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Chinese Chemical Letters 2022年第2期33卷 893-897页

作者： Zhen Chen Ce Bian Chi Fan Tao Li Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Si coordination structures have been proven to greatly influence the ammonia-selective catalytic reduc-tion(NH_(3)-SCR)catalytic properties and the hydrothermal stability of Cu-based silicoaluminophosphate-form catalysts.However,the role of various Si coordination structures in the NH_(3)-SCR reaction over Cu-SAPO-34 catalyst remains unknown.Herein,a batch of Cu-SAPO-34 samples with various Si contents was synthesized via a one-pot method to study the role of Si coordination structures in the NH_(3)-SCR catalytic properties and hydrothermal stability.Cu/34-2 with the highest proportion of Si(xOAl)(x=1~3)struc-tures exhibits remarkable durability with 90%NO reduction efficiency within 200~450℃ even after a hydrothermal aging treatment at 850℃.In contrast,Cu/34-1 and Cu/34-4 with the highest proportions of Si(4OAl)and Si(0OAl)structures,respectively,are significantly deactivated by the same hydrothermal treatment.To better understand this phenomenon,the relationship between the Si coordination struc-tures and SCR performance is established using characterization techniques and kinetics measurements.Results reveal that a high content of Si(4OAl)and Si(0OAl)is detrimental to the hydrothermal stability of Cu-SAPO-34 catalyst.However,Si(x OAl)(x=1~3)structures are conducive to the stabilization of isolated Cu^(2+),thus enhancing the stability to severe hydrothermal treatment.

关键词： NO_(x) NH_(3)-SCR Cu-SAPO-34 Si coordination structure Hydrothermal stability

Effects of interleukin-10 treated macrophages on bone marrow mesenchymal stem cells via signal transducer and activator of transcription 3 pathway

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World Journal of Stem cells 2024年第5期16卷 560-574页

作者： Meng-Hao Lyu Ce Bian Yi-Ping Dou Kang Gao Jun-Ji Xu Pan Ma Department of Periodontics School of StomatologyCapital Medical UniversityBeijing 100050China Department of Orthodontics School of StomatologyCapital Medical UniversityBeijing 100050China Department of Dental Implantology School of StomatologyCapital Medical UniversityBeijing 100050China Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of StomatologyCapital Medical UniversityBeijing 100050China Beijing Laboratory of Oral Health Capital Medical UniversityBeijing 100050China

BACKGROUND Alveolar bone defects caused by inflammation are an urgent issue in oral implant surgery that must be solved.Regulating the various phenotypes of macrophages to enhance the inflammatory environment can significantly affect the progression of diseases and tissue engineering repair process.AIM To assess the influence of interleukin-10(IL-10)on the osteogenic differentiation of bone marrow mesenchymal stem cells(BMSCs)following their interaction with macrophages in an inflammatory environment.METHODS IL-10 modulates the differentiation of peritoneal macrophages in Wistar rats in an inflammatory environment.In this study,we investigated its impact on the proliferation,migration,and osteogenesis of BMSCs.The expression levels of signal transducer and activator of transcription 3(STAT3)and its activated form,phos-phorylated-STAT3,were examined in IL-10-stimulated macrophages.Subsequently,a specific STAT3 signaling inhibitor was used to impede STAT3 signal activation to further investigate the role of STAT3 signaling.RESULTS IL-10-stimulated macrophages underwent polarization to the M2 type through substitution,and these M2 macrophages actively facilitated the osteogenic differentiation of BMSCs.Mechanistically,STAT3 signaling plays a crucial role in the process by which IL-10 influences macrophages.Specifically,IL-10 stimulated the activation of the STAT3 signaling pathway and reduced the macrophage inflammatory response,as evidenced by its diminished impact on the osteogenic differentiation of BMSCs.CONCLUSION Stimulating macrophages with IL-10 proved effective in improving the inflammatory environment and promoting the osteogenic differentiation of BMSCs.The IL-10/STAT3 signaling pathway has emerged as a key regulator in the macrophage-mediated control of BMSCs’osteogenic differentiation.

