bluuebunny/crossref_metadata_2025 huggingface dataset:
Active suppression prevents the return of threat memory in humans
Authors: Wang Ye , Zhu Zijian , Hu Jingchu , Schiller Daniela , Li Jian
Published: May 2021

Unbidden distressing memories inflict serious damage on mental health. Extant research highlights the importance of associative learning in modulating aversive memory. We report that conscious active suppression eliminates learned fear responses independent of memory triggers and is related to individual difference in thought control ability; in contrast, thought diversion only reduces cue-specific fear response. These results suggest potential avenues for treatment of persistent maladaptive memories by engaging declarative mnemonic control mechanisms.
Optical interferometry based micropipette aspiration provides real-time sub-nanometer spatial resolution
Authors: Berardi Massimiliano , Bielawski Kevin , Rijnveld Niek , Gruca Grzegorz , Aardema Hilde , van Tol Leni , Wuite Gijs , Akca B. Imran
Published: May 2021

Micropipette aspiration (MPA) is an essential tool in mechanobiology; however, its potential is far from fully exploited. The traditional MPA technique has limited temporal and spatial resolution and requires extensive post processing to obtain the mechanical fingerprints of samples. Here, we develop a MPA system that measures pressure and displacement in real time with sub-nanometer resolution thanks to an interferometric readout. This highly sensitive MPA system enables studying the nanoscale behavior of soft biomaterials under tension and their frequency-dependent viscoelastic response.
Telomere damage promotes vascular smooth muscle cell senescence and immune cell recruitment after vessel injury
Authors: Uryga Anna K. , Grootaert Mandy O. J. , Garrido Abel M. , Oc Sebnem , Foote Kirsty , Chappell Joel , Finigan Alison , Rossiello Francesca , d’Adda di Fagagna Fabrizio , Aravani Dimitra , Jorgensen Helle F. , Bennett Martin R.
Published: May 2021

Accumulation of vascular smooth muscle cells (VSMCs) is a hallmark of multiple vascular pathologies, including following neointimal formation after injury and atherosclerosis. However, human VSMCs in advanced atherosclerotic lesions show reduced cell proliferation, extensive and persistent DNA damage, and features of premature cell senescence. Here, we report that stress-induced premature senescence (SIPS) and stable expression of a telomeric repeat-binding factor 2 protein mutant (TRF2T188A) induce senescence of human VSMCs, associated with persistent telomeric DNA damage. VSMC senescence is associated with formation of micronuclei, activation of cGAS-STING cytoplasmic sensing, and induction of multiple pro-inflammatory cytokines. VSMC-specific TRF2T188A expression in a multicolor clonal VSMC-tracking mouse model shows no change in VSMC clonal patches after injury, but an increase in neointima formation, outward remodeling, senescence and immune/inflammatory cell infiltration or retention. We suggest that persistent telomere damage in VSMCs inducing cell senescence has a major role in driving persistent inflammation in vascular disease.
Global earthworm distribution and activity windows based on soil hydromechanical constraints
Authors: Ruiz Siul A. , Bickel Samuel , Or Dani
Published: May 2021

Earthworm activity modifies soil structure and promotes important hydrological ecosystem functions for agricultural systems. Earthworms use their flexible hydroskeleton to burrow and expand biopores. Hence, their activity is constrained by soil hydromechanical conditions that permit deformation at earthworm’s maximal hydroskeletal pressure (≈200kPa). A mechanistic biophysical model is developed here to link the biomechanical limits of earthworm burrowing with soil moisture and texture to predict soil conditions that permit bioturbation across biomes. We include additional constraints that exclude earthworm activity such as freezing temperatures, low soil pH, and high sand content to develop the first predictive global map of earthworm habitats in good agreement with observed earthworm occurrence patterns. Earthworm activity is strongly constrained by seasonal dynamics that vary across latitudes largely due to soil hydromechanical status. The mechanistic model delineates the potential for earthworm migration via connectivity of hospitable sites and highlights regions sensitive to climate.
Role of avoided crossing and weak value amplification on enhanced Faraday effect in magnetoplasmonic systems
Authors: Nayak Jeeban K. , Guchhait Shyamal , Singh Ankit K. , Ghosh Nirmalya
Published: May 2021

Enhancement of magneto-optical effects in hybrid magneto-plasmonic systems has attracted considerable recent attention because of their potential for building non-reciprocal nanophotonic devices. Quantitative understanding of the fundamental origin and contributing mechanisms for the enhancement is crucial for optimizing applications. Here, we unravel different physical origins of the giant enhancement of Faraday rotation and ellipticity in a hybrid magneto-plasmonic system, namely, waveguided magneto-plasmonic crystal for excitation with transverse electric (TE) and transverse magnetic (TM) polarized light. With TE polarization excitation, where the surface plasmons are not directly excited, the natural weak value amplification of Faraday effects appearing due to the spectral domain interference of Fano resonance is the dominant cause of the enhancement. For TM polarization excitation, on the other hand, waveguide-plasmon strong coupling and its universal manifestation of avoided crossing plays an important role, leading to maximum enhancement of the magneto-optical effects in the avoided crossing regime.
Hard magnet topological semimetals in XPt3 compounds with the harmony of Berry curvature
Authors: Markou Anastasios , Gayles Jacob , Derunova Elena , Swekis Peter , Noky Jonathan , Zhang Liguo , Ali Mazhar N. , Sun Yan , Felser Claudia
Published: May 2021

