一族Lax可积的格方程,达布变换与守恒律

1IntroductionIn recent years , the nonlinear integrable latticeequations have been extensively studied ,such as theAblowitz-Ladik lattice[1], the Toda lattice[2], thedifferential-difference KdVequation[3]and so on[4-7].Inthe theory of nonlinear integrable lattice equations ,ani mportant subject is to search for new Lax integrablelattice equations .In addition,several methods for de-termining exact solutions of soliton equations havebeen developed . The Darboux transformation ( DT)method pl…     

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.     

生物学专业学生的生物信息学教育

生物信息学可以推动生命科学的快速发展，因此，生物学专业本科生应具备生物信息学的基本知识，应当在生物化学与分子生物学等课程中介绍生物信息学的基本知识，有条件时可以设生物信息学选修课。     

思想政治工作必须确立"以人为本"的崭新理念

从人的本质出发，思想政治工作的视角很广，内涵甚多，但一个重要的课题是：必须确立以人为本的崭新理念。     

信息化环境下大学生自主学习的教学设计

大学阶段的学习形式主要表现为自主学习,而教育信患化的蓬勃发展为大学生的自主学习创造了良好的外部条件.在对信息化环境下大学生自主学习特点分析的基础上,以教学设计理论为指导,重新认识教师、学生、教与学的内容、交互环境等各要素的关系,才能构建信息化环境下大学生自主学习的教学设计模式.     

Applications of speech-to-text recognition and computer-aided translation for facilitating cross-cultural learning through a learning activity: issues and their solutions

In this study, 21 university students, who represented thirteen nationalities, participated in an online cross-cultural learning activity. The participants were engaged in interactions and exchanges carried out on Facebook^® and Skype^® platforms, and their multilingual communications were supported by speech-to-text recognition (STR) and computer-aided translation (CAT) systems. The participants spoke in their native languages, and the STR system generated texts from their voice input. The CAT system then simultaneously translated the STR-texts into English. The aim of this study was to examine the accuracy rates of STR and CAT processes for different languages during intercultural communication. We also explored issues associated with these processes and how they were addressed in the study context. In addition, an attempt was made to determine whether or not our learning activity as supported by STR and CAT technologies facilitated cross-cultural learning. Our results showed that the lowest STR accuracy rate was for Belizean English whereas the highest STR accuracy rate was for French and Hindi. The lowest CAT accuracy rate was for Mongolian and Filipino, and the highest was for Spanish, Russian, and French. Seven issues associated with the STR process and ten issues associated with the CAT process were identified. The participants employed ten workarounds to address the STR-related issues and thirteen workarounds to address the CAT-related issues. We refer to a workaround as a method used by the participants to overcome a limitation related to either STR or CAT. Finally, our results demonstrated that cross-cultural learning took place; the participants understood and could explain foreign traditions to others and could also compare foreign traditions with their own. Based on our results, we made several suggestions and provided implications for the teaching and research community.     

建立农民增收长效机制是农村全面建设小康社会的核心任务——以承德市为例

农民增收问题是解决“三农”问题的核心问题,建立农民增收长效机制是农村全面建设小康社会的核心任务。就承德地区农民增收面临的人均资源占有量低,农业综合生产能力差,农业产业化经营水平低,贫困人口增收难度大等主要问题,提出了多项利于建立农民增收长效机制的对策。     

对"三农"问题的一点政治学反思

“三农”问题归根结底是农民问题——是农民的生存和发展问题，是农民的人权（农民的生存权和发展权）问题，是农民的利益问题，是农民的权利问题——是农民在国家权利资源分配中的地位问题。解决“三农”问题，当前首要的是明确农民在国家权利资源分配中的地住，给予和保障农民享有充分而平等的经济权利、政治权利、文化教育权利和社会保障权利，或者换一种说法，就是“给予农民以国民待遇”。     

电接点压力表触头烧蚀的原因及改进措施

文章分析了电接点压力表触头烧蚀的原因,提出了无触点式压力表的改进方法.     

对北宋"盗贼重法"的法律经济学分析

经济学分析法律的"效率"导向,旨在考察特定法律是否达到预定的社会目标。文章通过对宋律"盗贼重法"从设立到废除的考察指出,尽管特定立法的社会目标在于降低犯罪率,但如果法律制度出现过量供给,而打破良好秩序所必须的制度均衡时,这种制度供给就是无效的。