期刊文献+
共找到1,097篇文章
< 1 2 55 >
每页显示 20 50 100
论死因裁判制度在我国的建构与前景 被引量:12
1
作者 张栋 《法律科学(西北政法大学学报)》 CSSCI 北大核心 2014年第4期163-172,共10页
我国2012年修改后的刑事诉讼法在鉴定意见部分作了较大改动,包括引入专家证人制度,加强鉴定人的出庭等等,这会对提高我国死因结论的质量产生明显的促进作用,但"游济安"等案件暴露出了一个尖锐的问题:如果警方得出了一个意外... 我国2012年修改后的刑事诉讼法在鉴定意见部分作了较大改动,包括引入专家证人制度,加强鉴定人的出庭等等,这会对提高我国死因结论的质量产生明显的促进作用,但"游济安"等案件暴露出了一个尖锐的问题:如果警方得出了一个意外事件的结论,案件根本不会进入刑事诉讼程序,那么,我们在刑事诉讼法中为解决此类问题所作的一切设计和努力都将落空。因此,在中国的现实语境下,非常有必要将死因结论的形成作为单独的前置程序明确加以设定,这就是死因裁判制度。应当在现有法律框架下就陪审制度,报告制度,责任制度等一系列内容予以明确立法,通过程序化的设计,有效地吸收社会不满,提高民众的公正感和伸张社会正义。 展开更多
关键词 死因裁判制度 陪审团 死因裁判官
原文传递
我国死因查明制度构建研究
2
作者 卫跃宁 王佳星 《医学与法学》 2024年第4期16-23,共8页
目前我国死因查明相关规则存在主体不中立、程序封闭、范围不明、救济途径欠缺等问题;针对非正常死亡事件的调查及死因认定问题而建立专门的死因查明制度,对减少死因争议、防范冤假错案确有必要。结合我国司法制度现状及死因争议中的突... 目前我国死因查明相关规则存在主体不中立、程序封闭、范围不明、救济途径欠缺等问题;针对非正常死亡事件的调查及死因认定问题而建立专门的死因查明制度,对减少死因争议、防范冤假错案确有必要。结合我国司法制度现状及死因争议中的突出问题,参考世界范围内死因查明制度的先进经验,可在人民检察院设立死因查明委员会作为专门的死因查明部门,以明确的法律规则以规范死因查明程序适用范围、死亡调查、死因鉴定及死因认定程序等,保障当事人参与死因查明程序的权利,并在其对死因结论有异议时提供法律救济。 展开更多
关键词 死因查明 人民检察院 死因裁判 法医学鉴定
下载PDF
死因调查制度的问题与重构——以普通法系的死因裁判制度为借鉴 被引量:9
3
作者 吴啟铮 《比较法研究》 CSSCI 北大核心 2016年第3期127-147,共21页
当今世界的死因调查制度大致可以分为独立式模式与附属式模式两大类。我国的死因调查制度完全附属于刑事诉讼,并不存在一套独立、完整的死因调查制度体系,且由侦查机关完全主导,导致了程序逻辑上的悖论和结构上的失衡,在部分案件的实践... 当今世界的死因调查制度大致可以分为独立式模式与附属式模式两大类。我国的死因调查制度完全附属于刑事诉讼,并不存在一套独立、完整的死因调查制度体系,且由侦查机关完全主导,导致了程序逻辑上的悖论和结构上的失衡,在部分案件的实践中造成了司法公信力的弱化。普通法系的死因裁判制度具有独立性强、程序公正、社会参与度高、司法公信力强的优点。我国可借鉴普通法系的死因裁判制度且结合自身司法体制的特点,确立独立式的死因调查模式,建立死因调查委员会,完善调查程序,使调查结论更具社会公信力。 展开更多
关键词 死因调查制度 死因裁判制度 死因调查模式
原文传递
英国死因裁判制度的功能、特色与镜鉴
4
作者 孙大明 《中国司法鉴定》 2024年第2期25-32,共8页
英国死因裁判制度源远流长,至今对多国死因调查程序仍有重要影响。从制度初建到系统完善,英国死因裁判制度既具死因调查的独立性、公开性和全面性等鲜明特色,也展现出制度本身的程序价值和实体功能。在镜鉴英国死因裁判制度优点的基础上... 英国死因裁判制度源远流长,至今对多国死因调查程序仍有重要影响。从制度初建到系统完善,英国死因裁判制度既具死因调查的独立性、公开性和全面性等鲜明特色,也展现出制度本身的程序价值和实体功能。在镜鉴英国死因裁判制度优点的基础上,从扩展死因调查方式、理顺与死因鉴定的关系、适当公开死因调查结果以及建立特殊案件死因听证制度等方面完善死因认定制度。尽快构建符合我国国情的现代化死因调查、鉴定和裁判制度。 展开更多
关键词 死因裁判制度 死因调查 死因鉴定 法医病理学
下载PDF
美国法庭科学与法医机构普查报告评述——兼论我国司法鉴定行业统计及机构设置
5
作者 张宇宽 《证据科学》 2024年第1期105-128,F0003,共25页
司法鉴定机构的设置及其资源配置一直以来都是司法鉴定管理体制改革的重要一环。司法鉴定机构在我国作为司法鉴定人的工作单位和鉴定意见的最终出具单位,其机构设置及资源配置对于一个司法辖区的司法质量也有着较大影响。本文以比较研... 司法鉴定机构的设置及其资源配置一直以来都是司法鉴定管理体制改革的重要一环。司法鉴定机构在我国作为司法鉴定人的工作单位和鉴定意见的最终出具单位,其机构设置及资源配置对于一个司法辖区的司法质量也有着较大影响。本文以比较研究为视角,首先评述美国四次公立法庭科学犯罪实验室普查报告及两次法医及验尸官办公室系列普查报告的主要结果,并与我国司法鉴定行业统计及机构设置现状进行比较。通过比较分析,发现我国司法鉴定管理体制下的司法鉴定行业统计具有独特优势,但其统计项目和范围有待改良,尤其应尽快开展鉴定机构运行预算的调查与相关统计。与此同时,我国司法鉴定机构小而多的现状尚未改变,在健全统一司法鉴定管理体制的大背景下,应当坚持统筹协调的发展道路,完善退出机制,适应需要发展司法鉴定队伍,并探索对现有鉴定机构资源的进一步整合。 展开更多
关键词 法庭科学犯罪实验室 法医局及验尸官机构 司法鉴定机构 行业统计 机构设置
原文传递
英国死因裁判官制度:历史、现状及功能
6
作者 翟欢 《齐齐哈尔大学学报(哲学社会科学版)》 2023年第12期87-90,共4页
英国死因裁判官制度起源于12世纪,至今已有800多年的历史。死因裁判官在历史发展过程中由中世纪的“诉讼记录官”逐渐蜕变为处理非正常死亡的专门法官,专业性也不断提高。死因裁判官的通过死因研讯对非正常开展死亡死因调查工作,该程序... 英国死因裁判官制度起源于12世纪,至今已有800多年的历史。死因裁判官在历史发展过程中由中世纪的“诉讼记录官”逐渐蜕变为处理非正常死亡的专门法官,专业性也不断提高。死因裁判官的通过死因研讯对非正常开展死亡死因调查工作,该程序表现出独立性、公开性、参与性的特点。英国死因裁判官制度对于发现隐秘犯罪、防范死亡风险、维护社会稳定具有重要意义。 展开更多
关键词 非正常死亡 死因裁判官 英国
下载PDF
云芝多糖对冠心病患者血清OxLDL和NO含量的影响 被引量:4
7
作者 黄敏珍 郭志刚 +2 位作者 崔玉民 陈瑗 周玫 《第一军医大学学报》 CSCD 1999年第5期441-443,共3页
