bluuebunny/crossref_metadata_2025 huggingface dataset:
Stability of the tank treading modes of erythrocytes and its dependence on cytoskeleton reference states
Authors: Peng Zhangli , Salehyar Sara , Zhu Qiang
Published: April 2015

We studied the tank treading motion of an erythrocyte (red blood cell, or RBC) in linear shear flows by using a boundary-element fluid-dynamics model coupled with a multiscale structural model of the cell. The purpose was to investigate the correlation between the reference (stress-free) state of the cytoskeleton and the cell dynamics in shear flows with relatively high capillary numbers. We discovered that there exist two distinctive modes of tank treading, mode 1 and mode 2. In mode 1 the membrane elements originating from the dimple areas keep close to the central plane, whereas in mode 2 these elements remain near the farthermost locations from the central plane. Mode 1 is also characterized by significantly higher breathing and swinging oscillations. During tank treading one mode may become unstable and switch to the other. Their stability depends on the viscosity ratio and the capillary number. At a fixed viscosity ratio, when the capillary number is increased the cell experiences sequentially a region dominated by mode 2, a mode 1/mode 2 bistable region and a region dominated by mode 1. More profoundly, these regions are highly sensitive to the reference state of the cytoskeleton. For example, compared with a cell with a biconcave reference state, a cell with a spheroidal reference state features a much smaller region dominated by mode 2. This finding may guide experiments to identify the actual reference state of these cells.
3D Elastostatic Boundary Element Analysis of thin bodies by Integral Regularizations
Authors: Shiah Y.-C.
Published: April 2015

This paper presents a regularization scheme for the nearly singular integrals used for 3D elastostatic boundary element analysis. For the regularization process, the local projection coordinates of the source point are first located via an iteration procedure. For planar elements, the boundary integrals are analytically integrated by parts to smooth the drastic fluctuations of their integrands so that the regularized forms can be numerically integrated by any conventional schemes in an usual manner. The validity of the formulations is numerically tested using the Gauss Quadrature scheme. The test shows the accuracy is satisfactory for the distance ratio (distance: Element characteristic length) falling below micro-scale. To further demonstrate our successful implementation, a numerical example is studied with verifications compared with ANSYS analysis.
A Decomposition Theorem for Immersions of Product Manifolds
Authors: Tojeiro Ruy
Published: April 2015

We introduce polar metrics on a product manifold, which have product and warped product metrics as special cases. We prove a de Rham-type theorem characterizing Riemannian manifolds that can be locally or globally decomposed as a product manifold endowed with a polar metric. For such a product manifold, our main result gives a complete description of all its isometric immersions into a space form whose second fundamental forms are adapted to its product structure in the sense that the tangent spaces to each factor are preserved by all shape operators. This is a far-reaching generalization of a basic decomposition theorem for isometric immersions of Riemannian products due to Moore as well as of its extension by Nölker to isometric immersions of warped products.
Liberalism and the Interpretive Turn: Rival Approaches or Cross-Purposes?
Authors: Choi Naomi
Published: April 2015

This paper calls attention to the interpretive, and humanist liberal, strand of thinking that is most clearly evident in the development of Charles Taylor's ideas. Recovering it makes it possible to see why the differences between Taylor and Rawls should be seen, not in terms of the erstwhile disputes between liberals and communitarians, but instead as over issues of method, and in particular about the independence or autonomy of political philosophy. Rawls and Taylor exemplify distinct modes of postanalytic liberal theorizing that emerged in the late twentieth century out of two very different responses to challenges within analytic philosophy's discursive beginnings that continue to divide the discipline to this day. Their juxtaposition, therefore, sheds light on how such methodological commitments animate normative prerogatives and generates important resources for thinking about the very powers and limits of political theory.
The Kuhning of reason: Realism, rationalism, and political decision in IR theory after Thomas Kuhn
Authors: GUILHOT NICOLAS
Published: April 2015

Beyond the initial infatuation with his work, Kuhn’sStructure of Scientific Revolutionshas had a lasting impact on the field of International Relations. The article analyses the reception of Kuhn in IR and suggests that it contributed to overcoming the ‘second debate’ by making science and realism fully compatible. More importantly, Kuhn offered a vision of science in which scientific communities operated on the basis of realist principles. This not only consolidated the academic hold of neorealism, but transformed realism into a theory of knowledge, which its critics have failed to acknowledge. This lasting transformation is analysed by looking at Kuhn’s influence on the classic studies of strategic decision-making by Graham Allison and Robert Jervis.
What drives the vital rates of secondary hemiepiphytes? A first assessment for three species of Heteropsis (Araceae) in the Colombian Amazon
Authors: Balcázar-Vargas María Paula , van Andel Tinde R. , Westers Paul , Zuidema Pieter A.
Published: April 2015

Secondary hemiepiphytes rely on other plants (hosts) to grow vertically. After germinating on the forest floor, their seedlings search a host to ascend. We recorded information on survival, growth, reproduction and vegetative propagation of three Heteropsis species, to evaluate what drives their vital rates. We measured 700 individuals of each study species between 2007 and 2009 in the southern Colombian Amazon. A gradual increase in stem length, leaf size, number of roots and plagiotropic branches was found with increasing height of Heteropsis individuals on their hosts. Survival of leafless non-climbing seedlings was very low (28% annually); increasing substantially (84–94%) once the seedling had ascended a host. The three Heteropsis species presented slow height growth rates (c. 2–8 cm y−1) with large variation, while a substantial percentage of the stems (31–62%) did not grow or dried out. Vegetative propagation in Heteropsis may act as a dispersion-propagation strategy to find a suitable host and reach the canopy again after falling. The slow growth rates suggest that Heteropsis individuals that have reached the canopy are rather old. Once plants have reached the tree crowns, their longevity is largely determined by the survival of the host tree.
Numerical analysis of history-dependent variational–hemivariational inequalities with applications to contact problems
Authors: SOFONEA MIRCEA , HAN WEIMIN , MIGÓRSKI STANISŁAW
Published: April 2015

