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High-resolution imaging of magnetic fields of banknote anti-counterfeiting strip using fiber diamond probe

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Chinese Physics B 2024年第4期33卷 720-727页

作者：赵旭彤何飞越薛雅文马文豪殷筱晗夏圣开曾明菁杜关祥 College of Telecommunications and Information Engineering Nanjing University of Posts and TelecommunicationsNanjing 210003China College of Science Nanjing University of Posts and TelecommunicationsNanjing 210003China School of Computer Science Nanjing University of Posts and TelecommunicationsNanjing 210023China Bell Honors School Nanjing University of Posts and TelecommunicationsNanjing 210023China

Counterfeiting of modern banknotes poses a significant challenge,prompting the use of various preventive *** such measure is the magnetic anti-counterfeiting ***,due to its inherent weak magnetic properties,visualizing its magnetic distribution has been a longstanding *** this work,we introduce an innovative method by using a fiber optic diamond probe,a highly sensitive quantum sensor designed specifically for detecting extremely weak magnetic *** employ this probe to achieve high-resolution imaging of the magnetic fields associated with the RMB 50denomination anti-counterfeiting ***,we conduct computer simulations by using COMSOL Multiphysics software to deduce the potential geometric characteristics and material composition of the magnetic region within the anti-counterfeiting *** findings and method presented in this study hold broader significance,extending the RMB 50 denomination to various denominations of the Chinese currency and other items that employ magnetic anti-counterfeiting *** advances have the potential to significantly improve and promote security measures in order to prevent the banknotes from being counterfeited.

关键词： banknote anti-counterfeiting strip nitrogen-vacancy(NV)centers magnetic field imaging numerical simulation

中华优秀传统文化资源融入高校思政教育的三重向度

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教育理论与实践 2024年第3期44卷 30-33页

作者：龚学文四川师范大学党委宣传部四川成都610068

中华优秀传统文化具有重要的思政教育价值,将其融入高校思政教育是推动文化传承与创新、提升民族文化自信、涵养社会主义核心价值观的题中之义,既有利于民族精神的延续,也有利于时代新人的培育。中华优秀传统文化资源融入高校思政教育时... 详细信息

中华优秀传统文化具有重要的思政教育价值,将其融入高校思政教育是推动文化传承与创新、提升民族文化自信、涵养社会主义核心价值观的题中之义,既有利于民族精神的延续,也有利于时代新人的培育。中华优秀传统文化资源融入高校思政教育时,应坚持文化传承与文化育人的价值向度,应体现品质特色与人才特色的内容向度,应践行文化活化与文化再生的实践向度。

关键词：中华优秀传统文化资源高校思政教育大学生文化传承文化育人品质特色文化再生

Treatment of primary nasal tuberculosis with anti-tumor necrosis factor immunotherapy:A case report

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World Journal of Clinical Cases 2024年第17期12卷 3271-3276页

作者： Yong-Cai Liu Min-Li Zhou Ke-Jia Cheng Shui-Hong Zhou xue wen Department of Otolaryngology The First Affiliated HospitalCollege of MedicineZhejiang UniversityHangZhou 310003Zhejiang ProvinceChina Department of Otolaryngology The First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhou 310003Zhejiang ProvinceChina Department of Pathology The First Affiliated HospitalMedical CollegeZhejiang UniversityHangzhou 310000Zhejiang ProvinceChina

BACKGROUND Primary nasal tuberculosis(TB)is a rare form of extrapulmonary TB,particularly in patients receiving anti-tumor necrosis factor(TNF)*** a result,its diagnosis remains *** SUMMARY A 58-year-old male patient presented to the ear,nose,and throat department with right-sided nasal obstruction and bloody discharge for 1 *** was diagnosed with psoriatic arthritis and received anti-TNF immunotherapy for 3 years prior to *** findings revealed chronic granulomatous inammation and a few acid-fast bacilli,suggestive of primary nasal *** was referred to our TB management department for treatment with oral anti-TB *** 9 months,the nasal lesions had *** recurrence was noted during *** The diagnosis of primary nasal TB should be considered in patients receiving TNF antagonists who exhibit thickening and crusting of the nasal septum mucosa or inferior turbinate,particularly when pathological findings suggest granulomatous inflammation.

