Scientific Reports Physics Table of Contents e-alert: June 2013

03 June 2013      • Visit Scientific Reports • Submit your manuscript to Scientific Reports     Welcome to your Table of Contents e-alert for Scientific Reports                 Choose Scientific Reports for fast, efficient, open access publishing 93% of authors said they are likely or very likely to recommend Scientific Reports to their colleagues* 92% of authors would publish in Scientific Reports again* SUBMIT your paper today! *Nature Publishing Group author survey, data correct as of April 2013                 Physical Sciences               High-Quality Reduced Graphene Oxide by a Dual-Function Chemical Reduction and Healing Process ▶     Surajit Some, Youngmin Kim, Yeoheung Yoon et al.     A new chemical dual-functional reducing agent, thiophene, was used to produce high-quality reduced graphene oxide (rGO) as a result of a chemical reduction of graphene oxide (GO) …             Drastic reduction in the growth temperature of graphene on copper via enhanced London dispersion force ▶     Jin-Ho Choi, Zhancheng Li, Ping Cui et al.     London dispersion force is ubiquitous in nature, and is increasingly recognized to be an important factor in a variety of surface processes. Here we demonstrate unambiguously the …             Near-field ptychography: phase retrieval for inline holography using a structured illumination ▶     Marco Stockmar, Peter Cloetens, Irene Zanette et al.     Inline holography is a common phase-contrast imaging method which uses free-space propagation to encode the phase signal into measured intensities. However, quantitative retrieval …             ‘True’ bosonic coupling strength in strongly correlated superconductors ▶     Hideaki Iwasawa, Yoshiyuki Yoshida, Izumi Hase et al.     Clarifying the coupling between electrons and bosonic excitations (phonons or magnetic fluctuations) that mediate the formation of Cooper pairs is pivotal to understand …             Extremely high-accuracy correction of air refractive index using two-colour optical frequency combs ▶     Guanhao Wu, Mayumi Takahashi, Kaoru Arai et al.     Optical frequency combs have become an essential tool for distance metrology, showing great advantages compared with traditional laser interferometry. However, there is not yet an …             Directed self-assembly of proteins into discrete radial patterns ▶     Garima Thakur, Kovur Prashanthi, Thomas Thundat     Unlike physical patterning of materials at nanometer scale, manipulating soft matter such as biomolecules into patterns is still in its infancy. Self-assembled monolayer (SAM) with …             Probing and tuning frictional aging at the nanoscale ▶     Rosario Capozza, Itay Barel, Michael Urbakh     Time-dependent increase of frictional strength, or frictional aging, is a widely observed phenomenon both at macro and nanoscales. The frictional aging at the nanoscale may result …             Theoretical investigation of graphene-based photonic modulators ▶     Jacek Gosciniak, Dawn T. H. Tan     Integration of electronics and photonics for future applications requires an efficient conversion of electrical to optical signals. The excellent electronic and photonic …             Information dissipation as an early-warning signal for the Lehman Brothers collapse in financial time series ▶     Rick Quax, Drona Kandhai, Peter M. A. Sloot     In financial markets, participants locally optimize their profit which can result in a globally unstable state leading to a catastrophic change. The largest crash in the past …             All optical quantum control of a spin-quantum state and ultrafast transduction into an electric current ▶     K. Müller, T. Kaldewey, R. Ripszam et al.     The ability to control and exploit quantum coherence and entanglement drives research across many fields ranging from ultra-cold quantum gases to spin systems in condensed matter. …             The phase-controlled Raman effect ▶     A. A. Lanin, I. V. Fedotov, A. B. Fedotov et al.     Unlike spontaneous Raman effect, nonlinear Raman scattering generates fields with a well-defined phase, allowing Raman signals from individual scatterers to add up into a highly …             Electron beam-assisted healing of nanopores in magnesium alloys ▶     He Zheng, Yu Liu, Fan Cao et al.     