bluuebunny/crossref_metadata_2025 huggingface dataset:
Identification of accelerants, fuels and post-combustion residues using a colorimetric sensor array
Authors: Li Zheng , Jang Minseok , Askim Jon R. , Suslick Kenneth S.
Published: July 2015

A linear (1 × 36) colorimetric sensor array has been integrated with a pre-oxidation technique for detection and identification of a variety of fuels and post-combustion residues.
Carboxylic-group-functionalized single-walled carbon nanohorns as peroxidase mimetics and their application to glucose detection
Authors: Zhu Shuyun , Zhao Xian-En , You Jinmao , Xu Guobao , Wang Hua
Published: July 2015

Carboxylic-group-functionalized single-walled carbon nanohorns (SWCNHs-COOH) have been found to possess peroxidase-like activity for the first time.
Development of a green method for separation and identification of the degradation impurity of isoniazid by SFC-MS/MS
Authors: Prajapati Prajesh , Agrawal Y. K.
Published: July 2015

To produce an eco-friendly stability indicating method, the reaction solutions containing degradation products of isoniazid were used for separation and optimized by varying the supercritical fluid chromatography (SFC) conditions.
A SOI-nanowire biosensor for the multiple detection of D-NFATc1 protein in the serum
Authors: Malsagova Kristina A. , Ivanov Yuri D. , Pleshakova Tatyana O. , Kaysheva Anna L. , Shumov Ivan D. , Kozlov Andrey F. , Archakov Alexander I. , Popov Vladimir P. , Fomin Boris I. , Latyshev Alexander V.
Published: July 2015

Aptamer-functionalized silicon-on-insulator nanowires were used for the label-free, real-time biospecific detection of the cancer marker D-NFATc1 protein in the serum.
Correction: Separation of micro-phytoplankton from inorganic particulate in Antarctic seawater (Ross Sea) for the determination of Cd, Pb and Cu: optimization of the analytical methodology
Authors: Truzzi C. , Annibaldi A. , Finale C. , Libani G. , Romagnoli T. , Scarponi G. , Illuminati S.
Published: July 2015

Correction for ‘Separation of micro-phytoplankton from inorganic particulate in Antarctic seawater (Ross Sea) for the determination of Cd, Pb and Cu: optimization of the analytical methodology’ by C. Truzzi et al., Anal. Methods, 2015, 7, 5490–5496.
Moulding calixarenes for biomacromolecule targeting
Authors: Giuliani Marta , Morbioli Ilaria , Sansone Francesco , Casnati Alessandro
Published: July 2015

The main rules that can be used to mould multivalent calixarene macrocycles for obtaining efficient and successful ligands for biomacromolecule recognition are outlined and described with the help of selected literature examples.
The Mukaiyama aldol reaction of in situ generated nitrosocarbonyl compounds: selective C–N bond formation and N–O bond cleavage in one-pot for α-amination of ketones
Authors: Ramakrishna Isai , Grandhi Gowri Sankar , Sahoo Harekrishna , Baidya Mahiuddin
Published: July 2015

A practical protocol for the α-amination of ketones (up to 99% yield) has been developed via the Mukaiyama aldol reaction of in situ generated nitrosocarbonyl compounds.
Correction: A ring to rule them all: a cyclic ketene acetal comonomer controls the nitroxide-mediated polymerization of methacrylates and confers tunable degradability
Authors: Delplace Vianney , Guégain Elise , Harrisson Simon , Gigmes Didier , Guillaneuf Yohann , Nicolas Julien
Published: July 2015

Correction for ‘A ring to rule them all: a cyclic ketene acetal comonomer controls the nitroxide-mediated polymerization of methacrylates and confers tunable degradability’ by Vianney Delplace et al., Chem. Commun., 2015, DOI: 10.1039/c5cc04610f.
In situ studies of lithium-ion diffusion in a lithium-rich thin film cathode by scanning probe microscopy techniques
Authors: Yang Shan , Yan Binggong , Li Tao , Zhu Jing , Lu Li , Zeng Kaiyang
Published: July 2015

Band-excitation Electrochemical Strain Microscopy (BE-ESM) imaging and diffusion coefficient mapping of Li-rich cathode film.
Locating the nucleation sites for protein encapsulated gold nanoclusters: a molecular dynamics and fluorescence study
Authors: Russell B. A. , Kubiak-Ossowska K. , Mulheran P. A. , Birch D. J. S. , Chen Y.
Published: July 2015

Fluorescent gold nanoclusters encapsulated by proteins have attracted considerable attention in recent years for their unique properties as new fluorescence probes for biological sensing and imaging.
Graphene scavenges free radicals to synergistically enhance structural properties in a gamma-irradiated polyethylene composite through enhanced interfacial interactions
Authors: Kolanthai Elayaraja , Bose Suryasarathi , Bhagyashree K. S. , Bhat S. V. , Asokan K. , Kanjilal D. , Chatterjee Kaushik
Published: July 2015

A unique strategy for scavenging free radicals in situ on exposure to gamma irradiation in polyethylene (PE) nanocomposites is presented.
Tunable electronic and magnetic properties of monolayer MoS2 on decorated AlN nanosheets: a van der Waals density functional study
Authors: He C. , Zhang W. X. , Li T. , Zhao L. , Wang X. G.
Published: July 2015

The structural, electronic, and magnetic properties of monolayer MoS2 on decorated AlN nanosheets have been systematically investigated using density functional theory with van der Waals corrections.
Role of temperature in the recombination reaction on dye-sensitized solar cells
Authors: Maçaira J. , Mesquita I. , Andrade L. , Mendes A.
Published: July 2015

