bluuebunny/crossref_metadata_2025 huggingface dataset:
CPW-fed printed UWB antenna with open-loop inverted triangular-shaped slot for WLAN band filtering
Authors: Shokri Majid , Rafii Vahid , Karamzadeh Saeid , Amiri Zhaleh , Virdee Bal
Published: January 2015

A compact CPW-fed printed monopole slot antenna is presented for ultra-wideband (UWB) applications. The antenna comprises of a dome-shaped radiating element in which embedded is an open-loop inverted triangular-shaped slot (TSS). The antenna is fed through a coplanar waveguide to provide an ultra-wide impedance bandwidth of 8.95 GHz (2.58–11.53 GHz) which corresponds to a bandwidth ratio of 1:4.46 for VSWR <2. The antenna possesses a notch band functionality to filter out interfering C-band signals like wireless local-area network (WLAN). The notch band frequency is determined by physical parameters defining the TSS that allows fine control of the notch's location. The proposed antenna also possesses a flat gain response expect at the notched band and occupies a relatively small volume of 25 × 25 × 0.8 mm3 for ease of system integration.
The Influence of Traffic Signal Solutions on Self-Reported Road-Crossing Behavior
Authors: Di Stasi Leandro L. , Megías Alberto , Cándido Antonio , Maldonado Antonio , Catena Andrés
Published: January 2015

Injury to pedestrians is a major safety hazard in many countries. Since the beginning of the last century, modern cities have been designed around the use of motor vehicles despite the unfavourable interactions between the vehicles and pedestrians. This push towards urbanization resulted in a substantial number of crashes and fatalities involving pedestrians every day, all over the world. Thus, improving the design of urban cities and townships is a pressing issue for modern society. The study presented here provides a characterization of pedestrian safety problems, with the emphasis on signalized crosswalks (i.e. traffic signal) design solutions. We tested the impact of seven different traffic light configurations (steady [green, yellow, and red], flashing [green, yellow, and red], and light off) on pedestrian self-reported road-crossing behavior, using a 11-point scale -ranging from 0 (“I never cross in this situation”) to 10 (“I always cross in this situation”). Results showed that mandatory solutions (steady green vs. steady red) are the best solutions to avoid unsafe pedestrian behaviors while crossing controlled intersections (frequency of crossing: Mgreen = 9.4 ± 1 vs. Mred = 2.6 ± 2). These findings offer important guidelines for the design of future traffic signals for encouraging a pedestrian/transit-friendly environment.
Sichtung von Bewerbungsunterlagen
Authors: Kanning Uwe Peter , Woike Janine
Published: January 2015

In einer Studie mit 1053 Probanden wird die Frage untersucht, inwieweit soziales Engagement ein sinnvoller Indikator zur Einschätzung der sozialen Kompetenzen von Bewerbern darstellt. Es werden 17 soziale Kompetenzen berücksichtigt, die sich zu vier Faktoren zweiter Ordnung gruppieren. Sozial engagierte Personen weisen höhere Standardwerte in allen Kompetenzen aus den Bereichen der sozialen Orientierung sowie der Offensivität auf. Im Bereich der Selbststeuerung gilt dies nur einmal, für den Bereich der Reflexibilität in keinem Fall. Der lineare Zusammenhang zwischen der Intensität des Engagements und der Ausprägung der Kompetenzen ergibt nach der Herauspartialisierung demographischer Variablen (Alter, Geschlecht, Bildung) positive Zusammenhänge insbesondere in den Kompetenzbereichen der sozialen Orientierung sowie der Offensivität. Die Varianzaufklärung fällt allerdings mit 0.36 – 6.25 % eher gering aus. Die Nutzung von Informationen über das soziale Engagement der Bewerber zum Zwecke der Personalauswahl wird diskutiert. Zudem wird ein Ausblick auf die weitere Forschung gegeben.
Beyond receptors and signaling: epigenetic factors in the regulation of innate immunity
Authors: Mehta Stuti , Jeffrey Kate L
Published: January 2015

The interaction of innate immune cells with pathogens leads to changes in gene expression that elicit our body's first line of defense against infection. Although signaling pathways and transcription factors have a central role, it is becoming increasingly clear that epigenetic factors, in the form of DNA or histone modifications, as well as noncoding RNAs, are critical for generating the necessary cell lineage as well as context‐specific gene expression in diverse innate immune cell types. Much of the epigenetic landscape is set during cellular differentiation; however, pathogens and other environmental triggers also induce changes in histone modifications that can either promote tolerance or ‘train’ innate immune cells for a more robust antigen‐independent secondary response. Here we review the important contribution of epigenetic factors to the initiation, maintenance and training of innate immune responses. In addition, we explore how pathogens have hijacked these mechanisms for their benefit and the potential of small molecules targeting chromatin machinery as a way to boost or subdue the innate immune response in disease.
Flow damping due to stochastization of the magnetic field
Authors: Ida K. , Yoshinuma M. , Tsuchiya H. , Kobayashi T. , Suzuki C. , Yokoyama M. , Shimizu A. , Nagaoka K. , Inagaki S. , Itoh K. ,   the LHD Experiment Group, Akiyama T. , Emoto M. , Evans T. , Dinklage A. , Du X. , Fujii K. , Goto M. , Goto T. , Hasuo M. , Hidalgo C. , Ichiguchi K. , Ishizawa A. , Jakubowski M. , Kamiya K. , Kasahara H. , Kawamura G. , Kato D. , Kobayashi M. , Morita S. , Mukai K. , Murakami I. , Murakami S. , Narushima Y. , Nunami M. , Ohdach S. , Ohno N. , Osakabe M. , Pablant N. , Sakakibara S. , Seki T. , Shimozuma T. , Shoji M. , Sudo S. , Tanaka K. , Tokuzawa T. , Todo Y. , Wang H. , Yamada H. , Takeiri Y. , Mutoh T. , Imagawa S. , Mito T. , Nagayama Y. , Watanabe K. Y. , Ashikawa N. , Chikaraishi H. , Ejiri A. , Furukawa M. , Fujita T. , Hamaguchi S. , Igami H. , Isobe M. , Masuzaki S. , Morisaki T. , Motojima G. , Nagasaki K. , Nakano H. , Oya Y. , Suzuki Y. , Sakamoto R. , Sakamoto M. , Sanpei A. , Takahashi H. , Tokitani M. , Ueda Y. , Yoshimura Y. , Yamamoto S. , Nishimura K. , Sugama H. , Yamamoto T. , Idei H. , Isayama A. , Kitajima S. , Masamune S. , Shinohara K. , Bawankar P. S. , Bernard E. , von Berkel M. , Funaba H. , Huang X. L. , Ii T. , Ido T. , Ikeda K. , Kamio S. , Kumazawa R. , Moon C. , Muto S. , Miyazawa J. , Ming T. , Nakamura Y. , Nishimura S. , Ogawa K. , Ozaki T. , Oishi T. , Ohno M. , Pandya S. , Seki R. , Sano R. , Saito K. , Sakaue H. , Takemura Y. , Tsumori K. , Tamura N. , Tanaka H. , Toi K. , Wieland B. , Yamada I. , Yasuhara R. , Zhang H. , Kaneko O. , Komori A.
Published: January 2015

