• Physical Therapy Rehabilitation Science
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• v.3 no.1
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• pp.27-32
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• 2014

Objective: The aim of this study was to compare the radial bone strength, sitting balance ability and global self-esteem of wheelchair martial arts practitioners and healthy control participants. Design: Cross-sectional study. Methods: Nine wheelchair martial art practitioners with physical disabilities and 28 able-bodied healthy individuals participated in the study. The bone strength of the distal radius was assessed using the Sunlight Mini-Omni Ultrasound Bone Sonometer; sitting balance was quantified using the modified functional reach test (with reference to a scale marked on the wall); and the self-administered Rosenberg self-esteem (RSE) scale was used to measure the global self-esteem of the participants. The velocity of the ultrasound wave (speed of sound, m/s) traveling through the outer surface of the radial bone was measured and was then converted into a T-score and a Z-score. These ultrasound T-score and Z-score that represent bone strength; the maximum forward reaching distance in sitting (cm) that represents sitting balance; and the RSE total self-esteem score that indicates global self-esteem were used for analysis. Results: The results revealed that there were no statistically significant between-group differences for radial bone-strength, maximum forward reaching distance, or self-esteem outcomes. Conclusions: The wheelchair martial arts practitioners had similar radial bone strength, sitting balance performance and self-esteem to able-bodied healthy persons. Our results imply that wheelchair martial arts might improve bone strength, postural control and self-esteem in adult wheelchair users. This new sport-wheelchair martial arts-might be an exercise option for people with physical disabilities.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.04a
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• pp.297-300
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• 2005

In this study, we proposed genetically optimized self-organizing fuzzy polynomial neural network based on information granulation and evolutionary algorithm (gdSOFPNN), develop a comprehensive design methodology involving mechanisms of genetic optimization. The proposed gdSOFPNN gives rise to a structural Iy and parametrically optimized network through an optimal parameters design available within FPN (viz. the number of input variables, the order of the polynomial, input variables, the number of membership functions, and the apexes of membership function). Here, with the aid of the information granulation, we determine the initial location (apexes) of membership functions and initial values of polynomial function being used in the premised and consequence part of the fuzzy rules respectively. The performance of the proposed gdSOFPNN is quantified through experimentation that exploits standard data already used in fuzzy modeling.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.11a
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• pp.203-204
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• 2017

In case of developing a guide-rail type window cleaning robot, only the first prototype has been developed. In this study, it was considered that the size and the load of the window cleaning robot was not optimized, and through the structural analysis of the self-weight of the window cleaning robot, the stress concentration area was derived and the concentrated stress was quantified. Analysis showed that the upper rail shaft had a bending stress of 9.964Mpa and the bolt had a shear stress of 19.544Mpa. The results of this study will be used as basic data for designing future prototypes.

• Asia Marketing Journal
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• v.24 no.4
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• pp.169-177
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• 2023

In the current study, we explore how women decide whether to accept or reject a potential match offered by a dating app (Tinder). Specifically, we were trying to identify overlying factors that influence the decision and understand how women make a judgment based on limited cues provided by a Tinder profile. Women largely base their decision on the perceived attractiveness and character of the potential match. The findings suggest that attractiveness is highly subjective, with no universal rules that can be quantified; thus, it is hard to predict acceptance of the potential match. There are however factors that contribute significantly to profile rejection, such as a big age difference and the inability to clearly see the face of the person.

• The Journal of the Korea Contents Association
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• v.16 no.12
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• pp.43-49
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• 2016

As user-centered design and content development emerge, the research and the establishment of items on usability evaluation are becoming more important. However, research on usability evaluation for digital systems in specific areas of mobile applications is still incomplete. Due to the recent development of wearable devices and smartphones, development and usage of quantified-self and life-logging applications has been rapidly increasing. This study aims to establish evaluation items and the main factors for the usability assessment of the applications that support life-logging services. In order to establish evaluation factors for life-logging application usability, we first gathered existing usability assessment items and selected the initial items through the Focus Group Interview(FGI). Second, we conducted user assessment surveys on the selected initial questionnaires and performed reliability and exploratory factor analyses based on the survey results. Third, through the statistical analyses results, we established 28 usability assessment items and four factors: recognition; functionality; aesthetics; and satisfaction. Finally, we discussed the expectations and limitations of the established usability assessment. The results from this paper could be used as a guideline for the usability assessment of life-logging applications and thus will contribute to effective content development.

• Journal of the Korean Home Economics Association
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• v.41 no.9
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• pp.121-134
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• 2003

This study examined the degree of school life adjustment in rural adolescents as well as related variables. For this purpose, the data of 192 persons from 40 villages in 8 provinces were analyzed using a SAS 8.1 program. The results of the analysis were as follows : 1) The overall degree of school life adjustment was quantified as about 67 points out of a 100 possible points. 2) The variables that affected the level of adjustment were self-esteem, healthiness of family, age. 3) The explanatory power of such variables as sex, religion, personality, school grades, father satisfaction, and mother satisfaction partially affected significantly in four sub-areas (teather relation, friend relation, attitude of classwork and rule of school areas) of adjustment. The groundwork of this study could be used as basic materials to develop an educational program to improve the adjustment of school life for rural adolescent.

