High pressure research on materials

In this article, different methods for generating and measuring high pressure are described. Empirical equations of state (EOS) are illustrated for some standard materials. P Ch Sahu (left) is at the Materials Science Division of Indira Gandhi Centre for Atomic Research, Kalpakkam. He is a specialist in the field of high pressure science and is presently heading this activity at his institute. His primary research areas are in high pressure phase transitions and in synthesis and study of novel materials under extreme pressure and temperature conditions.     

Screen design for children’s reading: some key issues

This paper draws attention to design issues that are likely to affect the way that children interact with screen‐based information texts. It is based on the findings of the Interactive Multimedia in Primary Schools (IMPS) project funded by the British Library, carried out at The University of Reading. The paper summarises the design‐related aspects of the project, highlighting those issues that relate to access, navigation and typography. It draws together observations from teachers and children based on tape‐recorded interviews and video recordings, and research from the fields of human computer interaction, information design and education.     

A Planning Tool for Incorporating Backward Design,Active Learning,and Authentic Assessment in the College Classroom

Backward course design is a compelling strategy for achieving results-based, student-centered learning. The backward course-design approach is first to identify student-learning outcomes, then the means of assessing the outcomes, and lastly the classroom activities that would support the learning outcomes. With demonstrated success at improving teaching and learning at K–12 levels, this design approach is receiving increasing attention at the college level. Yet college faculty, who receive comparatively little instruction in course design, may find it challenging to enact the principles of backward course design into day-to-day lecture planning. To help address this challenge, we developed a backward design-inspired lesson planner to assist in restructuring college course periods for more active, learner-centered activities that align with course goals. We describe the planner and its application to a non-majors college biology class, and we share student and instructor perceptions of classroom structure and use of classroom time before and after implementation. Benefits of implementing the backward design planner included enhanced ability to prioritize content delivery to students, better time management in and out of the classroom, improved experience of lecture preparation, more engaged students, and more frequent feedback on student comprehension.     

Supporting Disability Education through a Combination of Special Schools and Disability-Inclusive Schools in the Pacific Islands

This article reports on a multi-method study of the ways in which special and mainstream schools support the educational needs of children with disabilities in Fiji. The aims of the study were: (1) to identify capacity and functions of special schools to support inclusive mainstream schools for children with disabilities; and (2) to explore the capacity of mainstream disability-inclusive schools in meeting the needs of children with disabilities. Results from the special education survey indicated that type of disability, geographic location and controlling authority were associated with transition to mainstream education. Findings from the action research study suggest that supportive school leadership and positive attitudes towards disability and inclusion contribute to greater mobilisation of supporting resources. However, limitations in facilities and resources currently pose barriers which prevent inclusion for all students with disabilities. Together, these findings indicate that special and inclusive mainstream schools jointly support disability-inclusive education in Fiji.     

Multirelational semantic maps

Research on multirelational semantic maps is laden with promise for educational applications, but the development of knowledge mapping systems has been largely unsystematic. This paper describes the distinctive features of knowledge maps, discusses their origins, and explores some of the strengths and weaknesses of the wide variety of maps and mapping approaches that have been appearing in the literature over the past several years. Research findings pertaining to maps' potential and actual uses in educational settings are summarized, with some indepth attention to the more programmatic efforts of Novak as well as to our own mapping system. Suggestions are made for future exploration of, and experimentation on, maps as unique tools for organizing, representing, and communicating a wide variety of knowledge domains.     

Type-2 diabetes related intermediate phenotypic traits in north Indian diabetics

Asian Indians are known to be at a higher risk of developing T2DM, but the underlying genetic factor in this population is still not well understood. T2DM is a complex genetic trait and assessment of disease related intermediate phenotypic traits is an important initial step towards any systematic genomic study. Therefore, in the present study we have assessed diabetes related intermediate phenotypic traits of insulin secretion and insulin resistance in the patients belonging to this population. The study included 157 T2DM patients of either sex ranging in age from 45–80 years and 84 non-diabetic subjects with no family history of diabetes, ranging in age from 45 to 75 years served as controls. Intermediate phenotypic traits studied were BMI, W: H ratio, fasting free fatty acid level and Insulin resistance and secretion. Diabetics were found to have significantly higher W: H ratio (p<0.001), FFA (p<0.001) and HOMA-R (p<0.001) as compared to non-diabetics. However, there was no significant difference in their BMI and HOMA-β. There was a positive correlation between FFA level and HOMA-R among diabetics, but not among controls. These findings suggest that in abdominal obesity FFA mediated insulin resistance is an important causative factor underlying T2DM in this population. Moreover, comparable HOMA-β in diabetics reflects compensatory insulin hyper secretion in these subjects. There is a need to examine relative contribution and precise nature of genetic factor in their tendency for central obesity, free fatty acidemia and insulin resistance.