bluuebunny/crossref_metadata_2025 huggingface dataset:
HACE1 is a potential tumor suppressor in osteosarcoma
Authors: El-Naggar Amal M , Clarkson Paul W. , Negri Gian Luca , Turgu Busra , Zhang Fan , Anglesio Michael S. , Sorensen Poul H.
Published: January 2019

Osteosarcoma is a malignant bone sarcoma characterized by extensive genomic disruption and a propensity for metastatic spread. Osteoid production suggests a close relationship with normal osteoblasts, and the latter are the presumptive cell of origin of this disease. The HACE1 gene, localized to human chromosome 6q21, encodes the HACE1 HECT E3 ligase, a tumor suppressor in diverse tumors that acts in part by targeting the activated form of RAC1 GTPase for proteasomal degradation. Disruption or loss of 6q21 is relatively common in osteosarcomas, and Hace1−/−/Tp53+/− mice frequently develop osteosarcomas, in contrast to Tp53+/− mice, which do not. This suggests an unexplored link between HACE1 loss and osteosarcoma. Here we compared HACE1 expression in normal osteoblasts and osteosarcoma cell lines in vitro by western blotting and quantitative RT-PCR, and in human osteosarcoma specimens by immunohistochemistry. Both HACE1 transcript and protein levels were reduced in osteosarcoma compared to osteoblasts in vitro. Reduced HACE1 expression in osteosarcoma tumors was observed in 76% of cases and associated with high-grade lesions. Further, clonally derived pairs of high and low metastatic osteosarcoma cell lines showed significant downregulation in the high compared to corresponding low metastatic cells. Ectopic expression of HACE1 markedly inhibited anchorage-independent growth and cell motility of HACE1 osteosarcoma cell lines, and was associated with reduced RAC1 activation and decreased reactive oxygen species (ROS). Finally, HACE1 overexpression blocked osteosarcoma xenograft growth and dramatically reduced pulmonary metastases. These findings point to a potential tumor suppressor function for HACE1 in osteosarcoma.
Novel neuroblastoma amplified sequence (NBAS) mutations in a Japanese boy with fever-triggered recurrent acute liver failure
Authors: Ono Sahoko , Matsuda Junko , Watanabe Etsuko , Akaike Hiroto , Teranishi Hideto , Miyata Ippei , Otomo Takanobu , Sadahira Yoshito , Mizuochi Tatsuki , Kusano Hironori , Kage Masayoshi , Ueno Hiroo , Yoshida Kenichi , Shiraishi Yuichi , Chiba Kenichi , Tanaka Hiroko , Miyano Satoru , Ogawa Seishi , Hayashi Yasuhide , Kanegane Hirokazu , Ouchi Kazunobu
Published: January 2019

Biallelic mutations in the neuroblastoma amplified sequence (NBAS) gene have been reported to cause two different clinical spectra: short stature with optic nerve atrophy and Pelger-Huët anomaly (SOPH) syndrome and infantile liver failure syndrome 2 (ILFS2). Here, we describe a case of a 3-year-old Japanese boy who presented with fever-triggered recurrent acute liver failure (ALF). The clinical characteristics were considerable elevation of liver enzymes, severe coagulopathy, and acute renal failure. In addition to the liver phenotype, he had short stature and Pelger-Huët anomaly in the peripheral granulocytes. Whole-exome and Sanger sequencing of the patient and his parents revealed that he carried novel compound heterozygous missense mutations inNBAS, c.1018G>C (p.Gly340Arg) and c.2674 G>T (p.Val892Phe). Both mutations affect evolutionarily conserved amino acid residues and are predicted to be highly damaging. Immunoblot analysis of the patient’s skin fibroblasts showed a normal NBAS protein level but a reduced protein level of its interaction partner, p31, involved in Golgi-to-endoplasmic reticulum retrograde vesicular trafficking. We recommendNBASgene analysis in children with unexplained fever-triggered recurrent ALF or liver dysfunction. Early antipyretic therapy may prevent further episodes of ALF.
In situ atomistic observation of disconnection-mediated grain boundary migration
Authors: Zhu Qi , Cao Guang , Wang Jiangwei , Deng Chuang , Li Jixue , Zhang Ze , Mao Scott X.
Published: January 2019

Shear-coupled grain boundary (GB) migration is of general significance in the deformation of nanocrystalline and polycrystalline materials, but comprehensive understanding of the migration mechanism at the atomic scale remains largely lacking. Here, we systematically investigate the atomistic migration of Σ11(113) coherent GBs in gold bicrystals using a state-of-art in situ shear testing technique combined with molecular dynamic simulations. We show that shear-coupled GB migration can be realised by the lateral motion of layer-by-layer nucleated GB disconnections, where both single-layer and double-layer disconnections have important contributions to the GB migration through their frequent composition and decomposition. We further demonstrate that the disconnection-mediated GB migration is fully reversible in shear loading cycles. Such disconnection-mediated GB migration should represent a general deformation phenomenon in GBs with different structures in polycrystalline and nanocrystalline materials, where the triple junctions can act as effective nucleation sites of GB disconnections.
Author Correction: Probing the crystallographic orientation of two-dimensional atomic crystals with supramolecular self-assembly
Authors: Wang Jinghui , Yu Hongde , Zhou Xu , Liu Xiaozhi , Zhang Renjie , Lu Zhixing , Zheng Jingying , Gu Lin , Liu Kaihui , Wang Dong , Jiao Liying
Published: January 2019

