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介入治疗在中晚期肝癌患者中的应用效果

中国城乡企业卫生 2024年第2期39卷 112-114页

作者：孙妍妍王军滕州市中心人民医院感染病科山东滕州277500

目的研究对中晚期肝癌患者实施介入治疗效果,为临床提供借鉴经验。方法选取2019年5月—2022年5月在滕州市中心人民医院受治疗的80例中晚期肝癌患者作为此次研究对象,采用随机数字表法分为常规治疗组和介入治疗组各40例。常规治疗组患者... 详细信息

目的研究对中晚期肝癌患者实施介入治疗效果,为临床提供借鉴经验。方法选取2019年5月—2022年5月在滕州市中心人民医院受治疗的80例中晚期肝癌患者作为此次研究对象,采用随机数字表法分为常规治疗组和介入治疗组各40例。常规治疗组患者实施常规药物治疗,介入治疗组采取介入治疗。比较两组患者临床疗效、治疗前后肝功能指标(包括ALT、TBIL、AFP和ALB)以及治疗期间并发症发生率。结果介入治疗组治疗总有效率为95.00%,高于常规治疗组的75.00%,差异有统计学意义(χ^(2)=6.275,P0.05);治疗后,两组肝功能各项指标优于治疗前,且介入治疗组肝功能各项指标优于常规治疗组,差异均有统计学意义(P<0.05)。介入治疗组并发症发生率为7.50%,明显低于常规治疗组的27.50%,差异有统计学意义(χ^(2)=5.541,P<0.05)。结论相较于常规药物治疗而言,对中晚期肝癌患者实施介入治疗的效果较好,治疗有效率更高,肝功能指标改善程度更好,并发症发生率更低,具有较高的临床应用价值。

关键词：介入治疗肝癌治疗效果

维持性血液透析患者发生动脉硬化的危险因素及防治进展

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中国血液净化 2024年第1期23卷 46-49页

作者：胡清芳孙艳艳山西医科大学第一临床医学院太原030001 山西医科大学第一医院肾内科太原030001

动脉硬化是一种严重、缓慢发展的血管病变,近年来在终末期肾病(end stage renal disease,ESRD)患者中越来越常见,它会引发患者心脑血管等疾病进展从而导致死亡,对患者的预后具有重要影响。由于血液透析患者合并动脉硬化的临床表现往往... 详细信息

动脉硬化是一种严重、缓慢发展的血管病变,近年来在终末期肾病(end stage renal disease,ESRD)患者中越来越常见,它会引发患者心脑血管等疾病进展从而导致死亡,对患者的预后具有重要影响。由于血液透析患者合并动脉硬化的临床表现往往比较隐匿,不容易发现。本文就维持性血液透析患者发生动脉硬化的危险因素及防治进行介绍,以期减少动脉硬化的发生,改善患者预后。

关键词：动脉硬化维持性血液透析危险因素心血管疾病

Towards Data-Driving Multi-View Evaluation Framework for Scratch

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Tsinghua Science and Technology 2024年第2期29卷 517-528页

作者： Xiaolin Chai yan sun yan Gao Department of Computer Science Beijing University of Posts and TelecommunicationBeijing 100876China Intellectual Property Institute Shandong Polytechnic CollegeJining 272067China

As one of the most popular visual programming languages,Scratch has a lot of evaluation around *** evaluation can help programmers understand their projects *** the same time,it can also provide a reference for them to browse other projects in the online *** of the existing evaluations on Scratch are carried from three perspectives:Computational Thinking(CT)ability,visual presentation aesthetics,and code *** them,the assessment of CT and code quality is mainly carried out from the program script,while the evaluation of visual aesthetics is analyzed from the perspective of image sequences generated by project *** single-view evaluation focuses on the performance of a program in a certain aspect and is *** this paper,we propose a multi-view evaluation framework to integrate various evaluations using different *** quantitatively analyze the assessment of different views driven by *** with overall evaluations that represent human opinions,we analyze their differences and *** experiments,we determine the weights of different integration policies,the proposed multi-view evaluation method can generate evaluation results similar to human opinions.

关键词： Scratch Computational Thinking(CT) visual aesthetic static analysis integration policy machine learning

Rational surface charge engineering of haloalkane dehalogenase for boosting the enzymatic performance in organic solvent solutions

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Chinese Journal of Chemical Engineering 2024年第1期65卷 276-285页

作者： Yin Wu yan sun Department of Biochemical Engineering School of Chemical Engineering and Technology and Key Laboratory of Systems Bioengineering and Frontiers Science Center for Synthetic Biology(Ministry of Education)Tianjin UniversityTianjin 300350China

