槟榔花口服液的急性及长期毒性研究

槟榔花口服液急性毒性实验，４、鼠灌胃给药的ＬＤ＿（５０）为（１８．８７±４．３）ｇ／ｋｇ体重，皮下给药的ＬＤ＿（５０）为（９．７６±１．７）ｇ／ｋｇ体重，大鼠长期毒性实验分别灌胃给药２．６６ｇ／ｋｇ，５．３３ｇ／ｋｇ和１０．６５ｇ／ｋｇ体重，对照组给予等容积的蒸馏水，连续２周，各组无动物死亡，各项血指标检查正常。病理报告高剂量组有３只动物少量肝细胞可见脂肪空泡，１只大鼠肺脏轻度灶性肺炎，中低剂量组无明显改变。高剂量组存活动物于停药７天后，病理检查均正常。     

双核镉(Ⅱ)原子多氮穴合物的合成与晶体结构研究

报道了以三（３－胺基丙基）胺（ｔｒｐｎ）在Ｃｄ（ＣｌＯ４）２·６Ｈ２Ｏ存在下，分别与２，６－二甲醛基－４－甲苯酚（ｄｍｐ）及２，６－二甲醛基－４－溴苯酚（ｄｂｐ）的钠盐发生［２＋２］和［２＋３］的希夫碱缩合反应，合成了两个新的双核镉（Ⅱ）多氮穴合物［Ｃｄ２Ｌ１］ＣｌＯ４和［Ｃｄ２Ｌ２（Ｈ２Ｏ）］·２ＣｌＯ４·０．５ＣＨ３ＯＨ．晶体结构表明：穴合物中两个镉（Ⅱ）原子均处于相似的环境，每个镉（Ⅱ）原子的配位数均为７（Ｎ４Ｏ３），处于变形十面体的中心，穴合物［Ｃｄ２Ｌ１］＋中的两个镉（Ⅱ）通过三个酚氧原子为桥；穴合物［Ｃｄ２Ｌ２（Ｈ２Ｏ）］２＋中的两个镉（Ⅱ）则是通过二个酚氧原子和外加一个参与配位的水分子为桥连接起来．并进一步比较了［Ｃｄ２Ｌ１］，［Ｃｄ２Ｌ２（Ｈ２Ｏ）］２＋及另两个相似的镉（Ⅱ）双核穴合物［Ｃｄ２Ｌ３］＋，［Ｃｄ２Ｌ４］＋的稳定性大小．     

杜仲细胞的悬浮培养

杜仲外植体在ＭＳ＋２，４－Ｄ２．０ｍｇ／Ｌ的培养基上可诱导出生长速度快、离散性好、适合于悬浮培养的愈伤组织；愈伤组织在ＭＳ＋２，４－Ｄ２．０ｍｇ／Ｌ＋ＣＨ３００ｍｇ／Ｌ的液体培养基上进行振荡培养，经３～４次继代，即可建立起悬浮细胞系；悬浮细胞的形状为长形、椭圆形、圆形和“月牙”形。     

CaCl2和Ca（NO3）2对降低玉米幼苗质膜透性的作用

以玉米为实验材料，分别用１５０ｍｍｏｌ／Ｌ，１５０ｍｍｏｌ／Ｌ，ＮａＣｌ＋１５ｍｍｏｌ／Ｌ ＣａＣｌ２及１５０ｍｍｏｌ／ＬＮａＣｌ＝１５ｍｍｏｌ／ＬＣａ（ＮＯ３）２的１／２浓度Ｈｏａｇｌａｎｄ溶液连续处理５天后，分别测定ＭＤＡ含量，质膜透性，植物鲜重，植物干重及植物体内Ｎａ＾＋含量。     

保鲜剂对一枝黄切花保鲜效果的研究

研究了由蔗糖、８－ＨＱ、柠檬酸、ＮａＣｌ、ＫＭｎＯ４等物质组成的不同保鲜剂地一枝黄切花的保鲜效果及瓶插寿命的影响，通过对一枝黄切花在瓶插期间的水分状况和生理代谢及保鲜液化的研究，结果表明：切花瓶插寿命的长短同切花鲜重的增加程度和水分平衡的时间长短有显著相关性，切花在瓶插期间蛋白质分解过快或体内糖分在量积累都不利于切花的长期保鲜；２％蔗糖＋５００ｍｇ／Ｌ柠檬酸＋５０ｍｇ／Ｌ ＡｇＮＯ３＋５０ｍｇ／Ｌ Ａｌ２Ｏ３的配方能改善花枝的吸水状况，延长切花水平平衡的时间，切花的瓶插寿命可延长至２８天。     