Nanopore-based sensing has emerged as a promising candidate for affordable and powerful DNA sequencing technologies. Herein, we demonstrate that nanopores can be successfully …             Bright betatron X-ray radiation from a laser-driven-clustering gas target ▶     L. M. Chen, W. C. Yan, D. Z. Li et al.     Hard X-ray sources from femtosecond (fs) laser-produced plasmas, including the betatron X-rays from laser wakefield-accelerated electrons, have compact sizes, fs pulse duration …             Hierarchical Oriented Anatase TiO2 Nanostructure arrays on Flexible Substrate for Efficient Dye-sensitized Solar Cells ▶     Wu-Qiang Wu, Hua-Shang Rao, Yang-Fan Xu et al.     The vertically oriented anatase single crystalline TiO2 nanostructure arrays (TNAs) consisting of TiO2 truncated octahedrons with exposed {001} facets or hierarchical TiO2 …             A physical organogel electrolyte: characterized by in situ thermo-irreversible gelation and single-ion-predominent conduction ▶     Young-Soo Kim, Yoon-Gyo Cho, Dorj Odkhuu et al.     Electrolytes are characterized by their ionic conductivity (σi). It is desirable that overall σi results from the dominant contribution of the ions of interest (e.g. Li in lithium …             Waveguide integrated low noise NbTiN nanowire single-photon detectors with milli-Hz dark count rate ▶     Carsten Schuck, Wolfram H. P. Pernice, Hong X. Tang     Superconducting nanowire single-photon detectors are an ideal match for integrated quantum photonic circuits due to their high detection efficiency for telecom wavelength photons. …             Rice husks as a sustainable source of nanostructured silicon for high performance Li-ion battery anodes ▶     Nian Liu, Kaifu Huo, Matthew T. McDowell et al.     The recovery of useful materials from earth-abundant substances is of strategic importance for industrial processes. Despite the fact that Si is the second most abundant element …             Real-Time Imaging of Quantum Entanglement ▶     Robert Fickler, Mario Krenn, Radek Lapkiewicz et al.     Quantum Entanglement is widely regarded as one of the most prominent features of quantum mechanics and quantum information science. Although, photonic entanglement is routinely …             Ultrafine Sulfur Nanoparticles in Conducting Polymer Shell as Cathode Materials for High Performance Lithium/Sulfur Batteries ▶     Hongwei Chen, Weiling Dong, Jun Ge et al.     We report the synthesis of ultrafine S nanoparticles with diameter 10 ~ 20 nm via a membrane-assisted precipitation technique. The S nanoparticles were then coated with conducting …             Experimental Observation of Negative Effective Gravity in Water Waves ▶     Xinhua Hu, Jiong Yang, Jian Zi et al.     The gravity of Earth is responsible for the formation of water waves and usually difficult to change. Although negative effective gravity was recently predicted theoretically in …             Digital optical phase conjugation for delivering two-dimensional images through turbid media ▶     Timothy R. Hillman, Toyohiko Yamauchi, Wonshik Choi et al.     Optical transmission through complex media such as biological tissue is fundamentally limited by multiple light scattering. Precise control of the optical wavefield potentially …             On-chip time resolved detection of quantum dot emission using integrated superconducting single photon detectors ▶     G. Reithmaier, S. Lichtmannecker, T. Reichert et al.     We report the routing of quantum light emitted by self-assembled InGaAs quantum dots (QDs) into the optical modes of a GaAs ridge waveguide and its efficient detection on-chip via …             Graphene/elastomer composite-based photo-thermal nanopositioners ▶     James Loomis, Xiaoming Fan, Farhad Khosravi et al.     The addition of nanomaterials to polymers can result not only in significant material property improvements, but also assist in creating entirely new composite functionalities. By …             Enhanced performance and interfacial investigation of mineral-based composite phase change materials for thermal energy storage ▶     Chuanchang Li, Liangjie Fu, Jing Ouyang et al.     A novel mineral-based composite phase change materials (PCMs) was prepared via vacuum impregnation method assisted with microwave-acid treatment of the graphite (G) and bentonite …             Lateral displacement induced disorder in L10-FePt nanostructures by ion-implantation ▶     N. Gaur, S. Kundu, S. N. Piramanayagam et al.     