• Communications of Mathematical Education
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• v.30 no.3
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• pp.393-418
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• 2016

Theory and fundamentals of mathematics consist mostly of proposition form. Activities by research of the proposition which leads to determine the true or false, justify the true propositions and refute with counterexample improve logical reasoning skills of students in emphases on mathematics education. Also, utilizing of counterexamples in school mathematics combines mathematical knowledge through the process of finding a counterexample, help the concept study and increase the critical thinking. These effects have been found through previous research. But many studies say that the learners have difficulty in generating counterexamples for false propositions and materials have not been developed a lot for the counterexample utilizing that can be applied in schools. So, this study analyzed the current textbook and examined the use of counterexamples and developed educational materials for counterexamples that can be applied at schools. That materials consisted of making true & false propositions and students was divided into three groups of academic achievement level. And then this study looked at the change of the students' thinking after counterexample classes. As a study result, in all three groups was showed a positive change in the cognitive domain and affective domain. Especially, in top-level group was mainly showed a positive change in the cognitive domain, in upper-middle group was mainly showed in the cognitive and the affective domain, in the sub-group was mainly found a positive change in the affective domain. Also in this study shows that the class that makes true or false propositions in education of utilizing counterexample, made students understand a given proposition, pay attention to easily overlooked condition, carefully observe symbol sign and change thinking of cognitive domain helping concept learning regardless of academic achievement levels of learners. Also, that class gave positive affect to affective domain that increase interest in the proposition and gain confidence about proposition.

• Bulletin of the Korean Mathematical Society
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• v.47 no.6
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• pp.1251-1258
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• 2010

For an M/G/1 processor-sharing queue with batch arrivals, Avrachenkov et al. [1] conjectured that the conditional mean sojourn time is concave. However, Kim and Kim [5] showed that this conjecture is not true in general. In this paper, we show that this conjecture is true if the service times have a hyperexponential distribution.

• Bulletin of the Korean Mathematical Society
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• v.39 no.2
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• pp.185-198
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• 2002

We Consider the fuzzification of sub-implicative ideals in BCI-algebras, and investigate some related properties. We give conditions for a fuzzy ideal to be a fuzzy sub-implicative ideal. we show that (1) every fuzzy sub-implicative ideal is a fuzzy ideal, but the converse is not true, (2) every fuzzy sub-implicative ideal is a fuzzy positive implicative ideal, but the converse is not true, and (3) every fuzzy p-ideal is a fuzzy sub-implicative ideal, but the converse is not true. Using a family of sub-implicative ideals of a BCI-algebra, we establish a fuzzy sub-implicative ideal, and using a level set of a fuzzy set in a BCI-algebra, we give a characterization of a fuzzy sub-implicative ideal.

• The Korean Journal of Health Service Management
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• v.7 no.3
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• pp.193-202
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• 2013

This study aimed to investigate and compare the perception of personal protective equipments and instrument sterilization of students who are in attendance at colleges and universities and which have bedside training as a regular subject in their curriculum for third-year students. 'Completely True' is the highest response to the question about the importance of wearing gloves, mask and medical gown from all groups. 'Completely True' is the highest response to the question about the necessity for replacement of gloves from all groups. 'Moderate True' is the highest response to the question about the necessity for replacement of mask from the group without practical training and 'Completely True' is the highest response to the question about the importance of hair cleanliness from all groups regardless of practical training experience. For the question about the perception of instrument disinfection and sterilization, the group with inside and outside practical training showed the highest perception level. Consequently, the right education for prevention of infection by setting inclusive guidelines to enhance the level of perception and practice seems continuously necessary.

• Journal of Korean Home Economics Education Association
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• v.23 no.2
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• pp.89-107
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• 2011

In this work, we investigated the perceptions of marriage among married people through in-depth interviews with twenty-two married men and women. The results of our analysis on the in-depth interviews are as follows. 1. Married men and women are well aware of the fact that. in a marriage life, one must sacrifice something in order to get anything. That is, even though they have yearning for their lost days of single life and they miss those days, on the other hand, they think that, through marriage, they feel more stable with a sense of belonging to the family. and they are no longer feeling lonely. 2. Married people consider that marriage is something you really have to experience yourself before one knows what it is like to be married. That is, they consider that, while, being single is just like tasting only a little bit of the flavor of life, marriage is like tasting the true meaning of life. The true meanings of life that married people are trying to find are "the strength they get from their family and children", "the journey of finding one's true self through overcoming hardships of life", "the joy and comfort of living together as a family", and finally "the broader life experience and higher quality of life".