The DSC recombination kinetics was studied up to 100 °C without electrolyte leakage or external contamination using a unique laser assisted glass sealing process. In addition to temperature having a strong influence on the recombination reaction rate, the energy of the exited electrons was found to be critical for determining the recombination activation energy.
How does low temperature coupled with different pressures affect initiation mechanisms and subsequent decompositions in nitramine explosive HMX?
Authors: Wu Qiong , Xiong Guolin , Zhu Weihua , Xiao Heming
Published: July 2015

We have performed ab initio molecular dynamics simulations to study coupling effects of temperature (534–873 K) and pressure (1–20 GPa) on the initiation mechanisms and subsequent chemical decompositions of nitramine explosive 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX).
FRET versus PET: ratiometric chemosensors assembled from naphthalimide dyes and crown ethers
Authors: Panchenko Pavel A. , Fedorov Yuri V. , Fedorova Olga A. , Jonusauskas Gediminas
Published: July 2015

Crown-containing naphthalimide dyads exhibited a ratiometric fluorescence response in the presence of metal cations and protons resulting from the competition between PET and FRET processes.
Anatase-driven charge transfer involving a spin transition in cobalt iron cyanide nanostructures
Authors: Giorgetti Marco , Aquilanti Giuliana , Ciabocco Michela , Berrettoni Mario
Published: July 2015

A charge transfer between Fe and Co in cobalt hexacyanoferrate takes place with concomitant spin transition at the Co site.
Reaction kinetics for the solid state synthesis of the AlH3/MgCl2 nano-composite by mechanical milling
Authors: Duan C. W. , Hu L. X. , Sun Y. , Zhou H. P. , Yu H.
Published: July 2015

An investigation of the kinetics of the solid state reaction between nanocrystalline magnesium hydride (MgH2) and aluminum chloride (AlCl3).
Spin-frustration in a new spin-1/2 oxyfluoride system (Cu13(VO4)4(OH)10F4) constructed by alternatively distorted kagome-like and triangular lattices
Authors: Yang Ming , Zhang Su-Yun , Guo Wen-Bin , Tang Ying-Ying , He Zhang-Zhen
Published: July 2015

The titled compound, featuring the coexistence of kagome-like and triangular layers, exhibits long-range antiferromagnetic ordering, strong spin-frustration and spin-flop.
In vitro fermentation of lupin seeds (Lupinus albus) and broad beans (Vicia faba): dynamic modulation of the intestinal microbiota and metabolomic output
Authors: Gullón Patricia , Gullón Beatriz , Tavaria Freni , Vasconcelos Marta , Gomes Ana Maria
Published: July 2015

Broad beans (Vicia faba) and lupin seeds (Lupinus albus) are legumes rich in a wide range of compounds, which may represent a useful dietary approach for modulating the human gut microbiome.
Hybrid bipolar membrane electrodialysis/ultrafiltration technology assisted by a pulsed electric field for casein production
Authors: Mikhaylin Sergey , Nikonenko Victor , Pourcelly Gérald , Bazinet Laurent
Published: July 2015

Ecofriendly EDBM-UF-PEF technology demonstrates good performance in the isoelectric casein precipitation process due to elimination of EDBM stack clogging and a decrease in membrane scaling.
Rapid and fully automated bacterial pathogen detection on a centrifugal-microfluidic LabDisk using highly sensitive nested PCR with integrated sample preparation
Authors: Czilwik G. , Messinger T. , Strohmeier O. , Wadle S. , von Stetten F. , Paust N. , Roth G. , Zengerle R. , Saarinen P. , Niittymäki J. , McAllister K. , Sheils O. , O'Leary J. , Mark D.
Published: July 2015

Integrated PCR LabDisk and portable LabDisk-Player.
Highly porous ZnO nanosheets self-assembled in rosette-like morphologies for dye-sensitized solar cell application
Authors: Umar Ahmad , Akhtar Mohammad Shaheer , Al-Assiri Mohammed Sultan , Al-Hajry Ali , Algarni Hamed , de Mendonça Vagner Romito , Masuda Yoshitake , Kim Sang Hoon , Rahman Qazi Inamur
Published: July 2015

Facile and direct growth of highly porous ZnO nanosheets self-assembled in rosette-like morphologies on ITO for high performance dye-sensitized solar cell application.
Metal complexes with bis(2-pyridyl)diselenoethers: structural chemistry and catalysis
Authors: Cargnelutti Roberta , da Silva Felipe Dornelles , Abram Ulrich , Lang Ernesto Schulz
Published: July 2015

Bis(2-pyridyl)diselenoethers are versatile ligands for the synthesis of transition metal complexes. Some products show remarkable catalytic activities.
Highly sensitive and fast phototransistor based on large size CVD-grown SnS2nanosheets
Authors: Huang Yun , Deng Hui-Xiong , Xu Kai , Wang Zhen-Xing , Wang Qi-Sheng , Wang Feng-Mei , Wang Feng , Zhan Xue-Ying , Li Shu-Shen , Luo Jun-Wei , He Jun
Published: July 2015

A highly sensitive phototransistor with a large on/off ratio and short photoresponse time is fabricated on CVD grown SnS2NSs.
Base-promoted cascade reaction of isocyanides, selenium and amines: a practical approach to 2-aminobenzo[d][1,3]selenazines under metal-free conditions
Authors: Fang Yi , Wang Shun-Yi , Shen Xiao-Bin , Ji Shun-Jun
Published: July 2015

An efficient method for the construction of 2-aminobenzo[d][1,3]selenazines under metal-free conditions was established.
Sensitive and selective determination of aqueous triclosan based on gold nanoparticles on polyoxometalate/reduced graphene oxide nanohybrid
Authors: Yola Mehmet Lütfi , Atar Necip , Eren Tanju , Karimi-Maleh Hassan , Wang Shaobin
Published: July 2015

