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| 1 | Value of ecosystem services in China显示文摘The function and services are the important components of the life-support system in theplanet, as well as the basic elements for sustainable development of environment and society. It is a must to evaluate it for incorporating it with the social-economic system. It is also an important approach to draw the public attention on the environmental and ecosystem conservation. In this study, the ecosystem function and services in China were estimated by employing the classification and economic parameters from Costanza et al. The type and area of terrestrial ecosystems were extracted from Vegetation Map of China (1:4 000 000), and then the distribution map of ecosystem services of China was drawn. According to our calculation, the total value of ecosystem services in China is 77 834.48×108 RMB yuan per annum. The value for terrestrial ecosystem is 56 098.46×108 yuan per annum, and that for marine ecosystem is 21 736.02×108 yuan per annum. The value of ecosystem services in China is 1.73 times bigger | CHEN Zhongxin & ZHANG XinshiLaboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Current address: Institute of Natural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China | 2000 | Chinese Science Bulletin2000，45，10： | 128 |
| 2 | STRUCTURES OF SYSTEMS WITH EXPONENTIAL LIFE DISTRIBUTIONS显示文摘Abstract. Structures of monotone systems and cold standby systems | CAI JUN WU YANHONG Department of Mathematics, Teacher’s College of Yanzhou University Yangzhou 225002 Current address: Department of Mathematics and Statistics, Concordia University, Montreal, Quebec, Canada. Department of Mathematical Sciences,University of Alberta, Edmonton, Alberta, T6G 2G1, Canada. | 1996 | Applied Mathematics(A Journal of Chinese Universities)1996，11，1： | 3 |
| 3 | Magnetic resonance imaging of hepatocellular carcinoma induced by diethylnitrosamine in Sprague-Dawley rats显示文摘Diethylnitrosamine (DENA) is able to induce various benign and malignant liver lesions in rats with a high success rate and a low mortality rate. It provides a more appropriate model that better simulates the various lesions occurring in humans than the usual model of tumor implantations. The aim of the present study was to evaluate MRI liver examination in Sprague-Dawley(SD) rats as a routine method to detect hepatocellular carcinoma (HCC) nodules induced by DENA and to follow up their growth. METHODS:Hepatic carcinogenesis was induced in 80 male SD rats using oral DENA solution. All animals were imaged for liver tumor detection with a 1.5 Tesla magnet (Siemens Sonata,Erlangen, Germany) using correspondence scan parameters and a radio-frequency knee coil. Macroscopic examinations were performed along the axial MRI sections to evaluate magnetic resonance imaging (MRI) findings, and histopathological assessment was also performed. RESULTS:No false negative results were obtained on MR images. Hepatic tumors in 72 rats were confirmed macro-scopically and 68 rats were detected by MRI till the 20th week. The smallest and the largest nodules detected by MRI were 2 mm and 37 mm in diameter respectively. The agreement rate of MRI with macroscopic observation was 39. 1% and 97. 4% respectively for 2 mm to 5 mm and more than 5 mm nodules. CONCLUSIONS:The hepatic tumor induced by DENA provides a more representative range of tumors for imaging diagnosis and interventional treatment. MRI is the best approach for scrutinizing pathological changes of rat livers in the period of observation. | Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China (Li X, Zhou XP and Guan YS) Department of Radiology, Ruijin Hospieal. Shanghai Second Medical University, Shanghai 200025 , China. Current address:Astra Zeneca R & D Alderley, Macclesfield SK 10 4 TG U. K. (Wang YX) | 2005 | Hepatobiliary & Pancreatic Diseases International2005，4，3： | 3 |
| 4 | 显示文摘 | Wilczvnski JR Immunolgical analogy between allograft rejection re- current abortion and preeclampsia the same basic mechanism | 2006 | Hun Immuno12006，67，： | 1 |
| 5 | 显示文摘 | Fitchett DH Theroux P Brophy JM et aL Assessment and management of acute coronary syndromes (ACS) :a Canadian per- spective on current guideline - recommended treatment - part 2: ST- segment elevation myocardial infarction | 2011 | Can J Cardiol2011，27，6： | 1 |
| 6 | Listijono DR显示文摘 | Current imaging techniques and potential biomarkers inthe diagnosis of acute aortic dissection | 2012 | JRSM Short Rep2012，3，11： | 1 |
| 7 | 显示文摘 | Bian Z Liu B Moher D et aL Consolidated standards of repor- ting trials (CONSORT) for traditional Chinese medicine: current situation and future development | 2011 | Front Med2011，5，2： | 1 |
| 8 | energy storage applications显示文摘 | Hadjipaschalis Overview of technologies I Poullikkas A current and future for electric power Efthimiou V | 2009 | Renewable and Sustainable Energy Reviews2009，13，67： | 1 |
| 9 | A multi-objective approach to vendor selection显示文摘 | Weber C A and Current J R | 1993 | European Journal of Operational Rsearch1993，68，2： | 1 |
| 10 | Non-cooperative negotiation strategies for vendor selection显示文摘 | Weber C A Current J R and Desai A | 1998 | European Journal of Operational Research1998，108，1： | 1 |
| 11 | Crptospoidiosios显示文摘 | Current WL and Garcia LS | 1991 | Clin Microbiol Rev1991，，4： | 1 |
| 12 | Characterizing and Reducing Particle Contamination in Ion Implantation Procession显示文摘 | Steve Moffatt and Michael Current | 1989 | Microcontamination1989，，： | 1 |
| 13 | Heuristic Concentration and Tabu Search: A Head to Head Comparison显示文摘 | Rosing K E ReVelle C S Rolland E Schilling D A and Current Jr | 1998 | European Journal of Operational1998，，104： | 1 |
| 14 | Vendor selection criteria and methods 显示文摘 | Weber CA Current J R and Benton W C | 1991 | European Journal of Operational Research1991，50，： | 1 |
| 15 | Bearing to PWM drives显示文摘 | Busse D Erdman J Kerkman currents and their relationship K J | 1997 | IEEE Transactions on Power Electron1997，12，2： | 1 |
| 16 | 显示文摘 | Variations in Contact Resistance Resulting From Oxide Formation and Decomposition in AgW and Ag-WC-C Contacts Passing Steady Currents for Long Time Periods | 1986 | IEEE Trans on CHMT1986，9，1： | 1 |
| 17 | American Thoracic Society显示文摘 | Proceedings of the ATS workshop on refractory asthma: current un derstanding recommendations and unanswered questions | 2000 | Am J Respir Crit Care Med2000，162，6： | 1 |
| 18 | , from channels toarrhythmias显示文摘 | CARMELIET K Cardiac ionic currents and acute ischemia | 1999 | Physiol Rev1999，79，： | 1 |
| 19 | CMOS Current Comparator Circuit 显示文摘 | Freitas D A and Current K W | 1983 | Electronics Letters1983，19，17： | 1 |
| 20 | 1 infection显示文摘 | Matsushita S Current status and future issues in the treatment of HIV | 2007 | Int Hematol2007，72，1： | 1 |
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