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Brain pathways of pain empathy activated by pained facial expressions: a meta-analysis of fMRI using the activation likelihood estimation method

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Neural Regeneration Research 2019年第1期14卷 172-178页

作者： Ruo-Chu Xiong Xin Fu Li-Zhen wu cheng-Han Zhang Hong-Xiang wu Yu Shi Wen wu Clinical Medicine First Clinical Medicine School Southern Medical University Department of Rehabilitation Medicine Zhujiang Hospital Southern Medical University

OBJECTIVE: The objective of this study is to summarize and analyze the brain signal patterns of empathy for pain caused by facial expressions of pain utilizing activation likelihood estimation, a meta-analysis method. DATA SOURCES: Studies concerning the brain mechanism were searched from the Science Citation Index, Science Direct, PubMed, DeepDyve, Cochrane Library, SinoMed, Wanfang, VIP, China National Knowledge Infrastructure, and other databases, such as SpringerLink, AMA, Science Online, Wiley Online, were collected. A time limitation of up to 13 December 2016 was applied to this study. DATA SELECTION: Studies presenting with all of the following criteria were considered for study inclusion: Use of functional magnetic resonance imaging, neutral and pained facial expression stimuli, involvement of adult healthy human participants over 18 years of age, whose empathy ability showed no difference from the healthy adult, a painless basic state, results presented in Talairach or Montreal Neurological Institute coordinates, multiple studies by the same team as long as they used different raw data. OUTCOME MEASURES: Activation likelihood estimation was used to calculate the combined main activated brain regions under the stimulation of pained facial expression. RESULTS: Eight studies were included, containing 178 subjects. Meta-analysis results suggested that the anterior cingulate cortex(BA32), anterior central gyrus(BA44), fusiform gyrus, and insula(BA13) were activated positively as major brain areas under the stimulation of pained facial expression. CONCLUSION: Our study shows that pained facial expression alone, without viewing of painful stimuli, activated brain regions related to pain empathy, further contributing to revealing the brain's mechanisms of pain empathy.

关键词： nerve regeneration facial expression pain empathy functional magnetic resonance imaging GringleALE activation likelihood estimation brain function imaging anterior cingulate cortex anterior central gyrus fusiform gyrus insula neural regeneration

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河控浅水三角洲平原亚相沉积模式探讨——以鄂尔多斯盆地S59区块山西组一段为例

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成都理工大学学报（自然科学版） 2024年第1期51卷 102-116,129页

作者：欧阳诚段新国方健刘金库吴婷彭宇李洲宋荣彩中国石油川庆钻探工程公司地质勘探开发研究院成都610051 成都理工大学能源学院成都610059 中国石油川庆钻探工程公司苏里格项目经理部成都610051

鄂尔多斯盆地S59区块山一段,整体具有构造稳定、地势平坦、古水深较浅、湖平面频繁升降、物源充足等特点,发育浅水三角洲沉积体系。本文在前人研究的基础上,通过对取心井岩心分析及侧井相分析,探讨了浅水三角洲的沉积特征,建立了浅水三... 详细信息

鄂尔多斯盆地S59区块山一段,整体具有构造稳定、地势平坦、古水深较浅、湖平面频繁升降、物源充足等特点,发育浅水三角洲沉积体系。本文在前人研究的基础上,通过对取心井岩心分析及侧井相分析,探讨了浅水三角洲的沉积特征,建立了浅水三角洲平原亚相沉积模式。研究结果表明,山西组山一段为河控浅水三角洲沉积,浅水三角洲的陆上部分沉积过程与曲流河沉积具有一致性,发育边滩、“渐弃型”废弃河道、决口扇和洪泛平原等微相,平面上河道在凹岸不断侵蚀,凸岸不断堆积形成边滩微相。此外在凹岸发育一定规模的废弃河道,河道砂体呈南北向分布,发育少量的决口扇沉积,在河道间发育细粒沉积洪泛平原亚相。三角洲平原亚相沉积模式的建立为预测优质砂体发育位置提供地质依据。

