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김계엽,김태열,김경윤 東新大學校 2003 論文集 Vol.13 No.-
The purpose of this study was to investigate and analyze effect of needle transcutaneous electrical nerve stimulation with the change of immunohistochemistry method through the change of c-fos in spinal dorsal horn(pre, 4, 8, 12 and 24h). An experimental arthritis induced in 100 Sprauge-Dawley rats with a mixture 3% carrageenan and 3% kaolin(0.1 ㎖ in sterile saline) into the joint cavity of one knee. Each group was randomly divided into four groups; Group Ⅰ : control group, Group Ⅱ : arthritic limb-induced group, Group Ⅲ : Needle TENS application on ipsilateral arthritic limb(2 Hz, 200 μs, 20 min) group, Group IV : Needle TENS application on contralateral arthritic limb(2 Hz, 200 μs, 20 min) group. The results of this study were as follows: 1. In naked eyes opinion, c-fos immunoreactive positive neurons are increased markedly 4 hours after arthritis limb-induced in Rexed Ⅰ, Ⅱ of superficial dorsal horn. Group Ⅲ and group Ⅳ are more decreased than Group Ⅱ at 8 hours after arthritis limb-induced. 2. The c-fos immunoreactive positive neurons after application needle like transcutaneous electrical nerve stimulation on arthritic limb-induced model group are more decreased than only arthritic limb-induced group. 3. The number of c-fos immunoreactive positive neurons in superficial dorsal horn was decreased markedly 4 hours after arthritis limb-induced. Group Ⅲ and group N are more decreased than Group Ⅱ at 8 hours after arthritis limb-induced(p<0.001). Specially Group Ⅲ showed the most significantly effect at 8 hours(p<0.01). The above results suggest that needle transcutaneous electrical nerve stimulation effectively reduced in arthritic limb-induced model. In addition, greatly decreased the number of c-fos neurons explains needle transcutaneous electrical nerve stimulation application on ipsilateral arthritic limb is more effective than that on contralateral arthritic limb.
음낭외상시 고환파열에 대한 초음파 검사의 진단적 유용성
김경영,한동준,신대은,노준,문형윤,임동훈,김철성,박성운 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.3
Purpose: We determined the use of scrotal ultrasonography in the initial diagnosis and management of testicular injuries due to blunt scrotal trauma. Mateiials and Methods: We reviewed 54 patients of scrotal trauma in the last 8 years. Forty patients were evaluated by ultrasonography preoperatively. A heterogeneous echo pattern of the testicular parenchyma with loss of oval shape, contour definition was the basis for diagnosis of testicular rupture. Among them, 33 cases underwent scrotal exploration and 7 cases were managed conservatively. The remaining 14 patients were evaluated only by physical examination, 8 patients of them were explored immediately because of suspicious testicular mpture. The accuracy of ultrasonography were determined by comparing radiographic interpretations with intraoperative findings. Results: Among the 33 patients who were evaluated by ultrasonography and explored immediately, there were 26 suspected testicular ruptures on ultrasonography. Surgical exploration revealed testicular rupture in 23 and simple hematoma in 10. The testicular rupture was correctly diagnosed by ultrasonography in the 22 cases, and there were 4 false-positive and 1 false-negative diagnoses of testicular rupture. The sensivity and specificity for the diagnosis of testicular rupture are 96% and 60%, and the positive and negative predictive values are 85% and 86%, respectively, Conclusions: Scrotal ultrasonography, with the main radiographic finding of a heterogeneous echo pattern of the testicular parenchyma with loss of oval shape, contour definition, is highly sensitive on the diagnosis of testicular rupture. And it increases the salvage rate for testicular rupture with preservation of the testicular function and prevents delayed complications of chronic pain, atrophy and orchiectomy associated with missed testicular rupture.
