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Functional neuroplasticity of facilitation and interference effects on inhibitory control following 3-month physical exercise in aging

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Scientific Reports 2024年第1期14卷 1-13页

作者： Wu, Hong-Yi Huang, Chih-Mao Hsu, Ai-Ling Chen, Chiao-Nan Wu, Changwei W. Chen, Jyh-Horng Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei Taiwan Department of Biological Science and Technology National Yang Ming Chiao Tung University Hsinchu Taiwan Bachelor Program in Artificial Intelligence Chang Gung University Taoyuan Taiwan Department of Psychiatry Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan Department of Physical Therapy and Assistive Technology National Yang Ming Chiao Tung University Taipei Taiwan Graduate Institute of Mind Brain and Consciousness Taipei Medical University New Taipei Taiwan Research Center of Sleep Medicine Taipei Medical University Hospital Taipei Taiwan Department of Electrical Engineering National Taiwan University Taipei Taiwan

Preservation of executive function, like inhibition, closely links to the quality of life in senior adults. Although neuroimaging literature has shown enhanced inhibitory function followed by aerobic exercise, current evidence implies inconsistent neuroplasticity patterns along different time durations of exercise. Hence, we conducted a 12-week exercise intervention on 12 young and 14 senior volunteers and repeatedly measured the inhibitory functionality of distinct aspects (facilitation and interference effects) using the numerical Stroop task and functional Magnetic Resonance Imaging. Results showcased improved accuracy and reduced reaction times (RT) after 12-week exercise, attributed to frontoparietal and default mode network effects. In young adults, the first phase (0 to six weeks) exercise increased the activation of the right superior medial frontal gyrus, associated with reduced RT in interference, but in the second intervention phase (six to twelve weeks), the decreased activation of the left superior medial frontal gyrus positively correlated with reduced RT in facilitation. In senior adults, the first six-week intervention led to reduced activations of the inferior frontal gyrus, inferior parietal gyrus, and default mode network regions, associated with the reduced RT in interference. Still, in the second intervention phase, only the visual area exhibited increased activity, associated with reduced RT in interference. Except for the distinctive brain plasticity between the two phases of exercise intervention, the between-group comparison also presented that the old group gained more cognitive benefits within the first six weeks of exercise intervention;however, the cognitive improvements in the young group occurred after six weeks of intervention. Limited by the sample size, these preliminary findings corroborated the benefits of aerobic exercise on the inhibitory functions, implying an age × exercise interaction on the brain plasticity for both facilita

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Ground state of the S=12 triangular lattice Heisenberg-like antiferromagnet Ba3CoSb2O9 in an out-of-plane magnetic field

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physical Review B 2022年第21期105卷 214433-214433页

作者： X. Z. Liu O. Prokhnenko M. Bartkowiak A. Gazizulina D. Yamamoto A. Matsuo K. Kindo K. Okada N. Kurita H. Tanaka Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices School of Physics Sun Yat-sen University Guangzhou 510275 China Centre for Physical Mechanics and Biophysics School of Physics Sun Yat-sen University Guangzhou 510275 China Center for Neutron Science and Technology School of Physics Sun Yat-sen University Guangzhou 510275 China Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner-Platz 1 D-14109 Berlin Germany Department of Physics College of Humanities and Sciences Nihon University Tokyo 156-8550 Japan Institute for Solid State Physics University of Tokyo Kashiwa Chiba 277-8581 Japan Department of Physics Tokyo Institute of Technology Oh-okayama Meguro-ku Tokyo 152-8551 Japan

