Improving the integrated experience of in-class activities and fine-grained data collection for analysis in a blended learning class

Blended learning has steadily gained in popularity at the higher levels of education. This marks a change in pedagogical approaches from one-directional instruction to an interactive and technology-aided class. However, to manage fluent in-class activities and proper data analysis, real-time and fine-grained data collection activities are still needed. We propose an approach which provides rich information about student activities and automates processes which are time-consuming and which otherwise require extraneous effort. First, we implemented a program to collect real-time and fine-grained data and to provide an integrated experience during in-class activities. Second, we undertook a data analysis with the collected real-time, fine-grained data. Our blended learning is a type of flipped learning with personal response systems (PRSs) of the type commonly known as clickers. We used clickers for attendance, quizzes, and daily surveys, and collected the resulting data. Our outcome shows that the blended learning approach improves student achievement levels with a relatively small standard deviation compared to traditional classes. In addition, the present findings are factors related to student satisfaction and seat position, as analyzed from the data collected using the clickers.     

Global interconnectedness and multiculturalism in undergraduate sociology courses in the USA

This study attempts to explain a process of inserting global transnational elements into an undergraduate sociology course. After a review of global themes covered in introductory sociology textbooks, the author administered two projects (Global Multiculturalism and Sociology of Wal-Mart) in an undergraduate sociology course. The current study reports the techniques used within these projects called the Multi-Phase Class Activity of Globalisation (MUPCAG) model used in General Sociology classes, student reactions related to them, and the significance of the projects in terms of teaching and learning. The MUPCAG model was to enhance students’ understanding of global multiculturalism and interconnectedness, in particular, students’ critical thinking about the issues of globalisation. It was observed that students showed more flexible and diverse approaches when exposed to concrete concepts, such as commodity chain, global city and global intersection in class discussion.     

Early effects of oral administration of omeprazole and roxatidine on intragastric pH

Objective

The ideal medication for the treatment of acid-related diseases, e.g., peptic ulcers, stress-related gastric bleeding, functional dyspepsia, and gastroesophageal reflux disease, should have a rapid onset of action to promote hemostasis and relieve the symptoms. The aim of our study was to investigate the inhibitory effects on gastric acid secretion of a single oral administration of a proton pump inhibitor, omeprazole 20 mg, and an H₂-receptor antagonist, roxatidine 75 mg.

Methods

Ten Helicobacter pylori-negative male subjects participated in this randomized, two-way crossover study. Intragastric pH was monitored continuously for 6 h after single oral administration of omeprazole 20 mg and roxatidine 75 mg. Each administration was separated by a 7-d washout period.

Results

During the 6-h study period, the average pH after administration of roxatidine was higher than that after administration of omeprazole (median: 4.45 vs. 2.65; P=0.0367). Also during the 6-h study period, a longer duration of maintenance at pH above 2, 5, and 6 was observed after administration of roxatidine 75 mg than after administration of omeprazole 20 mg (median: 90.6% vs. 55.2%, P=0.0284; 43.7% vs. 10.6%, P=0.0125; 40.3% vs. 3.3%, P=0.0125; respectively).

Conclusions

In Helicobacter pylori-negative healthy male subjects, oral administration of roxatidine 75 mg increased the intragastric pH more rapidly than that of omeprazole 20 mg.     

Growth of Social Competence During the Preschool Years: A 3‐Year Longitudinal Study

This study examined the stability and growth over a 3‐year period of individual differences in preschool children's social competence, which was assessed in three domains: social engagement/motivation, profiles of behavior and personality attributes characteristic of socially competent young children, and peer acceptance. A total of 255 children (126 girls and 129 boys) participated in this study. Growth curve analyses demonstrated both stability and change with regard to social competence over early childhood. Social competence measures and latent variables were invariant over this time period, individual differences in social competence were largely stable from year to year, and significant increases over time were observed for the domain most closely reflective of specific personal attributes skills.     