关键词： Primary nasal tuberculosis Anti-tumor necrosis factor immunotherapy Granulomatous inflammation Psoriatic arthritis acid-fast bacilli Case report

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我国老年人群中的“积极效应”的元分析

心理学探新 2024年第2期44卷 113-121页

作者：崔雨亭文学海南师范大学心理学院海口571158 海南省青少年心理发展与教育研究基地海口571158

老年人的“积极效应”现象指与年轻人相比,老年人更倾向于注意和记忆积极信息、回避消极信息。近年来对该现象的研究出现了不同的观点,为从宏观视角对其进行剖析,进而推动老年人积极心理研究,采用元分析探究我国老年人积极效应的现状及... 详细信息

老年人的“积极效应”现象指与年轻人相比,老年人更倾向于注意和记忆积极信息、回避消极信息。近年来对该现象的研究出现了不同的观点,为从宏观视角对其进行剖析,进而推动老年人积极心理研究,采用元分析探究我国老年人积极效应的现状及其影响因素。结果表明,积极效应的总体效应量显著,达到中等水平;研究领域和评估方式的调节效应量均显著。进一步明确了我国老年人群中存在积极效应,研究领域和评估方式可能是影响积极效应的调节因素。

关键词：老年人积极效应元分析调节效应

RGS22 maintains the physiological function of ependymal cells to prevent hydrocephalus

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Science China Life Sciences 2024年

作者： xue Pang Lin Gu Qiu-Ying Han Jia-Qing Xing Ming Zhao Shao-Yi Huang Jun-Xi Yi Jie Pan Hao Hong wen xue xue-Qing Zhou Zhi-Hui Su Xin-Ran Zhang Li-Ming Sun Shao-Zhen Jiang Dan Luo Ling Chen Zheng-Jie Wang Yu Yu Tian Xia xue-Min Zhang Ai-Ling Li Tao Zhou Hong Cai Tao Li Nanhu Laboratory National Center of Biomedical Analysis School of Basic Medical Sciences Fudan University Department of Basic Medical Sciences School of Medicine Tsinghua University

Ependymal cells line the wall of cerebral ventricles and ensure the unidirectional cerebrospinal fluid （CSF） flow by beating their motile cilia coordinately. The ependymal denudation or ciliary dysfunction causes hydrocephalus. Here, we report that the deficiency of regulator of Gprotein signaling 22 （RGS22） results in severe congenital hydrocephalus in both mice and rats. Interestingly, RGS22 is specifically expressed in ependymal cells within the brain. Using conditional knock-out mice, we further demonstrate that the deletion of Rgs22 exclusively in nervous system is sufficient to induce hydrocephalus. Mechanistically, we show that Rgs22 deficiency leads to the ependymal denudation and impaired ciliogenesis. This phenomenon can be attributed to the excessive activation of lysophosphatidic acid receptor （LPAR） signaling under Rgs22–/–condition, as the LPAR blockade effectively alleviates hydrocephalus in Rgs22–/–rats. Therefore, our findings unveil a previously unrecognized role of RGS22 in the central nervous system, and present RGS22 as a potential diagnostic and therapeutic target for hydrocephalus.

