Child learning and family mealtime environment,parenting style and family functioning among preschoolers in Hong Kong

A two-wave longitudinal study on 470 parent–child dyads examined the impact of family mealtime environment, parenting style and family functioning on preschoolers’ (three to six years old) learning. Measures included parent report on parenting style, family functioning, family meal frequency, mealtime television, feeding practice, teacher/parent report of academic competence and individual assessment of preschoolers’ preschool concepts. Family mealtime environment variables were associated with pre-schoolers’ learning, in addition to parenting style and family functioning, after controlling for family income and wave 1 preschoolers’ learning. The results highlighted the importance of family mealtime environment on preschoolers’ learning.     

论古代白犬书写的文化内涵——以史志、 志怪小说为中心

从文献记载看,古代白犬书写的意义指向比较复杂,总体来看表现为两大文化功能:一是用以祈福辟邪;二是象征怪异.白犬用来祈福辟邪,主要表现在祭祀祈禳、 豢养以辟邪和进入药理几个方面;而象征怪异这一文化现象,先是经过汉代谶纬叙事的发挥而广泛流布,后又进入志怪小说的精怪叙事,在后世形成了谶纬叙事与精怪叙事并存的故事形态."见白犬必有灾咎"这一言说模式得以固定下来.     

广州市非遗数字化保护的困境与对策研究

广州市现有市级以上非物质文化遗产180余项,其数字化保护方面存在着制度不完善、人才匮乏、技术规则无统一标准等困境,课题组调研后建议从三个方面推动非遗数字化保护:一是制定平台建设、非遗信息采集、传承人知识产权保护、非遗产业化开发等方面的操作制度,推动非遗数字化进程;二是编制科学规划,分阶段实现非遗项目的深度数字化;三是加强与大、中小学合作,尤其是加强与职业类院校合作,推动非遗传承人走进职业院校成立"技能大师工作室",发掘培养潜在传承人,建立专业人才队伍.     

A balancing act in urban social-ecology: human appreciation,ponds and dragonflies

Green spaces in cities provide cultural ecosystems services (CES) such as nature connection, wildlife interaction and aesthetic appreciation which can improve aspects of human well-being. Recognising these benefits, researchers are now examining the complex relationship between humans and nature in urban social-ecology. Most studies investigate people’s appreciation and valuation of different green space features and their contribution to urban biodiversity. Recommendations arising from such studies are best practices to achieve a balance between landscape aesthetic and ecological objectives, but many knowledge gaps still exist. In a social-ecological project in Greater London, appreciation of ponds and dragonflies in urban green spaces, and the environmental factors determining dragonfly diversity were investigated. We found ponds and their appearance were valued by people as enhancing their green space experience. The preference for wild-looking ponds was moderate. Dragonflies were enjoyed for their colour and high visibility, especially by those who had basic dragonfly knowledge. Species richness of dragonflies was positively associated with habitat heterogeneity in and around a pond. However, people were unable to relate a heterogeneous pond to more dragonfly species. For the first time, some factors that influence the human appreciation-ponds-dragonflies (HPD) relationship in an urban context are revealed. To fully realise the CES potential of ponds and dragonflies in Greater London, a HPD framework is proposed. The framework underpins strategies that foster cultural sustainability for ponds and dragonfly conservation.     

珠江三角洲城市社会极化与新型城镇化路径选择

城市社会极化是城市社会分异的不平衡和极端状态,不同的城镇化路径选择,将直接影响到城市社会分异和极化程度。改革开放以来珠三角的城市社会分异持续加速,出现了越来越明显的城市社会极化现象,并引发了一系列社会民生问题。显然,传统的以经济发展为导向、忽略人与社会发展的城镇化路径是其产生的重要原因。本研究从城市社会极化的视角出发,通过对珠三角城市社会极化现象及其产生的社会民生问题的分析,对传统城镇化路径中出现的问题进行反思,并以此为基础提出新型城镇化路径选择的方向。     

Two new estimators for the proportion of true null hypotheses in multiple test

In multiple hypothesis test, an important problem is estimating the proportion of true null hypotheses. Existing methods are mainly based on the p-values of the single tests. In this paper, we propose two new estimations for this proportion. One is a natural extension of the commonly used methods based on p-values and the other is based on a mixed distribution. Simulations show that the first method is comparable with existing methods and performs better under some cases. And the method based on a mixed distribution can get accurate estimators even if the variance of data is large or the difference between the null hypothesis and alternative hypothesis is very small.     

Score test for homogeneity of dispersion in generalized Poisson mixed models with excess zeros

In many applications, the clustered count data often contain excess zeros and the zero-inflated generalized Poisson mixed (ZIGPM) regression model may be suitable. However, dispersion in ZIGPM is often treated as fixed unknown parameter, and this assumption may be not appropriate in some situations. In this article, a score test for homogeneity of dispersion parameter in ZIGPM regression model is developed and corresponding test statistic is obtained. Sampling distribution and power of the score test statistic are investigated through Monte Carlo simulation. Finally, results from a biological example illustrate the usefulness of the diagnostic statistic.     

Pricing power options with a generalized jump diffusion

In this article, the valuation of power option is investigated when the dynamic of the stock price is governed by a generalized jump-diffusion Markov-modulated model. The systematic risk is characterized by the diffusion part, and the non systematic risk is characterized by the pure jump process. The jumps are described by a generalized renewal process with generalized jump amplitude. By introducing NASDAQ Index Model, their risk premium is identified respectively. A risk-neutral measure is identified by employing Esscher transform with two families of parameters, which represent the two parts risk premium. In this article, the non systematic risk premium is considered, based on which the price of power option is studied under the generalized jump-diffusion Markov-modulated model. In the case of a special renewal process with log double exponential jump amplitude, the accurate expressions for the Esscher parameters and the pricing formula are provided. By numerical simulation, the influence of the non systematic risk’s price and the index of the power options on the price of the option is depicted.     

Establishing a new scopic regime: the new landscape painting of Mao’s era

ABSTRACT

After 1949, with ‘serving the people’ established as the basic guideline of art, the reform of traditional landscape painting, which had been appropriated by the cultural elites for thousands of years, was put on the agenda as well. Beginning from the early of 1950s, there were continual debates on the reform of traditional Chinese painting within the art field, through which many artists gradually reached a consensus on the development direction of Chinese painting. At the same time, stimulated by the large-scale xiesheng movement sponsored by the government, Chinese landscape painting changed dramatically in subject, theme, and brushstroke technique, and developed a new style which has its own signifying system. Blending both Chinese and western drawing skills, the new landscape painting successfully created a unique scopic regime, which can establish an organic relationship between personal aesthetic experience and collective historical experience. As a prominent cultural achievement of Mao’s era, the new landscape painting embodies the cultural politics and the technologies of the self at that time.