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Chinese Journal of Structural Chemistry 2021年第2期40卷 187-192,146页

作者： CHANG Xin-Hong YANG Xiao-Gang zhai zhi-min CHEN Jia-Yi LI Fei-Fei College of Chemistry and Chemical Engineering Luoyang Normal UniversityLuoyang 471934China College of Chemistry and Chemical Engineering Henan Polytechnic UniversityJiaozuo 454000China

One cadmium(Ⅱ)coordination polymer[Cd(1,4-NDC)(PPIM)_(2)]_(n)(1,1,4-H_(2)NDC=1,4-na-phthalenedicarboxylic acid,PPIM=2-propylimidazole),has been synthesized under hydrothermal conditions and structurally characterized by elemental analysis,TGA and X-ray single-crystal *** 1 crystallizes in monoclinic with space group P2_(1)/n,a=8.8292(2),b=16.6936(4),c=16.7869(4)Å,β=99.701(2)°,V=2438.86(10)Å^(3),Z=4,Dc=1.489 Mg/m^(3),F(000)=1112,μ=0.932 mm^(–1),S=1.076,the final R=0.0360 and wR=*** 1,the 1,4-NDC ligand bridges the Cd(Ⅱ)to form a 1D infinite chain,which are connected through N–H···O hydrogen bond to form a 2D layer then to an overall 3D supramolecular *** time-resolved measurements indicate that 1 shows highly prolonged phosphorescent lifetime about 452 times in comparison with that of pristine PPIM ***-crystal analysis and theory calculations indicate that strong coordination bonds and complete separation of HOMOs and LUMOs in the rigid matrix of 1 promote the long-last phosphorescence emission.

关键词： coordination polymer crystal structure room temperature phosphorescence theory calculations

Fibrinogen and P-selectin expression in atherosclerosis model of Sprague Dawley rat

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Chinese Medical Journal 2011年第22期124卷 3768-3772页

作者： ZHOU Bi-rong PAN Ying zhai zhi-min Department of Hematology Second Affiliated Hospital of Anhui Medical University Hefei Anhui 230601 China

Background Platelet P-selectin plays an important role in inflammation and contributes to thrombosis and hemostasis. Fibrinogen may take part in inflammation, thrombosis, and hemostasis via enhancement of platelet P-selectin expression. This study aimed to discover the correlation between them in atherosclerosis model of Sprague Dawley （SD） rat. Methods Diet-induced atherosclerosis SD rats were adopted as experimental models. The blood from the common abdominal aorta of the rats was obtained to measure the biochemical characteristics and for the check of flow cytometry. Then the aortas were separated carefully, taken out, put into 10% （w/v） neutral formalin for later use. Then fibrinogen and P-selectin expression were detected by flow cytometry and immunohistochemistry. Results SD rats were induced to atherosclerosis model by high fat diet and vitamin D2 injected. It was discovered that the binding of fibrinogen and the expression of P-selectin on the platelet increase in atherosclerosis model （Group H） than in that in the control group （Group Z）, there were closely interrelated. High levels of fibrinogen and P-selectin express on the artery of atherosclerosis rat model. Conclusions Fibrinogen and P-selectin are concerned with atherosclerosis. Fibrinogen can interact with P-selectin in order to contribute to the development of atherosclerosis, high levels of fibrinogen and P-selectin can be regarded as risk factors for markers of atherosclerosis.

关键词： fibrinogen P-selectin atherosclerosis

IL-2对免疫激活和免疫耐受的双向调节作用

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中国药理学通报 2013年第3期29卷 319-322页

作者：翟志敏安徽医科大学第二附属医院血液科生物医疗研究中心安徽医科大学血液病研究中心安徽合肥230601

白细胞介素2(interleukin-2,IL-2)从被发现迄今已有30余年,但仍然是最受关注和被广泛研究的细胞因子之一。IL-2最初是从T细胞培养上清液中分离获得,并对体外培养的T细胞具有促进增殖作用,因此传统认为IL-2是一种激活T细胞,并维持T细胞... 详细信息

白细胞介素2(interleukin-2,IL-2)从被发现迄今已有30余年,但仍然是最受关注和被广泛研究的细胞因子之一。IL-2最初是从T细胞培养上清液中分离获得,并对体外培养的T细胞具有促进增殖作用,因此传统认为IL-2是一种激活T细胞,并维持T细胞分化和增殖的T细胞生长因子,同时也参与炎症或自身免疫性反应。近年来,人们在IL-2或IL-2R缺陷小鼠动物模型等的研究中发现IL-2的主要功能不仅是提升免疫反应,更重要的是维持Treg细胞的稳定及其介导的免疫耐受,故具有双向免疫调节作用,这些对IL-2生物学活性的新发现,也促使人们开始重新评价和认识临床使用IL-2的疗效、适应症和给药方式。

关键词：白细胞介素2 受体免疫激活免疫耐受调节性T细胞效应性T细胞

Liquid-phase epitaxial layer by layer brushing fabrication of metalorganic frameworks films

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Nano Research 2024年第6期17卷 5698-5704页