为探讨云芝多糖对动脉粥样硬化(AS)的治疗作用,我们用氧化修饰低密度脂蛋白(Ox-LDL)单克隆抗体检测和硝酸还原酶法观察了冠心病患者血清OxLDL和NO含量的变化以及云芝多糖对这些变化的影响,结果显示:(1)冠心病... 为探讨云芝多糖对动脉粥样硬化(AS)的治疗作用,我们用氧化修饰低密度脂蛋白(Ox-LDL)单克隆抗体检测和硝酸还原酶法观察了冠心病患者血清OxLDL和NO含量的变化以及云芝多糖对这些变化的影响,结果显示:(1)冠心病组血清OxLDL含量显著高于正常对照组(P<0.01),NO含量显著低于正常对照组(P<0.01〕;(2)口服云之多糖30天后冠心病患者血清OxLDL含量明显下降(P<0.01)而NO含量显著升高(P<0.01)。提示云芝多糊4冠心病具有一定的治疗作用。 展开更多
关键词 一氧化氮 云芝多糖 冠心病 OXLDL
下载PDF
“魔警”徐步高案中不确定事项的分析 被引量:1
8
作者 博汉仕 陈波 谭程予 《犯罪研究》 2015年第1期100-112,共13页
香港警察之间发生的罕见枪击案导致两名警察丧命,引起了媒体的广泛关注,探究原因。应香港警方的请求,作者帮助警方评析此案的侦查。死因裁判调查让此前的两起枪击杀人案也迎刃而解。借助此桩非同寻常的案件,本文探究了如何通过减少不确... 香港警察之间发生的罕见枪击案导致两名警察丧命,引起了媒体的广泛关注,探究原因。应香港警方的请求,作者帮助警方评析此案的侦查。死因裁判调查让此前的两起枪击杀人案也迎刃而解。借助此桩非同寻常的案件,本文探究了如何通过减少不确定性来弥补法益分析和行为学分析的缺陷。动机和嫌犯的精神健康的不确定导致精神病学、心理学和行为学分析以及犯罪学的解释存在差异。本文比较了上述学科中的专家意见对不确定事项的解读,认为明确识别不确定事项是实施侦查的路径。 展开更多
关键词 凶杀案 香港 不确定事项 警察枪击 徐步高 剖析 死因裁判
下载PDF
Management of distal humeral coronal shear fractures 被引量:16
9
作者 Shahram S Yari Nathan L Bowers +1 位作者 Miguel A Craig Lee M Reichel 《World Journal of Clinical Cases》 SCIE 2015年第5期405-417,共13页
Coronal shear fractures of the distal humerus are rare,complex fractures that can be technically challenging to manage. They usually result from a low-energy fall and direct compression of the distal humerus by the ra... Coronal shear fractures of the distal humerus are rare,complex fractures that can be technically challenging to manage. They usually result from a low-energy fall and direct compression of the distal humerus by the radial head in a hyper-extended or semi-flexed elbow or from spontaneous reduction of a posterolateral subluxation or dislocation. Due to the small number of soft tissue attachments at this site, almost all of these fractures are displaced. The incidence of distal humeral coronal shear fractures is higher among women because of the higher rate of osteoporosis in women and the difference in carrying angle between men and women. Distal humeral coronal shear fractures may occur in isolation, may be part of a complex elbow injury, or may be associated with injuries proximal or distal to the elbow. An associated lateral collateral ligament injury is seen in up to 40% and an associated radial head fracture is seen in up to 30% of these fractures. Given the complex nature of distal humeral coronal shear fractures, there is preference for operative management. Operative fixation leads to stable anatomic reduction, restores articular congruity, and allows initiation of early range-of-motion movements in the majority of cases. Several surgical exposure and fixation techniques are available to reconstruct the articular surface fol owing distal humeral coronal shear fractures. The lateral extensile approach and fixation with countersunk headless compression screws placed in an anterior-to-posterior fashion are commonly used. We have found a two-incision approach(direct anterior and lateral) that results in less soft tissue dissection and better outcomes than the lateral extensile approach in our experience. Stiffness, pain, articular incongruity, arthritis, and ulnohumeral instability may result if reduction is non-anatomic or if fixation fails. 展开更多
