高校科技创新研究平台的构建与实现探析

针对高校目前研究人员之间的科技资源和成果相互封锁、开展多学科交叉研究面临多方面的困难、政策不完善、难以组建创新团队,以及研究群体组织模式落后等问题,探讨构建科技创新研究平台的意义并提出平台构建形式,以改变科研小而分散的模式,整合科技队伍,促进学科的交叉、融合与资源的共享。     

臧克家诗歌创作艺术的现实主义个性化特质

臧克家作为一位现实主义诗人,他的艺术追求在二十世纪的中国诗坛有其独特的个性与价值。他的现实主义个性化特质,突出表现在意象化的细节真实描写和诗歌语言方面的“苦吟”风格。     

The current state of the labor queue: National and regional Evidence

We employ vector autoregressive techniques to determine the current state of the labor queue. Unemployment rate differentials have narrowed in recent years, potentially due to a change in the queue ordering, though a tight labor market and a stable queue would yield similar results. We find no evidence that the queue ordering has changed, which brings into question the resiliency of gains made by minority groups. We employ the same techniques to reveal the state of the queue across geographic regions and find that substantial differences exist across regions, implying variation in the relative labor force status of demographic groups.     

火焰原子吸收法测定植物叶片中的微量铅

通过炭化、灰化、混合酸消解和稀硝酸溶解的方法处理样品,利用火焰原子吸收法测定植物叶片中微量铅的含量。待测溶液在0.1～5.0μg.mL-1范围内有很好的线性关系,回归方程为A=0.1053C+0.0071,相关系数为0.9991,检出限为0.006μg.mL-1,特征浓度为0.031μg.mL-1/1%,平均回收率为100.28%。方法适用于测定各种植物叶片中的微量铅含量,可以据此评价环境质量。     

税收征管效率综合评价指标体系研究

税收征管效率是评价税务机关工作效果的主要指标,而评价指标体系的确定是科学评价税收征管效率的基础和重点。本文分析了税收征管效率的内涵及外延,通过实证建立了税收征管效率的综合评价指标体系。     

改革开放——中华民族的复兴之路

建国以来，中国的发展以1978年为界分为前后两个30年。前30年，中国在计划经济体制下，顺利完成了国民经济的恢复任务、社会主义改造，并建立起比较完善的国民经济体系。后30年，中国通过改革开放，走上了一条中国特色社会主义发展道路，初步实现了国家的繁荣强盛，但是也面临着发展的困境。如果说，正是通过30年的改革开放，使中国真正跻身世界大国行列，那么中国在今后的发展中解决一系列发展难题，也必然要靠继续深化改革扩大开放。因此，认真总结中国改革开放的经验教训，为实现中华民族的伟大复兴就是我们必须要做的重要工作。     

Bayesian analysis of a marked point process: Application in seismic hazard assessment

Point processes are the stochastic models most suitable for describing physical phenomena that appear at irregularly spaced times, such as the earthquakes. These processes are uniquely characterized by their conditional intensity, that is, by the probability that an event will occur in the infinitesimal interval (t, t+Δt), given the history of the process up tot. The seismic phenomenon displays different behaviours on different time and size scales; in particular, the occurrence of destructive shocks over some centuries in a seismogenic region may be explained by the elastic rebound theory. This theory has inspired the so-called stress release models: their conditional intensity translates the idea that an earthquake produces a sudden decrease in the amount of strain accumulated gradually over time along a fault, and the subsequent event occurs when the stress exceeds the strength of the medium. This study has a double objective: the formulation of these models in the Bayesian framework, and the assignment to each event of a mark, that is its magnitude, modelled through a distribution that depends at timet on the stress level accumulated up to that instant. The resulting parameter space is constrained and dependent on the data, complicating Bayesian computation and analysis. We have resorted to Monte Carlo methods to solve these problems.     

经营城市的另一种思路

城市的意义现在已不仅在于行政区划,而是经济发展的象征.国家每年公布的中国城市综合实力50强排名,使主导城市生活的人和在城市内生活的人都有了不同的压力和动力.而这些压力和动力,都要考虑三个问题,即谁来经营城市?为什么经营?经营什么?