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Immobilizing Triphenylamine with Photoredox Inert Sr^(2+)Forming Sr-MOF with Controlled Electron Migration for Photocatalytic Oxidation of Thiols to Disulfides

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Chinese Journal of Chemistry 2024年第10期42卷 1093-1099页

作者： Ying-xia Wang Fang Zheng Dong-xia song Bao-Yue Niu Lu-Qian Deng xian-Ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) Schoolof Chemistry and Materials ScienceShanxi Normal UniversityTaiyuanShanxi 030006China Key Laboratory of Interface Science and Engineering in Advanced Material(Ministry of Education) College of ChemistryTaiyuan University of TechnologyTaiyuanShanxi 030024China

The photocatalytic oxidative coupling of thiols is one of the most popular methods to synthesize the disulfides.Triphenylamine and its derivatives(TPAs)are promising for the above reaction,but suffer from the easy polymerization and difficult separation.To overcome these obstacles while controlling the photogenerated electrons transfer directly to target substrates,herein,we constructed one TPA-based metal-organic framework(MOF),(Me_(2)NH_(2))[Sr(TCBPA)]·DMA·3H_(2)O(1),by direct self-assembly of tris(4′-carboxybiphenyl)amine(H_(3)TCBPA)and photoredox inert strontium ion(Sr^(2+)).DFT calculations revealed that the valence band maximum(VBM)and the conduction band minimum(CBM)are mainly located on TCBPA^(3-),successfully inhibiting the undesirable electron migration to metal nodes.Experimental results indicated that 1 displays superior performance than homogeneous H_(3)TCBPA,which may result from the abundant π…π and C—H…π interactions between the well-arranged TCBPA^(3-)and the build-in electric field between the anionic framework and the Me_(2)NH^(2+).This work highlights that immobilizing TPAs into MOFs is one promising approach to designing heterogeneous photocatalysts for the synthesis of disulfides by oxidative coupling of thiols.

关键词： Triphenylamine Metal-organic frameworks Strontium Photooxidation Thiols Disulfides

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Unexplained fetal tachycardia:A case report

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World Journal of Clinical Cases 2024年第9期12卷 1698-1703页

作者： Hui Wang Run-Zi Duan Xin-Jiu Bai Bing-Ting Zhang Jie Wang Wen-xia song Department of Nutrition Changzhi Maternal and Child Health Care Hospital Affiliated to Changzhi Medical CollegeChangzhi 046000Shanxi ProvinceChina Department of Obstetrics Changzhi Maternal and Child Health Care Hospital Affiliated to Changzhi Medical CollegeChangzhi 046000Shanxi ProvinceChina Department of Gynaecology Changzhi Maternal and Child Health Care Hospital Affiliated to Changzhi Medical CollegeChangzhi 046000Shanxi ProvinceChina Department of Medical Genetic Changzhi Maternal and Child Health Care Hospital Affiliated to Changzhi Medical CollegeChangzhi 046011Shanxi ProvinceChina

BACKGROUND This study aimed to explore the possible etiology and treatment of severe fetal tachycardia in the absence of organic disease and provide a reference for clinical management of severe fetal tachycardia.CASE SUMMARY A 29-year-old pregnant woman,with a gravidity 1 parity 0,presented with a fetal heart rate(FHR)of 243 beats per minute during a routine antenatal examination at 31+2 wk of gestation.Before termination of pregnancy at 38 wk of gestation,the FHR repeatedly showed serious abnormalities,lasting more than 30 min.However,the pregnant woman and the fetus had no clinical symptoms,and repeated examination revealed no organic lesions.The mother and the baby were regularly followed up.CONCLUSION This was a case of severe fetal tachycardia with no organic lesions and management based on clinical experience.

