• Journal for History of Mathematics
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• v.34 no.2
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• pp.75-87
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• 2021

Hirabayashi Ichiei has sought theoretical improvement of educational studies in mathematics from the standpoint that educational studies in mathematics should be practical. His beliefs and subsequent attempts have many implications for Korean educational studies in mathematics. In this regard, it is meaningful to examine his theory of mathematics education. But he is not well-known in Korean community of educational studies in mathematics today. For this reason, His life and theory of mathematics education are outlined.

• Mycobiology
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• v.49 no.1
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• pp.46-53
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• 2021

In a study of the fungal diversity on Ulleung Island in Korea, three novel strains of Penicillium were isolated. Different sites on Ulleung Island were selected for collecting endophytic fungi, and three endophytic fungal strains showed unique morphological characteristics. DNA sequence of the internal transcribed spacer, β-tubulin, calmodulin, and RNA polymerase II second largest subunit regions of the strains were analyzed and they showed unique taxonomic position from the other species of Penicillium section Sclerotiora. The new strains were named Penicillium ulleungdoense sp. nov. As the novel endophytic Penicillium taxa were discovered in a unique environment, the data could be meaningful for understanding the geographical distribution of Ascomycetes on Ulleung Island.

• Journal of Digital Convergence
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• v.14 no.5
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• pp.519-526
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• 2016

This study aims to verify the relationship between achievement goal orientation and life satisfaction. It consists of 450 athletes from high school, university, and professional teams as an object. After examining reliability and validity on questionnaires, the data, based on gender, was evaluated by analysis of variance, correlation analysis, and multiple regression analysis. The result says that male athletes have higher scores in Mastery approach and Performance approach - two of the four achievement motivation factors - which means a meaningful difference between gender. Life satisfaction also shows that male players have more satisfaction and indicates a big difference between gender. Finally, according to the multiple regression analysis on the Athlete's achievement goal orientation and life satisfaction, Mastery approach affects statically but Mastery avoidance does negatively on athlete's life satisfaction. The gender-based relationship between Athlete's achievement goal orientation and life satisfaction reveals that mastery approach gives positive effects on life satisfaction for both genders, but mastery avoidance influences negatively on male and female life satisfaction.

• The Journal of the Korea Contents Association
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• v.14 no.2
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• pp.506-516
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• 2014

The purpose of this study is to investigate the influence of perceived parental attachment and self-differentiation on the adjustment to college life For this study, we used research data about the adjustment to college life, perceived parental attachment and self-differentiation which were collected from 271 university students live in Busan. We carried out correlation analysis to see the relationship between perceived parental attachment, self-differentiation and the adjustment to college life. Also, we carried out stepwise multiple regression to predict the most influential variable in college life. Results of this study were as follows. First, perceived parental attachment, and self-differentiation have a meaningful positive relationship with college life. Second, attachment anxiety, attachment avoidance, family projection, and cognitive and emotional functioning have more effects on the adjustment to college. Especially attachment avoidance affects college life more than others. These results show the importance of a wide variety of policy research to develope peer support program and counseling for a better school life on schools, classes, counseling centers.

• The Korean Journal of Community Living Science
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• v.20 no.2
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• pp.275-289
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• 2009

The purpose of this study is to examine the middle aged's perception of aging and the degree of physical/financial/social preparation for later life and to explore the effect of the middle aged's perception of aging, who live in Gwangju & Jeonnam of Korea, on physical/financial/social preparation for later life. This research also explores gender differences in perception of aging, preparation for later life and related factors. For the purpose, the survey data was gathered from 424 middle aged (40's & 50's) citizens who live in Gwangju and Jeonnam, using structured questionnaire. The statistical methods used for data analysis are descriptive statistics, cross tables, t-test, correlations and regression with Spss/win 17.0 program. The major findings of this study are as follows: Most of the respondents perceive that the age of being aged is 65 or 70 years old. Respondents feel anxiety about health (84%), finance (57%) and roleless role (22%) of later life. Female group feel health anxiety more than male group. Many people perceive that social preparation for later life is better than financial preparation and physical preparation for later life. The result shows that female group perceives their physical preparation level more positively than male group generally. But, there were no differences in financial and social preparation between gender groups. Finally, the result shows the meaningful relationships between male group's perception of aging and financial preparation for later life. Monthly income is the most important variable predicting preparation for later life.