关键词： Macrophages Interleukin-10 Bone marrow mesenchymal stem cells Signal transducer and activator of transcription 3 Inflammatory response

Recent progress of Pd/zeolite as passive NO_(x) adsorber: Adsorption chemistry, structure-performance relationships, challenges and prospects

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Chinese Chemical Letters 2022年第3期33卷 1169-1179页

作者： Ce Bian Dan Li Qian Liu Shoute Zhang Lei Pang Zhu Luo Yanbing Guo Zhen Chen Tao Li Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China DongFeng Trucks R&D center Wuhan 430056China Key Laboratory of Pesticide and Chemical Biology of Ministry of Education Institute of Environmental and Applied ChemistryCollege of ChemistryCentral China Normal UniversityWuhan 430079China

Due to the technology limitation and inferior deNO_(x) efficiency of urea selective catalytic reduction (SCR) catalysts at low temperatures, passive NO_(x) adsorber (PNA) for decrease of NO_(x), CO and hydrocarbons (HCs) during “cold start” of vehicles was proposed to meet the further tighten NO_(x) emission regulations in future. Among them, Pd modified zeolite PNA materials have received more attention because of their excellent NO_(x) storage capacity, anti-poisoning and hydrothermal stability and since Pd/zeolite PNA was proposed, a variety of advanced characterization methods have been applied to investigate its adsorption behavior and structure-performance relationship. The comprehension of the active sites and adsorption chemistry of Pd/zeolite PNA was also significantly improved. However, there are few reviews that systematically summarize the recent progress and application challenges in atomic-level understanding of this material. In this review, we summarized the latest research progress of Pd/zeolite PNA, including active adsorption sites, adsorption mechanism, material physicochemical properties, preparation methods, storage and release performance and structure-performance relationships. In addition, the deactivation challenges faced by Pd/zeolite PNA in practical applications, such as chemical poisoning, high temperature hydrothermal aging deactivation, etc., were also discussed at the micro-level, and some possible effective countermeasures are given. Besides, some possible improvements and research hotspots were put forward, which could be helpful for designing and constructing more efficient PNA materials for meeting the ultra-low NO_(x) emission regulation in the future.

关键词： Emission control Pd/zeolite Passive NO_(x)adsorber NO_(x)storage Cold start

Numerical Modeling of Elastic Modulus for cement Paste Using Homogenization Method

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Journal of Wuhan University of Technology(Materials Science) 2013年第4期28卷 751-760页

作者：田正宏 bian ce State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering of Hohai University College of Water Conservancy and Hydropower Engineering Hohai University

This paper focused on the evolution over time of elasticity of the cement paste during the hydration, e g, Young＇s modulus and Poisson＇s ration, by the proposed homogenization method combined the percolation algorithm with individual phase intrinsic elasticity. A cement paste development model, named ceMHYD3D, was used to establish an accurate microstructure. The modelling results are in good agreement with the experimental data and other numerical results available in the open literatm＇e. The suitable homogeneous scheme, applied to each level, should be carefully chosen to result in a realistic prediction. The percolation concept should aims to correctly predict the elasticity for cement paste at very early age, especially under low w/c ratios.

关键词：：ement paste elastic modulus numerical modeling percolation

Chemical proteomics:terra incognita for novel drug target profiling

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Chinese Journal of Cancer 2012年第11期31卷 507-518页

作者： Fuqiang Huang Boya Zhang Shengtao Zhou Xia Zhao Ce Bian Yuquan Wei The State Key Laboratory of Biotherapy West China HospitalSichuan UniversityChengduSichuan 610041P.R.China Department of Gynecology and Obstetrics West China Second HospitalSichuan UniversityChengduSichuan 610041P.R.China.

