检索结果-南通市图书馆

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao Yu yingjie Zhou Yao Lin ying wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

在线全文

学校读者我要写书评

暂无评论

水泥混凝土路面施工工艺与措施

建材世界 2012年第2期33卷 46-49页

作者：揭英武深圳高速工程顾问有限公司深圳518034

该文结合作者施工经验,对水泥混凝土路面主要病害的成因和施工工艺与措施进行了介绍。

关键词：水泥路面病害成因工艺措施

Storage time affects the level and diagnostic efficacy of plasma biomarkers for neurodegenerative diseases

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第8期20卷 2373-2381页

作者： Lifang Zhao Mingkai Zhang Qimeng Li Xuemin Wang jie Lu ying Han Yanning Cai Department of Clinical Biobank Xuanwu HospitalCapital Medical UniversityBeijingChina Beijing Geriatric Medical Research Center BeijingChina Department of Neurology Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Radiology and Nuclear Medicine Xuanwu HospitalCapital Medical UniversityBeijingChina Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics BeijingChina Key Laboratory of Neurodegenerative diseases Ministry of EducationBeijingChina School of Biomedical Engineering Hainan UniversityHaikouHainan ProvinceChina Center of Alzheimer’s Disease Beijing Institute for Brain DisordersBeijingChina National Clinical Research Center for Geriatric Diseases BeijingChina Institute of Biomedical Engineering Shenzhen Bay LaboratoryGaoke Innovation CenterShenzhenGuangdong ProvinceChina Department of Neurobiology Xuanwu HospitalCapital Medical UniversityBeijingChina

Several promising plasma biomarker proteins,such as amyloid-β(Aβ),tau,neurofilament light chain,and glial fibrillary acidic protein,are widely used for the diagnosis of neurodegenerative ***,little is known about the long-term stability of these biomarker proteins in plasma samples stored at-80°*** aimed to explore how storage time would affect the diagnostic accuracy of these biomarkers using a large *** samples from 229 cognitively unimpaired individuals,encompassing healthy controls and those experiencing subjective cognitive decline,as well as 99 patients with cognitive impairment,comprising those with mild cognitive impairment and dementia,were acquired from the Sino Longitudinal Study on Cognitive Decline *** samples were stored at-80°C for up to 6 years before being used in this *** results showed that plasma levels of Aβ42,Aβ40,neurofilament light chain,and glial fibrillary acidic protein were not significantly correlated with sample storage ***,the level of total tau showed a negative correlation with sample storage ***,in individuals without cognitive impairment,plasma levels of total protein and tau phosphorylated protein threonine 181(p-tau181)also showed a negative correlation with sample storage *** was not observed in individuals with cognitive ***,we speculate that the diagnostic accuracy of plasma p-tau181 and the p-tau181 to total tau ratio may be influenced by sample storage ***,caution is advised when using these plasma biomarkers for the identification of neurodegenerative diseases,such as Alzheimer's ***,in cohort studies,it is important to consider the impact of storage time on the overall results.

关键词： Alzheimer’s disease amyloid-β diagnostic ability glial fibrillary acidic protein neurodegeneration neurofilament light chain plasma biomarkers single molecule array storage time tau

Aquaporin 4 deficiency attenuates chronic neuropathic pain,but not acute pain

在线全文

学校读者我要写书评

暂无评论

Aquaporin 4 deficiency attenuates chronic neuropathic pain,b...

Photoinduced radical sulfur dioxide insertion with asymmetric cyclization of alkenes: accessing β-chiral sulfones bearing S-stereocentric cyclic sulfinamides

中国药理学会第十一次全国学术会议

作者： LU Guan-yi,PANG Chong,CHEN ying,SUN Ya-jie,wu Ning,LI Jin (Beijing Institute of Pharmacology and Toxicology,Beijing 100850,China)