A new class of history-dependent variational–hemivariational inequalities was recently studied in Migórski et al. (2015Nonlinear Anal. Ser. B: Real World Appl.22, 604–618). There, an existence and uniqueness result was proved and used in the study of a mathematical model which describes the contact between a viscoelastic body and an obstacle. The aim of this paper is to continue the analysis of the inequalities introduced in Migórski et al. (2015Nonlinear Anal. Ser. B: Real World Appl.22, 604–618) and to provide their numerical analysis. We start with a continuous dependence result. Then we introduce numerical schemes to solve the inequalities and derive error estimates. We apply the results to a quasistatic frictional contact problem in which the material is modelled with a viscoelastic constitutive law, the contact is given in the form of normal compliance, and friction is described with a total slip-dependent version of Coulomb's law.
Word from the editors
Authors: KOZAREVA ZORNITSA , NASTASE VIVI , MIHALCEA RADA
Published: April 2015

Graph structures naturally model connections. In natural language processing (NLP) connections are ubiquitous, on anything between small and web scale. We find them between words – as grammatical, collocation or semantic relations – contributing to the overall meaning, and maintaining the cohesive structure of the text and the discourse unity. We find them between concepts in ontologies or other knowledge repositories – since the early ages of artificial intelligence, associative or semantic networks have been proposed and used as knowledge stores, because they naturally capture the language units and relations between them, and allow for a variety of inference and reasoning processes, simulating some of the functionalities of the human mind. We find them between complete texts or web pages, and between entities in a social network, where they model relations at the web scale. Beyond the more often encountered ‘regular’ graphs, hypergraphs have also appeared in our field to model relations between more than two units.
A wideband power divider with bandpass response
Authors: Tang Cong , Lin Xianqi , Fan Yong , Song Kaijun
Published: April 2015

In this paper, a new configuration embedded with two filters and one resistor is proposed, which has the dual function of power splitting and filtering. The filter is based on stepped impedance ring resonator. All the even- and odd-mode resonant frequencies and transmission zeroes of the stepped impedance ring resonator are derived based on the even- and odd-mode analysis. Three interdigital-coupled lines are applied at the input port and output ports to achieve a bandpass response and suppress the second harmonic. For verification, a sample operating at the central frequency of 2 GHz is fabricated and tested. The measured results show the power divider has good performance on impedance matching, frequency selectivity, and isolation over the operating band.
Quantum Hall resistance standards from graphene grown by chemical vapour deposition on silicon carbide
Authors: Lafont F. , Ribeiro-Palau R. , Kazazis D. , Michon A. , Couturaud O. , Consejo C. , Chassagne T. , Zielinski M. , Portail M. , Jouault B. , Schopfer F. , Poirier W.
Published: April 2015

Replacing GaAs by graphene to realize more practical quantum Hall resistance standards (QHRS), accurate to within 10−9 in relative value, but operating at lower magnetic fields than 10 T, is an ongoing goal in metrology. To date, the required accuracy has been reported, only few times, in graphene grown on SiC by Si sublimation, under higher magnetic fields. Here, we report on a graphene device grown by chemical vapour deposition on SiC, which demonstrates such accuracies of the Hall resistance from 10 T up to 19 T at 1.4 K. This is explained by a quantum Hall effect with low dissipation, resulting from strongly localized bulk states at the magnetic length scale, over a wide magnetic field range. Our results show that graphene-based QHRS can replace their GaAs counterparts by operating in as-convenient cryomagnetic conditions, but over an extended magnetic field range. They rely on a promising hybrid and scalable growth method and a fabrication process achieving low-electron-density devices.
Radixin regulates synaptic GABAA receptor density and is essential for reversal learning and short-term memory
Authors: Hausrat Torben J. , Muhia Mary , Gerrow Kimberly , Thomas Philip , Hirdes Wiebke , Tsukita Sachiko , Heisler Frank F. , Herich Lena , Dubroqua Sylvain , Breiden Petra , Feldon Joram , Schwarz Jürgen R , Yee Benjamin K. , Smart Trevor G. , Triller Antoine , Kneussel Matthias
Published: April 2015

Neurotransmitter receptor density is a major variable in regulating synaptic strength. Receptors rapidly exchange between synapses and intracellular storage pools through endocytic recycling. In addition, lateral diffusion and confinement exchanges surface membrane receptors between synaptic and extrasynaptic sites. However, the signals that regulate this transition are currently unknown. GABAA receptors containing α5-subunits (GABAAR-α5) concentrate extrasynaptically through radixin (Rdx)-mediated anchorage at the actin cytoskeleton. Here we report a novel mechanism that regulates adjustable plasma membrane receptor pools in the control of synaptic receptor density. RhoA/ROCK signalling regulates an activity-dependent Rdx phosphorylation switch that uncouples GABAAR-α5 from its extrasynaptic anchor, thereby enriching synaptic receptor numbers. Thus, the unphosphorylated form of Rdx alters mIPSCs. Rdx gene knockout impairs reversal learning and short-term memory, and Rdx phosphorylation in wild-type mice exhibits experience-dependent changes when exposed to novel environments. Our data suggest an additional mode of synaptic plasticity, in which extrasynaptic receptor reservoirs supply synaptic GABAARs.
Evidence for carrier localization in the pseudogap state of cuprate superconductors from coherent quench experiments
Authors: Madan I. , Kurosawa T. , Toda Y. , Oda M. , Mertelj T. , Mihailovic D.
Published: April 2015

