bluuebunny/crossref_metadata_2025 huggingface dataset:
East Eurasian ancestry in the middle of Europe: genetic footprints of Steppe nomads in the genomes of Belarusian Lipka Tatars
Authors: Pankratov Vasili , Litvinov Sergei , Kassian Alexei , Shulhin Dzmitry , Tchebotarev Lieve , Yunusbayev Bayazit , Möls Märt , Sahakyan Hovhannes , Yepiskoposyan Levon , Rootsi Siiri , Metspalu Ene , Golubenko Maria , Ekomasova Natalia , Akhatova Farida , Khusnutdinova Elza , Heyer Evelyne , Endicott Phillip , Derenko Miroslava , Malyarchuk Boris , Metspalu Mait , Davydenko Oleg , Villems Richard , Kushniarevich Alena
Published: July 2016

Medieval era encounters of nomadic groups of the Eurasian Steppe and largely sedentary East Europeans had a variety of demographic and cultural consequences. Amongst these outcomes was the emergence of the Lipka Tatars—a Slavic-speaking Sunni-Muslim minority residing in modern Belarus, Lithuania and Poland, whose ancestors arrived in these territories via several migration waves, mainly from the Golden Horde. Our results show that Belarusian Lipka Tatars share a substantial part of their gene pool with Europeans as indicated by their Y-chromosomal, mitochondrial and autosomal DNA variation. Nevertheless, Belarusian Lipkas still retain a strong genetic signal of their nomadic ancestry, witnessed by the presence of common Y-chromosomal and mitochondrial DNA variants as well as autosomal segments identical by descent between Lipkas and East Eurasians from temperate and northern regions. Hence, we document Lipka Tatars as a unique example of former Medieval migrants into Central Europe, who became sedentary, changed language to Slavic, yet preserved their faith and retained, both uni- and bi-parentally, a clear genetic echo of a complex population interplay throughout the Eurasian Steppe Belt, extending from Central Europe to northern China.
Infectivity, effects on helper viruses and whitefly transmission of the deltasatellites associated with sweepoviruses (genus Begomovirus, family Geminiviridae)
Authors: Hassan Ishtiaq , Orílio Anelise F. , Fiallo-Olivé Elvira , Briddon Rob W. , Navas-Castillo Jesús
Published: July 2016

Begomoviruses (family Geminiviridae) are whitefly-transmitted viruses with single-stranded DNA genomes that are frequently associated with DNA satellites. These satellites include non-coding satellites, for which the name deltasatellites has been proposed. Although the first deltasatellite was identified in the late 1990s, little is known about the effects they have on infections of their helper begomoviruses. Recently a group of deltasatellites were identified associated with sweepoviruses, a group of phylogenetically distinct begomoviruses that infect plants of the family Convolvulaceae including sweet potato. In this work, the deltasatellites associated with sweepoviruses are shown to be transreplicated and maintained in plants by the virus with which they were identified, sweet potato leaf curl virus (SPLCV). These deltasatellites were shown generally to reduce symptom severity of the virus infection by reducing virus DNA levels. Additionally they were shown to be maintained in plants, and reduce the symptoms induced by two Old World monopartite begomoviruses, tomato yellow leaf curl virus and tomato yellow leaf curl Sardinia virus. Finally one of the satellites was shown to be transmitted plant-to-plant in the presence of SPLCV by the whitefly vector of the virus, Bemisia tabaci, being the first time a deltasatellite has been shown to be insect transmitted.
Protective effect of epigallocatechin-3-gallate (EGCG) via Nrf2 pathway against oxalate-induced epithelial mesenchymal transition (EMT) of renal tubular cells
Authors: Kanlaya Rattiyaporn , Khamchun Supaporn , Kapincharanon Chompunoot , Thongboonkerd Visith
Published: July 2016

This study evaluated effect of oxalate on epithelial mesenchymal transition (EMT) and potential anti-fibrotic property of epigallocatechin-3-gallate (EGCG). MDCK renal tubular cells were incubated with 0.5 mM sodium oxalate for 24-h with/without 1-h pretreatment with 25 μM EGCG. Microscopic examination, immunoblotting and immunofluorescence staining revealed that oxalate-treated cells gained mesenchymal phenotypes by fibroblast-like morphological change and increasing expression of vimentin and fibronectin, while levels of epithelial markers (E-cadherin, occludin, cytokeratin and ZO-1) were decreased. EGCG pretreatment could prevent all these changes and molecular mechanisms underlying the prevention by EGCG were most likely due to reduced production of intracellular ROS through activation of Nrf2 signaling and increased catalase anti-oxidant enzyme. Knockdown of Nrf2 by small interfering RNA (siRNA) abrogated all the effects of EGCG, confirming that the EGCG protection against oxalate-induced EMT was mediated via Nrf2. Taken together, our data indicate that oxalate turned on EMT of renal tubular cells that could be prevented by EGCG via Nrf2 pathway. These findings also shed light onto development of novel therapeutics or preventive strategies of renal fibrosis in the future.
Somatotopic Map and Inter- and Intra-Digit Distance in Brodmann Area 2 by Pressure Stimulation
Authors: Choi Mi-Hyun , Kim Sung-Phil , Kim Hyung-Sik , Gim Seon-Young , Kim Woo-Ram , Mun Kyung-Ryul , Lim Dae-Woon , Lee Bongsoo , Chung Soon-Cheol
Published: July 2016

