"代理家长"、"留守儿童之家"与"还原家庭教育"——重庆市南川区关爱留守儿童的理念与实践

面对日益突出的农村留守儿童教育问题,重庆市南川区各级政府和广大教育工作者进行了深入的理论思考,并将其关爱留守儿童的理念付诸实践,取得了初步成效,引起了社会各界的广泛关注。本文即是其关爱留守儿童理念和实践经验的概述。     

Voices of teacher candidates of color on white race evasion: ‘I worried about my safety!’

Abstract

This qualitative study investigated the negative impacts minority teacher candidates receive from white teacher candidates in a required multicultural education class. The findings reveal that four teacher candidates of color had difficulty positioning themselves among the overwhelming silencing power of whiteness in the class. The white students were tactful at evading power and race and flattening the existing hierarchical power relations through the discourses of colorblindness and by preying on the minority instructor. Their understanding of diversity was also shallow. On the other hand, the teacher candidates of color were afraid that they might be labeled as the ones who spoke up against the white students and fearful of the possibility of retaliation and ostracism from the white peers. It seems that the teacher education program’s structure allowed the white candidates to impose strong negative peer pressure on the teacher candidates of color.     

西部地区地方高校办学特色初探

文章结合西部地区高校办学的现状，从西部地方性高校定位的制约因素及正确把握定位的几个问题入手，分析如何形成自己的核心竞争力、如何培养适应西部地区区域经济发展的特色人才。     

Mathematical Analysis of Energy Efficiency in IEEE 802.11 DCF

The standardized IEEE ,802. II distributed coordination function （ DCF） provides a contention-based distributed channel access mechanism for mobile stations to share the wireless medium. However, when stations are mobile or portable units, power consumption becomes a primary issue since terminals are usually battery driven. This paper proposes an analytical model that calculates the energy efficiency of both the basic and the RTS/CTS access mechanisms of the IEEE 802. II protocol. The model is validated with simulation results using NS-2 simulation package. The effects of the network size, the average packet length, the initial contention window and maximum backoff stages on the energy efficiency of both access mechanisms are also investigated. Results show that the basic scheme has low energy efficiency at large packet length and large network size, and depends strongly on the number of stations and the backoff procedure parameters. Conversely, the RTS/CTS mechanism provides higher energy efficiency when the network size is large, and is more robust to variations in the backoff procedure parameters.     

在夹缝中谋求发展--地方高校学报现状与改革刍议

地方高校学报存在着综合性强、学术性差、封闭办刊等问题，必须办出特色，开放办刊，优化管理，注重效益，才能使之走出困境。     

多媒体在色彩理论教学中的运用

多媒体在色彩理论教学中的应用应以色彩理论为基础来指导实践,主要从同一构图的色调练习、色彩的心理与想像分析、固有色、环境色、光源色对环境的影响三方面进行尝试。在教学中应鼓励学生保持传统的绘制能力,与计算机设计语言相互沟通、相互补充。     

色彩对比关系及其在绘画中的应用

色彩对比关系的本质是用强调的手段使不同色彩产生差别。色彩的对比有其自身的特性与规律，同时，对比的效果又受诸多因素的影响。特别是互补色对比是色彩语言中最富于魅力的部分，它是色彩构成的核心。对色彩各种对比关系的分析与探究，有助于我们在绘画实践中有效地发挥色彩的创造力。     

二元函数局部一致收敛的条件

给出了当x→a时二元函数f(x,y)在y0局部一致收敛的充要条件,并且建立了实用的判别方法.     

沉博绝丽色境浑融--论李商隐诗歌的色彩表现艺术

李商隐诗歌的色彩表现艺术体现师法自然的赋色原则,这与李白、王维、李贺诗歌的设色有所不同。其色彩意象丰富而表意多样。大量使用精神色彩意象,以“艳色写悲情”为代表的相同色彩组合的异用,依境调色以及亮色点睛等设色特征使得色彩与意境相融。其设色还依据题材、抒情对象、生平阶段等不同表现内容营构风格各异的色彩意境。由此形成了李商隐诗歌色彩表现“沉博绝丽、色境浑融”的风格。     

地方院校对高职通识教育本质与实现途径研究的表达

高职通识教育研究是高职教育人对高职教育本质认识的一种深化和凝练,是对高职人才成长规律的透视。高职教育与传统高等教育的差异自然造成高职通识教育不同于已有的通识教育。本文所指高职通识教育的本质是高等教育文化价值在高等职业教育领域的具体化,它是基于专业又高于专业的、引领高职生以高等文化方式学习工作生活的教育,从地方高职院校的角度,提出目前高职通识教育的实现途径也要区别于普通本科的通识教育。