Browsing software of the Visible Korean data used for teaching sectional anatomy

The interpretation of computed tomographs (CTs) and magnetic resonance images (MRIs) to diagnose clinical conditions requires basic knowledge of sectional anatomy. Sectional anatomy has traditionally been taught using sectioned cadavers, atlases, and/or computer software. The computer software commonly used for this subject is practical and efficient for students but could be more advanced. The objective of this research was to present browsing software developed from the Visible Korean images that can be used for teaching sectional anatomy. One thousand seven hundred and two sets of MRIs, CTs, and sectioned images (intervals, one millimeter) of a whole male cadaver were prepared. Over 900 structures in the sectioned images were outlined and then filled with different colors to elaborate each structure. Software was developed where four corresponding images could be displayed simultaneously; in addition, the structures in the image data could be readily recognized with the aid of the color-filled outlines. The software, distributed free of charge, could be a valuable tool to teach medical students. For example, sectional anatomy could be taught by showing the sectioned images with real color and high resolution. Students could then review the lecture by using the sectioned and color-filled images on their own computers. Students could also be evaluated using the same software. Furthermore, other investigators would be able to replace the images for more comprehensive sectional anatomy.     

Student Perceptions of Autonomy-Supportive Instructional Interactions in the Middle Grades

Autonomy support in classrooms is believed to coordinate students' inner motivational resources in ways that enhance student engagement (e.g., Jang, Kim, &; Reeve, 2012 Jang, H., Kim, E. J., &; Reeve, J. (2012). Longitudinal test of self-determination theory's motivation mediation model in a naturally occurring classroom context. Journal of Educational Psychology, 104(4), 1175–1188. Retrieved from http://dx.doi.org/10.1037/a0028089[Crossref], [Web of Science ®] , [Google Scholar]). Yet, to our knowledge, no study has investigated student-generated interpretations of the motivational significance of their teachers' autonomy-supportive practices. Interpretations gathered from students' responses to video clips of their own teacher were studied with a diverse sample of students (N = 59, 50.8% male, 64.4% African American) in six urban classrooms from fourth- to eighth-grade class sections. Through this method of cued video response, we explore whether or not students experience the significance of autonomy-supportive instructional events or interactions as motivational theory predicts. Our results suggest that consideration of the social and relational features of the classrooms within which teachers enact autonomy support may identify influential contextual factors relevant to how and why autonomy support is linked to positive outcomes.     

Learning English as an L2 in the Global Context: Changing English,Changing Motivation

As the English language has become a global lingua franca today, it is not surprising that changes in attitudes and perceptions towards learning English in the international context have taken place at the same time. In this paper, I critically examine the notion of ‘integrative motivation’ in the literature of second language (L2) learning with respect to the changing role of the English language in the global context. In particular, this paper attempts to re-conceptualise the notion of integrative motivation by considering the results of recent empirical research on L2 motivation. It is argued that the predominant motivation of learning English among most L2 learners is no longer concerned with ‘integration’ in the target native English-speaking culture, but with the construction of a ‘bi-cultural’ or ‘world citizen’ identity, as well as identification with the international community. The paper ends by suggesting new ways of understanding the concept of motivation in L2 learning in today’s global context.     

Adaptive output-feedback control for nonlinear time-delay systems in pure-feedback form

The main contribution of this paper is to develop an adaptive output-feedback control approach for a class of uncertain nonlinear systems with unknown time-varying delays in the pure-feedback form. Both the non-affine nonlinear functions and the unknown time-varying delayed functions related to all state variables are considered. These conditions make the controller design difficult and challenging because the output-feedback controller should be designed using only the output information. In order to overcome these conditions, we design an observer-based adaptive dynamic surface controller where the time-delay effects are compensated by using appropriate Lyapunov–Krasovskii functionals and the function approximation technique using neural networks. A first-order filter is added to the control input to avoid the algebraic loop problem caused by the non-affine structure. It is proved that all the signals in the closed-loop system are semi-globally uniformly bounded and the tracking error converges to an adjustable neighborhood of the origin.     