The somatotopic representation of the tactile stimulation on the finger in the brain is an essential part of understanding the human somatosensory system as well as rehabilitation and other clinical therapies. Many studies have used vibrotactile stimulations and reported finger somatotopic representations in the Brodmann area 3 (BA 3). On the contrary, few studies investigated finger somatotopic representation using pressure stimulations. Therefore, the present study aimed to find a comprehensive somatotopic representation (somatotopic map and inter- and intra-digit distance) within BA 2 of humans that could describe tactile stimulations on different joints across the fingers by applying pressure stimulation to three joints-the first (p1), second (p2), and third (p3) joints-of four fingers (index, middle, ring, and little finger). Significant differences were observed in the inter-digit distance between the first joints (p1) of the index and little fingers, and between the third joints (p3) of the index and little fingers. In addition, a significant difference was observed in the intra-digit distance between p1 and p3 of the little finger. This study suggests that a somatotopic map and inter- and intra-digit distance could be found in BA 2 in response to pressure stimulation on finger joints.
Age-specific genetic and antigenic variations of influenza A viruses in Hong Kong, 2013–2014
Authors: Cao Peihua , Wong Chit-Ming , Chan Kwok-Hung , Wang Xiling , Chan King-Pan , Peiris Joseph Sriyal Malik , Poon Leo Lit-Man , Yang Lin
Published: July 2016

Age-specific genetic and antigenic variations of influenza viruses have not been documented in tropical and subtropical regions. We implemented a systematic surveillance program in two tertiary hospitals in Hong Kong Island, to collect 112 A(H1N1)pdm09 and 254 A(H3N2) positive specimens from 2013 to 2014. Of these, 56 and 72 were identified as genetic variants of the WHO recommended vaccine composition strains, respectively. A subset of these genetic variants was selected for hemagglutination-inhibition (HI) tests, but none appeared to be antigenic variants of the vaccine composition strains. We also found that genetic and antigenicity variations were similar across sex and age groups of ≤18 yrs, 18 to 65 yrs, and ≥65 yrs. Our findings suggest that none of the age groups led other age groups in genetic evolution of influenza virus A strains. Future studies from different regions and longer study periods are needed to further investigate the age and sex heterogeneity of influenza viruses.
Differential roles of the dorsal prefrontal and posterior parietal cortices in visual search: a TMS study
Authors: Yan Yulong , Wei Rizhen , Zhang Qian , Jin Zhenlan , Li Ling
Published: July 2016

Although previous studies have shown that fronto-parietal attentional networks play a crucial role in bottom-up and top-down processes, the relative contribution of the frontal and parietal cortices to these processes remains elusive. Here we used transcranial magnetic stimulation (TMS) to interfere with the activity of the right dorsal prefrontal cortex (DLPFC) or the right posterior parietal cortex (PPC), immediately prior to the onset of the visual search display. Participants searched a target defined by color and orientation in “pop-out” or “search” condition. Repetitive TMS was applied to either the right DLPFC or the right PPC on different days. Performance was evaluated at baseline (no TMS), during TMS and after TMS (Post-session). RTs were prolonged when TMS was applied over the DLPFC in the search, but not in the pop-out condition, relative to the baseline session. In comparison, TMS over the PPC prolonged RTs in the pop-out condition and when the target appeared in the left visual field for the search condition. Taken together these findings provide evidence for a differential role of DLPFC and PPC in the visual search, indicating that DLPFC has a specific involvement in the “search” condition, while PPC is mainly involved in detecting “pop-out” targets.
In situ eNOS/NO up-regulation—a simple and effective therapeutic strategy for diabetic skin ulcer
Authors: Yang Ye , Yin Dengke , Wang Fei , Hou Ziyan , Fang Zhaohui
Published: July 2016

Decreased nitric oxide (NO) synthesis and increased NO consumption in diabetes induces the inadequate blood flow to tissues that is primarily responsible for the pathogenesis and refractoriness of diabetic skin ulcers. The present study proposed a simple and effective therapeutic strategy for diabetic skin ulcers—in situ up-regulation of endothelial nitric oxide synthase (eNOS) expression and NO synthesis by statin-loaded tissue engineering scaffold (TES). In vitro experiments on human umbilical vein endothelial cells indicated that the statin-loaded TES relieved the high-glucose induced decrease in cell viability and promoted NO synthesis under high-glucose conditions. In a rat model of diabetes, the statin-loaded TES promoted eNOS expression and NO synthesis in/around the regenerated tissues. Subsequently, accelerated vascularization and elevated blood supply were observed, followed by rapid wound healing. These findings suggest that the in situ up-regulation of eNOS/NO by a statin-loaded TES may be a useful therapeutic method for intractable diabetic skin wounds.
Enhancement of recombination process using silver and graphene quantum dot embedded intermediate layer for efficient organic tandem cells
Authors: Ho Nhu Thuy , Tien Huynh Ngoc , Jang Se-Joeng , Senthilkumar Velusamy , Park Yun Chang , Cho Shinuk , Kim Yong Soo
Published: July 2016

High performance of organic tandem solar cell is largely dependent on transparent and conductive intermediate layer (IML). The current work reports the design and fabrication of an IML using a simple solution process. The efficiency of a homo-tandem device with poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester as an active layer and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/poly(ethylenimine) as an IML was initially found to be 3.40%. Further enhancement of the cell efficiency was achieved using silver nanoparticles (Ag-NPs) of different sizes and graphene quantum dot embedded IML. A maximum efficiency of 4.03% was achieved using 7 nm Ag-NPs that contribute to a better recombination process. Also, the performance of the tandem cell was solely based on the electrical improvements indicated by the current - voltage measurements, external quantum efficiency and impedance analysis. The use of Ag-NPs in the IML has been shown to lengthen the life time of electron-hole pairs in the device. This study thus paves way to develop such efficient IMLs for more efficient tandem solar cells.
Correction: Corrigendum: Evolved resistance to colistin and its loss due to genetic reversion in Pseudomonas aeruginosa
Authors: Lee Ji-Young , Park Young Kyoung , Chung Eun Seon , Na In Young , Ko Kwan Soo
Published: July 2016

Scientific Reports 6: Article number: 25543; published online: 06 May 2016; updated: 25 July 2016 In this Article, the amino acid sequences for strain P5R have been omitted from Figure 3A. The correct Figure 3A appears below as Figure 1.
A novel algorithm for detecting multiple covariance and clustering of biological sequences
Authors: Shen Wei , Li Yan
Published: July 2016

