|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Alterations in metastatic properties of hepatocellular carcinoma cell following H-ras oncogene transfection显示文摘AIM To demonstrate the relationship betweenH-ras oncogene and hepatocellular carcinoma(HCC) metastasis.METHODS Activated H-ras oncogene wastransfected into SMMC 7721, a cell line derivedfrom human HCC, by calcium phosphatetransfection method. Some metastasis-relatedparameters were detected in vitro, includingadhesion assay, migration assay, expression ofcollagenase ⅣV (c ⅣV ase) and epidermal growthfactor receptor (EGFR).RESULTS The abilities of H-ras-transfected cellclones in adhesion to laminin (LN) or fibronectin(FN), migration, c Ⅳ ase secretion increasedmarkedly, and the expression of EGFR elevatedmoderately. More importantly, these alterationswere consistent positively with the expressionof p21, the protein product of H-ras oncogene.CONCLUSION H-ras oncogene could inducethe metastatic phenotype of HCC cell in vitro toraise its metastatic potential. | Qing Wang~1 Zhi Ying Lin~2 Xiao Li Feng~3 ~1Department of Microbiology,Medical Center of Fudan University.the former Shanghai Medical University,Shanghai 200032,China ~2Liver Cancer Institute,Zhongshan Hospital,Shanghai 200032,China ~3Shanghai Institute of Biochemistry,Academy Sinica,Shanghai 200031,ChinaQing Wang earned master degree from Shanghai Medical University in 1996,now a senior lecturer of microbiology,specialized in the role of oncogcncs on tumor metastasis,having 8 papers published. | 2001 | World Journal of Gastroenterology2001，7，3： | 48 |
| 2 | Liquid Crystal Motion Picture Projector显示文摘LiquidCrystalMotionPictureProjector①SHIYongji(LuoyangTechnologyColege,Luoyang471003,CHN)Abstract:Aliquidcrystalmovingpicturep... | SHI Yongji(Luoyang Technology College,Luoyang 471003,CHN)Abstract: A liquid crystal moving picture projector and method are described.Light incident on a liquid crystal display-type device is selectively scattered or transmitted by respective portions of liquid crystal display,and a projection mechanism projects an image formed by either such scattered light or such transmitted light.A liquid crystal moving picture projector includes a liquid crystal display for creating characteristics of an image,and projecttion optics for projecting images sequentially created by the display.The display includes a liquid crystal material capable of temporary storing information at respective areas.The temporary storage may be a function of charge storing directly on liquid crystal material.A method of projecting plural images in sequence includes:creating an image or characteristics of an image in a liquid crystal material,storing such image in such liquid crystal material,directing light at such liquid crystal material,projecting such image as a function of light transmitted through or scattered by such liquid crystal material,and creating a further image in such liquid crystal material for subsequent projection. | 1997 | Semiconductor Photonics and Technology1997，3，3： | 35 |
| 3 | Mobile Ubiquitous Service Environment显示文摘The Mobile Ubiquitous Service Environment (MUSE),established through the coordination and integration of mobile telecommunications and ubiquitous network,in the pursuit of Always Best Experience (ABE),represents the major development trend for the next generation mobile wireless network. Research on MUSE will involve the integration of the computing model system,service platform system,operating system and terminal structure system,all of which involve exploration and innovation of a new networking structure,its control and management as well as way of measuring. The change in network resources triggers the change in network computing models. To let readers have a basic understanding of MUSE,this lecture introduces it in four sections. This section focuses on the development and demand analysis of the service platform. | Zhang Ping,Ji Yang,Feng Zhiyong (Research Center for Wireless New Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China) The Mobile Ubiquitous Service Environment (MUSE),established through the coordination and integration of mobile telecommunications and ubiquitous network,in the pursuit of Always Best Experience (ABE),represents the major development trend for the next generation mobile wireless network. Research on MUSE will involve the integration of the computing model system,service platform system,operating system and terminal structure system,all of which involve exploration and innovation of a new networking structure,its control and management as well as way of measuring. The change in network resources triggers the change in network computing models. To let readers have a basic understanding of MUSE,this lecture introduces it in four sections. This section focuses on the development and demand analysis of the service platform. | 2007 | ZTE Communications2007，5，2： | 10 |
