子午岭的爬行动物

子午岭的爬行动物共有３目、７科、１２属、１５种及亚种，其中本次调查时的新纪录ａ种及亚种，占总种数的５３．３％；在区系成份上，古北界种类最多，占总种数的５３．３％。     

广西海岛昆虫生态地理

报道广西沿海岛屿昆虫生态地理考察结果，已定名的种类有３１９种，分别隶群于１４目８８科２３４属，磷翅目为２８．５％，鞘翅目为１９．１２％，直翅目为１６．１６％。与整岛种数多，反之较少，与是否陆联岛无关，不同岛屿昆虫种数不一样，面积大的岛种数多，反之较少，与是否陆联岛无关。不同岛屿的昆虫各类组成不一样，在涠洲岛上有５８．２％的鳞翅目种娄及５４．７％的直翅目种类出现，在龙门岛上有５０．８％的鞘翅目种类出     

河南省鸡公山自然保护区的野生果树资源及其特点

河南鸡公山是国家级自然保护区，属于北亚热带向暖温带过渡地区，有丰富的野生果树资源，经调查有18科，39属，108种(含变种)．种类最多的科是蔷薇科，有12属，41种，占总种数的38％；种类最多的属是悬钩子属，有17种，占总数的16％．含野生果树资源10种以上的大科有4科，共75种，占总种数的69．4％．按食用方式分类，水果类有67种；干果类有7种；淀粉类有13种，饮料类21种．鸡公山的野生果树资源明显多于近纬度其他地区，且高价值的野生果树较多。     

山东省外来种子植物研究初报

本文报道了山东省外来种子植物474种(含种下单位35，下同)，涉及92科、310属。从科的区系分析发现：来自热带植物区系的有46科，占总科数的50．0％，具有明显优势；来自温带的27科，占29．3％。从其中278个属的区系分析可见：各热带分布属(135)占总属数的43．5％，具有明显优势；各温带分布属有122个，占总属数的39．4％。从来源途径分析可见：作为观赏植物引进的有307种，占总种数的64．8％，是主渠道；作为粮食、蔬菜、水果、木材及药材等经济植物引种而来的有137种，占总种数的28．9％；自由扩散而来的有30余种。从外来后的影响看，有益的有455种，占总种数的96．0％；明显有害的仅十余种。     

广西田阳敢壮山种子植物多样性分析

敢壮山植物区系有种子植物254种,隶属于207属75科。种子植物区系成分在科和属的水平上均以泛热带分布为主。分析Raunkiaer生活型组成,高位芽植物以148种,占总种数的58．3％而居首位;Drude生活型组成以木本植物占优势,共143种,占总种数的56．3％。在水分生态类型中,中生植物共234种,占总种数的92．1％,而水生植物仅有2种,占总种数的0．8％。根据经济用途的不同,把植物资源分为10类。分析结果表明,敢壮山种子植物的多样性较为丰富。     

陇东子午岭林区的蝶类及区系研究

１９８９－１９９８年间进行了子午岭林区蝶类及区系研究,共采集蝶类标本３０００余号,初步鉴定为１１４种,隶属于８科７５属,其中甘肃省新记录种３８种,区系分析表明,古北界的种类为７１种,占总种数的６２．２８％;东洋界的４种,占总数的３．５１％,广布种为３９种,占总数的３４．２１％,显然,古北界的种类占优势。     

呼伦贝尔草原野生豆科牧草资源及植物生态地理区系分析

对呼伦贝尔草地野生豆科牧草的属种组成、生长习性、饲用价值及植物区系进行了研究.结果表明:呼伦贝尔草地现有豆科植物17属64种.这些豆科牧草的生长型中多年生草本植物有52种,占总种数的81.25％;水分生态型中各类中生种类有53种,占总种数的82.81％;大多数种类对典型草原和丘陵草甸草原生境的适应性良好;优等和良等牧草...     

山西水神堂泉藻类植物的研究

对山西广灵水神堂泉藻类植物的种类组成进行了研究，并对其污染程度及营养水平进行了评价．经鉴定，水神堂泉共有藻类植物65种，隶属4门，21科，37属．其中，以硅藻门的种类最多，有10科，20属，42种，约占总种数的64．62％．其次是绿藻门，有7科，10属，13种，约占总种数的20．00％，蓝藻门有3科，6属，9种，约占总种数的13．85％，轮藻门1科，1属，1种，约占总种数的1．53％．对其水质进行评价的结果表明，水神堂泉水已受到了严重污染，为重度富营养水体。     

安徽祁门县查湾植物区系特征

安徽祁门县湾山地有维管束植物９８３种（包括种以下单位）隶属于５０５属１４６科，根据该区种子植物４６０属的分析，有１４个分布区类型其中热带分布类型１８８属，占该区总属的４５．３％；亚热带，温带分布类型２２７属，占该区总属的５４．７％表现出典型的中亚热带特点，种的结构以东亚成分和中国特有成分为主，占总种数的７８．５％，其中，东亚成分占３２．２％（主要是中国－日本变形）中国特有种占４６．３％，蕨类植物的     

云南澜沧江中游地区鱼类调查研究

澜沧江中游有49种鱼类,隶属5目,9科,33属。其中以鲤形目的种类最多,有34种,占总种数的69.39％;鲶形目的种类次之,有12种,占总种数的24.49％;鲤形目和鲶形目鱼类是澜沧江中游的主要类群。云县以上(鱼兆)科的种类多;在云县以下鲃亚科的种类占优势。澜沧江中游有49种鱼类,在怒江,金沙江,元江,南盘江,伊洛瓦底江等诸水系,均有较多成分的分布。故澜沧江中游的鱼类区系与毗邻水系的鱼类区系有相当程度的相似性。     

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     

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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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has