检索结果-南通市图书馆

让肾脏健康人人可享,处处可及——从预防到诊治

在线全文

学校读者我要写书评

暂无评论

肾脏病与透析肾移植杂志 2020年第1期29卷 1-7页

作者： philip kam tao Guillermo Garcia Garcia Siu Fai Lui Sharon Andreoli Winston Wing Shing Fung Anne Hradsky Latha Kumaraswami Vassilios liakopoulos Ziyoda Rakhimova Gamal Saadi Luisa Strani Ifeoma Ulasi kamyar Kalantar Zadeh 无 Department of Medicine and Therapeutics Carol&Richard Yu PD Research CentrePrince of Wales HospitalChinese University of Hong KongHong Kong Nephrology Service Hospital Civil de Guadalajara Fray Antonio AlcaldeUniversity of Guadalajara Health Sciences CenterGuadalajaraJaliscoMexico Division of Health System Policy and ManagementJockey Club School of Public Health and Primary CareThe Chinese University of Hong KongHong Kong James Whitcomb Riley Hospital for Children Indiana University School of MedicineIndianapolisIndianaUSA World Kidney Day Office BrusselsBelgium Tanker Foundation ChennaiIndia Division of Nephrology and Hypertension 1st Department of Internal MedicineAHEPA HospitalAristotle University of ThessalonikiThessalonikiGreece Nephrology Unit Department of Internal MedicineFaculty of MedicineCairo UniversityGizaEgypt Renal Unit Department of MedicineCollege of MedicineUniversity of NigeriaItuku OzallaEnuguNigeria Division of Nephrology and Hypertension and Kidney Transplantation University of California Irvine School of MedicineOrangeCaliforniaUSA the World Kidney Day Steering Committee

Around 850 million people currently are affected by different types of kidney *** to 1 in 10 adults worldwide has chronic kidney disease(CKD),which is invariably irreversible and mostly *** global burden of CKD is increasing,and CKD is projected to become the fifth most common cause of years of life lost globally by *** CKD remains uncontrolled and if the affected person survives the ravages of cardiovascular and other complications of the disease,CKD progresses to endstage kidney disease,where life cannot be sustained without dialysis therapy or kidney ***,CKD is a major cause of catastrophic health expenditure.

关键词： awareness detection kidney diseases prevention

An Improved Method on the Recognition of Modulation Types of Pulse Compression Signals

在线全文

学校读者我要写书评

暂无评论

An Improved Method on the Recognition of Modulation Types of...

The 2011 Fourth International Symposium on Knowledge Acquisition and Modeling（kam 2011）

作者： Chen tao Jia Zongsheng li li Si xicai College of information and communications engineering Harbin Engineering University

The recognition algorithm of pulse compression radar signals based on adaptive resemblance coefficient（RC） is presented in this paper. An improved algorithm of the adaptive rectangle and triangle is proposed on the basis of the pulse compression radar signal spectrums, and then joint feature distribution is constructed. Abundant simulations prove the distribution effective. Moreover, 3 times covariance is proposed as the decision rule, which is evaluated statistically. The decision standard is given for the recognition of modulation types of following signals.

关键词： resemblance coefficient modulation type pulse compression 3 times covariance

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

不同含量砾石嵌套对红壤入渗特性的影响

节水灌溉 2022年第5期 1-6页

作者：叶瀛韬李占玲王蕙中国地质大学(北京)水资源与环境学院北京100083 浙江水利水电学院水利与环境工程学院杭州310018

土壤中砾石会不同程度地改变土壤水分运移过程,对土壤水文过程产生重要影响。以曹娥江上游省级水土流失重点治理区内红壤为研究对象,运用室内垂直一维定水头土壤入渗实验,研究不同含量(0%、10%、20%、30%)砾石嵌套条件下红壤水分的入渗... 详细信息

