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| 1 | A brief introduction to recent applications of several sediment-analysis techniques in palaeolimnological studies-dry bulk density and water content, mineral magnetism, carbonate content, and content of total organic carbon,nitrogen content and carbon/ni显示文摘Determination of dry bulk density and water content measurement of magnetic susceptibility (x) and saturation isothermal remanent magnetization (SIRM), determination of carbonate content, and determination of total organic carbon (TOC) content nitrogen content (N%) and carbon/nitrogen (C/N) ratio are some of the techniques which have been widely applied to lacustrine-sediment analyses. The techniques,complemented by others, are usually useful for revealing characteristics of lacustrine-sediments and thus for postulating hydrological regimes in the lake and environmental conditions and human activity around it in palaeolimnological studies. A very brief review is presented on recent applications of these techniques in palaeolimnological work with English literatures published mainly since 1985 and focus given on interpretations of results of these analyses related to palaeoenvironmental reconstructions. Low dry bulk density and high water content often imply relatively warm and wet conditions. High X and SIRM are usually resulted from reduced dilutions in the lake and intensified erosions on its catchment. both of which can be in turn attributed to environmental changes. While variations in patterns of X and SIRM may give further insight on mineral magnetism and thus implications on environmental conditions. Increased carbonate content seems likely to associate to warm and dry conditions.Increased TOC content is virtually used as one of indicators of warm and wet conditions and variations in C/N ratio may hint variations in relative contributions of different sources, aquatic and terrestrial, to the total organic matter in lake sediments and hence to lake-level fluctuations and climate changes. | WANG Hong-ya (Dept. of Urban and Environmental Sciences, Peking University, Beijing 100871, China Geophysical Laboratory, Dot. of Earth Sciences, University of Aarhus, Finlandsgade 8. DK- 8200, Aarhus N, Denmark) | 2000 | Journal of Geographical Sciences2000，10，1： | 2 |
| 2 | The case for early detection显示文摘 | ETZIONI R URBAN N RAMSEY S | 2003 | Nat Rev Cancer2003，3，4： | 1 |
| 3 | Modulation of spinal excitability:co-operation between neurokinin and excitatory amino acide neurotransmitters 显示文摘 | URBAN I THOMPSON S W N DRAY A | 1994 | Trends Neurosci1994，17，： | 1 |
| 4 | MRI imaging for the preoperative planning of sphincter-saving surgery for tumors of the lower third of the rectum:use of intravenous and endorectal contrast materials显示文摘 | Urban M Rosen HR Holbling N | 2000 | Radiology2000，214，2： | 1 |
| 5 | Early detection of ovarian cancer: promise and reality 显示文摘 | Bast RC Jr Urban N Shridhar V | 2002 | Cancer Treat Res2002，107，： | 1 |
| 6 | Triangular CdS nanocrystals :Structural and optical studies显示文摘 | PINNA N WEISS K URBAN J | 2001 | Adv Mater2001，13，： | 1 |
| 7 | Imipenem resistance in KlebsieUa pneumoniae is associated with the combination of ACT-1, a plasmid-mediated AmpC β-lactamase, and the loss of an outer membrane protein 显示文摘 | Bradford PA Urban C Mariano N | 1997 | J Antimicrob Agents Chemother1997，41，3： | 1 |
| 8 | Addition of sulfur to organic matter during early diagenesis of lake sediments显示文摘 | URBAN N R ERNST K BERNASCONI S | 1999 | Geochim Cosmochim Acta1999，63，6： | 1 |
| 9 | Antibody immunity to the p53onoogrnic protein is a prognostic indicator in ovarian cancer显示文摘 | Goodell V Salazar LG Urban N | 2006 | J Clin Oncol2006，24，5： | 1 |
| 10 | In vitro double and triple bacteri- cidal activities of doripenem, pnlymyxin B, and rifampin against muhidrug - resistant Acinetobacter baumannii , Pseudomona~ aerugi- nosa , Klebsiella pneumoniae , and Escherichia coli 显示文摘 | Urban C Mariano N Rahal JJ | 2010 | Antimierob Agents Chemother2010，54，： | 1 |
| 11 | Impact of genotype andmorphology on the prognosis of glioblastoma 显示文摘 | Schmidt MC Antweiler S Urban N | 2002 | NeuropatholExp Neurol2002，61，4： | 1 |
| 12 | Imipenem resistance in Klebsiella pneumoniae is associated with the combination of ACT-1, a plasmid-mediated AmpC β-lactamase, and the loss of an outer membrane protein 显示文摘 | Bradford PA Urban C Mariano N | 1997 | Antimicrob Agent Chemother1997，41，： | 1 |
| 13 | Sulfate reductiion and diffusion in sediments of Little Rock' Lake显示文摘 | Urban N R Brezonik P L Baker L A | 1994 | Wisconsin Limnol Oceanogr1994，39，： | 1 |
| 14 | Truncus arteriosus:Ten-year experience with homograft repair in neonates and infants显示文摘 | Urban AE Sinzobahamvya N Brecher AM | 1998 | Ann Thorac Surg1998，66，6： | 1 |
| 15 | In vitro double and triple bactericidal activities of doripenem, polymyxin B, and rifampin against multidrug-resistant Ainetobacter baumannii , Pseudomonas aeruginosa , Klebsiella pneumoniae , and Escherichia coli 显示文摘 | Urban C Mariano N Rahal J J | 2010 | Antimicrob Agents Chemother2010，54，6： | 1 |
| 16 | The case for early detection显示文摘 | Etzioni R Urban N Ramsey S | 2003 | Nat Rev Cancer2003，3，： | 1 |
| 17 | The case for early detection显示文摘 | ETZIONI R URBAN N RAMSEY S | 2003 | Nat Rev Cancer2003，3，4： | 1 |
| 18 | Consensus guidelines on screening for hypopituitarism following traumatic brain injury显示文摘 | E. Ghigo B. Masel G. Aimaretti J. Léon-Carrión F. F. Casanueva M. R. Dominguez-Morales E. Elovic K. Perrone G. Stalla C. Thompson R. Urban | 2005 | Brain Injury2005，，9： | 1 |
| 19 | Electron microscopic characterization of reactively sputtered ZnO films with different Al-doping levels Thin solid Films显示文摘 | SIEBER I WANDERKA N URBAN I | 1998 | 330(2):108-1131998，330，2： | 1 |
| 20 | Fluctuations in sawgrass and cattail densities in Evergrades Water Conservation Area 2A under varying nutrient, hydrologic and fire regimes显示文摘 | Urban N H Davis S M Aumen N G | 1993 | Aquatic Botany1993，46，3： | 1 |
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