bluuebunny/crossref_metadata_2025 huggingface dataset:
The MIL-88A-Derived Fe3O4-Carbon Hierarchical Nanocomposites for Electrochemical Sensing
Authors: Wang Li , Zhang Yayun , Li Xia , Xie Yingzhen , He Juan , Yu Jie , Song Yonghai
Published: September 2015

Metal or metal oxides/carbon nanocomposites with hierarchical superstructures have become one of the most promising functional materials in sensor, catalysis, energy conversion, etc. In this work, novel hierarchical Fe3O4/carbon superstructures have been fabricated based on metal-organic frameworks (MOFs)-derived method. Three kinds of Fe-MOFs (MIL-88A) with different morphologies were prepared beforehand as templates and then pyrolyzed to fabricate the corresponding novel hierarchical Fe3O4/carbon superstructures. The systematic studies on the thermal decomposition process of the three kinds of MIL-88A and the effect of template morphology on the products were carried out in detail. Scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy and thermal analysis were employed to investigate the hierarchical Fe3O4/carbon superstructures. Based on these resulted hierarchical Fe3O4/carbon superstructures, a novel and sensitive nonenzymatic N-acetyl cysteine sensor was developed. The porous and hierarchical superstructures and large surface area of the as-formed Fe3O4/carbon superstructures eventually contributed to the good electrocatalytic activity of the prepared sensor towards the oxidation of N-acetyl cysteine. The proposed preparation method of the hierarchical Fe3O4/carbon superstructures is simple, efficient, cheap and easy to mass production. It might open up a new way for hierarchical superstructures preparation.
The energy blockers bromopyruvate and lonidamine lead GL15 glioblastoma cells to death by different p53-dependent routes
Authors: Davidescu Magdalena , Macchioni Lara , Scaramozzino Gaetano , Cristina Marchetti Maria , Migliorati Graziella , Vitale Rita , Corcelli Angela , Roberti Rita , Castigli Emilia , Corazzi Lanfranco
Published: September 2015

The energy metabolism of tumor cells relies on aerobic glycolysis rather than mitochondrial oxidation. This difference between normal and cancer cells provides a biochemical basis for new therapeutic strategies aimed to block the energy power plants of cells. The effects produced by the energy blockers bromopyruvate (3BP) and lonidamine (LND) and the underlying biochemical mechanisms were investigated in GL15 glioblastoma cells. 3BP exerts early effects compared to LND, even though both drugs lead cells to death but by different routes. A dramatic decrease of ATP levels occurred after 1 hour treatment with 3BP, followed by cytochrome c and hexokinase II degradation and by the decrease of both LC3I/LC3II ratio and p62, markers of an autophagic flux. In addition, Akt(Ser473) and p53(Ser15/Ser315) dephosphorylation occurred. In LND treatment, sustained ATP cellular levels were maintained up to 40 hours. The autophagic response of cells was overcome by apoptosis that was preceded by phosphatidylinositol disappearance and pAkt decrease. This last event favored p53 translocation to mitochondria triggering a p53-dependent apoptotic route, as observed at 48 and 72 hours. Adversely, in 3BP treatment, phospho-p53 dephosphorylation targeted p53 to MDM2-dependent proteolysis, thus channeling cells to irreversible autophagy.
An upconversion fluorescent resonant energy transfer biosensor for hepatitis B virus (HBV) DNA hybridization detection
Authors: Zhu Hao , Lu Feng , Wu Xing-Cai , Zhu Jun-Jie
Published: September 2015

A novel upconversion fluorescent resonant energy transfer biosensor was fabricated for Hepatitis B virus DNA hybridization detection.
Simultaneous determination ofl-ascorbic acid and dehydroascorbic acid in human plasma
Authors: Kim Yunjeong , Ha Na , Kim Min-Gul
Published: September 2015

A method combining high-performance liquid chromatography with ultraviolet detection (HPLC-UV) was developed and validated for the accurate determination ofl-ascorbic acid (AA) and dehydroascorbic acid (DHAA) concentrations in human plasma.
Classification of different types of slag samples by laser-induced breakdown spectroscopy (LIBS) coupled with random forest based on variable importance (VIRF)
Authors: Tang Hongsheng , Zhang Tianlong , Yang Xiaofeng , Li Hua
Published: September 2015

A LIBS technique coupled with random forest based on variable importance (VIRF) was presented for the classification analysis of slag samples (open-hearth furnace slag, converter slag and high titanium slag).
Solid phase polymerization of phenylenediamine toward a self-supported FeNx/C catalyst with high oxygen reduction activity
Authors: Su Xiaogang , Liu Jianguo , Yao Yingfang , You Yong , Zhang Xiang , Zhao Canyun , Wan Hong , Zhou You , Zou Zhigang
Published: September 2015

The oxygen reduction activity of PpPD–Fe–ZnO in acid medium is rather high, reaching 21.9 A g−1 at 0.80 V (vs. RHE).
Highly active self-immobilized FI-Zr catalysts in a PCP framework for ethylene polymerization
Authors: Li He , Xu Bo , He Jianghao , Liu Xiaoming , Gao Wei , Mu Ying
Published: September 2015

FI catalysts in PCPs show good catalytic performances and produce high molecular weight polyethylenes with bimodal molecular weight distribution.
Palladium-catalyzed three-component reaction of N-tosyl hydrazones, isonitriles and amines leading to amidines
Authors: Dai Qiang , Jiang Yan , Yu Jin-Tao , Cheng Jiang
Published: September 2015

