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面向城市结构形态的地图认知负荷差异眼动试验研究

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测绘通报 2024年第3期 101-106页

作者：黎雪儿郑束蕾信息工程大学河南郑州450001

在空间认知领域,随着技术的进步,地图出现了三维地图、影像地图、虚拟地图等新的形式,同时带来了地图认知适用性不清、认知负荷差异缺乏量化的问题。本文针对面向城市结构形态认知问题,以二维地图、三维地图、影像地图、航拍地图图片为... 详细信息

在空间认知领域,随着技术的进步,地图出现了三维地图、影像地图、虚拟地图等新的形式,同时带来了地图认知适用性不清、认知负荷差异缺乏量化的问题。本文针对面向城市结构形态认知问题,以二维地图、三维地图、影像地图、航拍地图图片为例,采用问卷调查、眼动试验和量表分析相结合的方法,研究不同类型地图的认知作用,同时关注其中的性别差异。结果显示,地图类型与性别两个变量均对地图认知负荷产生一定影响,组间差异显著;二维地图适用性较好,男性认知负荷与认知效果高于女性。

关键词：空间认知地图眼动试验认知负荷城市结构

Solvent extraction of scandium from leaching solution of red mud roasted with ammonium sulfate using D2EHPA/TBP

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Journal of Rare Earths 2024年第10期42卷 1943-1949页

作者： Fucheng li Xinsheng li Lei Shi Xiang li Duoqiang liang Yuezhou Wei Toyohisa Fujita School of Resources Environment and MaterialsGuangxi UniversityNanning530004China State Key Laboratory of Featured Metal Materiais and life-for Composite Structures Guangxi UniversityNanning530004China School of Nuclear Science and Technology University of South ChinaHengyang421001China

Red mud is an important secondary resource for scandium *** red mud leaching solution containing scandium in this study was derived from environmentally friendly ammonium sulfate roasting and water leaching process.A synergistic extraction with a mixture of di(2-ethylhexyl)phosphate acid(D2EHPA)and tributyl phosphate(TBP)for recovery of scandium from red mud leaching solution is *** effects of D2EHPA concentration,H_(2)SO_(4.concentration,rare earth elements,dosage of TBP,phase ratio(A/O),contact time and H_(2)O_(2)concentration on scandium extraction were *** results show that more than 99%scandium is extracted under the optimal conditions while Fe,Al,Ti,Ca and rare earth elements(Ce,Y,La,Nd,er,etc.)are hardly *** stripping efficiency of Sc reaches above 92.37%under the optimal stripping conditions of 5 mol/L NaOH with an A/O of 1 at 90℃for 30 *** proposed technology could provide an effective method for extraction of scandium from red mud leaching solution.

关键词： Scandium Red mud leaching solution D2EHPA/TBP Solvent extraction Rare earths

基于属性散射中心卷积核调制的SAR目标识别深层网络

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雷达学报（中英文） 2024年第2期13卷 443-456页

作者：李毅杜兰周可儿杜宇昂西安电子科技大学雷达信号处理全国重点实验室西安710071

卷积神经网络(CNN)的特征提取能力与其参数量有关,一般来说,参数量越多,CNN的特征提取能力越强。但要学好这些参数需要大量的训练数据,而在实际应用中,可用于模型训练的合成孔径雷达(SAR)图像往往是有限的。减少CNN的参数量可以降低对... 详细信息

卷积神经网络(CNN)的特征提取能力与其参数量有关,一般来说,参数量越多,CNN的特征提取能力越强。但要学好这些参数需要大量的训练数据,而在实际应用中,可用于模型训练的合成孔径雷达(SAR)图像往往是有限的。减少CNN的参数量可以降低对训练样本的需求,但同时也会降低CNN的特征表达能力,影响其目标识别性能。针对此问题,该文提出一种基于属性散射中心(ASC)卷积核调制的SAR目标识别深层网络。由于SAR图像具有电磁散射特性,为了提取更符合SAR目标特性的散射结构和边缘特征,所提网络使用预先设定的具有不同指向和长度的ASC核对少量CNN卷积核进行调制以生成更多卷积核,从而在降低网络参数量的同时保证其特征提取能力。此外,该网络在浅层使用ASC调制卷积核来提取更符合SAR图像特性的散射结构和边缘特征,而在高层使用CNN卷积核来提取SAR图像的语义特征。由于同时使用ASC调制卷积核和CNN卷积核,该网络能够兼顾SAR目标的电磁散射特性和CNN的特征提取优势。使用实测SAR图像进行的实验证明了所提网络可以在降低对训练样本需求的同时保证优秀的SAR目标识别性能。

