bluuebunny/crossref_metadata_2025 huggingface dataset:
Levosimendan in patients with left ventricular dysfunction undergoing cardiac surgery: a meta-analysis and trial sequential analysis of randomized trials
Authors: Xing Zhenhua , Tang Liang , Chen Pengfei , Huang Jiabing , peng Xiaofan , Hu Xinqun
Published: May 2018

Patients with left ventricular dysfunction (LVD) undergoing cardiac surgery have a high mortality rate. Levosimendan, a calcium sensitizer, improves myocardial contractility without increasing myocardial oxygen demand. It is not clear whether levosimendan can reduce mortality in cardiac surgery patients with LVD. The PubMed, Embase, and Cochrane Central databases were searched to identify randomized trials comparing levosimendan with conventional treatment in cardiac surgery patients with LVD. We derived pooled risk ratios (RRs) with random effects models. The primary endpoint was perioperative mortality. Secondary endpoints were renal replacement treatment, atrial fibrillation, myocardial infarction, ventricular arrhythmia, and hypotension. Fifteen studies enrolling 2606 patients were included. Levosimendan reduced the incidence of perioperative mortality (RR: 0.64, 95%CI: 0.45–0.91) and renal replacement treatment (RR:0.71, 95%CI:0.52–0.95). However, sensitivity analysis, subgroup analysis and Trial Sequential Analysis (TSA) indicated that more evidence was needed. Furthermore, levosimendan did not reduce the incidence of atrial fibrillation (RR:0.82, 95%CI:0.64–1.07), myocardial infarction (RR:0.56, 95%CI:0.26–1.23), or ventricular arrhythmia (RR:0.74, 95%CI:0.49–1.11), but it increased the incidence of hypotension (RR:1.11,95%CI:1.00–1.23). There was not enough high-quality evidence to either support or contraindicate the use of levosimendan in cardiac surgery patients with LVD.
Retraction Note: Murine hypothalamic destruction with vascular cell apoptosis subsequent to combined administration of human papilloma virus vaccine and pertussis toxin
Authors: Aratani Satoko , Fujita Hidetoshi , Kuroiwa Yoshiyuki , Usui Chie , Yokota Shumpei , Nakamura Ikuro , Nishioka Kusuki , Nakajima Toshihiro
Published: May 2018

Scientific Reports 6: Article number: 36943; published online: 11 November 2016; updated: 11 May 2018 The Publisher is retracting this Article because the experimental approach does not support the objectives of the study. The study was designed to elucidate the maximum implication of human papilloma virus (HPV) vaccine (Gardasil) in the central nervous system.
Erratum: Comparative Transcriptome Analysis Identifies Candidate Genes Related to Skin Color Differentiation in Red Tilapia
Authors: Zhu Wenbin , Wang Lanmei , Dong Zaijie , Chen Xingting , Song Feibiao , Liu Nian , Yang Hui , Fu Jianjun
Published: May 2018

Scientific Reports 6: Article number: 31347; published online: 11 August 2016; updated: 11 May 2018 In the original version of this Article, the Supplementary Information files containing the supplementary figure and datasets were omitted. This error has now been corrected in the PDF and HTML versions of the Article.
Switchable polarity solvents for preconcentration and simultaneous determination of amino acids in human plasma samples
Authors: Zare Fahimeh , Ghaedi Mehrorang , Jannesar Ramin , Tayebi Lobat
Published: May 2018

The application of a mixture of amidine and alcohol as a switchable polarity solvent for the microextraction of 19 amino acids in biological samples.
Engineering thermoresponsive phase separated vesicles formedviaemulsion phase transfer as a content-release platform
Authors: Karamdad Kaiser , Hindley James W. , Bolognesi Guido , Friddin Mark S. , Law Robert V. , Brooks Nicholas J. , Ces Oscar , Elani Yuval
Published: May 2018

Elucidation of cholesterol insertion efficiency into phase-transfer vesicles enables the rational design of phase-separated membranes as thermally-responsive platforms for artificial cell construction.
Facile fabrication of a 3,4,9,10-perylene tetracarboxylic acid functionalized graphene–multiwalled carbon nanotube–gold nanoparticle nanocomposite for highly sensitive and selective electrochemical detection of dopamine
Authors: Zhang Cong , Ren Jujie , Zhou Jiexin , Cui Min , Li Na , Han Bingkai , Chen Qiang
Published: May 2018

A PTCA-RGO-MWCNT-Au NP nanocomposite was facilely fabricated for highly sensitive and selective electrochemical detection of dopamine.
Systematic analysis of various ionic liquids by attenuated total reflectance spectroscopy (145–450 nm) and quantum chemical calculations
Authors: Tanabe Ichiro , Suyama Aki , Sato Taiki , Fukui Ken-ichi
Published: May 2018

Electronic absorption spectra in 140–450 nm were investigated by attenuated total reflectance spectroscopy and quantum chemical calculations.
A thumb-size electrochemical system for portable sensors
Authors: Gu Zhen , Liu Hui-Xin , Ying Yi-Lun , Xiu Guangli , Long Yi-Tao
Published: May 2018

A thumb-size and precise electrochemical system is designed for sensors in size and cost sensitive applications.
Detection of pulmonary surfactant protein A by using an aptamer-based liquid crystal biosensor
Authors: Wang Ying , Wang Bing , Zhang Qingli , Xiong Xingliang , Deng Shixiong
Published: May 2018

An aptamer-based liquid crystal biosensor for the detection of pulmonary surfactant protein A has been presented.
Sprayed liquid–gas extraction of semi-volatile organophosphate malathion from air and contaminated surfaces
Authors: Zarejousheghani Mashaalah , Walte Andreas , Borsdorf Helko
Published: May 2018

In this study, a new air sampling method termed sprayed liquid–gas extraction (SLGE) was developed for semi-volatile organic compounds.
First identification of unstable phosphino formic acid (H2PCOOH)
Authors: Zhu Cheng , Frigge Robert , Turner Andrew M. , Kaiser Ralf I. , Sun Bing-Jian , Chen Si-Ying , Chang Agnes H. H.
Published: May 2018

