数据库的发布

当前，数据库技术在Internet／Intranet条件下发生了巨大的变化，数据库的网络应用和实现方式也在飞速发展。从传统的发布技术，到现在的B／S（Browser／Server）结构，再到新兴的自动发布技术，web数据库发布技术在逐步走向成熟。     

坚持和完善党政联席会议制度 发挥高校院（系）级党组织政治核心作用的思考

院（系）级党组织是教育和团结本单位广大师生员工的政治核心,在学校党组织结构中处于承上启下的关键位置。新修订的高校基层组织工作条例,首次把党政联席会议制度确立为院（系）的工作机制和决策方式。当前,有些高校在落实党政联席会议制度时,还存在着一些问题。因此,必须建立健全党政联席会议的议事决策机制,进一步健全和完善党政联席会议制度,保证院（系）级党组织的政治核心,保证监督作用的有效发挥。     

Editorial

This study reports data on the challenges and needs of girls engaged in delinquent behaviour and the effectiveness of services provided by a girls' home. Implications and suggestions for the planning and implementation of effective programmes and services in alternative educational settings are included. It concludes that alternative education is not just a change of educational environment for youths in trouble, an understanding of the unique needs of girls and female offenders must be translated into practice as educators continue to find solutions for helping girls who are engaging in risky or delinquent behaviours.     

Dimensions of Socio-economic Status and their Relationship to Mathematics and Science Achievement at Individual and Collective Levels

Applying two-level structural equation modelling techniques, the current study examined the dimensionality of socio-economic status (SES) and its relationship with mathematics and science performance at student and school levels. Data were drawn from population 2 (13-year-olds) of 17 countries in the Third International Mathematics and Science study (TIMSS). A set of items about the ownership of household materials was used to measure the dimensions of SES. For most of the countries, a general economic dimension and a cultural dimension were identified at the student level. The cultural dimension had the greatest impact on students' mathematics and science achievement. At the school level, however, only a general economic dimension was found in most countries. This dimension was interpreted to represent community wealth. It was found to be highly related to school mean maths-science achievement, except for the countries where an additional cultural dimension is identified. This cultural dimension can be interpreted as the community cultural resources and atmosphere, and is strongly related to average school mathematics and science achievement. The current study confirmed that the ownership of a set of household materials can be used as SES indicators in exploring its multifaceted feature at both individual and school levels. A similar model structure is found in different countries by applying these indicators, despite the fact that the content of the set of household possessions is different. The findings show that the latent structure of SES at individual level is different from that at the school level, and that SES dimensions have different effects on mathematics and science achievement at individual and school levels.     

基于网络的教务管理系统的设计与实现

基于网络的教务教学管理是21世纪教务教学管理的发展方向.采用B/S结构的开发模式,可安全、有效地对网络化教务教学管理信息系统进行设计和实现.实践证明,它能够方便地协调好教师、学生、教室三者的关系,使资源达到最大化的利用.     

Recollections of sexual socialisation among marginalised heterosexual black men

This paper describes the sexual socialisation process of marginalised, drug-using heterosexual black men, focusing primarily on the sources and content of sexual information. Analysing qualitative interview data, we discovered that the men in our sample both learn about sex and become sexually active at an early age. They most often learn about sex from the media and least often learn about sex from family members. The content of sexual information varies in specifics, but overall tends to equate sex with pleasure, encourage sexual activity with multiple partners and emphasise using protection. Our goal is to use this data to better understand how sexual socialisation contributes to the prevalence of multiple sexual partners and high rates of HIV among heterosexual black men in order to inform future risk-reduction intervention programmes.     

现代电源技术实验平台研制

为构建完整的电力电子技术中使用各种电力电子器件进行功率变换的知识体系,研制了现代电源技术综合实验平台,其包括单端隔离型高频开关电源实验、隔离型桥式DC/DC实验和变频调速实验3个实验。对3个实验的核心控制电路进行了详细介绍,并给出对应的工作波形。该实验平台可满足电气工程高年级本科生、研究生实验的要求,同时也可给相关教师提供功率变换的科研平台。     

利用网络协议分析器分析TCP/IP协议

本文简单探讨了tcp／ip协议，并利用网络协议分析器对Ieternet网络中数据包实例进行了解析。     

A／D转换技术及其在电力生产中的应用

A／D转换器是电力系统微机保护电路、RTU模拟量遥测信息采集电路中的关键部件。并行比较型、逐次逼近型、双积分型A／D转换方案的转换电路不同．它们的主要技术指标、适用场合也有所差别。目前。在电力系统微机保护电路、模拟量遥测信息采集电路中采用的A／D转换芯片主要是AD574。     

论政府采购法的性质及作用

现代国家建立政府采购制度，旨在加强对政府财政的支出管理，节约财政资金。提高使用效益，随着经济发展，也越来越成为政府进行宏观调控的有力举措，对国家的宏观经济发挥着重要作用。而且，政府采购法律制度是一个系统工程，需要从经济法的角度去理解它的性质和作用，将其定位于宏观调控法更为适宜。