Single genetic mutations are always followed by a set of compensatory mutations. Thus, multiple changes commonly occur in biological sequences and play crucial roles in maintaining conformational and functional stability. Although many methods are available to detect single mutations or covariant pairs, detecting non-synchronous multiple changes at different sites in sequences remains challenging. Here, we develop a novel algorithm, named Fastcov, to identify multiple correlated changes in biological sequences using an independent pair model followed by a tandem model of site-residue elements based on inter-restriction thinking. Fastcov performed exceptionally well at harvesting co-pairs and detecting multiple covariant patterns. By 10-fold cross-validation using datasets of different scales, the characteristic patterns successfully classified the sequences into target groups with an accuracy of greater than 98%. Moreover, we demonstrated that the multiple covariant patterns represent co-evolutionary modes corresponding to the phylogenetic tree and provide a new understanding of protein structural stability. In contrast to other methods, Fastcov provides not only a reliable and effective approach to identify covariant pairs but also more powerful functions, including multiple covariance detection and sequence classification, that are most useful for studying the point and compensatory mutations caused by natural selection, drug induction, environmental pressure, etc.
Demonstration of quantum synchronization based on second-order quantum coherence of entangled photons
Authors: Quan Runai , Zhai Yiwei , Wang Mengmeng , Hou Feiyan , Wang Shaofeng , Xiang Xiao , Liu Tao , Zhang Shougang , Dong Ruifang
Published: July 2016

Based on the second-order quantum interference between frequency entangled photons that are generated by parametric down conversion, a quantum strategic algorithm for synchronizing two spatially separated clocks has been recently presented. In the reference frame of a Hong-Ou-Mandel (HOM) interferometer, photon correlations are used to define simultaneous events. Once the HOM interferometer is balanced by use of an adjustable optical delay in one arm, arrival times of simulta- neously generated photons are recorded by each clock. The clock offset is determined by correlation measurement of the recorded arrival times. Utilizing this algorithm, we demonstrate a proof-of-principle experiment for synchronizing two clocks separated by 4 km fiber link. A minimum timing stability of 0.44 ps at averaging time of 16000 s is achieved with an absolute time accuracy of 73.2 ps. The timing stability is verified to be limited by the correlation measurement device and ideally can be better than 10 fs. Such results shine a light to the application of quantum clock synchronization in the real high-accuracy timing system.
Taming hazardous chemistry by continuous flow technology
Authors: Movsisyan M. , Delbeke E. I. P. , Berton J. K. E. T. , Battilocchio C. , Ley S. V. , Stevens C. V.
Published: July 2016

Flow chemistry allows chemists to tackle unexploited challenges, with the ultimate objective making chemistry more accessible for laboratory and industrial applications, avoiding the need to store and handle toxic, reactive and explosive reagents. This review covers the latest and most relevant developments in the field of continuous flow chemistry.
Enzymatic conversion of magnetic nanoparticles to a non-magnetic precipitate: a new approach to magnetic sensing
Authors: Kolhatkar Arati G. , Jamison Andrew C. , Nekrashevich Ivan , Kourentzi Katerina , Litvinov Dmitri , Brazdeikis Audrius , Willson Richard C. , Randall Lee T.
Published: July 2016

Magnetic sensing utilizes loss of signal via enzymatic transformation of magnetic nanoparticles (MNPs).
Kinetic trapping – a strategy for directing the self-assembly of unique functional nanostructures
Authors: Yan Yun , Huang Jianbin , Tang Ben Zhong
Published: July 2016

Kinetic trappingviasupramolecular approaches or physical processing pathways can be an efficient strategy for directing functional molecular self-assemblies.
Gold-catalysed cross-coupling between aryldiazonium salts and arylboronic acids: probing the usefulness of photoredox conditions
Authors: Cornilleau Thomas , Hermange Philippe , Fouquet Eric
Published: July 2016

Combining gold catalysis and photoredox processes allowed the synthesis of biaryl compounds from diazonium salts and boronic acids under mild conditions.
Pd-Catalyzed oxidative isomerization of propargylic acetates: highly efficient access to α-acetoxyenones via alkenyl Csp2–O bond-forming reductive elimination from PdIV
Authors: Li Jun , Yang Wenjie , Yan Fachao , Liu Qing , Wang Ping , Li Yueyun , Zhao Yi , Dong Yunhui , Liu Hui
Published: July 2016

A Pd(ii)/(iv)-catalyzed oxidative isomerization of propargylic acetates developed for the synthesis of polysubstituted alkenyl acetates is described.
Nanodiamonds: a critical component of anodes for high performance lithium-ion batteries
Authors: Song Yanpeng , Li Hongdong , Wang Liying , Qiu Dongchao , Ma Yibo , Pei Kai , Zou Guangtian , Yu Kaifeng
Published: July 2016

Detonation nanodiamonds (DNDs) are deposited on graphene nanosheets (GNSs) to form a hybrid DND/GNS anode material for improving the performance of lithium ion batteries with a high lithium storage capacity and excellent cycling performance and stability.
Tuning cation-binding selectivity and capacity via side chain-dependent molecular packing in the solid state
Authors: Shen Jie , Ren Changliang , Zeng Huaqiang
Published: July 2016

Cavity-containing macrocycles assemble, via side chain-dependent molecular packing, into various nanostructures able to bind cations in varying selectivities and capacities.
A novel transformation route from PbS to CH3NH3PbI3 for fabricating curved and large-area perovskite films
Authors: Luo Paifeng , Zhou Shengwen , Liu Zhaofan , Xia Wei , Sun Lin , Cheng Jigui , Xu Chenxi , Lu Yingwei
Published: July 2016