土壤中砾石会不同程度地改变土壤水分运移过程,对土壤水文过程产生重要影响。以曹娥江上游省级水土流失重点治理区内红壤为研究对象,运用室内垂直一维定水头土壤入渗实验,研究不同含量(0%、10%、20%、30%)砾石嵌套条件下红壤水分的入渗特征,并利用Kostiakov、Horton、philip模型对入渗过程进行拟合。结果表明:土壤初始入渗率、稳定入渗率、平均入渗率均随砾石含量的增加而增加,但并非随砾石含量的增加而持续上升;嵌套砾石含量为20%、30%的红壤初始入渗率、稳定入渗率、平均入渗率并未表现出显著性差异(Pphilip模型能够更好地反映砾石含量为20%嵌套条件下的红壤入渗过程。研究一方面可丰富有砾石嵌套的红壤水分入渗机制,另一方面,也为土壤侵蚀地区水土流失预防与综合治理、加强生态修复提供科学依据。

关键词：砾石红壤入渗入渗模型

Elevated Plasma Tissue-type Plasminogen Activator (t-PA) and Soluble Throm-bomodulin in Patients Suffering From Severe Acute Respiratory Syndrome (SARS) as a Possible Index for Prognosis and Treatment Strategy

在线全文

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2005年第4期18卷 260-264页

作者： ZHONG-HUA liU RAN WEI YA-PING WU TON liSMAN ZENG-XIAN WANG JI-JU HAN DAO-liNG REN BIN CHEN ZUO-li XIA BIAO CHEN ZHEN ZHU YAN ZHANG XING CUI HAI-tao HU philip G. DE GROOT WEN-BO XU School of Medicine Xi＇an Jiaotong University （SMXJU） Xi＇an 710061 Shaanxi China Basic Medical Science Institute Taishan Medical College （TMC） Tai＇ an China Haematology University Medical Center Utrecht （UMCU） the Netherlands Xuanwu Hospital of Capital University of Medical Sciences BeijingChina National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing China College of Medicine Shandong University Jinan China

To detect the presence of endothelial injury in patients with severe acute respiratory syndrome （SARS） via enhanced levels of tissue-type plasminogen activator （t-PA） and soluble thrombomodulin （sTM）. Methods Case patients were from Xuanwu Hospital （Capital University of Medical Sciences, Beijing, China）, and all of them met clinical criteria for SARS. Healthy controls were some of the hospital employees. Endothelial injury bio-markers tPA and sTM were detected by commercial EliSA-methods. Results Classic plasma markers of endothelial injury, tPA and sTM significantly elevated in SARS patients in comparison to controls [t-PA： 1.48±0.16 nmol/L versus 0.25±0.03 nmol/L （P〈0.0001）, and sTM： 0.26±0.06 nmol/L versus 0.14±0.02 nmol/L （P〈0.05）]. The only patient who died had extremely high levels of these endothelial injury markers （t-PA： 2.77 nmol/L and sTM： 1.01 nmol/L）. The likelihood ratio analysis indicated the excellent discriminating power for SARS at the optimal cut-point of 0.49 nmol/L for tPA and 0.20 nmol/L for sTM, respectively. Significant numerical correlations were found among these endothelial injury markers in SARS patients. The numerical coefficient of correlation Pearson r between t-PA and sTM was 0.5867 （P〈0.05）. Conclusion Increased plasma concentrations of tPA and sTM in patients with SARS suggest the possibility of endothelial injury. SARS patients might need anticoagulant therapy or fibrinolytic therapy in order to reverse intraalveolar coagulation, microthrombi formation, alveolar and interstitial fibrin deposition. It may not only provide a useful treatment and prognostic index but also allow a further understanding of the pathological condition of the disease.

关键词： Severe acute respiratory syndrome (SARS) Tissue-type plasminogen activator (t-PA) Soluble thrombomodulin(sTM) SARS-coronavirus Bio-markers Endothelial injury

Echocardiographic evaluation of association between pulmonary hypertension and right ventricle dysfunction in patients with severe rheumatic mitral stenosis

在线全文

学校读者我要写书评

暂无评论

Echocardiographic evaluation of association between pulmonar...

