检索结果-南通市图书馆

2001—2011年青海省人间鼠疫流行病学分析

在线全文

学校读者我要写书评

暂无评论

中华地方病学杂志 2013年第5期32卷 520-522页

作者：崔百忠青海省地方病预防控制所鼠疫预防控制科西宁811602

目的分析总结2001—2011年青海省人间鼠疫疫情，为鼠疫防治措施提供科学依据。方法收集2001—2011年青海省人间鼠疫流行病学现场调查资料及人间鼠疫疫情中各个病例的病历资料，运用流行病学方法进行分析。人感染鼠疫病例按照《鼠疫诊断... 详细信息

目的分析总结2001—2011年青海省人间鼠疫疫情，为鼠疫防治措施提供科学依据。方法收集2001—2011年青海省人间鼠疫流行病学现场调查资料及人间鼠疫疫情中各个病例的病历资料，运用流行病学方法进行分析。人感染鼠疫病例按照《鼠疫诊断标准》（WS279—2008）进行判定。结果2001—2011年，青海省共发生人间鼠疫14起，发病38人，死亡17人，病死率为44．74％。病例发病地点分布于9个县12个乡；发病时间在5—10月，其中以9月和10月最多，为22例，占57．89％（22／38）；病例中有藏族牧民和汉族农民，占76-32％（29／38）和23．68％（9／38）；发病年龄在5～67岁，以20～45岁年龄段为主，占68．42％（26／38）；临床病型以重症鼠疫（肺鼠疫和败血型鼠疫）为主，首发病例的发病原因多由患者主动接触染疫动物引起。结论青海省鼠疫病例发生主要与人类主动接触鼠疫染疫动物有关，青海省人间鼠疫疫情有上升的趋势，鼠疫远距离传播的危险性明显加大。

关键词：鼠疫流行病学结果评价

青海省三江源地区3种生态型鼠疫耶尔森菌的基因多态性比较

在线全文

学校读者我要写书评

暂无评论

中国地方病学杂志 2008年第5期27卷 508-510页

作者：崔百忠青海省地方病预防控制所鼠疫预防控制科西宁811602

目的对青海省三江源地区及其毗邻的四川省石渠县分离的34株3种生态型（青海田鼠型、祁连山型、青藏高原型）鼠疫耶尔森菌进行基因多态性分析，比较不同生态型鼠疫菌之间的关系。方法用随机扩增多态性DNA（RAPD）技术，对34株不同生态型... 详细信息

目的对青海省三江源地区及其毗邻的四川省石渠县分离的34株3种生态型（青海田鼠型、祁连山型、青藏高原型）鼠疫耶尔森菌进行基因多态性分析，比较不同生态型鼠疫菌之间的关系。方法用随机扩增多态性DNA（RAPD）技术，对34株不同生态型鼠疫菌进行扩增，然后进行琼脂糖凝胶电泳检测。结果扩增产物在凝胶电泳上显示的条带，除3株菌不同外，其余31株菌无差异。结论三江源地区青海田鼠型、祁连山型、青藏高原型鼠疫菌在遗传学上属于同源。

关键词：随机扩增多态DNA技术耶尔森菌,鼠疫生态型

民族传统体育项目铸牢中华民族共同体意识的三重向度

在线全文

学校读者我要写书评

暂无评论

贵州民族研究 2023年第4期44卷 156-161页

作者：白中英西南财经大学马克思主义学院四川成都611130

民族传统体育项目作为一项特殊的身体实践活动,是中华各民族之间社会交往和风俗习惯的缩影,拥有深厚的历史记忆、鲜明的纪念仪式和独特的叙事话语特征,在铸牢中华民族共同体意识方面发挥着重要的作用。文章围绕民族传统体育项目的三重... 详细信息

民族传统体育项目作为一项特殊的身体实践活动,是中华各民族之间社会交往和风俗习惯的缩影,拥有深厚的历史记忆、鲜明的纪念仪式和独特的叙事话语特征,在铸牢中华民族共同体意识方面发挥着重要的作用。文章围绕民族传统体育项目的三重直观表征,探究其绵延赓续过程中熔铸中华民族共同体意识的身份认同、族群认同、国家认同的价值逻辑,借此剖析当前民族传统体育项目面临的记忆多元与身份一体、传统仪式与现代族群、外来话语与国家叙事之间的现实矛盾困境,进而从树立典型传统体育项目、发展大型民族体育赛事、讲好民族传统体育故事三个方面提出铸牢中华民族共同体意识的提升策略,激发民族传统体育项目的现代活力。

关键词：民族传统体育项目中华民族共同体意识文化记忆纪念仪式叙事话语

在线全文

学校读者我要写书评

暂无评论

谈创客教育的背景、本质、形式与支持系统

现代教育技术 2016年第6期26卷 13-19页

作者：钟柏昌南京师范大学基础教育人才培养模式协同创新中心江苏南京210097

创客教育是以造物的形式培养学生综合实践能力的工程教育。文章简要回顾了创客教育产生和发展的历史背景和本质内涵,提出开展创客教育需要努力做到三个"实现":(1)利用各种科技活动开展创客教育,实现多层次渗透;(2)利用各种空间开展创客... 详细信息

