bluuebunny/crossref_metadata_2025 huggingface dataset:
Surging and plunging oscillations of an airfoil at low Reynolds number
Authors: Choi Jeesoon , Colonius Tim , Williams David R.
Published: December 2014

We investigate the forces and unsteady flow structures associated with harmonic oscillations of an airfoil in the streamwise (surging) and transverse (plunging) directions in two-dimensional simulations at low Reynolds number. For the surging case, we show that there are specific frequencies where the wake instability synchronizes with the unsteady motion of the airfoil, leading to significant changes in the mean forces. Resonant behaviour of the time-averaged forces is observed near the vortex shedding frequency and its subharmonic; the behaviour is reminiscent of the dynamics of the generic nonlinear oscillator known as the Arnol’d tongue or the resonance horn. Below the wake instability frequency, there are two regimes where the fluctuating forces are amplified and attenuated, respectively. A detailed study of the flow structures associated with leading-edge vortex (LEV) growth and detachment are used to relate this behaviour with the LEV acting either in phase with the quasi-steady component of the forces for the amplification case, or out of phase for the attenuation case. Comparisons with wind tunnel measurements show that phenomenologically similar dynamics occur at higher Reynolds number. Finally, we show that qualitatively similar phenomena occur during both surging and plunging.
(ANTI)COMMUTATIVE ALGEBRAS WITH A MULTIPLICATIVE BASIS
Authors: CALDERÓN MARTÍN ANTONIO J.
Published: December 2014

A basis ${\mathcal{B}}=\{u_{i}\}_{i\in I}$ of a commutative or anticommutative algebra $\mathfrak{C},$ over an arbitrary base field $\mathbb{F}$, is called multiplicative if for any $i,j\in I$ we have that $u_{i}u_{j}\in \mathbb{F}u_{k}$ for some $k\in I$. We show that if a commutative or anticommutative algebra $\mathfrak{C}$ admits a multiplicative basis then it decomposes as the direct sum $\mathfrak{C}=\bigoplus _{j}\mathfrak{i}_{j}$ of well-described ideals each one of which admits a multiplicative basis. Also the minimality of $\mathfrak{C}$ is characterised in terms of the multiplicative basis and it is shown that, under a mild condition, the above direct sum is indexed by the family of its minimal ideals admitting a multiplicative basis.
A JORDAN-LIKE DECOMPOSITION IN THE NONCOMMUTATIVE SCHWARTZ SPACE
Authors: PISZCZEK KRZYSZTOF
Published: December 2014

We show that every continuous self-adjoint functional on the noncommutative Schwartz space can be decomposed into a difference of two positive functionals. Moreover, this decomposition is minimal in the natural sense.
Tumour necrosis factor-α/interleukin-10 ratio in patients with obstructive sleep apnoea hypopnoea syndrome
Authors: Jiang H , Cao H , Wang P , Liu W , Cao F , Chen J
Published: December 2014

Objective:

To explore the significance of the tumour necrosis factor-α/interleukin-10 ratio and the effect of continuous positive airway pressure in patients with different degrees of obstructive sleep apnoea hypopnoea syndrome severity.

Method:

This study comprised 135 patients with obstructive sleep apnoea hypopnoea syndrome and 94 control subjects.

Results:

Tumour necrosis factor-α and tumour necrosis factor-α/interleukin-10 ratio values were significantly higher in the obstructive sleep apnoea hypopnoea syndrome group than in the control group, but interleukin-10 was significantly lower. Tumour necrosis factor-α/interleukin-10 ratio values increased in line with the severity of obstructive sleep apnoea hypopnoea syndrome. In multivariate analysis, the tumour necrosis factor-α/interleukin-10 ratio correlated positively with the apnoea–hypopnoea index and all indices of obstructive sleep apnoea hypopnoea syndrome, except for age, body mass index and neck circumference. After one month of continuous positive airway pressure therapy, levels of tumour necrosis factor-α decreased; interleukin-10 showed no change.

Conclusion:

The results suggest that inflammation is activated and anti-inflammatory cytokines are decreased in obstructive sleep apnoea hypopnoea syndrome patients. Tumour necrosis factor-α/interleukin-10 ratio may prove useful for severity monitoring and management of obstructive sleep apnoea hypopnoea syndrome patients, and may reduce the need for polysomnography.
Distribution and abundance of teredinid recruits along the Swedish coast – are shipworms invading the Baltic Sea?
Authors: Appelqvist Christin , Havenhand Jon N. , Toth Gunilla B.
Published: December 2014

Shipworms (teredinids) are highly specialized marine bivalves that consume terrestrially derived wood. Changes in environmental variables may result in shipworms spreading into the Baltic Sea – which would have devastating consequences for maritime cultural heritage and submerged wooden structures. We investigated the distribution and abundance of the shipworms Teredo navalis and Psiloteredo megotara along the Swedish coast in 2006–2008, and compared our findings with data collected at partly the same locations in 1971–1973. Wooden test panels were submerged in near-surface waters at 18 harbours. The presence of shipworms was determined by X-ray radiography of each panel. Sea surface temperature and salinity data were analysed to investigate whether any changes in distribution were correlated to changes in environmental variables. We found that past and present distributions of T. navalis were similar – indicating that no range expansion of shipworms into the Baltic Sea has taken place the last 35 years. The abundance of T. navalis was similar between decades at all investigated sites except two (Arild and Barsebäckshamn), where abundances were higher in 2006–2008. The abundance of T. navalis varied along the coast and was positively correlated to mean sea surface salinity, but not to mean sea surface temperature (2006–2008 data). The distribution and abundance of P. megotara were similar during the two study periods with only single observations at a few sites. In conclusion, we found no evidence of range expansion of shipworms along the Swedish coast.
Emergency Resuscitation of Patients Enrolled in the US Diaspirin Cross-linked Hemoglobin (DCLHb) Clinical Efficacy Trial
Authors: Sloan Edward P. , Koenigsberg Max , Weir W. Brad , Clark James M. , O'Connor Robert , Olinger Michael , Cydulka Rita
Published: December 2014

Introduction

Optimal emergent management of traumatic hemorrhagic shock patients requires a better understanding of treatment provided in the prehospital/Emergency Medical Services (EMS) and emergency department (ED) settings.

