老年性白内障膨胀期继发青光眼的手术治疗

目的探讨老年性白内障膨胀期继发青光眼进行手术治疗的时机、手术方式、手术并发症。方法对18例20只眼,单纯白内障手术3只眼,白内障手术联合抗青光眼手术17只眼（其中小梁切除术10只眼,周边虹膜切除术7只眼）。一期植人人工晶体17只眼。结果术后16只眼眼压正常,占80％,术后视力均较术前明显提高,≥0．3者占75％。结论老年性白内障膨胀期继发青光眼,根据发作时房角是否开放选择恰当的手术方式提高视力及控制眼压。持续高眼压引起的视神经萎缩是术后视力低下的主要原因,强调膨胀期前手术是预防老年性白内障膨胀期继发性青光眼的主要措施。     

小梁切除联合巩膜条嵌置术治疗新生血管性青光眼疗效观察

目的:探讨小梁切除联合巩膜条嵌置术治疗新生血管性青光眼的疗效.方法:20例26眼,按青光眼小梁切除术步骤作约6 mm×5 mm大小1/3厚板层巩膜瓣,于巩膜瓣下切除4 mm×2 mm大小小梁组织,其巩膜条鼻侧或颞侧一端成游离状,用虹膜恢复将巩膜条反转送往前房,视病情决定是否作虹膜根切,如有严重虹膜后粘连作虹膜根切,根切前先电烙切除部分的虹膜以免发生出血.间断缝合巩膜瓣2针,缝合球结膜瓣2针,结膜下注射庆大霉素2万u+地塞米松2 mg.结果:随访18例22眼,视力增加13眼;眼压:术前平均(7.73±0.35)kPa,术后平均(2.53±0.47)kPa,明显下降.疼痛:术后疼痛全部消失.治疗后新生管情况:16眼虹膜无变化,6眼略增加,但无眼压增高及疼痛.结论:小梁切除联合巩膜条嵌置术治疗新生血管性青光眼疗效较好,视力增加,疼痛全部消失,无并发症.     

渠道式小梁切除术治疗新生血管性青光眼的疗效观察

目的:探讨渠道式小梁切除术治疗新生血管性青光眼的疗效.方法:新生血管性青光眼12例(12)眼,其中视网膜中央静脉阻塞8例,糖尿病视网膜病变2例,急性闭角型青光眼绝对期2例,术后随访虹膜新生血管、眼压、滤过泡、视力变化.结果:术后部分虹膜新生血管消退,术后眼压平均值(17.30±2.75)mmHg,功能性滤过泡10例,视力未见提高.结论:渠道式小梁切除术治疗新生血管性青光眼有效,安全.     

复合式小梁切除术治疗难治性青光眼的临床疗效分析

目的探讨复合式小梁切除术治疗难治性青光眼的临床效果。方法对36例40只眼的难治性青光眼施行复合式小梁除术,术后观察视力、眼压、前房深度及滤过泡形态,随访6～24月。结果11只眼术后视力提高,术后早期（1～5d）Ⅱ度浅前房发生率7.5%,3～5d后前房逐渐恢复。出院时40只眼眼压为6～14mmHg,平均（9±2）mmHg;术后6月,40只眼平均眼压（13±2）mmHg,36只眼压处于12～17mmHg之间。随访1年,功能性滤过泡占95%（38/40）。结论复合式小梁切除术能有效提高难治性青光眼的手术成功率。     

可调节巩膜瓣缝线在小梁切除术中的临床应用

目的探讨可调节巩膜瓣缝线在小梁切除术中的临床应用效果。方法将73例(92只眼)青光眼患者随机分成A、B两组,每组均46只眼。A组术中缝可调节巩膜瓣缝线,B组术中不缝可调节巩膜瓣缝线,观察术后视力、滤过泡、角膜、前房、晶体、眼底、眼压等。结果A组浅前房发生率为6.52%,随访6～24个月,眼压控制率为95.65%。B组浅前房发生率为32.61%(2χ=9.94,P=0.002),随访6～24个月,眼压控制率为71.74%(2χ=9.95,P=0.002)。结论可调节巩膜瓣缝线的小梁切除术能有效降低术后浅前房的发生和提高手术成功率。     

提高小梁切除术疗效措施的应用

目的：探讨青光眼小梁切除术中可拆式缝线及术后滤泡按摩应用的临床效果。方法：原发性青光眼72例(81只眼)行小梁切除术，采用可拆式缝线及术后滤泡按摩的措施。结论：术后按摩减少了结膜下疲痕形成及引流道阻塞；可拆除巩膜缝线对术后前房形成，调整眼压具有灵活保障的作用。此二项措施配合使房水流通、眼压稳定，在一定程度上克服了小梁切除术的缺点。     

超声乳化白内障人工晶状体植入术后影响视力因素分析

目的:分析超声乳化白内障摘除人工晶状体植入后影响视力因素。方法:对405例452眼白内障超声乳化摘除人工晶状体植入术后影响视力因素进行分析。结果:术后一月 ,<0.5者130眼(28.8%),0.5～0.9者184眼(40.7 %),≥1.0者138眼(30.5%)。影响视力的主要因素为 :术后并发症如角膜水肿及失代偿、后囊混浊、葡萄膜炎、人工晶状体偏位、术后屈光不正及术前、术后合并眼病。结论:在超声乳化白内障摘除术中 ,减少术中术后并发症 ,减少术后屈光不正可提高术后视力。     

超声乳化白内障摘除术治疗急性闭角型青光眼

为了探讨单纯超声乳化白内障摘除术治疗急性闭角型青光眼的疗效,对住院178眼能药物控制眼压在21mmHg以下的急性闭角型青光眼患者行单纯超声乳化白内障摘除术.结果表明:术后3个月内平均眼压为12mmHg,比术前平均眼压48mmHg有明显下降;术后视力:<0.1者16眼占9%,0.1～0.2者18眼占10%,0.3～0.4者59眼占33%,0.5以上者85眼占48%,比术前视力有明显的提高.研究显示:单纯超声乳化白内障摘除术可治愈房角关闭早期青光眼或可缓解的急性闭角型青光眼,且有比较好的疗效.     

复合式小梁切除术的临床观察

目的 :观察复合式小梁切除术的手术成功率及术后并发症。方法 :对23例(27眼)小梁切除术中应用0 4mg/ml的丝裂霉素C ,联合前房穿刺 ,外置巩膜瓣可拆除缝合的方法进行观察。结果 :23例中功能滤过泡达100%,术后6mo眼压稳定 ,术后仅1例发生Ⅱ级浅前房。结论 :复合式小梁切除术不仅提高了抗青光眼手术的效果 ,而且大大减少了并发症的发生     

全视网膜光凝联合滤过性手术治疗新生血管性青光眼的临床观察

本文对13例已发生房角粘连的新生血管性青光眼行全视网膜激光光凝联合深层巩膜咬切术治疗,并进行随访观察,结果表明:虹膜新生血管消失、眼压降低、疼痛缓解;视力维持术前水平12例,1例术后视力略有提高,是目前治疗较(?)期新生血管性青光眼的有效方法。     

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.     

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

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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