bluuebunny/crossref_metadata_2025 huggingface dataset:
Direct observation of structural properties and fluorescent trapping sites in macrocyclic porphyrin arrays at the single-molecule level
Authors: Ham Sujin , Lee Ji-Eun , Song Suhwan , Peng Xiaobin , Hori Takaaki , Aratani Naoki , Osuka Atsuhiro , Sim Eunji , Kim Dongho
Published: January 2016

By utilizing single-molecule defocused wide-field fluorescence microscopy, we have investigated the molecular structural properties and ascertained site selection for fluorescent trapping sites in multichromophoric systems.
Computer modelling of the surface tension of the gas–liquid and liquid–liquid interface
Authors: Ghoufi Aziz , Malfreyt Patrice , Tildesley Dominic J.
Published: January 2016

This review presents the state of the art in molecular simulations of interfacial systems and of the calculation of the surface tension from the underlying intermolecular potential.
A multicomponent molecular approach to artificial photosynthesis – the role of fullerenes and endohedral metallofullerenes
Authors: Rudolf M. , Kirner S. V. , Guldi D. M.
Published: January 2016

In this review article, we highlight recent advances in the field of solar energy conversion at a molecular level.
Identifying the descriptor governing NO oxidation on mullite Sm(Y, Tb, Gd, Lu)Mn2O5for diesel exhaust cleaning
Authors: Li Hao-Bo , Wang Wei-Hua , Qian Xinyu , Cheng Yahui , Xie Xinjian , Liu Jieyu , Sun Shuhui , Zhou Jigang , Hu Yongfeng , Xu Jianping , Li Lan , Zhang Yan , Du Xiwen , Gao Kuanghong , Li Zhiqing , Zhang Cui , Wang Shudong , Chen Haijun , Zhao Yidong , Lu Feng , Wang Weichao , Liu Hui
Published: January 2016

Mn-based oxides Sm(Y, Tb, Gd, Lu)Mn2O5are synthesized to identify a general descriptor that governs the catalytic performance in NO oxidation.
Novel core–shell structure microspheres based on lanthanide complexes for white-light emission and fluorescence sensing
Authors: Lian Xiao , Yan Bing
Published: January 2016

A series of core–shell structure materials based on Ln-dpa complex and silica are prepared and the complex coating are generated on the surface of silica pheres successfully. The SiO2@Ln-dpa exhibits excellent luminescence properties. Furthermore, SiO2@Eu-dpa possesses highly selective and sensitive for acetone and Cu2+.
Architectures and DFT calculations of polyrotaxane MOFs with nanoscale macrocycles
Authors: Zhang Ming-Dao , Zheng Bao-Hui , Chen Liang , Chen Min-Dong , Tao Tao , Chen Kai , Cao Hui
Published: January 2016

This paper reports two polyrotaxane metal–organic frameworks and theoretical investigations of their inclined/parallel interlocking modes.
Azide-bridged Cu(ii), Mn(ii) and Co(ii) coordination polymers constructed with a bifunctional ligand of 6-(1H-tetrazol-5-yl)-2,2′-bipyridine
Authors: Tsao Jung-Yu , Tsai Jia-Dong , Yang Chen-I.
Published: January 2016

Three new azide-bridged coordination polymers, [M(N3)(tzbp)]n (M = Cu, 1·Cu; Mn, 2·Mn; Co, 3·Co), were successfully prepared by introducing a bifunctional tetrazolate/2,2′-bipyridine ligand, 6-(1H-tetrazol-5-yl)-2,2′-bipyridine (Htzbp).
Reactivity, characterization of reaction products and immobilization of lead in water and sediments using quercetin pentaphosphate
Authors: Okello Veronica A. , Osonga Francis J. , Knipfing Michael T. , Bushlyar Victor , Sadik Omowunmi A.
Published: January 2016

Quantitative removal and in situ detection of lead from water using naturally derived quercetin pentaphosphate.
Critical review: impacts of macromolecular coatings on critical physicochemical processes controlling environmental fate of nanomaterials
Authors: Louie Stacey M. , Tilton Robert D. , Lowry Gregory V.
Published: January 2016

Challenges in predicting effects of macromolecules on nanoparticle behavior.
Solid oxide membrane-assisted controllable electrolytic fabrication of metal carbides in molten salt
Authors: Zou Xingli , Zheng Kai , Lu Xionggang , Xu Qian , Zhou Zhongfu
Published: January 2016

Silicon carbide (SiC), titanium carbide (TiC), zirconium carbide (ZrC), and tantalum carbide (TaC) have been electrochemically produced directly from their corresponding stoichiometric metal oxides/carbon (MOx/C) precursors by electrodeoxidation in molten calcium chloride (CaCl2). An assembled yttria stabilized zirconia solid oxide membrane (SOM)-based anode was employed to control the electrodeoxidation process. The SOM-assisted controllable electrochemical process was carried out in molten CaCl2 at 1000 °C with a potential of 3.5 to 4.0 V. The reaction mechanism of the electrochemical production process and the characteristics of these produced metal carbides (MCs) were systematically investigated. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy analyses clearly identify that SiC, TiC, ZrC, and TaC carbides can be facilely fabricated. SiC carbide can be controlled to form a homogeneous nanowire structure, while the morphologies of TiC, ZrC, and TaC carbides exhibit porous nodular structures with micro/nanoscale particles. The complex chemical/electrochemical reaction processes including the compounding, electrodeoxidation, dissolution–electrodeposition, and in situ carbonization processes in molten CaCl2 are also discussed. The present results preliminarily demonstrate that the molten salt-based SOM-assisted electrodeoxidation process has the potential to be used for the facile and controllable electrodeoxidation of MOx/C precursors to micro/nanostructured MCs, which can potentially be used for various applications.
3rd International Symposium on Green Chemistry
Authors: Jérôme François
Published: January 2016

