气相色谱法测定马齿苋中的EPA和DHA

本文采用气相色谱法测定马齿苋中的ＥＰＡ和ＤＨＡ。用ＦＩＤ检测器检测定量。方法检测限：ＥＰＡ为９．６×１０＾－１０ｇ;ＤＨＡ为６．８×１０＾－９ｇ。相对标准偏差：ＥＰＡ为１．８７％;ＤＨＡ为３．６６％。平均回收率：ＥＰＡ为９８．１％,ＤＨＡ为９６．２２％。     

饲粮中水份含量对肥育猪生产效果的影响

将５０头５４．３～６０．５公斤的肥育猪（长白×成华）随机分为Ａ、Ｂ、Ｃ、Ｄ、Ｅ５组，风干料与水的比例分别１：１、１：２、１：３、１：４和１：５，结果表明，Ａ组日增重、每增重１公斤耗ＤＥ和ＣＰ分别为５７９．５克、１３．１５４兆卡和６０９．３克；相应的Ｂ组为５８０．３克，１３．１兆卡和６０９．３克；Ｃ组为５７２．１克１３．１４１兆卡和６０８．８克；Ｄ组为５６３．３克、１３．１９２兆卡和６１１．４克；Ｅ组为５４８．４克、１３．１１５兆卡和６２１．８克。Ａ、Ｂ两组日增重显著高于Ｄ、Ｅ两组。     

牦牛肝片吸虫四种抗原交叉免疫印迹分析

用牦牛肝片吸虫四种抗原分别制备四种抗血清，其ＥＳＩＳＡ效价 １：８００，１：１６００，１：３２００和１：８００．ＳＤＳ－ＰＡＧＥ电泳区带组分分别为２５，２４，１８和９条带；免疫印迹结果，各种抗清与相庆抗原作用的主要抗原成份分别为５，１０，７和３；四种抗原中存在的共同抗原为１７．２ｋＤ；特征抗原ＨＡ为２９．９ｋＤ，ＳＡ为２７．２ｋＤ的２４．３ｋＤ；正常兔血清与各个抗原间均未出现免疫反应。     

溴化苄对二乙基胺甲基膦酸锆的季铵化及三相催化反应

首次制得二乙基胺甲基膦酸锆－亚磷酸锆Ｚｒ（ＨＰＯ＿３）＿（２－ｘ）·（Ｏ＿３ＰＣＨ＿２ＮＥｔ＿２）＿ｘ·Ｈ＿２Ｏ（ＺＤＥＡＭＰ－ＺＰ，ｘ＝０．７５，０．６０，０．５０）．将ＺＤＥＡＭＰ－ＺＰ用溴化苄季铵化，得到部分季铵化的产物：溴化苄基二乙基铵甲基膦酸锆－二乙基胺甲基膦酸锆－业磷酸锆Ｚｒ（ＨＰＯ＿３）＿（２－ｘ）·（Ｏ＿３ＰＣＨ＿２ＮＥｔ＿２）＿（ｘ－ｙ）·（Ｏ＿３ＰＣＨ＿２Ｎ￣＋Ｅｔ＿２·ＣＨ＿２Ｐｈ·Ｂｒ￣－）＿ｙ·Ｈ＿２Ｏ（Ｙ＜Ｘ，ＺＢＤＥＡＭＰＢ－ＺＤＥＡＭＰ－ＺＰ）．ＺＢＤＥＡＭＰＢ－ＺＤＥＡＭＰ－ＺＰ用于进行液／固／液或固固／液三相催化的亲核取代成醚、卤代烃和羧酸盐合成酯及二氯卡宾加成反应，均得到良好的结果。催化剂易于分离和回收，通常回收７０％～１００％，催化剂重复使用１０次以上无明显失活。     

兔角膜上皮特异性水溶性蛋白质的电泳分析

分离兔角膜上皮和皮肤表皮，提取水溶性蛋白质，采用ＳＤＳ－ＰＡＧＥ以及ＩＥＦ／ＳＤＳ－ＰＡＧＥ技术对其组成进行分析研究，发现兔角膜上皮存在５种主要特异性水溶性蛋白质，其分子量和等电点分别为：Ｍｒ６８２００，ｐＩ７．５；Ｍｒ６１７００，ｐＩ５．１；Ｍｒ５１３００，ｐＩ７．６；Ｍｒ３６３００，ｐＩ８．９和Ｍｒ２５７００，ｐＩ５．７。     

去糖基猪卵透明带抗原DGZPB和DGZPC的分离纯化及免疫特性

目的：为发展避孕疫苗研究制备去糖基猪卵透明带抗原ＤＧＺＰＢ和ＤＧＺＰＣ并研究它们的免疫反应性。方法：从阉割小母猪采集的猪卵巢分离猪卵透明带,经热溶解,Ｓｅｐｈａｃｒｙｌ Ｓ－４００和ＨＴＰ柱的分离纯化抗原ＺＰ３,经β－半乳糖苷酶消化,用反相ＨＰＬＣ分离得部分去糖基的ｐＺＰＢ和ｐＺＰＣ,再用ＴＦＭＳ处理,制备去糖基猪卵透明带抗原ＤＧＺＰＢ和ＤＧＺＰＣ。以ＭＤＰ为佐剂,用ＤＧＺＰＢ和ＤＧＺＰＣ分别免疫     

