高校应按照素质教育的要求选拔学生

复旦大学在高考改革中,多年来致力于以素质教育的理念为指导,努力探索大学招生制度的改革,2006年3月,在全国率先进行了自主招生与选拔录取的试验。此举为全面实施并推进素质教育导向,为高校选拔合格生源提供了全新的思维模式与操作实践。     

对杨明《“事出于沉思，义归乎翰藻”解》的商榷

关于如何理解萧统《文选序》中“事出于沉思,义归乎翰藻”两句的含义,学术界长期来意见纷纭,莫衷一是,后读杨是先生有关文章,在对两句含义的总体把握上,彼此所见略同,唯觉杨文对某些局部问题的疏解,似尚有可商榷之处。     

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.

浅析电视广告受众的选择性心理

广告受众接受广告是有选择的，这对广告的有效性产生着重要的影响。广告受众的选择性心理体现在注意、理解、记忆三个环节。要增强广告的有效性，只有顺应公众在这三个方面的选择性规律，加强对受众的心理引导，才能取得较好的市场效果。     

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。     

温州软土地区基坑支护方案的优选研究

在分析温州地区的环境和地质特点的基础上,总结温州软土地区基坑支护常用的方案,指出基坑支护设计、施工和监理过程中存在的问题。对基于灰理论的基坑支护方案优选方法中的指标重新调整,引入指标权重计算关联度,通过具体的工程实例验证多目标决策方法在基坑支护方案优选的合理性和实用性。     

Reliability and validity of field-based fitness tests in youth soccer players

This study aimed to establish between-day reliability and validity of commonly used field-based fitness tests in youth soccer players of varied age and playing standards, and to discriminate between players without (“unidentified”) or with (“identified”) a direct route to professional football through their existing club pathway. Three-hundred-and-seventy-three Scottish youth soccer players (U11–U17) from three different playing standards (amateur, development, performance) completed a battery of commonly used generic field-based fitness tests (grip dynamometry, standing broad jump, countermovement vertical jump, 505 (505COD) and T-Drill (T-Test) change of direction and 10/20 m sprint tests) on two separate occasions within 7–14?days. The majority of field-based fitness tests selected within this study proved to be reliable measures of physical performance (ICC?=?0.83–0.97; p?p?2 (7)?=?101.646, p?相似文献   

人工湿地植物的选择驯化研究综述

在查阅有关人工湿地植物的选择文献的基础上,总结出植物在人工湿地中的作用和选择人工湿地植物的一般原则。并指出筛选与驯化人工湿地植物的思路及理论依据,为构建人工湿地、选择合适的人工漫地植物提供参考与帮助。     

一类广义Feistel密码的线性分析

针对一类广义Feistel密码提出一种求取密码线性偏差上界的方法.该分析方法的思路是,首先对密码体制线性偏差进行严格的数学描述,分别给出密码线性偏差与轮函数F及S盒的线性偏差的数学关系;然后确定密码线性偏差的上界.利用该方法给出了 32轮以内各轮的线性偏差上界