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Recent advances of neural text generation:Core tasks,datasets,models and challenges

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Science China(Technological Sciences) 2020年第10期63卷 1990-2010页

作者： JIN HanQi CAO Yue WANG TianMing xing xinyu WAN XiaoJun Wangxuan Institute of Computer Technology Peking UniversityBeijing 100871China Center for Data Science Peking UniversityBeijing 100871China The MOE Key Laboratory of Computational Linguistics Peking UniversityBeijing 100871China

In recent years,deep neural network has achieved great success in solving many natural language processing ***,substantial progress has been made on neural text generation,which takes the linguistic and non-linguistic input,and generates natural language *** survey aims to provide an up-to-date synthesis of core tasks in neural text generation and the architectures adopted to handle these tasks,and draw attention to the challenges in neural text *** first outline the mainstream neural text generation frameworks,and then introduce datasets,advanced models and challenges of four core text generation tasks in detail,including AMR-to-text generation,data-to-text generation,and two text-to-text generation tasks(i.e.,text summarization and paraphrase generation).Finally,we present future research directions for neural text *** survey can be used as a guide and reference for researchers and practitioners in this area.

关键词： natural language generation neural text generation AMR-to-text data-to-text text summarization paraphrase generation

电针介导AMPK/GFAT-1/VEGF对缺血性脑卒中小鼠脑血流量及运动功能的影响

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安徽中医药大学学报 2024年第4期43卷 47-52页

作者：邢馨玉钟文谢玉华崔帅安徽中医药大学研究生院安徽合肥230012 安徽中医药大学针灸推拿学院安徽合肥230012 经脉脏腑相关安徽省重点实验室安徽合肥230012

目的观察电针“百会”“大椎”穴对缺血性脑卒中小鼠脑血流量及运动功能的影响,揭示腺苷酸活化蛋白激酶(adenosine 5′-monophosphate-activated protein kinase,AMPK)/谷氨酰胺-6-磷酸果糖转氨酶-1(glutamine-fructose-6-phosphate aminotransferase-1,GFAT-1)/血管内皮生长因子(vascular endothelial growth factor,VEGF)分子通路参与电针减轻血管损伤,改善肢体运动功能的作用机制。方法将C57雄性小鼠随机分为假手术组、模型组、电针组,每组6只。采用光栓法制备缺血性脑卒中小鼠模型。采用走格子测试和爬杯实验评估小鼠运动功能;TTC染色和激光散斑血流成像仪评估脑梗死体积与脑血流灌注量变化;Western blot法检测AMPK、磷酸化AMPK(phosphorylated AMPK,p-AMPK)、GFAT-1、VEGF的表达水平。结果与假手术组比较,模型组小鼠运动功能受损(P<0.05),脑梗死体积增加(P<0.05),脑血流灌注量减少(P<0.05),AMPK、p-AMPK、VEGF蛋白表达水平显著降低(P<0.05),GFAT-1蛋白表达水平显著升高(P<0.05)。与模型组比较,电针组小鼠运动功能显著改善(P<0.05),脑梗死体积显著减小(P<0.05),脑血流灌注量显著增加(P<0.05),AMPK、p-AMPK、VEGF蛋白表达水平均显著升高(P<0.05),GFAT-1蛋白表达水平显著降低(P<0.05)。结论电针可能通过介导AMPK/GFAT-1/VEGF分子通路,参与改善脑皮质缺血所致脑血管损伤和运动功能障碍。

关键词：缺血性脑卒中电针腺苷酸活化蛋白激酶谷氨酰胺-6-磷酸果糖转氨酶-1 血管内皮生长因子

From proof-of-concept to exploitable

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Cybersecurity 2019年第1期2卷 189-213页

作者： Yan Wang WeiWu Chao Zhang xinyu xing Xiaorui Gong Wei Zou School of Cyber Security University of Chinese Academy of SciencesBeijingChina Institute for Network Sciences and Cyberspace Tsinghua UniversityBeijingChina College of Information Sciences and Technology Pennsylvania State UniversityUniversity ParkUnited States Institute of Information Engineering Chinese Academy of SciencesBeijingChina Key Laboratory of Network Assessment Technology CASBeijingChina Beijing Key Laboratory of Network Security and Protection Technology BeijingChina

