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A Model for Detecting Fake News by Integrating Domain-Specific Emotional and Semantic Features

Computers, Materials & Continua 2024年第8期80卷 2161-2179页

作者： wen Jiang Mingshu zhang Xu’an Wang Wei bin Xiong zhang Kelan Ren Facheng Yan College of Cryptography Engineering Engineering University of People’s Armed PoliceXi’an710086China Key Laboratory of Network and Information Security Engineering University of People’s Armed PoliceXi’an710086China Key Laboratory of CTC&Information Engineering Engineering University of People’s Armed PoliceMinistry of EducationXi’an710086China

With the rapid spread of Internet information and the spread of fake news,the detection of fake news becomes more and more *** detection methods often rely on a single emotional or semantic feature to identify fake news,but these methods have limitations when dealing with news in specific *** order to solve the problem of weak feature correlation between data from different domains,a model for detecting fake news by integrating domain-specific emotional and semantic features is *** method makes full use of the attention mechanism,grasps the correlation between different features,and effectively improves the effect of feature *** algorithm first extracts the semantic features of news text through the Bi-LSTM(Bidirectional Long Short-Term Memory)layer to capture the contextual relevance of news ***-BiLSTM is then used to extract emotional features and predict the probability of positive and negative emotions in the *** then uses domain features as an enhancement feature and attention mechanism to fully capture more fine-grained emotional features associated with that ***,the fusion features are taken as the input of the fake news detection classifier,combined with the multi-task representation of information,and the MLP and Softmax functions are used for *** experimental results show that on the Chinese dataset Weibo21,the F1 value of this model is 0.958,4.9% higher than that of the sub-optimal model;on the English dataset FakeNewsNet,the F1 value of the detection result of this model is 0.845,1.8% higher than that of the sub-optimal model,which is advanced and feasible.

关键词： Fake news detection domain-related emotional features semantic features feature fusion

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The centrosymmetric to non-centrosymmetric transformation induced by alkaline-earth cations producing infrared nonlinear optical AeMn_(6)Ga_(6)S_(16)(Ae=Ca,Sr)

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Science China Chemistry 2024年第9期67卷 2941-2948页

作者： Yang-Ping zhang Shao-Min Pei wen-Fa Chen bin-wen Liu Xiao-Ming Jiang Guo-Cong Guo State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China School of Physical Science and Technology Shanghai Tech UniversityShanghai 201210China

Non-centrosymmetric(NCS)structure is an indispensable prerequisite for second-order nonlinear optical(NLO)***,the mainstream approach for designing new NCS structures still relies on chemical substitution,necessitating an urgent infusion of fresh *** this work,two isomorphic sulfides AeMn_(6)Ga_(6)S_(16)(Ae=Ca,1;Sr,2)are afforded by modifying the skeleton of centrosymmetric(CS)Mn_(2)Ga_(2)S_(5) via introducing strong electropositive alkaline-earth ***,the incorporation of Ca^(2+)/Sr^(2+)cations allows the elementary[MnGaS_(9)]_(∞)chains to reconfigure into bumpy[MnS_(6)]-[GaS_(4)]layers in a new engagement manner,thus enabling the conversion from CS to NCS *** modifications cause not only strong second-harmonic generation(SHG)responses(~1.5×benchmark AgGaS_(2)@1,700 nm),but also significantly feasible bandgaps(2.60-2.64 e V)compared to the sulfide Mn_(2)Ga_(2)S_(5)(1.36 e V),which ultimately facilitate ultrahigh laser-induced damage thresholds(4.4-6.6×AgGaS_(2)@1,064 nm for compounds 1 and 2).The present study offers an ingenious approach for the transformation of CS to NCS structure.