藏山羊产乳性能和乳酶及乳清蛋白的测定

对分布于青藏高原地区和山谷地区藏山羊的泌乳性能和乳清蛋白组分，及山谷地区域山羊乳酶力进行了测定，结果表明：高原地区藏山羊产乳量平均为２４．０ｋｇ，乳中营养成分含量（％）：乳脂为４．８±１．２、乳糖为４．５９±０．７５、乳蛋白为４．８７±０．６１；山谷地区藏山羊产乳量平均为３６．６２ｋｇ，乳中营养成分（％），乳脂为５．３±１．５、乳糖为４．９９±０．４５、乳蛋白为３．０８±０．４８．山谷地区的藏山羊乳酶，ＬＤＨ、ＡＫＰ，Ｒ－ＧＴ和ＬＰ和活力分别为８１．９±３７．８、７．７±３．５、４３７．４±９３．０、５３２．７±２０２．６单位，ＬＰ在体外可被１０￣（－５）ｍｏｌ／Ｌ的硫氰酸根或乳酸根活化，经琼脂糖凝胶平板电脉，可将乳ＬＤＨ分离出ＬＤＨ＿１、ＬＤＨ＿２和ＬＤＨ＿３三条带，各带所占有百分比分别为５０．６±４．５、３１．６±４．２和１７．８±３；３．采用ＳＤＳ－ｐＡＧＥ，乳清蛋白显示出五条区带，即ＳＡ、Ｉｇ－Ｈ、Ｉｇ－ｌ，β－Ｌｇ和α－Ｌａ。乳清蛋组分（％）：高原地区藏山羊ＳＡ为６．６±３．０、Ｉｇ为２２．９±６．５、β－Ｌｇ为４７．５±９．１和α－Ｌａ为２３．０±１０．６；山谷地区藏山羊相应为６．６±２．６、２     

活性基团的空间分布对混合磷酸锆-钯催化剂羰化反应催化活性的影响

用二苯基氯化膦对三乙烯四胺乙基膦酸－磷酸氢锆载体Ｚｒ（ＨＰＯ４）２－２ｘ「Ｏ３ＰＣＨ２ＣＨ２）３－ＮＨ２」ｘＨ２Ｏ（简称ＺＰ－ＴＥＴＡＥＰＡ）表面进行二苯基膦化,制得了二苯基膦化的载体ＺＰ－ＴＥＴＡＥＰＡ－ＤＰＰ和相应的负载络合钯催化剂ＺＰ－ＴＥＴＡＥＰＡ－ＤＰＰ－Ｐｄ,用ＩＲ,ＴＧ,ＤＴＡ及元素分析对它们进行了表征,着重研究了ｘ值所反映的活性基团在载体表面的空间分布对ＺＰ－ＴＥＴＡＥＰＡ－ＤＰＰ     

稀土硝酸盐与5-Br-PADAP固体配合物的合成及性质研究

在丙酮中合成出部分镧系硝酸盐与５　Ｂｒ－ＰＡＤＡ Ｐ 的固态配合物Ｌｎ（５—Ｂｒ— ＰＡＤＡＰ），（ＮＯ３）３·ｎＨ２Ｏ（Ｌｎ＝Ｌａ．Ｈｏ，Ｔｍ，ｎ＝１；Ｌｎ＝Ｓｍ，Ｅｕ，Ｇｄ，Ｔｂ，ｎ＝ ２）．屋过元素分析．红外光谱，紫外－可见光谱，热分析，Ｘ光粉末衍射物相分 析．溶解性及摩尔电导等测定．研究了配合物的有关性质。     

EXPRESSION OF HUMAN TUMOR NECROSIS FACTOR α IN ANABAENA SP.PCC7120

通过三亲结合转移方式，将含人肿瘤坏死因子α（ＴＮＦ＿α）ｃＤＮＡ和ｐｓｂＡ启动子的鱼腥藻－大肠杆菌穿梭质粒ＰＤＣ＿ＴＮＦ导入单细胞丝状鱼腥藻７１２０中．Ｓｏｕｔｈｅｒｎ杂交结果表明，人肿瘤坏死因子αｃＤＮＡ在鱼腥藻７１２０细胞中能以自主复制形式存在于ＰＤＣ＿ＴＮＦ质粒上．ＳＤＳ＿ＰＡＧＥ和免疫印迹分析结果显示，转ＰＤＣ＿ＴＮＦ的鱼腥藻７１２０可表达分子量约为１７ｋｕ的人ＴＮＦ＿α，其表达量约占藻体蛋白的１６％左右．转ＰＤＣ＿ＴＮＦ的鱼腥藻７１２０粗提液的ＴＮＦ生物学比活性约为２５×１０４ｕ／ｍｇ．     

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-