试论国债构成对货币供应的影响

我国国家债券从持有人构成、期限构成、利率水平几方面对货币供应产生影响。在我国目前的政治经济态势下,利率对货币需求的弹性是非常低的,换言之,我国目前还不具备通过利率实现对货币需求调节的前提条件。那种无节制地调高利率来强化其利率弹性的做法是伪科学的,也是十分危险的,应竭力避免

Advances in preparation of mesoporous silica nanoparticles and its use as different functional drug

近年来,有越来越多的文献报道关于介孔二氧化硅纳米粒（mesoporous silica nanoparticles,MSN）作药物载体的研究。本文结合近几年国内外的相关文献,介绍了由Mobli公司合成的M41S系列,圣巴巴拉大学合成的SBA系列,以及中空介孔二氧化硅纳米粒这3种最常见的MSN的特点及制备方法,并举例介绍了MSN作为药物速释载体的相关研究,同时从p H敏感型、热敏型、光响应型三方面介绍了MSN作为药物控释载体的研究。从相关研究结果可以看出,将MSN作为药物的载体,鉴于其独特的介孔孔径、可调节的纳米孔道结构、易于功能化修饰的表面等特点,可以实现对药物的速释、缓释及控释释放。由此可见,选择将MSN作为药物的载体具有广阔的应用前景。In the past a few years, mesoporous silica nanoparticles (MSN) have attracted more and more attention for their application in drug delivery. The recent relative literature was used for reference to introduce the characteristics and preparation of M41S series MSN (synthesized by Mobil Corporation), the SBA series MSN (synthesized by Santa Barbara University), and hollow mesoporous silica nanoparticles. Examples were presented to introduce the use of MSN as immediate drug delivery carrier. The use of MSN as controlled drug delivery carrier (CDDC) was illustrated via pH-responsive CDDC, temperature-sensitive CDDC, and light-triggered CDDC. MSN showed great properties in immediate/sustained/controlled drug delivery system, in view of their unique mesoporous pore diameter, adjustable nano-channel, and surface easily to be modified. The selection of MSN as drug carrier has a broad application prospect. ? 2017, Chinese Journal of New Drugs Co. Ltd. All right reserved.福建省科技计划重点项目（2013Y0074

高硫化氢合成气制甲硫醇新型钼基催化剂研究

研究了一系列负载型钼基催化剂催化含高硫化氢合成气制甲硫醇的性能 ,用XPS和ESR对其进行表征 .活性测试显示 ,钾促进的钼基催化剂催化的反应产物中甲硫醇成为主导产物 .几种钼基催化剂合成甲硫醇的活性大小顺序 :K2 MoO4/CoO/SiO2 >K2 MoO4/SiO2 >MoO3 /K2 CO3 /SiO2 >K2 MoS4/SiO2 >MoS2 /K2 CO3 /SiO2 .ESR表征显示 ,反应后的催化剂可以检测到“oxo Mo(V)”和“thio Mo(V)”物种 .XPS表征显示反应后催化剂中的Mo包含着Mo4+ ,Mo5+ 和Mo6+ ,S包含着S2 -,(S—S) 2 -和S6+ 三种价态 .添加CoO后 ,“oxo Mo(V)”含量减少 ,而“thio Mo(V)”含量增加 ,(S—S) 2 -物种的生成得到抑制 ,S2 -物种的量增多 .(Mo4+ +Mo5+ ) /Mo6+ 峰强度比为 0 75以及S2 -/(S—S) 2 -接近 1有利于甲硫醇的生成 .本文提出甲硫醇的合成与“Mo S K”相关联的反应机

Stress intensity factor histories of a steadily propagating crack under 3-D combined mode traction

Elastodynamic stress intensity factor histories of an unbounded solid containing a semi-infinite plane crack that propagates at a constant velocity under 3-D time-independent combined mode loading are considered. The fundamental solution, which is the response of point loading, is obtained. Then, stress intensity factor histories of a general loading system are written out in terms of superposition integrals. The methods used here are the Laplace transform methods in conjunction with the Wiener-Hopf technique

