几种沙生植物光合碳代谢途径关键酶的研究

研究了分布于甘肃省临泽地区的沙拐枣、珍珠、霸王、泡泡刺、胡杨等５种沙生植物的光合酶：果糖－１．６－双磷酸酯酶（ＦＤＰａｓｅ）、１．５－二磷酸核酮糖羧化酶（ＲＵＢＰｃａｓｅ）、磷酸烯醇式丙酮酸羧化酶（ＰＥＰｃａｓｅ）、ＮＡＤ－苹果酸脱氢酶（ＮＡＤ－ＭＤＨ）活性的季节变化。结果表明，珍珠和沙拐枣的ＦＤＰａｓｅ酶活性远低于其它几种材料；珍珠、霸王、沙拐枣的ＰＥＰｃａｓｅ活性明显高于其它两种材料；珍珠、沙拐枣的ＮＡＤ－ＭＤＨ活性明显高于其它三种材料。可见，珍珠、霸王是ＣＡＭ植物，沙拐枣是Ｃ４植物，胡杨是Ｃ３植物，泡泡刺有可能在干旱协迫下由Ｃ３向Ｃ４或ＣＡＭ途径转化。     

人工繁殖恒河猴血清酯酶、乳酸脱氢酶、淀粉酶、碱性磷酸酶生化位点遗传多态性研究

本文采用聚丙烯酰胺不连续垂直凝胶电泳方法研究了人工饲养恒河猴（Ｍａｃａｃａｍｕｌａｔｔａ）的血清乳酸脱氢酶（ＬＤＨ），醋酶（Ｅｓ），碱性磷酸酶（ＡＫＰ），淀粉酶（Ａｍｙ）等生化位点多态性的分布，结果表明，四种同工酶生化基因位点均具有遗传多态性。ＬＤＨ多态性表现在ＬＤＨ４和ＬＤＨ５有差异，醋酶图谱发现五种酯酶带，其中Ｅｓ－１，Ｅｓ－３、Ｅｓ－５无差异，而Ｅｓ－２和Ｅｓ－４具多态性。     

草鱼同工酶的组织分布及遗传结构分析

采用聚丙烯酰胺垂直板状连续电泳的方法，对草鱼（Ｃｔｅｎｏｐｏｈａｒｙｎｇｏｄｏｎｉｄｅｌｕｓ）的脑（Ｂ）、晶体（Ｅ）、心脏（Ｈ）、肾脏（Ｋ）、肝脏（Ｌ）、肌肉（Ｍ）等六种组织进行了十一种同工酶（α－ＡＭＹ，ＥＳＴ，ＧＯＴ，Ｇ３ＰＤ，Ｇ６ＰＤ，ＩＤＨ，ＬＤＨ，ＭＤＨ，ＭＥ，ＰＯＸ，ＳＯＤ）的电泳研究，并对各种酶的同工酶位点及酶谱表型进行了分析，其中α－ＡＭＹ和ＰＯＸ还未见报道。结果表明α－ＡＭＹ，ＥＳＴ，Ｇ３ＰＤ，ＬＤＨ，ＭＤＨ，ＭＥ，ＰＯＸ，ＳＯＤ存在不同程度的组织特异性，ＧＯＴ和Ｇ６ＰＤ则无明显组织差异。对草鱼的α－ＡＭＹ，Ｇ３ＰＤＹ和ＰＯＸ的遗传基础、亚基组成及ＬＤＨ特殊的酶谱表达模式等问题进行了讨论。     

JOURNAL OF THE UNIVERSITY OF PETROLEUM,CHINA(Edition of Natural Science)Vol.26 2002 CONTENTS

·ＰＥＴＲＯＬＥＵＭＧＥＯＬＯＧＹＡＮＤＧＥＯＰＨＹＳＩＣＡＬＥＸＰＬＯＲＡＴＩＯＮ·ＨｉｇｈｒｅｓｏｌｕｔｉｏｎｓｅｑｕｅｎｃｅｓｔｒａｔｉｇｒａｐｈｙｆｏｒｔｈｅｆｉｒｓｔｍｅｍｂｅｒｏｆｅｏｇｅｎｅＤｏｎｇｙｉｎｇｆｏｒｍａｔｉｏｎｉｎＭｉａｏ 2 8ｘ1ｔｒａｃｔｏｆＪｉｄｏｎｇｏｉｌｆｉｅｌｄＹＩＮＺｈｉ ｊｕｎ ,ＰＥＮＧＳｈｉ ｍｉ,ＨＵＡＮＧＳｈｕ ｗａｎｇ ,ｅｔａｌ(1- 1)…………………………Ｐｈｙｓｉｃａｌｐｒｏｐｅｒｔｉｅｓｏｆｒｅｓｅｒｖｏｉｒａｎｄｉｎｆｌｕｅｎｃｉｎｇｆａｃｔｏｒ…     