Spin-1/2 triangular lattice Heisenberg antiferromagnet has been accepted as an ideal system for quantum magnetism studies and quantum simulations. This system, for which the classical ground state degeneracy is lifted by quantum fluctuations, exhibits a series of novel spin structures for a field applied in-plane and out-of-plane. It has been found that both anisotropy and interlayer interaction play an important role in the stabilization of the spin configurations in a magnetic field. Conversely, the phase transitions and spin-state evolution in a field along various orientations can provide a deep insight into physics of the triangular lattice Heisenberg antiferromagnet system. While the quantum magnetization process in an in-plane field has been studied extensively, the ground state evolution in the field along the c axis requires further investigation. Here we performed high field magnetization and neutron scattering investigations on a model system of spin-1/2 triangular lattice Heisenberg antiferromagnet Ba3CoSb2O9 with field along c axis and with a small offset angle. For H∥c, the magnetization reveals a narrow plateau prompting a UUD-like phase, which could be suppressed by tilting the field away from the c axis. From the neutron data, a phase transition μ0Hc1∼12 T is detected and interpreted as a transition from an umbrella to a coplanar phase. Around about 22.5 T (μ0Hc2) for H∥c, another transition is observed which might be attributed to a transition between the coplanar V and V′ phases based on a comparison with the calculations and previous results. Theoretical calculations using the large-size cluster mean-field plus scaling method predicts a similar phase evolution as the previous semiclassical analysis, and agree with experiment well. The discrepancies between theory and experiment are also discussed, suggesting the physics of a triangular lattice Heisenberg antiferromagnet in a field along c axis has not been fully unraveled.

关键词： Antiferromagnetism Frustrated magnetism High magnetic fields Magnetic order Magnetic phase transitions Magnetic susceptibility Cluster methods Magnetization measurements Neutron diffraction Neutron scattering Susceptibility measurements

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Effect of a single session of sensorimotor rhythm neurofeedback training on the putting performance of professional golfers

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Scandinavian Journal of Medicine and science in Sports 2024年第1期34卷 e14540-e14540页

作者： Wu, Jia-Hao Chueh, Ting-Yu Yu, Chien-Lin Wang, Kuo-Pin Kao, Shih-Chun Gentili, Rodolphe J. Hatfield, Bradley D. Hung, Tsung-Min Department of Physical Education and Sport Sciences National Taiwan Normal University Taipei Taiwan Department of Kinesiology University of Maryland College Park MD United States Center of Excellence “Cognitive Interaction Technology” (CITEC) Bielefeld University Bielefeld Germany Neurocognition and Action – Biomechanics Research Group Faculty of Psychology and Sports Science Bielefeld University Bielefeld Germany Department of Health and Kinesiology Purdue University West Lafayette IN United States Program in Neuroscience and Cognitive Science University of Maryland College Park MD United States Institute for Research Excellence and Learning Sciences National Taiwan Normal University Taipei Taiwan

Sensorimotor rhythm (SMR) activity has been associated with automaticity and flow in motor execution. Studies have revealed that neurofeedback training (NFT) of the SMR can improve sports performance;however, few studies have adequately explored the effects of a single session of such NFT or examined the possible mechanisms underlying these effects on sports performance. This study recruited 44 professional golfers to address these gaps in the literature. A crossover design was employed to determine the order of the participation in the NFT and no-training control conditions. The participants were asked to perform 60 10-foot putts while electroencephalograms (EEGs) were recorded before and after the tasks. In pre-and post-tests, visual analog scales were used to assess the psychological states associated with SMR activities including the levels of attention engagement, conscious motor control, and physical relaxation. The results revealed that a single NFT session effectively increased SMR power and improved putting performance compared with the control condition. The subjective assessments also revealed that the participants reported lower attention engagement, less conscious control of the motor details and were more relaxed in the putting task, suggesting that SMR NFT promoted effortless and quiescent mental states during motor preparation for a putting task. This study aligns with theoretical hypotheses and extends current knowledge by revealing that a single session of SMR NFT can effectively enhance SMR power and improve putting performance in professional golfers. It also provides preliminary evidence of the possible underlying mechanisms that drive the effect of SMR NFT on putting performances. © 2023 The Authors. Scandinavian Journal of Medicine & science In Sports published by John Wiley & Sons Ltd.

