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| | | 16 October 2012 | | | Featured image: | |  | | | Daicho et al. develop white-light glareless LEDs based on a yellow-emitting phosphor. | | | | | | |
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ePOSTER ON METABOLIC SYNDROME
Published originally in 2011, the 2012 version of the ePoster features a new organ -- the pancreas -- plus updates for the existing organs to reflect key advances of the past year.
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Sponsored by | | | | | | | Latest Articles | View all Articles | | | | | The genetic prehistory of southern Africa OPEN | | | Joseph K. Pickrell, Nick Patterson, Chiara Barbieri, Falko Berthold, Linda Gerlach, Tom Güldemann, Blesswell Kure, Sununguko Wata Mpoloka, Hirosi Nakagawa, Christfried Naumann, Mark Lipson, Po-Ru Loh, Joseph Lachance, Joanna Mountain, Carlos D. Bustamante, Bonnie Berger, Sarah A. Tishkoff, Brenna M. Henn, Mark Stoneking, David Reich and Brigitte Pakendorf | | | Hunter-gatherer populations in Africa preserve unique information about human history, but genetic sub-structures of these populations remain unclear. Using newly designed microarray and statistical methods, these authors analyse genetic compositions of southern African populations and reveal an ancient link between southern and eastern Africa. | | | 16 Oct | Nat Commun 3:1143 doi:10.1038/ncomms2140 (2012) | | | Biological sciences Genetics | | Abstract | Full Text | PDF (386 kB) |
Supplementary Information |
| Regional boreal biodiversity peaks at intermediate human disturbance | | | S.J. Mayor, J.F. Cahill Jr, F. He, P. Sólymos and S. Boutin | | | Human influence on an ecosystem generates a predictable pattern in biodiversity. In a study of boreal plant communities, Mayor et al. show that the species richness of native vascular plants fits the predicted hump-shaped relationship to human disturbance, reaching a maximum when half of the landscape is disturbed. | | | 16 Oct | Nat Commun 3:1142 doi:10.1038/ncomms2145 (2012) | | | Biological sciences Ecology | | | Plant sciences | | Abstract | Full Text | PDF (492 kB) |
Supplementary Information |
| Lfng regulates the synchronized oscillation of the mouse segmentation clock via trans-repression of Notch signalling | | | Yusuke Okubo, Takeshi Sugawara, Natsumi Abe-Koduka, Jun Kanno, Akatsuki Kimura and Yumiko Saga | | | The mouse segmentation clock regulates the periodicity of somite formation. Okubo and colleagues investigate the mechanisms underlying the synchronization of the clock in embryonic chimaeras and find that the synchronization is regulated by the protein Lfng, which represses Notch signalling in neighbouring cells. | | | 16 Oct | Nat Commun 3:1141 doi:10.1038/ncomms2133 (2012) | | | Biological sciences Developmental biology | | | | Abstract | Full Text | PDF (2,707 kB) |
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| Direct isolation and RNA-seq reveal environment-dependent properties of engrafted neural stem/progenitor cells | | | Hiromi Kumamaru, Yasuyuki Ohkawa, Hirokazu Saiwai, Hisakata Yamada, Kensuke Kubota, Kazu Kobayakawa, Koichi Akashi, Hideyuki Okano, Yukihide Iwamoto and Seiji Okada | | | Studies on neural stem and progenitor cells have shown they may be useful in treating spinal cord injuries, but the results are variable. Kumamaru et al. transplant these cells in injured spinal cords of mice, and find that their therapeutic properties are dynamically altered depending on their environment. | | | 16 Oct | Nat Commun 3:1140 doi:10.1038/ncomms2132 (2012) | | | Biological sciences Cell biology | | | Neuroscience | | | | Abstract | Full Text | PDF (2,835 kB) |
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| Bioinspired hollow semiconductor nanospheres as photosynthetic nanoparticles | | | Jianhua Sun, Jinshui Zhang, Mingwen Zhang, Markus Antonietti, Xianzhi Fu and Xinchen Wang | | | Photosynthesis occurs at the thylakoid membrane, which acts as a scaffold, precisely arranging functional proteins and electron carriers. Sun et al. synthesize hollow photosynthetic nanospheres that function as light-harvesting antennae and structured scaffolds that improve photoredox catalysis. | | | 16 Oct | Nat Commun 3:1139 doi:10.1038/ncomms2152 (2012) | | | Chemical sciences Materials science Nanotechnology | | Abstract | Full Text | PDF (884 kB) |
