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Effect of Humidity on Formaldehyde Oxidation over Ce_(0.8)Zr_(0.2)O_(y)Catalyst

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1108-1115页

作者： TANG Ruijiu YANG Zonglin liu Xiang JIA lijuan WANG Fang DUAN Kaijiao liu Tiancheng College of Chemistry and Environment Yunnan Minzu UniversityTechnology Innovation Team of Green Purification Technology for Industrial Waste GasEducation Department of YunnanKey Laboratory of Environmental Functional Materials of Yunnan Province Education DepartmentKunming 650504China

In the preparation of a series of Ce_(0.8)Zr_(0.2)O_(y)catalysts catalyzing the removal of formaldehyde,BET,H2-TPR,IR,SEM,XPS,and XRD were used to characterize the catalyst,and the influence of humidity on the catalyst activity was studied by adjusting the humidity during the *** experimental results showed that the formaldehyde removal rate increased with the increase of *** the humidity was higher than 50%,the formaldehyde removal rate decreased by 3%over that when the humidity was 50%.The characterization results showed that humidity facilitated the activation of oxygen and the formation of hydroxyl groups,which both promoted the formation and oxidative decomposition of intermediates and prevented the deposition of intermediates that clogged the pores,allowing more formaldehyde to be adsorbed and oxidized,which increased the activity of the *** provides new mechanistic evidence for the oxidation of formaldehyde and helps in the development of relatively low-cost materials for formaldehyde purification.

关键词： formaldehyde humidity Ce_(0.8)Zr_(0.2)O_(y) catalytic oxidation

Co_(3)S_(4)-pyrolysis lotus fiber flexible textile as a hybrid electrocatalyst for overall water splitting

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Journal of Energy Chemistry 2024年第2期89卷 336-344,I0008页

作者： Qiulan Zhou Zhen liu Xuxu Wang Yaqian Li Xin Qin lijuan Guo Liwei Zhou Weijian Xu Academician Workstation Changsha Medical UniversityChangsha 410219HunanChina College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082HunanChina College of Environmental Science and Engineering Hunan UniversityChangsha 410082HunanChina School of Basic Medicine Changsha Medical UniversityChangsha 410219HunanChina

Electrocatalytic overall water splitting(OWS),a pivotal approach in addressing the global energy crisis,aims to produce hydrogen and ***,most of the catalysts in powder form are adhesively bounding to the electrodes,resulting in catalyst detachment by bubble generation and other uncertain interference,and eventually reducing the OWS *** surmount this challenge,we synthesized a hybrid material of Co_(3)S_(4)-pyrolysis lotus fiber(labeled as Co_(3)S_(4)-p LF)textile by hydrothermal and hightemperature pyrolysis processes for electrocatalytic *** to the natural LF textile exposing the uniformly distributed functional groups(AOH,ANH_(2),etc.)to anchor Co_(3)S_(4)nanoparticles with hierarchical porous structure and outstanding hydrophily,the hybrid Co_(3)S_(4)-p LF catalyst shows low overpotentials at 10 m A cm^(-2)(η_(10,HER)=100 m Vη_(10,OER)=240 mV)alongside prolonged operational stability during electrocatalytic *** calculations reveal that the electron transfer from p LF to Co_(3)S_(4)in the hybrid Co_(3)S_(4)-p LF is beneficial to the electrocatalytic *** work will shed light on the development of nature-inspired carbon-based materials in hybrid electrocatalysts for OWS.

关键词： Overall water splitting Hybrid electrocatalyst Textile Lotus fiber Co_(3)S_(4)nanoparticles

运动引导想象训练对脊髓神经减压术后患者神经病理性疼痛和睡眠障碍的影响

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中国临床护理 2024年第3期16卷 159-162页

作者：刘清宁王彦哲闫春林刘丽娟吕守英韩文莉赵静聊城市第二人民医院山东聊城252600

目的探讨运动引导想象训练对脊髓神经减压术后患者神经病理性疼痛和睡眠障碍的影响。方法选取脊柱外科收治的62例行脊髓神经减压术且存在神经病理性疼痛和睡眠障碍的患者为研究对象,采用随机数字表法将其分为对照组和观察组,各31例。对... 详细信息

