目的分析间歇导尿对宫颈癌根治术后患者尿液引流的应用效果。方法在the Cochrane Central Register of Controlled Trials、MEDLINE、EMBASE、Web of Science、Clinical Trials.gov、EBSCO、中国生物医学文献数据库、中国知网全文数据...目的分析间歇导尿对宫颈癌根治术后患者尿液引流的应用效果。方法在the Cochrane Central Register of Controlled Trials、MEDLINE、EMBASE、Web of Science、Clinical Trials.gov、EBSCO、中国生物医学文献数据库、中国知网全文数据库、中国科技期刊维普数据库和万方数据库中检索关于间歇导尿与经尿道留置导尿的随机对照试验。由两名研究人员根据事先共同设定的标准进行文献筛选、资料提取以及文献质量评价。采用Review Manager 5.3进行数据整合分析。结果初检出518篇,最终纳入10篇文献,累计研究实验对象1033例,其中干预组519例、对照组514例。Meta分析结果显示,两组泌尿系统感染发生例数[OR=0.10,95%CI为(0.07,0.14),P<0.001)、膀胱功能恢复例数[OR=6.94,95%CI为(4.70,10.26),P<0.001)、残余尿量[MD=-81.48,95%CI为(-107.68,-55.28),P<0.001)、带管时间[SMD=-1.24,95%CI为(-1.48,-1),P<0.001)差异有统计学意义。结论间歇导尿在宫颈癌根治术后患者尿液引流中的泌尿系统感染发生率、膀胱功能恢复等方面均优于经尿道留置导尿。展开更多
Gastrointestinal problems are common during wars, and they have exerted significant adverse effects on the health of service members involved in warfare. The spectrum of digestive diseases has varied during wars of di...Gastrointestinal problems are common during wars, and they have exerted significant adverse effects on the health of service members involved in warfare. The spectrum of digestive diseases has varied during wars of different eras. At the end of the 20 th century, new frontiers of military medical research emerged due to the occurrence of high-tech wars such as the Gulf War and the Kosovo War, in which ground combat was no longer the primary method of field operations. The risk to the military personnel who face trauma has been greatly reduced, but disease and non-battle injuries(DNBIs) such as neuropsychological disorders and digestive diseases seemed to be increased. Data revealed that gastrointestinal symptoms such as constipation, diarrhea, dyspepsia, and noncardiac chest pain are common among military personnel during modern wars. In addition, a large number of deployed soldiers and veterans who participated in recent wars presented with chronic gastrointestinal complaints, which fulfilled with the Rome III criteria for functional gastrointestinal disorders(FGIDs). It was also noted that many veterans who returned from the Gulf War suffered not only from chronic digestive symptoms but also from neuropsychological dysfunction; however, they also showed symptoms of other systems. Presently, this broad range of unexplained symptoms is known as "Gulf War syndrome". The mechanism that underlies Gulf War syndrome remains unclear, but many factors have been associated with this syndrome such as war trauma, stress, infections, immune dysfunction, radiological factors, anthrax vaccination and so on. Some have questioned if the diagnosis of FGIDs can be reached given the complexity of the military situation. As a result, further studies are needed to elucidate the pathogenesis of gastrointestinal disease among military personnel.展开更多
Lijiang-Daju fault, the seismogenic fault of the 1996 Lijiang M=7.0 earthquake, can be divided into Lijiang-Yuhu segment in the south and Yuhu-Daju segment in the north. The two segments show clear difference in geolo...Lijiang-Daju fault, the seismogenic fault of the 1996 Lijiang M=7.0 earthquake, can be divided into Lijiang-Yuhu segment in the south and Yuhu-Daju segment in the north. The two segments show clear difference in geological tectonics, but have the similar dynamic features. Both normal dip-slip and sinistral strike-slip coexist on the fault plane. This kind of movement started at the beginning of the Quaternary (2.4~2.5 Ma B.P.). As to the tectonic types, the detachment fault with low angle was developed in the Early Pleistocene and the normal fault with high angle only after the Mid-Pleistocene (0.8 Ma B.P.). Based on the horizontal displacements of gullies and the vertical variance of planation surfaces