Hypothesis/Problem

Described in this research are the initial clinical status, airway management, fluid and blood infusions, and time course of severely-injured hemorrhagic shock patients in the EMS and ED settings from the diaspirin cross-linked hemoglobin (DCLHb) clinical trial.

Methods

Data were analyzed from 17 US trauma centers gathered during a randomized, controlled, single-blinded efficacy trial of a hemoglobin solution (DCLHb) as add-on therapy versus standard therapy.

Results

Among the 98 randomized patients, the mean EMS Glasgow Coma Scale (GCS) was 10.6 (SD = 5.0), the mean EMS revised trauma score (RTS) was 6.3 (SD = 1.9), and the mean injury severity score (ISS) was 31 (SD = 17). Upon arrival to the ED, the GCS was 20% lower (7.8 (SD = 5.3) vs 9.7 (SD = 6.3)) and the RTS was 12% lower (5.3 (SD = 2.0) vs 6.0 (SD = 2.1)) than EMS values in blunt trauma patients (P< .001). By ED disposition, 80% of patients (78/98) were intubated. Rapid sequence intubation (RSI) was utilized in 77% (60/78), most often utilizing succinylcholine (65%) and midazolam (50%). The mean crystalloid volume infused was 4.2 L (SD = 3.4 L), 80% of which was infused within the ED. Emergency department blood transfusion occurred in 62% of patients, with an average transfused volume of 1.2 L (SD = 2.0 L). Blunt trauma patients received 2.1 times more total fluids (7.4 L vs 3.5 L, < .001) and 2.4 times more blood (2.4 L vs 1.0 L,P< .001). The mean time of patients taken from injury site to operating room (OR) was 113 minutes (SD = 87 minutes). Twenty-one (30%) of the 70 patients taken to the OR from the ED were sent within 60 minutes of the estimated injury time. Penetrating trauma patients were taken to the OR 52% sooner than blunt trauma patients (72 minutes vs 149 minutes,P< .001).

Conclusion

Both GCS and RTS decreased prior to ED arrival in blunt trauma patients. Intubation was performed using RSI, and crystalloid infusion of three times the estimated blood loss volume (L) and blood transfusion of the estimated blood loss volume (L) were provided in the EMS and ED settings. Surgical intervention for these trauma patients most often occurred more than one hour from the time of injury. Penetrating trauma patients received surgical intervention more rapidly than those with a blunt trauma mechanism.

SloanEP,KoenigsbergM,WeirWB,ClarkJM,O'ConnorR,OlingerM,CydulkaR.Emergency resuscitation of patients enrolled in the US diaspirin cross-linked hemoglobin (DCLHb) clinical efficacy trial.Prehosp Disaster Med.2015;30(1):1-8.
ADVENTURES IN INVARIANT THEORY
Authors: JARVIS P. D. , SUMNER J. G.
Published: December 2014

We provide an introduction to enumerating and constructing invariants of group representations via character methods. The problem is contextualized via two case studies, arising from our recent work: entanglement invariants for characterizing the structure of state spaces for composite quantum systems; and Markov invariants, a robust alternative to parameter-estimation intensive methods of statistical inference in molecular phylogenetics.
The monster we don't see: subclinical BRD in beef cattle
Authors: Griffin Dee
Published: December 2014

Bovine respiratory disease (BRD) is the most expensive disease affecting United States cattle. Recently weaned calves are the focus of prevention and treatment research. Identifying affected cattle early in the course of BRD is difficult. Intervention during the early stages of BRD improves treatment outcomes; however, cattle as prey animals are excellent at hiding signs of disease, especially if the caregiver has not gained their trust. Depression, appetite loss, and changes in respiratory character are the principal signs used to identify BRD. Rectal temperatures from cattle pulled for treatment are a final measure of evaluation. Cattle suffering from subclinical BRD frequently escape identification and treatment. Observations of lungs at packing plants for anterior ventral (AV) lesions frequently document higher BRD incidence rates than observed pre-harvest, suggesting subclinical BRD is common. Data from numerous studies document lower average daily gains (ADG) from cattle with AV lung lesions at packing plants that were not treated for BRD compared with cattle with normal lungs. Scoring lung lesions at the packing plant can be a useful tool for gaining insight into BRD incidence. Data indicate that BRD lowers ADG by 0.2 lbs on average, and lowers the USDA Quality Grade by 50 marbling points.
More than just Welfare Transfers? A Review of the Scope of Esping-Andersen's Welfare Regime Typology
Authors: Buhr Daniel , Stoy Volquart
Published: December 2014

With the Three Worlds of Welfare Capitalism (TWWC) Gøsta Esping-Andersen (1990) intended to provide a comprehensive typology covering welfare regimes as well as their effects on the economy. However, the initial TWWC-framework fell short of its promises as it ignored welfare services and the industrial sector of the economy. In the last twenty-five years many studies have analysed these previously overlooked aspects. In this article we review this research. We find that most empirical studies on welfare services, as well as on the economy, confirm the validity of the TWWC typology. However, insufficient attention has been paid to exposing the interplay between the different areas. In the second part of the article we provide two alternative explanations for the linkage between welfare regime and capitalism typologies. There is evidence for a functionalist explanation as proposed by the Varieties-of-Capitalism (VoC) framework, as well as for a political explanation delivered by the power resources approach.
Arteries are formed by vein-derived endothelial tip cells
Authors: Xu Cong , Hasan Sana S. , Schmidt Inga , Rocha Susana F. , Pitulescu Mara E. , Bussmann Jeroen , Meyen Dana , Raz Erez , Adams Ralf H. , Siekmann Arndt F.
Published: December 2014