We present a new transformation route from PbS to CH3NH3PbI3 for the facile preparation of perovskites with all kinds of shapes via vapor-assisted chemical bath deposition (VACBD). As such, curved and large-area CH3NH3PbI3 films with high quality are successfully achieved, which are suitable for the manufacturing scale-up of perovskite solar cells.
Synthesis, color-tunable emission, thermal stability, luminescence and energy transfer of Sm3+and Eu3+single-doped M3Tb(BO3)3(M = Sr and Ba) phosphors
Authors: Tian Miaomiao , Li Panlai , Wang Zhijun , Teng Xiaoyun , Li Zhenling , Cheng Jinge , Sun Yuansheng , Wang Chao , Yang Zhiping
Published: July 2016

A series of new tunable-emission phosphors of Sm3+and Eu3+single-doped M3Tb(BO3)3(M = Sr and Ba) phosphors were synthesized by the solid-state reaction.
C-terminal tail insertion of Bcl-xL in membrane occurs via partial unfolding and refolding cycle associating microsolvation
Authors: Maity Atanu , Sinha Souvik , Ganguly Debabani , Ghosh Dastidar Shubhra
Published: July 2016

Insertion of the Bcl-xL C-terminal into the mitochondrial outer membrane is found to be guided by the partial unfolding–refolding cycle, assisted by micro-solvation.
Spin-polarized transport in hydrogen-passivated graphene and silicene nanoribbons with magnetic transition-metal substituents
Authors: García-Fuente A. , Gallego L. J. , Vega A.
Published: July 2016

We present a systematic theoretical study of the electronic transport in hydrogen passivated zigzag graphene and silicene nanoribbons with between zero and four neighboring H atoms on one edge replaced by magnetic transition metals (Fe, Co, and Ni).
An in situ FTIR spectroscopic and thermogravimetric analysis study of the dehydration and dihydroxylation of SnO2: the contribution of the (100), (110) and (111) facets
Authors: Christensen P. A. , Attidekou P. S. , Egdell R. G. , Maneelok S. , Manning D. A. C.
Published: July 2016

Nanoparticulate SnO2 produced by a hydrothermal method was characterised by BET, XRD, TGA-MS and in situ variable temperature diffuse reflectance infra red spectroscopy (DRIFTS) to determine the surface behaviour of water.
Unraveling multiple binding modes of acridine orange to DNA using a multispectroscopic approach
Authors: Sayed Mhejabeen , Krishnamurthy Bhavana , Pal Haridas
Published: July 2016

The present study demonstrates the intriguing multiple binding modes of acridine orange to DNA using multispectroscopic techniques.
EPR studies of intermolecular interactions and competitive binding of drugs in a drug–BSA binding model
Authors: Akdogan Y. , Emrullahoglu M. , Tatlidil D. , Ucuncu M. , Cakan-Akdogan G.
Published: July 2016

EPR spectroscopy is a very promising technique to understand the details of drug binding and competitive drug binding to proteins.
The effect of phosphorus on the catalytic performance of nickel oxide in ethane oxidative dehydrogenation
Authors: Ivan Ştefan-Bogdan , Popescu Ionel , Fechete Ioana , Garin François , Pârvulescu Vasile I. , Marcu Ioan-Cezar
Published: July 2016

Adding P to NiO leads to a decrease of ethane conversion with an increase in ODH selectivity.
Recent advances in non-metal modification of graphitic carbon nitride for photocatalysis: a historic review
Authors: Zhou Li , Zhang Huayang , Sun Hongqi , Liu Shaomin , Tade Moses O. , Wang Shaobin , Jin Wanqin
Published: July 2016

This review provides a comprehensive survey and critical comments on the development of photocatalysts with a focus on the metal-free materials.
Solubility product difference-guided synthesis of Co3O4–CeO2 core–shell catalysts for CO oxidation
Authors: Chen Guozhu , Xu Qihui , Wang Yong , Song Guolong , Li Cuncheng , Zhao Wei , Fan Weiliu
Published: July 2016

Co3O4–CeO2 core–shell catalysts are successfully fabricated by an ion exchange procedure between Co(CO3)0.35Cl0.2(OH)1.1 nanorods and Ce3+ aqueous solution, followed by a calcination step.
Predicting skin permeation rate from nuclear magnetic resonance spectra
Authors: An Nan , Machado John-Hanson , Tang Yuechuan , Kostal Jakub , Voutchkova-Kostal Adelina
Published: July 2016

A predictive method is reported for estimating skin permeation of organic chemicals exclusively from NMR spectroscopic data and molecular weight, which does not require knowledge of chemical structure.
Coordination of signaling and tissue mechanics during morphogenesis of murine intestinal villi: a role for mitotic cell rounding
Authors: Freddo Andrew M. , Shoffner Suzanne K. , Shao Yue , Taniguchi Kenichiro , Grosse Ann S. , Guysinger Margaux N. , Wang Sha , Rudraraju Shiva , Margolis Benjamin , Garikipati Krishna , Schnell Santiago , Gumucio Deborah L.
Published: July 2016

Murine intestinal villi are rapidly demarcated by patterned intraepithelial forces that are induced by mesenchymal cell clusters and accelerated by cell division.
Implementing oxygen control in chip-based cell and tissue culture systems
Authors: Oomen Pieter E. , Skolimowski Maciej D. , Verpoorte Elisabeth
Published: July 2016

We review various approaches for monitoring and control of oxygen in microfluidic and organ-on-a-chip devices.
Biological processing of dinuclear ruthenium complexes in eukaryotic cells
Authors: Li Xin , Heimann Kirsten , Dinh Xuyen Thi , Keene F. Richard , Collins J. Grant
Published: July 2016

The biological processing, including the effect on the cytoplasmic membrane, of dinuclear polypyridylruthenium(ii) complexes has been examined in eukaryotic cells.
From haystack to needle: finding value with DNA encoded library technology at GSK
Authors: Arico-Muendel Christopher C.
Published: July 2016

Innovation incubation: DNA encoded library technology (ELT) was invented in academia and biotech, but came of age in a big pharma environment.
Biocatalytic approaches to a key building block for the anti-thrombotic agent ticagrelor
Authors: Hugentobler Katharina G. , Sharif Humera , Rasparini Marcello , Heath Rachel S. , Turner Nicholas J.
Published: July 2016