윤기영,김경숙 서원대학교 교육연구소 1993 敎育發展 Vol.12 No.1
The purpose of this study are to examine kindergarten's extended-day program(KㆍEㆍP) and to project the concept and the basic direction of KㆍEㆍP management. The study includes analysis of awarness, attitude, and needs of participants for KㆍEㆍP. The resuts of this study are as follows; 1.The KㆍEㆍP means 1-3 hour educational activities with care service which is added to regular program in afternoon to increase learning experience of children. 2.The KㆍEㆍP is developed by participant's change of awarness and needs. 3.Compared with regular program, the KㆍEㆍP has special characters such as diversity, extra curricular activity, complex, extended hour and lunch time. 4.The KㆍEㆍP is practiced in many private kindergarten's popularly. 5.Intergrated project approach is a meaningful method for KㆍEㆍP. 6.Curriculum localized is necessary to the KㆍEㆍP. 7.The direction for suitable KㆍEㆍP management is, 1) to found program development and management on localized curriculum with children, parents, family, local community and each kindergarten's empathy. 2) to exercise the program more widely and deeply during the extended hour than in the morning. 3) to pursue the diversity and spontaneousness of children through real life experience. 4) to make a integreation between education and care as well life experience view and logical view. 5) to have flexibility according to the change of situation in grouping and forming the program.
성견에서 교정적 고정원으로서의 티타늄 미니스크류에 대한 연구 : An experimental investigation in dogs
윤병수,최병호,이원유,김경남,심형보,박진형 대한치과교정학회 2001 대한치과교정학회지 Vol.31 No.5
교정치료에서 원하는 치아이동을 위해서는 안정된 고정원이 필요한데 티타늄 미니스크류가 매식과 제거가 쉽고, 구강 내 여러 부위에서 적용이 가능하고, 환자가 느끼는 불편감이나 비용적인 부담이 적고, 제거 후에 치유가 빠르게 진행될 수 있는 등의 장점이 있어 최근에 교정적 고정원으로 사용되기 시작하였다. 티타늄 미니스크류를 교정적 고정원으로 사용한 임상 예들이 여러 편 발표되었는데 미니스크류의 이완이 가장 큰 실패의 원인으로 보고되고 있다. 그러나 지금까지 보고된 논문들에서 교정적 고정원으로 안정성을 줄 수 있는 스크류의 식립 길이에 관한 연구가 없는 상태이다. 교정적 고정원으로 미니스크류를 효과적으로 사용하기 위해서는 식립 부위에 따른 골구조와 골밀도 차이를 고려한 식립 길이에 관한 기준이 필요하다. 이에 본 연구에서는 성견의 상악골과 하악골에서 직경 2mm 티타늄 미니스크류를 다양한 길이로 식립하고 교정력을 적용한 후 그 안정성을 평가하여 교정적 고정원으로 사용될 수 있는 미니스크류의 식립 길이를 결정하고자 하였다. 미니스크류가 상악에서는 6mm이상, 하악에서는 4mm 이상이 골 내에 식립될 때 8주 동안 200g의 교정력에 동요도나 위치변화를 보이지 않았다. 식립 부위로는 부착치은 부위 치근 사이에 식립될 때 구강청결이 유지되고 미니스크류 주변 치은조직에 자극을 주지 않아 정상적인 조직으로 유지 될 수 있었다. 또한 교정력 적용 8주 후 치근단 방사선 사진검사에서 스크류 주변 치근 흡수나 치조골 흡수, 치주 인대 손상이 관찰되지 않았다. 따라서 상 ㆍ 하악 골밀도와 골구조의 차이를 고려하여 미니스크류의 골내 식립 길이를 적절히 조절함으로써 교정적 고정원으로 티타늄 미니스크류가 효과적으로 사용될 수 있다고 생각된다. Titanium miniscrews are being used increasingly as an anchorage for tooth movement, because they are easy to place and to remove, increase the number of sites available, give minimum strain to patients regarding surgical procedures, and offer uneventful healing after removal. The use of titanium miniscrews as an orthodontic anchorage has been reported in clinical case reports, but clinicians hove experienced screw loosening when using such screws. To our knowledge, there are no published reports evaluating the stability of miniscrews. Information about the length of miniscrews used in relation to the location is of some importance, as stability will vary depending on bone quality. The purpose of this study was to evaluate a variety of lengths of miniscrews (diameter: 2mm) which were inserted in maxilla or mandible and to demonstrate in a dog moedl which miniscrew provides fundamental stability in the jaws. 10 mm long miniscrews in the maxilla and 8mm long miniscrews in the mandible showed no clinical mobility and retained their position throughout an 8 weeks force (200g) application. The mucosal condition around the screws was healthy in cases in which miniscrews were inserted in the alveolar bone between the roots and the head of the screws emerged into the attached gingiva. When the force application was terminated, radiographic analysis revealed neither root resorption nor periodontal pathology around the miniscrews that remained stable during the entire treatment period. This study suggests that if titanium miniscrews with adequate length are properly used depending on the location, they provide sufficient stability for orthodontic anchorage.