Scientific Reports Physics Table of Contents e-alert: September 2012

03 September 2012      • Visit Scientific Reports • Submit your manuscript to Scientific Reports     Welcome to your Table of Contents e-alert for Scientific Reports             Online-only personal subscriptions now available to Nature Physics For only 49 USD/29 GBP/29 EUR Subscribe now!                 Physical Sciences               Evolution of Cooperation in Multiplex Networks ▶     Jesús Gómez-Gardeñes, Irene Reinares, Alex Arenas et al.     We study evolutionary game dynamics on structured populations in which individuals take part in several layers of networks of interactions simultaneously. This multiplex of …             Effect of angstrom-scale surface roughness on the self-assembly of polystyrene-polydimethylsiloxane block copolymer ▶     Shreya Kundu, Ramakrishnan Ganesan, Nikita Gaur et al.     Self-assembly of block copolymers has been identified as a potential candidate for high density fabrication of nanostructures. However, the factors affecting its reliability and …             Swelling transition of a clay induced by heating ▶     E. L. Hansen, H. Hemmen, D. M. Fonseca et al.     Clays are of paramount importance for soil stability, but also in applications ranging from oil recovery to composites and hydrogels. Generically, clays are divided into two …             Hydrogen Bond Nanoscale Networks Showing Switchable Transport Performance ▶     Yong Long, Jun-feng Hui, Peng-peng Wang et al.     Hydrogen bond is a typical noncovalent bond with its strength only one-tenth of a general covalent bond. Because of its easiness to fracture and re-formation, materials based on …             Transition in the Equilibrium Distribution Function of Relativistic Particles ▶     M. Mendoza, N. A. M. Araújo, S. Succi et al.     We analyze a transition from single peaked to bimodal velocity distribution in a relativistic fluid under increasing temperature, in contrast with a non-relativistic gas, where …             Wet-spinning assembly of continuous, neat, and macroscopic graphene fibers ▶     Huai-Ping Cong, Xiao-Chen Ren, Ping Wang et al.     Graphene is now the most attractive carbon-based material. Integration of 2D graphene sheets into macroscopic architectures such as fibers illuminates the direction to translate …             Pf155/RESA protein influences the dynamic microcirculatory behavior of ring-stage Plasmodium falciparum infected red blood cells ▶     Monica Diez-Silva, YongKeun Park, Sha Huang et al.     Proteins exported by Plasmodium falciparum to the red blood cell (RBC) membrane modify the structural properties of the parasitized RBC (Pf-RBC). Although quasi-static single cell …             Optical properties of in-vitro biomineralised silica ▶     Alessandro Polini, Stefano Pagliara, Andrea Camposeo et al.     Silicon is the second most common element on the Earth's crust and its oxide (SiO2) the most abundant mineral. Silica and silicates are widely used in medicine and industry as …             X-ray imaging of tumor growth in live mice by detecting gold-nanoparticle-loaded cells ▶     Chia-Chi Chien, Hsiang-Hsin Chen, Sheng-Feng Lai et al.     We show that sufficient concentrations of gold nanoparticles produced by an original synthesis method in EMT-6 and CT-26 cancer cells make it possible to detect the presence, …             Predicting effects of structural stress in a genome-reduced model bacterial metabolism ▶     Oriol Güell, Francesc Sagués, M. Ángeles Serrano     Mycoplasma pneumoniae is a human pathogen recently proposed as a genome-reduced model for bacterial systems biology. Here, we study the response of its metabolic network to …             Quantum Navigation and Ranking in Complex Networks ▶     Eduardo Sánchez-Burillo, Jordi Duch, Jesús Gómez-Gardeñes et al.     Complex networks are formal frameworks capturing the interdependencies between the elements of large systems and databases. This formalism allows to use network navigation methods …             Fullerene nanowires as a versatile platform for organic electronics ▶     Yuta Maeyoshi, Akinori Saeki, Shotaro Suwa et al.     The development of organic semiconducting nanowires that act as charge carrier transport pathways in flexible and lightweight nanoelectronics is a major scientific challenge. We …             Oxygen rocking aqueous batteries utilizing reversible topotactic oxygen insertion/extraction in iron-based perovskite oxides Ca1–xLaxFeO3−δ ▶     Mitsuhiro Hibino, Takeshi Kimura, Yosuke Suga et al.     