Three different enzymatic routes were employed to produce a precursor of the important antithrombotic agent Ticagrelor with high ee.
Tough and degradable photopolymers derived from alkyne monomers for 3D printing of biomedical materials
Authors: Oesterreicher Andreas , Wiener Johannes , Roth Meinhart , Moser Andreas , Gmeiner Robert , Edler Matthias , Pinter Gerald , Griesser Thomas
Published: July 2016

Photo curing of low-cytotoxic alkyne carbonate/thiol formulations leads to tough polymers with adjustable degradation behavior for 3D printing of biomedical devices.
Sodium iminoquinolates with cubic and hexagonal prismatic motifs: synthesis, characterization and their catalytic behavior toward the ROP of rac-lactide
Authors: Zhang Qiurui , Zhang Wenjuan , Wang Shengdong , Solan Gregory A. , Liang Tongling , Rajendran Natesan Mannangatti , Sun Wen-Hua
Published: July 2016

Sodium 2-arylimino-8-quinolates have been shown to adopt a variety of unusual multimetallic assemblies; all exhibit good activities towards the ROP of rac-lactide.
Silver-mediated oxidative annulation of N-arylthio succinimides with alkynes: direct access to benzo[b]thiophenes
Authors: Ramesh E. , Shankar Majji , Dana Suman , Sahoo Akhila K.
Published: July 2016

A convenient synthetic route to 2,3-diarylbenzo[b]thiophene derivatives via Ag-catalyzed intermolecular oxidative cyclization between bench-stable N-arylthio succinimides and unactivated internal alkynes is demonstrated herein.
Enhancement of photocatalytic decomposition of perfluorooctanoic acid on CeO2/In2O3
Authors: Jiang Fang , Zhao Haitao , Chen Huan , Xu Chenmin , Chen Jian
Published: July 2016

The xCeO2/In2O3 catalysts were synthesized and used for photocatalytic decomposition of PFOA. The excellent activity and stability was derived from inhibition of electron-holes recombination caused by the charge transfer between CeO2 and In2O3.
Green synthesis of carbon quantum dots from lemon peel waste: applications in sensing and photocatalysis
Authors: Tyagi Ankit , Tripathi Kumud Malika , Singh Narendra , Choudhary Shashank , Gupta Raju Kumar
Published: July 2016

Water soluble carbon quantum dots were synthesized from lemon peel waste and were used for Cr6+ detection and photocatalytic degradation of methylene blue dye.
Role of wide tip of mushroom-like micropillar arrays to make the Cassie state on superrepellent surfaces
Authors: Kang Seong Min
Published: July 2016

A structural secret of the wide-tip topology of mushroom-like re-entrant micropillar arrays for making superrepellent surfaces is revealed by experimental and theoretical analysis.
Effects of heavy metal ions on N-nitrosodimethylamine (NDMA) formation
Authors: Liu Yameng , Liu Yongdong , Zhong Rugang , Peng Bin , Schaefer, III Henry F.
Published: July 2016

The mechanism of NDMA formation as affected by heavy metal complexes [MONO]+ (M = Cd, Pb, Hg) was investigated using density functional theory (DFT). Three possible NDMA formation pathways are discussed.
Effects of chitin nanowhiskers on the thermal, barrier, mechanical, and rheological properties of polypropylene nanocomposites
Authors: Chi-Yan Li Sharon , Sun Yu-Chen , Guan Qi , Naguib Hani
Published: July 2016

Incorporation of chitin nanowhiskers into polypropylene shows improvements in both water barrier and mechanical properties.
Fabrication of a composite of nanocrystalline carbonated hydroxyapatite (cHAP) with polylactic acid (PLA) and its surface topographical structuring with direct laser writing (DLW)
Authors: Garskaite E. , Alinauskas L. , Drienovsky M. , Krajcovic J. , Cicka R. , Palcut M. , Jonusauskas L. , Malinauskas M. , Stankeviciute Z. , Kareiva A.
Published: July 2016

The fabrication of a polylactic acid (PLA)–carbonated hydroxyapatite (cHAP) composite material from synthesised phase pure nano-cHAP and melted PLA by mechanical mixing at 220–235 °C has been developed in this study.
A first-principle study of the effect of OH− doping on the elastic constants and electronic structure of HTB-FeF3
Authors: Yang Zhenhua , Zhang Zhijuan , Yuan Yalong , Huang Yunqing , Wang Xianyou , Chen Xiaoying , Wei Shuangying
Published: July 2016

FeF3 with a hexagonal-tungsten-bronze structure (HTB-FeF3) belongs to one type of promising cathode material for Li-ion batteries. HTB-FeF3−x(OH)x (x = 0.083, 0.167, 0.333, 0.667, 0.833) can stably exist in usual growth conditions.
Experimental and theoretical study of the electronic structure and optical spectral features of PbIn6Te10
Authors: Reshak A. H. , Parasyuk Oleg. V. , Kamarudin H. , Kityk I. V. , Alahmed Zeyad A. , AlZayed Nasser S. , Auluck Sushil , Fedorchuk Anatolii O. , Chyský J.
Published: July 2016

Laying of InTe4 tetrahedra in the structure of the compound PbIn6Te10.
pH-Assisted surface functionalization of selenium nanoparticles with curcumin to achieve enhanced cancer chemopreventive activity
Authors: Yu Shaoxuan , Wang Yanru , Zhang Wentao , Zhang Yuhuan , Zhu Wenxin , Liu Yingnan , Zhang Daohong , Wang Jianlong
Published: July 2016

A pH-assisted strategy is proposed for synthesizing curcumin-functionalized selenium nanoparticles (SeNPs@Cur), which well combine the advantages of SeNPs with those of Cur in cancer chemoprevention and overcome their limitations in application.
Biomimetic fabrication of biotinylated peptide nanostructures upon diatom scaffold; a plausible model for sustainable energy
Authors: Kumar Vikas , Gupta Shradhey , Rathod Avin , Vinayak Vandana , Joshi Khashti Ballabh
Published: July 2016

