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      • 공공도서관 유아열람실의 실내공간특성에 관한 연구

        전세란;심재희;황연숙 한양대학교 2008 韓國 生活 科學 硏究 Vol.28 No.1

        Reading plays a large part in emotional and intellecutal growth of children. For that reason, infants' reading rooms have emphasized the cultural and educational function for the children recently. This research analyzed spatial arrangement features and interior design of infants' reading rooms in five public libraries through case studies. The results are as follows: First, infants' reading rooms are consists of data storing area, office area, reading area and convenience area. Second, infants' reading rooms generally have bookcases around the walls and the reading space, tables, and stools in the middle. Third, reading rooms lack elements that could make them fun and interesting to children. In conclusion, infants' reading rooms in public libraries, should consider the furniture arrangements, interior designs.

      • KCI등재

        초임계 이산화탄소를 이용하는 친환경 공정에 의한 다공성 고분자의 제조

        강세란,홍성수,이민규,이석희,천재기,주창식 한국환경과학회 2004 한국환경과학회지 Vol.13 No.3

        An experimental study on the preparation of monolithic porous polymers by environmentally friend process in supercritical carbon dioxide has been carried out. Polymerization mixture composed of a cross-linking monomer, initiator and functional co-polymer was charged in the reactor with sapphire window. After the system was purged with a flow of CO₂ for 15 min, the reactor was pressurized with liquid CO₂ up to 100 bars. The reactor was isolated from and placed back to the system via quick connector for shaking until the mixture had become fully homogeneous. The reactor was then heated and pressurized to the required reaction conditions and left overnight. After cooling and CO₂ evacuation, the polymer was removed from the reactor as dry, white, continuous monoliths. The effect of experimental conditions on the physical properties of porous polymer was systematically examined, and it was found that monomer content had a major effect on the physical properties of the polymers.

      • 韓國人 下顎骨에 관한 體質人類學的 硏究

        李在學,朴景蘭,金源式 충남대학교 의과대학 지역사회의학연구소 1990 충남의대잡지 Vol.17 No.1

        Korean mandibles(male 71, female 23) were measured and analysed physical anthropologically, and compared with those of early 1900s Korean and with those of other nations. The results were as follows: 1. According to the Thomson index, the mandibular type of early 1900s Korean was mesognath, but changed into dolichognath lately. 2. It was considered that the national differences and chronologic changes in the same species were affected by genetic and environmental factors, but the environmental factors, such as improvement of nutritional conditions, changes of foodstuffs and the changes of living pattern etc. should be encountered more significantly.

      • 인삼의 polyacetylene 성분 PQ-6의 분리

        류재하,장세란 숙명여자대학교 약학연구소 1998 약학논문집-숙명여자대학교 Vol.15 No.-

        C-17 polyacetylene compound was isolated from the roots of Panax ginseng. Its structure was determined by 'H-NMR, ^(13)C-NMR and 'H-'H COSY spectra as PQ-6 (C_(19)H_(26)O_(4); 8- acetoxy-9,10-epoxy-heptadeca-l-ene-4, 6-diyne-3-ol). This compound was previously reported from Panax quinquefolium, but purified from Panax ginseng firstly at this time. PQ-6 from ginseng showed the strong inhibitory activity of nitric oxide synthesis in LPS-activated macrophages. The IC_(50) value of this activity was 1.5㎛.

      • KCI등재

        흉골골절이 의심되는 외상환자에서 초음파의 진단적 효용성

        염석란,김재광,이근,박철완,양혁준,현성열,임용수,진욱 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

        Purpose: This study compared the value of ultrasonography(US) in the diagnosis of sternal fractures with those of conventional radiography and bone scan. Material and Method: From March 2000 to March 2001, in Gil Medical Center, Gachon Medical College, 44 patients(22 women and 22 men, mean age 46 years, range 5∼81 years) complained of tenderness in the sternal area. The cases histories of these patients with clinically suspected sternal fracture due to blunt trauma were prospectively studied. At the time of admission, conventional radiography(sternal view) was done. At one day after admission, sternal ultrasonography was obtained, and after 4∼5 days, a bone scan was done. Sternal ultrasonographic findings, conventional radiographic findings, and bone-scan findings were compared. In addition, a 12-lead ECG was done. When it was necessary, cardiac enzyme was checked and echocardiography was performed. Result: In 21 of 44 patients(48%), a sternal fracture was found by sternal US. Only 9 of 21 patients (43%) were diagnosed as having a sternal fracture by using conventional radiography. 23 of 44 patients (52%) have negative findings on sternal US; they also had negative findings on conventional radiography. Except for 7 unchecked patients, 13 of 21 patients(62%) were diagnosed as having a sternal fracture by bone scan, and among the 23 patients who had negative findings on sternal US, the 19 patients checked with a bone scan also had negative findings. Conclusion: Sternal US can find sternal fractures that are difficult to find on conventional radiography. Compared with bone scan, sternal US takes a shorter time and sternal US is not difficult. Additionally, combined lesions with sternal fractures(peristernal hematoma, soft tissue swelling) and costar cartilage fractures are diagnosed more easily when using sternal US.