A ‘pseudogap’ was introduced by Mott to describe a state of matter that has a minimum in the density of states at the Fermi level, deep enough for states to become localized. It can arise either from Coulomb repulsion between electrons, and/or incipient charge or spin order. Here we employ ultrafast spectroscopy to study dynamical properties of the normal to pseudogap state transition in the prototype high-temperature superconductor Bi2Sr2CaCu2O8+δ. We perform a systematic temperature and doping dependence study of the pseudogap photodestruction and recovery in coherent quench experiments, revealing marked absence of critical behaviour of the elementary excitations, which implies an absence of collective electronic ordering beyond a few coherence lengths on short timescales. The data imply ultrafast carrier localization into a textured polaronic state arising from a competing Coulomb interaction and lattice strain, enhanced by a Fermi surface instability.
Fructose decreases physical activity and increases body fat without affecting hippocampal neurogenesis and learning relative to an isocaloric glucose diet
Authors: Rendeiro Catarina , Masnik Ashley M. , Mun Jonathan G. , Du Kristy , Clark Diana , Dilger Ryan N. , Dilger Anna C. , Rhodes Justin S.
Published: April 2015

Recent evidence suggests that fructose consumption is associated with weight gain, fat deposition and impaired cognitive function. However it is unclear whether the detrimental effects are caused by fructose itself or by the concurrent increase in overall energy intake. In the present study we examine the impact of a fructose diet relative to an isocaloric glucose diet in the absence of overfeeding, using a mouse model that mimics fructose intake in the top percentile of the USA population (18% energy). Following 77 days of supplementation, changes in body weight (BW), body fat, physical activity, cognitive performance and adult hippocampal neurogenesis were assessed. Despite the fact that no differences in calorie intake were observed between groups, the fructose animals displayed significantly increased BW, liver mass and fat mass in comparison to the glucose group. This was further accompanied by a significant reduction in physical activity in the fructose animals. Conversely, no differences were detected in hippocampal neurogenesis and cognitive/motor performance as measured by object recognition, fear conditioning and rotorod tasks. The present study suggests that fructoseper se, in the absence of excess energy intake, increases fat deposition and BW potentially by reducing physical activity, without impacting hippocampal neurogenesis or cognitive function.
Solution-processed transparent blue organic light-emitting diodes with graphene as the top cathode
Authors: Chang Jung-Hung , Lin Wei-Hsiang , Wang Po-Chuan , Taur Jieh-I , Ku Ting-An , Chen Wei-Ting , Yan Shiang-Jiuan , Wu Chih-I
Published: April 2015

Graphene thin films have great potential to function as transparent electrodes in organic electronic devices, due to their excellent conductivity and high transparency. Recently, organic light-emitting diodes (OLEDs)have been successfully demonstrated to possess high luminous efficiencies with p-doped graphene anodes. However, reliable methods to fabricate n-doped graphene cathodes have been lacking, which would limit the application of graphene in flexible electronics. In this paper, we demonstrate fully solution-processed OLEDs with n-type doped multilayer graphene as the top electrode. The work function and sheet resistance of graphene are modified by an aqueous process which can also transfer graphene on organic devices as the top electrodes. With n-doped graphene layers used as the top cathode, all-solution processed transparent OLEDs can be fabricated without any vacuum process.
Isolation and characterization of a native avirulent strain of Streptococcus suis serotype 2: a perspective for vaccine development
Authors: Yao Xinyue , Li Ming , Wang Jing , Wang Changjun , Hu Dan , Zheng Feng , Pan Xiuzhen , Tan Yinling , Zhao Yan , Hu Liwen , Tang Jiaqi , Hu Fuquan
Published: April 2015

Streptococcus suis, an emerging infectious pathogen, is the cause of two large-scale outbreaks of human streptococcal toxic shock syndrome in China and has attracted much attention from the scientific community. The genetic basis of its pathogenesis remains enigmatic and no effective prevention measures have been established. To better understand the virulence differentiation of S. suis and develop a promising vaccine, we isolated and sequenced a native avirulent S. suis strain (05HAS68). Animal experiments revealed that 05HAS68 is an avirulent strain and could protect piglets from the attack of virulent strains. Comparative genomics analyses demonstrated the genetic basis for the lack of virulence in 05HAS68, which is characterized by the absence of some important virulence-associated factors and the intact 89K pathogenicity island. Lack of virulence was also illustrated by reduced survival of 05HAS68 compared to a virulent strain in pig whole blood. Further investigations revealed a large-scale genomic rearrangement in 05HAS68, which was proposed to be mediated by transposase genes and/or prophages. This genomic rearrangement may have caused the genomic diversity of S. suis and resulted in biological discrepancies between 05HAS68 and highly virulent S. suis strains.
Sound Packing DNA: packing open circular DNA with low-intensity ultrasound
Authors: Park DongHee , Jung Bong-Kwang , Park Hyunjin , Lee Hyungbeen , Lee Gyudo , Park Jingam , Shin Unchul , Won Jong Ho , Jo Yong Jun , Chang Jin Woo , Lee Sangwoo , Yoon Daesung , Seo Jongbum , Kim Chul-Woo
Published: April 2015

Supercoiling DNA (folding DNA into a more compact molecule) from open circular forms requires significant bending energy. The double helix is coiled into a higher order helix form; thus it occupies a smaller footprint. Compact packing of DNA is essential to improve the efficiency of gene delivery, which has broad implications in biology and pharmaceutical research. Here we show that low-intensity pulsed ultrasound can pack open circular DNA into supercoil form. Plasmid DNA subjected to 5.4 mW/cm2intensity ultrasound showed significant (p-values <0.001) supercoiling compared to DNA without exposure to ultrasound. Radiation force induced from ultrasound and dragging force from the fluid are believed to be the main factors that cause supercoiling. This study provides the first evidence to show that low-intensity ultrasound can directly alter DNA topology. We anticipate our results to be a starting point for improved non-viral gene delivery.
Insights into the gas phase oxidation of Ru(0001) on the mesoscopic scale using molecular oxygen
Authors: Goritzka Jan C. , Herd Benjamin , Krause Philipp P. T. , Falta Jens , Flege J. Ingo , Over Herbert
Published: April 2015