Developments of large-scale energy storages with not only low cost and high safety but also abundant metals are significantly demanded. While lithium ion batteries are the most …             Why the bigger live longer and travel farther: animals, vehicles, rivers and the winds ▶     Adrian Bejan     Here we show that constructal-law physics unifies the design of animate and inanimate movement by requiring that larger bodies move farther, and their movement on the landscape …             Pd/C Synthesized with Citric Acid: An Efficient Catalyst for Hydrogen Generation from Formic Acid/Sodium Formate ▶     Zhi-Li Wang, Jun-Min Yan, Hong-Li Wang et al.     A highly efficient hydrogen generation from formic acid/sodium formate aqueous solution catalyzed by in situ synthesized Pd/C with citric acid has been successfully achieved at …             Spin-orbit density wave induced hidden topological order in URu2Si2 ▶     Tanmoy Das     The conventional order parameters in quantum matters are often characterized by ‘spontaneous’ broken symmetries. However, sometimes the broken symmetries may blend with the …             Two-dimensional universal conductance fluctuations and the electron-phonon interaction of surface states in Bi2Te2Se microflakes ▶     Zhaoguo Li, Taishi Chen, Haiyang Pan et al.     The universal conductance fluctuations (UCFs), one of the most important manifestations of mesoscopic electronic interference, have not yet been demonstrated for the …             Quantum Simulation of Tunneling in Small Systems ▶     Andrew T. Sornborger     A number of quantum algorithms have been performed on small quantum computers; these include Shor's prime factorization algorithm, error correction, Grover's search algorithm and …             Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9% ▶     Hui-Seon Kim, Chang-Ryul Lee, Jeong-Hyeok Im et al.     We report on solid-state mesoscopic heterojunction solar cells employing nanoparticles (NPs) of methyl ammonium lead iodide (CH3NH3)PbI3 as light harvesters. The perovskite NPs …             Fermi velocity engineering in graphene by substrate modification ▶     Choongyu Hwang, David A. Siegel, Sung-Kwan Mo et al.     The Fermi velocity, vF, is one of the key concepts in the study of a material, as it bears information on a variety of fundamental properties. Upon increasing demand on the device …             Exploring the Physical Limits of Saturation Contrast in Magnetic Resonance Imaging ▶     M. Lapert, Y. Zhang, M. A. Janich et al.     Magnetic Resonance Imaging has become nowadays an indispensable tool with applications ranging from medicine to material science. However, so far the physical limits of the …             Investigation of the non-volatile resistance change in noncentrosymmetric compounds ▶     T. S. Herng, A. Kumar, C. S. Ong et al.     Coexistence of polarization and resistance-switching characteristics in single compounds has been long inspired scientific and technological interests. Here, we report the …             Nitrogen-doped graphene: beyond single substitution and enhanced molecular sensing ▶     Ruitao Lv, Qing Li, Andrés R. Botello-Méndez et al.     Graphene is a two-dimensional network in which sp2-hybridized carbon atoms are arranged in two different triangular sub-lattices (A and B). By incorporating nitrogen atoms into …             Self-activated ultrahigh chemosensitivity of oxide thin film nanostructures for transparent sensors ▶     Hi Gyu Moon, Young-Soek Shim, Do Hong Kim et al.     One of the top design priorities for semiconductor chemical sensors is developing simple, low-cost, sensitive and reliable sensors to be built in handheld devices. However, the …             Revealing the truth about ‘trapped rainbow’ storage of light in metamaterials ▶     Sailing He, Yingran He, Yi Jin     It was claimed that the incident light can be gradually slowed down and finally trapped in a tapered metamaterial waveguide. Here we show that the energy incident from the input …             Scalable printed electronics: an organic decoder addressing ferroelectric non-volatile memory ▶     Tse Nga Ng, David E. Schwartz, Leah L. Lavery et al.     Scalable circuits of organic logic and memory are realized using all-additive printing processes. A 3-bit organic complementary decoder is fabricated and used to read and write …             Light- induced electron transfer and ATP synthesis in a carotene synthesizing insect ▶     Jean Christophe Valmalette, Aviv Dombrovsky, Pierre Brat et al.     A singular adaptive phenotype of a parthenogenetic insect species (Acyrthosiphon pisum) was selected in cold conditions and is characterized by a remarkable apparition of a …             Operational approach to open dynamics and quantifying initial correlations ▶     Kavan Modi     A central aim of physics is to describe the dynamics of physical systems. Schrödinger's equation does this for isolated quantum systems. Describing the time evolution of a quantum …             Nanoscale analysis of the effects of antibiotics and CX1 on a Pseudomonas aeruginosa multidrug-resistant strain ▶     C. Formosa, M. Grare, E. Jauvert et al.     