关键词： EEG neurofeedback training professional golf putting sensorimotor rhythm sports performance

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Nonreciprocal transport in a bilayer of MnBi2Te4 and Pt

arXiv

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arXiv 2022年

作者： Ye, Chen Xie, Xiangnan Lv, Wenxing Huang, Ke Yang, Allen Jian Jiang, Sicong Liu, Xue Zhu, Dapeng Qiu, Xuepeng Tong, Mingyu Zhou, Tong Hsu, Chuang-Han Chang, Guoqing Lin, Hsin Li, Peisen Yang, Kesong Wang, Zhenyu Jiang, Tian Wang, Xiao Renshaw Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link 637371 Singapore State Key Laboratory of High Performance Computing College of Computer Science and Technology National University of Defense Technology Changsha410073 China Physics Laboratory Industrial Training Center Shenzhen Polytechnic Guangdong Shenzhen518055 China Department of NanoEngineering Program of Chemical Engineering University of California La Jolla San DiegoCA92093-0448 United States Program of Materials Science and Engineering University of California La Jolla San DiegoCA92093-0418 United States Institutes of Physical Science and Information Technology Anhui University Hefei230601 China Fert Beijing Institute MIIT Key Laboratory of Spintronics School of Integrated Circuit Science and Engineering Beihang University Beijing100191 China Beihang-Goertek Joint Microelectronics Institute Qingdao Research Institute Beihang University Qingdao266000 China Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and Engineering Tongji University Shanghai200092 China College of Advanced Interdisciplinary Studies National University of Defense Technology Changsha410073 China Insitute of Physics Academia Sinica Taipei115229 Taiwan College of Intelligence Science and Technology National University of Defense Technology Changsha410073 China National Innovation Institute of Defense Technology Academy of Military Sciences PLA China Beijing100010 China Beijing Academy of Quantum Information Sciences Beijing100084 China Beijing Institute for Advanced Study National University of Defense Technology Changsha410073 China School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Ave 639798 Singapore

MnBi2Te4 (MBT) is the first intrinsic magnetic topological insulator with the interaction of spin-momentum locked surface electrons and intrinsic magnetism, and it exhibits novel magnetic and topological phenomena. Recent studies suggested that the interaction of electrons and magnetism can be affected by the Mn-doped Bi2Te3 phase at the surface due to inevitable structural defects. Here we report an observation of nonreciprocal transport, i.e. current-direction-dependent resistance, in a bilayer composed of antiferromagnetic MBT and nonmagnetic Pt. The emergence of the nonreciprocal response below the Néel temperature confirms a correlation between nonreciprocity and intrinsic magnetism in the surface state of MBT. The angular dependence of the nonreciprocal transport indicates that nonreciprocal response originates from the asymmetry scattering of electrons at the surface of MBT mediated by magnon. Our work provides an insight into nonreciprocity arising from the correlation between magnetism and Dirac surface electrons in intrinsic magnetic topological insulators. © 2022, CC BY.

关键词： Magnetism

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Cold atmospheric plasma-enabled platelet vesicle incorporated iron oxide nano-propellers for thrombolysis

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Materials Today Bio 2023年 23卷 100876页

作者： Jheng, Pei-Ru Chiang, Chia-Che Kang, Jiunn-Horng Fan, Yu-Jui Wu, Kevin C.-W. Chen, Yan-Ting Liang, Jia-Wei Bolouki, Nima Lee, Jyh-Wei Hsieh, Jang-Hsing Chuang, Er-Yuan Graduate Institute of Nanomedicine and Medical Engineering Graduate Institute of Biomedical Materials and Tissue Engineering Institute of Biomedical Optomechatronics International Ph.D. Program in Biomedical Engineering School of Biomedical Engineering College of Biomedical Engineering Professional Master Program in Artificial Intelligence in Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Department of Physical Medicine and Rehabilitation Taipei Medical University Hospital Taipei Taiwan Institute of Biomedical Engineering & Nanomedicine National Health Research Institute Keyan Road Zhunan Miaoli City350 Taiwan Department of Chemical Engineering National Taiwan University No.1 Sec. 4 Roosevelt Rd Taipei10617 Taiwan Department of Plasma Physics and Technology Faculty of Science Masaryk University Brno Czech Republic Center for Plasma and Thin Film Technologies Ming Chi University of Technology New Taipei City Taiwan Department of Materials Engineering Ming Chi University of Technology New Taipei City Taiwan Cell Physiology and Molecular Image Research Center Taipei Medical University-Wan Fang Hospital Taipei11696 Taiwan