关键词 coronAL Shear Fractures DISTAL HUMERUS MANAGEMENT Approach Two-incision
下载PDF
Recent progress of solar physics research in China 被引量:14
10
作者 Cheng Fang 1 School of Astronomy and Space Science,Nanjing University,Nanjing 210093,China 2 Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University),Ministry of Education,China 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2011年第12期1377-1402,共26页
Owing to the largely improved facilities and working conditions, solar physics research in China has recently shown marked development. This paper reports on the recent progress of solar physics research in China'... Owing to the largely improved facilities and working conditions, solar physics research in China has recently shown marked development. This paper reports on the recent progress of solar physics research in China's Mainland, mainly focusing on several hot issues, including instrumentations, magnetic field observations and research, solar flares, filaments and their eruptions, coronal mass ejections and related processes, as well as active regions and the corona, small-scale phenomena, solar activity and its predictions. A vision of the future is also described. 展开更多
关键词 Sun: general -- Sun: coronal mass ejections (CMEs) -- solar physics:recent progress
下载PDF
Origin and structures of solar eruptions Ⅰ: Magnetic flux rope 被引量:13
11
作者 CHENG Xin GUO Yang DING MingDe 《Science China Earth Sciences》 SCIE EI CAS CSCD 2017年第8期1383-1407,共25页
Coronal mass ejections(CMEs) and solar flares are the large-scale and most energetic eruptive phenomena in our solar system and able to release a large quantity of plasma and magnetic flux from the solar atmosphere in... Coronal mass ejections(CMEs) and solar flares are the large-scale and most energetic eruptive phenomena in our solar system and able to release a large quantity of plasma and magnetic flux from the solar atmosphere into the solar wind. When these high-speed magnetized plasmas along with the energetic particles arrive at the Earth, they may interact with the magnetosphere and ionosphere, and seriously affect the safety of human high-tech activities in outer space. The travel time of a CME to 1 AU is about 1–3 days, while energetic particles from the eruptions arrive even earlier. An efficient forecast of these phenomena therefore requires a clear detection of CMEs/flares at the stage as early as possible. To estimate the possibility of an eruption leading to a CME/flare, we need to elucidate some fundamental but elusive processes including in particular the origin and structures of CMEs/flares. Understanding these processes can not only improve the prediction of the occurrence of CMEs/flares and their effects on geospace and the heliosphere but also help understand the mass ejections and flares on other solar-type stars. The main purpose of this review is to address the origin and early structures of CMEs/flares, from multi-wavelength observational perspective. First of all, we start with the ongoing debate of whether the pre-eruptive configuration, i.e., a helical magnetic flux rope(MFR), of CMEs/flares exists before the eruption and then emphatically introduce observational manifestations of the MFR. Secondly, we elaborate on the possible formation mechanisms of the MFR through distinct ways. Thirdly, we discuss the initiation of the MFR and associated dynamics during its evolution toward the CME/flare. Finally, we come to some conclusions and put forward some prospects in the future. 展开更多