      • 물리교과 중 고난도 영역에 대한 연구

        朴載昊,李銀蘭 부산대학교 사범대학 과학교육연구소 1992 科學敎育硏究報 Vol.19 No.-

        The following are the results of present study which is about the degree of hardness in the teaching and learning materials of the high school's physics. 1. Among 193 teaching and learning elements, 10% and 20 of them are hard and easy, respectively, for the teachers while 30% and 10%, hard and easy, respectively, for students. 2. The hardest elements are the centrifugal and inertial force and motion chapter. the reason for the hardness is believed to stem from the definitions and introduction of the abstract elements. 3. It seems desirable to switch the yeaching technique from deduction to induction in defining and introducing the centrifugal and centripetal forces.

      • 위의 유암종과 선종의 병발 1례

        장재식,강혁주,이중현,서영범,윤병구,김용섭,이구,서정일,양창헌,이창우,김정란,윤환중 東國大學校醫學硏究所 2000 東國醫學 Vol.7 No.-

        유암종은 전신에 퍼져 잇는 장크롬친화성 세포에서 기원하는데 위의 유암종은 비교적 드문 질환으로 모든 유암종의 1.9~2.2%에 해당하며 위에 발생하는 종양의 1% 미만에서 보고되고 있다. 유암종은 일반적으로 증상이 비특이적이고 면역조직화학검사에 의해서 진단되기 때문에 과거에는 드물게 발견되었으나 최근 내시경 기기 및 술기의 발전과 검사 빈도의 증가 및 면역조직화학검사의 발달로 진단율이 증가 추세에 있으며, 드물지만 유암종에서 선암과 공존하는 예들이 보고되고 있다. 저자들은 심와부 동통을 주소로 내원한 70세 남자 환자의 상부위장관내시경 검사에서 위체상부의 대만곡에서 0.4×0.4 cm 크기의 중간 함몰을 가진 Yamada 1형의 용종과 함께 전정부의 전벽에서 0.8×0.5 cm 크기의 융기된 점막 소견을 보여 조직학적으로 각각 위유암종 및 위선종임을 확진한 후 내시경적 용종 절제술로 치료한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Carcinoid tumors are arisen from enterochromaffin cells, which are scattered throughout the body. These tumors are composed of variable numbers of cells that contain endocrine granules in their cytoplasm, which can be identified by immunohistochemistry and electron microscopy. Gastric carcinoid tumors are relatively rare tumor, the reported incidence being 1.9~2.2% of all carcinoid tumors and less than 1% of all gastric tumors. Sometimes, composite carcinoid tumors and adenocarcinoma is reported. We experienced a case of the coincidence of carcinoid tumor and adenoma at the other site of the stomach in a 70 year old male patient. Gastrofiberscope showed 0.4×0.4 cm sized Yamada type I polyp with central depression on the greater curvature of the proximal body and 0.8×0.5 cm sized focal slightly elevated mucosa on the anterior wall of the antrum. The endoscopic biopsy specimens revealed carcinoid tumor and tubular adenoma with moderate atypism, respectively. The carcinoid tumor and adenoma were removed by endoscopic polypectomy. According to the follow-up gastrofiberoscopy after 7 month later, both lesions were nearly normal mucosa except whitish atrophic change after polypectomy.

      • KCI등재

        기관내 삽관이 어려웠던 폐동맥 sling을 동반한 기관협착 환아1예

        염석란,신중호,신종환,이근,류일,현성열,진욱,김재광 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

        Pulmonary arterial sling, a rare developmental vascular anomaly forms a sling around the distal trachea and the proximal right main bronchus, where it sometimes makes tracheo-bronchial stenosis. Tracheo-bronchial stenosis from pulmonary arterial sling may produce non-specific symptoms of stridor, noisy breathing, dyspnea, recurrent upper respiratory tract infection, chronic cough, and dysphagia. The diagnosis of this anomaly begins with a high index of suspicion because of the lack of pathognomonic finding on usual evaluation. In this case, initial difficult intubation makes us evaluate further. Other cases reported the diagnosis is established by imaging studies, usually MRI and angiography. But, when our case was evaluated, we used cervico-thoracic enhanced computered tomography and tracheal fluoroscopy. Up to now, tracheobronchial stenosis from vascular anomaly is a rare and challenging disorder with a poor prognosis. However, early exact diagnosis would make us perform the accurate surgical treatment and reduce the mortality and morbidity.

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