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羧酸盐柱[5]芳烃功能化银纳米粒子的制备及其对有机染料催化降解性能分析

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分析化学 2024年第4期52卷 513-522页

作者：张郡童陶欣杨云汉陈艳杨明坤杨举杨丽杨丽娟云南民族大学化学与环境学院生物基材料绿色制备技术国家地方联合工程中心云南省高校智能超分子化学重点实验室

制备了羧酸盐柱[5]芳烃（Carboxylated pillar[5]arene, CP5A）功能化的银纳米粒子（CP5A-Ag NPs）。采用紫外-可见吸收光谱（UV-Vis）、傅里叶变换红外吸收光谱（FT-IR）和透射电镜（TEM）等对CP5A-AgNPs进行了表征。TEM结果表明，当C... 详细信息

制备了羧酸盐柱[5]芳烃（Carboxylated pillar[5]arene, CP5A）功能化的银纳米粒子（CP5A-Ag NPs）。采用紫外-可见吸收光谱（UV-Vis）、傅里叶变换红外吸收光谱（FT-IR）和透射电镜（TEM）等对CP5A-AgNPs进行了表征。TEM结果表明，当CP5A与AgNO3的摩尔比为1∶10时，制备的CP5A-AgNPs分散性好、粒径均一，平均粒径为4.05 nm。CP5A-AgNPs对两种不同类型染料罗丹明B（RhB）和甲基橙（MO）的催化降解率分别为99.91%和98.83%，并且具有较好的循环催化能力，第5次催化效率分别为91.06%和98.45%。比较了CP5A对应的单体化合物（Carboxylated monomer arene, CMA）作为稳定剂时所制备的CMA-AgNPs的性能。结果表明，CP5A功能化的AgNPs具备更好的分散性、稳定性和催化性能，不仅对RhB和MO具有较强的催化降解能力，而且循环催化能力良好。

关键词：羧酸盐柱芳烃银纳米粒子催化降解有机染料

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Accelerated generation of holograms with ultra-low memory symmetrically high-compressed look-up table

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Chinese Physics B 2024年第4期33卷 466-471页

作者：杨燕朱建英孙敏远毕勇 Applied Laser Research Center Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Computer-generated holography technology has been widely applied,and as research in this field deepens,the demand for memory and computational power in small AR and VR devices continues to *** paper presents a hologram generation method,i.e.,a symmetrically high-compressed look-up table method,which can reduce memory usage by50%.In offline computing,half of the basic horizontal and vertical modulation factors are stored,halving the memory requirements without affecting inline ***,its potential extends to various holographic applications,including the production of optical diffraction elements.

关键词： computergenerated hologram look-up table holography

模型误差影响下基于CNN+BiLSTM神经网络的非圆信号目标直接跟踪算法

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电子学报 2024年第4期52卷 1315-1329页

作者：尹洁昕王鼎杨欣杨宾中国人民解放军战略支援部队信息工程大学信息系统工程学院河南郑州450001 国家数字交换系统工程技术研究中心河南郑州450002 郑州大学计算机与人工智能学院河南郑州450001

针对运动观测阵列状态误差与接收频率抖动同时影响下的非圆信号无源跟踪问题,提出了一种基于卷积神经网络(Convolutional Neural Network,CNN)+双向长短时记忆网络(Bi-directional Long Short-Term Memory,BiL⁃STM)的直接跟踪算法.该算... 详细信息

针对运动观测阵列状态误差与接收频率抖动同时影响下的非圆信号无源跟踪问题,提出了一种基于卷积神经网络(Convolutional Neural Network,CNN)+双向长短时记忆网络(Bi-directional Long Short-Term Memory,BiL⁃STM)的直接跟踪算法.该算法首先利用多运动观测阵列信号各频带间的相关性与辐射源信号的非圆特性,建立模型误差影响下的扩展多站观测矢量;接着利用多个观测时隙内扩展多站观测矢量的信号子空间构造空时特征输入序列;然后设计基于CNN与BiLSTM混合神经网络的直接跟踪模型,通过训练实现对非圆目标的轨迹矢量直接估计.本文算法是从原始数据信号子空间中估计轨迹矢量的直接跟踪模式,相比传统“观测参数估计+滤波轨迹跟踪”的两步估计模式,具有更高的估计精度.由于本文算法在神经网络训练过程中学习到模型误差的信息,因此能够实现对多种误差的校正.仿真结果表明,本文算法较传统两步跟踪算法与现有直接跟踪算法均具有更高的轨迹估计精度,能够明显提升模型误差影响下多站协同跟踪的鲁棒性.