cross the Lijiang-Daju fault at east piedmont of Yulong-Haba range, the average horizontal and vertical slip rates are calculated. They are 0.84 mm/a and 0.70 mm/a since the Quaternary and 1.56 mm/a and 1.69 mm/a since the Mid-Pleistocene. The movements of the nearly N-S-trending Lijiang-Daju fault are controlled not only by the regional stress field, but also by the variant movement between the Yulong-Haba range and Lijiang basin. The two kinds of dynamic processes form the characteristics of seismotectonic environment of occurring the 1996 Lijiang earthquake.展开更多
目的:对枢椎骨折的外科治疗原则、治疗指征以及康复方法作一文献综述,为枢椎骨折并脊髓不全损伤的功能恢复提供理论依据.资料来源:应用计算机检索Medline 1978-05/2004-03的相关文章,检索词"Hangman'sfractures,Recovery of Fu...目的:对枢椎骨折的外科治疗原则、治疗指征以及康复方法作一文献综述,为枢椎骨折并脊髓不全损伤的功能恢复提供理论依据.资料来源:应用计算机检索Medline 1978-05/2004-03的相关文章,检索词"Hangman'sfractures,Recovery of Function",并限定文章语言种类为English.同时计算机检索http://www.wanfangdata.com.cn,限定文章语言种类为中文,检索词"枢椎骨折、脊髓不全损伤、功能恢复".资料选择:对资料进行初审,选取包括枢椎骨折的损伤机制、分类、诊断、康复方法等方面的文章.纳入标准:①随机对照临床实验.②观察对比研究.排除标准:①综述文献.②Meta分析.③同一研究.资料提炼:共收集到42篇关于枢椎骨折的文献,18篇文献符合纳入标准,排除的24篇系同一研究、综述和Meta分析等文献.资料综合:18篇文献包括1163例患者,分别对枢椎骨折的外科治疗原则、治疗指征以及康复方法作了评估.结论:一些新的内固定器材的应用及康复方法在不断完善,对恢复枢椎骨折患者脊柱生物力学稳定性,保存寰枢椎关节运动功能,以及对合并脊髓不全损伤患者的功能恢复具有重要意义.展开更多
The fundamental equations and the corresponding boundary condition of elastic mechanics under mechanical representation are given by using the conception of eigen space and elastic variation principle. It is proved th...The fundamental equations and the corresponding boundary condition of elastic mechanics under mechanical representation are given by using the conception of eigen space and elastic variation principle. It is proved theoretically that the solution of anisotropic elastic mechanics consists of modal ones, which are obtained respectively from the modal equation of the different subspaces. A simple application is also given.展开更多
A micro-robot with 4 DOFs is presented in this paper. An inchworm-like biped mechanical structure is selected with the advantages of small size and minimal weight. It can walk on wall as an inchworm with two different...A micro-robot with 4 DOFs is presented in this paper. An inchworm-like biped mechanical structure is selected with the advantages of small size and minimal weight. It can walk on wall as an inchworm with two different locomotion modes such as crawling and overturn. With rotation mode, this robot can change it＇ s motion direction. The robot can also transit between different surfaces. The kinematics model of the robot has been analyzed. A DSP based embedded controller is used for minimal power consumption and efficient control. The micro-robot can move flexibly and fit complicated un-structural environment well.展开更多
To understand the earthquake characteristics in Xinfengjiang (XFJ for short) reservoir area, we collected the small earthquakes occurred in the area from 1961 to 1999. We segmented this 40-year period, parted the rese...To understand the earthquake characteristics in Xinfengjiang (XFJ for short) reservoir area, we collected the small earthquakes occurred in the area from 1961 to 1999. We segmented this 40-year period, parted the research region and calculated the composite fault plane solution of each block, disscussed the effect characteristics of stress field of water pressure using Mohrs stress circle. The final result shows that the main rupture pattern was very different before and after the M = 6.1 main shock, changing from strike slip to normal rupture. The maximum principal stress axes of composite fault plane solutions are characterized by synchronous change with water level.展开更多
