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User-recommended papers allows you to suggest a paper you would like to see on Nature China. When these papers appear on our site, users may comment and vote on them. To recommend a paper please use this form. Please note that you cannot recommend a paper you have authored. The editors will reject any self-recommendations. All comments and recommendation are checked by the editors and may be edited prior to publication on the site.

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  Chemistry

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  • Structural and functional analysis of the anti-parallel strands in the lumenal loop of the major light-harvesting chlorophyll a/b complex of photosystem II (LHCIIb) by site-directed mutagenesis

    • C. Liu, Y. Zhang, D. Cao, Y. He, T. Kuang, C. Yang
      Original article citation: Journal of Biological Chemistry doi:10.1074/jbc.M705736200 (2007)

    • Categories: Chemistry and Physics
    • Recommended by : wei zeng on 11/01/2007 06:20AM GMT
      
      The light-harvesting chlorophyll (Chl) a/b binding protein of photosystem II (LHCIIb) fulfils multiple functions, such as light harvesting and energy dissipation under different illuminations. The crystal structure of LHCIIb at the near atomic resolution reveals an anti-parallel strands structure. This paper studies the structural and functional significances of this structure.
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• 4 votes

  Developmental Biology

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  • Activity-Dependent Development of Callosal Projections in the Somatosensory Cortex

    • C.-L. Wang, L. Zhang, Y. Zhou, J. Zhou, X.-J. Yang, S.-m. Duan, Z.-Q. Xiong, Y.-Q. Ding
      Original article citation: Journal of Neuroscience 27," (2007).

    • Categories: Developmental Biology, Neuroscience, and Cell & Molecular Biology
    • Recommended by : wei zeng on 11/01/2007 06:13AM GMT
      
      The corpus callosum is the largest commissural system in the mammalian brain, but the mechanisms underlying its development are not well understood. This paper reports that neuronal activity is necessary for the normal development and maintenance of callosal projections in the mouse somatosensory cortex.
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• 0 votes

  Chemistry

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  • Molecular mechanism for metal-independent production of hydroxyl radicals by hydrogen peroxide and halogenated quinones

    • B.-Z. Zhu, B. Kalyanaraman, G.-B. Jiang
      Original article citation: Proceedings of the National Academy of Sciences doi:10.1073/pnas.0704030104 (2007)

    • Categories: Chemistry, Earth & Environment, Materials, and Physics
    • Recommended by : wei zeng on 11/01/2007 06:07AM GMT
      
      The authors previously showed that hydroxyl radicals (HO•) can be produced by H2O2 and halogenated quinones independent of redox-active transition metal ions. In this paper, they described a possible molecular mechanism.
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• 1 vote

  Cell & Molecular Biology

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  • Wnt3a signaling promotes proliferation, myogenic differentiation, and migration of rat bone marrow mesenchymal stem cells

    • Yan-chang SHANG, Shu-hui WANG, Fu XIONG, Cui-ping ZHAO, Fu-ning PENG, Shan-wei FENG, Mei-shan LI, Yong LI, Cheng ZHANG
      Original article citation: Acta Pharmacologica Sinica 28," (2007).

    • Categories: Cell & Molecular Biology and Developmental Biology
    • Recommended by : Clarck Qian Liu on 10/31/2007 06:38AM GMT
      
      Authors provided solid evidences to demonstrate the effects of Wnt3a on mesenchymal stem cell proliferation, differentiation and migration. The data are clearly presented. The activation of canonical Wnt signalling pathway promoted cell proliferation, myogenic differentiation and migration, and inhibited adipogenic differentiation. Authors also analysed the gene profile during the myogenic differentiation and the possible mechanism of adipogenic inhibition.
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  Ecology & Evolution

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  • Insights into the Evolution of the Motilin/Ghrelin-Associated Family and Their Receptors

    • J. He, D. M. Irwin, Y.-p. Zhang
      Original article citation: Molecular Biology and Evolution doi:10.1093/molbev/msm161 (2007)

    • Categories: Ecology & Evolution, Genetics, Neuroscience, and Cell & Molecular Biology
    • Recommended by : yongyi shen on 09/14/2007 07:21AM GMT
      
