bluuebunny/crossref_metadata_2025 huggingface dataset:
Different contributions of efferent and reafferent feedback to sensorimotor temporal recalibration
Authors: Arikan Belkis Ezgi , van Kemenade Bianca M. , Fiehler Katja , Kircher Tilo , Drewing Knut , Straube Benjamin
Published: November 2021

Adaptation to delays between actions and sensory feedback is important for efficiently interacting with our environment. Adaptation may rely on predictions of action-feedback pairing (motor-sensory component), or predictions of tactile-proprioceptive sensation from the action and sensory feedback of the action (inter-sensory component). Reliability of temporal information might differ across sensory feedback modalities (e.g. auditory or visual), which in turn influences adaptation. Here, we investigated the role of motor-sensory and inter-sensory components on sensorimotor temporal recalibration for motor-auditory (button press-tone) and motor-visual (button press-Gabor patch) events. In the adaptation phase of the experiment, action-feedback pairs were presented with systematic temporal delays (0 ms or 150 ms). In the subsequent test phase, audio/visual feedback of the action were presented with variable delays. The participants were then asked whether they detected a delay. To disentangle motor-sensory from inter-sensory component, we varied movements (active button press or passive depression of button) at adaptation and test. Our results suggest that motor-auditory recalibration is mainly driven by the motor-sensory component, whereas motor-visual recalibration is mainly driven by the inter-sensory component. Recalibration transferred from vision to audition, but not from audition to vision. These results indicate that motor-sensory and inter-sensory components contribute to recalibration in a modality-dependent manner.
Fibroblast transition to an endothelial “trans” state improves cell reprogramming efficiency
Authors: Mathison Megumi , Sanagasetti Deepthi , Singh Vivek P. , Pugazenthi Aarthi , Pinnamaneni Jaya Pratap , Ryan Christopher T. , Yang Jianchang , Rosengart Todd K.
Published: November 2021

Fibroblast reprogramming offers the potential for myocardial regeneration via in situ cell transdifferentiation. We explored a novel strategy leveraging endothelial cell plasticity to enhance reprogramming efficiency. Rat cardiac endothelial cells and fibroblasts were treated with Gata4, Mef2c, and Tbx5 (GMT) to assess the cardio-differentiation potential of these cells. The endothelial cell transdifferentiation factor ETV2 was transiently over-expressed in fibroblasts followed by GMT treatment to assess “trans-endothelial” cardio-differentiation. Endothelial cells treated with GMT generated more cTnT+ cells than did cardiac fibroblasts (13% ± 2% vs 4% ± 0.5%, p < 0.01). Cardiac fibroblasts treated with ETV2 demonstrated increased endothelial cell markers, and when then treated with GMT yielded greater prevalence of cells expressing cardiomyocyte markers including cTnT than did fibroblasts treated with GMT or ETV2 (10.3% ± 0.2% vs 1.7% ± 0.06% and 0.6 ± 0.03, p < 0.01). Rat cardiac fibroblasts treated with GMT + ETV2 demonstrated calcium transients upon electrical stimulation and contractility synchronous with surrounding neonatal cardiomyocytes, whereas cells treated with GMT or ETV2 alone failed to contract in co-culture experiments. Human cardiac fibroblasts treated with ETV2 and then GMT likewise demonstrated greater prevalence of cTnT expression than did cells treated with GMT alone (2.8-fold increase, p < 0.05). Cardiac fibroblast transitioning through a trans-endothelial state appears to enhance cardio-differentiation by enhancing fibroblast plasticity.
Comparison of ROX and HACOR scales to predict high-flow nasal cannula failure in patients with SARS-CoV-2 pneumonia
Authors: Valencia Carlos Fernando , Lucero Oscar David , Castro Onofre Casas , Sanko Andrey Alexandrovich , Olejua Peter Alfonso
Published: November 2021

The pandemic of SARSCov2 infection has created a challenge in health services worldwide. Some scales have been applied to evaluate the risk of intubation, such as the ROX and HACOR. The objective of this study is to compare the predictive capacity of the HACOR scale and the ROX index and define the optimal cut-off points. Study of diagnostic tests based on a retrospective cohort. Composite outcome was the proportion of patients that needed endotracheal intubation (ETI) or died of COVID19 pneumonia. Discrimination capacity was compared by the area under the curve of each of the two scales and the optimal cut-off point was determined using the Liu method. 245 patients were included, of which 140 (57%) required ETI and 152 (62%) had the composite end result of high-flow nasal cannula (HFNC) failure. The discrimination capacity was similar for the two scales with an area under receiver operating characteristic curve of 0.71 and 0.72 for the HACOR scale for the ROX index, respectively. The optimal cut-off point for the ROX index was 5.6 (sensitivity 62% specificity 65%), while the optimal cut-off point for the HACOR scale was 5.5 (sensitivity 66% specificity 65%). The HACOR scale and the ROX index have a moderate predictive capacity to predict failures to the HFNC strategy. They can be used in conjunction with other clinical variables to define which patients may require invasive mechanical ventilation.
Sustainable improvement and evaluation of the shifting smoothness of vehicle transmission
Authors: Li Yongxiang , Hu Chujin , Chen Zhenwen , Wang Chunhui , Li Jing , Guo Haixia
Published: November 2021