A novel molecular-imprinted electrochemical sensor based on gold nanoparticles decorating polyoxometalate (H3PW12O40)/reduced graphene oxide was developed for determination of trace TCS in wastewater.
HCl and PCDD/Fs emission characteristics from incineration of source-classified combustible solid waste in fluidized bed
Authors: Li Yanji , Wang Huihui , Jiang Lu , Zhang Wei , Li Rundong , Chi Yong
Published: July 2015

Adding different quantities of CaO in combustible solid waste can inhibit the production of PCDD/Fs during incineration.
Study on coating growth characteristics during the electrolytic oxidation of a magnesium–lithium alloy by optical emission spectroscopy analysis
Authors: Yao Zhongping , Xia Qixing , Wei Han , Li Dongqi , Sun Qiu , Jiang Zhaohua
Published: July 2015

The aim of this study is to analyze the composition, structure and growth characteristics of plasma electrolytic oxidation (PEO) coatings through optical emission spectroscopy (OES).
Excitation dependent recombination studies on SnO2/TiO2electrospun nanofibers
Authors: Jagadeesh babu Veluru , Vempati Sesha , Ertas Yelda , Uyar Tamer
Published: July 2015

SnO2–TiO2electrospun nanofibers and their excitation dependent recombination.
Low temperature synthesis and characterization of substitutional Na-modified K2Ti6O13 nanobelts with improved photocatalytic activity under UV irradiation
Authors: Wang Qiang , Guo Qingjun , Li Bing
Published: July 2015

High-quality substitutional Na-modified K2Ti6O13 nanobelts with improved photocatalytic activity were synthesized efficiently from NaCl–KCl melts below 700 °C.
Morphological evolution and visible light driven degradation of tetracycline by Bi3.84W0.16O6.24 nanostructures
Authors: Li Xinying , Wang Liping , Shi Weidong , Song Chengjie , Xu Dongbo , Liu Jingjing
Published: July 2015

In this work, two morphologies of Bi3.84W0.16O6.24 nanostructures, namely the nanobelt (T2) and nanooctahedral structure (T15), were synthesized via a simple, microwave-assisted method.
Iodine-mediated synthesis of (E)-vinyl sulfones from sodium sulfinates and cinnamic acids in aqueous medium
Authors: Gao Jian , Lai Junyi , Yuan Gaoqing
Published: July 2015

A green and highly efficient method for the synthesis of (E)-vinyl sulfones promoted by iodine in water has been developed, without transition metal catalysts and ligands.
Surface-enhanced Raman scattering on a silver film-modified Au nanoparticle-decorated SiO2 mask array
Authors: Chang Chi-Ching , Chen Liang-Yih , Yang Kuang-Hsuan , Chen Qing-Ye , Liang Yu-Chih , Lin Shyr-Yi , Liu Yu-Chuan
Published: July 2015

SERS of R6G absorbed on this developed array exhibits a higher intensity by ca. 30-fold, as compared with that of R6G absorbed on the Au NP-based array without the modification of Ag films.
The organocatalyzed domino Michael–aldol reaction revisited. Synthesis of enantioenriched 3-hydroxycyclohexanone derivatives by reaction of enals with α,α′-diaryl-substituted acetone
Authors: Guevara-Pulido James O. , Andrés José M. , Pedrosa Rafael
Published: July 2015

The reaction of enals with α,α′-diaryl-substituted acetones (pKa> 18) catalyzed by (S)-1-(2-pyrrolidinylmethyl) pyrrolidine provides direct access to enantioenriched 2,5,6-trisubstituted-3-hydroxy cyclohexanones.
Nanoscale homogeneity of silica–poly(vinyl alcohol) membranes by controlled cross-linking via sol–gel reaction in acidified and hydrated ethanol
Authors: Chaudhri Sanjay G. , Rajai Bhavika H. , Singh Puyam S.
Published: July 2015

A sol–gel reaction synthesis route in acidified and hydrated ethanol to prepare a silica–poly(vinyl alcohol) hybrid membrane of nanoscale homogeneity is reported.
The structure and magnetic properties of Fe3N as a photocatalyst applied in hydrogen generation induced by visible light
Authors: Zhang Peng , Wang Xiaobai , Wang Wei , Lei Xiang , Yin Wenxu , Yang Hua
Published: July 2015

Fe3N can be efficiently synthesized from an iron-ethanediamine precursor, whose diameter can be controlled by the synergistic effect of acetone and ethanediamine.
An ionic liquid immobilized copper complex for catalytic epoxidation
Authors: Dileep R. , Rudresha B. J.
Published: July 2015

A catalytic system consisting of copper complex and hydrogen peroxide in Emim ionic liquid medium was effective in the epoxidation of olefins and terpenes. The catalyst and the ionic liquid mixture was recycled and reused consistently.
Multifunctional ionic hybrid poly(propyleneimine) dendrimers surrounded by carbazole dendrons: liquid crystals, optical and electrochemical properties
Authors: Castelar Susana , Romero Pilar , Serrano José-Luis , Barberá Joaquín , Marcos Mercedes
Published: July 2015

Hybrid ionic dendrimers prepared via ionic self-assembly by grafting of a cationic PPI dendrimer with bifunctional electroactive carbazole dendrons, display photoluminescence properties and self-assembly into nematic, smectic or columnar mesophases.
New approach for post-functionalization of meso-formylporphyrins
Authors: Birin Kirill P. , Gorbunova Yulia G. , Tsivadze Aslan Yu.
Published: July 2015