The original version of this Article omitted the following from the Acknowledgements: ‘Beijing Municipal Science & Technology Commission (No Z161100002116030)’ This has now been corrected in both the PDF and HTML versions of the Article.
Author Correction: High-resolution bacterial 16S rRNA gene profile meta-analysis and biofilm status reveal common colorectal cancer consortia
Authors: Drewes Julia L. , White James R. , Dejea Christine M. , Fathi Payam , Iyadorai Thevambiga , Vadivelu Jamuna , Roslani April C. , Wick Elizabeth C. , Mongodin Emmanuel F. , Loke Mun Fai , Thulasi Kumar , Gan Han Ming , Goh Khean Lee , Chong Hoong Yin , Kumar Sandip , Wanyiri Jane W. , Sears Cynthia L.
Published: January 2019

In this Article, in the section entitled ‘Quantitative real-time PCR’ within the Supplementary Methods, the probe for the Bacteroides fragilis 16S real-time PCR reaction was listed incorrectly as 5ʹHEX-AGGGACTGGAAGGCTTTACTGCTTC-3ʹBHQ1. The correct probe for Bacteroides fragilis 16S should be listed as 5ʹHEX-ACACGTATCCAACCTGCCCTTTACTCG-3ʹBHQ1. The mistake was a result of a copy and paste error with a different primer set targeting a B. fragilis toxin gene. All qPCR reactions were performed using the correct probe, and therefore no data were affected.
Orientation, elastic interaction and magnetic response of asymmetric colloids in a nematic liquid crystal
Authors: Sahu Dinesh Kumar , Anjali Thriveni G. , Basavaraj Madivala G. , Aplinc Jure , Čopar Simon , Dhara Surajit
Published: January 2019

Colloidal particles in nematic liquid crystals create elastic distortion and experience long-range forces. The symmetry of elastic distortion and consequently the complexity of interaction strongly depends largely on the liquid crystal anchoring, topology and shape of the particles. Here, we introduce a new nematic colloidal system made of peanut-shaped hematite particles. We report experimental studies on spontaneous orientation, mutual interaction, laser assisted self-assembly and the effect of external magnetic fields on the colloids. Majority of the colloids spontaneously orient either parallel or perpendicular to the nematic director. The colloids that are oriented perpendicularly exhibit two types of textures due to the out of plane tilting, which is corroborated by the Landau-de Gennes Q-tensor modelling. The transverse magnetic moment of the peanut-shaped colloids is estimated by using a simple analysis based on the competing effects of magnetic and elastic torques.
Development of New Tomato Products in a Very Consolidated Market
Authors: Vidyarthi Sriram K. , Evans Mark E.
Published: January 2019

In the tomato processing industry, like any food industry, product and process development is considered a vital part of an astute business strategy. Tomato processing companies engage in new product development with the expectation of acquiring new customers, expanding into new geographic markets, growing profits, improving brand recognition, or expanding market share. The demand for new processed tomato products is growing for several reasons, including population growth, urbanization, ethnic diversity, rising incomes, and changing lifestyles. Failure to develop novel and improved tomato products makes processors compete solely on commodity sales price, which favours the companies with lowest production cost which in turn favours companies with larger production volumes, lower land and labour cost, and favourable climatic conditions. While these efficiencies remain the primary driver of the processing tomato industry in California, the purpose of this chapter is to discuss new product development in the tomato industry, including upcoming trends and potential opportunities.
Valorization of Tomato Waste for Energy Production
Authors: Valenzuela María Eugenia Martínez , Restović Franko
Published: January 2019

The annual production of fresh tomatoes amounted to approximately 170 million tons in 2017, of which a quarter were grown for the processing industry to produce tomato juice, paste, purée, ketchup, canned tomatoes, and other products. As tomato consumption increases, the quantity of waste and by-products from the tomato processing industry is becoming a critical ecological and financial problem. In the production of tomatoes for ketchup, sauces, or juices, large quantities of residues are generated, accounting for 3.0–7.0% of the total raw materials. Several bioactive compounds can be recovered from these residues, but a significant percentage of them are left unexploited. For this reason it the use of these residues as energy sources, using physical, chemical, and biological technologies, has been proposed. This chapter gives an overall view of the main characteristics of these residues and the possibilities for their conversion into energy.
Functional and Health-promoting Properties of Tomatoes: It's Not Just Lycopene
Authors: Martí Raul , Valcárcel Mercedes , Roselló Salvador , Cebolla-Cornejo Jaime
Published: January 2019

Consumers increasingly demand food products with high functional quality, capable of preventing the development of diseases and contributing to the maintenance of well-being. The benefits of eating more vegetable-based products have contributed to this trend. The functional quality of tomato products has usually been linked to their lycopene content, even though its presence cannot be claimed in all countries as its health-promoting properties are controversial. Lycopene is probably the best-known compound in tomato, as it defines the characteristic red colour and can be found in a limited number of other species. However, tomato is also an important dietary source of other bioactive compounds including vitamin C, β-carotene, and polyphenols. In these cases, the high levels of consumption of tomato, exceeding 40 kg per capita per year in some parts of the world, compensates for the medium to low levels of these molecules. In this chapter, the benefits of tomato consumption and the effects of its bioactive constituents on cardiovascular diseases, cancers, and other degenerative diseases are analysed. The efforts made in plant breeding programmes to increase the contents of these constituents are also discussed. Currently, combining high pigment genes with genes altering the carotenoid profile and anthocyanin accumulation seems to be the best way to offer maximum functional quality in small-size cultivars.
Aptamer lateral flow assays for rapid and sensitive detection of cholera toxin
Authors: Frohnmeyer Esther , Tuschel Nadine , Sitz Tobias , Hermann Cornelia , Dahl Gregor T. , Schulz Florian , Baeumner Antje J. , Fischer Markus
Published: January 2019