关键词：鄂尔多斯盆地山一段河控浅水三角洲三角洲平原亚相沉积模式

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Probing Majorana Bound States in T-Shaped Junctions

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Chinese Physics Letters 2014年第3期31卷 152-155页

作者： wu Bin-He cheng Xiao WANG Chun-Rui GONG Wei-Jiang Department of Applied Physics Donghua University Shanghai 201620 College of Science Northeastern University Shenyang 110819

We investigate the transport properties of a pair of Majorana bound states in a T-shaped junction, where two normal leads are coupled with an identical Majorana bound state. Both the scattering matrix and the recursive Green function method show that the peak value of the differential conductance （Gpeak） in units of e2/h and the shot noise Fano factor in the zero bias limit （F0）, which are measured at the same lead and zero temperature, satisfy a linear relation as F0=1＋Gpeak/2, independent of the magnitude or symmetry of the coupling strengths to the leads. Therefore, combined measurements of the differential conductance and shot noise in the T-shaped geometry can serve as a characteristic signature in probing Majorana bound states.

关键词： BOUND states (Quantum mechanics) RESEARCH GREEN'S functions CONDENSED matter physics NUCLEAR research PHYSICS research

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荷叶黄酮纳米粒子的制备及其抗氧化稳定性研究

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江西化工 2024年第4期40卷 62-67页

作者：程一鑫丁若雯吴文慧易路遥胡振瀛尤云菲江西省药品检查员中心江西南昌330000 江西省药品检验检测研究院江西南昌330000 南昌大学生命科学学院江西南昌330031

对荷叶中黄酮的提取工艺进行了优化,并利用改性大米蛋白负载荷叶黄酮,对负载条件及负载后的纳米粒子抗氧化性进行了研究。结果表明:纳米粒子的制备条件为pH=7.0且蛋白:黄酮为20:7;荷叶提取物及其纳米粒子具有一定的抗氧化能力;纳米粒子... 详细信息

对荷叶中黄酮的提取工艺进行了优化,并利用改性大米蛋白负载荷叶黄酮,对负载条件及负载后的纳米粒子抗氧化性进行了研究。结果表明:纳米粒子的制备条件为pH=7.0且蛋白:黄酮为20:7;荷叶提取物及其纳米粒子具有一定的抗氧化能力;纳米粒子具有较好的抗氧化稳定性,能够有效保护荷叶黄酮的活性,对荷叶提取物活性的保护具有一定的控制作用。

关键词：荷叶黄酮纳米粒子抗氧化稳定性

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Multifunctional mixed analog/digital signal processor based on integrated photonics

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Opto-Electronic Science 2024年第8期3卷 1-12页

作者： yichen wu Qipeng Yang Bitao Shen Yuansheng Tao Xuguang Zhang Zihan Tao Luwen Xing Zhangfeng Ge Tiantian Li Bowen Bai Haowen Shu Xingjun Wang State Key Laboratory of Advanced Optical Communication Systems and Networks School of ElectronicsPeking UniversityBeijing 100871China College of Engineering Peking UniversityBeijing 100871China Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010China School of Electronic Engineering Xi’an University of Posts&TelecommunicationsXi’an 710121China Frontiers Science Center for Nano-optoelectronics Peking UniversityBeijing 100871China Peng cheng Laboratory Shenzhen 518055China

Photonic signal processing offers a versatile and promising toolkit for contemporary scenarios ranging from digital optical communication to analog microwave *** to its electronic counterpart,it eliminates inherent bandwidth limitations and meanwhile exhibits the potential to provide unparalleled scalability and flexibility,particularly through integrated ***,by far the on-chip solutions for optical signal processing are often tailored to specific tasks,which lacks versatility across diverse ***,we propose a streamlined chip-level signal processing architecture that integrates different active and passive building blocks in silicon-on-insulator(SOI)platform with a compact and efficient *** and in-depth analyses for the architecture are conducted at levels of device,system,and *** by appropriate configuring schemes,the photonic circuitry supports loading and processing both analog and digital signals *** distinct tasks are facilitated with one single chip across several mainstream fields,spanning optical computing,microwave photonics,and optical ***,it has demonstrated competitive performance in functions like image processing,spectrum filtering,and electro-optical bandwidth *** high universality and a compact form factor,the proposed architecture is poised to be instrumental for next-generation functional fusion systems.