The driving and damping mechanism of plasma flow is an important issue because flow shear has a significant impact on turbulence in a plasma, which determines the transport in the magnetized plasma. Here we report clear evidence of the flow damping due to stochastization of the magnetic field. Abrupt damping of the toroidal flow associated with a transition from a nested magnetic flux surface to a stochastic magnetic field is observed when the magnetic shear at the rational surface decreases to 0.5 in the large helical device. This flow damping and resulting profile flattening are much stronger than expected from the Rechester–Rosenbluth model. The toroidal flow shear shows a linear decay, while the ion temperature gradient shows an exponential decay. This observation suggests that the flow damping is due to the change in the non-diffusive term of momentum transport.
Visualizing cellular imaging data using PhenoPlot
Authors: Sailem Heba Z. , Sero Julia E. , Bakal Chris
Published: January 2015

Visualization is essential for data interpretation, hypothesis formulation and communication of results. However, there is a paucity of visualization methods for image-derived data sets generated by high-content analysis in which complex cellular phenotypes are described as high-dimensional vectors of features. Here we present a visualization tool, PhenoPlot, which represents quantitative high-content imaging data as easily interpretable glyphs, and we illustrate how PhenoPlot can be used to improve the exploration and interpretation of complex breast cancer cell phenotypes.
Unravelling the physics of size-dependent dislocation-mediated plasticity
Authors: El-Awady Jaafar A.
Published: January 2015

Size-affected dislocation-mediated plasticity is important in a wide range of materials and technologies. Here we develop a generalized size-dependent dislocation-based model that predicts strength as a function of crystal/grain size and the dislocation density. Three-dimensional (3D) discrete dislocation dynamics (DDD) simulations reveal the existence of a well-defined relationship between strength and dislocation microstructure at all length scales for both single crystals and polycrystalline materials. The results predict a transition from dislocation-source strengthening to forest-dominated strengthening at a size-dependent critical dislocation density. It is also shown that the Hall–Petch relationship can be physically interpreted by coupling with an appropriate kinetic equation of the evolution of the dislocation density in polycrystals. The model is shown to be in remarkable agreement with experiments. This work presents a micro-mechanistic framework to predict and interpret strength size-scale effects, and provides an avenue towards performing multiscale simulations without ad hoc assumptions.
PIP2-dependent coupling is prominent in Kv7.1 due to weakened interactions between S4-S5 and S6
Authors: Kasimova Marina A. , Zaydman Mark A. , Cui Jianmin , Tarek Mounir
Published: January 2015

Among critical aspects of voltage-gated potassium (Kv) channels' functioning is the effective communication between their two composing domains, the voltage sensor (VSD) and the pore. This communication, called coupling, might be transmitted directly through interactions between these domains and, as recently proposed, indirectly through interactions with phosphatidylinositol-4,5-bisphosphate (PIP2), a minor lipid of the inner plasma membrane leaflet. Here, we show how the two components of coupling, mediated by protein-protein or protein-lipid interactions, both contribute in the Kv7.1 functioning. On the one hand, using molecular dynamics simulations, we identified a Kv7.1 PIP2binding site that involves residues playing a key role in PIP2-dependent coupling. On the other hand, combined theoretical and experimental approaches have shown that the direct interaction between the segments of the VSD (S4–S5) and the pore (S6) is weakened by electrostatic repulsion. Finally, we conclude that due to weakened protein-protein interactions, the PIP2-dependent coupling is especially prominent in Kv7.1.
MicroRNA-574-3p, identified by microRNA library-based functional screening, modulates tamoxifen response in breast cancer
Authors: Ujihira T. , Ikeda K. , Suzuki T. , Yamaga R. , Sato W. , Horie-Inoue K. , Shigekawa T. , Osaki A. , Saeki T. , Okamoto K. , Takeda S. , Inoue S.
Published: January 2015

Most primary breast cancers express estrogen receptor α and can be treated via endocrine therapy using anti-estrogens such as tamoxifen; however, acquired endocrine resistance is a critical issue. To identify tamoxifen response-related microRNAs (miRNAs) in breast cancer, MCF-7 cells infected with a lentiviral miRNA library were treated with 4-hydroxytamoxifen (OHT) or vehicle for 4 weeks and the amounts of individual miRNA precursors that had integrated into the genome were evaluated by microarray. Compared to the vehicle-treated cells, 5 ‘dropout’ miRNAs, which were downregulated in OHT-treated cells and 6 ‘retained’ miRNAs, which were upregulated in OHT-treated cells, were identified. Of the dropout miRNAs, we found that miR-574-3p expression was downregulated in clinical breast cancer tissues as compared with their paired adjacent tissues. In addition, anti-miR-574-3p reversed tamoxifen-mediated suppression of MCF-7 cell growth. Clathrin heavy chain (CLTC) was identified as a miR-574-3p target gene by in silico algorithms and luciferase reporter assay using the 3′ untranslated region of CLTC mRNA. Interestingly, loss and gain of miR-574-3p function in MCF-7 cells causes CLTC to be upregulated and downregulated, respectively. These results suggest that functional screening mediated by miRNA libraries can provide new insights into the genes essential for tamoxifen response in breast cancer.
Following the dynamics of matter with femtosecond precision using the X-ray streaking method
Authors: David C. , Karvinen P. , Sikorski M. , Song S. , Vartiainen I. , Milne C. J. , Mozzanica A. , Kayser Y. , Diaz A. , Mohacsi I. , Carini G. A. , Herrmann S. , Färm E. , Ritala M. , Fritz D. M. , Robert A.
Published: January 2015