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| Ultra-precise insertion of functional monomers in chain-growth polymerizations OPEN | | | Mirela Zamfir and Jean-François Lutz | | | Copolymers prepared by controlled radical chain-growth polymerizations usually contain ill-defined monomer sequences. Here, successive feeds of donor and acceptor comonomers are used to control the primary structure of the synthesized copolymers with very high accuracy. | | | 16 Oct | Nat Commun 3:1138 doi:10.1038/ncomms2151 (2012) | | | Chemical sciences Materials science | | | | Abstract | Full Text | PDF (618 kB) |
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| Annotation of microsporidian genomes using transcriptional signals | | | Eric Peyretaillade, Nicolas Parisot, Valérie Polonais, Sébastien Terrat, Jérémie Denonfoux, Eric Dugat-Bony, Ivan Wawrzyniak, Corinne Biderre-Petit, Antoine Mahul, Sébastien Rimour, Olivier Gonçalves, Stéphanie Bornes, Frédéric Delbac, Brigitte Chebance, Simone Duprat, Gaëlle Samson, Michael Katinka, Jean Weissenbach, Patrick Wincker and Pierre Peyret | | | Microsporidia are widespread human parasites, but limited genome annotation has hampered efforts to understand their biology. Peyretaillade et al. use sequence motifs upstream of start codons to annotate or re-annotate microsporidian genomes and find new genes potentially involved in interactions with the host. | | | 16 Oct | Nat Commun 3:1137 doi:10.1038/ncomms2156 (2012) | | | Biological sciences Microbiology | | Abstract | Full Text | PDF (431 kB) |
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| Endocannabinoid-Goα signalling inhibits axon regeneration in Caenorhabditis elegans by antagonizing Gqα-PKC-JNK signalling OPEN | | | Strahil Iv. Pastuhov, Kota Fujiki, Paola Nix, Shuka Kanao, Michael Bastiani, Kunihiro Matsumoto and Naoki Hisamoto | | | Axon regeneration in C. elegans is positively regulated by the JNK/MAP kinase pathway. Pastuhov and colleagues identify the endocannabinoid anandamide as a negative regulator of this pathway and show that anandamide inhibits axon regeneration in mature neurons after axotomy. | | | 16 Oct | Nat Commun 3:1136 doi:10.1038/ncomms2136 (2012) | | | Biological sciences Neuroscience | | Abstract | Full Text | PDF (622 kB) |
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| A four-dimensional X-ray tomographic microscopy study of bubble growth in basaltic foam | | | Don R. Baker, Francesco Brun, Cedrick O'Shaughnessy, Lucia Mancini, Julie L. Fife and Mark Rivers | | | Changes in bubble foam structure influence magma strength. Here, Baker et al. measure bubble size and wall thickness of basaltic foams and find that basaltic magmas are most likely to fail immediately upon vesiculation, but a permeability increase within a few seconds may reduce the risk of explosive eruptions. | | | 16 Oct | Nat Commun 3:1135 doi:10.1038/ncomms2134 (2012) | | | Earth sciences Biogeochemistry | | | Geology and geophysics | | Abstract | Full Text | PDF (999 kB) |
Supplementary Information |
| Prion protein facilitates uptake of zinc into neuronal cells OPEN | | | Nicole T. Watt, David R. Taylor, Talitha L. Kerrigan, Heledd H. Griffiths, Jo V. Rushworth, Isobel J. Whitehouse and Nigel M. Hooper | | | Prion proteins are implicated in a range of neurodegenerative diseases, which are, in part, due to a disruption of metal homeostasis. Watt et al. use selective antagonists to show that prion proteins mediate zinc uptake by interacting with GluA2-lacking, GluA1-containing AMPA receptors. | | | 16 Oct | Nat Commun 3:1134 doi:10.1038/ncomms2135 (2012) | | | Biological sciences Cell biology | | | Neuroscience | | | | Abstract | Full Text | PDF (2,683 kB) |
