大学生自尊与主观幸福感相关研究

为探讨大学生自尊与主观幸福感的关系,我们采用《自尊量表》与《国际大学调查》对河南师范大学300名大学生进行调查,研究结果表明：（1）大学生自尊在文、理科学生之间,城、乡学生之间差异均不显著;在性别、是否班级干部之间差异显著。主观幸福感在文、理科学生之间,在性别、城乡、是否班干部之间差异显著。（2）大学生自尊与主观幸福感、总体满意度、具体满意度、积极情感呈显著的正相关,与消极情感呈显著的负相关。（3）主观幸福感中的具体满意度、消极情感以及人口统计学变量中是否班干部三个变量对自尊的预测作用最大,可联合解释自尊的22.6%。     

论我国环境污损司法鉴定机构的革新与完善

近年来,环境犯罪日益引起公众的高度关注。环境污损鉴定是环境犯罪定损、立案和科刑的关键环节,但现行环境污损司法鉴定制度缺陷较多,在很大程度上对环境犯罪的打击不力。我国应建构一种由政府财政支持,具有公益性质的,并由同一行业领域内的非政府组织负责管理的环境污损鉴定机构,以更高效、准确地打击环境犯罪,保护公众的安全。     

基于名实体的新闻专题自动综述系统研究与实现

自动综述是指针对特定的主题进行多文档自动摘要,最终提供简洁、重要的信息.新闻专题自动综述是多文档自动摘要的一种应用形式,它可以帮助人们快速了解某个新闻事件的概貌.提出了一种基于名实体的新闻专题自动综述方法.该方法首先从新闻专题的文章集合中识别并挑选出代表新闻要素的时间、地点、人物、机构等名实体,经过语义处理后进行名实体的频率统计.然后根据句子中名实体的频率,结合句子位置、长度等因素计算句子的综合权值选出摘要句,最后根据句子的时间戳信息对句子排序输出得到最终的新闻专题综述.实验结果表明,该方法是有效的,具有实用价值.     

Fingerspelling and sign language as alternative codes for reading and writing words for Chilean deaf signers

The study examined the role of sign language and fingerspelling in the development of the reading and writing skills of deaf children and youth. Twenty-six deaf participants (13 children, 13 adolescents), whose first language was Chilean Sign Language (CHSL), were examined. Their dactylic abilities were evaluated with tasks involving the reading and writing of dactylic and orthographic codes. The study included three experiments: (a) the identification of Chilean signs and fingerspelled words, (b) the matching of fingerspelled words with commercial logos, and (c) the decoding of fingerspelled words and the mapping of these words onto the writing system. The results provide convergent evidence that the use of fingerspelling and sign language is related to orthographic skills. It is concluded that fingerspelling can facilitate the internal representation of words and serve as a supporting mechanism for reading acquisition.     

枇杷叶中三萜酸的提取、分离和检测研究进展

枇杷叶是一种传统的中药植物资源,富含熊果酸、齐墩果酸、科罗索酸等多种三萜酸类化合物,具有较高的应用价值。本文对枇杷叶中三萜酸的种类、提取、分离、检测和生物活性进行了综述。     

An Empirical Research on DDL in L2 Writing

L2 （second language） writing teaching and research is greatly influenced by the advent of computer technology. This paper reviews papers, in the field of DDL （data-driven learning） in L2 writing, published in international journals and in Chinese journals, and differences are found in research methodology, research perspective, and research realm. Based on the analysis of the differences, the study aims at finding out the effects of the application of DDL in L2 teaching classroom. The present study, employing semi-structured writing and learning journals, explores how English learners perceive the use of corpora in their writing process. Based on the statistics, it is concluded that DDL in L2 writing is beneficial for vocabulary acquisition. However, corpus consultation does not work well for all learners. Learners＇ attitudes toward the use of corpus are various. The major findings may find application in teaching practice, and implications for teaching are discussed.     

反思裕固族教育研究——以近三年肃南裕固族自治县学校教师论文为例

反思是一种积极的思维活动和探究行为,通过反思可以明白过去和现在的不足。以求对现在和将来进行弥补。本文以裕固族聚居区——肃南裕固族自治县教师近三年主要的裕固族教育研究论文为例,通过对研究主题、研究内容、学术规范、研究观念的反思,提出了由“应然”式研究向“实然”式研究转变、由零星的研究向系统的研究转变、由数量的增加向质量的提高转变等对策,以求促进裕固族教育研究的良好发展。     

系统函数与时域特性的可视化仿真平台设计

系统函数是信号与系统课程中一个非常重要的概念,它在系统分析中占有重要地位,系统的时域特性是系统的重要特性之一,它取决于系统函数的零、极点分布。利用仿真软件Matlab中GUI设计了系统函数与时域特性的可视化仿真平台,它直观形象地把系统函数与时域特性之间的关系表现出来,加深了学生对此重要内容的理解和掌握,并激发了学生的学习兴趣。     

Dietary Fat Intake and Exercise Among Two- and Four-Year College Students: Differences in Behavior and Psychosocial Factors

Given the demographic differences among two-year colleges and four-year universities and the relatively limited access to health education and campus-based health resources, this study compares the frequency of limiting dietary fat intake and exercising among two- and four-year college students. A total of 2,265 undergraduate students aged 18–25 at a two-year college and a four-year university completed a 108-item online survey in October 2008. We found that two-year college students had less confidence, motivation, and intention to engage in healthy behaviors and reported fewer close friends who exercise regularly but more friends who eat high-fat foods. After controlling for age, gender, ethnicity, and parental education, two-year (versus four-year) college students less frequently limited dietary fat (F(2,2227) = 21.64, p < .001) and less frequently exercised ≥ 20 minutes a day (F(5,2232) = 14.21, p < .001). Thus, research should focus on developing interventions targeting the different psychosocial factors that influence nutrition and exercise among two-year college students.