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    题名 作者 年代 出处 被引量
1Recombinase polymerase amplification as a promising tool in hepatitis C virus diagnosis显示文摘Hepatitis C virus(HCV)infection represents a significant health problem and represents a heavy load on some countries like Egypt in which about 20%of the total population are infected.Initial infection is usually asymptomatic and result in chronic hepatitis that give rise to complications including cirrhosis and hepatocellular carcinoma.The management of HCV infection should not only be focus on therapy,but also to screen carrier individuals in order to prevent transmission.In the present,molecular detection and quantification of HCV genome by real time polymerase chain reaction(PCR)represent the gold standard in HCV diagnosis and plays a crucial role in the management of therapeutic regimens.However,real time PCR is a complicated approach and of limited distribution.On the other hand,isothermal DNA amplification techniques have been developed and offer molecular diagnosis of infectious dieses at point-of-care.In this review we discuss recombinase polymerase amplification technique and illustrate its diagnostic value over both PCR and other isothermal amplification techniques.Hosam Zaghloul Mahmoud El-shahat 2014World Journal of Hepatology2014,6,12:12
2Remarkable Species Diversity on Adjacent Salt Lakes in South Australia显示文摘Lakes Acraman,Gairdner,Harris and Everard are a cluster of large episodic salt lakes on Eyre Peninsula,South Australia.These lakes have a characteristic terrestrial invertebrate fauna including various spiders,Peter HUDSON 2014Acta Geologica Sinica(English Edition)2014,88,S1:2
3中国脑生长标准——年龄和民族依赖性显示文摘Growth charts describe growth curves at various percentiles that illustrate the distribution of body measurements in children.Over many decades, growth charts have been an invaluable reference for public health workers and clinicians to track and evaluate the developmental status of children and to detect abnormal growth for early intervention. Since growth charts were published,they have been greatly detailed in different age, gender, and ethnicity groups.仇安琪 2020Science Bulletin2020,65,22:2
4A METHOD TO SOLVE BOUNDARY VALUE PROBLEMS显示文摘In the course of researches in certain boundary value problems in hydrodynamics and studying some mathematic-physical problems, one will encounter certain integral equations. If we solve these equations by the conventional method, we may acquire certain results which disagree with objective reality. Thus it may cause difficulties in describing the inner laws of the corresponding physics. To illustrate what I mean, let us consider the following cases.陈振诚 1981Chinese Science Bulletin1981,26,1:1
5Constructing the scattering matrix for optical microcavities as a nonlocal boundary value problem显示文摘We develop a numerical scheme to construct the scattering(S) matrix for optical microcavities, including the special cases with parity-time and other non-Hermitian symmetries. This scheme incorporates the explicit form of a nonlocal boundary condition, with the incident light represented by an inhomogeneous term. This approach resolves the artifact of a discontinuous normal derivative typically found in the R-matrix method. In addition, we show that, by excluding the aforementioned inhomogeneous term, the non-Hermitian Hamiltonian in our approach also determines the Periels–Kapur states, and it constitutes an alternative approach to derive the standard R-matrix result in this basis. Therefore, our scheme provides a convenient framework to explore the benefits of both approaches. We illustrate this boundary value problem using 1D and 2D scalar Helmholtz equations.The eigenvalues and poles of the S matrix calculated using our approach show good agreement with resultsobtained by other means.LI GE 2017Photonics Research2017,5,6:1
6Numerical investigation on detonation cell evolution in a channel with area-changing cross section显示文摘The two-dimensional cellular detonation propagating in a channel with area-changing cross section was numerically simulated with the dispersion-controlled dissipative scheme and a detailed chemical reaction model. Effects of the flow ex-pansion and compression on the cellular detonation cell were investigated to illus-trate the mechanism of the transverse wave development and the cellular detona-tion cell evolution. By examining gas composition variations behind the leading shock,the chemical reaction rate,the reaction zone length,and thermodynamic parameters,two kinds of the abnormal detonation waves were identified. To explore their development mechanism,chemical reactions,reflected shocks and rarefac-tion waves were discussed,which interact with each other and affect the cellular detonation in different ways.DENG Bo,HU ZongMin,TENG HongHui & JIANG ZongLin Key Laboratory of High Temperature Gas Dynamics,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100080,China 2007Science China(Physics,Mechanics & Astronomy)2007,50,6:1