Energy savings and environmental protection are the only way for the sustainable development of the automotive industry. The poor shifting performance of automobile transmission may reduce the driver's driving pleasure and make the driver feel tired. In addition, improper shifting would also increase fuel consumption. Therefore, in view of the importance of improving the shift performance of vehicle transmission, GSA testing technology was employed for the existing shift quality problems of commercial vehicles to continuously realize high shifting efficiency and low fuel consumption. Through the establishment of subjective and objective evaluation criteria of the experimentally determined shift performance of commercial vehicles, a reliable theoretical basis is provided for product optimization design and shift performance evaluation. As a result, the shift control strategy and optimization matching measures are formulated to ensure that the power, smoothness and transmission of the whole vehicle system meet the technical requirements and finally achieve a rapid and stable gearshift. Thus, this work unveils the high potential of improving the shift performance and quality of the whole vehicle and is expected to have an impact on reducing fuel consumption and emissions in the relevant automotive industry, contributing to the establishment of a more sustainable society.
Multivariate classification techniques and mass spectrometry as a tool in the screening of patients with fibromyalgia
Authors: Alves Marcelo V. S. , Maciel Lanaia I. L. , Ramalho Ruver R. F. , Lima Leomir A. S. , Vaz Boniek G. , Morais Camilo L. M. , Passos João O. S. , Pegado Rodrigo , Lima Kássio M. G.
Published: November 2021

Fibromyalgia is a rheumatological disorder that causes chronic pain and other symptomatic conditions such as depression and anxiety. Despite its relevance, the disease still presents a complex diagnosis where the doctor needs to have a correct clinical interpretation of the symptoms. In this context, it is valid to study tools that assist in the screening of this disease, using chemical work techniques such as mass spectroscopy. In this study, an analytical method is proposed to detect individuals with fibromyalgia (n = 20, 10 control samples and 10 samples with fibromyalgia) from blood plasma samples analyzed by mass spectrometry with paper spray ionization and subsequent multivariate classification of the spectral data (unsupervised and supervised), in addition to the treatment of selected variables with possible associations with metabolomics. Exploratory analysis with principal component analysis (PCA) and supervised analysis with successive projections algorithm with linear discriminant analysis (SPA-LDA) showed satisfactory results with 100% accuracy for sample prediction in both groups. This demonstrates that this combination of techniques can be used as a simple, reliable and fast tool in the development of clinical diagnosis of Fibromyalgia.
Controlling long-term SARS-CoV-2 infections can slow viral evolution and reduce the risk of treatment failure
Authors: Van Egeren Debra , Novokhodko Alexander , Stoddard Madison , Tran Uyen , Zetter Bruce , Rogers Michael S. , Joseph-McCarthy Diane , Chakravarty Arijit
Published: November 2021

The rapid emergence and expansion of novel SARS-CoV-2 variants threatens our ability to achieve herd immunity for COVID-19. These novel SARS-CoV-2 variants often harbor multiple point mutations, conferring one or more evolutionarily advantageous traits, such as increased transmissibility, immune evasion and longer infection duration. In a number of cases, variant emergence has been linked to long-term infections in individuals who were either immunocompromised or treated with convalescent plasma. In this paper, we used a stochastic evolutionary modeling framework to explore the emergence of fitter variants of SARS-CoV-2 during long-term infections. We found that increased viral load and infection duration favor emergence of such variants. While the overall probability of emergence and subsequent transmission from any given infection is low, on a population level these events occur fairly frequently. Targeting these low-probability stochastic events that lead to the establishment of novel advantageous viral variants might allow us to slow the rate at which they emerge in the patient population, and prevent them from spreading deterministically due to natural selection. Our work thus suggests practical ways to achieve control of long-term SARS-CoV-2 infections, which will be critical for slowing the rate of viral evolution.
In vitro response of vanilla (Vanilla planifolia Jacks. ex Andrews) to PEG-induced osmotic stress
Authors: Martínez-Santos Eduardo , Cruz-Cruz Carlos Alberto , Spinoso-Castillo José Luis , Bello-Bello Jericó Jabín
Published: November 2021

Drought-induced water stress affects the productivity of the Vanilla planifolia Jacks. ex Andrews crop. In vitro culture technique is an effective tool for the study of water stress tolerance mechanisms. This study aimed to evaluate the morphological, physiological and biochemical response of V. planifolia under in vitro water stress conditions induced with polyethylene glycol (PEG). In vitro regenerated shoots of 2 cm in length were subjected to different concentrations of PEG 6000 (0, 1, 2 and 3% w/v) using Murashige and Skoog semi-solid culture medium. At 60 days of culture, different growth variables, dry matter (DM) content, chlorophyll (Chl), soluble proteins (SP), proline (Pro), glycine betaine (GB), stomatal index (SI) and open stomata (%) were evaluated. Results showed a reduction in growth, Chl content, SP, SI and open stomata (%) with increasing PEG concentration, whereas DM, Pro and GB contents rose with increasing PEG concentration. In conclusion, PEG-induced osmotic stress allowed describing physiological and biochemical mechanisms of response to water stress. Furthermore, the determination of compatible Pro and GB osmolytes can be used as biochemical markers in future breeding programs for the early selection of water stress tolerant genotypes.
Manifold learning analysis suggests strategies to align single-cell multimodal data of neuronal electrophysiology and transcriptomics
Authors: Huang Jiawei , Sheng Jie , Wang Daifeng
Published: November 2021

Recent single-cell multimodal data reveal multi-scale characteristics of single cells, such as transcriptomics, morphology, and electrophysiology. However, integrating and analyzing such multimodal data to deeper understand functional genomics and gene regulation in various cellular characteristics remains elusive. To address this, we applied and benchmarked multiple machine learning methods to align gene expression and electrophysiological data of single neuronal cells in the mouse brain from the Brain Initiative. We found that nonlinear manifold learning outperforms other methods. After manifold alignment, the cells form clusters highly corresponding to transcriptomic and morphological cell types, suggesting a strong nonlinear relationship between gene expression and electrophysiology at the cell-type level. Also, the electrophysiological features are highly predictable by gene expression on the latent space from manifold alignment. The aligned cells further show continuous changes of electrophysiological features, implying cross-cluster gene expression transitions. Functional enrichment and gene regulatory network analyses for those cell clusters revealed potential genome functions and molecular mechanisms from gene expression to neuronal electrophysiology.
piR-39980 mediates doxorubicin resistance in fibrosarcoma by regulating drug accumulation and DNA repair
Authors: Das Basudeb , Jain Neha , Mallick Bibekanand
Published: November 2021

