bluuebunny/crossref_metadata_2025 huggingface dataset:
Visible-light activation of peroxymonosulfate by NiCo2O4/Bi24O31Br10 to accelerate tetracycline degradation
Authors: Song Yueyu , Jiang Jingjing , Ma Yuhan , Li Tianren , Dong Shuangshi
Published: January 2021

Possible degradation mechanism with NiCo2O4/Bi24O31Br10 in a PMS/vis system.
Basic ionic liquids for catalysis: the road to greater stability
Authors: McNeice Peter , Marr Patricia C. , Marr Andrew C.
Published: January 2021

Homogeneous and heterogenized basic ionic liquids as reaction catalysts have been highlighted, particularly where they are used to promote reactions that could form the basis of more sustainable energy and chemical production.
Dissecting transmetalation reactions at the molecular level: C–B versus F–B bond activation in phenyltrifluoroborate silver complexes
Authors: Bathie Fiona , Stewart Adam W. E. , Canty Allan J. , O'Hair Richard A. J.
Published: January 2021

Gas-phase experiments and computation provide fundamental model reactions for aryl and fluoride transfer between silver and boron centres.
Cu(i) complexes as new antiproliferative agents against sensitive and doxorubicin resistant colorectal cancer cells: synthesis, characterization, and mechanisms of action
Authors: Sequeira Diogo , Baptista Pedro V. , Valente Ruben , Piedade M. Fátima M. , Garcia M. Helena , Morais Tânia S. , Fernandes Alexandra R.
Published: January 2021

Cu(i) antiproliferative and cytostatic effect in ovarian cancer cells. Induction of reactive oxygen species which cause DNA damage and changes in protein folding triggering apoptotic and autophagic cell death.
Regulating the magnetic dynamics of mononuclear β-diketone Dy(iii) single-molecule magnets through the substitution effect on capping N-donor coligands
Authors: Xi Jing , Ma Xiufang , Cen Peipei , Wu Yuewei , Zhang Yi-Quan , Guo Yan , Yang Jinhui , Chen Lei , Liu Xiangyu
Published: January 2021

Substituent change modulates the coordination symmetries and magnetic dynamics of five mononuclear β-diketonate-Dy(iii) complexes with capping N-donor coligands, which is studied by the combination of magnetic investigation and ab initio calculation.
Dual-supramolecular contacts induce extreme Hofmann framework distortion and multi-stepped spin-crossover
Authors: Ahmed Manan , Brand Helen E. A. , Peterson Vanessa K. , Clegg Jack K. , Kepert Cameron J. , Price Jason R. , Powell Benjamin J. , Neville Suzanne M.
Published: January 2021

A ligand with dual-supramolecular contact character has been exploited to induce extreme Hofmann framework distortion and a resultant multi-stepped spin-crossover transition behaviour with a mismatch between structural and spin-state periodicity.
BaZnBe2(BO3)2F2: a novel zinc-beryllium borate with SBBO-type structure overcoming the polymorphism problem
Authors: Guo Ruixin , Liu Xiaomeng , Tao Ce , Tang Changcheng , Xia Mingjun , Liu Lijuan , Lin Zheshuai , Wang Xiaoyang
Published: January 2021

A novel zinc-beryllium borate BaZnBe2(BO3)2F2was grown for the first time. It was rationally designed to overcome the structural instability problems of Sr2Be2B2O7(SBBO) and exhibits a moderate birefringence (Δn= 0.063 at 1064 nm).
Comment on “Non-PGM electrocatalysts for PEM fuel cells: effect of fluorination on the activity and stability of a highly active NC_Ar + NH3 catalyst” by Gaixia Zhang, Xiaohua Yang, Marc Dubois, Michael Herraiz, Régis Chenitz, Michel Lefèvre, Mohamed Cherif, François Vidal, Vassili P. Glibin, Shuhui Sun and Jean-Pol Dodelet, Energy Environ. Sci., 2019, 12, 3015–3037, 10.1039/C9EE00867E
Authors: Yin Xi , Holby Edward F. , Zelenay Piotr
Published: January 2021

Proper kinetic and thermodynamic models are important in addressing durability as a major issue facing PGM-free ORR electrocatalysts.
Reducing cobalt from lithium-ion batteries for the electric vehicle era
Authors: Ryu Hoon-Hee , Sun H. Hohyun , Myung Seung-Taek , Yoon Chong S. , Sun Yang-Kook
Published: January 2021

This perspective discusses the challenges to, and strategies for, the commercially viable development of these three classes of cathodes for LIBs.
Femtosecond X-ray spectroscopy of haem proteins
Authors: Bacellar Camila , Kinschel Dominik , Cannelli Oliviero , Sorokin Boris , Katayama Tetsuo , Mancini Giulia F. , Rouxel Jeremy R. , Obara Yuki , Nishitani Junichi , Ito Hironori , Ito Terumasa , Kurahashi Naoya , Higashimura Chika , Kudo Shotaro , Cirelli Claudio , Knopp Gregor , Nass Karol , Johnson Philip J. M. , Wach Anna , Szlachetko Jakub , Lima Frederico A. , Milne Christopher J. , Yabashi Makina , Suzuki Toshinori , Misawa Kazuhiko , Chergui Majed
Published: January 2021

We discuss our recently reported femtosecond (fs) X-ray emission spectroscopy results on the ligand dissociation and recombination in nitrosylmyoglobin (MbNO) in the context of previous studies on ferrous haem proteins.
Conversion of CO2 and small alkanes to platform chemicals over Mo2C-based catalysts
Authors: Marquart Wijnand , Claeys Michael , Fischer Nico
Published: January 2021

Evaluating the effect of synthesis technique and metal oxide support material on the catalytic performance of Mo2C in the CO2 assisted oxidative dehydrogenation of C2H6.
Differential effects of EPA and DHA on DSS-induced colitis in mice and possible mechanisms involved
Authors: Zhang Zhuangwei , Xue Zhe , Yang Haitao , Zhao Feng , Liu Chundi , Chen Jiahui , Lu Songtao , Zou Zuquan , Zhou Yuping , Zhang Xiaohong
Published: January 2021