关键词 coronal mass ejections Flares Magnetic flux ropes Magnetic field EUV/UV emissions Photosphere corona Particle acceleration
原文传递
Effect of Femoral Resection on Coronal Overall Alignment after Conventional Total Knee Arthroplasty 被引量:10
12
作者 Min-Wei Zhao Lu Wang +3 位作者 Lin Zeng Yu-Qing Hu Jin-Xin Hu Hua Tian 《Chinese Medical Journal》 SCIE CAS CSCD 2016年第21期2535-2539,共5页
Background:A good postoperative alignment in total knee arthroplasty (TKA) is the key to achieving satisfactory results.We assessed the effect of femoral and tibial resection on the overall alignment after conventi... Background:A good postoperative alignment in total knee arthroplasty (TKA) is the key to achieving satisfactory results.We assessed the effect of femoral and tibial resection on the overall alignment after conventional TKA.Methods:We conducted a retrospective analysis of 212 primary TKAs in 188 patients.Intramedullary (IM)-guided resection was applied on the femoral side while extramedullary (EM)-guided resection was used on the tibial side.Using full-length X-ray,the preoperative femoral valgus angle and lower extremity alignment,as well as 2-week postoperative femoral and tibial prosthetic coronal alignment and overall lower extremity alignment,were measured.Results:Postoperatively,good prosthetic alignment was achieved in 191 cases (90.1%) on the tibial side and in 144 cases (67.9%) on the femoral side (χ^2 =5.441,P =0.02).Multiple linear regression analysis was used to assess the effect of different alignment sides on the overall alignment in the coronal plane.Data were divided into five subgroups based on the valgus or varus status of the prostheses.The standardized regression coefficients of the femoral and tibial prosthetic alignment on the overall alignment were 0.666 and 0.414,respectively;in varus on both sides were 0.658 and 0.377,respectively;in valgus,0.555 and 0.030;femoral side varus and tibial side valgus,0.702 and 0.211;femoral side valgus and tibial side varus,-0.416 and 0.287.The study showed that the overall low extremity alignment was statistically influenced by the prosthetic alignment,except for the tibial prosthetic alignment when femoral prosthesis was in valgus (P =0.153).Conclusions:In conventional TKA,tibial side EM-guided resection may offer satisfactory postoperative alignment,and femoral resection relying on IM guide may lead to more undesirable results.Postoperative coronal alignment is mainly affected by the femoral resection.Therefore,femoral side operation should receive adequate attention from the surgeons. 展开更多