Resistance to doxorubicin (DOX) is an obstacle to successful sarcoma treatment and a cause of tumor relapse, with the underlying molecular mechanism still unknown. PIWI-interacting RNAs (piRNAs) have been shown to enhance patient outcomes in cancers. However, there are few or no reports on piRNAs affecting chemotherapy in cancers, including fibrosarcoma. The current study aims to investigate the relationship between piR-39980 and DOX resistance and the underlying mechanisms. We reveal that piR-39980 is less expressed in DOX-resistant HT1080 (HT1080/DOX) fibrosarcoma cells. Our results show that inhibition of piR-39980 in parental HT1080 cells induces DOX resistance by attenuating intracellular DOX accumulation, DOX-induced apoptosis, and anti-proliferative effects. Its overexpression in HT1080/DOX cells, on the other hand, increases DOX sensitivity by promoting intracellular DOX accumulation, DNA damage, and apoptosis. The dual-luciferase reporter assay indicates that piR-39980 negatively regulates RRM2 and CYP1A2 via direct binding to their 3′UTRs. Furthermore, overexpressing RRM2 induces DOX resistance of HT1080 cells by rescuing DOX-induced DNA damage by promoting DNA repair, whereas CYP1A2 confers resistance by decreasing intracellular DOX accumulation, which piR-39980 restores. This study reveals that piR-39980 could reduce fibrosarcoma resistance to DOX by modulating RRM2 and CYP1A2, implying that piRNA can be used in combination with DOX.
A targeted self-assembling photosensitizer nanofiber constructed by multicomponent coordination
Authors: Zhang Qianqian , Xu Jiawei , Peng Jiayi , Liu Zhonghua
Published: November 2021

The self-assembling CFTNFs not only showed excellent phototoxicity against HepG2 cells in vitro, but also showed an optimized tumor targeting ability, improved tumor accumulation and enhanced tumor growth inhibition.
Host–guest complexation modulated aqueous polymerization-induced self-assembly for monodisperse hierarchical nanoflowers
Authors: Chen Xi , An Nankai , Zeng Min , Yuan Jinying
Published: November 2021

This work presents the facile synthesis of monodisperse hierarchical nanoflowers by aqueous polymerization-induced self-assembly (PISA), modulated by host–guest interaction.
Synthesis and aqueous anion recognition of an imidazolium-based nonacationic cup
Authors: Wang Pinpin , Liu Kai , Ma Huanqing , Nian Hao , Li Yawen , Li Qingfang , Cheng Lin , Cao Liping
Published: November 2021

An imidazolium-based nonacationic cup exhibited anionic recognition for nucleoside molecules such as ATP and NADH via C–H⋯A− ionic hydrogen bonds, hydrophobic effects, and electrostatic interactions in aqueous solution.
Structure determination of small molecule compounds by an electron diffractometer for 3D ED/MicroED
Authors: Ito Sho , White Fraser J. , Okunishi Eiji , Aoyama Yoshitaka , Yamano Akihito , Sato Hiroyasu , Ferrara Joseph D. , Jasnowski Michał , Meyer Mathias
Published: November 2021

Development of a diffractometer specialized for electron diffraction experiments.
A systematic study of the valence electronic structure of cyclo(Gly–Phe), cyclo(Trp–Tyr) and cyclo(Trp–Trp) dipeptides in the gas phase
Authors: Molteni Elena , Mattioli Giuseppe , Alippi Paola , Avaldi Lorenzo , Bolognesi Paola , Carlini Laura , Vismarra Federico , Wu Yingxuan , Varillas Rocio Borrego , Nisoli Mauro , Singh Manjot , Valadan Mohammadhassan , Altucci Carlo , Richter Robert , Sangalli Davide
Published: November 2021

The electronic energy levels of cyclo(glycine–phenylalanine), cyclo(tryptophan–tyrosine) and cyclo(tryptophan–tryptophan) dipeptides are investigated with a joint experimental and theoretical approach.
In situ coating of a N, S co-doped porous carbon thin film on carbon nanotubes as an advanced metal-free bifunctional oxygen electrocatalyst for Zn–air batteries
Authors: Wang Xin , Li Guang-Lan , Lu Zhong-Fa , Cao Shuo , Hao Ce , Wang Suli , Sun Gongquan
Published: November 2021

A N, S co-doped porous carbon thin film was coated in situ on CNT via a simple and scalable polymerization-pyrolysis strategy, which exhibits extraordinary ORR/OER performance in half-cell tests and Zn–air batteries.
Macrocycle based dinuclear dysprosium(iii) single molecule magnets with localD5hcoordination geometry
Authors: Wu Jianfeng , Demeshko Serhiy , Dechert Sebastian , Meyer Franc
Published: November 2021

Bis(pyrazolato)-bridged macrocycles are shown to serve as scaffolds for Dy2single molecule magnets with control over the relative orientation of anisotropy axes.
Adsorption of antibiotics onto graphene oxide imparts their antagonistic effects on Synechocystis sp.: model development and proteomic analysis
Authors: You Mingtao , You Xiuqi , Yang Xi , Hu Jingrun , Sun Weiling
Published: November 2021

The combined toxicity of GO and antibiotics to Synechocystis sp. was dependent on their interplays. The adsorption of antibiotics onto GO resulted in their antagonistic effects.
Intake of high-purity insoluble dietary fiber from Okara for the amelioration of colonic environment disturbance caused by acute ulcerative colitis
Authors: Lyu Bo , Wang Yi , Fu Hongling , Li Jiaxin , Yang Xiaoqing , Shen Yue , Swallah Mohammed Sharif , Yu Ziyue , Li Yang , Wang Huan , Yu Hansong , Jiang Lianzhou
Published: November 2021