Tissue vascularization entails the formation of a blood vessel plexus, which remodels into arteries and veins. Here we show, by using time-lapse imaging of zebrafish fin regeneration and genetic lineage tracing of endothelial cells in the mouse retina, that vein-derived endothelial tip cells contribute to emerging arteries. Our movies uncover that arterial-fated tip cells change migration direction and migrate backwards within the expanding vascular plexus. This behaviour critically depends on chemokine receptor cxcr4a function. We show that the relevant Cxcr4a ligand Cxcl12a selectively accumulates in newly forming bone tissue even when ubiquitously overexpressed, pointing towards a tissue-intrinsic mode of chemokine gradient formation. Furthermore, we find that cxcr4a mutant cells can contribute to developing arteries when in association with wild-type cells, suggesting collective migration of endothelial cells. Together, our findings reveal specific cell migratory behaviours in the developing blood vessel plexus and uncover a conserved mode of artery formation.
Transmission versus transflection mode in FTIR analysis of blood plasma: is the electric field standing wave effect the only reason for observed spectral distortions?
Authors: Staniszewska-Slezak Emilia , Rygula Anna , Malek Kamilla , Baranska Malgorzata
Published: December 2014

Fourier transform infrared (FTIR) microspectroscopy is assessed in terms of two techniques (i.e., transmission and transflection) as a method for rapid measurements of blood plasma.
SIFT-MS and FA-MS methods for ambient gas phase analysis: developments and applications in the UK
Authors: Smith David , Španěl Patrik
Published: December 2014

The origins of SIFT created to study interstellar chemistry and SIFT-MS developed for ambient gas and exhaled breath analysis and the UK centres in which these techniques are being exploited.
A thermal desorption ion mobility spectrometer for the measurement of anticoagulant rodenticide diphacinone in beverages via in situ acid-assisted conversion
Authors: Peng Liying , Wang Xin , Chen Wendong , Zhou Qinghua , Wang Weiguo , Li Haiyang
Published: December 2014

TD-IMS was constructed for fast detection of rodenticide diphacinone via in situ acid-assisted conversion and applied for its on-site determination in beverages.
Extraction and determination of sulfadiazine and sulfathiazole in milk using magnetic solid phase extraction-HPLC-UV
Authors: Karami-Osboo Rouhollah , Miri Ramin , Javidnia Katayoun , Shojaee Mohammad Hossein , Kobarfard Farzad
Published: December 2014

Sulfonamides are heat-stable antibacterial drugs and their residues in milk increase the risk of human exposure and may cause food-borne illness.
In situ growth of Fe3O4nanoparticles for dispersive magnetic micro-solid phase extraction of cadmium followed by ETAAS detection
Authors: Camba Manuel , Romero Vanesa , Lavilla Isela , Bendicho Carlos
Published: December 2014

Dispersive magnetic micro-solid phase extraction (DM-μ-SPE) within situgrowth of Fe3O4NPs is described for Cd determination by ETAAS.
Rational design of an orthosteric regulator of hIAPP aggregation
Authors: Zhao De-Sheng , Chen Yong-Xiang , Li Yan-Mei
Published: December 2014

Compounds that can block hIAPP toxic oligomer but not fibril formation have been rationally designed based on the helix aggregation mechanism.
Cheap carbon black-based high-performance electrocatalysts for oxygen reduction reaction
Authors: Song Ping , Zhang Yuwei , Pan Jing , Zhuang Lin , Xu Weilin
Published: December 2014

An ORR Fe–Nx/C electrocatalyst with one of the best price/performance ratios shows high-performance in alkaline DMFCs and H2–O2fuel cells.
Targeted synthesis of a large triazine-based [4+6] organic molecular cage: structure, porosity and gas separation
Authors: Ding Huimin , Yang Yihui , Li Bijian , Pan Feng , Zhu Guozhu , Zeller Matthias , Yuan Daqiang , Wang Cheng
Published: December 2014

A novel electron-deficient triazine-based [4+6] organic molecular cage has been synthesized via imine condensation reaction.
Direct fabrication of nanoporous graphene from graphene oxide by adding a gasification agent to a magnesiothermic reaction
Authors: Xing Zhenyu , Wang Bao , Halsted Joshua Kane , Subashchandrabose Raghu , Stickle William F. , Ji Xiulei
Published: December 2014

CaCO3 acts as a gasification agent during magnesiothermic reduction of graphene oxide, thus preventing the newly formed graphene from restacking.
Glutathione-coordinated [2Fe–2S] cluster: a viable physiological substrate for mitochondrial ABCB7 transport
Authors: Li Jingwei , Cowan J. A.
Published: December 2014

Glutathione-coordinated [2Fe–2S] cluster is demonstrated to be a viable and likely substrate for mitochondrial iron–sulfur cluster transport by the ABCB7 export protein.
Charge gradient-induced on-surface growth of ultralarge single-crystalline Ag nanomembranes for long surface plasmon propagation
Authors: Qin Haili , Xiong Xiong , Wu Dongmin , Zhang Feng , Wang Dong , Liu Xia , Yang Wensheng , Jin Jian
Published: December 2014

The Ag nanomembrane with an atomically smooth surface and a large area has been prepared and demonstrated superior plasmonic properties.
Supracolloidal polymer chains of diblock copolymer micelles
Authors: Kim Jeong-Hee , Kwon Won Jong , Sohn Byeong-Hyeok
Published: December 2014

Directional attraction with lateral repulsion between colloidal nanoparticles can create their supracolloidal chains.
((1H-tetrazol-5-yl) methyl) pyridine-based metal coordination complexes: in situ tetrazole synthesis, crystal structures, luminescence properties
Authors: Dong Ruoting , Chen Xinli , Li Qianhong , Hu Mingyuan , Huang Lanfen , Li Chuwen , Shen Moyuan , Deng Hong
Published: December 2014

Six novel transition metal coordination complexes based on pyridyltetrazole ligands have been hydrothermally in situ synthesized.
Controlled synthesis of CuS caved superstructures and their application to the catalysis of organic dye degradation in the absence of light
Authors: Shu Qun Wei , Lan Jing , Gao Ming Xuan , Wang Jian , Huang Cheng Zhi
Published: December 2014