A GM1-liposome aptamer sandwich LFA was developed and compared with AuNP-based competitive aptamer and aptamer-antibody sandwich LFAs for cholera toxin detection.
From aggregation-induced to solution emission: a new strategy for designing ratiometric fluorescent probes and its application for in vivo HClO detection
Authors: Shi Rongguang , Chen Hua , Qi Yunpeng , Huang Wei , Yin Gui , Wang Ruiyong
Published: January 2019

The fluorescence of aggregation-induced emission is converted into that from ICT-induced emission in the presence of HClO.
Calcium vanadate sub-microfibers as highly reversible host cathode material for aqueous zinc-ion batteries
Authors: Liu Xu , Zhang Huang , Geiger Dorin , Han Jin , Varzi Alberto , Kaiser Ute , Moretti Arianna , Passerini Stefano
Published: January 2019

CaV6O16·3H2O sub-microfibers were synthesized and investigated as highly reversible cathodes for aqueous Zn storage.
Sulfo-click chemistry with 18F-labeled thio acids
Authors: Urkow Jenna , Bergman Cody , Wuest Frank
Published: January 2019

The first application of sulfo-click chemistry with 18F-labeled thio acids is described.
Porous covalent organic frameworks for high transference number polymer-based electrolytes
Authors: Dong Derui , Zhang Hui , Zhou Bin , Sun Yufei , Zhang Hailian , Cao Min , Li Jubai , Zhou Han , Qian Hao , Lin Zhiyong , Chen Hongwei
Published: January 2019

COFs with boron-containing frameworks were used to adsorb the free anion in polymer electrolytes. The Li+ transference number of the resulting electrolytes is thus dramatically improved. The optimized COFs or MOFs could be used as functional additives for future all-solid-state batteries.
Immobilization of a molecular cobalt cubane catalyst on porous BiVO4via electrochemical polymerization for efficient and stable photoelectrochemical water oxidation
Authors: Jiang Wenchao , Yang Xiaoxuan , Li Fei , Zhang Qian , Li Siyuan , Tong Haili , Jiang Yi , Xia Lixin
Published: January 2019

A cobalt cubane catalyst was immobilized onto a BiVO4 electrode via electrochemical polymerization to fabricate hybrid photoanodes for stable photoelectrochemical water oxidation.
An integrated platform for the capture of circulating tumor cells and in situ SERS profiling of membrane proteins through rational spatial organization of multi-functional cyclic RGD nanopatterns
Authors: Dong Hui , Yao Dazhi , Zhou Qi , Zhang Limin , Tian Yang
Published: January 2019

An integrated platform was established for capture of cancer cells and SERS detection of HER2 activity via multifunctional RGD nanopatterns.
Aggregation-induced emission (AIE)-active molecules bearing singlet oxygen generation activities: the tunable singlet–triplet energy gap matters
Authors: Zhang Chengkai , Zhao Yanqian , Li Dandan , Liu Jiejie , Han Heguo , He Daoyu , Tian Xiaohe , Li Shengli , Wu Jieying , Tian Yupeng
Published: January 2019

Two-photon active photosensitizers showed relatively strong intersystem crossing facilitating 1O2 generation and cell apoptosis with near-infrared excitation.
Ultra-highly selective trapping of perrhenate/pertechnetate by a flexible cationic coordination framework
Authors: Li Cheng-Peng , Ai Jin-Yun , Zhou Hang , Chen Qi , Yang Yijie , He Hongming , Du Miao
Published: January 2019

This work presents a 3D cationic coordination framework, showing ultra-highly selective trapping of perrhenate/pertechnetate in the presence of sulfate 20 000 times in excess.
Halide-assisted activation of atomic hydrogen for photoreduction on two-liquid interfacial plasmonic arrays
Authors: Xu Yue , Yu Fanfan , Su Mengke , Du Shanshan , Liu Honglin
Published: January 2019

A two-liquid interfacial 3D plasmonic array for SERS examination on direct photoreduction of p-nitrothiophenol to p-aminothiophenol, revealing the mechanism of halide-assisted activation of atomic hydrogen and the balance between the enhancing and weakening effect.
Isolation of a stable pyridine radical anion
Authors: Schröder Jan , Himmel Daniel , Kratzert Daniel , Radtke Valentin , Richert Sabine , Weber Stefan , Böttcher Tobias
Published: January 2019

For almost 150 years, pyridine radical anions have been described as elusive transient species that cannot be isolated due to dimerization and/or subsequent decomposition reactions. In this work the first example of a stable pyridine radical anion is presented.
Spindle-like and telophase-like self-assemblies mediated by complementary nucleobase molecular recognition
Authors: Wang Mu , Choi Bonnie , Sun Zhonghe , Wei Xiaohu , Feng Anchao , Thang San H.
Published: January 2019

Supramolecular nanoparticles based on complementary nucleobase interactions have aroused wide interest.
The internal structure of hydrothermally grown leucosapphire crystals
Authors: Thomas Victor G. , Daneu Nina , Mashkovtsev Rudolf I. , Rečnik Aleksander , Fursenko Dmitry A.
Published: January 2019

This study explores the fine structural details of the boundaries between the growth micro-sectors in a leucosapphire (pure corundum, α-Al2O3) crystal grown hydrothermally on a nonsingularly oriented (011̄2̄) seed.
Evaluating chemical bonding in dioxides for the development of metal–oxygen batteries: vibrational spectroscopic trends of dioxygenyls, dioxygen, superoxides and peroxides
Authors: Radjenovic Petar M. , Hardwick Laurence J.
Published: January 2019