关键词： silicon photonics multifunctional signal process microwave photonics optical computing optical communica-tion equalization

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基于深度强化学习的柔性作业车间节能调度研究

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工业工程 2024年第1期27卷 78-85,103页

作者：张中伟李艺高增恩武照云河南工业大学机电工程学院河南省超硬磨料磨削装备重点实验室河南郑州450001

针对当前柔性作业车间节能调度研究无法充分利用历史生产数据,且对复杂、动态、多变的车间生产环境适应性不足的问题,引入深度强化学习思想,利用具有代表性的深度Q网络(deep Q-network,DQN)求解柔性作业车间节能调度问题。将柔性作业车... 详细信息

针对当前柔性作业车间节能调度研究无法充分利用历史生产数据,且对复杂、动态、多变的车间生产环境适应性不足的问题,引入深度强化学习思想,利用具有代表性的深度Q网络(deep Q-network,DQN)求解柔性作业车间节能调度问题。将柔性作业车间节能调度问题转化为强化学习对应的马尔科夫决策过程。进而,提炼表征车间生产状态特征的状态值作为神经网络输入,通过神经网络拟合状态值函数,输出复合调度动作规则实现对工件以及加工机器的选择,并利用动作规则与奖励函数协同优化能耗。在3个不同规模的案例上与非支配排序遗传算法、超启发式遗传算法、改进狼群算法等典型智能优化方法进行求解效果对比。结果表明,DQN算法有较强的搜索能力,且最优解分布情况与提出的柔性作业车间节能调度模型聚焦能耗目标相一致,从而验证了所用DQN方法的有效性。

关键词：柔性作业车间节能调度深度强化学习深度Q网络马尔科夫决策

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Two tandem multicomponent reactions for the synthesis of sequence-defined polymers

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Science China Chemistry 2015年第11期58卷 1734-1740页

作者： Lu Yang Ze Zhang Bofei cheng Yezi You Decheng wu Chunyan Hong Key Laboratory of Soft Matter Chemistry Chinese Academy of Sciences Department of Polymer Science and Engineering University of Science and Technology of China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Polymer Physics & Chemistry Institute of Chemistry Chinese Academy of Sciences

Multicomponent polymerizations have become powerful tools for the construction of sequence-defined polymers. Although the Passerini multicomponent reaction has been widely used in the synthesis of sequence-defined polymers, the tandem usage of the Passerini multicomponent reaction and other multicomponent reactions in one-pot for the synthesis of sequence-defined polymers has not been developed until now. In this contribution, we report the tandem usage of the Passerini three-component reaction and the three-component amine-thiol-ene conjugation reaction in one pot for the synthesis of sequence-defined polymers. The Passerini reaction between methacrylic acid, adipaldehyde, and 2-isocyanobutanoate was carried out, affording a new molecule containing two alkene units. Subsequently, an amine and a thiolactone were added to the reaction system, whereupon the three-component amine-thiol-ene conjugating reaction occurred to yield a sequence-defined polymer. This method offers more rapid access to sequence-defined polymers with high molecular diversity and complexity.