Biocatalysis in organic solvents(OSs)has numerous important applications,but native enzymes in OSs often exhibit limited catalytic ***,we proposed a computation-aided surface charge engineering strategy to improve the catalytic performance of haloalkane dehalogenase DhaA in OSs based on the energetic analysis of substrate binding to the DhaA *** variants with enhanced OS resistance were obtained by replacing negative charged residues on the surface with positive charged residue(Arg).Particularly,a four-substitution variant E16R/E93R/E121R/E257R exhibited the best catalytic performance(five-fold improvement in OS resistance and seven-fold half-life increase in 40%(vol)dimethylsulfoxide).As a result,the overall catalytic performance of the variant could be at least 26 times higher than the wild-type *** spectroscopy and molecular dynamics simulation studies revealed that the residue substitution mainly enhanced OS resistance from four aspects:(a)improved the overall structural stability,(b)increased the hydrophobicity of the local microenvironment around the catalytic triad,(c)enriched the hydrophobic substrate around the enzyme molecule,and(d)lowered the contact frequency between OS molecules and the catalytic *** findings validate that computationaided surface charge engineering is an effective and ingenious rational strategy for tailoring enzyme performance in OSs.

关键词： Surface charge engineering Organic solvent resistance Molecular dynamics simulation Haloalkane dehalogenase

大豆细胞质雄性不育系及其恢复系的比较转录组分析

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生物技术通报 2024年第7期40卷 137-149页

作者：高萌萌赵天宇焦馨悦林春晶关哲允丁孝羊孙妍妍张春宝吉林农业大学农学院长春130118 吉林省农业科学院大豆研究所长春130033 农业农村部杂交大豆育种重点实验室长春130033

【目的】“三系”法是选育杂交大豆的主要途径,但恢复系中仅有少数大豆恢复基因被克隆,为挖掘更多新恢复基因,从而促进多基因聚合的强恢复系选育,提高杂种F1的育性稳定性。【方法】以大豆细胞质雄性不育系JLCMS5A和其恢复系JLR2为材料,... 详细信息

【目的】“三系”法是选育杂交大豆的主要途径,但恢复系中仅有少数大豆恢复基因被克隆,为挖掘更多新恢复基因,从而促进多基因聚合的强恢复系选育,提高杂种F1的育性稳定性。【方法】以大豆细胞质雄性不育系JLCMS5A和其恢复系JLR2为材料,采用转录组测序技术分析JLCMS5A和JLR2花蕾不同时期的转录水平变化,挖掘调控育性恢复和花蕾发育进程的相关基因和通路。进一步对具有恢复基因特征编码PPR(pentatricopeptide repeat)蛋白的差异表达基因(differentially expressed genes,DEGs)进行基因注释、序列差异分析、RT-qPCR验证、系统进化分析及蛋白结构预测,挖掘育性恢复相关基因。【结果】转录组测序鉴定到17181个DEGs,其中有3856个DEGs与发育时期相关,2808个DEGs与育性相关。GO(geneontology)功能注释表明,与育性相关的DEGs主要富集在ADP结合、核酸结合转录因子活性和蛋白激酶活性等功能类别,与发育时期相关的DEGs主要富集在蛋白质异源二聚化活性、DNA复制和DNA结合等功能类别。KEGG(kyoto encyclopedia of genes and genomes)富集分析表明,育性相关DEGs主要参与内质网蛋白质加工、葡萄糖苷酸生物合成和植物激素信号转导等与蛋白质、糖类和信号转导密切相关的代谢通路,发育时期相关DEGs主要参与DNA复制、错配修复、淀粉和蔗糖代谢等与细胞分裂和能量物质降解密切相关的代谢通路。育性恢复候选基因分析发现,JLR2中的Glyma.09G176400可能在调控大豆细胞质雄性不育育性恢复过程中起到一定作用。【结论】共鉴定到3856个与发育时期相关的DEGs,2808个与育性相关的DEGs;鉴定出具有恢复基因特征编码PPR蛋白的DEGs15个;挖掘了1个育性恢复相关基因Glyma.09G176400。

关键词：大豆细胞质雄性不育育性恢复基因转录组测序差异表达基因

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Particles attrition of binary mixtures in the coal-fueled chemical looping system based on fluidized bed

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Particuology 2024年第3期86卷 281-290页

作者： Heyu Li Zhe sun yan Cao Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou 510640China University of Chinese Academy of Sciences Bejing 100049China CAS Key Laboratory of Renewable Energy Guangzhou 510640China Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development Guangzhou 510640China College of Chemistry and Chemical Engineering Anhui UniversityHefei230601China

In this work,a reactive air jet attrition device with auto-recording and collection of elutriated fines was *** established insights into the physiochemical interaction and further correlated attrition behaviors between char and oxygen carriers under various operation *** attrition rate increased by over 110% upon the introduced CO_(2),which brought in the significant effect of thermo-chemical stress,similarly in effects of the increased char addition ratio and the decreased sizes of char or hematite in different *** the char-hematite co-attrition process,the elutriated carbon loss of char with poor mechanical strength was found to be over 10%,while the reactive iron loss of hematite was found to be 6.3%,and was enriched in elutriated *** reaction-derived thermochemical stress and the collision-derived mechanical stress jointly controls the particle attrition during the cyclic transformation of oxygen carrier particles in coal-fueled chemical looping fluidization,especially sig-nificant in its reduction stage.