关键词： second-harmonic generation non-centrosymmetrical structure NLO functional motif solid-state method

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基于病案首页数据的四川省2015—2020年恶性肿瘤发病时间趋势分析

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现代预防医学 2024年第10期51卷 1736-1741+1786页

作者：刘潇霞蔡红霞乔良张文彬李丽娜马婧钟志刚罗玉英四川省肿瘤医院研究所四川省癌症防治中心电子科技大学附属肿瘤医院四川省肿瘤临床医学研究中心四川省癌症防治中心办公室(预防部) 成都市第七人民医院医疗质量管理部四川省卫生健康信息中心

目的分析2015—2020年四川省恶性肿瘤发病趋势，为制定肿瘤防控规划和措施提供数据参考。方法基于四川省2015—2020年全省居民住院病历病案首页肿瘤相关的个案信息数据，计算发病率，使用Joinpoint 4.***.0.1计算平均年度变化百分比。结... 详细信息

目的分析2015—2020年四川省恶性肿瘤发病趋势，为制定肿瘤防控规划和措施提供数据参考。方法基于四川省2015—2020年全省居民住院病历病案首页肿瘤相关的个案信息数据，计算发病率，使用Joinpoint 4.***.0.1计算平均年度变化百分比。结果 2015—2020年间，四川省恶性肿瘤新发病例数从181 490例增加到276 770例，发病率从198.57/10～5上升到304.76/10～5,平均年度变化百分比(AAPC)分别为总体7.514%、男性6.751%、女性8.611%、城市4.713%、农村6.838%;成都平原经济区和川西北生态经济区恶性肿瘤发病上升趋势明显，AAPC值分别为7.549%、9.668%。2015—2020年四川省肺癌、结直肠癌、乳腺癌、宫颈癌和前列腺癌发病率均呈明显的上升变化趋势，AAPC值分别为11.220%(95%CI:5.866～16.845)、6.606%(95%CI:1.395～13.202)、6.322%(95%CI:1.411～11.472)、5.765%(95%CI:1.431～10.284)、13.222%(95%CI:7.396～19.364),差异均有统计学意义。结论四川省恶性肿瘤发病率随时间呈上升变化趋势，防控形势严峻。不同恶性肿瘤发病率变化趋势存在差异，肺癌、消化系统肿瘤、乳腺癌、宫颈癌和前列腺癌是四川省发病居前位的癌种，应增强特异性预防控制与筛查。

关键词：恶性肿瘤发病率时间趋势病案首页

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Toward Selective Synthesis of Protein Olympiadanes via Orthogonal Active Templates in One Step

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CCS Chemistry 2024年第4期6卷 1047-1059页

作者： Fan zhang Yajie Liu Xiao-Di Da wen-bin zhang Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationCenter for Soft Matter Science and EngineeringCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing100871 Beijing Academy of Artificial Intelligence Beijing 100084

Unlike small molecules,the topological complexity of macromolecules remains largely unexplored due to the huge synthetic ***,we report the development of orthogonal active templates for concise and selective synthesis of protein[n]heterocatenanes toward protein *** active template(AT-Snoop)was first developed based on the isopeptide-bond-forming RrgA domain with comparable efficiency and excellent orthogonality to the previously reported active template(AT-Spy)based on the CnaB2 *** combination facilitated the selective synthesis of protein[n]catenanes from multiple components in one step and the resulting structures were verified by sodium dodecyl sulfate-polyacrylamide gel electrophoresis,size exclusion chromatography,liquid chromatography-mass spectrometry,and proteolytic digestion *** results offered a promising solution to tackling the daunting challenge of precision synthesis of protein olympiadane with five distinct ring *** only did the success provide new tools for proteintopology engin eering but alsospurred and fueled the future exploitation of topology-related functional benefits in protein science.