The hitherto elusive phosphino formic acid (H2PCOOH) was identified for the first time with unexpected kinetic stability.
Influenza A M2 transmembrane domain tunes its conformational heterogeneity and structural plasticity in the lipid bilayer by forming loop structures
Authors: Liu Yue , Tan Junjun , Zhang Jiahui , Li Chuanzhao , Luo Yi , Ye Shuji
Published: May 2018

The influenza A virus M2TM tunes its conformational heterogeneity and structural plasticity by undergoing a helix-to-loop transition. A gating mechanism coupled to the rotational motion or conformational change of the helices depends on the lipid types.
Size structure–catalytic performance correlation of supported Ni/MCF-17 catalysts for COx-free hydrogen production
Authors: Li Yanping , Wen Jie , Ali Arshid M. , Duan Ming , Zhu Wei , Zhang Hui , Chen Chen , Li Yadong
Published: May 2018

Size structure–catalytic performance correlation was investigated with supported Ni/MCF-17 catalysts over COx-free hydrogen production via the ammonia decomposition reaction.
Palladium/H+-cocatalyzed kinetic resolution of tertiary propargylic alcohols
Authors: Zhang Wanli , Ma Shengming
Published: May 2018

A new concept for the synthesis of optically active tertiary propargylic alcohols with 90–99% ee through palladium/H+-cocatalyzed kinetic resolution was developed.
Towards single-molecule in situ electrochemical SERS detection with disposable substrates
Authors: Martín-Yerga Daniel , Pérez-Junquera Alejandro , González-García María Begoña , Hernández-Santos David , Fanjul-Bolado Pablo
Published: May 2018

Nanostructure and surface charge can be tuned during the electrochemical activation of SERS substrates achieving highly active surfaces with feasible detection of a few molecules.
The synergistic effect of self-assembly and visible-light induced the oxidative C–H acylation of N-heterocyclic aromatic compounds with aldehydes
Authors: Zhang Lingling , Zhang Guoting , Li Yongli , Wang Shengchun , Lei Aiwen
Published: May 2018

Constructing carbon–carbon bonds through oxidative cross-coupling between two hydrocarbon compounds is regarded as a foundational issue in green chemistry.
Heterogeneous nucleation and growth of highly crystalline imine-linked covalent organic frameworks
Authors: Yuan Yu-Chen , Sun Bing , Cao An-Min , Wang Dong , Wan Li-Jun
Published: May 2018

A heterogeneous nucleation and growth method was established to conveniently synthesize highly crystalline imine-linked COFs.
Room-temperature film formation of metal halide perovskites on n-type metal oxides: the catalysis of ZnO on perovskite crystallization
Authors: Yuan Zhongcheng , Bai Sai , Yan Zhibo , Liu Jun-Ming , Gao Feng
Published: May 2018

The ZnO/perovskite interface can efficiently catalyse the perovskite crystallization process even without thermal annealing.
Decomposition of an aqueous ammonia solution as a photon energy conversion reaction using a Ru-loaded ZnS photocatalyst
Authors: Iwase Akihide , Ii Kazutaka , Kudo Akihiko
Published: May 2018

A metal sulfide (ZnS) was successfully applied to an energy conversion (artificial photosynthetic) reaction by loading a Ru-cocatalyst.
TiO2/TiN core/shell nanobelts for efficient solar hydrogen generation
Authors: Yu Xin , Zhao Zhenhuan , Sun Deihui , Ren Na , Ding Longhua , Yang Ruiqi , Ji Yanchen , Li Linlin , Liu Hong
Published: May 2018

TiO2/TiN core/shell NBs are successfully synthesized, and used as highly efficient photocatalytic H2 evolution catalysts (120 μmol h−1 g−1) from methanol solution.
Ru-Complexes of an anionic germabenzenyl ligand
Authors: Fujimori Shiori , Mizuhata Yoshiyuki , Tokitoh Norihiro
Published: May 2018

Complexation of germabenzenylpotassium [KGeC5(t-Bu)H4] with [Cp*RuCl]4 resulted in the formation of two types of ruthenium complexes having unique coordination modes.
Perfect balance harmony in Ba2NO3(OH)3: a beryllium-free nitrate as a UV nonlinear optical material
Authors: Dong Xuehua , Huang Ling , Liu Qingyu , Zeng Hongmei , Lin Zhien , Xu Dingguo , Zou Guohong
Published: May 2018

Ba2NO3(OH)3 exhibits a perfect balance of a large SHG coefficient, a short UV absorption cutoff edge, an appropriate birefringence, and stable physicochemical properties.
Tuning the electrochemical potential of perfunctionalized dodecaborate clusters through vertex differentiation
Authors: Wixtrom Alex I. , Parvez Zeeshan A. , Savage Miles D. , Qian Elaine A. , Jung Dahee , Khan Saeed I. , Rheingold Arnold L. , Spokoyny Alexander M.
Published: May 2018

We report a new class of redox-active vertex-differentiated dodecaborate clusters featuring pentafluoroaryl groups.
Synthons for carbide complex chemistry
Authors: Reinholdt Anders , Hill Anthony F. , Bendix Jesper
Published: May 2018

Harnessing lability, the miniaturized ligand sphere in a [RuC–Pt] complex establishes a straightforward building-block approach to carbide complexes.
Novel stable metal–organic framework photocatalyst for light-driven hydrogen production
Authors: Yu Qi , Dong Hong , Zhang Xin , Zhu Ya-Xin , Wang Jian-Hui , Zhang Feng-Ming , Sun Xiao-Jun
Published: May 2018

A novel stable Dye-based Dy-MOF exhibits efficient photocatalytic activity for hydrogen generation.
Structural and energetic aspects of adamantane and memantine derivatives of sulfonamide molecular crystals: experimental and theoretical characterisation
Authors: Voronin Alexander P. , Volkova Tatiana V. , Ilyukhin Andrey B. , Trofimova Tatiana P. , Perlovich German L.
Published: May 2018

A number of new sulfonamide compounds with adamantane and memantine fragments were synthesised and characterised.
Multicomponent solids of uracil derivatives – orotic and isoorotic acids
Authors: Kumar Vineet , Goswami Pramod Kumar , Thaimattam Ram , Ramanan Arunachalam
Published: May 2018