An approach for the transformation of formyl groups into areneimidazoles at a porphyrin substrate is developed, allowing straightforward design of new polytopic porphyrinoid compounds.
Correction: Highly selective aluminium-catalysed intramolecular Prins reaction for l-menthol synthesis
Authors: Itoh H. , Maeda H. , Yamada S. , Hori Y. , Mino T. , Sakamoto Masami
Published: July 2015

Correction for ‘Highly selective aluminium-catalysed intramolecular Prins reaction for l-menthol synthesis’ by H. Itoh et al., RSC Adv., 2014, 4, 61619–61623.
Systematic and simulation-free coarse graining of homopolymer melts: a relative-entropy-based study
Authors: Yang Delian , Wang Qiang
Published: July 2015

Relative-entropy-based coarse graining is applied to polymers for the first time using a systematic and simulation-free strategy.
Glancing angle metal evaporation synthesis of catalytic swimming Janus colloids with well defined angular velocity
Authors: Archer R. J. , Campbell A. I. , Ebbens S. J.
Published: July 2015

We demonstrate that glancing angle metal deposition can produce autonomous catalytic swimming colloids with well defined angular velocity.
Computer simulations of single particles in external electric fields
Authors: Zhou Jiajia , Schmid Friederike
Published: July 2015

We review recent coarse-grained simulations of colloidal particles and polyelectrolyte chains in external electric fields.
Design of N-doped graphene-coated cobalt-based nanoparticles supported on ceria
Authors: Stemmler T. , Chen F. , Pisiewicz S. , Surkus A.-E. , Pohl M.-M. , Topf C. , Beller M.
Published: July 2015

A straightforward preparation and detailed characterization of cobalt-based nanoparticles incorporated within a N-doped graphene-type matrix attached to ceria as support (Co3O4/NGr@CeO2) is demonstrated. In general, the active catalytic material is provided by wet impregnation of ceria with a nitrogen ligated–cobalt chelate and subsequent pyrolysis.
In situ preparation of N–ZnO/graphene nanocomposites: excellent candidate as a photocatalyst for enhanced solar hydrogen generation and high performance supercapacitor electrode
Authors: Bhirud Ashwini , Sathaye Shivaram , Waichal Rupali , Park Chan-Jin , Kale Bharat
Published: July 2015

N–ZnO/GR nanocomposites are synthesized by anin situwet chemical method which show superior photocatalytic H2production and high supercapacitive performance.
Accelerating the healing of superhydrophobicity through photothermogenesis
Authors: Liu Yanhua , Pei Xiaowei , Liu Zhilu , Yu Bo , Yan Pengxun , Zhou Feng
Published: July 2015

Self-healing superhydrophobic fabric was fabricated by a mussel-inspired method using PDA@ODA–Fe3O4 nanocapsules. Fast healing of superhydrophobicity can be realized in 40 s under NIR irradiation due to photothermal effect of Fe3O4 nanoparticles.
Interface engineering for high-performance perovskite hybrid solar cells
Authors: Zhou Zhongmin , Pang Shuping , Liu Zhihong , Xu Hongxia , Cui Guanglei
Published: July 2015

In this review, we present recent advances in interface engineering at different interfaces in perovskite solar cells.
Electrochemically induced surface modifications of mesoporous spinels (Co3O4−δ, MnCo2O4−δ, NiCo2O4−δ) as the origin of the OER activity and stability in alkaline medium
Authors: Abidat I. , Bouchenafa-Saib N. , Habrioux A. , Comminges C. , Canaff C. , Rousseau J. , Napporn T. W. , Dambournet D. , Borkiewicz O. , Kokoh K. B.
Published: July 2015

Oxygen deficient mesoporous cobaltites synthesized using nanocasting technique show high OER activity and surface modifications induced by potential cycling.
Aligned carbon nanotube/molybdenum disulfide hybrids for effective fibrous supercapacitors and lithium ion batteries
Authors: Luo Yongfeng , Zhang Ye , Zhao Yang , Fang Xin , Ren Jing , Weng Wei , Jiang Yishu , Sun Hao , Wang Bingjie , Cheng Xunliang , Peng Huisheng
Published: July 2015

An aligned carbon nanotube/MoS2 nanosheet hybrid fiber with remarkable electrochemical properties is synthesized. It is used to fabricate flexible fibrous supercapacitors and lithium ion batteries with high specific capacitances and high specific capacities, respectively.
Tuning visible-light absorption properties of Ru–diacetylide complexes: simple access to colorful efficient dyes for DSSCs
Authors: De Sousa Samuel , Lyu Siliu , Ducasse Laurent , Toupance Thierry , Olivier Céline
Published: July 2015

An attractive color palette of red, violet and blue-green chromophores was prepared for dye-sensitized solar cell applications. The chromophores are used in single-dye and co-sensitized devices.
Simultaneous visual detection and removal of lead(ii) ions with pyromellitic dianhydride-grafted cellulose nanofibrous membranes
Authors: Li Yan , Wen Yanan , Wang Lihuan , He Jianxin , Al-Deyab Salem S. , El-Newehy Mohamed , Yu Jianyong , Ding Bin
Published: July 2015

Simultaneous colorimetric assay and removal of lead(ii) ions with pyromellitic dianhydride-grafted cellulose nanofibrous membranes.
Adsorption characteristics of noble metal ions onto modified straw bearing amine and thiol groups
Authors: Wang Jingjing , Li Juan , Wei Jun
Published: July 2015

