检索结果-南通市图书馆

年龄20~30岁人群冠状动脉钙化预测:冠状动脉钙化研究

在线全文

学校读者我要写书评

暂无评论

中华高血压杂志 2020年第5期28卷 444-444页

作者：周卫(译) 叶鹏(校) Oseia AD Uddin SMI Dzayea O Achirica MC Dardari ZA Obisesan oh Kianoush S Mirbolouk M Orimoloye OA Shaw L Rumberger JA Berman D Rozanski A Miedema MD Budoff MJ Vasan RS Nasir K Blaha MJ 不详

该文旨在研究早期冠状动脉钙化(coronary artery calcium,CAC)的相关危险因素,以及CAC在20~30岁成年人中的潜在临床研究价值。方法:纳入CAC研究中基线年龄20~30岁的患者(n=373)作为研究对象,该研究为大型多中心队列研究,研究对象为年龄... 详细信息

该文旨在研究早期冠状动脉钙化(coronary artery calcium,CAC)的相关危险因素,以及CAC在20~30岁成年人中的潜在临床研究价值。方法:纳入CAC研究中基线年龄20~30岁的患者(n=373)作为研究对象,该研究为大型多中心队列研究,研究对象为年龄≥18岁无动脉粥样硬化性心血管病(atherosclerotic cardiovascular disease,ASCVD)的患者,应用CAC评分进行临床风险分层。

关键词：冠状动脉钙化动脉粥样硬化性心血管病风险分层 artery 基线年龄相关危险因素临床研究价值

一患眼肌麻痹、神经病变和帕金森综合征的家族中发现一种新的聚合酶γ突变

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（神经病学分册） 2005年第3期1卷 26-26页

作者： Mancuso M. Filosto M. oh S.J. DiMauro S. 王英鹏 4-420 Coll. of Phys. and Surgeons 630 West 168th St New Yor k NY United States Dr.

Background: Mutations in polymerase γcause progressive external ophthalmopleg ia and a variety of associated symptoms and signs, including neuropathy, ataxia, hypogonadism, hearing loss, muscle weakness, and psychiatric problems. Extrapyr amidal signs have been rarely described. Objective: To describe a family with a novel polymerase γ.mutation and autosomal dominant transmission of progressive external ophthalmoplegia, neuropathy, hypogonadism, and parkinsonism. Design: Ca se report. Patients: The proband, a 49 year old woman with incipient parkinson ism, and her 59 year old brother with overt parkinsonian features. Main Outcom e Measures: Mutation in the proband by sequencing the polymerase γ.gene and in affected relatives by restriction fragment length polymorphism analysis. Results : We found multiple mitochondrial DNA deletions in the probands muscle and a n ovel missense mutation in the polymerase γ.gene (A2492G) in the proband and in her affected siblings. Conclusion: Parkinsonism was a prominent clinical feature in this family with autosomal dominant ophthalmoplegia, multiple mitochondrial DNA deletions, and a novel mutation in the polymerase γgene.

关键词：帕金森综合征眼肌麻痹聚合酶锥体外系体征先证者性腺功能减退早期帕金森基因突变共济失调 DNA

Mineralogical and geochemical evidence for coupled bacterial uranium mineralization and hydrocarbon oxidation in the Shashagetai deposit,NW China

在线全文

学校读者我要写书评

暂无评论

Mineralogical and geochemical evidence for coupled bacterial...

上盂唇前后撕裂:多层CT关节成像诊断的准确度及阅片者间可信度

中国科学院地质与地球物理研究所2006学术年会

作者： Chunfang Cai~1,Hailiang Dong~2,Hongtao Li~1,Xinjian Xiao~3,Guanxi Ou~3, Chunming Zhang~4 1 Key Laboratory of Mineral Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences,P.O. Box 9825,Beitucheng Xilu No.19,Beijing 100029,P.R.China 2 Department of Geology,Miami University,Oxford,oh 45056,USA 3 Beijing Research Institute of Uranium Geology,Beijing 100029,P.R.of China 4 Department of Geochemistry,Yangtze University,Jingzhou,Hubei 434023,PR China

