Scientific Reports Physics Table of Contents e-alert: January 2014

If you are unable to see the message below, click here to view.

02 January 2014      • Visit Scientific Reports • Submit your manuscript to Scientific Reports     Welcome to your Table of Contents e-alert for Scientific Reports         Frontiers in Astronomy and Space Sciences is a new, open access journal launching in early 2014! As a journal driven and directed by working scientists, for working scientists, Frontiers in Astronomy and Space Sciences will be your portal to our open access publishing platform and research network, allowing you to connect and collaborate with researchers across the globe. Follow us on Facebook for more information or email us if you have any questions           Physical Sciences               ERRATUM: Non-volatile ferroelastic switching of the Verwey transition and resistivity of epitaxial Fe3O4/PMN-PT (011) ▶     Ming Liu, Jason Hoffman, Jing Wang et al.                 Quantifying the Relationship Between Financial News and the Stock Market ▶     Merve Alanyali, Helen Susannah Moat, Tobias Preis     The complex behavior of financial markets emerges from decisions made by many traders. Here, we exploit a large corpus of daily print issues of the Financial Times from 2nd …             11 nm hard X-ray focus from a large-aperture multilayer Laue lens ▶     Xiaojing Huang, Hanfei Yan, Evgeny Nazaretski et al.     The focusing performance of a multilayer Laue lens (MLL) with 43.4 μm aperture, 4 nm finest zone width and 4.2 mm focal length at 12 keV was characterized with X-rays using …             Hierarchical Nanocomposites of Polyaniline Nanowire Arrays on Reduced Graphene Oxide Sheets for Supercapacitors ▶     Li Wang, Yinjian Ye, Xingping Lu et al.     Here we reported a novel route to synthesize a hierarchical nanocomposite (PANI-frGO) of polyaniline (PANI) nanowire arrays covalently bonded on reduced graphene oxide (rGO). In …             An estimation of molecular dynamic behaviour in a liquid using core-loss spectroscopy ▶     Yoshiki Matsui, Koichiro Seki, Akihide Hibara et al.     We report an effective approach for estimating the dynamic behaviour of molecules in liquid from their core-loss spectra by combining molecular dynamics simulations and …             Wide range tuning of resonant frequency for a vortex core in a regular triangle magnet ▶     Satoshi Yakata, Terumitsu Tanaka, Kohei Kiseki et al.     A magnetic vortex structure stabilized in a micron or nano-sized ferromagnetic disk has a strong potential as a unit cell for spin-based nano-electronic devices because of …             Construction of Self-Supported Three–Dimensional TiO2 Sheeted Networks with Enhanced Photocatalytic Activity ▶     Xuan Zhang, Chao Hu, Hua Bai et al.     The degradation of toxic gases and liquids using a catalyst and solar energy is an ideal method, compared with landfill and combustion methods. The search for active semiconductor …             Overlapped optics induced perfect coherent effects ▶     Jian Jie Li, Xiao Fei Zang, Jun Fa Mao et al.     For traditional coherent effects, two separated identical point sources can be interfered with each other only when the optical path difference is integer number of wavelengths, …             Single Domain SmCo5@Co Exchange-coupled Magnets Prepared from Core/shell Sm[Co(CN)6]·4H2O@GO Particles: A Novel Chemical Approach ▶     Ce Yang, Lihui Jia, Shouguo Wang et al.     SmCo5 based magnets with smaller size and larger maximum energy product have been long desired in various fields such as renewable energy technology, electronic industry and …             Unveiling the gating mechanism of ECF Transporter RibU ▶     Jianing Song, Changge Ji, John Z. H. Zhang     Energy-coupling factor (ECF) transporters are responsible for uptake of micronutrients in prokaryotes. The recently reported crystal structure of an ECF transporter Rib provided a …             Computational Assay of H7N9 Influenza Neuraminidase Reveals R292K Mutation Reduces Drug Binding Affinity ▶     Christopher J. Woods, Maturos Malaisree, Ben Long et al.     The emergence of a novel H7N9 avian influenza that infects humans is a serious cause for concern. Of the genome sequences of H7N9 neuraminidase available, one contains a …             Vacuum Rabi Splitting of Exciton–Polariton Emission in an AlN Film ▶     Kongyi Li, Weiying Wang, Zhanghai Chen et al.     The vacuum Rabi splitting of exciton–polariton emission is observed in cathodoluminescence (CL) and photoluminescence spectra of an AlN epitaxial film. Atomic force microscopy and …             Extreme Extensibility of Copper Foil under Compound Forming Conditions ▶     Qingbo Yu, Xianghua Liu, Delin Tang     A copper foil with an extreme extensibility up to 43,684% was obtained without any intermediate annealing by means of asynchronous rolling with high tension. It was found that …             Viscous Fingering and Dendritic Growth of Surface Crystallized Sr2TiSi2O8 Fresnoite ▶     Wolfgang Wisniewski, Marek Patschger, Christian Rüssel     During the quenching of a melt with the composition 2SrO·TiO2·2.75SiO2, cubic SrTiO3- and tetragonal Sr2TiSi2O8-crystals are formed at the surface. Subsequent crystal growth leads …             On phase behavior and dynamical signatures of charged colloidal platelets ▶     Sara Jabbari-Farouji, Jean-Jacques Weis, Patrick Davidson et al.     