• Title/Summary/Keyword: Category theory

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Life Experience of Patients suffering from Crohn's Disease (크론병 환자의 삶의 경험)

  • Yoo, Yang-Sook;Lee, Eun-Ju;Cho, Ok-Hee
    • Journal of Korean Academy of Nursing
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    • v.43 no.3
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    • pp.409-419
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    • 2013
  • Purpose: The purpose of this study was to describe and explore the experience process of life of patients with Crohn's disease. Methods: Using a grounded theory methodology, 24 interviews were performed with 7 men and 5 women, 17-47 years of age, suffering from Crohn's disease. Results: 'Tuning of two conflicting lives' was identified as the core category, and 5 subcategories were identified and they were integrated into the core category. The identified outcomes were 'Living a withdrawn life', 'coping flexibly', 'drifting with tangled emotions' and 'maintaining long-term remission'. Conclusion: When caring for these patients, it is important to identify needs, allow patients to express what they want at that moment and support them in maintaining a daily life that can be perceived as normal.

SOME REMARKS FOR KÜNNETH FORMULA ON BOUNDED COHOMOLOGY

  • Park, HeeSook
    • Honam Mathematical Journal
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    • v.37 no.1
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    • pp.7-27
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    • 2015
  • Kuneth formula is to compute (co)-homology of $A{\otimes}B$ for known (co)-homology of the complexes A and B. In the ordinary case, this is done by using elementary homological methods in an abelian category. However, when we consider the bounded cochain complex with values in $\mathbb{R}$ and its structure as a real Banach space, the techniques of homological algebra for constructing K$\ddot{u}$nneth type formulas on it are not effective. The most notable facts are the image of a morphism of Banach spaces is not necessarily closed, and also the closed summand of a Banach space need not be a topological direct summand. The main goal of this paper is to construct the theory of K$\ddot{u}$nneth type formula on bounded cohomology with real coefficients in the suitable category of Banach spaces with some restricted conditions.

The Effectiveness of Streaming Video with Web Based Text in Online Course: Comparative Study on Three Types of Online Instruction for Korean College Students

  • HEO, JeongChul;HAN, Su-Mi
    • Educational Technology International
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    • v.14 no.1
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    • pp.1-26
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    • 2013
  • This study is to identify whether three types of online instruction (text-based, video-based, and video-based instruction without text) and age category have a different influence on students' comprehension and motivation. Online students were randomly assigned to one of six groups, and they attended two-week online lectures via Course Management System. The comprehension test and the short form of IMMS were implemented when 114 participants accomplished two-week online lectures. The results revealed that using instructional video in online instruction is more effective instructional medium than text only in order to promote learner's motivation. Besides, older adults aged 41-60 are significantly different from younger adults (21-40 years old) in terms of students' comprehension. Furthermore, three types of online instructions are likely to be influenced by age category.

FINITE QUOTIENTS OF SINGULAR ARTIN MONOIDS AND CATEGORIFICATION OF THE DESINGULARIZATION MAP

  • Helena Jonsson;Volodymyr Mazorchuk;Elin Persson Westin;Shraddha Srivastava;Mateusz Stroinski;Xiaoyu Zhu
    • Journal of the Korean Mathematical Society
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    • v.60 no.6
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    • pp.1255-1302
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    • 2023
  • We study various aspects of the structure and representation theory of singular Artin monoids. This includes a number of generalizations of the desingularization map and explicit presentations for certain finite quotient monoids of diagrammatic nature. The main result is a categorification of the classical desingularization map for singular Artin monoids associated to finite Weyl groups using BGG category 𝒪.

A Study on Dongjungseo(董仲舒)'s Yin-Yang theory - Yang Central Idea - (동중서(董仲舒)의 양(陽) 중심 사상에 대한 고찰 -"황제내경(黃帝內經)"과의 비교(比較)를 통하여-)

  • Kim, Sung-Ji;Kim, Su-Jung
    • Journal of Korean Medical classics
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    • v.22 no.3
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    • pp.145-160
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    • 2009
  • The most famous thought of Dongjungseo's must be 'the Sky-Earth Response Theory.' The theory includes the Same 'Gi' Correspondence(the Same Category Homology) and explains the relationship between the nature and the men based on Yin-Yang. This theory, commonly studied by the scholars of the political science, however, has been constituting the foundation of the oriental medicine. Also, he insists many other theories related to Yin-Yang including the natural calamity, the treatise of human nature, the name and reality, and the national school of Confucianism, etc. This paper covers the Yin-Yang theory, particularly with regard to ethics. politics, human nature of Dongjungseo, and the comparison of his Yin-Yang and that of the Emperor Inner Cannon. Dongjungseo insists on the harmony of Yin-Yang just only in the area of health care, excluding other areas such as state and family governance. However, in contrast, he asserts the Yang central idea for what he defined as the order of a family, a society and a state. This presents his contradiction and logicality. In the last part of this paper, his logical flaws would be discussed and analysed. However, he is a lucky scholar, because his Yang central idea has been successfully governing peoples for a long time, despite such imperfection and contradiction in his studies.