CuS caved superstructures with a variety of sizes and regular shapes were synthesized by an innovative one-pot method, which showed excellent catalytic properties evaluated by degradation of methylene blue (MB) without light.
A direct Fe–O coordination at the FePc/MoOxinterface investigated by XPS and NEXAFS spectroscopies
Authors: Liu Lingyun , Zhang Wenhua , Guo Panpan , Wang Kai , Wang Jiaou , Qian Haijie , Kurash Ibrahim , Wang Chia-Hsin , Yang Yaw-Wen , Xu Faqiang
Published: December 2014

FePc adsorption highly facilitates the thermal reduction of the MoO3layer, of which the mechanism involves an additional direct coupling between FePc molecules and the MoOxsubstrate in addition to the formation of the oxygen vacancies.
Accurate calibration and control of relative humidity close to 100% by X-raying a DOPC multilayer
Authors: Ma Yicong , Ghosh Sajal K. , Bera Sambhunath , Jiang Zhang , Tristram-Nagle Stephanie , Lurio Laurence B. , Sinha Sunil K.
Published: December 2014

A novel humidity chamber for accurate control of the relative humidity close to 100% using the shown calibration curve.
Microsecond pulsed hydrogen/deuterium exchange of electrosprayed ubiquitin ions stored in a linear ion trap
Authors: Rajabi Khadijeh
Published: December 2014

The pulsed HDX MS method is sampling a population of ubiquitin ions with a similar backbone fold as solution.
Controlled growth of extended arrays of CoSi2 hexagonal nanoplatelets buried in Si(001), Si(011) and Si(111) wafers
Authors: Kellermann G. , Montoro L. A. , Giovanetti L. J. , dos Santos Claro P. C. , Zhang L. , Ramirez A. J. , Requejo F. G. , Craievich A. F.
Published: December 2014

Hexagonal nanoplatelets buried in (a) Si(111) and (b) Si(001). (c) Characteristic V-shape patterns obtained for oriented hexagonal nanoplatelets buried in a Si(001) wafer.
Moderate band-gap-broadening induced high separation of electron–hole pairs in Br substituted BiOI: a combined experimental and theoretical investigation
Authors: Huang Hongwei , Li Xiaowei , Han Xu , Tian Na , Zhang Yihe , Zhang Tierui
Published: December 2014

We disclose band-gap-broadening induced greatly inhibited recombination of photogenerated electrons and holes and remarkably enhanced photocatalytic activity of Br substituted BiOI photocatalyst.
Incremental evaluation of coupled cluster dipole polarizabilities
Authors: Friedrich Joachim , McAlexander Harley R. , Kumar Ashutosh , Crawford T. Daniel
Published: December 2014

In this work we present the first implementation of the incremental scheme for coupled cluster linear-response frequency-dependent dipole polarizabilities.
Voronoi dipole moments for the simulation of bulk phase vibrational spectra
Authors: Thomas Martin , Brehm Martin , Kirchner Barbara
Published: December 2014

Voronoi tessellation of the electron density in ab initio molecular dynamics simulations is used to calculate vibrational spectra.
Synthetic biology for the directed evolution of protein biocatalysts: navigating sequence space intelligently
Authors: Currin Andrew , Swainston Neil , Day Philip J. , Kell Douglas B.
Published: December 2014

Improving enzymes by directed evolution requires the navigation of very large search spaces; we survey how to do this intelligently.
Barium zirconate: a new photocatalyst for converting CO2 into hydrocarbons under UV irradiation
Authors: Chen Xianliu , Wang Jun , Huang Chunxiang , Zhang Shiying , Zhang Haitao , Li Zhaosheng , Zou Zhigang
Published: December 2014

In this study, photocatalytic activities of BaZrO3 for CO2 reduction were investigated in detail.
Sputtering-deposition of Ru nanoparticles onto Al2O3 modified with imidazolium ionic liquids: synthesis, characterisation and catalysis
Authors: Foppa Lucas , Luza Leandro , Gual Aitor , Weibel Daniel E. , Eberhardt Dario , Teixeira Sérgio R. , Dupont Jairton
Published: December 2014

Ruthenium nanoparticles obtained by sputtering deposition from the bulk metal onto an ionic-liquid modified alumina are highly active catalysts for the hydrogenation of benzene.
Direct synthesis of size-tunable PbS nanocubes and octahedra and the pH effect on crystal shape control
Authors: Chen Hsiang-Sheng , Wu Szu-Chieh , Huang Michael H.
Published: December 2014

Small PbS nanocrystals were synthesized by a one-pot procedure, but large octahedra were produced by changing the reagent introduction sequence.
Efficient hydrogen release from perhydro-N-ethylcarbazole using catalyst-coated metallic structures produced by selective electron beam melting
Authors: Peters W. , Eypasch M. , Frank T. , Schwerdtfeger J. , Körner C. , Bösmann A. , Wasserscheid P.
Published: December 2014

Perhydro-N-ethyl carbazole is dehydrogenated in continuous flow using a reactor produced by rapid prototyping, releasing hydrogen equivalent to 4.32 kWel L−1.
Cholesterol side chain analogs but not its ether analogs possess cholesterol-lowering activity
Authors: Lei Lin , Wang Xiaobo , Huang Weihuan , Liu Yuwei , Zheng Fangrui , Ma Ka Ying , Li Yuk Man , Wang Lijun , Man Sun Wa , Zhang Chengnan , Chen Zhen-Yu
Published: December 2014

SI is hypocholesterolemic with little absorption, while CE and CM are well absorbed and have no effect on plasma cholesterol.
Hierarchical micro-/mesoporous N- and O-enriched carbon derived from disposable cashmere: a competitive cost-effective material for high-performance electrochemical capacitors
Authors: Zhou Lu , Cao Hui , Zhu Siqi , Hou Linrui , Yuan Changzhou
Published: December 2014