7Pathologic MRI Stmdy of Intervertebral Disc Degemeration.显示文摘In order to illustrate the pathologic basis and clinic significance of MRI signs of degenerative disc, 11 adult cadaver specimens were studied with MRI and pathology. According to the result of examination, the discs were classifiedPei Renquan et al. Dept Radiol, Second Affiliated Hospital, Xian Med Uni, Xian 710004. 1995Chinese Medical Journal1995,,9:1
8Machine learning methods in psychiatry: a brief introduction显示文摘Machine learning(ML)techniques have been widely used to address mental health questions.We discuss two main aspects of ML in psychiatry in this paper,that is,supervised learning and unsupervised learning.Examples are used to illustrate how ML has been implemented in recent mental health research.Zhirou Zhou Tsung-Chin Wu Bokai Wang Hongyue Wang Xin M Tu Changyong Feng 2020General Psychiatry2020,33,1:1
9THE CONVERGENCE RATES OF SUMS OF WEIGHTED RANDOM VARIABLES WITH APPLICATIONS TO REGRESSION MODELS显示文摘Let {ε_n, n ≥ 1} be a series of random variables and {α_n, n ≥ 1} a series朱力行 成平 1988Chinese Science Bulletin1988,33,6:0
10Multiple-criteria decision analysis process by using prospect decision theory in interval-valued neutrosophic environment显示文摘This study intends to present an innovative study for ranking the alternatives in multiple-criteria decision analysis(MCDA)problems under the interval-valued neutrosophic soft set(IVNSS)environment.In this study,to illustrate the notion of objective and subjective weight,the prospect decision theory(PDT)performs an imperative role in determining decision-making problems.PDT predicts human behaviour in terms of gains and losses and considers the expected utility relation to a reference point rather than complete outcomes.In the analysis of merged criteria weight and the prospect decision-making matrix,the authors get a new dimension level for ranking the array of alternatives.This manuscript provides an improved score function(SF)to convert the interval-valued membership grades of truth,indeterminacy and falsity into a mathematical and computational value.The advantage of this method is that it merges the objective and subjective weight during the proposed method.They propose an algorithm based on the SF to determine MCDA problems with IVNSSs.They illustrate a case study and provide various comparative analyses to show its significance over existing studies.Chinnadurai Veerappan Bobin Albert 2020CAAI Transactions on Intelligence Technology2020,5,3:0
11EXTRACTING PRINCIPAL COMPONENT IMAGE BY AN OPTICAL METHOD OF K-L TRANSFORM显示文摘Ⅰ. INTRODUCTION K-L (Karhunen-Loeve) tranform is an effective method for feature extraction and data compression in the image processing. It is also used in classification of multispectral images. Up to now, all of K-L transform axe performed by digital method. Because such transform involves the second order statistic properties of image, it is neces-郭履容 苏显渝 张冠申 陈泽先 张少颖 1985Chinese Science Bulletin1985,30,3:0
12Professor Arnold L.(“Arny”)Demain (1927-2020):leaving a legacy in the field of Industrial Microbiology and Biotechnology;a personal appraisal显示文摘1.Introduction This article is a tribute to-and sadly-an“in memoriam”of Professor Arnold(Arny)L.Demain(born 26 April,1927,Brooklyn,New York,USA–deceased on 3 April 2020,Madison,New Jersey,USA).It aims to illustrate his worldwide impact over six decades in the field of industrial microbiology and biotechnology and to testify of his great ability to establish cordial personal human relationships and to create social networks with his students,former collaborators and also with the research and corporate biotech-sector worldwide.Erick J.Vandamme 2020Synthetic and Systems Biotechnology2020,5,4:0
