宋代官府对坊肆刻书的管制

宋代,坊肆刻书数量多,且流布面广,社会影响极大。在宋王朝各个不同的社会历史时期,随着国家政治形势的不断变化,官府对民间坊肆刻书的管理与控制,其侧重点有所不同。边事紧张时,出于国家安全的考虑,对涉及时政朝章、边事军机的文字的控制较为严厉。党争时期,当权者对持不同政见者实行打压政策,对相关的著述文字予以禁毁,各地书肆的有关印版也多遭毁劈。至于谣言邪说,蛊惑人心,是社会动乱的一大诱因,必在禁毁之列。总之,宋王朝对坊肆刻书进行严厉的管制,有关的禁令带有浓重的政治色彩。     

Blockbusters: Ideas for the block center

The values of block play include development of hand-eye coordination, thinking skills, language development, cooperation among children, mathematical concepts, and many others. Guidelines for the block center and activities are described and illustrated. Samples of task cards and sentence strips give practical ideas for the classroom.     

中国特色社会主义理论体系结构新探——基于拉卡托斯理论的分析

拉卡托斯认为,一个科学研究纲领主要由硬核、保护带和指导研究纲领未来发展的启发规则等部分组成。依此看,中国特色社会主义研究纲领亦主要是由这几部分构成。中国特色社会主义理论的硬核规制着这一理论既是科学社会主义的,又具有中国特色,其保护带包括社会主义本质论等十个方面。中国特色社会主义研究纲领的正面启发规则包括解放思想、实事求是规则、理论创新规则和人民利益至上规则等。在中国特色社会主义发展实践中,要坚守"内核",适时调整其"保护带"。     

To Block or Not To Block: That's Not the Question

Abstract

The block schedule emerged in the late 1980s as one structuring practice that allowed educators to address several problems associated with the traditional high school schedule. Among its posited advantages is the opportunity for teachers to engage students in active teaching strategies that require more time than the traditional schedule allows. Research on the use of teaching strategies in traditional and block schedule high schools is limited. Similarities and differences in survey responses of more than 2,000 teachers working in traditional- and block-schedule schools were described and analyzed in this study. In general, few differences were evident in opinions about level of use, appropriateness, and training for a variety of instruction approaches.     

读周生杰博士《鲍廷博藏书与刻书研究》

周生杰博士的《鲍廷博藏书与刻书研究》一书对于徽籍文献巨子鲍廷博的研究与表彰有两点值得注意:其一,全景式展现鲍廷博之家世、行实及其藏书、献书、刻书活动等;其二,注重往深处开掘,揭示鲍氏藏书、刻书的背景、思想、特色及其影响等。此外,《研究》以细腻而又饱蘸情感的笔墨展开论述,为鲍廷博的研究与表彰增色不少。     

特殊分块矩阵的Jordan标准形及应用

Jordan标准形是矩阵分析中一类重要的标准形。利用数学归纳法,证明4种特殊分块矩阵的Jordan标准形,并且应用所得的结果证明两个矩阵Kronecker积的特征值所对应Jordan块的个数及其阶。     

Intensive mode delivery of a neuroanatomy unit: Lower final grades but higher student satisfaction

In 2011, Macquarie University moved to a three‐session academic year which included two 13‐week sessions (traditional mode) and one seven‐week session (intensive mode). This study was designed to compare the intensive and traditional modes of delivery in a unit of undergraduate neuroanatomy. The new intensive mode neuroanatomy unit provided the same quantity and quality of material to the same standard, delivered by the same teachers and over the same total hours, but in a shorter timeframe. All students enrolled in session 2 (traditional mode) and session 3 (intensive mode) were invited to participate in this study. The main outcome measures were the final course grades and level of satisfaction with the course. Although there was no significant difference between the two cohorts in self‐rated level of knowledge (P = 0.148), the traditional mode cohort achieved significantly higher final grades compared to the intensive mode cohort (P = 0.001). Similarly, the distribution of final grades was also different between the two cohorts. The two cohorts were equally satisfied with the unit overall, and with the lectures and tutorials. However, the intensive mode cohort was more satisfied with the laboratory practical classes compared to the traditional mode cohort (P < 0.001). Thus this study demonstrates that in the case of neuroanatomy, which is high in content, when the course is taught to the same standards as exist in the traditional mode of delivery, the students do not do as well even though they enjoy the course equally. Anat Sci Educ 6: 286–293. © 2013 American Association of Anatomists.     

基于分块颜色和形状特征的图像检索

针对图像检索中单一特征检索的不足,提出一种结合分块颜色特征和形状特征的图像检索方法,用空间局部信息增强全局颜色特征,采用分块颜色直方图提取图像的颜色特征,利用Hu不变矩提取图像的形状特征,以分块颜色和形状作为综合特征,采用相应的相似性度量方法进行图像匹配．实验结果证明了该方法的可行性,适用于基于区域或对象的图像检索．     

块复合矩阵之块特征值的若干性质

特征值问题的研究一直以来都是数学矩阵方面的重点课题,从而块复合矩阵的块特征值领域的研究也颇具系统。通常的特征值问题是块复合矩阵之块特征值的一种特殊形式。因此,块特征值问题的研究起到了十分重要的作用。讨论块复合矩阵之块特征值的若干性质,同时系统地研究块复合矩阵特征值及其本身相关的一些基本性质和特点。还研究了一类特殊块复合矩阵A和B可换的条件,并加以证明。     

基于整数提升小波变换的图像去噪方法

由于传统小波变换在图像去噪应用上的一些缺点,本文使用整数提升方法进行图像去噪。整数提升方法不受Fourier变换限制,其具有传统小波的多分辨率特性,而且运算速度有很大的提高。提升方法可以从一个新的角度来构造小波滤波器,它的核心是确定预测算子和更新算子,对每步提升下取整,就实现了整数小波变换。将其去噪去噪效果与传统小波变换的去噪效果进行了比较。仿真结果表明,整数提升方法取得了比传统小波变换更好的去噪效果。