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不同工况下可见-近红外光谱的煤矸识别研究

光谱学与光谱分析 2024年第3期44卷 821-828页

作者：刘涛李博夏蕊李瑞王学文太原理工大学机械与运载工程学院煤矿综采装备山西省重点实验室山西太原030024

在实现煤炭高效利用过程中,煤矸分选是一个非常重要的步骤,但现有的煤矸分选技术存在资源浪费,效率较低等问题。可见-近红外光谱识别技术具有快速可靠的优点,在煤矸识别领域已有一定的研究基础,但大多数研究并未结合实际工况进行有效分... 详细信息

在实现煤炭高效利用过程中,煤矸分选是一个非常重要的步骤,但现有的煤矸分选技术存在资源浪费,效率较低等问题。可见-近红外光谱识别技术具有快速可靠的优点,在煤矸识别领域已有一定的研究基础,但大多数研究并未结合实际工况进行有效分析。首先,在实验室中搭建可见-近红外光谱采集装置,模拟实际环境下不同探测角度(0°、10°、20°、30°)、探测距离(10、15、20、25 cm)、光照角度(15°、25°、35°、45°)三种工况,并分别在单因素条件以及正交试验设计的多因素条件下,采集山西西铭煤矿的煤和矸石样本在可见-近红外波段的光谱数据。其次,对采集的光谱数据进行分析,并先后经过标准正态变量变换和Savitzky-Golay卷积平滑,以减少噪音和误差对数据的影响。最后,在单因素试验中,结合预处理算法并基于决策树(DT)、K近邻(KNN)、偏最小二乘判别分析(PLS-DA)、支持向量机(SVM)、AdaBoost五种机器学习模型对光谱数据进行训练。单因素试验结果表明,AdaBoost算法具有较强的学习能力,在不同工况下对煤和矸石的识别准确率均为100%,优于其他识别模型。在正交试验中,支持向量机(SVM)作为识别模型进行训练,结果表明,在原始数据和预处理后的数据中,三种工况对煤矸识别准确率的影响程度不同,影响次序从大到小为不同光照角度、探测距离、探测角度。同时,对比实验结果可以得出,选用合适的预处理和建模方法可以降低不同工况对识别准确率的影响。预处理后的数据中,最优的工况组合为探测角度0°、探测距离20、光照角度35°。随机选取一组条件与最优组进行三次重复对照试验,结果表明最优组的识别表现优于随机对照组。研究结果对煤矸识别最优工况条件的寻找具有借鉴意义,并为可见-近红外光谱技术在煤矸识别领域的实际应用提供了理论基础。

关键词：可见-近红外光谱不同工况煤矸识别 AdaBoost 正交试验

金融健康背景下农户消费信贷的杠杆效应——基于农村固定观察点数据的分析

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消费经济 2024年第2期40卷 37-50页

作者：曾学文张斌中国农业银行中国农业银行博士后科研工作站对外经济贸易大学博士后流动站

壮大农村消费市场,既要发挥好消费信贷的加速器作用,同时也要兼顾好农户金融健康问题。本文使用农研中心农村固定观察点调查数据库,实证考察了金融健康背景下农户消费信贷的杠杆效应。研究发现,消费信贷激活农村消费存在“倒U型”特征,... 详细信息

壮大农村消费市场,既要发挥好消费信贷的加速器作用,同时也要兼顾好农户金融健康问题。本文使用农研中心农村固定观察点调查数据库,实证考察了金融健康背景下农户消费信贷的杠杆效应。研究发现,消费信贷激活农村消费存在“倒U型”特征,农户适度加杠杆有利于消费扩张,并驱动其由生存型消费为主向发展型和享受型消费升级,但杠杆率过高对消费增长将形成反向抑制;进一步就异质性影响看,不同农户群体、不同地域之间的特征表现存在一定的差异。就不同群体看,以农村公共服务、私营企业经营为主要收入来源的农户相比以农业经营、务工收入为主的农户,消费信贷激活消费支出的弹性更强,消费信贷拓展空间更大;就不同地域看,中、西部地区农村消费信贷发展相对滞后,激发农户消费的边际动能不足。本文为平衡好农户消费信贷和金融健康之间的逻辑关系提供了经验证据,为精准化提升农村消费金融服务,支持农户消费信贷可持续发展提供了理论遵循。