EPA, superior to DHA, significantly attenuated DSS-induced colitis involved in promoting the expression of tight junction proteins, suppressing inflammatory signaling pathways and triggering intestinal epithelial cell proliferation.
iTRAQ-based quantitative proteomic analysis of the antimicrobial mechanism of lactobionic acid againstStaphylococcus aureus
Authors: Cao Jiarong , Zheng Yan
Published: January 2021

The ultrastructural ofStaphylococcus aureuscells was changed after treating with lactobionic acid.
Simple and efficient syntheses of 2-hydroxy-3H-phenoxazin-3-ones by aerobic oxidative cross-cyclocondensation in water
Authors: Li Wenhao , Duan Wenxue , Tang Qingxuan , Li Zhan-Ting , Yang Guanyu
Published: January 2021

The renewable gallic acid-mediated aerobic oxidative cross-cyclocondensation of equimolar 2-aminophenols and 2-hydroxylphenols assisted by inexpensive Mn(OAc)2 afforded efficiently 2-hydroxyl-phenoxazin-3-ones at room temperature in water.
Motile cells as probes for characterizing acoustofluidic devices
Authors: Kim Minji , Bayly Philip V. , Meacham J. Mark
Published: January 2021

Dynamically responsiveChlamydomonas reinhardtiialgae cells enable real-time assessment of acoustofluidic device performance. The steady-state distribution of these motile cells reflects both the field shape and strength.
Collective dynamics of neuronal activities in various modular networks
Authors: Park Myung Uk , Bae Yonghee , Lee Kyo-Seok , Song Jun Ho , Lee Sun-Mi , Yoo Kyung-Hwa
Published: January 2021

Three type of modular networks are constructed using polydimethylsiloxane (PDMS) microstructures fabricated on a multi-electrode array (MEA) without transfer to investigate how neuronal activities are affected by modular network structure.
Crocin inhibits urea-induced amyloid formation by bovine β-lactoglobulin
Authors: Bodiga Vijaya Lakshmi , Kudle Madhukar Rao , Vemuri Praveen Kumar , Bodiga Sreedhar
Published: January 2021

Crocin stabilizes the native structure of β-lactoglobulin and attenuates urea-induced unfolding and loss of β-sheet structure during amyloidogenesis.
Exploring edge functionalised blue phosphorene nanoribbons as novel photocatalysts for water splitting
Authors: Maibam Ashakiran , Chakraborty Debalina , Joshi Krati , Krishnamurty Sailaja
Published: January 2021

1D phosphorene nanoribbon edges activating water molecules under sunlight.
Design of Mn and Zr incorporated Ag2O nanoparticles and their enhanced photocatalytic activity driven by visible light irradiation for degradation of rose bengal dye
Authors: Subalakshmi A. , Kavitha B. , Karthika A. , Nikhil S. , Srinivasan N. , Rajarajan M. , Suganthi A.
Published: January 2021

Mn, Zr co-doped Ag2O nanoparticles were blended through a wet chemical strategy, and the physicochemical properties of doped and co-doped silver oxide nanoparticles were characterized.
In vitro and in silico molecular docking studies of Rheum emodi-derived diamagnetic SnO2 nanoparticles and their cytotoxic effects against breast cancer
Authors: Sharma Deepika , Kumar Naveen , Mehrotra Tarang , Pervaiz Naveed , Agrawal Lokesh , Tripathi Shalini , Jha Abhishek , Poullikkas Thanasis , Kumar Ravinder , Ledwani Lalita
Published: January 2021

Green-route-bioengineered nanoparticles have received significant attention for diagnosis and treatment of cancer in the medical technology era due to their non-toxic nature, cost-friendliness, and energy efficiency.
Green and facile preparation of graphene/resveratrol/polyaniline composites for high-performance supercapacitors
Authors: Wang Zhaokun , Jiang Licong , Pan Hongwei , Cui Yongyin , Zong Chengzhong
Published: January 2021

A novel and environmentally-friendly resveratrol (RA) was used as an effective reagent for the preparation of reduced graphene oxide (rGO).
A simple and energy-saving route for the fabrication of superhydrophobic surfaces based on modified hyperbranched polyethyleneimine and nano silica
Authors: Wang Yuechuan , Xiao Yao , Fu Xiaowei , Yuan Anqian , Xu Hualiang , Wei Zhengkai , Lei Yuan , Lei Jingxin
Published: January 2021

The facile and low-cost fabrication of fluorine-free superhydrophobic surfaces is still a challenge.
A series of porous 3D inorganic–organic hybrid framework crystalline materials based on 5-aminoisophthalic acid for photocatalytic degradation of crystal violet
Authors: Xin Yu , Zhou Jun , Xing Yong Heng , Bai Feng Ying , Sun Li Xian
Published: January 2021

Seven 3D metal-organic frameworks have been designed and synthesized by the hydrothermal synthetic method based on the ligand 5-aminoisophthalic acid. Complexes 1-4 have better photocatalytic degradation properties for dyes CV.
FRET based ratiometric switch for selective sensing of Al3+ with bio-imaging in human peripheral blood mononuclear cells
Authors: Das Sangita , Pratim Das Partha , Walton James W. , Ghoshal Kakali , Patra Lakshman , Bhattacharyya Maitree
Published: January 2021

FRET based ratiometric switch for selective sensing of Al3+ with bio-imaging in human peripheral blood mononuclear cells (PBMCs).
An expeditious microwave assisted one-pot sequential route to pyrido fused imidazo[4,5-c] quinolines in green media
Authors: Rao Ramdas Nishanth , Chanda Kaushik
Published: January 2021

A novel one-pot sequential route for the synthesis of pyrido[2′,1′:2,3]imidazo[4,5-c]quinolines via microwave-assisted sequential reaction of 2-aminopyridines, 2-bromophenacyl bromides, and aldehydes has been developed in green media.
Multifunctional glycerol/citric acid crosslinked polymer hydrophilic gel with absorptive and reducing properties
Authors: Mendonça Fernanda G. , Menezes Izadora R. S. , Silva Ingrid F. , Lago Rochel M.
Published: January 2021