Editorial to accompany the ISGC-2015 Green Chemistry web collection.
Development of novel bis-naphthalimide derivatives and their anticancer properties
Authors: Rong Rui-Xue , Sun Qian , Ma Cui-Lan , Chen Bin , Wang Wen-Ying , Wang Zhong-Ao , Wang Ke-Rang , Cao Zhi-Ran , Li Xiao-Liu
Published: January 2016

Novel bis-naphthalimide derivatives NI1–6 were synthesized, which exhibited selective cytotoxic activity, especially for NI1. Furthermore, NI1 as a DNA intercalator exhibited fluorescence enhancement upon binding with Ct-DNA, fluorescence imaging with Hela cells and different impacts on the cell cycle compared with amonafide.
Structural and spectroscopic characterisation of the spin crossover in [Fe(abpt)2(NCS)2] polymorph A
Authors: Mason Helen E. , Li Wei , Carpenter Michael A. , Hamilton Michelle L. , Howard Judith A. K. , Sparkes Hazel A.
Published: January 2016

Crystallographic, UV-Vis, RUS and strain analysis studies of thermal spin crossover in [Fe(abpt)2(NCS)2] polymorph A are presented alongside LIESST and high pressure structures.
Optimization of the nanotwin-induced zigzag surface of copper by electromigration
Authors: Chen Hsin-Ping , Huang Chun-Wei , Wang Chun-Wen , Wu Wen-Wei , Liao Chien-Neng , Chen Lih-Juann , Tu King-Ning
Published: January 2016

By adding nanotwins to Cu, the surface electromigration (EM) slows down.
Blockage of ultrafast and directional diffusion of Li atoms on phosphorene with intrinsic defects
Authors: Zhang Ruiqi , Wu Xiaojun , Yang Jinlong
Published: January 2016

A first-principles study revealed the blockage of ultrafast and directional diffusion of Li atoms on phosphorene with defects.
Synthesis and catalytic properties of highly branched palladium nanostructures using seeded growth
Authors: Graham L. , Collins G. , Holmes J. D. , Tilley R. D.
Published: January 2016

Branched palladium nanomaterials synthesised using a seeded growth approach for enhanced Suzuki-cross coupling reactions.
Improved performance of SrFe12O19bulk magnets through bottom-up nanostructuring
Authors: Saura-Múzquiz Matilde , Granados-Miralles Cecilia , Stingaciu Marian , Bøjesen Espen Drath , Li Qiang , Song Jie , Dong Mingdong , Eikeland Espen , Christensen Mogens
Published: January 2016

High-performance hexaferrite magnets of aligned single-domain nanoplatelets are obtained by supercritical synthesis and compaction through Spark Plasma Sintering.
Extremely low frequency alternating magnetic field–triggered and MRI–traced drug delivery by optimized magnetic zeolitic imidazolate framework-90 nanoparticles
Authors: Fang Jie , Yang Yong , Xiao Wen , Zheng Bingwen , Lv Yun-Bo , Liu Xiao-Li , Ding Jun
Published: January 2016

An extremely low frequency alternating magnetic field of 20 Hz was proved to be able to remarkably accelerate the drug release from optimized ZIF-90 nanospheres with incorporated Fe3O4 nanoparticles acting as actuator.
A versatile method for producing functionalized cellulose nanofibers and their application
Authors: Huang Pei , Zhao Yang , Kuga Shigenori , Wu Min , Huang Yong
Published: January 2016

Individual dispersed cellulose nanofibers can be produced through ball milling by adding anhydride and DMAP in one step. By altering the type of anhydride, the cellulose nanofiber presents different surface properties and tailored compatibility with varied solvents or matrices, which greatly promote the massive applications of cellulose nanofibers.
Iodine mediated intramolecular C2-amidative cyclization of indoles: a facile access to indole fused tetracycles
Authors: Badigenchala Sindhura , Rajeshkumar Venkatachalam , Sekar Govindasamy
Published: January 2016

A novel and metal-free I2-mediated intramolecular C2 amidation of indoles under mild reaction conditions is developed for synthesis of indole fused tetracycles.
Stereoselective synthesis of oxazolidinonyl-fused piperidines of interest as selective muscarinic (M1) receptor agonists: a novel M1 allosteric modulator
Authors: Broadley Kenneth J. , Buffat Maxime G. P. , Burnell Erica , Davies Robin H. , Moreau Xavier , Snee Stephen , Thomas Eric J.
Published: January 2016

Syntheses of (1RS,2SR,6SR)-2-alkoxymethyl-, 2-hetaryl-, and 2-(hetarylmethyl)-7-arylmethyl-4,7-diaza-9-oxabicyclo[4.3.0]nonan-8-ones, of interest as potential muscarinic M1 receptor agonists, are described.
Nanoemulsion as a topical delivery system of antipsoriatic drugs
Authors: Salim Norazlinaliza , Ahmad Noraini , Musa Siti Hajar , Hashim Rauzah , Tadros Tharwat F. , Basri Mahiran
Published: January 2016

Nanoemulsion as a potential enhancer for the treatment of psoriasis.
A biomimetic Setaria viridis-inspired imprinted nanoadsorbent: green synthesis and application to the highly selective and fast removal of sulfamethazine
Authors: Ma Ping , Zhou Zhiping , Dai Jiangdong , Qin Ling , Ye Xubo , Chen Xiang , He Jinsong , Xie Atian , Yan Yongsheng , Li Chunxiang
Published: January 2016

The preparation of biomimetic Setaria viridis-inspired hydrophilic magnetic imprinted nanoadsorbent, via a two-step surface-initiated ATRP in a green alcohol/water solvent at RT, with MHNTs used as nano-cores, was first reported.
Poly(methyl methacrylate) end-functionalized with hexabenzocoronene as an effective dispersant for multi-walled carbon nanotubes
Authors: Jeong Seung Pyo , Boyle Connor J. , Venkataraman D.
Published: January 2016

