• 한국체육학회지인문사회과학편
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• v.57 no.1
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• pp.59-70
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• 2018

This study is aimed to examine what school sports club activities mean to middle school students. To attain this objective, this study first investigated what kinds of peer culture school sports club activities form, and second, what kind of time school sports club is for the students. For the research method, a qualitative research method was employed combining in-depth interview and participatory observation. The results showed that first, the students were creating the peer culture of games, communication, and relaxation through school sports club activities. Though fighting sometimes, the boy students were really enjoying sports games with their friends according to their own rules. On the other hand, girls were enjoying the relationship with friends, more focusing on communication and relaxation than on playing sports game itself. Second, the students thought of school sports club activities as an exit. Those students who lacked leisure time regarded school sports club activity as a time to play with friends, to escape from the pressure of good grades, and different from physical education.

• The korean journal of orthodontics
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• v.25 no.4
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• pp.433-445
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• 1995

Tooth movement, the phenomena and mechanisms of which are still controversial, can be considered as part of the result of the inflammatory processes. The purpose of this study was to examine the activity of macrophage and T-cell, playing important roles in the immune reaction, in the periodontal ligament of dog, in which experimental tooth movement was performed. Six one and half year-old dogs, a control and 5 experimentals, were studied. Light force (50-75g) was applied by placing open-coil spring between left mandibular premolars ; heavy force (250-300g), between right mandibular premolars. Experimental dogs were sacrificed at 12 hours, 1, 3, 7 and 14 days since force application, respectively. And the histologic and the immunohistochemical evaluation on the obtained tissue were performed, using $\alpha$-1-antichymotrypsin and CD3 antibodies. The results were as follows : 1. There were more inflammatory cell infiltrations in heavy force group than in light force group until 3 days. But from 7 dsays on, no difference was not observed between groups ; Such an infiltration was more evident at pressure side than at tension side. 2. Osteoclastic activity at pressure side began to be seen in 12 hours, increasing until 7 days. After then it decreased ; Such an activity was more evident in heavy force group than in light force group. 3. Tearing of periodontal ligament and vascular dilatation at tension side began to be seen in 12 hours, increasing until 3 days. After then it decreased ; Such an observation was more evident in heavy force group than in light force group, but there was no difference between groups in 14 days. 4. $\alpha$-1-antichymotrypsin expression in control group was positive, mainly in sulcular epithelium, but negative in periodontal membrane, pulp, bone cells. 5. $\alpha$-1-antichymotrypsin expression in experimental group was more positive in pressure side than in tension side ; The expression was a little more positive in cervical area of tooth until 3 days, but after 7days, it was more positive in apical area. 6. $\alpha$-1-antichymotrypsin expression in light force group began to be observed in 12 hours and reached to the greatest level in 7 days, after which it decreased ; In heavy force group, it was the greatest in 3 days, after which it decreased. 3 Expression in the periodontium was almost negative.

• Journal of the Korea Society of Computer and Information
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• v.27 no.8
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• pp.195-202
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• 2022

In this study, when cardiopulmonary resuscitation continued for a long time, the rescuer's blood lactic acid concentration, heart rate, and rating of perceived exertion were measured to identify the change in the rescuer's fatigue. Data collection was conducted from July 5 to July 9, 2021, with a total of 24 students, 12 students department of special warfare medical non-commissioned officer, and 12 students department of emergency medical technology at D University, undergoing a two-person alternative chest compression resuscitation for 60 minutes. As a result of the study, the rescuer's blood lactic acid concentration, heart rate, rating of perceived exertion, and chest compression speed were significantly changed according to the duration of CPR (p<.001, p<.001, p<.001, p<.001). blood lactic acid concentrations at every measurement cycle (30 minutes, 40 minutes, 50 minutes, 60 minutes) showed a significant positive correlation with heart rate (r=.696, p<.001, r=.672, p<.001, r=.709, p<.001, r=.782, p<.001), there was also a significant positive correlation with the rating of perceived exertion (r=.476, p<).05, r=.426, p<.05, r=.470, p<.05, r=.470, p<.05). Therefore, monitoring the fatigue of rescuers using heart rate and rating of perceived exertion will be useful for maintaining high-quality chest compression in situations where cardiopulmonary resuscitation is required for a long time.