Cocrystallization of two multifunctional structural isomers viz. orotic and isoorotic acids was explored with a series of amine and pyridine-based coformers.
Synthesis of an ultra-stable metal–organic framework for proton conduction
Authors: Liu Chuanfang , Zhao Nian , Zou Xiaoqin , Zhu Guangshan
Published: May 2018

An ultra-stable metal organic framework material has been successfully synthesized for proton conduction.
Characterization of interfacial barrier charging as a resistive switching mechanism in Ag/Sb2Te3/Ag heterojunctions
Authors: Cao Xinran , Meng Caimin , Li Jing , Wang Jun , Yuan Yafei , Su Jing , Liu Chunmin , Zhang Xintong , Zhang Hao , Wang Jianlu
Published: May 2018

The memristive nature of Ag/Sb2Te3/Ag heterostructural cells was systematically characterized and potentially extended to a novel multilevel memory concept.
Probing the interaction between solid benzene and water using vacuum ultraviolet and infrared spectroscopy
Authors: Dawes Anita , Pascual Natalia , Mason Nigel J. , Gärtner Sabrina , Hoffmann Søren V. , Jones Nykola C.
Published: May 2018

Benzene exhibits strong concentration dependent energy shifts of electronic states in solid phase mixtures with water ice.
Entropy connects water structure and dynamics in protein hydration layer
Authors: Dahanayake Jayangika N. , Mitchell-Koch Katie R.
Published: May 2018

Protein hydration layer dynamics vary by region, and depend on structure (density and tetrahedrality) of local water layer.
In situ vibrational spectroscopy of adsorbed nitrogen in porous carbon materials
Authors: Ray Paramita , Xu Enshi , Crespi Vincent H. , Badding John V. , Lueking Angela D.
Published: May 2018

This study uses in situ vibrational spectroscopy to probe nitrogen adsorption to porous carbon materials, including single-wall carbon nanotubes and Maxsorb super-activated carbon, demonstrating how the nitrogen Raman stretch mode is perturbed by adsorption.
Open flow non-enzymatic template catalysis and replication
Authors: Gonçalves da Silva Larwsk H. , Hochberg David
Published: May 2018

Fully reversible template assisted ligation and replication leads to high template yields in open flow reactors.
Mechanism of photocatalytic water splitting with triazine-based carbon nitrides: insights from ab initio calculations for the triazine–water complex
Authors: Ehrmaier Johannes , Janicki Mikołaj J. , Sobolewski Andrzej L. , Domcke Wolfgang
Published: May 2018

Valuable theoretical insights into the mechanism of photocatalytic water-splitting using triazine as a model system for carbon-nitride materials.
Thermodynamics and defect chemistry of substitutional and interstitial cation doping in layered α-V2O5
Authors: McColl Kit , Johnson Ian , Corà Furio
Published: May 2018

A systematic study of the location and energetics of cation dopants in α-V2O5 has been conducted using pair-potential methods, supplemented by first-principles calculations.
Infrared spectrum and intermolecular potential energy surface of the CO–O2 dimer
Authors: Barclay A. J. , McKellar A. R. W. , Moazzen-Ahmadi N. , Dawes Richard , Wang Xiao-Gang , Carrington Tucker
Published: May 2018

The spectrum of the weakly-bound radical complex CO–O2 is studied for the first time.
Guiding principles for peptide nanotechnology through directed discovery
Authors: Lampel A. , Ulijn R. V. , Tuttle T.
Published: May 2018

This review explores recent efforts in the experimental and computational mapping and searching of the peptide sequence space, or directed discovery, of functional peptide based nanoscale systems and materials.
Cinnamyl alcohol oxidation using supported bimetallic Au–Pd nanoparticles: an investigation of autoxidation and catalysis
Authors: Rucinska Emilia , Miedziak Peter J. , Pattisson Samuel , Brett Gemma L. , Iqbal Sarwat , Morgan David J. , Sankar Meenakshisundaram , Hutchings Graham J.
Published: May 2018

In this study, we examine autoxidation and its role on the catalytic aerobic oxidation of cinnamyl alcohol using supported AuPd nanoparticles.
Mixed metal double salt ionic liquids comprised of [HN222]2[ZnCl4] and AlCl3 provide tunable Lewis acid catalysts related to the ionic environment
Authors: Kore Rajkumar , Kelley Steven. P. , Aduri Pavankumar , Rogers Robin D.
Published: May 2018

Tunable acidic mixed-metal double salt ionic liquids (DSILs), [HN222]2x[(1 − x)AlCl3 + xZnCl4], were prepared by mixing [HN222]2[ZnCl4] with AlCl3, and found to have unique and controllable catalytic activities.
Efficient alkaline hydrogen evolution electrocatalysis enabled by an amorphous Co–Mo–B film
Authors: Sun Zhaomei , Hao Shuai , Ji Xuqiang , Zheng Xiangjiang , Xie Junfeng , Li Xuemei , Tang Bo
Published: May 2018

An amorphous Co–Mo–B film on a Ti mesh (Co–Mo–B/Ti) acts as a durable hydrogen evolution reaction electrocatalyst with an overpotential of 110 mV to drive 20 mA cm−2in 1.0 M KOH.
Experimental and quantum chemical studies of anionic analogues of N-heterocyclic carbenes
Authors: Niu Haoyu , Mangan Robert J. , Protchenko Andrey V. , Phillips Nicholas , Unkrig Wiebke , Friedmann Christian , Kolychev Eugene L. , Tirfoin Rémi , Hicks Jamie , Aldridge Simon
Published: May 2018

A combination of quantum chemical and synthetic/crystallographic methods have been employed to probe electronic structure in two series of anionic ligands related to the well-known NHC donor class.
Excited state dynamics and time-resolved photoelectron spectroscopy of para-xylylene
Authors: Issler Kevin , Röder Anja , Hirsch Florian , Poisson Lionel , Fischer Ingo , Mitrić Roland , Petersen Jens
Published: May 2018