目的探讨运动引导想象训练对脊髓神经减压术后患者神经病理性疼痛和睡眠障碍的影响。方法选取脊柱外科收治的62例行脊髓神经减压术且存在神经病理性疼痛和睡眠障碍的患者为研究对象,采用随机数字表法将其分为对照组和观察组,各31例。对照组实施术后常规护理,观察组在对照组基础上进行运动引导想象训练。比较2组神经病理性疼痛程度和睡眠质量。结果2组疼痛评分在时间效应、组间效应及交互效应方面比较,差异均有统计学意义(F时间=429.691,P<0.001;F_(组间)=7.063,P<0.001;F_(交互)=25.634,P<0.001);2组匹兹堡睡眠质量指数量表评分在时间效应、组间效应及交互效应方面比较,差异均有统计学意义(F时间=790.029,P<0.001;F_(组间)=46.914,P<0.001;F_(交互)=180.366,P<0.001)。结论运动引导想象训练可以缓解脊髓神经减压术后患者的神经病理性疼痛和睡眠障碍,值得临床推广应用。

关键词：运动引导想象训练脊髓损伤脊髓神经减压术神经病理性疼痛睡眠障碍

The change of photospheric magnetic field during major solar eruptions

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The change of photospheric magnetic field during major solar...

作者： lijuan liu Sun Yat-sen University

The photospheric magnetic field evolves drastically during major solar eruptions,mainly manifested as increase of the horizontal component of the field in flaring *** causes of this phenomenon still remains in debate."Loop contraction" and "Momentum conservation of the ejecta" are thought to be the two most promising scenarios in explaining the observation.

关键词： The change of photospheric magnetic field during major solar eruptions

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不同贮藏温度对京彩1号西瓜品质的影响

中国农业科技导报 2024年第9期26卷 137-145页

作者：向兰婷宋曙辉刘立娟佘小玲周家华王宝刚常虹张超傅达奇王云香北京市农林科学院农产品加工与食品营养研究所果蔬农产品保鲜与加工北京市重点实验室农业农村部蔬菜产后处理重点实验室北京100097 中国农业大学食品科学与营养工程学院北京100083 北京市延庆区农业科技服务中心北京102100

为探究不同贮藏温度对京彩1号西瓜品质的影响,将京彩1号西瓜果实分别在5、15、25℃温度下贮藏,研究贮藏期间其硬度、失重率、冷害率、可溶性固形物、果胶、纤维素、可溶性糖、有机酸、番茄红素、β-胡萝卜素和维生素C含量的变化。结果表... 详细信息

为探究不同贮藏温度对京彩1号西瓜品质的影响,将京彩1号西瓜果实分别在5、15、25℃温度下贮藏,研究贮藏期间其硬度、失重率、冷害率、可溶性固形物、果胶、纤维素、可溶性糖、有机酸、番茄红素、β-胡萝卜素和维生素C含量的变化。结果表明,随着贮藏时间的延长,京彩1号西瓜果实失重率增加,硬度降低,水溶性果胶含量升高,碱溶性果胶含量降低,维生素C、番茄红素及β-胡萝卜素含量均呈降低趋势,可溶性固形物含量变化较小,纤维素含量呈先降低后升高趋势,而可溶性糖和有机酸含量在不同贮藏温度下呈现不同变化趋势。对不同温度处理比较发现,5℃条件下贮藏可以使西瓜的维生素C及可溶性糖含量保持较高水平,但长期贮藏冷害率较高,且营养物质逐渐损失,可能会导致其失去食用价值和商品价值;15℃条件下贮藏可以较好地维持西瓜果实的水分、有机酸和细胞色素含量,使其具有较好的品质和风味;25℃条件下贮藏,西瓜果实的可溶性糖、有机酸及果胶含量消耗过快,进而造成软腐,丧失原有风味,品质不易保持。以上研究结果为不同条件下西瓜商业化物流贮运提供了参考。