A palladium-catalyzed three-component reaction between N-tosyl hydrazones, aryl isonitriles and amines was developed, leading to amidines in moderate to good yields.
The CoTe2nanostructure: an efficient and robust catalyst for hydrogen evolution
Authors: Lu Tzu-Hsiang , Chen Chih-Jung , Basu Mrinmoyee , Ma Chong-Geng , Liu Ru-Shi
Published: September 2015

Cobalt ditelluride nanoparticles in a diameter range of 20–50 nm were synthesized as a new electrocatalyst for the hydrogen evolution reaction in 0.50 M H2SO4(aq).
Fluorine-controlled C–H borylation of arenes catalyzed by a PSiN-pincer platinum complex
Authors: Takaya Jun , Ito Shisei , Nomoto Hironori , Saito Narumasa , Kirai Naohiro , Iwasawa Nobuharu
Published: September 2015

Fluorine-controlled C–H borylation of fluoroarenes catalyzed by a PSiN–platinum complex.
Selective recognition and extraction of KBr via cooperative interactions with a urea functionalized crown ether dual-host
Authors: Akhuli Bidyut , Ghosh Pradyut
Published: September 2015

Selective solid–liquid extraction of KBr is demonstrated for the first time with a crown ether based pentafluorophenyl urea functionalised dual-host receptor.
Optical recognition of alkyl nitrile by a homochiral iron(ii) spin crossover host
Authors: Qin Long-Fang , Pang Chun-Yan , Han Wang-Kang , Zhang Feng-Li , Tian Lei , Gu Zhi-Guo , Ren Xuehong , Li Zaijun
Published: September 2015

In this work, a chiral mononuclear spin crossover host1·MeCN was found to have the ability to optically recognize lactonitrile (LN) and methylglutaronitrile (MGN).
Fluid phase interface properties of acetone, oxygen, nitrogen and their binary mixtures by molecular simulation
Authors: Eckelsbach Stefan , Vrabec Jadran
Published: September 2015

Vapor–liquid equilibria (VLE) of the pure substances acetone, oxygen and nitrogen as well as their binary mixtures are studied by molecular dynamics (MD) simulation with a direct approach.
Photoswitching the mechanical properties in Langmuir layers of semifluorinated alkyl-azobenzenes at the air–water interface
Authors: Theodoratou Antigoni , Jonas Ulrich , Loppinet Benoit , Geue Thomas , Stangenberg René , Li Dan , Berger Rüdiger , Vlassopoulos Dimitris
Published: September 2015

Manipulation of the structure and dynamics of semifluorinated alkyl-azobenzene layers at the air–water interface by an external light stimulus suggests ways of tailoring responsive fluid interfaces.
Catalytic potential of highly defective (211) surfaces of zinc blende ZnO
Authors: Tang Chunguang , Wilson Hugh F. , Spencer Michelle J. S. , Barnard Amanda S.
Published: September 2015

The special structure of the zinc blende ZnO surface (211) results in its polarity, high energy and stabilized surface defects.
Spontaneous electric fields in solid carbon monoxide
Authors: Lasne Jérôme , Rosu-Finsen Alexander , Cassidy Andrew , McCoustra Martin R. S. , Field David
Published: September 2015

Reflection–absorption infrared spectroscopy (RAIRS) is shown to provide a means of observing the spontelectric phase of matter, the defining characteristic of which is the occurrence of a spontaneous and powerful static electric field within a film of material.
Kinetic modeling of the adsorption and desorption of CO2 on α-Fe2O3
Authors: Breyer Christine , Reichert Dirk , Seidel Juergen , Hüttl Regina , Mertens Florian , Kureti Sven
Published: September 2015

A kinetic model is developed to describe the formation and decomposition of carbonate species on Fe2O3.
Dynamics of polyzwitterions in salt-free and salt solutions
Authors: Cao Zhonglin , Zhang Guangzhao
Published: September 2015

The effective charging of a polyzwitterion chain varies with NaCl concentration. Dynamics of polyzwitterions is mediated by the interchain electrostatic repulsion and intrachain attraction.
Highly efficient exciton harvesting and charge transport in ternary blend solar cells based on wide- and low-bandgap polymers
Authors: Wang Yanbin , Ohkita Hideo , Benten Hiroaki , Ito Shinzaburo
Published: September 2015

Ternary blend solar cells using a crystalline wide-bandgap P3HT and a low-bandgap PSBTBT exhibit good exciton harvesting and charge transport.
A facile method of activating graphitic carbon nitride for enhanced photocatalytic activity
Authors: Liao Yongliang , Zhu Shenmin , Chen Zhixin , Lou Xianghong , Zhang Di
Published: September 2015

Activated g-C3N4 with a distinct and efficient degradation process under visible-light irradiation was fabricated by using a chemical activation method.
Coordination polymers of ZnIIand 5-methoxy isophthalate
Authors: McCormick Laura J. , Morris Samuel A. , Teat Simon J. , McPherson Matthew J. , Slawin Alexandra M. Z. , Morris Russell E.
Published: September 2015

Four different coordination polymers were prepared by reaction of Zn(OAc)2and 5-methoxy isophthalic acid using various aqueous/aqueous alcohol solvent systems.
Catalytic transfer hydrogenation of biomass-derived 5-hydroxymethyl furfural to the building block 2,5-bishydroxymethyl furan
Authors: Hao Weiwei , Li Weifeng , Tang Xing , Zeng Xianhai , Sun Yong , Liu Shijie , Lin Lu
Published: September 2015

