Nonlinear predator-prey singularly perturbed Robin Problems for reaction diffusion systems

The nonlinear predator-prey reaction diffusion systems for singularly perturbed Robin Problems are considered. Under suitable conditions, the theory of differential inequalities can be used to study the asymptotic behavior of the solution for initial boundary value problems. Project supported by the National Natural Science Foundation of China (No. 10071048), and by the “Hundred Talents Project” of the Chinese Academy of Sciences     

Students’ perception of frequent assessments and its relation to motivation and grades in a statistics course: a pilot study

This pilot study measures university students’ perceptions of graded frequent assessments in an obligatory statistics course using a novel questionnaire. Relations between perceptions of frequent assessments, intrinsic motivation and grades were also investigated. A factor analysis of the questionnaire revealed four factors, which were labelled value, formative function, positive effects and negative effects. The results showed that most students valued graded frequent assessments as a study motivator. A modest number of students experienced positive or negative effects from assessments and grades received. Less than half of the students used the results of frequent assessments in their learning process. The perception of negative effects (lower self-confidence and more stress) negatively mediated the relation between grades and intrinsic motivation. It is argued that communication with students regarding the purpose and benefits of frequent assessments could mitigate these negative effects.     

石油焦与煤在循环流化床中混合燃烧时SO2排放试验研究

在一热输入为0.6MW的循环流化床燃烧中试装置上进行了石油焦与煤混合燃烧和脱硫试验研究，得到燃料中石油焦与煤质量混合比、过量空气系数、床层温度、一次风率和钙硫摩尔比等参数对SO2排放的影响规律，结果表明，混合燃料中掺焦比例越大，混合燃料的硫含量越高，SO2排放浓度越高；纯烧石油焦时SO2排放浓度最高，对不同配比的混合燃料，随过量空气系数、一次风率和Ca／S摩尔比增大，SO2排放浓度降低，830-850℃的床温对脱硫最为有利，在燃用石油焦与煤质量混合比尺为1和3的混合燃料时可获得最低SO2排放。     

From ‘brain drain’ to ‘brain bridging’: transnational higher education development and graduate employment in China

ABSTRACT

In the past few decades, the internationalisation of higher education has become an increasingly popular trend across different parts of the globe. The fierce global competition and the aggravating unemployment rate, coupled with low teaching and research quality revealed by universities in mainland China, have inevitably compelled a growing number of Chinese students, in particular the financially-able ones, to pursue higher education overseas or to enrol in transnational higher education offered in mainland China. Realising the severe problem of ‘brain drain’ and having a strong conviction to transform its higher education system to become more international for enhancing the global competitiveness of its higher education system, the Chinese government has made different attempts to enhance higher education quality by learning and incorporating new ideas and practices from overseas institutions, particularly encouraging the development of transnational higher education to change the higher education landscape. With particular reference to examining the way these students evaluate their future prospects in choosing different alternatives for further studies in higher education, this study sets out against the context briefly outlined above to critically analyse the motivation of students who choose to study abroad or enrol in Sino-foreign cooperation universities. This study also discusses the extent to which the internationalisation of higher education would affect the situations of ‘brain drain’ and graduate employment in China.     

从专业与非专业差异看我国的非专业英语教育

本文重点探讨我国非英语专业的英语教育问题,从学生、教育定位、教学模式和教师四个方面分析了英语专业与非英语专业在英语教育方面的差异,指出了非专业英语教育的不足之处.针对这些不足,本文简单给出了补救措施,希望对提高我国的非专业英语教育水平提供力所能及的帮助.     

面向研究性学习培训中小学教师

为了提高全体学生的整体素质，我国基础教育提出了“研究性学习”这一新的教学模式，对此模式中小学教师普通到陌生和困难，作为培训中小学教师的教学学院，有义务帮助他们了解研究性学习，克服困难，全面提高自身素质，尽快适应这一新的教学方式。     

Performance Assessment as a Diagnostic Tool for Science Teachers

Research in Science Education - Information on students’ development of science skills is essential for teachers to evaluate and improve their own education, as well as to provide adequate...     

Neural correlates of moral sensitivity and moral judgment associated with brain circuitries of selfhood: A meta-analysis

The present study meta-analyzed 45 experiments with 959 subjects and 463 activation foci reported in 43 published articles that investigated the neural mechanism of moral functions by comparing neural activity between the moral task conditions and non-moral task conditions with the Activation Likelihood Estimation method. The present study examined the common activation foci of morality-related task conditions. In addition, the study compared the neural correlates of moral sensitivity with the neural correlates of moral judgment, which are the two functional components in the Neo-Kohlbergian model of moral functioning. The results showed that brain regions associated with the default mode network were significantly more active during morality-related task conditions than during non-morality task conditions. These brain regions were also commonly activated in both moral judgment and moral sensitivity task conditions. In contrast, the right temporoparietal junction and supramarginal gyrus were found to be more active only during conditions of moral judgment. These findings suggest that the neural correlates of moral sensitivity and moral judgment are perhaps commonly associated with brain circuitries of self-related psychological processes, but the neural correlates of those two functional components are distinguishable from each other.