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

Novel Mo-based catalysts for methanethiol synthesis from high H2S-containing syngas

A series of supported Mo-based catalysts for methanethiol synthesis from high H2S-containing syngas were investigated by kinetics and XPS, ESR characterization. The activity evaluating results show that upon the potassium-promoted Mo-based catalysts, the methanethiol will become dominant product of the reaction, and the activity sequence of several Mo-based catalysts for the reaction is as follows: K2MoO4/CoO/SiO2 > K2MoO4/SiO2 > MoO3/K2CO3/SiO2 > K2MoS4/SiO2 > MoS2/K2CO3/SiO2. In the ESR characterization of the catalysts used the resonant signals of "oxo-Mo(V)" and "thio-Mo(V)" can be detected. The XPS characterization indicates that mixed valence Mo species Mo4+, Mo5+ and Mo6+ and three kinds of S species S2-, (S-S)(2-) and S6+ exist in the catalysts. As a promoter CoO was introduced into Mo-based catalysts. It was observed that the addition of CoO leads to decrease of the amount of "oxo-Mo(V) " in the catalysts, but increase of the amount of "thio-Mo(V)", which may be connected with "Mo-S-K" phase or "Co-Mo-S-K" phase, meanwhile CoO in die catalyst was found to enhance the formation of S2-, but inhibit the formation of (S-S)(2-). It was found also that the methanethiol synthesis is favored if the peak intensity ratios of (Mo4+ + Mo5+)/Mo6+ and S2-/(S-S)(2-) are kept at about 0.75 and 1 level respectively. A possible mechanism about the relationship of CH3SH formation with "Mo-S-K" phase was proposed

21世纪中国金融学教学改革与发展战略

国家教育部新世纪教改工程项目《21 世纪中国金融学专业教育教学改革与发展战略研究》, 目前已取得阶段性成果。2001 年8 月16 日至21 日, 承担该项目的中央财经大学、中国人民大学、厦门大学和复旦大学在青海省西宁市举行了成果交流和研讨会。项目主持人、中央财经大学副校长、金融学博士生导师王广谦教授主持了这次会议, 全国所有有金融学博士学位授权点的高校和科研院所都有代表出席大会, 用主持人的话来说, “全国金融学界顶尖级人物基本上都到了”。出席会议的还有教育部高等教育司刘凤泰副司长和杨志坚处长。与会专家学者回顾了近20 年国内外金融业的迅猛发展, 分析了在21 世纪随着经济全球化、金融国际化对我国经济金融带来的机遇和挑战, 以及对我国金融研究、金融学科建设和人才培养带来的冲击,大家认识到, 经过20 年的改革开放和发展, 目前我国在这些领域虽有长足的进步, 但仍远远不能适应形势发展的要求。要想把我国金融学科建设成国际一流学科, 培养出一流的高素质金融专业人才, 还必须进行一系列改革与创新。与会专家教授根据各自的教学实践, 提出了许多具有建设性的意见。研讨会上发言踊跃、气氛热烈, 不时出现不同观念的碰撞和不同观点的交锋, 对推进金融学科建设十分有益。下面将著名专家教授颇具代表性的观点( 按发言顺序) 择要摘发, 以飨读者, 以推动中国金融学科的建设与繁荣

貌合神离：中英文同款广告的符号和眼动分析

通过一系列中英文同款广告，该研究结合符号和眼动技术，指出相似的表象之下，微妙的细节调整如何折射出中西方读者对媒介内容叙述方式的不同偏好，以及处理群己关系的不同价值取向，从而呈现出“貌合神离”的警民、亲子、师生、夫妻、男女等社会关系。本文系国家自然科学基金项目“东西方不同文化思维方式对广告说服的影响：一个自下而上的脉络建构与验证”（项目编号：71372076）的阶段性研究成果

日本国内对日本海海事信息报道与分析

日本海在日本具有重要的战略意义，长期以来，一直以韩国为代表的一些国家对日本海名称存在争议。报告主要跟踪分析了日本国内报道的关于日本海经济圈的一些活动、日本海研究的最新成果以及日本海文化建设等内容