13OSCILLATION AND ASYMPTOTIC BEHAVIOR OF SOME SECOND-ORDER RETARDED DIFFERENTIAL EQUATIONS显示文摘In this paper, we consider the following second order retarded differential equations x″(t)+cx′(t)=qx(t-σ)-lx(t-δ) (1) x″(t)+p(t)x(t-τ)=0 (2) We give some sufficient conditions for the oscillation of all solutions of Eq. (1) in the case where q, ι, σ, δ are positive numbers and c is a real number. And also, we study the asymptotic behavior of the nonoscillatory solutions. If necessary, we give some examples to illustrate our results. At last, we study Eq. (2) with some conditions on p(t).王明新 张秦 1991Acta Mathematica Scientia1991,11,4:0
14THE CORRESPONDENCE BETWEEN RINDLER RESPONSE AND THERMAL RESPONSE显示文摘The thermal response of static monopole particle detector in the presence of boundaries are given.We put forward a weak correspondence principle between Rindler response and thermal response and illustrate it in a number of examples.LIU Zixin WANG Mian XIONG Yongjian 1990Chinese Physics Letters1990,7,4:0
15SOLAR RADIATION AT GROUND IN EAST-ASIA FROM DATA OF THE GEOSTATIONARY SATELLITE GMS显示文摘A method(Rieland,1985)has been modified to determine the downward solar radiation at ground overEast Asia,using GMS-3 data of the satellite with a spatial resolution of 10×10 krn^2 and a time interval of 3hours.The distributions of the monthly mean global radiation are obtained for January,April,July and Octoberof 1985.These results illustrate that the topography effect of the Tibetan Plateau is not negligible.The valuesof global radiation over the high Tibetan Plateau during all seasons are higher than those in the lower-levelsurroundings.By comparing model results with ground observed data, the relative errors in monthly averagesof global radiation are 2.8% for clear sky and 6.3%,5.3%,5.0% and 4.5% for cloudy sky in January,April,July and October,respectively.The relative error in daily global radiation during the snow-free season is lessthan 20% and larger than 20% in snow-covered winter.We,however,had no data for these comparisons whichwere measured directly at the Plateau during the year 1985.方先金 1990Acta meteorologica Sinica1990,4,4:0
16THE SPECTRAL ANALYSIS OF TEN VOWELS OF THE STANDARD CHINESE AND THEIR CNARACTERISTICS显示文摘Three different approaches have been taken in order to get the mean spectral characteristics of ten vowels of putonghua(standard Chinese): The first approach is a classical one, in which the speech materials to be analysed are the isolatedly uttered vowel sounds by individuals situated in an anechoic chamber, the spectral analysis is performed with a spectrometer consisting of a bank of third-徐焕章 1966Chinese Science Bulletin1966,24,2:0
17A Review of Two Thesises on the Mythic Elements in Their Eyes Were Watching God显示文摘Many scholars such as Henry Louis Gates and Jane Campbell notice the use of mythic elements from different cultures in black writers’works.In The Signifying Monkey,Gates uses the word'mulatto'to illustrate the doublevoice feature of black texts which'speak in standard Romance or Germanic language'while always with a distinct accen't that signifies the various black vernacular许璐佳 2014环球人文地理2014,,6X:0
18Advances in Studies on Nonlinear Atmospheric Waves显示文摘A review on the progress in the research of nonlinear atmospheric waves, especially the nonlinear Rossby waves is made in this paper. Many results reported here have been obtained in Peking University.刘式达 刘式适 1990Advances in Atmospheric Sciences1990,7,2:0
19STUDY ON A NOVEL KIND OF CHEMILUMINESCENCE REACTION显示文摘Acidic hydrogen peroxide solution,in the presence of a certain metalcation,can react with alkaline solution and produce chemiluminescence lightemission.The present paper firstly reports this novel kind ofchemiluminescence reaction.The effect of some factors and metal ions on thechemiluminescence reaction has been tested and studied.Xiao Hu LU Ming Gang LU Department of Applied Chemistry,University of Science and Technology of China,Hefei 230026 1992Chinese Chemical Letters1992,3,8:0
20Chapter 6 Non-inferiority Trial显示文摘What is Non-inferiority trial(NI)?NI is designed to see whether a new test agent is Not Unacceptably less efficacious than a standard treatment with well-established historical data.With continuous updates in primary studies and clinical uses,incremental benefits of newly developed treatments may be marginal over current treatments.To design another 3-arms RCT of new test agent to a standard treatment,as well as,placebo group may be unethical and a waste of resources.In such circumstances,there has been increasing use of NIs.NIs are more complex to design,conduct,and interpret than traditional superiority trials.Lefs illustrate with a 3-arms diagram below.Peter Pang 2019实用休克杂志(中英文)2019,3,4:0
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