Unusual mineral structures have recently been found in a sandstone-hosted roll-type uranium deposit in the Middle Jurassic Zhiluo Formation in the Shashagetai deposit,the northern Ordos basin,NW *** structures possess a chemical composition and crystal structure characteristic of mineral coffinite[(USiO)](oh)],which occurs as nanoparticles with size ranging from 5 to *** structures are interpreted to be fossilized microorganisms,based on mineralogical biosignatures including morphology,size,occurrence of biogenic coffinite as nano-crystals,and biological elements such as *** intimate intergrowth of coffinite with secondary pyrite of bacterial origin,as defined by lowδS values,and calcite cements with petroleum-derived carbon supports its biogenic *** inclusions in the host sandstone are characterized by abundant n-alkanes,slightly increased Pr/nC and Ph/nC ratios,significant amounts of demethylated hopanes and tricyclic terpanes,and the existence of unresolved complex *** characteristics are interpreted to be a result of mixing of an earlier,heavily degraded oil with a later charged fresh oil;subsequently the oils were slightly *** lines of evidence lead to the proposal that the reduction of sulfate and oxidization of petroleum are likely synchronous with reduction of hexavalent[U(Ⅵ)]to tetravalent[U(Ⅳ)]uranium by sulfate-reducing bacteria(SRB).The discovery of a natural association of microorganism-like structures,a uranium mineral,and biodegraded petroleum has implications for uranium biomineralization and fossil fuel exploration.

关键词： uranium deposit anaerobic petroleum oxidation sulfate-reducing bacteria nanoparticle microfossil sulfur isotopes

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

国际医学放射学杂志 2011年第5期 478-478页

作者： Y.J.Kim J.A.Choi J.H.oh S.Ⅱ.Hwang 蔡兆诚 Departments of Radiology Seoul National University Bundang Hospital300 Gumi-dongBundang-guSeongnam-siGyeongi-do 463-707South Korea

目的评估多层CT关节成像对上盂唇前后(SLAP)损伤的诊断及分类的准确性与阅片者间的可信度。材料与方法本研究经机构审查委员会批准并获得知情同意。回顾性

关键词：盂唇关节运动器官 CT

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

紫岸斋

世界建筑导报 2020年第3期35卷 12-15页

作者：京津镇金元Ym 恩河公园塞尔吉奥·皮罗内(摄影) 金正恩(摄影) 无不详履露斋金孝晩建筑师事务所

这里位于龙仁市广九山山脉步道入口的绿化带,是风景秀丽的著名坡地,也是广九山开发的独家住宅区的一部分。房屋的规划首先考虑了主要起居空间(例如客厅)所面对的主要方向。最后,选择了朝向对面山区的布局。这些山区不会被开发,绿地会长... 详细信息

这里位于龙仁市广九山山脉步道入口的绿化带,是风景秀丽的著名坡地,也是广九山开发的独家住宅区的一部分。房屋的规划首先考虑了主要起居空间(例如客厅)所面对的主要方向。最后,选择了朝向对面山区的布局。这些山区不会被开发,绿地会长期存在。这种引入有吸引力的永恒景观的选择带来了西北方向的非环境效率问题,所以我们需要解决让阳光从南部和东部流入的光照问题。

关键词：住宅区步道环境效率绿化带西北方向起居空间

菌糠对污灌区不同作物种植土壤重金属铜和铬形态的影响

在线全文

学校读者我要写书评

暂无评论

广东农业科学 2018年第9期45卷 66-71页

作者：李丹洋董卿王効挙程红艳郝千萍常建宁黄菲山西农业大学资源环境学院山西太谷030801 日本埼玉环境科学国际中心

为了给菌糠改善土壤重金属污染提供理论参考,探究菌糠对污灌区种植不同作物的土壤中重金属铜和铬形态的影响,针对污灌区土壤,采用田间试验,对玉米、高粱、糯玉米3种作物基施菌糠后,在作物成熟期采集土壤样品,研究了重金属铜、铬总量及... 详细信息

为了给菌糠改善土壤重金属污染提供理论参考,探究菌糠对污灌区种植不同作物的土壤中重金属铜和铬形态的影响,针对污灌区土壤,采用田间试验,对玉米、高粱、糯玉米3种作物基施菌糠后,在作物成熟期采集土壤样品,研究了重金属铜、铬总量及不同形态的分布变化。结果表明:菌糠的施用增加了污灌区土壤中铜、铬总量的降低幅度,与不施菌糠相比,3种作物种植后土壤中的铜、铬总量都呈现减少趋势。在不施用菌糠土壤中,Cu含量减少率在3.17%~16.20%,Cr含量减少率在5.00%~15.40%;在施用菌糠的土壤中,Cu含量减少率在6.17%~18.60%,Cr含量减少率在8.94%~20.60%;菌糠的施用提升了碳酸盐结合态、有机结合态、残渣态铜和铬的减少率,除可交换态铜含量呈增加趋势外,其余各形态铜和铬均呈减少趋势。3种土壤中,种植玉米的土壤中铜、铬各个形态的含量减少率显著高于种植其他两种作物的土壤,这与土壤中铜、铬全量的减少率规律一致。除种植玉米的土壤中铁锰氧化物结合态铜的含量外,种植其他两种作物的土壤施加菌糠后,铜、铬各个形态含量的减少率均高于不施用菌糠土壤,说明施用菌糠可以促进重金属铜和铬碳酸盐结合态、有机结合态、残渣态的减少,降低土壤中的重金属含量。

关键词：菌糠玉米高粱糯玉米重金属形态

Mineralogical and geochemical evidence for coupled bacterial uranium mineralization and hydrocarbon oxidation in the Shashagetai deposit,NW China

在线全文

学校读者我要写书评

暂无评论

Mineralogical and geochemical evidence for coupled bacterial...