Topological magnetic semimetals, like Co3Sn2S2 and Co2MnGa, display exotic transport properties, such as large intrinsic anomalous (AHE) due to uncompensated Berry curvature. The highly symmetric XPt3 compounds exhibit anti-crossing gapped nodal lines, a driving mechanism in the intrinsic Berry curvature Hall effects. Uniquely, these compounds contain two sets of gapped nodal lines that harmoniously dominate the Berry curvature in this complex multi band system. We calculate a maximum AHE of 1965 S cm-1 in the CrPt3 by first principles electronic structure. We have grown high-quality CrPt3 thin films with perpendicular magnetic anisotropy by magnetron sputtering and measured a robust AHE of 1750 S cm−1 for different sputtering growth conditions. Additionally, the cubic films display an easy magnetic axis along [111] direction. The facile and scalable fabrication of these materials is prime candidates for integration into topological devices.
Solving quasiparticle band spectra of real solids using neural-network quantum states
Authors: Yoshioka Nobuyuki , Mizukami Wataru , Nori Franco
Published: May 2021

Establishing a predictive ab initio method for solid systems is one of the fundamental goals in condensed matter physics and computational materials science. The central challenge is how to encode a highly-complex quantum-many-body wave function compactly. Here, we demonstrate that artificial neural networks, known for their overwhelming expressibility in the context of machine learning, are excellent tool for first-principles calculations of extended periodic materials. We show that the ground-state energies in real solids in one-, two-, and three-dimensional systems are simulated precisely, reaching their chemical accuracy. The highlight of our work is that the quasiparticle band spectra, which are both essential and peculiar to solid-state systems, can be efficiently extracted with a computational technique designed to exploit the low-lying energy structure from neural networks. This work opens up a path to elucidate the intriguing and complex many-body phenomena in solid-state systems.
Continuous flow strategies for using fluorinated greenhouse gases in fluoroalkylations
Authors: Fu Wai Chung , MacQueen Preston M. , Jamison Timothy F.
Published: May 2021

This review highlights recent advances in continuous flow strategies toward enabling the use of fluorinated greenhouse gases in fluoroalkylations.
An efficient strontium-based combustion inhibitor of ammonium perchlorate with a 2D-MOF structure
Authors: Huang Yao , Peng Rufang , Jin Bo
Published: May 2021

A new strontium 2D-MOF was prepared and applied to the study of AP thermal decomposition.
Evaluation of osteochondral-like tissues using human freeze-dried cancellous bone and chondrocyte sheets to treat osteochondral defects in rabbits
Authors: Wongin Sopita , Wangdee Chalika , Nantavisai Sirirat , Banlunara Wijit , Nakbunnum Rapeepat , Waikakul Saranatra , Chotiyarnwong Pojchong , Roytrakul Sittiruk , Viravaidya-Pasuwat Kwanchanok
Published: May 2021

Human freeze-dried cancellous bone combined with human chondrocyte sheets have recently been used to construct an osteochondral-like tissue, which resembled a cartilage layer on a subchondral bone layer.
Inorganic material based macrophage regulation for cancer therapy: basic concepts and recent advances
Authors: Zhao Ruibo , Cao Jinping , Yang Xinyan , Zhang Quan , Iqbal Muhammad Zubair , Lu Jiaju , Kong Xiangdong
Published: May 2021

Advances in inorganic materials have been demonstrated to have great potential in macrophage regulation, which presents a novel approach to the generation of immune biomaterials, accelerating macrophage-based cancer treatments.
Design and synthesis of gene-directed caged cyclic nucleotides exhibiting cell type selectivity
Authors: Suzuki Akinobu Z. , Sakano Taichi , Sasaki Hirona , Watahiki Rei , Sone Masaki , Horikawa Kazuki , Furuta Toshiaki
Published: May 2021

A new caging group was designed that can be photoactivated in the presence of an exogenously expressed enzyme.
Ultralong room-temperature phosphorescence remarkably weakened by halogenation-induced molecular packing in hexaphenylmelamine derivatives
Authors: Guo Qiang , Zhou Shiyi , Li Xiaoyu , Tao Li , Li Mengke , Su Shi-Jian , Wan Danyang , Li Jie
Published: May 2021

The ultralong room-temperature phosphorescence (RTP) properties of a series of pure organic halogenated hexaphenylmelamine (HPM) derivatives were remarkably weakened by the subtle change of halogenation-induced molecular packing.
Heterogeneous postassembly modification of zirconium metal–organic cages in supramolecular frameworks
Authors: Liu Guoliang , Yang Ziqi , Zhou Mi , Wang Yuxiang , Yuan Daqiang , Zhao Dan
Published: May 2021

A zirconium metal–organic cage decorated with acrylate functional groups, ZrT-1-AA, was synthesized via heterogeneous postassembly modification with a high efficiency and easy work-up protocol.
In situ creation of multi-metallic species inside porous silicate materials with tunable catalytic properties
Authors: Liu Yang-Yang , Zhan Guo-Peng , Wu Chuan-De
Published: May 2021

A porous metal silicate material templated by a discrete coordination complex demonstrates unique catalytic properties in catalysis by synergistically activating different reactant molecules via different non-noble metal sites inside the pores.
Zirconium ion-mediated assembly of a single quantum dot-based nanosensor for kinase assay
Authors: Li Yueying , Liu Qian , Cui Lin , Liu Wenjing , Qiu Jian-Ge , Zhang Chun-yang
Published: May 2021

Zirconium ion-mediated assembly of a single quantum dot-based nanosensor enables sensitive detection of protein kinases and polynucleotide kinases.
The influence mechanism of the molecular structure on the peak current and peak potential in electrochemical detection of typical quinolone antibiotics
Authors: Li Jiawei , Xue Qiang , Chen Tao , Liu Fei , Wang Qun , Chang Chunwen , Lu Xiaohua , Zhou Taogeng , Niwa Osamu
Published: May 2021

