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Geometry, Electronic Structure, and Related Properties of Dye Sensitizer： 3,4-bis[1- （carboxymethyl）-3-indolyl]- 1 H-pyrrole-2,5-dione

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Chinese Journal of Chemical Physics 2009年第1期22卷 63-68页

作者： cai-rong Zhang You-zhi Wu Yu-hong Chen Yu-tian Ding Ding-jun Zhang Hong-shan Chen Department of Applied Physics Lanzhou University of Technology Lanzhou 730050 China School of Material Science and Engineering Lanzhou University of Technology Lanzhou 730050 China College of Physics and Electronic Engineering Northwest Normal University Lanzhou 730070 China

The geometry, electronic structure, polarizability and hyperpolarizability of dye sensitizer 3,4-bis[1-（carboxymethyl）-3-indolyl]-1H-pyrrole-2,5-dione （BIMCOOH） were studied using density functional theory （DFT） with hybrid functional B3LYP, and the electronic absorption spectra were investigated using semi-empirical quantum chemical method ZINDO-1 and time-dependent DFT （TDDFT）. The results of natural bond orbital suggest that the natural charges of the dione, indole, and acetic groups are about 0.15e, -0.29e, and 0.44e, respectively. The calculated isotropic polarizability, polarizability anisotropy invariant and hyperpolarizability are 305.4, 188.3, and 1155.4 a.u., respectively. The electronic absorption spectral features in visible and near-UV region were assigned to the π→π^＊ transition due to the qualitative agreement between the experiment and the TDDFT calculations, and the transitions of the excited states 9-11 related to photoinduced intramolecular charge transfer processes. The analysis of electronic structure and UV-Vis absorption indicates that the indole groups primarily contributed sensitization of photo-to-currency conversion processes, and the interracial electron transfer between semiconductor TiO2 electrode and dye sensitizer BIMCOOH are electron injection processes from excited states of the dyes to the semiconductor conduction band.

关键词： Dye sensitizer Electronic structure Density functional theory Absorption spectrum

Supported Lal_xCexMn03 perovskite catalysts： preparation, characterization and catalytic performance in methane combustion

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Frontiers of Materials Science 2012年第4期6卷 304-310页

作者： Ying SHAO Xiao-Fei WANG Min AO cai-rong GONG Guo-Liang FAN Hai-Feng CHEN School of Materials Science and Engineering Tianjin UniversityTianjin 300072China

A serials of Lal_xCexMnO3 （x = 0, 0.2, 0.4, 0.6 and 0.8） catalysts have been prepared via a sol-gel process using citric acid as a chelating agent. The phase composition and morphology of the catalysts are characterized by XRD, SEM and TEM. La1_xCexMnO3/y-AI203/cordierite catalyst has also been prepared by immersion process using cordierite honeycomb ceramic as carrier and Y-AI203 as support agents. The effect of Ce-doping on the structure of perovskite and catalytic property of methane combustion is explored. The results show that with the increase of Ce substitution, the crystal structure of perovskite changes from the tetragonal system to the orthorhombic system and when the x is equal to 0.2, the catalytic property in methane combustion is the best.

关键词： perovskite preparation sol-gel methane combustion

Clinical significance of combined determination of serum PGⅠ , PGⅡ and GAS for diagnosis of gastric cancer

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Nuclear Science and Techniques 2005年第4期16卷 217-220页

作者： JIANG Meng-Jun LI Wen-Xin XIAO Zhi-Jian ZHANG rong-Jun cai Gang-Ming State Key Laboratory of Nuclear Medicine Jiangsu Institute of Nuclear Medicine. Wuxi 214063

To evaluate the clinical value of combined determination of serum PGⅠ, PGⅡ and GAS for early diag-nosis of gastric cancer, the serum levels of PGⅠ, PGⅡ and GAS in 190 healthy controls and 129 patients with gas-tric disorders were measured by RIA. The 129 patients include 68 cases of gastric cancer. The results showed that the serum levels of PGⅠ and PGⅠ/PGⅡ ratio in gastric cancer patients were obviously lower than those in healthy controls, while comparing with controls, the serum GAS levels were significantly higher. The diagnostic accuracy of the determinations for gastric cancer was evaluated by receiver operating characteristic (ROC) curve analysis. The area under the curve (AUC) levels of serum PGⅠ, PGⅠ/PGⅡ ratio and GAS were 0.833, 0.842 and 0.851, respec-tively. As serum PGⅠ or PGⅠ/PGⅡ ratio or GAS were combined, the sensitivity and specificity of determination for gastric cancer diagnosis were 94.2% and 73.4%, respectively. All these results indicated that the combined deter-mination of serum PGⅠ, PGⅡ and GAS levels may be used as a tool for primary screening of gastric cancer.