We demonstrate that single MWCNTs can be dispersed in organic solvents using a poly(methyl methacrylate) (PMMA) end-functionalized with hexabenzocoronene.
Enhanced hydrophilic and antifouling polyacrylonitrile membrane with polydopamine modified silica nanoparticles
Authors: Tripathi Bijay P. , Dubey Nidhi C. , Subair Riyas , Choudhury Soumydip , Stamm Manfred
Published: January 2016

Hydrophilic and antifouling polydopamine modified silica nanoparticles-polyacrylonitrile membranes were fabricated for water purification applications. High dispersion and better compatibility of modified nanoparticles with polyacrylonitrile was observed.
Formulation of pea protein for increased satiety and improved foaming properties
Authors: Saldanha do Carmo C. , Nunes A. N. , Silva I. , Maia C. , Poejo J. , Ferreira-Dias S. , Nogueira I. , Bronze R. , Duarte C. M. M.
Published: January 2016

Pea protein was successfully encapsulated into a lipophilic carrier through PGSS®. HPT-scCO2of pea protein has enabled higher foam stability.
A metal-free tandem ring-opening/ring-closing strategy for the heterocyclic conversion of benzoxazin-4-ones to oxazolines
Authors: Rajesh Nomula , Manisha Banala , Ranjith Jala , Krishna Palakodety Radha
Published: January 2016

A facile metal-free tandem ring-opening/ring-closing strategy was developed for the synthesis of oxazolines in good to excellent reaction yields under mild reaction conditions.
Energetic hybrid polymer network (EHPN) through facile sequential polyurethane curation based on the reactivity differences between glycidyl azide polymer and hydroxyl terminated polybutadiene
Authors: Tanver Abbas , Rehman Fida , Wazir Aisha , Khalid Syed , Ma Song , Li Xiaoyu , Luo Yunjun , Huang Mu-Hua
Published: January 2016

To improve the thermo-mechanical properties of glycidyl azide polymer and hydroxyl terminated polybutadiene based propellants, a facile sequential polymerization approach was used to prepare an energetic hybrid polymer network by stepwise curation.
Synthesis of cross-linked copolymers of the (3-(2-pyridyl) acrylic acid)–copper(ii) complex in supercritical carbon dioxide for the catalytic oxidation of benzyl alcohol
Authors: Chi Hui , Cao Liqin , Wang Jide
Published: January 2016

The copper(ii) complexes of poly[(3-(2-pyridyl) acrylic acid)-co-acrylic acid] {P(Pya-co-AA)} were prepared via precipitation polymerization in supercritical carbon dioxide.
Design and fabrication of a graphene/carbon nanotubes/activated carbon hybrid and its application for capacitive deionization
Authors: Zhu Guang , Wang Wenqi , Li Xuelian , Zhu Jun , Wang Hongyan , Zhang Li
Published: January 2016

Novel three-component graphene/carbon nanotubes/activated carbon (GTAC) hybrids were prepared and investigated as capacitive deionization electrode, and as-prepared GTAC-20 hybrid exhibits a high elcetrosorption capacity of 2.30 mg g−1 and good repeatability.
A graphene quantum dot (GQD) nanosystem with redox-triggered cleavable PEG shell facilitating selective activation of the photosensitiser for photodynamic therapy
Authors: Li Yan , Wu Zhiyong , Du Dou , Dong Haiqing , Shi Donglu , Li Yongyong
Published: January 2016

A graphene quantum dot nanosystem with redox-triggered cleavable PEG shell was developed to achieve selective activation of the photosensitiser in tumor-relevant conditions.
The preparation, characterization and application of COOH grafting on ferrite–silica nanoparticles
Authors: Hassani H. , Zakerinasab B. , Nasseri M. A. , Shavakandi M.
Published: January 2016

Magnetic materials grafted with carboxylic acid (Fe3O4@SiO2@COOH MNPs) were successfully prepared via the incorporation of maleic anhydride as a functional group on the surface of ferrite–silica nanoparticles.
Hydrothermal generation of compressed hydrogen gas by iron powders
Authors: Tsai Yu-Ching , Liu Liang-Hsing , Chen Dong-Hwang
Published: January 2016

High purity compressed hydrogen gas has been efficiently generated via a facile hydrothermal process of iron powders and water.
Synthesis and rheological behavior of poly(1,2-butylene oxide) based supramolecular architectures
Authors: Allgaier Jürgen , Hövelmann Claas H. , Wei Zhang , Staropoli Mariapaola , Pyckhout-Hintzen Wim , Lühmann Nicole , Willbold Sabine
Published: January 2016

We describe the synthesis, analysis and rheological behavior of differently functionalized poly(1,2-butylene oxide) based supramolecular polymers.
Protein adsorption by a high-capacity cation-exchange membrane prepared via surface-initiated atom transfer radical polymerization
Authors: He Maofang , Wang Chaozhan , Wei Yinmao
Published: January 2016

A weak cation-exchange membrane was prepared via surface-initiated atom transfer radical polymerization of glycidyl methacrylate and subsequent two-step derivation, and then two new parameters were used to explain the protein adsorption behavior.
Pressure induced semiconductor–metal phase transition in GaAs: experimental and theoretical approaches
Authors: Wang Jia , Wu Baojia , Zhang Guozhao , Tian Lianhua , Gu Guangrui , Gao Chunxiao
Published: January 2016