关键词： multicomponent polymerizations multicomponent reaction sequence-defined polymers Passerini reaction

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融合新旧产品退化信息的可靠性建模研究

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机械与电子 2024年第4期42卷 9-14页

作者：吴怡唐家银王劲博刘新玲西南交通大学数学学院四川成都611756

针对2阶段退化产品截尾数据难以进行精确可靠性评估问题,利用贝叶斯融合新产品截尾数据和相似产品2阶段退化数据信息,并采用变系数分段回归模型和变点思想建立了变系数分段退化可靠性评估模型。首先,运用泰勒展开式和遗传算法得到相似... 详细信息

针对2阶段退化产品截尾数据难以进行精确可靠性评估问题,利用贝叶斯融合新产品截尾数据和相似产品2阶段退化数据信息,并采用变系数分段回归模型和变点思想建立了变系数分段退化可靠性评估模型。首先,运用泰勒展开式和遗传算法得到相似产品回归模型的参数估计值并拟合分布。其次,通过贝叶斯方法融合新旧产品第1阶段退化数据信息,基于变点的连续性建立阶段关系式得到第2阶段新产品参数估计量期望和方差。最后,利用相似产品退化量的分布类型和矩估计方法得到新产品退化量的分布以及分段可靠度函数。算例分析结果验证了该模型的有效性和精准性。

关键词：变系数分段回归模型截尾退化数据贝叶斯方法变点连续性分段退化可靠性评估模型

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Reconstruction of broken Si–O–Si bonds in iron ore tailings (IOTs) in concrete

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International Journal of Minerals,Metallurgy and Materials 2019年第10期26卷 1329-1336页

作者： Juan-hong Liu Yu-cheng Zhou Ai-xiang wu Hong-jiang Wang School of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Urban Underground Space Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of High-efficient Mining and Safety of Metal Mines Ministry of EducationUniversity of Science and Technology BeijingBeijing 100083China

This paper reports a study on the reconstruction of broken Si O Si bonds in iron ore tailings (IOTs) in concrete. Limestone and IOTs were used to investigate the influence of different types of coarse aggregates on the compressive strengths of concrete samples. The dif- ferences in interfacial transition zones (ITZs) between aggregate and paste were analyzed by scanning electron microscopy (SEM) and ener- gy-dispersive spectroscopy (EDS). Meanwhile, X-ray diffraction (XRD) and infrared spectroscopy (IR) were used to study microscopic changes in limestone and IOTs powders in a simple alkaline environment that simulated cement. The results show that the compressive strengths of IOTs concrete or paste are higher than those of limestone concrete or paste under identical conditions. The Ca/Si atom ratios in the ITZs of IOTs con- crete samples are lower than those of limestone concrete;the diffraction peak of the calcium silicate phase at 2θ = 29.5°, as well as the bands of Si O bonds shifting to lower wavenumbers, indicates reconstruction of the broken Si-O-Si bonds on the surfaces of IOTs with Ca(OH)2.

关键词： iron ore tailings broken Si O Si bonds alkaline environment reconstruction

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同构稀土金属-有机框架材料对离子型染料的吸附及光降解研究

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化工新型材料 2024年第6期52卷 234-238,246页

作者：程谊陆爱灵李田甜郑梦绮孙中华张致慧常州大学石油化工学院江苏省绿色催化与技术重点实验室常州213164 上田环境修复有限公司常州230000

以氨基化3,3′,5,5′-三联苯四羧酸(NH_(2)-H_(4)TPTC)为配体与稀土金属盐[Ho(NO_(3))_(3)·6H_(2)O、Er(NO_(3))_(3)·6H_(2)O]反应得到两个同构稀土金属-有机框架材料(MOFs)Er-NH_(2)-TPTC和Ho-NH_(2)-TPTC,两种MOFs材料在250℃以下具有良好的稳定性。选择不同类型的离子染料,并用所合成的材料进行吸附和光催化降解有机染料实验。结果表明:Er-NH_(2)-TPTC和Ho-NH_(2)-TPTC对离子型染料吸附效果优于中性染料,在光催化后对各类有机染料降解效果均得到提升。由于受染料分子尺寸的影响,两个同构稀土MOFs对小分子阳离子染料甲基蓝去除率可达99%,而对分子尺寸较大的阳离子染料罗丹明B降解效率最低,仅分别达到47%和73%。光催化降解的机理研究表明,降解过程中产生·O_(2)^(-)和·OH活性物质,此类自由基的产生有助于提高光催化降解效率。

关键词：稀土金属有-机骨架材料离子型染料吸附降解光催化

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