VA菌根感染含羞草的研究初报

用盆栽方法研究了灭菌条件下接种两种 Ｖ Ａ 菌根真菌对含羞草生长的影响。结果表明,接种 Ｖ Ａ 菌根真菌能显著地提高菌根的侵染率,植株高度、地下部鲜重和地上部鲜重明显高于对照株。两种 Ｖ Ａ 菌根的感染效果几乎相同     

非灭菌条件下VA菌根真菌对紫茉莉幼苗生长的影响

用盆载方法研究了非灭菌条件下,接种ＶＡ菌根真菌Ｓｅｌｅｒｏｃｙｓｔｉｓ ｓｉｎｕｏｓａ对紫茉莉幼苗生长发育的影响。结果表明,中ＶＡ菌根真菌能提高ＶＡ菌对紫茉蓝的浸染率,接种株的营养生长叶绿素含量和花青素含量优于对照株,说明接种ＶＡ菌根真菌能促进紫茉莉的幼苗生长。     

丝瓜果实发育中木质素代谢及有关导管分化的生理生化研究

丝瓜果实发育期间，随着木板素含量的不断增加，导管分子大量分化，ＰＡＬ和ＣＡＤ的活性高峰出现在木质素大量合成之前的第５天和第７天，证实ＰＡＬ和ＣＡＤ是导分子分化的标志酶，测定了ＰＯＩ，ＰＯⅡ，ＰＯⅢ的活性，结果表明，ＰＯＩ，ＰＯⅡ与木质化进程有关，ＰＯＩ同工酶的电泳结果显示，Ａ７带和Ｃ２带与木质化进程有关。     

高原型和山谷型藏山羊生态特征比较研究

对高原型和山谷型藏山羊的体态、被皮、解剖、生理和生化遗传标记等生态特征的比较研究表明：高原型比山谷型藏山羊体格较大；毛被白色者较多、毛丛较长、单位皮肤面积次级毛囊较多，产线量高；气管、肺和心脏较发达；血液中ＲＢＣ、ＷＢＣ、Ｈｂ均较高；体温、皮温均较低，两型藏山羊的Ｈｂ、Ａｌｂ、Ａｍ经电泳均显示一条带，无多态性，高原型藏山羊的Ｔｆ有３种基因型，即ＡＡ、ＡＢ、ＢＢ，而山谷藏山羊Ｔｆ只有两种基因型，即ＡＡ、ＡＢ。基因频率经ｘ检验差异不显著（Ｐ＞０．０５）。两型藏山羊的ＡＫＰ同工酶均有两种基因型，即ＡＫＰＦ和ＡＫＰＯ，ＡＫＰ基因频率经ｘ检验差异不显著（Ｐ＞０．０５），不论是高原型还是汕谷型藏山羊的ＥＳ同工酶均有多态性，都有３个带，但两者的Ｅ＿ｓ同工酶带有明显差异，区带－Ⅱ－２、带－Ⅲ－３、带－Ⅱ－４、带－Ⅲ－２对应比较，差异极显著（＞０．０１）；带－Ⅰ－１、带－Ⅰ－３、带－Ⅲ－１对应比较差异显著（Ｐ＜０．０５），高原型和山谷型山羊的ＬＤＨ同工酶均有５条带，其活力顺序均为ＬＤＨ＿１＞ＬＤＨ＿３＞ＬＤＨ＿２＞ＬＤＨ＿５＞ＬＤＨ＿４，各带对应比较，两个生态类型藏山羊间ＬＤＨ＿１、ＬＤＨ＿２活力差异极显著（Ｐ＞０．０１）；     

球形大孔聚氯乙烯树脂的化学转化Ⅲ.硫脲树脂的合成及其性能研究

球形大孔聚氯乙烯树脂（ＰＶＣ）与多乙烯多胺反应，生成胺化交联树脂．胺化树脂与含硫试剂和异硫氰酸苯脂反应，制得不同硫脲结构的ＴＵ－Ⅰ和ＴＵ－Ⅱ螯合树脂．ＴＵ－Ⅰ对Ａｕ（Ⅲ），Ｐｔ（Ⅳ），Ｐｄ（Ⅱ）有很大的饱和吸附量，吸附Ａｕ（Ⅲ）时出现边吸附边还原析出金的现象．ＴＵ－Ⅱ在低酸度下对Ｐｄ（Ⅱ）的吸附率仅为１５％，而对Ａｕ（Ⅲ），Ｐｔ（Ⅳ）的吸附率仍在９０％以上．ＴＵ－Ⅰ，ＴＵ－Ⅱ不吸附或少量吸附贱金属离子，显示出对贵金属离子的高选择性吸附能力，具有一定的应用前景     

果树VA菌根研究进展

综述了果树ＶＡ菌根真菌的资源及分类；形态解剖；ＶＡ菌根对果树的效应及在果树上的应用。     

果树VA菌根研究进展

综述了果树ＶＡ菌根真菌的资源及分类；形态解剖；ＶＡ菌根对果树的效应及在果树上的应用。     

斜纹夜蛾NPV多角体基因的克隆和部分测序

本文对ＳＩＮＰＶ基因组作了酶解分析，测得其基因组大小为１４５ｋｂ，并用双酶法确定了ＳＩＮＰＶ基因组的ＨｉｎｄⅢ和ＰｓｔⅠ物理图谱。以含ＡｃＮＰＶ多角体基因的质粒ｐＡＣ－Ⅰ的ＳａｌＩ－Ｃ片段为探针，对ＳＩＮＰＶＤＮＡ酶切片段ｓｏｕｔｈｅｒｎ转印杂交结果，初步判断多角体基因定位于ＰｓｔＩ－Ｂ／Ｃ／Ｄ片段、ＢｇｌⅡ－Ｃ／Ｄ片段、ＢａｍＨＩ－Ｂ／Ｃ片段和ＥｃｏＲＩ－Ａ／Ｂ片段上，且ＳＩＮＰＶ与ＡｃＮＰＶ多角体蛋白基因有６４％的同源性，而以大肠仟菌质粒ｐＵＣ１９为载体对ＳＩＮＰＶ的多角体基因试克隆，得到带有ＢｇｌⅡ－ＰｓｔⅠ双酶切片段的２个克隆子。对这两个杂交阳性克隆子之一的核苷酸序列测定，表明插入片段与ＢｍＮＰＶ多角体基因上游序列亦有一定同源性。     

低温处理对三种作物幼苗生长及组织内POD、ATP_（ase）同工酶的影响

为了研究三种作物中ＰＯＤ、ＡＴＰａｓｅ同工酶的变化与低温忍耐的关系，我们将三种作物幼苗在０—４℃低温下处理１周，然后检查三种作物根系中的ＰＯＤ、ＡＴＰａｓｅ同工酶，结果发现，低温处理下的三种作物根系中的ＰＯＤ同工酶谱带减少，该同工酶的变化与作物的耐低温能力存在一定的相关性。     

1—4℃低温对番茄,菜花幼苗生长及胚轴同工酶的影响

１－４℃低温下培养番茄、菜花两种蔬菜幼苗发现，番茄对寒害反应敏感，菜花则耐寒性很强，测定两种幼苗胚轴内ＡＴＰａｓｅ、ＰＯＤ同工酶发现，番茄中两种酶同工酶的谱带数减少，菜花中同工酶未见变化，表明蔬菜幼苗耐寒性强弱与胚轴内ＡＴＰａｓｅ，ＰＯＤ同工酶的变化呈明显的相关性，这一结果可为探讨蔬菜幼苗的耐寒性机理提供依据。     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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