昆虫化学生态学与植物保护

在生态安全条件下进行植物保护，推行植物免害工程是实现可持续发展的有效途径之一。笔综述了昆虫化学生态学中昆虫与植物之间、昆虫与天敌间的化学联系，信息素与植物挥发性物质在昆虫对寄主植物定位、定居、取食和繁殖中的作用，非寄主植物对植食性昆虫寄主选择的影响等领域的研究进展，以及利用植物次生性化合物进行害虫治理的应用现状。展示了昆虫化学生态学在未来植物保护中的应用前景及昆虫化学生态学的研究方向。     

内蒙古长蝽科昆虫及中国新记录属种记述

对内蒙古长蝽科(Lygaeidae Schilling)昆虫种类、分布、寄主、外生殖器的比较解剖、区系分析等进行了较系统的研究．记录了内蒙古长蝽科71种昆虫．隶属于11个亚科39属，对1个中国新记录属(Raglim Stal．，1872)和2个中国新记录种(Hyalocoris Vinokurov和Drymus orientalis Kerzhner)进行了描述，并对国内原有记载的个别种进行了修订．     

虫草的研究与开发利用

本文综述了我国虫草研究和开发利用的最新进展,分别概述了虫草种类与分布、寄主昆虫、生态环境、药用价值、液体深层培养及人工驯化栽培等方面的研究现状。并对虫草研究与利用前景作了展望。     

昆虫对榕树的适应进化

传粉榕小蜂和榕树形成了传粉昆虫与植物间互利共生的典范.除了传粉榕小蜂外,榕果内还存在多类非传粉榕小蜂以及蝇类、蛾类、甲虫类等昆虫,这些昆虫在形态和生活史等方面形成了对榕树的适应;一些种类对榕树具有种层次上的寄主专一性,存在对寄主植物的适应辐射.而那些生活在榕树其它部位的昆虫对榕树的寄主专一性则相对较低.     

昆虫对寄主植物选择的化学感受机理

在植物-昆虫的相互关系中,昆虫的化学感受器起着非常重要的作用。利用这些化学感受器,昆虫可感知来自植物的各种化学信息,并由此而做出相应的行为反应。本文对昆虫的寄主选择行为和昆虫的化学感受机理进行了概述,以期为害虫综合治理提供理论依据和实践指导。     

生物防治作物病虫害动态

上海昆虫研究所寄生蜂组自一九六七年开始,进行了寄生蜂防治农作物害虫的研究。五年多来,他们在上海、太湖流域和两广稻区对水稻三化螟卵的寄生峰种类和自然杀伤害虫作用进行了调查和利用啮小蜂防治三化螟的研究。通过调查,初步掌握了上海、太湖和两广一些地区螟卵寄生蜂的一些分布情况,为开展以虫治虫提供了一些科学数据;在此基础上,着重对螟卵啮小蜂接种培养、寄主情况和放蜂治螟等进行了试验,对利用螟黄赤眼蜂防治稻纵卷叶螟和     

植物挥发性次生物质对昆虫的行为调控及其机制

植物挥发性次生物质是植物在代谢过程中产生的一些短链碳氢化合物及其衍生物，在植食性昆虫的寄主植物定位、交配、寻找合适的产卵场所、取食等行为调控中起重要作用，还可调节天敌寻找寄主等行为，以及作为植物的间接防御手段和昆虫外激素的协同素。综述植物挥发性次生物质对昆虫的行为调控及其作用机理，进一步分析植物挥发性次生物质在害虫防治中的发展前景。     

新疆垦区蝽类昆虫鉴定

笔者近两年对新疆垦区蝽类昆虫作了调查、采集、制作，经第２批鉴定，鉴定出１０科１８个种．本文对其形态特征、分布和寄主均作了记述，并对每个种类绘制了主要形态特征图，编制了科和种的检索表．为今后研究与控制蝽类昆虫提供了依据．     

蒙自桤木根瘤的显微结构

蒙自桤木（Alnus nepalensis)根瘤内生菌－Frankia菌感染寄主根部后能形成一个围绕中柱维管束的含菌组织，在受感染的寄主细胞内，Frankia菌的菌丝从寄主细胞中央开始生长，菌丝生长的同时，受感染细胞的体积也随之增大，最后，菌丝顶端膨大，在靠近寄主细胞壁的区域形成泡囊从而成为成熟的固氮根瘤。     

甘肃小陇山林区鞘翅目类昆虫调查初报

根据林业有害生物普查结果,甘肃省小陇山林区计有鞘翅目昆虫9科93种。报道了该区鞘翅目类昆虫名录、寄主、分布及其危害程度。     

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。     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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     

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