Charged platelet suspensions, such as swelling clays, disc-like mineral crystallites or exfoliated nanosheets are ubiquitous in nature. Their phase behaviours are nevertheless …             Ion concentration polarization-based continuous separation device using electrical repulsion in the depletion region ▶     Hyungkook Jeon, Horim Lee, Kwan Hyoung Kang et al.     We proposed a novel separation method, which is the first report using ion concentration polarization (ICP) to separate particles continuously. We analyzed the electrical forces …             Tunable single-photon frequency conversion in a Sagnac interferometer ▶     Wei-Bin Yan, Jin-Feng Huang, Heng Fan     Quantum information carriers like photons might be manipulated, stored and transmitted in different quantum systems. It is important to integrate those systems efficiently. The …             Teleporting photonic qudits using multimode quantum scissors ▶     Sandeep K. Goyal, Thomas Konrad     Teleportation plays an important role in the communication of quantum information between the nodes of a quantum network and is viewed as an essential ingredient for long-distance …             Stem cells catalyze cartilage formation by neonatal articular chondrocytes in 3D biomimetic hydrogels ▶     Janice H. Lai, Glen Kajiyama, Robert Lane Smith et al.     Cartilage loss is a leading cause of disability among adults and effective therapy remains elusive. Neonatal chondrocytes (NChons) are an attractive allogeneic cell source for …             Ultracompact (3 μm) silicon slow-light optical modulator ▶     Aron Opheij, Nir Rotenberg, Daryl M. Beggs et al.     Wavelength-scale optical modulators are essential building blocks for future on-chip optical interconnects. Any modulator design is a trade-off between bandwidth, size and …             Shape-controlled synthesis of nanocarbons through direct conversion of carbon dioxide ▶     Haitao Zhang, Xiong Zhang, Xianzhong Sun et al.     Morphology control of carbon-based nanomaterials (nanocarbons) is critical to practical applications because their physical and chemical properties are highly shape-dependent. The …             Physical key-protected one-time pad ▶     Roarke Horstmeyer, Benjamin Judkewitz, Ivo M. Vellekoop et al.     We describe an encrypted communication principle that forms a secure link between two parties without electronically saving either of their keys. Instead, random cryptographic …             Ultrathin Co3O4 nanosheet arrays with high supercapacitive performance ▶     Qiu Yang, Zhiyi Lu, Xiaoming Sun et al.     Constructing nanostructures with desirable morphology and size is a critical issue for pursuing high performance electrode materials. Ultrathin Co3O4 nanosheet arrays, which are …             Functional multi-band THz meta-foils ▶     Jianfeng Wu, Herbert O. Moser, Su Xu et al.     In this paper, we present the first experimental demonstration of double- and triple-band negative refraction index meta-foils in the terahertz (THz) region. Multi-band meta-foils …             Nd3+ Sensitized Up/Down Converting Dual-Mode Nanomaterials for Efficient In-vitro and In-vivo Bioimaging Excited at 800 nm ▶     Xiaomin Li, Rui Wang, Fan Zhang et al.     Core/shell1/shell2/shell3 structured NaGdF4:Nd/NaYF4/NaGdF4:Nd,Yb,Er/NaYF4 nanocrystals were well designed and synthesized, each of the parts assume respective role and work …             Two-dimensional carbon topological insulators superior to graphene ▶     Mingwen Zhao, Wenzheng Dong, Aizhu Wang     Graphene was the first material predicted to realize a topological insulator (TI), but unfortunately the gap is unobservably small due to carbon's weak spin-orbital coupling …             Highly sensitive hot electron bolometer based on disordered graphene ▶     Qi Han, Teng Gao, Rui Zhang et al.     A bolometer is a device that makes an electrical resistive response to the electromagnetic radiation resulted from a raise of temperature due to heating. The combination of the …             Narrow Energy Gap between Triplet and Singlet Excited States of Sn2+ in Borate Glass ▶     Hirokazu Masai, Yasuhiro Yamada, Yuto Suzuki et al.     Transparent inorganic luminescent materials have attracted considerable scientific and industrial attention recently because of their high chemical durability and formability. …             Direct measurement of the biphoton Wigner function through two-photon interference ▶     T. Douce, A. Eckstein, S. P. Walborn et al.     The Hong-Ou-Mandel (HOM) experiment was a benchmark in quantum optics, evidencing the non–classical nature of photon pairs, later generalized to quantum systems with either …             Volumetric CT-based segmentation of NSCLC using 3D-Slicer ▶     Emmanuel Rios Velazquez, Chintan Parmar, Mohammed Jermoumi et al.     