Based on the influence mechanism of molecular structures, our calculation results match well with the experimental result.
Refinement and extension of COSMO-RS-trained fragment contribution models for predicting the partition properties of C10–20 chlorinated paraffin congeners
Authors: Endo Satoshi
Published: May 2021

New COSMO-RS-trained fragment contribution models provided quantum chemically based predictions for a range of chlorinated paraffin congener groups and mixtures regarding partition properties and their temperature dependence.
Phenyl lactic acid alleviates Samonella Typhimurium-induced colitis via regulating microbiota composition, SCFA production and inflammatory responses
Authors: Zhou Qingqing , Gu Rongcheng , Xue Bingyao , Li Ping , Gu Qing
Published: May 2021

PLA alleviates S. Typhimurium-induced colitis via decreasing the spleen enlargement and liver enzyme (AST and ALT) activities, and regulating microbiota, SCFA metabolism and inflammatory levels.
In vitrodigestion of food grade TiO2(E171) and TiO2nanoparticles: physicochemical characterization and impact on the activity of digestive enzymes
Authors: Dudefoi William , Rabesona Hanitra , Rivard Camille , Mercier-Bonin Muriel , Humbert Bernard , Terrisse Hélène , Ropers Marie-Hélène
Published: May 2021

Titanium dioxide remains chemically stable in simulated digestive fluids and slows down the metabolism of carbohydrates in the mouth.
Electrochemical oxidation of biomass derived 5-hydroxymethylfurfural (HMF): pathway, mechanism, catalysts and coupling reactions
Authors: Yang Yuechao , Mu Tiancheng
Published: May 2021

HMF electrooxidation is emerging as a powerful and promising method to produce a wide range of high-value chemicals on account of mild operation conditions, controllable selectivity, and scalability.
A microfluidic device enabling deterministic single cell trapping and release
Authors: Chai Huichao , Feng Yongxiang , Liang Fei , Wang Wenhui
Published: May 2021

A passive strategy for deterministic single-cell trapping and release.
Electrochemistry in an optical fiber microcavity – optical monitoring of electrochemical processes in picoliter volumes
Authors: Gabler Tomasz , Krześniak Andrzej , Janik Monika , Myśliwiec Anna , Koba Marcin , Buczyńska Joanna , Jönsson-Niedziółka Martin , Śmietana Mateusz
Published: May 2021

In this work, we demonstrate a novel method for multi-domain analysis of properties of analytes in volumes as small as picoliters, combining electrochemistry and optical measurements.
Self-healing ferroelastic metal–organic framework sensing guests, pressure and chemical environment
Authors: Półrolniczak Aleksandra , Katrusiak Andrzej
Published: May 2021

A pleochroic MOF is ferroelastic under high pressure, but it is not affected by temperature changes. The transition pressure depends on the guest and environment. The crystals are capable of self-healing under normal conditions.
Mechanical metal activation for Ni-catalyzed, Mn-mediated cross-electrophile coupling between aryl and alkyl bromides
Authors: Wu Sisi , Shi Weijia , Zou Gang
Published: May 2021

Liquid-assisted grinding enables nickel-catalyzed, manganese-mediated cross-electrophile coupling between aryl and alkyl bromides under chemical activator-free and non-anhydrous conditions.
Electrochromic response and control of plasmonic metal nanoparticles
Authors: Kim Yoonhee , Cha Seungsang , Kim Jae-Ho , Oh Jeong-Wook , Nam Jwa-Min
Published: May 2021

Here, we reviewed the electrochromic behaviour and underlying mechanisms of plasmonic metal nanoparticles in the visible spectral range, and discussed the recent key progresses in understanding, controlling and utilizing plasmonic electrochromism.
An aryl thiol–vinyl azide coupling reaction and a thiol–vinyl azide coupling/cyclization cascade: efficient synthesis of β-ketosulfides and arene-fused 5-methylene-2-pyrrolidinone derivatives
Authors: Wang Yong , Wang Yu-Jiao , Liang Xian-Chen , Shen Mei-Hua , Xu Hua-Dong , Xu Defeng
Published: May 2021

A radical addition–fragmentation intermediate of vinyl azide can be intercepted by a neighbouring ester group. β-Ketosulfides could be a convenient platform for S-heterocycle synthesis.
Convergent total synthesis of corallocin A
Authors: Mashiko Tomoya , Nakazato Yuta , Katsumura Yuta , Kasamatsu Akihiko , Adachi Shinya , Kamo Shogo , Matsuzawa Akinobu , Sugita Kazuyuki
Published: May 2021

The first total synthesis of corallocin A was archieved via Suzuki coupling and other key reactions.
Aryne-mediated [2,3]-sigmatropic rearrangement of tertiary 2,3-allenylamines bearing an electron-withdrawing group at the α-position
Authors: Han Lu , Zhang Xue-Ting , Xie Dong , Tian Shi-Kai
Published: May 2021

An unprecedented [2,3]-sigmatropic rearrangement reaction of quaternary 2,3-allenylammonium ylides, generated in situ from tertiary 2,3-allenylamines and arynes, has been established, delivering 2-vinylallyamines or 1-amino-1,3-dienes.
Effect of the conjugation pathway on the electronic structures of p–π* conjugated polymers with fused borepin units
Authors: Adachi Yohei , Arai Fuka , Sakabe Mitsuru , Ohshita Joji
Published: May 2021