关键词： catenane topology active template SnoopTag SnoopCatcher SpyTag SpyCatcher

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响应面法优化煤沥青基多孔电容炭的制备工艺

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炭素技术 2024年第2期43卷 49-54页

作者：岳莉王伯琪单衍雪张文斌赖仕全朱亚明程均霞赵雪飞辽宁科技大学化学工程学院辽宁鞍山114051

煤沥青是制备超级电容器炭电极材料的优选前驱体。通过KOH活化从鞍钢中温煤沥青(AGCTP)制备多孔电容炭。在考察炭化温度、活化温度、碱炭比、活化时间、酸洗剂种类等单因素对比电容影响的基础上,通过Box-Behnken响应面法优化分析得到了... 详细信息

煤沥青是制备超级电容器炭电极材料的优选前驱体。通过KOH活化从鞍钢中温煤沥青(AGCTP)制备多孔电容炭。在考察炭化温度、活化温度、碱炭比、活化时间、酸洗剂种类等单因素对比电容影响的基础上,通过Box-Behnken响应面法优化分析得到了活化工艺条件与比容量间的二次回归模型。结果表明,原料沥青制备的多孔炭容量最大,而盐酸洗涤效果最佳。活化条件对比容量均有显著影响,得到的最优工艺条件:活化温度680℃、碱炭比2.4、活化时间2 h,在此条件所制电容炭在0.5 A/g电流密度下的比容量达418 F/g,与模型预测值基本吻合,且具有优异的倍率性和较小的电荷转移阻抗(0.17Ω)和内阻(0.72Ω)。

关键词：超级电容器煤沥青电容炭响应面工艺优化

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Periodic Variation Studies of the Two Short Period W UMa-type Eclipsing binaries: LX Lyn and V0853 Aur

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Research in Astronomy and Astrophysics 2024年第1期24卷 273-284页

作者： Xu zhang bin zhang School of Physics and Electronic Science Guizhou Normal UniversityGuiyang 550001China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal UniversityGuiyang 550025China

In this paper,new light curves(LCs) of contact eclipsing binary(CEB) systems LX Lyn and V0853 Aur are presented and analyzed by using the 2015 version of the Wilson-Devinney(W-D) *** order to explain their asymmetric LCs,cool starspots on the components were *** is suggested that their fill-out degrees are f=12.0%(LX Lyn) and f=26.3%(V0853 Aur).At the same time,we found that LX Lyn is a W-type eclipsing binary(EB) with an orbital inclination of i=84°.88 and a mass ratio of q=2.31.V0853 Aur is also a W-type CEB with a mass ratio of q=2.77 and an orbital inclination of i= 79°.*** on all available times of light minimum,their orbital period changes are studied by using the O-C *** O-C diagram of LX Lyn reveals a cyclic oscillation with a period of about 14.84 yr and an amplitude of 0.0019 days,which can be explained by the light-travel time effect(LTTE) due to the presence of a third body with a minimum mass of0.06M_⊙.For V0853 Aur,it is discovered that the O-C diagram of the system also shows a cyclic oscillation with a period of 9.64 yr and an amplitude of 0.03365 *** cyclic oscillation of V0853 Aur can be attributed to the LTTE by means of a third body with a mass no less than 3.77M_⊙.The third body may play an important role in the formation and evolution of these systems.

关键词： stars:activity (stars:)binaries(including multiple):close (stars:)binaries:eclipsing (stars:)brown dwarfs stars:evolution stars:formation

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营养健康食堂建设问题和模式分析:以中国两地试点为例

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中国食物与营养 2024年第2期30卷 14-17页

作者：冯靖雯刘爱玲宫伟彦袁帆仇玉洁张文彬丁彩翠中国疾病预防控制中心营养与健康所北京100050

目的:对照《营养健康食堂建设指南》要求,深入挖掘营养健康食堂试点建设中存在的问题,探索有效建设模式。方法:2021—2022年全程随访浙江省台州市4所学校、北京市海淀区8家单位和7所学校的营养健康食堂试点建设,采用问卷调查用餐人员130... 详细信息