X-ray Free Electron Lasers (FELs) can produce extremely intense and very short pulses, down to below 10 femtoseconds (fs). Among the key applications are ultrafast time-resolved studies of dynamics of matter by observing responses to fast excitation pulses in a pump-probe manner. Detectors with sufficient time resolution for observing these processes are not available. Therefore, such experiments typically measure a sample's full dynamics by repeating multiple pump-probe cycles at different delay times. This conventional method assumes that the sample returns to an identical or very similar state after each cycle. Here we describe a novel approach that can provide a time trace of responses following a single excitation pulse, jitter-free, with fs timing precision. We demonstrate, in an X-ray diffraction experiment, how it can be applied to the investigation of ultrafast irreversible processes.
A growth model for directed complex networks with power-law shape in the out-degree distribution
Authors: Esquivel-Gómez J. , Stevens-Navarro E. , Pineda-Rico U. , Acosta-Elias J.
Published: January 2015

Many growth models have been published to model the behavior of real complex networks. These models are able to reproduce several of the topological properties of such networks. However, in most of these growth models, the number of outgoing links (i.e., out-degree) of nodes added to the network is constant, that is all nodes in the network are born with the same number of outgoing links. In other models, the resultant out-degree distribution decays as a poisson or an exponential distribution. However, it has been found that in real complex networks, the out-degree distribution decays as a power-law. In order to obtain out-degree distribution with power-law behavior some models have been proposed. This work introduces a new model that allows to obtain out-degree distributions that decay as a power-law with an exponent in the range from 0 to 1.
An electrochemical sensing method for the determination of levodopa using a poly(4-methyl-ortho-phenylenediamine)/MWNT modified GC electrode
Authors: Kamyabi Mohammad Ali , Rahmanian Najmeh
Published: January 2015

DPVs of 0.08 mmol L−1l-Dopa and 1.2 mmol L−1 AA in PBS pH 7 at (A) before and (B) after modification of a GCE with poly (4-MoPD)/MWNTs in PBS pH 7, scan rate: 100 mV s−1.
Determination of unconjugated non-steroidal anti-inflammatory drugs in biological fluids using air-assisted liquid–liquid microextraction combined with back extraction followed by high performance liquid chromatography
Authors: Farajzadeh Mir Ali , Reza Mohammad , Mogaddam Afshar , Bamorowat Mahdi
Published: January 2015

AALLME-HPLC-VWD method for determination of naproxen, diclofenac, and ibuprofen.
Exploring the electrical wiring of screen-printed configurations utilised in electroanalysis
Authors: Galdino Flavia E. , Foster Christopher W. , Bonacin Juliano A. , Banks Craig E.
Published: January 2015

A load of croc: this paper explores the importance of a stable electrical connection when utilising screen-printed electrodes to the potentiostat. Electrochemical results that do not have a stable connection may lack reproducibility and can be disregarded as another failed attempt as they do not portray ideal voltammetric data.
A sensitive electrochemical method for the determination of 5-hydroxytryptophan in rats' brain tissue based on a carbon nanosheets-modified electrode
Authors: Chen Yahong , Li Gongke , Hu Yufei
Published: January 2015

In this paper, a novel electrochemical method is proposed for the determination of 5-hydroxytryptophan (5-HTP) based on a carbon nanosheets (CNSs)-modified electrode.
Highly selective visible light-induced Ti–O bond splitting in an ansa-titanocene dihydroxido complex
Authors: Godemann Christian , Dura Laura , Hollmann Dirk , Grabow Kathleen , Bentrup Ursula , Jiao Haijun , Schulz Axel , Brückner Angelika , Beweries Torsten
Published: January 2015

Visible light irradiation of an ansa-titanocene(iv) dihydroxido complex Me4Si2(C5Me4)2Ti(OH)2 induces highly selective Ti–O bond activation to exclusively yield Ti(iii) complexes.
Kinetics of stabilised Criegee intermediates derived from alkene ozonolysis: reactions with SO2, H2O and decomposition under boundary layer conditions
Authors: Newland Mike J. , Rickard Andrew R. , Alam Mohammed S. , Vereecken Luc , Muñoz Amalia , Ródenas Milagros , Bloss William J.
Published: January 2015

The removal of SO2in the presence ofcis-but-2-ene and ozone exhibits a strong dependence on the water vapour concentration.
Stochastic methods for aerosol chemistry: a compact molecular description of functionalization and fragmentation in the heterogeneous oxidation of squalane aerosol by OH radicals
Authors: Wiegel A. A. , Wilson K. R. , Hinsberg W. D. , Houle F. A.
Published: January 2015

A compact, experimentally validated model of organic aerosol oxidation enables the ageing process to be connected to specific chemical reactions.
Pressure-induced phase transition of BiOF: novel two-dimensional layered structures
Authors: Zhou Dawei , Pu Chunying , He Chaozheng , Zhang Feiwu , Lu Cheng , Bao Gang
Published: January 2015

The structure evolutions of BiOF under pressure are directly illustrated in our work by means of first principle calculations.
Flexible thermoelectric fabrics based on self-assembled tellurium nanorods with a large power factor
Authors: Dun Chaochao , Hewitt Corey A. , Huang Huihui , Montgomery David S. , Xu Junwei , Carroll David L.
Published: January 2015

