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Highly sensitive fluorescent sensing and photocatalytic degradation performance of two-dimensional Tb-organic network

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Journal of Rare Earths 2024年第2期42卷 303-313,I0003页

作者： Ting Gao zhihu Ma Yixia Ren Zhixiang Wang Meili Zhang Xiaoli chen Jijiang Wang Laboratory of New Energy and New Function Materials Shaanxi Key Laboratory of Chemical Reaction EngineeringCollege of Chemistry and Chemical EngineeringYan'an UniversityYan'an716000China

A novel tetra-nuclear Tb-organic network,named as [Tb_(4)(2-pyia)_(6)(HAc)_(0.5)(2,2'-bipy)(H_(2)O)_(4.5)]·2,2'-bipy·H_(2)O(1),was synthesized hydrothermally based on 5-(pyridin-2-ylmethoxy) isophthalic acid(H_(2)pyia) and 2,2'-bipyridine(2,2'-bipy) ligands,and characterized by single crystal X-ray diffraction,thermogravimetric(TG) analyses,powder X-ray diffraction(PXRD) and infrared(IR) technology.1 possesses a two-dimensional network based on the tetra-nuclear inorganic building units,and the π-πstacking interactions between the pyia^(2-) ligands and the guest 2,2'-bipy molecules play an important role in the forming of 3D supramolecular structure.1 exhibits excellent fluorescent sensing performance for Fe^(3+)(1.26×10^(-8) mol/L),Cr_(2)O_(7)^(2-)(8.1×10^(-7) mol/L),2,4,6-trinitrophenol(TNP)(2.71×10^(-8) mol/L)and tetracycline(TCT)(2.76×10^(-7) mol/L) in aqueous solution with lower detection *** sensing mechanisms of 1 were investigated by density functional theory(DFT) calculations,ultraviolet-visible(UV-Vis) diffuse reflectance spectroscopy,PXRD and fluorescent lifetime *** activated product of 1 was prepared by heating at 255℃ under constant pressure and used to photo-catalytically degrade *** 1 and the activated one have good photocatalytic degradation performance for TCT with degradation rates of 84.29% and 96.07%,*** photocatalytic mechanisms were discovered by UV-Vis diffuse reflectance spectroscopy and radical trap *** Tb-organic framework might be an excellent multifunctional fluorescent sensor and a good photocatalytic agent for TCT degradation in the future.

关键词： Tb-organic network Fluorescent sensing Photocatalytic degradation Rare earths

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桃红四物汤治疗带状疱疹后遗神经痛疗效及对Th1/Th2细胞因子的变化研究

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中华中医药学刊 2024年第2期42卷 60-63页

作者：杨小珍林道强李仕妹王春晓陈之虎琼海市中医院海南琼海571400

目的研究桃红四物汤治疗带状疱疹后遗神经痛的疗效及对辅助性T细胞1/辅助性T细胞2(Helper T cell 1,Th1/Helper T cell 2,Th2)细胞因子的变化影响。方法选取琼海市中医院内二科2021年1月—2022年6月收治的78例带状疱疹后遗神经痛患者为... 详细信息

目的研究桃红四物汤治疗带状疱疹后遗神经痛的疗效及对辅助性T细胞1/辅助性T细胞2(Helper T cell 1,Th1/Helper T cell 2,Th2)细胞因子的变化影响。方法选取琼海市中医院内二科2021年1月—2022年6月收治的78例带状疱疹后遗神经痛患者为对象,采用随机数字表法分为常规组(营养神经、止痛等常规治疗)和汤剂组(常规治疗联合桃红四物汤)。比较治疗前、治疗8周后疼痛介质、Th1/Th2细胞及疼痛评分、匹兹堡睡眠质量指数(Pittsburgh Sleep Quality Index,PSQI)评分的差异。结果汤剂组总有效率为92.31%(36/39),高于常规组的74.36%(29/39),差异具有统计学意义(P0.05)。与治疗前比较,两组β-内啡肽(β-Endorphin,β-EP)、5-羟色胺(5-hydroxytryptamine,5-HT)、白细胞介素-2(Interleukin-2,IL-2)治疗后升高,且汤剂组治疗后更高(P0.05)。与治疗前比较,两组疼痛评分、PSQI评分下降,且汤剂组治疗后更低(P<0.05)。结论桃红四物汤治疗带状疱疹后遗神经痛可调节β-EP、5-HT、Th1/Th2细胞因子的表达水平,减轻疼痛程度,改善睡眠质量。

关键词：桃红四物汤带状疱疹后遗神经痛 5-羟色胺疼痛睡眠质量

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Late Quaternary terrigenous sedimentation in the Western Arctic Ocean as exemplified by a sedimentary record from the Alpha Ridge

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Advances in Polar Science 2011年第4期22卷 215-222页

作者： LIU Weinan WANG Rujian chen Jianfang chenG Zhenbo chen zhihu SUN Yechen State Key Laboratory of Marine Geology Tongji University Shanghai 200092 China The Second Institute of Oceanography SOA Hangzhou 310012 China The First Institute of Oceanography SOA Qingdao 266062 China