Hierarchical cashmere-derived micro-/mesoporous carbon, as a competitive cost-effective material for advanced electrochemical capacitors, delivered excellent electrochemical capacitance at high rates.
Electrocatalytic recovery of elements from complex mixtures using deep eutectic solvents
Authors: Abbott Andrew P. , Harris Robert C. , Holyoak Fay , Frisch Gero , Hartley Jennifer , Jenkin Gawen R. T.
Published: December 2014

The use of iodine as an electrocatalyst in metal dissolution and recovery is demonstrated with three types of substrate; brass, GaAs and a gold ore.
Non-destructive analyses of bronze artefacts from Bronze Age Hungary using neutron-based methods
Authors: Kiss V. , Fischl K. P. , Horváth E. , Káli Gy. , Kasztovszky Zs. , Kis Z. , Maróti B. , Szabó G.
Published: December 2014

Our paper produces results on production techniques of prehistoric metal artefacts using non-destructive neutron-based methods, considering aspects of heritage protection.
Three-part differential of unlabeled leukocytes with a compact lens-free imaging flow cytometer
Authors: Vercruysse Dries , Dusa Alexandra , Stahl Richard , Vanmeerbeeck Geert , de Wijs Koen , Liu Chengxun , Prodanov Dimiter , Peumans Peter , Lagae Liesbet
Published: December 2014

We assemble a compact lens-free in-line holographic microscope, employ it to image blood cells flowing in a microfluidic chip and perform a three-part leukocyte differential based on the acquired images.
Structural and dynamic basis of acid amido synthetase GH3.1: an investigation of substrate selectivity and major active site access channels
Authors: Wang Xue , Du Juan , Yao Xiaojun
Published: December 2014

Investigation for substrate selectivity and active site access channels of GH3.1, a critical enzyme involved in modulating levels of cellular auxins/IAA.
PredHydroxy: computational prediction of protein hydroxylation site locations based on the primary structure
Authors: Shi Shao-Ping , Chen Xiang , Xu Hao-Dong , Qiu Jian-Ding
Published: December 2014

A predictor PredHydroxy, based on position weight amino acids composition, 8 high-quality indices and support vector machines, is designed to identify hydroxyproline and hydroxylysine sites.
Influence of carbonate on the complexation of Cm(iii) with human serum transferrin studied by time-resolved laser fluorescence spectroscopy (TRLFS)
Authors: Bauer Nicole , Panak Petra J.
Published: December 2014

The influence of carbonate on the complexation of Cm(iii) with transferrin is investigated using TRLFS. The results prove directly that carbonate acts as a synergistic anion for Cm(iii) complexation with transferrin.
Bifunctional redox tagging of carbon nanoparticles
Authors: Poon Jeffrey , Batchelor-McAuley Christopher , Tschulik Kristina , Palgrave Robert G. , Compton Richard G.
Published: December 2014

Despite extensive work on the controlled surface modification of carbon with redox moieties, to date almost all available methodologies involve complex chemistry and are prone to the formation of polymerized multi-layer surface structures. The modification method in this paper provides a generic approach to monolayer modifications of carbon and carbon nanoparticle surfaces.
Pd-catalyzed benzylic C–H oxidation of cyclotriveratrylene – product diversity
Authors: Senthilkumar B. , Gonnade R. G. , Ramana C. V.
Published: December 2014

The inner-rim oxidation of CTV has been explored with palladium and an interesting array of CTV derivatives has been obtained by simple changes in the solvent/conditions employed.
Synthesis, postmodification and fluorescence properties of reduction-cleavable core-couplable miktoarm stars with a branched core
Authors: Li Cangxia , Liu Huanhuan , Tang Dandan , Zhao Youliang
Published: December 2014

Postmodification of (PEG)m(PCL)n miktoarm stars with a dual-reactive branched core allowed the introduction of versatile functionalities, and the coumarin-functionalized star exhibited tunable fluorescence properties sensitive to solvent polarity and reduction stimulus.
Double cyclizative polymerization of trienes catalyzed by Pd complexes. Combined ring-forming and chain-walking reactions of the growing end
Authors: Motokuni Kenya , Takeuchi Daisuke , Osakada Kohtaro
Published: December 2014

Diimine Pd complexes catalyze polymerization of 1,6,13-heptadecatrienes to produce the polymers with two functionalized trans-1,2-cyclopentylene groups and ethylene or pentamethylene spacers between them.
Highly efficient solid polymer electrolytes using ion containing polymer microgels
Authors: Yan Suting , Xie Jianda , Wu Qingshi , Zhou Shiming , Qu Anqi , Wu Weitai
Published: December 2014

A solid polymer electrolyte fabricated using ion containing microgels manifests high ionic conductivity for potential use in lithium batteries.
Supported gold-catalyzed and ammonia-promoted selective synthesis of quinazolines in aqueous media
Authors: Tang Lin , Yang Yu , Wen Lixian , Zhang Sheng , Zha Zhenggen , Wang Zhiyong
Published: December 2014

A highly efficient and selective synthesis of 2,4-disubstituted quinazolines via a hydrogen-transfer strategy was developed under the catalysis of nano-Au/TiO2 and the assistance of nitrogen source-promotion.
Sonophotocatalytic treatment of Bismarck Brown G dye and real textile effluent using synthesized novel Fe(0)-doped TiO2 catalyst
Authors: Dinesh G. Kumaravel , Anandan S. , Sivasankar T.
Published: December 2014

Using a novel Fe(0)-TiO2-doped catalyst, the degradation of Bismarck Brown G dye was compared by means of advanced oxidation processes, such as sonolysis, photolysis (UV light) and sonophotolysis. The sonophotolysis methodology was also adopted for real textile effluent.
Ni/Au hybrid nanoparticle arrays as a highly efficient, cost-effective and stable SERS substrate
Authors: Fu Qun , Wong Kin Mun , Zhou Yi , Wu Minghong , Lei Yong
Published: December 2014

A large-area highly efficient, cost-effective and stable SERS substrate is synthesized with a proposed versatile and simple process.
Laser-assisted synthesis of multi-colored protein dots and their biological distribution in experimental mice using a dye tracking method
Authors: Pandey Sunil , Thakur Mukeshchand , Talib Abou , Khan M. Shahnawaz , Bhaisare Mukesh Lavkush , Wu Shou-Mei , Wu Hui-Fen
Published: December 2014

