청소년의 스포츠 참가유형별 비행성향에 관한 연구

조동진,김재현,김상대 조선대학교 스포츠과학연구소 2000 스포츠科學硏究 Vol.11 No.-

The purpose of this study was to investigate youth's misconduct tendency according the type of sport. For this study the self-report questionnaires were administrated to total sample of 528 middle and high school students. The results were as follows. 1. In boys, the first year student in high school and the third year students in middle school have higher misconduct tendency. In girls, the second year students have higher misconduct tendency. 2. Those who have had experience in being players in sports have higher misconduct tendency 3. Those who have taken part in a sport have higher misconduct tendency. 4. In boys, those who have taken part in a sports twice to three times or more than four times a week have higher misconduct tendency. In girls, those who have taken part in a sport more than four times a week have higher misconduct tendency. 5. In both of boys and girls, those who challenge to sports games more than ten times a week have higher misconduct tendency. 6. In boys, those who see sports games more than ten times a rear have higher misconduct tendency. In girls, those who see sports games four to six times a year have higher misconduct tendency.

지능형 도로 정보 안내 시스템

조재현,엄성용 서울여자대학교 자연과학연구소 1997 자연과학연구논문집 Vol.8 No.-

If we have any information on the current traffic conditions, it will help us to set up our driving and/or transition plan more effectively. Several traffic information systems are proposed while some are under development. However, these systems have the following drawbacks. First, they do not support complex cost functions. Most of them find only the shortest path between two given points on the map, while sometimes people want to fine a path with less traffic congestion, a path with which they could spend less gasolin, and/or less time, and so on. In addition, they do not consider the effects of cross-roads (especially those with traffic lights) in case of cars or effects of transitions between different lines in case of subway or railroad systems. Note that the direction to take at the cross-road and the period assigned to each signal are very important factors, taking sometimes the most part of the total time spent. These factors should be considered in the traffic information system to reflect the real world we live in. To overcome the drawbacks of existing systems, we propose a new traffic information system.

전후 베트남 분단의 원인과 통합의 길

조재현 한국외국어대학교 동남아연구소 2002 東南亞硏究 Vol.11 No.-

Human Immunodeficiency Virus (HIV) 感染者에서 血中 可溶性 Interleukin 2 受容體와 Neopterin의 變動

趙相椿,成在鉉,金政澈,鄭泰浩 慶北大學校 齒科大學 1991 慶北齒大論文集 Vol.8 No.1

Lymphocytes upon activation release a soluble form of interleukin-2 receptor. Increased serum levels of soluble IL-2R have been noted in a variety of lymphoproliferative disorders and in conditions associated with active T cell responses. Activated T-cells also release a interferon-gamma that is capable of activating in macrophages a guanosine triphosphate(GTP) cyclohydrolase leading to increased synthesis and excretion of neopterin. Thus, soluble IR-2R and neopterin can be utilized as markers for the clinical assesment of cell-mediated immune responses. This study has been conducted to investigate the immune responses in vivo of HIV seropositive individuals. Twenty-eight healthy subjects were also studied as controls. HIV-infected individuals had elevated soluble IL-2R and neopterin levels. A significant positive correlation was found between soluble IL-2R and neopterin levels in HIV-infected individuals. According to the ROC curves soluble IL-2R reflects more discriminating effect than neopterin. These data indicate that soluble IL-2R and neoptein might be useful parameters for screening of HIV-positives. Moreover, they might indicate the possible central role of T-cell and macrophage acivation in the progression of HIV infection. J. Kyungpook Nat. Univ. Sch. Dent. Vol.8, No.1, 127∼140, 1991.

Profile Index에 따른 Panelipse Ⅱ 放射線 像層의 變化

曺哲鎬,成在鉉 慶北大學校 齒科大學 1985 慶北齒大論文集 Vol.2 No.1

This research was made to investigate the change of the image layer and of the vertical and horizontal magnification on the Panelipse radiographic image by the control of profile index. Using the Panelipse, a series of 60 exposures were taken with the steel balls placed in the holes of the plastic model plate, and then evaluated by 4 observers. Two points were assigned for a reading of sharp, one for middling sharp, and zero for unsharp. Each ball image then could be given a total reader score of 0 to 8. The author analyzed the image layer as defined by a sharpness score of 6 or more. The resutls obtained were as follows: As the profile index was increased, the shape of the image layer was not changed, and the width of the image layer was increased, and the position of the layer shifted away from the rotation center. As the profile index was increased, the ranges of vertical and horizontal magnification was increased, especially the ranges of horizontal magnification was greater than that of vertical magnification.