作者： Li-Mei Chang Rui zhai zhi-Zhou Ma Jian-Dong Huang zhi-Gang Gu Jian Zhang College of Chemistry Fuzhou UniversityFuzhou 350108China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China

Development of metal-organic framework(MOF)films is of great importance to expand their ***,we report a facile and universal method of liquid-phase epitaxial(LPE)layer by layer(LBL)brushing approach for fabricating MOF films on various substrates in a high-throughput *** MOF films preparation method offers a great prospective to cost-effectively construct films with short preparation time and little reagent ***,this LBL brushing approach has been implemented successfully to assemble various MOF films,including HKUST-1,zeolitic imidazolate framework-8(ZIF-8),Cu(bdc),and Cu_(2)(L)_(2)P(L=bdc,ndc,and cam;P=dabco and bipy).Afterwards,the classic MOF HKUST-1 and ZIF-8 films were grown on sensor chip electrode and porous fiber support for good volatile organic compounds(VOCs)selective sensing and water purification *** study demonstrates that this LBL brushing preparation method can be employed to synthesize various MOF films with a variety of characteristics to realize their sensing and separation applications.

关键词： metal-organic framework porous materials layer by layer fabrication film

Incorporating Lasso Regression to Physics-Informed Neural Network for Inverse PDE Problem

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 385-399页

作者： Meng Ma Liu Fu Xu Guo zhi zhai National Key Lab of Aerospace Power System and Plasma Technology Xi’an Jiaotong UniversityXi’an710049China School of Mechanical Engineering Xi’an Jiaotong UniversityXi’an710049China Department of Electrical and Computer Engineering University of Massachusetts LowellLowellMA 01854USA

Partial Differential Equation(PDE)is among the most fundamental tools employed to model dynamic *** PDE modeling methods are typically derived from established knowledge and known phenomena,which are time-consuming and ***,discovering governing PDEs from collected actual data via Physics Informed Neural Networks(PINNs)provides a more efficient way to analyze fresh dynamic systems and establish *** study proposes Sequentially Threshold Least Squares-Lasso(STLasso),a module constructed by incorporating Lasso regression into the Sequentially Threshold Least Squares(STLS)algorithm,which can complete sparse regression of PDE coefficients with the constraints of l0 *** further introduces PINN-STLasso,a physics informed neural network combined with Lasso sparse regression,able to find underlying PDEs from data with reduced data requirements and better *** addition,this research conducts experiments on canonical inverse PDE problems and compares the results to several recent *** results demonstrated that the proposed PINN-STLasso outperforms other methods,achieving lower error rates even with less data.

关键词： Physics-informed neural network inverse partial differential equation Lasso regression scientific machine learning

Fibrinogen facilitates atherosclerotic formation in Atherosclerosis Model Sprague Dawley rats

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Fibrinogen facilitates atherosclerotic formation in Atherosc...

Novel P-doping-tuned Pd nanoflowers/S,N-GQDs photo-electrocatalyst for high-efficient ethylene glycol oxidation

中华医学会血液学分会第十三届全国血栓与止血学术会议暨“血栓栓塞性疾病（血栓与止血）基础与临床研究进展”

作者： ZHOU Bi-Rong PAN Ying zhai zhi-min Department of Hematology the Second Affiliated Hospital of Anhui Medical University Department of Cardiology the First Affiliated Hospital of Anhui Medical University

Backgrounds:Fibrinogen contributes to thrombosis and hemostasis and roles in *** is also known to play an important role in atherosclerosis.P-selecin is also related with *** purpose is to discover the role of fibrinogen in Atherosclerosis Model Sprague Dawley rats and guess the possible mechanism. Methods:Diet-induced atherosclerosis Sprague Dawley(SD) rats were adopted as

关键词： Sprague Dawley rat Fibrinogen Atherosclerosis

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Chinese Chemical Letters 2024年第6期35卷 541-545页

作者： Xiaoxiao Huang zhi-Long He Yangpeng Chen Lei Li Zhenyu Yang Chunyang zhai mingshan Zhu School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China College of Biological Chemical Sciences and EngineeringJiaxing UniversityJiaxing 314001China Guangdong Key Lab oratory of Environmental Pollution and Health School of EnvironmentJinan UniversityGuangzhou 510632China

Traditional photo-electcatalyst structures of small noble metal nanoparticles assembling into large-scale photoactive semiconductors still suffer from agglomeration of noble metal nanoparticles,insufficient charge transfer,undesirable photoresponse ability that restricted the photo-electrocatalytic *** this end,a novel design strategy is proposed in this work,namely integrating small-scale photoactive materials(doped graphene quantum dots,S,N-GQDs)with large-sized noble metal(Pd P)nanoflowers to form novel photo-electrocatalysts for high-efficient alcohol oxidation *** expected,superior electrocatalytic performance of Pd P/S,N-GQDs for ethylene glycol oxidation is acquired,thanks to the nanoflower structure with larger specific surface area and abundant active ***,nonmetal P are demonstrated,especially optimizing the adsorption strength,enhancing the interfacial contact,reducing metal agglomeration,ensuring uniform and efficient doping of S,N-GQDs,and ultimately significantly boost the catalytic activity of photo-electrocatalysts.