Multifunctional hydrogel based on glycerol/citric acid presents absorptive and reducing capacities, affording a hybrid gel containing AgNPs in the matrix.
Hierarchical approach for the rational construction of helix-containing nanofibrils using α,β-peptides
Authors: Szefczyk Monika , Szulc Natalia , Gąsior-Głogowska Marlena , Modrak-Wójcik Anna , Bzowska Agnieszka , Majstrzyk Wojciech , Taube Michał , Kozak Maciej , Gotszalk Teodor , Rudzińska-Szostak Ewa , Berlicki Łukasz
Published: January 2021

The incorporation of cyclopentane-based beta-amino acid in the sequence of peptide forming coiled-coil induced formation of nanofibrils.
General and mild modification of food-derived extracellular vesicles for enhanced cell targeting
Authors: Chen Chaoxiang , Sun Mengdi , Liu Xuan , Wu Weijing , Su Liyun , Li Yumei , Liu Gang , Yan Xiaomei
Published: January 2021

A surface functionalization method was developed for enhanced cancer-targeting of EVs, where an nFCM-based methodology was applied to reveal heterogeneity.
Symmetric and asymmetric epitaxial growth of metals (Ag, Pd, and Pt) onto Au nanotriangles: effects of reductants and plasmonic properties
Authors: Xie Xiaobin , van Huis Marijn A. , van Blaaderen Alfons
Published: January 2021

Symmetric and asymmetric epitaxial growth of metals (Ag, Pd, and Pt) onto Au nanotriangles via using l-asorbic acid and/or salicylic acid.
Scalable synthesis of nanoporous atomically thin graphene membranes for dialysis and molecular separations via facile isopropanol-assisted hot lamination
Authors: Cheng Peifu , Moehring Nicole K. , Idrobo Juan Carlos , Ivanov Ilia N. , Kidambi Piran R.
Published: January 2021

We report on a roll-to-roll manufacturing compatible isopropanol-assisted-hot-lamination process for facile fabrication of large-area nanoporous atomically thin graphene membranes (NATMs) for dialysis and molecular separations.
Effect of surface chemistry on bio-conjugation and bio-recognition abilities of 2D germanene materials
Authors: Ang Wei Li , Sturala Jiri , Antonatos Nikolas , Sofer Zdeněk , Bonanni Alessandra
Published: January 2021

The surface ligands on chemically modified germanenes have strong influence on the intrinsic fluorescence, on the bio-conjugation ability and the bio-recognition efficiency of the material towards the detection of a specific analyte.
Tacticity-dependent cross-plane thermal conductivity in molecularly engineered amorphous polymers
Authors: Lee Jaekyo , Kim Youngmu , Joshi Shalik Ram , Kwon Min Sang , Kim Gun-Ho
Published: January 2021

The present study demonstrated that not only chain extension but also torsion of repeating units and steric hindrance should be considered when designing a thermally conductive polymer by extended chain conformation.
Vinylidene fluoride polymerization by metal-free selective activation of hydrogen peroxide: microstructure determination and mechanistic study
Authors: Eid Nadim , Améduri Bruno , Gimello Olinda , Bonnet Anthony , Devisme Samuel
Published: January 2021

Hydrogen peroxide-initiated radical polymerization of vinylidene fluoride (VDF) at 130 °C in dimethyl carbonate is presented.
Synthesis of isoxazolidines via catalyst-free one-pot three-component cycloaddition of sulfoxonium ylides, nitrosoarenes and alkenes
Authors: Li Xing , Zhai Pingan , Fang Yongsheng , Li Wenhui , Chang Honghong , Gao Wenchao
Published: January 2021

A general and practical strategy for the construction of various keto-substituted isoxazolidines via one-pot three-component reaction of easily accessible, safer and more stable sulfoxonium ylides, nitrosoarenes and olefins is described.
Regioselective synthesis of fused oxa-heterocycles via iodine-mediated annulation of cyclic 1,3-dicarbonyl compounds with propargylic alcohols
Authors: Zhang Liang , Mou Neng-Jie , Xiao Dong-Rong , Zhuang Xin , Lin Xiao-Long , Cai Tian , Luo Qun-Li
Published: January 2021

The synthesis of structurally diverse fused oxa-heterocycles is established through the iodine-mediated cascade annulation of cyclic 1,3-dicarbonyl compounds with propargylic alcohols.
DFT and AFIR study on the copper(i)-catalyzed mechanism of 5-enamine-trisubstituted-1,2,3-triazole synthesis via C–N cross-coupling and the origin of ring-opening of 2H-azirines
Authors: Yu Fan , Zhou Zhaoman , Song Jiajia , Zhao Yanying
Published: January 2021

The Cu(i)-catalyzed mechanism of 5-enamined-functionalized fully substituted 1,2,3-triazole synthesis was rationalized by interrupted copper(i)-catalyzed terminal alkynes and organic azides click reaction (CuAAC).
Selective and sensitive visible-light-prompt photoelectrochemical sensor of paracetamol based on Bi2WO6 modified with Bi and copper sulfide
Authors: Li Yijiong , Yu Xiaoguang , Li Ruiqi , Zhao Feng , Liu Guobin , Wang Xin
Published: January 2021

When the compound is illuminated, Bi–CuS/Bi2WO6 generates lots of photogenerated electrons and exhibits outstanding performance for paracetamol (PA).
Improvement of protein emulsion stability through glycosylated black bean protein covalent interaction with (−)-epigallocatechin-3-gallate
Authors: Wang Jubing , Zheng Huanyu , Zhang Shenyi , Li Jishu , Zhu Xiuqing , Jin Hua , Xu Jing
Published: January 2021

Stability improvement of emulsions stabilized by covalent conjugation with glycosylated black bean protein and EGCG (BBPI-G–EGCG) was studied through structure changes of proteins and emulsion properties.
Density functional theory design of double donor dyes and electron transfer on dye/TiO2(101) composite systems for dye-sensitized solar cells
Authors: Lin Chundan , Liu Yanbing , Shao Di , Wang Guochen , Xu Huiying , Shao Changjin , Zhang Wansong , Yang Zhenqing
Published: January 2021