핸드볼 지도행동에 대한 코치와 선수의 인식 비교

조동진,김재현 조선대학교 스포츠과학연구소 2000 스포츠科學硏究 Vol.11 No.-

The purpose of the present study was to compare the perceptions of handball instructor's coaching behaviors to those of their players' coaching behaviors. The subjects of this study was divided into two groups. One group was the handball instructs and the other was their players who live in 5 major cities in Korea. The data was collected by the questionnaire method. The result are as follows. 1. Explain and instruction : The result shows that 'explain and instruction 'is given to the players more whole, or group rather than individual, but they are not offered the pertinent feedback to fit their own needs. 2. Encouragement and feedback : The instructors do not give a proper educational cues such as negative demonstration, positive feedback, praise and encouragement-prompt to their players in proper ways and that the players have some troubles acquiring and developing their motor skills. 3. Non-instructional behaviors : The priority of order between instructors' coaching behaviors and the players' is different from each other. 4. Condemnation : The priority of order between instructors' coaching behaviors and the players' is identical order.

인터넷 배너광고 메시지의 질과 양이 광고효과에 미치는 영향

조재현 한국방송광고공사 2001 광고연구 Vol.0 No.53

인터넷 수용자들은 기존 매체의 수용자 특성에 비해 더욱 적극적으로 정보를 추구하는 경향이 있다. 이러한 수용자 특성을 만족시키는 웹 광고를 만들기 위해서는 그 광고가 포함하고 있는 메시지의 양과 질이 매우 중요한 요소로 작용할 것이다. 따라서 인터넷수용자들에게 차별적인 정보와 양질의 정보를 제공하기 위해서 베너광고 메시지를 어떻게 구성할 것인가를 고민해 볼 필요가 있겠다. 본 연구에서는 정교화 가능성 모델과 관련하여 웹사이트를 이용한 실험을 통해 배너광고 메시지의 질과 양이 인터넷 이용자의 광고에 대한 태도, 메시지 동의수준에 어떠한 영향을 미치는지를 살펴보고자 했다. 분석결과 독립변인인 광고메시지의 질의 경우는 두 가지 종속변인에서 주효과를 보이며 모두 통계적으로 유의미한 결과를 도출한 반면, 광고메시지의 양은 메시지에 대한 동의수준에서만 유의적인 결과를 나타냈고 두 독립변인간의 상호작용효과가 각각의 종속변인에서 나타나 서로 영향을 주고 있음을 알 수 있었다. 이런 연구결과는 향후 인터넷 베너광고 집행시 광고목표에 따라 상이한 메시지전략이필요함을 시사하고 있다. Internet users are more likely to seek information actively, compared to users of other media. One important characteristic proper to Internet users is the fact that message quality and quantity on Internet banner ads constitute one of the most determining influence factors on them. As a result, it is necessary to take into account message quality and quantity for evaluating Internet banner ads when developing an effective Internet advertising strategy. The purpose of this research is to measure the effects of manipulating message quality and quantity on Internet banner ads in relation to the attitude of users towards such ads and the level of message agreement with a group of experiment participants. Results show that the manipulation of message quality had a strong impact on attitude toward the ad and on the level of message agreement. Results also show that manipulation of message quantity has a strong impact on level of message agreement. Additionally, an interaction effect of message quality and quantity was found to exist on attitude toward banner ads and level of message agreement respectively. Finally these results reinforce the need for developing a concrete message strategy, in accordance with overall ad goals, in Internet banner ads.

스포츠시설 이용자의 구매만족 요인 연구

조동진,김재현,김상대 조선대학교 스포츠과학연구소 1999 스포츠科學硏究 Vol.10 No.-

This study uses three factors of sport facilities: a location, facilities, and staffs’ service attitude, to grasp how they have influence on purchase satisfaction experienced by Purchase activities through rising sport facilities and concludes as follows. Staffs’ service attitude is the most influential in the purchase satisfaction, while the location is not very significant. In addition, dissatisfied location and facilities tends to be offset by the staff’s service attitude. Populations who intend to complain with behavior, despite of satisfaction are ; First, in a population statistic variable, women are higher than men by sex ; the younger by age, office workers who earn in the range of 1,500,000 won to 3,000,000 won by income and those who finished a university by education. As a result of verifying a significant level of a correlation coefficient of each population, an occupation, income, and education are likely to function as a regulative variable for complaint behavior purpose. In other words, a part of the population statistic variable can be used for promoting efficiency by regulation of satisfied customers’ purpose of complaint behavior. Second, in case of use types, population with swimming by joining events and in a method of using a sport center, those who apply for more than one year are more likely to complain with behavior. But they do not play a role as a regulating variable of complaint behavior purpose, despite of satisfaction.

