初中化学解题推理思维的案例分析

在初中化学教学阶段,由于受年龄和身心发展的影响,学生思维的运作形式主要是具体形象的推理思维,包括演绎推理和归纳推理,本文结合具体的案例,从定性推理思维和定量推理思维两个方面加以分析。1 定性推理思维及其案例分析定性推理是确定研究对象具有某种属性的推理     

A learning-based method to detect and segment text from scene images

This paper proposes a learning-based method for text detection and text segmentation in natural scene images. First, the input image is decomposed into multiple connected-components (CCs) by Niblack clustering algorithm. Then all the CCs including text CCs and non-text CCs are verified on their text features by a 2-stage classification module, where most non-text CCs are discarded by an attentional cascade classifier and remaining CCs are further verified by an SVM. All the accepted CCs are output to result in text only binary image. Experiments with many images in different scenes showed satisfactory performance of our proposed method.     

高校自主创新的着力点与促进地方经济发展的切入点研究

21世纪是以知识经济为主要经济形态的时代,科技自主创新将进一步成为富民强省(国)的主导力量和未来发展的主导战略,而创新的实现取决于人的创新精神、创新意识和创新能力。本文对当代大学生创新能力培养的现状进行了分析,进而对提高大学生创新能力的有效途径进行探讨,并切实结合当地经济发展需要,建设高新技术孵化基地,增强高校科技创新对地方经济发展的辐射作用,把人才和智力资源转化为现实生产力。     

语文活动中创新和实践能力的培养

创新精神是民族进步的灵魂。面对世界科技飞速发展的挑战,我们必须把增强民族创新能力提到关系中华民族兴衰存亡的高度来认识。教育在培育民族创新精神和培养创造性人才方面,肩负着特殊的使命。语文是教育的基础学科,在实施素质教育、培养创造性人才上有着独特的不可替代的作用。把培养学生的创新意识和实践能力放在语文教学的重要位置上,使语文教育迈上一个新台阶。     

艺术类专业大学英语教学模式探究

本文重点讨论了如何针对艺术类专业大学生的特点:独特个性和接受能力,构建既能体现现代教育理念又有利于学生英语学习的特有模式.我们在教学中尝试了通过课程中的任务设计和小组合作的学习方式,开展互动,突出了教学设计的个性化和实用性,实现特色化教学,变枯燥的知识讲述为鲜活的、真实的学习体验和实践.     

In vitro remineralization of hybrid layers using biomimetic analogs

Resin-dentin bond degradation is a major cause of restoration failures. The major aim of the current study was to evaluate the impact of a remineralization medium on collagen matrices of hybrid layers of three different adhesive resins using nanotechnology methods. Coronal dentin surfaces were prepared from freshly extracted premolars and bonded to composite resin using three adhesive resins (FluoroBond II, Xeno-III-Bond, and iBond). From each tooth, two central slabs were selected for the study. The slabs used as controls were immersed in a simulated body fluid (SBF). The experimental slabs were immersed in a Portland cement-based remineralization medium that contained two biomimetic analogs (biomineralization medium (BRM)). Eight slabs per group were retrieved after 1, 2, 3, and 4 months, respectively and immersed in Rhodamine B for 24 h. Confocal laser scanning microscopy was used to evaluate the permeability of hybrid layers to Rhodamine B. Data were analyzed by analysis of variance (ANOVA) and Tukey’s honest significant difference (HSD) tests. After four months, all BRM specimens exhibited a significantly smaller fluorescent area than SBF specimens, indicating a remineralization of the hybrid layer (P≤0.05). A clinically applicable biomimetic remineralization delivery system could potentially slow down bond degradation.     

神奇的魔灯:怪异思维

本文论述什么是怪异思维,怪异思维的特点,怪异思维的运用和怪异思维的方法。     

实践“三个代表”要求 把党的组织建设提高到新的历史阶段

我们党是社会主义现代化建设事业的核心领导力量。面对新世纪新情况、新变化,必须按照“三个代表”的要求,坚持民主集中制,充分发扬党内民主;建立健全科学的领导体制和工作机制;努力建设一支高素质的党的干部队伍,把党的组织建设提高到新的历史阶段,充分发挥党组织核心力量的作用,进一步巩固党的执政地位。     

实变函数论课程建设改革的几点浅议

本探讨了当今教育喀革的进展现状中存在的问题，就实变函数论的定位讨论其课程建设改革中的一些问题．     

Chinese middle school teachers’ preferences regarding performance evaluation measures

Teacher performance evaluation currently is receiving unprecedented attention from policy makers, scholars, and practitioners worldwide. This study is one of the few studies of teacher perceptions regarding teacher performance measures that focus on China. We employed a quantitative dominant mixed research design to investigate Chinese teachers’ preferences for teacher performance measures and the possible reasons for their preferences. Considering the quantitative results, the surveyed Chinese teachers identified fulfillment of additional roles, collaboration with faculty and staff, and students’ test scores as the most important measures for performance evaluation. Qualitatively, the most important measures that the surveyed teachers reported were the teacher’s morality, workload, and students’ test scores.