关键词：合成孔径雷达(SAR) 目标识别卷积神经网络(CNN) 属性散射中心(ASC) 卷积核调制

教育强国建设进程中教师队伍建设的战略与路径——习近平总书记关于教师的重要论述的逻辑与理论体系

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民族教育研究 2024年第2期35卷 43-51页

作者：薛二勇李健北京师范大学中国教育政策研究院北京100875 北京师范大学国际与比较教育研究院北京100875

教师队伍建设是教育强国建设的基础性和战略性支撑。围绕什么是好老师、如何认识教师、采用什么方法、通过什么路径建设教师队伍的问题,习近平总书记提出了一系列新观点新思想,构成了新时代建设高素养专业化创新型教师队伍的战略思路和... 详细信息

教师队伍建设是教育强国建设的基础性和战略性支撑。围绕什么是好老师、如何认识教师、采用什么方法、通过什么路径建设教师队伍的问题,习近平总书记提出了一系列新观点新思想,构成了新时代建设高素养专业化创新型教师队伍的战略思路和实践遵循。本体论上,从教师本身角度,教师要做“四有好老师”;从学生发展角度,教师要做“四个引路人”;从品质提升角度,教师要具备“教育家精神”。认识论上,教师作为立教之本、兴教之源,要做到经师和人师的统一,是“中国梦”得以实现的“筑梦人”与“大先生”。方法论上,坚持把师德师风作为教师第一标准、教师首先要明道信道、以“四个统一”协同育人、加强思想政治教师队伍建设。实践论上,教育优先发展中优先建设教师队伍、教师队伍建设中优先建设乡村教师、提高教师职业待遇、在教师群体中加强党的组织建设。

关键词：习近平总书记教育强国教师队伍教育思想教育战略

Effect and Safety of Herbal Medicine Foot Baths in Patients with Diabetic Peripheral Neuropathy:A Multicenter Double-Blind Randomized Controlled Trial

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Chinese Journal of Integrative Medicine 2024年第3期30卷 195-202页

作者： HUANG Hao-yue liN Yu-ping WEI Hua FU Yu ZHOU Yue-hong FANG Zhao-hui QIU Xiao-tang WANG Mei li Qing-bo li Shan-shan WANG Shi-dong DAI Fang liU Zhen-jie ZHAO ling WEN Jian-xuan WU li-yan ZENG Hui-yan ZHANG Jin-ming LU Qi-yun HE liu SONG Wei SUN Lu LUO Lu-lu HE Jia-li XIE Wen-wen liANG Qing-shun HUANG Yuan ZHU Sheng-ling LONG Jie-er GAO Zhi-juan WEN Ze-huai li Chun-ji OUYANG Wen-wei li Geng WU Ming-hui li An-xiang HUANG Jin-zhu Sanjoy K Paul TANG Xian-yu FAN Guan-jie Department of Endocrinology Guangdong Provincial Hospital of Chinese MedicineGuangzhou510120China The Second Clinical College of Guangzhou University of Chinese Medicine Guangzhou510120China Department of Endocrinology The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou510120China Guangdong Provincial Academy of Chinese Medical Sciences Guangzhou510120China Department of Endocrinology The First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China Department of Endocrinology Liuyang Hospital of Chinese MedicineChangsha410000China Department of Endocrinology The First Affiliated Hospital of Anhui University of Chinese MedicineHefei230000China Department of Endocrinology Hainan Provincial Hospital of Traditional Chinese MedicineHaikou570100China Department of Endocrinology The Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang110000China Department of Geriatric Luoyang No.1 Hospital of Traditional Chinese MedicineLuoyangHenan Province471000China Department of Endocrinology The Second Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Department of Endocrinology Beijing University of Chinese Medicine Affiliated Dongzhimen HospitalBeijing100000China Department of Endocrinology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Melbourne EpiCentre The University of Melbourne and Melbourne HealthMelbourne3013Australia

