基于敏捷开发的企业管理系统模板设计与应用

为节约管理系统开发成本、缩短系统开发时间,基于 J2EE 进行企业管理模板开发。模板前后端分离开发,后端以 Spring Boot 为核心架构,开启二级缓存;前端采用 Vue.js、Element-UI 模板引擎框架,使用椭圆曲线加密（ECC）保证数据传输安全,并采用 Redis 为二级缓存,MySQL 为持久化数据库,使系统对数据的访问变得高效且灵活,通过 Git 和 Jenkins 实现项目的持续集成与部署。实际开发测试结果表明,该模板可直接使用,普遍缩短了开发时间（20~30 天）,并有效节约了开发成本。模板具备可维护性与可扩展性,使用敏捷开发方式让开发者与甲方能够及时沟通,从而对开发作出及时调整,因此可广泛应用于实际系统开发中。     

移动数字科普乐园的全景漫游

当今数字（虚拟）科技馆的发展正方兴未艾。目前,大多数虚拟科技馆也均构建在PC或者网络上。然而,随着手机的日益普及和广泛使用,在手机上构建虚拟科技馆更显得意义重大。本文基于J2ME（Java 2 Micro Edition）技术平台,在手机上设计并实现了全景图片的虚拟漫游算法,并基于此项技术开发了一个数字科普乐园全景漫游的原型系统。最后,对数字科普乐园的手机浏览与导航系统的研制进行了展望。     

基于现代网络技术的高校课堂教学质量评估系统的设计与实现

课堂教学评估是当前高校教学管理和教学质量监控的重要手段之一.其目的是以评促改,以评促建,不断提高办学水平和教学质量.为了更好地开展教师课堂教学评估,需要结合计算机网络技术建立电子信息评估系统.利用先进的评估手段及时反馈,充分发挥评估结果的作用.本文介绍一个基于现代网络技术的高校课堂教学质量评估系统的设计和实现.     

高校学生管理系统新型模式的研发与探究

学生管理系统是高校信息化发展的一个必备系统之一,高校的校园网平台的建立,为学生管理系统提供了基本的硬件平台,以B/S为主的信息化软件平台是当前的大势所趋,J2EE体系结构提供中间层集成框架用来满足无需太多费用而又需要高可用性、高可靠性以及可扩展性的应用的需求.     

基于J2EE和Flex技术图形化群组讨论

J2EE+Flex模式应用开发是当前的网络应用发展趋势,同时图形化聊天工具也是当前市场上的一块功能空白。基于J2EE+Flex模式,依靠Flex强大的GUI功能、AMF对J2EE兼容的框架的便捷通信服务,以及高效的XML编、解操作来实现B/S模式的图形化群组讨论的功能。     

Measuring the earnings returns to lifelong learning in the UK

This paper examines the earnings returns to learning that takes place following the conventional ‘school-to-work’ stage of the life-course. We operationalise such ‘lifelong learning’ as the attainment of certified qualifications in adulthood, following the completion of the first period of continuous full-time education. Using data from the British Household Panel Survey (BHPS) for the period 1991–2006, our approach and findings represent an important addition to the existing evidence base. By using annual data, we are able to employ the fixed effects estimator, which eliminates the problem of time-invariant unobserved heterogeneity. Our dynamic specification uses a lag structure to consider how earnings returns evolve in the medium and longer run, whilst also controlling for wage trends which were evident prior to qualification attainment. Our results show a medium-run return for women of 10% on hourly wages. For men, initial suggestions of a similar positive return are eliminated once pre-qualification trends are taken into account. This suggests that adult learning has a causal effect on women's subsequent earnings but, for men, any apparent gain is due to selection.     

Pennies from heaven? Using exogenous tax variation to identify effects of school resources on pupil achievement

Evidence on the effectiveness of school inputs remains inconclusive, partly due to the challenge of identification as families sort themselves into school districts and resources are potentially allocated to compensate (or reinforce) differences in pupil abilities. Using variation in school resources induced by the location of waterfalls in Norway, we examine the effect of school expenditures on pupil performance at age 16. Higher school expenditures, triggered by higher revenues from local taxes on hydropower plants, have a significantly positive effect on pupil performance. This positive IV estimate contrasts a zero effect based on least squares. A downward biased estimate using a standard cross section estimator is expected in a context of compensating resource allocation across educational units.     

Diversifying the faculty across gender lines: Do trustees and administrators matter?

Our paper focuses on the role that the gender composition of the leaders of American colleges and universities - trustees, presidents, and provosts - play in influencing the rate at which academic institutions diversify their faculty across gender lines. Our analyses make use of institutional level panel data that we have collected for a large sample of American academic institutions.     

Inequality of opportunity for educational achievement in Latin America: Evidence from PISA 2006–2009

We evaluate how far away six Latin American countries stand from a normative goal of equality of opportunity for educational achievement in PISA 2006–2009. We work with alternative characterizations of types: gender, school type (public or private), parental education, and their combinations. Following Checchi–Peragine's (2010) non-parametric method, we find that inequality of opportunity for educational achievement in Latin America ranges from less than 1% to up to 25%, depending on the year, the country, the subject and the specification of circumstances. These magnitudes are substantial with respect to what is found in comparator countries. Parental education and school type prove to be important sources of inequality of opportunity, contrary to gender. By means of sensitivity analyses, while most results show small to moderate variation in terms of magnitudes, in ordinal terms (rankings) they remain quite stable. Brazil stands out as the most opportunity-unequal country of the sample.     

从魔幻世界到现实社会——哈利波特系列小说价值观浅析

在《哈利波特》系列小说中,J.K·罗琳借用一个魔幻世界,来讲述一个＂人＂的故事。而在这个魔幻世界的故事里,作者真情流露出了她对真、善、美的追求和对邪、恶、丑的憎恨,让读者看到了她所拥有的价值观。本文将通过分析小说主人公哈利波特的成长经历,探讨小说中所蕴涵的价值观及其对青少年的影响和启示。