The growing demand for new therapeutic strategies in the medical and pharmaceutic fields has resulted in a pressing need for novel druggable targets.Paradoxically,however,the targets of certain drugs that are already widely used in clinical practice have largely not been annotated.Because the pharmacologic effects of a drug can only be appreciated when its interactions with cellular components are clearly delineated,an integrated deconvolution of drug-target interactions for each drug is necessary.The emerging field of chemical proteomics represents a powerful mass spectrometry(MS)-based affinity chromatography approach for identifying proteome-wide small molecule-protein interactions and mapping these interactions to signaling and metabolic pathways.This technique could comprehensively characterize drug targets,profile the toxicity of known drugs,and identify possible off-target activities.With the use of this technique,candidate drug molecules could be optimized,and predictable side effects might consequently be avoided.Herein,we provide a holistic overview of the major chemical proteomic approaches and highlight recent advances in this area as well as its potential applications in drug discovery.

关键词：化学蛋白质组学药物靶标蛋白质相互作用临床实践药理作用细胞成分亲和层析代谢途径

Primary mesonephric adenocarcinoma of the fallopian tube:A case report

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World Journal of Clinical Cases 2021年第18期9卷 4741-4747页

作者： Chuan Xie Yang-Mei Shen Qiu-He Chen Ce Bian Department of Gynecology and Obstetrics Key Laboratory of Birth Defects and Related Diseases of Women and ChildrenMinistry of EducationWest China Second University HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Pathology Key Laboratory of Birth Defects and Related Diseases of Women and ChildrenMinistry of EducationWest China Second University HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Mesonephric adenocarcinoma(MNAC)is an extremely rare malignancy in the female genital tract.Only a few cases have been reported in the literature,and most of them occurred in the cervix,with extremely rare cases in the uterine body and ovary.MNAC has never been reported to arise in the fallopian tube.CASE SUMMARY A 45-year-old woman was referred to our institution with a history of abdominal pain.Ultrasound revealed a cystic and solid mass in left adnexal region.The patient underwent complete staging surgery when intraoperative pathological examination demonstrated that the mass was malignant.The final histological and immunohistochemical results confirmed the diagnosis of MNAC originating from the fallopian tube.Then she received four cycles of combination chemotherapy with carboplatin plus paclitaxel.The tumor recurred with hepatic metastases 4 mo after initial surgery,and second resection of the tumors in the liver plus partial hepatectomy was performed.She was supplemented with five courses of a new combination chemotherapy with gemcitabine plus carboplatin,and there was no evidence of recurrence within the 22-mo follow-up period after the second surgery.CONCLUSION MNAC originating from the fallopian tube is an extremely rare and high malignancy with a poor prognosis.It can be very aggressive,even at early stage.Little is known about the clinical characteristics,pathological diagnosis,prognosis,and optimal management strategy of MNAC originating from the fallopian tube.Herein we report the first case of primary MNAC deriving from the fallopian tube.

关键词： Mesonephric adenocarcinoma Mesonephric-like adenocarcinoma Fallopian tube Surgery Chemotherapy Case report

毛泽东的实践智慧对传统形而上学的超越——以《实践论》和《矛盾论》为例

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阴山学刊 2022年第4期35卷 13-17页

作者：边策吉林大学哲学社会学院吉林长春130012

纵观整个西方哲学史,传统的形而上学都是从同一性的思维出发去把握一个具有永恒性、不变的“一”的世界。直到马克思才实现了对传统形而上学的理论超越,但这仅仅是停留在理论层面。毛泽东继承和吸收了马克思主义的唯物辩证法,撰写了《... 详细信息

纵观整个西方哲学史,传统的形而上学都是从同一性的思维出发去把握一个具有永恒性、不变的“一”的世界。直到马克思才实现了对传统形而上学的理论超越,但这仅仅是停留在理论层面。毛泽东继承和吸收了马克思主义的唯物辩证法,撰写了《实践论》和《矛盾论》两部重要的哲学著作,将马克思主义理论与中国革命实际相结合,真正地实现了理论智慧到实践智慧的转向,体现了其哲学思想的实事求是的精髓。毛泽东的实践智慧实现了对马克思主义理论的“转识成智”,对中国革命道路的探索产生了深远影响。