농구선수와 일반학생의 성격특성에 관한 연구

조동진,김재현,김승동 조선대학교 스포츠과학연구소 1998 스포츠科學硏究 Vol.9 No.-

The purpose of this study is to clarify the difference of personality between college basketball players and college students, 81 college basketball players and 120 college students answered a questionnaire which is consisted of 7 indices (kindness, stability, domination, mobility, boldness, forgiveness and toughness). 1) A comparison of personality between college basketball players and college students. There is no difference in kindness, mobility and forgiveness between the two. However, in cases of stability, domination, boldness and toughness, basketball players are significantly different from college students. Thus, it can be concluded that college basketball players are more stable, bold and tough than college students. 2) A comparison of personality among positions of basketball players (guard, forward and center forward). There is no difference in mobility and stability among positions of basketball players. Guards get more scores in boldness and dominance, Forwards get more scores in toughness and Center Forwards get more scores in kindness and forgiveness.

4종 전자근관장측정기의 정확성과 일관성에 관한 in vitro 연구

조재현,금기연,이승종 대한치과보존학회 2006 Restorative Dentistry & Endodontics Vol.31 No.5

이번 연구는 서로 다른 4개의 전자근관장측정기의 정확성을 측정하고 각각 0.5지점과 Apex지점에서의 일관성을 비교하고자 하였다. 40개의 발치된 상하악 소구치를 대상으로 치수강 개방 후 alginate model에 고정시키고 근관장을 측정하였다. 사용된 전자근관장측정기는 Root ZX (Morita, Tokyo, Japan), SmarPex (META, Seoul, Korea), Elements Diagnostic Unit (SybronEndo, CA, USA), E-Magic Finder Deluxe (S-Denti, Seoul, Korea)이다. 먼저 모든 치아에서 4개의 전자근관장측정기를 사용하여 0.5지점과 Apex지점에서 근관장을 측정하여 한 치아당 8개의 측정값을 얻었다. 다음으로 치아를 각 전자근관장측정기당 10개씩 4개의 그룹으로 나누어, 각각 제조사의 지시대로 Root ZX, Elements Diagnostic Unit 및 E-Magic Finder Deluxe는 "0.5"지점에서, SmarPex는 ''Apex" 지점에서 file을 치아에 cement로 고정시켰다. 이후 치근단부 4 mm를 삭제하여 100배율의 Image ProPlus로 관찰하여 file 끝에서 주근단공의 외연까지의 실제거리를 측정한 후, 4개의 전자근관장측정기의 0.5지점 및 Apex지점에서 file 끝과 주근단공 사이의 거리를 계산하여 비교하였다. 그 결과 Root ZX와 E-Magic Finder는 실험군 100%, SmarPex는 90%, Elements Diagnostic Unit는 70%에서 주근단공과의 거리가 임상적 허용범위인 土0.5 mm 이내에 있었다. 또한 각 전자근관장측정기마다 0.5지점과 Apex지점에서의 근관장의 표준편차와 사분위 범위를 구하여 두 지점간의 일관성을 비교한 결과, Root ZX, E-Magic Finder는 0.5지점과 Apex지점에서 비슷한 일관성을 보였으며 SmarPex와 Elements Diagnostic unit는 Apex지점에서 0.5지점보다 더 높은 일관성을 보였다. 전자근관장측정기는 근관 내의 조건에 관계없이 근첨협착부에서 항상 일정한 거리를 재현해 낼 수 있는 일관성이 중요하므로, 이렇게 0.5지점 또는 Apex지점에서의 일관성이 증명된다면 실제 임상에서 사용할 때 전자근관장에서 일정한 거리를 가감하여 사용할 수 있다. The purpose of this study was to evaluate the accuracy and the consistency of four different electronic apex locators in an in vitro model. Fourty extracted premolars were used for the study. Four electronic apex locators (EAL) were Root ZX, SmarPex, Elements Diagnostic Unit (EDU), and E-Magic Finder Deluxe (EMF). After access preparation, the teeth were embedded in an alginate model and the length measurements were carried out at "0.5" and "Apex" mark using four EALs. The file was cemented at the location of the manufacturers' instruction (Root ZX, EDU, EMF: 0.5 mark, SmarPex: Apex mark). The apical 4mm of the apex was exposed and the distance from the file tip to the major foramen was measured by Image ProPlus (× 100). The distance from the file tip to the major foramen was calculated at 0.5 and Apex mark and the consistency of 0.5 and Apex mark was compared by SD and Quartile of Box plots. In this study, Root ZX and EMF located the apical constriction accurately within ± 0.5 mm in 100%, whereas SmarPex and EDU located in 90% and in 70% respectively. For Root ZX and EMF, there was no significant difference between the consistency of 0.5 and Apex mark. However, for the EDU and SmarPex, Apex mark was more consistent than 0.5 mark. From the evaluation of the consistency in this study, for Root ZX and EMF, both 0.5 and Apex mark can be used as a standard mark. And for EDU and SmarPex, the Apex mark can be recommended to be used as a standard mark.