High-purity insoluble dietary fiber from okara (okara-HPIDF) is a raw material with a potentially positive effect on colon health.
A porous thienyl cyclodextrin polymer synthesized in a homogeneous ionic liquid catalytic system for the rapid removal of pharmaceuticals and personal care products (PPCPs)
Authors: Tu Yizhou , Wang Huimin , Yang Pingping , Xu Guizhou , Hu Xuejiao , Li Aimin , Xie Xianchuan
Published: November 2021

Porous thienyl cyclodextrin polymer was synthesized in a green recyclable ionic liquid system for the first time to remove PPCPs.
Novel quadruple-stranded heterometallic Ln2Na complexes hosting sodium ions inside the cryptand-like cavity
Authors: Horniichuk Oleksandr Ye. , Trush Victor A. , Kariaka Nataliia S. , Shishkina Svitlana V. , Dyakonenko Viktoriya V. , Severinovskaya Olga V. , Gawryszewska Paula , Domasevitch Kostiantyn V. , Watras Adam , Amirkhanov Vladimir M.
Published: November 2021

The first examples of lanthanide tetrakis-complexes based on bis-chelating carbacylamidophosphate were synthesized and characterized.
Enantioselective deprotometalation of alkyl ferrocenecarboxylates using bimetallic bases
Authors: Dayaker Gandrath , Erb William , Hedidi Madani , Chevallier Floris , Blot Marielle , Gros Philippe C. , Hilmersson Göran , Roisnel Thierry , Dorcet Vincent , Bentabed-Ababsa Ghenia , Mongin Florence
Published: November 2021

Our attempts to deprotometalate alkyl ferrocenecarboxylates enantioselectively by using chiral lithium–zinc or lithium–cadmium bases are reported.
Transition-metal-free synthesis of trifluoromethylated benzoxazines via a visible-light-promoted tandem difunctionalization of o-vinylanilides with trifluoromethylsulfinate
Authors: Natarajan Palani , Chuskit Deachen , Priya  , Manjeet
Published: November 2021

A Umemoto's reagent-free and cost-effective method for synthesis of trifluoromethylated benzoxazines by 9,10-phenanthrenedione visible-light photocatalysis is described in this article.
Promotion mechanism of –OH group intercalation for NOx purification on BiOI photocatalyst
Authors: Yang Weiping , Ren Qin , Zhong Fengyi , Wang Yanxia , Wang Jielin , Chen Ruimin , Li Jieyuan , Dong Fan
Published: November 2021

Bismuth oxyiodide (BiOI) is a traditional layered oxide photocatalyst that performs in a wide visible-light absorption band, owing to its appropriate band structure.
Effective synthesis of novel dihydrobenzisoxazoles bearing the 2-aminothiazole moiety and evaluation of the antiproliferative activity of their acylated derivatives
Authors: Piven Yuri A. , Scherbakov Alexander M. , Yastrebova Margarita A. , Sorokin Danila V. , Shchegolev Yuri Yu. , Matous Anton E. , Zinovich Veronica G. , Khlebnicova Tatyana S. , Lakhvich Fedor A.
Published: November 2021

A new class of fused heterocyclic compounds containing both the isoxazole and thiazole moieties and demonstrating potential for anticancer research has been developed.
Precision synthesis of a fluorene-thiophene alternating copolymer by means of the Suzuki–Miyaura catalyst-transfer condensation polymerization: the importance of the position of an alkyl substituent on thiophene of the biaryl monomer to suppress disproportionation
Authors: Tokita Yu , Katoh Masaru , Kosaka Kentaro , Ohta Yoshihiro , Yokozawa Tsutomu
Published: November 2021

The Suzuki–Miyaura coupling polymerization of PinB-F8T(3)-Br was accompanied by disproportionation, whereas that of PinB-F8T(4)-Br proceeded in a chain-growth polymerization manner to afford a well-defined fluorene-thiophene alternating copolymer.
Ethylene glycol assisted self-template conversion approach to synthesize hollow NiS microspheres for a high performance all-solid-state supercapacitor
Authors: Zhu Maiyong , Li Xuan , Tu Chengyu , Luo Qiao , Nie Yijing , Pan Jianmei , Li Songjun
Published: November 2021

Hollow NiS microspheres were synthesized via an ethylene glycol assisted three-step sequential process, which displayed excellent performance in an all solid state supercapacitor.
Cu ions and cetyltrimethylammonium bromide loaded into montmorillonite: a synergistic antibacterial system for bone scaffolds
Authors: Yu Li , He Tiantian , Yao Jia , Xu Wendi , Peng Shuping , Feng Pei , Shuai Cijun
Published: November 2021

A synergistic antibacterial system for polyglycolic acid scaffolds was constructed by cation exchange of montmorillonite (MMT) with Cu2+and then intercalation of cetyltrimethylammonium bromide (CTAB) into the interlayer of MMT.
Noncovalent functionalization of Ti3C2TX using cationic porphyrins with enhanced stability against oxidation
Authors: Thurakkal Shameel , Zhang Xiaoyan
Published: November 2021

Noncovalently functionalized Ti3C2TX MXenes are prepared via electrostatic interactions between cationic porphyrins and Ti3C2TX. Various spectroscopic and microscopic techniques are used to characterize the two hybrids, which show enhanced stability against oxidation and a pH dependent release of the porphyrins.
Decarbonylative Sonogashira cross-coupling: a fruitful marriage of alkynes with carboxylic acid electrophiles
Authors: Liu Chengwei , Szostak Michal
Published: November 2021