Migration distance-based platelet function analysis in a microfluidic system

Aggregation and adhesion of platelets to the vascular wall are shear-dependent processes that play critical roles in hemostasis and thrombosis at vascular injury sites. In this study, we designed a simple and rapid assay of platelet aggregation and adhesion in a microfluidic system. A shearing mechanism using a rotating stirrer provided adjustable shear rate and shearing time and induced platelet activation. When sheared blood was driven through the microchannel under vacuum pressure, shear-activated platelets adhered to a collagen-coated surface, causing blood flow to significantly slow and eventually stop. To measure platelet adhesion and aggregation, the migration distance (MD) of blood through the microchannel was monitored. As the microstirrer speed increased, MD initially decreased exponentially but then increased beyond a critical rpm. For platelet-excluded blood samples, there were no changes in MD with increasing stirrer speed. These findings imply that the stirrer provided sufficiently high shear to activate platelets and that blood MD is a potentially valuable index for measuring the shear-dependence of platelet activation. Our microfluidic system is quick and simple, while providing a precise assay to measure the effects of shear on platelet aggregation and adhesion.     

Translation of ‘America’ during the early Cold War period: a comparative study on the history of popular music in South Korea and Taiwan

Abstract

The evaluation of the cold war influences played by the US on the rest of the world should not only be accounted economically and politically, but also culturally. In this paper we see the US influences on South Korea and Taiwan from the value‐laden concept of Americanization and through which we examine comparatively specific practices of domestic popular music development in these two countries. Setting this paper as a historical comparative study, we see the working of Americanization in relation to popular music as a value regime in which American is constructed as an ideal model imaginatively and discursively, which was made possible by economic, social and cultural forces in South Korea and Taiwan. Focusing on the Cold War period, circa 1950s to 1960s, levels and aspects of Americanization were therefore ways of translation, to use Said’s concept of traveling theory analogically; Anglo‐American music genres traveled to these countries to be incorporated contextually as new or trendy conventions of music‐making, which in turn helped form local music genres. The socio‐historical contexts of South Korea and Taiwan, with respect to the presence of American army forces, and similar postwar anti‐communist political forces, in nation‐building (north–south Korea, red China–free China antagonism respectively) are central to our understanding of the visibility of Americanization in different music cultures in these two countries. This paper will go into each country’s historical trajectory of music practices that took Japanese colonial influences up to the postwar time and then blending with Anglo‐American genres in indigenizing that eventually marked their different paths, as we comparatively reveal their institutional, political and national cultural conditions, which were necessary in shaping each country’s music‐making conventions, entertainment business, and consumption cultures of popular music – and that might implicitly inform tentatively the present rivalry between ‘offensive’ Korean Wave and ‘defensive’ Taiwanese ‘rockers’ in the globalization era.     

Reading-growth estimates for elementary-school students using curriculum-based measurement

In this study, we examine grade-level growth rates for general education students and students with learning disabilities in grades two to six. In conducting the study, we demonstrate how schools, districts, and state educational agencies can use a combination of Curriculum-Based Measurement and Hierarchical Linear Modeling (HLM) methods to develop growth-rate norms in reading. The participants were made up of 273 general education students and 430 students with learning disabilities. The growth rates for these two groups of students in each grade were estimated using HLM. Within each grade, separate growth rates for subgroups of general education students (i.e., high, average, and low achievers) were estimated. The uses of estimated growth rates for setting year-end goals, monitoring student progress, and evaluating the effectiveness of instructional programs are also discussed.     

The triarchic theory of intelligence and computer-based inquiry learning

Sternberg's (1985) triarchic theory of human intelligence distinguished among three types of intellectual abilities: analytic, creative, and practical. Our study explored the relationships between student abilities and the cognitive and attitudinal outcomes that resulted from student immersion in a computer-based inquiry environment. In particular, we examined outcome variables related to content understanding, problem solving, and science-related attitudes. Results indicated that more practical abilities predicted greater content understanding and transfer of problem-solving skills. High analytic abilities were predictive of content understanding but not transfer of problem-solving skills. High creative abilities predicted problem solving, but were not predictive of performance on content understanding. In terms of science-related attitudes, students who were dominant in practical abilities had significantly more positive posttest attitudes than those dominant in analytic abilities. The results from this study were used to make recommendations regarding design principles used in the subsequent development of computer-based inquiry environments.