Ion implantation is a promising technique for fabricating high density bit patterned media (BPM) as it may eliminate the requirement of disk planarization. However, there has not …             Graphene as an atomically thin interface for growth of vertically aligned carbon nanotubes ▶     Rahul Rao, Gugang Chen, Leela Mohana Reddy Arava et al.     Growth of vertically aligned carbon nanotube (CNT) forests is highly sensitive to the nature of the substrate. This constraint narrows the range of available materials to just a …             Transformation optics for antennas: why limit the bandwidth with metamaterials? ▶     Oscar Quevedo-Teruel, Wenxuan Tang, Rhiannon C. Mitchell-Thomas et al.     In the last decade, a technique termed transformation optics has been developed for the design of novel electromagnetic devices. This method defines the exact modification of …             DebtRank-transparency: Controlling systemic risk in financial networks ▶     Stefan Thurner, Sebastian Poledna     Nodes in a financial network, such as banks, cannot assess the true risks associated with lending to other nodes in the network, unless they have full information on the riskiness …             In vivo minimally invasive interstitial multi-functional microendoscopy ▶     Asaf Shahmoon, Shiran Aharon, Oded Kruchik et al.     Developing minimally invasive methodologies for imaging of internal organs is an emerging field in the biomedical examination research. This paper introduces a new …             Parametric Amplification and Cascaded-Nonlinearity Processes in Common Atomic System ▶     Huaibin Zheng, Xun Zhang, Zhaoyang Zhang et al.     For the first time, we study the parametric amplification process of multi-wave mixing (PA-MWM) signal and cascaded-nonlinearity process (CNP) in sodium vapors both theoretically …             Addressable and unidirectional energy transfer along a DNA three-way junction programmed by pyrrole-imidazole polyamides ▶     Wu Su, Clive R. Bagshaw, Glenn A. Burley     We describe a photonic waveguide where FRET is routed uni-directionally along a double-stranded DNA track. The efficiency of FRET is modulated by the supramolecular control of …             Temporal fractals in seabird foraging behaviour: diving through the scales of time ▶     Andrew J. J. MacIntosh, Laure Pelletier, Andre Chiaradia et al.     Animal behaviour exhibits fractal structure in space and time. Fractal properties in animal space-use have been explored extensively under the Lévy flight foraging hypothesis, but …             Low-temperature muon spin rotation studies of the monopole charges and currents in Y doped Ho2Ti2O7 ▶     L. J. Chang, M. R. Lees, G. Balakrishnan et al.     In the ground state of Ho2Ti2O7 spin ice, the disorder of the magnetic moments follows the same rules as the proton disorder in water ice. Excitations take the form of magnetic …             Non-volatile ferroelastic switching of the Verwey transition and resistivity of epitaxial Fe3O4/PMN-PT (011) ▶     Ming Liu, Jason Hoffman, Jing Wang et al.     A central goal of electronics based on correlated materials or ‘Mottronics’ is the ability to switch between distinct collective states with a control voltage. Small changes in …             The R3-carbon allotrope: a pathway towards glassy carbon under high pressure ▶     Xue Jiang, Cecilia Århammar, Peng Liu et al.     Pressure-induced bond type switching and phase transformation in glassy carbon (GC) has been simulated by means of Density Functional Theory (DFT) calculations and the Stochastic …             Three-dimensional metal-intercalated covalent organic frameworks for near-ambient energy storage ▶     Fei Gao, Zijing Ding, Sheng Meng     A new form of nanoporous material, metal intercalated covalent organic framework (MCOF) is proposed and its energy storage property revealed. Employing density functional and …             The strange flight behaviour of slowly spinning soccer balls ▶     Taketo Mizota, Kouhei Kurogi, Yuji Ohya et al.     The strange three-dimensional flight behaviour of slowly spinning soccer balls is one of the most interesting and unknown phenomenon associated with the trajectories of sports …             Controlled Scalable Synthesis of Uniform, High-Quality Monolayer and Few-layer MoS2 Films ▶     Yifei Yu, Chun Li, Yi Liu et al.     Two dimensional (2D) materials with a monolayer of atoms represent an ultimate control of material dimension in the vertical direction. Molybdenum sulfide (MoS2) monolayers, with …             Hydroxylated derivatives of dimethoxy-1,4-benzoquinone as redox switchable earth-alkaline metal ligands and radical scavengers ▶     Rubin Gulaboski, Ivan Bogeski, Valentin Mirčeski et al.     