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Joint Feature Encoding and Task Alignment Mechanism for Emotion-Cause Pair Extraction

Computers, Materials & Continua 2025年第1期82卷 1069-1086页

作者： shi li Didi Sun College of Computer and Control Engineering Northeast Forestry UniversityHarbin150040China

With the rapid expansion of social media,analyzing emotions and their causes in texts has gained significant ***-cause pair extraction enables the identification of causal relationships between emotions and their triggers within a text,facilitating a deeper understanding of expressed sentiments and their underlying *** comprehension is crucial for making informed strategic decisions in various business and societal ***,recent research approaches employing multi-task learning frameworks for modeling often face challenges such as the inability to simultaneouslymodel extracted features and their interactions,or inconsistencies in label prediction between emotion-cause pair extraction and independent assistant tasks like emotion and cause *** address these issues,this study proposes an emotion-cause pair extraction methodology that incorporates joint feature encoding and task alignment *** model consists of two primary components:First,joint feature encoding simultaneously generates features for emotion-cause pairs and clauses,enhancing feature interactions between emotion clauses,cause clauses,and emotion-cause ***,the task alignment technique is applied to reduce the labeling distance between emotion-cause pair extraction and the two assistant tasks,capturing deep semantic information interactions among *** proposed method is evaluated on a Chinese benchmark corpus using 10-fold cross-validation,assessing key performance metrics such as precision,recall,and F1 *** results demonstrate that the model achieves an F1 score of 76.05%,surpassing the state-of-the-art by 1.03%.The proposed model exhibits significant improvements in emotion-cause pair extraction(ECPE)and cause extraction(CE)compared to existing methods,validating its *** research introduces a novel approach based on joint feature encoding and task alignment mechanisms,contributing to advancements in emotion-c

关键词： Emotion-cause pair extraction interactive information enhancement joint feature encoding label consistency task alignment mechanisms

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Statistical Research on Megahertz-peaked Spectra Pulsars

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Research in Astronomy and Astrophysics 2025年第1期25卷 116-134页

作者： Hong-Bing Cai li Chen shi-Dang li Kai Wang Hang liu JSNU SPBPU Institute of Engineering & SINO RUSSIAN Institute Jiangsu Normal University School of Physics and Electronic Engineering Jiangsu Normal University

Megahertz-peaked spectra(MPS) pulsars are referred as cases whose radio spectra turn over around 100 MHz. We identified 53 MPS pulsars based on the spectral data from the literature, and statistically analyzed the spatial location distribution, the magnetic field-period distribution, peak frequencies, spectral indices, and dispersion measures of these MPS pulsars. We found that there is a strong positive correlation between the dispersion measures and the peak frequencies of MPS pulsars, and negative correlations of the dispersion measures with spectral indices and the ages are also found. Such correlations suggest that the interstellar medium is an important factor that affects observational properties of MPS pulsars.

关键词： (stars:) pulsars: general ISM: general radio continuum: general

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Different Acupuncture Therapies for Postherpetic Neuralgia:An Overview of Systematic Reviews and Meta-analysis

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Chinese Journal of Integrative Medicine 2025年第1期31卷 55-67页

作者： XIA Yun-fan SUN Ruo-han li shi-min WANG Yi-yi li Rong-rong FANG Jian-qiao The Third Clinical Medical College of Zhejiang Chinese Medical University Hangzhou310000China Department of Rehabilitation Medicine Hangzhou Third People’s Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou310000China Department of Acupuncture the Third Affiliated Hospital of Zhejiang Chinese Medical UniversityHangzhou310000China

Background: Postherpetic neuralgia(PHN) is the most common complication of herpes zoster infection and affects patients' quality of life. Acupuncture therapy is regarded as a competitive method of treatment for analgesia. Objective: To summarize evidence from systematic reviews(SRs) and evaluate the effectiveness and safety of different acupuncture therapies for treating PHN. Methods: Eight electronic databases were searched from their inception to August 5, 2022, including 4 international electronic databases(PubMed, EMBASE, the Cochrane library, and Web of Science) and 4 Chinese databases(Chinese Biomedical Database, China National Knowledge Infrastructure, VIP Database and Wanfang Database).Methodological quality was assessed by A Measurement Tool to Assess Systematic Reviews 2(AMSTAR 2).The Risk of Bias in Systematic Review(ROBIS) tool was used to assess the risk of bias in SRs. Evidence level was assessed by the Grading of Recommendations Assessment, Development, and Evaluation(GRADE)approach. Results: Totally, 7 SRs were included, including 128 studies and 9,792 patients. In AMSTAR 2, most of the SRs were of low or critically low levels since they had more than 1 critical deficiency. In ROBIS, 1 SR(14.29%)was rated as high risk, and the other 6(85.71%) were rated as low risk. In the GRADE system, 9 outcomes(28.13%)were valued as high level, 5(15.63%) as moderate level, 1(3.13%) as low, and 17(53.13%) as very low. In the effectiveness of acupuncture therapy, the group "moxibustion vs. original medical treatment" [mean difference(MD)=–1.44, 95% confidence interval(CI): –1.80 to –1.08, I2=99%, P<0.00001] was of the highest heterogeneity and the group "bloodletting vs. original medical treatment"(MD=–2.80, 95% CI: –3.14 to –2.46, I2=0, P<0.00001)was of the lowest heterogeneity. Six SRs have reported the safety of their studies and no serious events were shown in the treatment and control groups. Conclusions: Acupuncture therapy seems to be effective in treating PH