Borepin, an aromatic ring system with tricoordinate boron, was incorporated into p–π* conjugated polymers. The polymers exhibited characteristic optical responses upon the addition of cyanide anions in solution.
Potential carbon nanomaterials as additives for state-of-the-art Nafion electrolyte in proton-exchange membrane fuel cells: a concise review
Authors: Vinothkannan Mohanraj , Kim Ae Rhan , Yoo Dong Jin
Published: May 2021

We summarize here recent advances in carbon nanomaterials as additives for the state-of-the-art Nafion electrolytes for proton-exchange membrane fuel cells.
Thermosensitive alginate–gelatin–nitrogen-doped carbon dots scaffolds as potential injectable hydrogels for cartilage tissue engineering applications
Authors: Ghanbari Mojgan , Salavati-Niasari Masoud , Mohandes Fatemeh
Published: May 2021

The low gelation time (120 s) and gelation temperature at body temperature (37 °C) make oxidized alginate/gelatin/NCDs hydrogels suitable as temperature-sensitive injectable hydrogels for cartilage tissue engineering.
The origins of charge separation in anisotropic facet photocatalysts investigated through first-principles calculations
Authors: Chan Shun-Chiao , Cheng Yu-Lin , Chang Bor Kae , Hong Che-Wun
Published: May 2021

The anisotropic (110)/(100) facet junction built-in potential in SrTiO3is estimated at 2.9 V using DFT for the first time, which can help in further design and development of efficient photocatalysts using such anisotropic-facet engineering.
Rhododendron and Japanese Knotweed: invasive species as innovative crops for second generation biofuels for the ionoSolv process
Authors: Hennequin Louis M. , Polizzi Karen , Fennell Paul S. , Hallett Jason P.
Published: May 2021

Japanese Knotweed (Fallopia japonica) and Rhododendron (Rhododendron ponticum), two invasive species in the UK that are an environmental threat and economic burden, can be integrated into a flexible ionic liquid based biorefinery process to produce bioenergy and chemicals.
Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency
Authors: Lu Ying , Zhao Zhihang , Fan Xianpeng , Cao Xinyu , Hai Mingtan , Yang Zhou , Zheng Kun , Lu Jiaxin , Zhang Jingnan , Ma Yongmei , Zhang Rongben , Fang Shibi
Published: May 2021

The double-layer encapsulation by a highly crystalline ZrO2/polydiphenylsiloxane composite affords 11.2% and 64.8% higher LEE respectively than that of OE-7662 before and after sulfur vapor erosion.
Determination of chloropropanol with an imprinted electrochemical sensor based on multi-walled carbon nanotubes/metal–organic framework composites
Authors: Han Shuang , Ding Yuxin , Teng Fu , Yao Aixin , Leng Qiuxue
Published: May 2021

In this study, cMWCNT/MOF-199 composites were used as the modified electrodes, and a MIECS having specific recognition of 3-MCPD was prepared by electrochemical polymerization for selective analysis of 3-MCPD in foodstuffs.
Preparation of perovskite CsPb(BrxI1−x)3quantum dots at room temperature
Authors: Li Ying , Qian Jun , Zhao Di , Song Rong
Published: May 2021

Here, we propose a method for preparing red perovskite CsPb(BrxI1−x)3 quantum dots (QDs) at room temperature and successfully applied to WLEDs.
Tubular g-C3N4/carbon framework for high-efficiency photocatalytic degradation of methylene blue
Authors: Li Haicheng , Zang Linlin , Shen Fengtong , Wang Libin , Sun Liguo , Yuan Fulong
Published: May 2021

Tubular g-C3N4 grown on a carbon framework increased the surface area of bulk g-C3N4, enhanced the absorption of visible light and promoted the photocatalytic performance.
Synthesis of spiro[4.4]thiadiazole derivatives via double 1,3-dipolar cycloaddition of hydrazonyl chlorides with carbon disulfide
Authors: Wang Kai-Kai , Li Yan-Li , Guo Dong-Guang , Pan Peng-Tao , Sun Aili , Chen Rongxiang
Published: May 2021

A simple and convenient synthesis method for spiro[4.4]thiadiazole derivatives via double [3 + 2] 1,3-dipolar cycloaddition of nitrilimines generated in situ from hydrazonyl chlorides with carbon disulfide has been achieved.
Study of deposition parameters and growth kinetics of ZnO deposited by aerosol assisted chemical vapor deposition
Authors: Sánchez-Martín Sergio , Olaizola S. M. , Castaño E. , Urionabarrenetxea E. , Mandayo G. G. , Ayerdi I.
Published: May 2021

Impact of deposition parameters, microstructure and growth kinetics analysis of ZnO grown by Aerosol-assisted Chemical Vapor Deposition (AACVD).
Correction: Green synthesis of nitrogen-doped multiporous carbons for oxygen reduction reaction using water-caltrop shells and eggshell waste
Authors: Hsu Chun-Han , Pan Zheng-Bang , Qu Hau-Ting , Chen Chuan-Ren , Lin Hong-Ping , Sun I-Wen , Huang Ching-Ying , Li Chun-Han
Published: May 2021

Correction for ‘Green synthesis of nitrogen-doped multiporous carbons for oxygen reduction reaction using water-caltrop shells and eggshell waste’ by Chun-Han Hsu et al., RSC Adv., 2021, 11, 15738–15747. DOI: 10.1039/D1RA02100A.
A systematic study of post-activation temperature dependence on photoelectrochemical water splitting of one-step synthesized FeOOH CF photoanodes with erratically loaded ZrO2
Authors: Kim Sarang , Mahadik Mahadeo A. , Anushkkaran Periyasamy , Chae Weon-Sik , Choi Sun Hee , Jang Jum Suk
Published: May 2021