Wheat straw was chemically modified by introducing amine and thiol groups in order to improve its adsorption capacity and selective adsorption ability towards noble metal ions.
Virus-inspired mimics: self-assembly of dendritic lipopeptides into arginine-rich nanovectors for improving gene delivery
Authors: Xu Xianghui , Jiang Qian , Zhang Xiao , Nie Yu , Zhang Zhijun , Li Yunkun , Cheng Gang , Gu Zhongwei
Published: July 2015

With inspirations from natural viruses, arginine-containing dendritic lipopeptides were designed for bioinspired fabrication.
Fabrication of transparent conducting films composed of In3+ doped CuS and their application in flexible electroluminescent devices
Authors: Patel Dinesh K. , Kamyshny Alexander , Ariando Ariando , Zhen Huang , Magdassi Shlomo
Published: July 2015

In3+ ion doped CuS transparent conducting films were fabricated at room temperature on PET and were used to fabricate a flexible electroluminescent (EL) device.
Effect of the cyano group on solid state photophysical behavior of tetraphenylethene substituted benzothiadiazoles
Authors: Jadhav Thaksen , Dhokale Bhausaheb , Misra Rajneesh
Published: July 2015

Two unsymmetrical tetraphenylethene (TPE) substituted Donor–Acceptor (D–A) benzothiadiazoles (BTDs) 3a, and 3b were designed and synthesized by the Suzuki cross-coupling reaction.
c-Abl-mediated tyrosine phosphorylation of JunB is required for Adriamycin-induced expression of p21
Authors: Yamaguchi Noritaka , Yuki Ryuzaburo , Kubota Sho , Aoyama Kazumasa , Kuga Takahisa , Hashimoto Yuuki , Tomonaga Takeshi , Yamaguchi Naoto
Published: July 2015

The non-receptor-type tyrosine kinase c-Abl functions as a cytoplasmic signal transducer upon activation of cell-surface receptors. c-Abl is also involved in DDR (DNA-damage response), which is initiated in the nucleus, whereas its molecular functions in DDR are not fully understood. In the present study, we found that c-Abl phosphorylates JunB, a member of the AP-1 (activator protein 1) transcription factor family. Because JunB was suggested to be involved in DDR, we analysed the role of c-Abl-mediated phosphorylation of JunB in DDR. We first analysed phosphorylation sites of JunB and found that c-Abl majorly phosphorylates JunB at Tyr173, Tyr182 and Tyr188. Because c-Abl promotes expression of the cyclin-dependent kinase inhibitor p21 upon stimulation with the DNA-damaging agent Adriamycin (doxorubicin), we analysed the involvement of JunB in Adriamycin-induced p21 expression. We found that JunB suppresses p21 induction through inhibition of its promoter activity. The phosphomimetic JunB, which was generated by glutamic acid substitutions at the phosphorylation sites, failed to repress p21 induction. Recruitment of JunB to the p21 promoter was promoted by Adriamycin stimulation and was further enhanced by co-treatment with the c-Abl inhibitor imatinib. The phosphomimetic glutamic acid substitutions in JunB or Adriamycin treatment impaired the JunB–c-Fos transcription factor complex formation. Taken together, these results suggest that, although JunB represses p21 promoter activity, c-Abl phosphorylates JunB and conversely inhibits its suppressive role on p21 promoter activity upon Adriamycin stimulation. Therefore JunB is likely to be a key target of c-Abl in expression of p21 in Adriamycin-induced DDR.
Identification of residues in ABCG2 affecting protein trafficking and drug transport, using co-evolutionary analysis of ABCG sequences
Authors: Haider Ameena J. , Cox Megan H. , Jones Natalie , Goode Alice J. , Bridge Katherine S. , Wong Kelvin , Briggs Deborah , Kerr Ian D.
Published: July 2015

ABCG2 is an ABC (ATP-binding cassette) transporter with a physiological role in urate transport in the kidney and is also implicated in multi-drug efflux from a number of organs in the body. The trafficking of the protein and the mechanism by which it recognizes and transports diverse drugs are important areas of research. In the current study, we have made a series of single amino acid mutations in ABCG2 on the basis of sequence analysis. Mutant isoforms were characterized for cell surface expression and function. One mutant (I573A) showed disrupted glycosylation and reduced trafficking kinetics. In contrast with many ABC transporter folding mutations which appear to be ‘rescued’ by chemical chaperones or low temperature incubation, the I573A mutation was not enriched at the cell surface by either treatment, with the majority of the protein being retained in the endoplasmic reticulum (ER). Two other mutations (P485A and M549A) showed distinct effects on transport of ABCG2 substrates reinforcing the role of TM helix 3 in drug recognition and transport and indicating the presence of intracellular coupling regions in ABCG2.
High dynamic range microwave power sensor with thermopile and curled cantilever beam
Authors: Yan Jiabin , Liao Xiaoping , Yi Zhenxiang
Published: July 2015

A high dynamic range microwave power sensor compatible with the gallium arsenide monolithic microwave integrated circuit process is presented. The power sensor consists of a thermoelectric power sensor and a capacitive power sensor for low and high power detection, respectively. To improve the dynamic range and optimise the impedance matching characteristic, the curled cantilever beam is utilised and the slot width of the coplanar waveguide transmission line is modified. The measured return loss is lower than –25.5 dB at 8–12 GHz. The output of the power sensor shows good linearity with the incident radio frequency power. For the incident power from 0.1 to 100 mW, the obtained sensitivities by a thermoelectric power sensor are about 0.0842, 0.0752 and 0.0701 mV/mW at 8, 10 and 12 GHz, respectively. For the incident power from 100 to 400 mW, the measured sensitivities by the capacitive power senor are about 0.0400, 0.0301 and 0.199 fF/mW at 8, 10 and 12 GHz, respectively.
Design of GSM/LTE multiband application for mobile phone antennas
Authors: Chou Yu‐Jen , Lin Guo‐Sheng , Chen Jun‐Fu , Chen Lih‐Shan , Houng Mau‐Phon
Published: July 2015