• Journal of the Korea Society of Computer and Information
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• v.27 no.8
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• pp.161-168
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• 2022

In this study, a survey on the wearing satisfaction of commercial men's upper body correction underwear was conducted targeting mildly obese men in their twenties, and it was intended to suggest improvement points for the correction underwear. The product used for the study was Adapt's 95 PROBLEM, and 15 subjects were selected as males in their 20s with a BMI of 25-30 (mild obesity). As a result, men's awareness and interest in corrective underwear were low. In the wearing satisfaction survey, 74% of those who answered negatively that it was uncomfortable to wear and take off. In terms of pressure relief, 60% of those who felt the pressure was strong at the beginning, but as time passed, they got used to it and answered that there was no major inconvenience. However, with regard to digestion after a meal, 40% of the subjects felt that the pressure interfered with digestion. There were many deficiencies in terms of functionality, with more than half of those who responded negatively with regard to stuffiness and heat, and many negative opinions regarding sweat absorption and discharge. In the visual section, positive reaction was shown in chest, side waist and front waist correction, and among them, the front waist had the highest score. In conclusion, it seems that functional parts related to heat and sweat must be improved in consideration of the stuffiness and indigestion brought about by excessive pressure for men's upper body correction underwear.

• The korean journal of orthodontics
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• v.31 no.1 s.84
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• pp.107-120
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• 2001

Nitric oxide(NO) has been reported to be one of the mediators relating to bone remodelling. Nitric oxide is synthesized from L-arguinine by nitric oxide synthetase(NOS), which is largely divided Into two groups. One group which is composed of $NOS_1\;and\;NOS_3$, is dependent of calcium or calmodulin. The other consisted of $NOS_2$, which is independent of calcium or calmodulin. NOS is thought to be a possible intermediate affecting in the course of tooth movement. This study was designed to evaluate the expression of nitrous oxide synthetase(NOS) in periodontal tissue during the experimental movement of rat incisors, by LSAB(labelled streptavidine biotin) immunohistochemical staining for $NOS_2\;and\;NOS_3$. Twenty seven Sprague-Dawley rats were divided into a control group(3 rats), and 6 experimental groups(24 rats), to which 75g of force was applied, with helical springs across the maxillary incisors. Rats of experimental groups were sacrificed at 12 hours, 1, 4, 7, 14 and 28 days after force application, respectively. After that, the tissues of the control group and experimental groups were studied immunohistochemically. The results were as follows: 1. In control group, the expression of $NOS_3$ was rare in gingiva, dentin, periodontal ligament and alveolar bone, and was mild in the capillaries of pulp and intermaxillary suture. And the expression of $NOS_2$ showed similar pattern to that of $NOS_3$. 2. There were no differences in the expression of $NOS_2\;or\;NOS_3$ in dentin, gingiva, cementum, cementoblast and odontoblast, between control and experimental groups, regardless of the duration of the force application. 3. The expression of $NOS_3$ began to increase at 4 days and showed to the highest degree at 7 days after force application, in the apical region of pressure side of periodontal ligament in experimental groups. 4. The expression of $NOS_3$ in alveolar bone was rare until 7 days, after which it increased to mild degree at 14 days through 28 days in experimental group. But there was no difference between pressure and tension side of periodontal ligament. 5. The expression of $NOS_2$ in periodontal ligament was mild from 7 days after force application, regardless of the side of periodontium, which was generally more evident than that of $NOS_3$. 6. The expression of $NOS_2$ in alveolar bone increased to mild degree at 14 days after force application, and it was evident in osteoblasts, osteoclasts and osteocytes. And the expression of $NOS_2$ was little more stronger in the tension side than that of pressure side of alveolar bone.

• Journal of the Korean Society for information Management
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• v.2 no.2
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• pp.71-114
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• 1985

Medical libraries in Korea consume most of their budget and efforts of staffs for acquisition and administration of foreign medical journals. Annualy the rise in prices of the journals oppress the library budget. Because of these reasons, this paper studied and analyzed the possibility of cooperative acquisition of foreign medical journals between the medical libraries in Korea and several basic informations for cooperative acquisition by citation analysis method. The 5 source medical school journals were selected from our country's medical school journals: Seoul, Yonsei, Catholic, Chonnam, Kyungbook.

