束状全列虫（Holosticha diademata）无性生殖期？…

应用蛋白银技术研究了海洋纤毛虫束状全列虫无性性殖期间的细胞发生学,其主要特征为：１）口原基（后仔虫）出现于横棘毛的前方、中腹棘毛列的左侧;老的口围带无需再建而由前仔虫简单继承;２）单一口棘毛来自第一列ＣＡ原基,２根额前棘毛源于最后一刻ＣＡ原基并且所有原基（除第一列ＣＡ原基）均参与了横棘毛的形成;３）缘棘毛在发生上稍晚于背触毛,并且在前／后仔虫表现没步;４）背触毛为一组发生式。     

宽口虫无性生殖周期中核器和纤毛器的演化

利用改进的蛋白银染色法，研究了宽口虫的形态及其无性生殖周期中核器和纤毛器的发育演化过程。其发生过程为：１．大核改组带出现后，口原基出现在老口围带后方之腹棘毛左侧，其内的毛基体组装成整齐排列的小膜，构成新ＡＺＭ，老ＡＺＭ后部也发生部分更新的现象。２．额腹横棘毛基各５例，分别以３：３：３：４：３方式分化成前、后仔虫的额、腹、横棘毛。３．在第１￣３列背触毛中，分别于前、后仔虫的中部范围产生第１－３列新原     

史氏尖毛虫无性生殖中核器及纤毛器的演化

研究了史氏尖毛虫（Ｏｘｙｔｒｉｃｈａ ｓｈｉｉｘ）无性生殖周期中及纤毛器的发育演化过程。其结果为：１．大核复制带了出现后,口原基最出现在左边等一根横棘毛的左侧,后逐渐向前增生,构成一长形原基带。由口原基的前右角汾化出波动魇基,同时在该处向后组装整齐排列的小膜,构成新的ＡＺＭ,老ＡＺＭ完整地被前仔虫继承。２．额腹横棘毛原基各５例,分别在３：３：３：４：４方式分化成前后仔虫的额腹横棘毛。３．背触毛８￣     

敏捷瘦体虫（Yrosomoida agiliformis FOISSNER,1982）无性生殖…

敏捷瘦体虫（Ｕｒｏｓｏｍｏｄｉａ ａｇｉｌｉｆｏｒｍｉｓ ＦＯＩＳＳＮＥＲ，１９８２）为小型腹毛目纤毛虫。利用银染法对该种二分裂期间的形态发生学进行初步研究，指出该虫形态发生的主要过程为：１．伴随大核改组带的出现，口原基发生于老口围带的下方，后演化为后仔虫的口围带。在前仔虫，老口围带及口侧膜完全保留并被继承；２．体棘毛场首先出现后一组棘毛原基，后形成前棘毛场，随后各自独立演化成前后仔虫的８：３／４     

束状全列虫(Holostich adiademata)无性生殖期间的形态发生研究

应用蛋白银技术研究了海洋纤毛虫束状全列虫无性生殖期间的细胞发生学 ,其主要特征为 :1 )口原基 (后仔虫 )出现于横棘毛的前方、中腹棘毛列的左侧 ;老的口围带无需再建而由前仔虫简单继承 ;2 )单一口棘毛来自第一列CA原基 ,2根额前棘毛源于最后一列CA原基并且所有原基 (除第一列CA原基 )均参与了横棘毛的形成 ;3)缘棘毛在发生上稍晚于背触毛 ,并且在前 /后仔虫表现不同步 ;4)背触毛为一组发生式 .     

小腔游仆虫Euplotes aediculatus形态和形态发生的研究

本工作主要采用蛋白银染色技术对小腔游仆虫Ｅ．ａｅｄｉｃｕｌａｔｕｓ形态和形态发生进行了描述和研究,从银线系角度及发生角度上证明该虫尾部的四根棘毛的来源不同。由此建议把左边两根看成是左缘棘毛减少至两根的情形并称之为左缘棘毛。讨论了长期存在混淆的Ｅ．ａｅｄｉｃｕｌａｔｕｓ和Ｅ．ｅｕｒｙｓｔｏｍｕｓ的区别,并确证本实验所用材料为前者。     

小腔游仆虫形态和形态发生的研究

本工作主要采用蛋白银染色技术对小腔游仆虫形态和形态发生进行了描述和研究，从银线系角度及发生角度上证明该虫尾部的四根棘毛的来源不同，由此建议把左边两根看成是左缘棘毛减少至两根的情形并称之为左缘棘毛，讨论了长期存在混淆的区别，并验证本实验所用材料为前者。     

虎眼万年青不同形态发生途径激素调控的初步研究

用虎眼万年青鳞片外植体在ＭＳ培养基上实现了不同形态发生途径的激素调控。结果显示，生长素和细胞分裂素两类激素的不同组合和浓度搭配都是影响形态发生途径的关键因素，甚至前者更为重要。就最佳激素组合和浓度搭配而言，ＮＡＡ０．５ｍｇ／Ｌ＋ＢＡ０．５ｍｇ／Ｌ和ＮＡＡ０．５ｍｇ／Ｌ＋ＫＴ０．５ｍｇ／Ｌ分别诱导体细胞胚和不定芽直接发生；２，４－Ｄ４．０ｍｇ／Ｌ＋ＢＡ１．０ｍｇ／Ｌ诱导愈伤组织；２，４－Ｄ０．１ｍｇ     

卡龙游仆虫分类地位的研究

利用蛋白银、孚尔根和银浸等染色方法对Ｅ．ｃｈａｒｏｎ的形态结构、形态变异性及分类地位进行了研究．Ｅ．ｃｈａｒｏｎ表面有额腹、横、尾部棘毛１０、５、４根,背触毛１２列,相邻两背触毛之间有两排银线网格,大核倒Ｃ形,小核球形。随机抽取１００个Ｅ．ｃｈａｒｏｎ,对其长,宽、棘毛数、背毛列进行统计,做出直方图进行分析,并与Ｅ．ｐａｔｅｌｌａ做详细比较,作认为Ｅ．ｃｈａｒｏｎ应独立的为一个种。     

一种腹柱虫(Gastrostyla sp.)棘毛的数目变异和生理改组的观察

关于腹毛目纤毛虫棘毛数目的变异已有许多报道,有的种类变异幅度较小,如游仆虫（Ｅｕ－ｐｌｏｔｅｓ）的尾棘毛在２～３根之间变化［１］．有些种类变异的范围和幅度较大,如Ａｍｐｈｉｓｉｅｌｌｉｄａｅｓｐ．［２］．施氏腹柱虫（Ｇ．ｓｔｅｉｎｉｉ）［３］和刺木盾纤虫（Ａｓｐｉｄｉｓｃａａｃｕｌｅａｔａ）［４］．产生这种变异的内在原因　图１　Ｇａｓｔｒｏｓｔｙｌａｓｐ．腹面形态　Ｆｉｇ．１　Ｍｏｒｐｈｏｌｏｇｙ（Ｖｅｎｔｒａｌｖｉｅｗ）ｏｆＧａｓ－ｔｒｏｓｔｙｌａｓｐ．尚不清楚．在刺木盾纤虫上观察到,形态发生…     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-