新世纪PC技术发展综述

IT技术发展日新月异,计算机基础教学应与时俱进,将最新发展动态融入课堂教学中,本文简要回顾总结了近年来发展较为成熟的PC新技术。     

基于IPv4/IPv6双协议栈的通信模块及实现

介绍了IPv6下的套接字地址结构及Socket API函数,通过在IPv4/IPv6双协议栈服务器端创建一个IPv6套接字,并调用IPv6下协议无关的Socket API函数,实现了一个基于TCP的客户/服务器通信模块。实验证明,该通信模块能同时支持IPv4与IPv6。     

Do students expect compensation for wage risk?

We use a unique data set about the wage distribution that Swiss students expect for themselves ex ante, deriving parametric and non-parametric measures to capture expected wage risk. These wage risk measures are unfettered by heterogeneity which handicapped the use of actual market wage dispersion as risk measure in earlier studies. Students in our sample anticipate that the market provides compensation for risk, as has been established with risk augmented Mincer earnings equations estimated on market data: higher wage risk for educational groups is associated with higher mean wages. With observations on risk as expected by students we find compensation at similar elasticities as observed in market data. The results are robust to different specifications and estimation models.     

数字双闭环直流调速控制系统硬件设计

在带电流截止环节的转速闭环调速系统中,由于转速和电流两种反馈信号都加到同一个调节器上,两者相互关联影响,很难调整调节器的参数,难以保证两种调节过程具有同样良好的动态性能.本设计采用ATMega8作为调速系统的主控制芯片,把转速和电流两种反馈信号分别进行调节控制,并将模拟系统转变为数字系统,实验结果显示本系统具有良好的快速性和跟踪效果.     

TEM8阅读理解得分率与应试者词汇广度的相关性分析——以2010TEM8阅读测试为例

词汇广度对应试者读懂语篇字面含义有较大影响,但实验研究表明,应试者的词汇广度对TEM8阅读理解得分率无显著性影响,TEM8阅读测试重点在于考核应试者对语篇深层意义,即语言在特定语境中含义的理解。在阅读理解测试的高级阶段,应试者对语篇的理解程度受其背景、层次和程度等因素的影响。     

基于DotNetNuke系统的模块开发研究

在对DotNetNuke（简称DNN）运行机制分析的基础上,以Banner模块的开发为例,针对首次接触DNN的程序人员不熟悉基本开发步骤这个主要问题,介绍了制作DNN模块的详细流程,指出了环境搭建中的一些常见问题和注意事项。     

肺癌小鼠MDSC和T细胞变化

目的：探讨肺癌小鼠CD4＋T细胞、CD8＋T细胞和骨髓源性抑制细胞（ MDSC）的比例和数量变化。方法：采用LLC细胞皮下接种制备小鼠肺癌肿瘤模型,流式细胞仪检测肿瘤小鼠骨髓、脾脏、淋巴结内CD4＋T细胞、CD8＋T细胞和MDSC的数量变化。结果：与正常对照小鼠相比,肿瘤小鼠脾脏、淋巴结内CD4＋T细胞、CD8＋T细胞的比例和数量显著降低,骨髓CD4＋T细胞变化不明显,但CD8＋T细胞显著减少。 MDSC 在肿瘤小鼠骨髓、脾脏和淋巴结内的比例和数量则显著增加。结论：肺癌小鼠T细胞数量降低而MDSC细胞数量增加,诱导对肿瘤细胞的免疫耐受。     

计算机自适应序列考试概述

计算机自适应序列考试(CAST)是一种考试实施程序,也是一种考试设计的方法学。本文以一个1-3-3模式的三阶段CAST为例,介绍了CAST的基本框架、组卷策略与步骤,以及CAST的实施。CAST既能像计算机自适应考试(CAT)一样高效,同时又能满足考试的内容要求,为实现高品质的计算化考试带来了新的哲学理念。     

论“模块式教学＂在高职院校应用文写作课程中的应用

在高职院校应用文写作课程中运用“模块式教学’,是从职业教育的实际需求出发,将内在逻辑联系紧密、学习方式、要求及教学目标相近的教学内容进行整合,强调能力本位,重视专业差别的一种教学方法。由于在具体的教学过程中要对教学内容进行机动灵活地取舍,在课堂中情景化模拟已经系统科学化,从而使‘模块式教学”更符合高职院校各个专业对人才培养目标的定位,符合市场需求和课程衔接的规律。     

“Is Gay the New Black?”: An Intersectional Perspective on Social Movement Rhetoric in California's Proposition 8 Debate

This essay charts a critical intersectional rhetoric as a means for understanding the articulation of a Civil Rights Movement (CRM) analogy in marriage equality campaigns. Analyzing the campaign against Proposition 8, California's version of the Defense of Marriage Act, I argue that the use of such analogizing elides difference, prevents meaningful and complex conversations about power and oppression, and makes visible the material intersectional tensions between and among communities of color and gay and lesbian communities and how these discourses further marginalize those that identify as queer people of color. Through criticism of campaign commercials, movement strategy, and the protest rhetoric after the proposition passed, I argue that CRM analogy discourse historicizes racism, privileges white gay identities, and exacerbates divisions that prevent coalition building.