Accurate volumetric assessment in non-small cell lung cancer (NSCLC) is critical for adequately informing treatments. In this study we assessed the clinical relevance of a …             Surface topography regulates wnt signaling through control of primary cilia structure in mesenchymal stem cells ▶     R. J. McMurray, A. K. T. Wann, C. L. Thompson et al.     The primary cilium regulates cellular signalling including influencing wnt sensitivity by sequestering β-catenin within the ciliary compartment. Topographic regulation of …             Electromagnetic limits to radiofrequency (RF) neuronal telemetry ▶     R. E. Diaz, T. Sebastian     The viability of a radiofrequency (RF) telemetry channel for reporting individual neuron activity wirelessly from an embedded antenna to an external receiver is determined. …             Understanding strong magnetostriction in Fe100−xGax alloys ▶     Hui Wang, Y. N. Zhang, R. Q. Wu et al.     Magnetostriction of ferromagnetic materials describes the change of their shape or dimension in response to the reorientation of magnetization under the influence of external …             Terahertz conductivity of topological surface states in Bi1.5Sb0.5Te1.8Se1.2 ▶     Chi Sin Tang, Bin Xia, Xingquan Zou et al.     Topological insulators are electronic materials with an insulating bulk and conducting surface. However, due to free carriers in the bulk, the properties of the metallic surface …             A novel wavelength-adjusting method in InGaN-based light-emitting diodes ▶     Zhen Deng, Yang Jiang, Ziguang Ma et al.     The pursuit of high internal quantum efficiency (IQE) for green emission spectral regime is referred as “green gap” challenge. Now researchers place their hope on the InGaN-based …             CORRIGENDUM: Super-stretchable, Transparent Carbon Nanotube-Based Capacitive Strain Sensors for Human Motion Detection ▶     Le Cai, Li Song, Pingshan Luan et al.                 CORRIGENDUM: Tunable negligible-loss energy transfer between dipolar-coupled magnetic disks by stimulated vortex gyration ▶     Hyunsung Jung, Ki-Suk Lee, Dae-Eun Jeong et al.                 Iterative Mass Spectrometry and X-Ray Crystallography to Study Ion-Trapping and Rearrangements by a Flexible Cluster ▶     Kun Zhang, Mohamedally Kurmoo, Lian-Qiang Wei et al.     An important aspect of chemical reactions involves understanding the intermediate steps from reactants to products. The iterative use of mass spectrometry and X-Ray …             Labeling Thiols on Proteins, Living Cells, and Tissues with Enhanced Emission Induced by FRET ▶     Yue Yuan, Xijun Wang, Bin Mei et al.     Using N-(2-Aminoethyl)maleimide-cysteine(StBu) (Mal-Cys) as a medium, protein thiols were converted into N-terminal cysteines. After a biocompatible condensation reaction between …             Robustness of chimera states in complex dynamical systems ▶     Nan Yao, Zi-Gang Huang, Ying-Cheng Lai et al.     The remarkable phenomenon of chimera state in systems of non-locally coupled, identical oscillators has attracted a great deal of recent theoretical and experimental interests. In …             Itinerant magnetism in doped semiconducting β-FeSi2 and CrSi2 ▶     David J. Singh, David Parker     Novel or unusual magnetism is a subject of considerable interest, particularly in metals and degenerate semiconductors. In such materials the interplay of magnetism, transport and …             Highly Efficient Plastic Crystal Ionic Conductors for Solid-state Dye-sensitized Solar Cells ▶     Daesub Hwang, Dong Young Kim, Seong Mu Jo et al.     We have developed highly efficient, ambient temperature, solid-state ionic conductors (SSICs) for dye-sensitized solar cells (DSSCs) by doping a molecular plastic crystal, …             Helium Ion Microscopy (HIM) for the imaging of biological samples at sub-nanometer resolution ▶     Matthew S. Joens, Chuong Huynh, James M. Kasuboski et al.     Scanning Electron Microscopy (SEM) has long been the standard in imaging the sub-micrometer surface ultrastructure of both hard and soft materials. In the case of biological …             Engineering New Layered Solids from Exfoliated Inorganics: a Periodically Alternating Hydrotalcite – Montmorillonite Layered Hybrid ▶     Rajesh Chalasani, Amit Gupta, Sukumaran Vasudevan     Two-dimensional (2D) nanosheets obtained by exfoliating inorganic layered crystals have emerged as a new class of materials with unique attributes. One of the critical challenges …             Fe-catalyzed growth of one-dimensional α-Si3N4 nanostructures and their cathodoluminescence properties ▶     Juntong Huang, Zhaohui Huang, Shuai Yi et al.     