We present an extensive mesoscale study of the initial gas phase oxidation of Ru(0001), employing in situ low-energy electron microscopy (LEEM), micro low-energy electron diffraction (μ-LEED) and scanning tunneling microscopy (STM).
A comparative study on edible Agaricus mushrooms as functional foods
Authors: Glamočlija Jasmina , Stojković Dejan , Nikolić Miloš , Ćirić Ana , Reis Filipa S. , Barros Lillian , Ferreira Isabel C. F. R. , Soković Marina
Published: April 2015

Agaricus bisporus is a cultivated mushroom; A. bitorquis, A. campestris and A. macrosporus are edible mushrooms growing wild in nature.
Eggplant-derived microporous carbon sheets: towards mass production of efficient bifunctional oxygen electrocatalysts at low cost for rechargeable Zn–air batteries
Authors: Li Bing , Geng Dongsheng , Lee Xinjing Shannon , Ge Xiaoming , Chai Jianwei , Wang Zhijuan , Zhang Jie , Liu Zhaolin , Hor T. S. Andy , Zong Yun
Published: April 2015

Microporous carbon sheets derived from eggplant via carbonization and KOH activation serve as efficient bifunctional catalysts for high performance zinc–air batteries.
Carbonylative coupling of allylic acetates with aryl boronic acids
Authors: Ma Wei , Xue Dong , Yu Ting , Wang Chao , Xiao Jianliang
Published: April 2015

The first allylic carbonylation reaction of allylic acetates with aryl boronic acids has been developed.
Ebselen as a potent covalent inhibitor of New Delhi metallo-β-lactamase (NDM-1)
Authors: Chiou Jiachi , Wan Shengbiao , Chan Kin-Fai , So Pui-Kin , He Dandan , Chan Edward Wai-chi , Chan Tak-hang , Wong Kwok-yin , Tao Jiang , Chen Sheng
Published: April 2015

We identified a potent NDM-1 inhibitor that formed a S–Se bond with the Cys221 residue at the active site, thereby exhibiting a new inhibition mechanism with broad spectrum inhibitory potential.
Difluoromethylation and gem-difluorocyclopropenation with difluorocarbene generated by decarboxylation
Authors: Deng Xiao-Yun , Lin Jin-Hong , Zheng Jian , Xiao Ji-Chang
Published: April 2015

Difluoromethylation of the activated X–H bond and aliphatic thiols, and gem-difluorocyclopropenation of alkynes with difluorocarbene generated by decarboxylation are described.
Thermodynamics and crystallization of a theophylline–salicylic acid cocrystal
Authors: Zhang Shuo , Chen Hong , Rasmuson Åke. C.
Published: April 2015

The thermodynamics of the theophylline–salicylic acid cocrystal has been explored and compared with those of another two theophylline cocrystals for an in-depth study of the regular pattern of theophylline cocrystals.
A density functional theory insight towards the rational design of ionic liquids for SO2capture
Authors: García Gregorio , Atilhan Mert , Aparicio Santiago
Published: April 2015

A systematic density functional theory (DFT) analysis has been carried out to obtain information at the molecular level on those factors related to efficient SO2capture by ionic liquids. A set of 55 ionic liquids, for which high gas solubility is expected, has been selected.
Composition-dependent buckling behaviour of hybrid boron nitride–carbon nanotubes
Authors: Zhang Jin , Meguid S. A.
Published: April 2015

This paper studies the buckling of hybrid BN–CNTs and proposes some applications of BN–CNTs based on the results.
Spectral dependence of nonlinear optical properties of symmetrical octatetraynes with p-substituted phenyl end-groups
Authors: Arendt Agata , Kołkowski Radosław , Samoc Marek , Szafert Sławomir
Published: April 2015

Organic compounds containing conjugated carbon chains have been extensively investigated due to their interesting properties including nonlinear optical response.
Lasing in DNA–CTMA doped with Rhodamine 610 in butanol
Authors: Rujoiu T. Bazaru , Petris A. , Vlad V. I. , Rau I. , Manea A.-M. , Kajzar F.
Published: April 2015

The lasing effect in a DNA–CTMA complex doped with Rh610 in butanol has been experimentally demonstrated.
DFT-based Green's function pathways model for prediction of bridge-mediated electronic coupling
Authors: Berstis Laura , Baldridge Kim K.
Published: April 2015

New LMO-GFM methodology enables intuitive understanding of electron tunneling in terms of through-bond and through-space interactions.
Hydrogen photogeneration from water on the biomimetic hybrid artificial photocatalytic systems of semiconductors and earth-abundant metal complexes: progress and challenges
Authors: Xu You , Zhang Bin
Published: April 2015

This perspective summarizes the advances and challenges in hybrid artificial photocatalytic systems comprising semiconductors and biomimetic metal complexes for the photogeneration of hydrogen from water.
Misconception of reductive elimination of H2, in the context of the mechanism of nitrogenase
Authors: Dance Ian
Published: April 2015

Calculated atom partial charges reveal misconceptions of reductive elimination of H2.
Redox inactive metal ion triggered N-dealkylation by an iron catalyst with dioxygen activation: a lesson from lipoxygenases
Authors: Zhang Jisheng , Wang Yujuan , Luo Nengchao , Chen Zhuqi , Wu Kangbing , Yin Guochuan
Published: April 2015

Interaction of Zn2+with Fe(TPA)Cl3can trigger ET from amine to iron(iii) generating a substrate radical which traps dioxygen to produce alkylperoxyl, thus initiating catalytic oxidation, resembling lipoxygenase-like dioxygen activation.
Spin crossover behaviour in one-dimensional FeIIcompounds based on the [M(CN)4]2−(M = Pd, Pt) units
Authors: Zhang Shao-Liang , Zhao Xin-Hua , Wang Yuan-Min , Shao Dong , Wang Xin-Yi
Published: April 2015

Four one-dimensional heterobimetallic spin crossover coordination polymers {Fe(L)2[M(CN)4]}n(M = PdIIand PtII) have been synthesized and characterized.
Crystal structures of benzoxazolyl–copper(iii,ii,i) complexes and investigation of Cu(ii)-mediated aryl carbon–hydrogen bromination
Authors: Wang Lianke , Zhou Hongping , Wu Jieying , Tian Yupeng
Published: April 2015