Analysis of Raman and IR spectral bands of >200 dioxygen species highlighted the effect of the immediate chemical environment on O–O bonding.
Understanding charge carrier dynamics in a P3HT:FLR blend
Authors: Patel Jessica , Sharma Abhishek , Chauhan Mihirsinh , Aatif Md. , Vashistha Nikita , Kumar Mahesh , Tripathi Brijesh , Chand Suresh , Tiwari J. P. , Pandey Manoj Kumar
Published: January 2019

In organic photovoltaics, a good solvent-material combination plays a pivotal role in enhancing the performance.
Discriminating Seebeck sensing of molecules
Authors: Sadeghi Hatef
Published: January 2019

In this paper, we demonstrated that the sign of Seebeck coefficient which is often robust against conformational changes can be employed for selective sensing of gas molecules or biological species. Seebeck sensing is a generic concept and opens new avenues for molecular sensing.
Crossover in the inelastic electron tunneling spectra of conjugated molecules with direct Au–C links
Authors: Montes Enrique , Foti Giuseppe , Vázquez Héctor
Published: January 2019

We use inelastic electron tunneling spectroscopy (IETS) first-principles simulations to identify and characterize the different vibrational modes of single conjugated molecules bonded to Au metal electrodes.
Effect of component content variation on composition and structure of activated carbon in PVDF:K2CO3
Authors: Zhu Wenliang , Okada Kohei , Li Zhong , Zhu Jiliang , Marin Elia , Pezzotti Giuseppe
Published: January 2019

Percolative composites consisting of potassium carbonate dispersed in polyvinylidene fluoride (PVDF) polymeric matrix have shown high dielectric constant and electrical conductivity due to the formation of chemically activated carbon interfaces in the composite.
Unusual interfacial magnetic interactions for τ-MnAl with Fe(Co) atomic layers
Authors: Tong Junwei , Feng Yuxuan , Tian Fubo , Zhou Lianqun , Qin Gaowu , Zhang Xianmin
Published: January 2019

The interfacial magnetic interaction and coupling mechanism for τ-MnAl with Fe(Co) atomic layers have been studied using first principles calculations.
From cyclic nanorings to single-walled carbon nanotubes: disclosing the evolution of their electronic structure with the help of theoretical methods
Authors: Pérez-Guardiola A. , Ortiz-Cano R. , Sandoval-Salinas M. E. , Fernández-Rossier J. , Casanova D. , Pérez-Jiménez A. J. , Sancho-García J. C.
Published: January 2019

We systematically investigate the relationships between structural and electronic effects of finite size zigzag or armchair carbon nanotubes of various diameters and lengths, starting from a molecular template of varying shape and diameter.
Percolation behaviors of ionic and electronic transfers in Li3−2xCoxN
Authors: Badot J. C. , Panabière E. , Emery N. , Dubrunfaut O. , Bach S. , Pereira-Ramos J. P.
Published: January 2019

Nitridocobaltates Li3−2xCoxN, with Li3N-type layered structure, are promising compounds as negative electrode materials for Li-ion batteries.
Non-covalent complexes of the peptide fragment Gly-Asn-Asn-Gln-Gln-Asn-Tyr in the gas-phase. Photodissociative cross-linking, Born–Oppenheimer molecular dynamics, and ab initio computational binding study
Authors: Huang Shu R. , Liu Yang , Tureček František
Published: January 2019

Photodissociative cross-linking in the Gly-Asn-Asn-Gln-Gln-Asn-Tyr peptide ion complex revealed non-bonding interactions between the peptide units.
Electron-induced chemistry of surface-grown coordination polymers with different linker anions
Authors: Ahlenhoff Kai , Koch Sascha , Emmrich Daniel , Dalpke Raphael , Gölzhäuser Armin , Swiderek Petra
Published: January 2019

The structure of the linker anions is decisive for the efficiency and outcome of electron-induced chemistry in surface-grown layers of copper(ii) containing materials.
Theoretical modelling of the dynamics of primary photoprocess of cyclopropanone
Authors: Filatov Michael , Min Seung Kyu , Choi Cheol Ho
Published: January 2019

Photodecomposition of cyclopropanone is investigated by static quantum chemical calculations and non-adiabatic molecular dynamics (NAMD) simulations.
Self-assembled structure and dynamics of imidazolium-based protic salts in water solution
Authors: Zhu Haijin , Vijayaraghavan R. , MacFarlane Douglas R. , Forsyth Maria
Published: January 2019

In this work we demonstrate that imidazolium cations with short alkyl chains can form a self-assembled structure in aqueous solution.
Investigation of the Lewis acidic behaviour of an oxygen-bridged planarized triphenylborane toward amines and the properties of their Lewis acid–base adducts
Authors: Kitamoto Yuichi , Kobayashi Fumiaki , Suzuki Takatsugu , Miyata Yasuo , Kita Hiroshi , Funaki Kenji , Oi Shuichi
Published: January 2019

Lewis acid behavior of an oxygen-bridged triphenylborane (1) to amines and the properties of Lewis acid–base adducts of 1 with amines have been investigated.
Interactions of aggregating peptides probed by IR-UV action spectroscopy
Authors: Bakels Sjors , Meijer Eline M. , Greuell Mart , Porskamp Sebastiaan B. A. , Rouwhorst George , Mahé Jerôme , Gaigeot Marie-Pierre , Rijs Anouk M.
Published: January 2019

The interplay between intramolecular and formed inter-sheet hydrogen bonds and the effect of dispersion interactions on the formation of peptide dimers is studied using IR-UV action spectroscopy.
Quantum coherence in ultrafast photo-driven charge separation
Authors: Phelan Brian T. , Schultz Jonathan D. , Zhang Jinyuan , Huang Guan-Jhih , Young Ryan M. , Wasielewski Michael R.
Published: January 2019

