新时期汉语词汇变异管窥

词汇是语言诸要素中最活跃、最富于变化的部分。新时期社会生活日新月异 ,新事物、新观念的大量产生 ,使得汉语词汇也多姿多彩 ,新词新语新用法也应运而生。主要表现为 :一是内容丰富———从词义上说 ,涉及到社会生活的各个领域 ;从来源上说 ,有外来词、方言土语、古语词、新造词等。二是产生方式多种多样———常采用创新、类化、转化等方式     

The Computerization of Career Services: Critical Issues to Consider

Increasingly, career centers on university and college campuses are making use of the World Wide Web to help their users with a myriad of career related needs. This technological service delivery mode has many advantages that will be briefly reviewed in this article. As well, a computer emphasis has the potential for drastically changing career centers as we know them: their traffic patterns, staffing needs, resource procurement, and perhaps most importantly, their outcomes in the lives of the students who make use of them. This article discusses these changes and through a review of seven critical issues, challenges the reader to closely examine the implications for technology within their own career centers.     

用兆欧表检测电子元件

开发常规测量仪表的多种用途是启发和培养学生创造性思维的有效途径之一.作者提出了若干实例,把兆欧表用于在非专业条件下的多种电子元件的检测工作之中.     

高职非英语专业新生英语词汇学习策略运用的研究

笔者从学生默写、作业和试卷中发现高职学生在词汇记忆和运用上存在不少问题,本文试采用问卷和采访两种方式,对高职某班非英语专业新生的英语词汇学习策略的运用进行了调查。在此基础上,本文提出了培养和提高学生词汇记忆能力和词汇运用能力的建议。     

拟南芥NHX基因密码子使用特性分析

运用CodonW程序对拟南芥NHX基因密码子组成、同义密码子使用频率和全长编码区密码子使用各项参数的计算和统计分析．结果表明：密码子适应指数（CAI值）与最优密码子使用频率（FOP）、密码子偏爱指数（CBI）均呈显著正相关（P〈0．05）;有效密码子数（ENC）与同义密码子第3位碱基含量（T3s）呈极显著负相关（P〈0．05）．拟南芥NHX基因RSCU值〉1的密码子多以A或T结尾．     

Exploring the Effects of Financial Aid on the Gap in Student Dropout Risks by Income Level

Using national survey data and discrete-time logit modeling, this research seeks to understand whether student aid mediates the relationship between parental income and student dropout behavior. Our analysis confirms that there is a gap in dropout rates for low-income students compared with their upper income peers, and suggests that some types of aid are associated with lower risks of dropout. Thus, we examine the interaction between financial aid type and parental income to explore whether, and if so how, different types of aid may reduce the dropout gap by income level group. We find that the receipt of a Pell grant is related to narrowing the dropout gap between students from low- and middle-income groups, although overall the interaction between Pell grant and income is not significant. Loans and work-study aid both have similar effects on student dropout across all income groups. Methodologically, our results demonstrate the need to model dropout behavior temporally and to avoid main-effect bias by incorporating interaction effects.

程度副词修饰名词结构探析

程度副词修饰名词原本不是一个被语法学界完全认可的语法组合,然而在当代口语及书面语中,“程度副词 名词”组合却有越来越多的人使用。可见,“程度副词 名词”虽是一类很特殊的结构,但已具有相当程度的可接受性。与一般意义上的名词不同,进入这一结构中的名词需具有由具体指称向情状描述转化的潜在语义特征,这一类名词与程度副词的组合弥补了形容词语义表达上的问题,并由此引发了部分名词向名形兼类词的转变。     

注册报告制对科技期刊论文发表的变革性影响分析

学术发表偏差的存在使非阳性科学研究难以获得支持,并且滋生了论文数据造假的现象。注册报告制论文发表模式是一种新型的学术论文发表机制,它不注重于论文的研究结果,而是把重心更多地集中于研究开展的过程。本文分析注册报告制的背景与内涵,阐述注册报告制论文发表的全过程,分析该制度与传统学术论文发表制度的优劣势,并归纳注册报告制近年来的发展趋势,从而提出推动注册报告制在我国发展的建议。