Terrigenous components in sediment core B84A from the Alpha Ridge, Western Arctic Ocean, have been investigated to reconstruct Mid to Late Quaternary variations in sedimentation, provenance, and related climate changes. The core stratigraphy, evaluated by a combination of variations in Mn content, color cycles, foraminiferal abundance, and lithological correlation, extends back to estimated Marine Isotope Stage 12. Twelve Ice Rafted Detritus （IRD, 〉250 ttm） events were identified and interpreted to mostly occur during deglaciation. The Canadian Arctic, which was covered by ice sheets during glacial periods, is suggested to be the major source region. The IRD events likely indicate the collapses of ice sheets, possibly in response to abrupt climate changes. Grain size analysis of B84A indicates sedimentologically sensitive components in core B84A in the 4 9 #m and 19 53/~m silt subfractions, which are inferred to be mainly transported by currents and sea ice, respectively. Down core variability of these two fractions may indicate changes in ice drift and current strength. In accordance with previous studies in the central Arctic Ocean, the average sedimentation rate in core B84A is about 0.4 ***-1. Compared with the relatively high sedimentation rates on the margins, sedimentation in the central Arctic Ocean is limited by sea ice cover and the correspondingly low bioproductivity, as well as the long distance from source regions of terrigenous sediment.

关键词： IRD event terrigenous component sedimentation rate Arctic Ocean Alpha Ridge Quaternary

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The Effect of Death Anxiety on Older Adults' Vulnerability to Fraud: The Moderating Role of Mental Simulation

The Effect of Death Anxiety on Older Adults' Vulnerability t...

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第二十五届全国心理学学术会议

作者： zhihu chen Jing Wen Jingjin Shao Chun Gou Centre for Mental Health Education Southwest University Chongqing 400715 Centre for Mental Health Education Southwest University Chongqing 400715 Faculty of Psychology S

Fraud in older adult has become a serious public social problem that is currently of widespread concern in countries around the world. However, most of the fraud victims are unwilling to actively report their fraud experiences, and fraud vulnerability can help to predict the likelihood that an individual will be easily defrauded in some real fraud situation in the future. Death anxiety arousal is one of the most common fraud tactics used in the older adults, considering that death anxiety is more likely to be felt when in older age than ***, the relationship between death anxiety and the vulnerability to fraud in old age still lacks empirical support. Due to the weakened emotional regulation and cognitive processing ability, older adults are hardly able to make a comprehensive and rational understanding of the fraud, and death anxiety may further increase the vulnerability to fraud. Secondly, older adults are not passively submissive to the scammer, but affected by their self-control, which ultimately determines whether they will fall into the scam. It was found that mental simulation,as an effective self-regulation mechanism, can effectively reduce consumers' irrational consumption ***, it may play an important role in reducing the vulnerability of the older adults to fraud. This study used two experiments to examine the effects of death anxiety on older adults' vulnerability to fraud, as well as the moderating role of mental simulation. Study 1 used a mortality salience paradigm to examine whether mortality salience could significantly increase older adults' vulnerability to fraud(i.e., advertisement credibility scores and purchase intention scores). Study 2 further manipulated the moderating variable of mental simulation, which was divided into process simulation(i.e., imagining the detailed process of purchasing goods), upward outcome simulation(i.e., imagining possible positive outcomes after purchasing), and downward outcome simul

关键词： older adults vulnerability to fraud death anxiety mental simulation

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关于高中语文诗歌鉴赏题的答题技巧分析

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天津教育 2020年第30期 179-180页

作者：陈志虎甘肃省民乐县第一中学

高中生在学习时应进一步提高自己的诗歌鉴赏水平,在学习中可结合教师对课本中古诗文的讲述,在答题时运用教师教的答题技巧去答题,使自己的诗歌鉴赏能力得到大幅提升。基于此,本文对高中语文诗歌鉴赏题的解题技巧展开详细介绍。

关键词：高中语文诗歌鉴赏题答题方法

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货币政策对房地产价格的动态影响分析

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商业时代 2011年第2期 56-57页

作者：胡军燕陈智辉华南理工大学经济与贸易学院

本文通过对我国2008～2009年货币政策相关数据和房地产价格的关系进行协整分析、因果关系检验与脉冲反应函数,来验证利率和货币供应量等相关货币政策因素对房价的动态影响,最后提出相应的对策与建议。

关键词：货币政策房地产市场影响对策与建议

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Transfer Ionization Cross-sections in Ar Ions on Neon Collisions

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IMP & HIRFL Annual Report 2003年 92-93页

作者： Ma Xinwen, Liu Heiping, chen Ximeng, Yang zhihu, Shen Zhiyong Wang Youde, Yu Deyang, Cai Xiaohong and Liu ZhaoyuanDepartment of Physics, Lanzhou university, Lanzhou.