High performance thermoelectric fabrics with a room temperature power factor of 45.8 μW m−1 K−2 were fabricated based on self-assembled Te nanorods.
Properties and photochemistry of valence-induced-Ti3+enriched (Nb,N)-codoped anatase TiO2semiconductors
Authors: Folli Andrea , Bloh Jonathan Z. , Lecaplain Anaïs , Walker Rebecca , Macphee Donald E.
Published: January 2015

Ti3+enriched (Nb,N) codoped TiO2: insights into the mechanisms responsible for enhanced conductivity and visible light photocatalytic activity.
The shape of ibuprofen in the gas phase
Authors: Betz Thomas , Zinn Sabrina , Schnell Melanie
Published: January 2015

Broadband rotational spectroscopy reveals a striking conformational flexibility of ibuprofen – the famous painkiller – in the gas phase.
A single probe to sense Al(iii) colorimetrically and Cd(ii) by turn-on fluorescence in physiological conditions and live cells, corroborated by X-ray crystallographic and theoretical studies
Authors: Kar Chirantan , Samanta Soham , Goswami Sudeep , Ramesh Aiyagari , Das Gopal
Published: January 2015

Selective recognition of Al3+and Cd2+by UV-Vis and fluorescence based techniques using a cinnamaldehyde functionalized conjugated ligand, and its applications in paper strip and live cell imaging.
Chemical, radiochemical and biological studies of new gallium(iii) complexes with hexadentate chelators
Authors: Silva Francisco , Campello Maria Paula C. , Gano Lurdes , Fernandes Célia , Santos Isabel C. , Santos Isabel , Ascenso José R. , João Ferreira M. , Paulo António
Published: January 2015

New Ga3+complexes with hexadentate chelators were prepared using natural gallium and radiogallium, and showed some favorable features for radiopharmaceutical research.
Evaluation of the diffusive gradients in thin films technique using a mixed binding gel for measuring iron, phosphorus and arsenic in the environment
Authors: Sun Qin , Zhang Liping , Ding Shiming , Li Chao , Yang Jinyan , Chen Jing , Wang Peifang
Published: January 2015

Simultaneous measurements of dissolved iron (Fe), phosphorus (P), and arsenic (As) were made using the diffusive gradients in thin films technique equipped with a mixed binding gel impregnated with zirconium oxide and Chelex-100 (ZrO–Chelex DGT).
Nucleation rate analysis of methane hydrate from molecular dynamics simulations
Authors: Yuhara Daisuke , Barnes Brian C. , Suh Donguk , Knott Brandon C. , Beckham Gregg T. , Yasuoka Kenji , Wu David T. , Sum Amadeu K.
Published: January 2015

Clathrate hydrates are solid crystalline structures most commonly formed from solutions that have nucleated to form a mixed solid composed of water and gas. Understanding the mechanism of clathrate hydrate nucleation is essential to grasp the fundamental chemistry of these complex structures and their applications. Molecular dynamics (MD) simulation is an ideal method to study nucleation at the molecular level because the size of the critical nucleus and formation rate occur on the nano scale. Various analysis methods for nucleation have been developed through MD to analyze nucleation. In particular, the mean first-passage time (MFPT) and survival probability (SP) methods have proven to be effective in procuring the nucleation rate and critical nucleus size for monatomic systems. This study assesses the MFPT and SP methods, previously used for monatomic systems, when applied to analyzing clathrate hydrate nucleation. Because clathrate hydrate nucleation is relatively difficult to observe in MD simulations (due to its high free energy barrier), these methods have yet to be applied to clathrate hydrate systems. In this study, we have analyzed the nucleation rate and critical nucleus size of methane hydrate using MFPT and SP methods from data generated by MD simulations at 255 K and 50 MPa. MFPT was modified for clathrate hydrate from the original version by adding the maximum likelihood estimate and growth effect term. The nucleation rates calculated by MFPT and SP methods are within 5%, and the critical nucleus size estimated by the MFPT method was 50% higher, than values obtained through other more rigorous but computationally expensive estimates. These methods can also be extended to the analysis of other clathrate hydrates.
Design and characterization of a single channel two-liquid capacitor and its application to hyperelastic strain sensing
Authors: Liu Shanliangzi , Sun Xiaoda , Hildreth Owen J. , Rykaczewski Konrad
Published: January 2015

We show that single channel capacitive strain sensor consisting of a high dielectric constant liquid sandwiched in-between two liquid metal electrodes can have 25 times higher capacitance per sensor's base area when compared to current two-channel liquid metal stain sensors.
A MALDI-Mass Spectrometry Imaging method applicable to different formalin-fixed paraffin-embedded human tissues
Authors: De Sio Gabriele , Smith Andrew James , Galli Manuel , Garancini Mattia , Chinello Clizia , Bono Francesca , Pagni Fabio , Magni Fulvio
Published: January 2015

The paper shows a new method for the application of Matrix Assisted Laser Desorption/Ionisation (MALDI) Mass Spectrometry Imaging (MSI) technology on formalin-fixed paraffin-embedded (FFPE) tissue samples.
Cytotoxic potential of dispirooxindolo/acenaphthoquino andrographolide derivatives against MCF-7 cell line
Authors: Chakraborty Debanjana , Maity Arindam , Jain Chetan K. , Hazra Abhijit , Bharitkar Yogesh P. , Jha Tarun , Majumder Hemanta K. , Roychoudhury Susanta , Mondal Nirup B.
Published: January 2015

Dispiro andrographolides induce a caspase-dependent apoptotic cell death pathway in breast cancer (MCF-7) cells.
Advancements in all-solid-state hybrid solar cells based on organometal halide perovskites
Authors: Shi Shaowei , Li Yongfang , Li Xiaoyu , Wang Haiqiao
Published: January 2015

Over the past several years, organic–inorganic hybrid perovskites have gained considerable research attention due to their direct band gap, large absorption coefficient, ambipolar diffusion and long carrier diffusion length, and have revolutionized the prospects of emerging photovoltaic technologies, with the highest power conversion efficiency of over 19% achieved under laboratory conditions.
The effect of 4-halogenobenzoate ligands on luminescent and structural properties of lanthanide complexes: experimental and theoretical approaches
Authors: Monteiro Jorge H. S. K. , de Bettencourt-Dias Ana , Mazali Italo O. , Sigoli Fernando A.
Published: January 2015