The Sonogashira cross-coupling is one of the most fundamental C–C bond-forming reactions, wherein the strategic value of an alkyne moiety has found widespread applications at the frontiers of organic chemistry, materials science and drug discovery as the cornerstone building block of chemical synthesis.
Bacterial virulence factors: a target for heterocyclic compounds to combat bacterial resistance
Authors: Abd El-Aleam Rehab H. , George Riham F. , Georgey Hanan H. , Abdel-Rahman Hamdy M.
Published: November 2021

This review presents an overview of different heterocyclic compounds that act as anti-virulence agents in order to overcome microbial resistance.
Recent advances in the transition-metal-free synthesis of quinoxalines
Authors: Borah Biplob , Chowhan L. Raju
Published: November 2021

Recent advances in the synthesis of quinoxalines under transition metal free conditions are summarized in this review article.
Excited-state intramolecular proton transfer with and without the assistance of vibronic-transition-induced skeletal deformation in phenol–quinoline
Authors: Liu Yu-Hui , Yu Shi-Bo , Peng Ya-Jing , Wang Chen-Wen , Zhu Chaoyuan , Lin Sheng-Hsien
Published: November 2021

Skeletal deformation motion is demonstrated from the specific vibronic excitation of phenol–quinoline molecules.
Generation of oligonucleotide conjugates via one-pot diselenide-selenoester ligation–deselenization/alkylation
Authors: Liczner Christopher , Hanna Cameron C. , Payne Richard J. , Wilds Christopher J.
Published: November 2021

An efficient and versatile approach for the late-stage generation of oligonucleotide conjugates by diselenide-selenoester ligation (DSL)–deselenization/alkylation was developed.
Metal-catalyzed B–H acylmethylation of pyridylcarboranes: access to carborane-fused indoliziniums and quinoliziniums
Authors: Cao Hou-Ji , Wei Xing , Sun Fangxiang , Zhang Xiaolei , Lu Changsheng , Yan Hong
Published: November 2021

Metal-catalyzed selective mono-acylmethylation of pyridylcarboranes has been realized, which provides further utility to construct carborane-fused indoliziniums and quinoliziniums.
Effect of cathode on crosstalk in Si-based lithium-ion cells
Authors: Kim Minkyu , Yang Zhenzhen , Son Seoung-Bum , Trask Stephen E. , Jansen Andrew , Bloom Ira
Published: November 2021

Crosstalk between the cathode and the anode in Li-ion batteries has a great impact on performance, safety and cycle lifetime.
Nanostructured materials for electrochromic energy storage systems
Authors: Dalavi Dhanaji S. , Desai Radhika S. , Patil Pramod S.
Published: November 2021

This review highlights the recent progress in electrochromic energy storage (EES) systems. EES bifunctional devices can be incorporated with characteristics such as flexibility, stretchability, self-healing properties, etc. making them convenient for everyday applications.
Achieving F-doped porous hollow carbon nanospheres with ultrahigh pore volume via a gas–solid interface reaction
Authors: Hu Jinlong , Zhang Lingzhi
Published: November 2021

Gas–solid interface engineered ultrahigh-pore-volume F-doped hierarchical porous hollow carbon nanospheres for high-sulfur-content Li–S batteries.
Exploring the influence of the cation type and polymer support in bis(fluorosulfonyl)imide-based plastic crystal composite membranes for CO2/N2 separation
Authors: Ramos-Saz Fernando , García Yady , Kang Colin S. M. , O'Dell Luke A. , Forsyth Maria , Pringle Jennifer M.
Published: November 2021

A range of organic ionic plastic crystal-based composites for CO2 separation are reported. A variety of analytical techniques were used to elucidate the influence of ion and polymer type on the properties and gas separation performance.
Eco-compatible and highly efficient organic solar cells with an aggregation-controlled terpolymer strategy
Authors: Kim Jinseck , Kyeong Minju , Ha Jong-Woon , Ahn Hyungju , Jung Juhyoung , Seo Soodeok , Phan Tan Ngoc-Lan , Lee Changjin , Yoon Sung Cheol , Kim Bumjoon J. , Ko Seo-Jin
Published: November 2021

Our work presents a strategy for the development of eco-compatible highly efficient organic solar cells with sufficient solubility and optimized aggregation by introducing an ester-substituted thiophene.
Hierarchical 3D structured nanoporous Co9S8@Nix:Moy–Se core–shell nanowire array electrodes for high-performance asymmetric supercapacitors
Authors: Dai JiuYi , Singh Soram Bobby , Kim Nam Hoon , Lee Joong Hee
Published: November 2021

Hierarchical 3D Co9S8@Nix:Moy–Se core–shell nanowire array electrodes as high-performance positive electrodes, and fabrication of a high energy density asymmetric supercapacitor device.
Functional integration of hierarchical core–shell architectures via vertically arrayed ultrathin CuSe nanosheets decorated on hollow CuS microcages targeting highly effective sodium-ion storage
Authors: Zhao Wenxi , Wang Xiaodeng , Ma Xiaoqing , Yue Luchao , Ren Yuchun , Li Tingshuai , Xia Jihong , Zhang Longcheng , Liu Qian , Luo Yonglan , Li Na , Tang Bo , Liu Yang , Gao Shuyan , Asiri Abdullah M. , Sun Xuping
Published: November 2021

A hierarchical core–shell architecture of vertically arrayed ultrathin CuSe nanosheets decorating on hollow CuS microcages affords exceptional sodium storage performance with an admirable 303.1 mA h g−1 at 20.0 A g−1 after 1500 cycles.
Flexible fluorinated multi-walled carbon nanotube/polyarylene ether nitrile metacomposites with negative permittivity
Authors: Han Weihua , Gao Feng , Zhou Lingyun , Wang Lu , Hua Xiufu , Xue Xinyu , Li Zhiqiang , Luo Wei , Pang Lingyun , Wei Renbo
Published: November 2021

