• 한국지능시스템학회논문지
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• 제20권3호
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• pp.356-361
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• 2010

M. Demirci[Vague groups, J. math. Anal. Appl. vol.230, pp. 142-156, 1999] studied the vague group operation on a crisp set as a fuzzy function and estabished the vague group structure on a crisp set. In this paper we consider bi-groups which are studied by A.A.A. Agboola and L.S. Akinola. And we also will define vague bi-groups and fuzzy bi-functions and we investigate some basic operations on the vague bi-group and fuzzy bi-functions.

• Journal of applied mathematics & informatics
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• 제39권5_6호
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• pp.769-783
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• 2021

Demirci ((1999) Vague groups. J. Math. Anal. Appl. 230, 142-156) introduced the concept of vague groups as one of uncertain reasoning structures where indistinguishable operators separate points. In this paper, we consider vague groups in which an indistinguishable operator does not need to separate points because it seems more appropriate to handle ambiguous situations. For our purposes we generalize or redefine some notions such as: vague closed subset, vague subgroup, vague kernel and vague injectiveness. Consequently we generalize most of the known results and obtain some new additional fundamental properties of vague groups, some of which are similar to ones of ordinary groups.

• 한국콘텐츠학회논문지
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• 제16권4호
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• pp.275-288
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• 2016

제시되는 시각 자극의 모호함에 따라 디자인 아이디어의 창의성이 어떻게 달라지는지 알아보기 위해 시각자극의 모호함의 세 가지 수준 (Vague, Ambiguous, Definite) 과 아이디어 교류 유무(Idea sharing Before & After)의 두 가지 수준으로 아이디어 스케치들을 구분하여 의사결정나무분석법을 시행하였다. 그리고 이를 통해 각 그룹의 아이디어 스케치의 창의성 예측점수와 그 예측점수에 영향을 끼친 변인은 무엇인지 그리고 그 기준은 어떠한지 살펴보았다. 분석 결과, 시각 자극의 모호함과 아이디어 교류의 유무에 따라 아이디어 스케치의 창의성 예측 점수가 높은 경우에 있어 중요한 영향을 미친 예측변수들은 종결저항, 독창성, 정교성, 추상성, 컨셉쌍 간의 유사도로 나타났다. 즉, 이 5가지 변수들은 유창성과 개념결합전략, 새 개념의 등장여부, 개인 창의력 지수, 창의적 문제해결성향보다 디자인 아이디어 스케치의 창의성에 더 연관이 있는 요인들임을 알 수 있었다. 그리고 아이디어 교류 후, Vague 자극을 제시 받은 집단이 창의성 예측값이 가장 높게 나타났고, 아이디어 교류 후, Definite 자극을 제시 받은 집단이 창의성 예측값이 가장 낮게 나타났다.

• Archives of Reconstructive Microsurgery
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• 제20권2호
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• pp.102-107
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• 2011

Purpose: As clinical manifestations of thoracic outlet syndrome are vague pain or symptoms in upper extremity, the diagnosis of the disease is delayed or misdiagnosed as cervical HNP, shoulder pathologies, or peripheral neuropathies. In that reason, many patients spend time for unnecessary or ineffective treatments. We report the results of our thoracic outlet syndrome cases, which were treated by conservative care or surgical treatment. Materials & Methods: Twenty five cases, diagnosed as thoracic outlet syndrome since 1999, were reviewed retrospectively. Physical examinations including Adson's and reverse Adson's test, hyperabduction test, costoclavicular maneuver, and Roo's test, plain radiography of shoulder and cervical spine, MRI of neck or brachial plexus, and EMG were checked. If subjective symptoms were not improved after conservative treatments over three months, surgical treatment were performed. Nine patients were performed operative treatment and the others had conservative treatment in outpatient clinic. Postoperative improvement of symptoms and the follow up period, and the results of conservative care were reviewed. Results: Among five physical examinations, mean 1.75 tests were positive, and EMG has little diagnostic value. MRI were performed in twenty cases and compression of brachial plexus were found in 6 cases (30%). Ten patients out of 16 conservative treatment group had excellent improvement of symptoms, and 5 had good results. Eight patients out of 9 operative treatment group had excellent improvement with mean 5.1 months of follow-up period. Conclusion: Diagnosis of thoracic outlet syndrome is difficult due to bizarre and vague symptoms. However if the diagnosis is suspected by careful physical examinations, radiologic studies, or nerve conduction studies, conservative care should be done as initial treatment and at least after three months, reassess the patient's condition. If the results of conservative treatment is not satisfactory and still the thoracic outlet syndrome is suspected, surgical treatment should be considered. Conservative treatment and operative technique are the valuable for the treatment of this disease.

• International Journal of Contents
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• 제12권3호
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• pp.17-21
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• 2016

The purpose of this study was to obtain qualitative data on Korean-American dry cleaners' concerns about work-related health and safety and their attitudes toward the use of PPE(Personal Protective Equipment). Two focus group discussions were conducted with convenient samples of Korean-American drycleaners in middle-eastern state. A total of 13 individuals participated in two focus groups. Participants had concerns as both owners and workers. As owners, they were concerned mostly about compliance of environmental regulation and economic depression. The participants knew very little about the hazards of chemical exposure and expressed vague concerns about chemical exposure and health. Majority of participants do not use PPE and had no intention of using it in the future because of their limited knowledge about the hazardous nature of chemical exposure. The findings from this study would guide the development of intervention to increase drycleaners knowledge of chemical exposure and use of PPE.

