康乐园

康乐园烹调与食物营养各种食物在烹调过程中．其所含营养素的质和量，都会发生一定程度的变化，其变化程度，与食物本身的理化特性及烹调方法有密切关系。一般情况下，蛋白质、糖和脂肪、无机盐在烹调过程中有部分营养素浸放汤汁中．如食用汤汁，则营养素基本上无损失，但...     

γ-氨基丁酸的生理学功能及研究现状

γ-氨基丁酸（GABA）是一种重要的神经抑制性递质，广泛存在于动植物中，它是谷氨酸经由谷氨酸脱羧酶作用生成．本文综述了GABA的生物学功能以及近年来的研究现状．     

人神经营养素-4基因的原核表达与纯化

以人外周血淋巴细胞基因组DNA为模板,用PCR方法扩增出神经营养素-4基因(NT-4)成熟蛋白的DNA序列,并将其克隆到表达载体pET32a中,在大肠杆菌BL21(DE3)中经异丙基-β-D-半乳糖苷(Isopropyl-beta-D-thiogalactopyranoside,IPTG)诱导后高效特异表达了分子量约为35kD的蛋白,诱导表达的蛋白主要存在于包涵体中,经Ni^2 -NTA树脂亲和层析纯化,得到了纯度达94％的NT-4成熟蛋白的融合蛋白．为进一步研究NT-4的生物学活性及在临床治疗中的作用打下了基础．     

短波

抗过敏营养素1．维生素A(β-胡萝卜素)功效:有抗氧化功能,可增强免疫能力。增进对呼吸性感染疾病的抵抗力。来源:动物肝脏、鳗鱼、鱼肝油、黄绿蔬菜、红白萝卜、南瓜、杏仁。2．维生素B群功效:制造抗体、安定神经,增强免疫力。缺乏会引起免疫系统退化,如胸腺萎缩,淋巴球减少。     

基于遗传算法的变结构神经Petri网模型

将Petri网理论引入到神经网络模型的研究中，依据生物学神经系统的可塑性，通过适当扩展规范Petri网，建立了人工神经元状态转化的Petri网模型．在此基础上给出了利用遗传算法设计变结构神经Petri网的方法，该方法不仅可以得到满足要求的网络参数，而且能对网络的拓扑结构进行优化．仿真结果验证了该方法的可行性．     

长期素食营养对老年人健康的危害及防治

老年长期素食，导致一些营养素缺乏和营养不良对身体健康的危害，是引发各种疾病诱因之一．阐述了膳食结构、饮食均衡、对症分析及防治的重要性．     

DSC控释花肥的研制及其对一串红生长的影响

以无水硫酸钙为栽体，将不同浓度的二苯基脲磺酸钙(DSC)与适宜花卉生长的全营养素混合，制成固体缓释花肥，并用石蜡进行包膜处理，以一定的剂量施以一串红，观察、比较其对花卉生长发育的影响．结果表明，5g全营养素与5mg～10mg的DSC配合使用对花卉生长的促进作用最好，能明显促进叶绿素含量的增加，并且这种促进作用是持久的、长效的．     

一种亟待开发的功能型营养素——辅酶Q10

本文介绍了辅酶Q10的定义、特点、生物学活性、功能等及其在我国的应用情况.提出了辅酶Q10作为功能型营养素,开发成各种保健食品的必要性、紧迫性和重要意义.     

文昌鱼eIF5A基因的克隆和进化学分析

对文昌鱼神经胚cDNA文库进行测序和系统分析，首次从青岛文昌鱼(Brachiostoma belcheri tsingtauense)中成功得到1个eIFSA基因的cDNA序列，分析其推导的氨基酸序列揭示该基因产物具有eIF-5A家族蛋白质共有的保守区．对其二级结构进行预测，序列同源性分析表明eIF-5A家族基因在所有的真核生物中都高度保守．进化生物学的分析显示文昌鱼的eIF5A基因与脊椎动物的同源性较高，     

进化论与生物学的关系刍议

对进化论与生物学的关系进行了浅析．达尔文进化论的建立使生物学各分支学科成为彼此相互关联系、相互印证的统一体系；推进生物学发生了革命性的变革，同时，生物学的各个分支，为生物进化过程提供了科学证据．     

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.     

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.     

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.     

A computer generator for randomly layered structures

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

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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