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      • 民間音樂團體의 活性化 方案 調査 硏究 : 寄附金 稅制를 中心으로

        丁洙夏 漢陽大學校 敎育大學院 1988 敎育論叢 Vol.5 No.-

        This research paper aims at proposing the activating plan of civilian music organizations by means of the contribution tax system. It would be meaningful to consider the present trend that administrative power is being transferred to civilian sector out of governmental sector in the fields of sciences, cultures, arts, and athletics. Civilian music organizations are different from government oriented music ones in that the financial aspect also plays an important part for the development of those organizations. It is especially so when considering the fact that management can not be overlooked. In this context the present writer investigates the financial aspect of the activation of civilian music organizations through literature-surveying and questionnaires. It comprises the general outline of management, the form of support or patron, the law basis of tax benefit in case of the investment to contribution fund, the social status and payment of professional musicians, contribution tax system and its application to civilian music organizations, some problems of the establishment of civilian music organizations, and so on. Additionally major problems are recognized in the paper and corresponding recommendations are sought out. The results are as follows: 1. The leading direction should be converted into civilian leading dimension for expanded activity of musical are to be expanded, and the characteristic feature of civilian music organizations should be independent corporation separated from other parts. 2. For long-term activation of civilian music organizations, the form of contribution should be that of assets contribution. In addition profit-making business using the contributed assets should be made at the same time. 3. In case of profit-making business all earnings should be translated as loss item. Of course amendments of the concerned tax law must be pursued in advance. In short musical arts should take on the form of independent corporation in civilian leading dimension, and run profit-earning business through the contribution of assets in view of longterm activation. In addition it is expected to be desirable that amendments of the concerned tax law must be made beforehand towards the direction of loss-reckoning of all earnings caused by the above business, for better performance of the proper purpose.

      • KCI등재
      • KCI등재

        Effect of core surface treatment on the fracture resistance of zirconia restoration

        정수하,김정미,박다령,박지영,배지명,오승한 대한치과재료학회 2014 대한치과재료학회지 Vol.41 No.3

        The purpose of this study was to examine the effect of acid-base surface treatment on the fracture resistance, which is one of main mechanical property, of zirconia restoration in order to improve the bonding characterization between zirconia core and ceramic veneer in bi-layered all ceramic restoration system. 10% hydrofluoric acid (HF) and 1 M sodium hydroxide (NaOH) were used as acid and base chemical solutions for surface treatment, respectively. Fracture-resistance tests were performed to investigate the effects of acid and liner treatment on the improvement of the bonding strength between veneer ceramics and zirconia. Specimens were divided into five groups (n = 4) according to the type of surface treatment: (1) Group A, no treatment (control); (2) Group B, liner treatment; (3) Group C, 10% HF etching for 60 s; (4) Group D, 10% HF etching for 60 s and liner treatment. All results of fracture resistance test showed that there were no significant differences between surface treatment types. Failure mode observation indicated that most specimens of Cerasys, Zmatch, and ICE groups showed cohesive failure mode regardless of the method of surface treatment. From the results of study, the short (1 min) treatment of zirconia in HF solution is supposed to be suitable for improving bond strength of zirconia restoration, but long (more than 30 min) treatment of zirconia in HF solution is expected to deteriorate the zirconia structure. Also, several factors such as liner and acid treatment, which improve the fracture resistance of zirconia restoration, seemed to depend on the type of zirconia materials.

