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中华绒螯蟹眼柄MTXO细胞GABA受体通道研究

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生物化学与生物物理进展 2003年第1期30卷 129-133页

作者：孙金生高春蕾相建海中国科学院海洋研究所

采用全细胞膜片钳技术测定了中华绒螯蟹 (Eriocheirsinensis)眼柄视神经节端髓X器官 (MTXO)三种类型神经内分泌细胞对 0 0 1～ 5mmol/Lγ氨基丁酸 (γ aminobutyricacid ,GABA)的反应 ,并结合选择性拮抗剂和激动剂的使用进行了GABA受... 详细信息

采用全细胞膜片钳技术测定了中华绒螯蟹 (Eriocheirsinensis)眼柄视神经节端髓X器官 (MTXO)三种类型神经内分泌细胞对 0 0 1～ 5mmol/Lγ氨基丁酸 (γ aminobutyricacid ,GABA)的反应 ,并结合选择性拮抗剂和激动剂的使用进行了GABA受体研究 .在电流钳模式下 ,依据不同NernstCl-电位 ,三种类型细胞均对GABA产生去极化或超级化反应 .在电压钳模式下 ,GABA激活Cl-通道电流 (IGABA) .IGABA在灌流GABA后约12 0 0ms内激活 ,80 0ms内达到峰值 ,没有明显的脱敏反应 ,反转电位接近NernstCl-电位 .IGABA幅值呈浓度依赖性 ,激活阈值为 0 0 1mmol/L ,约在 0 5mmol/L达到饱和 .药理学实验结果表明 ,中华绒螯蟹眼柄神经内分泌细胞GABA受体是Cl-通道蛋白 ,对Cl-离子通道阻断剂Picrotoxin和Niflumicacid敏感 ,但是对GABAA 受体拮抗剂Bicuculline和GABAC 受体激动剂cis 4 aminocrotonicacid (CACA)和trans 4 aminocrotonic (TACA)均不敏感 .

关键词：中华绒螯蟹眼柄 MTXO细胞 GABA受体视神经节神经内分泌细胞神经肽类激素

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试论陆羯南的国际观

史学集刊 2011年第5期 97-102页

作者：王明伟东北师范大学历史文化学院吉林长春130024

在反对条约改正运动中,陆羯南站在人道主义的立场,对近代国际竞争中的社会达尔文主义和欧洲中心主义提出了批判。陆羯南主张每个国家都有生存权,都能够为世界文化做出贡献,强调后进国家在实现近代化过程中应重视维护国家的独立。

关键词：陆羯南国民天命竞争

Breeding of commercially acceptable allelopathic rice cultivars in china

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Breeding of commercially acceptable allelopathic rice cultiv...

教师专业化与教师专业责任——美国教师专业化发展的新路径

中国第五届植物化感作用学术研讨会

作者： KONG Chui-Hua 1 CHEN Xiong-Hui 2 HU Fei 2 ZHANG Song-Zhu 1 1 college of Resources and Environmental Sciences china Agricultural university Beijing 100193 china 2 college of Agronomy South china Agricultural university Guangzhou 510642 china

One promising area of paddy weed control is the potential of exploiting the weed suppressing ability of *** study was conducted to develop commercially acceptable allelopathic rice cultivars usi

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来源： cnki会议评论

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外国教育研究 2002年第12期29卷 57-60页

作者：王春光谢江巍全国中小学教师继续教育东北师范大学研究中心吉林长春130024 东北师范大学外国语学院吉林长春130024

教师的专业发展是伴随着教师的专业责任的强化而发展的。教师专业责任的强化有赖于建立一套共负的专业责任体系和有效的评价机制,以确保教师在自主发展和教育教学过程中承担相应的责任,进而促进教师的专业化发展。

关键词：教师专业化专业责任美国教师评价

Crust Structures and Tectonic Evolution of Northeast china in Mesozoic

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Global Geology 1999年第2期4卷 166-171页

作者： Cao Chengrun and Cao Lin (changchun university of Sciences Technology, china, 130026)

On the basis of geophysical analyses, the crust structure of Northeast china app ears to be three layers in section and to be three abnormal zones horizontally, which extend at NNE-NE direction. Mesozoic era was an important period to the c hanging of tectonic settings and geodynamic mechanism. Deep faults activated and volcanoes exploded violently in Mesozoic era. Moreo ver, a number of sedimentary basins associated with mountain sets in the region formed at that time. The main tectonic framework in the region displays three NN E-NE strike zones which are composed of mountains of volcanic rocks, sedimentar y basins and deep faults of Mesozoic respectively. The formation and evolution of them were controlled by crustal or lithospheric structure.