The erratically ZrO2 loaded hematite cauliflower photoanodes quenched at 650 °C showed 14 times higher PEC performance than the conventionally prepared hematite nanorod photoanode (PQ650).
Soft synthetic microgels as mimics of mycoplasma
Authors: Büning Dominic , Schumacher Jens , Helling Alexander , Chakroun Ramzi , Ennen-Roth Franka , Gröschel Andre H. , Thom Volkmar , Ulbricht Mathias
Published: May 2021

Soft synthetic microgels with the size of smallest species of and otherwise similar to real mycoplasma, especially with respect to their deformability, have been obtained by inverse miniemulsion terpolymerization of acrylamides.
Dual functionality of over-lithiated NMC for high energy silicon-based lithium-ion batteries
Authors: Dose Wesley M. , Kim Soojeong , Liu Qian , Trask Stephen E. , Dunlop Alison R. , Ren Yang , Zhang Zhengcheng , Fister Timothy T. , Johnson Christopher S.
Published: May 2021

Over lithiated Li1+xNMCO2 is introduced as a dual-functional lithium source and cathode material to increase the lithium inventory and significantly improve the energy density and cycle life of lithium-ion batteries with a Si-based anode.
Tuning the performance of a Mg negative electrode through grain boundaries and alloying toward the realization of Mg batteries
Authors: Tian Hong-Kang , Jalem Randy , Matsui Masaki , Mandai Toshihiko , Somekawa Hidetoshi , Tateyama Yoshitaka
Published: May 2021

Tilt grain boundaries, side surfaces (with respect to the (0001) surface) and a proper doping/alloying, such as Ca, in Mg electrode can accelerate the dissolution of the Mg atoms and result in higher current density.
Direct synthesis of 1T-phase MoS2 nanosheets with abundant sulfur-vacancies through (CH3)4N+ cation-intercalation for the hydrogen evolution reaction
Authors: Jin Hongqiang , Yu Yu , Shen Qikai , Li Peipei , Yu Jia , Chen Weiming , Wang Xin , Kang Zhuo , Zhu Lei , Zhao Runqing , Zheng Lirong , Song Weiguo , Cao Changyan
Published: May 2021

An efficient route based on in situ TMA cation ((CH3)4N+) intercalation is reported for direct synthesis of single-layer 1T-MoS2 nanosheets with abundant sulfur vacancies for the hydrogen evolution reaction.
The efficacy and safety of Curcuma longa extract and curcumin supplements on osteoarthritis: a systematic review and meta-analysis
Authors: Zeng Liuting , Yu Ganpeng , Hao Wensa , Yang Kailin , Chen Hua
Published: May 2021

Objective: To assess the efficacy and safety of Curcuma longa extract and curcumin supplements on osteoarthritis (OA).

Methods: The databases such as Pubmed and Cochrane Library were searched to collect the article about Curcuma longa extract and curcumin in the treatment of OA. Then, randomized controlled trials (RCTs) were selected and their data were extracted. Finally, the RevMan5.3 was utilized for risk of bias assessment and meta-analysis, the STATA15.0 were utilized for publication bias assessment, and GRADE tool were used for the evidence quality assessment of primary outcomes.

Results: A total of 15 RCTs involving 1621 participants were included. (1) Compared with placebo, Curcuma longa extract and curcumin (C.) can decrease the visual analog scale (VAS) and The Western Ontario and McMaster Universities (WOMAC) score-pain, the WOMAC score-function and the WOMAC score-stiffness. In terms of adverse events, Curcuma longa extract and curcumin are comparable with those of placebo. (2) Compared with non-steroidal anti-inflammatory drugs (NSAIDs), Curcuma longa extract and curcumin have similar effects on joint pain, function and stiffness. The incidence of adverse events in Curcuma longa extract and curcumin was lower. (3) Compared with the NSAIDs group, C.+NSAIDs can also decrease the VAS and WOMAC score-pain, the WOMAC score-function and the WOMAC score-stiffness. In terms of adverse events, the addition of Curcuma longa extract and curcumin to NSAIDs did not increase adverse events.

Conclusion: Curcuma longa extract and curcumin may be a safer and effective supplement for OA patients. It is recommended to use Curcuma longa extract and curcumin supplement for OA patients for more than 12 weeks.
Practice Mediates Bidirectional Dual-Task Interference When Performing a Novel Sequential Nonword Repetition Task
Authors: Whitfield Jason A. , Holdosh Serena R.
Published: May 2021

Introduction

The current study examined the extent to which practice amount mediates dual-task interference patterns associated with concurrent performance of a novel speech task and attention-demanding visuomotor task.

Method

A Sequential Nonword Repetition Task was used to examine the effect of practice on interference associated with concurrent performance of a Visuomotor Pursuit Task. Twenty-five young adult participants were assigned to either an Extended Practice Group or a Limited Practice Group and performed a novel Sequential Nonword Repetition Task in isolation and while performing a concurrent visuomotor pursuit rotor task.

Results

Participants in the Limited Practice Group who were afforded a limited amount of practice exhibited dual-task interference (i.e., dual-task performance reductions) for both the speech and visuomotor tasks (i.e., bidirectional dual-task interference). Conversely, participants in the Extended Practice Group who were afforded extended practice exhibited little-to-no observable dual-task interference on the nonword repetition task.

Conclusion

Data from the current investigation suggest that the amount of initial practice mediates the degree of dual-task interference observed when a novel speech production task is performed with an attention-demanding Visuomotor Pursuit Task.