| 4 | Thrombin activation and liver inflammation in advanced hepatitis C virus infection显示文摘Hepatitis C virus(HCV) infection is associated with increased thrombotic risk. Several mechanisms are involved including direct endothelial damage by the HCV virus, with activation of tissue factor, altered fibrinolysis and increased platelet aggregation and activation. In advanced stages, chronic HCV infection may evolve to liver cirrhosis, a condition in which alterations in the portal microcirculation may also ultimately lead to thrombin activation, platelet aggregation, and clot formation. Therefore in advanced HCV liver disease there is an increased prevalence of thrombotic phenomena in portal vein radicles. Increased thrombin formation may activate hepatic stellate cells and promote liver fibrosis. In addition, ischemic changes derived from vascular occlusion by microthrombi favor the so called parenchymal extinction, a process that promotes collapse of hepatocytes and the formation of gross fibrous tracts. These reasons may explain why advanced HCV infection may evolve more rapidly to end-stage liver disease than other forms of cirrhosis. | Emilio González-Reimers Geraldine Quintero-Platt Candelaria Martín-González Onán Pérez-Hernández Lucía Romero-Acevedo Francisco Santolaria-Fernández | 2016 | World Journal of Gastroenterology2016，22，18： | 5 |
| 5 | 活性氧化铝除氟研究显示文摘针对目前活性氧化铝饮水除氟中存在的问题,进行了生产性试验研究,通过采用原水投加CO_2气体降低pH值、小颗粒活性氧化铝、大流量短历时的NaOH循环再生法等新技术,提高了活性氧化铝的吸附容量和处理水的能力,克服滤料板结和假疲劳,除氟效果稳定可靠,水质好,再生时间短,用药省,降低了基建投资和运转费用。 | North China Municipal Engineering Design Institute A full-scale plant was set up for studying the existing problems on the fluoride removal from drinking water by activated alumina. Some new methods was adopted,such as the addition of CO2to reduce water pH value,the use of small-sized activated alumina,and the employment of a cyclic regeneration at large flow rate with NaOH as regenerant,which result in the improvement of adsorption capacity of activated alumina and treatment capacity, the elimination of the hardening of filtration materials and false fatigue,stable and reliable effectiveness,good quality in water,short regeneration time,small consumption of regenerant. And then the capital and openational costs were reduced. | 1989 | 中国给水排水1989，5，3： | 5 |
| 6 | 中国南方人A型行为问卷测查结果的分析显示文摘本文采用张伯源主持编制的A型行为问卷对中国南方13,808名正常成人进行测查,其中男性7943例,女性5865例。结果表明:我国南方人较北方人行为节凑慢、竞争性强;南方人男性与女性A型行为特征无明显差异,与北方人测查结果一致;不同年龄组的A型行为特征与北方人测查结果相同:即:45~>25~>35~>55~>15~>65岁以上组;不同职业组的A型行为特征是:商业>科技>干部>工人,与北方人测查结果存在一定差异;不同地区(省)间存在较大差异。 | Guo Huimin et al, Thesurvey cooperative group of the question paper on Chinese Southerners’type A bebavior pattern | 1995 | 中国临床心理学杂志1995，3，4： | 4 |
| 7 | 一种解列车控制问题的新算法显示文摘本文提出一种解列车控制问题的新算法。该算法基于遗传算法、罚函数法和RungaKuta法。 | CHENG JinSong (Dept. of Computer, Anhui University, Hefei AH,230039) In this paper, we present a new algorithm for solving train control problem. The algorithm is based on genetic algorithm, penalty function method and the RungaKutta method. | 1999 | 微机发展1999，9，4： | 4 |
| 8 | A theoretical model of collision between soft-spheres with Hertz elastic loading and nonlinear plastic unloading显示文摘This paper presents a theoretical model on the normal(head-on) collision between soft-spheres on the basis of elastic loading of the Hertz contact for compression process and a nonlinear plastic unloading for restitution one,in which the parameters all are determined in terms of the material and geometric ones of the spheres,and the behaviors of perfect elastic,inelastic,and perfect plastic collisions appeared in the classical mechanics are fully described once a value of coefficient of restitution is specified in the region of 0 ≤ε≤ 1.After an empirical formula of the coefficient of restitution dependent on the impact velocity is suggested to fit the existing experimental measurements by means of the least square method,the predictions of the dependency and the collision duration are in well quantitative agreement with their experimental measurements.It is found that the measurable quantities are dependent on both the impact velocity and the parameters of spheres.Following this model,finally,an approach to determine the spring coefficient in the linear viscoelastic model of the collision is also displayed.These results obtained here will be significantly beneficial for the applications where a collision model is requested in the simulations of relevant grain flows and impact dynamics etc.. | Youhe Zhou 1,2,a) 1) Key Laboratory of Mechanics on Disaster and Environment in Western China,the Ministry of Education of China 2)Department of Mechanics and Engineering Science,College of Civil Engineering and Mechanics,Lanzhou University,Lanzhou 730000,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，4： | 4 |