We designed a series of double donor organic dyes based on experimentally synthesized dye WD8, and further investigated their electronic structure, stability of the dye/TiO2 (101) systems, density of states (DOS) and absorption spectra using density functional theory (DFT).
Influence of hydrogenation on the mechanical properties of Pd nanoparticles
Authors: Bian Jianjun , Yang Liang , Yuan Weike , Wang Gangfeng
Published: January 2021

Atomic simulations are conducted to investigate the influence of hydrogenation on the mechanical properties of Pd nanoparticles.
pH and redox dual-sensitive drug delivery system constructed based on fluorescent carbon dots
Authors: Zhang Boye , Duan Qianqian , Li Yi , Wang Jianming , Zhang Wendong , Sang Shengbo
Published: January 2021

The system is pH-responsive and redox-controlled release. And the charge reversal and size transitions of the system can enhance the targeted ability. Moreover, the system can recognize the cancer cells by the fluorescence imaging.
Photo-assembly of plasmonic nanoparticles: methods and applications
Authors: Krajczewski Jan , Ambroziak Robert , Kudelski Andrzej
Published: January 2021

In this review article, various methods for the light-induced manipulation of plasmonic nanoobjects are described, and some sample applications of this process are presented.
Study of Ag precipitation and mechanical properties of Ti–Ta–Ag ternary alloy
Authors: Zhang Jun-Min , Zhao Zong-Yan , Chen Qing-Hua , Chen Xing-Hu , Li Yin-He
Published: January 2021

Precipitation of columnar Ag particles from Ti–Ta–Ag ternary alloys improves mechanical properties.
Applying molecular networking for targeted isolation of depsipeptides
Authors: Lin Xiao , Chai Ling , Zhu Hong Rui , Zhou Yongjun , Shen Yaoyao , Chen Kai Hao , Sun Fan , Liu Bu Ming , Xu Shi Hai , Lin Hou Wen
Published: January 2021

LC-HRMS/MS molecular networking enabled the targeted isolation of three new neoantimycin analogs (1, 3, 5) and two known ones (2, 4) from the culture broth of Streptomyces conglobatus RJ8.
Development of a mitochondrial sirtuin 4 FRET assay based on its activity for removing 3-hydroxy-3-methylglutaryl (HMG) modification
Authors: Li Yan , Zhao Yonglong , Cao Zhuoxian , Wang Jie , Liu Ting , Li Yongjun , Wang Yuanyuan , He Bin
Published: January 2021

A FRET assay of sirtuin 4 based on its activity for removing 3-hydroxy-3-methylglutaryl (HMG) modification.
Manipulation of light transmission from stable magnetic microrods formed by the alignment of magnetic nanoparticles
Authors: Seo Yoon Ji , Lee Hyung Gyu , Yang Jun Seok , Jeong Hwanyeop , Han Jeonghun , Kim Ji-Hye , Koo Hyung-Jun , Yoon Hyunsik
Published: January 2021

Magnetic microrods were synthesised from magnetic nanoparticles by alignment using a magnetic field. The transparency difference was maximised and the anisotropic features of the rods were used as a light valve to control the transparency of a smart window.
Lead-free bright blue light-emitting cesium halide nanocrystals by zinc doping
Authors: Xu Heng , Liang Jianghu , Zhang Zhanfei , Deng Zihao , Qiu Yuankun , He Maosheng , Wang Jianli , Yang Yajuan , Chen Chun-Chao
Published: January 2021

Lead-free blue light-emitting CsBr:Zn and CsI:Zn NCs with a high PLQY of nearly 79% were synthesized via a hot injection method.
Tungsten-substituted molybdophosphoric acid impregnated with kaolin: effective catalysts for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones via biginelli reaction
Authors: Aher Dipak S. , Khillare Kiran R. , Chavan Laxmikant D. , Shankarwar Sunil G.
Published: January 2021

In this paper, synthesize tungsten-substituted molybdophosphoric acid (H3PMo7W5O40·24H2O) and impregnated with kaolin clay by wetness impregnation method. The catalytic activity explored for synthesis of 3,4-dihydropyrimidin-2(1H)-ones (DHPM) via Biginelli reaction.
Nitrogen–phosphorus doped graphitic nano onion-like structures: experimental and theoretical studies
Authors: Martínez-Iniesta Armando D. , Morelos-Gómez Aarón , Muñoz-Sandoval Emilio , López-Urías Florentino
Published: January 2021

Nitrogen–phosphorus doped graphitic nano onion-like structures.
Investigation of electronic properties of chemical vapor deposition grown single layer graphene via doping of thin transparent conductive films
Authors: Singh Anand Kumar , Chaudhary Vivek , Singh Arun Kumar , Sinha S. R. P.
Published: January 2021

The tuning of charge carrier of graphene is a potential step for the realization of multifunctional use in current electronic/optoelectronic devices.
Photocatalytic degradation of organic pollutants through conjugated poly(azomethine) networks based on terthiophene–naphthalimide assemblies
Authors: Alonso-Navarro Matías J. , Barrio Jesús , Royuela Sergio , Karjule Neeta , Ramos M. Mar , Martínez José Ignacio , Shalom Menny , Segura José L.
Published: January 2021

A conjugated two-dimensional poly(azomethine) network based on ambipolar terthiophene–naphthalimide assemblies has been synthesized and its electrochemical and UV-vis absorption properties have been investigated.
CH/π-interaction-driven self-assembly of tetraphenylethylene derivatives into the face to face arrangement
Authors: Yu Lirong , Zhang Mengxing , Lou Dandan , Li Jiale , Wang Xi , Bai Ming
Published: January 2021

The CH/π interaction can drive the TPE motif to adopt a face-to-face crystalline packing in this TPE benzene rings linked with an alkoxyl chain (C4) during aggregation.
Vesicle formation of single-chain amphiphilic 4-dodecylbenzene sulfonic acid in water and micelle-to-vesicle transition induced by wet–dry cycles
Authors: Gao Meihua , Du Na , Yao Zhiyin , Li Ying , Chen Nan , Hou Wanguo
Published: January 2021