Exploitability assessment of vulnerabilities is important for both defenders and *** ultimate way to assess the exploitability is crafting a working ***,it usually takes tremendous hours and significant manual *** address this issue,automated techniques can be *** solutions usually explore in depth the crashing paths,i.e.,paths taken by proof-of-concept(PoC)inputs triggering vulnerabilities,and assess exploitability by finding exploitable states along the ***,exploitable states do not always exist in crashing ***,existing solutions heavily rely on symbolic execution and are not scalable in path exploration and exploit *** this paper,we propose a novel solution to generate exploit for userspace programs or facilitate the process of crafting a kernel UAF ***,we utilize oriented fuzzing to explore diverging paths from vulnerability *** userspace programs,we adopt a control-flow stitching solution to stitch crashing paths and diverging paths together to generate *** kernel UAF,we leverage a lightweight symbolic execution to identify,analyze and evaluate the system calls valuable and useful for exploiting *** have developed a prototype system and evaluated it on a set of 19 CTF(capture the flag)programs and 15 realworld Linux kernel UAF *** results showed it could generate exploit for most of the userspace test set,and it could also facilitate security mitigation bypassing and exploitability evaluation for kernel test set.

关键词： Exploit Vulnerability Taint analysis Fuzzing Symbolic execution

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生物电化学技术在废水处理领域的研究

当代化工 2024年第2期53卷 464-467页

作者：邢心语谭向东王雪清程晓东中石化(大连)石油化工研究院有限公司工业废水无害化与资源化国家工程研究中心辽宁大连116045

简要介绍了生物电化学系统(BES)的原理和分类,归纳总结了各种操作参数包括电压、电极材料、操作和工艺条件对BES性能的影响。重点介绍了国内外学者利用该技术在废水处理领域的研究进展,并对BES在废水领域的未来发展趋势进行了展望。

关键词：生物电化学技术电极材料工艺参数工业废水

Selective photocatalytic oxidation of methane to C1 oxygenates by regulating sizes and facets over Au/ZnO

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Nano Research 2024年第5期17卷 3810-3818页

作者： Qiang Zhou xinyu Wang Xiaojie Tan Qinhua Zhang Hao Yang Tao xing Mingqing Wang Mingbo Wu Wenting Wu State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical Engineering&Institute of New EnergyChina University of Petroleum(East China)Qingdao 266580China National Engineering Research Center of Coal Gasification and Coal-Based Advanced Materials ShanDong Energy Group CO.LTDJinan 250101China

Photocatalytic oxidation of methane to value-added chemicals is a promising process under mild conditions,nevertheless confronting great challenges in efficiently activating C-H bonds and inhibiting ***,we propose a comprehensive strategy for the selective generation of reactive oxygen species(ROS)by regulating the sizes and facets of Au nanoparticles loaded on *** photocatalytic methane oxidation at ambient temperature,a high oxygenates yield of 36.4 mmol·g^(-1)·h^(-1) with a nearly 100%selectivity has been achieved over the optimized 1.0%Au/ZnO-9.6(1%Au with(111)facet and 9.6 nm size on ZnO)photocatalyst,exceeding most reported *** investigations reveal that 1.0%Au/ZnO-9.6 with the medium size and Au(111)facet guarantees the favourable formation of superoxide radicals(·OOH)through mild oxygen reduction,ultimately leading to excellent photocatalytic methane oxidation *** work provides some guidance for the delicate design of photocatalysts for efficient photocatalytic methane oxidation and oxygen utilization.