We investigated the excited-state dynamics of para-xylylene using a combination of field-induced surface hopping simulations and time-resolved photoionisation experiments. Ultraviolet excitation is followed by nonadiabatic relaxation to the ground state in a two-step mechanism on the sub-ps time scale.
Improving the production of maleic acid from biomass: TS-1 catalysed aqueous phase oxidation of furfural in the presence of γ-valerolactone
Authors: Rodenas Y. , Mariscal R. , Fierro J. L. G. , Martín Alonso D. , Dumesic J. A. , López Granados M.
Published: May 2018

The production of di-acids from biomass, i.e. maleic acid (MAc), can be improved by combining the utilization of GVL as co-solvent and TS-1 as solid catalyst.
Ionic liquids tailored and confined by one-step assembly with mesoporous silica for boosting the catalytic conversion of CO2 into cyclic carbonates
Authors: Su Qian , Qi Yaqiong , Yao Xiaoqian , Cheng Weiguo , Dong Li , Chen Songsong , Zhang Suojiang
Published: May 2018

By one-step assembly with mesoporous silica, different amounts of EmimBr were dispersed and confined for boosting CO2 conversion into cyclic carbonates.
LIBS analyses for industrial applications – an overview of developments from 2014 to 2018
Authors: Noll Reinhard , Fricke-Begemann Cord , Connemann Sven , Meinhardt Christoph , Sturm Volker
Published: May 2018

Measuring distances in the range between a few centimetres and a few metres are of special interest for automated industrial LIBS applications.
Evaluation of different plasma conditions and resolutions for understanding elemental organophosphorus analysis via GC-ICP-SF-MS
Authors: Stenzel Yannick Philipp , Winter Martin , Nowak Sascha
Published: May 2018

The state-of-the-art electrolyte in lithium ion battery application is composed of a solvent mixture of organic carbonates and lithium hexafluorophosphate (LiPF6) as the conducting salt.
Dynamic microfluidic nanocalorimetry system for measuringCaenorhabditis elegansmetabolic heat
Authors: Krenger Roger , Lehnert Thomas , Gijs Martin A. M.
Published: May 2018

A nanocalorimetry system with integrated microfluidic chips for on-chip measurements of metabolic heat signals ofC. elegans.
Structural and biological evaluation of halogen derivatives of 1,9-pyrazoloanthrones towards the design of a specific potent inhibitor of c-Jun-N-terminal kinase (JNK)
Authors: Ganduri Ramesh , Singh Vikas , Biswas Ansuman , Karothu Durga Prasad , Sekar Kanagaraj , Balaji Kithiganahalli N. , Guru Row Tayur N.
Published: May 2018

A specifically designed halogen derivatives of anthrapyrazolone for the selective inhibition of JNKs at lower concentrations with minimal off-target effects on MAPKs.
New 2-(aryl/heteroaryl)-6-(morpholin-4-yl/pyrrolidin-1-yl)-(4-trifluoromethyl)quinolines: synthesis via Buchwald–Hartwig amination, photophysics, and biomolecular binding properties
Authors: Bonacorso Helio G. , Rodrigues Melissa B. , Iglesias Bernardo A. , da Silveira Carolina H. , Feitosa Sarah C. , Rosa Wilian C. , Martins Marcos A. P. , Frizzo Clarissa P. , Zanatta Nilo
Published: May 2018

New 6-(morpholino/pyrrolidino)quinolines displaying interesting photophysical and biomolecular binding properties achieved by Buchwald–Hartwig amination.
A novel dual-emission fluorescent nanohybrid containing silica nanoparticles and gold nanoclusters for ratiometric determination of cysteine based on turn-on fluorescence strategy
Authors: Xu Na , Yuan Yaqing , Lan Chengwu , Wei Wenqi , Meng Lei , Fan Louzhen
Published: May 2018

A novel fluorescence sensor SiO2NPs/AuNCs nanohybrid has been used developed for ratiometric visual detection of Cys.
Isoelectronic Pt(ii)– and Au(iii)–N-heterocyclic carbene complexes: a structural and biological comparison
Authors: Rana Bidyut Kumar , Mishra Snehasis , Sarkar Deblina , Mondal Tapan Kumar , Seth Saikat K. , Bertolasi Valerio , Das Saha Krishna , Bielawski Christopher W. , Isab Anvarhusein A. , Dinda Joydev
Published: May 2018

To differentiate the intrinsic biological activities displayed by Pt vs. Au reagents, a series of square planar carbene complexes were compared.
Binding of alkyl halides in water-soluble cavitands with urea rims
Authors: Yu Yang , Li Yong-Sheng , Rebek Julius
Published: May 2018

Alkyl halide guests in cavitands move rapidly and maintain halide to contact with the aryl surfaces of the host.
S⋯S and S⋯P chalcogen bonding in solution: a cryospectroscopic study of the complexes of 2,2,4,4-tetrafluoro-1,3-dithietane with dimethyl sulfide and trimethylphosphine
Authors: Geboes Yannick , De Vos Elias , Herrebout Wouter A.
Published: May 2018

Experimental evidence on the formation of S⋯S and P⋯S chalcogen bonded complexes between 2,2,4,4-tetrafluoro-1,3-dithiethane and the Lewis bases dimethyl sulfide and trimethylphosphine is obtained using infrared spectroscopy of solutions in liquid krypton.
A pair of mononuclear Dy(iii) enantiomers showing single-ion magnetic and ferroelectric properties
Authors: Li Xi-Li , Zhu Cancan , Rong Qixiang , Wei Jiahao , Li Ruixue , Liu Cai-Ming
Published: May 2018

A new pair of Dy(iii)-β-diketonate enantiomers with chiral N,N′-donor ligands display chiroptical activities and ferroelectric and single-ion magnetic properties, and act as potential multifunctional molecule-based materials.
Positioning growth of NPB crystalline nanowires on the PTCDA nanocrystal template
Authors: Wang Hong , Lin Haiping , Fan Xing , Ostendorp Stefan , Wang Yandong , Huang Lizhen , Jiang Lin , Li Youyong , Wilde Gerhard , Fuchs Harald , Wang Wenchong , Chi Lifeng
Published: May 2018

