Does Physical Activity Enhance Learning Performance?: Learning Effectiveness of Game-based Experiential Learning for University Library Instruction

This paper reports research results of the proposed experiential learning using a game-based educational material. The educational material was an application running on a mobile device and was supported for learners to study university library instruction. During the experiential learning, the learners answered several quizzes provided from the educational material. The quizzes were including experiential contents such as actually to find an academic journal or to reserve a learning room. In order to evaluate learning effectiveness of the experiential learning, this research made a comparative experiment. The experimental group used the educational material and the control group used another educational material of e-learning (non-experiential) but the contents was almost same as the contents of the experiential learning. The comparative experiment took several evaluation elements such as pre-/post-test scores, delayed-test scores and learning motivation scores based on IMMS of ARCS model. The experimental results revealed that experiential learning was superior for the several elements of these metrics. This research, furthermore, analyzed learner's operation data to the educational material and learner's behavior data during the learning in the experimental group. The analyzing results showed three types of the learning behaviors and indicated that an instructor needs to adopt suitable instructional design to each type to bring superior learning effectiveness.     

Muscle cross-sectional areas and performance power of limbs and trunk in the rowing motion

Although it is clear that rowers have a large muscle mass, their distribution of muscle mass and which of the main motions in rowing mediates muscle hypertrophy in each body part are unclear. We examine the relationships between partial motion power in rowing and muscle cross-sectional area of the thigh, lower back, and upper arms. Sixty young rowers (39 males and 21 females) participated in the study. Joint positions and forces were measured by video cameras and rowing ergometer software, respectively. One-dimensional motion analysis was performed to calculate the power of leg drive, trunk swing, and arm pull motions. Muscle cross-sectional areas were measured using magnetic resonance imaging. Multiple regression analyses were carried out to determine the association of different muscle cross-sectional areas with partial motion power. The anterior thigh best explained the power demonstrated by leg drive (r2 = 0.508), the posterior thigh and lower back combined best explained the power demonstrated by the trunk swing (r2 = 0.493), and the elbow extensors best explained the power demonstrated by the arm pull (r2 = 0.195). Other correlations, such as arm muscles with leg drive power (r2 = 0.424) and anterior thigh with trunk swing power (r2 = 0.33 5), were also significant. All muscle cross-sectional areas were associated with rowing performance either through the production of power or by transmitting work. The results imply that rowing motion requires a well-balanced distribution of muscle mass throughout the body.     

Biculturalism and self-construal

Evidence on the dimensionality of self-construal points to the coexistence of both an independent and an interdependent self-image. Drawing on conceptualizations of the acculturation process, this study is a preliminary examination of the distinctiveness of four hypothesized self-construal patterns: Bicultural, Western, Traditional, and Culturally-alienated. Different types of individuals, having experienced varying amounts of cultural contact and having made different choices in adjusting to cultural groups, might portray distinctive self-construal patterns. Especially intriguing was the notion that those with a well developed sense of interdependence and a well developed sense of independence could be described as bicultural. To test this, persons from four a priori identified groups were selected to represent the four patterns of self-construal. We predicted that on a measure of self-construal, the mean scores of the respondents in the four groups would differ in strength with the bicultural experience group, in particular, exhibiting both a high independent and a high interdependent score on a measure of self-construals. Our hypotheses were supported. In terms of independent self-construal, the Bicultural and Western groups scored significantly higher than the Traditional and Alienated groups. For the interdependent self-construal, the Traditional and Bicultural groups scored significantly higher than the Western and Alienated groups. The bicultural group was the only group to score significantly higher on both types of construals. The availability of both types of self-construal would likely facilitate communication and adaptive behaviors for persons interacting in multiple cultures.     

Collaborative filtering for expansion of learner’s background knowledge in online language learning: does “top-down” processing improve vocabulary proficiency?

In recent years, collaborative filtering, a recommendation algorithm that incorporates a user’s data such as interest, has received worldwide attention as an advanced learning support system. However, accurate recommendations along with a user’s interest cannot be ideal as an effective learning environment. This study aims to develop and evaluate an online English vocabulary learning system using collaborative filtering that allows learners to learn English vocabulary while expanding their interests. The online learning environment recommends English news articles using information obtained from other users with similar interests. The learner then studies these recommended articles as a method of learning English. The results of a two-month experiment that compared this system to an earlier collaborative filtering system called “GroupLens” reveal that learners who used the collaborative filtering system developed in this study read various news articles and had significantly higher scores on topic-specific vocabulary tests than did those who used the previous system.     

Putting learning back into learning analytics: actions for policy makers,researchers, and practitioners

Educational technology research and development - This paper is based on (a) a literature review focussing on the impact of learning analytics on supporting learning and teaching, (b) a Delphi...     

PUBLIC OPINION SURVEYS IN JAPAN

This article examines, from secondary sources, various aspectsof public opinion surveys in Japan. During the 1975 to 1990period, there was an increase in the number of surveys and therewere some similarities and some differences in their topics.The use of the Basic Residents Registers as a sampling framehas increased. The plurality of the surveys drew their samplesfrom a single city. The proportion of mail surveys increased;whereas personal interviews and drop-off self-administered surveysdecreased. Response rates for all major questionnaire administrationmethods decreased. Despite the decline, the median responserate was 75.2 percent during this period. Response rates wereexamined more closely using the rates of the National Life Surveyfor 1975, 1980, 1985, and 1990. The following trends were noted:(a) response rates of urban areas declined more sharply thanthose of rural areas; (b) overall response rates of males wereabout 10 percentage points lower than those of females; (c)response rates of females in their twenties had the steepestdecline; and (d) refusals almost doubled. Some of the reasonsfor these changes are discussed and it is noted that the decreasingresponse rates probably reflect changes in lifestyles and attitudestowards surveys.     

A note on the time lag between the life cycle of a discipline and resource allocation in Japan

Comparisons over time of the inputs and outputs of polymer chemistry research in Japan show that the academic institutionalisation of this discipline took place after the most creative period in its research had been reached. Early interest in the development of the field had been stimulated by Japanese industry in response to major discoveries made in Western Europe and the USA.     

Wind tunnel measurement and flow visualisation of soccer ball knuckle effect

Wind tunnel experiments were conducted, in particular focusing on slow unsteady variations of aerodynamic forces as a potential cause of the knuckle effect of a new soccer ball (Teamgeist) under non-spinning condition. The experiments included simultaneous measurements of the drag, the side force and the surface pressure on a ball surface, and the tuft visualisation to investigate the flow field behind a ball. Of particular interest was the erratic nature of the knuckle effect resulting from the unsteady movement of vortical wake structure in the supercritical Reynolds number regime. A simple 2-D numerical simulation of the ball flight trajectory was performed by taking into account the unsteady side force data measured in the present experiments.     

Preschool outcomes of children of depressed mothers: role of maternal behavior,contextual risk,and children's brain activity

Children of depressed mothers are at risk for behavioral and emotional problems. Infants of depressed mothers exhibit behavioral disturbances and atypical frontal brain activity. The mechanisms by which children develop such vulnerabilities are not clear. Three-year-old children of mothers with (N = 65) and without (N = 59) a history of depression were assessed in terms of behavior problems and brain electrical activity. Children of mothers with chronic depression exhibited lower frontal and parietal brain activation compared with children of mothers without depression and those whose depression remitted. Depressed mothers reported higher contextual risk (e.g., marital discord and stress) and their children had more behavior problems. Children's frontal brain activation and contextual risk level mediated the relation between maternal depression and child behavior problems.