Catalytic transfer hydrogenation of biomass-derived HMF to the building block BHMF via MPV reduction over ZrO(OH)2 using ethanol as the hydrogen donor.
Lignin oxidation and depolymerisation in ionic liquids
Authors: Prado R. , Brandt A. , Erdocia X. , Hallet J. , Welton T. , Labidi J.
Published: September 2015

The depolymerisation of lignin directly in the black liquor was studied, comparing two ionic liquids as extracting solvents (butylimidazolium hydrogen sulphate and triethylammonium hydrogen sulphate), under oxidising conditions.
Implantable wireless battery recharging system for bladder pressure chronic monitoring
Authors: Young Darrin J. , Cong Peng , Suster Michael A. , Damaser Margot
Published: September 2015

This paper presents an implantable wireless battery recharging system design for bladder pressure chronic monitoring.
Numerical simulation of acoustofluidic manipulation by radiation forces and acoustic streaming for complex particles
Authors: Hahn Philipp , Leibacher Ivo , Baasch Thierry , Dual Jurg
Published: September 2015

A numerical simulation setup to predict the motion of arbitrarily-shaped particles under the simultaneous effects of streaming and radiation forces.
Mechanisms of resistance to aminoglycoside antibiotics: overview and perspectives
Authors: Garneau-Tsodikova Sylvie , Labby Kristin J.
Published: September 2015

The newest information (2010-present) on the four main mechanisms of resistance to the broad-spectrum aminoglycoside antibiotics is presented in details.
Synthesis and acid–base properties of a proton-bridged biaryl compound based on pyridylazulene
Authors: Ninomiya Kazuki , Harada Yumi , Kanetou Tomoaki , Suenaga Yuma , Murafuji Toshihiro , Tsunashima Ryo
Published: September 2015

We report the synthesis and acid–base properties of 1,1′-bi(2-pyridylazulene) and the crystal structure of its mono-protonated form in which pyridyl moieties are interacted by an intramolecular hydrogen bond.
The role of atropisomers on the photo-reactivity and fatigue of diarylethene-based metal–organic frameworks
Authors: Walton Ian M. , Cox Jordan M. , Benson Cassidy A. , Patel Dinesh (Dan) G. , Chen Yu-Sheng , Benedict Jason B.
Published: September 2015

Stabilization of unfavorable rotational isomers within the nanoporous crystalline matrix reduces the useful lifetime of this photo-switchable material.
Physioelectrochemical investigation of the supercapacitive performance of a ternary nanocomposite by common electrochemical methods and fast Fourier transform voltammetry
Authors: Shayeh Javad Shabani , Ehsani Ali , Nikkar Ayda , Norouzi Parviz , Ganjali Mohammad Reza , Wojdyla Mateusz
Published: September 2015

Fast Fourier transform continuous cyclic voltammetry as a new technique for the explanation of a composite electrode for supercapacitors.
Promising wet chemical strategies to synthesize Cu nanowires for emerging electronic applications
Authors: Ravi Kumar D. V. , Woo Kyoohee , Moon Jooho
Published: September 2015

This review summarizes the wet chemical synthesis strategies, properties, and applications of copper nanowires.
Heterodimers formed through a partial anionic exchange process: scanning tunneling spectroscopy to monitor bands across the junction vis-à-vis photoinduced charge separation
Authors: Bera Abhijit , Saha Sudip K. , Pal Amlan J.
Published: September 2015

With a control over the duration of an anionic exchange process, bulk|dot, bulk|bulk, and dot|bulk phases of CdS|CdTe heterodimers were formed. The depletion region had a direct correlation with the photoinduced charge separation process in the heterodimers.
Cross-dehydrogenative coupling of α-C(sp3)–H of ethers/alkanes with C(sp2)–H of heteroarenes under metal-free conditions
Authors: Ambala Srinivas , Thatikonda Thanusha , Sharma Shweta , Munagala Gurunadham , Yempalla Kushalava Reddy , Vishwakarma Ram A. , Singh Parvinder Pal
Published: September 2015

A metal-free cross-dehydrogenative coupling method between α-oxyalkyl/alkyl radicals and electron deficient heteroarenes is reported.
Visible-light-promoted chloramination of olefins with N-chlorosulfonamide as both nitrogen and chlorine sources
Authors: Qin Qixue , Ren Daan , Yu Shouyun
Published: September 2015

A visible-light-promoted chloramination of olefins is reported.
Isoreticular synthesis of 2D MOFs with rotating aryl rings
Authors: Hughes Brianna C. , Murdock Christopher R. , Jenkins David M.
Published: September 2015

A series of isoreticular two-dimensional metal–organic frameworks (MOFs) was synthesized with group 11 metals and semirigid ligands that bind in a syn conformation.
Divergent synthesis of indole-fused polycycles via Rh(ii)-catalyzed intramolecular [3 + 2] cycloaddition and C–H functionalization of indolyltriazoles
Authors: Zhang Yong-Sheng , Tang Xiang-Ying , Shi Min
Published: September 2015

Intramolecular formal [3 + 2] cycloaddition and C–H functionalization ofN-sulfonyl triazoles with indoles have been developed to synthesize potential indole-fused polycycles.
Polyethylene glycol-400/H3PO2: an eco-friendly reductive system for the synthesis of selanylesters
Authors: Perin G. , Silveira M. B. , Barcellos A. M. , Jacob R. G. , Alves D.
Published: September 2015