Benzoquinones (BQ) have important functions in many biological processes. In alkaline environments, BQs can be hydroxylated at quinoid ring proton positions. Very little is known …             Under-water superoleophobic Glass: Unexplored role of the surfactant-rich solvent ▶     Prashant R. Waghmare, Siddhartha Das, Sushanta K. Mitra     Preparing low energy liquid-repellant surfaces (superhydrophobic or superoleophobic) have attracted tremendous attention of late. In all these studies, the necessary liquid …             Plasmon-Enhanced Light Harvesting of Chlorophylls on Near-Percolating Silver Films via One-Photon Anti-Stokes Upconversion ▶     Ya-Lan Wang, Fan Nan, Xiao-Li Liu et al.     There exists a wealth of means of efficient utilization of solar energy in nature, with photosynthesis of chlorophylls as a prime example. Separately, artificially structured …             Complementarity of quantum discord and classically accessible information ▶     Michael Zwolak, Wojciech H. Zurek     The sum of the Holevo quantity (that bounds the capacity of quantum channels to transmit classical information about an observable) and the quantum discord (a measure of the …             Tracking single-particle dynamics via combined optical and electrical sensing ▶     Naoya Yukimoto, Makusu Tsutsui, Yuhui He et al.     While fluorescent imaging has been extensively used for single-particle tracking, temporal and spatial resolution of the wide-field microscopy technology is not satisfactory for …             Ageing dynamics of ion bombardment induced self-organization processes ▶     Oier Bikondoa, Dina Carbone, Virginie Chamard et al.     Instabilities caused during the erosion of a surface by an ion beam can lead to the formation of self-organized patterns of nanostructures. Understanding the self-organization …             Semihydrogenated BN Sheet: A Promising Visible-light Driven Photocatalyst for Water Splitting ▶     Xingxing Li, Jin Zhao, Jinlong Yang     Based on first principles calculations, we predict semihydrogenated graphitic BN (sh-BN) sheet is a potential metal-free visible-light driven photocatalyst for water splitting. …             Polyethyleneimine Incorporated Metal-Organic Frameworks Adsorbent for Highly Selective CO2 Capture ▶     Yichao Lin, Qiuju Yan, Chunlong Kong et al.     A series of polyethyleneimine (PEI) incorporated MIL-101 adsorbents with different PEI loadings were reported for the first time in the present work. Although the surface area and …             Plasmonic nanofocusing with a metallic pyramid and an integrated C-shaped aperture ▶     Nathan C. Lindquist, Timothy W. Johnson, Prashant Nagpal et al.     We demonstrate the design, fabrication and characterization of a near-field plasmonic nanofocusing probe with a hybrid tip-plus-aperture design. By combining template stripping …             Molecule-Based Water-Oxidation Catalysts (WOCs): Cluster-Size-Dependent Dye-Sensitized Polyoxometalates for Visible-Light-Driven O2 Evolution ▶     Junkuo Gao, Shaowen Cao, Qiuling Tay et al.     From atomic level to understand the cluster-size-dependant behavior of dye-sensitized photocatalysts is very important and helpful to design new photocatalytic materials. Although …             Snake velvet black: Hierarchical micro- and nanostructure enhances dark colouration in Bitis rhinoceros ▶     Marlene Spinner, Alexander Kovalev, Stanislav N. Gorb et al.     The West African Gaboon viper (Bitis rhinoceros) is a master of camouflage due to its colouration pattern. Its skin is geometrically patterned and features black spots that …             Vibration driven vehicle inspired from grass spike ▶     Suo Bai, Qi Xu, Yong Qin     Searching and detecting in some harsh environments such as collapsed buildings, pipes, small cracks are crucial for human rescue and industrial detection, military surveillance …             Citizen Science Provides Valuable Data for Monitoring Global Night Sky Luminance ▶     Christopher C. M. Kyba, Janna M. Wagner, Helga U. Kuechly et al.     The skyglow produced by artificial lights at night is one of the most dramatic anthropogenic modifications of Earth's biosphere. The GLOBE at Night citizen science project allows …             Physiologically-Relevant Modes of Membrane Interactions by the Human Antimicrobial Peptide, LL-37, Revealed by SFG Experiments ▶     Bei Ding, Lauren Soblosky, Khoi Nguyen et al.     