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| 1 | Biomass and carbon dynamics of a tropical mountain rain forest in China显示文摘Biometric inventories for 25 years,from 1983 to 2005,indicated that the Jianfengling tropical mountain rain forest in Hainan,China,was either a source or a modest sink of carbon.Overall,this forest was a small carbon sink with an accumulation rate of(0.56±0.22) Mg C ha-1yr-1,integrated from the long-term measurement data of two plots(P9201 and P8302).These findings were similar to those for African and American rain forests((0.62±0.23) Mg C ha-1yr-1).The carbon density varied between(201.43±29.38) Mg C ha-1 and(229.16±39.2) Mg C ha-1,and averaged(214.17±32.42) Mg C ha-1 for plot P9201.Plot P8302,however,varied between(223.95±45.92) Mg C ha-1 and(254.85±48.86) Mg C ha-1,and averaged(243.35±47.64) Mg C ha-1.Quadratic relationships were found between the strength of carbon sequestration and heavy rainstorms and dry months.Precipitation and evapotranspiration are two major factors controlling carbon sequestration in the tropical mountain rain forest. | CHEN DeXiang1*,LI YiDe1,LIU HePing2,XU Han1,XIAO WenFa3,LUO TuShou1,ZHOU Zhang4 & LIN MingXian1 1Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou 510520,China 2Department of Physics,Atmospheric Science and Geoscience,Jackson State University,MS 39217,USA 3Research Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry,Beijing 100091,China 4Department of Ecology,College of Urban and Environmental Sciences,Peking University,Beijing 100872,China | 2010 | Science China(Life Sciences)2010，53，7： | 20 |
| 2 | Developmental Lead Exposure Alters the Distribution of Protein Kinase C Activity in the Rat Hippocampus显示文摘Chronic low-level lead (Pb) exposure in children is known to cause a deficit in learning and memory. In vitro studies have demonstrated that Pb altered protein kinase C (PKC) activityt Especially, hippocampal PKC has been correlated with performance in several learning tasks. The effects of Pb exposure on hippocampal PKC were investigated during development at various postnatal ages: postnatal day (PN) 7, 14, 28, and 56. Two-tenth % Pb acetate was administered to pregnant and lactating dams and then administered to weanling rats in drinking water. PKC activity was measured in both membrane and cytosolic fractions from the hippocampi of the controls and Pb-exposed animals. Pb-induced increase in PKC activity in the cytosolic fraction was obsereved in the PN56 rats. In contrast, PKC activity was decreased by Pb at PN7 in the membrane fraction. Furthermore, a significant decrease in the ratio of membrane to cytosolic PKC activity which is representative of PKC distribution was observed in the PN28 and PN56 Pb-exposed rats relative to the same-age controls. This study indicates that chronic Pb exposure during development influences hippocampal PKC activity and distribution. These changes may be involved in the subclinical neurotoxicity of chronic Pb exposure in young children. | HWEI-HSIEN CHEN TANGENG MA ARTHUR S. HUME AND ING K. HO(Deportment of Pharmacology and Toxicology, University ofMississippi Medical Center, 2500 North State Street,Jackson, MS 39216, USA) | 1998 | Biomedical and Environmental Sciences1998，11，1： | 7 |
| 3 | 脊髓损伤后残存自主神经功能载录国际标准显示文摘近年来,脊髓损伤神经学分类园际标准(International Stand- ards for the Neurological Classification of Spinal Cord Injury, ISNCSCI)被用来记载脊髓损伤后运动和感觉功能的损害,目前该标准已是第六版。1992年第一份国际认可的标准出版时,曾进行了较大的修订,修订内容包括完全性损伤与不完全性损伤的定义, | MS Alexander AB Jackson W Donovan DE Graves SL Elliott A Krassioukov AW Sheel I Estoresl B Green A Gousse NL Braekett D Cardenas M Kennelly A-K Karlason F Biering-Sorensen K Krogh T Linsenmeyer R Marino J Ditunno CJ Mathias I Perkash G Creasey G Schilero J Wecht B Schurch V Dietz J Sonksen S Stiens D Bodner LA Wuermser J-J Wyndaele 周谋望 刘楠 S Charlifue | 2010 | 中华物理医学与康复杂志2010，32，4： | 2 |