An alternative green method was described for the synthesis of selanylesters by reactions of acyl chlorides with arylselenols, generatedin situby reaction of diaryl diselenides with hypophosphorous acid (H3PO2) using polyethylene glycol-400 (PEG-400) as the solvent.
Inorganic microcapsules mineralized at the interface of water droplets in ethanol solution and their application as drug carriers
Authors: Su Yingchun , Zong Wei , Zhao Xiaole , Ma Shenghua , Han Xiaojun
Published: September 2015

A crystallization – dissolution – interface mineralization (CDIM) method was reported to synthesize pH biocompatible and sensitive calcium carbonate (CaC) and calcium phosphate (CaP) inorganic microcapsules with potential on drug delivery.
Isolation of Bacillus amyloliquefaciens JK6 and identification of its lipopeptides surfactin for suppressing tomato bacterial wilt
Authors: Xiong Hanqin , Li Yongtao , Cai Yanfei , Cao Yu , Wang Yan
Published: September 2015

A rhizobacteria strain, B. amyloliquefaciens JK6, isolated from the rhizosphere soil of healthy tomato plants, significantly inhibited Ralstonia solanacearum (RS).
Facile solvothermal synthesis of high refractive index ZrO2 spheres: estimation of the enhanced light extraction efficiency
Authors: Park Jin Young , Rama Raju G. Seeta , Moon Byung Kee , Jeong Jung Hyun
Published: September 2015

LightTools simulation results revealed that the light extraction efficiency of an LED has been improved to 70.12% when ZrO2 spheres were coated on the GaN surface.
Synthesis and characterization of hyaluronic acid–platinum(iv) nanoconjugate with enhanced antitumor response and reduced adverse effects
Authors: Ling Xiang , Zhao Chunyang , Huang Liping , Wang Qiyue , Tu Jiasheng , Shen Yan , Sun Chunmeng
Published: September 2015

HA–EDA–Pt(iv) nanoconjugates were constructed, characterized, and proved as an safe formulation with better blood compatibility and less systemic toxicity.
Design of a live biochip for in situ nanotoxicology studies: a proof of concept
Authors: Béatrice Schaack , Wei Liu , Alain Thiéry , Aurélien Auger , Jean-François Hochepied , Mathieu Castellan , Christine Ebel , Corinne Chaneac , Wafa Achouak
Published: September 2015

This paper highlights the way in which eukaryotic cell and bacteria based biochips are relevant for nanotoxicological risk assessment.
Clogging of granular materials in silos: effect of gravity and outlet size
Authors: Arévalo Roberto , Zuriguel Iker
Published: September 2015

By means of extensive numerical simulations we disclose the role of the driving force in the clogging of inert particles passing through a constriction.
Turning periodic mesoporous organosilicas selective to CO2/CH4separation: deposition of aluminium oxide by atomic layer deposition
Authors: Lourenço Mirtha A. O. , Silva Ricardo M. , Silva Rui F. , Pinna Nicola , Pronier Stephane , Pires João , Gomes José R. B. , Pinto Moisés L. , Ferreira Paula
Published: September 2015

Atomic layer deposition of aluminium oxide onto periodic mesoporous organosilica can be used to produce composites with enhanced functional characteristics.
Effects of 4-tert-butylpyridine on perovskite formation and performance of solution-processed perovskite solar cells
Authors: Shi Yantao , Wang Xiangyuan , Zhang Hong , Li Bo , Lu Huilan , Ma Tingli , Hao Ce
Published: September 2015

The facile use of TBP generated notable improvements on perovskite crystallinity and photovoltaic performance of perovskite solar cells.
Synchronisation of discrete‐time complex networks with delayed heterogeneous impulses
Authors: Li Zhen , Zhang Wenbing , Fang Jian‐An , He Guang
Published: September 2015

In this study, the synchronisation problem is investigated for discrete‐time complex networks with delayed heterogeneous impulses. Heterogeneous impulses are a form of inhomogeneous impulse, which means that the impulsive strengths depend on both time and space domains. To describe more appropriately impulsive effects, both heterogeneous impulsive effects and impulsive input delays are considered. Employing the Razumikhin theorem and constructing a time‐dependent Lyapunov function, several sufficient criteria are derived to ensure exponential synchronisation of the discrete‐time complex networks with delayed heterogeneous impulsive effects. The derived criteria are formulated in terms of linear matrix inequalities, in which the impulsive intervals, impulsive input delays and impulsive strengths play an important role. Finally, an example is delivered to illustrate the effectiveness of the proposed synchronisation criteria.
High step‐up isolated resonant converter with voltage quadrupler rectifier and dual‐phase‐shift control
Authors: Wu Hongfei , Xia Tian , Zhan Xiaohai , Xing Yan
Published: September 2015

An isolated resonant converter with voltage‐quadrupler rectifier (VQR) and dual‐phase‐shift (DPS) control strategy is proposed for high step‐up and wide voltage range applications. The VQR is composed of a resonant‐type voltage doubler and a conventional voltage doubler. The output voltage is improved and the voltage stresses of the secondary‐side devices are reduced significantly. Hence, low voltage‐rated switches and diodes with better switching and conduction performances can be applied to improve the efficiency. The DPS modulation strategy is adopted to implement the boost and buck modes operation, and to achieve wide voltage gain range. With the DPS control strategy, zero‐voltage switching performance is achieved for both the primary and secondary sides power devices, and zero‐current switching is achieved for all of the diodes within the entire voltage and load ranges. The operational principles and characteristics of the proposed converter are presented in detail. The analysis and performance have been fully validated experimentally on a 400 V/400 W output hardware prototype.
Accurate and precise determination of critical properties from Gibbs ensemble Monte Carlo simulations
Authors: Dinpajooh Mohammadhasan , Bai Peng , Allan Douglas A. , Siepmann J. Ilja
Published: September 2015