Disturbance Rejection in Iron and Steel Process:Problems and Current Solutions

中国科学院地质与地球物理研究所2007学术年会

作者： Chunfang Cai~(a,*),Hailiang Dong~b,Hongtao Li~a,Xinjian Xiao~c, Guanxi Ou~c,Chunming Zhang~d a Key Laboratory of Mineral Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences,P.O.Box 9825, Beitucheng Xilu No.19,Chaoyang District,Beijing 100029,PR China b Department of Geology,Miami University,Oxford,oh 45056,USA c Beijing Research Institute of Uranium Geology,Beijing 100029,PR China d Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University),Ministry of Education, Jingzhou,Hubei 434023,PR China

Unusual mineral structures have recently been found in a sandstone-hosted roll-type uranium deposit in the Middle Jurassic Zhiluo Formation in the Shashagetai deposit,the northern Ordos basin,NW *** structures possess a chemical composition and crystal structure characteristic of mineral coffinite[(USiO)(oh)],which occurs as nanoparticles with size ranging from 5 to 25 *** structures are interpreted to be fossilized microorganisms,based on mineralogical biosignatures including morphology,size,occurrence of biogenic coffinite as nano-crystals,and biological elements such as *** intimate intergrowth of coffinite with secondary pyrite of bacterial origin,as defined by lowδS values,and calcite cements with petroleum-derived carbon supports its biogenic *** inclusions in the host sandstone are characterized by abundant n-alkanes,slightly increased Pr/nC and Ph/nC ratios,significant amounts of demethylated hopanes and tricyclic terpanes,and the existence of unresolved complex *** characteristics are interpreted to be a result of mixing of an earlier,heavily degraded oil with a later charged fresh oil;subsequently the oils were slightly *** lines of evidence lead to the proposal that the reduction of sulfate and oxidization of petroleum are likely synchronous with reduction of hexavalent[U(Ⅵ)]to tetravalent[U(Ⅳ)]uranium by sulfate-reducing bacteria(SRB).The discovery of a natural association of microorganism-like structures,a uranium mineral,and biodegraded petroleum has implications for uranium biomineralization and fossil fuel exploration.

关键词： Uranium deposit Anaerobic petroleum oxidation Sulfate-reducing bacteria Nanoparticle Microfossil Sulfur isotopes

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Disturbance Rejection in Iron and Steel Process:Problems and...

动态增强MRI对子宫内膜癌肿瘤-肌层对比成像延迟的优化

第三十届中国控制会议

作者： WANG Lijun~(1,2),TONG Chaonan~(1,2),LI Qing~(1,2),YIN Yixin~(1,2),GAO Zhiqiang~3 1.School of Automation & Electrical Engineering,University of Science and Technology Beijing,Beijing 100083,P.R.China 2.Key Laboratory of Advanced Control of Iron and Steel Process(Ministry of Education),University of Science and Technology Beijing, Beijing 100083,P.R.China 3.Center for Advanced Control Technologies,Fenn College of Engineering,Cleveland State University,Cleveland,oh 44115,USA

＜正＞It is shown in this paper that the quality of control in iron and steel process,hinges upon how well various disturbances are *** of the disturbances and the current design solutions are presented,together with pending problems. In the evaluation of design options,Active Disturbance Rejection Control stands out as the most viable solution-in its practicality and the ability to handle both internal and external disturbances in one simple manner.

关键词： Iron and Steel Process Disturbance Rejection Large Time Delay Decoupling Uncertain

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

国际医学放射学杂志 2015年第1期 86-86页

作者： S.B.Park M.H.Moon C.K.Sung S.oh Y.H.Lee Department of Radiology SMG-SNU Boramae Medical Center Seoul National University College of Medicine

目的探讨动态增强MRI在子宫内膜癌的最佳延迟时间。方法本前瞻性单机构研究获得机构审查委员会的批准,并获得参与者知情同意。35例女性病人(年龄29;6

关键词：动态增强成像延迟 MRI 肌层子宫内膜癌