Ultrafast electron transfer occurs with greater-than-statistical rate enhancement at cryogenic temperatures owing to quantum coherence.
Theoretical analysis of the inverted region in photoinduced proton-coupled electron transfer
Authors: Goldsmith Zachary K. , Soudackov Alexander V. , Hammes-Schiffer Sharon
Published: January 2019

Photoinduced proton-coupled electron transfer (PCET) plays a key role in a wide range of energy conversion processes, and understanding how to design systems to control the PCET rate constant is a significant challenge.
Carbon dots: synthesis, formation mechanism, fluorescence origin and sensing applications
Authors: Liu Meng Li , Chen Bin Bin , Li Chun Mei , Huang Cheng Zhi
Published: January 2019

We systematically summarize the recent progress in the green synthesis and formation mechanism of CDs with the hope to provide guidance for developing CDs with the concept of green chemistry. In addition, we discuss and organize the current opinions on the fluorescence origin of CDs and the latest progress of CDs in fluorescence sensing applications.
Elemental mapping of biodegradable magnesium-based implants in bone and soft tissue by means of μ X-ray fluorescence analysis
Authors: Helmholz Heike , Luthringer-Feyerabend Bérengère Julie Christine , Willumeit-Römer Regine
Published: January 2019

Besides the biocompatibility and potential support of bone-healing, homogeneous degradation and the uniform distribution of degradation products are key factors for a successful medical application of magnesium (Mg)-based materials as biodegradable implants in orthopedic therapies.
Single-particle ICP-MS with online microdroplet calibration: toward matrix independent nanoparticle sizing
Authors: Hendriks Lyndsey , Ramkorun-Schmidt Benita , Gundlach-Graham Alexander , Koch Julian , Grass Robert N. , Jakubowski Norbert , Günther Detlef
Published: January 2019

Microdroplets with known concentrations of element standards are introduced concomitant with NP-containing solutions into the ICP to provide online matrix-matched calibration of analyte NPs for single-particle-ICP-TOFMS.
Two-level submicron high porosity membranes (2LHPM) for the capture and release of white blood cells (WBCs)
Authors: Hernández-Castro Javier Alejandro , Li Kebin , Daoud Jamal , Juncker David , Veres Teodor
Published: January 2019

A method modifying a vacuum-assisted UV micro-molding (VAUM) process is proposed for the fabrication of polymer two-level submicron high porosity membranes (2LHPM).
Design, synthesis, antifungal activity and 3D-QSAR study of novel pyrazole carboxamide and niacinamide derivatives containing benzimidazole moiety
Authors: Si Wei-Jie , Wang Xiao-Bin , Chen Min , Wang Meng-Qi , Lu Ai-Min , Yang Chun-Long
Published: January 2019

The synthesized pyrazole carboxamide and niacinamide derivatives containing a benzimidazole moiety showed effective inhibition of the fungus B. cinereal growth. The 3D-QSAR model was built and revealed fine predictive ability.
Novel and effective strategy of dual bis(trifluoromethylsulfonyl)imide imidazolium ionic liquid immobilized on periodic mesoporous organosilica for greener cycloaddition of carbon dioxide to epoxides
Authors: Jin Tan , Dong Fang , Liu Yang , Hu Yu Lin
Published: January 2019

Novel periodic mesoporous organosilica supported ionic liquids were prepared, characterized and evaluated as catalysts for cycloaddition of CO2 to epoxides.
Metal–ligand ring aromaticity in a 2D coordination polymer used as a photosensitive electronic device
Authors: Ahmed Faruk , Ghosh Sourav Ranjan , Halder Soumi , Guin Surajit , Alam Seikh Mafiz , Ray Partha Pratim , Jana Atish Dipankar , Mir Mohammad Hedayetullah
Published: January 2019

14-Membered metal–ligand ring present in a photosensitive 2D coordination polymer, [Zn2(fum)2(4-phpy)4(H2O)2] (H2fum = fumaric acid and 4-phpy = 4-phenyl pyridine) shows aromatic character as evident by the nucleus-independent chemical shifts (NICS) calculation.
Preparation of ellagic acid micro and nano formulations with amazingly increased water solubility by its entrapment in pectin or non-PAMAM dendrimers suitable for clinical applications
Authors: Alfei Silvana , Turrini Federica , Catena Silvia , Zunin Paola , Parodi Brunella , Zuccari Guendalina , Pittaluga Anna Maria , Boggia Raffaella
Published: January 2019

Innovative antioxidant ellagic acid (EA) formulations suitable for oral and parenteral EA administration were achieved avoiding the use of harmful additives.
Anthracene dimer crosslinked polyurethanes as mechanoluminescent polymeric materials
Authors: Kan Lei , Cheng Haoge , Li Bo , Zhang Xinyue , Wang Qiang , Wei Hao , Ma Ning
Published: January 2019

The force-induced cleavage of anthracene dimer results in fluorescence and shows good sensitivity to mechano-stimuli such as pressure.
Chemical ecology of the marine plankton
Authors: Brown Emily R. , Cepeda Marisa R. , Mascuch Samantha J. , Poulson-Ellestad Kelsey L. , Kubanek Julia
Published: January 2019

A review of chemically mediated interactions in planktonic marine environments covering new studies from January 2015 to December 2017.
Biochemical studies of a β-1,4-rhamnoslytransferase from Streptococcus pneumonia serotype 23F
Authors: Wang Hong , Li Siqiang , Xiong Chenghe , Jin Guoxia , Chen Zonggang , Gu Guofeng , Guo Zhongwu
Published: January 2019