模拟污水中氮,磷对水稻劝苗过氧化氢酶和乙醇酸氧化酶…

以水稻为材料，研究了不同深度的模拟污水中Ｎ、Ｐ对幼苗过氧化氢酶（Ｃａｔａｌａｓｅ，ＣＡＴ，ＥＣ１．１１．１．６）、乙醇酸氧化酶（Ｇｌｙｃｏｌａｔｅｏｘｉｄａｓｅ，ＧＯ，ＥＣ１．３．３．１）、过氧化和物酶（Ｐｅｒｏｘｉｄａｓｅ，ＰＯＤ，ＥＣ１．１１．１．７）和叶绿素含量的影响。结果表明：低浓度Ｎ、Ｐ浓度分别超过８．５６ｍｍｏｌ．Ｌ＾－１和０－０．２ｍｍｏｌ．Ｌ＾－１范围）可诱导ＣＡＴ活性增大，而后下     

Epidemiologische Aspekte des Alkoholismus unter Besonderer Bercksichtigung Geschlechtsspezifischer Unterschiede

ＳｅｉｔｚＧ．Ｅ．（Ｍｅｄ．Ｋｌｉｎｉｋ,ＫｒａｎｋｅｎｈａｕｓＳａｌｅｍ,Ｈｅｉｄｅｌｂｅｒｇ．）ＤｉｅＡｌｋｏｈｏｌｋｒａｎｋｈｅｉｔｂｅｒｕｈｔａｕｆｇｅｎｅｔｉｓｃｈｅｎｕｎｄｕｍｗｅｌｔｂｅｄｉｎｇｔｅｎＦａｋｔｏｒｅｎ,ｗｏｂｅｉｇｅｓｃ...     

Microbial Diversity and Resources

ＭｉｃｒｏｂｉａｌＤｉｖｅｒｓｉｔｙａｎｄＲｅｓｏｕｒｃｅｓＬｉｕＺｈｉｈｅｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＭｉｃｒｏｂｉｏｌｙ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ，Ｐ．Ｒ．Ｃ．）ＭｉｃｈａｅｌＧｏｏｄｆｅｌｏｗ（Ｕｎｉｖｅｒｓｉｔｙｏｆ...     

木霉4131菌株纤维素酶的分离纯化和部分性质研究

绿色木霉（Ｔｒｉｃｈｏｄｅｒｍａ Ｖｉｒｉｄｅ）突变菌株４１３１＾［１］产生的纤维素酶经过ｓｅｐｈａｄｅｘＧ－７５和ＤＥＡＥ－ｓｅｐｈａｄｅｘ－Ａ－２５两种层析分离,分离得到具有内切α－葡聚糖酶（ＣＭＣａｓｅ）活性的纯组分,提纯后酶的比活力提高到原来的２６．２倍;回收率为３２．８％,分子量为５６９００,等电点为４．０,最适反应温度为５５℃,最适ｐＨ为４．５,金属离子Ｋ＾＋,Ｎａ＾＋,Ｍｇ＾２＋对其     

HIV/AIDS-Prvention in der Bundesrepublik Deutschland

ＷｅｉｋｅｒｔＭ．（ＡｂｔｅｉｌｕｎｇＡｂｅｉｔｓｃｌｕｔｚ,Ｇｅｓｕｎｄｈｅｉｔｓｖｅｒｓｏｒｇｕｎｇ,ＧｅｓｕｕｄｈｅｉｔｕｎｄＵｍｗｅｌｔ,２０１４８,Ｈａｍｂｕｒｇ／Ｇｅｒｍａｎｙ）ＤｅｒＥｒｆｏｌｇｄｅｒｂｕｎｄｅｓｄｅｕｔｓｃｈｅｎＡＩＤ...     

濒危植物缙云卫矛的同工酶变异及生态遗传分化

运用电泳技术，测定了重庆北碚特产的缙云卫矛（Ｅｕｏｎｙｍｕｓｃｈｌｏｒａｎｔｈｏｉｄｅｓ）３个居群３６个个体功能叶片的过氧化物酶（Ｐｅｒｏｘｉｄａｓｅ，ＰＯＤ），酸性磷酸酯酶（Ａｃｉｄｐｈｏｓｐｈｏｅｓｔｅｒａｓｅ，ＡＣＰ）的同工酶谱带，并进行编码；然后采用ＲｏｇｅｒｓＴａｎｉｍｏｔｏ结合系数的组平均法（ＵＰＧＭＡ）对各酶谱带进行聚类分析；同时结合遗传杂合度（Ｈｅ）、遗传相似性系数（Ｉ）、遗传距离（Ｄ）进行分析．结果表明，来自同一居群的个体，不但同工酶谱相似性高、遗传杂合度小，而且遗传相似性系数大、遗传距离小，显示出居群内个体遗传分化小；显示出居群之间的个体却刚好相反．这是由于其特殊的生殖方式和环境隔离所致．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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