关键词： acupuncture postherpetic neuralgia systematic review Chinese medicine

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Interfacial behaviors between ZG13Cr9Mo1VNbN stainless steel and chromite sand

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Journal of Iron and Steel Research International 2025年第1期32卷 129-143页

作者： shi-sen li Xi-min Zang Ji-lin Chen Jie Yang Yu-an Jing Zhi-ying Wang ling-zhong Kong School of Materials and Metallurgy University of Science and Technology LiaoningAnshan114051LiaoningChina School of Material Science and Engineering Shenyang University of TechnologyShenyang110870LiaoningChina Central Iron and Steel Research Institute Co. Ltd.Beijing100081China Xingtai Iron and Steel Co. Ltd.Xingtai054027HebeiChina

To elucidate the formation mechanisms of burn-on sand and metal penetration during sand casting,some laboratory experiments were carried out at different temperatures(1813,1833,1853,and 1873 K)and holding time(20,40,60,and 90 min)to simulate the interaction between ZG13Cr9Mo1VNbN stainless steel and chromite *** results demonstrate that the defects primarily consist of a mixture of the liquid phase,chromite,and *** main components of the liquid phase are SiO_(2),MnO,MgO,Cr_(2)O_(3),FeO,and Al_(2)O_(3),and the formation of Cr_(2)O_(3)through interfacial redox reactions has been *** presence of a liquid phase plays a pivotal role in influencing burn-on sand and metal *** reactions are prioritized,with burn-on sand maintaining a predominant *** the liquid phase quantity within the sand escalates,there is a corresponding incremental rise in the incidence of metal *** a minimal presence of the silicon element in steel can impact the liquid phase’s ***,the decomposition or dissolution of chromite sand is a significant factor in the development of burn-on sand and metal ***,a thorough investigation into the conditions and contributing factors of this phenomenon is essential for its effective management and mitigation.

关键词： Heat-resistant steel Chromite sand Interfacial reaction Burn-on sand Metal penetration Temperature Holding time

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Targeting vulnerable microcircuits in the ventral hippocampus of male transgenic mice to rescue Alzheimer‑like social memory loss

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Military Medical Research 2025年第1期12卷 48-71页

作者： Hui-Yang Lei Gui-lin Pi Ting He Rui Xiong Jing-Ru Lv Jia-Le liu Dong-Qin Wu Meng-Zhu li Kun shi shi-Hong li Na-Na Yu Yang Gao Hui-ling Yu lin-Yu Wei Xin Wang Qiu-Zhi Zhou Pei-lin Zou Jia-Yang Zhou Ying-Zhou liu Nai-Ting Shen Jie Yang Dan Ke Qun Wang Gong-Ping liu Xi-Fei Yang Jian-Zhi Wang Ying Yang Department of Pathophysiology School of Basic MedicineKey Laboratory of Education Ministry of China/Hubei Province for Neurological DisordersTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Traditional Chinese Medicine the Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014China Key Laboratory of Modern Toxicology of Shenzhen Shenzhen Center for Disease Control and PreventionShenzhen 518055GuangdongChina Co‑Innovation Center of Neuroregeneration Nantong UniversityNantong 226000JiangsuChina