• 한국과학교육학회지
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• 제17권1호
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• pp.31-44
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• 1997

One class of grade 7 was chosen as a control group, and the other as an experimental group. The control group watched only a film of motion in weightless situation, but the experimental group had a contrastive discussion before watching the film. In pretest, pupils were given contrasted views between the pre-Galilean and post-Galilean about falling and horizontal motion of bodies, and asked to choose one from two points of view and to write the reason why they choose it. After the pretest, control group students watched the same film as the experimental group did. On the falling problem, the control group ignored the contents of the film or regarded related contents as not related contents. However, through the contrastive discussion, experimental group pupils reconstructed their past vague ideas and noticed the cause of falling which was not perceived by the control group. On the horizontal motion, some in the control group agreed with post-Galilean view points after watching the film. Some of the pupils in the experimental group agreed with the post-Galilean viewpoint after performing the contrastive discussion. However, most of them agreed after watching the film. So we can conclude that the contrastive discussion which helped students to reconstruct their ideas made the difference between the two groups.

• 한국보육학회지
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• 제18권4호
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• pp.123-143
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• 2018

본 연구에서는 포커스 집단 인터뷰를 통하여 어린이집 원장의 남자교사 채용에 관한 인식과 개선방안을 탐색해 보고자 하였다. 이를 위해 보육현장에서 남자교사를 채용하였거나 실습을 지도한 경험이 있는 어린이집 원장 8명을 연구대상으로 선정하였다. 자료수집방법으로는 포커스 집단 인터뷰 방법을 적용하였고 매회 2시간~2시간 30분 정도, 총 4회의 면담이 진행되었다. 본 연구에서 수집된 자료를 통하여 분석해 본 결과 어린이집 원장의 남자교사 채용에 관한 인식은 (1) 다가올 어려움에 대한 막연한 두려움 (2) 보육현장 조직문화에서의 남자교사의 명과 암 등의 2가지 주제와 6개의 하위주제로 나타났다. 도출된 결과를 구체적으로 살펴보면, 다가올 어려움에 대한 막연한 두려움 주제에서는 '행정적인 불이익', '성과 관련된 사회적 분위기', '역할 수행에 대한 불확실성' 등의 하위주제를 도출하고, 보육현장에서의 남자교사의 명과 암 주제에서는 '여성중심의 조직 문화와 적응', '보육현장의 비전', '보육현장에서의 남자교사의 역할' 등의 하위 주제가 도출되었다. 다음으로 보육현장에서 남자교사의 채용을 위한 개선방안에 관해서는 보육현장으로 진입하기 위한 남자교사의 길의 주제가 도출되었는데, 이 주제에서는 '영유아 보육 경험 및 실습 기회 확대', '남자가 아닌 개인의 문제라는 인식으로의 전환', '남자로서의 장점 극대화', '시스템의 변화' 등의 4가지 하위주제가 도출되었다. 이는 무엇보다도 남자교사 채용을 위해서는 보육현장에서 교사 성불균형 문제를 해결해야 함을 시사하고 있다.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 춘계학술발표논문집
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• pp.845-847
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• 2009

In thecate dinoflagellates, the thecal plate pattern has been considered to be important criteria in their classifications. Due to this fact the shape of the theca and the arrangement of the theca were studied. In the pictures, the distinctions between the plates in the cells were so vague that I drew a diagram to illustrate the plate pattern. To identify the genus Protoperidinium, the shape of the first apical plate and the second anterior intercalary plate were used. Depending the shape of first apical plate, will be designated as meta(4), meta(5), para(4), para(5) or para(6). The shape of first apical plate is considered an important factor. From this point of view, the genus Protoperidinium as a group of planktonic protist in the coastal environment was classified.

• 보건행정학회지
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• 제11권2호
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• pp.58-84
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• 2001

This study was conducted to explore the relationship between the efficiency and its organizational determinants of tile Community Mental Health Centers(CMHCs). Data are obtained from 81 personnel of 27 CMHCs from Sept. to Oct. in 1999(19 in Kyunggi province, 7 in Seoul City and 1 in Chunchon, Kangwon province). Major findings of this study are as follows. 1. DEA is a mathematical programming technique that optimizes the relative efficiency ratio of inputs over outputs for each decision-making unit(DMU). It produces a summary scalar efficiency ratio for each DMU of CMHCs. It assessed multiple inputs and multiple outputs simultaneously, and compared to specific peer group of CMHCs. 2. Organizational determinants of DEA efficiency of CMHCs we proved as advertisement(＋), location of CMHCs(in public facility)(＋), area of facility(＋), period of operation(＋), job satisfaction(＋), clarity of work-role(vague), cohesion(－), rate of certified personnel(＋), number of referral(＋), and voluntary service time(－).

• 수완나부미
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• 제5권2호
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• pp.81-99
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• 2013

Đoạn tuyệt is the representative of not only Nhất Linh's literary life but also of the Tự Lực Văn Đoàn [Self-Strength Literary Group]. Đoạn tuyệt's contributions are emphasized in the following aspects: 1) critique of the feudal family model, 2) an advocate of female and individual liberation, 3) nationalistic content, though rather vague. Based on analysis of gender power relations in the masculinization of femininity exemplified in the character Loan of the novel, this paper addresses the following points: - In Đoạn tuyệt, the woman is eager to free herself from feudalist ties not to construct her own identity but to identify her with men's identities. - The construction of new feminine identities was conditioned in new rising discourses of Western modernity-based nationalisms in pre-revolutionary Vietnam. - The feminization of masculinity echoes the crisis of Vietnamese masculine in facing colonial power.