关键词： Fetal heart rate disorder Fetal tachycardia Severe tachycardia Case report

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Anaerobic co-digestion of thermo-alkaline pretreated microalgae and sewage sludge: Methane potential and microbial community

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Journal of Environmental Sciences 2023年第5期127卷 133-142页

作者： Jiaqi Fu Bing Yan Shuanglin Gui Yinxuan Fu song xia Institute of Energy Research Jiangxi Academy of SciencesNanchang 330096China

To improve methane production from sewage sludge(SS),co-digestion of SS and microalgae(MA)was studied and the application of thermo-alkaline pretreatment to MA was evaluated.The results showed that thermo-alkaline pretreatment at 90℃ for 120 min on MA was the optimum pretreatment condition.Furthermore,when the volatile solids(VS)ratio of SS and MA was 1:2,the methane yield reached maximum(368.94 mL/g VS).Fourier transform infrared(FT-IR)and thermogravimetric analysis confirmed the synergetic effects of thermoalkaline pretreated MA on its co-digestion with SS.The analyses of microbial community indicated that Methanobacterium and Methanosarcina were the dominant methanogens during the co-digestion process.However,the relative abundance of Methanosarcina in thermoalkaline pretreated groups was higher compared to unpretreated groups.The microbial community structure might be affected by thermo-alkaline pretreatment rather than by the MA dosage in the co-digestion.

关键词： Anaerobic co-digestion Thermo-alkaline pretreatment Microalgae Sewage sludge Microbial community

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Gene signatures to therapeutics:Assessing the potential of ivermectin against t(4;14)multiple myeloma

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World Journal of Clinical Oncology 2024年第1期15卷 115-129页

作者： Yang song Hao-Jun Zhang xia song Jie Geng Hong-Yi Li Li-Zhong Zhang Bo Yang Xue-Chun Lu School of Basic Medicine Medical School of Chinese PLABeijing 100853China School of Basic Medicine Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Hematology The Second Medical CentreChinese PLA General HospitalBeijing 100853China

BACKGROUND Multiple myeloma(MM)is a terminal differentiated B-cell tumor disease characterized by clonal proliferation of malignant plasma cells and excessive levels of monoclonal immunoglobulins in the bone marrow.The translocation,(t)(4;14),results in high-risk MM with limited treatment alternatives.Thus,there is an urgent need for identification and validation of potential treatments for this MM subtype.Microarray data and sequencing information from public databases could offer opportunities for the discovery of new diagnostic or therapeutic targets.AIM To elucidate the molecular basis and search for potential effective drugs of t(4;14)MM subtype by employing a comprehensive approach.METHODS The transcriptional signature of t(4;14)MM was sourced from the Gene Expression Omnibus.Two datasets,GSE16558 and GSE116294,which included 17 and 15 t(4;14)MM bone marrow samples,and five and four normal bone marrow samples,respectively.After the differentially expressed genes were identified,the Cytohubba tool was used to screen for hub genes.Then,the hub genes were analyzed using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analysis.Using the STRING database and Cytoscape,protein–protein interaction networks and core targets were identified.Potential small-molecule drugs were identified and validated using the Connectivity Map database and molecular docking analysis,respectively.RESULTS In this study,a total of 258 differentially expressed genes with enriched functions in cancer pathways,namely cytokine receptor interactions,nuclear factor(NF)-κB signaling pathway,lipid metabolism,atherosclerosis,and Hippo signaling pathway,were identified.Ten hub genes(cd45,vcam1,ccl3,cd56,app,cd48,btk,ccr2,cybb,and cxcl12)were identified.Nine drugs,including ivermectin,deforolimus,and isoliquiritigenin,were predicted by the Connectivity Map database to have potential therapeutic effects on t(4;14)MM.In molecular docking,ivermectin showed strong binding affinity to all 10 identified targets,especially cd45 and cybb.Ivermec

关键词： Multiple myeloma Functional enrichment analysis Molecular docking simulation Gene expression profiling Therapeutic target Ivermectin

