日本的教育经济学:实证分析的展望和课题(续)

本总结了迄今为止日本教育经济学中实证研究的成果，探讨了今后需要进一步研究的课题。本从以下几个方面阐述了日本教育经济学的发展，即人力资本理论和教育收益率、劳动市场与教育、教育成果的成因分析、教育产业分析、教育需求的决定因素等，并比较各类研究的目的、方法、结论和政策意义。虽然以上每一个方面都积累了很多研究成果，可是由于资料的限制，教育经济学中的实证研究尚存在着许多有待进一步研究的课题。     

我国面向政府的信息集成研究综述

文章围绕政府信息集成这一主题,从研究视角、集成方法与技术、集成评价三个方面进行了总结和评述,展现了我国政府信息集成的研究成果,指出了存在的问题,并对未来的研究方向进行了讨论.     

Electron-hole hybridization in bilayer graphene

Band structure determines the motion of electrons in a solid, giving rise to exotic phenomena when properly engineered. Drawing an analogy between electrons and photons, artificially designed optical lattices indicate the possibility of a similar band modulation effect in graphene systems. Yet due to the fermionic nature of electrons, modulated electronic systems promise far richer categories of behaviors than those found in optical lattices. Here, we uncovered a strong modulation of electronic states in bilayer graphene subject to periodic potentials. We observed for the first time the hybridization of electron and hole sub-bands, resulting in local band gaps at both primary and secondary charge neutrality points. Such hybridization leads to the formation of flat bands, enabling the study of correlated effects in graphene systems. This work may provide a novel way to manipulate electronic states in layered systems, which is important to both fundamental research and application.     

HLA Gene in 5 Cases of Liver Injury Related to Baikal Skullcap

HLA association with drug-induced liver injury has recently been pointed out about multiple medicines. The aim of this study was to evaluate relationship between HLA gene and liver injury related to Baikal skullcap-containing Kampo medicines (BSCK). We previously examined HLA genes in 3 cases of BSCK-induced liver injury. Recently we could encounter 2 cases diagnosed as “definitely-related case” of BSCK-induced liver injury. HLA genes of the 2 cases were analyzed by Sequencing Based Typing method with Next Generation Sequencer at HLA Laboratory in Kyoto. HLA-DPA1*02:02:02 and DPB1*05:01:01 were observed in the 2 cases: concordance was not observed in HLA-A, B, C, DRB1, DRB4, DQA1, or DQB1. The previous 3 cases of BSCK-induced liver injury had the same allele type to the 2 cases only in HLA-DPA1. Putting all these together, HLA-DPA1*02:02:02 was observed in common among 5 cases of BSCK-induced liver injury. HLA-DPA1*02:02:02 is possibly associated with BSCK-induced liver injury.     

On simplified Hurwitz stability conditions for low-degree weighted diamond polynomials

In this paper, the results on the stability of a weighted diamond of polynomials which was studied by Kharitonov and Tempo (Systems Control Lett. 22 (1994)) are simplified for low-order polynomials. Specifically, for n=3 and 4, the number of polynomials required to check the stability is four and six, respectively, instead of eight. Further, diamond of polynomials which were studied by Barmish et al. (IEEE Trans. Automat. Control AC-37 (9) (1992)) are also investigated.     

网络舆情监测技术研究及应用综述

介绍网络舆情监测的概念及研究现状,从信息提取、文本挖掘处理、舆情分类、文本表示与主题发现、舆情意见挖掘和观点分析5个方面,介绍网络舆情监测的有关技术,并将网络舆情监测技术中涉及的各关键挖掘技术进行整合,讨论了网络舆情监测技术在实践上的应用及其意义。     

Stabilization irrespective of bounds of uncertain variations for linear uncertain systems with delays

In this study, the stabilizability irrespective of the bounds of uncertain parameters and time delays is investigated for linear uncertain delay systems. For uncertain systems without delays, a linear time-varying or time-invariant uncertain system has been shown to be stabilizable independent of the bounds of uncertain variations if and only if the system has a particular geometric configuration called an antisymmetric stepwise configuration (ASC) or a generalized antisymmetric stepwise configuration (GASC), respectively. In this study, fundamental approaches to investigating the stabilizability of delay systems with specific uncertainty structures such as ASCs or GASCs are presented. For a class of 3-dimensional systems, it is shown here that if a linear time-varying or time-invariant uncertain delay system has an ASC or a GASC, respectively, then the system can be stabilized, however large the given bounds of delays and uncertain parameters might be.     

论坛舆情演化趋势预测和政府最佳干预点选择的研究

针对舆情在网络论坛中传播的特点建立数学模型,分析了其演化的时段规律。以“厦门公交大火”事件为例,提出了逐步回归的数据拟合方法验证了模型的有效性,并提出了政府介入论坛舆情进行管控的工作流程。最后总结了本研究的不足和未来的研究方向。     

Adverse effects of energy restriction on myogenic enzymes in judoists

In this study, we examined the effects of weight reduction by restricting energy intake on muscle function and serum concentrations of myogenic enzymes in judoists. Twenty-seven male judoists aged 19.3±0.6 years (mean±s) were divided into three groups based on the extent of body weight reduction: high weight reduction (height 1.70±0.05?m, body mass 78.5 ±13.6?kg), low weight reduction (height 1.70±0.05?m, body mass 80.7±13.1?kg) and a group that maintained body weight while continuing to perform exercise training (height 1.78± 0.07?m, body mass 78.7±8.8?kg). Body composition, blood biochemistry, energy intake and anaerobic power were assessed on four occasions: 20 days (baseline data), 4 days and 1 day before and 7 days after competition. Compared with baseline, body mass and fat-free mass were significantly lower 1 day before competition in the high and low weight reduction groups (both P?<0.01); these changes persisted for 7 days after competition in the high weight reduction group. Serum creatine kinase was significantly elevated 1 day before competition in all groups (all P?<0.05), and remained higher 7 days after competition in both the high and low weight reduction groups. Compared with baseline, maximal anaerobic power was significantly lower 1 day before competition only in the high weight reduction group (P?<0.01). Our results suggest that energy restriction in addition to intense exercise training before major competition has an adverse effect on anaerobic power and elevates serum creatine kinase concentration, leading to an impairment of muscular function and an increased susceptibility of muscle tissue to injury.