This study demonstrates the interaction of biotin–Trp–Trp peptide with diatoms. Such interaction afforded unique nanoarray over the diatom frustules thus can be used as most parsimonious model for the production of renewable energy.
Gamma irradiation induced synthesis of electromagnetic functionalized aligned CoxNi1−x alloy nanobundles
Authors: Zhao Hongtao , Li Zhigang , Zhang Nan , Du Yunchen , Xu Ping
Published: July 2016

Here we demonstrate the synthesis of aligned CoNi alloy nanobundles via a gamma irradiation induced technique with the assistance of an external magnetic field for microwave absorption applications.
Reactive cellulose-based thin films – a concept for multifunctional polysaccharide surfaces
Authors: Elschner Thomas , Reishofer David , Kargl Rupert , Grießer Thomas , Heinze Thomas , Kleinschek Karin Stana
Published: July 2016

Reactive coatings of hydroxyethyl cellulose furoate in the form of thin films, suitable for the covalent immobilization of functional molecules, were developed and characterized in this work.
Synthesis of cinchona alkaloid sulfonamide polymers as sustainable catalysts for the enantioselective desymmetrization of cyclic anhydrides
Authors: Takata Shohei , Endo Yuta , Shahid Ullah Mohammad , Itsuno Shinichi
Published: July 2016

Mizoroki–Heck polymerization of cinchona sulfonamide gave chiral polymers, which are active catalysts for enantioselective desymmetrization of cyclic anhydrides to give chiral hemiesters in high yield with high enantioselectivities.
Mild base-promoted benzannulation for the construction of polyfunctionalized m-terphenyl derivatives and their application as potent UV-filters
Authors: Tamargo Ramuel John Inductivo , Poudel Tej Narayan , Lee Yong Rok
Published: July 2016

An efficient and facile transition-metal-free benzannulation was developed for the construction of polyfunctionalized m-terphenyl derivatives.
Shell thickness effects on reconfiguration of NiOcore–Ptshellanodic catalysts in a high current density direct methanol fuel cell
Authors: Chen Tsan-Yao , Huang Po-Chun , Liao Yen-Fa , Liu Yu-Ting , Yeh Tsung-Kuang , Lin Tsang-Lang
Published: July 2016

The atomic restructure of a NiOcore–Ptshellcrystallite in long-term MOR for 7200 s.
Optimum nanoscale design in ferrite based nanoparticles for magnetic particle hyperthermia
Authors: Liébana-Viñas S. , Simeonidis K. , Wiedwald U. , Li Z.-A. , Ma Zh. , Myrovali E. , Makridis A. , Sakellari D. , Vourlias G. , Spasova M. , Farle M. , Angelakeris M.
Published: July 2016

The study demonstrates the multiplex enhancement of the magnetic hyperthermia response by nanoscale design and magnetism tuning without sparing the biocompatibility of iron-oxide.
Pickering emulsions stabilized by hydrophilic nanoparticles: in situ surface modification by oil
Authors: Binks Bernard P. , Yin Dezhong
Published: July 2016

We propose a novel route for the stabilization of oil-in-water Pickering emulsions using inherently hydrophilic nanoparticles.
Cyclized-polyacrylonitrile modified carbon nanofiber interlayers enabling strong trapping of polysulfides in lithium–sulfur batteries
Authors: Li Qing , Liu Ming , Qin Xianying , Wu Junxiong , Han Wenjie , Liang Gemeng , Zhou Dong , He Yan-Bing , Li Baohua , Kang Feiyu
Published: July 2016

A CP@CNF interlayer for lithium-sulfur batteries was fabricated by casting CPAN on the surface of CNFs using a facile dip-coating and subsequent thermal cyclization treatment.
Vapor-assisted crystallization control toward high performance perovskite photovoltaics with over 18% efficiency in the ambient atmosphere
Authors: Yin Jun , Qu Hui , Cao Jing , Tai Huiling , Li Jing , Zheng Nanfeng
Published: July 2016

An ambient atmosphere-compatible vapor-assisted deposition strategy was developed to fabricate high-quality perovskite films, even at a high relative humidity of 60%. By using the optimized crystallization process, efficient (η = 18.90%), air-stable photovoltaic performance was accomplished.
Computational studies on the structural, electronic and optical properties of graphene-like MXenes (M2CT2, M = Ti, Zr, Hf; T = O, F, OH) and their potential applications as visible-light driven photocatalysts
Authors: Zhang Haijun , Yang Guang , Zuo Xueqin , Tang Huaibao , Yang Qun , Li Guang
Published: July 2016

Our computational results suggest the great possibility of utilizing functionalized MXene materials as high-efficiency visible-light-driven photocatalysts.
Layered nickel metal–organic framework for high performance alkaline battery-supercapacitor hybrid devices
Authors: Jiao Yang , Pei Jian , Yan Chunshuang , Chen Dahong , Hu Yongyuan , Chen Gang
Published: July 2016

The synergistic effect between “Ni-MOF and Fe(CN)64−/Fe(CN)63−” can deliver high energy density and power density simultaneously.
One-pot, large-scale, simple synthesis of CoxP nanocatalysts for electrochemical hydrogen evolution
Authors: Tian Lihong , Yan Xiaodong , Chen Xuejiao , Liu Lei , Chen Xiaobo
Published: July 2016

We report a one-pot, large-scale (tens of grams), facile synthesis of cobalt phosphide (CoxP) nanoparticles with impressive HER activities.
An amorphous precursor route to the conformable oriented crystallization of CH3NH3PbBr3in mesoporous scaffolds: toward efficient and thermally stable carbon-based perovskite solar cells
Authors: Chen Haining , Zheng Xiaoli , Li Qiang , Yang Yinglong , Xiao Shuang , Hu Chen , Bai Yang , Zhang Teng , Wong Kam Sing , Yang Shihe
Published: July 2016