关键词：西瓜贮藏温度品质

Rice OsFLS2-Mediated Perception of Bacterial Flagellins Is Evaded by Xanthomonas oryzae pvs. oryzae and oryzicola

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Molecular Plant 2015年第7期8卷 1024-1037页

作者： Shanzhi Wang Zhe Sun Huiqin Wang lijuan liu Fen Lu Jun Yang Min Zhang Shiyong Zhang Zejian Guo Andrew F. Bent Wenxian Sun Department of Plant Pathology China Agricultural University 2 West Yuanmingyuan Road Haidian District Beijing 100193 China Key Laboratory of Plant Pathology Ministry of Agriculture China Agricultural University Beijing 100193 China Rice Research Institute Shandong Academy of Agricultural Science Jinan 250100 Shandong Province China College of Bioscience and Biotechnology Hunan Agricultural University Changsha 410128 Hunan Province China Department of Plant Pathology University of Wisconsin Madison WI 53706 USA These authors contributed equally to this article.

Bacterial flagellins are often recognized by the receptor kinase FLAGELLIN SENSITIVE2 （FLS2） and activate MAMP-triggered immunity in dicotyledonous plants. However, the capacity of monocotyledonous rice to recognize flagellins of key rice pathogens and its biological relevance remain poorly understood. We demonstrate that ectopically expressed OsFLS2 in Arabidopsis senses the eliciting fig22 peptide and in vitro purified Acidovorax avenae （Aa） flagellin in an expression level-dependent manner, but does not recognize purified flagellins or derivative fig22x~ peptides ofXanthomonas oryzae pvs. oryzae （Xoo） and or- yzicola （Xoc）. Consistently, the fig22 peptide and purified Aa flageUin, but not Xoo/Xoc flagellins, induce various immune responses such as defense gene induction and MAPK activation in rice. Perception of flagellin by rice does induce strong resistance to Xoo infection, as shown after pre-treatment of rice leaves with Aa flagellin. OsFLS2 was found to differ from AtFLS2 in its perception specificities or sensitivities to different fig22 sequences. In addition, post-translational modification of Xoc flagellin was altered by dele- tion of glycosyltransferase-encoding rbfC, but this had little effect on Xoc motility and rpfC mutation did not detectably reduce Xoc virulence on rice. Deletion of flagellin-encoding fliC from Xoo/Xoc blocked swim- ming motility but also did not significantly alter Xoo/Xoc virulence. These results suggest that Xoo/Xoc carry flg22-region amino acid changes that allow motility while evading the ancient flagellin detection sys- tem in rice, which retains recognition capacity for other bacterial pathogens.

关键词： OsFLS2 flagellin perception specificity Xanthomonas oryzae

NHC-gold(Ⅰ)-alkyne complexes induced hepatocellular carcinoma cell death through bioorthogonal activation by palladium complex in living system

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中国化学快报:英文版 2023年第9期34卷 230-234页

作者： Yunlong Lu Yuanhao liu Zhenlin Liang Xiaoyan Ma lijuan liu Zhenfan Wen Iogann Tolbatov Alessandro Marrone Wukun liu Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization School of Medicine&Holistic Integrative MedicineNanjing University of Chinese MedicineNanjing 210023China Institute of Chemical Research of Catalonia(ICIQ) The Barcelona Institute of Science and TechnologyTarragona 43007Spain Dipartimento di Farmacia Universitàdegli Studi“G.D’Annunzio”Chieti-PescaraVia dei VestiniChieti 66100Italy State key Laboratory of Coordination Chemistry Nanjing UniversityNanjing 210023China

Bioorthogonal reactions can take place in biological environments without interfering with biochemical *** this study,Pd(PPh_(3))_(2)Cl_(2)was used as a bioorthogonal catalyst to in situ transform the stable N-heterocyclic carbene(NHC)-gold(Ⅰ)-alkyne complex 5 to its active species which can effectively inhibit thioredoxin reductase(TrxR)and exhibit significant anticancer bioactivity in hepatocellular carcinoma(HCC).