关键词 Accuracy Conventional Resection Extramedullary Guide lntramedullary Guide Prosthetic coronal Alignment Total Knee Arthroplasty
原文传递
Origin and structures of solar eruptions Ⅱ: Magnetic modeling 被引量:10
13
作者 GUO Yang CHENG Xin DING MingDe 《Science China Earth Sciences》 SCIE EI CAS CSCD 2017年第8期1408-1439,共32页
The topology and dynamics of the three-dimensional magnetic field in the solar atmosphere govern various solar eruptive phenomena and activities, such as flares, coronal mass ejections, and filaments/prominences. We h... The topology and dynamics of the three-dimensional magnetic field in the solar atmosphere govern various solar eruptive phenomena and activities, such as flares, coronal mass ejections, and filaments/prominences. We have to observe and model the vector magnetic field to understand the structures and physical mechanisms of these solar activities. Vector magnetic fields on the photosphere are routinely observed via the polarized light, and inferred with the inversion of Stokes profiles. To analyze these vector magnetic fields, we need first to remove the 180° ambiguity of the transverse components and correct the projection effect. Then, the vector magnetic field can be served as the boundary conditions for a force-free field modeling after a proper preprocessing. The photospheric velocity field can also be derived from a time sequence of vector magnetic fields.Three-dimensional magnetic field could be derived and studied with theoretical force-free field models, numerical nonlinear force-free field models, magnetohydrostatic models, and magnetohydrodynamic models. Magnetic energy can be computed with three-dimensional magnetic field models or a time series of vector magnetic field. The magnetic topology is analyzed by pinpointing the positions of magnetic null points, bald patches, and quasi-separatrix layers. As a well conserved physical quantity,magnetic helicity can be computed with various methods, such as the finite volume method, discrete flux tube method, and helicity flux integration method. This quantity serves as a promising parameter characterizing the activity level of solar active regions. 展开更多
关键词 Solar activity Solar corona coronal Mass Ejections(CMEs) Solar flares Magnetic fields Solar photosphere
原文传递
全膝关节置换后下肢力线及假体力线与疗效和假体松动率的关系 被引量:10
14
作者 杨硕 冯硕 +4 位作者 徐崇俊 唐金龙 裴方 查国春 陈向阳 《中国组织工程研究》 CAS 北大核心 2019年第24期3780-3785,共6页
背景:对于全膝关节置换后最佳下肢力线的争议仍然较多,而国内对于下肢力线与临床疗效关系的研究较少。目的:分析膝骨性关节炎患者全膝关节置换后下肢力线(髋-膝-踝角)、股骨假体力线(股骨假体角)、胫骨假体力线(胫骨假体角)与临床疗效... 背景:对于全膝关节置换后最佳下肢力线的争议仍然较多,而国内对于下肢力线与临床疗效关系的研究较少。目的:分析膝骨性关节炎患者全膝关节置换后下肢力线(髋-膝-踝角)、股骨假体力线(股骨假体角)、胫骨假体力线(胫骨假体角)与临床疗效、假体松动率的关系。方法:回顾性分析2015年3月至2016年12月初次行全膝关节置换的膝关节骨性关节炎患者118例(139膝),所有患者对治疗方案均知情同意,且得到医院伦理委员会批准。摄患肢下肢全长X射线片、测量置换前后股骨胫骨机械轴夹角(髋-膝-踝角)、股骨假体远端内侧角(股骨假体角)、胫骨假体近端内侧角(胫骨假体角)。术后定期随访膝关节活动度、美国特种外科医院评分评价全膝关节置换后临床疗效。随后根据最新随访复查X射线片,采用EWALD标准查找假体松动、骨溶解、断裂的迹象。分析全膝关节置换后下肢力线(髋-膝-踝角)、股骨假体力线(股骨假体角)、胫骨假体力线(胫骨假体角)与临床疗效、假体松动率的关系。结果与结论:①118例(139膝)均获得随访,随访时间(35.8±6.2)个月,未发现假体松动、骨溶解、断裂的迹象;②对于下肢力线,中立组与内翻组、外翻组置换后美国特种外科医院评分差异有显著性意义(P<0.05),且中立组评分最高;③对于股骨假体力线,只有中立组与外翻组之间置换后美国特种外科医院评分差异有显著性意义(P <0.05),且中立组评分更高;④胫骨假体力线3组间置换后美国特种外科医院评分差异无显著性意义(P>0.05);⑤提示传统全膝关节置换后中性力线[下肢力线中立组髋-膝-踝角=(180±3)°]依然为全膝关节置换后推荐的恢复力线,应当尽量避免术后内、外翻力线。短期随访中,全膝关节置换后下肢力线及假体力线对假体松动无影响。 展开更多