Antimicrobial peptides (AMPs) could become the next generation antibiotic compounds which can overcome bacterial resistance by disrupting cell membranes and it is essential to …             The interaction between feedback from active galactic nuclei and supernovae ▶     C. M. Booth, Joop Schaye     Energetic feedback from supernovae (SNe) and from active galactic nuclei (AGN) are both important processes that are thought to control how much gas is able to condense into …             Controlling avalanche criticality in 2D nano arrays ▶     Y. C. Zohar, S. Yochelis, K. A. Dahmen et al.     Many physical systems respond to slowly changing external force through avalanches spanning broad range of sizes. Some systems crackle even without apparent external force, such …             Ghost Imaging without Discord ▶     Jeffrey H. Shapiro, Dheera Venkatraman, Franco N. C. Wong     Ragy and Adesso argue that quantum discord is involved in the formation of a pseudothermal ghost image. We show that quantum discord plays no role in spatial light modulator ghost …             DEVD-Based Hydrogelator Minimizes Cellular Apoptosis Induction ▶     An-Ming Tang, Wei-Juan Wang, Bin Mei et al.     Herein, we report the rational design of a DEVD-based heptapeptide hydrogelator 1 which is susceptible to caspase-3 (CASP3), and its isomeric control hydrogelator 2 with a …             Virus-based Photo-Responsive Nanowires Formed By Linking Site-Directed Mutagenesis and Chemical Reaction ▶     Murali Murugesan, Gopal Abbineni, Susan L. Nimmo et al.     Owing to the genetic flexibility and error-free bulk production, bio-nanostructures such as filamentous phage showed great potential in materials synthesis, however, their …             High domain wall velocities via spin transfer torque using vertical current injection ▶     Peter J. Metaxas, Joao Sampaio, André Chanthbouala et al.     Domain walls, nanoscale transition regions separating oppositely oriented ferromagnetic domains, have significant promise for use in spintronic devices for data storage and …             Facet-Dependent Catalytic Activity of Platinum Nanocrystals for Triiodide Reduction in Dye-Sensitized Solar Cells ▶     Bo Zhang, Dong Wang, Yu Hou et al.     Platinum (Pt) nanocrystals have demonstrated to be an effective catalyst in many heterogeneous catalytic processes. However, pioneer facets with highest activity have been …             Selective Decoration of Au Nanoparticles on Monolayer MoS2 Single Crystals ▶     Yumeng Shi, Jing-Kai Huang, Limin Jin et al.     We report a controllable wet method for effective decoration of 2-dimensional (2D) molybdenum disulfide (MoS2) layers with Au nanoparticles (NPs). Au NPs can be selectively formed …             Microscopic insight into the bilateral formation of carbon spirals from a symmetric iron core ▶     Hidetsugu Shiozawa, Alicja Bachmatiuk, Andreas Stangl et al.     Mirrored carbon-spirals have been produced from pressured ferrocene via the bilateral extrusion of the spiral pairs from an iron core. A parametric plot of the surface geometry …             Quantum data gathering ▶     Robin Blume-Kohout, Sarah Croke, Michael Zwolak     Measurement of a quantum system – the process by which an observer gathers information about it – provides a link between the quantum and classical worlds. The nature of this …             A Coarse-Grained Protein Model in a Water-like Solvent ▶     Sumit Sharma, Sanat K. Kumar, Sergey V. Buldyrev et al.     Simulations employing an explicit atom description of proteins in solvent can be computationally expensive. On the other hand, coarse-grained protein models in implicit solvent …             Polyoxometalate-based Supramolecular Gel ▶     Peilei He, Biao Xu, Huiling Liu et al.     Self-assemblyings of surfactant-encapsulated Wells-Dawson polyoxometalates (SEPs) nanobuilding blocks in butanone and esters yielded supramolecular gels showing thermo and photo …             Magnetization States of All-Oxide Spin Valves Controlled by Charge-orbital Ordering of Coupled Ferromagnets ▶     Han-Chun Wu, Oleg N. Mryasov, Mohamed Abid et al.     Charge-orbital ordering is commonly present in complex transition metal oxides and offers interesting opportunities for novel electronic devices. In this work, we demonstrate for …             Zhang-Rice physics and anomalous copper states in A-site ordered perovskites ▶     D. Meyers, Swarnakamal Mukherjee, J.