关键词： Hepatocellular carcinoma N-Heterocyclic carbene Gold complex Alkyne Bioorthogonal activation

Regeneration of immunocompetent B lymphopoiesis from pluripotent stem cells guided by transcription factors

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Cellular & Molecular Immunology 2022年第4期19卷 492-503页

作者： Qi Zhang Bingyan Wu Qitong Weng Fangxiao Hu Yunqing Lin Chengxiang Xia Huan Peng Yao Wang Xiaofei liu lijuan liu Jiapin Xiong Yang Geng Yalan Zhao Mengyun Zhang Juan Du Jinyong Wang CAS Key Laboratory of Regenerative Biology Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhou510530China Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory) Guangzhou510005China Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhou510530China University of Chinese Academy of Sciences Beijing100049China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing100101China GMU-GIBH Joint School of Life Sciences Guangzhou Medical UniversityGuangzhou511436China

Regeneration of functional B lymphopoiesis from pluripotent stem cells(PSCs)is challenging,and reliable methods have not been ***,we unveiled the guiding role of three essential factors,Lhx2,Hoxa9,and Runx1,the simultaneous expression of which preferentially drives B lineage fate commitment and in vivo B lymphopoiesis using PSCs as a cell *** the presence of Lhx2,Hoxa9,and Runx1 expression,PSC-derived induced hematopoietic progenitors(iHPCs)immediately gave rise to pro/pre-B cells in recipient bone marrow,which were able to further differentiate into entire B cell lineages,including innate B-1a,B-1b,and marginal zone B cells,as well as adaptive follicular B *** particular,the regenerative B cells produced adaptive humoral immune responses,sustained antigen-specific antibody production,and formed immune memory in response to antigen *** regenerative B cells showed natural B cell development patterns of immunoglobulin chain switching and hypermutation via cross-talk with host T follicular helper cells,which eventually formed T cell-dependent humoral *** study exhibits de novo evidence that B lymphopoiesis can be regenerated from PSCs via an HSC-independent approach,which provides insights into treating B cell-related deficiencies using PSCs as an unlimited cell resource.

关键词： Lhx2 Hoxa9 Runx1 B lymphopoiesis pluripotent stem cells

术前CT征象联合临床指标预测肝细胞癌中CK19的表达

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中国癌症防治杂志 2024年第4期16卷 461-467页

作者：张思怡黄向阳覃云英刘丽娟黄彩云罗宁斌广西医科大学附属肿瘤医院医学影像中心广西临床重点专科(医学影像科)广西医科大学附属肿瘤医院优势培育学科(医学影像科)南宁530021

目的探讨术前CT征象联合临床指标预测肝细胞癌(hepatocellular carcinoma,HCC)患者细胞角蛋白19(cytokeratin 19,CK19)表达的价值。方法选择2019年1月—2021年12月在广西医科大学附属肿瘤医院治疗的HCC患者为研究对象。收集其临床数... 详细信息

目的探讨术前CT征象联合临床指标预测肝细胞癌(hepatocellular carcinoma,HCC)患者细胞角蛋白19(cytokeratin 19,CK19)表达的价值。方法选择2019年1月—2021年12月在广西医科大学附属肿瘤医院治疗的HCC患者为研究对象。收集其临床数据以及CT征象,并按照7∶3的比例随机分为训练组和验证组。采用向后逐步Logistic回归分析CK19表达的独立预测因子并构建预测模型。采用受试者工作特征(receiver operating characteristic,ROC)曲线、校准曲线和决策曲线评估该模型预测效能。结果共纳入380例HCC患者,其中68(17.9%)例CK19阳性。年龄、AFP、动脉期环形强化、中央延迟强化、瘤内动脉是HCC中CK19表达的独立预测因子(均P<0.05)。训练组和验证组的临床影像模型预测CK19表达的曲线下面积(area under the curve,AUC)分别为0.789、0.748。校准曲线显示,临床影像模型拟合度良好;决策曲线显示,临床影像模型具有较好的临床应用价值。结论术前CT征象联合年龄、AFP预测HCC患者的CK19表达具有良好的效能。

关键词：肝细胞癌 CT征象细胞角蛋白19