Luminescence of lanthanides complexes; Influence of 4-halogenobenzoate ligands, Molecular and crystal structures; Ligand-metal charge transfer; Covalence degree of Eu-Ligands; Energy transfer rates.
Monoatomic-thick graphitic carbon nitride dots on graphene sheets as an efficient catalyst in the oxygen reduction reaction
Authors: Wang Xiaopeng , Wang Lixia , Zhao Fei , Hu Chuangang , Zhao Yang , Zhang Zhipan , Chen Shilu , Shi Gaoquan , Qu Liangti
Published: January 2015

Monoatomic-thick graphitic carbon nitride dots on graphene sheets rival the electrocatalytic activity of the commercial Pt/C catalyst in the oxygen reduction reaction.
Near-field asymmetries in plasmonic resonators
Authors: Aksyuk Vladimir , Lahiri Basudev , Holland Glenn , Centrone Andrea
Published: January 2015

PTIR reveals symmetry-breaking near-field SEIRA enhancements caused by the interference between electric and magnetic excitations of the resonators’ dark-mode.
Conductance measurements of individual polypyrrole nanobelts
Authors: Hentschel C. , Jiang L. , Ebeling D. , Zhang J. C. , Chen X. D. , Chi L. F.
Published: January 2015

We present here a study on the electrical conduction properties of individual polypyrrole nanobelts by using conductive atomic force microscopy and discuss a general effect while probing soft materials.
Structural and electronic properties of an ordered grain boundary formed by separated (1,0) dislocations in graphene
Authors: Ma Chuanxu , Sun Haifeng , Du Hongjian , Wang Jufeng , Zhao Aidi , Li Qunxiang , Wang Bing , Hou J. G.
Published: January 2015

We present an investigation of the structural and electronic properties of a linear periodic chain of pentagon-heptagon pairs in single-layer graphene/SiO2 using scanning tunneling microscopy/spectroscopy, joint with density functional theory calculations.
Playing the notes of DNA with light: extremely high frequency nanomechanical oscillations
Authors: Kotnala Abhay , Wheaton Skyler , Gordon Reuven
Published: January 2015

A double nanohole optical tweezer with two trapping lasers beating is used to excite the 10 GHz to 80 GHz vibrational modes of single-stranded DNA fragments.
Luminescent organogels based on triphenylamine functionalized β-diketones and their difluoroboron complexes
Authors: Qian Chong , Liu Mingyang , Hong Guanghui , Xue Pengchong , Gong Peng , Lu Ran
Published: January 2015

New organogelators based on triphenylamine functionalized β-diketones and their difluoroboron complexes were synthesized.
Polymer composites prepared by low-temperature post-irradiation polymerization of C2F4 in the presence of graphene-like material: synthesis and characterization
Authors: Shulga Yury M. , Vasilets Victor N. , Kiryukhin Dmitry P. , Voylov Dmitry N. , Sokolov Alexei P.
Published: January 2015

Study of PTFE–microwave exfoliated graphene oxide (MEGO) composites synthesized using a low temperature post-irradiation polymerization technique. SEM images of MEGO (left) and PTFE–MEGO composite (right).
In situ compatibilisation of alkenyl-terminated polymer blends using cross metathesis
Authors: Descour C. , Macko T. , Schreur-Piet I. , Pepels M. P. F. , Duchateau R.
Published: January 2015

A whiff of diblocks is enough! Straightforward coupling of two vinyl-terminated macromolecules was achieved by cross metathesis (CM) using Grubbs' second-generation catalyst (G2) giving access to a diversity of “self-compatibilised” polymer blends. Solution blends, in the absence of G2, showed clear macrophase separation while metathesized samples no longer did. A small fraction of diblocks only proved to act as an excellent compatibilizer.
Synthesis of novel ion-imprinted polymers by two different RAFT polymerization strategies for the removal of Cs(i) from aqueous solutions
Authors: Meng Xiangguo , Liu Yan , Meng Minjia , Gu Zheyu , Ni Liang , Zhong Guoxing , Liu Fangfang , Hu Zhaoyong , Chen Rui , Yan Yongsheng
Published: January 2015

In this work, two novel Cs(i) ion-imprinted polymers (Cs(i)-IIP1 and Cs(i)-IIP2) have been prepared by surface imprinting technique with different RAFT polymerization strategies based on support matrix of SBA-15.
Catalytic ozonation of 2,4-dichlorophenoxyacetic acid over novel Fe–Ni/AC
Authors: Lü Xianghong , Zhang Qiuyun , Yang Wenqing , Li Xukai , Zeng Lixuan , Li Laisheng
Published: January 2015

Novel Ni–Fe oxides supported on AC can highly improve the degradation and mineralization efficiency of 2,4-D by synergic oxidation.
A novel fabrication of nitrogen-containing carbon nanospheres with high rate capability as electrode materials for supercapacitors
Authors: Peng Hui , Ma Guofu , Sun Kanjun , Mu Jingjing , Zhou Xiaozhong , Lei Ziqiang
Published: January 2015

Nitrogen-containing polyaniline-based carbon nanospheres (C-PANI) with diameters of about 200 nm are prepared through a direct carbonization method using polyaniline (PANI) nanospheres as carbon precursors at different temperatures.
Thermally accessible triplet state of π-nucleophiles does exist. Evidence from first principles study of ethylene interaction with copper species
Authors: Bondarchuk Sergey V. , Minaev Boris F.
Published: January 2015

Three different models of ethylene interaction with copper species, namely, the Cu(100) surface, odd-numbered copper clusters C2H4/Cun(wheren= 3, 7, 11, 15, 17, 19, 21, 25 and 27) and atomic copper C2H4/Cu were studied theoretically.
Mechanism of Pb(ii) and methylene blue adsorption onto magnetic carbonate hydroxyapatite/graphene oxide
Authors: Cui Limei , Wang Yaoguang , Hu Lihua , Gao Liang , Du Bin , Wei Qin
Published: January 2015