Supplemental Material

https://doi.org/10.23641/asha.14608071
Augmented reality display of neurosurgery craniotomy lesions based on feature contour matching
Authors: Zhang Hao , Sun Qi‐Yuan , Liu Zhen‐Zhong
Published: May 2021

Traditional neurosurgical craniotomy primarily uses two‐dimensional cranial medical images to estimate the location of a patient’s intracranial lesions. Such work relies on the experience and skills of the doctor and may result in accidental injury to important intracranial physiological tissues. To help doctors more intuitively determine patient lesion information and improve the accuracy of surgical route formulation and craniotomy safety, an augmented reality method for displaying neurosurgery craniotomy lesions based on feature contour matching is proposed. This method uses threshold segmentation and region growing algorithms to reconstruct a 3‐D Computed tomography image of the patient’s head. The augmented reality engine is used to adjust the reconstruction model’s relevant parameters to meet the doctor’s requirements and determine the augmented reality matching method for feature contour matching. By using the mobile terminal to align the real skull model, the virtual lesion model is displayed. Using the designed user interface, doctors can view the patient’s personal information and can zoom in, zoom out, and rotate the virtual model. Therefore, the patient’s lesions information can be visualized accurately, which provides a visual basis for preoperative preparation.
A survey of learning‐based robot motion planning
Authors: Wang Jiankun , Zhang Tianyi , Ma Nachuan , Li Zhaoting , Ma Han , Meng Fei , Meng Max Q.‐H.
Published: May 2021

A fundamental task in robotics is to plan collision‐free motions among a set of obstacles. Recently, learning‐based motion‐planning methods have shown significant advantages in solving different planning problems in high‐dimensional spaces and complex environments. This article serves as a survey of various different learning‐based methods that have been applied to robot motion‐planning problems, including supervised, unsupervised learning, and reinforcement learning. These learning‐based methods either rely on a human‐crafted reward function for specific tasks or learn from successful planning experiences. The classical definition and learning‐related definition of motion‐planning problem are provided in this article. Different learning‐based motion‐planning algorithms are introduced, and the combination of classical motion‐planning and learning techniques is discussed in detail.
Spectral recovery‐guided hyperspectral super‐resolution using transfer learning
Authors: Zhang Shaolei , Fu Guangyuan , Wang Hongqiao , Zhao Yuqing
Published: May 2021

Single hyperspectral image (HSI) super‐resolution (SR) has attracted researcher's attention; however, most existing methods directly model the mapping between low‐ and high‐resolution images from an external training dataset, which requires large memory and computing resources. Moreover, there are few such available training datasets in real cases, which prevent deep‐learning‐based methods from further improving performance. Here, a novel single HSI SR method based on transfer learning is proposed. The proposed method is composed of two stages: spectral down‐sampled image SR reconstruction based on transfer learning and HSI reconstruction via spectral recovery module. Instead of directly applying the learned knowledge from the colour image domain to HSI SR, the spectral down‐sampled image is fed into a spatial SR model to obtain a high‐resolution image, which acts as a bridge between the colour image and HSI. The spectral recovery network is used to restore the HSI from the bridge image. In addition, pre‐training and collaborative fine‐tuning are proposed to promote the performance of SR and spectral recovery. Experiments on two public HSI datasets show that the proposed method achieves promising SR performance with a small paired HSI dataset.
Optimal synthesis of reconfigurable planar arrays for monopulse radar applications: Use of subarrays and distributions with common aperture tail
Authors: Qi Zhengdong , Zhang Xinggan , Bai Yechao , Wang Qiong , Yu Chunhua , Chen Hao , Lu Yangyi , Wu Shaopeng
Published: May 2021

An approach for the synthesis of sum and difference patterns in monopulse antennas is described. The proposed approach provides a significant reduction in the complexity of the beam‐forming network that is fulfilled by reducing the number of array elements and keeping the elements at the edges of the array that share common excitations for both sum and difference modes. An iterative constrained optimisation method is used where the non‐convex lower‐bound constraints on the beam pattern are cast as an equivalent multi‐convex optimisation problem while concurrently minimising a reweighted l1‐norm of the magnitudes of the elements in the beam‐forming weight vector. Thus, better radiation performance of beam pattern (e.g. narrower beamwidth, lower peak sidelobe level), a much narrower spatial aperture and a smaller number of elements can be achieved compared with the case of uniformly spaced arrays. To compensate for array imperfection in practice, robust beam pattern constraints are derived in the optimisation stage using a worst‐case performance optimisation technique. Numerical examples show the effectiveness and advantages of the proposed synthesis approach.
An advanced multipole model for (216) Kleopatra triple system
Authors: Brož M. , Marchis F. , Jorda L. , Hanuš J. , Vernazza P. , Ferrais M. , Vachier F. , Rambaux N. , Marsset M. , Viikinkoski M. , Jehin E. , Benseguane S. , Podlewska-Gaca E. , Carry B. , Drouard A. , Fauvaud S. , Birlan M. , Berthier J. , Bartczak P. , Dumas C. , Dudziński G. , Ďurech J. , Castillo-Rogez J. , Cipriani F. , Colas F. , Fetick R. , Fusco T. , Grice J. , Kryszczynska A. , Lamy P. , Marciniak A. , Michalowski T. , Michel P. , Pajuelo M. , Santana-Ros T. , Tanga P. , Vigan A. , Vokrouhlický D. , Witasse O. , Yang B.
Published: May 2021

Aims.To interpret adaptive-optics observations of (216) Kleopatra, we need to describe an evolution of multiple moons orbiting an extremely irregular body and include their mutual interactions. Such orbits are generally non-Keplerian and orbital elements are not constants.

