一种扩展的G′/G展开法应用于(2+1)维Boussinesq方程(英文)

利用扩展的G′/G展开法得到了(2+1)维Boussinesq方程的新的行波解.应用该方法获得了由双曲函数和三角函数所表示的含有参数的显示精确解,并且当参数取特殊值时,可以通过双曲函数解得到新的孤波解.     

基于群对群传输的计算架构

群对群（G2G）计算是一种基于G2G网络的分布式计算。由群所组成且涉及群与群关系的网络称为G2G网络,群是一些具有相同属性节点的聚合。G2G计算定义了4种基本运算：传递（Transfer）,交换（Exchange）,节点处理（NodeProcess）和变形（Transmute）。用4种基本运算可以搭建不同的G2G计算。G2G计算得益于灵活的分群,相同属性或任务的群内计算,以及群对群的多对多连接。G2G计算还具有灵活的体系结构。G2G计算是灵活,方便和有效的分布式计算。     

例谈城市规划中的增温设计——以合肥市为例

本文从日常生活实例入手,立足人地关系,强调当前城市的人地关系中人类所处的主导地位,及其所带来的负面影响。文中以合肥市为例提出的城市组团间留足空间、城市绿化应更重视乔木以及尽可能保留城市湿地和通风道等观点．是基于建设生态城市的目标,对正处于城市化快速发展阶段的我国其他地区有一定的借鉴和参考价值。     

How patenting informs VC investors – The case of biotechnology

In the presence of asymmetric information, economic agents need to communicate their quality to investors and other parties. This paper investigates how information generated during the patenting process affects the ability of new ventures to attract VC financing. While much of the literature on information asymmetries focuses on patent applications, we argue that the entire examination process should be considered, including information that emerges in the course of patent examination and review. We test several hypotheses using a sample of British and German companies that seek venture capital. We find that the filing of patent applications is positively related to VC financing. Moreover, the examination process at the patent office generates valuable technological and commercial information via search reports, citations and opposition procedures which affect the likelihood of VC financing. Our results suggest that the patenting process supports investors in updating their expectations regarding the quality of new ventures.     

Are patents signals for the IPO market? An EU–US comparison for the software industry

This study investigates empirically whether patents can be signals to financial markets, thus reducing problems of asymmetric information. In particular we study how patenting behaviour impacts on the way investors perceive software firms’ growth potential through an increase in the amount invested at the initial public offering (IPO) of firms in the US and Europe. This study performs regressions on the relationship of patent applications before IPO and the amount of money collected at the IPO, while controlling other factors that may influence IPO performance. We also attempt to account for a potential source of endogeneity problems that can arise for self-selection bias and simultaneity between the number of patent applications prior to going public and the amount of money collected at IPO. We find significant and robust positive correlations between patent applications and IPO performance. The signalling power of patenting is significantly different for US and European companies, and is related to the difficulty in obtaining a signal and its scarcity. An additional patent application prior to IPO increases IPO proceeds by about 0.507% and 1.13% for US and European companies, respectively. Results suggest that a less ‘applicant friendly’ patenting system increases the credibility of patents as signals and their value for IPO investors.     

Teacher Education and the Integration of Technology: a reading and language arts perspective

ABSTRACT

Teachers are increasingly expected to employ integrated technology practices in their classrooms to help students learn more, better, faster and cheaper. Unfortunately, teachers generally have not been provided education or training on how to employ these technology practices. Attempting to get integrated technology practices into pre‐service and in‐service teacher education, especially in reading and language arts, is at the core of this article. An overview of technology integration is provided along with discussions about: (a) goals and content for teacher education courses or training, (b) research on integrating technology into reading and language arts education, (c) integration without education and training, and finally (d) issues that affect integration.     

基于3G网络的移动式英语学习效果实证研究

基于手机3G网络开展学习实验,综合运用体验研究、问卷调查和质性访谈法,较全面地了解基于3G网络的移动式英语学习效果、实施方式和应用情境,以及学生对利用3G网络开展移动学习的态度和看法等.研究表明：基于3G的英语移动式学习效果良好;学生对开展3G网络移动式英语学习非常认可.“在线交流与更新、离线学习”是进行移动式英语学习的主要方式.“查询、学习和交流”是利用3G网络开展英语移动学习的核心功能需求.     

基于Android的地震目录在Google Map中的研究

分析了通过手机查询地震目录,获取地震目录详细信息,在手机浏览器上显示地震相关信息的关键技术、流程图、代码及实现方法．     

An investigation into the move towards electronic journals: a case study of NHS libraries in Kent,Surrey and Sussex

Electronic journals are so embedded into practice in academic libraries that it is easy to forget that this is not the case everywhere. In NHS libraries, for example, the staff face a particular set of issues. This article is based on Rebecca England's dissertation on this topic, completed as part of the MSc Econ course in Information and Library studies at Aberystwyth University. Rebecca is E‐resources Librarian at the Maidstone and Tunbridge Wells NHS Trust. She investigated the momentum towards electronic journals in NHS libraries in the Kent, Surrey and Sussex region and the potential for a regional purchasing consortium. AM     

Reflexiones en torno al bilingüismo y la enseñanza bilingüe

Resumen

El artículo revisa los estudios más importantes que se han realizado sobre el bilingüismo, enfatizando la discusión sobre el “principio” de enseñanza mediante la lengua materna o primera lengua del niño. Tras una revisión de las distintas clasificaciones sobre la enseñanza bilingüe y adoptando la hipótesis de “Desarrollo Interdependiente” y la hipótesis del “Umbral”, se proponen distintos criterios para abordar una enseñanza bilingüe enriquecedora. El artículo finaliza sugiriendo distintas aproximaciones a la enseñanza bilingüe en el Estado español.