甘蓝型油菜萝卜质不育系恢复材料Ad—6（F4）测交二代恢？…

油菜萝卜胞质不育系恢复材料Ａｄ－６（Ｆ４）测交二代恢复株ＴＣＦ２,在ＭＳ附加５ｍｇ／Ｌ ６－ＢＡ＋０．５ｍｇ／Ｌ ＮＡＡ,３ｍｇ／Ｌ,６－ＢＡ＋０．２ｍｇ／Ｌ ＮＡＡ,３ｍｇ／Ｌ ６－ＢＡ｜０．３ｍｇ／Ｌ ＮＡＡ＋６００ｍｇ／Ｌ水解５ｍｇ／Ｌ－６－ＢＡ＋０．３ｍｇ／Ｌ ＮＡＡ＋５ｍｇ／Ｌ ＡｇＮＯ３对ＴＣＦ２诱导丛生芽有较好的效果。     

十四员四氮杂大环铜（Ⅱ）配合物参与的新型振荡化学反应

本文报道了一种新型振荡化学反应体系：ＮａＢｒＯ~３－ＣＨ~２（ＣＯＯＨ）~２－Ｈ~３ＰＯ~４ＣＵＬ（２＋）（Ｌ为５，７，７，１２，１４，１４一六甲基一１，４，８，１１一四氮杂环十四一４，１１一二烯）．研究了体系中各物种的初始浓度、温度、还原性物质（维生素Ｃ和草酸）、自由基抑制剂（丙烯腈、丙烯酰胺、Ｈ~２Ｏ~２）、Ａｇ＋、Ｈｇ（２＋）、Ｌ一半胱胺酸等因素对振荡的影响。     

甘蓝型油菜萝卜质不育系恢复材料Ad-6(F4)测交二代恢复株TCF2的快繁及生根

油菜萝卜胞质不育系恢复材料Ａｄ－６（Ｆ４）测交二代恢复株ＴＣＦ２,在ＭＳ附加５ｍ ｇ／Ｌ６－ＢＡ＋ ０．５ｍ ｇ／Ｌ ＮＡＡ,３ｍ ｇ／Ｌ ６－ＢＡ＋ ０．２ｍ ｇ／Ｌ ＮＡＡ,３ｍ ｇ／Ｌ ６－ＢＡ＋ ０．３ｍ ｇ／Ｌ ＮＡＡ＋６００ｍ ｇ／Ｌ水解乳蛋白以及５ｍ ｇ／Ｌ６－ＢＡ＋ ０．３ｍ ｇ／ＬＮＡＡ＋ ５ｍ ｇ／ＬＡｇＮＯ３ 的不同培养基上诱导丛生芽,结果表明５ｍ ｇ／Ｌ６－ＢＡ＋ ０．３ｍ ｇ／ＬＮＡＡ＋ ５ｍ ｇ／ＬＡｇＮＯ３ 对ＴＣＦ２ 诱导丛生芽有较好的效果．小芽生根培养基为１／２ＭＳ效果最好．     

高丽参口服液的急性及长期毒性研究

高丽参口服液急性毒性实验，小鼠经灌胃给药最大耐受量为３０ｇ／ｋｇ体重，腹腔注射给药的ＬＤ５０为（１２９±１．５）ｇ／ｋｇ体重，大鼠长期毒性实验分别灌胃给药４．０ｇ／ｋｇ、２．０ｇ／ｋｇ和１．０ｇ／ｋｇ体重，对照组给予等容积蒸馏水，连续４周，各组无动物死亡，各项指标检查正常，病理报告高剂量组有３只动物部分肝细胞胞浆疏松化和气球样变性，中、低剂量组无明显改变，高剂量组存活动物于停药１０ｄ后，病理检查正常．     

离子敏感微电极的制作及参数测试

本文制作了Ｋ＋，Ｎａ＋液态膜离子敏感微电极（Ｋ＋，Ｎａ＋—ＩＳＭＥ），并稳定了其制作条件，经测试，Ｋ＋—ＩＳＭＥ线性范围为１—１０－４ｍｏｌ／Ｌ，检测下限为３．０×１０－６ｍｏｌ／Ｌ。对Ｎａ＋选择系数为２．６８×１０－４。电位飘移为±０．１ｍＶ／ｈ。Ｎａ＋—ＩＳＭＥ线性范围为１—２．０×１０－ｍｏｌ／Ｌ，检测下限为５．０×１．０－４ｍｏｌ／Ｌ。对Ｋ＋的选择系数为１．８５×１０－２，对Ｃａ２＋的选择系数为１．４６。上述参数均满足生理实验要求，离子敏感微电极技术可做为生理学研究的重要手段。     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the