Methods.Consequently, we used a modifiedN-body integrator, which was significantly extended to include the multipole expansion of the gravitational field up to the orderℓ= 10. Its convergence was verified against the ‘brute-force’ algorithm. We computed the coefficientsCℓm,Sℓmfor Kleopatra’s shape, assuming a constant bulk density. For Solar System applications, it was also necessary to implement a variable distance and geometry of observations. Ourχ2metric then accounts for the absolute astrometry, the relative astrometry (second moon with respect to the first), angular velocities, and silhouettes, constraining the pole orientation. This allowed us to derive the orbital elements of Kleopatra’s two moons.

Results.Using both archival astrometric data and new VLT/SPHERE observations (ESO LP 199.C-0074), we were able to identify the true periods of the moons,P1= (1.822359 ± 0.004156) d,P2= (2.745820 ± 0.004820) d. They orbit very close to the 3:2 mean-motion resonance, but their osculating eccentricities are too small compared to other perturbations (multipole, mutual), meaning that regular librations of the critical argument are not present. The resulting mass of Kleopatra,m1= (1.49 ± 0.16) × 10−12M⊙or 2.97 × 1018kg, is significantly lower than previously thought. An implication explained in the accompanying paper is that (216) Kleopatra is a critically rotating body.
Système semencier et pureté des semences dans un contexte d’utilisation d’OGM : le cas du coton Bt au Burkina Faso
Authors: Bourgou Larbouga , Fok Michel
Published: May 2021

Depuis la commercialisation du coton Bt, la question de la pureté des semences utilisées par les producteurs est peu abordée, encore moins en relation avec l’analyse du système semencier dans le pays concerné. Cet article étudie le cas du Burkina Faso en 2015, pays où la couverture des surfaces en coton transgénique avec deux gènes Bt est restée partielle, jusqu’à sa suspension décidée la même année. En se basant sur les seuils de présence de gènes Bt retenus dans l’étude pour déclarer la nature conventionnelle ou transgénique des parcelles échantillonnées, 29,3 % des parcelles supposées conventionnelles l’étaient effectivement, alors que 92,6 % des parcelles supposées transgéniques l’étaient effectivement. Par contre, seulement 40 % des parcelles supposées transgéniques l’étaient bien si l’on se base sur le seuil de présence de gènes Bt attendu dans des parcelles transgéniques effectivement installées avec des semences Bollgard II suffisamment pures. L’examen du système semencier permet de lui attribuer une partie des défauts de pureté observés. Par ailleurs, si l’on considère la chronologie des événements jusqu’à la livraison des semences transgéniques par Monsanto, ces semences ne pouvaient pas contenir systématiquement les deux gènes Bt. Un tel défaut initial s’est maintenu, voire accentué par la suite. Il a certainement réduit dès le départ l’efficacité du coton Bt et, pis encore, la durabilité de son utilisation en facilitant la sélection de ravageurs résistants à chacun des deux gènes utilisés, voire simultanément aux deux. Le cas étudié souligne l’importance, pour l’efficacité et la durabilité de l’utilisation des semences transgéniques, d’avoir un système semencier qui assure et préserve la pureté des semences produites. Il révèle aussi, indépendamment de l’utilisation de ces semences, le besoin d’ajuster le système internalisé de production de semences cotonnières en Afrique francophone.
Experimental Study on Biogas Digester Combined with Solar Heating System
Authors: Zhao Jinhui , Bai Xuexiu , Han Xuwei
Published: May 2021

In order to solve the problem of low gas production of biogas digester fermented at natural temperature in winter and possibly freezing biogas digester in northern cold areas, the biogas digester combined with solar heating system is proposed to maintain the normal fermentation temperature of biogas digester and ensure the continuous and efficient gas production of biogas digester throughout the year. Through the experiment and analysis of the system, in cold area, the temperature of biogas digester can be maintained above 12.5 °C, which can meet the temperature requirements of normal fermentation in biogas digester, so it is concluded that developing solar heating biogas digester project is feasible in cold area.
Application of soft sensor technology in HVAC system test
Authors: Guo Changbao
Published: May 2021

With the rapid development of modern society, the measurement and control requirements of key variables of air conditioning test technology are also increasing. When the parameters of HVAC system are measured and controlled, there are a large number of sensors and instruments used. When sensor failure or measurement error distortion occurs, the air conditioning system cannot operate normally and automatically. At the same time, some variables in the test parameters cannot be directly collected by the sensor. In order to solve these problems, researchers have focused on soft measurement technology in recent years, which provides a good breakthrough for the measurement and control of air conditioning system test parameters. This paper expounds the application of soft measurement technology in HVAC system.
Design of On-line Monitoring System of Transmission Line Based on Beidou Short Message
Authors: Deng Gui’liang , Luo Jing , Gui Baolin
Published: May 2021

In view of the problem that the lack of wireless mobile network in remote mountainous areas makes the transmission line online monitoring data transmission difficult, this paper proposes a data transmission scheme using Beidou short message communication. And aiming at the problems of small data transmission and low reliability in Beidou short message communication, a new data coding method is designed. The actual results show that: the proposed transmission line online monitoring system based on Beidou short message communication has a high success rate of transmission line information collection, which is an efficient and reliable scheme for transmission line online monitoring in remote mountainous areas.
Influence of Cable Temperature Rise on PDC Method Test Results of Water Tree Aged Cables
Authors: Guo Jin Ming , Wang Fei Feng
Published: May 2021