Background:Episodic memory loss is a prominent clinical manifestation of Alzheimer’s disease(AD),which is closely related to tau pathology and hippocampal *** to the heterogeneity of brain neurons,the specific roles of different brain neurons in terms of their sensitivity to tau accumulation and their contribution to AD-like social memory loss remain ***,further investigation is ***:We investigated the effects of AD-like tau pathology by Tandem mass tag proteomic and phosphoproteomic analysis,social behavioural tests,hippocampal electrophysiology,immunofluorescence staining and in vivo optical fibre recording of GCaMP6f and ***,we utilized optogenetics and administered ursolic acid(UA)via oral gavage to examine the effects of these agents on social memory in ***:The results of proteomic and phosphoproteomic analyses revealed the characteristics of ventral hippocampal CA1(vCA1)under both physiological conditions and AD-like tau *** tau progressively accumulated,vCA1,especially its excitatory and parvalbumin(PV)neurons,were fully filled with mislocated and phosphorylated tau(p-Tau).This finding was not observed for dorsal hippocampal CA1(dCA1).The overexpression of human tau(hTau)in excitatory and PV neurons mimicked AD-like tau accumulation,significantly inhibited neuronal excitability and suppressed distinct discrimination-associated firings of these neurons within *** excitatory and PV neurons in vCA1 at specific rhythms and time windows efficiently ameliorated tau-impaired social ***,1 month of UA administration efficiently decreased tau accumulation via autophagy in a transcription factor EB(TFEB)-dependent manner and restored the vCA1 microcircuit to ameliorate tau-impaired social ***:This study elucidated distinct protein and phosphoprotein networks between dCA1 and vCA1 and highlighted the susceptibility of the vCA1 microcircuit to AD-like tau

关键词： Alzheimer’s disease Tau protein Ventral hippocampus Social memory Ursolic acid Transcription factor EB(TFEB)

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美国技术封锁对中国技术型跨境并购的影响

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科学学研究 2025年第1期43卷 38-48页

作者：马述忠李诗燕吴鹏浙江大学中国数字贸易研究院浙江杭州310058 浙江财经大学经济学院浙江杭州310018

本文基于证券数据公司全球并购(SDC M&A)数据库,运用DID方法探究美国技术封锁对中国向第三方经济体技术型跨境并购的影响。研究发现:美国对华技术封锁总体上促进了中国向第三方经济体实施技术型跨境并购,这一结论在变换识别策略、变换... 详细信息

本文基于证券数据公司全球并购(SDC M&A)数据库,运用DID方法探究美国技术封锁对中国向第三方经济体技术型跨境并购的影响。研究发现:美国对华技术封锁总体上促进了中国向第三方经济体实施技术型跨境并购,这一结论在变换识别策略、变换样本、伪证检验等一系列稳健性检验后以然成立。机制分析表明,美国技术封锁刺激了中国投资者向高可替代性或与中国高技术部门联系密切的经济体的技术型跨境并购,因此可以认为技术封锁带来的替代效应大于消极示范效应。此外,东道国与美国的政治经济关系并不构成美国技术封锁影响中国向第三方经济体技术型并购的重要因素。异质性分析发现,美国技术封锁显著促进了中国在电信软件和医疗领域对第三方经济体的跨境并购,但在能源和交通领域的影响不显著。

关键词：技术型跨境并购技术封锁双重差分

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磁性MZF@PDA-PAC活化过一硫酸盐降解水中双氯芬酸钠的机制

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中国环境科学 2025年第1期45卷 185-197页

作者：李世尧余静徐冬莹成都信息工程大学资源环境学院四川成都610225

为制备易固液分离和稳定性好的高效非均相碳基磁性催化剂活化过一硫酸钾(PMS),本文以Mn_(0.6)Zn_(0.4)Fe_(2)O_(4)(MZF)磁性纳米颗粒(MNPs)为磁核,利用多巴胺(DA)和活性炭(PAC),通过分步沉积法制备得到磁性纳米复合物MZF@PDA-PAC,采用... 详细信息

为制备易固液分离和稳定性好的高效非均相碳基磁性催化剂活化过一硫酸钾(PMS),本文以Mn_(0.6)Zn_(0.4)Fe_(2)O_(4)(MZF)磁性纳米颗粒(MNPs)为磁核,利用多巴胺(DA)和活性炭(PAC),通过分步沉积法制备得到磁性纳米复合物MZF@PDA-PAC,采用扫描电镜、透射电镜和振动样品磁强计等对MZF@PDA-PAC进行了表征,研究了MZF@PDA-PAC活化PMS降解双氯芬酸钠(DS)的效能,探究了DS的去除机理及MZF@PDA-PAC活化PMS的机制.结果表明,MZF@PDA-PAC具有“核-壳”结构,在水中具有优异的分散性能和固液分离性能;MZF@PDA-PAC+PMS体系能通过自由基途径(SO_(4)^(·−)、HO·和O_(2)^(·−))和非自由基途径(电子转移)去除DS,DS去除率和TOC去除率分别为99.50%和66.32%,MZF@PDA-PAC具有较好的稳定性与循环使用性能,在难降解有机污染物去除方面具有广阔的应用前景.