We report a novel method for the synthesis of ultra-bright green and red colored protein dots (Pr-dots) using continuous and pulse lasers (λ = 534 and 1064 nm) with lysozyme as a precursor in ethanol.
Novel triethylamine catalyzed S → O acetyl migration reaction to generate candidate thiols for construction of topological and functional sulfur-containing polymers
Authors: Wang Gang , Peng Li , Zheng Yaochen , Gao Yanqin , Wu Xuedong , Ren Tianhui , Gao Chao , Han Jin
Published: December 2014

Various sulphur-containing monomers and polymer materials transformed from different epoxy compounds.
Synthesis of Cu(OH)2 and CuO nanotubes arrays on a silicon wafer
Authors: Schlur Laurent , Bonnot Karine , Spitzer Denis
Published: December 2014

Growth of Cu(OH)2 and CuO nanotubes having a diameter of 100 nm on a silicon wafer.
Solution blowing of activated carbon nanofibers for phenol adsorption
Authors: Tao Xiaoxiao , Zhou Guoqing , Zhuang Xupin , Cheng Bowen , Li Xiaojie , Li Hongjun
Published: December 2014

Activated carbon nanofibers fabricated through solution blowing and activation possessed a high special surface area and excellent adsorption capacity.
Direct conversion of cellulose into glycolic acid by a zinc-stabilized UV-Fenton reaction
Authors: She Z. , Wang J. G. , Ni J. P. , Liu X. Q. , Zhang R. Y. , Na H. N. , Zhu J.
Published: December 2014

Direct conversion of cellulose into glycolic acid at mild conditions was realized by a zinc-stabilized UV-Fenton reaction.
Synthesis and properties of molybdenum disulphide: from bulk to atomic layers
Authors: Song Intek , Park Chibeom , Choi Hee Cheul
Published: December 2014

This review paper aims at a general introduction on up-to-date studies on the synthesis and properties of two-dimensional atomic layers of molybdenum disulphide, along with a brief overview on the bulk and three polytypes.
Effective formulation and processing of nanofilled carbon fiber reinforced composites
Authors: Guadagno L. , Raimondo M. , Vietri U. , Vertuccio L. , Barra G. , De Vivo B. , Lamberti P. , Spinelli G. , Tucci V. , Volponi R. , Cosentino G. , De Nicola F.
Published: December 2014

A very simple process to manufacture CFRCs was used. DC conductivity values (20 kS m−1 for the in plane value and 3.9 S m−1 for the out of plane at T = 30 °C) are among the highest values found for CFRCs impregnated with MWCNTs based epoxy-resin.
Unraveling the nature of Turkevich gold nanoparticles: the unexpected role of the dicarboxyketone species
Authors: Grasseschi Daniel , Ando Rômulo A. , Toma Henrique E. , Zamarion Vitor M.
Published: December 2014

In this paper we show how surface coordination chemistry can elucidate one of the reproducibility issues related to the classical synthesis of gold nanoparticles by the Turkevich method.
Preparation of elastic polyurethane microcapsules using CaCO3microparticles as templates for hydrophobic substances loading
Authors: Liu Xiaofan , She Shupeng , Tong Weijun , Gao Changyou
Published: December 2014

Elastic polyurethane (PU) microcapsules were fabricatedviaa simple and well controllable adsorption and crosslinking method on porous CaCO3templates in organic solvent.
Comparison of the synergistic effect of counterions on the inhibition of mild steel corrosion in acid solution: electrochemical, gravimetric and thermodynamic studies
Authors: Bai Li , Feng La-Jun , Wang Hong-Yan , Lu Yong-Bin , Lei Xiao-Wei , Bai Fang-Lin
Published: December 2014

Quinoline quaternary ammonium salts 1-benzylquinoline bromide (1) and 1-benzylquinoline chloride (2) have been synthesized and then developed as corrosion inhibitors in acidic HCl solution.
Synthesis and characterization of rare-earth-free magnetic manganese bismuth nanocrystals
Authors: Shen Jian , Cui Huizhong , Huang Xiaopeng , Gong Maogang , Qin Wei , Kirkeminde Alec , Cui Jun , Ren Shenqiang
Published: December 2014

Magnetic MnBi nanocrystals are synthesized and exchange coupled with magnetically soft phase to enhance its energy product.
Graphene oxide–TiO2 composite as a novel adsorbent for the preconcentration of heavy metals and rare earth elements in environmental samples followed by on-line inductively coupled plasma optical emission spectrometry detection
Authors: Zhang Yanan , Zhong Cheng , Zhang Qiangying , Chen Beibei , He Man , Hu Bin
Published: December 2014

GO–TiO2 composite as a novel adsorbent for the preconcentration of heavy metals and rare earth elements in environmental samples.
Novel menthol releaser derived from as-synthesized mesoporous silica
Authors: Ming Dong Xin Yu , Li Yan Yan , Wei Feng , Zhou Yu , Zhou Shi Lu , Zhu Jian Hua
Published: December 2014

Menthol could be adsorbed in as-synthesized MCM-41 at 373 K, open stored in ambient for 30 days and released at 333 K.
Carbon dots as fluorescent off–on nanosensors for ascorbic acid detection
Authors: Gong Jun , Lu Xin , An Xueqin
Published: December 2014

A fluorescent C-dots/Fe3+ nanosensor with an off–on switch was established for ascorbic acid detection.
Copper catalyzed room temperature lactonization of aromatic C–H bond: a novel and efficient approach for the synthesis of dibenzopyranones
Authors: Singha Raju , Dhara Shubhendu , Ghosh Munmun , Ray Jayanta K.
Published: December 2014