关键词：免疫血清诊断方法胃癌放射性疗法实验室诊断放射性同位素

A novel approach to probing new physics with neutral Gauge Boson couplings

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Science China(Physics,Mechanics & Astronomy) 2021年第2期64卷 1-1页

作者： rong-Gen cai Institute of Theoretical Physics Chinese Academy of SciencesBeijing100190China

Even before reaching the energy threshold for producing any new elementary particle beyond the Standard Model(SM)[1],new physics effects can be systematically described by effective operators with mass-dimensions higher than *** new operators together with the SM form the so-called SM effective theory(SMEFT).Most analyses consider only dimension-6 operators.

关键词： operators neutral dimensions

环磷酰胺不同剂量及停药周期构建小鼠卵巢早衰动物模型比较研究

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生殖医学杂志 2024年第3期33卷 365-372页

作者：莫金桦胡鸿颜秋霞李鹏东陈彩蓉广州医科大学附属清远医院(清远市人民医院)生殖医学中心清远511500 广州医科大学附属清远医院(清远市人民医院)中心实验室清远511500

目的比较环磷酰胺(CTX)不同剂量和停药周期构建的小鼠卵巢早衰(POF)动物模型,寻找最佳造模方式,为进一步研究POF提供更为适用的实验模型。方法8周龄动情周期规律的C57BL/6雌性小鼠共40只,随机分成5组:CON(对照组),CTX80(80 mg·kg^(-1)... 详细信息

目的比较环磷酰胺(CTX)不同剂量和停药周期构建的小鼠卵巢早衰(POF)动物模型,寻找最佳造模方式,为进一步研究POF提供更为适用的实验模型。方法8周龄动情周期规律的C57BL/6雌性小鼠共40只,随机分成5组:CON(对照组),CTX80(80 mg·kg^(-1)·d^(-1)),CTX100(100 mg·kg^(-1)·d^(-1)),CTX120(120 mg·kg^(-1)·d^(-1)),CTX150(150 mg·kg^(-1)·d^(-1)),连续腹腔注射10 d,CON组注射生理盐水,其余组注射不同剂量CTX。记录小鼠体重、动情周期和卵巢脏器系数等,比较得出CTX诱导POF模型最佳暴露剂量。使用最佳CTX暴露剂量重新造模,随机分为模型组和对照组,分别在停药后第1、2、3、4周,检测血清性激素,计数各级卵泡等,比较得出CTX诱导POF模型最佳停药周期。结果(1)研究最佳造模剂量时,CTX150死亡2只,而CTX80小鼠仍有完整的动情周期,说明这两种剂量并非最佳。CTX各组在暴露过程中体重呈进行性下降,停止暴露后体重开始回升,但至停药第7天各组体重仍显著低于CON组(P0.05)。考虑到尽量缩小药物对实验动物伤害的伦理要求,得出CTX诱导卵巢早衰模型的最佳暴露剂量为100 mg·kg^(-1)·d^(-1)×10 d。(2)研究最佳停药周期时,模型组停药后第1、2、3、4周血清抗苗勒管激素(AMH)水平、雌二醇(E_(2))水平、原始卵泡、初/次级卵泡均显著低于同期对照组(P<0.05),卵泡刺激素(FSH)水平在第1、3、4周均显著高于同期对照组(P<0.05),而第1、2、4周的闭锁卵泡计数均显著高于同期对照组(P<0.05),均表现出POF典型特征。随CTX停药周期延长,模型组小鼠原始卵泡、初/次级卵泡、成熟卵泡计数呈进行性下降,闭锁卵泡计数升高(P<0.05),CTX对卵巢功能损害呈进行性加重。比较得出CTX停药1周是诱导POF模型最佳成模周期。结论CTX100 mg·kg^(-1)·d^(-1)连续暴露10 d是建立CTX诱导小鼠POF模型的最佳造模剂量,最佳成模周期为停药后1周。