Preparation of nanomaterials with various morphologies and exploiting their novel physical properties are of vital importance in nanoscientific field. Similarly to the III-N …             An Ion Diffusion Method for Visualising a Solid-like Water Nanofilm ▶     Ya Wang, Zhiguang Duan, Daidi Fan     A nano-thick solid-like water film on solid surfaces plays an important role in various fields, including biology, materials science, atmospheric chemistry, catalysis and …             Defects in bilayer silica and graphene: common trends in diverse hexagonal two-dimensional systems ▶     Torbjörn Björkman, Simon Kurasch, Ossi Lehtinen et al.     By combining first-principles and classical force field calculations with aberration-corrected high-resolution transmission electron microscopy experiments, we study the …             Highly Stable Wideband Microwave Extraction by Synchronizing Widely Tunable Optoelectronic Oscillator with Optical Frequency Comb ▶     D. Hou, X. P. Xie, Y. L. Zhang et al.     Optical frequency combs (OFCs), based on mode-locked lasers (MLLs), have attracted considerable attention in many fields over recent years. Among the applications of OFCs, one of …             Silicene oxides: formation, structures and electronic properties ▶     Rong Wang, Xiaodong Pi, Zhenyi Ni et al.     Understanding the oxidation of silicon has been critical to the success of all types of silicon materials, which are the cornerstones of modern silicon technologies. For the …             Wet-spinning of PEDOT:PSS/Functionalized-SWNTs Composite: a Facile Route Toward Production of Strong and Highly Conducting Multifunctional Fibers ▶     Rouhollah Jalili, Joselito M. Razal, Gordon G. Wallace     With the aim of fabricating multifunctional fibers with enhanced mechanical properties, electrical conductivity and electrochemical performance, we develop wet-spinning of …             Hierarchical SnO2 Nanospheres: Bio-inspired Mineralization, Vulcanization, Oxidation Techniques, and the Application for NO Sensors ▶     Lei Wang, Yuejiao Chen, Jianmin Ma et al.     Controllable synthesis and surface engineering of nanomaterials are of strategic importance for tailoring their properties. Here, we demonstrate that the synthesis and surface …             Large and fast reversible Li-ion storages in Fe2O3-graphene sheet-on-sheet sandwich-like nanocomposites ▶     Jin Kan, Yong Wang     Fe2O3 nanosheets and nanoparticles are grown on graphene by simply varying reaction solvents in a facile solvothermal/hydrothermal preparation. Fe2O3 nanosheets are uniformly …             Locomotion of microspheres for super-resolution imaging ▶     Leonid A. Krivitsky, Jia Jun Wang, Zengbo Wang et al.     Super-resolution virtual imaging by micron sized transparent beads (microspheres) was recently demonstrated by Wang et al. Practical applications in microscopy require control …             One-Pot Microbial Method to Synthesize Dual-Doped Graphene and Its Use as High-Performance Electrocatalyst ▶     Peipei Guo, Fei Xiao, Qian Liu et al.     A novel strategy to synthesize nitrogen (N) and sulfur (S)-doped graphene (G) is developed through sulfate-reducing bacteria treating graphene oxide (GO). The N, S-doped G …             Mechanosensing of DNA bending in a single specific protein-DNA complex ▶     Shimin Le, Hu Chen, Peiwen Cong et al.     Many crucial biological processes are regulated by mechanical stimuli. Here, we report new findings that pico-Newton forces can drastically affect the stability of the …             Optical conductivity of nodal metals ▶     C. C. Homes, J. J. Tu, J. Li et al.     Fermi liquid theory is remarkably successful in describing the transport and optical properties of metals; at frequencies higher than the scattering rate, the optical conductivity …             Non-collinear interaction of photons with orbital angular momentum ▶     Thomas Roger, Julius J. F. Heitz, Ewan M. Wright et al.     We study the nonlinear interaction between two non-collinear light beams that carry orbital angular momentum (OAM). More specifically, two incident beams interact at an angle in a …             Enhancing thermoelectric properties of organic composites through hierarchical nanostructures ▶     Kun Zhang, Yue Zhang, Shiren Wang     Organic thermoelectric (TE) materials are very attractive due to easy processing, material abundance, and environmentally-benign characteristics, but their potential is …             Intensity of vortices: from soap bubbles to hurricanes ▶     T. Meuel, Y. L. Xiong, P. Fischer et al.     By using a half soap bubble heated from below, we obtain large isolated single vortices whose properties as well as their intensity are measured under different conditions. By …             Phase Transformation Evolution in NiTi Shape Memory Alloy under Cyclic Nanoindentation Loadings at Dissimilar Rates ▶     Abbas Amini, Chun Cheng, Qianhua Kan et al.     Hysteresis energy decreased significantly as nanocrystalline NiTi shape memory alloy was under triangular cyclic nanoindentation loadings at high rate. Jagged curves evidenced …             The simplicity of planar networks ▶     Matheus P. Viana, Emanuele Strano, Patricia Bordin et al.     Shortest paths are not always simple. In planar networks, they can be very different from those with the smallest number of turns - the simplest paths. The statistical comparison …             Quantum State Tomography via Linear Regression Estimation ▶     Bo Qi, Zhibo Hou, Li Li et al.     