A new approach to treating vascular blockages has been developed to overcome the limitations of current thrombolytic therapies. This approach involves biosafety and multimodal plasma-derived theranostic platelet vesicle incorporating iron oxide constructed nano-propellers platformed technology that possesses fluorescent and magnetic features and manifold thrombus targeting modes. The platform is capable of being guided and visualized remotely to specifically target thrombi, and it can be activated using near-infrared phototherapy along with an actuated magnet for magnetotherapy. In a murine model of thrombus lesion, this proposed multimodal approach showed an approximately 80 % reduction in thrombus residues. Moreover, the new strategy not only improves thrombolysis but also boosts the rate of lysis, making it a promising candidate for time-sensitive thrombolytic therapy. © 2023 The Authors

关键词： Infrared devices

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Strain-induced resonances in the dynamical quadratic magnetoelectric response of multiferroics

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npj Computational Materials 2020年第1期6卷 1156-1161页

作者： S.Omid Sayedaghaee Charles Paillard Sergey Prosandeev Bin Xu Laurent Bellaiche Physics Department and Institute for Nanoscience and Engineering University of ArkansasFayettevilleArkansas 72701USA Microelectronics-Photonics Program University of ArkansasFayettevilleArkansas 72701USA Laboratoire Structures Propriétés et Modélisation des SolidesCentraleSupélecCNRS UMR 8580UniversitéParis-Saclay91190 Gifsur-YvetteFrance Institute of Physics and Physics Department of Southern Federal University Rostov-na-Donu 344090Russia School of Physical Science and Technology Soochow UniversitySuzhouJiangsu 215006China

For the last few years,the research interest in magnetoelectric(ME)effect,which is the cross-coupling between ferroelectric and magnetic ordering in multiferroic materials,has experienced a significant *** extensive recent studies are not only conducted towards the design of sensors,actuators,transducers,and memory devices by taking advantage of the cross-control of polarization(or magnetization)by magnetic(or electric)fields,but also aim to create a clearer picture in understanding the sources of ME responses and the novel effects associated with *** we derive analytical models allowing to understand the striking and novel dynamics of ME effects in multiferroics and further confirm it with atomistic ***,the role of strain is revealed to lead to the existence of electroacoustic magnons,a new quasiparticle that mixes acoustic and optical phonons with magnons,which results in resonances and thus a dramatic enhancement of magnetoelectric ***,a unique aspect of the dynamical quadratic ME response under a magnetic field with varying frequencies,which is the second harmonic generation(SHG),has not been discussed prior to the present *** SHGs put emphasis on the fact that nonlinearities should be considered while dealing with such systems.

关键词： quadratic dynamical resonance

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Quiescent luminosities of accreting neutron stars with different equation of states

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physical Review D 2021年第6期103卷 063009-063009页

作者： Helei Liu Akira Dohi Masa-aki Hashimoto Yasuhide Matsuo Guo-Liang Lü Tsuneo Noda School of Physical Science and Technology Xinjiang University Urumqi 830046 China Department of Physics Kyushu University Fukuoka 819-035 Japan Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS) RIKEN Wako 351-0198 Japan Nippo-cho Minatokouhoku-ku Yokohama Kanagawa 223-0057 Japan Kurume Institute of Technology Kurume Fukuoka 830-0052 Japan

