4-6岁幼儿电子游戏卷入度与得分关系研究

为了解4-6岁幼儿电子游戏卷入度与游戏得分的关系,对随机选取的20名4-6岁的幼儿在选用的电子游戏中的行为表现及游戏得分进行了观察研究。结果发现: （1）电子游戏卷入度的正性维度得分（M=37.750）高于负性维度得分（M=23.600）;（2）游戏得分从高到低的项目为：保卫萝卜（M=3.200）>水果消消乐（M=2.400）>俄罗斯方块（M=1.400）;（3）电子游戏卷入度负性因子与游戏得分的交互作用明显,F(6,14)=14.368,P<0.005。结论：（1）益智电子游戏可以较好促进4-6岁幼儿产生喜悦、注意、鼓励、努力等积极情绪;（2）游戏规则和操作越简单,越容易成功的益智游戏,更容易吸引4-6岁幼儿;（3）场景多变性、任务挑战难度越大的益智游戏,具有双刃剑的效应,虽然可以引起4-6岁幼儿参与游戏的兴趣,但是也容易给他们带来消极的情感体验。     

Cosmopolitan sociology and the classical canon: Ferdinand Tönnies and the emergence of global Gesellschaft

How relevant are figures from the classical sociological canon for present day efforts to found cosmopolitan forms of sociological thought? According to the critique of Ulrich Beck, the classical sociologists remain far too wedded to nation‐state‐centred ways of thinking to play an important role in the development of cosmopolitan sociology. This paper argues that such a critique fails to account for the ways in which certain classical sociologists were attuned to the emerging cosmopolitical conditions of their own time, were not wholly wedded to nation‐state‐based conceptualizations, and thus can function as both groundings of, and inspirations for, cosmopolitan sociological endeavours. The apparently unpromising case of Tönnies is focused on, the paper showing how he outlined an account of how and why a planet‐spanning condition of Gesellschaft developed a position which diverges from and counterpoints Marx's analysis of similar phenomena in important ways. The stereotype of Tönnies as an arch‐conservative is also dissolved, allowing him to be considered as one of the most important antecedents of contemporary cosmopolitan sociological practice and a canonical figure still relevant for present‐day purposes.     

A two phases queueing system with Bernoulli vacation schedule under multiple vacation policy

This paper deals with a single server Poisson arrival queue with two phases of heterogeneous service along with a Bernoulli schedule vacation model, where after two successive phases service the server either goes for a vacation with probability p (0≤p≤1) or may continue to serve the next unit, if any, with probability q(=1−p). Further the concept of multiple vacation policy is also introduced here. We obtained the queue size distributions at a departure epoch and at a random epoch, Laplace Stieltjes Transform of the waiting time distribution and busy period distribution along with some mean performance measures. Finally we discuss some statistical inference related issues.     

取代三联吡啶光度法测定铬(Ⅵ)

研究了 6 ,6″—二甲基— 4′—苯基 - 2 ,2′ :6′ ,2″—三联吡啶 (TPY)与Cr(Ⅵ )的显色反应。在pH5 .0 6 .2的HAc -NaAc介质中 ,Cr(Ⅵ )与该试剂形成稳定的橙色络合物 ,其吸收峰波长λmax=36 7nm ,表观摩尔吸光系数为 1.72× 10 5L(mol·cm) -1,Cr(Ⅵ )浓度在 1.3～ 76 μg/L内服从比尔定律。精密度和准确度实验结果表明 ,该方法准确 ,可用于环境水及电镀水中铬 (Ⅵ )的测定     

“六西格玛”文化在应用型高校大学文化建设中的价值与实践探索

"六西格玛"(简称6σ)是当今国内外备受推崇的现代企业管理方法,在应用型高校大学文化建设中通过对事件和统计数据严格的分析,这种理念同样可以给应用型高校大学文化建设带来突破性的改进。应用型高校大学文化建设中应当从中汲取先进的理念和方法,持续改进大学文化建设的过程管理,不断提高大学文化建设的实效性,实现促进学校教育教学事业的科学发展。本文在探讨6σ文化本质及涵义的基础上,通过分析应用型高校大学文化建设的核心,提出其在应用型高校大学文化建设中的应用价值,并进一步探究了6σ文化在应用型高校大学文化建设中的实践策略。     

嘉庆六年京畿特大水灾生态原因及历史教训探析

嘉庆六年（1801）永定河决口，酿成五百年一遇的特大洪水。京畿直隶一带一百三十余个州县中，受灾地区达九十多个，堤防崩坍，房屋被毁，灾民流离失所，农作物减产绝收，给国家建设和人民生活带来重大损伤。此次灾害的原因既有17世纪全球整体气候变化所导致的极端天气，也有永定河特殊的地理情况，更有长期不当垦荒和滥砍滥伐所导致的严重的水土流失等原因。反思此次特大水灾的生态原因及历史教训，对于历史上整体大气候特别是极端气候的归纳分析，以及对今天的森林资源保护与正确开发等问题都具有重要的借鉴意义。     

Bayesian robustness for multiparameter problems

Bayesian robustness is studied for ε-contamination classes of prior distributions. Nonparametric classes of contsminations such as the class of all unimodal spherically symmetric densities are considered here. Posterior φ-divergence and its curvature are used to measure the sensitivity of priors on the resulting posterior densities. Examples are provided to illustrate our results.     

Does trust increase willingness to pay higher taxes to help the needy?

The article studies the causal effect of trust on the willingness to pay higher taxes to help the needy in a sample of 29 countries of Eastern and Southern Europe, and the former Soviet Union and Mongolia. It is hypothesized that interpersonal trust leads to a greater willingness to pay taxes to help the needy since (i) trust increases the likelihood of helping strangers; (ii) trust fosters solidarity and cooperation when working to solve common problems in society; and (iii) trust reduces suspicion with respect to the perceived misuse of redistributed money. Three key findings are that the more people trust each other, the more they are ready to support the welfare state; the effect of trust on welfare state support holds even in a contextual environment characterized by rather lower levels of trust and relatively underdeveloped systems of redistribution; and higher individual‐level trust fosters tax morale and helps deter tax evasion.     

Explaining the causes of poverty in the West Indies: A cross-cultural comparison

Research into attitudes towards the poor and lay explanations for poverty have heen primarily concerned with the structure and determinants of these attitudes and explanations. Whereas a number of variables — education, religion, ethnic group — have been shown to relate to explanations for poverty, there have only been a few cross-cultural studies. This study set out to compare the explanations adolescents gave for poverty in two West Indian islands — the relatively wealthy island of Barbados and the relatively poor island of Dominica. The overall economic development/prosperity of the two islands, and the extent and visibility of economic inequality between the two islands appeared to account for the numerous national differences. These results are discussed in terms of the social, political and historical differences between the two islands.     

DISTRIBUTIONAL INCENTIVES IN AN EQUILIBRIUM MODEL OF DOMESTIC SOVEREIGN DEFAULT

Europe's debt crisis resembles historical episodes of outright default on domestic public debt about which little research exists. This paper proposes a theory of domestic sovereign default based on distributional incentives affecting the welfare of risk‐averse debt and nondebtholders. A utilitarian government cannot sustain debt if default is costless. If default is costly, debt with default risk is sustainable, and debt falls as the concentration of debt ownership rises. A government favoring bond holders can also sustain debt, with debt rising as ownership becomes more concentrated. These results are robust to adding foreign investors, redistributive taxes, or a second asset.