• 복식
• /
• 제62권7호
• /
• pp.29-40
• /
• 2012

Using the official marker of the Korea's national symbol to inform the world of the country's existence to the global community in the $21^{st}$century enhances the autonomy and the competitiveness of Korea. It is thought that selecting a motif for promoting the national identity through cultural products or costumes can prepare an opportunity for gaining competitiveness internationally. The purpose of this study is to enhance understanding on the use of a traditional Korean symbol, Mugunghwa, and how it increases the cultural value of Korea, and develops the modern Korean image. The specific contents of this study are as follow. First, searching for the scope of usage of the national flower Mugunghwa from various angles for enhancing the Korean image. Second, developing a national symbol image of modern sense that reflects trend by using Mugunghwa. Third, clarifying the application scope and role of the national symbol image using Mugunghwa, and present a specific usage plan for creating more value. As for the study method, the study is conducted through theoretical and empirical research and six pieces of work of modern Mugunghwa image are presented as the result. Based on the development of the image of Mugunghwa as a national symbol, this study proposed a role of a cultural ambassador by applying Mugunghwa to fashion products or costumes. As for the expected effect, it can provide an opportunity for developing another national symbol and a new perspective on national symbol will appear. It is thought that the cultural value of a national symbol can be understood through this study and it can provide an opportunity for developing various national symbols for enhancing the national image.

• Reproductive and Developmental Biology
• /
• 제32권3호
• /
• pp.147-152
• /
• 2008

The aim of this study was to investigate what components of porcine epididymal fluid (pEF) influences the nuclear maturation of porcine germinal vesicle oocytes. Porcine cumulus-oocytes complexes from follicles were cultured in TCM 199 containing pEF. After 48 h cultures, oocytes were examined for evidence of GV breakdown, metaphase I, anaphase-telophase I, and metaphase II. Maturation rate of oocytes was significantly increased in media supplemented with 10% pEF during in vitro maturation (IVM) than in those without pEF. When lipid component of pEF was removed by treating n-heptane, no significant difference was observed in maturation of oocytes between n-heptane treatrment and intact pEF group. However, the proportion of oocytes reaching at metaphase II (M II) was significantly (p<0.05) decreased in the oocytes cultured in media containing trypsin-treated pEF compared to those in media with intact pEF. When porcine GV oocytes were matured in the medium supplemented with intact pEF or pEF heated at $56^{\circ}C$ and $97^{\circ}C$, rates of oocytes remained at GV stage were 11.7%, 29.4% and 42.0%, respectively. However, there were no difference in proportion of oocytes reaching at MII stage among intact pEF group and $56^{\circ}C$ group. Present study suggests that 1) pEF contains an enhancing component(s) for nuclear maturation in vitro of oocytes, 2) protein(s) of pEF may be capable to promote nuclear maturation in vitro, and 3) enhancing component for nuclear maturation may consist of two factors, which are responsible for germinal vesicle breakdown (GVBD) and promotion of MII stage.

• 대한수학교육학회지:학교수학
• /
• 제1권2호
• /
• pp.637-660
• /
• 1999

Although ‘to understand mathematics’ is an important educational purpose, most student do not have a relational understanding of the basic concept of mathematics but have a instrumental understanding. This paper will investigate the possibility of using computers for enhancing relational understanding. In the ‘Qualitative case study’, three students who are in the first grade at E-High school took part in 7 activities during four weeks, and were later interviewed and engaged in informal discussion and were observed. This is the result of this study. 1. The three students were passive participants in mathematics problem solving situation at school. Therefore, student B just applied formulas which she had memorized, and student C would forgot the formulas occasionally. These common students needed to participate actively in doing mathematics. 2. The activities utilized two software healing with connection between graphs and function, giving the students the opportunity to plan, practice, and test by themselves. As a result, they understood the mathematical formulas and rules more deeply through their own trial and error, and then they gained thinking abilities necessary for doing mathematics. In addition, the activities boosted their confidence. 3. The understanding type of students was slightly different. Student A who received a high score, understood the most relationally, but student B who received a very high score, understood instrumentally and so couldn't app1y her knowledge to solving problems related to function concept. Student C who received a middle score lacked knowledge of mathematics but thought more creatively. The result is that students need an opportunity to think rotationally regardless of score. Therefore, this study concludes that using computer software will provide a positive effect for relational understanding in loaming function concept.