GaAs undergoes a semiconductor–metal transition, which was investigated by in situ electrical measurements and first-principles calculations under a high pressure.
Mechanistic study of selective catalytic reduction of NO with NH3 over highly dispersed Fe2O3 loaded on Fe-ZSM-5
Authors: Li Bo , Huang Zhennan , Huang Xiaodong , Kou Shengzhong , Liu Fu , Zhang Xiaobin , Yang Hangsheng
Published: January 2016

Highly dispersed FexOy clusters loaded on Fe-ZSM-5 with a Fe3+ concentration up to 22 wt% promoted the de-NOX activity with an efficiency of 91%. The reaction route was temperature dependent.
Soft-templated synthesis of Mn3O4 microdandelions for the degradation of alizarin red under visible light irradiation
Authors: Rahaman Hasimur , Ghosh Sujit Kumar
Published: January 2016

A soft-templated strategy has been developed for the synthesis of self-assembled Mn3O4 microdandelions that exhibit potential photocatalytic activity towards the degradation of alizarin red under visible light irradiation.
3-Dimensional porous nanocomposite scaffolds based on cellulose nanofibers for cartilage tissue engineering: tailoring of porosity and mechanical performance
Authors: Naseri Narges , Poirier Jean-Michel , Girandon Lenart , Fröhlich Mirjam , Oksman Kristiina , Mathew Aji P.
Published: January 2016

Fully bio-based 3D porous scaffold based on cellulose nanofibers with potential use in cartilage tissue engineering was developed.
A rationally designed metal-binding helical peptoid for selective recognition processes
Authors: Baskin Maria , Maayan Galia
Published: January 2016

A helical peptoid bearing two distinct metal binding ligands at positions i and i+3 (Helix HQT i+3) enables the selective recognition of one or two metal ions depending on its environment, thus mimicking the unique recognition abilities of natural biopolymers.
Catalysis of “outer-phase” oxygen atom exchange reactions by encapsulated “inner-phase” water in {V15Sb6}-type polyoxovanadates
Authors: Wendt Michael , Warzok Ulrike , Näther Christian , van Leusen Jan , Kögerler Paul , Schalley Christoph A. , Bensch Wolfgang
Published: January 2016

A water molecule encapsulated inside water-soluble {V15Sb6} antimonato polyoxovanadate cages accelerates oxygen-exchange reactions in the cluster periphery.
Streaming potential-modulated capillary filling dynamics of immiscible fluids
Authors: Bandopadhyay Aditya , Mandal Shubhadeep , Chakraborty Suman
Published: January 2016

A general framework for the electrokinetic transport of two immiscible fluids in narrow confinements with different conductivities is developed.
3D graphene/δ-MnO2 aerogels for highly efficient and reversible removal of heavy metal ions
Authors: Liu Juntao , Ge Xiao , Ye Xinxin , Wang Guozhong , Zhang Haimin , Zhou Hongjian , Zhang Yunxia , Zhao Huijun
Published: January 2016

3D graphene/δ-MnO2 aerogels demonstrated high removal efficiency, fast adsorption kinetics, excellent regeneration towards heavy metal ions based on the perfect integration of surface adsorption and in-depth bulk uptake.
Unprecedented performance of N-doped activated hydrothermal carbon towards C2H6/CH4, CO2/CH4, and CO2/H2 separation
Authors: Yuan Bin , Wang Jun , Chen Yingxi , Wu Xiaofei , Luo Hongmei , Deng Shuguang
Published: January 2016

Unprecedented performance of N-doped activated hydrothermal carbon towards C2H6/CH4, CO2/CH4, and CO2/H2 separation.
Oxidation–reduction assisted exfoliation of LiCoO2 into nanosheets and reassembly into functional Li-ion battery cathodes
Authors: Cheng Qian , Yang Ting , Li Ying , Li Man , Chan Candace K.
Published: January 2016

A new method to exfoliate LiCoO2 into nanosheets is presented and the structural and electrochemical properties of particles obtained from reassembled nanosheets are investigated.
Cost-effective fabrication of high-performance flexible all-solid-state carbon micro-supercapacitors by blue-violet laser direct writing and further surface treatment
Authors: Cai Jinguang , Lv Chao , Watanabe Akira
Published: January 2016

Cost-effective all-solid-state flexible high-performance carbon micro-supercapacitors were simply prepared by laser direct writing on polyimide sheets and further air-plasma treatment.
Ammonium tetrathiomolybdate as a novel electrode material for convenient tuning of the kinetics of electrochemical O2 reduction by using iron–porphyrin catalysts
Authors: Chatterjee Sudipta , Sengupta Kushal , Bandyopadhyay Sabyasachi , Dey Abhishek
Published: January 2016

Ammonium tetrathiomolybdate modified gold electrodes can easily tune the rate of electron transfer to the redox active species when the deposition time is varied.
Photosensitizer-loaded bubble-generating mineralized nanoparticles for ultrasound imaging and photodynamic therapy
Authors: Park Dong Jin , Min Kyung Hyun , Lee Hong Jae , Kim Kwangmeyung , Kwon Ick Chan , Jeong Seo Young , Lee Sang Cheon
Published: January 2016

Ce6-loaded mineralized nanoparticles expressed theranostic potentials by generating CO2 bubbles and releasing photosensitizers at tumoral pH for ultrasound imaging and simultaneous photodynamic therapy.
An organic–inorganic hybrid interlayer for improved electron extraction in inverted polymer solar cells
Authors: Lee Eui Jin , Heo Soo Won , Han Yong Woon , Moon Doo Kyung
Published: January 2016

The electron extraction of inverted polymer solar cells (PSCs) was enhanced by modifying surface energy of buffer layer. We introduced organic–inorganic hybrid ZnO–PFN interlayer as electron extraction layer.
Screening procedure for structurally and electronically matched contact layers for high-performance solar cells: hybrid perovskites
Authors: Butler Keith T. , Kumagai Yu , Oba Fumiyasu , Walsh Aron
Published: January 2016