| 9 | Response characteristics of an ascending auditory neuron AN3 and its projections in the brain of the bushcricket Gampsocleis grationsa显示文摘The phonotaxis of bushcrickets demonstrates that they have goodcapability of recognizing conspecific songs and locating the sound source,which bases on complicated auditory mechanisms of the central nervoussystem(CNS).This article describes the response characteristics of AN3,an auditory ascending neuron in the prothoracic ganglion,and its projec-tions within the brain.The AN3,with a quasi-tonic discharge pattern,has high sensitivity,directionality and ability to encode sound intensity.Therefore,it plays an important role in auditory information processingof CNS.Its projections in the brain are mainly concentrated in the lateralzone of the deutencephalon,where synaptically connecting local auditoryinterneurons in the brain. | GAO Panpan and SHEN Jun -Xian(Institute of Biophysics, Academia Sinica, Beijing 100080)The phonotaxis of bushcrickets demonstrates that they have good capability of recognizing conspecific songs and locating the sound source, which bases on complicated auditory mechanisms of the central nervous system (CNS). This article describes the response characteristics of AN3, an auditory ascending neuron in the prothoracic ganglion, and its projections within the brain. The AN3 , with a quasi-tonic discharge pattern, has high sensitivity, directionality and ability to encode sound intensity. Therefore, it plays an important role in auditory information processing of CNS. Its projections in the brain are mainly concentrated in the lateral zone of the deutencephalon, where synaptically connecting local auditory interneurons in the brain. | 1992 | Chinese Journal of Acoustics1992，11，1： | 3 |
| 10 | Interventional endoscopic ultrasonography: an overview of safety and complications显示文摘 | María Victoria Alvarez-Sánchez Christian Jenssen Siegbert Faiss Bertrand Napoléon | 2014 | Surgical Endoscopy2014，，3： | 2 |
| 11 | Security Situation in Afghanistan显示文摘In the first half of 2006, the Taliban armed forces intensified their terrorist attacks in Afghanistan, thus drawing attention of the international community. The worse situation there will inevitably produce negative impacts on the security in the west regions of China. Based on a thorough analysis of the situation, the author concluded that the low-intensity conflicts there would continue in some time to come. | Dr. Fang Jinying is an Associate Professor of the Institutes of Security and Strategic Studies, China Institutes of Contemporary International Relations (CICIR). Her major academic interests are in the worldwide Islamic extremism and South Asian security. She has written a number of articles. She is also the author of The Emergency and Development of “Ethnic Chinese Issue” in Southeast Asia (2001), and coauthor of Focus on Global Ethnic Issues (2001) and Focus on World Religious Issues (2003). | 2006 | Contemporary International Relations2006，16，6： | 2 |
| 12 | Using soil surface gray level to determine surface soil water content显示文摘How to determine surface soil water content(SWC) quickly and accurately is fundamental in studying eco-hydrological processes and their modeling.Here we use laboratory experiments to determine surface SWC using soil surface gray level(SGL) values.A negatively exponential relationship exists between SGL and SWC,i.e.,SGL increases with the decrease of SWC.SGL can be estimated based on initial SGL value(surface gray level when SWC=0),SWC,and a surface roughness coefficient characterized by mean soil particle size.The variation range of SGL was larger than that of SWC,indicating that changes in SWC were enhanced in SGL,and that SGL would thus be sensitive to changes in soil water.At the 95% confidence level,SWC can be determined by using the relationship between SWC and SGL established by the experiments.The determination of SWC has a high precision when SWC was between dry and saturated. | ZHU YuanJun1,2,WANG YunQiang1,2 & SHAO MingAn1,2 1 State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau,Institute of Soil and Water Conservation,Northwest A & F University,Yangling 712100,China 2 Institute of Soil and Water Conservation,Chinese Academy of Sciences & Ministry of Water Resources,Yangling 712100,China | 2010 | Science China Earth Sciences2010，53，10： | 2 |
| 13 | VI,Influence of phosphorus nutrition on geowth and flavonoid content显示文摘 | Murali N S Teramura A H Effects of UV- B radiation on the soybean | 1985 | Physiol Plant1985，63，： | 2 |
| 14 | Segmental testicular infarction due to sickle cell disease显示文摘 | Gofrit ON Ruud D Shapiro A | 1998 | J Urol1998，160，31： | 1 |
| 15 | Rapid PCRbased identification of apple(Malus)cultivars and species显示文摘 | Mort on A Adams A N Barbara D J | 1993 | BCPC Monograph1993，54，： | 1 |
| 16 | 2显示文摘 | EVANS H K WYLIE A A MURPHY S K et akThe neuronatin gene resides in a micro-imprinted domain on human chromosome 20ql 1 | 2001 | Genomics2001，77，12： | 1 |
| 17 | Observer Kalman filter identification of an autonomous underwater vehicle 显示文摘 | TIANO A SUqq'ON R LOZOWICKI A | 2007 | Contr Eng Practice2007，15，6： | 1 |
| 18 | Structure and mechanical properties of hydroxypropylated starch films显示文摘 | Lafargue D Pontoire B Buléon A | 2007 | Biomacromolecules2007，8，： | 1 |
| 19 | Guidelines on the management of valvular heart disease ( version2012) 显示文摘 | Joint Task Force on the Management of Valvular Heart Disease ofthe European Society of Cardiology ( ESC) European Associationfor Cardio - Thoracic Surgery ( EACTS) Vahanian A | 2012 | Eur Heart J2012，33，19： | 1 |
| 20 | he ecophysiologi , Pinus densiflo t, 2003,176:195 Effects of uncal characteris- ra 显示文摘 | Kume A~ derstory vegetation on t tics of an overstory pine Ecology and Managemen Tsubei N | 2003 | Forest2003，203，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员