关键词：直接跟踪非圆信号模型误差卷积神经网络双向长短时记忆网络

城市小区安全自治如何夯实国家安全基层基础——基于长沙市J小区业主自管的案例研究

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城市发展研究 2024年第5期31卷 118-125页

作者：杨安华杨航广东技术师范大学管理学院湘潭大学公共管理学院

中共“二十大”开启了由基层安全联结国家安全的中国安全治理新路径，通过加强小区安全治理夯实国家安全的基层基础，成为学术界回应国家重大战略需求的重要议题。基于长沙市J小区业主自管的案例研究发现，业主自管具备充分的法理基础... 详细信息

中共“二十大”开启了由基层安全联结国家安全的中国安全治理新路径，通过加强小区安全治理夯实国家安全的基层基础，成为学术界回应国家重大战略需求的重要议题。基于长沙市J小区业主自管的案例研究发现，业主自管具备充分的法理基础和完善的治理要素，能填补国家安全体系的基层“真空”,业主自管参与小区安全治理实际上是小区嵌入国家安全治理环境并展开行为活动的过程：以创新小区传统治理模式为基础，业主自管通过结构嵌入、政策嵌入、资本嵌入和文化嵌入等方式与小区安全治理实现深度融合，助力小区重构治理核心、强化制度规范、整合治理资本与培育公共文化，实现了小区安全的有效治理，以此夯实了国家安全最为基层的基础。

关键词：小区安全国家安全业主自管基层自治

可持续发展目标6视角下黄河流域城市群水足迹时空演变及驱动因素

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地理科学 2024年第5期44卷 853-863页

作者：杨屹杨凤仪西安理工大学经济与管理学院陕西西安710054 安康学院经济与管理学院陕西安康725000

本研究以黄河流域5座国家级城市群为研究对象,探索性地采用水足迹及其相关评价指标构建面向可持续发展目标6的水资源利用水平评价框架。在描述2010―2019年城市群水足迹时空演变特征的基础上分别建立流域整体、上中游和下游城市群的空... 详细信息

本研究以黄河流域5座国家级城市群为研究对象,探索性地采用水足迹及其相关评价指标构建面向可持续发展目标6的水资源利用水平评价框架。在描述2010―2019年城市群水足迹时空演变特征的基础上分别建立流域整体、上中游和下游城市群的空间计量模型,探讨驱动水足迹变化的因素。结果表明,城市群水足迹及相关指标均有所下降,自上游至下游呈梯级分布格局,上中游和下游城市群水足迹表现出两极分化的集聚状态,整体向“低−低”集聚跃迁。驱动因素在不同城市群之间存在着显著的差异性和空间交互效应。为此,提出强化中心城市辐射带动作用、提升城市群水资源生态系统韧性、根据不同城市群的比较优势实施差异性水资源系统治理等对策建议。

关键词：可持续发展目标城市群黄河流域水足迹驱动因素

A piezoelectric-driven microneedle platform for skin disease therapy

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The Innovation 2024年第3期5卷 110-121页

作者： Ziyan Chen Xin Liu Zixi Jiang Huayi Wu Tao yang Lanyuan Peng Lisha Wu Zhongling Luo Mi Zhang Juan Su Yan Tang Jinmao Li yang Xie Han Shan Qibo Lin Xiuli Wang Xiang Chen Hanmin Peng Shuang Zhao Zeyu Chen Department of Dermatology Xiangya HospitalCentral South UniversityChangsha 410008China Furong Laboratory(Precision Medicine) Changsha 410008China National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology Xiangya HospitalCentral South UniversityChangsha 410008China Hunan Engineering Research Center of Skin Health and Disease Xiangya HospitalCentral South UniversityChangsha 410008China Hunan Key Laboratory of Skin Cancer and Psoriasis Xiangya HospitalCentral South UniversityChangsha 410008China National Clinical Research Center of Geriatric Disorders Xiangya HospitalCentral South UniversityChangsha 410008China School of Mechanical and Electrical Engineering Central South UniversityChangsha 410083China Department of Dermatology Xijing HospitalThe Fourth Military Medical UniversityXi’anShaanxi 710000China State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics&AstronauticsNanjing 210016China Institute of Photomedicine Shanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghai 200443China

With over a million cases detected each year,skin disease is a global public health problem that diminishes the quality of life due to its difficulty to eradicate,propensity for recurrence,and potential for post-treatment *** therapy(PDT)is a treatment with minimal invasiveness or scarring and few side effects,making it well tolerated by ***,this treatment requires further research and development to improve its effective clinical ***,a piezoelectric-driven microneedle(PDMN)platform that achieves high efficiency,safety,and non-invasiveness for enhanced PDT is *** platform induces deep tissue cavitation,increasing the level of protoporphyrin IX and significantly enhancing drug penetration.A clinical trial involving 25 patients with skin disease was conducted to investigate the timeliness and efficacy of PDMN-assisted PDT(PDMN-PDT).Our findings suggested that PDMN-PDT boosted treatment effectiveness and reduced the required incubation time and drug concentration by 25%and 50%,respectively,without any anesthesia compared to traditional *** findings suggest that PDMN-PDT is a safe and minimally invasive approach for skin disease treatment,which may improve the therapeutic efficacy of topical medications and enable translation for future clinical applications.