A screening procedure for identifying eletronically and structurally matched interfaces based on bulk properties is developed and applied to perovskite solar cells.
Sorting nexin 27 interacts with Fzd7 and mediates Wnt signalling
Authors: Sun Lixiang , Hu Xiuyong , Chen Wanming , He Wei , Zhang Zhiming , Wang Tuanlao
Published: January 2016

SNX27 is the only sorting nexin (SNX) that contains a PDZ domain, which interacts with PDZ-binding motif of target proteins to regulate the trafficking of these proteins. We here showed that SNX27 interacts with Frizzled (Fzd) receptors via PDZ domain interaction. Immunofluorescence microscopy revealed that Fzd7 can be internalized and associate with SNX27-containing endosomal membrane. In addition, SNX27 enhances the endocytosis of Fzd7 and promotes the degradation of Fzd7. Further examination demonstrated that SNX27 inhibits the Wnt regulated transcription activity of TCF/LEF. Our results suggested that SNX27 interacts with Frizzled receptors to regulate the endocytosis and stability of Fzds, and consequently mediates canonical Wnt signalling.
Off‐grid DOA estimation of incoherently distributed non‐circular sources via generalised approximate message passing
Authors: Yang Xuemin , Zheng Zhi , Hu Bin
Published: January 2016

A new off‐grid direction‐of‐arrival (DOA) estimation method based on a parametric sparse representation model is addressed for incoherently distributed non‐circular sources. The parametric sparse representation model exploits the signal non‐circularity to double the number of measurements, and is parameterised by the angular spread and the quantisation error. On the basis of this model, an improved generalised approximate message passing technique is utilised to estimate the central DOA. Numerical simulations are provided to illustrate the excellent performance of the proposed method.
Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variation
Authors: Baba A.A. , Hashmi R.M. , Esselle K.P.
Published: January 2016

A simple method is proposed to significantly enhance the broadside directivity of a simple slot antenna over a wide bandwidth. This improvement is achieved by introducing a simple optimised dielectric superstructure with an axial variation of permittivity. In this antenna, both the superstructure and ground plane are cylindrical in shape with an area of 1.62λ02. The antenna has a measured peak directivity of 18.1 dBi and an extremely wide 3 dB directivity bandwidth of 51.1%. A WR‐75 waveguide is used to feed the slot antenna. The antenna is well matched over the entire directivity bandwidth, which extends from 8.75 to 14.75 GHz. The measured average aperture efficiency is ∼88% over the 3 dB directivity bandwidth.
Total harmonic distortion reduction add‐on unit for three‐phase diode rectifiers
Authors: Makoschitz M. , Hartmann M. , Ertl H.
Published: January 2016

An active add‐on option for 208 VLL/60 Hz passive three‐phase rectifiers is presented. The active optional circuit is implemented as ‘centre‐tapped’ full‐bridge stage and guarantees low‐harmonic input currents and unity power factor. The active unit is able to operate for a wide frequency range and therefore applicable for high‐ (e.g. >100 kW) and low‐power applications. Some basic considerations such as principle operation, duty cycles, voltage/current stress of switches and design of inductors are discussed and additionally supported by simulation results. Applicability of emerging wide bandgap power devices such as silicon carbide MOSFETs, which improve converter efficiency and power density, is furthermore briefly discussed.
Negative refractive index and negative refraction of waves in lossy metamaterials
Authors: Ji L. , Varadan V.V.
Published: January 2016

An experimental study of the conditions for negative energy refraction and negative phase refraction in lossy metamaterials is provided. In hypothetical non‐lossy metamaterials, the angles of phase and energy refraction are one and the same. Using measured S‐parameters of split ring resonator–wire metamaterial samples, it is shown that negative refractive index is not a requirement for negative energy refraction in lossy metamaterials. It was assumed that the sample is effectively homogeneous and isotropic in the direction of wave propagation. For transverse‐electric polarisation, negative energy refraction with a positive refractive index was demonstrated.
2‐bit polarisation agile antenna with high port decoupling
Authors: Wolosinski G. , Fusco V. , Malyuskin O.
Published: January 2016

A practical method to achieve both decoupling and six polarisation states by employing the mode‐based approach for a four‐element antenna is presented. The eigenmode theory as well as a practical implementation scheme are presented. The resulting approach can operate with vertical, horizontal, slant +45°, slant −45°, right‐hand circular polarisation, or left‐hand circular polarisation. A prototype has been manufactured and measured results show good agreement with simulations.
Memristive behaviour of high‐impedance faults
Authors: Tisserand E. , Berviller Y. , Humbert J.B.
Published: January 2016

In this reported work, the analogy between parallel electrical arcs and memristors is extended to high‐impedance faults such as carbonised paths and circuit openings. First, it is demonstrated that the conductance from the high‐impedance Mayr model behaves like a particular memductance sensitive to the integral of the squared current. Then, the current–voltage plot confirms the memristive behaviour of high‐impedance faults, both by simulation and with experimental results.
Unified modulation and demodulation design for satellite communication systems
Authors: Yuan Yabo , Wang Bo , Wu Bin
Published: January 2016

The booming of user groups challenges the flexibility of satellite communication systems. A unified modulation and demodulation design for satellite communication systems based on a mathematical mapping and basis expansion model is proposed. The phase shift keying, quadrature amplitude modulation and continuous phase modulation are implemented via the setting of two model structures, the mapping table which unifies mapping processes with and without memory, and the basis expansion coefficient matrix which consistently represents different waveforms. Simulations show that the communication performance of the system with unified design equals and even overmatches classical separated systems.
Feedback preparation of maximally entangled states of two‐qubit systems
Authors: Zhou Juan , Kuang Sen
Published: January 2016

