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| 1 | 全球气候研究计划 (WCRP)中的气候与冰冻圈项目 (CliC) :冰冻圈与气候的优先研究领域 (英)显示文摘The cryosphere is an integral part of the global climate system, however, many aspects of the cryosphere have not been fully covered within WCRP. Issues relating to potential changes in the climate cryosphere system become more and more important in order to describes research and coordination initiatives required to integrate fully studies of impact and response of the cryosphere to climate change. The article also indicates the recent progress of CliC, and its future plan. | Roger G. Barry (National Snow and Ice Data Center, University of Colorado, Boulder, CO, 80309-0449, USA) | 2002 | 冰川冻土2002，24，5： | 2 |
| 2 | Some Evidence for Host Specificity in Arbuscnlar Myc-orrhizas显示文摘SomeEvidenceforHostSpecificityinArbnscnlarMyc-orrhizasJ.B.ROGERS,P.CHRISTIE,A.S.LAIDLAWDepartmentofAppliedPlantScience,TheQue... | J.B. ROGERS P. CHRISTIE and A. S. LAIDLAWDepartment of Applied Plant Science, The Queen’s University of Belfast, Newforge Lane, Belfast BT95PX(U. K.)Department of Agricnltural Chemistry, The Queen’s University of Belfast, Newforge Lane, Belfnst BT | 1994 | Pedosphere1994，4，4： | 2 |
| 3 | Selenium Regulation of Selenium-dependent Glutathione Peroxidases in Animals and Transfected CHO Cells显示文摘Glutathione peroxidase (GPX1) was the first identified selenium-dependent enzyme, and this enzyme has been most useful as a biochemical indicator of selenium (Se) status and the parameter of choice for determining Se requirements. We have continued to study Se regulation of GPX1 to better understand the underlying mechanism and to gain insight into how cells themselves regulate nutrient status. In progressive Se deficiency in rats, GPX1 activity,protein and mRNA all decrease in a dramatic, coordinated and exponential fashion such that Se-deficient GPX1 mRNA levels are 6-15% of Sexadequate levels. mRNA levels for other Sedependent proteins are far less decreased in the same animals. The mRNA levels for a second Se-dependent peroxidase, phospholipid hydroperoxide glutathione peroxidase (GPX4 ), are little affected by Se deficiency, demonstrating that Se regulation of GPX1 is unique. Se regulation of GPX1 activity in growing male and female rats shows that the Se requirernent is 100 ng/g diet, based on liver GPX1 activity; use of GPX1 mRNA as the parameter indicates that the Se requirement is nearer to 50 ng Se/g diet in both male and female rats. This approach will readily detect an altered dietary Se requirement, as shown by the incremental increases in dietary Se requirement by 150, 100 or 50 ng Se/g diet in Seudeficient rat pups repleted with Se for 3, 7 or 14 d, respectively. Studies with CHO cells stably transfected with recombinant GPX1 also show that overexpression of GPX1 does not alter the minimum level of media Se necessary for Se-adequate levels of GPX1 activity or mRNA. We hypothesize that classical GPX1 has an integral biological role in the mechanism used by cells to regulate Se status,making GPX1 an especially useful and effective parameter for determining Se requirements in | ROGER A. SUNDE BRITTA M. THOMPSON MELANIE D. PALM SHERRI L.WEISS KEVIN M. THOMPSON AND JACQUELINE K. EVENSON(Nutritional Sciences Program and Department of Biochemistry,University of Missouri, Columbia MO 65211 USA) | 1997 | Biomedical and Environmental Sciences1997，10，2： | 2 |
| 4 | Effects of inhaled endotoxin on induced sputum in normal, atopic and atopic asthmatic subjects显示文摘 | Rogers OF Hart LA | 1998 | Thorax1998，53，7： | 1 |