Mobility management is a very important function of mobile communication in all-IP radio heterogeneous network. In order to achieve an efficient mobility management, with low delay and low beacon overhead, a micro-mob...Mobility management is a very important function of mobile communication in all-IP radio heterogeneous network. In order to achieve an efficient mobility management, with low delay and low beacon overhead, a micro-mobile stream control transmission protocol (mmSCTP) scheme was proposed. This scheme reasonably utilizes SCTP features and elaborately designs execution-steps for vertical handoff. Moreover, it provides fast locating for idle mobile node when a session is initiated by the correspondent node. The analytical and simulation results show that the proposed scheme is effective in supporting fast vertical handoff and effective location management.展开更多
Two new ionone derivatives, named rhododendrone and rhododendronside, were isolated from the alcoholic extract of the aerial parts of Rhododendron przwalskii Maxim. Their structures were elucidated on the basis of spe...Two new ionone derivatives, named rhododendrone and rhododendronside, were isolated from the alcoholic extract of the aerial parts of Rhododendron przwalskii Maxim. Their structures were elucidated on the basis of spectroscopic analysis展开更多
文摘目的分析间歇导尿对宫颈癌根治术后患者尿液引流的应用效果。方法在the Cochrane Central Register of Controlled Trials、MEDLINE、EMBASE、Web of Science、Clinical Trials.gov、EBSCO、中国生物医学文献数据库、中国知网全文数据库、中国科技期刊维普数据库和万方数据库中检索关于间歇导尿与经尿道留置导尿的随机对照试验。由两名研究人员根据事先共同设定的标准进行文献筛选、资料提取以及文献质量评价。采用Review Manager 5.3进行数据整合分析。结果初检出518篇,最终纳入10篇文献,累计研究实验对象1033例,其中干预组519例、对照组514例。Meta分析结果显示,两组泌尿系统感染发生例数[OR=0.10,95%CI为(0.07,0.14),P<0.001)、膀胱功能恢复例数[OR=6.94,95%CI为(4.70,10.26),P<0.001)、残余尿量[MD=-81.48,95%CI为(-107.68,-55.28),P<0.001)、带管时间[SMD=-1.24,95%CI为(-1.48,-1),P<0.001)差异有统计学意义。结论间歇导尿在宫颈癌根治术后患者尿液引流中的泌尿系统感染发生率、膀胱功能恢复等方面均优于经尿道留置导尿。
文摘Gastrointestinal problems are common during wars, and they have exerted significant adverse effects on the health of service members involved in warfare. The spectrum of digestive diseases has varied during wars of different eras. At the end of the 20 th century, new frontiers of military medical research emerged due to the occurrence of high-tech wars such as the Gulf War and the Kosovo War, in which ground combat was no longer the primary method of field operations. The risk to the military personnel who face trauma has been greatly reduced, but disease and non-battle injuries(DNBIs) such as neuropsychological disorders and digestive diseases seemed to be increased. Data revealed that gastrointestinal symptoms such as constipation, diarrhea, dyspepsia, and noncardiac chest pain are common among military personnel during modern wars. In addition, a large number of deployed soldiers and veterans who participated in recent wars presented with chronic gastrointestinal complaints, which fulfilled with the Rome III criteria for functional gastrointestinal disorders(FGIDs). It was also noted that many veterans who returned from the Gulf War suffered not only from chronic digestive symptoms but also from neuropsychological dysfunction; however, they also showed symptoms of other systems. Presently, this broad range of unexplained symptoms is known as "Gulf War syndrome". The mechanism that underlies Gulf War syndrome remains unclear, but many factors have been associated with this syndrome such as war trauma, stress, infections, immune dysfunction, radiological factors, anthrax vaccination and so on. Some have questioned if the diagnosis of FGIDs can be reached given the complexity of the military situation. As a result, further studies are needed to elucidate the pathogenesis of gastrointestinal disease among military personnel.
基金Joint Seismological Science Foundation of China (198023) and National Natural Science Foundation (40272087).