关键词 膝关节置换 膝骨关节炎 冠状面 下肢力线 膝关节活动度、美国特种外科医院评分 髋-膝-踝角 股骨假体角 胫骨假体角
下载PDF
The Lyman-alpha Solar Telescope (LST) for the ASO-S mission——Ⅰ. Scientific objectives and overview 被引量:8
15
作者 Hui Li Bo Chen +20 位作者 Li Feng Ying Li Yu Huang Jing-Wei Li Lei Lu Jian-Chao Xue Bei-Li Ying Jie Zhao Yu-Tong Yang Wei-Qun Gan Cheng Fang Ke-Fei Song Hong Wang Quan-Feng Guo Ling-Ping He Bo Zhu Cheng Zhu Lei Deng Hai-Chao Bao Cai-Xia Cao Zhong-Guang Yang 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2019年第11期23-32,共10页
As one of the payloads for the Advanced Space-based Solar Observatory(ASO-S)mission,the Lyman-alpha(Lyα)Solar Telescope(LST)is aimed at imaging the Sun and the inner corona up to 2.5 R⊙(mean solar radius)in both the... As one of the payloads for the Advanced Space-based Solar Observatory(ASO-S)mission,the Lyman-alpha(Lyα)Solar Telescope(LST)is aimed at imaging the Sun and the inner corona up to 2.5 R⊙(mean solar radius)in both the Lyα(121.6 nm)and visible wavebands with high temporo-spatial resolution,mainly targeting solar flares,coronal mass ejections(CMEs)and filaments/prominences.LST observations allow us to trace solar eruptive phenomena from the disk center to the inner corona,to study the relationships between eruptive prominences/filaments,solar flares and CMEs,to explore the dynamical processes and evolution of solar eruptions,to diagnose solar winds,and to derive physical parameters of the solar atmosphere.LST is actually an instrument suite,which consists of a Solar Disk Imager(SDI),a Solar Corona Imager(SCI),a White-light Solar Telescope(WST)and two Guide Telescopes(GTs).This is the first paper in a series of LST-related papers.In this paper,we introduce the scientific objectives,present an overview of the LST payload and describe the planned observations.The detailed design and data along with potential diagnostics are described in the second(Paper II)and third(Paper III)papers,respectively,appearing in this issue. 展开更多
关键词 SUN flares-Sun coronal mass ejections(CMEs)-Sun filaments prominences-Sun corona-Sun chromosphere-Sun UV radiation
下载PDF
Numerical Simulation of the 12 May 1997 CME Event 被引量:7
16
作者 周玉芬 冯学尚 吴式灿 《Chinese Physics Letters》 SCIE CAS CSCD 2008年第2期790-793,共4页
Our newly developed CESE MHD model is used to simulate sun-earth connection event with the well-studied 12 May 1997 CME event as an example. The main features and approximations of our numerical model are as follows:... Our newly developed CESE MHD model is used to simulate sun-earth connection event with the well-studied 12 May 1997 CME event as an example. The main features and approximations of our numerical model are as follows: (1) The modifed conservation element and solution element (CESE) numerical scheme in spherical geometry is implemented in our code. (2) The background solar wind is derived from a 3D time-dependent numerical MHD model by input measured photospheric magnetic fields. (3) Transient disturbances are derived from solar surface by introducing a mass flow of hot plasma. The numerical simulation has enabled us to predict the arrival of the interplanetary shock and provided us with a relatively satisfactory comparison with the WIND spacecraft observations. 展开更多