Drug resistance is a challenge that can be addressed using nanotechnology. We focused on the resistance of the bacteria Pseudomonas aeruginosa and investigated, using Atomic Force …             Wisdom of groups promotes cooperation in evolutionary social dilemmas ▶     Attila Szolnoki, Zhen Wang, Matjaž Perc     Whether or not to change strategy depends not only on the personal success of each individual, but also on the success of others. Using this as motivation, we study the evolution …             Finding low-energy conformations of lattice protein models by quantum annealing ▶     Alejandro Perdomo-Ortiz, Neil Dickson, Marshall Drew-Brook et al.     Lattice protein folding models are a cornerstone of computational biophysics. Although these models are a coarse grained representation, they provide useful insight into the …             A direct borohydride fuel cell with a polymer fiber membrane and non-noble metal catalysts ▶     Xiaodong Yang, Yongning Liu, Sai Li et al.     Polymer electrolyte membranes (PEM) and Pt-based catalysts are two crucial components which determine the properties and price of fuel cells. Even though, PEM faces problem of …             Linear magnetoresistance in n-type silicon due to doping density fluctuations ▶     Nicholas A. Porter, Christopher H. Marrows     We report the observation of a large linear magnetoresistance in the ohmic regime in commonplace commercial n-type silicon wafer with a P dopant density of (1.4±0.1) ×1015 cm–3, …             Biphoton generation in quadratic waveguide arrays: A classical optical simulation ▶     M. Gräfe, A. S. Solntsev, R. Keil et al.     Quantum entanglement became essential in understanding the non-locality of quantum mechanics. In optics, this non-locality can be demonstrated on impressively large length scales, …             Surface engineering of nanoparticles in suspension for particle based bio-sensing ▶     Tapas Sen, Ian J. Bruce     Surface activation of nanoparticles in suspension using amino organosilane has been carried out via strict control of a particle surface ad-layer of water using a simple but …             Akt signaling-associated metabolic effects of dietary gold nanoparticles in Drosophila ▶     Bin Wang, Nan Chen, Yingliang Wei et al.     Gold nanoparticles (AuNPs) are often used as vehicles to deliver drugs or biomolecules, due to their mild effect on cell survival and proliferation. However, little is known about …             Precise and Continuous Time and Frequency Synchronisation at the 5×10-19 Accuracy Level ▶     B. Wang, C. Gao, W. L. Chen et al.     The synchronisation of time and frequency between remote locations is crucial for many important applications. Conventional time and frequency dissemination often makes use of …             Radial Photonic Crystal for detection of frequency and position of radiation sources ▶     J. Carbonell, A. Díaz-Rubio, D. Torrent et al.     Based on the concepts of artificially microstructured materials, i.e. metamaterials, we present here the first practical realization of a radial wave crystal. This type of device …             Communication activity in a social network: relation between long-term correlations and inter-event clustering ▶     Diego Rybski, Sergey V. Buldyrev, Shlomo Havlin et al.     Human communication in social networks is dominated by emergent statistical laws such as non-trivial correlations and temporal clustering. Recently, we found long-term …             Calcium signaling is gated by a mechanical threshold in three-dimensional environments ▶     Warren C. Ruder, Erica D. Pratt, Nailah Z. D. Brandy et al.     Cells interpret their mechanical environment using diverse signaling pathways that affect complex phenotypes. These pathways often interact with ubiquitous 2nd-messengers such as …             DebtRank: Too Central to Fail? Financial Networks, the FED and Systemic Risk ▶     Stefano Battiston, Michelangelo Puliga, Rahul Kaushik et al.     Systemic risk, here meant as the risk of default of a large portion of the financial system, depends on the network of financial exposures among institutions. However, there is no …             How to construct the perfect sandcastle ▶     Maryam Pakpour, Mehdi Habibi, Peder Møller et al.     Just a bit of water enables one to turn a pile of dry sand into a spectacular sandcastle. Too much water however will destabilize the material, as is seen in landslides. Here we …             The evolution of interdisciplinarity in physics research ▶     Raj Kumar Pan, Sitabhra Sinha, Kimmo Kaski et al.     Science, being a social enterprise, is subject to fragmentation into groups that focus on specialized areas or topics. Often new advances occur through cross-fertilization of …                         Scientific Reports is accepting submissions from all scientific fields. 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