NPB crystalline nanowires are selectively grown on pre-defined areas by employing PTCDA nano-crystal as template.
Target-initiated synthesis of fluorescent copper nanoparticles for the sensitive and label-free detection of bleomycin
Authors: Zhang Dandan , Hu Juan , Yang Xiao-yun , Wu Yanxia , Su Wenmei , Zhang Chun-yang
Published: May 2018

We developed a label-free method for the sensitive detection of bleomycin on the basis of the target-initiated synthesis of fluorescent copper nanoparticles.
Shock response of condensed-phase RDX: molecular dynamics simulations in conjunction with the MSST method
Authors: Ge Ni-Na , Bai Sha , Chang Jing , Ji Guang-Fu
Published: May 2018

We have performed molecular dynamics simulations in conjunction with the multiscale shock technique (MSST) to study the initial chemical processes of condensed-phase RDX under various shock velocities (8 km s−1, 10 km s−1 and 11 km s−1).
Magnetic torsional actuation of carbon nanotube yarn artificial muscle
Authors: Lee Duck Weon , Kim Shi Hyeong , Kozlov Mikhail E. , Lepró Xavier , Baughman Ray H. , Kim Seon Jeong
Published: May 2018

Magnetically driven torsional actuation of a multiwalled carbon nanotube (MWNT) yarn was realized by first biscrolling NdFeB magnetic particles into helical yarn corridors to make a magnetic MWNT yarn.
Amorphous red phosphorus incorporated with pyrolyzed bacterial cellulose as a free-standing anode for high-performance lithium ion batteries
Authors: Yang Hongyu , Li Yu , Long Peng , Han Junkai , Cao Chen , Yao Fengnan , Feng Wei
Published: May 2018

A novel freestanding anode was prepared by combining amorphous red-P with a pyrolyzed bacterial cellulose (PBC) matrix for the first time.
Structural disorder in the high-temperature cubic phase of GeTe
Authors: Xu Ming , Lei Zhenyu , Yuan Junhui , Xue Kanhao , Guo Yanrong , Wang Songyou , Miao Xiangshui , Mazzarello Riccardo
Published: May 2018

The structurally ordered rhombohedral GeTe transforms into a high-symmetric cubic phase with larger structural disorder at high temperature.
Lavender-like cobalt hydroxide nanoflakes deposited on nickel nanowire arrays for high-performance supercapacitors
Authors: Liao Jie , Wang Xuanyu , Wang Yang , Su Songyang , Nairan Adeela , Kang Feiyu , Yang Cheng
Published: May 2018

Co(OH)2 nanoflakes deposited on nickel nanowire arrays with a lavender-like architecture are prepared. Using it as cathode and activated carbon as anode, the flexible supercapacitor shows superior energy storage ability.
A weaker donor shows higher oxidation state upon aggregation
Authors: Ma Longfei , Peng Haili , Lu Xiaofeng , Liu Lei , Shao Xiangfeng
Published: May 2018

A weaker donor is dicationic but a stronger donor appears as a cation radical in their CT complexes with iodine.
The robust, readily available cobalt(iii) trication [Co(NH2CHPhCHPhNH2)3]3+ is a progenitor of broadly applicable chirality and prochirality sensing agents
Authors: Luu Quang H. , Lewis Kyle G. , Banerjee Anik , Bhuvanesh Nattamai , Gladysz John A.
Published: May 2018

Salts of the title trication are the best chiral solvating agents found to date in terms of applicability to a broad spectrum of analytes, use at low loadings (avg 34 and 14 mol%, 2X−BAr4− salts (X = Cl, I), and ability to analyze mixtures.
Microfluidic curved-channel centrifuge for solution exchange of target microparticles and their simultaneous separation from bacteria
Authors: Bayat Pouriya , Rezai Pouya
Published: May 2018

Microfluidic centrifuge for simultaneous target particle isolation from non-target particles and their continuous solution exchange at 1 mL min−1 flow rate.
Robust multi-responsive supramolecular hydrogel based on a mono-component host–guest gelator
Authors: Cheng Weinan , Zhao Dongxu , Qiu Yuan , Hu Haisi , Wang Hong , Wang Qin , Liao Yonggui , Peng Haiyan , Xie Xiaolin
Published: May 2018

The multi-responsive behaviors and formation mechanism of a robust supramolecular hydrogel based on a mono-component host–guest gelator have been emphasized.
Design and preparation of sandwich-like polydimethylsiloxane (PDMS) sponges with super-low ice adhesion
Authors: He Zhiwei , Zhuo Yizhi , He Jianying , Zhang Zhiliang
Published: May 2018

Durable sandwich-like PDMS sponges are achieved via a facile preparation method and show a lowest ice adhesion of 0.9 kPa.
High thermoelectric performance of n-type Bi2Te2.7Se0.3via nanostructure engineering
Authors: Li D. , Li J. M. , Li J. C. , Wang Y. S. , Zhang J. , Qin X. Y. , Cao Y. , Li Y. S. , Tang G. D.
Published: May 2018

BiSbTe has been realized as an ideal p-type thermoelectric material near room temperature; however, its commercial applications are largely restricted by its n-type counterpart that exhibits relatively inferior thermoelectric performance.
Electron-rich graphite-like electrode: stability vs. voltage for Al batteries
Authors: Bhauriyal Preeti , Garg Priyanka , Patel Mahendra , Pathak Biswarup
Published: May 2018

The development of efficient Al batteries is hindered by the major challenge of finding advanced electrode materials, which can deliver higher voltage and storage capacities with ultra-fast charge/discharge rates.
Calixarene functionalization of TiO2nanoarrays: an effective strategy for enhancing the sensor versatility
Authors: Oueslati Issam , Ghrairi Akrem , Ribeiro Edivagner S. , Batista de Carvalho Luís A. E. , Gil João M. , Paixao José A.
Published: May 2018

An effective strategy is proposed for building enhanced versatile detector array towers with new types of behaviors and unprecedented applications.
APTES-functionalized thin-walled porous WO3 nanotubes for highly selective sensing of NO2 in a polluted environment
Authors: Liu Wei , Xu Lin , Sheng Kuang , Chen Cong , Zhou Xiangyu , Dong Biao , Bai Xue , Zhang Shuang , Lu Geyu , Song Hongwei
Published: May 2018