A new β-rhamnoslytransferase Cps23FT from Streptococcus pneumonia serotype 23F was functionally explored for the first time.
Efficient liquid-phase hydrogenolysis of a lignin model compound (benzyl phenyl ether) using a Ni/carbon catalyst
Authors: Matsagar Babasaheb M. , Kang Ting-Cih , Wang Zheng-Yen , Yoshikawa Takuya , Nakasaka Yuta , Masuda Takao , Chuang Li-Ching , Wu Kevin C.-W.
Published: January 2019

Efficient liquid-phase hydrogenolysis of benzyl phenyl ether using Ni/CB in an EtOH/H2O co-solvent system.
Scattering patterns and stress–strain relations on phase-separated ABA block copolymers under uniaxial elongating simulations
Authors: Hagita Katsumi , Akutagawa Keizo , Tominaga Tetsuo , Jinnai Hiroshi
Published: January 2019

To develop molecularly based interpretations of the two-dimensional scattering patterns (2DSPs) of phase-separated block copolymers (BCPs), we performed coarse-grained molecular dynamics simulations of ABA tri-BCPs under uniaxial stretching for block-fractions where the A-segment (glassy domain) is smaller than the B-segment (rubbery domain), and estimated the behaviour of their 2DSPs.
Rab11FIP proteins link endocytic recycling vesicles for cytoskeletal transport and tethering
Authors: Machesky Laura M.
Published: January 2019

Regulated trafficking of internalised integrins and growth factor receptors enables polarisation of morphology and motility and enables lumen formation in multicellular structures. Recycling vesicles marked with Rab11 direct internalised cargo back to the plasma membrane to affect biological processes such as polarised trafficking and cancer cell invasion. A recent study by Ji and colleagues, provides insight into how the trafficking protein Rab11FIP2 links with the actin-based motor myo5b and the small GTPase Rab11 to regulate vesicle tethering and transport along actin filaments [1]. The authors used biochemical methods to demonstrate that Rab11a binds directly to the tail of myo5b and that Rab11FIP2 also forms direct interactions with both Rab11a and myo5b tails. These proteins essentially compete for binding to similar regions and thus can regulate the association and activity of each other. Ji and colleagues further demonstrate that Rab11a activates myo5b by binding to its globular tail and relieving a head-tail autoinhibition. Due to differing affinities between Rab11 and myo5b or Rab11FIP2, they propose that Rab11FIP2 mediates the association of myo5b with cargo vesicles, while Rab11a regulates the motor activity of myo5b. The present study thus elucidates how myo5b is regulated by its interactions with Rab11a and Rab11FIP2 and proposes a model for coordination of recycling vesicle tethering and motor activity. The present study has implications for how cells control polarity and motility in health and disease and suggests how Rab11FIP proteins might control motor protein activity and engagement for transport.
Grating ridged waveguide V‐shaped slot array antenna for SATCOM applications
Authors: Yuan Weile , Liang Xianling , Zhang Lina , Geng Junping , Zhu Weiren , Jin Ronghong
Published: January 2019

This Letter presents a grating ridged waveguide V‐shaped slot array antenna for satellite communication (SATCOM) receiving antenna applications. A special grating ridged waveguide, V‐shaped slots and a matching section are applied in the proposed antenna design, so that the antenna provides an extra filtering response with a high radiation polarisation purity in a compact structure. For demonstration, a referential normal ridged waveguide V‐shaped slot array antenna is designed and compared. The simulation results show that the proposed antenna not only operates well in the working frequencies (12.25–12.75 GHz) but also provides the antenna gains of lower than compared with those of the referential antenna in the interference frequencies (14.0–14.5 GHz).
Optimum SWIPT relaying in bidirectional non‐regenerative relay networks
Authors: Ju MinChul , Yang Hong‐Chuan
Published: January 2019

The authors study the optimal design of simultaneous wireless information and power transfer relaying in bidirectional non‐regenerative relay networks. They consider both power splitting relaying and time switching relaying. Since there are two opposite traffic flows between two sources, they characterise the transmission rate performance by the minimum rate of two opposite traffic flows. Specifically, they first obtain closed‐form expressions for the optimum power splitting and time switching coefficients to maximise the minimum transmission rate of bidirectional non‐regenerative relaying. They also derive the resulting maximum transmission rate expressions. Furthermore, they consider a minimum input radio frequency (RF) power level to turn on diodes, and derive the turn‐on probability of the RF energy harvesting circuit when two channels experience independent Rayleigh fading. Numerical results confirm that the authors' analyses exactly match with simulation results and that the two relaying strategies with optimum coefficients give almost the same transmission rate performance.
Constrained robust model predicted control of discrete‐time Markov jump linear systems
Authors: Lopes Rosileide O. , Mendes Eduardo M. A. M. , Torres Leonardo A. B. , Palhares Reinaldo M.
Published: January 2019

This study is concerned with the problem of designing a robust model predictive control (MPC) for a class of uncertain discrete‐time Markov jump linear systems. The main contribution is a set of linear matrix inequality (LMI) conditions obtained under new control policies for the unconstrained as well as the constrained MPC when uncertainties are present both in the system's matrices and in the transition probabilities of the modes. For the constrained MPC, hard constraints are considered over the input control and the states and results are extended to the so‐called multi‐step mode‐dependent state‐feedback control design. To illustrate the improvements obtained with the new set of LMI conditions, numerical simulations are carried out and compared with a recent reference in the literature.
V2V‐based method for the detection of road traffic congestion
Authors: Wang Runmin , Xu Zhigang , Zhao Xiangmo , Hu Jinchao
Published: January 2019

