国际共产主义运动史上的里程碑--论中国共产党第十六次代表大会的历史地位

中国共产党第十六次代表大会引起了国际国内的广泛关注 ,其重要意义和深刻影响是不言而喻的。这次大会在中国共产党和国际共产主义运动的发展历史上都具有重要的历史地位 ,它不仅是中国共产党历史上的里程碑 ,更是国际共产主义运动史上的里程碑     

山东省青少年男子运动员16PF初步常模标定及人格特点分析

运用Cattell-16PF人格因素量表,对山东省421名青少年男子运动员进行测试.结果显示:1)山东省青少年运动员与全国中学生常模比较,在16种人格因素中有三种差异非常显著(P<0.01)、5种差异显著(P<0.05);2)不同种类运动项目的运动员人格因素存在差异;3)同一种类项目的运动员人格因素存在差异,运动员的人格特征与运动成绩有着密切关系.     

PCR-DGGE技术分析孤独症家庭成员肠道菌群结构

目的应用PCR-DGGE（denaturing gradient gel electrophoresis,变性梯度凝胶电泳）技术对孤独症家庭成员肠道微生物菌群结构进行研究.材料和方法提取粪便细菌总基因组DNA,PCR扩增细菌16S rDNA基因V3可变区,DGGE方法检测PCR产物.结果建立了孤独症家庭成员肠道菌群组成的DGGE指纹图谱,分析结果显示孤独症儿童肠道菌群结构的相似度为0.42-0.65,家庭内孤独症儿童与父母之间的相似度为0.42-0.68.结论 PCR-DGGE技术是一种快速有效的用于分析研究人体肠道菌群结构的技术.孤独症儿童肠道菌群结构与父母的相似度较高,提示生活环境对肠道菌群的组成有影响.     

基于ATmega16的工业以太网网关设计

介绍了目前工业现场大量存在的串口设备接入工业以太网的几种实现方案,分析了各自的特点,并提出了以8位AVK微控制器ATmega16为控制核心,RTL8019AS为网络控制芯片,采用简化TCP/IP协议栈的工业以太网网关的设计方法.同时,给出了以AIBUS协议为平台的应用层实现的实例.     

AVR单片机SPI双机通讯

叙述了AVR单片机SPI双机通讯的端口连接,控制寄存器SPCR的设置,并给出了实用的示例程序.     

The role of the Connexions service in supporting the transition from school to post-16 education, employment training and work for young people with a history of specific speech and language difficulties or learning difficulties

The transition from school to the world of post-compulsory education is a major landmark in the lives of young people with special educational needs (SEN). In England the Connexions service set up to support young people during transition was planned to provide both a universal service and one that provided special support to vulnerable young people, particularly those at risk of not being in education, employment or training (NEET). The present paper reports the findings of a study of 46 Connexions personal advisers (PAs) who were supporting young people with specific speech and language difficulties (SSLD) or general learning difficulties, as part of a longitudinal study of these young people's development. Interviews were held with the PAs to identify patterns of organisation, the nature of services delivered to these young people and the factors that influenced successful support. The findings highlight the diversity among Connexions services, the limited expertise with young people with SEN and the structural barriers that may limit effectiveness. In addition, the Assessment, Planning, Implementation and Review Framework was not consistently used. The Connexions service has the potential to provide important support to young people with SEN at this key transition point but our study indicates the need for modifications to its operation.     

Unfallversicherungsschutz und Haftung an Fachhochschulen

Wie bei den Universitäten stellt sich auch für die Fachhochschulen die Frage, ob und inwieweit den Träger eine zivilrechtliche Haftung treffen kann. Machen Studenten oder Dienstnehmer und freie Dienstnehmer Personenschäden geltend, wird der Schutz der gesetzlichen Unfallversicherung und das im SV-Recht geregelte Haftungsprivileg des Dienstgebers von Bedeutung.     

The role of educational choice in occupational gender segregation: Evidence from Trinidad and Tobago

We analyse the role of educational choice on the degree of occupational segregation in Trinidad and Tobago during a period in which educational policies intent on equating gender opportunities in education were implemented. To this end we utilize waves of the Trinidad and Tobago labour force survey over the period 1991–2004. Our results show that while educational segregation has fallen substantially over our sample period, this has not translated into less occupational segregation. This suggests that the educational policy has not been sufficient to combat occupational segregation. However, results at a more disaggregated level show that experiences have been heterogeneous across educational and occupational groups.     

The mythical ‘boy crisis’?

The popular press has put forth the idea that the US educational system is experiencing a “boy crisis,” where boys are losing ground to girls across multiple dimensions. Here, we analyze these claims in the context of math and reading achievement during early primary school. We reach two conclusions. First, white boys outperform white girls in math across virtually the entire distribution by the end of third grade; there is less evidence for other races. Second, boys lag behind girls in reading at the start of kindergarten and at the end of third grade across all races, but only the lowest-achieving boys lose ground over the first 4 years; boys gain ground between first and third grades.     

循环冗余编码算法及实现

差错控制编码理论是现代通信的一个重要理论范畴并在实际中有广泛的应用.较为详细分析了循环码编码、解码、检错及纠错原理、性能特点、应用领域等内容.最后给出微控制系统中常用的CRC算法实例以作参考.