Controlled thin-walled nanotubes@APTES was developed as a highly selective sensor for NO2 detection in polluted air.
Linking thermoelectric generation in polycrystalline semiconductors to grain boundary effects sets a platform for novel Seebeck effect-based sensors
Authors: Hossein-Babaei Faramarz , Masoumi Saeed , Noori Amirreza
Published: May 2018

Data available on the thermoelectric properties of polycrystalline semiconductors are inconsistent, riddled with gaps, and ascribe stronger Seebeck effects to polycrystalline samples rather than single crystals.
Robust polymer nanofilms with bioengineering and environmental applications via facile and highly efficient covalent layer-by-layer assembly
Authors: Huang Jun , Qiu Xiaoyong , Yan Bin , Xie Lei , Yang Jingqi , Xu Haolan , Deng Yonghong , Chen Lingyun , Wang Xiaogang , Zeng Hongbo
Published: May 2018

Novel robust and multifunctional polymer nanofilms were prepared through facile and highly efficient covalent layer-by-layer assembly.
Effect of the calcination process on CdO–ZnO nanocomposites by a honey-assisted combustion method for antimicrobial performance
Authors: Somasundaram Gopi , Rajan Jayaprakash , Paul Justin
Published: May 2018

This work reports on honey as a combustion agent of CdO : ZnO nanocomposites and the effects of further annealing on their structural, optical, morphological, elemental, electrical and antimicrobial properties are investigated.
Congested shallow water model: roof modeling in free surface flow
Authors: Godlewski Edwige , Parisot Martin , Sainte-Marie Jacques , Wahl Fabien
Published: May 2018

We are interested in the modeling and the numerical approximation of flows in the presence of a roof, for example flows in sewers or under an ice floe. A shallow water model with a supplementary congestion constraint describing the roof is derived from the Navier-Stokes equations. The congestion constraint is a challenging problem for the numerical resolution of hyperbolic equations. To overcome this difficulty, we follow a pseudo-compressibility relaxation approach. Eventually, a numerical scheme based on a finite volume method is proposed. The well-balanced property and the dissipation of the mechanical energy, acting as a mathematical entropy, are ensured under a non-restrictive condition on the time step in spite of the large celerity of the potential waves in the congested areas. Simulations in one dimension for transcritical steady flow are carried out and numerical solutions are compared to several analytical (stationary and non-stationary) solutions for validation.
Impact of Surgically and Radiologically Detected Incidental Internal Mammary Lymph Node Enlargement in Breast Cancer Patients Undergoing Free-Flap Breast Reconstruction
Authors: Khalil Haitham , Kalkat Maninder , Malahias Marco , Rhobaye Saif , Ashour Tarek , Faroq Tahir , Shimal Amar , Tsalic Medy , Naidu Babu
Published: May 2018

Background The internal mammary lymph node (IMLN) basin is considered the second most important regional nodal basin in breast cancer. IMLNs are often not detected radiologically and left untreated, with symptomatic recurrence being 0.1%. Challenges in accessibility have been an obstacle in achieving a comprehensive treatment plan, especially with undetermined and radiologically enlarged IMLN. Free autologous tissue breast reconstruction is considered the gold standard, and the familiarity of microvascular surgeons in using the internal mammary vessels (IMVs) puts them in a unique position to shed more light on the natural pathological process of IMLN metastases.

Materials and Methods A retrospective data analysis study was conducted evaluating 270 patients who underwent 307 free flaps for breast reconstruction using the IMV in the period between 2009 and 2017. Patient's demographics and clinicopathological data including IMLN harvest, radiological, operative details, adjuvant therapy, postoperative morbidity, and follow-up outcome data were analyzed.

Results Eighty-nine enlarged IMLNs were surgically retrieved from 30.7% (83/270) of the patients (73 delayed, 10 immediate breast reconstructions) with an age range of 29 to 77 years (mean: 45). Eighty six were incidentally encountered during surgery, whereas in three, the enlarged IMLN was preoperatively, radiologically determined and biopsied during computed tomography (CT) scan staging and was retrieved subsequently during surgery. IMLN metastases were confirmed in 8.4% (7/83) of the patients in whom IMLNs were retrieved with subsequent modification of the proposed adjuvant therapy. The follow-up period ranged from 3 to 84 months (mean: 42) for the involved IMLN patients. Two patients (28% [2/7]) showed signs of disease progression with mortality.

Conclusion Microvascular surgeons in a multidisciplinary setting would provide a valuable role in improving outcomes of patients with IMLN metastases through better diagnosis and staging of incidentally enlarged metastatic IMLN and provision of an effective approach for locoregional disease control.
Biología del transporte axonal y síndrome de doble compresión
Authors: Rosales R. , Lastra A. , Hernández L. , Fernández A.
Published: May 2018

Después de más de 40 años desde la descripción del Síndrome de Doble Compresión por Upton y McComas en el Lancet, sigue siendo un tema debatido que ha llevado a algunos cirujanos de mano a dudar de su existencia. La evidencia científica demuestra que la alteración del transporte axonal es el mecanismo más plausible en la fisiopatología de ese síndrome de compresión nerviosa. Se ha demostrado que una cuidadosa exploración clínica junto a un buen estudio neurofisiológico bien dirigido incrementa la eficiencia diagnóstica en términos de pacientes correctamente diagnosticados en el SDC. La liberación del Ligamento Transverso del Carpo está indicada en determinados pacientes que cumplen unos criterios de inclusión y exclusión específicos. Los resultados demuestran que la liberación del canal carpiano en esa población diana específica, es capaz de mejorar la gravedad de los síntomas de manera similar a la población afecta de Síndrome del Túnel Carpiano y de manera casi similar, a nivel de la Discapacidad de MMSS. Sólo instrumentos genéricos, como el SF-36, han sido capaces de detectar la diferencia a nivel de ciertas dimensiones de la Salud en relación a la Calidad de Vida entre los resultados del tratamiento en SDC y STC.
Anterior Skull Base Reconstruction: Does Fat Preparation Matter?
Authors: Wood Joshua , Densky Jaron , Boughter John , Sebelik Merry , Shires Courtney
Published: May 2018

Objectives This article aims (1) to determine whether there is any difference in cerebrospinal fluid (CSF) leak rate after anterior skull base autologous fat reconstruction based on how the fat is prepared, and (2) to measure impact on surgical times by reconstruction type.

