甜菜碱对蛋鸡产蛋期血清激素及环腺苷酸影响的研究

取３００日龄罗曼蛋鸡７６８羽,随机分为２组（每组设４个重复,每个重复９６羽）,在自由采食、饮水和１６ｈ／ｄ光照的条件下,分别饲喂添加０ｍｇ／ｋｇ和７５０ｍｇ／ｋｇ甜菜碱的玉米－豆粕型日粮９１ｄ。结果表明,甜菜碱使蛋鸡血清中促卵泡生成素（ＦＳＨ）、促黄体生成素（ＬＨ）和雌二醇（Ｅ２）含量分别提出了５６．５９％（Ｐ〈０．０１）,２０．７５％（Ｐ〉０．０５）和２２．０９％（Ｐ〈０．０５）;使下丘脑、腺垂     

一种日常快速分析食物中毒样品中有机磷农药的方法

采用０．５３ｍｍ宽口径毛细管柱，在带氮磷检测器（ＮＰＤ）的气相色谱上一次快速测定多种有机磷（ＯＰ）农药，结果表明，当添加ＯＰ农药水平在０．１２ｍｇ／ｋｇ－０．７０ｍｇ／ｋｇ时，７种ＯＰ农药的回收率范围为７８．８％－１０１．２％，变异系数３．４％－８．２％，方法检测限达１．１μｇ／ｋｇ－６．３μｇ／ｋｇ。无水硫酸钠对提高ＯＰ农药以提取过程中的回收率有重要作用。     

日粮中添加甜菜碱对蛋鸡生产性能及蛋壳质量的影响

将１０８只２９周龄海兰褐壳蛋鸡随机分为３组（１、２、３组，１组为对照组），每组３６只，饲喂３种不同处理的日粮６周（各组分别含甜菜碱０、１００、２００ｍｇ／ｋｇ），测定每组鸡的饲料消耗、产蛋率和平均蛋重；试验期末每组随机取鸡蛋３０杖，分别测定蛋壳厚度、蛋壳灰分含量及哈夫单位。结果表明：３组的产蛋率、产蛋量分别比１组提高９．９％和９．５％（Ｐ＜０．０１），料蛋比降低８．２％（Ｐ＜０．０１），而２组与１组相比差异不显著；平均蛋重和蛋壳厚度各组间差异不显著；哈夫单位２组和３组分别比１组高１．１％和１．８％（Ｐ＜０．０ｓ），蛋壳灰分含量分别比１组高１．３％和１．０％（Ｐ＜０．０５），表明蛋壳矿物质沉积有明显增加。     

丹皮多糖分离纯化和降血糖作用研究

用芍药科植物牡丹根皮为材料,采用三种不同的方法提取,经ＤＥＡＥ－纤维素ＤＥ－５２离子交换柱纯化,获得丹皮多糖（ＰＳＭ）纯品。动物试验证明,三种不同方法提取ＰＳＭ的纯品,在降血糖活性上有显著差异。蒸馏水浸提得到的纯品ＰＳＭ２ｂ降低血糖率为５９．９％（Ｐ＜０．０１,５０ｍｇ／ｋｇ）和５３．１％（Ｐ＜０．０１,１００ｍｇ／ｋｇ）。温水提取的纯品ＰＳＭ３ｂ降低血糖率为５５．８％（Ｐ＜０．０１,５０ｍｇ／ｋｇ体重）和４５．９％（Ｐ＜０．０５,１００ｍｇ／ｋｇ体重）,沸水提取的纯品ＰＳＭ４Ｃ无降血糖活性。     

