基于判别规则的最小不一致知识子集识别

为解释本体中概念不满足的原因,利用2个对等转换（即公理细化和本体约减）与3个判别规则识别不满足概念C的最小不一致知识子集（MUPS）.其中,判别规则基于不满足概念的传递性,将MUPS分为3类：完全依赖于C（MUPSf）、传递依赖于C（MUPSt）和不确定依赖于C（MUPSu）.实验结果表明：在本体不满足概念的MUPS中,MUPSt往往占大多数,但只有MUPSf可以明确指出概念不满足的根本原因.本体建模人员和领域专家可以采用迭代修复方式,每一次修复只考虑MUPSf,以提高修复效率.所得分类结果对于从修复角度评价本体质量以及指导修复工作都具有重要意义.     

Fermion number fractionization

Solitons emerge as non-perturbative solutions of non-linear wave equations in classical and quantum theories. These are non-dispersive and localised packets of energy — remarkable properties for solutions of non-linear differential equations. In the presence of such objects, the solutions of Dirac equation lead to the curious phenomenon of ‘fractional fermion number’. Under normal conditions the fermion number takes strictly integral values. In this article, we describe this accidental discovery and its manifestation in polyacetylene chains, which has led to the development of organic conductors. (left) Kumar Rao is a Postdoctoral Fellow at PRL, Ahmedabad. He is interested in particle physics phenomenology as probed in particle colliders and formal aspects of quantum field theory. (right) Narendra Sahu is currently a postdoctoral fellow at Lancaster University, UK. His main research area includes Cosmology and Astroparticle physics. Currently he is working on dark matter and matter anti-matter asymmetry of the universe. (center) P K Panigrahi’s research interests are in the area of quantum computation, solitons in Bose Einstein condensates & nonlinear optical media. He is also deeply interested in science education and derives pleasure from long weekend walks.     

在NOVELL远程自举工作站上制作系统盘

在NOVELL远程自举工作站上,用FORMAT及SYS命令制作系统盘存在不足,跨版本制作系统盘更是困难,本文提供几种简单可行的方法,解决了这些问题。     

高职护理专业正常人体结构课程教学改革的探索

正常人体结构是重要的医学基础课程,通过课程改革,优化教学内容,改革教学方法,更新教学手段,创新教学评价方式。对接职业标准,开发课程标准;依据课程标准,开发教学资源;创新教学模式,实施任务驱动和信息化教学;改革评价方式,实施能力评价。使该课程更加符合职业的需要,从而提高人才培养质量。     

Sex Differences in the Use of Science and Technology in Children's Cartoons

Television is among the many mechanisms that transmit information about sex-appropriate behavior to children. In order to examine whether television cartoons portray male and female characters using science and technology in a different manner, we examined the amount and type of science and technology utilized by characters in popular children's cartoons. Results revealed that most characters in these cartoons were male who were often depicted using science and technology, usually while being aggressive. When female characters were shown, they were portrayed as both able and prosocial, using science and technology for the greater good of others, rather than for destruction. In addition, female characters performed prosocial behaviors such as caring and sharing, showed self-confidence and explained things to others, and were less angry and violent than were male characters. Our findings suggest that the portrayal of female characters as competent may be successfully linked with the tendency to also show them as prosocial. Despite relatively positive portrayal of female characters, however, their appearance was rare and most likely not the main focus of the action.     

The effect of processing depth on ESL reading comprehension

This study investigated the effect of depth of processing on second-language reading comprehension. It was hypothesized that questions which entailed shallow cognitive processing would be easier to answer than questions which entailed deeper cognitive processing. Three of the four research hypotheses were confirmed. Previous training (or lack of it) may account for why one of the predictions was not confirmed. This paper concludes with a cautionary note about the types of reading performance teachers can expect, and the recognition of open-ended testing techniques in secondlanguage reading assessment.     

The CTY Talent Search: International Applicability and Practice in Ireland

The Talent Search model of above level standardized testing is a core practice of the Center for Talented Youth (CTY) at The Johns Hopkins University in the USA, where it was introduced in 1971. The Hopkins Model was adapted for use at the Irish Centre for Talented Youth (CTYI) at Dublin City University in 1993, and this adaptation marks the first major international replication, incorporating both the mathematics and verbal portions of the SAT. The SAT proved to be a valuable assessment instrument for these students, whose scores resembled those of American students.