We model the quiescent luminosity of accreting neutron stars with several equation of states (EOSs), including the effect of pion condensation and superfluidity. As a consequence of comparison with the observations, we show that the results with Togashi EOS (the strong direct Urca process is forbidden) and TM1e EOS (mass at direct Urca process is 2.06 M⊙) can explain the observations well by considering pion condensation and the effect of superfluidity, while LS220 EOS and TM1 EOS can explain the observations well by considering the baryon direct Urca process and the effect of superfluidity. Besides, we compare the results with the observations of a neutron star RX J0812.4-3114 which has the low average mass accretion rate (⟨M˙⟩∼(4–15)×10−12 M⊙ yr−1) but high thermal luminosity (Lq∞∼(0.6–3)×1033 erg s−1), and we suggest that a low-mass neutron star (<1 M⊙) with minimum cooling can explain the lower limit of the observation of thermal luminosity of RX J0812.4-3114, which is qualitatively consistent with the previous work [Zhao et al., Soft excess in the quiescent Be/X-ray pulsar RX J0812.4-3114, Mon. Not. R. Astron. Soc. 488, 4427 (2019)]. However, to explain its upper limit, some other heating mechanisms besides standard deep crustal heating may be needed.

关键词： General relativity equations & solutions Nuclear matter in neutron stars X ray astronomy X ray bursts

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Experimental observation of one-dimensional motion of interstitial skyrmion in FeGe

arXiv

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arXiv 2022年

作者： Song, Dongsheng Wang, Weiwei Yu, Jie-Xiang Zhang, Peng Pershoguba, Sergey S. Yin, Gen Wei, Wensen Jiang, Jialiang Ge, Binghui Fan, Xiaolong Tian, Mingliang Rosch, Achim Zang, Jiadong Du, Haifeng Institutes of Physical Science and Information Technology Anhui University Hefei230601 China Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory HFIPS Anhui Chinese Academy of Sciences Hefei230031 China School of Physical Science and Technology Soochow University Suzhou215006 China Key Laboratory for Magnetism and Magnetic Materials The Ministry of Education Lanzhou University Lanzhou730000 China Department of Physics and Astronomy University of New Hampshire DurhamNH03824 United States Department of Physics Georgetown University WashingtonDC20057 United States Science Island Branch of Graduate School University of Science and Technology of China Anhui Hefei230026 China School of Physics and Materials Science Anhui University Hefei230601 China Institute for Theoretical Physics University of Cologne Cologne50937 Germany Materials Science Program University of New Hampshire DurhamNH03824 United States

The interplay between dimensionality and topology manifests in magnetism via both exotic texture morphology and novel dynamics. A free magnetic skyrmion exhibits the skyrmion Hall effect under electric currents. Once it is confined in one-dimensional (1D) channels, the skyrmion Hall effect would be suppressed, and the current-driven skyrmion speed should be boosted by the non-adiabatic spin transfer torque β. Here, we experimentally demonstrate that stripes of a spatially modulated spin helix serve as natural 1D channels to restrict skyrmion. Using FeGe as a benchmark, an interstitial skyrmion is created by geometry notch and further moves steadily without the skyrmion Hall effect. The slope of the current-velocity curve for 1D skyrmion is enhanced almost by an order of magnitude owing to a large β in FeGe. This feature is also observed in other topological defects. Utilizing the 1D skyrmion dynamics would be a highly promising route to implement topological spintronic devices. © 2022, CC BY.

关键词： Germanium compounds

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Thiol-5-methylene pyrrolones hydrogels with pH-tunable stress-relaxation and self-healing properties

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Supramolecular Materials 2023年第1期2卷 100041-100041页

作者： Zhou, Yanyan Yang, Jiahui Wang, Zhiyuan Li, Yiran Li, Ying Wenzhou Key Laboratory of Biophysics Wenzhou Institute University of Chinese Academy of Sciences Zhejiang Wenzhou 325000 China School of Physical Sciences University of Chinese Academy of Sciences Beijing 100049 China Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State Microstructure Key Laboratory of Intelligent Optical Sensing and Manipulation Ministry of Education Department of Physics Nanjing University Nanjing 210093 China Medical School Nanjing University Nanjing 210093 China Institute of Advanced Materials and Flexible Electronics (IAMFE) School of Chemistry and Materials Science Nanjing University of Information Science & Technology 219 Ningliu Road Nanjing 210044 China Institute of Neuroscience State Key Laboratory of Neuroscience Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of Sciences 320 Yue-Yang Road Shanghai 200031 China University of Chinese Academy of Sciences 19A Yu-Quan Road Beijing 100049 China

