水溶液中Fe^3＋与胆固醇的作用

采用ＩＣＰ发射光谱法测定了在不同的条件下胆固醇在溶液中对Ｆｅ３＋的吸附情况，得出胆固醇与Ｆｅ３＋相互作用的关系，并就Ｆｅ３＋与高胆固醇血症的关系进行了讨论，得出了一些有意义的结果．     

水溶液中Cu^2＋与胆固醇的相互作用

用双乙醛草酰二腙分光光度法测定了在不同条件下，胆固醇在水溶液中对Ｃｕ＾２＋的吸附情况，得出胆固醇与Ｃｕ＾２＋相互作用属物理吸附的关系，并就ＣＵ＾２＋与高胆固醇血症的关系进行了讨论。     

高脂蛋白血症和动脉粥样硬化:饮食治疗

如见于高胆固醇血症和/或高甘油三酯血症的血浆低密度脂蛋白和/或极低密度脂蛋白水平的提高主要是由于饱和脂、高胆固醇、高热量饮食和过量饮酒所引起。饮食治疗是构成成功地处理高脂血症的基本步骤。即使原发型高脂蛋白血症病人,适当设计的饮食也可以把这个问题减轻到可变程度。当血清胆固醇成人高于200mg/dl,小孩190～200mg/dl,和有甘油三脂值持续大于200m     

高脂血症与膳食关系36例分析探讨

血浆脂质中一种或多种成份的浓度超过正常高限时称高脂血症，因血浆脂质为脂溶性，必须与蛋白质结合为水溶性复合物而运转全身，政高脂血症常表现为高脂蛋白血症．作者从1992年5月至1997年5月，研究分析36例高脂血症患者，发现本病和膳食密切有关，现报道如下。1．临床资料本组36例，男性26例，女性10例，年龄范围30－55岁，平均42岁．血脂测定：胆固醇均＞220mg／100Inl，甘油三酯＞160mg／100thl。分别称为高胆固醇血症和高甘油三酯血症，统称树油症．有遗传因素的6例，其父母也有高脂血症．吸烟者：男性22例，女性2例；男性病人均嗜酒。…     

我院中老年教职工血脂调查报告

本文对595名40岁以上知识分子的血清胆固醇和甘油三酯进行了调查统计,其中31人为高胆固醇血症,占5.2％,104人为高甘油三酯血症,占17.5％,30人为混合型高脂血症,占5％。高脂血症的发病率有随年龄增高而增高趋势,且女性高于男性。     

辛伐他汀治疗高胆固醇血症小鼠过程中肝脏的差异表达基因

为了研究辛伐他汀治疗高胆固醇血症过程中肝脏的差异表达基因,我们利用抑制消减杂交(SSH)技术构建了高胆固醇血症小鼠及高胆固醇血症经辛伐他汀治疗小鼠的肝脏双向差异表达基因文库,并采用改进的negative subtraction chain(NSC)方法去除正向文库的绝大部分假阳性背景,使得SSH文库的容量缩小了近50倍,对筛选到14个差异表达克隆再经过斑点杂交验证,最终获得8个阳性克隆.经DNA序列测定和基因功能分析,结果表明,辛伐他汀治疗高胆固醇血症过程中,小鼠肝脏差异表达的已知功能基因主要有以下几类:脂类代谢基因、炎性免疫反应相关基因、细胞粘附基因、逆境胁迫基因.改进的NSC和SSH技术的结合使用,大大地增加了差异表达基因文库的阳性率,提高了获得差异表达基因的效率.     

525例伴血脂异常IgA肾病患者的临床病理分析

目的:探究不同血脂类型的IgA肾病患者的临床病理表现的差异.方法:采用横断面研究设计,纳入525例IgA肾病患者的性别、基线年龄、基线病程、基线血压、高血压病史、血肌酐、eGFR、尿酸、24 h小时尿蛋白定量、尿红细胞计数、血清白蛋白、血脂、Katafuchi半定量病理积分系统(包括小球积分、小管-间质积分、血管积分)等临床病理资料,根据血脂结果将患者分为血脂正常组、高胆固醇血症组、高甘油三酯血症组、低高密度脂蛋白组,分别比较各组临床病理指标的差异.结果:高甘油三酯血症组的间质纤维化积分、小管萎缩积分、小管间质积分、血管壁增厚积分、血管积分、katafuchi总积分高于血脂正常组;其小球增殖积分低于高胆固醇血症组;而血管壁增厚积分高于高胆固醇血症组.结论:不同血脂异常类型的IgA肾病患者的病理损害程度并不完全相同,其中高甘油三酯血症可能对肾脏病理改变影响较大.     

我校45岁以上脑力劳动者血脂水平调查

校医院对我校45岁以上508名脑力劳动者进行了血脂水平的调查。检出胆固醇与β-脂蛋白正常者318人,异常者190人。测定出受检人群的血脂正常值水平:血清胆固醇正常值男性4.55±0.0884mmol/L,女性4.65±0.130mol/L;血清β-脂蛋白正常值男性5.00±0.125g/L,女性5.08±0.215g/L。临床检测指标规定40岁以上血清胆固醇高于6.5mmol/L 者为高胆固醇血症。我校受检的508人中高胆固醇血症者     

高脂蛋白血症

<正> 按世界卫生组织一九七○年所下的定义,高脂旦白血症系指一种或几种脂旦白在血浆中浓度增高如高乳糜微粒血症、高极低密度脂旦白血症、高中密度脂旦白血症及高低密度脂旦白血症,同时它伴有血清脂质浓度的增加如高胆固醇血症及高甘油三酯血症。至于高脂血症则成为一般术语,泛指血浆极低密度脂旦白或乳糜微粒浓度增高,致使血浆甘油三酯浓度增高血浆呈混浊而言。高脂旦白血症分为五型,其中Ⅱ型分为二个亚型。     

家族性载脂蛋白B—100缺陷的研究（综述）

家族性载脂蛋白Ｂ－１００缺陷的研究（综述）俞锐敏朱致惠（暨南大学医学院第一附属医院内科，５１０６３０，广州）关键词：载脂蛋白Ｂ－１００；缺陷；基因突变；高胆固醇血症中图分类号：Ｒ５８９－１现已证实低密度脂蛋白胆固醇（ＬＤＬ－Ｃ）在体内的清除通过以下两...     

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.     

A computer generator for randomly layered structures

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

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。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

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

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

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.     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.