Aggregation behavior of DBSA, in water was investigated, showing a concentration-driven micelle-to-vesicle transition. Interestingly, wet–dry cycles can induce micelle-to-vesicle transition and multilamellar vesicle formation.
Two-dimensional materials as a stabilized interphase for the solid-state electrolyte Li10GeP2S12 in lithium metal batteries
Authors: Ma Jiachen , Quhe Ruge , Zhang Zheyu , Yang Chen , Zhang Xiuying , Li Jingzhen , Xu Lin , Yang Jie , Shi Bowen , Liu Shiqi , Xu Linqiang , Sun Xiaotian , Lu Jing
Published: January 2021

An efficient screening procedure for two-dimensional (2D) solid-electrolyte interphases (SEIs) is designed. In the concrete case, the two selected 2D SEIs (h-BN and α-BNyne) do stabilize the interface between the solid-state electrolyte Li10GeP2S12 and the lithium metal anode, blocking the electron transfer and maintaining the Li-ion flow.
High-capacity sulfur copolymer cathode with metallic fibril-based current collector and conductive capping layer
Authors: Shin Dongyeeb , Song Yongkwon , Nam Donghyeon , Moon Jun Hyuk , Lee Seung Woo , Cho Jinhan
Published: January 2021

We report a sulfur copolymer cathode with high areal/specific capacity, rate capability, and cycling stability using carbonization-induced Ni electroplating and interfacial interaction-controlled conductive capping layer.
Porous bismuth antimony telluride alloys with excellent thermoelectric and mechanical properties
Authors: Zhao Peng , Yu Fengrong , Wang Binhao , Zhao Haidong , Chen Chen , Wang Dan , Ying Pan , Wu Yingju , Li Penghui , Zhang Bin , Liu Bing , Zhao Zhisheng , Hu Wentao , Yu Dongli , He Julong , Liu Zhongyuan , Xu Bo , Tian Yongjun
Published: January 2021

Porous BiSbTe bulks with a unique microstructure featuring closely bonded quasi-equiaxed grains show excellent thermoelectric and mechanical properties.
A bifunctional hexa-filamentous microfibril multimetallic foam: an unconventional high-performance electrode for total water splitting under industrial operation conditions
Authors: Rajan Hashikaa , Christy Maria , Jothi Vasanth Rajendiran , Anantharaj S. , Yi Sung Chul
Published: January 2021

Cellulose in various forms possesses high strength, low density, and high aspect ratio with a three-dimensional open network structure, making them ideal candidates as current collectors in energy conversion application.
Alkylamino-terephthalate ligands stabilize 8-connected Zr4+ MOFs with highly efficient sorption for toxic Se species
Authors: Pournara Anastasia D. , Rapti Sofia , Valmas Alexandros , Margiolaki Irene , Andreou Euaggelos , Armatas Gerasimos S. , Tsipis Athanassios C. , Plakatouras John C. , Giokas Dimosthenis L. , Manos Manolis J.
Published: January 2021

The utilization of alkylamino-substituted terephthalic ligands is demonstrated as an efficient synthetic strategy towards microporous 8-connected Zr4+ MOFs, which were proved to be the most efficient sorbents for Se toxic anions ever reported.
Calcium signaling on Jurkat T cells induced by microbeads coated with novel peptide ligands specific to human CD3ε
Authors: Ahmadi Armin , Ayyadevara V. S. S. Abhinav , Baudry Jerome , Roh Kyung-Ho
Published: January 2021

Magnetic microbeads decorated with novel peptide ligands against human CD3ε can activate the Jurkat T cells via specific T cell receptor (TCR) signaling pathways linked to calcium flux, IL-2 secretion, and cell proliferation.
Ultra-sensitive flexible sandwich structural strain sensors based on a silver nanowire supported PDMS/PVDF electrospun membrane substrate
Authors: Yang Zhenhua , Wu Zijian , Jiang Dawei , Wei Renbo , Mai Xianmin , Pan Duo , Vupputuri Sravanthi , Weng Ling , Naik Nithesh , Guo Zhanhu
Published: January 2021

Flexible sandwich structural strain sensors based on silver nanowire supported PDMS/PVDF electrospun membrane substrates exhibit a gauge factor of 654.5.
High piezoelectricity of Eu3+-doped Pb(Mg1/3Nb2/3)O3–0.25PbTiO3 transparent ceramics
Authors: Li Kai , Sun Enwei , Zhang Yongcheng , Song Zhenzhen , Qi Xudong , Sun Yuan , Li Jiaming , Yang Bin , Liu Jian , Cao Wenwu
Published: January 2021

Optically transparent Eu3+-doped Pb(Mg1/3Nb2/3)O3–0.25PbTiO3 (PMN–0.25PT:Eu3+) relaxor ferroelectric ceramics with high piezoelectricity were prepared by oxygen-atmosphere sintering followed by hot-press sintering.
Down-regulated microRNA-199a-3p enhances osteogenic differentiation of bone marrow mesenchymal stem cells by targeting Kdm3a in ovariectomized rats
Authors: Wu Jian-Cheng , Sun Jie , Xu Jia-Cheng , Zhou Zhen-Yu , Zhang Ya-Feng
Published: January 2021