关键词：卵巢早衰动物模型环磷酰胺

Isometric Immersions into Warped Product Spaces

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Acta Mathematica Sinica,English Series 2010年第12期26卷 2269-2282页

作者： Qun CHEN cai rong XIANG~1) School of Mathematics and Statistics, Wuhan University, Wuhan 430072, P.R. China School of Mathematics and Statistics Wuhan University Wuhan P. R. China

This paper concerns the submanifold geometry in the ambient space of warped productmanifolds F^n×σ R, this is a large family of manifolds including the usual space forms R^m, S^m and H^m. We give the fundamental theorem for isometric immersions of hypersurfaces into warped product space R^n×σ R, which extends this kind of results from the space forms and several spaces recently considered by Daniel to the cases of infinitely many ambient spaces.

关键词： Isometric immersion hypersurface warped product the fundamental theorem

多学科讨论:1例高级别浆液性卵巢癌3次脑转移

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中华转移性肿瘤杂志 2024年第3期7卷 281-285页

作者：吕尤蔡嵘柴维敏奚文崎卞留贯冯炜炜上海交通大学医学院附属瑞金医院妇产科上海200025 上海交通大学医学院附属瑞金医院放疗科上海200025 上海交通大学医学院附属瑞金医院放射科上海200025 上海交通大学医学院附属瑞金医院肿瘤科上海200025 上海交通大学医学院附属瑞金医院神经外科上海200025

卵巢恶性肿瘤脑转移发生率极低,仅约1.34%,因此,其诊疗策略目前尚无明确建议。同时,一经发现脑转移预后极差,中位生存期为10.1个月。本文中的1例患者先后发生3次脑转移,目前正在诊治、随访中。在此报道该病例的诊疗经过,以及妇产科、放... 详细信息

卵巢恶性肿瘤脑转移发生率极低,仅约1.34%,因此,其诊疗策略目前尚无明确建议。同时,一经发现脑转移预后极差,中位生存期为10.1个月。本文中的1例患者先后发生3次脑转移,目前正在诊治、随访中。在此报道该病例的诊疗经过,以及妇产科、放疗科、放射科、肿瘤科、神经外科多学科讨论的结果。

关键词：多学科讨论卵巢癌脑转移放射治疗

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《金匮要略》说课设计探讨

光明中医 2024年第6期39卷 1215-1218页

作者：蔡蓉曹姗杨帆林连美杨希茜李云海湖北中医药大学中医临床学院湖北武汉430061

“治未病”是《金匮要略》中正文首条内容,其理念一直贯穿于各个病篇及经方之中,但因传统教学缺陷,导致学生对该观念缺乏共鸣、畏惧实践,而说课是提高教育水平的教学研究活动,是使青年教师适应现代教学方法的高效师资培训捷径。为了实... 详细信息

“治未病”是《金匮要略》中正文首条内容,其理念一直贯穿于各个病篇及经方之中,但因传统教学缺陷,导致学生对该观念缺乏共鸣、畏惧实践,而说课是提高教育水平的教学研究活动,是使青年教师适应现代教学方法的高效师资培训捷径。为了实现更好的教学效果,此文通过对“治未病”条文进行系统的说课设计,包括说教材、说教学理念与目标、说学情、说课程思政、说课程反思等6个方面,从而探索《金匮要略》的现代教学方法与技巧,以期提高教师教学水平,更好地达到培养目标。

关键词：《金匮要略》治未病说课设计医学教育

Intraspinal clear cell meningioma: a case report

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Chinese Medical Journal 2005年第4期118卷 348-349页

作者： JIAYong ZHONGDing-rong CUIQuan-cai DepartmentofPathology PekingUnionMedicalCollegeHospitalChineseAcademyofMedicalSciencesandPekingUnionMedicalCollegeBeijing100730China

Clear cell meningioma ( CCM) is a recently described histologic subtype ofmeningioma. It has an aggressive clinical behavior, and is prone to local recurrence and distantmetastasis. The most common locations of the tumor are the spinal canal and the cranial posteriorfossa. We present a case of typical clear cell meningioma in the cauda equina detected by magneticresonance imaging ( MRI) and microscopy.

关键词： clear cell meningioma cauda equina