There is a certain temperature rise in the field running cable because of the load bearing. To study the influence of cable temperature rise on the polarization and depolarization current (PDC) method, 10kV XLPE short cables were accelerated aging three months by water needle electrode method, and the PDC method was used to test the new and aged cables under constant humidity. The polarization and depolarization current of the cable samples was analyzed, and the conductivity and low frequency dielectric loss spectra were obtained and inspected. The results show that: in the experiment selected test temperature, the change laws of conductivity of the new and aged cables are the same, and the conductivity gradually rose after a slight drop in 40 °C; in the dielectric loss spectrum, the polarization of the new sample is low and the polarization loss changes little with temperature, and the dielectric loss is mainly affected by the conductivity, so the test result is clearly divided into two regions. And water tree aged samples have strong polarization and are obviously affected by temperature, so their low frequency dielectric loss showed the trend of first rising and then decreasing and the maximum appeared at 60 °C.
Substation protection method for missing measurement information of transformer and bus connecting line
Authors: Liu Wei , Wang Yuxue , Wang Zengchao , Xu Zhile , Li Yiquan , Deng Xuyang , Liu Shidan , Liu Kun , Wen Minghao
Published: May 2021

In order to solve the problems of protection misoperation and refusing to operate caused by the lack of measurement information in smart substation, a substation protection method which can effectively eliminate the influence of transformer inrush current and bus CT saturation when the measurement information of substation and bus connecting line is missing is proposed. Through the theoretical analysis of current synthesis method based on Kirchhoff current law, it is proved that transformer inrush current and bus CT saturation will lead to the misjudgment of differential protection. Accordingly a new method of station protection is proposed to deal with the lack of measurement information. In order to verify the correctness of the method, taking a typical 220kV substation model as an example, PSCAD / EMTDC electromagnetic transient simulation software is used to simulate and verify different conditions and different types of faults. The results show that the proposed protection method can accurately eliminate the interference of transformer inrush current and bus CT saturation, ensure the correct action of differential protection, and improve the stability of substation when the measurement information is missing.
Optimization design of thermal system for industrial waste heat power generation
Authors: Sun Fengchang , Li Shiyue , Bai Zhonghua , Miao Changhai , Deng Xiaochuan , Yu Dogyang , Zhang Zhichao
Published: May 2021

In order to improve the utilization rate of industrial waste heat and improve the fine design level of waste heat power station, this paper constructs the mathematical model of waste heat boiler and steam turbine, and puts forward the optimization design method of thermal system of waste heat power generation project. By using typical cases, it is proved that there is the optimal design pressure of HRSG, which makes the power generation of the system maximum, and provides a method to improve the power generation of HRSG.
Design of Inverter Side of Modular Grid Simulator Based on Proportional integral-Quasi-proportional resonance Control
Authors: Xin Ren Huai , Yuan Xie , Kai Zhang
Published: May 2021

The tracking of a given voltage in the traditional double closed-loop proportional integral control in the current power grid simulator has problems such as static difference, delay and oscillation. It is proposed that the voltage outer loop and current inner loop of the inverter side of the power grid simulator adopt proportional integral and quasi-proportional resonance control respectively, and the topology of the inverter adopts a cascaded modular design to establish a single-phase inverter model. Compared with the traditional double closed-loop proportional-integral control, it is verified that the proportional-integral-quasi-proportional resonant controller can effectively improve the system’s ability to track the command voltage and the stability of the output voltage.
Research on the Coupling of Energy Consumption and High-quality Development in the Yellow River Basin
Authors: Zhao Jinhui , Tian Lin , Bai Yunlong , He Jiawei , Li Puxi
Published: May 2021

Understanding the energy development ideas of the Yellow River Basin has a very important impact on the high-quality development of the Yellow River Basin. Aiming at the restriction and promotion of energy consumption in the Yellow River Basin to its high-quality development, this article takes the nine provinces of the Yellow River as the research object, builds an evaluation model based on the data of the river basin from 2004 to 2017, and uses the entropy method and elastic coefficient method to study the coupling characteristics of watershed energy consumption for its high-quality development in time and space. The results show that the high-quality development level of the river basin is generally increasing, the consumption level is generally decreasing, and the coupling of energy consumption and high-quality development is optimized year by year. Finally, according to the coupling of energy consumption level and high-quality development level, a development strategy suitable for improvement is proposed.
Molecular dynamic simulation of the molecular characteristic and mechanical property of methane hydrate/ water/ ice mixture
Authors: Zhang Jiawei , Wang Bo
Published: May 2021

The microscopic molecular characteristic will impact on the mechanical property of hydrate. Thus, molecular dynamics simulation is employed to investigate the molecular characteristic and mechanical property of methane hydrate/ water/ ice mixture system. The brittle fracture occurred during the tensile deformation of the system. Besides, the maximum stress of the hydrate/ water/ ice mixture system is lower than that of intact hydrate system. The fracture strain of studied system is smaller than that of pure hydrate system. The order parameters F3 and F4 can be used for determining the fracture position of mixture system and the changing of micro configuration on the mixture interface.
Research and application of pressure decreasing technology of polymer material injection wells
Authors: Yang Taiwei , Yan Yu , Guo Shuzhao , Cai Qingqin , Yang Yang , Du Yuqiao
Published: May 2021

Injecting polymer materials is an important means to improve the ultimate recovery, maintain stable production and improve the development effect of the oil field in the high water cut period. However, in the development process of polymer flooding, with the continuous increase of the cumulative polymer injection, the problem of high-pressure under-injection frequently occurs in the injection well. In this paper, based on geological characteristics and plugging material analysis, the causes of high pressure/under-injection and production characteristics of different types of measure wells. To study and optimize the rubber breaking, degradation and synergistic acidification liquid system that are applicable to different blockage conditions can effectively improve the adaptability of the blockage liquid system; Meanwhile, the formation of a quick plugging process with the characteristic of “single-stage single-step injection + prescription formula structure” can effectively improve the success rate of polymer plugging process measures, providing strong technical support for polymer flooding technology.