Osteoporosis is a prevalent systemic skeletal disorder entailing bone fragility and increased fracture risk, often emerging in post-menopausal life. Emerging evidence implicates the dysregulation of microRNAs (miRNAs or miRs) in the progression of osteoporosis. This study investigated the effect of miR-199a-3p on osteoporosis and its underlying mechanism. We first examplished an ovariectomized (OVX)-induced rat osteoporosis model, and then isolated mesenchymal stem cells (MSCs) from bone marrow of the model rats. The overexpression and knock down of miR-199a-3p were conducted in OVX rats and MSCs to verify the role of miR-199a-3p on MSC differentiation. Calcium nodules were measured using alizarin red S (ARS) staining. RT-qPCR and Western blot assay were performed to measure the expression of miR-199a-3p, Kdm3a and osteogenic differentiation-related markers in rat tissues and cells. The correlation between miR-199a-3p and Kdm3a was confirmed using dual-luciferase reporter assay. The enrichment of Kdm3a at the Erk2 and Klf2 promoter was assessed using chromatin immunoprecipitation (ChIP) assay. Isolated MSCs were positive for CD29, CD44, CD90, and CD45, suggesting successful isolation of MSCs. There was increased expression of miR-199a-3p and inhibited osteogenic differentiation in OVX rats. Kdm3a was negatively targeted by miR-199a-3p. Our results also demonstrated that Kdm3a elevated the expression of Erk2 and Erk2 by promoting Erk2 and Klf2 demethylation, which further contributed to osteogenic differentiation. Overall, our results revealed a regulatory network of miR-199a-3p in osteogenic differentiation, highlighting miR-199a-3p as a potential target for therapeutic interventions in osteoporosis.
Effects of 22 traditional anti-diabetic medicinal plants on DPP-IV enzyme activity and glucose homeostasis in high-fat fed obese diabetic rats
Authors: Ansari Prawej , Hannon-Fletcher Mary P. , Flatt Peter R. , Abdel-Wahab Yasser H.A.
Published: January 2021

The present study investigated the effects of hot water extracts of 22 medicinal plants used traditionally to treat diabetes on Dipeptidyl peptidase-IV (DPP-IV) activity both in vitro and in vivo in high-fat fed (HFF) obese-diabetic rats. Fluorometric assay was employed to determine the DPP-IV activity. For in vivo studies, HFF obese-diabetic rats were fasted for 6 h and blood was sampled at different times before and after the oral administration of the glucose alone (18 mmol/kg body weight) or with either of the four most active plant extracts (250 mg/5 ml/kg, body weight) or established DPP-IV inhibitors (10 μmol/5 ml/kg). DPP-IV inhibitors: sitagliptin, vildagliptin and diprotin A, decreased enzyme activity by a maximum of 95–99% (P<0.001). Among the 22 natural anti-diabetic plants tested, AnogeissusLatifolia exhibited the most significant (P<0.001) inhibitory activity (96 ± 1%) with IC50 and IC25 values of 754 and 590 μg/ml. Maximum inhibitory effects of other extracts: Aegle marmelos, Mangifera indica, Chloropsis cochinchinensis, Trigonella foenum-graecum and Azadirachta indica were (44 ±7%; 38 ± 4%; 31±1%; 28±2%; 27±2%, respectively). A maximum of 45% inhibition was observed with >25 μM concentrations of selected phytochemicals (rutin). A.latifolia, A. marmelos, T. foenum-graecum and M. indica extracts improved glucose tolerance, insulin release, reduced DPP-IV activity and increased circulating active GLP-1 in HFF obese-diabetic rats (P<0.05–0.001). These results suggest that ingestion of selected natural anti-diabetic plants, in particular A. latifolia, A. marmelos, T. foenum-graecum and M. indica can substantially inhibit DPP-IV and improve glucose homeostasis, thereby providing a useful therapeutic approach for the treatment of T2DM.
The Relationship Between Auditory-Perceptual Rating Scales and Objective Voice Measures in Children With Voice Disorders
Authors: Fujiki Robert Brinton , Thibeault Susan L.
Published: January 2021

Purpose

The purpose of this study was to determine concurrent validity of the Grade, Roughness, Breathiness, Asthenia, and Strain (GRBAS) and Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) auditory-perceptual scales in children with voice disorders. A secondary purpose was to determine correlation between the GRBAS, CAPE-V, and objective voice measures.

Method

GRBAS and CAPE-V ratings and acoustic and aerodynamic measures were collected from the University of Wisconsin–Madison Voice and Swallow Outcomes Database. Correlations between CAPE-V and GRBAS ratings were calculated for overall severity of dysphonia, roughness, breathiness, and strain. Correlations between auditory-perceptual voice ratings and objective voice measures were also examined.

Results

One hundred thirty GRBAS and CAPE-V auditory-perceptual ratings were significantly correlated for overall severity, roughness, breathiness, and strain.r2values were highest for overall severity of dysphonia (r2= .75) and lowest for strain (r2= .54). CAPE-V and GRBAS ratings were largely associated with similar acoustic and aerodynamic measures. The highest correlations were observed for auditory-perceptual ratings of breathiness and jitter% (CAPE-Vr2= .44, GRBASr2= .44), shimmer% (CAPE-Vr2= .45, GRBASr2= .45), noise-to-harmonic ratio (CAPE-Vr2= .42, GRBASr2= .40), fundamental frequency (CAPE-Vr2= .47, GRBASr2= .44), and maximum phonation time (CAPE-Vr2= .56, GRBASr2= .51). Akaike information criterion values indicated that CAPE-V ratings were more strongly correlated with objective voice measures than GRBAS ratings.

Conclusions

CAPE-V and GRBAS scales have concurrent validity in children with voice disorders. CAPE-V ratings are more strongly correlated with acoustic and aerodynamic voice measures.
Cognitive Hearing Science: Three Memory Systems, Two Approaches, and the Ease of Language Understanding Model
Authors: Rönnberg Jerker , Holmer Emil , Rudner Mary
Published: January 2021

Purpose

The purpose of this study was to conceptualize the subtle balancing act between language input and prediction (cognitive priming of future input) to achieve understanding of communicated content. When understanding fails, reconstructive postdiction is initiated. Three memory systems play important roles: working memory (WM), episodic long-term memory (ELTM), and semantic long-term memory (SLTM). The axiom of the Ease of Language Understanding (ELU) model is that explicit WM resources are invoked by a mismatch between language input—in the form of rapid automatic multimodal binding of phonology—and multimodal phonological and lexical representations in SLTM. However, if there is a match between rapid automatic multimodal binding of phonology output and SLTM/ELTM representations, language processing continues rapidly and implicitly.