-G. Cheng et al.     In low dimensional cuprates several interesting phenomena, including high Tc superconductivity, are deeply connected to electron correlations on Cu and the presence of the …             Constant Communities in Complex Networks ▶     Tanmoy Chakraborty, Sriram Srinivasan, Niloy Ganguly et al.     Identifying community structure is a fundamental problem in network analysis. Most community detection algorithms are based on optimizing a combinatorial parameter, for example …             Magnetic Characteristics of Copper Ion-Modified DNA Thin Films ▶     Sreekantha Reddy Dugasani, Namhoon Lee, Junwye Lee et al.     We developed a new method of fabricating a divalent copper ion (Cu2) modified DNA thin film on a glass substrate and studied its magnetic properties. We evaluated the coercive …             Large spin splitting of metallic surface-state bands at adsorbate-modified gold/silicon surfaces ▶     L. V. Bondarenko, D. V. Gruznev, A. A. Yakovlev et al.     Finding appropriate systems with a large spin splitting of metallic surface-state band which can be fabricated on silicon using routine technique is an essential step in combining …             Entangled communities and spatial synchronization lead to criticality in urban traffic ▶     Giovanni Petri, Paul Expert, Henrik J. Jensen et al.     Understanding the relation between patterns of human mobility and the scaling of dynamical features of urban environments is a great importance for today's society. Although recent …             No-go theorem for ground state cooling given initial system-thermal bath factorization ▶     Lian-Ao Wu, Dvira Segal, Paul Brumer     Ground-state cooling and pure state preparation of a small object that is embedded in a thermal environment is an important challenge and a highly desirable quantum technology. …             Microfluidic Chemotaxis Platform for Differentiating the Roles of Soluble and Bound Amyloid-β on Microglial Accumulation ▶     Hansang Cho, Tadafumi Hashimoto, Elisabeth Wong et al.     Progressive microglial accumulation at amyloid-β (Aβ) plaques is a well-established signature of the pathology of Alzheimer's disease, but how and why microglia accumulate in the …             Coherent control of plasmonic nanoantennas using optical eigenmodes ▶     Sebastian Kosmeier, Anna Chiara De Luca, Svetlana Zolotovskaya et al.     The last decade has seen subwavelength focusing of the electromagnetic field in the proximity of nanoplasmonic structures with various designs. However, a shared issue is the …             Direct Desktop Printed-Circuits-on-Paper Flexible Electronics ▶     Yi Zheng, Zhizhu He, Yunxia Gao et al.     There currently lacks of a way to directly write out electronics, just like printing pictures on paper by an office printer. Here we show a desktop printing of flexible circuits …             Performance of thermo-optic components based on dielectric-loaded surface plasmon polariton waveguides ▶     Jacek Gosciniak, Sergey I. Bozhevolnyi     Theoretical analysis of thermo-optic (TO) modulation with dielectric-loaded surface plasmon polariton waveguide (DLSPPW) components at telecom wavelength of 1.55 μm is presented …             Quantum anti-Zeno effect without wave function reduction ▶     Qing Ai, Dazhi Xu, Su Yi et al.     We study the measurement-induced enhancement of the spontaneous decay for a two-level subsystem, where measurements are treated as couplings between the excited state and an …             Plasmon based biosensor for distinguishing different peptides mutation states ▶     Gobind Das, Manohar Chirumamilla, Andrea Toma et al.     Periodic and reproducible gold nanocuboids with various matrix dimensions and with different inter-particle gaps were fabricated by means of top-down technique. Rhodamine 6G was …             Quantifying Wikipedia Usage Patterns Before Stock Market Moves ▶     Helen Susannah Moat, Chester Curme, Adam Avakian et al.     Financial crises result from a catastrophic combination of actions. Vast stock market datasets offer us a window into some of the actions that have led to these crises. Here, we …             Acoustic-Friction Networks and the Evolution of Precursor Rupture Fronts in Laboratory Earthquakes ▶     H. O. Ghaffari, R. P. Young     The evolution of shear rupture fronts in laboratory earthquakes is analysed with the corresponding functional networks, constructed over acoustic emission friction-patterns. We …             An ab-initio Computational Method to Determine Dielectric Properties of Biological Materials ▶     Chathurika D. Abeyrathne, Malka N. Halgamuge, Peter M. Farrell et al.     