Bell states play a central role in the field of quantum information. For two‐qubit systems, this study proposes a new non‐smooth control strategy within the theoretical framework of quantum continuous measurement, and achieves global feedback stabilisation in any target Bell state. For a target Bell state, the authors select one measured observable and two control channels, where the control law associated with one channel is kept constant. They design a non‐smooth control law for the other control channel, and prove the stability of the whole closed‐loop system. Some simulation experiments show that the control strategy in this paper has a good control effect.
Grey wolf optimisation for optimal sizing of battery energy storage device to minimise operation cost of microgrid
Authors: Sharma Sharmistha , Bhattacharjee Subhadeep , Bhattacharya Aniruddha
Published: January 2016

Nowadays, optimal operational planning of micro‐grid (MG) with regard to energy costs minimisation of MG and better utilisation of renewable energy sources (RES) such as solar and wind energy systems, has become the head of concern of modern power grids and energy management systems. Due to large integration of RES into the MG, the necessity of battery energy storage (BES) has increased rapidly. Size of BES plays an important role in the operation cost minimisation of MG. A cost‐based formulation has been performed in this study to determine the optimal size of BES in the operation cost minimisation problem of MG under various constraints, such as power capacity of distributed generators (DGs), power and energy capacity of BES, charge/discharge efficiency of BES, operating reserve and load demand satisfaction. A recently developed optimisation technique known as grey wolf optimisation (GWO) has been applied here to solve the problem. The proposed algorithm is tested on a typical MG. Simulation results establish that the proposed approach outperforms several existing optimisation techniques such as genetic algorithm, particle swarm optimisation, tabu search, differential evolution, biogeography‐based optimisation, teaching–learning‐based optimisation, bat algorithm (BA) and improved BA in terms of quality of solution obtained and computational efficiency.
Hairy and Groucho mediate the action of juvenile hormone receptor Methoprene-tolerant in gene repression
Authors: Saha Tusar T. , Shin Sang Woon , Dou Wei , Roy Sourav , Zhao Bo , Hou Yuan , Wang Xue-Li , Zou Zhen , Girke Thomas , Raikhel Alexander S.
Published: January 2016

Significance

Juvenile hormone is unique to arthropods and controls numerous essential functions in these organisms. Its receptor, Methoprene-tolerant, turns on genes by directly binding to E-box–like motifs in their regulatory regions. However, how juvenile hormone represses genes has remained unclear. Here, we used theAedes aegyptifemale mosquito, in which juvenile hormone is necessary for reproductive maturation, to show that the repressor Hairy is required for the gene-repressive action of juvenile hormone and Methoprene-tolerant. Moreover, we demonstrate that a corepressor, Groucho, supports this Hairy function. Hence, Methoprene-tolerant recruits the evolutionarily conserved Hairy/Groucho molecular system to mediate the juvenile hormone gene-repressive function.
Life Histories, Demography, and Distribution of a Fluvial Bull Trout Population
Authors: Howell Philip J. , Colvin Michael E. , Sankovich Paul M. , Buchanan David V. , Hemmingsen Alan R.
Published: January 2016

To describe the life histories and demography of a fluvial population of Bull TroutSalvelinus confluentus, we PIT‐tagged and radio‐tagged Bull Trout captured in Mill Creek, a tributary of the Walla Walla River (Washington–Oregon), during 1998–2009. Adult abundance declined 63% during 2006–2010, driven primarily by a 10‐fold reduction in subadult‐to‐adult returns. Larger subadults and fall–winter emigrants survived at higher rates, but they were a small proportion of the subadult migrants. The survival rates of larger, generally older adults were also more than 40% greater than those of smaller adults. Changes in abundance influenced other characteristics of the population. For example, adult upstream movement into spawning areas during 1999–2005 peaked in late July, whereas the smaller runs observed during 2006–2010 peaked in early September, and the relationship between fish size and migration timing shifted. Unlike many adfluvial populations, more than 90% of the adults in Mill Creek spawned annually. Bull Trout that spawned in main‐stem Mill Creek were primarily larger migratory adults; however, about 20% of the large adults were strictly or intermittently resident, remaining in the spawning area year‐round. The downstream extent of individuals' migratory distributions varied greatly—from just downstream of the spawning area to the mouth of the Walla Walla River and potentially hundreds of kilometers into the Columbia River. Despite a large sample size of radio‐tagged fish, radiotelemetry substantially underestimated the distribution and range that were evident from PIT tag detections. Life history terms such as “migratory,” “resident,” and “fluvial” and their associations with body size, movement, and distribution are useful for describing general patterns, but they fail to reflect the diversity and complexity within and among populations. For Bull Trout in Mill Creek, that life history diversity, including small, resident adult forms in the tributaries and a continuum of distribution for large adults, maximizes the use of available habitat and likely contributes to the population's persistence.
From Classic to Classy: Changing Fashions in Street Names
Authors: Algeo John
Published: January 2016

Street names in Athens, Georgia, are of two kinds: older, traditional, central, commemorative, directional = “classic,” and newer, innovative, suburban, evocative, given by real-estate developers for their commercial appeal = “classy.” The city of Athens is the site of the University of Georgia, the State Botanical Garden, the Georgia Museum of Art, and notably a double-barreled cannon, which was supposed to fire two chain-linked cannon balls simultaneously, but which succeeded on its trial shot only in demolishing a fence and killing a cow. The city was consolidated with Clarke County, yielding a population of some 120,000.
The Psychosocial Ramifications of Videogame Naming and Representation in the Early Years of The Simpsons
Authors: Butler James O.
Published: January 2016