Hydrogels containing dynamically crosslinked networks through covalent bonds have garnered substantial attention in both academia and technology sectors. This interest stems from their impressive mechanical stability and their unique spatiotemporal dynamic characteristics. Among the various type of dynamic covalent bonds used for preparation hydrogel, the 5-methylene pyrrolones (5MP) and thiol reaction stands out as one of the most prevalent. Given its reliability, efficiency and selectivity, thiol-5MP reaction has long been recognized as some of the most efficient Micheal additions. In this work, by utilizing thiol-5MP Michael addition with improved stability and specificity, a new type of dynamic hydrogel is easily prepared. Notably, the mechanical attributes of the resultant thiol-5MP hydrogels can be finely tuned by modulating the pH during their preparation process. Furthermore, hydrogels formulated under neutral (pH 7.5) or alkaline (pH 8.5) conditions display enhanced stress-relaxation response and superior self-healing capabilities compared to those generated under acidic conditions (pH 6.5). As revealed by single-molecule force spectroscopy assays, the pH-tunable mechanical properties are attributed to the pH-dependent dynamics of thiol-5MP bonds. This work showcases an innovative avenue for crafting dynamic hydrogels featuring pH-adjustable bulk characteristics, highlighting the versatility of thiol-5MP bonds as fundamental building blocks for the design of functional hydrogel materials. © 2023 The Author(s)

关键词： 5‑Methylene pyrrolones Dynamic covalent bond Hydrogels Self-healing Stress-relaxation

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Cavity-mediated superthermal phonon correlations in the ultrastrong coupling regime

arXiv

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arXiv 2024年

作者： Kim, Dasom Hou, Jin Lee, Geon Agrawal, Ayush Kim, Sunghwan Zhang, Hao Bao, Di Baydin, Andrey Wu, Wenjing Tay, Fuyang Huang, Shengxi Chia, Elbert E.M. Kim, Dai-Sik Seo, Minah Mohite, Aditya D. Hagenmüller, David Kono, Junichiro Applied Physics Graduate Program Smalley–Curl Institute Rice University HoustonTX77005 United States Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Department of Materials Science and NanoEngineering Rice University HoustonTX77005 United States Sensor System Research Center Korea Institute of Science and Technology Seoul02792 Korea Republic of Department of Physics and Astronomy Seoul National University Seoul08826 Korea Republic of Department of Chemical and Biomolecular Engineering Rice University Houston77005 United States Ulsan44919 Korea Republic of Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore637371 Singapore Smalley–Curl Institute Rice University HoustonTX77005 United States Rice Advanced Materials Institute Rice University HoustonTX77005 United States KU–KIST Graduate School of Converging Science and Technology Korea University Seoul02841 Korea Republic of Université de Strasbourg CNRS Strasbourg67200 France Department of Physics and Astronomy Rice University HoustonTX77005 United States

Phonons, or vibrational quanta, are behind some of the most fundamental physical phenomena in solids, including superconductivity, Raman processes, and broken-symmetry phases. It is therefore of fundamental importance to find ways to harness phonons for controlling these phenomena and developing novel quantum technologies. However, the majority of current phonon control techniques rely on the use of intense external driving fields or strong anharmonicities, which restricts their range of applications. Here, we present a scheme for controlling the intensity fluctuations in phonon emission at room temperature based on multimode ultrastrong light–matter coupling. The multimode ultrastrong coupling regime is achieved by coupling two optical phonon modes in lead halide perovskites to an array of nanoslots, which operates as a single-mode cavity. The extremely small mode volume of the nanoslots enables unprecedented coupling strengths in a cavity phonon-polariton system. In the far-detuned, low-cavity-frequency regime, we demonstrate that the nanoslot resonator mediates an effective coupling between the phonon modes, resulting in superthermal phonon bunching in thermal equilibrium, both within the same mode and between different modes. Experimental results are in good agreement with a multimode Hopfield model. Our work paves the way for the tailoring of phonons to modify charge and energy transport in perovskite materials, with potential applications in light-collecting or emitting devices. Copyright © 2024, The Authors. All rights reserved.

关键词： Perovskite

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