Frequency dependent dielectric properties are important for understanding the structure and dynamics of biological materials. These properties can be used to study underlying …             Graphene-hemin hybrid material as effective catalyst for selective oxidation of primary C-H bond in toluene ▶     Yongjia Li, Xiaoqing Huang, Yujing Li et al.     An effective hemin catalyst on graphene support for selective oxidation of primary C-H bond in toluene is reported with an over 50% conversion rate achieved at mild conditions. …             Three-Dimensional Graphene Nano-Networks with High Quality and Mass Production Capability via Precursor-Assisted Chemical Vapor Deposition ▶     Jong-Chul Yoon, Jung-Soo Lee, Sun-I Kim et al.     We report a novel approach to synthesize chemical vapor deposition-grown three-dimensional graphene nano-networks (3D-GNs) that can be mass produced with large-area coverage. …             Sequential Path Entanglement for Quantum Metrology ▶     Xian-Min Jin, Cheng-Zhi Peng, Youjin Deng et al.     Path entanglement is a key resource for quantum metrology. Using path-entangled states, the standard quantum limit can be beaten, and the Heisenberg limit can be achieved. However, …             Highly tapered pentagonal bipyramidal Au microcrystals with high index faceted corrugation: Synthesis and optical properties ▶     Gangaiah Mettela, Radha Boya, Danveer Singh et al.     Focusing light at sub-wavelength region opens up interesting applications in optical sensing and imaging beyond the diffraction limit. In the past, tapered Au wires with carved …             Distinguishing signatures of determinism and stochasticity in spiking complex systems ▶     Andrés Aragoneses, Nicolás Rubido, Jordi Tiana-Alsina et al.     We describe a method to infer signatures of determinism and stochasticity in the sequence of apparently random intensity dropouts emitted by a semiconductor laser with optical …             Tunable band gap in few-layer graphene by surface adsorption ▶     Ruge Quhe, Jianhua Ma, Zesheng Zeng et al.     There is a tunable band gap in ABC-stacked few-layer graphene (FLG) via applying a vertical electric field, but the operation of FLG-based field effect transistor (FET) requires …             Fabrication of Ultrafine Soft-Matter Arrays by Selective Contact Thermochemical Reaction ▶     X. Cai, Yue Wang, Xiaowei Wang et al.     Patterning of functional soft matters at different length scales is important for diverse research fields including cell biology, tissue engineering and medicinal science and the …             Insulating to relativistic quantum Hall transition in disordered graphene ▶     E. Pallecchi, M. Ridene, D. Kazazis et al.     Quasi-particle excitations in graphene exhibit a unique behavior concerning two key phenomena of mesoscopic physics: electron localization and the quantum Hall effect. A direct …             Detection of gas atoms with carbon nanotubes ▶     B. Arash, Q. Wang     Owning to their unparalleled sensitivity resolution, nanomechanical resonators have excellent capabilities in design of nano-sensors for gas detection. The current challenge is to …             Photonic realization of nonlocal memory effects and non-Markovian quantum probes ▶     Bi-Heng Liu, Dong-Yang Cao, Yun-Feng Huang et al.     The study of open quantum systems is important for fundamental issues of quantum physics as well as for technological applications such as quantum information processing. Recent …             Origins of power-law degree distribution in the heterogeneity of human activity in social networks ▶     Lev Muchnik, Sen Pei, Lucas C. Parra et al.     The probability distribution of number of ties of an individual in a social network follows a scale-free power-law. However, how this distribution arises has not been conclusively …             Diagnosis of schistosomiasis japonica with interfacial co-assembly-based multi-channel electrochemical immunosensor arrays ▶     Wangping Deng, Bin Xu, Haiyan Hu et al.     Schistosomiasis control remains to be an important and challenging task in the world. However, lack of quick, simple, sensitive and specific sero-diagnostic test is still a hurdle …             Discrete Event Simulation Model of Sudden Cardiac Death Predicts High Impact of Preventive Interventions ▶     Victor P. Andreev, Trajen Head, Neil Johnson et al.     