A simple yet efficient state reconstruction algorithm of linear regression estimation (LRE) is presented for quantum state tomography. In this method, quantum state reconstruction …             Optical investigation of the natural electron doping in thin MoS2 films deposited on dielectric substrates ▶     D. Sercombe, S. Schwarz, O. Del Pozo-Zamudio et al.     Two-dimensional (2D) compounds provide unique building blocks for novel layered devices and hybrid photonic structures. However, large surface-to-volume ratio in thin films …             The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2 ▶     Jiangchuan Huang, Jianghui Ji, Peijian Ye et al.     On 13 December 2012, Chang'e-2 conducted a successful flyby of the near-Earth asteroid 4179 Toutatis at a closest distance of 770 ± 120 meters from the asteroid's surface. The …             Spherical, cylindrical and tetrahedral symmetries; hydrogenic states at high magnetic field in Si:P ▶     R. A. Lewis, A. Bruno-Alfonso, G. V. B. de Souza et al.     Phosphorous donors in silicon have an electronic structure that mimics the hydrogen atom, albeit on a larger length, smaller energy and smaller magnetic field scale. While the …             Infrared laser pulse triggers increased singlet oxygen production in tumour cells ▶     S. G. Sokolovski, S. A. Zolotovskaya, A. Goltsov et al.     Photodynamic therapy (PDT) is a technique developed to treat the ever-increasing global incidence of cancer. This technique utilises singlet oxygen (1O2) generation via a laser …             Hierarchical Li4Ti5O12/TiO2 composite tubes with regular structural imperfection for lithium ion storage ▶     Yan-Mei Jiang, Kai-Xue Wang, Hao-Jie Zhang et al.     Hierarchical Li4Ti5O12/TiO2 tubes composed of ultrathin nanoflakes have been successfully fabricated via the calcination of the hydrothermal product of a porous amorphous TiO2 …             Magneto-transport characteristics of a 2D electron system driven to negative magneto-conductivity by microwave photoexcitation ▶     R. G. Mani, A. Kriisa     Negative diagonal magneto-conductivity/resistivity is a spectacular- and thought provoking-property of driven, far-from-equilibrium, low dimensional electronic systems. The …             Graphene oxide can induce in vitro and in vivo mutagenesis ▶     Yuanyuan Liu, Yi Luo, Jing Wu et al.     Graphene oxide (GO) has attracted enormous interests due to its extraordinary properties. Recent studies have confirmed the cytotoxicity of GO, we further investigate its …             Observation of Replacement of Carbon in Benzene with Nitrogen in a Low-Temperature Plasma ▶     Zhiping Zhang, Xiaoyun Gong, Sichun Zhang et al.     Selective activation of benzene has been mainly limited to the C-H activation. Simple replacement of one carbon in benzene with another atom remains unresolved due to the high …             A facile method to align carbon nanotubes on polymeric membrane substrate ▶     Haiyang Zhao, Zhijun Zhou, Hang Dong et al.     The alignment of carbon nanotubes (CNT) is the fundamental requirement to ensure their excellent functions but seems to be desolated in recent years. A facile method, hot-press …             Goldstone and Higgs modes of photons inside a cavity ▶     Yu Yi-Xiang, Jinwu Ye, Wu-Ming Liu     Goldstone and Higgs modes have been detected in various condensed matter, cold atom and particle physics experiments. Here, we demonstrate that the two modes can also be observed …             Entangler via electromagnetically induced transparency with an atomic ensemble ▶     Xihua Yang, Yuanyuan Zhou, Min Xiao     Quantum entanglement plays an essential role in quantum information processing and quantum networks. One of the commonly-used methods to generate multiple entangled fields is to …             Emergence of scaling in human-interest dynamics ▶     Zhi-Dan Zhao, Zimo Yang, Zike Zhang et al.     Human behaviors are often driven by human interests. Despite intense recent efforts in exploring the dynamics of human behaviors, little is known about human-interest dynamics, …             Matrix identity and tractional forces influence indirect cardiac reprogramming ▶     Yen P. Kong, Bita Carrion, Rahul K. Singh et al.     Heart regeneration through in vivo cardiac reprogramming has been demonstrated as a possible regenerative strategy. While it has been reported that cardiac reprogramming in vivo …             Spatially resolved single photon detection with a quantum sensor array ▶     A. M. Zagoskin, R. D. Wilson, M. Everitt et al.     We propose a method of resolving a spatially coherent signal, which contains on average just a single photon, against the background of local noise at the same frequency. The …             Collective behaviours: from biochemical kinetics to electronic circuits ▶     Elena Agliari, Adriano Barra, Raffaella Burioni et al.     