Objective:To evaluate the effect and safety of foot baths with Tangbi Waixi Decoction(TW)in treating patients with diabetic peripheral neuropathy(DPN).Methods:It is a multicenter double-blinded randomized controlled *** with DPN were recruited between November 18,2016 and May 30,2018 from 8 hospitals in *** patients received basic treatments for glycemic *** received foot baths with TW herbal granules either 66.9 g(intervention group)or 6.69 g(control group)for 30 min once a day for 2 weeks and followed by a 2-week rest,as a therapeutic *** the Toronto Clinical Scoring System total score(TCSS-TS)6 points,the patients received a total of 3 therapeutic courses(for 12 weeks)and were followed up for 12 *** primary outcome was change in TCSS-TS score at 12 and 24.*** outcomes included changes in bilateral motor nerve conduction velocity(MNCV)and sensory nerve conduction velocity(SNCV)of the median and common peroneal *** was also ***:Totally 632 patients were enrolled,and 317 and 315 were randomized to the intervention and control groups,*** the 12-week intervention,patients in both groups showed significant declines in TCSSTS scores,and significant increases in MNCV and SNCV of the median and common peroneal nerves compared with pre-treatment(Perve at 24.weeks in the control group were greater than those in the intervention group(Per of adverse events did not differ significantly between groups(P>0.05),and no serious adverse event was related with ***:Treatment of TW foot baths was safe and significantly benefitted patients with DPN.A low dose of TW appeared to be more effective than a high dose.(Registry *** CTR-IOR-16009331)

关键词： diabetic peripheral neuropathy herbal medicine foot baths Chinese medicine randomized controlled trial Tangbi Waixi Decoction

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社保缴费率下调与企业全要素生产率

中国经济问题 2024年第1期 77-91页

作者：楚尔鸣李心雅李逸飞湘潭大学商学院广东金融学院金融与投资学院管理世界杂志社

本文以2012年浙江省企业养老保险缴费率下调这一准自然实验为基础,利用双重差分法对该事件的影响进行了实证分析。研究发现,社保缴费率的下调显著提升了企业全要素生产率,且该结果通过了多项稳健性检验。同时,机制检验表明这一过程主要... 详细信息

本文以2012年浙江省企业养老保险缴费率下调这一准自然实验为基础,利用双重差分法对该事件的影响进行了实证分析。研究发现,社保缴费率的下调显著提升了企业全要素生产率,且该结果通过了多项稳健性检验。同时,机制检验表明这一过程主要通过优化企业人力资本结构、优化员工薪酬结构、提升企业固定资产投资和研发投入来实现。此外,我们通过异质性分析发现,这种提升效应对于民营企业、大规模企业以及制造业企业更为显著。这意味着政府的减税降费政策不仅可以提升企业产出,对于保民生、促消费、稳就业、助力企业转型升级也具有一定的积极作用。

关键词：社保缴费率减税降费全要素生产率

Characteristic and optimization of ferrite-rich sulfoaluminate-based composite cement suitable for cold region tunnels

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Journal of Central South University 2024年第8期31卷 2794-2809页

作者： PENG You li li TAN Xian-jun QIU Xin ZHENG Pei-chao XIE Jun CHEN Wei-zhong REZIWANGUli Sha-ta-er School of Infrastructure Engineering Dalian University of TechnologyDalian 116024China Institute of Rock and Soil Mechanics Chinese Academy of SciencesWuhan 430071China Xinjiang Academy of Transportation Sciences Co. Ltd.Urumqi 830000China

To develop suitable grouting materials for water conveyance tunnels in cold regions,firstly,this study investigated the performance evolution of ferrite-rich sulfoaluminate-based composite cement(FSAC grouting material)at 20 and 3℃.The results show that low temperature only delays the strength development of FSAC grouting material within the first 3 ***,the effect of four typical early strength synergists on the early properties of FSAC grouting material was evaluated to optimize the early(£1 d)strength at 3℃.The most effective synergist,Ca(HCOO)_(2),which enhances the low-temperature early strength without compromising fluidity was selected based on strength and fluidity *** micro-mechanism was analyzed by XRD,TG,and SEM *** results reveal that the most suitable dosage range is 0.3 wt%−0.5 wt%.Proper addition of Ca(HCOO)_(2)changed the crystal morphology of the hydration products,decreased the pore size and formed more compact hydration products by interlocking and ***,excessive addition of Ca(HCOO)_(2)inhibited the hydration reaction,resulting in a simple and loose structure of the hydration *** research results have reference value for controlling surrounding rock deformation and preventing water and mud inrushes during the excavation in cold region tunnels.

