Evaluation of cooling performance and characteristics of air-distribution in a pad and fan cooling greenhouse

Thesis (Ph. D. in Agricultural Science)--University of Tsukuba, (A), no. 5034, 2009.3.25Includes bibliographical references (leaves 136-146

《Incoterms2010》的变化和使用建议

2010年9月27日,国际商会在巴黎召开国际贸易术语解释通则2010全球发布会,正式推出其完成修订的国际贸易术语2010。这标志着被经贸界使用了近十年的国际贸易术语即将被新版本所取代。新版本已于2011年1月1日正式生效

福州评话中“一人多角”表演形式探究

作为传统曲艺的门类之一,福州评话在发展和传承的过程中始终保留着"一人多角"的表演形式。本文旨在通过对福州评话的历史沿革、艺术本体以及乐器道具三方面内容的分析,以《人的音乐性》一书中有关"文化创造的来源是从社会合作和彼此关爱中而产生的意识"的知识概念作为辅助研究方法,来探究"一人多角"表现形式在传统曲艺中对"人"所产生的独特作用及其存在的意义

陕西省87株耐药结核分枝杆菌寡核苷酸基因分型和耐药性分析

目的对陕西87例耐药结核分枝杆菌进行分型研究,了解不同基因型在陕西的流行情况及耐药相关性。方法收集陕西省结核分枝杆菌耐药菌株87株,采用Spoligotyping方法对结核分枝杆菌临床分离株进行基因分型。结果 87株耐药结核分枝杆菌中北京家族占86.21%(75/87),非北京家族占13.79%(12/87);非北京基因型中,T家族(T1、T2、T2-3、T3)占9.20%(8/87),Manu家族占1.15%(1/87),新发现基因型占3.45%(3/87)。北京家族和非北京家族的单耐药、多耐药、耐多药、其他类型耐药比率分别为38.67%(29/75)、13.33%(10/75)、42.67%(32/75)、5.33%(4/75)和66.67%(6/9)、11.11%(1/9)、22.22%(2/9)、0.00(0/3),差异均无统计学意义(P>0.05)。结论陕西省结核分枝杆菌呈基因多态性,其主要流行基因型为北京家族;北京家族和非北京家族的耐药性差异无统计学意义。陕西省社会发展科技攻关项目(No.2016SF-272

小扭口藓(Barbula indica)芽胞发育特征的实验研究

在光照培养箱中人工对照培养小扭口藓(Barbulaindica(Hook. )Spreng)的芽胞,显微镜下观察并记录其发育成配子体的全过程。结果表明:小扭口藓芽胞在3 ~4d即可萌发; 10d左右开始分化出绿丝体、轴丝体及假根; 18d,轴丝体上的侧枝顶端细胞以分生缢割的方式产生单细胞或多细胞芽胞; 40d,轴丝体上开始出现配子体原始细胞;之后,配子体原始细胞发育成桑椹状的幼小配子体。还对芽胞形态发育、生理生态及配子体发生过程的特点进行了分析和讨论。，CN 23-1480/