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| Molecular reorientation of a nematic liquid crystal by thermal expansion OPEN | | | Young-Ki Kim, Bohdan Senyuk and Oleg D. Lavrentovich | | | The orientational order of nematic liquid crystals is a property that is controllable by external parameters such as electromagnetic fields and pressure gradients. Lavrentovich and co-workers demonstrate that thermal expansion can also induce orientational order that results in a flow of the liquid crystals. | | | 16 Oct | Nat Commun 3:1133 doi:10.1038/ncomms2073 (2012) | | | Physical sciences Condensed matter | | | Materials science | | | | Abstract | Full Text | PDF (988 kB) |
Supplementary Information |
| A novel phosphor for glareless white light-emitting diodes | | | Hisayoshi Daicho, Takeshi Iwasaki, Kiminori Enomoto, Yasutaka Sasaki, Yuzo Maeno, Yu Shinomiya, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata, Hiroshi Sawa, Satoru Matsuishi and Hideo Hosono | | | Light-emitting diodes are attractive sources of light used in an increasing range of applications. This study presents a novel europium-based phosphor that gives rise to a substantial reduction in the glare that often makes LEDs uncomfortable to the human eye. | | | 16 Oct | Nat Commun 3:1132 doi:10.1038/ncomms2138 (2012) | | | Physical sciences Materials science | | | Optical physics | | Abstract | Full Text | PDF (1,098 kB) |
Supplementary Information |
| Correlative infrared–electron nanoscopy reveals the local structure–conductivity relationship in zinc oxide nanowires OPEN | | | J.M. Stiegler, R. Tena-Zaera, O. Idigoras, A. Chuvilin and R. Hillenbrand | | | High-resolution characterisation techniques enable us to better understand the properties of nanoscale materials and devices. By combining electron microscopy and infrared nanoscopy, Stiegler et al. demonstrate a general approach to simultaneously probe the structural, chemical and electronic properties of a nanostructure. | | | 16 Oct | Nat Commun 3:1131 doi:10.1038/ncomms2118 (2012) | | | Physical sciences Condensed matter | | | Nanotechnology | | Abstract | Full Text | PDF (1,451 kB) |
Supplementary Information |
| Electrografting of calix[4]arenediazonium salts to form versatile robust platforms for spatially controlled surface functionalization | | | Alice Mattiuzzi, Ivan Jabin, Claire Mangeney, Clément Roux, Olivia Reinaud, Luis Santos, Jean-François Bergamini, Philippe Hapiot and Corinne Lagrost | | | The spontaneous adsorption of alkanethiols is widely utilized to fabricate functional surfaces but gives limited stability and regularity. Mattiuzzi et al. report a method that uses preorganized platforms (rigid tetrapodant calix[4]arenes), which allows further surface functionalization and spatial control. | | | 16 Oct | Nat Commun 3:1130 doi:10.1038/ncomms2121 (2012) | | | Chemical sciences Analytical chemistry | | | Physical chemistry | | | | Abstract | Full Text | PDF (1,191 kB) |
Supplementary Information |
| A universal critical density underlying the physics of electrons at the LaAlO3 /SrTiO3 interface | | | Arjun Joshua, S. Pecker, J. Ruhman, E. Altman and S. Ilani | | | When lanthanum aluminate and strontium titanate are brought together, a 2D electron gas with many interesting properties forms at the interface. Magnetotransport results obtained by Joshua et al. suggest that the behaviour of this interface is governed by a small but fundamental set of electronic bands. | | | 16 Oct | Nat Commun 3:1129 doi:10.1038/ncomms2116 (2012) | | | Physical sciences Condensed matter | | | | Abstract | Full Text | PDF (600 kB) |
Supplementary Information |
| Level statistics of disordered spin-1/2 systems and materials with localized Cooper pairs | | | Emilio Cuevas, Mikhail Feigel'man, Lev Ioffe and Marc Mezard | | | Quantum phase transitions are most commonly found to occur at zero temperature. Cuevas et al. present numerical evidence confirming that a quantum phase transition can also occur at finite temperature, provided strong disorder is present. | | | 16 Oct | Nat Commun 3:1128 doi:10.1038/ncomms2115 (2012) | | | Physical sciences Condensed matter | | | Theoretical physics | | Abstract | Full Text | PDF (467 kB) |
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