A novel compact multiband planar antenna fed by a microstrip line structure is presented. The proposed antenna is developed for wireless communication applications of the global system for mobile (GSM) communication and long‐term evolution (LTE) in different service bands of 900, 1800, 1900, 2300, and 2500 MHz. The antenna has five bands, and the structure is a combination of a monopole antenna and a coupled ground line fabricated on an FR4 substrate. The proposed antenna can be embedded in mobile phones for GSM and LTE applications. The measured peak gains are ∼2.12 and 3.82 dBi for the GSM and LTE bands, respectively.
Distributed multi‐object localisation by consensus on compressive sampling received signal strength fingerprints
Authors: Wang Dongli , Zhou Yan , Wei Yanhua , Pei Tingrui
Published: July 2015

Recent growing interest for location‐based services has created a demand on object localisation approaches with low cost and high accuracy. In this study, the problem of distributed multi‐object localisation using fingerprints of received signal strength (RSS) is addressed by combining average consensus and compressed sensing. First, Bayesian compressed sensing is employed at each agent to recover the sparse index vector from RSS measurements, which are corrupted by noises. It relaxes the requirement on accurate prior position knowledge of beacon nodes and is applicable in non‐line‐of‐sight conditions. Then, average consensus is adopted to compel all agents to reach an agreement on the index vector, and in turn, on the location of objects. By using only one‐hop neighbours’ information, the proposed distributed localisation method is applicable to large‐scale networks. Moreover, the final location of each object is obtainable from each individual agent, which makes the proposed method flexible to the network administration. Experimental results are included to demonstrate the effectiveness of the proposed method.
Interference coordination strategy based on Nash bargaining for small‐cell networks
Authors: Yu Guanding , Xu Yang , Yin Rui , Qu Fengzhong
Published: July 2015

In this study, a distributed scheme based on the Nash bargaining model is designed to coordinate co‐channel interference for small‐cell networks. The authors consider a scenario that resource blocks can be reused among different small cells. Different to existing works where resource allocation is conducted at the base stations, they propose the scheme where user initialises resource bargaining request to the serving base station once its quality‐of‐service cannot be satisfied because of the severe co‐channel interference from other users. Since the general bargaining problem is a non‐linear integer optimisation, the genetic algorithm is utilised to solve it. They also develop a low‐complexity bargaining model which only takes into account the strongest co‐channel interference. Simulation results show that the proposed distributed scheme can effectively reduce the outage probability of users and improve the system throughput. In addition, the proposed low‐complexity bargaining solution can achieve a close performance to the genetic algorithm‐based solution.
Survey of smartphone‐based sensing in vehicles for intelligent transportation system applications
Authors: Engelbrecht Jarret , Booysen Marthinus Johannes , van Rooyen Gert‐Jan , Bruwer Frederick Johannes
Published: July 2015

Road crashes are a growing concern of governments and are rising to become one of the leading preventable causes of death, especially in developing countries. The ubiquitous presence of smartphones provides a new platform on which to implement sensor networks and driver‐assistance systems, as well as other intelligent transportation system (ITS) applications. In this study, existing approaches of using smartphones for ITS applications are analysed and compared. Particular focus is placed on vehicle‐based monitoring systems, such as driving behaviour and style recognition, accident detection and road condition monitoring systems. Further opportunities for use of smartphones in ITS systems are highlighted, and remaining challenges in this emerging field of research are identified.
NetLogo implementation of an ant colony optimisation solution to the traffic problem
Authors: Jerry Kponyo , Yujun Kuang , Kwasi Opare , Enzhan Zhang , Parfait Tebe
Published: July 2015

Current traffic control systems regulate traffic flows only by switching traffic lights according to historical data. Status‐prediction and routing services also rely on historical data and as such the accuracy of such predictions cannot be fully relied upon. This paper models the traffic control problem as a multi‐agent‐multi‐purpose system (MAMP) inspired by ant colony optimisation (ACO). Traffic information is collected by the vehicles, rather than fixed roadside infrastructure in this system. Moreover, the information is collected and shared among the vehicles in a distributed manner. The proposed distributed intelligent traffic system (DITS) is implemented in NetLogo and experiments are conducted on two variations of the system, one with ACO, the other without ACO to investigate the impact of ACO on the solution to the traffic problem. Three performance parameters; average speed, average waiting time of vehicles and the average number of stopped vehicles are recorded and studied for different traffic densities and road topologies. The results have shown that for various initial distributions of vehicles, the ACO‐strategy obtains higher average speeds, smaller average waiting times and number of stopped vehicles than the non‐ACO‐strategy. This observation holds for all experiments with different traffic densities and different road network topologies.
Exploring walking gait features for the automated recognition of distracted pedestrians
Authors: Zaki Mohamed H. , Sayed Tarek
Published: July 2015

The current study examines the possibility of automatically detecting distracted pedestrians on crosswalks using their gait parameters. The methodology utilises recent findings in health science concerning the relationship between walking gait behaviour and cognitive abilities. Walking speed and gait variability are shown to be affected by the complexity of tasks (e.g. texting) that are performed during walking. Experiments are performed on a video data set from Surrey, British Columbia. The analysis relies on automated video‐based data collection using computer vision. A sensitivity analysis is carried out to assess the quality of the selected features in improving the accuracy of the classification. Classification results show that the proposed approach is promising with around 80% correct detection rate. This research can benefit applications in several transportation related fields such as pedestrian facility planning, pedestrian simulation models as well as road safety programmes and legislative studies.
Surface mechanics design by cavitation peening
Authors: Soyama Hitoshi
Published: July 2015