Since the seminal paper by Panagiotopoulos [Mol. Phys. 61, 813 (1997)], the Gibbs ensemble Monte Carlo (GEMC) method has been the most popular particle-based simulation approach for the computation of vapor–liquid phase equilibria. However, the validity of GEMC simulations in the near-critical region has been questioned because rigorous finite-size scaling approaches cannot be applied to simulations with fluctuating volume. Valleau [Mol. Simul. 29, 627 (2003)] has argued that GEMC simulations would lead to a spurious overestimation of the critical temperature. More recently, Patel et al. [J. Chem. Phys. 134, 024101 (2011)] opined that the use of analytical tail corrections would be problematic in the near-critical region. To address these issues, we perform extensive GEMC simulations for Lennard-Jones particles in the near-critical region varying the system size, the overall system density, and the cutoff distance. For a system with N = 5500 particles, potential truncation at 8σ and analytical tail corrections, an extrapolation of GEMC simulation data at temperatures in the range from 1.27 to 1.305 yields Tc = 1.3128 ± 0.0016, ρc = 0.316 ± 0.004, and pc = 0.1274 ± 0.0013 in excellent agreement with the thermodynamic limit determined by Potoff and Panagiotopoulos [J. Chem. Phys. 109, 10914 (1998)] using grand canonical Monte Carlo simulations and finite-size scaling. Critical properties estimated using GEMC simulations with different overall system densities (0.296 ≤ ρt ≤ 0.336) agree to within the statistical uncertainties. For simulations with tail corrections, data obtained using rcut = 3.5σ yield Tc and pc that are higher by 0.2% and 1.4% than simulations with rcut = 5 and 8σ but still with overlapping 95% confidence intervals. In contrast, GEMC simulations with a truncated and shifted potential show that rcut = 8σ is insufficient to obtain accurate results. Additional GEMC simulations for hard-core square-well particles with various ranges of the attractive well and for n-decane molecules represented by the TraPPE force field yield data that support the trends observed for Lennard-Jones particles. The finite-size dependence of the critical properties obtained from GEMC simulations is significantly smaller than those from grand-canonical ensemble simulations. Thus, when resources are not available for a rigorous finite-size scaling study, GEMC simulations provide a straightforward route to determine fairly accurate critical properties using relatively small system sizes.
Investigating the atomic level influencing factors of glass forming ability in NiAl and CuZr metallic glasses
Authors: Sedighi Sina , Kirk Donald Walter , Singh Chandra Veer , Thorpe Steven John
Published: September 2015

Bulk metallic glasses are a relatively new class of amorphous metal alloy which possess unique mechanical and magnetic properties. The specific concentrations and combinations of alloy elements needed to prevent crystallization during melt quenching remains poorly understood. A correlation between atomic properties that can explain some of the previously identified glass forming ability (GFA) anomalies of the NiAl and CuZr systems has been identified, with these findings likely extensible to other transition metal–transition metal and transition metal–metalloid (TM–M) alloy classes as a whole. In this work, molecular dynamics simulation methods are utilized to study thermodynamic, kinetic, and structural properties of equiatomic CuZr and NiAl metallic glasses in an attempt to further understand the underlying connections between glass forming ability, nature of atomic level bonding, short and medium range ordering, and the evolution of structure and relaxation properties in the disordered phase. The anomalous breakdown of the fragility parameter as a useful GFA indicator in TM–M alloy systems is addressed through an in-depth investigation of bulk stiffness properties and the evolution of (pseudo)Gruneisen parameters over the quench domain, with the efficacy of other common glass forming ability indicators similarly being analyzed through direct computation in respective CuZr and NiAl systems. Comparison of fractional liquid-crystal density differences in the two systems revealed 2-3 times higher values for the NiAl system, providing further support for its efficacy as a general purpose GFA indicator.
Directional emissivity from two-dimensional infrared waveguide arrays
Authors: Burckel D. Bruce , Davids Paul S. , Finnegan Patrick S. , Figueiredo Pedro N. , Ginn James C.
Published: September 2015

Fabrication and optical characterization of surfaces covered with open-ended metallic waveguides are presented along with numerical modeling of these structures. Both modeling and measurement of the structures indicate that the 2-D array of 3D metallic waveguides modify both the direction and spectral content of the emissivity, resulting in directionality normal to the surface due to the optical axis of the waveguides and spectrally narrow emissivity due to the lateral dimensions of the waveguides. Furthermore, the optical behavior of these structures is placed in the broader context of other structured emission/absorption surfaces such as organ pipe modes, surface plasmon modes, and coherent thermal emission from gratings.
Layer-by-layer and intrinsic analysis of molecular and thermodynamic properties across soft interfaces
Authors: Sega Marcello , Fábián Balázs , Jedlovszky Pál
Published: September 2015

Interfaces are ubiquitous objects, whose thermodynamic behavior we only recently started to understand at the microscopic detail. Here, we borrow concepts from the techniques of surface identification and intrinsic analysis, to provide a complementary point of view on the density, stress, energy, and free energy distribution across liquid (“soft”) interfaces by analyzing the respective contributions coming from successive layers.
Enhancement of stability of aqueous suspension of alumina nanoparticles by femtosecond laser irradiation
Authors: Seo Youngsang , Choi Tae-Youl , Ha Jeonghong , Jeong Dae-Yong , Lee Seung Yong , Kim Dongsik
Published: September 2015