Design Translational animal model surgical technique 3-arm trial, comparing two different methods of autologous fat skull base reconstruction versus a nonreconstructed control group.

Setting Animal study.

Subjects Adult Sprague-Dawley rats.

Main Outcome Measures Resolution of CSF rhinorrhea after repair of a surgically created anterior skull base defect.

Results Both wet (uncompressed) and dry (compressed) fat reconstruction of an anterior skull base defect demonstrated lower CSF leak rates than nonreconstructed defects. Dry fat reconstruction achieved significance in superiority of controlling CSF leak over no reconstruction (64% success vs. 31%); while wet fat reconstruction trended toward significance (50% vs. 31%). Reconstruction procedure time was longer than nonreconstructed controls, but there was no significant difference between type of fat preparation in surgical time.

Conclusions This study demonstrates that drying and compressing the fat graft improves autologous fat reconstruction success for anterior skull base defects, and does not add significantly to surgical time over nonprepared fat.
Correction: Interior spaces as traces in Balzac’s La Comédie humaine
Authors: Bauer Dominique
Published: May 2018

Correction to: Palgrave Communications (2017) 3, Article number: 17043 doi: 10.1057/palcomms.2017.43; Published 1 Jun 2017; Updated 11 May 2017 In the section entitled “A modern sense of historicity. The lost past and its recuperation” in the last paragraph the sentence, “In the same context, Mistral’s Museon Arlaten sheltered the very last cabane of Salin-de-Giraud (Galtier, 1977: 17–18), thus preserving objects and buildings in situ, in their material, tangible place.
Quantum localisation on the circle
Authors: Fresneda Rodrigo , Gazeau Jean Pierre , Noguera Diego
Published: May 2018

Covariant integral quantisation using coherent states for semi-direct product groups is implemented for the motion of a particle on the circle. In this case, the phase space is the cylinder, which is viewed as a left coset of the Euclidean group E(2). Coherent states issued from fiducial vectors are labeled by points in the cylinder and depend also on extra parameters. We carry out the corresponding quantisations of the basic classical observables, particularly the angular momentum and the 2π-periodic discontinuous angle function. We compute their corresponding lower symbols. The quantum localisation on the circle is examined through the properties of the angle operator yielded by our procedure, its spectrum and lower symbol, its commutator with the quantum angular momentum, and the resulting Heisenberg inequality. Comparison with other approaches to the long-standing question of the quantum angle is discussed.
Cu doped diamond: Effect of charge state and defect aggregation on spin interactions in a 3d transition metal doped wide band-gap semiconductor
Authors: Benecha E. M. , Lombardi E. B.
Published: May 2018

We present a first principles study of Cu in diamond using DFT+U electronic structure methods, by carefully considering the impact of co-doping, charge state, and Fermi level position on its stability, lattice location, spin states, and electronic properties. We show that the energetic stability and spin states of Cu are strongly dependent on the Fermi level position and the type of diamond co-doping, with Cu being energetically more favorable in n-type or p-type co-doped diamond compared to intrinsic diamond. Since Cu has been predicted to order magnetically in a number of other wide band-gap semiconductors, we have also evaluated this possibility for Cu doped diamond. We show that while Cu exhibits strong spin interactions at specific interatomic separations in diamond, a detailed consideration of the impact of Fermi level position and Cu aggregation precludes magnetic ordering, with Cu forming non-magnetic, antiferromagnetic, or paramagnetic clusters. These results have important implications in the understanding of the properties of transition metal dopants in diamond for device applications.
Extending the validation of multi-mode model for anomalous transport to high beta poloidal tokamak scenario in DIII-D
Authors: Pankin A. Y. , Kritz A. H. , Rafiq T. , Garofalo A. M. , Holod I. , Weiland J.
Published: May 2018

The Multi-Mode Model (MMM7.1) for anomalous transport is tested in predictive modeling of temperature profiles of a high beta poloidal DIII-D discharge. This new H-mode plasma regime, with high beta poloidal and high bootstrap currents, has been studied in DIII-D tokamak discharges [A. Garofalo et al., Nucl. Fusion 55, 123025 (2015)]. The role of instabilities that can drive the anomalous transport described by MMM7.1 is investigated. The temperature profiles for a high beta poloidal DIII-D discharge are computed using the NCLASS model for the neoclassical transport and the Weiland and Electron Temperature Gradient (ETG) components of the MMM7.1 model for the anomalous transport. The neoclassical transport is found to be the main contributor to the ion thermal transport in the plasma core. The contributions from the ion temperature gradient driven modes are found to be important only outside of the internal transport barrier. The magnitudes of the predicted temperature profiles are found to be in a reasonable agreement with experimental profiles. The simulation results approximately reproduce the internal transport barrier in the ion temperature profile but not in the electron temperature profile due to a weak dependence of the ETG driven transport on the Shafranov shift in the ETG component of MMM7.1. Possible effects that can contribute to stabilization of these modes, for example, effects associated with the large beta poloidal such as the Shafranov shift stabilization in the MMM7.1 model, are discussed. It is demonstrated that the E × B flow shear has a relatively small effect in the formation of the internal transport barrier in the high beta poloidal DIII-D discharge 154406. The Shafranov shift (alpha stabilization) and small or reversed magnetic shear profiles are found to be the primary reasons for quenched anomalous transport in this discharge.
PT-symmetric eigenvalues for homogeneous potentials
Authors: Eremenko Alexandre , Gabrielov Andrei
Published: May 2018