制衣业的全面品质管理

文章叙述了制衣业的全面品质管理在制衣业上的重要性。     

Review Article: Recent advancements in optofluidic flow cytometer

There is an increasing need to develop optofluidic flow cytometers. Optofluidics, where optics and microfluidics work together to create novel functionalities on a small chip, holds great promise for lab-on-a-chip flow cytometry. The development of a low-cost, compact, handheld flow cytometer and microfluorescence-activated cell sorter system could have a significant impact on the field of point-of-care diagnostics, improving health care in, for example, underserved areas of Africa and Asia, that struggle with epidemics such as HIV∕AIDS. In this paper, we review recent advancements in microfluidics, on-chip optics, novel detection architectures, and integrated sorting mechanisms.     

Raciolinguistic ideology of antiblackness: bilingual education,tracking, and the multiracial imaginary in urban schools

Abstract

Based on a qualitative study of an urban middle school, this article examines student perceptions of shifting tracking structures following the dismantling of a school’s bilingual education program. The article demonstrates that students understood the school changes based on supposed language needs through an explicitly racialized lens, thereby illuminating both the permeability and entrenchment of raciolinguistic ideologies in the predominantly nonwhite school. In particular, a raciolinguistic ideology of antiblackness that positioned Black students as lacking when compared to other non-White students was ultimately reproduced in student discourse despite the change from bilingual education to English-only class tracks. This finding is significant because it questions how education reform is often structured without regard to broader social contexts and histories. The article concludes by exploring strategies policymakers and educators can draw from to challenge underlying relational racializations of antiblackness that are so pervasive in our current language education programs.     

Development of 1-mile walk tests to estimate aerobic fitness in children

To examine the reliability and validity of 1-mile walk tests for estimation of aerobic fitness (VO_2max) in 10- to 13-year-old children and to cross-validate previously published equations. Participants (n = 61) walked 1-mile on two different days. Self-reported physical activity, demographic variables, and aerobic fitness were used in multiple regression analyses. Eight models were developed with various combinations of predictors. The recommended model for fitness testing in schools was: VO_2max = 120.702 + (4.114 × Sex [F = 0, M = 1]) – (2.918 × 1-mile Walk Time [min]) – (2.841 × Age), R = .73, standard error of estimate = 6.36 mL·kg^?1·min^?1. Cross-validation of previously published equations demonstrated lower correlations with measured VO_2max than the newly developed walk tests. Evidence of reliability and validity for 1-mile walk tests to estimate VO_2max in young children was provided. The model that included 1-mile walk time, age, and sex may be appropriate for youth fitness testing in physical education, particularly for unmotivated or overweight young children.     

Analyzing the discriminative attributes of products using text mining focused on cosmetic reviews

Consumers evaluate products through online reviews, in addition to sharing their product experiences. Online reviews affect product marketing, and companies use online reviews to investigate consumer attitudes and perceptions of their products. However, when analyzing a review, it is often the case that specific contexts are not taken into consideration and meaningful information is not obtained from the analysis results. This study suggests a methodology for analyzing reviews in the context of comparing two competing products. In addition, by analyzing the discriminative attributes of competing products, we were able to derive more specific information than an overall product analysis. Analyzing the discriminative attributes in the context of comparing competing products provides clarity on analyzing the strengths and weaknesses of competitive products and provides realistic information that can help the company's management activities. Considering this purpose, this study collected a review of the BB Cream product line in the cosmetics field. The analysis was sequentially carried out in three stages. First, we extracted words that represent discriminative attributes by analyzing the percentage difference of words. Second, different attribute words were classified according to the meaning used in the review by using latent semantic analysis. Finally, the polarity of discriminative attribute words was analyzed using Labeled-LDA. This analysis method can be used as a market research method as it can extract more information than a traditional survey or interview method, and can save cost and time through the automation of the program.