关键词： photocatalysis methane oxidation radical regulation oxygen activation nanomaterial

Unveiling optical anisotropy in disrupted symmetry WSe_(2)/SiP heterostructures

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Nano Research 2024年第9期17卷 8585-8591页

作者： Biqi Hu xing Xie xinyu Ouyang Junying Chen Shaofei Li Jun He Zongwen Liu Jian-Tao Wang Yanping Liu Institute of Quantum Physics School of PhysicsCentral South University932 South Lushan RoadChangsha 410083China State Key Laboratory of Precision Manufacturing for Extreme Service Performance Central South University932 South Lushan RoadChangsha 410083China School of Chemical and Biomolecular Engineering The University of SydneyNSW 2006Australia The University of Sydney Nano Institute The University of SydneyNSW 2006Australia Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials Laboratory Dongguan 523808China Shenzhen Research Institute of Central South University Shenzhen 518000China

Two-dimensional(2D)transition metal dichalcogenides(TMDs)have garnered considerable attention for their promising applications in sensors and optoelectronic devices,owing to their exceptional optical,electronic,and optoelectronic ***,the inherent high symmetry of TMD lattices imposes limitations on their functional ***,we present a strategy to disrupt the C_(3)rotational symmetry of monolayer WSe_(2)by fabricating a heterostructure incorporating WSe_(2)and SiP *** comprehensive experimental investigations and first-principle calculations,we elucidate that in the WSe_(2)/SiP heterostructure,excitons-both neutral and charged-emanating from WSe_(2)exhibit pronounced anisotropy,which remains robust against temperature ***,we observe an anisotropic ratio reaching up to 1.5,indicating a substantial degree of ***,we demonstrate the tunability of exciton anisotropy through the application of a magnetic field,resulting in a significant reduction in the anisotropic ratio with increasing field strength,from 1.57 to ***,the change in heterojunction anisotropy ratio reaches 24.8%as the magnetic field *** findings elucidate that the perturbation of the C_(3)rotational symmetry of the WSe_(2)monolayer arises from a non-uniform charge density distribution within the layer,exhibiting mirror *** results underscore the potential of heterostructure engineering in tailoring the properties of isotropic materials and provide a promising avenue for advancing the application of anisotropic devices across various fields.

关键词： symmetry breaking heterostructure engineering anisotropy optical spectroscopy

A universal performance-enhancing method for Li-S batteries:the cathode material of Li_(2)S@Li_(2)S_(2)@Li_(2)S_(6) double-shell structure

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Science China Chemistry 2024年第4期67卷 1229-1241页

作者： Shunjin Yang Yujiang Sun Qiaran Zhang Xiaohu Hu xing Chen Guoran Li Xiao Sun Yuzhe Zhang Shijie Xu xinyu Wang Yongan Yang Institute of Molecular Plus School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China College of Materials Science and Engineering Nankai UniversityTianjin 300350China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage Tianjin 300072China

Lithium sulfide(Li_(2)S)as a cathode material for lithium-sulfur(Li-S)batteries,one of the most promising advanced batteries in the future,has received tremendous attention in the past ***,developing the practical Li_(2)S cathode confronts challenges of low conductivity for Li-ions and electrons,high sensitivity to environmental moisture,big overpotential barrier to electrochemical activation,and poor cyclability due to the shuttle effect of intermediate *** article herein reports a simple and effective strategy for making Li_(2)S@Li_(2)S_(2)@Li_(2)S_(6) double-shelled microparticles,which can significantly mitigate these *** are synthesized by dissolving Li2S together with S in dimethoxyethane,then drying off the solvent,and finally calcining the collected *** with pure Li_(2)S,such a double-shell material presents a 26.7% improvement in cycling capacity,0.5 V lower in activation overpotential,and prolonged tolerance in the ambient *** density functional theory calculation shows that the performance enhancement lies in the higher stability of Li2S6in contact with moisture and some autocatalytic effect of Li_(2)S_(2)@Li_(2)S_(6).Such a double-shell structure becomes a universal performanceenhancing approach when being combined with other means,such as cathodes composited with catalytic MoS_(2),separators modified with selenium-doped sulfurized-polyacrylonitrile/montmorillonite,electrolytes containing fluorenone additive,and Li anodes coated with a layer of Li_(3)*** corresponding capacity retention shows up to 80%improvement compared with pure Li_(2)S.