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大型船舶加筋板结构焊接裂纹在线检测研究

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舰船科学技术 2024年第6期46卷 157-160页

作者：宋敏霞常州大学江苏常州213164

大型船舶加筋板结构焊接若出现裂纹,会降低加筋板结构强度,为船舶航行安全带来不可预估的风险,为此研究大型船舶加筋板结构焊接裂纹在线检测方法。使用有限元软件Ansys,依据船舶加筋板结构参数,对加筋板结构焊接裂纹模态进行模拟,获取... 详细信息

大型船舶加筋板结构焊接若出现裂纹,会降低加筋板结构强度,为船舶航行安全带来不可预估的风险,为此研究大型船舶加筋板结构焊接裂纹在线检测方法。使用有限元软件Ansys,依据船舶加筋板结构参数,对加筋板结构焊接裂纹模态进行模拟,获取大型船舶加筋板结构焊接裂纹模态,依据该模态,使用改进连续小波分解方式从加筋板结构焊接裂纹模态中获取裂纹对应的小波系数,通过获取裂纹模态小波系数突变点,依据该突变点得到加筋板结构焊接裂纹深度、长度、宽度等在线检测结果。实验结果表明,该方法可有效获取船舶加筋板结构焊接裂纹模态,并依据该模态在线检测到船舶加筋板结构焊接裂纹的长度、宽度等,应用效果较佳。

关键词：大型船舶加筋板结构焊接裂纹在线检测振动模态小波变换

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住院期间俯卧位护理对早产儿生理指标影响的研究进展

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中华新生儿科杂志（中英文） 2024年第2期39卷 124-128页

作者：李冬梨宋霞广东省妇幼保健院新生儿科广州510010

临床上早产儿普遍采取仰卧位,然而大量研究表明,与仰卧位相比,早产儿俯卧位具有多种生理方面的益处。本文主要就俯卧位对早产儿肺功能、呼吸暂停、胃食管反流、胃排空、环境压力调节等方面的影响展开综述。

关键词：早产儿俯卧位肺功能胃食管反流胃排空

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Analysis of choroidal morphology and comparison of imaging findings of subtypes of polypoidal choroidal vasculopathy:a new classification system

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International Journal of Ophthalmology(English edition) 2020年第5期13卷 731-736页

作者： Zi-Yang Liu Bing Li song xia You-Xin Chen Department of Ophthalmology Peking Union Medical College HospitalChinese Academy of Medical SciencesBeijing 100730China Department of Ophthalmology Beijing Friendship HospitalCapital Medical UniversityBeijing 100050China Key Laboratory of Ocular Fundus Diseases Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100730China Department of Ophthalmology Guizhou Provincial People’s HospitalGuiyang 550002Guizhou ProvinceChina

AIM:To classify polypoidal choroidal vasculopathy(PCV)into 2 subtypes based on the subfoveal choroidal thickness(SFCT)and to further evaluate their multimodal image features.METHODS:A retrospective observational case series study.Sixty-four eyes of 64 patients with PCV were enrolled and classified into 2 groups based on SFCT(thick-choroid group/thin-choroid group).Then further analyze the spectrum domain optical coherence tomography(SD-OCT)and indocyanine green angiography(ICGA)differences of the two subtypes.Imaging analysis included measurement of SFCT,maximum vascular diameter ratio(MVDR),choroidal vascularity index(CVI),central macular thickness(CMT),and the presence of pigment epithelial detachment(PED)on SD-OCT.Polypoidal lesions(polyps)number,branching vascular network(BVN)area,greatest linear dimension(GLD),and the choroidal vascular hyperpermeability(CVH)were analyzed by ICGA.RESULTS:The distribution of SFCT was bimodal with two peaks at 195 and 285μm,and a trough at 225μm.The 225μm was taken as the cutoff point for the following classification of thick/thin choroid groups.The PCV eyes in the thick-choroid group presented with greater MVDR,CVI within 3 and 6 mm of the fovea,but lower CMT,less PED,small PED diameters on SD-OCT scans,and fewer polyps,smaller BVN and GLD,but more frequency of CVH on ICGA.CONCLUSION:The SFCT at 225μm can be used as a readily available indicator for the classification of PCV subtypes.The thick-choroid group presents much apparent enlargement of the choroidal layer and vasculature expansion,which indicates different pathogenesis of the two subtypes.

