运用建模思维突破晶体计算

晶体计算是近几年高考查的热点和难点,运用建模思维从晶体结构、性质入手,将难点分解,进而突破晶体计算问题.     

Understanding the graphical challenges faced by vision-impaired students in Australian universities

Information graphics such as plots, maps, plans, charts, tables and diagrams form an integral part of the student learning experience in many disciplines. However, for a vision impaired student accessing such graphical materials can be problematic. This research seeks to understand the current state of accessible graphics provision in Australian higher education. We conducted an online survey of 71 vision-impaired university students and semi-structured interviews with 44 key stakeholders (students, academics, disability liaison officers and accessible graphics providers). We found that difficulty in accessing graphical materials was a barrier to many vision-impaired students and that there were systemic problems with current processes for accessible graphics provision. Recommendations are made on ways to address these concerns in order to provide a more equitable higher education experience.     

Effects of glucose and gibberellic acid on glucosinolate content and antioxidant properties of Chinese kale sprouts

Glucosinolates, anthocyanins, total phenols, and vitamin C, as well as antioxidant capacity, were investigated in Chinese kale sprouts treated with both glucose and gibberellic acid (GA₃). The combination of 3% (0.03 g/ml) glucose and 5 μol/L GA₃ treatment was effective in increasing glucosinolate content while glucose or GA3 treatment alone did not influence significantly almost all individual glucosinolates or total glucosinolates. The total phenolic content and antioxidant activity of Chinese kale sprouts were enhanced by combined treatment with glucose and GA₃, which could be useful in improving the main health-promoting compounds and antioxidant activity in Chinese kale sprouts.     

移动互联时代对大学生理想信念教育的影响及对策研究

本文对移动互联时代下大学生理想信念教育现状进行较为全面和系统的分析,进而提出移动互联时代对大学生理想信念教育的影响,最后指出移动互联时代下加强大学生理想信念教育的应对之策。     

教学设计的概念及其对学科教学的影响

本文探讨了教学设计的发展、概念、特点以及对学科教学工作的影响,其成果有利于学科教学工作人员将教学设计理论运用到具体的课程中,提高课堂的教学效果。     

社会主义语境中的文化消费逻辑

波德里亚等人的消费理论因其产生语境与阐释语境与中国语境存在差异，并不完全适用于中国的文化消费现实。在我国的文化消费及发展战略中，实现民众的平等而不是差异是一个主导策略。如果说平等是我国推进文化消费带动社会趋向和谐的核心理念，那么利润最大化则是激发中国的文化艺术生产单位走入日常生活，贴近民众的首选策略。在社会主义语境中多侧面、多层次的文化消费带动了文化生产，影响了文化产品的功能，使文化生产——消费系统不断调整内在结构，使消费对象、消费品身份、评判模式以及服务理念都发生着新的逆转。     

遏制地方保护主义在于制度创新

“十五”规划是我国跨入新世纪的行动纲领，正在进行现代化和建设社会主义市场经济的中国，反对并遏制地方保护主义是“十五”规划的应有之义。地方保护主义已经严重影响中央的权威，制约市场经济的发展，有碍社会进步，产生不正之风，导致腐败现象发生，已引起人们的广泛关注。只有制度创新，才能遏制地方保护主义。     

Latent Markov Factor Analysis for Exploring Measurement Model Changes in Time-Intensive Longitudinal Studies

When time-intensive longitudinal data are used to study daily-life dynamics of psychological constructs (e.g., well-being) within persons over time (e.g., by means of experience sampling methodology), the measurement model (MM)—indicating which constructs are measured by which items—can be affected by time- or situation-specific artifacts (e.g., response styles and altered item interpretation). If not captured, these changes might lead to invalid inferences about the constructs. Existing methodology can only test for a priori hypotheses on MM changes, which are often absent or incomplete. Therefore, we present the exploratory method “latent Markov factor analysis” (LMFA), wherein a latent Markov chain captures MM changes by clustering observations per subject into a few states. Specifically, each state gathers validly comparable observations, and state-specific factor analyses reveal what the MMs look like. LMFA performs well in recovering parameters under a wide range of simulated conditions, and its empirical value is illustrated with an example.     

Cross-Racial Interaction Among Undergraduates: Some Consequences, Causes, and Patterns

This study utilized a national longitudinal data set of college students to examine the educational relevance of cross-racial interaction and how campuses can best structure such opportunities. The general pattern of findings suggests that cross-racial interaction has positive effects on students' intellectual, social, and civic development. The results show that institutions could enhance such experiences by enrolling larger proportions of students of color and by offering students more opportunities to live and work part-time on campus. While these findings apply uniformly to white students, the frequency of cross-racial interaction does not always follow an expected path of steady gains for students of color as the student body becomes increasingly more diverse. Implications of the findings are discussed.     

苗、汉杂居地区苗族学生低学业成就的原因分析--以毕节市观音桥办事处苗族教育为例

在苗、汉杂居地区,苗族学生的学业成就远低于汉族学生。经济贫困落后和生产力水平低下、苗族自身传统文化中消极因素的影响、学校教育的失误以及家庭背景的不利是导致苗族学生低学业成就的主要原因。要提高苗族学生的学业成就,应当争取政府和社会各界的支持,加大对少数民族教育的投入力度;借鉴多元文化教育理念,整体优化学校育人环境;加强双语教师队伍建设,重视双语教育;以基础教育课程改革为契机,加快民族教育课程开发。