• Journal of Ginseng Research
• /
• 제44권4호
• /
• pp.655-663
• /
• 2020

Background: Korean Red Ginseng is known to exhibit immune-enhancing and anti-inflammatory properties. The immune-enhancing effects of the nonsaponin fraction (NSF) of Korean Red Ginseng have been studied in many reports. However, the gastroprotective effect of this fraction is not fully understood. In this study, we demonstrate the activities of NSF for gastrointestinal protection and its related critical factor. Methods: The in vitro and in vivo regulatory functions of NSF on cyclooxygenase-1 (COX-1) messenger RNA and protein levels were examined by reverse transcription polymerase chain reaction and immunoblotting analyses. Gastroprotective effects of NSF were investigated by histological score, gastric juice pH, and myeloperoxidase activity on indomethacin-induced, cold stress-induced, and acetylsalicylic acid-induced gastritis and dextran sulfate sodium-induced colitis in in vivo mouse models. Results: NSF did not show cytotoxicity, and it increased COX-1 messenger RNA expression and protein levels in RAW264.7 cells. This upregulation was also observed in colitis and gastritis in vivo models. In addition, NSF treatment in mice ameliorated the symptoms of gastrointestinal inflammation, including histological score, colon length, gastric juice pH, gastric wall thickness, and myeloperoxidase activity. Conclusion: These results suggest that NSF has gastroprotective effects on gastritis and colitis in in vivo mouse models through COX-1 upregulation.

• 약학회지
• /
• 제49권6호
• /
• pp.471-476
• /
• 2005

Rhus verniciflua Stokes (RVS) has been used as a food supplement and a traditional herbal medicine for a men's sexual enhancement. In this study, we prepared a flavonoid fraction (RWE) from a hot water extract of RVS and its influence on sexual behavior was studied in male rats which were orally administered varying doses of RWE for 2 weeks. All doses of RWE stimulated sexual behavior in male rats such as reducing mounting latency and enhancing mount frequencies. However, intermission numbers were not changed and none of group can observe the ejaculation during behavioral testing time 5 min. Testosterone levels were Increased about 0$\∼$53$\%$ and 92$\∼$164$\%$ by the treatment of RWE for 1 and 2 weeks, respectively. However, estrogen levels in male rats tended to decrease in a dose dependent manner of RWE. At the dose of RWE 200 mg/kg, estrogen level was reduced to 77.5$\%$ and 70.3$\%$ of control after 1 and 2 weeks treatment. These findings suggest that the Rhus flavonoid fraction can stimulate the androgen-dependent male sexual behavior and it can be applied to the material of functional food for enhancing the sexual function.

• 대한간호학회지
• /
• 제26권3호
• /
• pp.697-708
• /
• 1996

Most efforts to improve tuberculosis treatment adherence target the patient and his or her behavior. This study examined the effects of behavioral modification training for these patients. Based on Bandura's behavioral principles of modeling, intervention strategies using a video program were devised to elicit specific patient target behaviors considered to improve patients' adherence to tuberculosis treatment regimens. A random assignment, two-group(experimental group and control group) research design including 81 subjects was used. The main outcomes measured were pill taking measured with the Medication Event Monitoring System(MEMS) Medication Cap, patients' self-efficacy, and their knowledge of tuberculosis. The findings are as follows : 1) There was a significant difference between the experimental group and the control group in patients' feelings of self-efficacy. That is, the patients who received the behavior modification program showed greater feeling of self-efficacy to initiate and change their behavior for the tuberculosis treatment regimen than the patients who did not receive the program(t=3.51, p=0.01). 2) There was a significant difference between the experimental group and the control group in patients' knowledge of tuberculosis. That is, the patients who received the behavior modification program showed higher level of knowledge of tuberculosis than the patients who did not receive the program(t=2.15, p=0.03) 3) There was a significant difference between the experimental group and the control group in patients' adherence to tuberculosis treatment regimens. That is, the patients who received the behavior modification program showed greater adherence to the treatment regimens than the patients who did not receive the program(t=5.11, p=0.00). The study findings provided useful insights into nursing practice, particularly in planning intervention strategies aimed at enhancing patients' adherence in tuberculosis that may also be relevant to other chronic diseases with patient adherence problems.

• 한국환경보건학회지
• /
• 제34권3호
• /
• pp.233-239
• /
• 2008

In order to improve reactor performance of existing sewage treatment plants, the feasibility of enhancing reactor performance by bioaugmentation using EM as bioaugmentation agent and the effects of anoxic: oxic time ratio on reactor performance were investigated. Continuous and intermittent aeration modes were compared under the 6 hr of HRT. Three different types of intermittent aeration modes, that is, 15 min, of anoxic:45 min of oxic, 30 min of anoxic: 30 min of oxic, and 45 min of anoxic: 15 min oxic respectively were chosen as test modes to study the effects of anoxic : oxic time ratios on reactor performance. The optimum anoxic: oxic time ratio was 30 min:30 min when considering simultaneous removal of organic, nitrogen and phosphorus. When applying EM into a continuously aerated reactor under the varying dosing rates of 50-200 ppm, reactor performance in terms of organic and nitrogen removal efficiencies was not improved at all. Nitrogen removal efficiency was increase when the EM dosing rate was increased. However the degree of improvement was slight when the EM was injected above 100 ppm. However optimum phosphorus removal was found at the EM dosing of 200 ppm. Thus it was found that optimum injection concentration of EM is 200 ppm. It is apparent that putting EM into a sewage treatment plant significantly affects the T-N removal efficiency of the reactor by enhancing denitrification efficiency especially in operational conditions of relatively long anoxic periods. To achieve reciprocal condition in a reactor with intermittent aeration it is necessary to enhance the reactor performance by EM injection. In the case of modifying existing continuously aerated reactors into intermittent aerated reactors, it is obvious that operating costs of aeration would be reduced by reducing aeration time when compared with existing conventional sewage treatment plants.