Method and Results

In our first ELU approach, we focused on experimental manipulations of signal processing in hearing aids and background noise to cause a mismatch with LTM representations; both resulted in increased dependence on WM. Our second—and main approach relevant for this review article—focuses on the relative effects of age-related hearing loss on the three memory systems. According to the ELU, WM is predicted to be frequently occupied with reconstruction of what was actually heard, resulting in a relative
disuse
of phonological/lexical representations in the ELTM and SLTM systems. The prediction and results do not depend on test modality per se but rather on the particular memory system. This will be further discussed.

Conclusions

Related to the literature on ELTM decline as precursors of dementia and the fact that the risk for Alzheimer's disease increases substantially over time due to hearing loss, there is a possibility that lowered ELTM due to hearing loss and
disuse
may be part of the causal chain linking hearing loss and dementia. Future ELU research will focus on this possibility.
Chromospheric and coronal heating and jet acceleration due to reconnection driven by flux cancellation
Authors: Priest E. R. , Syntelis P.
Published: January 2021

Context.The recent discovery of much greater magnetic flux cancellation taking place at the photosphere than previously realised has led us in our previous works to suggest magnetic reconnection driven by flux cancellation as the cause of a wide range of dynamic phenomena, including jets of various kinds and solar atmospheric heating.

Aims.Previously, the theory considered energy release at a two-dimensional current sheet. Here we develop the theory further by extending it to an axisymmetric current sheet in three dimensions without resorting to complex variable theory.

Methods.We analytically study reconnection and treat the current sheet as a three-dimensional structure. We apply the theory to the cancellation of two fragments of equal but opposite flux that approach each another and are located in an overlying horizontal magnetic field.

Results.The energy release occurs in two phases. During Phase 1, a separator is formed and reconnection is driven at it as it rises to a maximum height and then moves back down to the photosphere, heating the plasma and accelerating a plasma jet as it does so. During Phase 2 the fluxes cancel in the photosphere and accelerate a mixture of cool and hot plasma upwards.
J-PAS: Measuring emission lines with artificial neural networks
Authors: Martínez-Solaeche G. , González Delgado R. M. , García-Benito R. , de Amorim A. , Pérez E. , Rodríguez-Martín J. E. , Díaz-García L. A. , Cid Fernandes R. , López-Sanjuan C. , Bonoli S. , Cenarro A. J. , Dupke R. A. , Marín-Franch A. , Varela J. , Vázquez Ramió H. , Abramo L. R. , Cristóbal-Hornillos D. , Moles M. , Alcaniz J. , Baqui P. O. , Benitez N. , Carneiro S. , Cortesi A. , Ederoclite A. , Marra V. , Mendes de Oliveira C. , Sodré L. , Vílchez J. M. , Taylor K.
Published: January 2021

In the years to come, the Javalambre-Physics of the Accelerated Universe Astrophysical Survey (J-PAS) will observe 8000 deg2 of the northern sky with 56 photometric bands. J-PAS is ideal for the detection of nebular emission objects. This paper presents a new method based on artificial neural networks (ANNs) that is aimed at measuring and detecting emission lines in galaxies up to z = 0.35. These lines are essential diagnostics for understanding the evolution of galaxies through cosmic time. We trained and tested ANNs with synthetic J-PAS photometry from CALIFA, MaNGA, and SDSS spectra. To this aim, we carried out two tasks. First, we clustered galaxies in two groups according to the values of the equivalent width (EW) of Hα, Hβ, [N II], and [O III] lines measured in the spectra. Then we trained an ANN to assign a group to each galaxy. We were able to classify them with the uncertainties typical of the photometric redshift measurable in J-PAS. Second, we utilized another ANN to determine the values of those EWs. Subsequently, we obtained the [N II]/Hα, [O III]/Hβ, and O 3N 2 ratios, recovering the BPT diagram ([O III]/Hβ versus [N II]/Hα). We studied the performance of the ANN in two training samples: one is only composed of synthetic J-PAS photo-spectra (J-spectra) from MaNGA and CALIFA (CALMa set) and the other one is composed of SDSS galaxies. We were able to fully reproduce the main sequence of star-forming galaxies from the determination of the EWs. With the CALMa training set, we reached a precision of 0.092 and 0.078 dex for the [N II]/Hα and [O III]/Hβ ratios in the SDSS testing sample. Nevertheless, we find an underestimation of those ratios at high values in galaxies hosting an active galactic nuclei. We also show the importance of the dataset used for both training and testing the model. Such ANNs are extremely useful for overcoming the limitations previously expected concerning the detection and measurements of the emission lines in such surveys as J-PAS. Furthermore, we show the capability of the method to measure a EW of 10 Å in Hα, Hβ, [N II] and [O III] lines with a signal-to-noise ratio (S/N) of 5, 1.5, 3.5, and 10, respectively, in the photometry. Finally, we compare the properties of emission lines in galaxies observed with miniJPAS and SDSS. Despite the limitation of such a comparison, we find a remarkable correlation in their EWs.
Distinguishing between different mechanisms of FU-Orionis-type luminosity outbursts
Authors: Vorobyov Eduard I. , Elbakyan Vardan G. , Liu Hauyu Baobab , Takami Michihiro
Published: January 2021

Aims. Accretion and luminosity bursts can be triggered by three distinct mechanisms: the magnetorotational instability (MRI) in the inner disk regions, clump infall in gravitationally fragmented disks, and close encounters with an intruder star. We study all three of these burst mechanisms to determine the disk kinematic characteristics that can help to distinguish between them.

Methods. Numerical hydrodynamics simulations in the thin-disk limit were employed to model the bursts in disk environments that are expected for each burst mechanism.

Results. We found that the circumstellar disks featuring accretion bursts can bear kinematic features that are distinct for different burst mechanisms, which can be useful when identifying the origin of a particular burst. The disks in the stellar encounter and clump-infall models are characterized by deviations from the Keplerian rotation of tens of per cent, while the disks in the MRI models are characterized by deviations of only a few per cent, which is mostly caused by the gravitational instability that fuels the MRI bursts. Velocity channel maps also show distinct kinks and wiggles, which are caused by gas disk flows that are particular to each considered burst mechanism. The deviations of velocity channels in the burst-hosting disks from a symmetric pattern typical of Keplerian disks are strongest for the clump-infall and collision models, and carry individual features that may be useful for the identification of the corresponding burst mechanism. The considered burst mechanisms produce a variety of light curves with the burst amplitudes varying in the Δm = 2.5−3.7 limits, except for the clump-infall model where Δm can reach 5.4, although the derived numbers may be affected by a small sample and boundary conditions.