Sudden Cardiac Death (SCD) is responsible for at least 180,000 deaths a year and incurs an average cost of $286 billion annually in the United States alone. Herein, we present a …             Density of States and Its Local Fluctuations Determined by Capacitance of Strongly Disordered Graphene ▶     Wei Li, Xiaolong Chen, Lin Wang et al.     We demonstrate that fluctuations of the local density of states (LDOS) in strongly disordered graphene play an important role in determining the quantum capacitance of the …             High Performance Fe- and N- Doped Carbon Catalyst with Graphene Structure for Oxygen Reduction ▶     Hongliang Peng, Zaiyong Mo, Shijun Liao et al.     Proton exchange membrane fuel cells are promising candidates for a clean and efficient energy conversion in the future, the development of carbon based inexpensive non-precious …             Remarkably Durable High Temperature Polymer Electrolyte Fuel Cell Based on Poly(vinylphosphonic acid)-doped Polybenzimidazole ▶     Mohamed R. Berber, Tsuyohiko Fujigaya, Kazunari Sasaki et al.     Low durability of polymer electrolyte fuel cell (PEFC) is a major drawback that should be solved. Recent studies have revealed that leaching of liquid phosphoric acid (PA) from …             Tailoring terahertz plasmons with silver nanorod arrays ▶     Wei Cao, Chunyuan Song, Thomas E. Lanier et al.     Plasmonic materials that strongly interact with light are ideal candidates for designing subwavelength photonic devices. We report on direct coupling of terahertz waves in …             Single-atom Catalysis Using Pt/Graphene Achieved through Atomic Layer Deposition ▶     Shuhui Sun, Gaixia Zhang, Nicolas Gauquelin et al.     Platinum-nanoparticle-based catalysts are widely used in many important chemical processes and automobile industries. Downsizing catalyst nanoparticles to single atoms is highly …             Observation of mesenteric microcirculatory disturbance in rat by laser oblique scanning optical microscopy ▶     Yichen Ding, Yu Zhang, Tong Peng et al.     Ischemia-reperfusion (I/R) injury model has been widely applied to the study of microcirculation disturbance. In this work, we used laser oblique scanning optical microscopy …             Antiproton induced DNA damage: proton like in flight, carbon-ion like near rest ▶     J. N. Kavanagh, F. J. Currell, D. J. Timson et al.     Biological validation of new radiotherapy modalities is essential to understand their therapeutic potential. Antiprotons have been proposed for cancer therapy due to enhanced dose …             Spatially-resolved rotational microrheology with an optically-trapped sphere ▶     James S. Bennett, Lachlan J. Gibson, Rory M. Kelly et al.     We have developed a microrheometer, based on optical tweezers, in which hydrodynamic coupling between the probe and fluid boundaries is dramatically reduced relative to existing …             Relationship between container ship underwater noise levels and ship design, operational and oceanographic conditions ▶     Megan F. McKenna, Sean M. Wiggins, John A. Hildebrand     Low-frequency ocean ambient noise is dominated by noise from commercial ships, yet understanding how individual ships contribute deserves further investigation. This study …                         Scientific Reports is accepting submissions from all scientific fields. Submit your manuscript now.               • Careers & Jobs           naturejobs.com Science jobs of the week       Research Assistant     University of Oxford            PhD Researcher     KU Leuven            Post-doctoral fellow     University of Cincinnati            Post Doctoral Fellow     Indiana University School of Medicine (IUSM)            Ph.D. scholarships     PIER Helmholtz Graduate School            PhD Student     Lodz University of Technology            Postdoctoral Research Associate     Imperial College London - Department of Medicine            Junior Research Group Leaders     Leibniz Institute of Polymer Research Dresden (IPF)            Clinical Research Coordinator     University of Wisconsin - Madison School of Medicine and Public Health            Research Fellow     UNIVERSITY OF SUSSEX          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         Physics of Emergent Behaviour: From single cells to groups of individuals     24 June 2013 Brighton, 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.