关键词： ferrite-rich sulfoaluminate cement cold zone early strength synergist mechanical property micro-structure pumped storage power

Rab18 maintains homeostasis of subcutaneous adipose tissue to prevent obesity-induced metabolic disorders

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Science China(life Sciences) 2024年第6期67卷 1170-1182页

作者： Jiaming liu liangkui li Dijin Xu Yuqi li Tao Chen Yeyang liu Yuqian Bao Yan Wang Longyan Yang Peng li li Xu State Key Laboratory of Membrane Biology and Tsinghua-Peking Center for life Sciences Beijing Advanced Innovation Center for Structural BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China Shanghai Qi Zhi Institute Shanghai 200232China Shanghai Key Laboratory of Metabolic Remodeling and Health Institute of Metabolism and Integrative BiologyFudan UniversityShanghai 200438China Tianjian Laboratory of Advanced Biomedical Sciences Zhengzhou UniversityZhengzhou 450001China Department of Physiology School of Basic Medical SciencesGannan Medical UniversityGanzhou 341000China Department of Endocrinology and Metabolism Shanghai Jiao Tong University School of Medicine Affiliated Sixth People’s HospitalShanghai 200025China Center for Endocrine Metabolism and Immune Diseases Beijing Luhe HospitalCapital Medical UniversityBeijing 101149China Beijing Key Laboratory of Diabetes Research and Care Beijing 101149China

Metabolically healthy obesity refers to obese individuals who do not develop metabolic *** people store fat in subcutaneous adipose tissue(SAT)rather than in visceral adipose tissue(VAT).However,the molecules participating in this specific scenario remain ***18,a lipid droplet(LD)-associated protein,mediates the contact between the endoplasmic reticulum(er)and LDs to facilitate LD growth and *** the present study,we show that the protein level of Rab18 is specifically upregulated in the SAT of obese people and ***18 adipocyte-specific knockout(Rab18 AKO)mice had a decreased volume ratio of SAT to VAT compared with wildtype *** subjected to high-fat diet(HFD),Rab18 AKO mice had increased er stress and inflammation,reduced adiponectin,and decreased triacylglycerol(TAG)accumulation in *** contrast,TAG accumulation in VAT,brown adipose tissue(BAT)or liver of Rab18AKO mice had a moderate increase without er stress ***18 AKO mice developed insulin resistance and systematic ***18 AKO mice maintained body temperature in response to acute and chronic cold induction with a thermogenic SAT,similar to the counterpart ***,Rab18-deficient 3T3-L1 adipocytes were more prone to palmitate-induced er stress,indicating the involvement of Rab18 in alleviating lipid ***18 AKO mice provide a good animal model to investigate metabolic disorders such as impaired *** conclusion,our studies reveal that Rab18 is a key and specific regulator that maintains the proper functions of SAT by alleviating lipid-induced er stress.

关键词： Rab18 subcutaneous adipose tissue(SAT) metabolically healthy obesity(MHO) lipotoxicity er stress ectopic lipid storage LD-er contact

CHD4.induced up-regulation of erα activity contributes to breast cancer progression

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Genes & Diseases 2024年第3期11卷 132-135页

作者： Aman Sattout Xiaomin Yu Zhuo Sun Yanan li Yulin li Shujing li Wei Huo Huijian Wu School of Bioengineering&Key Laboratory of Protein Modification and Disease Liaoning ProvinceDalian University of TechnologyDalianLiaoning 116024China Department of Oncology Central Hospital Affiliated with Dalian University of TechnologyDalianLiaoning 116089China

The estrogen signaling system is a crucial regulator of ***,abnormal activation of estrogen signaling may play a role in breast cancer initiation and *** to this pathway is the interaction between estrogen receptor alpha(era)and various co-transcription activators.1 Although numerous studies have investigated er coregulators,the protein-protein interaction networks of era are not fully *** research has shown that high chromodomain helicase DNA-binding 4.CHD4.expression is linked to poor prognosis in various cancers.2,?In this study,we demonstrated that both CHD4.and erαcontribute to breast cancer progression while providing evidence of the regulatory processes and functional interplay between these two proteins.

关键词： breast cancer erα