A novel and efficient methodology has been developed for the intramolecular aryl C–H oxidative lactonization of 2-arylbenzaldehyde using a low-cost CuCl catalyst and TBHP as the oxidant at room temperature.
Polyaniline/graphene hybrid film as an effective broadband electromagnetic shield
Authors: Mohan Ranjini R. , Varma Sreekanth J. , Faisal Muhammad , S Jayalekshmi
Published: December 2014

Polyaniline–graphene hybrid films exhibit reflection dominated EMI shielding in a broad microwave frequency range.
Synthesis of furo[3,4-c]quinolin-3(1H)-one derivatives through TMG catalyzed intramolecular aza-MBH reaction based on the furanones
Authors: Yin Dawei , Wang Wei , Peng Yangqiu , Ge Zemei , Cheng Tieming , Wang Xin , Li Runtao
Published: December 2014

The first TMG catalyzed intramolecular aza-MBH reaction based on furanone derivatives for the construction of furo[3,4-c]quinolin-3(1H)-ones scaffold.
Fabrication of a smooth, large-grained Cu(In,Ga)Se2 thin film using a Cu/(In,Ga)2Se3 stacked precursor at low temperature for CIGS solar cells
Authors: Jung Gwang Sun , Mun Sun Hong , Shin Donghyeop , Chalapathy R. B. V. , Ahn Byung Tae , Kwon Hyuksang
Published: December 2014

Grain growth of CIGS thin film assisted by liquid CuIn from Cu/(In,Ga)2Se3 stacked precursor.
Laboratory simulation of microbial enhanced oil recovery using Geobacillus toebii R-32639 isolated from the Handil reservoir
Authors: Fulazzaky Mohammad , Astuti Dea Indriani , Fulazzaky Mohamad Ali
Published: December 2014

In this study, artificial cores are used to simulate the application of microbial enhanced oil recovery by three scenarios: injecting nutrients, microbial culture and bioproducts.
Continuous flow vortex fluidic synthesis of silica xerogel as a delivery vehicle for curcumin
Authors: Tong Chee Ling , Stroeher Uwe H. , Brown Melissa H. , Raston Colin L.
Published: December 2014

Sol–gel synthesis of silica xerogel using a continuous flow vortex fluidic device at room temperature is effective in direct incorporation of preformed curcumin particles, which has antimicrobial activity against Staphylococcus aureus.
PEGylated CsxWO3 nanorods as an efficient and stable 915 nm-laser-driven photothermal agent against cancer cells
Authors: Xu Wenju , Meng Zhouqi , Yu Nuo , Chen Zhigang , Sun Bin , Jiang Xiaoze , Zhu Meifang
Published: December 2014

PEGylated CsxWO3 nanorods were prepared, and they exhibited excellent photothermal performance and high stability for the ablation of cancer cells in vivo.
Rigid three-dimensional Ni3S4nanosheet frames: controlled synthesis and their enhanced electrochemical performance
Authors: Wang Lina , Liu Jiajia , Zhang Li Li , Dai Baosong , Xu Meng , Ji Muwei , Zhao X. S. , Cao Chuanbao , Zhang Jiatao , Zhu Hesun
Published: December 2014

Rigid three-dimensional (3D) Ni3S4nanosheet frames assembled from ultrathin nanosheets are synthesizedviaa facile solvothermal method.
Transformable H-bonds and conformation in compressed glucose
Authors: Patyk Ewa , Katrusiak Andrzej
Published: December 2014

Upon pressurisation above 5.4 GPa, α-d-glucose transforms into a new polymorph, with an altered molecular conformation and with intermolecular hydrogen bonds reshuffled.
Quantitative analogy between polymer-grafted nanoparticles and patchy particles
Authors: Asai Makoto , Cacciuto Angelo , Kumar Sanat K.
Published: December 2014

We establish a quantitative analogy between polymer grafted nanoparticles (PGNPs) and patchy nanoparticles (NPs).
Anisotropic oxide ion conduction in melilite intermediate temperature electrolytes
Authors: Wei Fengxia , Gasparyan Hripsime , Keenan Philip J. , Gutmann Matthias , Fang Yanan , Baikie Tom , Claridge John B. , Slater Peter R. , Kloc Christian L. , White Tim J.
Published: December 2014

Melilite, a tetrahedral-layered structure, shows strong anisotropic oxygen ion conduction at intermediate temperatures, which can be controlled by increasing the number of interstitial oxygen and reducing the size of interlayer cations.
Superwetting polymer-decorated SWCNT composite ultrathin films for ultrafast separation of oil-in-water nanoemulsions
Authors: Gao Shou Jian , Zhu Yu Zhang , Zhang Feng , Jin Jian
Published: December 2014

Polymer-decorated single-walled carbon nanotube ultrathin films with a superhydrophilic property were fabricated for the separation of oil-in-water nanoemulsions with high flux.
Conjugated microporous polymers with excellent electrochemical performance for lithium and sodium storage
Authors: Zhang Shengliang , Huang Wei , Hu Pu , Huang Changshui , Shang Chaoqun , Zhang Chuanjian , Yang Renqiang , Cui Guanglei
Published: December 2014

Conjugated microporous polymers are explored as high-performance electrode materials for lithium and sodium storage, exhibiting excellent electrochemical performance.
Graphene microsheets from natural microcrystalline graphite minerals: scalable synthesis and unusual energy storage
Authors: Wang Junying , Huang Jianlin , Yan Rui , Wang Faxing , Cheng Wengang , Guo Quangui , Wang Junzhong
Published: December 2014

Graphene microsheets, directly and efficiently produced from natural microcrystalline graphite mineral, reached 390 mA h g−1 after 220 cycles as a battery anode.
A high-rate aqueous symmetric pseudocapacitor based on highly graphitized onion-like carbon/birnessite-type manganese oxide nanohybrids
Authors: Makgopa Katlego , Ejikeme Paul M. , Jafta Charl J. , Raju Kumar , Zeiger Marco , Presser Volker , Ozoemena Kenneth I.
Published: December 2014