The Simpsons is a parody of suburban American life, and, as one member of the titular family is a 10-year-old boy, videogames make a number of appearances. This article is a comprehensive overview of every occurrence or reference to gaming made within the first decade (1989–1999), and will assess the stereotypical aspects of both games and gamers made throughout the series. The majority of entries are not actively depicted on screen, but provide names that match the exaggerated over-the-top violent nature of those that are, which forms a consistent satirical depiction of the hobby. This study seeks to add a new voice to the argument for names possessing semantic content, especially artistic onyms, in the ongoing critical debate.
Costs of abandoning the Sure-Thing Principle
Authors: Briggs Rachael
Published: January 2016

Risk-weighted expected utility theory (REU theory for short) permits preferences which violate the Sure-Thing Principle (STP for short). But preferences that violate the STP can lead to bad decisions in sequential choice problems. In particular, they can lead decision-makers to adopt a strategy that is dominated – i.e. a strategy such that some available alternative leads to a better outcome in every possible state of the world.
Continuing on
Authors: Titelbaum Michael G.
Published: January 2016

What goes wrong, from a rational point of view, when an agent’s beliefs change while her evidence remains constant? I canvass a number of answers to this question suggested by recent literature, then identify some desiderata I would like any potential answer to meet. Finally, I suggest that the rational problem results from the undermining of reasoning processes (and possibly other epistemic processes) that are necessarily extended in time.
Your death might be the worst thing ever to happen to you (but maybe you shouldn’t care)
Authors: Timmerman Travis
Published: January 2016

Deprivationism cannot accommodate the common sense assumption that we should lament our death iff, and to the extent that, it is bad for us. Call this the Nothing Bad, Nothing to Lament Assumption. As such, either this assumption needs to be rejected or deprivationism does. I first argue that the Nothing Bad, Nothing to Lament Assumption is false. I then attempt to figure out which facts our attitudes concerning death should track. I suggest that each person should have two distinct attitudes toward death: one determined by agent’s reasonable expectations about when she will die and one determined by the amount of metaphysically possible good one reasonably believes death precludes.
Actovegin, a non‐prohibited drug increases oxidative capacity in human skeletal muscle
Authors: Søndergård Stine D. , Dela Flemming , Helge Jørn W. , Larsen Steen
Published: January 2016

Actovegin, a deproteinized haemodialysate of calf blood, is suggested to have ergogenic properties, but this potential effect has never been investigated in human skeletal muscle. To investigate this purported ergogenic effect, we measured the mitochondrial respiratory capacity in permeabilized human skeletal muscle fibres acutely exposed to Actovegin in a low and in a high dose. We found that Actovegin, in the presence of complex I‐linked substrates increased the oxidative phosphorylation (OXPHOS) capacity significantly in a concentration‐dependent manner (19 ± 3, 31 ± 4 and 45 ± 4 pmol/mg/s). Maximal OXPHOS capacity with complex I and II‐linked substrate was increased when the fibres were exposed to the high dose of Actovegin (62 ± 6 and 77 ± 6 pmol/mg/s) (p < .05). The respiratory capacity of the electron transfer system as well as Vmax and Km were also increased in a concentration‐dependent manner after Actovegin exposure (70 ± 6, 79 ± 6 and 88 ± 7 pmol/mg/s; 13 ± 2, 25 ± 3 and 37 ± 4 pmol/mg/s; 0.08 ± 0.02, 0.21 ± 0.03 and 0.36 ± 0.03 mM, respectively) (p < .05). In summary, we report for the first time that Actovegin has a marked effect on mitochondrial oxidative function in human skeletal muscle. Mitochondrial adaptations like this are also seen after a training program in human subjects. Whether this improvement translates into an ergogenic effect in athletes and thus reiterates the need to include Actovegin on the World Anti‐Doping Agency's active list remains to be investigated.
Topological facets of the logic of subset spaces (with emphasis on canonical models)
Authors: Heinemann Bernhard
Published: January 2016

Among other things, this article makes a small contribution to the field of bi-topological modal logic, as it is examined herein to what extent Moss and Parikh's logic of subset spaces, LSS, is topologically relevant. For that purpose, several spatial characteristics are identified and proved to correspond with the axioms of this logic in the sense of topological definability first. It turns out that a certain bi-modal cover property plays a crucial part in doing so. Then, the question is raised whether these properties are valid on the canonical topo-model for LSS. Our investigation into this finally results in a topological characterization of that model, and it leads us to studying additional schemata in the same way, namely bi-modal commutation relations. As one of the questions opening our exposition asks for the nature of the topologies induced by the two LSS-modalities, we present a corresponding characterization in the concluding part of the article.
The Texting Rhythm: A Novel EEG Waveform Using Smartphones
Authors: Tatum William O. , DiCiaccio Benedetto , Kipta Joseph A. , Yelvington Kirsten H. , Stein Michael A.
Published: January 2016

Introduction:

We report a unique EEG phenomenon in patients with paroxysmal neurological events undergoing video EEG monitoring.

Methods:

Two epilepsy centers analyzed the interictal scalp EEG in patients using personal electronic devices during epilepsy monitoring. The texting rhythm (TR) was defined as a reproducible, stimulus-evoked, generalized frontocentral monomorphic burst of 5–6 Hz theta consistently induced by active text messaging. An independent prospective and retrospective cohort was analyzed and compared from two sites in Florida and Illinois. We assessed age, gender, diagnosis, epilepsy classification, MRI, and EEG to compare patients with a TR. Analysis was performed with statistical significance set atP< 0.05.

Results:

We identified 24 of 98 evaluable patients with a TR in a prospective arm at one center and 7 of 31 patients in a retrospective arm at another totaling 31/129 (24.0%). The waveform prevalence was similar at both centers independent of location. TR was highly specific to active texting. A similar waveform during independent cognitive, speech or language, motor activation and audio cellular telephone use was absent (P< 0.0001). It appeared to be increased in patients with epilepsy in one cohort (P= 0.03) and generalized seizures in the other (P= 0.025). Age, gender, epilepsy type, MRI results, and EEG lateralization in patients with focal epileptic seizures did not bear a relationship to the presence of a TR in either arm of the study (P= NS).