Operational research capacity building through the Structured Operational Research Training Initiative(SORT-IT)in China:implementation,outcomes and challenges

中国超声医学工程学会第十四届全国超声心动图学术会议

作者： lingyun Fang Jingjing liu Xingfang Wang ling li Mingxing Xie tao Wang Department of Ultrasound Union HospitalTongji Medical CollegeHuazhong University of Science and Technology Penn Cardiovascular Institute University of Pennsylvania

Background:Mitral stenosis(MS) is the predominant form of valve involvement in rheumatic disease and still very commonin *** MS often causes pulmonary hypertension(PAH) and consequently leads to right ventricle(RV) *** dysfunction significantly affects clinic outcome but less is known about the relation between pulmonary hypertension and RV dysfunction in case with rheumatic *** study aims to assess RV function in patients with pure severe rheumatic MS stenosis with/without PAH using conventional and3 D strain echocardiography to determine if RV strain as parameter of RV function is correlated with ***:Forty patients between 2014-2016 referred for management of pure severe rheumatic mitral valve stenosis(mitral valve area≤1.5 cm,stage D) were included in the *** groups were formed based on pulmonary vascular resistance,1.6 W2.5 W(group III,n=21).Age-matched healthy subjects with normal standard echocardiograms and good quality images were selectedas controls(group I,n=20).RV function were made according to the recommendations of the American Society of Echocardiography using commercially available hardware and software(philip EPIQ 7).RV function indices include RV ejection fraction(EF),fractional area change(FAC),Tricuspid annular plane systolic excursion(TAPSE) and myocardial performance index(Tei index).3 D global longitudinal strain(GLS)of the RV free wall and interventricular septum were measured using 3 D speckle-tracking ***:Compared to healthy controls,RV EF were decreased in both group II and III,but failed to achieve statistic significant Compared to group I and group II,RVFAC(43.18±3.10 vs 32.34±5.0,p=0.000)and TAPSE(41.35+4.60 vs 32.34±5.0,p=0.000)was significantly decreased in group *** significant difference in TAPSE was found between group I and II(21.64±1.98 vs20.39±2.66,p=0.068).However,Tei index were significantly higher in among three ***(freewa

关键词：

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

Infectious Diseases of Poverty 2021年第3期10卷 121-121页

作者： Ning Feng Jeffrey Karl Edwards philip Odhiambo Owiti Guo-Min Zhang Zulma Vanessa Rueda Vallejo Katrina Hann Shui-Sen Zhou Myo Minn Oo Elizabeth Marie Geoffroy Chao Ma tao li Jun Feng Yi Zhang Xiao-Ping Dong Center for Global Public Health Chinese Center for Disease Control and PreventionBeijingChina 不详

Background:Chinese Center for Disease Control and Prevention(China CDC)introduced the Structured Operational Research Training Initiative(SORT IT)into China to build a special capacity and equip public health professionals with an effective tool to support developing countries in strengthening their operational *** paper aims to investigate and analyze the implementation,outcomes and challenges of the first cycle of SORT IT in China.

关键词： Operational research Capacity building Disease control program

羧甲基纤维素钠对壤砂土水分运动及水力参数的影响

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

土壤学报 2022年第5期59卷 1349-1358页

作者：单鱼洋马晨光王全九李晓菊陶汪海张继红苏李君曹玲西安理工大学省部共建西北旱区生态水利国家重点实验室西安710048 陕西沣西新城投资发展有限公司西安710000

科学使用羧甲基纤维素钠(CMC)实现保水控盐对于滨海壤砂盐碱土改良具有重要意义,而明晰CMC对滨海壤砂土水分运动规律的影响是科学使用CMC的重要基础。为研究施加CMC滨海壤砂土水分运动规律,本文通过开展一维垂直土柱积水入渗试验,探索不... 详细信息