The traffic congestion detection based on the internet of vehicles is gaining enormous research interest. A vehicle‐to‐vehicle (V2V)‐based method for the detection of road traffic congestion is proposed. Firstly, a fuzzy controller was constructed based on the vehicle speed, traffic density, and traffic congestion rating system, and the level of local traffic congestion was evaluated. Then, the level of local traffic congestion of neighbouring vehicles was queried based on V2V communication, and the level of regional traffic congestion was obtained based on a large sub‐sample hypothesis test. Finally, a simulation test platform was built based on vehicles in network simulation, and the back‐off time slots and received packets of vehicle nodes were calculated. The accuracy of the proposed method for detecting road traffic congestion was compared to the cooperative traffic congestion detection (CoTEC) method and the geomagnetic coil method. The results show that the detection accuracy of the proposed method increased by 5.5 and 7.5%, respectively, compared to the geomagnetic coil method and CoTEC method. The V2V communication network overhead of the proposed traffic congestion detection method is reduced by 90.8% compared to the adopted CoTEC method. The communication overhead of the vehicle node using the proposed method is significantly decreased when there is no traffic congestion.
Distributed dynamic grid support using smart PV inverters during unbalanced grid faults
Authors: Shuvra Mahfuz A. , Chowdhury Badrul
Published: January 2019

A dynamic voltage support strategy using smart photovoltaic (PV) inverters during unbalanced grid faults events is proposed. It uses Karush–Kuhn–Tucker condition for finding optimal solutions to calculate the inverter's active and reactive current references. The proposed methodology also takes the X/R ratio into consideration which allows the inverter to differentiate weak or strong grid conditions and adjust its reference currents. Existing multiple‐complex coefficient‐filter based phase locked loop is used to extract the positive and negative sequence components. The proposed strategy deploys existing dual vector current control to ensure optimal current injection and low voltage ride through. A distributed ride‐through coordination approach among multiple inverters is also proposed based on different optimisation goals – either fundamental positive or fundamental negative sequence voltage support. The strategy is simulated, and inverter's transient performance is experimentally verified on a modified IEEE‐13 bus test feeder using controller hardware‐in‐the‐loop approach. Results show substantial evidence that the proposed method can be successfully applied to support the grid during an unbalanced fault event.
Risk‐averse energy management system for isolated microgrids considering generation and demand uncertainties based on information gap decision theory
Authors: Nasr Mohamad‐Amin , Nasr‐Azadani Ehsan , Rabiee Abbas , Hosseinian Seyed Hossein
Published: January 2019

There are many technical challenges for integration of renewable energy sources (RESs) in the context of microgrids. Among these challenges, spinning reserve energy management should be accurately considered in the microgrid scheduling system for a better system operation. This study presents a methodology to model and analyse a novel scheme to integrate RESs, particularly photovoltaic (PV) systems, in diesel generation‐based isolated microgrids. The proposed approach considers the uncertainties of PV power generation and demand, simultaneously, by solving a bi‐level multi‐objective optimisation problem using information gap decision theory (IGDT). The proposed energy management system is formulated considering spinning reserve constraints and the uncertainties associated with PV power generation and load, by solving a unit commitment problem. This method, a non‐probabilistic approach, does not require the probability density function of uncertain parameters and provides a robust framework to better understand the potential savings due to the PV integration. In order to test and perform the analysis, realistic data from a 20 MW hybrid PV project is used as a case study. Furthermore, the proposed method is compared with probabilistic techniques, such as Monte Carlo simulations and scenario‐based stochastic programming technique. The presented studies demonstrate applicability of the proposed model for real microgrids.
Electrostatic discharge algorithm: a novel nature‐inspired optimisation algorithm and its application to worst‐case tolerance analysis of an EMC filter
Authors: Bouchekara Houssem R.E.H
Published: January 2019

Because of their several advantages like simplicity, flexibility and adaptability, nature‐inspired (NI) optimisation algorithms have attracted significant attention for solving complex optimisation problems. Source of inspiration for NI are multiple. This study aims to propose a new NI optimisation algorithm inspired by the electrostatic discharge (ESD) event. Tested on a large set of benchmarks and compared with several well‐known optimisation algorithms the ESD algorithm (ESDA) is found to be a very competitive algorithm. Moreover, the ESDA has been applied for the determination of wort‐case scenarios for electromagnetic compatibility (EMC) filter.
Preparation and structural characterisation of magnetic NiFe2O4@ABS@Ag nanocompound with antibacterial property
Authors: Mohebbi Maryam , Allafchian Alireza , Kameli Parviz , Jalali Seyed Amirhoosien
Published: January 2019

The present research attempted to characterise the structural and magnetic characteristics of NiFe2O4@ABS@Ag nanoparticles (NPs) made of nickel ferrite (NiFe2O4), acrylonitrile butadiene styrene (ABS) and silver NPs (Ag NPs), this was done by employing techniques such as X‐ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscopy and transmission electron microscopy, as well as a vibrating sample magnetometer. The XRD patterns obtained indicated that following ABS and Ag NPs coating, the crystallite size (from Scherrer formula) was increased from 32 to 40 nm. It was confirmed by the magnetic measurements that the maximum magnetisation of the NiFe2O4 core was dropped when the surface was coated with ABS and Ag NPs. The antimicrobial activity of this three‐component nanocomposite was tested, showing that the nanocomposite NiFe2O4@ABS@Ag could be isolated from a water solution by using a magnet.
Preparation of CQDs with hydroxyl function for Fe3+ detection
Authors: Dong Limin , Zhang Wanqi , Li Xuejiao , Geng Xiaoyao
Published: January 2019