Although impacts at cavitation bubble collapses cause severe damage in hydraulic machineries, the cavitation impacts can be utilised for surface mechanics design such as introduction of compressive residual stress and/or improvement of fatigue strength. The peening method using the cavitation impacts was called as cavitation peening. In order to reveal the peening intensity of hydrodynamic cavitation and laser cavitation, the arc height of Almen strip and duralumin plate were measured. In the case of hydrodynamic cavitation, cavitation was generated by injecting a high speed water jet into water with a pressurised chamber and an open chamber, and the cavitating jet in air was also examined. The laser cavitation was produced by a pulse laser, and a high speed observation using a high speed video camera was carried out to clarify laser abrasion and laser cavitation with detecting noise by a hydrophone. It was concluded that the peening intensity by using the cavitating jet in water with the pressurized chamber was most aggressive, and the impact induced by the laser cavitation was larger than that of the laser abrasion at the present condition.
The effect of laser shock peening on hardness and microstructure in a welded marine steel
Authors: Ahmad Bilal , Fitzpatrick Michael E.
Published: July 2015

Residual stress is generally considered as the main criterion in laser shock peening for enhancement of fatigue life. However, changes in material hardness, microstructure and surface roughness can also affect component performance. These three aspects are investigated in this paper for welded marine steel samples subjected to laser peening. After laser peening an increase in hardness was seen across the weld and parent metal, with the local hardness dependent upon the initial hardness of the region before peening. The increase was relatively higher for the weld metal which had lower initial hardness. The local surface displacement profiles reflected the number of laser peening layers applied, and the peening also affected the distortion of the specimen after welding.
Head Enlargement in Infants Requiring Neurosurgical Care
Authors: Mittra Sangh , Ahmed Intezar , Kumar Raj , Arora Rajnish
Published: July 2015

Head enlargement (macrocephaly) is not an uncommon neurosurgical condition in infants presenting to outpatient department and emergency departments of neurosurgery/gynecology/pediatrics. We conducted a prospective and retrospective study of head enlargement in infants requiring neurosurgical care, to establish etiology, imaging findings, clinical profile, and outcome, with emphasis on management. Over a period of 24 months, 65 cases presented with head enlargement.

All had a history of cranial expansion from neonatal period. Of 65 patients, 30 could match the inclusion criteria and were selected for this study. Age group ranged from 151 to 180 days, consisted maximum numbers (n = 10; 33.3%) of cases; of 30 23 (76.7%) patients were males. Of 30, 21 (70%) patients were diagnosed to have hydrocephalus, 4 (13.3%) had Dandy–Walker malformation, 2 (6.7%) had subdural effusion, and 3 cases (10%) had other causes as primary diagnoses. All were offered standard treatment as described in literature according to their clinical conditions and stage of diseases which included shunts (ventriculoperitoneal—unilateral, biventricular, and cystoventriculoperitonal), Ommaya placement, craniotomy, burr holes, and conservative. Four shunts required revision during follow-up period. The postoperative follow-up period ranged from 1 to 24 months. One child with the diagnosis of intracranial tumor died in postoperative period that is 1 month after the surgery due to disease-related morbidities. Thus, there are various causes of head enlargement in neonates where neurosurgical intervention may be required, the most common being the hydrocephalus, Dandy–Walker malformation followed by subdural effusion. The treatment depends on the diagnosis. Benign conditions such as subdural effusion do not require surgical intervention usually.
Spontaneous emergence of autocatalytic information-coding polymers
Authors: Tkachenko Alexei V. , Maslov Sergei
Published: July 2015

Self-replicating systems based on information-coding polymers are of crucial importance in biology. They also recently emerged as a paradigm in material design on nano- and micro-scales. We present a general theoretical and numerical analysis of the problem of spontaneous emergence of autocatalysis for heteropolymers capable of template-assisted ligation driven by cyclic changes in the environment. Our central result is the existence of the first order transition between the regime dominated by free monomers and that with a self-sustaining population of sufficiently long chains. We provide a simple, mathematically tractable model supported by numerical simulations, which predicts the distribution of chain lengths and the onset of autocatalysis in terms of the overall monomer concentration and two fundamental rate constants. Another key result of our study is the emergence of the kinetically limited optimal overlap length between a template and each of its two substrates. The template-assisted ligation allows for heritable transmission of the information encoded in chain sequences thus opening up the possibility of long-term memory and evolvability in such systems.
Refined eigenvalue bounds on the Dirichlet fractional Laplacian
Authors: Yıldırım Yolcu Selma , Yolcu Türkay
Published: July 2015

The purpose of this article is to establish new lower bounds for the sums of powers of eigenvalues of the Dirichlet fractional Laplacian operator (−Δ)α/2|Ω restricted to a bounded domain Ω ⊂ ℝd with d = 2, 1 ≤ α ≤ 2 and d ≥ 3, 0 < α ≤ 2. Our main result yields a sharper lower bound, in the sense of Weyl asymptotics, for the Berezin-Li-Yau type inequality improving the previous result [S. Yıldırım Yolcu and T. Yolcu, Discrete Contin. Dyn. Syst. 35(5), 2209–2225 (2015)]. Furthermore, we give a result improving the bounds for analogous elliptic operators [Y.-C. Kim, e-print arXiv:1406.5407].
Defining chaos
Authors: Hunt Brian R. , Ott Edward
Published: July 2015