目的:对照《营养健康食堂建设指南》要求,深入挖掘营养健康食堂试点建设中存在的问题,探索有效建设模式。方法:2021—2022年全程随访浙江省台州市4所学校、北京市海淀区8家单位和7所学校的营养健康食堂试点建设,采用问卷调查用餐人员1300人、食堂工作人员800人,收集食材及盐油糖人均消耗量变化,定期访谈相关人员。结果:食堂试点建设过程中存在的问题主要有营养标识未覆盖所有菜品、营养健康角利用率低、人员或资金保障不到位、缺乏专业人员、自制宣传材料存在科学问题、宣传活动形式单一、营养健康菜品烹饪及供应有待改善等。营养健康食堂有效建设模式应包括宣贯细化落实、政府统筹全局、专家全程参与、灵活运用科技、配备专业人员、完善食堂环境、开展针对性活动,以及关注过程和效果评估。结论:我国营养健康食堂建设初见成效,但在科学性、整体性、长期性等方面仍存在问题,营养与健康仍是今后食堂建设需要遵循的关键主题和方向。

关键词：营养健康食堂单位食堂学校食堂问题模式

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Reducing Operation Emissions and Improving Work Efficiency Using a Pure Electric Wheel Drive Tractor

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Engineering 2024年第6期37卷 230-245页

作者： Chang-Kai wen wen Ren Qing-Zhen Zhu Chun-Jiang Zhao Zhen-Hao Luo Sheng-Li zhang bin Xie Zhi-Jun Meng Research Center of Intelligent Equipment Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China State Key Laboratory of Intelligent Agricultural Power Equipment Beijing 100097China BYD Company Limited Shenzhen 518118China College of Agricultural Engineering Jiangsu UniversityZhenjiang 212013China College of Engineering China Agricultural UniversityBeijing 100083China

In response to the problems of excessive greenhouse-gas and particulate emissions and the low traction efficiency of conventional diesel tractors in the field,a purely electric wheel-side drive tractor was studied,including an electric motor drive system,a battery ballast system,and an electro–hydraulic suspension *** paper develops a dynamics model of an electric tractor-ploughing unit under complex soil conditions,leading to the proposal of an active control method for drive wheel torque and a joint control method for the traction force of the suspension system and the front-and rear-axle loads of a ***,the tractor is prototyped and assembled,and ploughing tests are carried *** ploughing results show that the active torque-distribution control method proposed in this study reduces the tractor slip by 14.83%and increases the traction efficiency by 10.28%compared with the average torquedistribution *** with the conventional traction control mode,the joint control method for traction and ballast proposed in this paper results in a 3.7%increase in traction efficiency,a 15.05%decrease in slip,and a 4.9%reduction in total drive motor energy *** study will help to improve the operation quality and traction efficiency of electric tractors in complex soil conditions.

关键词： Electric tractor Ploughing unit Torque distribution Active ballast Traction performance

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云南两县儿童生长发育及营养状况研究

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中国食物与营养 2024年第6期30卷 76-80页

作者：张文彬张妍宫伟彦丁彩翠宋超仇玉洁杨博刘爱玲中国疾病预防控制中心营养与健康所北京100050 中国学生营养与健康促进会北京100031

目的:了解云南省1~3年级儿童生长发育情况及微量营养素缺乏情况,为提高云南地区学生营养状况提供依据。方法:采用随机整群抽样方法选取云南省两县12所小学共计1126名1~3年级儿童,测量身高、体重并计算BMI。采集478名儿童的空腹静脉血,... 详细信息