关键词： lithium-sulfur batteries lithium sulfide lithium polysulfides cathode performance double shell structure

RAD51B-AS1 promotes the malignant biological behavior of ovarian cancer through upregulation of RAD51B

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第7期25卷 581-593页

作者： Xinyi WEI Conghui WANG Sangsang TANG Qian YANG Zhangjin SHEN Jiawei ZHU Xiaodong CHENG xinyu WANG xing XIE Junfen XU Weiguo LU Women's Reproductive Health Laboratory of Zhejiang Province Women�s HospitalZhejiang University School of MedicineHangzhou 310006China Department of Gynecologic Oncology Women�s HospitalZhejiang University School of MedicineHangzhou 310006China Cancer Center Zhejiang UniversityHangzhou 310058China Department of Obstetrics and Gynecology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology Hangzhou 310006China

Long non-coding RNAs(lncRNAs)play an indispensable role in the occurrence and development of ovarian cancer(OC).However,the potential involvement of lncRNAs in the progression of OC is largely *** investigate the detailed roles and mechanisms of RAD51 homolog B-antisense 1(RAD51B-AS1),a novel lncRNA in OC,reverse transcription-quantitative polymerase chain reaction(RT-qPCR)was performed to verify the expression of *** proliferation,metastasis,and apoptosis were detected using the cell counting kit-8(CCK-8),colony-formation,transwell,and flow cytometry *** xenograft models were established for the detection of *** results revealed that RAD51B-AS1 was significantly upregulated in a highly metastatic human OC cell line and OC ***51B-AS1 significantly increased the proliferation and metastasis of OC cells and enhanced their resistance to *** prediction analysis revealed that the only target gene of RAD51B-AS1 was *** gene function experiments revealed that RAD51B exerts the same biological effects as *** experiments demonstrated that the malignant biological behaviors promoted by RAD51B-AS1 overexpression were partially or completely reversed by RAD51B silencing in vitro and in ***,RAD51B-AS1 promotes the malignant biological behaviors of OC and activates the protein kinase B(Akt)/B cell lymphoma protein-2(Bcl-2)signaling pathway,and these effects may be associated with the positive regulation of RAD51B ***51B-AS1 is expected to serve as a novel molecular biomarker for the diagnosis and prediction of poor prognosis in OC,and as a potential therapeutic target for disease management.

关键词： Ovarian cancer(OC) Long non-coding RNA(LncRNA) Metastasis Anoikis

Betulinic acid protects against ovarian impairment by decreasing F-2 toxin-induced oxidative stress and inflammation associated with the downregulation of p38 expression in mice

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Food Science and Human Wellness 2024年第3期13卷 1292-1302页

作者： Li Kong xinyu Gao Lijuan Zhu xing Lin You Huang Chunlin Huang Wenjiang Yang Yazhi Chen Haoqiang Zhao Jing Wu Zhihang Yuan Jin’e Yi Hunan Engineering Research Center of Livestock and Poultry Health Care College of Veterinary MedicineHunan Agricultural UniversityChangsha 410128China

F-2 toxin is an estrogenic mycotoxin that causes reproductive disorders in *** acid(BA)is a natural pentacyclic lupane-structure triterpenoid that has diverse pharmacological *** this study,the antioxidative and anti-inflammatory effects of BA and its underlying mechanism are explored in F-2 toxin-triggered mouse ovarian *** found that BA alleviated the F-2 toxin-induced ovarian impairment by stimulating follicle growth,reducing inflammatory cell infiltration,repairing damaged mitochondria and endoplasmic ***,BA not only reversed F-2 toxin-induced reduction of follicle stimulating hormone(FSH)and luteinizing hormone(LH)levels in the serum,but also restrained the protein expression of the estrogen receptors a(ERa)and ERβ.Moreover,BA restored the balance of F-2 toxin-induced ovarian redox system ***,we found that 0.25 mg/kg BA played an anti-inflammatory role in the F-2 toxin-induced ovarian impairment by decreasing interleukin-1β(IL-1β).IL-6,and tumor necrosis factor-α(TNF-α)mRNA expression,as well as inhibiting p38 protein *** data demonstrated that BA exerts its protective effect on F-2 toxin-induced ovarian oxidative impairment and inflammation by inhibiting p38 expression,which implies a natural product-based medicine to ameliorate F-2 toxin-caused female reproductive toxicity and provides a detoxifying method for food contaminated by mycotoxin.

关键词： Betulinic acid F-2 toxin Ovarian damage p38 MAPK signaling pathway