      According to Darwinian theory, complexity evolves by a stepwise process of elaboration and optimization under natural selection. Simultaneous emergence of more than one element by mutational processes is unlikely, so this would evoke an evolutionary puzzle that how evolutionary processes assemble complex systems that depend on specific interactions among the parts. Based on phylogenetic analyses and molecular inferences, He et al. investigated the evolution of the motilin/ghrelin-associated family and their receptors, and demonstrated that the ghrelin/GHSR system has been maintained and functionally conserved from fish to mammals, whereas motilin-MLNR specificity only evolved as the result of ligand-receptor coevolution after the hormone gene duplicated. Discordance of evolutionary histories for the receptors and ligands indicates that tightly integrated systems can be assembled by combining old molecules that were previously constrained with different ancestral roles, with new ones (generated by gene duplication that represents slight structural variants of an older element). Then they proposed a model for the evolution of novelties in tightly integrated biological systems, which may provide a general explanation for how the molecular interactions critical for life’s complexity emerged in Darwinian fashion after gene duplication.
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• 1 vote

  Chemistry

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  • Pharmacokinetics of Isofraxidin in Rat Plasma after Oral Administration of the Extract of Acanthopanax senticosus Using HPLC with Solid Phase Extraction Method

    • Hui Sun, Haitao Lv, Yanmei Zhang, Xijun Wang, Kaishun Bi, Hongxin Cao
      Original article citation: Chemical and Pharmaceutical Bulletin 55," 1291 - 1295, (2007).

    • Categories: Chemistry, Clinical Medicine, and Developmental Biology
    • Recommended by : Linying Du on 09/12/2007 01:13PM GMT
      
      本文首次利用SPE-HPLC-UV法研究天然生物活性成分异秦皮啶不同形式给药后的大鼠体内的药动学行为的差异。研究结果表明，异秦皮啶单体口服给予大鼠后，仅在0.19 h表征一个强吸收峰，且体内延迟时间较短。而以刺五加标准提取物形式口服给予大鼠后，在0.31h和8.70h表征两个强吸收峰，且体内作用时间和生物利用度与单体给药相比显著提升，这或许归功于中药多成分之间的转化与协同作用。从而揭示中药给药形式的有效性和合理性，及中药作用持久的内在规律，也为中药活性的现代评价提供一个全新思路。 本文发表于日本的Chemical and Pharmaceutical Bulletin(SCI 收录)。全文见Chem. Pharm. Bull. 55(9) 1291—1295 (2007)
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• 2 votes

  Physics

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  • Development of a new chinese bra sizing system based on breast anthropometric measurements

    • R ZHENG, W YU, J FAN
      Original article citation: International Journal of Industrial Ergonomics 37," (2007).

    • Categories: Physics and Materials
    • Recommended by the Editor: Felix Cheung on 08/30/2007 03:14AM GMT
      
      The conventional bra sizing system was developed in 1935. However, women’s breast has very complex 3D geometry, and a Hong Kong study thereby propose a new bra sizing system for Chinese women.
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• 9 votes

  Physics

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  • Parameter identification of dynamical systems from time series

    • Wenwu Yu, Guanrong Chen, Jinde Cao, Jinhu Lü, Ulrich Parlitz
      Original article citation: Phys. Rev. E 75," (2007).

    • Categories: Physics
    • Recommended by : Lingling Yao on 07/28/2007 05:48AM GMT
      
      Parameter identification of dynamical systems has been a hot topic due to its great applications in communication, engineering, neural network, phaysics, and so on. In this paper, synchronization based parameter identification of dynamical systems from time series is carefully revisited. It is shown, based on rigorous theoretical analysis and concrete counterexamples, that some recent research reports on this issue are incomplete or even incorrect. A linear independence condition is pointed out, which is sufficient for such parameter identification of general dynamical systems. Therefore, the theoretical works therein can be helpful both for the future analysis methods and applications.
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• 2 votes

  Physics

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  • Generalized synchronization for delayed chaotic neural networks: a novel coupling scheme

    • Xia Huang, Jinde Cao
      Original article citation: Nonlinearity 19," (2006).

    • Categories: Physics
    • Recommended by : Jianquan LU on 07/10/2007 04:22AM GMT
      
      The topic is very interesting. The idea is also quite novel and attractive. It is worth reading and would stimulate further work by others.
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• 1 vote

  Earth & Environment

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  • Ecological anomalies in the East China Sea: Impacts of the Three Gorges Dam?

    • N JIAO, Y ZHANG, Y ZENG, W GARDNER, A MISHONOV, M RICHARDSON, N HONG, D PAN, X YAN, Y JO
      Original article citation: Water Research 41," (2007).

    • Categories: Earth & Environment
    • Recommended by : Z. Z. on 07/09/2007 11:39AM GMT
      
      This paper provided the first evidence that abrupt reduction in river discharge by manipulation beyond natural rhythm could trigger significant ecological responses in coastal waters.
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