OBJECTIVE To study the role of AQP4 deficiency in pain and to explore its possible *** We investigated the effect of AQP4 knockout on acute pain responses by thermal(hot-plate and tail-flick tests),chemical(formalin and capsaicin tests) and mechanical(von Frey hair test) stimuli,then investigated the effect of AQP4 knockout on chronic neuropathic pain by the spared nerve injury(SNI) *** expression of astrocytes activate related protein glial fibers acid protein(GFAP) was analyzed by western blot and the content of proinflammatory cytokines(TNF-α,IL-1βand IL-6) in spinal cord were detected by ***(1) Effects of AQP4 deficiency on acute pain and chronic neuropathic *** the tail-flick and hot-plate tests, two acute pain models of thermal stimuli,the latency of licking hindpaw or tail flick had no differences between wild type(WT) and AQP4 knockout(KO) *** capsaicin and formalin tests,two models of chemical stimuli,the durations of licking injected hind-paws had no differences between WT and KO *** the von Frey hair test,a model of mechanical sitimuli,no significant difference in 50%PWT was found between these two genotypes mice as *** the SNI model,a chronic neuropathic pain model,a significant attenuation in mechanical allodynia were detected in KO mice compared with WT mice(P<0.01).These results indicated that AQP4 deficiency attenuated chornic neuropathic pain,but not thermal,chemical or mechanical-stimulated acute pain.(2) The possible mechanism of AQP4 deficiency attenuating chronic neuropathic *** the SNI model,compared with WT-Sham group,the GFAP protein level in the spinal cord was significantly increased in WT-SNI group;however,no difference in the GFAP protein level in the spinal cord was detected between KO-SNI and KO-Sham *** addition,the contents of TNF-αand IL-6,but not IL-1β,in the spinal cord were increased in WT-SNI group,while the contents of these two proinflammatory cytokines had no differences

关键词： AQP4 pain astrocyte proinflammatory cytokine

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Science China Chemistry 2025年第01期 257-263页

作者： Jiapian Huang Chenxin Wang Xu Wang Xiaoyu Zhou Wei Xiao jie wu School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies Taizhou University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences School of Chemistry and Chemical Engineering Henan Normal University

The generation of various β-chiral sulfones bearing chiral cyclic sulfinamides through photoredox-catalyzed sulfur dioxide insertion with asymmetric radical cyclization is described. This method features a broad substrate scope and excellent stereospecificity. Computational studies reveal that the dispersion interaction between sulfinyl group and CH2SO2Ph group plays a crucial role in the stereoselectivity control.

关键词：

同方期刊数据库

视网膜静脉阻塞继发黄斑水肿发病机制及黄斑水肿影响视功能的研究进展

在线全文

学校读者我要写书评

暂无评论

国际眼科杂志 2019年第11期19卷 1888-1891页

作者：雍红芳戚卉吴瑛洁吴倩倩左玲吉林大学第二医院眼底病科

视网膜静脉阻塞(RVO)是一种常见的视网膜血管疾病,其继发的黄斑水肿(ME)是引起患者视力下降的主要原因。RVO继发ME的发病机制复杂,目前尚未充分阐明,有许多细胞和细胞因子参与其中,使进入和转出视网膜液体之间的平衡被打乱,进而形成ME... 详细信息

视网膜静脉阻塞(RVO)是一种常见的视网膜血管疾病,其继发的黄斑水肿(ME)是引起患者视力下降的主要原因。RVO继发ME的发病机制复杂,目前尚未充分阐明,有许多细胞和细胞因子参与其中,使进入和转出视网膜液体之间的平衡被打乱,进而形成ME。本文就RVO继发ME的发病机制以及ME影响视功能的机制展开综述。

关键词：视网膜静脉阻塞黄斑水肿视功能细胞因子发病机制

Chondroitinase ABC combined with Schwann cell transplantation enhances restoration of neural connection and functional recovery following acute and chronic spinal cord injury

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第5期20卷 1467-1482页

作者： Wenrui Qu Xiangbing wu Wei wu ying Wang Yan Sun Lingxiao Deng Melissa Walker Chen Chen Heqiao Dai Qi Han ying Ding Yongzhi Xia George Smith Rui Li Nai-Kui Liu Xiao-Ming Xu Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteDepartment of Neurological SurgeryIndiana University School of MedicineIndianapolisINUSA Department of Hand Surgery the Second Hospital of Jilin UniversityChangchunJilin ProvinceChina Shriners Hospitals Pediatric Research Center Temple University School of MedicinePhiladelphiaPAUSA Department of Anatomy&Cell Biology Indiana University School of MedicineIndianapolisINUSA