We report three new copper complexes with different oxidation states based on the phenylbenzoxazole system.
Single-cell kinetics of a repressilator when implemented in a single-copy plasmid
Authors: Oliveira Samuel M. D. , Chandraseelan Jerome G. , Häkkinen Antti , Goncalves Nadia S. M. , Yli-Harja Olli , Startceva Sofia , Ribeiro Andre S.
Published: April 2015

We constructed a single-copy repressilator (SCR) by implementing the original repressilator circuit on a single-copy F-plasmid.
SDRL: a sequence-dependent protein side-chain rotamer library
Authors: Taghizadeh Mohammad , Goliaei Bahram , Madadkar-Sobhani Armin
Published: April 2015

We established a sequence-dependent rotamer library (SDRL) to help in modeling side chains, better understanding of the conformational selection of amino acid side chains and the search for the neighbor dependency of this conformational selection.
The PI3K/AKT/mTOR interactive pathway
Authors: Ersahin Tulin , Tuncbag Nurcan , Cetin-Atalay Rengul
Published: April 2015

The phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of the rapamycin (mTOR) signalling pathway is hyperactivated or altered in many cancer types and regulates a broad range of cellular processes including survival, proliferation, growth, metabolism, angiogenesis and metastasis.
Metabolomics – the complementary field in systems biology: a review on obesity and type 2 diabetes
Authors: Abu Bakar Mohamad Hafizi , Sarmidi Mohamad Roji , Cheng Kian-Kai , Ali Khan Abid , Suan Chua Lee , Zaman Huri Hasniza , Yaakob Harisun
Published: April 2015

This paper highlights the metabolomic roles in systems biology towards the elucidation of metabolic mechanisms in obesity and type 2 diabetes.
Selective neuronal targeting, protection and signaling network analysis via dopamine-mediated mesoporous silica nanoparticles
Authors: Zhang Hailong , Jiang Yuhua , Zhao Sheng-gang , Jiang Li-qin , Meng Yan , Liu Peng , Kim Myeong Ok , Li Shupeng
Published: April 2015

Mesoporous silica nanoparticle (MSN)-mediated glutathione (GSH) delivery for targeted protection of dopaminergic neuronal cells.
The structure determination of uranocene and the first COT lanthanide complexes
Authors: Raymond Kenneth N.
Published: April 2015

Uranocene (bis(cyclooctatetraenyl)uranium) began a new chapter of organoactinide and -lanthanide research. This narrative links this chemistry to the current active topics. Adapted with permission from Organometallics, 2004, 23(15), cover. Copyright (2004) American Chemical Society.
Au-nanocrystals-decorated δ-MnO2as an efficient catalytic cathode for high-performance Li–O2batteries
Authors: Liu Shuangyu , Wang Guoqing , Tu Fangfang , Xie Jian , Yang Hui Ying , Zhang Shichao , Zhu Tiejun , Cao Gaoshao , Zhao Xinbing
Published: April 2015

Porous Au/δ-MnO2on graphene-coated Ni foam exhibited a superior catalytic effect for Li–O2batteries with Au-induced directed Li2O2growth.
Tunable optical activity of plasmonic dimers assembled by DNA origami
Authors: Rao Chengcheng , Wang Zhen-Gang , Li Na , Zhang Wei , Xu Xuecheng , Ding Baoquan
Published: April 2015

Gold nanorod dimers are assembled in parallel on a DNA origami template. Plasmonic circular dichroism was found to be highly dependent on the orientation of the dimers relative to the DNA axis.
Cu-catalyzed debrominative cyanation of gem-dibromoolefins: a facile access to α,β-unsaturated nitriles
Authors: Ahuja Brij Bhushan , Sudalai Arumugam
Published: April 2015

An efficient catalytic route for the synthesis of α,β-unsaturated nitriles from easily accessible gem-dibromoolefins has been developed.
Stereocomplex formation in stereoblock copolymer networks composed of 4-armed star-shaped lactide oligomers and a 2-armed ε-caprolactone oligomer
Authors: Shibata Mitsuhiro , Katoh Masaya , Takase Hayato , Shibita Ayaka
Published: April 2015

A stereoblock-copolymer network prepared from 4-armed star-shaped l-lactide and d-lactide oligomers formed stereocomplex crystallites, while the corresponding homochiral networks were amorphous.
Optically-transparent and electrically-conductive AgI–AgPO3–WO3 glass fibers
Authors: Rioux Maxime , Ledemi Yannick , Viens Jeff , Morency Steeve , Ghaffari Seyed Alireza , Messaddeq Younès
Published: April 2015

We report the fabrication, characterization, and fiber drawing of a silver iodide tungsten-phosphate glass that conducts both light and electricity efficiently.
Synthesis and crystal structure determination of a mononuclear cobalt(ii) complex derived from 4-(pyridin-4-ylmethoxy)-benzoic acid: evaluation of the DNA/protein interaction and photo-induced pBR322 DNA cleavage
Authors: Tabassum Sartaj , Singh Ruchi , Zaki Mehvash , Ahmad Musheer , Afzal Mohd.
Published: April 2015

New Co(ii)-based chemotherapeutic drug candidate was synthesized and thoroughly characterized by spectroscopic, analytical and single crystal X-ray techniques.
Macrocellular polymer foams from water in oil high internal phase emulsion stabilized solely by polymer Janus nanoparticles: preparation and their application as support for Pd catalyst
Authors: Yi Fangyuan , Xu Fugui , Gao Yong , Li Huaming , Chen Daoyong
Published: April 2015

Macrocellular polymer foam with open-cell structure was obtained from Pickering HIPE template stabilized solely by polymer Janus nanoparticles.
Tetraamino-zinc phthalocyanine covalently bound to benzoic acid-functionalized graphene composites for highly efficient visible light photocatalytic activities
Authors: Wang Yan , Zhou Andong , Jiang Yu , Chen Xiangying , He Jianbo
Published: April 2015