• 한국체육학회지인문사회과학편
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• v.51 no.4
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• pp.23-31
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• 2012

The purpose of this study was to inquiry implication of physical education based on the Zhaung Zi's philosophy. In order to investigate this purpose, I analyzed the text of Zhaung Zi. The result of the study was as followed. Zhaung-Zi oriented ideal image of human beings who has attained the stage of play(遊). He is an acquaintance (至仁), a man of god(神人), a true man(眞人). The purpose of physical education in Zhuang-Zi is paly(遊) which play well naturally. 'play is the gaming and play in which we can see the true face of the world and ourselves and can become on with the object in the world. Forget-enjoyment(至樂) of victory, records, and results are the purpose of physical education which can be found in Zhuang-Zi. The methods of physical education is the whole mind(專一), xixium(虛心), the feast of mind(心齋), forgetting everything(坐忘) etc. Physical education is to harmonious study with nature not artificially. The relation between teacher(coach) and student(player) is a relationship of mutual respect and consideration. The teacher(player) have to find the potential ability of student and he can help student realize potential ability of them.

• Korean Journal of Health Education and Promotion
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• v.3 no.1
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• pp.9-20
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• 2001

Since its declaration in the year 1986, the Ottawa Charter for Health Promotion1 continues to guide the global practice of health promotion. This situation is also true in Japan, and recently the notion of health promotion is substantiated to yield two of the national health promotion and disease prevention agendas, Kenkou Nippon 21(KN21; Healthy Japan 2010)2 in the year 1999 and Sukoyaka Oyako 21 (SO21; Healthy Parents and Children 2010)3 in the year 2000. The apparent characteristics of these two agendas are their multiplicity of numerical objectives.(omitted)

• Journal of the Daesoon Academy of Sciences
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• v.29
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• pp.1-36
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• 2017

The purpose of this article is to investigate the future prospects for establishing the True Donghak phase of Daesoon Thought. The True Donghak refers to 'the future prospect of having a true life, true thinking, and true living' in which enjoying the world in a state of good fortune became a true reality after the death of Suwun, according to faith in Gucheon Sangje. The correlation between "Attending to the Lord of Heaven" in Donghak, and "The Reordering Works of Heaven and Earth" in Daesoon shows the prospect of achieving the Daesoonist transformation into energy to gain true life and re-creation. The correlation between "Nourishing the Lord of Heaven" in Donghak and "Attending to Study and Attending to Law" in Daesoon show the transformation of Daesoon-reason into true thinking and renewing. The correlation between "Humanity is Divine" in Donghak and "The Salvation of Humanity is the Will of Heaven" in Daesoon show transformation into the practice of Daesoon for the true living and renewing. This investigation utilizes the literature review and the generation theory of life-philosophy to examine revelations regarding the conversation between Spirit and Mind. This is the future prospect for the establishing the True Donghak phase of Daesoon thought. It consists of a threefold connection among life, thinking, and living. The "public-centered spirituality of Daesoon Truth" which connects and mediates among people appears in three aspects. Firstly, it is thought to be the vision of the true life through the 'renewal of active, energetic power' bestowed by Gucheon Sangje. Secondly, it is thought to be the vision of true thinking through the "renewal via freedom from delusion". Thirdly, it is thought to be the vision of true living through the "renewal of true mind". To bring about the creation of true Donghak, Gucheon Sangje incarnated to the Korean peninsula instead of Suwun and the salvation of the world salvation now centers on Korea with regards to the threefold connection future prospect. Gucheon Sangje's revelation addresses and solves the postscript problem of Chosun and further establishes a Utopia. Suwun established Donghak but failed later on due to his lankiness. At last the true Donghak has been opened for the future by Gucheon Sangje and Jeongsan's fifty years of religious accomplishments. In the long run, it has been developed further by Woodang's Daesoon Jinrihoe.

• Journal of the Korea Society of Computer and Information
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• v.22 no.4
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• pp.99-105
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• 2017

Plato and Aristotle examined what the true spirit of physical education is and what kind of relationship it is, from the perspective of dividing into two parts of the body and mind. And the relationship between human body and mind, knowledge and behavior. Plato and Aristotle examined the harmonious combination of body and mind and what is the desirable relationship setting. In Plato's soul and body in philosophical centered ideological aspect, human education center emphasizes poetry education, but physical education is recognized as essential education for human education. Plato's body contour emphasizes the harmony of soul and body, not the superiority of the body to the mind. In Plato's education room, physical education should be preceded and then mental education should be done. I thought that there could be no independent souls without bodies. It is not an independent entity but a unified entity. Because there is a body, there is a soul. There is a soul, so a body exists. Aristotle thought that the body was more important than Plato, and that the body should be preceded by the soul.

• Journal of The Korean Association For Science Education
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• v.7 no.2
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• pp.71-87
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• 1987

The purpose of this study is to compare the status of high school science education in 1982 and 1986. The same questionaire was used for the survey of high school science education which was developed by Yu in 1982. The questionaires were responded by the principals. science head teachers. science teachers and students. The major findings are as followings: 1. The perception for the importance of science education has been declined. 2. The support for sciene science education has been reduced. 3. The entrance exanination for university or college is the serious bottleneck of high school science education. 4. It is very hard for science teachers to teach science as inquiry through the true experiment under the current situation of high school science education.