경막 내 colistimethate 투여로 치료한 다제 내성 cinetobacter baumannii 뇌실염

홍유아,유진홍,김진진,모은영,안건희,정희경,김진석,이현정,정미향,윤승배 대한감염학회 2009 감염과 화학요법 Vol.41 No.4

Acinetobacter species is a non-fermentative aerobic gram-negative coccobacillus that is an important pathogen found in nosocomial infections. Recently, multi-drug resistant Acinetobacter baumannii (MDR-AB) infections have been increasing and pose a serious problem. Most such infections present as bacteremia, pneumonia, or a wound infection; however, CNS infections are very rare. We herein present a case of ventriculitis caused by MDR-AB in a 37-year old man after a neurosurgical intervention. The patient was successfully treated with intrathecal colistimethate.

5세 남아의 Influenza 종격동기종 및 대엽성 폐렴 1례

오희성,한유진,연은경,선동신,송준환,박경배,박준수,김영통,남해선,최영진,김용배 순천향의학연구소 2009 Journal of Soonchunhyang Medical Science Vol.14 No.3S

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시각장애학교 교사의 학교도서관 이용 및 활용수업 실태 : A Study on Teachers' Use of the School Library and School Library-Assisted Instruction at School for the Visually Impaired

고유진,정은희 이화여자대학교 특수교육연구소 2015 특수교육 Vol.14 No.3

연구목적: 본 연구는 시각장애학교 학교도서관 이용 및 활용수업 실태를 알아보고자 하였다. 연구방법: 시각장애 중·고등학교 교과 담당 교사 86명을 대상으로 한 조사연구를 실시하였다. 연구결과: 과반수정도가 도서관 활용수업을 진행한 적이 있다고 하였다. 국어교사는 대부분 경험이 있는 반면 다수의 수학교사는 경험이 없었으며, 활용수업을 실시하지 않는 이유로는 과목의 특성을 언급하였다. 도서관 활용수업은 교과수업의 질을 높이기 위해 실시한다고 하였고, 대부분의 교사가 시각장애학생에게 도서관 활용수업이 필요하며 교수학습 면에서도 중요하다고 하였다. 또한 학교도서관 활용수업을 통해 자기주도 학습능력, 정보 활용능력, 수업에 대한 관심과 흥미도가 모두 향상된다고 인식하고 있었다. 도서관 활용수업을 활성화시키기 위해서는 대체자료 및 보조공학기기의 보완, 편의시설이 필요하다고 하였다. 결론: 전담 사서교사의 배치를 통해 체계적인 지원 체계와 전문성을 확보하고 지속적인 연수를 통하여 학교도서관 활용수업에 대한 홍보, 교육과정과의 연계 및 다양한 프로그램과 교수매체의 개발이 필요하다. Purpose: This research examines teachers’ use of school library and their implementation of school library-assisted instruction at middle and high schools for the visually impaired. Method: A questionnaire was distributed to 86 middle and high school teachers for the visually impaired. Results: First, more than a half of the teachers had implemented school library-assisted instruction. While most teachers of Korean had taught library-assisted classes, most math teachers responded that they had not used school libraries because of the nature of the subject matter. Regarding the purpose of school library-assisted instruction, a majority of teachers mentioned the improvement of the quality of teaching and learning. Second, most teachers acknowledged the benefits of library-assisted instruction for visually impaired students and its importance in teaching and learning. The teachers expected that, by utilizing school libraries, they could enhance the visually impaired students’ self-initiated learning ability, information utilization ability, attention and interest in class. Lastly, teachers suggested that alternative materials and assistive technology should be made available for more effective utilization of school libraries. Conclusion: The research indicates that support systems are also necessary, including professional librarians, continual education on school library-assisted instruction, development of connected curriculum, and development of instructional media.

저탁도시 PAC와 Ca-PAX의 입자제거 및 슬러지 탈수성 비교

심유섭,유명진,조희경,이상수,곽종운 대한상하수도학회 2002 상하수도학회지 Vol.16 No.4

This study was accomplished to evaluate the characteristics of particle removal and sludge dewatering and to find out the optimal condition of coagulation depending on the dosage of different coagulants (PAC, Ca-PAX) in low turbidity water. The experiments were carried out at a pilot plant of conventional rapid sand filtration system using artificial raw water. There was no large difference in the removal efficiencies of turbidity and total particle counts for both coagulants. However, Ca-PAX was required less than PAC to obtain the same efficiency of removal, and the initial head loss in a filter increased more fastly in case of PAC. The results on the evaluation of sludge from settling tank indicated that specific resistance of sludge was decreased inversely to the dose of both coagulant and specific resistance of Ca-PAX sludge was lower than that of PAC, therefore dewatering of sludge in case of Ca-PAX was better.