Photodegradation of RhB over a composite of zinc phthalocyanine covalently bound to benzoic acid-functionalized graphene.
Cesium selective polymeric membrane sensor based on p-isopropylcalix[6]arene and its application in environmental samples
Authors: Ahmadzadeh Saeid , Rezayi Majid , Kassim Anuar , Aghasi Majid
Published: April 2015

The present work deals with developing a highly selective membrane electrode based onp-isopropylcalix[6]arene for accurate determination of trace amounts of cesium cations.
Superhydrophobic polymethylsilsesquioxane pinned one dimensional ZnO nanostructures for water remediation through photo-catalysis
Authors: Gupta Ankur , Mondal Kunal , Sharma Ashutosh , Bhattacharya Shantanu
Published: April 2015

In this work we have developed ultra-dense high aspect ratio ZnO nano-forest like structures and explored their potential as photo-catalysts.
Room-temperature phosphorescence by Mn-doped ZnS quantum dots hybrid with Fenton system for the selective detection of Fe2+
Authors: Jin Qing , Hu Yueli , Sun Yuxiu , Li Yan , Huo Jianzhong , Zhao Xiaojun
Published: April 2015

Fe2+ was selectively detected based on the phosphorescence quenching of MPA–Mn : ZnS QDs caused by hydroxyl radicals from the Fenton reaction.
Low-temperature fabrication of high performance indium oxide thin film transistors
Authors: Meng You , Liu Guoxia , Liu Ao , Song Huijun , Hou Yang , Shin Byoungchul , Shan Fukai
Published: April 2015

In this study, indium oxide (In2O3) thin-film transistors (TFTs) were fabricated by a fully-solution process at low temperature.
The origin of regio- and stereoselectivity in the 1,3-dipolar cycloaddition of nitrile oxides with C1-substituted 7-oxabenzonorbornadienes, a DFT study
Authors: Tajabadi J. , Bakavoli M. , Gholizadeh M. , Eshghi H. , Izadyar M.
Published: April 2015

The origin ofexo/antiselectivity in the 1,3-dipolar cycloaddition of nitrile oxides with C1-substituted 7-oxabenzonorbornadienes has been investigated theoretically.
Development of a novel drug-eluting stent consisting of an abluminal and luminal coating layer dual therapy system
Authors: Park Jun-Kyu , Lee Jung Ho , Nah Jae-Woon , Kim Han Ki , Lim Kyung Seob , Bae In-Ho , Jeong Myung Ho , Unnithan Afeesh Rajan , Cheol Sang Kim Cheol Sang Kim , Park Chan-Hee
Published: April 2015

The aim of this study was to develop a dual drug-coated stent using a bi-directional coating system.
Polydopamine and graphene oxide synergistically modified Prussian blue electrochemical immunosensor for the detection of alpha-fetoprotein with enhanced stability and sensibility
Authors: Zhang Ren-zhong , Pan Bo-guang , Wang Hai-ning , Dan Jian-ming , Hong Cheng-lin , Li Hong-ling
Published: April 2015

In this paper, a simple and highly sensitive amperometric immunosensor for the determination of alpha-fetoprotein based on multi-functional gold nanoparticles–polydopamine-Prussian blue–graphene oxide nanocomposites (Au–PDA-PB–GO) was fabricated.
Dynamic redox cycle of Cu0 and Cu+ over Cu/SiO2 catalyst in ester hydrogenation
Authors: Ma Xiangang , Yang Zhiqiang , Liu Xuebin , Tan Xingzhi , Ge Qingjie
Published: April 2015

Esters can oxidize Cu0 to Cu+ and the obtained Cu+ can be reduced back to Cu0 by H2 under reaction conditions. Cu0 and Cu+ are in a dynamic cycle during ester hydrogenation.
Hybrid amphiphilic bimodal hydrogels having mechanical and biological recognition characteristics for cardiac tissue engineering
Authors: Finosh G. T. , Jayabalan M.
Published: April 2015

Tissue engineering strategies rely on the favourable microniche scaffolds for 3D cell growth.
Morphology and film performance of phthalate-free plasticized poly(vinyl chloride) composite particles via the graft copolymerization of acrylate swelling flower-like latex particles
Authors: Chang Yanning , Pan Mingwang , Yuan Jinfeng , Liu Ying , Wang Xiaomei , Jiang Peizhao , Wang Yaling , Zhong Gan-Ji , Li Zhong-Ming
Published: April 2015

Polyacrylate plasticized PVC composite particles without toxicity and migration were synthesized via a multistage seeded emulsion polymerization of BA swelling nonspherical PBA/PVC latex particles with a flower-like shell.
Adsorption of p-nitrothiophenol on mesostructured polyoxometalate–silicate–surfactant composites containing Au nanoparticles: study of surface-enhanced Raman scattering activity
Authors: Wang Li-Ping , Kuo Shan-Chi , Jeng U-Ser , Lai Ying-Huang
Published: April 2015

When DMAB-functionalized Au-NPs@EPSS acts as the SERS substrate, the detection sensitivity of p-NTP molecules increases by ∼6 times compared with as-synthesized Au-NPs@EPSS.
Ultra small gold nanoparticles–graphitic carbon nitride composite: an efficient catalyst for ultrafast reduction of 4-nitrophenol and removal of organic dyes from water
Authors: Bhowmik Tanmay , Kundu Manas Kumar , Barman Sudip
Published: April 2015

Synthesis of ultra-small gold particles on g-C3N4 sheets was reported. This Au–C3N4 composite exhibited superior catalytic activity toward reduction of 4-nitrophenol and adsorption, photocatalytic degradation of dyes.
Coumarins as privileged scaffold for anti-inflammatory drug development
Authors: Grover Jagdeep , Jachak Sanjay M.
Published: April 2015