| 4 | Flocytometric characterization of cells of differing densities isolated from human term placentae and enrichment of villous trophoblast cells显示文摘 | MS Manoussaka DJ Jackson RJ Lock | 2005 | Placenta2005，26，： | 1 |
| 5 | Hepatic rdiation injury in rat显示文摘 | Geraci JP Mariano MS Jackson KL | 1991 | Radiat Res1991，125，： | 1 |
| 6 | Evaluation of Simplified Procedures for Retrieval of Land Surface Reflectance Factors from Satellite Sensor显示文摘 | Moran MS Jackson JD Slater PN | 1992 | Remote Sensing Environ1992，41，： | 1 |
| 7 | Pilot study of an objective structured clinical examination (' the Six Pack') for evaluation clinical competencies显示文摘 | Franzese CB Jackson MS | 2008 | Otolaryngology-Head and Neck Surgery2008，138，： | 1 |
| 8 | Perinatal mortality in twins and singletons matched for testational age at delivery at ≥ 30 weeks显示文摘 | Kilpatrick SJ Jackson R Croughan-Minihane MS | 1996 | Am J Obstet Gynecol1996，174，1： | 1 |
| 9 | Differing risk factorprofiles of ischemic stroke subtypes : evidence for a distinct lacunararteriopathy? 显示文摘 | Jackson CA Hutchison A Dennis MS | 2010 | Stroke2010，41，4： | 1 |
| 10 | Oral carriage of staphylococci in patients with rheumatoid arthritis 显示文摘 | Jackson MS Bagg J Gupta MN | 1999 | Rheumatology (Oxford)1999，38，6： | 1 |
| 11 | Severe respiratory illness associated with enterovirus D68--Missouri and Illinois, 2014 显示文摘 | Midgley CM Jackson MA Selvarangan RA Obringer E Johnson D Giles BL Patel A Echols F Oberste MS Nix WA Watson JT Gerber SI | 2014 | MMWR Morb Mortal Wkly Rep2014，63，36： | 1 |
| 12 | De novo gene conversion in the RCA gene cluster(1q32)causes mutations in complement factor H associated with atypical hemolytic uremic syndrome显示文摘 | Heinen S Sanchez-Corral P Jackson MS | 2006 | Hum Mutat2006，27，3： | 1 |
| 13 | Enhancement of antitumor activity of docetaxel by celecoxib in lung tumors显示文摘 | Shaik MS Chatterjee A Jackson T | 2006 | Int J Cancer2006，118，2： | 1 |
| 14 | Magnet-ic resonance spectroscopy monitoring of mitogen-activated proteinkinase signaling inhibition显示文摘 | Mounia Beloueche-Babari L Jackson E Nada MS | 2005 | Cancer Res2005，65，8： | 1 |
| 15 | Differing risk factor profiles of ischemic stroke subtypes: evidence for a distinct lacunar arteriopathy? 显示文摘 | Jackson CA Hutchison A Dennis MS | 2010 | Stroke2010，41，4： | 1 |
| 16 | Differing risk factor pro?les of ischemic stroke subtypes显示文摘 | Jackson CA Hutchison A Dennis MS | | 0，，04： | 1 |
| 17 | Effects of carbohydrate feeling on fatigue during intermittent -intensity exercise in males and females 显示文摘 | DAVIS JM BROADWELL MS | 1995 | Med Sci Sprots Exerc1995，27，5： | 1 |
| 18 | Subsets of memory cytotoxic T lymphocytes elicited by vaccination influence the efficiency of secondary expansion in vivo显示文摘 | Seaman MS Peyerl FW Jackson SS | 2004 | J Virol2004，78，1： | 1 |
| 19 | De novo gene conversion in the RCA gene cluster (1 q32)causes mutations in complement factor H associated with atypical hemolytic uremicsyndrome 显示文摘 | Heiuen S Sanchez-Corral P Jackson MS | 2006 | Hum Mutat2006，27，3： | 1 |
| 20 | Effects of tibial rotations on patellar tracking and patellofemoral contact areas显示文摘 | Hefzy MS Jackson WT Saddemi SR | 1992 | J Biomed Eng1992，14，： | 1 |
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