SVC bitstream adaptation in MPEG-21 multimedia framework     

THANG Truong Cong  KIM Young Suk  RO Yong Man  KANG Jungwon  KIM Jae-Gon 《浙江大学学报(A卷英文版)》2006,7(5):764-772

INTRODUCTION Scalable video coding (SVC) (Schwarz et al., 2004) is the most promising video format for appli- cations of collaborative communication. First, SVC format, which is extended from the latest advanced video coding (AVC), is appropriate for creating a wide variety of bitrates with high compression effi- ciency. Second, an original SVC bitstream can be easily truncated in different ways to meet various characteristics and variations of devices and connec- tions. The scalabil…  相似文献   

Living in space: A preschool aerospace curriculum     

Young Astronaut Council 《Early Childhood Education Journal》1990,17(3):27-33

Outer space is a topic that is relevant to our future, promotes a universal sense of wonder and reinforces the idea that we all share one planet. Early childhood teachers, parents, grandparents and children all find the subject of outer space exploration fascinating. Space exploration weaves together all aspects of our experience and generates an enthusiasm to learn more. Space adventure also creates a new hero system for our children. Achievements and success are based on knowledge, skill and dedication to a common cause: the betterment of life for all people.  相似文献   

Expression and Reception: An Analytic Method for Assessing Message Production and Consumption in CMC     

Kang Namkoong  Dhavan V. Shah  Bryan McLaughlin  Ming-Yuan Chih  Tae Joon Moon  Shawnika Hull 《Communication methods and measures》2017,11(3):153-172

This article presents an innovative methodology to study computer-mediated communication (CMC), which allows analysis of the multi-layered effects of online expression and reception. The methodology is demonstrated by combining the following three data sets collected from a widely tested eHealth system, the Comprehensive Health Enhancement Support System (CHESS): (1) a flexible and precise computer-aided content analysis; (2) a record of individual message posting and reading; and (3) longitudinal survey data. Further, this article discusses how the resulting data can be applied to online social network analysis and demonstrates how to construct two distinct types of online social networks—open and targeted communication networks—for different types of content embedded in social networks.  相似文献   

Casting the assessment net wide: Capturing all student learning     

Laura J. Getty  Denise Y. Young  Laura D. Whitaker‐Lea 《About Campus》2008,13(2):10-16

North Georgia College and State University has joined a national effort to move away from the isolated approach to measuring student learning. Educators from three divisions offer their perspectives.  相似文献   

Autonomy of Artistic Expression for Adult Learners with Disabilities     

Graham C. Young 《The International Journal of Art & Design Education》2008,27(2):116-123

When an art tutor adopts the role of assistant to a disabled artist it is difficult not to move from helping with the physical handling of materials on the one hand into the actual creative process on the other, thus influencing how the artwork looks. Ecas is an Edinburgh‐based charity which promotes opportunities for physically disabled people to be self‐fulfilled and to participate in all aspects of society. They run, among other things, traditional art classes and computer classes. The use of computer technology (CT) in art seemed to offer the chance for self‐fulfilment for disabled artists by increasing control over artistic choices and providing for self expression with only minimal assistance required from others. Ecas decided to fund a research project in the form of a ten‐week pilot course and the data collected during the trial confirmed these possibilities and it was clear that adult learners with disabilities could benefit from CT in order to have greater autonomy in the creation of their art than before. In particular the program Corel Painter IX.5 and various graphics tablets proved to be a powerful arsenal for self‐expression without having to wait for a tutor to tape paper to a board, replenish paint, change brushes attached to a head pointer or any one of the many and varied problems disabled students had with traditional art materials.  相似文献   

The Hidden Curriculum of Domestication     

Juan S. Muñoz  Rosario Ordoñez Jasis  Patricia A. Young  Peter McLaren 《The Urban Review》2004,36(3):169-187

Four ethnically diverse faculty members in the field of education discuss the professional impact and personal affects of introducing critical themes of race, class, gender, and culture within their research and course offerings. Given that the professional outlook for university faculty of color in general, is grim, a willingness to imbue their research and courses with a critical interrogation of prevailing education topics and theories would seem to invite greater personal risk and professional jeopardy. The following dialogue introduces both the mechanisms by which critical faculty in general, and faculty of color in particular, can be conditioned to subordinate their critical impulses and the strategies they use to resist academic cultures of domestication.  相似文献   

Gender differences in science achievement: Do school effects make a difference?     

Deidra J. Young  Barry J. Fraser 《科学教学研究杂志》1994,31(8):857-871

The problem of the underrepresentation of girls in science in Australian schools is often attributed to their poor performance. Yet the role of both the home and the school in affecting female science achievement is rarely examined empirically. The comprehensiveness of the Second International Science Study database provided an excellent opportunity to investigate the presence of gender differences in science achievement. Although previous studies of gender differences in science achievement have relied on methodology that has not adequately accounted for the school effects, this study used the design effect and hierarchical linear modeling (multilevel analysis) to explore whether there were significant gender differences. The relative contribution of schools to student achievement was examined, and school-level differences were found to contribute significantly toward explaining variations in student performance. Although statistically significant sex differences were found in physics achievement for 10-year-old, 14-year-old, and year-12 students, school effects were much more powerful in explaining student differences (9–19%) when compared with gender (3%).  相似文献   

Predicting college grades: the value of achievement goals in supplementing ability measures     

John W. Young 《Assessment in Education: Principles, Policy & Practice》2007,14(2):233-249

Achievement goal theory is an important theoretical framework for understanding achievement motivation. In previous studies, a mastery orientation has been shown to be related to students’ interest, while a performance orientation has been found to be predictive of academic performance outcomes such as course grades. In this study, the two mastery sub‐scores from the Multiple Goals Theory Measure (MGTM) of academic motivation, which was developed specifically from achievement goal theory, was found to be predictive of college grades for a sample of 257 undergraduates at a public university in the north‐eastern United States. Additionally, the results support a trichotomous model of achievement orientations comprising mastery approach, performance approach, and avoidance. The MGTM appears to hold promise as a diagnostic tool, but additional research is required on its resistance to faking and other threats to validity.  相似文献   

Teacher education programmes delivered at a distance: An examination of distance student perceptions     

Allan Young  Chance W. Lewis 《Teaching and Teacher Education》2008

Recent technological developments have greatly influenced the ways American universities deliver educational course offerings to students at a distance. The perception of pre-service teachers in distance education programmes is germane to the planning and delivery of distance education courses in teacher education departments in the future. The results of this American study revealed a differing perception between male and female students in the area of course structure, student/teacher interaction, overall course satisfaction and peer interaction. As a result of this study, recommendations are provided for teacher preparation programmes to improve distance education course offerings for prospective teachers in the USA and implications for educators involved in teacher preparation internationally.  相似文献   

‘Forgotten’ democracy,student activism,and higher education in Myanmar: past,present, and future     

Hong  Moon Suk  Kim  Hani 《Asia Pacific Education Review》2019,20(2):207-222

Asia Pacific Education Review - This paper is a historical examination of higher education in contemporary Myanmar, and its relationship to the students, the most important and visible actor in...  相似文献