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Content Description on a Mobile Image Sharing Service: Hashtags on Instagram

  • Dorsch, Isabelle
    • Journal of Information Science Theory and Practice
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    • v.6 no.2
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    • pp.46-61
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    • 2018
  • The mobile social networking application Instagram is a well-known platform for sharing photos and videos. Since it is folksonomy-oriented, it provides the possibility for image indexing and knowledge representation through the assignment of hashtags to posted content. The purpose of this study is to analyze how Instagram users tag their pictures regarding different kinds of picture and hashtag categories. For such a content analysis, a distinction is made between Food, Pets, Selfies, Friends, Activity, Art, Fashion, Quotes (captioned photos), Landscape, and Architecture image categories as well as Content-relatedness (ofness, aboutness, and iconology), Emotiveness, Isness, Performativeness, Fakeness, "Insta"-Tags, and Sentences as hashtag categories. Altogether, 14,649 hashtags of 1,000 Instagram images were intellectually analyzed (100 pictures for each image category). Research questions are stated as follows: RQ1: Are there any differences in relative frequencies of hashtags in the picture categories? On average the number of hashtags per picture is 15. Lowest average values received the categories Selfie (average 10.9 tags per picture) and Friends (average 11.7 tags per picture); for highest, the categories Pet (average 18.6 tags), Fashion (average 17.6 tags), and Landscape (average 16.8 tags). RQ2: Given a picture category, what is the distribution of hashtag categories; and given a hashtag category, what is the distribution of picture categories? 60.20% of all hashtags were classified into the category Content-relatedness. Categories Emotiveness (about 4.38%) and Sentences (0.99%) were less often frequent. RQ3: Is there any association between image categories and hashtag categories? A statistically significant association between hashtag categories and image categories on Instagram exists, as a chi-square test of independence shows. This study enables a first broad overview on the tagging behavior of Instagram users and is not limited to a specific hashtag or picture motive, like previous studies.

A Study on the Interrelationship with Interior space and Furniture - Focused on Peirce's Theory - (실내 공간과 가구의 상호관계성 연구 - 퍼스의 기호학을 중심으로 -)

  • Baek, Jung-Min;Hur, Bum-Pall
    • Korean Institute of Interior Design Journal
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    • v.20 no.3
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    • pp.127-134
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    • 2011
  • Interior design has diverse functions and roles according to recent changes in life and cultural style. As the meaning of space varies, the furniture as another element of the space should also be planned and included in the beginning of the project to accomplish its functional role on the finished space and not only be placed. The relationship between Interior space and furniture should be studied and understood at the same realm because they have a complementary relationship. The final destination of design, which is very challenging to accommodate people, the designer needs to approach to the interior space and furniture in a cognitive view. The study of Semiotics views in a knowledgeable and epistemological way every element as a sign and by the relationship of their characters it makes to understand the structure of the signs. Charles Sanders Peirce, a leader of Semiotics in USA, classified the structure of Sign into Representamen, Object and Interpretant to complete the theory which could systematically describe physical characteristic and function of the Sign and its significance in practical use. Peirce stated that all nine types of Sign would be generated if each structure of Sign in combined with three categories of Sign such as Firstness, Secondness, and Thirdness. In this study, based on Peirce's nine types of Sign, the interrelationship between space and furniture in interior design was investigated with examples in Living Space, Office Space, and Commercial Space, respectively. In the category of Representamen, which can be classified into Qualisign, Sinsign, and Legisign, it is a feature of Living Space to be expressed in harmonized and stabilized ways. In Office Space vertical/horizontal elements and open expression are differently showed depending on fields. And splendid and interesting expressions are showed in Commercial Space. In the category of Object, which can be classified into Icon, Index, and Symbol, each function of Sign has distinctly been showed as Symbol in Living Space, Index in Office Space, and Icon in Commercial Space, respectively. In the category of Interpretant, which can be classified into Rheme, Dicisign, and Argument, it was found that space image of Living Space is transferred to human being, Office Space regulates human bing, and Commercial Space binds human being with the space. In conclusion the function of the interior space and the furniture could be explained in another way with re-interpretation of interrelationship among interior space elements in the concept of Semiotics. It is expected that interpretation with Semiotics in interior design will grow to new theory of design.