• The Korean Journal of Financial Management
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• v.10 no.2
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• pp.213-237
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• 1993

본 연구는 시간에 따라 정보비대칭의 정도가 변동할 때의 역선택모형을 이용하여 우리나라 주식시장에서 기업의 유상증자의 시기가 주가에 어떠한 영향을 미치는가를 분석하였다. 먼저 재무제표 등의 내부정보가 일반투자자에게 공시된 직후에는 다른 시점에서 보다 많은 유상증자공시를 확인할 수 있었으며, 유상증자공시 직전에는 다른 기간에서 보다 좋은 내부정보가 공시된다는 사실을 확인하였다. 그리고 유상증자공시에 따른 주가반응에 영향을 미치는 요인을 분석하기 위하여 가격압박가설, 레버리지가설, 정보가설 둥에서 제시한 변수를 이용하여 분석한 결과 유상증자공시일에서는 시장상황과 유상증자공시시기 등이 유의적인 영향을 미친다는 점을 확인하였고, 배정기준일에서는 시장상황, 레버리지변동, 기업자산의 가치에 대한 불확실성 등이 유의적인 영향을 미친다는 점을 확인하였다.

• Journal of Global Scholars of Marketing Science
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• v.2
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• pp.235-260
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• 1998

최근 우리의 경제는 최대의 변혁과 전환점에 서 있다. 이러한 위기를 극복하기 위해서는 개인과 조직을 새롭게 하려는 창의적인 대안과 경제에 다시 활력을 불어넣는 기업가정신이 필요하다. 본 연구의 목적은 금융기관을 대상으로 조직에 활력을 주는 마케터의 마케팅창조성과 그에 대한 영향 요인간의 관계를 규명함으로써 국내 금융영업점의 마케팅창조성의 수준을 향상시킬 수 있는 마케팅관리 전략을 도출하는데 있다. 본 연구의 발견들과 결론을 이용하여 다음과 같은 금융점포의 창조성을 높일 수 있는 마케팅전략적 시사점을 제안한다. 첫째, 금융점포 관리자의 상품에 관한 지식수준, 특히 상품자체의 지식과 운영환경에 관한 지식의 수준을 향상시키기 위한 관리적 방안을 구체화하여야 한다. 둘째, 금융점포의 마케팅창조성을 높이기 위하여 계획의 정형성을 높일 필요가 있다. 셋째, 금융영업점의 마케팅창조성을 높이기 위해서는 적정한 시간압박수준을 유지해야 한다. 넷째, 금융기관은 금융영업점이 마케팅계획수립시에 본사의 관련 부서들과 활발한 상호작용을 하도록 유도해야 한다. 다섯째, 금융기관은 영업점이 성과를 높이는데 지원을 아끼지 않아야 한다. 여섯째, 금융영업점의 마케팅창조성을 높이기 위해서 금융기관은 영업점 관리자의 상황적인 요인에 대한 관리에 주력해야 한다.

• Journal of the Korean Society of Clothing and Textiles
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• v.18 no.2
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• pp.234-243
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• 1994

This research has studied situational effects on the perceived risk and store choice behavior. Data were obtained from 388 females with full-time jobs living in Pusan. The results analyzed by Spearman's rank correlation analysis, analysis of variance(ANOVA), 1-test and discriminant analysis. The results of this study were as follows; 1. There were significant differences in percieved risk according to the clothing purchasing situations. Performance risk was perceived high in gift-shopping situation and time-pressured situation, and financial risk was perceived high in self-shoving situation. 2. There were particularly significant differences in store attributes evaluation according to the clothing purchasing situations. In self-shopping situation, price, quality and reliability, store loyalty were evaluated as important store attributes. In gift-shopping situation, quality and reliability, product iuomation and in time-pressured situation, store loyalty and product information were evaluated as important store attributes. 3. Consumers preferred national brand franchise stores in self-shopping situation. They preferred department stores in gift-shopping situation and time-pressured situation. The types of selected store were mainly affetted by shopping convenience and location convenience.

• Journal of Veterinary Clinics
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• v.17 no.2
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• pp.450-453
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• 2000

식후 만성적인 구토 증상을 보이는 3개월령 암컷 Schunauzer가 본 (주)해마루 소동물 임상 의학 연구소에 내원하였다. 신체 검사시 비정상직인 소견은 보이지 않았으나, 유동식을 공급하는 중에도 식 후 1시간 이내에 포말성 역류 증상을 보였고, 기립 자세에서 식이를 공급 해도 증상은 호전되지 않았다 일반 방사선 검사에서 전반적인 식도 확장이 관찰되었고. 식도 조영술을 실시하여 심기저부 앞부분의 협착과 협착부 전후의 식도 확장을 확인하고 우대동백궁 잔존증으로 진단하였다. 수술을 통해 식도를 압박하고 있는 인대를 제기하고 유동식을 공급하였다. 술 후 임상 증상은 다소 호전이 되었으나 여전히 고형식은 섭취하지 못하고 방사선 검사상 소견도 술전과 큰 차이를 보이지 않았다