An amorphous Pb–Br precursor was employed to prepare high-quality CH3NH3PbBr3with conformable oriented crystallization.
Anti-phagocytosis and tumor cell targeting micelles prepared from multifunctional cell membrane mimetic polymers
Authors: Jiang Hai-Tao , Ding Kai , Meng Fan-Ning , Bao Li-Li , Chai Yu-Dong , Gong Yong-Kuan
Published: July 2016

“Stealthy bio-missile” kinds of micelles were fabricated for developing advanced anticancer formulations by cell membrane mimicking.
Bright and stable near-infrared Pluronic–silica nanoparticles as contrast agents for in vivo optical imaging
Authors: Yan Lesan , Wang Huiquan , Zhang Anqi , Zhao Calvin , Chen Yongping , Li Xingde
Published: July 2016

The IR780@NPs exhibited excellent characteristics for in vivo imaging with a long circulation time and high retention in tumor and sentinel lymph node.
Fabrication and biomedical applications of AIE active nanotheranostics through the combination of a ring-opening reaction and formation of dynamic hydrazones
Authors: Wan Qing , Zeng Guangjian , He Ziyang , Mao Liucheng , Liu Meiying , Huang Hongye , Deng Fengjie , Zhang Xiaoyong , Wei Yen
Published: July 2016

AIE active nanotheranostics were fabricated through a ring-opening reaction and formation of a dynamic hydrazone bond.
An in situ forming tissue adhesive based on poly(ethylene glycol)-dimethacrylate and thiolated chitosan through the Michael reaction
Authors: Zeng Zhiwen , Mo Xiu-mei , He Chuanglong , Morsi Yosry , El-Hamshary Hany , El-Newehy Mohamed
Published: July 2016

A novel tissue adhesive composed of CSS and PEGDMA based on the Michael addition reaction.
Facile green synthesis of calcium carbonate/folate porous hollow spheres for the targeted pH-responsive release of anticancer drugs
Authors: Guo Yuming , Jia Weili , Li Han , Shi Weike , Zhang Jie , Feng Jing , Yang Lin
Published: July 2016

Calcium carbonate/folate porous hollow spheres were prepared in a facile manner and used for the targeted delivery and pH-responsive sustained release of anticancer drugs.
Efficient ternary organic photovoltaic cells with better trade-off photon harvesting and phase separation by doping DIB-SQ
Authors: Wang Jian , Zhang Fujun , Xiao Jing , Li Feng , Zhang Miao , An Qiaoshi , Zhang Jian
Published: July 2016

Photon harvesting and phase separation can be synergistically optimized by doping appropriate DIB-SQ in donors, leading to PCE improvement from 5.52% to 6.18%.
Utilizing 9,10-dihydroacridine and pyrazine-containing donor–acceptor host materials for highly efficient red phosphorescent organic light-emitting diodes
Authors: Liu Xiang-Yang , Liang Feng , Yuan Yi , Jiang Zuo-Quan , Liao Liang-Sheng
Published: July 2016

Utilizing 9,10-dihydroacridine and pyrazine-containing donor–acceptor host materials for highly efficient red phosphorescent organic light-emitting diodes.
45 GHz stacked‐FET PA with linearising feed‐forward rectifier
Authors: Kim Y. , Lee S. , Kwon Y.
Published: July 2016

A 45 GHz stacked‐FET power amplifier (PA) using 0.15 μm pseudomorphic high electron mobility transistor is presented with feed‐forward rectifier bias topology for enhancing linearity. The proposed rectifier bias circuit provides the gate‐bias voltage which allows the stacked common‐gate FET in triple‐stacked FET to have linear operation at higher power compared with the conventional fixed gate‐bias circuit. It shows improvement in linearity effectively from measured results of gain compression and third‐order intermediation. Measurements are performed by on‐wafer probe station. The fabricated 45 GHz stacked‐FET PA exhibits an output power of 18 dBm, a transducer gain of 15 dB, and a power‐added efficiency as high as 9.5%.
Computationally efficient fixed complexity LLL algorithm for lattice‐reduction‐aided multiple‐input–multiple‐output precoding
Authors: Wang Wei , Hu Meixia , Li Yongzhao , Zhang Hailin , Li Zan
Published: July 2016

In multiple‐input–multiple‐output broadcast channels, lattice reduction (LR) preprocessing technique can significantly improve the precoding performance. Among the existing LR algorithms, the fixed complexity Lenstra–Lenstra–Lovasz (fcLLL) algorithm applying limited number of LLL loops is suitable for the real‐time communication system. However, fcLLL algorithm suffers from higher average complexity. Aiming at this problem, a computationally efficient fcLLL (CE‐fcLLL) algorithm for LR‐aided (LRA) precoding is developed in this study. First, the authors analyse the impact of fcLLL algorithm on the signal‐to‐noise ratio performance of LRA precoding by a power factor (PF) which is defined to measure the relation of reduced basis and transmit power of LRA precoding. Then, they propose a CE‐fcLLL algorithm by designing a new LLL loop and introducing new early termination conditions to reduce redundant and inefficient LR operation in fcLLL algorithm. Finally, they define a PF loss factor to optimise the PF threshold and the number of LLL loops, which can lead to a performance‐complexity tradeoff. Simulation results show that the proposed algorithm for LRA precoding can achieve better bit‐error‐rate performance than the fcLLL algorithm with remarkable complexity savings in the same upper complexity bound.
Analysis and evaluation of modular E‐shaped stator switched reluctance machines employing segmented and conventional rotor topologies
Authors: Ding Wen , Hu Yanfang , Fu Haigang , Chen Qingsong
Published: July 2016