In this work we aim to highlight a close analogy between cooperative behaviors in chemical kinetics and cybernetics; this is realized by using a common language for their …             Simple mathematical law benchmarks human confrontations ▶     Neil F. Johnson, Pablo Medina, Guannan Zhao et al.     Many high-profile societal problems involve an individual or group repeatedly attacking another – from child-parent disputes, sexual violence against women, civil unrest, violent …             The transport properties of oxygen vacancy-related polaron-like bound state in HfOx ▶     Zhongrui Wang, HongYu Yu, Haibin Su     The oxygen vacancy-related polaron-like bound state migration in HfOx accounting for the observed transport properties in the high resistance state of resistive switching is …             A Variational Method in Out-of-Equilibrium Physical Systems ▶     Mario J. Pinheiro     We propose a new variational principle for out-of-equilibrium dynamic systems that are fundamentally based on the method of Lagrange multipliers applied to the total entropy of an …             Polymorphism and magnetic properties of Li2MSiO4 (M=Fe, Mn) cathode materials ▶     Marcella Bini, Stefania Ferrari, Chiara Ferrara et al.     Transition metal-based lithium orthosilicates (Li2MSiO4, M=Fe, Ni, Co, Mn) are gaining a wide interest as cathode materials for lithium-ion batteries. These materials present a …             Enhanced thermoelectric performance of Nb-doped SrTiO3 by nano-inclusion with low thermal conductivity ▶     Ning Wang, Haijun Chen, Hongcai He et al.     Authors reported an effective path to increase the electrical conductivity while to decrease the thermal conductivity, and thus to enhance the ZT value by nano-inclusions. By this …             Sulfuric Acid Intercalated Graphite Oxide for Graphene Preparation ▶     Yanzhong Hong, Zhiyong Wang, Xianbo Jin     Graphene has shown enormous potential for innovation in various research fields. The current chemical approaches based on exfoliation of graphite via graphite oxide (GO) are …             Ion Enrichment on the Hydrophobic Carbon-based Surface in Aqueous Salt Solutions due to Cation-π Interactions ▶     Guosheng Shi, Jian Liu, Chunlei Wang et al.     By incorporating cation-π interactions to classic all-atoms force fields, we show that there is a clear enrichment of Na on a carbon-based π electron-rich surface in NaCl …             High Spin-Chern Insulators with Magnetic Order ▶     Motohiko Ezawa     As a topological insulator, the quantum Hall (QH) effect is indexed by the Chern and spin-Chern numbers and . We have only in conventional QH systems. We investigate QH effects …             Silicon nanowires: where mechanics and optics meet at the nanoscale ▶     Daniel Ramos, Eduardo Gil-Santos, Oscar Malvar et al.     Mechanical transducers based on nanowires promise revolutionary advances in biological sensing and force microscopy/spectroscopy. A crucial step is the development of simple and …             Electrical/optical dual-function redox potential transistor ▶     Shunpu Li, Wensi Wang, Ju Xu et al.     We demonstrate a new type of transistors, the electrical/optical “dual-function redox-potential transistors”, which is solution processable and environmentally stable. This device …             Injectable 3-D Fabrication of Medical Electronics at the Target Biological Tissues ▶     Chao Jin, Jie Zhang, Xiaokang Li et al.     Conventional transplantable biomedical devices generally request sophisticated surgery which however often causes big trauma and serious pain to the patients. Here, we show an …             Real-time identification of the evolution of conducting nano-filaments in TiO2 thin film ReRAM ▶     Seul Ji Song, Jun Yeong Seok, Jung Ho Yoon et al.     Unipolar resistance switching (RS) in TiO2 thin films originates from the repeated formation and rupture of the Magnéli phase conducting filaments through repeated nano-scale …             Conserved-residue mutations in Wzy affect O-antigen polymerization and Wzz-mediated chain-length regulation in Pseudomonas aeruginosa PAO1 ▶     Salim T. Islam, Steven M. Huszczynski, Timothy Nugent et al.     O antigen (O-Ag) in many bacteria is synthesized via the Wzx/Wzy-dependent pathway in which Wzy polymerizes lipid-linked O-Ag subunits to modal lengths regulated by Wzz. …             ERRATUM: Tactile Feedback Display with Spatial and Temporal Resolutions ▶     Siarhei Vishniakou, Brian W. Lewis, Xiaofan Niu et al.                 ERRATUM: Decision Maker based on Nanoscale Photo-excitation Transfer ▶     Song-Ju Kim, Makoto Naruse, Masashi Aono et al.                 Measuring memory with the order of fractional derivative ▶     Maolin Du, Zaihua Wang, Haiyan Hu     Fractional derivative has a history as long as that of classical calculus, but it is much less popular than it should be. What is the physical meaning of fractional derivative? …             Design of a structure with low incident and viewing angle dependence inspired by Morpho butterflies ▶     Wanlin Wang, Wang Zhang, Jiajun Gu et al.     