Magnetic carbonate hydroxyapatite was loaded onto GO sheets to obtain a novel adsorbent for the removal of heavy metals and dyes.
Structural and luminescence properties of red-emitting Cs1−xMgPO4:xEu2+ phosphors for near-UV-pumped light emitting diodes
Authors: Ma Bin , Huang Zhaohui , Fang Minghao , Liu Yangai , Wu Xiaowen
Published: January 2015

The Cs1−xMgPO4:xEu2+ phosphors were successfully synthesized, which show a broad red emission band ranging from 500 to 800 nm.
Decarboxylative acylation of arenes with mandelic acid derivatives via palladium-catalyzed oxidative sp2 C–H activation
Authors: Liu Xia , Yi Ze , Wang Jianhui , Liu Guiyan
Published: January 2015

An efficient approach for the palladium catalyzed decarboxylative cross-coupling of electron-deficient arenes with mandelic acid.
Effect of the replacement of Al–O by Si–N on the properties of Sr6Si25.6Al6.4N41.6O4.4:Eu2+ phosphors for white light-emitting diodes
Authors: Ma Qian , Zhao Chunlei , Xu Huibing , Liu Ronghui , Ye Hongqi , Hu Yunsheng , Liu Yuanhong , Chen Guantong
Published: January 2015

Novel oxynitride Sr-containing SiAlON phosphor was synthesized, intense green emission was found and crystal structure was discussed.
Necessity of moderate metal-support interaction in Ni/Al2O3 for syngas methanation at high temperatures
Authors: Cui Dianmiao , Liu Jiao , Yu Jian , Yue Junrong , Su Fabing , Xu Guangwen
Published: January 2015

Atmospheric syngas methanation conducted at 823 K and 923 K alternatively over Ni/Al2O3 demonstrated that only the catalyst with moderate metal-support interaction has reasonably good and stable activity for syngas methanation at high temperatures.
Fabrication of electromagnetic Fe3O4@polyaniline nanofibers with high aspect ratio
Authors: Ma Yong , Qiao Mingtao , Chen Yanhui , Hou Chunping , Zhang Baoliang , Zhang Qiuyu
Published: January 2015

High aspect ratio Fe3O4@polyaniline nanofibers prepared show better magnetization saturation and conductivity value compared to Fe3O4@polyaniline microspheres.
Rational design of 3D hierarchical foam-like Fe2O3@CuOxmonolith catalysts for selective catalytic reduction of NO with NH3
Authors: Fang Cheng , Shi Liyi , Hu Hang , Zhang Jianping , Zhang Dengsong
Published: January 2015

A high-performance monolith catalyst based on 3D hierarchical foam-like Fe2O3@CuOxwas developed for selective catalytic reduction of NO.
In situ synthesis of MoS2 on a polymer based gold electrode platform and its application in electrochemical biosensing
Authors: Kim Hyeong-U , Kim Hyeyoun , Ahn Chisung , Kulkarni Atul , Jeon Minhwan , Yeom Geun Young , Lee Min-Ho , Kim Taesung
Published: January 2015

Bulk layers of MoS2 were synthesized in situ on a polymer substrate at low temperature for electrochemical biosensing.
Special nanostructure control of ethanol sensing characteristics based on Au@In2O3 sensor with good selectivity and rapid response
Authors: Wang Ying , Lin Ying , Jiang Dingsheng , Li Feng , Li Chao , Zhu Linghui , Wen Shanpeng , Ruan Shengping
Published: January 2015

A Au@In2O3 core–shell nanostructure was prepared via a sol–gel method firstly. The Au@In2O3 sensor showed rapid response and perfect selectivity to ethanol.
An electrochemically polymerized and assembled cyclopalladated bi-thiophene imine for catalyzing coupling reactions: a modern strategy to enhance catalytic activity
Authors: Zou Keke , Liu Hui , Li Tiesheng , Chen Penglei , Liu Minghua , Wu Yangjie
Published: January 2015

The catalytic activity and recyclability of thiophene imine as a catalyst for coupling reactions is enhanced using the LB-ECP-SA method.
MgAl layered double hydroxides with chloride and carbonate ions as interlayer anions for removal of arsenic and fluoride ions in water
Authors: Huang Pei-Pei , Cao Chang-Yan , Wei Fang , Sun Yong-Bin , Song Wei-Guo
Published: January 2015

Flower-like MgAl layered double hydroxides (MgAl-LDHs) with chloride and carbonate ions as interlayer anions showed excellent adsorption capacities for As(v) and F− ions under neutral conditions.
Fabrication of nanostructured and microstructured chitin materials through gelation with suitable dispersion media
Authors: Kadokawa Jun-ichi
Published: January 2015

Regeneration from chitin gels with suitable dispersion media results in the efficient fabrication of nano- and microstructured materials.
In silico de novo design of novel NNRTIs: a bio-molecular modelling approach
Authors: Jain (Pancholi) Nilanjana , Gupta Swagata , Sapre Neelima , Sapre Nitin S.
Published: January 2015

Six novel NNRTIs (DABO) with high efficacy are designed by assessing the interaction potential and structural requirements using chemometric analyses (SVM, BPNN and MLR) on structural descriptors.
Hydration of nitriles to amides by a chitin-supported ruthenium catalyst
Authors: Matsuoka Aki , Isogawa Takahiro , Morioka Yuna , Knappett Benjamin R. , Wheatley Andrew E. H. , Saito Susumu , Naka Hiroshi
Published: January 2015

Chitin-supported ruthenium (Ru/chitin) promotes the hydration of nitriles to carboxamides under aqueous conditions.
Synthesis and physicochemical properties of graphene/ZrO2 composite aerogels
Authors: Guo Dongman , Lu Yun , Zhao Yibo , Zhang Xuetong
Published: January 2015

Graphene/ZrO2 composite aerogels with large BET areas have been synthesized using a sol–gel method together with a supercritical fluid drying process.
Polymer/gold hybrid nanoparticles: from synthesis to cancer theranostic applications
Authors: Wu Xingjie , Gao Yanqin , Dong Chang-Ming
Published: January 2015