Flexible fluorinated multi-walled carbon nanotube/polyarylene ether nitrile porous metacomposite film (FMWCNT/PEN) with negative permittivity has been fabricated via a delayed phase inversion method with a low content of FMWCNT.
Layer number-dependent optoelectronic characteristics of quasi-2D PBA2(MAPbBr3)n−1PbBr4 perovskite films
Authors: Yao Lianfei , Lou Xue , Sui Ning , Kang Zhihui , Zhou Qiang , Li Li , Zhao Bing , Zhang Han-zhuang , Zhang Jiaqi , Wang Yinghui
Published: November 2021

The PL, ASE and photo-generated carrier recombination of quasi-2D PBA2(MAPbBr3)n−1PbBr4 perovskite films have been studied in detail, confirming that these photo-physical characters are sensitive to layer number.
FeCo alloy nanoparticle decorated cellulose based carbon aerogel as a low-cost and efficient electromagnetic microwave absorber
Authors: Guo Yan , Wang Dedong , Tian Yu , Wang Jingwen , Bai Tiantian , Liu Hu , Guo Zhanhu , Liu Chuntai , Shen Changyu
Published: November 2021

Magnetic FeCo alloy nanoparticle decorated cellulose-based carbon aerogel (FeCo@CCA) exhibits efficient electromagnetic microwave absorption performance with a RLmin of −49.5 dB and an EAB of 10.88 GHz.
Novel H2S multifunctional sensing materials: Cu or Ag-decorated (4,4)SWSiC nanotubes
Authors: Safaiee R. , Golshan M. M. , Khalifeh M.
Published: November 2021

A novel mechanism for the detection of hazardous H2S gas by Cu or Ag decorated(4,4) SWSiCNTs is proposed.
Harnessing bipolar acceptors for highly efficient exciplex-forming systems
Authors: Hung Yi-Tzu , Luo Dian , Chen Li-Ming , Huang Dun-Cheng , Wu Jian-Zhi , Chen Yi-Sheng , Chang Chih-Hao , Wong Ken-Tsung
Published: November 2021

Two bipolar molecules CzT2.1 and CzT2.2 are examined as electron acceptors to form exciplexes with electron donors 1,1-bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC) and 4,4′,4′′-tris(carbazol-9-yl)-triphenylamine (TCTA), respectively.
Finding “Zen” in Aphasia: The Benefits of Yoga as Described by Key Stakeholders
Authors: Bislick Lauren , Dietz Aimee , Duncan E. Susan , Garza Pilar , Gleason Rachel , Harley Dana , Kersey Greg , Kersey Terri , Mamlekar Chitrali R. , McCarthy Michael J. , Noe Vicki , Rushlow Deanna , Rushlow J. Chase , Van Allan Stephanie
Published: November 2021

Purpose:

Recently, the literature has witnessed a surging interest regarding the use of mind–body approaches with people who have aphasia, generating a plethora of possible outcome measures. During this same time, a core outcome set for aphasia has been recommended. The purpose of this clinical focus article is to give our survivor, co-survivor, and clinician stakeholder coauthors a platform to share their personal narrative regarding their yoga journey, with the goal of identifying primary outcome domains central to capturing the impact of yoga on the recovery process for people with poststroke aphasia. Ultimately, we hope this clinical focus article helps clinicians understand how yoga might benefit their patients and draws attention to potential outcome measures, while also highlighting the important fact that traditional aphasia assessments do not capture the improvements stakeholders pinpoint as crucial to the essence of mind–body interventions.

Method:

This clinical focus article summarizes the case reports of Terri's and Chase's poststroke yoga journeys using the power of personal narrative and an adapted photovoice method. Additional stakeholders share in this storytelling process, using a variety of narrative tools. As this story is unveiled, several patient-identified outcome domains are highlighted as essential to document the impact of yoga on survivors.

Results:

Terri's and Chase's yoga journeys revealed the multifaceted impact of yoga on five domains: (a) feelings of wholeness and “zen,” (b) increased attentional capacity for language tasks, (c) increased verbal fluency, (d) decreased pain, and (e) relationship mutuality.

Conclusion:

Team Yoga realized that the practice of yoga—whether as a stand-alone practice or integrated into therapy sessions—fosters feelings of wholeness or “zen,” which likely correlates with decreased pain with a simultaneous increase in resilience and flexibility of coping strategies to manage the host of chronic poststroke challenges.

Supplemental Material

https://doi.org/10.23641/asha.17003464
Self-consistent modelling of the dust component in protoplanetary and circumplanetary disks: the case of PDS 70
Authors: Portilla-Revelo B. , Kamp I. , Rab Ch. , van Dishoeck E. F. , Keppler M. , Min M. , Muro-Arena G. A.
Published: November 2021

Context.Direct observations of young stellar objects are important to test established theories of planet formation. PDS 70 is one of the few cases where robust evidence favours the presence of two planetary mass companions inside the gap of the transition disk. Those planets are believed to be going through the last stages of accretion from the protoplanetary disk, a process likely mediated by a circumplanetary disk (CPD).

Aims.We aim to develop a three-dimensional radiative transfer model for the dust component of the PDS 70 system which reproduces the system’s global features observed at two different wavelengths: 855 μm with the Atacama large millimeter/submillimeter array (ALMA) and 1.25 μm with the Spectro-polarimetric high-contrast exoplanet research instrument at the Very large telescope (VLT/SPHERE). We use this model to investigate the physical properties of the planetary companion PDS 70 c and its potential circumplanetary disk.

Methods.We base our modelling process on published ALMA and VLT/SPHERE observations of the dust continuum emission at 855 and 1.25 μm, respectively. We selected initial values for the physical properties of the planet and CPD through appropriate assumptions about the nature and evolutionary stage of the object. We modified the properties of the protoplanetary disk iteratively until the predictions retrieved from the model were consistent with both data sets. Simulations were carried out with the three-dimensional radiative transfer codeMCMax3D.

