Received by the editors November 7, 1989. 1980 Mathematics Subject Classification (1985 Revision). Primary 53A10,57M99. The first author was supported by the National Science Foundation grant DMS8701736, and the second author, by research grant DE-FG02-86ER250125 of the Applied Mathematical Science subprogram of the Office of Energy Research, U.S. Department of Energy, and National Science Foun...

In this editorial, we have highlighted key research opportunities and challenges in four topical themes for indoor chemistry: human occupants as agents influencing indoor chemistry; oxidative chemistry; surface phenomena; and semivolatile organic compounds. In each case, enough prior work has been done to demonstrate the importance of the theme and to create a foundation for future studies. Ext...

Research regarding the teaching of reading for English as a Foreign Language (EFL) and English as a Second Language (ESL) is still ongoing. This study focused on metacognitive reading strategies for these learners, first revisiting the concept of metacognition as proposed by Flavell, and then going on to explain reading strategies that require metacognitive skills within three knowledge dimensi...

Little attention has been paid to the problems about portfolio keeping in English as a foreign language (EFL) writing, while the existing literature mostly focuses on the effects of portfolios on writing skills of learners, rather than those of teachers or pre-service teachers. This study aims to investigate the problems encountered and contributions of portfolios to the language skills of EFL ...

The objectives of the present study were threefold: (1) the effects of training in /r/-/l/ perceptual identification on /r/-/l/ production; (2) the effects of training in /r/-/l/ production on /r/-/l/ perceptual identification; and (3) the effects of perceptual and production training on learners’ motivation to study English. Results indicate that both the perceptual and the production training...

This study attempts to explore the effects of formal schemata or rhetorical patterns on reading comprehension through detailed analysis of a case study of 45 non-English majors from X University. The subjects were selected from three classes of comparable English level and were divided into three groups. Each group was asked to recall the text and finish a cloze test after reading one of three ...