关键词 coronAL MASS EJECTION SOLAR-WIND MHD SIMULATION PROPAGATION
下载PDF
Possible Connections between X-Solar Flares and Worldwide Variation in Seismicity Enhancement 被引量:6
17
作者 Marilia Hagen Anibal Azevedo 《Natural Science》 2017年第12期457-476,共20页
We developed a?statistical study analyzing global seismicity enhancement and its variation?overtwenty years.?X-flares sometimes occur in conjunction with Coronal Mass Ejections (CME),which make their connection with t... We developed a?statistical study analyzing global seismicity enhancement and its variation?overtwenty years.?X-flares sometimes occur in conjunction with Coronal Mass Ejections (CME),which make their connection with the Earth’s magnetosphere stronger.?The preliminary study divided the Earth into seven regions determined by longitude and latitude, and nine levels of depth valid for most locations?in the?Pacific area.?The results showed that X beams influenced seismicity in terrestrial localities, mainly high magnitude earthquakes occurring below the crust at 70 km.?These internal enhancements happen without the presence of any external forces such as studied in Solar Speed Winds.?Nevertheless, those variations are perceptible in the presence of intense X flares and CME and less observed in the periods during which flares were absent. Two cases of high magnitude earthquakes in recent?years are analyzed, and the extreme external conditions of those events fit?with this theory. 展开更多
关键词 Sun Solar Wind coronAL Mass Ejections X-Flares EARTHQUAKES
下载PDF
低位肱骨远端骨折的手术策略与治疗效果 被引量:8
18
作者 樊健 季佳庆 +7 位作者 张鑫 郭秀武 姚英 周家钤 李山珠 袁锋 俞光荣 程黎明 《中华外科杂志》 CAS CSCD 北大核心 2020年第3期213-219,共7页
目的探讨低位肱骨远端骨折患者的手术策略与治疗效果。方法回顾性分析2016年1月至2018年1月于同济大学附属同济医院骨科经手术治疗的16例新鲜肱骨鹰嘴窝以远骨折患者的临床资料。患者骨折形态呈肱骨头冠状面骨折、部分合并肱骨滑车及后... 目的探讨低位肱骨远端骨折患者的手术策略与治疗效果。方法回顾性分析2016年1月至2018年1月于同济大学附属同济医院骨科经手术治疗的16例新鲜肱骨鹰嘴窝以远骨折患者的临床资料。患者骨折形态呈肱骨头冠状面骨折、部分合并肱骨滑车及后髁骨折。按Dubberley分型,Ⅰ型9例、Ⅱ型3例、Ⅲ型4例。根据骨折类型及形态选择手术入路及内固定方式:单纯肱骨头冠状面骨折或合并滑车骨折的骨折面较稳定的患者采用外侧入路,行单枚或多枚埋头螺钉固定;肱骨头冠状面骨折合并滑车粉碎性骨折、骨折面移位明显者采用尺骨鹰嘴截骨入路,行后外侧锁定钢板及埋头螺钉复合内固定。术后2周观察创面、软组织恢复情况。术后3、6、12个月行影像学检查评估骨折复位愈合、内固定位置、骨关节炎等情况及肘关节活动范围,末次随访采用Mayo评分系统评估肘关节功能,对不同Dubberley分型患者功能恢复情况进行比较。计量资料组间比较采用Kruskal-Wallis H检验。结果16例患者均获得随访,随访时间(22.1±9.2)个月(范围:15~39个月)。术后2周患者切口愈合良好,无软组织感染、坏死及血管神经损伤等并发症。术后3个月影像学检查提示患者骨折均愈合,骨折复位无丢失,内固定无松动断裂。术后6个月1例患者出现异位骨化,经非甾体类抗炎药物治疗后缓解,1例术后出现尺神经炎症状,将长螺钉取出并松解尺神经后症状缓解。12个月随访时均未出现骨关节炎影像学表现,患者肘关节的最大屈曲角度为(120.4±11.2)°,最大背伸角度为(5.5±1.9)°。肘关节功能Mayo评分为(88.7±9.1)分,其中优11例、良4例、一般1例。DubberleyⅠ型患者Mayo评分为(90.1±3.7)分,Ⅱ型患者Mayo评分为(89.7±4.6)分,Ⅲ型患者Mayo评分为(84.5±5.8)分,三种分型患者的Mayo评分的差异无统计学意义(H=4.02,P>0.05)。结论根据低位肱骨远端骨折患� 展开更多
关键词 肱骨骨折 内固定器 肱骨滑车 冠状面 低位肱骨远端
原文传递
特发性脊柱侧凸术后躯干失平衡及其原因分析 被引量:8
19