In this work, we report substantially enhanced colloidal stability of aqueous nanoparticle suspensions by ultrashort laser pulse irradiation. A Ti:Sapphire femtosecond laser (wavelength: 800 nm; pulse duration: 50 fs at full width at half maximum) was used to modify the electrochemical properties of nanoparticle suspensions at laser fluences below the particle ablation threshold. The colloidal stability of the suspension was evaluated by zeta potential and dynamic light scattering (DLS). The DLS results along with the images from transmission electron microscopy revealed that the laser irradiation caused no distinct morphological change to the individual alumina particles, but a substantial portion of the clustered particles was fragmented by the laser pulses, decreasing the apparent size of the suspended particles. Also, X-ray photoelectron spectroscopy analysis indicates that the laser irradiation modified the surface chemistry of the alumina particles. The stabilizing capability of the proposed technique was turned out to be better than that of conventional ultrasonic treatments. The stability of the laser-treated sample with no added surfactant was maintained for up to 30 days, without requiring an additional homogenizing process such as magnetic stirring.
Hybrid photovoltaic-thermoelectric system for concentrated solar energy conversion: Experimental realization and modeling
Authors: Beeri Ofer , Rotem Oded , Hazan Eden , Katz Eugene A. , Braun Avi , Gelbstein Yaniv
Published: September 2015

An experimental demonstration of the combined photovoltaic (PV) and thermoelectric conversion of concentrated sunlight (with concentration factor, X, up to ∼300) into electricity is presented. The hybrid system is based on a multi-junction PV cell and a thermoelectric generator (TEG). The latter increases the electric power of the system and dissipates some of the excessive heat. For X ≤ 200, the system's maximal efficiency, ∼32%, was mostly due to the contribution from the PV cell. With increasing X and system temperature, the PV cell's efficiency decreased while that of the TEG increased. Accordingly, the direct electrical contribution of the TEG started to dominate in the total system power, reaching ∼20% at X ≈ 290. Using a simple steady state finite element modeling, the cooling effect of the TEG on the hybrid system's efficiency was proved to be even more significant than its direct electrical contribution for high solar concentrations. As a result, the total efficiency contribution of the TEG reached ∼40% at X ≈ 200. This suggests a new system optimization concept that takes into account the PV cell's temperature dependence and the trade-off between the direct electrical generation and cooling capabilities of the TEG. It is shown that the hybrid system has a real potential to exceed 50% total efficiency by using more advanced PV cells and TE materials.
Electron mobility enhancement in (100) oxygen-inserted silicon channel
Authors: Xu Nuo , Takeuchi Hideki , Hytha Marek , Cody Nyles W. , Stephenson Robert J. , Kwak Byungil , Cha Seon Yong , Mears Robert J. , King Liu Tsu-Jae
Published: September 2015

High performance improvement (+88% in peak Gm and >30% in linear and saturation region drain currents) was observed for N-MOSFETs with Oxygen-Inserted (OI) Si channel. From TCAD analysis of the C-V measurement data, the improvement was confirmed to be due to electron mobility enhancement of the OI Si channel (+75% at Ninv = 4.0 × 1012 cm−2 and +25% at Ninv = 8.0 × 1012 cm−2). Raman and high-resolution Rutherford backscattering measurements confirmed that negligible strain is induced in the OI Si layer, and hence, it cannot be used to explain the origin of mobility improvement. Poisson-Schrödinger based quantum mechanical simulation was performed, taking into account phonon, surface roughness and Coulomb scatterings. The OI layer was modeled as a “quasi barrier” region with reference to the Si conduction band edge to confine inversion electrons. Simulation explains the measured electron mobility enhancement as the confinement effect of inversion electrons while the formation of an super-steep retrograde well doping profile in the channel (as a result of dopant diffusion blocking effect accompanied by introduction of the OI layer) also contributes 50%–60% of the mobility improvement.
AlGaN/GaN diaphragm-based pressure sensor with direct high performance piezoelectric transduction mechanism
Authors: Dzuba J. , Vanko G. , Držík M. , Rýger I. , Kutiš V. , Zehetner J. , Lalinský T.
Published: September 2015

The piezoelectric response of AlGaN/GaN circular HEMT pressure sensing device integrated on AlGaN/GaN diaphragm was experimentally investigated and supported by the finite element method modeling. The 4.2 μm thick diaphragm with 1500 μm diameter was loaded by the dynamic peak-to-peak pressure up to 36 kPa at various frequencies. The piezoelectric charge induced on two Schottky gate electrodes of different areas was measured. The frequency independent maximal sensitivity 4.4 pC/kPa of the piezoelectric pressure sensor proposed in a concept of micro-electro-mechanical system was obtained on the gate electrode with larger area. The measurement revealed a linear high performance piezoelectric response in the examined dynamic pressure range.
MoS2 oxygen sensor with gate voltage stress induced performance enhancement
Authors: Tong Yu , Lin Zhenhua , Thong John T. L. , Chan Daniel S. H. , Zhu Chunxiang
Published: September 2015