This minireview highlights the preparation methods for various polymer/AuNP hybrids and the recent progress on their cancer theranostic applications.
BF3/nano-sawdust as a green, biodegradable and inexpensive catalyst for the synthesis of highly substituted dihydro-2-oxopyrroles
Authors: Mirjalili Bi Bi Fatemeh , Zare Reshquiyea Reza
Published: January 2015

BF3/nano-sawdust was used as a readily available, inexpensive, biodegradable and environmentally benign heterogeneous solid acid catalyst for the one-pot cascade synthesis of highly functionalized dihydro-2-oxypyrroles.
Hydrothermal synthesis of Mn-doped CdS hollow sphere nanocomposites as efficient visible-light driven photocatalysts
Authors: Zhang Chunyan , Lai Jiasheng , Hu Juncheng
Published: January 2015

A series of Mn-doped CdS hollow sphere photocatalysts has been directly synthesized by a simple and facile hydrothermal route for the first time.
Lipid monolayer disruption caused by aggregated carbon nanoparticles
Authors: Nisoh Nililla , Karttunen Mikko , Monticelli Luca , Wong-ekkabut Jirasak
Published: January 2015

Carbon nanoparticles (CNP) have significant impact on the Pulmonary Surfactant (PS), the first biological barrier in the respiratory system.
Correction: Effect of selective oxidation of bacterial cellulose on degradability in phosphate buffer solution and their affinity for epidermal cell attachment
Authors: Shi Xiangning , Cui Qiuyan , Zheng Yudong , Peng Shuai , Wang Guojie , Xie Yajie
Published: January 2015

Correction for ‘Effect of selective oxidation of bacterial cellulose on degradability in phosphate buffer solution and their affinity for epidermal cell attachment’ by Xiangning Shi et al., RSC Adv., 2014, 4, 60749–60756.
Mesoporous inorganic salts with crystal defects: unusual catalysts and catalyst supports
Authors: Kang Xinchen , Shang Wenting , Zhu Qinggong , Zhang Jianling , Jiang Tao , Han Buxing , Wu Zhonghua , Li Zhihong , Xing Xueqing
Published: January 2015

Mesoporous LaF3, NdF3, and YF3 particles with crystal defects, which are excellent catalysts and catalyst supports, have been synthesized successfully.
Sulfonated polyimide and PVDF based blend proton exchange membranes for fuel cell applications
Authors: Yuan Qin , Liu Ping , Baker Gregory L.
Published: January 2015

Blend proton exchange membranes were prepared from sulfonated polyimide and PVDF and a percolation threshold of 30 wt% SPI was observed.
A robust cocatalyst Pd4S uniformly anchored onto Bi2S3 nanorods for enhanced visible light photocatalysis
Authors: Long Lu-Lu , Zhang Ai-Yong , Huang Yu-Xi , Zhang Xing , Yu Han-Qing
Published: January 2015

A novel photocatalyst hybrid, Bi2S3 nanorods uniformly anchored by Pd4S nanoparticles, was successfully synthesized using a facile method for efficient visible light photocatalysis.
Mixed matrix membranes with molecular-interaction-driven tunable free volumes for efficient bio-fuel recovery
Authors: Liu Gongping , Hung Wei-Song , Shen Jie , Li Qianqian , Huang Yun-Hsuan , Jin Wanqin , Lee Kueir-Rarn , Lai Juin-Yih
Published: January 2015

Molecular interactions were constructed to control polymer chain conformation to fabricate mixed matrix membranes with tunable free volumes, exhibiting simultaneously improved butanol permeability and selectivity.
Preparation and enhanced photoelectrochemical performance of selenite-sensitized zinc oxide core/shell composite structure
Authors: Hong Tiantian , Liu Zhifeng , Liu Hui , Liu Junqi , Zhang Xueqi , Han Jianhua , Guo Keying , Wang Bo
Published: January 2015

A fast, versatile and low-cost hydrothermal chemical synthesis based on ion-exchange has been used to deposit a shell of cupric selenite onto vertically aligned zinc oxide nanorod arrays with a buffer layer of zinc selenite for photoelectrochemical water splitting.
A newly-designed sandwich-structured graphene–Pt–graphene catalyst with improved electrocatalytic performance for fuel cells
Authors: Zhao Lei , Wang Zhen-Bo , Li Jia-Long , Zhang Jing-Jia , Sui Xu-Lei , Zhang Li-Mei
Published: January 2015

A novel sandwich-structured G–P–G catalyst prepared by a simple, facile synthesis method exhibits 1.27 times higher activity for methanol electro-oxidation than that of Pt/graphene and the stability is improved by 70% as compared with Pt/graphene.
A redox mediator doped gel polymer as an electrolyte and separator for a high performance solid state supercapacitor
Authors: Ma Guofu , Dong Miaomiao , Sun Kanjun , Feng Enke , Peng Hui , Lei Ziqiang
Published: January 2015

A stable and effective redox-mediator gel electrolyte has been prepared by doping indigo carmine (IC) into a polyvinyl alcohol sulfuric acid polymer system (PVA–H2SO4), and a high performance solid state supercapacitor is fabricated by utilizing activated carbon as electrodes and the prepared gel polymer (PVA–H2SO4–IC) as an electrolyte and separator.
3-Dimensional porous N-doped graphene foam as a non-precious catalyst for the oxygen reduction reaction
Authors: Zhou Xuejun , Bai Zhengyu , Wu Mingjie , Qiao Jinli , Chen Zhongwei
Published: January 2015

Nitrogen-doped graphene materials have been demonstrated as promising alternative catalysts for the oxygen reduction reaction (ORR) in fuel cells and metal–air batteries due to their relatively high activity and good stability in alkaline solutions.
A nanofibrous silver-nanoparticle/titania/carbon composite as an anode material for lithium ion batteries
Authors: Li Shun , Huang Jianguo
Published: January 2015