We measured the charge exchange cross-sections in collisions of Arq+(q=8, 9, 11, 12) on Ne atoms at low impact energies from 80 keV to 240 keV, and obtained a set of cross-section data. In order to understand the charge exchange processes, we combined the Molecular Classical over-Barrier Model (MCBM) developed by Niehaus with auto-ionization and electron evaporation of multiply excited states. This was described in detail

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膝骨关节炎合并化脓性关节炎患者感染控制后行全膝关节置换术的疗效观察

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新乡医学院学报 2022年第4期39卷 358-361页

作者：杨勇郭庆华陈志辉新乡市第一人民医院关节外科河南新乡453000

目的探讨膝骨关节炎合并化脓性关节炎患者感染控制后行全膝关节置换术(TKA)的临床治疗效果。方法选择2012年1月至2017年6月新乡市第一人民医院关节外科收治的12例膝骨关节炎合并化脓性关节炎患者为研究对象。患者给予开放清创联合敏感... 详细信息

目的探讨膝骨关节炎合并化脓性关节炎患者感染控制后行全膝关节置换术(TKA)的临床治疗效果。方法选择2012年1月至2017年6月新乡市第一人民医院关节外科收治的12例膝骨关节炎合并化脓性关节炎患者为研究对象。患者给予开放清创联合敏感抗生素骨水泥珠链置入方法治疗膝关节化脓性感染,于清创术后3 d及1、2、6周和2、3个月时行血常规、红细胞沉降率(ESR)及C-反应蛋白(CRP)等炎症指标检测。连续3个月ESR、CRP及血常规结果基本正常,2次关节液培养均阴性后行TKA手术。TKA术后给予患者抗感染治疗。记录患者清创术前后白细胞计数(WBC)、中性粒细胞百分比(Neu%)、ESR、CRP等指标变化情况;采用纽约特种外科医院(HSS)膝关节评分评估患者行TKA手术前后膝关节功能;应用视觉模拟评分(VAS)评估患者TKA手术前后膝关节疼痛程度;观察患者的临床疗效。结果患者TKA术后3个月WBC、Neu%、CRP及ESR均显著低于清创术前(P<0.05)。患者TKA术后的VAS评分显著低于清创术前,HSS评分显著高于清创术前,膝关节活动度显著优于清创术前(P<0.05)。所有患者随访10~56个月,TKA术后11例患者切口Ⅰ期愈合,1例换药后Ⅱ期愈合,均无皮肤坏死,无血管及神经损伤,无假体周围骨折、血栓形成等并发症。术后复查X线片显示,下肢力线均纠正,无内、外翻畸形,无假体松动。1例患者术后出现膝前痛,予以依托考昔片治疗,于术后3个月疼痛逐渐缓解。1例患者术后功能锻炼配合欠佳,出现膝关节僵硬,经麻醉后再次手法松解,膝关节活动度恢复。结论对膝骨关节炎合并化脓性关节炎患者,早期进行彻底清创,置入敏感抗生素骨水泥珠链可有效控制感染,并可常规行膝关节置换,术后膝关节功能恢复良好。

关键词：膝骨关节炎化脓感染抗生素骨水泥珠链人工膝关节置换

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轧机工作辊平衡缸端盖及密封圈的在线更换

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山东冶金 2019年第2期41卷 73-74页

作者：陈知虎南京梅山冶金建筑安装有限公司设备分公司江苏南京210039

粗轧R2轧机工作辊平衡缸使用一段时间后出现密封圈损坏、漏油等故障。分析原因是因工作辊的弹性变形移动、轧制力变化以及工作环境等引起的密封圈损坏漏油。通过自制龙门架专用工装,制定回装操作流程,提高了密封圈使用周期,避免了重复... 详细信息

粗轧R2轧机工作辊平衡缸使用一段时间后出现密封圈损坏、漏油等故障。分析原因是因工作辊的弹性变形移动、轧制力变化以及工作环境等引起的密封圈损坏漏油。通过自制龙门架专用工装,制定回装操作流程,提高了密封圈使用周期,避免了重复作业。

关键词：轧机工作辊平衡缸密封圈龙门架

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X-ray Spectra Induced by 40Ar17+ Interacting with Au Surface

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IMP & HIRFL Annual Report 2005年 120-121页

作者： Zhang Xiaoan, Xiao Guoqing, Zhao Yongtao, Yang zhihu and chen Ximeng Department of Physics, Xianyang Normal University, Xianyang. Department of Modern Physics, Lanzhou University, Lanzhou.

When a highly charged ion with many inner shell holes is approaching to a metallic surface, the conducting -band electrons in the metal can resonantly transfer into the high orbits of the projectile at a large distance. In this way, the ion could be temporarily neutralized to form a hollow atom with outer shell occupied and inner shells empty. The hollow atoms may de-excite by auto ionization, Auger electron emission and cascade radioactive X-rays. At the very moment when the projectile reaching the surface, its outer shell electrons will be partly peeled off, however the holes in the inner-most shell could still survive for a

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