The carbon onion/birnessite-type manganese oxide nanohybrid symmetric pseudocapacitor exhibits excellent capacitive properties compared to the conventional carbon onion symmetric supercapacitor.
Functional silsesquioxane-based hierarchical assemblies for antibacterial/antifungal coatings
Authors: Bordianu Irina-Elena , David Geta , Simionescu Bogdana , Aflori Magdalena , Ursu Cristian , Coroaba Adina , Hitruc Gabriela , Cotofana Corneliu , Olaru Mihaela
Published: December 2014

This paper reports the first study on functional silsesquioxane-based hierarchical assemblies containing an ordered distribution of silver nanoparticles with a large number of {111} facets, obtained through sol–gel reaction, intended for antibacterial/antifungal coatings.
The regulatory role of Streptomyces coelicolor TamR in central metabolism
Authors: Huang Hao , Sivapragasam Smitha , Grove Anne
Published: December 2014

Trans-aconitate methyltransferase regulator (TamR) is a member of the ligand-responsive multiple antibiotic resistance regulator (MarR) family of transcription factors. In Streptomyces coelicolor, TamR regulates transcription of tamR (encoding TamR), tam (encoding trans-aconitate methyltransferase) and sacA (encoding aconitase); up-regulation of these genes promotes metabolic flux through the citric acid cycle. DNA binding by TamR is attenuated and transcriptional derepression is achieved on binding of ligands such as citrate and trans-aconitate to TamR. In the present study, we show that three additional genes are regulated by S. coelicolor TamR. Genes encoding malate synthase (aceB1; SCO6243), malate dehydrogenase (mdh; SCO4827) and isocitrate dehydrogenase (idh; SCO7000) are up-regulated in vivo when citrate and trans-aconitate accumulate, and TamR binds the corresponding gene promoters in vitro, a DNA binding that is attenuated by cognate ligands. Mutations to the TamR binding site attenuate DNA binding in vitro and result in constitutive promoter activity in vivo. The predicted TamR binding sites are highly conserved in the promoters of these genes in Streptomyces species that encode divergent tam–tamR gene pairs, suggesting evolutionary conservation. Like aconitase and trans-aconitate methyltransferase, malate dehydrogenase, isocitrate dehydrogenase and malate synthase are closely related to the citric acid cycle, either catalysing individual reaction steps or, in the case of malate synthase, participating in the glyoxylate cycle to produce malate that enters the citric acid cycle to replenish the intermediate pool. Taken together, our data suggest that TamR plays an important and conserved role in promoting metabolic flux through the citric acid cycle.
TARP γ-8 glycosylation regulates the surface expression of AMPA receptors
Authors: Zheng Chan-Ying , Chang Kai , Suh Young Ho , Roche Katherine W.
Published: December 2014

TARP [transmembrane AMPA (α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor regulatory protein] γ-8 is an auxiliary subunit of AMPA receptors that is widely distributed in the hippocampus. It has been shown that TARP γ-8 promotes surface expression of AMPA receptors; however, how TARP γ-8 regulates the expression of AMPA receptors remains unclear. In the present study, we examined the effect of TARP glycosylation on AMPA receptor trafficking. We first showed that TARP γ-8 is an N-glycosylated protein, which contains two glycosylation sites, Asn53 and Asn56, and compared this with the glycosylation of TARP γ-2 and the AMPA receptor auxiliary protein CNIH-2 (cornichon homologue 2). We next examine the effect of TARP glycosylation on TARP trafficking and also on AMPA receptor surface expression. We find that TARP γ-8 glycosylation is critical for surface expression of both TARP γ-8 and GluA1 in heterologous cells and neurons. Specifically, knockdown of TARP γ-8 causes a decrease in both total and surface AMPA receptors. We find that the expression of unglycosylated TARP γ-8 in cultured neurons is unable to restore GluA1 expression fully. Furthermore, when the maturation of TARP γ-8 is impaired, a large pool of immature GluA1 is retained intracellularly. Taken together, our data reveal an important role for the maturation of TARP γ-8 in the trafficking and function of the AMPA receptor complex.
Catalytic surface radical in dye-decolorizing peroxidase: a computational, spectroscopic and site-directed mutagenesis study
Authors: Linde Dolores , Pogni Rebecca , Cañellas Marina , Lucas Fátima , Guallar Victor , Baratto Maria Camilla , Sinicropi Adalgisa , Sáez-Jiménez Verónica , Coscolín Cristina , Romero Antonio , Medrano Francisco Javier , Ruiz-Dueñas Francisco J. , Martínez Angel T.
Published: December 2014

Dye-decolorizing peroxidase (DyP) of Auricularia auricula-judae has been expressed in Escherichia coli as a representative of a new DyP family, and subjected to mutagenic, spectroscopic, crystallographic and computational studies. The crystal structure of DyP shows a buried haem cofactor, and surface tryptophan and tyrosine residues potentially involved in long-range electron transfer from bulky dyes. Simulations using PELE (Protein Energy Landscape Exploration) software provided several binding-energy optima for the anthraquinone-type RB19 (Reactive Blue 19) near the above aromatic residues and the haem access-channel. Subsequent QM/MM (quantum mechanics/molecular mechanics) calculations showed a higher tendency of Trp-377 than other exposed haem-neighbouring residues to harbour a catalytic protein radical, and identified the electron-transfer pathway. The existence of such a radical in H2O2-activated DyP was shown by low-temperature EPR, being identified as a mixed tryptophanyl/tyrosyl radical in multifrequency experiments. The signal was dominated by the Trp-377 neutral radical contribution, which disappeared in the W377S variant, and included a tyrosyl contribution assigned to Tyr-337 after analysing the W377S spectra. Kinetics of substrate oxidation by DyP suggests the existence of high- and low-turnover sites. The high-turnover site for oxidation of RB19 (kcat> 200 s−1) and other DyP substrates was assigned to Trp-377 since it was absent from the W377S variant. The low-turnover site/s (RB19 kcat ~20 s−1) could correspond to the haem access-channel, since activity was decreased when the haem channel was occluded by the G169L mutation. If a tyrosine residue is also involved, it will be different from Tyr-337 since all activities are largely unaffected in the Y337S variant.