作者 李明 倪春鸿 +4 位作者 侯铁胜 赵新刚 朱晓东 陈语 白玉树 《颈腰痛杂志》 2003年第6期327-330,共4页
目的 对 6 2例行后路矫形的青少年特发性脊柱侧凸术前及术后躯干平衡情况进行回顾性观察 ,探讨术后躯干失平衡的可能原因。方法 回顾性分析 1997年至 2 0 0 1年连续收治施行三维矫形手术的 6 2例特发性脊柱侧凸患者。平均年龄 14 .4... 目的 对 6 2例行后路矫形的青少年特发性脊柱侧凸术前及术后躯干平衡情况进行回顾性观察 ,探讨术后躯干失平衡的可能原因。方法 回顾性分析 1997年至 2 0 0 1年连续收治施行三维矫形手术的 6 2例特发性脊柱侧凸患者。平均年龄 14 .4岁 ,术后平均随访时间 35月 (12月~5 7月 )。进行 CD、TSRH及 CD Horizon系统的矫形内固定脊柱融合术 ,观察各型脊柱侧凸术后的躯干平衡情况。结果 有 5 3例 (85 .5 % )患者术前 X线片检查提示冠状面有 1cm以上的失平衡。失平衡以向左侧多见 (占 95 % ) ,范围在 - 3.4 cm到 +4.3cm之间 ,平均为 +3.1cm。 4 8%的患者术后X线片检查仍有失平衡存在 ,但平均偏离距离为 +1.2 cm ,较术前有显著改善。结论 三维矫形术后躯干失代偿的发生可能主要与融合节段尤其是下方融合节段选择不当有关。骨骼成熟度较低的患者 。 展开更多
关键词 特发性脊柱侧凸 术后并发症 躯干失平衡 三维矫形手术 脊柱融合术
下载PDF
Finite Element Analysis of Coronal Shear Fractures of the Femoral Neck: Displacement of the Femoral Head and Effect of Osteosynthetic Implants
20
作者 Yukino Mori Hiroaki Kijima +2 位作者 Mei Terashi Takehiro Iwami Naohisa Miyakoshi 《World Journal of Engineering and Technology》 2024年第3期651-664,共14页
Coronal shear fractures of the femoral neck (CSFF) are the most challenging to treat among proximal femur fractures, directly affecting the life expectancy of patients with osteoporosis. However, an adequate osteosynt... Coronal shear fractures of the femoral neck (CSFF) are the most challenging to treat among proximal femur fractures, directly affecting the life expectancy of patients with osteoporosis. However, an adequate osteosynthesis method has not been elucidated yet. This study investigated the displacement direction of the femoral head fragment and its effect on the bone using finite element method. A finite element model for CSFF was developed from CT image data of a patient with osteoporosis using Mechanical Finder (ver. 11). Subsequently, finite element analyses were performed on six osteosynthesis models under maximum load applied during walking. The compressive stresses, tensile stresses, and compressive strains of each model were examined. The results suggested that the compressive and tensile stress distributions were concentrated on the anterior side of the femoral neck. Compressive strain distribution in the femoral head and neck was concentrated in four areas: at the tip of the blade or lag screw, the anteroinferior side of the blade or lag screw near the fracture site, and the upper right and lower left near the junction of the blade or lag screw and nail. Thus, the distribution of both these stresses revealed that the femoral head fragment was prone to anterior and inferior displacement. Distribution of compressive strains revealed the direction of the stress exerted by the osteosynthetic implant on the bone. The same results were observed in all osteosynthetic implants;thus, the findings could lay the foundation for developing methods for placing osteosynthetic implants less prone to displacement and the osteosynthetic implants themselves. In particular, the study provides insight into the optimal treatment of CSFF. 展开更多
关键词 Finite Element Analysis Proximal Femur Fractures Intramedullary Fixation coronal Shear Fractures Femoral Neck
下载PDF
上一页 1 2 55 下一页 到第
使用帮助 返回顶部