可控随机非完整Hamilton系统的矩稳定

研究了可控随机非完整Hamilton系统的矩稳定性的条件，通过恰当地选择控制参量u，从而使系统满足稳定性条件，首先，给出可控随机非完整Hamilton系统的运动方程和平衡方程，然后，讨论了可控随机非完整Hamilton系统的均值稳定性的条件。     

破产分布及其方程

In this paper, the ruin distributions were analyzed, Including the distribution of surplus immediately before ruin, the distribution of claim at the time of ruin, the distribution of deficit, and the distribution of surplus at the beginning of the claim period before ruin. Several Integral equations for the ruin distributions were derived and some solutions under special conditions were obtained.     

Chaotic phenomenon and the maximum predictable time scale of observation series of urban hourly water consumption

The chaotic characteristics and maximum predictable time scale of the observation series of hourly water consumption in Hangzhou were investigated using the advanced algorithm presented here is based on the conventional Wolf's algorithm for the largest Lyapunov exponent. For comparison, the largest Lyapunov exponents of water consumption series with one-hour and 24-hour intervals were calculated respectively. The results indicated that chaotic characteristics obviously exist in the hourly water consumption system; and that observation series with 24-hour interval have longer maximum predictable scale than hourly series. These findings could have significant practical application for better prediction of urban hourly water consumption.     

中华文艺复兴与“文化融合”

中华文艺复兴是振兴中华民族、开启民族新时代、重振民族辉煌的重要途径。欧洲文艺复兴的历史经验值得认真学习和借鉴。“文化融合”是文化发展的重要规律，任何民族文化的发展和创新都离不开文化融合的历史进程。中华传统文化的优秀成分作为其核心和本质在文化融合的过程中不会被融化和消解，会在新的文化形态的形成过程中不断改造外来文化并随着时代的前进和社会进步被赋予新的内容。新的文化形态的形成和建立与时代有着密切的关系，与社会经济基础有着密切的关系。继承发扬中华优秀传统文化，吸收各民族进步文化的优秀成果，充分体现社会主义时代精神的崭新的文化体系，一定会建立起来。     

先秦文献成书时代述略

现存先秦文献成书时间极为复杂,根据前人研究成果,先秦文献的思想形成或成书时代分为三个阶段：春秋以前、春秋时期、战国时期。其中成书于春秋以前的有《周易》、《尚书》、《诗》的部分内容;成书于春秋时期的有《春秋》、《左传》、《国语》等以及《尚书》、《诗》等的部分内容;成书于战国时期的有《墨子》、《孟子》、《庄子》等以及《尚书》、《周易》等的部分内容。考察并了解先秦文献的成书时代,对于正确引用和解读这些历史文献具有重要意义。     

Multi-stakeholder process strengthens agricultural innovations and sustainable livelihoods of farmers in Southern Nigeria

Purpose: In this paper, we explore the strategic role of Multi-stakeholder processes (MSP) in agricultural innovations and how it has impacted livelihood assets’ (LAs) capital dynamics of stakeholders in platforms in West Africa.

Design/Methodology/Approach: We demonstrate how LA capitals and socio-economic dynamics induced by MSP can enhance cassava production efficiency but also create opportunities and challenges that influence platform dynamics and impacts. We use a multistage sampling procedure and sustainable livelihood model (e.g. stochastic frontier functions and Tobit regression) to analyse LA capital dynamics of the stakeholders.

Findings: We showed that the LA of the MSP participants (0.72) was found to be significantly higher (χ²?=?3.732, p?Practical implications: We recommend the institutionalization of MSP in the Agricultural Research for Development (AR4D) with more extension follow-up services so as to adequately and appropriately unleash the potentials in social capital networks that enable the development, effective dissemination and adoption of agricultural innovations.

Theoretical implications: This study suggests that soft-transfer of technologies seems to dominate at MSP inception. But at maturity, the results of the struggle between researchers and farmers would lead to co-reaction and community-based research. Consequently, the knowledge and power dynamics that take place within the MSP should be considered the centre of co-construction and platform dynamics.

Originality/Values: The study provided a practical experience on how MSP can be institutionalized in the AR4D programmes to support agricultural innovation systems and foster pro-poor growth and livelihoods.     

高职学生时间管理倾向现状调查研究

为了更深入了解高职学生时间管理现状,采用黄希庭编制的青少年时间管理倾向量表,对771名在校学生进行问卷调查。结果显示,在不同性别和年级之间时间管理倾向存在显著差异(p<0.05),且男生在时间价值感中的个人取向上得分的平均值高于女生,大三与大一学生在社会取向和设置目标两个维度上的得分均值有显著差异,并且两组学生的总分也有显著差异。     

简论我国古代游仙诗的发展及表现主题

游仙诗源于汉代以前的辞赋,盛行于魏晋南北朝。它的发展经历了楚辞和《庄子》的神游诗阶段,慕道颂仙的“仙真人诗”和乐府游仙诗的仙诗阶段,自觉而又成熟的新体游仙诗阶段。游仙诗的内容非常庞杂,表现主题大体上可分为两个方面:因受时间的局限而追求生命永恒和因受空间局限而追求生命自由。     

时标上的一类中立型非线性动力方程的稳定性

讨论了时标上的一类中立型非线性动力方程的稳定性,得出了该方程一致稳定的充分条件.     

我国“三农”困境的制度分析

长期以来,我国农业还存在着增产不增收、城乡居民收入差距拉大等问题。原因之一在于制度安排上,如家庭联产承包责任制的局限性,产业结构调整的制度欠缺,制度外公共产品的供给成本高,城乡分割的管理体制以及小农专业化分工生产面临高昂的交易费用等。这就要求建立并实施土地使用权和所有权的分离、城乡统筹的经济发展战略、城乡统筹的公共产品供给体系以及新兴农民合作经济组织的制度安排,以此来推进我国三农问题的解决。