浅谈下一代互联网协议IPv6

随着Internet的飞速发展,IPv4的缺陷逐渐凸现。针对这个问题,文章介绍了IPv6产生的背景以及IPv6的新特性,同时阐述了从现有的IPv4网络过渡到IPv6的策略。     

Transition to formal schooling: Do transition practices matter for academic performance?

This study examined whether the transition practices implemented in preschool-elementary school pairs contribute to children's academic development during the first year of elementary school. Participants were 398 children who moved from 36 preschools to 22 elementary schools in two Finnish towns. Children were tested in respect to their reading, writing, and math skills in the preschool spring and in the grade 1 spring. The most common practices reported by preschool teachers were discussions about the school entrants and familiarizing preschool children with the school environment and the new teacher. Multilevel latent growth modeling showed that the more the preschool teachers and elementary-school teachers implemented various supportive activities during the preschool year, the faster the children's skills developed from preschool to grade 1 spring. Co-operation over curricula and passing on written information about children between the preschool and the elementary school were the best predictors of the children's skills, although they were the least commonly used practices. The need to restructure the transition to elementary school and the use of multiprofessional resources are discussed.     

White working class achievement: an ethnographic study of barriers to learning in schools

This study aims to examine the key barriers to learning to raise achievement of White British pupils with low‐income backgrounds. The main findings suggest that the worryingly low‐achievement levels of many White working class pupils have been masked by the middle class success in the English school system and government statistics that fail to distinguish the White British ethnic group by social background. The empirical data confirm that one of the biggest groups of underachievers is the White British working class and their outcomes at each key stage are considerably below those achieved by all other ethnic groups. One of the main reasons for pupil underachievement, identified in the case study schools and focus groups, is parental low aspirations of their children’s education and social deprivation. It is also perpetuated by factors such as low‐literacy levels, feelings of marginalisation within the community exacerbated by housing allocation, a lack of community and school engagement, low levels of parental engagement and lack of targeted support to break the cycle of poverty and disadvantage, a legacy of low aspiration that prevents pupils from fulfilling their potential across a range of areas. The study concludes that the main obstacle in raising achievement is the government’s failure to recognise that this group has particular needs that are not being met by the school system. The government needs to recognise that the underachievement of White British working class pupils is not only a problem facing educational services but profoundly a serious challenge. Policy implications and recommendations are discussed in the final section.     

大学英语听力理解中的障碍与对策

笔者依据自己四年大学英语听力教学经验,从提高英语实际应用能力出发,探讨了学生在听力理解中存在的障碍,并提出提高听力理解的对策,进而为帮助学生克服这些障碍提出相关对策,以求真正提高学生英语应用能力。     

传媒体制、媒体社会责任与公共利益——基于美国广播电视体制变迁的反思

本文在梳理美国广播电视体制历史变迁的基础上,分析公共利益在不同的规制模式下的差异化呈现,剖析公共利益与传媒体制之间的关系,进而探究商业化运作背景下实现和确保公共利益的有效路径。     

新媒介生态下的香港报业转型研究

在互联网引发的新媒介生态下,香港报业呈现出两种转型模式:一是以星岛新闻集团为代表的免费内容与规模效益模式:免费报通过对收费报新闻的再加工,降低采编成本,实现规模效益。二是以壹传媒有限公司为代表的产品深加工与免费增值模式:大部分新闻产品实行免费以增加人气,少部分深加工的新媒体内容微收费,以实现盈利。香港报业转型中遭遇的最根本的困境在于,高成本生产的新媒体产品难以盈利。免费成为新媒介生态下唯一的内容生存之道。     

中英商业银行服务创新的比较分析:基于创新障碍数据

针对英国CIS4调查中商业银行数据,和我们进行的浙江商业银行服务创新调查的数据,对两国商业银行服务创新进行比较分析.比较主要基于创新的障碍因素,包括市场因素、规制因素、成本因素、知识因素等;对其结果结合背景信息加以具体分析.结论是,作为一个年轻的金融市场,中国商业银行在市场风险、知识因素方面存在更高的障碍,而在市场竞争、成本因素方面面对的障碍则低于英国同行.因此,应不断提升规制水平、完善国有商业银行治理水平、以及通过创新人才培养建立服务创新能力.     

西部企业发展的总体状况及其制约因素分析

从企业的规模总量、结构和效益三个方面进行比较分析,我国西部企业均与其他地区存在着较大差距。本文认为西部企业在发展中的内部障碍因素主要是企业开放度不足、企业融资困难、企业创新能力不足．外部障碍因素主要是宏观战略引领性不足、商务成本过高、产业集中度低。     

LaFe11.0 Co0.9 Si1.1 B0.2化合物负膨胀研究

利用电弧炉熔炼法制备了LaFe11Co0.9Si1.1B0.2化合物.扫描电镜和能量色散谱仪分析得该化合物主相为NaZn13相,还含有少量的富镧相和富铁相.X-射线衍射仪测量发现,该化合物在居里温度附近的衍射峰随着温度的升高向大角度偏移,分析软件分析并计算得到该化合物在居里温度附近具有明显的负膨胀现象.     

翻转课堂教学模式在我国应用的障碍及其对策

翻转课堂教学模式是一种新兴的教学模式,由于其独特的教育理念和教学效果曾被誉为2011年影响课堂教学的重大技术变革,在美国已经发展得相当成熟,并被广泛应用,但翻转课堂教学模式在我国的应用还存在很多障碍。目前,如何应对这些障碍以保证翻转课堂在我国的顺利实行是我们要着力解决的问题之一。