吐蕃时期信息传播模式简论

以发达、开放的社会为背景,吐蕃进入了西藏第一个独立的“信息传播时代”。其传播模式基本可以划分为军事传播、驿邮传播、外交传播、文化传播和经济传播五大类型。在西藏原始信息传播的基础上,吐蕃的信息传播发生了质的飞跃,并开创了西藏古代传播的若干典型模式。     

20世纪西方文学批评理论平议

20世纪出现了各种文学批评理论.这些理论对我国文学理论工作者、文学创作者甚至高等院校的学生都产生了影响,使他们在文学创作、文学批评及文学欣赏的过程中都不可避免地反映了这些理论的观点.因此,有必要对这些理论进行简明的论述,使我们对这些理论有进一步的了解,看到每一种理论的可取之处和错误之处,取其精华,去其糟粕,达到洋为中用,从而进一步了解文学评论的发展情况,进一步提高我们的理论水平.     

Reducing Hospital Readmissions by Integrating Empirical Prediction with Resource Optimization

Hospital readmissions present an increasingly important challenge for health‐care organizations. Readmissions are expensive and often unnecessary, putting patients at risk and costing $15 billion annually in the United States alone. Currently, 17% of Medicare patients are readmitted to a hospital within 30 days of initial discharge with readmissions typically being more expensive than the original visit to the hospital. Recent legislation penalizes organizations with a high readmission rate. The medical literature conjectures that many readmissions can be avoided or mitigated by post‐discharge monitoring. To develop a good monitoring plan it is critical to anticipate the timing of a potential readmission and to effectively monitor the patient for readmission causing conditions based on that knowledge. This research develops new methods to empirically generate an individualized estimate of the time to readmission density function and then uses this density to optimize a post‐discharge monitoring schedule and staffing plan to support monitoring needs. Our approach integrates classical prediction models with machine learning and transfer learning to develop an empirical density that is personalized to each patient. We then transform an intractable monitoring plan optimization with stochastic discharges and health state evolution based on delay‐time models into a weakly coupled network flow model with tractable subproblems after applying a new pruning method that leverages the problem structure. Using this multi‐methodologic approach on two large inpatient datasets, we show that optimal readmission prediction and monitoring plans can identify and mitigate 40–70% of readmissions before they generate an emergency readmission.     

“真实性”的弃用--解读后殖民文学作品《桑德拉大街》的写作策略

米歇尔·安东尼的小说《桑德拉大街》讲述了由英文老师代表的殖民文化和学生代表的本土经验之间的冲突。小说描写了“正统的”殖民帝国话语与殖民地现实的语言之间的冲突,作者通过语言的逆转、颠覆、最终弃用了殖民帝国“真实性”的话语权威,从而体现了弃用“真实性”的后殖民文学写作策略。小说发展了这种写作策略,推翻作品原有的形式和主题,将小说后殖民性的局限转变为小说的形式与原创力量的来源。     

“委托-代理”视角下的高校岗位管理与薪酬设计研究

高校岗位管理是人事制度改革的重要内容,津贴分配是稳定人才队伍、激发办学活力的关键。文章依据委托-代理理论,结合数学模型,重点剖析了学校与专业技术人员的理性预期,分析了岗位管理的异质性和任务差别,探讨了契约管理和薪酬设计问题,以期为拓宽高校人事管理工作思路提供参考。     

对身份和家园的追寻--后殖民批评视角下《落雪中》解析

卡里尔·菲利普斯是当代英国著名的黑人移民作家之一。其代表作《落雪中》讲述了生活在英国的加勒比海裔黑人移民所面临的身份认同危机,以及对文化身份和家园的追寻。小说不仅再现了黑人移民面临的文化困境,更重要的是反映了作者对流散族群如何才能保持自身文化身份的思考。从后殖民批评视角分析小说中黑人移民及其后代所面临的失落感和文化上的无归属感,揭示黑人移民只有通过认可自己的民族文化才能成功构建自己的文化身份。     

焊后热处理对7075铝合金搅拌摩擦焊接头组织及性能的影响

使用搅拌摩擦焊（FSW）设备对厚度为6 mm的7075高强铝合金平板进行对接试验。采用不同热处理工艺（固溶温度、时效时间）对接头进行热处理,并对不同热处理工艺下的接头进行微观组织观察和显微硬度测试。研究结果表明：7075铝合金FSW接头由焊核区（WNZ）、热机影响区（TMAZ）及热影响区（HAZ）组成,WNZ为细小均匀的等轴晶组织;热处理后接头WNZ部分晶粒发生粗化;随着固溶温度的升高,晶粒粗化程度增大;随着时效时间的延长,WNZ晶粒粗化程度变化不明显;FSW接头显微硬度分布呈“W”型,热处理后接头显微硬度均有不同程度的升高,随着时效时间的延长,接头的显微硬度先增大后减小;固溶温度490 ℃、时效温度120 ℃、时效时间24 h是厚度为6 mm的7075铝合金FSW接头的最佳热处理工艺参数。     

Flexible‐Duration Extended Warranties with Dynamic Reliability Learning

Frequent technological innovations and price declines adversely affect sales of extended warranties (EWs) as product replacement upon failure becomes an increasingly attractive alternative. To increase sales and profitability, we propose offering flexible‐duration EWs. These warranties can appeal to customers who are uncertain about how long they will keep the product as well as to customers who are uncertain about the product's reliability. Flexibility may be added to existing services in the form of monthly billing with month‐by‐month commitments or by making existing warranties easier to cancel with pro‐rated refunds. This paper studies flexible warranties from perspectives of both customers and the provider under customers' reliability learning. We present a model of customers' optimal coverage decisions and show that customers' optimal coverage policy has a threshold structure under some mild conditions. We further show that flexible warranties can result in higher profits and higher attach rates in a homogeneous market as well as in a heterogeneous market with multiple segments differing in various dimensions.     

电信企业文化的建设与实践——以南京电信为例

企业文化建设对企业的发展具有重要作用。面对加入WTO后的新形势,面对国际电信市场的竞争,面对国内各大运营商的挑战,电信企业的经营活动必须一改过去的经营思想、管理模式、经营模式,充分发挥企业文化的重要作用,把企业的文化建设与企业的经营活动紧密结合起来,使企业的文化活动成为推动企业经营的动力,成为提高企业核心竞争力的重要手段。     

Large Robust Games

With many semi‐anonymous players, the equilibria of simultaneous‐move games are extensively robust. This means that the equilibria survive even if the simultaneous‐play assumption is relaxed to allow for a large variety of extensive modifications. Such modifications include sequential play with partial and differential revelation of information, commitments, multiple revisions of choices, cheap talk announcements, and more.