Several literature reports had highlighted the significance of coumarin nucleus as a source of potential candidates for anti-inflammatory drug development.
Green synthesis of 3D SnO2/graphene aerogels and their application in lithium-ion batteries
Authors: Gong Chen , Zhang Yongquan , Yao Mingguang , Wei Yingjin , Li Quanjun , Liu Bo , Liu Ran , Yao Zhen , Cui Tian , Zou Bo , Liu Bingbing
Published: April 2015

3D SnO2/GAs were constructed by a simple, facile and environmental friendly process, and show excellent performance when used as anode material in lithium ion batteries.
Green fabrication of 3-dimensional flower-shaped zinc glycerolate and ZnO microstructures for p-nitrophenol sensing
Authors: Sinhamahapatra Apurba , Bhattacharjya Dhrubajyoti , Yu Jong-Sung
Published: April 2015

Use of aqueous glycerol as a green reaction medium to synthesis zinc glycerolate and corresponding ZnO micro-flowers and development of amperometric binder-free chemical sensor are described to detect p-nitrophenol.
What causes extended layering of ionic liquids on the mica surface?
Authors: Gong Xiao , Kozbial Andrew , Li Lei
Published: April 2015

The adsorbed water on the mica surface is the key to the extended layering of ILs.
Counterion influence on the N–I–N halogen bond
Authors: Bedin Michele , Karim Alavi , Reitti Marcus , Carlsson Anna-Carin C. , Topić Filip , Cetina Mario , Pan Fangfang , Havel Vaclav , Al-Ameri Fatima , Sindelar Vladimir , Rissanen Kari , Gräfenstein Jürgen , Erdélyi Máté
Published: April 2015

Counterions influence three-center halogen bonds differently than coordination bonds of transition metals.
Polymorph crystal packing effects on charge transfer emission in the solid state
Authors: He Xiaoyan , Benniston Andrew C. , Saarenpää Hanna , Lemmetyinen Helge , Tkachenko Nikolia V. , Baisch Ulrich
Published: April 2015

Condensation of 1,8-naphthalic anhydride withN,N-(dimethylamino)aniline produced the donor-acceptor compoundDMIM, which crystallised from a chloroform–diethyl ether mixture to afford two different coloured crystal polymorphs.
Cholesterol expels ibuprofen from the hydrophobic membrane core and stabilizes lamellar phases in lipid membranes containing ibuprofen
Authors: Alsop Richard J. , Armstrong Clare L. , Maqbool Amna , Toppozini Laura , Dies Hannah , Rheinstädter Maikel C.
Published: April 2015

The presence of cholesterol in lipid membranes with ibuprofen suppresses partitioning of ibuprofen in the lipid tail groups and stabilizes lamellar membrane phases.
Rouse mode analysis of chain relaxation in polymer nanocomposites
Authors: Kalathi Jagannathan T. , Kumar Sanat K. , Rubinstein Michael , Grest Gary S.
Published: April 2015

Large-scale molecular dynamics simulations are used to study the internal relaxations of chains in nanoparticle (NP)/polymer composites.
A spiro-bifluorene based 3D electron acceptor with dicyanovinylene substitution for solution-processed non-fullerene organic solar cells
Authors: Xia Debin , Gehrig Dominik , Guo Xin , Baumgarten Martin , Laquai Frédéric , Müllen Klaus
Published: April 2015

A 3D acceptor for bulk heterojunction solar cells.
Exploration and optimisation of poly(2,2′-bithiophene) as a stable photo-electrocatalyst for hydrogen production
Authors: Ng Chun Hin , Winther-Jensen Orawan , Ohlin C. André , Winther-Jensen Bjorn
Published: April 2015

Polybithiophene as a HER catalyst is further explored, revealing longterm stability, high faradaic efficiency and successful operation at pH 11.
Methodology for the study of mixed transport properties of a Zn-doped SrZr0.9Y0.1O3−δ electrolyte under reducing conditions
Authors: Pérez-Coll D. , Heras-Juaristi G. , Fagg D. P. , Mather G. C.
Published: April 2015

The mixed transport properties of a Zn-doped SrZr0.9Y0.1O3−δ solid electrolyte were analysed under wet reducing conditions by means of an active-load modification of the electromotive force methodology.
One-step hydrothermal synthesis of monolayer MoS2 quantum dots for highly efficient electrocatalytic hydrogen evolution
Authors: Ren Xianpei , Pang Liuqing , Zhang Yunxia , Ren Xiaodong , Fan Haibo , Liu Shengzhong (Frank)
Published: April 2015

Monolayer MoS2 QDs were prepared via a facile hydrothermal process and exhibited excellent catalytic activity for the hydrogen evolution reaction.
Zr-based metal–organic frameworks for specific and size-selective enrichment of phosphopeptides with simultaneous exclusion of proteins
Authors: Zhu Xiangyang , Gu Jinlou , Yang Jian , Wang Zhe , Li Yongsheng , Zhao Liming , Zhao Wenru , Shi Jianlin
Published: April 2015

Zr-based MOFs were successfully developed as affinity adsorbents for sensitive and specific enrichment of phosphopeptides with an interesting molecule-sieving effect.
Multi-responsive graft copolymer micelles comprising acetal and disulfide linkages for stimuli-triggered drug delivery
Authors: Liu Huanhuan , Li Cangxia , Tang Dandan , An Xiaonan , Guo Yanfei , Zhao Youliang
Published: April 2015

Dual-cleavable polymeric aggregates were efficiently used for thermo-, pH and reduction triggered controlled release of doxorubicin due to the stimuli-dependent topological transformation and reaggregation of copolymer aggregates.
The structure–property relationship study of electron-deficient dihydroindeno[2,1-b]fluorene derivatives for n-type organic field effect transistors
Authors: Romain Maxime , Chevrier Michèle , Bebiche Sarah , Mohammed-Brahim Tayeb , Rault-Berthelot Joëlle , Jacques Emmanuel , Poriel Cyril
Published: April 2015