Two-dimensional (2D) materials have recently attracted wide attention and rapidly established themselves in various applications. In particular, 2D materials are regarded as promising building blocks for gas sensors due to their high surface-to-volume ratio, ease in miniaturization, and flexibility in enabling wearable electronics. Compared with other 2D materials, MoS2 is particularly intriguing because it has been widely researched and exhibits semiconducting behavior. Here, we have fabricated MoS2 resistor based O2 sensors with a back gate configuration on a 285 nm SiO2/Si substrate. The effects of applying back gate voltage stress on O2 sensing performance have been systematically investigated. With a positive gate voltage stress, the sensor response improves and the response is improved to 29.2% at O2 partial pressure of 9.9 × 10−5 millibars with a +40 V back-gate bias compared to 21.2% at O2 partial pressure of 1.4 × 10−4 millibars without back-gate bias; while under a negative gate voltage stress of −40 V, a fast and full recovery can be achieved at room temperature. In addition, a method in determining O2 partial pressure with a detectability as low as 6.7 × 10−7 millibars at a constant vacuum pressure is presented and its potential as a vacuum gauge is briefly discussed.
Factors affecting the views and experiences of women living in the city centre of Manisa, Turkey, regarding domestic violence
Authors: Özpinar Saliha , Dinç Horasan Gönül , Baydur Hakan , Canbay Tülin
Published: September 2015

Domestic violence against women is an important social and public health problem worldwide resulting from unequal power relationships between men and women. The purpose of the present cross-sectional descriptive study was to determine the factors affecting the views and experiences of women living in the city centre of Manisa, Turkey, regarding domestic violence. The data were collected from a representative sample of women (n=873) in 2012. The socio-demographic questionnaire and the World Health Organization’s Multi-country Study on Women’s Health and Domestic Violence Against Women were used for data collection. The study results revealed that of the women, 14.8% were exposed to physical violence, 7.9% to sexual violence, 20.2% to emotional violence/abuse and 11.2% to economic violence/abuse within the last 12 months. Lower income level, lower social status, lower educational level, unemployment, being exposed to parental violence during childhood and being married to husbands exposed to parental violence during childhood were associated risk factors with domestic violence. The study results indicate that domestic violence against women is a common phenomenon in Manisa.
The motivation for contrastive feature hierarchies in phonology
Authors: Dresher B. Elan
Published: September 2015

The notion that phonological features are organized into contrastive hierarchies has been entertained at different times in the history of linguistics. My main focus will be on the motivation for such hierarchies: what principles govern the ordering of the features? I will show that they have been motivated by three different principles: a) Activity: to identify the contrastive features that are relevant to the phonological computation, b) Minimality: to minimize redundancy in phonological representations and to maximize the amount of information conveyed by each feature, and c) Universality: to express universal tendencies in the nature of phonological inventories and the order of acquisition of feature contrasts. These principles do not necessarily conflict in every case, but in practice situations arise where they lead in different directions. To some extent Jakobson and Halle (Jakobson & Halle 1956; Halle 1959) and Clements (2001; 2003; 2009) appeal to all these principles, though they do so with differing emphases: Jakobson began by appealing to Activity, Halle came to stress Minimality, and Clements focused on Universality. I will argue on behalf of the centrality of Activity, which I understand to be the original and most compelling motivation for feature hierarchies.
Triumphs and limits of the Contrastivity-Only Hypothesis
Authors: Nevins Andrew
Published: September 2015

The Variable Hierarchy hypothesis of Dresher (2009) has a number of far-reaching consequences and applications – beyond the domain for which it was originally developed – including overspecification, kinship terminology, vowel reduction and whistled languages. On the other hand, the Contrastivity-Only Hypothesis of Dresher (2009) is, in its present form, empirically too limited once one looks at a full system of phonological processes within a language, and some reference to noncontrastive features seems inevitable. However, I outline a possible set of diagnostics and distinctions that might allow one to localize and limit the reference to noncontrastive features.
Field Evaluation of Plant Defense Inducers for the Control of Citrus Huanglongbing
Authors: Li Jinyun , Trivedi Pankaj , Wang Nian
Published: September 2015

Huanglongbing (HLB) is currently the most economically devastating disease of citrus worldwide and no established cure is available. Defense inducing compounds are able to induce plant resistance effective against various pathogens. In this study the effects of various chemical inducers on HLB diseased citrus were evaluated in four groves (three with sweet orange and one with mandarin) in Florida (United States) for two to four consecutive growing seasons. Results have demonstrated that plant defense inducers including β-aminobutyric acid (BABA), 2,1,3-benzothiadiazole (BTH), and 2,6-dichloroisonicotinic acid (INA), individually or in combination, were effective in suppressing progress of HLB disease. Ascorbic acid (AA) and the nonmetabolizable glucose analog 2-deoxy-D-glucose (2-DDG) also exhibited positive control effects on HLB. After three or four applications for each season, the treatments AA (60 to 600 µM), BABA (0.2 to 1.0 mM), BTH (1.0 mM), INA (0.1 mM), 2-DDG (100 µM), BABA (1.0 mM) plus BTH (1.0 mM), BTH (1.0 mM) plus AA (600 µM), and BTH (1.0 mM) plus 2-DDG (100 µM) slowed down the population growth in planta of ‘Candidatus Liberibacter asiaticus’, the putative pathogen of HLB and reduced HLB disease severity by approximately 15 to 30% compared with the nontreated control, depending on the age and initial HLB severity of infected trees. These treatments also conferred positive effect on fruit yield and quality. Altogether, these findings indicate that plant defense inducers may be a useful strategy for the management of citrus HLB.
A Novel Ilarvirus Is Associated with Privet Necrotic Ringspot Disease in the Southern United States
Authors: Aboughanem-Sabanadzovic Nina , Tzanetakis Ioannis E. , Lawrence Amanda , Stephenson Ronald C. , Sabanadzovic Sead
Published: September 2015