文摘Lijiang-Daju fault, the seismogenic fault of the 1996 Lijiang M=7.0 earthquake, can be divided into Lijiang-Yuhu segment in the south and Yuhu-Daju segment in the north. The two segments show clear difference in geological tectonics, but have the similar dynamic features. Both normal dip-slip and sinistral strike-slip coexist on the fault plane. This kind of movement started at the beginning of the Quaternary (2.4~2.5 Ma B.P.). As to the tectonic types, the detachment fault with low angle was developed in the Early Pleistocene and the normal fault with high angle only after the Mid-Pleistocene (0.8 Ma B.P.). Based on the horizontal displacements of gullies and the vertical variance of planation surfaces cross the Lijiang-Daju fault at east piedmont of Yulong-Haba range, the average horizontal and vertical slip rates are calculated. They are 0.84 mm/a and 0.70 mm/a since the Quaternary and 1.56 mm/a and 1.69 mm/a since the Mid-Pleistocene. The movements of the nearly N-S-trending Lijiang-Daju fault are controlled not only by the regional stress field, but also by the variant movement between the Yulong-Haba range and Lijiang basin. The two kinds of dynamic processes form the characteristics of seismotectonic environment of occurring the 1996 Lijiang earthquake.
文摘目的:对枢椎骨折的外科治疗原则、治疗指征以及康复方法作一文献综述,为枢椎骨折并脊髓不全损伤的功能恢复提供理论依据.资料来源:应用计算机检索Medline 1978-05/2004-03的相关文章,检索词"Hangman'sfractures,Recovery of Function",并限定文章语言种类为English.同时计算机检索http://www.wanfangdata.com.cn,限定文章语言种类为中文,检索词"枢椎骨折、脊髓不全损伤、功能恢复".资料选择:对资料进行初审,选取包括枢椎骨折的损伤机制、分类、诊断、康复方法等方面的文章.纳入标准:①随机对照临床实验.②观察对比研究.排除标准:①综述文献.②Meta分析.③同一研究.资料提炼:共收集到42篇关于枢椎骨折的文献,18篇文献符合纳入标准,排除的24篇系同一研究、综述和Meta分析等文献.资料综合:18篇文献包括1163例患者,分别对枢椎骨折的外科治疗原则、治疗指征以及康复方法作了评估.结论:一些新的内固定器材的应用及康复方法在不断完善,对恢复枢椎骨折患者脊柱生物力学稳定性,保存寰枢椎关节运动功能,以及对合并脊髓不全损伤患者的功能恢复具有重要意义.
文摘The fundamental equations and the corresponding boundary condition of elastic mechanics under mechanical representation are given by using the conception of eigen space and elastic variation principle. It is proved theoretically that the solution of anisotropic elastic mechanics consists of modal ones, which are obtained respectively from the modal equation of the different subspaces. A simple application is also given.
文摘A micro-robot with 4 DOFs is presented in this paper. An inchworm-like biped mechanical structure is selected with the advantages of small size and minimal weight. It can walk on wall as an inchworm with two different locomotion modes such as crawling and overturn. With rotation mode, this robot can change it＇ s motion direction. The robot can also transit between different surfaces. The kinematics model of the robot has been analyzed. A DSP based embedded controller is used for minimal power consumption and efficient control. The micro-robot can move flexibly and fit complicated un-structural environment well.
文摘To understand the earthquake characteristics in Xinfengjiang (XFJ for short) reservoir area, we collected the small earthquakes occurred in the area from 1961 to 1999. We segmented this 40-year period, parted the research region and calculated the composite fault plane solution of each block, disscussed the effect characteristics of stress field of water pressure using Mohrs stress circle. The final result shows that the main rupture pattern was very different before and after the M = 6.1 main shock, changing from strike slip to normal rupture. The maximum principal stress axes of composite fault plane solutions are characterized by synchronous change with water level.
基金Mobile communication technology project ofChinese Education Ministry (A8082)
文摘Mobility management is a very important function of mobile communication in all-IP radio heterogeneous network. In order to achieve an efficient mobility management, with low delay and low beacon overhead, a micro-mobile stream control transmission protocol (mmSCTP) scheme was proposed. This scheme reasonably utilizes SCTP features and elaborately designs execution-steps for vertical handoff. Moreover, it provides fast locating for idle mobile node when a session is initiated by the correspondent node. The analytical and simulation results show that the proposed scheme is effective in supporting fast vertical handoff and effective location management.
文摘Two new ionone derivatives, named rhododendrone and rhododendronside, were isolated from the alcoholic extract of the aerial parts of Rhododendron przwalskii Maxim. Their structures were elucidated on the basis of spectroscopic analysis