关键词： Attrition Binary species Chemical looping Oxygen carrier CO_(2)capture

Ytterbium modified birnessite MnO_(2) for improving deep oxidation of toluene

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Journal of Rare Earths 2024年第4期42卷 668-675页

作者： Linjiang sun yan Cheng Yujie Liu Can Yi Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengdu611756China

A series of rare earth metals modified birnessite manganese dioxides(RE-Mn)was synthesized by hydrothermal method and their catalytic degradation of toluene was ***-Mn shows the best toluene oxidation activity with the conversion of T50%and T99%at 196 and 226℃,*** physiochemical characterizations identified that the high catalytic performance and excellent stability of Yb-Mn are mainly associated with its higher molar ratios of Mn^(4+)/Mn^(3+),more lattice oxygen(Olatt),and better mobility of surface adsorbed oxygen(O_(ads)).Moreover,it is confirmed that introduction of Yb into birnessite MnO_(2) facilitates the production of acetic acid at lower *** results can aid the design of high-efficiency manganese oxide catalysts for the catalytic combustion of VOCs.

关键词： Manganese oxide Rare earth metal doping Toluene Catalytic combustion

Bioinspired designs in active metal-based batteries

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Nano Research 2024年第2期17卷 587-601页

作者： Fan Zhang Ting Liao Cheng yan Ziqi sun School of Chemistry and Physics Queensland University of TechnologyGeorge StreetBrisbaneQLD 4000Australia School of Mechanical Medical and Process Engineering Queensland University of TechnologyGeorge StreetBrisbaneQLD 4000Australia QUT Centre for Materials Science Queensland University of TechnologyGeorge StreetBrisbaneQLD 4000Australia

Active metal-based batteries are drawing increased attention because of their inherent high energy density and specific *** grand challenges,such as dendrite growth,electrode degradation,rapid performance fading,etc.,have limited their practical ***,which involves taking cues from the structures and functions of the natural world,can lead to a wealth of conceptually fresh approaches to regulator the metal ion transportation to achieve a dendrite-free metal plating,thwart the side-reaction reactions,and retard the structural distortions,for a more reliable and secure operation of active metal-based *** this review,we concentrate on the fabrication and application of bioinspired designs in active metal-based batteries with enhanced performance,along with discussion on the challenges and opportunities associated with this promising *** anticipate that this review can offer some insights into the development of functional materials by learning from nature and provide some approaches for the innovations of either the battery structures or the energy materials for metal-based batteries.

关键词： bioinspired materials energy storage devices metal-based batteries

Resilient performance of self-centering hybrid rocking walls with curved interface under pseudo-static loading

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Earthquake Engineering and Engineering Vibration 2024年第1期23卷 65-85页

作者： Su Xing yan Shi sun Xianglei Wang Tao School of Civil Engineering Shenyang Jianzhu UniversityShenyang 110168China PetroChina East China Design Institute Co. Ltd.Qingdao 266000China Qingdao Country Garden Bolin Real Estate Co. Ltd.Qingdao 266100China

Frame and rocking wall(FRW)structures have excellent resilient performance during ***,the concrete at interfacial corners of rocking walls(RWs)is easily crushed due to local extreme compression during the rocking *** innovative RW with a curved interface is proposed to prevent interfacial corners from producing local damage,enhancing its earthquake resilient performance(ERP).The precast wall panel with a curved interface is assembled into an integral self-centering hybrid rocking wall(SCRW)by two post-tensioned unbonded prestressed ***,two ordinary energy dissipation steel rebars and two shear reinforcements are arranged to increase the energy dissipation capacity and lateral *** SCRW specimens and one monolithic reinforced concrete(RC)shear wall(SW)were tested under pseudo-static loading to compare the ERPs of the proposed SCRW and the SW,focusing on studying the effect of the curved interface on the *** key resilient performance of rocking effects,failure modes,and hysteretic properties of the SCRW were *** results show that nonlinear deformations of the SCRW are concentrated along the interface between the SCRW and the foundation,avoiding damage within the *** restoring force provided by the prestressed tendons can effectively realize self-centering capacity with small residual deformation,and the resilient performance of the SCRW is better than that of monolithic *** addition,the curved interface of the SCRW makes the rocking center change and move inward,partially relieving the stress concentration and crush of *** rocking range of the rocking center is about 41.4%of the width of the SCRW.

关键词： self-centering hybrid rocking wall(SCRW) monolithic shear wall(SW) earthquake resilient performance(ERP) curved interface rocking center