Conclusions. Burst-triggering mechanisms are associated with distinct kinematic features in the burst-hosting disks that may be used for their identification. Further studies including a wider model parameter space and the construction of synthetic disk images in thermal dust and molecular line emission are needed to constrain the mechanisms that lead to FU Orionis bursts.
Combining magneto-hydrostatic constraints with Stokes profiles inversions
Authors: Borrero J. M. , Pastor Yabar A. , Ruiz Cobo B.
Published: January 2021

Context.Inversion techniques applied to the radiative transfer equation for polarized light are capable of inferring the physical parameters in the solar atmosphere (temperatureT, magnetic fieldB, and line-of-sight velocityvlos) from observations of the Stokes vector (i.e., spectropolarimetric observations) in spectral lines. Inferences are usually performed in the (x, y, τc) domain, whereτcrefers to the optical-depth scale. Generally, their determination in the (x, y, z) volume is not possible due to the lack of a reliable estimation of the gas pressure, particularly in regions of the solar surface harboring strong magnetic fields.

Aims.We aim to develop a new inversion code capable of reliably inferring the physical parameters in the (x, y, z) domain.

Methods.We combine, in a self-consistent way, an inverse solver for the radiative transfer equation (Firtez-DZ) with a solver for the magneto-hydrostatic equilibrium, which derives realistic values of the gas pressure by taking the magnetic pressure and tension into account.

Results.We test the correct behavior of the newly developed code with spectropolarimetric observations of two sunspots recorded with the spectropolarimeter (SP) instrument on board the Hinode spacecraft, and we show how the physical parameters are inferred in the (x, y, z) domain, with the Wilson depression of the sunspots arising as a natural consequence of the force balance. In particular, our approach significantly improves upon previous determinations that were based on semiempirical models.

Conclusions.Our results open the door for the possibility of calculating reliable electric currents in three dimensions,j(x, y, z), in the solar photosphere. Further consistency checks would include a comparison with other methods that have recently been proposed and which achieve similar goals.
Sensory Evaluation of Low-Carbon City Tourism by Gray Relational Analysis
Authors: Cheng Yueh-Te , Liang Ru-Qian , Ho Meei-Chen , Wu Chao-Hsien
Published: January 2021

The promotion of low-carbon city tourism is an important measure to reduce carbon emissions in various regions and realize sustainability. This research explores tourists’ sensory experience in the city’s low-carbon tourism economy, environment and society from urban low-carbon tourism and providing relevant units with a blueprint for urban low-carbon tourism planning. This research accompanies the empirical cases and introduces Gray Relational Analysis to overcome the difficulties in practice, sometimes due to cost and time constraints, that strategies must formulate with little information, little data, or uncertainty. The research results show that the top low-carbon tourism evaluations of Tainan’s business districts by tourism experts are An-Ping Business District and ChengKung University Business District. Relevant planners can refer to this ranking and weight to analyse sensory marketing opportunities to help create a more attractive low-carbon tourism city.
Life Cycle Assessment of Heaven Mushroom Product
Authors: Sukkanta Phatcharapron , Mongkolkoldhumrongkul Krittaphas
Published: January 2021

Climate change affects all regions around the world, so efforts to minimize the environmental impacts of climate change have high importance. The aim of this study is to evaluate the environmental impacts on the production of heaven mushroom product at the Ban Tai Khod community in Rayong, Thailand. In this study, cradle to gate was selected as the system boundary and functional unit from the life cycle assessment method. The results found that the process of building a mushroom house has the highest greenhouse gas emissions of 1, 496.609 kgCO2eq. The mushroom cubes mixing process has the highest energy consumption throughout the production process, requiring an energy consumption of 5.595 kWh. The greenhouse gas is released amount 3, 588.362 kgCO2eq. throughout this process. Additionally, the payback period of the heaven mushroom product is 0.92 years.
Analysis on innovation strategy of agricultural sustainable business model – Taking Agricultural Maker Space “maker spark” in Sichuan Province as an Example
Authors: Li Yufeng , Zheng Ke , Wang Yan
Published: January 2021

Sustainable business model innovation is increasingly prominent in response to the increasingly urgent issue of sustainable development. It is a creative solution focusing on the long-term development of the organization. The problem of sustainable development in the agricultural field is prominent, and as the agricultural maker space, “maker spark” has become the experimental field and innovation highland of sustainable business model innovation in the agricultural field. Based on the investigation of 32 agricultural maker space operators in Sichuan Province, this paper uses the grounded research method to identify ten agricultural sustainable business model innovation strategies and put forward the concept framwork of “resource connotation mining, customer value optimization, value radiation and coordination” to describe the internal logic of achieving business sustainability, social sustainability and ecological sustainability. The paper also matches the ten sustainable business model innovation strategies with the nine common prototype strategies identified by foreign scholars. Finally, on the basis of in-depth analysis of the realistic constraints of China’s agricultural development, the paper believes that the innovation of agricultural sustainable business model is a creative response to the constraints of modern agricultural development.
Research on water pollution prediction of township enterprises based on support vector regression machine
Authors: Wang Yue , Xue Song , Ding Junming
Published: January 2021

The construction and development of township enterprises plays a key role in promoting the development of rural economy. With the implementation of the rural revitalization strategy, township enterprises develop rapidly, but there are problems in the development process that have a negative impact on the quality of local rural water environment. Rural water environment is related to the health of farmers, the healthy development of agriculture and the sustainable development of rural areas, so it is necessary to predict the water pollution of township enterprises. The application of support vector regression forecasting model to the prediction of water pollution of township enterprises can better predict the water pollution of township enterprises with the characteristics of complexity, nonlinear and small sample. This intelligent forecasting method will help to scientifically prevent the development of township enterprises from having negative impact on the quality of local water environment.