Results.We provide a model that jointly explains the global features of the PDS 70 system seen in sub-millimetre and polarised-scattered light. Our model suggests that spatial segregation of dust grains is present in the protoplanetary disk. The sub-millimetre modelling of the PDS 70 c source favours the presence of an optically thick CPD and places an upper limit on its dust mass of 0.7M⊕. Furthermore, analysis of the thermal structure of the CPD demonstrates that the planet luminosity is the dominant heating mechanism of dust grains inside 0.6 au from the planet, while heating by stellar photons dominates at larger planetocentric distances.

Conclusions.A CPD surrounding the planetary-mass companion PDS 70 c is a plausible scenario to explain the substructure observed with ALMA. The heating feedback from the protoplanetary disk has an non-negligible effect on the equilibrium temperature of dust grains in the outskirts of the CPD. The connection between the CPD properties and the planet mass still depends on a series of key assumptions. Further observations with high spatial and spectral resolution also for the gas component of the CPD are required to break the degeneracy between the properties of the planet and the disk.
Gaia-ESO Survey: Detailed elemental abundances in red giants of the peculiar globular cluster NGC 1851
Authors: Tautvaišienė G. , Drazdauskas A. , Bragaglia A. , Martell S. L. , Pancino E. , Lardo C. , Mikolaitis Š. , Minkevičiūtė R. , Stonkutė E. , Ambrosch M. , Bagdonas V. , Chorniy Y. , Sanna N. , Franciosini E. , Smiljanic R. , Randich S. , Gilmore G. , Bensby T. , Bergemann M. , Gonneau A. , Guiglion G. , Carraro G. , Heiter U. , Korn A. , Magrini L. , Morbidelli L. , Zaggia S.
Published: November 2021

Context. NGC 1851 is one of several globular clusters for which multiple stellar populations of the subgiant branch have been clearly identified and a difference in metallicity detected. A crucial piece of information on the formation history of this cluster can be provided by the sum of A(C+N+O) abundances. However, these values have lacked a general consensus thus far. The separation of the subgiant branch can be based on age and/or A(C+N+O) abundance differences.

Aims. Our main aim was to determine carbon, nitrogen, and oxygen abundances for evolved giants in the globular cluster NGC 1851 in order to check whether or not the double populations of stars are coeval.

Methods. High-resolution spectra, observed with the FLAMES-UVES spectrograph on the ESO VLT telescope, were analysed using a differential model atmosphere method. Abundances of carbon were derived using spectral synthesis of the C2 band heads at 5135 and 5635.5 Å. The wavelength interval 6470−6490 Å, with CN features, was analysed to determine nitrogen abundances. Oxygen abundances were determined from the [O I] line at 6300 Å. Abundances of other chemical elements were determined from equivalent widths or spectral syntheses of unblended spectral lines.

Results. We provide abundances of up to 29 chemical elements for a sample of 45 giants in NGC 1851. The investigated stars can be separated into two populations with a difference of 0.07 dex in the mean metallicity, 0.3 dex in the mean C/N, and 0.35 dex in the mean s-process dominated element-to-iron abundance ratios [s/Fe]. No significant difference was determined in the mean values of A(C+N+O) as well as in abundance to iron ratios of carbon, α- and iron-peak-elements, and of europium.

Conclusions. As the averaged A(C+N+O) values between the two populations do not differ, additional evidence is given that NGC 1851 is composed of two clusters, the metal-rich cluster being by about 0.6 Gyr older than the metal-poor one. A global overview of NGC 1851 properties and the detailed abundances of chemical elements favour its formation in a dwarf spheroidal galaxy that was accreted by the Milky Way.
The Data Acquisition System for the ATLAS Phase-II Tile Calorimeter Demonstrator
Authors: Argos Fernando Carrió
Published: November 2021

The Tile Calorimeter (TileCal) is the central hadronic calorimeter of the ATLAS experiment at Large Hadron Collider (LHC). The TileCal readout system consists of about 10,000 channels. In 2025, the LHC will be upgraded leading into the High Luminosity LHC (HL-LHC). The HL-LHC will be capable to deliver an instantaneous luminosity up to seven times compared to the LHC nominal luminosity. The TileCal Phase-II upgrade will replace the majority of the on-detector and off-detector electronics using a new readout schema for the HL-LHC era. The on-detector electronics will digitize and transmit calorimeter signals to the off-detector electronics at the bunch crossing frequency. In the counting rooms, the off-detector electronics will store the digitized samples in pipelined buffers and compute reconstructed trigger objects for the first level of trigger.

The TileCal Phase-II upgrade project has undertaken an extensive R&D program which includes the development of a Demonstrator module to evaluate the performance of the new clock and readout architecture for the HL-LHC. A Demonstrator module containing the upgrade on-detector readout electronics was built, tested during several test beam campaigns, and inserted into the ATLAS experiment. The Demonstrator module is operated and read out using a Tile PreProcessor (TilePPr) Demonstrator which enables backward compatibility with the present ATLAS Trigger and Data AcQuisition and the Timing, Trigger and Command systems.