• Journal of Families and Better Life
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• v.33 no.6
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• pp.35-49
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• 2015

This study is to examine the relationships between experiences in the family of origin with fathers, parenting participation of fathers, and parenting stress of mothers. The subjects in this study consisted of 203 couples with children of ages 3, 4, and5 attending child care centers in the Gyeong-gi province. The results of this research are summarized as follows. First, experiences in the family of origin with fathers, have meaningful correlations with parenting participation of fathers and parenting stress of mothers. Also, parenting participation of fathers has meaningful correlations with parenting stress of mothers. Second, experiences in the family of origin with fathers have direct/indirect influence on parenting stress of mothers and parenting participation of fathers played a mediating role between the two variables. It is significant that these results give the basic research data for developing aparental education program that can lower parenting stress of mothers by parenting participation of fathers.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.14 no.2
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• pp.153-174
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• 2003

Travel motivations appear particularly useful in describing those individuals who visit a specific travel attraction versus those who do not visit the attraction. Novelty seeking is an important motivator for traveling today. In this study four factors and three groups resulting from a cluster analysis were tested in determination for 13 preference and 21 motivators. The major finding of this study are as follows: Prior consideration in oversea travel for people is to expect to contact new culture and exotic environment. In the selection of oversea travel with the level of novelty seeking traits, rhere is meaningfull diffrences. In the novelty seeking levels of leisure activities remarkable difference appeared in the selective degree variables and the examination of the gap. In the selection of oversea with the novelty seeking level it displayed meaningful differences in the 10 items. In a travel in accordance with levels of novelty seeking- which is divided into groups high, medial, and, low level of novelty seeking groups- four elements of their levels demonstrated meaningful differences, such as adventure seeking type, out-of-ordinary life type, fun seeking type and free travel type. In order words, the means of high-concerned group, medial, and ldw-concerned group showed remarkable differemndes.

• Journal of Korean Society for Quality Management
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• v.39 no.4
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• pp.507-515
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• 2011

MIL-HDBK-217 has played a pivotal role in reliability prediction of electronic equipments for more than 30 years. Recently, RIAC developed a new methodology $217Plus^{TM}$which officially replaces MIL-HDBK-217. Sensitivity analysis of the 217Plus component models to various parameters has been performed and meaningful observations have been drawn in this study. We first briefly reviewed the $217Plus^{TM}$ methodolog and compared it with the conventional model, MIL-HDBK-217. We then performed sensitivity analysis $217Plus^{TM}$ component models to various parameters. Based on the six parameters and an orthogonal array selected, we have performed indepth analyses concerning parameter effects on the model. Our result indicates that, among various parameters, operating temperature and temperature rise during operation have the most significant impacts on the life of a component, and thus a design robust to high temperature is the most importantly required. Next, year of manufacture, duty cycle, and voltage stress are weaker but may be significant when they are in heavy load conditions. Although our study is restricted to a specific type of diodes, the results are still valid to other cases. The results in this study not only figure out the behavior of the predicted failure rate as a function of parameters but provide meaningful guidelines for practical applications.

• Korean Institute of Interior Design Journal
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• v.22 no.1
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• pp.154-163
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• 2013

This study is aimed to identify the expression and the sense of time in contemporary architectural space. And to classify the system and elements of Zeitlichkeit in the contemporary architectural design. The concept of time can be divided into two meaningful perceptions. Those are the concept of realistic time and the concept of subjective time. These tendencies of theories of architectural space has borrowed from innovations in the sciences, and the whole idea of space-time within art and architecture. Those notions developed through the researches of Bauhaus, Postmodernism, Landscape architecture, Digital Architecture and so forth. The result of this study is that the concepts of time are one of the most important strategies of architectural design and have the various languages which there was not in the past. At the point of the transformation in contemporary architecture, the The concepts of space-time are classified into those from the orders of form and space, from dynamic of the image in the dissolution of architectural form, from traces and steps of movement in dynamic form, and from the systems of commands in the digital softwares. As such, Zeitlichkeit in contemporary architecture means that the architecture moves from the construction of the sensual design elements into Art of life through events and contents which human can experience and recognize. These theories and researches reveal that contemporary architectural movements insert the meaningful stories into architectural space through programs and diagrams.

• The Korean Journal of Health Service Management
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• v.8 no.2
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• pp.175-185
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• 2014

This study analyzed individual happiness exponent according to local residents' perception degree of Health-Cities. The data, which is accumulated by the survey on relationship between happiness and perception degree of Health-Cities targeting 662 of local residents living in Y-gu in Busan, were analyzed using PASW 18.0. The results are as follows. To begin with, the results of Correlation Analysis on the relation between happiness index and cognition degree of Health-Cites indicate that the higher perception of Health-Cities'facilities, administrations, services, education, health environment and transportation the local residents have, the lower individual happiness index they acquired. The cognition degree of transportation has effects on local society and daily life; the cognition degree of facilities and businesses has impact on financial stability. The cognition degree of administrations has influence on psychological relaxation, services have meaningful effects on psychological stability, work and residence, education have statistically meaningful effects on psychological stability, families and marriage, individual human relationships in respect.