GT rotary file을 이용한 근관성형법과 충전방법의 비교

강유미,진정희,유미경,이세준,이광원 大韓齒科保存學會 2002 Restorative Dentistry & Endodontics Vol.27 No.5

The purpose of this study was to compare the shaping time of two shaping methods and the leakage of three different obturation techniques. Ninty three canaled human molar teeth were used. which were randomly divided into two groups of forty teeth each and ten control teeth. After working length determination. the one group was prepared crowndown technique using rotary root canal instruments of GT rotary files .12/20, .10/20, .08/20 and .06/20 taper(Maillefer Instrument SA. Switzerland). The other group was instrumented with Gates Gildden burs(#1, #2 and #3) to coronal preparation and GT rotary files .08/20 and .06/20 taper to apical preparation. Shaping time was measured. After root canals were instrumented, they were divided to three subgroups and obturated as follows: Subgroup 1, obturated with single cone method : Subgroup 2, obturated with lateral condensation : Subgroup 3, obturated with continuous wave technique. Three subgroups were obturated using non-standardized gutta-percha cone(Diadent, Korea, 06 or .08 taper) and AH-26(Dentsply DeTrey, Germany) as a root canal cement. Ten unobturated teeth served as positive and negative controls. After immersion in 2% methylene blue solution for 1 month, the teeth were washed during 24h. The teeth were determineralized in 10% nitric aciid and dehydrated by immersion in 80, 90 and 100% ethyl alcohol. The teeth were finally cleared and stored in 100% methylsalicylate, and apical dye penetration was evaluated under stereomicroscope(Leica M420, LC, U.S.A) at (×) 8.75 magnification. Liner measurement of dye penetration was assessed with the use of digitalized image analysing system (analySIS, GmbH, Germany), The data were analysed statistically using independent T-test and Two-way ANOVA and Tukey test. The result were as follows: 1. In canal prepared with GT^Trotary file, shaphing time taked more than the group of using Gates Gildden drill to coronal preparation without statistical significant (p>0.05). 2. The group of single cone obturation using canal preparation of GT^TM rotary files showed significantly more apical leakage than those of lateral condensation and continuous wave technique regardless of shaping method (p<0.05). 3. The group of single cone obturation using canal preparation of GT^TM rotary files and Gates Gildden drill showed significantly more apical leakage than those of continuous wave technique regardless of shaping method (p<0.05). 4. Regardless of shaping method. The group of continuous wave obturation showed less apical leakage than those of lateral condensation without statistical significance (p>0.05). 5. The group of single cone obturation using canal preparation of GT^TM rotary files and Gates Gildden drill showed more apical leakage than the group of lateral condensation using sane shaping method without statistical significance (p>0.05).

鐵筋콘크리트 보에서 剪斷鐵筋이 휨耐力에 미치는 影響

고유신,기진호,김병호,은희창,서일교 제주대학교 산업기술연구소 2000 尖端技術硏究所論文集 Vol.11 No.2

Shear reinforcement has an important role to strengthen shear capacity of reinforced concrete beam. Although the flexural design corresponding to design code does not consider the effects of the shear reinforcement, its utilization in flexural region leads to the improved ductility and the enhanced strength by confining concrete. It allows to design the over-reinforcement beam. In this study, we considered the effects of the shear reinforcement on the flexural ductility and strength of reinforced concrete beam according to the spacing of shear reinforcement, steel ratio, and shear span ratio. The flexural capacity depends on the amount of longitudinal bars and the ductility the confinement degree by the shear reinforcement. The flexural analysis varies with the stress-strain relation of confined concrete. The analytical results based on the stress-strain relation presented by Chung almost corresponded to the experimental ones. It was observed that the proper design of shear reinforcement leads to utilize the over-reinforcement concrete beam.

림프부종 치료프로그램이 림프부종이 있는 말기 암 환자의 사지둘레와 신체증상에 미치는 영향

박명희,허수진,최은미,정유니 병원간호사회 2006 임상간호연구 Vol.11 No.2

Purpose: This study was performed to investigate the effects of lymphedema treatment program on extremities circumference and physical symptoms in terminal cancer patients with lymphedema. Method: The subject was 13 patients diagnosed with lymphedema and admitted to C Hospital, hospice unit from March 1 to August 31, 2004. The effects of treatment were evaluated by measuring extremities circumferernce and by assessing physical symptons. Data were analyzed by using repeated measures ANOVA, Scheffé multiple comparisons. Result: The results were as follows: Extremities circumference was reduced significantly 30.8cm after last treatment compared with 33.4cm pre-treatment. Physical sysptom, 'heaviness' was improved significantly 4.2 after last treatment compared with 7.8 pre-treatment and difficulty to mobility was improved significantly 4.5 after last treatment compared with 7.4 pre-treatment. Conclusion: These findings indicate that lymphedema treatment program could be an effective nursing intervention for reducing extremities circumference and improving physical symptoms in terminal cancer patient.