We consider one-dimensional Schrödinger equations with potential x2M(ix)ε, where M ≥ 1 is an integer and ε is real, under appropriate parity and time (PT)-symmetric boundary conditions. We prove the phenomenon which was discovered by Bender and Boettcher by numerical computation: as ε changes, the real spectrum suddenly becomes non-real in the sense that all but finitely many eigenvalues become non-real. We find the limit arguments of these non-real eigenvalues E as E → ∞.
Laser-driven strong magnetostatic fields with applications to charged beam transport and magnetized high energy-density physics
Authors: Santos J. J. , Bailly-Grandvaux M. , Ehret M. , Arefiev A. V. , Batani D. , Beg F. N. , Calisti A. , Ferri S. , Florido R. , Forestier-Colleoni P. , Fujioka S. , Gigosos M. A. , Giuffrida L. , Gremillet L. , Honrubia J. J. , Kojima S. , Korneev Ph. , Law K. F. F. , Marquès J.-R. , Morace A. , Mossé C. , Peyrusse O. , Rose S. , Roth M. , Sakata S. , Schaumann G. , Suzuki-Vidal F. , Tikhonchuk V. T. , Toncian T. , Woolsey N. , Zhang Z.
Published: May 2018

Powerful nanosecond laser-plasma processes are explored to generate discharge currents of a few 100 kA in coil targets, yielding magnetostatic fields (B-fields) in excess of 0.5 kT. The quasi-static currents are provided from hot electron ejection from the laser-irradiated surface. According to our model, which describes the evolution of the discharge current, the major control parameter is the laser irradiance Ilasλlas2. The space-time evolution of the B-fields is experimentally characterized by high-frequency bandwidth B-dot probes and proton-deflectometry measurements. The magnetic pulses, of ns-scale, are long enough to magnetize secondary targets through resistive diffusion. We applied it in experiments of laser-generated relativistic electron transport through solid dielectric targets, yielding an unprecedented 5-fold enhancement of the energy-density flux at 60 μm depth, compared to unmagnetized transport conditions. These studies pave the ground for magnetized high-energy density physics investigations, related to laser-generated secondary sources of radiation and/or high-energy particles and their transport, to high-gain fusion energy schemes, and to laboratory astrophysics.
Interface trapping in (2¯01) β-Ga2O3 MOS capacitors with deposited dielectrics
Authors: Jayawardena Asanka , Ramamurthy Rahul P. , Ahyi Ayayi C. , Morisette Dallas , Dhar Sarit
Published: May 2018

The electrical properties of interfaces and the impact of post-deposition annealing have been investigated in gate oxides formed by low pressure chemical vapor deposition (LPCVD SiO2) and atomic layer deposition (Al2O3) on (2¯01) oriented n-type β-Ga2O3 single crystals. Capacitance-voltage based methods have been used to extract the interface state densities, including densities of slow ‘border’ traps at the dielectric-Ga2O3 interfaces. It was observed that SiO2-β-Ga2O3 has a higher interface and border trap density than the Al2O3-β-Ga2O3. An increase in shallow interface states was also observed at the Al2O3-β-Ga2O3 interface after post-deposition annealing at higher temperature suggesting the high temperature annealing to be detrimental for Al2O3-Ga2O3 interfaces. Among the different dielectrics studied, LPCVD SiO2 was found to have the lowest dielectric leakage and the highest breakdown field, consistent with a higher conduction band-offset. These results are important for the processing of high performance β-Ga2O3 MOS devices as these factors will critically impact channel transport, threshold voltage stability, and device reliability.
Determination of oxygen vacancy limit in Mn substituted yttria stabilized zirconia
Authors: Stępień Joanna , Sikora Marcin , Kapusta Czesław , Pomykalska Daria , Bućko Mirosław M.
Published: May 2018

A series of Mnx(Y0.148Zr0.852)1−xO2−δ ceramics was systematically studied by means of X-ray absorption spectroscopy (XAS) and X-ray emission spectroscopy (XES) and DC magnetic susceptibility. The XAS and XES results show the changes in manganese oxidation state and a gradual evolution of the local atomic environment around Mn ions upon increasing dopant contents, which is due to structural relaxation caused by the growing amount of oxygen vacancies. Magnetic susceptibility measurements reveal that Mn3O4 precipitates are formed for x ≥ 0.1 and enable independent determination of the actual quantity of Mn ions dissolved in Yttria Stabilized Zirconia (YSZ) solid solution. We show that the amount of oxygen vacancies generated by manganese doping into YSZ is limited to ∼0.17 per formula unit.
Particle in cell simulation on plasma grating contrast enhancement induced by infrared laser pulse
Authors: Li M. , Yuan T. , Xu Y. X. , Wang J. X. , Luo S. N.
Published: May 2018

The dynamics of plasma grating contrast enhancement (PGCE) irradiated by an infrared laser pulse is investigated with one dimensional particle-in-cell simulation where field ionization and impact ionization are simultaneously considered for the first time. The numeric results show that the impact ionization dominates the PGCE process. Upon the interaction with the laser pulse, abundant free electrons are efficiently accelerated and subsequently triggered massive impact ionizations in the density ridges of the plasma grating for the higher local plasma energy density, which efficiently enhances the grating contrast. Besides the dynamic analysis of PGCE, we explore the parameter space of the incident infrared laser pulse to optimize the PGCE effect, which can provide useful guidance to experiments related to laser-plasma-grating interactions and may find applications in prolonging the duration of the plasma grating.
Source-to-accelerator quadrupole matching section for a compact linear accelerator
Authors: Seidl P. A. , Persaud A. , Ghiorso W. , Ji Q. , Waldron W. L. , Lal A. , Vinayakumar K. B. , Schenkel T.
Published: May 2018

Recently, we presented a new approach for a compact radio-frequency (RF) accelerator structure and demonstrated the functionality of the individual components: acceleration units and focusing elements. In this paper, we combine these units to form a working accelerator structure: a matching section between the ion source extraction grids and the RF-acceleration unit and electrostatic focusing quadrupoles between successive acceleration units. The matching section consists of six electrostatic quadrupoles (ESQs) fabricated using 3D-printing techniques. The matching section enables us to capture more beam current and to match the beam envelope to conditions for stable transport in an acceleration lattice. We present data from an integrated accelerator consisting of the source, matching section, and an ESQ doublet sandwiched between two RF-acceleration units.