• Journal of Families and Better Life
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• v.20 no.2
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• pp.69-81
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• 2002

The purpose of this study is to examine the healthy degree of the rural families and the variables that affect it, as well as the differences between husband and wife perceptions on the healthiness of rural families. One hundred and ninety six couples (three hundred and ninety two individuals) were surveyed for this study The following findings were obtained from the analysis of the data. First, the degree of the healthiness of rural families was quantified as about 71 points out of 100 possible maximum points. Second, family type ($\beta$=.17), the wife's self-esteem ($\beta$ =.22), the husband's self-esteem ($\beta$ =.17), wife's marital satisfaction ($\beta$ =.32), and husband's marital satisfaction ($\beta$=.15) were the only variables that significantly affected the healthiness of rural families. Third, social-psychological variables (for example, self-esteem and marital satisfaction of the couple) had more explanatory power than material and farming-related variables. From the results of this study, it is suggested that in order to enhance the healthiness of rural families, systematic educational programs that can improve social-psychological interactions among family members should be developed.

• Journal of Korean Biological Nursing Science
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• v.12 no.3
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• pp.148-156
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• 2010

Purpose: Oral mucositis (OM) is a serious consequence of chemotherapy that cancer patients must undergo. The objectives of this study were to find out reliability and validity of patients self-reported daily questionnaires on OM, and the impact OM makes on daily functions. Method: To test the reliability of oral mucositis daily questionnaire (OMDQ), internal consistency of the instrument (Cronbach's ${\alpha}$ and correlation between items) and test-retest reliability were analyzed. Criterion validity and discriminative validity were evaluated using WHO, oral assessment guide, and Nicolatou assessment tool. Forty-eight acute leukemic patients under chemotherapy were enrolled in this study. Result: The Cronbach's ${\alpha}$ coefficient indicated sufficient internal consistency. Correlations of Mouth and throat soreness (MTS) and MTSActivity Limitations (MTS-AL) were statistically significant. MTS and MTS-AL scores on consecutive days were highly correlated (days13,14=.84-.96; test-retest reliability). OMDQ scale had high criterion validity and discriminative validity. Patients with more severe WHO OM grades had higher MTS mean scores. Conclusion: Oral mucositis in acute leukemic patients under going chemotherapy can be easily quantified by patient self-administered OMDQ with reliability and validity.

• The Journal of the Korea Contents Association
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• v.17 no.1
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• pp.550-566
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• 2017

Recent advances in wearable devices and quantified-self movement increase the number of personal informatics application that may cause an concern to health industry and user. In this light, the goal of this study is to identify more effective ways of design and evaluation of personal informatics application for self-tracking and delivering health information to users. For this goal, this study conducted areal-world study that processes such that user can assess, be aware of, and self-reflect on their data and behavior activity. In doing so, this study aims to determine the psychological effects of forms of health feedback (comparative vs. non-comparative) and presentation modes (text vs. image) on users' tendencies toward health conservation. Results from a between-subjects experiment revealed that health information in a comparative and textual format was more effective in encouraging health conservation in participants than identical information presented in a non-comparative and image format. In addition, participants' level of health consciousness emerged as a significant predictor. Through this analysis of quantitative data and inferences, this study make a number of contributions to the user affordance research and its methodology of health informatics study and designing personal informatics application that support user's behavior change in various contexts.

• Fashion & Textile Research Journal
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• v.25 no.2
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• pp.230-240
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• 2023

This study attempts to reveal the causal relationship between certain variables, with the objective being to investigate the influence of career disability on self-efficacy and career preparation behavior of Chinese college students. In terms of data collection, online surveys were conducted during the period spanning September 1 to September 20, 2022 targeting fourth-year university students living in Liaoning, China. A total of 536 completed surveys were used for the final analysis, and the SPSS 25.0 program was employed in this regard. The results of the study confirmed that the career barriers of Chinese college students had both positive and negative effects on career decision-making self-efficacy and career preparation behavior, signaling a partial causal relationship. This indicates that career barriers are not only negative factors in career decision-making or career preparation. The current study is meaningful in that the results can serve as the basis for future studies, as the work itself investigated the influence of career barriers on career decision self-efficacy and career preparation behavior; additionally, the results were quantified. It is anticipated that there will be further studies on such influences considering the diverse variables of career barriers, career decision self-efficacy, and career preparation behavior. The results of this study are expected to provide useful information on career preparation to Chinese college students - information which can be used as empirical data.