Self-drilling 방식의 마이크로임플란트 식립에 의해 발생하는 피질골 스트레인의 유한요소해석

박진서,유원재,경희문,권오원 대한치과교정학회 2009 대한치과교정학회지 Vol.39 No.4

골밀도가 높고 두꺼운 피질골에 마이크로임플란트를 self-drilling 방식으로 식립하는 경우 과도한 수준의 골부하(bone loading)가 발생할 위험이 있으며 이는 인접골의 정상적인 골개형(bone remodeling)에 장애를 초래할 수 있다. 이에, 본 연구에서는 유한요소해석으로 두께 1.0 mm의 피질골에 Absoanchor SH1312-7 마이크로임플란트((주)덴토스, 대구, 대한민국)가 self-drilling 방식으로 식립되는 과정(10회전, 식립깊이 5 mm)을 모사(simulation)하였으며 식립 단계별로 피질골에 발생되는 스트레인을 조사하였다. 식립중 마이크로임플란트 첨부의 절삭연(cutting flute)에 의한 골삭제로 생기는 나사길(threaded groove)의 치수를 얻기 위하여 가토 경골에 마이크로임플란트를 식립/제거한 후 Micro CT (Explore Locus RS, GE Healthcare, Ontario, Canada)를 이용하여 기하형상을 측정하였으며 이를 치밀골의 유한요소모델에 반영하였다. 해석결과, 치밀골에 발생되는 스트레인은 임플란트 식립깊이에 따라 증가하였고, 초기단계에서 나사산에 인접한 골에 국한되던 과부하 부위(스트레인이 4,000μ-strain을 상회하는 영역)가 식립깊이 증가에 따라 인접골 전체, 즉 나사산 인접부는 물론 골(valley) 부위에 접하는 모든 영역으로 확장되었다. 본 연구를 통해, self-drilling 방식으로 마이크로임플란트를 식립할 때 치밀골에 발생하는 스트레인 크기는 생리적인 골개형을 저해할 수 있는 수준임을 확인할 수 있었다. Objective: The aim of this study was to evaluate the strain induced in the cortical bone surrounding an orthodontic microimplant during insertion in a self-drilling manner. Methods: A 3D finite element method was used to simulate the insertion of a microimplant (AbsoAnchor SH1312-7, Dentos Co., Daegu, Korea) into 1 mm thick cortical bone. The shape and dimension of thread groove in the center of the cortical bone produced by the cutting flute at the apical of the microimplant was obtained from animal test using rabbit tibias. A total of 3,600 analysis steps was used to calculate the 10 turns and 5 mm advancement of the microimplant. A series of remesh in the cortical bone was allowed to accommodate the change in the geometry accompanied by the implant insertion. Results: Bone strains of well higher than 4,000 microstrain, the reported upper limit for normal bone remodeling, were observed in the peri-implant bone along the whole length of the microimplant. Level of strains in the vicinity of either the screw tip or the valley part were similar. Conclusions: Bone strains from a microimplant insertion in a self-drilling manner might have a negative impact on the physiological remodeling of cortical bone.

화상환자에서 혈청중 가용성 Interleukin-2 Receptor의 변동

이희성,이유진,이종량,백광진,하재성,전건수 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.2

Cell-mediated immunity frequently becomes severely impaired after burn. However, the cause of postburn immune dysfunction is unclear and controversy exists over both pathophysiology and clinical relevance of these abnormalities. This study was undertaken to invstigate the immune responses in vivo of patients with burn. Levels of soluble IL-2R, a sensitive marker of T-cell activation, were measured in 26 patients with burn. Serum soluble IL-2R levels in patients with burn were significantly higher than those of normal controls. Serum soluble IL-2R levels were correlated closely with the severity of the burn. The burn patients were classified according to the outcome. Patients with fatal outcom always showd a higher soluble IL-2R levels than survivors. Postburn sera significantly suppressed mitogen-indeced lymphocyte proliferation. These data indicate that soluble IL-2R might be useful parameters for monitoring of the clinical course in burn patients.

폐구리염화물용액의 분무열분해반응에 의한 생성분말의 특성에 관한 연구

박희범,최재권,한진아,유재근 호서대학교 반도체제조장비국산화연구센터 2001 반도체장비학술심포지움 Vol.2001 No.-

본 연구의 목적은 폐 구리염화물 용액을 원료로 사용하여 분무열분해 공정에 의해 평균입도가 1 ㎛ 이하이며 입도분포가 균일하고 치밀한 조직을 나타내는 미립의 구리산화물 분말을 제조하는데 있다.또한 본 연구에서는 분무열분해 공정에 의해 생성되는 분말의 특성에 영향을 미치는 반응 온도, 원료용액의 유입속도, 분위기기체 및 공기의 유입속도, nozzle tip 크기 및 원료용액의 농도 등의 반응인자들의 영향을 검토하였다.