper,the optimized meshing strategy is improved,and the optimized meshing region obtained by the TAS is changed to a regular region to facilitate the smooth *** the second problem,certain constraints can be used to improve the accuracy of *** results of analytic signal amplitude(ASA)are used to delineate the central distribution of geological *** propose a new method using the results of ASA to perform local constraints to reduce the non-uniqueness of *** guided fuzzy c-means(FCM)clustering algorithm combined with priori petrophysical information is also used to reduce the non-uniqueness of gravity *** Open Acc technology is carried out to speed up the computation for parallelizing the serial program on *** general,the TAS is used to reduce the number of grid *** local weighting and priori petrophysical constraint are used in conjunction with the FCM algorithm during the inversion,which improves the accuracy of *** inversion is accelerated by the Open Acc technology on *** proposed method is validated using synthetic data,and the results show that the efficiency and accuracy of gravity inversion are greatly improved by using the proposed method.

关键词： Gravity inversion Locally weighted constraint Petrophysical constrain Fuzzy c-means clustering algorithm Open Acc technology

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Analysis of a new 5-phase bearingless induction motor

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第8期8卷 1311-1319页

作者： HUANG jin KANG Min YANG Jia-qiang School of Electrical Engineering Zhejiang University Hangzhou 310027 China

This paper addresses the bearingless motor with a single set of multiphase windings. The interaction between M and M±1 pole-pair magnetic fields produces radial force. Based on this principle,a bearingless machine is obtained. Conventional bearingless machine has dual windings,levitation windings and torque windings,which produce the two magnetic fields. In the proposed bearingless motor,the two needed magnetic fields are produced by feeding two groups of currents to a single set of multiphase windings. Taking a 5-phase induction motor as example,the inductance matrices,considering air gap eccentricity,are calculated with the modified winding function method. The radial force analytical model is deduced by virtual displacement,and its results are validated by FEA. The mathematical model of the new bearingless machine is set up,and the simulation results verified the feasibility of this novel bearingless motor.

关键词： Air-gap-flux-oriented control Bearingless motor Multiphase Radial force Single set of windings Modified winding function method

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