A Study of the Lived Experiences of Clients Receiving Long-Term Hemodialysis (장기 혈액투석 수혜자들의 생활경험에 관한 연구)

  • 신미자
    • Journal of Korean Academy of Nursing
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    • v.27 no.2
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    • pp.444-453
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    • 1997
  • The purpose of this study was to construct a grounded theory as the basis for nursing intervention by describing and analysing the holistic lived experiences of clients receiving long-term hemodialysis. The subjects of this study were fifteen persons receiving regular hemodialysis regimen at artificial kindey treatment centers in two different university hospitals, and who were able to participate in conversation and were available for long and dup interviews. Eight of the subjects were male and seven were female and their ages ranged from 30's to 60's. The length of the hemodialysis experience ranged from two months to six years. The collection and analysis of data were done in accordance with the grounded theory methodology of Strauss & Corbin. The method to collect the data mainly depended. on long and deep interviews, participant observation and focused group interviews and the equipment used to collect data were a portable tape recorder and field notes. The study is summarized as follows : 1. The meaning of holistic lived experiences of clients receiving long -term hemodialysis was found to be uncertainty. which was identified as the core category. 2. The main categories following the core category were found to be shock, ambiguity, social support and quality of life. 3. Through the main category the type of behavior newly formed by clients receiving long-term hemodialysis was found to be as follows. That is to say, in the circumstances of shock caused by the identified fact and the ambiguity of hemodilysis they formed a quality of life based on social support, which was found to be a kind of chaotic phenomenon. 4. The lived experiences of clients receiving long-tern hemodialysis was found to include nine categories : emotional shock, feelings of isolation, burden, unclearness, dependency, help from others, coping strategies, maintenance of self-esteem and transitional life. 5. The intervening factors influencing each category are as follows : 1) The factors influencing 'emetional shock' were found to be set age, the level of knowledge received in advance, locus of control, the period of struggle against the disease before hemodialysis and whether any serious illness existed. 2) The factors influencing 'feelings of isolation' were found to be religion and the length of the hemodialysis experience. 3) The factors influencing 'burden' were found to be sex, economic situation, employment status and the length of the hemodialysis experience. 4) The factors influencing 'unclearness' were found to be sex, age, religion. economic situation, the length of the hemodiaysis experience, whether they had had a transfusion and whether there were any complications. 5) The factors influencing 'help from others' were found to be religion. economic situation, past experiences and whether family members lived together. 6) The factors influencing 'coping strategies' were foung to be age, level of education, experiences of illness and locus of control. 7) The factors influeruing 'maintenance of self-esteem' were found to be the length of the hemodialysis experience and self-actualization. 8) The factors influencing 'transitional life' were found to be age, religion, economic situation, employment status. locus of control. past experiences and whether there was a plan for a kidney transplant.

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Music and Imagery as a Method for Mindfulness: Exploration of Music Therapy Interns' Experiences (마음챙김의 방법으로서 음악심상: 예비음악치료사의 경험을 중심으로)

  • Kim, Young Shil
    • Journal of Music and Human Behavior
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    • v.15 no.2
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    • pp.93-114
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    • 2018
  • This study aimed to investigate the use of music and imagery (MI) as a method for promoting mindfulness. A total of 11 music therapy interns participated in an MI group over 8 weeks. Statements from participants during the program were transcribed and analyzed using the method of modified grounded theory. The results showed that the participants' statements fell into three categories: awareness, acceptance, and distancing. For each category, subcategories were identified. For the category of awareness, the subcategories were emotion, sensation, and thoughts. For the acceptance category, the subcategories were facing and broadening viewpoints. For the distancing category, the subcategories were dissociation from emotions. Each subcategory was further analyzed. The results showed that the participants' experiences were similar to one another in terms of type but differed in terms of dimension varied. These results support the use of MI for increasing mindfulness and reducing burnout in music therapy interns. Further studies are recommended to investigate the factors for the experience of mindfulness induced by MI processes.

Occupational Socialization Patterns of Librarians : A Qualitative Multimethod Study (사서의 직업사회화 경험 유형 - 질적 다방법연구 -)

  • Kim, Kapseon
    • Journal of Korean Library and Information Science Society
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    • v.44 no.1
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    • pp.177-199
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    • 2013
  • Using a qualitative multimethod approach, this study was to construct a substantive theory about occupational socialization of librarians. Through theoretical sampling, 42 participants were in-depthly interviewed at three studies, i. e., phenomenological, ethnographic, and grounded theory approach. These data were analyzed and finally integrated using grounded theory approach. 'Acquiring Social Recognition as Information Professionals' was emerged the core category for describing and guiding the occupational socialization process. Six patterns were discovered: 'the Beliefs', 'the Seeking-Success', 'the Work-Obiligations', 'The Stucked', 'the Self-Pride', 'The Frustrated' Also, it discussed characteristics and socialization strategies of the pattern.