Morpho butterflies are well known for their brilliant iridescent colors, which arise from periodic arrays of scales. These brilliant colors have a low angle dependence, in …             Active Anti-erosion Protection Strategy in Tamarisk (Tamarix aphylla) ▶     Zhiwu Han, Wei Yin, Junqiu Zhang et al.     Plants have numerous active protection strategies for adapting to complex and severe environments. These strategies provide endless inspiration for extending the service life of …             Quantitative metabolic imaging using endogenous fluorescence to detect stem cell differentiation ▶     Kyle P. Quinn, Gautham V. Sridharan, Rebecca S. Hayden et al.     The non-invasive high-resolution spatial mapping of cell metabolism within tissues could provide substantial advancements in assessing the efficacy of stem cell therapy and …             Ultrahigh relaxivity and safe probes of manganese oxide nanoparticles for in vivo imaging ▶     J. Xiao, X. M. Tian, C. Yang et al.     Mn-based nanoparticles (NPs) have emerged as new class of probes for magnetic resonance imaging due to the impressive contrast ability. However, the reported Mn-based NPs possess …             Control of charge transport in a semiconducting copolymer by solvent-induced long-range order ▶     Alessandro Luzio, Luigino Criante, Valerio D'Innocenzo et al.     Recent reports on high-mobility organic field-effect transistors (FETs) based on donor-acceptor semiconducting co-polymers have indicated an apparently strong deviation from the …             Excellent microwave absorption property of Graphene-coated Fe nanocomposites ▶     Xingchen Zhao, Zhengming Zhang, Liaoyu Wang et al.     Graphene has evoked extensive interests for its abundant physical properties and potential applications. It is reported that the interfacial electronic interaction between metal …             Stability of Silk and Collagen Protein Materials in Space ▶     Xiao Hu, Waseem K. Raja, Bo An et al.     Collagen and silk materials, in neat forms and as silica composites, were flown for 18 months on the International Space Station [Materials International Space Station Experiment …             CORRIGENDUM: Crystal, magnetic, and electronic structures, and properties of new BaMnPnF (Pn=As, Sb, Bi) ▶     Bayrammurad Saparov, David J. Singh, Vasile O. Garlea et al.                 New approach for structural characterization of planar sets of nanoparticles embedded into a solid matrix ▶     Dario F. Sanchez, Gabriel Marmitt, Cristiane Marin et al.     In this work we demonstrate that Medium Energy Ion Scattering (MEIS) measurements in combination with Transmission Electron Microscopy (TEM) or Grazing Incidence Small Angle X-Ray …             ERRATUM: Large, high quality single-crystals of the new Topological Kondo Insulator, SmB6 ▶     M. Ciomaga Hatnean, M. R. Lees, D. McK. Paul et al.                 BitCoin meets Google Trends and Wikipedia: Quantifying the relationship between phenomena of the Internet era ▶     Ladislav Kristoufek     Digital currencies have emerged as a new fascinating phenomenon in the financial markets. Recent events on the most popular of the digital currencies – BitCoin – have risen …             Switching suppression and enhancement of fluorescence and six-wave mixing by phase modulation ▶     Zhiguo Wang, Peng Ying, Peiying Li et al.     The conversion between enhancement and suppression in six-wave mixing (SWM) and fluorescence signals by phase modulation has demonstrated for the first time. It is observed in our …             Suppression of the two-dimensional electron gas in LaGaO3/SrTiO3 by cation intermixing ▶     S. Nazir, B. Amin, U. Schwingenschlögl     Cation intermixing at the n-type polar LaGaO3/SrTiO3 (001) interface is investigated by first principles calculations. Ti⇔Ga, Sr⇔La, and SrTi⇔LaGa intermixing are studied in …             Multiple Virtual Tunneling of Dirac Fermions in Granular Graphene ▶     Alexandre Pachoud, Manu Jaiswal, Yu Wang et al.     Graphene charge carriers behave as massless Dirac fermions, opening the exciting possibility to observe long-range virtual tunneling of electrons in a solid. In granular metals, …             Defect controlled magnetism in FeP/graphene/Ni(111) ▶     Sumanta Bhandary, Olle Eriksson, Biplab Sanyal     Spin switching of organometallic complexes by ferromagnetic surfaces is an important topic in the area of molecular nanospintronics. Moreover, graphene has been shown as a 2D …             Evidence of the two surface states of (Bi0.53Sb0.47)2Te3 films grown by van der Waals epitaxy ▶     Liang He, Xufeng Kou, Murong Lang et al.     The discovery of topological insulators (TIs) has led to numerous exciting opportunities for studying topological states of quantum physics and for exploring spintronic …             Vocal caricatures reveal signatures of speaker identity ▶     Sabrina López, Pablo Riera, María Florencia Assaneo et al.     