This contribution describes the components of the clock distribution and data acquisition system for the Demonstrator module, and its implementation in the ATLAS experiment.
Characterization of calorimeter responses under laboratory conditions thanks to an optimized transient thermal test bench
Authors: Rebaud J. , Volte A. , Carette M. , Lyoussi A. , Kohse G. , Prokopowicz R. , Reynard-Carette C.
Published: November 2021

This paper presents an experimental study of the calibration of a non-adiabatic single-cell calorimeter called KAROLINA. This type of sensor is used to quantify the nuclear heating rate inside MTRs (Material Testing Reactors). The calibration of this sensor type is carried out in laboratory conditions without irradiation. The calibration corresponds to a preliminary step, which is crucial to use this sensor in real conditions. In the case of the studied single-cell calorimeter owning no heating element, the calibration is realized with a specific test bench, called BERTAN, based on thermal transient regimes. First of all, the paper describes the methodology of the determination of the calorimeter sensitivity and the dedicated experimental set-up developed recently. Then the paper is devoted to a parametric study carried out on the KAROLINA single-cell calorimeter to determine the influence of several parameters on its thermal time constant (temperature, velocity, phase, method).
Online optical refractive index measurement in research reactor core
Authors: Fourneau Gary , Agoyan Marion , Chemol Guy , Ladaci Ayoub , Maskrot Hicham , Destouches Christophe , Fourmentel Damien , Girard Sylvain , Boukenter Aziz
Published: November 2021

There is a growing interest in fiber optic measurements for applications in radiation environments. Optical fiber sensors and diagnostics can monitor many parameters of interest inside a research reactor core. For some applications, fiber optics are combined with an optical system that collects or focuses the light beam. The Radiation-Induced-Refractive-Index-Change (RIRIC) of the used glasses appears then as major phenomenon as it is a determining value for the sensor optical function. In the framework of the development of a radiation hardened confocal chromatic sensor, we implemented an on-line refractive index measuring device in order to test in a reactor core various glasses, candidates to be implemented into the sensor. The measurement relies on interferometry, which is a challenge because of the small volume available, the impossibility to make optical adjustments once installed, and the high temperature of operation. Precisely, the quantity retrieved is the optical path (product of the length L by the optical refractive index n), when L is well known, we can deduce n. But under high neutron fluence, some variation in density can be observed. The targeted online measurement of the refractive index therefore becomes an optical path measurement. We will present the device, the principle of measurement, and the first results of some index change measurement, produced by a temperature ramp from 20 °C and 350 °C. We have obtained original data for most of the candidate glasses used to design the optical system.
The VINON-LOCA test facility: exploring the LOCA phenomenology through an out-of-pile thermal sequence on irradiated pressurized fuel rod
Authors: Biard B. , Colin C. , Bernard S. , Marty V. , Volle G. , Martin F. , Charmasson P. , Ronné K. , Moysan-Lavoine I. , Ferrandis J.-Y. , Schoepff V. , Amoyal G. , Fédérici E.
Published: November 2021

Since the out-of-pile semi-integral tests performed at Studsvik in 2011 for the NRC [1] and the Halden Loss-Of-Coolant Accident (LOCA) test series IFA-650 [2], a major safety interest has raised for Fuel Fragmentation, Relocation and Dispersal (FFRD) during a LOCA sequence. In addition to the characteristics of the fuel ejected from the rod after the clad failure, the fuel behaviour before the clad failure is still to be investigated, especially its fragmentation and its possible relocation within the rod during the clad ballooning phase. Furthermore, the chronology and the sequencing of these phenomena is of particular interest.

For this purpose, the VINON-LOCA program, lying in the framework of a trilateral agreement between EDF, Framatome and CEA, is aimed at performing Out-Of-Pile heating tests on irradiated repressurized fuel rods, reproducing a typical Loss Of Coolant Accident thermal sequence. The VINON-LOCA experimental set-up is located in the so-called VERDON lab of the LECA-STAR hot cell complex. This lab was dedicated to the VERDON-ISTP program [3]. The VINON-LOCA set-up is thus largely instrumented for addressing not only these FFRD topics, but also Fission Gas Release (FGR), combining both online measurement (gamma stations, gamma camera, acoustic sensor, pressure, temperatures, flow meters, microGC…), and preand post-test characterization (gamma scanning, tomography, metrology, fuel fragments weighing and sieving, gas analyses…).

An extensive and substantial qualification campaign has been performed to validate the furnace design regarding the desired test conditions, and to qualify the instrumentation. Following some preliminary modelling and calculations, it has included tests on an out-of-cell twin mockup and tests on dummy inactive rods in the hot cell. This allowed achieving successfully the first experimental qualification test of the program end of 2019 on an irradiated UO2 fuel rodlet. A second irradiated experiment is planned with increased instrumentation capabilities, notably a 2D gamma camera for online fuel motion detection.
Development of Prototype Simplified Neutron Scatter Camera for Nuclear Safeguards Applications
Authors: Harvey Taylor , Enqvist Andreas
Published: November 2021

Neutron scatter cameras are a type of directional neutron detectors that rely on multiple neutron scatters to generate images that can reveal the direction and distribution of neutron sources. Fast neutron cameras which have recently been developed rely on multiple detector volumes and make use of neutron time-of-flight measurements. These designs, though effective in localizing the source direction, relies on a large amount of detection and electrical equipment, thus increasing size, cost, and complexity of the systems to unreasonable levels for some applications. This project seeks to develop a compact scatter camera that is less expensive than systems relying on multiple detector volumes. Crucially, two components and capabilities are needed to achieve this: fast scintillation detection materials and picosecond electrical pulse timing. Utilizing such electronics, distinguishing between scintillation light pulses generated by the same neutron within one detector volume is possible. An MCNPX-PoliMi model of such a system has been developed to guide prototype designs. A cube of EJ-230 fast plastic scintillator and six photomultiplier tubes (PMTs) were used to construct the prototype camera that localizes neutron sources based on the principle of cone back projection. Prototypes of the system in one, two, and three dimensions have shown promising initial results when coupled with a script that algorithmically identifies candidate neutron double scatter events and back projects probability cones in the direction of possible sources. Imaging resolution/quality, double scatter efficiency, and cost for the system are quantified. Paths forward for further improvement of a future system based on this camera’ operating principles are discussed.