A nanofibrous Ag-NP/titania/carbon composite derived from a cellulose substance was fabricated, which showed enhanced electrochemical performances as an anode material for LIBs.
Palladium nanoparticles in catalytic carbon nanoreactors: the effect of confinement on Suzuki–Miyaura reactions
Authors: Cornelio B. , Saunders A. R. , Solomonsz W. A. , Laronze-Cochard M. , Fontana A. , Sapi J. , Khlobystov A. N. , Rance G. A.
Published: January 2015

Confinement of palladium nanoparticles inside carbon nanoreactors influences the activity, selectivity and stability of catalytic centres in Suzuki–Miyaura cross-coupling reactions.
Synergistic effects of magnetic drug targeting using a newly developed nanocapsule and tumor irradiation by ultrasound on CT26 tumors in BALB/c mice
Authors: Shakeri-Zadeh Ali , Khoee Sepideh , Shiran Mohammad-Bagher , Sharifi Ali Mohammad , Khoei Samideh
Published: January 2015

The aim of the current study was to magnetically target the 5-fluorouracil (5-Fu) loaded magnetic poly lactic-co-glycolic acid (PLGA) nanocapsules towards CT26 colon tumor model in BALB/c mice.
Solution-processable all-small molecular bulk heterojunction films for stable organic photodetectors: near UV and visible light sensing
Authors: Lee Hyena , Nam Sungho , Kwon Hyunju , Lee Sooyong , Kim Jungnam , Lee Woongki , Lee Chulyeon , Jeong Jaehoon , Kim Hwajeong , Shin Tae Joo , Kim Youngkyoo
Published: January 2015

Organic photodetectors with solution-processed all small-molecular bulk heterojunction layers detect near UV light and are stable under high-intensity lights stronger than sun light.
Quantum dot induced cellular perturbations involving varying toxicity pathways
Authors: Al-Ali Abdullah , Singh Neenu , Manshian Bella , Wilkinson Tom , Wills John , Jenkins Gareth J. S. , Doak Shareen H.
Published: January 2015

Quantum dots (QD) with varying surface chemistry can have an impact on cellular uptake and a range of indicators for cell perturbation.
STAT2/IRF9 directs a prolonged ISGF3-like transcriptional response and antiviral activity in the absence of STAT1
Authors: Blaszczyk Katarzyna , Olejnik Adam , Nowicka Hanna , Ozgyin Lilla , Chen Yi-Ling , Chmielewski Stefan , Kostyrko Kaja , Wesoly Joanna , Balint Balint Laszlo , Lee Chien-Kuo , Bluyssen Hans A.R.
Published: January 2015

Collectively our results strongly suggest that the alternative IFNα-mediated, STAT2/IRF9 dependent signaling pathway can induce a prolonged ISGF3-like transcriptome and generate an antiviral response analogous to ISGF3, independent of STAT1. Moreover, the existence of “STAT2/IRF9-specific” target genes predicts a novel role of STAT2 in IFNα signaling.
Decoupled current control and sensor fault detection with second‐order sliding mode for induction motor
Authors: Kommuri Suneel Kumar , Rath Jagat Jyoti , Veluvolu Kalyana Chakravarthy , Defoort Michael , Soh Yeng Chai
Published: January 2015

This study proposes a new decoupled control method for induction motor (IM) based on higher order sliding mode (HOSM) controller. The proposed controller serves dual purpose by offering decoupled control and sensor fault detection. In this scheme, the decoupled control of d  − q currents does not require the knowledge of the speed. The HOSM controllers play the same role as the compensation voltages produced by a decoupling compensator. From the compensation voltages, the speed can be estimated accurately through algebraic calculations. The estimated and actual speeds are then employed for fault detection algorithm to detect the fault. Simulations on a 1/4‐hp three‐phase IM in the presence of random measurement noise highlights the performance of the proposed approach for decoupling current control and robust sensor fault detection.
Output‐feedback sliding‐mode control for systems subjected to actuator and internal dynamics failures
Authors: Cunha José Paulo V.S. , Costa Ramon R. , Hsu Liu , Oliveira Tiago Roux
Published: January 2015

This study presents an output‐feedback control algorithm based on unit vector sliding mode for a class of multivariable systems. The control objective is to force each output signal to track a desired reference trajectory, while retaining good performance despite parameter uncertainties, unmatched disturbances and actuators faults that eventually may occur in the plant. Owing to the new approach proposed to tackle this problem, which involves a linear matrix inequality to be satisfied by the control distribution matrix, no upper bound on this matrix is required. Moreover, a remarkable result is that the proposed fault‐tolerant controller can even handle variations in the order of the system dynamics. The analysis shows that the resulting closed‐loop system is globally exponentially stable. A simulation example with a chain of trailers driven by redundant actuators illustrates the design and effectiveness of the proposed strategy.
Event‐based synchronisation of linear discrete‐time dynamical networks
Authors: Chen Michael Z. Q. , Zhang Liangyin , Su Housheng , Li Chanying
Published: January 2015

This study investigates the problem of event‐based synchronisation of linear discrete‐time dynamical networks. Leader‐following and leaderless synchronisations are achieved by a distributed event‐trigger strategy. It is shown that feedback control updating is unnecessary until an event is triggered. The combinational‐state variables and the Riccati equation are used to construct a Liapunov function and to design the event‐triggering conditions. Numerical examples are provided to illustrate the theoretical results.
Robust global identification of linear parameter varying systems with generalised expectation–maximisation algorithm
Authors: Yang Xianqiang , Lu Yaojie , Yan Zhibin
Published: January 2015

In this study, a robust approach to global identification of linear parameter varying (LPV) systems in an input–output setting is proposed. In practice, the industrial process data are often contaminated with outliers. In order to handle outliers in process modelling, the robust LPV modelling problem is formulated and solved in the scheme of generalised expectation–maximisation (GEM) algorithm. The measurement noise is taken to follow the Student's t ‐distribution instead of using the conventional Gaussian distribution, in this algorithm. The extent of robustness of the proposed approach is adaptively adjusted by optimising the degrees of freedom parameter of the Student's t ‐distribution iteratively through the maximisation step of the GEM algorithm. The numerical example is provided to demonstrate the effectiveness of the proposed approach.