In this paper, we propose, discuss, and illustrate a computationally feasible definition of chaos which can be applied very generally to situations that are commonly encountered, including attractors, repellers, and non-periodically forced systems. This definition is based on an entropy-like quantity, which we call “expansion entropy,” and we define chaos as occurring when this quantity is positive. We relate and compare expansion entropy to the well-known concept of topological entropy to which it is equivalent under appropriate conditions. We also present example illustrations, discuss computational implementations, and point out issues arising from attempts at giving definitions of chaos that are not entropy-based.
Noise analysis of genome-scale protein synthesis using a discrete computational model of translation
Authors: Racle Julien , Stefaniuk Adam Jan , Hatzimanikatis Vassily
Published: July 2015

Noise in genetic networks has been the subject of extensive experimental and computational studies. However, very few of these studies have considered noise properties using mechanistic models that account for the discrete movement of ribosomes and RNA polymerases along their corresponding templates (messenger RNA (mRNA) and DNA). The large size of these systems, which scales with the number of genes, mRNA copies, codons per mRNA, and ribosomes, is responsible for some of the challenges. Additionally, one should be able to describe the dynamics of ribosome exchange between the free ribosome pool and those bound to mRNAs, as well as how mRNA species compete for ribosomes. We developed an efficient algorithm for stochastic simulations that addresses these issues and used it to study the contribution and trade-offs of noise to translation properties (rates, time delays, and rate-limiting steps). The algorithm scales linearly with the number of mRNA copies, which allowed us to study the importance of genome-scale competition between mRNAs for the same ribosomes. We determined that noise is minimized under conditions maximizing the specific synthesis rate. Moreover, sensitivity analysis of the stochastic system revealed the importance of the elongation rate in the resultant noise, whereas the translation initiation rate constant was more closely related to the average protein synthesis rate. We observed significant differences between our results and the noise properties of the most commonly used translation models. Overall, our studies demonstrate that the use of full mechanistic models is essential for the study of noise in translation and transcription.
Strongly coupled interaction between a ridge of fluid and an inviscid airflow
Authors: Paterson C. , Wilson S. K. , Duffy B. R.
Published: July 2015

The behaviour of a steady thin sessile or pendent ridge of fluid on an inclined planar substrate which is strongly coupled to the external pressure gradient arising from an inviscid airflow parallel to the substrate far from the ridge is described. When the substrate is nearly horizontal, a very wide ridge can be supported against gravity by capillary and/or external pressure forces; otherwise, only a narrower (but still wide) ridge can be supported. Classical thin-aerofoil theory is adapted to obtain the governing singular integro-differential equation for the profile of the ridge in each case. Attention is focused mainly on the case of a very wide sessile ridge. The effect of strengthening the airflow is to push a pinned ridge down near to its edges and to pull it up near to its middle. At a critical airflow strength, the upslope contact angle reaches the receding contact angle at which the upslope contact line de-pins, and continuing to increase the airflow strength beyond this critical value results in the de-pinned ridge becoming narrower, thicker, and closer to being symmetric in the limit of a strong airflow. The effect of tilting the substrate is to skew a pinned ridge in the downslope direction. Depending on the values of the advancing and receding contact angles, the ridge may first de-pin at either the upslope or the downslope contact line but, in general, eventually both contact lines de-pin. The special cases in which only one of the contact lines de-pins are also considered. It is also shown that the behaviour of a very wide pendent ridge is qualitatively similar to that of a very wide sessile ridge, while the important qualitative difference between the behaviour of a very wide ridge and a narrower ridge is that, in general, for the latter one or both of the contact lines may never de-pin.
Theoretically informed Monte Carlo simulation of liquid crystals by sampling of alignment-tensor fields
Authors: Armas-Pérez Julio C. , Londono-Hurtado Alejandro , Guzmán Orlando , Hernández-Ortiz Juan P. , de Pablo Juan J.
Published: July 2015

A theoretically informed coarse-grained Monte Carlo method is proposed for studying liquid crystals. The free energy functional of the system is described in the framework of the Landau-de Gennes formalism. The alignment field and its gradients are approximated by finite differences, and the free energy is minimized through a stochastic sampling technique. The validity of the proposed method is established by comparing the results of the proposed approach to those of traditional free energy minimization techniques. Its usefulness is illustrated in the context of three systems, namely, a nematic liquid crystal confined in a slit channel, a nematic liquid crystal droplet, and a chiral liquid crystal in the bulk. It is found that for systems that exhibit multiple metastable morphologies, the proposed Monte Carlo method is generally able to identify lower free energy states that are often missed by traditional approaches. Importantly, the Monte Carlo method identifies such states from random initial configurations, thereby obviating the need for educated initial guesses that can be difficult to formulate.
Influence of an external force field on the dynamics of a free core and fluid in a rotating spherical cavity
Authors: Kozlov V. G. , Kozlov N. V. , Subbotin S. V.
Published: July 2015

This research involves experimental studies of the dynamics of a free spherical core and fluid motion in a spherical cavity rotating around the horizontal axis. The gravity field causes circular oscillations of the core in the reference frame of the cavity creating an averaged force in the Stokes boundary layer which makes the core rotate relative to the cavity (vibrational hydrodynamic top). The core rotates in the direction opposite to that of the cavity (lagging differential rotation). The research shows that the differential rotation intensity is determined by the ratio between the gravitational and centrifugal acceleration, as well as the ratio of the core size to the thickness of the Stokes layer. Various regimes of the fluid flow have been studied. The shape of subcritical flow is a circular-section column extended along the geometric continuation of the sphere. Increasing the differential rotation rate of the core results in various independent modes of instability of the column. One of such modes involves development of an azimuthal wave on the column boundary. The second mode is a system of two-dimensional vortices extended along the axis and rotating inside the column. It has been discovered that the development of supercritical structures causes changes in the differential rotation rate of the core.