| 5 | TEMPORAL AND SPATIAL VARIATION OF EMISSIONFACTORS IN CHINA显示文摘Emission factor is a measure of pollution intensities caused by economic activities, which can be used to assess potential for pollution reduection. With the emission factors derived based on relatively few datu points or based on data collected from a specfic region, one can predict the total environmental pollution levels for the drire economy or for another region once the total leve of economic actvities of the concemed economy or region is known or prescribed. Moreover,research on emission factors can not only guide the decision-making process in choosing the best environmental protection strategy, but also be used as indicators. for the assessment and comparison of the environmentally sound development. In this paper, emission factors based on output and employment in different periods,provinces and industries are calculated, based on which temporal and spatial analyses of emission factors are carried out. Obvious declining trends of emission factors both by provinces and industries are declared, and the regional differentiation by provinces and industries is also verified. | Bi Jun(Institute of Geography, CAS, Beijing 100101People’s Republic of China)CC.Yu Peter Rogers(Division of Applied Sciences, Harvard University, Cambridge 02138, USA) | 1996 | Journal of Geographical Sciences1996，6，1： | 0 |
| 6 | SEDIMENT TRANSPORT PROCESSES IN AGRICULTURAL WATERSHEDS显示文摘Determination of the total sediment load at selected points in agricultural Watersheds is important forevaltating the status of a land area. Total sediment load date allows the identification of problem areaswhere the land surface is eroding at rates too high to allow sustainable agriculture and/or is producingsediment at rales such that aquatic organisms in nearby streams will be adversely affected. Thedevelopment of effective sampling strategies and accurate computaional models requires accurateinformation on the processes by which sediment is transported. Researchers at the NationalSedimentation Laboratory are developing and testing new methods to measure and predict sedimentbospoft. These new methods are providing an improved understanding of the processes involved insediment transport and are leading to important advancements in the measurement and prediction ofsediment transport. | Roger A. Kuhnle Sean J. Bennett Carlos V. Alonso Ronald L. Bingner Eddy Langendoen(National Sedimentation Laboratory, U.S. Department of Agriculture, Agricultural Research Service, P.O. Box 1157,Oxford, Mississippi 38655, USA) | 2000 | International Journal of Sediment Research2000，15，2： | 0 |
| 7 | A Parameterization of Bowen Ratio with Respect to Soil Moisture Availability显示文摘AParameterizationofBowenRatiowithRespecttoSoilMoistureAvailability￥YeZhuojiaandRogerA.Pielke(InstituteofAtmosphericPhysics,Ch... | Ye Zhuojia and Roger A. Pielke (Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China)(Colorado State University, Department of Atmospheric Science, Fort Collins, Colorado 80523, USA) | 1995 | Advances in Atmospheric Sciences1995，12，4： | 0 |
| 8 | An examination on several key problems inChina's urbanization process显示文摘Industrialization is the leading factor to urbanization which is the inexorable trend ofeconomic construction. In the future urbanization process three key problems are identified as I)relation between urban construction and cultivared land protetion, 2) how to take China’s way tourbanization, and 3) China should take the Way of nd and urban coordination and forbid to occupyagricultural land for blind urbsn condtruction. | YAO Shi-mou Xiu-min, Roger Chan(1. Nanjing Institute of Geography Chinese Academy of Sciences, Nanjing 21008, China 2.The University of Hong Kong) | 1999 | Journal of Geographical Sciences1999，9，3： | 0 |
| 9 | 墨西哥湾海上泄压和压力封存箱化的四维地震监控显示文摘在油藏开发和油藏工程方面,三维地震勘探技术正在起着越来越重要的作用,每年都可发现三维地震在这些方面的应用,特别是时间延续的三维地震即四维地震技术使得用计算机来监测油田开发的日子已为期不远。也许这种监测技术不久将成为石油工业的标准。野外生产监测仪可以源源不断、近真时地把地层压力、温度和流体的变化送到控制中心。在控制中心,油藏模拟、弹性波和声波的正反演将告诉我们有关这些变化的答案,进而通过先进的计算机视像显示来控制油藏的开发。文中我们应用在哥伦比亚大学Lamont-DohertyEarthObservato-ry发展的四维地震振幅分析技术分析了墨西哥湾EugeneIsland330/338块中的沙岩油气藏LF。初步结果显示,在类似北墨西哥湾的盆地中,连续三维地震反射振幅的变化可以直接显示第三系盆地中的碎屑岩油气藏的存在。井A-8ST的成功钻探也证明了四维地震振幅的变化可以有效地帮助寻找油气藏。目前,我们正利用现有的测井资料结合地震正反演技术进一步分析振幅的变化。我们相信这种应用重复三维地震勘探的四雏地震技术将在油藏开发和生产中起着越来越大的作用。 | Wei He Liqing Xu Roger N. Anderson(Lamont-Doherty Earth Observatory of Columbia University,Palisades, NY 10964,USA) | 1995 | 地学前缘1995，2，3： | 0 |
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