      • KCI등재

        표면처리가 인공치와 의치상의 전단결합강도에 미치는 영향

        정수하,최재우,최병철,김시철 대한치과재료학회 2018 대한치과재료학회지 Vol.45 No.1

        The purpose of this study was to investigate the effect of retaining holes on the denture base, as well as primer application, on the shear bond strength of denture base resin to the denture base. Using Trubyte Biotone artificial teeth, we selected a maxillary first molar and prepared a total of 80 teeth. Each prepared tooth was polished flat using a dental bar. The polished specimens were placed in the center of a silicon mold (diameter 30 mm, height 23 mm) and were embedded with clear acrylic resin (Ortho Jet, Lang Dental, USA). Forty specimens were shaped, using Fisher bar # 701 at the central part of the alveolar surface, to form retention holes. Each denture base resin was transferred to the resin after surface treatment, as instructed by the manufacturer. The highest shear bond strength (36.2 MPa) was achieved by heat-polymerized resin, when the retention hole and the primer were applied to the artificial tooth. The lowest shear bond strength (11.8 MPa) was achieved by auto-polymerized resin, when the primer was applied to the artificial tooth. The combination of heat-polymerized resin and artificial tooth resulted in a complex fracture pattern, whereas auto-polymerized resin and artificial tooth showed an adhesive fracture pattern. 본 연구에서는 열중합 의치상과 인공치, 자가중합 의치상과 인공치의 치조면에 유지홀과 프라이머를 도포하여 전단결합강도에 미치는 영향을 비교해보고자 하였다. Trubyte Biotone 레진치는 상악 1대구치를 선택하여 총 80개 치아를 준비하였다. 준비된 치아는 치조면을 덴쳐바를 사용하여 평평하게 연마하였고, 연마된 시편은 실리콘 몰드(직경 30 mm, 높이 23 mm) 중앙에 인공치를 위치시키고 투명 아크릴 레진(ortho jet, lang dental, USA)으로 포매하였다. 이중 40개는 치조면 중앙부위에 fissur bur #701을 이용하여 유지홀을 형성하였다. 인공치에 의치상 레진 접합을 위해 테프론으로(지름 6 mm, 높이 3 mm) 몰드를 형성 후 파라핀 왁스를 채워 통상적인 매몰을 하였다. 각각의 의치상 레진은 표면 처리 후 제조사의 지시대로 레진 전입하였다. 열중합형 레진을 이용한 전단결합강도는 인공치아에 유지홀과 프라이머 도포를 하였을 때 가장 높은 강도값(36.2 MPa)을 나타내었다. 자가중합형 레진을 이용한 전단결합강도는 인공치아에 프라이머를 도포 하였을 때 가장 낮은 값(11.8 MPa)을 나타내었다. 열중합형 의치상과 인공치의 결합에서는 복합 파절 양상을 보였고, 자가중합형 의치상과 인공치의 결합에서는 접착파절 양상을 보였다.

      • 일부 치기공과 학생의 구강건강신념

        정수하 주성전문대학 2008 論文集 Vol.17 No.-

        This study is to investigate the factors affecting dental health behaviors, among the students in the department of dental technic who will deal with dental health works The subject includes, 503 students majoring in dental technic of the three universities located in Chungbuk, Jeonbuk, and Gyeongbuk, and factors, affecting their characteristics in terms of sociology of population, conviction regarding dental health, and dental health behaviors are analyzed 1 After inverstigating the differences in the belief of the subjects in oral health according to their general characteristics, it has been found that there were no significant differences in smoking or non-smoking and the monthly income of householders, but there were significant differences in sex, school year, age, religion and academic career 2 In terms of the differences in the belief of the subjects in oral health depending on the behaviors as to oral health, it has been shown that there were significant differences in the frequency of tooth brushing, number of taking in a between-meal snack, the existence of experiencing dental clinics for dental treatments, the period of last visit to dental clinics, the presence of experiencing dental treatments for preventive purpose and the use of oral hygiene devices 3 With regards to the relationship between the attitudes, subjects toward oral health and their belief in oral health, it has been noted that they were positively correlated to usefulness and cues to action concerning the interest, importance of oral health and the belief in it and they were negatively correlated to seventy usefulness, sensitivity and obstacles concerning the conditions of oral health and the belief in it 4 One of the most significant variables that had the effects on the belief in oral health was subjective conditions of oral health and it has been shown that the healthier one considered one's oral conditions, the higher belief one had in oral health

      • KCI등재

        사고억제가 강박사고에 미치는 영향: 역기능적 상위인지와 자기자비의 매개효과

        정수하,백용매 한국임상심리학회 2021 한국심리학회지: 임상심리 연구와 실제 Vol.7 No.1

        본 연구의 목적은 사고억제와 강박사고와의 관계에서 사고억제를 침입적 사고, 사고억제시도, 성공적 억제로 나누고, 각 하위요인이 강박사고에 미치는 영향에서 역기능적 상위인지와 자기자비의 매개효과를 검증하였다. 대구․경북지역 성인 471명을 대상으로 강박사고, 사고억제, 역기능적 상위인지, 자기자비척도를 사용하여 자료를 분석하였다. 그 결과 첫째, 침입적 사고, 사고억제시도는 강박사고에 정적 영향을 미쳤으나, 성공적 억제는 강박사고에 유의한 영향을 미치지 않았다. 둘째, 역기능적 상위인지는 침입적 사고와 강박사고와의 관계를 매개하는 것으로 나타났으나, 자기자비는 매개효과가 나타나지 않았다. 셋째, 역기능적 상위인지는 사고억제시도와 강박사고와의 관계에서 완전 매개효과를 보인 반면, 자기자비는 사고억제시도와 강박사고와의 관계에서 매개효과를 보이지 않았다. 넷째, 역기능적 상위인지는 성공적 억제와 강박사고와의 관계에서 매개효과를 보이지 않았으나, 자기자비는 성공적 억제와 강박사고와의 관계에서 매개효과를 보였다. 본 연구의 결과는 사고억제의 하위요인들이 강박사고에 영향을 미치는 과정에서 역기능적 상위인지와 자기자비의 매개역할을 검증하였다는 점에 의의가 있다.

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