An Ethnographic Study of the Computational Strategies of a Group of Young Street Vendors in Beirut

This study examines the computational strategies of ten young street vendors in Beirut by describing, comparing, and analyzing the computational strategies used in solving three types of problems in two settings: transactions in the workplace, word problems, and computation exercises in a school-like setting. The results indicate that vendors' use of semantically-based mental computational strategies was more predominant in transactions and word problems than in computation exercises whereas written school-like computational strategies were used more frequently in computation exercises than in word problems and transactions. There was clear evidence of more effective use of logico-mathematical properties in transactions and word problems than in computation exercises. Moreover, the success rate associated with each of transactions and word problems was much higher than that associated with computation exercises.This revised version was published online in September 2005 with corrections to the Cover Date.     

非政府组织在天文学科普方面的作用

古代伊朗科学家曾对科学,特别是天文学做出过重大贡献。当代的伊朗科学家继承了这一传统,并致力于向公众传播科学。21世纪初,由一批科学家、热心科学传播的社会人士和私营企业组成的非政府组织积极筹建马什哈德天文馆、科学中心等科普场馆。本文通过这一案例,讨论了非政府组织在科普场馆建设和科学传播中的作用、问题和可行性,并介绍了马什哈德天文学会为此采取的相应对策。     

Defining mission statements in higher education: Towards a genre perspective

Mission statements provide educational institutions with the legitimacy to market and promote services through positive statements. This study applied genre analysis to examine the function of promotional rhetoric in top 100 international universities' mission statements. Bhatia's rhetorical moves of promotional genre was triangulated with Pearce and David's components for mission-writing. It was seen that international universities rely on promotional rhetorical moves to articulate their self-concept and services. Moreover, universities actively compete against each other to secure a high position in the international ranking lists. This ensures that they obtain additional incentives that help them gain economic stability and build a reputation. Promotional genre has become a practiced culture in the professional discourse community of higher education. Hence, there is a need to allow mission statements genre membership. We suggested a genre model that can be taught and used for writing mission statements. The most recurrent moves employed suggest that the communicative purpose for mission-writing used by international universities is to target the international market and build a public image to reel in more students, thereby improving their financial status while ensuring a good reputation. Based on this study, institutions can get guidance on designing and drafting effective mission statements.