关键词：磁性催化剂非均相硫酸根自由基双氯芬酸钠降解

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Significant increase in thermal conductivity of cathode material liFePO₄ by Na substitution: A machine learning interatomic potential-assisted investigation

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CHINESE PHYSICS B 2025年第2期34卷 463-468页

作者： li, shi-Yi liu, Qian Zeng, Yu-Jia Xie, Guofeng Zhou, Wu-Xing Hunan Univ Sci & Technol Sch Mat Sci & Engn Hunan Prov Key Lab Adv Mat New Energy Storage & Co Xiangtan 411201 Peoples R China

liFePO4 is a cathode material with good thermal stability, but low thermal conductivity is a critical problem. In this study, we employ a machine learning potential approach based on first-principles methods combined with the Boltzmann transport theory to investigate the influence of Na substitution on the thermal conductivity of liFePO4 and the impact of li-ion de-embedding on the thermal conductivity of li3/4Na1/4FePO4, with the aim of enhancing heat dissipation in li-ion batteries. The results show a significant increase in thermal conductivity due to an increase in phonon group velocity and a decrease in phonon anharmonic scattering by Na substitution. In addition, the thermal conductivity increases significantly with decreasing li-ion concentration due to the increase in phonon lifetime. Our work guides the improvement of the thermal conductivity of liFePO4, emphasizing the crucial roles of both substitution and li-ion detachment/intercalation for the thermal management of electrochemical energy storage devices.

关键词： lattice thermal conductivity machine learning potential liFePO4

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西安北院门历史文化街区公共空间更新设计研究

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城市建筑 2025年第2期22卷 39-41页

作者：石丽西安美术学院建筑环境艺术系

北院门历史文化街区作为西安明城区内极具地域特色的街区,以其深厚的历史内涵、浓厚的回坊民族文化特色、复杂的街巷空间肌理,承载着现代城市发展背景下传统文化传承与创新的时代诉求。然而,随着城市化的快速发展,街区公共空间的文化特... 详细信息

北院门历史文化街区作为西安明城区内极具地域特色的街区,以其深厚的历史内涵、浓厚的回坊民族文化特色、复杂的街巷空间肌理,承载着现代城市发展背景下传统文化传承与创新的时代诉求。然而,随着城市化的快速发展,街区公共空间的文化特质逐渐弱化,在多重功能需求下,功能失衡问题日益显现。文章聚焦北院门历史文化街区公共空间更新问题,通过文献分析、实地调研与案例研究,结合社区人群分析、功能优化方案探索,从历史及地域特色文化保护、功能复合、社区参与等方面提出系统性的更新设计方法。研究旨在协调传统历史文化保护与现代需求之间的关系,提升公共空间的活力与综合价值,为北院门历史文化街区的可持续发展提供可行性建议。

关键词：北院门历史文化街区公共空间活力更新历史保护社区参与

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考虑泊松效应的流泥轴对称真空过滤理论

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岩土工程学报 2025年第2期47卷 243-254页

作者：蔡袁强叶晓倩史吏浙江工业大学土木工程学院浙江杭州310014

真空预压处理流泥地基时,仅排水板附近的土体得到明显加固,以排水板为轴线形成一个凸出地表的“土柱”。土柱作为流泥地基真空预压处理的特有现象,导致流泥地基淤堵严重、处理效果差。根据流泥固液两相的连续、运动、平衡以及土柱移动... 详细信息

真空预压处理流泥地基时,仅排水板附近的土体得到明显加固,以排水板为轴线形成一个凸出地表的“土柱”。土柱作为流泥地基真空预压处理的特有现象,导致流泥地基淤堵严重、处理效果差。根据流泥固液两相的连续、运动、平衡以及土柱移动边界方程,并考虑土柱土体泊松效应,在柱坐标系下建立了流泥轴对称真空过滤模型,获得了流泥地基真空预压过程中的土柱生长规律和土柱淤堵性状,并与PIV试验进行了对比验证。结果表明:土柱内渗透系数降幅高达97%,致密土柱是淤堵的本质;泊松效应和真空荷载幅值对土柱半径以及流泥固结效果的影响十分明显;低幅值真空荷载有利于形成半径小且较为疏松的淤堵区,从而缓解淤堵性状。

关键词：流泥真空预压过滤土柱淤堵固结泊松效应

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