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.     

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。     

海带叶状体不同部位的过氧化物酶酶型与基因表达的研究

采用垂直板式聚丙烯酰胺凝胶电泳技术对海带３个材料叶状体８个不同部位的过氧化物酶酶型与基因表达进行了分析．结果表明：海带叶状体的过氧化物酶受３个基因位点控制，由于某些基因不表达，因而各部位酶带表现出不同程度的差异，说明海带叶状体不同部位同工酶基因表达有其特异性．     

厦门海区真鲷同工酶的组织特异性的初步研究

应用聚丙烯酰胺凝胶电泳对厦门海区真鲷的肌肉、眼睛、心脏、胃、肝脏、肠、脾、肾、精巢、鳃等10种组织或器官进行了10种同工酶(LDH、MDH、IDH、GDH、ADH、EST、POX、ALP、ACP、α-AMY)的电泳研究，并对各种酶的同工酶位点表达及酶谱表型进行了初步分析．结果表明：LDH、MDH、IDH、GDH、ADH、EST和POX存在不同程度的组织或器官特异性，ALP酶具有活性，但图谱表现不明显，α-AMY、ACP未检测到酶活性．     

毛茛属两种植物的过氧化物酶同工酶和酯酶同工酶的研究

用聚丙烯酰胺凝胶电泳法对毛茛属的毛茛(Ranunculus ja ponicusscus Thunb．)和扬子毛茛(Ranun-culus siebodii Miq．)在不同生境中的叶、茎、果实进行了过氧化物酶同工酶及酯酶同工酶的分析，2个种的各组织器官均存在相似的酶谱，其中过氧化物酶的分离效果较酯酶的分离效果好，茎、果的酶带较叶的酶带多且分离效果好。结果表明，不同种之间、同一种类在不同生境中及同一种类不同组织器官中的同工酶谱有差异。     

中国鲎同工酶组织器官特异性表达

采用垂直聚丙烯酰胺凝胶电泳技术,分析了中国鲎6种组织器官(肝胰腺、心脏、肠、鳃、肌肉和黄色结缔组织)的乙醇脱氢酶(ADH)、山梨醇脱氢酶(SDH)、酯酶(EST)、过氧化氢酶(CAT)、天冬氨酸转化酶(AAT)、苹果酸脱氢酶(MDH)和苹果酸酶(ME)等7种同工酶的活性和分布,并对其酶谱的表型进行了分析.结果表明,中国鲎的同工酶系统存在不同程度的组织特异性.乙醇脱氢酶在鳃和黄色结缔组织中不表达;山梨醇脱氢酶在鳃中不表达;酯酶、过氧化氢酶和苹果酸脱氢酶在6种组织器官中均有表达,但表达活性存在差异;而天冬氨酸转化酶Aat-1位点在鳃中不表达.     

冬青属苦丁茶不同种质材料之过氧化物酶同工酶和酯酶同工酶研究初报

根据起源地域、类群、物种以及形态特征的差异，从海南大学苦丁茶研究所种质资源圃中选取15份冬青属苦丁茶种质材料进行过氧化物酶同工酶酶谱分析，并从冬青属5个物种中各取1份种质材料进行醇酶同工酶酶谱分析。实验结果表明：1．冬青属苦丁茶其不同物种之种质材料的过氧化物同工酶酶谱和醇酶酶谱均显示出明显的物种间差异；2．过氧化物酶同工酶在冬青属的5个供试物种的所有不同种质材料中均存在一条共同的谱带(PA3)，该谱带可视为冬青属苦丁茶的特征谱带；3．不同地域来源的苦丁茶冬青种质材料其过氧化物酶酶谱显示出差异，而同一地域内(或同一类群内)苦丁茶冬青的不同种质材料，其过氧化物酶同工酶酶谱则基本相同；4．醇酶酶谱特征显示，冬青属内不同物种的苦丁茶其酯酶同工酶多态性显著。以上研究结果初步显示，过氧化物酶同工酶和醇酶同工酶之酶谱分析结果可以作为判断冬青属苦丁茶种质材料的起源地域、遗传差异、亲缘关系以及种级水平的分类鉴定的参考依据之一。     

密点麻蜥冬眠期和繁殖期几种器官组织中乳酸脱氢酶(LDH)同工酶的比较研究

采用聚丙烯酰胺凝胶电泳法,对冬眠期和繁殖期密点麻蜥(Tremies multidcelate)6种器官组织中乳酸脱氢酶(LDH)同工酶酶带和酶活性进行了测定和分析研究.结果表明:不同组织的酶带明显不同,且有多画带现象;6种器官组织中LDH同工酶的相对活性表现出明显的季节差异.     

黄河鲤和德国镜鲤及其杂种F1同工酶的比较研究

本研究用垂直板聚丙烯酰胺凝胶电泳技术，以亲本黄河鲤（ＣｙｐｒｉｎｕｓｃａｒｐｉｏＬ．（ＹｅｌｌｏｗＲｉｖｅｒｃａｒｐ））和德国镜鲤（ＳｅａｔｔｅｒｅｄＣｙｐｒｉｎｕｓＣａｒｐｉｏ．Ｌ．ｍｉｒｒｏｒ）及其杂种Ｆ＿１的肝脏、脾脏、心、肾脏、脑和肌肉为材料，进行了乳酸脱氢酶同工酶（ＬＤＨ），苹果酸脱氢酶同工酶（ＭＤＨ）和酯酶同工酶（ＥＳＴ）电泳图谱的比较分析，结果表明，同种鱼不同组织的同工酶谱有明显的组织特异性，亲本及Ｆ＿１的同种不同组织同工酶谱也有差异，亲本各组织的大多数同工酶在Ｆ＿１代得到表观，杂种Ｆ＿１的同工酶谱的表现又可分为三类：１）与双亲完全互补型；２）部分互补和少数亲本酶带消失型；３）产生双亲均无得以出现的酶带或杂种酶带型．本文还讨论了黄河鲤、德国镜鲤及其Ｆ＿１的同工酶的遗传基础和亚基组成．     

两种类型薏苡及F_1的同工酶分析

通过对两种类型薏苡及Ｆ１在拔节期和抽穗期的同工酶分析看出，川谷和薏苡的酶只有一种同工酶；过氧化物酶同工酶酶带较丰富，在抽穗期多于拔节期；在叶片组织中比节间和雌穗中多，并且在双亲及Ｆ１间差异明显。在Ｆ１植株中未出现杂种酶带，双亲的一些主要酶带在Ｆ１中受抑制未表现出来。利用过氧化物酶可进行薏苡属的亲缘关系，系统演化及遗传特性差异的研究。     

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.     

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.     

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.     

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.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.