关键词： Crustal structure deep fault volcanic rock sedimentary basin plate

Amplitude-difference method in the estimation of ultrasonic attenuation

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Chinese Journal of Acoustics 1990年第3期9卷 256-262页

作者： LIN Chuan, ZHOU Kangyuan, ZHANG Daofa ZHU Shihong(university of Science & Technology of china)LIN Liwu YE Zheng(The Union Hospital of Fujian Medical college)

In this paper a new method of ultrasonic quantitative diagnosis is discribed. This method can elminate the effect of system deviation and lessen the the effect of beam radiation diffraction. In can be spplied together with many kinks of B-scanners. To verify the method, this paper has shown a new method to make a tissue phantom and a special apparatus. The results show that the method is useful in the diagnosis of diffuse liver diseases, tumors and *** is also useful in the appraisal of the health and the stages of fetus.

关键词： deviation attenuation ultrasonic verify appraisal scanner overlap diffuse thick assumed

Artificial Ant Algorithm for Constrained Optimization

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Journal of Systems Science and Systems Engineering 2001年第1期13卷 57-61页

作者： MA Liang, WANG Long de college of Management, university of Shanghai for Science and Technology, Shanghai 200093, china college of Management University of Shanghai for Science and Technology Shanghai 200093 China

：In this paper, we propose a new artificial ant algorithm for solving constrained optimization problems in general case. Numerical examples show that it is effective and robust.

关键词： ant algorithm constrained optimization

A computational investigation on random packings of sphere-spherocylinder mixtures

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Science china(Physics,Mechanics & Astronomy) 2010年第12期53卷 2284-2292页

作者： LU Peng, LI ShuiXiang , ZHAO Jian & MENG LingYi State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics & Aerospace Engineering, college of Engineering, Peking university, Beijing 100871, china 1. State Key Laboratory for Turbulence and Complex Systems Department of Mechanics & Aerospace Engineering College of Engineering Peking University Beijing 100871 China

Random packings of binary mixtures of spheres and spherocylinders with the same volume and the same diameter were simulated by a sphere assembly model and relaxation algorithm. Simulation results show that, independently of the component volume fraction, the mixture packing density increases and then decreases with the growth of the aspect ratio of spherocylinders, and the packing density reaches its maximum at the aspect ratio of 0.35. With the same volume particles, results show that the dependence of the mixture packing density on the volume fraction of spherocylinders is approximately linear. With the same diameter particles, the relationship between the mixture packing density and component volume fraction is also roughly linear for short spherocylinders, but when the aspect ratio of spherocylinders is greater than 1.6, the curves turn convex which means the packing of the mixture can be denser than either the sphere or spherocylinder packing alone. To validate the sphere assembly model and relaxation algorithm, binary mixtures of spheres and random packings of spherocylinders were also simulated. Simulation results show the packing densities of sphere mixtures agree with previous prediction models and the results of spherocylinders correspond with the simulation results in literature.

关键词： packing binary mixture sphere spherocylinder packing density aspect ratio

Exploration and Practice of Personnel Cultivation for Agricultural Mechanization and Automation Specialities

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Asian Agricultural Research 2012年第1期4卷 71-73,77页

作者： ZHANG Qiang, YU Lu-lu, YU Jian-qun, SUN Yu-jing School of Biological and Agricultural Engineering, jilin university, changchun 130022, china

Firstly, based on significance of developing agricultural mechanization and automation and current situations of agricultural mechanization and automation specialities in colleges and universities, we put forward objectives of personnel cultivation for agricultural mechanization and automation specialities. Then, we analyze the exploration and practice of personnel cultivation for agricultural mechanization and automation specialities from four aspects, including course system setting, teaching materials construction, laboratory construction, and construction of practical teaching link. Finally, it is expected to provide references for running schools and cultivating excellent professional personnel.

关键词： Agricultural mechanization and automation Personne