What are the features that impersonators select to elicit a speaker's identity? We built a voice database of public figures (targets) and imitations produced by professional …             Fe2O3 Nanoparticles Wrapped in Multi-walled Carbon Nanotubes With Enhanced Lithium Storage Capability ▶     Nan Yan, Xuhui Zhou, Yan Li et al.     We have designed a novel hybrid nanostructure by coating Fe2O3 nanoparticles with multi-walled carbon nanotubes to enhance the lithium storage capability of Fe2O3. The strategy to …             Polarization enhancement and ferroelectric switching enabled by interacting magnetic structures in DyMnO3 thin films ▶     Chengliang Lu, Shuai Dong, Zhengcai Xia et al.     The mutual controls of ferroelectricity and magnetism are stepping towards practical applications proposed for quite a few promising devices in which multiferroic thin films are …             Fabrication and Characterization of Flexible and Tunable Plasmonic Nanostructures ▶     Mehmet Kahraman, Pallavi Daggumati, Ozge Kurtulus et al.     We present a novel method to fabricate flexible and tunable plasmonic nanostructures based on combination of soft lithography and nanosphere lithography, and perform a …             Silicon/copper dome-patterned electrodes for high-performance hybrid supercapacitors ▶     Xuyan Liu, Hun-Gi Jung, Sang-Ok Kim et al.     This study proposes a method for manufacturing high-performance electrode materials in which controlling the shape of the current collector and electrode material for a Li-ion …             Superconducting fluctuations in organic molecular metals enhanced by Mott criticality ▶     Moon-Sun Nam, Cécile Mézière, Patrick Batail et al.     Unconventional superconductivity typically occurs in materials in which a small change of a parameter such as bandwidth or doping leads to antiferromagnetic or Mott insulating …             P-fimbriae in the presence of anti-PapA antibodies: new insight of antibodies action against pathogens ▶     Narges Mortezaei, Bhupender Singh, Esther Bullitt et al.     Uropathogenic strains of Escherichia coli establish urinary tract infections by attaching to host epithelial cells using adhesive organelles called fimbriae. Fimbriae are …             Common Pharmacophore of Structurally Distinct Small-Molecule Inhibitors of Intracellular Retrograde Trafficking of Ribosome Inactivating Proteins ▶     Shichao Yu, Jewn Giew Park, Jennifer Nielsen Kahn et al.     We reported previously (±)-2-(5-methylthiophen-2-yl)-3-phenyl-2,3-dihydroquinazolin-4(1H)-one [(±)-Retro-2cycl] as the chemical structure of Retro-2 that showed mouse protection …                     • Careers & Jobs           naturejobs.com Science jobs of the week       Postdoc     University of Alabma, Birmingham            Postdoctoral Research Assistant     Queen Mary University of London            Research Assistant     University of Oxford            PhD Position     University of Geneva            Research Associate     King's College London            Postdoctoral Research Assistant     University of Dundee            Postdoctoral Scholar     University of Chicago            Research Assistant     Yale University School of Medicine            Postdoctoral Researcher     Harvard University            Doctoral Student     Aalto University          No matter what your career stage, student, postdoc or senior scientist, you will find articles on naturejobs.com to help guide you in your science career. Keep up-to-date with the latest sector trends, vote in our reader poll and sign-up to receive the monthly Naturejobs newsletter.           • Scientific Reportsevents Directory featured events           natureevents directory featured events         The Physics of Soft and Biological Matter     14-16 April Cambridge, UK         Natureevents Directory is the premier resource for scientists looking for the latest scientific conferences, courses, meetings and symposia. Featured across Nature Publishing Group journals and centrally at natureevents.com it is an essential reference guide to scientific events worldwide.                 Your email address is in the Scientific Reports: Physics mailing list. You have been sent this Table of Contents Alert because you have opted in to receive it. You can change or discontinue your e-mail alerts at any time, by modifying your preferences on your nature.com account at: www.nature.com/nams/svc/myaccount (You will need to log in to be recognised as a nature.com registrant). For further technical assistance, please contact our registration department For other enquiries, please contact our customer feedback department Nature Publishing Group | 75 Varick Street, 9th floor | New York | NY 10013-1917 | USA Nature Publishing Group's offices: Principal offices: London - New York - Tokyo Worldwide offices: Basingstoke - Boston - Buenos Aires - Delhi - Hong Kong - Madrid - Melbourne - Munich - Paris - San Francisco - Seoul - Washington DC Macmillan Publishers Limited is a company incorporated in England and Wales under company number 785998 and whose registered office is located at Brunel Road, Houndmills, Basingstoke, Hampshire RG21 6XS. © 2013 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.