Owing to its excellent fluorescence stability, unique up‐conversion fluorescence properties and biocompatibility, carbon‐quantum dots (CQDs) have become a research hot spot in the field of carbon materials. This study used a series of different preparation strategies to synthesise CQDs such as microwave method, solvothermal method and hydrothermal method. The prepared quantum dots can be further applied to design and metal ion detection. It is worth noting that the CQDs prepared by the hydrothermal method are evenly distributed in the range of 2–3 nm without any agglomeration. Fluorescence quenching was performed by Fe3+, and the introduction of PO4 3− ion could increase the fluorescence intensity of CQDs‐Fe3+ system. Furthermore, CQDs were hydroxyl functionalised by treating with ethanol. The functionalised CQDs synthesised by solvothermal method greatly enhanced the fluorescence intensity.
IRAM and Gaia views of multi-episodic star formation in IC 1396A
Authors: Sicilia-Aguilar Aurora , Patel Nimesh , Fang Min , Roccatagliata Veronica , Getman Konstantin , Goldsmith Paul
Published: January 2019

Context. IC 1396A is a cometary globule that contains the Class 0 source IC 1396A-PACS-1, which was discovered with Herschel.

Aims. We use IRAM 30m telescope and Gaia DR2 data to explore the star formation history of IC 1396A and investigate the possibilities of triggered star formation.

Methods. IRAM and Herschel continuum data were used to obtain dust temperature and column density maps. Heterodyne data reveal the velocity structure of the gas. Gaia DR2 proper motions for the stars complete the kinematics of the region.

Results. IC 1396A-PACS-1 presents molecular emission similar to a hot corino with warm carbon chain chemistry due to the UV irradiation. The source is embedded in a dense clump surrounded by gas at velocities that are significantly different from the velocities of the Tr 37 cluster. CN emission reveals photoevaporation, while continuum data and high-density tracers (C18O, HCO+, DCO+, and N2D+) reveal distinct gaseous structures with a range of densities and masses.

Conclusions. By combining the velocity, column density, and temperature information and Gaia DR2 kinematics, we confirm that the globule has experienced various episodes of star formation. IC 1396A-PACS-1 is probably the last intermediate-mass protostar that will form within IC 1396A; it shows evidence of being triggered by radiation-driven implosion. Chemical signatures such as CCS place IC 1396A-PACS-1 among the youngest known protostars. Gaia DR2 data reveal velocities in the plane of the sky ~4 km s−1 for IC 1396A with respect to Tr 37. The total velocity difference (8 km s−1) between the Tr 37 cluster and IC 1396A is too small for IC 1396A to have undergone substantial rocket acceleration, which imposes constraints on the distance to the ionizing source in time and the possibilities of triggered star formation. The three stellar populations in the globule reveal that objects located within relatively close distances (<0.5 pc) can be formed in various star-forming episodes within ~1–2 Myr. Once the remaining cloud disperses, we expect substantial differences in evolutionary stage and initial conditions for the resulting objects and their protoplanetary disks, which may affect their evolution. Finally, evidence for short-range feedback from the embedded protostars, and in particular, the A-type star V390 Cep, is also observed.
Near-infrared spectroscopic indices for unresolved stellar populations
Authors: François P. , Morelli L. , Pizzella A. , Ivanov V. D. , Coccato L. , Cesetti M. , Corsini E. M. , Dalla Bontà E.
Published: January 2019

Context.A new generation of spectral synthesis models has been developed in recent years, but there is no matching set of template galaxy spectra, in terms of quality and resolution, for testing and refining the new models.

Aims.Our main goal is to find and calibrate new near-infrared spectral indices along the Hubble sequence of galaxies which will be used to obtain additional constraints to the population analysis based on medium-resolution integrated spectra of galaxies.

Methods.Spectra of previously studied and well-understood galaxies with relatively simple stellar populations (e.g., ellipticals or bulge dominated galaxies) are needed to provide a baseline data set for spectral synthesis models.

Results.X-shooter spectra spanning the optical and infrared wavelengths (350–2400 nm) of bright nearby elliptical galaxies with a resolving power ofR ∼ 4000–5400 were obtained. Heliocentric systemic velocity, velocity dispersion, and Mg, Fe, and Hβline-strength indices are presented.

Conclusions.We present a library of very-high-quality spectra of galaxies covering a large range of age, metallicity, and morphological type. Such a dataset of spectra will be crucial to addressing important questions of the modern investigation concerning galaxy formation and evolution.
Experimental transition probabilities for 4p – 4d spectral lines in V II
Authors: Nilsson H. , Andersson J. , Engström L. , Lundberg H. , Hartman H.
Published: January 2019

Aims. We aim to measure lifetimes of levels belonging to the 3d3(4F)4d subconfiguration in V II, and derive absolute transition probabilities by combining the lifetimes with experimental branching fractions.

Methods. The lifetimes were measured using time-resolved laser-induced fluorescence in a two-photon excitation scheme. The branching fractions were measured in intensity calibrated spectra from a hollow cathode discharge lamp, recorded with a Fourier transform spectrometer.

Results. We report lifetimes for 13 levels at an energy around 73 000 cm−1. Absolute transition probabilities of 78 lines are derived by combining the lifetimes and branching fractions. The experimental values are compared with theoretical data from the literature.
Weak-strong uniqueness for fluid-rigid body interaction problem with slip boundary condition
Authors: Chemetov Nikolai V. , Nečasová Šárka , Muha Boris
Published: January 2019

We consider a coupled partial differential equation-ordinary differential equation system describing the motion of the rigid body in a container filled with the incompressible, viscous fluid. The fluid and the rigid body are coupled via Navier’s slip boundary condition. We prove that the local in time strong solution is unique in the larger class of weak solutions on the interval of its existence. This is the first weak-strong uniqueness result in the area of fluid-structure interaction with a moving boundary.