A bridged syn triphenylene derivative functionalized with dicyanovinylene units (2,1-b)-IF(C(CN)2)2 has been synthesized, characterized and successfully used as an active layer in n-channel OFETs. Pseudo CMOS inverters made of n-type (2,1-b)-IF(C(CN)2)2 -based OFETs have been fabricated.
New homoleptic iridium complexes with C∧NN type ligand for high efficiency orange and single emissive-layer white OLEDs
Authors: Guo Li Yuan , Zhang Xun Lu , Wang Hai Shan , Liu Chen , Li Zhi Gang , Liao Zhang Jin , Mi Bao Xiu , Zhou Xin Hui , Zheng Chao , Li Yong Hua , Gao Zhi Qiang
Published: April 2015

Two new iridium complexes were prepared. With one of the complexes, both high efficiency orange EL and single-EML WOLED were constructed.
Tunable two-photon absorption near-infrared materials containing different electron-donors and a π-bridge center with applications in bioimaging in live cells
Authors: Kong Ming , Wang Ting , Tian Xiaohe , Wang Fang , Liu Yanqiu , Zhang Qiong , Wang Hui , Zhou Hongping , Wu Jieying , Tian Yupeng
Published: April 2015

The 2PA can be adjusted by the electron donating group and π-bridge center among the dyes.
Circularly polarised solar antenna for airborne communication nodes
Authors: O'Conchubhair O. , Narbudowicz A. , McEvoy P. , Ammann M.J.
Published: April 2015

A circularly polarised solar cell antenna consisting of four sequentially rotated printed inverted‐F antennas is proposed. Four multicrystalline silicon solar cells act as the ground plane and the antenna is suitable for low‐power airborne communication nodes and wireless sensor networks. The antenna design was developed to allow 100% insolation of the cells when directly facing a light source. The low‐profile antenna minimises shadowing of the solar cell for oblique angle insolation.
Analysis of low‐frequency current ripple transmission in series‐resonant LED drivers
Authors: de Melo M.F. , Vizzotto W.D. , Chies L. , Dalla Costa M.A. , Alonso J.M.
Published: April 2015

The use of series‐resonant converters (SRCs) in light‐emitting diode (LED) drivers has increased due to its simplicity and high efficiency. Furthermore, the use of a SRC provides reduction of the low‐frequency ripple in the LED current, originated by the bus voltage ripple. Thus, an analysis of the SRC aiming to define a design methodology to improve the current ripple reduction provided by the SRC is proposed. Moreover, a discussion about the main factors that have influenced ripple reduction and the limits for this attenuation is presented, which have not been explored in the literature hither to.
Gestion des muscles et des fonctions par le kinésithérapeute dans les traitements orthodontiques et ortho-chirurgicaux. Rééducation oro-myofonctionnelle
Authors: Girard Marion , Leroux Claire
Published: April 2015

Peut-on espérer faire l’économie de la gestion des muscles et des fonctions dans les plans de traitement orthodontiques ou ortho-chirurgicaux ? En quoi le masseur-kinésithérapeute spécialisé peut-il aider, faciliter, stabiliser le travail de l’orthodontiste et du chirurgien maxillo-facial et éviter les récidives ? L’alignement dentaire et l’équilibre occlusal recherchés par les traitements sont en lien direct avec l’équilibre musculaire de la langue, des muscles peauciers, des muscles masticateurs, des muscles posturaux et les fonctions de la sphère oro-faciale. La réinstallation d’un équilibre entre muscles agonistes et antagonistes passe par un relâchement des muscles contracturés et par une tonification progressive des muscles déficients. La rééducation des dysfonctions oro-maxillo-faciales (linguales, labiales, jugales, masticatoires, ventilatoires) et de la posture globale, ainsi que la gestion des para-fonctions, nécessitent obligatoirement la participation active du patient pour un traitement efficace et pérenne. Cette rééducation est indispensable à l’orthopédie dento-faciale des enfants comme des adultes. L’illustration au travers de cas pratiques montrera ce que la rééducation myo-fonctionnelle peut apporter. Les résultats sont extrêmement satisfaisants pour rétablir les fonctions naturelles sous la condition d’exercices musculaires quotidiens et l’entraînement, tout au long de la journée, des bonnes postures et praxies enseignées, et cela pendant un à plusieurs trimestres sous la supervision du rééducateur.
Time temperature transformation diagram for secondary crystal products of Co-based Co-Fe-B-Si-Nb-Mn soft magnetic nanocomposite
Authors: DeGeorge V. , Zoghlin E. , Keylin V. , McHenry M.
Published: April 2015

Secondary crystallization is the subject of much investigation in magnetic amorphous and nanocomposites (MANCs) as it limits the long term and thermal stability of their operation in device applications, including power electronics, sensors, and electric motors. Secondary crystal products [Blazquez et al., Philos. Mag. Lett. 82(7), 409–417 (2002); Ohodnicki et al., Phys. Rev. B 78, 144414 (2008); Willard et al., Metall. Mater. Trans. A 38, 725 (2007)], nanostructure and crystallization kinetics [Hsiao et al., IEEE Trans. Magn. 38(5), 3039 (2002); McHenry et al., Scr. Mater. 48(7), 881 (2003)], and onset temperatures and activation energies [Ohodnicki et al., Acta. Mater. 57, 87 (2009); Long et al., J. Appl. Phys. 101, 09N114 (2007)] at constant heating have been reported for similar alloys. However, a time-temperature-transformation (TTT) diagram for isothermal crystallization, more typical of application environments, has not been reported in literature. Here, a TTT diagram for the Co based, Co-Fe-Si-Nb-B-Mn MANC system is presented, along with a method for determining such. The method accounts for the presence of primary crystal phases and yields crystal fraction of secondary phase(s) by using a novel four stage heating profile. The diagram, affirmed by Kissinger activation energy analysis, reports thermal stability of the MANC for millennia at conventional device operating temperatures, and stability limits less than a minute at elevated temperatures. Both extremes are necessary to be able to avoid secondary crystalline products and establish operating limits for this mechanically attractive, high induction soft magnetic nanocomposite.