香菇发酵液对小鼠抗衰老及增强免疫功能的评价

本文以ＢＡＬＢ／Ｃ小鼠为对象，研究香菇发酵液对小鼠某些衰老和免疫指标的影响。结果表明：香菇发醇液使脑单胺氧化酶活性下降２８．１％（Ｐ＜０．０１）；肝脏超氧化歧化酶活性增强１０．６７％（Ｐ＜０．０５）：心肌脂褐素含量降低２９．７％（Ｐ＜０．０１）．对巨噬细胞吞噬率和吞噬指数分别提高１９２．９％和１０８．７％（Ｐ＜０．０１）；迟发型过敏反应和溶血素的产生分别增强６９．４％和２６５．３％（Ｐ＜０．０１）；对胸腺和脾脏的增重（４９．０％，４５．７％）亦有极显著影响（Ｐ＜０．０１）；以上结果证明，香菇发酵液具有良好的抗衰老和增强免疫力作用，是一种理想的保健食品。     

排铅奶粉对在岗交警体内粪铅排除作用

研究了青岛市南，市北，四方三区交警在服用排铅奶粉（ＬｅａｄＥｘｃｒｅｔｉｎｇＭｉｌｋＰｏｗｄｅｒ，ＬＥＭＰ）前后，体内粪铅含量变化情况。实验结果表明，服用ＬＥＭＰ后，粪铅含量先呈上升趋势，达到最高值后，又呈下降趋势，在整个实验过程，粪铅含量四方区最高，而市南区最低。服用ＬＥＭＰ前，三叉交警铅平均含量为０．６８７ｍｇ／ｋｇ，服用７ｄ后达到峰值（１．９６ｍｇ／ｋｇ，Ｐ〈０．０１），第１５ｄ降到１．６１     

肝素及血小板激活因子对牛卵母细胞体外受精的影响

在受精液中添加不同浓度的肝素（２，６，１８，５４，１６２，４８６ｍｇ／Ｌ）均能明显提高牛卵母细胞的受精分裂率（分别为８３．６，８４．９，８５．７，８９．２，８４．５和９０．２％，比对照组７３．６％，Ｐ〈０．０５）和卵裂指数（授精后４４－４５ｈ大于２－细胞的卵裂数占卵裂总数的百分率，分别为８５．７，８５．０，８９．９，９．８７，８７．４和８５．５％，对对照组５７．６％，Ｐ〈０．０１。然而，卵母细胞的     

环磷酰胺诱导小鼠骨髓嗜多染红细胞微核阳性率分析

对环磷酰胺（４０ｍｇ／ｋｇＢＷ）诱导昆明小鼠骨髓嗜多染红细胞微核率进行了统计分析,结果表明：微核率均值雌性为３１．６８,标准差为９．４１;雄性为２８．３２,标准差为７．６７,阴性对照组微核率均值雌性为１．７８,标准差为０．５５;雄性为１．６８,标准差为０．４５,环磷酰胺组（４０ｍｇ／ｋｇＢＷ）微核率与阴性对照同性别微核率相比,均有极显著性差异（Ｐ〈０．０１）,经Ｆ检验,环磷胺组和阴性对照组每组雌,     

柄海鞘营养成分分析及提取物对小白鼠S—180实体瘤的抑制作用

柄海鞘含有１９种氨基酸,包括９种必需氨基酸。氨基酸总含量３３２．１３ｍｇ／１００ｇ湿重,必需氨基酸为１０９．８０ｍｇ／１００ｇ湿重,所测１０种矿物质成分中Ｍｇ含量较高,柄海鞘提取物（ＥＳ）通过腹腔注射（５０ｍｇ／ｋｇ体重）可有效地抑制小白鼠Ｓ－１８０实体瘤的生长,抑制率达７２．１４％（Ｐ〈０．０１）。对小白鼠的生长没有任何限制。     

小稻蝗卵营养成分分析

小稻蝗卵的营养成分分析结果表明,小稻蝗卵含碳水化合物１１．０％,还原糖０．４％,脂肪１２．８％,粗蛋白４０．４％,灰分２．４％,水分３３．２％,氨基酸总量３１．４５％,ＶＡ６９４９μｇ／ｋｇ,ＶＢ１２６．８ｍｇ／ｋｇ,ＶＥ８．７ｍｇ／ｋｇ以及丰富的矿物元素。     

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.     

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.     

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