关键词：毛泽东《实践论》《矛盾论》实践智慧

The Effect of Recombination Zone Positon on the Color Temperature Performance in the Color-Tunable White Organic Light-Emitting Diode

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Optics and Photonics Journal 2022年第4期12卷 78-87页

作者： Zhixiu Ma Ce Bian Zeyuan Gao College of Science University of Shanghai for Science and Technology Shanghai China

Using a color-tunable organic light-emitting diode (CT-OLED) can accord with the circadian cycle of humans and realize healthy lighting. The variation range of the correlated color temperature (CCT) is an important parameter to measure the performance of CT-OLEDs. In this paper, the effect of changing the utilization of phosphorescent materials and the position of the recombination zone (RZ) in the device are investigated by changing the thickness of the emissive layer (EML) and the doping ratio of the host and guest materials. The results show that reducing the red phosphorescent material and improving the blue phosphorescent material can affect the change direction of CCT, but it is not enough to expand the span of CCT (ΔCCT). It is more conducive to improving ΔCCT by more reasonable regulation of the position of the main RZ in EML and the energy transfer from the blue sub-EML to the red sub-EML. Device D obtains the best electro-optic and spectral characteristics, in which the maximum ΔCCT is 5746 K (2661 - 8407 K) as the voltage changes from 3.75 V to 9.75 V, the maximum current efficiency and luminance reach 18.34 cd·A-1 and 12,100 cd·m-2, respectively.

关键词： Optical Devices Organic Light-Emitting Diode Color-Tunable Recombination Zone Color Temperature

尖峰岭保护区环境解说媒介设计——基于认知心理学的设计方法

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热带林业 2021年第3期49卷 74-80,73页

作者：边策国家林业和草原局调查规划设计院北京100714

在生态旅游规划中,环境解说是不可或缺的一个环节。解说资源、解说媒介和解说受众构成了环境解说系统的三要素。其中,解说媒介是解说三要素的重要组成部分,是解说资源和解说受众的桥梁和纽带。文章针对当前尖峰岭保护区环境解说媒介存... 详细信息

在生态旅游规划中,环境解说是不可或缺的一个环节。解说资源、解说媒介和解说受众构成了环境解说系统的三要素。其中,解说媒介是解说三要素的重要组成部分,是解说资源和解说受众的桥梁和纽带。文章针对当前尖峰岭保护区环境解说媒介存在的问题,借鉴认知心理学的理论知识,结合保护区特色,对解说媒介选择进行分析,提出“基于注意过程的解说媒介设计”“基于记忆过程的解说媒介布局”和“基于思维过程的解说媒介构建”3个方法,对保护区解说媒介进行设计,从而实现保护环境的教育目的,实现保护区自然资源的保护与合理利用,实现保护区生态旅游的可持续发展。

关键词：环境解说媒介尖峰岭保护区认知心理学

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正畸患者口腔卫生的维护方法

中华口腔正畸学杂志 2023年第2期30卷 105-109页

作者：于超然边策张宁首都医科大学附属北京口腔医院正畸科 100050

口腔卫生维护是保证正畸治疗顺利开展的基础,正畸治疗中应对其引起重视,并采取系统、全面的防治措施,避免正畸并发症的发生。正畸患者的口腔健康维护方法包括患者的自主维护措施,如机械清洁、抑菌药物等;临床干预措施,包括护理干预、氟... 详细信息

口腔卫生维护是保证正畸治疗顺利开展的基础,正畸治疗中应对其引起重视,并采取系统、全面的防治措施,避免正畸并发症的发生。正畸患者的口腔健康维护方法包括患者的自主维护措施,如机械清洁、抑菌药物等;临床干预措施,包括护理干预、氟制剂的应用、新型抗菌材料的应用、规范化临床操作等。本文将就正畸患者口腔卫生维护方法的相关研究进展做一综述。

关键词：正畸口腔卫生口腔健康刷牙抗菌材料