Artificial local magnetic field inhomogeneity enhances T2 relaxivity

磁性探针作为分子影像技术中的磁共振成像（MRI）造影剂在医学诊断中发挥着重要作用。为满足实际诊断中的准确性和精确性要求，科研工作者们长期致力于发展高性能的MRI造影剂以降低高剂量的使用带来的潜在风险。该文章指出了探针聚集体中局域磁场不均匀性是影响T2弛豫效能的关键因素。该文章首次利用磁场不均匀性因素阐明了单个探针和它们聚集体的MRI造影剂之间的相互关系，将可能成为弥补探针聚集体的造影剂理论的空白，并为发展新型高效的MRI造影剂提供重要参考。 该论文共同第一作者为博士后周子健和博士生田蕊，通讯作者为陈小元教授和聂立铭博士，部分工作得到我校物理学系王瑞方教授和化学化工学院高锦豪教授的支持。【Abstract】Clustering of magnetic nanoparticles (MNPs) is perhaps the most effective, yet intriguing strategy to enhance T2 relaxivity in magnetic resonance imaging (MRI). However, the underlying mechanism is still not fully understood and the attempts to generalize the classic outersphere theory from single particles to clusters have been found to be inadequate. Here we show that clustering of MNPs enhances local field inhomogeneity due to reduced field symmetry, which can be further elevated by artificially involving iron oxide NPs with heterogeneous geometries in terms of size and shape. The r2 values of iron oxide clusters and Landau–Lifshitz–Gilbert simulations confirmed our hypothesis, indicating that solving magnetic field inhomogeneity may become a powerful way to build correlation between magnetization and T2 relaxivity of MNPs, especially magnetic clusters. This study provides a simple yet distinct mechanism to interpret T2 relaxivity of MNPs, which is crucial to the design of high-performance MRI contrast agents.This work was supported by the National Science Foundation of China (81571744 and 81601489), the National Basic Research Program of China (863 Program 2015AA020502), the Fundamental Research Funds for the Central Universities (20720170065), the Science Foundation of Fujian Province (No. 2014Y2004), and by the Intramural Research Program (IRP), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH). 研究工作得到了国家自然科学基金委、国家高技术研究发展计划863项目、福建省重大研发平台项目和美国NIH Intramural Research Program的资助

Artificial local magnetic field inhomogeneity enhances T2 relaxivity

磁性探针作为分子影像技术中的磁共振成像（MRI）造影剂在医学诊断中发挥着重要作用。为满足实际诊断中的准确性和精确性要求，科研工作者们长期致力于发展高性能的MRI造影剂以降低高剂量的使用带来的潜在风险。该文章指出了探针聚集体中局域磁场不均匀性是影响T2弛豫效能的关键因素。该文章首次利用磁场不均匀性因素阐明了单个探针和它们聚集体的MRI造影剂之间的相互关系，将可能成为弥补探针聚集体的造影剂理论的空白，并为发展新型高效的MRI造影剂提供重要参考。 该论文共同第一作者为博士后周子健和博士生田蕊，通讯作者为陈小元教授和聂立铭博士，部分工作得到我校物理学系王瑞方教授和化学化工学院高锦豪教授的支持。【Abstract】Clustering of magnetic nanoparticles (MNPs) is perhaps the most effective, yet intriguing strategy to enhance T2 relaxivity in magnetic resonance imaging (MRI). However, the underlying mechanism is still not fully understood and the attempts to generalize the classic outersphere theory from single particles to clusters have been found to be inadequate. Here we show that clustering of MNPs enhances local field inhomogeneity due to reduced field symmetry, which can be further elevated by artificially involving iron oxide NPs with heterogeneous geometries in terms of size and shape. The r2 values of iron oxide clusters and Landau–Lifshitz–Gilbert simulations confirmed our hypothesis, indicating that solving magnetic field inhomogeneity may become a powerful way to build correlation between magnetization and T2 relaxivity of MNPs, especially magnetic clusters. This study provides a simple yet distinct mechanism to interpret T2 relaxivity of MNPs, which is crucial to the design of high-performance MRI contrast agents.This work was supported by the National Science Foundation of China (81571744 and 81601489), the National Basic Research Program of China (863 Program 2015AA020502), the Fundamental Research Funds for the Central Universities (20720170065), the Science Foundation of Fujian Province (No. 2014Y2004), and by the Intramural Research Program (IRP), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH). 研究工作得到了国家自然科学基金委、国家高技术研究发展计划863项目、福建省重大研发平台项目和美国NIH Intramural Research Program的资助

Challenge by Head Transplant

范瑞平：诸位好!受《中国医学伦理学》杂志王明旭主编所托,组织一篇＂换头术的挑战＂争鸣笔谈,特邀各位参与。请踊跃发表意见,观点不拘,长短不限,畅所欲言,各抒己见,若能针对已发观点形成争论,则更能增加读者兴趣