内镜辅助透明鞘内操作治疗基底节出血的疗效

目的 探讨内镜辅助透明鞘内操作治疗基底节出血的疗效。方法 以95例基底节出血患者为对象。随机分为观察组(内镜辅助透明鞘操作)与对照组(开颅手术)。比较两组手术治疗情况及预后。结果 观察组手术时间、术中出血量、术后第4天颅内压低于对照组,血肿清除率高于对照组(P<0.05)。观察组术后并发症发生率为8.33%(4/48),低于对照组(27.66%(13/47),P<0.05)。观察组术后预后良好率为64.58%(31/48)高于对照组(42.55%(20/47),P<0.05)。结论 内镜辅助透明鞘操作治疗基底节区脑出血的用时短、血肿清除率高、并发症少,对患者预后改善效果好。

多库条件下冗余数据一致性保证新措施──多库连动操作机制

本文提出了一种多库条件下冗余数据操作数据一致性保证新措施：通过属性一库（表）名链表映射机制实现多库透明连动操作．文中给出了查询、修改、追加等相应操作的数据结构和操作算法，指出了此法可用于DBMS的内部构造、DBMS的应用层操作和分布式数据库系统的构造。

中国人民银行透明度法制建设的回顾与展望

透明化已经成为世界范围内中央银行制度变革的基本趋势之一。随着我国中央银行制度的建立健全,中国人民银行的目标透明度、操作透明度、知识透明度稳步提高。2001年加入WTO和2003年SAR s危机积极推动我国的治道变革。目前,中国人民银行透明度与《货币和金融政策透明度良好行为准则:原则宣言》、《货币和金融政策透明度良好行为准则辅助文件》等国际标准还有较大差距,是今后我国中央银行法制建设的重点。

辅助生殖诱发单卵双胎的研究进展

辅助生殖技术为不孕不育患者带来了福音,单卵双胎成为严重的并发症。辅助生殖治疗中,女性高龄、促排卵药物的使用、囊胚及多个胚胎的植入、早期胚胎的机械操作和培养条件等均可导致单卵双胎率的明显升高。单卵双胎会导致双胎输血综合征等多种并发症,严重影响母婴健康。因此,深入研究单卵双胎的影响因素以期有效降低单卵双胎发生率是辅助生殖技术面临的新挑战和急需解决的问题。

如何面对公开、公正、公平

面向社会公开招标早已不再是什么新鲜事了,增加"透明度"毕竟是大势所趋。今年国家财政拨款支出方式的一项重大改革,就是政府采购实行公开招标。年初,在国家机关面向全国各地IT厂商公开招标的采购活动中,金长城电脑以96%分的评比高分,被国务院机关事务管理局一举选中。这项招标是今年国家政府机关正式贯彻政府采购的计划的重大举措之一,也标志着政府采购将走向公开、公正、公平的规范化市场运作。随着以"政府上网"工程等启动的政府采购力度日益走强,很有必要对公开、公正、公平的规范化市场运作作些议论。政府面向社会招标,本身就已体现了它的公开性原则。由于政府采购是批量购买、持续购买力强,招标采用透明操作,任何一个有实力的厂商都可站在投标席上,无论中标与否,至少增加了一条产品宣传的绝佳途径。对采购方政府而言,则可以精挑细选、货比三家,从而让自己得到最大的实惠。当然,有了公开性这个前提。

IVF/ICSI治疗中影响单卵双胎形成因素的meta分析

目的:研究IVF/ICSI治疗中影响单卵双胎发生的相关因素。方法:利用计算机检索Pubmed、Cochrane图书馆、Science direct、OVID、Web of science、万方、中国知网、维普、Sino Med、Open Grey等各数据库自建库至2015年4月13日所有公开或未公开发表的中文及英文文献,并手工检索纳入文献的参考文献。制定纳入标准,综合研究方法相似的研究,对不同影响因素的单卵双胎率进行meta分析。结果:IVF/ICSI治疗中行透明带操作与未行透明带操作的患者的单卵双胎率比较,差异无统计学意义(P>0.05)。IVF、ICSI、辅助孵化、囊胚移植、冻融胚胎移植治疗发生单卵双胎率分别为1.44%、1.51%、1.51%、2.17%和1.36%。结论:透明带操作并非导致单卵双胎发生的主要因素。

Time-delayed bilateral teleoperation using wave variable with prediction in three channel control architecture

This paper proposes a novel method for incorporating wave domain prediction in a three-channel(3CH)architecture,which is the optimal architecture from a transparency point of view,to overcome the poor transparency problem of using the wave variable method in a time-delay teleoperation system.A 3CH teleoperation control architecture is established by selecting parameters of the 4CH architecture sensibly for the system without force sensor in the master side.The communication channel is divided into a two-port model by combining force and velocity information reasonably to extend the wave variable method to a 3CH architecture.Then the I/O signal of the two-port model is transformed into wave variable.A predictor is added to the wave domain of the master side to further improve the transparency of the system,and a regulator is designed to ensure the passivity of the predictor.Experimental results show that the proposed method can guarantee stability and improve the transparency of the teleoperation system with time-delay.

电信级IP电话系统发售在即

3Com公司近日在华盛顿宣布,在经过了大规模的内部测试之后,公司准备将网关与信守(gatekeeper)和后台服务器一同作为Total Control IP电话系统的“初级工具”(starter kit)发售。新的信守和后台服务器组成了3Com独特的三层电信级架构中的第二和第三层,系统的第一层网关已经在去年发布。 Probe Research公司执行副总裁Hilary Mine说:“对于今天的服务提供商来说,真正的挑战并不是来自于语音的打包,而是借助于IP语音来构建和提供有效的服务。”

Modeling of Thermal Properties of Thermal Insulation Layered with Transparent,Opaque and Reflective Film

The popular and effective food preservation technology based on refrigeration is not sufficient for high-quality products while undergoing logistic operations(transport and retail). One of the basic factors that affects the quality of chilled and frozen food products during storage and transport is packaging. A protective function of packaging strongly depends on the material used and its composition. There are different kinds of thermal insulation used for food packaging. One of them, proposed by the authors is a multilayer structure of insulation made of rectangular air cells. The insulation can be prepared by means of plastic film featuring various properties. The paper presents how to improve an effective material designed for food freezing and transport aiming to enhance its thermal resistance through the application of different transparency, reflectivity and emissivity of the film. Mathematical model based on heat exchange equations, including conduction, convection and radiation throughout a number of parallel internal sheets of film of multilayer structures was proposed. Thermal properties depending on different transparency, reflectivity and emissivity of the film were analyzed. The model was verified experimentally showing its compatibility and obtaining a significant influence of thermal resistance according to the type of film used to make air structures, the number and thickness of its layers as well as the gaps between internal folds. For multi-layer insulation designed for the insulation of packed frozen food in the shape of a rectangle, it was recommended to apply film transmittance as small as possible for the internal parts of the structure.