创客教育是以造物的形式培养学生综合实践能力的工程教育。文章简要回顾了创客教育产生和发展的历史背景和本质内涵,提出开展创客教育需要努力做到三个"实现":(1)利用各种科技活动开展创客教育,实现多层次渗透;(2)利用各种空间开展创客教育,实现全方位开展;(3)利用各种师资开展创客教育,实现宽领域施教。文章还认为,普及创客教育需要提供系统的支持:(1)推出创客教育的核心素养、质量评价和条件建设标准;(2)做好配套先修课程的建设;(3)开展教师培训,筹建区域创客教育联盟;(4)开展不同形式的评价活动;(5)开源节流,因地制宜地建设创客空间。

关键词：创客创客空间创客教育 STEM教育

非均匀磁场和杂质磁场对自旋1系统量子关联的影响

在线全文

学校读者我要写书评

暂无评论

物理学报 2015年第3期64卷 184-192页

作者：秦猛李延标白忠南京大学物理学院南京210093 解放军理工大学理学院南京211101

通过负值度和测量诱导的扰动,研究了非均匀磁场和杂质磁场对自旋为1的Heisenberg系统量子关联的影响.研究发现非均匀磁场的增加会降低纠缠,但也可用来产生纠缠,并且会提高临界非线性作用Kc的值,测量诱导的扰动的临界磁场要高于负值度的... 详细信息

通过负值度和测量诱导的扰动,研究了非均匀磁场和杂质磁场对自旋为1的Heisenberg系统量子关联的影响.研究发现非均匀磁场的增加会降低纠缠,但也可用来产生纠缠,并且会提高临界非线性作用Kc的值,测量诱导的扰动的临界磁场要高于负值度的临界磁场,而且测量诱导的扰动不会随着非线性作用|K|的减小而消失,它能全面反映量子关联的存在.研究还发现,不同杂质磁场对测量诱导的扰动的影响彼此间无交叉.杂质磁场下,相互作用|J|必须小于非线性作用|K|才会有纠缠存在,但是测量诱导的扰动却可以在相互作用|J|大于非线性作用|K|时依然存在,|J|与|K|相同时只是测量诱导的扰动的最小取值点.此外,系统粒子数目对量子关联也具有重要影响.

关键词：量子关联自旋1系统负值度非均匀磁场和杂质磁场

Correlation of serum Ang-2 level with neurohumor indexes and myocardial remodeling indexes in patients with chronic heart failure

在线全文

学校读者我要写书评

暂无评论

Journal of Hainan Medical University 2018年第8期24卷 14-17页

作者： Cheng-Hu Shi zhong-Mei bai Feng-Tao Hu Cardiology Department the People's Hospital of Huangmei Hubei ProvinceHuangmeiHubei Province435500China Clinical Laboratory Department the People's Hospital of Huangmei Hubei ProvinceHuangmeiHubei Province435500China

Objective:To study the correlation of serum angiogenin 2 (Ang-2) level with neurohumor indexes and myocardial remodeling indexes in patients with chronic heart ***:The patients with chronic heart failure who were treated in the People's Hospital of Huangmei between March 2015 and October 2017 were selected and divided into NYHA I-II group and NYHA III-IV group according to cardiac function classification;healthy subjects who received physical examination during the same period were selected as the control group. The levels of Ang-2, neurohumor indexes and myocardial remodeling indexes in serum were determined. Results: Serum Ang-2, NT-proBNP, Copeptin, ET-1, AT-II, ALD, FGF23, TGFβ1, Gal-3, PICP and ICTP levels of NYHA I-II group and NYHA III-IV group were significantly higher than those of control group whereas TIMP4 levels were significantly lower than that of control group;serum Ang-2, NT-proBNP, Copeptin, ET-1, AT-II, ALD, FGF23, TGFβ1, Gal-3, PICP and ICTP levels of NYHA III-IV group were significantly higher than those of NYHA I-II group whereas TIMP4 level was significantly lower than that of NYHA I-II group. Serum NT-proBNP, Copeptin, ET-1, AT-II, ALD, FGF23, TGFβ1, Gal-3, PICP and ICTP levels in chronic heart failure patients with high Ang-2 level were significantly higher than those in chronic heart failure patients with low Ang-2 level whereas TIMP4 level was significantly lower than that in chronic heart failure patients with low Ang-2 ***:The increase of Ang-2 in patients with chronic heart failure is related to neurohumoral disorder and myocardial remodeling aggravation.