Schwann cell transplantation is considered one of the most promising cell-based therapy to repair injured spinal cord due to its unique growth-promoting and myelin-forming properties.A the Food and Drug Administration-approved Phase I clinical trial has been conducted to evaluate the safety of transplanted human autologous Schwann cells to treat patients with spinal cord injury.A major challenge for Schwann cell transplantation is that grafted Schwann cells are confined within the lesion cavity,and they do not migrate into the host environment due to the inhibitory barrier formed by injury-induced glial scar,thus limiting axonal reentry into the host spinal *** we introduce a combinatorial strategy by suppressing the inhibitory extracellular environment with injection of lentivirus-mediated transfection of chondroitinase ABC gene at the rostral and caudal borders of the lesion site and simultaneously leveraging the repair capacity of transplanted Schwann cells in adult rats following a mid-thoracic contusive spinal cord *** report that when the glial scar was degraded by chondroitinase ABC at the rostral and caudal lesion borders,Schwann cells migrated for considerable distances in both rostral and caudal *** Schwann cell migration led to enhanced axonal regrowth,including the serotonergic and dopaminergic axons originating from supraspinal regions,and promoted recovery of locomotor and urinary bladder ***,the Schwann cell survival and axonal regrowth persisted up to 6 months after the injury,even when treatment was delayed for 3 months to mimic chronic spinal cord *** findings collectively show promising evidence for a combinatorial strategy with chondroitinase ABC and Schwann cells in promoting remodeling and recovery of function following spinal cord injury.

关键词： axonal regrowth bladder function chondroitinase ABC functional recovery glial scar lentivirus migration Schwann cell spinal cord injury transplantation

Observation of topological charge transformations in acoustic vortex using passive periodic systems

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 140-147页

作者： Di-Chao Chen Xie Liu Changqing Xu Da-Jian wu ying Cheng Xiao-Jun Liu School of Physics and Technology Nanjing Normal University Key Laboratory of Modern Acoustics School of Physics Nanjing University

Vortex transmutation utilizes a periodic system, which not only enables the alteration of the topological charge(TC) of unstable input vortices but also facilitates their transformation into stable structures. This approach is crucial for investigating the characteristics of vortices in various wave systems. Here, we achieve acoustic vortex TC transmutation by employing a welldesigned dual-structured plate external system(DPES). The interactions between the acoustic vortex and the finite-order discrete rotational symmetry lead to the transformation of its topological charge when complete rotational symmetry is broken to Nthorder discrete symmetry. Our results experimentally demonstrate the acoustic vortex TC transmutation based on passive artificial structures, enabling numerous applications in particle manipulation and information multiplexing as well as advancing our understanding and control over free-space acoustic vortices.

关键词： acoustic vortex topological charge transformation artificial structure

两个苯并咪唑羧酸稀土配合物的合成、晶体结构及荧光性质

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

化学试剂 2017年第10期39卷 1049-1053页

作者：张倩陈垒叶英杰吴家进河南工程学院材料与化学工程学院河南郑州450007

合成了1,3-二羧甲基苯并咪唑有机配体,并与氯化铕、氯化钐反应得到了两个新的稀土配合物,通过元素分析、X-射线单晶衍射及X-射线粉末衍射对其进行表征。晶体结构表明,两个配合物结构均为两个金属中心被4个配体桥联形成Ln_2O_8型双核次... 详细信息

合成了1,3-二羧甲基苯并咪唑有机配体,并与氯化铕、氯化钐反应得到了两个新的稀土配合物,通过元素分析、X-射线单晶衍射及X-射线粉末衍射对其进行表征。晶体结构表明,两个配合物结构均为两个金属中心被4个配体桥联形成Ln_2O_8型双核次级结构基元,通过(κ~1-κ~1-μ_2)-(κ~1)-μ_3配位模式与配体形成(4,4)拓扑的二维网络结构。同时测定了这两个配合物的热稳定性及Eu配合物的荧光性质。

关键词：稀土配合物苯并咪唑羧酸二维网络结构荧光性质

Broadband and perfect terahertz absorber based on multilayer metamaterial with cross-ring patterned structures

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2025年第1期21卷 1-6页

作者： WEN Jin LIU Zhanzhi wu Zhengwei PAN Yu ZHANG ying School of Science Xi'an Shiyou University Shaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells

Broadband and perfect terahertz absorber based on multilayer metamaterial using cross-ring patterned structures is proposed and investigated. The structure of the absorber is double absorption layers consisting of a chromium cross ring and eight isosceles right triangles. The unique structure of the double absorbing layers excites the electric dipole multimode resonance, giving rise to high absorption performance. Meanwhile, the influence of construal parameters on absorber behavior is also discussed. The numerical results show that the absorption achieves over 90% ranging from 2.45 THz to 6.25 THz and 99% absorption in the range of 3.7—5.3 THz. The realization of broadband and perfect absorber is described using the impedance matching principle. It is obviously found that the absorber is insensitive to the high angle of incidence for both transverse electric(TE) and transverse magnetic(TM) polarizations. Compared with the former reports, this absorber has remarkable improved absorption efficiency and smaller period. The terahertz absorber may be found applications in the fields of energy capture and thermal detection.

关键词： Metamaterials