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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 | Backward Propagation of Otoacoustic Emissions显示文摘Normal mammalian ears not only detect but also generate sounds. The ear-generated sounds, i.e., otoacoustic emissions (OAEs), can be measured in the external ear canal using a tiny sensitive microphone. In spite of wide applications of OAEs in diagnosis of hearing disorders and in studies of cochlear functions, the question of how the cochlea emits sounds remains unclear. The current dominating theory is that the OAE reaches the cochlear base through a backward traveling wave. However, recently published works, including experimental data on the spatial pattern of basilar membrane vibrations at the emission frequency, demonstrated only forward traveling waves and no signs of backward traveling waves. These new findings indicate that the cochlea emits sounds through cochlear fluids as compression waves rather than through the basilar membrane as backward traveling waves. This article reviews different mechanisms of the backward propagation of OAEs and summarizes recent experimental results. | HE Wenxuan,1, 2 REN Tianying,1, 21. Oregon Hearing Research Center, Department of Otolaryngology and Head & Neck Surgery, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, NRC04, Portland, Oregon 97239 USA 2. School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061 China | 2006 | Journal of Otology2006，1，1： | 4 |
| 4 | WTO Dispute Procedures, Standard of Review, and Deference to National Govern-ments 显示文摘 | Steven P Croley and John H Jackson | 1996 | American Journal of International Law1996，，： | 1 |
| 5 | Have we reached peak CCS?显示文摘 | Geoff Inman-Bamber Phillip Jackson Graham Bonnett and Terry Morgan | 2011 | international Sugar Journal2011，113，11： | 1 |
| 6 | Directional diversity of HF signals received over high latitude paths, and the possibility of improved data throughput by means of spatial filtering 显示文摘 | E M Warrington C A Jackson and B Lundborg | 2000 | IEE Proe Microwave Antennas Propagation2000，147，6： | 1 |
| 7 | Destination life cycle:The Isle of Man case study显示文摘 | Cooper C and Jackson S | 1989 | Annals of Tourism Research1989，16，3： | 1 |
| 8 | Minimizing the risk of reporting false positives in large-scale RNAi screens显示文摘 | Echeverri C.J Beachy P.A Baum B Boutros M Buchholz F Chanda K K Downward J Ellenberg J Fraser A.G Hacohen N Hahn W.C Jackson A.L Kiger A Linsley P.S Lum L Ma Y Mathey-Prevot B Root D.E Sabatini D.M Taipale J Perrimon N and Bernards R | | 0，，： | 1 |
| 9 | Human 14-3-3 protein:radioimmunoassay,tissue distribution,and cerebrospinal fluid levels in patients with neurological disorders显示文摘 | Boston P F Jackson P and Thompson R J | 1982 | J Neurochem1982，38，： | 1 |
| 10 | Corporate social responsibility in Western Europe: An institutional mirror or substitute? 显示文摘 | Jackson G and Apostolakou A | 2010 | Journal of Business Ethics2010，94，3： | 1 |
| 11 | More on the hierarchy of propositions, exploring the distinction between explanations and propositions 显示文摘 | Evett W Jackson G and Lambert A | 2000 | Science and Justice2000，40，： | 1 |
| 12 | Estimating evaporation: a technique adaptable to remote sensing 显示文摘 | Idso S B Jackson R D and Reginato R J | 1975 | Science1975，189，： | 1 |
| 13 | Control procedures for residuals associated with principal component analysis 显示文摘 | J E Jackson and G Mudholkar | 1979 | Technometrics1979，21，3： | 1 |
| 14 | Accounting Fundamental and CEO Bonus Compensation显示文摘 | S Jackson T Lopez and A Reitenga 2008 | 2008 | Journal of Accounting and Public Policy2008，27，5： | 1 |
| 15 | Analysis and interpretation of factors which contribute to efficiency of nitrogen utilization显示文摘 | Moll R H Kamprath E J and Jackson W A | 1982 | Agron J1982，74，： | 1 |
| 16 | Reactive species mechanisms of cellular hypoxia -reoxygenation injury 显示文摘 | C Li and RM Jackson | 2002 | Am J Physiol Cell Physiol2002，282，2： | 1 |
| 17 | Aryltetralin lignans from Podophyllum hexandrum and Podophyllum peltatum显示文摘 | Jackson D E and Dewick P M | 1984 | Phytochemistry1984，23，： | 1 |
| 18 | The cross-national diversity of corporate governance: Dimensions and determinants显示文摘 | Aguilera V and Jackson G | 2003 | Aca- demy of management review2003，28，3： | 1 |
| 19 | 显示文摘 | Xie D Y Jackson L A Cooper J D Molecular and biochemical analysis of two eDNA clones enco- ding dihydroflavonol-4-reductase from Medicago truncatula | 2004 | Plant Physiol2004，134，3： | 1 |
| 20 | Achieving quality in social reporting:the role of surveys in stakeholder consultation显示文摘 | Charles Jackson and Torben Bundgard | 2002 | Business Ethics:A European Review2002，11，3： | 1 |
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