关键词： Chronic heart failure Angiogenin-2 Neurohumor Myocardial remodeling

Expression of TLR4 in peripheral blood mononuclear cells with myocardial injury and inflammatory stress response in patients with acute myocardial infarction

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

Journal of Hainan Medical University 2018年第9期24卷 5-8页

作者： Cheng-Hu Shi zhong-Mei bai Feng-Tao Hu Cardiology Department the Peopleˇs Hospital of Huangmei Hubei ProvinceHuangmeiHubei Province435500China Clinical Laboratory Department the Peopleˇs Hospital of Huangmei Hubei ProvinceHuangmeiHubei Province435500China

Objective:To study the expression of TLR4 in peripheral blood mononuclear cells with myocardial injury and inflammatory stress response in patients with acute myocardial ***:Patients who were diagnosed with acute myocardial infarction, unstable angina pectoris and stable angina pectoris in the People's Hospital of Huangmei between June 2014 and August 2017 were enrolled in the AMI group, UAP group and SAP group of the study respectively, and the volunteers who received physical examination in the People's Hospital of Huangmei during the same period were selected as the control group. The expression levels of TLR4 and stress indexes in peripheral blood mononuclear cells as well as the levels of myocardial injury indexes, inflammation indexes and stress indexes in serum were ***:TLR4, Nrf2, NQO-1 andγ-GCS mRNA expression in peripheral blood mononuclear cells as well as CK, LDH, CK-MB, cTnT, MMP9, HMGB1, sVCAM1, IFN-γ, IL-17, MDA and AOPP levels in serum of AMI group were higher than those of UAP group, SAP group and control group;TLR4 mRNA expression in peripheral blood mononuclear cells of patients with AMI was positively correlated with CK, LDH, CK-MB, cTnT, MMP9, HMGB1, sVCAM1, IFN-γ, IL-17, MDA and AOPP levels in serum as well as Nrf2, NQO-1 andγ-GCS mRNA expression in peripheral ***:The high expression of TLR4 in peripheral blood mononuclear cells of patients with acute myocardial infarction can aggravate the myocardial injury and promote the activation of inflammatory stress response.

关键词： Acute myocardial infarction Toll-like receptor 4 Inflammatory response Oxidative stress response

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

动态疫苗接种的入侵检测方法

北京邮电大学学报 2014年第S1期37卷 77-82页

作者：张玲白中英谢康北京邮电大学计算机学院北京100876 郑州轻工业学院郑州450000 山东大学济南250100

提出了一种基于动态疫苗接种的入侵检测方法.设计了一种基于粗糙集方法的抗体生成方案和一种基于属性重要度的疫苗接种策略.采用粗糙集方法是为了保证抗体的优良性,同时提高检测的速度;使用疫苗接种策略能获得适应度高的疫苗,同时使得... 详细信息

提出了一种基于动态疫苗接种的入侵检测方法.设计了一种基于粗糙集方法的抗体生成方案和一种基于属性重要度的疫苗接种策略.采用粗糙集方法是为了保证抗体的优良性,同时提高检测的速度;使用疫苗接种策略能获得适应度高的疫苗,同时使得检测算法具有较高的收敛速度.最后通过模拟实验,验证了模型的可行性及有效性.

关键词：入侵检测粗糙集人工免疫疫苗

Three-dimensional finite element analysis of weakened roots restored with different cements in combination with titanium alloy posts

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2006年第4期119卷 305-311页

作者： LI Li-li WANG zhong-yi bai zhong-cheng MAO Yong GAO Bo XIN Hai-tao ZHOU Bing ZHANG Yong LIU Bing Department of Prosthetics Stomatological Hospital Affiliated to Fourth Military Medical University Xi＇an 710032 China Department of Stomatology 306th Hospital of PLA Beijing 100101 China Department of Mechanical Engineering Xi＇an JiaoTong University Xi＇an 710000 China

Background It is very difficult and relatively unpredictable to preserve and restore severely weakened pulpless roots. To provide much needed benefit basis for clinical practice, this study was carried out to analyze the stress distribution in weakened roots restored with different cements in combination with titanium alloy posts. Finite element analysis （FEA） was employed in the study. Methods A pseudo three-dimensional model of a maxillary central incisor with flared root canal, theoretically restored with titanium alloy posts in combination with different cements, was established. The analysis was performed by use of ANSYS software. The tooth was assumed to be isotropic, homogenous and elastic. A load of 100 N at an angle of 45° to the longitudinal axis was applied at the palatal surface of the crown. The distributions of stresses in weakened roots filled with cements of different elastic modulus were analyzed by the three-dimensional FEA model. Results Several stress trends were observed when the stress cloud atlas obtained in the study was analyzed. With the increase of the elastic modulus of cements from 1.8 GPa to 22.4 GPa, the stress values in dentin decreased from 39.58 MPa to 31.43 MPa and from 24.51 MPa to 20.76 MPa （respectively, for maximum principle stress values and Von Mises stress values）. When Panavia F and zinc phosphate cement were used, the stress peak values in dentin were very small with no significant difference observed, and the Von Mises stress values were 20.87 MPa and 20.76 MPa respectively. On the other hand, maximum principle stress value and Von Mises stress value in cement layer increased with the increase of the elastic modulus of cements. Conclusions The result of this study demonstrated that elastic modulus was indeed one of the important parameters to evaluate property of the cements. Our three-dimensional FEA model study also found that the cement with elastic modulus similar to that of dentin could reinforce weakened root and re

关键词： weakened root cements finite element analysis stress distribution