关键词： needle anesthesia clinical

Cellular and Transcriptional Dynamics during Brown Adipose Tissue Regeneration under Acute Injury

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Research 2024年第3期2023卷 345-357页

作者： Wenjing You Ziye Xu Wentao Chen Xin yang Shiqi Liu Liyi Wang Yuang Tu Yanbing Zhou Teresa G.Valencak Yizhen Wang Shihuan Kuang Tizhong Shan College of Animal Sciences Zhejiang UniversityHangzhouChina The Key Laboratory of Molecular Animal Nutrition Ministry of EducationHangzhouChina Zhejiang Provincial Laboratory of Feed and Animal Nutrition HangzhouChina Department of Laboratory Medicine the First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhouChina Department of Animal Sciences Purdue UniversityWest LafayetteINUSA.

Brown adipose tissue(BAT)is the major site of non-shivering thermogenesis and crucial for systemic *** chronic cold exposures and high-fat diet challenges,BAT undergoes robust remodeling to adapt to physiological ***,whether and how BAT regenerates after acute injuries are poorly ***,we established a novel BAT injury and regeneration model(BAT-IR)in mice and performed single-cell RNA sequencing(scRNA-seq)and bulk RNA-seq to determine cellular and transcriptomic dynamics during *** further defined distinct fibro-adipogenic and myeloid progenitor populations contributing to BAT *** trajectory and gene expression analyses uncovered the involvement of MAPK,Wnt,and Hedgehog(Hh)signaling pathways in BAT *** confirmed the role of Hh signaling in BAT development through Myf5Cre-mediated conditional knockout(cKO)of the Sufu gene to activate Hh signaling in BAT and muscle *** BAT-IR model therefore provides a paradigm to identify conserved cellular and molecular mechanisms underlying BAT development and remodeling.

关键词： injuries involvement acute

Successful treatment of severe monkeypox case with advanced HIV infection using plasma from smallpoxvaccinated healthy population:A case report

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iLABMED 2024年第1期2卷 60-66页

作者： Chuming Chen Weiming Yao Siran Huang Ling Peng Shiyan Feng Weibo Wu Yunlan Yi Zhiqiang Cheng yang yang Yan yang Liuqing yang Hongzhou Lu Fuxiang Wang Department of Infectious Diseases National Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalThe Second Affiliated HospitalSchool of MedicineSouthern University of Science and TechnologyShenzhenGuangdongChina Department of Pathology National Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalThe Second Affiliated HospitalSchool of MedicineSouthern University of Science and TechnologyShenzhenGuangdongChina Department of Blood Transfusion National Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalThe Second Affiliated HospitalSchool of MedicineSouthern University of Science and TechnologyShenzhenGuangdongChina

Since the first reported case of monkeypox in the UK in May 2022,there has been an upward trend in monkeypox cases and a global ***,reports of severe cases are relatively *** this study,we report a case of severe monkeypox in a patient with *** patient presented with skin lesions that started on his face and around the penis and persisted for several *** the course of the disease,he received systematic symp-tomatic supportive treatment,topical remedies,and special care for the *** also underwent cidofovir antiviral therapy and smallpox‐vaccinated healthy population‐derived plasma therapy in succession,with the condition ultimately showing improvement after plasma *** more than 3 months of hospitalization,he fully *** the best of our knowledge,this is the first reported use of smallpox‐vaccinated healthy population‐derived plasma in the treatment of severe monkeypox cases.

关键词： antiviral therapy co‐infection HIV monkeypox plasma therapy severe infection

Diagnostic approaches for monkeypox virus

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iLABMED 2024年第1期2卷 6-13页

作者： Guohao Fan Jiahua Kuang Shengjie Zhang yang yang Yingxia Liu Hongzhou Lu Shenzhen Key Laboratory of Pathogen and Immunity Shenzhen Clinical Research Center for Infectious DiseaseState Key Discipline of Infectious DiseaseShenzhen Third People's HospitalSecond Hospital Affiliated to Southern University of Science and TechnologyShenzhenChina National Clinical Research Center for Infectious Disease ShenzhenChina

Mpox(formerly Monkeypox)is a zoonotic infection caused by Monkeypox virus(MPXV).Since 2022,Mpox epidemics have occurred in many nonendemic countries and regions,leading the World Health Organization to declare a public health emergency of international *** the persistent transmission and evolution of MPXV,symptoms of Mpox have become milder,with some infections being *** addition,MPXV has become more ***,rapid and accurate diagnosis and screening of MPXV is vital to prevent and control MPXV ***,we review and summarize the technical details,application scenarios,and the advantages and disadvantages of MPXV‐specific diagnostic methods.

关键词： antigen diagnosis laboratory testing monkeypox virus specimens