关键词： Non-metallic P–doping Sulfur nitrogen co-doped graphene quantum dots Pd nanoflowers Photo-electrocatalytic Ethylene glycol oxidation

ALTERNATING OPTIMIZATION METHOD FOR ISOGEOMETRIC TOPOLOGY OPTIMIZATION WITH STRESS CONSTRAINTS

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Journal of Computational Mathematics 2024年第1期42卷 134-155页

作者： Xiaoya zhai School of Mathematical Sciences University of Science and Technology of ChinaHefei 230071China

Topology optimization (TO) has developed rapidly recently. However, topology optimization with stress constraints still faces many challenges due to its highly non-linear properties which will cause inefficient computation, iterative oscillation, and convergence guarantee problems. At the same time, isogeometric analysis (IGA) is accepted by more and more researchers, and it has become one important tool in the field of topology optimization because of its high fidelity. In this paper, we focus on topology optimization with stress constraints based on isogeometric analysis to improve computation efficiency and stability. A new hybrid solver combining the alternating direction method of multipliers and the method of moving asymptotes (ADMM-MMA) is proposed to solve this problem. We first generate an initial feasible point by alternating direction method of multipliers (ADMM) in virtue of the rapid initial descent property. After that, we adopt the method of moving asymptotes (MMA) to get the final results. Several benchmark examples are used to verify the proposed method, and the results show its feasibility and effectiveness.

关键词： Isogeometric topology optimization Stress constraints The ADMM-MMA solver

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表观遗传学在淋巴系统肿瘤研究中的新进展

中国实验血液学杂志 2012年第1期20卷 219-223页

作者：李延莉翟志敏安徽医科大学第二附属医院血液科安徽合肥230601

表观遗传学是研究不涉及DNA序列改变的基因表达和调控的可遗传修饰,即探索从基因演绎为表型的过程和机制的一门新兴学科。近年来诸多证据显示,表观遗传学改变在淋巴系统肿瘤发生发展过程中起重要作用。例如,近期多个实验室的资料显示,... 详细信息

表观遗传学是研究不涉及DNA序列改变的基因表达和调控的可遗传修饰,即探索从基因演绎为表型的过程和机制的一门新兴学科。近年来诸多证据显示,表观遗传学改变在淋巴系统肿瘤发生发展过程中起重要作用。例如,近期多个实验室的资料显示,参与许多重要分子信号通路的基因在急性淋巴细胞白血病中是表观抑制的;一组甲基化标志可被用作慢性淋巴细胞白血病患者额外的危险分层因素;基于表观遗传学甲基化谱研究中间性(灰区)B细胞淋巴瘤类别划分模型;多发性骨髓瘤中mciroRNA介导的表观遗传学沉默与P53功能联系密切;表观遗传修饰治疗赋予免疫治疗更广的内涵,其可能是极富潜力的免疫治疗策略之一。本文就淋巴系统肿瘤中表观遗传学改变的最新研究进展及通过干预表观遗传修饰治疗的相关研究和应用前景做一综述。

关键词：表观遗传学淋巴系统肿瘤免疫治疗

Reproducibility study of intravoxel incoherent motion and apparent diffusion coefficient parameters in normal pancreas

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2031-2039页

作者： Xiang Liu Yi-Feng Wang Xiao-Hui Qi zhi-Lei Zhang Jiang-Yang Pan Xue-Li Fan Yu Du Ying-min zhai Qi Wang Department of CT and MRI The Fourth Hospital of Hebei Medical UniversityShijiazhuang 050000Hebei ProvinceChina

BACKGROUND The consistency of pancreatic apparent diffusion coefficient(ADC)values and intravoxel incoherent motion(IVIM)parameter values across different magnetic resonance imaging(MRI)devices significantly impacts the patient’s diagnosis and *** To explore consistency in image quality,ADC values,and IVIM parameter values among different MRI devices in pancreatic *** This retrospective study was approved by the local ethics committee,and informed consent was obtained from all *** total,22 healthy volunteers(10 males and 12 females)aged 24-61 years(mean,28.9±2.3 years)underwent pancreatic diffusion-weighted imaging using 3.0T MRI equipment from three *** independent observers subjectively scored image quality and measured the pancreas’s overall ADC values and signal-to-noise ratios(SNRs).Subsequently,regions of interest(ROIs)were delineated for the IVIM parameters(true diffusion coefficient,pseudo-diffusion coefficient,and perfusion fraction)using post-processing *** ROIs were on the head,body,and tail of the *** subjective image ratings were assessed using the kappa consistency *** correlation coefficients(ICCs)and mixed linear models were used to evaluate each device’s quantitative parameter ***,a pairwise analysis of IVIM parameter values across each device was performed using Bland-Altman *** The Kappa value for the subjective ratings of the different observers was 0.776(P0.05),and the ICCs for the ADC values from different devices were 0.870,0.707,and 0.808,respectively(P<0.05).Notably,only a few statistically significant inter-device agreements were observed for different IVIM parameters,and among t

关键词： Intravoxel incoherent motion Pancreas Image quality Consistency test