关键词： polypoidal choroidal vasculopathy spectral-domain optical coherence tomography indocyanine green angiography subfoveal choroidal thickness

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健康城市视角下儿童友好型城市更新策略研究——以昆明市翠湖周边地段为例

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智能建筑与智慧城市 2024年第3期 61-63页

作者：夏松西南交通大学

在健康城市新观念下开展以儿童健康为导向的旧城更新是当今时代的迫切需求。文章以翠湖周边地段为例,针对儿童健康问题,基于盖迪斯的规划分析理论,对规划地块进行深入分析,从环境整治、公共空间建设、建筑更新改造、历史文化资源挖掘出... 详细信息

在健康城市新观念下开展以儿童健康为导向的旧城更新是当今时代的迫切需求。文章以翠湖周边地段为例,针对儿童健康问题,基于盖迪斯的规划分析理论,对规划地块进行深入分析,从环境整治、公共空间建设、建筑更新改造、历史文化资源挖掘出发,挖掘健康视角下儿童友好型城市更新改造策略,寻求一种普适性的儿童友好旧城更新手段。

关键词：健康城市儿童友好城市更新历史地段

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Roles of various Ni species on TiO2 in enhancing photocatalytic H2 evolution

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Frontiers in Energy 2019年第4期13卷 684-690页

作者： xiaoping CHEN Jihai XIONG Jinming SHI song xia Shuanglin GUI Wenfeng SHANGGUAN Institute of Energy Research Jiangxi Academy of SciencesNanchang 330096China Research Center for Combustion and Environment Technology Shanghai Jiao Tong University Shanghai 200240China

Low-cost nickels can be used as cocatalyst to improve the performance of photocatalysts,which may be promising materials applied in the field of photocatalytic water splitting.In this study,different nickel species Ni,Ni(OH)2,NiO,NiOx,and NiS are used to modified titanium dioxide(P25)to investigate their roles on the photocatalytic hydrogen evolution activities.UV-visible,X-ray diffraction(XRD),Brunner-Emmet-Teller(BET)measurements,transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS)analysis etc.are employed to characterize the physical and chemical properties of catalysts.The results indicate that all the nickel species can improve the photocatalytic hydrogen production activity of P25.The P25 modified with NiOx and NiS has more superior photocatalytic hydrogen evolution activities than those modified with other nickel species.The reason for this is that NiOx and NiS can form p-n junctions with P25 respectively.In addition,NiOx can be selectively deposited on the active sites of P25 via in situ the photodeposition method and NiS is beneficial for H+reacting with photo-excited electrons.

关键词： nickel species Ti02 photocatalytic hydrogen evolution

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思维可见的小学数学探究性作业设计与实施

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教学与管理 2024年第5期 64-67页

作者：宋霞娟王东平江苏省宿迁市宿城区教师发展中心江苏省宿迁市实验小学

促进学生思维发展是数学学科的核心使命,也是落实数学核心素养的关键所在。作业作为教学的重要环节,既是对课堂知识和内容进行巩固和拓展的重要手段,也是培养学生数学思维能力的重要载体。以小学数学探究性作业为载体,让学生在“画”数... 详细信息

促进学生思维发展是数学学科的核心使命,也是落实数学核心素养的关键所在。作业作为教学的重要环节,既是对课堂知识和内容进行巩固和拓展的重要手段,也是培养学生数学思维能力的重要载体。以小学数学探究性作业为载体,让学生在“画”数学、“说”数学、“做”数学的过程中,将隐藏的思路显性化、零散的知识系统化、抽象的模型具体化,可以实现学生思维可见,促进学生思维发展。

关键词：小学数学探究性作业 “画”数学 “说”数学 “做”数学

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