科学使用羧甲基纤维素钠(CMC)实现保水控盐对于滨海壤砂盐碱土改良具有重要意义,而明晰CMC对滨海壤砂土水分运动规律的影响是科学使用CMC的重要基础。为研究施加CMC滨海壤砂土水分运动规律,本文通过开展一维垂直土柱积水入渗试验,探索不同CMC施量(0、0.1、0.2、0.4、0.6 g·kg^(–1))对壤砂土入渗特性、水分分布和土壤水力参数的影响。结果表明,施用CMC土壤的最终累积入渗量增加了4.90%~15.17%、达到预设湿润锋深度的入渗时间增加了61.90%~604.73%;philip入渗模型参数吸渗率S和Green-Ampt模型参数K_(s)S_(f)均随CMC施量的增加而减少,吸渗率S和平均土壤水扩散率与CMC施量之间的数学关系分别可用二次多项式和指数函数来表示;CMC增强了土壤的持水能力,土壤剖面含水量提高了0.72%~3.74%;CMC通过改变土壤结构影响了土壤水力参数,滞留含水率θ_(r)、饱和含水率θ_(s)及进气吸力倒数α均与CMC施量呈正相关关系,而与饱和导水率K_(s)和形状系数n成反比关系。通过对变异系数CV的分析发现,CMC对饱和导水率K_(s)和进气吸力倒数α影响表现为中等差异,对滞留含水率θ_(r)、饱和含水率θ_(s)和形状系数n表现为弱差异。研究结果揭示了CMC对滨海壤砂土减渗保水的内在机理,为滨海盐碱地的改良提供了理论参考。

关键词：羧甲基纤维素钠土壤入渗水分分布水力参数

在线全文

学校读者我要写书评

暂无评论

网络课程学习的参与度研究

教育教学论坛 2018年第17期 3-5页

作者：李光旭肖志涛吴骏 philip O.Ogunbona 王雯天津工业大学电子与信息工程学院天津300387 伍伦贡大学计算机科学与软件工程学院

专业课程的全英文授课常因阅读量较大、专业词汇难记而使得学生对课程学习的参与度低,学习效果不佳。本研究探索了利用互联网讨论组功能以及英文专业网站论坛来提高学生学习参与度的方法,同时利用Archer提出的"反思性"模型来研究学生参... 详细信息

专业课程的全英文授课常因阅读量较大、专业词汇难记而使得学生对课程学习的参与度低,学习效果不佳。本研究探索了利用互联网讨论组功能以及英文专业网站论坛来提高学生学习参与度的方法,同时利用Archer提出的"反思性"模型来研究学生参与教学活动的一系列反思模式。通过"讨论内容的统计分析"和"与参与者面谈"的方式,我们考察并提高了网络辅助学习环境中学生对全英文专业课程学习的参与效果。

关键词：反思性模型学习参与度全英文授课网络课程辅助

2195铝锂合金板材高速拉伸力学特性和变形机理

在线全文

学校读者我要写书评

暂无评论

稀有金属材料与工程 2022年第4期51卷 1283-1292页

作者：徐勇尹阔夏亮亮陈帅峰门向南邓涛王煜张士宏中国科学院金属研究所师昌绪先进材料创新中心辽宁沈阳110016 华北理工大学冶金与能源学院河北唐山063210 航空工业成都飞机工业有限责任公司四川成都610092 上海航天设备制造总厂有限公司上海200245

为探究新淬火态2195铝锂合金高应变速率拉伸的力学性能和变形机理,采用分离式Hopkinson拉杆装置进行高应变速率拉伸实验,应变速率范围为1000~4500s^(-1),并通过EBSD技术分析不同应变速率拉伸下合金的织构类型和微观组织演变规律。结果表... 详细信息

为探究新淬火态2195铝锂合金高应变速率拉伸的力学性能和变形机理,采用分离式Hopkinson拉杆装置进行高应变速率拉伸实验,应变速率范围为1000~4500s^(-1),并通过EBSD技术分析不同应变速率拉伸下合金的织构类型和微观组织演变规律。结果表明:随应变速率的增大,合金的强度和延伸率同步上升。当应变速率达到4200 s^(-1)时,抗拉强度和延伸率分别达到398MPa和63%,相对于准静态拉伸,延伸率显著提高。由EBSD结果分析可知,随应变速率的增大,小角度晶界占比上升、不同应变速率下拉伸的平均取向差(kam)均值增大,Goss织构和S织构强度和体积分数上升。同时发现高应变速率拉伸下不仅软取向晶粒的塑性变形更加充分,而且可以启动更多的硬取向晶粒协调变形,进而揭示了高应变速率拉伸下的变形机理。

关键词：铝锂合金力学性能高应变速率织构