湖北侧褶蛙与黑斑侧褶蛙同工酶的比较研究

采用垂直板聚丙烯、酰胺凝胶电泳方法，对湖北侧褶蛙(Pelophylax hubeiensisi)和黑斑侧褶蛙(Pelophylax mgromaculata)的消化道、心脏、肌肉、脾脏、肾脏、脑、肝脏、生殖腺、晶体和肺等10种组织中的酯酶(EST)、苹果酸脱氢酶(MDH)、乙醇脱氢酶(ADH)、乳酸脱氢酶(LDH)、过氧化物酶(POX)等5种同工酶进行了比较研究。分析并讨论了5种同工酶在不同组织中的分布及遗传基础。结果显示，两种蛙的POX、MDH、ADH同工酶表现明显的遗传相似性；EST、LDH同工酶存在较大的种间差异。     

鸭绿江流域中国境内松江鲈鱼(Trachidermus fasciatus)天然种群的同工酶分析

采用垂直板状聚丙烯酰胺凝胶电泳，对鸭绿江流域松江鲈鱼天然种群的8种同工酶（EST，MDH，LDH，ME，α-AMY，GDH，ADH，G6PD）的20个基因座位进行分析，结果表明，该野生种群的多态座位比例（P）为10%，平均杂合度（H）为0.030，均低于与其相似生活习性的其他鱼类的平均值，以此讨论了松江鲈鱼的种质资源状况及生态环境的关系。     

细角螺几种组织的同工酶分析

采用聚丙烯酰胺垂直板梯度凝胶电泳技术,对细角螺7种组织(外套膜、肌肉、肝脏、心脏、生殖腺和缠卵腺)的7种同工酶(EST,SOD,ME,MDH,LDH,ADH,GDH)进行了分析,结果表明：所测组织中未检出ADH和 GDH,LDH除了在肝脏中呈现较浓的条带外,在其他组织均呈现微弱条带,无组织差异性;ME,EST,SOD,MDH在组织间具有显著的差异.     

沙塘鳢不同组织同工酶生化表现型及遗传基础

采用垂直板聚丙烯酰胺凝胶电泳方法，对沙塘鳢（Odontobutis abscura）的消化道、心脏、肌肉、脾脏、肾脏、脑、肝脏、生殖腺和晶体9种组织的4种同工酶(EST、LDH、ADH、MDH)进行了研究，讨论了这几种同工酶在沙塘鳢不同组织中的分布以及遗传基础。EST有5个基因位点，单体酶；LDH只有1个基因位点，为四聚体酶；MDH为由3个基因位点控制的二聚体酶；ADH亦为二聚体酶，但仅在肝脏中得到表达。结果表明，同工酶的表达具有组织特异性。     

不同年龄池蝶蚌(贝)与三角帆蚌同工酶的比较

对池蝶蚌(贝)和三角帆蚌之间的4个年龄段和7种组织(心、肝、肾、鳃、闭壳肌、外套膜、性腺)中的10种同工酶(ALP、LDH、ADH、ACP、CAT、MDH、G-6-PDH、POD、EST、SOD)进行分析。结果表明,两种贝类的同工酶具有明显的年龄、组织特异性;池蝶蚌的同工酶系统较三角帆蚌的复杂,在一定程度上揭示了所检测的池蝶蚌种群的生活力和代谢能力强于三角帆蚌种群。     

花[鱼骨]鱼6种同工酶的组织特异性表达分析

采用不连续聚丙烯酰胺垂直板电泳技术，分析了花[鱼骨]鱼鳃、眼睛、肌肉3种组织中6种同工酶差异表达，并对部分同工酶位点表达及酶谱表型进行了初步分析．实验结果显示：SDH在3种组织中均未见表达；ADH仅在肌肉组织和眼睛中出现较弱的1条酶带；其它4种酶在3种组织均有较好地表达，其中EST、SOD在组织间表达不存在明显差异；而LDH、MDH同工酶在酶带数及酶活性方面有明显的组织特异性，这可能是受不同基因位点或同一基因位点不同等位基因控制的结果．在6种同工酶中共检出7个基因座位．     

江苏水域7种重要养殖鱼类的同工酶分析

采用垂直板不连续聚丙烯酰胺凝胶电泳,研究了江苏水域7种重要养殖鱼类肌肉的数种同工酶(LDH、EST、MDH、ME、ADH、GDH和POX),对这些酶在各鱼种表达的位点与酶带分别作了分析.根据所统计的位点和酶带数目计算出6种鲤科鱼间遗传距离和相似性系数.聚类分析显示,青鱼、草鱼与鲢、鳙先分别汇聚,然后再汇聚成一个单元,团头鲂与翘嘴红鲌汇聚成一个单元,最后这两个单元汇聚在一起,这与分类学结论一致.本文还讨论了各种鱼同工酶酶谱差异、江苏水域重要养殖鱼类资源状况以及鳜和翘嘴红鲌不同种群间酶谱异同.     

山东日照和福建厦门沿海花鲈同工酶的遗传变异分析

利用聚丙烯酰胺凝胶电泳技术，对分别来自山东日照和福建厦门两自然群体的沿海花鲈，分析了酶表达活性强的肝脏、肌肉两组织中LDH、MDH、ME、α—GPDH、ADH、SDH、SOD、G—6PDH、EST、GDH等10种同工酶，检出19个基因座位。数据处理结果：花鲈两群体的遗传相似度和遗传距离分别为0．9902和0．0098，平均杂合度分别为0．1112及0．0939。Me—1、G—6—pdh—2、Est—1、Est—5的4个基因座位具有多态性，多态座位比例均为21．1％，座位平均有效基因数均为1．2630由此可表明日照花鲈群体的遗传多样性水平比厦门花鲈群体高。     

赤点石斑鱼4种同工酶的组织分布及基因位点分析

运用聚丙烯酰胺垂直梯度凝胶电泳法对赤点石斑鱼7组织(肌肉、肝脏、肾脏、心肌、脑、脾脏、性腺)的4种同工酶(EST、LDH、MDH、ME)进行了初步研究,并对4种酶的同工酶位点及酶谱表型进行了分析.结果表明:赤点石斑鱼的4种同工酶系统具有明显的组织特异性;EST由4个基因位点编码;LDH酶带多于典型的5条酶带;MDH具有线粒体型(m-MDH)和上清液型(s-MDH)两种类型;7种组织只检测到一种类型的ME.     

花(鱼骨)鱼6种同工酶的组织特异性表达分析

采用不连续聚丙烯酰胺垂直板电泳技术,分析了花鱼鳃、眼睛、肌肉3种组织中6种同工酶差异表达,并对部分同工酶位点表达及酶谱表型进行了初步分析.实验结果显示:SDH在3种组织中均未见表达;ADH仅在肌肉组织和眼睛中出现较弱的1条酶带;其它4种酶在3种组织均有较好地表达,其中EST、SOD在组织间表达不存在明显差异;而LDH、MDH同工酶在酶带数及酶活性方面有明显的组织特异性,这可能是受不同基因位点或同一基因位点不同等位基因控制的结果.在6种同工酶中共检出7个基因座位.     

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).     

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.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.