• 디지털융복합연구
• /
• 제18권7호
• /
• pp.149-156
• /
• 2020

본 연구에서는 SNS 사용자들의 온라인 관계 친밀도에 영향을 미치는 선행 요인들을 살펴보았다. 사용자들의 이용과 욕구 이론을 바탕으로 자기 표현, 관계 형성, 정보 검색을 SNS의 주요 사용 욕구로 정의하였다. 이 사용 욕구들은 사용자 만족, 주관적 행복, 정보 게시 행동을 통해 온라인 관계 친밀도에 영향을 미칠 것으로 예상하였다. 본 연구는 종단적 연구 방법을 활용하였으며, 페이스북 사용자 199명을 대상으로 연구 모형을 검증하였다. 자기 표현과 정보 검색은 사용자 만족과 주관적 행복에 유의한 영향을 미쳤다. 하지만, 관계 형성은 사용자 만족과 주관적 행복 모두 유의한 영향을 미치지 않았다. 사용자 만족은 온라인 관계 친밀도에 직접적으로만 유의한 영향을 미쳤다. 주관적 행복은 정보게시 행동과 온라인 관계 친밀도 모두 유의한 영향을 미쳤다. 마지막으로 정보 게시 행동은 온라인 관계 친밀도 증진의 핵심 요인임을 밝혀내었다. 본 연구 결과는 온라인 관계 친밀도에 대한 학문 및 실무적 시사점을 제공해 줄 수 있을 것으로 기대된다.

• KDI Journal of Economic Policy
• /
• 제35권1호
• /
• pp.103-135
• /
• 2013

본 논문은 '경쟁제고'와 '반사실'의 두 가지 핵심 개념을 중심으로 경쟁제한적 기업결합 심사에서 항변으로 고려되는 효율성 및 파산기업 문제의 경제적 근거와 인정 요건들을 정합적으로 설명한다. 효율성 항변에 대해서는 그 경제적 근거가 효율성 증대 자체보다 효율성 증대가 초래하는 경쟁제고 효과에 있음을 강조한다. 파산기업 항변에 대해서는 당해 기업결합이 진행된 후의 경쟁 상황이 그렇지 않은 반사실 경우의 그것과 크게 다르지 않다는 점이 주요 경제적 근거라고 설명한다. 이러한 이해 방식은 최근의 관련 국제 논의 및 경쟁법 선진국들이 운용하고 있는 기업결합 가이드라인에 공통으로 나타나고 있는 것이다. 이러한 이해를 바탕으로 할 경우 항변의 인정 요건들도 정합적으로 설명된다. 또한, 본 논문에서는 이러한 이해를 바탕으로 그 간의 국내 기업결합 심사 사례들에 대한 분석을 통해 우리나라 "기업결합심사기준"에 대한 개선 방향을 제시한다. 효율성과 관련해서는 소비자 이전 가능성 요건 합병 특유성 인정 요건으로서의 제3자와의 기업결합 문제 등을 논의하며, 파산기업과 관련해서 경제적 근거 포함 문제 등을 논의한다.

• 대한수학교육학회지:학교수학
• /
• 제18권2호
• /
• pp.397-423
• /
• 2016

본 연구에서는 우리나라 중 고등학생의 수학 학습 동기 증진 프로그램을 학습자 특성, 수학 과제 특성, 자기조절학습이론을 고려하여 정의적 측면과 인지적 측면으로 개발하였다. 정의적 프로그램은 수학 학습에서 학생의 조절초점 확인, 수학적 자기조절효능감 향상, 학업스트레스 대처, 수학 불안 감소를 목적으로 개발되었고, 인지적 프로그램은 중 고등학교의 수학 과제난이도에 대한 선호 정도를 증진시킬 수 있도록 개발되었다. 개발한 프로그램은 수학 성취수준과 학업동기유형을 고려하여 프로그램 참가를 희망한 남녀 중 고등학생들 12명에게 10주 동안 적용하였다. 수학 교사의 관찰일지와 4차에 걸친 심층면담을 분석한 결과, 조절초점 확인 프로그램에서 학생의 향상초점과 예방초점이 변화하지는 않았으나, 수학적 자기조절효능감 향상 프로그램은 성취수준이나 성차와 관계없이 자율동기, 통제동기가 높았던 학생들에게서 긍정적인 효과가 나타났다. 학업스트레스 대처와 수학 불안 감소 프로그램에서는 신체적 대처 활동이 학교급, 성차, 성취수준에 관계없이 수학 학습 동기 증진에 효과적이었고, 수학 시험 불안 해소 활동이 학업동기유형과 관계없이 효과적이었다. 인지적 프로그램에서는 오답노트와 문제만들기 활동이 결합된 '수학의 달인' 노트가 수학 학업 성취수준이 중 또는 하인 학생들에게서 수학 학습 동기 증진에 효과적이었다.