目的:了解云南省1~3年级儿童生长发育情况及微量营养素缺乏情况,为提高云南地区学生营养状况提供依据。方法:采用随机整群抽样方法选取云南省两县12所小学共计1126名1~3年级儿童,测量身高、体重并计算BMI。采集478名儿童的空腹静脉血,检测血红蛋白水平以及血清维生素A和维生素D,并分析缺乏情况。结果:云南两县儿童生长迟缓率为2.3%,拉祜族儿童生长迟缓率高于汉族;轻度消瘦率为7.6%、中重度消瘦率为6.9%;超重率5.7%、肥胖率5.3%;男童超重率高于女童。儿童血清维生素A水平为0.41(0.37~0.47)μg/mL,维生素A边缘缺乏率5.9%,呈现随年龄升高而降低的趋势。儿童维生素D水平为(26.47±6.45)ng/mL,维生素D缺乏率0.8%,维生素D不足率13.8%,男童维生素D异常率低于女童,维生素D异常率呈现随年龄增加而升高的趋势,傣族低于汉族和彝族,拉祜族低于彝族。血红蛋白水平为143(137~148)g/L,仅有1例贫血,女童血红蛋白水平高于男童,并呈现随年龄增加而增加的趋势。结论:云南地区儿童生长发育和微量营养素状况仍需进一步改善,同时需预防超重肥胖的快速增长。

关键词：儿童生长发育维生素A 维生素D

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Evaluation of dry eye disease symptomatology and mental health status among patients with different COVID-19 statuses

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International Journal of Ophthalmology(English edition) 2024年第5期17卷 822-830页

作者： Fang Ruan wen-Jun Kong Qian Fan Hong-Wei Dong Wei zhang wen-bin Wei Ying Jie Department of Ophthalmology Beijing You’an HospitalCapital Medical UniversityBeijing Infectious Eye Disease Diagnosis and Treatment CenterBeijing 100069China Beijing Tongren Eye Center Beijing Tongren HospitalCapital Medical UniversityBeijing Institute of OphthalmologyBeijing Ophthalmology and Visual Sciences Key LabBeijing 100730China Tianjin Eye Hospital Tianjin Key Lab of Ophthalmology and Visual ScienceTianjin Eye InstituteNankai University Affiliated Eye HospitalNankai University Eye InstituteNankai UniversityClinical College of OphthalmologyTianjin Medical UniversityTianjin 300020China

AIM:To evaluate dry eye disease(DED)symptomatology and mental health status in different COVID-19 ***:A cross-sectional observational design was *** 123 eligible adults(46.34%of men,age range,18-59y)with COVID-19 included in the study from August to November,*** Surface Disease Index(OSDI),Five-item Dry Eye Questionnaire(DEQ-5),Hospital Anxiety and Depression Scale(HADS),and Pittsburgh Sleep Quality Index(PSQI)were used in this ***:OSDI scores were 6.82(1.25,15.91)in asymptomatic carriers,7.35(2.50,18.38)in mild cases,and 16.67(4.43,28.04)in recurrent cases,with 30.00%,35.56%,and 57.89%,respectively evaluated as having DED symptoms(χ2=7.049,P=0.029).DEQ-5 score varied from 2.00(0,6.00)in asymptomatic carriers,3.00(0,8.00)in mild cases,and 8.00(5.00,10.00)in recurrent cases,with 27.50%,33.33%,and 55.26%,respectively assessed as having DED symptoms(χ2=8.532,P=0.014).The prevalence of clinical anxiety(50.00%)and depression(47.37%)symptoms were also significantly higher in patients with recurrent infection(χ2=24.541,P<0.001;χ2=30.871,P<0.001).Recurrent infection was a risk factor for high OSDI scores[odds ratio,2.562;95%confidence interval(CI),1.631-7.979;P=0.033]and DEQ-5 scores(odds ratio,3.353;95%CI,1.038-8.834;P=0.043),whereas having a fixed occupation was a protective factor for OSDI scores(odds ratio,0.088;95%CI,0.022-0.360;P=0.001)and DEQ-5 scores(odds ratio,0.126;95%CI,0.039-0.405;P=0.001).CONCLUSION:Patients with recurrent COVID-19 have more severe symptoms of DED,anxiety,and depression.

关键词： COVID-19 dry eye disease recurrent infection mental health

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