长尾理论在挖掘图书馆潜在用户中的运用

长尾理论告诉我们,把图书馆的潜在用户挖掘出来会拥有与显性用户相等甚至更多的读者.本文分析了图书馆潜在用户存在的原因,介绍了图书馆应用长尾理论吸纳新读者的成功案例,进而讨论了利用长尾理论挖掘图书馆潜在用户的具体措施.     

一类M-矩阵阿达玛积最小特征根的下界

讨论一个 M- 矩阵与另一个 M- 矩阵的逆的阿达玛积的最小特征根,证明了对任一矩阵B,如果 B- 1 的主对角线元素的值相等,则q( A‘B- 1) > 1n ·q( A)q( B) .     

大学物理经济性初探

本文从教育产业化角度出发 ,将市场经济规律与大学物理课程实施过程结合 ,分析了大学物理课程实施过程中与市场经济规律不符的弊端 ,并提出了大学物理课程改革的方略     

人力资本建设：中国特色社会主义文化建设的核心要义

依据马克思的两种生产理论,人力资本建设同样是中国社会全面发展所亟待解决的当务之急.由于人力资本建设与以往的人力资源管理理念有着根本上的区别,因此也就对人力资本建设的基本手段印教育,提出了更高更全面的要求:必须与教化保持着本质上的一致性.通过教育和教化所实现的人力资本建设,也就是实现和确证高素质、有个性的一代新人的培养和造就,因此而与实现和确证人的自由的全面发展的中国特色社会主义文化建设的原始价值目标设定有着内在的一致性.     

"理一分殊"与世界伦理--试论中国传统文化对"世界伦理"构想的可能贡献

筹划实施"世界伦理计划",是联合国教科文组织近年来为解决全球性危机和应对全球化进程所提出的问题的积极回应;参与该计划的中国学者刘述先教授提出以中国传统文化中的"理一分殊"来消解客观存在着的文化差异以达成共识.但对"理一分殊"命题中的"理一",似不应作狭隘的理解,而应当深入各类文明和各种文化现象的内部探索其内在蕴藏着的深层结构,从结构及其功能的关系以揭明更加普遍的东西.从人的存在及其规定性出发,揭明以人的方式对待自己和他人以致于自己的整个外部世界,是每一个人正确理解和合理处理自己的全部对象性关系的基本规范,从而可以理解为世界伦理得以成立的基本原理.     

Bicycle ergometry in subacute-stroke survivors: feasibility, safety, and exercise performance

This study evaluated the feasibility, safety, and findings from a protocol for exercise-bicycle ergometry in subacute-stroke survivors. Of 117 eligible candidates, 14 could not perform the test and 3 discontinued because of cardiac safety criteria. In the 100 completed tests, peak heart rate was 116 +/- 19.1 beats/min; peak VO(2) was 11.4 +/- 3.7 ml x kg x min(-1), peak METs were 3.3 +/- 0.91, exercise duration was 5.1 +/- 2.84 min, and Borg score was 14 +/- 2.6. Among 71 tests, anaerobic threshold was achieved in 3.0 +/- 1.7 min with a VO(2) of 8.6 +/- 1.7 ml x kg x min(-1). After screening, this protocol is feasible and safe in subacute-stroke survivors with mild to moderate deficits. These stroke survivors have severely limited functional exercise capacity. Research and clinical practice in stroke rehabilitation should incorporate more comprehensive evaluation and treatment of endurance limitations.     

珠三角“代耕农”的区域性差异比较

“代耕农”是珠三角农业流动人口中的特殊群体,对当地经济社会发展有特殊贡献。他们面临着相同的社会问题与发展困境,但在经济收入,人际交往,入户问题,征地补偿,利益诉求等方面也存在诸多区域性差异。地方政府制定解决“代耕农”问题的方案与措施时,既要注意普遍适用性,更要考虑地方差异性,必须结合当地实际提出针对性方略。     

Calculation of Phase 2 dose-finding study sample size for reliable Phase 3 dose selection

Sample sizes of Phase 2 dose-finding studies, usually determined based on a power requirement to detect a significant dose–response relationship, will generally not provide adequate precision for Phase 3 target dose selection. We propose to calculate the sample size of a dose-finding study based on the probability of successfully identifying the target dose within an acceptable range (e.g., 80%–120% of the target) using the multiple comparison and modeling procedure (MCP-Mod). With the proposed approach, different design options for the Phase 2 dose-finding study can also be compared. Due to inherent uncertainty around an assumed true dose–response relationship, sensitivity analyses to assess the robustness of the sample size calculations to deviations from modeling assumptions are recommended. Planning for a hypothetical Phase 2 dose-finding study is used to illustrate the main points. Codes for the proposed approach is available at https://github.com/happysundae/posMCPMod .     

人民币汇率走势的实证分析

影响汇率有三个指标:外国直接投资,贸易依存度和消费价格指数利用ADF检验、协整检验和误差修正模型进行实证分析,在我国经济环境下:人民币升值是合理的;浮动汇率的实施基本是合理的;但政策往往是有滞后性的,我国当前实行的浮动汇率仍处于过渡时期。     

Better Government,Happier Residents? Quality of Government and Life Satisfaction in China

Social Indicators Research - How quality of government affects residents’ life satisfaction is a seldom discussed subject, especially in a non-democratic context. This research aims to...