关键词：金融健康消费信贷农户消费扩容升级非线性影响

Exploration of potential biomarkers and therapeutic targets for trauma-related acute kidney injury

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Chinese Journal of Traumatology 2024年第2期27卷 97-106页

作者： Peng Qi Meng-Jie Huang Wei Wu xue-wen Ren Yong-Zhi Zhai Chen Qiu Hai-Yan Zhu Department of Emergency First Medical Center of Chinese PLA General HospitalBeijing100853China Department of Nephrology.First Medical Center of Chinese PLA General Hospital Beijing100853China Department of Anesthesiology.First Medical Center of Chinese PLA General Hospital Beijing100853China Department of Orthopedics Fourth Medical Center of Chinese PLA General HospitalBeijing100853China

Purpose:Acute kidney injury(AKI)is one of the most common functional injuries observed in trauma ***,certain trauma medications may exacerbate renal ***,the early detection of trauma-related AKI holds paramount importance in improving trauma ***:Qualified datasets were selected from public databases,and common differentially expressed genes related to trauma-induced AKI and hub genes were identified through enrichment analysis and the establishment of protein-protein interaction(PPI)***,the specificity of these hub genes was investigated using the sepsis dataset and conducted a comprehensive literature review to assess their *** raw data from both datasets were downloaded using R software(version 4.2.1)and processed with the"affy"package19 for correction and ***:Our analysis revealed 585 upregulated and 629 downregulated differentially expressed genes in the AKI dataset,along with 586 upregulated and 948 downregulated differentially expressed genes in the trauma ***,the establishment of the PPI network and subsequent topological analysis highlighted key hub genes,including CD44,CD163,TIMP metallopeptidase inhibitor 1,cytochrome b-245 beta chain,versican,membrane spanning 4-domains A4A,mitogen-activated protein kinase 14,and early growth response ***,their receiver operating characteristic curves displayed areas exceeding 75%,indicating good diagnostic ***,our findings postulated a unique molecular mechanism underlying trauma-related ***:This study presents an alternative strategy for the early diagnosis and treatment of trauma-related AKI,based on the identification of potential biomarkers and therapeutic ***,this study provides theoretical references for elucidating the mechanisms of trauma-related AKI.

关键词： Trauma Acutekidney injury Bioinformatic analysis Differentially expressed genes Biomarker

助力还是阻力:税收优惠政策与企业数字化转型

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经济问题 2024年第4期 37-43页

作者：柳雅君薛文静山西财经大学会计学院山西太原030006

税收优惠政策在推进企业数字化转型中发挥了助力还是阻力,这是亟须研究的重要课题。基于2008—2021年中国上市公司数据,考察税收优惠政策对企业数字化转型的影响及作用机制。研究发现:税收优惠能有效促进企业数字化转型,且可以通过促进... 详细信息

税收优惠政策在推进企业数字化转型中发挥了助力还是阻力,这是亟须研究的重要课题。基于2008—2021年中国上市公司数据,考察税收优惠政策对企业数字化转型的影响及作用机制。研究发现:税收优惠能有效促进企业数字化转型,且可以通过促进创新产出、缓解债务风险及优化融资环境的路径提高企业数字化转型水平。进一步研究发现,将税收优惠区分研发费用加计扣除和固定资产加速折旧这两种不同优惠方式,加计扣除与加速折旧对企业数字化转型的影响效应具有显著差异,加计扣除与企业数字化转型呈倒“U”型关系,而加速折旧显著促进了企业数字化转型,且两者之间没有形成“1+1>2”的协同效应。异质性检验发现,税收优惠促进企业数字化转型的作用在非国有企业、内部控制质量较高和成熟期企业较为明显。研究结论有利于厘清税收优惠政策助推企业数字化转型的作用机制,促进企业加快数字化转型。

关键词：税收优惠数字化转型加计扣除固定资产加速折旧