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This paper looked at the virtual museum as a digital content utilization medium for online education in college. Virtual museums can provide learners witha digital archive richin information and expertise. For this study, two online classes were developed to utilize the virtual museum as digital content. For 15 weeks in the first semester of 2020, 115 students participated, and the results were analyzed using surveys, class results (video reports, final reports), and reflection journals. Through this process, the possibility of the educational use of virtual museums as digital archives in online education were examined, along with some changes that learners themselves underwent as a result of this approach to learning. 본 연구는 대학 온라인 교육을 위한 디지털콘텐츠 활용 수업으로서 가상박물관을 활용하였다. 가상박물관은 전문성을 지닌 다채롭고 풍부한 디지털아카이브로써 디지털 환경 내에서 여러 학습자의 요구를수용하여, 보다 다양하고 발전된 디지털콘텐츠를 제공할 수 있는 장점을 지닌다. 또한 디지털 매체와접목되어 효율적인 전시 정보 제공은 물론 학습자에게 보다 몰입할 수 있는 학습 환경을 제공하여자기주도적 참여를 촉진하게 되는데, 결과적으로 학습자 중심의 교육 환경을 조성하여 학습자의 흥미와동기를 강화하고 학습 효과 향상에 긍정적인 영향을 미칠 것으로 기대할 수 있다. 이에 디지털콘텐츠로써 가상박물관 활용을 위해 ‘르네상스'와 ‘포스트모던 아트 읽기' 두 교양강좌의온라인 수업을 개발하고, 2020년 1학기 총 15주 동안 수강생 115명을 대상으로 수업을 실시하였으며두 강좌에서 나온 설문조사, 수업결과물(영상보고서, 기말보고서), 성찰일지를 활용하여 결과를 분석하였다. 이를 통해 대학 온라인 교육에서 디지털아카이브로써의 가상박물관의 교육적 활용 가능성과학습자의 변화에 대해 확인해 보았다.
'스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.
2012년 UN이 강조한 ‘세계시민의식(Global citizenship)'은 ‘세계시민교육'이라는 새로운 개념을 제시하였다. 세계시민교육은 비형식(non-formal), 무형식(informal) 교육 형식과 아동으로부터 성인에 이르는 폭넓은 대상을 포함(정우탁, 2015| UNESCO, 2014| 2015)하는 평생교육으로써, 기존의 교육 에서는 제한적으로 다뤘던 ‘주체적인 시민성 함양'을 전면에 내세우고 있다. 이에 대한 세부 교육 목표 안에는 비판적 사고를 중심으로 하는 인지적 역량, 공감과 배려, 소통을 중심으로 하는 사회/ 감성적 역량과 그것을 기반으로 하는 실천적 역량이 포함되어 있다.
This study describes how successfully a conventional flame aerosol synthesis was used to continuously synthesize Pt-Ru catalysts supported by carbon agglomerates. Nearly spherical catalysts produced in the flame were mainly composed of metallic Pt and Ru with the molar ratio of 1:1 and those sizes were controllable from ~1.5 ㎚ to ~2.0㎚. Nevertheless, only Pt peaks were found from X-ray diffraction experiments, suggesting that amorphous-like Ru was well mixed in the crystalline Pt lattices. It was found from Cyclo-voltamograms and CO stripping experiments that the electrochemical properties of the catalysts are at least comparable to that of a conventional commercial sample.
Background and Objectives:Idiopathic sudden sensorineural hearing loss (ISSHL) on the only hearing ear makes bilateral hearing disturbance which decreases the quality of life and increases anxiety about total deafness. The authors analyzed characteristics and otological hearing outcomes of the patients with ISSHL on their only hearing ears. Subjects and Methods:Clinical and otological data of 824 ISSHL patients from 1998 to 2008 were retrospectively reviewed. Forty-three patients had ISSHL on their only hearing ears (male 15, female 28, mean age, 50 years). The control group matching age and sex was selected (n=40) to compare the recovery rate. Results:After treatment of ISSHL, 16 cases among 43 patients (37.2%) experienced improvement of hearing (complete recovery 4 (9.3%), partial recovery 6 (14.0%) and slight improvement 6 (14.0%)). Hearing outcomes were better when the patients were treated within 2 weeks after the attack of this disease (43.2% vs. 0%, p=0.049). Recovery rate of worse opposite hearing level was better than the other (47.1% vs. 0%, p=0.009). Age, sex, related otological symptoms (tinnitus or dizziness), systemic disease (diabetes or hypertension), severity of hearing loss, etiology of contralateral hearing loss, additional treatment method and type of audiogram had no relationship with recovery rate. ISSHL on the only hearing ear group showed a lower recovery rate than the control group, but the results were not statistically significant (p=0.064). Conclusions:Hearing recovery rate was different according to the opposite hearing level and the timing of initial treatment in patients with ISSHL on the only hearing ear. Early diagnosis and proper treatment for ISSHL on the only hearing ear are important to improve hearing recovery.
Silicon nitride (Si3N4) is regarded as one of the most promising materials for high temperature structural applications due to itsexcellent mechanical properties at both room and elevated temperatures. However, one high-temperature Si3N4 material intended foruse in radomes has a relatively high dielectric constant of 7.9 - 8.2 at 8 - 10 GHz. In order to reduce the dielectric constant of the Si3N4,an in-situ reaction process was used to fabricate Si3N4-SiO2-BN composites. In the present study, an in-situ reaction between B2O3and Si3N4, with or without addition of BN in the starting powder mixture, was used to form the composite. The in-situ reaction processresulted in the uniform distribution of the constituents making up the composite ceramic, and resulted in good flexural strength anddielectric constant. The composite was produced by pressure-less sintering and hot-pressing at 1650oC in a nitrogen atmosphere. Microstructure, flexural strength, and dielectric properties of the composites were evaluated with respect to their compositions andsintering processes. The highest flexural strength (193 MPa) and lowest dielectric constant (5.4) was obtained for the hot-pressedcomposites. The strength of these Si3N4-SiO2-BN composites decreased with increasing BN content.
