Nature Communications - 2 August 2011

Weekly Content Alert 02 August 2011 Featured image: Farris and Ryan show that female túngara frogs can group sounds with the smallest relative difference in call parameters. Latest content: Articles Journal homepage Recommend to library Web feed   Advertisement Now Live - a new multidisciplinary research journal from the publishers of Nature Online and open access, Scientific Reports provides rapid publication and high visibility of research - for all areas of science. All papers accepted for publication are technically sound, without any requirement for impact. Submit your next paper to Scientific Reports.     Latest Articles View all Articles     Iron-based cathode catalyst with enhanced power density in polymer electrolyte membrane fuel cells Eric Proietti, Frédéric Jaouen, Michel Lefèvre, Nicholas Larouche, Juan Tian, Juan Herranz and Jean-Pol Dodelet Replacing platinum in polymer-electrolyte-membrane fuel cells with iron-based catalysts could provide low-cost power generators, but often leads to low power densities. Here, a new iron-based cathode catalyst is developed with enhanced power density, volumetric activity and mass-transport properties. 02 Aug | Nat Commun 2:416 doi:10.1038/ncomms1427 (2011) Chemical sciences Catalysis  Materials science Physical chemistry Abstract | Full Text | PDF (874 kB) | Supplementary Information Local BMP receptor activation at adherens junctions in the Drosophila germline stem cell niche Marcus Michel, Isabel Raabe, Adam P. Kupinski, Raquel Pérez-Palencia and Christian Bökel Studying the physical interaction of stem cells with their niche has previously been difficult. Using a fluorescence-based reporter, Michel et al. are able to show that bone morphogenetic protein signalling occurs between Drosophila testes germline stem cells and their niche and is via adherens junctions. 02 Aug | Nat Commun 2:415 doi:10.1038/ncomms1426 (2011) Biological sciences Cell biology Developmental biology  Abstract | Full Text | PDF (2,634 kB) | Supplementary Information Regulation of MITF stability by the USP13 deubiquitinase Xiansi Zhao, Brian Fiske, Akinori Kawakami, Juying Li and David E Fisher MITF is a transcription factor required for melanocyte development, which is activated in some melanomas. Zhao and colleagues show that USP13 removes ubiquitin from MITF, stabilizes MITF protein levels and enhances colony formation, suggesting that USP13 may be a therapeutic target in melanoma. 02 Aug | Nat Commun 2:414 doi:10.1038/ncomms1421 (2011) Biological sciences Cancer  Cell biology Medical research  Molecular biology Abstract | Full Text | PDF (851 kB) | Supplementary Information Adding control to arbitrary unknown quantum operations OPEN Xiao-Qi Zhou, Timothy C. Ralph, Pruet Kalasuwan, Mian Zhang, Alberto Peruzzo, Benjamin P. Lanyon and Jeremy L. O'Brien Quantum computing has advantages over conventional computing, but the complexity of quantum algorithms creates technological challenges. Here, an architecture-independent technique, that simplifies adding control qubits to arbitrary quantum operations, is developed and demonstrated. 02 Aug | Nat Commun 2:413 doi:10.1038/ncomms1392 (2011) Physical sciences Applied physics Optical physics Abstract | Full Text | PDF (1,270 kB) Silver hake tracks changes in Northwest Atlantic circulation Janet A. Nye, Terrence M. Joyce, Young-Oh Kwon and Jason S. Link Many organisms are responding to a warming climate by shifts in spatial distribution. The poleward movement of silver hake, Merluccius bilinearis, over the last forty years is related to the position of the Gulf Stream and Atlantic meridional overturning circulation through changes in local bottom water temperature. 02 Aug | Nat Commun 2:412 doi:10.1038/ncomms1420 (2011) Earth sciences Climate science  Ecology  Oceanography Zoology Abstract | Full Text | PDF (536 kB) | Supplementary Information No extension of quantum theory can have improved predictive power OPEN Roger Colbeck and Renato Renner Quantum-mechanical predictions are generally probabilistic. Here, assuming freely chosen measurements, it is shown that enhanced predictions are not possible and, thus, randomness is inherent in quantum theory: a result that has applications in fields such as quantum cryptography. 02 Aug | Nat Commun 2:411 doi:10.1038/ncomms1416 (2011) Physical sciences Theoretical physics Abstract | Full Text | PDF (331 kB) | Supplementary Information Relative comparisons of call parameters enable auditory grouping in frogs Hamilton E. Farris and Michael J. Ryan Male túngara frogs produce overlapping mating calls, which poses a challenge for the female frog to group and assign multiple auditory signals to the correct source. Farris and Ryan shows that, like humans, the female frogs compare and group signals using the smallest relative difference in call parameters. 02 Aug | Nat Commun 2:410 doi:10.1038/ncomms1417 (2011) Biological sciences Evolution  Neuroscience Zoology Abstract | Full Text | PDF (489 kB) Advantageous grain boundaries in iron pnictide superconductors OPEN Takayoshi Katase, Yoshihiro Ishimaru, Akira Tsukamoto, Hidenori Hiramatsu, Toshio Kamiya, Keiichi Tanabe and Hideo Hosono High critical temperature superconductors could be used to produce ideal electric power lines, but the misalignment of crystalline grain boundaries reduces current density. Here, pnictide superconductors are found to be more tolerant to misaligned grain boundaries than cuprates. 02 Aug | Nat Commun 2:409 doi:10.1038/ncomms1419 (2011) Physical sciences Condensed matter  Materials science Nanotechnology Abstract | Full Text | PDF (733 kB) Structural mechanisms of DIAP1 auto-inhibition and DIAP1-mediated inhibition of drICE Xiaochun Li, Jiawei Wang and Yigong Shi The inhibitor of apoptosis protein DIAP1 exists in an auto-inhibited conformation, but the details of its molecular interactions are poorly understood. Here, crystal structures reveal the auto-inhibition mechanism of DIAP1 and show how the active form of the protein binds to the effector caspase drICE. 02 Aug | Nat Commun 2:408 doi:10.1038/ncomms1418 (2011) Biological sciences Biochemistry Biophysics  Abstract | Full Text | PDF (1,404 kB) | Supplementary Information   Nature Communications JOBS of the week Program Manager, Scientists Without Borders The New York Academy of Scientists New York, NY Web Analytics Manager NPG_US New York Postdoctoral Position in Cancer Cell Metabolism Columbia University New york, NY Integrative Oceanography Faculty Position CICESE Ensenada, B.C. México Next Generation Sequencing Analysis in Neurological and Cardiac Disorders Swansea University College of Medicine Swansea, Wales Structural Biologist Crysalin Crysalin Limited, Heyford Park, Upper Heyford, Oxfordshire, OX25 5HD EMBL Interdisciplinary Postdocs Fellowship (EIPOD) EMBL, European Molecular Biology Laboratory Hamburg and Heidelberg, Germany Postdoc in neuronal microRNA research University Marburg Marburg, Germany Programme Management Office Recruitment for Regular Researcher position Institute for Global Environmental Strategies (IGES) Hayama, Japan Prostate Cancer Scientist McGill University Health Centre Montreal, QC, Canada More Science jobs from Nature Communications EVENT Sixth Annual Frontiers of Clinical Investigation Symposium: Vascular Disease 2011 13-15.10.11 La Jolla, CA More science events from     Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. 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