Conclusions:

The TR is a novel waveform time-locked to text messaging and associated with active use of smartphones. Electroencephalographers should be aware of the TR to separate it from an abnormality in patients undergoing video EEG monitoring. Larger sample sizes and additional research may help define the significance of this unique cognitive-visual-cognitive-motor network that is technology-related and task-specific with implications in communication research and transportation safety.
Slow-Wave Oscillations in Awake Healthy Subjects: Methodological and Physiological Considerations
Authors: Kaltiainen Hanna-Leena , Helle Liisa M. , Renvall Hanna M.-L. , Forss Nina H.
Published: January 2016

Purpose:

Detection of pathologic slow-wave oscillations (0.5–7 Hz) in awake subjects has gained increasing interest in clinical diagnostics. Their significance, however, is hampered by the occasional presence of slow waves in healthy subjects, as well as the abundance of artefactual signals at low measurement frequencies. The aim of this study was to assess the occurrence of slow-wave oscillations in healthy subjects and to sharpen the management of possible measurement artifacts, in order to create a normative database for neurological patients.

Methods:

The authors analyzed magnetoencephalography recordings of spontaneous brain oscillations in 139 awake healthy adults. Sources of artifacts were first identified and suppressed by temporal extension of signal space separation method, and the remaining artifact components were projected out using signal space projection. Individual amplitude spectra were compared with the channel-level average spectra over all subjects.

Results:

Slow-wave oscillations deviating ±2 standard deviations from the average spectrum were detected in 12 subjects (∼9%). In 10 subjects, the oscillations were considered as normal physiological phenomena. Only two subjects showed activity that could have been interpreted as pathological: one subject with widespread parietal bilateral polyrhythmic slow-wave activity and one with focal rolandic 2.7-Hz slow-wave activity.

Conclusions:

The prevalence of slow-wave oscillations in a healthy adult population is low. Knowledge about their occurrence, however, is essential for interpreting their significance in brain diseases. Artifacts and benign oscillatory variants at slow frequencies have to be recognized.
Crystal structure of aqua(nitrato-κO)dioxido{2-[3-(pyridin-2-yl-κN)-1H-1,2,4-triazol-5-yl-κN4]phenolato-κO}uranium(VI) acetonitrile monosolvate monohydrate
Authors: Vashchenko Oleksandr , Raspertova Ilona , Dyakonenko Viktoriya , Shishkina Svitlana , Khomenko Dmytro , Doroschuk Roman , Lampeka Rostislav
Published: January 2016

In the title compound, [U(C13H9N4O)(NO3)O2(H2O)]·CH3CN·H2O, the UVIatom is seven-coordinated in a distorted pentagonal–bipyramidal N2O5manner by one tridentate triazole ligand, one monodentate nitrate anion and one water molecule in the equatorial plane and by two uranyl(VI) O atoms in the axial positions. In the crystal, the UVIcomplex molecule is linked to the water and acetonitrile solvent molecules through N—H...N, O—H...O and O—H...N hydrogen bonds, forming a sheet structure parallel to thebcplane. The sheets are further linked by an additional O—H...O hydrogen bond, forming a three-dimensional network.
Crystal structure ofN-(3-oxobutanoyl)-L-homoserine lactone
Authors: Newberry R.W. , Raines R.T.
Published: January 2016

The structure and absolute configuration of the title compound, C8H11NO4, which is a known quorum-sensing modulator, have been determined. The molecule exhibits signs of an intramolecular attractive carbonyl–carbonyln→π*interaction between the amide and lactone ester groups, specifically – a short contact of 2.709 (2) Å between the amide oxygen atom and ester carbon atom, approach of the amide oxygen atom to the ester carbonyl group along the Bürgi–Dunitz trajectory, at 99.1 (1)°, and pyramidalization of the ester carbonyl group by 1.1 (1)°. Moreover, a similarn→π*interaction is observed for the amide carbonyl group approached by the ketone oxygen donor. These interactions apparently affect the conformation of the uncomplexed molecule, which adopts a different shape when bound to protein receptors. In the crystal, the molecules form translational chains along theaaxisviaN—H...O hydrogen bonds.
An analysis of collection development in the university libraries of Pakistan
Authors: Khan Ghalib , Bhatti Rubina
Published: January 2016

Purpose

– The study aims to explore the factors which influence collection development and management in academic libraries. In libraries and information centres, collection development is considered an essential element of the information life cycle. Collection development and management activities do not emanate from a vacuum. Several factors have a direct bearing on the way in which collections are developed and managed in the academic libraries. These factors are bridges and barriers for effective collection development and management.

Design/methodology/approach

– An extensive review of the available literature was made to conduct the study.

Findings

– The study found that several factors have a direct bearing on the way in which collections are developed and managed in the academic libraries. These factors include goals of collection development and management policies and procedures, user needs, collection development policies (CDPs), collection development budgets, collection evaluation to determine the strength and weaknesses of various subjects in the collections, selection of reading materials, formats in which materials are selected, the issues of access versus ownership, cooperative collection development, resource-sharing programs and legal issues in collection development and management.

Originality/value

– This study provides an overview of various factors that influence collection development activities in the academic libraries. It provides an insight for the selectors of library resources to take these factors into account for building effective collections in the academic libraries of Pakistan and abroad.
Report from the Charleston Conference 2015
Authors: Cassell Kay Ann
Published: January 2016

Purpose

– This paper aims to present a report on the 2015 Charleston Conference.

Design/methodology/approach

– This paper is based on information gained at the conference.

Findings

– Areas covered are privacy, the importance of the article, open access and electronic resources.

Originality/value

– Conference of value to those interested in collection development, etc.