Granular cell tumor (GCT) is a relatively rare tumor. GCT can originate from any site of human body, including subcutaneous tissue, skin, breast, digestive system and respiratory system. It occurs mostly in the head and neck region, especially in the oral cavity and tongue. Histopathologically, GCT consists of polymorphic and polygonal cells. The cytoplasm of cells has abundant eosinophilic granules. In immunohistochemical studies, these eosinophilic granules appear positive for S-100 protein. Surgical excision is the first choice of treatment of GCT; recurrence is rare when proper excision is done with a sufficient margin. We have experienced a case of GCT that originated from the postauricular area, and report this case with a review of literatures.
Purpose: Electrical stimulation is one of several treatments recommended for RA patients. Electrical stimulation of RA patients, reduces pain, or facilitates joint motion prior to exercises. However, there is still limited evidence on the efficacy of electrical stimulation and thus any conclusions drawn about this method remain controversial. Recently, Microcurrent Electrical Neuromuscular Stimulation (MENS) has received significant attention as a potential method of electrical stimulation. In this study, we investigated the effect of microcurrent treatment in rheumatoid arthritis rat. Methods: Subjects were allocated either to the control group or experimental group, which was subject to microcurrent stimulation. Interleukin-1 expression in the metatarsophlangeal joint and the oedema index in the ankle were used for classification and subsequent evaluation of pathology. Subjects were assessed at 1, 7 and 14 days after inducing rheumatoid arthritis through adjuvant injection. Thirty-six subjects, 18 in each group, were used in this study. Statistical analysis was performed by calculating the differences between the two groups and between each interval assessment. Categorical variables were compared between the two groups with the paired-T test. The one-way ANOVA test was performed to assess changes in ordinal variables. Results: Baseline characteristics were similar in both groups. Statistically significant differences were found between the two groups. The biological marker of pro-inflammatory cytokine and oedema index were decreased in response to this treatment. Conclusion: These data show that treatment of rheumatoid arthritis with a microcurrent stimulation device reduced the oedema index and pro-inflammatory cytokine IL-1.
'스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.
In the era of the 4th Industrial Revolution, expect the positive development of the future society by the 3D printer and artificial intelligence that emerged with the rapid development of digital technology. In addition, it predicts various career changes and cultivate talented people with creative problem solving ability based on the utilization of digital tools. In this contexts, this study focuses on the museum which is a typical non - formal education institution and aims to explore museum education for the training of the talents in the fourth industrial revolution era. Therefore, it is suggested that 'Fourth industrial revolution and maker pedagogy', 'Characteristics and case analysis of museum and maker pedagogy'. Through this, the maker education in the museum is not just an education to learn how to use digital machinery, but it is a fun experience to create a learning experience for students by utilizing physical, intellectual and human resources related to various life as well as exhibits and digital tools. And that the process and results of education provide opportunities for communication and sharing. 4차 산업혁명 시대는 빠른 디지털 기술의 발달로 등장한 3D 프린터, 인공지능 등으로 미래사회에 대한 긍정적 발전을 기대하는 한편 다양한 직업변화를 예측하고 디지털 도구의 활용을 기반으로 창의적 문제해결력을 갖춘 인재양성의 중요성을 더욱 강조하고 있다. 따라서 본 연구는 4차 산업혁명 시대의 인재양성을 위한 방안으로서 대표적 비형식교육기관인 박물관에 주목하고 이를 위한 교육방안 탐색을 연구의 목적으로 한다. 이에 전 세계적으로 주목받고 있는 메이커 교육을 하나의 방안으로 제시하고 문헌연구를 통해서 ‘4차 산업혁명과 메이커 교육', ‘박물관과 메이커 교육의 특징과 사례 분석' 및 ‘박물관에서의 메이커 교육의 의미'를 탐색하였다. 이를 통해 박물관에서의 메이커 교육은 단지 디지털 기계의 활용법을 익히는 교육이 아니라, 전시물, 디지털 도구뿐만 아니라 다양한 삶과 연관된 물리적, 지적, 인적 자원을 활용하여 학습자의 주도로 재미있는 만들기를 체험하는 교육이자, 창의적 문제해결력을 학습하고 교육의 과정과 결과는 소통과 공유될 수 있는 기회를 제공하는 교육임을 강조하였다. 본 연구는 4차 산업 혁명 시대의 창의적 인재양성을 위한 하나의 방안으로서 박물관에서의 메이커 교육을 연구하고 박물관 교육에 대한 새로운 방향을 제시함에 연구의 의의가 있다.
1. Objectives This study evaluates the effect of oriental medical treatment on a chronic sinusitis patient. 2. Methods The patient was teated with acupuncture, nasal cavity irrigation, and Yangdokbackho-tang(陽毒白虎湯). Previous western medical methods were excluded in order to provide therapeutic methods different from pre-existing ones because we needed different, long-term treatment plan from previous treatment. We applied acupuncture 15 times during treatment period and instructed the patient to carry out nasal cavity irrigation at home. 3. Results & Conclusions Combined application of oriental treatment including administration of Yangdokbackho-tang and nasal irrigation showed remarkable clinical effects on symptom, physical examination and radiological finding.