Switched reluctance machines (SRMs) with modular or segmented structures normally have light weight, low cost, easily manufactured and improved fault‐tolerance capability. In this study, two novel three‐phase modular SRMs (MSRMs) with the same E‐shaped stator modules and different rotor topologies, namely, segmented rotor and conventional rotor are evaluated and compared. The basic machine topologies and simplified magnetic equivalent circuit (MEC) are presented first. The static electromagnetic characteristics of two MSRMs such as flux distribution, phase flux linkage and inductance, electromagnetic torque, and so on, are computed and compared by three‐dimensional finite‐element analysis. Then, the dynamic performances including steady state and transient operations of two MSRM drives are evaluated and compared. The corresponding predictions and comparisons indicate that the segmented rotor topology has less iron consumption, higher torque density and power density and lower torque ripple, which is preferred for the three‐phase MSRMs. Finally, two MSRM prototypes with segmented rotor and conventional rotor are manufactured and tested for experimental verification and comparison. The experimental results of static flux linkage, steady state and transient performances of two MSRM drives are presented and compared, which verify the analytical MEC model, finite element analysis and the corresponding predictions.
Determination of customer perceived reliability indices for active distribution systems including omission of tolerable interruption durations employing bootstrapping
Authors: Arya Rajesh
Published: July 2016

This study presents a novel methodology for evaluating customer and energy based reliability indices for distribution systems in the presence of distributed generations, considering the effect of omission of random tolerable interruption durations at load points. Bootstrapping technique along with Monte Carlo simulation has been employed to evaluate the impact of omission of random interruption durations on the customer and energy based indices. These indices have been evaluated with and without omission of interruption durations. Results have been obtained for a standard RBTS distribution system.
Magnetic core short circuit testing techniques for electrical power generators
Authors: Ramírez‐Niño Jose , Vega Octavio de la Torre , Pascacio Alberth , Mijarez Rito , Rodríguez–Rodríguez Joaquin H.
Published: July 2016

Power generators are exposed to high electrical, thermal and mechanical stresses during their operational life. Over time, this could lead to damages in the magnetic core isolation that can cause the formation of large eddy currents and local hot spots that gradually spread. Hence, it is recommended to regularly verify the isolation condition to avoid possible damage, which can lead to an unscheduled outage. This article analyses in detail the short circuit effects of magnetic core laminations of stators in power generators. The existing techniques for quantifying the size of the fault and its location are described. Advantages and disadvantages of these techniques for making maintenance decisions are established. Finally, experimental and finite element modelling results that illustrate the short‐circuit eddy current problem are presented and discussed.
Grid integration of 3P4W solar PV system using M‐LWDF‐based control technique
Authors: Singh Bhim , Kumar Shailendra
Published: July 2016

This study proposes a multitasking three‐phase four (3P4W) wire solar photovoltaic (SPV) system using a modified lattice wave digital filter (M‐LWDF)‐based control technique. For effective utilisation of SPV array, an incremental conductance‐based maximum power point tracking approach is used to obtain the peak power. However, M‐LWDF‐based control technique is used to control the grid tied 4‐leg voltage source converter. The proposed control technique with reduced computational burden is an analytical tool for extracting the harmonics free fundamental component of load current and the mitigation of load neutral current. The M‐LWDF‐based control technique is implemented under various working modes at non‐linear loads.
Effect of magnetic coupling between the mounting loops of two parallel capacitors on antiresonance
Authors: Kavungal Davis Anto
Published: July 2016

A microprocessor board comprises many capacitors in parallel for decoupling purposes. Due to space constraints, they are kept close to each other. When two capacitors with different self‐resonant frequencies are connected in parallel, between their self‐resonant frequencies an impedance peak known as antiresonance is introduced. If the capacitors are placed close to each other, their mounting loops are magnetically coupled. This coupling affects the antiresonance peak value, which is studied in this study. An expression for the peak value of antiresonance is derived using circuit theory, and it is compared with accurate solutions obtained in Matlab™. A general critical damping condition is formulated based on this. The expressions are validated with simulation and experimental studies. The obtained results will be useful for improving capacitor selection algorithms used in power distribution network design by incorporating the coupling effects into the constraints.
Robust H‐infinity CKF/KF hybrid filtering method for SINS alignment
Authors: Zhang Lei , Yang Chun , Chen Qingwei , Yan Fei
Published: July 2016

This study concerns the in‐motion alignment in the strapdown inertial navigation system (SINS) with large misalignment angles. As the non‐linear filtering method applied in the alignment model is quite computer intensive, which has a significant impact on the alignment accuracy and speed. To solve this problem, a robust H‐infinity cubature Kalman filter (CKF)/KF hybrid filter (RHCHF) is proposed to lower the computational burden and strengthen the robustness. By virtue of the idea of model decomposition, the RHCHF could estimate the non‐linear and linear parts of alignment model, respectively. Through the introduction of robust factor to adjust the filter parameters, it can ensure the accuracy reliably. The comparisons of the simulation and vehicle experiment demonstrate that the RHCHF could achieve the results at a significantly lower expense than the unscented Kalman filter, and obtain a high accuracy even when the statistical property of noise is uncertain or the outliers of measurement occur occasionally.
Dynamic initial coarse alignment of SINS for AUV using the velocity loci and pressure sensor
Authors: Yuan Dongyu , Ma Xiaochuan , Liu Yu , Hao Chengpeng , Zhu Yun
Published: July 2016

For the high‐speed and light autonomous underwater vehicle (AUV), it is moving freely, and the speed and attitude are in dynamic movement. Then, the traditional static and quasi‐static ground alignment cannot be used any more. Using the optimisation‐based alignment (OBA) scheme, this study presents a novel estimation method for fast initial coarse alignment of a AUV's strapdown inertial navigation system (SINS). The novel OBA method use the inertial measurement unit, the pressure sensor measurements and the navigational velocity νv in v‐frame produced by the motor thrust to solve the attitude estimation problem which is known as Wahba's problem. Unlike several current techniques, the presented estimation method is effective to any movement form. The simulation results show that the attitude determined by this novel method can meet the accuracy requirement of coarse alignment and it can be used as input for the fine alignment.