Necrotic ringspot disease (NRSD) is a graft-transmissible disorder of privet (synonym ligustrum), originally reported from Florida and Louisiana more than 50 years ago. In this communication we report an isometric virus isolated from Japanese privet (Ligustrum japonicum) collected in the southern United States displaying symptoms resembling those of NRSD. In mechanical transmission tests, the virus induced systemic infections in several herbaceous hosts. Double-stranded RNA analysis showed a pattern resembling replicative forms of members of the family Bromoviridae. The genome organization along with phylogenetic analyses and serological tests revealed that the virus belongs to subgroup 1 of the genus Ilarvirus. Pairwise comparisons with recognized ilarviruses indicated that the virus is a distinct, and as yet, undescribed member in the taxon, for which we propose the name Privet ringspot virus (PrRSV). Furthermore, the near-perfect association of PrRSV infections with symptoms, and apparent absence of any other virus(es) in studied samples, strongly suggest an important role of this virus in the etiology of NRSD of privet in the southeastern United States.
Incommensurate modulation and thermal expansion of Sr3B2 + xSi1 − xO8 − x/2solid solutions
Authors: Volkov Sergey , Bubnova Rimma , Bolotina Nadezhda , Krzhizhanovskaya Maria , Belousova Olga , Filatov Stanislav
Published: September 2015

Crystal structures of Sr3B2 + xSi1 − xO8 − x/2solid solutions with nominal compositionsx= 0.28, 0.53, 0.78 in the Sr3B2SiO8–Sr2B2O5section of the SrO–B2O3–SiO2system are refined using single-crystal X-ray diffraction data. Incommensurate structure modulations are mainly associated with various orientations of corner-sharing (B,Si)-polyhedra. Preference is given to the (3 + 2)-dimensional symmetry groupPnma(0βγ)000(0{\rm{\bar \beta }}γ)000 for a single crystal compared with an alternate model of a twin formed by monoclinic components, each of them corresponding to the (3 + 1)-dimensional symmetry groupP21/n(0βγ). Single-phase polycrystalline samples of solid solutions are investigated by high-temperature X-ray powder diffraction in air. Orientation preferences of the BO3units lead to a strong anisotropy of thermal expansion. Negative expansion is observed along theaaxis over the temperature range 303–753 K. Anisotropy decreases both on heating and decreasing of the boron content.
Classification ofABO3perovskite solids: a machine learning study
Authors: Pilania G. , Balachandran P. V. , Gubernatis J. E. , Lookman T.
Published: September 2015

We explored the use of machine learning methods for classifying whether a particularABO3chemistry forms a perovskite or non-perovskite structured solid. Starting with three sets of feature pairs (the tolerance and octahedral factors, theAandBionic radii relative to the radius of O, and the bond valence distances between theAandBions from the O atoms), we used machine learning to create a hyper-dimensional partial dependency structure plot using all three feature pairs or any two of them. Doing so increased the accuracy of our predictions by 2–3 percentage points over using any one pair. We also included the Mendeleev numbers of theAandBatoms to this set of feature pairs. Doing this and using the capabilities of our machine learning algorithm, the gradient tree boosting classifier, enabled us to generate a new type of structure plot that has the simplicity of one based on using just the Mendeleev numbers, but with the added advantages of having a higher accuracy and providing a measure of likelihood of the predicted structure.
Effects of learning orientation and team embeddedness on mobility
Authors: Chang Jung-Nung , Cheng Chia-Yi
Published: September 2015

Purpose

– The purpose of this paper is to explore the effects of learning orientation (LO) and team embeddedness (TE) on the turnover intention of team members within the context of both culturally diverse and uniform teams.

Design/methodology/approach

– A structural model was adopted to test the hypotheses with the help of data collected from a survey of 324 foreign and local students of an international university located in Taiwan. To compare the effects of TE and LO in the context of culturally diverse teams (CDT), a multi-group structural equation modeling was employed to investigate individual team behavior.

Findings

– The LO of team members in a culturally diverse context will positively influence their intention to leave the team. However, such an intention can be reduced by strengthening members’ TE along with the LO. Nonetheless, the direct effect of LO on team turnover intention in the context of same-culture teams was found to be insignificant, leaving TE as the only critical mediator in this case. Furthermore, capability validation, sought by performance-orientated individuals, was found to be an important factor worthy of special consideration for those in a single-culture team context.

Originality/value

– This study provides evidence regarding the applicability of the concept of job embeddedness to team relationships and the link between goal orientation and team mobility in a multi-cultural setting. Such an approach is helpful for determining ways to strengthen and stabilize team resources in the context of CDT.
Toward Experimental International Business
Authors: van Witteloostuijn Arjen
Published: September 2015

Purpose

– The purpose of this paper is to argue that the time is ripe to establish a powerful tradition in Experimental International Business (IB). Probably due to what the Arjen van Witteloostuijn refers to as the external validity myth, experimental laboratory designs are underutilized in IB, which implies that the internal validity miracle of randomized experimentation goes largely unnoticed in this domain of the broader management discipline.

Design/methodology/approach

– In the following pages, the author explains why the author believes this implies a missed opportunity, providing arguments and examples along the way.

Findings

– Although an Experimental Management tradition has never really gained momentum, to the author, the lab experimental design has a very bright future in IB (and management at large). To facilitate the development of an Experimental IB tradition, initiating web-based tools would be highly instrumental. This will not only boost further progress in IB research, but will also increase the effectiveness and playfulness of IB teaching.

Originality/value

– Given the high potential of an Experimental IB, theCross-Cultural and Strategic Managementjournal will offer a platform for such exciting and intriguing laboratory work, cumulatively contributing to the establishment of an Experimental IB tradition.